An anti-return washer, an anti-return nut, and a combined structure

Abstract

This utility model discloses an anti-loosening washer, an anti-loosening nut, and a combined structure. The anti-loosening washer has a washer body, one surface of which has several protrusions, including a first step surface, a second step surface, and a third step surface. The lowest point of the second step surface is higher than or equal to the highest point of the first step surface, and the highest point of the third step surface is higher than or equal to the highest point of the second step surface. An anti-loosening nut has the lowest point of the first step surface, the lowest point of the second step surface, and the highest point of the third step surface forming an upward trend in a waveform, while the highest point of the third step surface and the lowest point of the third step surface forming a downward trend in a waveform. A combined structure includes a bolt, a washer, and a nut, with the protrusions on the washer contacting and being installed with the protrusions on the nut. Positioning and anti-loosening are achieved through the contact of their respective first step surfaces, and anti-loosening is achieved through the contact of their second step surfaces, so that the waveform of the upper and lower contacting protrusions forms a blocking trend, achieving the effect of preventing loosening.

Description

Technical Field

[0001] This utility model relates to the technical field of parts used in mechanical connections such as gaskets and nuts, and in particular to an anti-retraction gasket, an anti-retraction nut, and a combined structure. Background Technology

[0002] Currently, bolt assemblies are commonly used to connect component one to component two or several components. A bolt assembly typically includes a bolt, nut, and washer. The nut is screwed onto the threaded shank of the bolt. Typically, a washer is also placed between the nut and the component. Conventional washers are made of metal with smooth surfaces on both sides. Conventional nuts are also usually made of metal with threads in their inner hole and smooth upper and lower surfaces. When conventional bolt assemblies are used, for example, in the installation of solar panels and frames in solar modules, the nut is screwed onto the threaded shank of the bolt and tightened. However, because solar panels are usually installed at high altitudes with strong winds, the entire solar module can easily sway, causing the nut and threaded shank to loosen. This affects the stability of the connection, requiring additional manual tightening of the nut and maintenance of multiple bolt assemblies. Using conventional bolt assemblies to install solar modules increases maintenance costs. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an anti-retraction washer, an anti-retraction nut, and a combined structure.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an anti-retraction gasket, having a gasket body, one surface of which has a plurality of protrusions, the protrusions including a first step surface, a second step surface, and a third step surface, the lowest point of the second step surface being higher than or equal to the highest point of the first step surface, the length of the second step surface being less than that of the first step surface, the highest point of the third step surface being higher than or equal to the highest point of the second step surface, and the lowest point of the third step surface being lower than or equal to the lowest point of the first step surface.

[0005] Preferably, the first step surface serves as a positioning step surface; the second step surface serves as an anti-retraction step surface; and one surface of the gasket body forms a circumferential array of protrusions.

[0006] The lowest point of the first surface, the lowest point of the second surface, and the highest point of the third surface form an upward trend in the waveform, while the highest point of the third surface and the lowest point of the third surface form a downward trend in the waveform.

[0007] Preferably, the slope width of the third step surface is approximately three times greater than the slope width of the first step surface; the slope width of the third step surface is also approximately three times greater than the slope width of the second step surface. Designing the slope of the third step surface to be wider increases the guiding area, making it easier to provide a guiding channel during tightening.

[0008] Preferably, the gasket body is a thin-shell product formed by shelling. For example, the gasket body is a thin-shell product integrally manufactured by silicone injection molding.

[0009] Preferably, the gasket body is formed by stamping a metal sheet or is made of silicone. For example, the gasket body is a solid filler product formed by stamping a metal sheet or a solid filler product made by silicone injection molding.

[0010] An anti-reverse nut has a nut body, one surface of which has a plurality of protrusions, the protrusions including a first step surface, a second step surface, and a third step surface, the lowest point of the second step surface being higher than or equal to the highest point of the first step surface, the length of the second step surface being less than that of the first step surface, the highest point of the third step surface being higher than or equal to the highest point of the second step surface, and the lowest point of the third step surface being lower than or equal to the lowest point of the first step surface.

[0011] Preferably, the first step surface serves as a positioning step surface; the second step surface serves as an anti-retraction step surface; and a surface of the nut body is formed with a circumferential array of protrusions.

[0012] The lowest point of the first surface, the lowest point of the second surface, and the highest point of the third surface form an upward trend in the waveform, while the highest point of the third surface and the lowest point of the third surface form a downward trend in the waveform.

[0013] Preferably, the slope width of the third step is approximately three times the slope width of the first step; the slope width of the third step is approximately three times the slope width of the second step.

[0014] A combined structure includes a bolt, two or more washers mounted on the bolt, the washers being the aforementioned anti-retraction washers, with the protrusions of the two washers contacting each other.

[0015] A composite structure includes a bolt and two or more nuts mounted on the bolt, the nuts being the aforementioned anti-loosening nuts, with the protrusions of the two nuts contacting each other.

