Bamboo joint ladder with telescopic supporting structure

Abstract

The bamboo joint ladder with the telescopic supporting structure comprises a bamboo joint ladder body, the bamboo joint ladder body comprises two symmetrically-arranged stand columns, each stand column is formed by sleeving a plurality of hollow telescopic rods, the pipe diameters of the telescopic rods are sequentially increased from top to bottom, and the upper ends of the telescopic rods are each provided with a positioning connecting sleeve; transverse linings are arranged between every two telescopic rods with the same diameter on the two stand columns through positioning connecting sleeves in a sleeving mode, one positioning connecting sleeve is rotationally connected with a rotating block, the lower end of the rotating block is connected with a supporting rod, the supporting rod is formed by sleeving a plurality of telescopic sliding frames, the widths of the telescopic sliding frames are sequentially increased from top to bottom, and the upper ends of the telescopic sliding frames are fixedly connected with mounting boxes. Positioning holes are formed in the multiple telescopic sliding frames, positioning shafts are slidably connected to the inner sides of the mounting boxes and slidably connected to the inner sides of the positioning holes, and the supporting structures are unfolded in the front-back direction of the bamboo joint ladder for supporting and can be used in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to a bamboo ladder with a telescopic supporting structure. Background Art

[0002] The utility model patent with application number: CN202320286564.0 discloses a bamboo ladder with a supporting structure, including a bamboo ladder body and two supporting structures respectively arranged on both sides of the bamboo ladder body, the bamboo ladder body includes two symmetrically arranged columns, the columns are composed of a plurality of hollow telescopic rods, the diameters of the telescopic rods increase from top to bottom, and the upper ends of the columns are each provided with a positioning connection sleeve, a mounting seat is fixed on the positioning connection sleeve, and pedals are connected between the telescopic rods of the same diameter on the two columns through the positioning connection sleeve; the supporting structure includes a supporting rod and a balancing rod; the supporting rod includes a top rod and a bottom rod, a first connecting block is fixed on one side of the top end of the top rod, the first connecting block is hinged to the mounting seat located above, and the inside of the top rod is opened There is a sliding cavity, and a plurality of sliding holes are longitudinally opened on the cavity wall at the bottom of the sliding cavity. A screw is rotatably connected in the sliding cavity and two guide rails are fixed on both sides of the screw. The outer part of the screw is sleeved with a nut seat that moves along the sliding cavity. The two ends of the nut seat are respectively slidably sleeved on the outside of the two guide rails. The bottom end of the nut seat is fixed with a plurality of extension rods corresponding to the position of the sliding holes. The bottom end of the extension rod passes through the sliding cavity through the sliding hole and is fixedly connected to the top of the bottom rod. A second connecting block is fixed on the bottom rod, and a driving structure for driving the screw to rotate is also provided on the top rod; the balance rod includes a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the second connecting block, the other end of the first connecting rod is hinged to the second connecting rod, and the other end of the second connecting rod is hinged to the mounting seat located below. The above technical scheme can adjust the length of the support rod according to the length of the bamboo ladder body. Such a setting makes the bamboo ladder body more stable when in use, and the support structure can be retracted and stored without taking up space. However, the support structure is spread to the left and right sides of the bamboo ladder for support, which is not suitable for use in narrow spaces. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and provides a bamboo ladder with a telescopic support structure. The support structure is extended in the front and rear directions of the bamboo ladder for support, and can be used in narrower spaces.

