CN115321296A - Elevator 125% load brake performance comprehensive detector - Google Patents
Elevator 125% load brake performance comprehensive detector Download PDFInfo
- Publication number
- CN115321296A CN115321296A CN202210980358.XA CN202210980358A CN115321296A CN 115321296 A CN115321296 A CN 115321296A CN 202210980358 A CN202210980358 A CN 202210980358A CN 115321296 A CN115321296 A CN 115321296A
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- elevator
- rod
- detector
- rotating shaft
- supporting plate
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- 238000001514 detection method Methods 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 239000011435 rock Substances 0.000 abstract 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to the technical field of elevator detection, in particular to a 125% load brake performance comprehensive detector for an elevator. The comprehensive detector comprises a supporting component, a lifting mechanism and a detection mechanism; the supporting component comprises a supporting plate and two limiting rods; the lifting mechanism comprises two groups of lifting components; the lifting assembly comprises a rotating shaft and a hinge rod; the two rotating shafts can rotate in opposite directions; the rotating shaft is rotatably connected with the supporting plate; the hinge rod is sleeved on the rotating shaft and is hinged with the limiting rod; the detection mechanism comprises two detectors which can be close to or far away from each other; the detector is connected with the corresponding hinged end; an accommodating space is arranged between the detection wheels of the two detectors. This synthesize detector can satisfy and carry out speed detection to wire rope difference altitude point, different positions, and the detection height scope is wider, and it is very convenient to operate, still can satisfy simultaneously to carry out speed detection to different wire rope, need not handheld, avoids the hand to rock, and the start detects more accurate of data that acquire, and is efficient, labour saving and time saving.
Description
Technical Field
The invention relates to the technical field of elevator detection, in particular to a 125% load brake performance comprehensive detector for an elevator.
Background
The brake is an important safety device of the elevator, and the safety and the reliability of the brake are one of important factors for ensuring the safe operation of the elevator. The brake functions as follows: the elevator can automatically stop the elevator car when the power supply is cut off; when the elevator stops, the brake can ensure that the elevator car keeps still and the position is unchanged under the condition of 125 percent of rated load.
An elevator brake detector is a device capable of detecting whether the elevator brake capacity is qualified or not. The existing elevator brake detector consists of an equipment acquisition and detection handheld terminal and a front-end rotating wheel. During detection, the front-end rotating wheel is rotated to be close to the steel wire rope, and the steel wire rope drives the front-end rotating wheel to rotate. And when the elevator reaches the rated elevator speed, an electric propulsion braking signal is sent out, the travel distance of the steel wire rope is measured, and after the elevator stops, a detection result is displayed and recorded.
Current elevator braking detector needs operating personnel to keep always holding in the use, thereby easy tired takes place the hand and trembles the circumstances such as, and once can only detect the ladder speed of a position point, and the detection of too high or low position is all very inconvenient, wastes time and energy and measuring result is accurate inadequately.
Disclosure of Invention
The invention aims to provide a 125% load brake performance comprehensive detector for an elevator, which can be used for detecting the speed of different height points of a steel wire rope and the different positions of the same height point of the steel wire rope, has the advantages of wide detection height range, convenient operation, capability of simultaneously detecting the speed of different steel wire ropes, no need of holding by hands, no hand shaking, manpower reduction, more and more data acquired by one-time starting detection, high efficiency, time saving and labor saving.
In order to achieve the above object, the preferred solution adopted by the present invention is:
a125% load brake performance comprehensive detector of an elevator comprises a supporting component, a lifting mechanism and a detection mechanism; the supporting component comprises a supporting plate and two limiting rods symmetrically arranged on two sides of the supporting plate; the lifting mechanism comprises two groups of symmetrically arranged lifting components; the lifting assembly comprises a rotating shaft and a hinge rod; the lifting component is arranged above the supporting plate; the two rotating shafts can rotate in opposite directions; the axial leads of the two rotating shafts are arranged in parallel; the rotating shaft is rotatably connected with the supporting plate; the length direction of the limiting rod is vertical to the length direction of the rotating shaft; one end of the hinged rod is sleeved on the rotating shaft, and the other end of the hinged rod is hinged with the limiting rod as a hinged end and can slide along the length direction of the limiting rod; the detection mechanism comprises two detectors which can be close to or far away from each other; the detector is connected with the corresponding hinged end; the detection wheels of the two detectors are symmetrically arranged, and an accommodating space for accommodating the steel wire rope is arranged between the two detection wheels.
