Solenoid valve assembly deslagging structure of water outlet device

Abstract

The utility model discloses an electromagnetic valve assembly deslagging structure of a water outlet device. A main water way, a bypass water way, an electromagnetic valve element and a bypass valve element are arranged in an electromagnetic valve assembly. A filter screen is arranged in the main waterway, a first waterway is arranged between the filter screen and the water inlet connector, and a second waterway is arranged between the filter screen and the water outlet connector. The electromagnetic valve core is used for movably opening and closing the second waterway; one end of the bypass waterway is communicated with the first waterway and is close to the filter screen, and the other end is communicated with the second waterway part between the electromagnetic valve core and the water outlet interface; the bypass valve element is used for movably opening and closing the bypass waterway. Therefore, the electromagnetic valve assembly is connected into a water outlet device, when the bypass valve element is controlled to open the bypass water way, water flow in the first water way can carry impurities at the position of the filter screen to be discharged from the second water way through the water outlet pipeline of the induction faucet along the bypass water way, bypassing the filter screen and the electromagnetic valve element, and deslagging treatment of the electromagnetic valve assembly can be conveniently and rapidly achieved. And the user experience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water outlet devices, in particular to a slag discharge structure of a solenoid valve component of a water outlet device. Background Art

[0002] In daily life, people often use faucets, showers, sprinklers and other water outlet devices to get water. At present, there are many types of faucets on the market, which can be roughly divided into manual and automatic. Manual means using manpower to open or close the faucet valve, while automatic means automatically opening or closing the faucet water supply channel through the control of the solenoid valve component when induction. The faucet can be a common induction faucet, a pull-out induction faucet, etc.

[0003] However, since the water inlet of the solenoid valve assembly of the induction faucet usually needs to be installed with a filter net and then connected to the water inlet pipe to filter impurities in the incoming water; after long-term use, when the impurities accumulate to a certain extent, it will affect the water inlet of the solenoid valve assembly, and it is necessary to remove the water inlet pipe for manual discharge of residues. However, since the solenoid valve assembly is usually installed under the basin, the space is small, which makes the manual discharge of residues cumbersome and difficult. Utility Model Content

[0004] The utility model aims to provide a slag discharge structure of a solenoid valve assembly of a water outlet device, which has the advantages of facilitating slag discharge and effectively improving slag discharge efficiency.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A solenoid valve assembly slag discharge structure of a water outlet device, wherein the solenoid valve assembly is provided with a main waterway, a bypass waterway, a solenoid valve core and a bypass valve core;

[0007] The two ends of the main water channel are respectively a water inlet interface and a water outlet interface, a filter screen is provided in the main water channel, a first water channel is between the filter screen and the water inlet interface, and a second water channel is between the filter screen and the water outlet interface;

[0008] The solenoid valve core is arranged between the filter screen and the water outlet interface, and is used to flexibly open and close the second water channel;

[0009] One end of the bypass waterway is connected to the first waterway and is close to the filter screen; the other end of the bypass waterway is connected to the second waterway portion between the electromagnetic valve core and the water outlet interface;

[0010] The bypass valve core is used for flexibly opening and closing the bypass waterway.

[0011] Furthermore, the bypass valve core has a control part exposed outside the solenoid valve assembly, and the control part controls the bypass valve core to reciprocate to open and close the bypass waterway.

[0012] Furthermore, the solenoid valve assembly includes an assembly valve body, the main waterway and the bypass waterway are formed in the assembly valve body, and the assembly valve body is respectively provided with a first mounting groove connected to the second waterway and a second mounting groove connected to the bypass waterway;

[0013] The solenoid valve core is sealed and installed in the first installation groove, and the solenoid valve core has a first closed end that is electrically driven and can movably block the second water channel; the bypass valve core can be reciprocatingly and sealedly installed in the second installation groove, the inner end of the bypass valve core is the second closed end, and the outer end is the control part, and the control part is manually controlled to drive the second closed end to movably block the bypass water channel.

