WO2018038696A1 - Trolley for lifting and moving gas cylinders - Google Patents

Abstract

A trolley for lifting and moving gas cylinders comprises a platform (1) with wheels (2, 3), and a supporting element, wherein the platform (1) is in the form of a frame (17) consisting of three members (18, 19, 20). The supporting element for a gas cylinder (5) is in the form of a vertical supporting post (4), which is connected to curved members (6, 7), said curved members (6, 7) being connected by the ends thereof to two lateral vertical hollow posts (15, 16). The trolley comprises a lever mechanism consisting of an upper arc-shaped lever (8) and a lower lever (9), which are movably connected to each other by two vertical traction members (13, 14). The lever mechanism also comprises two upper hinge devices (22, 23), each of which comprises a fixed supporting element (24) of the lever mechanism and a short lever arm (25). The lower lever (9) of the lever mechanism is comprised of a horizontal crossbar (12), two parallel right and left brackets (10, 11) and a bottom rest for supporting the base of a gas cylinder (5), said rest being in the form of a tubular element (21).

Description

 TROLLEY FOR LIFTING AND MOVING GAS CYLINDERS

Technical field

 The invention relates to structures for lifting and moving gas cylinders that are used for the welding process, namely, to a trolley for lifting and moving gas cylinders. Invention may be

used for easy lifting from a horizontal surface and for

further transportation by a person of gas cylinders for welding, or other cylinders that have an elongated cylindrical shape. Prior level

 Known cylinders for gas welding, which have a weight of 25 kg. up to 150 kg. Due to the wide use of these cylinders for the welding process, the transportation of such a cylinder by a person within the industrial space, the use of such a cylinder is an urgent technical problem. In this process, an important step is the ability to conveniently and safely lift and load the balloon onto the transportation means. Typically, local transportation of a gas cylinder is carried out by using various trolleys for transporting gas cylinders.

 Famous trolley for transporting gas cylinders "Acro-Miles Tsylinder Air Trucks. Continuous Frame Flow-Back, 150 lb., Tsilinder apasity 1, Model M> RSTV40SP "(A RO-MILS Cylinder Truck. Continuous Frame Flow-Back, 150 lb., Cylinder Capacity 1, Model # RCTV40SP), which contains a platform with wheels, a support element for a gas cylinder, and this support element contains a shaped socket for installing and fixing a gas cylinder

(ht ^ s: // w .grainger.com / product / AKRO-MILS-Cylmder-Truck-WP163512 /) [1]. it the device is designed for the local transportation of gas cylinders weighing up to 70 kg., but this design does not improve the safety of working with gas cylinders, does not reduce the likelihood of injury to people when lifting and moving gas cylinders, does not reduce the physical load on an employee when lifting cylinders on a trolley and when removing the cylinders from the trolley more than 10 times, and also does not reduce the time spent on human work when replacing cylinders with industrial gases in the welding process.

 Known trolley for transporting gas cylinders "Acro-Miles Tsylinder Air Trucks. Continuous Frame Frame-Back, 500 lb., Tsilinder Kapasiggi 1, Model jVe RSTV40SP "(A RO-MILS Cylinder Truck. Continuous Frame Flow-Back, 500 lb., Cylinder Capacity 1, Model # RGTS10SP), which contains a platform with wheels , a support element for a gas cylinder, which is connected to the platform, and this support contains a shaped socket for installing and fixing the gas cylinder, as well as a lower stand for installing the bottom of the gas cylinder. This device is designed for the local transportation of gas cylinders weighing up to 230 kg., But this design does not improve the safety of working with gas cylinders, does not reduce the likelihood of personal injury when lifting and moving gas cylinders, does not reduce the physical load on the worker when lifting cylinders on the trolley and when removing the cylinders from the trolley more than 10 times, and also does not allow to reduce the time spent on human work when replacing cylinders with industrial gases in the welding process.

Closest to the proposed invention is the "Undercarriage for the welder", which contains, which contains a platform with wheels, a support element for a gas cylinder, which is connected to the platform, and this support contains a shaped socket for installing and fixing a gas cylinder, as well as a lower stand for installing the bottom of a gas cylinder (US patent for the invention X ° 5,730,891 of 03/24/1998, class C. B23K 37/00, B23K 9/32, publication of 24.03.1 98 [3]). This invention is intended to lift a heavy gas cylinder from the floor surface and install it in the correct position on the chassis with the chassis for transporting the cylinder and the welding machine at the same time. But this invention does not allow to increase the safety of working with gas cylinders, to reduce the likelihood of injuring people when lifting and moving gas cylinders, to reduce the physical load on an employee when lifting cylinders on a trolley and when removing cylinders from a trolley more than 10 times, and also does not allow to reduce the time spent on human work when replacing cylinders with industrial gases in the welding process.

 The basis of the invention is the task of creating a trolley for lifting and moving gas cylinders, the design of which, due to new features, namely due to the presence of new elements, their shape and their relative position and connection, would improve the safety of working with gas cylinders, reduce the likelihood of injuring people when lifting and moving gas cylinders, reduce the physical load on an employee when lifting cylinders on a trolley and when removing cylinders from a trolley more than 10 times, reduce the time spent on human bots when replacing industrial gas cylinders during welding.

