Full-bore forging ball valve resistant to high pressure and low temperature

Abstract

The utility model discloses a full-bore forge piece ball valve resistant to high pressure and low temperature, and relates to the technical field of mechanical valves. The full-bore forge piece ball valve comprises a pipe shell, the inner wall of the pipe shell is rotationally connected with a ball valve body, the outer wall of the pipe shell is fixedly connected with a locking assembly, and the inner wall of the pipe shell is fixedly connected with a buffering assembly; impurities in water flow can be preliminarily filtered through filter holes in a buffer plate, the impurities are prevented from entering a ball valve body, abrasion of the impurities to a ball valve sealing face, a rotating component and the like is reduced, the probability that the ball valve breaks down due to the impurities is reduced, and when the water pressure is too large, the buffer plate slides under guiding of a limiting block and extrudes a second spring, so that the water pressure is reduced. The elastic deformation of the second spring can buffer the impact force of water flow and reduce the direct action of high-pressure water flow on the ball valve body, so that the normal operation of the ball valve is guaranteed from multiple aspects, and the service life of the ball valve is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical valve technology, specifically to a full-bore forged ball valve resistant to high pressure and low temperature. Background Technology

[0002] Against the backdrop of continuous development in industrial production and infrastructure construction, the importance of fluid transportation and control technology is becoming increasingly prominent. Among many fluid control devices, ball valves are widely used due to their advantages such as easy operation and good sealing performance. However, with the increasing complexity and diversity of industrial environments, the performance requirements for ball valves are also getting higher and higher.

[0003] Traditional full-bore forged ball valves may deform under excessive pressure, affecting their sealing performance and causing leakage. This not only wastes resources but may also threaten production safety. In addition, frequent pressure fluctuations can subject the internal components of the ball valve to significant impact forces, accelerating component wear and reducing the service life of the ball valve. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a full-bore forged ball valve that is resistant to high pressure and low temperature, solving the problem that frequent pressure fluctuations can cause the internal components of the ball valve to be subjected to large impact forces, accelerating component wear.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure, low-temperature resistant full-bore forged ball valve, comprising a pipe shell, a ball valve body rotatably connected to the inner wall of the pipe shell, a locking assembly fixedly connected to the outer wall of the pipe shell, and a buffer assembly fixedly connected to the inner wall of the pipe shell; the locking assembly comprises a handle, a locking rod slidably connected to the inner wall of the handle, a pressing rod fixedly connected to the outer wall of the locking rod, a sliding box slidably connected to the outer wall of the locking rod, a first spring fixedly connected to the inner wall of the sliding box, a first rubber block fixedly connected to the outer wall of the pipe shell, and a second rubber block fixedly connected to the outer wall of the ball valve body.

[0008] Preferably, one end of the first spring is fixedly connected to the bottom of the slide box, and the other end of the first spring is fixedly connected to the bottom of the locking rod. The first spring is fixed to the inner wall of the slide box, and the locking rod is inserted into the groove opened on the inner wall of the throttle by the thrust of the first spring.

[0009] Preferably, the first rubber blocks are arranged in a circular array around the central axis of the ball valve body, the second rubber blocks are in contact with the first rubber blocks, the first rubber blocks are arranged in an array on the outer wall of the pipe shell, and the second rubber blocks are in contact with the first rubber blocks. When the handle drives the ball valve body to rotate, the second rubber blocks fixedly connected to the outer wall rotate accordingly. While rotating, they rub against each other with the first rubber blocks, which can control the ball valve body to control the water flow.

[0010] Preferably, the buffer assembly includes a buffer plate, the outer wall of which has filter holes, a limit block is fixedly connected to the inner wall of the tube shell, a fixing block is fixedly connected to the inner wall of the tube shell, and a second spring is fixedly connected to the outer wall of the fixing block.

[0011] Preferably, the buffer plate is slidably connected to the outer wall of the limiting block through a groove, and the groove is formed on the outer edge of the buffer plate. The buffer plate will slide on the outer wall of the limiting plate due to the pressure of the water flow, and the limiting plate prevents the buffer plate from shifting due to excessive water flow.

[0012] Preferably, the second spring is fixedly connected to the buffer plate, and the outer wall of the buffer plate is in contact with the inner wall of the pipe shell. When the water pressure is too high, the buffer plate will exert a squeezing force on the second spring. The second spring will cause the filter plate to shake due to its own elasticity. The filter holes opened on the outer wall of the buffer plate will perform a simple filtration of the water flowing inside, preventing the ball valve from being damaged by impurities.

