Intelligent control vacuum generator with built-in shuttle valve

Abstract

The invention provides an intelligent control vacuum generator with a built-in shuttle valve, the intelligent control vacuum generator is applied to the technical field of vacuum generator equipment, and the intelligent control vacuum generator comprises an air channel shell which comprises a valve body, a quick discharge box and a side connection box; the quick discharging box is arranged on one side of the valve body, and the side connecting box is arranged on the other side of the valve body. The valve body, the quick exhaust box and the side connecting box form a combined structure with an air passage inside; the outer path connecting assembly comprises an electromagnetic valve, a pressure gauge, a silencer connecting block and a silencer; the problems that an electromagnetic valve, a digital display pressure gauge, a vacuum generator and other devices of an existing vacuum generator are dispersedly arranged, the structural design is bloated and complex, gas circuit pipelines are staggered, assembly is time-consuming, and the appearance is not attractive are solved; the structure is complex, the whole machine head weight is increased, and the equipment running speed is influenced; the technical problems that a two-position three-way electromagnetic valve is externally connected, wiring is time-consuming, a plurality of PLC signal ports are occupied, the appearance is not attractive, the weight of a machine head is increased, and the running speed of equipment is affected are solved.

Description

Technical Field

[0001] The present application relates to the technical field of vacuum generator equipment, and in particular to a vacuum generator with a built-in shuttle valve and intelligent control. Background Art

[0002] The conventional design of the current vacuum generator is generally achieved by a two-position three-way solenoid valve in conjunction with a negative pressure generator, plus a digital pressure gauge;

[0003] First, building a complete suction and handling application requires highly professional engineers to draw up blueprints. Multiple parts are assembled together, making installation extremely time-consuming. Pipelines are cluttered and complex, and placing too much weight on the machine head affects speed and positioning accuracy. Later debugging and maintenance are inconvenient, and the overall cost is relatively high.

[0004] In addition, the current vacuum generator's solenoid valves, digital pressure gauges, vacuum generators and other equipment are dispersed, with bulky and complex structural designs, crisscrossed gas pipelines, and time-consuming and unsightly assembly. The complex structure increases the overall machine head weight, affecting the equipment's operating speed. The external two-position three-way solenoid valve requires time-consuming wiring, occupies multiple PLC signal ports, and is unsightly, increasing the machine head weight and affecting the equipment's operating speed. Summary of the Invention

[0005] This application aims to solve the technical problems that the current vacuum generator's solenoid valves, digital pressure gauges, vacuum generators and other equipment are dispersedly set, the structural design is bloated and complex, the air pipelines are staggered, the assembly is time-consuming and unsightly; the structure is complex, which increases the weight of the overall machine head and affects the operating speed of the equipment; the external two-position three-way solenoid valve is time-consuming to wire, occupies multiple PLC signal ports and is unsightly, increases the weight of the machine head, and affects the operating speed of the equipment, and provides a vacuum generator with built-in shuttle valve intelligent control.

[0006] This application uses the following technical means to solve the technical problem:

[0007] A vacuum generator with built-in shuttle valve intelligent control, comprising:

[0008] An airway housing, comprising a valve body, a quick exhaust box and a side connection box;

[0009] The quick-discharge box is arranged on one side of the valve body, and the side connection box is arranged on the other side of the valve body;

[0010] The valve body, the quick exhaust box and the side connection box form a combined structure with an air passage inside;

[0011] An external circuit connection assembly, comprising a solenoid valve, a pressure gauge, a muffler connection block, and a muffler;

[0012] The solenoid valve is connected to the pressure gauge and both are arranged on the side connection box, the muffler connection block is connected to the muffler, and the muffler connection block and the muffler are arranged on the valve body;

[0013] An air passage assembly, the air passage assembly comprising a piston, a vacuum tube and a shuttle valve;

[0014] The piston is arranged between the side connection box and the valve body, the vacuum tube and the shuttle valve are both arranged in the valve body, and the other end of the vacuum tube is connected to the muffler connection block.

