Glass fiber reinforced plastic connecting structure with controllable spacing
By setting a connecting seat and slide rail slider combination on the fiberglass plate, the problems of uneven connection spacing and wear of fiberglass modules are solved, achieving precise control of fiberglass plate spacing and wear prevention, and simplifying the manufacturing and assembly process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TSINGDAO KAMPION HIGH SPEED RAILWAY TECH CORP
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the spacing between fiberglass modules cannot be precisely controlled during connection, resulting in uneven gaps that are prone to wear due to vibration, and additional structures such as shims are required for adjustment.
The first and second fiberglass plates are connected to connecting seats with strip-shaped holes. The connection is made by bolts and by using a combination of slide rail and slider square nut to achieve controllable adjustment of the spacing between the fiberglass plates and avoid direct contact wear.
It achieves precise control of the spacing between fiberglass sheets, avoids wear, eliminates the need for traditional gaskets, and simplifies the manufacturing and assembly process.
Smart Images

Figure CN224245192U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fiberglass connection technology, and in particular to a fiberglass connection structure with controllable spacing. Background Technology
[0002] The subway headgear is made up of multiple fiberglass modules. The customer requires that the gaps between the fiberglass modules be uniform, the connections be tight, the joints be easy to maintain, and the modules be easy to manufacture and assemble.
[0003] Traditionally, the common method for connecting fiberglass reinforced plastic (FRP) structures involves attaching a reinforcing plate with an elongated oval hole to the back of each FRP structure, with the two holes intersecting in a cross shape, and then connecting them with bolts. This method cannot guarantee uniform gaps around the FRP structures, and adjusting the gaps by adding shims is highly susceptible to wear from long-term impact and vibration. In other words, the existing technology cannot control the spacing between two FRP structures, requiring additional structural elements such as shims for auxiliary control. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this application is to provide a fiberglass connection structure with controllable spacing. It includes a first fiberglass plate and a second fiberglass plate, both of which have strip-shaped holes. A first connecting seat is fixedly connected to the strip-shaped hole of the first fiberglass plate, and a second connecting seat is fixedly connected to the strip-shaped hole of the second fiberglass plate. The first and second connecting seats are connected by bolts, with the bolts perpendicular to the surface of the first fiberglass plate. The connecting ends of the first and second connecting seats protrude from the first fiberglass plate, and the connecting ends of the second and first connecting seats protrude from the second fiberglass plate.
[0005] Preferably, the first connecting seat is provided with a first clamping plate, which is fixedly connected to the side of the first fiberglass plate away from the second fiberglass plate.
[0006] Preferably, the first clamping plate is bonded to the first fiberglass plate.
[0007] Preferably, the second connecting seat is provided with a second clamping plate, which is fixedly connected to the side of the second fiberglass plate away from the first fiberglass plate.
[0008] Preferably, the second clamping plate is bonded to the second fiberglass plate.
[0009] Preferably, the first connecting seat has a strip-shaped hole corresponding to the strip-shaped hole of the first fiberglass plate, and the end of the first connecting seat away from the first fiberglass plate is provided with a first slide rail. The extension direction of the first slide rail is the same as the extension direction of the strip-shaped hole of the first fiberglass plate. The first slide rail is slidably connected with a first slider square nut, and the first slider square nut is provided with an internal thread that engages with a bolt.
[0010] Preferably, the second connecting seat has a strip-shaped hole corresponding to the strip-shaped hole of the second fiberglass plate, and a second slide rail is provided at the end of the second connecting seat away from the second fiberglass plate. The extension direction of the second slide rail is the same as the extension direction of the strip-shaped hole of the second fiberglass plate. The second slide rail is slidably connected to a second slider square nut, and the second slider square nut is provided with an internal thread that engages with a bolt.
[0011] In summary, this application includes the following beneficial technical effects:
[0012] 1. By using the first connecting seat and the second connecting seat instead of the original reinforcing plate, the contact between the bolt and the edge of the strip hole of the first fiberglass plate and the second fiberglass plate is avoided, and the wear of the first fiberglass plate and the second fiberglass plate by the bolt is prevented.
[0013] 2. By extending the length of the connecting end of the first connecting seat beyond the length of the first fiberglass plate, and extending the length of the connecting end of the second connecting seat beyond the length of the second fiberglass plate, the gap distance between the first and second fiberglass plates is controlled, eliminating the need for gaskets used to control the gap in traditional structures.
