CN213064275U

CN213064275U - Anti-loosening engineering mechanical fastener

Info

Publication number: CN213064275U
Application number: CN202022119481.1U
Authority: CN
Inventors: 侯建良; 张建东; 徐奇军
Original assignee: Ningbo Ningli High Strength Fastener Co ltd
Current assignee: Ningbo Ningli High Strength Fastener Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-04-27
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses an anti-loosening engineering mechanical fastener, in particular to the technical field of fasteners, which comprises a nut and a screw, wherein the screw is fixedly arranged at the bottom of the nut, and the outer end of the screw is provided with an anti-loosening mechanism; the anti-loosening mechanism comprises a nut, a first inserting rod is arranged inside the nut, the first inserting rod is arranged on one side of the screw and extends into the screw, a first spring is arranged at one end of the first inserting rod, the first spring is arranged inside the nut, one end of the first spring is fixedly connected with the inside of the nut, a second inserting rod is arranged on one side of the first inserting rod, the second inserting rod is arranged inside the screw and extends out of one side of the screw, and one end of the second inserting rod is inserted into the nut. The utility model discloses an utilize first inserted bar and second inserted bar to be in the same place screw rod and nut are fixed to it is right to prevent external mechanical vibration the utility model discloses an influence to can prevent screw rod and nut to appear not hard up phenomenon effectively.

Description

Anti-loosening engineering mechanical fastener

Technical Field

The utility model relates to a fastener technical field, concretely relates to locking engineering machine tool fastener that moves.

Background

The fastener is also called a standard part in the market, is a mechanical element which can fix or bond two or more elements together in a mechanical mode, and is characterized by various varieties and specifications, different performance and purposes, extremely high standardization, serialization and universalization degrees, and the fastener is a mechanical basic part which is most widely applied, and has great demand.

In order to prevent the fastener from loosening, the nut and the screw rod are fixed together by the axis lock in the prior art, but the axis lock is easily driven to rotate by the vibration generated in the working process of the engineering machinery, so that the screw rod and the nut are not fixed together any more, the loosening phenomenon is easily caused, and the loosening prevention effect is poor.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a locking engineering machine tool fastener that moves is together fixed with screw rod and nut through utilizing first inserted bar and second inserted bar to prevent external mechanical vibration right the utility model discloses an influence to can prevent effectively that not hard up phenomenon from appearing in screw rod and nut, to solve among the prior art because mechanical vibrations drive the axle center lock and rotate between the screw rod that leads to and the nut not hard up problem.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a looseness-preventing engineering mechanical fastener comprises a nut and a screw, wherein the screw is fixedly arranged at the bottom of the nut, and the outer end of the screw is provided with a looseness-preventing mechanism;

the anti-loosening mechanism comprises a nut, the nut is arranged at the outer end of the screw rod and is in threaded connection with the screw rod, a first inserting rod is arranged inside the nut, the first inserting rod is arranged on one side of the screw rod and extends into the screw rod, a first spring is arranged at one end of the first inserting rod, the first spring is arranged inside the nut, one end of the first spring is fixedly connected with the first inserting rod, one end of the first spring is fixedly connected with the inside of the nut, a second inserting rod is arranged on one side of the first inserting rod, the second inserting rod is arranged inside the screw rod and extends out of one side of the screw rod, and one end of the second inserting rod is inserted into the nut.

Furthermore, a first cross rod is arranged on one side of the second inserting rod, a second cross rod is fixedly arranged at one end of the first cross rod, and the second cross rod is arranged inside the nut and extends out of one side of the nut.

Furthermore, a second spring is arranged at the outer end of the first cross rod and is arranged on one side of the second cross rod.

Furthermore, the outer end of the second cross rod is provided with a baffle which is fixedly connected with the second cross rod.

Further, a first groove is formed in the nut, and the first inserting rod and the first spring are arranged in the first groove.

Furthermore, a through hole is formed in the screw rod, the through hole is communicated with the first groove, the second inserting rod is arranged in the through hole, and one end of the first inserting rod is inserted into the through hole.

Furthermore, a second groove, a fifth groove, a third groove and a fourth groove are formed in the nut, the second groove is formed in one side of the through hole and communicated with the through hole, and the second groove, the fifth groove, the third groove and the fourth groove are communicated with each other.

Furthermore, a pull rod is fixedly arranged at one end of the first inserting rod, and the pull rod is arranged inside the nut and penetrates through the nut to extend out of one side of the nut.

The embodiment of the utility model provides a have following advantage:

the utility model discloses an earlier with screw rod and nut together through threaded connection, peg graft first inserted bar and second inserted bar between screw rod and nut again, because the position of first inserted bar and second inserted bar has received the restriction of first horizontal pole and second horizontal pole, so external mechanical shock can not drive first horizontal pole and second horizontal pole and remove for screw rod and nut can inseparable fixed together, compare with prior art, effectively avoided external mechanical shock right the utility model discloses the influence of fastening nature can prevent effectively that the not hard up condition from appearing between screw rod and the nut, and then can effectively improve the utility model discloses an anti-looseness performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

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

fig. 2 is a cross-sectional view provided by the present invention;

fig. 3 is a schematic structural view of the through hole, the screw rod and the nut provided by the present invention;

fig. 4 is an enlarged view of a in fig. 2 according to the present invention;

fig. 5 is a side view provided by the present invention.

