Electronic-grade pneumatic pump based on high cleanliness and assembling method thereof

Abstract

The invention relates to the technical field of electronic-grade pneumatic pumps, in particular to an electronic-grade pneumatic pump based on high cleanliness and an assembling method thereof.The electronic-grade pneumatic pump comprises an electronic-grade pneumatic pump body and ventilation assemblies, the left side and the right side of the electronic-grade pneumatic pump body are fixedly connected with the ventilation assemblies, and the inner sides of the ventilation assemblies are slidably connected with moving assemblies; a first pump core assembly is fixedly connected to the upper end of the electronic-grade pneumatic pump body, a liquid outlet pipe is installed on the inner side of the first pump core assembly, a second pump core assembly is fixedly connected to the front end of the electronic-grade pneumatic pump body, a cone block is installed on the inner side of the second pump core assembly, and a liquid inlet pipe is fixedly connected to the front end of the cone block. According to the electronic-grade pneumatic pump, the situation that the connecting position of the liquid inlet pipe and the pump core falls off due to vibration generated when the pump core electronic-grade pneumatic pump body works is effectively prevented, and the connecting stability and continuous operation of the electronic-grade pneumatic pump body are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electronic-grade pneumatic pumps, in particular to an electronic-grade pneumatic pump based on high cleanliness and an assembly method thereof. Background Art

[0002] Electronic-grade pneumatic pump is a pneumatic double diaphragm pump designed for high-tech electronics and highly corrosive media. It is usually made of all plastic materials, including PTFE, conductive PTFE, PE, conductive PE, SS self-locking wheel 6L, etc. This pump is very suitable for use in high-pollution, high-risk, strong acid, low-noise and clean room working environments, especially in high-tech industries such as printed circuit boards, semiconductors, packaging and optoelectronics. The application of electronic-grade pneumatic pumps in semiconductor device processing is to meet the requirements of high precision and anti-pollution. In order to ensure that the medium is not contaminated, the electronic-grade pneumatic pump is designed not to contain any metal liquid-contacting parts, thereby avoiding the contamination of metal ions. Due to the continuous impact of the liquid, the connection between the inlet pipe, the outlet pipe and the pump core is prone to fall off, which will cause leakage problems. This situation not only affects the production efficiency, but also reduces the overall production efficiency. At the same time, due to the short service life of the pneumatic pump, it increases the production cost. In order to solve these problems, the prior art connects the inlet pipe and the outlet pipe to the pump core through a spiral connection, but this method has certain disadvantages. The electronic-grade pneumatic pump will vibrate during operation, and the bolt connection cannot completely eliminate the vibration of the connection. Long-term operation may cause the connection parts to loosen, increase noise and vibration, and affect the stability and service life of the pump. Therefore, in response to the above problems, an electronic-grade pneumatic pump based on high cleanliness and an assembly method thereof are proposed. Summary of the invention

[0003] The purpose of the present invention is to provide an electronic-grade pneumatic pump based on high cleanliness and an assembly method thereof, so as to solve the problem that the prior art connects the liquid inlet pipe and the liquid outlet pipe to the pump core by means of a spiral connection. However, this method has certain disadvantages. The electronic-grade pneumatic pump will vibrate during operation, and the bolt connection cannot completely eliminate the vibration at the connection. Long-term operation may cause the connection to loosen.

[0004] To achieve the above object, the present invention provides the following technical solutions: An electronic-grade pneumatic pump based on high cleanliness and an assembly method thereof include an electronic-grade pneumatic pump body and a ventilation component, wherein the left and right sides of the electronic-grade pneumatic pump body are fixedly connected with ventilation components, and the inner side of the ventilation component is slidably connected with a moving component, the upper end of the electronic-grade pneumatic pump body is fixedly connected with a first pump core component, and a liquid outlet pipe is installed on the inner side of the first pump core component, the front end of the electronic-grade pneumatic pump body is fixedly connected with a second pump core component, and a cone block is installed on the inner side of the second pump core component, and the front end of the cone block is fixedly connected with a liquid inlet pipe, and the ventilation component includes an outer shell, and a fixed pipe groove is provided on the inner side of the outer shell, and a storage groove is provided on the inner side of the lower end of the outer shell, and a multi-way metal pipe is fixedly connected to the inner side of the fixed pipe groove provided by the outer shell, and a connecting folded pipe is fixedly connected to one side of the multi-way metal pipe, and an air pump is fixedly connected to one side of the connecting folded pipe, and an electromagnetic The valve is provided with a second pump core assembly, the second pump core assembly comprises a core shell, an outer convex block is fixedly connected to the outer side of the core shell, a stamping column hole is provided on the inner side of the outer convex block, the inner side of the stamping column hole is fitted with the outer side of the second rubber plug, a guide rod is fixedly connected to one side of the second rubber plug, a curved push plate is fixedly connected to one side of the guide rod, a guide groove is provided on the inner side of the core shell, a pump core device is fixedly connected to the inner side of the core shell, the pump core device comprises a pump core block, a flow hole is provided on the inner side of the pump core block, a sealing air bag is fixedly connected to one side of the pump core block, a piston path is provided on the inner side of the pump core block, the inner side of the piston path provided by the pump core block is fitted with the outer side of the first rubber plug, a second spring is fixedly connected to one side of the first rubber plug, a limiting stopper rod is fixedly connected to one side of the piston path provided by the pump core block, a constant pressure hole is provided on the inner side of the pump core block, a filter block is fixedly connected to the inner side of the constant pressure hole, and a fixed pipe block is fixedly connected to the outer side of the core shell.

