Screw and nut assembly

Abstract

The utility model belongs to the technical field of hardware fasteners, and particularly relates to a screw and nut assembly which comprises a screw integration assembly, the screw integration assembly comprises a screw body, the outer wall of the screw body is connected with a flexible pad, the top of the screw body is fixedly connected with a control head, an inner hexagonal clamping groove is reserved in the top of the control head, and the outer wall of the screw body is connected with a nut. The flexible pad is arranged on the outer wall of the control head, stress application clamping grooves are formed in the outer wall of the control head, the flexible pad and the screw body form a rotating structure, the flexible pad is made of rubber, and the stress application clamping grooves are arranged at equal angles relative to the outer wall of the control head. According to the anti-loosening nut, the arranged flexible pad can conveniently prevent loosening of the screw or the nut caused by vibration, impact or other external force so as to provide an additional anti-loosening function, in addition, the position of the nut body can be fixed through the clamping rod, the nut body is prevented from loosening, and therefore the frequency that a fastener needs to be replaced due to loosening is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware fasteners, in particular to a screw and nut assembly. Background Art

[0002] A screw is a fastener with an external thread that can be screwed into a prefabricated hole or material to connect or fix objects. A nut is a fastener with an internal thread that is designed to mate with the external thread of a bolt or screw. It is usually used to fix two or more components. The combination of screws and nuts can provide strong connection force and is widely used in machinery, construction, electronics, automobiles, aerospace and other industries.

[0003] The existing screw and nut assemblies have the problem that after the objects are connected and fixed with screws and nuts, the screws or nuts may become loose due to vibration caused by the objects working for a long time. At the same time, if the objects are placed outdoors for a long time and are exposed to rain for a long time, the screws and threads may rust on the surface, resulting in the problem of being unable to tighten the screws and nuts when the objects need to be disassembled.

[0004] Therefore, a nut assembly is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the existing technology, the utility model solves the problem that the screws or nuts become loose due to vibration caused by long-term work of the object, and at the same time, long-term rain will cause rust on the surface of the screws and threads, making it impossible to tighten the screws and nuts.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the nut assembly described in the present invention includes a screw integrated assembly, the screw integrated assembly includes a screw body, and the outer wall of the screw body is connected with a flexible pad, and the top of the screw body is fixedly connected with a control head, the top of the control head is reserved with a hexagonal slot, and the outer wall of the control head is provided with a force-added slot.

[0007] Preferably, the flexible pad and the screw body form a rotating structure, and the material of the flexible pad is set to rubber, and the force-adding slot is set at an equal angle with respect to the outer wall of the control head.

[0008] Preferably, the outer wall of the screw body is sprayed with a first anti-rust layer, and the material of the first anti-rust layer is set to be a ceramic coating.

[0009] Preferably, it includes a nut integrated component arranged on the outer wall of the screw integrated component, and the interior of the nut integrated component is connected with an anti-loosening component; the anti-loosening component includes a limiting groove, the side of the limiting groove is connected with a slot, and the interior of the slot is engaged with a locking rod, one end of the locking rod is installed with a rotating seat, and the outer wall of the rotating seat is rotatably connected to the limiting rod.

[0010] Preferably, the limiting rod forms a rotating structure with the rotating seat and the engaging rod, and the engaging rod forms a engaging structure with the limiting groove through the slot.

[0011] Preferably, the nut integrated assembly comprises a nut body, the inner wall of the nut body is coated with a second anti-rust layer, and the outer wall of the nut body is coated with an anti-slip coating.

[0012] Preferably, the material of the second anti-rust layer is set to ceramic coating, the material of the anti-slip coating is set to cold-dip galvanized paint, the nut integrated component and the screw integrated component form a threaded connection, and the nut integrated component forms a detachable structure with the screw integrated component through the anti-loosening component.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model is provided with a screw integrated component and a flexible pad at the bottom of the control head. The flexible pad is made of nylon and can prevent the screw or nut from loosening due to vibration, impact or other external forces, thereby providing an additional anti-loosening function. A hexagonal slot is provided in the control head. Since the hexagonal force-bearing surface of the hexagonal slot can withstand the force of tightening better than the two surfaces of a slotted or cross screw, the screw with the hexagonal slot can withstand a greater load. The side of the control head is provided with a force-adding slot, which can assist in applying torque to the screw body, thereby facilitating the screw to be unscrewed or tightened.

[0015] 2. The utility model is provided with an anti-loosening component. Once the position of the nut body is determined, the position of the nut body can be fixed by the snap rod to prevent the nut body from loosening. This will ensure the stability of the nut body and reduce the frequency of replacing fasteners due to loosening.

