Anti-lifting device

Abstract

The utility model relates to an anti-lifting device which comprises a base plate, an anti-lifting mechanism and a reset mechanism, the anti-lifting mechanism comprises a push plate, a driving piece and two anti-lifting pieces, the push plate slides on the base plate in the first direction, the driving piece is connected with the push plate, the two anti-lifting pieces slide on the base plate in the second direction, and the reset mechanism is connected with the push plate. Each anti-lifting piece comprises a clamping jaw part and a pushed part which are connected, the main pushing inclined surface corresponds to and abuts against the pushed inclined surface, the reset mechanism comprises reset pieces, each anti-lifting piece is correspondingly provided with the reset piece, the reset pieces are connected with the base plate and the anti-lifting pieces respectively, one of the push plate and the reset pieces drives the two anti-lifting pieces to slide back to back, and the other one drives the other anti-lifting piece to slide back to back. And the other one drives the two anti-lifting pieces to slide in opposite directions, so that the clamping jaw part clamps the consumable frame. When the clamping jaw part clamps the consumable rack and the mechanical arm clamps the consumables on the consumable rack, the consumable rack cannot be taken up, the consumable rack and the unused consumables are prevented from being broken, reagents are prevented from being spilled out, and cross contamination is avoided.

Description

Technical Field

[0001] This utility model relates to the field of reagent testing technology, and in particular to an anti-slip device. Background Technology

[0002] In fields such as genetics, biochemistry, immunology, and medicine, robotic arms are needed to grip and move consumables (such as pipette tips and test tubes) placed on consumable racks (such as polymerase chain reaction (PCR) plates, pipette tip boxes, deep well plates, and test tube racks) to facilitate the smooth execution of gene testing.

[0003] When the robotic arm picks up consumables, the tight connection between the consumables and the consumable rack, as well as the friction between them, may lift the consumable rack, break the rack and unused consumables on it, or even spill the reagents stored inside the consumables, causing cross-contamination and affecting the efficiency and accuracy of the test.

[0004] Therefore, there is an urgent need for an anti-slip device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an anti-slip device to at least solve one of the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides an anti-lifting device, comprising:

[0007] Base plate, which is used to position the consumable rack;

[0008] An anti-slip mechanism includes a push plate, a drive member, and two anti-slip members. The push plate is slidably disposed on a base plate along a first direction. The output end of the drive member is connected to the push plate. The two anti-slip members are slidably disposed on the base plate along a second direction and are symmetrically arranged along the second direction. The first direction and the second direction are perpendicular to each other. The push plate has two main pushing inclined surfaces. Each anti-slip member includes a claw portion and a pushed portion connected to each other. The pushed portion has a pushed inclined surface. The main pushing inclined surfaces and the pushed inclined surfaces correspond one-to-one and abut against each other.

[0009] A reset mechanism includes a reset component, and each of the anti-slip-up components is correspondingly provided with a reset component. One end of the reset component is connected to the base plate, and the other end is connected to the anti-slip-up component.

[0010] Of the push plate and the reset member, one drives the two anti-slip members to slide in opposite directions so that the claw part releases the consumable rack, and the other drives the two anti-slip members to slide in opposite directions so that the claw part clamps the consumable rack.

[0011] Furthermore, the pushed inclined surface extends from the center of the base plate to the outer edge along the second direction and tilts toward the push plate. The driving member drives the push plate to slide, thereby causing the two anti-slip members to slide in opposite directions.

[0012] Furthermore, the anti-slip mechanism also includes a first guide component, which includes a first guide rail and two first guide blocks. The anti-slip component also includes a first guide portion. The first guide rail is disposed on the base plate and extends along the second direction. The first guide blocks and the first guide portions are arranged in a one-to-one correspondence, and both first guide blocks slide on the first guide rail.

[0013] Furthermore, the anti-slip member also includes a first connecting portion, the first guiding portion is connected to the pushed portion, and the first guiding portion is connected to the claw portion through the first connecting portion.

[0014] Furthermore, at least one of the aforementioned claw portions is provided on the first connecting portion.

