Core-pulling riveting nut

Abstract

The utility model discloses a core-pulling riveting nut, relates to the technical field of nuts, solves the problems that an existing device is poor in use effect and low in waterproof sealing performance, and adopts the following scheme that a riveting cylinder matched with the installation hole in specification is assembled in the installation hole. The riveting barrel is inserted into the mounting hole, the fixing head is located on the top face of the mounting plate, then the core pulling rod is rotationally mounted in the internal thread groove through threads by a hand riveter, so that the deformation cavity is driven to deform, the surface friction force and the deformation range of the core pulling rod can be improved through the deformation tooth grooves, the mounting firmness and stability of the core pulling rod are improved, and the use effect is good; and meanwhile, through arrangement of a rubber sealing ring and a rubber sealing sleeve, the rubber sealing ring can improve the sealing performance of the bottom face of the mounting plate, the rubber sealing sleeve can seal the top face of the fixing head, it is guaranteed that rainwater entering the deformation cavity cannot flow out through a fixing cover, the waterproof sealing performance is good, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically a core-pulling riveting nut. Background Technology

[0002] Press-fit nuts, also known as rivet nuts or self-locking nuts, are a type of nut used on thin plates or sheet metal. Traditional press-fit nuts are prone to misalignment or tilting during riveting installation. The end of the guide post nut is difficult to fit against the plate, the thread center line is not perpendicular to the plate surface, and press-fit nuts can easily pop out and cause injury during installation.

[0003] A search revealed that patent application CN104100624A discloses a core-pulling riveting nut assembly and riveting method, including a riveting nut and a riveting core rod. The riveting nut and the riveting core rod are connected by a threaded pair. One end of the riveting nut is a thick-walled round nut, and the other end is a thin-walled riveting ring. The connection end face of the thick-walled round nut and the thin-walled riveting ring is provided with a set of anti-slip ribs. The connection corner of the thick-walled round nut and the thin-walled riveting ring is provided with a runout groove. One end of the riveting core rod is provided with a square boss rotating arm. This eliminates the need for welding, allows for controllable riveting pressure, and prevents slippage.

[0004] However, due to the design of the rivet nut and rivet core rod, the installation of the rivet nut is not very secure and has poor performance. At the same time, due to the design of the rivet nut, rainwater can easily flow down from the rivet nut, resulting in poor waterproof sealing and low practicality.

[0005] Therefore, we propose a core-pulling riveting nut. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a core-pulling riveting nut, which solves the problems of poor performance and low waterproof sealing of existing devices.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a core-pulling riveting nut, comprising a mounting plate and a rivet gun, wherein the top surface of the mounting plate is provided with a mounting hole;

[0008] A riveting cylinder of the same specification is fitted into the mounting hole. A fixing head of the same specification is fixedly installed on the top surface of the riveting cylinder. A deformation cavity extending into the riveting cylinder is opened on the top surface of the fixing head. An internal thread groove of the same specification is opened at the bottom of the deformation cavity. A deformation tooth groove located on the bottom surface of the fixing head is fitted on the outer wall of the riveting cylinder. A core-pulling rod of the same specification is fitted into the deformation cavity. A thread of the core-pulling rod with a specification matching the internal thread is opened on the outer wall of the core-pulling rod.

[0009] The bottom surface of the fixing head is provided with an annular groove, and a rubber sealing ring of the same specification is installed in the groove. The top surface of the fixing head is provided with a rubber sealing sleeve of the same specification, and a fixing cover of the same specification is fixedly installed on the bottom surface of the riveting cylinder.

[0010] Preferably, the diameter of the internal thread groove is smaller than that of the deformable tooth groove, so that the core-pulling rod can be easily pulled out after the deformation cavity is deformed.

[0011] Preferably, a hexagonal bolt head is fixedly installed at the top of the core-pulling rod, which facilitates the insertion and removal of the core-pulling rod through the riveting cavity.

[0012] Preferably, the bottom surface of the fixing head is fitted with uniformly distributed knurling, which can improve the friction and stability between the fixing head and the mounting plate, and improve the strength of the connection.

[0013] Preferably, the riveting cylinder and the fixing head are made of carbon steel, which can reduce production costs and increase hardness.

[0014] Preferably, the outer walls of the riveting cylinder and the fixing head are fitted with a galvanized layer, which can improve corrosion resistance and extend their service life.

[0015] 1. This type of core-pulling riveting nut, through the setting of deformable tooth groove and deformable cavity, allows the riveting cylinder to be inserted into the mounting hole, with the fixing head located on the top surface of the mounting plate. Then, the core-pulling rod is installed into the internal thread groove by rotating it through the thread using a rivet gun, thereby causing the deformable cavity to deform. The deformable tooth groove can improve the surface friction and deformation range, improve the firmness and stability of its installation, and has a good performance.

[0016] 2. Simultaneously, through the setting of rubber sealing rings and rubber sealing sleeves, the rubber sealing rings can improve the sealing performance of the bottom surface of the mounting plate, the rubber sealing sleeves can seal the top surface of the fixing head, and the fixing cover ensures that even if rainwater enters the deformation cavity, it will not leak out, resulting in good waterproof sealing and improved practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal thread groove of this utility model;

[0019] Figure 3 This is a schematic diagram of the knurling structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the core-pulling rod of this utility model.

