CN213743188U - Bamboo joint ladder with telescopic supporting structure - Google Patents

Abstract

The utility model provides a bamboo joint ladder with flexible bearing structure, including bamboo joint ladder body and the bearing structure of setting in bamboo joint ladder body both sides, bearing structure includes diagonal brace and balancing pole, the lower extreme at bamboo joint ladder body is connected in the one end rotation of balancing pole, the other end rotation of balancing pole connects the lower extreme at the diagonal brace, the upper end rotation of diagonal brace is connected in bamboo joint ladder body telescopic upper end, the diagonal brace is formed by a plurality of bracing pieces combination, adjacent two sections bracing piece cup joint the setting, and be equipped with positioning mechanism between the adjacent two sections bracing piece, the balancing pole includes head rod and second connecting rod. The utility model discloses a when bamboo joint ladder body highly risees, bearing structure expandes automatically, sets up like this and makes bamboo joint ladder body more stable when using, and bearing structure is scalable accomodate, occupation space not.

Description

Bamboo joint ladder with telescopic supporting structure

Technical Field

The utility model relates to a ladder technical field specifically is a bamboo joint ladder with flexible bearing structure.

Background

The bamboo ladder is a ladder which can be stretched and shortened like a fishing rod. It is very convenient to carry and store, and can be placed in a closet, a study room, under a bed or in a trunk of an automobile.

The utility model provides a current bamboo joint ladder, its bottom at the ladder is equipped with the bracing piece, can increase the stability of ladder like this. However, the support rod is usually fixedly connected to the ladder, the length of the support rod is fixed, the support rod cannot be automatically retracted and stored, and the support rod cannot be correspondingly changed along with the increase of the length of the bamboo joint ladder, so that when the bamboo joint ladder is used, if the height of the support rod is high, the stability of the ladder cannot be guaranteed even if the support rod is arranged.

Chinese patent with publication number CN210768570U discloses a bamboo joint ladder with flexible bearing structure, including bamboo joint ladder body and the bearing structure of setting on bamboo joint ladder body, bearing structure includes a plurality of sections telescopic bracing pieces and rotates the connecting rod of being connected with the bracing piece, the one end that the bracing piece was kept away from to the connecting rod is rotated and is connected the lower extreme that sets up at bamboo joint ladder body, the upper end at bamboo joint ladder body is connected to the bracing piece upper end, the periphery cover of bracing piece is equipped with the connecting piece, the other end of connecting rod is rotated and is connected the setting on the connecting piece, when upwards pulling out the bamboo joint ladder, the bracing piece can be along with the rising of bamboo joint ladder and automatic stretching out. The utility model discloses a bamboo joint ladder with flexible bearing structure, this bearing structure install on bamboo joint ladder, and the bracing piece is stretched out automatically in the rising of ladder height, sets up like this and makes this bamboo joint ladder more stable when using, and this bearing structure is scalable accomodate, occupation space not.

The utility model provides a technical scheme solves foretell bracing piece length fixed, can not stretch out and draw back automatically and accomodate, can not carry out corresponding change along with increasing of bamboo joint ladder length, the not enough problem of ladder stability.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art existence, the utility model discloses a for solve bracing piece length fixed, can not stretch out and draw back automatically and accomodate, can not carry out corresponding change along with increasing of bamboo joint ladder length, the not enough problem of ladder stability provides a bamboo joint ladder with flexible bearing structure.

