Nut for new energy automobile

Abstract

The invention relates to the technical field of nuts, and discloses a nut for a new energy automobile, which solves the problems of low strength and poor connection sealing performance of the existing nut, and comprises a nut body consisting of a rivet nut main body and an auxiliary sealing limiting piece, the rivet nut body is composed of a limiting end plate, a rivet deformation connecting section and a rivet extrusion driving section, a threaded inner groove is formed in the rivet extrusion driving section, a first O-shaped sealing ring and a second O-shaped sealing ring are arranged on the side edge of one end of the limiting end plate, and a plurality of limiting assemblies are arranged on the outer side edge of the rivet extrusion driving section. The limiting assembly is composed of a limiting connecting column, a sleeve, a limiting arm and a push spring, the auxiliary sealing limiting piece is composed of a limiting sleeve and a limiting top ring, a third O-shaped sealing ring is arranged at one end of the limiting sleeve, a fourth O-shaped sealing ring is arranged at one end of the limiting top ring, and a limiting clamping groove is formed in the end, away from the limiting top ring, of the limiting sleeve. By means of the nut, the connection strength and the connection sealing performance can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of nuts, and in particular relates to a nut for new energy vehicles. Background Art

[0002] In the production process of new energy vehicles, many connection positions are fixed with rivet nuts, especially the body and chassis of new energy vehicles. The existing rivet nuts have low strength when used. During long-term use, especially when used to connect thicker parts, the connection may become loose. During the installation process, there is also the possibility of slipping. In addition, the existing rivet nuts also have the disadvantage of poor sealing between the connecting parts. For the connecting parts with sealing requirements, the use effect can not reach the ideal state. Therefore, the present application proposes a nut for new energy vehicles. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a nut for new energy vehicles, which effectively solves the problems of low strength and poor connection sealing of the existing nut.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nut for new energy vehicles, comprising a nut body, wherein the nut body is composed of a rivet nut body and an auxiliary sealing limiter, the auxiliary sealing limiter is sleeved on the outer surface of the rivet nut body, the rivet nut body is connected between a first part to be connected and a second part to be connected of the new energy vehicle, the rivet nut body is composed of a limit end plate, a rivet deformation connection section and a rivet extrusion drive section, the limit end plate is fixedly connected to one end of the rivet deformation connection section, the rivet extrusion drive section is fixedly connected to one end of the rivet deformation connection section away from the limit end plate, a threaded inner groove is provided inside the rivet extrusion drive section, an O-ring 1 and an O-ring 2 are provided on the side of the limit end plate close to one end of the rivet deformation connection section, and a plurality of limit components are provided on the outer side of the rivet extrusion drive section. The limit assembly is composed of a limit connecting column, a sleeve, a limit arm and a push spring. The limit connecting column is fixedly connected to the rivet extrusion driving section, the sleeve is sleeved on the limit connecting column, the limit arm is fixedly connected to the side of the sleeve, the push spring is fixedly connected between the limit arm and the rivet extrusion driving section, the auxiliary sealing limit member is composed of a limit sleeve and a limit top ring, the limit sleeve is sleeved on the rivet extrusion driving section, the limit top ring is fixedly connected to one end of the limit sleeve close to the limit end plate, an O-ring three is provided at one end of the limit sleeve close to the limit top ring, an O-ring four is provided at one end of the limit top ring close to the limit end plate, an inner groove one is opened at the center position of the interior of the limit sleeve, an inner groove two is opened inside the limit top ring, the inner diameter of the inner groove two is larger than the inner diameter of the inner groove one, and a plurality of limit slots matching the limit arm are opened at one end of the limit sleeve away from the limit top ring.

[0005] Preferably, the limiting end plate, the rivet deformation connection section and the rivet extrusion drive section are an integrated structure, and the limiting sleeve and the limiting top ring are an integrated structure.

[0006] Preferably, the outer surface of the rivet deformation connecting section is provided with a plurality of stripe patterns one, and the end of the limiting end plate close to the rivet deformation connecting section is provided with a plurality of stripe patterns two.

