A ball valve capable of detecting low-temperature anti-freezing function

Abstract

The present invention discloses a ball valve capable of detecting a low-temperature anti-freezing function, which includes a valve pipe, a support frame, a support plate and a transmission shaft. A pressure relief housing is disposed through the side wall of the valve pipe, and the right side of the valve pipe is connected to a first connecting pipe through a first screw and a first nut. The left side of the valve pipe is connected to a second connecting pipe through a first screw and a first nut, and one end of the second connecting pipe away from the valve pipe is connected to a first sealing cover through a second screw and a second nut. The upper end of the second connecting pipe communicates with an outer connecting pipe, and an electric heating sleeve is wrapped around the outer side of the outer connecting pipe through a binding band. The support frame is disposed at the upper end of the second connecting pipe. For the ball valve capable of detecting the low-temperature anti-freezing function, under the action of the provided temperature sensor, when the temperature sensor detects that the external temperature is lower than a certain value, the electric heating sleeve can be controlled by a controller to pre-heat the surface of the outer connecting pipe, so that the medium flowing into the valve pipe is not easily frozen, or the frozen fluid at the valve core can be melted by the heated medium.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, and particularly to a ball valve capable of detecting low-temperature anti-freezing function. Background Art

[0002] A ball valve is a valve whose opening and closing member is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. Ball valves are widely used in industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal engineering, and steel. They play a crucial role in the national economy. Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium. It only needs a 90-degree rotation operation and a very small rotational torque to close tightly. Generally, ball valves do not have a filtering function. Over time, the inside of the ball valve is easily affected by impurities in the medium, resulting in internal damage and reduced sealing effect. Moreover, in cold regions, the valve core is easily frozen. After the valve core is frozen, it is difficult to open and close the valve. There is a need for a ball valve capable of detecting low-temperature anti-freezing function to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a ball valve capable of detecting low-temperature anti-freezing function to solve the problems mentioned in the above background art that general ball valves do not have a filtering function, the inside of the ball valve is easily affected by impurities in the medium over time, resulting in internal damage and reduced sealing effect, and in cold regions, the valve core is easily frozen, and it is difficult to open and close the valve after the valve core is frozen.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A ball valve capable of detecting low-temperature anti-freezing function, including a valve pipe, a support frame, a support plate, and a transmission shaft,

[0005] A pressure relief housing is penetrated through the side wall of the valve pipe, and the right side of the valve pipe is connected to a first connection pipe through a first screw and a first nut. The left side of the valve pipe is connected to a second connection pipe through a first screw and a first nut, and one end of the second connection pipe away from the valve pipe is connected to a first sealing cover through a second screw and a second nut. The upper end of the second connection pipe is communicated with an outer connection pipe, and an electric heating sleeve is wrapped around the outside of the outer connection pipe through a binding band;

[0006] The support frame is arranged at the upper end of the second connection pipe, and the support frame is arranged at the upper right of the outer connection pipe. A turntable is rotatably connected to the upper end of the support frame, a solar panel is arranged at the upper end of the turntable, and a bolt is penetrated through the upper end of the turntable;

[0007] The support plate is arranged inside the valve pipe, and the left and right ends of the support plate are respectively clamped on the side walls of the second connection pipe and the first connection pipe. Meanwhile, a valve core is rotatably penetrated between the upper and lower support plates. The left and right sides of the valve core are respectively in contact with a sealing ring, and a first spring is arranged at the outer end of the sealing ring;

[0008] The transmission shaft is snap-connected with the upper end of the valve core, and the transmission shaft is sealed at one end away from the valve core and passes through the valve tube and the second sealing cover and is connected to the handle. The second sealing cover is connected to the upper end of the valve tube, and a baffle rod is provided at the upper end of the second sealing cover, and a pressure block is provided on the baffle rod.

