Elevator speed detection device

Abstract

The invention relates to the technical field of elevator detection, and provides an elevator speed detection device which comprises a plurality of positioning pieces which are used for being detachably arranged in an elevator shaft at intervals after ascending and descending along with a center console; each positioning piece is provided with a distance measuring assembly, and the distance measuring assembly is used for measuring the vertical distance between two adjacent positioning pieces; the moving part is used for carrying the positioning part to move, and the positioning part is arranged in the elevator shaft or detached from the elevator shaft. The detection assembly communicates with the center console and is provided with a first identification piece and a plurality of second identification pieces, the first identification piece is arranged on the center console, each positioning piece is provided with one second identification piece, and when the first identification piece is right opposite to the second identification piece, the detection assembly sends a signal to the center console; the time interval of the two positioning pieces is recorded. According to the technical scheme, the problem that an existing speed detection device is inconvenient to carry out periodic calibration detection is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator detection, and particularly relates to an elevator speed detection device. Background Art

[0002] When an elevator is operating, people or goods are transported vertically in the elevator shaft through a car. Generally, the elevator is provided with multiple safety protection measures to avoid the car falling accident when the cable breaks. At the same time, the operating state of the elevator is judged in real time through a speed detection device.

[0003] The existing speed detection device calculates the elevator operating speed through detection components such as photoelectric induction, or speed sensors, or encoders, etc. However, during long-term use, due to factors such as dust, wear, device aging, deformation, vibration, and offset, etc., the recording of travel and time parameters will be affected, thereby affecting the calculation of speed. Therefore, it is also necessary to perform more accurate detection of the elevator speed periodically to calibrate the fixedly installed speed detection device. However, the existing speed detection device is not convenient for periodic calibration detection. Summary of the Invention

[0004] The technical problem to be solved by the present invention is, in view of the above-mentioned technical deficiencies, to provide an elevator speed detection device, which solves the problem that the existing speed detection device is not convenient for periodic calibration detection.

[0005] The technical solution adopted by the present invention is: to provide an elevator speed detection device, including:

[0006] A central control console, which is detachably arranged on the car of the elevator;

[0007] Positioning members, there are several of them. After following the lifting of the central control console, they are used to be detachably arranged at intervals in the elevator shaft;

[0008] Distance measuring components, there are several of them. One distance measuring component is arranged on each positioning member, and the distance measuring component is used to measure the vertical distance between two adjacent positioning members;

[0009] A moving member, which is movably arranged on the central control console and is used to carry the positioning member to move, set the positioning member in the elevator shaft or remove it from the elevator shaft;

[0010] A detection component, which is communicatively arranged with the central control console, has a first identification member and several second identification members. The first identification member is arranged on the central control console, and one second identification member is arranged on each positioning member. When the first identification member and the second identification member are directly opposite to each other, the detection component sends a signal to the central control console, which is used to record the time interval passing through the two positioning members.

[0011] To further optimize this technical solution, one end of the positioning member has a negative pressure port, and the positioning member is adsorbed in the elevator shaft by a negative pressure fan acting on the negative pressure port, and the central control console controls the operation of the negative pressure fan.

[0012] To further optimize this technical solution, one end of the positioning member has an electromagnet, and the positioning member is fixed in the elevator shaft by magnetic attraction, and the central control console controls the operation of the electromagnet.

[0013] To further optimize this technical solution, it further includes:

[0014] A vibration detection module, and the vibration detection module is arranged in each positioning member for detecting the vibration in the elevator shaft and communicating with the central control console.

[0015] To further optimize this technical solution, several receiving grooves are provided at the upper end of the central control console for receiving the positioning members.

[0016] To further optimize this technical solution, the moving member is a robotic arm, and the positioning member in the receiving groove is placed in the elevator shaft.

