A sampling valve group with electromagnetic valves

Abstract

This application relates to a sampling valve assembly with a solenoid valve, belonging to the technical field of valves. It includes an inlet pipe and an outlet pipe. A control valve is located on the lower side of the outlet pipe, and a knob for controlling its opening and closing is located on the side of the control valve. A sampling pipe connected to the outlet pipe is located below the control valve. Second inlet ports are provided on the inner walls of both ends of the inlet pipe. A first solenoid valve for controlling material flow and a second solenoid valve for controlling steam flow are respectively located on the upper side of the inlet pipe. A locking assembly for controlling the control valve is located on the side of the outlet pipe. A bracket is located on the outer side of the outlet pipe. The locking assembly includes a locking plate and a driving component located on the side of the bracket. The driving component is used to move the locking plate. A locking groove for inserting a knob is provided on the upper side of the locking plate. This valve assembly requires remote control and personnel in a central control room to complete the sampling, preventing unauthorized personnel from obtaining materials.

Description

Technical Field

[0001] This application relates to the technical field of valves, and in particular to a sampling valve assembly with a solenoid valve. Background Technology

[0002] A sampling valve is a valve used to collect materials for analysis. It is now widely used in industries such as food and medicine. How to improve the quality of the collected samples is a hot research topic for technicians.

[0003] In related technologies, a sampling valve includes a valve body, a valve core, and a handle. The valve body has a discharge port on its side. The operator controls the valve core to open and close the discharge port by rotating the handle, and then takes a sample.

[0004] Among the aforementioned technologies, the sampling valve has poor anti-theft performance. Unrelated personnel may also use the sampling valve to collect materials, resulting in the theft or loss of materials or valuable microorganisms from the fermenter or test tank, which may lead to technology leakage. Summary of the Invention

[0005] The purpose of this application is to provide a sampling valve assembly with a solenoid valve to solve the problem of poor anti-theft performance of sampling valves in the above-mentioned related technologies.

[0006] The sampling valve assembly with a solenoid valve provided in this application adopts the following technical solution:

[0007] A sampling valve assembly with a solenoid valve includes an inlet pipe and an outlet pipe. A control valve is provided on the lower side of the outlet pipe, and a knob for controlling the opening and closing of the control valve is provided on the side of the control valve. A sampling pipe communicating with the outlet pipe is provided on the lower side of the control valve. A second inlet is provided on the inner wall of both ends of the inlet pipe. A first solenoid valve for controlling the flow of materials and a second solenoid valve for controlling the flow of steam are respectively provided on the upper side of the inlet pipe. A locking assembly for controlling the control valve is provided on the side of the outlet pipe. A bracket is provided on the outer side of the outlet pipe. The locking assembly includes a locking plate and a driving member located on the side of the bracket. The driving member is used to drive the locking plate to move. A locking groove for inserting a knob is provided on the upper side of the locking plate.

[0008] By adopting the above technical solution, during the sampling process, the sampling personnel first open the first solenoid valve via remote control or by notifying the central control room, and then control the locking component to unlock the control valve. The staff then opens the control valve to take samples through the sampling tube. After sampling, the first solenoid valve is closed, and then the second solenoid valve is opened to clean the inner walls of the discharge pipe and the sampling pipe. After rinsing, the second solenoid valve is closed, and the control valve is also closed. Finally, the control valve is locked by the locking component. With the dual anti-theft setting of the first solenoid valve and the locking component, the sampling can only be completed by personnel in the central control room via remote control, preventing unauthorized personnel from taking materials and improving the anti-theft performance of the sampling valve.

[0009] Optionally, the driving component is a driving cylinder, the telescopic rod of the driving cylinder is fixedly connected to the outer side of the locking plate, the side of the locking plate facing away from the telescopic rod is provided with a dovetail block, the side of the bracket facing away from the driving cylinder is provided with a slide rail, and the side of the slide rail is provided with a dovetail groove that is slidably connected to the dovetail block.

[0010] By adopting the above technical solution, the driving component is a driving cylinder, and the other side of the locking plate is slidably set through the cooperation of the dovetail and the dovetail groove. During the locking process of the locking assembly to lock the control valve, the extension rod of the driving cylinder drives the locking plate to move upward, and the other side of the locking plate slides along the dovetail groove, thereby making the locking plate more stable in the process of locking the control valve.

[0011] Optionally, the inner wall of the locking groove is provided with an elastic pad, and the elastic pad is provided with anti-slip texture.

[0012] By adopting the above technical solution, an elastic pad is provided on the inner wall of the locking groove. When the control valve is in the locked state, the knob on the side of the control valve abuts against the surface of the elastic pad, thereby preventing the knob from being turned even when the control valve is locked, and further enhancing the stability of the knob in the locking groove.

[0013] Optionally, a cleaning component is provided on the lower side of the locking plate. The cleaning component includes a collection hopper and a drain pipe. The upper side of the collection hopper is fixedly connected to the lower side of the locking plate, and a drain outlet fixedly connected to the drain pipe is provided on the lower side of the collection hopper.

[0014] By adopting the above technical solution, after the staff finishes taking the material, they need to open the second solenoid valve to rinse the inner walls of the discharge pipe and the receiving pipe with high-temperature water. With the setting of the collection hopper and the drain pipe, the waste liquid from the high-temperature water rinsing can flow through the receiving pipe into the collection hopper and the drain pipe and be discharged into the sewer. This avoids the situation where the rinsing mixture is directly discharged into the ground and the staff needs to clean the ground, thereby reducing the sampling time of the staff and improving the sampling efficiency of the staff.

[0015] Optionally, the inner wall of the collecting hopper is provided with a connecting plate, and the end of the connecting plate is provided with a sealing plug that abuts against the opening of the material receiving pipe.

[0016] By adopting the above technical solution, when the control valve is in the locked state, the upper side of the sealing plug abuts against the opening of the sampling tube, thereby preventing airborne microorganisms from entering the sampling tube and contaminating the inside of the steam-sterilized sampling tube and the discharge tube, thus improving the sampling quality of the sample.

[0017] Optionally, the drain pipe on the lower side of the collection hopper is a corrugated pipe.

[0018] By adopting the above technical solution, the corrugated pipe can not only fulfill its basic function of discharging mixed waste liquid into the sewer, but also undergo a certain degree of tensile deformation to adapt to the locking plate's up-and-down movement to lock the control valve.

[0019] Optionally, a water outlet pipe is fixedly provided on the inner wall of the collection hopper, and a plurality of first water outlet holes are opened on the side of the water outlet pipe.

[0020] By adopting the above technical solution, during the material handling process, when the material flows from the material handling pipe into the material handling cup, the material may splash onto the outside of the material handling pipe. With the setting of the water outlet pipe, when the control valve is in the locked state, the external water pipe is connected to the water outlet pipe, and distilled water is sprayed out from the first water outlet hole to clean the outer side of the material handling pipe, so as to prevent microorganisms from adhering to the surface of the material adhering to the outside of the material handling pipe, improve the sanitary environment under the material handling valve, and enhance the material handling quality during material handling.

[0021] Optionally, the upper side of the locking plate is provided with a protective cover, and the side of the protective cover is provided with an interlocking assembly. The interlocking assembly includes a gear and a rack meshing with it. The rack is rotatably connected to the side of the protective cover and fixedly connected to the side of the locking plate.

[0022] By adopting the above technical solution, when the control valve is unlocked, the locking plate drives the rack to move downward. Through the meshing of the gear and rack, the protective cover connected to the gear moves upward, allowing normal sampling. When the locking plate locks the control valve, the protective cover is fastened to the upper side of the locking plate, thereby preventing airborne microorganisms from contaminating the sampling tube, enhancing the protection performance of the sampling tube, and improving the sampling quality.

[0023] Optionally, the interlocking assembly includes a pulley block and a connecting rope. The pulley block includes a first pulley and a second pulley. The two ends of the connecting rope are fixedly connected to the upper side of the protective cover and the side of the locking plate, respectively.

[0024] By adopting the above technical solution, when the locking plate locks the control valve, the connecting rope is in a taut state, and the protective cover is fastened to the upper surface of the locking plate, thereby protecting the control valve. When the locking plate moves downward, the protective cover is driven to move upward through the pulley block and the connecting rope, allowing for normal sampling and enhancing the protection of the control valve, thus improving the quality of material sampling.

[0025] Optionally, both the first and second solenoid valves include a valve seat connected to the upper side of the feed pipe. The lower side of the valve seat is provided with a moving rod and a fixing block fixed to the end of the moving rod. The fixing block is used to control the opening and closing of the second feed port.

[0026] By adopting the above technical solution, when the first solenoid valve and the second solenoid valve are started, the valve seat is activated by a remote control signal or a signal from the central control room. The valve seat drives the fixed block at the end of the moving rod to control the opening and closing of the second feed port, thereby realizing the flow control of materials or steam, preventing unauthorized personnel from taking materials simply by controlling the valve, and improving the anti-theft performance of materials.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By setting the first solenoid valve, material sampling can only be completed by personnel in the remote control and central control room, preventing unauthorized personnel from taking materials. After material sampling is completed, the control valve is closed, and then the drive unit is activated to move the locking plate upward, inserting the knob on the side of the control valve into the locking groove, thereby locking the control valve. This prevents unauthorized personnel from opening the control valve by turning the knob while it is locked, improving the anti-theft performance of the control valve.

[0029] 2. By setting up a collection hopper and a drain pipe, the waste liquid from high-temperature water rinsing can flow through the sampling pipe into the collection hopper and the drain pipe and be discharged into the sewer. This avoids the situation where the rinsing mixture is directly discharged into the ground and requires staff to clean the ground, thereby reducing the sampling time of staff and improving the sampling efficiency of staff.

[0030] 3. By setting up a water outlet pipe on the inner wall of the collection hopper, when the control valve is in the locked state, the external water pipe is connected to the water outlet pipe, and distilled water is sprayed out from the first water outlet hole to clean the outer side of the material receiving pipe, so as to prevent microorganisms from adhering to the material surface on the outside of the material receiving pipe and improve the cleaning performance of the material receiving valve. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0032] Figure 2 This is a schematic diagram of the installation structure of the first and second solenoid valves in Embodiment 1 of this application;

[0033] Figure 3 This is a partial cross-sectional view of the first solenoid valve in the closed state in Embodiment 1 of this application;

[0034] Figure 4 This is a partial cross-sectional view of the first solenoid valve in the open state in Embodiment 1 of this application;

[0035] Figure 5 This is a schematic diagram illustrating the structure of the control valve and the discharge pipe in Embodiment 1 of this application;

[0036] Figure 6 This is a partial cross-sectional view of the internal structure of the control valve in Embodiment 1 of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the control valve in the unlocked state in Embodiment 1 of this application;

[0038] Figure 8 This is a schematic diagram of the structure of the control valve in the locked state in Embodiment 1 of this application;

[0039] Figure 9 This is a schematic diagram of the structure of the interlocking assembly in Embodiment 1 of this application when the protective cover is opened;

[0040] Figure 10 This is a schematic diagram of the structure of the interlocking assembly in Embodiment 1 of this application when the protective cover is fastened;

[0041] Figure 11 This is a schematic diagram of the structure of the interlocking assembly in Embodiment 2 of this application when the protective cover is opened;

[0042] Figure 12 This is a schematic diagram of the structure of the interlocking assembly in Embodiment 2 of this application when the protective cover is fastened.

[0043] In the diagram, 1. Feed pipe; 11. First feed inlet; 12. Second feed inlet; 13. Mounting groove; 2. Discharge pipe; 21. Bracket; 22. Slide rail; 221. Dovetail groove; 3. First solenoid valve; 31. Valve seat; 32. Moving rod; 33. Fixing block; 34. Rubber pad; 4. Second solenoid valve; 5. Control valve; 51. Fixing part; 511. Feed pipe; 52. Fixing rod; 521. Knob; 522. Sealing ring; 6. Locking assembly; 61. Drive cylinder; 611. Telescopic rod; 62. Locking plate; 621. Dovetail block; 622. Locking groove; 623. Elastic pad; 7. Cleaning assembly; 71. Collection hopper; 711. Connecting plate; 712. Sealing plug; 72. Corrugated pipe; 73. Water outlet pipe; 731. First water outlet hole; 732. Connection port; 8. Protective cover; 9. Interlocking assembly; 91. Gear; 92. Rack; 921. Limiting block; 93. Pulley block; 931. First pulley; 932. Second pulley; 94. Connecting rope. Detailed Implementation

[0044] The present application will be further described in detail below with reference to all the accompanying drawings.

[0045] Example 1:

[0046] Reference Figure 1 and Figure 2 A sampling valve assembly with solenoid valves includes an inlet pipe 1 and an outlet pipe 2. The outlet pipe 2 is internally connected to the inlet pipe 1. The upper side of the inlet pipe 1 is provided with two solenoid valves, a first solenoid valve 3 and a second solenoid valve 4, which respectively control the entry of material and the entry of steam. The lower side of the outlet pipe 2 is provided with a control valve 5 that controls the flow of material or steam. The side of the outlet pipe 2 is provided with a locking component 6 that controls the control valve 5. The lower side of the locking component 6 is provided with a cleaning component 7.

[0047] Reference Figure 2 and Figure 3 Both the first solenoid valve 3 and the second solenoid valve 4 include a valve seat 31. A moving rod 32 is provided on the side of the valve seat 31. A fixing block 33 is fixedly provided at the end of the moving rod 32 facing away from the valve seat 31. A rubber pad 34 is provided on the lower side of the fixing block 33. The fixing block 33 and the rubber pad 34 are fixed to the moving rod 32 by bolts. Both ends of the feed pipe 1 are provided with a first feed port 11. An installation groove 13 for the valve seat 31 to be installed is opened on the upper side of the feed pipe 1 near the first feed port 11. The valve seat 31 and the feed pipe 1 are fixedly connected by bolts. The inside of the feed pipe 1 is provided with a second feed port 12 for material or steam to flow and located directly below the rubber pad 34.

[0048] Reference Figure 3 When the staff remotely controls or notifies the central control room to give the first solenoid valve 3 or the second solenoid valve 4 a closing signal, the first solenoid valve 3 causes the moving rod 32 to move downward relative to the valve seat 31, thereby causing the rubber pad 34 to come into contact with the edge of the second feed port 12. Material or steam cannot enter the next section of pipeline from the second feed port 12. At this time, the first solenoid valve 3 or the second solenoid valve 4 is in the closed state.

[0049] Reference Figure 4 When the staff remotely controls or notifies the central control room to give the first solenoid valve 3 or the second solenoid valve 4 an opening signal, the first solenoid valve 3 causes the moving rod 32 to move upward relative to the valve seat 31, so that the upper side of the fixed block 33 is in contact with the lower side of the valve seat 31. At the same time, there is a gap between the rubber pad 34 and the second feed port 12, and the material or steam can enter the feed pipe 1. At this time, the first solenoid valve 3 or the second solenoid valve 4 is in the open state.

[0050] Reference Figure 5 and Figure 6The control valve 5 includes a fixing part 51 fixed to the side of the discharge pipe 2. A material receiving pipe 511 is provided on the lower side of the fixing part 51. A fixing rod 52 is provided on the side of the fixing part 51. A knob 521 is fixedly connected to the end of the fixing rod 52. Two sealing rings 522 are sleeved on the outer side of the fixing rod 52. An installation hole for inserting the fixing rod 52 is opened in the middle of the fixing part 51. An internal thread is provided on the inner wall of the installation hole. An external thread is provided on the outer side of the fixing rod 52. The fixing part 51 and the fixing rod 52 are threadedly engaged. By rotating the knob 521, the fixing rod 52 is driven to move inside the installation hole, thereby controlling the opening and closing of the material receiving pipe 511 and controlling the flow rate of material or steam.

[0051] Reference Figure 6 When the knob 521 is fully tightened, the sealing ring 522 at the end of the fixing rod 52 will seal the discharge pipe 2. At this time, the control valve 5 is in the closed state, and the material or steam cannot flow out from the pipe opening on the lower side of the feeding pipe 511.

[0052] Reference Figure 6 and Figure 7 A bracket 21 is welded to the outer side of the discharge pipe 2. The locking assembly 6 includes a drive component and a locking plate 62 located on the side of the bracket 21. The drive component is a drive cylinder 61. A telescopic rod 611 is provided on the lower side of the drive cylinder 61. The side of the telescopic rod 611 is fixedly connected to the locking plate 62. A dovetail block 621 is welded to the side of the locking plate 62 facing away from the telescopic rod 611. A slide rail 22 is welded to the side of the bracket 21 facing away from the drive cylinder 61. A dovetail groove 221 is provided on the side of the slide rail 22 for the dovetail block 621 to be inserted and slid. A locking groove 622 is provided on the upper side of the locking plate 62 for the knob 521 to be inserted when the control valve 5 is in the closed state. An elastic pad 623 is fixed to the inner wall of the locking groove 622 with glue. The side of the elastic pad 623 is provided with anti-slip texture to prevent the knob 521 from loosening when it is inserted into the locking groove 622.

[0053] Reference Figure 7 When the staff retrieves materials, they remotely notify the central control room or start the drive cylinder 61 to move the telescopic rod 611 down and drive the locking plate 62 to move down. The knob 521 is not placed inside the locking groove 622. At this time, the control valve 5 is in the unlocked state. The locking component 6 unlocks the control valve 5. The control valve 5 can be opened by rotating the knob 521.

[0054] Reference Figure 8 After the staff finishes taking materials, they tighten the knob 521 of the control valve 5, and then remotely or notify the central control room to start the drive cylinder 61, so that the telescopic rod 611 moves upward, which in turn drives the locking plate 62 to move upward, embedding the tightened knob 521 into the locking groove 622. The knob 521 cannot be turned, and the control valve 5 is in the locked state.

[0055] Reference Figure 7 A cleaning component 7 is provided on the lower side of the locking plate 62. The cleaning component 7 includes a collection hopper 71 and a drain pipe, and the drain pipe is a corrugated pipe 72. The upper edge of the collection hopper 71 is welded and fixed to the lower side of the fixing plate. The collection hopper 71 is located directly below the control valve 5. A drain port fixedly connected to the corrugated pipe 72 is opened on the bottom side of the collection hopper 71. The end of the corrugated pipe 72 facing away from the collection hopper 71 is directly inserted into the sewer opening.

[0056] Reference Figure 7 When staff collect materials, residual water from the previous high-temperature water rinsing remains on the inner wall of the feed pipe 1 to the collection pipe 511. Therefore, the material entering the feed pipe 1 initially contains some moisture. This mixture needs to be discharged from the bottom of the collection pipe 511 before collecting the remaining material, thus improving the quality of the sample. Through the collection hopper 71 and corrugated pipe 72, the mixture can be directly discharged from the collection pipe 511 into the collection hopper 71, eventually flowing into the sewer. After collection, staff first close the first solenoid valve 3 controlling material flow, then open the control valve 5, and then open the second solenoid valve 4 controlling steam flow. This performs high-temperature sterilization cleaning of the section of pipeline from the feed pipe 1 to the collection pipe 511. The high-temperature water is discharged from the collection pipe 511, flows directly into the collection hopper 71, and then flows into the sewer through the corrugated pipe 72, preventing the high-temperature wastewater from the rinsing from being directly discharged onto the ground.

[0057] Reference Figure 8 A connecting plate 711 is fixedly installed on the side of the collection hopper 71, and a sealing plug 712 is installed on the upper side of the connecting plate 711, located directly below the material collection pipe 511. When the control valve 5 is in the locked state, the upper side of the sealing plug 712 abuts against the opening of the material collection pipe 511, sealing the material collection pipe 511 below the control valve 5, preventing microorganisms in the air from entering the interior of the material collection pipe 511, and improving the quality of the sample collection.

[0058] Reference Figure 9 and Figure 10The upper side of the locking plate 62 is covered with a protective cover 8. The side of the protective cover 8 is provided with an interlocking assembly 9. The interlocking assembly 9 includes two gears 91 and two racks 92. The two gears 91 are located on opposite sides of the protective cover 8 and are rotatably connected to the side of the protective cover 8. The racks 92 are fixedly connected to the side of the locking plate 62. The gears 91 mesh with each other. The side of the racks 92 is provided with a limiting block 921 fixed to the side of the protective cover 8 to prevent the meshing of the gears 91 and racks 92 from loosening. When the locking plate 62 moves downward, it drives the racks 92 to move downward synchronously. Due to the meshing of the gears 91 and racks 92, the protective cover 8 moves upward. When the control valve 5 is in the locked state, the protective cover 8 and the locking plate 62 are engaged, thereby further protecting the valve assembly and preventing microorganisms in the air from contaminating the control valve 5, thus improving the sampling quality.

[0059] Reference Figure 8 A water outlet pipe 73 is welded and fixed to the inner edge of the collecting hopper 71. The water outlet pipe 73 has evenly distributed first water outlet holes 731 on the side near the material receiving pipe 511. A connecting hole for the water outlet pipe 73 to pass through is opened on the side of the collecting hopper 71. The end of the water outlet pipe 73 has a connecting port 732 located on the outside of the collecting hopper 71. Since the material may splash from the material receiving cup to the outer side of the material receiving pipe 511 during material receiving, when the control valve 5 is in the locked state, the external water pipe is connected to the water outlet pipe 73 through the connecting port 732. The water pump is started so that distilled water passes through the external water pipe and the water outlet pipe 73 and sprays out from the first water outlet hole 731 to clean the outside of the material receiving pipe 511 and enhance the material receiving environment around the material receiving pipe 511.

[0060] The implementation principle of this application embodiment is as follows:

[0061] When staff collect materials, they first remotely or notify the central control room to start the first solenoid valve 3 and the drive cylinder 61. At this time, the control valve 5 is unlocked. The control valve 5 is opened by turning the knob 521. The material mixed with residual water is first discharged into the collection hopper 71, and then the sampling is completed through the sampling cup. After sampling, the control valve 5 is closed first, and then the first solenoid valve 3 is closed by remotely or notified to the central control room. Then the second solenoid valve 4 is opened, and high-temperature water is used to disinfect the inside of the feed pipe 1 and the material collection pipe 511. Then the control valve 5 is opened, and the cleaned high-temperature water is discharged into the collection hopper 71. The second solenoid valve 4 is closed by remotely or notified to the central control room. Then the control valve 5 is closed, the drive cylinder 61 is started, and the locking plate 62 is driven to lock the control valve 5. Finally, the water pump is started, and distilled water is sprayed out from the first water outlet 731 to clean the outside of the material collection port, completing the sampling process.

[0062] Example 2:

[0063] Reference Figure 11The difference between this embodiment and Embodiment 1 is that the interlocking component 9 includes a pulley group 93 and a connecting rope 94. The pulley group 93 includes a first pulley 931 and a second pulley 932 located on the side of the bracket 21. One end of the connecting rope 94 is fixedly connected to the protective cover 8, and the other end of the connecting rope 94 passes around the first pulley 931 and the second pulley 932 and is then fixedly connected to the side of the locking plate 62. When the valve group is in the locked state, the protective cover 8 is fastened to the locking plate 62, and the connecting rope 94 is in a taut state.

[0064] Reference Figure 12 When the drive cylinder 61 moves the locking plate 62 down to unlock the control valve 5, the connecting rope 94 moves the protective cover 8 up through the pulley group 93, allowing the staff to take samples normally through the control valve 5. The protective cover 8, pulley group 93 and connecting rope 94 are designed to protect the control valve 5, prevent airborne microorganisms from contaminating the valve group and improve the sampling quality.

[0065] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sampling valve assembly with a solenoid valve, comprising an inlet pipe (1) and an outlet pipe (2), wherein a control valve (5) is provided on the lower side of the outlet pipe (2), and a knob (521) for controlling the opening and closing of the control valve (5) is provided on the side of the control valve (5), and a sampling pipe (511) communicating with the outlet pipe (2) is provided on the lower side of the control valve (5). characterized in that The discharge pipe (2) is connected to the middle of the feed pipe (1). The inner walls of both ends of the feed pipe (1) are provided with second feed ports (12). The upper side of the feed pipe (1) is provided with a first solenoid valve (3) for controlling the flow of materials and a second solenoid valve (4) for controlling the flow of steam. The side of the discharge pipe (2) is provided with a locking assembly (6) for controlling the control valve (5). The outer side of the discharge pipe (2) is provided with a bracket (21). The locking assembly (6) includes a locking plate (62) and a driving member located on the side of the bracket (21). The driving member is used to drive the locking plate (62) to move. The upper side of the locking plate (62) is provided with a locking groove (622) for inserting a knob (521). The driving component is a driving cylinder (61). The telescopic rod (611) of the driving cylinder (61) is fixedly connected to the outer side of the locking plate (62). The side of the locking plate (62) facing away from the telescopic rod (611) is provided with a dovetail block (621). The side of the bracket (21) facing away from the driving cylinder (61) is provided with a slide rail (22). The side of the slide rail (22) is provided with a dovetail groove (221) that is slidably connected to the dovetail block (621). The lower side of the locking plate (62) is provided with a cleaning component (7), which includes a collection hopper (71) and a drain pipe. The upper side of the collection hopper (71) is fixedly connected to the lower side of the locking plate (62), and the lower side of the collection hopper (71) is provided with a drain outlet fixedly connected to the drain pipe. The inner wall of the collection hopper (71) is provided with a connecting plate (711), and the end of the connecting plate (711) is provided with a sealing plug (712) that abuts against the opening of the material taking pipe (511). The drain pipe on the lower side of the collection hopper (71) is a corrugated pipe (72). The inner wall of the collection hopper (71) is fixedly provided with a water outlet pipe (73), and the side of the water outlet pipe (73) is provided with a plurality of first water outlet holes (731). The upper side of the locking plate (62) is provided with a protective cover (8), and the side of the protective cover (8) is provided with a locking component (9). The locking component (9) includes a gear (91) and a rack (92) meshing with it. The rack (92) is rotatably connected to the side of the protective cover (8), and the rack (92) is fixedly connected to the side of the locking plate (62).

2. A sampling valve assembly with a solenoid valve according to claim 1, characterized in that, The inner wall of the locking groove (622) is provided with an elastic pad (623), and the elastic pad (623) is provided with anti-slip texture.

3. A sampling valve assembly with a solenoid valve according to claim 1, characterized in that, The first solenoid valve (3) and the second solenoid valve (4) both include a valve seat (31) connected to the upper side of the feed pipe (1). The lower side of the valve seat (31) is provided with a moving rod (32) and a fixing block (33) fixed to the end of the moving rod (32). The fixing block (33) is used to control the opening and closing of the second feed port (12).

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