Intelligent combing equipment with moving track

Abstract

The intelligent combing equipment with the moving track comprises a combing robot and the moving track, the combing robot is provided with a machine base, a mechanical arm, moving wheels, a main control circuit board, a driving motor and a combing module, the machine base is arranged on the moving track, the moving wheels are arranged at the bottom of the machine base, and the main control circuit board is arranged on the machine base. The mechanical arm is installed on the machine base, the combing module is arranged at the tail end of the mechanical arm, the main control circuit board and the driving motor are arranged in the machine base, and the moving wheels drive the machine base to move along the moving track so as to adjust the relative position of the combing module and the head of a user. And when the user adjusts the seat mechanism and the head position of the user also changes along with the seat mechanism, the combing robot automatically adjusts the distance between the combing robot and the head position of the user, so that the head position of the user is kept within the working range of the combing module.

Description

Technical Field

[0001] The utility model relates to intelligent hair combing equipment technology, in particular to an intelligent hair combing equipment with a movable track. Background Art

[0002] Combing your hair is a simple yet effective health habit that can improve blood circulation to the scalp, improve hair quality, and contribute to overall health.

[0003] The benefits of combing your hair include promoting blood circulation and unblocking meridians: Traditional Chinese Medicine believes that there are many acupuncture points on the scalp, and combing your hair is equivalent to massaging these acupuncture points, which helps to promote the flow of Yang Qi and blood; strengthening hair roots: Combing your hair regularly can dredge the meridians of the scalp, thereby moisturizing the hair and reducing hair loss; preventing spinal diseases and colds: Using a comb or combing the back of your hair to massage the Dazhui acupoint can help prevent spinal diseases and colds and fevers.

[0004] However, when users sit in a chair for a long time, they need to change their posture or lower the seat angle. Users need to lean against the seat back or lie down. At this time, the robotic arm of the smart combing device is not long enough or the position needs to be adjusted manually, which is inconvenient to use. Utility Model Content

[0005] Based on the deficiencies of the existing technology, the purpose of the present invention is to provide an intelligent combing device with a movable track. When the user adjusts the seat mechanism and the user's head position also changes with the seat mechanism, the combing robot automatically adjusts the distance between it and the user's head position to keep the user's head position within the working range of the combing module.

[0006] In order to achieve the above-mentioned objectives, the present invention provides an intelligent combing device with a movable track, including a combing robot, a movable track and an identification device, wherein the movable track is located in the working area of the intelligent combing device, and the combing robot is provided with a base, a robotic arm, a movable wheel, a main control circuit board, a drive motor and a combing module, the base is arranged on the movable track, the movable wheel is arranged at the bottom of the base, the robotic arm is installed on the base, and the combing module is arranged at the end of the robotic arm, the main control circuit board and the drive motor are arranged in the base, the output shaft of the drive motor is connected to the movable wheel, and the main control circuit board is electrically connected to the drive motor and the identification device. When the identification device identifies that the user's head has displaced, the identification device feeds back a signal to the main control circuit board, and the main circuit board controls the drive motor to drive the movable wheel to rotate, and the movable wheel drives the base to move along the movable track and keep the position of the user's head within the working range of the combing module.

[0007] As an improvement of the smart combing device with a movable track of the utility model, the movable wheel of the smart combing device with a movable track of the utility model is provided with teeth, the movable track is provided with a slide groove, the slide groove is provided with a rack, the movable wheel cooperates with the slide groove, and the teeth are meshed and connected with the rack.

[0008] As an improvement of the intelligent combing device with a movable track of the utility model, the movable track of the intelligent combing device with a movable track of the utility model is extended along the front-to-back direction, and a limiting rib is respectively provided on the left and right sides of the movable track. The base is provided with two limiting grooves, and the two limiting grooves are respectively located on the left and right sides of the movable wheel. The two limiting ribs are respectively inserted into the two limiting grooves, and the limiting grooves can slide back and forth along the limiting ribs.

[0009] As an improvement of the intelligent combing device with a movable track of the utility model, the movable track of the intelligent combing device with a movable track of the utility model is extended along the front-to-back direction, and the movable track is provided with two or more slide grooves along the front-to-back direction, and any two of the slide grooves are respectively arranged close to the left side and the right side of the movable track, and the movable wheels are provided with two or more, and the two or more movable wheels are respectively matched with the two or more slide grooves.

