Integrated vacuum generating device

Abstract

The utility model discloses an integrated vacuum generating device, which comprises a control unit, an integrated frame and a plurality of vacuum generating units integrated on the integrated frame, each vacuum generating unit comprises a valve body and a pressure sensor connected with the valve body, and the valve body is provided with a vacuum channel and a detection channel communicated with the vacuum channel. The pressure sensors monitor the pressure value in the vacuum channel in real time through the detection channel, the control unit comprises a bus module, an electric connecting wire of the pressure sensor on each vacuum generation unit is electrically connected with the bus module, and the electric connecting wire of the pressure sensor is connected to the bus module. The bus module carries out logic control on the vacuum pilot valve and the vacuum breaking pilot valve of the vacuum generation unit according to the real-time pressure signal transmitted by the pressure sensor, and compared with a traditional vacuum pressure gauge which is independently connected with wires and independently controlled, the vacuum pressure gauge is convenient to assemble, lower in cost and better in overall control effect.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum generators, and particularly relates to an integrated vacuum generating device. Background Art

[0002] A vacuum generator is a vacuum component that uses a positive pressure air source to generate negative pressure. Generally, compressed gas is used as the positive pressure air source. Vacuum generators are generally applied to the adsorption and handling of various materials. An existing integrated vacuum generator and its usage method disclosed in a Chinese patent (application publication number CN111692138A) includes a gas 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 an internal vacuum generating tube and a vacuum chamber; the valve body is provided with a valve core chamber and an internal valve passage; the valve core is arranged in the valve core chamber; the gas supply device is communicated with the valve core chamber; the valve core chamber is communicated with the vacuum pilot valve and the vacuum-breaking pilot valve through the internal valve passage. The vacuum pressure in each vacuum passage in the valve body is monitored in real time through the vacuum pressure gauge. When the pressure in the vacuum passage measured by the vacuum pressure gauge is lower than the lower limit value of the preset pressure range, the vacuum pilot valve is turned on, and the internal valve passage is communicated with the vacuum generating tube through the vacuum pilot valve; when the pressure in the vacuum passage measured by the vacuum pressure gauge is higher than the upper limit value of the preset pressure range, the vacuum pilot valve is turned off.

[0003] For the existing integrated vacuum generating device, although the electrical connection wires of the vacuum pilot valve and the vacuum-breaking pilot valve on each group of vacuum generating units are electrically connected to the bus module, the vacuum pressure gauges at each group of vacuum generating units need to be individually wired and individually controlled, which not only makes assembly inconvenient and costly, but also is not convenient for overall control. Summary of the Invention

[0004] The purpose of the utility model is to provide an integrated vacuum generating device, which connects the electrical connection wire of the pressure sensor to the bus module, and the bus module performs logical control on the vacuum pilot valve and the vacuum-breaking pilot valve of the vacuum generating unit according to the real-time pressure signal transmitted by the pressure sensor. Compared with the traditional separate wiring and separate control of the vacuum pressure gauge, it is not only convenient for assembly, lower in cost, but also better in overall control effect.

[0005] The above technical object of the utility model is achieved by the following technical solutions: An integrated vacuum generating device includes a control unit, an integrated frame, and a plurality of vacuum generating units integrated on the integrated frame. The vacuum generating unit includes a valve body and a pressure sensor connected to the valve body. The valve body is provided with a vacuum channel and a detection channel communicating with the vacuum channel. The pressure sensor monitors the pressure value in the vacuum channel in real time through the detection channel. The control unit includes a bus module, and the electrical connection lines of the pressure sensors on each vacuum generating unit are electrically connected to the bus module.

[0006] Further, each of the vacuum generating units includes a vacuum pilot valve and a vacuum-breaking pilot valve. The electrical connection lines of the vacuum pilot valve and the vacuum-breaking pilot valve are electrically connected to the bus module. The pressure sensor transmits the real-time pressure signal detected to the bus module, and the bus module controls the vacuum pilot valve and the vacuum-breaking pilot valve on the vacuum generating unit corresponding to the pressure sensor according to the real-time pressure signal transmitted by each pressure sensor.

[0007] Further, an installation frame is provided on one side of the valve body corresponding to the pressure sensor. A wire routing channel extending horizontally is provided on the side of the installation frame adjacent to the valve body. A communication port communicating with the wire routing channel is provided on the side of the control unit corresponding to the installation frame. The installation frame is provided with through holes communicating with the wire routing channel, and the electrical connection line of the pressure sensor sequentially passes through the through holes, the wire routing channel, and the communication port to be electrically connected to the bus module.

