CN215524497U - Semi-automatic tool for detecting coupling of subway - Google Patents
Semi-automatic tool for detecting coupling of subway Download PDFInfo
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- CN215524497U CN215524497U CN202120933918.7U CN202120933918U CN215524497U CN 215524497 U CN215524497 U CN 215524497U CN 202120933918 U CN202120933918 U CN 202120933918U CN 215524497 U CN215524497 U CN 215524497U
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Abstract
The utility model discloses a semi-automatic tool for detecting a subway paired wheel, which comprises an installation table, wherein an inserting hole is formed in the installation table, the inserting hole is inserted and assembled with one end of the inserting table, the other end of the inserting table is assembled with a telescopic cylinder, a hollow telescopic cavity is formed in the telescopic cylinder, the telescopic cavity is clamped with a sliding ring and can be axially assembled in a sliding manner, the sliding ring is installed at one end of a connecting shaft, the other end of the connecting shaft is assembled with a wheel frame, a wheel shaft is installed on the wheel frame, a roller wheel is sleeved on the wheel shaft in a circumferentially rotatable manner, and a detection spring is installed on the part, located between the sliding ring and the inserting table, of the telescopic cavity; the slip ring is assembled with one end of the detection shaft, the other end of the detection shaft sequentially penetrates through the insertion platform and the mounting platform and then is assembled with one end of the telescopic shaft, and the other end of the telescopic shaft is arranged in the linear potentiometer; the mounting table is further assembled with one end of the lifting pipe, the other end of the lifting pipe is directly or indirectly assembled with the shaft sleeve, a shaft sleeve hole coaxial with the shaft sleeve is formed in the inner side of the shaft sleeve, and the shaft sleeve hole is coaxially sleeved on the counter wheel shaft and can be assembled with the counter wheel shaft in a circumferential rotation mode relatively.
Description
Technical Field
The utility model relates to a subway coupling wheel overhauling technology, in particular to a semi-automatic tool for detecting a subway coupling wheel.
Background
In subway maintenance, the maintenance of the wheel comprises the roundness detection of the wheel, namely the abrasion condition of the circumference of the wheel. The current detection mode is to inform the ruler to measure the radius of the pair wheel according to a standard interval angle, and judge the roundness of the pair wheel through the length change of the radius, so that the subsequent maintenance and replacement are facilitated. The method can only roughly detect the roundness of the paired wheel, has higher error and low efficiency, seriously influences the normal operation of the maintenance process, and can not find out larger defects of the roundness in time, thereby having certain potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a semi-automatic tool for detecting a wheel of a subway, which can continuously detect the circumference of the wheel and has high efficiency and high precision.
In order to achieve the purpose, the utility model provides a semi-automatic tool for detecting a subway paired wheel, which comprises a mounting table, wherein an inserting hole is formed in the mounting table, the inserting hole is inserted and assembled with one end of the inserting table, the other end of the inserting table is assembled with a telescopic cylinder, a hollow telescopic cavity is formed in the telescopic cylinder, the telescopic cavity is clamped with a sliding ring and can be axially assembled in a sliding manner, the sliding ring is installed at one end of a connecting shaft, the other end of the connecting shaft is assembled with a wheel carrier, a wheel shaft is installed on the wheel carrier, a roller wheel is sleeved on the wheel shaft in a circumferentially rotatable manner, a detection spring is installed on the part, located between the sliding ring and the inserting table, of the telescopic cavity, and the detection spring is used for applying elastic force to the sliding ring, and pushing the roller wheel carrier so as to keep the side wall of a rim to be pressed tightly; the slip ring is assembled with one end of the detection shaft, the other end of the detection shaft sequentially penetrates through the insertion platform and the mounting platform and then is assembled with one end of the telescopic shaft, and the other end of the telescopic shaft is installed in the linear potentiometer;
the mounting table is further assembled with one end of the lifting pipe, the other end of the lifting pipe is directly or indirectly assembled with the shaft sleeve, a shaft sleeve hole coaxial with the shaft sleeve is formed in the inner side of the shaft sleeve, and the shaft sleeve hole is coaxially sleeved on the counter wheel shaft and can be assembled with the counter wheel shaft in a circumferential rotation mode relatively.
