Self-lubricating wear-free elevator safety tongs

Abstract

The invention discloses self-lubricating wear-free elevator safety tongs, and relates to the technical field of elevator safety, the self-lubricating wear-free elevator safety tongs comprise a base, a wedge block, a guide block, a U-shaped spring, a guide rail, a cleaning module, a processor and a power supply, the wedge block is mounted on the upper part of the outer wall of the base, the guide block is mounted on the upper part of the outer wall of the base, and the U-shaped spring is mounted on the upper part of the outer wall of the base; a guide rail is installed in the middle of the outer wall of the base, a cleaning module is installed on the upper portion of the outer wall of the base, a processor is installed on the upper portion of the outer wall of the base, a power source is installed on the upper portion of the outer wall of the base, and the cleaning module is connected with the processor through a signal line. According to the elevator safety tongs, the cleaning module is installed, so that the self-cleaning function of the elevator safety tongs is achieved, the problems of equipment failure caused by blockage and equipment abrasion caused by sand and greasy dirt in long-term use are solved, the service life of the equipment is prolonged, the safety performance in the use process is improved, and the equipment maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of elevator safety, in particular to a self-lubricating and wear-free elevator safety clamp. Background Art

[0002] The elevator safety clamp is an important safety protection device for elevators. Under the control of the speed limiter, the elevator safety clamp will stop the car urgently and clamp it on the guide rail when the elevator speed exceeds the set limit or when the suspension rope breaks and loosens. The elevator safety clamp provides effective protection for the safe operation of the elevator to prevent the elevator car from derailing or passengers from entering the elevator shaft by mistake. The elevator safety clamp consists of two parts: a lifting mechanism and a braking mechanism. It is usually installed on the elevator car or the counterweight frame. When the elevator is abnormal, the speed limiter will drive the safety clamp to operate and achieve emergency stopping by clamping the guide rail; Existing elevator safety clamps have problems such as self-failure, wedge failure, lifting mechanism failure and speed limiter failure, most of which are caused by blockage and wear of the internal equipment of the elevator safety clamp caused by dust, debris, blocky impurities, etc. falling in the elevator shaft during the operation of the elevator. Although the elevator safety clamp can still work in this case, there are certain hidden dangers and the safety of passengers is not guaranteed. Under long-term wear, the maintenance cost of the elevator safety clamp increases, resulting in a waste of resources.

[0003] 1. Patent document CN115872254B discloses an elevator safety clamp. The above patent realizes the characteristics of superior stopping performance, high reliability, good working stability and low production cost, but the above patent cannot realize the self-cleaning function of the elevator safety clamp.

[0004] 2. Patent document CN1182017C discloses an elevator speed limiting safety clamp. The above patent has a very simple structure, saves the space of the top machine room, and saves two steel wire ropes and tensioning wheels from the top roof to the bottom pit, which reduces the production cost and simplifies the installation. However, the above patent cannot achieve the functions of cleaning and lubrication without interfering with each other.

[0005] 3. Patent document CN112279034B discloses an elevator safety clamp. The above patent reduces the braking impact, increases the braking effect of the safety clamp, and reduces equipment loss. However, the above patent cannot realize the function of monitoring the speed and performance of the elevator safety clamp.

[0006] 4. Patent document CN105905741B discloses an elevator safety clamp, which is composed of a left wedge block and a right brake wheel. When braking, the elevator guide rails are clamped from the left and right sides respectively, so that the elevator guide rails are evenly stressed and deformation of the guide rails is avoided. When braking, the connecting column moves upward along the waist hole to increase the pressure between the brake wheel and the elevator guide rails and improve the braking force. At the same time, the up and down movement range of the connecting column is limited, so that the brake plate will not separate from the safety clamp body when braking. However, the above patent cannot realize the function of absorbing dust and debris during the use of the elevator safety clamp.

[0007] In summary, the above patents cannot realize the self-cleaning function of the elevator safety clamp, cannot realize the function of non-interference between cleaning and lubrication, cannot realize the function of monitoring the speed and performance of the elevator safety clamp, and cannot realize the function of absorbing dust and debris during the use of the elevator safety clamp, which leads to equipment failures caused by blockage in long-term use, equipment wear caused by sand and oil, rust on the elevator safety clamp, heat generation when the elevator safety clamp is working, untimely action of the elevator safety clamp, and untimely discovery of debris blockage; To this end, the present application proposes a self-lubricating and wear-free elevator safety clamp that can realize the self-cleaning function of the elevator safety clamp, the function of cleaning and lubrication without interfering with each other, the function of monitoring the speed and performance of the elevator safety clamp, and the function of absorbing dust and debris during the use of the elevator safety clamp. Summary of the invention