[0010] As an improvement of the smart combing device with a movable track of the present invention, the smart combing device with a movable track of the present invention is also provided with a connecting rod and a seat mechanism, the seat mechanism is located in the working area of the smart combing device, the seat mechanism is provided with a mounting seat, the connecting rod includes a first connecting part and a second connecting part arranged relatively, the first connecting part is connected to the movable track, and the second connecting part is connected to the mounting seat.

[0011] As an improvement of the intelligent combing device with a movable track of the present invention, the combing robot of the intelligent combing device with a movable track of the present invention also includes an adjusting rod, which is vertically arranged, and the lower end of the adjusting rod is fixed to the base, and the upper end of the adjusting rod is connected to the mechanical arm. The adjusting rod can adjust the height in the up and down directions, and the recognition device is a 3D camera, which captures the user's head position and feeds back the signal to the main control circuit board, and the moving wheel drives the base to move along the movable track. At the same time, the main control circuit board controls the adjusting rod to adjust the height so that the user's head position remains within the working range of the combing module.

[0012] As an improvement of the intelligent combing device with a movable track of the utility model, the base of the intelligent combing device with a movable track of the utility model is provided with an automatic guiding device, the movable track is a magnetic guide bar or an optical guide bar, and the automatic guiding device serves as a moving guide based on the signal fed back by the magnetic guide bar or the optical guide bar.

[0013] As an improvement of the smart combing device with a movable track of the present invention, the smart combing device with a movable track of the present invention also includes a seat mechanism, which is located in the working area of the smart combing device, and the movable track extends backward from the left side of the seat mechanism to the right side of the seat mechanism.

[0014] As an improvement of the smart combing device with a movable track of the present invention, the smart combing device with a movable track of the present invention also includes a seat mechanism, which is located in the working area of the smart combing device, and the movable track is suspended on one side of the seat mechanism.

[0015] As an improvement of the intelligent combing device with a movable track of the present invention, the seat mechanism of the intelligent combing device with a movable track of the present invention includes a mounting seat, a seat cushion is provided on the mounting seat, and the movable track is provided above the seat cushion.

[0016] As an improvement of the intelligent combing device with a movable track of the utility model, the seat mechanism of the intelligent combing device with a movable track of the utility model also includes a left armrest and a right armrest, the left armrest and the right armrest are respectively located on the left and right sides of the mounting seat, the movable track is arranged along the front-to-back direction, and the movable track is installed on the left armrest or the right armrest.

[0017] As an improvement of the smart combing device with a movable track of the utility model, the smart combing device with a movable track of the utility model also includes a right fixed rod, and the seat mechanism also includes a left armrest and a right armrest, and the left armrest and the right armrest are respectively located on the left and right sides of the mounting seat, and the fixed rod is installed on the side of the left armrest or the right armrest away from the mounting seat, and the movable track is arranged along the front-to-back direction and connected to the fixed rod.

[0018] As an improvement of the intelligent combing device with a movable track of the utility model, the intelligent combing device with a movable track of the utility model also includes a left fixed rod and a right fixed rod, and the seat mechanism also includes a left armrest and a right armrest, and the left armrest and the right armrest are respectively located on the left and right sides of the mounting seat, and the movable track extends backward from one side of the left armrest to one side of the right armrest, and the left fixed rod is connected between the movable track and the left armrest, and the right fixed rod is connected between the movable track and the right armrest.

[0019] Compared with the prior art, the present invention has the following beneficial effects: by setting a movable track, when the user adjusts the seat mechanism and the user's head position also changes with the seat mechanism, the main control circuit board controls the drive motor to drive the movable wheel to rotate, so as to drive the combing robot to move toward the user's head position through the movable track, so that the combing robot automatically adjusts the distance between it and the user's head position, which can not only ensure that the user's head position remains within the working range of the combing module, but also avoids the need to manually move the combing robot to adjust the distance between it and the user's head position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a preferred embodiment of the intelligent combing device with a movable track of the present utility model;

[0021] Figure 2 This is a structural diagram of the state of the seat mechanism of the preferred embodiment of the intelligent combing device with a movable track of the utility model;

