High-safety detection type travel switch special for elevator and use method of high-safety detection type travel switch

Abstract

The invention discloses a high-safety detection type travel switch special for an elevator and a using method thereof, and relates to the technical field of electrical control, the high-safety detection type travel switch comprises a shell, a controller, a power source and a circuit assembly, the controller is connected with the power source through a signal line, and the circuit assembly is connected with the controller and the power source through signal lines; a controller is installed on the upper portion of the inner wall of the shell, a power source is installed on the right side of the outer wall of the controller, and a circuit assembly is installed on the lower portion of the outer wall of the shell. By installing the circuit assembly, the function of stably and sensitively controlling the stroke of the elevator is achieved, the problems that the safety of the elevator is reduced and maintenance is difficult due to contact type contact abrasion are solved, abrasion and damage caused by frequent contact of contacts can be avoided, the stability and reliability of the stroke switch are improved, and the service life of the elevator is prolonged. The environmental adaptability of the travel switch is improved, the service life of the travel switch is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electrical control, in particular to a highly safe detection-type special travel switch for elevators and a use method thereof. Background Art

[0002] The detection type special travel switch for elevators is an electrical device that triggers the action of electrical contact points based on the contact or displacement of mechanical parts, thereby realizing the control and safety protection of elevator operation. When the mechanical parts of the elevator move to the preset position, the operating head of the switch will be touched, and the mechanical contact will be transmitted to the electrical contact system through the transmission mechanism, so that the contact is closed or disconnected, thereby changing the circuit state and realizing the control of the elevator. According to the different structures and working principles, the travel switch can be divided into many types, such as direct-acting, roller-type, micro-motion and inductive types. In the elevator system, the detection type travel switch is widely used. It can be used to control the speed of opening and closing the car door to ensure that the door opens and closes at the appropriate speed. It can be used for the limit of automatic opening and closing of the door to prevent the door from opening or closing excessively. It can be used for the upper and lower limit protection of the car. When the car moves to the limit position, the travel switch will be triggered to stop the elevator from moving, prevent the car from running out of the track, and ensure the safety of passengers and goods. The conductive performance of the contacts of the existing detection-type elevator-specific travel switch will deteriorate with the increase of use time, causing the heads to age and lead to poor contact. At the same time, the connecting wires of the contacts will break or fall off. During use, the roller may be stuck by debris after a collision, resulting in the inability to drive the contacts. The operating head is deflected and cannot collide with components, and cannot stop when reaching the specified position. In addition, the weakening of the elastic force of the spring sheet will cause the normally closed contacts to fail to close after the position switch is reset, leaving the circuit in an open state, causing the elevator to fail to operate normally, affecting the safety of the elevator.

[0003] Patent document CN105489409B discloses a new type of elevator travel switch device. The above patent is composed of a small shell assembly, a shell assembly, a conversion assembly, and a closing assembly. When the rocker arm is affected by a force of a specified size, it immediately drives the conversion assembly to switch the small shell assembly of the switch to an open or closed state. The shell assembly and the closing assembly provide necessary protection for the switch itself, making the overall safety and controllability, with a small action stroke, high positioning accuracy, and flexible control.

[0004] In summary, the above patent transmits the external force to the spring through the swing rod of the conversion component, and the spring is forced to switch the state of the moving contact silver nail on the moving contact connecting rod to the static contact silver nail on the contact column to open or close. However, there is still room for improvement for the error and safety risk caused by the wear of the contact points during the use of the travel switch, and the problem of reduced safety caused by the wear of the contacts during the use of the travel switch has not been effectively solved; To this end, the present application proposes a high-safety detection-type elevator-specific travel switch and its use method, which can stably and sensitively control the elevator travel, autonomously control the transmission module, monitor the state of the travel switch, and control the temperature and humidity of the travel switch working environment. Summary of the invention

[0005] The object of the present invention is to provide a highly safe detection-type special travel switch for elevators and a method of using the same, so as to solve the technical problems raised in the above-mentioned background technology that the wear of the contact contacts reduces the safety of the elevator and makes maintenance difficult, the elastic force of the return spring decreases during long-term use when the return spring is used for resetting, resulting in incomplete resetting, the travel switch continues to be used even when it fails, which brings safety hazards, and the service life of the travel switch is reduced due to poor temperature and humidity in the working environment.

[0006] To achieve the above object, the present invention provides the following technical solution: a highly safe detection type special travel switch for elevators, comprising a housing, a controller, a power supply and a circuit assembly, wherein the controller is connected to the power supply via a signal line, and the circuit assembly is connected to the controller and the power supply via a signal line; A controller is installed on the upper part of the inner wall of the shell, a power supply is installed on the right side of the outer wall of the controller, and a circuit component is installed on the lower part of the outer wall of the shell; The circuit assembly includes: a contact module and a leveling sensor, wherein the contact module and the leveling sensor are respectively connected to the controller and the power supply through signal lines; A contact module is installed at the middle of the inner wall of the shell, and a leveling sensor is installed at the lower side of the outer wall of the shell.

[0007] Preferably, the circuit assembly further comprises a transmission assembly, and the transmission assembly is respectively connected to the controller and the power supply through signal lines; The transmission module includes: a touch plate, a transmission rod, a rotating rod, a push-back rod, a limiter and a photoelectric sensor. The rotating rod is connected to the touch plate through the transmission rod, the photoelectric sensor is connected to the controller and the power supply through signal lines, and the push-back rod is connected to the environmental motor through a connecting shaft. A touch plate is installed on the upper side of the outer wall of the shell, a transmission rod is installed on the lower side of the outer wall of the touch plate, a rotating rod is installed on the lower side of the outer wall of the transmission rod, a push-back rod is installed on the right side of the outer wall of the rotating rod, a photoelectric sensor is installed on the upper side of the outer wall of the push-back rod, and a limiter is installed on the upper side of the outer wall of the photoelectric sensor.