[0008] The purpose of the present invention is to provide a self-lubricating and wear-free elevator safety clamp to solve the technical problems proposed in the above background technology that the self-cleaning function of the elevator safety clamp cannot be realized, the function of cleaning and lubrication without interference with each other cannot be realized, the function of speed and performance monitoring of the elevator safety clamp cannot be realized, and the function of absorbing dust and debris during the use of the elevator safety clamp cannot be realized, resulting in equipment failure due to blockage in long-term use, equipment wear caused by sand and oil, rusting of the elevator safety clamp, heat generation when the elevator safety clamp is working, untimely action of the elevator safety clamp and untimely discovery of debris blockage.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solutions: a self-lubricating and wear-free elevator safety clamp, comprising a base, a wedge, a guide block, a U-shaped spring, a guide rail, a cleaning module, a processor and a power supply, wherein a wedge is installed on the upper part of the outer wall of the base, a guide block is installed on the upper part of the outer wall of the base, a U-shaped spring is installed on the upper part of the outer wall of the base, a guide rail is installed in the middle part of the outer wall of the base, a cleaning module is installed on the upper part of the outer wall of the base, a processor is installed on the upper part of the outer wall of the base, a power supply is installed on the upper part of the outer wall of the base, and the cleaning module is connected to the processor through a signal line; The cleaning module includes a first spray port, a second spray port, a pressurizing module and a water storage chamber; A first spray port is installed on the upper part of the outer wall of the base, a second spray port is installed on the middle part of the inner wall of the base, a booster module is installed on the upper part of the outer wall of the base, and a water storage chamber is installed on the upper part of the outer wall of the base; The booster module includes: a second base, a second motor, a transmission shaft, a transmission gear, a rotating shaft, a push rod, a piston, a water inlet, a water outlet and a pressure balance pipe; A second base is installed on the upper part of the outer wall of the base, a second motor is installed on the right side of the inner wall of the second base, a push rod is installed on the middle part of the inner wall of the second base, a piston is installed on the middle part of the inner wall of the second base, a water inlet is installed on the left side of the inner wall of the second base, and a water outlet is installed on the upper side of the inner wall of the second base, the push rod is connected to the transmission gear through a rotating shaft, the transmission gear is connected to the second motor through a transmission shaft, the second motor is connected to the processor through a signal line, and the second motor is connected to the power supply through the signal line.

[0010] Preferably, the inner wall of the water storage chamber is installed with a separation module including: a first valve, a second valve, a first storage chamber and a second storage chamber; A first valve is installed on the left side of the inner wall of the water storage chamber, and a second valve is installed on the right side of the inner wall of the water storage chamber. A first storage chamber is installed on the left side of the inner wall of the water storage chamber, and a second storage chamber is installed on the right side of the inner wall of the water storage chamber. The first valve is connected to the processor via a signal line, the first valve is connected to the power supply via a signal line, the second valve is connected to the processor via a signal line, and the second valve is connected to the power supply via a signal line. The second valve comprises a first base, a fixed iron core, a coil, a spring and a moving iron core; A first base is installed on the left side of the inner wall of the water storage chamber, a fixed iron core is installed on the upper side of the inner wall of the first base, a coil is installed in the middle of the inner wall of the first base, a spring is installed in the middle of the inner wall of the first base, a moving iron core is installed in the middle of the inner wall of the first base, and the fixed iron core is connected to the moving iron core through a spring.

[0011] Preferably, a monitoring module is installed on the upper side of the outer wall of the base, and the monitoring module includes: a speed monitoring component, a weight monitoring component and a sound monitoring component; A speed monitoring component is installed on the upper side of the outer wall of the base, a weight monitoring component is installed on the upper side of the outer wall of the base, and a sound monitoring component is installed on the upper side of the outer wall of the base. The speed monitoring component is connected to the processor through a signal line, the weight monitoring component is connected to the processor through a signal line, the sound monitoring component is connected to the processor through a signal line, and the processor is connected to the power supply through the signal line.

[0012] Preferably, a dust suction module is installed on the upper part of the outer wall of the base, and the dust suction module includes a dust suction port, a storage chamber and an air suction component; A dust suction port is installed on the upper side of the outer wall of the base, a storage chamber is installed on the upper part of the outer wall of the base, and an air suction component is installed on the upper part of the outer wall of the base.

[0013] Preferably, a spray head is installed on the upper part of the outer wall of the base, and the spray head includes: a spray head body, a sealing ring, an adjustment screw and a filter unit; A nozzle body is installed on the upper part of the outer wall of the base, a sealing ring is installed on the upper part of the outer wall of the base, an adjusting screw is installed on the upper part of the outer wall of the base, and a filter unit is installed on the upper part of the outer wall of the base.

