A dirty clothes well drop door control
By combining the transmission mechanism with the control mechanism, and using a micro servo motor and an infrared displacement sensor, the automatic sensing and opening of the laundry well gate and manual control are realized. This solves the problems of elastic fatigue and difficult operation in traditional spring control, improves the reliability and safety of the gate, and reduces the labor intensity of the operator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGTIAN CHENGUANG FUJIAN PIPE IND TECH
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional spring-controlled laundry manhole doors are prone to elastic fatigue during long-term use, causing them to fail to open or close properly. Furthermore, opening the door requires a large pushing force, and frequent operation can easily lead to hand fatigue.
It adopts a combination of transmission and control mechanisms, using a micro servo motor as the power source, and precisely controls the opening and closing of the movable door panel through gear meshing transmission. It is also equipped with an infrared displacement sensor to detect the approach of a human body or object, realizing the automatic sensing and opening of the loading door. At the same time, a manual switch button is provided for emergencies.
It eliminates the problem of elastic decay, reduces the need for operating force, and improves the reliability and safety of the loading gate. It is especially suitable for places with frequent personnel flow, improves the efficiency of soiled linen disposal, and reduces the labor intensity of operators.
Smart Images
Figure CN224532512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of control device technology, and in particular to a control device for the feeding gate of a laundry well. Background Technology
[0002] In places such as hotels and hospitals, laundry chutes are important facilities for the centralized collection and transportation of soiled laundry. Among the existing control methods for the doors of laundry chutes, spring control is a relatively common method. This control method mainly uses the elastic potential energy of the spring to realize the opening and closing of the door. Under normal circumstances, the spring can provide a certain force to the door to assist it in completing the corresponding action, meeting the basic needs of soiled laundry disposal. To a certain extent, this simplifies the control structure of the door and reduces costs.
[0003] However, the spring-controlled loading gate has gradually revealed many defects in long-term use. On the one hand, the spring is prone to elastic fatigue during long-term and frequent use, resulting in weakened or lost elasticity, which makes it impossible for the loading gate to open or close normally, affecting the smoothness of soiled laundry disposal. On the other hand, a greater pushing force is required when opening the gate, which can easily cause hand fatigue for cleaning staff or medical staff with less strength due to frequent operation.
[0004] Therefore, in view of the many defects that have gradually been exposed in the long-term use of the traditional spring-controlled loading door, a loading door control device for laundry wells can be designed. By adopting a combination of transmission mechanism and control mechanism, using a micro servo motor as the power source, and through gear meshing transmission, the opening and closing actions of the movable door panel are precisely controlled. It is also equipped with a displacement sensor that can sense the approach of a human body or object, so as to realize the automatic sensing and opening of the loading door, thereby solving the above problems. Utility Model Content
[0005] To overcome the shortcomings of traditional spring-controlled loading doors, such as easy elastic fatigue, which prevents the loading door from opening or closing properly, and the need to apply greater pushing force when opening the door, which can easily cause hand fatigue with frequent operation, this utility model provides a loading door control device for laundry wells.
[0006] The technical solution is as follows: A laundry chute door control device includes a fixed door frame, a movable door panel, a transmission mechanism, and a control mechanism; the fixed door frame has a loading port inside, and the loading port has a movable door panel inside for daily sealing of the laundry chute; the rear end of the fixed door frame has a laundry chute connecting groove for connecting to the laundry chute opening; the top of the two side walls of the loading port have movable holes and transmission grooves respectively; the transmission groove has a transmission mechanism for driving the movable door panel inside; the top of the front end face of the fixed door frame has an embedded groove to prevent accidental contact; the embedded groove has a control mechanism for sensing and opening the movable door panel inside.
[0007] Furthermore, a movable shaft corresponding to the movable hole is provided on one side of the top of the movable door panel, with one end of the movable shaft away from the movable door panel extending into the interior of the movable hole. A first transmission shaft is provided on the other side of the top of the movable door panel, with one end of the first transmission shaft away from the movable door panel extending into the interior of the transmission groove.
[0008] Furthermore, a first bevel gear is fitted onto the outer end of the first drive shaft, and four sets of first retaining strips are arranged around the inner wall of the first bevel gear. A first retaining groove corresponding to the first retaining strips is opened on the outer end of the first drive shaft.