 Disclosure of invention

The problem is solved in that the trolley for lifting and moving gas cylinders, which contains a platform 1 with wheels 2, 3, a support element for a gas cylinder 5, which is connected to the platform 1, and this support contains a shaped socket for installing and fixing a gas cylinder 5 , as well as the lower stand for installing the bottom of the gas cylinder 5. New is that the platform 1 is made in the form of a frame 17 of three parts, two of which are side parts 18, 19 are parallel, and the third rear part 20 is perpendicular to They connect to the side parts 18, 19 and connect them to each other, and to each of the side parts 18, 19 of the frame 17 one independent independent half shaft 26, 27 is connected, respectively, and on each of their two half shafts 26, 27 there is one corresponding wheel 2, 3 A support element for a gas cylinder 5 is made in the form of a vertical support column 4, which is rigidly connected to at least two horizontal arc parts 6, 7 in their central parts, and also a vertical support column 4 is rigidly connected in the lower part to the rear part 20 frames 17 platforms 1. Moreover, each of at least two arc parts 6, 7 with its ends is also connected to two lateral vertical hollow posts 15, 16, each of which is located and rigidly fixed at an angle to platform 1 from the left and right sides of the cart, respectively, and not less than two arc parts 6, 7 together with the vertical support column 4 and together with the side vertical hollow columns 1, 16 form a lodgement for the gas cylinder 5. In addition, the trolley contains a lever mechanism, which in turn contains an upper arcuate lever 8 and lower arm 9, which is movable to transmit force from the upper arcuate arm 8 to the lower arm 9 interconnected by two vertical rods 13, 14, each of which is respectively located in the inner cavity of one of the two lateral vertical hollow racks 15, 16. Moreover, the lever mechanism also contains two upper hinge devices 22, 23, each of which is respectively located in the upper part of one of two lateral vertical hollow struts 15, 16 and each of the two upper hinge devices 22, 23 each

of the corresponding side of the truck movably interconnects the upper arcuate lever 8, the corresponding vertical hollow strut 15, 16 and the corresponding vertical rod 13, 14. Moreover, each of the two upper hinge devices 22, 23 contains a fixed support element 24 of the lever mechanism and a short lever a shoulder 25, where a short lever arm 25 at one connection point is movably attached to the edge of one of the arches of the upper arcuate lever 8, which is a long lever arm, and is movably attached to the corresponding vertical link 13, 14, and such connections of each of their two upper hinge devices 22, 23 create a movable axis A of the upper hinge devices 22, 23 of the lever mechanism. In this case, the stationary support element 24 of each of the two upper hinge devices 22, 23 is rigidly connected with its lower part to the corresponding vertical hollow pillar 15, 16, and in its upper part the fixed support element 24 is movably connected to the short lever arm 25 of the corresponding hinge device 22, 23, and such joints form a fixed axis B of the upper hinge devices 22, 23, and this fixed axis B is the fulcrum of the linkage. In this case, the lower lever 9 of the lever mechanism

formed of a horizontal jumper 12, which rigidly and perpendicularly connects at the bottom two vertical link rods 13, 14 of a linkage mechanism, of two parallel left and right brackets 10,

1 and from the lower stand for installing the bottom of the gas cylinder 5, which is made in the form of a tubular element 21, which is mounted on a horizontal jumper

12 in such a way that the main part of the horizontal jumper 12 is located in the longitudinal hole of the tubular element 21. And each of the two parallel brackets 10, 11 is movably axially connected to one separate independent axle shaft 26, 27 of the wheels 2,3, and the other of the end, each of the two parallel brackets 10, 11 is rigidly and perpendicularly attached to one of the edges of the tubular element 21 so that the tubular element 21 perpendicularly connects two parallel brackets 10, 11. For some use cases, the proposed trolley is characterized by the following features, developing, clarifying the totality of features of an independent claim.

 The connection of the upper arcuate lever 8 with each of the two upper hinge devices 22, 23 with the help of two short lever arms 25 is made with the possibility of pressing and fixing the gas cylinder 5 with the position of this upper arcuate lever 8 "down".

 The cart contains at least three horizontal arc parts.

 Each and two side vertical hollow posts 15, 16 is made of a pipe segment with a hollow profile of constant cross section.

 The rear part 20 of the frame 17 of the platform 1 contains fasteners 28 to the platform 1 of the additional structure 32 for transporting the welding machine and other tools and / or equipment.

 The frame 17 of the platform 1 contains fasteners 29 for additional wheels.

 Each and two side vertical hollow struts 15, 16 is additionally attached to the corresponding side parts 18, 19 of the frame 17 with angle brackets 30.

 In the upper part of each of the two side vertical hollow struts 15, 16, a valve 31 is installed for fixing and securing the upper arcuate lever 8 to the body of the gas cylinder 5.

Inventive step

 The combination of all the features of the proposed trolley, including its new features when using this trolley, ensures the achievement of a technical result, namely, it allows to increase the safety of working with gas cylinders, reduce the likelihood of injuring people when lifting and moving gas cylinders, due to the mechanization of manual work, reduce physical load on the employee when lifting (loading) the cylinders on the trolley and when removing (unloading) the cylinders from the trolley more than 10 times, reduce the time spent on human work replacement of cylinders with industrial gases during the welding process.

The presence in the design of the proposed truck of such new features as the design of a lever mechanism, which in turn contains an upper arcuate lever 8 and a lower lever 9, which are movably interconnected by two vertical rods 13, 14, in the construction of which two upper hinge devices 22, 23, each of which with each

of the corresponding side of the carriage movably interconnects the upper arcuate lever 8, the corresponding lateral hollow pillar 15, 16 and the corresponding vertical rod 13, 14, which together with the original design, mutual connection and arrangement of the two upper hinge devices 22, 23 form a movable axis "A" and the fixed axis "B", which is the fulcrum of the lever mechanism, allows convenient and efficient loading of the gas cylinder 5 onto the trolley and, as a result, reduces physical load on an employee when lifting (loading) cylinders on a trolley and when removing (unloading) cylinders from a trolley more than 10 times.

 An unexpected and unexpected effect when using the proposed trolley, due to the presence of new significant features of the claimed design, namely that: as part of the lever mechanism, the upper arcuate lever 8 is a long lever arm with respect to the short lever arm 25 in the upper hinge devices 22, 23, and the short lever arm 25 at one connection point is movably attached to the edge of one of the arches of the upper arcuate shoulder 8 and is simultaneously movably attached to the corresponding vertical 3, 14 - that is, at one point of the linkage mechanism, three movable elements of the linkage mechanism are connected to each of the two upper hinge devices 22, 23, and this “movable connection” (movable axis “A”) is simultaneously movably connected to each of two fixed support elements 24 of each of the two upper hinge devices 22, 23, and each of the two fixed support elements 24, in turn, is rigidly attached to its corresponding lateral vertical hollow post 15, 16. Thus, as part of of the crank mechanism, in its upper part two axes of the link mechanism are formed. Wherein

vertical rods 13, 14 through two axial connections of the upper hinge devices 22, 23 connect the upper arcuate lever 8 with the lower lever 9, which also contains a movable axial connection at the points of attachment of each of the two parallel brackets 10, 11 with the corresponding separate independent semi-axis 26, 27 wheels 2, 3. Due to the difference in the length of the shoulders of the upper arcuate lever 8 and the short lever arm 25 and due to the described design of the upper hinge devices 22, 23, human force, which must be applied to the upper arcs the leverage is 10 smaller, than the force that is necessary for the usual manual lifting of a gas cylinder 5 on a trolley 5 weighing from 25 kg to 150 kg, which allows 10 times to reduce the physical load on a person who performs this action when lifting cylinders on a trolley and when removing cylinders from a trolley.

