CN213088472U

CN213088472U - Anti-loosening fastener

Info

Publication number: CN213088472U
Application number: CN202021595395.1U
Authority: CN
Inventors: 徐能明
Original assignee: Nantong Xinhong Electronic Technology Co ltd
Current assignee: Nantong Xinhong Electronic Technology Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-04-30
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a locking fastener, which comprises a protective device and a pin shaft; the protection device comprises: the protection device comprises a top cover, two groups of inserting plates and a fixed seat, wherein one end of the fixed seat is provided with a sealing groove, the other end of the fixed seat is provided with an annular groove, the middle part of the fixed seat is provided with a through hole, the middle part of the bottom end of the sealing groove is provided with a limiting groove, the top cover is arranged in the sealing groove, and the bottom end of the top cover is provided with four inserting plates; pin shaft: two groups of the fixing seats are respectively inserted into through holes in the middle of the two fixing seats, a limiting plate is welded at one end of each pin shaft, the limiting plates are positioned in the limiting grooves, slots corresponding to the inserting plates are formed in the top ends of the limiting plates, the slots are in insertion fit with the inserting plates, the end part of one pin shaft is connected with a threaded cylinder, the end part of the other pin shaft is connected with a screw rod, and the screw rod is in threaded connection with the threaded cylinder; the fastening effect of the fastening piece is good, the corrosion of external corrosive liquid can be resisted, and the fastening piece is not easy to loosen.

Description

Anti-loosening fastener

Technical Field

The utility model relates to a fastener technical field specifically is a locking fastener.

Background

The fastener is a mechanical part which has fastening and connecting functions and is widely applied, the fastener has wide application industries, including energy, electronics, electrical appliances, machinery, chemical engineering, metallurgy, dies, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical engineering, instruments, articles and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a locking fastener, the fastening of this fastener is effectual, can resist the erosion of external corrosive liquids, and difficult production is not hard up, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a locking fastener comprises a protective device and a pin shaft;

the protection device comprises: the protection device comprises a top cover, two groups of inserting plates and a fixed seat, wherein one end of the fixed seat is provided with a sealing groove, the other end of the fixed seat is provided with an annular groove, the middle part of the fixed seat is provided with a through hole, the middle part of the bottom end of the sealing groove is provided with a limiting groove, the top cover is arranged in the sealing groove, and the bottom end of the top cover is provided with four inserting plates;

pin shaft: two groups of the fixing seats are respectively inserted into through holes in the middle of the two fixing seats, a limiting plate is welded at one end of each pin shaft, the limiting plates are positioned in the limiting grooves, slots corresponding to the inserting plates are formed in the top ends of the limiting plates, the slots are in insertion fit with the inserting plates, the end part of one pin shaft is connected with a threaded cylinder, the end part of the other pin shaft is connected with a screw rod, and the screw rod is in threaded connection with the threaded cylinder;

wherein: transition fit between the inner wall of top cap and seal groove, its height value equals with the degree of depth value of seal groove.

Further, still include anti-skidding stripe, anti-skidding stripe evenly establishes the tip of keeping away from the top cap at the fixing base, sets up anti-skidding stripe, can prevent the fixing base and treat that the slip appears between the connecting piece.

Further, still include the rubber circle, the rubber circle is installed in the annular groove, and its thickness value is greater than the degree of depth value of annular groove, and the rubber circle can improve and treat the frictional force between the connecting piece, can play the guard action simultaneously.

Further, still include fastener, fastener includes annular stripper plate, spring and telescopic link, the stiff end of telescopic link is fixed in the bottom of annular groove, and its flexible end is connected with annular stripper plate, and its side has cup jointed the spring, annular stripper plate and annular groove sliding connection, spring structure can improve certain elasticity, improves the compactness that screw rod and thread barrel are connected.

Further, still include fixture block and draw-in groove, the bottom at the seal groove is seted up to the draw-in groove, the fixture block is installed in the bottom of top cap, and it cooperates with the draw-in groove joint, and the fixture block cooperates with the draw-in groove joint, conveniently opens quick-witted top cap that closes.

Compared with the prior art, the beneficial effects of the utility model are that: this locking fastener has following benefit:

this locking fastener adopts top cap and fixing base structure, can protect the connection position, avoids the connection position to be corroded by external water or corrosive liquid, can be in the long-time fastening state that keeps in the use, can adopt the rubber circle to contact in the fixing base with the contact position department of treating the connecting piece simultaneously, improves sealed effect, prevents that the fixing base from producing not hard up, also can utilize spring structure, extrudees, improves the fastening nature of being connected between a thread section of thick bamboo and the screw rod.

Drawings

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

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

fig. 3 is a schematic view of the cross-sectional structure of the plane a-a of the present invention.

In the figure: 1 threaded cylinder, 2 screw rods, 3 anti-slip stripes, 4 protective devices, 41 top covers, 42 plug boards, 43 fixing seats, 5 fastening devices, 51 annular extrusion plates, 52 springs, 53 telescopic rods, 6 rubber rings, 7 sealing grooves, 8 clamping blocks, 9 clamping grooves, 10 pin shafts, 11 slots, 12 annular grooves, 13 limiting grooves and 14 limiting plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a locking fastener comprises a protective device 4 and a pin shaft 10;

