A dust-proof and rust-proof nut for a wheel and a production process thereof

Abstract

The application provides a dustproof and rustproof nut for a wheel and a production process thereof, and relates to the technical field of nuts. The dustproof and rustproof nut for the wheel comprises a bottom block and a nut cap, the top middle part of the bottom block is fixedly connected to the bottom end of a connecting rod, the bottom end of the outer side of the connecting rod is fixedly connected with a sleeve, the inner middle upper part of the connecting rod is provided with a first cavity, and the bottom middle part of the first cavity is fixedly connected to the bottom end of an inner cylindrical tube. The tooth trace rotating direction of the first clamping tooth is opposite to that of the second clamping tooth, the tooth trace rotating direction of the second clamping tooth is the same as the rotating direction of the nut cap, the nut cap can only rotate towards the fastening direction and cannot rotate reversely when the second clamping tooth is engaged with the first clamping tooth, and the nut cap can only rotate towards the fastening direction and cannot rotate reversely by cooperating with the spring, so that the effect of preventing the nut cap from loosening and falling off is achieved. The rustproof solution is prepared by mixing sodium nitrite, sodium carbonate and water in a certain proportion, the rustproof solution is sprayed on the surface of the nut to form a plating layer, and the dustproof and rustproof effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuts, in particular to a dustproof and rustproof nut for vehicle wheels and a production process thereof. BACKGROUND

[0002] As fasteners, bolts and nuts play a very important role in the development of production and are widely used in various industries such as railways, bridges, power, road administration, mechanical equipment, and mining.

[0003] At present, the nuts used for vehicle wheels do not have a structure for preventing loosening and falling off. Once the nut of a vehicle wheel loosens during driving, it will encounter a huge shearing force, and the vehicle wheel will swing and cannot be controlled in the normal direction, causing traffic accidents. Moreover, most nuts are exposed to the outside for a long time, are blown by wind and rained on, and are quickly oxidized to cause rust, which not only affects the strength of the nut but also makes the nut difficult to disassemble and hard to maintain. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present application provides a dustproof and rustproof nut for vehicle wheels and a production process thereof, which solves the problems that the nut used for vehicle wheels does not have a structure for preventing loosening and that the nut is prone to rust and difficult to disassemble.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: A dustproof and rustproof nut for a vehicle wheel, comprising a bottom block and a nut cap, the top middle part of the bottom block is fixedly connected to the bottom end of a connecting rod, the outer bottom end of the connecting rod is fixedly connected with a sleeve, the inner middle upper part of the connecting rod is provided with a first cavity, the bottom middle part of the first cavity is fixedly connected to the bottom end of an inner cylindrical tube, four slide grooves are equidistantly arranged around the outer side of the inner cylindrical tube, a connecting disc is slidably connected inside the inner cylindrical tube, a top ring disc is arranged on the outer side of the inner cylindrical tube, a plurality of first clamping teeth are uniformly distributed on the top end of the top ring disc, one end of the connecting disc is fixedly connected to a slide block, the other end of the slide block is fixedly connected to the inner side of the top ring disc, a spring is arranged on the outer side of the inner cylindrical tube, one end of the spring is fixedly connected to the bottom side of the top ring disc, the other end of the spring is fixedly connected to the bottom end of the first cavity, a first threaded tooth groove is arranged on the outer top end of the connecting rod, a threaded neck is fixedly connected to the top middle part of the nut cap, a top cover is threadedly connected to the outer side of the threaded neck, a second threaded groove is arranged in the middle part of the bottom end of the nut cap, the top middle part of the second threaded groove is fixedly connected to the top end of an inner core tube, the top end of the inner core tube sequentially penetrates the middle part of the nut cap and the threaded neck, a plurality of second clamping teeth are uniformly distributed on the bottom end of the inner core tube, the connecting rod is threadedly connected to the threaded groove of the nut cap through the first threaded tooth groove, and a rust-proof plating layer is arranged on the bottom block, the sleeve, the fin, the connecting rod, the nut cap and the top cover.

[0008] Preferably, the diameter of the inner core tube is greater than that of the inner cylindrical tube and smaller than that of the first cavity, and the first clamping teeth are engaged with the second clamping teeth.

[0009] Preferably, a plurality of fins are equidistantly fixedly connected to the outer side of the sleeve.

[0010] Preferably, the slide blocks are slidably connected to the corresponding slide grooves.

[0011] Preferably, a plurality of anti-skid grooves are equidistantly arranged on the outer side of the top cover.

[0012] Preferably, the rust-proof plating layer comprises sodium nitrite, sodium carbonate and water.

