A solenoid valve

Abstract

The present invention relates to the field of electromagnetic valve technology, and discloses an electromagnetic valve, including an electromagnetic valve body, a filter unit, a lifting unit and a cleaning unit. When it is necessary to clean the hemispherical filter screen, the operator needs to close the electromagnetic valve body, control the electromagnetic valve core to move downward, and seal the through hole. When the electromagnetic valve core moves downward, the extrusion block on the side wall is squeezed by the electromagnetic valve core, and the extrusion block drives the plug rod to move to both sides, and the plug rod drives the synchronization rod at the end to slide to both sides, and the rocker arm position on the synchronization rod changes synchronously, and the rocker arm drives the storage box at the end to move vertically upward, and finally the storage box can be covered on the hemispherical filter screen, so that the impurities on the hemispherical filter screen cannot flow everywhere, but can only fall into the storage box, and then the cleaned impurities are temporarily stored, ensuring that the electromagnetic valve can work smoothly.

Description

Technical Field

[0001] The invention belongs to the technical field of solenoid valves, and in particular relates to a solenoid valve. Background Art

[0002] The refrigerant solenoid valve of the automobile air conditioner is a valve that switches the refrigerant flow direction between the cooling and heating functions. The utility model patent with the publication number CN206669079U discloses a refrigerant solenoid valve structure with a throttling function. The electromagnetic control part is fixed on the upper position of the valve body. The electromagnetic control part controls the valve port on the valve body through an electrical signal. A small-sized channel is opened next to the valve port position of the valve body. One end of the channel is connected to the refrigerant outlet, and the other end is connected to the refrigerant inlet. An outlet filter is arranged at the outlet of the refrigerant outlet. A net is arranged at the inlet of the refrigerant inlet, and a seal is arranged at the valve port; a small-sized hole and a filtering protection device are added to the valve body of the one-way direct-acting solenoid valve, and the hole directly connects the inlet channel and the outlet channel of the valve body, coexists with the valve port and is independent of each other; when the refrigerant solenoid valve is energized, the valve port is closed under the action of electromagnetic force, and the refrigerant flows through the hole to realize the throttling function; when the refrigerant solenoid valve is de-energized, the electromagnetic force disappears, the valve port is opened, the refrigerant is in a passage, and flows through the valve port to realize the circulation function.

[0003] However, during the use of the existing refrigerant solenoid valve, the filter position of the refrigerant solenoid valve needs to be cleaned in time, and the current cleaning method is generally to scrape it directly through a scraper, but the scraped impurities are still in the solenoid valve pipeline. As the years of use increase, the impurities will clog the filter and affect the normal use of the solenoid valve. In addition, the cleaning of the existing solenoid valve requires an external power supply to control the rotation of the internal scraper, which leads to higher energy consumption during the use of the solenoid valve, and the external power supply needs to be maintained in the later stage, which increases the cost.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A solenoid valve comprises a solenoid valve body, a filtering unit, a lifting unit and a cleaning unit, wherein a transmission pipeline is installed on the solenoid valve body, a bent valve seat is installed inside the transmission pipeline, a through hole is opened on the bent valve seat, and the through hole vertically corresponds to the solenoid valve core at the output end of the solenoid valve body.

[0007] The filter unit comprises a hemispherical filter screen, which is installed at the bottom of the bent valve seat, and the hemispherical filter screen corresponds to the through hole, and a synchronous shaft is rotatably installed on the hemispherical filter screen.

[0008] The lifting unit includes an extrusion block, which is inserted into the side wall of the through hole. A plug rod is installed on the back of the extrusion block, a guide slider is installed at the end of the plug rod, a synchronization rod is installed at the bottom of the guide slider, a rocker arm is installed at the end of the synchronization rod, the rocker arm is in an inclined state, a storage box is installed at the end of the rocker arm, the storage box is inserted into the bottom of the transmission pipe, and an annular scraper is rotatably installed inside the storage box, the annular scraper corresponds to the hemispherical filter, and a special-shaped rod is installed at the rotation center of the annular scraper, and the special-shaped rod corresponds to the special-shaped socket opened at the bottom of the synchronization shaft.

[0009] The cleaning unit includes a driving gear, which is placed inside the through hole. The driving gear and the synchronization shaft are connected to each other. A pair of guide racks are meshed on the side walls of the driving gear. A limit slider is installed on the guide rack. A pressure rod is installed on the top of the limit slider, and the pressure rod is adapted to the conical surface at the bottom of the solenoid valve core.

