CN211648745U

CN211648745U - Double-nut bolt connection anti-loosening device

Info

Publication number: CN211648745U
Application number: CN201921838466.3U
Authority: CN
Inventors: 孙晋芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-10-09
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a two nut bolted connection locking device, including the hexagonal piece, the outer wall processing of hexagonal piece has the spline, the outer wall threaded connection of round bar has first nut and second nut, the left end rigid coupling of second nut has the lantern ring, the inner wall of the lantern ring and the outer wall clearance fit of round bar, the left end of first nut is equipped with the chucking subassembly, the outer wall of second nut is equipped with supports tight subassembly. This two nut bolted connection locking device, through the round bar, first nut, the effect of chucking subassembly and the lantern ring, make when first nut is fixed twist move the second nut can support tightly the bottom and the screw thread of four cardboard, and then prevent that first nut is not hard up, cooperation through second nut and chucking subassembly, make to twist and move the ring and can be with catch bar and screw thread chucking, and then make the inner wall of second nut and threaded friction increase, and then prevent that this two nut bolts is unexpected not hard up when using, and then through the firm degree of dual spacing when promoting its connection.

Description

Double-nut bolt connection anti-loosening device

Technical Field

The utility model relates to a two nut bolted connection locking technical field specifically is a two nut bolted connection locking device.

Background

Two nut bolts are mechanical parts, the cylindrical threaded fastener of two nuts of adapted, a kind of fastener of constituteing by head and screw rod (the cylinder that has the external screw thread) two parts, need with two nut cooperations, be used for two parts that have the through-hole of fastening connection, two nut bolted connection locking device among the prior art, can't prevent that first nut is not hard up, and can't increase the inner wall of second nut and the friction of screw thread, and then make this two nut bolts unexpected not hard up easily when using, and then firm degree when leading to reducing its connection, reduce the security, and then inconvenient people use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two nut bolted connection locking device to solve and to provide two nut bolted connection locking device in the technique among the above-mentioned background art, can't prevent that first nut is not hard up, and can't increase the inner wall of second nut and the friction of screw thread, and then make this two nut bolt unexpected not hard up easily when using, and then lead to the firm degree when reducing its connection, reduce the security, and then the problem that inconvenient people used.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two nut bolted connection locking device, includes the hexagonal piece, the outer wall processing of hexagonal piece has the spline, the left end processing of hexagonal piece has the hexagonal hole, the right-hand member rigid coupling of hexagonal piece has the round bar, the outer wall processing of round bar has the screw thread, the right-hand member rigid coupling of round bar has the lug, the outer wall threaded connection of round bar has first nut and second nut, the left end rigid coupling of second nut has the lantern ring, the inner wall of the lantern ring and the outer wall clearance fit of round bar, the left end of first nut is equipped with the chucking subassembly, the outer wall of second nut is equipped with supports tight subassembly.

Preferably, the projection is in a truncated cone shape.

Preferably, the clamping assembly comprises a support, a first pin shaft, a clamping plate and a torsion spring, the left ends of the four supports are fixedly connected with the left end of the first nut, the right end of the support is rotatably connected with the clamping plate through the first pin shaft, the torsion spring is sleeved on the outer wall of the first pin shaft, and the left end and the right end of the torsion spring are respectively clamped with the support and the clamping plate.

Preferably, four brackets are distributed at 90 degrees between every two brackets relative to the first nut.

Preferably, the bottom of the clamping plate is provided with a rib.

Preferably, the abutting assembly comprises a groove, a circular ring, a through groove, a second pin shaft, a clamping rod and a spring, the outer wall of the groove is processed on the outer wall of the second nut, the inner end of the left side of the inner wall of the groove is connected with the circular ring in a threaded manner, the inner end of the inner wall of the groove is processed with the through groove, the inner wall of the through groove is rotatably connected with the clamping rod through the second pin shaft, the spring is fixedly connected to the right end of the inner wall of the groove, and the left end of the spring is abutted against the upper portion of the right end of.

