Integrated vacuum generator

Abstract

The utility model discloses an integrated vacuum generator which comprises an integrated frame and a plurality of vacuum generating units, each vacuum generating unit comprises a valve body, a vacuum pilot valve and a vacuum breaking pilot valve, the valve body is provided with an air supply channel, a valve cavity, an exhaust channel, a vacuum channel, a first air channel, a second air channel and a third air channel, and a valve element assembly is arranged in the valve cavity. The vacuum pilot valve controls the position of the valve element assembly by controlling the opening and closing of the vacuum pilot channel; the third air channel is communicated with the outside and the valve cavity, and the vacuum breaking pilot valve controls the position of the valve element assembly by controlling the opening and closing of the vacuum breaking pilot channel; the exhaust channel is communicated with the vacuum channel through a fourth air channel, a main air inlet is formed in the integrated frame, main air inlet holes communicated with the corresponding air supply channels are formed in the valve bodies, the main air inlet holes of the adjacent valve bodies are in sealed butt joint and communicated to form a main air inlet channel, and the main air inlet is communicated with the main air inlet channel. Unified main air inlets and main air inlet channels are adopted for ventilation, connecting air pipes are reduced, the overall structure is more compact, the size is smaller, and assembling is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum generators, in particular to an integrated vacuum generator. Background Art

[0002] A vacuum generator is a vacuum component that uses a positive pressure gas source to generate negative pressure. Generally, compressed gas is used as the positive pressure gas source. Vacuum generators are generally used for the adsorption and transportation of various materials. Existing vacuum generators, such as an integrated vacuum generator and a method of use disclosed in a Chinese patent (application publication number CN111692138A), include an air supply device, a vacuum generating device and a control device; the control device includes a vacuum pressure gauge, a vacuum pilot valve, a vacuum breaking pilot valve, a valve core and a valve body; the vacuum generating device includes a built-in vacuum generating tube and a vacuum chamber; the valve body is provided with a valve core chamber and a valve inner channel; the valve core is provided in the valve core chamber; the air supply device is connected to the valve core chamber; the valve core chamber is connected to the vacuum pilot valve and the vacuum breaking pilot valve through the valve inner channel.

[0003] However, the existing vacuum valve generator has the following disadvantages:

[0004] 1. In the existing integrated vacuum generator, each vacuum generating unit needs to be plugged with an air intake connector and an air intake pipe, which makes the existing integrated vacuum generator have more pipelines and a larger volume;

[0005] 2. The existing integrated vacuum generator generally introduces positive pressure gas, but cannot be connected to a vacuum air source, that is, the existing integrated vacuum generator is not suitable for a vacuum air source, and thus the application scope of the existing integrated vacuum generator is relatively narrow. Summary of the invention

[0006] The utility model aims to provide an integrated vacuum generator, wherein a plurality of vacuum generating units adopt a unified main air inlet and a main air inlet channel for ventilation, thereby reducing the number of connecting air pipes, making the overall structure more compact, the volume smaller, and the assembly more convenient.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions: an integrated vacuum generator, including an integrated frame and a plurality of vacuum generating units integrated on the integrated frame, the vacuum generating unit including a valve body, a vacuum pilot valve and a vacuum breaking pilot valve, the valve body is provided with an air supply channel, a valve cavity, an exhaust channel, a vacuum channel, a first air channel, a second air channel and a third air channel, a muffler is provided at a position of the valve body corresponding to the exhaust channel outlet, a valve core assembly is provided in the valve cavity, the first air channel connects the air supply channel and the valve cavity, the second air channel connects the exhaust channel and the valve cavity, the vacuum pilot valve is controlled by The on-off of the vacuum pilot channel is controlled to control the position of the valve core assembly, thereby controlling the on-off of the first air channel and the second air channel; the third air channel is connected to the outside and the valve chamber, and the vacuum breaking pilot valve controls the position of the valve core assembly by controlling the on-off of the vacuum breaking pilot channel, thereby controlling the on-off of the third air channel and the first air channel; the exhaust channel is connected to the vacuum channel through the fourth air channel, and a main air inlet is provided on the integrated frame, and main air inlet holes connected to the corresponding air supply channels are provided on several valve bodies, and the main air inlet holes of adjacent valve bodies are sealed and connected to form a main air inlet channel, and the main air inlet is connected to the main air inlet channel.

