Reversing electromagnetic valve

Abstract

The utility model belongs to the field of electromagnetic valves, and particularly relates to a reversing electromagnetic valve, which comprises a shell, a valve cavity, an inlet pipe and two outlet pipes. The turntable sealing assembly comprises a turntable rotating shaft, a turntable main body and a sealing piece, and the turntable rotating shaft is provided with a turntable driving part; the electromagnetic driving system comprises a driving coil and a movable iron core, and one end of the movable iron core extends out of the driving coil to form an electromagnetic driving part; one end of the connecting rod is hinged to the electromagnetic driving part of the movable iron core, and the other end of the connecting rod is connected with the turntable driving part to form circumferential linkage fit. The movable iron core is hinged to the connecting rod, the connecting rod is connected with the rotary disc sealing assembly to form circumferential linkage fit, the connecting rod can be instantly driven to rotate after electromagnetic driving is achieved, then the rotary disc sealing assembly is driven to rotate, switching plugging of the two outlet pipes is achieved, fluid reversing is achieved, the response speed is high, sealing is reliable, and the structure is simple.

Description

Technical Field

[0001] The utility model belongs to the field of solenoid valves, and particularly relates to a reversing solenoid valve. Background Art

[0002] The reversing solenoid valve is a supporting part used to change the flow direction of the fluid outlet on household electrical appliances, and is particularly widely used in washing machines, dryers or water purifiers. Some reversing valves directly drive the solenoid valve spool to perform internal commutation, similar to the structure of an ordinary direct-acting solenoid valve, which has the problem of sealing leakage. There are also similar ones that drive the rotation of the spool through a stepping motor to achieve internal commutation. However, the stepping motor requires a certain response time, and there will be a certain angular deviation in the gear self-locking, which will cause problems such as sealing leakage over a long time. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies existing in the prior art, and to provide a reversing solenoid valve.

[0004] The technical solution adopted by the utility model is as follows: A reversing solenoid valve, comprising:

[0005] A housing, which is provided with a valve cavity inside, and is provided with an inlet pipe and two outlet pipes communicating with the valve cavity on it;

[0006] A rotary disk sealing assembly, including a rotary disk rotating shaft, a rotary disk main body linked and cooperated with the rotary disk rotating shaft, and seals fixed on both side walls of the rotary disk main body. The rotary disk main body is arranged in the valve cavity, and the rotary disk main body can rotate around the central axis of the rotary disk rotating shaft and between the two outlet pipes. The seals on both sides of it can be respectively matched with the inner wall of the housing to block the outlet pipes. The rotary disk rotating shaft passes through the housing to form a rotary disk driving part;

[0007] An electromagnetic driving system, including a driving coil and a moving iron core. The moving iron core is located inside the driving coil and can move linearly under the action of the electromagnetic force of the driving coil. One end of the moving iron core extends out of the driving coil to form an electromagnetic driving part;

[0008] A connecting rod, one end of which is hinged to the electromagnetic driving part of the moving iron core and the other end is connected to the rotary disk driving part to form a circumferential linkage cooperation.

[0009] The electromagnetic driving part of the moving iron core has two relatively arranged planes and a circular first hinge hole vertically penetrating between the two planes;

[0010] The end of the connecting rod close to the electromagnetic driving system is provided with two connecting plates arranged at a certain interval, and the interval between the two connecting plates is adapted to the thickness of the electromagnetic driving part. The connecting plates are provided with long strip-shaped second hinge holes vertically penetrating;

[0011] Two connecting plates are located on both sides of the electromagnetic driving part, and a hinge pin shaft passes through the first hinge hole and the second hinge hole at the same time.

[0012] The hinge pin shaft sequentially has a head, a middle cylinder and a tail along the axial direction;

[0013] The head and the tail are respectively located outside the two connecting plates, and the sizes of both are larger than the second hinge hole, so that the two can respectively form a contact limit fit with the connecting plate.

[0014] At least two first elastic claw plates are arranged on the tail at intervals. One side of the first elastic claw plate close to the middle cylinder forms a first contact plane, and the side far from the middle cylinder forms a first guiding surface. The first guiding surface interacts with the second hinge hole to make the first elastic claw plate elastically deform inwards to cross the second hinge hole.

[0015] The turntable driving part is a columnar structure with a regular polygon cross-section. A linkage sleeve is arranged at the end of the connecting rod close to the turntable rotating shaft. The inner circumference of the linkage sleeve is adapted to the outer circumference of the turntable driving part. The linkage sleeve is sleeved outside the turntable driving part. A positioning groove is axially arranged on the turntable driving part, and a positioning rib is correspondingly arranged in the linkage sleeve.