the protection device 4: comprises a top cover 41, an inserting plate 42 and a fixed seat 43, the protection device 4 is provided with two groups, one end of the fixed seat 43 is provided with a sealing groove 7, the other end of the fixed seat is provided with an annular groove 12, the middle part of the fixed seat is provided with a through hole, the fixed seat 43 plays a protection role, the fastener mainly depends on a screw rod 2 and a thread cylinder 1 which are connected by a pin shaft 10 to fix, the fixed seat 43 can play a sealing role, the rubber ring 6 is also included, the rubber ring 6 is installed in the annular groove 12, the thickness value of the rubber ring is larger than the depth value of the annular groove 12, the rubber ring 6 is installed to be contacted with a to-be-connected part, the connection tightness can be improved, meanwhile, the fixed seat 43 and the to-be-connected part can be prevented from being loosened, the fastening device 5 is also included, the fastening device 5, the side surface of the sealing device is sleeved with a spring 52, an annular extrusion plate 51 is connected with an annular groove 12 in a sliding manner, the spring 52 can generate extrusion force on the annular extrusion plate 51, and the annular extrusion plate 51 extrudes the surface of a to-be-connected piece, so that the tight connection between the fixing seat 43 and the surface of the to-be-connected piece is ensured, the middle part of the bottom end of the sealing groove 7 is provided with a limiting groove 13, the top cover 41 is arranged in the sealing groove 7, the bottom end of the top cover 41 is provided with four insertion plates 42, the top cover 41 can seal the fixing seat 43, so that the fastener only exposes the top cover 41 and the fixing seat 43 outside, the sealing device also comprises a clamping block 8 and a clamping groove 9, the clamping groove 9 is arranged at the bottom end of the sealing groove 7, the clamping block 8 is arranged at the bottom end of the top cover 41 and is in clamping fit with the clamping, the anti-skid stripes 3 can improve the friction force between the fixed seat 43 and the surface of the part to be connected;

and (3) pin shaft 10: two groups of the pin shafts are respectively inserted into through holes in the middle of the two fixing seats 43, one end of each pin shaft 10 is welded with a limiting plate 14, the limiting plates 14 are positioned in a limiting groove 13, the top ends of the limiting plates are provided with slots 11 corresponding to the inserting plates 42, the slots 11 are in insertion fit with the inserting plates 42, the limiting plates 14 play a role in fixing and can be matched with the inserting plates 42 on the top cover 41, the end part of one pin shaft 10 is connected with a threaded cylinder 1, the end part of the other pin shaft 10 is connected with a screw rod 2, the screw rod 2 is in threaded connection with the threaded cylinder 1, the threaded cylinder 1 and the screw rod 2 are main fixing parts and are tightly connected and not;

wherein: transition fit is carried out between top cap 41 and the inner wall of seal groove 7, and liquid passing between the two is avoided, and the height value of the top cap is equal to the depth value of seal groove 7.

When in use: at first, the pin shaft 10 with the threaded cylinder 1 is inserted into a through hole in the middle of the fixing seat 43, then the top cover 41 is aligned with the sealing groove 7, the clamping block 8 is clamped in the clamping groove 9, the inserting plate 42 is inserted into the inserting groove 11, the limiting plate 14 is limited and fixed, the fixed fixing seat 43 is abutted to the surface of the connecting piece, the threaded cylinder 1 is inserted into the space between the two connecting pieces, the second fixing seat 43 is abutted to the surface of the other connecting piece, the second pin shaft 10 is screwed, the screw rod 2 is in threaded connection with the threaded cylinder 1, the top cover 41 is screwed up and closed, and connection of the connecting pieces is completed.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A check fastener characterized by: comprises a protective device (4) and a pin shaft (10);

guard (4): the protective device comprises a top cover (41), inserting plates (42) and a fixed seat (43), wherein two groups of protective devices (4) are arranged, one end of the fixed seat (43) is provided with a sealing groove (7), the other end of the fixed seat is provided with an annular groove (12), the middle part of the fixed seat is provided with a through hole, the middle part of the bottom end of the sealing groove (7) is provided with a limiting groove (13), the top cover (41) is arranged in the sealing groove (7), and the bottom end of the top cover is provided with four;

pin shaft (10): the two groups of the fixing seats are respectively inserted into through holes in the middle of the two fixing seats (43), one end of each pin shaft (10) is welded with a limiting plate (14), the limiting plates (14) are positioned in limiting grooves (13), the top end of each limiting plate is provided with a slot (11) corresponding to the corresponding inserting plate (42), the slots (11) are matched with the inserting plates (42) in an inserting mode, the end of one pin shaft (10) is connected with a threaded cylinder (1), the end of the other pin shaft (10) is connected with a screw rod (2), and the screw rod (2) is in threaded connection with the threaded cylinder (1);

wherein: transition fit is carried out between top cap (41) and the inner wall of seal groove (7), and its height value equals with the degree of depth value of seal groove (7).

2. A loose-proof fastener as claimed in claim 1, characterized in that: the anti-skid device is characterized by further comprising anti-skid stripes (3), wherein the anti-skid stripes (3) are uniformly arranged at the end part, far away from the top cover (41), of the fixing seat (43).

3. A loose-proof fastener as claimed in claim 1, characterized in that: the rubber ring (6) is arranged in the annular groove (12), and the thickness value of the rubber ring (6) is larger than the depth value of the annular groove (12).

4. A loose-proof fastener as claimed in claim 1, characterized in that: still include fastener (5), fastener (5) include annular stripper plate (51), spring (52) and telescopic link (53), the bottom at annular groove (12) is fixed to the stiff end of telescopic link (53), and its flexible end is connected with annular stripper plate (51), and spring (52) have been cup jointed to its side, annular stripper plate (51) and annular groove (12) sliding connection.

5. A loose-proof fastener as claimed in claim 1, characterized in that: the clamping device is characterized by further comprising a clamping block (8) and a clamping groove (9), the clamping groove (9) is formed in the bottom end of the sealing groove (7), the clamping block (8) is installed at the bottom end of the top cover (41), and the clamping block is matched with the clamping groove (9) in a clamping mode.