Sealing type pressing rivet nut

Abstract

The utility model relates to the technical field of pressing rivet nuts, and discloses a sealing type pressing rivet nut which comprises a riveting column and a bolt, the top of the riveting column is communicated with a riveting head, the outer wall of the riveting head is fixedly connected with riveting teeth, the top of the riveting column is fixedly connected with a fixing ring, the top of the fixing ring is provided with an installation groove, and the installation groove is fixedly connected with the bolt. The inner wall of the mounting groove is slidably connected with a sliding ring, exhaust ports are formed in the periphery of the outer wall of the fixing ring, the sides, away from each other, of the multiple exhaust ports communicate with mounting rings, and the inner walls of the multiple mounting rings are rotatably connected with plugging blocks. According to the utility model, after the rubber air bag in the mounting groove is extruded by the sliding ring, air in the rubber air bag is exhausted through the exhaust port, so that external air and liquid are prevented from entering the mounting groove, the sliding ring is matched with the rubber air bag to seal the riveting head and the connecting position, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the rivet nut, especially to a sealed rivet nut. BACKGROUND

[0002] The rivet nut is also called a rivet nut or a self-buckling nut, is a kind of nut applied to sheet or sheet metal, and is circular in shape, has a riveting tooth and a guide groove at one end, and its principle is to press into the preset hole of sheet metal through the riveting tooth, and generally, the hole diameter of the preset hole is slightly smaller than the riveting tooth of the rivet nut, the petal tooth of the rivet nut is extruded into the plate through pressure to make the periphery of the preset hole plastically deform, the deformation is extruded into the guide groove, thereby achieving the locking effect.

[0003] The traditional rivet nut is mainly used for mechanical connection without special sealing design, and in some application scenarios requiring waterproof, dustproof and gasproof, liquid, gas or dust can enter from the connection between the nut and the plate, affecting the normal operation of the equipment, and the existing solution is to add a sealing rubber ring or a sealing gasket to the structure of the rivet nut, the sealing member is usually installed at the bottom or side of the nut, and when the nut is riveted to the plate, the sealing member is deformed by extrusion to fill the gap between the nut and the plate, thereby achieving the sealing effect, but the sealing member will be aged, deformed or damaged due to chemical substance erosion in the long-term use process, loses elasticity, and causes the sealing performance to decrease, so the sealed rivet nut is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a sealed rivet nut, aiming at improving the problem that the sealing member in the prior art is aged, deformed or damaged due to chemical substance erosion in the long-term use process, loses elasticity, and causes the sealing performance to decrease.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a sealed rivet nut, comprising a riveting column and a bolt, the top of the riveting column is communicated with a riveting head, the outer wall of the riveting head is fixedly connected with a riveting tooth, the top of the riveting column is fixedly connected with a fixed ring, the top of the fixed ring is provided with a mounting groove, the inner wall of the mounting groove is slidably connected with a sliding ring, the outer wall of the fixed ring is provided with an exhaust port around, the side away from each other of the plurality of exhaust ports is communicated with a mounting ring, the inner wall of the plurality of mounting rings is rotatably connected with a plugging block, the bottom of the sliding ring is fixedly connected with a rubber airbag, the outer wall of the rubber airbag is provided with a gas hole around, the top of the sliding ring is fixedly connected with a wear-resistant ring, the inner wall of the riveting column is provided with an anti-loosening mechanism, and the anti-loosening mechanism is used to ensure the firmness of the bolt.

[0006] Further description of the above technical scheme:

[0007] The anti-loosening mechanism comprises two elastic blocking blocks, the far sides of the two elastic blocking blocks are fixedly connected to the left and right sides of the inner wall of the riveting head, the adjacent sides of the two elastic blocking blocks are provided with a chamfer, the outer wall of the bolt is provided with a screw groove one, the left and right sides of the outer wall of the bolt are provided with a clamping groove, and the outer wall of the riveting head is provided with a screw groove two.

