Pressure controller for improving grinding powder

Abstract

The invention belongs to the technical field of pressure control, and particularly relates to a pressure controller for improving grinding powder, which comprises a shell, the inner wall of the shell is slidably connected with a microswitch, and the microswitch is provided with two switch contacts. The ceramic sleeve is fixed on the inner wall of the plastic part, so that powder generated by reciprocating friction of the ceramic push rod at the plastic part due to pressure change and high-frequency vibration of the compressor can be reduced, the probability that the powder is attached to a switch contact to influence work is further reduced, and the operation stability of the whole air conditioning system is ensured; when the pressure controller is installed on air conditioner outdoor units of different models, the pressure pre-value interval is adjusted, the material loss caused by frequent sliding friction of the ceramic push rod can be reduced, and the risk of switch contact failure caused by powder is reduced; the maintenance frequency and the labor cost can be reduced by improving powder grinding at the ceramic push rod and adjusting the pressure pre-value, the device can be further suitable for air conditioners of different models, and parts do not need to be frequently replaced due to the powder problem.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pressure control, and particularly relates to a pressure controller for improving powder grinding. BACKGROUND

[0002] The pressure controller on the air conditioner outdoor unit is a safety protection device for monitoring the high pressure and low pressure states of a refrigeration system. When the pressure is abnormal, it can automatically cut off the power supply of the compressor to prevent the compressor from being overloaded, the pipeline from being burst, and the refrigerant from being leaked due to pressure imbalance, thereby ensuring the safe operation of the equipment and being suitable for different working condition requirements.

[0003] A pressure controller disclosed in a Chinese patent with the publication number CN222849442U comprises a base, a first bellows, the base has a fluid passage, the fluid passage is in communication with the inner cavity of the first bellows, and the application can provide support when the bellows is radially deformed, thereby reducing the risk of damage to the first bellows.

[0004] In the design of an air conditioning system, the use of a pressure controller is very crucial, especially the pressure controller installed on the outdoor unit. Although the traditional pressure controller can provide support when the bellows is radially deformed, it is difficult to adaptively adjust the pressure pre-value interval for different models of air conditioner outdoor units, which leads to the fact that the porcelain push rod inside the pressure controller is easily worn out around the plastic part under the high-frequency vibration working condition generated by the operation of the compressor. The wear of the plastic part can further generate powder, which can easily affect the normal work of the micro switch, thereby affecting the stability of the entire air conditioning system.

[0005] Therefore, the application provides a pressure controller for improving powder grinding. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the application to solve the technical problems is that the application provides a pressure controller for improving powder grinding, which comprises a shell, a micro switch slidingly connected to the inner wall of the shell, two switch contacts provided on the micro switch, a plastic part fixedly connected to the inside of the shell, a porcelain sleeve fixedly connected to the center inner wall of the plastic part, a porcelain push rod slidingly connected to the inner wall of the porcelain sleeve, a diaphragm fixedly connected to the inside of the shell and located below the porcelain push rod, a connecting pipe fixedly connected to the bottom end of the shell, an adjusting cylinder fixedly connected to the bottom end of the connecting pipe, a separation cylinder fixedly connected to the inside of the adjusting cylinder, a sealing disc slidingly connected to the inner wall of the adjusting cylinder and located between the inner wall of the adjusting cylinder and the outer wall of the separation cylinder, and two slide rods fixedly connected to the end face of the sealing disc.

[0008] Preferably, the slide rod is provided with a limiting hole; the outer wall of the connecting pipe is fixedly connected with a fixing frame; the inner wall of the fixing frame is slidably connected with a limiting insert plate, and the side of the limiting insert plate close to the slide rod is fixedly connected with two insert rods corresponding to the limiting hole; the fixing frame is threadedly connected with a bolt, and the bolt penetrates through the limiting insert plate.

[0009] Preferably, the inner wall of the separation cylinder is fixedly connected with a fixed ring plate; the inner wall of the separation cylinder and above the fixed ring plate is slidably connected with a blocking plate, and the blocking plate is provided with two circular arc grooves; the end surface of the blocking plate is oppositely fixedly connected with two first elastic members.