[0008] Preferably, an environmental component is installed in the middle of the inner wall of the shell, and the environmental component is connected to the controller through a signal line; The environmental components include: a temperature sensor, a humidity sensor, a temperature module, a humidity module and an environmental motor. The temperature sensor and the humidity sensor are connected to the controller through a signal line, and the environmental motor is connected to the controller through a signal line. A temperature sensor is installed on the upper side of the outer wall of the shell, a humidity sensor is installed on the right side of the outer wall of the temperature sensor, a humidity module is installed on the upper part of the inner wall of the shell, temperature modules are installed on both sides of the outer wall of the circuit assembly, and an environmental motor is installed on the upper part of the inner wall of the shell.

[0009] Preferably, the contact module includes: a first normally open contact, a second normally open contact, a first normally closed contact and a second normally closed contact, the first normally open contact and the second normally open contact are connected in parallel and connected to the controller through a signal line, and the first normally closed contact and the second normally closed contact are connected in series and connected to the controller through a signal line; A first normally open contact is installed in the middle of the inner wall of the shell, a second normally open contact is installed on the upper side of the outer wall of the first normally open contact, a first normally closed contact is installed on the lower side of the outer wall of the first normally open contact, and a second normally closed contact is installed on the right side of the outer wall of the first normally closed contact.

[0010] Preferably, a detection component is installed in the middle of the inner wall of the shell, and the detection component is connected to the controller through a signal line; The detection component includes: a sound sensor, a dust sensor and a speed sensor, and the sound sensor, the dust sensor and the speed sensor are connected to the controller through a signal line; A sound sensor is installed on the upper side of the outer wall of the shell, a speed sensor is installed on the right side of the outer wall of the sound sensor, and a dust sensor is installed on the lower part of the inner wall of the shell.

[0011] Preferably, the temperature module comprises: a heating wire, a fan and a filter, the heating wire is connected to the controller via a signal line, and the fan is connected to the environmental motor via a connecting shaft; Fans are installed on both sides of the outer wall of the circuit component, a heating wire is installed on the left side of the outer wall of the fan, and a filter is installed in the middle of the inner wall of the shell.

[0012] Preferably, the humidity module comprises: a water tank, a water valve, a nozzle and a pressurizing unit, and the water valve and the pressurizing unit are connected to the controller via a signal line; A water tank is installed on the upper part of the inner wall of the shell, a water valve is installed on the upper side of the outer wall of the water tank, a pressurizing unit is installed on the upper side of the outer wall of the water valve, and a nozzle is installed on the upper side of the outer wall of the pressurizing unit.

[0013] Preferably, the method of use is: S1: Install the housing on the top of the elevator car, 500mm away from the top of the car; S2: After the elevator car reaches the floor, the controller closes the first normally open contact and the second normally open contact, and disconnects the first normally closed contact and the second normally closed contact; S3: When the elevator car leaves the floor, the controller disconnects the first normally open contact and the second normally open contact, and closes the first normally closed contact and the second normally closed contact.

[0014] Preferably, S2 is specifically: S21: The leveling sensor receives a signal that the elevator car has reached the floor and transmits it to the controller, and the touch panel collides with the elevator car to generate kinetic energy; S22: After the controller receives the signal that the elevator car has reached the floor, it closes the first normally open contact and disconnects the first normally closed contact. The kinetic energy generated by the collision of the touch plate is transmitted to the rotating rod through the transmission rod, driving the rotating rod to rotate. The photoelectric sensor receives the information of the rotation of the rotating rod and transmits it to the controller. The controller closes the second normally open contact and disconnects the second normally closed contact.

[0015] Preferably, S3 is specifically: S31: When the elevator car leaves the floor, the leveling sensor transmits a signal that the elevator car has left the floor to the controller; S32: The controller disconnects the first normally open contact and closes the first normally closed contact; S33: The controller drives the push rod to push the rotating rod back to its original position through the environmental motor, disconnecting the second normally open contact and closing the second normally closed contact.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the function of stably and sensitively controlling the elevator travel by installing a circuit component, solves the problem that the contact-type contact wear reduces the elevator safety and maintenance difficulties, can avoid the wear and damage caused by frequent contact of the contact, improves the stability and reliability of the travel switch, improves the environmental adaptability of the travel switch, prolongs the service life of the travel switch, and reduces the maintenance cost; 2. The present invention realizes the function of autonomously controlling the transmission module by installing a transmission module, solves the problem that the elastic force of the return spring decreases during long-term use in the existing travel switch, resulting in incomplete return, and can reduce the mechanical wear of the travel switch, extend the service life of the travel switch, and reduce the cost of manufacturing and maintaining the travel switch; 3. The present invention realizes the function of monitoring the state of the travel switch by installing a detection component, solves the problem of potential safety hazards caused by continued use of the travel switch when it fails, can timely detect the failure of the travel switch, improves the stability and reliability of the travel switch, and improves the safety of users; 4. The present invention realizes the function of controlling the temperature and humidity of the working environment of the travel switch by installing an environmental component, solves the problem of reduced service life and frequent failures caused by poor temperature and humidity in the working environment of the travel switch, can reduce the failure rate caused by environmental changes, slow down the aging process of the internal components of the travel switch, and improve the overall safety of the elevator system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a front view structural schematic diagram of the present invention; Figure 2 It is a front structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the contact module structure of the present invention; Figure 4 It is a schematic diagram of the structure of the temperature module of the present invention; Figure 5 It is a schematic diagram of the structure of the humidity module of the present invention; Figure 6 It is a schematic diagram of the method for using the travel switch of the present invention; Figure 7 This is a schematic diagram of the operation of the elevator car arrival floor travel switch of the present invention; Figure 8 It is a working schematic diagram of the travel switch for leaving the floor of the car of the present invention.

