CN201193764Y - Supporting device capable of adjusting lifting - Google Patents

Abstract

A supporting device with adjustable height is composed of an internal tube, an external tube, a force-fixing spring, a base and a supporting seat. The bottom of the inner tube is fixed on a base, the top of the inner tube is provided with an outer tube, the two ends of the constant force spring are respectively arranged on the top of the inner tube and the bottom of the outer tube, the supporting seat is pivoted on the top of the inner tube, and the front of the supporting seat is further connected with a supported object. The inner wall of the outer pipe is provided with an outer pipe sliding piece corresponding to the position of the inner pipe sliding piece preset on the outer wall of the inner pipe, and the outer pipe sliding piece and the inner pipe sliding piece are sleeved to form a sliding rail structure. The rebound force of the constant force spring offsets the weight of the supported object, so that the user can conveniently adjust the height of the inner pipe relative to the outer pipe. In addition, the inner tube is covered by a sleeve joint seat fixedly arranged on the base so as to shield the inner tube and form an annular gap between the inner tube and the base, and the outer tube is inserted into the gap.

Description

Adjustable lifting support device

technical field

The utility model relates to a support device, in particular to an adjustable support device.

Background technique

The displacement according to lifting is often seen in people's life at present. In a broad sense, the elevator that people take every day is also a way of lifting and lowering. In a narrow sense, for the monitors that people are exposed to every day in the workplace or at home, especially liquid crystal monitors, in order to respond to the viewing angle of each person, in addition to the adjustment of the elevation angle, the support device is gradually increased. The setting of the mechanism enables the height of the display to be adjusted for people of different body types to meet the demands of ergonomics.

Generally speaking, the elevating mechanism for the display, such as shown in the patent No. M321817 of Taiwan, China, owned by the applicant of the utility model, is to fix a pair of fixed slide rails on the two side walls of a support; and a support A pair of movable slide rails are also fixed on the two side walls of the seat, and the pair of movable slide rails are sleeved on the pair of fixed slide rails, so that the pair of movable slide rails can be displaced longitudinally along the pair of fixed slide rails to adjust the height of the display . And in order to make the display have stagnant positioning effect, therefore, a certain force spring is arranged between the bracket and the supporting seat, and in order to provide the positioning of the constant force spring, usually its curling part is accommodated in a fixed force spring on the support , and has a spring seat with an arc concave surface, and its movable end is combined with the support seat. Balance the weight of the display, the support seat and the movable slide rail by the elastic force of the constant force spring, but this is all known technology, so it is not intended to go into details here.

From the perspective of the overall structure of the aforementioned supporting device, most of its components are made of metal materials, but in recent years, the international price of metals has risen, making the manufacturing costs continue to rise, reducing profits. Therefore, how to change the overall structure of the current supporting device so that it can reduce the use of metal products and smoothly adjust the lifting function is a difficult problem that the relevant industry is eager to overcome.

Utility model content

The purpose of this utility model is to provide a support device that can be adjusted up and down, in order to overcome the lack of a substantial increase in manufacturing costs caused by the fact that most of the components of the existing support device are made of metal materials. It is hoped that through the selection of materials, and The change of space configuration reduces the manufacturing cost.

In order to achieve the above purpose, the technical means adopted by the utility model is to provide an adjustable lifting support device, which includes: an inner tube, which is a geometrically shaped elongated plastic tube body, wherein the center of the top of the empty tube groove is longitudinally arranged There is a partition, a notch is formed in the front of the partition, and a plurality of sliding parts of the inner tube are arranged longitudinally on the outer wall of the inner tube; an outer tube is a long plastic tube with an inner diameter corresponding to the outer diameter of the inner tube, and its sleeve Connected to the inner tube, and the inner wall corresponds to the positions of the inner tube sliders, and the outer tube sliders are oppositely arranged. After the outer and inner tube sliders are sleeved together, a slide rail structure is formed, so that the outer tube sliders can move along the inner tube. The sliding part of the tube slides longitudinally; at the bottom of the outer tube, at least one arc-shaped rib is arranged in the tube corresponding to the position of the partition and the notch, so that an accommodation space is formed below it; On the partition, the curled portion at the other end is accommodated in the accommodating space at the position of the notch, and leans against the arc-shaped rib so as to be driven by it.