[0007] Preferably, a hexagonal groove is provided at the center position inside the limiting end plate, a positioning through groove is provided at one end inside the rivet deformation connection section, and a conical transition groove is provided at the other end inside the rivet deformation connection section, and the hexagonal groove is a connected structure with the positioning through groove, the conical transition groove and the threaded inner groove.

[0008] Preferably, the side edge of the limiting end plate close to one end of the riveted deformation connection section is provided with an annular sealing ring installation groove 1 and an annular sealing ring installation groove 2 matching with the O-ring 1 and the O-ring 2.

[0009] Preferably, an auxiliary limiting pin is fixedly provided on the side of the limiting end plate close to one end of the riveted deformation connection section, and a plurality of limiting holes matching the auxiliary limiting pin are opened on the side of a connection position of the new energy vehicle to be connected.

[0010] Preferably, the arc-shaped outer surface of the pull rivet extrusion drive section is provided with a plurality of strip-shaped installation grooves matching the limit assembly, and the interior of the strip-shaped installation grooves is provided with spring installation grooves matching the push springs.

[0011] Preferably, the limiting connecting column is welded to one end inside the strip mounting groove, the sleeve is sleeved on the limiting connecting column and slidably connected thereto, and the side of the sleeve fits with one end inside the strip mounting groove.

[0012] Preferably, a limiting tooth is fixedly provided at one end of the limiting arm away from the sleeve, and a limiting tooth groove matching the limiting tooth is provided inside the limiting groove.

