CN214365845U

CN214365845U - A reinforced ladder foot pad

Info

Publication number: CN214365845U
Application number: CN202120034977.0U
Authority: CN
Inventors: 周正存; 杜洁; 严勇健; 朱晓斌; 杨益飞; 顾苏怡; 徐永梁
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-10-08
Anticipated expiration: 2031-01-07

Abstract

The utility model provides a reinforcement type ladder callus on sole, including last backup pad, the bottom suspension fagging, it is provided with an adjusting part to go up between backup pad and the bottom suspension fagging, the four corners avris punishment of going up the backup pad do not is provided with a supporting component, supporting component supports cover and supporting screw including worker shape, worker shape supports the cover and runs through the setting in last backup pad and its both ends respectively with the top surface and the bottom surface contact of last backup pad, the central point that worker shape supported the cover puts the department and has seted up a screw through-hole along its axial, supporting screw threaded connection is in the screw through-hole, two worker shapes that lie in last backup pad homonymy support the cover and connect in order to realize rotating simultaneously through a linkage part, make the supporting screw that lies in worker shape support the cover move to leaning on the contact with the bottom suspension fagging towards the bottom suspension fagging direction. The utility model discloses a support screw of last backup pad four corners department is to the support of bottom suspension fagging for the angle adjusting part who sets up between last backup pad and the bottom suspension fagging can not rock in order to further increase stability at locking complex in-process.

Description

Reinforced ladder foot pad

Technical Field

The utility model relates to a domestic article technical field, concretely relates to reinforcement type ladder callus on sole.

Background

The ladder is a climbing tool, is the limit by two dead levers, and the middle horizontal pole that crosses suitable climbing for the climbing is used for the climbing, is the more extensive climbing tool of use among people's daily life, and along with the development of modern science and technology, the industrialization degree is higher and higher more, and the frequency of use of ladder in each individual trade improves by a wide margin.

Most ladders need adapt to different topography, if the supporting legs can only fix an angle, on uneven mud ground, the ladder is difficult steadily to be placed, often looks for polylith fragment of brick pad under the ladder foot, and fragment of brick atress area is less, and the fragment of brick of just setting up very easily slides, causes danger to also can meet above-mentioned problem when using the ladder on stair.

In the ladder foot pad provided by the ladder foot pad (publication No. CN209457859U) convenient for changing the angle, the screw rod can be rotated and stopped to adjust the relative angle between the lower support plate and the upper support plate and lock the relative position between the lower support plate and the upper support plate, but the contact mode of locking the relative positions of the upper support plate and the lower support plate in the structure is point contact and line contact, and the slipping easily occurs at the position of a locking position in the actual use process, so that the whole ladder shakes, and the ladder foot pad has great potential safety hazard.

In view of the above, there is a need for further improvement to the above structure to increase the stability of the footpad.

Disclosure of Invention

In view of this, the utility model aims at a reinforcement type ladder callus on sole, this callus on the sole have add the support component on the basis of current structure to further increase the stability between backup pad and the bottom suspension fagging.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a reinforced ladder foot pad comprises an upper supporting plate and a lower supporting plate, wherein an adjusting component for adjusting the relative angle of the upper supporting plate and the lower supporting plate is arranged between the upper supporting plate and the lower supporting plate, the four corner sides of the upper supporting plate are respectively provided with a supporting part, the supporting part comprises an I-shaped supporting sleeve and a supporting screw rod, the I-shaped support sleeve is arranged on the upper support plate in a penetrating way, and two ends of the I-shaped support sleeve are respectively contacted with the top surface and the bottom surface of the upper support plate, a threaded through hole is arranged at the central position of the I-shaped support sleeve along the axial direction of the I-shaped support sleeve, the support screw is connected in the threaded through hole on the I-shaped support sleeve in a threaded manner, the two I-shaped support sleeves positioned on the same side of the upper support plate are connected through a linkage part to realize simultaneous rotation, so that the support screw rod in the I-shaped support sleeve moves towards the direction of the lower support plate to be in abutting contact with the lower support plate.

Preferably, the two sides of the upper supporting plate are respectively and tightly connected with a locking block, the four corners and the sides of the upper supporting plate are respectively provided with a semicircular through hole in a concave manner, the locking blocks are arranged on the two sides of the upper supporting plate through screw fastening and correspond to the semicircular through holes, the positions of the semicircular through holes are symmetrically and concavely provided with the same semicircular through holes so as to form the circular through holes, and the I-shaped supporting sleeve is arranged in the circular through holes in a penetrating manner.

