A temperature control valve

Abstract

This invention relates to the field of pipeline temperature control switch technology, and more particularly to a temperature control valve, comprising a valve body, a valve core, a temperature control unit, and a drive device. The valve body has an inlet channel and an outlet channel separated by a partition, and the partition has a connecting port. The valve core includes a push block positioned above the connecting port, with multiple arc teeth on its lower part. The output end of the drive device is connected to the push block. A sleeve is provided on the push block, with one end of a rotating rod connected to the output end of a drive motor, and the other end threadedly connected to the sleeve. The drive device causes the push block to gradually move towards the connecting port, and the lower part of the arc teeth gradually enters the connecting port. Water flowing through the connecting port exits through the channel between two arc teeth. Multiple channels between adjacent arc teeth form a multi-channel structure, reducing pressure loss and side leakage, greatly improving the performance of this temperature control valve. The threaded connection allows for more precise control of the channel opening size and flow rate ratio, resulting in more accurate temperature control.

Description

Technical Field

[0001] This invention relates to the field of pipeline temperature control switch technology, and in particular to a temperature control valve. Background Technology

[0002] A thermostatic valve controls the amount of hot water and adjusts it to the desired temperature by controlling the size of the valve core opening inside the valve body. It can be used in water heaters, underfloor heating systems, and other piping systems.

[0003] In existing technologies, valve cores are usually circular plate-shaped structures that control the opening and closing of water flow channels within the valve body. This results in high pressure loss and easy leakage from one side. Over time, scale accumulates on the circular plate-shaped valve core, easily causing blockages. The valve core is also difficult to clean, increasing costs.

[0004] Chinese invention patent application CN112797223A, filed on May 14, 2021, discloses a temperature control valve, including a valve body. The valve body has an upper valve hole at its upper end and a lower valve hole coaxial with the upper valve hole at its lower end. The valve body has symmetrically arranged inlet and outlet ports on its left and right sides. The valve body has an inlet valve assembly for controlling the opening and closing of the inlet port and an outlet valve assembly for controlling the opening and closing of the outlet port. A temperature control valve core assembly is inserted into the upper valve hole to control the connection or disconnection of the inlet and outlet ports. A valve lock assembly is fixedly installed in the lower valve hole. When the valve lock assembly locks the temperature control valve core assembly, the inlet valve assembly opens the inlet port and the outlet valve assembly opens the outlet port. When the valve lock assembly unlocks the temperature control valve core assembly, the inlet valve assembly closes the inlet port and the outlet valve assembly closes the outlet port. It is easy to clean and maintain, but it still requires disassembly, which reduces efficiency. At the same time, the valve core structure has a large pressure loss and a large energy loss. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of the prior art by providing a multi-channel temperature control valve. The present invention uses a driving device to gradually move the push block towards the connecting port, with the lower part of the arc teeth gradually entering the connecting port. Water flowing through the connecting port exits through the channel between two arc teeth. Multiple channels exist between adjacent arc teeth, forming a multi-channel structure, thereby reducing pressure loss, minimizing side leakage, and improving efficiency.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a temperature control valve, including a valve body, a valve core, a temperature control part and a driving device, wherein the valve body is provided with an inlet channel and an outlet channel separated by a partition, and the partition is provided with a connecting port; the valve core includes a push block disposed above the connecting port, the lower part of the push block is provided with multiple arc teeth, and the output end of the driving device is connected to the push block.

[0007] Preferably, the driving device includes a mounting base shell disposed on the valve body, a drive motor and a rotating rod disposed inside the mounting base shell, and a sleeve disposed on the push block; one end of the rotating rod is connected to the output end of the drive motor, and the other end is connected to the sleeve by a thread; a limiting groove is also disposed inside the mounting base shell, and a limiting block that cooperates with the limiting groove is disposed on the sleeve.

[0008] Preferably, the output end of the drive motor is provided with a slot, and one end of the rotating rod is provided with a locking block, which is located in the slot.

[0009] Preferably, the push block is provided with a descaling mechanism, and the push block has a through hole in the middle; the descaling mechanism includes a scraper, a pressure rod and a compression spring; the scraper is located inside the arc tooth, the lower end of the pressure rod passes through the through hole and is connected to the scraper, and the upper end is provided with a baffle; the compression spring is sleeved on the pressure rod, the upper side of the compression spring abuts against the baffle, and the lower side abuts against the push block.