[0013] Preferably, one end of the limiting sleeve is provided with an annular sealing ring installation groove three matching with the O-ring three, and one end of the limiting top ring is provided with an annular sealing ring installation groove four matching with the O-ring four.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) During operation, by providing a rivet nut body consisting of a limiting end plate, a rivet deformation connection section and a rivet extrusion drive section, the rivet deformation connection section can be extruded and deformed during connection, and the connection limiting function can be achieved through the riveted section formed after the extrusion deformation. By providing a limiting assembly consisting of a limiting connection column, a sleeve, a limiting arm and a push spring, and an auxiliary sealing limiting member consisting of a limiting sleeve and a limiting top ring, the connection parts can be auxiliary limited after the rivet nut body is riveted, thereby improving the connection strength of the entire nut and reducing the possibility of loosening in the later stage. By providing an inner hexagonal groove, a positioning through groove and a conical transition groove, sliding can be avoided when the nut is riveted by a rivet gun, thereby improving the stability of the rivet operation. By providing an auxiliary limiting pin and a limiting hole, sliding between the nut and the workpiece can be avoided when the nut is riveted by a rivet gun, thereby further improving the stability of the rivet operation. (2) By providing O-ring 1 and O-ring 2, the sealing performance between the limit end plate and the connecting component can be improved. By providing O-ring 3 and O-ring 4, the sealing performance between the limit sleeve and the limit top ring and the connecting component can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture: Figure 1 This is a schematic diagram of the structure of a nut for a new energy vehicle of the present invention; Figure 2 This is one of the cross-sectional views of a nut for a new energy vehicle of the present invention; Figure 3 This is the second cross-sectional view of the nut for new energy vehicles of the present invention; Figure 4 This is the third cross-sectional view of the nut for new energy vehicles of the present invention; Figure 5 This is a cross-sectional view of the main body of the rivet nut of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged view of the middle A; Figure 7 This is a cross-sectional view of the auxiliary sealing limiter of the present invention; Figure 8 It is a schematic diagram of the structure of the limit assembly of the present invention; In the figure: 1. Nut body; 2. Rivet nut body; 3. Auxiliary sealing limiter; 4. New energy vehicle to be connected part 1; 5. New energy vehicle to be connected part 2; 6. Limiting end plate; 7. Rivet deformation connection section; 8. Rivet extrusion drive section; 9. Threaded inner groove; 10. O-ring 1; 11. O-ring 2; 12. Limiting assembly; 13. Limiting connecting column; 14. Sleeve; 15. Limiting arm; 16. Push spring; 17. Limiting sleeve; 18. Limiting top ring; 19. O-ring 3; 20. O-ring four; 21, inner groove one; 22, inner groove two; 23, limit card slot; 24, strip pattern one; 25, strip pattern two; 26, hexagonal groove; 27, positioning through groove; 28, tapered transition groove; 29, annular sealing ring installation groove one; 30, annular sealing ring installation groove two; 31, auxiliary limit pin; 32, limit hole; 33, strip installation groove; 34, spring installation groove; 35, limit card tooth; 36, limit tooth groove; 37, annular sealing ring installation groove three; 38, annular sealing ring installation groove four. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Embodiment 1, by Figures 1 to 8The present invention provides a nut for new energy vehicles, including a nut body 1, the nut body 1 is composed of a rivet nut body 2 and an auxiliary sealing limiter 3, the auxiliary sealing limiter 3 is sleeved on the outer surface of the rivet nut body 2, the rivet nut body 2 is connected between a new energy vehicle to-be-connected part 1 4 and a new energy vehicle to-be-connected part 2 5, the rivet nut body 2 is composed of a limiting end plate 6, a rivet deformation connection section 7 and a rivet extrusion drive section 8, the limiting end plate 6 is fixedly connected to one end of the rivet deformation connection section 7, the rivet extrusion drive section 8 is fixedly connected to the end of the rivet deformation connection section 7 away from the limiting end plate 6, a threaded inner groove 9 is provided inside the rivet extrusion drive section 8, an O-ring 10 and an O-ring 2 11 are arranged on the side of the limiting end plate 6 close to one end of the rivet deformation connection section 7, a plurality of limiting components 12 are arranged on the outer side of the rivet extrusion drive section 8, and the limiting component 12 is composed of a limiting connection column 13, a sleeve 14, a limiting arm 15 and a push spring 16, the limiting connecting column 13 is fixedly connected to the rivet extrusion driving section 8, the sleeve 14 is sleeved on the limiting connecting column 13, the limiting arm 15 is fixedly connected to the side of the sleeve 14, the push spring 16 is fixedly connected between the limiting arm 15 and the rivet extrusion driving section 8, the auxiliary sealing limiting member 3 is composed of a limiting sleeve 17 and a limiting top ring 18, the limiting sleeve 17 is sleeved on the rivet extrusion driving section 8, and the limiting top ring 18 is fixedly connected to one end of the limiting sleeve 17 close to the limiting end plate 6 An O-ring 3 19 is provided at one end of the limiting sleeve 17 close to the limiting top ring 18, and an O-ring 4 20 is provided at one end of the limiting top ring 18 close to the limiting end plate 6. An inner groove 1 21 is provided at the center of the limiting sleeve 17, and an inner groove 22 is provided inside the limiting top ring 18. The inner diameter of the inner groove 22 is greater than the inner diameter of the inner groove 1 21. A plurality of limiting card grooves 23 matching the limiting arm 15 are provided at one end of the limiting sleeve 17 away from the limiting top ring 18; During installation, the rivet nut body 2 is inserted into the connecting holes on the new energy vehicle to be connected part 1 4 and the new energy vehicle to be connected part 2 5, and then the auxiliary sealing limit piece 3 is sleeved on the rivet nut body 2, and the auxiliary sealing limit piece 3 is limited by the limit assembly 12, so that the limit arm 15 is inserted into the limit slot 23. When the auxiliary sealing limit piece 3 is installed, the limit arm 15 rotates around the limit connecting column 13. After the installation is completed, the limit arm 15 is driven to reset by the push spring 16, and the rivet gun is inserted into the rivet nut body 2 to perform the riveting operation on the rivet nut body 2. The rivet extrusion driving section 8 is subjected to the action of the rivet gun to generate an extrusion force on the rivet deformation connecting section 7, and the rivet deformation connecting section 7 is squeezed and deformed. At this time, the new energy vehicle to be connected part 1 4 and the new energy vehicle to be connected part 2 5 are connected and fixed through the deformed rivet deformation connecting section 7 and the limit end plate 6 (such as Figure 3 and Figure 4As shown in the figure, due to the deformation of the riveted deformation connection section 7, the length is shortened, and the limiting sleeve 17 and the limiting top ring 18 move at this time, and the limiting top ring 18 fits with the side of the new energy vehicle to be connected part 2 5, further forming a limiting effect, thereby improving the connection strength, and the O-ring 10 and the O-ring 2 11 are located between the limiting end plate 6 and the new energy vehicle to be connected part 1 4, thereby improving the connection sealing between the limiting end plate 6 and the new energy vehicle to be connected part 1 4, and the O-ring 3 19 is located between the limiting sleeve 17 and the new energy vehicle to be connected part 2 5, thereby improving the sealing of the connection position between the limiting sleeve 17 and the new energy vehicle to be connected part 2 5, and the O-ring 4 20 is located between the limiting top ring 18 and the new energy vehicle to be connected part 2 5, thereby improving the sealing between the limiting top ring 18 and the new energy vehicle to be connected part 2 5, thereby improving the sealing of the entire connection position, and improving the waterproof and dustproof performance.

