Counter-force device for adjusting tie bar gap

By designing a reaction force device for adjusting the tie rod gap and utilizing a combination of the tie rod push structure and the force transmission structure, the construction difficulty problem when the diameter of the new hanger anchor head is larger than the existing tie rod gap is solved, and fast and accurate gap adjustment is achieved, thus avoiding damage to the tie rod and achieving the advantage of efficient and economical construction.

CN223481688UActive Publication Date: 2025-10-28WUHAN BRIDGE SPECIAL TECH CO LTD CHINA RAILWAY MAJOR BRIDGE ENG BUREAU +1
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Patent Information

Application Number
CN202422980171.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-10-28
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

During the replacement, maintenance and renovation of the suspenders of a tied arch bridge, the diameter of the anchor head of the new suspender is larger than the gap between the existing ties, which makes manual or mechanical pulling to expand the gap time-consuming and labor-intensive, and the pulling force cannot be controlled, which can easily cause damage to the ties.

Method used

A reaction force device is designed, which includes a tie rod pushing structure, a force transmission structure and an adjustment structure. The relative distance between the two sides of the force transmission structure is adjusted by the adjustment structure, which drives the tie rod body to move to adjust the gap, and the rope body is used to control the adjustment process.

Benefits of technology

It realizes the rapid and precise adjustment of tie rod clearance, meets construction requirements, saves manpower and material resources, avoids damage to the tie rods, has a simple structure, is easy to install, and is economical and efficient.

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Abstract

The utility model relates to a counter-force device for adjusting a tie bar gap, the counter-force device comprises two tie bar pushing structures, a force transmission structure and an adjusting structure, the two tie bar pushing structures are used for being connected with tie bar bodies on the two sides of the tie bar gap respectively, and the tie bar pushing structures are located in the tie bar gap; the force transmission structure is arranged in the tie bar gap and is arranged between the two tie bar pushing structures, and the relative distance between the two sides of the force transmission structure is adjustable; the adjusting structure is movably connected with the force transmission structure and used for adjusting the relative distance between the two sides of the force transmission structure. According to the utility model, the tie bar pushing structure is connected with the tie bar bodies, and the tie bar bodies can be driven to move by adjusting the relative distance between the two sides of the force transmission structure through the adjusting structure, so that the tie bar gap between the two tie bar bodies can be adjusted, the tie bar gap can be quickly adjusted, and the construction requirements can be met.
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Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to a reaction device for adjusting tie rod clearance. Background Technology

[0002] During the replacement, repair, and renovation of tie-arch bridges, due to advancements in materials science, the diameter of the new tie rod anchor head is often larger than the existing tie rod gap, making it impossible for the tie rods to pass through. Currently, the gap is typically widened by manually or mechanically pulling on both sides of the tie rod to meet construction requirements. This method is time-consuming and labor-intensive, and the tension cannot be controlled, easily causing damage to the tie rod. Utility Model Content

[0003] This application provides a reaction force device for adjusting the tie rod gap, which can solve the problem in related technologies where, when the diameter of the new hanger anchor head is larger than the existing tie rod gap, the gap is widened by manually or mechanically pulling on both sides of the tie rod to meet construction requirements. This method is time-consuming and labor-intensive, and the tension cannot be controlled, which can easily damage the tie rod.

[0004] This application provides a reaction force device for adjusting tie rod clearance, comprising: two sets of tie rod pushing structures, a force transmission structure, and an adjustment structure. The two sets of tie rod pushing structures are respectively used to connect to the tie rod bodies on both sides of the tie rod clearance, and the tie rod pushing structures are located inside the tie rod clearance. The force transmission structure is disposed inside the tie rod clearance and between the two sets of tie rod pushing structures, and the relative distance between the two sides of the force transmission structure is adjustable. The adjustment structure is movably connected to the force transmission structure and is used to adjust the relative distance between the two sides of the force transmission structure.

[0005] In one embodiment, the tie rod pushing structure includes: a support member and a fitting member, wherein the support member is connected to the force transmission structure; one end of the fitting member is connected to the support member, and the other end is used to fit against the tie rod body.

