Sample transfer device

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a sample transfer device. The sample transfer device comprises a base, a bracket, a shear fork structure, a driving structure and a guide structure, wherein the shear fork structure is arranged between the base and the bracket; the scissor fork structure is driven by the driving structure to stretch out and draw back, and the guide structure is used for guiding, so that the bracket ascends and descends; the guide main shaft is arranged on the guide fixing base, the guide auxiliary shaft is arranged on the guide base to replace a traditional whole guide shaft, when the shear fork structure is in a contraction state, the guide piece and the guide base can be arranged on the guide fixing base in an overlapped mode, and when the shear fork structure is in an open state, the guide piece and the guide base are far away from the guide fixing base. The guide countershaft moves along with the guide seat, so that the lifting stroke of the sample transfer device is met, the overall height of the sample transfer device is effectively reduced, the occupied space is saved, and the use limitation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a sample transfer device. Background Art

[0002] During the operation of medical instruments, it is necessary to place a sample on a sample transfer device, and the sample transfer device is used to realize the lifting or lowering function in the height direction, so as to realize the transfer of the sample at different heights inside the instrument.

[0003] In the prior art, the sample transfer device includes a lifting platform and a whole guiding shaft or guide rail extending in the vertical direction, and the whole lifting platform can be lifted along the guiding shaft or guide rail. Since the guiding shaft or guide rail is vertically placed, under the condition of meeting the lifting stroke condition in the height direction, the overall height of the device is too large, resulting in a large occupied space and great limitations in use.

[0004] That is, a whole guiding shaft or guide rail of the existing sample transfer device is vertically placed. Under the condition of meeting the lifting stroke condition in the height direction, there are disadvantages that the overall height of the device is too large, resulting in a large occupied space and great limitations in use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a sample transfer device to solve the problem that the existing sample transfer device has a too large overall height, resulting in a large occupied space and great limitations in use under the condition of meeting the lifting stroke condition in the height direction.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a sample transfer device, which includes:

[0008] A base, a bracket and a scissor structure arranged between the base and the bracket;

[0009] A guiding structure, including a guiding component, the guiding component includes a stacked guiding fixed seat, a guiding seat and a guiding member. The scissor structure is connected to the base through the guiding fixed seat, and the guiding seat and the guiding member are respectively arranged at two movable joints of the scissor structure; a guiding main shaft is arranged on the guiding fixed seat, the guiding seat is slidably sleeved on the guiding main shaft, a guiding sub-shaft is arranged on the guiding seat, and the guiding member is slidably sleeved on the guiding sub-shaft;

[0010] A driving structure, arranged on the base for driving the scissor structure to expand and contract, so as to drive the guiding seat and the guiding member to slide, and make the bracket approach or move away from the base.

[0011] As an alternative technical solution of a sample transfer device, two connecting rods of the scissor structure are rotatably connected to form one movable joint. The scissor structure further includes a fastener and a rotary sliding member. The rotary sliding member is disposed inside the connecting rod, and the fastener passes through the rotary sliding members of the two connecting rods and is connected to the guide base or the guide member at its end.

[0012] As an alternative technical solution of a sample transfer device, the scissor structure further includes a sleeve. Two ends of the sleeve respectively abut against the two connecting rods, and the sleeve is sleeved outside the fastener.

[0013] As an alternative technical solution of a sample transfer device, the drive structure includes:

[0014] A first guide rail disposed on the base;

[0015] A sliding member slidably disposed on the first guide rail, and the scissor structure is connected to the sliding member;

[0016] A drive member disposed on the base, and the drive member can drive the sliding member to slide along the first guide rail.

[0017] As an alternative technical solution of a sample transfer device, the guide assembly further includes a sliding sleeve. The sliding sleeve is embedded and fixed in the guide base, and the guide base and the guide main shaft are slidably connected through the sliding sleeve.

[0018] As an alternative technical solution of a sample transfer device, the sample transfer device further includes a bracket support member. The scissor structure is connected to the bracket through the bracket support member.

[0019] As an alternative technical solution of a sample transfer device, the sample transfer device further includes a connecting member. The connecting member is slidably disposed on the bracket support member, and the scissor structure is slidably connected to the bracket support member through the connecting member.

