Mandrel type casing hanger

By combining the arc-shaped reinforcing ring with the nylon rope and using a ratchet and pawl structure, the problem of wire unwinding in the hanger under vibration is solved, achieving stable connection and sealing of the pipeline, and improving the reliability and sealing performance of the hanger.

CN224229467UActive Publication Date: 2026-05-12SUZHOU WANFANG METAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU WANFANG METAL PROD CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing hangers are prone to wire stripping under high-frequency vibration environments, leading to unstable connections.

Method used

The system employs an arc-shaped reinforcing ring in conjunction with a nylon rope. The pipe body is locked by the threaded connection and the traction force of the nylon rope. Combined with a sealing ring and a one-way locking structure of ratchet and pawl, the connection reliability is enhanced.

Benefits of technology

Maintaining stable connection of the pipeline body under vibration environment, preventing thread stripping, achieving double sealing, and improving the reliability and sealing performance of the overall structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224229467U_ABST
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Abstract

The utility model relates to the technical field of hangers, and discloses a mandrel type casing hanger which comprises a hanger body, two ends of the hanger body are in threaded connection with two pipeline bodies, a fixing assembly is arranged on the outer surface of the hanger body, and the fixing assembly comprises two sets of arc-shaped reinforcing rings in contact with the pipeline bodies. According to the mandrel type casing hanger, the fixing assembly is arranged, traction of the pipeline body can be achieved through cooperation of an arc-shaped reinforcing ring and a nylon rope, threaded connection of the pipeline body and the hanger body is matched, the pipeline body can be locked in the hanger body, the pipeline body can still keep a stable state in the vibration working environment, and the practicability is high. The nylon rope not only can pull the arc-shaped reinforcing ring to enable the pipeline body to be kept in a stable state in the device body, but also can prevent the pipeline from being unwound through traction force on the pipeline body, so that the reliability of the whole structure is improved.
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Description

Technical Field

[0001] This utility model relates to the field of suspension technology, specifically a spindle-type sleeve suspension. Background Technology

[0002] A hanger is a mechanical device used to fix, support, or connect long components such as pipes, sleeves, and cables. It is commonly used in oil, natural gas, building, power, and industrial pipeline systems.

[0003] An existing patent (publication number: CN219993663U) discloses a maintenance-friendly spindle-type sleeve hanger, comprising a hanger one and a hanger two. Both hangers one and two have connecting mechanisms on their surfaces and fixing mechanisms inside. The connecting mechanism includes a fixing frame, the left and right sides of which are fixedly connected to the surface of the hanger two. The fixing mechanism prevents the connecting pipes one and two from rotating inside the hangers one and two, thus securing them. The connecting mechanism also secures the hangers one and two together and allows for quick disassembly. A sealing ring provides a seal between the hangers one and two, and a compression ring further enhances the sealing effect.

[0004] During use, the above-mentioned patent allows for quick disassembly between the first and second hangers. The sealing ring provides a sealing effect between the first and second hangers, and the compression ring can compress the sealing ring for a better sealing effect. However, since the entire assembly is connected by threads, it is susceptible to high-frequency vibrations during operation, which can cause the two sleeve bodies to be affected by vibrations and the threads to come loose from the hangers. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a spindle-type sleeve hanger, which has advantages such as stable connection between the pipe and the hanger, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spindle-type sleeve hanger, comprising a body, with two pipe bodies threadedly connected to both ends of the body, and a fixing component provided on the outer surface of the body;

[0007] The fixing assembly includes two sets of arc-shaped reinforcing rings that contact the pipe body. Each set of arc-shaped reinforcing rings is connected by bolts. The inner wall of each arc-shaped reinforcing ring is made of rubber. The outer surfaces of both pipe bodies are raised. Each arc-shaped reinforcing ring contacts the raised portion of the adjacent pipe body. The outer surface of the assembly has two irregularly shaped cavities. The inner walls of the two irregularly shaped cavities are rotatably connected to rotating columns. The outer surface of each arc-shaped reinforcing ring is fixedly connected to a nylon rope. The other end of each nylon rope is fixedly connected to the adjacent rotating column. Each nylon rope is located in the adjacent irregularly shaped cavity, and the diameter of the nylon rope is two-thirds of the inner diameter of the irregularly shaped cavity.

[0008] By using the above-mentioned solution and setting up a fixing component, the pipe body can be pulled by the combination of the arc-shaped reinforcing ring and the nylon rope. With the threaded connection between the pipe body and the device body, the pipe body can be locked into the device body.

[0009] Furthermore, both pipe bodies are threadedly connected to the inner wall of the vessel body, and two sealing rings are provided inside the vessel body, with the two sealing rings located between the vessel body and the two pipe bodies respectively.