Preferably, a waist-shaped groove is formed in the concave joint of the upper supporting plate and the locking block, the circular through holes are formed in the two semicircular ends of the waist-shaped groove, and the linkage parts are arranged in the waist-shaped groove and are respectively connected with the middle cylinder of the I-shaped supporting sleeve.

Preferably, the linkage component is a toothed belt, teeth are uniformly arranged on the circumferential surface of the outer side of the middle cylinder of the I-shaped support sleeve, and the two I-shaped support sleeves positioned on the same side are respectively in meshed connection with the teeth on the I-shaped support sleeves through the toothed belt.

Preferably, a plurality of hollowed-out shifting grooves are uniformly arranged on the side surface of the toothed belt which is not meshed with the teeth, and a notch for shifting the toothed belt is formed in the groove wall of the waist-shaped groove on the locking block.

Preferably, a limiting block is arranged at the center of the waist-shaped groove, arc-shaped contact surfaces are concavely arranged at two ends of the limiting block towards the center direction of the limiting block corresponding to the radian of the middle cylinder of the I-shaped support sleeve, and the arc-shaped contact surfaces at two ends of the limiting block are in contact with the outer side surface of the middle cylinder of the I-shaped support sleeve.

Preferably, a linkage movable space is formed by a gap between the limiting block and the planar groove wall of the waist-shaped groove and a gap between the outer side surface of the middle cylinder of the I-shaped support sleeve and the arc-shaped groove wall of the waist-shaped groove, and the toothed belt is arranged in the linkage movable space.

Preferably, the top surface of the upper supporting plate and the bottom surface of the lower supporting plate are provided with an anti-slip cushion layer.

Compared with the prior art, the utility model provides a pair of reinforcement type ladder callus on sole, support screw through last backup pad four corners department is to the support of bottom suspension fagging for go up the angle adjusting part that sets up between backup pad and the bottom suspension fagging and can not rock at locking complex in-process, with the stability that increases the ladder callus on the sole, thereby improve the security of ladder callus on the sole in the use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic three-dimensional structure view of a reinforced ladder foot pad provided by the present invention;

FIG. 2 is an isometric view of a reinforced ladder foot pad provided by the present invention;

FIG. 3 is a front view of a reinforced ladder foot pad provided by the present invention;

FIG. 4 is a schematic cross-sectional perspective view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 4;

FIG. 6 is a top view of a reinforced ladder foot pad provided by the present invention;

FIG. 7 is a schematic cross-sectional perspective view taken along line C-C of FIG. 6;

fig. 8 is an enlarged schematic view of a portion D in fig. 7.

Reference numerals and component parts description referred to in the drawings:

1. an upper support plate; 2. a lower support plate; 3. fixing a gear; 4. a fixing plate; 5. a fixed shaft; 6. fixing the convex plate; 7. adjusting the screw rod; 8. a thumb wheel; 9. an I-shaped support sleeve; 10. a support screw; 11. a locking block; 12. a screw; 13. a waist-shaped groove; 14. a toothed belt; 15. teeth; 16. hollowing out the poking groove; 17. a notch; 18. a limiting block; 19. an anti-slip mat layer.

Detailed Description

The technical solution of the present invention will be described clearly and completely through the following detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 8, a reinforced ladder foot pad comprises an upper support plate 1 and a lower support plate 2, wherein an adjusting component for adjusting the relative angle between the upper support plate 1 and the lower support plate 2 is arranged between the upper support plate 1 and the lower support plate 2. The specific structure of the adjusting component is that a hemispherical fixed gear 3 is convexly arranged at the central position of the lower supporting plate 2, and a through hole is formed in the center of the fixed gear 3. Go up the both sides of backup pad 1 and extend perpendicularly downwards the direction of backup pad 2 respectively and have fixed plate 4, and fixed plate 4 is located the position department of through-hole and wears to be equipped with fixed axle 5, goes up between backup pad 1 and the bottom suspension fagging 2 promptly and wears to establish through the through-hole and with the fixed plate 4 fixed connection of last backup pad 1 both sides in order to realize both to rotate to be connected through fixed axle 5. The bottom surface of the upper supporting plate 1 is provided with fixed convex plates 6 corresponding to the two sides of the fixed gear 3, an adjusting screw 7 penetrates between the fixed convex plates 6, the adjusting screw 6 is meshed with the fixed gear 3, and a dial wheel 8 is fixedly arranged at one end of the adjusting screw.