[0016] A composite structure includes a bolt, a washer mounted on the bolt, and a nut mounted on the bolt. The washer is an anti-retraction washer as described above, and the nut is an anti-retraction nut as described above. The protrusion on the washer is in contact with the protrusion on the nut for installation.

[0017] The beneficial effects of this utility model are as follows: When the anti-loosening washer and the anti-loosening nut are used in combination, or when the anti-loosening washer and the anti-loosening nut are used in combination, the protruding part of the washer or nut contacts the protruding part of another washer or nut, and the contact of their respective third-level surfaces allows for rapid guiding and sliding, so that the waveforms of the upper and lower protruding parts are basically matched; the contact of their respective first-level surfaces allows for approximate positioning and anti-loosening blocking, so that the waveforms of the upper and lower contacting protruding parts are basically positioned and abutted, and a blocking trend is formed; the contact of their respective second-level surfaces achieves anti-loosening blocking, so that the waveforms of the upper and lower contacting protruding parts form a blocking trend, thereby achieving the effect of preventing loosening. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the anti-retraction gasket in this utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the anti-retraction gasket in this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the embodiment of the anti-retraction gasket in this utility model as a thin-shell product;

[0021] Figure 4 This is a three-dimensional schematic diagram of the embodiment of the anti-retraction pad in this utility model as a solid filling product;

[0022] Figure 5 This is a three-dimensional schematic diagram of the anti-retraction nut in this utility model;

[0023] Figure 6 This is a front view schematic diagram of the anti-retraction nut in this utility model;

[0024] Figure 7 This is a bottom view of the anti-retraction nut in this utility model;

[0025] Figure 8 This is a three-dimensional schematic diagram of the contact between the washer and the nut in a combined structure of this utility model;

[0026] Figure 9 This is a three-dimensional schematic diagram of a combined structure in this utility model in which the washer and nut are not tightened and are in a separated state;

[0027] Wherein: 101, first-order surface; 102, second-order surface; 103, third-order surface. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] like Figures 1-4 As shown, an anti-retraction gasket has a gasket body. One surface of the gasket body has a plurality of protrusions. The protrusions include a first step surface 101, a second step surface 102, and a third step surface 103. The lowest point of the second step surface 102 is higher than or equal to the highest point of the first step surface 101. The length of the second step surface 102 is less than that of the first step surface 101. The highest point of the third step surface 103 is higher than or equal to the highest point of the second step surface 102. The lowest point of the third step surface 103 is lower than or equal to the lowest point of the first step surface 101.

[0030] Specifically, in one optional embodiment, the first stepped surface 101 serves as a positioning stepped surface; the second stepped surface 102 serves as a backstop stepped surface; and a surface of the gasket body is formed with protrusions arranged in a circumferential array.

[0031] The lowest point of the first surface 101, the lowest point of the second surface 102, and the highest point of the third surface 103 form an upward trend in the waveform, while the highest point of the third surface 103 and the lowest point of the third surface 103 form a downward trend in the waveform.

[0032] Specifically, in one optional embodiment, the slope width of the third step surface 103 is approximately three times the slope width of the first step surface 101; the slope width of the third step surface 103 is approximately three times the slope width of the second step surface 102. Designing the slope of the third step surface 103 to be wider increases the guiding area and makes it easier to provide a guiding channel during tightening.

[0033] Specifically, in one optional embodiment, the gasket body is a thin-shell product formed by shelling. For example, the gasket body is a thin-shell product integrally manufactured by silicone injection molding.

[0034] Specifically, in one optional embodiment, the gasket body is formed by stamping a metal sheet or is made of silicone. For example, the gasket body may be a solid filler product formed by stamping a metal sheet or a solid filler product made by silicone injection molding.

[0035] like Figures 5-7 As shown, an anti-reverse nut has a nut body, one surface of which has a plurality of protrusions. The protrusions include a first step surface 101, a second step surface 102, and a third step surface 103. The lowest point of the second step surface 102 is higher than or equal to the highest point of the first step surface 101, and the length of the second step surface 102 is less than that of the first step surface 101. The highest point of the third step surface 103 is higher than or equal to the highest point of the second step surface 102, and the lowest point of the third step surface 103 is lower than or equal to the lowest point of the first step surface 101.

[0036] Specifically, in one optional embodiment, the first stepped surface 101 serves as a positioning stepped surface; the second stepped surface 102 serves as an anti-retraction stepped surface; and a surface of the nut body is formed with protrusions arranged in a circumferential array.

[0037] The lowest point of the first surface 101, the lowest point of the second surface 102, and the highest point of the third surface 103 form an upward trend in the waveform, while the highest point of the third surface 103 and the lowest point of the third surface 103 form a downward trend in the waveform.

[0038] Specifically, in one optional embodiment, the slope width of the third step surface 103 is approximately three times the step width of the first step surface 101; the slope width of the third step surface 103 is approximately three times the step width of the second step surface 102.

[0039] A combined structure includes a bolt, two or more washers mounted on the bolt, the washers being the aforementioned anti-retraction washers, with the protrusions of the two washers contacting each other.