[0015] Furthermore, a movable groove is provided on the base plate, the movable groove extends along the second direction, and the claw portion is movably disposed within the movable groove.

[0016] Furthermore, the anti-tipping device also includes a detection mechanism, which can detect whether the claw portion is clamping the consumable rack.

[0017] Furthermore, the detection mechanism includes an optical coupler and a baffle plate. The optical coupler is disposed on the base plate, and the baffle plate is connected to the push plate. The baffle plate can block the transmit and receive signal path of the optical coupler.

[0018] Furthermore, the anti-lifting device also includes a positioning mechanism, which includes a positioning corner frame and two positioning seats. The positioning corner frame and the two positioning seats are both disposed on the base plate. The lower edge of the consumable rack is rectangular. The side of the positioning corner frame can abut against the adjacent first and second side of the lower edge of the consumable rack. The two positioning seats can abut against the other two side of the lower edge of the consumable rack, respectively.

[0019] Furthermore, the positioning corner frame is fixedly installed on the base plate, and the two positioning seats are adjustablely positioned on the base plate to accommodate consumable racks of different sizes.

[0020] The beneficial effects of this utility model are as follows:

[0021] The anti-slip device provided by this utility model includes a base plate, an anti-slip mechanism, and a reset mechanism. The base plate is used to position the consumable rack. The anti-slip mechanism includes a push plate, a drive member, and two anti-slip members. The push plate is slidably disposed on the base plate along a first direction. The output end of the drive member is connected to the push plate. The two anti-slip members are slidably disposed on the base plate along a second direction, and the two anti-slip members are symmetrically arranged along the second direction. The first direction and the second direction are perpendicular to each other. The push plate has two main pushing inclined surfaces. The anti-slip members include a claw part and a pushed part that are connected to each other. The pushed part has a pushed inclined surface. The main pushing inclined surfaces and the pushed inclined surfaces correspond one-to-one and abut against each other. The reset mechanism includes a reset member. Each anti-slip member is correspondingly provided with a reset member. One end of the reset member is connected to the base plate, and the other end is connected to the anti-slip member. Of the push plate and the reset member, one drives the two anti-slip members to slide back to back, so that the claw part releases the consumable rack. The other drives the two anti-slip members to slide towards each other, so that the claw part clamps the consumable rack. When the gripper clamps the consumable rack, the rack will not be lifted when the robotic arm picks up the consumables from it. This prevents damage to the rack and unused consumables, avoids spilling reagents stored on the rack, prevents cross-contamination, and eliminates the need for cleaning up spilled reagents, thus improving the efficiency and accuracy of testing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection between the anti-tipping device and the consumable rack provided in this embodiment of the utility model;

[0023] Figure 2 This is a top view of the connection between the anti-tipping device and the consumable rack provided in this embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the anti-slip device provided in this embodiment of the utility model;

[0025] Figure 4 This is a partial structural diagram of the anti-lifting device provided in this embodiment of the utility model. Figure 1 ;

[0026] Figure 5 This is a structural schematic diagram of the anti-slip device provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the push plate provided in an embodiment of the present utility model;

[0028] Figure 7 This is a partial structural diagram of the anti-lifting device provided in this embodiment of the utility model. Figure 2 .

[0029] In the picture:

[0030] 100. Anti-lifting device; 200. Consumables rack; 201. Rack body; 202. Protruding skirt; 203. Storage compartment;

[0031] 1. Bracket; 2. Base plate; 3. Anti-lifting mechanism; 4. Reset mechanism; 5. Detection mechanism; 6. Positioning mechanism; 7. Fixing base;

[0032] 21. Movable groove; 31. Anti-slip component; 32. Push plate; 33. Drive component; 34. First guide assembly; 35. Second guide assembly; 41. Reset component; 42. Mounting base; 51. Optical coupler; 52. Baffle; 61. Positioning corner frame; 62. Positioning block; 63. Positioning seat;

[0033] 311. Claw portion; 312. Pushed portion; 313. Pushed inclined surface; 314. First guide portion; 315. First connecting portion; 321. Main push portion; 322. Main push inclined surface; 323. Second guide portion; 324. Second connecting portion; 341. First guide rail; 342. First guide block; 351. Second guide rail; 352. Second guide block; 511. Detection groove. Detailed Implementation

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the drawings, not all of them.