 During the ascent to the trolley of a partially loaded gas cylinder 5 (whose bottom is already on the tubular element 21, but which is still on the floor, and is not raised up and not fixed on the trolley) at the beginning of movement, a person mechanically acts on the upper arcuate lever 8 downward movement (Fig. 10). This is human power, which is strengthened through the upper arcuate lever 8 (long lever arm) and through the short lever arms 25, and due to the emphasis on the stationary support elements 24 of each of the two upper hinge devices 22, 23 is transmitted to two vertical rods 13, 14, which rise up. Accordingly, at the same time, two vertical rods 13, 14 raise the lower lever 9 to the upper position, where the horizontal jumper 12 together with the tubular element 21 lifts the gas cylinder 5, moving it up along the vertical support column 4. During this lifting of the gas cylinder 5 under the influence of a human force, which is reinforced by the lever mechanism, the short lever arm 25 together with the upper arcuate lever 8 moves counterclockwise (Fig. 10) around the fixed axis "B" in the composition of the upper hinge devices 22, 23 until one position - the “dead center", which is approximately in the position where the movable axis "A" is at the highest point above the fixed axis "B" (Fig. 10). After the lever mechanism has passed this “dead point”, when the movable axis “A” is already to the left of the fixed axis “B” (Fig. 10), due to the fact that the bottom of the gas cylinder 5 is located on the tubular element 21, which in turn located on the horizontal jumper 12, the gas cylinder 5 presses downward with its weight on the tubular element 21 and on the horizontal jumper 12, which is connected to two vertical rods 13, 14, and these vertical rods 13, 14 under the gravity of the gas cylinder 5 are almost without the application of human power, coercion the upper arcuate lever 8 is moved counterclockwise (in accordance with the position of the trolley in Fig. 10.5), while raising the lower lever 9 together with the gas cylinder 5 up.

An unexpected effect in the process and as a result of the robots of the device design is also that at the end of the process of lifting the gas cylinder 5 onto the trolley, the upper arc-shaped lever 8 when moving down and counterclockwise arrows (in accordance with the position of the cart in Fig. 10.5) after passing the “dead center”, under the additional influence of the gravity of the gas cylinder 5 “reaches” to the stop - directly to the body of the gas cylinder 5, and thus the upper arcuate lever 8 presses the gas cylinder 5 to the vertical support post 4 and to two arc parts 6, 7. As a result, the upper

the arcuate lever 8 fixes the gas cylinder 5 in the tool tray, presses it and limits the free movement of the gas cylinder 5 from "falling out" of the truck.

 During the lowering of the gas cylinder 5, the initial movement of the upper arcuate lever 8 is carried out under the influence of human force. And when in the process of movement the movable axis "A" is already to the right of

fixed axis "B" (in accordance with the position of the cart in Fig. 10, Fig. 10.4), the gravity of the loaded gas cylinder 5 (as well as in the process of lifting the cylinder) almost independently acts on the lower lever 9 through the tubular element 21 and through a horizontal jumper 12, which is connected to two vertical rods 13, 14, which, under the influence of this force (almost without the application of human force) move already in the down direction, and through the upper hinge devices 22, 23 this gravity is loaded gas cylinder 5 at Uzhda move upper arcuate lever 8 upwards and clockwise (as shown in FIG. 10), lowering said lower lever 9 together with the gas bottle 5 down.

 The effective operation of the linkage mechanism is also affected by the particular arrangement of each of the vertical rods 13, 14 in the cavities (in the internal space) of the vertical side hollow posts 15, 16 (each of the two vertical rods 13, 14 is located inside, in the void of the corresponding one side vertical hollow rack 15, 16). Each of the side voids

vertical hollow struts 15, 16 has sufficient internal space, which allows each of the vertical rods 13, 14 during movement of the elements of the lever mechanism of the device to freely change its own angle

location with respect to the three axial joints of the linkage mechanism and with respect to the upper arcuate lever 8 and to the lower lever 9. This design solution is important for the most efficient

passing ((dead center) by elements of the lever mechanism during raising or lowering the gas cylinder 5. The upper ends of each of the vertical rods 13, 14 are connected at one point with a short lever arm 25 and with the edge of one of the arcs of the upper arcuate lever 8 in the upper hinge devices 22, 23. By the operating time of the lever mechanism, the upper hinge devices 22, 23 move left or right (when viewed from the side on the trolley - Fig. 10). Accordingly, the vertical rods 13, 14 also move not only vertically, but also horizontally. In particular, the horizontal movement of the vertical rods 13, 14 is carried out mainly in their upper parts together with the movement of the hinge devices 22, 23. Thus, the internal cavities (internal space) of the vertical side hollow posts 15, 16 are made in such a way and have such an internal volume that allows for effective and unlimited movement of vertical rods 13, 14 both vertically and horizontally.

 As part of the lever mechanism, an important and significant structural system is the original design of the lower lever 9, which is created from the following several elements; from a horizontal jumper 12, which at its ends is connected to two vertical 13, 14 in their lower part; of two parallel left and right brackets 10, 11, which are perpendicularly connected to the tubular element 21, which is the lower stand for the bottom of the gas cylinder 5. The tubular element 21 is mounted on a horizontal jumper 12 and these two elements together are a support for the bottom of the gas cylinder 5, which pushes it upward when loading onto the carriage, and onto which the bottom of the gas cylinder is directly mounted 5. Parallel brackets 10, 11, each of which is perpendicularly connected to the pipe from one end by an element 21, and from the other end is connected, with the possibility of movement, by axial connection with the corresponding (left, right) separate independent semi-axis 26, 27 of wheels 2, 3, which allows axially controlled upward and / or downward movement of the tubular element 21 and a horizontal jumper 12 with or without a gas cylinder 5. That is, the parallel brackets 10, 11 provide a certain direction of movement and fix the overall position of the lower lever 9 as part of the design of the linkage and as part of the entire structure of the trolley.

