CN215171442U - Combined anti-loose gasket - Google Patents

Abstract

The utility model relates to a combined anti-loose gasket, which consists of an anti-loose gasket I and an anti-loose gasket II, wherein the anti-loose gasket I and the anti-loose gasket II are respectively positioned on the upper connecting surface and the lower connecting surface of a connecting piece, a screw rod sequentially passes through the anti-loose gasket I, the connecting piece and the anti-loose gasket II and is screwed and fixed through a nut, the anti-loose gasket I is matched with the head part of the screw rod, the middle part of the anti-loose gasket is provided with a plurality of vertical plate bulges close to the head part of the screw rod, and the anti-loose gasket II comprises a plurality of annular structures and a connecting part connected with the annular structures; the middle parts of the annular structures are respectively matched with corresponding nuts, and a plurality of gaps which are not communicated with the inner ring are formed in the outer circumference side of the annular structures; the bottom of the annular structure is provided with a plurality of fan-shaped surfaces. The combined anti-loosening gasket of the utility model can prevent the bolt from loosening caused by the rotation of the head part of the screw rod, and reduce the pressure of the pretightening force of the bolt on the contact surface; the whole structure can be conveniently disassembled and assembled by using a universal tool, and the anti-loosening gasket I can be repeatedly used for a long time.

Description

Combined anti-loose gasket

Technical Field

The utility model relates to a gasket, concretely relates to combination locking gasket.

Background

The threaded connection is the most common connection mode on an automobile, and according to statistics, the average using amount of bolts of a common passenger car exceeds 4000; heavy commercial vehicles, the average use of bolts exceeds 7000. The reliability problem of various machines (including vehicles) mostly results from the connection of threaded fasteners, and bolts of some important parts are loosened and even fall off, so that the vehicles are damaged and people are killed. The reason for the bolt loosening is mainly the rotation loosening.

The prior art discloses a check washer for preventing a plurality of densely-distributed bolts from continuously loosening, which has good check effect and simple result, can be conveniently assembled and disassembled by a common tool, the check washer comprises a first washer and a second washer, the first washer and the second washer are respectively positioned on the upper connecting surface and the lower connecting surface of a connecting piece, and a screw rod sequentially passes through the first washer, the connecting piece and the second washer and is screwed and fixed by a nut; the middle part of the first gasket matched with the head of the screw is provided with a polygonal bulge, the edge of the polygonal bulge of the first gasket is tightly abutted with one edge of a hexagon of the head of the screw for limiting, and the second gasket matched with the nut is a flat gasket.

The prior art also discloses a check washer, it includes: a first portion and a second portion that are spliced to form the check washer, the check washer having a central hole in the center.

However, when the anti-loose washer is tightly arranged and connected to two or more bolts, the bolts are loosened by rotation.

Disclosure of Invention

The utility model provides a combination locking gasket that does not utilize friction in principle to when solving two or more than two bolt zonulae occludens and connect, the bolt is because of rotatory not hard up problem.

The utility model aims at realizing through the following technical scheme:

a combined anti-loose gasket is composed of an anti-loose gasket I1 and an anti-loose gasket II 2;

the anti-loosening gasket I1 and the anti-loosening gasket II 2 are respectively positioned on the upper connecting surface and the lower connecting surface of the connecting piece 3, and the screw rod 4 sequentially penetrates through the anti-loosening gasket I1, the connecting piece 3 and the anti-loosening gasket II 2 and is screwed and fixed through the nut 7;

the anti-loosening gasket I1 is matched with the head of the screw rod 4, and a plurality of vertical plate bulges 5 which are abutted against the head of the screw rod 4 are arranged in the middle of the anti-loosening gasket I1;

the anti-loosening gasket II 2 comprises a plurality of annular structures and a connecting part for connecting the annular structures;

the middle parts of the plurality of annular structures are respectively matched with the corresponding nuts 7, and a plurality of gaps which are not communicated with the inner ring are formed in the outer circumference side of each annular structure; the bottom of the annular structure is provided with a plurality of fan-shaped surfaces 6, and the fan-shaped surfaces 6 and the annular structure form an angle of 10-80 degrees.

Furthermore, the middle part of the anti-loosening gasket I1 is provided with a square hole.

Further, the vertical plate protrusion 5 is made by a stamping method.

Further, the annular structure and the connecting part are integrally formed.

Further, the outer circumference side of the ring structure is provided with 11 slits equally divided by 12 not communicating with the inner ring.

Furthermore, the convex surface of the vertical plate of the anti-loosening gasket I1 is close to and limited by one side of the hexagon at the head of the screw rod 4.

