CN211259318U

CN211259318U - Anti-loosening fastener

Info

Publication number: CN211259318U
Application number: CN201922314456.6U
Authority: CN
Inventors: 魏尧刚; 冀平; 张大鹏
Original assignee: Hebei Qierjie New Energy Technology Co ltd
Current assignee: Hebei Qierjie New Energy Technology Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-14
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a locking fastener, the bolt and the nut of constituteing including nut and screw rod, it is equipped with the extension to keep away from nut one end on the screw rod, and the extension periphery evenly is equipped with the dogtooth strip, and extension outside cover has locking sleeve mechanism, locking sleeve mechanism includes the sleeve in the extension outside, evenly sets up the concave tooth groove that agrees with mutually with the dogtooth strip on the sleeve inside wall, be close to nut one side on the sleeve and evenly be connected with the inserted block, the inserted block stretches into in the slot of evenly seting up on the nut, the slot includes the outer perpendicular hole that corresponds the inserted block orientation and evenly seting up on the nut to and set up the interior cross bore that is linked together with outer perpendicular hole in the nut. The utility model provides a locking fastener utilizes current fastener for preventing the screw rod length that the pine takes off the tip and reserve more when using, carries out the gomphosis through increasing the concave tooth groove in protruding rack and the sleeve and carries out locking, changes for a short time to current screw rod for the whole manufacturing is simple, and is with low costs, and is more practical.

Description

Anti-loosening fastener

Technical Field

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

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees.

The fastening piece plays a role in fixed connection, so the connection stability is very important, particularly on some noise environments and equipment which vibrates during working, the fastening piece is easy to loosen, and although the anti-loosening fastening piece in the existing market is various, the anti-loosening effect on the nut is limited by mostly depending on one end of the nut, so that the integral anti-loosening effect of the fastening piece is not ideal, and therefore the anti-loosening fastening piece is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking fastener to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the anti-loosening fastener comprises a bolt and a nut, wherein the bolt and the nut are composed of a nut and a screw, an extending portion is arranged at one end, far away from the nut, of the screw, convex racks are uniformly arranged on the periphery of the extending portion, and an anti-loosening sleeve mechanism is sleeved on the outer side of the extending portion.

As a further aspect of the present invention: the anti-loosening sleeve mechanism comprises a sleeve outside the extension portion, concave tooth grooves matched with the convex tooth bars are uniformly formed in the inner side wall of the sleeve, an inserting block is uniformly connected to one side, close to the nut, of the sleeve, and the inserting block extends into a slot uniformly formed in the nut.

As a further aspect of the present invention: the slot comprises outer vertical holes which are uniformly formed in the nut corresponding to the direction of the insertion block, and inner transverse holes which are communicated with the outer vertical holes are formed in the nut.

As a further aspect of the present invention: the connecting rod is arranged at one end, far away from the sleeve, of the insert block, the right end of the connecting rod penetrates through a through hole formed in the insert block and extends into a cavity formed in the insert block, a limiting block is connected to the end portion of the connecting rod in the cavity, a fixing block is connected to the left end of the connecting rod, and the fixing block penetrates through an outer vertical hole and then is fixed in an inner transverse hole in a rotating and transverse mode.

As a further aspect of the present invention: the volume of the outer vertical hole and the volume of the inner transverse hole are both slightly larger than the fixed block, and the volume of the outer vertical hole and the volume of the inner transverse hole are multiplied by the width of the fixed block after the width of the convex rack is added to the length and the height of the fixed block respectively.

Compared with the prior art, the utility model has the advantages of following several aspects:

the utility model discloses in, come simultaneously to carry out spacing connection with screw rod and nut through setting up the sleeve, when screw rod or arbitrary party of nut are rotatory not hard up, all drive another party synchronous revolution through the sleeve to avoided the fastener pine to take off, simultaneously through carrying out spacing fixed with nut and screw rod, compare with current nut one end setting locking mode, not only be applicable to the connection from threaded hole, be applicable to simultaneously and perforate the fastening, not only locking effect is better, and application range is wider simultaneously.

The utility model discloses in, insert earlier between sleeve and the nut through the fixed block and carry out spacing connection in outer perpendicular hole rotatory horizontal and interior cross bore again, fixed effect is better, prevents that the pine from taking off.

The utility model discloses in, utilize current fastener when using for preventing the screw rod length that the pine takes off the tip and reserve more, go on the gomphosis through the concave tooth groove that increases in protruding rack and the sleeve and carry out locking, it is little to change current screw rod for the whole manufacturing is simple, and is with low costs, more practical.

Drawings

Fig. 1 is a schematic view of a loose-proof fastener.

FIG. 2 is a side view of a sleeve in a loose fastener.

Figure 3 is a cross-sectional view of an extension of a loose fastener.

Fig. 4 is a front view of a nut in a loose-proof fastener.

FIG. 5 is a schematic diagram of a portion of an insert block of a loose proof fastener.

