5G-based distress call system and villa elevator

Abstract

The invention provides a 5G-based distress call system and a villa elevator. The 5G-based distress call system comprises a sensor module. The system can transmit a calling signal and a video stream in real time, so that a calling center can quickly receive and respond to an emergency call, the rescue time is shortened, the life safety is improved, the calling center can know the event occurrence condition in time by monitoring and tracking the state and the emergency condition of a villa elevator in real time, the accuracy and effectiveness of rescue measures are ensured, and the rescue efficiency is improved. Preventive measures are taken, the accident occurrence probability is reduced, safety and reliability are improved, the call center establishes close cooperation with related departments and rescue organizations, rescue resources can be rapidly coordinated and dispatched, accurate position information is provided, the efficiency and the utilization rate of the rescue resources are improved, and through a mobile application program, the rescue resources can be rapidly managed and dispatched. The resident can conveniently send an emergency call signal and receive sound and visual alarm, so that the convenience and accessibility of call for help are improved, and the sense of security of the resident is enhanced.

Description

Technical Field

[0001] The present invention relates to the field of elevators, and in particular to a 5G-based emergency call system and a villa elevator. Background Art

[0002] The correct definition of a villa elevator is a home elevator, that is, an elevator installed in a private residence and used only by a single family member. It can also be installed in a building that is not used by a single family as a tool for a single family to enter their residence, but the public or other residents in the building cannot enter and use it. In traditional villa elevator systems, wired communications or communications based on 2G / 3G networks are often used. These communication technologies may have problems such as slow transmission speed, limited capacity and high latency, which limits the real-time and responsiveness of the emergency call system.

[0003] For example: the Chinese invention patent (application number: CN202010272519.0) discloses an "elevator wireless five-party intercom system based on 5G communication". Its specification discloses: in the five-party intercom system, the intercom in the car is generally connected to the wireless extension in the machine room through a communication line. The elevator moves up and down for a long time, which will inevitably cause damage to the communication line or even disconnection. Once the communication line is disconnected, when an accident occurs in the elevator, it is difficult for the people inside the elevator to get in touch with the maintenance personnel in time, which is not conducive to timely rescue. The above patents can prove the defects of the existing technology.

[0004] Therefore, we made improvements to this and proposed a 5G-based emergency call system and villa elevator. Summary of the invention

[0005] The purpose of the present invention is to address the problems raised by the existing traditional villa elevator systems, which often use wired communication or communication methods based on 2G / 3G networks. These communication technologies may have problems such as slow transmission speed, limited capacity and high delay, which limit the real-time and responsiveness of the rescue system.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following 5G-based emergency call system and villa elevator to improve the above-mentioned problems.

[0007] The specific application is as follows:

[0008] A 5G-based distress call system, comprising:

[0009] a. Sensor module, used to monitor emergency situations in the villa elevator and generate corresponding event signals;

[0010] b. Communication module, connected to the G network, used to transmit event signals to the call center;

[0011] c. Call center module, which receives and processes the transmitted event signals and performs corresponding emergency response;

[0012] d. Monitoring and tracking module, used to monitor the status and emergency situations of the villa elevator in real time and provide relevant information to the call center;

[0013] e. Data analysis and prediction module, which analyzes and predicts the collected data to identify potential problems in advance and reduce the possibility of accidents;

[0014] f. User interface module, including mobile application and alarm system, allowing villa residents to send emergency distress signals via mobile phones and providing audible and visual alarms;

[0015] g. Positioning and navigation module, using positioning technology and map data, quickly determines the location of the villa elevator and transmits this information to emergency response personnel.

[0016] As a preferred technical solution of the present application, the call center module establishes a signal connection channel with the rescue agency, can quickly coordinate and dispatch rescue resources, and provide accurate location information.

[0017] As the preferred technical solution of this application, it also includes a data intelligent analysis and response module, which is used to automatically allocate appropriate rescue resources according to the priority and type of different emergency situations, and provide guidance and suggestions to emergency response personnel.