[0010] Preferably, the inner wall of the separation cylinder is provided with an arc-shaped groove; the inner wall of the separation cylinder and below the arc-shaped groove is slidably connected with a pressing plate; the end surface of the pressing plate is fixedly connected with a top rod at the center; the end surface of the top rod is oppositely fixedly connected with two second elastic members.

[0011] Preferably, the top rod is in the shape of a conical column; the arc-shaped groove is provided with two arc-shaped grooves oppositely arranged.

[0012] Preferably, the adjusting cylinder is fixedly connected with a conduit, and the conduit can communicate the adjusting cylinder and the connecting pipe; the conduit is fixedly connected with a solenoid valve.

[0013] Preferably, the bottom end of the adjusting cylinder is fixedly connected with a guide cylinder; the guide cylinder is in the shape of a horn.

[0014] Preferably, the bottom end of the guide cylinder is fixedly connected with a metal sheet; the outer wall of the metal sheet is fixedly connected with a hoop.

[0015] Preferably, the blocking disc is fixedly connected with two sealing rings, and the diameters of the two sealing rings are not equal; the two sealing rings are respectively located on the outer wall and the inner wall of the blocking disc.

[0016] Preferably, the inside of the adjusting cylinder and below the separation cylinder is a storage cavity, one end of the conduit is fixedly connected in the storage cavity, and the other end of the conduit is fixedly connected in the connecting pipe.

[0017] The beneficial effects of the present application are as follows: 1. The improved pressure controller for reducing powder generation is fixed to the inner wall of the plastic part through the porcelain sleeve, which can reduce the powder generated by the reciprocating friction of the porcelain push rod at the plastic part due to pressure changes and high-frequency vibration of the compressor, thereby reducing the probability of powder adhering to the switch contact and affecting the work, and ensuring the stability of the entire air conditioning system; when the pressure controller is installed in different models of air conditioner outdoor units, the pressure pre-value interval in the adjusting cylinder is adjusted, and after the pressure pre-value suitable for the current air conditioner outdoor unit is adjusted, the material loss caused by frequent sliding friction of the porcelain push rod can be reduced, and the risk of switch contact failure caused by powder can be reduced; powder pollution needs to be cleaned regularly, and by improving the powder generation at the porcelain push rod and adjusting the pressure pre-value, the maintenance frequency and labor cost can be reduced after improvement, the cleaning demand can be reduced, and different models of air conditioners can be adapted without frequent replacement of parts due to powder problems; the improved pressure controller can reduce the friction resistance through the porcelain sleeve, indirectly ensure the control response efficiency, and reduce the energy consumption of invalid start and stop of the compressor.

[0018] 2. The improved pressure controller for reducing powder generation cooperates with the blocking plate by using the fixed ring plate to control the communication between the adjusting cylinder and the connecting pipe, thereby reducing the sliding frequency of the porcelain push rod, playing a role in separating the connecting pipe and the adjusting cylinder, and reducing the sliding frequency of the porcelain push rod caused by pressure changes and other factors; the storage cavities of the connecting pipe and the adjusting cylinder are controlled to be communicated by using the conduit cooperating with the electromagnetic valve, so as to realize the pressure relief control in the connecting pipe and the adjusting cylinder; the horn-shaped guide cylinder can be applied to the high-pressure exhaust end pipe of different models of air conditioner outdoor units, and then the connection is welded, the horn mouth is used as a socket guide, the welding contact area is increased, the welding length is significantly prolonged, and the tensile and shear strength is higher. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described below with reference to the drawings.

[0020] Figure 1 is a perspective view of the application; Figure 2 is a partial structure sectional view of the shell in the application; Figure 3 is a partial structure sectional view of the adjusting cylinder in the application; Figure 4 is a structure schematic view of the blocking plate in the application; Figure 5 is a structure schematic view of the conduit in the application; Figure 6 is a partial structure sectional view of the metal sheet in the application.