[0006] In one embodiment, the tie rod pushing structure further includes a pad layer disposed on the surface of the mating member.

[0007] In one embodiment, the force transmission structure includes: two force transmission components and two adjusting bodies, wherein the two force transmission components are respectively fixed on two sets of tie rod pushing structures, and the distance between the two force transmission components is adjustable; the two adjusting bodies are nested between each other, and the two adjusting bodies are respectively fixed on the two force transmission components.

[0008] In one embodiment, the adjustment structure includes a rope body connected to the adjustment body.

[0009] In one embodiment, the adjusting body is provided with an anchor point, and the rope body is connected to the anchor point.

[0010] In one embodiment, the force transmission structure further includes a pulley component, which is fixed to the adjusting body.

[0011] In one embodiment, one end of the rope body is fixed to one of the adjusting bodies, and the other end crosses through pulleys on the two adjusting bodies.

[0012] In one embodiment, the regulating body has a U-shaped structure, with one regulating body extending into the interior of another regulating body.

[0013] In one embodiment, one of the adjusting bodies has a roller on its surface, and the other adjusting body has a groove inside its interior.

[0014] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0015] This application provides a reaction force device for adjusting the tie rod gap. The tie rod pushing structure is connected to the tie rod body. By adjusting the relative distance between the two sides of the force transmission structure, the tie rod body can be moved to adjust the tie rod gap between the two tie rod bodies. The tie rod gap can be quickly adjusted to meet construction requirements. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the reaction device structure provided in the embodiments of this application;

[0018] Figure 2 for Figure 1 Diagram at point AA;

[0019] Figure 3 This is a schematic diagram of the reaction device structure after adjustment provided in the embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the tie rod pushing structure provided in an embodiment of this application.

[0021] In the diagram: 1. Tie rod pushing structure; 11. Pad layer; 12. Support component; 13. Fitting component;

[0022] 2. Force transmission structure; 21. Adjusting body; 22. Pulley components; 23. Force transmission components;

[0023] 3. Adjustment structure; 31. Rope body; 32. Anchor point;

[0024] 4. Tie rod body. Detailed Implementation

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] This application provides a reaction force device for adjusting the tie rod gap, which can solve the problem in related technologies where, when the diameter of the new hanger anchor head is larger than the existing tie rod gap, the gap is widened by manually or mechanically pulling on both sides of the tie rod to meet construction requirements. This method is time-consuming and labor-intensive, and the tension cannot be controlled, which can easily damage the tie rod.

[0027] See Figures 1 to 4 This application provides a reaction force device for adjusting the tie rod gap, comprising: two sets of tie rod pushing structures 1, a force transmission structure 2, and an adjustment structure 3. The two sets of tie rod pushing structures 1 are respectively used to connect to the tie rod bodies 4 on both sides of the tie rod gap, and the tie rod pushing structures 1 are located inside the tie rod gap; the force transmission structure 2 is disposed inside the tie rod gap and between the two sets of tie rod pushing structures 1, and the relative distance between the two sides of the force transmission structure 2 is adjustable; the adjustment structure 3 is movably connected to the force transmission structure 2 and is used to adjust the relative distance between the two sides of the force transmission structure 2.

[0028] In this application, the tie rod pushing structure 1 is connected to the tie rod body 4. The relative distance between the two sides of the force transmission structure 2 can be adjusted by adjusting the structure 3, which can drive the tie rod body 4 to move, thereby adjusting the tie rod gap between the two tie rod bodies 4. The tie rod gap can be quickly adjusted to meet the construction requirements.

[0029] In this configuration, two sets of tie rod pushing structures 1 are positioned within a tie rod gap, with each set of tie rod pushing structures 1 connected to the tie rod body 4 on one side of the tie rod gap. A force transmission structure 2 is fixedly connected to the tie rod pushing structure 1 on the side closest to the tie rod gap. When the adjustment structure 3 is used to adjust the relative distance between the two sides of the force transmission structure 2, it can move the tie rod pushing structure 1, thereby moving the tie rod body 4 and changing the tie rod gap.

