Scanner

Abstract

The present application provides a scanner, comprising a housing, a scanning component, a driving component and a guide transmission belt. The scanning component is assembled on the housing and extends in a first direction; the driving component is arranged on the scanning component; and the guide transmission belt is fixed to the housing and is transmission-connected with the driving component, the guide transmission belt extends in a second direction perpendicular to the first direction, and the driving component is movably connected to the guide transmission belt along the guide transmission belt to drive the scanning component to move relative to the guide transmission belt. The scanner of the present application occupies a small space and saves structural space.

Description

Technical Field

[0001] The present application relates to the field of scanning, and in particular to a scanner. Background Art

[0002] A scanner is an optical image scanning device. The scanner includes a scanning head and a guide track. When performing a task, the scanning head completes the scanning journey along the guide track, thereby converting the information of the document to be scanned into a computer graphic file.

[0003] In the related art, the scanner also includes a transmission mechanism, which includes a motor and a transmission belt connected to the motor, respectively arranged on the housing. The scanning head is fixed on the transmission belt, and the motor drives the transmission belt so that the transmission belt and the scanning head are rotated simultaneously. The transmission mechanism arranged in this way occupies a large space. Summary of the invention

[0004] The present application provides a scanner, comprising:

[0005] case;

[0006] A scanning assembly, assembled on the housing and extending in a first direction;

[0007] A driving component, disposed on the scanning component; and

[0008] The guide transmission belt is fixed to the shell and is in transmission connection with the driving component. The guide transmission belt extends in a second direction perpendicular to the first direction. The driving component is movably connected to the guide transmission belt along the guide transmission belt to drive the scanning component to move relative to the guide transmission belt.

[0009] Optionally, the driving assembly includes a driving gear connected to the scanning assembly, and the driving gear includes a plurality of driving teeth arranged along the circumference of the driving gear;

[0010] The guide transmission belt includes a plurality of transmission teeth arranged on the outer surface of the guide transmission belt, the driving teeth are meshed with the transmission teeth, and when the driving gear rotates, the plurality of driving teeth move relative to the plurality of transmission teeth.

[0011] Optionally, the driving assembly includes a reduction gear and a motor, the reduction gear is connected to the scanning assembly, the reduction gear includes a first reduction gear and a second reduction gear; the outer diameter of the first reduction gear is smaller than the outer diameter of the second reduction gear, the motor is drivingly connected to the first reduction gear, the first reduction gear is meshed with the second reduction gear, and the second reduction gear is connected to the driving gear.

[0012] Optionally, the second reduction gear and the driving gear are axially coaxially fixedly connected, and the driving gear is axially located on a side of the second reduction gear facing away from the scanning assembly; the driving gear and the second reduction gear are fixedly assembled or integrally formed.

[0013] Optionally, the scanner includes a tensioner wheel, which is assembled on the driving component and can move with the movement of the driving component. The guide transmission belt is wound around the tensioner wheel, and the guide transmission belt includes a first outer surface and a second outer surface relative to the first outer surface. The driving gear and the first outer surface are matched for transmission, and the tensioner wheel is against the second outer surface.

[0014] Optionally, the tension wheel comprises a first tension wheel and a second tension wheel, and the first tension wheel and the second tension wheel are respectively located on both sides of the driving gear in the second direction;

[0015] The guide transmission belt includes a first end and a second end opposite to the first end. In a direction extending from the first end to the second end, the guide transmission belt is sequentially wound around the first tension wheel, the driving gear and the second tension wheel.

[0016] Optionally, the first tension wheel and the second tension wheel are symmetrically arranged relative to the driving gear;

[0017] and / or,

[0018] The first tension wheel and the second tension wheel are both staggered with the driving gear in the first direction;

[0019] and / or,

[0020] The driving gear deviates from a line connecting the first end and the second end in the first direction;

[0021] and / or,

[0022] The housing comprises a first side and a second side opposite to the first side in the second direction, the first end is fixed to the first side, and the second end is fixed to the second side;

[0023] and / or,

[0024] The scanner comprises a light-transmitting glass assembled on the housing, the scanning component is movably located below the light-transmitting glass, and the driving component and the guide transmission belt are arranged on a side of the scanning component facing away from the light-transmitting glass.

[0025] Optionally, the scanner includes a guide track extending in the second direction, the guide track is located in the shell, the scanning component is movably connected to the guide track along the guide track, and the distance between the tensioning wheel and the guide track is smaller than the distance between the driving gear and the guide track.

