A cleaning device and method for a door lock

Abstract

The application discloses a cleaning device and method for a door lock, wherein the device solves the problem that current devices cannot separate dry and wet dust removal, and comprises a cleaning vehicle, the inside of the cleaning vehicle is provided with a first motor, a first cleaning brush, a second motor, a second cleaning brush, a third motor, a third cleaning brush, a fourth motor and a fourth cleaning brush, three groups of the first motor and the second motor are arrayed on one side of the inside of the cleaning vehicle, three groups of the third motor and the fourth motor are arrayed on the other side of the inside of the cleaning vehicle, four groups of the motor and the cleaning brush are used in cooperation, dry two groups of the cleaning brush are used to carry out dust sweeping operation first, dust and silt are preliminarily brushed off, then the other two groups of the cleaning brush are used to clean the silt in a deeper layer, dry and wet dust cleaning operation is realized, the four groups of the cleaning brush will not be polluted mutually, and cleaning is more thorough.

Description

Technical Field

[0001] This invention belongs to the field of fireproof door lock cleaning technology, specifically relating to a cleaning device and method for door locks. Background Technology

[0002] With increased public awareness of safety, many shopping malls and public places now install fire doors in their emergency exits. These doors facilitate evacuation in dangerous situations and also provide some protection against theft in daily life. Fire door locks are fire-resistant locks primarily used on fire doors. They effectively control pedestrian flow, prevent unauthorized departures, and deter theft. They are generally suitable for densely populated areas such as shopping malls, supermarkets, high-rise buildings, and office buildings. Fire door locks are robust, durable, and reliable, effectively facilitating emergency evacuation. They don't need to be locked or left open, providing both theft prevention and free access, offering 24-hour security protection. Solid bolts provide robust protection, resisting pressure and offering long fire resistance. Fire door locks can also be used in conjunction with other security devices such as stainless steel handles. They can be connected to double door actuators, access control systems, alarm controllers, smoke detectors, magnetic locks, and voice alarms. When the door is opened by pushing the lever, the alarm sounds until manually deactivated. When the access control door is opened, the fire escape lock can be pushed open without triggering an alarm. If the lock is illegally opened, it can send a signal to the access control system and trigger an alarm. It can even issue a corresponding alarm voice prompt based on the corresponding alarm button.

[0003] Current technology generally involves manual patrols and routine maintenance of fire door locks. When fire door locks are contaminated with mud and sand, they need to be cleaned manually. Shopping malls typically have many fire doors, and manual cleaning consumes a lot of time and physical exertion for staff. In the process of cleaning, incomplete cleaning is often encountered, and staff cannot accurately determine whether the lock tongue of the fire door lock is rusted, nor can they perform rust removal and lubrication operations on rusted areas. Summary of the Invention

[0004] The purpose of this invention is to provide a cleaning device and method for door locks, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cleaning device and method for door locks, comprising a cleaning vehicle, the interior of which is hollow and has a recessed center. The interior of the cleaning vehicle includes a brush assembly, a lock tongue detection assembly, and a dust removal assembly. Multiple sets of partitions are arrayed inside the cleaning vehicle. The brush assembly includes a first motor, a first cleaning brush, a second motor, a second cleaning brush, a third motor, a third cleaning brush, a fourth motor, and a fourth cleaning brush. Three sets of the first and second motors are arrayed on one side of the interior partition of the cleaning vehicle, and three sets of the third and fourth motors are arrayed on the other side of the interior partition of the cleaning vehicle. The dust removal assembly includes a blower, a first cleaning nozzle, a water tank, a second cleaning nozzle, a clean water storage chamber, a rust remover storage chamber, a second pipeline, a fourth electric valve, a fifth electric valve, and a sixth electric valve. The water tank is fixedly installed on one side of the interior of the cleaning vehicle, and the second cleaning nozzle is fixedly installed on the outside of the cleaning vehicle, below the first cleaning nozzle.

