Elevator spacing detection device

Abstract

The utility model discloses an elevator spacing detection device, and belongs to the technical field of elevator safety monitoring equipment. The elevator spacing detection device mainly comprises a mounting column, a range finder, an auxiliary sensor, a floor counter and a wireless signal transmitting mechanism. Wherein a range finder is arranged on the mounting column and is used for detecting the distance between the elevator car and the well wall; an auxiliary sensor used for assisting the range finder in calibrating measurement parameters is arranged in the mounting column; a floor counter is arranged on the mounting column and used for recording the floor where the elevator arrives at in real time, and the floor counter and the range finder are arranged in a spaced mode. And a wireless signal transmitting mechanism is arranged on the mounting column. Compared with the prior art, the working efficiency is improved, and meanwhile the danger degree of detection personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator safety monitoring equipment, in particular to an elevator spacing detection device. Background Art

[0002] Controlling the distance between the elevator car and the shaft wall facing the car entrance is to prevent people from accidentally falling into the shaft, and to prevent the risk of people being squeezed and sheared. During the inspection process, the car top inspector cooperates with the car inside inspector to run the elevator to a suitable position, open the car door, and use a steel ruler to measure the horizontal distance between the inner surface of the shaft wall and the car sill, car door and door frame. However, since the inspectors are in two independent work spaces, continuous communication should be ensured, and the car top inspector can only repeat the operating instructions and receive "permission to operate" before he can run or stop the car according to the needs of the people in the car, and should also fully communicate with the people in the car in advance.

[0003] In the process of detecting the distance between the elevator car and the hoistway wall, especially when detecting elevators in high-rise buildings, the traditional method is not only extremely inefficient but also generally very dangerous. Therefore, it is necessary to develop an alternative and safer elevator distance detection device. Utility Model Content

[0004] In order to solve the defects of the existing technology, the elevator spacing detection device provided by the utility model mainly includes a mounting column, a distance meter, an auxiliary sensor, a floor counter and a wireless signal transmitting mechanism. When the detection device is used to measure the distance between the elevator car and the shaft wall, the distance meter can automatically and accurately measure the distance between the elevator car and the shaft wall on each floor, which improves work efficiency compared with the existing technology and also reduces the risk level of the detection personnel.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An elevator spacing detection device, comprising:

[0007] Mounting columns;

[0008] a distance meter, for detecting the distance between the elevator car and the hoistway wall, the distance meter being arranged on the mounting post;

[0009] an auxiliary sensor, used for assisting the rangefinder in calibrating measurement parameters, and arranged on the mounting post;

[0010] A floor counter, used to record the floor currently reached by the elevator in real time, wherein the floor counter and the distance meter are arranged on the mounting column at intervals;

[0011] in,

[0012] The mounting column is further provided with a wireless signal transmitting mechanism, which can transmit the distance information detected by the elevator distance detection device to the terminal device.

[0013] Furthermore, the rangefinder is a laser rangefinder.

[0014] Furthermore, the auxiliary sensor is an acceleration sensor, and the acceleration sensor is integrated inside the mounting column.

[0015] Furthermore, the acceleration detection probe of the acceleration sensor is located on the outer surface of the mounting post.

[0016] Furthermore, the elevator spacing detection device also includes:

[0017] First protective shield;

[0018] The first protective cover is used to protect the acceleration detection probe, and the cavity of the first protective cover can accommodate the acceleration detection probe.

[0019] Furthermore, the elevator spacing detection device also includes:

[0020] Magnetic mechanism;

[0021] The magnetic mechanism is used to stably mount the elevator spacing detection device on the elevator, and the magnetic mechanism is arranged at the bottom end of the mounting column.

[0022] Furthermore, the elevator spacing detection device also includes:

[0023] Fastening components;

[0024] The fastening assembly is used to stabilize the position of the rangefinder, and the fastening assembly is symmetrically arranged on both sides of the rangefinder.

[0025] Furthermore, the fastening assembly includes:

[0026] A fixing block is provided on the top of the mounting column;

[0027] A supporting member, one end of which passes through the fixing block, and the one end of which is against the side of the rangefinder.

[0028] Furthermore, there is a gap between the fixing block and the rangefinder.