[0015] Furthermore, the external connection assembly further includes a positive pressure connector and a negative pressure connector;

[0016] The positive pressure joint is arranged on the side connection box, and the negative pressure joint is arranged on the valve body. The positive pressure joint and the negative pressure joint are arranged in a mirror image through the quick discharge box.

[0017] Furthermore, the air passage assembly further includes a first air-sealing steel ball, a second air-sealing steel ball, a first sealing ring, a second sealing ring, a third sealing ring, a fourth sealing ring and a fifth sealing ring;

[0018] The first air-sealing steel ball is arranged on the side connection box, and the second air-sealing steel ball is arranged between the valve body and the quick-discharge box;

[0019] The first sealing ring and the second sealing ring are both arranged between the valve body and the side connection box, the third sealing ring is arranged between the valve body and the quick discharge box, and the fourth sealing ring and the fifth sealing ring are both arranged on the shuttle valve.

[0020] Furthermore, the valve body is provided with a first connecting pipe, a first diverting pipe, a piston chamber, a shuttle tube, a shuttle chamber and a negative pressure connecting chamber;

[0021] The positive pressure interface is in communication with the first connecting pipe, the first connecting pipe is in communication with the first shunt pipe, both of the first connecting pipe and the first shunt pipe lead to the piston chamber, the piston assembly is arranged in the piston chamber, the piston chamber is in communication with the negative pressure connecting chamber, the vacuum tube is arranged in the negative pressure connecting chamber, the piston chamber is in communication with the shuttle chamber through the shuttle tube, the shuttle valve is arranged in the shuttle chamber, and the shuttle chamber is in communication with the quick discharge box.

[0022] Furthermore, the shuttle valve is composed of a hollow rod and a leather cup, the leather cup is located on one side of the hollow rod, the interior of the hollow rod has a space, and the hollow rod is fixed in the shuttle chamber, the hollow rod has a closed ring, the closed ring is arranged on the other side of the hollow rod, the extension of the hollow rod on the other side of the closed ring is arranged in the negative pressure interface and the negative pressure connection chamber, and the hollow rod adsorbs the leather cup as the negative pressure of the negative pressure interface is applied.

[0023] Furthermore, the leather cup is not connected to the hollow rod and is arranged in the shuttle chamber. Both sides of the leather cup are fitted on the inner wall of the shuttle chamber. The surface of the leather cup facing the positive pressure side has multiple rivet openings, and the leather cup is arranged in an open "C" shape structure on the other side facing the negative pressure.

[0024] The present application provides a vacuum generator with built-in shuttle valve intelligent control, which has the following beneficial effects: through the airway housing, the airway housing includes a valve body, a quick exhaust box and a side connection box; the quick exhaust box is arranged on one side of the valve body, and the side connection box is arranged on the other side of the valve body; the valve body, the quick exhaust box and the side connection box form a combined structure with an airway inside; an external connection component, the external connection component includes a solenoid valve, a pressure gauge, a muffler connection block and a muffler; the solenoid valve is connected to the pressure gauge and both are arranged on the side connection box, the muffler connection block is connected to the muffler, and the muffler connection block and the muffler are arranged on the valve body; the airway port component, the The air passage assembly includes a piston part, a vacuum tube and a shuttle valve; the piston part is arranged between the side connection box and the valve body, the vacuum tube is arranged in the valve body and the shuttle valve is arranged in the valve body, and the other end of the vacuum tube is connected to the muffler connection block; it has the function of solving the technical problems that the current vacuum generator's solenoid valves, digital pressure gauges and vacuum generators and other equipment are scattered, the structural design is bloated and complicated, the air pipelines are staggered, the assembly is time-consuming and unsightly; the structure is complex, the overall head weight is increased, and the equipment operation speed is affected; the external two-position three-way solenoid valve, the wiring is time-consuming, occupies multiple PLC signal ports and is unsightly, increases the head weight, and affects the equipment operation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a vacuum generator with built-in shuttle valve intelligent control in this application;

