Ball valve

Abstract

The utility model discloses a ball valve which comprises a valve body, a flow channel for fluid to pass through is arranged in the valve body, a ball body for controlling the flow channel to be cut off is arranged in the flow channel, an actuator which is connected with the ball body and controls the ball body to rotate is arranged on the valve body, an adjusting frame is arranged in the flow channel, and a filtering piece is arranged on the adjusting frame. The filtering piece comprises a filtering net, a first fluid section and a second fluid section which are different in inner diameter are formed in the flow channel, and the adjusting frame is arranged at the joint of the first fluid section and the second fluid section. The filter element has the following advantages and effects that the filter screen is clamped in the flow channel and can be fixed at the joint of the first fluid section and the second fluid section, so that the filter element can be propped against the joint and is still kept stable under fluid impact.

Description

Technical Field

[0001] The utility model relates to the field of valves, and more specifically, to a ball valve. Background Art

[0002] In the field of valves, impurity filtration in valve systems has always been a key issue affecting equipment reliability and service life. In traditional designs, filters are usually installed directly at the valve inlet. Although this structure can effectively protect the internal components of the valve, it has obvious defects in actual operation: when the filter is blocked, the entire valve often needs to be disassembled for cleaning or replacement, which not only increases the difficulty of maintenance and downtime, but also greatly increases the operating cost of the system.

[0003] In addition, although the filter independently arranged in the middle of the pipeline in the prior art is easy to maintain, it is separated from the valve, which makes the stability of the filter in the existing structure low. In view of these problems, it is urgent to develop a new valve filter structure that can ensure the stability of the filter structure while ensuring the filtering effect, and realize the coordinated optimization of valve and channel filtering. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a ball valve which can ensure a more stable filtering structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ball valve, including a valve body, a flow channel for fluid to pass through is arranged in the valve body, a ball for controlling the cut-off of the flow channel is arranged in the flow channel, and an actuator for connecting the ball and controlling its rotation is arranged on the valve body, wherein: an adjusting frame is arranged in the flow channel, a filter is arranged on the adjusting frame, the filter comprises a filter net, a first fluid section and a second fluid section with different inner diameters are formed in the flow channel, and the adjusting frame is arranged at the junction of the first fluid section and the second fluid section.

[0006] The utility model is further configured as follows: a clamping block is slidably provided on the outer periphery of the adjusting frame, the diameter of the first fluid segment is larger than that of the second fluid segment, a clamping recess for fixing the adjusting frame is formed at the connection between the first fluid segment and the second fluid segment, the adjusting frame is fixed when the clamping block is clamped in the clamping recess, and a limiting member is provided on the clamping block.

[0007] The utility model is further configured as follows: the limiting member includes a locking ball and a locking disc spring, a limiting hole is provided on the clamping block, the locking disc spring is arranged in the limiting hole and abuts against the locking ball, and a limiting recess matching the locking ball is provided in the clamping recess.

[0008] The utility model is further configured as follows: the adjustment frame includes a first body and a second body, the first body and the second body form a fixed gap, the filter screen is arranged in the fixed gap, and a positioning hole is arranged on the outer periphery of the filter screen, a positioning rod protrudes from the first body and matches with the positioning rod, and a connecting hole matching with the positioning rod is arranged on the second body.

[0009] The utility model is further configured as follows: a limiting edge is arranged on the outer periphery of the first body, and a maintenance section is formed at one end of the limiting edge, the maintenance section connects the outside and the fixed gap, and a limiting section sealing the maintenance section is protruded from the second body.

[0010] The utility model is further configured as follows: a guiding inclined surface is formed on one side of the second body.

[0011] The utility model is further configured as follows: matching connecting holes are formed on the first body and the second body, and bolts pass through the connecting holes to fix the first body and the second body.