[0018] As the preferred technical solution of this application, it also includes a background management system for monitoring and managing the operating status of the villa elevator emergency call system, the operating status including equipment health status, fault diagnosis and maintenance.

[0019] As the preferred technical solution of the present application, the call center module also has a remote control function, which can remotely operate and control the villa elevator through the G network so as to take appropriate measures in an emergency, wherein the measures taken are divided into stopping the elevator operation and opening the elevator door.

[0020] A villa elevator comprises a car, a control display mechanism is arranged on the side wall inside the car, a cleaning adjustment mechanism is arranged on the control display mechanism, an escape window is arranged on the top of the car, the control display mechanism comprises a display screen for displaying elevator operation information and a control panel for users to control the operation of the car, the control panel and the display screen are both arranged on the side wall inside the car, and both sides of the bottom end of the control panel are connected to seat plates through rotating shafts and coil springs.

[0021] As a preferred technical solution of the present application, a baffle is fixedly connected to the bottom of the front side of the display screen, and a baffle is also fixedly connected to the top of the front sides of the two seat boards.

[0022] As a preferred technical solution of the present application, the cleaning adjustment mechanism includes two connecting frames respectively arranged on both sides of the control panel, and rectangular grooves are provided at the top and bottom of the front side of the connecting frames. A threaded rod is connected to the inside of the rectangular groove through a bearing, and a motor for driving the threaded rod to rotate is fixedly installed at one end of the rectangular groove.

[0023] As a preferred technical solution of the present application, the cleaning adjustment mechanism also includes two first cleaning rods, both ends of the first cleaning rod are hinged with second cleaning rods, the end of the second cleaning rod is provided with a connecting block, one end of the connecting block is connected to the external thread of the adjacent threaded rod, and one side of the second cleaning rod and the first cleaning rod is provided with a sponge bar.

[0024] As a preferred technical solution of the present application, one end of the second cleaning rod is interspersed with a movable rod, one end of the movable rod is fixedly connected with a pin, one end of the pin is interspersed with one end of the connecting block, a spring is provided between the pin and the second cleaning rod and is sleeved on the outside of the movable rod, and one end of the outer side of the second cleaning rod is provided with a socket for inserting the end of the pin.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the scheme of this application:

[0027] 1. The 5G network-based rescue system can transmit call signals and video streams in real time, enabling the call center to quickly receive and respond to emergency calls, shorten rescue time, and improve life safety. By real-time monitoring and tracking the status and emergency situations of villa elevators, the call center can promptly understand the circumstances of the incident and take appropriate actions to ensure the accuracy and effectiveness of rescue measures. By analyzing and predicting the collected data, the call center can detect potential problems and failures in advance, take preventive measures, reduce the probability of accidents, and improve safety and reliability. The call center establishes close cooperation with relevant departments and rescue agencies, can quickly coordinate and dispatch rescue resources, and provide accurate location information, which improves the efficiency and utilization of rescue resources. Through mobile applications, residents can easily send emergency distress signals and receive sound and visual alarms, which improves the convenience and accessibility of calling for help and enhances residents' sense of security.

[0028] 2. By setting a baffle, the first cleaning rod and the second cleaning rod are in contact with the baffle during the movement, and then the baffle is cooperated to fold the display screen and the seat board. The folded seat board can be used for people who need to rest. The display screen and the seat board are folded at the same time, so that when the car stops in the danger of fainting and the car door cannot be opened, people can escape from the interior of the car through the escape window through the escape ladder formed by the seat board, the control panel and the display screen with the help of lifeguards. The control display mechanism can not only be used for people to control the car and rest, but also for people to climb, so that it is convenient to escape from the interior of the car through the escape window, and the functionality is strong;