[0021] In the diagram: 1. Housing; 11. Microswitch; 12. Plastic part; 13. Porcelain sleeve; 14. Porcelain push rod; 15. Diaphragm; 16. Connecting pipe; 17. Adjusting cylinder; 18. Dividing cylinder; 19. Sealing plate; 191. Slide rod; 2. Fixing frame; 21. Limiting plate; 22. Bolt; 3. Fixing ring plate; 31. Sealing plate; 32. Elastic element No. 1; 4. Arc groove; 41. Extrusion plate; 42. Top rod; 43. Elastic element No. 2; 6. Conduit; 61. Solenoid valve; 7. Guide cylinder; 8. Metal sheet; 81. Clamp; 9. Sealing ring. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 5 As shown in the embodiment of the present invention, a pressure controller for improving grinding includes a housing 1; a micro switch 11 is slidably connected to the inner wall of the housing 1, and the micro switch 11 is provided with two switch contacts; a plastic part 12 is fixedly connected inside the housing 1; a ceramic sleeve 13 is fixedly connected to the inner wall of the center of the plastic part 12; a ceramic push rod 14 is slidably connected to the inner wall of the ceramic sleeve 13; a diaphragm 15 is fixedly connected inside the housing 1, and the diaphragm 15 is located below the ceramic push rod 14; a connecting pipe 16 is fixedly connected to the bottom end of the housing 1; an adjusting cylinder 17 is fixedly connected to the bottom end of the connecting pipe 16; a dividing cylinder 18 is fixedly connected inside the adjusting cylinder 17; a sealing disc 19 is slidably connected to the inner wall of the adjusting cylinder 17, and the sealing disc 19 is located between the inner wall of the adjusting cylinder 17 and the outer wall of the dividing cylinder 18; two... Slide rod 191; When the pressure controller is installed on the outdoor unit of the air conditioner, the housing 1 serves as the protective structure of the pressure controller. The micro switch 11, plastic part 12, ceramic sleeve 13, ceramic push rod 14 and diaphragm 15 cooperate to form the core of the pressure controller. When the pressure in the connecting pipe 16 is too high, the diaphragm 15 and the ceramic push rod 14 slide up to the inner wall of the ceramic sleeve 13 until the two switch contacts of the micro switch 11 are separated, and the compressor is turned off. When the pressure in the connecting pipe 16 is normal, the two switch contacts of the micro switch 11 are in contact, maintaining the normal operation of the compressor. By fixing the ceramic sleeve 13 to the inner wall of the plastic part 12, the powder generated by the ceramic push rod 14 due to pressure changes and high-frequency vibration of the compressor at the plastic part 12 can be reduced, thereby reducing the probability of powder adhering to the switch contacts and affecting the operation, and ensuring the stability of the entire air conditioning system. When the pressure controller is installed on different models of air conditioner outdoor units, the bottom end of the regulating cylinder 17 is connected to the high-pressure exhaust end of the refrigeration system to detect the exhaust pressure. The connecting pipe 16 is fixed to the top of the regulating cylinder 17 for connection. According to the current model of the air conditioner outdoor unit, the two slide rods 191 are adaptively slid, so that the sealing plate 19 slides between the regulating cylinder 17 and the dividing cylinder 18 to adjust the pressure preset value range inside the regulating cylinder 17, expanding or shrinking the maximum pressure preset value inside the regulating cylinder 17. When the sealing plate 19 slides up, the preset value is increased; when the sealing plate 19 slides down, the preset value is decreased. After the adjustment is completed, the slide rod 191 is fixed to the limit. After adjusting to the pressure preset value suitable for the current air conditioner outdoor unit, the material wear caused by the frequent sliding friction of the ceramic push rod 14 can be reduced, and the risk of powder causing the switch contact to fail can be reduced. Powder contamination requires regular cleaning. By improving the 14 grinding points on the ceramic push rod and adjusting the pressure preset value, the improvement can reduce the maintenance frequency and labor costs, reduce the need for cleaning, and also adapt to different models of air conditioners, eliminating the need to frequently replace parts due to powder problems. The improved pressure controller, through the setting of ceramic sleeve 13, can reduce frictional resistance, indirectly ensuring control response efficiency and reducing energy consumption from ineffective compressor start-stop.