[0012] By adopting the above technical solution, by setting the flow channels to different diameters, the filter screen is set at the connection, and after the flow channels are connected, it can abut against the connection under the flushing of the fluid. Due to the different diameters of the flow channels, the filter screen can be more stable, ensuring its structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the sphere of the utility model;

[0014] Figure 2 A three-dimensional diagram of the utility model of the ball to adjust the frame;

[0015] Figure 3 This is a three-dimensional diagram of the adjustment frame of the utility model;

[0016] Figure 4 This is a three-dimensional diagram of the first body of the utility model;

[0017] Figure 5 This is a three-dimensional diagram of the second body of the utility model;

[0018] Figure 6 It is a cross-sectional view of the card block of the utility model.

[0019] In the figure: 1, sphere; 11, second fluid section; 12, first fluid section; 21, positioning rod; 22, filter screen; 32, second body; 31, first body; 4, block; 41, locking ball; 42, locking disc spring; 33, limiting edge; 34, limiting section; 35, maintenance section; 5, guiding slope. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] Reference Figures 1 to 6 The utility model is further described in detail.

[0023] A ball valve, the structure of which includes a valve body, a flow channel for fluid to pass through is provided in the valve body, and a ball 1 for controlling the flow channel is installed in the flow channel. The ball 1 is connected to an actuator outside the valve body through a valve stem. When the actuator drives the valve stem to rotate, the ball 1 is driven to rotate around the axis to realize the opening or closing of the flow channel. The flow channel is divided into a first fluid section 12 and a second fluid section 11 with different inner diameters along the flow direction of the fluid, wherein the first fluid section 12 close to the fluid inlet has a larger inner diameter, and the second fluid section 11 has a smaller inner diameter, and a stepped transition surface is formed at the junction of the two sections. An adjustment frame is provided in the flow channel, and the adjustment frame is fixedly installed on the transition surface, and the outer peripheral wall of the adjustment frame is tightly matched with the inner wall of the flow channel. A detachable filter is provided on the adjustment frame, and the filter includes a filter screen 22, which is used to intercept solid particles in the fluid and can effectively filter impurities in the fluid. When the fluid containing impurities flows through the ball valve, the filter first filters the fluid to prevent solid particles from entering the second fluid section 11 and causing wear on the sealing surface of the ball 1 or the valve seat. The ball valve of the present invention has the functions of fluid purification, flow stabilization and key component protection on the basis of realizing the conventional opening and closing functions, and at the same time relies on the different sizes of the inner diameter to ensure that the regulating frame is stable under the erosion of the fluid.

[0024] The outer periphery of the adjustment frame is provided with a block 4 which is slidably arranged, and one side of the block 4 forms an inclined surface. The diameter of the first fluid segment 12 is larger than that of the second fluid segment 11. A clamping depression for fixing the adjustment frame is formed at the junction of the first fluid segment 12 and the second fluid segment 11. When the block 4 is clamped in the clamping depression, the adjustment frame is fixed, and a limiting member is arranged on the block 4. When the block 4 extends outward and is embedded in the clamping depression, the adjustment frame is fixed in the flow channel; a limiting member is also arranged on the block 4, which is used to lock the position of the block 4 in the clamping depression to prevent the adjustment frame from being displaced due to fluid impact or vibration.

[0025] The limiting member includes a locking ball 41 and a locking disc spring 42. A limiting hole is provided on the clamping block 4. The locking disc spring 42 is provided in the limiting hole and abuts against the locking ball 41. A limiting recess matching the locking ball 41 is provided in the clamping recess. The locking disc spring 42 is provided at the bottom of the limiting hole, and its elastic force pushes the locking ball 41 to the outside of the limiting hole. A limiting recess is provided on the inner wall of the clamping recess. When the clamping block 4 extends outward and is embedded in the clamping recess, the locking ball 41 is partially embedded in the limiting recess under the action of the locking disc spring 42, forming a secondary lock on the position of the clamping block 4. This design can effectively prevent the clamping block 4 from retracting due to fluid impact or vibration, and ensure the stable fixation of the adjustment frame. When disassembling the adjustment frame, by rotating, the clamping block 4 is retracted due to the inclined surface provided on the clamping block 4, so that the adjustment frame can be disassembled and the fixed state of the adjustment frame can be released.

