Scanner

Abstract

The invention belongs to the technical field of slice scanning equipment, and discloses a scanner which comprises a machine body, a circuit board, a medium supply assembly and a cooling plate, the medium supply assembly is arranged on the outer side of the machine body and connected with external refrigeration equipment, and the circuit board and the cooling plate are arranged in an inner cavity of the machine body. The side, in the thickness direction, of the cooling plate is used for being bonded with a circuit board through heat conduction glue, a cooling flow channel for circulation of a cooling medium is formed in the cooling plate, the two ends of the cooling flow channel are provided with a medium inlet and a medium outlet which are communicated with the outside of the machine body respectively, and the medium inlet and / or the medium outlet are / is connected with a medium supply assembly. According to the scanner, effective cooling and heat dissipation can be realized under the condition that the interior of the scanner is closed.

Description

Technical Field

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

[0002] A pathology slide scanner is a medical device that converts traditional glass slides into digital pathology slides using high-resolution digital imaging technology. In practice, to protect pathology slides from external environmental influences during scanning, a closed scanner body is typically used, with the slides placed in a chamber within the scanner body for scanning. This results in the scanner's circuit board, various drive structures, scanning lens, and connecting circuits being largely integrated within the body. However, during operation, these components, particularly those on the circuit board, contain numerous heating elements. These heating elements heat the air within the chamber, causing the temperature to rise, which in turn affects the pathology slides and the overall scanning results.

[0003] In order to ensure the closedness of the body, the design of opening air vents on the side wall of the body for cooling cannot be implemented. In the existing technology, the overall liquid cooling method or the external fan blowing air to the hot parts of the body to dissipate heat is usually adopted. The overall liquid cooling design requires a lot of equipment to match, the installation is complicated and the cost is high. The heat dissipation efficiency of the external fan blowing heat dissipation method is low and effective cooling cannot be achieved. Summary of the Invention

[0004] The object of the present invention is to provide a scanner that can achieve effective cooling and heat dissipation while ensuring that the interior of the scanner is sealed.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A scanner is provided, comprising a body, a circuit board, a medium supply assembly, and a cooling plate. The medium supply assembly is arranged on the outside of the body and connected to an external refrigeration device. The circuit board and the cooling plate are arranged in the inner cavity of the body. One side of the cooling plate along its thickness direction is used for bonding to the circuit board by means of a thermally conductive adhesive. A cooling flow channel for circulating a cooling medium is provided in the cooling plate. A medium inlet and a medium outlet connected to the outside of the body are respectively provided at both ends of the cooling flow channel. The medium inlet and / or the medium outlet are connected to the medium supply assembly.

[0007] In one embodiment, a guide layer is provided at one end of the cooling plate facing away from the circuit board, an air flow channel is provided in the guide layer, and an air inlet and an air outlet connected to the inner cavity of the scanner are respectively provided at both ends of the air flow channel.

[0008] In one embodiment, a guide fan is further provided on the cooling plate, and the guide fan is arranged at the air inlet and / or the air outlet.

[0009] In one embodiment, the flow path of the air flow channel gradually increases along the direction from the air inlet to the air outlet.

[0010] In one embodiment, the medium supply assembly includes a cooling fan, and the cooling fan is disposed at the medium inlet and / or the medium outlet.

[0011] In one embodiment, the medium supply assembly includes a liquid cooling water tank, and the liquid cooling water tank includes a water outlet connected to the medium inlet and a water return end connected to the medium outlet.

[0012] In one embodiment, the scanner further includes a feeding assembly, the feeding assembly including a driving structure and a tray rack for placing a tray, the driving structure being in transmission connection with the tray rack to drive the tray rack to rise and fall;

[0013] A feed bin door is provided on one side wall of the machine body adjacent to the pallet rack, and a scanning platform and a limit baffle are also provided in the machine body. The limit baffle is provided on the side of the pallet rack facing away from the feed bin door, and the limit baffle is provided between the scanning platform and the pallet rack, and a feed port is provided on the limit baffle which passes through the limit baffle along its thickness direction, and a first chamfered surface is provided on the upper edge and the lower edge of the feed port facing the pallet rack, and a second chamfered surface is provided on the end of the pallet facing the feed port.