[0029] 3. By setting up the cleaning adjustment mechanism, people can operate the motor to make the second cleaning rod and the first cleaning rod move up and down to clean the display screen and the seat board, and can replace the second cleaning rod and the first cleaning rod by pulling the latch. When a single-frame rescue is needed, the second cleaning rod and the first cleaning rod on the top can be removed, folded and installed on the two second cleaning rods on the bottom to support the bottom of the single frame. When the threaded rod at the bottom rotates, the single frame can be driven to move up as a whole, thereby facilitating the rescue personnel at the top of the car to move the stretcher from the escape window out of the car. The cleaning adjustment mechanism can not only be used to clean the display screen and the seat board, but also can be used to assist people in lifting the stretcher during rescue, and has strong functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of the 5G-based emergency call system provided for this application;

[0031] Figure 2 The structural diagram of the villa elevator provided for this application;

[0032] Figure 3 A schematic diagram of the control panel structure of the villa elevator provided for this application;

[0033] Figure 4 A schematic diagram of the structure of the first cleaning rod of the villa elevator provided in this application;

[0034] Figure 5 The villa elevator provided for this application Figure 4 The enlarged structural diagram at A in the middle;

[0035] Figure 6 A schematic diagram of the latch structure of the villa elevator provided for this application;

[0036] Figure 7 A schematic diagram of the cross-sectional structure of the car side wall of the villa elevator provided in this application;

[0037] Figure 8 This is a schematic diagram of the cross-sectional structure of the connecting frame of the villa elevator provided in this application.

[0038] Indicated in the figure:

[0039] 1. Car;

[0040] 2. Control and display mechanism; 201. Control panel; 202. Display screen; 203. Seat board; 204. Baffle;

[0041] 3. Cleaning adjustment mechanism; 301. Connecting frame; 302. Rectangular groove; 303. Motor; 304. Threaded rod; 305. Groove; 306. Connecting rod; 307. First cleaning rod; 308. Second cleaning rod; 309. Connecting block; 310. Movable rod; 311. Latch; 312. Spring; 313. Electromagnet; 314. Socket;

[0042] 4. Escape window. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0044] As mentioned in the background technology, in traditional villa elevator systems, wired communication or communication based on 2G / 3G networks is often used. These communication technologies may have problems such as slow transmission speed, limited capacity and high latency, which limits the real-time and responsiveness of the emergency call system.

[0045] In order to solve this technical problem, the present invention provides a 5G-based emergency call system and a villa elevator, which are applied in the elevator field.

[0046] Specifically, please refer to Figure 1 , the 5G-based emergency call system specifically includes:

[0047] A 5G-based distress call system, comprising:

[0048] a. Sensor module, used to monitor emergency situations in the villa elevator and generate corresponding event signals;

[0049] b. Communication module, connected to the 5G network, used to transmit event signals to the call center;

[0050] c. Call center module, which receives and processes the transmitted event signals and performs corresponding emergency response;

[0051] d. Monitoring and tracking module, used to monitor the status and emergency situations of the villa elevator in real time and provide relevant information to the call center;

[0052] e. Data analysis and prediction module, which analyzes and predicts the collected data to identify potential problems in advance and reduce the possibility of accidents;

[0053] f. User interface module, including mobile application and alarm system, allowing villa residents to send emergency distress signals via mobile phones and providing audible and visual alarms;

[0054] g. Positioning and navigation module, using positioning technology and map data, quickly determines the location of the villa elevator and passes this information to emergency responders. The 5G network-based distress call system can transmit call signals and video streams in real time, enabling the call center to quickly receive and respond to emergency calls, shorten rescue time, and improve life safety. By real-time monitoring and tracking the status and emergency situations of the villa elevator, the call center can promptly understand the circumstances of the incident and take appropriate actions to ensure the accuracy and effectiveness of the rescue measures. By analyzing and predicting the collected data, the call center can detect potential problems and failures in advance, take preventive measures, reduce the probability of accidents, and improve safety and reliability. The call center establishes close cooperation with relevant departments and rescue agencies, can quickly coordinate and dispatch rescue resources, and provide accurate location information, which improves the efficiency and utilization of rescue resources. Through mobile applications, residents can easily send emergency distress signals and receive sound and visual alarms, which improves the convenience and accessibility of calling for help and enhances residents' sense of security.

