Flange type ball valve with anti-freezing structure

Abstract

The flange type ball valve with the anti-freezing structure comprises a valve body, a mounting flange welded to the top of the upper end of the valve body is connected with a driving assembly, and the middle of the lower end of the driving assembly is connected with the middle of the top of a valve element body arranged in the valve body. An extension rod detachably connected to the middle of the bottom of the lower end of the valve element body penetrates through the limiting base to be connected with the middle of the upper end of the rotary disc, water leakage holes are correspondingly formed in the two sides of the limiting base and the rotary disc, and a liquid drainage cavity is formed in a supporting base below a through hole. According to the flange type ball valve with the anti-freezing structure, the valve element body is driven by the driving assembly to close the valve body, water leakage holes correspondingly formed in a rotating disc and a limiting seat correspond in position, then liquid left in the valve body enters a liquid discharging cavity through the water leakage holes, then an electromagnetic valve is opened, and the valve body is closed. The liquid in the valve body is effectively prevented from being frozen, so that the volume is increased, and the valve is effectively prevented from being broken.

Description

Technical Field

[0001] This utility model relates to the technical field of flanged ball valves, specifically a flanged ball valve with an antifreeze structure. Background Technology

[0002] A flanged ball valve is a type of ball valve connected via a flange. Its core component is a ball, which rotates around the axis of the valve stem to open and close the valve. When the valve stem pushes the valve core (ball) to rotate 90 degrees, the ball's passage connects or disconnects from the valve seat's passage, thereby allowing the flow or blockage of the medium.

[0003] A search revealed that a typical example of a flanged ball valve in the prior art is disclosed in CN214617953U, which describes a flanged ball valve body comprising a valve body and an opening and closing control mechanism. Connecting rings are fixed to the outer sides of both ends of the valve body. The opening and closing control mechanism is fixed to the valve body and includes a support frame, a second fixing bolt, a motor, a motor shaft, a rotating shaft, double-ended bolts, fasteners, a sealing ring, and a ball. In this flanged ball valve body, the rotating shaft passes through the top of the valve body and the ball, and is inserted into the inner bottom of the valve body. The fastener is then placed on top of the rotating shaft, and the fastener is tightened downwards until the sealing ring is firmly fixed to the valve body. The first fixing bolt is then tightened to secure the ball, and the double-ended bolt is tightened to fix the top of the rotating shaft to the motor shaft. The second fixing bolt is then used to fix the motor and the support frame. Limiting rings are placed on the left and right sides of the ball, and the first fixing bolt is tightened to fix the limiting rings, facilitating the assembly of the device.

[0004] In summary, existing flanged ball valves, due to installation environment limitations, are typically directly exposed to the outside air. When the ambient temperature drops below zero, the liquid flowing inside the ball valve is prone to solidification. This not only affects the normal operation of the ball valve but also causes the solidified liquid to expand in volume, damaging the rubber seals inside the ball valve and thus affecting its sealing performance. To address these issues, improvements to the existing equipment are necessary. Utility Model Content

[0005] The purpose of this utility model is to provide a flanged ball valve with an antifreeze structure to solve the problem mentioned in the background art that when the external ambient temperature drops below zero, the liquid flowing inside the ball valve is very likely to solidify. On the one hand, this affects the normal use of the ball valve, and on the other hand, the solidified liquid will expand in volume, damaging the rubber seals inside the ball valve and thus affecting the sealing performance of the ball valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flanged ball valve with an antifreeze structure, comprising a valve body,

[0007] The valve body is welded to corresponding connecting flanges on both sides, and the mounting flange welded to the top of the valve body is connected to the drive assembly. The middle of the lower end of the drive assembly is connected to the middle of the top of the valve core body inside the valve body. The extension rod detachably connected to the middle of the bottom of the lower end of the valve core body passes through the limiting seat and connects to the middle of the upper end of the turntable. The outer side of the limiting seat is detachably connected to the inner wall of the through hole opened in the middle of the lower end of the valve body. At the same time, the limiting seat and the turntable are provided with corresponding water leakage holes on both sides. A support base is provided below the through hole, and a drain chamber is provided inside the support base. At the same time, a drain pipe is provided on one side of the support base at the bottom of the drain chamber. A solenoid valve is installed on the drain pipe. An insulation sleeve is sleeved on the outside of the valve body, and the connection of the insulation sleeve is connected by Velcro. An electric heating wire is provided inside the insulation sleeve.