[0006] The present invention further illustrates that the blower is fixedly installed on the inside top of the cleaning vehicle, and the first cleaning nozzle is fixedly installed on the outside top of the cleaning vehicle, corresponding to the position of the blower.

[0007] The present invention further explains that the clean water storage chamber and the rust remover storage chamber are located inside the water tank. The second pipeline is a multi-port pipeline. One end of the second pipeline passes through the cleaning vehicle and is connected to the second cleaning nozzle. The other two ends pass through the water tank and are connected to the clean water storage chamber and the rust remover storage chamber, respectively.

[0008] The present invention further illustrates that the fourth electric valve, the fifth electric valve, and the sixth electric valve are all fixedly installed inside the second pipeline and are respectively located at multiple sets of pipe openings in the second pipeline.

[0009] The present invention further describes that the latch detection component includes an air compressor, a first pipeline, a first electric valve, a second electric valve, a third electric valve, a first telescopic cylinder, a second telescopic cylinder, and a third telescopic cylinder. The air compressor is fixedly installed on the internal partition of the cleaning vehicle. The first pipeline is a multi-port pipeline, with one end connected to the air outlet of the air compressor and the other end passing through the body of the cleaning vehicle and branching to the three sets of telescopic cylinders.

[0010] The present invention further illustrates that the first telescopic cylinder, the second telescopic cylinder, and the third telescopic cylinder are sequentially fixedly installed on the body of the cleaning vehicle.

[0011] The present invention further illustrates that pressure sensors are fixedly installed at the ends of the three sets of telescopic cylinders.

[0012] The present invention further illustrates that the first electric valve, the second electric valve, and the third electric valve are all fixedly installed inside the first pipeline, and correspond to the positions of the three sets of telescopic cylinders respectively.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The cleaning vehicle is recessed in the middle, and its interior is equipped with a brush assembly and a dust removal assembly. Multiple sets of partitions are arrayed inside the cleaning vehicle. The brush assembly includes a first motor, a first cleaning brush, a second motor, a second cleaning brush, a third motor, a third cleaning brush, a fourth motor, and a fourth cleaning brush. Three sets of the first and second motors are arrayed on one side of the interior partition of the cleaning vehicle, and three sets of the third and fourth motors are arrayed on the other side of the interior partition of the cleaning vehicle. The dust removal assembly includes a second cleaning nozzle and a water tank. The water tank is fixedly installed on one side of the interior of the cleaning vehicle, and the second cleaning nozzle is fixedly installed on... The exterior of the cleaning vehicle utilizes four sets of electric motors and four sets of cleaning brushes. During routine maintenance of fire door locks, two sets of brushes, working with compressed air from a blower, are used to remove dust. These two sets of brushes are dry at this stage, initially brushing away loose dust and dirt. Then, the remaining two sets of brushes, working with water, are used to remove dust further. These two sets of brushes are wet at this stage, allowing for a deeper cleaning of dirt and sand. This achieves a dry-wet separation dust cleaning process. The four sets of brushes do not contaminate each other, enabling continuous cleaning of fire door locks without the need for brush washing, resulting in a more thorough cleaning. After cleaning, the fire door locks are dried to prevent residual water from causing rust. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the interior of the cleaning vehicle 1 of the present invention;

[0017] Figure 3 This is a schematic diagram of the groove position of the cleaning vehicle 1 of the present invention;

[0018] Figure 4 This is a schematic diagram of the latch detection component 3 of the present invention;

[0019] Figure 5 This is a schematic diagram of the latch detection component 3 from another perspective of the present invention;

[0020] Figure 6 This is a schematic diagram showing the positions of the first electric motor 21 and the second electric motor 22 of the present invention;

[0021] Figure 7 This is a schematic diagram showing the positions of the third electric motor 23 and the fourth electric motor 24 of the present invention;

[0022] Figure 8 This is the invention Figure 7 Schematic diagram of internal piping in Zone A;

[0023] Figure 9 This is the invention Figure 7 Schematic diagram of internal piping in Zone B;

[0024] Figure 10 This is a schematic diagram of the interior of the water tank 42 of the present invention;

[0025] Figure 11 This is a schematic diagram of the working state of the cleaning vehicle 1 of the present invention.