Compared with the prior art, the beneficial effects of the utility model are that: this two nut bolted connection locking device, through the round bar, first nut, the effect of chucking subassembly and the lantern ring, make when first nut is fixed twist move the second nut can support tightly the bottom and the screw thread of four cardboard, and then prevent that first nut is not hard up, cooperation through second nut and chucking subassembly, make and twist and move the ring and can be with catch bar and screw thread chucking, and then make the inner wall of second nut and threaded friction increase, and then prevent that this two nut bolts is unexpected not hard up when using, and then through the firm degree of dual spacing when promoting its connection, promote the security, and then make things convenient for people to use.

Drawings

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

FIG. 2 is a schematic view of the connection relationship between the first nut, the bracket and the clamping plate in FIG. 1;

FIG. 3 is a schematic view of the connection of the second nut, the collar and the ring of FIG. 1;

fig. 4 is a schematic view of the connection relationship among the grooves, the clamping rods and the through grooves in fig. 3.

In the figure: 1. hexagonal piece, 2, spline, 3, hexagonal hole, 4, round bar, 5, screw thread, 6, lug, 7, chucking subassembly, 701, support, 702, first round pin axle, 703, cardboard, 704, torsion spring, 8, support tight subassembly, 801, recess, 802, ring, 803, logical groove, 804, second round pin axle, 805, kelly, 806, spring, 9, first nut, 10, second nut, 11, the lantern ring.

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. 1-4, the present invention provides a technical solution: the utility model provides a two nut bolted connection locking device, including hexagonal piece 1, the outer wall processing of hexagonal piece 1 has spline 2, spline 2 is used for increasing the friction of 1 outer wall of hexagonal piece, the left end processing of hexagonal piece 1 has hexagonal hole 3, hexagonal hole 3 is convenient for rotate hexagonal piece 1, the right-hand member rigid coupling of hexagonal piece 1 has round bar 4, the outer wall processing of round bar 4 has screw thread 5, the right-hand member rigid coupling of round bar 4 has lug 6, lug 6 is the round platform shape, lug 6 is convenient for round bar 4 screw in treats the connecting elements, the outer wall threaded connection of round bar 4 has first nut 9 and second nut 10, the left end rigid coupling of second nut 10 has lantern ring 11, the inner wall of lantern ring 11 is the toper, the inner wall of lantern ring 11 and the outer wall clearance fit of round bar 4, the left end of first nut 9 is equipped with chucking subassembly 7, the outer wall of second nut 10 is equipped with and supports tight subassembly 8.

The clamping assembly 7 comprises a support 701, a first pin shaft 702, a clamping plate 703 and a torsion spring 704, the left ends of the four supports 701 are fixedly connected with the left end of a first nut 9, the four supports 701 are distributed at 90 degrees between every two first nuts 9, so that the clamping plate 703 is more uniformly contacted with the outer wall of a round rod 4 when being screwed into a lantern ring 11, the right end of the support 701 is rotatably connected with the clamping plate 703 through the first pin shaft 702, the first pin shaft 702 enables the clamping plate 703 to rotate when stressed, a convex rib is machined at the bottom of the clamping plate 703 and used for increasing friction at the bottom of the clamping plate 703, the torsion spring 704 is sleeved on the outer wall of the first pin shaft 702, the left end and the right end of the torsion spring 704 are respectively clamped with the support 701 and the clamping plate, the torsion spring 704 provides limiting force for the clamping plate 703, and the torsion spring is always kept.

