CN114814567A - Mini switch multistation fatigue life check out test set - Google Patents
Mini switch multistation fatigue life check out test set Download PDFInfo
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- CN114814567A CN114814567A CN202210496578.5A CN202210496578A CN114814567A CN 114814567 A CN114814567 A CN 114814567A CN 202210496578 A CN202210496578 A CN 202210496578A CN 114814567 A CN114814567 A CN 114814567A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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Abstract
The mini switch multi-station fatigue life detection equipment comprises an air supply system, a base, a mini switch detection assembly, a timer and a power switch, wherein a plurality of accommodating grooves are formed in the base at intervals, a first air hole is formed in the center of each accommodating groove in a downward direction, a plurality of air inlets are formed in the side wall of the base at intervals, the air inlets correspond to the first air holes one by one and are communicated with the air supply system, and the air inlets are connected with the air supply system through air pipes; the mini switch detection assembly is detachably arranged in the containing groove and connected with the counter, and the power switch is connected with the counter. The invention integrates a plurality of mini switch detection components on one base, can realize the fatigue life detection of a plurality of mini switches through automatic control, can reduce the working intensity of operators and accelerate the detection efficiency.
Description
Technical Field
The invention belongs to the technical field of pressure switch detection, and particularly relates to mini switch multi-station fatigue life detection equipment.
Background
A pressure switch is a simple pressure control device that can give an alarm or control signal when the measured pressure reaches a rated value. When the measured pressure exceeds the rated value, the free end of the elastic element generates displacement to push the switch element directly or after comparison, so that the on-off state of the switch element is changed, and the purpose of controlling the measured pressure is achieved. The mini switch is one of the pressure switches, and has wide application. In order to ensure the product delivery quality, the fatigue life of the mini switch needs to be tested before delivery.
Disclosure of Invention
The invention provides a mini switch multi-station fatigue life detection device which can realize simultaneous detection of fatigue lives of a plurality of mini switches.
The technical scheme adopted by the invention is as follows: a mini switch multi-station fatigue life detection device comprises an air supply system, a base, a mini switch detection assembly, a timer and a power switch, wherein a plurality of accommodating grooves are formed in the base at intervals, a first air hole is formed in the center of each accommodating groove in a downward direction, a plurality of air inlet holes are formed in the side wall of the base at intervals, the air inlet holes correspond to the first air holes one by one and are communicated with the air supply system, and the air inlet holes are connected with the air supply system through air pipes; the mini switch detection assembly is detachably arranged in the containing groove and connected with the counter, and the power switch is connected with the counter.
Preferably, the gas supply system comprises a pressure reducing valve, a throttle valve, an electromagnetic valve, a pressure sensor, a needle valve and a controller, the gas source sequentially passes through the pressure reducing valve, the throttle valve and the electromagnetic valve through a gas pipe, the gas source is divided into two paths through a tee joint to the outlet of the electromagnetic valve, and each path is respectively connected with a gas inlet hole in the side wall of the base through a plurality of tee joints; the pressure sensor is arranged between the outlet of the electromagnetic valve and the tee joint, the air release pipe is arranged between the pressure sensor and the air path of the electromagnetic valve, the needle valve is arranged on the air release pipe, the motor for controlling the on-off of the needle valve is connected to the needle valve, and the electromagnetic valve, the pressure sensor and the motor are respectively connected with the controller.
Preferably, the mini switch detection assembly comprises an air guide seat, a mini switch and a locking sleeve, the air guide seat is in threaded connection with the inside of the accommodating groove, a second air hole corresponding to the first air hole is formed in the center of the air guide seat, a first groove is formed in the concave part of the top of the air guide seat, and an elastic sheet is movably arranged in the first groove; the mini switch is arranged in the first groove of the air guide seat and compresses the circumferential edge of the elastic sheet, and the base pin of the mini switch is upward; the locking sleeve is sleeved on the upper part of the outer side of the air guide seat and the lower part of the mini switch, and the opening of the locking sleeve is contracted and locked; the mini switch pin is connected with the counter through a lead, and the power switch is connected with the counter.