Preferably, the linear potentiometer is clamped on a support plate, the support plate is arranged on a support, the support is arranged on the mounting table, and the first bolt penetrates through the support plate and then is tightly propped against the linear potentiometer.
Preferably, still install the dustcoat on the mount table, still install the battery in the dustcoat, on the mount table, the battery is used for supplying power for circuit board, linear potentiometer, and the signal output part of linear potentiometer passes through first wire and MCU's signal end communication connection to make the signal of linear potentiometer can input in the MCU on the circuit board.
Preferably, a power switch is connected in series to the battery pair circuit board and a power supply line of the linear potentiometer, and the power switch is in an open state in an initial state and is in a closed state after being pressed.
Preferably, the circuit board is also provided with a buzzer, an indicator lamp circuit and a Bluetooth module, the buzzer is provided with a control circuit, a signal input end of the buzzer is in communication connection with a signal end of the MCU, and the indicator lamp circuit is used for controlling the working state of the indicator lamp; the signal end of the indicator light circuit and the signal end of the Bluetooth module are respectively in communication connection with the signal end of the MCU; an indicator light is mounted on the housing for providing an indication to an operator.
Preferably, the interior of the lifting pipe is provided with a hollow lifting pipe hole, the lifting pipe hole is clamped with one end of the guide shaft and can be axially assembled in a sliding manner, and the second bolt penetrates through the lifting pipe and then is pressed against the guide shaft; the other end of the guide shaft is arranged on a sleeve joint ring, and the sleeve joint ring is sleeved on the shaft sleeve.
Preferably, one end of the insertion table, which is arranged in the telescopic cavity, is provided with a second ring groove, and a third bolt penetrates through the telescopic cylinder and then is arranged in the second ring groove, so that the insertion table and the telescopic cylinder are fixed in the axial direction.
Preferably, one end of the insertion platform, which is installed in the insertion hole, is also provided with a first annular groove, the first annular groove is clamped and assembled with one end of the locking block, the other end of the locking block is provided with a sliding block, the sliding block is clamped and slidably assembled with the sliding block groove, and the sliding block groove is arranged on the installation platform; the sliding block is assembled with one end of the pull rod, the other end of the pull rod is sleeved with a locking block spring, penetrates through the mounting platform and then is assembled with the pull ring, and the locking block spring is used for applying elastic force for pushing the sliding block to the first annular groove; and a limiting ring is arranged on the part of the pull rod penetrating out of the mounting table, and the limiting ring cannot penetrate through the mounting table.
Preferably, the shaft sleeve is further provided with a notch and a threaded hole, the notch is internally provided with a trigger head and an elastic sheet, the trigger head is installed at one end of the elastic sheet, the other end of the elastic sheet is installed on the outer ring, the fourth bolt penetrates through the outer ring and then is assembled with the shaft sleeve, the elastic sheet is elastic, and when the shaft sleeve is not sleeved on the counter shaft, the elastic sheet is gradually close to the axis of the shaft sleeve from one end of the elastic sheet installed with the outer ring to one end of the elastic sheet installed with the trigger head, so that the trigger head enters the inner side of the inner wall of the shaft sleeve hole in the radial direction;
a microswitch is arranged on the side wall of the notch groove or at the threaded hole, the trigger end of the microswitch enters the notch groove, and the elastic sheet is not contacted with the trigger end of the microswitch in the initial state; when the shaft sleeve is sleeved on the counter axle, the trigger head can be extruded on the counter axle, so that the elastic sheet is bent towards the microswitch, and the microswitch is triggered; the micro switch is in communication connection with the signal end of the MCU through a second lead.
Preferably, the threaded hole is communicated with the notch, the threaded hole is assembled with the threaded cylinder in a screwing mode through threads, an inner clamping hole is formed in the inner side of the threaded cylinder, the inner clamping hole is assembled with a positioning ring in a clamping mode, and the positioning ring is installed on a shell of the microswitch; and a blocking pipe is further arranged in the inner clamping hole and compresses the positioning ring on the end surface of the inner clamping hole.
The utility model has the beneficial effects that:
the utility model utilizes the linear potentiometer to detect the circular runout of the rim, and compared with the mode of adopting a ruler to measure, the mode has higher efficiency and precision, and the linear potentiometer is more real and is in line with the complex environment requirement of maintenance. In addition, the utility model can realize at least semi-automatic detection, and can find out the position with large fluctuation of the roundness of the wheel in time through the indication of the indicator light and the buzzer, thereby providing a foundation for subsequent repair and replacement.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the pair of wheels 900 of this embodiment includes rims 910 that roll in engagement with the rails, and the pair of wheels 900 are coaxially mounted on a pair of axles 920.
