A pressure-maintaining and air-inflating device for valve core ion exchange that is easy to connect

Abstract

The present invention relates to a pressure-maintaining and air-inflating device for valve core ion exchange that is easy to connect, comprising a gas storage tank and a bipolar pressure reducing valve. The pressure-maintaining and air-inflating device is a new application on a continuous ion exchange valve core, which can easily realize the full-automatic pressure maintenance of the continuous ion exchange valve core, reduce the enterprise's consumables cost, and have low maintenance and operation costs, strengthen the manufacturing foundation, and improve product quality. In addition, by setting an inlet of a gas storage tank, the connector can be turned to drive the bellows to bend, and the movable sleeve can be rotated to make the movable sleeve move circumferentially on the connecting pipe, thereby changing the turnover connection direction of the connector, so that it can be connected to hydraulic hoses from different directions, preventing the hydraulic hose from bending at the connection point, affecting normal transmission, and turning the movable rod to the upper right end, so that the positioning wheel 1 and the positioning wheel 2 drive the hydraulic hose to bend to the upper right end, and the hydraulic hose is recovered into the power distribution cabinet, thereby adjusting the length of the hydraulic hose.

Description

Technical Field

[0001] The invention relates to the technical field of pressure-maintaining and air-inflating technology, in particular to a pressure-maintaining and air-inflating device for valve core ion exchange that is easy to connect. Background Art

[0002] The valve core is a valve part that the valve body uses to achieve the basic functions of direction control, pressure control or flow control. The valve core is divided into rotary type (45°, 90°, 180°, 360°) and translation type (radial, facing) according to the movement mode.

[0003] For example, the document with the announcement number CN2348136Y discloses a connecting device between the pressure chamber and the air storage chamber of an air storage type air pump, which can avoid the disadvantage that the sealing performance of the steel ball valve core is easily deteriorated, and the conical upper end of the valve core also has a self-positioning function.

[0004] However, the pressure-maintaining and air-inflating devices for valve core ion exchange currently on the market are usually: through a small nitrogen bottle, the pressure is manually adjusted to continuously supply the valve core pressure; the advantage of this type of equipment is that it is easy to install, but the disadvantage is that nitrogen is a consumable and needs to be replaced regularly, and the cost is relatively high. At the same time, when the gas tank is connected to the air pump, a connecting pipe is required, but due to the change in the installation position of the air pump, the connecting pipe is prone to bending at the connection when connected, which affects the normal delivery of the gas. At the same time, it is in a folded state for a long time, which affects the service life of the connecting pipe. In addition, when the air-inflating device is connected to the valve core, due to the different connection positions, the hydraulic hose is prone to being longer or shorter. If it is longer, the hydraulic hose is prone to bending and entanglement, and if it is shorter, the hydraulic hose is prone to being too straight. Now, such long-term use affects the connection efficiency with the valve core and is not conducive to the air-inflating operation of the valve core. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In order to solve the above technical problems, the present invention provides a pressure-maintaining and air-inflating device for valve core ion exchange which is easy to connect.