[0005] As a further optimization of the present invention, the moving component includes a self-locking wheel, the top of the self-locking wheel is fixedly connected to a foot seat, the top of the foot seat is welded and fixedly connected to a shock absorbing component, and the outer side of the shock absorbing component is fixedly connected to a rectangular rail plate.

[0006] As further optimized content of the present invention, the top end of the rectangular rail plate is fixedly connected to the top end of the storage groove opened in the outer shell, the shape of the rectangular rail plate is a rectangular body, the rectangular rail plate is fixedly connected to the left and right sides of the shock absorbing assembly, the inner side of the outer shell close to the rectangular rail plate is provided with a slideway, and the shock absorbing assembly is slidably connected to the inner side of the slideway of the outer shell through the rectangular rail plate.

[0007] As further optimized content of the present invention, the shock absorbing assembly includes a movable shell, a buffer groove is opened on the inner side of the movable shell, a double-column guide rod is slidably connected to the inner side of the movable shell, a rubber ring is fixedly connected to the outer side of the lower end of the double-column guide rod, a damping air channel is opened on the inner side of the double-column guide rod, a first spring is fixedly connected to one side of the double-column guide rod, and the top end of the first spring is fixedly connected to the upper end of the buffer groove.

[0008] As further optimized content of the present invention, wherein: the damping air duct is connected with the inside of the buffer groove, the outer side of the rubber ring is fitted with the inner side of the buffer groove, the double-column guide rod is shaped as two sections of a cylinder, the bottom end of the movable shell is fixedly connected to the top end of the buffer groove, the opening shape of the buffer groove is two sections of a cylinder, and the buffer groove runs through the upper end of the movable shell.

[0009] As further optimized content of the present invention, the left and right sides of the electronic-grade pneumatic pump body are fixedly connected with an outer shell, the storage groove runs through the lower end of the outer shell, one side of the air pump is fixedly connected to one side of the electronic-grade pneumatic pump body, the air outlet of the air pump is connected to the inner side of the connecting folded tube, the inner side of the multi-way metal tube is hollow, the connecting folded tube is connected to the inside of the damping airway through the multi-way metal tube, and the top end of the double-column guide rod is fixedly connected to the inner side of the storage groove close to the multi-way metal tube.

[0010] As a further optimization of the present invention, one end of the multi-way metal tube is fixedly connected to the inner side of the fixed tube block, a mounting hole is provided on the inner side of the fixed tube block near the multi-way metal tube, one end of the multi-way metal tube is fixedly connected to the outer side of the pump core block near the constant pressure hole, and the inner side of the multi-way metal tube is connected to the inside of the constant pressure hole.

[0011] As a further optimization of the present invention, one side of the core shell is fixedly connected to the front end of the electronic-grade pneumatic pump body, the internal structure of the second pump core assembly is the same as the internal structure of the first pump core assembly, and a cone block is fixed on one side of the liquid inlet pipe and the liquid outlet pipe.

[0012] As further optimized content of the present invention, the outer side of the pump core block is fixedly connected to the inner side of the core shell, the front end of the sealing airbag is tightly attached to the rear end of the cone block, the inner side of the constant pressure hole is connected to one end of the piston channel, one side of the first rubber plug is fixedly connected to one end of the second spring, the inside of the sealing airbag is hollow, and the inner side of the sealing airbag is connected to one end of the piston channel.

