High-speed elevator speed monitoring device and monitoring method thereof
By designing the upper movable cover mechanism and shock-absorbing protection mechanism in the high-speed elevator speed monitoring device, the impact of dust and vibration on the equipment is solved, achieving higher measurement accuracy and longer equipment life.
Patent Information
- Application Number
- CN202510436234.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-05-27
AI Technical Summary
Existing high-speed elevator speed monitoring devices are susceptible to dust and vibration, resulting in reduced measurement accuracy and shortened equipment life.
A high-speed elevator speed monitoring device including an upper movable cover mechanism and a shock-absorbing protection mechanism is designed. The upper movable cover mechanism prevents dust from entering through the hinge and damper, and the shock-absorbing protection mechanism absorbs vibration through the damper and elastic member.
Effectively prevent dust from entering, keep equipment clean, and extend service life; absorb and buffer vibration and impact during elevator operation, ensure that the monitoring device operates stably under high-speed operating conditions, reduce false alarms and faults, extend equipment life and reduce maintenance frequency.
Smart Images
Figure CN120039736A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of elevator speed monitoring devices, and particularly to a high-speed elevator speed monitoring device and its monitoring method. Background Art
[0002] The high-speed elevator speed monitoring device is an important part of the elevator safety system, responsible for monitoring and adjusting the speed of the elevator during operation to ensure that it does not exceed the maximum allowable speed designed, and for real-time monitoring of the actual running speed of the elevator to ensure that the elevator runs smoothly and meets safety standards. Once the elevator is detected to be overspeed or out of control, the device will immediately activate the braking system to stop the elevator smoothly, thus avoiding serious accidents caused by high-speed falls.
[0003] When the common high-speed elevator speed monitoring device is in use, usually the upper end of the elevator speed monitor body is open, which is prone to dust accumulation, reducing its measurement accuracy and resulting in inaccurate speed monitoring. Dust entering the monitor interior may cause circuit short circuits or other mechanical failures, increasing the failure rate of the device and shortening its service life. At the same time, there is no shock-absorbing and protective device installed. During the operation of the high-speed elevator, certain vibrations and impacts will be generated, which may affect the measurement accuracy of the speed monitoring device, may cause loosening, fracture or other forms of damage to the internal components of the device, shortening the service life of the device, and bringing certain adverse effects to the usage process. Therefore, we propose a high-speed elevator speed monitoring device and its monitoring method. Summary of the Invention
[0004] Technical problem to be solved: Aiming at the deficiencies of the prior art, the present invention provides a high-speed elevator speed monitoring device and its monitoring method, which have the advantages of dust protection, shock absorption protection, enhanced safety, etc. Through the upper movable cover mechanism provided, the upper protective movable cover is opened and closed at the upper end of the elevator speed monitor main body through a hinge. Manually pulling the handle can drive the connecting rod to move backward, and at the same time, it can drive the limit connecting plate and the anti-disengagement block to move backward, so that the insertion positioning block is inserted into the inner side of the insertion positioning hole. After releasing the handle, through the action of the first damper and the first elastic member, the anti-disengagement block is inserted into the inner side of the inner anti-disengagement opening for positioning. The upper protective movable cover can play a protective role at the upper end of the elevator speed monitor main body, which can effectively prevent dust and impurities from entering the monitor internal, keep the equipment clean, extend the service life, reduce equipment failures or misoperations caused by foreign objects within a certain range, and improve safety. Through the shock absorption protection mechanism provided, the connecting fixed plate is positioned on both sides of the elevator speed monitor main body. The connecting fixed plate and the connecting limit plate penetrate through the inner side of the inner movable groove and move inside the shock absorption control frame through the action of the second damper and the second elastic member. The limit shock absorption plate is sleeved on the outer wall of the guide plate through the guide hole, which can enhance the guiding stability and at the same time play a limiting role inside the shock absorption control frame. The anti-disengagement limit plate plays a limiting role at the upper end of the connecting limit plate to prevent the connecting limit plate from slipping off. It can absorb and buffer the vibration and impact generated during the operation of the elevator, ensure that the monitoring device can still work stably under high-speed operation conditions, reduce false alarms or failures caused by vibration, reduce the impact of vibration and shock on the monitoring device, can effectively extend its service life, reduce the maintenance and replacement frequency, save operating costs, and can effectively solve the problems in the background technology.
