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CN-122014574-A - Air switching valve for diaphragm pump

CN122014574ACN 122014574 ACN122014574 ACN 122014574ACN-122014574-A

Abstract

The invention relates to the technical field of air switching valves, in particular to an air switching valve for a diaphragm pump, which comprises a switching mechanism and a sealing mechanism, wherein the filtering mechanism is arranged at the bottom of the switching mechanism, the rear side of the sealing mechanism is provided with a switching valve body, the switching mechanism comprises an air regulating component, an air control component, a switch component, an adjusting component and a filtering component, the air control component is arranged on the surface of the air regulating component, the switch component is arranged on the inner side of the air control component, the adjusting component is arranged at the bottom of the switch component, the filtering component is arranged at the bottom of the adjusting component, and the sealing mechanism comprises an indicating component, a pressure component, a sealing component and a conveying component. The invention provides an air switching valve for a diaphragm pump, which has a filtering adjusting structure using a common power source with a pneumatic pump, so that the filtering mode can be quickly adjusted in an environment where a motor cannot be used as the power source, and the flexibility of filtering air fed into the switching valve is improved.

Inventors

  • LIU XIAOQIANG
  • LIU JUN
  • LIU AI

Assignees

  • 苏州美思康科技有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (10)

  1. 1. The air switching valve for the diaphragm pump comprises a switching mechanism (1) and a closing mechanism (2), and is characterized in that the filtering mechanism (2) is arranged at the bottom of the switching mechanism (1), the rear side of the closing mechanism (2) is provided with a switching valve body (3), the switching mechanism (1) comprises an air regulating component (11), an air regulating component (12), a switch component (13), an adjusting component (14) and a filtering component (15), the air regulating component (12) is arranged on the surface of the air regulating component (11), the switch component (13) is arranged on the inner side of the air regulating component (12), the adjusting component (14) is arranged at the bottom of the switch component (13), the filtering component (15) is arranged at the bottom of the adjusting component (14), the closing mechanism (2) comprises an indicating component (21), a pressure component (22), a sealing component (23) and a conveying component (24), the indicating component (21) is arranged at the bottom of the air regulating component (12), the pressure component (22) is arranged at the bottom of the indicating component (21), and the sealing component (23) is arranged at the bottom of the sealing component (23).
  2. 2. The air switching valve for the diaphragm pump, as set forth in claim 1, characterized in that the air regulating assembly (11) comprises a sealing ring sleeve (111), a sealing ring sleeve (112) and an adjusting air valve (113), wherein the sealing ring sleeve (112) is connected to the bottom of the sealing ring sleeve (111) through bolts, and the adjusting air valve (113) is communicated to the front side of the sealing ring sleeve (111).
  3. 3. The air switching valve for the diaphragm pump, as set forth in claim 2, characterized in that the air control assembly (12) comprises a top air chamber cover (121), a T-shaped separating cylinder (122) and a return spring (123), wherein the top air chamber cover (121) is connected to the top of the sealing ring sleeve (111) through bolts, the T-shaped separating cylinder (122) is connected to the bottom of the sealing ring sleeve (112) through bolts, and the return spring (123) is connected to the bottom of the inner side of the T-shaped separating cylinder (122) through bolts.
  4. 4. An air switching valve for a diaphragm pump according to claim 3, wherein the switch assembly (13) comprises an upper diaphragm (131), a guide rod (132) and a valve seat (133), the upper diaphragm (131) is connected to the bottom of the top-layer air chamber cover (121) in a bolt manner, the bottom of the upper diaphragm (131) is connected to the top of the closed loop (111) in a bolt manner, the guide rod (132) is connected to the bottom of the upper diaphragm (131) in a bolt manner, and the valve seat (133) is connected to the bottom of the guide rod (132) in a bolt manner.
  5. 5. An air switching valve for a diaphragm pump according to claim 4, wherein the regulating member (14) comprises a lower diaphragm (141), a supporting plate (142) and a return spring (143), the lower diaphragm (141) is bolted to the bottom of the seal ring (112), the bottom of the lower diaphragm (141) is bolted to the top of the T-shaped separating cylinder (122), the supporting plate (142) is bolted to the top of the lower diaphragm (141), the return spring (143) is bolted to the top of the supporting plate (142), and the top of the return spring (143) is in contact with the bottom of the upper diaphragm (131).
  6. 6. The air switching valve for a diaphragm pump according to claim 5, wherein the filter assembly (15) comprises a hollow slide rod (151), a sealing ring (152) and a funnel filter screen (153), the hollow slide rod (151) is connected to the bottom of the supporting disc (142) in a bolt mode, the sealing ring (152) is connected to the bottom of the hollow slide rod (151) in a bolt mode, the funnel filter screen (153) is connected to the bottom of the hollow slide rod (151) in a bolt mode, the inner side of the hollow slide rod (151) is in contact with the surface of the guide rod (132), and the inner side of the funnel filter screen (153) is in contact with the surface of the valve seat (133).
  7. 7. The air switching valve for the diaphragm pump according to claim 6, wherein the indicating assembly (21) comprises a movable tube (211), a glass window (212) and an indicator (213), the movable tube (211) is communicated with the bottom of the T-shaped separating tube (122), the glass window (212) is fixedly connected to the surface of the movable tube (211), the indicator (213) is connected to the surface of the guide rod (132) through a bolt, and the surface of the indicator (213) penetrates through the surface of the hollow sliding rod (151) and is in sliding connection with the hollow sliding rod (151).
  8. 8. The air switching valve for the diaphragm pump, as set forth in claim 7, characterized in that the pressure assembly (22) comprises an air pressure pipe (221), an air extraction valve (222) and a supplement cover (223), the air pressure pipe (221) is communicated with the bottom of the movable pipe (211), the air extraction valve (222) is communicated with the surface of the air pressure pipe (221), and the supplement cover (223) is clamped at the input end of the air extraction valve (222).
  9. 9. The air switching valve for the diaphragm pump according to claim 8, wherein the sealing assembly (23) comprises an air bag (231), a sealing ring (232) and a sealing plate (233), the air bag (231) is clamped at the bottom of the inner side of the air pressure pipe (221), the sealing ring (232) is connected at the bottom of the air bag (231) through bolts, and the sealing plate (233) is clamped at the top of the air bag (231).
  10. 10. The air switching valve for the diaphragm pump, as set forth in claim 9, wherein the conveying assembly (24) comprises an air inlet pipe (241), a partition plate (242) and a round table air port (243), the air inlet pipe (241) is communicated with the bottom of the air pressure pipe (221), the top of the air inlet pipe (241) is in contact with the bottom of the air bag (231), the partition plate (242) is welded on the inner side of the air inlet pipe (241), the round table air port (243) is formed on the top of the partition plate (242), and the inner side of the round table air port (243) is in contact with the bottom of the surface of the funnel filter screen (153).