[0014] In one embodiment, a limit sensor for sensing the pallet is provided on a side of the limit baffle facing away from the pallet rack.

[0015] In one embodiment, the tray includes a main body, which is provided with a plurality of placement slots for placing pathological slices. The main body is also provided with a clamping assembly, which includes a driving member, a transmission rod and a clamping block. The clamping block has a first position and a second position. When the clamping block is in the first position, the clamping block is at least partially located above the placement slot and within the horizontal projection range of the pathological slice. When the clamping block is in the second position, the clamping block is outside the horizontal projection range of the pathological slice. The driving member is connected to the clamping block through the transmission rod to drive the clamping block to move between the first position and the second position.

[0016] In one embodiment, the driving member includes a cam and a return spring, the cam is in transmission connection with the transmission rod and drives the transmission rod to move along its axis, so as to drive the clamping block to move between the first position and the second position;

[0017] The return spring is connected to the clamping block and / or the transmission rod and has a tendency to move the clamping block toward the first position.

[0018] Beneficial effects of the present invention:

[0019] The present invention provides a cooling mechanism comprising a medium supply assembly disposed outside a scanner and a cooling plate disposed within the scanner's interior. The medium supply assembly communicates with a cooling channel within the cooling plate, allowing cooling medium to be introduced into the cooling channel. The cooling plate then exchanges heat with a circuit board bonded to the cooling plate, thereby cooling and dissipating heat from the circuit board. By providing a closed cooling channel within the cooling plate, the circuit board within the scanner can be effectively cooled and dissipated while ensuring the scanner's tightness. This reduces overheating of heating elements on the circuit board and reduces heating of the air within the scanner's interior when the heating elements are heated, thereby preventing the scanner's interior from overheating and potentially affecting the scanning results of pathological sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a top view of the cooling mechanism in Example 1;

[0021] Figure 2 This is a front view of the cooling plate in Example 1;

[0022] Figure 3 This is a left side view of the cooling plate in Example 1;

[0023] Figure 4 yes Figure 3 A magnified cross-sectional view of the structure of the middle part A;

[0024] Figure 5 It is a schematic structural diagram of the cooling channel in Example 1;

[0025] Figure 6 Schematic diagram of the structure of the air flow channel in Example 1;

[0026] Figure 7 It is a schematic diagram of a part of the structure of the scanner in the first embodiment;

[0027] Figure 8 is a schematic structural diagram of the scanner in another perspective in the first embodiment;

[0028] Figure 9 Schematic diagram of the structure of the feed assembly in Example 1;

[0029] Figure 10 This is a partial structural diagram of the limit baffle and the tray in Example 1;

[0030] Figure 11 is a top view of the tray in Example 1;

[0031] Figure 12 1 is a schematic structural diagram of the clamping assembly in Example 1;

[0032] Figure 13 It is a top view of the cooling mechanism in the second embodiment.

[0033] In the picture:

[0034] 1. Machine body; 11. Inner cavity; 12. Feeding chamber door; 2. Circuit board; 21. Heating element; 3. Thermal adhesive; 4. Feeding assembly; 41. Driving structure; 4101. Fixing bracket; 4102. Driving motor; 4103. Transmission shaft; 4104. Connecting piece; 42. Tray; 4201. Second chamfered surface; 4202. Main body; 4203. Placement slot; 43. Tray rack; 5. Pathology section; 6. Scanning platform; 7. Limit baffle; 71. Feeding port; 72. First chamfered surface; 73. Third chamfered surface; 74. Limit sensor; 8. Clamping assembly; 81. Driving piece; 8101. Cam; 8102. Return spring; 82. Transmission rod; 83. Clamping block;