[0005] Technical solution: To achieve the above object, the technical solution adopted by the present invention is: A high-speed elevator speed monitoring device and its monitoring method, including an elevator speed monitor main body, an upper movable cover mechanism is fixedly installed at the upper end of the elevator speed monitor main body, a shock absorption protection mechanism is fixedly installed at the lower end of the elevator speed monitor main body, and the upper movable cover mechanism includes an upper protective movable cover, an insertion positioning block, an inner anti-disengagement opening, an insertion positioning hole, an anti-disengagement block, a limit connecting plate, a first damper, a first elastic member, a connecting rod and a handle.
[0006] Preferably, the upper protective movable cover is located at the upper end of the elevator speed monitor main body, the insertion positioning block is located at one end inside the upper protective movable cover, the inner anti-disengagement opening is opened on the insertion positioning block, and the insertion positioning hole is opened on one side of the upper end of the elevator speed monitor main body.
[0007] Preferably, the anti - detachment block is located inside the insertion positioning hole, the limit connecting plate is located at the rear end of the anti - detachment block, the first damper and the first elastic member are both located at two ends on one side of the limit connecting plate, the connecting rod is located in the middle of one side of the limit connecting plate, and the handle is located at one end of the connecting rod.
[0008] Preferably, one end of the insertion positioning block is fixedly connected to one end inside the upper protective movable cover. One end of the anti - detachment block penetrates through the inner wall of the insertion positioning hole and is fixedly connected to one side of the limit connecting plate. The other side of the limit connecting plate is fixedly connected to one end of the first damper, the first elastic member, and the connecting rod. The other ends of the first damper and the first elastic member are fixedly connected to the inner wall of the elevator speed monitor main body. The other end of the connecting rod penetrates through the inner wall of the elevator speed monitor main body and is fixedly connected to one end of the handle.
[0009] Preferably, the shock - absorbing and protective mechanism includes a connecting fixed plate, a limit shock - absorbing plate, a guiding hole, a connecting limit plate, an anti - detachment limit plate, a second damper, a second elastic member, a positioning connecting plate, a shock - absorbing control frame, a guiding plate, and an inner movable groove. The connecting fixed plates are both located on two sides of the outer wall of the elevator speed monitor main body, and the limit shock - absorbing plate is located at the lower end of the connecting fixed plate and inside the shock - absorbing control frame.
[0010] Preferably, the guiding holes are respectively opened on two sides of the upper end of the limit shock - absorbing plate. The connecting limit plate is located on one side of the upper end of the limit shock - absorbing plate. The anti - detachment limit plate is located at the upper end of the connecting limit plate. The second damper and the second elastic member are evenly arranged at the lower end of the limit shock - absorbing plate, and the second damper is located inside the second elastic member. The positioning connecting plate is located at the lower end of the shock - absorbing control frame. The guiding plates are both located on two sides of the inner wall of the shock - absorbing control frame. The inner movable grooves are respectively opened on two sides of the upper end of the shock - absorbing control frame.
[0011] Preferably, one side of each connecting fixed plate is fixedly connected to two sides of the elevator speed monitor main body. The lower ends of the connecting fixed plate and the connecting limit plate penetrate through the inside of the inner movable groove and are fixedly connected to the upper end of the limit shock - absorbing plate. The lower end of the anti - detachment limit plate is fixedly connected to the upper end of the connecting limit plate. The upper ends of the second damper and the second elastic member are both fixedly connected to the lower end of the limit shock - absorbing plate. The lower ends of the second damper and the second elastic member are both fixedly connected to the lower end of the inner wall of the shock - absorbing control frame.
[0012] Preferably, the lower end of the shock - absorbing control frame is fixedly connected to the upper end of the positioning connecting plate. Both ends of the guiding plate are fixedly connected to two sides of the inner wall of the shock - absorbing control frame. The limit shock - absorbing plate is sleeved on the outer wall of the guiding plate through the guiding hole.
