Anti-loosening washer and anti-loosening tool-free dismounting handle structure

Abstract

The application discloses a loosening-preventing gasket and loosening-preventing tool-free dismounting handle structure, which comprises a main machine shell and a handle assembly, the handle assembly is threadedly connected with the main machine shell, the loosening-preventing gasket is fixed between the main machine shell and the handle assembly, the loosening-preventing gasket is provided with an inclined stop section, the left and right sides of the stop section are provided with low-position parts and high-position parts, the high-position parts are located obliquely above the low-position parts, the contact surfaces of the handle assembly and the main machine shell are provided with recessed grooves, the low-position parts of the stop section of the loosening-preventing gasket are located in the grooves of the main machine shell, and the high-position parts are located in the grooves of the handle assembly. Compared with the prior art, the application has the advantages that the high-position parts of the stop section of the loosening-preventing gasket limit the rotation of the handle assembly towards the low-position parts, the high-position parts limit the handle assembly from returning after the handle assembly is screwed, and when the handle is dismounted, the high-position parts only need to be pressed to be separated from the grooves of the handle assembly, and then the handle assembly can be rotated and dismounted, so that the operation is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of anti-loosening technology, to anti-loosening gaskets, and more particularly to anti-loosening gaskets and tool-free disassembly handle structures. Background Technology

[0002] Most existing power tools, such as mixing drills and aircraft drills, require a detachable auxiliary handle. The auxiliary handle is threaded to the main body housing. Even with the addition of washers such as spring washers, the handle is still prone to loosening or retraction due to the large vibrations of the power tool.

[0003] A non-loosening gasket and a tool-free non-loosening handle structure are provided to prevent loosening, retraction, and easy disassembly. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an anti-loosening gasket and an anti-loosening tool-free disassembly handle structure that is anti-loosening, retractable, and easy to disassemble.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problem is: an anti-loosening gasket, characterized in that it includes a wavy and annular closed washer, and a stop section attached to the annular side of the washer. The stop section is inclined and has a low part and a high part. The low part and the high part are located on the left and right sides of the stop section, and the high part is located obliquely above the low part.

[0006] Furthermore, one end of the stop section is provided with a first connecting section, which connects the washer and the stop section.

[0007] Furthermore, the first connecting segment has a V-shaped structure, and the V-shape of the first connecting segment connecting to the lower part of the stop segment is smaller than the V-shape of the first connecting segment connecting to the upper part of the stop segment.

[0008] Furthermore, the other end of the stopping section is provided with a second connecting section, which is connected to the operating section.

[0009] Furthermore, the upper part of the operating section is flush with the upper part of the stopping section, and the second connecting section has a sloping structure.

[0010] Furthermore, the operated segment is composed of the intersection of a first straight segment and a second straight segment, and the angle between the first straight segment and the second straight segment is greater than 90° and less than 180°.

[0011] Furthermore, the first straight segment connects to the second connecting segment, the first straight segment is flush with the high part of the stop segment, and the end of the second straight segment is higher than the first straight segment.

[0012] The tool-free, anti-loosening handle structure is characterized by comprising a main body housing, a handle assembly, and any of the aforementioned anti-loosening washers. The handle assembly is threadedly connected to the main body housing. The anti-loosening washers are fixed between the main body housing and the handle assembly. Each of the contact surfaces of the main body housing and the handle assembly is provided with a recessed groove. The abutting section of the anti-loosening washers is located between the grooves of the main body housing and the handle assembly. The lower part of the abutting section of the anti-loosening washers is located within the groove of the main body housing, and the higher part is located within the groove of the handle assembly. The abutting section restricts the handle assembly from rotating in one direction relative to the main body housing.

[0013] Furthermore, the handle assembly rotates from the lower part of the anti-loosening pad to the higher part, and the handle assembly is threadedly tightened to the main housing. The higher part of the anti-loosening pad's stop section restricts the handle assembly from becoming loose.

[0014] Furthermore, when the handle assembly rotates back, the pressing operation section of the anti-loosening pad deforms the anti-loosening pad, causing the high part of the anti-loosening pad stop section to disengage from the groove of the handle assembly, or the low part of the anti-loosening pad stop section to disengage from the groove of the main unit housing.

[0015] Compared with the prior art, the advantages of the present invention are that the high part of the anti-loosening pad restricts the handle assembly from rotating toward the low part. After the handle assembly is tightened, the high part restricts the handle assembly from retracting. When disassembling the handle, it is only necessary to press the anti-loosening pad to disengage the high part from the groove of the handle assembly, and the handle assembly can be rotated and disassembled. The operation is simple and convenient. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 A structural diagram of the anti-loosening installation components; Figure 2 Exploded view of components to prevent loosening; Figure 3 A partial cross-sectional view of the components to prevent loosening during installation; Figure 4 This is a structural diagram of the handle assembly; Figure 5 A schematic diagram of the structure of the gasket to prevent it from loosening.