[0019] Embodiment 2, based on embodiment 1, Figures 4 to 8 It is shown that the limiting end plate 6, the rivet deformation connection section 7 and the rivet extrusion drive section 8 are an integrated structure, the limiting sleeve 17 and the limiting top ring 18 are an integrated structure, the outer surface of the rivet deformation connection section 7 is provided with a plurality of stripe patterns 24, and one end of the limiting end plate 6 close to the rivet deformation connection section 7 is provided with a plurality of stripe patterns 25; By setting the limiting end plate 6, the rivet deformation connection section 7 and the rivet extrusion drive section 8 as an integrated structure, the limiting sleeve 17 and the limiting top ring 18 are an integrated structure, so that the overall strength can be improved, and no welding connection is required. The strip pattern 1 24 and the strip pattern 2 25 can increase the friction force to avoid slipping during connection, and also effectively avoid sliding during later use; A hexagonal groove 26 is provided at the center of the limiting end plate 6, a positioning groove 27 is provided at one end of the rivet deformation connection section 7, and a conical transition groove 28 is provided at the other end of the rivet deformation connection section 7. The hexagonal groove 26 is connected to the positioning groove 27, the conical transition groove 28 and the threaded inner groove 9. The hexagonal groove 26 can cooperate with the rivet gun to achieve a limiting effect, the positioning through groove 27 can cooperate with the rivet gun to achieve a deformation limiting effect, the conical transition groove 28 can avoid obstruction to the rivet gun, and improve the convenience of installing the rivet gun. The threaded inner groove 9 can be threadedly connected with the rivet gun to achieve the rivet operation; The side edge of the limiting end plate 6 near one end of the riveted deformation connecting section 7 is provided with an annular sealing ring installation groove 1 29 and an annular sealing ring installation groove 2 30 matching the O-ring 10 and the O-ring 2 11; The annular sealing ring installation groove 1 29 and the annular sealing ring installation groove 2 30 can respectively install the O-type sealing ring 10 and the O-type sealing ring 2 11; An auxiliary limiting pin 31 is fixedly arranged on the side of the limiting end plate 6 near one end of the riveted deformation connection section 7, and a plurality of limiting holes 32 matching the auxiliary limiting pin 31 are opened on the side of the connection position of the new energy vehicle to be connected part 4; The auxiliary limiting pin 31 and the limiting hole 32 can achieve the limiting effect, avoiding the slipping of the limiting end plate 6 and the new energy vehicle to be connected part 4 during riveting, and also avoiding the slipping after connection, thereby improving stability; The arc-shaped outer surface of the pull riveting extrusion driving section 8 is provided with a plurality of strip-shaped mounting grooves 33 matching the limit assembly 12, and the inside of the strip-shaped mounting groove 33 is provided with a spring mounting groove 34 matching the push spring 16, the limit connecting column 13 is welded and connected to one end inside the strip-shaped mounting groove 33, the sleeve 14 is sleeved on the limit connecting column 13 and slidably connected thereto, and the side of the sleeve 14 is fitted with one end inside the strip-shaped mounting groove 33; The strip-shaped installation groove 33 can realize the installation of the limit assembly 12, and the spring installation groove 34 can install the push spring 16. The sleeve 14 is sleeved on the limit connection column 13 and slidably connected thereto, so that the sleeve 14 can rotate, and the side of the sleeve 14 fits with one end inside the strip-shaped installation groove 33, so as to increase the force, so that the limit connection column 13 and the sleeve 14 are stressed at the same time, thereby improving the strength; A limiting tooth 35 is fixedly disposed at one end of the limiting arm 15 away from the sleeve 14, and a limiting tooth groove 36 matching the limiting tooth 35 is formed inside the limiting groove 23; The limiting teeth 35 and the limiting tooth grooves 36 can realize auxiliary limiting, further improving the stability of the connection between the limiting arm 15 and the limiting groove 23, and avoiding separation; An annular sealing ring installation groove 37 matching with the O-ring 3 19 is formed at one end of the limiting sleeve 17, and an annular sealing ring installation groove 4 38 matching with the O-ring 4 20 is formed at one end of the limiting top ring 18; The annular sealing ring installation groove three 37 and the annular sealing ring installation groove four 38 can respectively install the O-ring three 19 and the O-ring four 20.

