Transfer device of test tube rack and test tube rack

Abstract

The utility model provides a transfer device of a test tube rack and the test tube rack. The transfer device of the test tube rack comprises a rack; the movable frame is movably connected with the rack; the geometric center points of the at least three movable claws are not located on the same straight line, all the movable claws are slidably connected with the movable frame, and the moving directions of all the movable claws are used for enabling the movable claws to be close to or away from one another; wherein each movable claw comprises a claw body, and one end of the claw body is slidably connected with the movable frame; and the lifting structure is connected with the claw body and located at the position, away from one end, of the claw body, and at least part of the lifting structure extends out of the side wall of the claw body. The transfer device can be used for transferring test tubes and test tube racks, so that the solid sample testing equipment applying the transfer device is simpler in structure and lower in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the field of solid sample testing, in particular to a test tube rack transfer device and the test tube rack. Background Art

[0002] In solid sample testing, the solid sample is contained in a test tube and the test tube is contained in a test tube rack. During the testing process, the test tube and the test tube rack need to be transferred. In order to improve the degree of automation of sample testing, it is necessary to use automated or semi-automated testing equipment to realize the testing of solid samples, and a transfer device is required in the testing equipment to realize the transfer of the test tube and the test tube rack. The single function of the relevant transfer device leads to the complex structure of the testing equipment and high manufacturing cost. Utility Model Content

[0003] The utility model provides a transfer device for a test tube rack and the test tube rack, which are used to solve the technical problem of how to enrich the functions of the transfer device, thereby simplifying the structure of a test device and reducing the manufacturing cost of the test device.

[0004] An embodiment of the present invention provides a transfer device for a test tube rack, which includes: a frame; a movable frame movably connected to the frame; at least three movable claws, wherein the geometric center points of at least three movable claws are not located on the same straight line, each of the movable claws is slidably connected to the movable frame, and the movement direction of each movable claw is used to make the movable claws approach or move away from each other; wherein each of the movable claws includes: a claw body, one end of the claw body is slidably connected to the movable frame; a lifting structure, connected to the claw body and located at a position of the claw body away from the one end, and at least a portion of the lifting structure extends out of the side wall of the claw body.

[0005] In some embodiments, the lifting structure is fixedly connected to the claw body, and the lifting structure is not located on the approach side of the claw body, where the approach side is the side that enables the movable claws to move closer to each other.

[0006] In some embodiments, the lifting structure extends from a distal side of the claw body to a sidewall of the claw body, where the distal side is a side opposite to the proximal side.

[0007] In some embodiments, the lifting structure is movably connected to the claw body.

[0008] In some embodiments, the lifting structure is rotatably connected to the claw body, and a rotation axis of the lifting structure is parallel to an extension direction of the claw body.

[0009] In some embodiments, at least four of the movable claws are arranged centrally and symmetrically, wherein the movement directions of at least two of the movable claws are perpendicular.

[0010] In some embodiments, the lifting structure is located at the other end of the claw body opposite to the one end.

[0011] An embodiment of the present invention also provides a test tube rack, which has a plurality of spaced-apart accommodating cavities for accommodating test tubes. The test tube rack also has a lifting hole for allowing the lifting structure of the transfer device described in the above embodiments to pass through; wherein the depth direction of the accommodating cavity is parallel to the depth direction of the lifting hole.

[0012] In some embodiments, in the depth direction of the lifting hole, the outer contour of the projection of the lifting hole on the outer surface of the test tube rack is centrosymmetric with respect to the geometric center point of the test tube rack.

[0013] In some embodiments, the test tube rack further has a bracket hole, the bracket hole is spaced apart from the lifting hole, and the distance between the bracket hole and the geometric center point of the test tube rack is greater than the distance between the lifting hole and the geometric center point of the test tube rack.