[0022] Figure 3 This is an exploded view of a preferred embodiment of the intelligent combing device with a movable track of the present utility model;

[0023] Figure 4 This is a cross-sectional view of a preferred embodiment of the intelligent combing device with a movable track of the present utility model;

[0024] Figure 5 This is a structural diagram of another embodiment of the intelligent combing device with a movable track of the present utility model;

[0025] Figure 6 for Figure 5 sectional view of

[0026] Figure 7 for Figure 6 A magnified schematic diagram of point A;

[0027] Figure 8 This is a structural diagram of another embodiment 2 of the intelligent combing device with a movable track of the present utility model;

[0028] Figure 9 This is a structural diagram of another embodiment 3 of the intelligent combing device with a movable track of the present utility model;

[0029] Figure 10 for Figure 11 sectional view of

[0030] Figure 11 This is a structural diagram of another fourth embodiment of the intelligent combing device with a movable track of the present utility model.

[0031] Figure 12 This is a structural diagram of another fifth embodiment of the intelligent combing device with a movable track of the present invention.

[0032] Figure 13 This is a structural diagram of another sixth embodiment of the intelligent combing device with a movable track of the present invention.

[0033] Figure 14 This is a structural diagram of another embodiment 7 of the intelligent combing device with a movable track of the present invention.

[0034] Figure 15 This is a structural diagram of another eighth embodiment of the intelligent combing device with a movable track of the present utility model. DETAILED DESCRIPTION

[0035] refer to Figure 1-15 , describe in detail the preferred embodiments and other embodiments of the intelligent combing device with a movable track of the present invention.

[0036] refer to Figure 1-6In a preferred embodiment, the utility model is an intelligent combing device with a movable track 6, comprising a seat mechanism 2, a combing robot 1, a movable track 6 and an identification device 9, the movable track 6 is a working area of the intelligent combing device. In this embodiment, the working area of the intelligent combing device is provided with a seat mechanism 2, the movable track 6 is located on one side or around the seat mechanism 2, the combing robot 1 is provided with a base 11, a robotic arm 12, a movable wheel 5, a main control circuit board 3, a drive motor 4 and a combing module 7, the base 11 is provided on the movable track 6, the movable wheel 5 is provided at the bottom of the base 11, the robotic arm 12 is installed on the base 11, the combing module 7 is provided at the end of the robotic arm 12, the main control circuit board 3 and the drive motor 4 are provided in the base 11, the output shaft of the drive motor 4 is connected to the movable wheel 5, the main control circuit board 3 is connected to the drive motor 4 is electrically connected to the recognition device 9. When the recognition device 9 recognizes that the user's head has moved, the recognition device 9 feeds back a signal to the main control circuit board 3. The main control circuit board 3 controls the drive motor 4 to drive the mobile wheel 5 to rotate. The mobile wheel 5 drives the base 11 to move along the mobile track 6 and keeps the user's head position within the working range of the combing module 7. The recognition device 9 includes a camera, a laser radar, an infrared ray, an ultrasonic wave and other ranging recognition devices 9. The seat mechanism 2 can adjust the angle of its backrest 21 so that the user can lean or lie down. At this time, the length of the mechanical arm 12 and the combing module 7 is not enough to reach above the user's head. After recognition by the recognition device 9, the signal is fed back to the main control circuit board 3. The main circuit board 3 controls the drive motor 4 to drive the mobile wheel 5 to rotate, and moves the mechanical arm 12 and the combing module 7 to above the user's head. It is intelligent and convenient to meet user needs.

[0037] refer to Figure 7-9 In another embodiment 1, the movable wheel 5 of the intelligent combing device with a movable track of the present invention is provided with teeth 51, the movable track 6 is provided with a slide groove 61, the slide groove 61 is provided with a rack 611, the movable wheel 5 cooperates with the slide groove 61, and the teeth 51 are meshed and connected with the rack 611.

