A ball valve

Abstract

The utility model discloses a ball valve, including valve body, flow passage, ball and drive part. The valve body is equipped with filter assembly, including filter block and fixed part, is equipped with installation cavity on filter block, is equipped with filter screen in installation cavity. The arc rotation groove is equipped on filter block, and the flow passage department of valve body one side is equipped with limit stop, and the limit groove that communicates rotation groove is still equipped on filter block, and the fixed part is inserted in the junction of rotation groove and limit groove to fix filter block. The support frame is equipped on filter screen, and the outer periphery of support frame is equipped with support block, and the arc installation groove is equipped in filter block, and support block realizes support frame installation in the sliding of installation groove. The fixed ball and spring are equipped in installation groove, and spring drive fixed ball and support block on the cooperation locking of clamping groove. The fixed part includes locking frame, and is equipped with limit portion and abutting portion on it, and abutting portion abuts in rotation groove, and limit portion is inserted in the sealing groove on valve body. The utility model filter assembly convenient to dismount, and fixed reliable, is convenient for washing or replacement filter screen.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and more specifically, to a ball valve. Background Technology

[0002] Ball valves, as a common type of fluid control valve, are widely used in various pipeline systems. Ball valves achieve the cutting off and opening of flow channels through the rotation of the ball. Their valve seats are typically made of elastic material and fit tightly against the surface of the ball to ensure sealing performance.

[0003] In practical applications of ball valves, some ball valves incorporate filter screens within the valve body to filter impurities in the medium. However, in existing ball valves with filtration functions, the filter screens are often fixed in place, such as by screws or directly molded inside the valve body. This makes cleaning and replacing the filter screen extremely inconvenient, often requiring the entire valve to be removed from the pipeline before operation. Furthermore, after installation, the fit between the filter assembly and the valve seat lacks an effective adjustment and compensation mechanism. Over time, wear or deformation reduces the fit between the valve seat and the ball, leading to decreased sealing performance and impacting the valve's lifespan and safety. Additionally, the existing filter assembly's fixing structure is relatively simple, making it prone to loosening under fluid impact and vibration.

[0004] Therefore, there is an urgent need for a ball valve structure that allows for easy assembly and disassembly of the filter components, reliable fixation, and ensures a tight fit between the valve seat and the ball. Utility Model Content

[0005] This utility model provides a ball valve whose filter assembly is easy to assemble and disassemble, reliably fixed, and can ensure a tight fit between the valve seat and the ball.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ball valve, comprising a valve body, a flow channel formed within the valve body, a ball disposed within the flow channel, a driving component connected to the ball and a valve seat tightly fitted to the ball on the valve body, the driving component driving the ball to cut off the flow channel, characterized in that: a filter assembly is disposed within the valve body, the filter assembly comprising a filter block and a fixing component, an installation cavity is formed on the filter block, a filter screen is disposed within the installation cavity, a rotating groove is formed on the filter block, a limiting block located on one side of the flow channel is disposed on the valve body, the rotating groove is arc-shaped, and a limiting groove communicating with the rotating groove is also provided on the filter block, the fixing component being inserted into the connection between the rotating groove and the limiting groove for fixing the filter block.

[0007] This utility model has the following advantages: By cooperating with the arc-shaped rotating groove on the filter block and the limiting block on the valve body, during installation, the filter block is pushed into the flow channel and rotated, causing the limiting block to slide into the limiting groove along the arc-shaped rotating groove. Then, the filter block is locked by inserting the fixing piece, thus realizing the quick installation and fixation of the filter block. During disassembly, it is only necessary to pull out the fixing piece and rotate the filter block in the opposite direction to remove it, without disassembling the valve body, which greatly facilitates the cleaning and replacement of the filter screen.

[0008] The present invention is further configured such that: a support frame is provided on the filter screen, a support block is provided on the outer periphery of the support frame, an installation groove is formed in the filter block, the installation groove is arc-shaped, and the support block slides in the installation groove to realize the installation of the support frame.

[0009] This utility model has the following advantages: By cooperating with the support block on the outer periphery of the support frame and the arc-shaped mounting groove inside the filter block, the support frame can slide into the filter block along the mounting groove. During installation, the support frame can be simply screwed in, and during disassembly, it can be screwed out in the opposite direction, realizing quick assembly and disassembly between the filter screen and the filter block, further reducing the difficulty of maintenance.

[0010] The present invention is further configured such that an inclined surface is formed on the support frame.

[0011] The present invention has the following effects: The inclined surface on the support frame plays a guiding role in the installation and disassembly process, so that the support block can slide into or out of the mounting groove more smoothly, avoid jamming, and improve the convenience of disassembly and assembly operations.

[0012] The present invention is further configured such that: a fixed ball and a spring are provided in the mounting groove, the spring is connected to the fixed ball and drives the fixed ball to move towards the support block, and the support block has a recessed groove that cooperates with the fixed ball.

