High-pressure movable elbow with high buffering function

Abstract

The utility model belongs to the technical field of pipeline elbows, and particularly relates to a high-pressure movable elbow with a high buffering function, which comprises an elbow pipe, an end cover, a movable plug, a sliding rod and a buffering spring, a buffering pipe is integrally arranged on the outer side of the bending part of the elbow pipe, the movable plug is arranged in the buffering pipe in a sliding manner, and the sliding rod on the movable plug is inserted on the end cover in a sliding manner. The end cover is in threaded connection with the buffer tube, and a buffer spring is arranged on the sliding rod between the end cover and the movable plug. According to the utility model, the buffer pipe is arranged at the bending position of the bent pipe, and the buffer pipe and the movable plug in the buffer pipe are used for effectively buffering pipeline impact caused by a water hammer phenomenon, so that the influence of impact stress on the bent pipe is reduced, the service life of the bent pipe is prolonged, and the stable use of the bent pipe is ensured; and meanwhile, by adjusting the compression amount of the buffer spring, the buffer sensitivity of the impact stress in the elbow can be debugged, so that different use requirements can be met, the application range is expanded, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe elbow technology, specifically a high-pressure movable elbow with high buffering function. Background Technology

[0002] High-pressure swivel elbows are mainly used in cementing manifolds and annular pipelines. They can be used in high-pressure discharge pipelines, input pipelines, temporary fluid flow pipelines, well test pipelines, and other acidic operating environments where fluids are transported under high-pressure conditions. High-pressure swivel elbows on the market use the sliding between the groove and the steel ball to make the elbow rotate. However, during use, high-pressure swivel elbows will generate relatively frequent vibrations, which can cause the high-pressure swivel elbows to break and loosen.

[0003] A search revealed a high-pressure movable elbow with high buffering capacity in Chinese patent application number 202021888861.5. The elbow includes an angle elbow with a first mounting plate fixedly connected to its bottom surface. The outer surface of the angle elbow has symmetrical sliding grooves. A buffer sleeve is fixedly connected to the left side of a fixed block, and several compression springs are fixedly connected to the inner wall of the buffer sleeve. A straight head is sleeved at the end of the angle elbow away from the first mounting plate, and a clamp is fitted onto the outer surface of the straight head. This high-pressure movable elbow with high buffering capacity prevents loosening of the high-pressure movable elbow. Through the cooperation of the clamp, the second mounting plate, and the straight head, it stabilizes and seals the connection of the pipeline, preventing detachment during high-pressure operation. The threaded hole, the first bolt, and the anti-detachment plate work together to fix the angle elbow and the straight head. The buffer sleeve and the compression springs work together to buffer the high-pressure movable elbow.

[0004] In the above technical solution, a buffer component is installed on the outside of the bend to buffer the impact. However, as is well known, most bend impacts are caused by water hammer inside the pipe. The buffer component installed on the outside of the bend cannot effectively buffer the water hammer phenomenon and is inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a high-pressure movable elbow with high buffering function, which solves the problem that buffer components installed on the outside of the bend cannot effectively buffer water hammer and are inconvenient to use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A high-pressure movable elbow with high buffering function includes a bend, an end cap, a movable plug, a slide rod, and a buffer spring. Both ends of the bend are integrally provided with connecting end plates. A buffer tube is integrally provided on the outer side of the bend of the bend. A movable plug is slidably installed inside the buffer tube. The slide rod on the movable plug is slidably inserted into the end cap, and the end cap is threadedly connected to the buffer tube. A buffer spring is installed on the slide rod between the end cap and the movable plug.

[0010] Furthermore, the bend and the buffer tube are interconnected, a limit ring is provided at the connection between the bend and the buffer tube, and the buffer tube is provided with a threaded connection part, which is threadedly connected to the threaded connection cylinder integrally provided on the end cover.

[0011] The end cap is integrally provided with a sleeve, which is slidably connected to the slide rod, and a hexagonal protrusion is integrally provided at one end of the sleeve located outside the buffer tube.

[0012] The connecting end plates at both ends of the bend are provided with sealing grooves.

