High-reliability all-metal locking flange nut

Abstract

The utility model relates to the field of flange nuts, and discloses a high-reliability all-metal locking flange nut which comprises a nut body, the nut body is a hexagonal nut, six head grooves are formed in the six corners of the nut body, the head grooves are 90-degree V-shaped grooves, the bottom edges of the six head grooves are connected end to end, and the bottom edges of the six head grooves are connected end to end. A flower-shaped groove is formed in the top end of the interior of the nut body and is of a quincunx structure, and the flower-shaped groove is of a chamfer structure and is provided with a circular opening. The nut body is arranged at the threaded end of the bolt in a sleeved mode, at the moment, the flower type screwdriver head is used, the screwdriver head end of the flower type screwdriver head is inserted into the flower type groove, and at the moment, due to the quincunx structure of the flower type groove, even if the interior of the nut body is soaked by lubricating oil or other liquid, corresponding rotation of the flower type screwdriver head on the flower type groove cannot be affected; therefore, it is guaranteed that the nut body can be stably and firmly screwed into the bolt, and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of flange nuts, in particular to a high-reliability all-metal locking flange nut. Background Art

[0002] A flange nut, also known as a washer nut, serrated nut, hexagonal flange nut, or flange nut, is a nut with a wide flange on one end. This flange acts as an integrated washer, distributing the nut's pressure across the components being secured, thereby reducing the likelihood of component damage and increasing the stability of the connection. Flange nuts are mostly hexagonal in shape and are typically made of hardened steel, often zinc-plated for corrosion resistance and aesthetics.

[0003] Flange nuts are widely used in various mechanical equipment and piping systems. Their primary functions and features include connection and fixing, sealing, adjustment and repair, rapid disassembly and assembly, and resistance to high pressure and high temperatures. Flange nuts with an added locking function are called locking flange nuts. Depending on the material used, they can be categorized as nylon locking flange nuts or all-metal locking flange nuts.

[0004] Today's common metal locking flange nuts are mostly hollow with open ends. They usually need to be tightened manually during installation. Since they mostly work in mechanical equipment and piping systems, when their outer walls are contaminated with lubricating oil or other liquids, it is difficult to screw them into the bolts. As a result, they may become loose during equipment operation, which may cause damage to the equipment and affect its operating efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a high-reliability all-metal locking flange nut to solve the problem that the locking flange nut is difficult to be screwed into a bolt when the outer wall of the locking flange nut is contaminated with lubricating oil or other liquids.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions: a high-reliability all-metal locking flange nut, including a nut body, the nut body is a hexagonal nut, six head grooves are provided at the six corners of the nut body, the head grooves are ninety-degree V-shaped grooves, the bottom edges of the six head grooves are connected end to end, and a flower-shaped groove is provided at the inner top of the nut body, the flower-shaped groove is a plum blossom-shaped structure, the flower-shaped groove is a chamfered structure and has a circular opening.

[0007] Preferably, a flange washer is connected to the bottom surface of the nut body, a first threaded hole is opened inside the nut body, a first threaded thread is set inside the first threaded hole, a second threaded hole is opened inside the flange washer, a second threaded thread is set inside the second threaded hole, and the first thread and the second thread are both structures with V-shaped bevel grooves.

[0008] Preferably, three pressure point grooves are provided on the top surface of the nut body, and the three pressure point grooves are arranged at equal intervals.

[0009] Preferably, a gear ring is provided on the bottom surface of the flange gasket.

[0010] Preferably, the nut body and the flange washer are an integrally formed structure, and the first thread and the second thread are an integrally formed continuous structure.

[0011] Preferably, the outer wall of the flange gasket is a circular chamfered structure.

[0012] Compared with the existing technology, a high-reliability all-metal locking flange nut adopting the above technical solution has the following beneficial effects:

[0013] 1. During use, the nut body and the flange gasket are an integrally formed structure, which is referred to as the nut body below. Select the corresponding nut body according to the size of the bolt to be fixed, and place the nut body on the threaded end of the bolt. At this time, use a flower-shaped screwdriver bit that matches the flower-shaped groove and insert its bit end into the flower-shaped groove. At this time, due to the plum blossom structure of the flower-shaped groove, even if the interior of the nut body is infiltrated by lubricating oil or other liquids, it will not affect the corresponding rotation of the flower-shaped screwdriver bit on the flower-shaped groove, thereby ensuring that the nut body can be stably and firmly screwed into the bolt, thereby ensuring the stable operation of the equipment;

[0014] 2. During use, the first and second thread are an integrally formed continuous structure, hereinafter referred to as the first thread. The first thread is a structure with a V-shaped bevel groove, which ensures that after the nut body is screwed into the bolt hole, the internal stress of the metal material will cause an interference fit between the nut body and the bolt, thereby generating friction, making it impossible for the nut body to fall out of the bolt. The friction generated by this interference fit can effectively prevent the nut from loosening, thereby improving the reliability and safety of the connection;

[0015] 3. During use, three pressure points are formed through the three pressure point grooves set on the top surface of the nut body, so that the bolt can realize the locking function through the physical properties of the metal material. The entire product is made of all-metal materials, which increases the running load of the first thread, ensures the hardness of the product, and thus improves the wear resistance of the surface, greatly improving its load-bearing capacity. The gear ring connected to the bottom surface of the flange gasket further strengthens the friction between the entire product and the equipment surface, thereby further improving the reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a perspective view of an embodiment.