[0010] Preferably, the scraper includes a scraper and a scraper frame, the scraper frame is connected to the pressure rod, the scraper frame consists of multiple spokes surrounding the pressure rod, the scraper is annular and fits around the scraper frame; the scraper is close to the inner edge of multiple arc teeth at the lower part of the push block.

[0011] Preferably, the sleeve sidewall is provided with two vertical openings facing each other; the descaling mechanism also includes a horizontal bar passing through the two vertical openings, and the two ends of the horizontal bar are provided with a pressure mechanism.

[0012] Preferably, the pressurizing mechanism includes a pressurizing rod and an adjusting rod, and the valve body is provided with an adjusting hole; the upper part of the pressurizing rod is provided with a vertical sliding hole, and the lower end face of the pressurizing rod is provided with an inclined channel that surrounds the center of the end face, and one end of the crossbar abuts against the inclined channel; the adjusting rod passes through the adjusting hole and is rotatably connected to the valve body, and the lower end of the adjusting rod is slidably connected in the vertical sliding hole; the adjusting rod has a hollow cavity inside, and the upper and lower ends of the side wall of the adjusting rod are respectively provided with an upper opening and a lower opening, the lower opening is provided with a pressing block, the upper opening is provided with a threaded sleeve, the threaded sleeve is provided with a screw, and the hollow cavity is provided with a connecting rod, the upper end of the connecting rod is rotatably connected to the screw, and the lower end is connected to the pressing block.

[0013] Preferably, the upper end of the adjusting rod is provided with a gear; the valve body is provided with a collar, and the inner side of the collar is provided with a ring of teeth that mesh with the gear.

[0014] Preferably, the outer wall of the arc tooth is flush with the inner wall of the connecting opening.

[0015] Preferably, the outer edge of the push block is provided with an annular groove, and a sealing ring is provided inside the annular groove.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0017] (1) The push block is gradually moved towards the connection port by the driving device, and the lower part of the arc tooth gradually enters the connection port. The water flowing through the connection port flows out from the channel between the two arc teeth. There are multiple channels between the two adjacent arc teeth, forming a multi-channel structure, which reduces pressure loss, reduces side leakage, and greatly improves the performance of this temperature control valve.

[0018] (2) The rotating rod is driven by the drive motor to rotate. Under the limit of the limit groove and the limit block, the sleeve moves up and down through the thread, which drives the push block to move up and down, and controls the opening and closing of the flow channel.

[0019] (3) The size of the flow channel opening can be controlled more precisely through threaded connection, the flow rate ratio can be controlled more accurately, and the temperature control is more accurate.

[0020] (4) By engaging the slot at the output end of the drive motor with the block on the rotating rod, the rotating rod can be disassembled and replaced from the mounting base, reducing the number of maintenance times and costs.

[0021] (5) Press down the pressure rod to move the scraper down and scrape the dirt on the inner side of the lower arc teeth of the push block clean, so as to avoid the blockage of the channel between the two adjacent arc teeth due to the accumulation of dirt on the inner side, ensuring smooth water flow and improving the performance; it is no longer necessary to frequently disassemble and clean the inner side of the valve core, reducing maintenance costs.

[0022] (6) The scraper frame is designed in the form of spokes, which provides support while reducing the obstruction to the water flow and ensuring the passage of the water.

[0023] (7) The scraper is close to the inner edge of the multiple arc teeth at the bottom of the push block, which is more conducive to cleaning the inner wall of the arc teeth and reducing the accumulation of dirt.

[0024] (8) Pressure is applied to both ends of the crossbar by the pressure mechanism. The crossbar moves downward along the vertical opening, so that the pressure bar overcomes the elastic force of the compression spring. The scraper moves down and scrapes the dirt on the inner side of the lower arc tooth of the push block clean.

[0025] (9) Tighten the screw to move it out of the hollow cavity, and drive the extrusion block to press against the inner wall of the vertical sliding hole through the connecting rod; rotate the adjusting rod, and the pressure rod will rotate, and the height of the inclined rail on the horizontal bar will increase, pushing the horizontal bar to move downward to achieve the pressure effect.

