CN108861988B - Real-time detection device for abnormal actions of comb teeth - Google Patents
Real-time detection device for abnormal actions of comb teeth Download PDFInfo
- Publication number
- CN108861988B CN108861988B CN201811009211.6A CN201811009211A CN108861988B CN 108861988 B CN108861988 B CN 108861988B CN 201811009211 A CN201811009211 A CN 201811009211A CN 108861988 B CN108861988 B CN 108861988B
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- switch
- comb teeth
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- 230000002159 abnormal effect Effects 0.000 title claims abstract description 30
- 238000011897 real-time detection Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 127
- 244000126211 Hericium coralloides Species 0.000 claims abstract description 30
- 238000010009 beating Methods 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 22
- 210000003734 kidney Anatomy 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 208000010641 Tooth disease Diseases 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 208000012661 Dyskinesia Diseases 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B27/00—Indicating operating conditions of escalators or moving walkways
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- Escalators And Moving Walkways (AREA)
Abstract
The application provides a comb abnormal motion real-time detection device, which is used for detecting abnormal motion of comb teeth of an escalator or a moving walk in real time, and comprises the following components: the first end of the detection rod is fixed on the side edge of the comb plate; the comb tooth centering support plate is fixed on one side of the comb tooth plate; the detection rod support is fixed on the support plate, and the initial section of the detection rod support is provided with a long waist round hole and is rotatably connected with the detection rod support through the long waist round hole; the switch bracket is fixed on the supporting plate and positioned at the tail section of the supporting plate, and comprises a vertical fixing plate and a horizontal fixing plate, wherein the vertical fixing plate is detachably fixed with a comb tooth upward jump detection switch, and the horizontal fixing plate is detachably fixed with a comb tooth backward detection switch; the second end of the detection rod is fixedly connected with an inclined switch beating plate, and two side surfaces of the switch beating plate are respectively contacted with the two detection switches. By utilizing the embodiments of the application, the real-time detection of the backward movement and the upward jump of the comb teeth can be realized at the same time.
Description
Technical Field
The application relates to the technical field of escalators, in particular to a comb abnormal motion real-time detection device.
Background
The comb tooth centering device is one of important parts of the escalator and the moving sidewalk, is positioned between the running steps or pedals and the stationary movable cover plate, plays a transitional role, and is convenient for passengers to get on or off the escalator or the moving sidewalk.
However, during operation of the escalator or moving walkway, if a hard foreign object is caught between the comb teeth and the steps or footrests, the comb teeth are caused to move backward (backward) or to turn upward (jump up). For such abnormal actions, if the elevator cannot be found and stopped in time and the escalator or the sidewalk continues to run, serious safety accidents may occur. Therefore, abnormal actions such as jumping up or backing back of comb teeth and the like are detected in time and even at the first time, and the safety of the escalator and the moving walk is very important.
However, in the prior art, for the detection of the abnormal action of the comb teeth, two sets of devices are generally adopted to detect the backward movement and the upward jump of the comb teeth respectively, so that the device has a complex structure and large occupied space, the reliability of the device is low, the timeliness of the detection is low, and the cost is increased.
The prior art has at least the following problems: usually, two sets of devices are adopted to detect the backward movement and the upward jump of the comb teeth respectively, so that the device is complex in structure and large in occupied space, the reliability of the device is low, the timeliness of detection is low, and the cost is increased.
Disclosure of Invention
The embodiment of the application aims to provide a device for detecting abnormal actions of comb teeth in real time so as to detect the backward movement and the upward jump of the comb teeth in real time at the same time and improve the safety of an escalator or a moving walk.
The embodiment of the application provides a device for detecting abnormal actions of comb teeth in real time, which is realized by the following steps:
a comb abnormal motion real-time detection apparatus for detecting abnormal motion of comb teeth of an escalator or a moving walk in real time, the apparatus comprising:
the first end of the detection rod is fixed at the side edge of the comb plate, and extends a preset distance in the direction of the comb teeth;
the comb tooth centering support plate is fixed on one side of the comb tooth plate, is positioned on the same side of the comb tooth plate as the detection rod, is positioned below the detection rod and is parallel to the detection rod;
the detection rod support is fixed on the support plate, a long waist round hole is formed in the initial section of the detection rod, the detection rod and the detection rod support are rotatably connected through the long waist round hole by using a first bolt assembly, and a bolt of the first bolt assembly can horizontally move in the long waist round hole;
the switch bracket is fixed on the supporting plate and positioned at the tail end of the supporting plate, and comprises a vertical fixing plate and a horizontal fixing plate, wherein the vertical fixing plate is detachably fixed with a comb tooth upward jump detection switch, and the horizontal fixing plate is detachably fixed with a comb tooth backward detection switch;
the second end of the detection rod is fixedly connected with an inclined switch beating plate, and two side surfaces of the switch beating plate are respectively contacted with the comb tooth upward-jump detection switch and the comb tooth backward detection switch.