[0014] Furthermore, an internal thread is provided in the second installation groove, an external thread which is threadedly matched with the internal thread is provided on the peripheral wall of the control part, and a control slot hole is provided on the end surface of the control part.

[0015] Furthermore, an annular groove is formed between the second closed end of the bypass valve core and the control part; a limit clamp is provided in the second installation groove, which clamps the bypass valve core and is located in the annular groove; and a sealing ring is sleeved on the second closed end.

[0016] Furthermore, the filter screen has a raised spherical surface; the spherical surface of the filter screen faces the water inlet interface; and the connecting end of the bypass waterway and the first waterway is located on the side of the filter screen.

[0017] Furthermore, the solenoid valve assembly also includes a battery assembly, and the battery assembly is used to supply power to the solenoid valve core.

[0018] Furthermore, the battery assembly includes a battery mounting tube, a battery compartment, a battery and a battery cover; the battery mounting tube is arranged in the solenoid valve assembly, one end of the battery mounting tube has a mounting tube opening connected to the outside, the side wall of the mounting tube opening is provided with a clamping block, the other end of the battery mounting tube has a power connection part, and the power connection part is electrically connected to the solenoid valve core; the battery is installed and fixed in the battery compartment, one end of the battery compartment has a power conduction part, and when the battery compartment is installed in the battery mounting tube, the power conduction part is electrically connected and contacted with the power connection part; the side wall of the battery cover is provided with a spiral clamping groove, and the battery cover is rotated and clamped in the clamping block of the mounting tube opening by the spiral clamping groove to fix the battery compartment.

[0019] Furthermore, the battery assembly includes a battery mounting barrel, a battery and a screw cap; the battery mounting barrel is arranged in the solenoid valve assembly, one end of the battery mounting barrel has a mounting barrel opening connected to the outside, and the other end of the battery mounting barrel has a power connection part; the battery is installed in the battery mounting barrel and is electrically connected and contacted with the power connection part, and the battery cover is installed at the mounting barrel opening to fix the battery compartment;

[0020] The power connection part includes two power connection springs and a power connection plate. The two power connection springs are spaced apart and clamped in two spring clamping grooves in the middle of the power connection plate. The power connection plate is clamped at the other end of the battery mounting tube opposite to the mounting tube opening.

[0021] Furthermore, an elastic clamping plate is provided on the outer side wall of the solenoid valve assembly, and a clamping groove is formed between the elastic clamping plate and the outer side wall of the solenoid valve assembly; and a buckle groove is provided on the elastic clamping plate.

[0022] After adopting the above technical scheme, the solenoid valve assembly is connected to the water outlet device. Assuming that it is connected and adapted to the induction faucet, the water inlet interface of the main water circuit is connected to the water inlet pipeline, and the water outlet interface is connected to the water outlet pipeline of the induction faucet, and the solenoid valve core is connected to the induction device of the induction faucet. The movement of the solenoid valve core is triggered by the signal of the sensor to open and close the second water circuit to realize the automatic switching of the induction faucet. After a period of use, when a large amount of impurities accumulate at the filter screen and affect the normal water outlet of the induction faucet, the bypass valve core can be controlled to open the bypass water circuit. At this time, the water flow of the first water circuit can carry the impurities at the filter screen along the bypass water circuit, bypass the filter screen and the solenoid valve core, and be discharged from the second water circuit through the water outlet pipeline of the induction faucet. The slag discharge treatment of the solenoid valve assembly can be realized conveniently and quickly, which greatly improves the user experience and is very convenient for maintenance and repair of the water outlet device and the solenoid valve assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0024] Figure 2 An exploded view of an embodiment of the utility model;

[0025] Figure 3 It is a partial structural exploded view of an embodiment of the utility model;

[0026] Figure 4 It is a cross-sectional view of an embodiment of the utility model, showing the bypass waterway closed state;

[0027] Figure 5 It is a cross-sectional view of an embodiment of the utility model, showing the bypass waterway open state;

[0028] Figure 6 for Figure 4 Stereoscopic view of.

