Lifting anti-falling structure for metro construction

Abstract

The utility model discloses a metro construction hoisting anti-falling structure, which relates to the technical field of metro construction, and comprises a hoisting tool body, two side end parts of the hoisting tool body are respectively provided with a chute, each chute is internally provided with a connecting block in a sliding manner, the side end part of each connecting block is fixedly provided with a supporting plate, and the supporting plates are fixedly arranged on the side end parts of the connecting blocks. The side end of each supporting plate is slidably provided with two clamping plates, the clamping plates move to drive the fixed clamping bases to move synchronously, the fixed clamping bases slide towards the two sides of the supporting plates, the top ends of the pull rods are pulled, the pull rods move and deflect towards the bottom ends of the supporting plates, the pull rods apply upward pulling force to the directional sliding rods, and the directional sliding rods are driven to move. The directional sliding rod slides upwards in the supporting plate, the supporting plate is pushed to move upwards, the supporting plate pushes the steel cable body to move upwards together, the steel cable body is pushed upwards, the steel cable body is in an overhead state, and workers can conveniently take the steel cable body and disassemble and take down the steel cable body.

Description

Technical Field

[0001] The utility model relates to the technical field of subway construction, in particular to a subway construction hoisting anti-falling structure. Background Art

[0002] The subway is a form of urban public transportation. Most urban rail transit systems are large-capacity, rapid urban public transportation systems used to carry commuter passengers within the city. When the subway is being constructed, the construction site is mostly located in the city center. The construction environment is complex and changeable, and the lifting of engineering parts requires greater caution.

[0003] At present, the existing lifting anti-falling structure (such as patent announcement number: CN221587820U) discloses an anti-falling lifting device, which drives two sets of U-shaped plug plates to be pulled out from between the T-shaped fixing plate and the T-shaped baffle plate by rotating the handle, and then the hook is pushed down to drive the T-shaped fixing plate to be pulled out from the T-shaped receiving groove, and the T-shaped fixing plate above the hook to be replaced is inserted into the T-shaped receiving groove, and then the handle is rotated in the opposite direction to drive the two sets of U-shaped plug plates to be inserted between the T-shaped fixing plate and the T-shaped baffle plate to fix the hook, thereby facilitating the replacement of the hook.

[0004] However, during the implementation of the above technical solution, it was found that at least the following technical problems exist: during lifting, the locking mechanism of the sling needs to be opened manually, which involves many operating steps and affects the lifting speed; at the same time, the sling and the steel cable can slide against each other, and the steel cable slides inside the sling, which is prone to shaking and leads to poor stability. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an anti-falling structure for lifting in subway construction, which solves the technical problems that the locking mechanism of the hoist needs to be opened manually, which involves many operating steps and affects the lifting speed. At the same time, the hoist and the steel cable can slide against each other, and the steel cable slides inside the hoist, which is easy to shake and leads to poor stability.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A subway construction hoisting anti-falling structure comprises a hoist body, wherein both side ends of the hoist body are provided with slide grooves, a connecting block is slidably installed inside each of the slide grooves, a supporting plate is fixedly installed on the side end of each of the connecting blocks, two clamping plates are slidably installed on the side end of each of the supporting plates, and a directional sliding rod is slidably installed on the top end of each of the supporting plates.

[0010] Preferably, a support plate is rotatably installed at the top end of each of the directional sliding rods, two pull rods are rotatably installed at the end of each of the directional sliding rods, two installation grooves are formed at the side end of each of the support plates, two return springs are fixedly installed at the side end of each of the clamping plates, a fixed clamping seat is fixedly installed at the bottom end of each of the clamping plates, two steel cable bodies are arranged at the top end of the sliding groove, and arc-shaped grooves are formed at the two side ends of each of the fixed clamping seats and are butted against the guide plates on the inner wall of the installation groove.

[0011] (III) Beneficial effects

[0012] 1. By the steel cable body squeezing the top end of the support plate, forcing the support plate to rotate and tilt at the top end of the directional sliding rod, and at the same time the directional sliding rod slides downward. The directional sliding rod penetrates through the inside of the support plate, and the directional sliding rod slides downward inside the support plate, applying a pulling force to the two pull rods, so that the pull rods apply an oblique pulling force to the two fixed clamping seats. At the same time, the fixed clamping seat drives the clamping plate to slide at the side end of the support plate, and the two clamping plates slide relative to each other. While reducing the distance, the two clamping plates squeeze the surface of the steel cable to limit the steel cable and prevent it from sliding, increasing the stability of hoisting. At the same time, the steel cable body can be self-locked, which is convenient for operation.

