Hoisting clamp for small prefabricated pipe ditch

Abstract

The utility model discloses a hoisting clamp for a small prefabricated pipe ditch, which belongs to the technical field of hoisting of prefabricated pipe ditches and comprises two clamping arms which are arranged in a crossed manner and are rotationally connected with each other; the two clamping plates are respectively arranged at the bottom ends of the clamping arms; the connecting ring is arranged at the upper end of the clamping arm; connecting mechanisms are arranged at the two ends of the lifting rope; according to the scheme, the lifting rope can pull the clamping arms on the two sides at the same time through the connecting mechanism to drive the clamping plates to clamp the prefabricated pipe ditch, so that the small pipe ditch can be conveniently lifted and moved, the situation that in a traditional mode, a steel wire rope needs to be manually bundled and disassembled back and forth, and a buckle penetrates is avoided, labor and time cost are saved, and construction efficiency is high; the hoisting construction period of the prefabricated pipe ditch is greatly shortened; and in addition, the situation that a steel wire rope is easily cut off at the edge when the steel wire rope is used for hoisting the pipe ditch traditionally is avoided, and the safety coefficient in the pipe ditch hoisting process is improved.

Description

Technical Field

[0001] The utility model belongs to the field of hoisting of prefabricated pipe trenches, and more specifically, relates to a hoisting clamp for small prefabricated pipe trenches. Background Technique

[0002] The pipe trench, also called the underground pipeline utility tunnel, refers to a structure that can accommodate two or more municipal public utility pipelines, including water supply, reclaimed water, heating, electricity, telecommunications, etc. With the progress of the times, small prefabricated pipe trench projects at the construction site are increasing in the construction industry. Generally, the pipe trenches are prefabricated in the factory and then transported to the installation site for installation.

[0003] The hoisting and installation methods of small prefabricated pipe trenches mainly include the following: crane hoisting (with manual cooperation), full manual construction, small excavator cooperating with special tools for hoisting method, etc. Due to factors such as the wastefulness of using hoisting machinery for small prefabricated pipe trenches, long pipelines, and limited surrounding environment, the excavator-assisted hoisting tool has gradually become the mainstream in the field of small pipe trench hoisting. Currently, the prefabricated pipe trenches are bundled and hoisted by steel wires, and then the excavator is used to cooperate in the hoisting construction.

[0004] However, the traditional steel wire hoisting method requires manual back-and-forth removal of the steel wire and threading of the buckle when hoisting the prefabricated pipe trench, which consumes a lot of labor and time, has low construction efficiency, and affects the construction process; moreover, when the steel wire is lifted, the position where it supports the edge of the pipe trench is easy to cut the steel wire, which has a large potential safety hazard and poor use effect.

[0005] Therefore, it is necessary to provide a hoisting clamp for small prefabricated pipe trenches to solve the above technical problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a hoisting clamp for small prefabricated pipe trenches to solve the above technical problems.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A hoisting clamp for small prefabricated pipe trenches, comprising:

[0009] Clamping arms, there are two of them and they are arranged in a cross shape, and the two clamping arms are rotatably connected to each other;

[0010] Clamping plates, there are two of them and they are respectively arranged at the bottom ends of the clamping arms;

[0011] Connection rings, arranged at the upper ends of the clamping arms;

[0012] A lifting rope, both ends of the lifting rope are provided with connection mechanisms, and are respectively connected to the connection rings on the two clamping arms.

[0013] Furthermore, the connecting mechanism includes:

[0014] A connecting sleeve column is provided at the end of the lifting rope, and a fixing plate is provided at one end of the connecting sleeve column;

[0015] An insertion column is movably arranged on the connecting sleeve column;

[0016] A limiting component is arranged on the fixing plate and is used for limiting the position of the insertion column.

[0017] Furthermore, a jack for the insertion column to pass through is provided on the fixing plate, a limiting hole is opened on the insertion column, and the limiting component includes:

[0018] A support plate is arranged on the fixing plate, and a limiting rod adapted to the limiting hole is movably arranged on the fixing plate;

[0019] A pull plate is arranged at one end of the limiting rod, and a first elastic member is arranged between the pull plate and the support plate.

[0020] Furthermore, a sliding groove is opened inside the connecting sleeve column, a sliding column is slidably connected in the sliding groove, a second elastic member is arranged between the sliding column and the inner wall of the sliding groove, a connecting rod is arranged on the sliding column, and the other end of the connecting rod is connected to the end of the insertion column.

