Operating device for accurately braking in-place rotation of inner drum door of isolated washing machine
The control device, which combines a proximity switch and a trigger sensing block with a telescopic cylinder and a drive linkage, achieves precise braking of the inner drum door of the isolated washing machine. This solves the problem of inaccurate alignment between the inner drum door and the inlet/outlet door, and improves the accuracy and service life of the braking.
Patent Information
- Application Number
- CN202423283801.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The inner drum door of the isolated washing machine cannot be accurately aligned due to inertia, resulting in the inlet and outlet doors not aligning properly. Existing brake components have problems with wear and short service life.
The system employs a combination of control device, telescopic cylinder, drive linkage, and positioning pin. Through the cooperation of proximity switch and trigger sensing block, it achieves precise braking of the transmission pulley, ensuring accurate alignment between the inner cylinder door and the inlet/outlet door.
It achieves accurate alignment between the inner cylinder door and the inlet/outlet door, avoids excessive rotation of the transmission pulley, extends service life, improves braking accuracy and reliability, and reduces maintenance costs.
Smart Images
Figure CN223780576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a control device for the inner drum door of an isolated washing machine, and in particular to an operating device for accurately braking the inner drum door of the isolated washing machine when it is rotated into position. Background Technology
[0002] In order to facilitate feeding or discharging, the inner drum door and the discharge door of a separate washing machine need to be aligned. Due to inertia, the inner drum often rotates too far or not fully aligned when the machine stops, which prevents the inner drum door from opening for feeding or discharging. Therefore, it is necessary to brake the rotation of the inner drum. Current braking methods include installing brakes on the pulleys that drive the inner drum, such as disc brakes, clutch brakes, or other braking components. However, due to the inertia of the brakes, the inner drum is prone to over-rotation, resulting in low braking precision and accuracy. Moreover, the brake components used are all made of rubber, which wears down after prolonged use, resulting in a short service life and frequent replacements, significantly increasing costs. Utility Model Content
[0003] This utility model provides a device for accurately braking the inner drum door of an isolated washing machine when it is rotated into position. It can achieve precise braking of the transmission pulley, ensuring the alignment of the inlet / outlet door and the inner drum door, and has a long service life without wear.
[0004] This utility model adopts the following technical solution: an operating device for accurately braking the inner drum door of an isolated washing machine when it is rotated to the correct position. The inner drum's drive motor and transmission pulley are installed from bottom to top at the rear of the isolated washing machine. The transmission pulley and the inner drum are coaxially arranged and rotate coaxially. The output end of the drive motor is connected to the inner drum via a transmission belt and transmission pulley. The accurate braking operating device includes a control device, a telescopic cylinder, a drive linkage, and a positioning pin. The telescopic cylinder is installed at the rear of the isolated washing machine. The control device is connected to the control end of the telescopic cylinder and controls its on / off state. The drive linkage is mounted on a mounting bracket. The piston rod of the telescopic cylinder is connected to the upper end of the drive linkage. A guide cylinder is also horizontally installed at the rear of the isolated washing machine, opposite to the transmission pulley. The lower end of the drive linkage is connected to the positioning pin. The piston rod of the telescopic cylinder drives the positioning pin to insert into the guide cylinder through the drive linkage and can move within the guide cylinder. A positioning hole is provided on the transmission pulley.
[0005] Furthermore, the control device of this utility model includes a trigger sensing block and a proximity switch. The trigger sensing block is mounted on a transmission pulley that rotates coaxially with the inner drum of the washing machine. The proximity switch is mounted behind the isolated washing machine, opposite to the transmission pulley. The distance between the proximity switch and the positioning pin corresponds to the distance between the trigger sensing block and the positioning hole. When the transmission pulley drives the inner drum of the washing machine to rotate coaxially, the inner drum of the washing machine drives the inner drum door on the side of the inner drum to rotate. The transmission pulley also drives the trigger sensing block to rotate. The outer side of the isolated washing machine is provided with an inlet / outlet door. When it is necessary to feed or discharge materials through the inlet / outlet door, the inner drum of the washing machine... When the drive motor stops working, the inner drum of the washing machine slows down and eventually stops. During the process of the inner drum stopping, the proximity switch is turned on. When the inner drum door also rotates to correspond with the inlet / outlet door of the isolated washing machine, the proximity switch corresponds with the trigger sensing block. At this time, the position of the positioning hole also corresponds with the position of the positioning pin. The proximity switch receives the sensing signal and starts the telescopic cylinder to work. The telescopic cylinder pushes the positioning pin out of the guide cylinder through the drive linkage and inserts it into the positioning hole in place, so that the transmission pulley stops rotating completely and the inner drum of the washing machine also stops rotating completely. The inner drum door and the inlet / outlet door are set up opposite each other.
