CN112349541B - Device for adjusting pressure range of mechanical pressure switch - Google Patents
Device for adjusting pressure range of mechanical pressure switch Download PDFInfo
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- CN112349541B CN112349541B CN202011275809.7A CN202011275809A CN112349541B CN 112349541 B CN112349541 B CN 112349541B CN 202011275809 A CN202011275809 A CN 202011275809A CN 112349541 B CN112349541 B CN 112349541B
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- adjusting
- ring
- limiting
- sleeve
- pressure switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
- H01H35/2614—Means for adjustment of "ON" or "OFF" operating pressure by varying the bias on the pressure sensitive element
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0089—Transmitting or indicating the displacement of pistons by electrical, electromechanical, magnetic or electromagnetic means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a device for adjusting the pressure range of a mechanical pressure switch, which comprises a sleeve, wherein the lower end of the sleeve is fixedly connected with an installation head, the inner side of the installation head is connected with a detection piston in a sliding manner, the middle part of the upper end of the detection piston and the lower end of a piston rod form a fixed connection structure, the upper end of the piston rod and the inner side of a limiting hole form a sliding connection structure, the limiting hole is arranged in the middle part of the lower end of the sleeve, the end head of the upper end of the piston rod is fixedly connected to the middle part of the surface of the lower end of a push plate, the outer surface of the push plate is uniformly provided with 4 limiting blocks in a circumferential manner, and the limiting blocks are all connected to the inner side of a sliding groove in a sliding manner. This a device for adjusting mechanical type pressure switch pressure range can be convenient for simply swift adjusts the pressure value that needs the detection, and can carry out remote regulation to need not dismantle equipment shell, improved work efficiency greatly, reduced staff's intensity of labour.
Description
Technical Field
The invention relates to the technical field of mechanical pressure switches, in particular to a device for adjusting the pressure range of a mechanical pressure switch.
Background
The mechanical pressure switch is a commonly used sensing element, and mainly triggers a micro switch through mechanical deformation to output an electric signal, and the mechanical pressure switch is mainly used for detecting whether pressure reaches a specified range or not, when the pressure is increased, the pressure acts on a pressure sensing component, such as a piston, a thin film and the like, and then an internal mechanical mechanism drives the micro switch to finally output the electric signal.
But current mechanical type pressure switch is not convenient for simply swift adjusts the detection pressure value, and is not convenient for carry out remote adjustment, current mechanical type pressure switch need use the screwdriver to rotate adjusting screw usually and adjust the pressure value that detects, it is comparatively troublesome to operate, and just need the use tool can adjust, if mechanical type pressure switch installs the inside of equipment, will dismantle the shell of equipment earlier when needing to adjust the pressure value once more and adjust again, work load is great, work efficiency is lower.
Disclosure of Invention
The present invention provides a device for adjusting a pressure range of a mechanical pressure switch, so as to solve the problems that the conventional mechanical pressure switch is inconvenient to simply and rapidly adjust a detected pressure value and is inconvenient to remotely adjust in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a device for adjusting the pressure range of a mechanical pressure switch comprises a sleeve, wherein the lower end of the sleeve is fixedly connected with an installation head, the inner side of the installation head is connected with a detection piston in a sliding manner, the middle part of the upper end of the detection piston and the lower end of a piston rod form a fixed connection structure, the upper end of the piston rod and the inner side of a limiting hole form a sliding connection structure, the limiting hole is arranged in the middle part of the lower end of the sleeve, the upper end head of the piston rod is fixedly connected to the middle part of the lower end surface of a push plate, the outer side surface of the push plate is uniformly provided with 4 limiting blocks in a circumferential manner, the limiting blocks are all connected to the inner side of a sliding groove in a sliding manner, the sliding groove is uniformly provided with 4 limiting blocks in a circumferential manner on the inner side of the lower end of the sleeve, the middle part of the upper end of the push plate is connected with the lower end of a connecting rod, and the outer side of the connecting rod is provided with a spring in an embedded manner, and the middle part of the upper end of the connecting rod is fixedly connected with a mandril, the upper end of the sleeve is provided with a mounting port, the middle part of the mounting port is provided with a limit groove, the inner side of the limit groove and the clamping ring form a bearing connection structure, the clamping ring is arranged in the middle