CN214945638U

CN214945638U - Novel anti-loosening fastener

Info

Publication number: CN214945638U
Application number: CN202120201117.1U
Authority: CN
Inventors: 刘洪金
Original assignee: Suzhou Tuoxun Electromechanical Co ltd
Current assignee: Suzhou Tuoxun Electromechanical Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-30
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a novel locking fastener, which comprises a bolt, screw hole spare and locking cap, the fixed orifices has been seted up to the up end of screw hole spare, the bottom of fixed orifices is provided with the fixed slot, the locking cap is through passing fixed orifices and screw hole spare sliding connection, the inside internal thread that is provided with of screw hole spare, be provided with the external screw thread on the bolt, the bolt passes through internal thread and external screw-thread fit threaded connection with the screw hole spare, the upper end of locking cap is provided with first fixed pin, be provided with first spring on the first fixed pin, be provided with the baffle on the first fixed pin, first spring bonding is at the side end face of baffle, first fixed pin passes through first spring elastic connection with the locking cap, the bottom of locking cap is provided with the second fixed pin, the side end face of second fixed pin is provided with the second spring, the second fixed pin passes through second spring elastic connection with the locking cap. The utility model discloses rational in infrastructure, the cost is lower, is applicable to most screw structures, has stopped the problem that the bolt pine takes off structurally.

Description

Novel anti-loosening fastener

Technical Field

The utility model belongs to the technical field of connect the fastening, specifically be a novel locking fastener.

Background

The existing nut anti-loosening technology has a plurality of technologies, but the anti-loosening of large nuts used in places with high strength, large load and repeated shock impact is still a key technical problem.

A novel anti-loosening fastener is disclosed in an authorization notice number CN102654156B and comprises a screw rod and a nut, when the screw rod and the nut are screwed together, the bottom end of the nut is fixedly connected with a gland through a locking screw, and the head of the gland is screwed into the screw rod through threads.

The novel anti-loose fastener disclosed above needs to be provided with the adjusting ring and the adjusting base plate when in use, and has a limited application range.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel locking fastener to solve the complicated limited problem of range of application of anticreep fastener structure among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel anti-loosening fastener, includes bolt, screw hole spare and locking cap, the fixed orifices has been seted up to the up end of screw hole spare, the bottom of fixed orifices is provided with the fixed slot, the locking cap is through passing fixed orifices and screw hole spare sliding connection, the inside internal thread that is provided with of screw hole spare, be provided with the external screw thread on the bolt, bolt and screw hole spare pass through internal thread and external screw thread fit threaded connection, the upper end of locking cap is provided with first fixed pin, is provided with first spring on the first fixed pin, and first fixed pin passes through first spring elastic connection with the locking cap, the bottom of locking cap is provided with the second fixed pin, the side end face of second fixed pin is provided with the second spring, and the second fixed pin passes through second spring elastic connection with the locking cap.

Preferably, the fixed orifices is circular through-hole, the fixed slot is annular notch, the overlook internal diameter of fixed orifices equals with the overlook external diameter of locking nut, and the locking nut inserts in the fixed orifices, inserts in the fixed slot through the second fixed pin and fixes locking nut and screw hole spare.

Preferably, first fixed pin is L type stainless steel piece, be provided with the baffle on the first fixed pin, first spring bonding is in the side end face of baffle, the side end face upper end of locking cap is provided with first spout, and first fixed pin passes first spout cooperation first spring and locking cap elastic connection, and first spring extrusion baffle makes inside the bolt inserts the locking cap, and the bolt blocks the up end of bolt to avoid the bolt not hard up upwards to pop out.

Preferably, the bottom of locking cap is provided with the second spout, be provided with the second spring in the second spout, the second fixed pin passes through second spring and second spout sliding connection, and the second spout looks sideways at the level and looks sideways at highly equally with the fixed slot, and when the locking cap inserted the fixed orifices bottom, the second fixed pin was gone into the fixed slot by the bullet under the reset action of second spring in, second fixed pin and fixed slot interlocking to fix the locking cap in the fixed orifices.