Further, in a preferred embodiment of the present invention, the limiting rod is provided with a first sliding hole, and the first sliding hole extends along the length direction of the limiting rod; the hinged end penetrates through the first sliding hole and is connected with the inner wall of the first sliding hole in a sliding mode.
Further, in a preferred embodiment of the present invention, the limiting rod is provided with a pulley; the hinged end is provided with a second sliding hole; the second sliding hole extends along the length direction of the rotating shaft; the pulley is connected with the inner wall of the first sliding hole and the inner wall of the second sliding hole in a sliding mode.
Further, in a preferred embodiment of the present invention, the limiting rod is further provided with a sliding shaft; the pulley is sleeved on the sliding shaft; two ends of the sliding shaft are respectively connected with the inner wall of the first sliding hole in a sliding way.
Further, in a preferred embodiment of the present invention, the detecting mechanism further includes two connecting rods; one end of the connecting rod is connected with the sliding shaft, and the length direction of the connecting rod is perpendicular to the length direction of the limiting rod; the detector is connected to the corresponding connecting rod in a sliding manner along the length direction of the connecting rod.
Further, in a preferred embodiment of the present invention, the connecting rod is provided with a third sliding hole; the third sliding hole extends along the length direction of the connecting rod; the connecting rod is provided with a bolt; the detector is concavely provided with an internal thread; the bolt penetrates through the third sliding hole and can be in threaded connection with the detector.
Further, in a preferred embodiment of the present invention, the lifting mechanism further comprises a motor and a screw rod; the lifting assembly further comprises a gear; the motor is arranged below the supporting plate, and the screw rod is arranged above the supporting plate; a rotating shaft of the motor penetrates through the supporting plate and is connected with the screw rod; the gear is sleeved on the rotating shaft; the axial lead direction of the rotating shaft is vertical to the axial lead direction of the screw rod; the screw rod is arranged between the two gears and meshed with the gears.
Further, in the preferred embodiment of the present invention, the two detectors are oriented in opposite directions.
Further, in a preferred embodiment of the present invention, the lifting assembly further includes a first supporting member and a second supporting member disposed on the supporting plate; one end of the rotating shaft penetrates through the first supporting piece, and the other end of the rotating shaft penetrates through the second supporting piece; the gear is close to first support piece setting, and the articulated mast is close to second support piece setting.
Furthermore, in a preferred embodiment of the present invention, the supporting assembly further includes two supporting rods connected to the supporting plate and symmetrically disposed at two ends of the supporting plate.
The comprehensive detector for the 125% load brake performance of the elevator, provided by the invention, has the beneficial effects that:
(1) The 125% load brake performance comprehensive detector for the elevator, provided by the invention, is not required to be held by hands, avoids hand shaking, reduces manpower, can automatically adjust the detection height of the detector according to a required detection position point, is simple to operate, wide in detection height range, accurate in detection result, high in efficiency, time-saving and labor-saving.
(2) The comprehensive detector for 125% load brake performance of the elevator can simultaneously detect the circularly symmetrical positions of one steel wire rope at the same height, can obtain two detection data at the same position at one time, and avoids operation errors.
(3) The 125% load brake performance comprehensive detector for the elevator, provided by the invention, can adjust the distance of the detector, can detect the same height position of two steel wire ropes at the same time, is simple to operate, has more detection data and better reference.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a left side view of a 125% load brake performance comprehensive detector for an elevator according to an embodiment of the present invention, when a steel wire rope is not detected;
fig. 2 is a front view of the elevator 125% load brake performance comprehensive detector provided by the embodiment of the invention when the steel wire rope is not detected;
fig. 3 is a front view of the elevator 125% load brake performance comprehensive detector provided by the embodiment of the invention when detecting a steel wire rope;
fig. 4 is a top view of the comprehensive detector for 125% load braking performance of an elevator according to the embodiment of the present invention, which detects a plurality of steel wire ropes simultaneously;
fig. 5 is a top view of the comprehensive detector for 125% load braking performance of an elevator according to the embodiment of the present invention, which detects one steel wire rope;
FIG. 6 is a schematic cross-sectional view of a stop bar coupled to a hinge rod according to an embodiment of the present invention;
an icon: 10-125% load brake performance comprehensive detector for an elevator, 20-steel wire rope, 110-supporting plate, 120-limiting rod, 130-supporting rod, 210-motor, 220-screw rod, 230-rotating shaft, 240-hinged rod, 250-gear, 260-first supporting piece, 270-second supporting piece, 121-first sliding hole, 122-pulley, 123-sliding shaft, 241-hinged end, 242-second sliding hole, 310-detector, 320-connecting rod, 321-third sliding hole, 322-bolt and 400-accommodating space.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Example 1
The invention is further described below with reference to the accompanying figures 1-6:
the invention provides an elevator 125% load brake performance comprehensive detector 10 which comprises a supporting component (not marked in the figure), a lifting mechanism (not marked in the figure) and a detecting mechanism (not marked in the figure).