Another technical means adopted by the utility model is to provide an adjustable lifting support device, which includes: an inner tube, which is a geometrically shaped elongated plastic tube body, and its outer wall is longitudinally provided with a plurality of inner tube sliding parts , and the opposite ends of the outer wall are respectively provided with a concave straight wall groove, the upper and lower parts of which are provided with a pair of upper and lower hooks; and an outer tube, which is a long plastic tube with an inner diameter corresponding to the outer diameter of the inner tube , which is socketed on the inner tube, and the inner wall is corresponding to the positions of the inner tube sliders to be provided with outer tube sliders. After the outer and inner tube sliders are sleeved, a slide rail structure is formed, so that the outer tube sliders can be Sliding longitudinally along the slider of the inner tube; the bottom of the outer tube corresponds to the position of the corresponding wall groove, and each is provided with a stopper. The upper and lower limit of inner tube sliding.

Another technical measure adopted by the utility model is to provide an adjustable lifting support device, which includes: an inner tube, which is a geometrically shaped elongated plastic tube body, wherein a partition is longitudinally arranged in the center of the top of the empty tube groove , a notch is formed in front of the partition, and the outer wall of the inner tube is longitudinally provided with a plurality of inner tube sliders, and an inner tip hole is opened at the top of the inner tube; an outer tube is a tube whose inner diameter corresponds to the outer diameter of the inner tube The elongated plastic pipe body is socketed on the inner pipe, and the inner wall is oppositely provided with outer pipe sliding parts corresponding to the positions of the inner pipe sliding parts. After the outer and inner pipe sliding parts are socketed, a slide rail structure is formed, so that the The sliding part of the outer tube can slide longitudinally along the sliding part of the inner tube; at least one arc-shaped rib is arranged in the bottom of the outer tube corresponding to the position of the partition and the notch, so that an accommodation space is formed below it, and the top of the outer tube corresponds to the inner tip An outer tip hole is set at the position of the hole; one end of the spring with a certain force is hooked and fixed on the partition, and the curled part at the other end is accommodated in the accommodating space at the position of the notch and leans against the arc. shaped rib, so as to be driven by it; and a positioning tip, embedded in the outer and inner tip holes of the outer and inner tubes in the folded state, to press the rebound force of the constant force spring.

In other words, the adjustable support device provided by the utility model includes:

An inner tube, which is a geometrically shaped elongated plastic tube body, wherein a partition is longitudinally arranged in the center of the top of the empty pipe groove, a notch is formed in front of the partition, and a plurality of inner tube sliding parts are longitudinally provided on the outer wall of the inner tube ;

An outer tube is an elongated plastic tube with an inner diameter corresponding to the outer diameter of the inner tube, which is sleeved on the inner tube, and the inner wall is oppositely provided with outer tube sliders corresponding to the positions of the inner tube sliders, the outer and inner tubes After the sliding parts are socketed, a slide rail structure is formed, so that the sliding part of the outer tube can slide longitudinally along the sliding part of the inner tube; at least one arc-shaped rib is arranged in the bottom of the outer tube corresponding to the position of the partition and the notch, so that it A receiving space is formed below; and

A certain force spring, one end of the hooking part is fastened and fixed to the partition, and the curling part of the other end is accommodated in the accommodating space at the position of the notch, and leans against the arc rib, so that it can be held by it. drive.

In the support device that can be adjusted up and down, the sliding part of the inner tube is a groove, and the sliding part of the outer tube is a convex rib.

In the support device that can be adjusted to lift, the sliding part of the inner tube is a convex rib, and the sliding part of the outer tube is a groove.

In the support device that can be adjusted up and down, a perforation is provided under the hooking portion of the constant force spring, through which a screw can pass and be locked to the tenon protruding in the radial direction of the partition.

The adjustable lifting support device further includes a set of sockets, which axially defines a through seat groove with a diameter larger than the outer pipe, and the seat groove is sleeved outside the inner pipe, forming a ring-shaped gap between the two. There is a gap for the outer tube to be inserted into the gap; a plurality of seat ribs protrude longitudinally from the inner wall of the seat groove, and form contact with the outer wall of the outer tube.

In the support device that can be adjusted up and down, the bottom of the inner tube is fixed on a base, and the top of the outer tube is pivotally connected to a supporting base, and the supporting base is further connected to a supported object.

