Anti-corrosion sealing locking nut

Abstract

The utility model relates to the technical field of nuts, and discloses an anti-corrosion sealing locking nut which comprises a nut body, a nut neck top is fixedly installed at the bottom of the nut body, a clamping assembly is arranged on the nut body, and the clamping assembly comprises a round hole. According to the anti-corrosion sealing locking nut, in order to enable the device to meet the connection requirement under the severe environment, the clamping assembly is arranged and used in cooperation with a conventional small hexagonal wrench to be inserted into a hexagonal groove of a threaded block and rotate, the threaded block moves along a threaded hole, and a short column is pushed to drive an arc-shaped block to slide along a limiting groove; the arc-shaped blocks apply clamping force from the periphery of the bolt and are tightly attached to the surface of the bolt, relative looseness of the bolt and the nut is avoided, the circular blocks synchronously slide along the circular grooves along with the arc-shaped blocks, the springs provide continuous pre-tightening force after being compressed, and it is guaranteed that the clamping force is stable in long-term use. The upper sealing ring is extruded and deformed by the arc-shaped block to fill a gap between the arc-shaped block and the bolt.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field, concretely is a kind of anticorrosive sealing locking nut. BACKGROUND

[0002] In the field of mechanical connection, as the core fastener, the stability and durability of nut directly determine the overall safety of equipment.

[0003] The locking nut is composed of an anticorrosive base, a sealing assembly and an anti-loosening structure. During assembly, the nut is engaged with the bolt through the main thread, and the fluororubber sealing ring is deformed under pressure during tightening to tightly fit the surface of the connecting piece to achieve sealing. The elastic washer cooperates with the secondary thread to offset the loosening torque caused by vibration. The anticorrosive base and the coating jointly resist external corrosive media.

[0004] However, the above-mentioned device has obvious deficiencies in use. The traditional locking nut relies only on the friction force of the thread itself to prevent loosening, and there is no additional clamping structure. Under vibration and impact conditions, the thread pair is prone to micro-slippage, resulting in a decrease in pre-tightening force and a high loosening rate. Regular manual tightening is required, which increases maintenance costs and poses a safety hazard. Therefore, we propose an anticorrosive sealing locking nut. SUMMARY

[0005] The utility model aims to provide an anticorrosive sealing locking nut to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An anticorrosive sealing locking nut includes a nut body, a nut neck top fixedly installed at the bottom of the nut body, a clamping assembly provided on the nut body, and the clamping assembly includes:

[0008] A circular hole is formed in the nut body, a threaded hole is formed in the interior of the nut body, a limiting groove is formed in the nut body, and a circular groove is formed in the interior of the nut body.

[0009] A threaded block is screw-mounted in the interior of the nut body, a short column is rotatably installed at one end of the threaded block, and an arc-shaped block is fixedly installed on the short column.

[0010] A circular block is fixedly installed on the arc-shaped block, one end of a spring is fixedly installed on the circular block, and an upper sealing ring is clamped and installed on the nut body.

[0011] In further schemes, the circular hole, threaded hole, limiting groove, circular groove, threaded block, short column, arc-shaped block, circular block, spring and upper sealing ring are provided.

[0012] In a further scheme, the threaded block is provided with a hexagonal slot at the other end, which is adapted to a conventional hexagonal wrench, the threaded block is arranged inside the threaded hole, and the arc-shaped block slides inside the limiting slot.

[0013] In a further scheme, the round block slides inside the round slot, the spring is arranged inside the round slot, the other end of the spring is fixedly installed inside the nut body, and the upper sealing ring is arranged between the groups of arc-shaped blocks.

[0014] In a further scheme, the nut neck is provided with an auxiliary assembly, the auxiliary assembly comprises a mounting hole, the inner wall of the nut neck is provided with the mounting hole, the lower sealing ring is clamped and installed on the nut neck, the anti-skid block is fixedly installed on the lower sealing ring, and the blocking ring is fixedly installed at the bottom of the nut neck.

[0015] In a further scheme, the mounting hole and the anti-skid block are provided in multiple groups, and the multiple groups of anti-skid blocks correspond to the positions of the multiple groups of mounting holes.

[0016] In a further scheme, the blocking ring is arranged below the lower sealing ring, and the mounting hole, the lower sealing ring, the anti-skid block and the blocking ring are arranged at the bottom of the nut neck.

[0017] Compared with the prior art, the anti-corrosion sealing lock nut has the following beneficial effects:

[0018] 1. The anti-corrosion sealing lock nut meets the connection requirements in harsh environments, the clamping assembly is arranged, the assembly is used in cooperation with a conventional small hexagonal wrench to be inserted into the hexagonal slot of the threaded block and rotated, the threaded block moves along the threaded hole, the short column drives the arc-shaped block to slide along the limiting slot, the multiple groups of arc-shaped blocks exert clamping force from the periphery of the bolt, tightly adhere to the surface of the bolt, avoid relative loosening of the bolt and the nut, the round block slides along the round slot synchronously with the arc-shaped block, the spring provides continuous pre-tightening force after compression, and the clamping force is stable during long-term use; the upper sealing ring is deformed by being extruded by the arc-shaped block, fills the gap between the arc-shaped block and the bolt, and blocks external water vapor and dust from entering the threaded connection.