part of the outer side of the adjusting ring, the upper end of the adjusting ring is fixedly connected with a driving ring, the upper end of the driving ring is provided with a limit ring, the outer side of the driving ring is connected with an adjusting worm wheel in a nesting manner, the inner side of the adjusting worm wheel is uniformly provided with 4 driving blocks in a circumferential form, the driving blocks and the movable opening form a sliding connection structure, the movable opening is uniformly provided with 4 driving rings in a circumferential form, the inner side of the adjusting ring and the outer side of the pressing block form a threaded connection structure, the inner side of the pressing block is provided with a guide hole, the guide hole and the connecting rod form a sliding connection structure, and the outer side of the upper end of the sleeve is provided with a protective shell, and the front side of protective housing is provided with the regulation opening to the upper end of protective housing is provided with micro-gap switch, the right side of protective housing is provided with the transmission opening, and transmission open-ended front end is provided with the bearing frame to the rear end of bearing frame constitutes bearing connection structure with the front end of adjusting the worm, the rear end of adjusting the worm is connected with the axle head of motor, and motor fixed mounting is in the outside of protective housing, and the regulation worm meshes with the regulation worm wheel through the transmission opening mutually.
Preferably, the mounting head is in a round tube shape, the outer side of the mounting head is provided with threads, and the inner diameter of the mounting head is larger than that of the limiting hole.
Preferably, the structure shape of the sliding groove is a rectangular groove, and the position of the sliding groove corresponds to the position of the limiting block one by one.
Preferably, the structural shape of the connecting rod is hexagonal prism shape, and the structural shape of the connecting rod is matched with the structural shape of the guide hole.
Preferably, the upper end of the spring is attached to the lower end surface of the pressing block, the lower end of the spring is attached to the upper end surface of the pushing plate, and the spring is arranged on the inner side of the sleeve in a nested mode.
Preferably, the structure shape of the limiting groove is an annular groove, and the structure shape of the limiting groove is matched with the structure shape of the clamping ring.
Preferably, the structure shape of the limiting ring is a circular ring shape, the diameter of the limiting ring is larger than that of the driving ring, and the diameter of the limiting ring is larger than the inner diameter of the adjusting worm wheel.
Preferably, the transmission opening penetrates through a side wall of the protective shell, and the position of the transmission opening corresponds to the lower end of the driving ring.
Compared with the prior art, the invention has the beneficial effects that: this a device for adjusting mechanical type pressure switch pressure range can be convenient for simply swift adjust the pressure value that needs the detection, and can carry out remote control to need not dismantle equipment shell, improved work efficiency greatly, reduced staff's intensity of labour:
1. the adjusting worm wheel is pushed at the adjusting opening, the adjusting worm wheel is pushed to the upper end of the driving ring, the adjusting worm wheel is separated from being meshed with the adjusting worm, the adjusting worm wheel is stirred by hands, the driving ring is driven to rotate by clamping of 4 driving blocks on the adjusting worm wheel and the movable opening, the driving ring drives the adjusting ring to rotate, the adjusting ring drives the pressing block to move through a threaded connection structure with the pressing block, and the pressing block is limited by the connecting rod to rotate, so that the pressing block moves up and down to push the pressing block to press or loosen the spring, the detected pressure value is adjusted, the adjusting worm wheel can be conveniently adjusted by directly stirring the adjusting worm wheel by hands, tools are not needed, the adjusting time is saved, and the working efficiency is improved;
2. after the mechanical pressure switch is installed, the adjusting worm wheel slides downwards, the adjusting worm wheel is meshed with the adjusting worm, when the detected pressure value needs to be adjusted again in the later period, the motor is started, the motor drives the adjusting worm to drive the adjusting worm wheel to rotate, the detected pressure value is adjusted through the operation, the detected pressure value can be adjusted directly through the motor, the shell of the device needs to be detached when the later adjustment is prevented, two modes of manual adjustment and electric control adjustment can be switched, and the application range is wide.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view of point A of FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional front view of the present invention;
FIG. 4 is an enlarged view of point B of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the internal perspective structure of the present invention;
FIG. 6 is an enlarged view of point C of FIG. 5 according to the present invention;
fig. 7 is a schematic top sectional view of the drive ring of the present invention.