[0013] 2. Through the movement of the clamping plate, the fixed clamping seat is driven to move synchronously. The fixed clamping seat slides to both sides of the support plate, pulling the top end of the pull rod, so that the pull rod moves and deflects downward to the bottom end of the support plate. The pull rod applies an upward pulling force to the directional sliding rod, making the directional sliding rod slide upward inside the support plate, pushing the support plate to move upward. The support plate pushes the steel cable body to move upward together, pushing the steel cable body upward to make the steel cable body in an overhead state, which is convenient for the staff to take the steel cable body and disassemble and remove the steel cable body. Description of the drawings

[0014] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following takes the preferred embodiments of the present invention and combines the drawings to describe in detail as follows.

[0015] Figure 1 It is a structural diagram of the hoisting tool body of the present invention;

[0016] Figure 2 It is a structural diagram of the clamping plate of the present invention;

[0017] Figure 3 It is a structural diagram of the support plate of the present invention;

[0018] Figure 4 It is a structural diagram of the directional sliding rod of the present invention.

[0019] Legend: 11. Lifting device body; 12. Slide groove; 13. Clamp; 14. Cable body; 15. Connecting block; 16. Support plate; 17. Directional slide bar; 18. Support plate; 19. Return spring; 21. Fixed base; 22. Pull rod; 23. Mounting groove. DETAILED DESCRIPTION

[0020] The embodiment of the present application provides an anti-falling structure for lifting in subway construction, which effectively solves the problem that the locking mechanism of the hoisting device needs to be opened manually, and there are many operating steps, which affects the lifting speed. At the same time, the hoisting device and the steel cable can slide with each other, and the steel cable slides inside the hoist, which is easy to shake and leads to poor stability. The top of the support plate is squeezed by the steel cable body, forcing the support plate to rotate and tilt at the top of the directional slide rod. At the same time, the directional slide rod slides downward, and the directional slide rod penetrates the interior of the support plate. The directional slide rod slides downward inside the support plate, applying a pulling force to the two pull rods, so that the pull rods apply an oblique pulling force to the two fixed clamping seats, and at the same time, the fixed clamping seat drives the clamping plate to slide on the side end of the support plate. The two clamping plates slide with each other, reducing the spacing. At the same time, the two clamping plates squeeze the surface of the steel cable to limit the steel cable and prevent sliding, thereby increasing the stability of lifting. At the same time, the steel cable body can be locked by itself for easy operation. Example

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problems that the locking mechanism of the sling needs to be opened manually, the operation steps are many, and the lifting speed is affected. At the same time, the sling and the steel cable can slide with each other, and the steel cable slides inside the sling, which is easy to shake and leads to poor stability. The overall idea is as follows:

[0022] In view of the problems existing in the prior art, the utility model provides an anti-falling structure for subway construction lifting, including a hoisting device body 11, wherein the two side ends of the hoisting device body 11 are provided with slide grooves 12, and a connecting block 15 is slidably installed inside each slide groove 12, and a support plate 16 is fixedly installed on the side end of each connecting block 15, and two clamping plates 13 are slidably installed on the side end of each support plate 16, and a directional sliding rod 17 is slidably installed on the top of each support plate 16, and the connecting block 15 is an elliptical design, and a plurality of locking teeth are installed on the inner side of the clamping plate 13.

[0023] A support plate 18 is rotatably installed at the top end of each directional slide bar 17, two pull rods 22 are rotatably installed at the end of each directional slide bar 17, two installation grooves 23 are provided at the side end of each support plate 16, two reset springs 19 are fixedly installed at the side end of each clamping plate 13, a fixed clamping seat 21 is fixedly installed at the bottom end of each clamping plate 13. After the components under construction are lifted by the hoisting tool body 11 in cooperation with the steel cable body 14, the hoisting tool body 11 is gradually lowered, so that the hoisting tool body 11 reduces the tension on the steel cable body 14. At this time, the steel cable body 14 is gradually stretched and expanded, reducing the extrusion on the support plate 18. Under the action of multiple reset springs 19, the reset springs 19 push the clamping plate 13 in the opposite direction, so that the clamping plate 13 slides at the side end of the support plate 16, and the two clamping plates 13 slide and separate at the side end of the support plate 16, expanding the distance. Two steel cable bodies 14 are provided at the top end of the chute 12. Arc-shaped grooves are provided at the two side ends of each fixed clamping seat 21 and are butted against the guide plates on the inner wall of the installation groove 23. Two guide plates are installed on the inner side wall of the installation groove 23 and are fitted with the side ends of the clamping plate 13. The fixed clamping seat 21 is rotatably connected to the top end of the pull rod 22. A torsion spring is installed inside the reset spring 19.