[0013] Assembly method of electronic grade pneumatic pump based on high cleanliness, S1: During the quick connection process between the liquid outlet pipe and the liquid inlet pipe and the pump core of the electronic-grade pneumatic pump body, the cone block fixed to the liquid inlet pipe is inserted from the inner side of the front end of the core shell, and the connection method between the liquid outlet pipe and the first pump core assembly is the same as the connection method between the liquid inlet pipe and the second pump core assembly. The air pump is started and the solenoid valve is opened at the same time. The air pump transports gas to the inside of the connecting folded pipe and the multi-way metal pipe. The air inside the multi-way metal pipe enters the inside of the stamping column hole from the outer convex block, pushing the second rubber plug, the guide rod and the arc push plate to move at the same time. The guide rod and the arc push plate slide on the inner side of the guide groove. After one end of the arc push plate is fitted with the outer side of the liquid inlet pipe, the rear end of the arc push plate is also fitted with the front end of the cone block. When the solenoid valve is closed, the arc push plate is limited. S2: The cone block moves toward the pump core device, and the cone block squeezes the sealing airbag. At this time, the sealing airbag is deformed, and the air inside the sealing airbag enters the piston channel. The pump core device pushes the second spring to elastically contract. After the rear end of the first rubber plug fits with the front end of the limit stopper rod, the elastic force of the second spring keeps the sealing airbag in close contact with the rear end of the cone block. S3: The multi-way metal tube fills the inside of the stamping column hole with gas and also fills the inside of the damping air channel with gas. The movable shell moves downward, and the rectangular rail plate fixed on the outside of the movable shell is slidably connected to the inner side of the receiving groove. The movable shell moves downward to squeeze the first spring, the solenoid valve is closed, the air pump stops, and the electronic-grade pneumatic pump body drives the double-column guide rod to slide inside the buffer groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by providing the air pump, multi-way metal tube, core shell, second rubber plug and arc-shaped push plate, the device improves the convenience of installation between the liquid inlet pipe and the second pump core assembly through the sealing cooperation between the conical cone block and the pump core device, and effectively prevents the connection between the liquid inlet pipe and the second pump core assembly from falling off due to the vibration generated when the pump core electronic-grade pneumatic pump body is working, ensuring the stability of the connection and the continuous operation of the electronic-grade pneumatic pump body, and avoiding the influence on stability and service life that may be caused by the traditional bolt connection method; 2. In the present invention, by providing the pump core block, the sealing airbag, the first rubber plug and the second spring, when the pump core electronic-grade pneumatic pump body is running, the sealing airbag pushes the flow of gas and the elastic contraction of the second spring, thereby enhancing the sealing performance between the liquid inlet pipe and the second pump core assembly, effectively preventing the degradation of sealing performance and liquid leakage caused by vibration, protecting the pump core electronic-grade pneumatic pump body from damage caused by liquid leakage, and improving the reliability and safety of the pump; 3. In the present invention, by providing a movable shell, a double-column guide rod, a first spring and a rubber ring, when the pump core electronic-grade pneumatic pump body moves or runs, the air pressure expansion generated by the gas filled inside the stamping column hole and the damping airway is generated by the multi-way metal tube, and the structural design of the double-column guide rod and the first spring is utilized to effectively reduce the vibration generated by the electronic-grade pneumatic pump body during operation and the impact on the ground, thereby protecting the stability of the internal accessories and improving the service life and working efficiency of the pump core electronic-grade pneumatic pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer shell structure of the present invention; Figure 3 This is a schematic diagram of the structure of a multi-pass metal tube of the present invention; Figure 4 It is a schematic diagram of the structure of the air pump of the present invention; Figure 5 This is a schematic diagram of the connecting folded pipe structure of the present invention; Figure 6 This is a schematic diagram of the cone block structure of the present invention; Figure 7 It is a schematic diagram of the structure of the pump core device of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure at A; Fig. 9 This is a schematic diagram of the pump core block structure of the present invention; Fig.10 This is a schematic diagram of the self-locking wheel structure of the present invention; Fig.11 It is a schematic diagram of the double-column guide rod structure of the present invention.

[0016] In the figure: 1. Electronic grade pneumatic pump body; 2. Ventilation assembly; 21. External shell; 22. Pipe fixing groove; 23. Storage groove; 24. Multi-way metal pipe; 25. Connecting folded pipe; 26. Air pump; 27. Solenoid valve; 3. Moving assembly; 31. Self-locking wheel; 32. Footrest; 33. Shock-absorbing assembly; 331. Movable shell; 332. Buffer groove; 333. Double-column guide rod; 334. Rubber ring; 335. Damping air channel; 336. First spring; 34. Rectangular track plate; 4. The first pump core assembly; 5. Second pump core assembly; 51. Core shell; 52. External convex block; 53. Stamping column hole; 54. Second rubber plug; 55. Guide rod; 56. Guide groove; 57. Arc push plate; 58. Pump core device; 581. Pump core block; 582. Flow hole; 583. Sealing airbag; 584. Piston channel; 585. First rubber plug; 586. Second spring; 587. Limit stopper; 588. Constant pressure hole; 589. Filter block; 59. Fixed pipe block; 6. Liquid inlet pipe; 7. Liquid outlet pipe; 8. Conical block. DETAILED DESCRIPTION

