Anti-loose clamping sleeve nut structure

Abstract

The utility model relates to the technical field of the sleeve nut, and disclose a kind of sleeve nut structure of anti-loosening, the anti-loosening ability of current sleeve nut is poor, thread loosening is prone to under vibration environment, leading to sealing failure or pipeline leakage, affect equipment operation safety problem, it includes the sleeve nut body of two ends open hollow structure, the outside of sleeve nut body is hexagonal, and the inner wall of sleeve nut body is provided with internal thread, and the bottom of sleeve nut body is fixedly installed with connecting ring, the middle part of connecting ring is provided with round hole, and the bottom of connecting ring is fixedly installed with mounting ring by welding, the middle part of mounting ring is provided with opening, and the lower part of mounting ring is movably installed with abutting washer by connecting piece, and the upper portion annular of abutting washer is provided with four clamping positioning blocks at equal distance;The sleeve nut has good anti-loosening ability, and thread loosening is not prone to under vibration environment, to prevent sealing failure or pipeline leakage, to ensure equipment operation safety.

Description

Technical Field

[0001] This utility model belongs to the field of ferrule nut technology, specifically a ferrule nut structure that prevents loosening. Background Technology

[0002] A ferrule nut is a fastener used for pipe connections. It is typically used in conjunction with a ferrule or fitting body. Tightening the nut causes the outer front end of the ferrule to mate with the conical surface of the fitting body, while the inner edge evenly grips the outer wall of the pipe, forming a reliable seal and securing the pipe. Its core advantages include easy installation without welding, high pressure resistance, compatibility with various pipe materials such as stainless steel, copper, and aluminum, and the ability to be repeatedly disassembled and reused, reducing costs. This component is widely used in hydraulic systems, pneumatic systems, petrochemicals, and power equipment, especially in the oil refining, chemical, natural gas, food, pharmaceutical, and instrumentation industries, where its efficient sealing and convenient installation make it a key component for pipe connections.

[0003] Existing ferrule nuts have poor anti-loosening capabilities and are prone to thread loosening under vibration, leading to seal failure or pipeline leakage, which affects the safe operation of equipment. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a ferrule nut structure that prevents loosening, which effectively solves the problem that the existing ferrule nuts have poor anti-loosening ability and are prone to loosening of threads under vibration, leading to sealing failure or pipeline leakage and affecting the safe operation of equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ferrule nut structure for preventing loosening, comprising a ferrule nut body with a hollow structure and open ends. The outer surface of the ferrule nut body is hexagonal, and the inner wall of the ferrule nut body is provided with internal threads. A connecting ring is fixedly installed at the bottom of the ferrule nut body. A circular hole is provided in the middle of the connecting ring, and an installation ring is welded and fixedly installed at the bottom of the connecting ring. An opening is provided in the middle of the installation ring. A clamping washer is movably installed at the lower part of the installation ring through a connector. Four clamping positioning blocks are arranged circumferentially and evenly at the upper part of the clamping washer. A transmission component is provided at the lower part of the four clamping positioning blocks. The transmission component can push the four clamping positioning blocks to move inward synchronously to clamp the ferrule-type pipe joint.

[0006] Preferably, the lower part of the clamping washer has a plurality of anti-slip patterns, which are arranged at an angle.

[0007] Preferably, one end of each of the four clamping and positioning blocks is fixedly fitted with a contact pad, which is made of rubber material and has deformability.

[0008] Preferably, the connector includes four insertion holes opened at the bottom of the mounting ring, each of the four insertion holes has an insertion groove at its inner top, each of the four insertion holes has an insertion rod movably inserted inside, the bottom of each of the four insertion rods is fixedly connected to a retaining washer, and the top of each of the four insertion rods extends into the interior of the four insertion grooves and is fixedly installed with a limiting push block.

[0009] Preferably, each of the four insertion slots is provided with a telescopic spring at its upper part, and both ends of the four telescopic springs are respectively fixedly connected to the inner top of the four insertion slots and the bottom of the four limiting push blocks.

