CN109306991B

CN109306991B - Unilateral bolt fastener

Info

Publication number: CN109306991B
Application number: CN201811390141.3A
Authority: CN
Inventors: 尹苑苑; 李爱根
Original assignee: Anhui Jinming Connection System Co ltd
Current assignee: Anhui Jinming connection system Co.,Ltd.
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2020-12-11
Anticipated expiration: 2038-11-21
Also published as: CN109306991A

Abstract

The invention relates to the technical field of fastening equipment, in particular to a unilateral bolt fastener which comprises an outer baffle, a stud, a limiting mechanism, a traction rope, a winding drum and a lock nut; when workpieces with openings on two sides are connected and fixed, a stud can be normally screwed in, then a lock nut is screwed on the other side, the workpieces are clamped on two sides, when cavity workpieces with openings on only one side are connected and fixed, the lock nut can be screwed in advance, then a winding drum is rotated, a traction rope is wound on the winding drum and drives a limiting mechanism to rotate, when a stop lever is rotated to be attached to the inner wall of the workpiece, a second limiting screw is screwed on to fix the winding drum, then the lock nut is reversely rotated to be attached to the workpiece, the workpiece is placed between the lock nut and the stop lever and is clamped and limited by the lock nut and the stop lever, and therefore limiting and fixing when the workpiece is opened on a single side are achieved, the fastener can meet two requirements of opening on the single side and opening on the two sides, and the application range is wide.

Description

Unilateral bolt fastener

Technical Field

The invention relates to the technical field of fastening equipment, in particular to a unilateral bolt fastener.

Background

In the fields of civil and architectural engineering and mechanical installation, the requirement for connecting and fastening structural members is increasing; in the case of bolts which are currently in common use, when fastening and connecting members, workers need to work on both sides of the members at the same time, namely, insert a bolt with a nut on one side and then tighten the nut with a tool on the other side.

The unilateral bolt fastener is mainly applied to the assembly of workpieces with openings at two sides, and a nut cannot be screwed on a workpiece assembly structure with a screw hole at only one side. In view of this, the present invention provides a one-sided bolt fastener having the following features:

(1) when workpieces with openings on two sides are connected and fixed, a stud can be normally screwed in, then a lock nut is screwed on the other side, two sides of the workpieces are clamped, and when cavity workpieces with openings on only one side are connected and fixed, the lock nut can be screwed in advance, then a winding drum is rotated, so that a traction rope is wound on the winding drum and drives a limiting mechanism to rotate;

(2) according to the unilateral bolt fastener, when the stop lever is rotated to be attached to the inner wall of a workpiece, the first limiting screw is screwed on to fix the winding drum, and then the locking nut is reversed to be attached to the workpiece, so that the workpiece is placed between the locking nut and the stop lever and is clamped and limited by the locking nut and the stop lever, and therefore limiting and fixing are achieved when the fastener is opened on a single side, and the fastener can meet two requirements of opening on the single side and opening on two sides.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a unilateral bolt fastener, when a workpiece with openings on two sides is connected and fixed, a stud can be normally screwed in, then a lock nut is screwed on the other side to clamp two sides of the workpiece, when a cavity workpiece with an opening on only one side is connected and fixed, the lock nut can be screwed in advance, then a winding drum is rotated, a traction rope is wound on the winding drum and drives a limiting mechanism to rotate, when a stop lever rotates to be attached to the inner wall of the workpiece, a first limit screw is screwed on to fix the winding drum, then the lock nut is reversely rotated to enable the lock nut to be attached to the workpiece, so that the workpiece is placed between the lock nut and the stop lever and is clamped and limited by the lock nut and the stop lever, thereby realizing the limiting and fixing when the opening is performed on one side, and enabling the fastener to meet two requirements of the opening on one side and the.

The technical scheme adopted by the invention for solving the technical problems is as follows: a unilateral bolt fastener comprises an outer baffle, a stud, a limiting mechanism, a traction rope, a winding drum and a lock nut; the inner side surface of the outer baffle is vertically provided with the stud; the end part of the stud is connected with the limiting mechanism, and the limiting mechanism is used for blocking the position of the stud; the outer wall of the outer baffle is embedded with the winding drum, and the outer wall of the winding drum is wound with the traction rope; the traction rope penetrates through the inner part of the stud, and the end part of the traction rope is connected with the limiting mechanism; the haulage rope is used for driving stop gear rotates, stop gear is used for rotating locking the double-screw bolt.

