CN113873093A - Scanner - Google Patents

Abstract

The application provides a scanner, including casing, scanning subassembly, drive assembly and direction drive belt. A scanning assembly assembled to the housing extending in a first direction; the driving component is arranged on the scanning component; and the guide transmission belt is fixed on 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, and the driving component is movably connected to the guide transmission belt along the guide transmission belt and drives the scanning component to move relative to the guide transmission belt. The scanner occupies a small space and saves structural space.

Description

Scanner

Technical Field

The application relates to the field of scanning, in particular to a scanner.

Background

The scanner is an optical image scanning device. The scanner comprises a scanning head and a guide track, wherein the scanning head finishes a scanning stroke along the guide track when executing a task, so that information of a file to be scanned is converted into a computer graphic file.

In the related art, the scanner further includes a transmission mechanism including a motor and a transmission belt connected to the motor, which are respectively disposed 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 rotate simultaneously. The transmission mechanism arranged in this way occupies a large space.

Disclosure of Invention

The application provides a scanner, includes:

a housing;

the scanning assembly is assembled on the shell and extends in a first direction;

the driving component is arranged on the scanning component; and

and the guide transmission belt is fixed on 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, and the driving component is movably connected to the guide transmission belt along the guide transmission belt and drives the scanning component to move relative to the guide transmission belt.

Optionally, the driving assembly comprises a driving gear connected with the scanning assembly, and the driving gear comprises a plurality of driving teeth arranged along the circumferential direction of the driving gear;

the guide transmission belt comprises a plurality of transmission teeth arranged on the outer surface of the guide transmission belt, the driving teeth are meshed with the transmission teeth, the driving gear rotates, and the plurality of driving teeth move relative to the plurality of transmission teeth.

Optionally, the driving assembly includes a reduction gear and a motor, the reduction gear is connected to the scanning assembly, and the reduction gear includes a first reduction gear and a second reduction gear; the outer diameter of the first reduction gear is smaller than that of the second reduction gear, the motor is in transmission connection with the first reduction gear, the first reduction gear is meshed with the second reduction gear, and the second reduction gear is connected with the driving gear.

Optionally, the second reduction gear and the driving gear are axially and coaxially fixedly connected, and the driving gear is axially located on one side of the second reduction gear, which faces away from the scanning assembly; the driving gear and the second reduction gear are fixedly assembled or integrally formed.

Optionally, the scanner includes a tension wheel assembled to the driving assembly and movable with the driving assembly, the guide belt is wound around the tension wheel, the guide belt includes a first outer surface and a second outer surface opposite to the first outer surface, the driving gear is in transmission fit with the first outer surface, and the tension wheel abuts against the second outer surface.

Optionally, the tension wheel includes a first tension wheel and a second tension wheel, and the first tension wheel and the second tension wheel are respectively located at two sides of the driving gear in the second direction;

the guide transmission belt comprises a first end and a second end opposite to the first end, and the guide transmission belt sequentially winds the first tension wheel, the driving gear and the second tension wheel in the direction from the first end to the second end.

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

and/or the presence of a gas in the gas,

the first tensioning wheel and the second tensioning wheel are staggered with the driving gear in the first direction;

and/or the presence of a gas in the gas,

the drive gear is offset from a line connecting the first end and the second end in the first direction;

and/or the presence of a gas in the gas,

the shell comprises a first side and a second side opposite to the first side in the second direction, the first end is fixed on the first side, and the second end is fixed on the second side;

and/or the presence of a gas in the gas,

the scanner comprises light-transmitting glass assembled on the shell, the scanning assembly is movably positioned below the light-transmitting glass, and the driving assembly and the guide transmission belt are arranged on one side, back to the light-transmitting glass, of the scanning assembly.

Optionally, the scanner includes a guide rail extending in the second direction, the guide rail is located in the housing, the scanning assembly is movably connected to the guide rail along the guide rail, and a distance between the tension wheel and the guide rail is smaller than a distance between the driving gear and the guide rail.