[0008] As a further description of the above technical scheme:

[0009] The inner wall top of the riveting head is provided with a fitting groove, and the outer wall of the bolt is arranged on the outer wall of the fitting groove.

[0010] As a further description of the above technical scheme:

[0011] The top end of the bolt is provided with a plum blossom groove, and the inner diameter of the riveting head is matched with the diameter of the bolt.

[0012] As a further description of the above technical scheme:

[0013] The outer wall of the bolt is fixedly connected with a rubber ring, and the outer wall of the rubber ring is arranged on the top of the fitting groove.

[0014] As a further description of the above technical scheme:

[0015] The inner wall of the bolt is provided with a ceramic coating.

[0016] As a further description of the above technical scheme:

[0017] The outer wall of the bolt is provided with an organic anticorrosive coating.

[0018] As a further description of the above technical scheme:

[0019] The bottom end of the riveting head is fixedly connected with a zinc-nickel alloy plating layer.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、The utility model discloses a riveting head and connecting position sealing device, which comprises a riveting head, a bolt, a sliding ring, a rubber air bag, a mounting groove, a sealing block and an exhaust port, wherein the bolt is fixedly connected to the inner wall of the riveting head, the sliding ring is arranged on the outer wall of the bolt, the rubber air bag is arranged in the mounting groove, the sealing block is arranged in the mounting groove, and the exhaust port is arranged on the mounting groove.

[0022] 2. In this utility model, the elastic blocking block has a chamfer on the side near the inner wall. The chamfer facilitates the subsequent locking process. The bolt is connected by the threads of the first and second threaded grooves. When the elastic blocking block is squeezed, it will expand to both sides to fix the rivet joint and the bolt. When the bolt is rotated into place, the elastic blocking blocks on both sides of the inner wall of the rivet joint will lock into the locking groove one by one, thereby completing the blocking and fixing of the bolt and preventing the bolt from loosening. Attached Figure Description

[0023] Figure 1 This is a perspective view of the sealing type press-fit nut proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the sealing type press-fit nut proposed in this utility model;

[0025] Figure 3 This is an exploded view of the sealing type press-fit nut proposed in this utility model;

[0026] Figure 4 This is an exploded view of the bolt of the sealing type press-fit nut proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of the sealing type press-fit nut proposed in this utility model.

[0028] Legend:

[0029] 1. Riveting post; 2. Anti-loosening mechanism; 201. Elastic blocking block; 202. Chamfer; 203. Threaded groove one; 204. Engaging groove; 205. Threaded groove two; 3. Riveting joint; 4. Riveting tooth; 5. Fixing ring; 6. Bolt; 7. Mounting groove; 8. Vent; 9. Mounting ring; 10. Sealing block; 11. Sliding ring; 12. Rubber airbag; 13. Air hole; 14. Wear-resistant ring; 15. Fitting groove; 16. Plum blossom groove; 17. Rubber ring; 18. Ceramic coating; 19. Organic anti-corrosion coating; 20. Zinc-nickel alloy plating. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 2 and Figure 3The utility model provides a kind of embodiment: sealed type riveting nut, including riveting post 1 and bolt 6, the top of riveting post 1 is communicated with riveting head 3, riveting post 1 and riveting head 3 are integrally formed, the outer wall of riveting head 3 is fixedly connected with riveting tooth 4, riveting head 3 and riveting tooth 4 are also integrally formed, riveting head 3 is placed in connecting hole, riveting tooth 4 is fixed with connecting hole by extruding riveting post 1, the top of riveting post 1 is fixedly connected with fixed ring 5, the top of fixed ring 5 is equipped with installation groove 7, the inner wall of installation groove 7 is slidably connected with sliding ring 11, sliding ring 11 is connected with fixed ring 5 by installation groove 7, so that sliding ring 11 can contract and slide, the outer wall of fixed ring 5 is equipped with exhaust port 8 around, the side of multiple exhaust ports 8 away from each other is communicated with mounting ring 9, the inner wall of multiple mounting rings 9 is rotatably connected with plugging block 10, mounting ring 9 is connected with plugging block 10, plugging block 10 can rotate, so that gas inside installation groove 7 is discharged outward, avoid external gas and liquid into installation groove 7 inside, the bottom of sliding ring 11 is fixedly connected with rubber air bag 12, the outer wall of rubber air bag 12 is equipped with air hole 13 around, rubber air bag 12 is arranged between installation groove 7 and sliding ring 11, when equipment extrudes riveting post 1, sliding ring 11 will be fitted with product surface, when rubber air bag 12 inside installation groove 7 is extruded by sliding ring 11, make the air in rubber air bag 12 inside discharge by exhaust port 8, make sliding ring 11 cooperate rubber air bag 12 seal the position between riveting head 3 and connection, improve service life, the top of sliding ring 11 is fixedly connected with wear ring 14, the inner wall of riveting post 1 is provided with anti-loosening mechanism 2, and the anti-loosening mechanism 2 is used to ensure the firmness of bolt 6;