[0008] Further, a plurality of installation frames are provided. Each installation frame corresponds to a pressure sensor, and the wire routing channels between adjacent installation frames are connected in communication. The electrical connection line of the pressure sensor enters the wire routing channel through the corresponding through hole and passes through the communication port to be electrically connected to the bus module.

[0009] Further, the installation frame is an integral frame. The installation frame is provided with pressure sensor installation positions corresponding to the valve bodies one by one and through holes corresponding to the valve bodies one by one. The electrical connection line of the pressure sensor enters the wire routing channel through the corresponding through hole and passes through the communication port to be electrically connected to the bus module.

[0010] Further, the vacuum pilot valve and the vacuum-breaking pilot valve are arranged on the side of the valve body facing the installation frame. Wiring grooves communicating with the bus channel are provided at the positions of the valve body corresponding to the vacuum pilot valve and the vacuum-breaking pilot valve. The electrical connection lines of the vacuum pilot valve and the vacuum-breaking pilot valve sequentially pass through the wiring grooves, the wire routing channels, and the communication ports to be electrically connected to the bus module.

[0011] Further, the wiring groove penetrates through the upper end of the valve body, and the vacuum pilot valve and the vacuum-breaking pilot valve are arranged at the upper end of the wiring groove and block the wiring groove.

[0012] Further, an upper shielding part is provided at the upper end of the mounting bracket corresponding to the wire routing channel, a lower shielding part is provided at the lower end of the mounting bracket corresponding to the wire routing channel, and an outer shielding part is provided on the outer side of the mounting bracket corresponding to the wire routing channel. The inner side of the wire routing channel is shielded by a vacuum generating unit.

[0013] Further, a wiring hole is provided in the mounting bracket, and the wiring hole communicates with the wire routing channel through a through hole, so that the electrical connection wire of the pressure sensor can enter the wire routing channel through the wiring hole and the through hole.

[0014] In summary, the utility model has the following beneficial effects:

[0015] For the integrated vacuum generating device of the utility model, the electrical connection wire of the pressure sensor is connected to the bus module, and the bus module performs logical control on the vacuum pilot valve and the vacuum breaking pilot valve of the vacuum generating unit according to the real-time pressure signal transmitted by the pressure sensor. Compared with the traditional vacuum pressure gauge with separate wiring and separate control, it is not only convenient for assembly, lower in cost, but also better in overall control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 is a cross-sectional view of the utility model.

[0018] Figure 3 is a schematic diagram of the communication port of the utility model.

[0019] Figure 4 is a schematic diagram of the installation position of the pressure sensor of the utility model.

[0020] Figure 5 is a schematic diagram of the structure of the mounting bracket of the utility model.

[0021] Figure 6 is a cross-sectional view of the mounting bracket of the utility model.

[0022] In the figure: 10, control unit; 11, communication port; 20, integrated bracket; 30, vacuum generating unit; 31, valve body; 311, vacuum channel; 312, detection channel; 313, wiring groove; 32, pressure sensor; 33, vacuum pilot valve; 34, vacuum breaking pilot valve; 35, mounting bracket; 351, wire routing channel; 352, through hole; 353, upper shielding part; 354, lower shielding part; 355, outer shielding part; 356, wiring hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the utility model with reference to the drawings.

[0024] As Figures 1-6As shown in the figure, an integrated vacuum generating device includes a control unit 10, an integrated frame 20, and a number of vacuum generating units 30 integrated on the integrated frame 20. Each vacuum generating unit 30 includes a valve body 31 and a pressure sensor 32 connected to the valve body 31. The valve body 31 is provided with a vacuum passage 311 and a detection passage 312 communicating with the vacuum passage 311. The pressure sensor 32 monitors the pressure value in the vacuum passage 311 in real time through the detection passage 312. The control unit 10 includes a bus module. The electrical connection lines of the pressure sensors 32 on each vacuum generating unit 30 are electrically connected to the bus module. Specifically, the pressure sensor 32 transmits the pressure signal detected in real time to the bus module, and the bus module analyzes and processes the pressure signal, and then performs logical control on the corresponding vacuum generating unit 30 according to the processed signal. For example, logical control is performed on the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 of the corresponding vacuum generating unit 30.

[0025] In some embodiments, each vacuum generating unit 30 includes a vacuum pilot valve 33 and a vacuum-breaking pilot valve 34. The electrical connection lines of the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 are electrically connected to the bus module. The pressure sensor 32 transmits the pressure signal detected in real time to the bus module, and the bus module controls the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 on the vacuum generating unit 30 corresponding to the pressure sensor 32 according to the real-time pressure signal transmitted by each pressure sensor 32.

