Elevator speed measuring device

Abstract

The utility model provides an elevator speed measuring device, and relates to the elevator detection technical field, the elevator speed measuring device comprises a magnetic attraction base, a direction adjusting assembly, a clamping assembly, a sensor and a magnet, the magnetic attraction base is used for being magnetically attracted on the surface of an elevator speed governor, one end of the direction adjusting assembly is connected with the magnetic attraction base, and the other end of the direction adjusting assembly is connected with the clamping assembly. One end of the direction adjusting assembly is connected with the fixed end of the clamping assembly, the other end of the direction adjusting assembly is connected with the fixed end of the clamping assembly, the clamping end of the clamping assembly clamps the sensor, the magnet is installed on an outer wheel of the elevator speed limiter and moves along with the outer wheel, and the sensor is used for collecting the rated speed of the elevator speed limiter through the magnet. According to the utility model, through the magnetic base, the direction adjusting assembly, the clamping assembly, the sensor and the magnet, non-contact speed measurement can be directly carried out on the elevator speed governor, operator equipment of manufacturers and maintenance units is not needed, and more objective and accurate speed measurement results can be obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator detection technical field, specifically, an elevator speed measuring device. BACKGROUND

[0002] The rated speed of an elevator refers to the normal running speed specified during the design and manufacture of the elevator, which is an important parameter determined by the elevator manufacturer according to the design of the building, the use requirements and the relevant safety standards. The rated speed is one of the key indicators for measuring the performance of the elevator, which affects the technical parameters such as the load capacity, acceleration, deceleration and stopping time of the elevator, and is closely related to the action speed of the safety device of the elevator such as the safety gear.

[0003] In the related art, determining whether the elevator reaches the rated speed is very important for supervision and inspection and periodic inspection. Currently, only the manufacturers and maintenance units have the corresponding operating device for detecting the rated speed, and these devices usually need to be purchased or authorized for use, which limits the objectivity and accuracy of the elevator inspection. SUMMARY

[0004] The problem solved by the utility model is how to objectively and accurately detect the rated speed of the elevator.

[0005] To solve the above problems, the utility model provides an elevator speed measuring device, which comprises a magnetic base, a direction adjusting assembly, a clamping assembly, a sensor and a magnet, the magnetic base is used for being magnetically adsorbed on the surface of an elevator speed governor, one end of the direction adjusting assembly is connected with the magnetic base, the other end of the direction adjusting assembly is connected with the fixed end of the clamping assembly, the clamping end of the clamping assembly clamps the sensor, the magnet is installed on the outer wheel of the elevator speed governor and moves with the outer wheel, and the sensor is used for collecting the rated speed of the elevator speed governor through the magnet.

[0006] Optionally, the magnetic base comprises a metal shell, a permanent magnet and a rotary switch, the permanent magnet is installed in the metal shell, the rotary switch is installed on the outer surface of the metal shell and is connected with the permanent magnet to rotate the magnetic pole direction of the permanent magnet.

[0007] Optionally, the direction adjusting assembly comprises a first support arm and a second support arm connected through a rotary locking piece, one end of the first support arm away from the second support arm and one end of the second support arm away from the first support arm are each provided with a ball joint, the first support arm is connected with the magnetic base through the corresponding ball joint, and the second support arm is connected with the fixed end of the clamping assembly through the corresponding ball joint.

[0008] Optionally, the ball joint comprises a matching ball head and a ball socket, the ball socket accommodates and supports the ball head, the ball head is arranged at one end of the first support arm away from the second support arm, or one end of the second support arm away from the first support arm, and the ball socket is arranged at the fixed end of the magnetic base or the clamping assembly.

[0009] Alternatively, the ball head is arranged at the fixed end of the magnetic base or the clamping assembly, and the ball socket is arranged at one end of the first support arm away from the second support arm, or one end of the second support arm away from the first support arm.

[0010] Optionally, the connection part of the first support arm and the second support arm is provided with a threaded hole, the rotating locking member comprises a nut and a bolt, and the bolt sequentially penetrates through the threaded holes and the nut.

[0011] Optionally, the head of the bolt is sleeved with a holding member.

