CN110849405B - Portable proximity switch test equipment - Google Patents
Portable proximity switch test equipment Download PDFInfo
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- CN110849405B CN110849405B CN201911145006.7A CN201911145006A CN110849405B CN 110849405 B CN110849405 B CN 110849405B CN 201911145006 A CN201911145006 A CN 201911145006A CN 110849405 B CN110849405 B CN 110849405B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The invention relates to electronic product detection, in particular to portable proximity switch testing equipment. The invention provides portable proximity switch testing equipment which is high in detection speed and convenient to carry and enter a factory workshop. A portable proximity switch test device comprises an installation shell, a lifting handle, a connecting box and the like; and a handle is arranged on the lower side of the mounting shell. According to the invention, the device can be held by the handle to enter a factory workshop, so that the time waste caused by sending a sample into a laboratory for detection can be avoided, and the effect is more obvious if the sample amount is large; by adopting the mode of placing the proximity switch into the socket and detecting through different metal sheets, the detection result has contrast.
Description
Technical Field
The invention relates to electronic product detection, in particular to portable proximity switch testing equipment.
Background
The proximity switch is a position switch which can be operated without mechanical direct contact with a moving part, and when the sensing surface of the object proximity switch reaches an action distance, the switch can be actuated without mechanical contact and any pressure applied, so that a direct current electric appliance is driven or a control instruction is provided for a computer (plc) device. The approach switch is a switch type sensor (i.e. a non-contact switch), which has the characteristics of a travel switch and a microswitch, and has the characteristics of sensing performance, reliable action, stable performance, fast frequency response, long service life, strong anti-interference capability and the like, and has the characteristics of water resistance, shock resistance, corrosion resistance and the like. The product has inductance type, capacitance type, Hall type, AC type and DC type.
When the quality of the access switch is detected, most of the access switch is taken out from a production factory and sent to a laboratory for detection, but the access switch has the defects that much time and labor are needed, the detection process in the laboratory is slow, and the subsequent production efficiency is influenced.
In summary, in order to overcome the above-mentioned disadvantages of the existing proximity switch detection, a portable proximity switch testing device is designed, which can be used for rapid detection and is convenient to carry and enter a factory workshop.
Disclosure of Invention
In order to overcome the defects that the prior proximity switch detection mode needs a lot of time to send a sample into a laboratory for detection, the time and the labor are wasted, the detection speed is slow, and the subsequent production efficiency is influenced, the technical problems of the invention are as follows: the portable proximity switch testing equipment is high in detection speed and convenient to carry and enter a factory workshop.
The technical implementation scheme of the invention is as follows: a portable proximity switch test device comprises an installation shell, a handle, a connecting box, a first bearing seat, a first rotating rod, an installation rod, a conversion device containing metal for detection and a socket, a handle is arranged at the lower side of the installation shell, a first empty groove is arranged at the right part of the installation shell, side holes are arranged at the front side and the rear side of the right part of the installation shell, the side hole is communicated with the first empty groove, the front side and the rear side of the left part of the installation shell are both connected with a connecting box, the positions of the mounting shells in the connecting box are all connected with first bearing blocks, the first bearing blocks are all connected with first rotating rods, the right side of the connecting box is provided with a through hole, the first rotating rods are connected with mounting rods, the mounting rods extend out of the through hole, a conversion device is arranged between the mounting rods, a mounting groove is formed in the left part of the mounting shell, and a socket is placed in the mounting groove; when the proximity switch is rapidly detected, the installation rod can be rotated anticlockwise, the installation rod rotates through the through hole, the installation rod drives the conversion device to rotate anticlockwise, so that the conversion device is screwed out of the first empty groove and the side hole, the conversion device is located above the installation groove, the proximity switch can be placed in the socket at the moment, a power supply of the socket is started to supply power to the proximity switch, and the proximity switch can be detected through the conversion device at the moment; and after the detection is finished, the proximity switch is taken out, and the mounting rod drives the conversion device to rotate back to the first empty groove.
Optionally, the device supplies power and transmits data through an external data line and a power line, the external data line is connected to an external computer for data storage, the external data line is arranged on the left side of the mounting shell through an external wiring pipe, and the socket is connected with the external data line and the power line through a circuit.
Optionally, the socket supplies power and transmits data to the proximity switch, and the socket pin hole is matched with the proximity switch.