When the relative included angle between the upper supporting plate 1 and the lower supporting plate 2 needs to be adjusted, only the thumb wheel 8 on the adjusting screw 7 needs to be rotated, so that the adjusting screw 7 rotates. Since the adjusting screw 7 is engaged with the fixed gear 3, when the adjusting screw 7 rotates, it can move along its axial direction relative to the fixed gear 3, and at the same time, the upper support plate 1 and the lower support plate 2 are inserted into the through hole of the fixed gear 3 through the fixing shaft 5, and the upper support plate 1 can rotate relative to the lower support plate 2 during the movement of the adjusting screw 7. When the angle is adjusted to a proper angle, the dial wheel 8 stops rotating, and the adjusting screw 7 is meshed with the fixed gear 3 to lock the upper supporting plate 1. However, in the structure, the relative position locking contact mode of the upper support plate 1 and the lower support plate 2 is point contact and line contact, and the slipping is easy to occur at the locking position in the actual use process, so that the whole ladder is shaken, and the ladder has great potential safety hazard, and therefore the support component is further added on the basis.

The supporting members are arranged at the four corner sides of the upper supporting plate 1 and comprise an I-shaped supporting sleeve 9 and a supporting screw 10. Wherein, worker's shape support cover 9 runs through the setting on last backup pad 1, and for the ease of assembling worker's shape support cover 9, the both sides of going up backup pad 1 still respectively the fastening connection have a latch segment 11, and latch segment 11 passes through the fastening of screw 12 and sets up in the both sides department of last backup pad 1, and a waist type groove 13 has been seted up to both junctions indent.

The four corners of the upper supporting plate 1, namely the parts at the bottom of the waist-shaped groove 13, are respectively provided with semicircular through holes in a concave manner, and the locking block 11 is also symmetrically provided with the same semicircular through holes in a concave manner at the positions corresponding to the semicircular through holes and the parts at the bottom of the waist-shaped groove 13 so as to form circular through holes, so that the circular through holes are arranged at the two semicircular ends of the waist-shaped groove 13. When assembling worker shape support cover 9, can lean on it earlier and lean on the semicircular through hole that is located the avris of last backup pad 1 department, later with the semicircular through hole of latch segment 11 with it with the form laminating that the semicircular through hole of last backup pad 1 avris department aimed at on worker shape support cover 9, rethread screw 12 fastening latch segment 11 and last backup pad 1 to realize worker shape support cover 9 and run through the setting in circular through hole.

In the screw through hole has been seted up along its axial to worker shape support sleeve 9's central point department, support screw 10 threaded connection supports in the screw through hole on sleeve 9 in the worker shape, and two worker shape support sleeves 9 that are located backup pad 1 homonymy are connected through a linkage part in order to realize rotating simultaneously for support screw 10 that is located worker shape support sleeve 9 moves to leaning on the contact with bottom suspension fagging 2 orientation down.

In this embodiment, the toothed belt 14 is preferably used as the linkage component, a plurality of teeth 15 are correspondingly and uniformly arranged on the outer circumferential surface of the middle column of the I-shaped support sleeve 9, and two I-shaped support sleeves 9 positioned on the same side are respectively meshed and connected with the teeth 15 through the toothed belt 14. The side surface of the toothed belt 14 not engaged with the teeth 15 is uniformly provided with a plurality of hollowed-out poking grooves 16, and the groove wall of the waist-shaped groove 13 on the locking block 11 is provided with a notch 17 for poking the hollowed-out poking grooves 16 on the toothed belt 14.

In order to prevent the I-shaped support sleeve 9 from displacing and affecting the stability of the support screw 10, a limit block 18 is arranged at the center of the waist-shaped groove 13, arc-shaped contact surfaces are concavely arranged at the two ends of the limit block 18 corresponding to the radian of the middle column of the I-shaped support sleeve 9 towards the center direction of the limit block 18, and the arc-shaped contact surfaces at the two ends of the limit block 18 are contacted with the outer side surface of the middle column of the I-shaped support sleeve 9 to abut against and support the I-shaped support sleeve 9.

The matching is that a gap between the limiting block 18 and the plane groove wall of the waist-shaped groove 13 and a gap between the outer side surface of the middle column body of the I-shaped supporting sleeve 9 and the circular arc groove wall of the waist-shaped groove 13 jointly form a linkage movable space, and the toothed belt 14 is arranged in the linkage movable space and is meshed and connected with the teeth 15 on the middle column body part of the two I-shaped supporting sleeves 9 positioned at the same side.

Further, an anti-slip pad 19 is disposed on both the top surface of the upper support plate 1 and the bottom surface of the lower support plate 2 to increase the friction between the foot pad and the bottom surface, and between the ladder foot and the foot pad, thereby preventing slipping.

