Improved vacuum generator

Abstract

The utility model discloses an improved vacuum generator which is simple and compact in structure and beneficial to device miniaturization. The improved vacuum generator comprises a confluence valve unit, a vacuum generation unit connected to the confluence valve unit and a control valve unit. The confluence valve unit is provided with a vacuum pressure sensor and a main conductive piece, and the main conductive piece is electrically connected with an external power supply circuit and the vacuum pressure sensor; the upper end of the confluence valve unit is further provided with a contact pin female seat electrically connected with the main conductive part, the control valve unit is provided with a switching conductive part and a contact pin, the contact pin is electrically connected with the power supply end of the control valve unit through the switching conductive part, and the contact pin leaks out of the lower end of the control valve unit. The main conductive part is electrically connected with the switching conductive part by being plugged with the pin female seat; the utility model relates to the technical field of vacuum equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum equipment, more specifically to an improved vacuum generator. Background Art

[0002] Vacuum components use vacuum pressure as a power source. As a means of achieving automation, they have been widely used in electronics, semiconductor component assembly, automobile assembly, automatic handling machinery, light industrial machinery, food machinery, medical machinery, printing machinery, plastic product machinery, packaging machinery, forging machinery, robots, and many other fields.

[0003] A vacuum generator is a pneumatic component that uses the flow of compressed air to form a certain degree of vacuum. Compared with a vacuum pump, it has a simple structure, small size, light weight, low price, easy installation, and is easy to combine with supporting parts. It can quickly create and release vacuum and is suitable for intermittent work with small flow rates and for decentralized use.

[0004] Existing vacuum generators are generally provided with a vacuum pressure sensor and a control valve (three-position five-way valve). The vacuum pressure sensor and the control valve are electrically connected to a power supply or a signal transmission component through a conductive member, respectively. Multiple wires need to be arranged. The conductive structure design for power supply and signal transmission is unreasonable, the structure is complex and occupies a large space. Utility Model Content

[0005] In view of the shortcomings and defects of the prior art, an improved vacuum generator with a simple and compact structure and conducive to miniaturization of the device is provided.

[0006] An improved vacuum generator, comprising:

[0007] A confluence valve unit, a vacuum generating unit connected to the confluence valve unit, and a control valve unit connected to the vacuum generating unit;

[0008] The control valve unit is energized to control the conduction or closing of the vacuum generation flow channel of the vacuum generation unit, or to control the conduction or closing of the vacuum destruction flow channel on the confluence valve unit, wherein the confluence valve unit is provided with a working port communicating with the vacuum generation flow channel and the vacuum destruction flow channel;

[0009] The confluence valve unit is provided with a vacuum pressure sensor and a main conductive member, and the main conductive member is electrically connected to an external power supply circuit and the vacuum pressure sensor;

[0010] The upper end of the confluence valve unit is also provided with a pin socket electrically connected to the main conductor, and the lower end of the control valve unit is provided with a pin, which is electrically connected to the power supply end of the control valve unit through a switching conductor. The pin is plugged into the pin socket to achieve electrical connection between the main conductor and the switching conductor.

[0011] After adopting the above structure, the improved vacuum generator of the utility model has the following advantages compared with the prior art: after the above improvement, when the control valve unit is connected to the upper end of the confluence valve unit, the pin on the control valve unit can be plugged into the pin female socket to realize the circuit conduction between the external power supply circuit, the main conductive part, the pin female socket, the pin, the transfer conductive part and the power supply end of the control valve, and no additional circuit is required to supply power or transmit signals to the control valve unit, and the structure is simple and compact;

[0012] And through the detachable connection structure between the pin and the pin socket, it has the characteristics of easy disassembly and assembly and simple maintenance.

[0013] As an improvement of the present utility model, a matching groove is provided in the middle of the confluence valve unit for assembling the vacuum generating unit.

[0014] As an improvement of the utility model, a fixing block is provided on the right side of the confluence valve unit, the fixing block is detachably connected to the confluence valve unit, the upper end of the fixing block and the upper end of the left side of the confluence valve unit are both higher than the setting of the vacuum generating unit, and the upper end of the fixing block is provided with a first accommodating space;

[0015] A second accommodating space is provided at the upper left end of the confluence valve unit;

[0016] There are two pin sockets, one of which is arranged in the first accommodating space, and the other is arranged in the second accommodating space.

[0017] As an improvement of the present invention, the first accommodation space and the second accommodation space are both structures that semi-enclose the female pin socket, and the outer openings of the first accommodation space and the second accommodation space are detachably connected with cover plates.