[0035] This utility model defines certain directional terms. Unless otherwise stated, the directional terms used, such as "up", "down", "left", "right", "inner", and "outer", are used for ease of understanding and therefore do not constitute a limitation on the scope of protection of this utility model.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] like Figures 1-7 As shown, this embodiment provides an anti-lifting device 100, which is used during the process of a robotic arm gripping and transporting consumables on a consumable rack 200 to prevent the consumable rack 200 from being lifted, so as to ensure the smooth progress of gene testing.

[0039] The anti-slip device 100 includes a base plate 2, an anti-slip mechanism 3, and a reset mechanism 4. The base plate 2 is used to position the consumable rack 200. The anti-slip mechanism 3 includes a push plate 32, a drive member 33, and two anti-slip members 31. The push plate 32 is slidably disposed on the base plate 2 along a first direction. The output end of the drive member 33 is connected to the push plate 32. The two anti-slip members 31 are slidably disposed on the base plate 2 along a second direction, and the two anti-slip members 31 are symmetrically arranged along the second direction. The first direction and the second direction are perpendicular to each other. The push plate 32 has two main pushing inclined surfaces 322. The anti-slip members 31 include interconnected claw portions. 311 and the pushed part 312, the pushed part 312 has a pushed inclined surface 313, the main pushing inclined surface 322 and the pushed inclined surface 313 correspond one to one and abut against each other, the reset mechanism 4 includes a reset member 41, each anti-slip member 31 is correspondingly provided with a reset member 41, one end of the reset member 41 is connected to the base plate 2, the other end is connected to the anti-slip member 31, push plate 32 and reset member 41, of the two, one drives the two anti-slip members 31 to slide back to back, so that the claw part 311 releases the consumable rack 200, the other drives the two anti-slip members 31 to slide towards each other, so that the claw part 311 clamps the consumable rack 200. When the gripper 311 clamps the consumable rack 200, the consumable rack 200 will not be lifted when the robotic arm picks up the consumables on the consumable rack 200, preventing damage to the consumable rack 200 and unused consumables on the consumable rack 200, and also preventing spillage of reagents stored on the consumable rack 200, avoiding cross-contamination, and eliminating the need for cleaning up spilled reagents, thus improving the efficiency and accuracy of testing.

[0040] like Figure 1 and Figure 2 As shown, the consumable rack 200 includes a rack body 201 and a raised skirt 202. The raised skirt 202 is provided on the side of the rack body 201, and the claw part 311 clamps the raised skirt 202.

[0041] Furthermore, the main body 201 is provided with a storage compartment 203 for storing consumables.

[0042] Furthermore, the main body 201 is equipped with multiple rows and columns of storage slots 203 to store more consumables. The consumables can be of the same type or different types, and can be configured according to the actual situation.

[0043] In this embodiment, the consumable rack 200 can be a polymerase chain reaction (PCR) plate, pipette tip box, deep well plate, test tube rack, styrene-butadiene-styrene block copolymer (SBS) plate position, etc., and is not limited thereto.

[0044] In this embodiment, consumables can be pipette tips, test tubes, or reagents, and there is no limitation on the type of consumables.

[0045] like Figure 1 As shown, the anti-slip device 100 also includes a bracket 1, and a base plate 2 is disposed on the bracket 1. The bracket 1 provides support for the base plate 2.

[0046] Furthermore, the anti-slip device 100 also includes a fixing seat 7, which is disposed on the bracket 1 and is located on both sides of the bracket 1, respectively, along with the base plate 2. The fixing seat 7 is used to fix and install on the testing table of the testing equipment so that the anti-slip device 100 and the testing equipment can cooperate with the consumable rack 200 to complete the gene testing work.

[0047] In this embodiment, the first direction refers to Figures 1-4 In the X direction, the second direction refers to Figures 1-4 in the Y direction.