[0020] During operation, by providing a rivet nut body consisting of a limiting end plate, a rivet deformation connection section and a rivet extrusion drive section, the rivet deformation connection section can be extruded and deformed during connection, and the connection limiting effect can be achieved through the riveted section formed after the extrusion and deformation. By providing a limiting assembly consisting of a limiting connection column, a sleeve, a limiting arm and a push spring, and an auxiliary sealing limiting piece consisting of a limiting sleeve and a limiting top ring, auxiliary limiting of the connection parts can be achieved after the rivet nut body is riveted, thereby improving the connection strength of the entire nut and reducing the possibility of loosening in the later period. The hexagonal groove, the positioning through groove and the tapered transition groove can avoid sliding when the nut is riveted with a rivet gun, thereby improving the stability of the riveting operation; by providing an auxiliary limit pin and a limit hole, the nut and the workpiece can be prevented from sliding when the nut is riveted with a rivet gun, thereby further improving the stability of the riveting operation; by providing O-ring 1 and O-ring 2, the sealing between the limit end plate and the connecting component can be improved; by providing O-ring 3 and O-ring 4, the sealing between the limit sleeve and the limit top ring and the connecting component can be improved.

Claims

1. A nut for a new energy vehicle, comprising a nut body (1), characterized in that: The nut body (1) is composed of a rivet nut body (2) and an auxiliary sealing limiter (3); the auxiliary sealing limiter (3) is sleeved on the outer surface of the rivet nut body (2); the rivet nut body (2) is connected between a first part to be connected (4) of a new energy vehicle and a second part to be connected (5) of a new energy vehicle; the rivet nut body (2) is composed of a limiter end plate (6), a rivet deformation connection section (7) and a rivet extrusion drive section (8); the limiter end plate (6) is fixedly connected to one end of the rivet deformation connection section (7); the rivet extrusion drive section (8) is fixedly connected to the rivet deformation connection section (7); The rivet extrusion drive section (8) is fixedly connected to one end of the rivet deformation connection section (7) away from the limiting end plate (6), a threaded inner groove (9) is provided inside the rivet extrusion drive section (8), an O-ring 1 (10) and an O-ring 2 (11) are provided on the side of the limiting end plate (6) close to one end of the rivet deformation connection section (7), and a plurality of limiting components (12) are provided on the outer side of the rivet extrusion drive section (8), the limiting components (12) are composed of a limiting connection column (13), a sleeve (14), a limiting arm (15) and a push spring (16), and the limiting connection column (13) is connected to the limiting end plate (11). The rivet extrusion drive section (8) is fixedly connected, the sleeve (14) is sleeved on the limit connection column (13), the limit arm (15) is fixedly connected to the side of the sleeve (14), the push spring (16) is fixedly connected between the limit arm (15) and the rivet extrusion drive section (8), the auxiliary sealing limit member (3) is composed of a limit sleeve (17) and a limit top ring (18), the limit sleeve (17) is sleeved on the rivet extrusion drive section (8), the limit top ring (18) is fixedly connected to one end of the limit sleeve (17) close to the limit end plate (6), and the limit sleeve (1 7) An O-ring three (19) is provided at one end close to the limiting top ring (18), an O-ring four (20) is provided at one end of the limiting top ring (18) close to the limiting end plate (6), an inner groove one (21) is provided at the center position inside the limiting sleeve (17), an inner groove two (22) is provided inside the limiting top ring (18), the inner diameter of the inner groove two (22) is larger than the inner diameter of the inner groove one (21), and a plurality of limiting grooves (23) matching the limiting arm (15) are provided at one end of the limiting sleeve (17) away from the limiting top ring (18).

