Lifting equipment for mounting precast concrete guardrail

Abstract

The utility model discloses a hoisting device for precast concrete guardrail installation, which comprises a clamping plate, the side surface of the clamping plate is provided with a clamping mechanism, the clamping mechanism comprises at least three open slots uniformly arranged between the two sides of the clamping plate, and a clamping block is slidably connected between the inner wall of the top and the inner wall of the bottom of each open slot. A clamping groove is formed between one side of the top and one side of the bottom of each clamping block, the sizes of every two adjacent clamping grooves are different, and a friction belt aligned with the clamping blocks is fixedly connected between the two sides of the side faces of the clamping plates. According to the utility model, through the arrangement of the clamping blocks, the device is connected to lifting equipment through the lifting holes, the device is moved to the position above the concrete guardrail, the clamping plates are located on the two sides of the concrete guardrail, the clamping plates are taken down, the connecting frame is lifted, the connecting frame drives the second connecting plate to rotate, the second connecting plate drives the first connecting plate to rotate, and the first connecting plate drives the clamping plates to move; and the clamping plates are clamped on the two sides of the concrete guardrail, so that a user can conveniently lift and transfer the concrete guardrail.

Description

Technical Field

[0001] This utility model relates to the field of concrete guardrail lifting equipment, and in particular to a lifting device for installing precast concrete guardrails. Background Technology

[0002] During the production, installation, and transportation of concrete guardrails, lifting equipment is required to hold and transport the concrete guardrails.

[0003] A search revealed a utility model patent with application number 202321535181.9, entitled "A Concrete Block Lifting Device." This patented device uses a lifting frame to restrict the installation positions of a first adjusting mechanism and symmetrically arranged limiting clamps. Activating the first adjusting mechanism controls the movement of the lifting frame, shortening the distance between the symmetrically arranged limiting clamps to clamp and limit the concrete block stack. Activating the second adjusting mechanism adjusts the position between the uppermost limiting clamp and the concrete block stack, thereby increasing the clamping force on the uppermost blocks of the concrete block stack. When the symmetrically arranged limiting clamps clamp the concrete block stack, the protective mechanism works in conjunction with the limiting clamps to provide all-around protection for the concrete block stack, minimizing the possibility of concrete blocks slipping due to sudden vehicle stops, thus reducing certain safety hazards.

[0004] However, because the user cannot use the device to lift square or cylindrical concrete railings at the same time, the user needs to frequently detach and reassemble the device from the lifting equipment, which affects the efficiency of lifting and transporting the device. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a lifting device for installing precast concrete guardrails.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lifting device for installing precast concrete guardrails includes a clamping plate. The clamping plate has a clamping mechanism on its side. The clamping mechanism includes at least three slots evenly spaced between the two sides of the clamping plate. A clamping block is slidably connected between the top inner wall and the bottom inner wall of the slot. A clamping groove is formed between the top side and the bottom side of the clamping block, and the dimensions of two adjacent clamping grooves are different. A friction strip aligned with the clamping block is fixedly connected between the two sides of the clamping plate.

[0008] Preferably, at least two movable blocks aligned with the clamping block are slidably connected between the top inner wall and the bottom inner wall of the slot. One side of the movable block is slidably connected to one side of the clamping block, and one side of the movable block has a moving groove aligned with the clamping block.

[0009] Preferably, a movable block is slidably connected to one inner wall of the movable groove, and the other side of the movable block is fixedly connected to one side of the clamping block. A second lead screw is rotatably connected to the inner side wall of the movable groove, and the other end of the second lead screw extends to the outside of the movable groove. The circumferential side of the second lead screw is threadedly connected to the inside of the movable block.

[0010] Preferably, a limiting post 2 is fixedly connected to the inner wall of the side of the movable groove, and the other end of the limiting post 2 extends to the outside of the movable groove. The circumferential side of the limiting post 2 is slidably connected to the inside of the movable block. A lead screw 1 is threaded between the inner wall and the outer wall of the grooved side, and one end of the lead screw 1 is rotatably connected to one side of the movable block.