Preferably, the center of the base accommodating groove is upwards provided with a positioning column, the first air hole is arranged in the center of the positioning column and extends downwards to be communicated with the air inlet hole, and the positioning column penetrates through the second air hole of the air guide seat.
Preferably, the mini switch comprises a U-shaped shell, a top cover and a pin, wherein a static spring piece and a movable spring piece are arranged in the U-shaped shell, the static spring piece and the movable spring piece extend out of the U-shaped shell to form two pins, the top cover is arranged at an opening below the U-shaped shell, a second groove is formed in the bottom surface of the top cover, the outer ring of the top cover compresses the circumferential edge of the spring piece, the pin penetrates through the center of the top cover, the upper end of the pin is in contact with the movable spring piece, and the lower end of the pin is in contact with the spring piece.
Preferably, the detection device further comprises a control box, the counter is arranged in the control box, a plurality of indicator lamps are arranged on the control box, the indicator lamps correspond to the counter one by one, and the indicator lamps are respectively connected with the counter and the power switch.
Compared with the prior art, the invention has the beneficial effects that: this mini switch multistation fatigue life check out test set integrates a base with a plurality of mini switch determine module on, through automated control, can realize the fatigue life detection of a plurality of mini switches, can alleviate operating personnel working strength for detection efficiency.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the gas supply system.
Fig. 3 is a schematic structural diagram of the base.
FIG. 4 is an exploded view of the mini switch detection module.
FIG. 5 is a schematic cross-sectional view of a mini switch detection module.
In the figure: 1. a box body; 2. a base; 3. a mini-switch detection component; 4. a timer; 5. a power switch; 6. an indicator light; 7. a control box; 11. a touch display screen; 21. a containing groove; 22. a positioning column; 23. a first air hole; 24. an air inlet; 31. a gas guide seat; 32. a mini switch; 33. a locking sleeve; 34. a spring plate; 311. a second air hole; 312. a first groove; 331. a through hole; 321. a U-shaped housing; 322. a top cover; 323. a pin; 324. a static spring leaf; 325. a movable spring plate; 326. and (7) a pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described below with reference to specific embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The mini switch multi-station fatigue life detection equipment comprises an air supply system, a base 2, mini switch detection assemblies 3, a timer 4 and a power switch 5, wherein the air supply system provides an air path which can rise and fall circularly in a set pressure range, so that the mini switch detection assemblies are driven to periodically complete on and off states, and counting is further realized. A plurality of accommodating grooves 21 are formed in the base 2 at intervals, a first air hole 23 is formed in the center of each accommodating groove 21 downwards, a plurality of air inlets 24 are formed in the side wall of the base at intervals, the air inlets 24 are communicated with the first air holes 23, one air inlet 24 corresponds to one first air hole 23, 2 rows of accommodating grooves are arranged in parallel in order to facilitate the communication arrangement of the air inlets and the first air holes, and the air inlets are formed in the left side wall and the right side wall of the base and are communicated with the accommodating grooves; the air inlet is connected with an air supply system through an air pipe, and air is introduced into the mini switch detection assembly through the first air hole; the mini switch detection assemblies are detachably arranged in the containing grooves, correspond to the counters one to one and are electrically connected, and the power switch is electrically connected with the counters.
Specifically, the mini switch detection assembly 3 comprises an air guide seat 31, a mini switch 32 and a locking sleeve 33, wherein the air guide seat 31 is in threaded connection with the inside of the containing groove, a second air hole 311 corresponding to the first air hole is formed in the center of the air guide seat 31, a first groove 312 is formed in the concave part of the top of the air guide seat 31, and an elastic sheet 34 is movably arranged in the first groove and used for sealing the mini switch to simulate an air path in a working state of the mini switch, so that the test is facilitated; the mini switch 32 is arranged in the first groove of the air guide seat and tightly presses the circumferential edge of the elastic sheet, and the pin of the mini switch is upward; the locking sleeve 33 is sleeved on the upper part of the outer side of the air guide seat and the lower part of the mini switch, and the opening of the locking sleeve is contracted and locked; the mini switch pin is connected with the counter through a wire, specifically, a plug bush or a socket which is electrically connected with the mini switch pin can be sleeved on the pin, the plug bush or the socket is connected with the counter through a wire, and the power switch is connected with the counter.