In a preferred embodiment, the abnormal actions of the comb teeth include: the comb teeth jump upwards, the comb teeth move backwards, and the comb teeth jump upwards and move backwards.
In a preferred embodiment, the first bolt assembly includes a first bolt, a first sleeve and a first nut, the first bolt penetrates through the detection rod and the detection rod support through the long waist round hole, the first sleeve and the first nut are sleeved on the first bolt, the first sleeve is located between the detection rod and the detection rod support, the first nut and the side face, facing away from the detection rod, of the detection rod support are abutted, the first bolt is located in the middle of the long waist round hole, and the first bolt can move relatively in the long waist round hole.
In a preferred embodiment, the switch board is welded at the second end of the detection rod, and two side surfaces of the switch board form acute angles with the vertical direction and the horizontal direction.
In a preferred embodiment, the comb-tooth upward-jump detection switch is fixed on the vertical fixing plate through a bolt and a thread plate, the comb-tooth upward-jump detection switch can be detached from the upper end of the vertical fixing plate, and the lower end of the comb-tooth upward-jump detection switch is in contact with the side surface of the switch beating plate.
In a preferred embodiment, the comb-teeth backward detection switch is fixed on the horizontal fixing plate through a bolt and a thread plate, the comb-teeth backward detection switch can be detached from the front end of the horizontal fixing plate, and the rear end of the comb-teeth backward detection switch is in contact with the side surface of the switch beating plate.
In a preferred embodiment, the first end of the detection bar is rotatably fixed to the side edge of the comb plate by a second bolt assembly.
In a preferred embodiment, the second bolt assembly comprises a second bolt and a second sleeve, the second bolt penetrates through the detection rod and is connected with the side edge of the comb plate, and the second sleeve is sleeved on the second bolt and is located between the detection rod and the side edge of the comb plate and is respectively contacted with the detection rod and the side edge.
In a preferred embodiment, when the comb teeth are retreated, the comb teeth plate translates to drive the detection rod to translate, the detection rod drives the switch beating plate to translate, and the switch beating plate beats the comb teeth retreated detection switch.
In a preferred embodiment, when the comb teeth jump upwards, the comb teeth plate moves upwards to drive the first end of the detection rod to move upwards, the detection rod rotates around the long kidney round hole to drive the switch beating plate at the second end of the detection rod to move downwards, and the switch beating plate beats the comb teeth jump upwards to detect the switch to fall.
The device for detecting abnormal actions of the comb teeth in real time can detect the backward movement and the upward jump of the comb teeth in real time at the same time, can achieve the detection purpose by using the same detection rod, and is simple in structure and high in reliability. The safety of the elevator or the escalator can be effectively improved, and the cost can be effectively saved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an installation structure of a device for detecting abnormal actions of comb teeth in real time according to an embodiment of the present application;
fig. 2 is a schematic top view of an installation structure of a device for detecting abnormal movements of comb teeth in real time according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a device for detecting abnormal movements of comb teeth in real time according to an embodiment of the present application;
FIG. 4 is a schematic view of an embodiment of the switch bracket provided by the present application;
FIG. 5 is a schematic view of an embodiment of the detection rod according to the present application;
FIG. 6 is a schematic diagram of the motion of a real-time detecting device for abnormal motion of comb teeth when the comb teeth are retreated according to an embodiment of the present application;
fig. 7 is a schematic diagram of an abnormal comb motion real-time detection device according to an embodiment of the present application when a comb jumps.
Detailed Description
The embodiment of the application provides a device for detecting abnormal actions of comb teeth in real time.
In order to make the technical solution of the present application better understood by those skilled in the art, the technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, shall fall within the scope of the application.
Fig. 1 is a schematic diagram of an installation structure of a device for detecting abnormal movements of comb teeth in real time according to an embodiment of the present application. Fig. 2 is a schematic top view of an installation structure of a device for detecting abnormal movements of comb teeth in real time according to an embodiment of the present application. Fig. 3 is a schematic structural diagram of a device for detecting abnormal movements of comb teeth in real time according to an embodiment of the present application. Although the application provides a method operation or apparatus structure as shown in the following examples or figures, more or fewer operation steps or module units may be included in the method or apparatus based on routine or non-inventive labor.