[0004] The utility model adopts a technical solution to solve the technical problem: the bamboo ladder with a telescopic support structure comprises a bamboo ladder body, the bamboo ladder body comprises two symmetrically arranged columns, the columns are formed by a plurality of hollow telescopic rods, the diameters of the plurality of telescopic rods increase in sequence from top to bottom, and a positioning connection sleeve is installed at the upper end of each column, a transverse lining is installed between the two telescopic rods with the same diameter on the two columns through the positioning connection sleeve, a rotating block is rotatably connected to one group of the positioning connection sleeves, the rotating block is arranged to rotate forward and backward, the lower end of the rotating block is fixedly connected to the support rod, the support rod is formed by a plurality of telescopic sliding frames, and the plurality of telescopic sliding frames are provided with a plurality of telescopic sliding frames. The width increases from top to bottom, and the upper ends thereof are fixedly connected with an installation box, positioning holes are opened on several telescopic sliding frames, a positioning shaft is slidably connected to the inner side of the installation box, the positioning shaft is slidably connected to the inner side of the positioning hole, the end of the positioning shaft away from the positioning hole is fixedly connected to the limiting shaft, the end of the limiting shaft away from the positioning shaft is provided with a fixed block fixedly connected to the inner side of the installation box, a spring is provided between the fixed block and the limiting shaft, the end of the limiting shaft away from the positioning shaft is fixedly connected with a connecting shaft, the connecting shaft is located on the inner side of the spring, the connecting shaft is slidably connected to the fixing block and passes through the fixing block, a guide groove is opened at the end of the connecting shaft away from the limiting shaft, and the inner side of the guide groove is slidably connected There is a guide rod, the upper end of the guide rod is inclined away from one end of the positioning shaft, the lower end of the installation box is fixedly connected to a fixed box, the upper end of the fixed box is provided with a slide groove, the guide rod is slidably connected to the inner side of the slide groove, the guide rod is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the fixed box, the lower end of the guide rod is fixedly connected to a stopper, the lower end of the stopper is provided with a push block slidably connected to the inner side of the fixed box, the lower end of the push block is fixedly connected to a connecting block, the connecting block passes through the fixed box, the rotating block is rotated backward, the rotating block drives the support rod to rotate backward, so that the support rod rotates to the specified position, and the telescopic sliding frame is pulled downward, and when the positioning shaft contacts the positioning hole, the spring drives the positioning shaft to slide through the limit shaft The push block drives the upper end of the guide rod to rotate away from the end of the positioning shaft through the rotating shaft, and the guide rod drives the connecting shaft to move away from the end of the positioning hole through the guide groove. The connecting shaft drives the positioning shaft away from the positioning hole through the limit shaft, and the support rod can be folded. The length of the support rod can be adjusted according to needs. This arrangement makes the bamboo ladder body more stable when in use, and the supporting structure can be retracted and stored without taking up space. The supporting structure is expanded in the front and rear directions of the bamboo ladder for support, and can be used in narrow spaces.

[0005] For further improvement, a plurality of positioning holes may be longitudinally provided on the telescopic sliding frames, so that the adjustment distance of the support rod is shortened and the application range is wider.

[0006] For further improvement, a plurality of positioning holes are longitudinally provided on one of the telescopic sliding frames.

[0007] To further improve, the lower end of the support rod is fixedly connected to a mounting block, the front and rear ends of the mounting block are threadedly connected to screw rods, the lower end of the screw rod is rotatably connected to a support block, the support block makes the support effect of the support rod better, the screw rod can adjust the short-distance position of the support block, ensure the support effect of the support rod, and have a wider range of applications.

[0008] For further improvement, a rubber block is fixedly connected to the lower end of the support block, and the rubber block can increase the friction between the support block and the ground, so that the support effect of the support block is better.

[0009] For further improvement, the lower end of the column is fixedly connected to a balance rod, the end of the rotating block away from the column and the left and right ends of the balance rod are fixedly connected to a first binding rope, the first binding rope is fixedly connected to a first buckle, and a through groove is opened on the mounting block, the binding rope can be placed on the inner side of the through groove, and the first buckles are clamped together, so that the support rod can be positioned on the outside of the column to prevent the support rod from rotating and extending, thereby making the storage effect of the bamboo ladder better.