[0014] The present invention provides a transfer device for a test tube rack, which includes: a frame, a movable frame movably connected to the frame, and at least three movable claws slidably connected to the movable frame, wherein the number of movable claws is at least three and the at least three movable claws are arranged non-collinearly, and each movable claw can move closer to or farther away from each other by sliding relative to the movable frame; wherein the movable claw includes a claw body at one end slidably connected to the movable frame, and the movement of the claw body towards or away from each other can achieve the clamping or release of the test tube, so that the test tube can be placed in the test tube rack to achieve the test tube. Transport, the movable claw also includes a lifting structure connected to the claw body and located at a position away from the end where the claw body is connected to the movable frame. At least part of the lifting structure extends out of the side wall of the claw body. By moving the lifting structure to the bottom of the test tube rack, the lifting structure can be brought into contact with the bottom surface of the test tube rack to lift the test tube rack. In this state, the test tube rack can be transported by the movement of the movable frame. In summary, the transport device can simultaneously realize the transport of test tubes and test tube racks through a set of structures, thereby making the structure of the solid sample testing equipment simpler and the manufacturing cost lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a transfer device for a test tube rack is provided for an embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the assembly of a movable claw and a movable rack in a transfer device for a test tube rack provided by an embodiment of the present utility model;

[0017] Figure 3 A schematic diagram of the structure of the test tube rack provided by the embodiment of the present invention in a state where the transfer device is holding a test tube;

[0018] Figure 4 A schematic diagram of the relative positional relationship between a lifting structure and a claw body in a transfer device for a test tube rack provided by an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of the relative positional relationship between another lifting structure and the claw body in the transfer device of the test tube rack provided by an embodiment of the present utility model;

[0020] Figure 6 A schematic structural diagram of a test tube rack provided in an embodiment of the present utility model;

[0021] Figure 7 This is a schematic structural diagram of another test tube rack provided by an embodiment of the present utility model.

[0022] Description of Reference Numerals

[0023] 10. Transfer device; 100. Frame; 200. Movable frame; 300. Movable claw; 310. Claw body; 320. Lifting structure; 20. Test tube rack; 21. Accommodating cavity; 22. Lifting hole; 221. Branch long hole; 23. Bracket hole; 30. Test tube. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] The various specific technical features in the various embodiments described in the specific implementation methods can be combined in various ways without contradiction. For example, different implementation methods can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the present invention will not be described separately.

[0026] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0027] In addition, it should be noted that the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the following description, the terms "first\second\..." involved are merely used to distinguish different objects and do not indicate that there is any similarity or connection between the objects. It should be understood that the directions described by the directional nouns such as "above", "below", "inside" and "outside" are all directions in normal use.

[0028] In the following specific embodiments, a test tube rack transfer device is used in an automated or semi-automated solid sample testing device to transfer test tubes and test tube racks between different testing stations. The application environment of the transfer device is exemplified below in conjunction with the solid sample testing steps.

[0029] During the solid sample testing process, it is necessary to place the test tube rack at the liquid injection station and load the test tubes containing the solid samples into the test tube rack, and then inject an acidic liquid into each test tube; after the acidic liquid is injected into each test tube, it is necessary to transport the test tube rack and the test tubes as a whole to the reaction station through the transport, where the test tubes are connected to the acid gas recovery device, where the solid samples in the test tubes react with the acidic liquid, and the acid gas volatilized during the reaction can be passed into the acid gas recovery device for recovery; wherein the transport device of the test tube rack is arranged between the liquid injection station and the reaction station, and is used to load the test tubes into the test tube rack located at the liquid injection station, and is also used to transport the test tube rack and the test tubes as a whole to the reaction station after the liquid injection device injects the acidic liquid into each test tube. The transport device of the test tube rack provided in the embodiment of the present application can simultaneously realize the function of loading the test tubes into the test tube rack and the function of transporting the test tube rack and the test tubes to the reaction station. The structure and function of the transport device of the test tube rack are exemplarily described below in conjunction with various embodiments.

[0030] In some embodiments, as Figure 1 As shown, the transfer device 10 includes: a frame 100, a movable frame 200 and a movable claw 300. The frame 100 is used to provide installation space for other structures of the transfer device, and the movable frame 200 is movably connected to the frame 100.