[0010] As a preferred embodiment of the present invention, connecting joints are installed on both sides of the transmission pipeline, internal threads are opened inside the connecting joints, the bent valve seat divides the chamber inside the transmission pipeline, and the connecting joints on both sides correspond to the divided chambers respectively.

[0011] As a preferred embodiment of the present invention, a discharge port is provided at the bottom of the transmission pipe, the discharge port vertically corresponds to the storage box, a sealing door is installed on the discharge port by bolts, and a sealing gasket is clamped between the sealing door and the discharge port.

[0012] As a preferred embodiment of the present invention, filter holes are provided on the hemispherical filter screen, one end face of the special-shaped socket is circular, and the other end face of the special-shaped socket is in the shape of a straight line, the special-shaped rod is in the shape of a straight line, and a cross bracket is installed at the bottom of the annular scraper, and the cross bracket is installed inside the storage box.

[0013] As a preferred embodiment of the present invention, the surface of the extrusion block is provided with a slope, the slope is located on the upper surface of the extrusion block, the inner wall of the through hole is provided with a storage groove, the extrusion block is inserted in the storage groove, and the thickness of the extrusion block is adapted to the depth of the storage groove.

[0014] As a preferred embodiment of the present invention, a baffle is installed on the side wall of the plug rod, and the baffle is slidably arranged in a slot, and the slot is opened on the inner wall of the bent valve seat, and an extrusion spring is sleeved on the surface of the plug rod inside the slot, one end of the extrusion spring is interconnected with the inside of the slot, and the other end of the extrusion spring is interconnected with the side wall of the baffle.

[0015] As a preferred embodiment of the present invention, a guide groove is opened inside the bent valve seat, a guide slider is slidably arranged inside the guide groove, a slide rod is installed horizontally through the guide groove, a slide seat is slidably arranged inside the slide rod, the slide seat is welded on the side wall of the guide slider, and the synchronization rod is slidably arranged inside the guide groove.

[0016] As a preferred embodiment of the present invention, a storage cavity is provided inside the storage box, a circular inlet is provided on the top of the storage box, and the circular inlet and the hemispherical filter are adapted to each other, a guide bucket is provided at the bottom of the storage cavity, and the guide bucket is conical, a mounting ear is installed on the side wall of the storage box, a positioning rod is slidably provided on the mounting ear, one end of the positioning rod is installed on the transmission pipeline, and a positioning plate is installed on the other end of the positioning rod, the diameter of the positioning plate is larger than the diameter of the positioning rod, and a tension spring is sleeved on the positioning rod, one end of the tension spring is clamped on the side wall of the mounting ear, and the other end of the tension spring is clamped on the transmission pipeline.

[0017] As a preferred embodiment of the present invention, a gear shaft is installed at the rotation center of the driving gear, the bottom of the gear shaft and the synchronization shaft are connected to each other, a protective cover is sleeved on the gear shaft, and the guide rack is slidably arranged inside the protective cover, a connecting plate is installed between the side wall of the guide rack and the limit slider, the limit slider is slidably arranged on the limit slide groove opened on the side wall of the protective cover, a side panel is installed on the side wall of the protective cover, a mounting block is installed at the end of the side panel, and the mounting block is attached to the side wall of the through hole, and a locking bolt is screwed and installed on the side panel.

[0018] As a preferred embodiment of the present invention, a reset cover is installed on the side wall of the side panel, a partition is slidably arranged inside the reset cover, a reset spring is clamped between one end of the partition and the inner wall of the reset cover, the compression direction of the reset spring is the same as the moving direction of the partition, a reset rod is installed on the other end of the partition, the reset rod movably passes through the reset cover, the end of the reset rod is connected to the side wall of the pressure rod, and a guide wheel is installed on the top of the pressure rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] A lifting unit is provided, wherein when the hemispherical filter needs to be cleaned, the operator needs to close the solenoid valve body and control the solenoid valve core to move downward to seal the through hole. When the solenoid valve core moves downward, the extrusion block on the side wall is squeezed by the solenoid valve core, and the extrusion block drives the plug rod to move to both sides, and the plug rod drives the synchronization rod at the end to slide to both sides, and the position of the rocker arm on the synchronization rod changes synchronously, and the rocker arm drives the storage box at the end to move vertically upward, and finally the storage box can be covered on the hemispherical filter, so that the impurities on the hemispherical filter cannot flow everywhere, but can only fall into the storage box, and then the cleaned impurities are temporarily stored, thereby ensuring that the solenoid valve can work smoothly.

