Four-claw nut

Abstract

The utility model relates to the technical field of nuts, and discloses a four-claw nut which comprises a nut body, a four-claw mechanism and a limiting mechanism used for limiting are arranged at the top of the nut body, the four-claw mechanism comprises four spiral drill bits rotationally arranged at the top of the nut body in a sleeving mode, and the top end of each spiral drill bit is fixedly connected with a hexagonal head. According to the four-claw nut, the four spiral drill bits can rotationally cut the surface of a material, a self-drilling hole is formed, and a thread structure is formed while the four spiral drill bits are screwed into the material, so that the drawing resistance of the nut body is remarkably improved, the nut body is more stable in the material, and the four-claw nut is particularly suitable for a vibration or impact environment; the novel four-claw nut pierces materials step by step in a rotary cutting mode, the needed torque is small, installation is more convenient and faster, in addition, the spiral drill bit is used in cooperation with the limiting mechanism, the loosening problem caused by random rotation of the drill bit in the using process can be effectively avoided, and the reliability and practicability of the nut are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of nuts, in particular to a four-jaw nut. BACKGROUND

[0002] The four-jaw nut is a part for tightly connecting mechanical equipment or products, and can be connected together with bolts of the same specification through the internal thread. When the four-jaw nut is installed, the four-jaw nut is pressed into the installation surface by a hammer or a riveting machine, and then the bolts are screwed into the threaded holes of the four-jaw nut to fix the parts or products.

[0003] The existing patent (publication number: CN219220999U) discloses a four-jaw nut, which belongs to the technical field of nuts. The four-jaw nut comprises a threaded sleeve, a clamping bracket is fixedly arranged on the top of the threaded sleeve, a circular ring is threadedly arranged on the bottom of the threaded sleeve, four clamping claws are arranged on the top of the circular ring in a ring shape and are uniformly distributed, and an adjusting device for driving the clamping claws to ascend and descend is arranged on the circular ring. The position of the clamping claw is adjusted, so that the four-jaw nut can be installed on plate materials of different thicknesses, the compatibility of installation is greatly improved, the structure is reasonable, and the four-jaw nut is easy to popularize.

[0004] The claws of the four-jaw nut in the above-mentioned comparative document need to be hammered or pressed into the material, and in a vibration or impact environment, the nut is prone to loosening in the material. In order to solve the above-mentioned problems, a four-jaw nut is provided. Content of the utility model

[0005] In view of the deficiencies of the prior art, the application provides a four-jaw nut, which is designed as a spiral drill bit shape, which can greatly improve the installation efficiency, stability and applicability.

[0006] In order to achieve the above-mentioned purpose, the application provides the following technical scheme: a four-jaw nut, comprising a nut body, a four-jaw mechanism and a limiting mechanism for limiting are arranged on the top of the nut body, the four-jaw mechanism comprises four spiral drill bits rotatably sleeved on the top of the nut body, the top end of each spiral drill bit is fixedly connected with a hexagonal head, the limiting mechanism comprises four supports, the inner wall of each support is slidably sleeved with a limiting rod, the outer surface of each hexagonal head is provided with a plurality of limiting grooves, the outer surface of each limiting rod is fixedly connected with a connecting piece, and the outer surface of each connecting piece is fixedly connected with a telescopic spring.

[0007] By the above scheme, the four spiral drill bits can directly rotate and cut the material surface to form a self-drilling hole, and form a thread-like structure when rotating into the material, thereby improving the pull-out resistance of the nut body, preventing the nut body from loosening in the material, being suitable for vibration or impact environment, and requiring smaller torque and being easier to install through the gradual cutting of the spiral drill bit by rotation, and the limiting mechanism can limit the rotation of the spiral drill bit, effectively preventing the spiral drill bit from loosening due to random rotation, and being more practical.

[0008] Further, the top end of each hexagonal head is provided with a cross-shaped groove.

[0009] By the above scheme, the hexagonal head can be twisted by a screwdriver, optimizing the installation process.

[0010] Further, the diameter of the limiting groove corresponds to the diameter of the limiting rod.

[0011] By the above scheme, the relationship between the limiting groove and the limiting rod is defined, so that the limiting rod can be inserted into the limiting groove, thereby limiting the rotation of the spiral drill bit and reducing the probability of loosening of the spiral drill bit.

[0012] Further, the four telescopic springs are respectively sleeved outside the four limiting rods, and one end of each telescopic spring is fixedly connected to the outer surface of the four supports.

[0013] By the above scheme, the connection relationship of the telescopic spring is defined, which can limit the position of the limiting rod, facilitate the limiting of the spiral drill bit by the limiting rod, and further improve the stability of the nut body during installation.

[0014] Further, the outer surface of each connecting piece is fixedly connected with a fixed piece, and the outer surface of each fixed piece is coated with an anti-skid layer.

[0015] By the above scheme, the contact area of the connecting piece surface can be increased, facilitating the pulling of the connecting piece.