[0035] 110. Cooling fan; 120. Liquid cooling water tank; 121. Water outlet; 122. Water return; 200. Cooling plate; 210. Cooling channel; 211. Medium inlet; 212. Medium outlet; 220. Guide layer; 221. Air channel; 222. Air inlet; 223. Air outlet; 230. Guide fan. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0037] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0040] Example 1

[0041] like Figures 1 to 12 As shown, a scanner of this embodiment includes a body 1, a circuit board 2, a medium supply assembly, and a cooling plate 200. The medium supply assembly is arranged on the outside of the body 1 and connected to an external refrigeration device. The circuit board 2 and the cooling plate 200 are arranged in the inner cavity 11 of the body 1. One side of the cooling plate 200 along the thickness direction is used to bond with the circuit board 2 arranged in the inner cavity 11 through a thermal conductive adhesive 3. A cooling channel 210 for circulating a cooling medium is provided in the cooling plate 200. A medium inlet 211 and a medium outlet 212 connected to the outside of the body 1 are respectively provided at both ends of the cooling channel 210. The medium inlet 211 and / or the medium outlet 212 are connected to the medium supply assembly.

[0042] In this embodiment, a medium supply assembly is disposed outside the housing 1 and connected to an external refrigeration device, so that a cooling medium is fed into the cooling channel 210 of a cooling plate 200 disposed in the inner cavity 11 of the housing 1. Heat is then exchanged between the cooling plate 200 and the circuit board 2 bonded thereto, thereby achieving cooling and heat dissipation of the circuit board 2. A cooling medium circulation channel, isolated from the inner cavity 11, is formed between the medium supply assembly and the cooling plate 200. This effectively cools and dissipates heat from the circuit board 2 within the housing 1 while ensuring the sealing of the housing 1. This reduces overheating of the heating element 21 on the circuit board 2 and reduces heating of the air within the inner cavity 11 caused by the heating element 21. This prevents excessive temperatures in the inner cavity 11 of the housing 1 from affecting the scanning results of the pathological sections 5.

[0043] Specifically, if Figure 1 and Figure 5 As shown, the cooling channel 210 located directly below the heating element 21 is arranged in a serpentine or S-shaped manner to increase the heat exchange time between the cooling medium and the heating element 21 and improve the cooling efficiency of the cooling medium on the heating element 21.

[0044] In this embodiment, the medium supply assembly includes a cooling fan 110, which is arranged at the medium inlet 211 and / or the medium outlet 212, that is, at least one cooling fan 110 is arranged at the medium inlet 211 and the medium outlet 212, so that external cold air is input from the medium inlet 211 into the cooling channel 210 through the cooling fan 110, and the air in the cooling channel 210 that completes heat exchange with the circuit board 2 flows out from the medium outlet 212.

[0045] In actual operation, the medium inlet 211 can also be connected to an external air conditioning air outlet device to input cooling air into the cooling channel 210 to improve the cooling efficiency of the cooling plate 200. At the same time, a cooling fan 110 is provided at the medium outlet 212 to increase the flow rate of air in the cooling channel 210, further improving the cooling efficiency of the cooling plate 200. Such designs are all within the scope of protection of the present invention.

[0046] In one embodiment, a guide layer 220 is provided at one end of the cooling plate 200 facing away from the circuit board 2. An air channel 221 is provided within the guide layer 220. An air inlet 222 and an air outlet 223 are provided at each end of the air channel 221, respectively, which are connected to the inner cavity 11 of the housing 1. This allows the air in the inner cavity 11 to circulate through the air channel 221 and achieve cooling and heat dissipation. Specifically, the air in the inner cavity 11 enters the air channel 221 through the air inlet 222, and exchanges heat with the cooling medium in the cooling plate 200 within the air channel 221 to achieve cooling. The cooled air then returns to the inner cavity 11 through the air outlet 223, thereby facilitating cooling of the inner cavity 11.

[0047] Among them, by connecting the air inlet 222 and the air outlet 223 to the inner cavity 11, internal air circulation cooling of the inner cavity 11 is achieved, avoiding the introduction of external air and causing dust and other impurities from the outside, which is beneficial to ensuring the safety of the pathological section 5.