[0016] 3. The utility model is provided with a nut integrated component, and the material of the second anti-rust layer is set to be a ceramic coating. Ceramic coating is also a common spray coating, which is used to improve the wear resistance and corrosion resistance of the screws. The material of the anti-slip coating is set to be cold-dip galvanizing. The cold-dip galvanized coating can meet the requirements of the anti-slip coefficient. The reasons include the high zinc powder content in the paint film and the increased surface roughness, which increases the friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model from the side;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the screw integrated assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the anti-loosening component of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the slot and the engaging rod of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the nut integrated component of the utility model.

[0023] In the figure: 1. Screw integrated assembly; 101. Screw body; 102. Flexible pad; 103. Control head; 104. Hexagon socket slot; 105. Force-adding slot; 2. Nut integrated assembly; 201. Nut body; 202. Second anti-rust layer; 203. Anti-slip coating; 3. Anti-loosening assembly; 301. Limiting groove; 302. Slot; 303. Clamping rod; 304. Rotating seat; 305. Limiting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1 and Figure 2As shown, a screw includes a screw integrated component 1, which includes a screw body 101, a flexible pad 102, an operating head 103, a hexagonal slot 104, and a force-adding slot 105. The flexible pad 102 provided in the screw integrated component 1 is convenient for preventing the screw or nut from loosening due to vibration, impact or other external forces, so as to provide an additional anti-loosening function. The flexible pad 102 and the screw body 101 constitute a rotating structure, and the material of the flexible pad 102 is set to rubber. The force-adding slot 105 is set at an equal angle to the outer wall of the operating head 103. The outer wall of the screw body 101 is sprayed with a first anti-rust layer, and the material of the first anti-rust layer is set to a ceramic coating; by arranging a flexible pad 102 at the bottom of the operating head 103, the flexible pad 102 is made of nylon. The flexible pad 102 is similar to the screw elastic gasket, and both are increased by elastic force. The friction between the large threads can effectively prevent the threads from loosening. Screw elastic washers are accessories used in bolt or screw connections. Their main functions are to provide pre-tightening force, prevent loosening, protect the surface of the connected parts, and provide sealing effects when needed. The flexible pad 102 can prevent the screws or nuts from loosening due to vibration, impact or other external forces to provide additional anti-loosening function. A hexagonal slot 104 is provided in the control head 103. Since the hexagonal force-bearing surface of the hexagonal slot 104 can withstand the force of tightening better than the two surfaces of a flat or cross screw, the screw of the hexagonal slot 104 can withstand a larger load, and a force-adding slot 105 is provided on the side of the control head 103. The force-adding slot 105 can assist in applying torque to the screw body 101, thereby facilitating the screw to be screwed out or tightened.

[0027] like Figure 1 、 Figure 3 and Figure 4As shown, a nut assembly includes a nut integrated assembly 2 arranged on the outer wall of the screw integrated assembly 1, and the interior of the nut integrated assembly 2 is connected with an anti-loosening assembly 3; the anti-loosening assembly 3 includes a limiting groove 301, a slot 302, a locking rod 303, a rotating seat 304, and a limiting rod 305. The anti-loosening assembly 3 can fix the position of the nut body 201 through the locking rod 303 to prevent the nut body 201 from loosening, thereby reducing the frequency of replacing fasteners due to loosening. The limiting rod 305 forms a rotating structure with the locking rod 303 through the rotating seat 304, and the locking rod 303 forms a locking structure with the limiting groove 301 through the slot 302; the function of the locking rod 303 is similar to that of a cotter pin, which is used for threaded connection to prevent loosening. After the nut is tightened, the cotter pin is inserted into the nut groove and the tail hole of the bolt. 302 on the nut body 201 does not coincide with the slot 302, the nut body 201 can be reversed to ensure that the limiting groove 301 coincides with the slot 302, thereby ensuring that the locking rod 303 can be engaged therein, thereby ensuring that the locking rod 303 can prevent the nut body 201 from loosening.

[0028] like Figure 1 and Figure 5As shown, a nut assembly, a nut integrated assembly 2, includes a nut body 201, a second anti-rust layer 202, and an anti-slip coating 203. The material of the second anti-rust layer 202 is set to a ceramic coating for improving the wear resistance and corrosion resistance of the screw. At the same time, the material of the anti-slip coating 203 is set to cold galvanizing, thereby increasing the friction. The material of the second anti-rust layer 202 is set to a ceramic coating, and the material of the anti-slip coating 203 is set to a cold galvanizing paint. The nut integrated assembly 2 is threadedly connected to the screw integrated assembly 1, and the nut integrated assembly 2 is detachable with the screw integrated assembly 1 through the anti-loosening assembly 3; the material of the second anti-rust layer 202 is set to a ceramic coating, and the ceramic coating is also a common The spray coating is used to improve the wear resistance and corrosion resistance of the screws. The ceramic coating is an inorganic non-metallic material coated on the metal surface. It can provide excellent corrosion resistance and high temperature resistance, thereby extending the service life of metal parts. The material of the anti-slip coating 203 is set to cold galvanizing. The cold galvanized coating can meet the requirements of the anti-slip coefficient. The cold galvanized coating deposits a layer of zinc on the surface of the screw through electrolysis. It is suitable for decoration and mild corrosion protection in general environments. The advantages of cold galvanized coating include good corrosion resistance and sacrificial anode protection performance, as well as good decorativeness and certain wear resistance. The reasons include high zinc powder content in the paint film and increased surface roughness, which increases friction.