[0020] As an alternative technical solution of a sample transfer device, both sides of the scissor structure have at least two movable joints, and two sets of guide assemblies are provided. The two sets of guide assemblies are respectively disposed at the movable joints on both sides of the scissor structure.

[0021] As an alternative technical solution of a sample transfer device, the guide main shaft is detachably disposed on the guide fixing base, and / or the guide sub-shaft is detachably disposed on the guide base.

[0022] As an alternative technical solution of a sample transfer device, two diagonally arranged guide main shafts are provided on the guide fixing base, and / or two diagonally arranged guide sub-shafts are provided on the guide base.

[0023] Beneficial effects:

[0024] The utility model provides a sample transfer device, which includes a base, a bracket, a scissor structure, a driving structure and a guiding structure. The scissor structure is arranged between the base and the bracket; the guiding structure includes a guiding component, and the guiding component includes a stacked guiding fixed seat, a guiding seat and a guiding piece. The scissor structure is connected to the base through the guiding fixed seat, the guiding seat and the guiding piece are respectively arranged at two movable joints of the scissor structure. A guiding main shaft is arranged on the guiding fixed seat, the guiding seat is slidably sleeved on the guiding main shaft, a guiding sub-shaft is arranged on the guiding seat, and the guiding piece is slidably sleeved on the guiding sub-shaft; the driving structure is arranged on the base and is used to drive the scissor structure to expand and contract, so as to drive the guiding seat and the guiding piece to slide, and make the bracket approach or move away from the base. The driving structure is used to drive the scissor structure to expand and contract, and the guiding structure is used for guiding, so as to realize the lifting of the bracket; by arranging a guiding main shaft on the guiding fixed seat and a guiding sub-shaft on the guiding seat to replace a traditional whole guiding shaft, when the scissor structure is in a contracted state, the guiding piece and the guiding seat can be stacked on the guiding fixed seat, when the scissor structure is in an opened state, the guiding piece and the guiding seat move away from the guiding fixed seat, and the guiding sub-shaft will move along with the guiding seat, so as to meet the lifting stroke of the sample transfer device, and effectively reduce the overall height of the sample transfer device, save the occupied space and reduce the use limitation. Description of the drawings

[0025] Figure 1 is a schematic structural diagram of the sample transfer device provided by an embodiment of the utility model;

[0026] Figure 2 is a schematic structural diagram of the base and the driving structure provided by an embodiment of the utility model;

[0027] Figure 3 is a partial schematic structural diagram of the sample transfer device provided by an embodiment of the utility model Figure 1 ;

[0028] Figure 4 is Figure 3 a partial enlarged view of A in

[0029] Figure 5 is a partial schematic structural diagram of the sample transfer device provided by an embodiment of the utility model Figure 2 ;

[0030] Figure 6 is a schematic structural diagram of the bracket provided by an embodiment of the utility model;

[0031] Figure 7 is a schematic structural diagram of the sample transfer device in a contracted state provided by an embodiment of the utility model;

[0032] Figure 8 It is a schematic structural diagram of the open state of the sample transfer device provided by the embodiment of the present utility model.

[0033] In the figure:

[0034] 10. Base;

[0035] 20. Driving structure; 21. Driving member; 22. First guide rail; 23. Sliding member;

[0036] 30. Scissor structure; 31. Link; 32. Fastener; 33. Rotary sliding member; 34. Sleeve;

[0037] 40. Guiding structure; 41. Guiding fixed seat; 41a. First guiding fixed seat; 41b. Second guiding fixed seat; 411. Guiding main shaft; 42. Guiding seat; 42a. First guiding seat; 42b. Second guiding seat; 421. Guiding sub-shaft; 43. Guiding member; 43a. First guiding member; 43b. Second guiding member; 44. Sliding sleeve assembly;

[0038] 51. Bracket support member; 52. Connecting member;

