CN213474706U - Positive and negative pressure switching device - Google Patents
Positive and negative pressure switching device Download PDFInfo
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- CN213474706U CN213474706U CN202022362706.6U CN202022362706U CN213474706U CN 213474706 U CN213474706 U CN 213474706U CN 202022362706 U CN202022362706 U CN 202022362706U CN 213474706 U CN213474706 U CN 213474706U
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Abstract
The utility model discloses a positive and negative pressure switching device, which comprises a gas valve island, a vacuum driving valve, a vacuum generator, a positive and negative pressure switching valve and a precision adjusting component; the precision adjusting part is connected with the gas valve island in a sealing way; the vacuum driving valve, the vacuum generator and the positive and negative pressure switching valve are all inserted into the inner side of the gas valve island; the vacuum driving valve, the vacuum generator, the positive and negative pressure switching valve and the precision adjusting part are all integrally arranged on the gas valve island, and the interior of the gas valve island is not connected with a gas pipe; when the valve is used, the inlet of the gas valve island is connected with a positive pressure gas source, the outlet of the gas valve island is connected to actuating equipment, and the switching control output of positive and negative pressure can be realized by switching control of the vacuum driving valve and the positive and negative pressure switching valve; the integral structure is simplified, the air pipe connection is not needed, the installation operation is simplified, the size is small, and the popularization and the use are facilitated.
Description
Technical Field
The utility model relates to a vacuum control technical field, in particular to positive negative pressure auto-change over device for controlling flexible clamping jaw.
Background
The flexible paw is controlled by air pressure. The hand claw opens when inputing the negative pressure, and the hand claw is closed tight tightly when inputing the malleation, can control the tight dynamics of hand claw clamp through adjusting malleation size.
The existing control device is connected with each component through a gas pipe joint, and has a complex structure and a large volume. The installation involves the installation of a plurality of parts and the connection of a plurality of air pipes and joints, is relatively complicated and laborious, and easily generates leakage at the joints and the air pipe joints.
Disclosure of Invention
The utility model provides a small in size, convenient operation and the superior positive negative pressure auto-change over device of comprehensive properties to solve current bulky, the installation trouble and often take place technical problem such as leakage.
In order to solve the technical problem, the utility model provides a following technical scheme: a positive and negative pressure switching device comprises a gas valve island, a vacuum driving valve, a vacuum generator, a positive and negative pressure switching valve and a precision adjusting component; the precision adjusting part is connected with the gas valve island in a sealing way; the vacuum driving valve, the vacuum generator and the positive and negative pressure switching valve are all inserted into the inner side of the gas valve island.
Further, a vacuum driving valve mounting hole, a vacuum generator mounting hole and a positive and negative pressure switching valve mounting hole are formed in one side array of the gas valve island; the vacuum generator mounting hole is communicated with the positive and negative pressure switching valve mounting hole; the vacuum driving valve mounting hole is communicated with the bottom of the vacuum generator mounting hole; the vacuum driving valve mounting hole is provided with a compressed air inlet; the left side of the gas valve island is provided with a positive and negative pressure output port which is communicated with the positive and negative pressure switching valve mounting hole; the top of the gas valve island is provided with a first gas inlet communicated with a compressed air inlet, and the top of the gas valve island is provided with a second gas inlet communicated with the positive and negative pressure switching valve mounting hole.
Furthermore, quick connectors are screwed on the compressed air inlet and the positive and negative pressure output ports.
Furthermore, the precision adjusting component comprises a precision pressure adjusting valve, a pressure adjusting fixed support and a pressure gauge; the precise pressure regulating valve is connected with the pressure regulating fixed support in a sealing way; the pressure gauge is screwed on the precise pressure regulating valve.
Further, the pressure regulating fixed bolster includes: left mount, right mount and connecting plate, left mount setting are in the top left side of gas valve island, and right mount setting is on the top right side of gas valve island, and connecting plate one end is connected with left mount, and the other end is connected with right mount.
Furthermore, the left fixing frame is provided with a first flow guide channel, and the right fixing frame is provided with a second flow guide channel.
Further, the vacuum-actuated valve is a two-way bullet solenoid valve.