[0009] Furthermore, the transmission mechanism includes a micro servo motor located below the first bevel gear. The upper end of the micro servo motor is provided with a limiting plate connected to the output shaft of the micro servo motor. The upper center of the limiting plate is provided with a second transmission shaft, and the outer end of the second transmission shaft is fitted with a second bevel gear that meshes with the first bevel gear.
[0010] Furthermore, the outer end of the second drive shaft is surrounded by four sets of second retaining strips, the inner wall of the second bevel gear is surrounded by four sets of second retaining grooves corresponding to the second retaining strips, the outer edge of the drive groove is provided with a cover plate groove, the inside of the cover plate groove is provided with a closed cover plate, the surface of the closed cover plate is provided with shaft holes corresponding to the first drive shaft, and mounting holes are provided at the corners of the surface of the closed cover plate.
[0011] Furthermore, the control mechanism includes a control panel, an infrared displacement sensor is installed on the top of the control panel, a buzzer is integrated below the infrared displacement sensor, indicator light strips are provided on both sides of the buzzer, and two sets of manual switch buttons are symmetrically provided on one side edge of the control panel.
[0012] Furthermore, baffles are provided at the top and bottom of the front end of the dispensing port, and the movable door panel is located behind the two sets of baffles.
[0013] The beneficial effects are as follows: Compared to traditional spring-controlled drop doors, which gradually reveal numerous defects over long-term use, this application uses a micro servo motor in the transmission mechanism as the power source, replacing spring force with gear meshing transmission. This completely eliminates the problem of elastic decay caused by long-term use. The transmission mechanism precisely controls the opening and closing of the movable door panel, eliminating the need for users to apply significant pushing force. Operation is easy and convenient, greatly reducing the workload of cleaning staff and medical personnel. Furthermore, the infrared displacement sensor equipped in this application can detect the approach of a person or object, enabling automatic opening of the drop door. When a user approaches, the drop door opens automatically without manual operation, greatly facilitating use and improving efficiency. This invention improves the efficiency of soiled laundry disposal, making it particularly suitable for places with high personnel flow, such as hotels and hospitals. In addition to the automatic sensor opening and closing function, this application also includes a manual switch button. In case of automatic sensor failure or other special circumstances, the user can still control the opening and closing of the disposal door through the manual switch button, ensuring the normal use of the disposal door and increasing the practicality and reliability of the device. The buzzer in this application will emit a prompt sound during the opening or closing of the disposal door, and the indicator light strip will light up simultaneously when the movable door panel is opened, allowing the user to understand the status of the disposal door in a timely manner and avoiding safety accidents such as collisions caused by the sudden opening or closing of the disposal door, thus improving the safety of use. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the loading gate control device for the laundry well of this utility model; Figure 2 This is a three-dimensional structural diagram of the fixed door frame of this utility model; Figure 3 This is a three-dimensional structural diagram of the fixed door frame of this utility model from another angle; Figure 4 This is a three-dimensional structural diagram of the movable door panel of this utility model; Figure 5 This is a three-dimensional structural diagram of the transmission mechanism of this utility model; Figure 6 This is a three-dimensional structural diagram of the control mechanism of this utility model.
[0015] Explanation of reference numerals in the attached drawings: 1. Fixed door frame; 101. Discharge port; 102. Transmission groove; 103. Embedded groove; 104. Laundry chute connection groove; 105. Movable hole; 106. Stop bar; 107. Cover plate groove; 108. Closed cover plate; 109. Shaft hole; 110. Mounting hole; 2. Movable door panel; 201. Movable shaft; 202. First transmission shaft; 203. First slot; 204. First bevel gear; 205. First locking bar; 3. Transmission mechanism; 301. Miniature servo motor; 302. Limiting plate; 303. Second transmission shaft; 304. Second locking bar; 305. Second bevel gear; 306. Second slot; 4. Control mechanism; 401. Control panel; 402. Infrared displacement sensor; 403. Indicator light bar; 404. Buzzer; 405. Manual switch button. Detailed Implementation
[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example
[0017] like Figures 1-6 As shown, a laundry manhole control device includes a fixed door frame 1, a movable door panel 2, a transmission mechanism 3, and a control mechanism 4. The fixed door frame 1 has a loading port 101 inside, and the movable door panel 2 for daily sealing of the laundry manhole is provided inside the loading port 101. The rear end of the fixed door frame 1 has a laundry manhole connecting groove 104 for connecting to the laundry manhole opening. The top of the two side walls of the loading port 101 have movable holes 105 and transmission grooves 102 respectively. The transmission groove 102 has a transmission mechanism 3 for driving the movable door panel 2 inside. The top of the front end face of the fixed door frame 1 has an embedded groove 103 to prevent accidental contact. The embedded groove 103 has a control mechanism 4 for sensing and opening the movable door panel 2 inside.
