A prefabricated mounting clip for assembly kits

By using a combination of hinge structures and limiting bolts, expansion bolts, and clamping bolts in prefabricated installation clips for assembled kits, the problem of relative displacement between metal composite plate installation components is solved, improving installation accuracy and connection stability, extending service life, and reducing costs.

CN120798934BActive Publication Date: 2026-03-13ZHONGDING INT ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In the existing technology, the lack of an effective pre-positioning mechanism between the mounting components of metal composite panels makes it easy for relative displacement to occur between the mounting components, thus reducing the installation accuracy.

Method used

The assembly plate and mounting plate structure are detachable and can be flexibly adjusted by hinge structure. The combination of limit bolts, expansion bolts and clamping bolts is used to achieve initial positioning and further tightening, thereby enhancing connection stability.

Benefits of technology

It improves installation accuracy and connection stability, prevents relative displacement, increases the adaptability of the mounting plate, extends service life through anti-corrosion coating, and reduces manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a prefabricated mounting fastener for assembly, relating to the field of prefabricated connection structure technology. It includes two detachably connected assembly plates, with mounting plates respectively positioned below the two assembly plates. Each assembly plate has a detachably mounted compression plate on its sides. Several rotating grooves are formed on the adjacent sides of the two mounting plates, and hinges are installed within these grooves. The invention further includes a pre-installation assembly positioned between the assembly plates and the mounting plates for pre-positioning their relative positions. Limiting bolts on the assembly plates and through holes on the mounting plates allow for initial positioning of the assembly plates and mounting plates without the need for tightening. By sliding the limiting bolts into the through holes and then laterally sliding the mounting plates, the limiting bolts engage with the limiting grooves on the inner wall of the through holes. This achieves initial positioning of the assembly plates and mounting plates without the need for tightening, preventing relative displacement during subsequent operations and increasing the accuracy of subsequent installation.
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Description

Technical Field

[0001] This invention relates to the field of prefabricated connection structure technology, and in particular to a prefabricated installation fastener for prefabricated assembly. Background Technology

[0002] Prefabricated installation clips for modular assembly are standardized fasteners used for the quick connection and fixation of building, mechanical, or electronic components. They are characterized by modularity, efficient installation, and reusability. Widely used in building curtain walls, modular housing, automobile assembly, and power equipment, they are key components in industrialized prefabricated construction.

[0003] According to Chinese patent announcement number CN222334180U, a barbed fastener includes a metal composite plate body, an inner mounting part, and a positioning structure. The outer wall of the metal composite plate body has a first anti-detachment groove, and the inner wall of the metal composite plate body has a second anti-detachment groove. The inner mounting part is disposed on the inner wall of the metal composite plate body, and two sets of connecting sleeves are fixedly installed on the outer wall of the inner mounting part. One end of the connecting sleeve is fixedly connected to the outer mounting part. The positioning structure is disposed on the inner mounting part and the outer mounting part, and the positioning structure can prevent the inner mounting part and the outer mounting part from detaching from the metal composite plate body.

[0004] In the above scheme, the metal composite plate is fixed by inner and outer mounting parts, which still has the following disadvantages: when the inner and outer mounting parts initially contact the metal composite plate, there is no effective pre-positioning mechanism between the mounting parts of the metal composite plate, which makes it easy for relative displacement to occur between the mounting parts, reducing the installation accuracy. Summary of the Invention

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a prefabricated mounting clip for assembly, so as to solve the problem that the lack of an effective pre-positioning mechanism between the mounting parts of metal composite panels leads to relative displacement between the mounting parts and reduces the installation accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated mounting fastener for assembly and fitting, comprising two detachably connected assembly plates, with mounting plates respectively disposed below the two assembly plates, and extrusion plates detachably disposed on both sides of the two assembly plates. Several rotating grooves are respectively formed on the side of the two mounting plates that are close to each other, and hinges are installed in the rotating grooves. The two mounting plates are rotatably connected by the hinges. During the connection process between the mounting plates and the assembly plates, the included angle between the two mounting plates can be flexibly adjusted according to installation requirements through the hinge structure on the mounting plates, increasing the adaptability of the mounting plates. Further comprising a pre-installation component, which is disposed between the assembly plates and the mounting plates for pre-positioning the position between the assembly plates and the mounting plates.