Further, the sector surfaces 6 limit the hexagonal side plates of the nut 7.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the combined anti-loosening gasket of the utility model has the advantages that the flanging structure of the anti-loosening gasket I is easy to ensure that the flanging is vertical to the bottom edge, and the flanging can be appropriately thicker, so as to ensure that the anti-loosening gasket has enough strength and rigidity to lock the head of the screw, and prevent the screw bolt from loosening caused by the rotation of the head of the screw;

2. the anti-loosening gasket II has a plurality of parts which can be independently tilted to lock a plurality of edge surfaces of the nut, so that the problems that if the gasket is hard, one long edge of the gasket is difficult to be completely folded along an edge line of the nut and 2 folded edges are mutually interfered are solved, the tilted part of the anti-loosening gasket II can be tightly attached to each edge surface of the nut through a common tool, the anti-loosening effect is remarkably improved, and the anti-loosening effect is favorably prevented from being rotated and loosened;

3. because the combined gasket is not anti-loose by friction, the friction between the nut and the contact surface can be reduced as much as possible, and the axial force of the bolt can be increased as much as possible by tightening torque; the combined gasket reduces the pressure of the pretightening force of the bolt on the contact surface;

4. the whole structure is convenient for finding initial looseness, if the nut is loosened, the tilting part of the gasket II is bound to obviously deform, and an obvious gap is bound to be formed at the matching part of the gasket II and the edge surface of the nut; if the head of the screw rod is loosened, the flanging part of the gasket I is inevitably obviously deformed, and an obvious gap is inevitably formed at the matching part of the flanging part and the head of the screw rod;

5. the whole structure can be conveniently disassembled and assembled by using a universal tool, and the anti-loosening gasket I can be repeatedly used for a long time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a connector;

FIG. 2 shows the screw head with the anti-loosening washer in cooperation with surface A;

FIG. 3 is a front view of a lock washer;

FIG. 4 is a top view of the anti-loosening gasket (4 turned-up edges perpendicular to the paper face are formed into a square);

FIG. 5 is an assembly view of a nut and a locking washer II at the bottom of the screw;

FIG. 6 is a front view of the locking washer II;

FIG. 7 is an enlarged view of a part of the assembly of a nut at the bottom of the screw and a locking washer II;

FIG. 8 shows two anti-loosening washers with a large distance between bolts;

FIG. 9 is a top view of the locking washer I;

FIG. 10 is a schematic view of a three-nut lock washer II;

FIG. 11 is a schematic view of a case where the distance between two bolts is small;

fig. 12 is a diagram of two bolt application states.

In the figure, 1, a locking gasket I2, a locking gasket II 3, a connecting piece 4, a screw 5, a vertical plate bulge 6, a sector 7 and a nut are arranged.

Detailed Description

The invention will be further described with reference to the following examples:

the present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

As shown in figure 1, the utility model discloses combination check washer comprises check washer I1 and check washer II 2.

Check washer I1 and check washer II 2 are located the upper junction surface and the lower junction surface of connecting piece 3 respectively, and screw rod 4 passes check washer I1, connecting piece 3 and check washer II 2 in proper order and screws up fixedly through nut 7.

The middle of the anti-loosening gasket I1 is provided with a square hole, the anti-loosening gasket I1 is matched with the head of the screw rod 4, two sides of the square hole are respectively provided with a vertical plate bulge 5 which is close to the head of the screw rod 4, the vertical plate bulge 5 can be manufactured by adopting a stamping method, and the head of the screw rod 4 and even the whole screw rod 4 can not rotate by utilizing the extrusion effect of the vertical plate bulge 5 and the screw rod.

The anti-loosening gasket II 2 comprises a plurality of annular structures and a connecting part connected with the annular structures, and the annular structures and the connecting part are integrally formed.

Wherein, the middle parts of the plurality of annular structures are respectively matched with the nuts 7, and the outer circumference side of the annular structures is provided with 11 slits which are equally divided according to 12 and are not communicated with the inner ring. The bottom of the annular structure is provided with a plurality of fan-shaped surfaces 6, and the fan-shaped surfaces 6 and the annular structure form an angle of 10-80 degrees.

Specifically, the surface of the vertical plate protrusion 5 of the anti-loosening gasket I1 is abutted against one side of the hexagon at the head of the screw 4 for limiting.

And the sector surface 6 on the anti-loosening gasket II 2 limits the hexagonal side plate of the nut 7.