[0019] 2. The anti-corrosion sealing lock nut prolongs the overall anti-corrosion life of the nut, the auxiliary assembly is arranged, the assembly cooperates with the lower sealing ring to be clamped at the bottom of the nut neck, the blocking ring limits the axial displacement, when the nut is tightened, the lower sealing ring is extruded to adhere to the surface of the connecting piece, a double sealing structure is formed in cooperation with the upper sealing ring, corrosion medium is completely blocked from invading, the multiple groups of anti-skid blocks correspond to the positions of the mounting holes, the anti-skid blocks are embedded into the mounting holes during the tightening process, and the frictional resistance of the nut neck and the connecting piece is increased. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2 Another view of the overall structure of the present application is shown in the schematic diagram.

[0022] Figure 3 The overall structure of the present application is shown in the schematic diagram.

[0023] Figure 4 The partial structure of the present application is shown in the schematic diagram.

[0024] Figure 5 The partial structure of the present application is shown in the schematic diagram.

[0025] Figure 6 The partial structure of the present application is shown in the schematic diagram.

[0026] Explanation of the reference numerals:

[0027] 1, nut body; 2, nut neck;

[0028] 3, clamping assembly; 31, round hole; 32, threaded hole; 33, limiting groove; 34, round groove; 35, threaded block; 36, short column; 37, arc block; 38, round block; 39, spring; 310, upper sealing ring;

[0029] 4, auxiliary assembly; 41, mounting hole; 42, lower sealing ring; 43, anti-skid block; 44, blocking ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In the present application, the term "upper" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is mainly used to better describe the present application and its embodiments, and is not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Also, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0032] Please refer to Figures 1-6 The present application provides a technical solution:

[0033] The utility model provides an anticorrosive sealing lock nut, including nut body 1, nut body 1 bottom fixed mounting has nut neck 2 top.

[0034] In an embodiment of the utility model, the nut body 1 is provided with a clamping assembly 3, the clamping assembly 3 includes a round hole 31, the nut body 1 is provided with the round hole 31, the nut body 1 is internally provided with a threaded hole 32, the nut body 1 is provided with a limiting groove 33, the nut body 1 is internally provided with a circular groove 34, the nut body 1 is internally provided with a threaded block 35, one end of the threaded block 35 is rotatably installed with a short column 36, the short column 36 is fixedly installed with an arc block 37, the arc block 37 is fixedly installed with a round block 38, one end of the round block 38 is fixedly installed with a spring 39, the nut body 1 is clampedly installed with an upper sealing ring 310, the round hole 31, the threaded hole 32, the limiting groove 33, the circular groove 34, the threaded block 35, the short column 36, the arc block 37, the round block 38, the spring 39 and the upper sealing ring 310, the other end of the threaded block 35 is provided with a hexagonal groove and is matched with a conventional hexagonal wrench, the threaded block 35 is arranged in the threaded hole 32, the arc block 37 slides in the limiting groove 33, the round block 38 slides in the circular groove 34, the spring 39 is arranged in the circular groove 34, the other end of the spring 39 is fixedly installed in the nut body 1, and the upper sealing ring 310 is arranged between a plurality of arc blocks 37.

[0035] When the nut body 1 is preliminarily tightened with a bolt, the conventional small hexagonal wrench is inserted into the hexagonal groove of the threaded block 35 through the round hole 31 and is rotated, the threaded block 35 is threadedly installed in the threaded hole 32 of the nut body 1, the threaded block 35 moves along the threaded hole 32 to the bolt, in the moving process of the threaded block 35, the short column 36 at the end of the threaded block 35 pushes the arc block 37 to slide along the limiting groove 33 of the nut body 1, a plurality of arc blocks 37 are synchronously close to the bolt, uniform clamping force is applied from the periphery of the bolt, the arc block 37 is tightly attached to the surface of the bolt, effectively prevents the bolt and the nut from being relatively loose under the working conditions of vibration and impact, meanwhile, the round block 38 on the arc block 37 slides along the circular groove 34 synchronously with the arc block 37, the spring 39 in the circular groove 34 is compressed, the spring 39 after compression applies continuous pre-tightening force to the round block 38, ensures that the clamping force of the arc block 37 to the bolt is stable in long-term use, avoids clamping failure caused by component wear, in addition, the upper sealing ring 310 arranged between a plurality of arc blocks 37 is deformed under the extrusion of the arc block 37, fills the gap between the arc block 37 and the surface of the bolt, blocks the impurities such as external water vapor and dust from entering the threaded connection, plays a sealing and anticorrosion role.