When the upper support plate 1 and the lower support plate 2 are adjusted to a proper angle, the relative position between the two is locked by the adjusting assembly between the two. Then, the user uses one hand to fix the supporting screw rods 10 which are positioned on the same side and meshed and interlocked through the same toothed belt 14, and then uses the other hand to penetrate through the notches 17 to poke the hollowed poking grooves 16 on the toothed belt 14, so that the toothed belt 14 rotates, and the two I-shaped supporting sleeves 9 meshed and connected with the toothed belt also rotate simultaneously. While the I-shaped support sleeve 9 rotates, the support screw 10 screwed therein can gradually move relative to the I-shaped support sleeve 9 in the axial direction thereof toward the lower support plate 2 until the end thereof abuts against the top surface of the lower support plate 2. And then, adjusting the supporting screw rods 10 on the other side by adopting the same method, and finishing the integral adjustment of the supporting part when the four supporting screw rods 10 on the sides of the four corners of the upper supporting plate 1 are all abutted against the top surface of the lower supporting plate 2.

Above-mentioned supporting component is through setting up supporting screw 10 in 1 four corners department of last backup pad to support with the top surface of bottom suspension fagging 2, thereby make the angle adjusting part who sets up between last backup pad 1 and the bottom suspension fagging 2 can not rock at the locking complex in-process, with the stability that increases the ladder callus on the sole, thereby improve the security of ladder callus on the sole in the use.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reinforced ladder foot pad, comprising an upper support plate and a lower support plate, between the upper support plate and the lower support plate there is an adjustment assembly for adjusting the relative angle of the two, characterized in that: the upper The four corner sides of the support plate are respectively provided with a support member, the support member includes an I-shaped support sleeve and a support screw rod, the I-shaped support sleeve is arranged through the upper support plate and its two ends are respectively connected with the said I-shaped support sleeve. The top surface and the bottom surface of the upper support plate are in contact, the center position of the I-shaped support sleeve is provided with a threaded through hole along its axial direction, and the support screw is threadedly connected to the threaded through hole on the I-shaped support sleeve. In the hole, the two I-shaped support sleeves located on the same side of the upper support plate are connected by a linkage component to achieve simultaneous rotation, so that the support screw located in the I-shaped support sleeve faces the lower support plate. The direction is moved into abutting contact with the lower support plate.

2 . The reinforced ladder foot pad according to claim 1 , wherein two sides of the upper support plate are respectively fastened with a locking block, and the four corner sides of the upper support plate are respectively Semi-circular through holes are concavely provided, the locking blocks are fastened and arranged on both sides of the upper support plate by screws, and the same semi-circular through holes are symmetrically concave at positions corresponding to the semi-circular through holes. A circular through hole is formed to form a circular through hole, and the I-shaped support sleeve is arranged through the circular through hole.

3 . The reinforced ladder foot pad according to claim 2 , wherein a waist-shaped groove is recessed in the joint between the upper support plate and the locking block, and the circular through hole is provided with a waist-shaped groove. 4 . At both ends of the semicircle of the waist-shaped groove, the linkage components are arranged in the waist-shaped groove and are respectively connected with the middle cylinders of the two I-shaped support sleeves.

4. A reinforced ladder foot pad according to claim 3, characterized in that: the linkage component is a toothed belt, and teeth are evenly arranged on the outer circumferential surface of the middle cylinder of the I-shaped support sleeve, located in The two I-shaped support sleeves on the same side are respectively engaged with the teeth on the same side through the toothed belt.

5 . The reinforced ladder foot pad according to claim 4 , wherein a plurality of hollow dial slots are evenly arranged on the side of the toothed belt that is not engaged with the teeth, and the waist-shaped grooves are arranged uniformly. 6 . A notch is provided on the groove wall on the locking block for turning the toothed belt.

6 . The reinforced ladder foot pad according to claim 4 , wherein a limit block is arranged at the center of the waist-shaped groove, and both ends of the limit block correspond to the I-shaped support sleeve. 7 . The arc of the intermediate cylinder is concavely provided with arc-shaped contact surfaces toward the center of the limiting block, and the arc-shaped contact surfaces at both ends of the limiting block are in contact with the outer side surfaces of the intermediate cylinder of the I-shaped support sleeve.

7 . The reinforced ladder foot pad according to claim 6 , wherein: the space between the limit block and the flat groove wall of the waist-shaped groove and the middle of the I-shaped support sleeve. 8 . The gap between the outer surface of the cylinder and the arc-shaped groove wall of the waist-shaped groove constitutes an interlocking movement space, and the toothed belt is placed in the interlocking movement space.

8 . The reinforced ladder foot pad according to claim 3 , wherein a non-slip pad is provided on the top surface of the upper support plate and the bottom surface of the lower support plate. 9 .