[0026] Optionally, the scanning assembly includes a mounting guide rail frame located in the middle of the scanning assembly in the first direction, the mounting guide rail frame includes a first guide mounting opening and a second guide mounting opening arranged opposite to each other in the second direction, the guide rail includes a guide groove extending in the second direction, and the opening of the guide groove faces the scanning assembly;

[0027] The scanner includes a mainframe arranged in the shell and a wire connected to the mainframe, the wire is located in the guide groove, one end of the wire is connected to the mainframe, and the other end of the wire is respectively connected to the scanning component and the motor.

[0028] Optionally, the wire includes a first wire and a second wire, and the first wire connects the host and the scanning component, and the second wire connects the host and the motor;

[0029] and / or,

[0030] The wire is flat;

[0031] and / or,

[0032] The scanner includes a wire retractor disposed on the shell and a driver connected to the wire retractor. The wire is wound around the wire retractor. The driver operates when the motor rotates, driving the wire retractor to rotate and retract the wire.

[0033] An embodiment of the present application provides a scanner including a shell, a scanning component, a driving component and a guide transmission belt. The guide transmission belt is fixedly arranged on the shell, the driving component is fixedly connected to the scanning component, and the driving component is arranged on the scanning component, which occupies a small space and saves structural space. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Shown is a three-dimensional schematic diagram of a scanner provided by an embodiment of the present application;

[0035] Figure 2 Shown Figure 1 A perspective schematic diagram of the internal structure of the scanner shown at one angle;

[0036] Figure 3 Shown Figure 1A three-dimensional schematic diagram of an embodiment of the internal structure of the scanner from another angle;

[0037] Figure 4 for Figure 3 A partial enlarged view of the internal structure of the scanner shown;

[0038] Figure 5 Shown Figure 1 A three-dimensional schematic diagram of another embodiment of the internal structure of the scanner shown from another angle. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0040] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in this application specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. Words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms of "one", "the term "and / or" used in this application specification and the attached claims refer to and include any or all possible combinations of one or more associated listed items.

[0041] The present application provides a desk lamp. The desk lamp of the present application is described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0042] Figure 1 Shown is a three-dimensional schematic diagram of a scanner provided by an embodiment of the present application.

[0043] like Figure 1As shown, the scanner 10 includes a housing 11, a light-transmitting glass 12, a scanning assembly 13 and a guide rail 14. The housing 11 can accommodate components such as the scanning assembly 13 and the guide rail 14. The light-transmitting glass 12 is assembled to the housing 11, and the light-transmitting glass 12 can place a document 20 to be scanned, and the document 20 to be scanned contains information required to be scanned. The scanning assembly 13 is movably located below the light-transmitting glass 12 and assembled to the housing 11, and extends in a first direction 21. The scanning assembly 13 is movably connected to the guide rail 14 along the guide rail 14, and can scan the document 20 to be scanned. The guide rail 14 is assembled to the housing 11 and extends in a second direction 22. The scanning assembly 13 moves on the guide rail 14 to complete the scanning of the document 20 to be scanned. Among them, the first direction 21 is perpendicular to the second direction 22. In some embodiments, the light-transmitting glass 12, the scanning assembly 13 and the guide rail 14 are respectively arranged in the housing 11.

[0044] Figure 2 Shown Figure 1 The internal structure of the scanner 10 is shown in a three-dimensional schematic diagram at an angle.

[0045] like Figure 2 As shown, the scanner 10 includes a driving assembly 31 and a guide transmission belt 32. The driving assembly 31 is provided at the scanning assembly 13 and provides driving force for the scanning assembly 13. The scanning assembly 13 moves relative to the guide track 14 under the driving force. The guide transmission belt 32 is fixed to the housing 11 and is in transmission connection with the driving assembly 31. The guide transmission belt 32 extends in a second direction 22 perpendicular to the first direction 21. The driving assembly 31 is movably connected to the guide transmission belt 32 along the guide transmission belt 32, and drives the scanning assembly 13 to move relative to the guide transmission belt 32. The guiding direction of the guide transmission belt 32 is consistent with the guiding direction of the guide track 14. The guide transmission belt 32 is fixed and does not move. The guide transmission belt 32 is movably connected to the driving assembly 31. The driving assembly 31 rotates. Since the guide transmission belt 32 is in transmission connection with the driving assembly 31, the driving assembly 31 moves along the guide transmission belt 32 to generate displacement. The scanning assembly follows the driving assembly 31 and translates along the guide transmission belt 32. In this way, the guide transmission belt 32 is fixedly arranged on the shell 11, and the driving component 31 is fixedly connected to the scanning component 13. Compared with the related art in which the transmission belt is fixedly connected to the scanning head and is driven at the same time, the guide transmission belt 32 of the embodiment of the present application is fixed and only a small force is needed to drive the rotation of the driving component 31, which saves effort. In addition, the driving component 31 is arranged on the scanning component 13, has a compact structure, occupies a small space, and saves structural space.