Furthermore, the positive and negative pressure switching valve adopts a three-way bullet type electromagnetic valve.
Compared with the prior art, the utility model has the advantages of it is following: the vacuum driving valve, the vacuum generator, the positive and negative pressure switching valve and the precision adjusting part are all integrally arranged on the gas valve island, and the interior of the gas valve island is not connected with a gas pipe; when the valve is used, the inlet of the gas valve island is connected with a positive pressure gas source, the outlet of the gas valve island is connected to actuating equipment, and the switching control output of positive and negative pressure can be realized by switching control of the vacuum driving valve and the positive and negative pressure switching valve; the integral structure is simplified, the air pipe connection is not needed, the installation operation is simplified, the size is small, and the popularization and the use are facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the gas valve terminal of the present invention;
fig. 3 is a schematic view of the left side structure of the gas valve terminal of the present invention;
fig. 4 is the structure schematic diagram of the pressure regulating fixing bracket of the utility model.
Description of the labeling: a gas valve island 1; the valve 2 is driven by vacuum; a vacuum generator 3; a positive/negative pressure switching valve 4; a precision adjusting part 5; a vacuum actuated valve mounting hole 11; a vacuum generator mounting hole 12; a positive-negative pressure switching valve mounting hole 13; a compressed air inlet 14; a positive and negative pressure output port 15; a first intake hole 16; the second intake holes 17; a quick coupling 18; a precision pressure regulating valve 51; a pressure-regulating fixing bracket 52; a pressure gauge 53; a left mount 521; a right mount 522; a connecting plate 523; a first flow guide passage 5211; and a second flow guide passage 5221.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4: a positive and negative pressure switching device comprises a gas valve island 1, a vacuum driving valve 2, a vacuum generator 3, a positive and negative pressure switching valve 4 and a precision adjusting part 5; the precision adjusting component 5 is hermetically connected with the gas valve island 1; the vacuum driving valve 2, the vacuum generator 3 and the positive and negative pressure switching valve 4 are all inserted into the inner side of the gas valve island 1.
A vacuum driving valve mounting hole 11, a vacuum generator mounting hole 12 and a positive and negative pressure switching valve mounting hole 13 are arranged on one side of the gas valve island 1 in an array manner; the vacuum driving valve 2 is screwed in the vacuum driving valve mounting hole 11, the vacuum generator 3 is screwed in the vacuum generator mounting hole 12, and the positive and negative pressure switching valve 4 is screwed in the positive and negative pressure switching valve mounting hole 13; the vacuum generator mounting hole 12 is communicated with the positive and negative pressure switching valve mounting hole 13; the vacuum driving valve mounting hole 11 is communicated with the bottom of the vacuum generator mounting hole 12; the compressed air entering the compressed air inlet 14 is connected to the inlet of the vacuum-actuated valve 2, and the outlet of the vacuum-actuated valve 2 is connected to the compressed air inlet of the vacuum generator 3; the vacuum port of the vacuum generator 3 is connected to the normally open input port of the positive and negative pressure switching valve 4; the vacuum driving valve mounting hole 11 is provided with a compressed air inlet 14; the compressed air inlet 14 is communicated with the second flow guide channel 5221, the compressed air inlet 14 is communicated with the vacuum driving valve mounting hole 11, the input end of the precision pressure regulating valve 51 is communicated with the compressed air inlet 14, and the output end of the precision pressure regulating valve 51 is communicated with the normally closed input port of the positive and negative pressure switching valve 4; a positive and negative pressure output port 15 is arranged on the left side of the gas valve island 1, and the positive and negative pressure output port 15 is communicated with the positive and negative pressure switching valve mounting hole 13; the top of the gas valve island 1 is provided with a first gas inlet hole 16 communicated with a compressed air inlet, and the top of the gas valve island 1 is provided with a second gas inlet hole 17 communicated with the positive and negative pressure switching valve mounting hole 13 to form corresponding gas circuit connection; the compressed air inlet 14 and the positive and negative pressure output port 15 are both screwed with quick connectors 18; when the vacuum valve works, at most one valve is electrified for the vacuum driving valve 2 and the positive and negative pressure switching valve 4 in the same time; when the vacuum driving valve 2 is electrified, compressed air at an outlet