A bamboo joint ladder with a telescopic supporting structure comprises a bamboo joint ladder body and supporting structures arranged on two sides of the bamboo joint ladder body, wherein each supporting structure comprises a diagonal brace and a balance rod, one end of each balance rod is rotatably connected to the lower end of the bamboo joint ladder body, the other end of each balance rod is rotatably connected to the lower end of each diagonal brace, the upper end of each diagonal brace is rotatably connected to the upper end of the telescopic end of the bamboo joint ladder body, each diagonal brace is formed by combining a plurality of supporting rods, each supporting rod comprises a T-shaped rod and a sleeve fixed at the bottom end of the T-shaped rod, a T-shaped through groove for the T-shaped rod to insert and slide is formed in one side, away from the T-shaped rod, of each sleeve, two adjacent sections of supporting rods are sleeved through the T-shaped rods and the T-shaped through grooves, a positioning mechanism is arranged between the two adjacent sections of supporting rods and comprises a shell and a bolt structure, and the shell is fixed on one side of each supporting rod, the cavity is formed in the shell, a slot communicated with the cavity is formed in one side of the shell, an inserting block used for being inserted into the slot is fixed on the outer wall of the other side of the shell, the bolt structure is located in the cavity and comprises a pressing block, a rotating shaft, a transmission block and a pin rod, the rotating shaft is rotatably connected into the cavity, one end of the pressing block is fixedly connected with the rotating shaft, the other end of the pressing block corresponds to the slot, one end of the transmission block is fixedly connected with the rotating shaft, the other end of the transmission block is rotatably connected with the pin rod, a limiting pipe is sleeved at the top end of the pin rod, the top end of the limiting pipe is fixedly connected with the cavity wall of the cavity, a spring is further installed in the limiting pipe, two ends of the spring are fixedly connected with the pin rod and the cavity wall of the cavity respectively, the bottom end of the pin rod penetrates out of the cavity, a first through hole corresponding to the position of the pin rod is formed in one side of the supporting rod, the balance rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the supporting rod, the other end of the first connecting rod is rotatably connected with the second connecting rod, and the other end of the second connecting rod is rotatably connected with the lower end of the bamboo ladder body.

Preferably, a connecting seat is fixed at the bottom of the shell, a clamping groove for inserting the supporting rod is formed in one side of the connecting seat, a plurality of threaded through holes are further formed in the connecting seat, threaded counter bores corresponding to the threaded through holes are formed in the supporting rod, and fastening bolts penetrate through the threaded through holes and the threaded counter bores.

Preferably, a plurality of mounting seats are arranged on the bamboo joint ladder body at equal intervals, and the balance rod and the inclined stay rod are rotatably connected with the mounting seats.

Preferably, be provided with a plurality of footboards on the bamboo joint ladder body, the both ends of footboard all are equipped with the end cover.

Preferably, the bottom end of the bamboo joint ladder body is provided with a reinforcing plate.

Preferably, the bottom end of the inclined supporting rod is sleeved with a foot pad.

Preferably, a limiting block is arranged at one end, close to the second connecting rod, of the first connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a bamboo joint ladder with flexible bearing structure, when the height of bamboo joint ladder body risees, bearing structure expandes automatically, sets up like this and makes bamboo joint ladder body more stable when using, and bearing structure is scalable accomodate, occupation space not.

Drawings

Fig. 1 is a schematic structural view of the utility model of a bamboo ladder with a telescopic support structure when unfolded;

fig. 2 is a schematic structural view of the utility model of a bamboo ladder with a telescopic support structure when it is contracted;

fig. 3 is a schematic structural view of an inclined strut of a bamboo joint ladder with a telescopic support structure according to the present invention;

fig. 4 is a schematic structural view of a support rod of the bamboo joint ladder with a telescopic support structure of the present invention;

FIG. 5 is a schematic structural view of the balance bar of the bamboo joint ladder with a telescopic support structure of the present invention

Fig. 6 is a schematic structural view of a positioning mechanism of a bamboo joint ladder with a telescopic supporting structure according to the present invention;

fig. 7 is a cross-sectional view of the positioning mechanism of the bamboo joint ladder with the telescopic supporting structure of the present invention.

Reference numerals: 1. a column; 2. positioning the connecting sleeve; 3. a mounting seat; 4. a pedal; 5. an end cap; 6. a reinforcing plate; 7. a first support bar; 8. a second support bar; 9. a third support bar; 10. a fourth support bar; 11. a fifth support bar; 12. a T-shaped rod; 13. a sleeve; 14. a T-shaped through groove; 15. a foot pad; 16. a first connecting rod; 17. a second connecting rod; 18. a limiting block; 19. a housing; 20. a connecting seat; 21. a card slot; 22. a cavity; 23. a slot; 24. inserting a block; 25. a pressing block; 26. a rotating shaft; 27. a transmission block; 28. a pin rod; 29. a limiting pipe; 30. a spring; 31. a first through hole; 32. a second through hole; 33. a first positioning mechanism; 34. a second positioning mechanism; 35. a third positioning mechanism; 36. and a fourth positioning mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

