CN219994108U - High-pressure single-head bolt - Google Patents

Abstract

The utility model discloses a high-pressure single-head bolt, which comprises a bolt rod, wherein a bolt is rotationally arranged on the bolt rod in a threaded manner, an abutting chuck abutted against the bolt is connected on the bolt rod in a threaded manner, a sliding cylinder is sleeved on the bolt rod on the other side of the abutting chuck, a buffer connecting sheet is connected with the sliding cylinder, an abutting cylinder is connected with the buffer connecting sheet, openings are formed on two opposite sides of the abutting cylinder, and an expansion core is arranged at the tail end of the bolt rod. And a plurality of abutting friction particles are arranged on the surface of the abutting cylinder at intervals. The expansion core is conical, the diameter of the expansion core is larger than that of the bolt rod, and a plurality of expansion blocks are arranged on the surface of the expansion core at intervals. The expansion block is a triangular block. The utility model has strong practicability.

Description

High-pressure single-head bolt

Technical Field

The utility model relates to the technical field of bolts, in particular to a high-pressure single-head bolt.

Background

Bolts are mechanical parts, and common bolts are cylindrical threaded fasteners with nuts. A fastener consisting of a head part and a screw rod (a cylinder with external threads) needs to be matched with a nut for fastening two parts with through holes. This form of connection is called bolting. If the nut is screwed off the bolt, the two parts can be separated, so the bolt connection belongs to the detachable connection.

In the application of expansion bolts, for example, the application of application number 202222330159.2 is to insert an expansion rubber head into a drill hole, but the expansion rubber head is fastened, and after a long time, the rubber head is not always kept in an expanded state, and can be aged, so that the rubber head is easy to loosen after aging, and is easy to fall off from the drill hole under the action of external force, so that a high-pressure single-head bolt is required to solve the problem.

Disclosure of Invention

The utility model aims to provide a high-pressure single-head bolt, which is characterized in that a bolt rod is plugged into a drilling hole, then the bolt rod is propped against a sliding cylinder through an iron block and the like at the opening of the drilling hole, the bolt rod is outwards pulled by a handheld tool, then the propping cylinder is propped against the inner wall of the drilling hole through an expansion core, the whole bolt rod can be firmly fixed in the drilling hole through propping friction particles on the outer wall of the propping cylinder and the inner wall of the drilling hole, and then the whole bolt rod is in threaded connection with the bolt rod through a bolt which is in threaded rotary connection with the outer end of the bolt rod; the utility model has strong practicability.

The utility model is realized in the following way:

the utility model provides a high pressure single-end bolt, includes the shank of bolt screw thread rotation is equipped with the bolt on the shank of bolt, threaded connection on the shank of bolt have with the butt chuck of bolt butt the cover is equipped with a smooth section of thick bamboo on the shank of bolt on the opposite side of butt chuck, smooth section of thick bamboo is connected with the buffering connection piece is connected with a butt section of thick bamboo the opening has all been seted up on the opposite both sides of butt section of thick bamboo, the tail end of shank of bolt is equipped with the inflation core.

Further, a plurality of abutting friction particles are arranged on the surface of the abutting cylinder at intervals. The expansion core is conical, the diameter of the expansion core is larger than that of the bolt rod, and a plurality of expansion blocks are arranged on the surface of the expansion core at intervals. The expansion block is a triangular block.

Compared with the prior art, the utility model has the beneficial effects that: the whole bolt rod can be firmly fixed in the drill hole by plugging the bolt rod into the drill hole, abutting the sliding cylinder at the hole of the drill hole through an iron block and the like, pulling the bolt rod outwards through a handheld tool, abutting the abutting cylinder on the inner wall of the drill hole through an expansion core, abutting the abutting friction particle on the outer wall of the abutting cylinder with the inner wall of the drill hole, and then connecting the bolt with the bolt rod through threads in threaded connection with the outer side end of the bolt rod; the utility model has strong practicability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the device of the present utility model;

the slide tube 1, the buffer connection piece 2, the notch 21, the abutting tube 3, the abutting friction particle 31, the bolt rod 4, the screw thread 40, the expansion core 41, the expansion block 42, the bolt 5 and the abutting chuck 51.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1, a high-pressure single-head bolt comprises a bolt rod 4, a bolt 5 is rotatably arranged on the bolt rod 4 in a threaded manner, an abutting chuck 51 abutting against the bolt 5 is connected to the bolt rod 4 in a threaded manner, a sliding cylinder 1 is sleeved on the bolt rod 4 on the other side of the abutting chuck 51, a buffer connecting sheet 2 is connected to the sliding cylinder 1, an abutting cylinder 3 is connected to the buffer connecting sheet 2, gaps 21 are formed in two opposite sides of the abutting cylinder 3, and an expansion core 41 is arranged at the tail end of the bolt rod 4.

In this embodiment, a plurality of abutting friction particles 31 are disposed on the surface of the abutting cylinder 3 at intervals. The expansion core 41 is tapered, the diameter of the expansion core 41 is larger than the diameter of the bolt shank 4, and a plurality of expansion blocks 42 are provided on the surface of the expansion core at intervals. The expansion block 42 is a triangular block.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (4)

1. The utility model provides a high pressure single-head bolt which characterized in that: including bolt pole (4) threaded rotation is equipped with bolt (5) on bolt pole (4), threaded connection on bolt pole (4) have with butt chuck (51) of bolt (5) butt be in on the opposite side of butt chuck (51) bolt pole (4) are last to be overlapped and are equipped with smooth section of thick bamboo (1), smooth section of thick bamboo (1) are connected with buffering connection piece (2) are connected with butt section of thick bamboo (3) all set up opening (21) on the both sides that butt section of thick bamboo (3) are relative, the tail end of bolt pole (4) is equipped with expansion core (41).

2. A high pressure single head bolt according to claim 1, wherein a plurality of abutting friction particles (31) are arranged on the surface of the abutting cylinder (3) at intervals.

3. A high pressure single head bolt according to claim 1, characterized in that the expansion core (41) is conical, the diameter of the expansion core (41) is larger than the diameter of the bolt shank (4), and a plurality of expansion blocks (42) are provided at intervals on the surface of the expansion core (41).

4. A high pressure single head bolt according to claim 3, wherein the expansion block (42) is a triangular block.