Corrosion-resistant ceramic ball valve

Abstract

The invention discloses a corrosion-resistant ceramic ball valve, and relates to the technical field of ceramic ball valves, the corrosion-resistant ceramic ball valve comprises a left valve body, a right valve body, a valve cover and a valve ball, the left valve body and the right valve body are installed in a butt joint mode through a plurality of bolts to form a ball body cavity used for installing the valve ball, and a plurality of sealing grooves are formed in the connecting positions of the left valve body, the right valve body and the valve cover. Sealing gaskets are arranged in the sealing grooves, a filtering mechanism used for filtering water is arranged in the left valve body, and an opening adjusting mechanism matched with the valve ball is arranged on the outer side of the right valve body. According to the ball valve, the rotatable filter plate component is installed at the position, close to the water inlet end, in the ball valve, the filter plate can be rotated to the opening, the filter plate can be conveniently cleaned and can be prevented from being blocked, the opening adjusting mechanism is arranged, the limiting operation on the rotating ring can be directly relieved when the rotating ring is held by a hand, operation steps are reduced, compared with a traditional ball valve, occupied space can be greatly reduced, and cost is reduced. Therefore, the trend of the pipeline is optimized in a limited pipeline installation space.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic ball valves, in particular to a corrosion-resistant ceramic ball valve. Background Art

[0002] Ball valves are mainly used to cut off, distribute and change the flow direction of the medium. They have the characteristics of small opening and closing torque and corrosion resistance, and are widely used in various working conditions. When the existing ordinary ball valves are used in systems with more impurities, it is easy for foreign matter to scratch the sealing surface and foreign matter to remain between the ball and the contact surface of the valve seat, causing the sealing surface to become stuck and damaged, and eventually causing leakage and structural damage, affecting practicality.

[0003] For example, a ceramic hard-sealed high-temperature ball valve recorded in the patent with authorization publication number CN115405717A has a handle that takes up a large space. In a complex pipeline layout environment, it will cause inconvenience to the installation and maintenance of other equipment, and there is a lack of a handle limit structure. External factors (such as accidental contact by personnel, vibration and collision of equipment, etc.) can easily cause the handle to rotate and then open the valve, which has poor safety and practicality. In addition, the ball valve lacks a filtering structure inside and cannot block the debris in the transport medium. Some impurities will enter the sealing surface of the valve seat and the valve ball. Long-term use will cause the sealing effect of the ball valve to deteriorate.

[0004] Based on this, a corrosion-resistant ceramic ball valve is now provided to eliminate the drawbacks of the prior art solutions. Summary of the invention

[0005] The object of the present invention is to provide a corrosion-resistant ceramic ball valve to solve the problems in the background art that the handle occupies a large space and lacks a handle limiting structure and a filtering structure.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A corrosion-resistant ceramic ball valve, comprising a left valve body, a right valve body, a valve cover and a valve ball, wherein the left valve body and the right valve body are butt-jointed and installed by a plurality of bolts to form a ball cavity for installing the valve ball, a plurality of sealing grooves are provided at the connection between the left valve body, the right valve body and the valve cover, and sealing gaskets are provided inside the sealing grooves, a side of the left valve body away from the valve ball is set as a water inlet end, and a side of the right valve body away from the valve ball is set as a water outlet end;

[0008] The left valve body is provided with a filtering mechanism for filtering water inside, and the right valve body is provided with an opening adjustment mechanism matched with the valve ball outside to control the opening and closing of the valve ball;

[0009] The filtering mechanism includes a connecting block fixedly mounted on the left valve body, a slide groove is arranged inside the connecting block, a filter plate is slidably connected to the inner wall of the slide groove, the bottom end of the filter plate is rotatably connected to the inner wall of the left valve body, an opening is arranged at the bottom of the connecting block, a sealing cover is arranged at the opening, a pull rope is fixedly arranged on the surface of the filter plate, a limiting rod is fixedly connected to the inner wall of the connecting block close to the opening, and the other end of the pull rope is wound around the limiting rod.

[0010] Preferably, the opening adjustment mechanism includes a rotating shaft, one end of the rotating shaft passes through the valve cover and is connected to the valve ball, the other end of the rotating shaft is fixedly provided with a first gear, one side of the first gear is meshed with a second gear, the gear shaft of the second gear is rotatably connected to the right valve body, a swivel is provided on the outer rotating sleeve of the right valve body, a face gear is fixedly provided on the side of the swivel close to the second gear, the face gear is meshed with the second gear, and locking components for limiting gear transmission are provided inside and outside the swivel.

