Anti-theft nut

Abstract

The utility model relates to the field of anti-theft nuts, and discloses an anti-theft nut which comprises a nut body. The fastener is arranged on the lower side of the nut body; wherein the nut body is a cylinder with a smooth surface, and a groove is formed in the lower end of the nut body. The groove is formed in the nut body, the first internal thread is arranged on the inner wall of the groove, the external thread meshed with the first internal thread is arranged on the outer wall of the fastener, and the fastener can be fixed in the groove of the nut body through mutual meshing of the external thread and the first internal thread; the anti-theft effect of the nut body is achieved. According to the anti-theft nut, the problems that due to the fact that a nut of an existing device is of a hexagonal structure, an anti-theft nut body can still be twisted and detached from a stud or a bolt through a torque wrench, a locking piece is exposed, and therefore the anti-theft effect of the anti-theft nut is poor, and safety is low are solved.

Description

Technical Field

[0001] The utility model belongs to the field of anti-theft nuts, in particular to an anti-theft nut. Background Art

[0002] A nut, also known as a nut, is a fixing tool with a hole in the center and threads on the inside of the hole. Nuts are often used in conjunction with screws of the same size to fix the relevant joint parts. If environmental factors such as vibration cause the nut to loosen, glue or pins and other tools can be used to further reinforce the relevant parts. Nuts are mostly hexagonal, followed by square. Most nuts in the prior art are used in conjunction with spring washers, cotter pins, etc., which are easy to loosen and have a poor anti-loosening effect. In addition, existing nuts are easily disassembled manually, and have a poor anti-theft effect.

[0003] The Chinese utility model patent with publication number CN218151927U discloses an anti-theft nut, comprising a nut body, characterized in that it also includes: a locking piece, which is arranged at the side end of the nut body and is used to lock the nut body after it is screwed in; wherein, the side wall of the nut body has an annular groove for the locking piece to be inserted into after being screwed in, providing an anti-theft nut with good self-locking function, simple processing technology and easy installation; the anti-theft nut realizes self-locking by inserting the locking piece into the annular groove after being screwed in, but the device still has some other problems. For example, due to the hexagonal structure of the nut, the anti-theft nut body can still be twisted and removed from the stud or bolt by a torque wrench, thereby exposing the locking piece, resulting in poor anti-theft effect and low safety of the anti-theft nut. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-theft nut to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the following technical solution is provided: an anti-theft nut, comprising:

[0006] Nut body; the nut body is a cylinder with a smooth surface, and a groove is provided at the lower end of the nut body;

[0007] A fastener, disposed inside the groove;

[0008] Wherein, a through hole is provided in the middle of the fastener.

[0009] In the above technical solution, further, the inner wall of the groove is provided with a first internal thread.

[0010] In any of the above technical solutions, further, the outer surface of the fastener is provided with an external thread, and the external thread is meshed with the first internal thread.

[0011] In any of the above technical solutions, further, a mounting groove is provided inside the nut body, the diameter of the mounting groove is the same as the diameter of the through hole, and a second internal thread is designed on the inner walls of the mounting groove and the through hole.

[0012] In any of the above technical solutions, further, a fixing hole is provided at one end of the fastener, the number of the fixing holes is set to be multiple, and the positions of the fixing holes are opened at different heights.

[0013] In any of the above technical solutions, further, the first internal thread is set to the same depth as the external thread, and the depth of the first internal thread is shallower than the groove.

[0014] The beneficial effects of the utility model are:

[0015] 1. A groove is provided inside the nut body, and a first internal thread is provided on the inner wall of the groove. An external thread meshing with the first internal thread is provided on the outer wall of the fastener. The external thread meshes with the first internal thread, so that the fastener can be fixed in the groove of the nut body. Because a mounting groove is also provided inside the groove of the nut body, and a second internal thread is provided on the inner wall of the mounting groove and the inner wall of the middle through hole of the fastener, the stud or bolt can be fixed between the nut body and the fastener through the second internal thread. The screw or bolt can be fixed into the interior of the nut body through the fixing hole on the fastener, and the fastener can be twisted into the interior of the nut body. Because the surface of the nut body is set as a smooth cylinder, it is not easy to separate the nut body from the screw or bolt, thereby realizing the anti-theft function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0018] Explanation of the reference numerals: 100, nut body; 110, groove; 111, first internal thread; 120, mounting groove; 121, second internal thread; 200, fastener; 210, external thread; 220, fixing hole; 230, through hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0020] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0021] Embodiment 1:

[0022] like Figure 1-Figure 2 As shown, this embodiment provides an anti-theft nut, including:

[0023] The nut body 100 is a cylindrical body with a smooth surface, and a groove 110 is provided at the lower end of the nut body 100;

[0024] The fastener 200 is disposed inside the groove 110;

[0025] A through hole 230 is formed in the middle of the fastener 200 .

[0026] In the present technical solution, in order to prevent the nut body 100 from loosening with the stud or bolt, the nut body 100 is set as a smooth cylinder, so as to prevent the nut body 100 from falling off from the stud or bolt by rotating the nut body 100. At the same time, a groove 110 is provided on one side of the nut body 100, and the position of the fastener 200 can be changed through the groove 110. The fastener 200 is arranged inside the groove 110, and the installation position can be changed inside the groove 110. A through hole 230 is provided in the middle of the fastener 200, and the through hole 230 can facilitate the installation of the stud or bolt into the nut body 100.

[0027] Embodiment 2:

[0028] This embodiment provides an anti-theft nut, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0029] like Figure 1-Figure 2 As shown, in this embodiment, the inner wall of the groove 110 is provided with a first internal thread 111 .