[0030] Based on the above embodiments, in this embodiment, the tie rod pushing structure 1 includes: a support member 12 and a fitting member 13. The support member 12 is connected to the force transmission structure 2; one end of the fitting member 13 is connected to the support member 12, and the other end is used to fit against the tie rod body 4.

[0031] Specifically, each set of tie rod pushing structures 1 includes multiple tie rod pushing structures 1, and the number of tie rod pushing structures 1 is equal to the number of tie rod bodies 4.

[0032] The support member 12 needs to have sufficient strength and rigidity and be tightly connected to the adjustment structure 3, so as to smoothly transfer the force between the force transmission structure 2 and the fitting member 13 without causing large deformation. The specific structural form, connection method and material are not limited. The shape of the fitting member 13 is fitted to the surface of the tie rod body 4 and is tightly connected to the support member 12. Therefore, the shape of the fitting member 13 needs to be adapted to the shape of the tie rod body 4, and it needs to have a certain strength and rigidity to prevent large deformation during use. The specific material and the connection method with the support member 12 are not limited.

[0033] Furthermore, the tie rod pushing structure 1 further includes a pad 11, which is disposed on the surface of the fitting member 13. The pad 11 is located on the side of the fitting member 13 that fits against the tie rod body 4, that is, it is tightly connected to the concave surface of the fitting member 13. The specific connection method between the pad 11 and the fitting member 13 is not limited, and can be adhesive, screwed, etc. The material of the pad 11 needs to have sufficient elasticity to protect the tie rod body 4 from damage. In this embodiment, the specific material is not limited.

[0034] Based on the above embodiments, in this embodiment, the force transmission structure 2 includes: two force transmission components 23 and two adjusting bodies 21. The two force transmission components 23 are respectively fixed on two sets of tie rod pushing structures 1, and the distance between the two force transmission components 23 is adjustable. The two adjusting bodies 21 are nested between each other, and the two adjusting bodies 21 are respectively fixed on the two force transmission components 23.

[0035] Specifically, there are two force transmission components 23, which are fixedly connected to two sets of tie rod pushing structures 1 respectively, and the force transmission components 23 are set within the tie rod gap. The force transmission components 23 need to have sufficient strength and rigidity and be tightly connected to the tie rod pushing structure 1, so as to smoothly complete the force transmission between the adjusting structure 3 and the tie rod pushing structure 1 without producing large deformation. The specific structural form, material and connection method of the force transmission component 23 with the tie rod pushing structure 1 and the adjusting body 21 are not limited.

[0036] Furthermore, the adjustment body 21 is configured as a U-shaped structure, with one adjustment body 21 extending into the interior of the other adjustment body 21. To facilitate the adjustment of the adjustment body 21, a roller is provided on the surface of one adjustment body 21, and a sliding groove is provided inside the other adjustment body 21.

[0037] In other words, each adjusting body 21 includes a vertical rod and two horizontal rods. The vertical rod is fixedly connected to the force transmission component 23. A roller is provided on the surface of the horizontal rod on one adjusting body 21, and a groove is provided in the middle of the horizontal rod of the other adjusting body 21, so that the horizontal rod of one adjusting body 21 can pass through the groove. When the adjusting body 21 is adjusted, the roller slides inside the groove.

[0038] Based on the above embodiments, in this embodiment, the adjustment structure 3 includes: a rope body 31, which is connected to the adjustment body 21.

[0039] In this embodiment, when the rope body 31 is fixedly connected to the force transmission structure 2 on the side near the tie rod gap, the distance between the two force transmission components 23 can be shortened by pulling the rope body 31; when the rope body 31 is fixedly connected to the force transmission structure 2 on the side away from the tie rod gap, the distance between the two force transmission components 23 can be increased by pulling the rope body 31.