Optionally, the conversion device comprises a fixing rod, a second bearing seat, a rotating ring, a connecting block, a metal sheet and a rotating handle, the fixing rod is connected between the mounting rods, the second bearing seat is arranged in the middle of the fixing rod, the rotating ring is arranged outside the second bearing seat, the connecting block is arranged around the outer side of the rotating ring, the metal sheet is connected outside the connecting block, and a plurality of groups of rotating handles are arranged outside the rotating ring; when the proximity switch is detected, the rotating ring can be rotated through the rotating handle, and the rotating ring drives the connecting block and the metal sheet to rotate so as to detect the electronic reaction of the proximity switch to the metal sheet.
Optionally, the metal sheet is a plurality of groups of metals made of different materials, such as iron, copper, aluminum and tin.
Optionally, the proximity switch further comprises a follow-up device which can enable the proximity switch to be linked with the conversion device, the follow-up device comprises a mounting ring, a slide rail, a slide block, an elastic part, a pawl, a first rotating shaft, a ratchet wheel, a first gear, a third bearing seat, a second rotating rod, a second gear, a first belt pulley, a toothed belt, a guide rail, a guide sleeve, a moving rod, a second rotating shaft, a second belt pulley, a fourth bearing seat, a flat belt, a third rotating rod and a third gear, the follow-up device is arranged on the rear mounting rod, connected with the conversion device and connected with the socket, the mounting ring is connected to the inner right side of the rotating ring, a plurality of groups of slide rails are arranged on the inner circumference of the mounting ring, the slide rails are all connected with the slide block in a sliding manner, the elastic part is connected between the slide block and the slide rail, the pawl is connected on the slide block, the inner wall of the fixed rod is provided with the first rotating shaft, the ratchet wheel is connected to the first rotating shaft and matched with the pawl, the first rotating shaft is connected with a first gear, a second hollow groove is formed in the fixed rod, a third bearing seat is arranged in the fixed rod, a second rotating rod is connected in the third bearing seat, a second gear is connected to the front side of the second rotating rod and meshed with the first gear, a third hollow groove is formed in the rear side mounting rod, first belt pulleys are connected to the rear side of the second rotating rod and the inner wall of the third hollow groove in the rear side mounting rod respectively, a toothed belt is connected between the first belt pulleys, a guide rail is arranged on the lower side in the mounting groove of the mounting shell, a guide sleeve is connected to the guide rail in a sliding manner, a moving rod is arranged on the front side of the guide sleeve, the front side of the moving rod is connected to the socket, and a second rotating shaft is arranged on the rear wall of the mounting groove of the mounting shell, a fourth bearing seat is arranged above the rear side wall of the mounting shell, a third rotating rod is connected in the fourth bearing seat, the front side of the third rotating rod and the front side of the second rotating shaft are both connected with second belt pulleys, a flat belt is connected between the second belt pulleys, the right side of the flat belt is connected with the guide sleeve, the rear side of the third rotating rod is connected with a third gear, and the third gear is meshed with a toothed belt; when the rotating ring is rotated, if the rotating ring is rotated counterclockwise, the rotating ring will drive the mounting ring to rotate counterclockwise, so as to drive the slide rail to rotate counterclockwise, so as to drive the pawl to rotate counterclockwise, so that the pawl drives the ratchet to rotate counterclockwise, the ratchet drives the first gear to rotate counterclockwise, the first gear drives the second gear to rotate clockwise, the second gear drives the second rotating rod to rotate clockwise, the second rotating rod drives the first belt pulley and the toothed belt to rotate clockwise, the toothed belt drives the third gear to rotate counterclockwise, the third gear drives the third rotating rod, the second belt pulley and the flat belt to rotate counterclockwise, the flat belt will drive the guide sleeve to move upward, and the guide sleeve drives the socket and the proximity switch to move upward through the moving rod, thereby enabling the proximity switch to test the electronic reaction generated by the metal sheet at different distances; if the rotating ring is rotated clockwise, the pawl is compressed through the slide rail, the slide block and the elastic piece, so that the pawl cannot drive the ratchet wheel to rotate, and tests on different metal sheets at equal intervals can be performed.
Optionally, the resilient member is a spring.
Optionally, there is a friction between the guide rail and the guide sleeve, which can prevent the guide sleeve from moving downward when not under force.