[0014] Preferably, a speed sensor and an acceleration sensor are provided inside the speed monitoring component; The speed sensor is equipped with a permanent magnet, a Hall element, a rotating mechanism, an output plug-in and a conversion circuit. When the elevator safety clamp moves, the permanent magnet is driven to rotate. When the rotating permanent magnet passes through the Hall element, a periodically changing magnetic field is generated in the Hall element, causing the output voltage of the Hall element to change. After being processed by the conversion circuit, the changed voltage signal is transmitted to the processor; The acceleration sensor is equipped with a mass block, a damper, an elastic element, a sensitive element and an adaptive circuit. Based on Newton's second law, when the elevator safety clamp experiences acceleration, the mass will be affected by the inertial force. This force causes the elastic element to deform, and then the mechanical deformation is converted into an electrical signal through the sensitive element. The adaptive circuit processes the electrical signal, and the processed electrical signal proportional to the acceleration is transmitted to the processor.

[0015] Preferably, the weight monitoring component is internally provided with a resistance strain gauge, an A / D converter, a signal amplifier and a microprocessor; During the use of the elevator safety clamp, under the action of the dust collection module, magazine particles and dust are sucked into the storage room. The resistance strain gauge undergoes elastic deformation as the weight changes, and the resistance value of the resistance strain gauge changes accordingly. The physical strain is measured by measuring the change in resistance, and the signal is processed by the A / D converter and transmitted to the processor after being amplified by the signal amplifier.

[0016] Preferably, the sound monitoring component is internally provided with a capacitive electret microphone, an A / D converter and a data collector; The sound waves make the electret film inside the condenser electret microphone vibrate, causing the capacitance to change, thereby generating a tiny voltage, which is then processed by the A / D converter and data acquisition device and transmitted to the processor.

[0017] Preferably, the first storage chamber stores stainless steel cleaner, and the second storage chamber stores lubricant.

[0018] Preferably, the air suction assembly comprises an impeller, a connecting shaft and a first motor; An impeller is installed on the upper part of the outer wall of the base, a connecting shaft is installed on the upper part of the outer wall of the base, a first motor is installed on the upper part of the outer wall of the base, the impeller is connected to the first motor through the connecting shaft, the first motor is connected to the processor through a signal line, and the first motor is connected to the power supply through the signal line.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the self-cleaning function of the elevator safety clamp by installing a cleaning module, solves the problem of equipment failure caused by blockage and equipment wear caused by sand and oil during long-term use, prolongs the service life of the equipment, improves the safety performance during use, and reduces the cost of maintaining the equipment; 2. The present invention realizes the functions of cleaning and lubrication without interfering with each other by installing a separation module, solves the problem of rust on the elevator safety clamp and heating when the elevator safety clamp is working, can ensure the performance of the elevator safety clamp, reduce the number of failures of the elevator safety clamp, and improve the safety performance of the elevator safety clamp; 3. The present invention realizes the function of monitoring the speed and performance of the elevator safety clamp by installing a monitoring module, solves the problem that the elevator safety clamp does not act in time and is blocked by debris in time, can slow down the elevator in advance, can detect the change of the weight of the elevator safety clamp in time, and reduce the occurrence of accidents; 4. The present invention realizes the function of absorbing dust and debris during the use of the elevator safety clamp by installing a dust suction module, solves the problem of the elevator safety clamp being blocked by debris and the increased wear caused by the accumulation of debris during operation, can increase the service life of the elevator safety clamp, reduce the cost of maintaining the elevator safety clamp, and improve the safety and reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the front structure of the present invention; Figure 3 It is a schematic diagram of the cleaning module structure of the present invention; Figure 4 It is a schematic diagram of the structure of the boost module of the present invention; Figure 5 It is a schematic diagram of the structure of the partition assembly of the present invention; Figure 6 It is a schematic diagram of the structure of the dust collection module of the present invention; Figure 7 It is a schematic diagram of the structure of the monitoring module of the present invention; Figure 8 It is a schematic diagram of the structure of the shower head of the present invention.

