CN214146693U - Pneumatic control reversing valve with pressure regulating valve - Google Patents
Pneumatic control reversing valve with pressure regulating valve Download PDFInfo
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- CN214146693U CN214146693U CN202120054299.4U CN202120054299U CN214146693U CN 214146693 U CN214146693 U CN 214146693U CN 202120054299 U CN202120054299 U CN 202120054299U CN 214146693 U CN214146693 U CN 214146693U
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Abstract
The utility model relates to a pneumatic control reversing valve with a pressure regulating valve, wherein the pressure regulating valve is arranged on the pneumatic control reversing valve and comprises a pressure regulating shell, an air passage, an adjusting part, a valve core seat sealing body, a valve base and a reset spring, and an air inlet and an air outlet of the air passage are connected with a valve rod and a working port of the pneumatic control reversing valve; the pressure regulating shell comprises a valve bottom groove, the valve core seat sealing body, the reset spring and the valve base are sequentially connected and arranged in the valve bottom groove, the adjusting portion is in contact connection with the valve core seat sealing body, and gas passes through the adjusting portion, the valve bottom groove and the gas outlet from the gas inlet and is connected with a working port of the pneumatic control reversing valve. The utility model discloses increased the function to one of them work mouth decompression on the basis of original gas accuse switching-over effect, different atmospheric pressure's demand when making the product can satisfy different operating modes can reduce the consume of gas and to the load of execute component simultaneously.
Description
Technical Field
The utility model relates to a pneumatic control field especially relates to a gas accuse switching-over valve with pressure regulating valve area decompression function.
Background
With the introduction of modern mechanized production, a pneumatic device is an electromechanical integrated product widely used in the control field, and has the function of transmitting motion and power by using compressed air as a working medium. The pneumatic control reversing valve structure mainly comprises a valve body, a valve seat, a valve rod, a rear cover and a spring, wherein an air inlet, two working ports, a control port and two exhaust ports are designed on the pneumatic control reversing valve. The on-off air of the control port is used for switching the ventilation of the two working ports of the valve. Only the gas flow direction can be controlled, and the flow rate and the gas pressure of the gas cannot be controlled.
Thus, prior art pneumatic operated directional valves have a place to lift.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas accuse switching-over valve with pressure regulating valve area decompression function to solve prior art's technical problem.
In order to achieve the above object, the present invention provides a pneumatic control reversing valve with a pressure regulating valve, wherein the pressure regulating valve is arranged on the pneumatic control reversing valve, the pressure regulating valve comprises a pressure regulating shell, an air passage, an adjusting part, a valve core seat sealing body, a valve base and a reset spring, the air passage, the adjusting part, the valve core seat sealing body, the valve base and the reset spring are arranged on the pressure regulating shell, and an air inlet and an air outlet of the air passage are connected with a valve rod and a working port of the pneumatic control reversing valve; the pressure regulating shell comprises a valve bottom groove, the valve core seat sealing body, the reset spring and the valve base are sequentially connected and arranged in the valve bottom groove, the adjusting portion is in contact connection with the valve core seat sealing body, and gas passes through the adjusting portion, the valve bottom groove and the gas outlet from the gas inlet and is connected with a working port of the pneumatic control reversing valve.
According to the pneumatic reversing valve with the pressure regulating valve, the pressure regulating shell comprises a pressure regulating groove, the pressure regulating groove is provided with a pressure regulating channel connected with the valve bottom groove, the adjusting part is arranged in the pressure regulating groove, the adjusting part comprises a pressure regulating screw rod, a pressure regulating cap, a pressure regulating spring, a diaphragm spring seat, a diaphragm and a valve core, the pressure regulating screw rod, the pressure regulating cap, the pressure regulating spring, the diaphragm spring seat and the diaphragm are sequentially connected, one end of the valve core is connected with a central through hole of the diaphragm spring seat and the diaphragm in a penetrating way, the other end of the valve core is inserted and connected with the pressure regulating channel, and the end surface of the other end of the valve core is in contact connection with the valve core seat sealing body; the outer edge of the valve core and the inner edge of the pressure regulating channel form a pressure regulating air path.
