Speed measuring device for elevator detection

Abstract

The utility model provides a speed measuring device for elevator detection, which relates to the technical field of elevator detection and comprises a mounting plate, and the top of the mounting plate is provided with two insertion grooves. When the running speed of an elevator is detected through the speed measuring device, vibration can be generated during running of the elevator car and transmitted to the mounting plate, meanwhile, under the action of a limiting plate, the speed measuring device and the mounting plate can be driven to move up and down, and under the action of a compression spring and a second damper, the speed measuring device and the mounting plate are driven to move up and down. According to the elevator speed measuring device, vibration borne by the mounting plate and the speed measuring device can be partially absorbed or eliminated, and then the vibration borne by the mounting plate and the speed measuring device can be further absorbed or eliminated under the action of an arc-shaped plate, a sliding block, a buffer spring and a first damper, so that the accuracy of an elevator running speed detection result by the speed measuring device is improved; and an electronic component in the speed measuring device is protected, so that the electronic component is prevented from being damaged due to long-time vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator detection, in particular to a speed measuring device for elevator detection. Background Art

[0002] An elevator is a vertical lift powered by an electric motor, used to carry cargo or people in high-rise buildings. Usually, when the elevator is running, it will give passengers a feeling of weightlessness and overweight. When the elevator speed is too slow, its ability to transport passengers is too low. When the elevator speed is too fast, excessive acceleration and deceleration will cause discomfort to passengers. Therefore, the elevator speed needs to be tested during elevator maintenance and inspection.

[0003] In the prior art, when maintaining an elevator, it is necessary to detect and adjust the speed of the elevator through a speed measuring device to ensure the safety and comfort of passengers. However, most speed measuring devices are installed on the top of the car for real-time detection. When the car moves up and down, it will produce violent vibrations. Since the speed measuring device does not have a good buffer and shock absorbing device, inaccurate results will appear when detecting the running speed of the elevator, and serious damage will be caused to the electronic components inside the detection device, thereby increasing maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that when the above equipment is in use, the detection device cannot be buffered and shock-absorbed, resulting in inaccurate detection results when detecting the elevator transportation speed, and thus a speed measuring device for elevator detection is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a speed measuring device for elevator detection, including a mounting plate, the top of the mounting plate is provided with two insertion grooves, the inner walls of the two insertion grooves are movably inserted with limit plates, a bottom plate is fixedly installed between the bottoms of the two limit plates, the top of the bottom plate is provided with two slide grooves, the inner walls of the two slide grooves are movably embedded with two sliders, the inner walls of the two slide grooves are provided with two buffer springs, and one side of the outer wall of the buffer spring is fixedly connected to one side of the outer wall of the slider, the four buffer springs are each provided with a first damper, and an arc plate is fixedly installed between every two of the four sliders by bolts, and the outer walls of the arc plates are fixedly connected to the bottom of the mounting plate by bolts.

[0006] Preferably, a compression spring is arranged between the top of the base plate and the bottom of the mounting plate, and a second damper is arranged inside the compression spring.

[0007] Preferably, a speed measuring device body is fixedly mounted on the top of the mounting plate, a movable groove is provided on the top of the mounting plate, and two movable blocks are movably embedded in the inner surface wall of the movable groove.

[0008] Preferably, a bidirectional threaded rod is movably inserted between the inner surface walls of the two movable blocks, and a limiting rod is movably inserted into the inner surface walls of the bidirectional threaded rod.

[0009] Preferably, a support frame is fixedly mounted on the top of the two movable blocks, a mounting box is fixedly mounted on one side of the outer wall of the two support frames, and a limiting spring is disposed on the inner surface wall of the two mounting boxes.

[0010] Preferably, a limiting shaft is movably embedded in the inner surface walls of the two installation boxes, and one side of the outer wall of the limiting shaft is fixedly connected to one side of the outer wall of the limiting spring, and an adjusting column is movably inserted inside the two support frames.