[0007] (II) Technical solution

[0008] Based on this, the present invention provides the following technical solutions: a pressure-maintaining and air-inflating device for valve core ion exchange that is easy to connect, comprising a gas storage tank, a bipolar pressure reducing valve, a pressure switch, a pressure sensor, an exhaust ball valve, a gas storage tank inlet, a drain ball valve, a continuous off-exchange valve core, an air pump and an electrical control system, wherein the electrical control system comprises a power distribution cabinet and a PLC master station, an operating system and several PLC substations that are electrically connected to the power distribution cabinet respectively, the power distribution cabinet is used for integrated installation of electrical control components and air-inflating actuators to achieve dustproof and waterproof functions, improve space utilization and ease of operation and maintenance, the control method is a closed-loop control composed of a pressure sensor and a PLC control unit, when the process pressure is less than the set parameter value, the air pump starts to run; when the process pressure is greater than or equal to the set parameter value, the air pump stops running, the air pump is connected to the gas tank inlet on the gas tank by a hydraulic hose, the rear end of the gas tank inlet is connected to the gas tank, and the gas tank Bipolar pressure reducing valves are arranged on the left and right sides of the top of the gas tank, and the bipolar pressure reducing valves are connected to the continuous off-crossing valve core by a hydraulic hose. The bottom of the pressure switch is connected to the gas tank, and a pressure sensor is arranged on the right end of the gas tank. The left end of the exhaust ball valve is connected to the gas tank, and the top of the drain ball valve is connected to the gas tank. A length adjustment mechanism is arranged on the left end of the inside of the power distribution cabinet, and the length adjustment mechanism includes a vertical rod, a moving block, a latch rod, an active rod, a positioning wheel one, a positioning wheel two, a moving plate, and a positioning adjustment mechanism. The top of the vertical rod is fixed to the power distribution cabinet, and the vertical rod is slidably matched with the middle part of the moving block. The latch rod horizontally penetrates the middle part of the moving block, and the latch rod is plugged into the vertical rod. The front end of the moving block is hinged with the active rod, and a positioning adjustment mechanism is arranged on the left side of the front end of the moving plate. The active rod is movably connected to the front ends of the positioning wheel one and the positioning wheel two, respectively, and the positioning wheel one and the positioning wheel two are arranged parallel to each other.

[0009] Preferably, the air pump, air tank and bipolar pressure reducing valve are used for inflating, storing and adjusting the pressure of the system. The pressure switch is a solenoid valve pressure switch used for high-pressure alarm shutdown. The drain ball valve is used for system maintenance and draining and exhausting the air tank. After the air pump is started, it is connected to the air tank through a hydraulic hose to continuously input air into the air tank, which then maintains the air pressure. After the pressure is stabilized by the bipolar pressure reducing valve, compressed air is finally supplied to the continuous de-energizing valve core through the hydraulic hose to achieve the pressure-maintaining sealing function.

[0010] Preferably, the electrical control system inflates the air tank with compressed air through an air pump, and after the air tank adjusts the pressure through a bipolar pressure reducing valve, it continuously supplies air to the continuous clutch valve core to maintain the pressure.

[0011] Preferably, the PLC substation is fixed on the supporting turntable, the PLC master station communicates with each PLC substation via Profibus_DP, the operating system includes an operator station and an engineer station, and the operator station and the engineer station are respectively connected to the PLC master station through an Ethernet switch.

[0012] Preferably, the pressure switch is used for high-pressure alarm, and the air pump is stopped after the alarm, ensuring that the pressure in the air tank will not be too high when the pressure sensor fails or is abnormal.

[0013] Preferably, the gas tank inlet includes a connecting pipe, a rotating block, a movable sleeve, a bellows, a connecting head, and a supporting mechanism. The left end of the connecting pipe is connected to the gas tank, the left end of the movable sleeve is provided with a rotating block, the connecting pipe is communicated with the left end of the movable sleeve, and the connecting pipe is movably connected to the left end of the movable sleeve, the movable sleeve is connected to the left end of the connecting head by a bellows, and the supporting mechanism is provided with two groups, which are respectively installed on the front and rear sides of the movable sleeve and the connecting head.

[0014] Preferably, the positioning adjustment mechanism includes a movable seat, a positioning screw, a handle, a positioning wheel three, a convex rod, and a locking block. The convex rod is embedded in the groove on the left side of the front end of the movable plate, the convex rod cooperates with the inner thread of the locking block, the convex rod is fixed to the left end of the movable seat, the movable seat is movably connected to the middle part of the positioning wheel three, the positioning screw cooperates with the inner thread of the top of the movable seat, and a handle is provided on the top of the positioning screw.

[0015] Preferably, the middle portion of the positioning wheel three is a concave structure, and the surface of the positioning wheel three is smooth.

