Two-piece type ball valve

Abstract

The utility model relates to the technical field of valves, and discloses a two-piece type ball valve which comprises a pipe body, a valve body is arranged in the middle of the pipe body, an air inlet pipe and a waste discharge pipe are arranged on one side of the valve body, a valve element is rotationally connected into the valve body, a locking mechanism for limiting rotation of the valve element is installed at the upper end of the valve element, and the valve body is connected with a valve rod. A channel for fluid circulation penetrates through the middle of the valve element, baffles are diagonally arranged in a cavity of the valve element, the baffles are fixedly connected with the valve element, flow guide plates are arranged in the baffles and can buffer fluid flow, the flow guide plates are connected with the baffles through buffer springs, and the baffles are fixedly connected with the valve element. When the valve element rotates, the baffle in the cavity is driven to rotate along with the valve element, before the cavity of the valve element is opposite to the inner wall of the valve body, the gap between the valve body and the valve element is closed through the baffle, and the situation that when the valve element is closed, fluid enters the gap between the valve element and the valve body and enters an air injection device through an air inlet pipe, and consequently the device is damaged is avoided; therefore, the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a two-piece ball valve. Background Art

[0002] Two-piece ceramic ball valves are increasingly used in industries such as oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, fluid utilities, electricity, municipal administration, and steel. Two-piece ceramic ball valves can be tightly closed by simply rotating 90 degrees and applying a very small torque. The completely equal inner cavity of the valve body provides a very small resistance, straight-through flow path for the medium.

[0003] After searching, a document with publication number (CN217030029U) discloses a two-piece ball valve for preventing medium deposition, including a valve body, wherein the valve body includes a valve core, a valve stem and a valve seat, a flow channel is also provided in the valve body, a valve cavity is provided in the valve core, a conduit is provided on the side of the valve body, the conduit is arranged in the radial direction of the flow channel, the opening of the conduit is opposite to the valve cavity, and the conduit connects the valve cavity with the outside of the valve body when the ball valve is closed, an air pipe is also provided on the side of the valve body, the air pipe is connected to the valve cavity, and the air pipe is also connected to an injection device.

[0004] When the valve core of the above device rotates, there is a gap between the valve core and the valve body, which causes fluid to enter the gap between the valve body and the valve core. The fluid entering the gap enters the air pipe through the pipeline, causing the fluid to be filled into the jet device, resulting in damage to the device, and the practicality is low.

[0005] For this purpose, we propose a two-piece ball valve. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a two-piece ball valve.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a two-piece ball valve, comprising a tube body, a valve body is arranged in the middle of the tube body, an air inlet pipe and a waste pipe are arranged on one side of the valve body, a valve core is rotatably connected inside the valve body, a locking mechanism for limiting the rotation of the valve core is installed on the upper end of the valve core, a channel for fluid circulation passes through the middle of the valve core, a baffle is diagonally arranged in the cavity of the valve core, the baffle is fixedly connected to the valve core, a guide plate is arranged inside the baffle, the guide plate can buffer the fluid flow, and the guide plate is connected to the baffle through a buffer spring.

[0008] As a preferred embodiment of the present invention, the baffle is crescent-shaped as a whole, and the baffle is tightly fitted to the inner wall of the valve body, and the baffle can limit the inflow flow.

[0009] As a preferred embodiment of the utility model, a plurality of grooves are provided on the surface of the guide plate, which can guide the flow direction of the fluid. The inner wall of the valve core is fixedly connected to a buffer spring, and the other end of the buffer spring is fixedly connected to the guide plate.

[0010] As a preferred embodiment of the utility model, the interior of the baffle is arc-shaped, the guide plate is arc-shaped as a whole, and there is a space between the baffle and the guide plate for installing a buffer spring.

[0011] As a preferred embodiment of the present invention, the interior of the locking mechanism includes a shell, a handle is rotatably connected inside the shell, one end of the handle is fixedly connected to the valve core, a positioning plate is fixedly connected to the handle, and the lower end of the positioning plate is clamped with a limit plate.