[0039] 60. Bracket. Specific embodiments

[0040] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0041] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0043] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] As Figures 1 to 6 shown, this embodiment provides a sample transfer device, which includes a base 10, a bracket 60, a scissor structure 30, a driving structure 20 and a guiding structure 40. The scissor structure 30 is arranged between the base 10 and the bracket 60; the guiding structure 40 includes a guiding component, and the guiding component includes a stacked guiding fixed seat 41, a guiding seat 42 and a guiding member 43. The scissor structure 30 is connected to the base 10 through the guiding fixed seat 41. The guiding seat 42 and the guiding member 43 are respectively arranged at two movable joints of the scissor structure 30. A guiding main shaft 411 is provided on the guiding fixed seat 41, the guiding seat 42 is slidably sleeved on the guiding main shaft 411, a guiding sub-shaft 421 is provided on the guiding seat 42, and the guiding member 43 is slidably sleeved on the guiding sub-shaft 421; the driving structure 20 is arranged on the base 10 and is used to drive the scissor structure 30 to expand and contract, so as to drive the guiding seat 42 and the guiding member 43 to slide, and make the bracket 60 approach or move away from the base 10.

[0045] The driving structure 20 is used to drive the scissor structure 30 to expand and contract, and the guiding structure 40 is used to guide, so as to realize the lifting of the bracket 60; by arranging a guiding main shaft 411 on the guiding fixed seat 41 and a guiding sub-shaft 421 on the guiding seat 42 to replace the traditional whole guiding shaft, when the scissor structure 30 is in a contracted state, the guiding seat 42 and the guiding member 43 can be stacked on the guiding fixed seat 41, and when the scissor structure 30 is in an expanded state, the guiding member 43 and the guiding seat 42 are far away from the guiding fixed seat 41, and the guiding sub-shaft 421 will move along with the guiding seat 42, thereby meeting the lifting stroke of the sample transfer device and effectively reducing the overall height of the sample transfer device, saving occupied space and reducing the use limitations.

[0046] In this embodiment, the base 10 is in a flat plate shape and extends in the horizontal direction, and both the guiding main shaft 411 and the guiding sub-shaft 421 extend in the vertical direction.

[0047] Specifically, the scissor structure 30 includes multiple groups of scissor components, each group of scissor components includes two connecting rods 31 rotatably connected in the middle, and each group of scissor components is in an X shape; multiple groups of scissor components are arranged side by side, and the ends of the connecting rods 31 of adjacent two groups of scissor components are rotatably connected, thereby forming a scissor structure.

[0048] In this embodiment, the scissor structure 30 includes three groups of scissor components in an X shape, and the three groups of scissor components are arranged side by side in the vertical direction; in the scissor component at the top, the tops of the two connecting rods 31 are respectively used as the first top connection end and the second top connection end of the scissor structure 30; in the scissor component at the bottom, the bottoms of the two connecting rods 31 are respectively used as the first bottom connection end and the second bottom connection end of the scissor structure 30; the first bottom connection end and the first top connection end are located on one side of the scissor structure 30, and the second bottom connection end and the second top connection end are located on the other side of the scissor structure 30.

[0049] It can be understood that when the first bottom connection end and the second bottom connection end are close to each other, the scissor structure 30 is in an open state, and the overall height of the scissor structure 30 increases; when the first bottom connection end and the second bottom connection end are far away from each other, the scissor structure 30 is in a contracted state, and the overall height of the scissor structure 30 decreases.

[0050] The two connecting rods 31 of the scissor structure 30 are rotatably connected to form a movable joint. It can be understood that the guiding components of the guiding structure 40 can be arranged in the middle of the scissor structure 30 (i.e., at the position where the two connecting rods 31 of each group of scissor components are rotatably connected in the middle). In this embodiment, two groups of guiding components are arranged, and the two groups of guiding components are respectively located at the movable joints at the two side edges of the scissor structure 30 (i.e., at the positions where the ends of the connecting rods 31 of adjacent two groups of scissor components are rotatably connected).

[0051] See Figure 4, the scissor structure 30 further includes a fastener 32 and a rotary sliding member 33. The rotary sliding member 33 is provided inside the connecting rod 31. The fastener 32 passes through the rotary sliding members 33 of the two connecting rods 31 and is connected to the guide seat 42 or the guide member 43 at its end. At the connection of the two connecting rods 31, they are connected by the fastener 32 and the rotary sliding member 33. The rotary sliding member 33 can reduce the friction between the fastener 32 and the connecting rod 31, reduce the wear of the fastener 32, and enable the connecting rod 31 to rotate smoothly. Among them, the fastener 32 can be a pin, and the rotary sliding member 33 can be a bearing.

