Crane walking board handrail

Abstract

The utility model discloses a crane walking board handrail, and relates to the technical field of crane walking board handrails. The guardrail comprises a stand column, adjusting assemblies are arranged on the left side and the right side of the stand column, the two adjusting assemblies are symmetrically arranged with the stand column as the center, parts contained in the two adjusting assemblies are the same, each adjusting assembly comprises an adjusting rod, a handrail is connected to the left side of each adjusting rod in an inserted mode, and a cavity is formed in the stand column. By arranging the push block, specifically, the clamping block on the handrail is inserted into one stand column, then the clamping block on the fine adjustment rod is inserted into the other stand column, operation is convenient, continuous supporting by workers is not needed, after connection is completed, the rotating handle is rotated clockwise to drive the second threaded rod to rotate, and then the connecting cylinder drives the push block to move downwards to extrude the clamping block; the clamping blocks are tightly attached to the inner wall of the stand column, the handrail can be fixed to complete installation, the installation efficiency is higher, and the handrail needing to be disassembled can be conveniently disassembled and replaced by reversely rotating the rotating handle.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, in particular to a crane platform railing. Background Art

[0002] Crane railings are a type of protective mechanism for crane platforms and walkways. For lifting equipment used in high-altitude operations, when installing crane electrical equipment and sliding lines, or during inspection and maintenance, protective railings are set on the edges of platforms and walkways to protect operators.

[0003] Existing platform railings are usually fixed by welding or bolts during installation. This method not only requires continuous support from workers during installation, increases the labor of workers, is not suitable for single-person operation, and affects work efficiency. When the platform railing is damaged such as bending or breaking, it is not easy for workers to disassemble and replace it because it is welded or fixed with bolts. Therefore, we propose a crane platform railing. Utility Model Content

[0004] The purpose of the utility model is to provide a crane platform railing, which is provided with a push block, specifically, a block on the railing is inserted into the inside of a column, and then the block on the fine-tuning rod is inserted into the inside of another column. The operation is convenient and does not require continuous support from the staff. After the connection is completed, the handle is turned clockwise to make the push block squeeze the block, so that the block and the inner wall of the column are tightly attached to complete the installation. The handle is turned in the opposite direction to facilitate the removal and replacement of the railing that needs to be removed, which solves the problem that the existing railing is difficult to install and requires continuous support from the staff, and when it needs to be replaced, it is difficult for the staff to remove and replace it because it is welded or fixed with bolts.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a crane platform railing, comprising a column, wherein the left and right sides of the column are both provided with adjustment components, the two adjustment components are symmetrically arranged with the column as the center, the parts contained in the two adjustment components are the same, the adjustment component comprises an adjustment rod, and the left side of the adjustment rod is plugged with a railing;

[0007] A cavity is provided inside the column, and three push blocks are slidably connected to the inner wall of the cavity. The three push blocks are arranged in a vertical array, and the three push blocks are connected to each other by a connecting rod. The top of the push block located at the top is fixedly connected with a connecting tube, and the inner wall of the connecting tube is fixedly connected with a threaded ring, and the inner wall of the threaded ring is threadedly connected with a threaded rod 2, and the top of the threaded rod 2 is fixedly connected with a turning handle. By setting the push block, specifically, the block on the railing is inserted into the interior of the column, and then the block on the fine-tuning rod is inserted into the interior of another column. The operation is convenient and does not require continuous support from the staff. After the connection is completed, the turning handle is rotated clockwise so that the push block squeezes the block, so that the block is tightly attached to the inner wall of the column to complete the installation. Rotating the turning handle in the opposite direction facilitates the removal and replacement of the railing that needs to be removed.

[0008] Furthermore, a fine-tuning rod is provided on the right side of the adjusting rod, and blocks are fixedly connected to the left side and the right side of the fine-tuning rod. A plurality of positioning holes are provided on the top of the railing, and a threaded rod 1 is fixedly connected to the right side of the adjusting rod. By setting an adjustment component, specifically, the insert rod is pulled to release the fixation of the adjusting rod, and then the adjusting rod is pulled to adjust the required length. After the adjustment is completed, the insert rod is released to fine-tune the adjusting rod so that the insert rod can be smoothly inserted into the positioning hole, and then the fine-tuning rod is rotated to move it on the threaded rod 1, thereby adjusting the position of the block on the fine-tuning rod to facilitate insertion into another column. It can be suitable for different distances between two columns, making the docking more precise.