The utility model also provides an adjustable lifting support device, which includes:

An inner tube is a geometrically shaped elongated plastic tube, the outer wall of which is longitudinally provided with a plurality of inner tube sliders, and the opposite ends of the outer wall are respectively provided with a concave straight wall groove, and a pair of Up and down tabs; and

An outer tube is an elongated plastic tube with an inner diameter corresponding to the outer diameter of the inner tube, which is sleeved on the inner tube, and the inner wall is oppositely provided with outer tube sliders corresponding to the positions of the inner tube sliders, the outer and inner tubes After the sliding parts are socketed, a slide rail structure is formed, so that the sliding part of the outer tube can slide longitudinally along the sliding part of the inner tube; the bottom of the outer tube corresponds to the position of the corresponding wall groove, and a stopper is provided respectively, and the pair of stoppers The piece passes over the upper hook, and the upper and lower hooks are used as the upper and lower stop limits for the outer tube to slide on the inner tube.

In the support device that can be adjusted up and down, the sliding part of the inner tube is a groove, and the sliding part of the outer tube is a convex rib.

In the support device that can be adjusted to lift, the sliding part of the inner tube is a convex rib, and the sliding part of the outer tube is a groove.

The support device that can be adjusted up and down, wherein the center of the hollow pipe groove top of the inner tube is longitudinally provided with a partition, and a notch is formed in front of it; and the bottom of the outer tube is provided with at least An arc-shaped rib forms an accommodating space below it; in addition, the hooking part at one end of the constant force spring is hooked and fixed to the partition, and the crimping part at the other end is accommodated in the accommodating space at the notch position , and lean against the arc rib so as to be driven by it.

In the support device that can be adjusted up and down, the stopper protrudes inwardly with a protrusion, which is sleeved in the opposite tube hole at the bottom of the outer tube, so that each protrusion protrudes from the inner wall of the outer tube, so that it can Move over the surface of the wall groove.

The adjustable lifting support device further includes a set of sockets, which axially defines a through seat groove with a diameter larger than the outer pipe, and the seat groove is sleeved outside the inner pipe, forming a ring-shaped gap between the two. There is a gap for the outer tube to be inserted into the gap; a plurality of seat ribs protrude longitudinally from the inner wall of the seat groove, and form contact with the outer wall of the outer tube.

In the support device that can be adjusted up and down, the bottom of the inner tube is fixed on a base, and the top of the outer tube is pivotally connected to a supporting base, and the supporting base is further connected to a supported object.

The utility model further provides an adjustable lifting support device, which includes:

An inner tube, which is a geometrically shaped elongated plastic tube body, wherein a partition is longitudinally arranged in the center of the top of the empty pipe groove, a notch is formed in front of the partition, and a plurality of inner tube sliding parts are longitudinally provided on the outer wall of the inner tube , and an inner tip hole is opened at the top of the inner tube;

An outer tube is an elongated plastic tube with an inner diameter corresponding to the outer diameter of the inner tube, which is sleeved on the inner tube, and the inner wall is oppositely provided with outer tube sliders corresponding to the positions of the inner tube sliders, the outer and inner tubes After the sliding parts are socketed, a slide rail structure is formed, so that the sliding part of the outer tube can slide longitudinally along the sliding part of the inner tube; at least one arc-shaped rib is arranged in the bottom of the outer tube corresponding to the position of the partition and the notch, so that it An accommodating space is formed below, and an outer tip hole is opened on the top of the outer tube corresponding to the position of the inner tip hole;

A certain force spring, one end of the hooking part is hooked and fixed on the partition, and the curling part of the other end is accommodated in the accommodating space at the position of the notch, and leans against the arc-shaped rib so as to be driven by it ;as well as

A positioning pin is embedded in the outer and inner tip holes of the outer and inner tubes in the folded state, so as to press the rebound force of the constant force spring.

In the support device that can be adjusted up and down, a pair of arc-shaped clamping arms extend opposite to each other on both sides of the positioning pin, which can be clamped elastically to the outer wall of the outer tube.

In the support device that can be adjusted up and down, the sliding part of the inner tube is a groove, and the sliding part of the outer tube is a convex rib.

In the support device that can be adjusted to lift, the sliding part of the inner tube is a convex rib, and the sliding part of the outer tube is a groove.

In the support device that can be adjusted up and down, a perforation is provided under the hooking portion of the constant force spring for screws to pass through and be locked to the tenons protruding in the radial direction of the partition.

