CN210403601U - Quick response pressure switch - Google Patents
Quick response pressure switch Download PDFInfo
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- CN210403601U CN210403601U CN201921710377.0U CN201921710377U CN210403601U CN 210403601 U CN210403601 U CN 210403601U CN 201921710377 U CN201921710377 U CN 201921710377U CN 210403601 U CN210403601 U CN 210403601U
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- wall
- accommodating groove
- pressure switch
- leg
- supporting leg
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Abstract
A fast response pressure switch. The problems of low sensitivity and long reaction time of the traditional tension spring type pressure switch are mainly solved. The method is characterized in that: when the first seesaw is in the switching-on position, the second support leg is arranged above the first support leg, the first support leg is pressed against the inner wall of the bottom of the first accommodating groove, and the second support leg is pressed against the inner wall of the top of the second accommodating groove; when the first warping plate is located at the brake separating position, the first supporting leg is arranged above the second supporting leg, and the first supporting leg is pressed against the inner wall of the top of the first accommodating groove, the second supporting leg is pressed against the inner wall of the bottom of the second accommodating groove. The utility model provides a quick response pressure switch replaces conventional extension spring through the torsional spring, provides bigger instantaneous force value during this torsional spring upset, and reaction time is fast, divides disconnected rapidly.
Description
Technical Field
The utility model belongs to the pressure switch field, concretely relates to quick response pressure switch.
Background
The air compressor industry develops diversification, one pressure value is higher and higher, the pressure difference is small, the CUT-OFF pressure requirement of a common household air compressor reaches 200psi, the pressure difference is 30-40psi, the high pressure directly causes the lifting of the load of the release valve, the traditional tension spring type horizontal switch is limited in the relation of the pressure difference, the force value released by a tension spring at the moment of bouncing is not enough to quickly disconnect a moving contact and a static contact and jack the release valve for air leakage, and the phenomena of switch ignition and air leakage are caused.
The two small tank silent (low noise) air compressors are more and more popular, the power of the motor is low, the flow is low, the air supply is slow when the air compressor works, the air pressure in the tank body pushes the switch diaphragm to move slowly, the whole switch mechanism acts slowly, and further the requirement on the sensitivity of the switch is improved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of background art, the utility model provides a quick response pressure switch mainly solves traditional extension spring formula pressure switch sensitivity and hangs down, the long problem of reaction time.
The utility model adopts the technical proposal that:
a quick response pressure switch comprises a shell, wherein a diaphragm and a fixed contact are arranged in the shell, a support is arranged in the shell, a pushing piece which can be in linkage fit with the diaphragm is arranged on the support, and a pre-pressing spring is in abutting fit on the pushing piece;
also comprises a torsion spring, a first seesaw and a second seesaw,
the torsion spring includes a first leg and a second leg,
one end of the first rocker is provided with a moving contact corresponding to the fixed contact, the middle end of the first rocker is hinged and matched with the bracket, and the other end of the first rocker is provided with a first accommodating groove in limit fit with the first support leg;
one end of the second warping plate is in abutting fit with an elastic reset piece, the middle end of the second warping plate is in hinged fit with the bracket, and the other end of the second warping plate is provided with a second accommodating groove in limiting fit with the second supporting leg;
the first rocker comprises a switch-on position at which the moving contact is contacted with the fixed contact and a switch-off position at which the moving contact leaves the fixed contact after the first rocker rotates;
the pushing piece is used for pushing the switch-on position to the switch-off position to rotate when being stressed;
when the first rocker is in a switch-on position, the second support leg is arranged above the first support leg, and the first support leg is pressed against the inner wall of the bottom of the first accommodating groove and the second support leg is pressed against the inner wall of the top of the second accommodating groove;
when the first wane is located at the brake separating position, the first supporting leg is arranged above the second supporting leg, and the first supporting leg is pressed against the inner wall of the top of the first accommodating groove, the second supporting leg is pressed against the inner wall of the bottom of the second accommodating groove.
The pushing piece comprises a main board, and the membrane is arranged corresponding to the bottom of the main board.
The mainboard is provided with a support arm which is pressed against the bottom of one side of the second wane where the relative elastic reset piece is located.
The second wane inner wall is equipped with first boss and the second boss that corresponds the setting from top to bottom, first boss with the formation of second boss the second holding tank.
One side of the first boss is connected with the inner wall of the second warping plate, and the other side of the first boss extends towards the direction of the second boss to form a blocking wall for preventing the first supporting leg from coming off.
The first warping plate is provided with a fixing plate, and the fixing plate is provided with the first accommodating groove.
The first support leg penetrates through the first accommodating groove and is bent to form a crank arm buckled and pressed on the outer wall of the fixing plate.
The elastic reset piece is a pressure spring.
The support bottom is equipped with the movable groove, the mainboard both sides be equipped with pass the movable groove and with support outer wall sliding fit's curb plate.
The utility model has the advantages that: the utility model provides a quick response pressure switch replaces conventional extension spring through the torsional spring, provides bigger instantaneous force value during this torsional spring upset, and reaction time is fast, divides disconnected rapidly.