[0026] In the picture: 1. Cleaning vehicle;

[0027] 2. Brush assembly; 21. First motor; 211. First cleaning brush; 22. Second motor; 221. Second cleaning brush; 23. Third motor; 231. Third cleaning brush; 24. Fourth motor; 241. Fourth cleaning brush;

[0028] 3. Locking tongue detection assembly; 31. Air compressor; 32. First pipeline; 321. First electric valve; 322. Second electric valve; 323. Third electric valve; 33. First telescopic cylinder; 331. Second telescopic cylinder; 332. Third telescopic cylinder;

[0029] 4. Dust removal components; 41. Blower; 411. First cleaning nozzle; 42. Water tank; 421. Second cleaning nozzle; 422. Clean water storage chamber; 423. Rust remover storage chamber; 43. Second pipeline; 431. Fourth electric valve; 432. Fifth electric valve; 433. Sixth electric valve. Detailed Implementation

[0030] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-11The present invention provides a technical solution: a cleaning device and method for door locks, including a cleaning vehicle 1, the interior of the cleaning vehicle 1 is hollow, the middle of the cleaning vehicle 1 is grooved to facilitate the insertion of fire doors, the interior of the cleaning vehicle 1 is provided with a brush assembly 2, a lock tongue detection assembly 3, and a dust removal assembly 4, the interior of the cleaning vehicle 1 is provided with multiple sets of partitions for placing the internal components, and the bottom of the cleaning vehicle 1 is provided with a lithium battery (not shown in the figure) for providing power to drive the internal components;

[0032] The brush assembly 2 includes a first motor 21, a first cleaning brush 211, a second motor 22, a second cleaning brush 221, a third motor 23, a third cleaning brush 231, a fourth motor 24, and a fourth cleaning brush 241;

[0033] Three sets of first motors 21 and second motors 22 are arranged in an array on one side of the interior of the cleaning vehicle 1, and are used to cooperate with the equipment program to control the first cleaning brush 211 and the second cleaning brush 221 to perform cleaning operations. Three sets of third motors 23 and fourth motors 24 are arranged in an array on the other side of the interior of the cleaning vehicle 1, and are used to cooperate with the equipment program to control the third cleaning brush 231 and the fourth cleaning brush 241 to perform cleaning operations.

[0034] The latch detection assembly 3 includes an air compressor 31, a first pipeline 32, a first electric valve 321, a second electric valve 322, a third electric valve 323, a first telescopic cylinder 33, a second telescopic cylinder 331, and a third telescopic cylinder 332.

[0035] Air compressor 31 is fixedly installed on the internal partition of cleaning vehicle 1 to provide compressed air for three sets of telescopic cylinders. The first pipeline 32 is a multi-port pipeline. One end of the first pipeline 32 is connected to the air outlet of air compressor 31, and the other end passes through the body of cleaning vehicle 1 and branches to the three sets of telescopic cylinders. The first telescopic cylinder 33, the second telescopic cylinder 331, and the third telescopic cylinder 332 are fixedly installed on the body of cleaning vehicle 1 in sequence. Pressure sensors are fixedly installed at the ends of the three sets of telescopic cylinders to detect whether the latch can retract smoothly and whether there is any rust. The first electric valve 321, the second electric valve 322, and the third electric valve 323 are all fixedly installed inside the first pipeline 32, corresponding to the positions of the three sets of telescopic cylinders respectively.