[0018] In the figure: 1. Shell; 2. Transmission assembly; 3. Touch panel; 4. Sound sensor; 5. Nozzle; 6. Fan; 7. Filter; 8. Controller; 9. Power supply; 10. Contact module; 11. Leveling sensor; 12. Transmission rod; 13. Rotation rod; 14. Push back rod; 15. Limiter; 16. Photoelectric sensor; 17. Temperature sensor; 18. Humidity sensor; 19. Temperature module; 20. Humidity module; 21. Environmental motor; 22. First normally open contact; 23. Second normally open contact; 24. First normally closed contact; 25. Second normally closed contact; 26. Speed ​​sensor; 27. Dust sensor; 28. Heating wire; 29. ​​Water tank; 30. Water valve; 31. Pressurization unit. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a high-safety detection type special travel switch for elevators, comprising a housing 1, a controller 8, a power supply 9 and a circuit component, wherein the controller 8 is connected to the power supply 9 through a signal line, and the circuit component is connected to the controller 8 and the power supply 9 through a signal line; A controller 8 is installed on the upper part of the inner wall of the housing 1, a power supply 9 is installed on the right side of the outer wall of the controller 8, and a circuit component is installed on the lower part of the outer wall of the housing 1; The circuit assembly includes: a contact module 10 and a leveling sensor 11, wherein the contact module 10 and the leveling sensor 11 are respectively connected to the controller 8 and the power supply 9 through signal lines; A contact module 10 is installed at the middle of the inner wall of the housing 1, and a leveling sensor 11 is installed at the lower side of the outer wall of the housing 1; The circuit assembly also includes a transmission assembly 2, which is connected to a controller 8 and a power supply 9 through signal lines; The transmission module 2 includes: a touch panel 3, a transmission rod 12, a rotating rod 13, a push-back rod 14, a stopper 15 and a photoelectric sensor 16. The rotating rod 13 is connected to the touch panel 3 through the transmission rod 12. The photoelectric sensor 16 is connected to the controller 8 and the power supply 9 through signal lines. The push-back rod 14 is connected to the environment motor 21 through a connecting shaft. A touch panel 3 is installed on the upper side of the outer wall of the housing 1, a transmission rod 12 is installed on the lower side of the outer wall of the touch panel 3, a rotating rod 13 is installed on the lower side of the outer wall of the transmission rod 12, a push-back rod 14 is installed on the right side of the outer wall of the rotating rod 13, a photoelectric sensor 16 is installed on the upper side of the outer wall of the push-back rod 14, and a limiter 15 is installed on the upper side of the outer wall of the photoelectric sensor 16; The contact module 10 includes: a first normally open contact 22, a second normally open contact 23, a first normally closed contact 24 and a second normally closed contact 25, the first normally open contact 22 and the second normally open contact 23 are connected in parallel and connected to the controller 8 through a signal line, and the first normally closed contact 24 and the second normally closed contact 25 are connected in series and connected to the controller 8 through a signal line; A first normally open contact 22 is installed at the middle of the inner wall of the housing 1, a second normally open contact 23 is installed at the upper side of the outer wall of the first normally open contact 22, a first normally closed contact 24 is installed at the lower side of the outer wall of the first normally open contact 22, and a second normally closed contact 25 is installed at the right side of the outer wall of the first normally closed contact 24; An environmental component is installed in the middle of the inner wall of the housing 1, and the environmental component is connected to the controller 8 through a signal line; The environmental component includes: a temperature sensor 17, a humidity sensor 18, a temperature module 19, a humidity module 20 and an environmental motor 21. The temperature sensor 17 and the humidity sensor 18 are connected to the controller 8 through a signal line, and the environmental motor 21 is connected to the controller 8 through a signal line; A temperature sensor 17 is installed on the upper side of the outer wall of the housing 1, a humidity sensor 18 is installed on the right side of the outer wall of the temperature sensor 17, a humidity module 20 is installed on the upper part of the inner wall of the housing 1, temperature modules 19 are installed on both sides of the outer wall of the circuit assembly, and an environmental motor 21 is installed on the upper part of the inner wall of the housing 1; The temperature module 19 includes: a heating wire 28, a fan 6 and a filter 7, the heating wire 28 is connected to the controller 8 through a signal line, and the fan 6 is connected to the environment motor 21 through a connecting shaft; Fans 6 are installed on both sides of the outer wall of the circuit assembly, a heating wire 28 is installed on the left side of the outer wall of the fan 6, and a filter screen 7 is installed in the middle of the inner wall of the housing 1; The humidity module 20 includes: a water tank 29, a water valve 30, a nozzle 5 and a pressurizing unit 31, and the water valve 30 and the pressurizing unit 31 are connected to the controller 8 through a signal line; A water tank 29 is installed on the upper inner wall of the housing 1, a water valve 30 is installed on the upper outer wall of the water tank 29, a pressurizing unit 31 is installed on the upper outer wall of the water valve 30, and a nozzle 5 is installed on the upper outer wall of the pressurizing unit 31; Furthermore, the leveling sensor 11 is internally provided with a transmitting coil, a receiving coil, a metal chip and a signal processing circuit. Based on Faraday's law of electromagnetic induction, when the transmitting coil is energized to generate a magnetic field, the receiving coil senses the change in the magnetic field and generates a current signal. The metal chip is used to enhance the distribution and induction effect of the electromagnetic field. When the elevator car moves to the threshold of a certain floor, the metal material of the threshold will affect the distribution of the magnetic field, causing the current signal sensed by the receiving coil to change. After the signal processing circuit amplifies, filters and processes the change in the current, it is determined that the elevator has reached the floor and the information is transmitted to the controller 8. When the elevator reaches the floor, the controller 8 controls the elevator to move to the right of the floor. The control circuit component controls the elevator car, closes the first normally open contact 22, and opens the first normally closed contact 24. During the operation of the travel switch, the temperature sensor 17 and the humidity sensor 18 monitor the temperature and humidity of the environment to ensure that the temperature and humidity will not damage the circuit components, thereby realizing the function of stably and sensitively controlling the elevator travel, solving the problem of contact contact wear reducing elevator safety and maintenance difficulties, avoiding wear and damage caused by frequent contact of contacts, improving the stability and reliability of the travel switch, improving the environmental adaptability of the travel switch, extending the service life of the travel switch, and reducing maintenance costs.