[0017] Figure 2 It is a sectional stereoscopic view of the nut body and flange gasket of the embodiment.

[0018] Figure 3 Schematic top view of an embodiment.

[0019] Figure 4 Schematic cross-sectional view of an embodiment.

[0020] Figure 5 It is a front schematic diagram of an embodiment.

[0021] In the figure: 1. Nut body; 2. Head groove; 3. Flower-shaped groove; 4. Flange washer; 5. First threaded hole; 6. First thread; 7. Second threaded hole; 8. Second thread; 9. Pressure point groove; 10. Gear ring. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-Figure 3 As shown, a high-reliability all-metal locking flange nut includes a nut body 1, which is a hexagonal nut. Six head grooves 2 are provided at the six corners of the nut body 1. The head grooves 2 are ninety-degree V-shaped grooves. The bottom edges of the six head grooves 2 are connected end to end. A flower groove 3 is provided at the top inner surface of the nut body 1. The flower groove 3 is a plum blossom-shaped structure. The flower groove 3 is a chamfered structure and has a circular opening.

[0024] During use, the nut body 1 and the flange gasket 4 are an integrally formed structure, which are referred to as the nut body 1 below. The corresponding nut body 1 is selected according to the size of the bolt to be fixed, and the nut body 1 is placed on the threaded end of the bolt. At this time, a flower-shaped screwdriver bit that matches the flower-shaped groove 3 is used, and its bit end is inserted into the flower-shaped groove 3. At this time, due to the plum blossom structure of the flower-shaped groove 3, even if the interior of the nut body 1 is infiltrated with lubricating oil or other liquids, it will not affect the corresponding rotation of the flower-shaped screwdriver bit to the flower-shaped groove 3, thereby ensuring that the nut body 1 can be stably and firmly screwed into the bolt, thereby ensuring the stable operation of the equipment.

[0025] like Figure 1 、 Figure 2 and Figure 4 As shown, the bottom surface of the nut body 1 is connected to a flange washer 4, a first threaded hole 5 is opened inside the nut body 1, a first threaded hole 6 is arranged inside the first threaded hole 5, a second threaded hole 7 is opened inside the flange washer 4, a second threaded hole 7 is arranged inside the second threaded hole 7, and the first threaded thread 6 and the second threaded thread 8 are both structures with V-shaped bevel grooves.

[0026] During use, the first thread 6 and the second thread 8 are an integrally formed continuous structure, hereinafter referred to as the first thread 6. The first thread 6 is a structure with a V-shaped bevel groove, which ensures that after the nut body 1 is screwed into the bolt hole, the internal stress of the metal material will cause an interference fit between the nut body 1 and the bolt, thereby generating friction, making it impossible for the nut body 1 to fall off the bolt. The friction generated by this interference fit can effectively prevent the nut from loosening, thereby improving the reliability and safety of the connection.

[0027] like Figure 1-Figure 5 As shown, the top surface of the nut body 1 is provided with three pressure point grooves 9, and the three pressure point grooves 9 are arranged at equal intervals. The bottom surface of the flange gasket 4 is provided with a gear ring 10. The nut body 1 and the flange gasket 4 are an integrally formed structure, the first screw thread 6 and the second screw thread 8 are an integrally formed continuous structure, and the outer wall of the flange gasket 4 is a circular chamfered structure.

[0028] During use, three pressure point grooves 9 are set on the top surface of the nut body 1 to form three pressure points, so that the bolt can realize the locking function through the physical properties of the metal material. The entire product is made of all-metal materials, which increases the operating load of the first thread 6, ensures the hardness of the product, and thus improves the wear resistance of the surface, greatly improving its load-bearing capacity. The gear ring 10 connected to the bottom surface of the flange gasket 4 further strengthens the friction between the entire product and the equipment surface, thereby further improving the reliability of the connection.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-reliability all-metal locking flange nut, comprising a nut body (1), characterized in that: The nut body (1) is a hexagonal nut. Six head grooves (2) are provided at the six corners of the nut body (1). The head grooves (2) are ninety-degree V-shaped grooves. The bottom edges of the six head grooves (2) are connected end to end. A flower-shaped groove (3) is provided at the top end of the nut body (1). The flower-shaped groove (3) is a plum blossom-shaped structure. The flower-shaped groove (3) is a chamfered structure and presents a circular opening.

2. The high-reliability all-metal locking flange nut according to claim 1, characterized in that: The bottom surface of the nut body (1) is connected to a flange washer (4), a first threaded hole (5) is provided inside the nut body (1), a first threaded tooth (6) is provided inside the first threaded hole (5), a second threaded hole (7) is provided inside the flange washer (4), a second threaded tooth (8) is provided inside the second threaded hole (7), and both the first threaded tooth (6) and the second threaded tooth (8) are structures with V-shaped bevel grooves.

3. The high-reliability all-metal locking flange nut according to claim 1, characterized in that: The top surface of the nut body (1) is provided with three pressure point grooves (9), and the three pressure point grooves (9) are arranged at equal intervals.

4. The high-reliability all-metal locking flange nut according to claim 2, characterized in that: A gear ring (10) is provided on the bottom surface of the flange gasket (4).

5. The high-reliability all-metal locking flange nut according to claim 2, characterized in that: The nut body (1) and the flange washer (4) are an integrally formed structure, and the first thread (6) and the second thread (8) are an integrally formed continuous structure.

6. The high-reliability all-metal locking flange nut according to claim 2, characterized in that: The outer wall of the flange gasket (4) is a circular chamfered structure.

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