A humanized lift door safety induction device
By designing safety sensors and ventilation systems on elevator doors, the problems of accidental door entrapment and poor air quality have been solved, thus improving both safety and air freshness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHAGA TECHNOLOGY CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-14
AI Technical Summary
Existing elevator doors may trap people in accidents, posing a risk of crush injuries. Furthermore, the air quality inside the elevator car is poor, especially when passengers are crowded or when smoking is taking place.
A user-friendly car door safety sensing device was designed, which includes a safety mechanism and a ventilation mechanism. The safety mechanism controls the electric telescopic rod and the blocking block through sensors and controllers to prevent the door from being trapped; the ventilation mechanism ensures air freshness through air supply and exhaust components.
This effectively prevents people from getting trapped, improves the safety of the elevator doors, and maintains fresh air inside the car, preventing passengers from having difficulty breathing and smoke from accumulating.
Smart Images
Figure CN224493380U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of elevators, and in particular to a user-friendly car door safety sensing device. Background Technology
[0002] An elevator is a vertical transportation tool used to transport people and goods in multi-story buildings. Driven by an electric motor, it runs along vertical or near-vertical tracks and is a standard feature of modern buildings. Its presence can enhance the value and market competitiveness of buildings. Elevators provide barrier-free access for the elderly, disabled people, and people carrying heavy objects.
[0003] A search revealed Chinese Patent Publication No. CN216945727U, which discloses an elevator in which the display panel is not uniquely positioned within the car. When the display panel is placed on the car door, it can serve as the elevator's control panel, allowing the elevator's operation to be controlled by operating the display panel. When the display panel is placed on the car wall or car top, it can serve as an advertising display panel, showing patterns and text information to people entering the elevator, thus improving the display effect.
[0004] Regarding the aforementioned technologies, the inventors have discovered the following defects: in the event of an accident, the door cannot be locked shut. If the door malfunctions or a child is caught in the door gap just before it closes, the child may be trapped. This could result in minor injuries such as crush injuries to the skin, muscles, and tendons, including bruises, abrasions, or lacerations, or even bone fractures, especially if the limbs are trapped by the door. Utility Model Content
[0005] In order to solve the problems mentioned in the background art, this application provides a user-friendly car door safety sensing device.
[0006] This application provides a user-friendly car door safety sensing device, including a car, a door on the front side of the car, a sensor fixedly installed on one side of the car, a controller fixedly installed on another side of the car, the sensor located below the controller, a safety mechanism on the top of the car, the safety mechanism including a blocking block, and a ventilation mechanism jointly provided on the top and one side of the car, the ventilation mechanism including an air supply component and an exhaust component, the air supply component including a first dust-blocking mesh, and the exhaust component including a second dust-blocking mesh.
[0007] Optionally, the safety mechanism includes a mounting plate fixedly installed on the top of the car. The top of the mounting plate has a sliding groove. Two support rods are fixedly installed on the top of the mounting plate. A mounting block is fixedly installed on the top of the two support rods. Two sleeves are fixedly installed on the bottom of the mounting block. A sliding column is slidably connected inside the two sleeves. The bottom of the sliding column is connected to the blocking block.
[0008] Optionally, the bottom of the mounting plate is also fixedly connected to two springs, the bottom ends of the two springs are connected to the blocking block, the two sleeves are located inside the two springs, a sliding block is slidably connected inside the sliding groove, the bottom of the sliding block is connected to the blocking block, the sliding block is located between the two sleeves, and an insertion groove is provided on the rear side of the sliding block.
[0009] Optionally, an installation strip is fixedly installed on the top of the mounting plate, and two electric telescopic rods are fixedly installed on the front side of the installation strip. The output ends of the two electric telescopic rods are fixedly connected to a plug-in block, and the plug-in block is plugged into the plug-in slot.
[0010] Optionally, the air supply assembly includes an air inlet slot 1 formed on one side of the car, and the baffle net 1 is detachably connected to the interior of the air inlet slot 1.
[0011] Optionally, an air supply box is fixedly installed on one side of the car, and the air supply box is connected to the car. An air supply pipe is fixedly installed on the top of the air supply box, and a fan box is fixedly installed on the top of the air supply pipe. An exhaust fan is fixedly installed on the inner wall of the fan box, and multiple air inlet slots are opened on the top of the fan box.
[0012] Optionally, the ventilation assembly includes an air inlet slot 2 formed on the top of the car, and the baffle net 2 is detachably connected to the interior of the air inlet slot 2.