[0013] Preferably, the speed limit wheel is located at the inner center of the elevator speed monitor body. The steel wire rope moves between the two sides at the lower end of the elevator speed monitor body and the speed limit wheel. When the elevator car moves up and down, the speed limit wheel is driven to rotate by the steel wire rope. When the rotation speed is within the rated range, the flyweights of the centrifugal mechanism do not trigger an action because the rotation speed is insufficient and the spring force maintains balance. If the elevator speed exceeds the set threshold due to a fault, the rotation speed of the speed limit wheel increases, and the centrifugal force causes the flyweights or sliders to fly outwards, overcoming the spring resistance and pushing the pawl to catch the brake wheel. The elevator speed monitor body is directly connected to the elevator car (or counterweight) through an independent steel wire rope. When the car moves up and down, it drives the speed limit wheel to rotate synchronously. The elevator speed monitor body is internally equipped with a speed sensor. When the rotation speed of the speed limit wheel exceeds the first threshold, the switch immediately disconnects and sends a signal to the elevator control system to cut off the power supply of the traction machine and brake. If the electrical system fails (such as a power outage), the mechanical monitoring can still work independently. If the elevator continues to accelerate, the centrifugal force causes the flyweights to fly out completely, triggering the mechanical locking device, the speed limit wheel is caught by the pawl and stops rotating. Since the steel wire rope is fixed to the car, the continuous movement of the car will forcibly pull the safety gear connecting rod, causing the safety gear to clamp the guide rail to achieve mechanical braking. The pure mechanical structure does not require external power, and the response time is extremely short (in milliseconds). The design of the centrifugal mechanism needs to balance sensitivity and stability (such as the spring pre-tightening force is adjustable) to avoid false actions caused by vibration or short-term fluctuations, and then feedback the real-time rotation speed to the control system to achieve active monitoring and real-time monitoring of the elevator speed. Its monitoring does not rely on external power but is based on physical laws (the relationship between centrifugal force and speed).
[0014] Advantageous effects: Compared with the prior art, the present invention provides a high-speed elevator speed monitoring device and its monitoring method, which have the following advantageous effects:
[0015] 1. For the high-speed elevator speed monitoring device and its monitoring method, through the upper movable cover mechanism provided, the upper protective movable cover is opened and closed by hinges at the upper end of the elevator speed monitor body. Manually pulling the handle can drive the connecting rod to move backward, and at the same time, it can drive the limit connecting plate and the anti-disengagement block to move backward, so that the insertion positioning block is inserted into the inner side of the insertion positioning hole. After releasing the handle, under the action of the first damper and the first elastic member, the anti-disengagement block is inserted into the inner side of the inner anti-disengagement opening for positioning. The upper protective movable cover can play a protective role at the upper end of the elevator speed monitor body, which can effectively prevent dust and impurities from entering the monitor internal, keep the equipment clean, extend the service life, and reduce equipment failures or misoperations caused by foreign objects within a certain range, improving safety.
[0016] 2. The high-speed elevator speed monitoring device and its monitoring method. Through the shock absorption and protection mechanism provided, the connecting fixing plates are positioned on both sides of the elevator speed monitor main body. The connecting fixing plates and the connecting limit plates penetrate the inner side of the inner activity groove and move inside the shock absorption control frame through the action of the second damper and the second elastic member. The limit shock absorption plate is sleeved on the outer wall of the guide plate through the guide hole, which can enhance the guiding stability and play a limiting role inside the shock absorption control frame at the same time. The anti-disconnection limit plate plays a limiting role at the upper end of the connecting limit plate to prevent the slipping of the connecting limit plate. It can absorb and buffer the vibration and impact generated during the operation of the elevator, ensure that the monitoring device can still work stably under high-speed operation conditions, reduce false alarms or failures caused by vibration, reduce the impact of vibration and shock on the monitoring device, effectively extend its service life, reduce the maintenance and replacement frequency, and save the operation cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a high-speed elevator speed monitoring device and its monitoring method according to the present invention.
