Cloth cover fixing device for wrapping bridge pier body with plastic cloth in high and cold environment

By using a plastic sheet fixing device in a high-altitude cold environment and utilizing a reciprocating screw and extrusion assembly to make the geotextile close to the bridge pier, the problem of loose rope fixation is solved and the curing effect of concrete is improved.

CN223481659UActive Publication Date: 2025-10-28CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1
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Patent Information

Application Number
CN202422718072.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-10-28
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

In a high-altitude cold environment, the geotextile cannot be completely covered when it is fixed with ropes, resulting in the geotextile not being tightly bonded to the concrete pier, affecting the concrete curing effect.

Method used

A fixing device for wrapping the bridge pier with plastic sheeting is used. The reciprocating screw and extrusion assembly are used to drive the extrusion block to move up and down between the fixed ropes. Combined with the elastic force of the spring, the geotextile is made to fit tightly against the bridge pier, ensuring a tight fit.

Benefits of technology

It improves the control of temperature difference between concrete and environment, enhances the curing effect of concrete, and prevents the geotextile in the raised position from affecting the curing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cloth cover fixing device for wrapping a bridge pier body with plastic cloth in a high and cold environment, which comprises a plurality of fixing ropes on the outer side of geotechnical cloth, the geotechnical cloth spirally wraps the outer side of the bridge pier body, a fixed seat is arranged at the bottom of the outer side of the bridge pier body, and a movable seat is arranged at the top of the fixed seat. A moving assembly used for driving the movable seat to move up and down is arranged on the fixed seat, a plurality of extrusion assemblies are arranged on the movable seat, each extrusion assembly comprises an extrusion block, each extrusion block is arranged between two fixed ropes and makes contact with geotechnical cloth, and the extrusion blocks are driven to move up and down between the fixed ropes through rotation of the reciprocating lead screw; the extrusion blocks are tightly attached to the geotechnical cloth on the outer side of the bridge pier body through cooperation with the elastic force of the springs, the protruding geotechnical cloth can be tightly pressed on the bridge pier body by the extrusion blocks at the positions not covered by the fixing ropes, and therefore the geotechnical cloth and concrete of the bridge pier body are combined more tightly, and the situation that the difference between the concrete surface temperature and the environment temperature is too large is prevented; the concrete curing effect is improved.
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Description

Technical Field

[0001] This application relates to the field of bridge pier construction, and in particular to a cloth fixing device for wrapping bridge piers with plastic sheeting in cold environments. Background Technology

[0002] During the construction of bridge piers in high-altitude and cold environments, concrete curing is required after the concrete formwork is removed. During the curing period, the temperature difference between the core and surface of the concrete and the ambient temperature should not be too large. Therefore, geotextiles are needed to tightly wrap the concrete piers from top to bottom to ensure that the membrane and the concrete surface are tightly bonded and to promote the hydration effect of the concrete. This requires fixing the geotextiles.

[0003] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: When fixing the geotextile to the concrete of the bridge pier, fixing ropes are generally used to wrap around the geotextile so that the geotextile tightly wraps the concrete bridge pier. However, the fixing of the ropes cannot completely cover all the parts of the geotextile, so that the geotextile in the uncovered parts may bulge and cannot be tightly bonded to the concrete, affecting the subsequent concrete curing effect. Utility Model Content

[0004] This application provides a fabric fixing device for wrapping bridge piers with plastic sheeting in cold environments, which solves the problem of loose rope fixing of geotextile in the prior art and achieves the effect of pressing the geotextile tightly in the area not covered by the rope.

[0005] This application provides a fabric fixing device for wrapping bridge piers with plastic sheeting in cold environments. The device includes multiple fixing ropes on the outside of the geotextile, the geotextile being spirally wrapped around the outside of the bridge pier, a fixed seat being provided at the bottom of the outside of the bridge pier, a movable seat being provided at the top of the fixed seat, a moving component being provided on the fixed seat for driving the movable seat to move up and down, and multiple compression components being provided on the movable seat. Each compression component includes a compression block, the compression block being disposed between two of the fixing ropes and in contact with the geotextile.

[0006] Furthermore, the moving component includes: a reciprocating screw rotatably connected to the top of the fixed seat, and the movable seat threadedly connected to the reciprocating screw; multiple guide rails disposed on the top of the fixed seat, and the movable seat sleeved on the outside of the multiple guide rails; and a rotating component disposed on the fixed seat, and the rotating component driving the reciprocating screw to rotate.

[0007] Furthermore, the rotating component includes: a first bevel gear, fixedly disposed at the bottom of the first bevel gear; a second bevel gear, meshing with the outside of the first bevel gear; and a drive motor, fixedly mounted on the top of the fixed base, and the drive motor is fixedly connected to the second bevel gear.

[0008] Furthermore, the extrusion assembly includes: a connecting seat, sleeved on the outside of the reciprocating screw and the plurality of guide rails; a fixed sleeve, disposed on the side of the connecting seat near the bridge pier; and a movable rod, inserted into one side of the fixed sleeve, with one end of the movable rod fixedly connected to the extrusion block.

