Swab supply device
By designing a dispensing wheel structure for the cotton swab feeding device, automatic dispensing of cotton swabs is achieved, solving the problems of contamination and inconvenience in using cotton swab boxes, improving ease of use and reducing the risk of contamination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-29
AI Technical Summary
In the existing technology, cotton swab boxes are easily contaminated by air during use, are inconvenient to use, and cannot be used continuously.
A cotton swab feeding device was designed, including a housing, a cover and a dispensing wheel. The dispensing wheel rotates the cotton swabs from the storage section to the dispensing platform through the dispensing groove, realizing automatic dispensing and reducing contact with the external environment.
This reduces the risk of contamination during use and improves ease of use and efficiency.
Smart Images
Figure CN224298264U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of processing technology, and in particular to a cotton swab feeding device. Background Technology
[0002] In places like electronics workshops or hospitals, cotton swabs are needed for cleaning. Currently, cotton swabs are typically stored in swab boxes. However, repeatedly opening the box during use exposes the swabs to airborne contamination. Furthermore, if continuous use is required, the box must be opened repeatedly to remove the swabs, which is inconvenient. Utility Model Content
[0003] In view of the above situation, this application provides a cotton swab feeding device to solve the above problems.
[0004] This application provides a cotton swab feeding device for dispensing cotton swabs. The device includes a housing, a cover, and a dispensing wheel. The housing includes a storage section and a dispensing platform. The storage section has a dispensing port and a dispensing port. The dispensing port is configured to store cotton swabs to be dispensed within the storage section, and the dispensing platform is located on one side of the dispensing port. The cover seals the dispensing port. The dispensing wheel is rotatably connected to the housing. A portion of the dispensing wheel extends into the storage section from the dispensing port, and a portion of the dispensing wheel is exposed on the dispensing platform. The dispensing wheel has at least one dispensing groove, which is configured to receive cotton swabs from the storage section and move the cotton swabs to the dispensing platform.
[0005] In some embodiments of this application, the housing includes a first wall and a second wall, which serve as components forming a storage section. A discharge port is provided between the first and second walls, and the first wall is connected to a discharge platform. A first opening is provided at the connection between the first wall and the discharge platform, located below the second wall, and a dispensing wheel is disposed at the first opening. The minimum distance between the dispensing wheel and the second wall is less than the diameter of the cotton swab to reduce the risk of the cotton swab in the storage section leaking from the gap between the dispensing wheel and the second wall without passing through the discharge groove. The length of the first opening is less than the length of the cotton swab to reduce the risk of the cotton swab in the storage section falling from the first opening, and to facilitate the discharge groove receiving the cotton swab rotating out of the discharge platform. The areas on both sides of the first opening of the discharge platform can hold the cotton swab to limit its stay on the discharge platform.
[0006] In some embodiments of this application, the first wall is provided with a first surface, which is an arc surface with the center of curvature facing the outlet, or the first surface is an inclined surface with the inclined direction facing the outlet, so that the cotton swabs in the storage section fall into the discharge trough under the action of gravity.
[0007] In some embodiments of this application, the first wall and the discharge platform are integrally formed to improve the structural stability of the shell.
[0008] In some embodiments of this application, the dispensing wheel is provided with multiple discharge slots, which are arranged at equal intervals around the rotation axis of the dispensing wheel, so as to dispense a preset number of cotton swabs by controlling the rotation angle of the dispensing wheel.
[0009] In some embodiments of this application, the dispensing wheel includes a shaft and a plurality of gear rings sleeved and fixed to the shaft. The shaft is rotatably connected to the housing. Each gear ring has at least one tooth groove. The plurality of gear rings are spaced apart along the axial direction of the rotation axis of the dispensing wheel. The discharge groove is formed by the tooth grooves located on different gear rings. The projections of the plurality of tooth grooves forming the same discharge groove overlap, so as to reduce the weight of the dispensing wheel and improve the stability of the discharge groove in receiving cotton swabs.
[0010] In some embodiments of this application, at least part of the cover is made of a transparent material to facilitate observation of the number of swabs in the storage compartment, thereby facilitating timely replenishment of swabs.