[0026] Figure 2 This is a cross-sectional view of the overall structure of an embodiment of a vacuum generator with built-in shuttle valve intelligent control according to the present application;

[0027] Figure 3 This is an exploded view of the overall structure of an embodiment of a vacuum generator with built-in shuttle valve intelligent control in this application;

[0028] Figure 4This is an exploded diagram of the shuttle valve structure of an embodiment of a vacuum generator with built-in shuttle valve intelligent control in this application;

[0029] Figure 5 This is an air flow indication diagram for negative pressure adsorption of an object in accordance with one embodiment of a vacuum generator with built-in shuttle valve intelligent control according to the present application;

[0030] Figure 6 This is an internal air-breaking air flow indication diagram of an embodiment of a vacuum generator with built-in shuttle valve intelligent control in this application.

[0031] The implementation, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0033] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] It should be noted that the terms "include", "comprising" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices. In the claims, specification and drawings of this application, relational terms such as "first" and "second" are merely used to distinguish one entity / operation / object from another entity / operation / object, and do not necessarily require or imply any actual relationship or order between these entities / operations / objects.

[0035] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] Reference Attachment Figure 1-6, is a schematic diagram of the overall structure of a vacuum generator with built-in shuttle valve intelligent control in one embodiment of the present application;

[0037] Example 1

[0038] A vacuum generator with built-in shuttle valve intelligent control, comprising:

[0039] The airway housing includes a valve body 2, a quick exhaust box 3 and a side connection box;

[0040] The quick discharge box 3 is arranged on one side of the valve body 2, and the side connection box is arranged on the other side of the valve body 2;

[0041] The valve body 2, the quick exhaust box 3 and the side connection box form a combined structure with an air passage inside;

[0042] An external connection assembly, comprising a solenoid valve 1, a pressure gauge, a muffler connection block and a muffler 6;

[0043] The solenoid valve 1 is connected to the pressure gauge and both are arranged on the side connection box, the muffler connection block is connected to the muffler 6, and the muffler connection block and the muffler 6 are arranged on the valve body 2;

[0044] An air passage assembly, comprising a piston, a vacuum tube 201 and a shuttle valve;

[0045] The piston is arranged between the side connection box and the valve body 2 , the vacuum tube 201 and the shuttle valve are both arranged in the valve body 2 , and the other end of the vacuum tube 201 is connected to the muffler connection block.

[0046] The external connection assembly further includes a positive pressure connector 4 and a negative pressure connector 5;

[0047] The positive pressure joint 4 is provided on the side connection box, and the negative pressure joint 5 is provided on the valve body 2 . The positive pressure joint 4 and the negative pressure joint 5 are mirror-imaged through the quick discharge box 3 .

[0048] The air passage assembly further includes a first air-sealing steel ball, a second air-sealing steel ball, a first sealing ring, a second sealing ring, a third sealing ring, a fourth sealing ring and a fifth sealing ring;

[0049] The first air-sealing steel ball is arranged on the side connection box, and the second air-sealing steel ball is arranged between the valve body 2 and the quick exhaust box 3;

[0050] The first sealing ring and the second sealing ring are both arranged between the valve body 2 and the side connection box, the third sealing ring is arranged between the valve body 2 and the quick discharge box 3, and the fourth sealing ring and the fifth sealing ring are both arranged on the shuttle valve.

[0051] In this embodiment, the valve body 2 is provided with a first connecting pipe 202, a first diversion pipe 203, a piston chamber 205, a shuttle tube 206, a shuttle chamber and a negative pressure connecting chamber 207;

[0052] The positive pressure interface is in communication with the first connecting pipe 202, the first connecting pipe 202 is in communication with the first shunt pipe 203, both the first connecting pipe 202 and the first shunt pipe 203 lead to the piston chamber 205, the piston assembly 204 is disposed in the piston chamber 205, the piston chamber 205 is in communication with the negative pressure connecting chamber 207, the vacuum tube 201 is disposed in the negative pressure connecting chamber 207, the piston chamber 205 is in communication with the shuttle chamber via the shuttle tube 206, the shuttle valve is disposed in the shuttle chamber, and the shuttle chamber is in communication with the quick-displacement box 3.

