Waterproof pull rivet limiting nut

Abstract

The utility model discloses a waterproof pull rivet limiting nut, which relates to a pull rivet nut and comprises a pull rivet nut main body, an inner threaded hole is arranged in the pull rivet nut main body, a deformation layer is integrally formed on the outer surface of the pull rivet nut main body, and a fixing piece is movably arranged on the pull rivet nut main body. A sealing ring is fixedly arranged at the top of the fixing piece; by rotating the fixing piece, the fixing piece can drive the sealing ring to rotate on the outer thread and move towards the deformation layer until the sealing ring abuts against the deformation layer, the sealing ring can be firmly clamped through deformation of the deformation layer and the fixing piece, the waterproofness of the sealing ring can be guaranteed, the problem that the sealing ring falls off can be avoided, and in addition, the sealing ring can be prevented from falling off. When water is discharged, water is soaked on the sealing ring, and the sealing ring is made of ethylene-propylene-diene monomer, so that the sealing ring can be expanded to extrude the fixed part, the problem of rotation of the fixed part due to external force is avoided, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet nuts, in particular to a waterproof rivet limiting nut. Background Art

[0002] Pull rivet nuts, pull caps, instant pull caps, in the field of fastening, are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, decoration, etc. It is developed to solve the shortcomings of easy melting of welding nuts on metal sheets and thin tubes, and easy slipping of tapping internal threads. It does not require tapping internal threads, does not require welding nuts, has strong riveting efficiency, and is easy to use.

[0003] In order to improve the sealing performance of existing rivet nuts, a water-swellable sealing ring is usually provided on the rivet nuts. When the sealing ring meets water, it can absorb water and swell to improve the sealing performance. However, since the existing sealing ring is usually adhered to the rivet nut with glue, the expanded sealing ring will expand the glue and fall off.

[0004] To this end, we designed a waterproof rivet limit nut to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a waterproof rivet limit nut, including a rivet nut body, an internal thread hole is opened inside the rivet nut body, a deformation layer is integrally formed on the outer surface of the rivet nut body, a fixing piece is movably arranged on the rivet nut body, a sealing ring is fixedly arranged on the top of the fixing piece, an external thread is arranged on the outer surface of the rivet nut body, an internal thread is opened on the fixing piece, the fixing piece is threadedly sleeved on the external thread, and the sealing ring is made of EPDM rubber.

[0006] Furthermore, it also includes a limiting component for further limiting the fixing part, the limiting component includes a slide plate, the slide plate is slidably set at the bottom of the fixing part, a positioning column is fixedly installed on one side of the slide plate, a positioning groove is opened on the rivet nut body, the other end of the positioning column is slidably inserted in the positioning groove, a support spring is set on one side of the slide plate, and the other end of the support spring is set in the fixing part.

[0007] Furthermore, there are multiple groups of positioning grooves, and the multiple groups of positioning grooves are arranged at equal intervals on the outside of the rivet nut body in the vertical direction. The number of the multiple groups of positioning grooves is multiple, and the multiple positioning grooves are arranged at equal intervals around the outside of the rivet nut body. After the sealing ring is positioned, the slide plate is pushed to separate the slide plate from the permanent magnet. At this time, the support spring pulls the slide plate to slide in the slide groove along the direction set by the guide rod due to its own elastic force, and the positioning column is inserted into the corresponding positioning groove, which can further limit the fixing part.

[0008] Furthermore, a sliding groove is provided at the bottom of the fixing member, the sliding plate is slidably connected in the sliding groove, and two ends of the supporting spring are respectively fixedly connected to the sliding plate and the inner wall of the sliding groove.

[0009] Furthermore, a guide rod is inserted into the slide plate, and both ends of the guide rod are fixedly installed in the slide groove.

[0010] Furthermore, a permanent magnet is fixedly installed in the slide groove, the slide plate is made of iron, and the slide plate is magnetically connected to the permanent magnet.

[0011] Furthermore, the number of the permanent magnets is two, and the two permanent magnets are symmetrically installed on the inner wall of the slide groove. The arrangement of the two permanent magnets can improve the limiting ability of the slide plate.

[0012] Furthermore, two pull blocks are fixedly mounted on the bottom of the fixing member to assist personnel in rotating the fixing member.