[0010] The above solution uses a high-temperature resistant rubber material to create a double seal at the connection between the pipe body and the vessel, effectively preventing fluid leakage. It also has good buffering performance, reducing the impact of vibration on the connection.

[0011] Furthermore, ratchet wheels are fixedly connected to the ends of the two rotating columns away from the device body, and two pawls are rotatably connected to the outer surface of the device body. Both pawls are in contact with the ratchet wheels that are close to them, and torsion springs are fixedly connected between the two pawls and the device body.

[0012] The above solution enables the ratchet and pawl to work together to achieve a one-way locking function, ensuring that the rotating column can only rotate in one direction to tighten the nylon rope and prevent accidental loosening. The torsion spring provides continuous elasticity to keep the pawl tightly against the ratchet, enhancing the reliability of the lock.

[0013] Furthermore, each of the two rotating columns is fixedly connected to a fixed plate at the end furthest from the body. Each of the two fixed plates has a set of notches on its outer surface. Each of the two fixed plates is rotatably connected to a rotating frame on its outer surface. Each rotating frame has a limit member hinged to its inner wall. Each limit member is located in a notch close to it. Each limit member has a spring fixedly connected to its outer surface. The other end of each spring is fixedly connected to the inner wall of the rotating frame close to it.

[0014] The above scheme allows for the quick locking and releasing of the rotating column through the cooperation of the limiting component and the notch. When the rotating frame rotates, the spring pushes the limiting component into the notch to achieve fixation, and it automatically disengages when rotating in the opposite direction, making it easy to adjust the tension of the nylon rope.

[0015] Furthermore, a swing handle is fixedly connected between the two fixed discs.

[0016] The above solution incorporates a non-slip textured design on the swing handle, making it easier for operators to apply force to rotate the rotating column, thereby quickly tightening or loosening the nylon rope and improving installation and maintenance efficiency.

[0017] Furthermore, each of the arc-shaped reinforcing rings has a set of slots on the side away from the body, and a set of elastic clips are fixedly connected to both ends of the body, with each elastic clip being interference-fitted with the slot closest to it.

[0018] The above solution uses elastic steel to make the elastic clip. It is inserted into the slot by interference fit, which can help fix the position of the arc-shaped reinforcing ring and prevent it from shifting in the vibration environment. It is also easy to disassemble and maintain.

[0019] Furthermore, a fixing frame is snapped onto the outer surface of the device, and the outer surface of the fixing frame has multiple mounting holes arranged in a matrix.

[0020] The above solution allows the fixed frame to be connected to the external structure via bolts, enhancing the overall stability and load-bearing capacity of the suspension.

[0021] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0022] This type of spindle-type sleeve hanger is equipped with a fixing component. It can achieve traction of the pipe body through the cooperation of an arc-shaped reinforcing ring and a nylon rope. The strong tension of the nylon rope, combined with the threaded connection between the pipe body and the device body, can lock the pipe body into the device body, so that it can maintain a stable state even in a vibrating working environment. The nylon rope can not only pull the arc-shaped reinforcing ring to keep the pipe body stable in the device body, but also prevent the pipe from unraveling through the traction force on the pipe body, thereby improving the reliability of the overall structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the device structure of this application;

[0025] Figure 3 For this application Figure 2Enlarged schematic diagram of the structure at point A;

[0026] Figure 4 This is a cross-sectional view of the overall structure of this application;

[0027] Figure 5 This is a sectional view of the rotating frame structure of this application;

[0028] Figure 6 This is a schematic diagram of the arc-shaped reinforcing ring structure of this application;

[0029] Figure 7 This is a schematic diagram of the overall structure of this application. Figure 2 ;

[0030] Figure 8 This is a schematic diagram of the pipeline structure in this application.

[0031] In the picture:

[0032] 1. Vessel body; 2. Pipe body;

[0033] 3. Fixing components;

[0034] 301. Arc-shaped reinforcing ring; 302. Irregularly shaped cavity; 303. Rotating column; 304. Nylon rope;

[0035] 4. Sealing ring; 5. Ratchet; 6. Pad; 7. Torsion spring; 8. Fixed plate; 9. Notch; 10. Rotating frame; 11. Limiting element; 12. Spring; 13. Swing handle; 14. Slot; 15. Elastic clip; 16. Fixed frame; 17. Mounting hole. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0037] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, a spindle-type sleeve hanger includes a body 1, with two pipe bodies 2 threadedly connected to both ends of the body 1, and a fixing component 3 provided on the outer surface of the body 1.