[0009] Preferably, the pressure relief housing includes a pressure relief hole, a second spring and a piston rod, and the pressure relief hole is opened on the side wall of the pressure relief housing. The second spring is arranged in the pressure relief housing, and the piston rod is connected through the second spring.

[0010] Preferably, the first sealing cover includes a connecting rod, a filter cover and an opening slot, and the right end of the first sealing cover is connected to the filter cover through the connecting rod, and the upper end of the filter cover is provided with an opening slot.

[0011] Preferably, the support frame includes a control box, a battery, a temperature sensor and a controller, and a control box is provided at the lower end of the support frame, a battery is provided on the inner wall of the control box, a temperature sensor is provided throughout the control box, and a controller is provided inside the control box.

[0012] Preferably, two solar panels are provided, and the solar panels, the battery, the temperature sensor, the controller and the electric heating jacket are electrically connected.

[0013] Preferably, the lower end of the bolt is threadedly connected to the positioning hole, and the positioning holes are distributed in a circular array on the upper end of the support frame.

[0014] Preferably, two sealing rings are provided, and the first springs are distributed in an annular array on each sealing ring.

[0015] Preferably, two baffle rods are provided, and the two baffle rods are staggeredly arranged on the second sealing cover.

[0016] Preferably, the blocking rod and the pressing block are threadedly connected, and two pressing blocks are provided on the blocking rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the ball valve capable of detecting low temperature antifreeze function,

[0018] (1) A filter cover is provided, which can filter impurities contained in the flowing medium to reduce the damage caused by impurities to the valve pipe and valve core over a long period of time. The second nut can be disassembled, the first sealing cover can be removed, and the filter cover can be taken out from the second connecting pipe for maintenance and cleaning;

[0019] (2) Under the action of the set temperature sensor, when the temperature sensor detects that the external temperature is lower than a certain value, the controller can control the electric heating sleeve to preheat the surface of the external pipe, so that the medium flowing into the valve pipe is not easily frozen, or the heated medium can melt the frozen fluid at the valve core;

[0020] (3) The two set shift levers limit the rotation of the handle under the action of the shift levers. When the handle abuts against the shift levers, it indicates that the valve core is in a fully open or fully closed state. The handle after operation can be tightly fixed by the pressing block to prevent the handle from being misoperated;

[0021] (4) As required, during the installation of the valve tube, the solar panel can be rotated to an appropriate position through the turntable, and the position of the adjusted solar panel can be fixed by passing a bolt through the turntable and threadedly connecting it into the positioning hole. Under the action of the solar panel, light energy can be converted into electrical energy and stored in the storage battery for power supply, reducing the consumption of external electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front view sectional structure schematic diagram of the present invention;

[0023] Figure 2 is for the present invention Figure 1 the enlarged structure schematic diagram at A in;

[0024] Figure 3 is the top view structure schematic diagram of the second sealing cover of the present invention;

[0025] Figure 4 is the front view structure schematic diagram of the valve tube of the present invention;

[0026] Figure 5 is the internal structure schematic diagram of the pressure relief housing of the present invention;

[0027] Figure 6 is the top view structure schematic diagram of the turntable of the present invention;

[0028] Figure 7 is the structure schematic diagram of the first sealing cover of the present invention.