[0031] The movable claws 300 have at least three movable claws 300, and the collective midlines of at least three movable claws 300 are not located on the same straight line. Each movable claw 300 is slidably connected to the rack, and the movement direction of each movable claw 300 is used to make the movable claws 300 approach or move away from each other. By making the three non-collinear movable claws 300 approach each other, the test tube can be clamped, and by making the three non-collinear movable claws 300 move away from each other, the clamped test tube can be released. It can be understood that the clamping and release of the test tube can be achieved through the relative movement of the movable claws 300, and the movement of the movable rack 200 relative to the rack 100 can drive the overall movement of each movable claw 300, so that the clamped test tube can be transported between different positions, so that the test tube can be loaded into the test tube rack; at the same time, the movable claws 300 can also realize the overall transportation function of the test tube rack loaded with the test tube. Figure 2 , the structure of the movable claw 300 and the principle by which the movable claw 300 can realize the overall transport function of the test tube rack loaded with test tubes are described.

[0032] like Figure 2 As shown, each movable claw 300 includes: a claw body 310 and a lifting structure 320, the claw body 310 has a first end and a second end opposite to each other, the first end is slidably connected to the movable frame 200, and the claw body 310 is used to clamp the test tube; the lifting structure 320 is connected to the claw body 310 and is located at a position away from the first end of the claw body 310, and at least part of the lifting structure 320 extends out of the side wall of the claw body 310. It can be understood that the lifting structure 320 extends from the side wall of the claw body 310, thereby extending the whole The side wall of the claw body 310, or the lifting structure 320 extends from the second end of the claw body 310, and the extension direction of the lifting structure 320 is not parallel to the extension direction of the claw body 310, so that part of the structure of the lifting structure 320 extends out of the side wall of the claw body 310. By moving the lifting structure 320 to the bottom of the test tube rack and abutting against the bottom surface of the test tube rack, the test tube rack containing the test tube can be lifted as a whole. In this state, the movable claws 300 are driven to move as a whole by the movable rack 200, so that the test tube rack can be transported.

[0033] It should be noted that, depending on the different connection methods between the lifting structure 320 and the claw body 310, the way in which the lifting structure 320 moves to the bottom of the test tube rack is different. Taking the two cases where the lifting structure 320 is fixedly connected to the claw body 310 and the lifting structure 320 is rotatably connected to the claw body 310 as examples, the way in which the lifting structure 320 moves to the bottom of the test tube rack is exemplified. At the same time, for the sake of convenience of explanation, in the following embodiments, the side on which each movable claw 300 moves close to each other is called the approaching side of the claw body 310.

[0034] When the lifting structure 320 is fixedly connected to the claw body 310, in order to prevent the lifting structure 320 from affecting the clamping of the test tube, the lifting structure 320 is not located on the close side of the claw body 310. At the same time, the test tube rack is provided with a lifting hole for the lifting structure 320 to pass through. If the test tube rack needs to be lifted by the lifting structure, the movable frame 200 is controlled to drive the movable claws 300 to descend as a whole so that the lifting structures 320 of each movable claw 300 pass through the lifting hole and move to the bottom of the test tube rack. After the lifting structure 320 passes through the lifting hole, the claw body 310 is controlled to move relative to the movable frame 200 so that the lifting structure 320 moves outside the space surrounded by the outer contour of the lifting hole, so that the lifting structure 320 can abut against the bottom surface of the test tube rack. By driving the movable claws 300 to rise by the movable frame 200, the lifting structure 320 can abut against the bottom surface of the test tube rack and lift the test tube rack.