[0018] The top side of the movable door panel 2 is provided with a movable shaft 201 corresponding to the movable hole 105. The end of the movable shaft 201 away from the movable door panel 2 extends into the interior of the movable hole 105. The other side of the top of the movable door panel 2 is provided with a first transmission shaft 202. The end of the first transmission shaft 202 away from the movable door panel 2 extends into the interior of the transmission groove 102. By setting the movable shaft 201 and the first transmission shaft 202, the movable shaft 201 can realize the flexible rotation of one end of the movable door panel 2 in the movable hole 105. The first transmission shaft 202 extends into the transmission groove 102, providing a connection point for the transmission mechanism 3 to drive the movable door panel 2, so that the movable door panel 2 can be opened and closed smoothly under the action of the transmission mechanism 3.
[0019] A first bevel gear 204 is sleeved on the outer end of the first drive shaft 202. Four sets of first retaining strips 205 are arranged around the inner wall of the first bevel gear 204. A first retaining groove 203 corresponding to the first retaining strips 205 is opened on the outer end of the first drive shaft 202. Through the cooperation design of the first retaining strips 205 and the first retaining grooves 203, it can be ensured that the first bevel gear 204 and the first drive shaft 202 are tightly connected and rotate synchronously, avoiding slippage during transmission, thereby ensuring the stability and accuracy of the drive mechanism 3 to drive the movable door panel 2.
[0020] The transmission mechanism 3 includes a micro servo motor 301 (model RS-380SH). The micro servo motor 301 is located below the first bevel gear 204. The upper end of the micro servo motor 301 is provided with a limiting plate 302 connected to the output shaft of the micro servo motor 301. The upper center of the limiting plate 302 is provided with a second transmission shaft 303. The outer end of the second transmission shaft 303 is fitted with a second bevel gear 305 that meshes with the first bevel gear 204. With the micro servo motor 301 as the power source, the opening and closing actions of the movable door panel 2 can be precisely controlled. The setting of the limiting plate 302 and the second transmission shaft 303 provides a stable support and transmission foundation for the second bevel gear 305. The second bevel gear 305 meshes with the first bevel gear 204 to realize the transmission and steering of power, so that the movable door panel 2 can move according to the design requirements.
[0021] Four sets of second retaining strips 304 are arranged around the outer end of the second drive shaft 303. Four sets of second retaining grooves 306 corresponding to the second retaining strips 304 are arranged around the inner wall of the second bevel gear 305. A cover plate groove 107 is provided at the outer edge of the drive groove 102. A sealing cover plate 108 is provided inside the cover plate groove 107. A shaft hole 109 corresponding to the first drive shaft 202 is provided on the surface of the sealing cover plate 108. Mounting holes 110 are provided at the corners of the surface of the sealing cover plate 108, allowing the second retaining strips 304 to pass through. The cooperation with the second slot 306 ensures a reliable connection between the second bevel gear 305 and the second drive shaft 303. The closed cover plate 108 is installed at the outer end of the transmission groove 102 through the cover plate groove 107 and the mounting hole 110, which can protect the transmission mechanism 3 and prevent dust, debris and other objects from entering the transmission groove 102 and affecting the normal operation of the transmission mechanism 3. The design of the shaft hole 109 ensures that the first drive shaft 202 can pass through the closed cover plate 108 normally without affecting the movement of the movable door panel 2.
[0022] The control mechanism 4 includes a control panel 401. An infrared displacement sensor 402 (model OPTEX OP-08C) is mounted on the top of the control panel 401. A buzzer 404 is integrated below the infrared displacement sensor 402. Indicator light strips 403 are provided on both sides of the buzzer 404. Two sets of manual switch buttons 405 are symmetrically arranged on one edge of the control panel 401. The infrared displacement sensor 402 can detect the approach of a human body or object, realizing the automatic sensing and opening of the loading door, which greatly facilitates the use. The buzzer 404 can emit a prompt sound during the opening or closing of the loading door. The indicator light strips 403 light up synchronously when the movable door panel 2 is opened as a reminder. The manual switch buttons 405 provide the function of manually controlling the opening and closing of the loading door. Even if the automatic sensing fails or other special circumstances occur, the normal use of the loading door can still be guaranteed, which increases the practicality and reliability of the device.