The structural basis of the claimed invention is platform 1. On platform 1, as on the basis of the design, all other details of the invention are mounted and attached. The platform 1 is made in the form of an original frame 17 of three parts, where two side parts 18, 19 are parallel and one rear part 20 is perpendicular to the side parts 18, 19 and connects them to each other, and to each of the side parts 18 , 19 frames 17 one separate independent semi-axis 26, 27 is attached, and a wheel 2, 3 is mounted on each semi-axis. The platform 1 is designed as a three-element frame, where instead of a possible fourth frame element, free space appears to accommodate the mechanism of the lower arm 9 and to install the bottom of the gas bottle 5, It also determines the unpredictability of the result that is achieved during the operation of the trolley.

 The original design solution of the platform 1, in conjunction with all other essential features of the invention, allows to increase the safety of working with gas cylinders and reduce the likelihood of injury to people when lifting and moving gas cylinders.

 Also, structural parts are attached to the frame 17 of the platform 1, such as: a vertical support post 4 and two lateral vertical hollow posts 15, 16 on the sides. Accordingly, the structural design of the support element for a gas cylinder 5, which is made in the form of a vertical one, is original and unforeseen support rack 4, which is rigidly connected to at least two horizontal arc parts 6, 7 in their central parts, and rigidly connected in the lower part to the rear part 20 of the frame 17 of the platform 1. In this case, two arc the hoists 6, 7 at their ends are also connected to two side vertical hollow posts 15, 16. All of these indicated and mutually combined elements of the invention: two arc parts 6, 7, a vertical support post 4 and two side vertical hollow posts 15, 16 form a lodgement for gas cylinder 5, which acts as a shaped socket for

stability of the gas cylinder 5. An unexpected technical solution is that the two side vertical hollow struts 15, 16, in addition to serving as elements of the linkage mechanism, are additionally support-forming elements of the shaped socket - the lodgement for the gas cylinder 5.

 The original design solution of the shaped socket - lodgement for a gas cylinder 5 in conjunction with all other essential

The features of the invention can improve the safety of working with gas cylinders, reduce the likelihood of injuring people when lifting (loading) and moving gas cylinders on a trolley.

The technical result is achieved precisely within the values of the number of structural elements that are indicated in the claims. The combination of all the features of the proposed trolley, including its new features, makes it possible to obtain the technical result - increase the safety of working with gas cylinders, reduce the likelihood of injuring people when lifting and moving gas cylinders, reduce the physical load on an employee when lifting cylinders on a trolley and when removing cylinders from the cart more than 10 times, to reduce the time spent on human work when replacing cylinders with industrial gases in the welding process.

 The achievement of the technical result of the invention is enhanced by the fact that in some cases, the design of the trolley, it can be made along with the following additional structural elements and features.

 Due to the design of the connection of the upper arcuate lever 8 with each of the two upper hinge devices 22, 23 using two short lever arms 25, which are made with the possibility of pressing and fixing the gas cylinder 5 with the position of this upper arcuate lever 8 "down", the upper arcuate lever 8 in the "down" position is the clamping and fixing element of the gas cylinder 5 (Fig. 4, 7, 10.5).

 The design of the trolley may contain at least three horizontal arc parts 6, 7, an increased number of which can strengthen and strengthen the shaped socket - a lodgement for a gas cylinder 5.

 Each of the two lateral vertical hollow racks 15, 16 can be made of a segment of a standard industrial pipe with a hollow profile of a constant section of standard pipes.

The rear part 20 of the frame 17 of the platform 1 may contain fastening elements 28 (Fig. 8, 9) to the platform 1 of an additional structure 32 for transporting the welding machine and other tools and / or equipment. The fastening elements 28 can be made in the form of through holes for insertion into them, for example, connecting bolts or other connecting parts. Thus, an additional platform with wheels can be attached to the main platform 1 with the help of fastening elements 28 in the form of holes and, for example, with bolts and nuts, on which other devices, equipment, etc. can be transported simultaneously with the gas cylinder 5. hours - welding machine, tools and / or equipment (Fig. 9). The frame 17 of the platform 1 may contain fasteners 29 (Fig. 8) for additional wheels, which can be additionally installed in the design of the trolley to increase the convenience of its operation.

 Each of the two side vertical hollow struts 15, 16 can be additionally attached to the corresponding side parts 18, 19 of the frame 17 with angle brackets 30 (Fig. 4, 9). Such reinforcement of the fastening of each of the two lateral vertical hollow racks 15, 16 can be used to lift and move lightweight gas cylinders.

 In the upper part of each of the two side vertical hollow struts 15, 16, a valve 31 can be installed for additional fixation and fastening of the upper arcuate lever 8 and to the body of the gas cylinder 5 (Fig. 3, 4, 7,).

Practical implementation

 Brief Description of the Drawings

 The practical implementation and industrial use of the proposed trolley for lifting and moving gas cylinders is characterized by examples of its use, images (Fig. 1, Fig. 2, Fig. 3, Fig 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 , Fig. 9, Fig. 10, including Fig. 10.1, 10.2, Fig. 10.3, Fig. 10.4, Fig. 10.5, Fig. 10.6), a description of the design of the trolley for lifting and moving gas cylinders in a static state, as well as a description of her work.