Referring to fig. 1 to 3, the semi-automatic tooling of the embodiment includes an installation table 110, an insertion hole 111 is provided on the installation table 110, the insertion hole 111 is inserted into and assembled with one end of an insertion table 460, the other end of the insertion table 460 is assembled with a telescopic cylinder 470, the telescopic cylinder 470 is internally provided with a hollow telescopic cavity 471, the telescopic cavity 471 is engaged with a sliding ring 481 and assembled in an axially sliding manner, the sliding ring 481 is installed at one end of a connection shaft 480, the other end of the connection shaft 480 is assembled with a wheel carrier 140, the wheel carrier 140 is provided with a wheel shaft 440, a roller 610 is sleeved on the wheel shaft 440 in a circumferentially rotatable manner, a detection spring 510 is installed on a portion of the telescopic cavity 471, which is located between the sliding ring 481 and the insertion table 460, and the detection spring 510 is used for applying an elastic force to the sliding ring 481 to push the wheel carrier 140, so that the roller is always pressed against a rim 910.
The slip ring 481 is assembled with one end of the detection shaft 450, the other end of the detection shaft 450 penetrates through the plug-in platform 460 and the mounting platform 110 in sequence and then is assembled with one end of the telescopic shaft 251, the other end of the telescopic shaft 251 is installed in the linear potentiometer 250, and the linear potentiometer 250 can generate signals when the telescopic shaft 251 moves axially, and the signals are input into the MCU on the circuit board 240, so that the displacement of the telescopic shaft 251 is monitored in real time to judge the circular runout (roundness) of the rim.
The linear potentiometer 250 is clamped on the support plate 131, the support plate 131 is arranged on the support 130, the support 130 is arranged on the mounting table 110, and the first bolt 311 penetrates through the support plate 131 and then is tightly propped against the linear potentiometer 250, so that the linear potentiometer 250 is fixed.
The mounting table 110 is further provided with an outer cover 120, the mounting table 110 and the inner cover 120 are further provided with a battery 230, the battery 230 is used for supplying power to the circuit board 240 and the linear potentiometer 250, a signal output end of the linear potentiometer 250 is in communication connection with a signal end of the MCU through a first lead 261, the battery 230 is connected with a power switch 210 in series on a power supply line of the circuit board 240 and the linear potentiometer 250, the power switch 210 is in an off state in an initial state and is in a closed state after being pressed.
The circuit board 240 is further provided with a buzzer, an indicator light circuit and a Bluetooth module, the buzzer is provided with a control circuit, a signal input end of the buzzer is in communication connection with a signal end of the MCU, and the indicator light circuit is used for controlling the working state of the indicator light 220, such as opening and closing, flashing frequency, lighting color and the like. And the signal end of the indicator light circuit and the signal end of the Bluetooth module are respectively in communication connection with the signal end of the MCU. An indicator light 220 is mounted on the housing 120 for providing an indication to an operator. When the linear potentiometer detects the position where the circumference of the rim is jumped too much (exceeds a preset threshold), the MCU controls the buzzer to sound and the indicator lamp to flicker, and therefore an operator is prompted to have a maintenance point. And MCU can be through in bluetooth module with the mode of bluetooth wireless communication with survey data input outside bluetooth device (smart mobile phone, computer lamp) to make the operator know specific value of beating, for subsequent restoration, change provide the reference. The working modes and the remote positions of the indicator light, the buzzer and the MCU are very common technologies, and the scheme is not repeated.
The mounting table 110 is further assembled with one end of the elevator tube 420, a hollow elevator tube hole 421 is formed inside the elevator tube 420, the elevator tube hole 421 is engaged with one end of the guide shaft 410 and can be axially assembled in a sliding manner, and the second bolt 312 penetrates through the elevator tube 420 and then is tightly pressed against the guide shaft 410, so that the elevator tube 420 and the guide shaft 410 are axially fixed relatively. The other end of the guide shaft 410 is mounted on the sleeve ring 411, the sleeve ring 411 is fixedly sleeved on the shaft sleeve 430, a shaft sleeve hole 431 coaxial with the shaft sleeve 430 is arranged on the inner side of the shaft sleeve 430, and the shaft sleeve hole 431 is coaxially sleeved on the counter wheel shaft 920 and can be assembled with the counter wheel shaft 920 in a relatively circumferential rotation mode.