[0008] Furthermore, multiple valve bodies are provided with auxiliary air inlet holes, and the auxiliary air inlet holes of adjacent valve bodies are sealed and connected to form an auxiliary air inlet channel, and the auxiliary air inlet channel is connected to the valve cavity on the side of the corresponding vacuum breaking pilot channel. The air supply channel is used to connect the opening of the valve cavity on the side of the corresponding vacuum breaking pilot channel and is sealed by a first plug. The integrated frame is provided with an auxiliary air inlet port, which is connected to the auxiliary air inlet channel, and the opening of the exhaust channel is sealed by a second plug.

[0009] Furthermore, the main air intake passage is sealed at a side away from the main air intake port, and the auxiliary air intake passage is sealed at a side away from the auxiliary air intake port.

[0010] Furthermore, a first annular plug is provided at one end of the valve body corresponding to the main air inlet hole, and a first socket for inserting the first annular plug is provided at the other end. A first sealing ring that seals with the outer wall of the first annular plug is provided at the first socket. The first annular plug of the valve body is inserted into the first socket adjacent to the valve body or the position of the integrated frame corresponding to the main air inlet channel.

[0011] Furthermore, a second annular plug is provided at one end of the valve body corresponding to the secondary air inlet hole, and a second socket for inserting the second annular plug is provided at the other end. A second sealing ring is provided at the second socket for sealing with the outer wall of the second annular plug. The second annular plug of the valve body is inserted into the second socket adjacent to the valve body or the position of the integrated frame corresponding to the main air inlet channel.

[0012] Furthermore, the integrated frame includes two side blocks and a back block connecting the two side ends. The two side blocks are respectively provided with main air inlets. The main air inlet of the left block is connected to the left side of the main air inlet channel, and the main air inlet of the right block is connected to the right side of the main air inlet channel.

[0013] Furthermore, auxiliary air inlets are respectively provided on the two side blocks, the auxiliary air inlet of the left block is connected to the left side of the auxiliary air inlet channel, and the auxiliary air inlet of the right block is connected to the right side of the auxiliary air inlet channel, and the integrated frame can selectively block the auxiliary air inlet.

[0014] Furthermore, the valve chamber includes a left chamber, a middle chamber and a right chamber, the valve core assembly includes a left valve core, a right valve core and an elastic member arranged between the two valve cores, the left valve core is arranged in the left chamber, the left chamber is provided with a left valve port for connecting the first air channel and the second air channel, the outer periphery of the left valve core is provided with a first sealing member for sealing the left valve port, the valve body is provided with a right valve port for connecting the vacuum breaking pilot channel and the third air channel, the outer periphery of the right valve core is provided with a second sealing member for sealing the right valve port, and the valve body is provided with a fifth air channel connected to the middle chamber.

[0015] Furthermore, the vacuum pilot channel includes a first channel and a second channel, the first channel connects the valve chamber and the vacuum pilot valve, the second channel connects the vacuum pilot valve and the left chamber, and the opening and closing of the first channel and the second channel are controlled by the vacuum pilot valve; the vacuum breaking pilot channel includes a third channel and a fourth channel, the third channel connects the valve chamber and the vacuum breaking pilot valve, the fourth channel connects the vacuum breaking pilot valve and the right valve chamber, and the opening and closing of the third channel and the fourth channel are controlled by the vacuum breaking pilot valve.

[0016] Furthermore, a fixing seat is connected to the side end of the integrated frame, a connector is installed on the fixing seat, a first wire groove is provided in the fixing seat, and a second wire groove is provided on the integrated frame for the electrical connection wire of the vacuum generating unit to pass through, so that the electrical connection on the vacuum generating unit can be electrically connected to the connector through the second wire groove and the first wire groove in sequence.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. The integrated vacuum generator of the utility model has multiple vacuum generating units that adopt a unified main air inlet and main air inlet channel for ventilation, which reduces the number of connecting air pipes, makes the overall structure more compact, has a smaller volume, and is more convenient to assemble;

[0019] 2. The integrated vacuum generator of the utility model is provided with a secondary air inlet hole on the integrated frame, and a secondary air inlet channel is formed on a plurality of vacuum generating units. When the user has a vacuum air source, vacuum air can be introduced into the main air inlet and positive pressure gas can be introduced into the secondary air inlet, so that the integrated vacuum generator is suitable for an environment with a vacuum air source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a top view of the utility model.

