Manual fastening nut

Abstract

The utility model relates to the technical field of nuts, in particular to a manual fastening nut. The nut comprises a nut body, the nut body is of a circular structure, the outer diameter of the nut body is 34 mm, and the nut body is used for being installed with a fastened part in a matched mode. The center through hole is formed in the center of the nut body and used for allowing a bolt or a screw to penetrate through, and connection between the nut and the bolt or the screw is achieved; the hexagonal operation part is fixedly connected with the surface of the nut body, the size of the hexagonal operation part is matched with that of a common manual tool, and tightening and dismounting operation can be conveniently carried out; the external thread part is installed on the peripheral face of the nut body in a surrounding mode and used for being screwed with a component with internal threads, and the fastening function is achieved; and the positioning hole is formed in the surface of the hexagonal operation part. The problems that an existing nut is convenient to mount and dismount, reliable in connection, adaptive to special working conditions and the like are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field especially relates to a hand fastening nut. BACKGROUND

[0002] In the field of mechanical assembly and maintenance, hand fastening nuts are commonly used components for connecting and fixing various mechanical parts. However, there are some problems in the use of existing hand fastening nuts. For example, the installation and disassembly of some nuts are not convenient enough, affecting work efficiency; some nuts are prone to loosening after fastening, leading to unreliable connection and affecting the normal operation and safety of the equipment. In addition, the existing nuts may not meet the use requirements in some special working conditions in terms of structure design, such as application in vibrating environment or high-precision equipment.

[0003] The inventor believes that there are often the following defects: the existing nuts have certain problems in terms of installation and disassembly convenience, connection reliability and special working condition adaptability, which greatly tests the use performance and application range of the nuts; therefore, a hand fastening nut is proposed to solve the above problems. SUMMARY

[0004] The utility model discloses a hand fastening nut to solve the existing nut in prior art in installation and disassembly convenience, connection reliability and special working condition adaptability and so on have certain shortcomings.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hand fastening nut, including nut body, the nut body is circular structure, the nut body outer diameter is 34mm, is used for with the fastening component cooperation installation;Center through -hole, set up in the center position of nut body, is used for the bolt or screw rod, realizes the connection of nut and bolt or screw rod;Hexagonal operation part, the hexagonal operation part is fixedly connected with the surface of nut body, its size adapts commonly used hand tools, and convenient operation of tightening and disassembly;Outer thread part, the outer thread part surrounds and installs the outer periphery of nut body, is used for with the component of having inner thread and is screwed, realizes fastening function;Positioning hole, the positioning hole sets up on the surface of hexagonal operation part, the individual place of positioning hole is six, the positioning hole evenly distributes on the surface of hexagonal operation part, is used for when fastening with the positioning pin on the corresponding component cooperation, to accurately determine the installation position of nut.

[0006] The effect achieved by the above-mentioned component is that: by setting the hexagonal operation part, it is convenient to use hand tools for operation, improving the efficiency of installation and disassembly, and the positioning hole and the positioning matching pin of the corresponding component can accurately determine the installation position of the nut, effectively prevent the nut from loosening, improve the reliability of the connection, and at the same time, by selecting a specific material and controlling the roughness of the inner wall of the center through hole and other parameters, the nut can adapt to different working environments, meet the use requirements of high precision and special working conditions, and expand the application range of the nut.

[0007] Preferably, the material of the nut body is a nickel-based alloy material.

[0008] The effect achieved by the above-mentioned component is that: by setting the material of the nut body as a nickel-based alloy material, the use strength of the nut body is improved, and at the same time, the effect of resisting high temperature and corrosion is achieved, and the use range of the nut body is increased.

[0009] Preferably, the roughness Ra value of the inner wall of the center through hole is between 1.6μm and 6.3μm, and the inner surface of the center through hole is provided with a wear-resistant coating.

[0010] The effect achieved by the above-mentioned component is that: the friction force when the nut body is connected with a bolt or a screw is increased, and the practicability of the device is improved.

[0011] Preferably, the pitch of the threaded part is m6, and the thread accuracy meets 4h.

[0012] The effect achieved by the above-mentioned component is that: the stability and reliability when the nut body is connected with a bolt or a screw are increased.

[0013] Preferably, the six internal angle tolerances of the hexagonal operation part are ±0.5°.

[0014] The effect achieved by the above-mentioned component is that: the close cooperation with the hand tool is ensured, the slipping during operation is prevented, and the practicability of the device is improved.

[0015] Preferably, the diameter of the positioning hole is 2mm, and the depth of the positioning hole is 2mm.

[0016] The effect achieved by the above-mentioned component is that: the cooperation accuracy and stability of the positioning hole on the hexagonal operation part and the positioning pin are ensured.

[0017] The utility model discloses beneficial effect is: through setting up hexagonal operation part, convenient use hand tool is operated, has improved the efficiency of installation and dismounting, and the positioning hole and the positioning cooperation pin of corresponding component, can accurate determination nut installation position, effectively prevent nut loose, has improved the reliability of connection, select specific material and control center through -hole inner wall roughness etc. parameter simultaneously, make nut can adapt to different working environment, satisfy high accuracy and special working condition use requirement, expand the application scope of nut

[0018] Including the following operation steps:

[0019] S1 the center hole of nut body is aligned with bolt or screw rod, and is sleeved into;

[0020] S2 uses the manual tool of adaptation and cooperation with hexagonal operation part, according to the torque requirement of regulation, clockwise rotates nut body and carries out fastening;

[0021] S3 during fastening, the positioning hole and the positioning pin cooperation of corresponding component realize positioning and preliminary anti -loose;

[0022] S4 after fastening, checks the fastening state of nut body, ensures the connection firm between nut body and the fastening component, and there is no loose phenomenon. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0024] Figure 2 It is the test diagram of the utility model;

[0025] Figure 3 It is the bottom view of the utility model;

[0026] Figure 4 It is the sectional view of the utility model in Figure 1 .