[0029] Furthermore, the elevator spacing detection device also includes:

[0030] Second protective shield;

[0031] The second protective cover is used to protect components arranged on the mounting post, and the inner cavity of the second protective cover can accommodate the mounting post.

[0032] The beneficial effects of the utility model are:

[0033] The distance meter in the elevator distance detection device provided by the present invention can automatically measure the distance between the elevator car and the shaft wall on each floor. The auxiliary sensor provided in the detection device can assist the distance meter in calibrating the measurement parameters, thereby making the distance information measured by the distance meter more accurate. The floor counter provided in the detection device can record the floor reached by the current elevator in real time, conveniently recording the floor and the distance information measured by the corresponding floor together, making the recorded data more complete. The wireless signal transmission mechanism provided in the detection device can send the data measured by the distance meter to a terminal device, making it convenient for detection personnel to view the data and complete the data collection work. Compared with the existing technology, the present invention improves work efficiency and also reduces the risk level for detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0035] Figure 2 This is a schematic diagram of a state in which the first protective cover in the present invention is away from the acceleration detection probe;

[0036] Figure 3 This is a schematic diagram of the state where the second protective cover in the present invention is away from the mounting post.

[0037] Reference numerals:

[0038] 1. Magnetic mechanism;

[0039] 2. Install the column;

[0040] 3. Rangefinder;

[0041] 4. Wireless signal transmitting mechanism;

[0042] 5. Acceleration detection probe;

[0043] 6. Fastening assembly; 61. Fixing block; 62. Supporting member;

[0044] 7. First protective cover;

[0045] 8. Second protective cover;

[0046] 9. Control panel. DETAILED DESCRIPTION

[0047] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0048] Example 1

[0049] As attached Figure 1 As shown, this embodiment discloses an elevator distance detection device for detecting the distance between an elevator car and a hoistway wall. The device primarily comprises a mounting post 2, a distance meter 3, an auxiliary sensor (not shown), and a wireless signal transmitter 4. During use, the device is secured near the bottom of the elevator, approximately in the middle, with the distance meter 3 facing the hoistway wall. The device is then activated, and the distance meter 3 measures the current distance between the car and the hoistway wall. The distance meter 3 then transmits this distance information to a terminal device (not shown) via the wireless signal transmitter 4, allowing staff to easily view the distance information. The elevator is then driven to the next floor. During this process, the auxiliary sensor assists the distance meter 3 in automatically calibrating its measurement parameters to accommodate the elevator's swaying conditions. Simultaneously, a floor counter (not shown) records the floor the elevator has reached in real time. The floor counter transmits this recorded floor information to the terminal device via the signal transmitter 4, allowing users to view the distance information measured for the corresponding floor.

[0050] The specific structure of the elevator distance detection device is as follows: it includes a mounting post 2, on which is mounted a distance meter 3, and an auxiliary sensor for assisting the distance meter 3 in calibrating its measurement parameters; a floor counter is mounted on the mounting post 2, spaced apart from the distance meter 3; and a wireless signal transmitter 4 is mounted on the mounting post 2. Compared to existing technologies, this utility model improves work efficiency while also reducing the risk to detection personnel.

[0051] In a specific application scenario, a rangefinder 3 is mounted on the top of a mounting post 2. The rangefinder 3 can be a laser rangefinder, whose probe (not labeled) integrates a laser transmitter (not shown) and a laser receiver (not shown). After the elevator stops at a floor, the laser transmitter in the laser rangefinder emits a laser beam, which strikes the shaft wall. The laser beam then reflects back to the laser rangefinder, where it is received by the laser receiver. The laser rangefinder calculates the time between laser emission and laser reception, and thus calculates the distance between the elevator car and the shaft wall. Typically, the laser rangefinder is electrically connected to a control panel 9. This design allows the detected distance information to be transmitted to the wireless signal transmitter 4 via the control panel 9, thereby enabling data transmission.