[0017] To further optimize this technical solution, the moving member is a vertically arranged clamping seat, and several positioning members are clamped in the clamping seat at intervals in the up and down direction. It further includes:

[0018] A linear driving unit, which is arranged on the central control console for driving the moving member to move.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. Modular design, which can be installed on the car for speed detection during calibration and detection. It is convenient to use, simple to operate, and the detection is more accurate, which is beneficial to perform periodic speed detection and elevator running speed calibration. After the detection is completed, the positioning member can be recycled and removed from the central control console.

[0021] 2. The moving member installs the positioning members at intervals one by one in the elevator shaft. The ranging component can more accurately confirm the interval between two adjacent positioning members. When the elevator car moves up and down normally, the detection component is used for identification, and the time interval passing through the two positioning members is recorded, so as to calculate values such as speed or acceleration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a schematic structural diagram of the other side view angle of the present invention;

[0024] Figure 3 is a schematic structural diagram of the use state of the present invention;

[0025] Figure 4 For the present invention Figure 3 Side view structure schematic diagram;

[0026] Figure 5 Negative pressure port structure schematic diagram of the positioning member of the present invention;

[0027] Figure 6 Second identification member structure schematic diagram on the positioning member of the present invention;

[0028] Marking description in the figure: 1, center console; 101, receiving groove; 2, positioning member; 201, negative pressure port; 3, ranging component; 4, moving member; 401, card seat; 402, linear drive unit; 5, detection component; 501, first identification member; 502, second identification member. Detailed implementation manners

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0030] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0031] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] In addition, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] Such as Figures 1-6As shown in the figure, an elevator speed detection device includes: a central control console 1, which is detachably arranged on the elevator car; a plurality of positioning members 2, which are spaced apart and detachably arranged in the elevator shaft after moving up and down with the central control console 1; a plurality of distance measuring components 3, with one distance measuring component 3 arranged on each positioning member 2, and the distance measuring component 3 is used to measure the vertical distance between two adjacent positioning members 2; a moving member 4, which is movably arranged on the central control console 1 and is used to carry the positioning member 2 to move, so as to arrange the positioning member 2 in the elevator shaft or remove it from the elevator shaft; a detection component 5, which is communicatively arranged with the central control console 1, and has a first identification member 501 and a plurality of second identification members 502. The first identification member 501 is arranged on the central control console 1, and each positioning member 2 is provided with a second identification member 502. When the first identification member 501 and the second identification member 502 are directly opposite, the detection component 5 sends a signal to the central control console 1 for recording the time interval passing through the two positioning members 2.

[0034] During use, when detection is required, the central control console 1 is stably placed at the upper end of the car, and the position convenient for fixedly installing the positioning member 2, such as the position close to the inner wall on one side of the elevator shaft or the iron plate near the floor door, can be selected according to the on-site environment. After the positioning member 2 is installed, it does not affect the up and down operation of the elevator, and the first identification member 501 faces the installation position of the installation member. The elevator's up and down movement drives the central control console 1 to move up and down, and the moving member 4 installs the positioning members 2 one by one in the elevator shaft. The first identification member 501 and the second identification member 502 are arranged opposite to each other. The distance measuring component 3 can be located at the upper end of the positioning member 2 to accurately detect the vertical distance between adjacent positioning members 2. After a plurality of positioning members 2 are installed at intervals in sequence, when the elevator is running up and down normally and passes through the positioning member 2, when the first identification member 501 and the second identification member 502 are directly opposite, accurate identification can be carried out to record the time, and the speed or acceleration can be calculated through the distance and time. The detection component 5 can perform more accurate identification and detection through infrared sensing, etc., to reduce errors.

[0035] After multiple speed detections, the speed detection can be completed, and the old speed detection devices fixedly installed with the elevator can be inspected and calibrated to reduce the accumulated errors during long-term use and avoid misjudgment. The installation position of the positioning member 2 can be random or roughly set to avoid the problem of incomplete and inaccurate data detection caused by the fixed detection position.