[0009] Furthermore, the front and back sides of the inner wall of the adjusting rod are fixedly connected to the limiting blocks, the front and back sides of the railing are provided with limiting grooves, the inner walls of the limiting grooves are in contact with the outer surfaces of the limiting blocks, and the top of the adjusting rod is fixedly connected to the fixing block. When the adjusting rod moves, it will slide on the limiting block, so that the adjusting rod will move in a straight line to the left, and it can ensure that the inserted rod will not be offset, so that it can be smoothly plugged into the positioning hole.

[0010] Furthermore, a sliding groove is opened inside the fixed block, and an insertion rod is slidably connected to the inner wall of the sliding groove. A limiting ring is fixedly connected to the outer surface of the insertion rod. A spring is fixedly connected to the top of the limiting ring. The top of the spring is fixedly connected to the top of the inner wall of the sliding groove. The limiting ring is used to limit the insertion rod and facilitate the squeezing of the spring.

[0011] Furthermore, the outer surface of the push block contacts the inner wall of the cavity opened inside the column, and a plurality of slots are opened on the left and right sides of the column, and the slots are adapted to the blocks. The top of the second threaded rod passes through the column and extends to the outside. The second threaded rod is rotatably connected to the column, and the side of the block close to the push block is arranged with an inclined surface. The railing is slidably connected to the adjustment rod, and a threaded groove is opened on the left side of the fine-tuning rod. The threaded rod rotates in situ on the column, thereby smoothly driving the connecting tube to move upward or downward, and the push block can play a limiting role, so that the connecting tube can move in a straight line.

[0012] Furthermore, an outer surface of the threaded rod is threadedly connected to a thread groove provided on the left side of the fine-tuning rod, the insertion rod is adapted to the positioning hole, the bottom of the insertion rod passes through the adjusting rod and extends to the inside, the insertion rod is slidingly connected to the adjusting rod, the outer surface of the limiting ring contacts the inner wall of the slide groove, the top of the insertion rod passes through the fixing block and extends to the outside, the bottom of the limiting ring contacts the bottom of the inner wall of the slide groove, when the insertion rod enters the positioning hole, the adjusting rod will be fixed, and when the insertion rod leaves the positioning hole, the fixing of the adjusting rod will be released, and the adjusting rod can be pulled to adjust the position.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a push block, specifically, inserts the block on the railing into the interior of the column, and then inserts the block on the fine-tuning rod into the interior of another column. The operation is convenient and does not require continuous support from the staff. After the connection is completed, the handle is turned clockwise to drive the second threaded rod to rotate, and the connecting tube drives the push block to move downward to squeeze the block, so that the block is tightly attached to the inner wall of the column, and the railing can be fixed to complete the installation. The installation efficiency is higher, and the handle is rotated in the opposite direction to facilitate the removal and replacement of the railing that needs to be removed.

[0015] 2. The utility model sets an adjustment component, specifically, pulls the plug rod to release the fixation of the adjustment rod, and then pulls the adjustment rod to adjust the required length. After the adjustment is completed, the plug rod is released to fine-tune the adjustment rod, so that the plug rod can be smoothly inserted into the positioning hole, and then the fine-tuning rod is rotated to move it on the threaded rod, thereby adjusting the position of the block on the fine-tuning rod, which is convenient for inserting into another column. It can be suitable for different distances between two columns, making the docking more accurate.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[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 internal cross-sectional structure of the adjusting rod of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the fixing block of the utility model;

[0022] Figure 5 It is a schematic diagram of the left side cross-sectional structure of the utility model railing.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Column; 11. Adjustment assembly; 111. Adjustment rod; 112. Handrail; 21. Block; 22. Positioning hole; 113. Fine-tuning rod; 114. Threaded rod one; 115. Limit block; 12. Fixing block; 121. Insert rod; 122. Limit ring; 123. Spring; 13. Push block; 131. Connecting tube; 132. Threaded ring; 133. Threaded rod two; 134. Turn handle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 As shown, the utility model is a crane platform railing, including a column 1, and an adjustment component 11 is arranged on the left and right sides of the column 1. The two adjustment components 11 are symmetrically arranged with the column 1 as the center. The parts contained in the two adjustment components 11 are the same. The adjustment component 11 includes an adjustment rod 111, and a railing 112 is inserted on the left side of the adjustment rod 111;