[0021] By providing a cleaning unit, when the hemispherical filter is completely placed inside the storage box, the battery valve core continues to move downward, and the extrusion block has been completely squeezed and cannot move. At this stage, the special-shaped rod is inserted into the special-shaped groove opened at the bottom of the synchronous shaft, and the solenoid valve core continues to move downward. When the conical surface at the bottom of the solenoid valve core and the pressure rod contact each other, the pressure rod drives the limit slider to slide to both sides, and the guide racks on the limit slider move toward each other, thereby driving the driving gear to rotate. The driving gear drives the special-shaped rod and the annular scraper to rotate through the synchronous shaft. At this time, the annular scraper can clean the hemispherical filter, and the cleaned impurities fall into the storage box for easy collection later. This method ensures that the filter can be automatically cleaned when the solenoid valve is closed, does not require external power supply, is simpler to operate, and has lower cost.

[0022] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached picture:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a solenoid valve;

[0025] Figure 2 A partial cross-sectional view of a solenoid valve (I);

[0026] Figure 3 is a partial cross-sectional view of a solenoid valve (II);

[0027] Figure 4 A solenoid valve Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 A solenoid valve Figure 3 Enlarged view of point B in the middle;

[0029] Figure 6 It is a cross-sectional view of a hemispherical filter screen of a solenoid valve;

[0030] Figure 7 It is a cross-sectional view of a protective cover of a solenoid valve;

[0031] Figure 8 This is a schematic diagram of the partial structure of a solenoid valve.

[0032] In the figure:

[0033] 101, solenoid valve body; 1011, solenoid valve core; 102, transmission pipeline; 1021, connecting joint; 103, bent valve seat; 1031, through hole; 104, sealing door; 1041, discharge port;

[0034] 200, filter unit; 201, hemispherical filter screen; 2011, filter hole; 202, synchronous shaft; 2021, special-shaped socket;

[0035] 300, lifting unit; 301, extrusion block; 3011, inclined plane; 3012, storage slot; 302, plug rod; 3021, baffle; 3022, extrusion spring; 3023, slot; 303, guide slider; 3031, guide slide slot; 304, slide seat; 3041, slide rod; 305, synchronization rod; 3051, rocker arm; 306, storage box; 3061, storage cavity; 3062, guide bucket; 3063, mounting ear; 3064, positioning rod; 3065, tension spring; 3066, positioning plate; 307, cross bracket; 3071, annular scraper; 3072, special-shaped rod;

[0036] 400, cleaning unit; 401, driving gear; 4011, gear shaft; 4012, protective cover; 4013, side plate; 4014, mounting block; 402, guide rack; 4021, connecting plate; 4022, limit slider; 4023, limit slide groove; 403, pressure rod; 4031, guide wheel; 404, reset cover; 4041, reset rod; 4042, partition; 4043, reset spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0038] Embodiment 1:

[0039] like Figures 1 to 8As shown, a solenoid valve comprises a solenoid valve body 101, a filter unit 200, a lifting unit 300 and a cleaning unit 400, a transmission pipeline 102 is installed on the solenoid valve body 101, a bent valve seat 103 is installed inside the transmission pipeline 102, a through hole 1031 is opened on the bent valve seat 103, and the through hole 1031 vertically corresponds to the solenoid valve core 1011 at the output end of the solenoid valve body 101; the filter unit 200 comprises a hemispherical filter screen 201, the hemispherical filter screen 201 is installed at the bottom of the bent valve seat 103, and the hemispherical filter screen 201 and the through hole 1031 correspond to each other, and a synchronous shaft 202 is rotatably installed on the hemispherical filter screen 201;