[0012] Optionally, the clamping end of the clamping assembly comprises an open ring and a locking rod, the open ring is provided with an opening at one end away from the fixed end of the clamping assembly 3, both ends of the opening are provided with convex walls extending away from the fixed end of the clamping assembly, the convex walls at both ends of the opening are oppositely arranged and are provided with through holes, the two through holes are oppositely arranged and are provided with internal threads in the two through holes, the locking rod is provided with external threads matched with the internal threads and is threadedly connected with the convex walls.

[0013] Optionally, the clamping assembly further comprises a fixed small hole axially parallel to the open ring, the fixed small hole is communicated with the open ring, and the hole diameter of the fixed small hole is smaller than the inner diameter of the open ring.

[0014] Optionally, the elevator speed measuring device further comprises a display, and the display is in communication connection with the sensor.

[0015] Optionally, the elevator speed measuring device further comprises a processor, and the processor is in communication connection with the sensor and the display respectively.

[0016] The beneficial effects of the elevator speed measuring device are as follows:

[0017] The entire device can be detachably fixed to the surface of the elevator speed governor using a magnetic base, facilitating speed measurement. The angle and position of the sensor can be adjusted as needed using the direction adjustment and clamping components to ensure optimal measurement accuracy and improve adaptability, enabling use with different models of speed governors. A magnet is then mounted on the outer wheel of the elevator speed governor and moves with it, allowing for non-contact speed measurement via the sensor. This not only avoids mechanical wear and extends service life but also does not affect the operation of the speed governor itself. This invention, through a magnetic base, direction adjustment components, clamping components, sensor, and magnet, enables direct non-contact speed measurement of the elevator speed governor, eliminating the need for operator equipment from the manufacturer or maintenance unit, and providing more objective and accurate speed measurement results. Attached Figure Description

[0018] Figure 1 A schematic diagram of the elevator speed measuring device provided in this embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the clamping assembly provided in an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Magnetic base; 2. Direction adjustment assembly; 21. First support arm; 22. Second support arm; 23. Handling component; 3. Clamping assembly; 31. Opening ring; 32. Locking rod; 33. Fixing hole; 4. Sensor; 5. Magnet; 6. Display; 7. Elevator speed limiter; 71. Outer wheel. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0023] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0024] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] In response to the problems existing in the aforementioned related technologies, such as Figure 1 As shown in the figure, an elevator speed measuring device provided by this utility model includes a magnetic base 1, a direction adjustment component 2, a clamping component 3, a sensor 4, and a magnet 5. The magnetic base 1 is used to magnetically attach to the surface of the elevator speed governor 7. One end of the direction adjustment component 2 is connected to the magnetic base 1, and the other end of the direction adjustment component 2 is connected to the fixed end of the clamping component 3. The clamping end of the clamping component 3 clamps the sensor 4. The magnet 5 is installed on the outer wheel 71 of the elevator speed governor 7 and moves with the outer wheel 71. The sensor 4 is used to collect the rated speed of the elevator speed governor 7 through the magnet 5.

[0026] Specifically, the magnetic base 1 contains a magnet that can magnetically adhere to the surface of the elevator speed governor 7, specifically to the surface of the fixed housing of the elevator speed governor 7, thereby fixing the entire device to the housing of the elevator speed governor 7. One end of the direction adjustment component 2 is connected to the magnetic base 1, and the other end is connected to the fixed end of the clamping component 3. This can be used to adjust the orientation of the sensor 4 held by the clamping component 3 to achieve the speed measuring position. The magnet 5 is mounted on the outer wheel 71 of the elevator speed governor 7 and moves with the outer wheel 71. The sensor 4 can be a non-contact sensor such as a Hall sensor. By using the direction adjustment component 2 and the clamping component 3 to position the sensor 4 corresponding to the outer wheel 71 of the elevator speed governor 7, when the magnet 5 moves with the outer wheel 71 of the elevator speed governor 7 to the position corresponding to the sensor 4, the sensor 4 can generate an induced current and generate a pulse signal. The rotation speed of the magnet 5 can be determined by the obtained pulse signal, thereby determining the rated speed of the elevator speed governor 7.