[0011] Preferably, a limiting post is slidably connected between the inner and outer walls of the slotted surface. One end of the limiting post is fixedly connected to one side of the movable block. A connecting frame is provided above the clamping plate. A lifting hole is provided between the two sides of the connecting frame. A connecting groove is provided on both sides of the bottom of the connecting frame. A connecting shaft is fixedly connected between one side of the two connecting grooves.

[0012] Preferably, at least four connecting plates 2 aligned with the connecting groove are evenly rotatably connected to the circumferential side of the connecting shaft 2, and a connecting plate 1 aligned with the clamping plate is rotatably connected to the other end of the connecting plate 2. The side of the connecting plate 1 is fixedly connected to the side of the clamping plate, and at least two connecting shafts 1 are evenly arranged above the clamping plate.

[0013] Preferably, the circumferential side of connecting shaft one is rotatably connected to the interior of connecting plate two and the interior of connecting plate one. A connecting shaft three is provided above the clamping plate. The circumferential side of connecting shaft three is rotatably connected to the interior of connecting plate two and the interior of connecting plate one. A locking post is fixedly connected to one side of connecting plate one. A locking plate is rotatably connected to the circumferential side of connecting shaft two. The bottom of the locking plate is engaged with the circumferential side of the locking post.

[0014] Compared with the prior art, this utility model provides a lifting device for installing precast concrete guardrails, which has the following advantages:

[0015] The device is connected to the lifting equipment via lifting holes using the clamping blocks. The device is moved above the concrete guardrail, positioning the clamping plates on both sides. The clamping plates are removed, and the connecting frame is raised. The connecting frame rotates the second connecting plate, which in turn rotates the first connecting plate. The first connecting plate then moves the clamping plates, securing them to both sides of the concrete guardrail. This allows for convenient lifting and transport of the concrete guardrail. Rotating the second lead screw moves the moving block, which in turn extends the clamping groove out of the clamping plate. This design helps prevent the user from frequently disassembling and reassembling the device from the lifting equipment, as they would otherwise be unable to simultaneously use the device to lift square or cylindrical concrete guardrails. The device improves lifting and transport efficiency, and the different sized clamping slots can clamp and lift cylindrical concrete guardrails of various sizes, further expanding the device's applicability. Rotating the lead screw moves the movable block, which in turn moves the clamping block, which in turn moves the clamping slot. This allows the user to fine-tune the position of the clamping slot according to the location of the concrete guardrail, ensuring that the center of the clamping slot is aligned with the concrete guardrail, thus improving the stability of the device when transporting the concrete guardrail. When the clamping plates and clamping blocks clamp the concrete guardrail, the friction band between the device and the concrete guardrail helps to reduce the gap between the device and the concrete guardrail, improving the stability of the clamping and enhancing the device's clamping effect on the concrete guardrail. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a lifting device for installing precast concrete guardrails proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a lifting device for installing precast concrete guardrails according to the present invention.

[0018] Figure 3 This is a schematic diagram of the clamping block structure of a lifting device for installing precast concrete guardrails proposed in this utility model;

[0019] Figure 4 This is a partial structural diagram of a lifting device for installing precast concrete guardrails proposed in this utility model.

[0020] In the diagram: 1-Clamping plate, 2-Connecting plate one, 3-Connecting plate two, 4-Friction belt, 5-Connecting shaft one, 6-Connecting frame, 7-Lifting hole, 8-Clamping plate, 9-Connecting shaft two, 10-Limiting post one, 11-Connecting shaft three, 12-Slotted, 13-Screw rod one, 14-Clamping block, 15-Clamping groove, 16-Moving block, 17-Screw rod two, 18-Moving groove, 19-Limiting post two, 20-Movable block, 21-Clamping post. Detailed Implementation

[0021] Example, refer to Figure 1-4A lifting device for installing precast concrete guardrails includes a clamping plate 1. A clamping mechanism is provided on the side of the clamping plate 1. The clamping mechanism includes at least three slots 12 evenly opened between the two sides of the clamping plate 1. A clamping block 14 is slidably connected between the top inner wall and the bottom inner wall of the slot 12. A clamping groove 15 is opened between the top side and the bottom side of the clamping block 14, and the dimensions of two adjacent clamping grooves 15 are different. A friction strip 4 aligned with the clamping block 14 is fixedly connected between the two sides of the side of the clamping plate 1.