In addition, in order to facilitate the fixing of the air guide seat and the correspondence between the first air hole and the second air hole, a positioning column 22 is arranged in the center of the base accommodating groove in an upward protruding mode, the first air hole 23 is arranged in the center of the positioning column and extends downwards to be communicated with the air inlet hole, the air guide seat is placed in the accommodating cavity, and the positioning column can just penetrate into the second air hole of the air guide seat.
Because the structure of this mini switch is the mature structure of current product, the structure of air guide seat 31 is that adaptation base, mini switch casing and top cap design for air guide seat is whole to be the protruding type structure of falling, sets up the nut that makes things convenient for the centre gripping in its tip end outside near the stub end simultaneously. The locking sleeve 33 is of a barrel structure, a through hole 331 is formed in the center of the bottom of the locking sleeve, the locking sleeve is conveniently sleeved from the lower end of the air guide seat and upwards sleeved on the upper portion of the outer side of the air guide seat and the lower portion of the mini switch, a round-nose pliers can be used for contracting an opening at the upper portion of the locking sleeve, the whole locking sleeve is fixedly locked, and the stability and the sealing performance of the air guide seat and the mini switch are guaranteed by the locking sleeve.
The mini switch 32 is of a switch structure and comprises a U-shaped shell 321, a top cover 322 and a pin 323, wherein a static spring piece 324 and a movable spring piece 325 are arranged in the U-shaped shell, the static spring piece 324 and the movable spring piece 325 extend out of the U-shaped shell to form two pins 326, the top cover 322 is arranged at an opening below the U-shaped shell, a second groove is arranged on the bottom surface of the top cover, the outer ring of the top cover compresses the circumferential edge of the spring piece, the pin 323 penetrates through the center of the top cover, the upper end of the pin is in contact with the movable spring piece, and the lower end of the pin 323 is in contact with the spring piece. The static spring leaf and the movable spring leaf in the mini switch are in contact, so that the mini switch is in a normally closed state.
Because counter and mini switch detection component one-to-one set up, for the convenience of arranging, arrange counter 3 in control box 7 in unison to still be provided with a plurality of pilot lamps 6 in the control box, this pilot lamp and counter one-to-one, and the pilot lamp is connected with counter and switch respectively. When the mini switch is turned off, the indicator lamp is turned on, and when the mini switch is turned on, the counter counts once when the mini switch is turned on.
The working principle of the mini switch detection assembly is as follows: the power switch is turned on, the counter is turned on but does not count, the indicator light is in a lighting state, gas enters from the air inlet hole of the base and flows into the second air hole of the air guide seat through the first air hole, the air pressure rises to a certain value due to the fact that the elastic sheet is arranged between the air guide seat and the mini switch, the elastic sheet sinks upwards to push the pin to push the movable spring leaf upwards and open the movable spring leaf, the circuit is disconnected, at the moment, the counter controls the indicator light to be turned off but does not count, the gas pressure begins to drop after rising to the certain value, the elastic sheet sinks to the certain value, the pin moves downwards to enable the movable spring leaf to be contacted, at the moment, the circuit is connected, the counter counts once, and meanwhile, the indicator light is controlled to be turned on, and a test is completed; then the gas pressure continuously rises to make the elastic sheet dent downwards, thereby pushing the pin to push the movable elastic sheet upwards and open the movable elastic sheet, so that the circuit is disconnected, the indicator light is extinguished, the counter does not count, the gas pressure begins to descend after rising to a certain value, the elastic sheet dent begins to recover and descends to a certain value, the pin moves downwards to make the movable elastic sheet contact with the static elastic sheet, at the moment, the circuit is connected, the counter counts once, and simultaneously the indicator light is controlled to light, and a test is completed; then the air pressure continues to rise and then fall, the working process is continued to be carried out circularly, and when the numerical value displayed by the counter is not changed, the maximum action times of the mini switch is obtained, so that the test detection of the fatigue life of the mini switch is realized.