[0040] The lifting unit 300 includes an extrusion block 301, which is plugged into the side wall of the through hole 1031. A plug rod 302 is installed on the back of the extrusion block 301. A guide slider 303 is installed at the end of the plug rod 302. A synchronization rod 305 is installed at the bottom of the guide slider 303. A rocker arm 3051 is installed at the end of the synchronization rod 305. The rocker arm 3051 is in an inclined state. A storage box 306 is installed at the end of the rocker arm 3051. The storage box 306 is plugged into the bottom of the transmission pipeline 102, and an annular scraper 3071 is rotatably installed inside the storage box 306. The annular scraper 3071 corresponds to the hemispherical filter 201, and a special-shaped rod 3072 is installed at the rotation center of the annular scraper 3071. The special-shaped rod 3072 Corresponding to the special-shaped socket 2021 opened at the bottom of the synchronization shaft 202; when the hemispherical filter needs to be cleaned, the operator needs to close the solenoid valve body, control the solenoid valve core to move downward, and seal the through hole. When the solenoid valve core moves downward, the extrusion block on the side wall is squeezed by the solenoid valve core, and the extrusion block drives the plug rod to move to both sides, and the plug rod drives the synchronization rod at the end to slide to both sides, and the position of the rocker arm on the synchronization rod changes synchronously, and the rocker arm drives the storage box at the end to move vertically upward, and finally the storage box can be covered on the hemispherical filter, so that the impurities on the hemispherical filter cannot flow everywhere, but can only fall into the storage box, and then the cleaned impurities are temporarily stored, ensuring that the solenoid valve can work smoothly.

[0041] The cleaning unit 400 includes a driving gear 401, which is placed inside the through hole 1031. The driving gear 401 and the synchronization shaft 202 are connected to each other. A pair of guide racks 402 are meshed on the side walls of the driving gear 401. A limiting slider 4022 is installed on the guide rack 402. A pressure rod 403 is installed on the top of the limiting slider 4022. The pressure rod 403 is adapted to the conical surface at the bottom of the solenoid valve core 1011. When the hemispherical filter is completely placed inside the storage box, the battery valve core continues to move downward, and the extrusion block has been completely squeezed and cannot move. At this stage, the special-shaped rod is inserted into the special-shaped groove at the bottom of the synchronous shaft, and the solenoid valve core continues to move downward. When the conical surface at the bottom of the solenoid valve core and the pressure rod contact each other, the pressure rod drives the limit slider to slide to both sides, and the guide racks on the limit slider move toward each other, thereby driving the drive gear to rotate. The driving gear drives the special-shaped rod and the annular scraper to rotate through the synchronous shaft. At this time, the annular scraper can clean the hemispherical filter, and the cleaned impurities fall into the storage box for easy collection later. This method ensures that the filter can be automatically cleaned when the solenoid valve is closed. No external power supply is required, the operation is simpler, and the cost is lower.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, in a specific embodiment, connecting joints 1021 are installed on both sides of the transmission pipeline 102, and internal threads are provided inside the connecting joints 1021. The bent valve seat 103 divides the chamber inside the transmission pipeline 102, and the connecting joints 1021 on both sides correspond to the divided chambers. Through the connecting joints 1021 on the side wall of the transmission pipeline 102, the transmission pipeline 102 and the external delivery pipe can be connected to each other, and the electromagnetic valve body 101 controls the movement of the electromagnetic valve core 1011 (the electromagnetic valve body 101 controls the electromagnetic valve core 1011, which is a prior art and will not be repeated here), and the electromagnetic valve core 1011 and the through hole 1031 are separated from each other, so as to achieve the purpose of opening and closing the pipeline and controlling the flow.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, further, a discharge port 1041 is provided at the bottom of the transmission pipe 102, and the discharge port 1041 vertically corresponds to the storage box 306. A sealing door 104 is installed on the discharge port 1041 by bolts, and a sealing gasket is provided between the sealing door 104 and the discharge port 1041. When impurities accumulate to a certain extent, the operator can remove the sealing door 104 and discharge the impurities in the storage box 306 through the sealing door 104.

[0044] Embodiment 2:

[0045] The difference between the above embodiment and this embodiment is that: Figure 5 , Figure 6 and Figure 8 As shown, the hemispherical filter screen 201 is provided with a filter hole 2011, the end face of one side of the special-shaped socket 2021 is circular, and the end face of the other side of the special-shaped socket 2021 is in a straight line, the special-shaped rod 3072 is in a straight line, and a cross bracket 307 is rotatably mounted at the bottom of the annular scraper 3071, and the cross bracket 307 is mounted inside the storage box 306. This arrangement ensures that the special-shaped rod 3072 and the special-shaped socket 2021 can be plugged into each other and can rotate synchronously.