[0024] Working principle:

[0025] First step, during use, the end of the steel cable body 14 is bound to the construction object. By moving the steel cable body 14, the top end of the steel cable body 14 is sleeved onto the top end of the hoisting tool body 11. The top end of the hoisting tool body 11 is designed as an upward arc. After the steel cable body 14 is sleeved onto the top end of the hoisting tool body 11, the steel cable body 14 is respectively placed between the two clamping plates 13. The hoisting tool body 11 is pulled upward to move. The hoisting tool body 11 moves upward to tighten the steel cable body 14. The steel cable body 14 is straightened under the force at the top end of the hoisting tool body 11 and is in close contact with the hoisting tool body 11. At the same time, the steel cable body 14 presses against the top end of the support plate 18, forcing the support plate 18 to rotate and tilt at the top end of the directional slide bar 17. At the same time, the directional slide bar 17 slides downward. The directional slide bar 17 penetrates through the inside of the support plate 16. The directional slide bar 17 slides downward inside the support plate 16, applying a pulling force to the two pull rods 22, so that the pull rods 22 apply an oblique pulling force to the two fixed clamping seats 21. At the same time, the fixed clamping seat 21 drives the clamping plate 13 to slide at the side end of the support plate 16. The two clamping plates 13 slide relative to each other. While reducing the distance, the two clamping plates 13 press against the surface of the steel cable to limit the steel cable. At the same time, the two clamping plates 13 slide at the side end of the support plate 16, squeezing the reset spring 19, forcing the reset spring 19 to be compressed inside the support plate 16.

[0026] In the second step, after hoisting the construction parts with the sling body 11 in cooperation with the steel cable body 14, gradually lower the sling body 11 to reduce the tension of the sling body 11 on the steel cable body 14. At this time, the steel cable body 14 is gradually stretched and expanded, reducing the extrusion on the support plate 18. Under the action of multiple reset springs 19, the reset springs 19 push the clamping plate 13 in the reverse direction, enabling the clamping plate 13 to slide at the side end of the support plate 16. The two clamping plates 13 slide and separate at the side end of the support plate 16, expanding the distance. At the same time, the movement of the clamping plate 13 drives the fixed clamping seat 21 to move synchronously. The fixed clamping seat 21 slides towards both sides of the support plate 16, pulling the top end of the pull rod 22, causing the pull rod 22 to move and deflect towards the bottom end of the support plate 16. The pull rod 22 applies an upward pulling force to the directional slide bar 17, enabling the directional slide bar 17 to slide upward inside the support plate 16, pushing the support plate 18 to move upward. The support plate 18 pushes the steel cable body 14 to move upward together, pushing the steel cable body 14 upward to make the steel cable body 14 in an overhead state, facilitating the staff to take and remove the steel cable body 14.

[0027] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A subway construction hoisting anti-detachment structure, including a hoisting tool body (11), characterized in that, Both side ends of the sling body (11) are provided with sliding grooves (12). A connecting block (15) is slidably installed inside each sliding groove (12). A support plate (16) is fixedly installed at the side end of each connecting block (15). Two clamping plates (13) are slidably installed at the side end of each support plate (16). A directional sliding rod (17) is slidably installed at the top of each support plate (16). Among them, the connecting block (15) is designed in an oval shape. At the same time, a plurality of teeth are installed on the inner side of the clamping plate (13).

2. The anti-detachment structure for subway construction hoisting according to claim 1, wherein A support plate (18) is rotatably installed at the top of each directional sliding rod (17). Two pull rods (22) are rotatably installed at the end of each directional sliding rod (17).

3. A subway construction hoisting anti-detachment structure according to claim 1, characterized in that, Two installation grooves (23) are provided at the side end of each support plate (16). Among them, two guide plates are installed on the inner side wall of the installation groove (23), which fit with the side end of the clamping plate (13).

4. The anti-detachment structure for subway construction hoisting according to claim 1, characterized in that, Two return springs (19) are fixedly installed at the side end of each clamping plate (13). A fixed clamping seat (21) is fixedly installed at the bottom of each clamping plate (13). Among them, the fixed clamping seat (21) is rotatably connected to the top of the pull rod (22), and a torsion spring is installed inside the return spring (19).

5. The anti-detachment structure for subway construction hoisting according to claim 1, characterized in that, Two steel cable bodies (14) are arranged at the top of the sliding groove (12).

6. The anti - falling structure for subway construction hoisting according to claim 4, characterized in that, Arc-shaped grooves are provided at the two side ends of each fixed clamping seat (21), which are butted against the guide plates on the inner wall of the installation groove (23).

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