[0016] An extension rod is arranged at the outer end of the turntable driving part of the turntable rotating shaft, and a limit convex block is formed at the outer end of the extension rod. One side of the limit convex block close to the extension rod forms a second contact plane, and the side far from the extension rod forms a second guiding surface;

[0017] At least two second elastic claw plates are connected to one end of the linkage sleeve at intervals. The second elastic claw plates are inclined so that the distance between the ends of the second elastic claw plates far from the linkage sleeve is smaller than the size of the limit convex block. The second contact plane and the end face of the second elastic claw plate can form a contact limit fit. The second guiding surface and the inner wall of the second elastic claw plate cooperate to make the second elastic claw plate elastically deform outwards so that the limit convex block can cross the second elastic claw plate.

[0018] Two annular grooves are arranged on the outer circumference of the turntable rotating shaft, and an O-ring is embedded in the annular groove. The O-ring is in sealing cooperation with the inner wall of the shell.

[0019] The shell includes a valve body and a valve cover. The valve cavity, the inlet pipe and the outlet pipe are all arranged on the valve body. The valve cover is connected to the valve body to close the valve cavity;

[0020] A through hole is arranged on the valve cover, and a shaft sleeve extends upwards at the through hole. The O-ring is in sealing cooperation with the inner wall of the shaft sleeve;

[0021] The electromagnetic drive system is connected to the outer wall of the valve cover.

[0022] It also includes a protective cover, which is detachably connected to the valve cover and covers the transmission structure formed by the moving iron core, the connecting rod, and the turntable rotating shaft;

[0023] A wire winding part is provided at the outer end of the protective cover.

[0024] The turntable rotating shaft is integrally formed with the turntable body;

[0025] Installation grooves are respectively formed on both side walls of the turntable body, and a protruding connecting column is provided at the center of the installation groove;

[0026] The seal includes a disc-shaped main body and a sealing action ring located on the outer periphery of the disc-shaped main body. A connecting hole for the connecting column to pass through is opened at the center of the disc-shaped main body;

[0027] It also includes a pressing plate, which is arranged in contact with the outer surface of the disc-shaped main body and is fixedly connected to the outer end of the connecting column;

[0028] The cross-section of the sealing action ring is Y-shaped, and it has a first annular action surface for abutting and cooperating with the bottom surface of the installation groove and a second annular action surface for cooperating with the inner wall of the housing to block the outlet pipe;

[0029] The second annular action surface forms an angle β with the center line of the turntable body.

[0030] The beneficial effects of the present utility model are as follows: Through the hinge connection between the moving iron core and the connecting rod and the connection between the connecting rod and the turntable sealing assembly to form a circumferential linkage cooperation, after electromagnetic drive, the connecting rod can be instantaneously driven to rotate, and then the turntable sealing assembly is driven to rotate to realize the switching and blocking of the two outlet pipes, realize fluid commutation, with fast response speed, reliable sealing, and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present utility model.

[0032] Figure 1 It is a three-dimensional view of an embodiment of the present utility model with a protective cover;

[0033] Figure 2 It is a schematic diagram of an embodiment of the present utility model with a part of the structure removed without a protective cover;

[0034] Figure 3 It is a cross-sectional view of the transmission structure at an angle in an embodiment of the present utility model;

[0035] Figure 4 It is a cross-sectional view of the transmission structure from another angle in an embodiment of the present utility model;

[0036] Figure 5 It is the matching structure of the turntable sealing assembly and the valve body in an embodiment of the present utility model;

[0037] Figure 6 It is a schematic structural diagram of the moving iron core in an embodiment of the present utility model;

[0038] Figure 7 It is a schematic structural diagram of the connecting rod in an embodiment of the present utility model;

[0039] Figure 8 It is a schematic structural diagram of the hinge pin shaft in an embodiment of the present utility model;

[0040] Figure 9 It is an exploded view of the turntable sealing assembly in an embodiment of the present utility model;

[0041] Figure 10 It is Figure 7 the enlarged schematic diagram of part A in

[0042] Figure 11 It is Figure 9 the enlarged schematic diagram of part A in

[0043] Figure 12 It is Figure 4 the enlarged schematic diagram of part A in

[0044] Figure 13 It is an exploded view of the housing in an embodiment of the present utility model;

[0045] Figure 14 It is a schematic structural diagram of the protective cover in an embodiment of the present utility model;