In use, the adjustment roller is first pressed against the side wall of the rim 910, and the value detected by the linear potentiometer is recorded and used as a reference value. The sleeve, roller, is then manually driven to rotate at least one revolution in the circumferential direction of rim 910. In the rotating process, if the side wall of the rim 910 is uneven (the distance between the side wall of the rim 910 and the axis of the rim is large relative to the radius of the rim), the roller can displace in the radial direction of the rim 910, so that the telescopic shaft is driven to move synchronously, the telescopic shaft enables the linear potentiometer 250 to generate an electric signal and input the electric signal into the MCU, the MCU compares the signal value with a preset threshold value, once the electric signal exceeds the range of the preset threshold value, the buzzer and the indicator light are started, and relevant information is output to external equipment through Bluetooth communication, so that an operator is reminded of the fact that the place is abnormal and needs to pay attention; on the other hand, the method provides a foundation for subsequent repair and replacement of workers. The staff can mark out the mark at the warning place to provide guidance for subsequent operation.
Preferably, one end of the insertion platform 460, which is inserted into the telescopic cavity 471, is provided with a second annular groove 462, and the third bolt 313 is inserted into the second annular groove 462 after passing through the telescopic cylinder 470, so as to fix the insertion platform 460 and the telescopic cylinder 470 in the axial direction.
Preferably, a first annular groove 461 is further arranged at one end of the insertion platform 460, which is inserted into the insertion hole 111, the first annular groove 461 is assembled with one end of the locking block 710 in a clamping manner, a slider 711 is arranged at the other end of the locking block 710, the slider 711 is assembled with the slider groove 112 in a clamping manner in a sliding manner, and the slider groove 112 is arranged on the installation platform 110; the slider 711 is assembled with one end of the pull rod 720, the other end of the pull rod 720 is sleeved with the locking spring 520, and then penetrates through the mounting table 110 to be assembled with the pull ring 722, and the locking spring 520 is used for applying elastic force to the slider 711, which pushes the first annular groove 461, so that the locking block 710 is always clamped and mounted in the slider groove 112. The part of the pull rod 720 penetrating through the mounting table 110 is provided with a limit ring 721, and the limit ring cannot penetrate through the mounting table, so that the maximum displacement of the pull rod 720 moving to the first ring groove is limited. When the inserting platform 460 needs to be pulled out from the inserting hole 111, the pulling ring 722 pulls the locking piece 710 out of the first annular groove 461, and then the inserting platform 460 can be pulled out from the inserting hole 111.
Preferably, since the positioning of the present embodiment is based on the axle 920, once the inner diameter of the axle housing hole 431 is too large to be larger than the outer diameter of the axle 920, the positioning error is large, and the measured value at this time cannot be used as the detection reference. In order to find out the problems in time, the inventor further improves the following steps:
the shaft sleeve 430 is further provided with a notch 432 and a threaded hole 433, the trigger head 830 and an elastic sheet 820 are installed in the notch 432, the trigger head 830 is installed at one end of the elastic sheet 820, the other end of the elastic sheet 820 is installed on the outer ring 810, the fourth bolt 314 penetrates through the outer ring 810 and then is assembled with the shaft sleeve 430, the elastic sheet 820 has elasticity, and when the shaft sleeve is not sleeved on the opposite wheel shaft, one end of the elastic sheet 820, which is installed with the outer ring 810, is gradually close to the shaft sleeve axis towards one end where the trigger head 830 is installed, so that the trigger head 830 enters the inner wall of the shaft sleeve hole 431 in the radial direction.