[0038] refer to Figure 7-9In another embodiment 1, the movable track 6 of the intelligent combing device with a movable track of the present invention is provided on the left side or the right side of the seat mechanism 2, and the movable track 6 extends in the front-to-back direction. A limiting rib 66 is provided on the left and right sides of the movable track 6, respectively. The base 11 is provided with two limiting grooves 111, and the two limiting grooves 111 are respectively located on the left and right sides of the movable wheel 5. The two limiting ribs 66 are respectively inserted into the two limiting grooves 111, and the limiting grooves 111 can slide back and forth along the limiting ribs 66. By setting the limiting rib 66 to be inserted into the limiting grooves 111, the limiting grooves 111 can slide back and forth along the limiting ribs 66, so that the base 11 can stably cooperate with the movable track 6 during the movement.

[0039] refer to Figure 1-4 In a preferred embodiment, the movable track 6 of the intelligent combing device with a movable track of the present invention is arranged on the left or right side of the seat mechanism 2, and the movable track 6 extends along the front-to-back direction. The movable track 6 is provided with two or more slide grooves 61 along the front-to-back direction, and any two of the slide grooves 61 are respectively arranged close to the left side of the movable track 6 and the right side of the movable track 6. The movable wheels 5 are provided with two or more, and two or more movable wheels 5 are respectively matched with two or more slide grooves 61. By setting any two of the slide grooves 61 close to the left side of the movable track 6 and the right side of the movable track 6, the base can maintain balance in the left and right directions during movement.

[0040] refer to Figure 1-4 In a preferred embodiment, the intelligent combing device with a movable track of the present invention is further provided with a connecting rod 8, and the seat mechanism 2 is provided with a mounting seat 23, which is used to be supported on the ground. The connecting rod 8 includes a first connecting portion 81 and a second connecting portion 82 that are relatively arranged. The first connecting portion 81 is connected to the movable track 6, and the second connecting portion 82 is connected to the mounting seat 23 to fix the movable track 6 to the mounting seat 23.

[0041] refer to Figure 5In another embodiment 1, the combing robot 1 of the intelligent combing device with a movable track of the present invention also includes an adjusting rod 13, which is vertically arranged, and the lower end of the adjusting rod 13 is fixed to the base 11, and the upper end of the adjusting rod 13 is connected to the mechanical arm 12. The adjusting rod 13 can adjust the height in the up and down directions. The recognition device 9 is a 3D camera, which captures the user's head position and feeds back the signal to the main control circuit board 3. The main control circuit board 3 controls the driving motor 4 to drive the moving wheel 5 to rotate, and the moving wheel 5 drives the base 11 to move along the movable track 6. At the same time, the main control circuit board 3 controls the adjusting rod 13 to adjust the height so that the user's head position remains within the working range of the combing module 7. Specifically, the adjustment rod 13 includes a fixed portion 131 and a sliding portion 132. The fixed portion 131 is fixed to the base 11. The sliding portion 132 is sleeved on the fixed portion 131 and can slide up and down relative to the fixed portion 131. The adjustment rod 13 also includes a lifting motor (not shown). The output shaft of the lifting motor is connected to the sliding portion 132. The lifting motor is electrically connected to the main control circuit board 3. In this embodiment, the lifting motor is disposed on the base 11. In other embodiments, the lifting motor can be disposed on the robotic arm 12. The 3D camera captures the user's head position and feeds back a signal to the main control circuit board 3. The main control circuit board 3 controls the drive motor 4 to rotate the movable wheel 5. The movable wheel 5 drives the base 11 to move along the movable track 6. At the same time, the main control circuit board 3 controls the operation of the lifting motor. The lifting motor controls the sliding portion 132 to move up and down along the fixed portion 131 to adjust the height of the combing module 7 so that the user's head position remains within the operating range of the combing module 7.

[0042] refer to Figure 9 、 10 In other embodiment three, the base 11 of the intelligent combing device with a movable track of the utility model is provided with an automatic guide device 112, the movable track 6 is a magnetic guide bar or an optical guide bar, and the automatic guide device uses the signal feedback from the magnetic guide bar or the optical guide bar as a moving guide.

[0043] refer to Figure 11 In other embodiment four, the intelligent combing device with a movable track 6 of the utility model also includes a seat mechanism 2, and the seat mechanism 2 is located in the working area of the intelligent combing device. The movable track 6 extends backward from the left side of the seat mechanism 2 to the right side of the seat mechanism 2. In other embodiments, the movable track 6 can be fixed to the seat mechanism 2 through a connecting structure.

