Detachable primary and secondary riveting nail

Abstract

The utility model relates to a detachable primary and secondary riveting nail, which belongs to the technical field of wallboard assembly and comprises a primary riveting nail penetrating through a heat insulation board, and one end of the primary riveting nail is fixedly connected with a baffle parallel to the heat insulation board and abutted against the side wall of the heat insulation board. A plurality of limiting teeth inclining in the direction close to the baffle are arranged on the outer side wall of the primary riveting nail, when the primary riveting nail penetrates through the heat preservation plate, the limiting teeth abut against the side wall of the heat preservation plate, and a secondary riveting nail arranged in the length direction of the primary riveting nail is arranged at the end, close to the baffle, of the primary riveting nail. And a connecting assembly for connecting the secondary riveting nail and the primary riveting nail is arranged between the secondary riveting nail and the primary riveting nail. The method has the effect of reducing the adverse effect on the combination stability of the heat preservation layer and the corresponding light aggregate layer.

Description

Technical Field

[0001] This application relates to the technical field of wall panel assembly, and in particular to a detachable male-female rivet. Background Technology

[0002] Ultra-low energy consumption prefabricated wall panels typically consist of an insulation layer and a lightweight aggregate layer injection-molded onto one side of the insulation layer. To improve the bonding strength between the insulation layer and the lightweight aggregate layer, multiple through-holes are usually made in the insulation layer. One end of a rivet corresponding to each hole is passed through the corresponding hole until the baffle at the other end of the rivet abuts against the side wall of the insulation layer. The insulation layer is then placed on a conveyor belt with the side closest to the baffle facing down for transport. The lightweight aggregate layer is then injection-molded onto the side of the insulation layer away from the baffle on the rivet, where the rivet connects the insulation layer and the lightweight aggregate layer, improving the bonding strength between them.

[0003] To further improve the performance of prefabricated wall panels, lightweight aggregate layers are usually injection molded on both sides of the insulation layer. As a result, the aforementioned rivets are difficult to adapt to the working environment of simultaneously bonding the lightweight aggregate layers on both sides of the insulation board with the insulation layer, which in turn adversely affects the stability of the bond between the insulation layer and the corresponding lightweight aggregate layer. Utility Model Content

[0004] In order to reduce the adverse effects on the bonding stability between the insulation layer and the corresponding lightweight aggregate layer, this application provides a detachable male-female rivet.

[0005] The detachable male-female rivet provided in this application adopts the following technical solution:

[0006] A detachable male-female rivet includes a female rivet that penetrates an insulation board. One end of the female rivet is fixedly connected to a baffle parallel to the insulation board and abutting against the side wall of the insulation board. The outer side wall of the female rivet is provided with a plurality of limiting teeth inclined towards the baffle. When the female rivet passes through the insulation board, the limiting teeth abut against the side wall of the insulation board. The end of the female rivet near the baffle is provided with a female rivet that is arranged along the length direction of the female rivet. A connecting component is provided between the female rivet and the female rivet to connect the two.

[0007] By adopting the above technical solution, the female rivet passes through the insulation layer. At this time, the baffle on the female rivet abuts against the side wall of the insulation layer. The female rivet is relatively fixed to the insulation layer by the friction between the limiting teeth and the side wall of the insulation layer. The end of the female rivet away from the baffle is located on the outside of the insulation layer. The male rivet is installed on the female rivet through the connecting assembly. When the lightweight aggregate layer is formed by injection molding on both sides of the insulation layer, the ends of the male and female rivets away from the baffle are coaxial and simultaneously connect the lightweight aggregate layers on both sides, reducing the adverse effects on the bonding stability of the insulation layer and the corresponding lightweight aggregate layer.

[0008] Optionally, the end of the female rivet away from the baffle is configured as a tip with a diameter that gradually decreases towards the side away from the baffle.

[0009] By adopting the above technical solution, the tip of the female rivet makes it easier for the female rivet to be aligned and pass through the insulation layer, thereby improving the installation efficiency of the female rivet.