[0035] When the lifting structure 320 is rotatably connected to the claw body 310, if the test tube needs to be clamped by the claw body 310, the lifting structure 320 and the claw body 310 are rotated relative to each other so that the lifting structure is not located on the close side of the claw body 310, thereby clamping the test tube more reliably. If the test tube rack needs to be lifted by the lifting structure 320, the claw bodies 310 are controlled to move away from each other until the claw bodies 310 move to the outside of the edge of the test tube rack, and then the movable rack 200 is controlled to drive the movable claw 300 to move downward, so that the lifting structure 320 can move from the outside of the test tube rack edge, from the top of the test tube rack to the bottom of the test tube rack. After the lifting structure 320 moves to the bottom of the test tube rack, the lifting structure 320 is controlled to rotate relative to the claw body 310 and rotate the lifting structure 320 to the close side of the claw body 310. When the lifting structure 320 is in the upright position, the movable claws 300 are driven upward by the movable frame 200, so that the lifting structure 320 can abut against the bottom surface of the test tube rack and lift the test tube rack. It can be understood that by rotatably connecting the lifting structure 320 with the claw body 310, the lifting structure 320 can bypass the test tube rack from the side, thereby lifting the test tube rack without providing the test tube rack with an additional hole for the lifting structure 320 to pass through. That is, the test tube rack transfer device 10 can be applicable to a test tube rack with a lifting hole for the lifting structure 320 to pass through, and can also be applicable to a test tube rack without a lifting hole for the lifting structure 320 to pass through. For the sake of convenience, the following takes the application of the transfer device 10 to a test tube rack provided with a lifting hole as an example to further exemplify the structure of the transfer device 10.

[0036] Among them, the slidable connection between the movable claw 300 and the movable frame 200 can be achieved through any structure. Exemplarily, the movable frame 200 has a plurality of guide rails, and each movable claw 300 is respectively mounted on the outside of the slide rail to achieve a slidable connection with the movable frame 200. At the same time, each movable claw 300 is respectively connected to a linear motor, which drives the movable claw 300 to slide and provides a clamping force for the movable claw 300 when the movable claw 300 needs to clamp the test tube; Exemplarily, the movable frame 200 has a plurality of transmission screws, and each movable claw 300 is respectively mounted on the outside of the transmission screw, and the movable claw 300 abuts against the movable frame 200 to limit the rotational movement of the movable claw 300 relative to the movable frame 200. At the same time, each transmission screw is connected to a rotating motor, and by driving each transmission screw to rotate, each movable claw 300 can be driven to slide relative to the movable frame 200.

[0037] To sum up, the relevant technical solutions require the separate provision of a test tube transfer device and a test tube rack transfer device. The test tube rack transfer device 10 provided in this embodiment can simultaneously realize the transfer of test tubes and test tube racks through a set of structures. Compared with the relevant technologies, the test tube rack transfer device provided in this embodiment has richer functions, thereby making the structure of the solid sample testing equipment simpler and the manufacturing cost lower.

[0038] The present invention provides a transfer device for a test tube rack, which includes: a frame, a movable frame movably connected to the frame, and at least three movable claws slidably connected to the movable frame, wherein the number of movable claws is at least three and the at least three movable claws are arranged non-collinearly, and each movable claw can move closer to or farther away from each other by sliding relative to the movable frame; wherein the movable claw includes a claw body at one end slidably connected to the movable frame, and the movement of the claw body towards or away from each other can achieve the clamping or release of the test tube, so that the test tube can be placed in the test tube rack to achieve the test tube. Transport, the movable claw also includes a lifting structure connected to the claw body and located at a position away from the end where the claw body is connected to the movable frame. At least part of the lifting structure extends out of the side wall of the claw body. By moving the lifting structure to the bottom of the test tube rack, the lifting structure can be brought into contact with the bottom surface of the test tube rack to lift the test tube rack. In this state, the test tube rack can be transported by the movement of the movable frame. In summary, the transport device can simultaneously realize the transport of test tubes and test tube racks through a set of structures, thereby making the structure of the solid sample testing equipment simpler and the manufacturing cost lower.

[0039] In some embodiments, as Figure 2As shown, the lifting structure 320 is fixedly connected to the claw body 310, and the lifting structure 320 is not located on the approach side of the claw body 310. The approach side is the side that allows each movable claw 300 to move closer to each other. By arranging the lifting structure 320 on the non-approach side of the claw body 310, the movement interference between the lifting structure 320 and the test tube can be reduced when the test tube is clamped by the claw body 310, so that the side wall of the claw body 310 and the outer surface of the test tube have a larger contact area, so that the claw body 310 can clamp the test tube more reliably.