[0046] Figure 15 It is a cross-sectional view of the turntable sealing assembly;

[0047] In the figure,

[0048] housing - 100, inlet pipe - 110, outlet pipe - 120, valve body - 130, valve cover - 140, bushing - 141, clamping arm - 142, connection hole - 143;

[0049] Rotary table sealing assembly - 200, rotary table rotating shaft - 210, rotary table driving part - 211, positioning groove - 212, extension rod - 213, limit bump - 214, second guiding surface - 216, annular groove - 217, O - ring seal - 218, rotary table main body - 220, installation groove - 221, connecting column - 222, seal - 230, disc - shaped main body - 231, sealing ring - 232, pressing plate - 240;

[0050] Electromagnetic drive system - 300, moving iron core - 310, electromagnetic drive part - 311, first hinge hole - 312, drive coil - 320, return spring - 330;

[0051] Connecting rod - 400, connecting plate - 410, second hinge hole - 411, linkage sleeve - 420, positioning rib - 421, second elastic claw plate - 430;

[0052] Hinge pin - 500, head - 510, middle cylinder - 520, tail - 530, first elastic claw plate - 531, first guiding surface - 533;

[0053] Protective cover - 600, wire - winding part - 610, connecting pin - 620. Detailed implementation mode

[0054] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0055] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities or parameters with the same name but different identities. It can be seen that "first" and "second" are only for the convenience of expression and should not be construed as limitations on the embodiments of the present utility model. This will not be elaborated one by one in subsequent embodiments.

[0056] The terms of direction and position mentioned in the present utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only with reference to the direction or position of the accompanying drawings. Therefore, the terms of direction and position used are for explaining and understanding the present utility model, rather than limiting the protection scope of the present utility model.

[0057] A reversing solenoid valve, as Figures 1-5 shown, includes a housing 100, a rotary table sealing assembly 200, an electromagnetic drive system 300, and a connecting rod 400.

[0058] A valve cavity is provided inside the housing 100, and an inlet pipe 110 and two outlet pipes 120 communicating with the valve cavity are provided thereon;

[0059] The turntable sealing assembly 200 includes a turntable rotating shaft 210, a turntable main body 220 linked and cooperatively connected with the turntable rotating shaft 210, and sealing members 230 fixed on both side walls of the turntable main body 220. The turntable main body 220 is arranged in the valve cavity. The turntable main body 220 can rotate around the central axis of the turntable rotating shaft 210 and between two outlet pipes 120. The sealing members 230 on both sides thereof can respectively cooperate with the inner wall of the housing 100 to block the outlet pipes 120. The turntable rotating shaft 210 passes through the housing 100 to form a turntable driving part 211;

[0060] The electromagnetic driving system 300 includes a moving iron core 310, a driving coil 320, and a return spring 330. The moving iron core 310 is located inside the driving coil 320 and can move linearly under the action of the electromagnetic force of the driving coil 320. One end of the moving iron core 310 extends out of the driving coil 320 to form an electromagnetic driving part 311;

[0061] One end of the connecting rod 400 is hinged to the electromagnetic driving part 311 of the moving iron core 310, and the other end is connected to the turntable driving part 211 to form a circumferential linkage cooperation.

[0062] Figures 3-5 The state when the driving coil 320 is not powered on is shown. At this time, as Figure 5 shown, the turntable sealing assembly 200 blocks the right outlet pipe 120. The inlet pipe 110 is connected to the left outlet pipe 120, and the fluid flows out from the left outlet pipe 120. When the driving coil 320 is powered on, as Figure 3 shown, the moving iron core 310 moves linearly in the A direction, driving the connecting rod 400 to rotate counterclockwise, and then driving the turntable sealing assembly 200 shown in Figure 4 to rotate counterclockwise. Figure 5 As shown in , the turntable sealing assembly 200 will block the left outlet pipe 120, and the fluid will flow out from the right outlet pipe 120 to complete the commutation action. After the driving coil 320 is powered off, the moving iron core 310 moves in the reverse direction and resets under the action of the return spring 330. The electromagnetic driving mechanism can instantaneously drive the connecting rod to rotate to achieve commutation, with a faster response speed.

