Anti-corrosion locking nut

Abstract

The utility model discloses an anti-corrosion locking nut, and particularly relates to the technical field of locking nuts, the anti-corrosion locking nut comprises a nut body, the surface of the nut body is plated with an anti-corrosion layer, a locking threaded hole is formed in the nut body, and a protective gasket is arranged on the outer side of the end, close to the locking threaded hole, of the outer surface of the nut body. And through holes convenient to disassemble are formed in the positions, close to the corners, of the interior of the nut body, an internal thread groove is formed in one outer wall of the nut body, an oil injection hole communicating with the interior of the locking threaded hole is formed in the internal thread groove, and a plugging piece used for plugging the oil injection hole is connected to the interior of the internal thread groove. Under the condition that a wrench tool is lacked to tighten or loosen the nut, other rod-shaped objects capable of being inserted into the convenient-to-disassemble through hole can be used for achieving the screwing effect, and the nut body can be rotated for disassembly in the mode that a small bolt is screwed into the internal thread groove. In other words, through cooperation with the conveniently-disassembled through hole, various tightening or disassembling modes can be provided for the nut under the tool-free condition.

Description

Technical Field

[0001] The utility model relates to the technical field of locking nuts, and more specifically, to an anti-corrosion locking nut. Background Art

[0002] Locking nut is a kind of nut widely used in machinery and other industries. Its working principle is to use the friction between the nut and the bolt for self-locking. However, the reliability of this self-locking will be reduced under dynamic load. In some important occasions, we will take some anti-loosening measures to ensure the reliability of nut locking.

[0003] According to the anti-corrosion locking nut disclosed in the Chinese patent with the announcement number CN220204313U, the effect of the nut structure adopted by the nut is that it is convenient for users to remove the nut body without touching other disassembly tools, reducing the friction between the disassembly tool and the contact surface of the nut body under the rotation of external force for a long time, causing wear on the surface of the nut body, and lubricating the connection between the nut body and the screw to avoid rust on the threads at the connection between the nut body and the screw, which makes it inconvenient to remove the nut body.

[0004] However, in the above-mentioned nut structure, the tool-free removal method is to rotate the sleeve and the sleeve rod to connect them in the groove body of the outer wall of the nut, and then rotate them out when disassembly is required. In actual use, this method is relatively small in size. Even if it is pulled out from the nut, its length is relatively limited, which results in a large force required to remove the nut, which is laborious and inconvenient. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an anti-corrosion locking nut.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an anti-corrosion locking nut, comprising a nut body with an anti-corrosion layer plated on the surface, a locking threaded hole is arranged inside the nut body, and a protective washer is arranged on the outside of the end of the outer surface of the nut body near the locking threaded hole, a disassembly through hole is arranged inside the nut body near each corner position, and an outer wall of the nut body is arranged with an internal thread groove, an oil filling hole connected to the interior of the locking threaded hole is arranged inside the internal thread groove, and a sealing member for sealing the oil filling hole is connected to the inside of the internal thread groove.

[0007] As a further improvement of the technical solution of the utility model, the protective washer is made of rubber, and the inner ring radius of the cross-section of the protective washer is larger than the outer diameter of the cross-section of the locking threaded hole, and the protective washer is fixed to the outer surface of the nut body by glue.

[0008] As a further improvement of the technical solution of the utility model, the plurality of easy-to-dismantle through holes are all through holes with the same structure and size, and the plurality of easy-to-dismantle through holes are arranged in a circular array with the center position of the locking threaded hole as the center.

[0009] As a further improvement of the technical solution of the utility model, the sealing member includes a baffle plate arranged inside the internal thread groove, the outer wall of the baffle plate is provided with a lifting ring, and the inner wall of the baffle plate is connected to a sealing plug inserted into the oil filling hole.

[0010] As a further improvement of the technical solution of the utility model, the outer diameter of the vertical section of the oil filling hole is smaller than the inner diameter of the vertical section of the internal thread groove.