[0018] In the diagram: 1. Anti-loosening gasket; 11. Washer; 12. Stopping section; 12a. Low position; 12b. High position; 13. First connecting section; 14. Second connecting section; 15. Operating section; 15a. First straight section; 15b. Second straight section; 2. Handle assembly; 21. First end face; 22. First groove; 3. Main unit housing; 31. Second end face; 32. Second groove; 4. Screw; 5. Nut. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0021] Most existing power tools, such as mixing drills and aircraft drills, require a detachable auxiliary handle. The auxiliary handle is threaded to the main body housing. Even with the addition of washers such as spring washers, the handle is still prone to loosening due to the large vibrations of the power tool.

[0022] This embodiment mainly describes the anti-loosening gasket and the anti-loosening tool-free disassembly handle structure that are anti-loosening, retractable, and easy to disassemble, as detailed below: like Figure 1-3 As shown, the anti-loosening washer 1 and the anti-loosening tool-free disassembly handle structure include a main body housing 3 and a handle assembly 2. The handle assembly 2 is threadedly connected to the main body housing 3. The anti-loosening washer 1 is fixed between the main body housing 3 and the handle assembly 2. The handle assembly 2 is rotated and tightened to connect to the main body housing 3. The anti-loosening washer 1 restricts the directional rotation of the handle assembly 2 and disengages it from the main body housing 3.

[0023] like Figure 4 As shown, the handle assembly 2 is provided with a screw 4 that extends out of the handle assembly 2. The nut of the screw 4 is fixed inside the handle assembly 2. Preferably, the screw 4 is an external hexagonal screw 4. The handle assembly 2 clamps the nut of the screw 4 for fixed installation.

[0024] The handle assembly 2 is provided with a first end face 21, and a portion of the screw 4 extends out of the first end face 21. The first end face 21 is provided with a plurality of first grooves 22 distributed around the screw 4 axis.

[0025] The main body housing 3 has a nut 5 that mates with the screw 4 on the handle assembly 2. The main body housing 3 clamps the nut 5 for fixed installation. The screw 4 is threaded to the nut 5. The handle assembly 2 is fixedly connected to the main body housing 3.

[0026] The main housing 3 has a second end face 31, which has a through opening for connecting the threaded hole of the nut 5, and the second end face 31 of the main housing 3 has one or more second grooves 32.

[0027] like Figure 5 As shown, the anti-loosening gasket 1 includes a wavy and annularly closed washer 11 and a stop section 12 attached to the annular side of the washer 11. The stop section 12 is inclined and has a low part 12a and a high part 12b. The low part 12a and the high part 12b are located on the left and right sides of the stop section 12, and the high part 12b is located obliquely above the low part 12a.

[0028] Preferably, the lower part 12a of the stop section 12 is located below the lower end face of the washer 11, and the higher part 12b of the stop section 12 is located above the upper end face of the washer 11.

[0029] The anti-loosening gasket 1 has a first connecting section 13 at one end of the abutment section 12. The first connecting section 13 connects the washer 11 and the abutment section 12. The first connecting section 13 has a V-shaped structure, and the V-shape of the first connecting section 13 connecting the lower part 12a of the abutment section 12 is smaller than the V-shape of the first connecting section 13 connecting the upper part 12b of the abutment section 12.

[0030] The other end of the anti-loosening gasket 1 is provided with a second connecting section 14, which is connected to an operating section 15. The operating section 15 is flush with the high part 12b of the abutment section 12. The second connecting section 14 has a sloping structure, and the operating section 15 is composed of a first straight section 15a and a second straight section 15b intersecting. The first straight section 15a and the second straight section 15b have an arc transition, and the included angle between the first straight section 15a and the second straight section 15b is greater than 90° and less than 180°. The first straight section 15a is connected to the second connecting section 14. The first straight section 15a is flush with the high part 12b of the abutment section 12, and the end of the second straight section 15b is higher than the first straight section 15a.

[0031] The handle assembly 2 is threadedly connected to the main housing 3. The washer 11 of the anti-loosening washer 1 is fitted onto the screw 4 of the handle assembly 2, and the handle assembly 2 is located above the main housing 3. The second straight section 15b of the operating section 15 of the anti-loosening washer 1 faces upward.

[0032] The anti-loosening pad 1 has a stop section 12 partially located in the second groove 32 of the main body housing 3. The lower part 12a of the anti-loosening pad 1 has a stop section 12 located in the second groove 32 of the main body housing 3, that is, the lower part 12a is located below the second end face 31 of the main body housing 3, and the higher part 12b of the anti-loosening pad 1 has a stop section 12 located above the second end face 31 of the main body housing 3. The tightening rotation direction of the handle assembly 2 is from the lower part 12a of the anti-loosening pad 1 to the higher part 12b.