[0007] By adopting the above technical solution, during the connection process between the mounting plate and the assembly plate, the hinge structure set on the mounting plate allows the included angle between the two mounting plates to be flexibly adjusted according to installation requirements, thereby increasing the adaptability of the mounting plate.

[0008] Preferably, a plurality of through holes are provided on one side of the mounting plate, and a limit groove is provided on the inner wall of the through holes; a plurality of threaded grooves are provided on the side of the assembly plate near the mounting plate, and a limit bolt is threadedly connected in the threaded groove. The limit bolt is slidably engaged in the through holes and slidably engaged with the limit groove.

[0009] By adopting the above technical solution, the limiting bolt is slidably fitted into the through hole, and then the mounting plate is slid laterally so that the limiting bolt is engaged in the limiting groove on the inner wall of the through hole. Thus, the initial position locking of the assembly plate and the mounting plate can be achieved without tightening, preventing relative displacement during subsequent operations and increasing the subsequent installation accuracy.

[0010] Preferably, a mounting groove is provided on one side of the mounting plate, a partition plate is fixedly installed in the mounting groove, a stabilizing hole is provided on the partition plate, a sleeve hole is provided on the side of the mounting plate near the assembly plate, a threaded hole is provided on the side of the assembly plate near the mounting plate, an expansion bolt is inserted into the stabilizing hole, and one end of the expansion bolt passes through the sleeve hole and is threadedly connected to the threaded hole.

[0011] By adopting the above technical solution, the expansion bolts pass through the stabilizing holes and the sleeve holes on the mounting plate in sequence, and are finally tightened with the threaded holes on the assembly plate, thereby enhancing the connection stability of the two through axial tightening force.

[0012] Preferably, the top surface of the extrusion plate has several receiving grooves, the bottom of the receiving grooves has a rotating hole, the mounting plate has several positioning holes on the side near the assembly plate, the rotating hole has an extrusion bolt inserted inside, the partition plate has several sliding holes, one end of the extrusion bolt is threaded to the positioning hole and slides in fit with the sliding hole, and the top surface of the extrusion plate has a center opening.

[0013] By adopting the above technical solution, the extrusion bolt passes through the rotating hole on the extrusion plate and is screwed into the positioning hole on the mounting plate, while simultaneously slidingly engaging with the sliding hole on the partition plate. This allows the extrusion plate to apply continuous lateral extrusion force to the mounting plate, further enhancing the overall connection strength.

[0014] Preferably, the top surface of the lower assembly plate is provided with a positioning groove, and a connecting plate is fixed on one side of the upper assembly plate, with the positioning groove and the connecting plate slidingly engaged.

[0015] By adopting the above technical solution, the sliding limit during the assembly process is achieved by the sliding engagement between the connecting plate on one side of the assembly plate and the positioning groove on the top surface of the other assembly plate.

[0016] Preferably, an assembly groove is provided on one side of the upper assembly plate, and an assembly plate is fixed on the top surface of the lower assembly plate, with the assembly groove and the assembly plate slidingly engaged.

[0017] By adopting the above technical solution, the connecting plate is slidably inserted into the assembly slot, thereby achieving double sliding limit during the assembly process.

[0018] Preferably, the surfaces of the mounting plate and the partition plate are coated with an anti-rust coating, which is formed by high-temperature metal particle spraying.

[0019] By adopting the above technical solution, the surfaces of the mounting plate and the partition plate are coated with a high-temperature metal particle anti-corrosion coating, which effectively prevents rust caused by humid environment during long-term use and improves service life.