[0046] like Figure 3 and Figure 4 As shown, in a specific embodiment, a slope 3011 is provided on the surface of the extrusion block 301, and the slope 3011 is located on the upper surface of the extrusion block 301. A receiving groove 3012 is provided on the inner wall of the through hole 1031. The extrusion block 301 is inserted into the receiving groove 3012, and the thickness of the extrusion block 301 is adapted to the depth of the receiving groove 3012. The baffle 3021 is slidably arranged in the slot 3023, and the slot 3023 is arranged on the inner wall of the bent valve seat 103. The surface of the plug rod 302 located inside the slot 3023 is sleeved with an extrusion spring 3022, and one end of the extrusion spring 3022 is connected to the inside of the slot 3023, and the other end of the extrusion spring 3022 is connected to the side wall of the baffle 3021. As the solenoid valve core 1011 continues to slide downward, the solenoid valve core 1011 first contacts the extrusion block 301 on the side wall, and the extrusion block 301 is pressed into the storage groove 3012 through the inclined surface 3011 on the surface of the extrusion block 301, thereby completing the storage operation. When the extrusion block 301 moves to both sides, the plug rod 302 at the end of the extrusion block 301 slides to both sides simultaneously, and the baffle 3021 on the plug rod 302 can slide on the slot 3023. When the baffle 3021 moves, the extrusion spring 3022 can be squeezed, and the extrusion spring 3022 is used to facilitate the later reset.

[0047] like Figure 3 and Figure 4As shown, further, a guide slot 3031 is provided inside the bent valve seat 103, a guide slider 303 is slidably arranged inside the guide slot 3031, a slide bar 3041 is installed transversely through the guide slot 3031, a slide seat 304 is slidably arranged inside the slide bar 3041, the slide seat 304 is welded on the side wall of the guide slider 303, and a synchronization rod 305 is slidably arranged inside the guide slot 3031. When the plunger 302 slides, the guide slider 303 at the end of the plunger 302 slides on the guide slot 3031, and the slide seat 304 on the side wall of the guide slider 303 slides along the slide bar 3041, which serves the purpose of limiting, and when the guide slider 303 slides outward, the synchronization rod 305 on the guide slider 303 slides synchronously on the guide slot 3031, and the entire storage box 306 can be driven to move vertically upward through the rocker arm 3051.

[0048] Embodiment 3:

[0049] The difference between the above embodiment and this embodiment is that: Figure 3 and Figure 8 As shown, a storage chamber 3061 is provided inside the storage box 306, a circular inlet is provided on the top of the storage box 306, and the circular inlet and the hemispherical filter 201 are adapted to each other, a guide bucket 3062 is provided at the bottom of the storage chamber 3061, and the guide bucket 3062 is conical, and a mounting ear 3063 is installed on the side wall of the storage box 306, and a positioning rod 3064 is slidably provided on the mounting ear 3063, one end of the positioning rod 3064 is installed on the transmission pipeline 102, and a positioning plate 3066 is installed on the other end of the positioning rod 3064, and the diameter of the positioning plate 3066 is larger than the diameter of the positioning rod 3064, and a tension spring 3065 is sleeved on the positioning rod 3064, one end of the tension spring 3065 is clamped on the side wall of the mounting ear 3063, and the other end of the tension spring 3065 is clamped on the transmission pipeline 102. During the upward movement of the storage box 306, the mounting ear 3063 on the side wall of the storage box 306 can slide on the positioning rod 3064, and the positioning plate 3066 ensures that the mounting ear 3063 and the positioning rod 3064 will not separate. The tension spring 3065 on the positioning rod is stretched synchronously, and the tension spring 3065 is used to facilitate the subsequent resetting operation.

[0050] like Figure 6 and Figure 7As shown, in a specific embodiment, a gear shaft 4011 is installed at the rotation center of the driving gear 401, the bottom of the gear shaft 4011 and the synchronization shaft 202 are connected to each other, a protective cover 4012 is sleeved on the gear shaft 4011, and the guide rack 402 is slidably arranged inside the protective cover 4012, a connecting plate 4021 is installed between the side wall of the guide rack 402 and the limit slider 4022, the limit slider 4022 is slidably arranged on the limit slide groove 4023 opened on the side wall of the protective cover 4012, a side plate 4013 is installed on the side wall of the protective cover 4012, a mounting block 4014 is installed at the end of the side plate 4013, and the mounting block 4014 is attached to the side wall of the through hole 1031, and a locking bolt is screwed and installed on the side plate 4013. When the pressure rod 403 slides, the limiting slider 4022 at the bottom of the pressure rod 403 slides on the limiting slide groove 4023 on the protective cover 4012, and the connecting plate 4021 at the bottom of the limiting slider 4022 drives the guide rack 402 to move to both sides. The guide rack 402 is meshed with a driving gear 401, and the driving gear 401 rotates synchronously. The gear shaft 4011 on the driving gear 401 drives the synchronous shaft 202 to rotate, and the synchronous shaft 202 drives the special-shaped rod 3072 to rotate. The special-shaped rod 3072 drives the annular scraper 3071 to rotate, and the annular scraper 3071 can clean up the blocked impurities.