Optionally, the number of the metal sheets is multiple, and the rotating handle and the connecting block are respectively corresponding to the number of the groups.
The invention has the following advantages: according to the invention, the device can be held by the handle to enter a factory workshop, so that the time waste caused by sending a sample into a laboratory for detection can be avoided, and the effect is more obvious if the sample amount is large; by adopting the mode of placing the proximity switch into the socket and detecting through different metal sheets, the detection result has contrast.
Drawings
Fig. 1 is a front view of a first state of motion of the present invention.
Fig. 2 is a front view of a second state of motion of the present invention.
Fig. 3 is a left side view of the present invention.
Fig. 4 is a partial enlarged left side view of the present invention.
Fig. 5 is a front view of the rotating ring of the present invention.
Fig. 6 is a partially enlarged front view of the present invention.
Fig. 7 is a partial enlarged left side view of the present invention.
Fig. 8 is a partially enlarged front view of the present invention.
In the above drawings: 1: mounting a housing, 2: handle, 3: first empty groove, 4: side hole, 5: connecting box, 6: first bearing seat, 7: first rotating rod, 8: through hole, 9: mounting rod, 10: conversion device, 11: mounting groove, 12: socket, 100: fixing rod, 101: second bearing housing, 102: rotating ring, 103: connecting block, 104: metal sheet, 105: turning handle, 30: follower device, 301: mounting ring, 302: slide rail, 303: a slider, 304: elastic member, 305: pawl, 306: first rotating shaft, 307: ratchet, 308: first gear, 309: second empty slot, 3010: third bearing block, 3011: second rotary bar, 3012: second gear, 3013: third empty slot, 3014: first pulley, 3015: toothed belt, 3016: guide rail, 3017: guide sleeve, 3018: travel bar, 3019: second rotating shaft, 3020: second pulley, 3021: fourth bearing seat, 3022: flat belt, 3023: third rotating rod, 3024: a third gear.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
A portable proximity switch test device, as shown in fig. 1-3, includes an installation casing 1, a handle 2, a connection box 5, a first bearing seat 6, a first rotating rod 7, an installation rod 9, a conversion device 10 containing metal for detection, and a socket 12, and specifically includes:
1 downside of installation casing is equipped with handle 2, 1 right part of installation casing is opened there is first dead slot 3, side opening 4 has all been opened to the side around 1 right part of installation casing, side opening 4 with 3 intercommunications of first dead slot, the side all is connected with connecting box 5 around 1 left part of installation casing, installation casing 1 is located position in the connecting box 5 all is connected with primary shaft bearing 6, all be connected with first bull stick 7 in the primary shaft bearing 6, open on 5 right sides of connecting box has through-hole 8, all be connected with installation pole 9 on the first bull stick 7, installation pole 9 stretches out through-hole 8, be equipped with conversion equipment 10 between installation pole 9, 1 left part of installation casing is opened there is mounting groove 11, socket 12 has been placed in the mounting groove 11.
In specific operation of the embodiment, when a proximity switch is rapidly detected, a user can hold the handle 2 of the device by hand to bring the device to a proximity switch production workshop, place the device on a plane, switch on a power supply and a data terminal, at this time, the mounting rod 9 can be rotated counterclockwise, the mounting rod 9 rotates through the through hole 8, the mounting rod 9 drives the conversion device 10 to rotate counterclockwise, so that the conversion device 10 is screwed out of the first empty slot 3 and the side hole 4, the conversion device 10 is positioned above the mounting slot 11, at this time, the proximity switch can be placed in the socket 12, the power supply of the socket 12 is started to supply power to the proximity switch, at this time, the proximity switch can be detected through the conversion device 10, and detected data are output to the terminal; after the detection is finished, the proximity switch is taken out, and the mounting rod 9 drives the conversion device 10 to rotate back into the first empty groove 3, or other proximity switch samples can be detected.
Further, the device supplies power and transmits data through an external data line and a power line, the external data line is connected to an external computer for data storage, the external data line is arranged on the left side of the mounting shell 1 through an external wiring pipe, and the socket 12 is connected with the external data line and the power line through a circuit.
Further, the socket 12 supplies power and transmits data to the proximity switch, the pin holes of the socket 12 are matched with the proximity switch, and if different types of proximity switches are detected, the socket 12 with different pin holes may be replaced.
