Inner clamping ring enclasping type locknut

Abstract

The utility model discloses an inner clamping ring clasping type locknut which comprises a nut body, an inner thread groove is formed in the inner wall of the nut body, two groups of anti-loosening clasping assemblies are arranged in the nut body, and the number of the anti-loosening clasping assemblies is larger than the number of the anti-loosening clasping assemblies. The anti-loosening enclasping assembly comprises an arc-shaped mounting groove, a compression spring, an annular limiting block, an arc-shaped limiting groove, a screw rod, a cup head, threaded holes, an inner hexagonal limiting groove and a slope groove, and the threaded holes are formed in the left side and the right side of the outer surface of the upper end of the nut. According to the inner clamping ring enclasping type locknut, through the arrangement of the annular limiting block and the compression spring, one end of the annular limiting block can be conveniently clamped in the groove edge of the outer wall of the screw after the nut and the external screw are installed, the nut is prevented from loosening and falling off, stability is improved, and the nut can be tightly clamped by rotating the screw. And one end of the annular limiting block can be driven to be separated from the groove edge of the outer wall of the screw, so that the nut is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an inner clamping ring clamping type anti-loosening nut. Background Art

[0002] After the nut is tightened on the screw, the fastening of the nut and the bolt is generally stable. However, if the fastener is in vibration for a long time, there will be a vibration frequency difference between the connecting parts, which will cause the connecting parts in the connection structure to have a reverse loosening tendency, causing the connection between the nut and the stud to become loose or even fall off.

[0003] In order to improve the anti-loosening ability of the nut in the prior art, double nuts, additional elastic washers, additional flat washers, etc. are generally used to improve the stability of the nut.

[0004] However, in the prior art, when the nuts are prevented from loosening by the above-mentioned method, after being tested by a nut anti-loosening testing machine, the above-mentioned nut anti-loosening method shows a curve decrease in tightness under high-frequency vibration. For example, the flat gasket only needs to vibrate for ten seconds, and the tightness drops directly from 80KN to 0KN; after the spring gasket vibrates for 20 seconds, the tightness does not drop below 80KN to 0KN, but remains at around 6KN. However, the anti-loosening effect is still not good.

[0005] For this reason, we propose an inner clamping ring clamping anti-loosening nut. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides an inner clamping ring type anti-loosening nut, which has the advantages of an anti-loosening clamping component and improved stability of the nut after installation, and can effectively solve the problems in the background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an internal clamping ring clamping anti-loosening nut, including a nut, an inner thread groove is opened on the inner wall of the nut, an anti-loosening clamping component is arranged in the nut, the number of the anti-loosening clamping components is two groups, the anti-loosening clamping component includes an arc-shaped mounting groove, a compression spring, an annular limit block, an arc-shaped limit groove, a screw, a semicircular head, a threaded hole, a hexagonal limit groove and a bevel groove, the threaded hole is opened on the left and right sides of the outer surface of the upper end of the nut, the arc-shaped mounting groove is opened on the left and right sides of the upper middle part of the nut inner cavity, and the bottom of the threaded hole is connected to the arc-shaped mounting groove.

[0010] Preferably, the screw is located in the threaded hole, and the outer wall of the screw is threadedly connected to the threaded hole, the hexagonal limiting groove is opened on the outer surface of the upper end of the screw, and the semicircular head is fixedly installed on the outer surface of the lower end of the screw.

[0011] Preferably, the annular limit block is located in the arc-shaped mounting groove, the outer wall of the annular limit block is slidably connected to the arc-shaped mounting groove, the bevel groove is opened at the lower part of the outer surface of one end of the annular limit block, and the arc-shaped limit groove is opened at the end of the outer surface of the upper end of the annular limit block away from the bevel groove.

[0012] Preferably, the compression spring is located in the arc-shaped mounting groove, the outer surface of one end of the compression spring is fixedly connected to the outer surface of one end of the annular limit block away from the bevel groove, and the outer surface of the other end of the compression spring is fixedly connected to the outer surface of one end of the arc-shaped mounting groove.