[0023] Example 2: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a highly safe detection type elevator dedicated travel switch, the circuit assembly further comprising a transmission assembly 2, the transmission assembly 2 being connected to a controller 8 and a power supply 9 respectively through signal lines; The transmission module 2 includes: a touch panel 3, a transmission rod 12, a rotating rod 13, a push-back rod 14, a stopper 15 and a photoelectric sensor 16. The rotating rod 13 is connected to the touch panel 3 through the transmission rod 12. The photoelectric sensor 16 is connected to the controller 8 and the power supply 9 through signal lines. The push-back rod 14 is connected to the environment motor 21 through a connecting shaft. A touch panel 3 is installed on the upper side of the outer wall of the housing 1, a transmission rod 12 is installed on the lower side of the outer wall of the touch panel 3, a rotating rod 13 is installed on the lower side of the outer wall of the transmission rod 12, a push-back rod 14 is installed on the right side of the outer wall of the rotating rod 13, a photoelectric sensor 16 is installed on the upper side of the outer wall of the push-back rod 14, and a limiter 15 is installed on the upper side of the outer wall of the photoelectric sensor 16; An environmental component is installed in the middle of the inner wall of the housing 1, and the environmental component is connected to the controller 8 through a signal line; The environmental component includes: a temperature sensor 17, a humidity sensor 18, a temperature module 19, a humidity module 20 and an environmental motor 21. The temperature sensor 17 and the humidity sensor 18 are connected to the controller 8 through a signal line, and the environmental motor 21 is connected to the controller 8 through a signal line; A temperature sensor 17 is installed on the upper side of the outer wall of the housing 1, a humidity sensor 18 is installed on the right side of the outer wall of the temperature sensor 17, a humidity module 20 is installed on the upper part of the inner wall of the housing 1, temperature modules 19 are installed on both sides of the outer wall of the circuit assembly, and an environmental motor 21 is installed on the upper part of the inner wall of the housing 1; Furthermore, when the elevator car reaches a certain floor, the travel switch installed on the upper side of the outer wall of the elevator car collides with the car through the touch plate 3, and the kinetic energy of the collision is transmitted to the rotating rod 13 through the transmission rod 12, so that the rotating rod 13 rotates. The photoelectric sensor 16 is provided with a light source, an optical path and a photoelectric element. Based on the photoelectric effect, a light signal is emitted by the light source, and the optical path focuses the light signal on the photoelectric element to convert the light signal into an electrical signal. When the rotating rod 13 rotates and blocks the light source, the photoelectric element cannot receive the light signal and convert it into an electrical signal, thereby judging that the rotating rod 13 has reached the specified position, and controlling the rotating rod 13. After receiving the signal transmitted by the photoelectric sensor 16, the device 8 controls the second normally open contact 23 to close and the second normally closed contact 25 to disconnect. When the car leaves the floor, the environmental motor 21 drives the push rod 14 to push the rotating rod 13 back to its original position, and the transmission of the light source is restored so that the photoelectric element can receive the light signal and convert it into an electrical signal, thereby realizing the function of the autonomous control transmission module, solving the problem that the elastic force of the reset spring decreases during long-term use in the existing travel switch that causes the travel switch to fail to reset, and can reduce the mechanical wear of the travel switch, extend the service life of the travel switch, and reduce the cost of manufacturing and maintaining the travel switch.