Here, the air supply system provides one can be in the ascending gas circuit that just descends of pressure range circulation of settlement to drive a plurality of mini switch detecting element and accomplish the on-off two kinds of states periodically, and then realize the count. In this embodiment, the gas supply system comprises a pressure reducing valve, a throttle valve, an electromagnetic valve, a pressure sensor, a needle valve and a controller, wherein a gas source sequentially passes through the pressure reducing valve, the throttle valve and the electromagnetic valve through a gas pipe, and is divided into two paths through a tee joint to an outlet of the electromagnetic valve, and each path is respectively connected with a gas inlet on the side wall of the base through a plurality of tee joints; the pressure sensor is arranged between the outlet of the electromagnetic valve and the tee joint, the air release pipe is arranged between the pressure sensor and the air path of the electromagnetic valve, the needle valve is arranged on the air release pipe, the motor for controlling the on-off of the needle valve is connected to the needle valve, and the electromagnetic valve, the pressure sensor and the motor are respectively connected with the controller. Setting a highest pressure value and a lowest pressure value by a controller, wherein the highest pressure value is equal to or slightly larger than the maximum depression pressure value of a mini switch elastic sheet, the lowest pressure value is equal to or slightly smaller than the depression recovery value of the mini switch elastic sheet, each elastic sheet can reach the depression critical value and the recovery critical value, gas enters the mini switch assembly through a base air inlet and is in a rising state, meanwhile, a pressure sensor transmits the detected pressure value to the controller in real time, when the pressure value is close to or slightly smaller than the highest pressure value, the elastic sheet in the mini switch assembly is depressed upwards to disconnect a circuit, meanwhile, after the controller detects that the pressure value reaches the highest pressure value, the motor is controlled to open a needle valve to release the pressure, so that the pressure in the mini switch assembly is also in a falling state, the depression of the elastic sheet starts to recover to connect the circuit, and then after the controller detects that the pressure value reaches the lowest pressure value, the motor is controlled to close the needle valve, so that the entering air pressure continues to rise, and the next group of circulation is carried out.
In this embodiment, the air supply system is arranged in a box body 1, a touch display screen 11, a switch knob and a start knob are arranged on the front side of the box body, the start knob and the touch display screen are connected with the controller, the highest pressure value and the lowest pressure value are set through the touch display screen, and the air supply system is started to work through the start knob.
The working principle of the invention is as follows: the power switch is turned on, the counter is turned on but does not count, the indicator lamp is in a lighting state, meanwhile, the maximum pressure value and the minimum pressure value are set through the controller, the electromagnetic valve is turned on, gas enters the mini switch assembly, and the gas pressure is in a rising state; pressure sensor gives the controller with the pressure value that detects in real time, be close or when reaching the maximum pressure value, the interior shell fragment of mini switch module is upwards sunken, make the circuit disconnection, at this moment, the counter does not count, but control pilot lamp extinguishes, the controller detects the pressure value and reaches after the maximum pressure value simultaneously, can control the motor and open the needle type valve and carry out the pressure release, make mini switch module internal pressure also be in the decline state, the shell fragment is sunken to begin to recover, make the circuit switch-on, the counter counts once this moment, and control pilot lamp lights, then the controller detects the pressure value and reaches after the minimum pressure value, can control the motor and close the needle type valve, make entering atmospheric pressure continue to rise, carry out next group's circulation.
Claims (6)
1. The utility model provides a mini switch multistation fatigue life check out test set which characterized in that: the air supply device comprises an air supply system, a base, a mini switch detection assembly, a timer and a power switch, wherein a plurality of accommodating grooves are formed in the base at intervals, a first air hole is formed in the center of each accommodating groove in a downward direction, a plurality of air inlets are formed in the side wall of the base at intervals, the air inlets are in one-to-one correspondence with the first air holes and communicated with the first air holes, and the air inlets are connected with the air supply system through air pipes; the mini switch detection assembly is detachably arranged in the containing groove and connected with the counter, and the power switch is connected with the counter.