A bamboo joint ladder with a telescopic supporting structure is shown in figures 1 and 2 and comprises a bamboo joint ladder body and supporting structures arranged on two sides of the bamboo joint ladder body. The bamboo joint ladder body includes two stands 1 that the symmetry set up, stand 1 is formed by the hollow telescopic link suit of a plurality of festivals, the pipe diameter of a plurality of telescopic links from top to bottom scales up in proper order, and its upper end all is equipped with a positioning connection cover 2, be fixed with mount pad 3 on the positioning connection cover 2, be equipped with footboard 4 through positioning connection cover 2 between the two liang of telescopic links that the diameter is the same on two stands 1, both ends all are equipped with end cover 5 about footboard 4, be located equal fixedly connected with reinforcing plate 6 between lower terminal surface and the two stands 1 of footboard 4 of bottom. The two upright posts 1 are bound with a bandage (not shown in the figures), the bandage can bind the contracted support structure on one side of the upright posts 1 in a magic tape or knotting mode, and the specific structure of the bandage is not described herein. The support structure includes a diagonal brace and a balance bar.

As shown in fig. 1, fig. 3, fig. 4 and fig. 5, the diagonal brace is formed by combining five support rods, each support rod comprises a T-shaped rod 12 and a sleeve 13 fixed at the bottom end of the T-shaped rod 12, one side of the sleeve 13 deviating from the T-shaped rod 12 is provided with a T-shaped through groove 14 for the T-shaped rod 12 to insert and slide, two adjacent support rods are sleeved on the T-shaped rod 12 through the sleeve 13, the top end of the support rod at the uppermost end is rotatably connected with the mounting base 3 at the upper end, and the bottom end of the support rod at the lowermost end is sleeved with a foot pad 15. The balancing pole includes the head rod 16 and the second connecting rod 17, and the one end of head rod 16 is connected with the bracing piece that is located the lowermost end rotation, and the other end of head rod 16 is connected with the second connecting rod 17 rotation, and is close to the one end of second connecting rod 17 on the head rod 16 and is fixed with stopper 18, and the other end of second connecting rod 17 is connected with the mount pad 3 rotation that is located the lower extreme. (note that, in the description after this embodiment, for convenience of description, five support rods are sequentially denoted as a first support rod 7, a second support rod 8, a third support rod 9, a fourth support rod 10, and a fifth support rod 11 from bottom to top.)

As shown in fig. 4, 6 and 7, a positioning mechanism is arranged between two adjacent support rods, the positioning mechanism includes a housing 19 and a pin structure, a connecting seat 20 is fixed at the bottom of the housing 19, a clamping groove 21 for inserting the support rod is provided at the left side of the connecting seat 20, a plurality of thread through holes are further provided on the connecting seat 20, thread counter bores corresponding to the thread through holes are provided on the support rod, fastening bolts penetrate through the thread through holes and the thread counter bores, and the housing 19 is fixed at the right side of the support rod through the connecting seat 20 in a manner that the fastening bolts penetrate through the thread through holes and the thread counter bores. A cavity 22 is formed in the shell 19, a slot 23 communicated with the cavity 22 is formed in the left side of the shell 19, an insertion block 24 for inserting the insertion slot 23 is fixed on the outer wall of the right side of the shell 19, a pin structure is positioned in the cavity 22, the pin structure comprises a pressing block 25, a rotating shaft 26, a transmission block 27 and a pin rod 28, the rotating shaft 26 is rotatably connected in the cavity 22, one end of the pressing block 25 is fixedly connected with the rotating shaft 26, the other end of the pressing block 25 corresponds to the position of the slot 23, one end of the transmission block 27 is fixedly connected with the rotating shaft 26, the other end of the transmission block 27 is rotatably connected with the pin rod 28, the pressing block 25 is vertically arranged, the transmission block 27 is obliquely arranged, a limiting pipe 29 is sleeved at the top end of the pin rod 28, the top end of the limiting pipe 29 is fixedly connected with the top cavity wall of the cavity 22, a spring 30 is further installed in the limiting pipe 29, two ends of the spring 30 are respectively fixedly connected with the pin rod 28 and the cavity wall of the cavity 22, the bottom end of the pin rod 28 penetrates through the cavity 22, the right side of the support rod is provided with a first through hole 31 corresponding to the pin rod 28, and the left side of the support rod is provided with a second through hole 32 corresponding to the first through hole 31. (it should be noted that the fifth support rod 11 does not need to be provided with a positioning mechanism because it is rotatably connected with the mounting seat 3. in the description of the present embodiment, for convenience of description, the positioning mechanisms on the first support rod 7, the second support rod 8, the third support rod 9 and the fourth support rod 10 are sequentially referred to as a first positioning mechanism 33, a second positioning mechanism 34, a third positioning mechanism 35 and a fourth positioning mechanism 36.)