The support assembly includes a support plate 110 and two limiting rods 120 symmetrically disposed on two sides of the support plate 110, and two support rods 130 connected to the support plate 110 and symmetrically disposed on two ends of the support plate 110. The limiting rod 120 is disposed at the front side of the supporting plate 110, and the supporting rod 130 is disposed at the rear side of the supporting plate 110. To further stabilize the bearing force of the support plate 110.
In this embodiment, the lifting mechanism includes a motor 210, a screw 220, and two sets of symmetrically disposed lifting assemblies (not labeled in the figure). Wherein, the lifting assembly comprises a rotation shaft 230, a hinge rod 240, a gear 250, a first support 260 and a second support 270 provided to the support plate 110.
In the present embodiment, the arrangement positional relationship of the components of the elevating mechanism is as follows: the motor 210 is disposed below the supporting plate 110, the screw rod 220 is disposed above the supporting plate 110, and a rotating shaft of the motor 210 penetrates through the supporting plate 110 and is connected to the screw rod 220. The gear 250 is sleeved on the rotating shafts 230, the screw rod 220 is arranged between the two gears 250 and meshed with the gears 250, the axial lines of the two rotating shafts 230 are arranged in parallel, and the axial line direction of the rotating shafts 230 is perpendicular to the axial line direction of the screw rod 220.
When the motor 210 is turned on, the rotating shaft of the motor 210 drives the screw rod 220 to rotate, and the screw rod 220 drives the two gears 250 to rotate in opposite directions, so as to drive the two rotating shafts 230 to rotate in opposite directions.
In this embodiment, one end of the rotating shaft 230 penetrates through the first supporting member 260, and the other end penetrates through the second supporting member 270, so that the rotating shaft 230 and the supporting plate 110 are rotatably connected.
In this embodiment, the gear 250 is disposed adjacent to the first support 260, and the hinge lever 240 is disposed adjacent to the second support 270. One end of the hinge rod 240 is sleeved on the rotation shaft 230, and the other end is hinged to the limiting rod 120 as a hinge end 241 and can slide along the length direction of the limiting rod 120. Wherein, the length direction of the limiting rod 120 is perpendicular to the length direction of the rotating shaft 230.
The hinge rod 240 is hinged to the stopper rod 120 as follows: in the embodiment, the limiting rod 120 is provided with a first sliding hole 121, and the first sliding hole 121 extends along the length direction of the limiting rod 120. The stopper rod 120 is provided with a pulley 122 and a sliding shaft 123. The hinge end 241 penetrates the first sliding hole 121. The hinge end 241 of the hinge rod 240 is formed with a second sliding hole 242, and the second sliding hole 242 extends along the length direction of the rotation shaft 230. In this embodiment, the pulley 122 is sleeved on the sliding shaft 123, and two ends of the sliding shaft 123 are slidably connected to an inner wall (not labeled) of the first sliding hole 121, respectively. The pulley 122 is also slidably connected to an inner wall (not shown) of the first sliding hole 121.
The above-mentioned hinge connection between the hinge rod 240 and the limiting rod 120 enables the two hinge rods 240 to move up and down along the two first sliding holes 121 respectively under the driving of the rotating forces of the two rotating shafts 230.
In this embodiment, the detecting mechanism includes two detectors 310 and two connecting rods 320 that can be close to or far from each other. One end of the connecting rod 320 is connected to the corresponding sliding shaft 123, and the length direction of the connecting rod 320 is perpendicular to the length direction of the limiting rod 120. The connecting rod 320 is provided with a third sliding hole 321, and the third sliding hole 321 extends along the length direction of the connecting rod 320. In this embodiment, the detecting device 310 is slidably connected to the corresponding connecting bar 320 along the length direction of the connecting bar 320. Specifically, the connecting rod 320 is provided with a bolt 322, the monitor 310 is concavely provided with an internal thread (not labeled in the figure), and the bolt 322 can penetrate through the third sliding hole 321 to be in threaded connection with the monitor 310, so that the bolt can be used for fastening and loosening the monitor 310.