Example 2
On the basis of embodiment 1, as shown in fig. 2 to 3, the switching device 10 includes a fixing rod 100, a second bearing seat 101, a rotating ring 102, a connecting block 103, a metal sheet 104 and a rotating handle 105, the fixing rod 100 is connected between the mounting rods 9, the second bearing seat 101 is arranged in the middle of the fixing rod 100, and specifically:
a rotating ring 102 is arranged outside the second bearing seat 101, a connecting block 103 is arranged around the outer side of the rotating ring 102, a metal sheet 104 is connected to the outer side of the connecting block 103, and a plurality of groups of rotating handles 105 are arranged outside the rotating ring 102.
In the above embodiment, in a specific operation, when the proximity switch is detected, the rotating ring 102 can be rotated by the rotating handle 105, and the rotating ring 102 will drive the connecting block 103 and the metal sheet 104 to rotate, so as to detect an electronic reaction of the proximity switch to the metal sheet 104.
Further, the metal sheet 104 is a combination of a plurality of groups of metals of different materials, such as iron, copper, aluminum and tin, so that different metal sheets can be detected for the same proximity switch, and whether the proximity switch can make correct response to different metal sheets can be detected.
Example 3
In addition to embodiment 2, as shown in fig. 4 to 8, a follower 30 capable of linking the proximity switch with the switch device 10 is further included, the follower 30 includes a mounting ring 301, a sliding rail 302, a slider 303, an elastic member 304, a pawl 305, a first rotating shaft 306, a ratchet 307, a first gear 308, a third bearing seat 3010, a second rotating rod 3011, a second gear 3012, a first pulley 3014, a toothed belt 3015, a guide track 3016, a guide sleeve 3017, a moving rod 3018, a second rotating shaft 3019, a second pulley 3020, a fourth bearing seat 3021, a flat belt 3022, a third rotating rod 3023, and a third gear 3024, and specifically:
the follow-up device 30 is arranged on a rear mounting rod 9, connected with the conversion device 10, and connected with the socket 12, the right side in the rotating ring 102 is connected with a mounting ring 301, the inner circumference of the mounting ring 301 is provided with a plurality of sets of sliding rails 302, the sliding rails 302 are all connected with sliding blocks 303 in a sliding manner, the sliding blocks 303 and the sliding rails 302 are all connected with elastic members 304, the sliding blocks 303 are all connected with pawls 305, the inner wall of the fixing rod 100 is provided with a first rotating shaft 306, the first rotating shaft 306 is connected with a ratchet 307, the ratchet 307 is matched with the pawls 305, the first rotating shaft 306 is connected with a first gear 308, the fixing rod 100 is internally provided with a second empty slot 309, the fixing rod 100 is internally provided with a third bearing block 3010, the third bearing block 3010 is connected with a second rotating rod 3011, the front side of the second rotating rod 3011 is connected with a second gear 3012, the second gear 3012 is engaged with the first gear 308, a third empty slot 3013 is formed in the rear mounting rod 9, first belt pulleys 3014 are connected to inner walls of the third empty slot 3013 in the second rotary rod 3011 and the rear mounting rod 9, a toothed belt 3015 is connected between the first belt pulleys 3014, a guide rail 3016 is arranged on the lower side in the mounting slot 11 of the mounting shell 1, the guide rail 3016 is connected with a guide sleeve 3017 in a sliding manner, a moving rod 3018 is arranged on the front side of the guide sleeve 3017, the front side of the moving rod 3018 is connected to the socket 12, a second rotary shaft 3019 is arranged on the rear wall of the mounting slot 11 of the mounting shell 1, a fourth bearing 3021 is arranged above the rear side wall of the mounting shell 1, a third rotary rod 3023 is connected to the fourth bearing 3021 in a first rotary rod 3023, second belt pulleys 3020 are connected to the front sides of the third rotary rod 3013 and the second rotary shaft 3019, a flat belt 3022 is connected between the second belt 3020, the right side of the flat belt 3022 is connected to the guide sleeve 3017, a third gear 3024 is connected to the rear side of the third rotary rod 3023, and the third gear 3024 is engaged with the toothed belt 3015.