[0048] like Figures 1-3 As shown, the anti-lifting device 100 also includes a positioning mechanism 6, which includes a positioning corner frame 61 and two positioning seats 63. The positioning corner frame 61 and the two positioning seats 63 are both disposed on the base plate 2. The lower edge of the consumable rack 200 is rectangular. The side of the positioning corner frame 61 can abut against the adjacent first side and second side of the lower edge of the consumable rack 200. The two positioning seats 63 can abut against the other two side of the lower edge of the consumable rack 200 respectively, so as to restrict the movement of the consumable rack 200 on the base plate 2 along the first direction and the second direction.

[0049] Furthermore, the positioning corner frame 61 is fixedly installed on the base plate 2, and the two positioning seats 63 are adjustablely set on the base plate 2 to accommodate consumable racks 200 of different sizes.

[0050] Specifically, the positioning corner frame 61 includes a first frame and a second frame, which are arranged vertically. The first frame is parallel to the first side, and the second frame is parallel to the second side.

[0051] Preferably, the positioning corner frame 61 is set on one corner of the base plate 2, and the two positioning seats 63 are arranged in parallel on the other two sides of the lower edge of the consumable rack 200, making the structure compact and saving space.

[0052] In this embodiment, the lower edge of the consumable rack 200 is the edge of the raised skirt 202.

[0053] Furthermore, two positioning seats 63 are adjustablely positioned on the base plate 2. The position of the positioning seats 63 on the base plate 2 can be determined according to the size of the consumable rack 200, so that the positioning seats 63 adapt to the consumable rack 200 for positioning. When the consumable rack 200 is placed on the base plate 2, firstly, one corner of the consumable rack 200 is abutted against the positioning corner frame 61, so that the positioning corner frame 61 abuts against the first side and the second side respectively. Then, the two positioning seats 63 are finely adjusted so that both positioning seats 63 abut against the other two sides of the consumable rack 200 for positioning.

[0054] Furthermore, the positioning mechanism 6 also includes a positioning block 62, which is fixedly installed on the base plate 2 and can abut against the first side and / or the second side of the lower edge of the consumable rack 200.

[0055] In this embodiment, there are two positioning blocks 62, which abut against the first side and the second side respectively. Compared with the size of the consumable rack 200, the size of the positioning corner frame 61 along the first and second directions is smaller, and the positioning of the first and second sides of the lower edge of the consumable rack 200 is unstable. The setting of the positioning blocks 62 makes the positioning mechanism 6 more stable in positioning the first and second sides of the lower edge of the consumable rack 200.

[0056] like Figure 4As shown, in this embodiment, the inclined surface 313 extends from the center of the base plate 2 outward along the second direction and tilts towards the push plate 32. The driving member 33 drives the push plate 32 to slide, thereby causing the two anti-slip lifting members 31 to slide in opposite directions. That is, the driving member 33 drives the push plate 32 to slide to the right along the first direction, and the push plate 32 causes the two anti-slip lifting members 31 to slide in opposite directions, so that the claw part 311 releases the consumable rack 200, making it easier to remove or replace the consumable rack 200. During this process, the reset member 41 is compressed. After the consumable rack 200 is positioned on the base plate 2, the driving member 33 drives the push plate 32 to slide to the left along the first direction, and the compressed reset member 41 causes the two anti-slip lifting members 31 to slide in opposite directions. The lifting component 31 slides towards each other, ensuring that the pushed inclined surface 313 and the main pushing inclined surface 322 are always in contact. The claw part 311 clamps the consumable rack 200, preventing the consumable rack 200 from being lifted up when the robotic arm picks up the consumables on the consumable rack 200, preventing damage to the consumable rack 200 and unused consumables on the consumable rack 200, and also preventing spillage of reagents stored on the consumable rack 200, avoiding cross-contamination, and eliminating the need for cleaning up spilled reagents, thus improving the efficiency and accuracy of testing.

[0057] Furthermore, the reset mechanism 4 also includes a mounting base 42, which is mounted on the base plate 2, and one end of the reset member 41 is connected to the mounting base 42.