Optionally, the scanning assembly includes a mounting rail bracket located at a middle position of the scanning assembly in the first direction, the mounting rail bracket includes a first guide mounting opening and a second guide mounting opening which are oppositely arranged in the second direction, the guide rail includes a guide groove extending in the second direction, and an opening of the guide groove faces the scanning assembly;

the scanner is including locating host computer in the casing and with the wire that the host computer is connected, the wire is located in the direction recess, the one end of wire with the host computer is connected, the other end of wire respectively with scanning subassembly reaches the motor is connected.

Optionally, the wires include a first wire and a second wire, the first wire connects the host and the scanning assembly, and the second wire connects the host and the motor;

and/or the presence of a gas in the gas,

the lead is flat;

and/or the presence of a gas in the gas,

the scanner comprises a lead winder arranged on the shell and a driver connected with the lead winder, the lead is wound on the lead winder, and the driver operates when the motor rotates to drive the lead winder to rotate and retract the lead.

The embodiment of the application provides a scanner includes casing, scanning subassembly, drive assembly and direction drive belt, and the direction drive belt is fixed to be set up in the casing, drive assembly and scanning subassembly fixed connection, and drive assembly sets up on the scanning subassembly, and occupation space is little, saves structural space.

Drawings

FIG. 1 is a perspective view of a scanner provided in one embodiment of the present application;

FIG. 2 is a perspective view of an angle of the internal structure of the scanner shown in FIG. 1;

FIG. 3 is a perspective view of an embodiment of another angle of the internal structure of the scanner shown in FIG. 1;

FIG. 4 is a partial enlarged view of the internal structure of the scanner shown in FIG. 3;

fig. 5 is a perspective view of another embodiment of another angle of the internal structure of the scanner shown in fig. 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and/or "the" as used herein mean and include any and all possible combinations of one or more of the associated listed items.

The application provides a desk lamp. The following describes the table lamp of the present application in detail with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.

Fig. 1 is a perspective view of a scanner according to an embodiment of the present application.

As shown in fig. 1, the scanner 10 includes a housing 11, a transparent glass 12, a scanning assembly 13, and a guide rail 14. The housing 11 can house components such as the scanning assembly 13 and the guide rail 14. The transparent glass 12 is assembled in the housing 11, the document 20 to be scanned can be placed on the transparent glass 12, and the document 20 to be scanned contains information required to be scanned. The scanning assembly 13 is movably disposed under the transparent glass 12 and assembled to the housing 11, and extends in the first direction 21, and 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 the second direction 22, and the scanning assembly 13 moves on the guide rail 14 to complete scanning of the document 20 to be scanned. Wherein the first direction 21 is perpendicular to the second direction 22. In some embodiments, the transparent glass 12, the scanning assembly 13 and the guide rail 14 are disposed in the housing 11 respectively.

Fig. 2 is a perspective view of an angle of the internal structure of the scanner 10 shown in fig. 1.

As shown in fig. 2, the scanner 10 includes a drive assembly 31 and a guide belt 32. The driving assembly 31 is disposed on the scanning assembly 13 and provides a driving force for the scanning assembly 13, and the scanning assembly 13 moves relative to the guide rail 14 under the driving of the driving force. A guide belt 32 is fixed to the housing 11 and is in driving connection with the drive assembly 31, the guide belt 32 extending in the second direction 22 perpendicular to the first direction 21, the drive assembly 31 being movably connected to the guide belt 32 along the guide belt 32, the drive scanning assembly 13 being movable relative to the guide belt 32. Wherein, the direction of direction drive belt 32 is unanimous with the direction of guide track 14, and direction drive belt 32 is fixed motionless, and direction drive belt 32 and drive assembly 31 swing joint, drive assembly 31 rotate, because direction drive belt 32 is connected with drive assembly 31 transmission, consequently drive assembly 31 can remove along direction drive belt 32, produces the displacement, and scanning assembly follows drive assembly 31 and follows drive assembly 32 translation along direction drive belt. So set up direction drive belt 32 and fix and set up in casing 11, drive assembly 31 and scanning subassembly 13 fixed connection, compare in the drive belt among the correlation technique and scanning head fixed connection and by the simultaneous drive, the direction drive belt 32 of this application embodiment is fixed motionless, only needs less power, can drive assembly 31's rotation, and is laborsaving, and drive assembly 31 sets up on scanning subassembly 13, compact structure, and occupation space is little, saves structure space.