[0021] In the figure: 1, base; 2, wedge block; 3, guide block; 4, U-shaped spring; 5, cleaning module; 6, guide rail; 7, dust suction module; 8, monitoring module; 9, booster module; 10, first spray port; 11, second spray port; 12, water storage chamber; 13, water inlet; 14, water outlet; 15, piston; 16, push rod; 17, pressure balance pipe; 18, rotating shaft; 19, transmission gear; 20, transmission shaft; 21, second base; 22, second motor; 23, first valve; 24, second Valve; 25. First storage chamber; 26. Second storage chamber; 27. First base; 28. Fixed iron core; 29. ​​Coil; 30. Spring; 31. Moving iron core; 32. Dust suction port; 33. First motor; 34. Storage chamber; 35. Impeller; 36. Connecting shaft; 37. Speed ​​monitoring component; 38. Weight monitoring component; 39. Processor; 40. Power supply; 41. Nozzle body; 42. Sealing ring; 43. Sprinkler head; 44. Adjustment screw; 45. Filter unit; 46. Sound monitoring component. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1 See also Figure 1 , Figure 3 and Figure 4 , a self-lubricating and wear-free elevator safety clamp, comprising a base 1, a wedge 2, a guide block 3, a U-shaped spring 4, a guide rail 6, a cleaning module 5, a processor 39 and a power supply 40, wherein the wedge 2 is installed on the upper part of the outer wall of the base 1, the guide block 3 is installed on the upper part of the outer wall of the base 1, the U-shaped spring 4 is installed on the upper part of the outer wall of the base 1, the guide rail 6 is installed in the middle part of the outer wall of the base 1, the cleaning module 5 is installed on the upper part of the outer wall of the base 1, the processor 39 is installed on the upper part of the outer wall of the base 1, the power supply 40 is installed on the upper part of the outer wall of the base 1, and the cleaning module 5 is connected to the processor 39 through a signal line; The cleaning module 5 includes a first spray port 10, a second spray port 11, a booster module 9 and a water storage chamber 12; A first spray port 10 is installed on the upper part of the outer wall of the base 1, a second spray port 11 is installed on the middle part of the inner wall of the base 1, a booster module 9 is installed on the upper part of the outer wall of the base 1, and a water storage chamber 12 is installed on the upper part of the outer wall of the base 1; The boost module 9 includes: a second base 21, a second motor 22, a transmission shaft 20, a transmission gear 19, a rotating shaft 18, a push rod 16, a piston 15, a water inlet 13, a water outlet 14 and a pressure balance pipe 17; A second base 21 is installed on the upper part of the outer wall of the base 1, a second motor 22 is installed on the right side of the inner wall of the second base 21, a push rod 16 is installed in the middle of the inner wall of the second base 21, a piston 15 is installed in the middle of the inner wall of the second base 21, a water inlet 13 is installed on the left side of the inner wall of the second base 21, and a water outlet 14 is installed on the upper side of the inner wall of the second base 21, the push rod 16 is connected to the transmission gear 19 through the rotating shaft 18, the transmission gear 19 is connected to the second motor 22 through the transmission shaft 20, the second motor 22 is connected to the processor 39 through a signal line, and the second motor 22 is connected to the power supply 40 through a signal line; Furthermore, when the elevator safety clamp needs to be cleaned, the cleaning module 4 pressurizes the liquid flowing out of the water storage chamber 12 through the booster module 9, and sprays the elevator safety clamp with liquid through the first spray port 10 and the second spray port 11, thereby realizing the self-cleaning function of the elevator safety clamp, solving the problems of equipment failure caused by blockage and equipment wear caused by sand and oil during long-term use, thereby increasing the service life of the equipment, improving the safety performance during use, and reducing the cost of maintaining the equipment.

[0026] Example 2 See also Figure 1 , Figure 3 and Figure 5, a self-lubricating and wear-free elevator safety clamp, the inner wall of the water storage chamber 12 is installed with a separation module including: a first valve 23, a second valve 24, a first storage chamber 25 and a second storage chamber 26; A first valve 23 is installed on the left side of the inner wall of the water storage chamber 12, a second valve 24 is installed on the right side of the inner wall of the water storage chamber 12, a first storage chamber 25 is installed on the left side of the inner wall of the water storage chamber 12, and a second storage chamber 26 is installed on the right side of the inner wall of the water storage chamber 12, the first valve 23 is connected to the processor 39 through a signal line, the first valve 23 is connected to the power supply 40 through a signal line, the second valve 24 is connected to the processor 39 through a signal line, and the second valve 24 is connected to the power supply 40 through a signal line; The second valve 24 includes a first base 27, a fixed iron core 28, a coil 29, a spring 30 and a moving iron core 31; A first base 27 is installed on the left side of the inner wall of the water storage chamber 12, a fixed iron core 28 is installed on the upper side of the inner wall of the first base 27, a coil 29 is installed in the middle of the inner wall of the first base 27, a spring 30 is installed in the middle of the inner wall of the first base 27, and a moving iron core 31 is installed in the middle of the inner wall of the first base 27, and the fixed iron core 28 is connected to the moving iron core 31 through the spring 30; The first storage chamber 25 stores stainless steel cleaner, and the second storage chamber 26 stores lubricant. Furthermore, when the cleaning module 5 is working, according to the different cleaning work required by the elevator safety clamp, the processor 39 controls the passage between the first valve 23 and the second valve 24 and the power supply 40. When the elevator safety clamp needs a stainless steel cleaner, the processor 39 controls the first valve 23 to open and the second valve 24 to close. When the elevator safety clamp needs a lubricant, the processor 39 controls the first valve 23 to close and the second valve 24 to open, thereby realizing the functions of cleaning and lubrication without interfering with each other, solving the problems of rust on the elevator safety clamp and heat generation when the elevator safety clamp is working, ensuring the performance of the elevator safety clamp, reducing the number of failures of the elevator safety clamp, and improving the safety performance of the elevator safety clamp.