[0013] Furthermore, the movable plug is fixedly connected to the connecting seat, and the connecting seat is integrally provided with a plug-in seat. One end of the slide rod is fixedly plugged into the plug-in seat, and the edge of the movable plug facing away from the connecting seat initially abuts against the limiting ring.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a high-pressure movable elbow with high buffering function, which has the following beneficial effects:

[0016] This invention involves installing a buffer tube at the bend of a pipe. The buffer tube and its internal movable plug effectively buffer the impact of water hammer on the pipeline, reducing the impact stress on the bend, extending its service life, and ensuring stable use. Furthermore, the sensitivity of the internal impact stress buffer can be adjusted by regulating the compression of the buffer spring, thus adapting to different usage requirements, expanding its applicability, and improving ease of use. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the bent pipe in this utility model;

[0020] Figure 4 This is a cross-sectional view of the end cap of this utility model;

[0021] Figure 5 This is a cross-sectional view of the movable plug in this utility model.

[0022] In the diagram: 1. Bend; 101. Buffer tube; 102. Connecting end plate; 103. Sealing groove; 104. Limiting ring; 105. Threaded connection part; 2. End cap; 201. Sleeve; 202. Threaded connecting sleeve; 3. Movable plug; 301. Connecting seat; 302. Insertion seat; 4. Slide rod; 5. Buffer spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in one embodiment of this utility model, a high-pressure movable elbow with high buffering function is proposed, including a bend 1, an end cap 2, a movable plug 3, a slide rod 4, and a buffer spring 5. Both ends of the bend 1 are integrally provided with connecting end plates 102, facilitating stable installation of the bend 1 onto the pipeline, thus ensuring stable installation of the bend 1. A buffer tube 101 is integrally provided on the outer side of the bend portion of the bend 1. A movable plug 3 is slidably disposed inside the buffer tube 101. A sealing ring is disposed at the sliding contact point between the sliding plug 3 and the inner wall of the buffer tube 101, ensuring a stable and effective sealing connection between the two, preventing... During use, the medium flowing inside the pipeline seeps out from the buffer tube 101 to ensure stable operation. The slide rod 4 on the movable plug 3 is slidably inserted into the end cap 2, and the end cap 2 is threadedly connected to the buffer tube 101. A buffer spring 5 is installed on the slide rod 4 between the end cap 2 and the movable plug 3 to ensure that the movable plug 3 can slide smoothly in the buffer tube 101 during use, effectively buffering the impact stress. At the same time, the buffer spring 5 is compressed during the sliding process, thereby effectively buffering the impact stress and ensuring that the movable plug 3 can be smoothly driven to reset afterward, ensuring stable operation.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, the bend 1 and the buffer tube 101 are interconnected, so that when water hammer occurs in the bend 1, the medium flowing in the bend 1 can effectively drive the movable plug 3, so as to smoothly buffer the impact stress and ensure stable use. A limit ring 104 is provided at the connection between the bend 1 and the buffer tube 101 to limit and block the movable plug 3 and prevent the movable plug 3 from sliding into the bend 1. The buffer tube 101 is provided with a threaded connection part 105, which is threadedly connected to the threaded connecting sleeve 202 integrally provided on the end cover 2, so as to stably install the end cover 2 onto the buffer tube 101, limit the components installed in the buffer tube 101, prevent them from sliding off, and ensure stable use.

[0027] A sleeve 201 is integrally provided on the end cap 2. The sleeve 201 is slidably connected to the slide rod 4, which improves the stability of the slide rod 4 sliding on the end cap 2 and ensures stable use. The sleeve 201 is integrally provided with a hexagonal protrusion at one end outside the buffer tube 101. When adjusting the end cap 2, the auxiliary tool can be directly placed on the hexagonal protrusion. Then, the end cap 2 is driven to rotate on the buffer tube 101 by the auxiliary tool. As the end cap 2 is screwed in or out of the threaded connection part 105 on the buffer tube 101, the compression of the buffer spring 5 inside the buffer tube 101 is adjusted. This completes the adjustment of the sensitivity of the movable plug 3 to the impact stress buffering of the inside of the bend tube 1, so as to adapt to different usage needs, expand the application range, and improve the convenience of use. The length of the threaded connection sleeve 202 on the end cap 2 is less than the length of the threaded connection part 105 on the buffer tube 101, which ensures that the position of the end cap 2 can be adjusted smoothly.