The working principle is as follows: when the bamboo ladder body is folded, a finger or a hard object penetrates into the slot 23 of the first positioning mechanism 33, the pressing block 25 in the first positioning mechanism 33 is pressed, the pressing block 25 rotates upwards, the pressing block 25 drives the rotating shaft 26 to rotate, the rotating shaft 26 drives the transmission block 27 to rotate upwards, the transmission block 27 drives the pin rod 28 to move upwards along the limiting pipe 29, the spring 30 is compressed to form downward bounce, the bottom end of the pin rod 28 is moved out of the second through hole 32 in the second support rod 8 and the first through hole 31 in the first support rod 7, the first support rod 7 can move along the T-shaped rod 12 in the second support rod 8, and the first support rod 7 moves to drive the first connecting rod 16 and the second connecting rod 17 to be folded in a rotating mode. When the insert block 24 on the first positioning mechanism 33 is inserted into the slot 23 on the second positioning mechanism 34, similarly, the second positioning mechanism 34 is loosened, the second support rod 8 can move along the T-shaped rod 12 on the third support rod 9, and so on, and finally, the first support rod 7 is sleeved on the first support rod 7, the second support rod 8 is sleeved on the third support rod 9, the third support rod 9 is sleeved on the fourth support rod 10, the fourth support rod 10 is sleeved on the fifth support rod 11, so as to complete the contraction of the diagonal brace, and the first connecting rod 16 and the second connecting rod 17 are positioned between the diagonal brace and the upright post 1 after being rotated and folded, so as to complete the contraction of the whole support structure. And finally, binding the contracted diagonal brace on the upright post 1 through a binding band.

When the bamboo joint ladder body needs to be unfolded, loosen the bandage first, upwards stimulate the telescopic link, the telescopic link drives the positioning connecting sleeve 2 upward movement that is located above it, positioning connecting sleeve 2 drives mount pad 3 upward movement that is located above it, mount pad 3 drives fifth bracing piece 11 upward movement, T type pole 12 on the fifth bracing piece 11 is taken out from sleeve pipe 13 of fourth bracing piece 10, when second through-hole 32 on the fifth bracing piece 11 corresponds with first through-hole 31 position on the fourth bracing piece 10, pin 28 wears out cavity 22 and wears to penetrate in proper order in this first through-hole 31 and second through-hole 32 under the effect of spring 30 elasticity, thereby realize the fixed of fourth bracing piece 10 and fifth bracing piece. Similarly, with the continuous rising of the bamboo ladder body, the fourth support rod 10 is drawn out from the sleeve 13 of the third support rod 9, and is fixed through the pin 28 on the fourth support rod, so that the whole inclined support rod can be automatically unfolded by analogy. And then the inclined angle of the inclined stay bar is adjusted by rotation to drive the first connecting rod 16 and the second connecting rod 17 to rotate, so that the balance bar is unfolded, when the balance bar is completely unfolded, the first connecting rod 16 and the second connecting rod 17 form an angle of 180 degrees, and the limiting block 18 is used for preventing the first connecting rod 16 and the second connecting rod 17 from being continuously rotated and opened, so that the positioning between the first connecting rod 16 and the second connecting rod 17 is completed.