[0012] As a preferred embodiment of the present invention, the limit plate is slidably connected to the handle and the housing, the bottom end of the limit plate is abutted against an elastic member, the elastic member is sleeved on the handle, and the elastic member is a return spring.

[0013] As a preferred embodiment of the present invention, a plurality of semicircular protrusions are provided on the bottom end of the positioning plate, and a plurality of semicircular grooves are provided on the limiting plate, and the number of the semicircular grooves is the same as the number of the semicircular protrusions.

[0014] As a preferred embodiment of the utility model, the other end of the air inlet pipe is fixedly connected with an injection device, and the other end of the exhaust pipe is provided with a container for collecting residual fluid.

[0015] Beneficial Effects

[0016] The utility model provides a two-piece ball valve. It has the following beneficial effects:

[0017] 1. In this two-piece ball valve, when the valve core rotates, the baffle in the cavity drives the baffle to rotate along with it. Before the valve core cavity faces the inner wall of the valve body, the baffle closes the gap between the valve body and the valve core to prevent the fluid from entering the gap between the valve core and the valve body when the valve core is closed, and entering the jet device through the air inlet pipe to cause damage to the device, thereby improving the practicality of the device.

[0018] 2. This two-piece ball valve drives the positioning plate to rotate by turning the handle manually. When the positioning plate rotates, the semicircular protrusion at the lower end separates from the groove at the upper end of the limit plate, and presses the limit plate downward. The valve core is rotated by turning the handle, and the limit plate is pressed upward by the elastic member. The limit plate abuts against the positioning plate, and the semicircular protrusion fits with the semicircular groove. The limit plate limits the movement of the positioning plate to avoid rotation caused by accidentally touching the handle, which causes the internal valve core to rotate, resulting in a change in the opening and closing state of the device, thereby improving the stability of the device.

[0019] 3. This two-piece ball valve guides the fluid through the grooves opened on the surface of the guide plate, thereby reducing the scouring of the baffle by the fluid and extending the service life of the baffle. The guide plate has an overall arc-shaped design to increase the movement distance of the fluid, release the kinetic energy carried by the fluid itself, thereby reducing the impact on the baffle and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of the utility model;

[0021] Figure 2 This is a schematic diagram of the valve core structure of the utility model;

[0022] Figure 3 This is a cross-sectional view of the utility model;

[0023] Figure 4 This is a cross-sectional view of the internal structure of the locking mechanism of the utility model;

[0024] Figure 5 It is a side sectional view of the valve core of the utility model.

[0025] Legend: 1. Tube body; 2. Valve body; 3. Inlet pipe; 4. Exhaust pipe; 5. Locking mechanism; 501. Handle; 502. Positioning plate; 503. Limiting plate; 504. Elastic part; 505. Shell; 6. Baffle; 7. Valve core; 8. Guide plate; 801. Buffer spring. DETAILED DESCRIPTION

[0026] A two-piece ball valve, such as Figure 1-5 As shown, a two-piece ball valve comprises a tube body 1, a valve body 2 is arranged in the middle of the tube body 1, an air inlet pipe 3 and a waste pipe 4 are arranged on one side of the valve body 2, a valve core 7 is rotatably connected inside the valve body 2, a locking mechanism 5 for limiting the rotation of the valve core 7 is installed on the upper end of the valve core 7, a channel for fluid circulation is penetrated in the middle of the valve core 7, a baffle 6 is diagonally arranged in the cavity of the valve core 7, the baffle 6 is fixedly connected to the valve core 7, and the baffle 6 in the cavity is driven to rotate along with the rotation of the valve core 7 when the valve core 7 rotates, and when the baffle 6 rotates, Before the cavity of the valve core 7 is opposite to the inner wall of the valve body 2, the gap between the valve body 2 and the valve core 7 is closed by the baffle plate 6 to prevent the fluid from entering the gap between the valve core 7 and the valve body 2 when the valve core 7 is closed, thereby improving the practicality of the device. A guide plate 8 is arranged inside the baffle plate 6, and the guide plate 8 can buffer the fluid flow. The guide plate 8 is connected to the baffle plate 6 through a buffer spring 801, and the impact force generated by the fluid is absorbed and buffered by the buffer spring 801 on one side of the guide plate 8, thereby extending the service life of the device.

