CN215762729U

CN215762729U - Anti-seismic anti-loosening fastening structure

Info

Publication number: CN215762729U
Application number: CN202122084883.7U
Authority: CN
Inventors: 于磊
Original assignee: Jinneng Chemical Qingdao Co Ltd
Current assignee: Jinneng Chemical Qingdao Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-08
Anticipated expiration: 2031-08-31

Abstract

The utility model provides an anti-seismic anti-loosening fastening structure which comprises a stud main body and a nut main body, wherein the bottom of the stud main body is fixedly connected with an inner circular threaded column, the bottoms of the stud main body and the inner circular threaded column extend and are connected to the inner side of the nut main body in a threaded manner, an annular groove is formed in the outer portion of the inner circular threaded column, and the left side and the right side of the inner portion of the nut main body are fixedly connected with spring pins. The utility model discloses a, through setting up double-screw bolt main part and nut main part, circle screw thread post in the bottom fixedly connected with of double-screw bolt main part, and double-screw bolt main part and the equal screw thread of interior circle screw thread post in the inboard of nut main part, set up the annular groove on the interior circle screw thread post, and the spring catch is all installed to the inside both sides of nut main part, when double-screw bolt main part and interior circle screw thread post screw fastening target in place, press the spring catch, make two equal joint of spring catch to the annular groove in, it is better to make the device reach fastening ability, play the effect of taking precautions against earthquakes and preventing moving.

Description

Anti-seismic anti-loosening fastening structure

Technical Field

The utility model relates to the technical field of anti-loose fastening structures, in particular to an anti-seismic anti-loose fastening structure.

Background

The bolt and the nut are used as fasteners and are parts for tightly connecting mechanical equipment, the fasteners are various in variety, and all countries have standards, and the fasteners are indispensable elements of all production and manufacturing machines.

In the stable mechanical equipment in daily life, the connection between the bolt and the nut is very stable and safe, the fastening effect can be kept for a long time, but if the bolt is applied to equipment with certain amplitude and frequency, the situation becomes more complex.

The connecting structure of bolt and nut is under certain range and frequency, and connecting structure can take place to resonate, and the self vibration frequency of bolt and nut exists the difference moreover, leads to the connecting piece to have the vibration frequency difference each other to make each connecting piece can produce certain displacement among the connecting structure, lead to connecting structure not hard up, the not hard up of bolt, nut promptly, and then influence the stability and the security of equipment operation, for this we propose a locking fastening structure of antidetonation and solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an anti-seismic anti-loosening fastening structure which has the advantages of better fastening capacity, shock resistance, looseness prevention and the like, and solves the problem that the connection structure is loosened due to the vibration frequency difference among connecting pieces caused by vibration in the prior art.

(II) technical scheme

In order to achieve the purposes of better fastening capacity and shock resistance and looseness prevention, the utility model provides the following technical scheme: the utility model provides an anti-loosening fastening structure of antidetonation, includes double-screw bolt main part and nut main part, circle screw thread post in the bottom fixedly connected with of double-screw bolt main part, the inboard of screw thread connection to nut main part is all extended and threaded connection in the bottom of double-screw bolt main part and circle screw thread post, the annular groove has been seted up to the outside of circle screw thread post, the equal fixedly connected with spring catch of the inside left and right sides of nut main part, two the equal joint in annular groove's of one side that the spring catch is relative inboard.

Preferably, the stud main body is a full-thread stud, the nut main body is an internal thread nut, and the front section of the inner side of the nut main body is in a convex shape.

Preferably, the both sides of nut main part inside have all been seted up the mounting groove, two the spring catch is installed respectively in the inboard of two mounting grooves.

Preferably, the diameter of the inner circular threaded column is smaller than that of the stud body, and the inner circular threaded column is a full-thread stud.

Preferably, the spring pin comprises a positioning pin and a connecting spring, two ends of the connecting spring are respectively fixedly connected with the positioning pin and the nut main body, one end of the positioning pin is inserted into the annular groove, the other end of the positioning pin is slidably connected with the nut main body and stretches out of the nut main body, and the connecting spring is sleeved on the positioning pin.

Compared with the prior art, the utility model provides an anti-seismic, anti-loosening and fastening structure which has the following beneficial effects:

through setting up double-screw bolt main part and nut main part, circle screw post in the bottom fixedly connected with of double-screw bolt main part, and double-screw bolt main part and the equal screw thread of circle screw post in the inboard of nut main part, set up the annular groove on the circle screw post, and the inside both sides of nut main part all install the spring catch, when double-screw bolt main part and the equal screw thread of circle screw post screw fastening target in place, press the spring catch, make two equal joint of spring catch to the annular groove in, it is better to make the device reach fastening ability, play the shockproof effect of locking moving.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure A of FIG. 2 according to the present invention;

fig. 3 is a schematic perspective view of the connection structure of the internal threaded column and the annular groove of the present invention.