[0036] The dust removal assembly 4 includes a blower 41, a first cleaning nozzle 411, a water tank 42, a second cleaning nozzle 421, a clean water storage chamber 422, a rust remover storage chamber 423, a second pipeline 43, a fourth electric valve 431, a fifth electric valve 432, and a sixth electric valve 433.

[0037] Blower 41 is fixedly installed on the top of the interior of cleaning vehicle 1 to provide compressed air to the first cleaning nozzle 411 for dust removal. The first cleaning nozzle 411 is fixedly installed on the top of the exterior of cleaning vehicle 1, corresponding to the position of blower 41, for dust removal of fire door locks. Water tank 42 is fixedly installed on one side of the interior of cleaning vehicle 1. A pump (not shown in the figure) is built into water tank 42 to pressurize and pump out clean water or rust remover in accordance with the equipment program. Second cleaning nozzle 421 is fixedly installed on the exterior of cleaning vehicle 1, below the first cleaning nozzle 411. Clean water storage chamber 422 and rust remover storage chamber 423 are located inside water tank 42. The first section is used to store cleaning water and rust remover. The rust remover stored in the rust remover storage chamber 423 is WD-40 rust remover, which has a good rust removal and lubrication effect on metal products. The second pipeline 43 is a multi-port pipeline. One end of the second pipeline 43 passes through the cleaning vehicle 1 and is connected to the second cleaning nozzle 421. The other two ends pass through the water tank 42 and are connected to the clean water storage chamber 422 and the rust remover storage chamber 423, respectively. The fourth electric valve 431, the fifth electric valve 432, and the sixth electric valve 433 are all fixedly installed inside the second pipeline 43 and are located at the multiple ports of the second pipeline 43, respectively, to cooperate with the equipment program control to carry out clean water rinsing and rust removal operations.

[0038] The cleaning vehicle 1 is powered by a built-in lithium battery, eliminating the need for an external power source and making it portable.

[0039] The cleaning vehicle 1 is equipped with a program that can control the start and stop of four electric motors, the start and stop of the air compressor 31, the opening and closing of six electric valves, the start and stop of the pump built into the water tank 42, and the start and stop of the blower 41.

[0040] The pressure sensors of the four sets of electric motors, air compressor 31, six sets of electric valves, water tank 42 with built-in pump, blower 41, and three sets of telescopic cylinders are all connected to the equipment program signal.

[0041] Dust cleaning procedure:

[0042] When staff need to perform routine maintenance on the numerous fire door locks in the mall, they first fully charge the built-in lithium battery of the cleaning cart 1. Then, they push the cleaning cart 1 to the fire door, open the fire door, turn on the power of the cleaning cart 1, and align the groove of the cleaning cart 1 with the fire door lock, pushing it inward. The process stops when the first cleaning brush 211 and the third cleaning brush 231 correspond to the positions of the fire door lock. At this point, the equipment program first controls the first motor 21 and the third motor 23 to start. The first motor 21 and the third motor 23 begin to rotate, driving the first cleaning brush 211 and the third cleaning brush 231... When the cleaning brush 231 rotates, the blower 41 starts and compresses the air, which is then sprayed out from the first cleaning nozzle 411. The equipment program sets the speed of the first motor 21 and the third motor 23 to V3 and the cleaning time to T1. The first cleaning brush 211 and the third cleaning brush 231 rotate at high speed to sweep away the dust on the surface of the fire door lock and the adjacent door panel area, initially removing the dust, mud and other impurities adhering to the fire door lock. When the cleaning time T3 is up, the equipment program controls the first motor 21, the third motor 23 and the blower 41 to stop, and the equipment program controls the next operation.