The threaded hole 433 is communicated with the notch, the threaded hole 433 is assembled with the threaded barrel 840 in a screwing mode through threads, an inner clamping hole 841 is formed in the inner side of the threaded barrel 840, the inner clamping hole 841 is assembled with a positioning ring 271 in a clamping mode, the positioning ring 271 is installed on a shell of the micro switch 270, a trigger end of the micro switch 270 enters the notch 432, and the elastic sheet 820 is not contacted with the trigger end of the micro switch 270 in an initial state; when the sleeve is sleeved on the counter axle, the trigger head 830 is pressed on the counter axle, so that the elastic sheet 820 bends towards the micro switch 270, and the micro switch 270 is triggered. The micro-gap switch has a plurality ofly and sets up along the axle sleeve circumferencial direction, and every micro-gap switch is connected with MCU's signal end communication through the second wire 262 of difference respectively to with micro-gap switch's trigger signal input MCU.
Preferably, in order to compare the micro switch displacement in the axial direction of the threaded cylinder 840, a blocking tube 850 is further installed in the inner clamping hole 841, and the blocking tube 850 presses the positioning ring 271 against the end surface of the inner clamping hole 841, thereby fixing the micro switch in the axial direction.
In the use process, once the deviation between the inner diameter of the shaft sleeve hole 431 and the outer diameter of the wheel axle 920 is large, at least one microswitch does not output signals at a certain angle (in the circumferential direction of the shaft sleeve), and the MCU gives out a warning (a buzzer sounds and an indicator lamp is turned on) so as to remind an operator. At the moment, an operator can replace a proper shaft sleeve or adopt a tool for other tools to detect, so that the situation that the subsequent detection error is larger due to larger positioning error is avoided, and the situation that the detection result does not have reference value at all due to too large error is prevented.
The utility model is not described in detail, but is well known to those skilled in the art.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A semi-automatic tool for detecting a subway paired wheel is used for detecting the roundness of a rim of the paired wheel, wherein the paired wheel comprises a rim which is attached to a steel rail and rolls, and the paired wheel is coaxially sleeved on a paired wheel shaft; the wheel carrier is characterized by comprising an installation platform, wherein an inserting hole is formed in the installation platform, the inserting hole is inserted and assembled with one end of the inserting platform, the other end of the inserting platform is assembled with a telescopic cylinder, a hollow telescopic cavity is formed in the telescopic cylinder, the telescopic cavity is clamped with a sliding ring and can be axially assembled in a sliding mode, the sliding ring is installed at one end of a connecting shaft, the other end of the connecting shaft is assembled with the wheel carrier, a wheel shaft is installed on the wheel carrier, a roller is sleeved on the wheel shaft in a circumferentially rotatable mode, a detection spring is installed on the part, located between the sliding ring and the inserting platform, of the telescopic cavity, and the detection spring is used for applying elastic force to the sliding ring to push the wheel carrier so as to keep the roller and the side wall of a rim to be pressed tightly; the slip ring is assembled with one end of the detection shaft, the other end of the detection shaft sequentially penetrates through the insertion platform and the mounting platform and then is assembled with one end of the telescopic shaft, and the other end of the telescopic shaft is installed in the linear potentiometer;
the mounting table is further assembled with one end of the lifting pipe, the other end of the lifting pipe is directly or indirectly assembled with the shaft sleeve, a shaft sleeve hole coaxial with the shaft sleeve is formed in the inner side of the shaft sleeve, and the shaft sleeve hole is coaxially sleeved on the counter wheel shaft and can be assembled with the counter wheel shaft in a circumferential rotation mode relatively.
2. The semi-automatic tooling of claim 1, wherein: the linear potentiometer is clamped on the support plate, the support plate is arranged on the support, the support is arranged on the mounting table, and the first bolt penetrates through the support plate and then is tightly propped against the linear potentiometer.
3. The semi-automatic tooling of claim 1, wherein: still install the dustcoat on the mount table, still install the battery in the dustcoat, on the mount table, the battery is used for supplying power for circuit board, linear potentiometer, and the signal output part of linear potentiometer passes through first wire and MCU's signal end communication connection to make the signal of linear potentiometer can input in the MCU on the circuit board.
4. The semi-automatic tooling of claim 3, wherein: the battery pair circuit board and the power supply line of the linear potentiometer are connected in series with a power switch, the power switch is in an off state in an initial state and is in a closed state after being pressed.
5. The semi-automatic tooling of claim 3, wherein: the circuit board is also provided with a buzzer, an indicator lamp circuit and a Bluetooth module, the buzzer is provided with a control circuit, the signal input end of the buzzer is in communication connection with the signal end of the MCU, and the indicator lamp circuit is used for controlling the working state of the indicator lamp; the signal end of the indicator light circuit and the signal end of the Bluetooth module are respectively in communication connection with the signal end of the MCU; an indicator light is mounted on the housing for providing an indication to an operator.
