CN217152585U

CN217152585U - Rivet nut

Info

Publication number: CN217152585U
Application number: CN202220592553.0U
Authority: CN
Inventors: 林胜金; 吕顺辉; 汤东升; 邵瀛
Original assignee: Jiangsu Lingpai Communication Technology Co ltd
Current assignee: Jiangsu Lingpai Communication Technology Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-08-09
Anticipated expiration: 2032-03-17

Abstract

The utility model belongs to the technical field of the fastener technique and specifically relates to a rivet nut. The utility model discloses a rivet nut comprises spacing head and fixed column, the fixed column includes deformation portion and locking portion, deformation portion includes deformation district and lower deformation district, a plurality of mounting holes have been seted up to the inner tank face of first recess, the middle part of lower deformation district has been seted up the second recess, the inside of second recess is equipped with the clamp block, the clamp block is connected with the mounting hole joint when deformation district receives upward pulling force deformation under the lower deformation, the clamp block passes the mounting hole and supports tightly with the surface of the structure of fastening, can effectively prevent rivet nut not hard up and rotate; the joint of the upper deformation area and the lower deformation area is provided with the force release groove, and the force release groove releases partial extrusion force when the lower deformation area is deformed by upward tensile force, so that the deformation part can be effectively prevented from being broken in the deformation process, and the applicability is improved; the clamping block is located in the object placing groove, the size of the clamping block is adjusted through the object placing groove, the clamping block is suitable for structural members with different thicknesses, and the applicability is further improved.

Description

Rivet nut

Technical Field

The utility model belongs to the technical field of the fastener technique and specifically relates to a rivet nut.

Background

The rivet nut is widely used for assembling electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, decoration and the like. The novel riveting tool is developed for overcoming the defects that a welding nut of a metal sheet and a thin pipe is easy to melt, an internal thread is easy to slip, and the like, does not need to tap the internal thread, does not need to weld the nut, is firm in riveting, and is high in efficiency and convenient to use.

In the application process of the rivet nut, the rivet nut is mostly extruded and deformed through the deformation part to form a tightening disc with the outer diameter larger than the bottom hole of the fastened structural member, so that the rivet nut is fixed on the fastened structural member by utilizing the common clamping of the limiting head and the tightening disc.

The tight dish of supporting that this structure formed is smooth plane with the tight face of supporting of structure, therefore often appears in the in-service use that the rivet nut is not hard up, the condition that the nut was with changeing appears during fastening bolt, the fastening of inconvenient bolt, simultaneously at the rivet in-process, deformation portion bears very big extrusion force in the twinkling of an eye for crack or fracture very easily appears in deformation portion, and the fastening effect that leads to the rivet nut is poor, probably needs repeated rivet, and the suitability is not high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problem existing in the background technology, the rivet nut is provided, and the rivet nut is solved and is in the in-process of using, and the deformation portion extrusion deformation is mostly passed through, and the tight dish that supports that the external diameter is greater than the structure bottom hole that fastens is formed to utilize the common centre gripping of spacing head and the tight dish that supports to fix the rivet nut on the structure that fastens. The tight dish of supporting that this structure formed is smooth plane with the tight face of supporting of structure, therefore often appears in the in-service use that the rivet nut is not hard up, the condition that the nut was with changeing appears during fastening bolt, the fastening of inconvenient bolt, simultaneously at the rivet in-process, deformation portion bears very big extrusion force in the twinkling of an eye for crack or fracture very easily appears in deformation portion, and the fastening effect that leads to the rivet nut is poor, probably needs repeated rivet, the not high problem of suitability.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a rivet nut, includes spacing head and the fixed column with spacing first body coupling, the fixed column includes deformation portion and locking part, deformation portion include deformation region and lower deformation region, the first recess that extends to the deformation region bottom surface is seted up at the middle part of spacing head, a plurality of mounting holes have been seted up to the inner tank face that first recess is located deformation region, the second recess has been seted up at the middle part in lower deformation region, the inside and the same perpendicular axis of mounting hole of second recess are provided with and press from both sides tight piece, press from both sides tight piece and be connected with the mounting hole joint that corresponds the position when deformation region receives upwards pulling force deformation under.