[0011] In some embodiments of this application, the cotton swab feeding device includes a first magnetic element, which is fixed to the surface of the cover facing the storage section. The first magnetic element is configured to magnetically attract the cover to improve the stability of the cover sealing the feeding port.
[0012] In some embodiments of this application, the housing includes a first mounting portion located on one side of the storage portion and the dispensing platform. The cotton swab feeding device includes a drive mechanism disposed within the first mounting portion and connected to the dispensing wheel via a transmission drive. The drive mechanism is configured to drive the dispensing wheel to rotate.
[0013] In some embodiments of this application, the housing includes a second mounting portion located below the storage portion and the dispensing platform. The swab feeding device includes a control mechanism disposed within the first mounting portion and / or the second mounting portion. The control mechanism is communicatively connected to the drive mechanism. The control mechanism includes a first button and a second button. The first button is configured to start the drive mechanism, and the second button is configured to stop the drive mechanism.
[0014] In the aforementioned cotton swab feeding device, cotton swabs to be dispensed are stored in a storage compartment, with the discharge port sealed by a cover. A dispensing wheel is rotatably connected to the housing, with one portion extending into the storage compartment from the discharge port and the other portion exposed on the discharge platform. The dispensing wheel has at least one discharge slot. When the dispensing wheel rotates, the discharge slot first receives a cotton swab from the storage compartment, and then rotates to the discharge platform to move the cotton swab to the platform. Operators can directly retrieve cotton swabs from the discharge platform, reducing the risk of airborne contamination to the cotton swabs in the storage compartment and improving ease of use. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the structure of a cotton swab feeding device in one embodiment of this application.
[0016] Figure 2 yes Figure 1 A sectional view along section line AA.
[0017] Figure 3 This is a schematic diagram of the dispensing wheel of the cotton swab feeding device in one embodiment of this application.
[0018] Figure 4 This is a schematic diagram of the drive mechanism of the cotton swab feeding device in one embodiment of this application.
[0019] Explanation of main component symbols
[0020] 100 cotton swab feeding devices
[0021] Casing 10
[0022] Storage Department 11
[0023] Discharge port 11A
[0024] Discharge port 11B
[0025] Discharge Platform 12
[0026] First Installation Department 13
[0027] Second Installation Section 14
[0028] First Wall 101
[0029] First surface 1011
[0030] Second Wall 102
[0031] First opening 10A
[0032] Third Wall 103
[0033] Fourth Wall 104
[0034] Fifth Wall 105
[0035] Sixth Wall 106
[0036] Seventh Wall 107
[0037] Eighth Wall 108
[0038] Ninth Wall 109
[0039] Bottom wall 110
[0040] Cover 20
[0041] 30 Shift wheel
[0042] Rotation axis L
[0043] Discharge trough 30A
[0044] 30B clearance space
[0045] Shaft 31
[0046] Gear ring 32
[0047] Tooth 32A
[0048] Cover 40
[0049] Handle 41
[0050] First magnetic component 42
[0051] Drive mechanism 50
[0052] Control mechanism 60
[0053] First button 61
[0054] Second button 62
[0055] Switch 63
[0056] Relay 64
[0057] PLC module 65
[0058] Foot pads 70
[0059] 90 cotton swabs
[0060] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation
[0061] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0062] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be components positioned in between. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be components positioned in between. It should be understood that, considering the factors of actual machining tolerances, in the technical solution of this application, when two components are set parallel / perpendicularly, they are set in the same direction, and there may be a certain angle between the two components. The angle between the two components is allowed to have a tolerance of 0-±10%. When a value is considered to be "equal" to another value, it means that the two are equal within a set deviation range, which is within 10%. That is to say, when at least one of the two values fluctuates within the set deviation range, even if their values are not equal, they are still judged to be approximately equal.
[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0064] The embodiments of this application will be further described below with reference to the accompanying drawings.
[0065] Please refer to the following: Figure 1 , Figure 2 and Figure 3 One embodiment of this application provides a cotton swab feeding device 100 for dispensing cotton swabs 90. It is understood that the cotton swab feeding device 100 can also dispense other rod-shaped materials.
