Anti-theft and anti-corrosion nut

Abstract

The utility model relates to the technical field of nuts, and discloses an anti-theft and anti-corrosion nut which comprises a nut body, an anti-theft sleeve is rotationally arranged on the outer side of the nut body in a sleeving mode, a limiting partition plate is fixed to the outer surface of the lower portion of the nut body, and a limiting top plate is fixed to the inner wall, above the limiting partition plate, of the anti-theft sleeve. A plurality of limiting bottom plates are fixed on the inner wall of the anti-theft sleeve below the limiting partition plate at equal intervals, a plurality of clamping grooves matched with the limiting bottom plates are formed in the outer side of the limiting partition plate at equal intervals, and limiting sliding blocks are symmetrically arranged in each limiting bottom plate in a sliding mode. The nut body is protected, meanwhile, the nut body can be prevented from being screwed by a stealer, the difficulty of the nut in the stealer screwing process is increased, the problems that an existing nut is prone to being stealthily screwed and prone to being affected with damp and rusting after being fixed are solved, meanwhile, the service life of the nut is greatly prolonged, and the nut is firmer and safer after being fixed.

Description

Technical Field

[0001] The utility model application relates to the technical field of nuts, in particular to an anti-theft and anti-corrosion nut. Background Art

[0002] A nut is a part that is screwed together with a bolt or screw for tightening. It is also a part used to tightly connect mechanical equipment. Nuts and bolts of the same specifications can be connected together through the inner thread. It uses the friction between the nut and the bolt for self-locking.

[0003] After the existing nut is screwed onto the screw or bolt, its polygonal edge means that after it is fixed, it can be twisted and separated by writing on the blackboard of corresponding specifications, resulting in poor safety and stability of the nut after fixation. Moreover, after the nut is tightened, a gap is left at the threaded interface between its port and the bolt or screw, and water stains can easily enter the gap. After long-term use, it is easy to cause the screw and nut to corrode and rust, affecting the service life of the nut, or making the nut and the screw unable to be separated. Summary of the invention

[0004] In order to solve the problems that the existing nuts are easily stolen and twisted after being fixed and are easily affected by moisture and rusted, the utility model provides an anti-theft and anti-corrosion nut to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-theft and anti-corrosion nut comprises a nut body, an anti-theft sleeve is provided on the outer rotating sleeve of the nut body, a limiting partition is fixed to the outer surface of the lower part of the nut body, and a limiting top plate is fixed on the inner wall of the anti-theft sleeve above the limiting partition, a plurality of limiting bottom plates are fixed at equal intervals on the inner wall of the anti-theft sleeve below the limiting partition, a plurality of engaging grooves cooperating with the limiting bottom plates are provided at equal intervals on the outer side of the limiting partition, a limiting slider is symmetrically slidably arranged inside each of the limiting bottom plates, and a spring is fixed between each group of two limiting sliders.

[0007] Furthermore, the nut body includes a carbon steel layer, a stainless steel anti-corrosion layer is fixedly arranged on the outer side of the carbon steel layer, a titanium alloy reinforcement layer is fixedly arranged on the inner side of the carbon steel layer, and an aluminum alloy anti-corrosion layer is wrapped and fixedly arranged on the inner side of the titanium alloy reinforcement layer, and the inner side of the aluminum alloy anti-corrosion layer and the outer surface of the stainless steel anti-corrosion layer are wrapped and coated with an anti-corrosion coating.

[0008] Furthermore, a sealing rubber sleeve is fixed on the top of the nut body, and the inner ring diameter of the sealing rubber sleeve is equal to the inner ring diameter of the nut body. The outer corner of the top of the sealing rubber sleeve is set to an arc shape, and the inner ring diameter of the top of the anti-theft sleeve is equal to the outer ring diameter of the sealing rubber sleeve.

[0009] Furthermore, the inner side of the limiting partition is configured to be a hexagonal shape that matches the outer surface of the nut body, and the outer ring diameter of the limiting partition is smaller than the inner side diameter of the anti-theft sleeve corresponding to the limiting partition.

[0010] Furthermore, the thickness between the bottom surface of the limiting top plate and the top surface of the limiting bottom plate is greater than the thickness of the limiting partition, and the inner circle diameter of the limiting top plate is smaller than the outer circle diameter of the limiting partition.

[0011] Furthermore, an inner slider is fixed on the inner side of each of the limit sliders, and the inner slider is slidably arranged inside the limit bottom plate, and a sliding groove cooperating with the inner slider is opened on the inner side of each of the limit bottom plates.

[0012] Furthermore, each of the limit sliding blocks extending to the outer bottom of the limit bottom plate is configured to be inclined upward, and the limit bottom plate, the limit sliding block and the inner sliding block are all configured to be in an arc shape that matches the inside of the anti-theft sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the rotatable anti-theft sleeve on the outside can protect the nut body while preventing the thief from twisting the nut body, thereby increasing the difficulty of the nut being twisted illegally and solving the problem that the existing nut is easily twisted illegally and easily gets damp and rusted after being fixed. At the same time, the service life of the nut is greatly improved, and the nut is more firm and safer after being fixed.