 The proposed solution is illustrated by the following graphic images - figures of drawings 1 to 10:

 FIG. 1 is a general view of the trolley from the side of the upper arc-shaped lever 8, without a loaded gas cylinder 5;

 FIG. 2 is a bottom view of a trolley with a loaded gas cylinder 5, where a platform 1 is shown, which is formed by a frame 17, the tubular element 21 is a lower stand for installing a gas cylinder 5; wheels 2, 3 with half shafts 26, 27, the design of the lower arm 9 is shown and circled by a dashed line;

 FIG. 3 is a general view of the trolley from the side of a vertical support post 4, with a loaded gas cylinder 5;

 FIG. 4 is a general view of the trolley from the side of the upper arcuate lever 8, with a loaded gas cylinder 5;

FIG. 5 - a separate image of the structural elements of the lever mechanism of the trolley; FIG. 6 is a separate image of the structural elements of the lower arm

9;

 FIG. 7 is a general view of the trolley from the side, from the side of the side vertical hollow rack 15, with a loaded gas cylinder 5;

 FIG. 8 is a bottom view of the trolley without a loaded gas cylinder 5;

FIG. 9 is a general view of a trolley with a gas cylinder 5 with an additional structure for transporting a welding machine and other tools and / or equipment;

 FIG. 10 - shows a phased scheme of the cart; each stage, the action of the operation of the cart is schematically shown in five images 10.1, 10.2, 10.3, 10.4,

10.5, which schematically shows the phased loading of the cylinder 5 on the trolley; in FIG.

10.6. shows schematic images of the phased operation of the lever mechanism of the trolley.

 Elements of the invention are indicated by the following reference

designations:

 1 - platform 1;

 2 - the first wheel;

 3 - the second wheel;

 4 - a vertical support rack;

5 - gas cylinder (not a structural element of the cart, shown to characterize the application of the invention);

 6 - the first horizontal arc part;

 7 - the second horizontal arc part;

 8 - upper arcuate lever 8;

9 - the lower lever;

 10 - the bracket of the lower arm 9, parallel with the bracket 11;

 11 - the bracket of the lower arm 9, parallel with the bracket 10;

 12 - horizontal jumper of the lower arm 9;

 13 - the first vertical thrust;

14 - second vertical thrust;

 15 - the first side vertical hollow rack;

 16 - second lateral vertical hollow rack;

17- frame 17 of the platform 1;

 18 - the first side part 18 of the frame 17;

1 - the second side part 18 of the frame 17; 20 - rear part 20 of the frame 17;

 21 - tubular element 21 - lower stand for installing a gas bottle 5;

22 - the first upper hinge device of the lever mechanism;

 23 - the second upper articulated device of the lever mechanism;

24 - fixed support element 24 of each of the two upper hinge devices 22, 23 of the lever mechanism;

 25 - a short lever arm of each of the two upper hinge devices 22, 23 of the lever mechanism;

 26 - a separate independent axis of the wheel 2;

27 - a separate independent semi-axis of the wheel 3;

 28 - fastening elements 28 to the platform 1 of an additional design 32 for transporting the welding machine and other tools and / or equipment;

29 - mounting elements 29 for additional wheels (additional wheels are not shown in the figures of the invention);

20 - angle brackets for additional mounting of two side

vertical hollow racks 15, 16 to the corresponding side parts 18, 19 of the frame 17;

 31 - valve 31 for fixing and securing the upper arcuate lever 8 to the body of the gas cylinder 5;

32 is an additional structure 32 for transporting the welding machine and other tools and / or equipment.

The best embodiment of the invention

 Description of the design of the trolley in a static state.

 The cart for lifting and moving gas cylinders contains a platform

1 with wheels 2 and 3 (Figs. 1-4, Figs. 7-8). The platform 1 is made in the form of a frame 17, which is formed of three parts of the bracket type, which are welded together at angles in the same plane. Two side parts 18, 19 of the frame 17 are parallel, and one rear part 20 of the frame 17 is perpendicular to the side parts 18, 19 of the frame 17 and connects these two side parts 18 and 19. Accordingly, the rear part 20 of the frame 17 is attached (welded) along the edges on one side to the side part 18, and on the other side to the side part 19 (Fig. 2, 3, 8). In some cases, the invention, the rear part 20 of the frame 17 of the platform 1 contains fasteners 28 to the carriage of an additional structure 32 (Fig. 3, 7, 9) for transporting the welding apparatus and other tools and / or apparatus. The fastening elements 28 can be made in the form of holes for attaching to the frame 17 of the platform 1, for example, an additional trolley on which a welding machine and other equipment, apparatus, tools can be placed (Fig. 9).

 In some cases, the invention, the frame 17 of the platform 1 contains fasteners 29 for additional wheels (Fig. 8). The fastening elements 29 for additional wheels can be made in the form of round or other holes for installing and securing additional wheels (axles or half shafts of additional wheels).

 The trolley contains two wheels 2 and 3, each of which is installed on the sides of the frame 17. To each of the side parts 18, 19 of the frame 17 is attached one separate independent semi-axis 26 and 27, respectively. Accordingly, on the half-axis 26, with the possibility of axial movement, wheel 2 is installed, and on the half-axis 27, with the possibility of axial movement, wheel 3 is installed (Figs. 1-4, 8).

 The trolley contains a support element for the gas cylinder 5. The support element for the gas cylinder 5 is made in the form of a vertical support rack 4, which in the lower part is rigidly connected to the rear part 20 of the frame 17 of the platform 1 and is additionally rigidly connected to at least two horizontal arc parts 6 , 7 in their central parts (Figs. 1, 3, 7, 8). Arc parts 6,7 are also supports for the gas cylinder 5. The arc part 6 is located at the top and attached to the top of the vertical support column 4, and the arc part 7 is located and attached closer to the middle of the vertical support column 4. The cart also contains two vertical side hollow racks 15, 16. Each of the two side vertical hollow racks 15, 16 is located at an angle to the platform 1 from the left and right sides of the trolley. The vertical hollow pillar 15 at the bottom is attached to the side part 18 of the frame 17 of the platform 1, and

the vertical hollow pillar 16 in the lower part is attached to the side part 1 of the frame 17 of the platform 1 (Fig. 1, 3, 4, 7, 8). In individual cases, embodiments of the invention, each of the two side vertical hollow racks 15, 16

additionally attached to the corresponding side parts 18, 19 of the frame 17 with angle brackets 30 (Fig. 4, 9). Each of at least two arc parts 6, 7 is also connected by its edges to two vertical side hollow posts 1, 16, and these arc parts 6, 7 together with a vertical support post 4 and together with side vertical hollow posts 15, 16 form a lodgement for a gas cylinder 5 (Figs. 1, 3, 4, 7-9). In some cases Using the invention, each of the two side vertical hollow posts 15, 16 can be made of a pipe segment, which is an industrial product and has a hollow profile of constant cross section. In figures 1 to 4, figures 7 to 9, two lateral vertical hollow posts 15, 16 with a quadrangular cross section are shown. Moreover, for the manufacture of two lateral vertical hollow racks 15, 16, pipes with different sections, for example, with a round section or with a profile section, can be used as pipe segments, but not limited to this.