The middle part of locking portion sets up the locking through-hole that runs through first recess and second recess, be provided with the internal thread on the inner wall of locking through-hole.

And a force releasing groove is formed at the joint of the upper deformation area and the lower deformation area, and the cross section of the force releasing groove is conical or inner arc-shaped.

The mounting holes are distributed on the annular surface of the first groove in an annular array mode, the cross section of each mounting hole is rectangular, the length of each rectangle is larger than that of each clamping block, and the width of each rectangle is matched with that of each clamping block.

And a gap is reserved between the upper opening edge of the mounting hole and the upper surface of the upper deformation area.

The inner diameter of the first groove is smaller than that of the second groove, the inner diameter of the locking through hole is smaller than that of the first groove, and the distance between the clamping block and the opposite clamping block is smaller than that of the locking through hole.

The inner groove surface of the second groove is coaxially provided with an object placing groove with the mounting hole, and the clamping block is positioned inside the object placing groove.

The length of the inner groove surface of the object placing groove is greater than that of the clamping block, and the width of the inner groove surface of the object placing groove is matched with that of the clamping block.

The utility model has the advantages that:

(1) the utility model discloses a rivet nut comprises spacing head and the fixed column of being connected with spacing head is integrative, the fixed column includes deformation portion and locking part, deformation portion includes deformation zone and lower deformation zone, the middle part of spacing head is seted up and is extended to the first recess of upper deformation zone bottom surface, the inner groove face that first recess is located upper deformation zone has seted up a plurality of mounting holes, the middle part of lower deformation zone has seted up the second recess, the inside of second recess and the same vertical axis of mounting hole are provided with the clamp block, the clamp block is connected with the mounting hole joint of corresponding position when lower deformation zone receives upward tensile force deformation, the clamp block passes the mounting hole and supports tightly with the surface of the structure of fastening, can effectively prevent nut after the rivet from becoming flexible and rotating;

(2) the joint of the upper deformation area and the lower deformation area is provided with a force releasing groove, the cross section of the force releasing groove is conical or in an inner arc shape, and the force releasing groove releases partial extrusion force when the lower deformation area is deformed by upward tensile force, so that the deformation part can be effectively prevented from being broken in the deformation process, and the applicability of the rivet nut is improved;

(3) the inner groove face of the second groove is coaxially provided with the object containing groove, the clamping block is located inside the object containing groove, the size of the clamping block can be adjusted through the object containing groove, the clamping block is suitable for different thicknesses to be fastened on a structural member, and the applicability is further improved.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 1 of the present invention.

In the figure, the clamping device comprises a limiting head 1, a fixing column 2, a deformation part 3, a locking part 4, an upper deformation area 5, a lower deformation area 6, a first groove 7, a mounting hole 8, a second groove 9, a clamping block 10, a locking through hole 11, a force releasing groove 12 and a storage groove 13.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1, a nut is riveted to drawing shown in fig. 2 and 3, including spacing head 1 and with spacing 1 a body coupling's fixed column 2, fixed column 2 includes deformation portion 3 and locking part 4, deformation portion 3 includes deformation zone 5 and lower deformation zone 6, first recess 7 that extends to 5 bottom surfaces of deformation zone is seted up at spacing head 1's middle part, a plurality of mounting holes 8 have been seted up to the inner tank face that first recess 7 is located deformation zone 5, second recess 9 has been seted up at the middle part of lower deformation zone 6, the inner wall of second recess 9 is provided with tight piece 10 of clamp with the same perpendicular axis of mounting hole 8, tight piece 10 of clamp is connected with the 8 joints of mounting hole that correspond the position when deformation zone 6 receives upward pulling force deformation down.