Specifically, a storage tank is arranged on the outer wall of the outer baffle, and the interior of the storage tank is rotatably connected with the winding drum; the end part of the winding drum is in threaded connection with a first limiting screw.

Specifically, a horizontal first circulation channel is formed in the center of the inner portion of the stud, a second circulation channel is communicated with one end, far away from the outer baffle, of the first circulation channel, and the second circulation channel and the first circulation channel are arranged in an angle of 120 degrees.

Specifically, the haulage rope runs through in outer baffle, first circulation passageway and second circulation passageway, the tip of haulage rope is equipped with the buckle, the haulage rope with the opposite other end of buckle twines in the outer wall of reel.

Specifically, stop gear includes fixed plate, support column and pin, the fixed plate passes through the second stop screw connection the terminal surface of double-screw bolt, the lateral surface of fixed plate is equipped with perpendicularly the support column, the tip of support column is rotated and is connected the pin, the outer wall of pin is equipped with the go-between, the go-between lock is connected the buckle.

Specifically, an included angle between the stop lever and the support column is 90-180 degrees, and the support column and the first circulation channel are located at the same center line.

The invention has the beneficial effects that:

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a preferred embodiment of a single-sided bolt fastener according to the present invention;

FIG. 2 is a schematic structural view of the limiting mechanism shown in FIG. 1;

FIG. 3 is a schematic view of the outer wall structure of the outer baffle shown in FIG. 1;

fig. 4 is an enlarged schematic view of a portion a shown in fig. 1.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 1.

In the figure: 1. the outer baffle plate comprises an outer baffle plate 11, a storage groove 2, a stud 21, a first circulation channel 22, a second circulation channel 3, a winding drum 31, a first limiting screw 4, a limiting mechanism 41, a fixing plate 411, a second limiting screw 42, a supporting column 43, a stop lever 431, a connecting ring 5, a traction rope 51, a retaining ring 6 and a locking nut.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, the unilateral bolt fastener of the present invention includes an outer baffle 1, a stud 2, a limiting mechanism 4, a traction rope 5, a winding drum 3 and a lock nut 6; the inner side surface of the outer baffle plate 1 is vertically provided with the stud 2; the end part of the stud 2 is connected with the limiting mechanism 4, and the limiting mechanism 4 is used for blocking the position of the stud 2; the winding drum 3 is embedded in the outer wall of the outer baffle 1, and the traction rope 5 is wound on the outer wall of the winding drum 3; the traction rope 5 penetrates through the stud 2, and the end part of the traction rope 5 is connected with the limiting mechanism 4; the traction rope 5 is used for driving the limiting mechanism 4 to rotate, and the limiting mechanism 4 is used for rotationally locking the stud 2.

Specifically, as shown in fig. 1 and 3, a storage tank 11 is formed on an outer wall of the outer baffle 1, and the reel 3 is rotatably connected inside the storage tank 11; the end part of the winding drum 3 is in threaded connection with a first limiting screw 31; the traction rope 5 can be pulled by rotating the drum 3, and the first limit screw 31 can lock the drum 3.

Specifically, as shown in fig. 1 and 4, a horizontal first flow channel 21 is formed in the center of the inside of the stud 2, a second flow channel 22 is communicated with one end of the first flow channel 21, which is far away from the outer baffle 1, and the second flow channel 22 and the first flow channel 21 are arranged at an angle of 120 °; the movement of the traction rope 5 can be facilitated by the first through-flow barrels 21, the second through-flow passage 22.

Specifically, as shown in fig. 5, the pulling rope 5 penetrates through the outer baffle 1, the first flow channel 21 and the second flow channel 22, a buckle 51 is disposed at an end of the pulling rope 5, and the other end of the pulling rope 5 opposite to the buckle 51 is wound around the outer wall of the winding drum 3; the hauling cable 5 is used for driving the limiting mechanism 4 to rotate, so that internal limiting is achieved.