2. A nut for new energy vehicles according to claim 1, characterized in that: The limiting end plate (6), the rivet deformation connection section (7) and the rivet extrusion drive section (8) are an integrated structure, and the limiting sleeve (17) and the limiting top ring (18) are an integrated structure.

3. A nut for new energy vehicles according to claim 1, characterized in that: The outer surface of the rivet deformation connection section (7) is provided with a plurality of first stripe patterns (24), and one end of the limiting end plate (6) close to the rivet deformation connection section (7) is provided with a plurality of second stripe patterns (25).

4. A nut for new energy vehicles according to claim 1, characterized in that: A hexagonal groove (26) is provided at the center of the limiting end plate (6), a positioning through groove (27) is provided at one end of the rivet deformation connection section (7), and a conical transition groove (28) is provided at the other end of the rivet deformation connection section (7), and the hexagonal groove (26), the positioning through groove (27), the conical transition groove (28) and the threaded inner groove (9) are in a connected structure.

5. The nut for new energy vehicles according to claim 1, characterized in that: The side edge of the limiting end plate (6) close to one end of the rivet deformation connection section (7) is provided with an annular sealing ring installation groove 1 (29) and an annular sealing ring installation groove 2 (30) which match the O-ring 1 (10) and the O-ring 2 (11).

6. A nut for new energy vehicles according to claim 1, characterized in that: An auxiliary limiting pin (31) is fixedly provided on the side of the limiting end plate (6) close to one end of the riveted deformation connection section (7), and a plurality of limiting holes (32) matching the auxiliary limiting pin (31) are provided on the side of the connection position of the new energy vehicle to-be-connected component (4).

7. A nut for new energy vehicles according to claim 1, characterized in that: The arc-shaped outer surface of the pull riveting extrusion driving section (8) is provided with a plurality of strip-shaped installation grooves (33) matching the limit assembly (12), and the interior of the strip-shaped installation grooves (33) is provided with spring installation grooves (34) matching the push spring (16).

8. A nut for new energy vehicles according to claim 7, characterized in that: The limiting connection column (13) is welded to one end inside the strip-shaped installation groove (33), the sleeve (14) is sleeved on the limiting connection column (13) and slidably connected thereto, and the side edge of the sleeve (14) fits with one end inside the strip-shaped installation groove (33).

9. A nut for new energy vehicles according to claim 1, characterized in that: A limiting tooth (35) is fixedly provided at one end of the limiting arm (15) away from the sleeve (14), and a limiting tooth groove (36) matching the limiting tooth (35) is provided inside the limiting groove (23).

10. A nut for new energy vehicles according to claim 1, characterized in that: One end of the limiting sleeve (17) is provided with an annular sealing ring installation groove three (37) matching with the O-ring three (19), and one end of the limiting top ring (18) is provided with an annular sealing ring installation groove four (38) matching with the O-ring four (20).

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