[0063] As Figure 6 shown, the electromagnetic driving part 311 of the moving iron core 310 has two relatively arranged planes and a circular first hinge hole 312 vertically penetrating between the two planes; As Figure 7As shown, at the end of the connecting rod 400 close to the electromagnetic drive system, there are two connecting plates 410 arranged at a certain interval, and the interval between the two connecting plates 410 is adapted to the thickness of the electromagnetic drive part 311. A long strip-shaped second hinge hole 411 is vertically penetrated on the connecting plate 410; the two connecting plates 410 are located on both sides of the electromagnetic drive part 311, and a hinge pin 500 passes through the first hinge hole 312 and the second hinge hole 411 at the same time. Further, as Figure 8 shown, the hinge pin 500 sequentially has a head 510, an intermediate cylinder 520 and a tail 530 along the axial direction; the head 510 and the tail 530 are respectively located outside the two connecting plates 410, and the sizes of both are larger than the second hinge hole 411, so that they can respectively form an abutting limit fit with the connecting plate 410. At least two first elastic claw plates 531 are arranged at intervals on the tail 530. One side of the first elastic claw plate 531 close to the intermediate cylinder 520 constitutes a first abutting plane, and the side far from the intermediate cylinder 520 constitutes a first guiding surface 533. The interaction between the first guiding surface 533 and the second hinge hole 411 can make the first elastic claw plate 531 elastically deform inward to cross the second hinge hole 411. During assembly, the electromagnetic drive part 311 of the moving iron core 310 is inserted between the two connecting plates 410, and the first hinge hole 312 and the second hinge hole 411 are made to correspond in position, and then the hinge pin 500 is directly inserted to make the first elastic claw plate 531 elastically deform and cross the connecting plate 410, the electromagnetic drive part 311, and the connecting plate 410 in sequence, and the assembly can be completed, and the assembly is convenient.

[0064] Further, as Figure 9 shown, the turntable drive part 211 is a columnar structure with a regular polygon cross-section. As Figure 7 shown, a linkage sleeve 420 is provided at the end of the connecting rod 400 close to the turntable rotating shaft 210. The inner circumference of the linkage sleeve 420 is adapted to the outer circumference of the turntable drive part 211, and the linkage sleeve 420 is sleeved outside the turntable drive part 211. As Figure 11 shown, a positioning groove 212 is axially opened on the turntable drive part 211. As Figure 10 shown, a positioning rib 421 is correspondingly provided inside the linkage sleeve 420. The positioning rib 421 and the positioning groove 212 cooperate to ensure that after the connecting rod 400 and the turntable rotating shaft 210 are fixedly connected and matched, a stable included angle α can be formed, rather than a variable included angle. See Figure 4 and Figure 12 . The advantage of such a design is to prevent the scrapping of parts caused by indiscriminate assembly, effectively increase the assembly stability, and effectively reduce the assembly cost.

[0065] As Figure 9As shown, an extension rod 213 is provided at the outer end of the turntable rotating shaft 210 outside the turntable driving part 211, and a limiting convex block 214 is formed at the outer end of the extension rod 213. One side of the limiting convex block 214 close to the extension rod 213 constitutes a second abutting plane, and the side far from the extension rod 213 constitutes a second guiding surface 216; As Figure 7 , Figure 10 As shown, at least two second elastic claw plates 430 are provided at one end of the linkage sleeve 420 and are spaced apart separately. The second elastic claw plates 430 are inclined so that the distance between the ends of the second elastic claw plates 430 far from the linkage sleeve 420 is smaller than the size of the limiting convex block 214. An abutting and limiting fit can be formed between the second abutting plane and the end face of the second elastic claw plate 430. The second guiding surface 216 is matched with the inner wall of the second elastic claw plate 430 to enable the second elastic claw plate 430 to elastically deform outward so that the limiting convex block 214 can cross the second elastic claw plate 430. During installation, direct installation can be carried out, and the assembly cost is low.

[0066] Two annular grooves 217 are provided on the outer periphery of the turntable rotating shaft 210, and an O-ring seal 218 is embedded in the annular grooves 217. The O-ring seal 218 is in sealing fit with the inner wall of the housing 100. Ensure the sealing performance.

[0067] As Figure 13 shown, the housing 100 includes a valve body 130 and a valve cover 140. The valve cavity, the inlet pipe 110, and the outlet pipe 120 are all arranged on the valve body 130. The valve cover 140 is connected to the valve body 130 to close the valve cavity; A through hole is provided on the valve cover 140, and a shaft sleeve 141 extends upward at the through hole. The O-ring seal 218 is in sealing fit with the inner wall of the shaft sleeve 141; The electromagnetic drive system is connected to the outer wall of the valve cover 140. The valve body 130 and the valve cover 140 are connected by snap connection. The valve cover 140 is provided with a snap connection arm 142 for snap-connecting and fixing the electromagnetic drive system.