[0029] In the figure: 1. Valve tube, 201. Pressure relief hole, 202. Second spring, 203. Piston rod, 2. Pressure relief housing, 3. First screw, 4. First nut, 5. First connecting pipe, 6. Second connecting pipe, 7. Second screw, 8. Second nut, 9. First sealing cover, 901. Connecting rod, 902. Filter screen cover, 903. Opening groove, 10. Outer connecting pipe, 11. Electric heating sleeve, 12. Binding band, 13. Support frame, 1301. Control box, 1302. Storage battery, 1303. Temperature sensor, 1304. Controller, 14. Turntable, 15. Solar panel, 16. Bolt, 17. Positioning hole, 18. Support plate, 19. Valve core, 20. Sealing ring, 21. First spring, 22. Transmission shaft, 23. Second sealing cover, 24. Handle, 25. Shift lever, 26. Pressing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-7 , the present invention provides a technical solution: a ball valve capable of detecting low-temperature anti-freezing function, as Figure 1 , Figure 4 , Figure 5 and Figure 7 shown, a pressure relief housing 2 is penetrated through the side wall of the valve pipe 1, and the right side of the valve pipe 1 is connected to the first connecting pipe 5 through the first screw 3 and the first nut 4. The pressure relief housing 2 includes a pressure relief hole 201, a second spring 202 and a piston rod 203. A pressure relief hole 201 is provided on the side wall of the pressure relief housing 2. A second spring 202 is arranged inside the pressure relief housing 2, and a piston rod 203 is connected through the second spring 202. When the internal pressure is high and greater than the external atmospheric pressure, the fluid in the valve pipe 1 compresses the second spring 202 through the piston rod 203 and sprays out for pressure relief through the pressure relief hole 201. The left side of the valve pipe 1 is connected to the second connecting pipe 6 through the first screw 3 and the first nut 4, and one end of the second connecting pipe 6 away from the valve pipe 1 is connected to the first sealing cover 9 through the second screw 7 and the second nut 8. The first sealing cover 9 includes a connecting rod 901, a filter screen cover 902 and an opening groove 903. The right end of the first sealing cover 9 is connected to the filter screen cover 902 through the connecting rod 901. At the same time, an opening groove 903 is provided at the upper end of the filter screen cover 902. The filter screen cover 902 can filter impurities in the fluid and reduce the wear of the interior by impurities.

[0032] As Figure 1 , Figure 4 and Figure 6As shown in the figure, the upper end of the second connecting pipe 6 is in communication with the outer connecting pipe 10, and the outer side of the outer connecting pipe 10 is wrapped with an electric heating sleeve 11 by a strap 12. The support frame 13 is arranged at the upper end of the second connecting pipe 6 and is arranged at the upper right of the outer connecting pipe 10. The support frame 13 includes a control box 1301, a storage battery 1302, a temperature sensor 1303 and a controller 1304. The lower end of the support frame 13 is provided with the control box 1301. The inner wall of the control box 1301 is provided with the storage battery 1302, and the temperature sensor 1303 is arranged through the control box 1301. At the same time, the controller 1304 is arranged inside the control box 1301. The temperature sensor 1303 can monitor the external temperature. When the temperature is lower than a certain value, the electric heating sleeve 11 is controlled to heat by the controller 1304. The upper end of the support frame 13 is rotatably connected with a turntable 14, and a solar panel 15 is arranged at the upper end of the turntable 14. At the same time, a bolt 16 is arranged through the upper end of the turntable 14. There are two solar panels 15, and the solar panel 15, the storage battery 1302, the temperature sensor 1303, the controller 1304 and the electric heating sleeve 11 are electrically connected. Under the action of the solar panel 15, the light energy is converted into electric energy and stored in the storage battery 1302 for use. The lower end of the bolt 16 is threadedly connected in the positioning hole 17, and the positioning holes 17 are distributed in an annular array at the upper end of the support frame 13. By screwing the bolt 16 into the corresponding positioning hole 17, the turntable 14 after adjusting the orientation can be limited and fixed.