[0036] A large number of positioning parts 2 can be installed at intervals in the entire operating area of ​​the elevator shaft at one time, or several positioning parts 2 can be installed in a local operating area and after completing the speed detection, the positioning parts 2 can be recovered and installed in other operating areas for speed detection. Automatic control can be performed through the central console 1 to reduce manpower. This control method is a conventional technology and can be implemented. The central console 1 can have built-in control circuits, etc., and an interactive interface can be set at the top for operation. The communication method can use wireless communication for real-time transmission. Of course, after the test is completed, data can be transmitted by wiring and other methods. These are all conventional technical means of communication. The detachable installation method of the central console 1 on the car can be existing methods such as magnetic suction, negative pressure adsorption, clamps, and bolt connections.

[0037] Further, one end of the positioning member 2 has a negative pressure port 201, and the positioning member 2 is adsorbed in the elevator shaft by the negative pressure fan acting on the negative pressure port 201, and the central console 1 controls the operation of the negative pressure fan. One end of the positioning member 2 has an electromagnet, and the positioning member 2 is fixed in the elevator shaft by magnetic attraction, and the central console 1 controls the operation of the electromagnet.

[0038] When in use, the positioning member 2 can be detachably installed in the elevator shaft in a suitable manner according to the prior art, such as magnetically adsorbed to an iron object in the elevator shaft (such as a fixed position on one side of a floor door panel), plugged or snapped into a suitable position in the elevator shaft, or adsorbed to the inner wall of the elevator shaft or a fixed position of a floor door panel by negative pressure adsorption.

[0039] When negative pressure adsorption is adopted, a negative pressure fan can be provided in the positioning member 2 to draw air from the negative pressure port 201, so that negative pressure is maintained between the end of the positioning member 2 with the negative pressure port 201 and the inner wall of the elevator shaft, so as to fix the positioning member 2. When the positioning member 2 is removed, the moving member 4 carries the positioning member 2 and stops the negative pressure fan. The positioning member 2 needs to be equipped with a mobile power supply to maintain the power supply of the negative pressure fan and other components during the detection period.

[0040] A magnetic attraction method can also be used, where one side of the positioning member 2 has an electromagnet or a permanent magnet (a permanent magnet can be used when the moving member 4 can change the clamping and moving force of the positioning member 2), and is fixed to the iron object on the inner wall of the elevator shaft or the iron object fixed on one side of the floor door panel by magnetic attraction. The arrangement position of the magnet can be set according to the on-site environment to ensure that the first identification member 501 and the second identification member 502 are opposite to each other and do not affect the operation of the elevator.

[0041] The negative pressure fan and the electromagnet are existing devices. Those skilled in the art can select the model and confirm the installation position on the positioning member 2 according to the needs. They are not shown in the drawings.

[0042] Furthermore, it also includes: a vibration detection module. Each positioning member 2 is provided with a vibration detection module for detecting vibrations in the elevator shaft and communicating with the central control console 1.

[0043] During use, the vibration detection module can detect the vibration at the position where the positioning member 2 is located. For example, an accelerometer or the like can be used for monitoring. Through the vibration, the stability of the elevator during operation can be judged, and then it can be considered whether further detection of the operating environment in the elevator shaft is required. For example, when the local vibration is large, there may be problems such as guide rail deformation or foreign object blockage. Then, the corresponding area can be manually detected to further improve the operating safety of the elevator. The vibration detection module is an existing detection device, and those skilled in the art can select a suitable model and an appropriate installation position, which are not shown in the drawings.

[0044] Furthermore, there are several receiving grooves 101 at the upper end of the console 1 for receiving the positioning member 2.

[0045] During use, the console 1 can carry more positioning members 2 through the receiving grooves 101, which is convenient to carry. And in the receiving grooves 101, the mobile power supply in the positioning member 2 can be charged, making it more convenient to use.

[0046] Furthermore, the moving member 4 is a robotic arm for placing the positioning member 2 in the receiving groove 101 into the elevator shaft.