[0046] like Figure 2As shown, the guide transmission belt 32 is an open-loop guide transmission belt, which can reduce the cost of the guide transmission belt 32 and thus save the cost of the scanner 10. The guide transmission belt 32 includes a first end 321 and a second end 322 relative to the first end 321. The first end 321 and the second end 322 of the guide transmission belt 32 are fixed to the housing 11. The guide transmission belt 32 requires a smaller pre-tension to tighten the guide transmission belt 32. One guide transmission belt 32 can reduce the load of the scanner 10. The guide transmission belt 32 can move from the first end 321 to the second end 322, driving the scanning component 13 from one end of the guide track 14 to the other end of the guide track 14. Of course, according to demand, the guide transmission belt 32 can move between the first end 321 and the second end 322, and at the same time, drive the scanning component 13 to move between one end of the guide track 14 and the other end of the guide track 14. In this way, the scanning component 13 can scan the information in the document 20 to be scanned.

[0047] continue Figure 2 As shown, the housing 11 includes a first side 111 and a second side 112 relative to the first side 111 in the second direction 22, the first end 321 is fixed to the first side 111, and the second end 322 is fixed to the second side 112. By arranging the first end 321 and the second end 322 in this way, the guide transmission belt 32 can be better fixed in the housing 11. In some embodiments, the first end 321 and the second end 322 can be fixed to the housing 11 by fasteners, and the fasteners such as bolts are not limited here. In this way, the guide transmission belt 32 can be detachable.

[0048] Combination Figure 1 and Figure 2 As shown, the scanning assembly 13 is movably located below the light-transmitting glass 12, and the driving assembly 31 and the guide transmission belt 32 are arranged on the side of the scanning assembly 13 facing away from the light-transmitting glass 12. The scanning assembly 13 arranged in this way is driven by the driving assembly 31 to move to scan the document 20 to be scanned on the light-transmitting glass 12, so that the information of the document 20 to be scanned can face the scanning assembly 13, and the information of the document 20 to be scanned can be transmitted through the light-transmitting glass 12, so that the scanning assembly 13 can scan the document 20 to be scanned more effectively.

[0049] Figure 3 Shown Figure 1 The internal structure of the scanner 10 is shown in a three-dimensional schematic diagram of an embodiment from another angle. Figure 4 for Figure 3 A partial enlarged view of the internal structure of the scanner 10 is shown.

[0050] like Figure 3 and Figure 4As shown, the driving assembly 31 includes a driving gear 33 connected to the scanning assembly 13, and the driving gear 33 includes a plurality of driving teeth 331 arranged along the circumference of the driving gear 33. The driving gear 33 is rotatably engaged with the guide transmission belt 32, and the driving gear 33 can be driven to rotate, thereby rotatably engaging along the guide transmission belt 32. The guide transmission belt 32 includes a plurality of transmission teeth 3211 arranged on the outer surface of the guide transmission belt 32, and the driving teeth 331 are engaged with the transmission teeth 3211. When the driving gear 33 rotates, the plurality of driving teeth 331 move relative to the plurality of transmission teeth 3211. The driving gear 33 arranged in this way occupies a small area, has a compact structure, and saves space. In addition, the driving teeth 331 of the driving gear 33 are rotatably engaged with the transmission teeth 3211 of the guide transmission belt 32, so that the driving gear 33 and the guide transmission belt 32 can be effectively engaged, thereby improving the transmission efficiency.