6. The semi-automatic tooling of claim 1, wherein: the interior of the lifting pipe is provided with a hollow lifting pipe hole, the lifting pipe hole is clamped with one end of the guide shaft and can be axially assembled in a sliding manner, and the second bolt penetrates through the lifting pipe and then is tightly pressed with the guide shaft; the other end of the guide shaft is arranged on a sleeve joint ring, and the sleeve joint ring is sleeved on the shaft sleeve.
7. The semi-automatic tooling of claim 1, wherein: and a second annular groove is formed in one end, which is filled into the telescopic cavity, of the insertion platform, and a third bolt penetrates through the telescopic cylinder and is filled into the second annular groove, so that the insertion platform and the telescopic cylinder are fixed in the axial direction.
8. The semi-automatic tooling of claim 1, wherein: the end, which is installed into the plugging hole, of the plugging platform is also provided with a first annular groove, the first annular groove is clamped and assembled with one end of the locking block, the other end of the locking block is provided with a sliding block, the sliding block is clamped with the sliding block groove and can be assembled in a sliding mode, and the sliding block groove is formed in the installation platform; the sliding block is assembled with one end of the pull rod, the other end of the pull rod is sleeved with a locking block spring, penetrates through the mounting platform and then is assembled with the pull ring, and the locking block spring is used for applying elastic force for pushing the sliding block to the first annular groove; and a limiting ring is arranged on the part of the pull rod penetrating out of the mounting table, and the limiting ring cannot penetrate through the mounting table.
9. The semi-automatic tooling of any one of claims 1-8, wherein: the shaft sleeve is also provided with a notch and a threaded hole, a trigger head and an elastic sheet are installed in the notch, the trigger head is installed on one end of the elastic sheet, the other end of the elastic sheet is installed on the outer ring, a fourth bolt penetrates through the outer ring and then is assembled with the shaft sleeve, the elastic sheet is elastic, and the shaft sleeve is not sleeved on the counter shaft, one end of the elastic sheet is installed on the outer ring, one end of the elastic sheet is gradually close to the shaft sleeve axis, and therefore the trigger head enters the inner wall of the shaft sleeve hole in the radial direction;
a microswitch is arranged on the side wall of the notch groove or at the threaded hole, the trigger end of the microswitch enters the notch groove, and the elastic sheet is not contacted with the trigger end of the microswitch in the initial state; when the shaft sleeve is sleeved on the counter axle, the trigger head can be extruded on the counter axle, so that the elastic sheet is bent towards the microswitch, and the microswitch is triggered; the micro switch is in communication connection with the signal end of the MCU through a second lead.
10. The semi-automatic tooling of claim 9, wherein: the threaded hole is communicated with the notch, the threaded hole and the threaded cylinder are assembled in a screwing mode through threads, an inner clamping hole is formed in the inner side of the threaded cylinder, the inner clamping hole and a positioning ring are assembled in a clamping mode, and the positioning ring is installed on a shell of the microswitch; and a blocking pipe is further arranged in the inner clamping hole and compresses the positioning ring on the end surface of the inner clamping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120933918.7U CN215524497U (en) | 2021-05-01 | 2021-05-01 | Semi-automatic tool for detecting coupling of subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120933918.7U CN215524497U (en) | 2021-05-01 | 2021-05-01 | Semi-automatic tool for detecting coupling of subway |
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| Publication Number | Publication Date |
|---|---|
| CN215524497U true CN215524497U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120933918.7U Expired - Fee Related CN215524497U (en) | 2021-05-01 | 2021-05-01 | Semi-automatic tool for detecting coupling of subway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117503326A (en) * | 2024-01-05 | 2024-02-06 | 湖南金柏威医疗科技有限公司 | Electrocoagulation cutting device |
-
2021
- 2021-05-01 CN CN202120933918.7U patent/CN215524497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117503326A (en) * | 2024-01-05 | 2024-02-06 | 湖南金柏威医疗科技有限公司 | Electrocoagulation cutting device |
| CN117503326B (en) * | 2024-01-05 | 2024-04-09 | 湖南金柏威医疗科技有限公司 | Electrocoagulation cutting device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |