CN211573980U

CN211573980U - Embedded bolt

Info

Publication number: CN211573980U
Application number: CN202020128609.8U
Authority: CN
Inventors: 黄青
Original assignee: Shanghai Zhongxin Hardware Manufacture Co ltd
Current assignee: Shanghai Zhongxin Hardware Manufacture Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-09-25
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a bolt that can inlay, it includes the bolt head and the screw rod of being connected with the bolt head, including screw thread section and smooth section on the screw rod, the bolt head has served at its one of being connected with the screw rod and has offered the joint groove, the smooth section of screw rod can inlay in the joint inslot, the external screw thread has been seted up on the surface of bolt head. The utility model discloses have the effect that can imbed in the bolt assembly hole.

Description

Embedded bolt

Technical Field

The utility model belongs to the technical field of the fastener and specifically relates to a bolt that can inlay formula is related to.

Background

A cylindrical threaded fastener matched with a nut is a fastener consisting of a head part and a screw (a cylinder with external threads), and needs to be matched with the nut for fastening and connecting two parts with through holes.

The prior art can refer to the utility model patent of grant publication No. CN202220784U, and this utility model relates to a bolt, including the body, the body includes bolt head and screw rod, is equipped with the gasket between bolt head and screw rod, and the screw rod includes polished rod section and screw thread section.

The above prior art solutions have the following drawbacks: when the parts are connected, the bolt head of the bolt is often placed on the surfaces of the parts after the parts are connected, so that the surface smoothness of the parts is reduced, and the problem of inconvenient use is caused on occasions where the surface space of the parts is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a bolt of embeddable formula, it has the effect that can imbed in the bolt mounting hole.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a bolt that can inlay, includes the bolt head and the screw rod of being connected with the bolt head, including screw thread section and smooth section on the screw rod, the joint groove has been seted up to the bolt head in its one end of being connected with the screw rod, the smooth section of screw rod can inlay in the joint inslot, the external screw thread has been seted up on the surface of bolt head.

Through adopting above-mentioned technical scheme, when using this bolt to carry out the connection of spare part, screw rod and bolt head can inlay in the pilot hole on the spare part to external screw thread on the bolt head enables bolt head and pilot hole threaded connection in order to fix, thereby realizes the effect in the bolt embedding pilot hole.

The present invention may be further configured in a preferred embodiment as: the bolt head is provided with an inner hexagonal groove on the end face deviating from the clamping groove.

Through adopting above-mentioned technical scheme, when the bolt head inlays in the pilot hole, the overhead interior hexagonal groove that sets up of bolt to in screwing of bolt moves, thereby promote the convenience of bolt assembly.

The present invention may be further configured in a preferred embodiment as: the bottom of the inner hexagonal groove is an inverted conical surface.

Through adopting above-mentioned technical scheme, when using hexagon socket head cap spanner to twist the bolt and move, be equipped with the back taper in the hexagon socket head cap groove to hexagon socket head cap spanner and hexagon socket head cap groove fully contact, thereby the effect that makes the bolt twist and move is better.

The present invention may be further configured in a preferred embodiment as: a chamfer I is formed in the notch of the inner hexagonal groove.

Through adopting above-mentioned technical scheme, when using hexagon socket head cap spanner to twist the bolt and move, chamfer I enables hexagon socket head cap spanner and inserts hexagon socket head cap groove more swiftly accurately to promote the efficiency of twisting.

The present invention may be further configured in a preferred embodiment as: two elongated slots which are perpendicular to each other and communicated with the inner hexagonal slot are formed in the bolt head.

By adopting the technical scheme, the bolt head is provided with the long groove, so that the bolt can be screwed by using the screwdriver under the condition of no inner hexagonal wrench, and the screwing diversification of the bolt is realized.

The present invention may be further configured in a preferred embodiment as: and a chamfer II is formed at the notch of the long groove.

Through adopting above-mentioned technical scheme, when using the screwdriver to twist the bolt, chamfer II enables the screwdriver and inserts in the elongated slot more swiftly accurately to promote the efficiency of twisting.

The present invention may be further configured in a preferred embodiment as: and a reinforcing sleeve capable of being sleeved outside the smooth section is arranged at the notch of the clamping groove.

Through adopting above-mentioned technical scheme, notch department in joint groove sets up the reinforcement sleeve, and the reinforcement sleeve cover is in the smooth section outside to strengthen being connected of screw rod and bolt head, thereby improve the intensity of bolt.

The present invention may be further configured in a preferred embodiment as: and an expansion sleeve capable of being in threaded connection with the threaded section is arranged on the screw rod.

Through adopting above-mentioned technical scheme, place the inflation cover in the pilot hole, when twisting the screw rod and make screw thread section and inflation cover threaded connection, the screw rod can strut the inflation cover and make inflation cover and pilot hole contact inseparabler to strengthen the firm degree of bolt.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the bolt is used for connecting parts, the screw rod and the bolt head can be embedded in the assembly hole in the part, and the external thread on the bolt head can enable the bolt head to be in threaded connection with the assembly hole so as to be fixed, so that the effect of embedding the bolt into the assembly hole is realized.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of the bolt head and the screw rod according to the embodiment.

In the figure, 1, bolt head; 11. an inner hexagonal groove; 111. chamfering I; 12. a long groove; 121. chamfering II; 13. an external thread; 14. an inverted conical surface; 15. a clamping groove; 151. reinforcing the sleeve; 2. a screw; 21. a threaded segment; 22. a smoothing section; 3. an expansion sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a bolt that can inlay formula, including bolt head 1 and with bolt head 1 fixed connection's screw rod 2, external screw thread 13 has been seted up to bolt head 1's surface, and when bolt head 1 inlayed in the assembly hole, external screw thread 13 can and assembly hole threaded connection to make bolt head 1 can fix in the assembly hole.

