CN216207490U - Rope breakage detection device - Google Patents
Rope breakage detection device Download PDFInfo
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- CN216207490U CN216207490U CN202122543985.0U CN202122543985U CN216207490U CN 216207490 U CN216207490 U CN 216207490U CN 202122543985 U CN202122543985 U CN 202122543985U CN 216207490 U CN216207490 U CN 216207490U
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- 238000001514 detection method Methods 0.000 title claims abstract description 109
- 239000002184 metal Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000002861 polymer material Substances 0.000 description 1
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Abstract
The utility model relates to the field of machinery, in particular to a rope breakage detection device. The rope breakage detection device comprises a first transverse plate, a second transverse plate, an adjusting bolt, a detection rope and an inductor. Wherein, be provided with two screw holes in the first diaphragm. The second diaphragm is the insulation board and is provided with two through-holes. The adjusting bolt is arranged in the threaded hole. The number of the detection ropes is two; one end of the detection rope is rotatably connected to one end, close to the second transverse plate, of the adjusting bolt; the other end of the detection rope penetrates through the through hole in the second transverse plate. The detection rope is sleeved with a conducting ring, and the conducting ring is positioned on the detection rope and close to the through hole; the outer diameter of the conducting ring is smaller than the aperture of the through hole. The inductor includes a first conductive contact and a second conductive contact. The sensor forms an equivalent switch, and the switch state of the sensor is used for representing whether the detection rope is loosened or broken. The utility model overcomes the defects of high cost and insufficient reliability of the conventional rope breakage detection device.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a rope breakage detection device.
Background
A conventional car elevator controls the raising and lowering of the car of the elevator by means of cables, the number of which is typically two. Therefore, when any one of the two cables is loosened or broken, although the elevator can still be operated, a safety risk is easily generated, resulting in unstable or free fall of the car. Therefore, the elevator control usually has a rope breakage detecting device for the cable to detect the cable, so as to ensure that the cable is not loosened or broken.
The conventional broken rope detection device is complex in structure, and a series of sensors are required to be used for detecting the tension and the like of the cable rope, so that the cost of the broken rope detection device is increased; also various sensors may have reliability drawbacks.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a rope breakage detection device for solving the problems of high cost and insufficient reliability of the conventional rope breakage detection device used in the elevator.
The utility model provides a broken rope detection device which comprises a first transverse plate, a second transverse plate, an adjusting bolt, a detection rope and an inductor.
Wherein, the interval is provided with two screw holes perpendicular to the board body in the first diaphragm.
The second diaphragm is the insulation board. The second transverse plate is arranged in parallel with the first transverse plate; two through holes are arranged in the second transverse plate. The through hole corresponds to the threaded hole in position, and the connecting line direction of the threaded hole and the through hole is perpendicular to the first transverse plate or the second transverse plate.
The number of adjusting bolt is two, and two adjusting bolt threaded connection are in two threaded hole of first diaphragm respectively.
The number of the detection ropes is two; one end of the detection rope is respectively and rotatably connected to one end, close to the second transverse plate, of the adjusting bolt; the other end of the detection rope respectively penetrates through the through holes in the second transverse plate. The part of the detection rope in the middle of the first transverse plate and the second transverse plate is provided with a breakpoint, and the two breakpoints of the detection rope are fixedly connected through an elastic piece. The elastic component can stretch out and draw back along the extension direction of the detection rope, and the outer diameter of the elastic component is larger than the aperture of the threaded hole. The detection rope is sleeved with a conducting ring, and the conducting ring is positioned on the detection rope and close to the through hole; the outer diameter of the conducting ring is smaller than the aperture of the through hole.
The inductor includes a first conductive contact and a second conductive contact. The first conductive contacts include a first left contact and a first right contact, and the second conductive contacts include a second left contact and a second right contact. The first left contact piece and the first right contact piece are symmetrically arranged on the inner side of one through hole, and the first left contact piece and the first right contact piece are not in contact. The second left contact piece and the second right contact piece are symmetrically arranged on the inner side of the other through hole and are not in contact with each other.
As a further improvement of the utility model, one end of the detection rope passing through the second transverse plate is fixedly provided with a cable connecting piece.
As a further improvement of the utility model, a connecting ring is arranged at one end of the adjusting bolt connected with the detection rope, the connecting ring is rotatably connected with the adjusting bolt, and the detection rope is fixed on the connecting ring.