[0018] The upper end surfaces of the fixing block and the confluence valve unit are respectively provided with insertion holes for the insertion pins to pass through the insertion holes and be plugged into the pin socket.

[0019] As an improvement of the utility model, two pins are respectively arranged at two ends of the control valve unit, and the pins extend downward from the main body of the control valve unit.

[0020] Positioning blocks are respectively arranged at the lower parts of both ends of the control valve unit, and positioning grooves for the positioning blocks to fit into are respectively arranged at the upper ends of the confluence valve unit and the fixing block.

[0021] As an improvement of the present invention, the first accommodating space and the second accommodating space are respectively provided with a transverse slot, and the pin socket is provided with a fitting block which can be inserted into the slot transversely.

[0022] As an improvement of the utility model, transparent covers are respectively provided at both ends of the control valve unit, and an assembly space is formed between the transparent cover and the end of the control valve unit, and the assembly space is used to shield the switching conductive part and the power supply end of the control valve unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 It is a structural schematic diagram of the utility model in the exploded state of the unit components.

[0025] Figure 3 It is a schematic diagram of the flow of airflow when the vacuum is broken in the utility model.

[0026] Figure 4 It is a structural schematic diagram of the confluence valve unit of the utility model in a state where parts are exploded.

[0027] Figure 5 It is a structural schematic diagram of the fixing block of the utility model in the state of component explosion.

[0028] As shown in the figure: 1. Converging valve unit; 1.1. Working port; 1.2. Assembly groove; 1.3. Second assembly space; 2. Vacuum generating unit; 3. Control valve unit; 3.1. Power supply end; 4. Vacuum pressure sensor; 5. Main conductive part; 5.1. Wiring terminal; 6. Pin socket; 7. Adapter conductive part; 8. Pin; 9. Fixing block; 9.1. First accommodating space; 10. Cover plate; 11. Socket; 12. Positioning block; 13. Positioning groove; 14. Card slot; 16. Fitting block; 17. Transparent cover. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figure 1-5 As shown, an improved vacuum generator comprises:

[0031] A confluence valve unit 1, a vacuum generating unit 2 connected to the confluence valve unit 1, and a control valve unit 3 connected to the vacuum generating unit 2;

[0032] The control valve unit 3 is energized to control the opening or closing of the vacuum generation channel of the vacuum generation unit 2, or to control the opening or closing of the vacuum destruction channel on the confluence valve unit 1, wherein the confluence valve unit 1 is provided with a working port 1.1 connected to the vacuum generation channel and the vacuum destruction channel;

[0033] The confluence valve unit 1 is provided with a vacuum pressure sensor 4 and a main conductive member 5, and the main conductive member 5 is electrically connected to an external power supply circuit and the vacuum pressure sensor 4;

[0034] The upper end of the confluence valve unit 1 is also provided with a pin socket 6 electrically connected to the main conductor 5, and the lower end of the control valve unit 3 is provided with a pin 8, and the pin 8 is electrically connected to the power supply end 3.1 of the control valve unit 3 through the adapter conductive part 7. The pin 8 is plugged into the pin socket 6 to realize the electrical connection between the main conductive part 5 and the adapter conductive part 7.

[0035] After adopting the above structure, the improved vacuum generator of the utility model has the following advantages compared with the prior art: after the above improvement, when the control valve unit 3 is connected to the upper end of the confluence valve unit 1, the pin 8 on the control valve unit 3 can be plugged into the pin female socket 6 to realize the circuit conduction between the external power supply circuit, the main conductive part 5, the pin female socket 6, the pin 8, the transfer conductive part 7 and the power supply end 3.1 of the control valve, and no additional circuit is required to supply power or transmit signals to the control valve unit 3, and the structure is simple and compact;

[0036] Furthermore, the detachable connection structure between the pin 8 and the pin socket 6 has the characteristics of convenient disassembly and assembly and simple maintenance.

[0037] As an improvement of the utility model, a matching groove is provided in the middle of the confluence valve unit 1 for assembling the vacuum generating unit 2, and a fixing block 9 is provided on the right side of the confluence valve unit 1, and the fixing block 9 is detachably connected to the confluence valve unit 1. After the above improvement, the vacuum generating unit 2 is assembled in the matching groove on the confluence valve unit 1, and forms a three-layer stacked structure with the confluence valve unit 1 and the control valve unit 3, which is more compact in structure and conducive to miniaturization.