Preferably, the side end face and the upper end face of the first fixing pin are of a fillet connection structure, when the bolt is screwed into the threaded hole piece, the lower end face of the bolt extrudes the upper end of the first fixing pin, so that the first fixing pin is extruded towards two sides, the first fixing pin extrudes the first spring, and when the bolt is completely inserted into the threaded hole piece, the first fixing pin rebounds under the resetting effect of the first spring to clamp the upper end face of the bolt and fix the bolt.

Preferably, the side end face and the lower end face of the second fixing pin are of a fillet connection structure, when the fixing cap is inserted into the fixing hole, the side end face of the fixing hole extrudes the lower end face of the second fixing pin, the second fixing pin extrudes the second spring to be contained in the second sliding groove, when the fixing cap is completely inserted into the bottom of the fixing hole, the second fixing pin rebounds under the reset action of the second spring to be inserted into the fixing groove, and the fixing cap is fixed with the threaded hole piece.

Preferably, the side of first fixed pin sets up the pull rod, the front view height of pull rod is higher than the front view height of locking cap, and when the bolt was screwed out to needs, outwards spur the pull rod, in taking in first spout with first fixed pin, then unscrew the bolt, conveniently take off the bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses rational in infrastructure, the cost is lower, is applicable to most screw structures, has stopped the problem that the bolt pine takes off structurally.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged view of a point a in fig. 1 according to the present invention;

fig. 3 is an enlarged view of the position B in fig. 1.

In the figure: the bolt comprises a 1 screw hole piece, 11 fixing holes, 111 fixing grooves, 2 fixing caps, 21 first fixing pins, 211 baffle plates, 212 pull rods, 22 second fixing pins, 23 second sliding grooves, 24 second springs, 25 first sliding grooves, 26 first springs and 3 bolts.

Detailed Description

Please refer to fig. 1, a novel anti-loosening fastener, including a bolt 3, a threaded hole piece 1 and a fixing cap 2, a fixing hole 11 has been opened on an upper end surface of the threaded hole piece 1, a fixing groove 111 has been opened on a bottom of the fixing hole 11, the fixing cap 2 is slidably connected with the threaded hole piece 1 by passing through the fixing hole 11, an internal thread has been opened inside the threaded hole piece 1, an external thread has been opened on the bolt 3, the bolt 3 is connected with the threaded hole piece 1 by the internal thread and the external thread matching threaded connection, an upper end of the fixing cap 2 is slidably connected with a first fixing pin 21, a first spring 26 is sleeved on the first fixing pin 21, the first fixing pin 21 is elastically connected with the fixing cap 2 by a first spring 26, a bottom of the fixing cap 2 is slidably connected with a second fixing pin 22, a second spring 24 is welded on a side end surface of the second fixing pin 22, and the second fixing pin 22 is elastically connected with the fixing cap 2 by a second spring 24.

Referring to fig. 1, the fixing hole 11 is a circular through hole, the fixing groove 111 is an annular notch, the overlooking inner diameter of the fixing hole 11 is equal to the overlooking outer diameter of the fixing cap 2, the fixing cap 2 is inserted into the fixing hole 11, and the second fixing pin 22 is inserted into the fixing groove 111 to fix the fixing cap 2 and the screw member 1

Referring to fig. 2, the side end surface and the lower end surface of the second fixing pin 22 are in a fillet connection structure, when the fixing cap 2 is inserted into the fixing hole 11, the side end surface of the fixing hole 11 presses the lower end surface of the second fixing pin 22, so that the second fixing pin 22 presses the second spring 24 to be received in the second sliding groove 23, when the fixing cap 2 is completely inserted into the bottom of the fixing hole 11, the second fixing pin 22 rebounds and is inserted into the fixing groove 111 under the restoring action of the second spring 24, so as to fix the fixing cap 2 and the screw member 1, the bottom of the fixing cap 2 is provided with the second sliding groove 23, the second sliding groove 23 is welded with the second spring 24, the second fixing pin 22 is slidably connected with the second sliding groove 23 through the second spring 24, the second sliding groove 23 is horizontal in side view and equal in side view height to the fixing groove 111, when the fixing cap 2 is inserted into the bottom of the fixing hole 11, the second fixing pin 22 is popped into the fixing groove 111 under the restoring action of the second spring 24, the second fixing pin 22 is interlocked with the fixing groove 111, thereby fixing the fixing cap 2 in the fixing hole 11.