[0032] Specific, the top of the riveting column 1 is communicated with the riveting head 3, the two parts are manufactured by one-piece molding, which ensures the integrity and strength of the structure, the outer wall of the riveting head 3 is fixed with the riveting tooth 4, similarly, the riveting head 3 and the riveting tooth 4 are also one-piece molding, which makes the riveting tooth 4 can be fixed with the connecting hole, so as to realize stable connection, the riveting head 3 is placed in the connecting hole, by extruding the riveting column 1, the riveting tooth 4 can be tightly fitted with the connecting hole, so as to achieve the fixed effect, the top of the riveting column 1 is also fixed with the fixed ring 5, the sliding ring 11 is connected with the fixed ring 5 through the installation slot 7, which makes the sliding ring 11 can be contracted and slid, so as to adapt to different installation requirements, the outer wall of the fixed ring 5 is provided with the exhaust port 8, the far side of the exhaust port 8 is communicated with the installation ring 9, the inner wall of the installation ring 9 is connected with the blocking piece 10, the installation ring 9 is connected with the blocking piece 10, the blocking piece 10 can rotate, so that the gas in the installation slot 7 is discharged outward, avoiding the external gas and liquid entering the installation slot 7; The rubber air bag 12 is arranged between the installation slot 7 and the sliding ring 11, when the equipment extrudes the riveting column 1, the sliding ring 11 will be fitted with the product surface, when the rubber air bag 12 in the installation slot 7 is extruded by the sliding ring 11, the air in the rubber air bag 12 is discharged through the exhaust port 8, the sliding ring 11 cooperates with the rubber air bag 12 to seal the position between the riveting head 3 and the connecting position, so as to improve the service life, the top of the sliding ring 11 is fixed with the wear-resistant ring 14, the wear-resistant ring 14 can reduce the wear of the sliding ring 11 in the use process.