[0016] Preferably, the supporting mechanism includes a connecting seat 1, a connecting rod 1, a damping shaft, a connecting rod 2, and a connecting seat 2. The rear end of the connecting seat 1 is fixed to the movable sleeve, the rear end of the connecting seat 2 is fixed to the connecting head, the connecting rod 1 is movably connected to the front end of the connecting seat 1, the connecting rod 1 is connected to the left end of the connecting rod 2 by the damping shaft, and the connecting rod 2 is movably connected to the front end of the connecting seat 2.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a valve core ion exchange pressure-maintaining and air-inflating device that is easy to connect, and has the following beneficial effects:

[0019] The new application of the pressure-maintaining and air-inflating device on the continuous ion exchange valve core can easily realize the full-automatic pressure maintenance of the continuous ion exchange valve core, reduce the enterprise's consumables cost, low maintenance and operation cost, strengthen the manufacturing foundation, and improve product quality. In addition, by setting up the air tank inlet, the connector can be turned to drive the bellows to bend, and the movable sleeve can be rotated to make the movable sleeve move in a circumferential manner on the connecting pipe, thereby changing the turnover connection direction of the connector so that it can be connected to the hydraulic hose from different directions to prevent the hydraulic hose from bending at the connection point and affecting normal transmission. The movable rod is turned to the upper right end, so that the positioning wheel one and the positioning wheel two drive the hydraulic hose to bend to the upper right end, and the hydraulic hose is recovered into the distribution cabinet, so as to adjust the length of the hydraulic hose to prevent the hydraulic hose from being too long or too short. The length adjustment mechanism is a flexible adjustment, which can effectively prevent the hydraulic hose from being flattened or folded during adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a connection diagram of various components of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the gas storage tank of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the gas storage tank inlet of the present invention;

[0023] Figure 4 This is a schematic diagram of the bending structure of the gas storage tank inlet of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention;

[0025] Figure 6 It is a front view structural schematic diagram of the length adjustment mechanism of the present invention;

[0026] Figure 7 It is a partial three-dimensional schematic diagram of the length adjustment mechanism of the present invention;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning and adjusting mechanism of the present invention.

[0028] In the figure: gas tank-1, bipolar pressure reducing valve-2, pressure switch-3, pressure sensor-4, exhaust ball valve-5, gas tank inlet-6, drain ball valve-7, continuous decoupling valve core-8, air pump-9, electrical control system-10, length adjustment mechanism-11, connecting pipe-61, rotating block-62, movable sleeve-63, bellows-64, connector-65, support mechanism-66, connecting seat-1-661, connecting rod-1-662 , damping shaft -663, connecting rod two -664, connecting seat two -665, vertical rod -111, moving block -112, latch rod -113, movable rod -114, positioning wheel one -115, positioning wheel two -116, moving plate -117, positioning adjustment mechanism -118, movable seat -1181, positioning screw -1182, handle -1183, positioning wheel three -1184, protruding rod -1185, locking block -1186. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 2A pressure-maintaining and pumping device for ion exchange of a valve core that is easy to connect comprises a gas storage tank 1, a bipolar pressure reducing valve 2, a pressure switch 3, a pressure sensor 4, an exhaust ball valve 5, a gas storage tank inlet 6, a drain ball valve 7, a continuous separation valve core 8, an air pump 9 and an electrical control system 10. The electrical control system 10 comprises a power distribution cabinet and a PLC master station, an operating system and several PLC substations that are electrically connected to the power distribution cabinet respectively. The power distribution cabinet is used for integrating and installing electrical control components and air pumping actuators to achieve dustproof and waterproof functions, improve space utilization and convenience of operation and maintenance, and the control method is controlled by a pressure sensor 4 and a PLC control unit. The elements form a closed-loop control. When the process pressure is less than the set parameter value, the air pump starts running; when the process pressure is greater than or equal to the set parameter value, the air pump stops running. The air pump 9 is connected to the air tank inlet 6 on the air tank 1 by a hydraulic hose. The rear end of the air tank inlet 6 is connected to the air tank 1. Bipolar pressure reducing valves 2 are relatively arranged on the left and right sides of the top of the air tank 1, and the bipolar pressure reducing valve 2 is connected to the continuous decoupling valve core 8 by a hydraulic hose. The bottom of the pressure switch 3 is connected to the air tank 1. A pressure sensor 4 is arranged at the right end of the air tank 1. The left end of the exhaust ball valve 5 is connected to the air tank 1. The top of the ball valve 7 is connected to the air tank 1. The air pump 9, the air tank 1 and the bipolar pressure reducing valve 2 are used for inflating, storing and adjusting the pressure of the system. The pressure switch 3 is a solenoid valve pressure switch used for high-pressure alarm shutdown. The drain ball valve 7 is used for system maintenance and draining and exhausting the air tank 1. After the air pump 9 is turned on, it is connected to the air tank 1 through a hydraulic hose to continuously input air into the air tank 1, and the air is then pressurized by the air tank 1. After the pressure is stabilized by the bipolar pressure reducing valve 2, compressed air is finally supplied to the continuous de-energizing valve core 8 through the hydraulic hose to achieve the pressure-maintaining sealing function. The electrical control system 10 compresses the air through the air pump 9 The air inflates the gas tank 1. After the pressure of the gas tank 1 is adjusted through the bipolar pressure reducing valve 2, the continuous off-off valve core 8 is continuously supplied with air to maintain the pressure. The PLC substation is fixed on the supporting turntable. The PLC main station communicates with each PLC substation through Profibus_DP. The operating system includes an operator station and an engineer station. The operator station and the engineer station are respectively connected to the PLC main station through an Ethernet switch. The pressure switch 3 is used for high-pressure alarm. After the alarm, the air pump is stopped. It is ensured that when the pressure sensor 4 fails or is abnormal, the pressure of the gas tank 1 will not be too high. A length adjustment mechanism 11 is provided at the left end of the inner part of the distribution cabinet.