[0006] Furthermore, the proximity switch of this utility model is installed on the outer surface of the rear of the isolation washing machine, the telescopic cylinder and the drive linkage are installed inside the isolation washing machine, the guide cylinder is horizontally installed at the rear of the isolation washing machine, the telescopic cylinder is connected to the head end of the positioning pin through the drive linkage, and the tail end of the positioning pin passes through the guide cylinder to the outside of the isolation washing machine.
[0007] Furthermore, the mounting bracket of this utility model is horizontally installed inside the isolation washing machine, and the drive linkage is vertically installed on the mounting bracket. The middle part of the drive linkage is rotatably connected to the fulcrum provided on the mounting bracket, allowing the drive linkage to rotate around the fulcrum. The lower end of the drive linkage is connected to the head end of the positioning pin. When the inner drum door and the inlet / outlet door need to be aligned, the telescopic cylinder retracts the piston rod and drives the drive linkage to rotate around the fulcrum on the mounting bracket. The upper end of the drive linkage moves inward under the drive of the piston rod, and the lower end of the drive linkage moves outward, pushing the positioning pin in the guide cylinder to move towards the positioning hole and insert into the positioning hole, thereby fully braking the inner drum of the washing machine. When the inner drum of the washing machine needs to be fully released, the telescopic cylinder is activated to extend the piston rod and drive the upper end of the drive linkage to move outward. At the same time, the drive linkage rotates around the fulcrum on the mounting bracket and pushes the lower end of the drive linkage inward, pulling the positioning pin inward and out of the positioning hole, thus releasing the braking of the inner drum of the washing machine.
[0008] Furthermore, the proximity switch of this utility model is a Hall proximity switch, and the trigger sensing block is a magnetic sensing block. After the Hall proximity switch corresponds with the magnetic sensing block, it generates a signal to control the on / off state.
[0009] This utility model has the following beneficial effects: After adopting the above technical solution, this utility model
[0010] The telescopic cylinder is controlled by a proximity switch and a trigger sensor. This telescopic cylinder, via a drive linkage, moves a positioning pin within a positioning hole, braking the drive pulley. This ensures the inner drum door and the inlet / outlet door are aligned. This structure avoids the problem of the inner drum door not aligning with the inlet / outlet door due to inertia, guaranteeing alignment. It ensures the inner drum door can open smoothly during in-line and out-of-line loading / unloading in isolated washing machines. This braking structure provides precise control and high braking accuracy, allowing for accurate braking of the drive pulley and preventing over-rotation. It also offers a long service life, minimal wear, and high reliability. Furthermore, the drive linkage extends the working arm of the telescopic cylinder, making the pin's movement smoother and more secure. This prevents damage to the telescopic cylinder during operation, further extending its service life and facilitating maintenance. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the transmission pulley braking mechanism of this utility model.