[0027] In this embodiment, the entire device can be detachably fixed to the surface of the elevator speed governor 7 via the magnetic base 1, facilitating speed measurement. The angle and position of the sensor 4 can be adjusted as needed via the direction adjustment component 2 and the clamping component 3 to ensure optimal measurement accuracy and improve adaptability, enabling its use with different models of speed governors. The magnet 5 is then mounted on the outer wheel 71 of the elevator speed governor 7 and moves with it, allowing for non-contact speed measurement of the elevator speed governor 7 via the sensor 4. This not only avoids mechanical wear and extends service life but also does not affect the operation of the speed governor itself. This invention, through the magnetic base 1, direction adjustment component 2, clamping component 3, sensor 4, and magnet 5, enables direct non-contact speed measurement of the elevator speed governor 7, eliminating the need for operator equipment from the manufacturer or maintenance unit, and providing more objective and accurate speed measurement results.

[0028] Optionally, the magnetic base 1 includes a metal shell, a permanent magnet, and a rotary switch. The permanent magnet is installed in the metal shell, and the rotary switch is installed on the outer surface of the metal shell and connected to the permanent magnet to rotate the magnetic pole direction of the permanent magnet.

[0029] Specifically, the magnetic base 1 includes a metal shell, a permanent magnet, and a rotary switch. The metal shell is made of soft magnetic material, the permanent magnet is installed inside the metal shell, and the rotary switch is installed on the outer surface of the metal shell and connected to the permanent magnet. By turning the rotary switch, the permanent magnet is rotated, thus changing the direction of its magnetic poles. When the two poles (N pole or S pole) of the permanent magnet are aligned vertically, that is, when the N pole or S pole of the permanent magnet is directly facing the bottom surface of the soft magnetic material, the metal shell of the soft magnetic material is exposed to the strong magnetic field of the permanent magnet, and the tiny magnetic domains inside the soft magnetic material... The micro-magnets at the molecular level inside the material rearrange themselves so that their magnetic moments align, resulting in the entire soft magnetic material exhibiting stronger net magnetism. In other words, the magnetic base 1 is magnetized and has strong magnetism in this direction, thus enabling it to adhere to the metal surface of the elevator speed limiter 7. However, when the two poles of the permanent magnet are in the horizontal direction, that is, when the center of the N pole or S pole is directly opposite the bottom surface of the soft magnetic material, the magnetic base 1 is not magnetized. Therefore, there is almost no magnetic force on the magnetic base 1 at this time, and it can be easily removed from the metal surface of the elevator speed limiter 7.

[0030] Optionally, the direction adjustment assembly 2 includes a first support arm 21 and a second support arm 22 connected by a rotary locking member. The end of the first support arm 21 away from the second support arm 22 and the end of the second support arm 22 away from the first support arm 21 are both provided with ball joints. The first support arm 21 is connected to the magnetic base 1 through the corresponding ball joint, and the second support arm 22 is connected to the fixed end of the clamping assembly 3 through the corresponding ball joint.

[0031] Specifically, such as Figure 1 As shown, the direction adjustment assembly 2 includes a first support arm 21 and a second support arm 22 connected by a rotary locking member. The end of the first support arm 21 away from the second support arm 22 and the end of the second support arm 22 away from the first support arm 21 are both provided with ball joints. The first support arm 21 is connected to the magnetic base 1 through the corresponding ball joint, and the second support arm 22 is connected to the fixed end of the clamping assembly 3 through the corresponding ball joint. The angles of the first support arm 21, the second support arm 22 and the clamping assembly 3 can be changed through the ball joints. When the first support arm 21 and the second support arm 22 are adjusted to a suitable angle, the first support arm 21 and the second support arm 22 are locked by the rotary locking member for speed measurement.

[0032] Optionally, the ball joint includes a matching ball head and a ball socket, the ball socket accommodating and supporting the ball head, the ball head being located at the end of the first support arm 21 away from the second support arm 22, or at the end of the second support arm 22 away from the first support arm 21, and the ball socket being located at the fixed end of the magnetic base 1 or the clamping assembly 3;

[0033] Alternatively, the ball head may be located at the fixed end of the magnetic base 1 or the clamping assembly 3, and the ball socket may be located at the end of the first support arm 21 away from the second support arm 22, or at the end of the second support arm 22 away from the first support arm 21.