[0031] See also Figure 3-Figure 4A pressure-maintaining and inflating device for valve core ion exchange that is easy to connect. The gas tank inlet 6 includes a connecting pipe 61, a rotating block 62, a movable sleeve 63, a bellows 64, a connector 65, and a supporting mechanism 66. The left end of the connecting pipe 61 is connected to the gas tank 1, and the left end of the movable sleeve 63 is provided with a rotating block 62. The connecting pipe 61 is communicated with the left end of the movable sleeve 63, and the connecting pipe 61 is movably connected to the left end of the movable sleeve 63. The movable sleeve 63 is connected to the left end of the connector 65 by a bellows 64. There are two groups of supporting mechanisms 66, which are respectively installed on the front and rear sides of the movable sleeve 63 and the connector 65.

[0032] See also Figure 5 A pressure-maintaining and pumping device for valve core ion exchange that is easy to connect, the supporting mechanism 66 includes a connecting seat 1 661, a connecting rod 1 662, a damping shaft 663, a connecting rod 2 664, and a connecting seat 2 665. The rear end of the connecting seat 1 661 is fixed to the movable sleeve 63, the rear end of the connecting seat 2 665 is fixed to the connecting head 65, the connecting rod 1 662 is movably connected to the front end of the connecting seat 1 661, the connecting rod 1 662 is connected to the left end of the connecting rod 2 664 by the damping shaft 663, and the connecting rod 2 664 is movably connected to the front end of the connecting seat 2 665.