[0016] Further, the bottom surface of the nut body is fixedly connected with an elastic gasket, and the four spiral drill bits are not in contact with the elastic gasket.

[0017] By the above scheme, the friction can be increased and the pressure can be dispersed to avoid damage to the material surface.

[0018] Further, the outer surface of the nut body is provided with uniformly distributed grooves.

[0019] The above solution can generate greater contact friction with the material, preventing the nut body from loosening or rotating during use, making it more stable in vibration environments, and less prone to loosening due to micro-vibration or impact.

[0020] Furthermore, the inner wall of each groove is filled with rubber.

[0021] The above solution can further improve the grip and vibration resistance of the nut body.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This new four-pronged nut features four rotating auger bits that cut the material surface, creating a self-drilling hole and simultaneously forming a threaded structure as it is screwed into the material. This design significantly improves the nut's tensile strength, making it more stable within the material and particularly suitable for vibration or impact environments. Compared to traditional four-pronged nuts, the new nut penetrates the material gradually through a rotating cutting method, requiring less torque and making installation more convenient. Furthermore, the auger bits, when used in conjunction with a limiting mechanism, effectively prevent loosening caused by the auger bits rotating arbitrarily during use, thus enhancing the nut's reliability and practicality. Attached Figure Description

[0024] Figure 1 This is a top view of the overall structure of this application.

[0025] Figure 2 This is a schematic diagram of the overall bottom view of the structure of this application;

[0026] Figure 3 This is a partial bottom view of the structure of this application;

[0027] Figure 4 This is a partial top view of the structure of this application.

[0028] In the picture:

[0029] 1. Nut body; 2. Four-jaw mechanism; 201. Spiral drill bit; 202. Hexagonal head; 203. Cross groove; 3. Limiting mechanism; 301. Bracket; 302. Limiting rod; 303. Limiting groove; 304. Connecting piece; 305. Telescopic spring; 306. Fixing piece; 4. Elastic washer; 5. Groove; 6. Rubber. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 ,and Figure 4 This embodiment of a four-jaw nut includes a nut body 1. The top of the nut body 1 is provided with a four-jaw mechanism 2 and a limiting mechanism 3 for limiting the position. The four-jaw mechanism 2 includes four spiral drill bits 201 rotatably sleeved on the top of the nut body 1. By setting the spiral drill bits 201, the pull-out resistance of the nut body 1 can be enhanced through threaded engagement. Each spiral drill bit 201 has a hexagonal head 202 fixedly connected to its top. The spiral drill bit 201 can be rotated by rotating the hexagonal head 202. The rotation of the hexagonal head 202 can be achieved by using a wrench. In this way, the spiral drill bit 201 can rotate and cut into the surface of the material with less torque required, and can avoid cracking or damage to the material during insertion. At the same time, after insertion, a threaded structure will be formed on the inner wall of the material, which can effectively improve the stability of the nut body 1 during installation. Each hexagonal head 202 has a cross groove 203 at its top. The hexagonal head 202 can be turned with a screwdriver through the cross groove 203, which optimizes the installation process.

[0032] Please see Figure 1 and Figure 4The limiting mechanism 3 includes four supports 301. Each support 301 has a limiting rod 302 slidably fitted onto its inner wall. Each hexagonal head 202 has multiple limiting grooves 303 on its outer surface. The diameter of each limiting groove 303 corresponds to the diameter of the limiting rod 302, defining the relationship between the limiting grooves 303 and the limiting rods 302. This allows the limiting rods 302 to be inserted into the limiting grooves 303, thereby limiting the rotation of the auger drill bit 201 and reducing the likelihood of the auger drill bit 201 becoming loose. Each limiting rod 302 has a connecting piece 304 fixedly connected to its outer surface, and each connecting piece 304 has a telescopic spring 305 fixedly connected to its outer surface. Each telescopic spring 305 is sleeved on the outside of the four limiting rods 302, and one end of each of the four telescopic springs 305 is fixedly connected to the outer surface of the four brackets 301, which limits the connection relationship of the telescopic springs 305 and can limit the position of the limiting rods 302. This facilitates the limiting of the auger bit 201 by the limiting rods 302, and can further improve the stability of the nut body 1 during installation. Each connecting piece 304 has a fixing piece 306 fixedly connected to its outer surface. The outer surface of each fixing piece 306 is coated with an anti-slip layer. By setting the fixing piece 306, the contact area of ​​the connecting piece 304 can be increased, making it easier to pull the connecting piece 304.

[0033] It should be noted that after turning the hexagonal head 202 to rotate the auger drill bit 201 into the material for positioning, the position of the hexagonal head 202 should be adjusted appropriately so that one of the multiple limiting grooves 303 on the surface of the hexagonal head 202 corresponds to the position of the limiting rod 302. This further limits the position of the hexagonal head 202, allowing the limiting rod 302 to be inserted into the limiting groove 303, thereby improving the stability of the hexagonal head 202 and the auger drill bit 201 and preventing the auger drill bit 201 from loosening due to impact or vibration. This optimizes the installation effect of the nut body 1. Furthermore, when turning the hexagonal head 202, the connecting piece 304 should be pulled first to prevent the limiting rod 302 from interfering with the rotation of the hexagonal head 202, so that the hexagonal head 202 can rotate normally.