[0051] like Figure 6 and Figure 7 As shown, further, a reset cover 404 is installed on the side wall of the side plate 4013, and a partition 4042 is slidably arranged inside the reset cover 404, a reset spring 4043 is clamped between one end of the partition 4042 and the inner wall of the reset cover 404, the compression direction of the reset spring 4043 is the same as the moving direction of the partition 4042, and a reset rod 4041 is installed on the other end of the partition 4042, the reset rod 4041 movably passes through the reset cover 404, the end of the reset rod 4041 is connected to the side wall of the pressure rod 403, and a guide wheel 4031 is installed on the top of the pressure rod 403. When the extrusion block 301 completes the extrusion, as the solenoid valve core 1011 continues to move downward, the conical surface at the bottom of the solenoid valve core 1011 can contact the pressure rod 403, and the guide wheel 4031 on the pressure rod 403 can fit well with the conical surface, and as the conical surface is squeezed downward, the pressure rod 403 is squeezed and moved to both sides, and the reset rod 4041 on the pressure rod 403 drives the partition 4042 to slide inside the reset cover 404, and the reset spring 4043 between the reset cover 404 and the partition 4042 is squeezed, and the reset spring 4043 facilitates the later reset operation.

[0052] The implementation principle of a solenoid valve in this embodiment is as follows:

[0053] The transmission pipeline 102 and the external delivery pipe can be connected to each other through the connecting joint 1021 on the side wall of the transmission pipeline 102, and the solenoid valve body 101 controls the movement of the solenoid valve core 1011 (the solenoid valve body 101 controls the solenoid valve core 1011 which is the prior art and will not be described again here), and the solenoid valve core 1011 and the through hole 1031 are separated from each other, thereby achieving the purpose of opening and closing the pipeline and controlling the flow rate.

[0054] When the liquid is transported in the transmission pipeline 102 , impurities in the liquid can be filtered by the hemispherical filter 201 .

[0055] When it is necessary to remove impurities on the hemispherical filter screen 201, the operator needs to control the solenoid valve core 1011 to move downward so that the solenoid valve core 1011 is re-inserted into the through hole 1031, thereby closing the solenoid valve.

[0056] As the solenoid valve core 1011 continues to slide downward, the solenoid valve core 1011 first contacts the extrusion block 301 on the side wall, and the extrusion block 301 is pressed into the storage groove 3012 through the inclined surface 3011 on the surface of the extrusion block 301, thereby completing the storage operation. When the extrusion block 301 moves to both sides, the plug rod 302 at the end of the extrusion block 301 slides to both sides simultaneously, and the baffle 3021 on the plug rod 302 can slide on the slot 3023. When the baffle 3021 moves, the extrusion spring 3022 can be squeezed, and the extrusion spring 3022 is used to facilitate the later reset.

[0057] When the insertion rod 302 slides, the guide slider 303 at the end of the insertion rod 302 slides on the guide slot 3031, and the slide seat 304 on the side wall of the guide slider 303 slides along the slide rod 3041, which achieves the purpose of limiting. When the guide slider 303 slides outward, the synchronization rod 305 on the guide slider 303 slides synchronously on the guide slot 3031, and the entire storage box 306 can be driven to move vertically upward through the set rocker arm 3051.

[0058] During the upward movement of the storage box 306, the mounting ear 3063 on the side wall of the storage box 306 can slide on the positioning rod 3064, and the positioning plate 3066 ensures that the mounting ear 3063 and the positioning rod 3064 will not separate. The tension spring 3065 on the positioning rod is stretched synchronously, and the tension spring 3065 is used to facilitate the subsequent resetting operation.

[0059] The storage box 306 moves upward, at which time the inlet of the storage box 306 can completely wrap the hemispherical filter 201 inside the storage cavity 3061, and the special-shaped rod 3072 inside the storage box 306 can be vertically inserted into the special-shaped socket 2021 opened at the bottom of the synchronization shaft 202, so as to facilitate the subsequent synchronous rotation, and at this time the annular scraper 3071 and the hemispherical filter 201 are tightly fitted.