As a further improvement of the utility model, the sensor is electrically connected with a signal transceiver, the signal output end of the signal transceiver is electrically connected with the first left contact piece, and the signal input end of the signal transceiver is electrically connected with the second right contact piece. The signal output end sends out a pulse signal and receives the pulse signal through the signal input end. When the signal output end sends out a pulse signal and the signal input end does not receive the corresponding pulse signal within the specified time, at least one of the two detection ropes is judged to be loosened or broken.
As a further improvement of the utility model, the inductor is also connected with an alarm which is provided with a driving circuit. The driving circuit is used for controlling the alarm to be silent when the inductor is in a conducting state and to ring when the inductor is in a disconnecting state.
As a further improvement of the utility model, the elastic member is a cylindrical spring.
As a further improvement of the utility model, the detection rope is an integrated rope without a breakpoint; the detection rope is fixed with a baffle plate and is also sleeved with a cylindrical spring. The baffle plate is positioned between the first transverse plate and the second transverse plate; two ends of the cylindrical spring are fixedly connected to the baffle plate and the first transverse plate.
As a further improvement of the utility model, the first transverse plate is a metal plate.
As a further improvement of the utility model, the detection rope is an insulating rope.
As a further improvement of the utility model, one end of the adjusting bolt far away from the detection rope is provided with a detachable rotating handle.
The utility model has the following beneficial effects:
the rope breakage detection device provided by the utility model can effectively detect whether the elevator cable is in a loose or broken state, and the device can effectively detect the tensioning state of the cable when any cable has a problem. The sensitivity is very high. And because conventional sensors such as a photoelectric sensor, a tension sensor, a Hall element and the like are not used in the device, the tension state of the cable is represented by only four metal contact pieces (equivalent switches), and the reliability is higher. The service life is longer, and the cost is lower.
In addition, most of the traditional broken rope detection ropes rely on a lever principle to realize detection, so that the intelligent detection rope is intelligently applicable to the state of two cables.
Drawings
Fig. 1 is a schematic structural diagram of a rope breakage detection device according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of the first cross plate and the second cross plate in embodiment 1 of the present invention.
Fig. 3 is an assembly schematic view of components of the rope breakage detecting device according to embodiment 1 of the present invention, except for the second cross plate.
Fig. 4 is a top view of the second cross plate in embodiment 1 of the utility model.
Fig. 5 is a schematic longitudinal sectional view of the through hole of the second cross plate in embodiment 1 of the present invention.
Fig. 6 is a schematic structural diagram of a rope breakage detection device in embodiment 2 of the present invention.
Fig. 7 is an assembly schematic diagram of components of the rope breakage detecting device in embodiment 2 of the utility model except for the second cross plate.
Reference numerals: 1. a first transverse plate; 2. a second transverse plate; 3. adjusting the bolt; 4. detecting the rope; 5. an inductor; 11. a threaded hole; 21. a through hole; 41. elastic member 42, conductive ring; 43. a baffle plate; 44. a cylindrical spring; 51. a first left contact; 52. a first right contact blade; 53. a second left contact; 54. the second right contact piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Example 1
As shown in fig. 1, the present invention provides a broken rope detection device including a first cross plate 1, a second cross plate 2, an adjusting bolt 3, a detection rope 4, and a sensor 5.
As shown in fig. 2, two threaded holes 11 perpendicular to the plate body are provided at intervals in the first horizontal plate 1. The first horizontal plate 1 is a metal plate.
The second horizontal plate 2 is an insulating plate. The second transverse plate 2 is arranged in parallel with the first transverse plate 1; two through holes 21 are arranged in the second transverse plate 2. The through hole 21 corresponds to the threaded hole 11, and the connection line direction of the threaded hole 11 and the through hole 21 is perpendicular to the first transverse plate 1 or the second transverse plate 2.
The number of adjusting bolt 3 is two, and two adjusting bolt 3 threaded connection are in two screw holes 11 of first diaphragm 1 respectively.
As shown in fig. 3, the number of the detection ropes 4 is two; one end of the detection rope 4 is respectively and rotatably connected to one end, close to the second transverse plate 2, of the adjusting bolt 3; the other ends of the detection ropes 4 respectively penetrate through the through holes 21 on the second transverse plate 2. The part of the detection rope 4 located between the first transverse plate 1 and the second transverse plate 2 is provided with a breakpoint, and the two breakpoints of the detection rope 4 are fixedly connected through an elastic piece 41. The elastic member 41 is a spring. The elastic member 41 is stretchable along the extending direction of the detection string 4, and the outer diameter of the elastic member 41 is larger than the diameter of the threaded hole 11. The detection rope 4 is sleeved with a conducting ring 42, and the conducting ring 42 is positioned on the detection rope 4 and close to the through hole 21; the conductive ring 42 has an outer diameter smaller than the aperture of the through-hole 21. Wherein, the detection rope 4 is an insulating rope and is prepared by adopting a high polymer material.
