Stainless steel bolt and nut assembly

Abstract

The utility model relates to the technical field of bolts and nuts, and discloses a stainless steel bolt and nut assembly which comprises a bolt body and a nut body, the nut body is arranged on the bolt body in a threaded and sleeved mode, and an anti-loosening limiting mechanism is arranged between the telescopic nut body and the bolt body. The anti-loose limiting mechanism comprises a fixing ring, a positioning column, a top ring and a top sleeve, a connecting rod is fixedly connected between the fixing ring and the nut body, the positioning column penetrates through the fixing ring, a limiting sliding plate is fixedly installed on the inner wall of the fixing ring, and a limiting sliding groove is formed in the outer wall of the positioning column. The nut body can be limited and fixed when screwed in place, rotation of the nut body due to vibration is avoided, firmness of connection between the nut body and the bolt body is guaranteed, and the problems that after an existing bolt and nut are installed and used, due to vibration of the installation position, unscrewing is easily caused, looseness is generated, and the service life of the bolt and the nut is prolonged are solved. And the use firmness is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt nut technical field, specifically is a stainless steel bolt nut assembly. BACKGROUND

[0002] Bolt and nut are common fasteners, are widely used in machinery, electrical equipment and building;The existing bolt nut is easy to cause loosening after installation and use because of the vibration of the installation position, thereby produces the looseness, influences its use firmness, serious time will lead to mechanical failure or causes the major safety accident, for this, we propose a kind of stainless steel bolt nut assembly. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of stainless steel bolt nut assemblies, solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of stainless steel bolt nut assembly, including bolt body and nut body, the nut body is threadedly covered on bolt body, and anti-loose limiting mechanism is arranged between telescopic nut body and bolt body;

[0005] The anti-loose limiting mechanism includes fixed ring, positioning column, top ring and top sleeve, the fixed ring is fixedly connected with connecting rod between the fixed ring and nut body, the positioning column penetrates fixed ring, and the inner wall of the fixed ring is fixedly installed with limit slide plate, the outer wall of the positioning column is provided with limit sliding groove, the limit slide plate is slidably connected with the limit sliding groove, the limit slide plate bottom end and the inner wall bottom end between limit sliding groove are fixedly connected with spring one, the bottom end of bolt body is provided with column groove one, the positioning column is inserted in column groove one, the top end of the positioning column is fixedly installed with limit pin, the inner wall top end of column groove one is provided with pin slot, and the limit pin is inserted in pin slot;Nut body top end is provided with shrink ring groove, the top ring is inserted in shrink ring groove, the bottom end of the top ring and the inner wall between shrink ring groove are fixedly connected with spring two, the top end of the top ring is sleeved with top sleeve, and the inner wall top end of the top sleeve and the top end of the top ring are fixedly installed with rubber pad.

[0006] Preferably, the bottom end of the positioning column is fixedly installed with pull plate, by setting pull plate, personnel is facilitated by pull plate and pulls positioning column, to facilitate personnel operation.

[0007] Preferably, the inner wall top end of the limit sliding groove is fixedly installed with magnetic block, the inner wall of column groove one is fixedly installed with magnetic ring, and the material of the limit slide plate and the positioning column is iron, by setting magnetic ring, positioning column can be adsorbed after being inserted in column groove one, to improve the stability of positioning column in column groove one, guarantee the stability of limit pin in pin slot.

[0008] Preferably, there are several limiting pins and pin slots, and the limiting pins and pin slots are adapted to each other. By setting the limiting pins and pin slots, the limiting pins can be inserted into the pin slots, thereby limiting and fixing the positioning column.

[0009] Preferably, a limiting rod is fixedly installed on the inner wall of the limiting slide groove. The limiting rod moves through the limiting slide plate, and the spring surrounds the outer wall of the limiting rod. By setting the limiting rod, the spring can be limited, ensuring the stability of the spring during compression.

[0010] Preferably, a limiting post is fixedly installed at the bottom of the inner wall of the contraction ring groove, a second column groove is opened at the bottom of the top ring, the limiting post is inserted into the second column groove, the second spring surrounds the outer wall of the limiting post, a second limiting rod is fixedly installed at the top of the inner wall of the top sleeve, a rod groove is opened at the top of the top ring, and the second limiting rod is inserted into the rod groove. By setting the second limiting rod, the second spring can be limited, ensuring the stability of the second spring during compression.

[0011] This utility model provides a stainless steel bolt and nut assembly. This stainless steel bolt and nut assembly has the following advantages:

[0012] (1) The stainless steel bolt and nut assembly, by setting an anti-loosening limiting mechanism, can limit and fix the nut body when it is tightened to the position, so as to prevent the nut body from rotating due to vibration, and ensure the firmness of the connection between the nut body and the bolt body. This solves the problem that existing bolts and nuts are prone to loosening due to vibration of the installation position after installation and use, which affects their firmness.