In this embodiment, the detection wheels of the two detectors 310 are symmetrically arranged, an accommodating space 400 for accommodating the steel wire rope is provided between the two detection wheels, and the two detectors 310 are opposite in direction.
The using method of the 125% load brake performance comprehensive detector 10 for the elevator provided by the embodiment is as follows: the motor 210 is turned on, the motor 210 drives the screw rod 220 to rotate, the screw rod 220 drives the two gears 250 to rotate in opposite directions, so as to drive the respective rotating shafts 230 to rotate in opposite directions, the rotating shafts 230 drive one ends of the hinge rods 240 to rotate, and the other ends of the hinge rods 240 slide up and down in the first sliding holes 121 of the limiting rods 120 to the height position to be measured. The structure is arranged, so that the two hinge rods 240 can be driven to move simultaneously, and the detection height range is wider. Articulated rod 240 is arranged in the height position that awaits measuring, and sliding shaft 123 also is located the height position that awaits measuring, and connecting rod 320 also is located the height that awaits measuring, and the position of two detectors 310 is adjusted according to the diameter size of the wire rope that will detect this moment to it has enough accommodation space 400 to be used for holding one or more wire rope to detect to make between two detection wheels.
In summary, the 125% load brake performance comprehensive detector 10 for the elevator provided by this embodiment can meet the requirements of performing speed detection on different height points of the steel wire rope and detecting different positions of the same height point of the steel wire rope, has a wide detection height range and very convenient operation, can also meet the requirements of performing speed detection on different steel wire ropes simultaneously, does not need to be held by hands, avoids shaking hands, reduces manpower, and detects more and more accurate data obtained by one-time starting, and is efficient, time-saving and labor-saving.
The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an elevator 125% load brake performance comprehensive testing appearance which characterized in that: comprises a supporting component, a lifting mechanism and a detection mechanism; the supporting component comprises a supporting plate and two limiting rods symmetrically arranged on two sides of the supporting plate; the lifting mechanism comprises two groups of symmetrically arranged lifting components; the lifting assembly comprises a rotating shaft and a hinge rod;
the lifting assembly is arranged above the supporting plate; the two rotating shafts can rotate in opposite directions; the axial leads of the two rotating shafts are arranged in parallel; the rotating shaft is rotatably connected with the supporting plate; the length direction of the limiting rod is perpendicular to the length direction of the rotating shaft; one end of the hinged rod is sleeved on the rotating shaft, and the other end of the hinged rod is hinged with the limiting rod as a hinged end and can slide along the length direction of the limiting rod;
the detection mechanism comprises two detectors which can be close to or far away from each other; the detectors are connected with the corresponding hinged ends; the two detection wheels of the detector are symmetrically arranged, and an accommodating space for accommodating the steel wire rope is arranged between the two detection wheels.
2. The elevator 125% load brake performance comprehensive detector of claim 1, characterized in that: the limiting rod is provided with a first sliding hole, and the first sliding hole extends along the length direction of the limiting rod; the hinged end penetrates through the first sliding hole and is connected with the inner wall of the first sliding hole in a sliding mode.
3. The elevator 125% load brake performance comprehensive detector of claim 2, characterized in that: the limiting rod is provided with a pulley; the hinged end is provided with a second sliding hole; the second sliding hole extends along the length direction of the rotating shaft; the pulley is connected to the inner wall of the first sliding hole and the inner wall of the second sliding hole in a sliding mode.
4. The elevator 125% load brake performance comprehensive detector of claim 3, characterized in that: the limiting rod is also provided with a sliding shaft; the pulley is sleeved on the sliding shaft; and two ends of the sliding shaft are respectively connected with the inner wall of the first sliding hole in a sliding manner.
5. The elevator 125% load brake performance comprehensive detector of claim 4, characterized in that: the detection mechanism also comprises two connecting rods; one end of the connecting rod is connected with the sliding shaft, and the length direction of the connecting rod is perpendicular to the length direction of the limiting rod; the detector is connected to the corresponding connecting rod in a sliding manner along the length direction of the connecting rod.