As shown in fig. 4 and 5, the inductor 5 includes a first conductive contact and a second conductive contact. The first conductive contacts comprise a first left contact 51 and a first right contact 52 and the second conductive contacts comprise a second left contact 53 and a second right contact 54. The first left contact piece 51 and the first right contact piece 52 are symmetrically installed inside one of the through holes 21, and the first left contact piece 51 and the first right contact piece 52 are not in contact. The second left contact piece 53 and the second right contact piece 54 are symmetrically installed inside the other through hole 21, and the second left contact piece 53 and the second right contact piece 54 do not contact.
When the conductive ring 42 enters the through hole 21, the first left contact piece 51 and the first right contact piece 52 are connected through the conductive ring 42; the second left contact plate 53 and the second right contact plate 54 are connected by the conductive ring 42. The sensor 5 constitutes an equivalent switch, and the switch state of the sensor 5 is used for representing whether the detection rope 4 is loosened or broken:
(1) when the inductor 5 is in a closed state, the detection rope 4 is characterized to be not loosened or broken;
(2) when the sensor 5 is in an open circuit state, it indicates that the detection rope 4 is slack or broken.
In the utility model, one end of the detection rope 4 passing through the second transverse plate 2 is fixedly provided with a cable connecting piece.
The function and the using method of the rope breakage detection device provided by the embodiment are as follows:
in use, the cables of the elevator are fixed to the cable attachments, respectively. And the first transverse plate 1 and the second transverse plate 2 are fixedly connected to a mounting plate of the traction machine. At this time, the detection string 4 is in a tensioned state.
In the initialization state, the height of the detection rope 4 can be adjusted by rotating the adjusting bolt 3, so that the conductive ring 42 on the detection rope 4 is just inserted into the through hole 21 in the second horizontal plate 2. At this time, the conducting ring 42 connected to one of the detecting ropes 4 is in contact with the first left contact piece 51 and the first right contact piece 52; the conductive ring 42 of the other detection rope 4 is in contact with the second left contact piece 53 and the second right contact piece 54. Considering that the first right contact 52 and the second left contact 53 are connected by a wire, the first left contact 51 and the second right contact 54 are actually in a conductive state, i.e., the inductor 5 is conductive. Therefore, the two cables can be judged to be in a state of being tightened and not broken at the moment.
In the initial state, the first elastic member 41 is in a slightly extended state. The first elastic member 41 has three functions in the present embodiment: (1) the tension state of the detection rope 4 is kept, and the tension on the detection rope 4 is buffered, so that the detection rope 4 is prevented from being broken; (2) the telescopic height of the detection rope 4 is limited, so that the detection rope 4 is prevented from being excessively contracted, and the conducting ring 42 is moved to be above the first transverse plate 1; (3) in coordination with the adjusting bolt 3, the height of the conductive ring 42 is adjusted.
When any of the two cables is loosened or broken, the first elastic member 41 of the detection rope 4 connected to the cable is automatically contracted, and the detection rope 4 is pulled upward. When the detecting rope 4 moves upward, the conducting ring 42 connected to it will be separated from the through hole 21 in the second horizontal plate 2, resulting in the conducting ring 42 being separated from the corresponding conducting contact, and at this time, the whole sensor 5 is in an open circuit state. Therefore, at least one of the two cables can be judged to be in a loose or broken state at the moment, a corresponding alarm is sent out, and the elevator is stopped and overhauled.
In the embodiment, the length of the conductive ring 42 can be adjusted according to actual needs, and the optimal length of the conductive ring 42 should meet the requirement that the conduction state of the inductor 5 should remain stable when slight difference occurs between the tensions of the two cables; a disconnected state of the sensor 5 occurs only when a large difference in tension occurs between the two cables. To achieve this technical effect, in the present embodiment, the length of the conductive ring 42 is slightly greater than the thickness of the second horizontal plate 2.
When the adjusting bolt 3 rotates in the threaded hole 11 of the first cross plate 1, the height of the adjusting bolt 3 changes along with the rotation, and the height of the conductive ring 42 is adjusted. One end of the adjusting bolt 3, which is far away from the detection rope 4, is provided with a detachable rotating handle.