[0027] Example 3 See also Figure 1 and Figure 6 , a self-lubricating and wear-free elevator safety clamp, a dust suction module 7 is installed on the upper part of the outer wall of the base 1, and the dust suction module 7 includes a dust suction port 32, a storage chamber 34 and an air suction component; A dust suction port 32 is installed on the upper side of the outer wall of the base 1, a storage chamber 34 is installed on the upper part of the outer wall of the base 1, and an air suction component is installed on the upper part of the outer wall of the base 1; The air suction assembly includes an impeller 35, a connecting shaft 36 and a first motor 33; An impeller 35 is installed on the upper part of the outer wall of the base 1, a connecting shaft 36 is installed on the upper part of the outer wall of the base 1, a first motor 33 is installed on the upper part of the outer wall of the base 1, the impeller 35 is connected to the first motor 33 through the connecting shaft 36, the first motor 33 is connected to the processor 39 through a signal line, and the first motor 33 is connected to the power supply 40 through a signal line; Furthermore, during the use of the elevator, impurities such as debris, dust, and granular solids may exist in the environment. Through the operation of the dust collection module 7, the impurities are absorbed during use. The processor 39 controls the air suction component, and the first motor 33 drives the impeller 35 to rotate, thereby generating an air pressure difference inside and outside the dust collection module 7, sucking the external air inward, and sucking the impurities into the storage chamber 34 before the impurities fall into the elevator safety clamp, thereby realizing the function of absorbing dust and debris during the use of the elevator safety clamp, solving the problem of the elevator safety clamp being blocked by debris and the increased wear caused by the accumulation of debris during work, and being able to increase the service life of the elevator safety clamp, reduce the cost of maintaining the elevator safety clamp, and improve the safety and reliability of use.

[0028] Example 4 See also Figure 1 and Figure 7 , a self-lubricating and wear-free elevator safety clamp, a monitoring module 8 is installed on the upper side of the outer wall of the base 1, and the monitoring module 8 includes: a speed monitoring component 37, a weight monitoring component 38 and a sound monitoring component 46; A speed monitoring component 37 is installed on the upper side of the outer wall of the base 1, a weight monitoring component 38 is installed on the upper side of the outer wall of the base 1, and a sound monitoring component 46 is installed on the upper side of the outer wall of the base 1. The speed monitoring component 37 is connected to the processor 39 through a signal line, the weight monitoring component 38 is connected to the processor 39 through a signal line, the sound monitoring component 46 is connected to the processor 39 through a signal line, and the processor 39 is connected to the power supply 40 through a signal line; The speed sensor is provided with a permanent magnet, a Hall element, a rotating mechanism, an output plug-in and a conversion circuit. When the elevator safety clamp moves, the permanent magnet is driven to rotate. When the rotating permanent magnet passes through the Hall element, a periodically changing magnetic field is generated in the Hall element, causing the output voltage of the Hall element to change. After being processed by the conversion circuit, the changed voltage signal is transmitted to the processor 39; The acceleration sensor is provided with a mass block, a damper, an elastic element, a sensitive element and an adjustment circuit. Based on Newton's second law, when the elevator safety clamp experiences acceleration, the mass block is acted upon by an inertial force, which causes the elastic element to deform, and then the mechanical deformation is converted into an electrical signal through the sensitive element. The adjustment circuit processes the electrical signal, and the processed electrical signal proportional to the acceleration is transmitted to the processor 39; The weight monitoring component 38 is internally provided with a resistance strain gauge, an A / D converter, a signal amplifier and a microprocessor; During the use of the elevator safety clamp, under the action of the dust collection module 7, the magazine particles and dust are sucked into the storage chamber 34, and the resistance strain gauge undergoes elastic deformation as the weight changes, and the resistance value of the resistance strain gauge changes accordingly. The physical strain is measured by measuring the change in resistance, and the signal is processed by the A / D converter and amplified by the signal amplifier before being transmitted to the processor 39; The sound monitoring component 46 is internally provided with a condenser electret microphone, an A / D converter and a data collector; The sound waves cause the electret film inside the condenser electret microphone to vibrate, causing the capacitance to change, thereby generating a small voltage, which is transmitted to the processor 39 through the signal processed by the A / D converter and the data collector; Furthermore, during the use of the elevator safety clamp, the monitoring module 8 monitors the changes in speed, acceleration, weight and sound of the elevator safety clamp in real time through the speed monitoring component 37, the weight monitoring component 38 and the sound monitoring component 46, and transmits the information to the processor 39 through the signal line. By analyzing the data, it is determined whether the elevator safety clamp in the current state is in a normal working state, thereby realizing the function of monitoring the speed and performance of the elevator safety clamp, solving the problems of the elevator safety clamp not acting in time and not being able to detect blockage by debris in time, being able to slow down the elevator in advance, being able to detect changes in the weight of the elevator safety clamp in time, and reducing the occurrence of accidents.