[0051] Continue as Figure 3 and Figure 4 As shown, the driving assembly 31 includes a reduction gear 34 and a motor (not shown in the figure), and the motor provides power for the reduction gear 34. The reduction gear 34 is connected to the scanning assembly 13. The reduction gear 34 can reduce the speed of the motor with a faster speed through the transmission of the first reduction gear 341 and the second reduction gear 342, so as to provide a more suitable speed for the driving gear 33. The reduction gear 34 includes a first reduction gear 341 and a second reduction gear 342. The outer diameter of the first reduction gear 341 is smaller than the outer diameter of the second reduction gear 342. The motor is connected to the first reduction gear 341 in a transmission manner, and the rotation of the motor drives the first reduction gear 341 to rotate. The first reduction gear 341 is meshed with the second reduction gear 342, and the rotation of the first reduction gear 341 drives the rotation of the second reduction gear 342. The second reduction gear 342 is connected to the driving gear 33, and the rotation of the second reduction gear 342 drives the driving gear 33 to rotate. By setting the reduction gear 34 in this way, it is possible to avoid using other equipment such as a reduction motor to reduce speed, occupy less space, reduce costs, and the accuracy of gear transmission is higher. At the same time, the reduction gear 34 decelerates, so that the rotation speed of the driving gear 33 is reduced, which improves the stability and controllability of the rotation of the driving gear 33, thereby improving the stability of the movement of the scanning component 13 and making the data scanned by the scanning component 13 clearer.

[0052] In some embodiments, the second reduction gear 342 and the driving gear 33 are axially coaxially fixedly connected, and the driving gear 33 is axially located on the side of the second reduction gear 342 that faces away from the scanning assembly 13; the driving gear 33 and the second reduction gear 342 are fixedly assembled, and the second reduction gear 342 and the driving gear 33 are coaxially fixedly connected. When the second reduction gear 342 rotates, the driving gear 33 can rotate at the same time through the coaxial connection. The driving gear 33 is arranged in this way to facilitate the replacement and maintenance of the driving gear 33. In some embodiments, the driving gear 33 and the second reduction gear 342 are detachably assembled together and connected through the same axis.

[0053] In other embodiments, the second reduction gear 342 and the driving gear 33 are axially coaxially fixedly connected, and the driving gear 33 is axially located on the side of the second reduction gear 342 that faces away from the scanning assembly 13; the driving gear 33 and the second reduction gear 342 are integrally formed, and the driving gear 33 and the second reduction gear 342 are a whole. When the second reduction gear 342 is driven to rotate, it is equivalent to driving the driving gear 33 to rotate at the same time. Such an integrated driving gear 33 and the second reduction gear 342 are convenient for processing and production, and reduce the number of coaxially connected parts, saving the space occupied by the driving assembly 31, and having a compact structure.

[0054] In some embodiments, the driving gear 33 deviates from the line connecting the first end 321 and the second end 322 in the first direction 21. In this way, the driving gear 33 deviates from the first end 321 and the second end 322, thereby increasing the meshing contact surface between the driving gear 33 and the guide transmission belt 32 and improving the effectiveness of the meshing transmission. In some embodiments, the driving gear 33 deviates from the line connecting the first end 321 and the second end 322 in the direction toward the first reduction gear 341 in the first direction 21. In this way, the driving gear 33 can be closer to the line connecting the first end 321 and the second end 322, so that the center of gravity of the scanning assembly 13 is more stable.

[0055] continue Figure 3 and Figure 4 As shown, the scanner 10 includes a tensioning wheel 35, which can tighten the guide transmission belt 32. The tensioning wheel 35 is assembled to the driving assembly 31 and can move with the movement of the driving assembly 31. The guide transmission belt 32 is wound around the tensioning wheel 35. The guide transmission belt 32 includes a first outer surface 323 and a second outer surface 324 relative to the first outer surface 323. The driving gear 33 and the first outer surface 323 are in transmission cooperation, and the tensioning wheel 35 is against the second outer surface 324. The tensioning wheel 35 is arranged in this way to tighten the guide transmission belt 32, increase the tension of the guide transmission belt 32, and is more conducive to the movement of the guide transmission belt 32 along the guide transmission belt 32, so that the guide transmission belt 32 and the driving gear 33 are better meshed and transmitted.