[0013] (III) Beneficial Effects

[0014] This invention provides a full-bore forged ball valve resistant to high pressure and low temperature. It has the following advantages:

[0015] (I) This high-pressure and low-temperature resistant full-bore forged ball valve, through the insertion and separation of the locking rod controlled by the pressing rod, combined with the elastic force of the first spring, can conveniently and firmly lock the ball valve body at any desired angle, ensuring that the ball valve will not rotate arbitrarily due to external force or water pressure fluctuations after adjusting the water flow, thus realizing the control of water flow. The resistance generated by the friction between the first rubber block and the second rubber block can be adjusted by the operator according to the ball valve angle, further improving the control of water flow.

[0016] (II) This high-pressure and low-temperature resistant full-bore forged ball valve can initially filter impurities in the water flow through the filter holes on the buffer plate, preventing impurities from entering the ball valve body, reducing wear on the ball valve sealing surface and rotating parts, and lowering the probability of ball valve failure due to impurities. When facing excessive water pressure, the buffer plate slides under the guidance of the limit block and squeezes the second spring. The elastic deformation of the second spring can not only buffer the impact force of the water flow and reduce the direct effect of high-pressure water flow on the ball valve body, but also shake the buffer plate through its own elasticity, shaking off the impurities attached to the filter holes, maintaining the filtration effect, ensuring the normal operation of the ball valve from multiple aspects, and extending the service life of the ball valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall explosion structure of this utility model;

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

[0019] Figure 3 This is a schematic diagram of the locking component of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first rubber block of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the buffer component of this utility model.

[0022] In the diagram: 1. Pipe shell; 2. Ball valve body; 3. Locking assembly; 4. Buffer assembly; 31. Rotary handle; 32. Locking rod; 33. Pressing rod; 34. First spring; 35. Slide box; 36. First rubber block; 37. Second rubber block; 41. Buffer plate; 42. Limiting block; 43. Fixing block; 44. Second spring; 45. Filter hole. 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 protection scope of the present utility model.

[0024] Please see Figure 1-5This utility model provides a technical solution: a high-pressure and low-temperature resistant full-bore forged ball valve, including a pipe shell 1, a ball valve body 2 rotatably connected to the inner wall of the pipe shell 1, a locking assembly 3 fixedly connected to the outer wall of the pipe shell 1, and a buffer assembly 4 fixedly connected to the inner wall of the pipe shell 1; the locking assembly 3 includes a handle 31, a locking rod 32 slidably connected to the inner wall of the handle 31, a pressing rod 33 fixedly connected to the outer wall of the locking rod 32, a sliding box 35 slidably connected to the outer wall of the locking rod 32, a first spring 34 fixedly connected to the inner wall of the sliding box 35, a first rubber block 36 fixedly connected to the outer wall of the pipe shell 1, and a second rubber block 37 fixedly connected to the outer wall of the ball valve body 2; one end of the first spring 34 is connected to the bottom of the sliding box 35. The first spring 34 is fixedly connected to the bottom of the locking rod 32. The first spring 34 is fixed to the inner wall of the slide box 35. The locking rod 32 is inserted into the groove opened in the inner wall of the handle 31 by the thrust of the first spring 34. The first rubber blocks 36 are arranged in a circular array around the central axis of the ball valve body 2. The second rubber block 37 is in contact with the first rubber block 36. The first rubber blocks 36 are arranged in an array on the outer wall of the pipe shell 1. The second rubber block 37 is in contact with the first rubber block 36. When the handle drives the ball valve body 2 to rotate, the second rubber block 37 fixedly connected to the outer wall rotates accordingly. While rotating, it rubs against the first rubber block 36, which can control the ball valve body 2 to control the water flow.

[0025] The buffer assembly 4 includes a buffer plate 41 with filter holes 45 on its outer wall. A limit block 42 is fixedly connected to the inner wall of the tube shell 1, and a fixing block 43 is fixedly connected to the inner wall of the tube shell 1. A second spring 44 is fixedly connected to the outer wall of the fixing block 43. The buffer plate 41 is slidably connected to the outer wall of the limit block 42 through a groove, and the groove is opened on the outer edge of the buffer plate 41. The buffer plate 41 will slide on the outer wall of the limit plate due to the pressure of the water flow. The limit plate prevents the buffer plate 41 from shifting due to excessive water flow. The second spring 44 is fixedly connected to the buffer plate 41, and the outer wall of the buffer plate 41 is in contact with the inner wall of the tube shell 1. When the water pressure is too high, the buffer plate 41 will exert a squeezing force on the second spring 44. The second spring 44 will cause the filter plate to shake due to its own elasticity. The filter holes 45 on the outer wall of the buffer plate 41 will perform a simple filtration of the internal water flow to prevent the ball valve from being damaged by impurities.