[0014] 3. Both the first connecting seat and the second connecting seat are equipped with slide rails, and the slide rails are slidably connected with slider square nuts. The slider square nuts are threadedly connected to bolts. Through the sliding connection between the slide rails and the slider square nuts, it is convenient to change the connection position between the first fiberglass plate and the second fiberglass plate. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present invention;
[0016] Figure 2 This is the front view of this utility model;
[0017] Figure 3 This is an exploded view of the three-dimensional view of this utility model.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. First fiberglass plate; 2. Second fiberglass plate; 3. First connecting seat; 301. First clamping plate; 302. First slide rail; 303. First slider square nut; 4. Second connecting seat; 401. Second clamping plate; 402. Second slide rail; 403. Second slider square nut; 5. Bolt. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] The following is in conjunction with the appendix Figure 1-3 This application provides a further detailed description. An embodiment of this application discloses a fiberglass connection structure with controllable spacing. It includes a first fiberglass plate 1 and a second fiberglass plate 2, both of which have strip-shaped holes. A first connecting seat 3 is fixedly connected to the strip-shaped hole of the first fiberglass plate 1, and a second connecting seat 4 is fixedly connected to the strip-shaped hole of the second fiberglass plate 2. The first connecting seat 3 and the second connecting seat 4 are connected by bolts 5. Both the first connecting seat 3 and the second connecting seat 4 have threaded holes corresponding to the bolts 5, and both are connected to the bolts 5 through these threaded holes. Alternatively, a nut can be provided at the end of the first connecting seat 3 away from the second connecting seat 4, and a nut can be provided at the end of the second connecting seat 4 away from the first connecting seat 3. The bolts 5 passing through the first connecting seat 3 and the second connecting seat 4 are connected by two nuts, so that the first connecting seat 3 and the second connecting seat 4 are clamped and fixed by the nuts at both ends of the bolts 5. Bolt 5 is perpendicular to the surface of the first fiberglass plate 1, based on the fact that the surface of the first fiberglass plate 1 is parallel to the surface of the second fiberglass plate 2 in the connected state, and bolt 5 is simultaneously perpendicular to the surfaces of the first fiberglass plate 1 and the second fiberglass plate 2. The connecting end of the first connecting seat 3 and the second connecting seat 4 protrudes from the first fiberglass plate 1, and the connecting end of the second connecting seat 4 and the first connecting seat 3 protrudes from the second fiberglass plate 2. By using the first connecting seat 3 and the second connecting seat 4 instead of the original reinforcing plate, and with the connecting ends of the first connecting seat 3 and the second connecting seat 4 respectively passing through the strip-shaped holes of the first fiberglass plate 1 and the second fiberglass plate 2, bolt 5 is surrounded by the first connecting seat 3 and the second connecting seat 4, avoiding possible contact between bolt 5 and the edge of the strip-shaped hole of the first fiberglass plate 1 or the second fiberglass plate 2, and preventing possible wear of the first fiberglass plate 1 and the second fiberglass plate 2 by bolt 5. The gap between the first fiberglass plate 1 and the second fiberglass plate 2 is controlled by the length of the connecting end of the first connecting seat 3 protruding beyond the length of the first fiberglass plate 1 and the length of the connecting end of the second connecting seat 4 protruding beyond the length of the second fiberglass plate 2, thus eliminating the need for the gasket used to control the gap in the traditional structure.
[0022] The first connecting seat 3 is provided with a first clamping plate 301, which is fixedly connected to the side of the first fiberglass plate 1 away from the second fiberglass plate 2. This enhances the fixed connection between the first connecting seat 3 and the first fiberglass plate 1, and also reduces the local stress on the first fiberglass plate 1 after the bolts 5 are connected by the surface of the first clamping plate 301. Specifically, the first clamping plate 301 is bonded to the first fiberglass plate 1.
[0023] Furthermore, the second connecting seat 4 is provided with a second clamping plate 401, which is fixedly connected to the side of the second fiberglass plate 2 away from the first fiberglass plate 1. This enhances the fixed connection effect between the second connecting seat 4 and the second fiberglass plate 2, and also reduces the local stress on the second fiberglass plate 2 after the bolt 5 connection by the plate surface of the second clamping plate 401. Specifically, the second clamping plate 401 is bonded to the second fiberglass plate 2.
[0024] Furthermore, the first connecting seat 3 has a strip-shaped hole corresponding to the strip-shaped hole of the first fiberglass plate 1, thus expanding the range of the hole in the first connecting seat 3. A first slide rail 302 is provided at the end of the first connecting seat 3 furthest from the first fiberglass plate 1. The extension direction of the first slide rail 302 is the same as the extension direction of the strip-shaped hole in the first fiberglass plate 1. A first sliding block nut 303 is slidably connected to the first slide rail 302. The first sliding block nut 303 has an internal thread that mates with the bolt 5. This changes the connection between the bolt 5, which was originally connected to the first connecting seat 3, and the bolt 5, which was originally connected to the first connecting seat 3, and the second fiberglass plate 2, and the connection point between the first fiberglass plate 1 and the second fiberglass plate 2, relative to the first fiberglass plate 1, by moving the first sliding block nut 303 along the extension direction of the first slide rail 302.