[0011] Preferably, the inner walls of the two adjusting columns are movably provided with detection wheels, a rotation speed sensor is fixedly mounted on one side of the outer walls of the two adjusting columns, and the outer wall of the rotation speed sensor is connected to the outer wall of one of the detection wheels.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In use, the utility model, through the interaction of a series of components, when the speed measuring device detects the running speed of the elevator, the car will generate vibration during operation and transmit it to the mounting plate, and at the same time, under the action of the limit plate, the speed measuring device and the mounting plate will be driven to move up and down, and under the action of the compression spring and the second damper, the vibration received by the mounting plate and the speed measuring device can be partially absorbed or eliminated, and then under the action of the arc plate, the slider, the buffer spring and the first damper, the vibration received by the mounting plate and the speed measuring device can be further absorbed or eliminated, thereby improving the accuracy of the speed measuring device for the elevator running speed detection result, and protecting the electronic components inside the speed measuring device to avoid damage to the electronic components due to long-term vibration, thereby greatly reducing the maintenance cost.

[0014] 2. In use, the utility model, through the interaction of a series of components, when it is necessary to detect the running speed of the elevator, first after the device is installed, the detection wheel can be adjusted to a suitable position under the action of the bidirectional threaded rod, the limit rod, the movable block and the support frame, and then the detection wheel can be adjusted to a suitable position again under the cooperation of the installation box, the limit spring, the limit shaft and the adjustment column, so that the speed measuring device can be applied to more elevator speed measurements, greatly improving the practicability of the speed measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a main structural stereogram of a speed measuring device for elevator detection;

[0016] Figure 2 The utility model provides a main structural split diagram of a speed measuring device for elevator detection;

[0017] Figure 3 The utility model provides a main structural part split diagram of a speed measuring device for elevator detection;

[0018] Figure 4 The utility model provides a main structural sectional view of a speed measuring device for elevator detection.

[0019] Legend:

[0020] 1. Mounting plate; 2. Speed ​​measuring device body; 3. Movable slot; 4. Movable block; 5. Bidirectional threaded rod; 6. Limit rod; 7. Support frame; 8. Mounting box; 9. Limit spring; 10. Limit shaft; 11. Adjustment column; 12. Detection wheel; 13. Speed ​​sensor; 14. Insertion slot; 15. Limit plate; 16. Bottom plate; 17. Slide slot; 18. Slider; 19. Buffer spring; 20. First damper; 21. Arc plate; 22. Compression spring; 23. Second damper. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Example 1: Figure 1-Figure 4As shown, the utility model provides a speed measuring device for elevator detection, including a mounting plate 1, the top of the mounting plate 1 is provided with two insertion grooves 14, the inner surface walls of the two insertion grooves 14 are movably inserted with limit plates 15, a bottom plate 16 is fixedly installed between the bottoms of the two limit plates 15, the top of the bottom plate 16 is provided with two slide grooves 17, the inner surface walls of the two slide grooves 17 are movably embedded with two sliders 18, the inner surface walls of the two slide grooves 17 are provided with two buffer springs 19, and one side of the outer wall of the buffer spring 19 is fixedly connected to one side of the outer wall of the slider 18, a first damper 20 is arranged inside the four buffer springs 19, an arc plate 21 is fixedly installed between every two of the four sliders 18 by bolts, and the outer wall of the arc plate 21 is fixedly connected to the bottom of the mounting plate 1 by bolts, a compression spring 22 is arranged between the top of the bottom plate 16 and the bottom of the mounting plate 1, and a second damper 23 is arranged inside the compression spring 22.