In the figure: the screw rod comprises a nut 1, a screw rod 2, a nut 3, a first inserted rod 4, a first spring 5, a second inserted rod 6, a first cross rod 7, a second spring 8, a second cross rod 9, a baffle 10, a first groove 11, a through hole 12, a second groove 13, a third groove 14, a fourth groove 15, a fifth groove 16 and a pull rod 17.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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 the attached drawings 1-5 in the specification, the anti-loosening engineering mechanical fastener comprises a nut 1 and a screw rod 2, wherein the screw rod 2 is fixedly arranged at the bottom of the nut 1, and an anti-loosening mechanism is arranged at the outer end of the screw rod 2;

the anti-loosening mechanism comprises a nut 3, the nut 3 is arranged at the outer end of a screw rod 2, the nut 3 is in threaded connection with the screw rod 2, a first insertion rod 4 is arranged inside the nut 3, the first insertion rod 4 is arranged on one side of the screw rod 2 and extends into the screw rod 2, a first spring 5 is arranged at one end of the first insertion rod 4, the first spring 5 is arranged inside the nut 3, one end of the first spring 5 is fixedly connected with the first insertion rod 4, one end of the first spring 5 is fixedly connected with the inside of the nut 3, a second insertion rod 6 is arranged on one side of the first insertion rod 4, the second insertion rod 6 is arranged inside the screw rod 2 and extends out of one side of the screw rod 2, and one end of the second insertion rod 6 is inserted into the nut 3.

Further, second inserted bar 6 one side is equipped with first horizontal pole 7, the fixed second horizontal pole 9 that is equipped with of first horizontal pole 7 one end, second horizontal pole 9 is established inside nut 3 and is extended nut 3 one side, is convenient for promote second inserted bar 6 to can insert second inserted bar 6 inside through-hole 12 completely.

Further, the outer end of the first cross rod 7 is provided with a second spring 8, the second spring 8 is arranged on one side of the second cross rod 9, and the first cross rod 7 after moving is convenient to rebound to the original position.

Further, the outer end of the second cross rod 9 is provided with a baffle 10, the baffle 10 is fixedly connected with the second cross rod 9, and the second cross rod 9 is limited inside the nut 3, so that the position of the first cross rod 7 inside the nut 3 can be limited, and the first cross rod 7 can be in contact with the second inserted rod 6.

Further, first recess 11 has been seted up to nut 3 is inside, first inserted bar 4 and first spring 5 all establish inside first recess 11, are convenient for first inserted bar 4 and move in nut 3 is inside.

Furthermore, a through hole 12 is formed in the screw rod 2, the through hole 12 is communicated with the first groove 11, the second insertion rod 6 is arranged in the through hole 12, one end of the first insertion rod 4 is inserted into the through hole 12, the screw rod 2 and the nut 3 are fixed together by the second insertion rod 6 and the first insertion rod 4, and the first insertion rod 4 and the second insertion rod 6 can move between the screw rod 2 and the nut 3 conveniently.

Further, a second groove 13, a fifth groove 16, a third groove 14 and a fourth groove 15 are formed in the nut 3, the second groove 13 is formed in one side of the through hole 12, the second groove 13 is communicated with the through hole 12, the second groove 13, the fifth groove 16, the third groove 14 and the fourth groove 15 are communicated, one end of the second inserting rod 6 can be conveniently moved into the nut 3, the first cross rod 7 and the second cross rod 9 can be conveniently moved in the nut 3, and therefore the second inserting rod 6 can be pushed by the first cross rod 7.

Furthermore, a pull rod 17 is fixedly arranged at one end of the first insertion rod 4, the pull rod 17 is arranged inside the nut 3 and penetrates through the nut 3 to extend out of one side of the nut 3, and therefore the first insertion rod 4 can be conveniently moved into the first groove 11, and the nut 3 can be conveniently rotated.