[0053] The shuttle valve consists of a hollow rod 209 and a leather cup 208. The leather cup 208 is located on one side of the hollow rod 209. There is space inside the hollow rod 209, and the hollow rod 209 is fixed in the shuttle chamber. The hollow rod 209 has a closed ring 211, and the closed ring 211 is arranged on the other side of the hollow rod 209. The extension of the hollow rod 209 on the other side of the closed ring 211 is arranged in the negative pressure interface and the negative pressure connection chamber 207. The hollow rod 209 adsorbs the leather cup 208 according to the negative pressure of the negative pressure interface.

[0054] The leather cup 208 is not connected to the hollow rod 209 and is arranged in the shuttle chamber. Both sides of the leather cup 208 are attached to the inner wall of the shuttle chamber. The surface of the leather cup 208 facing the positive pressure side has multiple rivet openings 213, and the leather cup 208 is arranged in an open "C" shape structure on the other side facing the negative pressure.

[0055] Specifically,

[0056] In a traditional vacuum generator, negative pressure is used to adsorb an object, which is then transferred. When the negative pressure is stopped to release the object, the object will remain on the vacuum generator due to the delay after the negative pressure stops, and the object will not be released instantly. During this process, there will be a delay of varying residence time. In an automated production line, this time delay will greatly reduce the production efficiency of the automated production line. Therefore, the existing method is to add positive pressure in the reverse direction when the object needs to be released to break the negative pressure adsorption delay between the vacuum generator and the object, so that the object can be released in a very short time.

[0057] After briefly introducing the principle above, the negative pressure adsorption air movement principle of this application is described first, referring to Figure 5 The air movement arrows are as follows:

[0058] The positive pressure connector 4 continuously delivers external positive pressure into the first connecting pipe 202. After entering the first connecting pipe 202, a portion of the pressure is diverted into the first diversion pipe 203. At this time, the piston chamber 205 is in the initial state, that is, the positive pressure reaches the left and right sides of the piston assembly 204 respectively through the first connecting pipe 202 and the first diversion pipe 203, that is, the solenoid valve 1 is not energized. The spring of the piston assembly 204 in the piston chamber 205 pushes the piston assembly 204 to the rightmost side of the piston chamber 205, blocking the connection with the negative pressure connecting chamber 207 and the shuttle chamber. This is the initial state.

[0059] Next, the solenoid valve 1 is energized to disconnect the first connecting pipe 202 for positive pressure air intake. At this time, there is no air pressure on the left side of the piston assembly 204, and the first diversion pipe 203 on the right side enters the positive pressure to compress the piston assembly 204 and move the spring to the left, opening the connection between the piston chamber 205 and the negative pressure connecting chamber 207 and the shuttle chamber. At this time, the positive pressure will flow toward the negative pressure connecting chamber 207 and the shuttle chamber in two paths. Let’s talk about the positive pressure of the negative pressure connecting chamber 207 first. It will flow through the vacuum tube 201 to form negative pressure, and the negative pressure will be directed to the negative pressure connector 5. Therefore, the negative pressure generated by the negative pressure connector 5 will generate negative pressure suction on the object. The force adsorbs objects. In the direction of air flow from the negative pressure connector 5 toward the negative pressure connection chamber 207, it will pass through the hollow rod 209. The through hole 212 on the hollow rod 209 is connected to the internal space of the hollow rod 209, generating a rightward adsorption force toward the hollow rod 209 of the shuttle chamber section. Under this adsorption force, the leather cup 208 will be adsorbed and abutted against the hollow rod 209, so that the left end of the hollow rod 209 is abutted and closed by the leather cup 208. At this time, the leather cup 208 will continue to be adsorbed by the negative pressure of the hollow rod 209, and the negative pressure will continue to adsorb the object on the negative pressure connector 5. In summary, this is the entire process of negative pressure adsorption of objects.