[0066] The cotton swab feeding device 100 includes a housing 10, a cover 20, and a dispensing wheel 30. The housing 10 includes a storage section 11 and a dispensing platform 12. The storage section 11 has a discharge port 11A and a dispensing port 11B. The discharge port 11A is configured to store cotton swabs 90 to be dispensed in the storage section 11. The dispensing platform 12 is located on one side of the dispensing port 11B. The cover 20 seals the discharge port 11A to isolate the cotton swabs 90 in the storage section 11 from the external environment.
[0067] Dispensing wheel 30 is rotatably connected to housing 10. Part of dispensing wheel 30 extends into storage compartment 11 from discharge port 11B, and part of dispensing wheel 30 is exposed on discharge platform 12. Dispensing wheel 30 is provided with at least one discharge groove 30A, which is configured to receive cotton swabs 90 in storage compartment 11 and drive cotton swabs 90 to discharge platform 12.
[0068] In the aforementioned cotton swab feeding device 100, cotton swabs 90 to be dispensed are stored in the storage section 11, and the cover 20 seals the discharge port 11A. A dispensing wheel 30 is rotatably connected to the housing 10. Part of the dispensing wheel 30 extends into the storage section 11 from the discharge port 11B, while another part of the dispensing wheel 30 is exposed on the discharge platform 12. The dispensing wheel 30 is provided with at least one discharge groove 30A. When the dispensing wheel 30 rotates, the discharge groove 30A first receives a cotton swab 90 from the storage section 11, and then rotates to the discharge platform 12 to move the cotton swab 90 to the discharge platform 12. Operators can directly retrieve the cotton swab 90 from the discharge platform 12, reducing the risk of airborne contamination of the cotton swabs 90 in the storage section 11 and improving ease of use.
[0069] Please refer to the following: Figure 2 and Figure 3 In some embodiments, the housing 10 includes a first wall 101 and a second wall 102, which serve as components forming the storage section 11. A discharge port 11B is provided between the first wall 101 and the second wall 102. The first wall 101 is connected to the discharge platform 12, and a first opening 10A is provided at the connection between the first wall 101 and the discharge platform 12. The first opening 10A is located below the second wall 102, and the dispensing wheel 30 is disposed at the first opening 10A to facilitate the reasonable arrangement of the positions of the storage section 11, the discharge platform 12, and the dispensing wheel 30, so that a portion of the dispensing wheel 30 extends into the storage section 11 from the discharge port 11B and a portion of the dispensing wheel 30 is exposed on the discharge platform 12.
[0070] The minimum gap between the dispensing wheel 30 and the second wall 102 is less than the diameter of the cotton swab 90, so as to reduce the risk that the cotton swab 90 in the storage section 11 will leak from the gap between the dispensing wheel 30 and the second wall 102 without passing through the discharge trough 30A.
[0071] Along the axial direction of the rotation axis L of the dispensing wheel 30, the length of the first opening 10A is less than the length of the cotton swab 90, so as to reduce the risk of the cotton swab 90 falling out of the first opening 10A in the storage section 11, and to facilitate the discharge groove 30A that receives the cotton swab 90 to rotate out of the discharge platform 12. The areas on both sides of the first opening 10A of the discharge platform 12 can hold the cotton swab 90 to limit the cotton swab 90 from staying on the discharge platform 12.
[0072] In some embodiments, the first wall 101 is provided with a first surface 1011, which is an arc surface with the center of curvature facing the outlet 11B, so that the cotton swabs 90 in the storage section 11 fall into the discharge trough 30A under the action of gravity.
[0073] It is understood that in some embodiments, the first surface 1011 is an inclined surface facing the outlet 11B, so that the cotton swabs 90 in the storage section 11 fall into the outlet trough 30A under the action of gravity.
[0074] Please refer to the following: Figure 2 and Figure 3 In some embodiments, the discharge trough 30A extends axially along the rotation axis L of the dispensing wheel 30. Along the rotation axis L of the dispensing wheel 30, the width of the first wall 101 is equal to the length of the cotton swab 90, so as to restrict the orientation of the cotton swab 90 in the storage section 11 to be the same as the extension direction of the discharge trough 30A, so that the cotton swab 90 in the storage section 11 falls into the discharge trough 30A under the action of gravity.