[0060] When the extrusion block 301 completes the extrusion, as the solenoid valve core 1011 continues to move downward, the conical surface at the bottom of the solenoid valve core 1011 can contact the pressure rod 403, and the guide wheel 4031 on the pressure rod 403 can fit well with the conical surface, and as the conical surface is squeezed downward, the pressure rod 403 is squeezed and moved to both sides, and the reset rod 4041 on the pressure rod 403 drives the partition 4042 to slide inside the reset cover 404, and the reset spring 4043 between the reset cover 404 and the partition 4042 is squeezed, and the reset spring 4043 facilitates the later reset operation.

[0061] While the pressure rod 403 slides, the limit slider 4022 at the bottom of the pressure rod 403 slides on the limit slide groove 4023 on the protective cover 4012, and the connecting plate 4021 at the bottom of the limit slider 4022 drives the guide rack 402 to move to both sides. The guide rack 402 is meshed with a driving gear 401, and the driving gear 401 rotates synchronously. The gear shaft 4011 on the driving gear 401 drives the synchronous shaft 202 to rotate, and the synchronous shaft 202 drives the special-shaped rod 3072 to rotate. The special-shaped rod 3072 drives the annular scraper 3071 to rotate, and the annular scraper 3071 can clean up the blocked impurities.

[0062] The cleaned impurities can fall into the storage chamber 3061, and the impurities can be guided to the bottom of the storage chamber 3061 through the guide bucket 3062. After cleaning, the operator can complete the reset through the above-mentioned reverse operation. At this time, the impurities that fall into the storage chamber 3061 are located in the storage box 306, and the liquid does not move through the storage box 306 at this time, ensuring that the liquid inside the storage box 306 is relatively static, so the impurities are not easily re-adsorbed onto the hemispherical filter 201.

[0063] When the impurities accumulate to a certain extent, the operator can dismantle the sealing door 104 and complete the discharge operation of the impurities through the sealing door 104.

Claims

1. A solenoid valve, comprising a solenoid valve body (101), a filtering unit (200), a lifting unit (300) and a cleaning unit (400), characterized in that: A transmission pipeline (102) is installed on the solenoid valve body (101), a bent valve seat (103) is installed inside the transmission pipeline (102), a through hole (1031) is provided on the bent valve seat (103), the through hole (1031) vertically corresponds to the solenoid valve core (1011) at the output end of the solenoid valve body (101), connecting joints (1021) are installed on both sides of the transmission pipeline (102), internal threads are provided inside the connecting joints (1021), the bent valve seat (103) divides the chamber inside the transmission pipeline (102), and the connecting joints (1021) on both sides correspond to the divided chambers respectively; The filter unit (200) comprises a hemispherical filter screen (201), the hemispherical filter screen (201) is installed at the bottom of the bent valve seat (103), the hemispherical filter screen (201) and the through hole (1031) correspond to each other, and a synchronous shaft (202) is rotatably installed on the hemispherical filter screen (201); The lifting unit (300) comprises an extrusion block (301), the extrusion block (301) is plugged into the side wall of the through hole (1031), an insertion rod (302) is installed on the back of the extrusion block (301), a synchronization rod (305) is installed at the bottom of the guide slider (303), a rocker arm (3051) is installed at the end of the synchronization rod (305), the rocker arm (3051) is in an inclined state, a storage box (306) is installed at the end of the rocker arm (3051), the storage box (306) is plugged into the bottom of the transmission pipeline (102), and an annular scraper (3071) is rotatably installed inside the storage box (306), the annular scraper (3071) corresponds to the hemispherical filter (201), and the annular scraper (3071) A special-shaped rod (3072) is installed at the rotation center, and the special-shaped rod (3072) corresponds to the special-shaped plug hole (2021) opened at the bottom of the synchronization shaft (202). A guide groove (3031) is opened inside the bent valve seat (103), and a guide slider (303) is slidably arranged inside the guide groove (3031). The end of the plug rod (302) is installed on the guide slider (303). A slide rod (3041) is installed horizontally through the inside of the guide groove (3031), and a slide seat (304) is slidably arranged inside the slide rod (3041). The slide seat (304) is welded and arranged on the side wall of the guide slider (303). The synchronization rod (305) is slidably arranged inside the guide groove (3031); The cleaning unit (400) comprises a driving gear (401), wherein the driving gear (401) is disposed inside the through hole (1031), the driving gear (401) and the synchronization shaft (202) are connected to each other, a pair of guide racks (402) are meshedly provided on the side wall of the driving gear (401), a limit slider (4022) is installed on the guide rack (402), a pressure rod (403) is installed on the top of the limit slider (4022), and the pressure rod (403) is adapted to the conical surface at the bottom of the electromagnetic valve core (1011).