[0033] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, the support plate 18 is arranged inside the valve pipe 1, and the left and right ends of the support plate 18 are respectively clamped on the side walls of the second connecting pipe 6 and the first connecting pipe 5. At the same time, a valve core 19 is rotatably penetrated between the upper and lower support plates 18. The left and right sides of the valve core 19 are respectively in contact with the sealing rings 20, and a first spring 21 is arranged at the outer end of the sealing ring 20. There are two sealing rings 20, and the first springs 21 are distributed in an annular array on each sealing ring 20. When the internal pressure is high but less than the external air pressure, the fluid in the valve pipe 1 can relieve pressure by compressing the first spring 21 through the sealing ring 20, and the pressure can be relieved unilaterally or bilaterally. Under the action of the first spring 21, the sealing ring 20 and the valve core 19 are in better contact and sealing. When the valve core 19 rotates, the first spring 21 can play a certain buffering effect on the sealing ring 20. The transmission shaft 22 is clamped and connected to the upper end of the valve core 19, and one end of the transmission shaft 22 away from the valve core 19 is hermetically penetrated through the valve pipe 1 and the second sealing cover 23 and connected to the handle 24. The second sealing cover 23 is connected to the upper end of the valve pipe 1, and a stop rod 25 is arranged at the upper end of the second sealing cover 23. At the same time, a pressing block 26 is penetrated through the stop rod 25. There are two stop rods 25, and the two stop rods 25 are staggered on the second sealing cover 23. The stop rod 25 can limit the rotation of the handle 24. The stop rod 25 and the pressing block 26 are in threaded connection, and there are two pressing blocks 26 on the stop rod 25. The handle 24 after operation is pressed and fixed by the pressing block 26 to prevent the handle 24 from being misoperated.

[0034] Working principle: When using the ball valve with the function of detecting low-temperature anti-freezing, the electric heating sleeve 11 is bound to the outside of the outer connecting pipe 10 through the strap 12. The outer connecting pipe 10 is connected to the fluid inlet pipe, and the fluid outlet pipe is connected to the first connecting pipe 5. It can be installed according to the valve pipe 1. The solar panel 15 can be rotated through the turntable 14 to adjust its orientation. After adjustment, it is fixed by passing the bolt 16 through the turntable 14 and threadedly connecting it into the corresponding positioning hole 17. Under the action of the solar panel 15, light energy can be converted into electrical energy and stored in the storage battery 1302. Connect the storage battery 1302, and the fluid flows in through the outer connecting pipe 10, and flows out through the valve pipe 1 and the first connecting pipe 5 after being filtered by the opening groove 903 and the filter screen cover 902. When the temperature sensor 1303 detects that the external temperature is lower than a certain value, the model of the temperature sensor 1303 is JWB-CW2000. The controller 1304 can control the electric heating sleeve 11 to preheat the surface of the outer connecting pipe 10, so that the medium flowing into the valve pipe 1 is not easily frozen. Or when the valve pipe 1 is in a closed state, the frozen fluid at the spool 19 is melted by the heated medium. The handle 24 drives the transmission shaft 22 to rotate, and the transmission shaft 22 drives the spool 19 to rotate, so as to open or close the valve pipe 1. The stop lever 25 plays a limiting role on the handle 24. When the handle 24 contacts the stop lever 25, the valve pipe 1 is in a fully open or fully closed state. The handle 24 after operation can be tightly fixed by the pressing block 26 to prevent the handle 24 from being misoperated. When the internal pressure of the valve pipe 1 is high and greater than the external atmospheric pressure, the fluid in the valve pipe 1 compresses the second spring 202 through the piston rod 203 and sprays and relieves pressure through the pressure relief hole 201. When the internal pressure of the valve pipe 1 is high but less than the external atmospheric pressure, the fluid in the valve pipe 1 can relieve pressure by compressing the first spring 21 through the sealing ring 20. The second nut 8 can be removed, the first sealing cover 9 can be taken off, and the filter screen cover 902 can be taken out of the second connecting pipe 6 for maintenance and cleaning. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only a simplified description for facilitating the description of the present invention, 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 thus cannot be understood as a limitation to the protection scope of the present invention.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ball valve capable of detecting low-temperature anti-freezing function, comprising a valve pipe (1), a support frame (13), a support plate (18) and a transmission shaft (22), characterized in that: A pressure relief housing (2) is penetrated through the side wall of the valve pipe (1), and the right side of the valve pipe (1) is connected to a first connection pipe (5) through a first screw (3) and a first nut (4). The left side of the valve pipe (1) is connected to a second connection pipe (6) through a first screw (3) and a first nut (4). One end of the second connection pipe (6) away from the valve pipe (1) is connected to a first sealing cover (9) through a second screw (7) and a second nut (8). It further includes a connecting rod (901), a filter screen cover (902) and an opening groove (903). The right end of the first sealing cover (9) is connected to the filter screen cover (902) through the connecting rod (901). At the same time, an opening groove (903) is opened at the upper end of the filter screen cover (902). The upper end of the second connection pipe (6) is communicated with an outer connection pipe (10), and an electric heating sleeve (11) is wrapped outside the outer connection pipe (10) through a strap (12); The support frame (13) is arranged at the upper end of the second connection pipe (6), and the support frame (13) is arranged at the upper right of the outer connection pipe (10). A turntable (14) is rotatably connected to the upper end of the support frame (13). A solar panel (15) is arranged at the upper end of the turntable (14). At the same time, a bolt (16) is penetrated through the upper end of the turntable (14); The support plate (18) is arranged inside the valve pipe (1). The left and right ends of the support plate (18) are respectively clamped on the side walls of the second connection pipe (6) and the first connection pipe (5). At the same time, a valve core (19) is rotatably penetrated between the upper and lower support plates (18). The left and right sides of the valve core (19) are respectively in contact with a sealing ring (20), and a first spring (21) is arranged at the outer end of the sealing ring (20); The transmission shaft (22) and the upper end of the valve core (19) are clamped and connected. One end of the transmission shaft (22) away from the valve core (19) is hermetically penetrated through the valve pipe (1) and a second sealing cover (23) and connected to a handle (24). The second sealing cover (23) is connected to the upper end of the valve pipe (1). A stop rod (25) is arranged at the upper end of the second sealing cover (23). At the same time, a pressing block (26) is penetrated through the stop rod (25).