[0026] (10) Loosen the screw to move it into the hollow cavity, and drive the extrusion block away from the inner wall of the vertical sliding hole through the connecting rod; the pressure rod can move axially relative to the adjusting rod through the vertical sliding hole. When it is necessary to move the arc tooth to adjust the size of the flow channel, the pressure rod can move down with the crossbar, and the inclined channel is always attached to one end of the crossbar. When it is necessary to press the crossbar again, tighten the screw and repeat the above actions. The adjusting rod transmits torque to the pressure rod, ensuring that no matter what position the crossbar is in, rotating the adjusting rod can apply pressure to the crossbar, preventing blockage. It has strong applicability, simple structure, and is more economical.

[0027] (11) In places where manual operation is inconvenient, this device can remove valve core dirt through automated control. The built-in control program can replace manual descaling, improve automation and applicability.

[0028] (12) A gear is provided at the upper end of the adjusting rod; a collar is provided on the valve body, and a ring of teeth that meshes with the gear is provided on the inner side of the collar. Rotating the collar will rotate the gear of the adjusting rod on both sides of the pressurizing mechanism, thereby driving the pressurizing rod to rotate and control the crossbar to press down. It is convenient and durable to use.

[0029] (13) The outer wall of the arc tooth is flush with the inner wall of the connecting port. The dirt on the outer wall of the arc tooth is scraped off through the inner wall of the connecting port, thus removing scale, reducing the blockage of the temperature control valve, and reducing cleaning and replacement costs.

[0030] (14) The outer edge of the push block is provided with an annular groove, and a sealing ring is provided in the annular groove. When the push block contacts the partition, the sealing ring presses on the partition around the connection port to achieve a sealing effect. Attached Figure Description

[0031] Figure 1 This is a side sectional view of the present invention;

[0032] Figure 2 for Figure 1 A cross-sectional view of the valve core.

[0033] Figure 3 A three-dimensional schematic diagram of the valve core and descaling mechanism;

[0034] Figure 4 for Figure 1 Enlarged view of the transfer pole;

[0035] Figure 5 for Figure 1 Cross-sectional view at the pressurization mechanism;

[0036] Figure 6 This is a cross-sectional view of the adjusting rod.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1-Valve body, 11-Inlet channel, 12-Outlet channel, 13-Adjusting hole;

[0039] 2-Valve core, 21-Push block, 211-Through hole, 22-Arch tooth, 23-Annular groove, 24-Sleeve, 25-Vertical opening;

[0040] 3-Temperature control unit;

[0041] 4-Drive device, 41-Mounting base, 411-Limiting groove, 42-Drive motor, 43-Rotating rod, 431-Limiting block, 44-Card slot, 45-Card block;

[0042] 5-Partition, 51-Connecting port;

[0043] 6-Sealing ring;

[0044] 7-Descaling mechanism, 71-Scraper, 711-Scraper, 712-Scraper frame, 72-Pressure rod, 73-Compression spring, 74-Baffle, 75-Crossbar;

[0045] 8-Pressure mechanism, 81-Pressure rod, 811-Vertical sliding hole, 82-Inclined track, 83-Adjusting rod, 831-Upper opening, 832-Lower opening, 833-Extrusion block, 834-Threaded sleeve, 835-Screw, 836-Connecting rod, 837-Hollow cavity, 84-Gear, 85-Collar. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments.

[0047] Example

[0048] The following is in conjunction with the appendix Figures 1-6 To further illustrate the present invention, a temperature control valve, such as... Figure 1 As shown, the device includes a valve body 1, a valve core 2, a temperature control unit 3, and a drive device 4. The valve body 1 has an inlet channel 11 and an outlet channel 12 separated by a partition 5. The partition 5 has a connecting port 51. Water flows through the inlet channel 11, the partition 5 with the connecting port 51, and then out through the outlet channel 12. When the desired temperature is set, the temperature control unit 3 controls the size of the opening of the valve core 2 according to the monitored temperature, thereby controlling the amount of hot water and adjusting it to the desired temperature.

[0049] like Figure 1 , 2 As shown in Figure 3, the valve core 2 includes a push block 21 positioned above the connecting port 51. The lower part of the push block 21 has multiple arc teeth 22. The output end of the drive device 4 is connected to the push block 21. The drive device 4 causes the push block 21 to gradually move towards the connecting port 51, and the lower part of the arc teeth 22 gradually enters the connecting port 51. Water flowing through the connecting port 51 flows out through the channel between two arc teeth 22. Multiple channels exist between adjacent arc teeth 22, forming a multi-channel structure, reducing pressure loss and side leakage, and greatly improving the performance of this temperature control valve.