[0010] For further improvement, both ends of the balance bar are rotatably connected with pads, the side surfaces of the pads are isosceles triangles, and the pads can rotate relative to the columns so that the pads can always contact the wall with the largest contact area and are not easy to slip.

[0011] For further improvement, a rubber pad is fixedly connected to the lower end of the cushion block.

[0012] As a further improvement, rollers are installed at the front end of the column to make it more convenient to carry the bamboo ladder.

[0013] For further improvement, the front and rear ends of the bottommost cross lining are fixedly connected with second binding ropes, and the end of the second binding rope away from the cross lining is fixedly connected with a second buckle. When the bamboo ladder is folded, the second binding rope can bind all the cross linings together, and the front and rear two second binding ropes are connected together through the second buckle, making the bamboo ladder more convenient to use.

[0014] For further improvement, the front end of the second binding rope at the rear end is fixedly connected with a pull rope, making it more convenient to pull the bamboo ladder.

[0015] The beneficial effect of the utility model is that: the rotating block is rotated backward, the rotating block drives the support rod to rotate backward, so that the support rod rotates to the specified position, and the telescopic sliding frame is pulled downward, and when the positioning shaft contacts the positioning hole, the spring drives the positioning shaft to slide into the inner side of the positioning hole through the limit shaft to position the telescopic sliding frame. When it needs to be folded, the connecting block is pressed upward, and the connecting block drives the pushing block to move up, and the pushing block drives the upper end of the guide rod to rotate away from one end of the positioning shaft through the rotating shaft, and the guide rod drives the connecting shaft to move away from one end of the positioning hole through the guide groove, and the connecting shaft drives the positioning shaft away from the positioning hole through the limit shaft, and the support rod can be folded. The length of the support rod can be adjusted according to needs. This arrangement makes the bamboo ladder body more stable when in use, and the supporting structure can be retracted and stored without taking up space. The supporting structure is expanded in the front and rear directions of the bamboo ladder for support, and can be used in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the support rod of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the inner side of the installation box when the push block of the utility model is at the lowest end;

[0019] Figure 4 It is a structural schematic diagram of the fixed box of the utility model.

[0020] Explanation of the accompanying drawings: 1. column; 11. balance bar; 111. cushion block; 112. rubber pad; 12. first binding rope; 121. first buckle; 13. roller; 2. positioning connecting sleeve; 21. rotating block; 22. support rod; 221. positioning hole; 23. installation box; 231. fixed block; 24. fixed box; 241. slide groove; 25. positioning shaft; 251. limiting shaft; 252. connecting shaft; 253. guide groove; 254. spring; 26. guide rod; 261. stopper; 262. rotating shaft; 27. push block; 271. connecting block; 28. installation block; 281. through groove; 29. ​​support block; 291. screw rod; 292. rubber block; 3. cross lining; 31. second binding rope; 32. second buckle; 33. pull rope. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 The utility model is further described as follows:

[0022] like Figure 1-Figure 4As shown: In this embodiment, a bamboo ladder with a telescopic support structure includes a bamboo ladder body, which includes two symmetrically arranged columns 1. The column 1 is composed of a plurality of hollow telescopic rods. The diameters of the telescopic rods increase from top to bottom, and a positioning connection sleeve 2 is installed at the upper end of each of the columns. A transverse lining 3 is installed between the two telescopic rods with the same diameter on the two columns 1 through the positioning connection sleeve 2. A rotating block 21 is rotatably connected to one group of the positioning connection sleeves 2. The lower end of the rotating block 21 is fixedly connected to a support rod 22. The support rod 22 is composed of a plurality of The telescopic sliding frames are formed by a set, the widths of the telescopic sliding frames increase from top to bottom, and the upper ends of the telescopic sliding frames are fixedly connected to the installation box 23, and the positioning holes 221 are opened on the telescopic sliding frames. The inner side of the installation box 23 is slidably connected to the positioning shaft 25, and the positioning shaft 25 is slidably connected to the inner side of the positioning hole 221. The outer side of the positioning shaft 25 is fixedly connected to the limiting shaft 251, and the inner side of the installation box 23 is fixedly connected to the fixing block 231. A spring 254 is provided between the fixing block 231 and the limiting shaft 251, and the limiting shaft 251 is fixedly connected to the end away from the positioning shaft 25. A connecting shaft 252 is connected, and the connecting shaft 252 is located inside the spring 254. The connecting shaft 252 is slidably connected to the fixed block 231 and passes through the fixed block 231. A guide groove 253 is opened at the end of the connecting shaft 252 away from the limiting shaft 251. A guide rod 26 is slidably connected to the inside of the guide groove 253. The upper end of the guide rod 26 is inclined toward the end away from the positioning shaft 25. The lower end of the installation box 23 is fixedly connected to the fixed box 24. A slide groove 241 is opened at the upper end of the fixed box 24. The guide rod 26 is slidably connected to the inside of the slide groove 241. A rotating shaft 262 is connected, and the rotating shaft 262 is rotatably connected to the fixed box 24. The lower end of the guide rod 26 is fixedly connected to a stopper 261, and the lower end of the stopper 261 is provided with a push block 27 slidably connected to the inner side of the fixed box 24. The lower end of the push block 27 is fixedly connected to a connecting block 271, and the connecting block 271 passes through the fixed box 24. The lower end of the support rod 22 is fixedly connected to a mounting block 28, and the front and rear ends of the mounting block 28 are threadedly connected with a screw 291, the lower end of the screw 291 is rotatably connected to a support block 29, and the lower end of the support block 29 is fixedly connected to a rubber block 292.

[0023] like Figure 1-Figure 2 As shown: the lower end of the column 1 is fixedly connected to the balance bar 11, the end of the rotating block 21 away from the column 1 and the left and right ends of the balance bar 11 are fixedly connected with the first binding rope 12, the first binding rope 12 is fixedly connected with the first buckle 121, the mounting block 28 is provided with a through groove 281, the binding rope can be placed on the inner side of the through groove 281, the left and right ends of the balance bar 11 are rotatably connected with the cushion block 111, the lower end of the cushion block 111 is fixedly connected with the rubber pad 112, the front end of the column 1 is installed with a roller 13, the front and rear ends of the lowest cross lining 3 are fixedly connected with the second binding rope 31, the end of the second binding rope 31 away from the cross lining 3 is fixedly connected with the second buckle 32, and the front end of the second binding rope 31 at the rear end is fixedly connected with the pull rope 33.

[0024] When the utility model is in use, the rotating block 21 is rotated backward, and the rotating block 21 drives the support rod 22 to rotate backward, so that the support rod 22 rotates to a specified position, and the telescopic slide frame is pulled downward. When the positioning shaft 25 contacts the positioning hole 221, the spring 254 drives the positioning shaft 25 to slide into the inner side of the positioning hole 221 through the limit shaft 251, and the telescopic slide frame is positioned. When it needs to be retracted, the connecting block 271 is pressed upward, and the connecting block 271 drives the push block 27 to move upward, and the push block 27 drives the upper end of the guide rod 26 to move away from the positioning through the rotating shaft 262. One end of the shaft 25 rotates, and the guide rod 26 drives the connecting shaft 252 to move away from the positioning hole 221 through the guide groove 253. The connecting shaft 252 drives the positioning shaft 25 away from the positioning hole 221 through the limiting shaft 251, so that the support rod 22 can be retracted. The length of the support rod 22 can be adjusted as needed. This arrangement makes the bamboo ladder body more stable when in use, and the supporting structure can be retracted and stored without taking up space. The supporting structure is expanded in the front and rear directions of the bamboo ladder for support, and can be used in narrower spaces.