[0021] Furthermore, a lifting block is arranged in the middle of the lifting rope, and a lifting hole is opened on the lifting block.

[0022] Furthermore, transfer blocks are arranged on both of the clamping arms, a rotating column is inserted between the two transfer blocks, and both of the transfer blocks are rotatably connected to the rotating column.

[0023] Furthermore, retaining rings are arranged on both sides of the rotating column corresponding to the transfer blocks.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0025] 1. In this solution, the lifting rope will simultaneously pull the clamping arms on both sides through the connecting mechanism, that is, the clamping arms on both sides will rotate relative to each other, and the two clamping arms will drive the clamping plates to clamp the prefabricated pipe trench, so that the small pipe trench can be conveniently hoisted and moved. This avoids the situation in the traditional method where workers need to tie and disassemble the steel wire ropes back and forth and thread the buckles, saving a lot of labor and time costs, significantly improving the construction efficiency, greatly shortening the construction period of the prefabricated pipe trench hoisting construction, and improving the production efficiency; and this method avoids the situation where the steel wire rope is easily cut at the edge when hoisting the pipe trench in the traditional use of the steel wire rope, improving the safety factor during the pipe trench hoisting process and having strong practicability.

[0026] 2. In this solution, the sling can be used cyclically, and clamping arms and clamping plates of different specifications can be selected according to different prefabricated pipe trenches; and the sling rope and the connecting mechanism are detachably installed with the clamping arm, which is not only convenient for storage and transportation, but also can be used in combination with different clamping arms and sling ropes according to actual needs, with strong flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0029] Figure 3 This is a schematic diagram of the structure of the components on the clamping arm of the utility model when the lifting rope is not installed;

[0030] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of each component on the suspension rope of the utility model;

[0032] Figure 6 for Figure 5 The enlarged structural diagram at C in the middle;

[0033] Figure 7 It is a schematic diagram of the cross-sectional structure of the connecting sleeve column and the fixing plate of the utility model.

[0034] Description of the numbers in the figure:

[0035] 1. Clamping arm; 2. Clamping plate; 3. Connecting ring; 4. Lifting rope; 5. Connecting mechanism; 51. Connecting sleeve column; 52. Fixing plate; 53. Inserting column; 54. Limiting component; 541. Support plate; 542. Limiting rod; 543. Pulling plate; 544. First elastic member; 6. Limiting hole; 7. Slide groove; 8. Sliding column; 9. Second elastic member; 10. Connecting rod; 11. Lifting block; 12. Lifting hole; 13. Adapter block; 14. Rotating column; 15. Retaining ring. DETAILED DESCRIPTION

[0036] 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 the embodiments. 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.

[0037] See also Figures 1-3 andFigure 5 , a hoisting fixture for a small prefabricated pipe trench, comprising: clamping arms 1, two of which are arranged in a crosswise manner and are rotatably connected to each other; clamping plates 2, two of which are respectively arranged at the bottom ends of the clamping arms 1; connecting rings 3, arranged at the upper ends of the clamping arms 1; a lifting rope 4, and connecting mechanisms 5 are arranged at both ends of the lifting rope 4 and are respectively connected to the connecting rings 3 on the two clamping arms 1.

[0038] During use, first install the lifting rope 4 onto the two clamping arms 1 respectively through the connecting mechanisms 5, then hang the lifting rope 4 on the excavator equipment, and then drive the clamping arms 1 and the clamping plates 2 to move. After the clamping plates 2 move to the position of the prefabricated pipe trench to be hoisted, make the two clamping plates 2 on both sides respectively clamp on both sides of the prefabricated pipe trench. Then, drive the lifting rope 4 to move upward by the excavator. First, the middle part of the lifting rope 4 will move upward, and the two sides of the lifting rope 4 will simultaneously pull the two clamping arms 1 on both sides through the connecting mechanisms 5, that is, the two clamping arms 1 on both sides will rotate relative to each other. The two clamping arms 1 at the upper and lower sides of the rotation point at the intersection of the two clamping arms 1 will rotate towards each other, so that the two clamping plates 2 at the ends of the two clamping arms 1 will rotate towards each other, and then the clamping plates 2 will gradually clamp the prefabricated pipe trench. And as the excavator drives the lifting rope 4 to rise, the clamping force of the clamping plates 2 on the prefabricated pipe trench will also become greater and greater. Finally, the prefabricated pipe trench can be clamped by the clamping plates 2, and the hoisting and moving of the prefabricated pipe trench can be realized by the movement of the excavator. It can conveniently hoist and move the small pipe trench, avoiding the situation that the traditional method requires manual back-and-forth bundling and unbundling of steel wires and threading of buckles, saving a lot of labor and time costs, significantly improving the construction efficiency, greatly shortening the construction period of the prefabricated pipe trench hoisting construction, and improving the production efficiency; and this method avoids the situation that the steel wire is easily cut at the edge when hoisting the pipe trench by the traditional use of steel wire, improving the safety factor during the pipe trench hoisting process, with good use effect and strong practicability.