[0040] In some embodiments, as Figure 2 As shown, the lifting structure 320 extends from the side wall of the claw body 310 from the distal side of the claw body 310. The distal side is the side opposite to the proximal side, that is, the distal side is the side that makes each claw body 310 move away from each other. By arranging the lifting structure 320 on the distal side of the claw body 310, the possibility of movement interference between the lifting structure 320 and the test tube can be further reduced during the process of clamping the test tube by the claw body 310, thereby further improving the reliability of the test tube clamping. Moreover, when it is necessary to lift the test tube rack, after the lifting structure 320 passes through the lifting hole, the claw bodies 310 can be moved away from each other so that the lifting structure 320 can abut against the bottom surface of the test tube rack, thereby enabling the lifting structure 320 to lift the test tube rack. That is, it is only necessary to move the claw body 310 in one direction to achieve both clamping of the test tube and lifting of the test tube rack, thereby reducing the difficulty of controlling the movable claw 300.

[0041] The state of the movable claw 300 holding the test tube 30 is as follows: Figure 3 As shown, by moving the movable claws 300 closer to each other, the test tube 30 can be clamped. After the test tube 30 is moved to the target position by the movable frame 200, the movable claws 300 are moved away from each other to release the clamping of the test tube 30, thereby realizing the transportation of the test tube 30.

[0042] Optional, such as Figure 4 As shown, the claw body 310 can be moved in a first direction (the first direction is as shown in FIG. Figure 4 The claw bodies 310 move relative to the movable frame 200 in the first direction and move closer to or farther from each other. At the same time, the claw bodies 310 can also move in the second direction (the second direction is as shown in FIG. Figure 4The lifting structure 320 is moved relative to the movable frame 200 in the second direction (as indicated by the dotted arrow in the middle direction), the second direction is perpendicular to the first direction, and the lifting structure extends out of the side wall of the claw body 310 along the second direction. After the lifting structure 320 passes through the lifting hole, the claw body 310 is controlled to move relative to the movable frame 200 along the second direction, so that the lifting structure 320 moves to the outside of the space surrounded by the outer contour of the lifting hole, so that the lifting structure 320 can abut against the bottom surface of the test tube rack, and then the lifting structure 320 can lift the test tube rack.

[0043] In some embodiments, as Figure 5 As shown, the lifting structure 320 is movably connected to the claw body 310. After the movable frame 200 drives the lifting structure 320 to pass through the lifting hole of the test tube rack, the lifting structure 320 can move relative to the claw body 310, so that the lifting structure 320 moves to the outside of the space surrounded by the outer contour of the lifting hole, so that the lifting structure 320 can abut against the bottom surface of the test tube rack, and then the lifting structure 320 can lift the test tube rack. It can be understood that by enabling the lifting structure 320 to move relative to the claw body 310, when the posture of the lifting structure 320 needs to be adjusted, there is no need to move the position of the movable claw 300 as a whole, and only the lifting structure 320 needs to move relative to the claw body 310, thereby making the movement control of the lifting structure 320 simpler.

[0044] Optionally, the lifting structure 320 can slide relative to the claw body 310, and the sliding direction of the lifting structure 320 is perpendicular to the sliding direction of the claw body 310 relative to the movable frame 200. After the lifting structure 320 passes through the lifting hole of the test tube rack, the lifting structure 320 slides relative to the claw body 310, so that the lifting structure 320 moves to the outside of the space surrounded by the outer contour of the lifting hole, so that the lifting structure 320 can abut against the bottom surface of the test tube rack, and then the lifting structure 320 can lift the test tube rack.

[0045] Optional, such as Figure 5 As shown, the lifting structure 320 is rotatably connected to the claw body 310, and the rotation axis of the lifting structure 320 is parallel to the extension direction of the rotating body 310 (the rotation direction of the lifting structure 310 is as shown in FIG. Figure 5 As shown by the middle arrow, after the lifting structure 320 passes through the lifting hole of the test tube rack, the lifting structure 320 is controlled to rotate around the extension direction of the claw body 310, so that the length direction of the lifting structure 320 and the length direction of the lifting hole form a certain angle, so that the lifting structure 320 moves to the outside of the space surrounded by the outer contour of the lifting hole, so that the lifting structure 320 can abut against the bottom surface of the test tube rack, and then the lifting structure 320 can lift the test tube rack.

[0046] In some embodiments, as Figure 2As shown, at least four movable claws 300 are arranged symmetrically about the center, and the movement directions of at least two movable claws 300 are perpendicular. It can be understood that there are at least four movable claws 300 among all the movable claws 300 arranged in a cross shape, and the four movable claws 300 are arranged opposite each other in pairs, so that when the test tube needs to be transported, a clamping force can be applied to the test tube from two perpendicular directions through two pairs of claw bodies 310 arranged opposite each other, so as to clamp the test tube more reliably. Moreover, when the test tube rack needs to be transported, a lifting force can be applied to the test tube rack from two perpendicular directions through two pairs of symmetrically arranged lifting structures 320, so as to lift the test tube rack more reliably.

[0047] In some embodiments, as Figure 2 As shown, the lifting structure 320 is located at the second end of the claw body, that is, the lifting structure 320 is located at the end of the claw body 310 away from the movable frame 200, thereby fully utilizing the length direction dimension of the claw body 310 to make the lifting structure 320 closer to the test tube rack, thereby shortening the vertical stroke of the lifting structure 320 when it is necessary to pass the lifting structure 320 through the lifting hole of the test tube rack.

[0048] The embodiment of the present invention further provides a test tube rack, which is applied to a test device for solid samples and is used to store test tubes containing solid samples. The structure of the test tube rack is further exemplified below with reference to the accompanying drawings.

[0049] In some embodiments, as Figure 5 As shown, the test tube rack 20 has a plurality of spaced accommodating cavities 21, each of which is used to accommodate a test tube. When the test tube rack 20 is located at the injection station and no test tube has been placed in it, as shown in the attached manual, Figures 1 to 5 The transfer device 10 shown in any one of the figures can place the test tubes into each accommodating cavity 21; at the same time, the test tube rack 20 also has a lifting hole 22, which is spaced apart from the accommodating cavity 21. The lifting hole 22 is used for allowing the lifting structure 320 of the transfer device 10 to pass through, so that the lifting structure 320 can be aligned with the bottom surface of the test tube rack 20 and lift the test tube rack 20, thereby completing the transfer of the test tube rack 20.

[0050] Among them, the depth direction of the accommodating cavity 21 is parallel to the depth direction of the lifting hole 22, that is, the direction in which the transfer device 10 inserts the test tube into the accommodating cavity 21 is the same as the direction in which the lifting structure 320 of the transfer device 10 passes through the lifting hole 22, thereby facilitating the control of the transfer device 10.

[0051] In some embodiments, as Figure 6As shown, in the depth direction of the lifting hole 22, the outer contour of the projection of the lifting hole 22 on the outer surface of the test tube rack 20 is centrosymmetric with respect to the geometric center point of the test tube rack 20. It can be understood that by forming the outer contour of the lifting hole 22 into a figure centrosymmetric with respect to the geometric center point of the test tube rack 20, when each lifting structure 320 passes through the lifting hole 22 and lifts the test tube rack 20, the additional torque generated at the geometric center point of the test tube rack 20 by the lifting force applied by each lifting structure 320 on the test tube rack 20 can offset each other, thereby reducing the possibility of the test tube rack 20 being deflected due to the additional torque when lifting the test tube rack 20, thereby improving the stability of the lifting of the test tube rack 20. Optionally, as Figure 6 As shown, there are multiple lifting holes 22, each lifting hole 22 is spaced around the geometric center point of the test tube rack 20 and arranged symmetrically with respect to the geometric center point. One lifting hole 22 is used for a lifting structure 320 of a movable claw 300 to pass through; optionally, as Figure 7 As shown, the number of the lifting hole 22 is one, and the outer contour of the lifting hole 22 is a shape that is centrally symmetrical with respect to the geometric center point of the test tube rack 20. The lifting hole 22 is used for the lifting structure 320 of each movable claw 300 to pass through. For example, Figure 7 As shown, the lifting hole 22 includes two interconnected branch long holes 221 , the extension directions of the two branch long holes 221 are perpendicular, and the geometric center points of the two branch long holes 221 coincide with the geometric center point of the test tube rack 20 .