Specifically, as shown in fig. 1, fig. 2, and fig. 3, an embodiment of a device for detecting abnormal movements of comb teeth in real time provided by the present application may be used for detecting abnormal movements of comb teeth of an escalator or a moving walk in real time, and may include:
a detection rod 2, wherein a first end 21 of the detection rod 2 is fixed on the side edge of the comb plate 1 and extends a preset distance towards the direction of the comb teeth 11;
a comb centering support plate 4 fixed on one side of the comb plate 1 and positioned on the same side of the comb plate 1 as the detection rod 2, and positioned below the detection rod 2 and parallel to the detection rod 2;
the detection rod support 3 is fixed on the support plate 4, a long waist round hole 23 is formed in the initial section of the detection rod 2, the detection rod 2 and the detection rod support 3 are rotatably connected through the long waist round hole 23 by using a first bolt assembly 5, and a bolt of the first bolt assembly 5 can horizontally move in the long waist round hole 23;
the switch bracket 6 is fixed on the supporting plate 4 and is positioned at the tail section of the supporting plate 4, and comprises a vertical fixing plate 61 and a horizontal fixing plate 62, wherein the vertical fixing plate 61 is detachably fixed with a comb-tooth upward-jump detection switch 7, and the horizontal fixing plate 62 is detachably fixed with a comb-tooth backward-movement detection switch 8;
the second end 22 of the detection rod 2 is fixedly connected with an inclined switch beating plate 9, and two side surfaces of the switch beating plate 9 are respectively contacted with the comb tooth upward jump detection switch 7 and the comb tooth backward detection switch 8.
Wherein, the abnormal actions of the comb teeth may include: the comb teeth jump upwards, the comb teeth move backwards, and the comb teeth jump upwards and move backwards. The backward movement of the comb teeth means that the comb teeth 1 move towards the advancing direction of the stair steps or the sidewalk pedals, namely are pushed by the stair steps or the sidewalk pedals. The upward jump of the comb teeth means that the comb plate 1 turns upwards.
Fig. 4 is a schematic structural view of an embodiment of the switch bracket provided by the application. As shown in fig. 4, in this example, the switch bracket 6 includes a vertical fixing plate 61, a horizontal fixing plate 62, and a base 63, and the switch bracket may be bolted to the support plate 4 through the base 63, and the base 63 is abutted against the upper surface of the support plate 4. Specifically, the fixing manner is not limited in the present application, and the base 63 may be directly welded to the support plate 4.
Fig. 5 is a schematic structural view of an embodiment of the detection rod provided by the application. As shown in fig. 5, in this example, the first end 21 of the detecting rod 2 is provided with a circular hole, the middle section of the detecting rod 2 is provided with a long waist circular hole 23, and the distance from the long waist circular hole 23 to the first end 21 is the distance from the second end 22, so that when the detecting rod 2 rotates around the long waist circular hole 23, a lever effect can be generated. One side welding of second end 22 has the switch of slope setting to beat board 9, the slope refers to switch beat board 9 all has the contained angle with vertical direction and horizontal direction, and is preferred, switch beat board 9 and the contained angle with vertical direction and the contained angle with horizontal direction are 45 degrees.
In this example, as shown in fig. 2, the first bolt assembly 5 includes a first bolt 51, a first sleeve 52, and a first nut 53, where the first bolt 51 penetrates through the oblong hole 23 and the detection rod support 3, the first sleeve 52 and the first nut 53 are sleeved on the first bolt 51, the first sleeve 52 is located between the detection rod 2 and the detection rod support 3, and the first nut 53 is abutted against a side surface of the detection rod support 3 facing away from the detection rod 2, where the first bolt 53 is located in the middle of the oblong hole 23, and the first bolt 53 can relatively move in the oblong hole 23.
In this example, the comb-teeth-up detection switch 7 is fixed on the vertical fixing plate 61 through a bolt and a threaded plate 71, the comb-teeth-up detection switch 7 can be detached from the upper end of the vertical fixing plate 61, and the lower end of the comb-teeth-up detection switch 7 is abutted against the side surface of the switch striking plate 9. In this case, as shown in fig. 1 and 3, the lower end of the comb-teeth jump detection switch 7 is cylindrical, and the side surface of the cylindrical shape is tangent to the side surface of the switch board 9. When the switch beating plate 9 moves leftwards, the side face of the switch beating plate pushes the comb-teeth upward-jump detection switch 7 upwards so that the comb-teeth upward-jump detection switch 7 falls off.