 And also in some cases, the implementation of the invention, the trolley contains at least three horizontal arc parts 6, 7, but not limited to.

 The cart for lifting and moving gas cylinders contains a lever mechanism. The lever mechanism, in turn, comprises an upper arcuate lever 8 and a lower lever 9, which are movably interconnected by two for transmitting force from the upper arcuate lever 8 to the lower lever 9

vertical rods 13, 14, each of which is located in the inner cavity (in the inner space) of one of the two lateral vertical hollow racks 15, 16 (Fig. 1, 2, 3, 8). Each of the two vertical rods 13, 14 is connected to the arcs of the upper arc-shaped lever 8 from above in the left and right parts

respectively (Fig. 5). And each of the two vertical rods 1, 14 is combined with the lower lever 9 from the bottom on the left and on the right side, respectively.

 The lever mechanism of the trolley also contains two upper hinge devices 22, 23, each of which is located in the upper part of one of the two side vertical hollow racks 15, 16. The connection of each arc (left and right) of the upper arcuate lever 8 with the corresponding rod 13, 14

carried out precisely using the corresponding hinge device 22, 23, each of which also connects these elements (the upper arcuate lever 8 and the vertical rods 13,14) with the corresponding side vertical hollow struts 15, 16 (Fig. 1, 3-5, 8) . Each of the hinge devices 22, 23 is a main linkage mechanism and comprises a fixed support element 24 and a short linkage arm 25 (FIG. 5) as part of the structure. A short lever arm 25 at one connection point is movably attached to the edge of one of the arches of the upper arcuate lever 8 and is movably attached to

the corresponding rod 13, 14. The specified connection is made with the possibility of axial movement of all connected elements, and such connections of each of the two upper hinge devices 22, 23 form a movable axis "A" (Fig. 10) upper hinge devices 22, 23 of the lever mechanism. In turn, the fixed support element 24 for connecting each of the two upper hinge devices 22, 23 with its lower part is rigidly connected to the corresponding lateral vertical hollow post 15, 16, and in its upper part the fixed support element 24 is movably connected to the short lever arm 25 of the corresponding upper hinge device 22, 23, and such connections create a fixed axis "B" (Fig. 10) of the upper hinge devices 22, 23, and this fixed axis "B" is the fulcrum of the lever mechanism (Fig. 10). Moreover, in this design of the lever mechanism of the trolley, the upper arcuate lever performs the function of a long lever arm.

 In the lower part of the lever mechanism, in the area of the platform 1, there is a lower lever 9 (Fig. 2, 8), which is formed of several structural elements, namely: from a horizontal bridge 12, which perpendicularly connects two vertical rods 13 at the bottom , 14 (Fig. 5) of the lever mechanism, from two parallel left and right brackets 10, 11 and from the lower stand for installing the bottom of the gas bottle 5, which is made in the form of a tubular element 21 (Fig. 6). Each of the two parallel brackets 10, 11 is located in the left and right lower parts of the trolley, respectively, and on one side is movably connected axially

connection to one separate independent axle shaft 26, 27 wheels 2, 3

respectively, and on the other hand, each of the two parallel brackets 10, 11 is rigidly attached to one of the edges of the tubular element 21 so that the tubular element 21 perpendicularly connects two

parallel to the bracket 10, 11. In this case, the horizontal jumper 12, which rigidly connects the lower parts together, two vertical rods 13, 14 is also located perpendicular to the vertical rods 13, 14 and to two parallel brackets 10, 11, and the tubular element 21 is mounted on the horizontal jumper 12 in such a way that the main part of the horizontal jumper 12 is located in the longitudinal hole of the tubular element 21, and with its own ends that “exit” the tubular element 21, horizontal eremychka 12 is fixedly secured to the lower ends of the vertical rods 13, 14.

Thus, in the design of the trolley, a linkage mechanism is formed, the “step chain” of which can be described as follows: the upper arcuate lever 8, which is a long link arm, in two the short lever arms 25 of the two upper hinge devices 22, 23 are connected to the vertical rods 13, 14 at the point of the movable axis "A", and each of the two short lever arms 25 is connected at the point of the fixed axis "B" with

respective (one of two) fixed supporting element 24, each of which is rigidly attached and rests on the corresponding side vertical hollow rack, and then the transmission of force occurs from the upper arcuate lever 8 through the upper hinge devices 22, 23 and through the vertical rods 13, 14 to the lower arm 9 by applying a force through the vertical rods 13, 14 to the horizontal jumper 12, which under

by the action of the indicated force, it can move up or down, and due to the connection of the horizontal jumper 12 with two parallel brackets 10, 11, a certain direction of movement of the lower lever 9, its definite fixation and location in the space of the platform 1 occurs through the tubular element 21.

 The tubular element 21 is the lower stand for installing the bottom of the gas cylinder 5, and on this tubular element 21 directly install the gas cylinder 5 at the time of its loading (lifting) on the trolley (Fig. 2, Fig. 6, Fig. 8). The term "lower stand" of the trolley in this case is used as a general concept for the prototype and the present invention, and in the drawings the "lower stand" of the invention is not indicated as a separate element, but is shown in the form of a tubular element 21, which is essentially the bottom bottom support gas bottle 5.