In the figure: 1. a nut; 2. a screw; 3. a nut; 4. a sleeve; 5. a rack gear; 6. an extension; 7. inserting a block; 8. a slot; 9. a concave gullet; 10. an outer vertical hole; 11. an inner transverse hole; 12. a cavity; 13. a connecting rod; 14. a fixed block; 15. a through hole; 16. and a limiting block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In a first embodiment, please refer to fig. 1 to 3, a locking fastener includes a bolt and a nut 3 formed by a nut 1 and a screw 2, an extension portion 6 is disposed at one end of the screw 2 far away from the nut 1, a protruding rack 5 is uniformly disposed on the periphery of the extension portion 6, a sleeve 4 is sleeved outside the extension portion 6, a concave tooth groove 9 matched with the protruding rack 5 is uniformly disposed on the inner side wall of the sleeve 4, an insertion block 7 is uniformly connected to one side of the sleeve 4 close to the nut 3, and the insertion block 7 extends into an insertion groove 8 uniformly disposed on the nut 3.

In the second embodiment, referring to fig. 1 to 5, a locking fastener includes a bolt and a nut 3 formed by a nut 1 and a screw 2, an extension portion 6 is disposed at one end of the screw 2 away from the nut 1, a rack 5 is uniformly disposed on the periphery of the extension portion 6, a sleeve 4 is sleeved outside the extension portion 6, a concave tooth groove 9 matched with the rack 5 is uniformly disposed on the inner side wall of the sleeve 4, an insert 7 is uniformly connected to one side of the sleeve 4 close to the nut 3, a connecting rod 13 is disposed at one end of the insert 7 away from the sleeve 4, the right end of the connecting rod 13 passes through a through hole 15 disposed on the insert 7 and extends into a cavity 12 disposed in the insert 7, a limiting block 16 is connected to the end of the connecting rod 13 in the cavity 12, a fixing block 14 is connected to the left end of the connecting rod 13, outer vertical holes 10 are uniformly disposed on the nut 3 in the direction corresponding to the insert 7, an inner transverse hole 11 communicated, the fixed block 14 firstly passes through the outer vertical hole 10 and then is rotationally and transversely arranged in the inner transverse hole 11 for fixing.

The utility model discloses a theory of operation is: the utility model provides a locking fastener, the structure is ingenious, and the layout is reasonable, when in use, the screw rod 2 passes through the hole for fastening, then the nut 3 is screwed on the screw rod 2, after the nut 3 and the nut 1 are tightly clung to the two ends of the object respectively and are firmly fixed, the fixed block 14 is firstly aligned with the outer vertical hole 10, then the sleeve 4 is sleeved on the extension part 6 of the screw rod 2, the convex rack 5 is matched and fixed with the concave tooth groove 9, then the fixed block 14 is firstly inserted from the outer vertical hole 10, then the rotary connecting rod 13 is rotated to drive the fixed block 14 to rotate, so that the fixed block is horizontally arranged in the inner horizontal hole 11, thereby the limiting and the fixing are carried out, when any one of the screw rod 2 or the nut 3 rotates and loosens, the other one is driven to synchronously rotate by the sleeve 4, thereby the fastener is prevented from loosening, meanwhile, the nut and the screw rod are limited and fixed, compared with the existing locking mode arranged, meanwhile, the anti-loosening device is suitable for perforation fastening, and has a better anti-loosening effect and a wider application range.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The anti-loosening fastener comprises a bolt and a nut (3) which are composed of a nut (1) and a screw (2), and is characterized in that an extending portion (6) is arranged at one end, far away from the nut (1), of the screw (2), convex racks (5) are uniformly arranged on the periphery of the extending portion (6), and an anti-loosening sleeve mechanism is sleeved on the outer side of the extending portion (6).

2. The anti-loose fastener as claimed in claim 1, wherein the anti-loose sleeve mechanism comprises a sleeve (4) outside the extension portion (6), concave tooth grooves (9) matched with the convex tooth bars (5) are uniformly formed in the inner side wall of the sleeve (4), one side, close to the nut (3), of the sleeve (4) is uniformly connected with an insert block (7), and the insert block (7) extends into a slot (8) uniformly formed in the nut (3).

3. Anti-loose fastener according to claim 2, characterized in that said slot (8) comprises external vertical holes (10) uniformly provided in the nut (3) in the direction corresponding to the insert (7), and internal transverse holes (11) provided in the nut (3) and communicating with the external vertical holes (10).

4. The anti-loose fastener is characterized in that a connecting rod (13) is arranged at one end, far away from the sleeve (4), of the inserting block (7), the right end of the connecting rod (13) penetrates through a through hole (15) formed in the inserting block (7) and extends into a cavity (12) formed in the inserting block (7), a limiting block (16) is connected to the end portion of the connecting rod (13) in the cavity (12), a fixing block (14) is connected to the left end position of the connecting rod (13), and the fixing block (14) penetrates through the outer vertical hole (10) and then is rotationally and transversely arranged in the inner transverse hole (11) to be fixed.

5. An anti-loose fastener according to claim 4, characterized in that the volume of the outer vertical hole (10) and the inner transverse hole (11) are both slightly larger than the fixed block (14), and the volume is obtained by adding the width of the convex rack (5) to the length and the height of the fixed block (14) respectively and then multiplying the width of the fixed block (14).