The abutting assembly 8 comprises a groove 801, a ring 802, a through groove 803, a second pin shaft 804, a clamping rod 805 and a spring 806, the outer wall of the groove 801 is processed on the outer wall of the second nut 10, the inner end of the left side of the inner wall of the groove 801 is in threaded connection with the ring 802, the outer wall of the ring 802 is processed with grinding lines, the inner end of the inner wall of the groove 801 is processed with the through groove 803, the number of the through grooves 803 is six, the through grooves are radially and uniformly distributed around the groove 801, the inner wall of the through groove 803 is rotatably connected with the clamping rod 805 through the second pin shaft 804, the clamping rod 805 can rotate when the second pin shaft 804 bears the force, the right end of the inner wall of the groove 801 is fixedly connected with the spring 806, the spring 806 gives the clamping rod 805 a force for rotating leftward.

In this embodiment, when the double-nut bolt is used to connect the anti-loosening device, the to-be-connected member is firstly sleeved on the outer wall of the round bar 4, the first nut 9 and the second nut 10 are connected by the screw threads of the first nut 9 and the second nut 10, the first nut 9 and the second nut 10 are conveniently screwed into the round bar 4 by the action of the protrusion 6, the first nut 9 is firstly contacted with the to-be-connected member, the second nut 10 is rotated to make the inner wall of the collar 11 contacted with the outer wall of the snap-gauge 703, the snap-gauge 703 is rotated downwards by overcoming the elastic force of the torsion spring 704 by the inner wall of the collar 11, the inner wall of the snap-gauge 703 is contacted with the screw thread 5 to achieve the anti-loosening effect, the inner wall of the ring 802 is connected by the screw threads of the groove 801, the ring 802 is rotated to move rightwards, the snap-gauge 805 overcomes the elastic force of the spring 806 to rotate clockwise, and the bottom wall of, and then make second nut 10 rotate the frictional force increase, further play locking effect not hard up, make things convenient for people to use.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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. The utility model provides a two nut bolted connection locking device, includes hexagonal piece (1), its characterized in that: the outer wall processing of hexagonal piece (1) has spline (2), the left end processing of hexagonal piece (1) has hexagonal hole (3), the right-hand member rigid coupling of hexagonal piece (1) has round bar (4), the outer wall processing of round bar (4) has screw thread (5), the right-hand member rigid coupling of round bar (4) has lug (6), the outer wall threaded connection of round bar (4) has first nut (9) and second nut (10), the left end rigid coupling of second nut (10) has lantern ring (11), the inner wall of lantern ring (11) and the outer wall clearance fit of round bar (4), the left end of first nut (9) is equipped with chucking subassembly (7), the outer wall of second nut (10) is equipped with and supports tight subassembly (8).

2. A double nut bolt connection anti-loosening device according to claim 1, wherein: the convex block (6) is in a circular truncated cone shape.

3. A double nut bolt connection anti-loosening device according to claim 1, wherein: chucking subassembly (7) are including support (701), first round pin axle (702), cardboard (703) and torsion spring (704), four the left end of support (701) all is fixed with the left end of first nut (9) and links to each other, the right-hand member of support (701) rotates through first round pin axle (702) and is connected with cardboard (703), torsion spring (704) have been cup jointed to the outer wall of first round pin axle (702), torsion spring (704) about both ends respectively with support (701) and cardboard (703) looks joint.

4. A double nut bolt connection anti-loosening device according to claim 3, wherein: the four brackets (701) are distributed at 90 degrees with respect to the first nuts (9).

5. A double nut bolt connection anti-loosening device according to claim 3, wherein: the bottom of the clamping plate (703) is provided with a convex rib.

6. A double nut bolt connection anti-loosening device according to claim 1, wherein: support tight subassembly (8) and include recess (801), ring (802), logical groove (803), second round pin axle (804), kelly (805) and spring (806), the outer wall of recess (801) is processed in the outer wall of second nut (10), the inner threaded connection in the inner wall left side of recess (801) has ring (802), the inner end processing of the inner wall of recess (801) has logical groove (803), the inner wall that leads to groove (803) rotates through second round pin axle (804) and is connected with kelly (805), the inner wall right-hand member rigid coupling of recess (801) has spring (806), the left end of spring (806) offsets tightly with the right-hand member top of kelly (805).