[0039] Moreover, this device can be recycled and has a long service life. Different specifications of clamping arms 1 and clamping plates 2 can be selected according to different prefabricated pipe trenches. And the lifting rope 4 and the connecting mechanisms 5 are detachably installed on the clamping arms 1, which not only facilitates the storage and transportation of the clamping arms 1 and the lifting rope 4, but also can be used in combination with different clamping arms 1 and lifting ropes 4 according to actual needs, with strong flexibility.

[0040] Please refer to Figures 1-2 and Figures 5-6The connection mechanism 5 includes: a connection sleeve column 51, which is arranged at the end of the suspension rope 4, and a fixing plate 52 is arranged at one end of the connection sleeve column 51; a plug column 53, which is movably arranged on the connection sleeve column 51; and a limiting component 54, which is arranged on the fixing plate 52 and is used to limit the position of the plug column 53. When the two ends of the suspension rope 4 are respectively installed on the two clamping arms 1, the plug column 53 is first moved to move along the connection sleeve column 51, that is, the plug column 53 moves in a direction away from the fixing plate 52. When the gap between the plug column 53 and the fixing plate 52 is greater than the length of the connection ring 3, the connection ring 3 can be placed between the plug column 53 and the fixing plate 52, and then the plug column 53 is moved to insert the plug column 53 into the connection ring 3, that is, to make it pass through the connection ring 3. Finally, the position of the plug column 53 is limited by the limiting component 54, that is, the plug column 53 cannot move along the connection sleeve column 51 at this time, and the connection between the suspension rope 4 and the clamping arm 1 is completed through the connection mechanism 5.

[0041] In this embodiment, preferably, please refer to Figures 5-7 The fixed plate 52 is provided with an insertion hole for the insertion column 53 to pass through, and the insertion column 53 is provided with a limiting hole 6. The limiting component 54 includes: a support plate 541, which is arranged on the fixed plate 52, and a limiting rod 542 adapted to the limiting hole 6 is movably arranged on the fixed plate 52; a pulling plate 543, which is arranged at one end of the limiting rod 542, and a first elastic member 544 is arranged between the pulling plate 543 and the support plate 541. The first elastic member 544 in the present application adopts a spring. After the plug post 53 is passed through the connecting ring 3, the pull plate 543 is pulled to drive the limiting rod 542 to move. At this time, the first elastic member 544 is in a stretched state. After the limiting rod 542 is pulled to a position where it does not interfere with the insertion hole of the fixing plate 52, the plug post 53 continues to pass through the insertion hole of the fixing plate 52, so that the limiting hole 6 of the plug post 53 is in the position of the limiting rod 542, and then the pull plate 543 is released. The limiting rod 542 can be driven to move and finally restore to the initial state through the rebound force of the first elastic member 544. Finally, the limiting rod 542 will enter the limiting hole 6 of the plug post 53, thereby limiting the plug post 53, which can avoid the situation where it slips out of the connecting ring 3 during subsequent lifting, thereby improving the effect of subsequent lifting.

[0042] In this embodiment, preferably, please refer to Figure 2 , Figure 5 and Figure 7, a chute 7 is provided inside the connecting sleeve column 51, a sliding column 8 is slidably connected in the chute 7, a second elastic member 9 is arranged between the sliding column 8 and the inner wall of the chute 7, a connecting rod 10 is arranged on the sliding column 8, and the other end of the connecting rod 10 is connected to the end of the inserting column 53. In this application, the second elastic member 9 adopts the cooperation of a spring and a damper, and the damper is not shown in the existing technology figure. When the inserting column 53 is moved along the connecting sleeve column 51, the inserting column 53 will drive the sliding column 8 to move along the chute 7 through the connecting rod 10, and when the inserting column 53 is moved in a direction away from the fixing plate 52, the sliding column 8 will slide out of the chute 7 and stretch the second elastic member 9. When the inserting column 53 is released, the second elastic member 9 will drive the sliding column 8 and the inserting column 53 to move back to the initial position.