[0043] At this point, the staff will push the cleaning cart 1 further inward until the second cleaning brush 221 and the fourth cleaning brush 241 are aligned with the fire door lock. Then, the equipment program controls the second motor 22 and the fourth motor 24 to start, the pump built into the water tank 42 to start, the fifth electric valve 432 to close, and the sixth electric valve 433 to open. The water tank 42 pressurizes the clean water and pumps it into the second pipeline 43, from which it is sprayed in a mist from the second cleaning nozzle 421 onto the fire door lock. The equipment program sets the speed of the second motor 22 and the fourth motor 24 to V1 and the cleaning time to T1. The second cleaning brush 221 and the fourth cleaning brush 241 rotate at low speed and are equipped with... The second cleaning nozzle 421 sprays clean water to perform a water washing and dust removal operation, preventing stubborn dust and stains from remaining on the fire door lock and improving cleaning efficiency. When the cleaning time T1 is up, the equipment program controls the second motor 22 and the fourth motor 24 to shut down, the water tank 42's built-in pump and the sixth electric valve 433 to close, and then the equipment program controls the blower 41 to start. The equipment program sets the blowing time to T2. The blower 41 compresses the air and sprays it from the first cleaning nozzle 411 onto the fire door lock to perform a drying blowing operation on the fire door lock, drying the water stains remaining on the fire door lock. When the blowing time T2 is up, the equipment program controls the next operation.

[0044] By using four sets of electric motors and four sets of cleaning brushes in conjunction, the routine maintenance of fire door locks can be performed by first using two sets of cleaning brushes with compressed air blown by blower 41 to remove dust. At this time, the two sets of cleaning brushes are dry and initially remove floating dust and mud. Then, the other two sets of cleaning brushes are used with clean water to remove dust. At this time, the two sets of cleaning brushes are wet and perform a deeper cleaning of mud and sand, achieving a dry and wet dust cleaning operation. The four sets of cleaning brushes will not contaminate each other and can continuously clean fire door locks without the need to wash the cleaning brushes, resulting in a more thorough cleaning. After cleaning, the fire door locks should be dried to prevent residual water stains from causing rust.

[0045] Locking tongue detection operation:

[0046] After the above operations are completed, the equipment program controls the latch detection operation. The equipment program starts the air compressor 31, and the operator controls the equipment program to open the corresponding electric valves (first electric valve 321, second electric valve 322, and third electric valve 323) according to the installation position of the fire door lock. The corresponding telescopic cylinders will extend outward. At this time, the equipment program detects the signal values ​​of the pressure sensors on the three sets of telescopic cylinders and compares them with the set values. The equipment program sets the pressure value to X1. If the signal value of the pressure sensor is less than X1, no operation is performed, and the equipment program determines that the latch of the fire door lock is not rusted and can be used normally. If the signal value of the pressure sensor is greater than X1 and less than 2X1, the equipment program determines that the rust level of the latch is slight. If the signal value of the pressure sensor is greater than 2X1, the equipment program determines that the rust level of the latch is severe.

[0047] When the device program determines that the rust on the door lock's latch is only slightly rusted, it starts the built-in pump in the water tank 42, opening all four electric valves: 431, 432, and 433. The pump in the water tank 42 pressurizes the WD-40 rust remover in the rust remover storage chamber 423 and sprays it as a mist from the second cleaning nozzle 421 onto the fire door lock. The device program then repeats the latch detection operation. If the device program detects that the pressure sensor signal value is less than X1, no further action is taken.

[0048] If the equipment program detects that the signal value of the pressure sensor is still greater than X1 and has not decreased significantly, the WD-40 rust remover in the rust remover storage chamber 423 will be pressurized by the built-in pump in the water tank 42 and sprayed again from the second cleaning nozzle 421 in the form of water mist onto the fire door lock for spraying. If the value is still greater than X1 and has not decreased significantly after the second spraying, it may be due to the rust remover being left for too long, resulting in poor rust removal effect. In this case, the equipment program will send an alarm signal to the staff to remind them to replace the rust remover.