The adjustable lifting support device further includes a set of sockets, which axially defines a through seat groove with a diameter larger than the outer pipe, and the seat groove is sleeved outside the inner pipe, forming a ring-shaped gap between the two. There is a gap for the outer tube to be inserted into the gap; a plurality of seat ribs protrude longitudinally from the inner wall of the seat groove, and form contact with the outer wall of the outer tube.

In the support device that can be adjusted up and down, the bottom of the inner tube is fixed on a base, and the top of the outer tube is pivotally connected to a supporting base, and the supporting base is further connected to a supported object.

Through the implementation of the utility model, the improved effect is that the outer tube, the inner tube and the socket are molded by plastic injection, which can reduce the use of metal components, and there is no need to cover the metal components with a plastic outer cover Additional processes and costs, thereby achieving the purpose of reducing manufacturing costs. Furthermore, a slide rail structure is formed by the socketing of the sliding parts of the inner and outer tubes arranged opposite to each other, so that the outer tube can slide smoothly on the inner tube. In addition, due to the change in the space configuration of the inner and outer tubes, the constant force springs are respectively combined and positioned in the accommodating space below the partition plate of the inner tube and the arc-shaped rib of the outer tube, so that the fixed force spring can be adjusted steplessly. The height of the support. Furthermore, a pair of upper and lower hooks are arranged longitudinally opposite to each other on the outer wall of the inner tube of the utility model, as a stop limit for the longitudinal sliding of the stopper corresponding to the outer tube.

Description of drawings

Fig. 1 is a perspective view of the supporting device of the present invention.

Fig. 2 is a three-dimensional exploded view of the outer tube, the inner tube and the socket of the utility model.

Fig. 3 is a three-dimensional exploded view of another perspective of the outer tube, inner tube and socket of the present invention.

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1 .

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1 .

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 4 .

Detailed ways

For further revealing the concrete technical content of the present utility model, first please refer to accompanying drawing,

As shown in Figures 1 to 3, basically, the supporting device of the present utility model is composed of an inner tube 1, an outer tube 2, a certain force spring 3, a set of sockets 4, a base 5, and a supporting seat A combination of 6.

Wherein, the bottom of the inner tube 1 is fixed on a base 5, and its top is provided for an outer tube 2 to be sleeved on. In order to pursue a beautiful appearance, the outside of the inner tube 1 is covered by a socket 4 fixed on the base 5, so that the inner tube 1 is covered, and an annular gap is formed between the two for the outer tube 2 to insert into. inserted in this gap. The supporting seat 6 is pivotally arranged on the top of the outer tube 2, and a supported object, such as a liquid crystal display, is connected to its front. The weight of the liquid crystal display is counteracted by the rebounding force of the constant force spring 3, so that the user can conveniently adjust the height of the inner tube 1 relative to the outer tube 2, so that the liquid crystal display can be vertically raised and lowered. However, the base 5 and the supporting base 6 are not the key points of the present invention, and are not intended to be described in detail here.

Please refer to Fig. 2 and Fig. 3, the creative feature of the present utility model lies in the space configuration design of the inner pipe 1 and the outer pipe 2. Wherein, the inner pipe 1 is a geometric shape, such as a circular elongated plastic pipe body, the bottom of which is fixed on the base 5, and a partition 12 is longitudinally arranged in the center of the opening of the top of the hollow pipe groove 11, and the top edge The hooking portion 31 of the constant force spring 3 is buckled and hung, and then the screw 34 passes through the perforation 32 provided by the hooking portion 31, and is locked on the tenon 121 radially protruding from the partition plate 12, so that the constant force One end of the spring 3 is fixed on the top opening of the inner tube 1 . Furthermore, an open notch 13 is formed in front of the partition 12 , which enables the constant force spring 3 to expand or retract in the notch 13 without hindrance. In addition, the outer wall of the inner tube 1 is longitudinally provided with a plurality of inner tube sliding parts 14, such as grooves, so as to facilitate the longitudinal sliding of the outer tube 2 after being socketed.

And in order to provide the stop function when the outer tube 2 is raised and lowered, a pair of upper and lower hooks 15, 16 are arranged on the upper and lower parts of the opposite ends of the outer wall of the inner tube 2, so that the stopper 24 of the outer tube 2 passes through the upper card. The wedge-shaped slope of the hook 15 can slide between the pair of hooks 15, 16, and as a stopper for up and down sliding. Wherein, the two pairs of upper and lower hooks 15 and 16 are located in the concave straight wall grooves 17 of the inner tube 1, and an inner tip hole 18 is opened at the upper end of one of the wall grooves 17 .