[0026] The adjustment frame includes a first body 31 and a second body 32, wherein a fixed gap is formed between the first body 31 and the second body 32, wherein the filter screen 22 is arranged in the fixed gap, and a positioning hole is arranged on the periphery of the filter screen 22, and a positioning rod 21 which is matched with the first body 31 protrudes from the first body 31, and a connecting hole which matches with the positioning rod 21 is arranged on the second body 32. The adjustment frame is arranged in a split body, so that the filter screen 22 is easier to replace, and the positioning rod 21 and the connecting hole are matched, so that the filter screen 22 can be directly snap-fitted and fixed, and then the first body 31 and the second body 32 are fixed, so that the filter screen 22 can be locked.

[0027] The first body 31 is provided with a limited edge 33 on its periphery, and a maintenance section 35 is formed at one end of the limited edge 33, the maintenance section 35 is connected to the outside and the fixed gap, and the second body 32 is provided with a limited segment 34 that seals the maintenance segment 35. The limited edge 33 is provided to prevent the filter 22 from detaching. The limited edge 33 is provided around the periphery of the first body 31 and there is a maintenance section 35 for the filter 22 to pass through, so that when replacing the filter 22, it is not necessary to completely separate the first body 31 and the second body 32. The existence of the limited segment 34 enables the filter 22 to be located in the fixed gap without deviation after the first body 31 and the second body 32 are fixed.

[0028] A guiding slope 5 is formed on one side of the second body 32. The guiding slope 5 is located at the connection between the first fluid section 12 and the second fluid section 11 to guide the fluid when it flows from the first fluid section 12 to the second fluid section 11, thereby reducing the impact on the adjustment frame.

[0029] The first body 31 and the second body 32 are formed with matching connection holes, and bolts are passed through the connection holes to fix the first body 31 and the second body 32. By tightening or loosening the bolts to separate the first body 31 and the second body 32, the filter screen 22 can be replaced through the maintenance section 35, and the disassembly and assembly of the adjustment frame and the replacement of the filter screen 22 can be conveniently realized.

[0030] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A ball valve, comprising a valve body, a flow channel for fluid to pass through, a ball for controlling the flow channel to be cut off, and an actuator for connecting the ball and controlling its rotation, wherein: An adjustment frame is arranged in the flow channel, a filter is arranged on the adjustment frame, and the filter comprises a filter net. A first fluid segment and a second fluid segment with different inner diameters are formed in the flow channel, and the adjustment frame is arranged at the connection between the first fluid segment and the second fluid segment.

2. A ball valve according to claim 1, characterized in that: A clamping block is slidably provided on the outer periphery of the adjustment frame, the diameter of the first fluid segment is larger than that of the second fluid segment, and a clamping recess for fixing the adjustment frame is formed at the connection between the first fluid segment and the second fluid segment. When the clamping block is clamped in the clamping recess, the adjustment frame is fixed, and a limiting member is provided on the clamping block.

3. A ball valve according to claim 2, characterized in that: The limiting member includes a locking ball and a locking disc spring. A limiting hole is provided on the clamping block. The locking disc spring is arranged in the limiting hole and abuts against the locking ball. A limiting recess matching the locking ball is arranged in the clamping recess.

4. A ball valve according to claim 1, characterized in that: The adjustment frame includes a first body and a second body, wherein a fixed gap is formed between the first body and the second body, the filter screen is arranged in the fixed gap, and a positioning hole is arranged on the periphery of the filter screen, a positioning rod protrudes from the first body and is matched with the positioning rod, and a connecting hole matching the positioning rod is arranged on the second body.

5. A ball valve according to claim 4, characterized in that: A limiting edge is arranged at the outer periphery of the first body, and a maintenance section is formed at one end of the limiting edge, the maintenance section is connected with the outside and the fixed gap, and a limiting section sealing the maintenance section is protruded from the second body.

6. A ball valve according to claim 4, characterized in that: A guiding inclined surface is formed on one side of the second body.

7. A ball valve according to claim 4, characterized in that: The first body and the second body are formed with matching connecting holes, and bolts pass through the connecting holes to fix the first body and the second body.

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