The present embodiment can also connect the fifth support bar 11 with the mounting seats 3 with different heights according to actual use conditions.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a bamboo joint ladder with flexible bearing structure, includes bamboo joint ladder body and sets up the bearing structure in bamboo joint ladder body both sides, bearing structure includes diagonal brace and balancing pole, the one end of balancing pole is rotated and is connected the lower extreme at bamboo joint ladder body, the other end of balancing pole is rotated and is connected the lower extreme at the diagonal brace, the upper end of diagonal brace is rotated and is connected in bamboo joint ladder body telescopic upper end, its characterized in that: the inclined supporting rods are formed by combining a plurality of supporting rods, each supporting rod comprises a T-shaped rod (12) and a sleeve (13) fixed at the bottom end of the T-shaped rod (12), a T-shaped through groove (14) allowing the T-shaped rod (12) to be inserted and slide is formed in one side, away from the T-shaped rod (12), of each sleeve (13), two adjacent sections of supporting rods are sleeved through the T-shaped rods (12) and the T-shaped through grooves (14), a positioning mechanism is arranged between two adjacent sections of supporting rods and comprises a shell (19) and a plug pin structure, the shell (19) is fixed on one side of each supporting rod, a cavity (22) is formed in the shell (19), a slot (23) communicated with the cavity (22) is formed in one side of the shell (19), a plug block (24) used for being inserted into the slot (23) is fixed on the outer wall of the other side of the shell (19), and the plug pin structure is located in the cavity (22), the bolt structure comprises a pressing block (25), a rotating shaft (26), a transmission block (27) and a pin rod (28), wherein the rotating shaft (26) is rotatably connected inside the cavity (22), one end of the pressing block (25) is fixedly connected with the rotating shaft (26), the other end of the pressing block (25) corresponds to the position of the slot (23), one end of the transmission block (27) is fixedly connected with the rotating shaft (26), the other end of the transmission block (27) is rotatably connected with the pin rod (28), a limiting pipe (29) is sleeved at the top end of the pin rod (28), the top end of the limiting pipe (29) is fixedly connected with the cavity wall of the cavity (22), a spring (30) is further installed in the limiting pipe (29), two ends of the spring (30) are respectively fixedly connected with the pin rod (28) and the cavity wall of the cavity (22), and the bottom end of the pin rod (28) penetrates out of the cavity (22), first through-hole (31) that correspond with pin rod (28) position are seted up to one side of bracing piece, second through-hole (32) that correspond with first through-hole (31) position are seted up to the opposite side of bracing piece, the balancing pole includes head rod (16) and second connecting rod (17), the one end and the bracing piece of head rod (16) rotate to be connected, the other end and the second connecting rod (17) of head rod (16) rotate to be connected, the other end and the lower extreme of bamboo joint ladder body of second connecting rod (17) rotate to be connected.

2. The bamboo joint ladder with the telescopic supporting structure as claimed in claim 1, wherein: the bottom of the shell (19) is fixed with a connecting seat (20), one side of the connecting seat (20) is provided with a clamping groove (21) for inserting the supporting rod, the connecting seat (20) is further provided with a plurality of threaded through holes, the supporting rod is provided with threaded counter bores corresponding to the threaded through holes, and fastening bolts penetrate through the threaded through holes and the threaded counter bores.

3. The bamboo joint ladder with the telescopic supporting structure as claimed in claim 1, wherein: a plurality of mounting seats (3) are arranged on the bamboo joint ladder body at equal intervals, and the balance rod and the inclined stay rod are rotatably connected with the mounting seats (3).

4. The bamboo joint ladder with the telescopic supporting structure as claimed in claim 1, wherein: the bamboo joint ladder is characterized in that a plurality of pedals (4) are arranged on the bamboo joint ladder body, and end covers (5) are sleeved at two ends of each pedal (4).

5. The bamboo joint ladder with the telescopic supporting structure as claimed in claim 1, wherein: the bottom of the bamboo joint ladder body is provided with a reinforcing plate (6).

6. The bamboo joint ladder with the telescopic supporting structure as claimed in claim 1, wherein: the bottom end of the inclined supporting rod is sleeved with a foot pad (15).

7. The bamboo joint ladder with the telescopic supporting structure as claimed in claim 1, wherein: and a limiting block (18) is arranged at one end of the first connecting rod (16) close to the second connecting rod (17).

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