[0038] Please see Figure 1 , Figure 4 and Figure 6The fixing component 3 includes two sets of arc-shaped reinforcing rings 301 that contact the pipe body 2. Each set of arc-shaped reinforcing rings 301 is connected by bolts. The inner wall of each arc-shaped reinforcing ring 301 is made of rubber. The outer surfaces of both pipe bodies 2 are raised. Each arc-shaped reinforcing ring 301 contacts the raised part of the pipe body 2 closest to it. The outer surface of the device body 1 has two irregularly shaped cavities 302. The inner walls of the two irregularly shaped cavities 302 are rotatably connected to rotating columns 303. The outer surface of each arc-shaped reinforcing ring 301 is fixedly connected to a nylon rope 304. The other end of each nylon rope 304 is fixedly connected to the rotating column 303 closest to it. Each nylon rope 304 is located within an adjacent irregular cavity 302, and a fixing component 3 is provided. Through the cooperation of the arc-shaped reinforcing ring 301 and the nylon rope 304, the pipe body 2 can be pulled. With the threaded connection between the pipe body 2 and the device 1, the pipe body 2 can be locked into the device 1, so that it can maintain a stable state even in a vibrating working environment. The nylon rope 304 can not only pull the arc-shaped reinforcing ring 301 to keep the pipe body 2 stable in the device 1, but also prevent the pipe body 2 from unraveling due to vibration through the traction force, thereby improving the reliability of the overall structure.

[0039] Please see Figure 1 , Figure 7 and Figure 8 Both pipe bodies 2 are threaded to the inner wall of the device body 1. The device body 1 has two sealing rings 4 inside, which are located between the device body 1 and the two pipe bodies 2 respectively. The sealing rings 4 are made of high temperature resistant rubber material, which can form a double seal at the connection between the pipe body 2 and the device body 1, effectively preventing fluid leakage. At the same time, it has good buffering performance and reduces the impact of vibration on the connection. The ends of the two rotating columns 303 away from the device body 1 are fixedly connected to ratchet 5. The outer surface of the device body 1 is rotatably connected to two pawls 6, which are in contact with the ratchet 5 that are close to them. The two pawls 6 are fixedly connected to the device body 1. The ratchet 5 and the pawls 6 can realize a one-way locking function, ensuring that the rotating column 303 can only rotate in one direction to tighten the nylon rope 304 and prevent accidental loosening. The torsion spring 7 provides continuous elasticity to keep the pawls 6 in close contact with the ratchet 5, enhancing the locking reliability.

[0040] Please see Figure 1 , Figure 4 and Figure 5Two rotating columns 303 are fixedly connected to a fixed plate 8 at the end away from the body 1. A set of notches 9 are opened on the outer surface of the two fixed plates 8. A rotating frame 10 is rotatably connected to the outer surface of the two fixed plates 8. A limit member 11 is hinged to the inner wall of each rotating frame 10. Each limit member 11 is located in the notch 9 close to it. A spring 12 is fixedly connected to the outer surface of each limit member 11. The other end of each spring 12 is fixedly connected to the inner wall of the rotating frame 10 close to it. The cooperation between the limit member 11 and the notch 9 can realize the quick locking and releasing of the rotating column 303. When the rotating frame 10 rotates, the spring 12 pushes the limit member 11 to lock into the notch 9 to achieve fixation. When rotating in the opposite direction, it automatically disengages, which is convenient for adjusting the tension of the nylon rope 304. A swing handle 13 is fixedly connected between the two fixed plates 8. The swing handle 13 adopts an anti-slip texture design, which makes it easy for the operator to apply force to rotate the rotating column 303, realize the quick tightening or loosening of the nylon rope 304, and improve the installation and maintenance efficiency.

[0041] Please see Figure 1 , Figure 2 and Figure 3 Each arc-shaped reinforcing ring 301 has a set of slots 14 on the side away from the body 1. Both ends of the body 1 are fixedly connected to a set of elastic clips 15. Each elastic clip 15 is interference-fitted with the slot 14 next to it. The elastic clips 15 are made of elastic steel. By interfering with the slots 14, they can help fix the position of the arc-shaped reinforcing ring 301 and prevent it from shifting in a vibration environment. At the same time, they are easy to disassemble and maintain. A fixing frame 16 is attached to the outer surface of the body 1. The outer surface of the fixing frame 16 has multiple mounting holes 17 distributed in a matrix. The fixing frame 16 can be connected to the external structure by bolts to enhance the overall stability and load-bearing capacity of the suspension device.