[0009] Furthermore, a groove is provided on one side of the fixed sleeve, and a spring is provided inside the groove. The two ends of the spring are fixedly connected to the movable rod and the inner wall of the groove.

[0010] The technical solution provided in this application has at least the following technical effects or advantages:

[0011] The reciprocating screw rotates to drive the extrusion block to move up and down between the fixed ropes. Combined with the elasticity of the spring, the extrusion block is pressed tightly against the geotextile on the outside of the bridge pier. In the areas not covered by the fixed ropes, the protruding geotextile can be pressed tightly against the bridge pier by the extrusion block, thereby making the geotextile bond with the concrete of the bridge pier more tightly, preventing the temperature difference between the concrete surface and the ambient temperature from being too large, and improving the curing effect of the concrete. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the fixing device in the embodiments of this application;

[0013] Figure 2 This is a schematic diagram of the structure of the movable seat in the embodiments of this application;

[0014] Figure 3 This is a cross-sectional structural diagram of the connector in an embodiment of this application;

[0015] In the diagram: 10, bridge pier; 20, geotextile; 30, fixing rope; 40, fixed seat; 50, movable seat; 60, moving component; 70, extrusion component; 61, reciprocating screw; 62, guide rail; 63, first bevel gear; 64, second bevel gear; 65, drive motor; 71, connecting seat; 72, fixing sleeve; 721, slide groove; 73, movable rod; 74, extrusion block; 75, spring. Detailed Implementation

[0016] This application discloses a fabric fixing device for wrapping bridge piers with plastic sheeting in cold environments. The device uses a drive motor 65 to drive a reciprocating screw 61 to rotate, thereby causing the movable seat 50, which is threaded to it, to move up and down. This causes the movable seat 50 to move the pressing block 74 up and down. The spring force of the spring 75 causes the pressing block 74 to press the geotextile 20 protruding between the fixing ropes 30, thereby preventing the temperature difference between the concrete surface and the ambient temperature from being too large and improving the concrete curing effect.

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] Please refer to Figure 1 This embodiment provides a fabric fixing device for wrapping bridge piers with plastic sheeting in cold environments. It includes multiple fixing ropes 30 on the outside of geotextile 20. The geotextile 20 is spirally wrapped around the outside of the bridge pier 10. A fixing seat 40 is provided at the bottom of the outside of the bridge pier 10, and a movable seat 50 is provided at the top of the fixing seat 40. A moving component 60 is provided on the fixing seat 40 to drive the movable seat 50 to move up and down. Multiple pressing components 70 are provided on the movable seat 50 to compress the geotextile 20 between the fixing ropes 30. The moving component 60 includes a reciprocating screw 61, guide rails 62, and a rotating component. The reciprocating screw 61 is rotatably connected to the top of the fixing seat 40, and the movable seat 50 is threadedly connected to the reciprocating screw 61. Multiple guide rails 62 are provided on the fixing seat 40. The top of the pier 10 is covered by a movable seat 50, which is fitted onto the outside of multiple guide rails 62. The reciprocating screw 61 and multiple guide rails 62 are both located between two fixed ropes 30. The rotating component is located on the fixed seat 40, and the rotating component drives the reciprocating screw 61 to rotate. The reciprocating screw 61 drives the movable seat 50, which is threaded to it, to move up and down. The multiple guide rails 62 limit the movement of the movable seat 50 to prevent the movable seat 50 from rotating with the guide rails 62. This causes the extrusion component 70 to move up and down, extruding and fixing the geotextile 20 on the outside of the bridge pier 10, so that the geotextile 20 is in close contact with the outside of the bridge pier 10, thereby preventing the temperature difference between the concrete surface and the ambient temperature from being too large and improving the concrete curing effect.

[0019] Please refer to Figure 1 , Figure 2 and Figure 3The rotating components include a first bevel gear 63, a second bevel gear 64, and a drive motor 65. The first bevel gear 63 is fixedly mounted on the bottom of the first bevel gear 64, and the second bevel gear 64 is meshed with the outer side of the first bevel gear 63. The drive motor 65 is fixedly mounted on the top of the fixed base 40 and is fixedly connected to the second bevel gear 64. The drive motor 65 mounted on the fixed base 40 drives the second bevel gear 64 to rotate, thereby causing the second bevel gear 64 to drive the first bevel gear 63 meshing with it to rotate. The first bevel gear 63 drives the reciprocating screw 61 to rotate, causing the outer movable seat 50 to move up and down, thereby driving the extrusion assembly 70 to extrude and fix the geotextile 20.