In the figure: 1. a sleeve; 2. a mounting head; 3. detecting the piston; 4. a piston rod; 5. a limiting hole; 6. pushing a plate; 7. a limiting block; 8. a chute; 9. a connecting rod; 10. a top rod; 11. a spring; 12. an installation port; 13. a limiting groove; 14. a collar; 15. an adjusting ring; 16. a drive ring; 17. a limiting ring; 18. adjusting the worm gear; 19. a drive block; 20. a movable opening; 21. briquetting; 22. a guide hole; 23. a protective shell; 24. adjusting the opening; 25. a microswitch; 26. a drive opening; 27. a bearing seat; 28. adjusting the worm; 29. an electric motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a device for adjusting the pressure range of a mechanical pressure switch comprises a sleeve 1, an installation head 2, a detection piston 3, a piston rod 4, a limiting hole 5, a push plate 6, a limiting block 7, a sliding chute 8, a connecting rod 9, a push rod 10, a spring 11, an installation opening 12, a limiting groove 13, a clamping ring 14, an adjusting ring 15, a driving ring 16, a limiting ring 17, an adjusting worm wheel 18, a driving block 19, a movable opening 20, a pressing block 21, a guide hole 22, a protective shell 23, an adjusting opening 24, a micro switch 25, a transmission opening 26, a bearing seat 27, an adjusting worm 28 and a motor 29, wherein the lower end of the sleeve 1 is fixedly connected with the installation head 2, the inner side of the installation head 2 is slidably connected with the detection piston 3, the middle part of the upper end of the detection piston 3 and the lower end of the piston rod 4 form a fixed connection structure, the upper end of the piston rod 4 and the inner side of the limiting hole 5 form a sliding connection structure, the limiting hole 5 is arranged in the middle of the lower end of the sleeve 1, the upper end of the piston rod 4 is fixedly connected to the middle of the lower end surface of the push plate 6, 4 limiting blocks 7 are uniformly arranged on the outer side surface of the push plate 6 in a circumferential form, the limiting blocks 7 are all connected to the inner side of the sliding chute 8 in a sliding manner, 4 sliding chutes 8 are uniformly arranged on the inner side of the lower end of the sleeve 1 in a circumferential form, the middle of the upper end of the push plate 6 is connected with the lower end of the connecting rod 9, the outer side of the connecting rod 9 is provided with a spring 11 in an embedded manner, the middle of the upper end of the connecting rod 9 is fixedly connected with an ejector rod 10, the upper end of the sleeve 1 is provided with a mounting port 12, the middle of the mounting port 12 is provided with a limiting groove 13, the inner side of the limiting groove 13 and a clamping ring 14 form a bearing connection structure, the clamping ring 14 is arranged in the middle of the outer side of the adjusting ring 15, and the upper end of the adjusting ring 15 is fixedly connected with a driving ring 16, the upper end of the driving ring 16 is provided with a limit ring 17, the outer side of the driving ring 16 is connected with an adjusting worm wheel 18 in an embedded manner, the inner side of the adjusting worm wheel 18 is uniformly provided with 4 driving blocks 19 in a circumferential manner, the driving blocks 19 and the movable opening 20 form a sliding connection structure, the movable opening 20 is uniformly provided with 4 driving blocks in a circumferential manner on the driving ring 16, the inner side of the adjusting ring 15 and the outer side of the pressing block 21 form a threaded connection structure, the inner side of the pressing block 21 is provided with a guide hole 22, the guide hole 22 and the connecting rod 9 form a sliding connection structure, the outer side of the upper end of the sleeve 1 is provided with a protective shell 23, the front side of the protective shell 23 is provided with an adjusting opening 24, the upper end of the protective shell 23 is provided with a microswitch 25, the right side of the protective shell 23 is provided with a transmission opening 26, the front end of the transmission opening 26 is provided with a bearing seat 27, the rear end of the bearing seat 27 and the front end of the adjusting worm 28 form a bearing connection structure, the rear end of the adjusting worm 28 is connected with the shaft end of the motor 29, the motor 29 is fixedly installed on the outer side of the protective shell 23, and the adjusting worm 28 is meshed with the adjusting worm wheel 18 through the transmission opening 26.