As shown in fig. 2, the guide belt 32 is an open loop guide belt, which reduces the cost of the guide belt 32 and thus saves the cost of the scanner 10. The guide belt 32 includes a first end 321 and a second end 322 opposite the first end 321. The first end 321 and the second end 322 of the guide belt 32 are fixed to the housing 11, and the guide belt 32 needs a small pretension force to tension the guide belt 32, so that the load of the scanner 10 can be reduced by one guide belt 32. The guide belt 32 can move from the first end 321 to the second end 322, and move the scanning assembly 13 from one end of the guide rail 14 to the other end of the guide rail 14. Of course, the guide belt 32 can move between the first end 321 and the second end 322, and at the same time, the scanning assembly 13 can move between one end of the guide rail 14 and the other end of the guide rail 14. In this manner, the scanning assembly 13 can scan information in the document 20 to be scanned.

Continuing with fig. 2, the housing 11 includes a first side 111 and a second side 112 opposite 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 providing the first end 321 and the second end 322 in this manner, the guide belt 32 can be better secured within the housing 11. In some embodiments, the first end 321 and the second end 322 may be fixed to the housing 11 by fasteners, such as bolts, but not limited thereto. So configured, the guide belt 32 can be removed.

As shown in fig. 1 and fig. 2, the scanning assembly 13 is movably disposed below the transparent glass 12, and the driving assembly 31 and the guiding belt 32 are disposed on a side of the scanning assembly 13 opposite to the transparent glass 12. The scanning assembly 13 is driven by the driving assembly 31 to move to scan the document 20 to be scanned on the transparent glass 12, so that the information of the document 20 to be scanned can face the scanning assembly 13, and the document 20 to be scanned can be scanned more effectively by the scanning assembly 13 through the information of the document 20 to be scanned which is transmitted through the transparent glass 12.

Fig. 3 is a perspective view of an embodiment of another angle of the internal structure of the scanner 10 shown in fig. 1. Fig. 4 is a partially enlarged view of the internal structure of the scanner 10 shown in fig. 3.

As shown in fig. 3 and 4, 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 disposed along a circumferential direction of the driving gear 33. The drive gear 33 is rotatably engaged with the guide belt 32, and the drive gear 33 can be driven to rotate so as to be rotatably engaged along the guide belt 32. The guide belt 32 includes a plurality of drive teeth 3211 disposed on an outer surface of the guide belt 32, the drive teeth 331 are engaged with the drive teeth 3211, the drive gear 33 rotates, and the plurality of drive teeth 331 move relative to the plurality of drive teeth 3211. The driving gear 33 arranged in this way has small space occupation area, compact structure and space saving, and the driving teeth 331 of the driving gear 33 are rotatably meshed 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 meshed, and the transmission efficiency is improved.