[0022] Figure 3 The utility model Figure 2 Sectional view at point A.

[0023] Figure 4 It is a structural schematic diagram of the main air intake passage of the utility model.

[0024] Figure 5 It is a structural schematic diagram of the auxiliary air intake passage of the utility model.

[0025] Figure 6 It is the front view of the utility model.

[0026] Figure 7 It is a cross-sectional view of the utility model.

[0027] Figure 8 It is a structural schematic diagram of the valve core assembly of the utility model.

[0028] Fig. 9 It is a structural schematic diagram of the valve body of the utility model.

[0029] Fig.10 The utility model Fig. 9 Cross-sectional view at point B.

[0030] In the figure: 10, integrated frame; 11, main air inlet; 12, auxiliary air inlet; 121, fourth plug; 20, vacuum generating unit; 30, valve body; 31, air supply channel; 311, first air channel; 312, third air channel; 313, fifth air channel; 32, valve chamber; 321, left chamber; 322, middle chamber; 323, right chamber; 324, valve core assembly; 325, left valve core; 326, right valve core; 327, elastic member; 328, left valve port; 329, right valve port; 33, exhaust channel; 331, second air channel; 332, fourth air channel; 34, vacuum channel ;35. Main air inlet hole;351. Main air inlet channel;36. Auxiliary air inlet hole;361. Auxiliary air inlet channel;37. First annular plug;371. First socket;38. Second annular plug;381. Second socket;39. First plug;40. Vacuum pilot valve;41. Vacuum pilot channel;411. First channel;412. Second channel;50. Vacuum-breaking pilot valve;51. Vacuum-breaking pilot channel;511. Third channel;512. Fourth channel;60. First sealing ring;70. Second sealing ring;80. Muffler;90. Fixed seat;100. Connector. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings.

[0032] like Figure 1-10 As shown, an integrated vacuum generator includes an integrated frame 10 and a plurality of vacuum generating units 20 integrated on the integrated frame 10. The vacuum generating unit 20 includes a valve body 30, a vacuum pilot valve 40 and a vacuum breaking pilot valve 50. The valve body 30 is provided with an air supply channel 31, a valve cavity 32, an exhaust channel 33, a vacuum channel 34, a first air channel 311, a second air channel 331 and a third air channel 312. A muffler 80 is provided at a position of the valve body 30 corresponding to the outlet of the exhaust channel 33. A valve core assembly 324 is provided in the valve cavity 32. The first air channel 311 connects the air supply channel 31 with the second air channel 331. The valve cavity 32, the second air channel 331 connects the exhaust channel 33 and the valve cavity 32. In the utility model, the first air channel 311 is provided with two. The first air channel 311 on the left connects the air supply channel 31 and the left chamber 321 of the valve cavity 32, and the first air channel 311 on the right connects the air supply channel 31 and the right chamber 323 of the valve cavity 32. By introducing positive pressure gas into the air supply channel 31, a part of the positive pressure gas flows into the first air channel 311 on the left, and then flows into the left chamber 321, and the other part of the positive pressure gas flows into the first air channel 311 on the right, and then flows into the right chamber 323.

[0033] The valve chamber 32 includes a left chamber 321, a middle chamber 322 and a right chamber 323. The valve core assembly 324 includes a left valve core 325, a right valve core 326 and an elastic member 327 disposed between the two valve cores. The left valve core 325 is disposed in the left chamber 321. The left chamber 321 is provided with a left valve port 328 for connecting the first air passage 311 and the second air passage 331. The outer periphery of the left valve core 325 is provided with a first sealing member for sealing the left valve port 328. The valve body 30 is provided with a right valve port 329 for connecting the vacuum breaking pilot channel 51 and the third air channel 312. Correspondingly, the right valve port 329 is also used to connect the third air channel 312 with the first air channel 311 on the right side. The outer periphery of the right valve core 326 is provided with a second sealing member for sealing the right valve port 329. The valve body 30 is provided with a fifth air channel 313 connected to the intermediate chamber 322. The fifth air channel 313 is used to store or exhaust the gas in the intermediate chamber 322.