2. The ball valve capable of detecting the low-temperature anti-freezing function according to claim 1, wherein: The pressure relief housing (2) includes a pressure relief hole (201), a second spring (202) and a piston rod (203). A pressure relief hole (201) is opened on the side wall of the pressure relief housing (2). A second spring (202) is arranged inside the pressure relief housing (2), and a piston rod (203) is penetrated and connected inside the second spring (202).

3. A ball valve capable of detecting the low-temperature anti-freezing function according to claim 1, characterized in that: The support frame (13) includes a control box (1301), a storage battery (1302), a temperature sensor (1303) and a controller (1304). The control box (1301) is arranged at the lower end of the support frame (13). The storage battery (1302) is arranged on the inner wall of the control box (1301). The temperature sensor (1303) is penetrated through the control box (1301). At the same time, the controller (1304) is arranged inside the control box (1301).

4. A ball valve capable of detecting low-temperature anti-freezing function according to claim 1, characterized in that: There are two solar panels (15), and the solar panels (15), battery (1302), temperature sensor (1303), controller (1304) and electric heating sleeve (11) are electrically connected to each other.

5. A ball valve capable of detecting low-temperature anti-freezing function according to claim 1, characterized in that: The lower end of the bolt (16) is threadedly connected to the positioning hole (17), and the positioning holes (17) are arranged in an annular array at the upper end of the support frame (13).

6. A ball valve capable of detecting low-temperature anti-freezing function according to claim 1, characterized in that: There are two sealing rings (20), and the first springs (21) are arranged in an annular array on each sealing ring (20).

7. A ball valve capable of detecting a low-temperature anti-freezing function according to claim 1, characterized in that: There are two stop bars (25), and the two stop bars (25) are staggeredly arranged on the second sealing cover (23).

8. A ball valve capable of detecting low-temperature anti-freezing function according to claim 1, characterized in that: The stop bar (25) and the pressing block (26) are threadedly connected, and there are two pressing blocks (26) on the stop bar (25).

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