[0075] In some embodiments, the first wall 101 and the discharge platform 12 are integrally formed to improve the structural stability of the shell 10. Integral forming methods include, but are not limited to, die casting, stamping, injection molding, compression molding, and 3D printing.
[0076] Please see Figure 3 In some embodiments, the dispensing wheel 30 is provided with multiple discharge grooves 30A, which are arranged at equal intervals around the rotation axis L of the dispensing wheel 30, so as to discharge a preset number of cotton swabs 90 by controlling the rotation angle of the dispensing wheel 30.
[0077] In some embodiments, along the axial direction of the rotation axis L of the dispensing wheel 30, at least one side of the dispensing groove 30A is provided with a clearance space 30B. The dispensing groove 30A receives the stem of the cotton swab 90, and the head of the cotton swab 90 is located in the clearance space 30B, so as to reduce the risk of interference between the head of the cotton swab 90 and other components caused by the inconsistent diameters of the stem and head of the cotton swab 90.
[0078] In some embodiments, the dispensing wheel 30 includes a shaft 31 and a plurality of gear rings 32 sleeved and fixed to the shaft 31. The shaft 31 is rotatably connected to the housing 10. Each gear ring 32 is provided with at least one tooth groove 32A. Along the axial direction of the rotation axis L of the dispensing wheel 30, the plurality of gear rings 32 are spaced apart. The discharge groove 30A is formed by the tooth grooves 32A located on different gear rings 32. The projections of the plurality of tooth grooves 32A constituting the same discharge groove 30A overlap, so as to reduce the weight of the dispensing wheel 30 and improve the stability of the discharge groove 30A in receiving the cotton swabs 90.
[0079] Optionally, the distributor wheel 30 includes two gear rings 32 along the axial direction of the rotation axis L of the distributor wheel 30, wherein the projection of the tooth groove 32A of one gear ring 32 overlaps with the projection of the tooth groove 32A of the other gear ring 32 to form a discharge trough 30A.
[0080] Optionally, the number of gear rings 32 can be 2, 3, 4, etc.
[0081] Please refer to the following: Figure 1 and Figure 2 In some embodiments, at least a portion of the cover 20 is made of a transparent material to facilitate observation of the number of cotton swabs 90 in the storage section 11, thereby facilitating timely replenishment of the cotton swabs 90.
[0082] In some embodiments, the cotton swab feeding device 100 includes a handle 41, which is fixed to the surface of the cover 20 away from the storage section 11, thereby improving ease of use.
[0083] In some embodiments, the housing 10 includes a third wall 103 and a fourth wall 104. The third wall 103 supports the first wall 101, the second wall 102, and the discharge platform 12. The fourth wall 104 is fixed to the side of the first wall 101 and the second wall 102 away from the third wall 103, and the first wall 101, the second wall 102, the third wall 103, and the fourth wall 104 serve as components forming the storage section 11.
[0084] In some embodiments, at least a portion of at least one of the second wall 102 and the fourth wall 104 is made of a transparent material to facilitate observation of the number of cotton swabs 90 in the storage section 11, thereby facilitating timely replenishment of cotton swabs 90.
[0085] In some embodiments, the cotton swab feeding device 100 includes a first magnetic member 42, which is fixed to the surface of the cover 20 facing the storage section 11. The first magnetic member 42 is configured to magnetically attract the housing 10 to improve the stability of the cover 20 sealing the feeding port 11A.
[0086] Optionally, the first wall 101, the second wall 102, the third wall 103 and the fourth wall 104 are made of metal that can be magnetically attracted; or the first wall 101, the second wall 102, the third wall 103 and the fourth wall 104 are provided with a second magnetic attracting element (not shown), and the first magnetic attracting element 42 and the second magnetic attracting element correspond one-to-one and are magnetically attracted.
[0087] In some embodiments, the cover 20 has a rectangular plate structure, and the number of first magnetic attractors 42 is four and located at the four corners of the cover 20, so as to improve the stability of the magnetic attraction between the first magnetic attractors 42 and the shell 10.