As further shown in fig. 3 and 4, the driving assembly 31 includes a reduction gear 34 and a motor (not shown) that powers the reduction gear 34. The reduction gear 34 is connected to the scanning assembly 13. The reduction gear 34 can reduce the rotation speed of the motor with a higher rotation speed through the transmission of the first reduction gear 341 and the second reduction gear 342, so as to provide a more appropriate 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 in transmission connection with the first reduction gear 341, and the motor rotates to drive the first reduction gear 341 to rotate. The first reduction gear 341 is engaged with the second reduction gear 342, and the first reduction gear 341 rotates to drive the second reduction gear 342 to rotate. 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. So set up reduction gear 34, can avoid using other equipment such as gear motor to slow down, occupation space is little, reduce cost to gear drive's accuracy is higher. Meanwhile, the reduction gear 34 reduces the speed, so that the rotation speed of the driving gear 33 is reduced, and the stability and controllability of the rotation of the driving gear 33 are improved, thereby improving the stability of the movement of the scanning assembly 13 and enabling the data scanned by the scanning assembly 13 to be clearer.

In some embodiments, the second reduction gear 342 and the driving gear 33 are axially and coaxially fixedly connected, and the driving gear 33 is axially located at a side of the second reduction gear 342 facing 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 and fixedly connected, and when the second reduction gear 342 rotates, the driving gear 33 can simultaneously rotate through the coaxial connection. The drive gear 33 is thus provided to facilitate replacement and maintenance of the drive gear 33. In some embodiments, the driving gear 33 and the second reduction gear 342 are removably assembled together, connected by the same shaft.

In other embodiments, the second reduction gear 342 and the driving gear 33 are axially and coaxially fixedly connected, and the driving gear 33 is axially located at a side of the second reduction gear 342 facing 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 integrated, so that when the second reduction gear 342 is driven to rotate, the driving gear 33 is driven to rotate at the same time. The integrated driving gear 33 and the second reduction gear 342 are arranged, so that the processing and the production are convenient, the parts which are coaxially connected are reduced, the space occupied by the driving assembly 31 is saved, and the structure is compact.

In some embodiments, the drive gear 33 is offset from a line connecting the first end 321 and the second end 322 in the first direction 21. The drive gear 33 is offset from the first end 321 and the second end 322, so that the meshing contact surface of the drive gear 33 and the guide transmission belt 32 is increased, and the meshing transmission effectiveness is improved. In some embodiments, the drive gear 33 is offset from a line connecting the first end 321 and the second end 322 in a direction toward the first reduction gear 341 in the first direction 21. This may allow drive gear 33 to be closer to the line connecting first end 321 and second end 322, making the center of gravity of scanning assembly 13 more stable.

Continuing with fig. 3 and 4, the scanner 10 includes a tension roller 35 that can tension the guide belt 32. The tension wheel 35 is assembled to the driving assembly 31 and can move along with the movement of the driving assembly 31, the guiding belt 32 is wound around the tension wheel 35, the guiding belt 32 includes a first outer surface 323 and a second outer surface 324 opposite to the first outer surface 323, the driving gear 33 is in driving fit with the first outer surface 323, and the tension wheel 35 abuts against the second outer surface 324. So set up tight pulley 35 and can rise tight direction drive belt 32, improve the tension of direction drive belt 32, more be favorable to direction drive belt 32 to remove along direction drive belt 32 for the better meshing transmission of direction drive belt 32 and drive gear 33.

In some embodiments, the guide belt 32 comprises a double-toothed timing belt. The double-sided toothed synchronous belt comprises a first outer surface 323 facing the driving gear 33 and a second outer surface 324 facing the tension pulley 35, wherein the first outer surface 323 is provided with driving teeth 3211, and the second outer surface 324 is provided with driving teeth 3211. The tension roller 35 includes a plurality of engaging teeth (not shown) disposed along a circumferential direction of the tension roller 35, and the engaging teeth are connected to the driving teeth 3211 of the guiding belt 32. So set up the double faced tooth hold-in range, and the meshing of the driving tooth 3211 of cooperation tooth and direction drive belt 32 to and the driving tooth 331 of drive gear 33 and the meshing of the driving tooth 3211 of direction drive belt 32, no slip at the during operation, the transmission is more accurate, and transmission efficiency is high. And moreover, the surface of the double-sided tooth synchronous belt is provided with an anticorrosive wear-resistant material, so that the double-sided tooth synchronous belt can buffer, absorb vibration and reduce noise.