In embodiment 1, as shown in fig. 2 and 3, the lower deformation region 6 is subjected to an upward pulling force, the upper deformation region 5 is simultaneously extruded through the force releasing groove 12, the clamping block 10 on the inner side of the lower deformation region 6 moves upward until being clamped into the mounting hole 8 at the corresponding position of the upper deformation region 5, and is subjected to left and right extrusion forces, the upper end of the clamping block 10 penetrates through the mounting hole 8 and then protrudes to the outer annular surface of the upper deformation region 5, the lower deformation region 6 is completely abutted against the inner surface of the upper deformation region 5 to form an abutting disc, at this time, the upper surface of the clamping block 10 is tightly attached to the abutting surface of a fastened structural member, and a tooth-shaped locking surface with a height drop is formed between the clamping block 10 and the outer surface of the upper deformation region 5, so that the blind rivet nut and the fastened structural member are completely locked and prevented from loosening.

In order to further promote the locking effect, as shown in fig. 2, an anti-slip layer can be further arranged on the upper surface of the clamping block 10, the anti-slip layer can be made of metal, the anti-slip layer can also be made of rubber with large friction force, silica gel and other elastic materials, when the metal is used as the anti-slip layer, an agnail structure can be adopted, the agnail punctures the abutting surface of the fastened structural member in the rivet pulling process, a good locking effect can be achieved, when the anti-slip layer is made of the elastic material, the anti-slip layer not only can lock the nut through the friction force between the abutting surfaces of the fastened structural member, meanwhile, the clamping block 10 made of the elastic material also has a certain buffering effect on the extrusion force generated in the rivet pulling process, and cracks or breakage of the deformation part of the rivet nut can be effectively avoided.

Further, in order to facilitate the use of the rivet nut, a locking through hole 11 penetrating through the first groove 7 and the second groove 9 is formed in the middle of the locking portion 4, and an internal thread is formed in the inner wall of the locking through hole 11.

Further, in order to effectively prevent the deformation part 3 from being broken in the deformation process and improve the applicability of the rivet nut, a force releasing groove 12 is formed in the joint of the upper deformation area 5 and the lower deformation area 6, the cross section of the force releasing groove 12 is conical or inner arc-shaped, and the extrusion force in the rivet process can be effectively and slowly released through the conical or inner arc-shaped force releasing groove 12.

Further, in order to facilitate the clamping block 10 to be clamped into the mounting hole 8 in the rivet pulling process, the mounting holes 8 are distributed on the annular surface of the first groove 7 in an annular array mode, the cross section of each mounting hole 8 is rectangular, the length of each rectangle is larger than that of the clamping block 10, and the width of each rectangle is matched with that of the clamping block 10.

Further, in order to enable the rivet nut with the structure to be suitable for fastened structural parts with different thicknesses, a gap is reserved between the upper opening edge of the mounting hole 8 and the upper surface of the upper deformation area 5, and the rivet nuts with different gaps are selected according to the thickness of the used packing materials.

Further, in order to avoid that the pulling rivet tool accidentally damages the abutting surface of the clamping block 10 and affects the locking effect in the pulling rivet process, the inner diameter of the first groove 7 is smaller than that of the second groove 9, the inner diameter of the locking through hole 11 is smaller than that of the first groove 7, and the distance between the clamping block 10 and the opposite clamping block 10 is smaller than that of the locking through hole 11.

Further, in order to ensure that the rivet nut is suitable for the fastened structural part with different thicknesses, the applicability is further improved, the inner groove surface of the second groove 9 is coaxially provided with the mounting hole 8 to form an object placing groove 13, the clamping block 10 is located inside the object placing groove 13, the length of the inner groove surface of the object placing groove 13 is larger than that of the clamping block 10, and the width of the inner groove surface of the object placing groove 13 is matched with that of the clamping block 10.

Embodiment 2, as shown in fig. 2, when locking the thick tight structure of fastening, can change the tight piece 10 of pressing from both sides that thickness is less, when locking the thin tight structure of fastening, can change the tight piece 10 of pressing from both sides that thickness is great, for convenient change and adjust from top to bottom press from both sides tight piece 10, can set up the slip rib on putting the interior bottom surface of thing groove 13, then set up the slip recess with slip rib assorted at the bottom surface of pressing from both sides tight piece 10 and assemble, also can set up the slip recess on putting the interior bottom surface of thing groove 13, set up the slip rib with slip recess assorted at the bottom surface of pressing from both sides tight piece 10.