[0013] Preferably, the tooth marks of the first clamping teeth and the second clamping teeth rotate in opposite directions, and the tooth marks of the second clamping teeth rotate in the same direction as the nut cap.

[0014] Preferably, a production process of the dustproof and rustproof nut for the vehicle wheel comprises the following steps:

[0015] S1. First, the bottom block, sleeve, fin and connecting rod are integrally forged into shape, then a first threaded tooth groove is formed on the outer side upper part of the connecting rod, while threaded tooth grooves are formed on the inner side of the top cover and the outer side of the threaded neck, and a first cavity is formed on the inner side of the connecting rod;

[0016] S2. Four slide grooves are cut equidistantly on the inner cylindrical pipe, then the bottom end of the processed inner cylindrical pipe is welded in the middle of the bottom end of the first cavity, and the spring is sleeved on the inner cylindrical pipe;

[0017] S3. The first clamping tooth, top ring disc, sliding block and connecting disc are integrally forged into shape, then the top ring disc is placed in the first cavity at the upper end of the spring, while the connecting disc is located in the inner cylindrical pipe to slide, and the sliding block slides in the corresponding slide groove;

[0018] S4. The inner core pipe and the second clamping tooth are integrally cast into shape, then a threaded groove is formed in the middle of the bottom end of the nut cap, the top end of the nut cap is welded with the threaded neck, and the middle part of the nut cap and the threaded neck is drilled by using a drilling tool, and finally the upper end of the inner core pipe is welded in the drilling hole, so that the top end of the inner core pipe is flush with the upper end of the threaded neck;

[0019] S5. The nut cap is threadedly connected to the upper end of the connecting rod, and the top cover is threadedly connected to the threaded neck, and the assembly is completed;

[0020] S6. Sodium nitrite, sodium carbonate and water are mixed and stirred in a ratio of 12-15:1-2:80-85, until the sodium nitrite and sodium carbonate are completely melted, then stand for 7-8h, prepare the anti-rust solution, evenly spray the anti-rust solution on the surface of the bottom block, sleeve, fin, connecting rod, nut cap and top cover, and then air dry at room temperature.

[0021] Working principle: the first clamping tooth on the top ring disc and the second clamping tooth at the bottom end of the inner core pipe are clamped to prevent loosening and falling off, when the nut cap is threadedly connected with the connecting rod, the inner core pipe is inserted into the first cavity, and the second clamping tooth is pressed down on the first clamping tooth while rotating with the nut cap, because the tooth marks of the first clamping tooth and the second clamping tooth rotate in opposite directions, and the tooth marks of the second clamping tooth rotate in the same direction as the nut cap, therefore the second clamping tooth can rotate on the first clamping tooth when the nut cap is tightened, at this time the upward reaction force of the spring presses the first clamping tooth, so that the second clamping tooth cannot rotate reversely on the first clamping tooth, thus achieving the effect of preventing the nut cap from loosening and falling off, when the nut cap needs to be loosened, the top cover is opened and the screwdriver is inserted into the inner core pipe to press down the connecting disc, so that the first clamping tooth on the top ring disc and the second clamping tooth are separated, so that the wrench can be normally used to loosen the nut cap.

[0022] (Three) beneficial effects

[0023] The application provides a dustproof and rustproof nut for a vehicle wheel and a production process thereof.

[0024] 1、The first clamping tooth on the top ring disc and the second clamping tooth at the bottom end of the inner core tube are clamped to achieve anti-loosening and anti-falling, when the nut cap is threadedly connected with the connecting rod, the inner core tube is inserted into the first cavity, the second clamping tooth is pressed down the first clamping tooth while rotating with the nut cap, since the tooth marks of the first clamping tooth and the second clamping tooth are opposite in rotation direction, the rotation direction of the tooth marks of the second clamping tooth is the same as that of the nut cap, therefore, the second clamping tooth can rotate on the first clamping tooth when the nut cap is fastened and rotated, at this time, the upward reaction force of the compressed spring pushes the first clamping tooth, so that the second clamping tooth cannot be reversely rotated on the first clamping tooth, thereby achieving the effect of preventing the nut cap from loosening and falling off.