[0010] Preferably, the transmission assembly includes four mounting grooves formed on the upper surface of the clamping washer, a limiting sleeve is fixedly installed at the bottom of each of the four clamping positioning blocks, a limiting rod is movably inserted into the middle of each limiting sleeve, and the four limiting rods are fixedly installed inside the four mounting grooves. A return spring is sleeved on the surface of each of the four limiting rods, and the two ends of each of the four return springs are fixedly connected to the inner wall of the mounting groove and the limiting sleeve, respectively. A transmission groove is formed at the lower opening of the mounting ring, the inner wall of the transmission groove is inclined, and the transmission groove is adapted to the outer side of the four clamping positioning blocks.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the operator puts the ferrule nut body onto the ferrule pipe fitting and tightens it by rotating the ferrule nut body on the ferrule pipe fitting with an external wrench; at the same time, the ferrule nut body drives the clamping washer to press against the ferrule pipe fitting through the mounting ring. When the clamping washer presses against the ferrule pipe fitting, it pushes itself to move inward into the mounting ring. When the clamping washer moves, it drives the four insertion rods to slide inside the four insertion holes, thereby improving the stability of the clamping washer when it moves. When the insertion rods move, they push the limiting push block to compress the telescopic spring.

[0012] As the clamping washer moves inward toward the mounting ring, it also drives the four clamping positioning blocks to move inward toward the mounting ring. Through the cooperation of the transmission groove, the four clamping positioning blocks are pushed inward simultaneously. When the four clamping positioning blocks move, they all drive the limiting sleeve to slide on the surface of the limiting slide rod, and at the same time compress the four return springs. This ensures the stability of the movement of the four clamping positioning blocks while giving them the ability to elastically return. When the four clamping positioning blocks move inward synchronously, they drive the four contact pads to clamp the surface of the ferrule-type pipe fitting, thereby preventing the ferrule nut body from slipping off. This gives the ferrule nut good anti-loosening ability, and it is not easy for the threads to loosen in the vibration environment, preventing sealing failure or pipeline leakage, so as to ensure the safe operation of the equipment. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the anti-loosening ferrule nut structure of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the anti-loosening ferrule nut structure of this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the internal structure of the anti-loosening ferrule nut of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0019] In the diagram: 1. Compression nut body; 2. Connecting ring; 3. Mounting ring; 4. Clamping washer; 5. Anti-slip texture; 6. Clamping positioning block; 7. Contact pad; 8. Insertion rod; 9. Insertion groove; 10. Limiting push block; 11. Telescopic spring; 12. Insertion hole; 13. Limiting slide sleeve; 14. Limiting slide rod; 15. Mounting groove; 16. Return spring; 17. Transmission groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1 to 4The present invention includes a ferrule nut body 1 with a hollow structure and open at both ends. The outer surface of the ferrule nut body 1 is hexagonal, which facilitates clamping and rotation with an external wrench. The inner wall of the ferrule nut body 1 has an internal thread, which allows it to be locked with the external thread on a ferrule-type pipe fitting. A connecting ring 2 is fixedly installed at the bottom of the ferrule nut body 1. A circular hole is opened in the middle of the connecting ring 2, allowing the pipe to pass through the hole. An installation ring 3 is welded and fixedly installed at the bottom of the connecting ring 2. The connecting ring 2 serves as a connector, making the ferrule nut body 1 and the installation ring 3 an integral unit. The installation ring 3 has an opening in the middle, allowing the pipe to pass through. The lower part of the installation ring 3... The unit is movably mounted with a clamping washer 4 via a connector, allowing the clamping washer 4 to move under the mounting ring 3. Four clamping positioning blocks 6 are equidistantly arranged in a ring on the upper part of the clamping washer 4. The clamping positioning blocks 6 can clamp the ferrule-type pipe fitting. A transmission component is provided at the lower part of the four clamping positioning blocks 6. The transmission component can push the four clamping positioning blocks 6 to move inward synchronously to clamp the ferrule-type pipe fitting, thereby improving the anti-slip capability of the ferrule nut body 1. Several anti-slip grooves 5 are provided at the lower part of the clamping washer 4. The anti-slip grooves 5 can increase the friction between the clamping washer 4 and the workpiece to prevent the clamping washer 4 from sliding and rotating. The several anti-slip grooves 5 are arranged at an angle.