The specific installation process is as follows:

first, the upper connection surface a is assembled: during assembly, one edge of the six edges of the head of each screw rod 4 is tightly attached to the edge of the vertical plate protrusion 5 of the anti-loosening gasket I1, and the head of each screw rod 4 and even the whole screw rod 4 cannot rotate under the extrusion action of the two edges. The anti-loosening gasket I1 limits the plurality of screws 4 (the anti-loosening gasket I1 limits two screw 4 heads as shown in FIG. 8, three screw 4 heads are limited in FIG. 9, or more screw heads are limited by the combination of the anti-loosening gaskets I1), so that the heads of the plurality of screws 4 and the anti-loosening gasket I1 cannot rotate and translate with each other. Not only is anti-loosening reliable, but also the nut is convenient to screw and disassemble. According to the method of adding the anti-loosening gasket on each screw, when the nut 7 is screwed or disassembled, the nut 7 can be screwed or disassembled at the other end only by fixing the screw head by a spanner because the gasket cannot limit the rotation of the screw 4. At present, as long as the screw rod 4 and the anti-loosening gasket I1 are completely installed in place on the connecting piece, the screw rod 4 cannot rotate, and the nut 7 can be directly screwed down or disassembled without fixing the screw rod 4 by a wrench. The vertical plate protrusion of the anti-loosening gasket I1 and the heads of the plurality of screw rods 4 are mutually limited, so that the relative rotation and the translation of the anti-loosening gasket I1 cannot be guaranteed.

Then, the lower connecting surface B is assembled: after the end hole of the anti-loosening gasket II 2 is inserted into the screw rod 4, the gasket cannot rotate when the nut 7 is screwed down. Moreover, after the nut 7 is screwed, at least 5 exposed fan-shaped areas in the circumferential area pressed by the nut 7 in the radial direction can be upwarped to tightly adhere to 5 of 6 prismatic surfaces of the nut, and the nut 7 is prevented from rotating to cause bolt loosening.

In which, as shown in fig. 8 and 9, five bolts can be used in combination, two bolts shown in fig. 8 and 9 can be used in combination, seven bolts can be used, two bolts shown in fig. 8 and one bolt shown in fig. 9 can be used, and the situation of three bolts shown in fig. 9 can be changed with the field environment, such as a right triangle, an obtuse triangle or an acute triangle.

When the bolt is close, the locking washer II 2 can fold the fan-shaped surfaces 6 on the periphery of the nut 7, and if the bolt is far away, a plurality of fan-shaped surfaces 6 can be folded properly.

In fig. 10, the sector 6 is raised 90 degrees, and actually 10 to 80 degrees.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (7)

1. A combination check washer which characterized in that: the anti-loosening gasket comprises an anti-loosening gasket I (1) and an anti-loosening gasket II (2);

the anti-loosening gasket I (1) and the anti-loosening gasket II (2) are respectively positioned on the upper connecting surface and the lower connecting surface of the connecting piece (3), and the screw rod (4) sequentially penetrates through the anti-loosening gasket I (1), the connecting piece (3) and the anti-loosening gasket II (2) and is screwed and fixed through the nut (7);

the anti-loosening gasket I (1) is matched with the head of the screw rod (4), and a plurality of vertical plate bulges (5) which are tightly close to the head of the screw rod (4) are arranged in the middle of the anti-loosening gasket I (1);

the anti-loosening gasket II (2) comprises a plurality of annular structures and a connecting part for connecting the annular structures;

the middle parts of the plurality of annular structures are respectively matched with the corresponding nuts (7), and a plurality of gaps which are not communicated with the inner ring are formed in the outer circumference side of each annular structure; the bottom of the annular structure is provided with a plurality of fan-shaped surfaces (6), and the fan-shaped surfaces (6) and the annular structure form an angle of 10-80 degrees.

2. The combination lock washer of claim 1, wherein: the middle part of the anti-loosening gasket I (1) is provided with a square hole.

3. The combination lock washer of claim 1, wherein: the vertical plate bulge (5) is manufactured by adopting a stamping method.

4. The combination lock washer of claim 1, wherein: the annular structure and the connecting part are integrally formed.

5. The combination lock washer of claim 1, wherein: the outer circumference of the ring structure is provided with 11 slits which are equally divided by 12 and are not communicated with the inner ring.

6. The combination lock washer of claim 1, wherein: the face of the vertical plate protrusion (5) of the anti-loosening gasket I (1) is close to and limited with one side of the hexagon of the head of the screw rod (4).

7. The combination lock washer of claim 1, wherein: the sector (6) limits the hexagonal side plate of the nut (7).

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