[0055] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0056] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0057] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0058] Example 1

[0059] Please refer to Figure 1 , a 5G-based distress call system, the call center module establishes a signal connection channel with the rescue agency, can quickly coordinate and dispatch rescue resources, and provide accurate location information.

[0060] Example 2

[0061] The 5G-based emergency call system provided in Example 1 is further optimized. Specifically, Figure 1 As shown, it also includes a data intelligent analysis and response module, which is used to automatically allocate appropriate rescue resources according to the priority and type of different emergency situations, and provide guidance and suggestions to emergency responders.

[0062] Example 3

[0063] The 5G-based distress call system provided in Example 1 or 2 is further optimized. Specifically, Figure 1 As shown, it also includes a background management system for monitoring and managing the operating status of the villa elevator emergency call system, the operating status including equipment health status, fault diagnosis and maintenance.

[0064] Further, such as Figure 1 As shown, the call center module also has a remote control function, which can remotely operate and control the villa elevator through the 5G network so that appropriate measures can be taken in an emergency, and the measures taken are divided into stopping the elevator operation and opening the elevator door.

[0065] Example 4

[0066] Please refer to Figure 2 and Figure 3 A villa elevator comprises a car 1, a control display mechanism 2 is arranged on the side wall inside the car 1, a cleaning adjustment mechanism 3 is arranged on the control display mechanism 2, an escape window 4 is arranged on the top of the car 1, the control display mechanism 2 comprises a display screen 202 for displaying elevator operation information and a control panel 201 for users to control the operation of the car 1, the control panel 201 and the display screen 202 are both arranged on the side wall inside the car 1, and both sides of the bottom end of the control panel 201 are connected with a seat plate 203 through a rotating shaft and a coil spring. By providing the seat plate 203, the seat plate 203 can be bent so that people who need to rest can sit during the operation of the car 1, thereby improving the comfort of the villa elevator.

[0067] Specifically, Figure 2 and Figure 3As shown, the bottom of the front side of the display screen 202 is fixedly connected with a baffle 204, and the top of the front side of the two seat boards 203 is also fixedly connected with the baffle 204. By setting the baffle 204, the first cleaning rod 307 and the second cleaning rod 308 are in contact with the baffle 204 during the movement, and then the display screen 202 and the seat board 203 are folded in cooperation with the baffle 204. The folded seat board 203 can be used for people who need to rest. The display screen 202 and the seat board 203 are folded at the same time, so that the car 1 is stopped due to the danger of fainting, and the car door cannot be opened. With the help of lifeguards, people can escape from the interior of the car 1 from the escape window 4 through the escape ladder formed by the seat board 203, the control panel 201 and the display screen 202. The control and display mechanism 2 can be used not only for people to operate the car 1 and for people to rest, but also for people to climb, so as to escape from the interior of the car 1 from the escape window 4, and has strong functionality.

[0068] Specifically, Figure 2 - Figure 8 As shown, the cleaning adjustment mechanism 3 includes two connecting frames 301 respectively arranged on both sides of the control panel 201, and rectangular grooves 302 are provided at the top and bottom of the front side of the connecting frame 301. The interior of the rectangular groove 302 is connected with a threaded rod 304 through a bearing, and a motor 303 for driving the threaded rod 304 to rotate is fixedly installed at one end of the rectangular groove 302. By arranging the motor 303 and the threaded rod 304, the threaded rod 304 can drive the connecting block 309, the second cleaning rod 308 and the first cleaning rod 307 to move during the rotation, thereby cleaning the display screen 202 and the seat 203.