[0052] In a specific application scenario, the wireless signal transmitting mechanism 4 is set on the left side of the mounting column 2; wherein, the wireless signal transmitting mechanism 4 is generally electrically connected to a control panel 9. Such a design can achieve the following purposes: the laser rangefinder transmits the detected distance information to the control panel 9, and after analysis and processing, the control panel 9 can transmit the distance information to a terminal device via the wireless signal transmitting mechanism 4; wherein, the terminal device needs to be pre-installed with a pre-written dedicated test software, and the terminal device includes but is not limited to a tablet computer, a mobile phone and a desktop computer; in addition, the terminal device can fully control the detection device through the test software, and the user can view the measured data on the main interface of the test software; and the measured data will be saved in the terminal device according to the pre-set floor information; in addition, after the user has completed the inspection of the floor for which he is responsible, he can upload his measured data to the cloud by pressing the one-click upload button in the test software, thereby realizing data interconnection and centralized resource management. Of course, the position of the wireless signal transmitting mechanism 4 can be appropriately adjusted according to the needs of the user, and the corresponding content is not repeated here.

[0053] In a specific application scenario, the auxiliary sensor may be an acceleration sensor. The acceleration sensor's acceleration detection probe 5 extends to the outer surface of the upper end of the mounting column 2 and is generally electrically connected to a control panel 9. The acceleration detection probe 5 can monitor and receive the current acceleration of the elevator car in three directions (X, Y, and Z). The environmental information received by the acceleration detection probe 5 is transmitted to the acceleration sensor. The acceleration sensor performs preprocessing to obtain an acceleration signal. The acceleration sensor performs differential processing on the acceleration signal to obtain the acceleration and deceleration change rates. The acceleration sensor integrates the acceleration signal to obtain the elevator car's velocity and displacement signals. In other words, the acceleration sensor can determine the current direction of travel of the elevator car by monitoring the acceleration changes. Furthermore, the laser rangefinder can not only measure the distance between the elevator car and the hoistway wall, but also detect the elevator car's height in real time. During this process, the acceleration sensor transmits its own detected data along with the height information detected by the laser rangefinder to the control panel 9. After analysis and processing, the control panel 9 transmits corresponding control information to the laser rangefinder, which can automatically calibrate the measurement parameters. This design improves the measurement accuracy of the detection device. Of course, the position of the acceleration detection probe 5 can be appropriately adjusted according to the needs of the user, as long as the acceleration sensor can assist the laser rangefinder in calibrating its measurement parameters.

[0054] It should be noted that: when the elevator stops at the first floor and the acceleration sensor detects that the acceleration of the current elevator operation is close to 0, the acceleration sensor can send a start command to the laser rangefinder via the control panel 9, and the laser rangefinder starts to measure the distance information between the elevator car and the shaft wall; during this process, the elevator may shake, which generally affects the measurement results of the laser rangefinder. At this time, the detection device needs to use the acceleration sensor to assist the laser rangefinder in calibrating its measurement parameters, thereby improving the measurement accuracy of the laser rangefinder.

[0055] In a specific application scenario, when the acceleration detected by the aforementioned accelerometer approaches 0, the floor counter automatically increments by 1. To prevent incorrect floor counter counts, the control function in the floor counter is programmed with the following logic: When the elevator is ascending and its acceleration approaches 0, the floor counter enters the accumulation function and performs an increment operation. After the increment, the accumulation function cannot be entered. The floor counter is triggered only after the distance measurement is completed. When the elevator reaches the next floor and its acceleration approaches 0, the floor counter increments by 1 again, and so on. Conversely, when the elevator is descending and its acceleration approaches 0, the floor counter enters the decrement function and performs a decrement operation. In short, the floor counter increments by 1 only once for each floor the elevator ascends and decrements by 1 only once for each floor the elevator descends, thus achieving accurate floor counting. The floor counter is electrically connected to the aforementioned control panel 9. The floor counter can send the recorded floor information to the terminal device via the control panel 9 and the wireless signal transmitting mechanism 4. The user can view the distance information measured for the corresponding floor on the terminal device, making it convenient to see which floors have qualified distances and which floors have exceeded the standard. For example, according to the requirements of GB / T7588.1-2020 Safety Specifications for Elevator Manufacturing and Installation, the distance between the passenger elevator car and the shaft wall should be less than or equal to 0.15m, and the user sees through the terminal device that the distances between the elevators on the 1st, 2nd and 3rd floors are all 0.15m, and the distance between the elevator on the 4th floor is 0.18m. The user can quickly know that the distance between the elevator car on the 4th floor and the shaft wall exceeds the standard, and then notify the maintenance personnel to deal with the problem on the 4th floor. This design improves the work efficiency of the maintenance personnel.

