Anti-loosening combined gasket

Abstract

The utility model discloses an anti-loosening combined washer which comprises a first washer body and a second washer body spliced with the first washer body, and pressing pieces are arranged above the first washer body and the second washer body. The upper surface of the first ring body and the upper surface of the second ring body are each provided with a plurality of elastic extrusion structures which are distributed in a circumferential array mode and used for upwards extruding the pressing pieces, and the inner ring side walls of the first ring body and the second ring body are each provided with a non-return ball. The first ring body and the second ring body can be conveniently combined into a complete gasket through matching between the first clamping groove and the second protrusion and matching between the first protrusion and the second clamping groove, the gasket cannot automatically slide through limitation of the first clamping groove and the second clamping groove, and the anti-loosening purpose can be achieved through matching of the first clamping groove and the second clamping groove and the non-return ball. And the anti-loosening effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of fasteners, and in particular relates to an anti-loosening combined washer. Background Art

[0002] Bolt connection is one of the most widely used connection methods in mechanical manufacturing. Threaded fasteners have the characteristics of simple structure, high reliability and easy assembly. In the fields of mining machinery, automobile manufacturing, petrochemical industry, etc., threaded connections have a large number of applications, and once failure occurs, it may affect the service life of the workpiece and the normal operation of the machine. At present, quality and safety problems caused by loose connection failure of threaded fasteners still occur frequently, so washer fasteners have been widely cited.

[0003] At present, the traditional metal connection fasteners used in China are bolts (or nuts) and washers, which are inserted into the fastener connector by bolts and tightened and fixed by ordinary round flat washers or open spring washers or ordinary anti-loosening washers with nuts. The function of the washers is to prevent the bolts (or nuts) and fasteners from loosening and falling off. Under high temperature and high-frequency vibration impact, this fastening connection structure assembly is very likely to cause the bolts (or nuts) and fasteners in the fastening connection structure to loosen and fall off, thereby causing equipment damage and production safety accidents, bringing maintenance difficulties and economic losses to equipment owners and manufacturers. Utility Model Content

[0004] The utility model aims to provide an anti-loosening combined washer to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: an anti-loosening combination gasket, comprising a first ring body and a second ring body spliced ​​with the first ring body, wherein pressure plates are arranged above the first ring body and the second ring body, and the upper surfaces of the first ring body and the second ring body are provided with a plurality of elastic extrusion structures distributed in a circular array for extruding the pressure plates upward, and the inner ring side walls of the first ring body and the second ring body are provided with check balls.

[0006] Preferably, the first ring body and the second ring body are both semicircular ring structures.

[0007] Preferably, both ends of the first ring body are provided with a first card slot, one side of the first card slot is provided with a first protrusion, both ends of the second ring body are provided with a second card slot corresponding to the first protrusion, one side of the second card slot is provided with a second protrusion corresponding to the first card slot, and the size of the second protrusion is consistent with the size of the first card slot, and the size of the second card slot is consistent with the size of the first protrusion.

[0008] Preferably, the first clamping slot, the first protrusion, the second clamping slot and the second protrusion are all provided with mutually matching inclined surfaces.

[0009] Preferably, the clamping plate is a semicircular ring structure, and grooves are provided at the bottom of both ends of the clamping plate on the first ring body, and protrusions corresponding to the grooves are provided at both ends of the clamping plate on the second ring body, and the size of the protrusions matches the size of the grooves.

[0010] Preferably, the elastic extrusion structure includes a connecting block fixedly connected to the bottom of the pressing plate, a movable block is provided at the bottom of the connecting block, a spring is provided at the bottom of the movable block, the upper surfaces of the first circle body and the second circle body are provided with movable grooves corresponding to the movable blocks, the bottom of the spring is fixedly connected to the bottom inner wall of the movable groove, and the top of the movable groove is provided with an opening corresponding to the connecting block.

[0011] Preferably, the size of the opening is smaller than the size of the movable groove, the size of the movable block is consistent with the size of the movable groove, and the size of the connecting block is consistent with the size of the opening.