[0026] In some embodiments, an installation frame 35 is provided on one side of the valve body 31 corresponding to the pressure sensor 32. A horizontally extending wire routing passage 351 is provided on the side of the installation frame 35 adjacent to the valve body 31. A communication port 11 communicating with the wire routing passage 351 is provided on the side of the control unit 10 corresponding to the installation frame 35. The installation frame 35 is provided with a through hole 352 communicating with the wire routing passage 351. The electrical connection line of the pressure sensor 32 is electrically connected to the bus module through the through hole 352, the wire routing passage 351, and the communication port 11 in sequence. In this embodiment, the electrical connection lines of each sensor are electrically connected to the bus module through the wire routing passage 351, so that the electrical connection lines can be arranged more neatly.

[0027] In some embodiments, a plurality of mounting brackets 35 are provided. Each mounting bracket 35 corresponds to a pressure sensor 32. The wire routing channels 351 between adjacent mounting brackets 35 are communicatively connected. The electrical connection wires of the pressure sensors 32 enter the wire routing channels 351 through the corresponding through holes 352 and are electrically connected to the bus module through the communication ports 11. In this embodiment, the number of the mounting brackets 35 provided is matched with the number of the pressure sensors 32, so that the number of the vacuum generating units 30 and the number of the mounting brackets 35 can be correspondingly adjusted as needed. For example, when the number of the vacuum generating units 30 needs to be reduced, the mounting bracket 35 corresponding to the vacuum generating unit 30 can be disassembled together.

[0028] In some embodiments, the mounting bracket 35 is an integral frame. A pressure sensor 32 mounting position corresponding to the valve body 31 one by one and a through hole 352 corresponding to the valve body 31 one by one are provided inside the mounting bracket 35. The electrical connection wires of the pressure sensors 32 enter the wire routing channels 351 through the corresponding through holes 352 and are electrically connected to the bus module through the communication ports 11. In this embodiment, by integrally designing the mounting bracket 35, it is convenient for the overall installation of the pressure sensors 32. In addition, it can reduce the entry of dust and other impurities into the wire routing channels 351, playing a good dust-proof role.

[0029] In some embodiments, the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 are arranged on one side of the valve body 31 facing the mounting bracket 35. Wiring grooves 313 communicating with the bus channel are provided at positions of the valve body 31 corresponding to the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34. The electrical connection wires of the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 are electrically connected to the bus module through the wiring grooves 313, the wire routing channels 351, and the communication ports 11 in sequence. Through this arrangement, the electrical connection wires of the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 can also be electrically connected to the bus module through the wire routing channels 351. On the one hand, it can ensure that the wiring is more tidy. On the other hand, it is convenient for the electrical connection wires of the vacuum pilot valve 33, the vacuum-breaking pilot valve 34, and the pressure sensor 32 to be connected to the bus module.

[0030] In some embodiments, the wiring groove 313 penetrates through the upper end of the valve body 31. The vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 are arranged at the upper end of the wiring groove 313 and cover the wiring groove 313, so as to shield and protect the electrical connection wires of the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34, avoiding the exposure of the above electrical connection wires to the outside and affecting their service life. The hidden design can make the vacuum generator more beautiful.

[0031] In some embodiments, an upper shielding portion 353 is provided at the upper end of the mounting bracket 35 corresponding to the wire routing channel 351, a lower shielding portion 354 is provided at the lower end of the mounting bracket 35 corresponding to the wire routing channel 351, and an outer shielding portion 355 is provided on the outer side of the mounting bracket 35 corresponding to the wire routing direction. The inner side of the wire routing channel 351 is shielded by the vacuum generating unit 30. That is, the wire routing channel 351 is surrounded by the upper shielding portion 353, the outer shielding portion 355, the lower shielding portion 354, and the vacuum generating unit 30. Thus, the electrical connection wires of the vacuum pilot valve 33, the vacuum-breaking pilot valve 34, and the pressure sensor 32 can be hidden in the wire routing channel 351, which plays a role in protecting the electrical connection. In addition, the overall aesthetics of the integrated vacuum generating device can be ensured.

[0032] In some embodiments, a wiring hole 356 is provided in the mounting bracket 35, and the wiring hole 356 is connected to the wire routing channel 351 through a through hole 352, so that the electrical connection wire of the pressure sensor 32 can enter the wire routing channel 351 through the wiring hole 356 and the through hole 352.

[0033] In summary, the present utility model has the following beneficial effects:

[0034] For the integrated vacuum generating device of the present utility model, the electrical connection wire of the pressure sensor 32 is connected to the bus module, and the bus module performs logical control on the vacuum pilot valve 33 and the vacuum-breaking pilot valve 34 of the vacuum generating unit 30 according to the real-time pressure signal transmitted by the pressure sensor 32. Compared with the traditional separate wiring and separate control of the vacuum pressure gauge, it is not only convenient for assembly, lower in cost, but also better in the overall control effect.