The utility model discloses a rivet nut comprises spacing head 1 and the fixed column 2 of being connected with spacing head 1 an organic whole, fixed column 2 includes deformation portion 3 and locking part 4, deformation portion 3 includes deformation zone 5 and lower deformation zone 6, the middle part of spacing head 1 is seted up and is extended to the first recess 7 of 5 bottom surfaces of upper deformation zone, the inner trough surface that first recess 7 is located upper deformation zone 5 has seted up a plurality of mounting holes 8, the middle part of lower deformation zone 6 has seted up second recess 9, the inside of second recess 9 is provided with clamping block 10 with the same vertical axis of mounting hole 8, clamping block 10 is connected with the mounting hole 8 joint of corresponding position when lower deformation zone 6 receives upward pulling force deformation, clamping block 10 passes mounting hole 8 and supports tightly with the surface of the structure of fastening, can effectively prevent nut loose and rotation after the rivet; a force releasing groove 12 is formed at the joint of the upper deformation area 5 and the lower deformation area 6, the cross section of the force releasing groove 12 is conical or in an inner arc shape, and the force releasing groove 12 releases partial extrusion force when the lower deformation area 6 is deformed by upward tensile force, so that the deformation part 3 can be effectively prevented from being broken in the deformation process, and the applicability of the rivet nut is improved; the inner groove surface of the second groove 9 is coaxially provided with the mounting hole 8 to form an object placing groove 13, the clamping block 10 is located inside the object placing groove 13, the size of the clamping block can be adjusted through the object placing groove 13, the clamping block is suitable for fastening structural parts with different thicknesses, and the applicability is further improved.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a rivet nut, includes spacing head (1) and fixed column (2) with spacing head (1) body coupling, fixed column (2) are including deformation portion (3) and locking portion (4), characterized by: deformation portion (3) including deformation zone (5) and lower deformation zone (6), first recess (7) that extend to deformation zone (5) bottom surface are seted up at the middle part of stopper head (1), a plurality of mounting holes (8) have been seted up to the interior cell surface that first recess (7) are located deformation zone (5), second recess (9) have been seted up at the middle part of lower deformation zone (6), the inner wall of second recess (9) is provided with tight piece (10) of clamp with the same perpendicular axis of mounting hole (8), tight piece (10) of clamp receive under deformation zone (6) make progress when tensile deformation and be connected with mounting hole (8) joint that corresponds the position.

2. A blind rivet nut as defined in claim 1, further comprising: the middle part of the locking part (4) is provided with a locking through hole (11) which penetrates through the first groove (7) and the second groove (9), and the inner wall of the locking through hole (11) is provided with an internal thread.

3. A blind rivet nut as defined in claim 1, further comprising: a force releasing groove (12) is formed in the joint of the upper deformation area (5) and the lower deformation area (6), and the cross section of the force releasing groove (12) is conical or inner arc-shaped.

4. A blind rivet nut as defined in claim 1, further comprising: the mounting holes (8) are distributed on the annular surface of the first groove (7) in an annular array mode, the cross section of each mounting hole (8) is rectangular, the length of each rectangle is larger than that of each clamping block (10), and the width of each rectangle is matched with that of each clamping block (10).

5. The blind rivet nut of claim 4, wherein: and a gap is reserved between the upper opening edge of the mounting hole (8) and the upper surface of the upper deformation area (5).

6. A blind rivet nut as defined in claim 2, further comprising: the inner diameter of the first groove (7) is smaller than that of the second groove (9), the inner diameter of the locking through hole (11) is smaller than that of the first groove (7), and the distance between the clamping block (10) and the opposite clamping block (10) is smaller than that of the locking through hole (11).

7. A blind rivet nut as defined in claim 1, further comprising: an object placing groove (13) is formed in the inner groove surface of the second groove (9) and is coaxial with the mounting hole (8), and the clamping block (10) is located inside the object placing groove (13).

8. A blind rivet nut as defined in claim 7, further comprising: the length of the inner groove surface of the article placing groove (13) is greater than that of the clamping block (10), and the width of the inner groove surface of the article placing groove (13) is matched with that of the clamping block (10).