A telescopic joint structure with adjustable telescopic distance
Patent Information
- Application Number
- CN202522278977.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0003]伸缩缝结构在进行伸缩距离可调节时，由于伸缩调节后内部难以形成牢牢的混凝土填充力，这就导致伸缩距离调节完毕后，桥梁的伸缩板难以在调节后稳定进行嵌入固定，导致伸缩调节的稳定性较差
1、本实用新型采用调节浇筑组件，拉动两个缝隙板，并且保持调节板不动，两个缝隙板之间的距离变大，缝隙板带动导向柱移动，导向柱沿着调节板的内部滑动，适用于不同尺寸的桥梁伸缩缝空隙，通过混凝土砂浆注入到注入孔内，由注入槽灌入到调节板内部的锯齿槽中，两个缝隙板之间的伸缩空隙可以进行距离调节，距离调节后稳定实现稳定凝固调节；
Smart Images
Figure CN224884559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of expansion joint technology, and more specifically, to an expansion joint structure with adjustable expansion distance. Background Technology
[0002] In the construction of large bridges, minor errors may occur during the prefabrication and installation of the beams, resulting in discrepancies between the reserved expansion joint spacing and the design value after the bridge is actually closed. Adjustable structures allow the expansion joint flat structure to be inserted into the designated gaps, providing support for the bridge deck.
[0003] When the expansion joint structure has an adjustable expansion distance, it is difficult to form a firm concrete filling force inside after the expansion adjustment. This makes it difficult for the bridge expansion plate to be stably embedded and fixed after the expansion distance is adjusted, resulting in poor stability of the expansion adjustment. Utility Model Content
[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides the following technical solution: a telescopic joint structure with adjustable telescopic distance, comprising two gap plates, an adjusting plate slidably installed between the two gap plates, and an adjusting casting assembly provided inside the adjusting plate, the adjusting casting assembly comprising: Multiple guide posts are slidably installed on the inner wall of the adjusting plate. The multiple guide posts are fixedly connected to the slot plate. A serrated groove is opened on one side of each guide post, and the serrated groove is used to fill concrete mortar. An injection groove is formed on one side of the serrated groove. Each of the slot plates has an injection hole at its top. An arc-shaped surface is fixedly connected to the upper surface of the slot plate near one of its corners.
[0005] In a preferred embodiment, a plurality of guide posts are arranged at equal intervals from front to back, and the outer wall of each guide post is a smooth surface.
[0006] In a preferred embodiment, the two sawtooth grooves are symmetrically arranged about the middle of the adjusting plate, and the inner wall of the sawtooth grooves is a smooth surface.
[0007] In a preferred embodiment, the injection groove and the sawtooth groove are connected, and the inner wall of the slot plate is a smooth surface.
[0008] In a preferred embodiment, multiple pre-embedded posts are fixedly connected to opposite sides of the two slot plates, and a hook is fixedly connected to one end of each pre-embedded post.
[0009] In a preferred embodiment, a plurality of the pre-embedded columns are arranged at equal intervals from front to back, and a plurality of the hooks are arranged at equal intervals from front to back.
[0010] In a preferred embodiment, an embedding block is provided above each of the injection holes; The top of the embedded block is fixedly connected to an insert, and the top of the insert is fixed with a positioning post at the same center. The positioning post is used to insert into the inner wall of the injection hole. A plug is fixedly installed on the upper surface of the positioning post, and the plug presses against the upper surface of the slot plate.
[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model adopts an adjustable pouring component. Pulling two gap plates while keeping the adjustable plates stationary increases the distance between the two gap plates. The gap plates drive the guide column to move, and the guide column slides along the inside of the adjustable plate. It is suitable for bridge expansion joint gaps of different sizes. Concrete mortar is injected into the injection hole and poured into the sawtooth groove inside the adjustable plate through the injection groove. The expansion gap between the two gap plates can be adjusted. After the distance is adjusted, stable solidification adjustment is achieved. 2. This utility model moves the plug downwards, causing the positioning pin to move downwards, and the embedding block is inserted into the slit plate inside the injection hole. The plug presses against the upper surface of the slit plate, stably sealing the injection hole. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of the adjustable expansion joint structure of this utility model.
[0013] Figure 2 This is a schematic diagram of the vertical cross-section of the adjustable expansion joint structure of this utility model.
[0014] Figure 3 This is a partial structural diagram of the vertical section cut at the connection between the slotted plate and the arc-shaped surface of this utility model.
[0015] Figure 4 This is a schematic diagram of the embedded block and its partial structure at the connection point of this utility model.
[0016] The attached diagram is labeled as follows: 1. Gap plate; 2. Adjustment plate; 3. Guide post; 4. Serrated groove; 5. Injection groove; 6. Injection hole; 7. Arc-shaped surface; 8. Embedded post; 9. Hook; 10. Embedded block; 11. Inserted in; 12. Positioning post; 13. Plug. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] As attached Figure 1 - Appendix Figure 4 The diagram shows an adjustable expansion joint structure. This adjustable expansion joint structure is equipped with an adjustable pouring component. The adjustable pouring component can be adapted to bridge expansion joint gaps of different sizes. Concrete mortar is injected into the injection hole 6 and poured into the sawtooth groove 4 inside the adjusting plate 2 through the injection groove 5. The expansion gap between the two gap plates 1 can be adjusted. After the distance is adjusted, stable solidification adjustment is achieved. The specific structural settings of the adjustable pouring component are as follows.