[0033] See also Figure 6-Figure 8 A pressure-maintaining and inflating device for valve core ion exchange that is easy to connect, the length adjustment mechanism 11 includes a vertical rod 111, a moving block 112, a latch rod 113, an active rod 114, a positioning wheel 115, a positioning wheel 2 116, a moving plate 117, and a positioning adjustment mechanism 118. The top of the vertical rod 111 is fixed to the power distribution cabinet, the vertical rod 111 is slidably matched with the middle of the moving block 112, the latch rod 113 horizontally penetrates the middle of the moving block 112, and the latch rod 113 is plugged with the vertical rod 111, the front end of the moving block 112 is hinged with the active rod 114, and the moving block 112 is hinged with the active rod 114. A positioning adjustment mechanism 118 is provided on the left side of the front end of the movable plate 117, and the movable rod 114 is movably connected to the front ends of the positioning wheel 1 115 and the positioning wheel 2 116 respectively, and the positioning wheel 1 115 and the positioning wheel 2 116 are arranged parallel to each other. There are two groups of length adjustment mechanisms 11, and the hydraulic hoses on the two groups of bipolar pressure reducing valves 2 respectively pass through the inner sides of the positioning wheels 1 115 and the positioning wheel 2 116 and the positioning wheel 3 1184 on the two groups of length adjustment mechanisms 11 and the inner side of the positioning screw 1182 and are connected to the continuous decoupling valve core 8, and a plurality of groups of plug holes are vertically distributed on the left and right sides of the vertical rod 111.

[0034] In this embodiment, the positioning adjustment mechanism 118 includes a movable seat 1181, a positioning screw 1182, a handle 1183, a positioning wheel 1184, a protruding rod 1185, and a locking block 1186. The protruding rod 1185 is embedded in the groove on the left side of the front end of the movable plate 117. The protruding rod 1185 cooperates with the inner thread of the locking block 1186. By rotating the locking block 1186, the locking block 1186 and the thread on the protruding rod 1185 are transmitted to move toward the rear end of the movable plate 117, so that the locking block 1186 and the rear end of the movable plate 117 are pressed tightly, thereby pressing the movable seat 1181, positioning, and at the same time, the position of the protruding rod 1185 embedded in the movable plate 117 can be adjusted to change the positioning position of the positioning wheel three 1184, the protruding rod 1185 is fixed to the left end of the movable seat 1181, the movable seat 1181 is movably connected to the middle part of the positioning wheel three 1184, the positioning screw 1182 is matched with the inner thread of the top of the movable seat 1181, and the top of the positioning screw 1182 is provided with a handle 1183, the middle part of the positioning wheel three 1184 is a concave structure, and the surface of the positioning wheel three 1184 is smooth. When the liquid is to be adjusted When the length of the hydraulic hose is compressed, the movable rod 114 is pushed toward the upper right end, so that the movable rod 114 drives the positioning wheel 115 and the positioning wheel 2 116 to move toward the upper right end, so that the positioning wheel 115 and the positioning wheel 2 116 drive the hydraulic hose to bend toward the upper right end, and the hydraulic hose is recovered into the power distribution cabinet, so as to adjust the length of the hydraulic hose to prevent the hydraulic hose from being too long or too short, and the length adjustment mechanism 11 is flexible adjustment, which can effectively prevent the hydraulic hose from being flattened or folded during adjustment. After the adjustment is completed, the handle 1183 can be turned clockwise to make the handle 1183 83 drives the positioning screw 1182 to transmit threadedly on the movable seat 1181, so that the positioning screw 1182 moves to the bottom of the movable seat 1181, and cooperates with the positioning wheel three 1184 to position the hydraulic hose, and the latch rod 113 can be pulled out to the right end to release the plug-in state of the latch rod 113 with the vertical rod 111 and the movable block 112, and then the height of the movable block 112 on the vertical rod 111 can be adjusted, and the height of the movable rod 114 can be adjusted, so that the positioning wheel one 115 and the positioning wheel two 116 can press down the hydraulic hose, and the length of the hydraulic hose can be adjusted.

[0035] Embodiment 2: The control scheme of the present invention is as follows: The first step is to set the pressure required for control: set the pressure parameters through the setting window given by the upper computer linked to the PLC controller.

[0036] The second step is to measure the current pressure of the controlled object: use the pressure sensor 4 to detect the current state of the controlled object and convert it into an electrical signal.

[0037] The third step is to compare the current pressure of the controlled object with the set pressure through the PLC controller: compare the current state of the controlled object with the set value, and calculate the difference between the two, also known as the error.

[0038] The fourth step is to determine the control signal: the control signal, also called the manipulated variable, is calculated based on the error.