[0049] If the equipment program detects a significant decrease in the pressure sensor signal value but slightly greater than X1, a rust remover is sprayed onto the lock tongue surface. The rust remover decomposes the rust on the lock tongue surface, causing a significant decrease in the pressure sensor signal value. This may be because rust has not been removed in time and has entered between the lock tongue and the lock body, causing the lock tongue to retract unevenly and become stuck. Therefore, the pressure sensor signal value is still slightly greater than X1. At this time, the equipment program controls the second motor 22 and the fourth motor 24 to start, the built-in pump in the water tank 42 to start, the fifth electric valve 432 to close, and the sixth electric valve 433 to open. This allows the built-in pump in the water tank 42 to pressurize the WD-40 rust remover in the rust remover storage chamber 423 and spray it out as a water mist from the second cleaning nozzle 421 onto the fire door lock. The equipment program sets the second motor 22 and the fourth motor 24 to start. The rotation speed of motor 24 is V1, and the cleaning time is T1. The second cleaning brush 221 and the fourth cleaning brush 241 rotate at low speed and work in conjunction with the rust remover sprayed from the second cleaning nozzle 421 to remove the rust located between the latch and the lock body. When the cleaning time T1 is up, the equipment program controls the second motor 22 and the fourth motor 24 to shut down, the pump built into the water tank 42 and the sixth electric valve 433 to close, and then the equipment program controls the blower 41 to start. The equipment program sets the blowing time to T2. The blower 41 compresses the air and sprays it from the first cleaning nozzle 411 onto the fire door lock to blow away the impurities remaining on the fire door latch and lock body after rust removal. After rust removal is completed, the equipment program repeats the above latch detection operation. If the equipment program detects that the signal value of the pressure sensor is less than X1, the equipment program will not operate.

[0050] If the equipment program detects that the signal value of the pressure sensor is still greater than X1, and the above rust removal steps cannot restore the lock tongue to the normal pressure range, the equipment program will send an alarm signal to the staff to remind them to replace the rusted fire door lock to ensure that the fire door lock can be used normally.

[0051] When the device program determines that the lock tongue is severely rusted, it uses the second cleaning brush 221 and the fourth cleaning brush 241 to rotate at low speed and spray rust remover from the second cleaning nozzle 421 to remove the rust between the lock tongue and the lock body for a time of A minutes. This reduces the degree of rust until the device program detects that the signal value of the pressure sensor is less than 2X1. Then, the above X1 cleaning steps are repeated to clean the lock tongue. If the cleaning brushes fail to significantly reduce the degree of rust within A minutes, the device program will send an alarm signal to the staff to remind them to replace the lock tongue.

[0052] By using air compressor 31 in conjunction with three sets of telescopic cylinders, the latch of fire door locks installed at different heights can be tested. The latch retraction force detected by the pressure sensor is compared with the set value to determine whether the latch is rusted. Since dust removal has been performed in the previous step, the slow latch retraction is not caused by mud or dust, eliminating the need for manual testing and reducing the workload of staff. Rust removal and lubrication are performed during the testing process, and a second test is conducted to ensure the accuracy of the cleaning operation and prevent any omissions or inadequate cleaning. If the rust is too severe, staff can be promptly alerted to replace the lock, effectively improving the service life of the fire door lock. If the rust is minor, simple rust removal and lubrication can be performed without replacing the lock, reducing the company's costs.