The structural shape of installation head 2 is the pipe shape, and the outside of installation head 2 is provided with the screw thread, and the internal diameter of installation head 2 is greater than the diameter of spacing hole 5, can be convenient for make through the pipe shape structure of installation head 2 detect piston 3 can carry out stable slip inside installation head 2, make the installation that covers that the device can be swift through the screw thread of the installation head 2 outside, and can restrict the position of detecting piston 3 through spacing hole 5, prevent that the too big displacement that makes detection piston 3 of pressure is too big, thereby lead to the inner structure to damage.
The structural shape of spout 8 is the rectangular channel, and the position one-to-one of spout 8 and stopper 7, and stability when can be convenient for improve push pedal 6 and connecting rod 9 up-and-down motion through the cooperation of spout 8 and stopper 7 is spacing to push pedal 6 simultaneously, prevents that push pedal 6 and connecting rod 9 from rotating.
The structural shape of connecting rod 9 is hexagonal prism shape, and the structural shape of connecting rod 9 cooperatees with the structural shape of guiding hole 22, can be convenient for cooperate with guiding hole 22 through the hexagonal prism structure of connecting rod 9, prevents that briquetting 21 from rotating to can carry out the up-and-down motion through screw drive briquetting 21 when adjusting ring 15 rotates.
The structure shape of spacing groove 13 is the ring channel, and the structure shape of spacing groove 13 cooperatees with the structure shape of rand 14, can be convenient for make adjusting ring 15 can rotate the time upper and lower position fix through the cooperation of spacing groove 13 with rand 14, self offset when preventing adjusting ring 15 drive briquetting 21 from reciprocating.
The limiting ring 17 is in a circular ring shape, the diameter of the limiting ring 17 is larger than that of the driving ring 16, and the diameter of the limiting ring 17 is larger than the inner diameter of the adjusting worm wheel 18, so that the position of the adjusting worm wheel 18 can be conveniently limited by the limiting ring 17, and the adjusting worm wheel 18 is prevented from being separated from the driving ring 16 when sliding up and down.
The transmission opening 26 penetrates through the side wall of the protective shell 23, and the position of the transmission opening 26 corresponds to the lower end of the drive ring 16, so that the adjusting worm 28 can be meshed with the inner adjusting worm wheel 18 through the transmission opening 26, and the adjusting worm 28 can be driven by the motor 29 to drive the adjusting worm wheel 18 to rotate and then be aligned.
The working principle is as follows: according to fig. 1, the mechanical pressure switch is first mounted to a desired position by a mounting head 2;
when the mechanical pressure switch is used for detecting, the detection piston 3 and the piston rod 4 are pushed to move upwards through pressure, the piston rod 4 pushes the push plate 6 and the connecting rod 9 to move upwards, finally, the ejector rod 10 on the connecting rod 9 is in contact with the microswitch 25, and an electric signal is output
According to fig. 3, 5 and 7, the adjusting worm wheel 18 is pushed at the adjusting opening 24, and the adjusting worm wheel 18 drives the driving block 19 to slide upwards along the movable opening 20;
pushing the adjusting worm wheel 18 to the upper end of the drive ring 16, so that the adjusting worm wheel 18 is disengaged from the adjusting worm 28;
the adjusting worm wheel 18 is shifted by hand, and the driving ring 16 is driven to rotate by the clamping of the 4 driving blocks 19 on the adjusting worm wheel 18 and the movable opening 20;
the driving ring 16 drives the adjusting ring 15 to rotate, and the adjusting ring 15 drives the pressing block 21 to move through a threaded connection structure with the pressing block 21;
the pressing block 21 is limited through the matching of the inner guide hole 22 and the connecting rod 9, and the connecting rod 9 is limited through the matching of the limiting block 7 on the lower end push plate 6 and the sliding groove 8;
when the adjusting ring 15 rotates, the pressing block 21 does not rotate, so that the pressing block 21 is driven to move in the up-and-down direction through the threaded connection structure of the pressing block 21 and the adjusting ring 15;
when the press block 21 moves downwards, the spring 11 is extruded, and the spring 11 contracts, so that the resistance of the upward movement of the push plate 6 and the connecting rod 9 is increased, the detection piston 3 can move upwards only by applying higher pressure, and the pressure value detected by the mechanical pressure switch is increased;
when the press block 21 moves upwards, the spring 11 is released, so that the resistance of the upward movement of the push plate 6 and the connecting rod 9 is reduced, the detection piston 3 can move upwards more easily, and the pressure value detected by the mechanical pressure switch is reduced;
after the mechanical pressure switch is installed, the adjusting worm wheel 18 slides downwards to enable the adjusting worm wheel 18 to be meshed with the adjusting worm 28;
when the detected pressure value needs to be adjusted again at a later stage, the motor 29 is started, and the motor 29 drives the adjusting worm 28 to stably rotate on the bearing block 27;
the adjusting worm 28 is engaged with the adjusting worm wheel 18 through the transmission opening 26 to drive the adjusting worm wheel 18 to rotate, and finally, the detected pressure value is adjusted through the above operation, which is well known in the prior art by those skilled in the art and is not described in detail in the present specification.