[0024] Example 3: Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 , a highly safe detection type special travel switch for elevators, wherein a detection component is installed in the middle of the inner wall of the housing 1, and the detection component is connected to the controller 8 through a signal line; The detection component includes: a sound sensor 4, a dust sensor 27 and a speed sensor 26, and the sound sensor 4, the dust sensor 27 and the speed sensor 26 are connected to the controller 8 through a signal line; A sound sensor 4 is installed on the upper side of the outer wall of the housing 1, a speed sensor 26 is installed on the right side of the outer wall of the sound sensor 4, and a dust sensor 27 is installed on the lower part of the inner wall of the housing 1; An environmental component is installed in the middle of the inner wall of the housing 1, and the environmental component is connected to the controller 8 through a signal line; The environmental component includes: a temperature sensor 17, a humidity sensor 18, a temperature module 19, a humidity module 20 and an environmental motor 21. The temperature sensor 17 and the humidity sensor 18 are connected to the controller 8 through a signal line, and the environmental motor 21 is connected to the controller 8 through a signal line; A temperature sensor 17 is installed on the upper side of the outer wall of the housing 1, a humidity sensor 18 is installed on the right side of the outer wall of the temperature sensor 17, a humidity module 20 is installed on the upper part of the inner wall of the housing 1, temperature modules 19 are installed on both sides of the outer wall of the circuit assembly, and an environmental motor 21 is installed on the upper part of the inner wall of the housing 1; The temperature module 19 includes: a heating wire 28, a fan 6 and a filter 7, the heating wire 28 is connected to the controller 8 through a signal line, and the fan 6 is connected to the environment motor 21 through a connecting shaft; Fans 6 are installed on both sides of the outer wall of the circuit assembly, a heating wire 28 is installed on the left side of the outer wall of the fan 6, and a filter screen 7 is installed in the middle of the inner wall of the housing 1; The humidity module 20 includes: a water tank 29, a water valve 30, a nozzle 5 and a pressurizing unit 31, and the water valve 30 and the pressurizing unit 31 are connected to the controller 8 through a signal line; A water tank 29 is installed on the upper inner wall of the housing 1, a water valve 30 is installed on the upper outer wall of the water tank 29, a pressurizing unit 31 is installed on the upper outer wall of the water valve 30, and a nozzle 5 is installed on the upper outer wall of the pressurizing unit 31; Furthermore, the sound sensor 4 is internally provided with a microphone, an amplifier and a signal processing unit. When the structure inside the travel switch is loose or blocked by debris, abnormal sound will occur. The diaphragm of the microphone moves due to the vibration of the sound wave. This mechanical movement is converted into an electrical signal. The amplifier amplifies the electrical signal, which is processed by the signal processing unit and transmitted to the controller 8. The controller 8 compares the received sound signal with the normal working sound signal input in advance to determine whether the internal structure of the travel switch is loose or blocked by debris. The speed sensor 26 is internally provided with a laser transmitter, a laser receiver and a measuring circuit. During the movement of the elevator car, the laser transmitter emits laser pulses, which are received by the laser receiver. The formula v=s / t is used, where v represents the speed of the elevator, s represents the displacement of the elevator within a period of time, and t represents the time interval corresponding to the measured displacement. s is calculated by measuring the time difference between the laser emission and the reflection, combined with the speed of light 3×10 8 m / s calculates the displacement of the elevator in the direction of the laser, and obtains the speed v of the elevator car through continuous measurement and calculation. The dust sensor 27 is internally provided with an optical sensor, a light source, a signal amplifier and a digital-to-analog converter. It determines the air concentration in the working environment of the travel switch by injecting light and measuring the degree of light scattering, and transmits the information to the controller 8. When the dust concentration exceeds the preset value of 10mg / m 3When the controller 8 is in operation, the controller 8 adjusts the working environment of the travel switch through the environmental component, drives the fan 6 to rotate through the environmental motor 21, controls the water valve 30 to connect the water tank 29, the pressurizing unit 31 and the nozzle 5 to humidify the environment of the travel switch, reduces the dust concentration by accelerating the air circulation and humidification operations, realizes the function of monitoring the state of the travel switch, solves the safety hazard problem caused by the continued use of the travel switch when it fails, can timely discover the failure of the travel switch, improves the stability and reliability of the travel switch, and improves the safety of users.

[0025] Example 4: Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 , a highly safe detection type special travel switch for elevators, wherein an environmental component is installed in the middle of the inner wall of the housing 1, and the environmental component is connected to the controller 8 through a signal line; The environmental component includes: a temperature sensor 17, a humidity sensor 18, a temperature module 19, a humidity module 20 and an environmental motor 21. The temperature sensor 17 and the humidity sensor 18 are connected to the controller 8 through a signal line, and the environmental motor 21 is connected to the controller 8 through a signal line; A temperature sensor 17 is installed on the upper side of the outer wall of the housing 1, a humidity sensor 18 is installed on the right side of the outer wall of the temperature sensor 17, a humidity module 20 is installed on the upper part of the inner wall of the housing 1, temperature modules 19 are installed on both sides of the outer wall of the circuit assembly, and an environmental motor 21 is installed on the upper part of the inner wall of the housing 1; The temperature module 19 includes: a heating wire 28, a fan 6 and a filter 7, the heating wire 28 is connected to the controller 8 through a signal line, and the fan 6 is connected to the environment motor 21 through a connecting shaft; Fans 6 are installed on both sides of the outer wall of the circuit assembly, a heating wire 28 is installed on the left side of the outer wall of the fan 6, and a filter screen 7 is installed in the middle of the inner wall of the housing 1; The humidity module 20 includes: a water tank 29, a water valve 30, a nozzle 5 and a pressurizing unit 31, and the water valve 30 and the pressurizing unit 31 are connected to the controller 8 through a signal line; A water tank 29 is installed on the upper inner wall of the housing 1, a water valve 30 is installed on the upper outer wall of the water tank 29, a pressurizing unit 31 is installed on the upper outer wall of the water valve 30, and a nozzle 5 is installed on the upper outer wall of the pressurizing unit 31; Furthermore, the temperature sensor 17 is internally provided with a thermistor and a signal processing circuit. Based on the characteristics of the thermistor, that is, the resistivity of the thermistor decreases with the increase of temperature, the resistivity of the thermistor changes when the temperature inside the elevator shaft increases or decreases. The signal processing circuit measures the temperature change of the working environment of the travel switch through the change of the resistivity of the thermistor, and transmits the temperature information to the controller 8. The controller 8 compares the received temperature information with the preset temperature range of -10°C to 40°C. When the temperature exceeds 40°C, the controller 8 controls the power supply 9 to drive the environmental motor 21 to rotate the fan 6 to cool down. When the temperature is lower than -10°C, the controller 8 controls the heating wire 28 to generate heat. At the same time, the fan 6 works under the drive of the environmental motor 21 to blow out hot air to heat up the environment. The humidity sensor 18 is internally provided with a humidity-sensitive capacitor, an electrode, a substrate and a conversion circuit. Based on the change of the humidity-sensitive capacitor, when the humidity in the working environment of the travel switch increases, the humidity in the humidity-sensitive capacitor The humidity-sensitive material absorbs more water vapor, resulting in an increase in the dielectric constant of the humidity-sensitive capacitor, thereby increasing the capacitance value of the humidity-sensitive capacitor. When the ambient humidity decreases, the humidity-sensitive material releases moisture, the dielectric constant decreases, and the capacitance value also decreases accordingly. The change of the humidity-sensitive capacitor is converted into an analog output signal through a conversion circuit and transmitted to the controller 8. The controller 8 compares the received humidity information with the preset humidity range of 40% to 70%. When the humidity is less than 40%, the water stored in the water tank 29 is atomized and sprayed out through the nozzle 5 to humidify the environment. When the humidity is greater than 70%, the fan 6 is driven by the environmental motor 21 to accelerate the circulation of ambient air and adjust the humidity, thereby realizing the function of controlling the temperature and humidity of the working environment of the travel switch, solving the problems of reduced service life and frequent failures caused by poor temperature and humidity in the working environment of the travel switch, reducing the failure rate caused by environmental changes, slowing down the aging process of the internal components of the travel switch, and improving the overall safety of the elevator system.