[0008] Preferably, the drive assembly includes a drive motor, which is located inside the mounting box. The output end of the drive motor is connected to a rotating shaft. The lower end of the rotating shaft passes through the positioning frame and the rubber sleeve and is connected to the connecting seat. The connecting seat is detachably connected to the top of the valve core body located in the middle of the valve body.

[0009] Preferably, the bottom of the mounting box is fitted to the top of the mounting flange through a sealing gasket, and the outer side of the bottom of the mounting box is connected to the mounting flange through the sealing gasket by equidistant fixing bolts. At the same time, the lower end of the mounting box is detachably connected to the outer side of the positioning frame. The inner side of the middle of the mounting flange is detachably connected to the outer side of the upper end of the rubber sleeve. The rubber sleeve has a T-shaped structure, and a positioning block is fitted onto the outer side of the lower end of the rubber sleeve. The outer side of the positioning block is connected to the upper end of the valve body, and the positioning block is located above the connecting seat.

[0010] Preferably, the extension rod, the limiting seat, and the turntable are all made of stainless steel, and the outer side of the extension rod is rotatably connected to the middle of the limiting seat. At the same time, the turntable forms a rotating structure with the limiting seat through the extension rod.

[0011] Preferably, a control panel is provided in the middle of the front side of the insulation sleeve, and the control panel is electrically connected to the controller of the electric heating wire. At the same time, the control panel is electrically connected to the drive motor and the solenoid valve through a circuit.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this flanged ball valve with an antifreeze structure,

[0013] (1) In order to solve the problem that when the external ambient temperature drops below zero, the liquid flowing inside the ball valve is very likely to solidify, which affects the normal use of the ball valve on the one hand, and the volume expansion after the liquid solidifies, which damages the rubber seals inside the ball valve and thus affects the sealing performance of the ball valve, this application drives the valve core body to close the valve body through the drive component, so that the corresponding water leakage holes on the turntable and the limit seat are aligned. Then, the liquid stagnating inside the valve body enters the drain chamber through the water leakage hole, and then the solenoid valve is opened to allow the liquid to be discharged through the drain pipe, which effectively prevents the liquid inside the valve body from freezing and increasing in volume, thereby causing the valve to break.

[0014] (2) In order to solve the problem that when the external ambient temperature drops below zero, the liquid flowing inside the ball valve is very likely to solidify, which affects the normal use of the ball valve on the one hand, and the volume expansion after the liquid solidifies, which damages the rubber seals inside the ball valve and thus affects the sealing performance of the ball valve, this application sets up an insulation sleeve and sets an electric heating wire inside the insulation sleeve to keep the temperature of the valve body and valve core body above zero degrees, thereby preventing the internal fluid from solidifying and effectively avoiding damage to the internal components of the ball valve caused by the solidification of the fluid. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0018] Figure 4 This is a front view structural diagram of the present utility model.

[0019] In the diagram: 1. Valve body; 2. Connecting flange; 3. Mounting flange; 4. Sealing gasket; 5. Mounting box; 6. Fixing bolts; 7. Drive motor; 8. Rotating shaft; 9. Positioning bracket; 10. Rubber sleeve; 11. Positioning block; 12. Connecting seat; 13. Valve core body; 1301. Extension rod; 1302. Limit seat; 1303. Turntable; 14. Support base; 15. Drainage chamber; 16. Drainage pipe; 17. Solenoid valve; 18. Insulation sleeve; 19. Electric heating wire; 20. Control panel. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a flanged ball valve with an antifreeze structure, according to... Figure 1 , Figure 2 and Figure 4 As shown, the valve body 1 is welded to the corresponding connecting flanges 2 on both sides, and the mounting flange 3 welded to the top of the valve body 1 is connected to the drive assembly. At the same time, the middle of the lower end of the drive assembly is connected to the middle of the top of the valve core body 13 inside the valve body 1.