It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A device for regulating the pressure range of a mechanical pressure switch, comprising a sleeve (1), characterized in that: the lower end of the sleeve (1) is fixedly connected with an installation head (2), the inner side of the installation head (2) is connected with a detection piston (3) in a sliding mode, the middle of the upper end of the detection piston (3) and the lower end of a piston rod (4) form a fixed connection structure, the upper end of the piston rod (4) and the inner side of a limiting hole (5) form a sliding connection structure, the limiting hole (5) is arranged in the middle of the lower end of the sleeve (1), the upper end head of the piston rod (4) is fixedly connected with the middle of the lower end surface of a push plate (6), the outer side surface of the push plate (6) is uniformly provided with 4 limiting blocks (7) in a circumferential mode, the limiting blocks (7) are all connected in the inner side of a sliding groove (8), the sliding groove (8) is uniformly provided with 4 limiting blocks in the circumferential mode on the inner side of the lower end of the sleeve (1), the middle of the upper end of the push plate (6) is connected with the lower end of a connecting rod (9), the outer side of the connecting rod (9) is provided with a spring (11) in an embedded mode, the middle of the upper end of the connecting rod (9) is fixedly connected with a push rod (10), the upper end of the sleeve (1) is provided with an installation port (12), the middle of the installation port (13) is arranged on the middle of the installation port, the bearing (14) is arranged on the limiting ring (14) and is arranged on the inner side of the limiting ring (14) and is arranged on the limiting ring (14) and is connected with a limiting ring structure, and a bearing (14) on the limiting ring (14), a driving ring (16) is fixedly connected to the upper end of the adjusting ring (15), a limiting ring (17) is arranged at the upper end of the driving ring (16), an adjusting worm wheel (18) is connected to the outer side of the driving ring (16) in a nested manner, 4 driving blocks (19) are uniformly arranged on the inner side of the adjusting worm wheel (18) in a circumferential manner, the driving blocks (19) and the movable opening (20) form a sliding connection structure, the movable opening (20) is uniformly arranged on the driving ring (16) in a circumferential manner, the inner side of the adjusting ring (15) and the outer side of the pressing block (21) form a threaded connection structure, the inner side of the pressing block (21) is provided with a guide hole (22), the guide hole (22) and a connecting rod (9) form a sliding connection structure, the outer side of the upper end of the sleeve (1) is provided with a protective shell (23), the front side of the protective shell (23) is provided with an adjusting opening (24), the upper end of the protective shell (23) is provided with a microswitch (25), the right side of the protective shell (23) is provided with a transmission opening (26), the front end of the transmission opening (26) is provided with a front end of the worm, the bearing seat (27) is connected with a rear end of a bearing seat (28) of a worm, and the adjusting motor (28) is connected with a rear end of the bearing seat (28) of the adjusting worm (29), and the motor (29) is fixedly arranged on the outer side of the protective shell (23), and the adjusting worm (28) is meshed with the adjusting worm wheel (18) through the transmission opening (26).