Referring to fig. 3, the side end surface and the upper end surface of the first fixing pin 21 are in a fillet connection structure, when the bolt 3 is screwed into the threaded hole member 1, the lower end surface of the bolt 3 presses the upper end of the first fixing pin 21, so as to press the first fixing pin 21 to both sides, the first fixing pin 21 presses the first spring 26, when the bolt 3 is completely inserted into the threaded hole member 1, the first fixing pin 21 rebounds under the restoring action of the first spring 26 to clamp the upper end surface of the bolt 3, and fixes the bolt 3, the side end of the first fixing pin 21 is welded with the pull rod 212, the elevational height of the pull rod 212 is higher than the elevational height of the fixing cap 2, when the bolt 3 needs to be screwed out, the pull rod 212 is pulled outwards, the first fixing pin 21 is taken into the first sliding groove 25, and then the bolt 3 is screwed out, so as to conveniently take off the bolt 3.

The working principle of the scheme is as follows: the utility model discloses when using, fixed orifices 11 and fixed slot 111 are seted up to the upper end that will treat fixed screw, then insert fixed cap 2 in fixed orifices 11, make second fixed pin 22 and fixed slot 111 cooperation interlocking, accomplish the fixed of fixed cap 2 and screw, then insert bolt 3 by overlooking the center of fixed cap 2, rotary bolt 3, first fixed pin 21 pops out by first spout 25 under the reset action of first spring 26 after the bolt 3 of screwing, the card is fixed bolt 3 with the up end of bolt 3, avoid its slippage, take out bolt 3 when needs and make, outside pulling pull rod 212, in first fixed pin 21 income first spout 25, then unscrew bolt 3.

Claims

1. The utility model provides a novel locking fastener, includes bolt (3), screw hole spare (1) and locking cap (2), its characterized in that: the upper end surface of the screw hole piece (1) is provided with a fixing hole (11), the bottom of the fixing hole (11) is provided with a fixing groove (111), the fixing cap (2) is connected with the screw hole piece (1) in a sliding way by penetrating through the fixing hole (11), the inner part of the screw hole piece (1) is provided with an internal thread, the bolt (3) is provided with an external thread, the bolt (3) and the screw hole piece (1) are in matched threaded connection with the external thread through the internal thread, the upper end of the fixed cap (2) is provided with a first fixed pin (21), the first fixed pin (21) is provided with a first spring (26), the first fixed pin (21) is elastically connected with the fixed cap (2) through the first spring (26), the bottom of locking cap (2) is provided with second fixed pin (22), the side end face of second fixed pin (22) is provided with second spring (24), second fixed pin (22) and locking cap (2) pass through second spring (24) elastic connection.

2. The novel anti-loose fastener as claimed in claim 1, characterized in that: the fixing hole (11) is a circular through hole, the fixing groove (111) is an annular notch, and the overlooking inner diameter of the fixing hole (11) is equal to the overlooking outer diameter of the fixing cap (2).

3. The novel anti-loose fastener as claimed in claim 1, characterized in that: first fixed pin (21) are L type stainless steel piece, be provided with baffle (211) on first fixed pin (21), first spring (26) welding is at the side end face of baffle (211), the side end face upper end of locking cap (2) is provided with first spout (25), and first fixed pin (21) pass first spout (25) cooperation first spring (26) and locking cap (2) elastic connection.

4. The novel anti-loose fastener as claimed in claim 1, characterized in that: the bottom of locking cap (2) is provided with second spout (23), be provided with second spring (24) in second spout (23), second fixed pin (22) are through second spring (24) and second spout (23) sliding connection, and second spout (23) look sideways at the level and look sideways at the height and equal with fixed slot (111).

5. The novel anti-loose fastener as claimed in claim 1, characterized in that: the side end face and the upper end face of the first fixing pin (21) are of a round angle connecting structure.

6. The novel anti-loose fastener as claimed in claim 1, characterized in that: the side end face and the lower end face of the second fixing pin (22) are of a round angle connecting structure.

7. The novel anti-loose fastener as claimed in claim 1, characterized in that: the side end of the first fixing pin (21) is provided with a pull rod (212), and the front view height of the pull rod (212) is higher than that of the fixing cap (2).