[0044] refer to Figure 12In other embodiment five, the movable track 6 of the smart combing head of the utility model includes a first track 62 and a second track 63, the first track 62 and the second track 63 are distributed in a T shape, and the area enclosed by the first track 62 and the second track 63 is for the seat mechanism 2 to be placed.

[0045] refer to Figure 13 In another sixth embodiment, the intelligent combing device with a movable track 6 of the present invention further includes a seat mechanism 2, which is located in the working area of the intelligent combing device, and the movable track 6 is suspended on one side of the seat mechanism 2. The seat mechanism 2 includes a mounting seat 23, on which a seat cushion 26 is provided, and the movable track 6 is provided above the seat cushion 26. Specifically, the seat mechanism 2 further includes a left armrest 24 and a right armrest 25, which are respectively located on the left and right sides of the mounting seat 23. The movable track 6 is arranged in the front-to-back direction and is installed on the left armrest 24 or the right armrest 25. The base 11 is arranged on the moving track 6, the moving wheel 5 is arranged at the bottom of the base 11, the mechanical arm 12 is installed on the base 11, the combing module 7 is arranged at the end of the mechanical arm 12, and the mechanical arm 12 is provided with an identification device 9. The main control circuit board 3 and the drive motor 4 are arranged in the base 11. When the identification device 9 identifies that the user's head has moved, the identification device 9 feeds back a signal to the main control circuit board 3. The main control circuit board 3 controls the drive motor 4 to drive the moving wheel 5 to rotate. The moving wheel 5 drives the base 11 to move along the moving track 6 and keeps the user's head position within the working range of the combing module 7. In other embodiments seven, as Figure 14 As shown, it also includes a right fixed rod 67. The seat mechanism 2 also includes a left armrest 24 and a right armrest 25. The left armrest 24 and the right armrest 25 are respectively located on the left and right sides of the mounting seat 23. The fixed rod 67 is installed on the side of the left armrest 24 or the right armrest 25 away from the mounting seat 23. The movable track 6 is arranged along the front-to-back direction and is connected to the fixed rod 67.

[0046] refer to Figure 15In other embodiment eight, the intelligent combing device with a movable track 6 of the utility model also includes a left fixed rod 671 and a right fixed rod 672, and the seat mechanism 2 also includes a left armrest 24 and a right armrest 25, and the left armrest 24 and the right armrest 25 are respectively located on the left and right sides of the mounting seat 23, and the movable track 6 extends backward from one side of the left armrest 24 to one side of the right armrest 25, and the left fixed rod 671 is connected between the movable track 6 and the left armrest 24, and the right fixed rod 672 is connected between the movable track 6 and the right armrest 25. When the recognition device 9 recognizes that the user's head has moved, the recognition device 9 feeds back a signal to the main control circuit board 3, and the main control circuit board 3 controls the drive motor 4 to drive the moving wheel 5 to rotate, and the moving wheel 5 drives the base 11 to move along the moving track 6, and keeps the user's head position within the working range of the combing module 7. According to the user's combing needs, the base 11 can move in an arc along the outer periphery of the seat mechanism 22, which is more convenient for combing operations.

[0047] Compared with the prior art, the present invention has the following beneficial effects: by setting a movable track, when the user adjusts the seat mechanism and the user's head position also changes with the seat mechanism, the main control circuit board controls the drive motor to drive the movable wheel to rotate, so as to drive the combing robot to move toward the user's head position through the movable track, so that the combing robot automatically adjusts the distance between it and the user's head position, which can not only ensure that the user's head position remains within the working range of the combing module, but also avoids the need to manually move the combing robot to adjust the distance between it and the user's head position.

[0048] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An intelligent combing device with a movable track, characterized in that: It includes a combing robot, a moving track and an identification device, wherein the moving track is arranged in the working area of the intelligent combing device, and the combing robot is provided with a base, a mechanical arm, a moving wheel, a main control circuit board, a driving motor and a combing module. The base is arranged on the moving track, the moving wheel is arranged at the bottom of the base, the mechanical arm is installed on the base, and the combing module is arranged at the end of the mechanical arm. The main control circuit board and the driving motor are arranged in the base, and the output shaft of the driving motor is connected to the moving wheel. The main control circuit board is electrically connected to the driving motor and the identification device. When the identification device identifies that the user's head has displaced, the identification device feeds back a signal to the main control circuit board, and the main circuit board controls the driving motor to drive the moving wheel to rotate. The moving wheel drives the base to move along the moving track and keeps the position of the user's head within the working range of the combing module.