[0020] Preferably, the assembly plate and the partition plate are made of low-carbon steel.

[0021] By adopting the above technical solution, the assembly plate and the partition plate are made of low carbon steel, which ensures structural strength while reducing manufacturing costs.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The limiting bolts on the assembly plate and the through holes on the mounting plate are designed to allow the limiting bolts to slide into the through holes. Then, the mounting plate is slid laterally so that the limiting bolts are engaged in the limiting grooves on the inner wall of the through holes. This allows for initial positioning of the assembly plate and mounting plate without the need for tightening, preventing relative displacement during subsequent operations and increasing the accuracy of subsequent installation.

[0024] Second, by slidingly engaging the connecting plate on one side of the assembly plate with the positioning groove on the top surface of the other assembly plate, and simultaneously sliding the connecting plate into the assembly groove, a double sliding limit is achieved during the assembly process. This allows the two assembly plates to flexibly adjust their relative positions during the initial installation process, and provides the advantages of being detachable and replaceable. During the connection between the mounting plate and the assembly plate, the hinge structure on the mounting plate allows the included angle between the two mounting plates to be flexibly adjusted according to installation requirements, increasing the adaptability of the mounting plate.

[0025] Third, the expansion bolts pass through the stabilizing holes and the sleeve holes on the mounting plate in sequence, and finally tighten them with the threaded holes on the assembly plate. The axial tightening force enhances the connection stability of the two. Subsequently, by passing the extrusion bolt through the rotating hole on the extrusion plate and screwing it into the positioning hole on the mounting plate, and simultaneously sliding with the sliding hole on the partition plate, the extrusion plate can apply a continuous lateral extrusion force to the mounting plate, further improving the overall connection strength.

[0026] Fourth, the surfaces of the mounting plate and the partition plate are coated with a high-temperature metal particle anti-corrosion coating, which effectively prevents rust caused by humid environments during long-term use and extends service life. In addition, the mounting plate and the partition plate are made of low-carbon steel, which ensures structural strength while reducing manufacturing costs. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0029] Figure 2 This is a schematic diagram showing the disassembled parts of the present invention;

[0030] Figure 3 This is a schematic diagram of the disassembly point of the assembly plate and mounting plate in this invention;

[0031] Figure 4 This is a schematic diagram of the separation of the partition plate and sliding hole in this invention;

[0032] Figure 5 This is a schematic diagram of the splitting point of the through hole and the limiting groove in this invention;

[0033] Figure 6This is a schematic diagram of the disassembled positioning groove and connecting plate in this invention;

[0034] Figure 7 This is a cross-sectional view of the mounting plate in this invention.

[0035] Reference numerals: 1. Assembly plate; 2. Mounting plate; 3. Extrusion plate; 4. Through hole; 5. Limiting groove; 6. Threaded groove; 7. Limiting bolt; 8. Sleeve hole; 9. Threaded hole; 10. Expansion bolt; 11. Dividing plate; 12. Mounting groove; 13. Receiving groove; 14. Rotating hole; 15. Extrusion bolt; 16. Positioning hole; 17. Sliding hole; 18. Center opening; 19. Stabilizing hole; 20. Rotating groove; 21. Hinge; 22. Positioning groove; 23. Connecting plate; 24. Assembly groove; 25. Assembly plate; 26. Anti-corrosion coating. Detailed Implementation