In the figure: 1. a stud body; 2. a nut body; 3. an inner threaded column; 4. an annular groove; 5. a spring pin; 501. positioning pins; 502. connecting a spring; 6. and (4) mounting the groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an anti-seismic, anti-loosening and fastening structure comprises a stud main body 1 and a nut main body 2, wherein the bottom of the stud main body 1 is fixedly connected with an inner circular threaded column 3, the bottoms of the stud main body 1 and the inner circular threaded column 3 extend and are in threaded connection with the inner side of the nut main body 2, an annular groove 4 is formed in the outer part of the inner circular threaded column 3, spring pins 5 are fixedly connected to the left side and the right side of the inner part of the nut main body 2, and the opposite sides of the two spring pins 5 are clamped in the inner side of the annular groove 4;

through setting up double-screw bolt main part 1 and nut main part 2, circle screw post 3 in the bottom fixedly connected with of double-screw bolt main part 1, and double-screw bolt main part 1 and the equal screw thread of circle screw post 3 are in the inboard of nut main part 2, circular groove 4 has been seted up on the circle screw post 3, and spring catch 5 is all installed to 2 inside both sides of nut main part, when double-screw bolt main part 1 and the 3 spiral shell fastenings of circle screw post are in place, press spring catch 5, make two equal joint of spring catch 5 to in the circular groove 4, it is better to make the device reach fastening ability, play shockproof locking effect that moves.

Further, the stud body 1 is a full-thread stud, the nut body 2 is an internal thread nut, and the front section of the inner side of the nut body 2 is in a convex shape;

through setting up double-screw bolt main part 1 for full thread double-screw bolt, be applicable to multiple connection organism and end cover on rotating equipment, nut main part 2 is the internal thread nut, can effectively protect double-screw bolt main part 1 to expose in the air, and the section is the type of convexity in the normal view of 2 inboards of nut main part, can be stable with double-screw bolt

main part

1 and 3 threaded connection of interior round thread post, increased the durability of device.

Further, mounting grooves 6 are formed in two sides of the interior of the nut body 2, and the two spring pins 5 are mounted on the inner sides of the two mounting grooves 6 respectively;

through all having seted up mounting groove 6 in the inside both sides of nut main part 2, make spring catch 5 but stable installation in mounting groove 6, increased the practicality of device.

Furthermore, the diameter of the inner circle thread column 3 is smaller than that of the stud body 1, and the inner circle thread column 3 is a full thread stud;

the diameter through setting up interior round thread post 3 is less than double-screw bolt main part 1, makes the fastening effect of interior round thread post 3 better, and interior round thread post 3 is the full thread double-screw bolt, has further promoted the fastening ability of device.

Further, the spring pin 5 comprises a positioning pin 501 and a connecting spring 502, two ends of the connecting spring 502 are respectively fixedly connected with the positioning pin 501 and the nut body 2, one end of the positioning pin 501 is inserted into the annular groove 4, the other end of the positioning pin 501 is slidably connected to the nut body 2 and extends out of the nut body 2, and the connecting spring 502 is sleeved on the positioning pin 501;

through setting up spring catch 5 and including locating pin 501 and coupling spring 502, locating pin 501 can be controlled its left and right sides displacement by outside pulling, and coupling spring 502 can make locating pin 501 remain the power that promotes all the time to the joint can be stabilized in annular groove 4 to spring catch 5, has increased the practicality of device.

The working principle is as follows: through setting up double-screw bolt main part 1 and nut main part 2, circle screw post 3 in the bottom fixedly connected with of double-screw bolt main part 1, and double-screw bolt main part 1 and the equal screw thread of circle screw post 3 are in the inboard of nut main part 2, circular groove 4 has been seted up on circle screw post 3, and spring catch 5 is all installed to the inside both sides of nut main part 2, when double-screw bolt main part 1 and the 3 spiral shell fastenings of circle screw post are in place, press spring catch 5, make two equal joint of spring catch 5 to the circular groove 4 in, it is better to make the device reach fastening ability, play the effect of taking precautions against earthquakes and locking not hard up, the connecting piece that has solved among the prior art because the vibration leads to has the vibration frequency difference each other, lead to the not hard up problem of connection structure.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-loose fastening structure of antidetonation, includes double-screw bolt main part (1) and nut main part (2), its characterized in that: circle screw post (3) in the bottom fixedly connected with of double-screw bolt main part (1), the inboard of screw nut main part (2) is all extended and threaded connection to in the bottom of double-screw bolt main part (1) and circle screw post (3), annular groove (4) have been seted up to the outside of circle screw post (3), the equal fixedly connected with spring catch (5) of the inside left and right sides of nut main part (2), two the equal joint in the inboard of annular groove (4) in one side that spring catch (5) are relative.

2. An anti-seismic, anti-loosening and fastening structure according to claim 1, characterized in that: stud main part (1) is the full thread stud, nut main part (2) are the internal thread nut, the front view cross-section of nut main part (2) inboard is the type of protruding font.

3. An anti-seismic, anti-loosening and fastening structure according to claim 1, characterized in that: mounting grooves (6) are formed in two sides of the interior of the nut body (2), and the spring pins (5) are mounted on the inner sides of the two mounting grooves (6) respectively.

4. An anti-seismic, anti-loosening and fastening structure according to claim 1, characterized in that: the diameter of the inner circle thread column (3) is smaller than that of the stud body (1), and the inner circle thread column (3) is a full thread stud.

5. An anti-seismic, anti-loosening and fastening structure according to claim 1, characterized in that: spring catch (5) include locating pin (501) and coupling spring (502), the both ends of coupling spring (502) respectively with locating pin (501) and nut main part (2) fixed connection, the one end plug-in of locating pin (501) connects to the inside of annular groove (4), the other end sliding connection of locating pin (501) in nut main part (2) and stretch out in nut main part (2), coupling spring (502) cover is located on locating pin (501).