[0069] Specifically, Figure 2 - Figure 8 As shown, the cleaning adjustment mechanism 3 also includes two first cleaning rods 307, both ends of the first cleaning rods 307 are hinged with second cleaning rods 308, the end of the second cleaning rod 308 is provided with a connecting block 309, one end of the connecting block 309 is connected to the external thread of the adjacent threaded rod 304, and one side of the second cleaning rod 308 and the first cleaning rod 307 are provided with a sponge bar, through the second cleaning rod 308 and the sponge bar on the first cleaning rod 307, the first cleaning rod 307 and the second cleaning rod 308 can clean the surface of the display screen 202 and the seat 203 during the up and down movement.

[0070] Specifically, Figure 2 - Figure 8As shown, one end of the second cleaning rod 308 is inserted and connected with a movable rod 310, one end of the movable rod 310 is fixedly connected with a latch 311, one end of the latch 311 is inserted and connected with one end of the connecting block 309, a spring 312 is provided between the latch 311 and the second cleaning rod 308 and is sleeved on the outside of the movable rod 310, and one end of the outer side of the second cleaning rod 308 is provided with a socket 314 for the end of the latch 311 to be inserted. By setting the cleaning adjustment mechanism 3, people can operate the motor 303 to make the second cleaning rod 308 and the first cleaning rod 307 move up and down to clean the display screen 202 and the seat plate 203, and can also clean the display screen 202 and the seat plate 203 through the second cleaning rod 308. By pulling the latch 311, the second cleaning rod 308 and the first cleaning rod 307 are replaced. When a single-frame rescue is required, the second cleaning rod 308 and the first cleaning rod 307 at the top can be removed, folded and installed on the two second cleaning rods 308 at the bottom to hold up the bottom of the single frame. When the threaded rod 304 at the bottom rotates, the single frame can be driven to move upward as a whole, thereby facilitating the rescue personnel at the top of the car 1 to move the stretcher out of the car 1 from the escape window 4. The cleaning adjustment mechanism 3 can not only be used to clean the display screen 202 and the seat board 203, but also can be used to assist people in holding up the stretcher during rescue, and has strong functionality.

[0071] Four grooves 305 are provided on one side of the interior of the car 1, and connecting rods 306 are hinged at both ends of one side of the connecting frame 301. The end of the connecting rod 306 is hinged to one side of the interior of the groove 305, and an electromagnet 313 for adsorbing the side wall of the car 1 is fixedly installed in the middle of one side of the connecting frame 301. By setting the electromagnet 313, when the electromagnet 313 is energized, the connecting frame 301 can be attached to the car 1 together. When encountering a dangerous situation and needing to climb out through the escape window 4, the electromagnet 313 is de-energized, and the connecting frame 301 can be moved to the bottom of the escape window 4, thereby facilitating people to rescue and escape through the cleaning and adjustment mechanism 3.

[0072] The use process of the villa elevator provided by the present invention is as follows:

[0073] When cleaning is required, the control motor 303 works, the threaded rod 304 rotates, and the first cleaning rod 307 and the second cleaning rod 308 move. During the movement, the display screen 202 and the surface of the seat plate 203 can be cleaned. When rescue is required, the electromagnet 313 is powered off, the control display mechanism 2 and the connecting frame 301 are pulled out from the side wall of the car 1, and placed under the escape window 4, and the upper and lower first cleaning rods 307 are controlled to approach each other, and finally contact the upper and lower baffles 204, thereby driving the display screen 202 and the seat plate 203 to move. 2 and the seat plate 203 can be folded to form a ladder for people to climb, so that people can escape through the escape window 4. When performing a single-frame rescue, the second cleaning rod 308 and the first cleaning rod 307 on the top can be disassembled, and a U-shaped bracket can be formed after bending and installed on the two second cleaning rods 308 at the bottom. The threaded rod 304 at the bottom is controlled to rotate so that the second cleaning rod 308 and the first cleaning rod 307 can support the bottom of the single frame, so that the rescuers on the top of the car 1 can lift the stretcher with a rope to facilitate rescue.