[0039] The fifth step is to adjust the control signal: the control signal is transmitted to the AC contactor that controls the power supply of the air pump 9, and the air pump is started and stopped by controlling the suction of the AC contactor, so that the pressure of the air tank 1 approaches or reaches the set value.

[0040] In summary, when in use, the control center's total control system sets the required pressure: through the setting window given by the upper computer linked to the PLC controller, the pressure parameters are set, and through the control device cabinet 10 (electrical control system), the AC contactor of the power supply of the air pump 9 is controlled, and the air pump 9 is started and stopped by controlling the suction of the AC contactor, so that the pressure of the gas storage tank 1 approaches or reaches the set value;

[0041] When the electrical system sends a signal to start the air pump 9, the air pump 9 is connected to the air tank inlet 6 through the hydraulic hose to supply air to the air tank 1, and then the air tank 1 supplies air to the continuous de-energizing valve core 8 through the bipolar pressure reducing valve 2 to maintain the pressure to meet the requirements of relevant industrial standards.

[0042] The electrical equipment for gas supply and pressure maintenance on continuous ion exchange equipment is automated to achieve the purpose of automated production and monitoring. The equipment control system can be started with one button, and the production, maintenance and operation costs are low.

[0043] Before use, the connector 65 can be moved to make the connector 65 drive the bellows 64 to bend. Figure 4 As shown, during the bending process of the bellows 64, the connecting rod 1 662 and the connecting rod 2 664 will rotate on the connecting seat 1 661 and the connecting seat 2 665 respectively, and at the same time, the connecting rod 1 662 and the connecting rod 2 664 will rotate around the damping shaft 663, forming an angle between them, supporting the bellows 64, thereby changing the connection angle of the connecting head 65, and making the movable sleeve 63 move circumferentially on the connecting pipe 61, thereby changing the rotation connection direction of the connecting head 65 so that it can be connected to the hydraulic hoses from different directions, preventing the hydraulic hose connection from bending and affecting normal transmission.

[0044] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0045] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-maintaining and pumping device for valve core ion exchange that is easy to connect, characterized in that: It includes a pressure switch (3), an exhaust ball valve (5), an air storage tank inlet (6), a drain ball valve (7), a continuous decoupling valve core (8), an air pump (9) and an electrical control system (10); The electrical control system (10) comprises a power distribution cabinet and a PLC master station, an operating system and a PLC substation electrically connected to the power distribution cabinet respectively. The power distribution cabinet is used for integrated installation of electrical control components and air pumping actuators. The air pump (9) is connected to the air tank inlet (6) on the air tank (1) by a hydraulic hose. The rear end of the air tank inlet (6) is connected to the air tank (1). Bipolar pressure reducing valves (2) are arranged on the left and right sides of the top of the air tank (1) in a manner opposite to each other, and the bipolar pressure reducing valve (2) is connected to the continuous decoupling valve core (8) by a hydraulic hose. The bottom of the pressure switch (3) is connected to the gas tank (1), the right end of the gas tank (1) is provided with a pressure sensor (4), the left end of the exhaust ball valve (5) is connected to the gas tank (1), the top of the drain ball valve (7) is connected to the gas tank (1), and the left end of the inside of the power distribution cabinet is provided with a length adjustment mechanism (11); The length adjustment mechanism (11) comprises a vertical rod (111), a moving block (112), a latch rod (113), a movable rod (114), a first positioning wheel (115), a second positioning wheel (116), a moving plate (117), and a positioning adjustment mechanism (118); the top of the vertical rod (111) is fixed to the power distribution cabinet; the vertical rod (111) is slidably matched with the middle of the moving block (112); the latch rod (113) horizontally penetrates the middle of the moving block (112), and the latch rod (113) is plugged into the vertical rod (111); the front end of the moving block (112) is hinged to the movable rod (114); and the positioning adjustment mechanism (118) is arranged on the left side of the front end of the moving plate (117).