[0013] Optionally, an air outlet box is fixedly installed on the top of the car, and the air outlet box is connected to the car. An air outlet pipe is fixedly installed on one side of the air outlet box, and a second fan box is fixedly installed on one side of the air outlet pipe. A fan frame is fixedly installed on the inner wall of the second fan box, and two second exhaust fans are fixedly installed at the bottom of the fan frame. Multiple exhaust slots are opened on the top of the second fan box.
[0014] In summary, this application includes the following beneficial technical effects:
[0015] 1. This utility model, through the setting of components such as mounting plate, sliding groove, support rod, mounting block, sleeve, sliding column, blocking block, spring, sliding block, insertion groove, mounting strip, electric telescopic rod, and insertion block, detects an accident through a sensor, and then the controller activates the electric telescopic rod to drive the insertion block to retract, causing the insertion block to disengage from the insertion groove. As a result, the sliding block is ejected and falls under the tension of the compressed spring, which in turn causes the blocking block to fall, limiting the door and preventing it from closing. This avoids the situation where a person is trapped and effectively improves safety.
[0016] 2. This utility model, through the setting of components such as an air inlet slot 1, a baffle net 1, an air supply box, an air supply pipe, a fan box 1, an exhaust fan 1, an air inlet slot, an air outlet box, an air inlet slot 2, a baffle net 1, an air outlet pipe, a fan box 2, a fan frame, an exhaust fan 2, and an exhaust slot, etc., draws in fresh external air by starting the exhaust fan 1, and delivers it into the air supply box through the air supply pipe. Then, the baffle net 1 filters out particulate impurities in the air before it enters the car, preventing breathing difficulties caused by too many passengers in the car. By starting the exhaust fan 2, the air inside the car is drawn into the air inlet slot 2, then delivered through the air outlet pipe, and finally discharged through the exhaust slot. This effectively prevents passengers from smoking in the car, as the smoke cannot be quickly discharged, thus maintaining the freshness of the air inside the car. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0018] Figure 2 This is a cross-sectional structural diagram of the safety mechanism in the embodiments of this application;
[0019] Figure 3 This is a cross-sectional structural diagram of the air supply component in an embodiment of this application;
[0020] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged view of structure A in the image;
[0021] Figure 5 This is a cross-sectional structural diagram of the exhaust component in the embodiments of this application.
[0022] Reference numerals: 1. Car; 10. Car door; 11. Sensor; 12. Controller; 2. Safety mechanism; 201. Mounting plate; 202. Sliding groove; 203. Support rod; 204. Mounting block; 205. Sleeve; 206. Sliding column; 207. Blocking block; 208. Spring; 209. Sliding block; 210. Insertion groove; 211. Mounting strip; 212. Electric telescopic rod; 213. Insertion block; 3. Ventilation fan Structure; 30. Air supply assembly; 31. Exhaust assembly; 301. Air inlet duct one; 302. Barrier mesh one; 303. Air supply box; 304. Air supply duct; 305. Fan box one; 306. Exhaust fan one; 307. Air inlet duct; 311. Air outlet box; 312. Air inlet duct two; 313. Barrier mesh two; 314. Air outlet duct; 315. Fan box two; 316. Fan frame; 317. Exhaust fan two; 318. Exhaust duct. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1 —5 provides further detailed description of this application.
[0024] This application discloses a user-friendly car door safety sensing device.
[0025] like Figure 1 As shown, a humanized car door safety sensing device includes a car 1, a door 10 is provided on the front side of the car 1, a sensor 11 is fixedly installed on one side of the car 1, a controller 12 is also fixedly installed on one side of the car 1, the sensor 11 is located below the controller 12, and a safety mechanism 2 is provided on the top of the car 1. The safety mechanism 2 includes a blocking block 207 for blocking.
[0026] Please see Figure 2 Safety mechanism 2 includes a mounting plate 201 fixedly installed on the top of the car 1. The top of the mounting plate 201 has a sliding groove 202. Two support rods 203 are fixedly installed on the top of the mounting plate 201. The top of the two support rods 203 are fixedly installed on a mounting block 204. Two sleeves 205 are fixedly installed on the bottom of the mounting block 204. Sliding columns 206 are slidably connected inside the two sleeves 205. The bottom of the sliding column 206 is connected to the blocking block 207. The sliding column 206 slides inside the sleeve 205 to limit the movement during ejection and prevent the spring 208 from displacing during ejection.
[0027] Please see Figure 2Two springs 208 are fixedly connected to the bottom of the mounting plate 201. The bottom ends of the two springs 208 are connected to the blocking block 207. Two sleeves 205 are located inside the two springs 208. A sliding block 209 is slidably connected inside the sliding groove 202. The bottom of the sliding block 209 is connected to the blocking block 207. The sliding block 209 is located between the two sleeves 205. A insertion groove 210 is provided on the rear side of the sliding block 209. The installed springs 208 are used to eject the blocking block 207 quickly in case of an accident. To further explain, the springs 208 are compressed and eject quickly when the sliding block 209 is released.