[0029] Working principle: First, by setting a hexagonal slot 104 in the control head 103, since the hexagonal force-bearing surface of the hexagonal slot 104 can withstand the force of tightening better than the two surfaces of a slotted or cross screw, the screw of the hexagonal slot 104 can withstand a larger load. When using the screw body 101 and the nut body 201, the screw body 101 can be placed in the position where it is needed, and then the nut body 201 can be rotated into the screw body 101. Since a flexible pad 102 is provided on the screw body 101, and the material of the flexible pad 102 is nylon, the flexible pad 102 can prevent the screw body 101 and the nut body 201 from loosening due to vibration, impact or other external forces, thereby providing an additional anti-loosening function;

[0030] When the screw body 101 and the nut body 201 are rotated to a suitable tightness, the limiting rod 305 is rotated on the side of the engaging rod 303 through the rotating seat 304, so that the limiting rod 305 is rotated to the same horizontal line as the engaging rod 303. At this time, the limiting rod 305 and the engaging rod 303 are inserted into the corresponding slots 302 and the limiting groove 301 in sequence. When the engaging rod 303 is fully inserted, the limiting rod 305 can be rotated again on the side of the engaging rod 303 through the rotating seat 304, so that the limiting rod 305 is rotated to be perpendicular to the engaging rod 303, thereby limiting the position of the engaging rod 303. When the screw body 101 and the nut body 201 need to be disassembled, the screw body 101 When the connection with the nut body 201 is too tight and it is inconvenient to disassemble, a rod can be inserted into the force-adding slot 105, and the screw body 101 and the nut body 201 can be disassembled with the help of the force of the rod. Finally, since a second anti-rust layer 202 is applied to the inner wall of the nut body 201, the material of the second anti-rust layer 202 is set to ceramic coating. Ceramic coating is also a common spray coating used to improve the wear resistance and corrosion resistance of the screw, and an anti-slip coating 203 is applied to the outer wall of the nut body 201. The material of the anti-slip coating 203 is set to cold galvanizing. The cold galvanized coating can meet the requirements of the anti-slip coefficient. The reasons include the high zinc powder content in the paint film and the increased surface roughness, which increases the friction.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A screw, characterized in that: The invention comprises a screw integrated component (1), wherein the screw integrated component (1) comprises a screw body (101), wherein the outer wall of the screw body (101) is connected with a flexible pad (102), and the top of the screw body (101) is fixedly connected with a control head (103), the top of the control head (103) is reserved with an inner hexagonal slot (104), and the outer wall of the control head (103) is provided with a force-adding slot (105).

2. The screw according to claim 1, characterized in that: The flexible pad (102) and the screw body (101) form a rotating structure, and the material of the flexible pad (102) is set to rubber. The force-adding slot (105) is set at an equal angle with respect to the outer wall of the control head (103).

3. The screw according to claim 1, characterized in that: The outer wall of the screw body (101) is sprayed with a first anti-rust layer, and the material of the first anti-rust layer is set to be a ceramic coating.

4. A nut assembly, a screw according to any one of claims 1 to 3, characterized in that: It comprises a nut integrated component (2) arranged on the outer wall of a screw integrated component (1), and an anti-loosening component (3) is connected to the interior of the nut integrated component (2); The anti-loosening assembly (3) comprises a limiting groove (301), the side of the limiting groove (301) is connected to a slot (302), and the interior of the slot (302) is engaged with a locking rod (303), one end of the locking rod (303) is mounted with a rotating seat (304), and the outer wall of the rotating seat (304) is rotatably connected to the limiting rod (305).

5. The nut assembly according to claim 4, characterized in that: The limiting rod (305) forms a rotating structure with the locking rod (303) through the rotating seat (304), and the locking rod (303) forms a locking structure with the limiting groove (301) through the slot (302).

6. The nut assembly according to claim 4, characterized in that: The nut integrated assembly (2) comprises a nut body (201), the inner wall of the nut body (201) is coated with a second anti-rust layer (202), and the outer wall of the nut body (201) is coated with an anti-slip coating (203).

7. The nut assembly according to claim 6, characterized in that: The material of the second anti-rust layer (202) is set to be a ceramic coating, the material of the anti-slip coating (203) is set to be a cold-dip galvanized paint, the nut integrated component (2) and the screw integrated component (1) are threadedly connected, and the nut integrated component (2) and the screw integrated component (1) form a detachable structure through the anti-loosening component (3).

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