[0035] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. An integrated vacuum generating device, comprising a control unit (10), an integrated frame (20), and a plurality of vacuum generating units (30) integrated on the integrated frame (20), characterized in that: The vacuum generating unit (30) includes a valve body (31) and a pressure sensor (32) connected to the valve body (31). The valve body (31) is provided with a vacuum channel (311) and a detection channel (312) communicating with the vacuum channel (311). The pressure sensor (32) monitors the pressure value in the vacuum channel (311) in real time through the detection channel (312). The control unit (10) includes a bus module, and the electrical connection lines of the pressure sensors (32) on each vacuum generating unit (30) are electrically connected to the bus module.

2. The integrated vacuum generating device according to claim 1, characterized in that: Each of the vacuum generating units (30) includes a vacuum pilot valve (33) and a vacuum-breaking pilot valve (34). The electrical connection lines of the vacuum pilot valve (33) and the vacuum-breaking pilot valve (34) are electrically connected to the bus module. The pressure sensor (32) transmits the pressure signal detected in real time to the bus module, and the bus module controls the vacuum pilot valve (33) and the vacuum-breaking pilot valve (34) on the vacuum generating unit (30) corresponding to the pressure sensor (32) according to the real-time pressure signal transmitted by each pressure sensor (32).

3. The integrated vacuum generating device according to claim 2, wherein: On one side of the valve body (31) corresponding to the pressure sensor (32), there is an installation bracket (35). On the side of the installation bracket (35) adjacent to the valve body (31), there is a horizontally extending wire routing channel (351). On one side of the control unit (10) corresponding to the installation bracket (35), there is a communication port (11) communicating with the wire routing channel (351). The installation bracket (35) is provided with a through hole (352) communicating with the wire routing channel (351). The electrical connection line of the pressure sensor (32) is electrically connected to the bus module through the through hole (352), the wire routing channel (351), and the communication port (11) in sequence.

4. An integrated vacuum generating device according to claim 3, characterized in that: There are multiple installation brackets (35). Each installation bracket (35) corresponds to a pressure sensor (32). The wire routing channels (351) between adjacent installation brackets (35) are connected in communication. The electrical connection line of the pressure sensor (32) enters the wire routing channel (351) through the corresponding through hole (352) and passes through the communication port (11) to be electrically connected to the bus module.

5. The integrated vacuum generating device according to claim 3, wherein: The installation bracket (35) is an integral frame. Inside the installation bracket (35), there are pressure sensor installation positions corresponding to the valve bodies (31) one by one and through holes (352) corresponding to the valve bodies (31) one by one. The electrical connection line of the pressure sensor (32) enters the wire routing channel (351) through the corresponding through hole (352) and passes through the communication port (11) to be electrically connected to the bus module.

6. The integrated vacuum generating device according to claim 3, characterized in that: The vacuum pilot valve (33) and the vacuum-breaking pilot valve (34) are arranged on the side of the valve body (31) facing the installation bracket (35). At the positions of the valve body (31) corresponding to the vacuum pilot valve (33) and the vacuum-breaking pilot valve (34), there are wiring grooves (313) communicating with the bus channel. The electrical connection lines of the vacuum pilot valve (33) and the vacuum-breaking pilot valve (34) are electrically connected to the bus module through the wiring grooves (313), the wire routing channels (351), and the communication ports (11) in sequence.

7. An integrated vacuum generating device according to claim 6, characterized in that: The wiring groove (313) penetrates through the upper end of the valve body (31), and the vacuum pilot valve (33) and the vacuum-breaking pilot valve (34) are arranged at the upper end of the wiring groove (313) and block the wiring groove (313).

8. An integrated vacuum generating device according to any one of claims 3-7, characterized in that: The mounting bracket (35) is provided with an upper shielding portion (353) corresponding to the upper end of the wire routing channel (351), a lower shielding portion (354) corresponding to the lower end of the wire routing channel (351), and an outer shielding portion (355) corresponding to the outer side of the wire routing channel. The inner side of the wire routing channel (351) is blocked by the vacuum generating unit (30).

9. An integrated vacuum generating device according to claim 8, characterized in that: A wiring hole (356) is provided in the mounting bracket (35), and the wiring hole (356) is communicated with the wire routing channel (351) through a through hole (352), so that the electrical connection wire of the pressure sensor (32) can enter the wire routing channel (351) through the wiring hole (356) and the through hole (352).

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