[0013] Figure 2 This is a schematic diagram of the transmission pulley of this utility model when it is not braked. Detailed Implementation
[0014] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0015] exist Figure 1 and Figure 2This invention provides an operating device for accurately braking the inner drum door of an isolated washing machine when it has rotated to the correct position. The isolated washing machine 8 has a drive motor 1 and a transmission pulley 2 mounted from bottom to top on the rear of the inner drum 3. The transmission pulley 2 and the inner drum 3 are coaxially arranged and rotate coaxially. The output end of the drive motor 1 is connected to the inner drum 3 via a transmission belt 4 and the transmission pulley 2. The accurate braking operating device includes a control device, a telescopic cylinder 5, a drive linkage 6, and a positioning pin 7. The telescopic cylinder 5 is horizontally mounted on the rear of the isolated washing machine 8. The control device is connected to the control end of the telescopic cylinder 5 and controls the opening and closing of the telescopic cylinder 5. The drive linkage 6 is mounted on a mounting bracket 1. 1. The piston rod 17 of the telescopic cylinder 5 is connected to the upper end of the drive connecting rod 6. A guide cylinder 9 is also horizontally installed at the rear of the isolation washing machine 8. The guide cylinder 9 is opposite to the transmission pulley 2. The lower end of the drive connecting rod 6 is connected to the positioning pin 7. The piston rod 17 of the telescopic cylinder 5 drives the positioning pin 7 to be inserted into the guide cylinder 9 through the drive connecting rod 6 and can move inside the guide cylinder 9. A positioning hole 10 is provided on the transmission pulley 2. The control device used in this embodiment includes a trigger sensing block 12 and a proximity switch 13. The trigger sensing block 12 is installed on the transmission pulley 2, which rotates coaxially with the inner drum 3 of the washing machine. The proximity switch 13 is installed at the rear of the isolation washing machine 8, opposite to the transmission pulley 2. The distance between the proximity switch 13 and the positioning pin 7 is equal to the distance between the trigger sensing block 12 and the positioning hole 10. The distance between them corresponds to the rotation of the inner drum 3 of the washing machine. When the transmission pulley 2 drives the inner drum 3 to rotate coaxially, the inner drum 3 drives the inner drum door 14 on the side of the inner drum 3 to rotate. The transmission pulley 2 also drives the trigger sensing block 12 to rotate. The outer side of the isolation washing machine 8 is provided with an inlet / outlet door 15. When it is necessary to feed or discharge materials through the inlet / outlet door 15, the drive motor 1 of the inner drum 3 stops working. The inner drum 3 rotates and decelerates until it slowly stops. During the process of the inner drum 3 stopping rotating, the proximity switch 13 is opened. When the inner drum door 14 also rotates to correspond with the inlet / outlet door 15 of the isolation washing machine 8, the proximity switch 13 corresponds with the trigger sensing block 12. At this time, the position of the positioning hole 10 also corresponds with the position of the positioning pin 7. The proximity switch 13 obtains the sensing. Upon receiving a signal, the telescopic cylinder 5 is activated. The telescopic cylinder 5, via the drive rod 6, pushes the positioning pin 7 out of the guide cylinder 9 and inserts it into the positioned hole 10, thereby completely stopping the rotation of the transmission pulley 2 and the inner drum 3 of the washing machine. The inner drum door 14 and the inlet / outlet door 15 are aligned. In this embodiment, the proximity switch 13 is installed on the rear outer surface of the isolated washing machine 8. The telescopic cylinder 5 and the drive rod 6 are both installed inside the isolated washing machine 8. The guide cylinder 9 is horizontally installed at the rear of the isolated washing machine 8. The telescopic cylinder 5 is connected to the head end of the positioning pin 7 via the drive rod 6. The tail end of the positioning pin 7 passes through the guide cylinder 9 to the outside of the isolated washing machine 8. In this embodiment, the mounting bracket 11 is horizontally installed inside the isolated washing machine 8.The drive link 6 is longitudinally mounted on the mounting bracket 11, and the middle part of the drive link 6 is rotatably connected to the fulcrum 16 provided on the mounting bracket 11. The drive link 6 can rotate around the fulcrum 16. The lower end of the drive link 6 is connected to the head end of the positioning pin 7. When the inner cylinder door 14 and the inlet / outlet door 15 need to be aligned, the telescopic cylinder 5 retracts the piston rod 17 and drives the drive link 6 to rotate around the fulcrum on the mounting bracket 11. The upper end of the drive link 6 moves inward under the drive of the piston rod 17, and the lower end of the drive link 6 moves outward, pushing the positioning pin 7 to move towards the positioning hole 10 in the guide cylinder 9 and insert it. The washing machine drum 3 is fully braked when it enters the positioning hole 10. When the washing machine drum 3 needs to be released from full braking, the telescopic cylinder 5 extends the piston rod 17 and drives the upper end of the drive connecting rod 6 to move outward. At the same time, the drive connecting rod 6 rotates around the fulcrum 16 on the mounting bracket 11 and pushes the lower end of the drive connecting rod 6 to move inward, pulling the positioning pin 7 inward and out of the positioning hole 10, thus releasing the brake on the washing machine drum 3. In this embodiment, the proximity switch 13 is a Hall proximity switch, and the trigger sensing block 12 is a magnetic sensing block. The Hall proximity switch generates a control signal to control the on / off state after corresponding with the magnetic sensing block.
