CN209892588U

CN209892588U - Double-bolt-head bolt

Info

Publication number: CN209892588U
Application number: CN201920572266.1U
Authority: CN
Inventors: 方良龙
Original assignee: Nanjing Lianglong Power Technology Co Ltd
Current assignee: Nanjing Lianglong Power Technology Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-03
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses a double-bolt head bolt, which comprises a bolt main body, a first bolt head, a second bolt head, an adjusting rod, a first clamping groove, a nut and an anti-dropping device, the utility model is characterized in that the first bolt head and the second bolt head are arranged, when the double-bolt head bolt needs to be fixedly connected in a narrow space and needs to use an outer hexagonal wrench, the first bolt head or the second bolt head can be selectively fixed according to the actual situation, the double-bolt head bolt is flexible and convenient, after an inner hexagonal hole is arranged in the bolt head, even if the outer hexagonal bolt head is deformed, the inner hexagonal hole can still be utilized to rapidly disassemble the bolt, the service life of the bolt is prolonged, the anti-dropping device is arranged in the screw, when the nut is fixed, an arc-shaped plate can be pressed down through the adjusting rod, then the adjusting rod is loosened, a strip-shaped clamping block is clamped in the first clamping groove and the second clamping groove, thereby realizing the fixation of the nut, preventing the nut from falling off and being beneficial to popularization and promotion.

Description

Double-bolt-head bolt

Technical Field

The utility model relates to a fastener technical field, in particular to two bolt head bolts.

Background

The bolt is a fastener consisting of a head part and a screw rod, needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection. The existing double-bolt head bolt comprises a rod body, a bolt head and a nut, and is fixed through the nut during use, but when the bolt is vibrated, the nut is easy to loosen on a screw rod, so that certain potential safety hazards exist, and when the bolt head deforms in the use process, the bolt cannot be disassembled, and unnecessary troubles are caused, so that the problems are solved by the double-bolt head bolt which is necessary to design.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a two bolt head bolts can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a double-bolt head bolt comprises a bolt main body, a first bolt head, a second bolt head, an adjusting rod, a first clamping groove, a nut and an anti-falling device, wherein the first bolt head is fixedly arranged at the end part of the bolt main body, the second bolt head is fixedly arranged on the first bolt head, an inner hexagonal hole is fixedly formed in the upper end face of the second bolt head, the adjusting groove is fixedly formed in one side of the inner hexagonal hole, the adjusting rod is arranged in the adjusting groove, a screw rod is fixedly arranged on the other side of the first bolt head, a thread section is fixedly arranged at the middle position of the screw rod, the first clamping groove is fixedly formed in the thread section along the axial direction of the bolt main body, one end of the adjusting rod is fixedly connected with the anti-falling device arranged inside the screw rod, the anti-falling device comprises an arc-shaped plate, a bar-shaped clamping block, a spring, a fixing plate and a rotating shaft, the fixing plate, the one end of fixed plate is articulated through pivot and arc, the even a plurality of spring that is provided with in interval between arc and the fixed plate, the fixed bar fixture block that is provided with in top of arc, the other end of bolt main part has the nut through threaded connection, the fixed screw hole that is provided with on the nut, the fixed second screens groove of having seted up on the screw hole.

Preferably, the first bolt head and the second bolt head are both hexagonal bolt heads, and the outer diameter of the second bolt head is smaller than that of the first bolt head.

Preferably, the strip-shaped clamping block is matched with the first clamping groove and the second clamping groove.

Preferably, the arc-shaped plate is provided with a waterproof coating, and the arc-shaped plate is attached to the inner wall of the screw rod.

Preferably, the adjusting groove is communicated with the inner cavity of the screw rod.

Preferably, the thread sections are provided with threads at uniform intervals.

Compared with the prior art, the utility model discloses following beneficial effect has: this practicality is through setting up first bolt head and second bolt head, when two bolt head bolts want fixed connection to use outer hexagonal spanner in narrow and small space, can be according to actual conditions, the selection is fixed first bolt head or second bolt head, it is nimble convenient, after interior hexagonal hole has been set up in the bolt head, even the hexagonal bolt head of outside warp, still can utilize interior hexagonal hole to carry out quick dismantlement bolt, the life of bolt has been increased, be provided with anti-disengaging device through the inside at the screw rod, when the nut is fixed, can press the arc through adjusting the pole, then loosen the regulation pole, bar fixture block card is in first screens groove and second screens groove, thereby realize the fixed to the nut, prevent that the nut from droing, be favorable to popularizing and promoting.

Drawings

Fig. 1 is a schematic view of an overall structure of a double-bolt-head bolt of the present invention;

fig. 2 is a schematic structural view of a double-bolt-head bolt anti-disengaging device of the present invention;

fig. 3 is a schematic structural view of a bolt and nut with two bolt heads according to the present invention;