The outer tube 2 is an elongated plastic tube with an inner diameter corresponding to the outer diameter of the inner tube 1, the top of which is pivotally connected to a support seat 5, the bottom is sleeved on the inner tube 1, and the inner wall corresponds to each inner tube slider 14, such as a concave The slot is oppositely provided with an outer tube sliding member 21, such as a rib. When the convex rib 21 of the outer tube 2 is docked with the groove 14 of the inner tube 1 , a slide rail capable of sliding longitudinally is formed, which facilitates the longitudinal sliding of the outer tube 2 on the inner tube 1 .

As mentioned above, the inner tube and the outer tube sliders 14, 21 are grooves and ribs respectively, but it is not limited to this, and it can also be set in reverse, that is, the inner tube slider 14 is a rib, and The outer tube sliding part 21 is a groove, which can also achieve the same sliding effect.

In order to enable the outer tube 2 to drive the curled part 33 at the other end of the constant force spring 3, at least one arc-shaped rib 22 is arranged in the bottom tube corresponding to the position of the partition plate 12 and the notch 13, so that an accommodating space is formed below it for Accommodates and abuts against the curled portion 33 of the constant force spring 3 . The supported object to which the top support seat 6 of the outer tube 2 is connected, such as the weight of the liquid crystal display, is applied to the constant force spring 3, and the weight is balanced by its rebound force, so that the outer tube 2 can be adjusted steplessly on the outside. height on tube 1.

In addition, in order to provide a stopper effect, a pair of tube holes 23 are provided at the bottom of the outer tube 2 relative to the pair of upper and lower hooks 15, 16, for the inwardly protruding protrusions 241 of the two stoppers 24 to be embedded. In the corresponding tube hole 23 , each protrusion 241 protrudes into the wall groove 17 , and the pair of upper and lower hooks 15 , 16 serves as a stop limit for the outer tube 2 to slide up and down.

Further, an outer tip hole 25 is opened at the top of the outer tube 2 corresponding to the inner tip hole 18 of the inner tube 1. When the supporting seat 6 at the top of the outer tube 2 is not loaded, that is, the supported object is not connected, such as a liquid crystal display. At this time, the manufacturer can lower the outer tube 2 along the inner tube 1 first, and after making the outer tip hole 25 and the inner tip hole 18 relative, insert a positioning pin 7 into the outer and inner tip holes 25, 18 to prevent the The rebound force of the constant force spring 3 makes the stopper 24 cross the upper hook 15, and the outer tube 2 is ejected from the inner tube 1 to be damaged. Wherein, a pair of arc-shaped clamping arms 71 extend opposite to each other on both sides of the positioning pin 7, so as to be elastically clamped to the outer wall of the outer tube 2, and the prolapse of the positioning pin 7 can be avoided.

Please refer to Figures 1 to 3 again. In order to increase the overall aesthetic feeling of the support device, the utility model further includes a set of sockets 4, which are also formed of plastic materials. The bottom is fixed on the base 5, and a The hole diameter is larger than the through seat groove 41 of the outer tube 2, and the seat groove 41 wraps the inner tube 1 inside, so that an annular gap is formed between the two, and the outer tube 2 is embedded in the gap, and in order to reduce the The friction between the seat groove 41 and the outer tube 2 , a plurality of seat ribs 42 protrude longitudinally from the inner wall of the seat groove 41 to reduce the friction area with the outer tube 2 .

When the utility model is assembled, firstly, the inner pipe 1 and the outer pipe 2 are respectively combined with the base 5 and the support seat 6, and the sleeve socket 4 is fixed on the base 5, and the inner pipe 1 is covered, so that both Form an annular gap between them, then extend the bottom of the outer tube 2 into the gap, and socket the inner tube 1, so that a pair of stoppers 24 enter a pair of wall grooves 17 of the inner tube 1, and cross the wedge-shaped upper clamp Hook 15, so that the accommodation space below the arc-shaped rib 22 at the bottom of the outer tube 2 is against the curled portion 33 of the constant force spring 3, and the assembly process is completed. As shown in Fig. 1 and Fig. 4, it is the perspective view and the longitudinal section view after the support device of the present invention is assembled, the hooking portion 31 of the outer end of the constant force spring 3 is buckled and hung on the top edge of the central partition plate 12 in the pipe groove 11, The screws 34 pass through the perforated holes 32 and are locked to the tenon 121 on the partition 12 , while the other end is accommodated in the accommodating space defined by the arc-shaped rib 22 inside the outer tube 2 . When the support seat 6 above the outer tube 2 is connected to the LCD display, its weight will offset the rebound force of the constant force spring 3, and the user can easily hold the outer tube 2 in the gap between the inner tube 1 and the socket 4 Inner longitudinal lift.