[0036] In an embodiment of the utility model, nut neck 2 is provided with auxiliary assembly 4, auxiliary assembly 4 includes mounting hole 41, and mounting hole 41 is set up on the inner wall of nut neck 2, and nut neck 2 is clamped and installed with lower sealing ring 42, and lower sealing ring 42 is fixedly installed with anti-skid block 43, and nut neck 2 bottom is fixedly installed with blocking ring 44, and mounting hole 41 and anti-skid block 43 are provided with multiple groups, and multiple groups of anti-skid block 43 correspond to multiple groups of mounting hole 41 in position, and blocking ring 44 is arranged below lower sealing ring 42, and mounting hole 41, lower sealing ring 42, anti-skid block 43 and blocking ring 44 are arranged at the bottom of nut neck 2.

[0037] When the embodiment is used, before the cooperation of nut main body 1 and bolt, lower sealing ring 42 is clamped at the bottom of nut neck 2, and the axial displacement of lower sealing ring 42 can be limited by blocking ring 44 at the bottom of nut neck 2, to prevent it from falling off during installation, when the nut is tightened as a whole, lower sealing ring 42 is pressed and connected to the surface of the connecting piece, and forms a double sealing structure of upper and lower correspondence with upper sealing ring 310 of clamping assembly 3, to completely block the medium such as rainwater and corrosive liquid from invading the core area of threaded connection, and greatly improve the corrosion resistance, at the same time, multiple groups of anti-skid block 43 on lower sealing ring 42 correspond to the mounting hole 41 of nut neck 2 in position, and in the process of nut tightening, anti-skid block 43 will be embedded in mounting hole 41, to increase the frictional resistance between nut neck 2 and the connecting piece, and further prevent the loosening of the nut as a whole.

[0038] Among them, the standard parts used in the application file can be purchased from the market, the specific connection mode of each part is connected by using the conventional means such as rivet, welding in the prior art, and the standard parts are conventional models in the prior art, and the connection of the circuit adopts the conventional connection mode in the prior art.

[0039] It should be noted that the above-mentioned electrical components are all products of the prior art, which are selected, installed and debugged by the skilled person according to the needs of use, to ensure that each electrical component can work normally, and the components are all general standard parts or components known to the skilled person, and the structure and principle thereof can be known by the skilled person through technical manual or through conventional experimental method, which are not limited here, and the matching structure of the hydraulic drive structure in the application file, such as hydraulic tank and hydraulic pump, is the existing equipment, which is not described in detail here.

[0040] The above has made a detailed description of the utility model in general, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general skilled person in the technical field. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A corrosion-resistant sealing lock nut, comprising a nut body (1), wherein a nut neck (2) is fixedly installed at the bottom of the nut body (1), characterized in that: A clamping assembly (3) is provided on the nut body (1), and the clamping assembly (3) includes: A circular hole (31) is provided on the nut body (1), a threaded hole (32) is provided inside the nut body (1), a limit groove (33) is provided on the nut body (1), and a circular groove (34) is provided inside the nut body (1). Threaded block (35), the nut body (1) is internally threaded with a threaded block (35), a short column (36) is rotatably mounted on one end of the threaded block (35), and an arc-shaped block (37) is fixedly mounted on the short column (36). A circular block (38) is fixedly installed on the arc block (37), and one end of a spring (39) is fixedly installed on the circular block (38). An upper sealing ring (310) is snapped onto the nut body (1).

2. The corrosion-resistant sealing lock nut according to claim 1, characterized in that: The circular hole (31), threaded hole (32), limiting groove (33), circular groove (34), threaded block (35), short column (36), arc block (37), circular block (38), spring (39) and upper sealing ring (310).

3. The anti-corrosion sealing lock nut according to claim 1, characterized in that: The other end of the threaded block (35) is provided with a hexagonal groove to be compatible with a conventional hexagonal wrench. The threaded block (35) is located inside the threaded hole (32), and the arc-shaped block (37) slides inside the limiting groove (33).

4. The anti-corrosion sealing lock nut according to claim 1, characterized in that: The circular block (38) slides inside the circular groove (34), the spring (39) is set inside the circular groove (34), the other end of the spring (39) is fixedly installed inside the nut body (1), and the upper sealing ring (310) is set between multiple sets of arc blocks (37).

5. The corrosion-resistant sealing lock nut according to claim 1, characterized in that: An auxiliary component (4) is provided on the nut neck (2). The auxiliary component (4) includes a mounting hole (41). The mounting hole (41) is opened on the inner wall of the nut neck (2). A lower sealing ring (42) is snapped onto the nut neck (2). An anti-slip block (43) is fixedly installed on the lower sealing ring (42). A barrier ring (44) is fixedly installed at the bottom of the nut neck (2).

6. The corrosion-resistant sealing lock nut according to claim 5, characterized in that: The mounting holes (41) and anti-slip blocks (43) are provided in multiple sets, and the positions of the multiple sets of anti-slip blocks (43) correspond to the positions of the multiple sets of mounting holes (41).

7. The corrosion-resistant sealing lock nut according to claim 5, characterized in that: The barrier ring (44) is located below the lower sealing ring (42), and the mounting hole (41), lower sealing ring (42), anti-slip block (43) and barrier ring (44) are located at the bottom of the nut neck (2).

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