[0011] Preferably, the locking assembly includes a placement groove provided inside the rotating ring, a rotating rod is fixedly provided inside the placement groove, a lever is rotatably connected to the outer side of the rotating rod, a block is fixedly provided on the side of the lever away from the face gear, a slider is provided on the side of the lever close to the face gear, the slider is slidably connected to the rotating ring, the top of the slider extends to the outside of the rotating ring and is fixedly connected to the handle, the slider is connected to the lever through a limit piece, and a spring is fixedly provided between the lever and the bottom wall of the placement groove.

[0012] Preferably, the limiting member comprises a guide rod fixedly arranged at the bottom of the sliding block, a through hole is opened on one side of the lever, and the guide rod is slidably arranged inside the through hole.

[0013] Preferably, an annular limiting block is fixedly provided inside the left valve body, and the filter plate is in contact with the annular limiting block and is not fixed.

[0014] Preferably, a rubber pad is fixedly provided on the top of the filter plate.

[0015] Preferably, the filter plate rotates toward the water inlet end, and the rotation angle range of the filter plate is 0 to 90°.

[0016] Preferably, a plurality of slots are provided on the outer wall of the right valve body, and the size of the slots is adapted to the trajectory displacement of the clamping block.

[0017] Preferably, the inner and outer sides of the left valve body, the right valve body, the valve cover and the valve ball are coated with a wear-resistant and corrosion-resistant coating.

[0018] Preferably, the left valve body, the right valve body, the valve cover and the valve ball are all made of ceramic materials with high hardness, corrosion resistance and good thermal conductivity.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention is provided with a filtering mechanism. A rotatable filter plate component is installed inside the ball valve near the water inlet end. The filter plate blocks impurities inside the left valve body, reduces the degree of wear of the impurities on the valve ball sealing surface, and keeps the sealing performance of the ball valve stable. With the cooperation of the pull rope, the opening and other components, the filter plate can be rotated to the opening, which is convenient for cleaning the filter plate, can prevent the filter plate from being blocked, always maintain a good filtering effect, and solve the problem that the filter plate is difficult to clean when blocked;

[0021] 2. The present invention is provided with an opening adjustment mechanism, which can limit the position of the swivel with the cooperation of the locking assembly, effectively preventing the valve from opening accidentally due to external touch. The restriction on the swivel can be directly released when the swivel is held, reducing the operating steps. Compared with the traditional ball valve, it can greatly reduce the space occupied, optimize the pipeline direction within the limited pipeline installation space, and has a good application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0023] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0024] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0025] Figure 4 For the present invention Figure 3 Front view of .

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0027] Figure 6 For the present invention Figure 4 Enlarged view of point B in the middle.

[0028] Figure 7 It is a schematic structural diagram of the locking assembly of the present invention.

[0029] Notes on the accompanying drawings: left valve body 101, right valve body 102, valve cover 103, valve ball 104, ball cavity 105, sealing groove 106, filtering mechanism 200, connecting block 201, slide groove 202, filter plate 203, opening 204, sealing cover 205, pull rope 206, limit rod 207, annular limit block 208, rubber pad 209, opening adjustment mechanism 300, rotating shaft 301, first gear 302, second gear 303, swivel 304, face gear 305, placement groove 306, lever 307, block 308, slider 309, handle 310, spring 311, guide rod 312, through hole 313, slot 314. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] In this embodiment, if Figure 1-Figure 7 As shown, a corrosion-resistant ceramic ball valve comprises a left valve body 101, a right valve body 102, a valve cover 103 and a valve ball 104. The left valve body 101 and the right valve body 102 are butt-jointed and installed by a plurality of bolts to form a ball cavity 105 for installing the valve ball 104, which is convenient for disassembly and installation and convenient for maintenance. A plurality of sealing grooves 106 are provided at the connection between the left valve body 101, the right valve body 102 and the valve cover 103. Sealing gaskets are provided inside the sealing grooves 106, so that the corresponding structures can fit closely and increase the sealing effect. The side of the left valve body 101 away from the valve ball 104 is set as the water inlet end, and the side of the right valve body 102 away from the valve ball 104 is set as the water outlet end, so as to limit the flow direction of the medium.