[0024] A limiting hole is provided on the slide rod 191; a fixing bracket 2 is fixedly connected to the outer wall of the connecting pipe 16; a limiting insert plate 21 is slidably connected to the inner wall of the fixing bracket 2, and two insert rods are fixedly connected to the side of the limiting insert plate 21 near the slide rod 191, with the insert rods corresponding to the limiting hole; a bolt 22 is threadedly connected to the fixing bracket 2, and the bolt 22 passes through the limiting insert plate 21; when the pressure controller is installed on different models of air conditioner outdoor units to adjust the pressure preset value, the slide rod 191 is slid according to the current model of the air conditioner outdoor unit, for example, if the pressure preset value needs to be increased, Pull the two slide rods 191 upwards, and the sealing plate 19 slides upwards simultaneously to expand the pressure pre-value range within the adjusting cylinder 17. After adjustment, use the limit plate 21 to thread it onto the fixing bracket 2 and the limit plate 21. At this time, the two inserts of the limit plate 21 are inserted into the limit holes of the two slide rods 191, thus limiting the position of the sealing plate 19. If the pressure pre-value needs to be reduced, simply slide the limit sealing plate 19 in the opposite direction. This allows for adaptive adjustment of the pressure pre-value range for different models of air conditioner outdoor units, ensuring the stable use of the pressure controller.

[0025] A fixed ring plate 3 is fixedly connected to the inner wall of the partition cylinder 18; a sealing plate 31 is slidably connected to the inner wall of the partition cylinder 18 and above the fixed ring plate 3, and the sealing plate 31 has two arc grooves; two first elastic elements 32 are fixedly connected to the end faces of the sealing plate 31; when the pressure preset range of the pressure controller is adjusted, the fixed ring plate 3 and the sealing plate 31 are installed in the partition cylinder 18 to realize the control connection between the adjusting cylinder 17 and the connecting pipe 16, thereby reducing the frequency of the ceramic push rod 14 sliding up and down. When the pressure in the adjusting cylinder 17 is too high, the pressure will cause the sealing plate to be blocked. When 31 is lifted, the first elastic element 32 contracts and is subjected to force. At this time, the adjusting cylinder 17 is connected to the connecting pipe 16 through the two arc grooves of the sealing plate 31, and pressure is released into the connecting pipe 16. Only when the pressure in the connecting pipe 16 is too high will the ceramic push rod 14 be lifted to trigger the two contacts of the micro switch 11. When the pressure in the adjusting cylinder 17 is normal, the first elastic element 32 squeezes the sealing plate 31 to fit against the fixed ring plate 3. The fixed ring plate 3 and the sealing plate 31 achieve misalignment and sealing, which plays a role in separating the connecting pipe 16 and the adjusting cylinder 17, and reducing the sliding frequency of the ceramic push rod 14 caused by pressure changes and other factors.

[0026] The inner wall of the separator 18 is provided with an arc-shaped groove 4; an extrusion plate 41 is slidably connected to the inner wall of the separator 18 and below the arc-shaped groove 4; a top rod 42 is fixedly connected to the center of the end face of the extrusion plate 41; two second elastic elements 43 are fixedly connected to the end face of the top rod 42; when separating the connecting pipe 16 and the regulating cylinder 17, the extrusion plate 41, in conjunction with the second elastic elements 43, slides below the fixed ring plate 3. When the pressure inside the regulating cylinder 17 is too high, the extrusion plate 41 can slide upward to compress the two second elastic elements 43 to contract and bear force, while the top rod 42 pushes the sealing plate 31 upward. Gas passes through the arc-shaped groove 4 to the opened fixed ring plate 3, and finally passes through the two arc grooves of the sealing plate 31 into the connecting pipe 16. By adding multiple components at the extrusion plate 41 to control the sliding of the sealing plate 31, the stability of the separation between the connecting pipe 16 and the regulating cylinder 17 at the sealing plate 31 can be guaranteed.

[0027] The top rod 42 is conical in shape; there are two arc-shaped grooves 4, which are arranged opposite to each other; when the top rod 42 slides up and lifts the sealing plate 31 along with the extrusion plate 41, the conical top rod 42 not only provides stable support at the bottom and concentrates the force at the top of the top rod 42 to lift the sealing plate 31, but also reduces the obstruction when the gas passes through the two arc-shaped grooves 4 and enters the fixed ring plate 3, thus ensuring the flow of gas.