[0022] In this utility model, at least two movable blocks 20 aligned with clamping blocks 14 are slidably connected between the top inner wall and the bottom inner wall of the slot 12. One side of the movable block 20 is slidably connected to one side of the clamping block 14, and one side of the movable block 20 is provided with a moving groove 18 aligned with the clamping block 14.

[0023] A movable block 16 is slidably connected to one inner wall of the movable groove 18, and the other side of the movable block 16 is fixedly connected to one side of the clamping block 14. A second lead screw 17 is rotatably connected to the inner side of the movable groove 18, and the other end of the second lead screw 17 extends to the outside of the movable groove 18. The circumferential side of the second lead screw 17 is threadedly connected to the inside of the movable block 16.

[0024] A limiting post 19 is fixedly connected to the inner side wall of the movable groove 18. The other end of the limiting post 19 extends to the outside of the movable groove 18. The circumferential side of the limiting post 19 is slidably connected to the inside of the movable block 16. A lead screw 13 is threaded between the inner and outer walls of one side of the slot 12. One end of the lead screw 13 is rotatably connected to one side of the movable block 20.

[0025] A limiting post 10 is slidably connected between the inner and outer walls of one side of the slot 12. One end of the limiting post 10 is fixedly connected to one side of the movable block 20. A connecting frame 6 is provided above the clamping plate 1. A lifting hole 7 is provided between the two sides of the connecting frame 6. A connecting groove is provided on both sides of the bottom of the connecting frame 6. A connecting shaft 9 is fixedly connected between one side of the two connecting grooves.

[0026] The circumferential side of the connecting shaft 2 9 is evenly connected to at least four connecting plates 2 3 aligned with the connecting groove. The other end of the connecting plate 2 3 is rotatably connected to a connecting plate 1 aligned with the clamping plate 1. The side of the connecting plate 1 2 is fixedly connected to the side of the clamping plate 1. At least two connecting shafts 1 5 are evenly arranged above the clamping plate 1.

[0027] The circumferential side of connecting shaft 15 is rotatably connected to the inside of connecting plate 2 and connecting plate 3. A connecting shaft 31 is provided above clamping plate 1. The circumferential side of connecting shaft 31 is rotatably connected to the inside of connecting plate 2 and connecting plate 2. A locking post 21 is fixedly connected to one side of connecting plate 2. A locking plate 8 is rotatably connected to the circumferential side of connecting shaft 29. The bottom of locking plate 8 is locked to the circumferential side of locking post 21.

[0028] Working principle: Connect the device to the lifting equipment through the lifting hole 7. Move the device above the concrete guardrail, positioning the clamping plates 1 on both sides of the guardrail. Remove the clamping plate 8, raise the connecting frame 6, which rotates the connecting plate 2 3, which in turn rotates the connecting plate 1 2, which in turn moves the clamping plate 1, securing it to both sides of the concrete guardrail. This allows the user to easily lift and transport the concrete guardrail. Rotate the screw rod 17, which moves the moving block 16, causing the clamping groove 15 to extend out of the clamping plate 1. This helps prevent the user from being unable to simultaneously use the device to lift square or cylindrical concrete guardrails, thus avoiding the need for frequent disassembly and reassembly of the device from the lifting equipment, which would affect the lifting process. The device improves lifting and transport efficiency, and the different sizes of clamping slots 15 can clamp and lift cylindrical concrete guardrails of various sizes, further expanding the applicability of the device. Rotating the lead screw 13 moves the movable block 20, which in turn moves the clamping block 14. The clamping block 14 then uses the clamping slots 15, allowing the user to fine-tune the position of the clamping slots 15 according to the position of the concrete guardrail, ensuring that the center of the clamping slots 15 is aligned with the concrete guardrail, thus improving the stability of the device when transporting the concrete guardrail. When the clamping plates 1 and clamping blocks 14 clamp the concrete guardrail, the friction band between the device and the concrete guardrail helps to reduce the gap between the device and the concrete guardrail, improving the stability of the device clamping the concrete guardrail and enhancing the clamping effect of the device on the concrete guardrail.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lifting device for installing precast concrete guardrails, comprising a clamping plate (1), characterized in that, The clamping plate (1) is provided with a clamping mechanism on its side. The clamping mechanism includes at least three slots (12) evenly opened between the two sides of the clamping plate (1). A clamping block (14) is slidably connected between the top inner wall and the bottom inner wall of the slot (12). A clamping groove (15) is opened between the top side and the bottom side of the clamping block (14), and the dimensions of two adjacent clamping grooves (15) are different. A friction strip (4) aligned with the clamping block (14) is fixedly connected between the two sides of the side of the clamping plate (1).