[0029] Example 5 See also Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7 , a self-lubricating and wear-free elevator safety clamp, comprising a base 1, a wedge 2, a guide block 3, a U-shaped spring 4, a guide rail 6, a cleaning module 5, a processor 39 and a power supply 40, wherein the wedge 2 is installed on the upper part of the outer wall of the base 1, the guide block 3 is installed on the upper part of the outer wall of the base 1, the U-shaped spring 4 is installed on the upper part of the outer wall of the base 1, the guide rail 6 is installed in the middle part of the outer wall of the base 1, the cleaning module 5 is installed on the upper part of the outer wall of the base 1, the processor 39 is installed on the upper part of the outer wall of the base 1, the power supply 40 is installed on the upper part of the outer wall of the base 1, and the cleaning module 5 is connected to the processor 39 through a signal line; The cleaning module 5 includes a first spray port 10, a second spray port 11, a booster module 9 and a water storage chamber 12; A first spray port 10 is installed on the upper part of the outer wall of the base 1, a second spray port 11 is installed on the middle part of the inner wall of the base 1, a booster module 9 is installed on the upper part of the outer wall of the base 1, and a water storage chamber 12 is installed on the upper part of the outer wall of the base 1; The boost module 9 includes: a second base 21, a second motor 22, a transmission shaft 20, a transmission gear 19, a rotating shaft 18, a push rod 16, a piston 15, a water inlet 13, a water outlet 14 and a pressure balance pipe 17; A second base 21 is installed on the upper part of the outer wall of the base 1, a second motor 22 is installed on the right side of the inner wall of the second base 21, a push rod 16 is installed on the middle part of the inner wall of the second base 21, a piston 15 is installed on the middle part of the inner wall of the second base 21, a water inlet 13 is installed on the left side of the inner wall of the second base 21, and a water outlet 14 is installed on the upper side of the inner wall of the second base 21, the push rod 16 is connected to the transmission gear 19 through the rotating shaft 18, the transmission gear 19 is connected to the second motor 22 through the transmission shaft 20, the second motor 22 is connected to the processor 39 through a signal line, and the second motor 22 is connected to the power supply 40 through a signal line; A monitoring module 8 is installed on the upper side of the outer wall of the base 1, and the monitoring module 8 includes: a speed monitoring component 37, a weight monitoring component 38 and a sound monitoring component 46; A speed monitoring component 37 is installed on the upper side of the outer wall of the base 1, a weight monitoring component 38 is installed on the upper side of the outer wall of the base 1, and a sound monitoring component 46 is installed on the upper side of the outer wall of the base 1. The speed monitoring component 37 is connected to the processor 39 through a signal line, the weight monitoring component 38 is connected to the processor 39 through a signal line, the sound monitoring component 46 is connected to the processor 39 through a signal line, and the processor 39 is connected to the power supply 40 through a signal line; The speed sensor is provided with a permanent magnet, a Hall element, a rotating mechanism, an output plug-in and a conversion circuit. When the elevator safety clamp moves, the permanent magnet is driven to rotate. When the rotating permanent magnet passes through the Hall element, a periodically changing magnetic field is generated in the Hall element, causing the output voltage of the Hall element to change. After being processed by the conversion circuit, the changed voltage signal is transmitted to the processor 39; The acceleration sensor is provided with a mass block, a damper, an elastic element, a sensitive element and an adjustment circuit. Based on Newton's second law, when the elevator safety clamp experiences acceleration, the mass block is acted upon by an inertial force, which causes the elastic element to deform, and then the mechanical deformation is converted into an electrical signal through the sensitive element. The adjustment circuit processes the electrical signal, and the processed electrical signal proportional to the acceleration is transmitted to the processor 39; The weight monitoring component 38 is internally provided with a resistance strain gauge, an A / D converter, a signal amplifier and a microprocessor; During the use of the elevator safety clamp, under the action of the dust collection module 7, the magazine particles and dust are sucked into the storage chamber 34, and the resistance strain gauge undergoes elastic deformation as the weight changes, and the resistance value of the resistance strain gauge changes accordingly. The physical strain is measured by measuring the change in resistance, and the signal is processed by the A / D converter and amplified by the signal amplifier before being transmitted to the processor 39; The sound monitoring component 46 is internally provided with a condenser electret microphone, an A / D converter and a data collector; The sound waves cause the electret film inside the condenser electret microphone to vibrate, causing the capacitance to change, thereby generating a small voltage, which is transmitted to the processor 39 through the signal processed by the A / D converter and the data collector; Furthermore, impurities appear inside the elevator safety clamp, and wear and noise occur during operation. The sound monitoring component 46 monitors the sound changes and transmits the signal to the processor 39. After receiving the signal, the processor controls the cleaning module 5 to clean the inside of the elevator safety clamp. During the operation of the elevator, the speed monitoring component 37 monitors the speed and acceleration of the elevator and transmits the data to the processor 39. After the elevator fails, the processor 39 determines the current situation based on the changes in speed and acceleration, issues commands to the elevator safety clamp in advance, and brakes the elevator, thereby achieving quick and advance processing of elevator out-of-control situations, increasing the safety performance of the elevator, and increasing the user's sense of safety.