[0024] The effect achieved by the entire embodiment 1 is that when the speed measuring device is in use, the operation of the car will generate a large vibration, and the vibration will be transmitted to the mounting plate 1 through the structure. At this time, under the action of the limit plate 15, the mounting plate 1 will drive the speed measuring device to move upward. During the downward movement, the mounting plate 1 will compress the compression spring 22 and the arc plate 21 at the same time, thereby driving the slider 18 to move to both sides inside the slide groove 17 and compressing the buffer spring 19. When the buffer spring 19 and the compression spring 22 are compressed to a certain extent, the buffer spring 19 and the compression spring 22 will generate a large rebound force. At this time, under the action of the first damper 20 and the second damper 23, the rebound force generated by the buffer spring 19 and the compression spring 22 can be partially absorbed, so that it is no longer transmitted to the mounting plate 1 through the slider 18 and the arc plate 21, thereby having a buffering and shock-absorbing effect on the vibration received by the speed measuring device, avoiding damage to the electronic components inside the speed measuring device, thereby reducing cost consumption.

[0025] Example 2: Figure 2-Figure 4As shown, a speed measuring device body 2 is fixedly installed on the top of the mounting plate 1, a movable groove 3 is opened on the top of the mounting plate 1, and two movable blocks 4 are movably embedded in the inner surface wall of the movable groove 3, a bidirectional threaded rod 5 is movably inserted between the inner surface walls of the two movable blocks 4, and a limit rod 6 is movably inserted in the inner surface wall of the bidirectional threaded rod 5, and a support frame 7 is fixedly installed on the top of the two movable blocks 4, a mounting box 8 is fixedly installed on one side of the outer wall of the two support frames 7, and a limit spring 9 is arranged on the inner surface wall of the two mounting boxes 8, and a limit shaft 10 is movably embedded in the inner surface wall of the two mounting boxes 8, and one side of the outer wall of the limit shaft 10 is fixedly connected to one side of the outer wall of the limit spring 9, an adjusting column 11 is movably inserted in the interior of the two support frames 7, and a detection wheel 12 is movably inserted in the inner surface wall of the two adjusting columns 11, a speed sensor 13 is fixedly installed on one side of the outer wall of the two adjusting columns 11, and the outer wall of the speed sensor 13 is connected to the outer wall of one of the detection wheels 12.

[0026] The effect achieved by the entire embodiment 2 is that when it is necessary to use the speed measuring device to detect the running speed of the elevator, first, under the operation of the staff, the device is carried to the top of the car and installed. After the installation is completed, under the operation of the staff, the limit shaft 10 is pressed to make it move to both sides inside the installation box 8, and the limit spring 9 is compressed so that the limit shaft 10 no longer plays a fixed limit role on the adjustment column 11, and then the adjustment column 11 inside the support frame 7 is adjusted to drive the detection wheel 12 to move to a suitable position, and then the limit shaft 10 is released under the action of the limit spring 9 to be inserted into the adjustment column 11. The limit rod 6 is then taken out from the inside of the two-way threaded rod 5, and the two-way threaded rod 5 is rotated to drive the movable block 4 to move in the movable groove 3, thereby driving the detection wheel 12 to move to a suitable position, so that the two detection wheels 12 are fully fitted with the steel cable of the elevator, and then the limit rod 6 is inserted into the inside of the two-way threaded rod 5, and the movement of the car is driven by the steel cable. Under the action of the detection wheel 12, the speed sensor 13 and the speed measuring device body 2, the movement speed of the elevator can be detected, so that the speed measuring device can be applied to more elevator speed measurements, greatly improving the practicability of the speed measuring device.