In specific operation, when the rotary ring 102 is rotated, if the rotary ring 102 is rotated counterclockwise, the rotary ring 102 will drive the mounting ring 301 to rotate counterclockwise, thereby driving the slide rail 302 to rotate counterclockwise, thereby driving the pawl 305 to rotate counterclockwise, thereby causing the pawl 305 to drive the ratchet wheel 307 to rotate counterclockwise, the ratchet wheel 307 will drive the first gear 308 to rotate counterclockwise, the first gear 308 will drive the second gear 3012 to rotate clockwise, the second gear 3012 will drive the second rotary rod 3011 to rotate clockwise, the second rotary rod 3011 will drive the first belt pulley 3014 and the toothed belt 3015 to rotate clockwise, the toothed belt 3015 will drive the third gear 3024 to rotate counterclockwise, the third gear 3024 will drive the third rotary rod 3023, the second belt 3020 and the flat belt 3022 to rotate clockwise, the flat belt 3022 will drive the guide sleeve 3017 to move upward, the guide sleeve 3017 drives the socket 12 and the proximity switch to move upward through a moving rod 3018, so that the proximity switch can test the electronic reaction generated by the metal sheet 104 at different distances, and each group of the pawls 305 will drive the proximity switch to lift upward for a certain distance when passing through the ratchet wheel 307; if the rotating ring 102 is rotated clockwise, the pawls 305 will be compressed by the slide rails 302, the sliding blocks 303 and the elastic members 304, so that the pawls 305 will not rotate the ratchet wheel 307, thereby allowing testing of different metal sheets 104 with equal distance.
Further, the elastic member 304 is a spring.
Further, there is a friction between the guide track 3016 and the guide sleeve 3017, which can prevent the guide sleeve 3017 from moving downward when not under force.
To explain further, if the number of the metal sheets 104 is multiple, the rotating handle 105 and the connecting block 103 are both corresponding to the number of the groups.
While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.
Claims (6)
1. The utility model provides a portable proximity switch test equipment, including installation casing (1), handle (2) and connecting box (5), installation casing (1) downside is equipped with handle (2), installation casing (1) right part is opened there is first dead slot (3), side opening (4) have all been opened to the side around installation casing (1) right part, side opening (4) with first dead slot (3) intercommunication, the side all is connected with connecting box (5), characterized by around installation casing (1) left part: the device is characterized by further comprising a first bearing seat (6), a first rotating rod (7), mounting rods (9), a conversion device (10) containing metal for detection and a socket (12), wherein the first bearing seat (6) is connected to the position, located in the connecting box (5), of the mounting shell (1), the first rotating rod (7) is connected to the first bearing seat (6), a through hole (8) is formed in the right side of the connecting box (5), the mounting rods (9) are connected to the first rotating rod (7), the mounting rods (9) extend out of the through hole (8), the conversion device (10) is arranged between the mounting rods (9), a mounting groove (11) is formed in the left part of the mounting shell (1), and the socket (12) is placed in the mounting groove (11); when the proximity switch is rapidly detected, a user holds the handle (2) of the equipment to bring the equipment to a proximity switch production workshop, places the equipment on a plane, switches on a power supply and a data terminal, rotates the installation rod (9) anticlockwise, the installation rod (9) rotates through the through hole (8), the installation rod (9) drives the conversion device (10) to rotate anticlockwise, so that the conversion device (10) is screwed out of the first empty groove (3) and the side hole (4), the conversion device (10) is positioned above the installation groove (11), the proximity switch is placed in the socket (12), the power supply of the socket (12) is started to supply power for the proximity switch, the proximity switch is detected through the conversion device (10), and detected data are output outwards to the terminal, after the detection is finished, the proximity switch is taken out, and the mounting rod (9) drives the conversion device (10) to rotate back into the first empty groove (3), or other proximity switch samples are detected; the device carries out power supply and data transmission through an external data line and a power line, the external data line is connected to an external computer for data storage, the external data line is arranged on the left side of the mounting shell (1) through an external wiring pipe, and the socket (12) is connected with the external data line and the power line through a circuit; the conversion device (10) comprises fixing rods (100), second bearing blocks (101), a rotating ring (102), connecting blocks (103), metal sheets (104) and rotating handles (105), the fixing rods (100) are connected between the mounting rods (9), the second bearing blocks (101) are arranged in the middle of the fixing rods (100), the rotating ring (102) is arranged on the outer side of the second bearing blocks (101), the connecting blocks (103) are arranged on the periphery of the outer side of the rotating ring (102), the metal sheets (104) are connected to the outer side of the connecting blocks (103), and a plurality of groups of rotating handles (105) are arranged on the outer side of the rotating ring (102).