[0052] To prevent the two connecting rods 31 from contacting each other, the scissor structure 30 further includes a sleeve 34. The two ends of the sleeve 34 respectively abut against the two connecting rods 31, and the sleeve 34 is sleeved outside the fastener 32. By providing the sleeve 34, the two connecting rods 31 are separated by the sleeve 34 to prevent the large-area contact of the two connecting rods 31 from affecting the rotation of the connecting rod 31.

[0053] In this embodiment, a sleeve 34 and a rotary sliding member 33 are also provided at the middle rotation connection of the two connecting rods 31 of each scissor assembly; a sleeve 34 and a rotary sliding member 33 are also provided at the connection of the connecting rod 31 of the scissor structure 30 and the guide fixing seat 41; both the sleeve 34 and the rotary sliding member 33 are made of materials with good self-lubricating properties, such as aluminum bronze materials.

[0054] See Figures 1 to 4 , the driving structure 20 includes a driving member 21, a first guide rail 22, and a sliding member 23. The first guide rail 22 is provided on the base 10, the sliding member 23 is slidably provided on the first guide rail 22, the scissor structure 30 is connected to the sliding member 23, and the driving member 21 is provided on the base 10. The driving member 21 can drive the sliding member 23 to slide along the first guide rail 22. By providing the first guide rail 22 and the sliding member 23, the scissor structure 30 is connected to the sliding member 23, the driving member 21 drives the sliding member 23 to slide along the first guide rail 22, and the movement of the sliding member 23 causes the scissor structure 30 to expand and contract, thereby driving the bracket 60 to move. Among them, the driving member 21 can be a lead screw motor.

[0055] In this embodiment, the first bottom connection end of the scissor structure 30 is connected to the sliding member 23, and the second bottom connection end of the scissor structure 30 is fixed to the base 10. When the sliding member 23 moves, it drives the first bottom connection end to approach or move away from the second bottom connection end, thereby realizing the expansion and contraction of the scissor structure 30; the first guide rail 22 is arranged in the horizontal direction.

[0056] By using the driving structure 20, the horizontal movement of the sliding member 23 along the first guide rail 22 is converted into driving the scissor structure 30 to expand and contract, thereby realizing the lifting of the bracket 60. The structure is compact, can save the occupied space, and is convenient to control the precise displacement of the sliding member 23 in the horizontal direction, and further control the height of the bracket 60.

[0057] When the first bottom connection end of the scissor structure 30 moves, the first top connection end moves accordingly. To ensure the stable support of the bracket 60, the sample transfer device further includes a bracket support member 51, and the scissor structure 30 is connected to the bracket 60 through the bracket support member 51. By providing the bracket support member 51, when the scissor structure 30 expands and contracts, the scissor structure 30 and the bracket support member 51 cooperate with each other, which is convenient for fixing the bracket 60 and can also ensure the stability of the bracket 60.

[0058] To facilitate the relative movement between the first top connection end of the scissor structure 30 and the bracket support member 51, the sample transfer device further includes a connecting member 52. The connecting member 52 is slidably disposed on the bracket support member 51, and the scissor structure 30 is slidably connected to the bracket support member 51 through the connecting member 52. In this embodiment, the first top connection end of the scissor structure 30 is rotatably connected to the connecting member 52, the connecting member 52 is slidably connected to the bracket support member 51, and the second top connection end of the scissor structure 30 is rotatably connected to the bracket support member 51; when the first top connection end moves, it drives the connecting member 52 to slide, avoiding the situation that the scissor structure 30 cannot expand and contract due to the bracket support member 51 restricting the movement of the first top connection end.

[0059] See Figure 7 , in this embodiment, the two sets of guiding components are respectively the first set of guiding components and the second set of guiding components. The first set of guiding components includes a first guiding fixed seat 41a, a first guiding seat 42a and a first guiding member 43a, and the second set of guiding components includes a second guiding fixed seat 41b, a second guiding seat 42b and a second guiding member 43b.

[0060] Specifically, the first guiding fixed seat 41a is fixed to the sliding member 23 by bolts and is disposed on the base 10 through the sliding member 23; the first bottom connection end of the scissor structure 30 is rotatably connected to the first guiding fixed seat 41a and is connected to the base 10 through the first guiding fixed seat 41a; the first guiding seat 42a and the first guiding member 43a are sequentially stacked on the first guiding fixed seat 41a and are respectively rotatably connected to an active joint of the scissor structure 30; a guiding main shaft 411 is provided on the first guiding fixed seat 41a, a guiding sub-shaft 421 is provided on the first guiding seat 42a, and the guiding main shaft 411 on the first guiding fixed seat 41a and the guiding sub-shaft 421 on the first guiding seat 42a are arranged side by side in the horizontal direction.

[0061] The second guiding fixed seat 41b is fixed on the base 10. The second guiding seat 42b and the second guiding member 43b are sequentially stacked on the second guiding fixed seat 41b and are respectively rotatably connected to an active joint of the scissors structure 30. The second bottom connecting end of the scissors structure 30 is rotatably connected to the second guiding fixed seat 41b and is fixed on the base 10 through the second guiding fixed seat 41b. Two guiding main shafts 411 arranged diagonally are provided on the second guiding fixed seat 41b, and two guiding sub-shafts 421 arranged diagonally in layers are provided on the second guiding seat 42b. By providing two guiding main shafts 411 and two guiding sub-shafts 421 arranged diagonally, while playing a guiding role in the vertical direction, the position of the scissors structure 30 in the horizontal direction during the telescopic process can also be restricted, which helps to ensure the stability of the telescopic movement of the scissors structure 30.

[0062] In this embodiment, all the guiding main shafts 411 are detachably arranged on the guiding fixed seat 41; all the guiding sub-shafts 421 are detachably arranged on the guiding seat 42. By providing the detachable guiding main shafts 411 and guiding sub-shafts 421, the guiding main shafts 411 and guiding sub-shafts 421 with different lengths can be replaced according to the actually required lifting stroke, and the flexible combination is convenient for maintenance. Both the guiding main shafts 411 and the guiding sub-shafts 421 can be detachably fixed by bolts.

[0063] See Figure 5 , further, each group of guiding components further includes a sliding sleeve 44. The sliding sleeve 44 is embedded and fixed in the guiding seat 42, and the guiding seat 42 and the guiding main shaft 411 are slidably connected through the sliding sleeve 44. The sliding sleeve 44 is made of copper material. By embedding and fixing the sliding sleeve 44 in the guiding seat 42 and the guiding main shaft 411 slidably passing through the inside of the sliding sleeve 44, the guiding seat 42 can be slidably matched with the guiding main shaft 411 through the sliding sleeve 44, which helps to improve the smoothness of the sliding and further ensures the stable operation of the overall sample transfer device. In this embodiment, a sliding sleeve 44 is also provided inside the guiding member 43, and the guiding member 43 is slidably matched with the guiding sub-shaft 421 through the sliding sleeve 44. In this embodiment, the sliding sleeve 44 is in a cylindrical shape; the sliding sleeve 44 is detachably fixed in the guiding seat 42 by bolts.

[0064] See Figure 6 , the bracket 60 is used to place samples or reagents, and the bracket 60 can drive the samples or reagents to move up and down. In this embodiment, the bracket 60 is in a "Π" shape, the middle and bottom of the bracket 60 are hollowed out, a guiding portion is provided at the top of the bracket 60, and a manipulator or a transfer gripper can clamp samples or reagents from the front side or the rear side of the bracket 60. Under the guiding action of the guiding portion, the manipulator or the transfer gripper can accurately place the samples or reagents into the bracket 60.

[0065] The following is the specific use process of the sample transfer device:

[0066] See Figure 7 and Figure 8 As shown in Figure 7 and Figure 8 , the driving member 21 of the driving structure 20 drives the sliding member 23. The sliding member 23 drives the first guiding and fixing seat 41a and the first bottom connecting end of the scissor structure 30 to move. The first guiding and fixing seat 41a moves along the extension direction of the first guide rail 22 and gradually approaches the second guiding and fixing seat 41b, so that the first bottom connecting end gradually approaches the second bottom connecting end connected to the second guiding and fixing seat 41b, and the scissor structure 30 is in an open state. As the scissor structure 30 gradually opens, the bracket 60 rises to a certain height, and the manipulator or transfer gripper grabs the sample or reagent and places the sample or reagent into the bracket 60 from the front side or the rear side of the bracket 60.

[0067] The driving member 21 of the driving structure 20 drives the sliding member 23. The sliding member 23 drives the first guiding and fixing seat 41a and the first bottom connecting end of the scissor structure 30 to move. The first guiding and fixing seat 41a moves along the extension direction of the first guide rail 22 and gradually moves away from the second guiding and fixing seat 41b, so that the first bottom connecting end gradually moves away from the second bottom connecting end connected to the second guiding and fixing seat 41b, and the scissor structure 30 is in a contracted state. As the scissor structure 30 gradually contracts, the bracket 60 descends to a certain height, facilitating the transfer of the sample or reagent in the bracket 60 to the subsequent conveying device, and using the conveying device to transfer the sample or reagent away.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A sample transfer device, characterized in that: include: A base (10), a bracket (60), and a scissor structure (30) arranged between the base (10) and the bracket (60); The guide structure (40) comprises a guide assembly, wherein the guide assembly comprises a stacked guide fixing seat (41), a guide seat (42) and a guide member (43); the scissor structure (30) is connected to the base (10) via the guide fixing seat (41); the guide seat (42) and the guide member (43) are respectively arranged at two movable joints of the scissor structure (30); a guide main shaft (411) is arranged on the guide fixing seat (41); the guide seat (42) is slidably sleeved on the guide main shaft (411); a guide sub-shaft (421) is arranged on the guide seat (42); and the guide member (43) is slidably sleeved on the guide sub-shaft (421); A driving structure (20) is arranged on the base (10) and is used to drive the scissor structure (30) to extend and retract, thereby driving the guide seat (42) and the guide member (43) to slide, so that the bracket (60) moves closer to or farther away from the base (10).

2. The sample transfer device according to claim 1, characterized in that: The two connecting rods (31) of the scissor-type structure (30) are rotatably connected to form an active joint. The scissor-type structure (30) further comprises a fastener (32) and a rotary sliding member (33). The rotary sliding member (33) is arranged in the connecting rod (31). The fastener (32) is inserted into the rotary sliding members (33) of the two connecting rods (31) and the end thereof is connected to the guide seat (42) or the guide member (43).

3. The sample transfer device according to claim 2, characterized in that: The scissor-type structure (30) further comprises a sleeve (34), two ends of which are respectively in contact with the two connecting rods (31), and the sleeve (34) is sleeved on the outside of the fastener (32).

4. The sample transfer device according to claim 1, characterized in that: The driving structure (20) comprises: A first guide rail (22) is arranged on the base (10); A sliding member (23) is slidably disposed on the first guide rail (22), and the scissor structure (30) is connected to the sliding member (23); A driving member (21) is arranged on the base (10), and the driving member (21) can drive the sliding member (23) to slide along the first guide rail (22).

5. The sample transfer device according to claim 1, characterized in that: The guide assembly further comprises a sliding sleeve (44), wherein the sliding sleeve (44) is embedded and fixed in the guide seat (42), and the guide seat (42) and the guide main shaft (411) are slidably connected via the sliding sleeve (44).

6. The sample transfer device according to claim 1, characterized in that: The sample transfer device further comprises a bracket support (51), and the scissor structure (30) is connected to the bracket (60) via the bracket support (51).

7. The sample transfer device according to claim 6, characterized in that: The sample transfer device further comprises a connecting member (52), wherein the connecting member (52) is slidably disposed on the bracket support member (51), and the scissor structure (30) is slidably connected to the bracket support member (51) via the connecting member (52).

8. The sample transfer device according to any one of claims 1 to 7, characterized in that: Both sides of the scissor-fork structure (30) are provided with at least two movable joints, and two groups of guide components are provided, and the two groups of guide components are respectively provided at the movable joints on both sides of the scissor-fork structure (30).

9. The sample transfer device according to any one of claims 1 to 7, characterized in that: The guide main shaft (411) is detachably arranged on the guide fixing seat (41), and / or the guide secondary shaft (421) is detachably arranged on the guide seat (42).

10. The sample transfer device according to any one of claims 1 to 7, characterized in that: The guide fixing seat (41) is provided with two diagonally arranged guide main shafts (411), and / or the guide seat (42) is provided with two diagonally arranged guide sub-shafts (421).

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