According to the utility model discloses preferred embodiment the gas accuse switching-over valve of area pressure regulating valve, the air-vent valve still includes a check valve, the pressure regulating casing includes a check groove, the check valve sets up in the check groove, the check valve includes check valve sprue, check valve reset spring, pressure piece ring sum circlip, check valve sprue, check valve reset spring, pressure piece ring sum circlip connect gradually, the air flue of check groove all the way connect the air inlet with air flue between the adjustment portion, the air flue of check groove connects all the way in addition air flue between valve kerve and the gas outlet.
The design principle of this application is: the product is composed of two parts, one part is a pressure regulating valve with a one-way pressure reducing function, the other part is a valve with a pneumatic control reversing function, and the two parts are combined and fixed through screws, so that the functions of pressure reduction and reversing are simultaneously met. Other functions are completely consistent with the functions of the pneumatic control reversing valve, the pressure regulating function is added on the basis of the function, the gas enters the pneumatic control reversing valve from the gas inlet of the valve before reversing, enters the pressure regulating valve through the first gas passage intersection to be reduced in pressure, and flows out of the gas outlet to the working port B, so that the pressure reducing function is realized. This application working hole A realizes the switching-over function for normal inlet pressure, and working hole B can realize the decompression function when realizing the switching-over function, has namely increased the pressure regulating function on the basis of former gas accuse switching-over valve, and under some special operating modes, some gearboxes need two working hole pressures of gas accuse switching-over valve different, and the gas accuse switching-over valve of this structure just satisfies this demand.
Compared with the prior art, the utility model has the advantages of it is following:
1. the pneumatic control reversing mechanism has the advantages that the function of reducing the pressure of one working opening is added on the basis of the original pneumatic control reversing function, so that products can meet the requirements of different air pressures under different working conditions, and meanwhile, the air consumption and the load on an execution element can be reduced.
Of course, implementing any particular embodiment of the present disclosure does not necessarily have all of the above technical advantages at the same time.
Drawings
FIG. 1 is a schematic view of a working port A of a pneumatic operated directional valve in the prior art;
FIG. 2 is a schematic view of a working port B of a pneumatic operated directional valve in the prior art;
FIG. 3 is a schematic cross-sectional view of a pressure regulating valve according to the present application;
FIG. 4 is a cut-away schematic view of the check valve of the present application;
FIG. 5 is a schematic view of a working gas circuit according to the present application;
FIG. 6 is a schematic view of a working gas circuit II according to the present application;
FIG. 7 is a schematic view of a working gas circuit of the present application;
FIG. 8 is a schematic view of an air return circuit according to the present application;
FIG. 9 is a schematic view of a second return air path of the present application;
fig. 10 is a schematic view of an air return path according to the present application.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Please refer to fig. 1 and 2, a pneumatic control directional valve in the prior art has the following specific working principle: before the direction is changed, due to the action of the spring, the pneumatic control reversing valve is in an initial state that the air inlet is communicated with the working port A, when air enters the air inlet, the air flows out of the working port A, and a load connected with the working port A is started; after the air is changed, the control port is ventilated, and due to the action of the air pressure, the air pressure overcomes the spring force when reaching a certain value, the valve rod is pushed to move, so that the state of the pneumatic control reversing valve is changed, the air inlet is communicated with the working port B, and when the air inlet is ventilated, the air flows out of the working port B, so that a load connected with the working port B is started; when the air in the control port is exhausted, the valve rod returns to the initial state under the action of the spring and is continuously communicated with the working port A. Therefore, the on-off of the control port can control which working port is ventilated, and the purpose of air path reversing is achieved. As shown in the figure, the pneumatic control reversing valve mainly comprises a valve body, a valve seat, a valve rod, a rear cover and a spring, and is provided with an air inlet, two working ports, a control port and two exhaust ports.