[0022] In use, the operator puts the ferrule nut body 1 onto the ferrule pipe fitting and tightens it by turning the ferrule nut body 1 on the ferrule pipe fitting with an external wrench; at the same time, the ferrule nut body 1 drives the clamping washer 4 to press against the ferrule pipe fitting through the mounting ring 3. When the clamping washer 4 presses against the ferrule pipe fitting, it will push itself into the mounting ring 3 through the movable setting of the connector. As the clamping washer 4 moves into the mounting ring 3, it will drive the transmission component to operate.

[0023] When the transmission component is running, it will push the four clamping and positioning blocks 6 inward in a synchronized manner. When the four clamping and positioning blocks 6 move inward in a synchronized manner, they will drive the four contact pads 7 to clamp the surface of the ferrule-type pipe fitting, thereby preventing the ferrule nut body 1 from slipping off. This gives the ferrule nut good anti-loosening ability, and it is not easy for the threads to loosen in a vibration environment, preventing sealing failure or pipeline leakage, so as to ensure the safe operation of the equipment.

[0024] The connector includes four insertion holes 12 at the bottom of the mounting ring 3. The four insertion holes 12 are arranged equidistantly in a ring along the lower part of the mounting ring 3. Each of the four insertion holes 12 has an insertion groove 9 at its inner top, and the insertion groove 9 is larger than the diameter of the insertion hole 12. Insertion rods 8 are movably inserted into each of the four insertion holes 12, so that the insertion rods 8 can move within the insertion holes 12. The bottom of each of the four insertion rods 8 is fixedly connected to the abutment washer 4. The top of each of the four insertion rods 8 extends into the interior of the four insertion grooves 9 and is fixedly installed with a limiting push block 10. The diameter of the limiting push block 10 is adapted to the inner diameter of the insertion groove 9.

[0025] The upper part of each insertion slot 9 is provided with a telescopic spring 11. The two ends of the four telescopic springs 11 are respectively fixedly connected to the inner top of the four insertion slots 9 and the bottom of the four limiting push blocks 10. The four telescopic springs 11 can press against the limiting push blocks 10 through their own elasticity to prevent the pressing washers 4 and the four insertion rods 8 from moving on their own.

[0026] When the clamping washer 4 is pressed against the compression fitting, it will push itself to move into the mounting ring 3. When the clamping washer 4 moves, it will drive the four insertion rods 8 to slide inside the four insertion holes 12, thereby improving the stability of the clamping washer 4 when it moves. At the same time, the insertion rods 8 will push the limiting push block 10 to compress the telescopic spring 11.

[0027] The transmission assembly includes four mounting grooves 15 formed on the upper surface of the clamping washer 4. The bottom of each of the four clamping positioning blocks 6 is fixedly mounted with a limiting sleeve 13, and the four limiting sleeves 13 are located inside the four mounting grooves 15. A limiting rod 14 is movably inserted into the middle of each limiting sleeve 13. The four limiting sleeves 13 can move on the surface of the four limiting rods 14 to limit the movement trajectory of the four clamping positioning blocks 6. The four limiting rods 14 are fixedly mounted inside the four mounting grooves 15. A return spring 16 is sleeved on the surface of each of the four limiting rods 14. The two ends of the four return springs 16 are fixedly connected to the inner wall of the mounting groove 15 and the limiting sleeve 13, respectively. When the four return springs 16 release their elastic potential energy, they can push the four clamping positioning blocks 6 to move and reset. A transmission groove 17 is formed at the lower opening of the mounting ring 3. The inner wall of the transmission groove 17 is inclined and the transmission groove 17 is adapted to the outer side of the four clamping positioning blocks 6.