[0017] 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.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0019] See also Figure 1-11 , the present invention provides a technical solution: An electronic-grade pneumatic pump based on high cleanliness and an assembly method thereof include an electronic-grade pneumatic pump body 1 and a ventilation component 2, the ventilation component 2 is fixedly connected to the left and right sides of the electronic-grade pneumatic pump body 1, a moving component 3 is slidably connected to the inner side of the ventilation component 2, a first pump core component 4 is fixedly connected to the upper end of the electronic-grade pneumatic pump body 1, a liquid outlet pipe 7 is installed inside the first pump core component 4, a second pump core component 5 is fixedly connected to the front end of the electronic-grade pneumatic pump body 1, a cone block 8 is installed inside the second pump core component 5, and a cone The front end of the block 8 is fixedly connected to the liquid inlet pipe 6, the ventilation component 2 includes an outer shell 21, the inner side of the outer shell 21 is provided with a fixed pipe groove 22, the inner side of the lower end of the outer shell 21 is provided with a storage groove 23, the inner side of the fixed pipe groove 22 provided by the outer shell 21 is fixedly connected with a multi-way metal tube 24, one side of the multi-way metal tube 24 is fixedly connected with a connecting folded tube 25, one side of the connecting folded tube 25 is fixedly connected with an air pump 26, and the inner side of the connecting folded tube 25 is installed with an electromagnetic valve 27, the second pump core component 5 includes a core shell 51, the outer side of the core shell 51 is provided with a receiving groove 23, the inner side of the fixed pipe groove 22 provided by the outer shell 21 is fixedly connected with a multi-way metal tube 24, the one side of the multi-way metal tube 24 is fixedly connected with a connecting folded tube 25, the one side of the connecting folded tube 25 is fixedly connected with an air pump 26, and the inner side of the connecting folded tube 25 is provided with a solenoid valve 27, the second pump core component 5 includes a core shell 51, the outer side of the core shell 51 is provided with a receiving groove 23, the inner side of the fixed pipe groove 22 provided by the outer shell 2 ... The outer convex block 52 is fixedly connected to the side, and a stamping column hole 53 is opened inside the outer convex block 52. The inner side of the stamping column hole 53 is in contact with the outer side of the second rubber plug 54. A guide rod 55 is fixedly connected to one side of the second rubber plug 54. An arc-shaped push plate 57 is fixedly connected to one side of the guide rod 55. A guide groove 56 is opened inside the core shell 51. A pump core device 58 is fixedly connected to the inner side of the core shell 51. The pump core device 58 includes a pump core block 581. A flow hole 582 is opened inside the pump core block 581. One side of the pump core block 581 is fixedly connected There is a sealing air bag 583, a piston channel 584 is opened on the inner side of the pump core block 581, the inner side of the piston channel 584 opened in the pump core block 581 is fitted with the outer side of the first rubber plug 585, a second spring 586 is fixedly connected to one side of the first rubber plug 585, a limiting stopper rod 587 is fixedly connected to one side of the piston channel 584 opened in the pump core block 581, a constant pressure hole 588 is opened on the inner side of the pump core block 581, a filter block 589 is fixedly connected to the inner side of the constant pressure hole 588, and a fixed pipe block 59 is fixedly connected to the outer side of the core shell 51.