[0028] The connecting end plates 102, which are integrally set at both ends of the bend 1, are provided with sealing grooves 103, which facilitates the stable installation of the sealing ring during the installation of the bend 1, thereby effectively sealing the connection part and ensuring stable use.

[0029] like Figure 1 and Figure 5 As shown, in some embodiments, the movable plug 3 is fixedly connected to the connecting seat 301. The connecting seat 301 is integrally provided with a plug seat 302. One end of the slide rod 4 is fixedly plugged into the plug seat 302, which facilitates the stable installation of the movable plug 3 and its stable connection with the slide rod 4. By utilizing the cooperation between the slide rod 4 and the sleeve 201, the stability of the movable plug 3 sliding in the buffer tube 101 is improved, ensuring effective buffering of impact forces, reducing the impact on the bend tube 1, and ensuring stable use. In the initial state, the edge of the movable plug 3 facing away from the connecting seat 301 abuts against the limiting ring 104, which acts as a stable limiting component to restrict the sliding path of the movable plug 3, preventing the movable plug 3 from sliding into the bend tube 1, so that the movable plug 3 can only slide smoothly in the buffer tube 101, thereby ensuring stable use.

[0030] During installation, bolts are used to fix the connecting end plates 102 at both ends of the bend 1 to the designated pipe, and sealing gaskets are placed at the connection points to achieve a sealed connection.

[0031] During subsequent use, when the valve controlling the on / off state of the pipeline suddenly closes, water hammer will occur in the pipeline, generating significant impact stress at the bend of bend 1. Under this impact stress, the movable plug 3 will slide within the buffer tube 101, buffering the impact stress on bend 1. Simultaneously, the movable plug 3 will compress the buffer spring 5 during its sliding process. After the impact stress disappears, the buffer spring 5 drives the movable plug 3 to reset, smoothly completing one buffer cycle. This effectively prevents impact stress from damaging bend 1, ensuring its normal use and extending its service life.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-pressure movable elbow with high buffering function, comprising a bend (1), an end cap (2), a movable plug (3), a slide rod (4), and a buffer spring (5), wherein both ends of the bend (1) are integrally provided with connecting end plates (102), characterized in that: A buffer tube (101) is integrally provided on the outer side of the bent part of the tube (1). A movable plug (3) is slidably arranged inside the buffer tube (101). A slide rod (4) on the movable plug (3) is slidably inserted into the end cap (2), and the end cap (2) is threadedly connected to the buffer tube (101). A buffer spring (5) is installed on the slide rod (4) between the end cap (2) and the movable plug (3).

2. The high-pressure movable elbow with high buffering function according to claim 1, characterized in that: The bend (1) and the buffer tube (101) are interconnected. A limit ring (104) is provided at the connection between the bend (1) and the buffer tube (101). The buffer tube (101) is provided with a threaded connection part (105). The threaded connection part (105) is threadedly connected to the threaded connecting sleeve (202) integrally provided on the end cover (2).

3. A high-pressure movable elbow with high buffering function according to claim 2, characterized in that: The end cap (2) is integrally provided with a sleeve (201), which is slidably connected to the slide rod (4), and a hexagonal protrusion is integrally provided at one end of the sleeve (201) located outside the buffer tube (101).

4. A high-pressure movable elbow with high buffering function according to claim 2, characterized in that: The connecting end plates (102) integrally set at both ends of the bend (1) are provided with sealing grooves (103).

5. A high-pressure movable elbow with high buffering function according to claim 1, characterized in that: The movable plug (3) is fixedly connected to the connecting seat (301). The connecting seat (301) is integrally provided with a plug seat (302). One end of the slide rod (4) is fixedly plugged into the plug seat (302), and the movable plug (3) initially abuts against the limiting ring (104) at the edge of the side facing away from the connecting seat (301).

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