[0060] It is particularly important that, during the process of continuous negative pressure adsorption of the object and the continuous adsorption of the leather cup 208 by the hollow rod 209, the positive pressure in the piston chamber 205 has another path to flow toward the shuttle tube 206 and into the shuttle chamber. When flowing into the shuttle chamber, the leather cup 208 is adsorbed on the hollow rod 209 at this time, and the positive pressure will flow into the rivet point opening 213 on one side of the leather cup 208 and enter the middle position of the leather cup 208. Then, because the leather cup 208 is made of colloid, the positive pressure will rush to the C-shaped opening 214 on the other side of the leather cup 208 through the rivet point opening 213. The C-shaped opening 214 will shrink due to the positive pressure. The positive pressure passes through the shrinking C-shaped opening 214 and the inner wall of the shuttle chamber and enters the position located at the hollow rod 209. When the hollow rod 209 is in the position, the positive pressure cannot enter the negative pressure connector 5 due to the obstruction of the sealing ring 211, and can only enter the quick discharge box 3 for storage through the pipe connected above. At this time, all the work processes of negative pressure adsorption of objects are completed;

[0061] When the adsorbed object is transported to the corresponding position, the negative pressure on the object needs to be released. When releasing the object, a positive pressure breaking action is required, just like the principle that the suction cup can be completely released as long as there is a little internal pressure. Usually, the positive pressure breaking action is controlled by the second solenoid valve 1, but this will result in a complex structure, multiple circuits, multiple controls, and slow response speed.

[0062] In this technology, reference Figure 6 The air movement arrow of the air-breaking movement principle is as follows:

[0063] When the object needs to be put down after continuous adsorption, the solenoid valve 1 is de-energized. At this time, the positive pressure in the positive pressure interface enters the first connecting pipe 202 and is diverted to the first diversion pipe 203. The positive pressure in the first connecting pipe 202 enters the left side of the piston assembly 204 in the piston chamber 205, and the positive pressure in the first diversion pipe 203 enters the right side of the piston assembly 204 in the piston chamber 205. At this time, the piston chamber 205 reaches an air equilibrium state, and the spring gradually changes from the compressed state that originally adsorbed the object to the initial extended state through elastic potential energy. At this time, the piston assembly 204 abuts against the rightmost end of the piston chamber 205, that is, the negative pressure connecting chamber 207 and the shuttle chamber that were originally connected are closed. Therefore, there is no positive pressure input to the negative pressure connecting chamber 207, resulting in the negative pressure being unable to continue to be generated in the vacuum tube 201 through the negative pressure connector 5 to adsorb the object.

[0064] It is particularly important that, in the absence of negative pressure, the through hole 212 on the hollow rod 209 will not be sucked by the negative pressure through the internal space of the hollow rod 209 to the leather cup 208 in the shuttle chamber. The leather cup 208 is in a loose state at this time, and the positive pressure flowing in from the piston chamber 205 also disappears. There is no positive pressure continuously entering the quick discharge box 3. At this time, the quick discharge box 3 is full of positive pressure, because the positive pressure in the quick discharge box 3 at this time is greater than the air pressure inside the valve body 2. The positive pressure of the quick discharge box 3 enters the shuttle chamber through the pipeline. Because the right side is blocked by the closing ring 211, the positive pressure of the quick discharge box 3 can only be dredged toward the side of the leather cup 208. The leather cup 208 is abutted against the hollow rod 209 by the positive pressure. The positive pressure is ejected to the left side of the shuttle chamber because the C-shaped port 214 of the leather cup 208 is equivalent to a one-way valve, which can only allow entry from the left side but not the right side. Therefore, the positive pressure on the right side or the leather cup 208 is ejected. The positive pressure cannot flow back to the shuttle tube 206 through the leather cup 208 to enter the piston chamber 205, and can only be transported through the space in the hollow rod 209 to the through hole 212 of the hollow rod 209 on one side of the negative pressure joint 5. The positive pressure is output from the through hole 212 in the hollow rod 209, one direction goes out of the negative pressure connection chamber 207 downward, and the other direction goes out of the negative pressure joint 5 upward, so as to achieve the purpose of delaying the pressure release of the negative pressure joint 5 on the object and breaking through the air to quickly relax the object.