In some embodiments, the distance between the tension wheel 35 and the guide rail 14 is smaller than the distance between the driving gear 33 and the guide rail 14, the guide rail 14 is closer to the middle of the scanning assembly 13 in the first direction 21, and the tension wheel 35 is disposed such that the guide 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 assembly 13.

Continuing with fig. 3 and 4, the scan assembly 13 includes a mounting rail bracket 36 located at a central position of the scan assembly 13 in the first direction 21, to which the guide rail 14 can be mounted. The mounting rail bracket 36 includes a first guide mounting opening 361 and a second guide mounting opening 362 disposed opposite to each other in the second direction 22. The first guide mounting opening 361 and the second guide mounting opening 362 can penetrate through 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 guide groove 141 opens toward the scan assembly 13. The scanner 10 includes a host (not shown) disposed in the housing 11 and a wire 37 connected to the host, wherein the wire 37 is disposed in the guiding recess 141, and the guiding recess 141 can accommodate the wire 37 and also can guide the scanning assembly 13. One end of the wire 37 is connected to the host, and the other end of the wire 37 is connected to the scanning assembly 13 and the motor, respectively. The conducting wire 37 is arranged in the guide groove 141, and the conducting wire 37 can move along the guide groove 141 under the driving of the scanning component 13, so that the interference of the scanning component 13 on the conducting wire 37 is avoided, and the influence on the scanning component 13 is also reduced.

In some embodiments, the guide track 14 may be a U-shaped track. Wherein, first direction installing port 361 and second direction installing port 362 are U type opening respectively, simple structure, the convenient arrangement.

In some embodiments, the conductive lines 37 include a first conductive line 371 and a second conductive line 372, and the first conductive line 371 connects the host and the scan element 13, and the first conductive line 371 can transmit signals between the host and the scan element 13. The second wire 372 connects the host and the motor, and the second wire 372 may transmit signals between the host and the motor. The host computer may be a device that receives image signals transmitted by the scanning assembly 13 and sends control signals to the motor. The first conductive line 371 and the second conductive line 372 are combined to form the same conductive line 37, so that the possibility that the first conductive line 371 and the second conductive line 372 are wound around other parts due to the arrangement of the first conductive line 371 and the second conductive line 372 is reduced, the occupied space is reduced, the layout is convenient, and the first conductive line 371 and the second conductive line 372 which are integrally arranged are arranged in the guide groove 141, so that the loss of the first conductive line 371 and the second conductive line 372 is reduced.

In some embodiments, the wires 37 are flat, so that the arrangement of the wires 37 improves the flexibility of bending of the wires 37, reduces the height space occupied by the wires 37, and facilitates layout. Illustratively, the motor is a flat stepper motor. The flat stepper motor drives the scanning assembly 13 through the driving assembly 31, the stepper motor outputs power, and the power is transmitted to the scanning assembly 13 through the driving assembly 31, so that the motion of the scanning assembly 13 is accurately controlled. The flat stepping motor is small in size and saves installation space.

In some embodiments, the scanner 10 includes a wire winder (not shown) disposed on the housing 11 and a driver (not shown) connected to the wire winder, the wire 37 is wound around the wire winder, and the driver operates when the motor rotates to drive the wire winder to rotate, thereby winding and unwinding the wire 37. The wire 37 is collected and released by the wire winder, the wire 37 is prevented from being wound on other parts, the circuit layout is regular, and the appearance is neat.

As shown in fig. 3 and 4, 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 at two sides of the driving gear 33 in the second direction 22. The first tension wheel 351 and the second tension wheel 352 are disposed at two sides of the driving gear 33, and can tension the guiding transmission belt 32 towards two sides far away from the driving gear. The guiding belt 32 includes a first end 321 and a second end 322 opposite to the first end 321, and the guiding belt 32 sequentially winds around the first tension wheel 351, the driving gear 33 and the second tension wheel 352 in a direction extending from the first end 321 to the second end 322. 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 tensioned more effectively, and the bearing capacity of the guide transmission belt 32 is more balanced.