6. The comprehensive detector for 125% load brake performance of elevator according to claim 5, characterized in that: the connecting rod is provided with a third sliding hole; the third sliding hole extends along the length direction of the connecting rod; the connecting rod is provided with a bolt; the detector is concavely provided with an internal thread; the bolt penetrates through the third sliding hole and can be in threaded connection with the detector.
7. The elevator 125% load brake performance comprehensive detector of claim 1, characterized in that: the lifting mechanism further comprises a motor and a screw rod; the lifting assembly further comprises a gear; the motor is arranged below the supporting plate, and the screw rod is arranged above the supporting plate; a rotating shaft of the motor penetrates through the supporting plate and is connected with the screw rod; the gear is sleeved on the rotating shaft; the axis direction of the rotating shaft is perpendicular to the axis direction of the screw rod; the screw rod is arranged between the two gears and meshed with the gears.
8. The comprehensive detector for 125% load brake performance of elevator according to claim 1, characterized in that: the two detectors are oppositely oriented.
9. The comprehensive detector for 125% load brake performance of elevator according to claim 7, characterized in that: the lifting assembly further comprises a first supporting piece and a second supporting piece which are arranged on the supporting plate; one end of the rotating shaft penetrates through the first supporting piece, and the other end of the rotating shaft penetrates through the second supporting piece; the gear is close to the first support piece, and the articulated rod is close to the second support piece.
10. The elevator 125% load brake performance comprehensive detector of claim 1, characterized in that: the supporting component also comprises two supporting rods which are connected with the supporting plate and symmetrically arranged at the two ends of the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980358.XA CN115321296A (en) | 2022-08-16 | 2022-08-16 | Elevator 125% load brake performance comprehensive detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980358.XA CN115321296A (en) | 2022-08-16 | 2022-08-16 | Elevator 125% load brake performance comprehensive detector |
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| Publication Number | Publication Date |
|---|---|
| CN115321296A true CN115321296A (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210980358.XA Pending CN115321296A (en) | 2022-08-16 | 2022-08-16 | Elevator 125% load brake performance comprehensive detector |
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| Country | Link |
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| CN (1) | CN115321296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116819396A (en) * | 2023-08-30 | 2023-09-29 | 沈阳涵兮科技有限公司 | Insulation device applied to electric power field for preventing ground fault |
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| CN102494828A (en) * | 2011-11-24 | 2012-06-13 | 中国矿业大学 | Longitudinal capacitive steel wire rope tension detection method and apparatus thereof |
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| CN105698879A (en) * | 2016-04-08 | 2016-06-22 | 大唐彬长发电有限责任公司 | Multi-measuring point flow measurement device |
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| CN211946120U (en) * | 2020-04-20 | 2020-11-17 | 李娜 | Raw material lifting device for building engineering |
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| CN214037561U (en) * | 2020-12-31 | 2021-08-24 | 吉林省经济管理干部学院 | Portable fixed bolster of computer office |
| CN214789977U (en) * | 2021-04-08 | 2021-11-19 | 六安鑫源米业集团有限公司 | Grain product storage humidity detection device |
| CN216686999U (en) * | 2022-01-12 | 2022-06-07 | 涂前 | Elevator braking detection device |
| CN216692773U (en) * | 2021-12-03 | 2022-06-07 | 云南中科检测技术有限公司 | Noise monitoring device for environmental monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100976612B1 (en) * | 2009-06-16 | 2010-08-17 | (재)한국승강기안전기술원 | A device of checking a brake performance for elevator and a method of using the same |
| CN103086220A (en) * | 2011-10-28 | 2013-05-08 | 株式会社日立制作所 | Speed detection device for elevator |
| CN102494828A (en) * | 2011-11-24 | 2012-06-13 | 中国矿业大学 | Longitudinal capacitive steel wire rope tension detection method and apparatus thereof |
| CN105698879A (en) * | 2016-04-08 | 2016-06-22 | 大唐彬长发电有限责任公司 | Multi-measuring point flow measurement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116819396A (en) * | 2023-08-30 | 2023-09-29 | 沈阳涵兮科技有限公司 | Insulation device applied to electric power field for preventing ground fault |
| CN116819396B (en) * | 2023-08-30 | 2023-11-14 | 沈阳涵兮科技有限公司 | Insulation device applied to electric power field for preventing ground fault |
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