[0021] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Riveting cylinder; 4. Fixing head; 5. Deformation cavity; 6. Internal thread groove; 7. Deformation tooth groove; 8. Core pull rod; 9. Bolt head; 10. Groove; 11. Rubber sealing sleeve; 12. Fixing cover; 13. Knurling. Detailed Implementation

[0022] 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.

[0023] Example 1: As Figure 1-4 As shown: A riveting cylinder 3 of the same specification is installed in the mounting hole 2. A fixing head 4 of the same specification is fixedly installed on the top surface of the riveting cylinder 3. A deformation cavity 5 extending into the riveting cylinder 3 is opened on the top surface of the fixing head 4. An internal thread groove 6 of the same specification is opened at the bottom of the deformation cavity 5. A deformation tooth groove 7 located on the bottom surface of the fixing head 4 is installed on the outer wall of the riveting cylinder 3. A core-pulling rod 8 of the same specification is installed in the deformation cavity 5. A thread matching the specification of the internal thread 6 is opened on the outer wall of the core-pulling rod 8. Through the setting of the deformation tooth groove 7 and the deformation cavity 5, the riveting cylinder 3 is inserted into the mounting hole 2. The fixing head 4 is located on the top surface of the mounting plate 1. Then, the core-pulling rod 8 is installed into the internal thread groove 6 by rotating the thread with a rivet gun, thereby causing the deformation cavity 5 to deform. The deformation tooth groove 7 can improve the surface friction and deformation range, improve the firmness and stability of the installation, and has a good effect.

[0024] Example 2: As Figure 2-4 As shown: The bottom surface of the fixing head 4 has an annular groove 10, and a rubber sealing ring of the same specification is installed in the groove 10. The top surface of the fixing head 4 is equipped with a rubber sealing sleeve 11 of the same specification. The bottom surface of the riveting cylinder 3 is fixedly installed with a fixing cover 12 of the same specification. Through the setting of the rubber sealing ring and the rubber sealing sleeve 11, the rubber sealing ring can improve the sealing performance of the bottom surface of the mounting plate 1, the rubber sealing sleeve 11 can seal the top surface of the fixing head 4, and the fixing cover 12 ensures that even if rainwater enters the deformation cavity 5, it will not flow out. It has good waterproof sealing performance and improves practicality.

[0025] Example 3: As Figure 2-3 As shown: The bottom surface of the fixing head 4 is fitted with evenly distributed knurled patterns 13, which can improve the friction and stability between the fixing head 4 and the mounting plate 1, and improve the strength of the connection.

[0026] The working principle and usage process of this utility model are as follows: When the device is required to work, the riveting cylinder 3 is inserted into the mounting hole 2, the fixing head 4 is located on the top surface of the mounting plate 1, and then the core pull rod 8 is installed into the internal thread groove 6 by rotating it through the thread using a rivet gun, thereby causing the deformation cavity 5 to deform. The deformation groove 7 can improve the friction and deformation range of its surface, improve the firmness and stability of its installation, and has a good effect. At the same time, the rubber sealing ring can improve the sealing of the bottom surface of the mounting plate 1, the rubber sealing sleeve 11 can seal the top surface of the fixing head 4, and the fixing cover 12 ensures that even if rainwater enters the deformation cavity 5, it will not flow out, with good waterproof sealing and improved practicality.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A core-pulling rivet nut, comprising a mounting plate (1) and a rivet gun, wherein the top surface of the mounting plate (1) is provided with a mounting hole (2); Its features are: The mounting hole (2) is fitted with a riveting cylinder (3) of the same specification. A fixing head (4) of the same specification is fixedly installed on the top surface of the riveting cylinder (3). A deformation cavity (5) extending into the riveting cylinder (3) is opened on the top surface of the fixing head (4). An internal thread groove (6) of the same specification is opened at the bottom of the deformation cavity (5). A deformation tooth groove (7) located on the bottom surface of the fixing head (4) is fitted on the outer wall of the riveting cylinder (3). A core-pulling rod (8) of the same specification is fitted in the deformation cavity (5). A thread of the core-pulling rod (8) of the same specification is opened on the outer wall of the core-pulling rod (8) that is compatible with the specification of the internal thread groove (6). The bottom surface of the fixing head (4) is provided with an annular groove (10), and a rubber sealing ring of the same specification is installed in the groove (10). The top surface of the fixing head (4) is provided with a rubber sealing sleeve (11) of the same specification, and a fixing cover (12) of the same specification is fixedly installed on the bottom surface of the riveting cylinder (3).

2. The core-pulling riveting nut according to claim 1, characterized in that: The diameter of the internal thread groove (6) is smaller than that of the deformed tooth groove (7).

3. The core-pulling riveting nut according to claim 1, characterized in that: The top end of the core-pulling rod (8) is fixedly installed with a hexagonal bolt head (9).

4. The core-pulling riveting nut according to claim 1, characterized in that: The bottom surface of the fixing head (4) is fitted with uniformly distributed knurled patterns (13).

5. A core-pulling riveting nut according to claim 1, characterized in that: The riveting cylinder (3) and the fixing head (4) are made of carbon steel.

6. A core-pulling riveting nut according to claim 1, characterized in that: The outer walls of the riveting cylinder (3) and the fixing head (4) are fitted with a galvanized layer.

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