[0028] Each of the four clamping and positioning blocks 6 has a contact pad 7 fixedly installed at one end. The contact pad 7 is made of rubber material and has the ability to deform. The contact pad 7 can ensure that the clamping and positioning block 6 matches the external thread on the ferrule pipe fitting through its deformation ability, thereby improving the clamping and positioning effect.

[0029] As the clamping washer 4 moves inward toward the mounting ring 3, it will drive the four clamping positioning blocks 6 to move inward toward the mounting ring 3. Through the cooperation of the transmission groove 17, the four clamping positioning blocks 6 will be pushed inward. When the four clamping positioning blocks 6 move, they will drive the limiting slide sleeve 13 to slide on the surface of the limiting slide rod 14, and at the same time squeeze the four return springs 16. This will ensure the stability of the movement of the four clamping positioning blocks 6 while giving them the ability to elastically return. When the four clamping positioning blocks 6 move inward in sync, they will drive the four contact pads 7 to clamp the surface of the ferrule-type pipe joint.

Claims

1. A loosening-preventing clamping nut structure comprising a clamping nut body (1) of a hollow structure with open ends, characterized in that: The outer surface of the ferrule nut body (1) is hexagonal, and the inner wall of the ferrule nut body (1) is provided with internal threads. A connecting ring (2) is fixedly installed at the bottom of the ferrule nut body (1). A round hole is provided in the middle of the connecting ring (2). An installation ring (3) is welded and fixedly installed at the bottom of the connecting ring (2). An opening is provided in the middle of the installation ring (3). A clamping washer (4) is movably installed at the lower part of the installation ring (3) through a connector. Four clamping positioning blocks (6) are arranged circumferentially at equal intervals on the upper part of the clamping washer (4). A transmission component is provided at the lower part of the four clamping positioning blocks (6). The transmission component can push the four clamping positioning blocks (6) to move inward synchronously to clamp the ferrule-type pipe joint.

2. The anti-loosening clamping nut structure according to claim 1, characterized in that: The lower part of the clamping washer (4) is provided with several anti-slip patterns (5), and the several anti-slip patterns (5) are arranged at an angle.

3. The anti-loosening clasp nut structure according to claim 1, characterized in that: Each of the four clamping and positioning blocks (6) has a contact pad (7) fixedly installed at one end. The contact pad (7) is made of rubber material and has the ability to deform.

4. The anti-loosening clasp nut structure according to claim 1, characterized in that: The connector includes four insertion holes (12) at the bottom of the mounting ring (3). Each of the four insertion holes (12) has an insertion groove (9) at its inner top. Each of the four insertion holes (12) has a movably inserted insertion rod (8). The bottom of each of the four insertion rods (8) is fixedly connected to the abutting washer (4). The top of each of the four insertion rods (8) extends into the interior of the four insertion grooves (9) and is fixedly installed with a limiting push block (10).

5. The anti-loosening clasp nut structure according to claim 4, characterized in that: The upper part of each of the four insertion slots (9) is provided with a telescopic spring (11), and the two ends of each of the four telescopic springs (11) are respectively fixedly connected to the inner top of the four insertion slots (9) and the bottom of the four limiting push blocks (10).

6. The anti-loosening clasp nut structure according to claim 1, characterized by: The transmission assembly includes four mounting grooves (15) on the upper surface of the clamping washer (4). The bottom of each of the four clamping positioning blocks (6) is fixedly installed with a limiting sleeve (13). A limiting rod (14) is movably inserted into the middle of each limiting sleeve (13). The four limiting rods (14) are fixedly installed inside the four mounting grooves (15). A return spring (16) is sleeved on the surface of each of the four limiting rods (14). The two ends of each of the four return springs (16) are fixedly connected to the inner wall of the mounting groove (15) and the limiting sleeve (13), respectively. A transmission groove (17) is opened at the lower opening of the mounting ring (3). The inner wall of the transmission groove (17) is inclined. The transmission groove (17) is adapted to the outer side of the four clamping positioning blocks (6).

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