[0050] like Figure 1 and 4As shown, the drive device 4 includes a mounting base 41 mounted on the valve body 1. The mounting base 41 contains a drive motor 42 and a rotating rod 43. The push block 21 is provided with a sleeve 24. One end of the rotating rod 43 is connected to the output end of the drive motor 42, and the other end is connected to the sleeve 24 by a thread. The mounting base 41 also contains a limiting groove 411, and the sleeve 24 is provided with a limiting block 431 that cooperates with the limiting groove 411.

[0051] Driven by the drive motor 42, the rotating rod 43 rotates. Under the limit of the limiting groove 411 and the limiting block 431, the sleeve 24 moves up and down through the thread, driving the push block 21 to move up and down, controlling the opening and closing of the flow channel. By changing the thread pitch on the rotating rod 43 and the sleeve 24, the stroke of the push block 21 will be different for the same number of rotations of the rotating rod 43. If the thread pitch is smaller, the stroke of the push block 21 will be shorter. The threaded connection allows for more precise control of the flow channel opening size and the flow rate ratio, resulting in more accurate temperature control.

[0052] like Figure 4 As shown, the output end of the drive motor 42 is provided with a slot 44, and one end of the rotating rod 43 is provided with a block 45. The block 45 is located in the slot 44, and the rotating rod 43 can be disassembled and replaced from the mounting base 41, reducing the number of maintenance times and costs.

[0053] like Figure 1 , 2 As shown in Figure 3, the push block 21 is provided with a descaling mechanism 7, and the push block 21 has a through hole 211 in the middle. The descaling mechanism 7 includes a scraper 71, a pressure rod 72 and a compression spring 73. The scraper 71 is located inside the arc tooth 22. The lower end of the pressure rod 72 passes through the through hole 211 and is connected to the scraper 71. The upper end is provided with a baffle 74. The compression spring 73 is sleeved on the pressure rod 72. The upper side of the compression spring 73 abuts against the baffle 74 and the lower side abuts against the push block 21.

[0054] Pressing down the lever 72 overcomes the elastic force of the compression spring 73, causing the scraper 71 to move downward and scrape the dirt on the inside of the arc teeth 22 clean. This prevents the accumulation of dirt on the inside from clogging the channels between adjacent arc teeth 22, ensuring smooth water flow and improving the performance. It also eliminates the need for frequent disassembly to clean the inside of the valve core 2, reducing maintenance costs.

[0055] like Figure 2 and 3 As shown, the scraper 71 includes a scraper 711 and a scraper frame 712. The scraper frame 712 is connected to the pressure rod 72. The scraper frame 712 consists of multiple spokes surrounding the pressure rod 72. The scraper 711 is annular and fits around the scraper frame 712. The scraper frame 712 is designed in the form of spokes, which provides support while reducing obstruction to water flow and ensuring water flow. The scraper 711 is close to the inner edge of multiple arc teeth 22 at the lower part of the push block 21, which is more conducive to cleaning the inner wall of the arc teeth 22 and reducing dirt accumulation.

[0056] like Figure 2 and 3 As shown, the sleeve 24 has two vertical openings 25 facing each other on its side wall. The vertical length of the vertical openings 25 is not less than the length of the arc teeth 22. The descaling mechanism 7 also includes a horizontal bar 75 passing through the two vertical openings 25. The horizontal bar 75 is also provided with a pressure mechanism 8 at both ends. By applying pressure to both ends of the horizontal bar 75 through the pressure mechanism 8, the horizontal bar 75 moves downward along the vertical openings 25, so that the pressure rod 72 overcomes the elastic force of the compression spring 73, and the scraper 71 moves down to scrape the dirt on the inner side of the lower arc teeth 22 of the push block 21.