Specifically, as shown in fig. 2, the limiting mechanism 4 includes a fixing plate 41, a supporting column 42 and a stop lever 43, the fixing plate 41 is connected to the end surface of the stud 2 through a second limiting screw 411, the supporting column 42 is vertically arranged on the outer side surface of the fixing plate 41, the end of the supporting column 42 is rotatably connected to the stop lever 43, a connecting ring 431 is arranged on the outer wall of the stop lever 43, and the connecting ring 431 is connected to the retaining ring 51 in a buckling manner; the included angle between the stop lever 43 and the supporting column 42 is 90-180 degrees, and the supporting column 42 and the first flow channel 21 are located at the same center line; the limiting and fixing of the unilateral opening can be realized through the limiting mechanism 4, and the limiting mechanism 4 can be freely detached.

When the workpieces with two sides being open are connected and fixed, the stud 2 can be normally screwed in and then the lock nut 6 is screwed on the other side, the workpieces are clamped on two sides, when the cavity workpieces with only one side open are connected and fixed, the lock nut 6 can be screwed in advance, then the winding drum 3 is rotated, the traction rope 5 is wound on the winding drum 3 and drives the limiting mechanism 4 to rotate, when the stop lever 43 is rotated to be attached to the inner wall of the workpiece, the first limiting screw 31 is screwed up, the winding drum 3 is fixed, the lock nut 6 is rotated reversely to be attached to the workpiece, the workpiece is arranged in the lock nut 6, the stop lever 43 is fixed between the lock nut 6 and clamped and limited by the stop lever 43, the limiting and fixing when the single side is opened is realized, and the fastener can meet two requirements of single-side opening and double-side opening. The method specifically comprises the following steps:

(1) when workpieces with openings on two sides are fixed, the limiting mechanism 4 is in a detachable state, then the stud 2 is screwed in and penetrates through the two threaded holes, and then the locking nut 6 is screwed up, so that the workpieces are clamped by the outer baffle plate 1 and the locking nut 6 from two sides;

(2) when a cavity workpiece with an opening on one side is fixed, the fixing plate 41 is fixed at the end part of the stud 2 through a second limiting screw 411; a locking nut 6 is screwed on the outer wall of the stud 2 in advance and is arranged at one end close to the outer baffle 1;

(3) then, the stud 2 is screwed into a threaded hole on one side and enters a cavity workpiece, the limiting mechanism 4 enters the workpiece along with the stud, after the stud is screwed into a proper position, the winding drum 3 is rotated, the traction rope 5 is wound on the outer wall of the winding drum 3, the traction rope 5 drives the stop lever 43 to approach and rotate through the connecting ring 431 and the retaining ring 51, the stop lever 43 is rotated to be attached to the inner end face of the threaded hole of the workpiece, the traction rope 5 circulates along the first circulation channel 21 and the second circulation channel 22 and is wound on the outer wall of the winding drum 3, and finally the first limiting screw 31 is screwed on to fix the winding drum 3, so that the stop lever 43 blocks and limits the position from the inside of the workpiece; then, the operator rotates the lock nut 6 on the outer wall of the stud 2 reversely until the lock nut 6 is attached to the outer wall of the workpiece, so that the workpiece is arranged between the lock nut 6 and the stop lever 43 and is clamped and limited by the lock nut 6 and the stop lever 43.

When workpieces with openings on two sides are connected and fixed, the stud 2 can be normally screwed in, then the lock nut 6 is screwed on the other side, the workpieces are clamped on two sides, when cavity workpieces with openings on only one side are connected and fixed, the lock nut 6 can be screwed in advance, then the winding drum 3 is rotated, the traction rope 5 is wound on the winding drum 3 and drives the limiting mechanism 4 to rotate, when the stop lever 43 is rotated to be attached to the inner wall of the workpiece, the first limiting screw 31 is screwed up to fix the winding drum 3, then the lock nut 6 is reversely rotated to be attached to the workpiece, the workpiece is placed between the lock nut 6 and the stop lever 43 and is clamped and limited by the lock nut 6 and the stop lever 43, and therefore limiting and fixing when the workpiece is opened on a single side is achieved, and the fastener can meet two requirements of opening on the single side and opening on the two sides.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A unilateral bolt fastener which characterized in that: the device comprises an outer baffle (1), a stud (2), a limiting mechanism (4), a traction rope (5), a winding drum (3) and a lock nut (6); the inner side surface of the outer baffle (1) is vertically provided with the stud (2); the end part of the stud (2) is connected with the limiting mechanism (4), and the limiting mechanism (4) is used for blocking the position of the stud (2); the outer wall of the outer baffle (1) is embedded with the winding drum (3), and the outer wall of the winding drum (3) is wound with the traction rope (5); the traction rope (5) penetrates through the stud (2), and the end part of the traction rope (5) is connected with the limiting mechanism (4); the traction rope (5) is used for driving the limiting mechanism (4) to rotate, and the limiting mechanism (4) is used for rotationally locking the stud (2);