[0022] Specifically, the drive assembly includes a drive motor 7, which is located inside the mounting box 5. The output end of the drive motor 7 is connected to a rotating shaft 8. The lower end of the rotating shaft 8 passes through a positioning bracket 9 and a rubber sleeve 10 and connects to a connecting seat 12. The connecting seat 12 is detachably connected to the top of the valve core body 13 located in the middle of the valve body 1. The bottom of the lower end of the mounting box 5 is fitted to the upper end of the mounting flange 3 via a sealing gasket 4. The outer side of the lower end of the mounting box 5 is connected to the mounting flange 3 via equally spaced fixing bolts 6 passing through the sealing gasket 4. The sealing gasket 4 improves the sealing performance between the mounting box 5 and the mounting flange 3. The lower end of the inner part of the packing 5 is detachably connected to the outer side of the positioning frame 9. The positioning frame 9 facilitates the limiting of the rotating shaft 8 to prevent rotational deviation. The inner side of the middle of the mounting flange 3 is detachably connected to the outer side of the upper end of the rubber sleeve 10. The rubber sleeve 10 has a T-shaped structure. At the same time, a positioning block 11 is sleeved on the outer side of the lower end of the rubber sleeve 10. The outer side of the positioning block 11 is connected to the upper end of the inner part of the valve body 1. The positioning block 11 is located above the connecting seat 12. The rubber sleeve 10 and the positioning block 11 are used together to prevent liquid from overflowing through the upper channel of the valve body 1, thus improving the sealing performance. Secondly, it facilitates the limiting of the rotating shaft 8 to prevent rotational deviation.

[0023] In use, the drive motor 7 drives the rotating shaft 8 to rotate, and then the rotating shaft 8 drives the connecting seat 12 and the valve core body 13 to rotate, so that the connection port on the valve core body 13 opens corresponding to the liquid channels on both sides of the valve body 1, allowing the ball valve to transport fluid. Conversely, the connection port on the valve core body 13 closes to the other two sides inside the valve body 1, closing the liquid channels and preventing the ball valve from transporting fluid.

[0024] according to Figure 1 , Figure 3 and Figure 4 As shown, the extension rod 1301, which is detachably connected to the middle of the bottom of the lower end of the valve core body 13, passes through the limiting seat 1302 and connects to the middle of the upper end of the turntable 1303. The outer side of the limiting seat 1302 is detachably connected to the inner wall of the through hole opened in the middle of the lower end of the valve body 1. At the same time, water leakage holes are opened on both sides of the limiting seat 1302 and the turntable 1303. The extension rod 1301, the limiting seat 1302 and the turntable 1303 are all made of stainless steel, and the outer side of the extension rod 1301 is rotatably connected to the middle of the limiting seat 1302. Meanwhile, the turntable 1303 forms a rotating structure with the limiting seat 1302 via the extension rod 1301. A support base 14 is provided below the through hole, and a drain chamber 15 is opened inside the support base 14. At the same time, a drain pipe 16 is provided on one side of the support base 14 at the bottom of the drain chamber 15. A solenoid valve 17 is installed on the drain pipe 16. When the valve core body 13 is rotated, the ball valve is closed, so that the extension rod 1301 at the lower end of the valve core body 13 synchronously drives the turntable 1303 to rotate, so that the turntable 1303 rotates. The drain hole on valve 303 corresponds to the drain hole on valve limit seat 1302. The fluid remaining between valve body 1 and valve core body 13 then flows into drain chamber 15. Next, solenoid valve 17 is opened, allowing the fluid to drain through drain pipe 16, thus eliminating water inside the ball valve and preventing valve body 1 from bursting in cold weather. An insulation sleeve 18 is fitted onto the outside of valve body 1, and the connection of the insulation sleeve 18 is via Velcro. An electric heating wire 19 is installed inside the insulation sleeve 18. A central section on the front of the insulation sleeve 18 is... A control panel 20 is provided, and the control panel 20 is electrically connected to the controller of the electric heating wire 19. At the same time, the control panel 20 is electrically connected to the drive motor 7 and the solenoid valve 17 through the circuit. The controller is controlled by the control panel 20 to turn on the electric heating wire 19, so that the electric heating wire 19 generates heat to heat the valve body 1 and the valve core body 13, so that the temperature of the fluid inside the valve body 1 is higher than 0 degrees Celsius. At the same time, under the action of the insulation sleeve 18, heat loss is prevented and the heat preservation and antifreeze effect is improved.