[0013] Preferably, the outer wall of the annular limit block is slidably connected to the arc-shaped installation groove, and the outer surface of one end of the annular limit block away from the bevel groove is elastically connected to one end of the arc-shaped installation groove through a compression spring.

[0014] Preferably, the semicircular head is located on one side of the arc-shaped limiting groove.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an inner clamping ring clamping type anti-loosening nut, which has the following beneficial effects:

[0017] 1. The inner clamping ring clamping anti-loosening nut has an annular limit block and a compression spring, so that after the nut and the external screw are installed, one end of the annular limit block can be stuck in the groove edge of the outer wall of the screw to prevent the nut from loosening and falling off, thereby improving stability.

[0018] 2. This kind of inner clamping ring clamping anti-loosening nut can drive one end of the annular limit block to separate from the groove edge of the outer wall of the screw by rotating the screw, so as to facilitate the disassembly of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of an inner clamping ring clamping type anti-loosening nut.

[0020] Figure 2 It is a side cross-sectional view of an inner clamping ring-holding anti-loosening nut of the utility model.

[0021] Figure 3 The utility model is a structural schematic diagram of a screw in an inner clamping ring clamping type anti-loosening nut.

[0022] Figure 4The utility model is a schematic structural diagram of an annular limiting block in an inner clamping ring clamping type anti-loosening nut.

[0023] In the figure: 1. nut; 2. internal thread groove; 3. anti-loosening clamping assembly; 4. arc-shaped mounting groove; 5. compression spring; 6. annular limit block; 7. arc-shaped limit groove; 8. screw; 9. semicircular head; 10. threaded hole; 11. internal hexagon limit groove; 12. bevel groove. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] This embodiment is an inner clamping ring clamping type anti-loosening nut.

[0026] like Figure 1-4 As shown, it includes a nut 1, the inner wall of which is provided with an internal thread groove 2, an anti-loosening clamping component 3 is arranged in the nut 1, and the number of the anti-loosening clamping components 3 is two groups, and the anti-loosening clamping component 3 includes an arc-shaped mounting groove 4, a compression spring 5, an annular limit block 6, an arc-shaped limit groove 7, a screw rod 8, a semicircular head 9, a threaded hole 10, a hexagonal limit groove 11 and a bevel groove 12, the threaded hole 10 is opened on the left and right sides of the outer surface of the upper end of the nut 1, the arc-shaped mounting groove 4 is opened on the left and right sides of the upper middle part of the inner cavity of the nut 1, and the bottom of the threaded hole 10 is connected to the arc-shaped mounting groove 4.

[0027] The screw 8 is located in the threaded hole 10, and the outer wall of the screw 8 is threadedly connected to the threaded hole 10, the hexagonal limiting groove 11 is opened on the outer surface of the upper end of the screw 8, and the semicircular head 9 is fixedly installed on the outer surface of the lower end of the screw 8; the annular limiting block 6 is located in the arc-shaped mounting groove 4, and the outer wall of the annular limiting block 6 is slidably connected to the arc-shaped mounting groove 4, the bevel groove 12 is opened at the lower part of the outer surface of one end of the annular limiting block 6, and the arc limiting groove 7 is opened on the outer surface of the upper end of the annular limiting block 6 away from the bevel groove 12 one end; the compression spring 5 is located in the arc-shaped mounting groove 4, the outer surface of one end of the compression spring 5 is fixedly connected to the outer surface of one end of the annular limit block 6 away from the bevel groove 12, and the outer surface of the other end of the compression spring 5 is fixedly connected to the outer surface of one end of the arc-shaped mounting groove 4; the outer wall of the annular limit block 6 and the arc-shaped mounting groove 4 are slidingly connected, and the outer surface of one end of the annular limit block 6 away from the bevel groove 12 is elastically connected to one end of the arc-shaped mounting groove 4 through the compression spring 5; the semicircular head 9 is located on one side of the arc-shaped limit groove 7.