[0065] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0066] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0067] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0068] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0069] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A vacuum generator with built-in shuttle valve intelligent control, characterized in that: include: An airway housing, comprising a valve body, a quick exhaust box and a side connection box; The quick-discharge box is arranged on one side of the valve body, and the side connection box is arranged on the other side of the valve body; The valve body, the quick exhaust box and the side connection box form a combined structure with an air passage inside; An external circuit connection assembly, comprising a solenoid valve, a pressure gauge, a muffler connection block, and a muffler; The solenoid valve is connected to the pressure gauge and both are arranged on the side connection box, the muffler connection block is connected to the muffler, and the muffler connection block and the muffler are arranged on the valve body; An air passage assembly, the air passage assembly comprising a piston, a vacuum tube and a shuttle valve; The piston is arranged between the side connection box and the valve body, the vacuum tube and the shuttle valve are arranged in the valve body, and the other end of the vacuum tube is connected to the muffler connection block; The shuttle valve is used to block the leakage of the negative pressure interface or the reverse breaking of the negative pressure.

2. The vacuum generator with built-in shuttle valve intelligent control according to claim 1, characterized in that: The external connection assembly also includes a positive pressure connector and a negative pressure connector; The positive pressure joint is arranged on the side connection box, and the negative pressure joint is arranged on the valve body. The positive pressure joint and the negative pressure joint are arranged in a mirror image through the quick discharge box.

3. The vacuum generator with built-in shuttle valve intelligent control according to claim 1, characterized in that: The air passage assembly further includes a first air-sealing steel ball, a second air-sealing steel ball, a first sealing ring, a second sealing ring, a third sealing ring, a fourth sealing ring and a fifth sealing ring; The first air-sealing steel ball is arranged on the side connection box, and the second air-sealing steel ball is arranged between the valve body and the quick-discharge box; The first sealing ring and the second sealing ring are both arranged between the valve body and the side connection box, the third sealing ring is arranged between the valve body and the quick discharge box, and the fourth sealing ring and the fifth sealing ring are both arranged on the shuttle valve.

4. The vacuum generator with built-in shuttle valve intelligent control according to claim 3, characterized in that: The valve body is provided with a first connecting pipe, a first diverting pipe, a piston chamber, a shuttle tube, a shuttle chamber and a negative pressure connecting chamber; The positive pressure interface is in communication with the first connecting pipe, the first connecting pipe is in communication with the first shunt pipe, both of the first connecting pipe and the first shunt pipe lead to the piston chamber, the piston assembly is arranged in the piston chamber, the piston chamber is in communication with the negative pressure connecting chamber, the vacuum tube is arranged in the negative pressure connecting chamber, the piston chamber is in communication with the shuttle chamber through the shuttle tube, the shuttle valve is arranged in the shuttle chamber, and the shuttle chamber is in communication with the quick discharge box.

5. The vacuum generator with built-in shuttle valve intelligent control according to claim 4, characterized in that: The shuttle valve consists of a hollow rod and a leather cup, the leather cup is located on one side of the hollow rod, there is a space inside the hollow rod, and the hollow rod is fixed in the shuttle chamber, the hollow rod has a closed ring, the closed ring is arranged on the other side of the hollow rod, the extension of the hollow rod on the other side of the closed ring is arranged in the negative pressure interface and the negative pressure connection chamber, and the hollow rod adsorbs the leather cup as the negative pressure of the negative pressure interface is applied.

6. The vacuum generator with built-in shuttle valve intelligent control according to claim 5, characterized in that: The leather cup is not connected to the hollow rod and is arranged in the shuttle chamber. Both sides of the leather cup are fitted on the inner wall of the shuttle chamber. The surface of the leather cup facing the positive pressure side has multiple rivet openings, and the leather cup is arranged in an open "C" shape structure on the other side facing the negative pressure.

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