[0026] Example 5: Please refer to Figure 1 , Figure 2 and Figure 3 , a high-safety detection type special travel switch for elevators, comprising a housing 1, a controller 8, a power supply 9 and a circuit component, wherein the controller 8 is connected to the power supply 9 through a signal line, and the circuit component is connected to the controller 8 and the power supply 9 through a signal line; A controller 8 is installed on the upper part of the inner wall of the housing 1, a power supply 9 is installed on the right side of the outer wall of the controller 8, and a circuit component is installed on the lower part of the outer wall of the housing 1; The circuit assembly includes: a contact module 10 and a leveling sensor 11, wherein the contact module 10 and the leveling sensor 11 are respectively connected to the controller 8 and the power supply 9 through signal lines; A contact module 10 is installed at the middle of the inner wall of the housing 1, and a leveling sensor 11 is installed at the lower side of the outer wall of the housing 1; The circuit assembly also includes a transmission assembly 2, which is connected to a controller 8 and a power supply 9 through signal lines; The transmission module 2 includes: a touch panel 3, a transmission rod 12, a rotating rod 13, a push-back rod 14, a stopper 15 and a photoelectric sensor 16. The rotating rod 13 is connected to the touch panel 3 through the transmission rod 12. The photoelectric sensor 16 is connected to the controller 8 and the power supply 9 through signal lines. The push-back rod 14 is connected to the environment motor 21 through a connecting shaft. A touch panel 3 is installed on the upper side of the outer wall of the housing 1, a transmission rod 12 is installed on the lower side of the outer wall of the touch panel 3, a rotating rod 13 is installed on the lower side of the outer wall of the transmission rod 12, a push-back rod 14 is installed on the right side of the outer wall of the rotating rod 13, a photoelectric sensor 16 is installed on the upper side of the outer wall of the push-back rod 14, and a limiter 15 is installed on the upper side of the outer wall of the photoelectric sensor 16; The contact module 10 includes: a first normally open contact 22, a second normally open contact 23, a first normally closed contact 24 and a second normally closed contact 25, the first normally open contact 22 and the second normally open contact 23 are connected in parallel and connected to the controller 8 through a signal line, and the first normally closed contact 24 and the second normally closed contact 25 are connected in series and connected to the controller 8 through a signal line; A first normally open contact 22 is installed at the middle of the inner wall of the housing 1, a second normally open contact 23 is installed at the upper side of the outer wall of the first normally open contact 22, a first normally closed contact 24 is installed at the lower side of the outer wall of the first normally open contact 22, and a second normally closed contact 25 is installed at the right side of the outer wall of the first normally closed contact 24; Furthermore, there are two forms of non-contact contact triggering modes in the circuit assembly. When the travel switch is used for a long time and the internal part is blocked, so that the transmission module 2 cannot work normally, the photoelectric sensor 16 cannot obtain whether the rotating rod 13 is rotating, that is, it is impossible to judge whether the elevator car has reached the specified floor through the transmission module 2. At this time, the second normally open contact 23 is in an open state, and the second normally closed contact 25 is in a closed state. The controller 8 can obtain whether the elevator car has reached the specified floor through the leveling sensor 11, thereby controlling the elevator travel by controlling the opening and closing of the first normally open contact 22 and the first normally closed contact 24. When the leveling sensor 11 is not accessible due to environmental interference, the controller 8 can obtain the information of the elevator car and the elevator travel through the leveling sensor 11. When judging whether the elevator car has arrived at the designated floor, the first normally open contact 22 is in the disconnected state, the first normally closed contact 24 is in the closed state, and touches the elevator car through the touch plate 3. The transmission rod 12 drives the rotating rod 13 to rotate, which is sensed by the photoelectric sensor 16, and the information is transmitted to the controller 8, thereby controlling the elevator stroke by controlling the second normally open contact 23 and the second normally closed contact 25, realizing the function of maintaining the control of the elevator stroke in the event of a fault, solving the safety problem caused by the failure of the travel switch due to a single contact fault, reducing the voltage pressure borne by a single contact, improving the reliability and adaptability of the travel switch, and extending the service life of the travel switch.