[0052] In some embodiments, as Figure 6 As shown, the test tube rack 20 also has a bracket hole 23, and the bracket hole 23 is spaced apart from the lifting hole 22. By setting the bracket hole 23, the test tube rack 20 can be lifted by the bracket. Specifically, the bracket is used to extend into the bottom of the test tube rack 20 from the side and bottom of the test tube rack 20, and the bracket also has a positioning column for inserting into the bracket hole 23. After the positioning column is inserted into the bracket hole 23, the bracket is lifted, so that the test tube rack 20 can be lifted by the bracket. It can be understood that by setting the lifting hole 22 and the bracket hole 23, the test tube rack 20 can be lifted. The rack 20 can be lifted in a variety of ways. If there is a large space at the bottom of the test tube rack 20, the test tube rack 20 can be lifted by a bracket, that is, the bracket is extended from the bottom of the test tube rack 20 to the bottom of the test tube rack 20 to achieve the lifting of the test tube rack 20. If there is insufficient space at the bottom of the test tube rack 20, the test tube rack 20 can be lifted by the transfer device 10, that is, the lifting structure 320 of the transfer device 10 is passed through the lifting hole 22 from above to achieve the lifting of the test tube rack 20.

[0053] Moreover, the distance between the bracket hole 23 and the geometric center point of the test tube rack 20 is greater than the distance between the lifting hole 22 and the geometric center point of the test tube rack 20. It can be understood that, compared with the lifting hole 22, the bracket hole 23 is closer to the edge of the test tube rack 20. Therefore, when the test tube rack 20 is lifted by the bracket, the distance that the bracket needs to penetrate into the bottom of the test tube rack 20 can be reduced, which facilitates the bracket to lift the test tube rack 20.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A test tube rack transport device, characterized in that: The transfer device comprises: frame; a movable frame, movably connected to the frame; at least three movable claws, wherein the geometric center points of at least three movable claws are not located on the same straight line, each movable claw is slidably connected to the movable frame, and the movement direction of each movable claw is used to move the movable claws closer to or farther away from each other; Wherein, each of the movable claws comprises: a claw body, one end of which is slidably connected to the movable frame; The lifting structure is connected to the claw body and is located at a position of the claw body away from the one end, and at least a portion of the lifting structure extends out of the side wall of the claw body.

2. The transfer device according to claim 1, characterized in that The lifting structure is fixedly connected to the claw body, and the lifting structure is not located on the approach side of the claw body. The approach side is the side that enables the movable claws to move closer to each other.

3. The transfer device according to claim 2, characterized in that The lifting structure extends from the distal side of the claw body to the side wall of the claw body, and the distal side is a side opposite to the proximal side.

4. The transfer device according to claim 1, characterized in that The lifting structure is movably connected to the claw body.

5. The transfer device according to claim 1, characterized in that: The lifting structure is rotatably connected to the claw body, and a rotation axis of the lifting structure is parallel to an extension direction of the claw body.

6. The transfer device according to any one of claims 1 to 5, characterized in that At least four of the movable claws are arranged symmetrically with respect to the center, wherein the movement directions of at least two of the movable claws are perpendicular.

7. The transfer device according to any one of claims 1 to 5, characterized in that The lifting structure is located at the other end of the claw body opposite to the one end.

8. A test tube rack, characterized in that: The test tube rack has a plurality of spaced-apart accommodating cavities for accommodating test tubes, and the test tube rack further has a lifting hole for allowing the lifting structure of the transfer device according to any one of claims 1 to 7 to pass through; Wherein, the depth direction of the accommodating cavity is parallel to the depth direction of the lifting hole.

9. The test tube rack according to claim 8, characterized in that: In the depth direction of the lifting hole, the outer contour of the projection of the lifting hole on the outer surface of the test tube rack is centrosymmetric with respect to the geometric center point of the test tube rack.

10. The test tube rack according to claim 8, characterized in that: The test tube rack further has a bracket hole, which is spaced apart from the lifting hole, and the distance between the bracket hole and the geometric center point of the test tube rack is greater than the distance between the lifting hole and the geometric center point of the test tube rack.

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