[0013] (2) The stainless steel bolt and nut assembly can attract the positioning pin after it is inserted into the column groove by setting a magnetic ring, thereby improving the stability of the positioning pin in the column groove and ensuring the stability of the limit pin in the pin groove. By setting a rubber pad, the top ring can play a certain shock absorption role, further reducing the impact of vibration on the nut body. The structure is simple and the practicality is strong. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front sectional view of the present invention.

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram of section B;

[0018] Figure 5 This is a schematic diagram of the anti-loosening limiting mechanism of this utility model.

[0019] In the diagram: 1. Bolt body; 2. Nut body; 3. Anti-loosening limiting mechanism; 301. Connecting rod; 302. Fixing ring; 303. Positioning post; 304. Pull plate; 305. Limiting slide plate; 306. Limiting rod one; 307. Spring one; 308. Limiting groove; 309. Magnetic block; 310. Column groove one; 311. Limiting pin; 312. Pin groove; 313. Magnetic ring; 314. Top ring; 315. Contraction ring groove; 316. Limiting post; 317. Spring two; 318. Column groove two; 319. Top sleeve; 320. Rubber pad; 321. Limiting rod two; 322. Rod groove. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-5 As shown, this utility model provides a technical solution: a stainless steel bolt and nut assembly, including a bolt body 1 and a nut body 2, the nut body 2 being threadedly sleeved on the bolt body 1, and an anti-loosening limiting mechanism 3 being provided between the telescopic nut body 2 and the bolt body 1;

[0024] The anti-loosening limiting mechanism 3 comprises a fixed ring 302, a positioning column 303, a top ring 314 and a top sleeve 319, a connecting rod 301 is fixedly connected between the fixed ring 302 and the nut body 2, the positioning column 303 penetrates through the fixed ring 302, and a limiting sliding plate 305 is fixedly installed on the inner wall of the fixed ring 302, a limiting sliding groove 308 is formed on the outer wall of the positioning column 303, the limiting sliding plate 305 is slidably connected with the limiting sliding groove 308, a spring 307 is fixedly connected between the bottom end of the limiting sliding plate 305 and the bottom end of the inner wall of the limiting sliding groove 308, a column groove 310 is formed at the bottom end of the bolt body 1, the positioning column 303 is inserted into the column groove 310, a limiting pin 311 is fixedly installed at the top end of the positioning column 303, a pin groove 312 is formed at the top end of the inner wall of the column groove 310, and the limiting pin 311 is inserted into the pin groove 312; a contraction ring groove 315 is formed at the top end of the nut body 2, the top ring 314 is inserted into the contraction ring groove 315, a spring 317 is fixedly connected between the bottom end of the top ring 314 and the inner wall of the contraction ring groove 315, the top sleeve 319 is sleeved with the top end of the top ring 314, and a rubber pad 320 is fixedly installed between the top end of the inner wall of the top sleeve 319 and the top end of the top ring 314.

[0025] In the above technical solution, in use, the pull plate 304 is first pulled downward, so that the pull plate 304 drives the positioning column 303 to move downward, the positioning column 303 stretches the spring 307, the positioning column 303 drives the magnetic block 309 to move downward, the magnetic block 309 contacts the limiting sliding plate 305, and the magnetic block 309 fixes the positioning column 303 by adsorbing the limiting sliding plate 305. Then, the nut body is sleeved on the bolt body 1, and then the nut body 2 is screwed, so that the nut body 2 moves upward on the bolt body 1. When the nut body 2 contacts the fixed surface, the fixed surface extrudes the top sleeve 319, the top sleeve 319 drives the top ring 314 to move downward through the rubber pad 320, the top ring 314 compresses the spring 317, so that the nut body 2 and the bolt body 1 extrude and fix the structure to be fixed. When the nut body 2 is screwed in place, the pull plate 304 is pushed upward, so that the pull plate 304 drives the positioning column 303 to move upward, the positioning column 303 drives the magnetic block 309 to separate from the limiting sliding plate 305, the positioning column 303 is inserted into the column groove 310 under the restoring force of the spring, and the limiting pin 311 is inserted into the pin groove 312 at the current position, so as to limit the positioning column 303 and fix the nut body 2. Thus, the nut body 2 is prevented from rotating due to vibration, the nut body 2 is prevented from loosening, the nut body 2 is fixed and limited when screwed in place through the above structure, the nut body 2 is prevented from self-rotating due to vibration, the connection between the nut body 2 and the bolt body 1 is firm, the bolt nut after installation and use is prevented from loosening due to vibration of the installation position, the problem that the firmness of use is affected is solved.

[0026] Further, the bottom end of the positioning column 303 is fixedly installed with a pull plate 304;

[0027] Wherein, by setting the pull plate 304, the personnel can pull the positioning column 303 through the pull plate 304, so as to facilitate the operation of the personnel.