in the figure: 1. a bolt body; 2. a first bolt head; 3. a second bolt head; 4. an inner hexagonal hole; 5. an adjustment groove; 6. adjusting a rod; 7. a screw; 8. a threaded segment; 9. a first clamping groove; 10. a nut; 11. an anti-drop device; 12. an arc-shaped plate; 13. a strip-shaped fixture block; 14. a spring; 15. a fixing plate; 16. a rotating shaft; 17. a threaded hole; 18. a second clamping groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a double-bolt head bolt includes a bolt body 1, a first bolt head 2, a second bolt head 3, an adjusting rod 6, a first clamping groove 9, a nut 10, and an anti-falling device 11, the end of the bolt body 1 is fixedly provided with the first bolt head 2, the first bolt head 2 is fixedly provided with the second bolt head 3, the upper end surface of the second bolt head 3 is fixedly provided with an inner hexagonal hole 4, one side of the inner hexagonal hole 4 is fixedly provided with an adjusting groove 5, the adjusting groove 5 is internally provided with the adjusting rod 6, the other side of the first bolt head 2 is fixedly provided with a screw rod 7, the middle position of the screw rod 7 is fixedly provided with a screw thread section 8, the screw thread section 8 is fixedly provided with the first clamping groove 9 along the axial direction of the bolt body 1, one end of the adjusting rod 6 is fixedly connected with the anti-falling device 11 arranged inside the screw rod 7, anticreep device 11 includes arc 12, bar fixture block 13, spring 14, fixed plate 15 and pivot 16, fixed plate 15 is fixed to be set up in the inside cavity of screw rod 7, the one end of fixed plate 15 is articulated with arc 12 through pivot 16, the even a plurality of spring 14 that is provided with in interval between arc 12 and the fixed plate 15, the fixed bar fixture block 13 that is provided with in top of arc 12, there is nut 10 at the other end of bolt main part 1 through threaded connection, the fixed screw hole 17 that is provided with on nut 10, second screens groove 18 has been seted up to the fixed on screw hole 17.

In this embodiment, preferably, the first bolt head 2 and the second bolt head 3 are both hexagonal bolt heads, and the outer diameter of the second bolt head 3 is smaller than that of the first bolt head 2.

In this embodiment, preferably, the strip-shaped fixture block 13 is matched with the first and

second fixture grooves

9 and 18.

In this embodiment, preferably, a waterproof coating is provided on the arc-shaped plate 12, and the arc-shaped plate 12 is attached to the inner wall of the screw 7.

In this embodiment, it is preferable that the adjusting groove 5 is communicated with an inner cavity of the screw 7.

In this embodiment, it is preferable that the thread segments 8 are provided with threads at regular intervals.

It should be noted that, when the double-bolt head bolt is used, the adjusting rod 6 is pressed down, the spring 14 is compressed to drive the bar-shaped fixture block 13 on the arc-shaped plate 12 to shrink into the cavity inside the screw rod 7, then the bolt main body 1 is installed in the installation hole on the equipment to be installed, the nut 10 is screwed on the screw rod 7 through the screw thread, the adjusting rod 6 is loosened, the spring 14 rebounds, so that the bar-shaped fixture block 13 is embedded into the second clamping groove 18 formed on the nut 10, thereby fixing the nut 10 and preventing the nut 10 from falling off, by arranging the first bolt head 2 and the second bolt head 3, when the double-bolt head bolt is to be fixedly connected in a narrow space and an outer hexagonal wrench is to be used, the first bolt head 2 or the second bolt head 3 can be selected to be fixed according to actual conditions, which is flexible and convenient, after the inner hexagonal hole 4 is arranged in the bolt head, even the hexagonal bolt head of outside warp, still can utilize interior hexagonal hole 4 to dismantle the bolt fast, increased the life of bolt, be favorable to popularizing and promoting.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a two bolt head bolts, includes bolt main part (1), first bolt head (2), second bolt head (3), adjusts pole (6), first screens groove (9), nut (10) and anticreep device (11), its characterized in that: the bolt comprises a bolt body (1), wherein a first bolt head (2) is fixedly arranged at the end part of the bolt body (1), a second bolt head (3) is fixedly arranged on the first bolt head (2), an inner hexagonal hole (4) is fixedly formed in the upper end face of the second bolt head (3), an adjusting groove (5) is fixedly formed in one side of the inner hexagonal hole (4), an adjusting rod (6) is arranged in the adjusting groove (5), a screw rod (7) is fixedly arranged on the other side of the first bolt head (2), a thread section (8) is fixedly arranged in the middle of the screw rod (7), a first clamping groove (9) is fixedly formed in the thread section (8) along the axial direction of the bolt body (1), one end of the adjusting rod (6) is fixedly connected with an anti-falling device (11) arranged inside the screw rod (7), and the anti-falling device (11) comprises an arc-shaped plate (12), Bar fixture block (13), spring (14), fixed plate (15) and pivot (16), fixed plate (15) are fixed to be set up in the inside cavity of screw rod (7), the one end of fixed plate (15) is articulated through pivot (16) and arc (12), the even a plurality of spring (14) that is provided with in interval between arc (12) and fixed plate (15), the fixed bar fixture block (13) that is provided with in top of arc (12), the other end of bolt main part (1) has nut (10) through threaded connection, fixed screw hole (17) that are provided with on nut (10), second screens groove (18) have been seted up to fixed on screw hole (17).

2. A double stud head bolt according to claim 1, wherein: the first bolt head (2) and the second bolt head (3) are both hexagonal bolt heads, and the outer diameter of the second bolt head (3) is smaller than that of the first bolt head (2).

3. A double stud head bolt according to claim 1, wherein: the strip-shaped clamping block (13) is matched with the first clamping groove (9) and the second clamping groove (18).

4. A double stud head bolt according to claim 1, wherein: the waterproof coating is arranged on the arc-shaped plate (12), and the arc-shaped plate (12) is attached to the inner wall of the screw rod (7).

5. A double stud head bolt according to claim 1, wherein: the adjusting groove (5) is communicated with the inner cavity of the screw rod (7).

6. A double stud head bolt according to claim 1, wherein: the thread section (8) is uniformly provided with threads at intervals.