[0040] Therefore, it is necessary to set up two sets of rope bodies 31. One set of rope bodies 31 is fixedly connected to the force transmission structure 2 on the side near the tie rod gap, and the other set of rope bodies 31 is fixedly connected to the force transmission structure 2 on the side away from the tie rod gap.

[0041] Furthermore, the adjusting body 21 is provided with an anchor point 32, which is fixed to the adjusting body 21, and the rope body 31 is connected to the anchor point 32.

[0042] The force transmission structure 2 further includes a pulley component 22, which is fixed to the adjusting body 21. (See also...) Figure 1 As shown, each adjusting body 21 is provided with multiple pulley components 22. When the rope body 31 is connected to the pulley components 22, one end of the rope body 31 is fixed to one of the adjusting bodies 21, and the other end passes through the pulley components 22 on the two adjusting bodies 21.

[0043] Therefore, in this application, several tie rod pushing structures 1 are located on the side of the tie rod body 4. The tie rod body 4 is adjusted by the mutually nested adjusting bodies 21 in the force transmission structure 2 through the pulling rope body 31. The tie rod gap is adjusted by controlling the stroke of the rope body 31.

[0044] The tie rod gap in this application is adjusted by the rope body 31, which is convenient for construction and saves manpower and material resources; the device has a simple structure and is easy to install; it has high adjustment accuracy and strong controllability; the device consumes little material and can be reused as a whole, resulting in high economic benefits; at the same time, it will not cause damage to the existing tie rod structure during adjustment.

[0045] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0046] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0047] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A reaction force device for adjusting tie rod clearance, characterized in that, It includes: Two sets of tie rod pushing structures (1) are used to connect with the tie rod bodies (4) on both sides of the tie rod gap, and the tie rod pushing structures (1) are located inside the tie rod gap; Force transmission structure (2), the force transmission structure (2) is set inside the tie rod gap and between the two sets of tie rod pushing structures (1), the relative distance between the two sides of the force transmission structure (2) is adjustable; An adjustment structure (3) is movably connected to the force transmission structure (2) and is used to adjust the relative distance between the two sides of the force transmission structure (2).

2. The reaction device for adjusting the tie rod clearance as described in claim 1, characterized in that, The tie rod pushing structure (1) includes: Support member (12), which is connected to force transmission structure (2); The fitting component (13) is connected at one end to the support component (12) and at the other end to the tie rod body (4).

3. The reaction device for adjusting the tie rod clearance as described in claim 2, characterized in that: The tie rod pushing structure (1) further includes a pad (11), which is disposed on the surface of the fitting (13).

4. The reaction device for adjusting the tie rod clearance as described in claim 1, characterized in that, The force transmission structure (2) includes: Two force transmission components (23) are fixed on two sets of tie rod pushing structures (1) respectively, and the distance between the two force transmission components (23) is adjustable; Two adjusting bodies (21) are nested between each other, and the two adjusting bodies (21) are respectively fixed on two force transmission components (23).

5. The reaction device for adjusting the tie rod clearance as described in claim 4, characterized in that, The adjustment structure (3) includes: The rope body (31) is connected to the adjusting body (21).

6. The reaction device for adjusting the tie rod clearance as described in claim 5, characterized in that: An anchor point (32) is provided on the adjusting body (21), and the rope body (31) is connected to the anchor point (32).

7. The reaction device for adjusting the tie rod clearance as described in claim 5, characterized in that: The force transmission structure (2) further includes a pulley (22), which is fixed on the adjusting body (21).

8. The reaction device for adjusting the tie rod clearance as described in claim 7, characterized in that: One end of the rope body (31) is fixed to one of the adjusting bodies (21), and the other end passes through the pulleys (22) on the two adjusting bodies (21).

9. The reaction device for adjusting the tie rod clearance as described in claim 4, characterized in that: The regulating body (21) has a U-shaped structure, with one regulating body (21) extending into the interior of the other regulating body (21).

10. The reaction device for adjusting the tie rod clearance as described in claim 9, characterized in that: One of the adjustment bodies (21) has rollers on its surface, and the other adjustment body (21) has a groove inside.