[0010] Optionally, the outer side of the male rivet is fixedly connected with multiple extension teeth, and the outer side of the female rivet is also fixedly connected with multiple extension teeth. The extension teeth are all inserted into and fixedly connected in the lightweight aggregate layer, and the extension teeth are all inclined towards the direction of the insulation board.

[0011] By adopting the above technical solution, when the insulation layer is injection molded on both sides to form a lightweight aggregate layer, the extension teeth are all located in the lightweight aggregate layer, thereby increasing the contact area between the male and female rivets and the lightweight aggregate layer, thus improving the bonding stability between the insulation layer and the corresponding lightweight aggregate layer. In addition, the inclination direction of the extension teeth makes it difficult for the lightweight aggregate layer to detach from the insulation layer, further improving the bonding stability between the insulation layer and the corresponding lightweight aggregate layer.

[0012] Optionally, the connecting assembly includes a screw fixedly connected to one end of the female rivet near the baffle and facing the baffle, the screw passing through the baffle and being inserted into and threadedly connected to the female rivet.

[0013] By adopting the above technical solution, when the female rivet is installed on the insulation layer and conveyed by the conveyor belt to inject lightweight aggregate on one side, the male rivet is not installed on the female rivet, thereby reducing the adverse effects on the injection molding of lightweight aggregate. When the lightweight aggregate on one side of the insulation layer is injection molded, the insulation layer is flipped so that the baffle is facing upward. At this time, the male rivet is fixed to the female rivet by the screw, and lightweight aggregate is injected onto one side of the male rivet. This increases the bonding force between the insulation layer and the lightweight aggregate layers on both sides through the male and female rivets, reducing the adverse effects on the bonding stability between the insulation layer and the corresponding lightweight aggregate layer.

[0014] Optionally, the connecting assembly includes a connecting rod fixedly connected to the end of the sub-rivet near the baffle and facing the baffle. Connecting plates are inserted into and slidably connected to both sides of the connecting rod. The end of the female rivet near the baffle has a connecting groove corresponding to the connecting plate. The connecting rod passes through the baffle and is inserted into the female rivet. The sub-rivet is provided with a driving member that drives the connecting plate to be inserted into the connecting groove. The baffle is provided with a locking member that fixes the baffle and the sub-rivet.

[0015] By adopting the above technical solution, the connecting rod is inserted into the female rivet, and the connecting plate is moved and inserted into the corresponding connecting groove by the driving component. At this time, the connecting plate fixes the male rivet and the female rivet relatively. The locking component further fixes the baffle to the male rivet, which makes it easier to install the male rivet on the female rivet, increases the stability of the connection between the male rivet and the female rivet, and reduces the adverse effects on the bonding stability between the insulation layer and the corresponding lightweight aggregate layer.

[0016] Optionally, the locking member includes a disc that is inserted into and threadedly connected to the baffle and coaxial with the sub-rivet. The sub-rivet has a thread on the outer side of one end near the baffle. The end of the disc away from the female rivet can be sleeved on the sub-rivet and threadedly connected to the sub-rivet. At this time, the end of the disc away from the sub-rivet is threadedly connected to the baffle.

[0017] By adopting the above technical solution, the connecting plate relatively fixes the male rivet and the female rivet. At this time, the disc is rotated and one end of the disc away from the tip of the female rivet is threadedly connected to the male rivet, and the other end is threadedly connected to the baffle, which further fixes the male rivet and the female rivet and improves the stability of the connection between the male rivet and the female rivet.

[0018] Optionally, the driving component includes a driving rod with one end inserted into the sub-rivet and slidably connected to the sub-rivet. The end of the driving rod inserted into the sub-rivet is set as a tip. Springs are fixedly connected to each of the connecting plates. The ends of the springs away from the corresponding connecting plates are fixedly connected to the sidewall of the connecting rod. The sides of the connecting plates that are close to each other abut against the tip of the driving rod.

[0019] By adopting the above technical solution, the drive rod is pushed to move closer to the connecting plate. The tip of the drive rod presses the connecting plate to move away from each other until the connecting plate is inserted into the corresponding connecting groove. At this time, the drive rod continues to move until the end of the drive rod away from its own tip is level with the end of the rivet, thereby fixing the rivet and the rivet relatively and improving the stability of the connection between the rivet and the rivet.