[0074] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A 5G-based distress call system, characterized in that: include: a. Sensor module, used to monitor emergency situations in the villa elevator and generate corresponding event signals; b. Communication module, connected to the 5G network, used to transmit event signals to the call center; c. Call center module, which receives and processes the transmitted event signals and performs corresponding emergency response; d. Monitoring and tracking module, used to monitor the status and emergency situations of the villa elevator in real time and provide relevant information to the call center; e. Data analysis and prediction module, which analyzes and predicts the collected data to identify potential problems in advance and reduce the possibility of accidents; f. User interface module, including mobile application and alarm system, allowing villa residents to send emergency distress signals via mobile phones and providing audible and visual alarms; g. Positioning and navigation module, using positioning technology and map data, quickly determines the location of the villa elevator and transmits this information to emergency response personnel.

2. A 5G-based emergency call system according to claim 1, characterized in that: The call center module establishes a signal connection channel with the rescue agency, can quickly coordinate and dispatch rescue resources, and provide accurate location information.

3. A 5G-based emergency call system according to claim 2, characterized in that: It also includes a data intelligent analysis and response module, which is used to automatically allocate appropriate rescue resources according to the priority and type of different emergency situations, and provide guidance and advice to emergency responders.

4. A 5G-based emergency call system according to claim 3, characterized in that: It also includes a background management system for monitoring and managing the operating status of the villa elevator emergency call system, which includes equipment health, fault diagnosis and maintenance.

5. A 5G-based emergency call system according to claim 4, characterized in that: The call center module also has a remote control function, which can remotely operate and control the villa elevator through the 5G network so that appropriate measures can be taken in an emergency, including stopping the elevator operation and opening the elevator door.

6. A villa elevator, using the 5G-based emergency call system as claimed in claim 5, characterized in that: The invention comprises a car (1), a control display mechanism (2) is arranged on the side wall inside the car (1), a cleaning adjustment mechanism (3) is arranged on the control display mechanism (2), an escape window (4) is arranged on the top of the car (1), the control display mechanism (2) comprises a display screen (202) for displaying elevator operation information and a control panel (201) for users to control the operation of the car (1), the control panel (201) and the display screen (202) are both arranged on the side wall inside the car (1), and both sides of the bottom end of the control panel (201) are connected to a seat plate (203) via a rotating shaft and a coil spring.

7. A villa elevator according to claim 6, characterized in that: The bottom of the front side of the display screen (202) is fixedly connected with a baffle (204), and the tops of the front sides of the two seat boards (203) are also fixedly connected with a baffle (204).

8. A villa elevator according to claim 7, characterized in that: The cleaning adjustment mechanism (3) comprises two connecting frames (301) respectively arranged on both sides of the control panel (201); the top and bottom of the front side of the connecting frame (301) are both provided with rectangular grooves (302); the interior of the rectangular groove (302) is connected to a threaded rod (304) via a bearing; and a motor (303) for driving the threaded rod (304) to rotate is fixedly mounted at one end of the interior of the rectangular groove (302).

9. A villa elevator according to claim 8, characterized in that: The cleaning adjustment mechanism (3) further comprises two first cleaning rods (307), both ends of the first cleaning rod (307) being hinged with second cleaning rods (308), the end of the second cleaning rod (308) being provided with a connecting block (309), one end of the connecting block (309) being connected with the external thread of the adjacent threaded rod (304), and one side of the second cleaning rod (308) and the first cleaning rod (307) being provided with a sponge bar.

10. A villa elevator according to claim 9, characterized in that: One end of the second cleaning rod (308) is inserted and connected with a movable rod (310), one end of the movable rod (310) is fixedly connected with a latch (311), one end of the latch (311) is inserted and connected with one end of a connecting block (309), a spring (312) is arranged between the latch (311) and the second cleaning rod (308) and is sleeved on the outside of the movable rod (310), and one end of the outer side of the second cleaning rod (308) is provided with a socket (314) for inserting the end of the latch (311).

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