[0032] The left valve body 101 is provided with a filter mechanism 200 for filtering water, which effectively blocks impurities and prevents them from entering the sealing surface of the valve cover 103 and the valve ball 104, ensuring that they do not affect the sealing effect, extend the service life of the ball valve, and affect the smoothness of water flow when the ball valve is opened. The right valve body 102 is provided with an opening adjustment mechanism 300 matched with the valve ball 104 on the outside, which is used to control the opening and closing of the valve ball 104. Compared with the traditional ball valve, the size of the handle and other components in the space is greatly reduced, the space utilization rate is improved, and a locking component is added. The handle 310 and the valve ball 104 are locked in a specific position by mechanical locking, which ensures safe and stable operation during use.

[0033] The filter mechanism 200 includes a connecting block 201 fixedly mounted on the left valve body 101, a slide groove 202 is arranged inside the connecting block 201, a filter plate 203 is slidably connected to the inner wall of the slide groove 202, the filter plate 203 is made of corrosion-resistant and high-temperature-resistant material, a sealing gasket can be laid on the outer wall of the filter plate 203, which effectively increases the efficiency of intercepting impurities, the bottom end of the filter plate 203 is rotatably connected to the inner wall of the left valve body 101, an opening 204 is arranged at the bottom of the connecting block 201, and a sealing cover 205 is arranged at the opening 204 to avoid leakage of the medium and facilitate the impurities to be intercepted. For cleaning, a pull rope 206 is fixedly provided on the surface of the filter plate 203. The pull rope 206 is made of a material with good wear resistance, which is convenient for pulling the filter plate 203 to the opening 204. A limiting rod 207 is fixedly connected to the inner wall of the connecting block 201 on the side close to the opening 204. The other end of the pull rope 206 is wound around the limiting rod 207. According to the characteristics of the conveying medium and the size of the impurity particles, a filter plate 203 with a suitable filtration accuracy is selected to effectively intercept various debris in the medium and prevent it from entering the sealing surface of the valve cover 103 and the valve ball 104, thereby significantly reducing the degree of wear of the ball valve.

[0034] Among them Figure 2-Figure 7 As shown, the opening adjustment mechanism 300 includes a rotating shaft 301, one end of which passes through the valve cover 103 and is connected to the valve ball 104, and the other end of the rotating shaft 301 is fixedly provided with a first gear 302, and one side of the first gear 302 is meshed with a second gear 303. The first gear 302, the second gear 303, and the face gear 305 are all existing structures. The gear sizes between the above components are adapted to avoid interference. The gear shaft of the second gear 303 is rotatably connected to the right valve body 102, and a swivel 304 is rotatably sleeved on the outer side of the right valve body 102. The swivel 304 can be connected to the right valve body 102 through a bearing or a sliding sealing ring. To avoid jamming due to friction, the user can rotate the rotating ring 304 to drive the face gear 305, the second gear 303 and the first gear 302 to rotate, thereby adjusting the opening state of the valve ball 104. The face gear 305 is fixedly provided on the side of the rotating ring 304 close to the second gear 303. The surfaces of the rotating ring 304 and the right valve body 102 can be provided with scale bars. Whether to rotate the valve ball 104 to the corresponding position is determined according to the position of the scale bars. The face gear 305 is meshed with the second gear 303. The inside and outside of the rotating ring 304 are provided with locking components for limiting gear transmission, which effectively avoids the accidental opening of the ball valve due to external touch.

[0035] Among them Figure 2-Figure 7As shown, the locking assembly includes a placement groove 306 opened inside the rotating ring 304, a rotating rod is fixedly arranged inside the placement groove 306, a lever 307 is rotatably connected to the outer side of the rotating rod, a block 308 is fixedly arranged on the side of the lever 307 away from the face gear 305, a slider 309 is arranged on the side of the lever 307 close to the face gear 305, the slider 309 is slidably connected to the rotating ring 304, the top of the slider 309 extends to the outside of the rotating ring 304 and is fixedly connected to the handle 310, the slider 309 is connected to the lever 307 through a limiter, a spring 311 is fixedly arranged between the lever 307 and the bottom wall of the placement groove 306, the spring 311 enables the lever 307 to have the ability to automatically return to its original position, so that when the locking assembly is in a locked state, the spring 311 can cooperate with the lever 307, so that the block 308 can be smoothly inserted into the inside of the slot 314, thereby achieving a self-locking effect.