[0068] It further includes a protective cover 600. The protective cover 600 is detachably connected to the valve cover 140 and covers the transmission structure formed by the moving iron core 310, the connecting rod 400, and the turntable rotating shaft 210; As Figure 14 shown, two connecting pins 620 are formed by protruding on the protective cover 600, and two connecting holes 143 are correspondingly provided on the valve cover 140. The protective cover 600 is detachably connected to the valve cover 140 through direct plug-in fit. The protective cover 600 plays a role in protecting the transmission structure outside the valve cover 140 and preventing the transmission structure outside the valve cover 140 from being blocked and interfered. A wire collecting part 610 is provided at the outer end of the protective cover 600. The wire collecting part 610 is a hook structure and is used for limiting and arranging the leads of the electromagnetic drive system 300.

[0069] As Figure 9 , Figure 15As shown, the turntable rotating shaft 210 and the turntable main body 220 are integrally formed; mounting grooves 221 are respectively formed on both side walls of the turntable main body 220, and a protruding connecting column 222 is provided at the center of the mounting groove 221; the seal 230 includes a disc-shaped main body 231 and a sealing action ring 232 located on the outer periphery of the disc-shaped main body 231, and a connecting hole for the connecting column 222 to pass through is formed at the center of the disc-shaped main body 231; a pressing plate 240 is further included, the pressing plate 240 is arranged in contact with the outer surface of the disc-shaped main body 231 and is fixedly connected to the outer end of the connecting column 222; the cross section of the sealing action ring 232 is Y-shaped and has a first annular action surface for abutting and cooperating with the bottom surface of the mounting groove 221 and a second annular action surface for cooperating with the inner wall of the housing 100 to block the outlet pipe 120; an included angle β is formed between the second annular action surface and the center line of the turntable main body 220. If the second annular action surface is parallel to the center line of the turntable main body 220, then during the process of closing one outlet pipe 120, as Figure 5 shown, the second annular action surface and the inner wall of the valve body will form an unbalanced fit, and it is possible that one end forms an abutting seal while the other end cannot form a seal, resulting in unreliable sealing. In this embodiment, an included angle β is formed between the second annular action surface and the center line of the turntable main body 220 to ensure that when forming a seal, the second annular action surface and the inner wall of the valve body form a balanced fit.

[0070] The foregoing disclosure is only a preferred embodiment of the present invention, and of course, it cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A reversing solenoid valve, characterized in that: include: A housing (100) having a valve cavity therein and having an inlet pipe (110) and two outlet pipes (120) connected to the valve cavity provided thereon; A turntable sealing assembly (200) comprises a turntable shaft (210), a turntable body (220) connected in linkage with the turntable shaft (210), and sealing members (230) fixed on the side walls of the turntable body (220), wherein the turntable body (220) is arranged in the valve cavity, the turntable body (220) can rotate around the central axis of the turntable shaft (210) and between the two outlet pipes (120), the sealing members (230) on both sides can respectively cooperate with the inner wall of the housing (100) to seal the outlet pipes (120), and the turntable shaft (210) passes through the housing (100) to form a turntable driving unit (211); An electromagnetic drive system (300) comprises a drive coil (320) and a moving iron core (310), wherein the moving iron core (310) is located inside the drive coil (320) and can move in a straight line under the action of the electromagnetic force of the drive coil (320), and one end of the moving iron core (310) extends out of the drive coil (320) to form an electromagnetic drive unit (311); The connecting rod (400) has one end hingedly connected to the electromagnetic driving part (311) of the moving iron core (310) and the other end connected to the rotating disk driving part (211) to form a circumferential linkage.

2. The reversing solenoid valve according to claim 1, characterized in that: The electromagnetic driving part (311) of the moving iron core (310) has two planes arranged opposite to each other and a circular first hinge hole (312) vertically penetrating between the two planes; The end of the connecting rod (400) close to the electromagnetic drive system is provided with two connecting plates (410) arranged at a certain distance, and the distance between the two connecting plates (410) is adapted to the thickness of the electromagnetic drive part (311), and the connecting plate (410) is provided with a second long hinge hole (411) vertically penetrating therethrough; The two connecting plates (410) are located on both sides of the electromagnetic drive part (311) and are provided with hinge pins (500) that pass through the first hinge hole (312) and the second hinge hole (411) at the same time.