2. The intelligent combing device with a movable track according to claim 1, characterized in that: The moving wheel is provided with teeth, the moving track is provided with a slide groove, the slide groove is provided with a rack, the moving wheel cooperates with the slide groove, and the teeth are meshed and connected with the rack.

3. The intelligent combing device with a movable track according to claim 2, characterized in that: The movable track is extended along the front-to-back direction, and a limiting rib is respectively provided on the left and right sides of the movable track. The machine base is provided with two limiting grooves, and the two limiting grooves are respectively located on the left and right sides of the movable wheel. The two limiting ribs are respectively inserted into the two limiting grooves, and the limiting grooves can slide back and forth along the limiting ribs.

4. The intelligent combing device with a movable track according to claim 1 or 2, characterized in that: The movable track is extended along the front-to-back direction, and is provided with two or more slide grooves along the front-to-back direction. Any two of the slide grooves are respectively arranged close to the left side and the right side of the movable track. The movable wheels are provided with two or more, and the two or more movable wheels are respectively matched with the two or more slide grooves.

5. The intelligent combing device with a movable track according to claim 1, characterized in that: A connecting rod and a seat mechanism are also provided. The seat mechanism is located in the working area of the intelligent combing device. The seat mechanism is provided with a mounting seat. The connecting rod includes a first connecting part and a second connecting part arranged opposite to each other. The first connecting part is connected to the movable track, and the second connecting part is connected to the mounting seat.

6. The intelligent combing device with a movable track according to claim 1, characterized in that: The combing robot also includes an adjusting rod, which is vertically arranged, with the lower end of the adjusting rod fixed to the base, and the upper end of the adjusting rod connected to the robotic arm. The adjusting rod can adjust the height in the up and down directions. The recognition device is a 3D camera, which captures the user's head position and feeds back the signal to the main control circuit board. The moving wheel drives the base to move along the moving track, and the main control circuit board controls the height adjustment of the adjusting rod to keep the user's head position within the working range of the combing module.

7. The intelligent combing device with a movable track according to claim 1, characterized in that: An automatic guiding device is provided on the machine base, and the moving track is a magnetic guiding strip or an optical guiding strip. The automatic guiding device uses the feedback signal of the magnetic guiding strip or the optical guiding strip as a moving guide.

8. The intelligent combing device with a movable track according to claim 1, characterized in that: It also includes a seat mechanism, which is located in the working area of the intelligent combing device, and the movable track extends backward from the left side of the seat mechanism to the right side of the seat mechanism.

9. The intelligent combing device with a movable track according to claim 1, characterized in that: It also includes a seat mechanism, which is located in the working area of the intelligent combing device, and the movable track is suspended on one side of the seat mechanism.

10. The intelligent combing device with a movable track according to claim 9, characterized in that: The seat mechanism comprises a mounting seat, a seat cushion is provided on the mounting seat, and the movable track is arranged above the seat cushion.

11. The intelligent combing device with a movable track according to claim 10, characterized in that: The seat mechanism also includes a left armrest and a right armrest, which are respectively located on the left and right sides of the mounting seat. The movable track is arranged along the front-back direction and is installed on the left armrest or the right armrest.

12. The intelligent combing device with a movable track according to claim 10, characterized in that: It also includes a right fixed rod, and the seat mechanism also includes a left armrest and a right armrest, the left armrest and the right armrest are respectively located on the left and right sides of the mounting seat, the fixed rod is installed on the side of the left armrest or the right armrest away from the mounting seat, and the movable track is arranged along the front-to-back direction and connected to the fixed rod.

13. The intelligent combing device with a movable track according to claim 10, characterized in that: It also includes a left fixed rod and a right fixed rod, and the seat mechanism also includes a left armrest and a right armrest, the left armrest and the right armrest are respectively located on the left and right sides of the mounting seat, the movable track extends backward from one side of the left armrest to one side of the right armrest, the left fixed rod is connected between the movable track and the left armrest, and the right fixed rod is connected between the movable track and the right armrest.

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