[0011] As a further improvement of the technical solution of the utility model, the lifting ring and the baffle are made of stainless steel, and the lifting ring and the baffle are welded and fixed.

[0012] As a further improvement of the technical solution of the utility model, the sealing plug is fixed to the baffle by welding, and the end of the sealing plug is a conical structure, and the outer surface of the sealing plug is wrapped with a rubber sleeve.

[0013] Beneficial effects of the utility model:

[0014] 1. By providing a plurality of easy-to-dismantle through holes of the same structure size, and the plurality of easy-to-dismantle through holes are arranged in a circular array with the center position of the locking threaded hole as the center, it is convenient to reduce manufacturing materials and reduce costs on the one hand, and on the other hand, it is convenient to use other rod-shaped objects that can be inserted into the easy-to-dismantle through holes to achieve the effect of twisting when there is no wrench tool to tighten or loosen the nut. In addition, by providing an internal thread groove, the inner diameter of the internal thread groove can be designed to match some small bolt external thread structures. In the absence of a wrench tool, the nut body can be rotated to disassemble by screwing in a small bolt, that is, the easy-to-dismantle through hole can provide a variety of tightening or disassembly methods for the nut without tools;

[0015] 2. An oil filling hole connected to the interior of the locking threaded hole is provided inside the internal thread groove, and a sealing piece is provided. When in use, the operator takes out the sealing piece as needed, and fills oil from the oil filling hole to the inner wall of the locking threaded hole to improve the lubrication effect. The oil filling hole is sealed with a sealing plug on the sealing piece. The end of the sealing plug is a conical structure, which is easier to be inserted into the interior of the oil filling hole. The outer surface of the sealing plug is wrapped with a rubber sleeve, which can effectively seal the position of the oil filling hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure after the blocking piece in the utility model is removed.

[0018] Figure 3 It is a structural schematic diagram of the blocking member in the utility model.

[0019] Figure 4 It is a schematic diagram of the communication structure between the oil filling hole and the locking threaded hole in the utility model.

[0020] The accompanying drawings are marked as follows: 1. nut body; 2. locking threaded hole; 3. protective gasket; 4. easy-to-dismantle through hole; 5. internal thread groove; 6. oil filling hole; 7. sealing part; 701. baffle; 702. lifting ring; 703. sealing plug. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As attached Figure 1-4 An anti-corrosion locking nut is shown, comprising a nut body 1 with an anti-corrosion layer on the surface, a locking threaded hole 2 is arranged inside the nut body 1, and a protective washer 3 is arranged on the outside of the end of the outer surface of the nut body 1 near the locking threaded hole 2, a convenient disassembly through hole 4 is arranged near each corner position inside the nut body 1, and an outer wall of the nut body 1 is provided with an internal thread groove 5, an oil filling hole 6 connected to the inside of the locking threaded hole 2 is arranged inside the internal thread groove 5, and a sealing member 7 for sealing the oil filling hole 6 is connected to the inside of the internal thread groove 5.

[0023] As attached Figure 1-2 As shown, the protective washer 3 is made of rubber, and the inner ring radius of the cross-section of the protective washer 3 is larger than the outer diameter of the cross-section of the locking threaded hole 2. The protective washer 3 is bonded and fixed to the outer surface of the nut body 1 by glue. The provision of the protective washer 3 facilitates buffering between the contacted object during the tightening operation, and can also reduce the wear on the end edge of the locking threaded hole 2.

[0024] As attached Figure 1-2 As shown, the multiple easy-to-dismantle through holes 4 are all through holes with the same structural size, and the multiple easy-to-dismantle through holes 4 are arranged in a circular array with the center position of the locking threaded hole 2 as the center. On the one hand, it is convenient to reduce manufacturing materials and reduce costs. On the other hand, when there is no wrench tool to tighten or loosen the nut, other rod-shaped objects that can be inserted into the easy-to-dismantle through hole 4 can be used to achieve the twisting effect.