In this example, the comb-teeth-back detection switch 8 is fixed on the horizontal fixing plate 62 by bolts and a threaded plate 81, the comb-teeth-back detection switch 8 can be detached from the front end of the horizontal fixing plate, and the rear end of the comb-teeth-back detection switch 8 is abutted against the side surface of the switch board 9. In this case, as shown in fig. 1 and 3, the lower end of the comb back detection switch 8 is cylindrical, and the side surface of the cylindrical shape is tangent to the other side surface of the switch board 9. When the switch beating plate 9 moves downwards, the side surface of the switch beating plate pushes the comb back detection switch 8 backwards so that the comb back detection switch 8 falls off.
In this example, the first end of the detection rod 2 is rotatably fixed to the side edge of the comb plate 1 by a second bolt assembly 10.
In this example, as shown in fig. 2, the second bolt assembly 10 includes a second bolt 101 and a second sleeve 102, where the second bolt 101 penetrates through the detection rod 2 and is connected to a side edge of the comb plate 1, and the second sleeve 102 is disposed on the second bolt 101 and is located between the detection rod 2 and the side edge of the comb plate 1 and contacts with the detection rod 2 and the side edge of the comb plate 1, respectively. When the comb plate 1 is lifted upward, the first end 21 of the detection rod 2 is lifted upward.
Fig. 6 is a schematic diagram of an abnormal comb motion real-time detection device according to an embodiment of the present application. As the arrow direction in fig. 6 indicates the moving direction of the comb plate and the moving direction of the detecting rod, in this example, when the comb teeth 11 are retreated, the comb plate 1 translates to drive the detecting rod 2 to translate, the detecting rod 2 drives the switch board 9 to translate, and the switch board 9 blows off the comb teeth retreating detecting switch 8.
Fig. 7 is a schematic diagram of an abnormal comb motion real-time detection device according to an embodiment of the present application when a comb jumps. As shown in fig. 7, the first arrow indicates the turning direction of the comb plate 1, the second arrow indicates the rotating direction of the detecting rod 2, when the comb teeth 11 jump up, the comb plate 1 moves upward, driving the first end 21 of the detecting rod 2 to move upward, the detecting rod 2 rotates around the long kidney hole 23, driving the switch board 9 at the second end of the detecting rod 2 to move downward, and the switch board 9 beats the comb upward to the detecting switch 7.
Correspondingly, the comb back detection switch 8 and the comb jump detection switch 7 are provided with corresponding sensors, such as a collision sensor or a speed sensor, and are in phase connection (can be wired connection or radio wave connection) with a stop controller of the escalator or the moving walk, when the detection switch falls off, a sensing signal can be sent to the stop controller, and the stop controller emergently stops the escalator or the moving walk, so that danger can be effectively avoided.
By means of the implementation mode of the comb abnormal action real-time detection device, the backward movement and the upward jump of the comb teeth can be detected in real time, the detection purpose can be achieved by means of the same detection rod, the structure is simple, and the reliability is high. The safety of the elevator or the escalator can be effectively improved, and the cost can be effectively saved.
Various embodiments in this specification are described in a progressive manner, and identical or similar parts are all provided for each embodiment, each embodiment focusing on differences from other embodiments.
Although the present application has been described by way of examples, one of ordinary skill in the art appreciates that there are many variations and modifications that do not depart from the spirit of the application, and it is intended that the appended claims encompass such variations and modifications as fall within the spirit of the application.
Claims (7)
1. The utility model provides a comb tooth abnormal motion real-time detection device which characterized in that is used for detecting the abnormal motion of the comb tooth of automatic escalator or moving walk in real time, the abnormal motion of comb tooth includes: the comb teeth jump upwards and the comb teeth retreat, and the device comprises:
the first end of the detection rod is fixed at the side edge of the comb plate, and extends a preset distance in the direction of the comb teeth;
the comb tooth centering support plate is fixed on one side of the comb tooth plate, is positioned on the same side of the comb tooth plate as the detection rod, is positioned below the detection rod and is parallel to the detection rod;
the detection rod support is fixed on the support plate, a long waist round hole is formed in the position, close to the first end of the detection rod, the detection rod is rotatably connected with the detection rod support through the long waist round hole by using a first bolt component, and a bolt of the first bolt component can horizontally move in the long waist round hole;
the switch bracket is fixed on the supporting plate and positioned at one end of the supporting plate, and comprises a vertical fixing plate and a horizontal fixing plate, wherein the vertical fixing plate is detachably fixed with a comb tooth upward jump detection switch, and the horizontal fixing plate is detachably fixed with a comb tooth backward detection switch;
the second end of the detection rod is fixedly connected with an inclined switch beating plate, two side surfaces of the switch beating plate are respectively contacted with the comb tooth jump-up detection switch and the comb tooth backward detection switch, and the detection rod is configured to simultaneously and constantly detect the jump-up and backward of the comb teeth;
when the comb teeth are retreated, the comb teeth plate translates to drive the detection rod to translate, the detection rod drives the switch beating plate to translate, and the switch beating plate beats down the comb teeth retreated detection switch;
when the comb teeth jump upwards, the comb tooth plate moves upwards to drive the first end of the detection rod to move upwards, the detection rod rotates around the long kidney round hole to drive the switch beating plate at the second end of the detection rod to move downwards, and the switch beating plate is used for beating the comb teeth jump upwards to detect the switch to fall.