2. The lifting equipment for installing precast concrete guardrails according to claim 1, characterized in that, At least two movable blocks (20) aligned with the clamping block (14) are slidably connected between the top inner wall and the bottom inner wall of the slot (12). One side of the movable block (20) is slidably connected to one side of the clamping block (14), and one side of the movable block (20) is provided with a moving groove (18) aligned with the clamping block (14).

3. The lifting equipment for installing precast concrete guardrails according to claim 2, characterized in that, A movable block (16) is slidably connected to one inner wall of the movable groove (18), and the other side of the movable block (16) is fixedly connected to one side of the clamping block (14). A second lead screw (17) is rotatably connected to the inner side of the movable groove (18), and the other end of the second lead screw (17) extends to the outside of the movable groove (18). The circumferential side of the second lead screw (17) is threadedly connected to the inside of the movable block (16).

4. The lifting equipment for installing precast concrete guardrails according to claim 3, characterized in that, The inner side wall of the movable groove (18) is fixedly connected to the second limiting post (19), and the other end of the second limiting post (19) extends to the outside of the movable groove (18). The circumferential side of the second limiting post (19) is slidably connected to the inside of the movable block (16). A screw rod (13) is threaded between the inner wall and the outer wall of one side of the slot (12), and one end of the screw rod (13) is rotatably connected to one side of the movable block (20).

5. The lifting equipment for installing precast concrete guardrails according to claim 4, characterized in that, A limiting post (10) is slidably connected between the inner wall and the outer wall of the slot (12). One end of the limiting post (10) is fixedly connected to one side of the movable block (20). A connecting frame (6) is provided above the clamping plate (1). A lifting hole (7) is provided between the two sides of the connecting frame (6). A connecting groove is provided on both sides of the bottom of the connecting frame (6). A connecting shaft (9) is fixedly connected between one side of the two connecting grooves.

6. The lifting equipment for installing precast concrete guardrails according to claim 5, characterized in that, The circumferential side of the connecting shaft 2 (9) is evenly rotatably connected to at least four connecting plates 2 (3) aligned with the connecting groove. The other end of the connecting plate 2 (3) is rotatably connected to a connecting plate 1 (2) aligned with the clamping plate (1). The side of the connecting plate 1 (2) is fixedly connected to the side of the clamping plate (1). At least two connecting shafts 1 (5) are evenly arranged above the clamping plate (1).

7. The lifting equipment for installing precast concrete guardrails according to claim 6, characterized in that, The circumferential side of the connecting shaft 1 (5) is rotatably connected to the inside of the connecting plate 2 (3) and the inside of the connecting plate 1 (2). A connecting shaft 3 (11) is provided above the clamping plate (1). The circumferential side of the connecting shaft 3 (11) is rotatably connected to the inside of the connecting plate 2 (3) and the inside of the connecting plate 1 (2). A locking post (21) is fixedly connected to one side of the connecting plate 1 (2). A locking plate (8) is rotatably connected to the circumferential side of the connecting shaft 2 (9). The bottom of the locking plate (8) is locked to the circumferential side of the locking post (21).

Images