[0026] In use, when controlling the opening and closing of the ball valve and the water flow rate, rotating the handle 31 causes the ball valve body 2 to rotate on the inner wall of the pipe shell 1. When the ball valve body 2 rotates to the desired position, the push rod 33 is pushed. The push rod 33 drives the locking rod 32 to overcome the elastic force of the first spring 34 and slide downwards in the inner wall of the handle 31 and the slide box 35. After releasing the push rod 33, the first spring 34 returns to its deformation. The spring's thrust pushes the locking rod 32 upwards, causing it to insert into the groove opened in the inner wall of the handle 31, thereby locking the handle 31 and the ball valve body 2 and ensuring that the ball valve is stably in the current control state. During rotation, the second rubber block 37 on the outer wall of the ball valve body 2 rubs against the first rubber blocks 36 arrayed on the outer wall of the pipe shell 1. The change in friction between the two controls the rotation angle of the ball valve body 2, thereby regulating the water flow rate. In terms of dealing with high-pressure water flow and protecting the ball valve, when water flows into the inside of the pipe shell 1, the water pressure acts on the buffer plate 41. When the flow pressure is normal, the buffer plate 41 remains stable under the limiting action of the limiting block 42. The water flows through the filter holes 45 on the buffer plate 41, achieving preliminary filtration of impurities in the water and preventing impurities from entering the ball valve body 2 and causing damage. When the water pressure is too high, the pressure on the buffer plate 41 increases, causing it to slide on the outer wall of the limiting block 42 and squeeze the second spring 44. After being compressed, the second spring 44 generates a reaction force due to its own elasticity, causing the buffer plate 41 to shake. This shaking not only further enhances the filtration effect and shakes off the impurities attached to the filter holes 45, but also alleviates the direct impact of the water flow on the ball valve body 2. Through the buffering effect of the buffer plate 41 and the second spring 44, the impact force of the high-pressure water flow on the ball valve is reduced, improving the stability and service life of the ball valve under high-pressure environment. At the same time, the low-temperature resistant design of the ball valve ensures that the performance of each component material is stable in low-temperature environment and will not cause problems such as embrittlement or deformation due to low temperature, ensuring the normal operation of the entire ball valve system.

[0027] 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.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure, low-temperature resistant full-bore forged ball valve, comprising a shell (1), wherein a ball valve body (2) is rotatably connected to the inner wall of the shell (1), characterized in that: The outer wall of the tube shell (1) is fixedly connected to a locking component (3), and the inner wall of the tube shell (1) is fixedly connected to a buffer component (4). The locking assembly (3) includes a throttle (31), a locking rod (32) is slidably connected to the inner wall of the throttle (31), a pressing rod (33) is fixedly connected to the outer wall of the locking rod (32), a slide box (35) is slidably connected to the outer wall of the locking rod (32), a first spring (34) is fixedly connected to the inner wall of the slide box (35), a first rubber block (36) is fixedly connected to the outer wall of the tube shell (1), and a second rubber block (37) is fixedly connected to the outer wall of the ball valve body (2).

2. The high-pressure, low-temperature resistant full-bore forged ball valve according to claim 1, characterized in that: One end of the first spring (34) is fixedly connected to the bottom of the slide box (35), and the other end of the first spring (34) is fixedly connected to the bottom of the locking rod (32).

3. A high-pressure, low-temperature resistant full-bore forged ball valve according to claim 1, characterized in that: The first rubber block (36) is arranged in a circular array around the central axis of the ball valve body (2), and the second rubber block (37) is in contact with the first rubber block (36).

4. A high-pressure, low-temperature resistant full-bore forged ball valve according to claim 1, characterized in that: The buffer assembly (4) includes a buffer plate (41), the outer wall of which is provided with filter holes (45), a limit block (42) is fixedly connected to the inner wall of the tube shell (1), a fixing block (43) is fixedly connected to the inner wall of the tube shell (1), and a second spring (44) is fixedly connected to the outer wall of the fixing block (43).

5. A high-pressure, low-temperature resistant full-bore forged ball valve according to claim 4, characterized in that: The buffer plate (41) is slidably connected to the outer wall of the limiting block (42) through a groove, and the groove is opened on the outer wall of the edge of the buffer plate (41).

6. A high-pressure, low-temperature resistant full-bore forged ball valve according to claim 4, characterized in that: The second spring (44) is fixedly connected to the buffer plate (41), and the outer wall of the buffer plate (41) is in contact with the inner wall of the tube shell (1).

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