Please refer to Fig. 5 and Fig. 6, which disclose the sectional view of the relative position of socket 4, outer tube 2, inner tube 1, stopper 24, upper and lower hooks 15, 16, wherein, the outer tube 2 The outer tube slider 21 is socketed with the inner tube slider 14 of the inner tube 1 to form a slide rail structure, so that the outer tube 2 can slide smoothly on the inner tube 1, and the seat groove 41 of the sleeve seat 4 The seat rib 42 is in contact with the outer wall of the outer tube 2 to reduce the friction caused when sliding. And when the protrusion 241 of the stopper 24 of the outer tube 2 moves up and touches the upper hook 15, a stop effect is formed, so that the outer tube 2 will not be separated from the inner tube 1 and come out.

What is described in this utility model is a kind of preferred embodiment. For example, all partial changes or modifications derived from the technical idea of this utility model and easily deduced by those skilled in the art will not depart from the rights of this utility model. required category.

Claims (20)

1. An adjustable lifting support device, characterized in that it comprises: An inner tube, which is a geometrically shaped elongated plastic tube body, wherein a partition is longitudinally arranged in the center of the top of the empty pipe groove, a notch is formed in front of the partition, and a plurality of inner tube sliding parts are longitudinally provided on the outer wall of the inner tube ; An outer tube is an elongated plastic tube with an inner diameter corresponding to the outer diameter of the inner tube, which is sleeved on the inner tube, and the inner wall is oppositely provided with outer tube sliders corresponding to the positions of the inner tube sliders, the outer and inner tubes After the sliding parts are socketed, a slide rail structure is formed, and the sliding part of the outer tube can slide longitudinally along the sliding part of the inner tube; at least one arc-shaped rib is arranged in the bottom of the outer tube corresponding to the position of the partition and the notch, and a rib is formed below it. a housing space; and One end of the spring with a certain force is hooked and fixed to the partition, and the curled portion at the other end is accommodated in the accommodating space at the position of the notch, and leans against the arc-shaped rib to be driven by it. 2 . The adjustable support device according to claim 1 , wherein the sliding part of the inner tube is a groove, and the sliding part of the outer tube is a rib. 3 . The adjustable support device as claimed in claim 1 , wherein the sliding part of the inner tube is a convex rib, and the sliding part of the outer tube is a groove. 4 . 4. The adjustable lifting support device according to claim 1, wherein a perforation hole is provided under the hooking part of the constant force spring for the screw to pass through, and is locked to the radially protruding plate of the partition plate. tenon. 5. The adjustable support device according to claim 1, characterized in that it further comprises a socket, which axially defines a through seat groove with a diameter larger than that of the outer tube, and the seat groove is sleeved on the inner tube In addition, an annular gap is formed between the two, and the outer tube is inserted into the gap; a plurality of seat ribs protrude longitudinally from the inner wall of the seat groove, and form contact with the outer wall of the outer tube. 6. The adjustable support device as claimed in claim 1, wherein the bottom of the inner tube is fixed on a base, and the top of the outer tube is pivotally connected to a supporting base, and the supporting base is further connected to a support. 7. An adjustable lifting support device, characterized in that it comprises: An inner tube is a geometrically shaped elongated plastic tube, the outer wall of which is longitudinally provided with a plurality of inner tube sliders, and the opposite ends of the outer wall are respectively provided with a concave straight wall groove, and a pair of Up and down tabs; and An outer tube is an elongated plastic tube with an inner diameter corresponding to the outer diameter of the inner tube, which is sleeved on the inner tube, and the inner wall is oppositely provided with outer tube sliders corresponding to the positions of the inner tube sliders, the outer and inner tubes After the sliding parts are socketed, a slide rail structure is formed. The outer tube sliding part can slide longitudinally along the inner tube sliding part; Go over the upper hooks, and use the pair of upper and lower hooks as the upper and lower stop limits for the outer tube to slide on the inner tube. 8 . The adjustable support device as claimed in claim 7 , wherein the sliding part of the inner tube is a groove, and the sliding part of the outer tube is a rib. 9 . The adjustable support device as claimed in claim 7 , wherein the sliding part of the inner tube is a convex rib, and the sliding part of the outer tube is a groove. 