2. A portable proximity switch testing apparatus as defined in claim 1, wherein: the metal sheets (104) are a plurality of groups of metals with different materials.
3. A portable proximity switch testing apparatus as defined in claim 2, wherein: the follow-up device (30) capable of enabling the proximity switch to be linked with the conversion device (10) is further included, the follow-up device (30) comprises a mounting ring (301), a sliding rail (302), a sliding block (303), an elastic piece (304), a pawl (305), a first rotating shaft (306), a ratchet wheel (307), a first gear (308), a third bearing seat (3010), a second rotating rod (3011), a second gear (3012), a first belt pulley (3014), a toothed belt (3015), a guide rail (3016), a guide sleeve (3017), a moving rod (3018), a second rotating shaft (3019), a second belt pulley (3020), a fourth bearing seat (3021), a flat belt (3022), a third rotating rod (3023) and a third gear (3024), the follow-up device (30) is arranged on a rear side mounting rod (9), connected with the conversion device (10) and connected with the socket (12), and the mounting ring (301) is connected with the right side in the rotary ring (102), the inner periphery of the mounting ring (301) is provided with a plurality of groups of sliding rails (302), the sliding rails (302) are internally and slidably connected with sliding blocks (303), the sliding blocks (303) and the sliding rails (302) are respectively connected with elastic pieces (304), the sliding blocks (303) are respectively connected with pawls (305), the inner wall of the fixing rod (100) is provided with a first rotating shaft (306), the first rotating shaft (306) is connected with a ratchet wheel (307), the ratchet wheel (307) is matched with the pawls (305), the first rotating shaft (306) is connected with a first gear (308), the fixing rod (100) is internally provided with a second empty groove (309), the fixing rod (100) is internally provided with a third bearing seat (3010), the third bearing seat (3010) is internally connected with a second rotating rod (3011), the front side of the second rotating rod (3011) is connected with a second gear (3012), and the second gear (3012) is meshed with the first gear (308), a third empty groove (3013) is formed in the rear side mounting rod (9), first belt pulleys (3014) are connected to the inner walls of the third empty groove (3013) in the second rotary rod (3011) and the rear side mounting rod (9), a toothed belt (3015) is connected between the first belt pulleys (3014), a guide rail (3016) is arranged on the lower side in a mounting groove (11) of the mounting shell (1), a guide sleeve (3017) is connected to the guide rail (3016) in a sliding manner, a moving rod (3018) is arranged on the front side of the guide sleeve (3017), the moving rod (3018) is connected to the socket (12) on the front side, a second rotary shaft (3019) is arranged on the rear wall of the mounting groove (11) of the mounting shell (1), a fourth bearing seat (3021) is arranged above the rear side wall of the mounting shell (1), a third rotary rod (3023) is connected to the front side of the third rotary rod (3023) and a second rotary shaft (3019) and a second belt pulley (3020) is connected to the front side of the fourth bearing (3019), a flat belt (3022) is connected between the second belt wheels (3020), the right side of the flat belt (3022) is connected with the guide sleeve (3017), a third gear (3024) is connected to the rear side of the third rotating rod (3023), and the third gear (3024) is meshed with the toothed belt (3015).
4. A portable proximity switch testing apparatus as defined in claim 3, wherein: the elastic member (304) is a spring.
5. A portable proximity switch testing device according to claim 4, wherein: and friction force exists between the guide rail (3016) and the guide sleeve (3017).
6. A portable proximity switch testing device according to claim 5, wherein: the number of the metal sheets (104) is multiple, and the rotating handle (105) and the connecting block (103) are corresponding to the number of the groups.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911145006.7A CN110849405B (en) | 2019-11-21 | 2019-11-21 | Portable proximity switch test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911145006.7A CN110849405B (en) | 2019-11-21 | 2019-11-21 | Portable proximity switch test equipment |
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| CN110849405A CN110849405A (en) | 2020-02-28 |
| CN110849405B true CN110849405B (en) | 2022-06-28 |
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