[0020] Optionally, when the end of the drive rod away from its own tip is level with the end of the sub-rivet, the tip of the drive rod passes through the connecting rod and is inserted into and threadedly connected to the female rivet.

[0021] By adopting the above technical solution, the drive rod is fully inserted into the female rivet, and the tip of the drive rod is inserted into the female rivet and threadedly connected to the female rivet, which further increases the contact area between the female and male rivets and improves the stability of the connection between the female and male rivets.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] The male rivet is installed on the female rivet through the connecting assembly. When the lightweight aggregate layer is formed by injection molding on both sides of the insulation layer, the ends of the male and female rivets away from the baffle are coaxial and simultaneously connect the lightweight aggregate layers on both sides, reducing the adverse effects on the bonding stability between the insulation layer and the corresponding lightweight aggregate layer.

[0024] When the insulation layer is injection molded on both sides to form a lightweight aggregate layer, the extension teeth are all located in the lightweight aggregate layer and increase the contact area between the male and female rivets and the lightweight aggregate layer. The inclination direction of the extension teeth makes it difficult for the lightweight aggregate layer to detach from the insulation layer, thus improving the bonding stability between the insulation layer and the corresponding lightweight aggregate layer.

[0025] When the female rivet is installed on the insulation layer and the lightweight aggregate on one side is injected, the male rivet is not installed on the female rivet to reduce the adverse effects on the injection of the lightweight aggregate. When the lightweight aggregate on the other side is injected, the male rivet is fixed to the female rivet by a screw, and the lightweight aggregate is injected onto one side of the male rivet. This increases the bonding force between the insulation layer and the lightweight aggregate layers on both sides through the male and female rivets. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the detachable male and female rivets in Embodiment 1 of this application.

[0027] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the screw and the female rivet in Embodiment 1 of this application.

[0028] Figure 3 This is a schematic diagram illustrating the positional relationship between the disc and the female rivet in Embodiment 2 of this application.

[0029] Figure 4 This is a structural schematic diagram illustrating the positional relationship between the connecting rod and the female rivet in Embodiment 2 of this application.

[0030] Figure 5 yes Figure 4 Enlarged view of the structure at point A in the middle.

[0031] Figure 6 This is a structural schematic diagram illustrating the positional relationship between the disk and the connecting rod in Embodiment 2 of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Female rivet; 11. Baffle; 111. Mounting groove; 12. Limiting tooth; 13. Threaded groove; 14. Insertion groove; 15. Connecting groove; 2. Female rivet; 21. Extension tooth; 3. Connecting assembly; 31. Screw; 32. Connecting rod; 321. Receiving hole; 322. Connecting groove; 33. Connecting plate; 331. Spring; 332. Fixing plate; 34. Drive rod; 341. Unlocking groove; 35. Disc. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a detachable male-female rivet. Example

[0035] Reference Figure 1 and Figure 2 A detachable female rivet includes a female rivet 1 that penetrates the insulation layer. One end of the female rivet 1 is fixedly connected to a baffle 11 with a diameter larger than the cross-sectional diameter of the female rivet 1 and perpendicular to the length direction of the female rivet 1. The baffle 11 is coaxial with the female rivet 1, and the end of the female rivet 1 away from the baffle 11 is set as a tip with a diameter that gradually decreases towards the side away from the baffle 11.

[0036] A plurality of limiting teeth 12 are fixedly connected to the outer wall of the female rivet 1 near the baffle 11. The limiting teeth 12 are symmetrically arranged along the length of the female rivet 1, and the ends of the limiting teeth 12 away from the female rivet 1 are all inclined towards the baffle 11. When the female rivet 1 passes through the insulation layer, the baffle 11 abuts against the side wall of the insulation layer, and the ends of the limiting teeth 12 away from the female rivet 1 abut against the side wall of the insulation layer.