[0038] As an improvement of the utility model, a fixing block 9 is provided on the right side of the confluence valve unit 1, and the fixing block 9 is detachably connected to the confluence valve unit 1, and the upper end of the fixing block 9 and the upper end of the left side of the confluence valve unit 1 are both higher than the setting of the vacuum generating unit 2;

[0039] The upper end of the fixing block 9 is provided with a first accommodating space 9.1;

[0040] A second accommodating space is provided at the upper left end of the confluence valve unit 1;

[0041] There are two pin sockets 6, one of which is arranged in the first accommodation space 9.1, and the other is arranged in the second accommodation space. After the above improvement, the pin sockets 6 are arranged in the first accommodation space 9.1 at the upper end of the fixing block 9 and in the second accommodation space at the upper end of the confluence valve unit 1, and the position layout of the pin sockets 6 is reasonable to facilitate the accurate insertion of the pins 8 under the control valve unit 3.

[0042] Among them, the vacuum pressure sensor 4 and the main conductive member 5 are both detachably connected to the fixed block 9, the detection end of the vacuum pressure sensor 4 is inserted into the assembly port of the confluence valve unit 1, and the working port 1.1 is provided with a branch connected to the assembly port. The vacuum pressure sensor 4 obtains the vacuum pressure parameters of the working port 1.1 by monitoring the vacuum pressure parameters of the branch.

[0043] The main conductive component 5 and the transfer conductive component 7 can both be made of PCB boards.

[0044] The main conductive member 5 and the vacuum pressure sensor 4 may be electrically connected by a wire, or the vacuum pressure sensor 4 may be directly welded to the main conductive member 5 .

[0045] The main conductive member 5 is electrically connected to the two pin sockets 6 via wires.

[0046] The switching conductive member 7 is electrically connected to the power supply end 3 . 1 of the control valve unit 3 via a wire, or the power supply end 3 . 1 of the control valve unit 3 is directly welded to the switching conductive member 7 .

[0047] The main conductive member 5 is provided with a wiring terminal 5.1, which is detachably connected to an external power supply circuit to realize the electrical connection of the external power supply circuit to the main conductive member 5. Of course, after the above electrical connection is completed, the wiring terminal 5.1 can also be used to transmit the data signal fed back by the control valve unit 3 and the vacuum pressure sensor 4, and the data can be obtained by connecting the corresponding signal line to the wiring terminal 5.1.

[0048] As an improvement of the present invention, the first accommodating space 9.1 and the second accommodating space are both structures that semi-enclose the female pin socket 6, and the outer openings of the first accommodating space 9.1 and the second accommodating space are detachably connected with a cover plate 10.

[0049] The fixing block 9 and the upper end surface of the confluence valve unit 1 are respectively provided with a plug hole 11 for the plug pin 8 to pass through the plug hole 11 and plug into the plug pin female socket 6. After the above improvement, when the plug pin female socket 6 is in the first accommodating space 9.1 and the second accommodating space, the cover plate 10 can be installed, and the plug pin 8 can pass through the plug hole 11 and plug into the plug pin female socket 6. The connection part between the plug pin female socket 6 and the plug pin 8 is in a relatively closed space to prevent the entry of foreign debris, and the operation stability of the device is better.

[0050] As an improvement of the present invention, two pins 8 are respectively provided at two ends of the control valve unit 3, and the pins 8 extend downward from the main body of the control valve unit 3;

[0051] The lower parts of both ends of the control valve unit 3 are respectively provided with positioning blocks 12, and the upper end surfaces of the confluence valve unit 1 and the fixing block 9 are respectively provided with positioning grooves 13 for the positioning blocks 12 to fit in. After the above improvements, the position of the pin 8 has the characteristics of reasonable layout; after the positioning block 12 fits in with the positioning groove 13, the control valve unit 3 and the confluence valve unit 1 can be positioned to the preset connection position, thereby facilitating the subsequent fixing of the control valve unit 3 and the confluence valve unit 1 by screws, which has the characteristics of improving the stability of the connection and facilitating disassembly and assembly.

[0052] As an improvement of the present invention, the first accommodation space 9.1 and the second accommodation space are respectively provided with a transverse card slot 14, and the female pin socket 6 is provided with a fitting block 16 that can be transversely inserted into the card slot 14. The fitting block 16 is located at both ends of the female pin socket 6, and the first accommodation space 9.1 and the second accommodation space have two card slots 14, respectively, and are arranged opposite to each other;

[0053] When assembling the female socket, first place the female pin socket 6 in the first accommodation space 9.1 and the opening of the second accommodation space, then install the fitting block 16 into the corresponding slot 14 and push the female pin socket 6 to the preset assembly position (the access port of the female pin socket 6 is opposite to the jack 11), and finally, thread the cover plate 10 with the confluence valve unit 1 and the fixing block 9 by screws, and the inner side of the cover plate 10 is provided with a bayonet to clamp the female pin socket 6, so as to stabilize the position of the female pin socket 6. After the above improvements, the female pin socket 6 has the characteristics of simple disassembly and assembly, and stable and reliable connection.