[0030] Working principle: impurities appear inside the elevator safety clamp, and wear and noise are generated during operation. The sound monitoring component 46 detects the sound change and transmits the signal to the processor 39. After receiving the signal, the processor controls the cleaning module 5 to clean the inside of the elevator safety clamp. The cleaning module 4 pressurizes the liquid flowing out of the water storage chamber 12 through the booster module 9, and sprays the elevator safety clamp with liquid through the first spray port 10 and the second spray port 11. When the cleaning module 5 is working, according to the different cleaning work required by the elevator safety clamp, the processor 39 controls the passage between the first valve 23 and the second valve 24 and the power supply 40. When the elevator safety clamp needs stainless steel cleaner, the processor 39 controls the first valve 23 to open and the second valve 24 to close. When the elevator safety clamp needs lubricant, the processor 39 controls the first valve 23 to close and the second valve 24 to open. During the use of the elevator, there will be impurities such as debris, dust, and granular solids in the environment. Through the operation of the dust collection module 7, the impurities are absorbed during use. The processor 39 controls the air suction component, and the first motor 33 drives the impeller 35 to rotate, so as to generate an air pressure difference inside and outside the dust collection module 7, sucking the external air inward, and sucking the impurities into the storage chamber 34 before the impurities fall into the elevator safety clamp. During the use of the elevator safety clamp, the monitoring module 8 monitors the changes in speed, acceleration, weight and sound of the elevator safety clamp in real time through the speed monitoring component 37, the weight monitoring component 38 and the sound monitoring component 46, transmits the information to the processor 39 through the signal line, and analyzes the data to determine whether the elevator safety clamp is in normal working condition in the current state.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A self-lubricating and wear-free elevator safety clamp, characterized in that: The invention comprises a base (1), a wedge block (2), a guide block (3), a U-shaped spring (4), a guide rail (6), a cleaning module (5), a processor (39) and a power supply (40), wherein the wedge block (2) is mounted on the upper part of the outer wall of the base (1), the guide block (3) is mounted on the upper part of the outer wall of the base (1), the U-shaped spring (4) is mounted on the upper part of the outer wall of the base (1), the guide rail (6) is mounted on the middle part of the outer wall of the base (1), the cleaning module (5) is mounted on the upper part of the outer wall of the base (1), the processor (39) is mounted on the upper part of the outer wall of the base (1), the power supply (40) is mounted on the upper part of the outer wall of the base (1), and the cleaning module (5) is connected to the processor (39) via a signal line; The cleaning module (5) comprises a first spray port (10), a second spray port (11), a pressurizing module (9) and a water storage chamber (12); A first spray port (10) is installed on the upper portion of the outer wall of the base (1), a second spray port (11) is installed on the middle portion of the inner wall of the base (1), a booster module (9) is installed on the upper portion of the outer wall of the base (1), and a water storage chamber (12) is installed on the upper portion of the outer wall of the base (1); The boost module (9) comprises: a second base (21), a second motor (22), a transmission shaft (20), a transmission gear (19), a rotating shaft (18), a push rod (16), a piston (15), a water inlet (13), a water outlet (14), and a pressure balance pipe (17); A second base (21) is mounted on the upper portion of the outer wall of the base (1); a second motor (22) is mounted on the right side of the inner wall of the second base (21); a push rod (16) is mounted on the middle portion of the inner wall of the second base (21); a piston (15) is mounted on the middle portion of the inner wall of the second base (21); a water inlet (13) is mounted on the left side of the inner wall of the second base (21); a water outlet (14) is mounted on the upper side of the inner wall of the second base (21); the push rod (16) is connected to a transmission gear (19) via a rotating shaft (18); the transmission gear (19) is connected to the second motor (22) via a transmission shaft (20); the second motor (22) is connected to a processor (39) via a signal line; and the second motor (22) is connected to a power source (40) via a signal line.

2. A self-lubricating and wear-free elevator safety clamp according to claim 1, characterized in that: The inner wall of the water storage chamber (12) is provided with a partition module comprising: a first valve (23), a second valve (24), a first storage chamber (25) and a second storage chamber (26); A first valve (23) is installed on the left side of the inner wall of the water storage chamber (12), a second valve (24) is installed on the right side of the inner wall of the water storage chamber (12), a first storage chamber (25) is installed on the left side of the inner wall of the water storage chamber (12), and a second storage chamber (26) is installed on the right side of the inner wall of the water storage chamber (12), the first valve (23) is connected to the processor (39) via a signal line, the first valve (23) is connected to the power supply (40) via a signal line, the second valve (24) is connected to the processor (39) via a signal line, and the second valve (24) is connected to the power supply (40) via a signal line; The second valve (24) comprises a first base (27), a fixed iron core (28), a coil (29), a spring (30) and a moving iron core (31); A first base (27) is installed on the left side of the inner wall of the water storage chamber (12); a fixed iron core (28) is installed on the upper side of the inner wall of the first base (27); a coil (29) is installed in the middle of the inner wall of the first base (27); a spring (30) is installed in the middle of the inner wall of the first base (27); a moving iron core (31) is installed in the middle of the inner wall of the first base (27); and the fixed iron core (28) is connected to the moving iron core (31) via the spring (30).