[0027] Working principle: when the elevator car moves to the threshold of a certain floor, the metal material of the threshold will affect the magnetic field distribution, causing the current signal induced by the receiving coil to change. After the signal processing current amplifies, filters and processes the current change, the leveling sensor 11 determines that the elevator has reached the floor and transmits the information to the controller 8. When the elevator reaches the floor, the controller 8 controls the circuit component to control the elevator car, closes the first normally open contact 22, and disconnects the first normally closed contact 24. When the elevator car reaches a certain floor, the travel switch installed on the upper side of the outer wall of the elevator car collides with the car through the touch plate 3. The kinetic energy of the collision is transmitted to the rotating rod 13 through the transmission rod 12, so that the rotating rod 13 rotates. When the rotating rod 13 rotates to block the light source, the photoelectric element inside the photoelectric sensor 16 cannot receive the light signal and convert it into an electrical signal, so as to judge that the rotating rod 13 has reached the specified position. After receiving the signal transmitted by the photoelectric sensor 16, the controller 8 controls the second normally open contact 23 to close and the second normally closed contact 25 to disconnect. When the car leaves the floor, the environmental motor 21 drives the push-back rod 14 to push the rotating rod 13 back to its original position, and the transmission of the light source is restored so that the photoelectric element can receive the light signal and convert it into an electrical signal. The sound sensor 4 transmits the sound signal to the controller 8, and the controller 8 compares the received sound signal with the normal working sound signal input in advance to determine whether the internal structure of the travel switch is loose or blocked by debris. The speed sensor 26 is provided with a laser transmitter, a laser receiver and a measuring circuit. During the movement of the elevator car, the laser transmitter emits laser pulses, which are received by the laser receiver. The formula v=s / t is used, where v represents the speed of the elevator, s represents the displacement of the elevator within a period of time, and t represents the time interval corresponding to the measured displacement. s is calculated by measuring the time difference between the laser emission and the reflection, combined with the speed of light 3×10 8 m / s calculates the displacement of the elevator in the direction of the laser, and obtains the speed v of the elevator car through continuous measurement and calculation. The dust sensor 27 determines the air concentration in the working environment of the travel switch by injecting light and measuring the degree of light scattering, and transmits the information to the controller 8. When the dust concentration exceeds the preset value of 10mg / m 3 When the controller 8 adjusts the working environment of the travel switch through the environmental component, drives the fan 6 to rotate through the environmental motor 21, controls the water valve 30 to connect the water tank 29, the pressurizing unit 31 and the nozzle 5 to humidify the environment of the travel switch, and reduces the dust concentration by accelerating the air circulation and humidification operation; The temperature sensor 17 transmits the temperature information to the controller 8, and the controller 8 compares the received temperature information with the preset temperature range of -10°C to 40°C. When the temperature exceeds 40°C, the controller 8 controls the power supply 9 to drive the environmental motor 21 to rotate the fan 6 to cool down. When the temperature is lower than -10°C, the controller 8 controls the heating wire 28 to generate heat, and at the same time, the fan 6 works under the drive of the environmental motor 21 to blow out hot air to warm up the environment. The humidity sensor 18 converts the change of the humidity-sensitive capacitor into an analog output signal and transmits it to the controller 8. The controller 8 compares the received humidity information with the preset humidity range of 40% to 70%. When the humidity is less than 40%, the water stored in the water tank 29 is sprayed out through the nozzle 5 to humidify the environment. When the humidity is greater than 70%, the fan 6 is driven by the environmental motor 21 to rotate to accelerate the circulation of ambient air and adjust the humidity. When the travel switch is blocked internally during long-term use, causing the transmission module 2 to fail to work normally, the photoelectric sensor 16 cannot obtain whether the rotating rod 13 is rotating, that is, it is impossible to determine whether the elevator car has reached the designated floor through the transmission module 2. At this time, the second normally open contact 23 is in an open state, and the second normally closed contact 25 is in a closed state. The controller 8 can obtain whether the elevator car has reached the designated floor through the leveling sensor 11, thereby controlling the elevator travel by controlling the opening and closing of the first normally open contact 22 and the first normally closed contact 24. When the leveling sensor 11 cannot determine whether the elevator car has reached the designated floor due to environmental interference, the first normally open contact 22 is in an open state, the first normally closed contact 24 is in a closed state, and touches the elevator car through the touch plate 3. The transmission rod 12 drives the rotating rod 13 to rotate, which is sensed by the photoelectric sensor 16 and transmits the information to the controller 8, thereby controlling the elevator travel by controlling the second normally open contact 23 and the second normally closed contact 25.

[0028] 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 highly safe detection type special travel switch for elevators, characterized in that: It comprises a housing (1), a controller (8), a power supply (9) and a circuit component, wherein the controller (8) is connected to the power supply (9) via a signal line, and the circuit component is connected to the controller (8) and the power supply (9) via the signal line; A controller (8) is installed on the upper part of the inner wall of the housing (1), a power supply (9) is installed on the right side of the outer wall of the controller (8), and a circuit component is installed on the lower part of the outer wall of the housing (1); The circuit assembly comprises: a contact module (10) and a leveling sensor (11), wherein the contact module (10) and the leveling sensor (11) are respectively connected to a controller (8) and a power source (9) via signal lines; A contact module (10) is installed at the middle of the inner wall of the shell (1), and a leveling sensor (11) is installed at the lower side of the outer wall of the shell (1).

2. A highly safe detection type special travel switch for elevators according to claim 1, characterized in that: The circuit assembly further comprises a transmission assembly (2), wherein the transmission assembly (2) is connected to the controller (8) and the power supply (9) respectively via signal lines; The transmission module (2) comprises: a touch plate (3), a transmission rod (12), a rotating rod (13), a push-back rod (14), a stopper (15) and a photoelectric sensor (16); the rotating rod (13) is connected to the touch plate (3) via the transmission rod (12); the photoelectric sensor (16) is connected to the controller (8) and the power supply (9) via signal lines; and the push-back rod (14) is connected to the environment motor (21) via a connecting shaft; A touch plate (3) is mounted on the upper side of the outer wall of the housing (1), a transmission rod (12) is mounted on the lower side of the outer wall of the touch plate (3), a rotating rod (13) is mounted on the lower side of the outer wall of the transmission rod (12), a push-back rod (14) is mounted on the right side of the outer wall of the rotating rod (13), a photoelectric sensor (16) is mounted on the upper side of the outer wall of the push-back rod (14), and a limiter (15) is mounted on the upper side of the outer wall of the photoelectric sensor (16).

