CN214248456U - Pressure relief device with trigger mechanism - Google Patents
Pressure relief device with trigger mechanism Download PDFInfo
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- CN214248456U CN214248456U CN202022910893.7U CN202022910893U CN214248456U CN 214248456 U CN214248456 U CN 214248456U CN 202022910893 U CN202022910893 U CN 202022910893U CN 214248456 U CN214248456 U CN 214248456U
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- pressure relief
- relief device
- trigger
- shell
- hand wheel
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Abstract
The utility model belongs to the technical field of pilot ground training, a take trigger mechanism unload depressor is related to. The utility model discloses a take trigger mechanism's release ware includes release ware main part (1), trigger switch (2), hand wheel (3), trigger screw (5). The utility model provides a same kind equipment adopt the unsatisfactory problem of pure mechanical release ware release effect, can realize catching the release signal by the computer, realize mechanical, the dual release of electricity, synthesize the release respond well, have great using value.
Description
Technical Field
The utility model belongs to the technical field of pneumatics, a take trigger mechanism unload depressor is related to.
Background
At present, domestic similar equipment adopts pure mechanical pressure relief devices to relieve pressure, when an operator presses a hand wheel to relieve pressure, a controller still supplies air to the pressure relief devices through an electric proportional valve, so that pressure relief electric signals need to be additionally sent to the controller manually to control the electric proportional valve to stop supplying air, the pressure relief process is troublesome to operate, and the pressure relief effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the pressure relief device with the trigger mechanism can realize mechanical and electrical dual pressure relief by capturing pressure relief signals by a computer.
The technical scheme of the utility model is that: providing a pressure relief device with a trigger mechanism, wherein the pressure relief device comprises a pressure relief device 1, a trigger switch 2, a hand wheel 3, a trigger screw 5, a controller 20 and an electric proportional valve 21;
the trigger switch 2 is fixedly connected with the shell of the pressure relief device 1; the trigger screw 5 is arranged on the hand wheel 3; the hand wheel 3 is connected with a pressure relief device connecting rod 10 of the pressure relief device 1;
the trigger switch 2 is in signal connection with the controller 20; the controller 20 is electrically connected with the electric proportional valve 21; the air outlet of the electric proportional valve 21 is communicated with the air inlet of the pressure relief device 1;
pressing the hand wheel 3 to drive the pressure relief device connecting rod 10 to move, and relieving pressure of the pressure relief device 1; meanwhile, the trigger screw 5 triggers the trigger switch 2, the trigger switch 2 sends a signal to the controller, and the controller controls the voltage of the electric proportional valve to be zero.
Optionally, a trigger button 22 is arranged on the trigger switch 2; when the hand wheel is pressed, the trigger screw 5 contacts with the trigger button 22 to trigger the trigger switch 2.
Optionally, the pressure relief device further comprises a connecting member 11, and the trigger switch 2 is fixedly connected with the housing of the pressure relief device 1 through the connecting member 11.
Optionally, the pressure relief device 1 further comprises a spring 9, a guide sleeve 7, the shutter assembly 4 and a housing 8;
one end of the pressure relief device connecting rod 10 is slidably arranged at the upper end of the shell 8, and the other end is connected with the valve component 4; the valve assembly 4 is in sealing contact with a valve seat opening at the lower end of the shell 8; the guide sleeve 7 is arranged on a step in the shell 8, the inner hole of the guide sleeve is in sliding clearance fit with the pressure relief device connecting rod 10, the spring 9 is positioned in the shell 8, one end of the spring is limited on the pressure relief device connecting rod 10, the other end of the spring is limited on the upper end surface of the guide sleeve 7, and the spring 9 is in a compressed state;
when the pressure relief device connecting rod 10 moves downwards, the valve component 4 is separated from the valve seat opening at the lower end of the shell 8, so that air relief and pressure relief are realized.
Optionally, the downward projection of the trigger screw 5 and the trigger button 22 coincide.
Optionally, the trigger screw 5 is fixedly mounted on the hand wheel 3 through a lock nut 6; the hand wheel 3 is a revolution body structure with a threaded through hole.
The utility model has the advantages that: the pressure relief signal is captured by the computer, mechanical and electrical dual pressure relief is realized, the pressure relief effect is good, and the high-pressure-relief valve has a high application value.
Drawings
Fig. 1 is a schematic view of the overall structure of the pressure relief device of the present invention;
fig. 2 is a cross-sectional view of the pressure relief device of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to fig. 1 and 2.
In the embodiment, a pressure relief device with a trigger mechanism is provided, and the pressure relief device comprises a pressure relief device 1, a trigger switch 2, a hand wheel 3, a trigger screw 5, a controller 20 and an electric proportional valve 21.
The pressure relief device 1 comprises a spring 9, a guide sleeve 7, a valve assembly 4, a shell 8 and a pressure relief device connecting rod 10.
One end of the pressure relief device connecting rod 10 is slidably arranged at the upper end of the shell 8, and the other end is connected with the valve component 4; the valve assembly 4 is in sealing contact with a valve seat opening at the lower end of the shell 8; the guide sleeve 7 is arranged on a step in the shell 8, the inner hole of the guide sleeve is in sliding clearance fit with the pressure relief device connecting rod 10, the spring 9 is positioned in the shell 8, one end of the spring is limited on the pressure relief device connecting rod 10, the other end of the spring is limited on the upper end surface of the guide sleeve 7, and the spring 9 is in a compressed state; when the pressure relief device connecting rod 10 moves downwards, the valve component 4 is separated from the valve seat opening at the lower end of the shell 8, so that air relief and pressure relief are realized.