[0025] 2、The anti-rust solution is prepared by mixing sodium nitrite, sodium carbonate and water in proportion and stirring until the sodium nitrite and the sodium carbonate are completely melted, the anti-rust solution is sprayed on the surface of the nut, and after natural drying, a plating layer is formed on the surface of the nut, so that the effect of dustproof and rust prevention can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0027] Figure 2 It is a schematic diagram of the split structure of the present application;

[0028] Figure 3 It is a schematic diagram of the bottom structure of the nut cap of the present application;

[0029] Figure 4 It is a schematic diagram of the top structure of the connecting rod of the present application;

[0030] Figure 5 It is a schematic diagram of the installation effect of the inner cylindrical tube of the present application;

[0031] Figure 6 It is a schematic diagram of the anti-rust plating layer of the present application.

[0032] Among them, 1, bottom block; 2, sleeve; 3, fin edge; 4, connecting rod; 5, nut cap; 6, top cover; 7, anti-skid groove; 8, first thread tooth groove; 9, first cavity; 10, inner cylindrical tube; 11, top ring disc; 12, first clamping tooth; 13, spring; 14, inner core tube; 15, threaded neck; 16, second clamping tooth; 17, thread groove; 18, sliding groove; 19, sliding block; 20, connecting disc; 21, anti-rust plating layer. DETAILED DESCRIPTION

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] like Figures 1-6 As shown, this embodiment of the invention provides a dustproof and rustproof nut for wheels, including a base block 1 and a nut cap 5. The top center of the base block 1 is fixedly connected to the bottom end of a connecting rod 4. A sleeve 2 is fixedly connected to the bottom outer side of the connecting rod 4. A first cavity 9 is provided in the upper middle part of the inner side of the connecting rod 4. The bottom center of the first cavity 9 is fixedly connected to the bottom end of an inner cylindrical tube 10. Four sliding grooves 18 are equidistantly arranged around the outer periphery of the inner cylindrical tube 10. A connecting disc 20 is slidably connected inside the inner cylindrical tube 10. A top ring plate 11 is provided on the outer side of the inner cylindrical tube 10. Several first retaining teeth 12 are evenly distributed on the top of the top ring plate 11. The connecting disc 20 is equidistantly fixedly connected to one end of a slider 19 around its periphery. The other end of the slider 19 is equidistantly fixedly connected to the inner side of the top ring plate 11. A spring 1 is provided on the outer side of the inner cylindrical tube 10. 3. One end of the spring 13 is fixedly connected to the bottom side of the top ring plate 11, and the other end of the spring 13 is fixedly connected to the bottom end of the first cavity 9. The upper outer side of the connecting rod 4 is provided with a first threaded groove 8. The top center of the nut cap 5 is fixedly connected with a threaded neck 15. The outer side of the threaded neck 15 is threadedly connected with a top cover 6. The bottom center of the nut cap 5 is provided with a second threaded groove 17. The top center of the second threaded groove 17 is fixedly connected to the top of the inner core tube 14. The top of the inner core tube 14 passes through the middle of the nut cap 5 and the threaded neck 15 in sequence. Several second locking teeth 16 are evenly distributed at the bottom of the inner core tube 14. The top outer side of the connecting rod 4 is threadedly connected to the threaded groove 17 of the nut cap 5 through the first threaded groove 8. The bottom block 1, sleeve 2, wing 3, connecting rod 4, nut cap 5 and top cover 6 are all provided with an anti-rust coating 21.

[0036] The diameter of the inner core tube 14 is greater than that of the inner cylindrical tube 10 but less than that of the first cavity 9, and the first locking tooth 12 engages with the second locking tooth 16.

[0037] The first clamping tooth 12 on the top ring disc 11 is clamped with the second clamping tooth 16 at the bottom end of the inner core tube 14 to prevent loosening and falling off. When the nut cap 5 is screwed with the connecting rod 4, the inner core tube 14 is inserted into the first cavity 9, and the second clamping tooth 16 is pressed down the first clamping tooth 12 while rotating with the nut cap 5. Since the tooth trace rotation direction of the first clamping tooth 12 is opposite to that of the second clamping tooth 16, and the tooth trace rotation direction of the second clamping tooth 16 is the same as the rotation direction of the nut cap 5, the second clamping tooth 16 can rotate on the first clamping tooth 12 when the nut cap 5 is tightened. At this time, the upward reaction force of the compressed spring 13 pushes the first clamping tooth 12, so that the second clamping tooth 16 cannot be reversely rotated on the first clamping tooth 12, thereby achieving the effect of preventing the nut cap 5 from loosening and falling off. When the nut cap 5 needs to be loosened, the top cover 6 is opened, the screwdriver is inserted into the inner core tube 14, and the connecting disc 20 is pressed down, so that the first clamping tooth 12 on the top ring disc 11 is separated from the second clamping tooth 16. The wrench can be used to loosen the nut cap 5 normally.