[0042] It should be noted that the nylon rope 304 is a rope made of polyamide synthetic fiber, known for its high strength, abrasion resistance and chemical resistance. For example, the tensile strength of a 6mm diameter nylon rope is about 800-1200kg. The diameter of the nylon rope 304 is two-thirds of the inner diameter of both ends of the irregular cavity 302, and the inner diameter of both ends of the irregular cavity 302 is set to 6mm.

[0043] The working principle of the above embodiment is as follows: First, when fixing the two pipe bodies 2, the two pipe bodies 2 are threadedly connected to the inner wall of the device 1, and the sealing ring is squeezed. Then, the two arc-shaped reinforcing rings 301 are bolted onto the pipe bodies 2 and contact the protruding part of the pipe bodies 2. Then, multiple elastic clips 15 are inserted into the matching slots 14 to achieve the initial fixing of the pipe bodies 2. After the initial fixing of the pipe bodies 2 is completed, the swing handle 13 on the device 1 is continuously swung to make the limiting member 11 able to be embedded in the notch 9 and push the fixing plate 8 to rotate, so that the fixing plate 8 drives the rotating column 30 3. The nylon rope 304 is wound up within the irregular cavity 302 during rotation. After being wound up, the nylon rope 304 can stretch the arc-shaped reinforcing ring 301, so that the arc-shaped reinforcing member can apply tension to the pipe body 2, so that the pipe body 2 can maintain a stable connection with the device 1, preventing the pipe body 2 from unraveling due to vibration, thereby improving the reliability of the overall structure. After the pipe body 2 is fixed, the ratchet 5 and the pawl 6 can lock the rotating column 303 in one direction to prevent the rotating column 303 from reversing, so that the nylon rope 304 can be kept taut and maintain the traction force on the arc-shaped reinforcing ring 301.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spindle-type sleeve hanger, comprising a body (1), characterized in that: The two ends of the device (1) are threadedly connected to two pipe bodies (2), and a fixing component (3) is provided on the outer surface of the device (1). The fixing component (3) includes two sets of arc-shaped reinforcing rings (301) that contact the pipe body (2). Each set of arc-shaped reinforcing rings (301) is connected by bolts. The inner wall of each arc-shaped reinforcing ring (301) is made of rubber. The outer surfaces of the two pipe bodies (2) are raised. Each arc-shaped reinforcing ring (301) contacts the raised part of the pipe body (2) that is close to it. The outer surface of the device (1) has two irregular cavities (302). The inner walls of the two irregular cavities (302) are rotatably connected to rotating columns (303). The outer surface of each arc-shaped reinforcing ring (301) is fixedly connected to a nylon rope (304). The other end of each nylon rope (304) is fixedly connected to the rotating column (303) that is close to it. Each nylon rope (304) is located in the irregular cavity (302) that is close to it.

2. The spindle-type sleeve hanger according to claim 1, characterized in that: Both of the pipe bodies (2) are threaded to the inner wall of the vessel body (1). The vessel body (1) is provided with two sealing rings (4), which are located between the vessel body (1) and the two pipe bodies (2).

3. A spindle-type sleeve hanger according to claim 1, characterized in that: Both of the rotating columns (303) are fixedly connected to a ratchet (5) at the end away from the body (1). Two pawls (6) are rotatably connected to the outer surface of the body (1). Both pawls (6) are in contact with the ratchet (5) that are close to them. Both pawls (6) are fixedly connected to the body (1) with a torsion spring (7).

4. A spindle-type sleeve hanger according to claim 1, characterized in that: The two rotating columns (303) are fixedly connected to a fixed plate (8) at the end away from the body (1). The outer surface of the two fixed plates (8) is provided with a set of notches (9). The outer surface of the two fixed plates (8) is rotatably connected to a rotating frame (10). The inner wall of each rotating frame (10) is hinged with a limiting member (11). Each limiting member (11) is located in the notch (9) close to it. The outer surface of each limiting member (11) is fixedly connected with a spring (12). The other end of each spring (12) is fixedly connected to the inner wall of the rotating frame (10) close to it.

5. A spindle-type sleeve hanger according to claim 4, characterized in that: A swing handle (13) is fixedly connected between the two fixed disks (8).

6. A spindle-type sleeve hanger according to claim 1, characterized in that: Each of the arc-shaped reinforcing rings (301) has a set of slots (14) on the side away from the body (1). Both ends of the body (1) are fixedly connected to a set of elastic clips (15), and each elastic clip (15) is press-fitted into the slot (14) close to it.

7. A spindle-type sleeve hanger according to claim 1, characterized in that: The outer surface of the device body (1) is fitted with a fixed frame (16), and the outer surface of the fixed frame (16) has a plurality of mounting holes (17) arranged in a matrix.