[0056] Furthermore, as attached Figure 1 As shown, a magnetic mechanism 1 is provided on the mounting post 2. In a specific application scenario, the magnetic mechanism 1 is provided at the lower end of the mounting post 2. The magnetic mechanism 1 generally includes a permanent magnet (not shown) that generates sufficient magnetic force to securely mount the detection device on the elevator. Typically, a magnetic force adjustment member (not shown) is integrated within the magnetic mechanism 1 and is electrically connected to a control panel 9. The control panel 9 determines the current elevator height based on data from a laser rangefinder and an accelerometer, and then controls the permanent magnet to generate a corresponding magnetic force via the magnetic force adjustment member. When detection is complete and the elevator is currently stopped on the ground floor, the user can operate the control panel 9 to send a control command to the permanent magnet via the magnetic force adjustment member to stop generating magnetic force, thereby removing the detection device from the elevator. This design improves the convenience of installing or removing the detection device from the elevator. Furthermore, the magnetic mechanism 1 does not occupy space within the mounting post 2, making the overall structure of the detection device more aesthetically pleasing.

[0057] In order to realize the intelligence of the detection device, as shown in the attached Figure 1 As shown, the aforementioned control panel 9 is provided on the mounting column 2. In a specific application scenario, the control panel 9 is provided on the front side of the mounting column 2. In addition, the control panel 9 is also provided with a screen (not marked in the figure) and buttons (not marked in the figure). By pressing the corresponding buttons, the user can view the distance information between the elevator car and the hoistway wall for each floor on the screen. The user can also press other buttons according to the instructions on the screen to stop or start the permanent magnet in the magnetic mechanism 1 to generate magnetic force, thereby facilitating the user to remove or install the detection device in the elevator. In addition, the user can also connect a terminal device to the data interface (not shown) of the control panel 9 via a data cable (not shown in the figure). In this way, the distance information recorded in the control panel 9 can be imported into the terminal device, thereby facilitating the user to collect the distance information measured by the detection device. Of course, the position of the control panel 9 can be appropriately adjusted according to the user's needs, and the corresponding content is not repeated here. In addition, using existing technology to measure the distance between the elevator car and the shaft wall of a single-story building takes 10-30 minutes, while this embodiment can complete the measurement within one minute, and this embodiment can obtain high-precision and complete measurement data. Therefore, this embodiment greatly improves work efficiency compared to existing technologies.

[0058] Example 2

[0059] As attached Figure 1 As shown, this embodiment discloses an elevator spacing detection device for stabilizing the position of a laser rangefinder. In this embodiment, fastening components 6 are symmetrically arranged on both sides of the laser rangefinder. The fastening components 6 can be pressed against both sides of the laser rangefinder, thereby stabilizing the position of the laser rangefinder.

[0060] In a specific application scenario, the fastening assembly 6 includes a fixing block 61 and a supporting member 62. The fixing block 61 in the fastening assembly 6 is set at the top of the mounting post 2 and is located on the side of the laser rangefinder; a through hole is opened on the side of the fixing block 61, and one end of the supporting member 62 passes through the through hole and abuts the side of the laser rangefinder.

[0061] Furthermore, there is a gap between the fixing block 61 and the laser rangefinder. During operation, the laser rangefinder repeatedly transmits and receives laser light to detect the distance between the car and the hoistway wall and the current height. This process generates a lot of heat, which, if not dissipated in time, can cause the laser rangefinder to malfunction. Therefore, leaving a gap between the fixing block 61 and the laser rangefinder facilitates the dissipation of the heat generated by the laser rangefinder during operation.

[0062] Example 3

[0063] This embodiment discloses an elevator spacing detection device for extending the service life of the aforementioned embodiment 2. This embodiment provides a first protective cover 7, the cavity of the first protective cover 7 (not shown in the figure) can accommodate the acceleration detection probe 5; in addition, the structure of the first protective cover 7 near the working end of the acceleration detection probe 5 is not completely closed, and will not affect the normal operation and heat dissipation of the acceleration detection probe 5; during the operation of the elevator, the first protective cover 7 can prevent the acceleration detection probe 5 from being directly hit by foreign objects, and the acceleration detection probe 5 can be directly hit by foreign objects. Figure 2 This is a schematic diagram of the state where the first protective cover 7 is away from the acceleration detection probe 5. Such a design can protect the acceleration detection probe 5, thereby extending the service life of the aforementioned embodiment 2 to a certain extent.