[0038] The outer side of the sleeve 2 is fixedly connected with a plurality of fin edges 3 at equal intervals, which plays a role in preventing slipping in the fixed hole of the hub.

[0039] The sliding blocks 19 are slidably connected with the corresponding sliding grooves 18, and the sliding blocks 19 can slide up and down in the sliding grooves 18 and limit the rotation of the top ring disc 11.

[0040] The outer side of the top cover 6 is provided with a plurality of anti-skid grooves 7 at equal intervals, which facilitates the rotation of the top cover 6.

[0041] The composition of the anti-rust plating layer 21 includes sodium nitrite, sodium carbonate and water. The anti-rust solution is prepared by mixing and stirring sodium nitrite, sodium carbonate and water in proportion until the sodium nitrite and sodium carbonate are completely melted. The anti-rust solution is sprayed on the surface of the nut, and after natural drying, a plating layer is formed on the surface of the nut, which can play a role in preventing dust and rust.

[0042] The tooth trace rotation direction of the first clamping tooth 12 is opposite to that of the second clamping tooth 16, and the tooth trace rotation direction of the second clamping tooth 16 is the same as the rotation direction of the nut cap 5. When the second clamping tooth 16 is clamped with the first clamping tooth 12, the spring 13 is matched to allow the nut cap 5 to rotate only in the tightening direction.

[0043] A production process for a dustproof and rustproof nut for a wheel, comprising the following steps:

[0044] S1. First, the bottom block 1, the sleeve 2, the fin edge 3 and the connecting rod 4 are integrally forged and formed, then a first thread groove 8 is formed on the outer side of the upper part of the connecting rod 4, at the same time, thread grooves are formed on the inner side of the top cover 6 and the outer side of the threaded neck 15, and a first cavity 9 is formed on the inner side of the middle and upper part of the connecting rod 4;

[0045] S2. Four grooves 18 are cut equidistantly on the inner cylindrical tube 10, and the bottom end of the processed inner cylindrical tube 10 is welded in the middle of the bottom end of the first cavity 9, and then the spring 13 is sleeved on the inner cylindrical tube 10;

[0046] S3. The first tooth 12, the top ring disc 11, the sliding block 19 and the connecting disc 20 are integrally forged and formed, and then the top ring disc 11 is placed in the first cavity 9 and located at the upper end of the spring 13, and the connecting disc 20 is located in the inner cylindrical tube 10 and slides, and the sliding block 19 slides in the corresponding groove 18;

[0047] S4. The inner core tube 14 and the second tooth 16 are integrally cast, a threaded groove 17 is formed in the middle of the bottom end of the nut cap 5, the top end of the nut cap 5 is welded with the threaded neck 15, and the middle of the nut cap 5 and the threaded neck 15 is drilled by using a drilling tool, and finally the upper end of the inner core tube 14 is welded in the drilled hole, so that the top end of the inner core tube 14 is flush with the upper end of the threaded neck 15;

[0048] S5. The nut cap 5 is threadedly connected to the upper end of the connecting rod 4, and the top cover 6 is threadedly connected to the threaded neck 15, and the assembly is completed;

[0049] S6. Sodium nitrite, sodium carbonate and water are mixed and stirred in a ratio of 12:1:80 until the sodium nitrite and sodium carbonate are completely melted, and then left to stand for 7h to prepare a rust-proof solution, which is uniformly sprayed on the surfaces of the bottom block 1, the sleeve 2, the fin 3, the connecting rod 4, the nut cap 5 and the top cover 6, and then naturally air-dried at room temperature.

[0050] Example Two:

[0051] In the above step S6, sodium nitrite, sodium carbonate and water are mixed and stirred in a ratio of 15:2:85 until the sodium nitrite and sodium carbonate are completely melted, and then left to stand for 8h to prepare a rust-proof solution, which is uniformly sprayed on the surfaces of the bottom block 1, the sleeve 2, the fin 3, the connecting rod 4, the nut cap 5 and the top cover 6, and then naturally air-dried at room temperature.