of the vacuum driving valve enters an inlet of the vacuum generator 3, the vacuum generator 3 generates vacuum, and the vacuum flows to the positive and negative pressure output port 15 through a normally open input port of the positive and negative pressure switching valve 4; when the positive and negative pressure switching valve 4 is electrified, the normally open input port is closed, the normally closed input port is opened, and the compressed air output by the precision pressure regulating valve 51 flows to the positive and negative pressure output port 15 through the normally closed input port of the positive and negative pressure switching valve 4; when neither the vacuum drive valve 2 nor the positive/negative pressure switching valve 4 is energized, no positive/negative pressure is output. The vacuum driving valve 2, the vacuum generator 3, the positive and negative pressure switching valve 4 and the precision adjusting part 5 are all integrally installed on the gas valve island 1, and the inside does not need to be connected with a gas pipe. When the valve is used, the inlet of the gas valve island 1 is connected with a positive pressure gas source, the outlet is connected to action equipment, and the switching control output of positive and negative pressure can be realized by switching control of the vacuum driving valve 2 and the positive and negative pressure switching valve 4; the integral structure is simplified, the air pipe connection is not needed, the installation operation is simplified, the size is small, and the popularization and the use are facilitated.
The precision adjusting part 5 comprises a precision pressure adjusting valve 51, a pressure adjusting fixed bracket 52 and a pressure gauge 53; the precise pressure regulating valve 51 is connected with the pressure regulating fixing bracket 52 in a sealing way; the pressure gauge 53 is screwed on the precision pressure regulating valve 51; the pressure regulating fixing bracket 52 includes: the gas valve island 1 comprises a left fixing frame 521, a right fixing frame 522 and a connecting plate 523, wherein the left fixing frame 521 is arranged on the left side above the gas valve island 1, the right fixing frame 522 is arranged on the right side above the gas valve island 1, one end of the connecting plate 523 is connected with the left fixing frame 521, and the other end of the connecting plate 523 is connected with the right fixing frame 522; the left fixing frame 521 is provided with a first flow guide channel 5211, and the right fixing frame 522 is provided with a second flow guide channel 5221; the pressure gauge 53 is arranged above the connecting plate 523 and is screwed with the precision pressure regulating valve 51, the precision pressure regulating valve 51 is embedded between the left fixing frame 521 and the right fixing frame 522, the input end of the precision pressure regulating valve 51 is communicated with the second flow guide channel 5221, the second flow guide channel 5221 is communicated with the first air inlet 16, the output end of the precision pressure regulating valve 51 is communicated with the first flow guide channel 5211, and the first flow guide channel 5211 is communicated with the second air inlet 17; thereby leading the input end of the precision pressure regulating valve 51 to be communicated with the compressed air inlet 14, and the output end of the precision pressure regulating valve 51 to be communicated with the normally closed input port of the positive and negative pressure switching valve 4; structurally, an air flow channel is arranged to replace the connection of an air pipe and a joint, the operation is convenient, and the problem of air leakage is avoided.
The vacuum actuated valve 2 is a two-way bullet solenoid valve.
The positive and negative pressure switching valve 4 adopts a three-way bullet type electromagnetic valve.
The utility model discloses an application principle: a compressed air inlet 14 of the gas valve island 1 is connected with compressed air, an outlet is connected to action equipment, and switching control output of positive and negative pressure can be realized by switching control of the vacuum driving valve 2 and the positive and negative pressure switching valve 4; when the vacuum driving valve 2 is electrified, compressed air at the outlet end of the vacuum driving valve 2 enters an inlet of the vacuum generator 3, the vacuum generator 3 generates vacuum, and the vacuum flows to the positive and negative pressure output port 15 through a normally open input port of the positive and negative pressure switching valve 4; when the positive and negative pressure switching valve 4 is electrified, the normally open input port is closed, the normally closed input port is opened, and the compressed air at the output end of the precision pressure regulating valve 51 flows to the positive and negative pressure output port 15 through the normally closed input port of the positive and negative pressure switching valve 4; when neither the vacuum drive valve 2 nor the positive/negative pressure switching valve 4 is energized, no positive/negative pressure is output.