3. The reversing solenoid valve according to claim 2, characterized in that: The hinge pin shaft (500) has a head portion (510), a middle cylinder (520) and a tail portion (530) in sequence along the axial direction; The head portion (510) and the tail portion (530) are respectively located outside the two connecting plates (410) and both are larger than the second hinge hole (411) so that both can form abutment and limit fit with the connecting plates (410).

4. The reversing solenoid valve according to claim 3, characterized in that: The tail portion (530) is provided with at least two first elastic claw plates (531) which are separately arranged at intervals. The side of the first elastic claw plate (531) close to the middle cylinder (520) forms a first abutment plane, and the side away from the middle cylinder (520) forms a first guiding action surface (533). The first guiding action surface (533) interacts with the second hinge hole (411) to enable the first elastic claw plate (531) to elastically deform inwardly so as to pass over the second hinge hole (411).

5. The reversing solenoid valve according to claim 1, characterized in that: The turntable drive part (211) is a columnar structure with a regular polygonal cross section. A linkage sleeve (420) is provided at the end of the connecting rod (400) close to the turntable shaft (210). The inner periphery of the linkage sleeve (420) is adapted to the shape of the outer periphery of the turntable drive part (211). The linkage sleeve (420) is sleeved outside the turntable drive part (211). The turntable drive part (211) is provided with a positioning groove (212) opened along the axial direction. A positioning convex rib (421) is correspondingly provided inside the linkage sleeve (420).

6. The reversing solenoid valve according to claim 5, characterized in that: The turntable shaft (210) is provided with an extension rod (213) at the outer end of the turntable driving part (211), and a limiting protrusion (214) is formed at the outer end of the extension rod (213), wherein the side of the limiting protrusion (214) close to the extension rod (213) forms a second abutment plane and the side away from the extension rod (213) forms a second guiding action surface (216); One end of the linkage sleeve (420) is connected to at least two second elastic claw plates (430) which are separately arranged at intervals. The second elastic claw plates (430) are arranged to be inclined so that the distance between one end of the second elastic claw plates (430) away from the linkage sleeve (420) is smaller than the size of the limiting protrusion (214). The second abutting plane and the end surface of the second elastic claw plate (430) can form an abutting limiting fit. The second guiding action surface (216) cooperates with the inner wall of the second elastic claw plate (430) to enable the second elastic claw plate (430) to elastically deform outwards so that the limiting protrusion (214) passes over the second elastic claw plate (430).

7. The reversing solenoid valve according to claim 1, characterized in that: Two annular grooves (217) are arranged on the outer circumference of the rotating disk shaft (210), an O-type sealing ring (218) is embedded in the annular groove (217), and the O-type sealing ring (218) is in sealing cooperation with the inner wall of the housing (100).

8. The reversing solenoid valve according to claim 7, characterized in that: The housing (100) comprises a valve body (130) and a valve cover (140); the valve cavity, the inlet pipe (110) and the outlet pipe (120) are all arranged on the valve body (130); the valve cover (140) is connected to the valve body (130) to close the valve cavity; The valve cover (140) is provided with a through hole and a shaft sleeve (141) is extended upward from the through hole, and the O-ring (218) is in sealing cooperation with the inner wall of the shaft sleeve (141); The electromagnetic drive system is connected to the outer wall of the valve cover (140).

9. The reversing solenoid valve according to claim 8, characterized in that: It also includes a protective cover (600), the protective cover (600) being detachably connected to the valve cover (140) and arranged outside the transmission structure formed by the moving iron core (310), the connecting rod (400) and the rotating shaft of the rotating disk (210); The outer end of the protective cover (600) is provided with a wire collection portion (610).

10. The reversing solenoid valve according to claim 1, characterized in that: The turntable shaft (210) and the turntable body (220) are integrally formed; The two side walls of the turntable body (220) are respectively formed with mounting grooves (221), and a protruding connecting column (222) is provided at the center of the mounting groove (221); The sealing member (230) comprises a disc-shaped body (231) and a sealing ring (232) located on the outer periphery of the disc-shaped body (231); a connection hole for the connection column (222) to pass through is provided at the center of the disc-shaped body (231); It also includes a pressing plate (240), wherein the pressing plate (240) is arranged in contact with the outer surface of the disc-shaped main body (231) and is fixedly connected to the outer end of the connecting column (222); The sealing action ring (232) has a Y-shaped cross section and comprises a first annular action surface for abutting against the bottom surface of the mounting groove (221) and a second annular action surface for cooperating with the inner wall of the housing (100) to seal the outlet pipe (120); The second annular action surface forms an angle β with the center line of the turntable body (220).

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