[0029] Description of reference numerals: solenoid valve assembly 10, assembly valve body 1, main water channel 11, first water channel 111, second water channel 112, bypass water channel 12, water inlet interface 13, water inlet joint 131, water outlet interface 14, water outlet joint 141, first mounting groove 15, second mounting groove 16, internal thread 161, limit clip 162, mounting opening 17, card slot 171, housing top cover 18, card hook 181, embedded hole 1811, elastic clamp 19, clamping groove 191, buckle groove 192, solenoid valve core 2, first closed end 21 , bypass valve core 3, control part 31, external thread 311, control slot 312, second closed end 32, sealing ring 321, annular groove 33, filter screen 4, spherical surface 41, signal line 5, battery assembly 6, battery mounting tube 61, mounting tube opening 611, block 6111, power connection part 612, power connection spring 6121, power connection plate 6122, spring slot 6123, insert block 6124, battery compartment 62, power conduction part 621, battery 63, battery cover 64, spiral slot 641. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] like Figures 1 to 6 As shown, a solenoid valve assembly slag discharge structure of a water outlet device of the utility model comprises a solenoid valve assembly 10 , in which a main waterway 11 , a bypass waterway 12 , a solenoid valve core 2 and a bypass valve core 3 are arranged.

[0032] like Figures 4 to 6 As shown, the two ends of the main water channel 11 are respectively an inlet interface 13 and a water outlet interface 14. A filter screen 4 is provided in the main water channel 11. The filter screen 4 is usually arranged on the inner side of the water inlet interface 13. A first water channel 111 is between the filter screen 4 and the water inlet interface 13, and a second water channel 112 is between the filter screen 4 and the water outlet interface 14.

[0033] The solenoid valve core 2 is disposed between the filter screen 4 and the water outlet interface 14 , and is used to flexibly open and close the second water channel 112 .

[0034] One end of the bypass water channel 12 is connected to the first water channel 111 and is close to the filter screen 4 , and the other end is connected to the second water channel 112 between the solenoid valve core 2 and the water outlet interface 14 .

[0035] The bypass valve core 3 is used to flexibly open and close the bypass waterway 12 .

[0036] By this, the solenoid valve assembly is connected to the water outlet device (not shown in the figure), and assuming that it is connected and adapted to the induction faucet, the water inlet interface 13 of the main water path 11 is connected to the water inlet pipeline, and the water outlet interface 14 is connected to the water outlet pipeline of the induction faucet, and the solenoid valve core 2 is connected to the induction device of the induction faucet, and the solenoid valve core 2 is triggered by the signal of the sensor to move the second water path 112 to open and close, so as to realize the automatic switching of the water of the induction faucet; and after using it for a period of time, when a lot of impurities are accumulated at the filter screen and the normal water outlet of the induction faucet is affected, the bypass valve core 3 can be controlled to open the bypass water path 12, at this time, the water flow of the first water path 111 can carry the impurities at the filter screen 4 along the bypass water path 12, bypass the filter screen 4 and the solenoid valve core 2 and be discharged from the second water path 112 through the water outlet pipeline of the induction faucet, which can conveniently and quickly realize the slag discharge processing of the solenoid valve assembly, greatly improve the user experience, and it is very convenient to maintain and repair the water outlet device and the solenoid valve assembly.

[0037] In this embodiment, the bypass valve core 3 is configured as a purely mechanical structure that can be manually operated, so that the bypass valve core 3 has a control part 31 exposed outside the solenoid valve assembly 10. Therefore, the bypass valve core 3 can be controlled by the control part 31 to open and close the bypass waterway 12 by reciprocating motion.

[0038] Specifically, Figure 2 and Figure 6 As shown, the solenoid valve assembly 10 includes an assembly valve body 1 , and the assembly valve body 1 is installed inside the solenoid valve assembly 10 .