[0052] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dust-proof and rust-proof nut for a wheel, comprising a base block (1) and a nut cap (5), characterized in that: The top middle of the bottom block (1) is fixedly connected to the bottom end of the connecting rod (4), the outside bottom end of the connecting rod (4) is fixedly connected with the sleeve (2), the inside middle upper part of the connecting rod (4) is provided with the first cavity (9), the bottom middle of the first cavity (9) is fixedly connected to the bottom end of the inner cylindrical pipe (10), the outside four around of the inner cylindrical pipe (10) is provided with four sliding grooves (18), the inside of the inner cylindrical pipe (10) is slidably connected with the connecting disc (20), the outside of the inner cylindrical pipe (10) is provided with the top ring disc (11), the top end of the top ring disc (11) is uniformly distributed with a plurality of first clamping teeth (12), the four around of the connecting disc (20) is fixedly connected to one end of the sliding block (19), the other end of the sliding block (19) is respectively fixedly connected to the inside of the top ring disc (11), the outside of the inner cylindrical pipe (10) is provided with the spring (13), one end of the spring (13) is fixedly connected to the bottom side of the top ring disc (11), the other end of the spring (13) is fixedly connected to the bottom end of the first cavity (9), the outside upper end of the connecting rod (4) is provided with the first threaded tooth groove (8), the top middle of the nut cap (5) is fixedly connected with the threaded neck (15), the outside of the threaded neck (15) is threadedly connected with the top cover (6), the bottom middle of the nut cap (5) is provided with the second threaded groove (17), the top middle of the second threaded groove (17) is fixedly connected to the top end of the inner core pipe (14), and the top end of the inner core pipe (14) penetrates the middle of the nut cap (5) and the threaded neck (15) in sequence, the bottom end of the inner core pipe (14) is uniformly distributed with a plurality of second clamping teeth (16), the outside top end of the connecting rod (4) is threadedly connected with the threaded groove (17) of the nut cap (5) through the first threaded tooth groove (8), the bottom block (1), the sleeve (2), the fin (3) and the connecting rod (4), the nut cap (5) and the top cover (6) are all provided with the rust-proof plating layer (21), the diameter of the inner core pipe (14) is greater than that of the inner cylindrical pipe (10) and less than that of the first cavity (9), the first clamping teeth (12) are clamped with the second clamping teeth (16), the outside four around of the sleeve (2) is fixedly connected with a plurality of fins (3), the sliding block (19) is slidably connected with the corresponding sliding groove (18), the outside of the top cover (6) is provided with a plurality of anti-skid grooves (7), the composition of the rust-proof plating layer (21) includes sodium nitrite, sodium carbonate and water, the tooth marks of the first clamping teeth (12) and the second clamping teeth (16) rotate in opposite directions, and the tooth marks of the second clamping teeth (16) rotate in the same direction as the rotating direction of the nut cap (5).

2. A process for producing a dust-proof and rust-proof nut for a wheel according to claim 1, characterized in that: It comprises the following steps: S1. First, the bottom block (1), the sleeve (2), the fin (3) and the connecting rod (4) are integrally forged into shape, then the first threaded tooth groove (8) is opened on the outside upper part of the connecting rod (4), at the same time, the threaded tooth grooves are opened on the inside four around of the top cover (6) and the outside four around of the threaded neck (15), and the first cavity (9) is opened on the inside middle upper part of the connecting rod (4); S2. Four grooves (18) are cut equidistantly on the inner cylindrical tube (10), and the bottom end of the processed inner cylindrical tube (10) is welded in the middle of the bottom end of the first cavity (9), then the spring (13) is sleeved on the inner cylindrical tube (10); S3. The first tooth (12), the top ring disc (11), the sliding block (19) and the connecting disc (20) are integrally forged and formed, then the top ring disc (11) is placed in the first cavity (9) and placed on the upper end of the spring (13), and the connecting disc (20) is located in the inner cylindrical tube (10) and slides, and the sliding block (19) slides in the corresponding groove (18); S4. The inner core tube (14) and the second tooth (16) are integrally cast, then a threaded groove (17) is formed in the middle of the bottom end of the nut cap (5), a threaded neck (15) is welded in the middle of the top end of the nut cap (5), and a drilling tool is used to drill through the middle of the nut cap (5) and the threaded neck (15), and finally the upper end of the inner core tube (14) is welded in the drilling hole, so that the top end of the inner core tube (14) is flush with the upper end of the threaded neck (15); S5. The nut cap (5) is threadedly connected to the upper end of the connecting rod (4), and the top cover (6) is threadedly connected to the threaded neck (15), and the assembly is completed; S6. Sodium nitrite, sodium carbonate and water are mixed and stirred in a ratio of (12-15):(1-2):(80-85), until the sodium nitrite and sodium carbonate are completely melted, then stand for 7-8h, prepare the anti-rust solution, evenly spray the anti-rust solution on the surface of the bottom block (1), sleeve (2), fin (3), connecting rod (4), nut cap (5) and top cover (6), and then dry naturally at room temperature. ​

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