[0020] As a further implementation of the present scheme, the moving assembly 3 includes a self-locking wheel 31, a foot seat 32 is fixedly connected to the top of the self-locking wheel 31, a shock absorbing assembly 33 is welded and fixedly connected to the top of the foot seat 32, a rectangular track plate 34 is fixedly connected to the outside of the shock absorbing assembly 33, the top of the rectangular track plate 34 is fixedly connected to the top of the storage groove 23 provided in the outer shell 21, the rectangular track plate 34 is in the shape of a rectangular body, the rectangular track plate 34 is fixedly connected to the left and right sides of the shock absorbing assembly 33, a slideway is provided on the inner side of the outer shell 21 near the rectangular track plate 34, the shock absorbing assembly 33 is slidably connected to the inner side of the slideway of the outer shell 21 through the rectangular track plate 34, so that the upper end of the moving assembly 3 is conveniently embedded and installed on the inner side of the lower end of the outer shell 21, and the setting of the rectangular track plate 34 plays a role in limiting the moving assembly 3 when the moving assembly 3 moves as a whole; As a further implementation of the present scheme, the shock absorbing assembly 33 includes a movable shell 331, a buffer groove 332 is provided on the inner side of the movable shell 331, a double-column guide rod 333 is slidably connected to the inner side of the movable shell 331, a rubber ring 334 is fixedly connected to the outer side of the lower end of the double-column guide rod 333, a damping air channel 335 is provided on the inner side of the double-column guide rod 333, a first spring 336 is fixedly connected to one side of the double-column guide rod 333, the top of the first spring 336 is fixedly connected to the upper end of the buffer groove 332, the damping air channel 335 is communicated with the inside of the buffer groove 332, the outer side of the rubber ring 334 is in contact with the inner side of the buffer groove 332, and the shape of the double-column guide rod 333 is as follows: The movable shell 331 is shaped like a two-section cylinder, the bottom end of the movable shell 331 is fixedly connected to the top end of the buffer groove 332, and the buffer groove 332 is opened in the shape of two sections of a cylinder. The buffer groove 332 runs through the upper end of the movable shell 331, and the buffer groove 332 is inflated by the air pump 26, so that the inner side of the movable shell 331 is suspended on the outer side of the middle end of the double-column guide rod 333. When the electronic-grade pneumatic pump body 1 moves or works, the vibration generated by the electronic-grade pneumatic pump body 1 during operation and the impact on the ground are effectively reduced through the coordination of the damping of the gas and the elasticity of the first spring 336, thereby ensuring the safety of the internal accessories of the electronic-grade pneumatic pump body 1; As a further implementation of this scheme, the left and right sides of the electronic-grade pneumatic pump body 1 are fixedly connected with an outer shell 21, and the storage groove 23 runs through the lower end of the outer shell 21. One side of the air pump 26 is fixedly connected to one side of the electronic-grade pneumatic pump body 1. The air outlet of the air pump 26 is connected to the inner side of the connecting folded tube 25. The inner side of the multi-pass metal tube 24 is hollow. The connecting folded tube 25 is connected to the inside of the damping airway 335 through the multi-pass metal tube 24. The top of the double-column guide rod 333 is fixedly connected to the storage groove 23 near the multi-pass metal tube 24. On the side, one end of the multi-way metal tube 24 is fixedly connected to the inner side of the fixed tube block 59, and a mounting hole is opened on the inner side of the fixed tube block 59 near the multi-way metal tube 24. One end of the multi-way metal tube 24 is fixedly connected to the outer side of the pump core block 581 near the constant pressure hole 588. The inner side of the multi-way metal tube 24 is connected to the inside of the constant pressure hole 588, which is convenient for inflating the inside of the punching column hole 53 and the double column guide rod 333 at the same time after starting the air pump 26, so as to realize the limit between the liquid inlet pipe 6 and the second pump core assembly 5, and at the same time, the electronic-grade pneumatic pump body 1 has a shock-absorbing function; As a further implementation of the present scheme, one side of the core shell 51 is fixedly connected to the front end of the electronic-grade pneumatic pump body 1, the internal structure of the second pump core assembly 5 is the same as the internal structure of the first pump core assembly 4, one side of the liquid inlet pipe 6 and the liquid outlet pipe 7 are fixed with the cone block 8, the outer side of the pump core block 581 is fixedly connected to the inner side of the core shell 51, the front end of the sealing airbag 583 is tightly attached to the rear end of the cone block 8, the inner side of the constant pressure hole 588 is connected to one end of the piston channel 584, one side of the first rubber plug 585 is fixedly connected to one end of the second spring 586, the inside of the sealing airbag 583 is hollow, and the inner side of the sealing airbag 583 is connected to one end of the piston channel 584, which effectively prevents the sealing performance degradation and leakage caused by vibration, protects the pump core electronic-grade pneumatic pump body 1 from damage caused by liquid leakage, and improves the reliability and safety of the pump; Working process: During the quick connection between the liquid outlet pipe 7 and the liquid inlet pipe 6 and the pump core of the electronic-grade pneumatic pump body 1, to prevent the connected liquid inlet pipe 6 and the liquid outlet pipe 7 from falling off, the cone block 8 fixed to the liquid inlet pipe 6 is inserted from the inner side of the front end of the core shell 51. The connection method between the liquid outlet pipe 7 and the first pump core assembly 4 is the same as the connection method between the liquid inlet pipe 6 and the second pump core assembly 5. The cone block 8 is in the shape of a cone, which improves the convenience of installation between the liquid inlet pipe 6 and the second pump core assembly 5. When the cone block 8 moves to the rear end to the extreme After the rear end of the cone block 8 is attached to the front end of the sealing airbag 583, the air pump 26 is started and the solenoid valve 27 is opened at the same time. The air pump 26 delivers gas to the connecting folded tube 25 and the multi-way metal tube 24. The inner side of the connecting folded tube 25 is provided with an air pressure sensor to prevent the multi-way metal tube 24 and the connecting folded tube 25 from being damaged due to excessive pressure. The air inside the multi-way metal tube 24 enters the inside of the stamping column hole 53 from the outer convex block 52, and pushes the second rubber plug 54, the guide rod 55 and the arc-shaped push plate under the action of air pressure. 57 moves simultaneously, the guide rod 55 and the arc-shaped push plate 57 slide on the inner side of the guide groove 56, and according to the shape of the guide groove 56 and the arc-shaped push plate 57, the arc-shaped push plate 57 is prevented from twisting. The shape of one end of the arc-shaped push plate 57 is an arc structure, and the arc-shaped push plate 57 can squeeze the cone block 8 to approach the pump core device 58, so as to achieve sealing between the cone block 8 and the pump core device 58. When one end of the arc-shaped push plate 57 is in contact with the outer side of the liquid inlet pipe 6, the rear end of the arc-shaped push plate 57 is also in contact with the cone block 8. The front end of the pump 27 is fitted, and at this time, when the electromagnetic valve 27 is closed, the arc-shaped push plate 57 is limited, so that the liquid inlet pipe 6 and the second pump core assembly 5 are quickly fixed. The fixed liquid inlet pipe 6 can prevent the electronic-grade pneumatic pump body 1 from vibrating during operation, which causes fatigue in the connection between the liquid inlet pipe 6 and the second pump core assembly 5, ensure the stability of the second pump core assembly 5 and the liquid inlet pipe 6 after connection, and avoid the traditional bolt connection method causing the electronic-grade pneumatic pump body 1 to be affected in stable operation and service life; When the electronic-grade pneumatic pump body 1 is running, in order to prevent the sealing between the liquid inlet pipe 6 and the second pump core assembly 5 from decreasing due to vibration, which may cause leakage, based on the same principle as above, under the squeezing action of the arc-shaped push plate 57, the cone block 8 will move toward the pump core device 58, and the cone block 8 will squeeze the sealing airbag 583. At this time, the sealing airbag 583 will be deformed, and the air inside the sealing airbag 583 will enter the piston channel 584. Under the action of air pressure, the pump core device 58 pushes the second spring 586 to undergo elastic contraction. When the rear end of the first rubber stopper 585 is in contact with the front end of the limit stop rod 587, the cone block 8 will be in contact with the second spring 586. The displacement stops. During this process, the air at the rear end of the first rubber plug 585 flows out from the constant pressure hole 588. The filter block 589 plays a role in dust filtration. The setting of the constant pressure hole 588 can relieve the air pressure at the rear end of the first rubber plug 585. Under the elastic force of the second spring 586, the sealing airbag 583 is kept in close contact with the rear end of the cone block 8, so as to achieve the sealing effect between the pump core block 581 and the cone block 8. At the same time, it can prevent the electronic-grade pneumatic pump body 1 from indirectly causing the inlet pipe 6 and the second pump core assembly 5 to be unsealed due to vibration, thereby preventing leakage from causing damage to the electronic-grade pneumatic pump body 1; When the electronic-grade pneumatic pump body 1 is in operation or when the electronic-grade pneumatic pump body 1 is moved, if the accessories inside the electronic-grade pneumatic pump body 1 are loosened or offset due to vibration, the multi-way metal tube 24 will fill the inside of the stamping column hole 53 with gas and will also fill the inside of the damping airway 335 with gas based on the above principle. During the inflation process, the internal air pressure of the buffer groove 332 at the lower end of the double-column guide rod 333 expands. At this time, under the action of the air pressure expansion, the movable shell 331 will move downward, and the rectangular track plate 34 fixed on the outside of the movable shell 331 is slidably connected to the inner side of the storage groove 23, which plays a role in limiting the moving direction of the movable shell 331. When the movable shell 331 moves downward, it will squeeze the first spring 336, and the rubber ring 334 will play a role in The sealing effect between the double-column guide rod 333 and the movable shell 331 can prevent the gas inside the buffer groove 332 from overflowing to the outside. When the rubber ring 334 is in the middle end of the buffer groove 332, the solenoid valve 27 is closed and the air pump 26 is stopped. When the electronic-grade pneumatic pump body 1 moves or works, the electronic-grade pneumatic pump body 1 will drive the double-column guide rod 333 to slide inside the buffer groove 332. When the double-column guide rod 333 moves downward, it has a damping effect due to the resistance of air pressure. At the same time, through the buffering effect of the first spring 336, the vibration generated between the electronic-grade pneumatic pump body 1 and the ground is effectively reduced, thereby protecting the stability of the internal accessories of the electronic-grade pneumatic pump body 1 and improving the service life of the electronic-grade pneumatic pump body 1.