[0028] Further, the inner wall of the limiting sliding groove 308 is fixedly installed with a magnetic block 309, the inner wall of the column groove one 310 is fixedly installed with a magnetic ring 313, and the material of the limiting sliding plate 305 and the positioning column 303 is iron;

[0029] Wherein, by setting the magnetic ring 313, the positioning column 303 can be adsorbed after being inserted into the column groove one 310, so as to improve the stability of the positioning column 303 in the column groove one 310 and ensure the stability of the limiting pin 311 in the pin groove 312.

[0030] Further, the number of the limiting pin 311 and the pin groove 312 is several, and the limiting pin 311 and the pin groove 312 are matched;

[0031] Wherein, by setting the limiting pin 311 and the pin groove 312, the limiting pin 311 can be inserted into the pin groove 312, so as to limit and fix the positioning column 303.

[0032] Further, the inner wall of the limiting sliding groove 308 is fixedly installed with a limiting rod one 306, the limiting rod one 306 movably penetrates through the limiting sliding plate 305, and the spring one 307 surrounds the outer wall of the limiting rod one 306;

[0033] Wherein, by setting the limiting rod one 306, the spring one 307 can be limited, so as to ensure the stability of the spring one 307 when being compressed.

[0034] Further, the inner wall of the contraction ring groove 315 is fixedly installed with a limiting column 316 at the bottom end, the bottom end of the top ring 314 is provided with a column groove two 318, the limiting column 316 is inserted into the column groove two 318, the spring two 317 surrounds the outer wall of the limiting column 316, the inner wall of the top sleeve 319 is fixedly installed with a limiting rod two 321 at the top end, the top end of the top ring 314 is provided with a rod groove 322, and the limiting rod two 321 is inserted into the rod groove 322;

[0035] Wherein, by setting the limiting rod two 321, the spring two 317 can be limited, so as to ensure the stability of the spring two 317 when being compressed.

[0036] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to thereby enable others skilled in the art to best utilize the present application with various modifications as are suited to the particular use contemplated.

Claims

1. A stainless steel bolt and nut assembly comprising a bolt body (1) and a nut body (2) characterised in that: The nut body (2) is threadedly sleeved on the bolt body (1), and a loosening limiting mechanism (3) is arranged between the telescopic nut body (2) and the bolt body (1); The loosening limiting mechanism (3) comprises a fixed ring (302), a positioning column (303), a top ring (314) and a top sleeve (319), the fixed ring (302) is fixedly connected with the nut body (2) through a connecting rod (301), the positioning column (303) penetrates through the fixed ring (302), and a limiting sliding plate (305) is fixedly installed on the inner wall of the fixed ring (302), a limiting sliding groove (308) is formed on the outer wall of the positioning column (303), the limiting sliding plate (305) is slidably connected with the limiting sliding groove (308), a spring (307) is fixedly connected between the bottom end of the limiting sliding plate (305) and the bottom end of the inner wall of the limiting sliding groove (308), a column groove (310) is formed on the bottom end of the bolt body (1), the positioning column (303) is inserted into the column groove (310), a limiting pin (311) is fixedly installed on the top end of the positioning column (303), a pin groove (312) is formed on the top end of the inner wall of the column groove (310), and the limiting pin (311) is inserted into the pin groove (312); a contraction ring groove (315) is formed on the top end of the nut body (2), the top ring (314) is inserted into the contraction ring groove (315), a spring (317) is fixedly connected between the bottom end of the top ring (314) and the inner wall of the contraction ring groove (315), the top sleeve (319) is sleeved on the top end of the top ring (314), and a rubber pad (320) is fixedly installed between the inner wall top end of the top sleeve (319) and the top end of the top ring (314).

2. A stainless steel bolt and nut assembly according to claim 1 wherein: The bottom end of the positioning column (303) is fixedly installed with a pull plate (304).

3. A stainless steel bolt and nut assembly according to claim 1 wherein: The top end of the inner wall of the limiting sliding groove (308) is fixedly installed with a magnetic block (309), the inner wall of the column groove (310) is fixedly installed with a magnetic ring (313), and the materials of the limiting sliding plate (305) and the positioning column (303) are iron.

4. A stainless steel bolt and nut assembly according to claim 1 wherein: The number of the limiting pins (311) and the pin grooves (312) is several, and the limiting pins (311) and the pin grooves (312) are matched.

5. A stainless steel bolt and nut assembly according to claim 1 wherein: The inner wall of the limiting sliding groove (308) is fixedly installed with a limiting rod (306), the limiting rod (306) movably penetrates through the limiting sliding plate (305), and the spring (307) surrounds the outer wall of the limiting rod (306).

6. A stainless steel bolt and nut assembly according to claim 1 wherein: The bottom end of the inner wall of the contraction ring groove (315) is fixedly installed with a limiting column (316), the bottom end of the top ring (314) is provided with a column groove (318), the limiting column (316) is inserted into the column groove (318), the spring (317) surrounds the outer wall of the limiting column (316), the inner wall top end of the top sleeve (319) is fixedly installed with a limiting rod (321), the top end of the top ring (314) is provided with a rod groove (322), and the limiting rod (321) is inserted into the rod groove (322).

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