2. A valve core ion exchange pressure-maintaining and inflating device that is easy to connect according to claim 1, characterized in that: The air pump (9), air storage tank (1) and bipolar pressure reducing valve (2) are used for inflating, storing and adjusting the pressure of the system; the pressure switch (3) is a solenoid valve pressure switch used for high pressure alarm shutdown; the drainage ball valve (7) is used for system maintenance and drainage and exhaust of the air storage tank (1); the movable rod (114) is movably connected to the front ends of the first positioning wheel (115) and the second positioning wheel (116), respectively, and the first positioning wheel (115) and the second positioning wheel (116) are arranged parallel to each other.

3. The easily connectable valve core ion exchange pressure-maintaining and inflating device according to claim 1, characterized in that: The electrical control system (10) compresses air to inflate the air storage tank (1) through the air pump (9), and after the air storage tank (1) has adjusted the pressure through the bipolar pressure reducing valve (2), it continuously supplies air to the continuous clutch valve core (8) to maintain the pressure.

4. The easily connectable valve core ion exchange pressure-maintaining and air-inflating device according to claim 1, characterized in that: The PLC substations are fixed on the supporting turntable, the PLC master station communicates with each PLC substation via Profibus_DP, the operating system includes an operator station and an engineer station, and the operator station and the engineer station are respectively connected to the PLC master station via an Ethernet switch.

5. The easily connectable valve core ion exchange pressure-maintaining and air-inflating device according to claim 1, characterized in that: The pressure switch (3) is used for high pressure alarm, and the air pump stops running after the alarm is triggered.

6. The easily connectable valve core ion exchange pressure-maintaining and air-inflating device according to claim 1, characterized in that: The gas storage tank inlet (6) comprises a connecting pipe (61), a rotating block (62), a movable sleeve (63), a bellows (64), a connector (65), and a supporting mechanism (66). The left end of the connecting pipe (61) is connected to the gas storage tank (1). The left end of the movable sleeve (63) is provided with a rotating block (62). The connecting pipe (61) is communicated with the left end of the movable sleeve (63), and the connecting pipe (61) and the left end of the movable sleeve (63) are movably connected. The movable sleeve (63) is connected to the left end of the connector (65) by means of a bellows (64). Two groups of the supporting mechanism (66) are provided, which are respectively installed on the front and rear sides of the movable sleeve (63) and the connector (65).

7. The easily connectable valve core ion exchange pressure-maintaining and air-inflating device according to claim 6, characterized in that: The support mechanism (66) comprises a connecting seat 1 (661), a connecting rod 1 (662), a damping shaft (663), a connecting rod 2 (664), and a connecting seat 2 (665). The rear end of the connecting seat 1 (661) is fixed to the movable sleeve (63), the rear end of the connecting seat 2 (665) is fixed to the connecting head (65), the connecting rod 1 (662) is movably connected to the front end of the connecting seat 1 (661), the connecting rod 1 (662) is connected to the left end of the connecting rod 2 (664) by means of the damping shaft (663), and the connecting rod 2 (664) is movably connected to the front end of the connecting seat 2 (665).

8. The easily connectable valve core ion exchange pressure-maintaining and air-inflating device according to claim 1, characterized in that: The positioning adjustment mechanism (118) comprises a movable seat (1181), a positioning screw (1182), a handle (1183), a positioning wheel three (1184), a protruding rod (1185), and a locking block (1186); the protruding rod (1185) is embedded in a groove on the left side of the front end of the movable plate (117); the protruding rod (1185) cooperates with the inner thread of the locking block (1186); the protruding rod (1185) is fixed to the left end of the movable seat (1181); the movable seat (1181) is movably connected to the middle part of the positioning wheel three (1184); the positioning screw (1182) cooperates with the inner thread of the top of the movable seat (1181); and a handle (1183) is provided on the top of the positioning screw (1182).

9. The easily connectable valve core ion exchange pressure-maintaining and air-inflating device according to claim 8, characterized in that: The middle portion of the positioning wheel three (1184) is a concave structure, and the surface of the positioning wheel three (1184) is smooth.

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