After loading the gas cylinder 5, the upper arcuate lever 8 in the “down” position can be a pressing and fixing element for the gas cylinder 5 in the shaped socket of the cart (Fig. 4, 7). This can be done by connecting the upper arcuate lever 8 with each of the two upper hinge devices 22, 23 using two short lever arms 25, which is designed so that it becomes possible to clamp and fix the gas cylinder 5 in the position of this upper arcuate lever 8 "way down". This connection of the upper arcuate lever 8 with each of the two upper hinge devices 22, 23 with the help of two short lever arms 25 together and in the system of the entire lever mechanism of the trolley allows, under the gravity of the loaded gas cylinder 5, through the vertical rods 13, 14, through short lever shoulders 25 and through the upper hinge devices 22, 23 to transmit part of the force to the upper arcuate lever 8, which in this case, when moving “down” “latches” exactly towards the housing installed gas cylinder 5, presses and fixes it to the horizontal arc parts 6, 7 and to the vertical support column 4 on the trolley.

 In some cases, the invention in the upper part of each of the two side vertical hollow racks 15, 16 can be installed valve 31 (Fig. 3, 4, 7), with which additionally fix and secure the upper arcuate lever 8 to the body of the gas cylinder 5, after the gas cylinder 5 is mounted on the trolley.

 Description of the proposed trolley.

 The step-by-step operation of the trolley is shown schematically in Figure 10. Each step and operation of the trolley is shown schematically in five images 10.1, 10.2, 10.3, 10.4, 10.5 (Fig. 10), where the phased loading of balloon 5 onto the trolley is schematically shown. In the figure 10.6. shows schematic images of the phased operation of the lever mechanism of the trolley.

 A cart for lifting and moving gas cylinders works as follows.

 Before loading the gas cylinder 5 onto the trolley, in the initial position of the trolley design, the upper arcuate lever 8 is in the lower position (Fig. 1, Fig. YL). The movable axis "A" of the short lever arm 25 of each of the upper hinge devices 22, 23 is located below the upper "dead center" of the lever mechanism (Fig. 1, 10). In this case, the lower lever 9, in particular the horizontal jumper 12 together with the tubular element 21, is in the upper position (Fig. 10.1, Fig. 1).

 The following is a step-by-step process of loading and lifting a gas cylinder 5 onto a trolley.

 Action 1. In the initial position, which is described above, the trolley on wheels 2, 3 roll up to the closest possible distance to the gas cylinder (Fig. 10.1).

 Action JYs 2. The upper arcuate lever 8 is raised to the upper position by approximately 180 ° and, under the influence of the transmission of force from the upper arcuate lever 8, two vertical rods 13, 14 move down and lower the lower lever 9 to the lower position, while the horizontal jumper 12 together with the tubular element 21 (which is a stand for the bottom of the gas cylinder 5) "lie" on the floor (Fig. 10.2).

Action Cche 3. Gas cylinder 5 manually tilt in the opposite direction from the frame 17 of the platform 1 approximately 10 ° - 20 °, and the trolley rolled up to the gas cylinder 5 in such a way that the horizontal jumper 12 together with the tubular element 21 "comes" under the bottom of the gas cylinder 5

approximately to the middle of the bottom of the gas cylinder 5 (Fig. 10.3).

 Action JSfe 4. Gas cylinder 5 is tilted toward the trolley until the cylinder body rests on the vertical support column 4 and on two horizontal arc parts 6, 7, while rolling the bottom of the cylinder 5 through the tubular element 21 on the horizontal bridge 12 (Fig. 10.4).

 Action> Г ° 5. After preliminary loading the gas cylinder 5 onto the trolley, the upper arcuate lever 8 is lowered from the upper position to the lower position (in accordance with the position of the trolley in Fig. 10.5). Due to the difference in the shoulders of the upper arcuate lever 8, which is the long lever arm and the short lever arm 25 in the upper hinge devices 22, 23, the force that must be applied to the upper arcuate lever 8 is more than 10 times less than possible the weight of the gas cylinder 5 (which can be from 25 kg to 150 kg), which greatly facilitates and reduces the efforts of a person employee to load the gas cylinder 5 on the trolley. During the action of human force on the upper arcuate lever 8 (which is a long lever arm), this force is transmitted to the two vertical links 13, 14 through the short lever arms 25 and due to the emphasis on the stationary support elements 24 of each of the two upper hinge devices 22, 23 , which rise up, and, accordingly, simultaneously, two vertical rods 13, 14 raise the lower lever 9 to the upper position, where the horizontal bridge 12 together with the tubular element 21 raises the gas cylinder 5, moving it up along the vertical support column 4. At the end of the process of lifting the gas cylinder 5 onto the trolley, the upper arcuate lever 8 when moving down and counterclockwise (in accordance with the position of the trolley in Fig. 10.5), "reaches" to the stop - directly to the body of the gas cylinder 5 , and thus presses this gas cylinder 5 against the vertical support column 4 and two arc parts 6, 7, and as a result of this action, the upper arcuate lever 8 fixes the gas cylinder 5 in the tool tray, presses it and restricts the free movement of the gas cylinder 5 from " grazing eniya "from the trolley (FIG. 4.7, FIG. 10.5).

During the described movements, the short lever arm 25 in the design of the upper hinge devices 22, 23 passes the “dead center” approximately in the position when the movable axis “A” is located above the immovable axis “B” in the structure of the upper hinge devices 22, 23, and after passing this Dead center, when the movable axis "A" is already to the left of the fixed axis "B" (in accordance with Fig. 10), due to the design features, the relationship and the relative position of all elements of the lever mechanism, the lever mechanism in addition to human strength the gravity of the loaded gas cylinder 5, which acts on two vertical rods 13, 14 through the upper hinge devices 22, 23, also acts, and this gravity of the loaded gas cylinder 5 naturally forces the upper arcuate lever 8 p clockwise (according to

the position of the trolley shown in FIG. 10.5), while raising the lower lever 9 with the cylinder 5 up. And vice versa, during the "lowering" of the gas cylinder 5, when the upward movement of the upper arcuate lever 8 is carried out, and when the movable axis "A" is already to the right of the fixed axis "B", the gravity force of the loaded gas cylinder 5 acts on the tubular element 21 and to the horizontal jumper 12, which is connected to two vertical rods 13, 14, which, under the influence of this force (almost without the use of human force) move in a different direction, and through the upper hinge devices 22, 33 this gravity is loaded gas Llona 5 naturally

forces the upper arcuate lever 8 to move up and clockwise, while lowering the lower lever 9 with the gas cylinder 5 down.

