A climbing work device for narrow space

Abstract

The utility model relates to the technical field of climbing devices, and in particular to a climbing work device for narrow spaces, comprising a ladder body, first externally threaded connecting columns are fixed on both sides of the upper end of the ladder body, internally threaded correction sleeves are threadedly sleeved on the outer peripheries of the first externally threaded connecting columns, grooves are opened on the upper ends of the first externally threaded connecting columns, connecting blocks extending upward are rotatably connected in the grooves, limiting clamping components are provided on the left and right sides of the connecting blocks, and second externally threaded connecting columns are fixed on both sides of the lower end of the ladder body; the utility model is conducive to conveniently folding the ladder for use, so that it is convenient to climb in narrow places by using the climbing device, and compared with the prior art, not only can the entire ladder be conveniently folded and stored, but also there is no need to disassemble the assembled ladder into multiple sections, which reduces the operation trouble and facilitates the transfer and transportation of the ladder.

Description

Technical Field

[0001] The utility model relates to the technical field of climbing devices, in particular to a climbing operation device used in a narrow space. Background Art

[0002] Ladders are daily necessities. They are made of two long thick poles with a crossbar in the middle suitable for climbing. They are used to climb. Ladders are divided into lifting single ladders and lifting herringbone ladders. Aluminum alloy ladders are made of high-strength aluminum alloy materials. They are characterized by light weight and high strength. They greatly facilitate the work intensity of construction workers. At present, there are many manufacturers producing aluminum alloy ladders in the country, so the quality of ladders is related to personal safety.

[0003] For example, Chinese patent application No. 202220377233.3 discloses an assembled ladder, comprising: a ladder assembly, which is multi-stage, each of which comprises two parallel handrails, and a ladder rod vertically connected between the two handrails, and the handrails of two adjacent ladder assemblies can be detachably plugged into each other to form an assembled ladder. This utility model facilitates the assembly, transportation, storage and storage of assembled ladders.

[0004] By reviewing the above patents, it can be seen that the prior art still has the following deficiencies. Although most ladders can be assembled for climbing in a narrow space, the ladders are assembled by plugging them up and down. Due to the lack of connection and fixing measures, when the ladder accidentally topples over, it may cause the ladder to fall apart, so that the supporting strength is insufficient, which will affect the normal use of the ladder, and the ladder cannot be folded and stored. When the ladder is assembled at a high height, if the ladder needs to be transferred and transported, due to the high height of the ladder, the ladder often needs to be split into multiple sections, which will increase the trouble of operation. Utility Model Content

[0005] The utility model provides a climbing work device for narrow spaces, which is beneficial to ensuring the supporting strength of the ladder and is beneficial to conveniently folding and storing the ladder, thereby reducing operating troubles.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A climbing work device for narrow space comprises a ladder body, and first external threaded connecting columns are fixed on both sides of the upper end of the ladder body;

[0008] The outer periphery of the first external thread connection column is threadedly sleeved with an internal thread correction sleeve, the upper end of the first external thread connection column is provided with a groove, the groove is rotatably connected with a connection block extending upward, and the left and right sides of the connection block are provided with a limit clamping assembly;

[0009] Second externally threaded connecting columns are fixed on both sides of the lower end of the ladder body, and connecting grooves matching the connecting blocks are opened at the lower ends of the second externally threaded connecting columns. Threaded limiting rods are threadedly connected on both sides of the lower ends of the second externally threaded connecting columns.

[0010] Furthermore, the outer diameters of the first externally threaded connecting column and the second externally threaded connecting column are equal.

[0011] Furthermore, the limit clamping assembly includes a return spring and a limit clamping block, the left and right sides of the connecting block are provided with contraction grooves, the return springs are connected to the contraction grooves, and the limit clamping blocks are connected to the outer ends of the return springs.

[0012] Furthermore, the limit card blocks are slidably extended out of the contraction groove, and both ends of the inner wall of the connection groove are provided with limit card grooves matching the limit card blocks, and the upper and lower ends of the limit card blocks are inclined.

[0013] Furthermore, the limiting blocks are each provided with through holes from top to bottom, the threaded limiting rod matches the through holes, and the upper inner wall of the limiting slot is provided with a threaded limiting hole that matches the thread of the threaded limiting rod.

[0014] Furthermore, a second limiting screw hole is opened on the outer side of the first externally threaded connecting column, a first limiting screw hole is opened on the outer side of the second externally threaded connecting column, the outer thread of the internally threaded correction sleeve passes through a limiting screw, and the limiting screws are threadably matched with the first limiting screw hole and the second limiting screw hole.