[0015] 2. In the utility model, the combined reinforcement structure makes the nut body have stronger hardness and corrosion resistance, and the anti-corrosion coating on the inside and outside further avoids the possibility of corrosion of the nut body. At the same time, the sealing rubber sleeve on the top can prevent water stains and other contaminants from entering the inside of the nut body, thereby preventing the nut body from being unable to be twisted due to corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 is a front view schematic diagram of a nut structure according to an embodiment of the present application;

[0018] Figure 2 yes Figure 1 A bottom view schematic diagram of the nut structure in the illustrated embodiment;

[0019] Figure 3 yes Figure 1 A schematic front view of the main structure of the nut in the embodiment shown;

[0020] Figure 4 yes Figure 1 A bottom view schematic diagram of the anti-theft sleeve structure in the illustrated embodiment;

[0021] Figure 5 yes Figure 1 A schematic front cross-sectional view of the nut structure in the illustrated embodiment;

[0022] Figure 6 yes Figure 1 A schematic cross-sectional view of the nut main body structure in the illustrated embodiment.

[0023] The meanings of the reference numerals in the figure are: 1. Nut body; 111. Carbon steel layer; 112. Titanium alloy reinforcement layer; 113. Aluminum alloy anti-corrosion layer; 114. Stainless steel anti-corrosion layer; 115. Anti-corrosion coating; 2. Sealing rubber sleeve; 3. Limiting partition; 4. Anti-theft sleeve; 5. Limiting top plate; 6. Limiting bottom plate; 7. Engaging groove; 8. Limiting slider; 9. Spring; 10. Inner slider. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6A theft-proof and anti-corrosion nut comprises a nut body 1, the nut body 1 comprises a carbon steel layer 111, a stainless steel anti-corrosion layer 114 is fixedly arranged on the outside of the carbon steel layer 111, a titanium alloy reinforcement layer 112 is fixedly arranged on the inside of the carbon steel layer 111, and an aluminum alloy anti-corrosion layer 113 is wrapped and fixedly arranged on the inside of the titanium alloy reinforcement layer 112, the inner side of the aluminum alloy anti-corrosion layer 113 and the outer surface of the stainless steel anti-corrosion layer 114 are wrapped and coated with an anti-corrosion coating 115, an anti-theft sleeve 4 is provided on the outer rotating sleeve of the nut body 1, a limiting partition 3 is fixed on the lower outer surface of the nut body 1, and the inner side of the limiting partition 3 is set to a hexagonal shape matching the outer surface of the nut body 1, and the limiting The outer circle diameter of the positioning partition 3 is smaller than the diameter of the inner side of the anti-theft sleeve 4 corresponding to the positioning partition 3, and a limiting top plate 5 is fixed on the inner wall of the anti-theft sleeve 4 above the limiting partition 3, the thickness between the bottom surface of the limiting top plate 5 and the top surface of the limiting bottom plate 6 is greater than the thickness of the limiting partition 3, the inner circle diameter of the limiting top plate 5 is smaller than the outer circle diameter of the limiting partition 3, and a number of limiting bottom plates 6 are equidistantly fixed on the inner wall of the anti-theft sleeve 4 below the limiting partition 3, and a number of engaging grooves 7 cooperating with the limiting bottom plate 6 are equidistantly provided on the outer side of the limiting partition 3, and a limiting slider 8 is symmetrically slidingly arranged inside each limiting bottom plate 6, and a spring 9 is fixed between each group of two limiting sliders 8.

[0026] Specifically, when the nut body 1 needs to be used, the nut body 1 is first screwed onto the screw or bolt. After screwing, the anti-theft sleeve 4 is sleeved on the nut body 1. When sleeved, the limiting bottom plate 6 is aligned with the engaging groove 7. After alignment, the anti-theft sleeve 4 is continued to be pushed so that the limiting sliders 8 are squeezed on both sides of the engaging groove 7, so that the limiting sliders 8 compress the spring 9 and move into the limiting bottom plate 6, so that the limiting bottom plate 6 can pass over the limiting partition 3, and then the anti-theft sleeve 4 is rotated so that the limiting bottom plate 6 and the engaging groove 7 are in a closed position. The nut 4 is dislocated and, under the limiting action of the limiting slider 8, is limited by the limiting top plate 5 on the top, so that the anti-theft sleeve 4 can only rotate on the outside of the nut body 1, and will not drive the nut body 1 to rotate. When disassembling, a thin rod is inserted into the gap caused by the height difference between the bottom of the anti-theft sleeve 4 and the bottom surface of the nut body 1, and the limiting slider 8 is squeezed through the thin rod. While squeezing, the anti-theft sleeve 4 is pulled upward, so that the limiting bottom plate 6 passes through the engaging groove 7, and the anti-theft sleeve 4 can be separated from the nut body 1.