[0013] Compared with the prior art, the beneficial effects of the utility model are: 1. By rotating the fixing part, the fixing part can drive the sealing ring to rotate on the external thread and move toward the deformation layer until the sealing ring and the deformation layer are abutted. The deformation of the deformation layer and the fixing part can be used to firmly clamp the sealing ring, which can not only ensure its waterproofness, but also avoid the problem of the sealing ring falling off. In addition, when draining water, water soaks on the sealing ring. Since the sealing ring is made of EPDM rubber, the sealing ring can expand and squeeze the fixing part, avoiding the problem of the fixing part rotating due to external force, thereby improving stability.

[0014] 2. By pushing the slide plate, the slide plate can be separated from the permanent magnet. At this time, the support spring pulls the slide plate to slide in the slide groove along the direction set by the guide rod due to its own elastic force, and the positioning column is inserted into the corresponding positioning groove, which can further limit the fixing part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when looking upwards;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the side exterior of the utility model;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1. rivet nut body; 2. internal thread hole; 3. deformation layer; 4. fixing piece; 5. sealing ring; 6. external thread; 7. slide plate; 8. positioning column; 9. positioning groove; 10. support spring; 11. slide groove; 12. guide rod; 13. permanent magnet; 14. pull block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a waterproof rivet limit nut, including a rivet nut body 1, an internal thread hole 2 is opened inside the rivet nut body 1, a deformation layer 3 is integrally formed on the outer surface of the rivet nut body 1, a fixing part 4 is movably arranged on the rivet nut body 1, a sealing ring 5 is fixedly arranged on the top of the fixing part 4, an external thread 6 is arranged on the outer surface of the rivet nut body 1, an internal thread is opened on the fixing part 4, the fixing part 4 is threadedly sleeved on the external thread 6, and the sealing ring 5 is made of EPDM rubber.

[0022] During the specific implementation, firstly, the rivet nut body 1 is riveted and positioned on the iron sheet or other fixing parts by using a rivet gun. At this time, the deformation layer 3 will be deformed and enlarged due to the extrusion pressure. The rivet nut body 1 can be fixed by using the deformation of the deformation layer 3, and then the fixing part 4 is rotated to make the fixing part 4 drive the sealing ring 5 to rotate on the external thread 6 and move toward the deformation layer 3 until the sealing ring 5 and the deformation layer 3 are abutted. The deformation of the deformation layer 3 and the fixing part 4 can be used to firmly clamp the sealing ring 5, which can not only ensure its waterproofness, but also avoid the problem of the sealing ring 5 falling off. In addition, when draining water, water soaks in the sealing ring 5. Since the sealing ring 5 is made of EPDM rubber, the sealing ring 5 can be expanded to squeeze the fixing part 4, thereby avoiding the problem of the fixing part 4 rotating due to external force, thereby improving stability.

[0023] See also Figure 1-4The figure shows that it also includes a limiting component for further limiting the fixing member 4, the limiting component includes a slide plate 7, the slide plate 7 is slidably arranged at the bottom of the fixing member 4, a positioning column 8 is fixedly installed on one side of the slide plate 7, a positioning groove 9 is opened on the rivet nut body 1, the other end of the positioning column 8 is slidably inserted in the positioning groove 9, a support spring 10 is arranged on one side of the slide plate 7, the other end of the support spring 10 is arranged in the fixing member 4, there are multiple groups of positioning grooves 9, and the multiple groups of positioning grooves 9 are arranged on the outside of the rivet nut body 1 at equal intervals in the vertical direction. The number of the multiple groups of positioning grooves 9 is multiple, and the multiple positioning grooves 9 are evenly spaced around the outer side of the rivet nut body 1. A slide groove 11 is provided at the bottom of the fixing member 4. The slide plate 7 is slidably connected in the slide groove 11. The two ends of the support spring 10 are respectively fixedly connected to the slide plate 7 and the inner wall of the slide groove 11. A guide rod 12 is inserted in the slide plate 7. Both ends of the guide rod 12 are fixedly installed in the slide groove 11. A permanent magnet 13 is fixedly installed in the slide groove 11. The material of the slide plate 7 is iron, and the slide plate 7 is magnetically connected to the permanent magnet 13.

[0024] In the specific implementation, on the basis of the above implementation, after the sealing ring 5 is positioned, the slide plate 7 is pushed to separate the slide plate 7 from the permanent magnet 13. At this time, the support spring 10 pulls the slide plate 7 to slide in the slide groove 11 along the direction set by the guide rod 12 due to its own elastic force, and inserts the positioning column 8 into the corresponding positioning groove 9, which can further limit the fixing part 4.