[0054] As an improvement of the present utility model, transparent covers 17 are respectively provided at both ends of the control valve unit 3, and an assembly space is formed between the transparent cover 17 and the end of the control valve unit 3, and the assembly space is used to shield the transfer conductive member 7 and the power supply end 3.1 of the control valve unit 3. The positioning block 12 is provided at the lower end of the transparent cover 17, and the transparent cover 17 is detachably connected to the control valve unit 3. After the connection, an assembly space is formed to accommodate the transfer conductive member 7 and the power supply end 3.1 of the control valve unit 3. The transfer conductive member 7 and the power supply end 3.1 of the control valve unit 3 are in a relatively closed space, which effectively prevents the entry of foreign debris, improves the reliability of operation, and prolongs the service life.

[0055] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An improved vacuum generator, characterized in that: include: A confluence valve unit (1), a vacuum generating unit (2) connected to the confluence valve unit (1), and a control valve unit (3); The control valve unit (3) is energized to control the opening or closing of the vacuum generation flow channel of the vacuum generation unit (2), or to control the opening or closing of the vacuum destruction flow channel on the confluence valve unit (1), wherein the confluence valve unit (1) is provided with a working port (1.1) in communication with the vacuum generation flow channel and in communication with the vacuum destruction flow channel; The confluence valve unit (1) is provided with a vacuum pressure sensor (4) and a main conductive member (5), and the main conductive member (5) is electrically connected to an external power supply circuit and the vacuum pressure sensor (4); The upper end of the confluence valve unit (1) is also provided with a female pin socket (6) electrically connected to the main conductive part (5); the control valve unit (3) is provided with a switching conductive part (7) and a pin (8); the pin (8) is electrically connected to the power supply end (3.1) of the control valve unit (3) through the switching conductive part (7); the pin (8) leaks out from the lower end of the control valve unit (3) and is plugged into the female pin socket (6) to realize the electrical connection between the main conductive part (5) and the switching conductive part (7).

2. An improved vacuum generator according to claim 1, characterized in that: A matching groove is provided in the middle of the confluence valve unit (1) for assembling the vacuum generating unit (2).

3. An improved vacuum generator according to claim 2, characterized in that: A fixing block (9) is arranged on the right side of the confluence valve unit (1), the fixing block (9) being detachably connected to the confluence valve unit (1), the upper end of the fixing block (9) and the upper end of the left side of the confluence valve unit (1) both being higher than the vacuum generating unit (2); A first accommodating space (9.1) is provided at the upper end of the fixing block (9); A second accommodating space is provided at the upper left end of the confluence valve unit (1); There are two female pin sockets (6), one of which is arranged in the first accommodating space (9.1) and the other is arranged in the second accommodating space.

4. An improved vacuum generator according to claim 3, characterized in that: The first accommodating space (9.1) and the second accommodating space are both structures that semi-enclose the female pin socket (6), and the outer openings of the first accommodating space (9.1) and the second accommodating space are detachably connected to cover plates (10). The upper end surfaces of the fixing block (9) and the confluence valve unit (1) are respectively provided with insertion holes (11) for the insertion pins (8) to pass through the insertion holes (11) and be plugged into the insertion pin socket (6).

5. An improved vacuum generator according to claim 3, characterized in that: Two plug pins (8) are respectively arranged at two ends of the control valve unit (3), and the plug pins (8) extend downward from the main body of the control valve unit (3); Positioning blocks (12) are respectively provided at the lower parts of both ends of the control valve unit (3), and positioning grooves (13) for the positioning blocks (12) to fit into are respectively provided at the upper ends of the confluence valve unit (1) and the fixing block (9).

6. An improved vacuum generator according to claim 3, characterized in that: The first accommodating space (9.1) and the second accommodating space are respectively provided with a transverse slot (14), and the female pin socket (6) is provided with a fitting block (16) which can be transversely inserted into the slot (14).

7. An improved vacuum generator according to claim 1, characterized in that: Transparent covers (17) are respectively provided at both ends of the control valve unit (3), and an assembly space is formed between the transparent cover (17) and the end of the control valve unit (3), wherein the assembly space is used to shield the switching conductive member (7) and the power supply end (3.1) of the control valve unit (3).

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