[0056] In some embodiments, the guide transmission belt 32 includes a double-sided toothed synchronous belt. The double-sided toothed synchronous belt includes a first outer surface 323 facing the drive gear 33 and a second outer surface 324 facing the tensioner 35, and the first outer surface 323 is provided with a transmission tooth 3211, and the second outer surface 324 is provided with a transmission tooth 3211. The tensioner 35 includes a plurality of mating teeth (not shown in the figure) arranged along the circumference of the tensioner 35, and the mating teeth are connected with the transmission teeth 3211 of the guide transmission belt 32. The double-sided toothed synchronous belt is arranged in this way, and the meshing of the mating teeth with the transmission teeth 3211 of the guide transmission belt 32, and the meshing of the driving teeth 331 of the drive gear 33 with the transmission teeth 3211 of the guide transmission belt 32, there is no slippage during operation, the transmission is relatively accurate, and the transmission efficiency is high. In addition, the surface of the double-sided toothed synchronous belt is provided with anti-corrosion and anti-wear materials to buffer vibration and reduce noise.

[0057] In some embodiments, the distance between the tensioning wheel 35 and the guide rail 14 is smaller than the distance between the driving gear 33 and the guide rail 14, and the guide rail 14 is closer to the middle position of the scanning component 13 in the first direction 21. The tensioning wheel 35 is arranged in this way, so that the guide transmission belt 32 is closer to the guide rail 14, and the center of gravity is closer to the guide rail 14, thereby improving the stability of the scanning component 13.

[0058] continue Figure 3 and Figure 4 As shown, the scanning component 13 includes a guide rail mounting frame 36 located in the middle of the scanning component 13 in the first direction 21, and the guide rail 14 can be installed. The guide rail mounting frame 36 includes a first guide mounting opening 361 and a second guide mounting opening 362 that are arranged opposite to each other in the second direction 22. The first guide mounting opening 361 and the second guide mounting opening 362 can be penetrated by the guide rail 14, so that the connection of the guide rail 14 is more stable. The guide rail 14 includes a guide groove 141 extending in the second direction 22, and the opening of the guide groove 141 faces the scanning component 13. The scanner 10 includes a host (not shown in the figure) arranged in the housing 11 and a wire 37 connected to the host, the wire 37 is located in the guide groove 141, and the guide groove 141 can accommodate the wire 37 and can also guide the scanning component 13. One end of the wire 37 is connected to the host, and the other end of the wire 37 is respectively connected to the scanning component 13 and the motor. By arranging the wire 37 in the guide groove 141 in this way, the wire 37 can move along the guide groove 141 driven by the scanning component 13 , thereby avoiding interference of the scanning component 13 with the wire 37 and reducing the impact on the scanning component 13 .

[0059] In some embodiments, the guide track 14 may be a U-shaped track, wherein the first guide installation opening 361 and the second guide installation opening 362 are U-shaped openings, respectively, with a simple structure and convenient arrangement.

[0060] In some embodiments, the wire 37 includes a first wire 371 and a second wire 372, and the first wire 371 connects the host and the scanning component 13, and the first wire 371 can transmit the signal between the host and the scanning component 13. The second wire 372 connects the host and the motor, and the second wire 372 can transmit the signal between the host and the motor. The host can be a device that receives the image signal transmitted by the scanning component 13 and sends a control signal to the motor. In this way, the first wire 371 and the second wire 372 are combined to be set as the same wire 37, which reduces the possibility that the first wire 371 and the second wire 372 are set separately and entangled with other components, while reducing the occupied space and facilitating the layout. In addition, the first wire 371 and the second wire 372 that are set as one are arranged in the guide groove 141, which reduces the loss of the first wire 371 and the second wire 372.

[0061] In some embodiments, the wire 37 is flat. The wire 37 is arranged in such a way that the bending toughness of the wire 37 is improved, the height space occupied by the wire 37 is reduced, and the layout is more convenient. Exemplarily, the motor is a flat stepper motor. The flat stepper motor drives the scanning component 13 through the driving component 31. The stepper motor outputs power and transmits the power to the scanning component 13 through the driving component 31 to accurately control the movement of the scanning component 13. This flat stepper motor is small in size and saves installation space.

[0062] In some embodiments, the scanner 10 includes a wire retractor (not shown in the figure) disposed on the housing 11 and a driver (not shown in the figure) connected to the wire retractor. The wire 37 is wound around the wire retractor. The driver operates when the motor rotates, driving the wire retractor to rotate and retract and release the wire 37. In this way, the wire retractor retracts and releases the wire 37, preventing the wire 37 from being entangled with other components, and the line layout is regular and the appearance is neat.