[0018] Figure 2 FIG. is a partial structural schematic diagram of the elevator speed monitor main body, the upper movable cover mechanism and the shock absorption and protection mechanism in a high-speed elevator speed monitoring device and its monitoring method according to the present invention.
[0019] Figure 3 FIG. is a partial structural schematic diagram of the upper movable cover mechanism in a high-speed elevator speed monitoring device and its monitoring method according to the present invention.
[0020] Figure 4 FIG. is a partial structural plan view of the upper movable cover mechanism in a high-speed elevator speed monitoring device and its monitoring method according to the present invention.
[0021] Figure 5 FIG. is a partial structural schematic diagram of the shock absorption and protection mechanism in a high-speed elevator speed monitoring device and its monitoring method according to the present invention.
[0022] Figure 6 FIG. is a partial structural exploded schematic diagram of the shock absorption and protection mechanism in a high-speed elevator speed monitoring device and its monitoring method according to the present invention.
[0023] In the figure: 1. Main body of elevator speed monitor; 2. Upper movable cover mechanism; 3. Shock-absorbing and protective mechanism; 201. Upper protective movable cover; 202. Insertion positioning block; 203. Inner anti-disengagement; 204. Insertion positioning hole; 205. Anti-disengagement block; 206. Limit connecting plate; 207. First damper; 208. First elastic member; 209. Connecting rod; 210. Handle; 301. Connecting fixed plate; 302. Limit shock-absorbing plate; 303. Guide hole; 304. Connecting limit plate; 305. Anti-disengagement limit plate; 306. Second damper; 307. Second elastic member; 308. Positioning connecting plate; 309. Shock-absorbing control frame; 310. Guide plate; 311. Inner movable groove. Detailed implementation manners
[0024] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.
[0025] As Figure 1-6 shown, a high-speed elevator speed monitoring device and its monitoring method include a main body 1 of an elevator speed monitor. An upper movable cover mechanism 2 is positioned and installed at the upper end of the main body 1 of the elevator speed monitor, and a shock-absorbing and protective mechanism 3 is positioned and installed at the lower end of the main body 1 of the elevator speed monitor. The upper movable cover mechanism 2 includes an upper protective movable cover 201, an insertion positioning block 202, an inner anti-disengagement 203, an insertion positioning hole 204, an anti-disengagement block 205, a limit connecting plate 206, a first damper 207, a first elastic member 208, a connecting rod 209 and a handle 210, which can effectively prevent dust and impurities from entering the inside of the monitor, keep the equipment clean, extend the service life, and within a certain range, reduce equipment failures or misoperations caused by foreign objects, improving safety. Through the provided upper movable cover mechanism 2, the upper protective movable cover 201 is opened and closed by a hinge at the upper end of the main body 1 of the elevator speed monitor. Manually pulling the handle 210 can drive the connecting rod 209 to move backward, and at the same time can drive the limit connecting plate 206 and the anti-disengagement block 205 to move backward, so that the insertion positioning block 202 is inserted into the inside of the insertion positioning hole 204.
[0026] Furthermore, the upper protective movable cover 201 is located at the upper end of the main body 1 of the elevator speed monitor. The insertion positioning block 202 is located at one end inside the upper protective movable cover 201. The inner anti-disengagement 203 is opened on the insertion positioning block 202. The insertion positioning hole 204 is opened on one side of the upper end of the main body 1 of the elevator speed monitor. The insertion positioning hole 204 and the insertion positioning block 202 are mutually adapted. The anti-disengagement block 205 is inserted into the inside of the inner anti-disengagement 203 for positioning. The upper protective movable cover 201 can play a protective role at the upper end of the main body 1 of the elevator speed monitor.
[0027] Further, the anti - detachment block 205 is located inside the insertion positioning hole 204, the limit connecting plate 206 is located at the rear end of the anti - detachment block 205, the first damper 207 and the first elastic member 208 are both located at the two ends on one side of the limit connecting plate 206, the connecting rod 209 is located in the middle on one side of the limit connecting plate 206, the handle 210 is located at one end of the connecting rod 209. Manually pulling the handle 210 can drive the connecting rod 209 to move backward, and at the same time can drive the limit connecting plate 206 and the anti - detachment block 205 to move backward, so that the anti - detachment block 205 disengages from the inner anti - detachment opening 203, and then the insertion positioning block 202 can be disengaged from the insertion positioning hole 204, and the upper protective movable cover 201 and the elevator speed monitor main body 1 can be opened, facilitating the maintenance of the inside of the elevator speed monitor main body 1.