[0033] As the handle assembly 2 is tightened and rotated, the distance between the first end face 21 of the handle assembly 2 and the second end face 31 of the main body housing 3 gradually decreases. The first end face 21 of the handle assembly 2 adheres to the abutment section 12 of the anti-loosening pad 1. As the handle assembly 2 continues to tighten and rotate, the first end face 21 of the handle assembly 2 presses down on the abutment section 12 of the anti-loosening pad 1 until the first end face 21 of the handle assembly 2 and the second end face 31 of the main body housing 3 clamp the washer 11 of the anti-loosening pad 1 and fix it. At this time, the wavy structure of the washer 11 is flattened, and the washer 11 restricts the handle assembly 11 from moving up and down relative to the main body housing 3. The abutment section 12 of the anti-loosening pad 1 is located in a first groove 22 of the handle assembly 2 and a second groove 32 of the main body housing 3. The high part 12b of the abutment section 12 of the anti-loosening pad 1 is located in the first groove 22 of the handle assembly 2, and the high part 12b of the abutment section 12 of the anti-loosening pad 1 restricts the handle assembly 2 from being released from the main body housing 3.

[0034] When the handle assembly 2 needs to be disassembled, the anti-loosening pad 1 operating section 15 is pressed down, the anti-loosening pad 1 deforms, the operating section 15 drives the high part 12b of the stop section 12 to move down, the high part 12b of the stop section 12 disengages from the first groove 22 of the handle assembly 2, and the handle assembly 2 can be disassembled; or the anti-loosening pad 1 operating section 15 is lifted up, the anti-loosening pad 1 deforms, the operating section 15 drives the low part 12a of the stop section to move up, the low part 12a of the stop section 12 disengages from the second groove 32 of the main body housing 3, and the handle assembly 2 can be disassembled.

[0035] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] The above provides a detailed description of the anti-loosening gasket and the anti-loosening tool-free disassembly handle structure provided by the present invention. Specific examples have been used to illustrate the principle and implementation of the present invention. The above description of the embodiments is only for the purpose of helping to understand the present invention and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An anti-loosening gasket, characterized in that, It includes a wavy and closed annular washer, and a stop section attached to the annular side of the washer. The stop section is inclined and has a low part and a high part. The low part and the high part are located on the left and right sides of the stop section, and the high part is located diagonally above the low part. One end of the stop section is provided with a first connecting section, which connects the washer and the stop section; The first connecting segment has a V-shaped structure, and the V-shape of the first connecting segment connecting the lower part of the stop segment is smaller than the V-shape of the first connecting segment connecting the upper part of the stop segment.

2. The anti-loosening gasket according to claim 1, characterized in that, The other end of the stop section is provided with a second connecting section, which is connected to the operating section.

3. The anti-loosening gasket according to claim 2, characterized in that, The operating section is flush with the upper part of the stopping section, and the second connecting section has a sloping structure.

4. The anti-loosening gasket according to claim 2, characterized in that, The operating segment is composed of the intersection of a first straight segment and a second straight segment, and the angle between the first straight segment and the second straight segment is greater than 90° and less than 180°.

5. The anti-loosening gasket according to claim 4, characterized in that, The first straight section connects to the second connecting section. The first straight section is flush with the high part of the stop section, and the end of the second straight section is higher than the first straight section.

6. A tool-free, anti-loosening handle structure, characterized in that: The device includes a main housing, a handle assembly, and an anti-loosening washer as described in any one of claims 1 to 5. The handle assembly is threadedly connected to the main housing. The anti-loosening washer is fixed between the main housing and the handle assembly. Each of the contact surfaces of the main housing and the handle assembly is provided with a recessed groove. The abutting section of the anti-loosening washer is located between the grooves of the main housing and the handle assembly. The lower part of the abutting section of the anti-loosening washer is located in the groove of the main housing, and the higher part is located in the groove of the handle assembly. The abutting section restricts the handle assembly from rotating in one direction relative to the main housing.

7. The anti-loosening tool-free disassembly handle structure according to claim 6, characterized in that, The handle assembly moves from the lower part of the anti-loosening pad to the higher part, and the handle assembly is threadedly tightened to the main housing. The higher part of the anti-loosening pad's stop section restricts the handle assembly from loosening.

8. The anti-loosening tool-free disassembly handle structure according to claim 6, characterized in that, When the handle assembly rotates back, pressing the operating section of the anti-loosening pad causes the anti-loosening pad to deform, causing the high part of the anti-loosening pad's stopping section to disengage from the groove of the handle assembly, or the low part of the anti-loosening pad's stopping section to disengage from the groove of the main unit housing.

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