In order to prevent the detection rope 4 from twisting off along with the rotation of the adjusting bolt 3, a connection ring is arranged at one end of the adjusting bolt 3 connected with the detection rope 4, the connection ring is rotatably connected with the adjusting bolt 3, and the detection rope 4 is fixed on the connection ring.
In order to facilitate the rotation adjustment of the adjusting bolt 3, in the embodiment, a handle mounting hole perpendicular to the bolt body is formed in the adjusting bolt 3. The handle and the adjusting bolt 3 can form a T-shaped structure by inserting the handle into the handle mounting hole; the handle is turned to complete the adjustment of the adjusting bolt 3.
In addition, in other embodiments, the top of the adjusting bolt 3 may be provided with a nut or a hexagon socket, so that the adjusting bolt 3 can be turned by a corresponding wrench.
In the utility model, the sensor 5 is also electrically connected with a signal transceiver, the signal output end of the signal transceiver is electrically connected with the first left contact piece 51, and the signal input end of the signal transceiver is electrically connected with the second right contact piece 54. The signal output end sends out a pulse signal and receives the pulse signal through the signal input end. When the signal output end sends out a pulse signal and the signal input end does not receive the corresponding pulse signal within the specified time, at least one of the two detection ropes 4 is judged to be loosened or broken.
Example 2
The present embodiment provides a rope breakage detecting device, and the technical solution of the present embodiment is different from that of embodiment 1 in that: as shown in fig. 5 and 6, the detection string 4 in the present embodiment is an integrated string without a break point. The detection rope 4 is fixed with a baffle 43, and the detection rope 4 is also sleeved with a cylindrical spring 44. The baffle 43 is positioned between the first transverse plate 1 and the second transverse plate 2; the two ends of the cylindrical spring 44 are fixedly connected to the baffle 43 and the first cross plate 1.
The combination of the cylindrical spring 44 and the retainer 43 in this embodiment functions as the elastic member 41 in embodiment 1. In the present embodiment, however, the sensing rope 4 is directly coupled to the adjusting bolt 3. Therefore, the detection rope 4 has higher rigidity and better connection strength and is not easy to break.
The cylindrical spring 44 in this embodiment is also different from embodiment 1 in that: in the initial state, the adjusting bolt 3 is adjusted downward, so that the detection rope 4 moves downward, and the cylindrical spring 44 is elongated. When any one cable connected with the two detection ropes 4 is loosened or broken, the tension on the detection ropes 4 disappears or is reduced; at this time, the cylindrical spring 44 will naturally contract, so that the upper conductive ring 42 of the detecting string 4 is disengaged from the through hole 21 of the second cross plate 2.
In this embodiment, the height of the conductive ring 42 on the detecting rope 4 can be directly changed by rotating the adjusting bolt 3. When the height adjustment process exceeds the limit, the cylinder spring 44 is elongated, and the stopper 43 is subjected to the elastic force of the cylinder spring 44. When the cylindrical spring 44 deforms to a certain degree, the height of the conducting ring 42 cannot be adjusted continuously by rotating the adjusting bolt 3; i.e. the cylindrical spring 44 acts as a limit.
In addition, in this embodiment, an alarm is connected to the sensor 5, and the alarm has a driving circuit. The drive circuit is used for controlling the alarm to be silent when the inductor 5 is in a conducting state and to sound when the inductor 5 is in a disconnecting state.
The alarm can timely send out a prompt to a manager to prompt related personnel to process the dangerous state of the elevator as soon as possible.
Example 3
The present embodiment provides a rope breakage detector. This example differs from example 1 or 2 in that:
the quantity of detection rope 4 and adjusting screw is a plurality of in this embodiment, and threaded hole 11 quantity is a plurality of on first diaphragm 1, and through-hole 21 quantity is a plurality of on second diaphragm 2, and conductive contact's quantity also is a plurality of. And the expansion is accomplished in the same manner as in example 1 or 2. The rope breakage detector can monitor the loosening or breakage condition of a plurality of cables at the same time.