[0043] In this embodiment, preferably, please refer to Figure 1 and Figure 5 , a hanging block 11 is arranged in the middle of the hanging rope 4, and a hanging hole 12 is opened on the hanging block 11. The hanging block 11 can cooperate with external equipment. For example, a hook on an excavator bucket can hook the hanging hole 12 of the hanging block 11, so that the hanging rope 4 and the clamping arm 1 can be lifted, which is convenient for lifting the hanging rope 4.

[0044] In this embodiment, preferably, please refer to Figures 3-4 , transfer blocks 13 are arranged on both clamping arms 1, a rotating column 14 is inserted between the two transfer blocks 13, and the two transfer blocks 13 are rotatably connected to the rotating column 14. When the two clamping arms 1 are driven by the hanging rope 4 to rotate relative to each other, the two clamping arms 1 will rotate around the rotating column 14 through the transfer blocks 13, that is, the axis of the rotating column 14 is the rotation axis point of the two clamping arms 1.

[0045] In this embodiment, preferably, please refer to Figures 3-4 , retaining rings 15 are arranged on both sides of the rotating column 14 corresponding to the transfer blocks 13. The retaining rings 15 can block and limit both sides of the transfer blocks 13 on the rotating column 14, which can prevent the transfer blocks 13 from driving the clamping arms 1 to move and shake along the rotating column 14, and can also prevent the transfer blocks 13 from detaching from the rotating column 14.

[0046] It should be understood that the examples and embodiments described herein are only for illustration and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes according to it. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0047] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0048] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A lifting fixture for a small prefabricated pipe trench, characterized in that: include: The clamping arms (1) are provided with two and are arranged in a cross-type manner, and the two clamping arms (1) are rotatably connected to each other; Two clamping plates (2) are provided and are respectively arranged at the bottom ends of the clamping arms (1); A connecting ring (3) is arranged at the upper end of the clamping arm (1); A sling (4), wherein both ends of the sling (4) are provided with connection mechanisms (5) which are respectively connected to the connection rings (3) on the two clamping arms (1); The connecting mechanism (5) comprises: A connecting sleeve column (51) is arranged at the end of the suspension rope (4), and a fixing plate (52) is arranged at one end of the connecting sleeve column (51); An inserting column (53) movably arranged on the connecting sleeve column (51); A limiting component (54) is arranged on the fixing plate (52) and is used to limit the position of the plug post (53); The fixing plate (52) is provided with an insertion hole for the insertion column (53) to pass through, the insertion column (53) is provided with a limiting hole (6), and the limiting component (54) comprises: A support plate (541) is arranged on the fixing plate (52), and a limiting rod (542) adapted to the limiting hole (6) is movably arranged on the fixing plate (52); A pulling plate (543) is arranged at one end of the limiting rod (542), and a first elastic member (544) is arranged between the pulling plate (543) and the supporting plate (541).

2. A small prefabricated pipe trench hoisting fixture according to claim 1, characterized in that: A sliding groove (7) is provided inside the connecting sleeve (51), and a sliding column (8) is slidably connected inside the sliding groove (7). A second elastic member (9) is provided between the sliding column (8) and the inner wall of the sliding groove (7). A connecting rod (10) is provided on the sliding column (8), and the other end of the connecting rod (10) is connected to the end of the plug column (53).

3. A small prefabricated pipe trench hoisting fixture according to claim 1, characterized in that: A hanging block (11) is provided in the middle of the hanging rope (4), and a hanging hole (12) is provided on the hanging block (11).

4. A small prefabricated pipe trench hoisting fixture according to claim 1, characterized in that: The two clamping arms (1) are each provided with an adapter block (13), a rotating column (14) is inserted between the two adapter blocks (13), and the two adapter blocks (13) are both rotatably connected to the rotating column (14).

5. A small prefabricated pipe trench hoisting fixture according to claim 4, characterized in that: Snap rings (15) are provided on both sides of the rotating column (14) corresponding to the transfer block (13).

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