[0034] The vacuum pilot channel 41 includes a first channel 411 and a second channel 412, the first channel 411 connects the valve chamber 32 with the vacuum pilot valve 40, the second channel 412 connects the vacuum pilot valve 40 with the left chamber 321, and the first channel 411 and the second channel 412 are opened and closed by the vacuum pilot valve 40; the vacuum breaking pilot channel 51 includes a third channel 511 and a fourth channel 512, the third channel 511 connects the valve chamber 32 with the vacuum breaking pilot valve 50, and the fourth channel 512 connects the vacuum breaking pilot valve 50 with the right valve chamber 32, and the third channel 511 and the fourth channel 512 are opened and closed by the vacuum breaking pilot valve 50. In the utility model, in order to reduce the number of channels, the first channel 411 and the third channel 511 are integrated into one channel, that is, the first channel 411 also serves as the third channel 511 or the third channel 511 also serves as the first channel 411.

[0035] The vacuum pilot valve 40 controls the opening and closing of the vacuum pilot channel 41, that is, by controlling the opening and closing of the first channel 411 and the second channel 412, to control the position of the valve core assembly 324, that is, controls the position of the left valve core 325, thereby controlling the opening and closing of the first air channel 311 and the second air channel 331; the third air channel 312 is connected to the outside and the valve chamber 32, and the vacuum breaking pilot valve 50 controls the opening and closing of the vacuum breaking pilot channel 51, that is, by controlling the opening and closing of the third channel 511 and the fourth channel 512, to control the position of the valve core assembly 324, that is, controls the position of the right valve core 326, thereby controlling the opening and closing of the third air channel 312 and the first air channel 311.

[0036] The valve body 30 is provided with a muffler 80 at a position corresponding to the outlet of the exhaust channel 33 . The setting of the muffler 80 is conventional technology and will not be described in detail in the present utility model. The exhaust channel 33 is connected to the vacuum channel 34 through the fourth air channel 332 .

[0037] A main air inlet 11 is provided on the integrated frame 10, and a plurality of valve bodies 30 are provided with main air inlet holes 35 connected to the corresponding air supply channels 31. The main air inlet holes 35 of adjacent valve bodies 30 are sealed and connected to form a main air inlet channel 351, and the main air inlet 11 is connected to the main air inlet channel 351.

[0038] The valve body 30 of the vacuum generating unit 20 is originally provided with a separate air inlet hole connected to the air supply channel 31. The utility model adopts a unified main air inlet port 11 to ventilate the main air inlet channel 351, and seals the separate air inlet hole of the original valve body 30 through a third plug.

[0039] The valve body 30 is provided with a first annular plug 37 at one end corresponding to the main air inlet hole 35, and a first socket 371 for inserting the first annular plug 37 at the other end. The first annular plug 37 is adapted to be inserted into the first socket 371, and the first socket 371 is provided with a first sealing ring 60 that seals with the outer wall of the first annular plug 37. The first annular plug 37 of the valve body 30 is inserted into the first socket 371 adjacent to the valve body 30 or the position of the main air inlet channel 351 corresponding to the integrated frame 10, so that when several valve bodies 30 are press-fitted in series, the main air inlet holes 35 of adjacent valve bodies 30 are sealed and connected to form the main air inlet channel 351, and at the same time, the main air inlet 11 is sealed and connected to the main air inlet channel 351.

[0040] The integrated vacuum generator of the utility model has multiple vacuum generating units 20 that adopt a unified main air inlet 11 and a main air inlet channel 351 for ventilation, which reduces the number of connecting air pipes, makes the overall structure more compact, has a smaller volume, and is more convenient to assemble.