[0053] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleaning device for door locks, comprising a cleaning cart (1), characterized in that: The cleaning vehicle (1) is hollow inside, and the middle of the cleaning vehicle (1) is recessed. The cleaning vehicle (1) is equipped with a brush assembly (2), a lock tongue detection assembly (3), and a dust removal assembly (4). Multiple sets of partitions are arranged in an array inside the cleaning vehicle (1). The brush assembly (2) includes a first motor (21), a first cleaning brush (211), a second motor (22), a second cleaning brush (221), a third motor (23), a third cleaning brush (231), a fourth motor (24), and a fourth cleaning brush (241). Three first motors (21) and three second motors (22) are arranged in an array on one side of the interior partition of the cleaning vehicle (1), and three third motors (23) and three fourth motors (24) are arranged in an array on the other side of the interior partition of the cleaning vehicle (1); The dust removal assembly (4) includes a blower (41), a first cleaning nozzle (411), a water tank (42), a second cleaning nozzle (421), a clean water storage chamber (422), a rust remover storage chamber (423), a second pipeline (43), a fourth electric valve (431), a fifth electric valve (432), and a sixth electric valve (433). The water tank (42) is fixedly installed on one side inside the cleaning vehicle (1), and the second cleaning nozzle (421) is fixedly installed on the outside of the cleaning vehicle (1), located below the first cleaning nozzle (411); The latch detection assembly (3) includes an air compressor (31), a first pipeline (32), a first electric valve (321), a second electric valve (322), a third electric valve (323), a first telescopic cylinder (33), a second telescopic cylinder (331), and a third telescopic cylinder (332). The air compressor (31) is fixedly installed on the internal partition of the cleaning vehicle (1). The first pipeline (32) is a multi-port pipeline. One end of the first pipeline (32) is connected to the air outlet of the air compressor (31), and the other end passes through the body of the cleaning vehicle (1) and is connected to the first telescopic cylinder (33), the second telescopic cylinder (331), and the third telescopic cylinder (332). The first telescopic cylinder (33), the second telescopic cylinder (331), and the third telescopic cylinder (332) are sequentially fixedly installed on the body of the cleaning vehicle (1); Pressure sensors are fixedly installed at the ends of the first telescopic cylinder (33), the second telescopic cylinder (331), and the third telescopic cylinder (332).

2. A cleaning device for door locks according to claim 1, characterized in that: The blower (41) is fixedly installed on the inside top of the cleaning vehicle (1), and the first cleaning nozzle (411) is fixedly installed on the outside top of the cleaning vehicle (1), corresponding to the position of the blower (41).

3. A cleaning device for door locks according to claim 1, characterized in that: The clean water storage chamber (422) and the rust remover storage chamber (423) are located inside the water tank (42). The second pipeline (43) is a multi-port pipeline. One end of the second pipeline (43) passes through the cleaning vehicle (1) and is connected to the second cleaning nozzle (421). The other two ends pass through the water tank (42) and are connected to the clean water storage chamber (422) and the rust remover storage chamber (423), respectively.

4. A cleaning device for door locks according to claim 1, characterized in that: The fourth electric valve (431), the fifth electric valve (432), and the sixth electric valve (433) are all fixedly installed inside the second pipeline (43) and are located at multiple pipe opening positions of the second pipeline (43).

5. A cleaning device for door locks according to claim 1, characterized in that: The first electric valve (321), the second electric valve (322), and the third electric valve (323) are all fixedly installed inside the first pipeline (32), corresponding to the positions of the first telescopic cylinder (33), the second telescopic cylinder (331), and the third telescopic cylinder (332), respectively.

6. A cleaning method for a door lock cleaning device according to any one of claims 1-5, characterized in that: This includes a method for detecting the latch: The equipment program controls the air compressor (31) to start. The staff controls the equipment program to open the electric valves at the corresponding positions according to the installation position of the fire door lock, namely the first electric valve (321), the second electric valve (322), and the third electric valve (323). The corresponding telescopic cylinders will extend outward. At this time, the equipment program detects the signal values ​​of the pressure sensors on the first telescopic cylinder (33), the second telescopic cylinder (331), and the third telescopic cylinder (332) and compares them with the set values. The equipment program sets the pressure value to X1. If the signal value of the pressure sensor is less than X1, there is no operation. The equipment program determines that the lock tongue of the fire door lock is not rusted and can be used normally. If the signal value of the pressure sensor is greater than X1 and less than 2X1, the equipment program determines that the lock tongue of the door lock is slightly rusted. If the signal value of the pressure sensor is greater than 2X1, the equipment program determines that the lock tongue of the door lock is heavily rusted.

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