[0025] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A bamboo ladder with a telescopic support structure, comprising a bamboo ladder body, the bamboo ladder body comprising two symmetrically arranged columns (1), the columns (1) being formed by a plurality of hollow telescopic rods, the diameters of the plurality of telescopic rods increasing from top to bottom, and each of the plurality of telescopic rods having a positioning connection sleeve (2) at its upper end, and a transverse lining (3) being provided between the two telescopic rods having the same diameter on the two columns (1) through the positioning connection sleeve (2), wherein: one set of The positioning connection sleeve (2) is rotatably connected with a rotating block (21), the lower end of the rotating block (21) is fixedly connected with a support rod (22), the support rod (22) is composed of a plurality of telescopic sliding frames, the widths of the plurality of telescopic sliding frames are increased from top to bottom, and the upper end thereof is fixedly connected with a mounting box (23), the plurality of telescopic sliding frames are provided with positioning holes (221), the inner side of the mounting box (23) is slidably connected with a positioning shaft (25), the positioning shaft (25) is slidably connected to the inner side of the positioning hole (221), the outer side of the positioning shaft (25) is fixedly connected with a limiting shaft (251), the inner side of the mounting box (23) is fixedly connected with a fixing block (231), a spring (254) is provided between the fixing block (231) and the limiting shaft (251), the limiting shaft (251) is fixedly connected with one end thereof away from the positioning shaft (25), and the connecting shaft (252) is located on the inner side of the spring (254). The connecting shaft (252) is slidably connected to the fixed block (231) and passes through the fixed block (231). The end of the connecting shaft (252) away from the limiting shaft (251) is provided with a guide groove (253). The inner side of the guide groove (253) is slidably connected with a guide rod (26). The lower end of the installation box (23) is fixedly connected with the fixed box (24). The upper end of the fixed box (24) is provided with a slide groove (241). The guide rod (26) is slidably connected to the slide groove. The guide rod (26) is fixedly connected to the inner side of the guide rod (241), and the guide rod (26) is fixedly connected to a rotating shaft (262), which is rotatably connected to the fixed box (24). The lower end of the guide rod (26) is fixedly connected to a stopper (261), and the lower end of the stopper (261) is provided with a push block (27) which is slidably connected to the inner side of the fixed box (24). The lower end of the push block (27) is fixedly connected to a connecting block (271), and the connecting block (271) passes through the fixed box (24).

2. The bamboo ladder with a telescopic support structure according to claim 1 is characterized in that: The lower end of the support rod (22) is fixedly connected to a mounting block (28), a screw rod (291) is threadedly connected to the mounting block (28), and the lower end of the screw rod (291) is rotatably connected to the support block (29).

3. The bamboo ladder with a telescopic support structure according to claim 2 is characterized in that: The lower end of the support block (29) is fixedly connected to a rubber block (292).

4. The bamboo ladder with a telescopic support structure according to claim 1 is characterized in that: The lower end of the column (1) is fixedly connected to a balance bar (11), one end of the rotating block (21) away from the column (1) and the left and right ends of the balance bar (11) are fixedly connected to a first binding rope (12), a first buckle (121) is fixedly connected to the first binding rope (12), and a through slot (281) is formed on the mounting block (28).

5. The bamboo ladder with a telescopic support structure according to claim 4 is characterized in that: The left and right ends of the balance rod (11) are both rotatably connected with cushion blocks (111).

6. The bamboo ladder with a telescopic support structure according to claim 1 is characterized in that: A roller (13) is installed at the front end of the column (1).

7. The bamboo ladder with a telescopic support structure according to claim 1 is characterized in that: The front and rear ends of the lowermost transverse lining (3) are fixedly connected to second binding ropes (31), and one end of the second binding rope (31) away from the transverse lining (3) is fixedly connected to a second buckle (32).

8. The bamboo ladder with a telescopic support structure according to claim 7 is characterized in that: The front end of the second binding rope (31) at the rear end is fixedly connected with a draw rope (33).

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