2. A device for adjusting the pressure range of a mechanical pressure switch as defined in claim 1, wherein: the mounting head (2) is in a round tube shape, threads are arranged on the outer side of the mounting head (2), and the inner diameter of the mounting head (2) is larger than the diameter of the limiting hole (5).
3. A device for adjusting the pressure range of a mechanical pressure switch as defined in claim 1, wherein: the structural shape of the sliding groove (8) is a rectangular groove, and the position of the sliding groove (8) corresponds to the position of the limiting block (7) one by one.
4. A device for adjusting the pressure range of a mechanical pressure switch as defined in claim 1, wherein: the structural shape of the connecting rod (9) is hexagonal prism-shaped, and the structural shape of the connecting rod (9) is matched with that of the guide hole (22).
5. A device for adjusting the pressure range of a mechanical pressure switch as defined in claim 1, wherein: the upper end of the spring (11) is attached to the lower end surface of the pressing block (21), the lower end of the spring (11) is attached to the upper end surface of the pushing plate (6), and the spring (11) is arranged on the inner side of the sleeve (1) in a nested mode.
6. A device for adjusting the pressure range of a mechanical pressure switch as defined in claim 1, wherein: the structure shape of the limiting groove (13) is an annular groove, and the structure shape of the limiting groove (13) is matched with the structure shape of the clamping ring (14).
7. A device for adjusting the pressure range of a mechanical pressure switch as defined in claim 1, wherein: the limiting ring (17) is in a circular ring shape, the diameter of the limiting ring (17) is larger than that of the driving ring (16), and the diameter of the limiting ring (17) is larger than the inner diameter of the adjusting worm wheel (18).
8. A device for adjusting the pressure range of a mechanical pressure switch as defined in claim 1, wherein: the transmission opening (26) penetrates through the side wall of the protective shell (23), and the position of the transmission opening (26) corresponds to the lower end of the driving ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011275809.7A CN112349541B (en) | 2020-11-16 | 2020-11-16 | Device for adjusting pressure range of mechanical pressure switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011275809.7A CN112349541B (en) | 2020-11-16 | 2020-11-16 | Device for adjusting pressure range of mechanical pressure switch |
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| CN112349541A CN112349541A (en) | 2021-02-09 |
| CN112349541B true CN112349541B (en) | 2023-01-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114284105B (en) * | 2021-12-28 | 2023-09-15 | 江苏盛华电气有限公司 | Gas impulse resistance change-over switch and use method thereof |
| CN118116772B (en) * | 2024-04-30 | 2024-07-09 | 常州天利智能控制股份有限公司 | Mechanical nuclear-grade low-voltage pressure switch |
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| GB1497141A (en) * | 1974-01-18 | 1978-01-05 | Kyl I Farsta Ab | Electrical switching device |
| EP0685862A1 (en) * | 1994-05-31 | 1995-12-06 | Cesare Gallone | An adjustable-sensitivity pressure meter |
| US5554834A (en) * | 1994-08-04 | 1996-09-10 | Argus Machine Co. Ltd. | Pressure switch |
| CN2475130Y (en) * | 2001-03-01 | 2002-01-30 | 汤征宁 | Dynamic pressure inductive switch for pressurizing water pump |
| CN103038465A (en) * | 2010-06-04 | 2013-04-10 | 汉斯延森注油器公司 | Hydraulic System For Central Lubrication Of Engine Cylinders |
| CN207282400U (en) * | 2017-10-19 | 2018-04-27 | 青岛伟隆阀门股份有限公司 | Adjustable pressure switch |
| CN209658079U (en) * | 2019-03-25 | 2019-11-19 | 上海安巢在线控制技术股份有限公司 | A kind of baroswitch convenient for adjusting air pressure size |
| CN210403602U (en) * | 2019-07-23 | 2020-04-24 | 江元(重庆)科技集团股份有限公司 | Mechanical pressure switch |
| CN210778394U (en) * | 2019-10-25 | 2020-06-16 | 广州市智领机电设备有限公司 | Automatic pressure regulating switch structure of electric pressure cooker |
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| CN112349541A (en) | 2021-02-09 |
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