It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, it should be understood by those skilled in the art that after reading the present specification, the technical personnel can still modify or equivalently replace the specific embodiments of the present invention, but these modifications or changes do not depart from the scope of the claims of the present application.
Claims (8)
1. A positive and negative pressure switching device is characterized by comprising a gas valve island (1), a vacuum driving valve (2), a vacuum generator (3), a positive and negative pressure switching valve (4) and a precision adjusting component (5); the precision adjusting component (5) is connected with the gas valve island (1) in a sealing way; the vacuum driving valve (2), the vacuum generator (3) and the positive and negative pressure switching valve (4) are inserted into the inner side of the gas valve island (1).
2. The positive-negative pressure switching device according to claim 1, wherein the gas valve island (1) is provided with vacuum-driven valve mounting holes (11), vacuum generator mounting holes (12) and positive-negative pressure switching valve mounting holes (13) in an array on one side; the vacuum generator mounting hole (12) is communicated with the positive and negative pressure switching valve mounting hole (13); the vacuum driving valve mounting hole (11) is communicated with the bottom of the vacuum generator mounting hole (12); the vacuum driving valve mounting hole (11) is provided with a compressed air inlet (14); a positive and negative pressure output port (15) is formed in the left side of the gas valve island (1), and the positive and negative pressure output port (15) is communicated with the positive and negative pressure switching valve mounting hole (13); the top of the gas valve island (1) is provided with a first gas inlet hole (16) communicated with a compressed air inlet, and the top of the gas valve island (1) is provided with a second gas inlet hole (17) communicated with the positive and negative pressure switching valve mounting hole (13).
3. The positive-negative pressure switching device according to claim 2, wherein the compressed air inlet (14) and the positive-negative pressure outlet (15) are both screwed with quick connectors (18).
4. The positive-negative pressure switching device according to claim 1, wherein the precision adjusting part (5) comprises a precision pressure adjusting valve (51), a pressure adjusting fixing bracket (52) and a pressure gauge (53); the precise pressure regulating valve (51) is connected with the pressure regulating fixing bracket (52) in a sealing way; the pressure gauge (53) is screwed on the precise pressure regulating valve (51).
5. The positive-negative pressure switching device according to claim 4, wherein the pressure regulating fixing bracket (52) comprises: the gas valve island fixing device comprises a left fixing frame (521), a right fixing frame (522) and a connecting plate (523), wherein the left fixing frame (521) is arranged on the left side above the gas valve island (1), the right fixing frame (522) is arranged on the right side above the gas valve island (1), one end of the connecting plate (523) is connected with the left fixing frame (521), and the other end of the connecting plate is connected with the right fixing frame (522).
6. The positive-negative pressure switching device according to claim 5, wherein the left fixing frame (521) is provided with a first guide passage (5211), and the right fixing frame (522) is provided with a second guide passage (5221).
7. The positive-negative pressure switching device according to claim 1, wherein the vacuum-actuated valve (2) is a two-way bullet solenoid valve.
8. The positive-negative pressure switching device according to claim 1, wherein the positive-negative pressure switching valve (4) is a three-way bullet solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022362706.6U CN213474706U (en) | 2020-10-22 | 2020-10-22 | Positive and negative pressure switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022362706.6U CN213474706U (en) | 2020-10-22 | 2020-10-22 | Positive and negative pressure switching device |
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| Publication Number | Publication Date |
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| CN213474706U true CN213474706U (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022362706.6U Active CN213474706U (en) | 2020-10-22 | 2020-10-22 | Positive and negative pressure switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI825939B (en) * | 2021-09-16 | 2023-12-11 | 日商Ｓｍｃ股份有限公司 | Positive/negative pressure switch circuit |
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- 2020-10-22 CN CN202022362706.6U patent/CN213474706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI825939B (en) * | 2021-09-16 | 2023-12-11 | 日商Ｓｍｃ股份有限公司 | Positive/negative pressure switch circuit |
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