[0027] Legend: 1, nut body;2, center through -hole;3, hexagonal operation part;4, outer thread part;5, positioning hole. DETAILED DESCRIPTION

[0028] Refer to Figures 1-4The utility model provides a technical scheme: a kind of manual fastening nut, including nut body 1, nut body 1 is circular structure, the outer diameter of nut body 1 is 34mm, for being installed with the fastening component cooperation;Center through-hole 2, it is set in the central position of nut body 1, for being equipped with bolt or screw rod, realize the connection of nut and bolt or screw rod;Hexagonal operating part 3, hexagonal operating part 3 is fixedly connected with the surface of nut body 1, its size adapts commonly used hand tools, convenient for tightening and disassembly operation;External thread part 4, external thread part 4 is installed around the outer periphery of nut body 1, for being screwed with the component with internal thread, realize fastening function;Positioning hole 5, positioning hole 5 is set on the surface of hexagonal operating part 3, the unit of positioning hole 5 is six, positioning hole 5 evenly distributes on the surface of hexagonal operating part 3, for being cooperated with the positioning pin on corresponding component when fastening, to accurately determine the installation position of nut, by setting hexagonal operating part 3, it is convenient to use hand tool to operate, improve the efficiency of installation and disassembly, and positioning hole 5 and the positioning cooperation pin of corresponding component, can accurately determine the installation position of nut, effectively prevent nut loosening, improve the reliability of connection, select specific material and control center through-hole 2 inner wall roughness parameter simultaneously, so that nut can adapt to different working environment, meet the use requirement of high accuracy and special working condition, expand the application range of nut, the material of nut body 1 is nickel base alloy material, by setting the material of nut body 1 nickel base alloy material, improve the use intensity of nut body 1, simultaneously have the effect of high temperature resistance, corrosion resistance, increase the use range of nut body 1, the center through-hole 2 inner wall roughness Ra value is between 1.6 μm-6.3 μm, the inner surface of center through-hole 2 is equipped with a layer of wear-resistant coating, increase the friction force when nut body 1 and bolt or screw rod are connected, improve the practicability of device, the pitch of thread part is m6, the thread tooth shape of external thread part 4 is triangle, and the thread accuracy meets 4h, increase the stability and reliability when nut body 1 and bolt or screw rod are connected, the six internal angle tolerance of hexagonal operating part 3 is ±0.5 °, ensure to be closely cooperated with hand tool, prevent skidding when operating, improve the practicability of device, the diameter of positioning hole 5 is 2mm, the depth of positioning hole 5 is 2mm, to guarantee the cooperation accuracy and stability of positioning pin of positioning hole 5 on hexagonal operating part 3, by setting hexagonal operating part 3, it is convenient to use hand tool to operate, improve the efficiency of installation and disassembly, and positioning hole 5 and the positioning cooperation pin of corresponding component, can accurately determine the installation position of nut, effectively prevent nut loosening, improve the reliability of connection, select specific material and control center through-hole 2 inner wall roughness parameter simultaneously, so that nut can adapt to different working environment, meet the use requirement of high accuracy and special working condition, expand the application range of nut.

[0029] Working principle, including the following operating steps:

[0030] S1 aligns the center hole of the nut body 1 with the bolt or screw rod and fits into it;

[0031] S2 uses a suitable hand tool to cooperate with the hexagonal operation part, rotates the nut body 1 clockwise according to the specified torque requirement, and fastens it;

[0032] S3 During the fastening process, the positioning hole 5 cooperates with the positioning pin of the corresponding part to realize positioning and preliminary anti-loosening;

[0033] S4 After the fastening is completed, the fastening state of the nut body 1 is checked to ensure that the connection between the nut body 1 and the fastened part is firm and there is no loosening phenomenon.

[0034] In the description of the utility model, it needs to be explained that, unless there is clear provision and limitation, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A hand tightening nut comprising a nut body (1), characterized in that: The nut body (1) is circular structure, the nut body (1) outer diameter is 34mm, for with the fastening component cooperation installation; Center through hole (2), set up in the center position of nut body (1), for the bolt or screw, realize the connection of nut and bolt or screw; Hexagonal operation part (3), the hexagonal operation part (3) is fixedly connected with the surface of nut body (1), its size is adapted to common hand tools, convenient for tightening and dismounting operation; Outer thread part (4), the outer thread part (4) is installed around the outer circumferential surface of nut body (1), for with the component with internal thread is screwed, realize the fastening function; Positioning hole (5), the positioning hole (5) is set up on the surface of hexagonal operation part (3), the individual of positioning hole (5) is six, the positioning hole (5) is evenly distributed on the surface of hexagonal operation part (3), for in fastening with the positioning pin on the corresponding component cooperation, to accurately determine the installation position of nut.

2. A hand tightenable nut according to claim 1, wherein: The material of the nut body (1) is nickel-based alloy material.

3. A hand tightenable nut according to claim 1, wherein: The center through hole (2) inner wall roughness Ra value is between 1.6 μm- 6.3 μm, the center through hole (2) inner surface is provided with a layer of wear-resistant coating.

4. A hand tightenable nut according to claim 1, wherein: The pitch of the outer thread part (4) is m6, and the thread accuracy meets 4h.

5. A hand tightenable nut according to claim 1, wherein: The six internal angle tolerance of the hexagonal operation part (3) is ±0.5°.

6. A hand tightenable nut according to claim 1, wherein: The diameter of the positioning hole (5) is 2mm, and the depth of the positioning hole (5) is 2mm.

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