10. The adjustable lifting support device according to claim 7, wherein a partition plate is longitudinally arranged at the top center of the hollow pipe groove of the inner pipe, and a notch is formed in front of it; Set at least one arc-shaped rib corresponding to the position of the partition and the notch to form an accommodating space under it; the hooking part at one end of the constant force spring is hooked and fixed on the partition, and the curling part at the other end is at the position of the notch It is accommodated in the accommodating space, leans against the arc-shaped rib, and is driven by it. 11. The adjustable lifting support device according to claim 7, wherein the stopper is provided with a protruding block inwardly, which is sleeved in the opposite tube hole at the bottom of the outer tube, and each protruding block It protrudes from the inner wall of the outer tube and can move on the surface of the wall groove. 12. The adjustable lifting support device according to claim 7, characterized in that it further comprises a socket, which axially defines a through seat groove with a diameter larger than that of the outer pipe, and the seat groove is sleeved on the inner pipe In addition, an annular gap is formed between the two, and the outer tube is inserted into the gap; a plurality of seat ribs protrude longitudinally from the inner wall of the seat groove, and form contact with the outer wall of the outer tube. 13. The adjustable support device as claimed in claim 7, wherein the bottom of the inner tube is fixed on a base, and the top of the outer tube is pivotally connected to a supporting base, and the supporting base is further connected to a support. 14. An adjustable lifting support device, characterized in that it comprises: An inner tube, which is a geometrically shaped elongated plastic tube body, wherein a partition is longitudinally arranged in the center of the top of the empty pipe groove, a notch is formed in front of the partition, and a plurality of inner tube sliding parts are longitudinally provided on the outer wall of the inner tube , and an inner tip hole is opened at the top of the inner tube; An outer tube is an elongated plastic tube with an inner diameter corresponding to the outer diameter of the inner tube, which is sleeved on the inner tube, and the inner wall is oppositely provided with outer tube sliders corresponding to the positions of the inner tube sliders, the outer and inner tubes After the sliding part is socketed, a slide rail structure is formed, so that the outer tube sliding part can slide longitudinally along the inner tube sliding part; at least one arc-shaped rib is arranged in the bottom of the outer tube corresponding to the position of the partition and the notch, and the lower part An accommodating space is formed, and an outer tip hole is opened on the top of the outer tube corresponding to the position of the inner tip hole; A certain force spring, one end of the hooking part is hooked and fixed on the partition, and the curling part of the other end is accommodated in the accommodating space at the position of the notch, and leans against the arc-shaped rib so as to be driven by it ;as well as A positioning pin is embedded in the outer and inner tip holes of the outer and inner tubes in the folded state, so as to press the rebound force of the constant force spring. 15 . The adjustable support device according to claim 14 , wherein a pair of arc-shaped clamping arms extend opposite to each other on both sides of the positioning pin, and can be elastically clamped to the outer wall of the outer tube. 16 . 16 . The adjustable support device as claimed in claim 14 , wherein the sliding part of the inner tube is a groove, and the sliding part of the outer tube is a rib. 17 . The adjustable support device as claimed in claim 14 , wherein the sliding part of the inner tube is a convex rib, and the sliding part of the outer tube is a groove. 18. The adjustable support device as claimed in claim 14, characterized in that, under the hooking part of the constant force spring, there is a perforation for the screw to pass through, and it is locked to the tenon protruding in the radial direction of the partition . 19. The adjustable lifting support device according to claim 14, characterized in that it further comprises a set of sockets, which axially defines a through seat groove with a diameter larger than that of the outer pipe, and the seat groove is sleeved on the inner pipe In addition, an annular gap is formed between the two, and the outer tube is inserted into the gap; a plurality of seat ribs protrude longitudinally from the inner wall of the seat groove, and form contact with the outer wall of the outer tube. 20. The adjustable lifting support device according to claim 14, wherein the bottom of the inner tube is fixed on a base, and the top of the outer tube is pivotally connected to a supporting base, and the supporting base is further connected to a support.

Images