3. A self-lubricating and wear-free elevator safety clamp according to claim 1, characterized in that: A monitoring module (8) is installed on the upper side of the outer wall of the base (1), and the monitoring module (8) comprises: a speed monitoring component (37), a weight monitoring component (38) and a sound monitoring component (46); A speed monitoring component (37) is installed on the upper side of the outer wall of the base (1), a weight monitoring component (38) is installed on the upper side of the outer wall of the base (1), and a sound monitoring component (46) is installed on the upper side of the outer wall of the base (1). The speed monitoring component (37) is connected to the processor (39) via a signal line, the weight monitoring component (38) is connected to the processor (39) via a signal line, the sound monitoring component (46) is connected to the processor (39) via a signal line, and the processor (39) is connected to a power supply (40) via a signal line.

4. A self-lubricating and wear-free elevator safety clamp according to claim 1, characterized in that: A dust suction module (7) is installed on the upper portion of the outer wall of the base (1), and the dust suction module (7) comprises a dust suction port (32), a storage chamber (34) and an air suction component; A dust suction port (32) is installed on the upper side of the outer wall of the base (1), a storage chamber (34) is installed on the upper part of the outer wall of the base (1), and an air suction component is installed on the upper part of the outer wall of the base (1).

5. A self-lubricating and wear-free elevator safety clamp according to claim 1, characterized in that: A spray head (43) is installed on the upper part of the outer wall of the base (1), and the spray head (43) comprises: a spray head body (41), a sealing ring (42), an adjustment screw (44) and a filter unit (45); A nozzle body (41) is installed on the upper part of the outer wall of the base (1), a sealing ring (42) is installed on the upper part of the outer wall of the base (1), an adjustment screw (44) is installed on the upper part of the outer wall of the base (1), and a filter unit (45) is installed on the upper part of the outer wall of the base (1).

6. A self-lubricating and wear-free elevator safety clamp according to claim 3, characterized in that: The speed monitoring component (37) is internally provided with a speed sensor and an acceleration sensor; The speed sensor is provided with a permanent magnet, a Hall element, a rotating mechanism, an output plug-in and a conversion circuit. When the elevator safety clamp moves, the permanent magnet is driven to rotate. When the rotating permanent magnet passes through the Hall element, a periodically changing magnetic field is generated in the Hall element, causing the output voltage of the Hall element to change. After being processed by the conversion circuit, the changed voltage signal is transmitted to the processor (39); The acceleration sensor is internally provided with a mass block, a damper, an elastic element, a sensitive element and an adjustment circuit. Based on Newton's second law, when the elevator safety clamp experiences acceleration, the mass block is affected by the inertial force, which causes the elastic element to deform, and then the mechanical deformation is converted into an electrical signal through the sensitive element. The adjustment circuit processes the electrical signal, and the processed electrical signal proportional to the acceleration is transmitted to the processor (39).

7. A self-lubricating and wear-free elevator safety clamp according to claim 3, characterized in that: The weight monitoring component (38) is internally provided with a resistance strain gauge, an A / D converter, a signal amplifier and a microprocessor; During the use of the elevator safety clamp, under the action of the dust collection module (7), the magazine particles and dust are sucked into the storage chamber (34), and the resistance strain gauge undergoes elastic deformation as the weight changes, and the resistance value of the resistance strain gauge changes accordingly. The physical strain is measured by measuring the change in resistance, and the signal is processed by an A / D converter and amplified by a signal amplifier before being transmitted to a processor (39).

8. A self-lubricating and wear-free elevator safety clamp according to claim 3, characterized in that: The sound monitoring component (46) is internally provided with a condenser electret microphone, an A / D converter and a data collector; The sound waves cause the electret film inside the condenser electret microphone to vibrate, causing the capacitance to change, thereby generating a small voltage, which is then processed by the A / D converter and the data acquisition device and transmitted to the processor (39).

9. A self-lubricating and wear-free elevator safety clamp according to claim 2, characterized in that: The first storage chamber (25) stores stainless steel cleaner, and the second storage chamber (26) stores lubricant.

10. A self-lubricating and wear-free elevator safety clamp according to claim 4, characterized in that: The air suction assembly comprises an impeller (35), a connecting shaft (36) and a first motor (33); An impeller (35) is installed on the upper portion of the outer wall of the base (1), a connecting shaft (36) is installed on the upper portion of the outer wall of the base (1), a first motor (33) is installed on the upper portion of the outer wall of the base (1), the impeller (35) is connected to the first motor (33) via the connecting shaft (36), the first motor (33) is connected to the processor (39) via a signal line, and the first motor (33) is connected to the power supply (40) via the signal line.

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