[0036] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0037] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6This invention provides a technical solution: a prefabricated mounting fastener for assembly, comprising two detachably connected assembly plates 1, with mounting plates 2 respectively disposed below the two assembly plates 1, and extrusion plates 3 detachably disposed on both sides of the two assembly plates 1. Several rotating grooves 20 are respectively opened on the side of the two mounting plates 2 that are close to each other, and hinges 21 are installed in the rotating grooves 20. The two mounting plates 2 are rotatably connected by the hinges 21. During the connection process between the mounting plates 2 and the assembly plates 1, the included angle between the two mounting plates 2 can be flexibly adjusted according to installation requirements through the hinge structure on the mounting plates 2, increasing the adaptability of the mounting plates 2. A pre-installation component is disposed between the assembly plates 1 and the mounting plates 2 for pre-positioning the position between the assembly plates 1 and the mounting plates 2. Several through holes 4 are opened on one side of the mounting plates 2, and limit grooves 5 are provided on the inner wall of the through holes 4. The side of the assembly plates 1 close to the mounting plates 2 has... There are several threaded grooves 6, and the threaded grooves 6 are connected to limit bolts 7. The limit bolts 7 are slidably engaged in the through hole 4 and slidably engaged in the limit groove 5. When the installer installs the mounting plate 2 onto the assembly plate 1, the angle between the two assembly plates 1 can be adjusted synchronously by the hinges 21 set on both sides of the mounting plate 2 according to the included angle between the two assembly plates 1 on site. During installation, the initial positioning is first achieved by pre-installing the components. The specific operation is as follows: on the side of the assembly plate 1 close to the mounting plate 2, several limit bolts 7 are pre-installed. The limit bolts 7 are threadedly engaged in the threaded grooves 6 on the assembly plate 1. Then, the mounting plate 2 is attached to one side of the assembly plate 1, so that the through hole 4 on the mounting plate 2 is slidably engaged with the limit bolts 7. The mounting plate 2 slides laterally, so that the limit bolts 7 are engaged in the limit grooves 5 opened in the inner wall of the through hole 4, thus completing the initial positioning between the assembly plate 1 and the mounting plate 2 and effectively preventing the relative displacement of the two during the installation process.

[0038] Please see Figures 2-4The mounting plate 2 has a mounting groove 12 on one side, and a partition plate 11 is fixedly installed in the mounting groove 12. A stabilizing hole 19 is provided on the partition plate 11. A sleeve hole 8 is provided on the side of the mounting plate 2 near the assembly plate 1. A threaded hole 9 is provided on the side of the assembly plate 1 near the mounting plate 2. An expansion bolt 10 is inserted into the stabilizing hole 19, with one end of the expansion bolt 10 passing through the sleeve hole 8 and threadedly connected to the threaded hole 9. The top surface of the extrusion plate 3 has several receiving grooves 13, and a rotating hole 14 is provided at the bottom of the receiving groove 13. The side of the mounting plate 2 near the assembly plate 1 has several positioning holes 16, and an extrusion bolt 15 is inserted into the rotating hole 14. Several sliding holes 17 are provided on the partition plate 11, with one end of the extrusion bolt 15 threadedly connected to the positioning hole 16 and the sliding hole 17. 7. Sliding fit: The top surface of the extrusion plate 3 has a center opening 18. After initial positioning, the operator further tightens it with expansion bolts 10. The expansion bolts 10 pass through the stabilizing hole 19 and the sleeve hole 8 on the mounting plate 2 in sequence, and are screwed into the threaded hole 9 on the assembly plate 1. The mounting plate 2 and the assembly plate 1 are firmly connected by axial tightening force to ensure structural stability. Then, the lateral tightening force is applied by the extrusion bolts 15. The extrusion bolts 15 pass through the rotating hole 14 on the extrusion plate 3 and are threaded to the positioning hole 16 on the mounting plate 2. At the same time, the extrusion bolts 15 pass through the sliding hole 17 on the partition plate 11. The sliding fit causes the extrusion bolts 15 to drive the extrusion plate 3 as a whole to apply extrusion force to the mounting plate 2 during the tightening process, thereby further enhancing the connection strength between the assembly plate 1 and the mounting plate 2.