Description

Air switching valve for diaphragm pump Technical Field The invention relates to the technical field of air switching valves, in particular to an air switching valve for a diaphragm pump. Background As is well known, the air switching valve for the diaphragm pump is a core air path control component which is matched with the diaphragm pump, realizes automatic switching of air paths by means of a pneumatic driving principle, drives a diaphragm of the diaphragm pump to do reciprocating motion by controlling the inlet and outlet directions of compressed air, further provides power for a medium to be conveyed by the diaphragm pump, is used as a key component of an air path system of the diaphragm pump, directly connects a compressed air source with an execution end of the diaphragm pump, ensures smoothness of air path switching of the diaphragm pump and continuity of operation of a pump body, and is an important matching device for realizing a medium conveying function of the diaphragm pump. According to the technical scheme, the Chinese patent discloses a powerful switching valve, the application publication number of the powerful switching valve is CN110529625B, the powerful switching valve comprises a movable cylinder and a fixed seat, the movable cylinder is arranged at the upper end of the fixed seat, a shell is arranged on the outer wall of the lower end of the fixed seat, a fixed hole is arranged on the outer wall of the front end of the shell, a connecting pipe is arranged on the outer wall of the right end of the shell, a fixed ring is arranged on the outer wall of the lower end of the shell, a downward extending feeding port is arranged on the circumferential outer wall of the lower end of the fixed ring, one end of the switching valve is connected with an air inlet and an air outlet of an air blower through two connecting pipes, the air blower provides powerful suction for the switching valve, the movable cylinder at the upper end of the switching valve is used for controlling the lifting of a movable rod in the switching valve, the suction of the hollow switching valve can be sucked and released through the action of the movable cylinder, the problem that the hollow switching valve cannot be sucked is solved, and the production conveying efficiency of the product is greatly improved. When the air path of the air input by the diaphragm pump is switched, the air path is switched by means of automatic adjustment of the switching valve, so that the normal operation of the diaphragm pump is realized, and the problem in the prior art is that when the input air is filtered, the filtering mode cannot be quickly adjusted in an environment in which a motor cannot be used as a power source due to the lack of a filtering adjusting structure which uses a common power source with the pneumatic pump, so that the flexibility when the air fed into the switching valve is filtered is reduced. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides the air switching valve for the diaphragm pump, which has a filtering adjusting structure using a common power source with the pneumatic pump, so that the filtering mode can be quickly adjusted in an environment in which a motor cannot be used as the power source, and the advantage of flexibility in filtering air fed into the switching valve is improved. (II) technical scheme The technical aim of the invention is achieved by the following technical scheme that the air switching valve for the diaphragm pump comprises a switching mechanism and a sealing mechanism, wherein the filtering mechanism is arranged at the bottom of the switching mechanism, the rear side of the sealing mechanism is provided with a switching valve body, the switching mechanism comprises an air regulating component, an air controlling component, a switch component, an adjusting component and a filtering component, the air controlling component is arranged on the surface of the air regulating component, the switch component is arranged at the inner side of the air controlling component, the adjusting component is arranged at the bottom of the switch component, the filtering component is arranged at the bottom of the adjusting component, the sealing mechanism comprises an indicating component, a pressure component, a sealing component and a conveying component, the indicating component is arranged at the bottom of the air controlling component, the pressure component is arranged at the bottom of the indicating component, the sealing component is arranged at the inner side of the pressure component, and the conveying component is arranged at the bottom of the sealing component. By adopting the technical scheme, through setting up shifter and closing mechanism, shifter is the structure to the interior gas circuit control of closing mechanism, can control the gas circuit velocity of flow, also can filter impurity in the air, and closing mechan