[0041] In this embodiment, the working principle of the integrated vacuum generator is as follows: positive pressure gas is introduced into the main air inlet 11, and the positive pressure gas enters the main air inlet channel 351, the air supply channel 31, the first air channel 311, and the vacuum pilot channel 41. When the vacuum pilot valve 40 is energized, the vacuum pilot channel 41 is opened. At this time, the positive pressure gas entering the vacuum pilot channel 41 enters the left chamber 321 and pushes the left valve core 325 toward the right side, so that the left valve port 328 is opened, and the first air channel 311 and the second air channel 331 are connected, so that the positive pressure gas enters the main air inlet channel 351, the air supply channel 31, the first air channel 311, and the second air channel 331 in turn, and is finally discharged from the exhaust channel 33, and the positive pressure gas flows through the exhaust channel at a high speed. When the vacuum channel 33 is opened, negative pressure will be generated, and the air in the vacuum channel 34 will be extracted through the fourth air channel 332, so that negative pressure will be generated at the vacuum port, which can be connected to the suction cup through an air pipe to perform the operation of adsorbing the workpiece; after the adsorption operation is completed, the vacuum pilot valve 40 is powered off, and the vacuum-breaking pilot valve 50 is powered on, and the left valve core 325 is reset under the action of the elastic member 327, so that the left valve port 328 is blocked, and the vacuum-breaking pilot channel 51 is opened, and the positive-pressure gas enters the right chamber 323 and pushes the right valve core 326 to move to the left. At this time, the right valve port 329 is opened, and the first air channel 311 is connected to the third air channel 312, so that the positive-pressure gas is directly discharged from the first air channel 311 and the third air channel 312 to the outside, thereby eliminating the adsorption effect of the vacuum port.

[0042] Auxiliary air inlet holes 36 are provided on the multiple valve bodies 30. The auxiliary air inlet holes 36 of adjacent valve bodies 30 are sealed and connected to form an auxiliary air inlet channel 361. The auxiliary air inlet channel 361 is connected to the valve cavity 32 on the side of the corresponding vacuum breaking pilot channel 51. The air supply channel 31 is used to connect the opening of the valve cavity 32 on the side of the corresponding vacuum breaking pilot channel 51 and is sealed by a first plug 39. The integrated frame 10 is provided with an auxiliary air inlet port 12, which is connected to the auxiliary air inlet channel 361. The opening of the exhaust channel 33 is sealed by a second plug. When not in use, the auxiliary air inlet hole 36 can be sealed by a fourth plug 121.

[0043] Furthermore, a second annular plug 38 is provided at one end of the valve body 30 corresponding to the secondary air inlet hole 36, and a second socket 381 for inserting the second annular plug 38 is provided at the other end. A second sealing ring 70 is provided at the second socket 381 for sealingly matching the outer wall of the second annular plug 38. The second annular plug 38 of the valve body 30 is inserted into the second socket 381 adjacent to the valve body 30 or the position of the main air inlet channel 351 corresponding to the integrated frame 10, so that when several valve bodies 30 are pressed into one in series, the secondary air inlet holes 36 of adjacent valve bodies 30 are sealed and connected to form a secondary air inlet channel 361, and at the same time, the secondary air inlet 12 is sealed and connected to the secondary air inlet channel 361.

[0044] The integrated vacuum generator of the utility model is provided with an auxiliary air inlet hole 36 on the integrated frame 10, and an auxiliary air inlet channel 361 is formed on the multiple vacuum generating units 20. When the integrated vacuum generator is in a vacuum environment, that is, in a scenario with a vacuum pump, the integrated vacuum valve generator can also be used as a solenoid valve. For example, the user introduces positive pressure gas into the auxiliary air inlet 12. When the vacuum pilot valve 40 is energized, the auxiliary air inlet channel 361 is connected with the vacuum pilot channel 41, that is, the first channel 411 and the second channel 412 are connected. The positive pressure gas drives the left valve core 325 to move to the right to open the left valve port 328. At this time, the user introduces vacuum gas (negative pressure air) into the main air inlet 11. The vacuum gas enters the main air inlet channel 351, the air supply channel 31, the first air channel 311, the second air channel 331, the exhaust channel 33, the fourth air channel 332 in sequence, and finally enters the vacuum channel 34, thereby forming a negative pressure at the vacuum port of the vacuum channel 34.

[0045] The main air inlet channel 351 is sealed at a side away from the main air inlet port 11, and the auxiliary air inlet channel 361 is sealed at a side away from the auxiliary air inlet port 12. In this embodiment, there is only one main air inlet port 11 and one auxiliary air inlet port 12, thereby achieving unified air supply and reducing the existing messy air pipe connections caused by too many air pipes, which also causes the vacuum generator to be too large.

[0046] The integrated frame 10 includes two side blocks and a back block connecting the two side ends. The two side blocks are respectively provided with main air inlets 11. The main air inlet 11 of the left block is connected to the left side of the main air inlet channel 351, and the main air inlet 11 of the right block is connected to the right side of the main air inlet channel 351. In this embodiment, the main air inlets 11 are respectively provided on both sides of the integrated frame 10, so that the user can selectively use one of the main air inlet 11, and the other main air inlet 11 can be sealed by a sealing piece, so that the air pipe connection of the integrated vacuum generator is more convenient.

