CN113775626A

CN113775626A - Torsional shear type bolt with high assembly precision

Info

Publication number: CN113775626A
Application number: CN202110965768.2A
Authority: CN
Inventors: 张东
Original assignee: Individual
Current assignee: Guizhou Hangrui Aviation Precision Parts Manufacturing Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2021-12-10
Anticipated expiration: 2041-08-23
Also published as: CN113775626B

Abstract

The invention discloses a torsional shear type bolt with high assembly precision, relates to the technical field of torsional shear type bolts, and solves the problems that the conventional torsional shear type bolt is mainly of an integrated structure, the bolt cannot be assembled quickly, the integrated torsional shear type bolt is low in fault tolerance rate and difficult to take out again after torsional shear. The torsional shear type bolt with high assembly precision comprises a screw rod; the screw further comprises a ball head seat and unidirectional ring teeth; the bottom of the screw is integrally provided with a ball head seat; the top of the ball head seat is integrally provided with unidirectional ring teeth in a surrounding manner; the outer part of the screw rod is fixedly provided with a nut through threaded connection; through being provided with disconnected piece of cutting, replaced the structure of original bolt integral type, disconnected size of cutting the piece reduces, can reduce manufacturing cost and the manufacturing degree of difficulty, makes things convenient for the rapid Assembly of bolt to the degree of difficulty of taking out after the fracture is low, can remedy when the installation is made mistakes, and the screw rod of retrieving can reuse.

Description

Torsional shear type bolt with high assembly precision

Technical Field

The invention relates to the technical field of torsional shear type bolts, in particular to a torsional shear type bolt with high assembly precision.

Background

The torsional shear type bolt is widely used in the market at present, comprises a screw head, a screw rod, a twisting groove and a quincuncial head, and is mainly characterized in that the torque can be automatically controlled, the torsional shear type bolt is matched with a tightening tool during construction, and the quincuncial head is twisted off after the bolt is tensioned, so that construction is carried out.

Through retrieving for example, patent No. CN209245033U discloses a type bolt is cut to turn round of high assembly precision, including the spiral shell head, fastening groove has been seted up at the top of spiral shell head, just the bottom of spiral shell head has the fastening end through double-screw bolt connection, gasket and nut have been cup jointed respectively to the surface of fastening end, the bottom of fastening end is connected with the plum blossom head through twisting the piece, and this kind of type bolt is cut to turn round of high assembly precision is provided with connecting strip, twist off the piece, twist off groove and plum blossom head, and is installing the bolt, when needing to twist off the plum blossom head, because the twist off groove of twisting off the piece can make when the staff cuts off the plum blossom head, can make the strength of staff's cost littleer, and because twist off piece and connecting strip handing-over position department are cavity, further make twist off the plum blossom head can be more laborsaving, reduced the circumstances that the plum blossom head is difficult to twist off

For another example, patent No. CN210484329U discloses a torsional shear type bolt of high assembly precision, including the bolt main part, the upper end fixedly connected with bolt head of bolt main part, the bottom fixedly connected with screw rod of bolt head, the surface threaded connection of screw rod has the nut main part, the last fixed surface of nut main part is connected with rotates the piece, the first mounting panel of the outer fixed surface of rotation piece upper surface is connected with, just first mounting panel evenly distributed, the upper end fixedly connected with bracing piece of first mounting panel, the upper end swing joint of bracing piece has the movable rod, the upper end fixedly connected with second mounting panel of movable rod, the bracing piece with the surface winding of movable rod has the spring. This kind of torsional shear type bolt of high assembly precision promotes the fixed work piece of clamp plate through rotating the nut main part, plays the buffering guard action through the spring, causes the damage to the bolt when avoiding the work piece to connect for a long time, and the clamp plate rotates when avoiding adjusting through rotating the piece.

However, the torsional shear type bolt used at present is mainly of an integrated structure, the bolt cannot be assembled quickly, the integrated torsional shear type bolt is low in fault tolerance rate, the bolt cannot be taken out again after torsional shear, the anti-loosening capacity is insufficient, and quick assembly is not facilitated.