[0021] 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. An electronic-grade pneumatic pump with high cleanliness, comprising an electronic-grade pneumatic pump body (1) and a venting assembly (2), characterized in that: The left and right sides of the electronic-grade pneumatic pump body (1) are fixedly connected to a ventilation assembly (2), the inner side of the ventilation assembly (2) is slidably connected to a moving assembly (3), the upper end of the electronic-grade pneumatic pump body (1) is fixedly connected to a first pump core assembly (4), the inner side of the first pump core assembly (4) is provided with a liquid outlet pipe (7), the front end of the electronic-grade pneumatic pump body (1) is fixedly connected to a second pump core assembly (5), the inner side of the second pump core assembly (5) is provided with a cone block (8), and the front end of the cone block (8) is fixedly connected to a liquid inlet pipe (6); The ventilation assembly (2) comprises an outer shell (21), a tube fixing groove (22) is provided on the inner side of the outer shell (21), a receiving groove (23) is provided on the inner side of the lower end of the outer shell (21), a multi-way metal tube (24) is fixedly connected to the inner side of the tube fixing groove (22) provided in the outer shell (21), a connecting folded tube (25) is fixedly connected to one side of the multi-way metal tube (24), an air pump (26) is fixedly connected to one side of the connecting folded tube (25), and a solenoid valve (27) is installed on the inner side of the connecting folded tube (25); The second pump core assembly (5) comprises a core shell (51), an outer protrusion (52) is fixedly connected to the outer side of the core shell (51), a stamping column hole (53) is provided on the inner side of the outer protrusion (52), the inner side of the stamping column hole (53) is in contact with the outer side of the second rubber plug (54), a guide rod (55) is fixedly connected to one side of the second rubber plug (54), an arc-shaped push plate (57) is fixedly connected to one side of the guide rod (55), a guide groove (56) is provided on the inner side of the core shell (51), a pump core device (58) is fixedly connected to the inner side of the core shell (51), the pump core device (58) comprises a pump core block (581), and a flow hole (582) is provided on the inner side of the pump core block (581). A sealing airbag (583) is fixedly connected to one side of the pump core block (581), a piston channel (584) is opened on the inner side of the pump core block (581), the inner side of the piston channel (584) opened on the pump core block (581) is in contact with the outer side of the first rubber plug (585), a second spring (586) is fixedly connected to one side of the first rubber plug (585), a limit stopper rod (587) is fixedly connected to one side of the piston channel (584) opened on the pump core block (581), a constant pressure hole (588) is opened on the inner side of the pump core block (581), a filter block (589) is fixedly connected to the inner side of the constant pressure hole (588), and a fixed pipe block (59) is fixedly connected to the outer side of the core shell (51).