[0028] Further, one end of the insertion positioning block 202 is fixedly connected to one end of the inner side of the upper protective movable cover 201, one end of the anti - detachment block 205 penetrates through the inner wall of the insertion positioning hole 204 and is fixedly connected to one side of the limit connecting plate 206, the other side of the limit connecting plate 206 is fixedly connected to one end of the first damper 207, the first elastic member 208 and the connecting rod 209, the other ends of the first damper 207 and the first elastic member 208 are fixedly connected to the inner wall of the elevator speed monitor main body 1, and the other end of the connecting rod 209 penetrates through the inner wall of the elevator speed monitor main body 1 and is fixedly connected to one end of the handle 210.
[0029] Further, the shock - absorption and protection mechanism 3 includes a connecting fixing plate 301, a limit shock - absorption plate 302, a guiding hole 303, a connecting limit plate 304, an anti - detachment limit plate 305, a second damper 306, a second elastic member 307, a positioning connecting plate 308, a shock - absorption control frame 309, a guiding plate 310 and an inner movable groove 311. The connecting fixing plates 301 are located on both sides of the outer wall of the elevator speed monitor main body 1, the limit shock - absorption plate 302 is located at the lower end of the connecting fixing plate 301 and inside the shock - absorption control frame 309.
[0030] Further, the guiding holes 303 are respectively opened on both sides of the upper end of the limit shock - absorption plate 302, the connecting limit plate 304 is located on one side of the upper end of the limit shock - absorption plate 302, the anti - detachment limit plate 305 is located at the upper end of the connecting limit plate 304, the second damper 306 and the second elastic member 307 are arranged evenly at the lower end of the limit shock - absorption plate 302 and the second damper 306 is located inside the second elastic member 307, the positioning connecting plate 308 is located at the lower end of the shock - absorption control frame 309, the guiding plates 310 are located on both sides of the inner wall of the shock - absorption control frame 309, and the inner movable grooves 311 are respectively opened on both sides of the upper end of the shock - absorption control frame 309.
[0031] Furthermore, one side of each connecting fixing plate 301 is fixedly connected to both sides of the elevator speed monitor main body 1. The lower ends of the connecting fixing plate 301 and the connecting limiting plate 304 penetrate through the inner side of the inner moving groove 311 and are fixedly connected to the upper end of the limiting shock-absorbing plate 302. The lower end of the anti-disengagement limiting plate 305 is fixedly connected to the upper end of the connecting limiting plate 304. The upper ends of the second damper 306 and the second elastic member 307 are both fixedly connected to the lower end of the limiting shock-absorbing plate 302. The lower ends of the second damper 306 and the second elastic member 307 are both fixedly connected to the lower end of the inner wall of the shock-absorbing control frame 309.
[0032] Furthermore, the lower end of the shock-absorbing control frame 309 is fixedly connected to the upper end of the positioning connecting plate 308. Both ends of the guide plate 310 are fixedly connected to both sides of the inner wall of the shock-absorbing control frame 309. The limiting shock-absorbing plate 302 is sleeved on the outer wall of the guide plate 310 through the guide hole 303.