[0063] like Figure 3 and Figure 4 As shown, the tension wheel 35 includes a first tension wheel 351 and a second tension wheel 352, and the first tension wheel 351 and the second tension wheel 352 are respectively located on both sides of the driving gear 33 in the second direction 22. The first tension wheel 351 and the second tension wheel 352 are located on both sides of the driving gear 33, and can tighten the guide transmission belt 32 to both sides away from the driving gear. The guide transmission belt 32 includes a first end 321 and a second end 322 relative to the first end 321. In the direction extending from the first end 321 to the second end 322, the guide transmission belt 32 is sequentially wound around the first tension wheel 351, the driving gear 33 and the second tension wheel 352. The first tension wheel 351 and the second tension wheel 352 are arranged in this way, so that the guide transmission belt 32 can be tightened more effectively, so that the bearing force on the guide transmission belt 32 is more balanced.

[0064] In some embodiments, the first tension wheel 351 and the second tension wheel 352 are symmetrically arranged relative to the driving gear 33. By arranging the first tension wheel 351, the second tension wheel 352 and the driving gear 33 in this way, the driving gear 33 can better transmit with the guide transmission belt 32. At the same time, the guide transmission belt 32 is also equivalent to supporting the driving gear 33. The first tension wheel 351 and the second tension wheel 352 arranged at both ends of the guide transmission belt 32 are more conducive to providing tension to the guide transmission belt 32 in a balanced manner, thereby increasing the tension of the guide transmission belt 32, so that the extension of the guide transmission belt 32 is more conducive to the engagement and stable rotation of the driving gear 33.

[0065] In some embodiments, the first tension wheel 351 and the second tension wheel 352 are staggered with the driving gear 33 in the first direction 21. The first tension wheel 351 and the second tension wheel 352 are staggered in the first direction 21, so that the first tension wheel 351, the second tension wheel 352 and the driving gear 33 are arranged more compactly, occupying a smaller area, and in the process of movement, occupying a small space to avoid collision with other components.

[0066] During the assembly process, there are multiple assembly methods for the double-sided toothed synchronous belt. In the first assembly method, the first end 321 and the second end 322 of the double-sided toothed synchronous belt can be fixed first, and then the double-sided toothed synchronous belt can be tightened in the second direction 22 by the tensioner 35. In the second assembly method, one of the first end 321 and the second end 322 of the double-sided toothed synchronous belt can be fixed first, and then the other of the first end 321 and the second end 322 can be tightened by winding the tensioner 35 to fix it. When the double-sided toothed synchronous belt needs to be replaced, one of the first end 321 and the second end 322 of the double-sided toothed synchronous belt can be removed first, and then the other of the first end 321 and the second end 322 can be removed to complete the removal of the double-sided toothed synchronous belt.

[0067] Figure 5 Shown Figure 1 The internal structure of the scanner 10 is shown in a three-dimensional schematic diagram of another embodiment from another angle.

[0068] like Figure 5 In the embodiment shown, the driving assembly 31 includes a driving gear 33, a reduction gear 34 and a motor (not shown in the figure), the driving gear 33 is connected to the scanning assembly 13, and the driving gear 33, the reduction gear 34 and the motor are respectively connected to the scanning assembly 13. Figure 3 and Figure 4 The specific structure and connection method of the driving gear 33 in the embodiment shown are the same, but in this embodiment, the scanner 10 is not provided with a tensioning wheel 35. In this way, the number of components provided is reduced, the structure volume is reduced, and the driving gear 33 drives the scanning assembly 13 to move with less effort.

[0069] continue Figure 5 As shown, the guide transmission belt 32 faces the first outer surface 323 of the driving gear 33, and the first outer surface 323 is provided with transmission teeth 3211. In this way, a single-sided toothed synchronous belt can be used, and the guide transmission belt 32 can only use the transmission teeth 3211 of the first outer surface 323 for transmission. The single-sided toothed synchronous belt is easy to process, which not only reduces the cost but also has low noise. In this way, a double-sided toothed synchronous belt can be used, and one side of the guide transmission belt 32 is used as the first outer surface 323. When the transmission teeth 3211 on this side are worn, the other side of the double-sided toothed synchronous belt can be turned over to use it as the first outer surface 323. In this way, the reuse rate of the double-sided toothed synchronous belt is improved, and the flexibility of selecting the guide transmission belt 32 is also improved.

[0070] In the assembly method of the single-sided toothed synchronous belt, one of the first end 321 and the second end 322 of the single-sided toothed synchronous belt may be fixed first, and then the other of the first end 321 and the second end 322 may be tightened to fix the belt.