[0012] Preferably, the upper surface of the pressing plate and the lower surfaces of the first ring body and the second ring body are all provided with anti-slip teeth.

[0013] The utility model provides an anti-loosening combined washer with the following advantages:

[0014] 1. The utility model facilitates the combination of the first ring body and the second ring body into a complete gasket through the cooperation between the first groove and the second protrusion and the cooperation between the first protrusion and the second groove. The restriction of the first groove and the second groove prevents the gasket from sliding on its own, and the anti-loosening purpose can be achieved by cooperating with the check ball, and the anti-loosening effect is good.

[0015] 2. After the bolts and nuts are installed, the upper surface of the clamping plate will contact the bottom of the bolt's nut, and the bottom of the first circle and the second circle will contact the surface of the nut. Under the elastic force of the spring, and in conjunction with the movable block and the connecting block, the clamping plate will be firmly in contact with the bottom of the bolt's nut, further increasing the friction between the clamping plate and the connecting piece, further achieving an anti-slip and anti-loosening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a connection diagram of the first ring body and the pressing sheet in the utility model;

[0019] Figure 3 for Figure 2 Front view of

[0020] Figure 4 It is a structural schematic diagram of the first circle in the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the compression piece in the utility model;

[0022] Figure 6 This is a connection diagram of the second ring body and the pressing sheet in the utility model;

[0023] Explanation of the markings in the figure: 1. first circle body; 2. second circle body; 3. clamping plate; 4. check ball; 5. first slot; 6. first protrusion; 7. groove; 8. movable slot; 9. opening; 10. connecting block; 11. movable block; 12. spring; 13. second protrusion; 14. second slot; 15. convex block. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0029] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of an anti-loosening combined washer of the utility model in conjunction with the accompanying drawings.

[0030] like Figure 1-6 As shown, the utility model is an anti-loosening combined gasket, comprising a first ring body 1 and a second ring body 2 spliced ​​with the first ring body 1, the first ring body 1 and the second ring body 2 are both semicircular ring structures, the inner ring side walls of the first ring body 1 and the second ring body 2 are both provided with a check ball 4, both ends of the first ring body 1 are provided with a first groove 5, one side of the first groove 5 is provided with a first protrusion 6, both ends of the second ring body 2 are provided with a second groove 14 distributed corresponding to the first protrusion 6, one side of the second groove 14 is provided with a groove corresponding to the first groove 5, and the size of the second protrusion 13 matches the size of the first slot 5, and the size of the second slot 14 matches the size of the first protrusion 6. Through the cooperation between the first slot 5 and the second protrusion 13 and the cooperation between the first protrusion 6 and the second slot 14, it is convenient to combine the first ring body 1 and the second ring body 2 into a complete gasket. The restrictions of the first slot 5 and the second slot 14 prevent it from sliding on its own, and the anti-loosening purpose can be achieved with the anti-return ball 4, and the anti-loosening effect is good. The first slot 5, the first protrusion 6, the second slot 14 and the second protrusion 13 are all provided with mutually matching inclined surfaces. Through the setting of the inclined surfaces, the first ring body 1 and the second ring body are more tightly and reliably spliced.