[0028] like Figure 1 , Figures 3 to 5As shown, a conduit 6 is fixedly connected to the regulating cylinder 17, and the conduit 6 connects the regulating cylinder 17 and the connecting pipe 16. A solenoid valve 61 is fixedly connected to the conduit 6. When the pressure in the pressure controller is too high, the micro switch 11 on the control ceramic push rod 14 shuts down the compressor. At this time, the solenoid valve 61 is closed, and the connecting pipe 16 and the regulating cylinder 17 are not connected. After the pressure returns to normal, the pressure in the connecting pipe 16 and the regulating cylinder 17 is released, and the solenoid valve 61 is energized and opened. At this time, the connecting pipe 16 and the regulating cylinder 17 are connected, and the pressure in the connecting pipe 16 and the regulating cylinder 17 is released through the conduit 6 to the solenoid valve 61. After the pressure in the connecting pipe 16 and the regulating cylinder 17 is released, the solenoid valve 61 is de-energized and closed again, which plays the role of controlling the pressure release in the connecting pipe 16 and the regulating cylinder 17.

[0029] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the bottom end of the regulating cylinder 17 is fixedly connected to the guide cylinder 7; the guide cylinder 7 is shaped like a horn; when the pressure controller is installed on different models of air conditioner outdoor units, the horn-shaped guide cylinder 7 is first inserted into the high-pressure exhaust pipe. The horn-shaped guide cylinder 7 can be used for the high-pressure exhaust pipe insertion of different models of air conditioner outdoor units. Then, the connection can be welded. The horn mouth serves as a guide for the socket, which increases the welding contact area, significantly extends the weld length, and increases the tensile and shear strength. The flared mouth can compensate for the cutting error of the round tube end face and the axis deviation, reduce the difficulty of assembly, and is suitable for on-site installation and welding; the flared mouth and the round tube form a double sealing path, reducing the risk of leakage caused by welding porosity and shrinkage.

[0030] A thin metal plate 8 is fixedly connected to the bottom end of the guide cylinder 7; a clamp 81 is fixedly connected to the outer wall of the thin metal plate 8; when the flared guide cylinder 7 is inserted into the high-pressure exhaust pipe, a thin metal plate 8 can be added to the bottom end of the guide cylinder 7. The thin metal plate 8 is used to extend the wrapping length of the high-pressure exhaust pipe. After the guide cylinder 7 is fitted onto the high-pressure exhaust pipe, the clamp 81 can be used to tighten it, so that the thin metal plate 8 is tightly attached to the high-pressure exhaust pipe. Then the thin metal plate 8 and the outer wall of the high-pressure exhaust pipe are welded. This pressure controller with a thin metal plate 8 is suitable for air conditioner outdoor units that have been used for a long time, which facilitates subsequent disassembly and maintenance. The clamp 81 can also limit the welding area in advance, so that there is no need to hold the two pipes during the welding process, and the welding area can be welded directly.

[0031] like Figure 1 , Figure 3 and Figure 4As shown, two sealing rings 9 are fixedly attached to the sealing disc 19, and the diameters of the two sealing rings 9 are not equal; the two sealing rings 9 are located on the outer wall and the inner wall of the sealing disc 19, respectively; when the sealing disc 19 slides up and down to adjust the pressure pre-value at the adjusting cylinder 17, the two sealing rings 9 of different diameters are fixed on the inner and outer walls of the sealing disc 19, which can make the sealing disc 19 fit tightly against the inner wall of the adjusting cylinder 17 and the outer wall of the separating cylinder 18, reducing the possibility of gas penetrating into the cavity separated by the sealing disc 19 and causing pressure pre-value error.

[0032] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the interior of the regulating cylinder 17, located below the partition cylinder 18, is a storage chamber. One end of the conduit 6 is fixedly connected to the storage chamber, and the other end of the conduit 6 is fixedly connected to the connecting pipe 16. When gas is introduced into the regulating cylinder 17 through the high-pressure exhaust pipe, the gas will first reach the storage chamber inside the regulating cylinder 17. The size of the storage chamber is controlled by the sliding of the sealing disc 19. The storage chamber is mainly used to control the pressure preset range within the regulating cylinder 17. When depressurizing the connecting pipe 16 and the regulating cylinder 17, the conduit 6 serves as a connection, connecting the storage chamber and the interior of the connecting pipe 16, and depressurizing together from the opened solenoid valve 61.