[0036] Among them Figure 4-Figure 7 As shown, the limiter includes a guide rod 312 fixedly arranged at the bottom of the slider 309, a through hole 313 is opened on one side of the lever 307, and the guide rod 312 is slidably arranged inside the through hole 313. The user holds the rotating ring 304 and presses the handle 310 at the same time, thereby driving the slider 309 to move toward one side of the rotating ring 304. Since the guide rod 312 is restricted inside the through hole 313, the side of the lever 307 close to the block 308 can be lifted upward, so that the block 308 is disengaged from the slot 314, which is convenient for the user to rotate the rotating ring 304, thereby driving the gear meshing transmission, realizing the rotation operation of the valve ball 104, and facilitating the adjustment of the opening and closing of the ball valve.

[0037] Among them Figure 3-Figure 5 As shown, an annular limit block 208 is fixedly provided inside the left valve body 101, and the filter plate 203 is in contact with the annular limit block 208 and is not fixed, thereby limiting the rotation range of the filter plate 203. Since the water inlet end is arranged on one side of the left valve body 101, the medium can impact the filter plate 203, thereby limiting the position of the filter plate 203. The filter plate 203 not only filters impurities, but also has a buffering effect on the medium, thereby avoiding damage to the structure due to large impact force.

[0038] Among them Figure 4 and Figure 5 As shown, a rubber pad 209 is fixedly provided on the top of the filter plate 203. The rubber pad 209 is made of elastic material. When the user moves the filter plate 203 to the position of the annular limit block 208, the rubber pad 209 will conflict with the inner wall of the left valve body 101, thereby fixing the position of the filter plate 203.

[0039] Among them Figure 4 and Figure 5As shown, the filter plate 203 rotates toward the water inlet end, and the rotation angle range of the filter plate 203 is 0 to 90 degrees, which is convenient for rotating the filter plate 203 to the opening 204 position, and is convenient for subsequent cleaning operations of the filter plate 203.

[0040] Among them Figure 3 and Figure 4 As shown, a plurality of slots 314 are provided on the outer wall of the right valve body 102. The size of the slots 314 matches the trajectory displacement of the block 308, which is convenient for limiting the position of the block 308 and further limiting the position of the gear to avoid the gear from rotating due to external force.

[0041] Among them Figure 1-Figure 4 As shown, the inner and outer sides of the left valve body 101, the right valve body 102, the valve cover 103 and the valve ball 104 are coated with wear-resistant and corrosion-resistant coatings to prevent impurities or particles from adhering to the surface of the structure and causing wear or corrosion.

[0042] Among them Figure 1-Figure 4 As shown, the left valve body 101, the right valve body 102, the valve cover 103 and the valve ball 104 are all made of ceramic materials with high hardness, corrosion resistance and good thermal conductivity, such as zirconium oxide or silicon carbide, which play an anti-corrosion role and extend the service life of the ball valve.

[0043] During use, when a medium such as water flows into the left valve body 101, the water flows into the filter plate 203, causing the filter plate 203 to tend to move to the right. With the cooperation of the annular limit block 208 and the rubber pad 209, the position of the filter plate 203 is restricted, so that the filter plate 203 has a buffering and filtering effect. If it is necessary to adjust the opening and closing of the valve ball 104, the user holds the rotating ring 304 and presses the handle 310 at the same time, which can drive the slider 309 to move toward one side of the rotating ring 304. Since it is in a fixed state, the position of the lever 307 is restricted, so that the side of the lever 307 close to the block 308 is lifted upward, and the lever 30 7 is pressed down on the side close to the guide rod 312, so that the block 308 is disengaged from the slot 314, and the user then rotates the swivel 304, thereby driving the gear meshing transmission to realize the rotation operation of the valve ball 104, which is convenient for adjusting the opening and closing of the ball valve. When it is necessary to clean the filter plate 203, first stop supplying water to the water inlet side, then open the sealing cover 205, pull the filter plate 203 to the opening 204 through the pull rope 206, and then clean the surface of the filter plate 203. After cleaning, use the tool to move the filter plate 203 to the corresponding position. At this time, the rubber pad 209 will conflict with the inner wall of the left valve body 101, playing a sealing and limiting effect.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A corrosion-resistant ceramic ball valve, comprising a left valve body (101), a right valve body (102), a valve cover (103) and a valve ball (104); the left valve body (101) and the right valve body (102) are butt-jointed and mounted by a plurality of bolts to form a ball cavity (105) for mounting the valve ball (104); a plurality of sealing grooves (106) are provided at the connection between the left valve body (101), the right valve body (102) and the valve cover (103); sealing gaskets are provided inside the sealing grooves (106); a side of the left valve body (101) away from the valve ball (104) is set as a water inlet end; a side of the right valve body (102) away from the valve ball (104) is set as a water outlet end; It is characterized in that The left valve body (101) is provided with a filtering mechanism (200) for filtering water, and the right valve body (102) is provided with an opening adjustment mechanism (300) matched with the valve ball (104) on the outside to control the opening and closing of the valve ball (104); The filtering mechanism (200) comprises a connecting block (201) fixedly mounted on the left valve body (101); a slide groove (202) is arranged inside the connecting block (201); a filter plate (203) is slidably connected to the inner wall of the slide groove (202); the bottom end of the filter plate (203) is rotatably connected to the inner wall of the left valve body (101); an opening (204) is arranged at the bottom of the connecting block (201); a sealing cover (205) is arranged at the opening (204); a pull rope (206) is fixedly arranged on the surface of the filter plate (203); a limiting rod (207) is fixedly connected to the inner wall of the connecting block (201) on the side close to the opening (204); the other end of the pull rope (206) is wound around the limiting rod (207).