[0015] Beneficial effects of the utility model:

[0016] 1. When assembling two or more ladder bodies, the connecting block is inserted into the corresponding connecting groove, and the limiting card block is inserted into the limiting card groove, so that the connecting block is conveniently pre-installed in the limiting card groove, and then the threaded limiting rod passes through the through hole, and the threaded limiting rod is threadedly connected with the threaded limiting hole, which effectively ensures the stability of the connecting block after being connected to the second external threaded connecting column, and the connection block is rotated in the connecting groove, which is convenient for folding the ladder for use, so that it is convenient to climb in narrow places through the climbing device. Compared with the prior art, not only can the entire ladder be conveniently folded and stored, but also there is no need to disassemble the assembled ladder into multiple sections, which reduces the trouble of operation, thereby facilitating the transfer and transportation of the ladder;

[0017] 2. By screwing on the internal thread correction sleeve and threading the internal thread correction sleeve onto the outer periphery of the first external thread connecting column and the second external thread connecting column adjacent to each other, when the ladder is straightened for use, it is helpful to prevent the ladder from accidentally bending, thereby effectively ensuring the supporting strength of the ladder during use, and helping to avoid the ladder from accidentally falling apart, thereby ensuring the safety of the climbing device during normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first external threaded connecting column of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second external threaded connecting column of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall assembly structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the assembly structure of the first externally threaded connecting column and the second externally threaded connecting column of the utility model;

[0023] Figure 6 It is a schematic diagram of the enlarged structure of the A part of the utility model.

[0024] Description of reference numerals:

[0025] Ladder body 1, first external threaded connecting column 2, second external threaded connecting column 3, internal threaded correction sleeve 4, groove 5, connecting block 6, connecting groove 7, contraction groove 8, limit clamping block 9, return spring 10, limit clamping groove 11, threaded limit hole 12, positioning through hole 13, threaded limit rod 14, first limit screw hole 15, limit screw 16, second limit screw hole 17. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0027] like Figure 1-6As shown, in this embodiment, it includes a ladder body 1, and first externally threaded connecting columns 2 are fixed on both sides of the upper end of the ladder body 1, and internally threaded correction sleeves 4 are threadedly sleeved on the outer periphery of the first externally threaded connecting columns 2, and grooves 5 are opened at the upper ends of the first externally threaded connecting columns 2, and connecting blocks 6 extending upward are rotatably connected in the grooves 5, and limit clamping components are provided on the left and right sides of the connecting block 6, and the limit clamping components include a return spring 10 and a limit clamping block 9, and contraction grooves 8 are opened on the left and right sides of the connecting block 6, and the return springs 10 are connected to the contraction grooves 8, and the limit clamping blocks 9 are connected to the outer ends of the return springs 10, and the limit clamping blocks 9 are slidably extended out of the contraction grooves 8, and limit clamping grooves 11 matching the limit clamping blocks 9 are opened at both ends of the inner wall of the connecting groove 7, and the upper and lower ends of the limit clamping blocks 9 are inclined.

[0028] When assembling two or more ladder bodies 1, in the process of assembling the ladders from bottom to top, first, the threaded limit rod 14 is screwed out of the limit slot 11, and then the connecting block 6 is inserted into the corresponding connecting slot 7. In this process, the notch of the connecting slot 7 will push the limit block 9 into the contraction slot 8 along the inclined surface of the limit block 9, and at the same time, the limit block 9 will compress the return spring 10 until the limit block 9 is aligned with the notch of the limit slot 11. The return force of the return spring 10 will drive the limit block 9 to be inserted into the limit slot 11, so that the connecting block 6 can be conveniently pre-installed in the limit slot 11, thereby achieving the effect of pre-installing the two ladder bodies 1 together.

[0029] like Figure 4-6 As shown, in this embodiment, second externally threaded connecting columns 3 are fixed on both sides of the lower end of the ladder body 1, and the lower ends of the second externally threaded connecting columns 3 are provided with connecting grooves 4 matching the connecting blocks 6, and both sides of the lower ends of the second externally threaded connecting columns 3 are threadedly connected with threaded limiting rods 14, and the limiting blocks 9 are each provided with through holes 13 extending therethrough from top to bottom, and the threaded limiting rods 14 are matched with the through holes 13, and the upper inner walls of the limiting grooves 11 are provided with threaded limiting holes 12 threadably matching the threaded limiting rods 14.