[0033] Working process: When the pressure controller is installed on the outdoor unit of the air conditioner, the housing 1 serves as the protective structure of the pressure controller. The micro switch 11, plastic part 12, ceramic sleeve 13, ceramic push rod 14, and diaphragm 15 work together to form the core of the pressure controller. When the pressure in the connecting pipe 16 is too high, it pushes up the diaphragm 15 and the ceramic push rod 14, which slides up the inner wall of the ceramic sleeve 13 until the two switch contacts of the micro switch 11 are separated, shutting down the compressor. When the pressure in the connecting pipe 16 is normal, the two switch contacts of the micro switch 11 are in contact, maintaining the normal operation of the compressor. By fixing the ceramic sleeve 13 to the inner wall of the plastic part 12, the pressure of the ceramic push rod 14 on the plastic part 12 due to pressure changes can be reduced. The powder generated by the high-frequency vibration and reciprocating friction of the compressor reduces the probability of powder adhering to the switch contacts and affecting operation, thus ensuring the stability of the entire air conditioning system. When the pressure controller is installed on different models of air conditioning outdoor units, the bottom end of the regulating cylinder 17 is connected to the high-pressure exhaust end of the refrigeration system to detect the exhaust pressure. The connecting pipe 16 is fixed to the top end of the regulating cylinder 17 for connection. According to the current model of the air conditioning outdoor unit, the two sliding rods 191 are adaptively slid, so that the sealing plate 19 slides between the regulating cylinder 17 and the separating cylinder 18, adjusting the pressure pre-value range inside the regulating cylinder 17, expanding or shrinking the maximum pressure pre-value inside the regulating cylinder 17. When the sealing plate 19 slides upward, the pre-value is increased. 9. Slide down to reduce the preset value. After adjustment, fix the slide bar 191 to the limit. After adjusting to the pressure preset value suitable for the current air conditioner outdoor unit, it can reduce material wear caused by frequent sliding friction of the ceramic push rod 14 and reduce the risk of switch contact failure due to powder. Powder contamination needs to be cleaned regularly. By improving the powder grinding at the ceramic push rod 14 and adjusting the pressure preset value, the improvement can reduce the maintenance frequency and labor costs, reduce the need for cleaning, and also adapt to different models of air conditioners, eliminating the need for frequent replacement of parts due to powder problems. The improved pressure controller, through the setting of the ceramic sleeve 13, can reduce frictional resistance, indirectly ensuring control response efficiency and reducing energy consumption from ineffective compressor start-stop. When the pressure controller When adjusting the pressure preset value on different models of air conditioner outdoor units, slide the slide bar 191 according to the model of the current air conditioner outdoor unit. For example, if the pressure preset value needs to be increased, pull the two slide bars 191 upwards. The sealing plate 19 will slide upwards simultaneously to expand the pressure preset value range in the adjusting cylinder 17. After the adjustment is completed, use the limit plate 21 to connect to the fixing bracket 2 and the limit plate 21 with threads. At this time, the two inserts of the limit plate 21 are inserted into the limit holes of the two slide bars 191, which means that the position of the sealing plate 19 is limited. If the pressure preset value needs to be decreased, slide the limit sealing plate 19 in the opposite direction. This can play the role of adaptively adjusting the pressure preset value range for different models of air conditioner outdoor units and ensure the stable use of the pressure controller. When adjusting the pressure preset range of the pressure controller, the fixed ring plate 3 and the sealing plate 31 are installed in the partition cylinder 18 to achieve control communication between the regulating cylinder 17 and the connecting pipe 16, thereby reducing the frequency of the ceramic push rod 14 sliding up and down. When the pressure in the regulating cylinder 17 is too high, the pressure will push up the sealing plate 31, and the first elastic element 32 will contract under force. At this time, the regulating cylinder 17 is connected to the connecting pipe 16 through the two arc grooves of the sealing plate 31, releasing pressure into the connecting pipe 16. Only when the pressure in the connecting pipe 16 is too high will the ceramic push rod 14 be pushed up to trigger the two contacts of the micro switch 11. When the pressure in the regulating cylinder 17 is normal, the first elastic element 32 squeezes the sealing plate 31 to fit against the fixed ring plate 3. The fixed ring plate 3 and the sealing plate 31 achieve misaligned sealing, which plays the role of separating the connecting pipe 16 and the regulating cylinder 17, reducing the frequency of the ceramic push rod 14 sliding due to pressure changes and other factors. When the pressure in the connecting pipe 17 is normal, the first elastic element 32 squeezes the sealing plate 31 to fit against the fixed ring plate 3. The fixed ring plate 3 and the sealing plate 31 achieve misaligned sealing, which plays the role of separating the connecting pipe 16 and the regulating cylinder 17, reducing the frequency of the ceramic push rod 14 sliding due to pressure changes and other factors. When separating the 6 and the regulating cylinder 17, the extrusion plate 41, in conjunction with the second elastic element 43, slides