[0027] A cavity is provided inside the column 1, and three push blocks 13 are slidably connected to the inner wall of the cavity. The three push blocks 13 are arranged in a vertical array, and the three push blocks 13 are connected to each other by a connecting rod. A connecting tube 131 is fixedly connected to the top of the push block 13 located at the top, and a threaded ring 132 is fixedly connected to the inner wall of the connecting tube 131, and a threaded rod 133 is threadedly connected to the inner wall of the threaded ring 132, and a turning handle 134 is fixedly connected to the top of the threaded rod 133. By setting the push block 13, specifically, the block 21 on the railing 112 is inserted into the interior of the column 1, and then the block 21 on the fine-tuning rod 113 is inserted into the interior of another column 1. The operation is convenient and does not require continuous support from the staff. After the connection is completed, the turning handle 134 is turned clockwise to make the push block 13 squeeze the block 21, so that the block 21 is tightly attached to the inner wall of the column 1 to complete the installation, and the turning handle 134 is turned in the opposite direction to facilitate the disassembly and replacement of the railing 112 that needs to be disassembled.

[0028] A fine-tuning rod 113 is provided on the right side of the adjusting rod 111, and a block 21 is fixedly connected to the left side of the railing 112 and the right side of the fine-tuning rod 113. A plurality of positioning holes 22 are opened on the top of the railing 112, and a threaded rod 114 is fixedly connected to the right side of the adjusting rod 111. By setting the adjusting component 11, specifically, pulling the plug rod 121 to release the fixation of the adjusting rod 111, and then pulling the adjusting rod 111 to adjust the required length, after the adjustment is completed, the plug rod 121 is released to fine-tune the adjusting rod 111, so that the plug rod 121 is smoothly inserted into the positioning hole 22, and then the fine-tuning rod 113 is rotated to make it move on the threaded rod 114, so as to adjust the position of the block 21 on the fine-tuning rod 113, so as to facilitate insertion into another column 1, and can be suitable for different distances between two columns 1, so that the docking is more accurate.

[0029] The front and back sides of the inner wall of the adjusting rod 111 are fixedly connected to the limiting block 115 , the front and back sides of the handrail 112 are provided with limiting grooves, the inner walls of the limiting grooves are in contact with the outer surface of the limiting block 115 , and the top of the adjusting rod 111 is fixedly connected to the fixing block 12 .

[0030] A slide groove is provided inside the fixed block 12, and a rod 121 is slidably connected to the inner wall of the slide groove. A limit ring 122 is fixedly connected to the outer surface of the rod 121, and a spring 123 is fixedly connected to the top of the limit ring 122. The top of the spring 123 is fixedly connected to the top of the inner wall of the slide groove.

[0031] The outer surface of the push block 13 contacts the inner wall of the cavity opened inside the column 1. A number of slots are opened on the left and right sides of the column 1, and the slots are adapted to the block 21. The top of the second threaded rod 133 passes through the column 1 and extends to the outside. The second threaded rod 133 is rotatably connected to the column 1. The side of the block 21 close to the push block 13 is set as an inclined surface. The railing 112 is slidably connected to the adjustment rod 111, and a threaded groove is opened on the left side of the fine-tuning rod 113.

[0032] The outer surface of the threaded rod 114 is threadedly connected to the thread groove opened on the left side of the fine-tuning rod 113, the insertion rod 121 is adapted to the positioning hole 22, the bottom of the insertion rod 121 passes through the adjusting rod 111 and extends to the inside, the insertion rod 121 is slidingly connected to the adjusting rod 111, the outer surface of the limiting ring 122 contacts the inner wall of the slide groove, the top of the insertion rod 121 passes through the fixed block 12 and extends to the outside, and the bottom of the limiting ring 122 contacts the bottom of the inner wall of the slide groove.

[0033] A specific application of this embodiment is:

[0034] When in use, the bottom of the column 1 is installed on the crane by bolts, and then the block 21 on the railing 112 is inserted into the column 1. When the length of the railing 112 needs to be adjusted, the insertion rod 121 is pulled to make it leave the positioning hole 22, and the fixing of the adjusting rod 111 is released. At the same time, the limiting ring 122 moves with it and squeezes the spring 123. Then, the adjusting rod 111 is pulled to adjust the required length, and the adjusting rod 111 slides on the limiting block 115, so that the adjusting rod 111 moves in a straight line to the left, and it can be ensured that the insertion rod 121 will not appear. After the adjustment is completed, the plug rod 121 is released, and the plug rod 121 is reset by the action of elasticity, and then the adjustment rod 111 is moved and fine-tuned to make the plug rod 121 smoothly inserted into the positioning hole 22, and the adjustment rod 111 is fixed, and then the fine-tuning rod 113 is rotated to make it move on the threaded rod 114, so as to adjust the position of the block 21 on the fine-tuning rod 113, so that the block 21 on the right side of the fine-tuning rod 113 is inserted into the other column 1, and the docking can be successfully completed, which is easy to operate and has more adjustment methods. The method can be applied to two columns 1 with different spacings, making the docking more accurate. At the same time, after docking, the railing 112 can be supported by the clamping block 21, which is convenient for subsequent operations and does not require continuous support from the staff. Multiple railings 112 are connected to the column 1 in the same way. After the connection is completed, the handle 134 is turned clockwise to drive the threaded rod 133 to rotate, and the connecting tube 131 moves downward on the threaded rod 133 through the threaded ring 132, thereby driving the upper push block 13 to move downward, and the push block 13 will pass through the connecting tube. The connecting rod drives the push block 13 below to move together. When the push block 13 contacts the block 21, the block 21 will be squeezed so that the block 21 is tightly attached to the inner wall of the column 1, and the railing 112 can be fixed to complete the installation, which is more efficient. When the damaged railing 112 needs to be disassembled and replaced, the handle 134 is turned counterclockwise to move the push block 13 upward away from the block 21, and the railing 112 is released. Then, the railing 112 to be replaced is lifted upward and pulled out to be disassembled, which is convenient for replacement, and finally the intact railing 112 can be installed.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A crane platform handrail, comprising a column (1), wherein the column (1) is provided with an adjustment assembly (11) on the left and right sides thereof, wherein the two adjustment assemblies (11) are symmetrically arranged with the column (1) as the center, and the parts contained in the two adjustment assemblies (11) are the same, and characterized in that: The adjustment component (11) comprises an adjustment rod (111), and a railing (112) is inserted on the left side of the adjustment rod (111); A cavity is provided inside the column (1), and three push blocks (13) are slidably connected to the inner wall of the cavity. The three push blocks (13) are arranged in a vertical array and are connected to each other through a connecting rod. The top of the push block (13) located at the top is fixedly connected to a connecting tube (131), the inner wall of the connecting tube (131) is fixedly connected to a threaded ring (132), the inner wall of the threaded ring (132) is threadedly connected to a second threaded rod (133), and the top of the second threaded rod (133) is fixedly connected to a turning handle (134).

2. The crane platform railing according to claim 1, characterized in that: A fine-tuning rod (113) is arranged on the right side of the adjusting rod (111), a clamping block (21) is fixedly connected to the left side of the handrail (112) and the right side of the fine-tuning rod (113), a plurality of positioning holes (22) are arranged on the top of the handrail (112), and a threaded rod (114) is fixedly connected to the right side of the adjusting rod (111).

3. The crane platform railing according to claim 2, characterized in that: The front and back sides of the inner walls of the adjusting rod (111) are fixedly connected to the limiting block (115); the front and back sides of the handrail (112) are provided with limiting grooves; the inner walls of the limiting grooves are in contact with the outer surfaces of the limiting blocks (115); and the top of the adjusting rod (111) is fixedly connected to the fixing block (12).

4. The crane platform railing according to claim 3, characterized in that: A sliding groove is provided inside the fixed block (12), an insert rod (121) is slidably connected to the inner wall of the sliding groove, a limiting ring (122) is fixedly connected to the outer surface of the insert rod (121), a spring (123) is fixedly connected to the top of the limiting ring (122), and the top of the spring (123) is fixedly connected to the top of the inner wall of the sliding groove.

5. The crane platform railing according to claim 4, characterized in that: The outer surface of the push block (13) contacts the inner wall of the cavity opened inside the column (1); a plurality of slots are opened on the left and right sides of the column (1); the slots are adapted to the block (21); the top of the second threaded rod (133) passes through the column (1) and extends to the outside; the second threaded rod (133) is rotatably connected to the column (1).

6. The crane platform handrail according to claim 4, characterized in that: The side of the clamping block (21) close to the pushing block (13) is provided with an inclined surface, the railing (112) is slidably connected with the adjusting rod (111), and a thread groove is provided on the left side of the fine-tuning rod (113).

7. The crane platform railing according to claim 5, characterized in that: The outer surface of the threaded rod (114) is threadedly connected to a thread groove provided on the left side of the fine-tuning rod (113); the insertion rod (121) is matched with the positioning hole (22); the bottom of the insertion rod (121) passes through the adjusting rod (111) and extends to the inside; the insertion rod (121) is slidably connected to the adjusting rod (111).

8. The crane platform railing according to claim 5, characterized in that: The outer surface of the limiting ring (122) contacts the inner wall of the slide groove, the top of the insertion rod (121) passes through the fixing block (12) and extends to the outside, and the bottom of the limiting ring (122) contacts the bottom of the inner wall of the slide groove.

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