A stud and mating nut

Abstract

The utility model relates to the technical field of fastener, especially relates to a stud and matched nut, including screw rod body, nut body, recess, reserved hole, mounting ring, plug rod and rubber head, the nut body is threadedly connected in the periphery of screw rod body, the periphery of screw rod body is provided with three groups recesses, three groups recesses around the axis of screw rod body even circumferential arrangement, the inside of each group recess is provided with multiple linear arrangement reserved holes, the inside rotation is connected in the nut body of mounting ring, the inside of mounting ring is connected with three groups plug rod, three groups plug rod around the axis of nut body even circumferential arrangement, rubber head fixed mounting is located in one end of plug rod, rubber head is located in the inside of one reserved hole, the utility model discloses through mounting ring can drive three groups plug rod in the upper end of nut body rotation, can with rubber head and suitable reserved hole corresponding, through plug rod can insert rubber head in suitable reserved hole, lock nut body, prevent the nut body from loosening.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a stud and a matching nut. Background Technology

[0002] In the field of mechanical assembly, studs and nuts are commonly used fasteners. A double-ended stud is a fastener with threads at both ends and a smooth rod in the middle. When connecting and fixing two parts, one end is screwed into the part with an internal threaded hole, and the other end passes through the part with a through hole. Then, a nut is screwed on to fasten the two parts together as a whole.

[0003] After installation, traditional studs are prone to loosening due to vibration or external force, affecting the reliability of the connection. To solve the loosening problem, it is usually necessary to add an anti-loosening washer or use double nuts, which requires carrying more small parts and is easy to lose during transportation. Alternatively, thread-locking glue can be filled at the connection between the nut and the screw, which has a good anti-loosening effect, but subsequent disassembly is difficult.

[0004] Therefore, to address the above issues, a stud and matching nut can be designed. By using the pre-drilled hole on the surface of the stud to engage with the insert rod connected to the upper end of the nut, the tightened nut can be manually locked, effectively preventing the nut from loosening, without the need to carry additional small accessories. Utility Model Content

[0005] To overcome the problem that traditional studs are prone to loosening due to vibration or external force after installation, affecting the reliability of the connection, it is usually necessary to add an anti-loosening washer or use double nuts to solve the loosening problem. This requires carrying more small parts, which are easy to lose during transportation. Alternatively, thread-locking glue can be filled at the connection between the nut and the screw, which has a good anti-loosening effect, but makes subsequent disassembly difficult.

[0006] The technical solution of this utility model is as follows: a stud and matching nut, including a screw body, a nut body, grooves, reserved holes, a mounting ring, inserts, and a rubber head. The nut body is threaded to the periphery of the screw body. Three sets of grooves are formed on the periphery of the screw body. The three sets of grooves are evenly arranged circumferentially around the axis of the screw body. Each set of grooves has multiple sets of linearly arranged reserved holes inside. The mounting ring is rotatably connected to the inside of the nut body. Three sets of inserts are slidably connected inside the mounting ring. The three sets of inserts are evenly arranged circumferentially around the axis of the nut body. The rubber head is fixedly installed at one end of the insert and is located inside one set of reserved holes.

[0007] Preferably, the insert rods are supported and installed by setting an installation ring. After the nut body is tightened, the installation ring can drive the three sets of insert rods to rotate at the upper end of the nut body, so that the rubber head can be aligned with the appropriate reserved hole. By setting the insert rod to slide inside the installation ring, the rubber head can be inserted into the appropriate reserved hole, thereby locking the nut body and preventing the nut body from loosening. When disassembling, you only need to apply force along the axis of the insert rod to pull out the rubber head and unlock the nut body, which is convenient for disassembly.

[0008] Preferably, the cross-sectional area of ​​the rubber head is larger than the cross-sectional area of ​​the reserved hole.

[0009] Preferably, the lower end of the screw body is provided with a tapered portion.

[0010] Preferably, the upper end of the screw body is provided with a smooth part, and the upper end of the smooth part is provided with an internal hexagonal hole.

[0011] Preferably, three sets of guide bars are fixedly installed on the periphery of the smooth part, and three sets of guide grooves are opened inside the nut body, with the guide grooves corresponding to the guide bars.

[0012] Preferably, the outer surface of the nut body is provided with anti-slip serrations.

[0013] Preferably, an elastic washer is fixedly installed at the lower end of the nut body, and the elastic washer has a spiral structure.