2. The electronic-grade pneumatic pump based on high cleanliness according to claim 1, characterized in that: The moving assembly (3) comprises a self-locking wheel (31), the top end of the self-locking wheel (31) being fixedly connected to a foot seat (32), the top end of the foot seat (32) being welded and fixedly connected to a shock absorbing assembly (33), and the outer side of the shock absorbing assembly (33) being fixedly connected to a rectangular rail plate (34).

3. The electronic-grade pneumatic pump with high cleanliness according to any one of claims 1 and 2, characterized in that: The top end of the rectangular rail plate (34) is fixedly connected to the top end of the receiving groove (23) provided in the outer shell (21); the rectangular rail plate (34) is in the shape of a rectangular body; the rectangular rail plate (34) is fixedly connected to the left and right sides of the shock absorbing component (33); a slideway is provided on the inner side of the outer shell (21) close to the rectangular rail plate (34); and the shock absorbing component (33) is slidably connected to the inner side of the slideway of the outer shell (21) via the rectangular rail plate (34).

4. The electronic-grade pneumatic pump based on high cleanliness according to claim 2 is characterized in that: The shock absorbing assembly (33) comprises a movable shell (331), a buffer groove (332) is provided on the inner side of the movable shell (331), a double-column guide rod (333) is slidably connected to the inner side of the movable shell (331), a rubber ring (334) is fixedly connected to the outer side of the lower end of the double-column guide rod (333), a damping air channel (335) is provided on the inner side of the double-column guide rod (333), a first spring (336) is fixedly connected to one side of the double-column guide rod (333), and the top end of the first spring (336) is fixedly connected to the upper end of the buffer groove (332).

5. The electronic-grade pneumatic pump based on high cleanliness according to claim 4 is characterized in that: The damping air passage (335) is communicated with the interior of the buffer groove (332); the outer side of the rubber ring (334) is fitted with the inner side of the buffer groove (332); the double-column guide rod (333) is in the shape of two sections of a cylinder; the bottom end of the movable shell (331) is fixedly connected to the top end of the buffer groove (332); the opening shape of the buffer groove (332) is in the shape of two sections of a cylinder; and the buffer groove (332) passes through the upper end of the movable shell (331).