[0047] Furthermore, auxiliary air inlets 12 are respectively provided on the two side blocks. The auxiliary air inlet 12 of the left block is connected to the left side of the auxiliary air inlet channel 361, and the auxiliary air inlet 12 of the right block is connected to the right side of the auxiliary air inlet channel 361. The integrated frame 10 can selectively block the auxiliary air inlet 12, so that the user can selectively use one of the auxiliary air inlet 12, and the other auxiliary air inlet 12 can be sealed by a blocking piece, so that the air pipe connection of the integrated vacuum generator is more convenient.

[0048] The valve body 30 is provided with a sixth air channel, one end of the sixth channel is connected to the left side of the right valve cavity 32 corresponding to the right valve port 329, and the other end is connected to the auxiliary air intake channel 361. Since the first sealing plug blocks the air supply channel 31, it is used to connect the opening of the valve cavity 32 on the side corresponding to the vacuum breaking pilot channel 51, that is, the right second air channel 331 is blocked by the first sealing plug, so that the sixth air channel and the auxiliary air intake channel 361 are isolated from the air supply channel 31.

[0049] The side end of the integrated frame 10 is connected to a fixing seat 90, and a connector 100 is installed on the fixing seat 90. A first wire groove is provided in the fixing seat 90, and the integrated frame 10 is provided with a second wire groove for the electrical connection wire of the vacuum generating unit 20 to pass through, so that the electrical connection on the vacuum generating unit 20 can be electrically connected to the connector 100 through the second wire groove and the first wire groove in sequence. Further, the connector 100 is a multi-pin connector 100, which is detachably connected to the fixing seat 90, and the electrical connection wires of each vacuum generating unit 20 are uniformly connected through the multi-pin connector 100, so that the lines can be arranged in an orderly manner.

[0050] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An integrated vacuum generator, characterized in that: The invention comprises an integrated frame (10) and a plurality of vacuum generating units (20) integrated on the integrated frame (10); the vacuum generating units (20) comprise a valve body (30), a vacuum pilot valve (40) and a vacuum breaking pilot valve (50); the valve body (30) is provided with an air supply channel (31), a valve chamber (32), an exhaust channel (33), a vacuum channel (34), a first air channel (311), a second air channel (331) and a third air channel (312); a muffler (80) is provided at a position of the valve body (30) corresponding to the outlet of the exhaust channel (33); a valve core assembly (324) is provided in the valve chamber (32); the first air channel (311) connects the air supply channel (31) and the valve chamber (32); the second air channel (331) connects the exhaust channel (33) and the valve chamber (32); the vacuum pilot valve (40) controls the on / off of the vacuum pilot channel (41) to control the vacuum pressure; The position of the valve core assembly (324) is controlled, thereby controlling the connection and disconnection of the first air channel (311) and the second air channel (331); the third air channel (312) is connected to the outside and the valve chamber (32); the vacuum breaking pilot valve (50) controls the position of the valve core assembly (324) by controlling the connection and disconnection of the vacuum breaking pilot channel (51), thereby controlling the connection and disconnection of the third air channel (312) and the first air channel (311); the exhaust channel (33) is connected to the vacuum channel (34) through the fourth air channel (332); a main air inlet (11) is provided on the integrated frame (10); a main air inlet hole (35) connected to the corresponding air supply channel (31) is provided on a plurality of valve bodies (30); the main air inlet holes (35) of adjacent valve bodies (30) are sealed and connected to form a main air inlet channel (351); the main air inlet (11) is connected to the main air inlet channel (351).

2. An integrated vacuum generator according to claim 1, characterized in that: Auxiliary air inlet holes (36) are provided on the plurality of valve bodies (30), and the auxiliary air inlet holes (36) of adjacent valve bodies (30) are sealed and connected to form an auxiliary air inlet channel (361), and the auxiliary air inlet channel (361) is connected to the valve cavity (32) on the side of the corresponding vacuum breaking pilot channel (51), and the air supply channel (31) is used to connect to the opening of the valve cavity (32) on the side of the corresponding vacuum breaking pilot channel (51) and is sealed by a first plug (39), and the integrated frame (10) is provided with an auxiliary air inlet port (12), and the auxiliary air inlet port (12) is connected to the auxiliary air inlet channel (361), and the opening of the exhaust channel (33) is sealed by a second plug.