[0033] Furthermore, the speed limit wheel is located at the inner center of the elevator speed monitor main body 1. The steel wire rope passes through both sides of the lower end of the elevator speed monitor main body 1 and moves between the speed limit wheels. When the elevator car moves up and down, the speed limit wheel is driven to rotate by the steel wire rope. When the rotation speed is within the rated range, the flyweights of the centrifugal mechanism do not trigger an action because the rotational speed is insufficient and the spring force maintains balance. If the elevator speed exceeds the set threshold due to a fault, the rotational speed of the speed limiter wheel increases, and the centrifugal force causes the flyweights or sliders to fly outwards, overcoming the spring resistance and pushing the pawl to catch the brake wheel. The elevator speed monitor main body 1 is directly connected to the elevator car (or counterweight) through an independent steel wire rope. When the car moves up and down, it drives the speed limiter wheel to rotate synchronously. The elevator speed monitor main body 1 is equipped with a built-in speed sensor. When the rotational speed of the speed limit wheel exceeds the first threshold, the switch immediately disconnects, sends a signal to the elevator control system, cuts off the power supply of the traction machine and brakes. If the electrical system fails (such as a power outage), the mechanical monitoring can still work independently. If the elevator continues to accelerate, the centrifugal force causes the flyweights to fly out completely, triggering the mechanical locking device, the speed limit wheel is caught by the pawl and stops rotating. Since the steel wire rope is fixed to the car, the continuous movement of the car will forcibly pull the safety tong link, causing the safety tongs to clamp the guide rail, realizing mechanical braking. The pure mechanical structure does not require external power, and the response time is extremely short (millisecond level). The design of the centrifugal mechanism needs to balance sensitivity and stability (such as the spring preload can be adjusted) to avoid misoperation caused by vibration or short-term fluctuations, and then feedback the real-time rotational speed to the control system to achieve active monitoring and real-time monitoring of the elevator speed. Its monitoring does not rely on external power but is based on physical laws (the relationship between centrifugal force and speed).
[0034] Working principle: A high-speed elevator speed monitoring device and its monitoring method, including the elevator speed monitor main body 1, the upper movable cover mechanism 2 and the shock absorption and protection mechanism 3. The speed limit wheel is located at the inner center of the elevator speed monitor main body 1. The steel wire rope moves between the two sides at the lower end of the elevator speed monitor main body 1 and the speed limit wheel. When the elevator car moves up and down, the speed limit wheel is driven to rotate by the steel wire rope. When the rotation speed is within the rated range, the flyweights of the centrifugal mechanism do not trigger an action because the rotational speed is insufficient and the spring force maintains balance. If the elevator speed exceeds the set threshold due to a fault, the rotational speed of the speed limiter wheel increases, and the centrifugal force causes the flyweights or sliders to be thrown outwards, overcoming the spring resistance and pushing the pawl to catch the brake wheel. The elevator speed monitor main body 1 is directly connected to the elevator car (or counterweight) through an independent steel wire rope. When the car moves up and down, it drives the speed limiter wheel to rotate synchronously. The elevator speed monitor main body 1 is internally equipped with a speed sensor. When the rotational speed of the speed limit wheel exceeds the first threshold, the switch immediately disconnects, sends a signal to the elevator control system, cuts off the power supply of the traction machine and brakes. If the electrical system fails (such as a power outage), the mechanical monitoring can still work independently. If the elevator continues to accelerate, the centrifugal force causes the flyweights to be completely thrown out, triggering the mechanical locking device, the speed limit wheel is caught by the pawl and stops rotating. Since the steel wire rope is fixed to the car, the continuous movement of the car will forcefully pull the safety gear connecting rod, causing the safety gear to clamp the guide rail and realizing mechanical braking. The pure mechanical structure does not require external power, and the response time is extremely short (millisecond level). The design of the centrifugal mechanism needs to balance sensitivity and stability (such as the spring pre-tightening force is adjustable) to avoid misoperation caused by vibration or short-term fluctuations, and then feeds back the real-time rotational speed to the control system to achieve active monitoring and real-time monitoring of the elevator speed. Its monitoring does not rely on external power, but is based on physical laws (the relationship between centrifugal force and speed). Through the set upper movable cover mechanism 2, the upper protective movable cover 201 is opened and closed at the upper end of the elevator speed monitor main body 1 through a hinge. Manually pulling the handle 210 can drive the connecting rod 209 to move backward, and at the same time can drive the limit connecting plate 206 and the anti-disengagement block 205 to move backward, so that the insertion positioning block 202 is