[0033] Referring to Figure 1 , Figure 2 and Figure 4The anti-loosening mechanism 2 comprises two elastic blocking blocks 201, the far sides of the two elastic blocking blocks 201 are fixedly connected to the left and right sides of the inner wall of the riveting head 3, the elastic blocking blocks 201 are installed on the two sides of the inner wall of the riveting head 3, the adjacent sides of the two elastic blocking blocks 201 are provided with cut angles 202, and the side of the elastic blocking block 201 close to the inner wall is also provided with a cut angle 202, the cut angle 202 facilitates subsequent clamping processing and improves the clamping strength, the outer wall of the bolt 6 is provided with a screw groove one 203, the left and right sides of the outer wall of the bolt 6 are provided with clamping grooves 204, the outer wall of the riveting head 3 is provided with a screw groove two 205, the bolt 6 is threadedly connected with the screw groove two 205 through the screw groove one 203, the riveting head 3 and the bolt 6 are fixedly connected with each other, when the bolt 6 is rotated to a position, the elastic blocking blocks 201 on the two sides of the inner wall of the riveting head 3 are clamped into the clamping grooves 204 one by one, thereby the bolt 6 is fixedly blocked, the loosening of the bolt 6 is prevented, the inner wall top of the riveting head 3 is provided with a fitting groove 15, the outer wall of the bolt 6 is arranged on the outer wall of the fitting groove 15, the top end of the bolt 6 is provided with a keyway 16, the bolt 6 is connected with the fitting groove 15, the sealing property between the bolt 6 and the fitting groove 15 is ensured, the inner diameter of the riveting head 3 is matched with the diameter of the bolt 6, the outer wall of the bolt 6 is fixedly connected with a rubber ring 17, and the sealing property is further improved in cooperation with the rubber ring 17, and the outer wall of the rubber ring 17 is arranged on the top of the fitting groove 15.

[0034] Specifically, the elastic blocking blocks 201 are fixed on the left and right sides of the inner wall of the riveting head 3, the adjacent sides of the elastic blocking blocks 201 are provided with cut angles 202, which facilitates subsequent clamping processing and significantly improves the clamping strength; in addition, the outer wall of the bolt 6 is provided with a screw groove one 203, the left and right sides of the outer wall of the bolt 6 are provided with clamping grooves 204, so as to realize more accurate connection, the outer wall of the riveting head 3 is also provided with a screw groove two 205, the bolt 6 is threadedly connected with the screw groove two 205 through the screw groove one 203, thereby the riveting head 3 and the bolt 6 are fixedly connected, when the bolt 6 is rotated to a position, the elastic blocking blocks 201 on the two sides of the inner wall of the riveting head 3 are clamped into the clamping grooves 204 one by one, thereby the bolt 6 is fixedly blocked, the loosening of the bolt 6 is prevented, in order to further improve the sealing property, the inner wall top of the riveting head 3 is provided with a fitting groove 15, the outer wall of the bolt 6 is arranged on the outer wall of the fitting groove 15, the top end of the bolt 6 is provided with a keyway 16, the bolt 6 is connected with the fitting groove 15, the sealing property between the bolt 6 and the fitting groove 15 is ensured, in order to adapt to the diameter of the bolt 6, the inner diameter of the riveting head 3 is also designed to be matched; in addition, the outer wall of the bolt 6 is also fixed with a rubber ring 17, in cooperation with the use of the rubber ring 17, the sealing property of the whole is further improved, the outer wall of the rubber ring 17 is arranged on the top of the fitting groove 15, so as to ensure that an effective sealing barrier is formed at the connection.

[0035] Reference Figure 5 The inner wall of the bolt 6 is provided with a ceramic coating 18, the outer wall of the bolt 6 is provided with an organic anticorrosive coating 19, and the bottom end of the riveting head 3 is fixedly connected with a zinc-nickel alloy plating layer 20.

[0036] Specifically, the ceramic coating 18 is designed on the inner wall part of the bolt 6, which can provide excellent high-temperature resistance and wear resistance, and ensure that the bolt 6 still maintains good working condition in a high-temperature environment. At the same time, the outer wall part of the bolt 6 is covered with an organic anticorrosive coating 19, which effectively protects the bolt 6 from corrosion and chemical erosion, prolonging the service life of the bolt 6. In addition, the bottom end of the riveting head 3 is fixed with a layer of zinc-nickel alloy plating layer 20, which not only enhances the corrosion resistance of the riveting head 3, but also improves the durability and reliability of the overall structure.