[0030] Then screw the threaded limit rod 14 into the limit slot 11. At this time, the threaded limit rod 14 will pass through the through hole until the threaded limit rod 14 is screwed into the threaded limit hole 12. At this time, the threaded limit rod 14 reinforces and limits the limit block 9, thereby preventing the limit block 9 from accidentally moving out of the limit slot 11 and preventing the connecting block 6 from separating from the connecting slot 7. In summary, the stability of the connecting block 6 after being connected to the second externally threaded connecting column 3 is effectively guaranteed, and the rotation of the connecting block 6 in the connecting slot 7 is conducive to conveniently folding and using the ladder, thereby facilitating climbing in narrow places through the climbing device. Compared with the prior art, not only can the entire ladder be conveniently folded and stored, but there is also no need to disassemble the assembled ladder into multiple sections, which reduces operating trouble and facilitates the transfer and transportation of the ladder.

[0031] like Figure 5 , 6 As shown, in this embodiment, the outer diameters of the first externally threaded connecting column 2 and the second externally threaded connecting column 3 are equal.

[0032] When the assembled ladder needs to be reinforced, the internal thread correction sleeve 4 is screwed on and threadedly sleeved on the outer periphery of the first external thread connecting column 2 and the second external thread connecting column 3 adjacent to each other. At this time, the connecting block 6 cannot rotate in the groove 5. Therefore, when the ladder is straightened for use, it is helpful to prevent the ladder body 1 from accidentally bending, thereby effectively ensuring the supporting strength of the ladder during use, and helping to avoid the ladder from accidentally falling apart, thereby ensuring the safety of the climbing device during normal use.

[0033] like Figure 6 As shown, in this embodiment, a second limiting screw hole 17 is opened on the outer side of the first externally threaded connecting column 2, a first limiting screw hole 15 is opened on the outer side of the second externally threaded connecting column 3, and the outer side thread of the internally threaded correction sleeve 4 passes through a limiting screw 16, and the limiting screw 16 is threadably matched with the first limiting screw hole 15 and the second limiting screw hole 17.

[0034] When the internal thread correction sleeve 4 is threadedly sleeved on the periphery of the first external thread connecting column 2 and the second external thread connecting column 3, the limiting screw 16 is tightened into the first limiting screw hole 15, which is conducive to reinforcing the installation of the internal thread correction sleeve 4 and avoiding the accidental loosening of the internal thread correction sleeve 4 on the periphery of the first external thread connecting column 2 and the second external thread connecting column 3, thereby effectively improving the firmness of the ladder body 1 after assembly and straightening for use.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A climbing work device for narrow spaces, comprising a ladder body (1), wherein first externally threaded connecting columns (2) are fixed on both sides of the upper end of the ladder body (1), characterized in that: The outer periphery of the first externally threaded connecting column (2) is threadedly sleeved with an internally threaded correcting sleeve (4), the upper end of the first externally threaded connecting column (2) is provided with a groove (5), the groove (5) is rotatably connected with a connecting block (6) extending upward, and the left and right sides of the connecting block (6) are provided with a limit clamping assembly; Second externally threaded connection columns (3) are fixed on both sides of the lower end of the ladder body (1); the lower ends of the second externally threaded connection columns (3) are provided with connection grooves (7) matching the connection blocks (6); and both sides of the lower ends of the second externally threaded connection columns (3) are threadedly connected with threaded limit rods (14).

2. A climbing work device for narrow space as claimed in claim 1, characterized in that: The first externally threaded connecting column (2) and the second externally threaded connecting column (3) have the same outer diameter.

3. The climbing work device for narrow space according to claim 1, characterized in that: The limit clamping assembly comprises a return spring (10) and a limit clamping block (9); the left and right sides of the connecting block (6) are provided with contraction grooves (8); the return spring (10) is connected to the contraction grooves (8); and the limit clamping blocks (9) are connected to the outer ends of the return springs (10).

4. A climbing work device for narrow space as claimed in claim 3, characterized in that: The limit card blocks (9) are slidably extended out of the contraction groove (8), and both ends of the inner wall of the connection groove (7) are provided with limit card grooves (11) matching the limit card blocks (9), and the upper and lower ends of the limit card blocks (9) are both inclined.

5. A climbing work device for narrow space as claimed in claim 4, characterized in that: The limit block (9) is provided with a through hole (13) extending therethrough from top to bottom, the threaded limit rod (14) matches the through hole (13), and the upper inner wall of the limit slot (11) is provided with a threaded limit hole (12) threadably matching the threaded limit rod (14).

6. The climbing device for narrow space according to claim 1, characterized in that: The first externally threaded connecting column (2) has a second limiting screw hole (17) on its outer side, the second externally threaded connecting column (3) has a first limiting screw hole (15) on its outer side, the limiting screw rod (16) is threadedly penetrated by the external thread of the internally threaded correcting sleeve (4), and the limiting screw rod (16) is threadably matched with the first limiting screw hole (15) and the second limiting screw hole (17).

Images