 After loading onto the trolley, the gas cylinder 5 may be

transported to the required place.

 The lowering of the gas cylinder 5 to the surface (to the floor) is carried out in the reverse order (as indicated in "action N ° 5").

 In addition to its own purpose, a trolley for lifting and

moving gas cylinders can be used to lift and

the movement of various other cylindrical oblong objects, the weight of which ranges from 25 kg to 150 kg and above.

Industrial applicability

 The proposed trolley for lifting and moving gas cylinders has passed extensive tests in industrial and production processes, which include the process of industrial welding and transportation of gas cylinders for welding.

The test results showed that the design of the proposed trolley for lifting and moving gas cylinders allows you to increase the safety of working with gas cylinders, reduce the likelihood of injury to people when lifting and moving gas cylinders, reduce physical stress on the worker when lifting cylinders on the cart and when removing cylinders from the cart more than 10 times, reduce time costs human work when replacing cylinders with

industrial gases during the welding process.

 An example of a specific industrial implementation of the proposed invention, its use is given above as the best example of implementation.

 The proposed trolley for lifting and moving gas cylinders meets all the requirements of its operation, use and generally accepted labor safety rules.

Claims

Claim 1. A cart for lifting and moving gas cylinders, which contains a platform (1) with wheels (2, 3), a support element for a gas cylinder (5), which is connected to the platform (1), and this support element contains a shaped socket for installation and fixing the gas bottle (5), as well as the lower stand for installing the bottom of the gas bottle (5), characterized in that the platform (1) is made in the form of a frame (17) of three parts, two of which are side parts (18, 19 ) are located in parallel, and the third rear part (20) is perpendicular to the side parts (18, 19) and connects them together, and to each of the side parts (18, 19) of the frame (17) is attached one separate independent semi-axis (26, 27), respectively, and on each of their two semi-axes (26, 27) one corresponding wheel is installed (2, 3), and the support element for the gas cylinder (5) is made in the form of a vertical support column (4), which is rigidly connected to at least two horizontal arc parts (6, 7) in their central parts, and also, the vertical support column (4) is rigidly connected in the lower part to the rear part (20) of the frame (17) of the platform (1), with this, each of at least two arc parts (6, 7) is also connected by its ends to two side vertical hollow posts (15, 16), each of which is located and rigidly fixed at an angle to the platform (1) from the left and right sides trolleys, respectively, and at least two arc parts (6, 7) together with a vertical support column (4) and together with side vertical hollow columns (15, 16) form a lodgement for a gas cylinder (5), in addition, the trolley contains a lever mechanism which in turn contains an upper arcuate lever (8) and the lower arm (9), which, for the transmission of force from the upper arcuate arm (8) to the lower arm (9), are movably interconnected by two vertical rods (13, 14), each of which is respectively located in the inner cavity of one of two lateral vertical hollow struts (15, 16), while the lever mechanism also contains two upper hinge devices (22, 23), each of which is respectively located in the upper part of one of two side vertical hollow struts (15, 16) and each of the two upper hinge devices (22, 23) with each of the corresponding side of the truck movably interconnects the upper arcuate lever (8), the corresponding vertical hollow pillar (15, 16) and the corresponding vertical rod (13, 14), while each of the two upper hinge devices (22, 23) contains a fixed support element (24) a lever mechanism and a short lever arm (25), where a short lever arm (25) at one connection point is movably attached to the edge of one of the arches of the upper arcuate lever (8), which is a long lever arm, and is movably attached to the corresponding vertical traction (13, 14), and such connections of each of their two upper hinge devices (22, 23) create a movable axis (A) of the upper hinge devices (22, 23) of the lever mechanism, while the fixed support element (24) of each of the two upper articulated devices (22, 23) of its lower part is rigidly attached to the corresponding vertical hollow pillar (15, 16), and in its upper part, the fixed support element (24) is movably connected to the short lever arm (25) of the corresponding hinge device (22, 23), and such connections form a fixed axis ( B) of the upper hinge devices (22, 23), and this fixed axis (B) is the fulcrum of the lever mechanism, while the lower lever (9) of the lever mechanism is formed from a horizontal bridge (12), which rigidly and perpendicularly connects to each other in the lower parts two in vertical traction (13, 14) of the lever mechanism, from two parallel left and right brackets (10, 11) and from the lower stand for installing the bottom of the gas cylinder (5), which is made in the form of a tubular element (21), which is mounted on a horizontal the jumper (12) in such a way that the main part of the horizontal jumper (12) is located in the longitudinal hole of the tubular element (21), and each of the two parallel brackets (10, 11) is movably connected from one end by an axial connection to one separate independent semi-axis (26) , 27) track (2,3), and from the other end, each of the two parallel brackets (10, 11) is rigidly and perpendicularly attached to one of the edges of the tubular element (21) so that the tubular element (21) perpendicularly connects two parallel brackets ( 10, 11).  2. The cart under item 1, characterized in that the connection of the top the arc-shaped lever (8) with each of the two upper hinge devices (22, 23) with the help of two short lever arms (25) is made with the possibility of pressing and fixing the gas cylinder (5) with the position of this upper arc-shaped lever (8) “down”. 3. The trolley according to claim 1, characterized in that it contains at least three horizontal arc parts. 4. A trolley according to claim 1, characterized in that each and two side vertical hollow posts (15, 16) is made of a pipe segment with a hollow profile of constant cross section.  5. A trolley according to claim 1, characterized in that the rear part (20) of the frame (17) of the platform (1) contains fasteners (28) to the platform (1) of an additional structure (32) for transporting the welding machine and other tools and / or equipment.  6. A trolley according to claim 1, characterized in that the frame (17) of the platform (1) contains fastening elements (29) for additional wheels.  7. The trolley according to claim 1, characterized in that each and two side vertical hollow racks (15, 16) is additionally attached to corresponding lateral parts (18, 19) of the frame (17) with angle brackets (30).  8. A trolley according to claim 1, characterized in that a valve (31) is installed in the upper part of each of the two lateral vertical hollow posts (15, 16) to fix and secure the upper arc-shaped lever (8) to the gas cylinder body (5).