[0057] like Figure 1 , 5 As shown in Figure 6, the pressurizing mechanism 8 includes a pressurizing rod 81 and an adjusting rod 83. The valve body 1 is provided with an adjusting hole 13. The upper part of the pressurizing rod 81 is provided with a vertical sliding hole 811, and the lower end face of the pressurizing rod 81 is provided with an inclined channel 82 that surrounds the center of the end face. One end of the crossbar 75 abuts against the inclined channel 82. The adjusting rod 83 passes through the adjusting hole 13 and is rotatably connected to the valve body 1. The lower end of the adjusting rod 83 is slidably connected in the vertical sliding hole 811. The adjusting rod 83 is provided with a hollow cavity 837. The upper and lower ends of the side wall of the adjusting rod 83 are respectively provided with an upper opening 831 and a lower opening 832. The lower opening 832 is provided with a pressing block 833. The upper opening 831 is provided with a threaded sleeve 834. The threaded sleeve 834 is provided with a screw 835. The hollow cavity 837 is provided with a connecting rod 836. The upper end of the connecting rod 836 is rotatably connected to the screw 835, and the lower end is connected to the pressing block 833.

[0058] Tighten the screw 835 to move it out of the hollow cavity 837, and drive the extrusion block 833 to press against the inner wall of the vertical sliding hole 811 through the connecting rod 836; rotate the adjusting rod 83, which will rotate the pressure rod 81, and the height of the inclined rail 82 on the horizontal bar 75 will increase accordingly, pushing the horizontal bar 75 to move downward to achieve the pressure effect.

[0059] At the same time, the screw 835 is loosened and moved into the hollow cavity 837, and the extrusion block 833 is driven away from the inner wall of the vertical sliding hole 811 through the connecting rod 836; the pressure rod 81 can move axially relative to the adjusting rod 83 through the vertical sliding hole 811. When it is necessary to move the arc tooth 22 to adjust the size of the flow channel, the pressure rod 81 can move down with the horizontal bar 75, and the inclined channel 82 is always attached to one end of the horizontal bar 75.

[0060] When it is necessary to pressurize the crossbar 75 again, tighten the screw 835 and repeat the above action. The adjusting rod 83 transmits torque to the pressure rod 81, ensuring that no matter what position the crossbar 75 is in, the adjusting rod 83 can be rotated to apply pressure to the crossbar 75, preventing blockage. It has strong applicability, simple structure and is more economical.

[0061] Furthermore, in locations where manual operation is inconvenient, this device can automatically remove dirt from the valve core 2. Specifically: first, move the push block 21 of the valve core 2 to the bottom position, tighten the screw 835 and keep it tightened, fixing the pressure rod 81, thereby pressing down the crossbar 75 and ensuring that the scraper 71 remains stationary, i.e., fixing the scraper 711 in place; at this time, the crossbar 75 is pushed to the top of the vertical opening 25 under the action of the compression spring 73, while the push block 21 is at the bottom. The push block 21 can be driven by the drive device 4. The pusher moves upward under control so that the flow channel between the arc teeth 22 reaches the appropriate position. Since the two ends of the crossbar 75 are pressed by the pressure rod 81, it cannot move with the pusher block 21. The compression spring 73 is compressed by the pusher block 21. The crossbar 75 does not move, and the scraper 711 is fixed. If the pusher block 21 is controlled to move up and down in a cyclical manner by the drive device 4, the dirt on the arc teeth 22 can be scraped off by the scraper 711. After repeating this several times, the pusher block 21 is moved to the appropriate position. The built-in control program can replace manual descaling to achieve timed descaling, improve automation, and enhance applicability.

[0062] like Figure 5 As shown, the upper end of the adjusting rod 83 is provided with a gear 84; the valve body 1 is provided with a collar 85, and the inner side of the collar 85 is provided with a ring of teeth that mesh with the gear 84. Rotating the collar 85 can rotate the gear 84 of the adjusting rod 83 on both sides of the pressurizing mechanism 8, thereby driving the pressurizing rod 81 to rotate and control the crossbar 75 to press down. It is convenient and durable to use.

[0063] like Figure 1 As shown, the outer wall of the arc tooth 22 is flush with the inner wall of the connecting port 51. The dirt on the outer wall of the arc tooth 22 is scraped off through the inner wall of the connecting port 51, thus removing scale, reducing the clogging of the thermostatic valve, and lowering the cleaning and replacement costs.

[0064] like Figure 2 and 3 As shown, the push block 21 has an annular groove 23 on its outer edge, and a sealing ring 6 is provided inside the annular groove 23. When the push block 21 contacts the partition 5, the sealing ring 6 presses against the partition 5 on the outer periphery of the connecting port 51, thus achieving a sealing effect.