[0037] Reference Figure 1 The female rivet 1 has a male rivet 2 at its end near the baffle 11, parallel to the length of the female rivet 1 and coaxial with the baffle 11. A connecting assembly 3 detachably connects the male rivet 2 and the female rivet 1. Multiple extension teeth 21 symmetrically arranged along the length of the male rivet 2 are fixedly connected to the outer side of the male rivet 2. Similarly, the outer side of the female rivet 1 at its end away from the baffle 11 also has multiple extension teeth 21 symmetrically arranged along the length of the male rivet 2. All extension teeth 21 are inclined away from the rotation axis of the female rivet 1 and towards the side closer to the insulation layer. During injection molding of the lightweight aggregate layers on both sides of the insulation layer, the extension teeth 21 are inserted into and fixedly connected to the corresponding lightweight aggregate layers.

[0038] The female rivet 1 is passed through the insulation layer, and its tip is aligned with the insulation layer. At this time, the baffle 11 on the female rivet 1 abuts against the side wall of the insulation layer. The female rivet 1 is fixed to the insulation layer by the friction between the limiting tooth 12 and the side wall of the insulation layer. The end of the female rivet 1 away from the baffle 11 is located on the outside of the insulation layer. The male rivet 2 is installed on the female rivet 1 through the connecting component 3. When the lightweight aggregate layer is formed by injection molding on both sides of the insulation layer, the ends of the male rivet 2 and the female rivet 1 away from the baffle 11 are connected to the lightweight aggregate layer on both sides. The extension teeth 21 are all located in the lightweight aggregate layer and increase the contact area between the male rivet 2 and the female rivet 1 and the lightweight aggregate layer. The inclination direction of the extension teeth 21 makes it difficult for the lightweight aggregate layer to detach from the insulation layer, thus completing the installation of the prefabricated wall.

[0039] Reference Figure 2 The connecting assembly 3 includes a screw 31 fixedly connected to one end of the sub-rivet 2 near the baffle 11 and coaxial with the sub-rivet 2, with the screw 31 facing the female rivet 1. The female rivet 1 has a threaded groove 13 adapted to the screw 31 on the side near the baffle 11. The screw 31 passes through the baffle 11 and is inserted into and threadedly connected to the female rivet 1 through the threaded groove 13.

[0040] When the female rivet 1 is installed on the insulation layer and the lightweight aggregate on one side is conveyed and injected through the conveyor belt, the male rivet 2 is not installed on the female rivet 1. When the lightweight aggregate on one side of the insulation layer is injected and molded, the insulation layer is flipped so that the baffle 11 is facing upward. At this time, the male rivet 2 is fixed to the female rivet 1 through the screw 31 and the threaded groove 13, and lightweight aggregate is injected into one side of the male rivet 2 to complete the installation of the prefabricated wall.

[0041] The implementation principle of Example 1 is as follows: the female rivet 1 is passed through the insulation layer, and the limiting tooth 12 fixes the female rivet 1 and the insulation layer relatively. After the lightweight aggregate layer on one side is injected, the male rivet 2 is installed on the female rivet 1. When the lightweight aggregate layers on both sides of the insulation layer are injected, the ends of the male rivet 2 and the female rivet 1 away from the baffle 11 are connected to the lightweight aggregate layers on both sides. The extension tooth 21 increases the contact area between the male rivet 2 and the female rivet 1 and the lightweight aggregate layer. The inclination direction of the extension tooth 21 makes it difficult for the lightweight aggregate layer to detach from the insulation layer, thus completing the installation of the prefabricated wall. Example

[0042] Reference Figure 3 and Figure 4 The difference between this embodiment and Embodiment 1 is that the connecting assembly 3 includes a connecting rod 32 fixedly connected to the end of the sub-rivet 2 near the baffle 11 and coaxial with the sub-rivet 2. The connecting rod 32 faces the female rivet 1. The end of the female rivet 1 near the baffle 11 has an insertion groove 14 adapted to the connecting rod 32. The connecting rod 32 passes through the baffle 11 and is inserted into the insertion groove 14. Both connecting rods 32 are provided with oppositely arranged connecting plates 33. The connecting rod 32 has a receiving hole 321 extending along the cross-sectional direction of the connecting rod 32. The sides of the connecting plates 33 that are close to each other are inserted into the receiving holes 321 and slidably connected to the receiving holes 321. Both connecting plates 33 can be completely inserted into the receiving holes 321.