[0016] The operation process of this utility model is as follows: When it is necessary to put in or take out the items to be washed before or after washing in the isolation washing machine 8, the drive motor 1 of the inner drum 3 of the washing machine stops working. The inner drum 3 rotates slowly until it stops. During the process of the inner drum 3 stopping rotation, in order to avoid the inertia of the inner drum 3 during rotation, the inner drum door 14 of the inner drum 3 is set to face the inlet / outlet door 15 of the outer side of the isolation washing machine 8, so as to facilitate the removal or delivery of items to be washed from the inner drum 3 by opening the inner drum door 14. Therefore, the proximity switch 13 is turned on. When the transmission pulley 2 drives the inner drum 3 to rotate, so that the inner drum door 14 of the inner drum 3 rotates to face the inlet / outlet door 15, the magnetic induction block fixedly installed on the transmission pulley 2 is also in a relative state with the Hall proximity switch installed on the outer surface of the rear of the isolation washing machine 8. At this time, the position of the positioning hole 10 also corresponds to the position of the positioning pin 7. After the Hall effect proximity switch corresponds with the magnetic induction block, it generates a control signal to control the on / off state. The Hall effect proximity switch receives the induction signal and starts the telescopic cylinder 5. The telescopic cylinder 5 retracts the piston rod 17 into the cylinder body. The piston rod 17 drives the drive connecting rod 6 to rotate around the upper fulcrum of the mounting bracket 11. At the same time, the piston rod 17 drives the upper end of the drive connecting rod 6 to rotate inward, and the lower end of the drive connecting rod 6 to move outward. It pushes the positioning pin to move towards the positioning hole under the guidance of the guide cylinder and inserts into the positioning hole, thereby stopping the transmission pulley 2 from rotating and making the inner drum 3 of the washing machine fully braked. The inner drum door 14 of the inner drum 3 and the inlet / outlet door 15 are in the opposite position. When the inner drum 3 of the washing machine needs to be released from full braking, the telescopic cylinder 5 is activated to extend the piston rod 17 outward and drive the upper end of the drive connecting rod 6 to move outward. After the drive connecting rod 6 rotates around the upper fulcrum 16 of the mounting bracket 11, it pushes the lower end of the drive connecting rod 6 to move inward and pulls the positioning pin 7 to move inward and exit the positioning hole 10. The braking of the inner drum 3 of the washing machine is released.
[0017] However, this is not the only possibility. Any variations or substitutions conceived without inventive effort should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope defined in the claims.
Claims
1. An operating device for accurately braking the inner drum door of an isolated washing machine when it has rotated to the correct position, characterized in that... The isolation washing machine (8) has a drive motor (1) for the inner drum (3) and a transmission pulley (2) installed from bottom to top at the rear. The transmission pulley (2) and the inner drum (3) are coaxially arranged and rotate coaxially. The output end of the drive motor (1) is connected to the inner drum (3) via the transmission belt (4) and the transmission pulley (2) in sequence. The accurate braking operation device includes a control device, a telescopic cylinder (5), a drive linkage (6), and a positioning pin (7). The telescopic cylinder (5) is installed at the rear of the isolation washing machine (8). The control device and the telescopic cylinder (5) are connected together. The control terminal is connected, the control device controls the switch of the telescopic cylinder (5), the drive link (6) is installed on the mounting bracket (11), the piston rod (17) of the telescopic cylinder (5) is connected to the upper end of the drive link (6), and a guide cylinder (9) is also horizontally installed at the rear of the isolation washing machine (8). The guide cylinder (9) is opposite to the transmission pulley (2), and the lower end of the drive link (6) is connected to the positioning pin (7). The piston rod (17) of the telescopic cylinder (5) drives the positioning pin (7) to be inserted into the guide cylinder (9) through the drive link (6) and can move in the guide cylinder (9). A positioning hole (10) is provided on the transmission pulley (2).