[0058] In this embodiment, one of the anti-slip-up components 31 is directly connected to the base plate 2 via a reset component 41, and the other anti-slip-up component 31 is connected to the mounting base 42 via a reset component 41. This embodiment is not limited in this respect and can be set according to the actual space. As long as a reset component 41 is provided between the anti-slip-up component 31 and the base plate 2 so that the reset component 41 can drive the anti-slip-up component 31 to move, so as to lock the consumable rack 200.

[0059] Specifically, in this embodiment, two reset members 41 are provided between the anti-slip member 31 and the base plate 2, and between the anti-slip member 31 and the mounting base 42, to increase the elastic pushing force applied by the reset members 41 to the anti-slip member 31 so as to secure the consumable rack 200.

[0060] like Figures 1-5 As shown, a movable groove 21 is provided on the base plate 2, the movable groove 21 extends along the second direction, and the claw part 311 is movably disposed in the movable groove 21.

[0061] like Figures 4-7As shown, the anti-lifting mechanism 3 also includes a first guide assembly 34, which includes a first guide rail 341 and two first guide blocks 342. The anti-lifting component 31 also includes a first guide portion 314. The first guide rail 341 is mounted on the base plate 2 and extends along a second direction. The first guide blocks 342 are correspondingly arranged with the first guide portions 314, and both first guide blocks 342 slide on the first guide rail 341. The first guide assembly 34 guides the claw portion 311.

[0062] Furthermore, the anti-slip member 31 also includes a first connecting part 315, a first guiding part 314 connected to the pushed part 312, and the first guiding part 314 connected to the claw part 311 through the first connecting part 315.

[0063] Furthermore, at least one claw portion 311 is provided on the first connecting portion 315.

[0064] In this embodiment, each anti-slip member 31 has two claw portions 311 on its first connecting portion 315, and the two claw portions 311 are spaced apart along the first direction. This arrangement makes the anti-slip member 31 more stable in clamping the consumable rack 200.

[0065] Specifically, the movable slot 21 and the claw part 311 are set in a one-to-one correspondence.

[0066] Furthermore, the anti-slip mechanism 3 also includes a second guide assembly 35, which guides the push plate 32. The second guide assembly 35 includes a second guide rail 351 and a second guide block 352. The push plate 32 includes a second guide portion 323. The second guide rail 351 is mounted on the base plate 2 and extends along a first direction. The second guide block 352 slides on the second guide rail 351 and is mounted on the second guide portion 323.

[0067] Furthermore, the push plate 32 also includes a main push part 321 and a second connecting part 324. The main push part 321 is connected to the second guide part 323. One main push inclined surface 322 is disposed on the main push part 321, and the other main push inclined surface 322 is disposed on the second connecting part 324. The second connecting part 324 is connected to the second guide part 323.

[0068] like Figure 4 and Figure 7 As shown, the anti-tipping device 100 also includes a detection mechanism 5, which can detect whether the claw part 311 is clamped to the consumable rack 200, so as to determine whether the consumable rack 200 can be taken out or put in.

[0069] Furthermore, the detection mechanism 5 includes an optocoupler 51 and a baffle 52. The optocoupler 51 is mounted on the base plate 2, and the baffle 52 is connected to the push plate 32. The baffle 52 can block the transmit and receive signal path of the optocoupler 51. When the push plate 32 moves along... Figure 7 When the push plate 32 slides to the right in the first direction, it drives the baffle 52 to slide to the right in the first direction. The baffle 52 blocks the transmit and receive signal path of the optocoupler 51. That is, when the optocoupler 51 is triggered, the claw part 311 releases the consumable rack 200, and the consumable rack 200 can be picked up and put down; when the push plate 32 slides to the right in the first direction, it drives the baffle 52 to slide to the right in the first direction. Figure 7 When the first direction is slid to the left, the push plate 32 drives the baffle 52 to slide to the left along the first direction. The baffle 52 no longer blocks the transmit and receive signal path of the optocoupler 51. That is, when the optocoupler 51 is triggered, the claw part 311 clamps the consumable rack 200 and the consumable rack 200 cannot be removed or placed.