[0013] This utility model has the following effects: When the support block slides into the mounting groove, the spring drives the fixing ball to lock into the slot on the support block, realizing the automatic locking of the support frame, preventing it from being accidentally loosened due to vibration during use, and ensuring the positional stability and reliability of the filter screen in the working state.

[0014] The present invention is further configured such that: the fixing member includes a locking frame, the locking frame has a limiting part and an abutting part, the abutting part abuts against the rotating groove, and the valve body has a sealing groove that cooperates with the limiting part, the limiting part being inserted into the sealing groove.

[0015] The present invention has the following effects: by the abutting part of the locking frame abutting against the rotating groove and the limiting part locking into the sealing groove, multiple cooperation and fixing between the fixing part and the valve body are realized, which not only ensures the axial positioning of the filter block, but also realizes the sealing function through the cooperation of the sealing groove, preventing the medium from leaking from the installation gap.

[0016] The present invention is further configured such that: the end of the filter block away from the fixing member abuts against the valve seat, and an elastic block is movably disposed on the filter block.

[0017] The present invention has the following effects: One end of the filter block abuts against the valve seat, and the movable elastic block applies a continuous elastic thrust to the valve seat, so that the valve seat is always in close contact with the surface of the ball, effectively compensating for the deformation of the valve seat caused by wear or aging after long-term use, and ensuring the sealing performance between the valve seat and the ball.

[0018] The present invention is further configured such that: the end of the filter block away from the fixing member abuts against the valve seat, and a wear-resistant gap is formed between the limiting part and the sealing groove.

[0019] The present invention has the following effects: The wear-resistant gap between the limiting part and the sealing groove ensures the sealing effect while reducing the direct contact and friction between the limiting part and the sealing groove wall, reducing wear during long-term use, and extending the service life of the fixing parts. At the same time, the filter block abuts against the valve seat to ensure the fit between the valve seat and the ball. Attached Figure Description

[0020] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a structural diagram of the filter assembly according to an embodiment of the present utility model; Figure 3 The filter component structure of this utility model embodiment Figure 2 .

[0021] In the diagram: 1. Valve body; 13. Valve seat; 12. Flow channel; 2. Drive component; 3. Filter block; 31. Rotating groove; 32. Limiting block; 33. Limiting groove; 4. Filter screen; 41. Support block; 42. Mounting groove; 43. Slot; 5. Locking frame; 51. Limiting part; 52. Sealing groove; 6. Inclined surface; 7. Elastic block; 71. Wear-resistant gap Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Reference Figures 1 to 3 The embodiments of this utility model will be further described below.

[0025] This embodiment provides a ball valve whose filter assembly is easy to assemble and disassemble, reliably fixed, and can ensure a tight fit between the valve seat and the ball.

[0026] like Figure 1 As shown, the ball valve includes a valve body 1, within which a flow channel 12 for media flow is formed, and a ball (not shown in the figure) is disposed within the flow channel 12. A drive component 2 connecting the ball and a valve seat 13 tightly attached to the ball are provided on the valve body 1. The drive component 2 drives the ball to rotate, thereby achieving the cutting off and opening of the flow channel 12.

[0027] A filter assembly is installed inside the valve body 1 to filter impurities in the medium. The filter assembly includes a filter block 3 and a fixing member. A mounting cavity is formed on the filter block 3, and a filter screen 4 is installed inside the mounting cavity. A rotating groove 31 is formed on the filter block 3, and the rotating groove 31 has an arc-shaped structure. A limiting block 32 is provided on one side of the flow channel 12 of the valve body 1. The filter block 3 also has a limiting groove 33 communicating with the rotating groove 31. During assembly, the filter block 3 is pushed into the flow channel 12 of the valve body 1, aligning the limiting block 32 with the inlet of the rotating groove 31. Then, the filter block 3 is rotated, and the limiting block 32 slides along the arc-shaped rotating groove 31 to its end and enters the limiting groove 33. At this time, the fixing member is inserted at the connection between the rotating groove 31 and the limiting groove 33. The fixing member prevents the limiting block 32 from retracting from the limiting groove 33 back into the rotating groove 31, thereby achieving axial and circumferential fixation of the filter block 3.

[0028] like Figure 2 As shown, a support frame is also provided on the filter screen 4 to support and maintain the shape of the filter screen 4. Support blocks 41 are provided on the outer periphery of the support frame. An installation groove 42 is formed inside the filter block 3. The installation groove 42 has an arc-shaped structure, and the support block 41 can slide within the installation groove 42 to achieve quick installation and disassembly of the support frame and the filter block 3. An inclined surface 6 is formed on the support frame, which plays a guiding role during installation and disassembly, allowing the support block 41 to slide more smoothly into or out of the installation groove 42.

[0029] A fixed ball and a spring are installed inside the mounting groove 42. One end of the spring is connected to the groove wall of the mounting groove 42, and the other end is connected to the fixed ball, driving the fixed ball to move towards the support block 41. The support block 41 has a recessed groove 43 that mates with the fixed ball. When the support block 41 slides into place along the mounting groove 42, the spring drives the fixed ball to engage in the groove 43, achieving automatic locking of the support frame and preventing it from accidentally loosening due to vibration during use.