inserted into the inner side of the insertion positioning hole 204. After releasing the handle 210, through the action of the first damper 207 and the first elastic member 208, the anti-disengagement block 205 is inserted into the inner side of the inner anti-disengagement opening 203 for positioning. The upper protective movable cover 201 can play a protective role at the upper end of the elevator speed monitor main body 1, effectively preventing dust and impurities from entering the monitor interior, keeping the equipment clean, extending the service life, reducing equipment failures or misoperations caused by foreign objects within a certain range, and improving safety. Through the set shock absorption and protection mechanism 3, the connecting fixing plate 301 is positioned on both sides of the elevator speed monitor main body 1. The connecting fixing plate 301 and the connecting limit plate 304 pass through the inner side of the inner movable groove 311 and move inside the shock absorption control frame 309 through the action of the second damper 306 and the second elastic member 307. The limit shock absorption plate 302 is sleeved on the outer wall of the guide plate 310 through the guide hole 303, which can enhance the guiding stability.Meanwhile, it plays a role in limiting the position inside the shock absorption control frame 309. The anti-disengagement limiting plate 305 plays a role in limiting the position at the upper end of the connecting limiting plate 304, preventing the slippage of the connecting limiting plate 304. It can absorb and buffer the vibration and impact generated during the operation of the elevator, ensure that the monitoring device can still work stably under high-speed operation conditions, reduce false alarms or failures caused by vibration, reduce the impact of vibration and shock on the monitoring device, effectively extend its service life, reduce the maintenance and replacement frequency, and save the operation cost.
[0035] It should be noted that in this article, relational terms such as first and second (No. 1, No. 2, etc.) are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-speed elevator speed monitoring device, comprising an elevator speed monitor body (1), characterized in that: An upper movable cover mechanism (2) is positioned and installed at the upper end of the elevator speed monitor body (1), and a shock-absorbing protection mechanism (3) is positioned and installed at the lower end of the elevator speed monitor body (1). The upper movable cover mechanism (2) comprises an upper protective movable cover (201), an insertion positioning block (202), an inner anti-slip opening (203), an insertion positioning hole (204), an anti-slip block (205), a limit connecting plate (206), a No. 1 damper (207), a No. 1 elastic member (208), a connecting rod (209) and a handle (210).
2. A high-speed elevator speed monitoring device according to claim 1, characterized in that: The upper protective movable cover (201) is located at the upper end of the elevator speed monitor body (1), the insertion positioning block (202) is located at one end of the inner side of the upper protective movable cover (201), the inner anti-slip opening (203) is provided on the insertion positioning block (202), and the insertion positioning hole (204) is provided on one side of the upper end of the elevator speed monitor body (1).
3. A high-speed elevator speed monitoring device according to claim 2, characterized in that: The anti-drop block (205) is located on the inner side of the insertion positioning hole (204), the limiting connecting plate (206) is located at the rear end of the anti-drop block (205), the No. 1 damper (207) and the No. 1 elastic member (208) are both located at two ends of one side of the limiting connecting plate (206), the connecting rod (209) is located in the middle of one side of the limiting connecting plate (206), and the handle (210) is located at one end of the connecting rod (209).
4. A high-speed elevator speed monitoring device according to claim 3, characterized in that: One end of the insertion positioning block (202) is fixedly connected to one end of the inner side of the upper protective movable cover (201); one end of the anti-dropping block (205) penetrates through the inner wall of the insertion positioning hole (204) and is fixedly connected to one side of the limiting connecting plate (206); the other side of the limiting connecting plate (206) is fixedly connected to a damper No. 1 (207), a spring member No. 1 (208) and one end of a connecting rod (209); the other ends of the damper No. 1 (207) and the spring member No. 1 (208) are fixedly connected to the inner wall of the elevator speed monitor body (1); the other end of the connecting rod (209) penetrates through the inner wall of the elevator speed monitor body (1) and is fixedly connected to one end of a handle (210).
5. A high-speed elevator speed monitoring device according to claim 4, characterized in that: The shock absorbing protection mechanism (3) comprises a connecting fixing plate (301), a limiting shock absorbing plate (302), a guide hole (303), a connecting limiting plate (304), an anti-slip limiting plate (305), a second damper (306), a second elastic member (307), a positioning connecting plate (308), a shock absorbing control frame (309), a guide plate (310) and an inner movable groove (311), wherein the connecting fixing plates (301) are both located on both sides of the outer wall of the elevator speed monitor body (1), and the limiting shock absorbing plate (302) is located at the lower end of the connecting fixing plate (301) and on the inner side of the shock absorbing control frame (309).