[0031] A compression sheet 3 is disposed above the first circle body 1 and the second circle body 2. The compression sheet 3 is a semicircular ring structure, and grooves 7 are disposed at the bottom of both ends of the compression sheet 3 on the first circle body 1. Both ends of the compression sheet 3 on the second circle body 2 are provided with protrusions 15 corresponding to the grooves 7. The size of the protrusion 15 matches the size of the groove 7. When the first circle body 1 and the second circle body 2 are spliced, the two compression sheets 3 can be combined together through the cooperation between the protrusion 15 and the groove 7. The upper surfaces of the first circle body 1 and the second circle body 2 are provided with a plurality of elastic extrusion structures distributed in a circumferential array for extruding the compression sheet 3 upward. The elastic extrusion structure includes a connecting block 10 fixedly connected to the bottom of the compression plate 3, a movable block 11 is arranged at the bottom of the connecting block 10, a spring 12 is arranged at the bottom of the movable block 11, the upper surfaces of the first circle body 1 and the second circle body 2 are provided with movable grooves 8 corresponding to the movable block 11, the bottom of the spring 12 is fixedly connected to the bottom inner wall of the movable groove 8, and the top of the movable groove 8 is provided with an opening 9 corresponding to the connecting block 10. When installed by bolts and nuts, the upper surface of the compression plate 3 will contact the bottom of the nut of the bolt, and the bottom of the first circle body 1 and the second circle body 2 will contact the surface of the nut. Under the elastic force of the spring 12, and in conjunction with the movable block 11 and the connecting block 10, the compression plate 3 will be firmly in contact with the bottom of the nut of the bolt, further increasing the friction between the compression plate 3 and the connecting piece, and further playing an anti-slip and anti-loosening effect. The size of the opening 9 is smaller than that of the movable groove 8, the size of the movable block 11 matches that of the movable groove 8, and the size of the connecting block 10 matches that of the opening 9, which can effectively prevent the movable block 11 from falling off. The upper surface of the pressing piece 3 and the lower surfaces of the first ring body 1 and the second ring body 2 are all provided with anti-skid teeth. The provision of the anti-skid teeth increases the friction between the gasket and the surface of the connector, further improving the anti-skid and anti-loosening effect.

[0032] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An anti-loosening combined washer, characterized in that: The invention comprises a first ring body (1) and a second ring body (2) connected to the first ring body (1); a pressing plate (3) is arranged above the first ring body (1) and the second ring body (2); a plurality of elastic extrusion structures distributed in a circular array and used for pressing the pressing plate (3) upward are arranged on the upper surfaces of the first ring body (1) and the second ring body (2); and a check ball (4) is arranged on the inner ring side walls of the first ring body (1) and the second ring body (2).

2. The anti-loosening combined washer according to claim 1, characterized in that: The first ring body (1) and the second ring body (2) are both semicircular ring structures.

3. The anti-loosening combined washer according to claim 1, characterized in that: Both ends of the first ring body (1) are provided with a first slot (5), one side of the first slot (5) is provided with a first protrusion (6), both ends of the second ring body (2) are provided with a second slot (14) corresponding to the first protrusion (6), one side of the second slot (14) is provided with a second protrusion (13) corresponding to the first slot (5), and the size of the second protrusion (13) is consistent with the size of the first slot (5), and the size of the second slot (14) is consistent with the size of the first protrusion (6).

4. The anti-loosening combined washer according to claim 3, characterized in that: The first clamping groove (5), the first protrusion (6), the second clamping groove (14) and the second protrusion (13) are all provided with mutually matching inclined surfaces.

5. The anti-loosening combined washer according to claim 1, characterized in that: The clamping plate (3) is a semicircular ring structure, and grooves (7) are provided at the bottom of both ends of the clamping plate (3) located on the first ring body (1), and protrusions (15) distributed corresponding to the grooves (7) are provided at both ends of the clamping plate (3) located on the second ring body (2), and the size of the protrusions (15) is consistent with the size of the grooves (7).

6. The anti-loosening combined washer according to claim 1, characterized in that: The elastic extrusion structure comprises a connecting block (10) fixedly connected to the bottom of the compression plate (3); a movable block (11) is arranged at the bottom of the connecting block (10); a spring (12) is arranged at the bottom of the movable block (11); the upper surfaces of the first ring body (1) and the second ring body (2) are both provided with movable grooves (8) distributed corresponding to the movable blocks (11); the bottom of the spring (12) is fixedly connected to the bottom inner wall of the movable groove (8); and the top of the movable groove (8) is provided with an opening (9) distributed corresponding to the connecting block (10).

7. The anti-loosening composite washer according to claim 6, characterized in that: The size of the opening (9) is smaller than the size of the movable groove (8), the size of the movable block (11) matches the size of the movable groove (8), and the size of the connecting block (10) matches the size of the opening (9).

8. The anti-loosening combined washer according to claim 1, characterized in that: The upper surface of the pressing plate (3) and the lower surfaces of the first ring body (1) and the second ring body (2) are all provided with anti-slip teeth.

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