CN210949403U

CN210949403U - Folding type locking bolt

Info

Publication number: CN210949403U
Application number: CN201921676268.1U
Authority: CN
Inventors: 常占峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-07-07
Anticipated expiration: 2029-10-09

Abstract

The utility model particularly relates to a folding type locking bolt, which comprises a bolt body, wherein the bolt body comprises a nut and a screw rod, the screw rod is connected with the nut, the outer side of the screw rod is provided with threads, the end part of the screw rod is provided with a groove, the outer side surface of the screw rod is provided with a nut in a matching way, one end surface of the nut is provided with symmetrical folding grooves close to the inner thread hole, and the screw rod passes through two workpiece plates and is locked by the nut; the utility model discloses simple structure, reasonable in design sets up the rotation that the groove of rolling over can avoid the nut through riveting screw rod and nut, can prevent that the work piece after screwing up leads to not hard up of nut because of using for a long time or receiving the exogenic action, and then guarantees the fastness after the bolt locking, reduces the potential safety hazard because of the bolt is not hard up and brings.

Description

Folding type locking bolt

Technical Field

The utility model belongs to a fastener, in particular to roll over a mouthful formula locking bolt.

Background

In the machinery field, no matter big machinery or little mechanism, can not avoid the fastening between the spare part, and the bolt is one kind comparatively commonly used in the fastener, also is one of the comparatively extensive fastener of range of application, however when machinery moves, along with the increase of live time, and the effect of external force such as vibrations, bolt fastener can take place to become flexible because of the frictional force between nut and the bolt is less, leads to the fastening effect not good, uses for a long time and can cause very big potential safety hazard. Therefore, the anti-loosening of the fastener is a technical problem which is always solved by researchers in the mechanical field.

In order to solve the problem that the above-mentioned bolt easily takes off, the utility model provides a roll over a mouthful formula locking bolt.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a folding type locking bolt.

The purpose of the utility model is realized like this: the utility model provides a roll over a mouthful formula lock bolt, includes the bolt body, the bolt body include nut, screw rod, the screw rod is connected with the nut, the screw rod outside is provided with the screw thread, the screw rod tip is seted up flutedly, the supporting nut that is provided with of screw rod lateral surface, a terminal surface of nut is close to internal thread hole department and sets up the groove of rolling over a mouthful of symmetry, the screw rod passes two work piece boards and passes through nut locking.

The upper part of the groove is cylindrical, and the lower part of the groove is semicircular.

The cross section of the folding groove is trapezoidal.

The utility model discloses when using, put into the through-hole of work piece board one and work piece board two with the bolt body, screw on the screw rod through the nut, realize the locking to work piece board one and work piece board two, the length of screw rod can be customized as required, guarantee that the nut is located same horizontal plane best at the terminal surface of the back nut of screwing and the terminal surface of screw rod, the terminal surface of nut is 0.2mm with the terminal surface maximum error of screw rod after screwing, the break groove of seting up on the screw rod body that the adoption instrument was equipped with recess one end with the screw rod after the nut was screwed rivets into the screw rod body of screw rod, this break formula locking bolt is disposable bolt, the nut can't rotate on the screw rod after riveting into the screw rod body of screw rod tip, and then realize dying to the lock of nut, reach and can't loose the mesh to the work piece locking.

Drawings

Fig. 1 is a schematic structural diagram of the utility model.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a perspective view of the bolt body of the utility model.

Fig. 4 is a schematic structural view of the nut of the utility model.

Fig. 5 is a schematic structural view of the bolt body of the utility model.

Detailed Description

Embodiment 1, as shown in fig. 1 to 5, a folded-mouth type lock bolt includes a bolt body, the bolt body includes a nut 1 and a screw rod 2, the screw rod 2 is connected with the nut 1, threads are arranged on the outer side of the screw rod 2, a groove 3 is formed at the end of the screw rod 2, the upper part of the groove 3 is cylindrical, and the lower part is semicircular; the outer side surface of the screw rod 2 is provided with a nut 5 in a matching way, one end surface of the nut 5 is provided with symmetrical folding grooves 4 close to the internal thread hole, and the cross section of each folding groove 4 is trapezoidal. The screw rod 2 penetrates through the two workpiece plates and is locked by the nut 5.

When in use, the bolt body is placed into the through holes of the first workpiece plate 7 and the second workpiece plate 8, the first workpiece plate 7 and the second workpiece plate 8 are locked by screwing the nut 5 on the screw rod 2, the length of the screw rod 2 can be customized according to requirements, the end surface of the nut 5 and the end surface of the screw rod 2 are preferably positioned on the same horizontal plane after the nut 5 is screwed, the maximum error between the end surface of the nut 5 and the end surface of the screw rod 2 after the nut 5 is screwed is 0.2mm, after the nut 5 is screwed, a tool is adopted to rivet the screw rod body at one end of the screw rod 2 provided with the groove 3 into the corresponding folding groove 4 arranged on the nut 5, as shown in figure 2, this dog-ear formula locking bolt is disposable bolt, and the nut can't rotate on screw rod 2 after riveting into dog-ear groove 4 with the screw rod body of 2 tip of screw rod, and then realizes dying the lock of nut 5, reaches and can't loosen and take off the purpose to the work piece locking.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a dog-ear formula locking bolt, includes the bolt body, its characterized in that: the bolt body include nut (1), screw rod (2) are connected with nut (1), the screw rod (2) outside is provided with the screw thread, screw rod (2) tip is seted up flutedly (3), the supporting nut (5) that is provided with of screw rod (2) lateral surface, the one end face of nut (5) is close to interior screw hole department and sets up the turn-buckle groove (4) of symmetry, screw rod (2) pass two work piece boards and pass through nut (5) locking.

2. A rebate-type locking bolt according to claim 1, wherein: the upper part of the groove (3) is cylindrical, and the lower part of the groove is semicircular.

3. A rebate-type locking bolt according to claim 1, wherein: the section of the folding groove (4) is trapezoidal.