CN212272768U

CN212272768U - Nut limiting device

Info

Publication number: CN212272768U
Application number: CN202020917373.6U
Authority: CN
Inventors: 李海强
Original assignee: Qingdao Tiseno Automation Co ltd
Current assignee: Qingdao Tiseno Automation Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-01-01
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a nut stop device in the supplementary field of mechanical engineering fastener, including bolt and threaded connection in the nut of bolt, its characterized in that: the end tail of bolt has seted up the device groove along axial direction, the intercommunication has been seted up to the outer wall of bolt the opening in device groove, the draw-in groove has been seted up along axial direction to the inner wall of nut, the device inslot is equipped with joint spare, joint spare includes screw thread pin and threaded connection in the fixture block of screw thread pin, the one end of screw thread pin is in outside the device groove notch, the fixture block stretches out from the opening. The utility model discloses an at the inside joint spare that sets up of bolt, after nut threaded connection just fixes required fixed connection's part in the bolt, rotate with the restriction nut in the draw-in groove of nut inner wall through joint spare joint, make the stable location of nut on the bolt to make fixed connection's part remain stable.

Description

Nut limiting device

Technical Field

The utility model relates to a mechanical engineering fastener auxiliary field specifically is a nut stop device.

Background

In mechanical engineering design, bolt fastening is a very common connection method, such as a fixed connection structure on a steel frame on a building site and a fixed connection structure on a keel of a roof, and in the connection method, strength, looseness prevention and assembly convenience are the most critical consideration factors.

Most of the existing bolt connections are fixed and connected with bolts only through nut threads, and in the long-term use process, the positioning of nuts is possible to loosen, so that the connection parts are loosened. Therefore, a nut limiting device is provided by those skilled in the art to solve the problem that after the nut proposed in the above background art is screwed on the bolt, the positioning of the nut may be loosened, so that the connecting part is loosened.

Disclosure of Invention

An object of the utility model is to provide a nut stop device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a nut stop device, includes bolt and threaded connection in the nut of bolt, its characterized in that: the end tail of bolt has seted up the device groove along axial direction, the intercommunication has been seted up to the outer wall of bolt the opening in device groove, the draw-in groove has been seted up along axial direction to the inner wall of nut, the device inslot is equipped with joint spare, joint spare includes screw thread pin and threaded connection in the fixture block of screw thread pin, the one end of screw thread pin is in outside the device groove notch, the fixture block stretches out from the opening.

As a further aspect of the present invention: a space for the clamping piece to move towards the opening or away from the opening is reserved in the device groove.

As a further aspect of the present invention: the draw-in groove of nut inner wall is equipped with a plurality ofly and circumference equidistance and distributes.

As a further aspect of the present invention: the end tail surface of the bolt is provided with an embedded groove, one end of the threaded thin rod outside the device groove is provided with a thin rod end head, the thin rod end head can be partially embedded into the embedded groove, and when the thin rod end head is embedded into the embedded groove, the clamping block extends out of the opening.

As a further aspect of the present invention: the cross section of the embedded groove is polygonal, and the end of the thin rod of the threaded thin rod is a polygon matched with the embedded groove.

As a further aspect of the present invention: and the end head of the thin rod is provided with a fixing piece fixed at the bottom of the embedded groove.

As a further aspect of the present invention: the fixing piece is a hand-screwed screw.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up joint spare in the bolt is inside, after nut threaded connection just fixes required fixed connection's part in the bolt, rotate with the restriction nut in the draw-in groove of nut inner wall through joint spare joint, make the stable location of nut on the bolt to make fixed connection's part remain stable.

1. The utility model discloses in, through set up a plurality of draw-in grooves at the nut inner wall, behind nut threaded connection in the bolt, a plurality of draw-in grooves correspond the opening of bolt outer wall more easily to it is not hard up with the restriction nut to change in carry out the joint to the draw-in groove.