[0039] The main waterway 11 and the bypass waterway 12 are formed in the assembly valve body 1, and the assembly valve body 1 is respectively provided with a first installation groove 15 connected to the second waterway 112 and a second installation groove 16 connected to the bypass waterway 12; the solenoid valve core 2 is sealed and installed in the first installation groove 15, and the solenoid valve core 2 has a first closed end 21 that is electrically driven and movably blocks the second waterway 112; the solenoid valve core 2 can also be electrically connected to the sensing device (not shown) of the water outlet device through the signal line 5. The solenoid valve core 2 of this embodiment uses the existing technology to block the second waterway 112 and the electrical connection with the sensing device, and its specific structural principle is not repeated here.

[0040] See also Figure 5 The bypass valve core 3 can be reciprocatingly and sealedly installed in the second installation groove 16. The inner end of the bypass valve core 3 is the second closed end 32, and the outer end is the control part 31. Manually controlling the control part 31 can drive the second closed end 32 to block the bypass waterway 12.

[0041] Specifically, the second mounting groove 16 may be provided with an internal thread 161, the peripheral wall of the control portion 31 may be provided with an external thread 311 threadedly matched with the internal thread 161, and the end surface of the control portion 31 may be provided with a control slot 312. The control slot 312 of this embodiment is a "cross" hole as an example, and of course it may also be a "slot" hole or a hexagonal hole, etc.

[0042] Therefore, when slag discharge is required, the bypass valve core 3 is rotated through the control slot 312 by a screwdriver, so that the bypass valve core 3 is rotated and shifted in the second installation slot 16, so that the second closed end 32 opens the bypass waterway 12 to achieve slag discharge; after the slag discharge is completed, the bypass valve core 3 is rotated and reset to achieve the closure of the bypass waterway 12.

[0043] like Figure 4 and Figure 5 As shown, the main water channel 11 of this embodiment can be roughly vertically passed through the upper and lower sides of the component valve body 1, the filter screen 4 can be arranged in the middle position of the main water channel 11, the water inlet interface 13 can be provided with a water inlet joint 131, and the water outlet interface 14 can be provided with a water outlet joint 141, and the water outlet joint 141 can be a quick-connect structure; the first mounting groove 15 and the second mounting groove 16 can be respectively arranged on both sides of the second water channel 112 in the horizontal direction.

[0044] In order to prevent the bypass valve core 3 from falling out of the second mounting groove 16 during rotation, an annular groove 33 is formed between the second closed end 32 of the bypass valve core 3 and the operating part 31 in this embodiment; and a limiting clamp 162 is provided in the second mounting groove 16, which clamps the bypass valve core 3 and is located in the annular groove 33; the limiting clamp 162 can be a "U"-shaped part, and can be passed through the outside of the component valve body 1 and fixed in the second mounting groove 16.

[0045] Therefore, when the bypass valve core 3 rotates and shifts in the second mounting groove 16, it will be clamped and locked by the limit clamp 162 and will not fall out of the second mounting groove 16. At the same time, a sealing ring 321 is sleeved on the second closed end 32 to waterproof the second mounting groove 16 and prevent the bypass water path 12 from leaking out through the second mounting groove 16.

[0046] This embodiment sets the bypass valve core 3 of a purely mechanical structure, which can not only meet the demand for slag discharge, but also can open the bypass water channel 12 to provide normal water supply to the water outlet device when the solenoid valve core 2 fails or lacks power, thereby solving the problem that the water outlet device cannot be used when the solenoid valve core 2 fails.

[0047] In this embodiment, the filter screen 4 has a raised spherical surface 41, which faces the water inlet interface 13, and one end of the bypass waterway 12 is connected to the side of the filter screen 4. The raised spherical surface 41 can improve the success rate and efficiency of slag discharge.

[0048] Another example Figure 2 , Figure 3 and Figure 4 As shown, the solenoid valve assembly 10 further includes a battery assembly 6 , and the battery assembly 6 is used to supply power to the solenoid valve core 2 .