Drawings
Fig. 1 is a schematic cross-sectional view of an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of an embodiment of the present invention.
Fig. 3 is a partial perspective view (closing position) of an embodiment of the present invention.
Fig. 4 is a partial perspective view (brake separating position) of an embodiment of the present invention.
Fig. 5 is a schematic perspective view of a second rocker according to an embodiment of the present invention.
Fig. 6 is a schematic perspective view of a first rocker according to an embodiment of the present invention.
Fig. 7 is a partial perspective view of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, the quick-response pressure switch comprises a shell 1, wherein a diaphragm 11 and a static contact 12 are arranged in the shell, a support 2 is arranged in the shell, a pushing piece 4 which can be in linkage fit with the diaphragm is arranged on the support, and a pre-pressing spring 41 is in abutting press fit on the pushing piece; the device is characterized by further comprising a torsion spring 7, a first warping plate 5 and a second warping plate 6, wherein the torsion spring comprises a first supporting leg 71 and a second supporting leg 72, one end of the first warping plate is provided with a moving contact 51 corresponding to the fixed contact, the middle end of the first warping plate is hinged and matched with the bracket, and the other end of the first warping plate is provided with a first accommodating groove 52 in limiting and matching with the first supporting leg; one end of the second warping plate is in abutting fit with an elastic reset piece 61, the middle end of the second warping plate is in hinged fit with the bracket, and the other end of the second warping plate is provided with a second accommodating groove 62 in limit fit with the second supporting leg; the first rocker comprises a switch-on position at which the moving contact is contacted with the fixed contact and a switch-off position at which the moving contact leaves the fixed contact after the first rocker rotates; the pushing piece is used for pushing the switch-on position to the switch-off position to rotate when being stressed; when the first rocker is in a switch-on position, the second support leg is arranged above the first support leg, and the first support leg is pressed against the inner wall of the bottom of the first accommodating groove and the second support leg is pressed against the inner wall of the top of the second accommodating groove; when the first wane is located at the brake separating position, the first supporting leg is arranged above the second supporting leg, and the first supporting leg is pressed against the inner wall of the top of the first accommodating groove, the second supporting leg is pressed against the inner wall of the bottom of the second accommodating groove.
In a conventional state, namely a closing state, the second support leg is arranged above the first support leg, the first support leg is pressed against the inner wall of the bottom of the first accommodating groove, the second support leg is pressed against the inner wall of the top of the second accommodating groove, when the air pressure rises to push the membrane to move upwards, the membrane pushes the pushing piece, the pushing piece moves upwards to drive the second rocker to rotate clockwise, meanwhile, the pushing piece jacks up the pre-pressing spring, one end of the second rocker is connected with the torsion spring, the torsion spring is continuously compressed along with the rotation of the second rocker (the force application direction is stored potential energy for pushing the moving contact to the static contact at the moment), when the torsion spring is compressed to a torsion spring overturning critical point (a settable shutdown pressure value), the torsion spring instantaneously releases potential energy to drive the first rocker to rotate rapidly, the moving contact arranged on the first rocker is driven to be rapidly disconnected from the static contact arranged on the switch body, the power supply is cut off, the first supporting leg is disposed above the second supporting leg (see fig. 4), and the first supporting leg is pressed against the inner wall of the bottom of the first accommodating groove, and the second supporting leg is pressed against the inner wall of the top of the second accommodating groove, preferably, at the same time, the oscillating piece 94 mounted on the first rocker pushes the ejector pin of the release valve to release air, specifically, the release valve includes the ejector pin 95, and the oscillating piece pushes the ejector pin to retreat to release pressure; the oscillating member may be a boss provided on the second rocker.
When the air pressure is reduced, the pressure regulating spring pushes the pushing piece to move downwards through the pre-pressing spring, meanwhile, the reset spring pushes the second warping plate to rotate along with the pushing piece, the torsion spring is continuously compressed along with the rotation of the second warping plate, when the torsion spring is compressed to a torsion spring overturning critical point, potential energy is instantaneously released in the overturning of the torsion spring, the first warping plate connected with the torsion spring is driven to rotate rapidly, the movable contact mounted on the first warping plate and the static contact mounted on the switch body are driven to be closed rapidly, a power supply is connected, meanwhile, the swinging piece mounted on the first warping plate resets, the opening position is released, and the release valve is restarted.
The prepressing spring can be directly pressed on the pushing piece, and also can be pressed on the prepressing screw 410, and then the prepressing screw is connected with the pushing piece, the first warping plate is provided with a first hinging shaft 50, the second warping plate is provided with a second hinging shaft 60, and the bracket is provided with a first hinging hole 201 in hinged fit with the first hinging shaft and a second hinging hole 202 in hinged fit with the second hinging shaft.
In this embodiment, as shown, the urging member includes a main plate 42, and the diaphragm is disposed corresponding to the bottom of the main plate.
In this embodiment, as shown in the figure, a support arm 43 is disposed on the main board, and the support arm is pressed against the bottom of the second rocker at the side where the relative elastic reset piece is located. Simple structure for the bottom of better drive second wane.