[0048] In one embodiment, the cooling plate 200 is further provided with a guide fan 230, which is disposed at the air inlet 222 and / or the air outlet 223. The guide fan 230 thereby increases the air flow velocity within the air flow channel 221 and improves cooling efficiency. Furthermore, the air inlet 222 and the air outlet 223 are disposed on opposite sides of the cooling plate 200, with the air inlet 222 disposed at an end of the cooling plate 200 adjacent to the scanning platform 6 within the scanner 1, and the air outlet 223 disposed at an end of the cooling plate 200 away from the scanning platform 6. This prevents air from being blown directly toward the scanning platform 6 through the air outlet 223, which could result in excessive wind speed at the scanning platform 6 and affect the scanning operation of the pathology sections 5 located on the scanning platform 6.

[0049] In one embodiment, the flow path of the air flow channel 221 gradually increases from the air inlet 222 to the air outlet 223 to increase the heat exchange time and area between the air and the cooling medium in the cooling plate 200, thereby improving the cooling efficiency of the cooling medium on the air in the inner cavity 11.

[0050] In one embodiment, the scanner further includes a feed assembly 4, which includes a drive structure 41 and a tray rack 43 for placing a tray 42. The drive structure 41 is in transmission connection with the tray rack 43 to drive the tray rack 43 up and down to transport the tray 42, wherein the pathological sections 5 are placed on the tray 42. Specifically, the drive structure 41 includes a fixed bracket 4101, on which a drive motor 4102 is provided. A connecting member 4104 is transmission-connected to a transmission shaft 4103 of the drive motor 4102. The connecting member 4104 is fixedly connected to the tray rack 43, so that the drive motor 4102 drives the tray rack 43 to move up and down along the axis of the transmission shaft 4103.

[0051] A feed bin door 12 is provided on one side wall of the machine body 1, adjacent to the tray rack 43. The operator opens the feed bin door 12 and places the tray 42 on the tray rack 43. A scanning platform 6 and a limit baffle 7 are also provided within the machine body 1. The limit baffle 7 is provided on the side of the tray rack 43 facing away from the feed bin door 12, and is provided between the scanning platform 6 and the tray rack 43. The limit baffle 7 is used to assist the operator in limiting the position of the tray 42 when placing the tray 42, ensuring that the tray 42 is accurately placed. The limit baffle 7 is provided with a feed port 71 that passes through the limit baffle 7 along its thickness. The corresponding tray 42 is transported to the feed port 71 by the drive structure 41, and then the tray 42 is transported from the feed port 71 to the scanning platform 6 for scanning.

[0052] Furthermore, if Figure 10As shown, the upper edge and lower edge of the feed port 71 facing the tray rack 43 are both provided with a first chamfered surface 72, and the end of the tray 42 facing the feed port 71 is provided with a second chamfered surface 4201, and the tray 42 has a second chamfered surface 4201 corresponding to the upper edge and lower edge of the feed port 71 along its thickness direction. When the tray 42 enters from the feed port 71 and collides with the upper edge or lower edge of the feed port 71, the contact between the first chamfered surface 72 and the second chamfered surface 4201 can reduce the impact of the tray 42 and the limit baffle 7, and under the action of the first chamfered surface 72 and the second chamfered surface 4201, the tray 42 can still smoothly enter the scanning platform 6 from the feed port 71.

[0053] Moreover, when the feeding position of the tray 42 is too deep and partially enters the feed port 71 but does not exceed the limit baffle 7, during the process of the driving structure 41 driving the tray 42 to rise and fall, due to the action of the first chamfered surface 72 and the second chamfered surface 4201, the tray 42 can be smoothly moved out of the feed port 71 during the rising or falling process, avoiding interference between the tray 42 and the limit baffle 7.