The utility model provides a take gas accuse switching-over valve of air-vent valve, in figure 5 air-vent valve 1 sets up on the gas accuse switching-over valve 2, both combinations pass through the combination of screw fixation, reach and satisfy the function of decompression and switching-over simultaneously, and other functions are identical with gas accuse switching-over valve 2 functions completely, and this application embodiment has increased the pressure regulating function in workport B department on this basis. Referring to fig. 3 and 5, the pressure regulating valve 1 includes a pressure regulating housing 10, an air passage 20, an adjusting portion 30, a valve core seat sealing body 41, a valve base 42 and a return spring 43, the air passage 20, the adjusting portion 30, the valve core seat sealing body 41, the valve base 42 and the return spring 43 are disposed in the pressure regulating housing 10, and an air inlet 21 and an air outlet 22 of the air passage are connected to a valve rod and a working port of the pneumatic-control directional valve 2, which is a working port B in the embodiment of the present application; the pressure regulating shell 10 comprises a valve bottom groove 11, a valve core seat sealing body 41, a return spring 43 and a valve base 42 are sequentially connected and arranged in the valve bottom groove 11, an adjusting part 30 is in contact connection with the valve core seat sealing body 41, gas passes through the valve bottom groove 11 and a gas outlet 22 from a gas inlet 21 and is connected with a working port of the pneumatic control reversing valve 2, namely a working port B in the embodiment of the application.
In fig. 5, after entering from the air inlet 21, the gas firstly enters the first gas passage intersection 23 through the gas passage, a gas passage in the first gas passage intersection 23 leads to the valve core seat sealing body 41, as shown in fig. 6, when the gas pressure of the gas coming to the valve core seat sealing body 41 is greater than the expansion force of the return spring 43, the return spring 43 compresses the gas to flow into the valve bottom groove 11, as shown in fig. 7, and then flows along the gas passage to the air outlet 22 to connect with the working port B.
As shown in fig. 3, the pressure regulating housing 10 includes a pressure regulating groove 12, the pressure regulating groove 12 is provided with a pressure regulating channel 121 connected to the valve bottom groove 11, the adjusting portion 30 is disposed in the pressure regulating groove 12, the adjusting portion 30 includes a pressure regulating screw 31, a pressure regulating cap 32, a pressure regulating spring 33, a diaphragm spring seat 34, a diaphragm 35 and a valve core 36, the pressure regulating screw 31, the pressure regulating cap 32, the pressure regulating spring 33, the diaphragm spring seat 34 and the diaphragm 35 are sequentially connected, one end of the valve core 36 penetrates through central through holes of the diaphragm spring seat 34 and the diaphragm 35, the other end of the valve core 36 is inserted into the pressure regulating channel 121, and the end surface of the other end of the valve core 36 is in contact with the valve core seat sealing body 41; the outer edge of the valve core 36 and the inner edge of the pressure regulating channel 121 form a pressure regulating air path, and the diameter of the valve core 36 on one side of the valve core seat sealing body 41 is smaller than that on the other side in fig. 3, so that the pressure regulating air path is more definite, and the pressure value is more easily designed so as to adjust the proper pressure.
Referring to fig. 4, the pressure regulating valve 1 further includes a check valve, the pressure regulating housing 10 includes a check groove 13, the check valve is disposed in the check groove 13, the check valve includes a check valve block 51, a check valve return spring 52, a pressure plate ring 53 and an elastic collar 54, the check valve block 51, the check valve return spring 52, the pressure plate ring 53 and the elastic collar 54 are sequentially connected, one path of the air passage of the check groove 13 is connected to the air passage between the air inlet 21 and the adjusting portion 30, that is, connected to the first air passage intersection 23 as shown in fig. 8, and the other path of the air passage of the check groove 13 is connected to the air passage between the valve bottom groove 11 and the air outlet 22, that is, connected to the second air passage intersection 24 as shown in fig. 8.