In the embodiment, the trigger switch 2 is fixedly connected with the shell of the pressure relief device 1; the trigger screw 5 is arranged on the hand wheel 3; the hand wheel 3 is connected with a pressure relief device connecting rod 10 of the pressure relief device 1. The trigger switch 2 is in signal connection with the controller 20; the controller 20 is electrically connected with the electric proportional valve 21; the outlet of the electric proportional valve 21 is communicated with the inlet of the pressure relief device 1.
Pressing the hand wheel to drive the pressure relief device connecting rod 10 to move, and relieving pressure of the pressure relief device 1; meanwhile, the trigger screw 5 triggers the trigger switch 2, the trigger switch 2 sends a signal to the controller, and the controller controls the voltage of the electric proportional valve to be zero.
Further, a trigger button 22 is arranged on the trigger switch 2; when the hand wheel is pressed, the trigger screw 5 contacts with the trigger button 22 to trigger the trigger switch 2. Wherein the trigger screw 5 and the trigger button 22 are projectively superposed.
In addition, the pressure relief device also comprises a connecting piece 11, and the trigger switch 2 is fixedly connected with the shell of the pressure relief device 1 through the connecting piece 11. The trigger screw 5 is arranged on the hand wheel 3 through a locking nut; the hand wheel 3 is a revolution body structure with a threaded through hole.
The working principle of the embodiment is as follows:
the specific pressure relief process of the pressure relief device with the trigger mechanism in this embodiment is as follows: the hand wheel 3 is pressed downwards, and the hand wheel 3 is fixedly connected with the pressure relief device connecting rod 10, so that the pressure relief device connecting rod 10 overcomes the elasticity of the spring 9 to synchronously move downwards and drive the valve assembly 4 to be separated from the valve seat opening at the lower end of the shell 8, and the air relief and pressure relief in a mechanical link are realized.
When the hand wheel 3 is pressed, the trigger screw 5 is fixedly connected to the hand wheel 3, and the downward projections of the trigger screw 5 and the trigger button 22 on the trigger switch 2 are overlapped. Therefore, when the trigger screw 5 moves downwards along with the hand wheel 3 synchronously, the trigger screw 5 contacts with the trigger button 22 to trigger the trigger switch 2, the trigger switch 2 sends a signal to the controller 20, and the controller 20 sends a voltage signal to control the control voltage drop of the electric proportional valve 21 to be zero, so that the output pressure of the electric proportional valve 21 is reduced to 0, the electric proportional valve 21 is converted from an air supply state to an air supply stop state, and the pressure relief of an electric link is realized.
Claims (6)
1. A pressure relief device with a trigger mechanism is characterized in that: the pressure relief device with the trigger mechanism comprises a pressure relief device (1), a trigger switch (2), a hand wheel (3), a trigger screw (5), a controller (20) and an electric proportional valve (21);
the trigger switch (2) is fixedly connected with a shell of the pressure relief device (1); the trigger screw (5) is arranged on the hand wheel (3); the hand wheel (3) is connected with a pressure relief device connecting rod (10) of the pressure relief device (1);
the trigger switch (2) is in signal connection with the controller (20); the controller (20) is electrically connected with the electric proportional valve (21); the air outlet of the electric proportional valve (21) is communicated with the air inlet of the pressure relief device (1);
pressing the hand wheel (3) to drive the pressure relief device connecting rod (10) to move, and relieving pressure by the pressure relief device (1); meanwhile, the trigger screw (5) triggers the trigger switch (2), the trigger switch (2) sends a signal to the controller (20), and the controller controls the voltage drop of the electric proportional valve (21) to be zero.
2. The pressure relief device of claim 1, wherein: a trigger button (22) is arranged on the trigger switch (2); when the hand wheel is pressed, the trigger screw (5) is contacted with the trigger button (22) to trigger the trigger switch (2).
3. The pressure relief device of claim 1, wherein: the pressure relief device further comprises a connecting piece (11), and the trigger switch (2) is fixedly connected with the shell of the pressure relief device (1) through the connecting piece (11).
4. The pressure relief device of claim 1, wherein: the pressure relief device (1) also comprises a spring (9), a guide sleeve (7), a valve assembly (4) and a shell (8);
one end of a pressure relief device connecting rod (10) is slidably arranged at the upper end of the shell (8), and the other end of the pressure relief device connecting rod is connected with the valve assembly (4); the valve component (4) is in sealing contact with a valve seat opening at the lower end of the shell (8); the guide sleeve (7) is arranged on a step in the shell (8), and the inner hole of the guide sleeve is in sliding clearance fit with the pressure relief device connecting rod (10); the spring (9) is positioned in the shell (8), one end of the spring is limited on the pressure relief device connecting rod (10), the other end of the spring is limited on the upper end surface of the guide sleeve (7), and the spring (9) is in a compressed state;
when the pressure relief device connecting rod (10) moves downwards, the valve component (4) is separated from the valve seat opening at the lower end of the shell (8), so that air relief is realized.
5. The pressure relief device of claim 1, wherein: the downward projection of the trigger screw (5) and the trigger button (22) is superposed.
6. A pressure unloader according to claim 5, wherein: the trigger screw (5) is fixedly arranged on the hand wheel (3) through a locking nut (6); the hand wheel (3) is a revolving body structure with a threaded through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910893.7U CN214248456U (en) | 2020-12-04 | 2020-12-04 | Pressure relief device with trigger mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910893.7U CN214248456U (en) | 2020-12-04 | 2020-12-04 | Pressure relief device with trigger mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214248456U true CN214248456U (en) | 2021-09-21 |
Family
ID=77736449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022910893.7U Active CN214248456U (en) | 2020-12-04 | 2020-12-04 | Pressure relief device with trigger mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214248456U (en) |
-
2020
- 2020-12-04 CN CN202022910893.7U patent/CN214248456U/en active Active
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