[0088] Please refer to the following: Figure 1 and Figure 4 In some embodiments, the housing 10 includes a first mounting portion 13 located on one side of the storage portion 11 and the dispensing platform 12. The cotton swab feeding device 100 includes a drive mechanism 50 disposed within the first mounting portion 13 and connected to the dispensing wheel 30 via a transmission connection. The drive mechanism 50 is configured to drive the dispensing wheel 30 to rotate.
[0089] Optionally, the drive mechanism 50 is a motor or a cylinder.
[0090] In some embodiments, the housing 10 includes a fifth wall 105 and a plurality of sixth walls 106. The fifth wall 105 is located on the side of the third wall 103 away from the fourth wall 104. The plurality of sixth walls 106 are arranged around and fixed between the fifth wall 105 and the third wall 103. The third wall 103, the fifth wall 105, and the plurality of sixth walls 106 serve as components forming the first mounting portion 13. The third wall 103 has a through hole through which the shaft 31 of the shift wheel 30 passes and is drively connected to the drive mechanism 50.
[0091] Please refer to the following: Figure 1 , Figure 2 and Figure 4 In some embodiments, the housing 10 includes a second mounting portion 14 located below the storage portion 11 and the dispensing platform 12. A portion of the dispensing wheel 30 is located within the second mounting portion 14. The swab feeding device 100 includes a control mechanism 60 disposed within the first mounting portion 13 and / or the second mounting portion 14, and the control mechanism 60 is communicatively connected to the drive mechanism 50. The control mechanism 60 includes a first button 61 and a second button 62. The first button 61 is configured to start the drive mechanism 50, and the second button 62 is configured to stop the drive mechanism 50. When the first button 61 is activated, the dispensing wheel 30 rotates, and the dispensing trough 30A first receives a swab 90 from the storage portion 11, then rotates to the dispensing platform 12 to move the swab 90 to the dispensing platform 12. When the second button 62 is activated, the dispensing wheel 30 stops rotating. By controlling the first button 61 and the second button 62, a preset number of swabs 90 can be dispensed.
[0092] In some embodiments, the first button 61 and the second button 62 are provided on the second mounting portion 14 for user operation.
[0093] In some embodiments, the control mechanism 60 includes a switch 63, a relay 64, and a PLC module 65. The switch 63 is located in the second mounting portion 14 for electrical connection to an external circuit. The relay 64 and the PLC module 65 are located in the first mounting portion 13 for electrical connection to the drive mechanism 50.
[0094] In some embodiments, the housing 10 includes a seventh wall 107, an eighth wall 108, and a ninth wall 109. The seventh wall 107 and the eighth wall 108 are fixed to the surface of the third wall 103 facing the fourth wall 104. The seventh wall 107 is connected to the side of the first wall 101 away from the discharge platform 12 and extends below the first wall 101. The eighth wall 108 is connected to the side of the discharge platform 12 away from the first wall 101 and extends below the discharge platform 12. The ninth wall 109 is located below the storage section 11 and the discharge platform 12 and is fixed to the seventh wall 107 and the eighth wall 108. The third wall 103, the seventh wall 107, the eighth wall 108, and the ninth wall 109 serve as components forming the second mounting section 14.
[0095] In some embodiments, the first button 61 and the second button 62 are exposed on the ninth wall 109.
[0096] In some embodiments, the housing 10 includes a bottom wall 110 fixed below the seventh wall 107, the eighth wall 108, and the ninth wall 109. The third wall 103, the seventh wall 107, the eighth wall 108, the ninth wall 109, and the bottom wall 110 serve as components forming the second mounting portion 14. The bottom wall 110 provides protection for the control mechanism 60 located within the second mounting portion 14.
[0097] In some embodiments, the swab feeding device 100 includes a foot pad 70, which is fixed to the underside of the housing 10 and supports the housing 10.