[0019] In this embodiment, as shown in the appendix Figure 1 - Appendix Figure 3 As shown, the adjusting plate 2 has an internal adjusting pouring assembly, which includes: multiple guide columns 3, all slidably installed on the inner wall of the adjusting plate 2, and all guide columns 3 are fixedly connected to the slot plate 1. A serrated groove 4 is formed on one side of each guide column 3 for filling concrete mortar; an injection groove 5 is formed on one side of the serrated groove 4; an injection hole 6 is formed at the top of each slot plate 1; and an arc-shaped surface 7 is fixedly connected to the upper surface of the slot plate 1 near one of its corners. The multiple guide columns 3 are arranged equidistantly from front to back, and the outer wall of each guide column 3 is a smooth surface. Two serrated grooves 4 are symmetrically arranged about the middle of the adjusting plate 2, and the inner wall of the serrated grooves 4 is a smooth surface. The injection groove 5 is connected to the serrated grooves 4, and the inner wall of the slot plate 1 is a smooth surface.
[0020] In this embodiment, as shown in the appendix Figure 3 As shown, multiple embedded columns 8 are fixedly connected to opposite sides of the two gap plates 1. Each embedded column 8 has a hook 9 fixedly connected to one end. The embedded columns 8 and hooks 9 are arranged equidistantly from front to back. This allows the gap plates 1 to move the embedded columns 8, which in turn move the hooks 9. The embedded columns 8 and hooks 9 are hooked onto the side reinforcement bars, and after they are fixed, they are cast and fixed to the bridge reinforcement bars.
[0021] In use, this adjustable expansion joint structure works by pulling two gap plates 1 while keeping the adjusting plate 2 stationary. The two gap plates 1 slide along the outer wall of the adjusting plate 2, increasing the distance between them and the exposed area of the upper surface of the adjusting plate 2. Simultaneously, the gap plates 1 move the guide column 3, which slides along the inside of the adjusting plate 2 and along the inner wall of the serrated groove 4. This allows for adjustment of the gap between the two gap plates 1, making it suitable for bridge expansion joints of different sizes. Furthermore, the gap plates 1 move the embedded column 8, which in turn moves the hook body 9. The embedded column 8 and hook body 9 are hooked onto the side reinforcing bars, and the hook body 9 and embedded column 8 are secured to other reinforcing bars using steel wire.
[0022] Concrete mortar is injected into the injection hole 6, and then into the injection groove 5 inside the slot plate 1. The mortar is then poured into the sawtooth groove 4 inside the adjustment plate 2. After it solidifies, the slot plate 1 and the sawtooth groove 4 are firmly bonded together by the concrete mortar. The expansion gap between the two slot plates 1 can be adjusted, and the adjustment is stable after the distance is adjusted.
[0023] In this embodiment, as shown in the appendix Figure 4 As shown, each injection hole 6 is provided with an embedding block 10 above it; the top of the embedding block 10 is fixedly connected to an insert 11, and the top of the insert 11 is fixed with a positioning post 12 at the same center. The positioning post 12 is used to insert into the inner wall of the injection hole 6. A plug cap 13 is fixedly installed on the upper surface of the positioning post 12, and the plug cap 13 covers the upper surface of the slot plate 1.
[0024] When using this adjustable expansion joint structure, the plug 13 is moved downwards, causing the positioning pin 12 to move downwards. The positioning pin 12 then causes the insert 11 to move downwards, and the embedding block 10 is inserted into the gap plate 1 inside the injection hole 6. At the same time, the positioning pin 12 is inserted into the injection hole 6, and the plug 13 presses against the upper surface of the gap plate 1, thereby sealing the injection hole 6 and stably sealing it.
[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An adjustable expansion joint structure, comprising two joint plates (1), wherein an adjusting plate (2) is slidably installed between the two joint plates (1), characterized in that: The regulating plate (2) is provided with an adjusting pouring assembly, which includes: Multiple guide posts (3) are slidably installed on the inner wall of the adjusting plate (2). The multiple guide posts (3) are fixedly connected to the slot plate (1). A sawtooth groove (4) is provided on one side of the guide post (3). The sawtooth groove (4) is used to fill concrete mortar. An injection groove (5) is opened on one side of the sawtooth groove (4), and an injection hole (6) is opened at the top of each of the slot plates (1). An arc-shaped surface (7) is fixedly connected to the upper surface of the slot plate (1) and near one of its corners.
2. The expansion joint structure with adjustable expansion distance according to claim 1, characterized in that: Multiple guide posts (3) are arranged at equal intervals from front to back, and the outer wall of each guide post (3) is a smooth surface.
3. The expansion joint structure with adjustable expansion distance according to claim 1, characterized in that: The two sawtooth grooves (4) are symmetrically arranged about the middle of the adjusting plate (2), and the inner wall of the sawtooth grooves (4) is a smooth surface.
4. The expansion joint structure with adjustable expansion distance according to claim 1, characterized in that: The injection groove (5) is connected to the sawtooth groove (4), and the inner wall of the slot plate (1) is a smooth surface.
5. The expansion joint structure with adjustable expansion distance according to claim 1, characterized in that: Multiple embedded columns (8) are fixedly connected to opposite sides of the two slot plates (1), and a hook (9) is fixedly connected to one end of each embedded column (8).
6. The expansion joint structure with adjustable expansion distance according to claim 5, characterized in that: Multiple pre-embedded columns (8) are arranged at equal intervals from front to back, and multiple hooks (9) are arranged at equal intervals from front to back.
7. The expansion joint structure with adjustable expansion distance according to claim 1, characterized in that: An embedding block (10) is provided above each of the injection holes (6); The top end of the embedded block (10) is fixedly connected to an insert (11), and the top end of the insert (11) is fixed with a positioning post (12) at the same center. The positioning post (12) is used to insert into the inner wall of the injection hole (6). A plug (13) is fixedly installed on the upper surface of the positioning post (12), and the plug (13) covers and presses on the upper surface of the slot plate (1).