[0034] Please see Figure 1 , Figure 2 and Figure 3An elastic washer 4 is fixedly connected to the bottom surface of the nut body 1. The four spiral drill bits 201 do not contact the elastic washer 4. The elastic washer 4 increases friction and disperses pressure, avoiding damage to the material surface. The outer surface of the nut body 1 has evenly distributed grooves 5. The grooves 5 can form greater contact friction with the material, preventing the nut body 1 from loosening or rotating during use. It is more stable in a vibration environment and is not easy to loosen due to micro-vibration or impact. The inner wall of each groove 5 is filled with rubber 6. The rubber 6 can further improve the grip and vibration resistance of the nut body 1.

[0035] In this embodiment, a four-jaw nut can directly cut the material surface to form a self-drilling hole using four spiral drill bits 201. As the drill bits rotate and penetrate the material, they form a threaded structure, improving the pull-out resistance of the nut body 1 and making it less prone to loosening within the material. This design is suitable for vibration or impact environments. Furthermore, traditional claw tips require significant hammering force or pressure to penetrate the material, potentially damaging the material or the nut body 1. The spiral drill bits 201, however, cut gradually through rotation, requiring less torque and making installation easier. The included limiting mechanism 3 effectively limits the spiral drill bits 201, preventing them from rotating arbitrarily and causing loosening, making the nut more practical.

[0036] The working principle of the above embodiment is as follows: In use, the nut body 1 is inserted into the reserved hole in the material, and then the connecting piece 304 is pulled in sequence to move the limiting rod 302 out of the corresponding limiting groove 303. Then, the hexagonal head 202 is turned in sequence to rotate the spiral drill bit 201. The hexagonal head 202 can be turned with a wrench or screwdriver. When the spiral drill bit 201 rotates, it can directly and gradually cut the surface of the material, requiring less torque and making installation more convenient. Because it is a spiral drill bit 201, a threaded structure is formed when it rotates and penetrates the material, which makes it less likely for the nut body 1 to be embedded in the material. The loosening mechanism is suitable for vibration or impact environments. After the auger bit 201 rotates and penetrates the material, the connecting piece 304 can be loosened in sequence. With the help of the elastic force generated by the deformation of the telescopic spring 305, the limiting rod 302 can be reset, allowing the limiting rod 302 to be inserted into the corresponding limiting groove 303. This achieves the limiting work of the auger bit 201 and the hexagonal head 202, improving stability. Finally, the screw that matches the nut body 1 is locked in the nut body 1, thus achieving the overall connection. Furthermore, the elastic washer 4, the groove 5, and the rubber 6 all improve the vibration resistance of the nut body 1, making it more practical.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of this 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 to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-pronged nut, comprising a nut body (1), characterized in that: The top of the nut body (1) is provided with a four-jaw mechanism (2) and a limiting mechanism (3) for limiting. The four-jaw mechanism (2) includes four spiral drill bits (201) rotatably sleeved on the top of the nut body (1). Each spiral drill bit (201) has a hexagonal head (202) fixedly connected to its top end. The limiting mechanism (3) includes four brackets (301). Each bracket (301) has a limiting rod (302) slidably sleeved on its inner wall. Each hexagonal head (202) has multiple limiting grooves (303) on its outer surface. Each limiting rod (302) has a connecting piece (304) fixedly connected to its outer surface. Each connecting piece (304) has a telescopic spring (305) fixedly connected to its outer surface.

2. A four-jaw nut according to claim 1, characterized in that: Each of the hexagonal heads (202) has a cross groove (203) at its top.

3. A four-jaw nut according to claim 1, characterized in that: The diameter of the limiting groove (303) corresponds to the diameter of the limiting rod (302).

4. A four-jaw nut according to claim 1, characterized in that: The four telescopic springs (305) are respectively sleeved on the outside of the four limiting rods (302), and one end of each of the four telescopic springs (305) is fixedly connected to the outer surface of the four brackets (301).

5. A four-jaw nut according to claim 1, characterized in that: Each of the connecting pieces (304) has a fixing piece (306) fixedly connected to its outer surface, and each of the fixing pieces (306) has an anti-slip layer coated on its outer surface.

6. A four-jaw nut according to claim 1, characterized in that: An elastic washer (4) is fixedly connected to the bottom surface of the nut body (1), and none of the four spiral drill bits (201) are in contact with the elastic washer (4).

7. A four-jaw nut according to claim 1, characterized in that: The outer surface of the nut body (1) is provided with uniformly distributed grooves (5).

8. A four-jaw nut according to claim 7, characterized in that: The inner wall of each groove (5) is filled with rubber (6).

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