[0025] See also Figure 1-4 The number of the permanent magnets 13 is two, and the two permanent magnets 13 are symmetrically mounted on the inner wall of the slide slot 11. The arrangement of the two permanent magnets 13 can improve the limiting capability of the slide plate 7.

[0026] See also Figure 1-4 The bottom of the fixing member 4 is fixedly mounted with two pull blocks 14. The fixing member 4 can be rotated by an auxiliary person.

[0027] Working principle: when in use, first use a rivet gun to rivet the rivet nut body 1 to position it on the iron sheet or other fixing parts. At this time, the deformation layer 3 will be deformed and enlarged due to the extrusion force. The rivet nut body 1 can be fixed by using the deformation of the deformation layer 3. Then rotate the fixing part 4 so that the fixing part 4 drives the sealing ring 5 to rotate on the external thread 6 and move toward the deformation layer 3 until the sealing ring 5 and the deformation layer 3 are abutted. The deformation of the deformation layer 3 and the fixing part 4 can be used to firmly clamp the sealing ring 5, which can ensure its waterproofness and avoid the problem of the sealing ring 5 falling off. In addition, when draining water, water soaks on the sealing ring 5. Since the sealing ring 5 is made of EPDM, the sealing ring 5 can be expanded to squeeze the fixing part 4, which avoids the problem of the fixing part 4 rotating due to external force, thereby improving stability.

[0028] In addition, after the sealing ring 5 is positioned, the slide plate 7 is pushed to separate the slide plate 7 from the permanent magnet 13. At this time, the support spring 10 pulls the slide plate 7 to slide in the slide groove 11 along the direction set by the guide rod 12 due to its own elastic force, and inserts the positioning column 8 into the corresponding positioning groove 9, which can further limit the fixing part 4.

Claims

1. A waterproof rivet limit nut, comprising a rivet nut body (1), wherein an internal threaded hole (2) is provided inside the rivet nut body (1), and a deformation layer (3) is integrally formed on the outer surface of the rivet nut body (1), characterized in that: A fixing piece (4) is movably provided on the rivet nut body (1), a sealing ring (5) is fixedly provided on the top of the fixing piece (4), an external thread (6) is provided on the outer surface of the rivet nut body (1), an internal thread is provided on the fixing piece (4), the fixing piece (4) is threadedly sleeved on the external thread (6), and the sealing ring (5) is made of EPDM rubber.

2. The waterproof rivet limiting nut according to claim 1, characterized in that: The invention also comprises a limiting assembly for further limiting the position of the fixing member (4), wherein the limiting assembly comprises a slide plate (7), wherein the slide plate (7) is slidably arranged at the bottom of the fixing member (4), a positioning column (8) is fixedly mounted on one side of the slide plate (7), a positioning groove (9) is provided on the rivet nut body (1), the other end of the positioning column (8) is slidably inserted into the positioning groove (9), a support spring (10) is arranged on one side of the slide plate (7), and the other end of the support spring (10) is arranged in the fixing member (4).

3. The waterproof rivet limiting nut according to claim 2, characterized in that: There are multiple groups of positioning grooves (9), and the multiple groups of positioning grooves (9) are arranged at equal intervals in the vertical direction on the outer side of the rivet nut body (1). The number of the multiple groups of positioning grooves (9) is multiple, and the multiple positioning grooves (9) are arranged at equal intervals around the outer side of the rivet nut body (1).

4. The waterproof rivet limiting nut according to claim 2, characterized in that: A sliding groove (11) is provided at the bottom of the fixing member (4), the sliding plate (7) is slidably connected in the sliding groove (11), and the two ends of the supporting spring (10) are respectively fixedly connected to the sliding plate (7) and the inner side wall of the sliding groove (11).

5. The waterproof rivet limiting nut according to claim 4, characterized in that: A guide rod (12) is inserted into the slide plate (7), and both ends of the guide rod (12) are fixedly mounted in the slide groove (11).

6. The waterproof rivet limiting nut according to claim 4, characterized in that: A permanent magnet (13) is fixedly mounted in the slide groove (11); the material of the slide plate (7) is iron; and the slide plate (7) and the permanent magnet (13) are magnetically connected.

7. The waterproof rivet limiting nut according to claim 6, characterized in that: The number of the permanent magnets (13) is two, and the two permanent magnets (13) are symmetrically mounted on the inner wall of the slide groove (11).

8. The waterproof rivet limiting nut according to claim 1, characterized in that: Two pull blocks (14) are fixedly mounted on the bottom of the fixing member (4).

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