[0034] Specifically, the ball joint includes a matching ball head and a ball socket. The ball socket accommodates and supports the ball head. The ball socket is designed as a concave spherical structure with an internal coating to reduce friction and wear of the ball head during rotation. The ball head is spherical with a smooth and rounded surface, enabling smooth rotation and reducing wear. It is located at the end of the first support arm 21 away from the second support arm 22, or at the end of the second support arm 22 away from the first support arm 21. The ball socket is located at the fixed end of the magnetic base 1 or the clamping assembly 3. Alternatively, the ball head is located at the fixed end of the magnetic base 1 or the clamping assembly 3, and the ball socket is located at the end of the first support arm 21 away from the second support arm 22, or at the end of the second support arm 22 away from the first support arm 21. This connects the magnetic base 1 and the first support arm 21, as well as the second support arm 22 and the clamping assembly 3, allowing the first support arm 21, the second support arm 22, and the clamping assembly 3 to rotate based on the ball joint to adjust the angle.

[0035] Optionally, threaded holes are provided at the connection points of the first support arm 21 and the second support arm 22, and the rotary locking component includes a nut and a bolt, with the bolt passing through each of the threaded holes and the nut in sequence.

[0036] Specifically, threaded holes are provided at the connection between the first support arm 21 and the second support arm 22. The rotating locking component includes a nut and a bolt. The bolt body passes through each threaded hole in sequence and is locked with a nut. By rotating the nut or bolt, the friction between the first support arm 21 and the second support arm 22 can be adjusted, thereby locking the first support arm 21 and the second support arm 22.

[0037] Optionally, the head of the bolt is fitted with a retainer 23.

[0038] Specifically, such as Figure 1 As shown, the head of the bolt is fitted with a holding member 23, which can be polygonal in shape to facilitate gripping and thus facilitate rotation of the bolt.

[0039] Optionally, the clamping end of the clamping assembly 3 includes an open ring 31 and a locking rod 32. The open ring 31 has an opening at one end away from the fixed end of the clamping assembly 3, and both ends of the opening have convex walls extending in a direction away from the fixed end of the clamping assembly 3. The convex walls at both ends of the opening are arranged opposite to each other and each has a through hole. The two through holes are arranged opposite to each other and each of the two through holes has an internal thread. The locking rod 32 has an external thread that matches the internal thread and is threadedly connected to the convex wall.

[0040] Specifically, such as Figure 2 As shown, the clamping end of the clamping assembly 3 includes an open ring 31 and a locking rod 32. The open ring 31 is made of metal, such as aluminum alloy, and its surface is coated to improve the wear resistance and corrosion resistance of the open ring 31. The open ring 31 has an opening at one end away from the fixed end of the clamping assembly 3. Both ends of the opening have convex walls extending in the direction away from the fixed end of the clamping assembly 3. The convex walls at both ends of the opening are arranged opposite each other and each has a through hole. The two through holes are arranged opposite each other and each has an internal thread. The locking rod 32 has an external thread that matches the internal thread and is threadedly connected to the convex wall. When the sensor 4 is placed in the open ring 31, the locking rod 32 can be rotated to reduce the ring diameter of the open ring 31 and increase the friction between the open ring 31 and the sensor 4, thereby fixing the sensor 4. After the detection is completed, the locking rod 32 can be rotated to increase the ring diameter of the open ring 31 and reduce the friction between the open ring 31 and the sensor 4, thereby removing the sensor 4.

[0041] Optionally, the clamping assembly 3 further includes a fixing hole 33 parallel to the axial direction of the open ring 31, the fixing hole 33 communicating with the open ring 31, and the diameter of the fixing hole 33 being smaller than the inner diameter of the open ring 31.

[0042] Specifically, such as Figure 2As shown, the clamping assembly 3 also includes a fixing hole 33 parallel to the axial direction of the open ring 31. The fixing hole 33 communicates with the open ring 31, and the diameter of the fixing hole 33 is smaller than the inner diameter of the open ring 31, so as to clamp other types of sensors through the fixing hole 33.

[0043] Optionally, the elevator speed measuring device further includes a display 6, which is communicatively connected to the sensor 4.