6. The electronic-grade pneumatic pump with high cleanliness according to any one of claims 1 and 4, characterized in that: The left and right sides of the electronic-grade pneumatic pump body (1) are fixedly connected to an outer shell (21); the receiving groove (23) penetrates the lower end of the outer shell (21); one side of the air pump (26) is fixedly connected to one side of the electronic-grade pneumatic pump body (1); the air outlet of the air pump (26) is connected to the inner side of the connecting folded tube (25); the inner side of the multi-channel metal tube (24) is hollow; the connecting folded tube (25) is connected to the inside of the damping air channel (335) through the multi-channel metal tube (24); and the top end of the double-column guide rod (333) is fixedly connected to the inner side of the receiving groove (23) near the multi-channel metal tube (24).

7. The electronic-grade pneumatic pump based on high cleanliness according to claim 1 is characterized in that: One end of the multi-way metal tube (24) is fixedly connected to the inner side of the fixed tube block (59); a mounting hole is provided on the inner side of the fixed tube block (59) close to the multi-way metal tube (24); one end of the multi-way metal tube (24) is fixedly connected to the outer side of the pump core block (581) close to the constant pressure hole (588); and the inner side of the multi-way metal tube (24) is connected to the inside of the constant pressure hole (588).

8. The electronic-grade pneumatic pump based on high cleanliness according to claim 1, characterized in that: One side of the core shell (51) is fixedly connected to the front end of the electronic-grade pneumatic pump body (1); the internal structure of the second pump core assembly (5) is the same as the internal structure of the first pump core assembly (4); and a cone block (8) is fixed to one side of the liquid inlet pipe (6) and the liquid outlet pipe (7).

9. The electronic-grade pneumatic pump based on high cleanliness according to claim 1, characterized in that: The outer side of the pump core block (581) is fixedly connected to the inner side of the core shell (51), the front end of the sealing airbag (583) is tightly attached to the rear end of the cone block (8), the inner side of the constant pressure hole (588) is connected to one end of the piston channel (584), one side of the first rubber plug (585) is fixedly connected to one end of the second spring (586), the interior of the sealing airbag (583) is hollow, and the inner side of the sealing airbag (583) is connected to one end of the piston channel (584).

10. The assembly method of a high-cleanliness electronic-grade pneumatic pump according to any one of claims 1 to 9, characterized in that: S1: During the quick connection process between the liquid outlet pipe (7) and the liquid inlet pipe (6) and the pump core of the electronic-grade pneumatic pump body (1), the cone block (8) fixed to the liquid inlet pipe (6) is inserted from the inner side of the front end of the core shell (51), and the connection method between the liquid outlet pipe (7) and the first pump core assembly (4) is the same as the connection method between the liquid inlet pipe (6) and the second pump core assembly (5). The air pump (26) is started and the solenoid valve (27) is opened at the same time. The air pump (26) transports gas to the inside of the connecting folded pipe (25) and the multi-way metal pipe (24). The multi-way metal pipe (24) is connected to the pump core assembly (51). The air inside the tube (24) enters the inside of the stamping column hole (53) from the outer protrusion (52), pushing the second rubber plug (54), the guide rod (55) and the arc-shaped push plate (57) to move simultaneously. The guide rod (55) and the arc-shaped push plate (57) slide on the inner side of the guide groove (56). After one end of the arc-shaped push plate (57) is in contact with the outer side of the liquid inlet tube (6), the rear end of the arc-shaped push plate (57) is also in contact with the front end of the cone block (8). When the solenoid valve (27) is closed, the arc-shaped push plate (57) is limited. S2: The cone block (8) moves toward the pump core device (58), and the cone block (8) squeezes the sealing airbag (583). At this time, the sealing airbag (583) is deformed, and the air inside the sealing airbag (583) enters the interior of the piston channel (584). The pump core device (58) pushes the second spring (586) to elastically contract. After the rear end of the first rubber plug (585) is in contact with the front end of the limit stop rod (587), the elastic force of the second spring (586) keeps the sealing airbag (583) in close contact with the rear end of the cone block (8); S3: The multi-channel metal tube (24) fills the inside of the stamping column hole (53) with gas and also fills the inside of the damping air channel (335) with gas, the movable shell (331) moves downward, the rectangular track plate (34) fixed on the outside of the movable shell (331) is slidably connected to the inner side of the receiving groove (23), the movable shell (331) moves downward to squeeze the first spring (336), the solenoid valve (27) is closed, the air pump (26) stops, and the electronic-grade pneumatic pump body (1) drives the double-column guide rod (333) to slide inside the buffer groove (332).

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