3. An integrated vacuum generator according to claim 2, characterized in that: The main air intake passage (351) is sealed at a side away from the main air intake port (11), and the auxiliary air intake passage (361) is sealed at a side away from the auxiliary air intake port (12).

4. An integrated vacuum generator according to claim 1 or 2, characterized in that: The valve body (30) is provided with a first annular plug post (37) at one end corresponding to the main air inlet hole (35), and a first socket (371) for inserting the first annular plug post (37) at the other end. The first socket (371) is provided with a first sealing ring (60) that is sealed with the outer wall of the first annular plug post (37). The first annular plug post (37) of the valve body (30) is inserted into the first socket (371) adjacent to the valve body (30) or the position of the main air inlet channel (351) of the integrated frame (10).

5. The integrated vacuum generator according to claim 2, characterized in that: The valve body (30) is provided with a second annular plug (38) at one end corresponding to the secondary air inlet hole (36), and a second socket (381) for inserting the second annular plug (38) at the other end, and a second sealing ring (70) is provided at the second socket (381) for sealingly matching the outer wall of the second annular plug (38). The second annular plug (38) of the valve body (30) is inserted into the second socket (381) adjacent to the valve body (30) or the position of the main air inlet channel (351) of the integrated frame (10).

6. An integrated vacuum generator according to claim 1 or 2, characterized in that: The integrated frame (10) comprises two side blocks and a back block connecting the two side ends, and the two side blocks are respectively provided with main air inlets (11), the main air inlet (11) of the left side block is connected to the left side of the main air inlet channel (351), and the main air inlet (11) of the right side block is connected to the right side of the main air inlet channel (351).

7. An integrated vacuum generator according to claim 6, characterized in that: Auxiliary air inlets (12) are respectively provided on the two side blocks; the auxiliary air inlet (12) of the left side block is connected to the left side of the auxiliary air inlet channel (361); the auxiliary air inlet (12) of the right side block is connected to the right side of the auxiliary air inlet channel (361); and the integrated frame (10) can selectively block the auxiliary air inlet (12).

8. The integrated vacuum generator according to claim 2, characterized in that: The valve cavity (32) comprises a left chamber (321), an intermediate chamber (322) and a right chamber (323); the valve core assembly (324) comprises a left valve core (325), a right valve core (326) and an elastic member (327) arranged between the two valve cores; the left valve core (325) is arranged in the left chamber (321); a left valve port (328) for connecting the first air channel (311) and the second air channel (331) is arranged in the left chamber (321); a first sealing member for sealing the left valve port (328) is arranged on the outer periphery of the left valve core (325); a right valve port (329) for connecting the vacuum breaking pilot channel (51) and the third air channel (312) is arranged on the outer periphery of the right valve core (326); and the valve body (30) is provided with a fifth air channel (313) connected to the intermediate chamber (322).

9. An integrated vacuum generator according to claim 8, characterized in that: The vacuum pilot channel (41) comprises a first channel (411) and a second channel (412); the first channel (411) connects the valve chamber (32) and the vacuum pilot valve (40); the second channel (412) connects the vacuum pilot valve (40) and the left chamber (321); the first channel (411) and the second channel (412) are connected by the vacuum pilot valve (40); the vacuum breaking pilot channel (51) comprises a third channel (511) and a fourth channel (512); the third channel (511) connects the valve chamber (32) and the vacuum breaking pilot valve (50); the fourth channel (512) connects the vacuum breaking pilot valve (50) and the right valve chamber (32); the third channel (511) and the fourth channel (512) are connected by the vacuum breaking pilot valve (50); 10. The integrated vacuum generator according to claim 1, characterized in that: A fixing seat (90) is connected to the side end of the integrated frame (10), a connector (100) is installed on the fixing seat (90), a first wire-through groove is provided in the fixing seat (90), and a second wire-through groove is provided on the integrated frame (10) for the electrical connection wire of the vacuum generating unit (20) to pass through, so that the electrical connection on the vacuum generating unit (20) can be electrically connected to the connector (100) through the second wire-through groove and the first wire-through groove in sequence.

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