In some embodiments, the first tension wheel 351 and the second tension wheel 352 are symmetrically disposed with respect to the driving gear 33. So set up first tight pulley 351, second tight pulley 352 and drive gear 33 that rises, drive gear 33 can be better with the transmission of direction drive belt 32, simultaneously, direction drive belt 32 has also been equivalent to and has supported drive gear 33, and at the first tight pulley 351 and the second tight pulley 352 that rises that direction drive belt 32 both ends set up, more be favorable to providing the tension for direction drive belt 32 in equilibrium, and then improve the tension of direction drive belt 32, make the extension of direction drive belt 32, more be favorable to drive gear 33 meshing and steady rotation.

In some embodiments, the first tension wheel 351 and the second tension wheel 352 are both offset from the drive gear 33 in the first direction 21. The first tension wheel 351 and the second tension wheel 352 are arranged in the first direction 21 in a staggered mode, so that the first tension wheel 351, the second tension wheel 352 and the driving gear 33 are more compact, the occupied area is smaller, the occupied space is small in the moving process, and collision with other parts is avoided.

During the assembly process, various assembly modes can exist in the double-sided tooth synchronous belt. In the first assembly method, the first end 321 and the second end 322 of the double-sided toothed timing belt may be fixed, and then the double-sided toothed timing belt may be tensioned in the second direction 22 by the tensioning wheel 35. In a second assembly method, one of the first end 321 and the second end 322 of the double-sided toothed timing belt may be fixed, and then the other of the first end 321 and the second end 322 may be tightened around the tension roller 35. When the double-sided tooth synchronous belt needs to be replaced, one of the first end 321 and the second end 322 of the double-sided tooth synchronous belt can be detached first, and then the other one of the first end 321 and the second end 322 can be detached, so as to complete the detachment of the double-sided tooth synchronous belt.

Fig. 5 is a perspective view of another embodiment of another angle of the internal structure of the scanner 10 shown in fig. 1.

In the embodiment shown in fig. 5, the driving assembly 31 includes a driving gear 33, a reduction gear 34 and a motor (not shown), the driving gear 33 is connected to the scanning assembly 13, the driving gear 33, the reduction gear 34 and the motor are respectively the same as the driving gear 33 in the embodiments shown in fig. 3 and 4 in the specific structure and connection manner, but in this embodiment, the scanner 10 is not provided with the tension wheel 35. Therefore, the number of the arranged parts is reduced, the structure volume is reduced, and the driving gear 33 is more labor-saving when driving the scanning assembly 13 to move.

Continuing with FIG. 5, the guide belt 32 faces the first outer surface 323 of the drive gear 33, and the first outer surface 323 is provided with gear teeth 3211. So can use the single face tooth hold-in range, the direction drive belt 32 can only use the driving tooth 3211 of first surface 323 with the transmission, and single face tooth hold-in range facilitates the processing, not only reduces the cost, and the noise is less moreover. So can use the double-sided tooth hold-in range, with direction drive belt 32 one side, as first surface 323, when the driving tooth 3211 on this face has wearing and tearing, can overturn the another side of double-sided tooth hold-in range, as first surface 323, so improve the reuse rate of double-sided tooth hold-in range, also improve the flexibility that direction drive belt 32 selected.

In the assembly of the single-sided tooth timing belt, one of the first end 321 and the second end 322 of the single-sided tooth timing belt may be fixed, and then the other of the first end 321 and the second end 322 may be pulled to fix the single-sided tooth timing belt.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. A scanner, comprising:

a housing;

the scanning assembly is assembled on the shell and extends in a first direction;

the driving component is arranged on the scanning component; and

and the guide transmission belt is fixed on 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, and the driving component is movably connected to the guide transmission belt along the guide transmission belt and drives the scanning component to move relative to the guide transmission belt.