[0025] As attached Figure 1-4As shown, the sealing member 7 includes a baffle 701 arranged inside the internal thread groove 5, a lifting ring 702 is arranged on the outer wall of the baffle 701, and the inner wall of the baffle 701 is connected to a sealing plug 703 inserted into the oil filling hole 6, the outer diameter of the vertical section of the oil filling hole 6 is smaller than the inner diameter of the vertical section of the internal thread groove 5, the lifting ring 702 and the baffle 701 are made of stainless steel, and the lifting ring 702 and the baffle 701 are welded and fixed, the sealing plug 703 and the baffle 701 are welded and fixed, and the end of the sealing plug 703 is a conical structure, and the outer surface of the sealing plug 703 is wrapped with a rubber sleeve, and the provided sealing member 7 can effectively seal the position of the oil filling hole 6.

[0026] Working principle: This utility model designs an anti-corrosion locking nut, the specific structure is as shown in the attached manual. Figure 1-4 As shown, in the present technical solution, a through hole 4 for easy disassembly is provided near each corner position inside the nut body 1, and the multiple through holes 4 for easy disassembly are all through holes with the same structure and size, and the multiple through holes 4 are arranged in a circular array with the center position of the locking threaded hole 2 as the center. On the one hand, it is convenient to reduce manufacturing materials and reduce costs. On the other hand, it is convenient to use other rod-shaped objects that can be inserted into the through hole 4 to achieve the effect of twisting when there is no wrench tool to tighten or loosen the nut. By providing an internal thread groove 5, the inner diameter of the internal thread groove 5 can be designed to match some small bolt external thread structures. In the absence of a wrench tool, the nut body 1 can be rotated to disassemble by screwing in a small bolt. The nut can be easily tightened or disassembled by the user by using the through hole 4. The nut can be easily tightened or disassembled by the user by using the through hole 4. The nut can be easily tightened or disassembled by the user by using the through hole 4.

[0027] Among them, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An anti-corrosion locking nut, comprising a nut body (1) having an anti-corrosion layer plated on the surface, characterized in that: The nut body (1) is provided with a locking threaded hole (2) inside, and a protective washer (3) is provided on the outer side of the end of the outer surface of the nut body (1) near the locking threaded hole (2), the nut body (1) is provided with a disassembly through hole (4) near each corner position inside, and an outer wall of the nut body (1) is provided with an internal thread groove (5), the internal thread groove (5) is provided with an oil filling hole (6) connected to the inside of the locking threaded hole (2), and the internal thread groove (5) is connected with a sealing member (7) for sealing the oil filling hole (6).

2. The anti-corrosion locking nut according to claim 1, characterized in that: The protective washer (3) is made of rubber, and the inner ring radius of the cross section of the protective washer (3) is greater than the outer diameter of the cross section of the locking threaded hole (2). The protective washer (3) is fixed to the outer surface of the nut body (1) by glue.

3. The anti-corrosion locking nut according to claim 1, characterized in that: The plurality of easy-to-dismantle through holes (4) are all through holes with the same structure and size, and the plurality of easy-to-dismantle through holes (4) are arranged in a circular array with the center position of the locking threaded hole (2) as the center of the circle.

4. The anti-corrosion locking nut according to claim 1, characterized in that: The sealing member (7) comprises a baffle (701) arranged inside the internal thread groove (5), the outer wall of the baffle (701) is provided with a lifting ring (702), and the inner wall of the baffle (701) is connected to a sealing plug (703) inserted into the oil filling hole (6).

5. The anti-corrosion locking nut according to claim 4, characterized in that: The outer diameter of the vertical section of the oil filling hole (6) is smaller than the inner diameter of the vertical section of the internal thread groove (5).

6. The anti-corrosion locking nut according to claim 4, characterized in that: The lifting ring (702) and the baffle plate (701) are made of stainless steel, and the lifting ring (702) and the baffle plate (701) are fixed by welding.

7. The anti-corrosion locking nut according to claim 4, characterized in that: The sealing plug (703) and the baffle (701) are welded and fixed, and the end of the sealing plug (703) is a conical structure, and the outer surface of the sealing plug (703) is wrapped with a rubber sleeve.

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