The implementation scenario is specifically as follows: when the utility model is used, the second inserted link 6 is inserted into the through hole 12, then the nut 3 is sleeved on the outer end of the screw rod 2, then the nut 3 can be rotated to shorten the distance between the nut 3 and the nut 1, when the first inserted link 4 is in contact with the screw rod 2, the pull rod 17 can be pulled to one side, and the pull rod 17 drives the first inserted link 4 to move to one side, so that the first inserted link 4 can compress the first spring 5 to the inside of the nut 3, the first inserted link 4 can be moved to the inside of the nut 3 and then the nut 3 can be rotated continuously, when the nut is rotated to a proper position, and the two ends of the through hole 12 can be respectively communicated with the first groove 11 and the second groove 13, the nut 3 can be stopped rotating continuously, then the hand pulling the pull rod 17 can be loosened, so that the first spring 5 of the compressor can extend to one side under the action of self elasticity, so that the first inserting rod 4 can be pushed to one side by the first spring 5, and the second inserting rod 6 is inserted into the through hole 12, so that the first inserting rod 4 can push the second inserting rod 6 to move to one side in the moving process, so that one end of the first inserting rod 4 can be inserted into the through hole 12, and one end of the second inserting rod 6 can be inserted into the nut 3, so that the nut 3 and the screw rod 2 can be fixed together by the first inserting rod 4 and the second inserting rod 6, so that the screw rod 2 and the nut 3 can still be fixed together even under the condition that the sliding wire occurs between the nut 3 and the screw rod 2, and the positions of the first inserting rod 4 and the second inserting rod 6 can be limited between the screw rod 2 and the nut 3 because the two ends of the first inserting rod 4 and the second inserting rod 6 are respectively limited by the first cross rod 7 and the first spring 5, so that the external mechanical vibration can not drive the first inserting rod 4 and the second inserting rod 6 to move, thereby can prevent that mechanical shock is right the utility model discloses an influence, in order to improve the utility model discloses an anti-looseness performance, and when needs are unpacked screw rod 2 and nut 3 apart, only need press second horizontal pole 9 to one side, utilize second horizontal pole 9 to drive first horizontal pole 7 to one side removal, thereby can utilize first horizontal pole 7 to promote second inserted bar 6 to one side, and utilize second inserted bar 6 to promote first inserted bar 4 to one side, thereby can insert second inserted bar 6 inside through-hole 12 completely, insert first inserted bar 4 inside first recess 11 completely, then just can rotate screw rod 2 or nut 3, just can unpack screw rod 2 and nut 3 apart, this embodiment has specifically solved among the prior art because mechanical shock drives the problem that becomes flexible between screw rod and the nut that the axle center lock rotation leads to.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides an anti-loosening engineering mechanical fastener, includes nut (1) and screw rod (2), screw rod (2) are fixed to be established in nut (1) bottom, its characterized in that: the outer end of the screw rod (2) is provided with an anti-loosening mechanism;

the anti-loosening mechanism comprises a nut (3), the nut (3) is arranged at the outer end of the screw rod (2), the nut (3) is connected with the screw rod (2) through threads, a first inserted bar (4) is arranged inside the nut (3), the first inserted bar (4) is arranged at one side of the screw rod (2) and extends into the screw rod (2), one end of the first inserted bar (4) is provided with a first spring (5), the first spring (5) is arranged inside the nut (3), one end of the first spring (5) is fixedly connected with the first inserted bar (4), one end of the first spring (5) is fixedly connected with the inside of the nut (3), a second inserted bar (6) is arranged on one side of the first inserted bar (4), the second inserted bar (6) is arranged inside the screw rod (2) and extends out of one side of the screw rod (2), and one end of the second inserted bar (6) is inserted inside the nut (3).

2. A locking fastener for construction machinery according to claim 1, wherein: a first cross rod (7) is arranged on one side of the second inserting rod (6), a second cross rod (9) is fixedly arranged at one end of the first cross rod (7), and the second cross rod (9) is arranged inside the nut (3) and extends out of one side of the nut (3).

3. A locking fastener for construction machinery according to claim 2, wherein: the outer end of the first cross rod (7) is provided with a second spring (8), and the second spring (8) is arranged on one side of the second cross rod (9).

4. A locking fastener for construction machinery according to claim 2, wherein: the outer end of the second cross rod (9) is provided with a baffle (10), and the baffle (10) is fixedly connected with the second cross rod (9).

5. A locking fastener for construction machinery according to claim 1, wherein: first recess (11) have been seted up to nut (3) inside, first inserted bar (4) and first spring (5) are all established inside first recess (11).

6. A locking fastener for construction machinery according to claim 5, wherein: a through hole (12) is formed in the screw rod (2), the through hole (12) is communicated with the first groove (11), the second inserting rod (6) is arranged in the through hole (12), and one end of the first inserting rod (4) is inserted into the through hole (12).

7. A locking fastener for construction machinery according to claim 6, wherein: a second groove (13), a fifth groove (16), a third groove (14) and a fourth groove (15) are formed in the nut (3), the second groove (13) is formed in one side of the through hole (12), the second groove (13) is communicated with the through hole (12), and the second groove (13), the fifth groove (16), the third groove (14) and the fourth groove (15) are communicated.

8. A locking fastener for construction machinery according to claim 1, wherein: a pull rod (17) is fixedly arranged at one end of the first insertion rod (4), and the pull rod (17) is arranged inside the nut (3) and penetrates through the nut (3) to extend out of one side of the nut (3).