[0027] Working principle: During use, when it is necessary to use the speed measuring device to detect the running speed of the elevator, first, under the operation of the staff, the device is moved to the top of the car and installed. After the installation is completed, under the operation of the staff, the limit shaft 10 is pressed to make it move to both sides inside the installation box 8, and the limit spring 9 is compressed so that the limit shaft 10 no longer plays a fixed limit role on the adjusting column 11, and then the adjusting column 11 inside the support frame 7 is adjusted to drive the detection wheel 12 to move to a suitable position, and then the limit shaft 10 is released. Under the action of the limit spring 9, it is inserted into the adjusting column 11, thereby playing a fixed limit role on the adjusting column 11, and then the limit rod 6 is taken out from the inside of the two-way threaded rod 5, and then the two-way threaded rod 5 is rotated to drive the movable block 4 to move inside the movable groove 3, thereby driving the detection wheel 12 to move to a suitable position, so that the two detection wheels 12 are fully fitted with the steel cable of the elevator, and then the limit rod 6 is inserted into the inside of the two-way threaded rod 5, the movement of the car is driven by the steel cable, and 12. Under the action of the speed sensor 13 and the speed measuring device body 2, the movement speed of the elevator can be detected. During the speed measuring process, the operation of the car will generate a large vibration, and the vibration will be transmitted to the mounting plate 1 through the structure. At this time, under the action of the limit plate 15, the mounting plate 1 will drive the speed measuring device to move upward. During the downward movement, the mounting plate 1 will compress the compression spring 22 and the arc plate 21 at the same time, thereby driving the slider 18 to move to both sides inside the slide groove 17 and compressing the buffer spring 19. When the buffer spring 19 and the compression spring 22 are compressed to a certain extent, the buffer spring 19 and the compression spring 22 will generate a large rebound force. At this time, under the action of the first damper 20 and the second damper 23, the rebound force generated by the buffer spring 19 and the compression spring 22 can be partially absorbed, so that it is no longer transmitted to the mounting plate 1 through the slider 18 and the arc plate 21, thereby having a buffering and shock-absorbing effect on the vibration of the speed measuring device and protecting the speed measuring device.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A speed measuring device for elevator detection, characterized in that: The invention comprises a mounting plate (1), wherein two insertion grooves (14) are provided at the top of the mounting plate (1), and the inner surfaces of the two insertion grooves (14) are both movably inserted with limit plates (15), and a bottom plate (16) is fixedly installed between the bottoms of the two limit plates (15), and two slide grooves (17) are provided at the top of the bottom plate (16), and the inner surfaces of the two slide grooves (17) are both movably embedded with two sliders (18), and the inner surfaces of the two slide grooves (17) are both provided with two buffer springs (19), and one side of the outer wall of the buffer spring (19) is fixedly connected to one side of the outer wall of the slider (18), and the first damper (20) is provided inside the four buffer springs (19), and an arc plate (21) is fixedly installed between every two of the four sliders (18) by bolts, and the outer surfaces of the arc plates (21) are fixedly connected to the bottom of the mounting plate (1) by bolts.

2. The speed measuring device for elevator detection according to claim 1, characterized in that: A compression spring (22) is arranged between the top of the base plate (16) and the bottom of the mounting plate (1), and a second damper (23) is arranged inside the compression spring (22).

3. The speed measuring device for elevator detection according to claim 2, characterized in that: A speed measuring device body (2) is fixedly mounted on the top of the mounting plate (1), a movable groove (3) is provided on the top of the mounting plate (1), and two movable blocks (4) are movably embedded in the inner surface wall of the movable groove (3).

4. The speed measuring device for elevator detection according to claim 3, characterized in that: A bidirectional threaded rod (5) is movably inserted between the inner surface walls of the two movable blocks (4), and a limiting rod (6) is movably inserted into the inner surface walls of the bidirectional threaded rod (5).

5. The speed measuring device for elevator detection according to claim 4, characterized in that: A support frame (7) is fixedly mounted on the top of each of the two movable blocks (4); a mounting box (8) is fixedly mounted on one side of the outer wall of each of the two support frames (7); and a limit spring (9) is disposed on the inner surface wall of each of the two mounting boxes (8).

6. The speed measuring device for elevator detection according to claim 5, characterized in that: A limiting shaft (10) is movably embedded in the inner surface wall of the two installation boxes (8), and one side of the outer wall of the limiting shaft (10) is fixedly connected to one side of the outer wall of the limiting spring (9), and an adjusting column (11) is movably inserted inside the two support frames (7).

7. The speed measuring device for elevator detection according to claim 6, characterized in that: The inner surface walls of the two adjusting columns (11) are both movably provided with detection wheels (12), and a rotation speed sensor (13) is fixedly mounted on one side of the outer wall of the two adjusting columns (11), and the outer surface wall of the rotation speed sensor (13) is connected to the outer surface wall of one of the detection wheels (12).

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