[0028] It should be noted that the utility model is an inner clamping type anti-loosening nut, which is provided with an anti-loosening clamping component 3. When the nut 1 is connected to an external screw, the nut 1 is threadedly connected to the outer wall of the screw, and the end of the annular limit block 6 with the bevel groove 12 is squeezed, and the annular limit block 6 moves along the arc-shaped installation groove 4. The annular limit block 6 squeezes the compression spring 5 in the arc-shaped installation groove 4. When the nut 1 is installed, the compression spring 5 can be reset to drive one end of the annular limit block 6 to be inserted into the screw The groove edge on the outer wall of the rod plays a limiting role to prevent the nut 1 from loosening and falling off, thereby improving stability; when the nut 1 needs to be disassembled, the screw rod 8 is rotated to move along the threaded hole 10, and the threaded hole 10 drives the semicircular head 9 to descend, and the semicircular head 9 squeezes the annular limit block 6 in the arc-shaped limit groove 7, which can drive the annular limit block 6 to move along the arc-shaped installation groove 4, so that the end of the annular limit block 6 with the bevel groove 12 is separated from the outer wall of the groove edge in the screw, so that the nut 1 can be disassembled.

[0029] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An inner clamping type anti-loosening nut, comprising a nut (1), wherein the inner wall of the nut (1) is provided with an inner thread groove (2), characterized in that: The nut (1) is provided with an anti-loosening clamping assembly (3), the number of the anti-loosening clamping assembly (3) is two groups, and the anti-loosening clamping assembly (3) comprises an arc-shaped installation groove (4), a compression spring (5), an annular limiting block (6), an arc-shaped limiting groove (7), a screw rod (8), a semicircular head (9), a threaded hole (10), a hexagonal limiting groove (11) and a bevel groove (12), the threaded hole (10) is provided on the left and right sides of the outer surface of the upper end of the nut (1), the arc-shaped installation groove (4) is provided on the left and right sides of the upper middle part of the inner cavity of the nut (1), and the bottom of the threaded hole (10) is connected to the arc-shaped installation groove (4).

2. The inner clamping ring locking nut according to claim 1, characterized in that: The screw rod (8) is located in the threaded hole (10), and the outer wall of the screw rod (8) is threadedly connected to the threaded hole (10). The hexagonal limiting groove (11) is provided on the outer surface of the upper end of the screw rod (8), and the semicircular head (9) is fixedly mounted on the outer surface of the lower end of the screw rod (8).

3. The inner clamping ring locking nut according to claim 2, characterized in that: The annular limit block (6) is located in the arc-shaped mounting groove (4), the outer wall of the annular limit block (6) is slidably connected to the arc-shaped mounting groove (4), the inclined groove (12) is formed at the lower part of the outer surface of one end of the annular limit block (6), and the arc-shaped limit groove (7) is formed at the end of the outer surface of the upper end of the annular limit block (6) away from the inclined groove (12).

4. The inner clamping ring locking type anti-loosening nut according to claim 3, characterized in that: The compression spring (5) is located in the arc-shaped installation groove (4); the outer surface of one end of the compression spring (5) is fixedly connected to the outer surface of one end of the annular limit block (6) away from the inclined groove (12); and the outer surface of the other end of the compression spring (5) is fixedly connected to the outer surface of one end of the arc-shaped installation groove (4).

5. The inner clamping ring locking nut according to claim 4, characterized in that: The outer wall of the annular limit block (6) is slidably connected to the arc-shaped installation groove (4); the outer surface of one end of the annular limit block (6) away from the inclined groove (12) is elastically connected to one end of the arc-shaped installation groove (4) via a compression spring (5).

6. The inner clamping ring locking type anti-loosening nut according to claim 5, characterized in that: The semicircular head (9) is located on one side of the arc-shaped limiting groove (7).

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