2. The utility model discloses in, through setting up the device groove and making its reservation have the space that is used for joint spare to move towards the opening or keep away from the opening and remove, at the in-process that uses, can remove joint spare orientation away from the open-ended direction earlier, make the fixture block be in the device inslot completely, do not influence the connection hole site that the bolt passed required fixed connection's part, the screw thread outer wall that also can be normal for the nut simultaneously is not blocked, operate joint spare joint in the draw-in groove of nut after the nut precession bolt is fixed again, thereby prevent that the nut is not hard up.

3. The utility model discloses in, through the fixture block that sets up threaded connection and screw thread pin, adjustable position on the screw thread pin when the nut is fixed in the different positions on the outer wall of bolt, all can carry on spacingly to the nut.

Drawings

Fig. 1 is a schematic view of the overall structure of the nut limiting device of the present invention;

fig. 2 is a schematic view of a split structure of the nut limiting device of the present invention;

fig. 3 is a schematic structural view of the bolt of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the middle nut limiting device of the present invention.

In the figure: 1. a bolt; 11. a device slot; 12. an opening; 13. a groove is embedded; 2. a nut; 21. a card slot; 3. a clamping piece; 31. a threaded pin; 32. a clamping block; 311. the end of the thin rod; 3111. and screwing the screw by hand.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, in an embodiment of the present invention, a nut limiting device, includes bolt 1 and nut 2 screwed to bolt 1, device groove 11 has been seted up along axial direction to the end tail of bolt 1, the outer wall of bolt 1 has seted up the intercommunication opening 12 of device groove 11, draw-in groove 21 has been seted up along axial direction to the inner wall of nut 2, be equipped with joint spare 3 in the device groove 11, joint spare 3 includes threaded pin 31 and screwed connection in threaded pin 31's fixture block 32, threaded pin 31's one end is in outside the device groove 11 notch, fixture block 32 stretches out from opening 12.

In this embodiment, take the fixed connection through bolt 1 to explain between two steel sheets on the steelframe as an example, for stabilizing the fixed connection structure between two steel sheets, in the fixed connection process, bolt 1 passes the connection hole site of two steel sheets earlier, then screw nut 2 screw thread precession bolt 1, and fix two steel sheets, fine setting nut 2's position makes the draw-in groove 21 of its inner wall correspond with opening 12 on the outer wall of bolt 1 outer wall, then operation joint spare 3 is spacing from opening 12 to nut 2, order about fixture block 32 to stretch out the joint from opening 12 and get into draw-in groove 21, can fix nut 2 on bolt 1's outer wall like this, realized preventing that nut 2 is not hard up to ensure that the fixed connection's state is stable.

It should be noted that if the slot 21 on the inner wall of the nut 2 does not exactly correspond to the opening 12, the adjustment can be performed by adding a spacer.

Referring to fig. 4, in an embodiment, a space for the clip member 3 to move toward the opening 12 or away from the opening 12 is reserved in the device groove 11.

In this embodiment, the cross sectional shape of the device groove 11 is rectangular, and when the clamping member 3 is disposed in the device groove 11, in order not to affect the process that the bolt 1 needs to pass through the corresponding connection hole in advance when in use, and simultaneously, in order that the nut 2 can normally screw in the thread outer wall of the bolt 1 not to be clamped, a space for the clamping member 3 to move towards the direction away from the opening 12 is reserved in the device groove 11, after the clamping block 32 is completely located in the device groove 11, the bolt 1 can pass through the corresponding connection hole, then the nut 2 is screwed in the outer wall of the bolt 1 and fixed, and then the clamping member 3 is operated to be clamped in the clamping groove 21 of the nut 2.

In one embodiment, the clamping grooves 21 on the inner wall of the nut 2 are provided in a plurality and are circumferentially and equidistantly distributed. 4 clamping grooves 21 are arranged in the embodiment, and after the nut 2 is connected to the bolt 1 in a threaded manner, the 4 clamping grooves 21 are more easily corresponding to the opening 12 in the outer wall of the bolt 1, so that the clamping grooves 21 are more easily clamped; of course, the specific number of card slots 21 is not limited here, and may be 2 or 3 or more.