[0071] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A scanner, characterized in that: include: case; A scanning assembly, assembled on the housing and extending in a first direction; A driving component, provided on the scanning component; and A guide transmission belt is fixed to the housing and is in transmission connection with the driving assembly, the guide transmission belt extends in a second direction perpendicular to the first direction, the driving assembly is movably connected to the guide transmission belt along the guide transmission belt, and drives the scanning assembly to move relative to the guide transmission belt; The scanner further comprises: a light-transmitting glass, a guide rail extending in the second direction, and a guide rail mounting frame located in the middle of the scanning component in the first direction; the guide rail mounting frame is mounted in cooperation with the guide rail; wherein the guide rail mounting frame comprises a first guide mounting opening and a second guide mounting opening arranged opposite to each other in the second direction; the guide rail is passed through the first guide mounting opening and the second guide mounting opening; the guide rail comprises a guide groove extending in the second direction, the opening of the guide groove faces the scanning component; The scanner comprises a mainframe arranged in a housing and a wire connected to the mainframe, wherein the wire is located in the guide groove, and the guide groove is used to accommodate the wire and guide the scanning component; one end of the wire is connected to the mainframe, and the other end of the wire is respectively connected to the scanning component and the motor; The guide track is located in the housing; the scanning assembly is movably connected to the guide track along the guide track; The light-transmitting glass is assembled to the shell, the scanning component is movably located below the light-transmitting glass, the driving component and the guide transmission belt are arranged on the side of the scanning component facing away from the light-transmitting glass; the scanning component is clamped below the light-transmitting glass and between the driving component and the side where the guide track is located.

2. The scanner according to claim 1, wherein: The driving assembly includes a driving gear connected to the scanning assembly, and the driving gear includes a plurality of driving teeth arranged along the circumference of the driving gear; The guide transmission belt includes a plurality of transmission teeth arranged on the outer surface of the guide transmission belt, the driving teeth are meshed with the transmission teeth, and when the driving gear rotates, the plurality of driving teeth move relative to the plurality of transmission teeth.

3. The scanner according to claim 2, wherein: The driving assembly includes a reduction gear and a motor, the reduction gear is connected to the scanning assembly, the reduction gear includes a first reduction gear and a second reduction gear; the outer diameter of the first reduction gear is smaller than the outer diameter of the second reduction gear, the motor is transmission-connected to the first reduction gear, the first reduction gear is meshed with the second reduction gear, and the second reduction gear is connected to the driving gear.

4. The scanner according to claim 3, wherein: The second reduction gear and the driving gear are axially coaxially fixedly connected, and the driving gear is axially located on a side of the second reduction gear facing away from the scanning assembly; the driving gear and the second reduction gear are fixedly assembled or integrally formed.

5. The scanner according to claim 3 or 4, characterized in that: The scanner includes a tension wheel, which is assembled on the driving component and can move with the movement of the driving component. The guide transmission belt is wound around the tension wheel. The guide transmission belt includes a first outer surface and a second outer surface relative to the first outer surface. The driving gear and the first outer surface are in transmission cooperation, and the tension wheel is against the second outer surface.

6. The scanner according to claim 5, characterized in that The tension wheel comprises a first tension wheel and a second tension wheel, and the first tension wheel and the second tension wheel are respectively located on both sides of the driving gear in the second direction; The guide transmission belt includes a first end and a second end opposite to the first end. In a direction extending from the first end to the second end, the guide transmission belt is sequentially wound around the first tension wheel, the driving gear and the second tension wheel.

7. The scanner according to claim 6, wherein: The first tension wheel and the second tension wheel are symmetrically arranged relative to the driving gear; and / or, The first tension wheel and the second tension wheel are both staggered with the driving gear in the first direction; and / or, The driving gear deviates from a line connecting the first end and the second end in the first direction; and / or, The housing includes a first side and a second side opposite to the first side in the second direction. The first end is fixed to the first side, and the second end is fixed to the second side.

8. The scanner according to claim 6, wherein: The distance between the tension wheel and the guide track is smaller than the distance between the driving gear and the guide track.

9. The scanner according to claim 1, wherein: The wire is flat.

10. The scanner according to claim 1, wherein: The scanner includes a wire retractor disposed on the shell and a driver connected to the wire retractor. The wire is wound around the wire retractor. The driver operates when the motor rotates, driving the wire retractor to rotate and retract the wire.

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