[0025] Furthermore, the second connecting seat 4 has a strip-shaped hole corresponding to the strip-shaped hole of the second fiberglass plate 2, thus expanding the hole range of the second connecting seat 4. A second slide rail 402 is provided at the end of the second connecting seat 4 away from the second fiberglass plate 2. The extension direction of the second slide rail 402 is the same as the extension direction of the strip-shaped hole of the second fiberglass plate 2. A second sliding block nut 403 is slidably connected to the second slide rail 402. The second sliding block nut 403 has an internal thread that mates with the bolt 5. This changes the connection between the bolt 5, originally connected to the second connecting seat 4, and the bolt 5, which was originally connected to the second connecting seat 4, and is now connected to the second sliding block nut 403. By moving the second sliding block nut 403 along the extension direction of the second slide rail 402, the position of the bolt 5 in the strip-shaped hole of the second fiberglass plate 2 is changed, thereby changing the position of the connection point between the second fiberglass plate 2 and the first fiberglass plate 1 relative to the second fiberglass plate 2. Furthermore, the first slider square nut 303 and the second slider square nut can also be without threaded holes, only through holes, and the first slider square nut 303 and the second slider square nut 403 can be clamped in the middle by setting nuts at both ends of the bolt 5 as described above. By clamping the nuts at both ends of the bolt 5, the friction between the first slider square nut 303 and the first slide rail 302, as well as the friction between the second slider square nut 403 and the second slide rail 402, are enhanced, thereby achieving the effect of fixing.
[0026] The first slide rail 302 and the first slider square nut 303 in the first connecting seat 3, and the second slide rail 402 and the second slider square nut 403 in the second connecting seat 4, can be used simultaneously or individually in the first fiberglass plate 1 or the second fiberglass plate 2. When both the first connecting seat 3 and the second connecting seat 4 use slide rails and slider square nuts, it is possible to adjust the position of the slider square nut to allow the connection point between the first fiberglass plate 1 and the second fiberglass plate 2 to move arbitrarily in four directions (up, down, left, and right) to select a suitable connection position when the strip holes of the first fiberglass plate 1 and the second fiberglass plate 2 intersect.
[0027] Working principle: Select the appropriate length of the first connecting seat 3 and the second connecting seat 4 according to the required gap size. Fix the first connecting seat 3 to the strip-shaped hole of the first fiberglass plate 1, and fix the second connecting seat 4 to the strip-shaped hole of the second fiberglass plate 2. Make contact between the connecting end of the first connecting seat 3 and the connecting end of the second connecting seat 4, and insert the bolt 5 to fix them. This allows the first fiberglass plate 1 and the second fiberglass plate 2 to be fixedly connected while ensuring the gap between them is determined.
[0028] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.
[0029] In this application, unless otherwise expressly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0030] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this application, and all such substitutions or changes should fall within the protection scope of the appended claims.
Claims
1. A fiberglass connection structure with controllable spacing, comprising a first fiberglass plate (1) and a second fiberglass plate (2), both the first fiberglass plate (1) and the second fiberglass plate (2) having strip-shaped holes, characterized in that, A first connecting seat (3) is fixedly connected to the strip-shaped hole of the first fiberglass plate (1), and a second connecting seat (4) is fixedly connected to the strip-shaped hole of the second fiberglass plate (2). The first connecting seat (3) and the second connecting seat (4) are connected by bolts (5). The bolts (5) are perpendicular to the surface of the first fiberglass plate (1). The connecting end of the first connecting seat (3) and the second connecting seat (4) protrudes from the first fiberglass plate (1), and the connecting end of the second connecting seat (4) and the first connecting seat (3) protrudes from the second fiberglass plate (2).
2. The fiberglass connection structure with controllable spacing according to claim 1, characterized in that, The first connecting seat (3) is provided with a first clamping plate (301), and the first clamping plate (301) is fixedly connected to the side of the first fiberglass plate (1) away from the second fiberglass plate (2).
3. The fiberglass connection structure with controllable spacing according to claim 2, characterized in that, The first clamping plate (301) is bonded to the first fiberglass plate (1).
4. The fiberglass connection structure with controllable spacing according to claim 1, characterized in that, The second connecting seat (4) is provided with a second clamping plate (401), and the second clamping plate (401) is fixedly connected to the side of the second fiberglass plate (2) away from the first fiberglass plate (1).
5. The fiberglass connection structure with controllable spacing according to claim 4, characterized in that, The second clamping plate (401) is bonded to the second fiberglass plate (2).
6. The fiberglass connection structure with controllable spacing according to claim 1, characterized in that, The first connecting seat (3) has a strip hole corresponding to the strip hole of the first fiberglass plate (1). The first connecting seat (3) is provided with a first slide rail (302) at one end away from the first fiberglass plate (1). The extension direction of the first slide rail (302) is the same as the extension direction of the strip hole of the first fiberglass plate (1). The first slide rail (302) is slidably connected to a first slider square nut (303). The first slider square nut (303) is provided with an internal thread that engages with the bolt (5).
7. The fiberglass connection structure with controllable spacing according to claim 1, characterized in that, The second connecting seat (4) has a strip hole corresponding to the strip hole of the second fiberglass plate (2). The end of the second connecting seat (4) away from the second fiberglass plate (2) is provided with a second slide rail (402). The extension direction of the second slide rail (402) is the same as the extension direction of the strip hole of the second fiberglass plate (2). The second slide rail (402) is slidably connected with a second slider square nut (403). The second slider square nut (403) is provided with an internal thread that engages with the bolt (5).