In one embodiment, the bolt 1 has an insertion groove 13 formed on the end surface thereof, the threaded rod 31 has a rod end 311 at an end thereof outside the installation groove 11, the rod end 311 can be partially inserted into the insertion groove 13, and the latch 32 protrudes from the opening 12 when the rod end 311 is inserted into the insertion groove 13.

In this embodiment, after nut 2 threaded connection in bolt 1 and fixed, the position of adjustment fixture block 32 on screw pin 31, and make pin end 311 inlay in embedded groove 13 back fixture block 32 can joint to nut 2's draw-in groove 21, keep joint spare 3 fixed this moment can make the joint that fixture block 32 can be stable in nut 2's draw-in groove 21 to carry out stable spacing to nut 2.

In one embodiment, the cross-sectional shape of the insertion groove 13 is a polygon, and the rod end 311 of the threaded rod 31 is a polygon adapted to the insertion groove 13. After the polygonal thin rod end 311 is inserted into the insertion groove 13, the thin rod end 311 can be prevented from rotating, so that the fixture block 32 is prevented from moving in the device groove 11, and the fixture block 32 is ensured to be stably clamped in the clamping groove 21.

In one embodiment, the thin rod end 311 is provided with a fixing member fixed on the bottom of the embedded groove 13. The thin rod end 311 is fixed in the embedded groove 13 through the fixing piece, so that the stability of the clamping piece 3 can be further ensured.

In one embodiment, the fixing member is a thumb screw 3111. The thin rod end 311 is fixed more conveniently and quickly by screwing the screw 3111 by hand.

The utility model discloses a theory of operation is: firstly, the clamping piece 3 is operated to enable the clamping block 32 to be far away from the opening 12 in the device groove 11, or the clamping piece 3 is directly taken out from the device groove 11 firstly, then the bolt 1 penetrates through a connecting hole of a part needing to be fixedly connected, then the nut 2 is screwed into the outer wall of the bolt 1 in a threaded mode and is screwed and fixed, it needs to be noted that the clamping groove 21 in the inner wall of the nut 2 needs to correspond to the opening 12, then the clamping piece 3 is operated to drive the clamping block 32 to be clamped in the clamping groove 21 from the opening 12, the thin rod end 311 is embedded into the embedded groove 13, then the thin rod end 311 is fixed through the hand-screwed screw 3111, the clamping piece 3 is ensured to be stable, and therefore the purpose that the nut 2 is prevented from loosening so that the fixed connection state.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a nut stop device, includes nut (2) of bolt (1) and threaded connection in bolt (1), its characterized in that: device groove (11) have been seted up along axial direction to the end tail of bolt (1), the intercommunication has been seted up to the outer wall of bolt (1) opening (12) of device groove (11), draw-in groove (21) have been seted up along axial direction to the inner wall of nut (2), be equipped with joint spare (3) in device groove (11), joint spare (3) are including threaded pin (31) and threaded connection in fixture block (32) of threaded pin (31), the one end of threaded pin (31) is in outside device groove (11) notch, fixture block (32) are followed opening (12) and are stretched out.

2. The nut limiting device of claim 1, wherein: a space for the clamping piece (3) to move towards the opening (12) or away from the opening (12) is reserved in the device groove (11).

3. The nut limiting device of claim 1, wherein: the clamping grooves (21) in the inner wall of the nut (2) are distributed in a plurality of circumferential equidistance.

4. The nut limiting device of claim 1, wherein: the end tail face of the bolt (1) is provided with an embedded groove (13), one end of the threaded thin rod (31) outside the device groove (11) is provided with a thin rod end (311), the thin rod end (311) can be partially embedded into the embedded groove (13), and when the thin rod end (311) is embedded into the embedded groove (13), the clamping block (32) stretches out of the opening (12).

5. The nut limiting device of claim 4, wherein: the cross section of the embedded groove (13) is polygonal, and the thin rod end (311) of the threaded thin rod (31) is polygonal and is matched with the embedded groove (13).

6. The nut limiting device of claim 4, wherein: the end (311) of the thin rod is provided with a fixing piece fixed at the bottom of the embedded groove (13).

7. The nut limiting device of claim 6, wherein: the mounting is hand screw (3111).