An inner hexagonal groove 11 is formed in the upper end face of the bolt head 1, and when the bolt head 1 is embedded in the assembling hole, the bolt head can be inserted into the inner hexagonal groove 11 through an inner hexagonal wrench, so that the bolt can be screwed.

The back taper 14 that the orientation extended that deviates from 11 notches in hexagon socket head cap groove is seted up to the tank bottom of hexagon socket head cap groove 11, and when hexagon socket head cap spanner was inserted in hexagon socket head cap groove 11, hexagon socket head cap spanner can fully contradict with hexagon socket head cap groove 11 under the effect of back taper 14 to promote twisting of bolt and move the effect.

The chamfer I111 that extends along the notch edge is seted up to the notch department of interior hexagonal groove 11, and when interior hexagonal spanner was inserted in interior hexagonal groove 11, the sharp limit of 11 notches in interior hexagonal groove can be got rid of to chamfer I111 to make interior hexagonal spanner can insert in interior hexagonal groove 11 more convenient accurately, promote the efficiency of bolt assembly.

Two elongated slots 12 which are perpendicular to each other and are communicated with the inner hexagonal slot 11 are formed in the upper end face of the bolt head 1, the intersection points of the two elongated slots 12 which are perpendicular to each other are overlapped with the central point of the inner hexagonal slot 11, and two ends of each elongated slot 12 extend to the outer edge of the bolt head 1, so that the bolt can be screwed by a screwdriver under the condition that an inner hexagonal wrench is not used.

The chamfer II 121 extending along the elongated slot 12 is formed in the notch of the elongated slot 12, and when the screwdriver is inserted into the elongated slot 12, the sharp edge of the elongated slot 12 can be removed by the chamfer II 121, so that the screwdriver can be inserted into the elongated slot 12 more conveniently and accurately, and the assembling diversity of bolts is improved.

The screw 2 includes a screw section 21 and a smooth section 22, the smooth section 22 is disposed at an end of the screw 2 connected to the bolt head 1, the screw section 21 is disposed at an end of the screw 2 facing away from the end connected to the bolt head 1, and the length of the screw section 21 is longer than that of the smooth section 22.

The bolt head 1 is provided with the joint groove 15 on its one end of being connected with screw rod 2, and joint groove 15 is that the column of the lower terminal surface of bolt head 1 is extended along the same direction to the inner circle of joint groove 15 and the outer lane looks adaptation of screw rod 2, and the one end of the smooth section 22 of screw rod 2 can inlay in joint groove 15 and fixed.

The fixedly connected with of notch department of joint groove 15 consolidates sleeve 151, consolidates sleeve 151 and is the column of joint groove 15 and extends in the same direction as to consolidate sleeve 151 and to live the whole parcel of level and smooth section 22, thereby promote the fastness that screw rod 2 and bolt head 1 are connected.

The cover is equipped with inflation cover 3 on the screw rod 2, is provided with in the inflation cover 3 and carries out threaded connection's internal thread with screw thread section 21, and when screw thread section 21 threaded connection was in inflation cover 3, screw rod 2 can strut inflation cover 3, just makes inflation cover 3 inseparabler with the pilot hole contact to strengthen the firm degree of bolt.

The implementation principle of the embodiment is as follows: when assembling the bolt, place inflation cover 3 in the bolt assembly hole earlier, then insert screw rod 2 in the assembly hole and with 3 threaded connection of inflation cover, bolt head 1 can inlay in the assembly hole when strutting inflation cover 3, later under the effect of the external screw thread 13 on bolt head 1, make bolt head 1 and assembly hole carry out threaded connection to it is fixed with the assembly hole with bolt head 1, alright realize the bolt and inlay the effect in the assembly hole.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An embeddable bolt comprising a bolt head (1) and a shank (2) connected to the bolt head (1), the shank (2) including a threaded section (21) and a smooth section (22), characterized in that: the bolt head (1) is provided with a clamping groove (15) at one end connected with the screw rod (2), the smooth section (22) of the screw rod (2) can be embedded in the clamping groove (15), and the surface of the bolt head (1) is provided with an external thread (13).

2. An embeddable bolt as defined in claim 1, wherein: the bolt head (1) is provided with an inner hexagonal groove (11) on the end face deviating from the clamping groove (15).

3. An embeddable bolt as defined in claim 2, wherein: the bottom of the inner hexagonal groove (11) is provided with an inverted conical surface (14).

4. An embeddable bolt as defined in claim 2, wherein: a chamfer I (111) is formed in the notch of the inner hexagonal groove (11).

5. An embeddable bolt as defined in claim 2, wherein: the bolt head (1) is provided with two elongated slots (12) which are perpendicular to each other and communicated with the inner hexagonal slot (11).

6. An embeddable bolt as defined in claim 5, wherein: and a chamfer II (121) is formed at the notch of the long groove (12).

7. An embeddable bolt as defined in claim 1, wherein: the notch of the clamping groove (15) is provided with a reinforcing sleeve (151) which can be sleeved outside the smooth section (22).

8. An embeddable bolt as defined in claim 1, wherein: and an expansion sleeve (3) which can be in threaded connection with the threaded section (21) is arranged on the screw rod (2).