Disclosure of Invention

Problem (A)

The invention aims to provide a torsional shear type bolt with high assembly precision, and aims to solve the problems that the conventional torsional shear type bolt provided by the background technology is mainly of an integrated structure, the bolt cannot be assembled quickly, the integrated torsional shear type bolt has low fault-tolerant rate, is difficult to take out again after torsional shear, has insufficient anti-loosening capability and is not beneficial to quick assembly.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the torsional shear type bolt with high assembly precision comprises a screw rod; the screw further comprises a ball head seat and unidirectional ring teeth; the bottom of the screw is integrally provided with a ball head seat; the top of the ball head seat is integrally provided with unidirectional ring teeth in a surrounding manner; the outer part of the screw rod is fixedly provided with a nut through threaded connection; the bottom of the nut is of a backing ring structure, and an assembly part is assembled on the outer side of the nut; the assembly further comprises a rotating strip; the main body of the assembly part is divided into a hexagonal ring structure and a shaft bracket structure, and the outer side of the shaft bracket structure is rotatably provided with a rotary strip through hinged connection; the outer side of the bottom of the rotating strip is of a right-angle structure, and the rotating strip can limit rotation by 0-90 degrees through the right-angle structure.

Preferably, the screw further comprises a flower groove; the flower groove is formed in the middle of the top of the screw rod, and the inner side of the flower groove is fixedly provided with a cutting piece in an interference fit mode.

Preferably, the bottom of the cutting piece is matched with the inner side of the flower groove in shape; the top integral type of cutting the piece absolutely is provided with double-deck cylinder structure, and double-deck cylinder structure's top integral type is provided with hexagonal structure.

Preferably, the fitting further comprises a threaded pin; the outer side of the rotary strip is provided with a screw hole, and a threaded pin is fixedly arranged in the screw hole; the rotary bar is fixedly arranged on one side of the assembly part through a threaded pin; the hexagonal ring structure of the assembly part is sleeved outside the nut in an inosculating manner.

Preferably, a shaft cylinder structure is integrally arranged at the top of a shaft frame structure of the assembly part, and a sliding rod is rotatably arranged in the shaft cylinder through a bearing; the top of the sliding rod is provided with a telescopic cylinder in a sliding way; the top of the telescopic cylinder is fixedly provided with a rotating seat.

Preferably, both ends of the rotating seat are provided with screw holes, and both ends of the rotating seat are fixedly provided with threaded telescopic rods through threaded connection; the outer end of the threaded telescopic rod is of a ball head structure, and a fin structure is integrally arranged on the outer side of the ball head structure; the outer side of the threaded telescopic rod is of a smooth structure.

Preferably, the outer end of the bottom of the telescopic cylinder is fixedly provided with a transmission gear through key connection.

Preferably, the outer side of the telescopic cylinder is rotatably provided with an assembling seat through a bearing; one side of the assembling seat extends outwards, a cylindrical structure is integrally arranged at the bottom of the extending part, and a locking gear is rotatably arranged on the outer side of the bottom of the cylindrical structure through a bearing; a cylindrical structure is integrally arranged at the top of the locking gear; the number and the modulus of the teeth of the locking gear are consistent with those of the transmission gear; the bottom of the locking gear is provided with a hexagonal groove structure, and the locking gear can be matched and sleeved on the top of the cut-off piece.

(III) advantageous effects

The torsional shear type bolt with high assembly precision provided by the invention has the advantages that the original bolt integrated structure is replaced by the shear breaking piece, the size of the shear breaking piece is reduced, the manufacturing cost and the manufacturing difficulty can be reduced, the bolt is convenient to assemble quickly, the taking-out difficulty after the fracture is low, the bolt can be repaired when the installation is wrong, and the recycled screw rod can be recycled.

Secondly, the friction of the bulb seat is promoted by the arrangement of the one-way ring teeth, the matched piece can be extruded to generate a concave screw loosening prevention through the one-way structure, the overall stability of the bolt is improved, the assembling mode of the screw is simple, and the rapid assembling is facilitated.

Drawings

FIG. 1 is a schematic perspective side view of an embodiment of the present invention;

FIG. 2 is a schematic bottom view of the embodiment of the present invention;

FIG. 3 is a schematic bottom view of the embodiment of the present invention;

FIG. 4 is a partial bottom view of an embodiment of the present invention;

FIG. 5 is a schematic diagram of a partial side view of an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a screw according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of an assembly according to an embodiment of the present invention;

FIG. 8 is an enlarged partial structural view of part A in the embodiment of the present invention;

in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:

1. a screw; 101. a ball cup seat; 102. unidirectional ring teeth; 103. a flower trough; 2. a nut; 3. cutting off the shearing part; 4. an assembly member; 401. rotating the strips; 402. a threaded pin; 5. a slide bar; 6. a telescopic cylinder; 7. a rotating base; 8. a threaded telescopic rod; 9. a transmission gear; 10. assembling a seat; 11. and locking the gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: a torsional shear type bolt with high assembly precision comprises a screw rod 1; the screw 1 also comprises a ball head seat 101 and a one-way ring tooth 102; the bottom of the screw rod 1 is integrally provided with a ball head seat 101; the top of the ball head seat 101 is integrally provided with unidirectional ring teeth 102 in a surrounding manner; wherein, the screw 1 also comprises a flower groove 103; a flower groove 103 is formed in the middle of the top of the screw rod 1, and a cutting part 3 is fixedly arranged on the inner side of the flower groove 103 in an interference fit manner; wherein, the bottom of the cutting part 3 is matched with the inner side shape of the flower groove 103; the top of the shear-breaking piece 3 is integrally provided with a double-layer cylindrical structure, and the top of the double-layer cylindrical structure is integrally provided with a hexagonal structure; the outer part of the screw rod 1 is fixedly provided with a nut 2 through threaded connection; the bottom of the nut 2 is of a backing ring structure, and the outer side of the nut 2 is provided with an assembly part 4; the fitting 4 further comprises a turnbuckle 401; the main body of the assembly part 4 is divided into a hexagonal ring structure and a shaft bracket structure, and the outer side of the shaft bracket structure is rotatably provided with a rotating strip 401 through hinge connection; the outer side of the bottom of the rotating strip 401 is of a right-angle structure, and the rotating strip 401 can be limited to rotate for 0-90 degrees through the right-angle structure; wherein the fitting 4 further comprises a threaded pin 402; the outer side of the rotating strip 401 is provided with a screw hole, and a threaded pin 402 is fixedly arranged in the screw hole; the rotary bar 401 is fixedly arranged on one side of the assembly part 4 through a threaded pin 402; the hexagonal ring structure of the assembly part 4 is sleeved outside the nut 2 in an inosculating way; the top of the shaft bracket structure of the assembly part 4 is integrally provided with a shaft cylinder structure, and a sliding rod 5 is rotatably arranged in the shaft cylinder through a bearing; the top of the sliding rod 5 is provided with a telescopic cylinder 6 in a sliding way; the top of the telescopic cylinder 6 is fixedly provided with a rotating seat 7; wherein, both ends of the rotating seat 7 are provided with screw holes, and both ends of the rotating seat 7 are fixedly provided with threaded telescopic rods 8 through threaded connection; the outer end of the threaded telescopic rod 8 is of a ball head structure, and a fin structure is integrally arranged on the outer side of the ball head structure; the outer side of the threaded telescopic rod 8 is of a smooth structure.

Wherein, the outer end of the bottom of the telescopic cylinder 6 is fixedly provided with a transmission gear 9 through key connection.

Wherein, the outer side of the telescopic cylinder 6 is rotatably provided with an assembling seat 10 through a bearing; one side of the assembling seat 10 extends outwards, a cylindrical structure is integrally arranged at the bottom of the extending part, and a locking gear 11 is rotatably arranged on the outer side of the bottom of the cylindrical structure through a bearing; a cylindrical structure is integrally arranged at the top of the locking gear 11; the number of teeth and the modulus of the locking gear 11 are consistent with those of the transmission gear 9; the bottom of the locking gear 11 is provided with a hexagonal groove structure, and the locking gear 11 can be matched and sleeved on the top of the shear-breaking piece 3.

The working principle is as follows: during the use, pass screw rod 1 by the bottom of assembly part 4, fix nut 2 in the outside of screw rod 1 from the operation face, after the manual tightening, insert disconnected scissors 3 in flower groove 103 and strike, fix disconnected scissors 3 in flower groove 103 through interference fit, then establish the outside at nut 2 with assembly part 4 cover, establish locking gear 11 cover in the hexagonal structure outer end in top of disconnected scissors 3.

According to the space of operating position can suitably extend screw thread telescopic link 8, extend screw thread telescopic link 8 to both sides through rotatory screw thread telescopic link 8 and increase the torque that roating seat 7 provided to telescopic cylinder 6, it is rotatory to utilize screw thread telescopic link 8 to drive roating seat 7 and telescopic cylinder 6, telescopic cylinder 6 drives drive gear 9 in step and rotates, drive gear 9 drives locking gear 11 through gear drive and rotates, will cut absolutely 3 and screw rod 1 and screw up, cut absolutely 3 automatic cutting to the extreme position after, the part deformation that cuts absolutely 3 simultaneously inlays and establishes in flower groove 103.