2. A corrosion-resistant ceramic ball valve according to claim 1, characterized in that: The opening adjustment mechanism (300) comprises a rotating shaft (301), one end of which passes through the valve cover (103) and is connected to the valve ball (104), and the other end of the rotating shaft (301) is fixedly provided with a first gear (302), one side of the first gear (302) is meshed with a second gear (303), the gear shaft of the second gear (303) is rotatably connected to the right valve body (102), a rotating ring (304) is rotatably sleeved on the outer side of the right valve body (102), a face gear (305) is fixedly provided on the side of the rotating ring (304) close to the second gear (303), and the face gear (305) is meshed with the second gear (303), and a locking assembly for limiting gear transmission is provided inside and outside the rotating ring (304).

3. A corrosion-resistant ceramic ball valve according to claim 2, characterized in that: The locking assembly comprises a placement groove (306) provided inside the rotating ring (304), a rotating rod being fixedly provided inside the placement groove (306), a lever (307) being rotatably connected to the outer side of the rotating rod, a clamping block (308) being fixedly provided on the side of the lever (307) away from the face gear (305), a slider (309) being provided on the side of the lever (307) close to the face gear (305), the slider (309) being slidably connected to the rotating ring (304), the top of the slider (309) extending to the outer side of the rotating ring (304) and being fixedly connected to a handle (310), the slider (309) being connected to the lever (307) via a limiting member, and a spring (311) being fixedly provided between the lever (307) and the bottom wall of the placement groove (306).

4. A corrosion-resistant ceramic ball valve according to claim 3, characterized in that: The limiting member comprises a guide rod (312) fixedly arranged at the bottom of the slider (309); a through hole (313) is opened on one side of the lever (307); and the guide rod (312) is slidably arranged inside the through hole (313).

5. The corrosion-resistant ceramic ball valve according to claim 1, characterized in that: An annular limiting block (208) is fixedly disposed inside the left valve body (101), and the filter plate (203) is in contact with the annular limiting block (208) and is not fixed.

6. The corrosion-resistant ceramic ball valve according to claim 1, characterized in that: A rubber pad (209) is fixedly arranged on the top of the filter plate (203).

7. The corrosion-resistant ceramic ball valve according to claim 1, characterized in that: The filter plate (203) rotates toward the water inlet end, and the rotation angle range of the filter plate (203) is 0 to 90 degrees.

8. The corrosion-resistant ceramic ball valve according to claim 3, characterized in that: A plurality of clamping grooves (314) are provided on the outer wall of the right valve body (102), and the size of the clamping grooves (314) is adapted to the track displacement of the clamping block (308).

9. The corrosion-resistant ceramic ball valve according to claim 1, characterized in that: The inner and outer sides of the left valve body (101), the right valve body (102), the valve cover (103) and the valve ball (104) are all coated with wear-resistant and corrosion-resistant coatings.

10. The corrosion-resistant ceramic ball valve according to claim 1, characterized in that: The left valve body (101), the right valve body (102), the valve cover (103) and the valve ball (104) are all made of ceramic materials with high hardness, corrosion resistance and good thermal conductivity.

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