[0044] Specifically, such as Figure 1 As shown, the elevator speed measuring device also includes a display 6, which is connected to the sensor 4 for displaying the rated speed. The display 6 can be an LCD display to clearly show the rated speed.

[0045] Optionally, the elevator speed measuring device further includes a processor, which is communicatively connected to the sensor 4 and the display 6.

[0046] Specifically, the elevator speed measuring device also includes a processor, which is connected to the sensor 4 and the display 6 respectively. The processor can use an existing Arduino Uno R3 / R4 development board and burn an existing speed measuring algorithm program to convert the pulse signal of the sensor 4 into a rated speed and transmit it to the display 6 for display.

[0047] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An elevator speed measuring device, characterized in that, The utility model provides a kind of elevator speed limiter sensor, including magnetic base (1), direction adjusting component (2), clamping component (3), sensor (4) and magnet (5), the magnetic base (1) is used to be magnetically adsorbed on the surface of elevator speed limiter (7), one end of the direction adjusting component (2) is connected with the magnetic base (1), the other end of the direction adjusting component (2) is connected with the fixed end of the clamping component (3), the clamping end of the clamping component (3) clamps the sensor (4), the magnet (5) is installed on the outer wheel (71) of the elevator speed limiter (7), and follow the movement of the outer wheel (71), the sensor (4) is used to gather the rated speed of the elevator speed limiter (7) by the magnet (5).

2. The elevator speed measuring device according to claim 1, characterized in that The magnetic base (1) includes a metal shell, a permanent magnet, and a rotary switch. The permanent magnet is installed in the metal shell. The rotary switch is installed on the outer surface of the metal shell and connected with the permanent magnet to rotate the magnetic pole direction of the permanent magnet.

3. The elevator speed measuring device of claim 1, wherein The direction adjusting component (2) includes a first support arm (21) and a second support arm (22) connected by a rotary locking member. The first support arm (21) is distal to the second support arm (22), and the second support arm (22) is distal to the first support arm (21). Both ends of the first support arm (21) and the second support arm (22) are provided with ball joints. The first support arm (21) is connected with the magnetic base (1) through the corresponding ball joint. The second support arm (22) is connected with the fixed end of the clamping component (3) through the corresponding ball joint.

4. The elevator speed measuring device of claim 3, wherein The ball joint includes a matching ball head and a ball socket. The ball socket contains and supports the ball head. The ball head is provided at the end of the first support arm (21) distal to the second support arm (22) or the end of the second support arm (22) distal to the first support arm (21). The ball socket is provided at the magnetic base (1) or the fixed end of the clamping component (3). Alternatively, the ball head is provided at the magnetic base (1) or the fixed end of the clamping component (3), and the ball socket is provided at the end of the first support arm (21) distal to the second support arm (22) or the end of the second support arm (22) distal to the first support arm (21).

5. The elevator speed measuring device of claim 3, wherein Both ends of the first support arm (21) and the second support arm (22) are provided with threaded holes. The rotary locking member includes a nut and a bolt. The bolt sequentially passes through the threaded holes and the nut.

6. The elevator speed measuring device of claim 5, wherein The head of the bolt is sleeved with a holding member (23).

7. The elevator speed measuring device of claim 1, wherein The clamping end of the clamping component (3) includes an open ring (31) and a locking rod (32). The open ring (31) is provided with an opening at one end distal to the fixed end of the clamping component (3). Both ends of the opening have convex walls extending in the direction away from the fixed end of the clamping component (3). The convex walls of both ends of the opening are oppositely arranged and each has a through hole. Two through holes are oppositely arranged, and each has an internal thread. The locking rod (32) is provided with an external thread matching the internal thread and is threadedly connected with the convex walls.

8. The elevator speed measuring device of claim 7, wherein The clamping assembly (3) further comprises a fixed small hole (33) axially parallel to the open ring (31), the fixed small hole (33) being in communication with the open ring (31), and the aperture of the fixed small hole (33) being smaller than the inner diameter of the open ring (31).

9. The elevator speed measuring device of claim 1, wherein Further comprising a display (6) in communication connection with the sensor (4).

10. The elevator speed measuring device of claim 9, wherein Further comprising a processor in communication connection with the sensor (4) and the display (6) respectively.

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