[0014] The beneficial effects of this utility model are:

[0015] The insert rods are supported and installed by the mounting ring. After the nut body is tightened, the mounting ring can drive the three sets of insert rods to rotate at the upper end of the nut body. The rubber head can be aligned with the appropriate reserved hole. By sliding the insert rod inside the mounting ring, the rubber head can be inserted into the appropriate reserved hole, thereby locking the nut body and preventing it from loosening. There is no need to carry redundant small parts, which is more convenient. When disassembling, you only need to apply force along the axis of the insert rod to pull out the rubber head and unlock the nut body. Disassembly is convenient. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the stud and matching nut of this utility model;

[0017] Figure 2 The diagram shown is a second three-dimensional structural schematic of the stud and matching nut of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the stud and matching nut of this utility model.

[0019] Figure 4The diagram shown is a three-dimensional cross-sectional view of the stud and matching nut press-nut body of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Screw body; 101. Groove; 102. Reserved hole; 2. Nut body; 201. Mounting ring; 202. Insert rod; 203. Rubber head; 204. Anti-slip serration; 3. Tapered part; 4. Smooth part; 401. Internal hexagonal hole; 501. Guide strip; 502. Guide groove; 6. Elastic washer. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 4 This utility model provides an embodiment: a stud and matching nut, including a screw body 1, a nut body 2, grooves 101, reserved holes 102, a mounting ring 201, insert rods 202, and a rubber head 203. The nut body 2 is threaded to the periphery of the screw body 1. Three sets of grooves 101 are formed on the periphery of the screw body 1, and the three sets of grooves 101 are evenly arranged circumferentially around the axis of the screw body 1. Each set of grooves 101 has multiple sets of linearly arranged reserved holes 102 inside. The mounting ring 201 is rotatably connected to the inside of the nut body 2, and three sets of insert rods 202 are slidably connected inside the mounting ring 201. The three sets of insert rods 202 are evenly arranged circumferentially around the axis of the nut body 2. The rubber head 203 is fixedly installed at one end of the insert rod 202, and the rubber head 203 is located inside one set of reserved holes 102. The insert rods 202 are supported and installed by setting the mounting ring 201. After the main body 2 is tightened, the mounting ring 201 can drive the three sets of insert rods 202 to rotate at the upper end of the nut body 2, aligning the rubber head 203 with the appropriate pre-drilled hole 102. By setting the insert rods 202 to slide inside the mounting ring 201, the rubber head 203 can be inserted into the appropriate pre-drilled hole 102, thereby locking the nut body 2 and preventing it from loosening. When disassembling, simply apply force along the axial direction of the insert rods 202 to pull out the rubber head 203 and unlock the nut body 2, making disassembly convenient. The cross-sectional area of ​​the rubber head 203 is larger than that of the pre-drilled hole 102. The cross-sectional area of ​​the rubber head 203 is slightly larger than that of the pre-drilled hole 102, allowing the outer surface of the rubber head 203 to fit tightly against the inner wall of the pre-drilled hole 102 after insertion, effectively increasing friction and preventing the rubber head 203 from accidentally coming out.

[0023] Please see Figure 1 , Figure 2 and Figure 3In this embodiment, a tapered portion 3 is provided at the lower end of the screw body 1; the tapered portion 3 facilitates the guidance of the lower end of the screw body 1 into the threaded hole of the part to be connected and fixed; a smooth portion 4 is provided at the upper end of the screw body 1, and an internal hexagonal hole 401 is provided at the upper end of the smooth portion 4; three sets of guide bars 501 are fixedly installed on the periphery of the smooth portion 4, and three sets of guide grooves 502 are provided inside the nut body 2, with the guide grooves 502 corresponding to the guide bars 501; the internal hexagonal hole 401 facilitates the use of common tools to rotate the screw body 1, and the guide bars 501, in conjunction with the guide grooves 502, can fit the nut body 2 around the screw body 1, and can also prevent the nut body 2 from accidentally coming off the outside of the screw body 1.

[0024] Please see Figure 3 and Figure 4 In this embodiment, the outer surface of the nut body 2 is provided with anti-slip serrations 204; by providing anti-slip serrations 204, greater friction can be provided when rotating the nut body 2, making it easier to rotate the nut body 2; an elastic washer 6 is fixedly installed at the lower end of the nut body 2, and the elastic washer 6 has a spiral structure; by providing the elastic washer 6 in conjunction with the part to be fixed, an upward thrust is applied to the nut body 2, making the threaded connection between the nut body 2 and the screw body 1 tighter and preventing loosening. At the same time, it can also help the rubber head 203 at the upper end of the nut body 2 to align with the appropriate reserved hole 102.