[0049] In this embodiment, the battery assembly 6 includes a battery mounting tube 61 , a battery compartment 62 , a battery 63 and a battery cover 64 .

[0050] The battery installation tube 61 is arranged in the solenoid valve assembly 10 and can be located on one side of the assembly valve body 1 to facilitate electrical connection with the solenoid valve core 2.

[0051] One end of the battery mounting tube 61 has a mounting tube opening 611 connected to the outside, and a clamping block 6111 is provided on the side wall of the mounting tube opening 611. The other end of the battery mounting tube 61 has a power connection part 612, and the power connection part 612 is electrically connected to the electromagnetic valve core 2; the battery 63 is installed and fixed in the battery compartment 62, and four batteries 63 can be fixed in this embodiment; one end of the battery compartment 62 has a power conduction part 621, and when the battery compartment 62 is installed in the battery mounting tube 61, the power conduction part 621 is electrically connected and contacted with the power connection part 612; the side wall of the battery cover 64 is provided with a spiral clamping groove 641, and the battery cover 64 is rotated and clamped in the clamping block 6111 of the mounting tube opening 611 by the spiral clamping groove 641 to fix the battery compartment 62.

[0052] In this way, when the solenoid valve assembly is installed, the installation tube opening 611 faces downward, and by arranging the battery compartment 62 and the battery cover 64 in cooperation, the battery 63 can be quickly installed and replaced, making it easier to maintain the solenoid valve assembly in a small space.

[0053] Of course, the battery compartment 62 may be omitted, and the battery 63 may be directly installed in the battery mounting tube 61 and fixed by the battery cover 64. The battery cover 64 may also be locked and fixed to the mounting tube opening 611 by conventional methods (this structure is not shown).

[0054] See also Figure 3 The solenoid valve assembly 10 has an installation opening 17 at the top for installing the assembly valve body 1. The installation opening 17 is closed by a shell top cover 18. At the same time, a hook 181 is provided on the side of the shell top cover 18 to be fixed with a slot 171 on the inner wall of the installation opening 17.

[0055] The power connection part 612 of the battery 63 assembly 6 may include two power connection springs 6121 and a power connection plate 6122. The two power connection springs 6121 are spaced apart and clamped in two spring clamping grooves 6123 in the middle of the power connection plate 6122. The power connection plate 6122 is clamped at the other end of the battery mounting tube 61 opposite to the mounting tube opening 611.

[0056] In this embodiment, the two ends of the power connection plate 6122 may be provided with inserts 6124, and the inserts 6124 may be clamped in the insert holes 1811 provided on the main body of the hook 181 of the housing top cover 18. In this way, the power connection spring 6121 is clamped on the power connection plate 6122 in advance, and then the power connection plate 6122 and the housing top cover 18 are fixed, and the housing top cover 18 is clamped in the installation opening 17, so that the installation operation of the power connection spring 6121 can be conveniently realized.

[0057] See also Figure 3 The outer wall of the solenoid valve assembly 10 may be provided with an elastic clamping plate 19, and a clamping groove 191 is formed between the elastic clamping plate 19 and the outer wall of the solenoid valve assembly 10, and the clamping groove 191 can clamp water pipes, electric wires and other lines; and the elastic clamping plate 19 is provided with a buckle groove 192, and the buckle groove 192 can cooperate with a nail or a hook on the wall to install and fix the solenoid valve assembly.

[0058] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the utility model should still fall within the protection scope of the utility model.