2. The mini switch multi-station fatigue life detection device according to claim 1, wherein: the gas supply system comprises a pressure reducing valve, a throttle valve, an electromagnetic valve, a pressure sensor, a needle valve and a controller, wherein a gas source sequentially passes through the pressure reducing valve, the throttle valve and the electromagnetic valve through a gas pipe, the gas source is divided into two paths to an outlet of the electromagnetic valve through a tee joint, and each path is respectively connected with a gas inlet on the side wall of the base through a plurality of tee joints; the pressure sensor is arranged between the outlet of the electromagnetic valve and the tee joint, the air release pipe is arranged between the pressure sensor and the air path of the electromagnetic valve, the needle valve is arranged on the air release pipe, the motor for controlling the on-off of the needle valve is connected to the needle valve, and the electromagnetic valve, the pressure sensor and the motor are respectively connected with the controller.
3. The mini switch multi-station fatigue life detection device according to claim 1, wherein: the mini switch detection assembly comprises an air guide seat, a mini switch and a locking sleeve, the air guide seat is in threaded connection in the accommodating groove, a second air hole corresponding to the first air hole is formed in the center of the air guide seat, a first groove is formed in the concave part of the top of the air guide seat, and an elastic sheet is movably arranged in the first groove; the mini switch is arranged in the first groove of the air guide seat and tightly presses the circumferential edge of the elastic sheet, and the pin of the mini switch is upward; the locking sleeve is sleeved on the upper part of the outer side of the air guide seat and the lower part of the mini switch, and the opening of the locking sleeve is contracted and locked; the mini switch pin is connected with the counter through a lead, and the power switch is connected with the counter.
4. The mini switch multi-station fatigue life detection device according to claim 3, wherein: the center of the base accommodating groove is upwards provided with a positioning column, the first air hole is arranged in the center of the positioning column and extends downwards to be communicated with the air inlet hole, and the positioning column penetrates through the second air hole of the air guide seat.
5. The mini switch multi-station fatigue life detection device according to claim 3, wherein: the mini switch comprises a U-shaped shell, a top cover and a pin, wherein a static spring piece and a movable spring piece are arranged in the U-shaped shell, the static spring piece and the movable spring piece extend out of the U-shaped shell to form two pins, the top cover is arranged at an opening below the U-shaped shell, a second groove is formed in the bottom surface of the top cover, the outer ring of the top cover compresses the circumferential edge of the spring piece, the pin penetrates through the center of the top cover, the upper end of the pin is in contact with the movable spring piece, and the lower end of the pin is in contact with the spring piece.
6. The mini switch multi-station fatigue life detection device according to claim 1, wherein: the detection equipment further comprises a control box, the counter is arranged in the control box, a plurality of indicating lamps are arranged on the control box, the indicating lamps correspond to the counter one to one, and the indicating lamps are connected with the counter and the power switch respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210496578.5A CN114814567A (en) | 2022-05-09 | 2022-05-09 | Mini switch multistation fatigue life check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210496578.5A CN114814567A (en) | 2022-05-09 | 2022-05-09 | Mini switch multistation fatigue life check out test set |
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| Publication Number | Publication Date |
|---|---|
| CN114814567A true CN114814567A (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210496578.5A Pending CN114814567A (en) | 2022-05-09 | 2022-05-09 | Mini switch multistation fatigue life check out test set |
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| CN (1) | CN114814567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628780A (en) * | 2022-10-13 | 2023-01-20 | 河南省保时安电子科技有限公司 | Multifunctional detection equipment of miniature air pump for gas detector |
-
2022
- 2022-05-09 CN CN202210496578.5A patent/CN114814567A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628780A (en) * | 2022-10-13 | 2023-01-20 | 河南省保时安电子科技有限公司 | Multifunctional detection equipment of miniature air pump for gas detector |
| CN115628780B (en) * | 2022-10-13 | 2023-03-21 | 河南省保时安电子科技有限公司 | Multifunctional detection equipment of miniature air pump for gas detector |
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