[0065] In the description of this invention, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to describe the invention and not to require the invention to be constructed or operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" in this invention should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms based on the specific circumstances.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A temperature control valve, comprising a valve body (1), a valve core (2), a temperature control unit (3), and a drive device (4), characterized in that, The valve body (1) is provided with an inlet channel (11) and an outlet channel (12) separated by a partition (5), and the partition (5) is provided with a connecting port (51); The valve core (2) includes a push block (21) disposed above the communication port (51), and the lower part of the push block (21) is provided with multiple arc teeth (22). The output end of the drive device (4) is connected to the push block (21). The push block (21) is provided with a descaling mechanism (7), and the push block (21) is provided with a through hole (211) in the middle. The descaling mechanism (7) includes a scraper (71), a pressure rod (72), and a compression spring (73); the scraper (71) is located inside the arc tooth (22), the lower end of the pressure rod (72) passes through the through hole (211) and is connected to the scraper (71), and the upper end is provided with a baffle (74); the compression spring (73) is sleeved on the pressure rod (72), the upper side of the compression spring (73) abuts against the baffle (74), and the lower side abuts against the push block (21); The scraper (71) includes a scraper (711) and a scraper frame (712). The scraper frame (712) is connected to the pressure rod (72). The scraper (711) is close to the inner edge of multiple arc teeth (22) at the lower part of the push block (21). Two vertical openings (25) are provided opposite to each other on the side wall of the sleeve (24). The descaling mechanism (7) also includes a horizontal bar (75) passing through two vertical openings (25), and a pressure mechanism (8) is provided at both ends of the horizontal bar (75); The pressurizing mechanism (8) includes a pressurizing rod (81) and an adjusting rod (83), and the valve body (1) is provided with an adjusting hole (13); The upper part of the pressure rod (81) is provided with a vertical sliding hole (811), and the lower end face of the pressure rod (81) is provided with a ramp (82) that surrounds the center of the end face. One end of the crossbar (75) abuts against the ramp (82). The adjusting rod (83) passes through the adjusting hole (13) and is rotatably connected to the valve body (1). The lower end of the adjusting rod (83) is slidably connected in the vertical sliding hole (811). The adjusting rod (83) has a hollow cavity (837) inside. The upper and lower ends of the side wall of the adjusting rod (83) are respectively provided with an upper opening (831) and a lower opening (832). The lower opening (832) is provided with an extrusion block (833), and the upper opening (831) is provided with a threaded sleeve (834). The threaded sleeve (834) is provided with a screw (835). The hollow cavity (837) is provided with a connecting rod (836). The upper end of the connecting rod (836) is rotatably connected to the screw (835), and the lower end is connected to the extrusion block (833). The outer wall of the arc tooth (22) is flush with the inner wall of the connecting port (51), and the dirt on the outer wall of the arc tooth (22) is scraped off through the inner wall of the connecting port (51).

2. A temperature control valve according to claim 1, characterized in that, The drive device (4) includes a mounting base (41) disposed on the valve body (1), and a drive motor (42) and a rotating rod (43) are disposed inside the mounting base (41). A sleeve (24) is disposed on the push block (21). One end of the rotating rod (43) is connected to the output end of the drive motor (42), and the other end is connected to the sleeve (24) by a thread. The mounting base (41) is also provided with a limiting groove (411), and the sleeve (24) is provided with a limiting block (431) that cooperates with the limiting groove (411).

3. A temperature control valve according to claim 2, characterized in that, The output end of the drive motor (42) is provided with a slot (44), and one end of the rotating rod (43) is provided with a block (45), which is located in the slot (44).

4. A temperature control valve according to claim 1, characterized in that, The scraper frame (712) consists of multiple spokes surrounding the pressure bar (72), and the scraper (711) is annular and fitted over the scraper frame (712).

5. A temperature control valve according to claim 1, characterized in that, The upper end of the adjusting rod (83) is provided with a gear (84); The valve body (1) is provided with a collar (85), and the inner side of the collar (85) is provided with a ring of teeth that mesh with the gear (84).

6. A temperature control valve according to claim 1, characterized in that, The outer edge of the push block (21) is provided with an annular groove (23), and a sealing ring (6) is provided in the annular groove (23).

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