[0030] The fastener includes a locking frame 5. A limiting part 51 and an abutting part are formed on the locking frame 5. The abutting part abuts against the wall of the rotating groove 31, and the limiting part 51 engages with the sealing groove 52 on the valve body 1, achieving multiple mating fixation between the fastener and the valve body 1. A wear-resistant gap 71 is formed between the limiting part 51 and the sealing groove 52, which reduces direct contact and friction between the limiting part 51 and the wall of the sealing groove 52 while ensuring a sealing effect, thus reducing wear during long-term use.

[0031] like Figure 3 As shown, the end of the filter block 3 away from the fixed part abuts against the valve seat 13. An elastic block 7 is movably disposed on the filter block 3. The elastic block 7 applies a continuous elastic thrust to the valve seat 13, so that the valve seat 13 is always in close contact with the surface of the ball, effectively compensating for the deformation of the valve seat 13 caused by wear or aging after long-term use.

[0032] The assembly process of this embodiment is as follows: First, after assembling the filter screen 4 and the support frame, the filter block 3 is screwed into the arc-shaped mounting groove 42 by the support block 41 until the fixing ball is driven by the spring and inserted into the slot 43, thus completing the assembly of the filter screen 4 and the filter block 3. Then, the assembled filter block 3 is pushed into the flow channel 12 on one side of the valve body 1, so that the limiting block 32 on the valve body 1 is aligned with the inlet of the rotating groove 31 of the filter block 3. The filter block 3 is rotated so that the limiting block 32 slides along the rotating groove 31 to the end and enters the limiting groove 33. Next, the abutting part of the locking frame 5 is inserted into the rotating groove 31, and the limiting part 51 is inserted into the sealing groove 52 of the valve body 1, thus completing the fixation. Finally, the filter block 3 abuts against the valve seat 13 through the elastic block 7, ensuring that the valve seat 13 is tightly attached to the ball.

[0033] When the filter screen 4 needs to be disassembled and cleaned, first pull out the locking frame 5, rotate the filter block 3 in the opposite direction to make the limiting block 32 return from the limiting groove 33 to the rotating groove 31 and slide out, so that the filter block 3 can be taken out from the valve body 1. Then rotate the support frame in the opposite direction to make the support block 41 slide out of the mounting groove 42, so that the filter screen 4 can be taken out for cleaning or replacement.

[0034] The above structure enables quick assembly and disassembly through the cooperation of the rotating groove 31 and the limiting groove 33, reliable locking through the locking frame 5, automatic locking of the support frame through the fixed ball and the slot 43, tight fit between the valve seat 13 and the ball through the elastic block 7, and reduced wear through the wear-resistant gap 71. The overall structure is compact, easy to assemble and disassemble, reliable in fixing, and has good sealing performance, making it particularly suitable for ball valve products that require regular cleaning or filter replacement.

Claims

1. A ball valve, comprising a valve body, wherein a flow channel is formed within the valve body, a ball is disposed within the flow channel, a driving member connected to the ball and a valve seat tightly abutting the ball are disposed on the valve body, the driving member driving the ball to cut off the flow channel, characterized in that: The valve body is provided with a filter assembly, which includes a filter block and a fixing member. The filter block has an installation cavity, and a filter screen is provided in the installation cavity. The filter block has a rotating groove. The valve body is provided with a limiting block located on one side of the flow channel. The rotating groove is arc-shaped, and the filter block is also provided with a limiting groove that communicates with the rotating groove. The fixing member is inserted into the connection between the rotating groove and the limiting groove to fix the filter block.

2. A ball valve according to claim 1, characterized in that: The filter screen is also provided with a support frame, and a support block is provided on the outer periphery of the support frame. An installation groove is formed in the filter block. The installation groove is arc-shaped, and the support block slides in the installation groove to realize the installation of the support frame.

3. A ball valve according to claim 2, characterized in that: An inclined surface is formed on the support frame.

4. A ball valve according to claim 2, characterized in that: The mounting groove is provided with a fixed ball and a spring. The spring is connected to the fixed ball and drives the fixed ball to move towards the support block. The support block has a recessed groove that matches the fixed ball.

5. A ball valve according to claim 1, characterized in that: The fixing component includes a locking frame, on which a limiting part and an abutting part are formed. The abutting part abuts against the rotating groove, and a sealing groove is formed on the valve body that cooperates with the limiting part. The limiting part is inserted into the sealing groove.

6. A ball valve according to claim 1, characterized in that: The end of the filter block away from the fixing member abuts against the valve seat, and an elastic block is movably disposed on the filter block.

7. A ball valve according to claim 5, characterized in that: The end of the filter block away from the fixing member abuts against the valve seat, and a wear-resistant gap is formed between the limiting part and the sealing groove.

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