In this embodiment, as shown in the figure, the inner wall of the second rocker is provided with a first boss 63 and a second boss 64 which are correspondingly arranged up and down, and the second accommodating groove is formed between the first boss and the second boss. The limiting effect is good, and the anti-dropping device is not easy to drop off.
In this embodiment, as shown in the figure, one side of the first protruding platform is connected to the inner wall of the second tilting plate, and the other side of the first protruding platform extends to the direction of the second protruding platform to form a blocking wall 631 for preventing the first leg from coming off. The limiting effect is good, and the anti-dropping device is not easy to drop off.
In this embodiment, as shown in the figure, a fixing plate 53 is disposed on the first tilting plate, and the first receiving groove is disposed on the fixing plate. Preferably, the first accommodating groove is arranged in a U shape.
In this embodiment, as shown in the figure, the first leg is bent through the first receiving groove to form a crank 711 buckled on the outer wall of the fixing plate. The limiting effect is good, and the anti-dropping device is not easy to drop off.
In this embodiment, as shown in the figure, the elastic restoring member is a compression spring. Simple structure and low cost.
In this embodiment, as shown in the figure, the bottom of the bracket is provided with a movable slot 23, and two sides of the main board are provided with side plates 44 which pass through the movable slot and are in sliding fit with the outer wall of the bracket. The operation is stable and the falling-off is not easy.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.
Claims (9)
1. A fast response pressure switch, includes casing (1), be equipped with diaphragm (11) and static contact (12) in the casing, its characterized in that: a support (2) is arranged in the shell, a pushing piece (4) which can be in linkage fit with the membrane is arranged on the support, and a pre-pressing spring (41) is in abutting fit on the pushing piece;
also comprises a torsion spring (7), a first rocker (5) and a second rocker (6),
the torsion spring comprises a first leg (71) and a second leg (72),
one end of the first warping plate is provided with a moving contact (51) corresponding to the fixed contact, the middle end of the first warping plate is hinged and matched with the bracket, and the other end of the first warping plate is provided with a first accommodating groove (52) in limit matching with the first supporting leg;
one end of the second warping plate is in abutting press fit with an elastic reset piece (61), the middle end of the second warping plate is in hinged fit with the bracket, and the other end of the second warping plate is provided with a second accommodating groove (62) in limit fit with the second supporting leg;
the first rocker comprises a switch-on position at which the moving contact is contacted with the fixed contact and a switch-off position at which the moving contact leaves the fixed contact after the first rocker rotates;
the pushing piece is used for pushing the switch-on position to the switch-off position to rotate when being stressed;
when the first rocker is in a switch-on position, the second support leg is arranged above the first support leg, and the first support leg is pressed against the inner wall of the bottom of the first accommodating groove and the second support leg is pressed against the inner wall of the top of the second accommodating groove;
when the first wane is located at the brake separating position, the first supporting leg is arranged above the second supporting leg, and the first supporting leg is pressed against the inner wall of the top of the first accommodating groove, the second supporting leg is pressed against the inner wall of the bottom of the second accommodating groove.
2. A fast response pressure switch according to claim 1, wherein: the pushing piece comprises a main plate (42), and the membrane is arranged corresponding to the bottom of the main plate.
3. A fast response pressure switch according to claim 2, wherein: and a support arm (43) is arranged on the main board and is pressed against the bottom of one side of the second warping plate where the relative elastic reset piece is located.
4. A fast response pressure switch according to claim 1, wherein: the second wane inner wall is equipped with first boss (63) and second boss (64) that correspond the setting from top to bottom, first boss with the formation of second boss the second holding tank.
5. The fast response pressure switch of claim 4, wherein: one side of the first boss is connected with the inner wall of the second wane, and the other side of the first boss extends to the direction of the second boss to form a blocking wall (631) for preventing the first support leg from being separated.
6. A fast response pressure switch according to claim 1, wherein: be equipped with fixed plate (53) on the first wane, be equipped with on the fixed plate first holding tank.
7. The fast response pressure switch of claim 6, wherein: the first support leg penetrates through the first accommodating groove and is bent to form a crank arm (711) buckled and pressed on the outer wall of the fixing plate.
8. A fast response pressure switch according to claim 1, wherein: the elastic reset piece is a pressure spring.
9. A fast response pressure switch according to claim 2, wherein: the bottom of the support is provided with a movable groove (23), and two sides of the main board are provided with side plates (44) which penetrate through the movable groove and are in sliding fit with the outer wall of the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921710377.0U CN210403601U (en) | 2019-10-14 | 2019-10-14 | Quick response pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921710377.0U CN210403601U (en) | 2019-10-14 | 2019-10-14 | Quick response pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210403601U true CN210403601U (en) | 2020-04-24 |
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ID=70343316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921710377.0U Active CN210403601U (en) | 2019-10-14 | 2019-10-14 | Quick response pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210403601U (en) |
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2019
- 2019-10-14 CN CN201921710377.0U patent/CN210403601U/en active Active
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