[0027] Specifically, the baffle 6 is overall in a plump crescent shape, and the baffle 6 fits tightly against the inner wall of the valve body 2. The baffle 6 can limit the amount of fluid flowing in and increase the flow rate of the fluid. Before the valve core 7 cavity is relative to the inner wall of the valve body 2, the gap between the valve body 2 and the valve core 7 is closed by the plump crescent-shaped baffle 6 to prevent the fluid from entering the gap between the valve core 7 and the valve body 2 when the valve core 7 is closed.

[0028] Specifically, a plurality of grooves are provided on the surface of the guide plate 8, which can guide the flow direction of the fluid. The inner wall of the valve core 7 is fixedly connected to the buffer spring 801, and the other end of the buffer spring 801 is fixedly connected to the guide plate 8. The fluid is guided through the grooves provided on the surface of the guide plate 8, thereby reducing the scouring of the baffle 6 by the fluid, extending the service life of the baffle 6, and improving the practicability of the device.

[0029] Specifically, the interior of the baffle 6 is arc-shaped, and the guide plate 8 is arc-shaped as a whole. There is space between the baffle 6 and the guide plate 8 for installing the buffer spring 801. The guide plate 8 increases the movement distance of the fluid through the overall arc-shaped design, so that the kinetic energy carried by the fluid itself is released, thereby reducing the impact on the baffle 6 and further improving the practicality of the device.

[0030] Specifically, the interior of the locking mechanism 5 includes a shell 505, in which a handle 501 is rotatably connected, one end of the handle 501 is fixedly connected to the valve core 7, a positioning plate 502 is fixedly connected to the handle 501, and the lower end of the positioning plate 502 is clamped with a limiting plate 503. The handle 501 is rotated by manpower, and the rotation of the handle 501 drives the positioning plate 502 to rotate. When the positioning plate 502 rotates, the semicircular protrusion at the lower end is separated from the groove at the upper end of the limiting plate 503, and the limiting plate 503 is squeezed downward, and the valve core 7 is rotated by the rotation of the handle 501.

[0031] Specifically, the limit plate 503 is slidably connected to the handle 501 and the shell 505, and the bottom end of the limit plate 503 is abutted against an elastic member 504, and the elastic member 504 is sleeved on the handle 501. The elastic member 504 is a return spring. The limit plate 503 is pressed upward by the elastic member 504, and the limit plate 503 abuts against the positioning plate 502, and the limit plate 503 limits the range of movement of the positioning plate 502.

[0032] Specifically, a plurality of semicircular protrusions are provided at the bottom end of the positioning plate 502, and a plurality of semicircular grooves are provided on the limiting plate 503. The number of the semicircular grooves is the same as the number of the semicircular protrusions. Through the fit between the semicircular protrusions and the semicircular grooves, the limiting plate 503 limits the movement of the positioning plate 502 to avoid accidental touching of the handle 501 and causing rotation, thereby causing the internal valve core 7 to rotate with it, causing the opening and closing state of the device to change, thereby improving the stability of the device.

[0033] Specifically, the other end of the air inlet pipe 3 is fixedly connected with an injection device, and the other end of the exhaust pipe 4 is provided with a container for collecting residual fluid. The gas is sent into the valve core 7 through the injection device, and the excess fluid is discharged from the exhaust pipe 4 into the container for collection through gas squeezing.