[0037] Working principle: first, the riveting head 3 is placed in the connecting hole, and the riveting teeth 4 are fixed by extruding the riveting column 1, when the equipment extrudes the riveting column 1, the sliding ring 11 will be in close contact with the surface of the product, so that the sliding ring 11 can slide inwards, when the rubber air bag 12 inside the installation groove 7 is extruded by the sliding ring 11, the blocking block 10 can rotate, so that the air inside the rubber air bag 12 is discharged through the exhaust port 8, avoiding the entry of external gas and liquid into the installation groove 7, so that the sliding ring 11 cooperates with the rubber air bag 12 to seal the riveting head 3 and the connecting position, improving the service life;

[0038] Moreover, the elastic blocking blocks 201 are installed on both sides of the inner wall of the riveting head 3, and the adjacent side of each of the two elastic blocking blocks 201 is provided with a cut corner 202, and the side of the elastic blocking block 201 close to the inner wall is provided with a cut corner 202, which is convenient for subsequent clamping. The bolt 6 is connected with the screw groove two 205 through the screw groove one 203, and the elastic blocking block 201 will expand to both sides after being extruded, realizing the mutual fixation of the riveting head 3 and the bolt 6. When the bolt 6 is rotated to the position, the elastic blocking blocks 201 on both sides of the inner wall of the riveting head 3 will be clamped into the clamping grooves 204 one by one, thereby completing the blocking and fixation of the bolt 6, preventing the bolt 6 from loosening.

[0039] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. A sealing type press-fit nut, comprising a rivet post (1) and a bolt (6), characterized in that: The top of the riveting post (1) is connected to a riveting head (3), and the outer wall of the riveting head (3) is fixedly connected to a riveting tooth (4). The top of the riveting post (1) is fixedly connected to a fixing ring (5), and the top of the fixing ring (5) is provided with an installation groove (7). The inner wall of the installation groove (7) is slidably connected to a sliding ring (11). The outer wall of the fixing ring (5) is provided with exhaust ports (8) around its perimeter. The opposite sides of the multiple exhaust ports (8) are connected to installation rings (9). The inner walls of the multiple installation rings (9) are rotatably connected to sealing blocks (10). The bottom of the sliding ring (11) is fixedly connected to a rubber airbag (12), and the outer wall of the rubber airbag (12) is provided with air holes (13). The top of the sliding ring (11) is fixedly connected to a wear-resistant ring (14). The inner wall of the riveting post (1) is provided with an anti-loosening mechanism (2), which is used to ensure the firmness of the bolt (6).

2. The sealing type press-fit nut according to claim 1, characterized in that: The anti-loosening mechanism (2) includes two elastic blocking blocks (201). The two elastic blocking blocks (201) are fixedly connected to the left and right sides of the inner wall of the rivet joint (3) on opposite sides. The two elastic blocking blocks (201) are provided with chamfers (202) on adjacent sides. The bolt (6) is provided with a first thread groove (203) on its outer wall. The bolt (6) is provided with a locking groove (204) on both the left and right sides of its outer wall. The rivet joint (3) is provided with a second thread groove (205) on its outer wall.

3. The sealing type press-fit nut according to claim 1, characterized in that: The inner wall of the rivet (3) is provided with a fitting groove (15), and the outer wall of the bolt (6) is provided on the outer wall of the fitting groove (15).

4. The sealing type press-fit nut according to claim 1, characterized in that: The top of the bolt (6) is provided with a plum blossom groove (16), and the inner diameter of the rivet joint (3) is adapted to the diameter of the bolt (6).

5. The sealing type press-fit nut according to claim 1, characterized in that: A rubber ring (17) is fixedly connected to the outer wall of the bolt (6), and the outer wall of the rubber ring (17) is set at the top of the fitting groove (15).

6. The sealing type press-fit nut according to claim 1, characterized in that: The inner wall of the bolt (6) is provided with a ceramic coating (18).

7. The sealing type press-fit nut according to claim 1, characterized in that: The outer wall of the bolt (6) is provided with an organic anti-corrosion coating (19).

8. The sealing type press-fit nut according to claim 1, characterized in that: The bottom end of the rivet (3) is fixedly connected with a zinc-nickel alloy plating layer (20).

Images