2. A solenoid valve according to claim 1, characterized in that: A discharge port (1041) is provided at the bottom of the transmission pipe (102), the discharge port (1041) vertically corresponds to the storage box (306), a sealing door (104) is installed on the discharge port (1041) by means of bolts, and a sealing gasket is provided between the sealing door (104) and the discharge port (1041).

3. The solenoid valve according to claim 1, characterized in that: The hemispherical filter screen (201) is provided with a filter hole (2011), one end surface of the special-shaped plug hole (2021) is circular, and the other end surface of the special-shaped plug hole (2021) is in the shape of a straight line, the special-shaped rod (3072) is in the shape of a straight line, and a cross bracket (307) is installed at the bottom of the annular scraper (3071), and the cross bracket (307) is installed inside the storage box (306).

4. The solenoid valve according to claim 1, characterized in that: The surface of the extrusion block (301) is provided with an inclined surface (3011), the inclined surface (3011) is located on the upper surface of the extrusion block (301), the inner wall of the through hole (1031) is provided with a receiving groove (3012), the extrusion block (301) is inserted into the receiving groove (3012), and the thickness of the extrusion block (301) is adapted to the depth of the receiving groove (3012).

5. The solenoid valve according to claim 1, characterized in that: A baffle (3021) is installed on the side wall of the insertion rod (302), and the baffle (3021) is slidably arranged in a slot (3023), and the slot (3023) is opened on the inner wall of the bent valve seat (103), and an extrusion spring (3022) is sleeved on the surface of the insertion rod (302) inside the slot (3023), one end of the extrusion spring (3022) is connected to the inside of the slot (3023), and the other end of the extrusion spring (3022) is connected to the side wall of the baffle (3021).

6. The solenoid valve according to claim 1, characterized in that: The storage box (306) has a storage cavity (3061) formed inside, a circular inlet formed on the top of the storage box (306), and the circular inlet and the hemispherical filter (201) are adapted to each other, a guide bucket (3062) is formed on the bottom of the storage cavity (3061), and the guide bucket (3062) is conical, and a mounting ear (3063) is installed on the side wall of the storage box (306), and a positioning rod (3064) is slidably provided on the mounting ear (3063). One end of the positioning rod (3064) is mounted on the transmission pipe (102), and a positioning plate (3066) is mounted on the other end of the positioning rod (3064). The diameter of the positioning plate (3066) is larger than the diameter of the positioning rod (3064), and a tension spring (3065) is sleeved on the positioning rod (3064). One end of the tension spring (3065) is clamped on the side wall of the mounting ear (3063), and the other end of the tension spring (3065) is clamped on the transmission pipe (102).

7. The solenoid valve according to claim 1, characterized in that: A gear shaft (4011) is installed at the rotation center of the driving gear (401), the bottom of the gear shaft (4011) and the synchronous shaft (202) are connected to each other, a protective cover (4012) is sleeved on the gear shaft (4011), and the guide rack (402) is slidably arranged inside the protective cover (4012), a connecting plate (4021) is installed between the side wall of the guide rack (402) and the limit slider (4022), the limit slider (4022) is slidably arranged on a limit slide groove (4023) opened on the side wall of the protective cover (4012), a side plate (4013) is installed on the side wall of the protective cover (4012), a mounting block (4014) is installed at the end of the side plate (4013), and the mounting block (4014) is fitted on the side wall of the through hole (1031), and a locking bolt is screwed and installed on the side plate (4013).

8. The solenoid valve according to claim 7, characterized in that: A reset cover (404) is installed on the side wall of the side plate (4013), a partition (4042) is slidably arranged inside the reset cover (404), a reset spring (4043) is clamped between one end of the partition (4042) and the inner wall of the reset cover (404), the compression direction of the reset spring (4043) is the same as the movement direction of the partition (4042), a reset rod (4041) is installed on the other end of the partition (4042), the reset rod (4041) movably passes through the reset cover (404), the end of the reset rod (4041) is connected to the side wall of the pressure rod (403), and a guide wheel (4031) is installed on the top of the pressure rod (403).

Images