When the assembly is wrong, after the broken cutting pieces 3 are impacted by a tool to remove obstacles in the flower groove 103, a new set of broken cutting pieces 3 can be inserted into the flower groove 103, and the assembly parts 4 are installed to reversely rotate the threaded telescopic rods 8 to screw out the screw rods 1.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Torsional shear type bolt of high assembly precision, its characterized in that: comprises a screw (1); the screw (1) also comprises a ball head seat (101) and a one-way ring tooth (102); the bottom of the screw (1) is integrally provided with a ball head seat (101); the top of the ball head seat (101) is integrally provided with unidirectional ring teeth (102) in a surrounding manner; the outer part of the screw rod (1) is fixedly provided with a nut (2) through threaded connection; the bottom of the nut (2) is of a backing ring structure, and an assembly part (4) is assembled on the outer side of the nut (2); the assembly part (4) further comprises a rotary strip (401); the main body of the assembly part (4) is divided into a hexagonal ring structure and a shaft bracket structure, and the outer side of the shaft bracket structure is rotatably provided with a rotating strip (401) through hinged connection; the outer side of the bottom of the rotating strip (401) is of a right-angle structure, and the rotating strip (401) can be limited to rotate by 0-90 degrees through the right-angle structure.

2. The high-assembly-precision twist-shear bolt according to claim 1, characterized in that: the screw (1) also comprises a flower groove (103); a flower groove (103) is formed in the middle of the top of the screw rod (1), and a cutting piece (3) is fixedly arranged on the inner side of the flower groove (103) in an interference fit mode.

3. The high-assembly-precision twist-shear bolt according to claim 2, characterized in that: the bottom of the cutting part (3) is matched with the inner side of the flower groove (103) in shape; the top integral type of cutting off piece (3) is provided with double-deck cylinder structure, and double-deck cylinder structure's top integral type is provided with hexagonal structure.

4. The high-assembly-precision twist-shear bolt according to claim 1, characterized in that: the fitting (4) further comprises a threaded pin (402); the outer side of the rotating strip (401) is provided with a screw hole, and a threaded pin (402) is fixedly arranged in the screw hole; the rotary bar (401) is fixedly arranged on one side of the assembly part (4) through a threaded pin (402); the hexagonal ring structure of the assembly part (4) is sleeved outside the nut (2) in a matching way.

5. The high-assembly-precision twist-shear bolt according to claim 1, characterized in that: a shaft cylinder structure is integrally arranged at the top of a shaft frame structure of the assembly part (4), and a sliding rod (5) is rotatably arranged in the shaft cylinder through a bearing; the top of the sliding rod (5) is provided with a telescopic cylinder (6) in a sliding way; the top of the telescopic cylinder (6) is fixedly provided with a rotating seat (7).

6. The high-assembly-precision twist-shear bolt according to claim 5, characterized in that: both ends of the rotating seat (7) are provided with screw holes, and both ends of the rotating seat (7) are fixedly provided with threaded telescopic rods (8) through threaded connection; the outer end of the threaded telescopic rod (8) is of a ball head structure, and a fin structure is integrally arranged on the outer side of the ball head structure; the outer side of the threaded telescopic rod (8) is of a smooth structure.

7. The high-assembly-precision twist-shear bolt according to claim 5, characterized in that: the outer end of the bottom of the telescopic cylinder (6) is fixedly provided with a transmission gear (9) through key connection.

8. The high-assembly-precision twist-shear bolt according to claim 5, characterized in that: the outer side of the telescopic cylinder (6) is rotatably provided with an assembling seat (10) through a bearing; one side of the assembling seat (10) extends outwards, a cylindrical structure is integrally arranged at the bottom of the extending part, and a locking gear (11) is rotatably arranged on the outer side of the bottom of the cylindrical structure through a bearing; the top of the locking gear (11) is integrally provided with a cylinder structure; the number of teeth and the modulus of the locking gear (11) are consistent with those of the transmission gear (9); the bottom of the locking gear (11) is provided with a hexagonal groove structure, and the locking gear (11) can be matched and sleeved on the top of the cut-off piece (3).