2. The operating device for accurately braking the inner drum door of an isolated washing machine to its final position according to claim 1, characterized in that... The control device includes a trigger sensing block (12) and a proximity switch (13). The trigger sensing block (12) is mounted on a drive pulley (2) that rotates coaxially with the inner drum (3) of the washing machine. The proximity switch (13) is mounted behind the isolated washing machine (8) and opposite to the drive pulley (2). The distance between the proximity switch (13) and the positioning pin (7) corresponds to the distance between the trigger sensing block (12) and the positioning hole (10). When the drive pulley (2) drives the inner drum (3) of the washing machine to rotate coaxially, the inner drum (3) drives the inner drum door (14) on the side of the inner drum (3) to rotate. The drive pulley (2) also drives the trigger sensing block (12) to rotate. The outer side of the isolated washing machine (8) is provided with an inlet / outlet door (15). When it is necessary to feed or discharge materials through the inlet / outlet door (15), the drive of the inner drum (3) of the washing machine... When the motor (1) stops working, the inner drum (3) of the washing machine rotates and slows down until it stops slowly. During the process of the inner drum (3) of the washing machine stopping rotating, the proximity switch (13) is turned on. When the inner drum door (14) also rotates to correspond with the inlet / outlet door (15) of the isolated washing machine (8), the proximity switch (13) corresponds with the trigger sensing block (12). At this time, the position of the positioning hole (10) also corresponds with the position of the positioning pin (7). The proximity switch (13) receives the sensing signal and starts the telescopic cylinder (5) to work. The telescopic cylinder (5) pushes the positioning pin (7) out of the guide cylinder (9) through the drive linkage (6) and inserts it into the positioning hole (10) in place, so that the transmission pulley (2) completely stops rotating and the inner drum (3) of the washing machine also completely stops rotating. The inner drum door (14) and the inlet / outlet door (15) form a door-to-door setting.
3. The operating device for accurately braking the inner drum door of an isolated washing machine to its final position according to claim 2, characterized in that... The proximity switch (13) is installed on the outer surface of the rear of the isolation washing machine (8). The telescopic cylinder (5) and the drive linkage (6) are installed inside the isolation washing machine (8). The guide cylinder (9) is installed horizontally behind the isolation washing machine (8). The telescopic cylinder (5) is connected to the head end of the positioning pin (7) through the drive linkage (6). The tail end of the positioning pin (7) passes through the guide cylinder (9) to the outside of the isolation washing machine (8).
4. The operating device for accurately braking the inner drum door of an isolated washing machine to its final position according to claim 1 or 2, characterized in that... The mounting bracket (11) is horizontally installed inside the isolation washing machine (8). The drive linkage (6) is longitudinally installed on the mounting bracket (11), and the middle part of the drive linkage (6) is rotatably connected to the fulcrum (16) provided on the mounting bracket (11). The drive linkage (6) can rotate around the fulcrum (16). The lower end of the drive linkage (6) is connected to the head end of the positioning pin (7). When the inner drum door (14) and the inlet / outlet door (15) need to be aligned, the telescopic cylinder (5) retracts the piston rod (17) and drives the drive linkage (6) to rotate around the fulcrum on the mounting bracket (11). The upper end of the drive linkage (6) moves inward under the drive of the piston rod (17). The movement drives the lower end of the connecting rod (6) to move outward and pushes the positioning pin (7) to move in the guide cylinder (9) towards the positioning hole (10) and insert it into the positioning hole (10), thereby making the inner drum (3) of the washing machine fully braked. When the inner drum (3) of the washing machine needs to be fully braked, the telescopic cylinder (5) is activated to extend the piston rod (17) and drive the upper end of the connecting rod (6) to move outward. At the same time, the connecting rod (6) rotates around the fulcrum (16) on the mounting bracket (11) and pushes the lower end of the connecting rod (6) to move inward and pulls the positioning pin (7) to move inward and exit the positioning hole (10), thus releasing the brake of the inner drum (3) of the washing machine.
5. The operating device for accurately braking the inner drum door of an isolated washing machine to its final position according to claim 2, characterized in that... The proximity switch (13) is a Hall proximity switch, and the trigger sensing block (12) is a magnetic sensing block. The Hall proximity switch generates a control signal to control the on / off state after it corresponds with the magnetic sensing block.