[0047] During use, when the positioning member 2 is arranged in the receiving groove 101, the robotic arm with multiple degrees of freedom can be used to pick up the positioning member 2. The moving member 4 can be a robotic arm, which can clamp the positioning member 2 and approach an appropriate position in the elevator shaft, or clamp and remove the positioning member 2 from the elevator shaft for recycling. The robotic arm technology is mature, has good controllability, and has a large upgrade space in the future.

[0048] Furthermore, the moving member 4 is a vertically arranged clamping seat 401, and several positioning members 2 are clamped in the clamping seat 401 at intervals in the up and down direction. It further includes: a linear drive unit 402 arranged on the console 1 for driving the moving member 4 to move.

[0049] During use, the moving member 4 can also be a U-shaped vertical clamping seat 401, and the positioning member 2 is clamped in the clamping seat 401. The linear drive unit 402 can adopt a linear drive or a linear telescopic mechanism such as a hydraulic cylinder assembly to extend the moving member 4 close to the inner wall of the elevator shaft. After the positioning member 2 abuts against the inner wall, the negative pressure fan or electromagnet of one of the positioning members 2 is turned on. After a fixed connection is generated, the moving member 4 retracts, and thus one positioning member 2 is installed on the inner wall. The linear drive unit 402 can judge whether the positioning member 2 abuts against the inner wall and other positions through a preset telescopic stroke or through proximity feedback, resistance feedback and other existing technologies.

[0050] It will be understood that the present invention is described by way of some embodiments, and those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An elevator speed detection device, characterized in that: include: A central console (1) is used to be detachably arranged on the elevator car; A plurality of positioning members (2) are used to be detachably arranged at intervals in the elevator shaft after the central console (1) is raised or lowered; There are a plurality of distance measuring components (3), one of which is arranged on each positioning member (2), and the distance measuring component (3) is used to measure the vertical distance between two adjacent positioning members (2); A moving member (4) is movably arranged on the central console (1) and is used to carry the positioning member (2) to move, and to arrange the positioning member (2) in the elevator shaft or remove it from the elevator shaft; A detection component (5) is arranged to communicate with the center console (1), and has a first identification component (501) and a plurality of second identification components (502), wherein the first identification component (501) is arranged on the center console (1), and each of the positioning components (2) is provided with a second identification component (502), and when the first identification component (501) and the second identification component (502) are facing each other, the detection component (5) sends a signal to the center console (1) for recording the time interval between the two positioning components (2).

2. An elevator speed detection device according to claim 1, characterized in that: One end of the positioning member (2) is provided with a negative pressure port (201), and the positioning member (2) is adsorbed in the elevator shaft through a negative pressure fan acting on the negative pressure port (201), and the central control console (1) controls the operation of the negative pressure fan.

3. An elevator speed detection device according to claim 1, characterized in that: One end of the positioning member (2) is provided with an electromagnet, the positioning member (2) is fixed in the elevator shaft by magnetic attraction, and the central control console (1) controls the operation of the electromagnet.

4. An elevator speed detection device according to claim 1, characterized in that: Also includes: A vibration detection module is provided in each positioning member (2) and is used to detect vibrations in the elevator shaft and communicate with the central control console (1).

5. An elevator speed detection device according to claim 1, characterized in that: The upper end of the central console (1) is provided with a plurality of accommodating grooves (101) for accommodating the positioning member (2).

6. An elevator speed detection device according to claim 5, characterized in that: The moving part (4) is a mechanical arm, which places the positioning part (2) in the receiving groove (101) in the elevator shaft.

7. An elevator speed detection device according to claim 1, characterized in that: The moving member (4) is a vertically arranged card seat (401), and a plurality of the positioning members (2) are card-engaged in the card seat (401) at intervals along the up and down directions, and further comprises: A linear drive unit (402) is arranged on the central console (1) and is used to drive the moving member (4) to move.

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