[0023] The front top and bottom of the dispensing port 101 are provided with baffles 106. The movable door panel 2 is located behind the two sets of baffles 106. The baffles 106 can block the gap between the movable door panel 2 and the dispensing port 101, improve the aesthetics and limit the movable door panel 2 to prevent it from rotating excessively when closed.
[0024] When a worker approaches the laundry chute 101 with soiled clothes, the infrared displacement sensor 402 located on the top of the control panel 401 quickly detects the approach of the person or object. The infrared displacement sensor 402 transmits the sensing signal to the control mechanism 4, which then activates the micro servo motor 301. The micro servo motor 301 starts running, driving the limit plate 302 and the second transmission shaft 303 to rotate via the output shaft. The second bevel gear 305 on the second transmission shaft 303 rotates accordingly. Since the second bevel gear 305 meshes with the first bevel gear 204, the first bevel gear 204 begins to rotate under the drive of the second bevel gear 305. This, in turn, drives the movable door panel 2 to rotate via the first transmission shaft 202. Simultaneously, the rotation of the first transmission shaft 202 causes the movable door panel 2 to open around the movable shaft 201 until it is fully open. At this time, the indicator light bar 403 lights up to remind the user that the chute is open and the soiled clothes can be thrown into the laundry chute. After the dirty laundry is put in, the control mechanism 4 controls the micro servo motor 301 to run in reverse, and the movable door 2 moves around the movable shaft 201 to close until it is completely closed. The buzzer 404 then sounds a warning sound, and the indicator light 403 goes out.
[0025] If the automatic sensing function malfunctions, or if the user wants to manually control the loading door for special needs, it can be operated through two sets of manual switch buttons 405 symmetrically arranged on one side edge of the control panel 401. Pressing the open button will cause the micro servo motor 301 to rotate in the forward direction and open the loading door; pressing the close button will cause the micro servo motor 301 to rotate in the reverse direction and close the loading door. During the operation, there will be a buzzer 404 prompt and the indicator light bar 403 will light up and turn off.
[0026] Its working principle is as follows: the micro servo motor 301 serves as the power source. When the micro servo motor 301 is running, its output shaft drives the limit plate 302 to rotate. The limit plate 302 drives the second transmission shaft 303 to rotate. The second transmission shaft 303 is tightly connected to the second bevel gear 305 and rotates synchronously through the cooperation of the second locking bar 304 and the second locking slot 306. The second bevel gear 305 meshes with the first bevel gear 204 and transmits power to the first bevel gear 204. The first bevel gear 204 is tightly connected to the first transmission shaft 202 and rotates synchronously through the cooperation of the first locking bar 205 and the first locking slot 203. The first transmission shaft 202 then drives the movable door panel 2 to rotate around the movable shaft 201, thereby realizing the opening and closing action of the movable door panel 2.
[0027] The infrared displacement sensor 402 uses the physical properties of infrared light for measurement. When a human body or object approaches, it will block the infrared light emitted by the infrared displacement sensor 402. The sensor receives the reflected infrared light signal and changes, thereby generating an induction signal. This signal is transmitted to the control mechanism 4. The control mechanism 4 controls the micro servo motor 301 according to the preset program to realize the automatic opening of the loading door. After the soiled clothes are put in, after a set time, the control mechanism 4 controls the micro servo motor 301 to run in reverse to realize the automatic closing of the loading door.
[0028] The control panel 401 integrates components such as an infrared displacement sensor 402, a buzzer 404, an indicator light strip 403, and a manual switch button 405. The infrared displacement sensor 402 is responsible for sensing the approach of a human body or object to realize the automatic control function; the buzzer 404 emits a prompt sound during the opening or closing of the loading door to remind the user of the status of the loading door; the indicator light strip 403 lights up synchronously when the movable door panel 2 is opened to further enhance the reminder effect; the manual switch button 405 provides a way to manually control the loading door, increasing the practicality and reliability of the device. At the same time, the sealing cover 108 is installed on the outer end of the transmission groove 102 through the cover groove 107 and the mounting hole 110, which can prevent dust, debris, etc. from entering the transmission groove 102 and protect the normal operation of the transmission mechanism 3.