[0043] Reference Figure 4 , Figure 5 and Figure 6The female rivet 1 has a connecting groove 15 inside that corresponds to the connecting plate 33 and communicates with the insertion groove 14. When the connecting rod 32 is fully inserted into the insertion groove 14, the connecting plate 33 is directly opposite the corresponding connecting groove 15. The male rivet 2 is provided with a driving component that drives the connecting plate 33 to insert into the corresponding connecting groove 15. The side of the baffle 11 away from the female rivet 1 is provided with a locking component that fixes the baffle 11 and the male rivet 2.

[0044] Insert the connecting rod 32 into the insertion slot 14, and drive the connecting plate 33 to move and insert it into the corresponding connecting slot 15. At this time, the connecting plate 33 fixes the male rivet 2 and the female rivet 1 relative to each other. The locking member fixes the baffle 11 to the male rivet 2, thus completing the installation of the male rivet 2.

[0045] Reference Figure 4 and Figure 5 Two springs 331 are provided on one side of the connecting plate 33 along its length, and two springs 331 are also provided on the other side of the connecting plate 33. A fixing plate 332, corresponding to each spring 331, is fixedly connected to the side wall of the connecting plate 33. One end of each spring 331 is fixedly connected to its corresponding fixing plate 332. A connecting groove 322, corresponding to each spring 331, is opened on the connecting rod 32. The end of each spring 331 away from the fixing plate 332 is inserted into its corresponding connecting groove 322 and fixedly connected to the connecting rod 32. When the spring 331 is at its original length, the connecting plate 33 is located within the receiving hole 321.

[0046] Reference Figure 3 and Figure 6 The driving component includes a driving rod 34 located at the end of the sub-rivet 2 away from the baffle 11. The end of the driving rod 34 near the baffle 11 is configured with a tip that gradually decreases in size towards the side of the female rivet 1. The tip of the driving rod 34 passes through the sub-rivet 2 and the baffle 11 and is inserted into the receiving hole 321 of the connecting rod 32. The sides of the connecting plates 33 that are close to each other abut against the sidewall of the tip of the driving rod 34.

[0047] When the end of the drive rod 34 furthest from its own tip is aligned with the end of the female rivet 2 furthest from the baffle 11, the tip of the drive rod 34 passes through the connecting rod 32 and is threadedly connected to the female rivet 1. An unlocking groove 341 is provided at the end of the drive rod 34 furthest from its own tip to facilitate rotation of the drive rod 34.

[0048] A ring-shaped mounting groove 111 with an inner diameter matching the outer diameter of the rivet 2 is provided in the middle of the side of the baffle 1 away from the female rivet 1. The locking element includes a disc 35 inserted into the mounting groove 111 and coaxial with the baffle 11. The inner diameter of the disc 35 matches the outer diameter of the rivet 2, and the disc 35 is threadedly connected to the baffle 11. The outer side of the rivet 2 near the baffle 11 is threaded. The end of the disc 35 near the rivet 2 is threadedly fitted and threadedly connected to the rivet 2, and at this time, the end of the disc 35 near the baffle 11 is threadedly connected to the baffle 11.

[0049] Push the drive rod 34 towards the connecting plate 33. The tip of the drive rod 34 presses against the connecting plate 33 until the connecting plate 33 is inserted into the corresponding connecting groove 15. Continue to drive the drive rod 34 until the thread of the drive rod 34 near the tip contacts the female rivet 1. Rotate the drive rod 34 until the end of the drive rod 34 away from its tip is flush with the end wall of the male rivet 2. At this time, the tip of the drive rod 34 is inserted into the female rivet 1 and threadedly connected to the female rivet 1. Rotate the disc 35 and drive the end of the disc 35 away from the tip of the female rivet 1 to be threadedly connected to the male rivet 2, and the other end to be threadedly connected to the baffle 11, thus completing the installation of the male rivet 2 and the female rivet 1.