[0054] Furthermore, the limit baffle 7 is provided with a third chamfered surface 73 at both ends along the lifting direction of the tray 42. Thus, when the tray 42 is outside the upper and lower ends of the limit baffle 7, and part of the tray 42 is located within the horizontal projection range of the limit baffle 7, when the driving structure 41 drives the tray 42 to move up and down, the third chamfered surface 73 and the second chamfered surface 4201 can ensure that the tray 42 moves out of the horizontal projection range of the limit baffle 7, thereby avoiding interference between the tray 42 and the limit baffle 7.

[0055] In one embodiment, a limit sensor 74 for sensing the pallet 42 is provided on the side of the limit baffle 7 facing away from the pallet rack 43. When the pallet 42 exceeds the position of the limit baffle 7 during the process of placing the pallet 42 into the pallet rack 43, the limit sensor 74 recognizes that the position of the pallet 42 has exceeded and issues an alarm. The operator can only proceed to the next step after readjusting the position of the pallet 42. This helps to avoid interference between the position of the pallet 42 and the limit baffle 7 when the driving structure 41 drives the pallet rack 43 to move the pallet 42.

[0056] In one embodiment, the tray 42 includes a body 4202 having a plurality of placement slots 4203 for placement of pathological sections 5. The body 4202 also includes a clamping assembly 8, which includes a driving member 81, a transmission rod 82, and a clamping block 83. The clamping block 83 has a first position and a second position. When the clamping block 83 is in the first position, the clamping block 83 is at least partially located above the placement slots 4203 and within the horizontal projection of the pathological sections 5, thereby clamping and securing the pathological sections 5 within the placement slots 4203. When the clamping block 83 is in the second position, the clamping block 83 is located outside the horizontal projection of the pathological sections 5. Specifically, the clamping block 83 is located outside the horizontal projection of the placement slots 4203, allowing the pathological sections 5 to be removed or inserted. The driving member 81 is in transmission connection with the clamping block 83 via the transmission rod 82, thereby driving the clamping block 83 to move between the first position and the second position, thereby clamping or releasing the pathological sections 5.

[0057] Furthermore, the driving member 81 includes a cam 8101 and a return spring 8102. The cam 8101 is in driving connection with the transmission rod 82. Rotating the cam 8101 drives the transmission rod 82 to move along its axis, thereby driving the clamping block 83 to move along the axis of the transmission shaft 4103 to reach the first position and the second position. The return spring 8102 is connected to the clamping block 83 and / or the transmission rod 82 and has a tendency to move the clamping block 83 toward the first position.

[0058] Furthermore, in this embodiment, two clamping blocks 83 are provided, one on each side of the placement slot 4203, to ensure a secure clamping of the pathological slice 5. The cam 8101 is configured as an elliptical cam 8101 structure in horizontal projection. When the cam 8101 is rotated, the cam 8101 simultaneously pushes the transmission rods 82 on both sides to move, thereby driving the clamping blocks 83 on both sides to move, achieving a synchronized opening or closing operation, which is simple and convenient to operate.

[0059] Example 2

[0060] like Figure 13As shown, the difference between this embodiment and the first embodiment is that the medium supply assembly in this embodiment includes a liquid cooling water tank 120, which includes a water outlet 121 connected to the medium inlet 211 and a water return end 122 connected to the medium outlet 212. The water outlet 121 is used to input a coolant into the cooling channel 210 through the medium inlet 211, and the coolant with a higher temperature after heat exchange is recovered and cooled through the water return end 122, so that the coolant is circulated in the cooling channel 210, and the cooling plate 200 cools and dissipates heat from the circuit board 2. In this embodiment, the use of liquid cooling achieves higher cooling efficiency than the air cooling method. In addition, the other structures of this embodiment are exactly the same as those of the first embodiment and will not be repeated here.