[0098] In summary, in the aforementioned cotton swab feeding device 100, the cotton swabs 90 to be dispensed are stored in the storage section 11, and the cover 20 seals the discharge port 11A. A dispensing wheel 30 is rotatably connected to the housing 10. Part of the dispensing wheel 30 extends into the storage section 11 from the discharge port 11B, while another part of the dispensing wheel 30 is exposed on the discharge platform 12. The dispensing wheel 30 is provided with at least one discharge groove 30A. When the dispensing wheel 30 rotates, the discharge groove 30A first receives a cotton swab 90 from the storage section 11, and then rotates to the discharge platform 12 to move the cotton swab 90 to the discharge platform 12. Operators can directly retrieve the cotton swab 90 from the discharge platform 12, reducing the risk of airborne contamination of the cotton swabs 90 in the storage section 11 and improving ease of use.
[0099] In addition, those skilled in the art may make other changes within the spirit of this application. Of course, all such changes made in accordance with the spirit of this application should be included within the scope disclosed in this application.
Claims
1. A cotton swab feeding device for dispensing cotton swabs, characterized in that, The cotton swab feeding device includes: The housing includes a storage section and a discharging platform. The storage section is provided with a dispensing port and a discharging port. The dispensing port is configured to store the cotton swabs to be dispensed in the storage section. The discharging platform is located on one side of the discharging port. The cover seals the discharge port; A dispensing wheel is rotatably connected to the housing. A portion of the dispensing wheel extends into the storage compartment from the discharge port, while another portion of the dispensing wheel is exposed on the discharge platform. The dispensing wheel is provided with at least one discharge slot, which is configured to receive the cotton swabs in the storage compartment and move the cotton swabs to the discharge platform.
2. The cotton swab feeding device as described in claim 1, characterized in that, The housing includes a first wall and a second wall, which together form the storage section. The discharge port is located between the first wall and the second wall. The first wall is connected to the discharge platform. A first opening is located at the connection between the first wall and the discharge platform. The first opening is located below the second wall. The dispensing wheel is located at the first opening. The minimum distance between the dispensing wheel and the second wall is less than the diameter of the cotton swab. Along the axial direction of the rotation axis of the dispensing wheel, the length of the first opening is less than the length of the cotton swab.
3. The cotton swab feeding device as described in claim 2, characterized in that, The first wall has a first surface, which is an arc surface with the center of curvature facing the discharge port, or the first surface is an inclined surface with the inclined direction facing the discharge port.
4. The cotton swab feeding device as described in claim 2, characterized in that, The first wall and the discharge platform are integrally formed.
5. The cotton swab feeding device as described in claim 1, characterized in that, The dispensing wheel is provided with multiple discharge slots, which are arranged at equal intervals around the rotation axis of the dispensing wheel.
6. The cotton swab feeding device as described in claim 1 or 5, characterized in that, The dispensing wheel includes a shaft and a plurality of gear rings sleeved and fixed to the shaft. The shaft is rotatably connected to the housing. Each gear ring has at least one tooth groove. Along the axial direction of the rotation axis of the dispensing wheel, the plurality of gear rings are spaced apart. The discharge trough is formed by the tooth grooves located on different gear rings, and the projections of the plurality of tooth grooves constituting the same discharge trough overlap.
7. The cotton swab feeding device as described in claim 1, characterized in that, At least a portion of the cover is made of a transparent material.
8. The cotton swab feeding device as described in claim 1, characterized in that, The cotton swab feeding device includes a first magnetic element, which is fixed to the surface of the cover facing the storage section, and is configured to magnetically attract the housing.
9. The cotton swab feeding device as described in claim 1, characterized in that, The housing includes a first mounting portion, which is located on one side of the storage portion and the discharge platform; The cotton swab feeding device includes a drive mechanism, which is located in the first mounting part and is connected to the dispensing wheel via a transmission. The drive mechanism is configured to drive the dispensing wheel to rotate.
10. The cotton swab feeding device as described in claim 9, characterized in that, The housing includes a second mounting portion, which is located below the storage portion and the discharge platform; The cotton swab feeding device includes a control mechanism located in the first mounting part and / or the second mounting part. The control mechanism is communicatively connected to the drive mechanism. The control mechanism includes a first button and a second button. The first button is configured to control the drive mechanism to start, and the second button is configured to control the drive mechanism to stop.