2. The device for detecting abnormal actions of comb teeth in real time according to claim 1, wherein the first bolt assembly comprises a first bolt, a first sleeve and a first nut, the first bolt penetrates through the detection rod and the detection rod support through the long waist round hole, the first sleeve and the first nut are sleeved on the first bolt, the first sleeve is located between the detection rod and the detection rod support, the first nut is abutted to the side face, facing away from the detection rod, of the detection rod support, the first bolt is located in the middle of the long waist round hole, and the first bolt can relatively move in the long waist round hole.
3. The device for detecting abnormal actions of comb teeth according to claim 1, wherein the switch beating plate is welded at the second end of the detection rod, and both side surfaces of the switch beating plate form acute angles with the vertical direction and the horizontal direction.
4. The device for detecting abnormal actions of comb teeth in real time according to claim 1, wherein the comb teeth jump detection switch is fixed on the vertical fixing plate through bolts and threaded plates, the comb teeth jump detection switch can be detached from the upper end of the vertical fixing plate, and the detection end of the comb teeth jump detection switch is abutted against the side face of the switch beating plate.
5. The device for detecting abnormal actions of comb teeth according to claim 1, wherein the comb teeth backward detection switch is fixed on the horizontal fixing plate through bolts and screw plates, the comb teeth backward detection switch can be detached from the front end of the horizontal fixing plate, and the detection end of the comb teeth backward detection switch is abutted against the side face of the switch beating plate.
6. The device for detecting abnormal comb motions in real time according to claim 1, wherein the first end of the detecting rod is rotatably fixed to the side edge of the comb plate by means of a second bolt assembly.
7. The device for detecting abnormal comb teeth movements in real time according to claim 6, wherein the second bolt assembly comprises a second bolt and a second sleeve, the second bolt penetrates through the detecting rod to be connected with the side edge of the comb teeth plate, and the second sleeve is sleeved on the second bolt and is positioned between the detecting rod and the side edge of the comb teeth plate and is respectively contacted with the detecting rod and the side edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009211.6A CN108861988B (en) | 2018-08-31 | 2018-08-31 | Real-time detection device for abnormal actions of comb teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009211.6A CN108861988B (en) | 2018-08-31 | 2018-08-31 | Real-time detection device for abnormal actions of comb teeth |
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| Publication Number | Publication Date |
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| CN108861988A CN108861988A (en) | 2018-11-23 |
| CN108861988B true CN108861988B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811009211.6A Active CN108861988B (en) | 2018-08-31 | 2018-08-31 | Real-time detection device for abnormal actions of comb teeth |
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| CN (1) | CN108861988B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111924696A (en) * | 2020-09-04 | 2020-11-13 | 苏州新达电扶梯部件有限公司 | Anti-lifting device for front edge plate of escalator |
| CN113860130B (en) * | 2021-10-14 | 2024-06-04 | 巨人通力电梯有限公司 | Positioning system is connected to broach backup pad |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229898A (en) * | 2008-02-03 | 2008-07-30 | 苏州江南嘉捷电梯股份有限公司 | Safety device for comb pedal |
| CN204038841U (en) * | 2014-07-01 | 2014-12-24 | 西尼电梯(杭州)有限公司 | A kind of escalator and moving sidewalk fishback fender guard |
| CN208883267U (en) * | 2018-08-31 | 2019-05-21 | 苏州江南嘉捷电梯有限公司 | A kind of comb teeth abnormal operation real-time detection apparatus |
-
2018
- 2018-08-31 CN CN201811009211.6A patent/CN108861988B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229898A (en) * | 2008-02-03 | 2008-07-30 | 苏州江南嘉捷电梯股份有限公司 | Safety device for comb pedal |
| CN204038841U (en) * | 2014-07-01 | 2014-12-24 | 西尼电梯(杭州)有限公司 | A kind of escalator and moving sidewalk fishback fender guard |
| CN208883267U (en) * | 2018-08-31 | 2019-05-21 | 苏州江南嘉捷电梯有限公司 | A kind of comb teeth abnormal operation real-time detection apparatus |
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| CN108861988A (en) | 2018-11-23 |
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