[0061] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A scanner, characterized in that: The invention comprises a machine body (1), a circuit board (2), a medium supply assembly, and a cooling plate (200), wherein the medium supply assembly is arranged outside the machine body (1) and connected to an external refrigeration device, the circuit board (2) and the cooling plate (200) are arranged in an inner cavity (11) of the machine body (1), and the cooling plate (200) is bonded to the circuit board (2) along one side of its thickness direction by a heat-conducting adhesive (3), and a cooling channel (210) for circulating a cooling medium is provided in the cooling plate (200), and a medium inlet (211) and a medium outlet (212) connected to the outside of the machine body (1) are respectively provided at both ends of the cooling channel (210), and the medium inlet (211) and / or the medium outlet (212) are connected to the medium supply assembly.

2. The scanner according to claim 1, wherein An air guide layer (220) is provided at one end of the cooling plate (200) facing away from the circuit board (2), an air flow channel (221) is provided in the air guide layer (220), and an air inlet (222) and an air outlet (223) communicating with the inner cavity (11) are provided at both ends of the air flow channel (221).

3. The scanner according to claim 2, wherein: The cooling plate (200) is further provided with a guide fan (230), and the guide fan (230) is arranged at the air inlet (222) and / or the air outlet (223).

4. The scanner according to claim 2 or 3, characterized in that The flow path of the air flow channel (221) gradually increases in a direction from the air inlet (222) to the air outlet (223).

5. The cooling mechanism according to any one of claims 1 to 3, characterized in that: The medium supply assembly comprises a cooling fan (110), and the cooling fan (110) is arranged at the medium inlet (211) and / or the medium outlet (212).

6. The scanner according to any one of claims 1 to 3, characterized in that The medium supply assembly comprises a liquid cooling water tank (120), and the liquid cooling water tank (120) comprises a water outlet (121) connected to the medium inlet (211) and a water return end (122) connected to the medium outlet (212).

7. The scanner according to any one of claims 1 to 3, characterized in that: The machine further comprises a feeding assembly (4), wherein the feeding assembly (4) comprises a driving structure (41) and a tray rack (43) for placing a tray (42), wherein the driving structure (41) is in transmission connection with the tray rack (43) to drive the tray rack (43) to rise and fall; A feed bin door (12) is provided on one side wall of the machine body (1) adjacent to the tray rack (43), and a scanning platform (6) and a limit baffle (7) are also provided in the machine body (1). The limit baffle (7) is provided on a side of the tray rack (43) away from the feed bin door (12), and the limit baffle (7) is provided between the scanning platform (6) and the tray rack (43). A feed port (71) is provided on the limit baffle (7) and passes through the limit baffle (7) along the thickness direction thereof. The upper edge and the lower edge of the feed port (71) facing the tray rack (43) are both provided with a first chamfered surface (72), and the end of the tray (42) facing the feed port (71) is provided with a second chamfered surface (4201).

8. The scanner according to claim 7, wherein: A limit sensor (74) for sensing the pallet (42) is provided on a side of the limit baffle (7) facing away from the pallet rack (43).

9. The scanner according to claim 7, wherein: The tray (42) includes a body (4202), the body (4202) is provided with a plurality of placement slots (4203) for placing pathological sections (5), and the body (4202) is also provided with a clamping assembly (8), the clamping assembly (8) includes a driving member (81), a transmission rod (82) and a clamping block (83), the clamping block (83) has a first position and a second position, when the clamping block (83) is located at the first position, the clamping block (83) is at least partially located above the placement slots (4203) and within the horizontal projection range of the pathological section (5), when the clamping block (83) is located at the second position, the clamping block (83) is located outside the horizontal projection range of the pathological section (5), the driving member (81) is connected to the clamping block (83) through the transmission rod (82) to drive the clamping block (83) to move between the first position and the second position.

10. The scanner according to claim 9, wherein: The driving member (81) includes a cam (8101) and a return spring (8102), wherein the cam (8101) is in transmission connection with the transmission rod (82) and drives the transmission rod (82) to move along its axial direction, thereby driving the clamping block (83) to move between the first position and the second position; The return spring (8102) is connected to the clamping block (83) and / or the transmission rod (82) and has a tendency to move the clamping block (83) toward the first position.

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