below the fixed ring plate 3. When the pressure inside the regulating cylinder 17 is too high, the extrusion plate 41 can slide upward to compress the two second elastic elements 43, causing them to contract and bear force. The push rod 42 then pushes the sealing plate 31 upward, allowing the gas to pass through the arc groove 4 to reach the opened fixed ring plate 3. Finally, the gas passes through the two arc grooves of the sealing plate 31 and is sent into the connecting pipe 16. By adding multiple components at the extrusion plate 41 to control the sliding of the sealing plate 31, the stability of the sealing plate 31 in separating the connecting pipe 16 and the regulating cylinder 17 can be ensured. When the push rod 42 slides upward with the extrusion plate 41 to push the sealing plate 31, the conical push rod 42 not only provides stable support at the bottom and concentrates the force at the top of the push rod 42 to push the sealing plate 31, but also reduces the obstruction when the gas passes through the two arc grooves 4 and enters the fixed ring plate 3, ensuring the flow of gas. When the pressure in the pressure controller is too high, the micro switch 11 on the control ceramic push rod 14 shuts down the compressor. At this time, the solenoid valve 61 is closed, and the connection pipe 16 and the regulating cylinder 17 are not connected. After the pressure is restored to normal, the pressure in the connection pipe 16 and the regulating cylinder 17 is released, and the solenoid valve 61 is energized and opened. At this time, the connection pipe 16 and the regulating cylinder 17 are connected, and the pressure in the connection pipe 16 and the regulating cylinder 17 is released through the conduit 6 to the solenoid valve 61. After the pressure in the connection pipe 16 and the regulating cylinder 17 is released, the solenoid valve 61 is de-energized and closed again, which plays the role of controlling the pressure release in the connection pipe 16 and the regulating cylinder 17. When the pressure controller is installed on different models of air conditioner outdoor units, the flared guide cylinder 7 is first inserted into the high-pressure exhaust pipe. The flared guide cylinder 7 is suitable for the insertion of high-pressure exhaust pipes of different models of air conditioner outdoor units. Then, the connection can be welded. The flared opening acts as a guide for the socket, increasing the welding contact area, significantly extending the weld length, and resulting in higher tensile and shear strength. The flared opening can compensate for the cutting error of the round pipe end face and the axial deviation, reducing the difficulty of assembly and making it suitable for on-site installation and welding. The flared opening and the round pipe form a double sealing path, reducing the risk of damage during welding. Risk of leakage due to pores and contraction; When the flared guide tube 7 is inserted into the high-pressure exhaust pipe, a thin metal plate 8 can be added to the bottom of the guide tube 7. The thin metal plate 8 is used to extend the wrapping length of the high-pressure exhaust pipe. After the guide tube 7 is fitted onto the high-pressure exhaust pipe, a clamp 81 can be used to tighten it, so that the thin metal plate 8 is tightly attached to the high-pressure exhaust pipe. Then the outer wall of the thin metal plate 8 and the high-pressure exhaust pipe are welded. This pressure controller with a thin metal plate 8 is suitable for air conditioner outdoor units that have been used for a long time, which facilitates subsequent disassembly and maintenance. When the sealing disc 19 slides up and down to adjust the pressure preset value at the regulating cylinder 17, two sealing rings 9 of different diameters are fixed to the inner and outer walls of the sealing disc 19 respectively, which can make the sealing disc 19 fit tightly against the inner wall of the regulating cylinder 17 and the outer wall of the dividing cylinder 18, reducing the possibility of gas penetrating into the cavity divided by the sealing disc 19 and causing pressure preset value error. When gas is introduced into the regulating cylinder 17 through the high-pressure exhaust pipe, the gas first reaches the storage chamber inside the regulating cylinder 17. The size of the storage chamber is controlled by the sliding of the sealing plate 19. The storage chamber is mainly used to control the pressure preset range inside the regulating cylinder 17. When depressurizing the connecting pipe 16 and the regulating cylinder 17, the conduit 6 is used as a connection to connect the storage chamber with the inside of the connecting pipe 16, and depressurize together from the opened solenoid valve 61.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mill improving pressure controller characterized by: The utility model provides a kind of microswitch, including shell;The inner wall of the shell is slidably connected with microswitch, and two switch contacts are arranged on microswitch;The inside of the shell is fixed with plastic piece;The central inner wall of the plastic piece is fixed with porcelain sleeve;The inner wall of the porcelain sleeve is slidably connected with porcelain push rod;The inside of the shell is fixed with diaphragm, and diaphragm is located below porcelain push rod position;The bottom end of the shell is fixed with connecting pipe;The bottom end of the connecting pipe is fixed with adjusting cylinder;The inside of the adjusting cylinder is fixed with separation cylinder;The inner wall of the adjusting cylinder is slidably connected with blocking disc, and blocking disc is located between the inner wall of adjusting cylinder and the outer wall of separation cylinder;The end surface of the blocking disc is fixed with two slide rods.