[0025] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model 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. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flanged ball valve with an antifreeze structure, comprising a valve body (1), characterized in that: The valve body (1) is welded to the corresponding connecting flanges (2) on both sides, and the mounting flange (3) welded to the top of the upper end of the valve body (1) is connected to the drive assembly. At the same time, the middle of the lower end of the drive assembly is connected to the middle of the top of the valve core body (13) inside the valve body (1). The extension rod (1301) detachably connected to the middle of the bottom of the lower end of the valve core body (13) passes through the limiting seat (1302) and is connected to the middle of the upper end of the turntable (1303). The outer side of the limiting seat (1302) is detachably connected to the inner wall of the through hole opened in the middle of the lower end of the valve body (1). Both sides of the limiting seat (1302) and the turntable (1303) are provided with corresponding water leakage holes. A support base (14) is provided below the through hole, and a drain chamber (15) is provided inside the support base (14). At the same time, a drain pipe (16) is provided on one side of the support base (14) at the bottom of the drain chamber (15). A solenoid valve (17) is installed on the drain pipe (16). An insulation sleeve (18) is sleeved on the outside of the valve body (1), and the connection of the insulation sleeve (18) is connected by Velcro. An electric heating wire (19) is provided inside the insulation sleeve (18).

2. The flanged ball valve with antifreeze structure as described in claim 1, characterized in that: The drive assembly includes a drive motor (7), which is located inside the mounting box (5). The output end of the drive motor (7) is connected to a rotating shaft (8). The lower end of the rotating shaft (8) passes through the positioning frame (9) and the rubber sleeve (10) and is connected to the connecting seat (12). The connecting seat (12) is detachably connected to the top of the valve core body (13) located in the middle of the valve body (1).

3. The flanged ball valve with antifreeze structure as described in claim 2, characterized in that: The bottom of the mounting box (5) is fitted to the top of the mounting flange (3) through a sealing gasket (4), and the bottom outer side of the mounting box (5) is connected to the mounting flange (3) through the sealing gasket (4) by equidistant fixing bolts (6). At the same time, the bottom of the inside of the mounting box (5) is detachably connected to the outside of the positioning frame (9). The middle inner side of the mounting flange (3) is detachably connected to the outer side of the upper end of the rubber sleeve (10). The rubber sleeve (10) has a T-shaped structure. At the same time, a positioning block (11) is sleeved on the outer side of the lower end of the rubber sleeve (10). The outer side of the positioning block (11) is connected to the upper end of the inside of the valve body (1), and the positioning block (11) is located above the connecting seat (12).

4. The flanged ball valve with antifreeze structure as described in claim 1, characterized in that: The extension rod (1301), the limiting seat (1302), and the turntable (1303) are all made of stainless steel. The outer side of the extension rod (1301) is rotatably connected to the middle of the limiting seat (1302). At the same time, the turntable (1303) forms a rotating structure with the limiting seat (1302) through the extension rod (1301).

5. The flanged ball valve with antifreeze structure as described in claim 1, characterized in that: The insulation sleeve (18) has a control panel (20) in the middle of its front side. The control panel (20) is electrically connected to the controller of the electric heating wire (19). The control panel (20) is also electrically connected to the drive motor (7) and the solenoid valve (17) through a circuit.

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