The above-mentioned embodiments only express some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A rope breakage detection device is characterized by comprising:
the first transverse plate is internally provided with two threaded holes perpendicular to the plate body at intervals;
the second transverse plate is an insulating plate; the second transverse plate and the first transverse plate are arranged in parallel; two through holes are formed in the second transverse plate; the through hole corresponds to the threaded hole in position, and the connecting line direction of the threaded hole and the through hole is perpendicular to the first transverse plate or the second transverse plate;
the number of the adjusting bolts is two, and the two adjusting bolts are respectively in threaded connection with the two threaded holes of the first transverse plate;
the number of the detection ropes is two; one end of the detection rope is rotatably connected to one end, close to the second transverse plate, of the adjusting bolt respectively; the other end of the detection rope penetrates through the through holes in the second transverse plate respectively; the part of the detection rope, which is positioned between the first transverse plate and the second transverse plate, is provided with a breakpoint, and the two breakpoints of the detection rope are fixedly connected through an elastic piece; the elastic piece can stretch out and draw back along the extension direction of the detection rope, and the outer diameter of the elastic piece is larger than the aperture of the threaded hole; the detection rope is sleeved with a conducting ring, and the conducting ring is positioned on the detection rope and close to the through hole; the outer diameter of the conducting ring is smaller than the aperture of the through hole; and
an inductor comprising a first conductive contact and a second conductive contact; the first conductive contact piece comprises a first left contact piece and a first right contact piece, and the second conductive contact piece comprises a second left contact piece and a second right contact piece; the first left contact piece and the first right contact piece are symmetrically arranged on the inner side of one through hole, and the first left contact piece and the first right contact piece are not in contact; the second left contact piece and the second right contact piece are symmetrically arranged on the inner side of the other through hole and are not in contact with each other.
2. The rope breakage detection device according to claim 1, characterized in that: and one end of each of the two detection ropes, which penetrates through the second transverse plate, is fixedly provided with a cable connecting piece.
3. The rope breakage detection device according to claim 1, characterized in that: the detection device is characterized in that a connecting ring is arranged at one end of the adjusting bolt connected with the detection rope, the connecting ring is rotatably connected with the adjusting bolt, and the detection rope is fixed on the connecting ring.
4. The rope breakage detection device according to claim 3, characterized in that: the sensor is electrically connected with a signal transceiver, the signal output end of the signal transceiver is electrically connected with the first left contact piece, and the signal input end of the signal transceiver is electrically connected with the second right contact piece; the signal output end sends out a pulse signal and receives the pulse signal through the signal input end; when the signal output end sends out a pulse signal and the signal input end does not receive the corresponding pulse signal within the specified time, at least one of the two detection ropes is judged to be loosened or broken.
5. The rope breakage detection device according to claim 4, characterized in that: the sensor is also connected with an alarm which is provided with a driving circuit; the driving circuit is used for controlling the alarm to be silent when the inductor is in a conducting state and to ring when the inductor is in a disconnecting state.
6. The rope breakage detection device according to claim 1, characterized in that: the elastic piece is a cylindrical spring.
7. The rope breakage detection device according to claim 1, characterized in that: the detection rope is an integrated rope without a breakpoint; a baffle is fixed on the detection rope, and a cylindrical spring is sleeved on the detection rope; the baffle plate is positioned between the first transverse plate and the second transverse plate; and two ends of the cylindrical spring are fixedly connected to the baffle and the first transverse plate.
8. The rope breakage detection device according to claim 1, characterized in that: the first transverse plate is a metal plate.
9. The rope breakage detection device according to claim 1, characterized in that: the detection rope is an insulating rope.
10. The rope breakage detection device according to claim 1, characterized in that: and a detachable rotating handle is arranged at one end of the adjusting bolt far away from the detection rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543985.0U CN216207490U (en) | 2021-10-21 | 2021-10-21 | Rope breakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543985.0U CN216207490U (en) | 2021-10-21 | 2021-10-21 | Rope breakage detection device |
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| Publication Number | Publication Date |
|---|---|
| CN216207490U true CN216207490U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122543985.0U Expired - Fee Related CN216207490U (en) | 2021-10-21 | 2021-10-21 | Rope breakage detection device |
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| CN (1) | CN216207490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180468A (en) * | 2022-09-09 | 2022-10-14 | 广州市科锐达光电技术股份有限公司 | Ultrathin planar anti-theft wire winding box |
-
2021
- 2021-10-21 CN CN202122543985.0U patent/CN216207490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180468A (en) * | 2022-09-09 | 2022-10-14 | 广州市科锐达光电技术股份有限公司 | Ultrathin planar anti-theft wire winding box |
| CN115180468B (en) * | 2022-09-09 | 2022-12-06 | 广州市科锐达光电技术股份有限公司 | Ultrathin planar anti-theft wire winding box |
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Granted publication date: 20220405 |