[0028] Please see Figure 2 An installation strip 211 is fixedly installed on the top of the installation plate 201. Two electric telescopic rods 212 are fixedly installed on the front side of the installation strip 211. The output ends of the two electric telescopic rods 212 are fixedly connected to a plug block 213. The plug block 213 is plugged into the plug slot 210. The sensor 11 senses the connection and the controller 12 activates the electric telescopic rod 212 to retract the plug block 213, causing the plug block 213 to disengage from the plug slot 210. As a result, the sliding block 209 is ejected and falls under the tension of the compressed spring 208, which in turn causes the blocking block 207 to fall, limiting the door 10 and preventing it from closing. This avoids the situation where a person is trapped and effectively improves safety.
[0029] The top and one side of the car 1 are provided with a ventilation mechanism 3. The ventilation mechanism 3 includes an air supply component 30 and an exhaust component 31. The air supply component 30 includes a first dust filter 302 for blocking dust, and the exhaust component 31 includes a second dust filter 313 for blocking dust.
[0030] Please see Figure 3 and Figure 4 The air supply assembly 30 includes an air inlet slot 301 opened on one side of the car 1, and a baffle net 302 is detachably connected to the inside of the air inlet slot 301. The baffle net 302 can be manually removed for cleaning or replacement to avoid blockage caused by prolonged use.
[0031] Please see Figure 3 and Figure 4An air supply box 303 is fixedly installed on one side of the car 1, and the air supply box 303 is connected to the car 1. An air supply pipe 304 is fixedly installed on the top of the air supply box 303, and a fan box 305 is fixedly installed on the top of the air supply pipe 304. An exhaust fan 306 is fixedly installed on the inner wall of the fan box 305. Multiple air inlet slots 307 are opened on the top of the fan box 305. By starting the exhaust fan 306, fresh air from outside is drawn in and delivered into the air supply box 303 through the air supply pipe 304. Then, a filter screen 302 is inserted to filter out particulate impurities in the air before it enters the car 1, thus preventing breathing difficulties caused by too many passengers in the car 1.
[0032] Please see Figure 5 The ventilation assembly 31 includes an air inlet slot 312 located on the top of the car 1, and a baffle net 313 detachably connected to the inside of the air inlet slot 312. The baffle net 313 can be manually removed for cleaning or replacement to avoid blockage caused by prolonged use.
[0033] Please see Figure 5 An air outlet box 311 is fixedly installed on the top of the car 1, and the air outlet box 311 is connected to the car 1. An air outlet pipe 314 is fixedly installed on one side of the air outlet box 311, and a fan box 315 is fixedly installed on one side of the air outlet pipe 314. A fan frame 316 is fixedly installed on the inner wall of the fan box 315, and two exhaust fans 317 are fixedly installed at the bottom of the fan frame 316. Multiple exhaust slots 318 are opened on the top of the fan box 315. By starting the exhaust fans 317, the air inside the car 1 is drawn into the air inlet slot 312, then transported through the air outlet pipe 314, and finally discharged through the exhaust slots 318. This prevents passengers from smoking in the car 1, so that the smoke cannot be quickly discharged, and effectively maintains the freshness of the air inside the car 1.
[0034] The safety mechanism 2 is installed to improve safety and prevent people from being trapped. The air supply component 30 is installed to supply air into the car 1 to prevent breathing difficulties caused by too many passengers in the car 1. The exhaust component 31 is installed to maintain the freshness of the air inside the car 1 and prevent passengers from smoking in the car 1 so that the smoke cannot be quickly discharged.