6. A high-speed elevator speed monitoring device according to claim 5, characterized in that: The guide holes (303) are all opened on both sides of the upper end of the limit damping plate (302), the connecting limit plate (304) is located on one side of the upper end of the limit damping plate (302), the anti-slip limit plate (305) is located on the upper end of the connecting limit plate (304), the second damper (306) and the second elastic member (307) are evenly arranged at the lower end of the limit damping plate (302), and the second damper (306) is located on the inner side of the second elastic member (307), the positioning connecting plate (308) is located at the lower end of the damping control frame (309), the guide plates (310) are all located on both sides of the inner wall of the damping control frame (309), and the inner movable grooves (311) are all opened on both sides of the upper end of the damping control frame (309).
7. A high-speed elevator speed monitoring device according to claim 6, characterized in that: One side of the connecting and fixing plate (301) is fixedly connected to both sides of the elevator speed monitor body (1); the lower ends of the connecting and fixing plate (301) and the connecting and limiting plate (304) pass through the inner side of the inner movable groove (311) and are fixedly connected to the upper end of the limiting and damping plate (302); the lower end of the anti-slip limiting plate (305) is fixedly connected to the upper end of the connecting and limiting plate (304); the upper ends of the No. 2 damper (306) and the No. 2 elastic member (307) are fixedly connected to the lower end of the limiting and damping plate (302); and the lower ends of the No. 2 damper (306) and the No. 2 elastic member (307) are fixedly connected to the lower end of the inner wall of the damping control frame (309).
8. A high-speed elevator speed monitoring device according to claim 7, characterized in that: The lower end of the shock absorbing control frame (309) is fixedly connected to the upper end of the positioning connection plate (308), both ends of the guide plate (310) are fixedly connected to the two sides of the inner wall of the shock absorbing control frame (309), and the limiting shock absorbing plate (302) is sleeved on the outer wall of the guide plate (310) through the guide hole (303).
9. A monitoring method for a high-speed elevator speed monitoring device according to any one of claims 1 to 8, characterized in that: The speed limiting wheel is located in the inner center of the elevator speed monitor body (1). The wire rope runs through both sides of the lower end of the elevator speed monitor body (1) and moves between the speed limiting wheel. When the elevator car moves up and down, the speed limiting wheel is driven to rotate by the wire rope. When the rotation speed is within the rated range, the flying weight of the centrifugal mechanism is not rotating enough, and the spring force maintains balance and does not trigger the action. If the speed of the elevator exceeds the set threshold due to a malfunction, the speed of the speed limiter wheel increases, and the centrifugal force causes the flying weight or the swing block to be thrown outward, overcoming the spring resistance and pushing the ratchet to clamp the brake wheel. The elevator speed monitor body (1) is directly connected to the elevator car (or counterweight) through an independent wire rope. When the car moves up and down, it drives the speed limiter wheel to rotate synchronously. The elevator speed monitor body (1) has a built-in speed sensor. When the speed of the speed limiting wheel exceeds the first threshold, the switch Disconnect immediately and send a signal to the elevator control system to cut off the power supply of the traction machine and brake. If the electrical system fails (such as power outage), the mechanical monitoring can still work independently. If the elevator continues to accelerate, the centrifugal force will cause the flyweight to be completely thrown out, triggering the mechanical locking device. The speed limiting wheel is stuck by the pawl and stops rotating. Since the wire rope is fixed to the car, the continued movement of the car will force the safety clamp connecting rod to clamp the guide rail to achieve mechanical braking. The pure mechanical structure does not require external power and has an extremely short response time (milliseconds). The design of the centrifugal mechanism needs to balance sensitivity and stability (such as adjustable spring preload) to avoid false operation caused by vibration or short-term fluctuations. The real-time speed is then fed back to the control system to achieve active monitoring and real-time monitoring of the elevator speed. Its monitoring does not rely on external power, but is based on the laws of physics (the relationship between centrifugal force and speed).