3. A highly safe detection type special travel switch for elevators according to claim 1, characterized in that: An environmental component is installed in the middle of the inner wall of the housing (1), and the environmental component is connected to the controller (8) via a signal line; The environmental component includes: a temperature sensor (17), a humidity sensor (18), a temperature module (19), a humidity module (20) and an environmental motor (21); the temperature sensor (17) and the humidity sensor (18) are connected to the controller (8) via a signal line, and the environmental motor (21) is connected to the controller (8) via a signal line; A temperature sensor (17) is installed on the upper side of the outer wall of the housing (1), a humidity sensor (18) is installed on the right side of the outer wall of the temperature sensor (17), a humidity module (20) is installed on the upper part of the inner wall of the housing (1), temperature modules (19) are installed on both sides of the outer wall of the circuit assembly, and an environmental motor (21) is installed on the upper part of the inner wall of the housing (1).

4. A highly safe detection type special travel switch for elevators according to claim 1, characterized in that: The contact module (10) comprises: a first normally open contact (22), a second normally open contact (23), a first normally closed contact (24) and a second normally closed contact (25), wherein the first normally open contact (22) and the second normally open contact (23) are connected in parallel and connected to a controller (8) via a signal line, and the first normally closed contact (24) and the second normally closed contact (25) are connected in series and connected to the controller (8) via a signal line; A first normally open contact (22) is mounted in the middle of the inner wall of the housing (1), a second normally open contact (23) is mounted on the upper side of the outer wall of the first normally open contact (22), a first normally closed contact (24) is mounted on the lower side of the outer wall of the first normally open contact (22), and a second normally closed contact (25) is mounted on the right side of the outer wall of the first normally closed contact (24).

5. A highly safe detection type special travel switch for elevators according to claim 1, characterized in that: A detection component is installed in the middle of the inner wall of the housing (1), and the detection component is connected to the controller (8) via a signal line; The detection component comprises: a sound sensor (4), a dust sensor (27) and a speed sensor (26); the sound sensor (4), the dust sensor (27) and the speed sensor (26) are connected to the controller (8) via a signal line; A sound sensor (4) is mounted on the upper side of the outer wall of the housing (1), a speed sensor (26) is mounted on the right side of the outer wall of the sound sensor (4), and a dust sensor (27) is mounted on the lower part of the inner wall of the housing (1).

6. A highly safe detection type special travel switch for elevators according to claim 3, characterized in that: The temperature module (19) comprises: a heating wire (28), a fan (6) and a filter (7); the heating wire (28) is connected to the controller (8) via a signal line, and the fan (6) is connected to the environmental motor (21) via a connecting shaft; Fans (6) are installed on both sides of the outer wall of the circuit assembly, a heating wire (28) is installed on the left side of the outer wall of the fan (6), and a filter screen (7) is installed in the middle of the inner wall of the housing (1).

7. A highly safe detection type special travel switch for elevators according to claim 3, characterized in that: The humidity module (20) comprises: a water tank (29), a water valve (30), a nozzle (5) and a pressurizing unit (31); the water valve (30) and the pressurizing unit (31) are connected to a controller (8) via a signal line; A water tank (29) is installed on the upper part of the inner wall of the housing (1), a water valve (30) is installed on the upper side of the outer wall of the water tank (29), a pressurizing unit (31) is installed on the upper side of the outer wall of the water valve (30), and a spray head (5) is installed on the upper side of the outer wall of the pressurizing unit (31).

8. A method for using a high-safety detection type special travel switch for elevators, applicable to the high-safety detection type special travel switch for elevators according to claim 2, characterized in that: The method of use is: S1: Install the housing (1) on the top of the elevator car, at a distance of 500 mm from the top of the car; S2: After the elevator car reaches the floor, the controller (8) closes the first normally open contact (22) and the second normally open contact (23), and opens the first normally closed contact (24) and the second normally closed contact (25); S3: When the elevator car leaves the floor, the controller (8) disconnects the first normally open contact (22) and the second normally open contact (23), and closes the first normally closed contact (24) and the second normally closed contact (25).

9. The method for using a highly safe detection type special travel switch for elevators according to claim 8, characterized in that: The S2 is specifically: S21: the leveling sensor (11) receives a signal indicating that the elevator car has reached a floor and transmits the signal to the controller (8), and the touch panel (3) collides with the elevator car to generate kinetic energy; S22: After the controller (8) receives a signal indicating that the elevator car has reached a floor, it closes the first normally open contact (22) and disconnects the first normally closed contact (24). The kinetic energy generated by the collision of the touch plate (3) is transmitted to the rotating rod (13) through the transmission rod (12), driving the rotating rod (13) to rotate. The photoelectric sensor (16) receives information about the rotation of the rotating rod (13) and transmits it to the controller (8). The controller (8) closes the second normally open contact (23) and disconnects the second normally closed contact (25).

10. The method for using a highly safe detection type special travel switch for elevators according to claim 8, characterized in that: The S3 is specifically: S31: When the elevator car leaves the floor, the leveling sensor (11) transmits a signal indicating that the elevator car has left the floor to the controller (8); S32: the controller (8) opens the first normally open contact (22) and closes the first normally closed contact (24); S33: The controller (8) drives the push-back rod (14) through the environmental motor (21) to push the rotating rod (13) back to its original position, thereby disconnecting the second normally open contact (23) and closing the second normally closed contact (25).

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