[0035] The implementation principle of a humanized car door safety sensing device in this application embodiment is as follows: The installed safety mechanism 2 enhances safety and prevents people from being trapped; the installed air supply assembly 30 supplies air into the car 1 to prevent breathing difficulties caused by too many passengers inside; the installed exhaust assembly 31 maintains the freshness of the air inside the car 1 and prevents passengers from smoking inside, thus preventing smoke from being quickly expelled; and the installed sliding column 206 slides inside the sleeve 205. The spring 208 is used to limit the movement during ejection, preventing displacement of the spring 208. The installed spring 208 is used to trigger ejection in case of an accident, causing the blocking block 207 to quickly stop. To further explain: the spring 208 is compressed; when the sliding block 209 is released, it quickly ejects, which is detected by the sensor 11. The controller 12 then activates the electric telescopic rod 212, causing the insertion block 213 to retract, disengaging it from the insertion slot 210. Thus, the sliding block 209 is stopped by the compressed spring 208. Under the tension of 08, the device is ejected and falls, triggering the blocking block 207 to descend and limit the movement of the door 10, preventing it from closing and thus avoiding the possibility of the body being trapped. This effectively improves safety. The blocking net 302 can be manually disassembled for cleaning or replacement to prevent blockage due to prolonged use. By starting the exhaust fan 306, fresh air is drawn in from outside and delivered into the air supply box 303 through the air supply pipe 304. The blocking net 302 then filters out particulate impurities in the air. The air is drawn into the interior of the car 1 to prevent breathing difficulties caused by too many passengers. The second barrier net 313 is manually disassembled for cleaning or replacement to prevent blockage due to prolonged use. The second exhaust fan 317 is activated to draw air from the interior of the car 1, which is then drawn into the second air inlet duct 312, transported through the air outlet duct 314, and finally discharged through the exhaust duct 318. This prevents passengers from smoking in the car 1 and ensures that the smoke is quickly expelled, effectively maintaining the freshness of the air inside the car 1.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A user-friendly car door safety sensing device, comprising a car (1), characterized in that: The car (1) is provided with a door (10) on the front side. A sensor (11) is fixedly installed on one side of the car (1). A controller (12) is also fixedly installed on one side of the car (1). The sensor (11) is located below the controller (12). A safety mechanism (2) is provided on the top of the car (1). The safety mechanism (2) includes a blocking block (207) for blocking. A ventilation mechanism (3) is provided on the top and one side of the car (1). The ventilation mechanism (3) includes an air supply component (30) and an exhaust component (31). The air supply component (30) includes a first dust blocking net (302) for blocking dust. The exhaust component (31) includes a second dust blocking net (313) for blocking dust.
2. The humanized car door safety sensing device according to claim 1, characterized in that: The safety mechanism (2) includes a mounting plate (201) fixedly installed on the top of the car (1). The top of the mounting plate (201) is provided with a sliding groove (202). Two support rods (203) are fixedly installed on the top of the mounting plate (201). The top of the two support rods (203) is fixedly installed together with a mounting block (204). Two sleeves (205) are fixedly installed at the bottom of the mounting block (204). A sliding column (206) is slidably connected inside the two sleeves (205). The bottom of the sliding column (206) is connected to the blocking block (207).
3. The humanized car door safety sensing device according to claim 2, characterized in that: Two springs (208) are fixedly connected to the bottom of the mounting plate (201). The bottom ends of the two springs (208) are connected to the blocking block (207). Two sleeves (205) are located inside the two springs (208). A sliding block (209) is slidably connected inside the sliding groove (202). The bottom of the sliding block (209) is connected to the blocking block (207). The sliding block (209) is located between the two sleeves (205). A plug-in groove (210) is provided on the rear side of the sliding block (209).
4. The humanized car door safety sensing device according to claim 3, characterized in that: An installation strip (211) is fixedly installed on the top of the mounting plate (201). Two electric telescopic rods (212) are fixedly installed on the front side of the installation strip (211). The output ends of the two electric telescopic rods (212) are fixedly connected to a plug block (213). The plug block (213) is plugged into the plug slot (210).
5. The humanized car door safety sensing device according to claim 1, characterized in that: The air supply assembly (30) includes an air inlet slot (301) opened on one side of the car (1), and the baffle net (302) is detachably connected to the inside of the air inlet slot (301).
6. The humanized car door safety sensing device according to claim 5, characterized in that: An air supply box (303) is fixedly installed on one side of the car (1). The air supply box (303) is connected to the car (1). An air supply pipe (304) is fixedly installed on the top of the air supply box (303). A fan box (305) is fixedly installed on the top of the air supply pipe (304). An exhaust fan (306) is fixedly installed on the inner wall of the fan box (305). A plurality of air inlet slots (307) are opened on the top of the fan box (305).
7. The humanized car door safety sensing device according to claim 1, characterized in that: The ventilation assembly (31) includes an air inlet slot 2 (312) opened on the top of the car (1), and the baffle net 2 (313) is detachably connected to the inside of the air inlet slot 2 (312).
8. The humanized car door safety sensing device according to claim 7, characterized in that: An air outlet box (311) is fixedly installed on the top of the car (1). The air outlet box (311) is connected to the car (1). An air outlet pipe (314) is fixedly installed on one side of the air outlet box (311). A fan box (315) is fixedly installed on one side of the air outlet pipe (314). A fan frame (316) is fixedly installed on the inner wall of the fan box (315). Two exhaust fans (317) are fixedly installed at the bottom of the fan frame (316). Multiple exhaust slots (318) are opened on the top of the fan box (315).