2. The scanner of claim 1, wherein the drive assembly comprises a drive gear coupled to the scanning assembly, the drive gear including a plurality of drive teeth disposed along a circumference of the drive gear;

the guide transmission belt comprises a plurality of transmission teeth arranged on the outer surface of the guide transmission belt, the driving teeth are meshed with the transmission teeth, the driving gear rotates, and the plurality of driving teeth move relative to the plurality of transmission teeth.

3. The scanner of claim 2, wherein the drive assembly includes a reduction gear and a motor, the reduction gear being coupled to the scanning assembly, the reduction gear including a first reduction gear and a second reduction gear; the outer diameter of the first reduction gear is smaller than that of the second reduction gear, the motor is in transmission connection with the first reduction gear, the first reduction gear is meshed with the second reduction gear, and the second reduction gear is connected with the driving gear.

4. The scanner of claim 3, wherein the second reduction gear and the drive gear are fixedly connected axially and coaxially, the drive gear being located axially 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, wherein the scanner comprises a tension roller assembled to the driving member and movable with the driving member, the guiding belt is wound around the tension roller, the guiding belt comprises a first outer surface and a second outer surface opposite to the first outer surface, the driving gear is in driving engagement with the first outer surface, and the tension roller abuts against the second outer surface.

6. The scanner of claim 5, wherein the tension wheel comprises a first tension wheel and a second tension wheel, the first tension wheel and the second tension wheel are respectively located at two sides of the driving gear in the second direction;

the guide transmission belt comprises a first end and a second end opposite to the first end, and the guide transmission belt sequentially winds the first tension wheel, the driving gear and the second tension wheel in the direction from the first end to the second end.

7. The scanner of claim 6, wherein the first tension wheel and the second tension wheel are symmetrically disposed with respect to the drive gear;

and/or the presence of a gas in the gas,

the first tensioning wheel and the second tensioning wheel are staggered with the driving gear in the first direction;

and/or the presence of a gas in the gas,

the drive gear is offset from a line connecting the first end and the second end in the first direction;

and/or the presence of a gas in the gas,

the shell comprises a first side and a second side opposite to the first side in the second direction, the first end is fixed on the first side, and the second end is fixed on the second side;

and/or the presence of a gas in the gas,

the scanner comprises light-transmitting glass assembled on the shell, the scanning assembly is movably positioned below the light-transmitting glass, and the driving assembly and the guide transmission belt are arranged on one side, back to the light-transmitting glass, of the scanning assembly.

8. The scanner of claim 6, comprising a guide rail extending in the second direction, the guide rail being located within the housing, the scanning assembly being movably coupled to the guide rail along the guide rail, the tension wheel being spaced from the guide rail by a distance less than a distance between the drive gear and the guide rail.

9. The scanner of claim 8, wherein the scan assembly includes a mounting rail bracket located at a central position of the scan assembly in the first direction, the mounting rail bracket including a first guide mounting opening and a second guide mounting opening oppositely disposed in the second direction, the guide rail including a guide groove extending in the second direction, the guide groove opening toward the scan assembly;

the scanner is including locating host computer in the casing and with the wire that the host computer is connected, the wire is located in the direction recess, the one end of wire with the host computer is connected, the other end of wire respectively with scanning subassembly reaches the motor is connected.

10. The scanner of claim 9, wherein the wires comprise a first wire and a second wire, and the first wire connects the host computer and the scanning assembly, and the second wire connects the host computer and the motor;

and/or the presence of a gas in the gas,

the lead is flat;

and/or the presence of a gas in the gas,

the scanner comprises a lead winder arranged on the shell and a driver connected with the lead winder, the lead is wound on the lead winder, and the driver operates when the motor rotates to drive the lead winder to rotate and retract the lead.

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