[0040] A composite structure includes a bolt and two or more nuts mounted on the bolt, the nuts being the aforementioned anti-loosening nuts, with the protrusions of the two nuts contacting each other.

[0041] like Figures 8-9 As shown, a combined structure includes a bolt, a washer mounted on the bolt, and a nut mounted on the bolt, characterized in that: the washer is the aforementioned anti-retraction washer, and the nut is the aforementioned anti-retraction nut; the protrusion on the washer is in contact with the protrusion on the nut for installation.

[0042] Specifically, in one optional embodiment, when the combined structure is used to fasten several parts, the parts are located between the bolt head and the washer, and the protrusion on the washer contacts the protrusion on the nut.

[0043] When anti-loosening washers and anti-loosening nuts are used in combination, or when anti-loosening washers are used in combination with anti-loosening nuts, the protruding part of one washer or nut contacts the protruding part of another washer or nut. Through the contact of their respective third-level surfaces 103, they are quickly guided and slid in, so that the waveforms of the upper and lower protruding parts are basically matched. Through the contact of their respective first-level surfaces 101, they are roughly positioned and prevented from loosening, so that the waveforms of the upper and lower contacting protruding parts are basically positioned and abutted and form a blocking trend. Through the contact of their respective second-level surfaces 102, they achieve the anti-loosening blocking, so that the waveforms of the upper and lower contacting protruding parts form a blocking trend, thus achieving the effect of preventing loosening.

[0044] The above description is only a specific embodiment of the present utility model. Various examples and illustrations do not constitute a limitation on the substantive content of the present utility model. Those skilled in the art can modify or transform the above-described specific embodiments after reading the description without departing from the essence and scope of the utility model.

Claims

1. An anti-retraction gasket, characterized in that: The device has a gasket body, one surface of which has a plurality of protrusions, the protrusions including a first step surface (101), a second step surface (102), and a third step surface (103). The lowest point of the second step surface (102) is higher than or equal to the highest point of the first step surface (101), the length of the second step surface (102) is less than that of the first step surface (101), the highest point of the third step surface (103) is higher than or equal to the highest point of the second step surface (102), and the lowest point of the third step surface (103) is lower than or equal to the lowest point of the first step surface (101).

2. The anti-retraction gasket according to claim 1, characterized in that: The first step surface (101) serves as a positioning step surface; the second step surface (102) serves as a backstop step surface; and a surface of the gasket body forms a circumferential array of protrusions. The lowest point of the first surface (101), the lowest point of the second surface (102), and the highest point of the third surface (103) form an upward trend in the waveform, while the highest point of the third surface (103) and the lowest point of the third surface (103) form a downward trend in the waveform.

3. The anti-retraction gasket according to claim 1, characterized in that: The slope width of the third step (103) is about 3 times greater than the slope width of the first step (101); the slope width of the third step (103) is about 3 times greater than the slope width of the second step (102).

4. The anti-retraction gasket according to claim 1, characterized in that: The gasket body is a thin-shell product formed by shelling.

5. The anti-retraction gasket according to claim 1, characterized in that: The gasket body is formed by stamping a metal sheet or is made of silicone.

6. An anti-loosening nut, characterized in that: The nut body has a nut body with a plurality of protrusions on one surface. The protrusions include a first step surface (101), a second step surface (102), and a third step surface (103). The lowest point of the second step surface (102) is higher than or equal to the highest point of the first step surface (101). The length of the second step surface (102) is less than that of the first step surface (101). The highest point of the third step surface (103) is higher than or equal to the highest point of the second step surface (102). The lowest point of the third step surface (103) is lower than or equal to the lowest point of the first step surface (101).

7. The anti-loosening nut according to claim 6, characterized in that: The first step surface (101) serves as a positioning step surface; the second step surface (102) serves as a backstop step surface; and a surface of the nut body is formed with a circumferential array of protrusions. The lowest point of the first surface (101), the lowest point of the second surface (102), and the highest point of the third surface (103) form an upward trend in the waveform, while the highest point of the third surface (103) and the lowest point of the third surface (103) form a downward trend in the waveform.

8. The anti-loosening nut according to claim 6, characterized in that: The slope width of the third step (103) is about 3 times greater than the slope width of the first step (101); the slope width of the third step (103) is about 3 times greater than the slope width of the second step (102).

9. A composite structure comprising a bolt and two or more washers mounted on the bolt, characterized in that: The gasket is the anti-retraction gasket as described in any one of claims 1-5, and the protrusions of the two gaskets are installed in contact with each other.

10. A composite structure comprising a bolt and two or more nuts mounted on the bolt, characterized in that: The nut is an anti-reverse nut as described in any one of claims 6-8, and the protrusions of the two nuts are in contact with each other during installation.

11. A composite structure comprising a bolt, a washer mounted on the bolt, and a nut mounted on the bolt, characterized in that: The gasket is an anti-retraction gasket as described in any one of claims 1-5, and the nut is an anti-retraction nut as described in any one of claims 6-8; the protrusion on the gasket is installed in contact with the protrusion of the nut.

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