[0029] Its beneficial effects are significant. This application uses the micro servo motor 301 of the transmission mechanism 3 as the power source, and replaces the spring force with gear meshing transmission, completely eliminating the problem of elastic decay caused by long-term use. The transmission mechanism 3 precisely controls the opening and closing of the movable door panel 2, without requiring the user to apply a large pushing force, making operation easy and convenient, and greatly reducing the workload of cleaning staff and medical staff. The infrared displacement sensor 402 equipped in this application can sense the approach of a human body or object, realizing the automatic sensing and opening of the disposal door. When the user approaches, the disposal door opens automatically without manual operation, greatly facilitating use and improving the efficiency of soiled laundry disposal, especially suitable for personnel. In high-traffic areas such as hotels and hospitals, in addition to the automatic sensor opening and closing function, this application also includes a manual switch button 405. In the event of a malfunction in the automatic sensor or other special circumstances, the user can still control the opening and closing of the storage door through the manual switch button 405, ensuring the normal use of the storage door and increasing the practicality and reliability of the device. The buzzer 404 in this application will emit a prompt sound during the opening or closing of the storage door, and the indicator light strip 403 will light up synchronously when the movable door panel 2 is opened to remind the user, allowing the user to understand the status of the storage door in a timely manner and avoiding safety accidents such as collisions caused by the sudden opening or closing of the storage door, thus improving the safety of use.
Claims
1. A control device for the loading gate of a laundry well, comprising a fixed door frame (1); characterized in that, It also includes a movable door panel (2), a transmission mechanism (3) and a control mechanism (4); the fixed door frame (1) has an inlet (101) inside, the inlet (101) has a movable door panel (2) for daily sealing of the laundry well, the fixed door frame (1) has a laundry well connection groove (104) for connecting the laundry well opening at the rear end, the top of the two side walls of the inlet (101) has a movable hole (105) and a transmission groove (102) respectively, the transmission groove (102) has a transmission mechanism (3) for driving the movable door panel (2) inside, the front end face of the fixed door frame (1) has an embedded groove (103) to prevent accidental contact, and the embedded groove (103) has a control mechanism (4) for sensing and opening the movable door panel (2) inside.
2. The garment drain control device for a laundry well according to claim 1, characterized in that, The top side of the movable door panel (2) is provided with a movable shaft (201) corresponding to the movable hole (105). The end of the movable shaft (201) away from the movable door panel (2) extends into the interior of the movable hole (105). The other side of the top of the movable door panel (2) is provided with a first transmission shaft (202). The end of the first transmission shaft (202) away from the movable door panel (2) extends into the interior of the transmission groove (102).
3. The garment drain control device for a laundry well according to claim 2, characterized in that, The outer end of the first drive shaft (202) is fitted with a first bevel gear (204), and the inner wall of the first bevel gear (204) is surrounded by four sets of first retaining strips (205). The outer end of the first drive shaft (202) is provided with a first retaining groove (203) corresponding to the first retaining strips (205).
4. The garment drain control device for a laundry well according to claim 1, characterized in that, The transmission mechanism (3) includes a micro servo motor (301), which is located below the first bevel gear (204). The upper end of the micro servo motor (301) is provided with a limiting disk (302) connected to the output shaft of the micro servo motor (301). The upper center of the limiting disk (302) is provided with a second transmission shaft (303), and the outer end of the second transmission shaft (303) is fitted with a second bevel gear (305) that meshes with the first bevel gear (204).
5. The garment drain control device for a laundry well according to claim 4, characterized in that, The outer end of the second drive shaft (303) is surrounded by four sets of second retaining strips (304), and the inner wall of the second bevel gear (305) is surrounded by four sets of second retaining grooves (306) corresponding to the second retaining strips (304). The outer edge of the drive groove (102) is provided with a cover plate groove (107), and the inside of the cover plate groove (107) is provided with a closed cover plate (108). The surface of the closed cover plate (108) is provided with shaft holes (109) corresponding to the first drive shaft (202), and mounting holes (110) are provided at the corners of the surface of the closed cover plate (108).
6. The garment drain control device for a laundry well according to claim 1, characterized in that, The control mechanism (4) includes a control panel (401), an infrared displacement sensor (402) is installed on the top of the surface of the control panel (401), a buzzer (404) is integrated below the infrared displacement sensor (402), display light strips (403) are provided on both sides of the buzzer (404), and two sets of manual switch buttons (405) are symmetrically provided on one side edge of the surface of the control panel (401).
7. The garment drain control device for a laundry well according to claim 1, characterized in that, The top and bottom of the front end of the delivery port (101) are equipped with baffles (106), and the movable door panel (2) is located behind the two sets of baffles (106).