[0039] Please see Figure 6 The lower assembly plate 1 has a positioning groove 22 on its top surface, and a connecting plate 23 is fixed on one side of the upper assembly plate 1. The positioning groove 22 and the connecting plate 23 are slidably engaged. The upper assembly plate 1 has an assembly groove 24 on one side, and an assembly plate 25 is fixed on the top surface of the lower assembly plate 1. The assembly groove 24 and the assembly plate 25 are slidably engaged. First, the two assembly plates 1 are pre-assembled. The connecting plate 23 on one side of the upper assembly plate 1 is slidably engaged with the positioning groove 22 on the top surface of the lower assembly plate 1. At the same time, the connecting plate 23 is slidably inserted into the assembly groove 24 on the upper assembly plate 1 and is slidably engaged with the assembly plate 25 on the lower assembly plate 1. Thus, double sliding limit is achieved during the assembly process, allowing the two assembly plates 1 to be flexibly adjusted in position during the assembly process, which is convenient for quick disassembly later.

[0040] Please see Figure 7Both the mounting plate 2 and the partition plate 11 are coated with an anti-rust coating 26. The anti-rust coating 26 is formed by high-temperature metal particle spraying. The mounting plate 1 and the partition plate 11 are made of low-carbon steel. The anti-rust coating 26 is formed by high-temperature metal particle spraying, which can effectively prevent the corrosion of structural components caused by environmental humidity and improve durability. The fact that both the mounting plate 1 and the partition plate 11 are made of low-carbon steel reduces the manufacturing cost.

[0041] Working Principle: In the assembly process of this invention, the two assembly plates 1 are first pre-assembled. A connecting plate 23 on one side of the upper assembly plate 1 slides into a positioning groove 22 on the top surface of the lower assembly plate 1. Simultaneously, the connecting plate 23 slides into the assembly groove 24 on the upper assembly plate 1 and slides into the assembly plate 25 on the lower assembly plate 1. This achieves double sliding limit during assembly, allowing the two assembly plates 1 to be flexibly adjusted during assembly, facilitating quick disassembly, reinstallation, and dimensional fine-tuning later. Before the installer places the mounting plate 2 onto the assembly plate 1, the angle between the two assembly plates 1 on site can be adjusted by the installation... The hinges 21 on both sides of the plate 2 synchronously adjust the angle between the two mounting plates 2. During installation, the initial positioning is achieved first through the pre-installation components. Specifically, on the side of the assembly plate 1 closest to the mounting plate 2, several limiting bolts 7 are pre-installed. The limiting bolts 7 are threaded into the threaded grooves 6 on the assembly plate 1. Then, the mounting plate 2 is attached to one side of the assembly plate 1, so that the through hole 4 on the mounting plate 2 slides with the limiting bolts 7. The mounting plate 2 slides laterally, so that the limiting bolts 7 are engaged in the limiting grooves 5 opened in the inner wall of the through hole 4, thus completing the initial positioning between the assembly plate 1 and the mounting plate 2 and effectively preventing the relative displacement of the two during the installation process.