[0027] As an optimization solution, Figure 4 , Figure 3 and Figure 5As shown, a sealing rubber sleeve 2 is fixed on the top of the nut body 1, and the inner ring diameter of the sealing rubber sleeve 2 is equal to the inner ring diameter of the nut body 1, the outer corner of the top of the sealing rubber sleeve 2 is set to an arc shape, and the inner ring diameter of the top of the anti-theft sleeve 4 is equal to the outer ring diameter of the sealing rubber sleeve 2, and an inner slider 10 is fixed on the inner side of each limiting slider 8, and the inner slider 10 is slidably set inside the limiting bottom plate 6, and a sliding groove cooperating with the inner slider 10 is opened on the inner side of each limiting bottom plate 6, and each limiting slider 8 is extended to the outer bottom of the limiting bottom plate 6 and is set to be inclined upward, and the limiting bottom plate 6, the limiting slider 8 and the inner slider 10 are all set to an arc shape cooperating with the inside of the anti-theft sleeve 4.

[0028] Specifically, when the nut body 1 is screwed onto the screw or bolt, the sealing rubber sleeve 2 is driven to fit onto the screw or bolt, and then when the anti-theft sleeve 4 is put on the nut body 1, the ring at the top of the anti-theft sleeve 4 squeezes the sealing rubber sleeve 2, so that the sealing rubber sleeve 2 can better fit the screw or bolt. At the same time, when the limit slider 8 slides inside the limit bottom plate 6, it drives the inner slider 10 to move inside the slide groove to prevent the limit slider 8 from separating from the limit bottom plate 6.

[0029] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An anti-theft and anti-corrosion nut, comprising a nut body (1), Features: An anti-theft sleeve (4) is rotatably sleeved on the outer side of the nut body (1); a limiting partition (3) is fixed on the outer surface of the lower part of the nut body (1); a limiting top plate (5) is fixed on the inner wall of the anti-theft sleeve (4) above the limiting partition (3); a plurality of limiting bottom plates (6) are equidistantly fixed on the inner wall of the anti-theft sleeve (4) below the limiting partition (3); a plurality of engaging grooves (7) cooperating with the limiting bottom plates (6) are equidistantly provided on the outer side of the limiting partition (3); a limiting slider (8) is symmetrically slidably arranged inside each limiting bottom plate (6); a spring (9) is fixed between each group of two limiting sliders (8).

2. The anti-theft and anti-corrosion nut according to claim 1, Features: The nut body (1) comprises a carbon steel layer (111), a stainless steel anti-corrosion layer (114) is fixedly arranged on the outer side of the carbon steel layer (111), a titanium alloy reinforcement layer (112) is fixedly arranged on the inner side of the carbon steel layer (111), and an aluminum alloy anti-corrosion layer (113) is wrapped and fixedly arranged on the inner side of the titanium alloy reinforcement layer (112), and the inner side of the aluminum alloy anti-corrosion layer (113) and the outer surface of the stainless steel anti-corrosion layer (114) are wrapped and coated with an anti-corrosion coating (115).

3. The anti-theft and anti-corrosion nut according to claim 1, Features: A sealing rubber sleeve (2) is fixed on the top of the nut body (1), and the inner diameter of the sealing rubber sleeve (2) is equal to the inner diameter of the nut body (1). The outer corner of the top of the sealing rubber sleeve (2) is arranged in an arc shape, and the inner diameter of the top of the anti-theft sleeve (4) is equal to the outer diameter of the sealing rubber sleeve (2).

4. The anti-theft and anti-corrosion nut according to claim 1, Features: The inner side of the limiting partition (3) is configured as a hexagonal shape that matches the outer surface of the nut body (1), and the outer ring diameter of the limiting partition (3) is smaller than the inner diameter of the anti-theft sleeve (4) corresponding to the limiting partition (3).

5. The anti-theft and anti-corrosion nut according to claim 1, Features: The thickness between the bottom surface of the limiting top plate (5) and the top surface of the limiting bottom plate (6) is greater than the thickness of the limiting partition (3), and the inner circle diameter of the limiting top plate (5) is smaller than the outer circle diameter of the limiting partition (3).

6. The anti-theft and anti-corrosion nut according to claim 1, Features: An inner slider (10) is fixed on the inner side of each of the limit sliders (8), and the inner slider (10) is slidably arranged inside the limit bottom plate (6), and a sliding groove cooperating with the inner slider (10) is opened on the inner side of each of the limit bottom plates (6).

7. The anti-theft and anti-corrosion nut according to claim 6, Features: Each of the limit sliders (8) extending to the outer bottom of the limit base plate (6) is configured to be inclined upward, and the limit base plate (6), the limit slider (8) and the inner slider (10) are all configured to be in an arc shape that matches the inside of the anti-theft sleeve (4).

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