the outer wall of the outer baffle (1) is provided with a storage tank (11), and the interior of the storage tank (11) is rotatably connected with the winding drum (3); the end part of the winding drum (3) is in threaded connection with a first limiting screw (31); a horizontal first circulation channel (21) is formed in the center of the inner part of the stud (2), a second circulation channel (22) is communicated with one end, far away from the outer baffle (1), of the first circulation channel (21), and the second circulation channel (22) and the first circulation channel (21) are arranged in an angle of 120 degrees; the pulling rope (5) penetrates through the outer baffle (1), the first circulation channel (21) and the second circulation channel (22), a buckle (51) is arranged at the end of the pulling rope (5), and the other end, opposite to the buckle (51), of the pulling rope (5) is wound on the outer wall of the winding drum (3); the limiting mechanism (4) comprises a fixing plate (41), a supporting column (42) and a stop lever (43), the fixing plate (41) is connected with the end face of the stud (2) through a second limiting screw (411), the supporting column (42) is vertically arranged on the outer side face of the fixing plate (41), the end part of the supporting column (42) is rotatably connected with the stop lever (43), a connecting ring (431) is arranged on the outer wall of the stop lever (43), and the connecting ring (431) is connected with the retaining ring (51) in a buckling mode; the included angle between the stop lever (43) and the supporting column (42) is 90-180 degrees, and the supporting column (42) and the first circulation channel (21) are positioned at the same central line;

when workpieces with two sides being provided with openings are connected and fixed, the stud (2) can be normally screwed in and then the lock nut (6) is screwed on the other side, the workpieces are clamped on two sides, when a cavity workpiece with only one side being provided with an opening is connected and fixed, the lock nut (6) can be screwed in advance, the winding drum (3) is rotated, the traction rope (5) is wound on the winding drum (3) and drives the limiting mechanism (4) to rotate, the stop lever (43) is screwed up when being attached to the inner wall of the workpiece, the first limiting screw (31) is screwed up to fix the winding drum (3), the lock nut (6) is then reversely rotated to be attached to the workpieces, the workpieces are placed between the lock nut (6) and the stop lever (43) and are clamped and limited by the lock nut (6) and the stop lever (43), and the limiting and fixing during the opening of a single side is realized, and the fastener can meet the requirements of clamping of, Two kinds of demands of two side openings specifically have:

firstly, when workpieces with openings on two sides are fixed, the limiting mechanism (4) is in a detachable state, then the stud (2) is screwed in and penetrates through the two threaded holes, and then the locking nut (6) is screwed up, so that the workpieces are clamped by the outer baffle (1) and the locking nut (6) from two sides;

fixing a fixing plate (41) at the end part of the stud (2) through a second limiting screw (411) when fixing a cavity workpiece with an opening at one side; a locking nut (6) is screwed on the outer wall of the stud (2) in advance and is arranged at one end close to the outer baffle (1);

thirdly, the stud (2) is screwed into the threaded hole in one side and enters a cavity workpiece, a limiting mechanism (4) enters the workpiece along with the stud, after the stud is screwed into a proper position, the winding drum (3) is rotated, the traction rope (5) is wound on the outer wall of the winding drum (3), the traction rope (5) drives the stop lever (43) to move close and rotate through the connecting ring (431) and the retaining ring (51), the stop lever (43) is rotated to be attached to the inner end face of the threaded hole of the workpiece, the traction rope (5) circulates along the first circulation channel (21) and the second circulation channel (22) and is wound on the outer wall of the winding drum (3), and finally the first limiting screw (31) is screwed up to fix the winding drum (3) so that the stop lever (43) blocks and limits from the inside of the workpiece; and then, the operator rotates the locking nut (6) on the outer wall of the stud (2) reversely until the locking nut (6) is attached to the outer wall of the workpiece, so that the workpiece is arranged between the locking nut (6) and the stop lever (43), and is clamped and limited by the locking nut (6) and the stop lever (43).