[0042] After initial positioning, the operator further tightens the mounting plate using expansion bolts 10. The expansion bolts 10 pass through the stabilizing hole 19 and the sleeve hole 8 on the mounting plate 2, and are screwed into the threaded hole 9 on the assembly plate 1. Axial tightening force securely connects the mounting plate 2 and the assembly plate 1, ensuring structural stability. Subsequently, lateral tightening force is applied using clamping bolts 15. The clamping bolts 15 pass through the rotating hole 14 on the clamping plate 3 and are threaded into the positioning hole 16 on the mounting plate 2. Simultaneously, the clamping bolts 15 pass through the sliding hole 17 on the partition plate 11. This sliding fit causes the clamping bolts 15 to exert pressure on the clamping plate 3 as a whole towards the mounting plate 2 during tightening, further enhancing the connection strength between the assembly plate 1 and the mounting plate 2. Both the mounting plate 2 and the partition plate 11 are coated with an anti-rust coating 26, formed by high-temperature metal particle spraying, which effectively prevents structural corrosion caused by environmental humidity and improves durability. Both the assembly plate 1 and the partition plate 11 are made of low-carbon steel, reducing manufacturing costs.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A prefabricated installation fastener for assembled kits, characterized in that, It includes two detachably connected assembly plates (1), and mounting plates (2) are respectively provided below the two assembly plates (1). Extrusion plates (3) are respectively detachably provided on both sides of the two assembly plates (1). Several rotating grooves (20) are respectively opened on the side of the two mounting plates (2) that are close to each other. Hinges (21) are installed in the rotating grooves (20). The two mounting plates (2) are rotatably connected by the hinges (21). During the connection process between the mounting plate (2) and the assembly plate (1), the included angle between the two mounting plates (2) can be flexibly adjusted according to the installation requirements through the hinge (21) structure set on the mounting plate (2), which increases the adaptability of the mounting plate (2). It further includes a pre-installation component, which is disposed between the assembly plate (1) and the mounting plate (2) for pre-positioning the position between the assembly plate (1) and the mounting plate (2); The pre-installed assembly includes: a plurality of through holes (4) on one side of the mounting plate (2), and a limiting groove (5) provided on the inner wall of the through holes (4); a plurality of threaded grooves (6) are provided on the side of the assembly plate (1) near the mounting plate (2), and a limiting bolt (7) is threadedly connected in the threaded groove (6), and the limiting bolt (7) is slidably fitted in the through holes (4) and slidably fitted with the limiting groove (5); The mounting plate (2) has a mounting groove (12) on one side, and a partition plate (11) is fixedly installed in the mounting groove (12). A stabilizing hole (19) is provided on the partition plate (11). A sleeve hole (8) is provided on the side of the mounting plate (2) near the assembly plate (1). A threaded hole (9) is provided on the side of the assembly plate (1) near the mounting plate (2). An expansion bolt (10) is inserted into the stabilizing hole (19). One end of the expansion bolt (10) passes through the sleeve hole (8) and is threadedly connected to the threaded hole (9).

2. The prefabricated installation fastener for assembly according to claim 1, characterized in that: The top surface of the extrusion plate (3) is provided with several receiving grooves (13), and the bottom of the receiving grooves (13) is provided with rotating holes (14). The mounting plate (2) is provided with several positioning holes (16) on the side near the assembly plate (1). Extrusion bolts (15) are inserted into the rotating holes (14). The partition plate (11) is provided with several sliding holes (17). One end of the extrusion bolt (15) is threaded to the positioning hole (16) and slides in cooperation with the sliding hole (17). The top surface of the extrusion plate (3) is provided with a center opening (18).

3. A prefabricated installation fastener for assembly according to claim 2, characterized in that: The top surface of the lower assembly plate (1) is provided with a positioning groove (22), and a connecting plate (23) is fixed on one side of the upper assembly plate (1). The positioning groove (22) and the connecting plate (23) are slidably engaged.

4. A prefabricated installation fastener for assembly according to claim 3, characterized in that: The upper assembly plate (1) has an assembly groove (24) on one side, and the lower assembly plate (1) has an assembly plate (25) fixed on its top surface. The assembly groove (24) and the assembly plate (25) are slidably engaged.

5. A prefabricated installation fastener for assembly according to claim 3, characterized in that: The surfaces of the mounting plate (2) and the partition plate (11) are both coated with an anti-rust coating (26), which is formed by spraying high-temperature metal particles.

6. A prefabricated installation fastener for assembly according to claim 3, characterized in that: The assembly plate (1) and the partition plate (11) are made of low carbon steel.

Citation Information

Patent Citations

  • Barb type fastener

    CN222334180U

  • Mechanical connection structure of composite plate and steel structure and connecting method

    CN110332188A

  • Dovetail joint type embedded connecting piece and office table

    CN112483523A