[0030] In the present technical solution, in order to facilitate the use of the nut body 100 and the fastener 200, a first internal thread 111 is provided on the inner wall of the internal groove 110 of the nut body 100, and the first thread can enable the fastener 200 to be connected to the nut body 100 to a certain depth.

[0031] Embodiment 3:

[0032] This embodiment provides an anti-theft nut, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0033] like Figure 1-Figure 2 As shown, in this embodiment, an outer surface of the fastener 200 is provided with an external thread 210 , and the external thread 210 is meshed with the first internal thread 111 .

[0034] In the present technical solution, in order to enable the fastener 200 to be well used in conjunction with the nut body 100, an external thread 210 is provided on the outer wall of the fastener 200, and the external thread 210 is meshed with the first internal thread 111 on the inner wall of the groove 110. The external thread 210 and the first internal thread 111 can be used to facilitate changing the depth of the connection between the fastener 200 and the nut body 100.

[0035] Embodiment 4:

[0036] This embodiment provides an anti-theft nut, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] like Figure 1-Figure 2 As shown, in this embodiment, a mounting groove 120 is further provided inside the nut body 100 , the diameter of the mounting groove 120 is the same as the diameter of the through hole 230 , and a second internal thread 121 is designed on the inner walls of the mounting groove 120 and the through hole 230 .

[0038] In the present technical solution, in order to facilitate the connection between the nut body 100 and the fastener 200 and the stud or bolt, a mounting groove 120 is further provided at the bottom of the internal groove 110 of the nut body 100. The diameter of the mounting groove 120 is the same as the diameter of the through hole 230 in the middle of the fastener 200. At the same time, a second internal thread 121 is provided on the inner wall of the mounting groove 120 and the through hole 230, and the stud or bolt can be fixed by a knob through the second thread. The bolt or stud is used in conjunction with the fastener 200 through the second thread inside the through hole 230, and then the top end of the bolt or stud is knob-connected with the second internal thread 121 inside the mounting groove 120 of the nut body 100. Through the connection between the fastener 200 and the bolt or stud, the connection between the fastener 200 and the stud or bolt is made, and the nut body 100 can be locked for a second time.

[0039] Embodiment 5:

[0040] This embodiment provides an anti-theft nut, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] like Figure 1-Figure 2 As shown, in this embodiment, a fixing hole 220 is provided at one end of the fastener 200, the number of the fixing holes 220 is set to be multiple, and the positions and heights of the fixing holes 220 are different.

[0042] In the present technical solution, in order to be able to install the fastener 200 into the nut body 100 and twist the stud or bolt into the second internal thread 121 at the same time, a fixing hole 220 is opened on the outer wall of the fastener 200, and the positions of every two fixing holes 220 are corresponding, and multiple groups are opened, and each group is arranged at a different height at the position of the fastener 200. The stud or bolt is fixed to the bottom end of the installation groove 120 through the second internal thread 121, and the fastener 200 is twisted with the stud or bolt through the second internal thread 121. When the fastener 200 is knobbed into the groove 110 inside the nut body 100, the position where the special wrench is connected to the fixing hole 220 in the fastener 200 is changed, so that the external thread 210 on the outer wall of the fastener 200 can be slowly knobbed into the first internal thread 111 inside the groove 110, so that the fastener 200 can be embedded in the interior of the nut body 100, thereby preventing the nut body 100 from being stolen.

[0043] Embodiment 6:

[0044] This embodiment provides an anti-theft nut, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] like Figure 1-Figure 2 As shown, in this embodiment, the first internal thread 111 is set to the same depth as the external thread 210 , and the depth of the first internal thread 111 is shallower than that of the groove 110 .

[0046] In the present technical solution, in order to facilitate the coordination between the fastener 200, the nut body 100 and the stud, the depth of the first internal thread 111 inside the groove 110 is set to be the same as the depth of the external thread 210 on the fastener 200, thereby ensuring the fixed connection between the fastener 200 and the nut body 100. In order to facilitate the opening and use of the fixing hole 220, the first internal thread 111 is opened shallower than the depth of the groove 110, and the external thread 210 of the fastener 200 is also set shallower than the depth of the groove 110, and the first internal thread 111 is opened at the bottom of the groove 110, and the external thread 210 is opened on the side of the fastener 200 close to the bottom of the groove 110.

[0047] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An anti-theft nut, characterized in that: include: A nut body (100); the nut body (100) is a cylinder with a smooth surface, and a groove (110) is provided at the lower end of the nut body (100); A fastener (200) is disposed inside the groove (110); Wherein, a through hole (230) is provided in the middle of the fastener (200).

2. The anti-theft nut according to claim 1, characterized in that: The inner wall of the groove (110) is provided with a first internal thread (111).

3. The anti-theft nut according to claim 2, characterized in that: The outer surface of the fastener (200) is provided with an external thread (210), and the external thread (210) is meshed with the first internal thread (111).

4. The anti-theft nut according to claim 1, characterized in that: The nut body (100) is also provided with a mounting groove (120) therein, the diameter of the mounting groove (120) being the same as the diameter of the through hole (230), and the inner walls of the mounting groove (120) and the through hole (230) are both provided with a second internal thread (121).

5. The anti-theft nut according to claim 1, characterized in that: One end of the fastener (200) is provided with a fixing hole (220), the number of the fixing holes (220) is set to be multiple, and the positions and heights of the fixing holes (220) are different.

6. The anti-theft nut according to claim 2, characterized in that: The first internal thread (111) is set to the same depth as the external thread (210), and the depth of the first internal thread (111) is shallower than that of the groove (110).

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