[0059] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0060] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

Claims

1. A slag discharge structure of a solenoid valve assembly of a water outlet device, characterized in that: The solenoid valve assembly is provided with a main waterway, a bypass waterway, a solenoid valve core and a bypass valve core; The two ends of the main water channel are respectively a water inlet interface and a water outlet interface, a filter screen is provided in the main water channel, a first water channel is between the filter screen and the water inlet interface, and a second water channel is between the filter screen and the water outlet interface; The solenoid valve core is arranged between the filter screen and the water outlet interface, and is used to flexibly open and close the second water channel; One end of the bypass waterway is connected to the first waterway and is close to the filter screen; the other end of the bypass waterway is connected to the second waterway portion between the electromagnetic valve core and the water outlet interface; The bypass valve core is used for flexibly opening and closing the bypass waterway.

2. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 1, characterized in that: The bypass valve core has a control part exposed outside the solenoid valve assembly, and the control part controls the bypass valve core to reciprocate to open and close the bypass waterway.

3. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 2, characterized in that: The solenoid valve assembly comprises an assembly valve body, the main waterway and the bypass waterway are formed in the assembly valve body, and the assembly valve body is respectively provided with a first mounting groove connected to the second waterway and a second mounting groove connected to the bypass waterway; The solenoid valve core is sealed and installed in the first installation groove, and the solenoid valve core has a first closed end that is electrically driven and can movably block the second water channel; the bypass valve core can be reciprocatingly and sealedly installed in the second installation groove, the inner end of the bypass valve core is the second closed end, and the outer end is the control part, and the control part is manually controlled to drive the second closed end to movably block the bypass water channel.

4. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 3, characterized in that: An internal thread is arranged in the second installation groove, an external thread which is threadedly matched with the internal thread is arranged on the peripheral wall of the control part, and a control slot hole is arranged on the end surface of the control part.

5. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 4, characterized in that: An annular groove is formed between the second closed end of the bypass valve core and the control part; a limit clamp is arranged in the second installation groove, which clamps the bypass valve core and is located in the annular groove; a sealing ring is sleeved on the second closed end.

6. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 1, characterized in that: The filter screen has a raised spherical surface; the spherical surface of the filter screen faces the water inlet interface; the connecting end of the bypass waterway and the first waterway is located on the side of the filter screen.

7. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 1, characterized in that: The solenoid valve assembly also includes a battery assembly, which is used to supply power to the solenoid valve core; the battery assembly includes a battery mounting tube, a battery compartment, a battery and a battery cover; the battery mounting tube is arranged in the solenoid valve assembly, one end of the battery mounting tube has a mounting tube opening connected to the outside, the side wall of the mounting tube opening is provided with a clamping block, and the other end of the battery mounting tube has a power connection part, which is electrically connected to the solenoid valve core; the battery is installed and fixed in the battery compartment, and one end of the battery compartment has a power conduction part, and when the battery compartment is installed in the battery mounting tube, the power conduction part is electrically connected and contacted with the power connection part; the side wall of the battery cover is provided with a spiral clamping groove, and the battery cover is rotated and clamped in the clamping block of the mounting tube opening by the spiral clamping groove to fix the battery compartment.

8. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 1, characterized in that: The solenoid valve assembly also includes a battery assembly, which is used to power the solenoid valve core; the battery assembly includes a battery mounting barrel, a battery and a screw cap; the battery mounting barrel is arranged in the solenoid valve assembly, one end of the battery mounting barrel has a mounting barrel opening connected to the outside, and the other end of the battery mounting barrel has a power connection part; the battery is installed in the battery mounting barrel and is electrically connected and contacted with the power connection part, and the battery cover is installed at the mounting barrel opening to fix the battery compartment; The power connection part includes two power connection springs and a power connection plate. The two power connection springs are spaced apart and clamped in two spring clamping grooves in the middle of the power connection plate. The power connection plate is clamped at the other end of the battery mounting tube opposite to the mounting tube opening.

9. The slag discharge structure of the electromagnetic valve assembly of the water outlet device according to claim 1, characterized in that: The outer side wall of the electromagnetic valve assembly is provided with an elastic clamping plate, and a clamping groove is formed between the elastic clamping plate and the outer side wall of the electromagnetic valve assembly; and a buckle groove is provided on the elastic clamping plate.

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