[0020] Please refer to Figure 1 , Figure 2 and Figure 3 The extrusion assembly 70 includes a connecting seat 71, a fixed sleeve 72, a movable rod 73, an extrusion block 74, and a spring 75. The extrusion block 74 is disposed between two fixed ropes 30 and contacts the geotextile 20. The connecting seat 71 is sleeved on the outside of the reciprocating screw 61 and multiple guide rails 62. The fixed sleeve 72 is disposed on the side of the connecting seat 71 near the bridge pier 10. The movable rod 73 is inserted and connected to one side of the fixed sleeve 72, and one end of the movable rod 73 is fixedly connected to the extrusion block 74. A groove 721 is provided on one side of the fixed sleeve 72, and the spring 75 is disposed in the groove 721. Inside the 21, the two ends of the spring 75 are fixedly connected to the inner wall of the movable rod 73 and the slide 721. Through the elastic force of the spring 75 inside the fixed sleeve 72, the spring 75 drives the movable rod 73 to move towards the bridge pier 10. This causes the movable rod 73 to drive the compression block 74 to press tightly against the geotextile 20 on the outside of the bridge pier 10. The compression block 74 then presses and fixes the geotextile 20 in the uncovered areas between the fixing ropes 30, allowing the geotextile 20 to better wrap the bridge pier 10, thereby preventing the temperature difference between the concrete surface and the ambient temperature from being too large and improving the concrete curing effect.

[0021] The functional principle of this application can be explained through the following methods:

[0022] In use, the geotextile 20 is spirally wrapped around the outside of the bridge pier 10, and multiple fixing ropes 30 are crosswise fixed to the outside of the geotextile 20. The fixing seat 40 and the movable seat 50 are installed on the outside of the bridge pier 10. The drive motor 65 at the bottom of the fixing seat 40 is started, so that the output shaft of the drive motor 65 drives the second bevel gear 64 to rotate. The rotation of the second bevel gear 64 drives the first bevel gear 63 to rotate, thereby driving the reciprocating screw 61 fixed thereto to rotate. The rotation of the reciprocating screw 61 causes the movable seat 50 threaded to it to move up and down. The movable seat 50 slides on multiple guide rails 62, and the guide rails 62 limit the movement of the movable seat 50. The movable seat 50 is positioned to prevent the reciprocating screw 61 from rotating. The up and down movement of the movable seat 50 causes the connecting seat 71 to move accordingly, which in turn causes the extrusion block 74 to move on the geotextile 20. The elastic force of the spring 75 inside the fixing sleeve 72 can make the movable rod 73 tend to move towards the bridge pier 10, so that the movable rod 73 drives the extrusion block 74 to be tightly attached to the geotextile 20. Thus, the extrusion block 74, between the two fixing ropes 30, drives the unfixed geotextile 20 to be tightly fixed on the bridge pier 10, thereby ensuring that the geotextile 20 is fixed on the bridge pier 10 at all times, preventing the temperature difference between the concrete surface and the ambient temperature from being too large, and improving the concrete curing effect.

[0023] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0024] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A fabric fixing device for wrapping bridge piers with plastic sheeting in cold environments, comprising multiple fixing ropes (30) on the outside of geotextile (20), wherein the geotextile (20) is spirally wrapped around the outside of the bridge pier (10), characterized in that, A fixed seat (40) is provided at the bottom of the outer side of the bridge pier (10), and a movable seat (50) is provided at the top of the fixed seat (40). A moving component (60) for driving the movable seat (50) to move up and down is provided on the fixed seat (40). A plurality of compression components (70) are provided on the movable seat (50). The compression component (70) includes a compression block (74). The compression block (74) is located between two fixed ropes (30) and is in contact with the geotextile (20).

2. The cloth fixing device for wrapping bridge piers with plastic sheeting in extremely cold environments as described in claim 1, characterized in that, The moving component (60) includes: A reciprocating lead screw (61) is rotatably connected to the top of the fixed seat (40), and the movable seat (50) is threadedly connected to the reciprocating lead screw (61); Multiple guide rails (62) are disposed on the top of the fixed base (40), and the movable base (50) is sleeved on the outside of the multiple guide rails (62); A rotating component is mounted on the fixed base (40), and the rotating component drives the reciprocating screw (61) to rotate.

3. The cloth surface fixing device for wrapping bridge piers with plastic sheeting in extremely cold environments as described in claim 2, characterized in that, The rotating component includes: The first bevel gear (63) is fixedly disposed at the bottom of the first bevel gear (63); The second bevel gear (64) is meshed with the outside of the first bevel gear (63); A drive motor (65) is fixedly installed on the top of the fixed base (40), and the drive motor (65) is fixedly connected to the second bevel gear (64).

4. The cloth surface fixing device for wrapping bridge piers with plastic sheeting in extremely cold environments as described in claim 2, characterized in that, The extrusion assembly (70) includes: A connecting seat (71) is sleeved on the outside of the reciprocating lead screw (61) and the plurality of guide rails (62); A fixing sleeve (72) is provided on the side of the connecting seat (71) near the bridge pier (10); The movable rod (73) is inserted into one side of the fixed sleeve (72), and one end of the movable rod (73) is fixedly connected to the extrusion block (74).

5. The cloth surface fixing device for wrapping bridge piers with plastic sheeting in extremely cold environments as described in claim 4, characterized in that, A groove (721) is provided on one side of the fixed sleeve (72), and a spring (75) is provided inside the groove (721). The two ends of the spring (75) are fixedly connected to the movable rod (73) and the inner wall of the groove (721).