Referring to fig. 8, 9 and 10, when the gas at the control port of the pneumatic-control directional valve 2 is exhausted, the valve rod returns to the initial state under the action of the spring and continues to communicate with the working port a, at this time, the gas in the working port B flows back, the gas shown by the black line in fig. 8 flows from the working port B to the second gas passage intersection 24, as shown in fig. 9, when the pressure of the gas is greater than the expansion force of the gas from the check valve return spring 52, the check valve return spring 52 compresses the gas to flow into the check groove 13 and then flows to the first gas passage intersection 23 along the gas passage, as shown in fig. 10, and then flows to the gas inlet 21 along the gas passage to connect with the valve rod.
Compared with the prior art, the utility model has the advantages of it is following:
1. the pneumatic control reversing mechanism has the advantages that the function of reducing the pressure of one working opening is added on the basis of the original pneumatic control reversing function, so that products can meet the requirements of different air pressures under different working conditions, and meanwhile, the air consumption and the load on an execution element can be reduced.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (3)
1. The pneumatic reversing valve with the pressure regulating valve is characterized in that the pressure regulating valve is arranged on the pneumatic reversing valve and comprises a pressure regulating shell, an air passage, an adjusting part, a valve core seat sealing body, a valve base and a reset spring, wherein the air passage, the adjusting part, the valve core seat sealing body, the valve base and the reset spring are arranged in the pressure regulating shell, and an air inlet and an air outlet of the air passage are connected with a valve rod and a working port of the pneumatic reversing valve; the pressure regulating shell comprises a valve bottom groove, the valve core seat sealing body, the reset spring and the valve base are sequentially connected and arranged in the valve bottom groove, the adjusting portion is in contact connection with the valve core seat sealing body, and gas passes through the adjusting portion, the valve bottom groove and the gas outlet from the gas inlet and is connected with a working port of the pneumatic control reversing valve.
2. The pneumatic reversing valve with the pressure regulating valve according to claim l, wherein the pressure regulating housing comprises a pressure regulating groove, the pressure regulating groove is provided with a pressure regulating channel connected with the valve bottom groove, the adjusting part is arranged in the pressure regulating groove and comprises a pressure regulating screw rod, a pressure regulating cap, a pressure regulating spring, a diaphragm spring seat, a diaphragm and a valve core, the pressure regulating screw rod, the pressure regulating cap, the pressure regulating spring, the diaphragm spring seat and the diaphragm are sequentially connected, one end of the valve core is connected with a central through hole of the diaphragm spring seat and the diaphragm in a penetrating manner, the other end of the valve core is inserted and connected with the pressure regulating channel, and the end face of the other end of the valve core is in contact connection with the valve core seat sealing body; the outer edge of the valve core and the inner edge of the pressure regulating channel form a pressure regulating air path.
3. The pneumatic control directional valve with the pressure regulating valve according to claim 2, wherein the pressure regulating valve further comprises a check valve, the pressure regulating housing comprises a check groove, the check valve is arranged in the check groove, the check valve comprises a check valve block, a check valve reset spring, a pressure plate ring and an elastic retainer ring, the check valve block, the check valve reset spring, the pressure plate ring and the elastic retainer ring are sequentially connected, the air passage of the check groove is connected with the air passage between the air inlet and the regulating part, and the air passage of the check groove is connected with the air passage between the valve bottom groove and the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120054299.4U CN214146693U (en) | 2021-01-11 | 2021-01-11 | Pneumatic control reversing valve with pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120054299.4U CN214146693U (en) | 2021-01-11 | 2021-01-11 | Pneumatic control reversing valve with pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214146693U true CN214146693U (en) | 2021-09-07 |
Family
ID=77547544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120054299.4U Active CN214146693U (en) | 2021-01-11 | 2021-01-11 | Pneumatic control reversing valve with pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214146693U (en) |
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2021
- 2021-01-11 CN CN202120054299.4U patent/CN214146693U/en active Active
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