[0064] This embodiment takes into account another situation, and the specific solution is as follows: a second protective cover 8 is placed on the upper side of the magnetic mechanism 1, and the inner cavity of the second protective cover 8 (not marked in the figure) can accommodate all components arranged on the top of the magnetic mechanism 1, so that the second protective cover 8 can be directly placed on the top of the magnetic mechanism 1; in addition, the end surface of the second protective cover 8 in contact with the magnetic mechanism 1 is provided with a magnetic layer (not shown in the figure). When the user places the second protective cover 8 on the top of the magnetic mechanism 1, the second protective cover 8 can be automatically adsorbed on the magnetic mechanism 1. It should be noted that the magnetic adsorption force on the second protective cover 8 is less than the magnetic adsorption force generated by the permanent magnet at the bottom of the magnetic mechanism 1. The second protective cover 8 can be freely installed or removed. Figure 3 Schematic diagram of the state where the second protective cover 8 is away from the mounting post 2. When the detection device is not in use or transported, the second protective cover 8 is placed on the top of the magnetic mechanism 1, which can protect all components arranged on the top of the magnetic mechanism 1, thereby extending the service life of the aforementioned embodiment 2 to a certain extent.

[0065] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an" and "the" used in the present invention may also include plural forms. It should be further understood that the term "comprising" used in the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any one of the units and all combinations of one or more associated listed items.

Claims

1. Elevator spacing detection device, characterized in that: include: A mounting column (2); a distance meter (3) for detecting the distance between the elevator car and the shaft wall, the distance meter (3) being arranged on the mounting column (2); an auxiliary sensor for assisting the distance meter (3) in calibrating measurement parameters, the auxiliary sensor being arranged on the mounting column (2); a floor counter for recording the floor currently reached by the elevator in real time, the floor counter and the distance meter (3) being arranged on the mounting column (2) at intervals; wherein a wireless signal transmitting mechanism (4) is further arranged on the mounting column (2), the wireless signal transmitting mechanism (4) being capable of transmitting the distance information detected by the elevator distance detection device to a terminal device.

2. The elevator spacing detection device according to claim 1, characterized in that: The rangefinder (3) is a laser rangefinder.

3. The elevator spacing detection device according to claim 1, characterized in that: The auxiliary sensor is an acceleration sensor, and the acceleration sensor is integrated and arranged inside the mounting column (2).

4. The elevator distance detection device according to claim 3, characterized in that: The acceleration detection probe (5) of the acceleration sensor is located on the outer surface of the mounting column (2).

5. The elevator distance detection device according to claim 4, characterized in that: Also includes: A first protective cover (7); the first protective cover (7) is used to protect the acceleration detection probe (5); a cavity of the first protective cover (7) can accommodate the acceleration detection probe (5).

6. The elevator distance detection device according to claim 1, characterized in that: Also includes: A magnetic mechanism (1); the magnetic mechanism (1) is used to stably mount the elevator spacing detection device on the elevator, and the magnetic mechanism (1) is disposed at the bottom end of the mounting column (2).

7. The elevator spacing detection device according to claim 1, characterized in that: Also includes: Fastening assembly (6); the fastening assembly (6) is used to stabilize the position of the rangefinder (3), and the fastening assembly (6) is symmetrically arranged on both sides of the rangefinder (3).

8. The elevator distance detection device according to claim 7, characterized in that: The fastening assembly (6) comprises: a fixing block (61) arranged at the top end of the mounting column (2); and a supporting member (62), one end of the supporting member (62) passing through the fixing block (61), and the one end of the supporting member (62) abutting against the side of the rangefinder (3).

9. The elevator distance detection device according to claim 8, characterized in that: There is a gap between the fixed block (61) and the rangefinder (3).

10. The elevator distance detection device according to any one of claims 1 to 9, characterized in that: Also includes: A second protective cover (8); the second protective cover (8) is used to protect components arranged on the mounting post (2); the inner cavity of the second protective cover (8) can accommodate the mounting post (2).

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