[0050] The implementation principle of Example 2 is as follows: the connecting rod 32 is inserted into the insertion slot 14, the connecting plate 33 is driven to move and be inserted into the corresponding connecting slot 15. At this time, the connecting plate 33 fixes the male rivet 2 and the female rivet 1 relative to each other, and the baffle 11 is fixed to the male rivet 2 by the disc 35, thus completing the installation of the male rivet 2.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A detachable female rivet, comprising a female rivet (1) penetrating an insulation board, wherein one end of the female rivet (1) is fixedly connected to a baffle (11) parallel to the insulation board and abutting against the side wall of the insulation board, and the outer side wall of the female rivet (1) is provided with a plurality of limiting teeth (12) inclined toward the baffle (11), wherein when the female rivet (1) passes through the insulation board, the limiting teeth (12) abut against the side wall of the insulation board, characterized in that: The female rivet (1) has a female rivet (2) arranged along the length direction of the female rivet (1) at one end near the baffle (11), and a connecting component (3) connecting the two is provided between the female rivet (2) and the female rivet (1).

2. The detachable yin and yang rivet according to claim 1, characterized in that: The end of the female rivet (1) away from the baffle (11) is configured with a tip whose diameter gradually decreases toward the side away from the baffle (11).

3. A detachable male-female rivet according to claim 2, characterized in that: The outer side of the sub-rivet (2) is fixedly connected with multiple extension teeth (21), and the outer side of the mother rivet (1) is also fixedly connected with multiple extension teeth (21). The extension teeth (21) are all inserted into and fixedly connected in the lightweight aggregate layer, and the extension teeth (21) are all inclined towards the direction of the insulation board.

4. The detachable yin and yang rivet according to claim 3, characterized in that: The connecting assembly (3) includes a screw (31) fixedly connected to the sub-rivet (2) at one end near the baffle (11) and facing the baffle (11). The screw (31) passes through the baffle (11) and is inserted into and threadedly connected to the female rivet (1).

5. A detachable male-female rivet according to claim 3, characterized in that: The connecting assembly (3) includes a connecting rod (32) fixedly connected to the end of the sub-rivet (2) near the baffle (11) and facing the baffle (11). Connecting plates (33) are inserted and slidably connected to both sides of the connecting rod (32). The end of the female rivet (1) near the baffle (11) is provided with a connecting groove (15) corresponding to the connecting plate (33). The connecting rod (32) passes through the baffle (11) and is inserted into the female rivet (1). The sub-rivet (2) is provided with a driving member that drives the connecting plate (33) to be inserted into the connecting groove (15). The baffle (11) is provided with a locking member that fixes the baffle (11) and the sub-rivet (2).

6. The detachable yin and yang rivet according to claim 5, characterized in that: The locking component includes a disc (35) that is inserted into and threadedly connected to the baffle (11) and coaxial with the sub-rivet (2). The sub-rivet (2) has a thread on the outer side of one end near the baffle (11). The end of the disc (35) away from the female rivet (1) can be sleeved on the sub-rivet (2) and threadedly connected to the sub-rivet (2). At this time, the end of the disc (35) away from the sub-rivet (2) is threadedly connected to the baffle (11).

7. The detachable yin and yang rivet according to claim 6, characterized in that: The driving component includes a driving rod (34) with one end inserted into the sub-rivet (2) and slidably connected to the sub-rivet (2). The end of the driving rod (34) inserted into the sub-rivet (2) is set as a tip. Springs (331) are fixedly connected to each of the connecting plates (33). The ends of the springs (331) away from the corresponding connecting plates (33) are fixedly connected to the side wall of the connecting rod (32). The sides of the connecting plates (33) that are close to each other abut against the tip of the driving rod (34).

8. A detachable male-female rivet according to claim 7, characterized in that: When the end of the drive rod (34) away from its own tip is level with the end of the sub-rivet, the tip on the drive rod (34) passes through the connecting rod (32) and is inserted into and threadedly connected to the female rivet (1).

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