2. A pressure controller for improved grinding according to claim 1, characterized in that: Limiting hole is formed in the slide rod;The outer wall of the connecting pipe is fixed with fixed frame;The inner wall of the fixed frame is slidably connected with limiting insert plate, and the side close to slide rod of limiting insert plate is fixed with two insert rods, and insert rod corresponds with limiting hole;Screw is threadedly connected on the fixed frame, and screw penetrates limiting insert plate.

3. A pressure controller for improved grinding according to claim 1, wherein: The inner wall of the separation cylinder is fixed with fixed ring plate;The inner wall of the separation cylinder and above fixed ring plate are slidably connected with blocking plate, and two circular arc grooves are formed in the blocking plate;Two first elastic members are fixed on the end surface of the blocking plate.

4. A pressure controller for improved grinding according to claim 3, wherein: Arc-shaped groove is formed in the inner wall of the separation cylinder;The inner wall of the separation cylinder and below arc-shaped groove are slidably connected with extrusion plate;The end surface of the extrusion plate is fixed with top rod;Two second elastic members are fixed on the end surface of the top rod.

5. A pressure controller for improved grinding according to claim 4, wherein: The shape of the top rod is conical columnar;Two arc-shaped grooves are oppositely arranged.

6. A pressure controller for improved grinding according to claim 1, wherein: The adjusting cylinder is fixed with conduit, and conduit can communicate with adjusting cylinder and connecting pipe;Electromagnetic valve is fixed on the conduit.

7. A pressure controller for improved grinding according to claim 1, wherein: The bottom end of the adjusting cylinder is fixed with guide cylinder;The shape of the guide cylinder is horn-shaped.

8. A pressure controller for improved grinding according to claim 7, wherein: The bottom end of the guide cylinder is fixed with metal sheet;The outer wall of the metal sheet is fixed with hoop.

9. A pressure controller for improved grinding according to claim 1, wherein: Two sealing rings are fixed on the blocking disc, and the diameters of the two sealing rings are not equal;Two sealing rings are respectively located on the outer wall and the inner wall of the blocking disc.

10. A pressure controller for improved grinding according to claim 6, wherein: The inside of the adjusting cylinder and below separation cylinder is storage cavity, and one end of conduit is fixed in storage cavity, and the other end of conduit is fixed in connecting pipe.

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