[0025] When working, the lower end of the screw body 1 can be easily inserted into the threaded hole of the part to be connected using the tapered part 3, and the screw body 1 can be easily rotated using common tools using the internal hexagonal hole 401, thereby connecting and fixing the screw body 1 to a set of parts to be connected.

[0026] Then, another set of parts to be connected is placed around the screw body 1. The guide bar 501 and guide groove 502 are used to fit the nut body 2 around the screw body 1. The anti-slip teeth 204 can provide greater friction when rotating the nut body 2, making it easier to rotate the nut body 2. The elastic washer 6, together with the parts to be fixed, applies an upward thrust to the nut body 2, making the threaded connection between the nut body 2 and the screw body 1 tighter, preventing loosening, and allowing the height of the nut body 2 to be finely adjusted so that the rubber head 203 is at the same height as the appropriate reserved hole 102. At the same time, the guide bar 501 can prevent the nut body 2 from accidentally coming off the outside of the screw body 1.

[0027] After the nut body 2 is tightened, the mounting ring 201 can drive the three sets of insert rods 202 to rotate at the upper end of the nut body 2, so that the rubber head 203 can be aligned with the appropriate reserved hole 102. By sliding the insert rods 202 inside the mounting ring 201, the rubber head 203 can be inserted into the appropriate reserved hole 102, thereby locking the nut body 2 and preventing the nut body 2 from loosening. When disassembling, you only need to apply force along the axial direction of the insert rods 202 to pull out the rubber head 203 and unlock the nut body 2. Disassembly is convenient.

[0028] Through the above steps, the mounting ring 201 can drive the three sets of insert rods 202 to rotate at the upper end of the nut body 2, aligning the rubber head 203 with the appropriate pre-drilled hole 102. By sliding the insert rod 202 inside the mounting ring 201, the rubber head 203 can be inserted into the appropriate pre-drilled hole 102, thereby locking the nut body 2 and preventing it from loosening. During disassembly, simply apply force along the axial direction of the insert rod 202 to pull out the rubber head 203 and unlock the nut body 2. Disassembly is convenient. This solves the problem that after traditional studs are installed, the nut is prone to loosening due to vibration or external force, affecting the reliability of the connection. To solve the loosening problem, it is usually necessary to add an anti-loosening washer or use double nuts, requiring more small parts to be carried, which are easy to lose during transport. Alternatively, thread-locking glue can be filled at the connection between the nut and the screw, which has a good anti-loosening effect, but makes subsequent disassembly difficult.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A stud and a matching nut, comprising a stud body (1) and a nut body (2), wherein the nut body (2) is threadedly connected to the periphery of the stud body (1), characterized in that: It also includes a groove (101), a reserved hole (102), a mounting ring (201), a plug rod (202), and a rubber head (203). Three sets of grooves (101) are provided on the outer periphery of the screw body (1). The three sets of grooves (101) are evenly arranged in a circle around the axis of the screw body (1). Each set of grooves (101) has multiple sets of linearly arranged reserved holes (102) inside. The mounting ring (201) is rotatably connected to the inside of the nut body (2). Three sets of plug rods (202) are slidably connected inside the mounting ring (201). The three sets of plug rods (202) are evenly arranged in a circle around the axis of the nut body (2). The rubber head (203) is fixedly installed on one end of the plug rod (202). The rubber head (203) is located inside a set of reserved holes (102).

2. The stud and matching nut according to claim 1, characterized in that: The cross-sectional area of ​​the rubber head (203) is larger than the cross-sectional area of ​​the reserved hole (102).

3. The stud and matching nut according to claim 1, characterized in that: The lower end of the screw body (1) is provided with a tapered part (3).

4. A stud and matching nut according to claim 1, characterized in that: The upper end of the screw body (1) is provided with a smooth part (4), and the upper end of the smooth part (4) is provided with an internal hexagonal hole (401).

5. A stud and matching nut according to claim 4, characterized in that: Three sets of guide bars (501) are fixedly installed on the periphery of the smooth part (4), and three sets of guide grooves (502) are opened inside the nut body (2). The guide grooves (502) correspond to the guide bars (501).

6. A stud and matching nut according to claim 1, characterized in that: The outer surface of the nut body (2) is provided with anti-slip serrations (204).

7. A stud and matching nut according to claim 1, characterized in that: An elastic washer (6) is fixedly installed at the lower end of the nut body (2), and the elastic washer (6) has a spiral structure.

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