[0034] The working principle of the utility model is as follows: the handle 501 is rotated by manpower, and the rotation of the handle 501 drives the positioning plate 502 to rotate. When the positioning plate 502 rotates, the semicircular protrusion at the lower end is separated from the groove at the upper end of the limit plate 503, and the limit plate 503 is pressed downward, and the valve core 7 is driven to rotate by the rotation of the handle 501. When the valve core 7 rotates, the baffle 6 in the cavity is driven to rotate along with it. When the baffle 6 rotates, before the cavity of the valve core 7 is opposite to the inner wall of the valve body 2, the baffle 6 closes the gap between the valve body 2 and the valve core 7, so as to prevent the fluid from entering the gap between the valve core 7 and the valve body 2 when the valve core 7 is closed, and entering the spray nozzle through the intake pipe 3. In the gas device, damage to the device is caused, thereby improving the practicality of the device. At this time, gas is sent into the valve core 7 through the jet device, and excess fluid is discharged from the exhaust pipe 4 through gas squeezing, and the limit plate 503 is squeezed upward by the elastic member 504, and the limit plate 503 abuts against the positioning plate 502. The limit plate 503 limits the range of movement of the positioning plate 502. The semicircular protrusion fits with the semicircular groove, and the limit plate 503 limits the movement of the positioning plate 502, avoiding accidental touching of the handle 501 to cause rotation, thereby causing the internal valve core 7 to rotate with it, causing the opening and closing state of the device to change, thereby improving the stability of the device.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A two-piece ball valve, comprising a tube body (1), a valve body (2) being arranged in the middle of the tube body (1), an air inlet pipe (3) and a waste discharge pipe (4) being arranged on one side of the valve body (2), characterized in that: The valve body (2) is internally rotatably connected to a valve core (7), and a locking mechanism (5) for limiting the rotation of the valve core (7) is installed at the upper end of the valve core (7). A channel for fluid circulation runs through the middle of the valve core (7), and a baffle (6) is diagonally arranged in the cavity of the valve core (7). The baffle (6) is fixedly connected to the valve core (7), and a guide plate (8) is arranged inside the baffle (6). The guide plate (8) can buffer the flow of the fluid, and the guide plate (8) is connected to the baffle (6) via a buffer spring (801).

2. The two-piece ball valve according to claim 1, characterized in that: The baffle (6) is crescent-shaped as a whole, and is tightly fitted to the inner wall of the valve body (2). The baffle (6) can limit the amount of fluid entering.

3. The two-piece ball valve according to claim 1, characterized in that: The guide plate (8) is provided with a plurality of grooves on its surface, and the grooves are capable of guiding the flow direction of the fluid. The inner wall of the valve core (7) is fixedly connected to a buffer spring (801), and the other end of the buffer spring (801) is fixedly connected to the guide plate (8).

4. The two-piece ball valve according to claim 1, characterized in that: The interior of the baffle (6) is arc-shaped, and the guide plate (8) is arc-shaped as a whole. There is a space between the baffle (6) and the guide plate (8) for installing a buffer spring (801).

5. The two-piece ball valve according to claim 1, characterized in that: The locking mechanism (5) comprises a housing (505) inside which a handle (501) is rotatably connected. One end of the handle (501) is fixedly connected to the valve core (7). A positioning plate (502) is fixedly connected to the handle (501). The lower end of the positioning plate (502) is clamped to a limit plate (503).

6. The two-piece ball valve according to claim 5, characterized in that: The limiting plate (503) is slidably connected to the handle (501) and the housing (505); the bottom end of the limiting plate (503) is abutted against an elastic member (504); the elastic member (504) is sleeved on the handle (501); and the elastic member (504) is a return spring.

7. The two-piece ball valve according to claim 5, characterized in that: The bottom end of the positioning plate (502) is provided with a plurality of semicircular protrusions, and the limiting plate (503) is provided with a plurality of semicircular grooves, and the number of the semicircular grooves is the same as the number of the semicircular protrusions.

8. The two-piece ball valve according to claim 1, characterized in that: The other end of the air inlet pipe (3) is fixedly connected to an air injection device, and the other end of the exhaust pipe (4) is provided with a container for collecting residual fluid.

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