[0070] Specifically, the optocoupler 51 is provided with a detection slot 511, and the receiving end and transmitting end of the optocoupler 51 are respectively located on opposite sides of the detection slot 511. The end of the baffle 52 is movable in the detection slot 511 along the first direction. The baffle 52 is moved by the push plate 32 so that the baffle 52 blocks the signal transmission and reception path of the optocoupler 51.

[0071] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A device for preventing lifting, characterized in that, include: Base plate (2), which is used to position the consumable rack (200); The anti-slip mechanism (3) includes a push plate (32), a drive member (33), and two anti-slip members (31). The push plate (32) is slidably disposed on the base plate (2) along a first direction. The output end of the drive member (33) is connected to the push plate (32). The two anti-slip members (31) are slidably disposed on the base plate (2) along a second direction, and the two anti-slip members (31) are symmetrically disposed along the second direction. The first direction and the second direction are perpendicular to each other. The push plate (32) has two main pushing inclined surfaces (322). The anti-slip member (31) includes a claw portion (311) and a pushed portion (312) connected to each other. The pushed portion (312) has a pushed inclined surface (313). The main pushing inclined surface (322) and the pushed inclined surface (313) correspond one-to-one and abut against each other. The reset mechanism (4) includes a reset member (41), and each of the anti-slip member (31) is provided with a corresponding reset member (41). One end of the reset member (41) is connected to the base plate (2), and the other end is connected to the anti-slip member (31). Of the push plate (32) and the reset member (41), one drives the two anti-slip members (31) to slide in opposite directions so that the claw part (311) releases the consumable rack (200), and the other drives the two anti-slip members (31) to slide in opposite directions so that the claw part (311) clamps the consumable rack (200).

2. The anti-slip device according to claim 1, characterized in that, The pushed inclined surface (313) extends outward from the center of the base plate (2) along the second direction and is inclined toward the push plate (32). The driving member (33) drives the push plate (32) to slide, thereby causing the two anti-slip members (31) to slide in opposite directions.

3. The anti-slip device according to claim 1 or 2, characterized in that, The anti-slip mechanism (3) further includes a first guide component (34), which includes a first guide rail (341) and two first guide blocks (342). The anti-slip component (31) further includes a first guide portion (314). The first guide rail (341) is disposed on the base plate (2) and extends along the second direction. The first guide blocks (342) are correspondingly disposed with the first guide portion (314), and both first guide blocks (342) slide on the first guide rail (341).

4. The anti-slip device according to claim 3, characterized in that, The anti-slip member (31) further includes a first connecting part (315), the first guiding part (314) is connected to the pushed part (312), and the first guiding part (314) is connected to the claw part (311) through the first connecting part (315).

5. The anti-slip device according to claim 4, characterized in that, At least one of the claw portions (311) is provided on the first connecting portion (315).

6. The anti-slip device according to claim 1 or 2, characterized in that, The base plate (2) is provided with a movable groove (21), which extends along the second direction, and the claw part (311) is movably disposed in the movable groove (21).

7. The anti-slip device according to claim 1 or 2, characterized in that, The anti-tipping device also includes a detection mechanism (5), which can detect whether the claw part (311) clamps the consumable rack (200).

8. The anti-slip device according to claim 7, characterized in that, The detection mechanism (5) includes an optical coupler (51) and a baffle (52). The optical coupler (51) is disposed on the base plate (2), and the baffle (52) is connected to the push plate (32). The baffle (52) can block the transmit and receive signal path of the optical coupler (51).

9. The anti-slip device according to claim 1 or 2, characterized in that, The anti-slip device also includes a positioning mechanism (6), which includes a positioning corner frame (61) and two positioning seats (63). The positioning corner frame (61) and the two positioning seats (63) are both located on the base plate (2). The lower edge of the consumable rack (200) is rectangular. The side of the positioning corner frame (61) can abut against the adjacent first and second side of the lower edge of the consumable rack (200). The two positioning seats (63) can abut against the other two side of the lower edge of the consumable rack (200) respectively.

10. The anti-slip device according to claim 9, characterized in that, The positioning corner frame (61) is fixedly installed on the base plate (2), and the two positioning seats (63) are adjustablely set on the base plate (2) to accommodate consumable racks (200) of different sizes.

Images