A transfer device and an analyzer

Abstract

The embodiment of the present invention relates to the technical field of detection equipment, and in particular discloses a transfer device and an analyzer, including a base, a guide mechanism, a drive mechanism and a clamping mechanism, wherein the guide mechanism is arranged on the base, the drive mechanism is arranged on the base, the clamping mechanism is installed on the drive mechanism, the clamping mechanism is used to grasp and place a sample rack, the drive mechanism is used to drive the clamping mechanism to realize three-axis movement, and under the drive of the drive mechanism, the clamping mechanism can grasp the sample rack from the outside and place the sample rack at one end of the guide mechanism, and the clamping mechanism pushes the sample rack to move along the guide mechanism. In the above manner, the present invention can be applied to more usage situations.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of detection equipment, and in particular to a transfer device and an analyzer. Background Art

[0002] When performing batch sample analysis, multiple samples are generally placed in a sample rack, and the same sample often needs to be tested by multiple analytical instruments for different items. In order to reduce labor costs and improve analysis efficiency, a track translation method is currently used to transfer sample racks between two analytical instruments. For example, Chinese invention patent No. 201710124451.X discloses a sample rack transfer device, including a transfer plate, an upper plate mechanism, a first pushing mechanism, a rotating mechanism, a second pushing mechanism and a lower plate mechanism. The upper plate mechanism pushes the sample rack from the first analytical instrument to the transfer plate, the sample rack rotating mechanism realizes the sample rack steering, the second pushing mechanism pushes the steering sample rack to move on the transfer plate and then pushes it to the lower plate mechanism, and the lower plate mechanism pushes the sample rack to the second analytical instrument.

[0003] During the process of implementing the embodiments of the present invention, the inventors of the embodiments of the present invention found that the track translation method requires that the planes on which the sample racks of the two analytical instruments are placed need to be maintained at the same height, and that the two analytical instruments used therewith need to be provided with sample rack entrances and exits corresponding to the transfer device, which has certain limitations in use. Summary of the invention

[0004] The present invention provides a transfer device and an analyzer, which can be applied in more different practical use situations.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a transfer device, including a base, a guide mechanism, a driving mechanism and a clamping mechanism, wherein the guide mechanism is arranged on the base; the driving mechanism is arranged on the base; the clamping mechanism is arranged on the driving mechanism, the clamping mechanism is used to grasp and place the sample rack, and the driving mechanism is used to drive the clamping mechanism to realize three-axis movement; under the drive of the driving mechanism, the clamping mechanism can grasp the sample rack from the outside and place the sample rack at one end of the guide mechanism, and the clamping mechanism pushes the sample rack to move along the guide mechanism.

[0006] Optionally, the clamping mechanism includes a mounting seat, a motor, a driving shaft, a fixed clamp and a movable clamp, the mounting seat being fixed to the driving mechanism, the motor being arranged on the mounting seat, the first end of the driving shaft being connected to the motor, the end face of the second end of the driving shaft being provided with a driving protrusion, the driving protrusion being eccentrically arranged relative to the driving shaft, the fixed clamp is fixed to the mounting seat, the movable clamp is slidably arranged on the mounting seat, and the fixed clamp and the movable clamp are arranged relative to each other, the fixed clamp and the movable clamp at least partially protrude from the mounting seat, the movable clamp is provided with a driving groove, the driving protrusion is inserted into the driving groove, and when the motor drives the driving shaft to rotate, the movable clamp moves in a direction away from or close to the fixed clamp driven by the driving protrusion.

[0007] Optionally, the transfer device also includes a clamping protrusion and a limiting assembly, both of which are arranged on a surface of the movable clamping plate facing the fixed clamping plate, the clamping protrusion is used to be inserted into the sample rack, and the limiting assembly is used to abut against the sample rack to limit the inclination angle of the sample rack.

[0008] Optionally, the clamping protrusion includes a first clamping protrusion and a second clamping protrusion, and the first clamping protrusion and the second clamping protrusion are arranged side by side on a surface of the movable clamping plate facing the fixed clamping plate.

[0009] Optionally, the limiting assembly includes a mounting portion and a limiting arm, a surface of the mounting portion is affixed to a surface of the movable clamping plate facing away from the fixed clamping plate, a first end of the limiting arm is connected to an end of the mounting portion, and a second end of the limiting arm passes over one side of the movable clamping plate and protrudes out of a surface of the movable clamping plate facing the fixed clamping plate.

[0010] Optionally, the limiting arm is provided with a strip hole, and the movable clamping plate is provided with a screw hole;

[0011] The limiting assembly also includes a bolt, which passes through the strip hole and is screwed into the screw hole.

[0012] Optionally, the movable clamp is provided with a first sliding hole and a second sliding hole;

[0013] The mounting seat includes a first mounting plate, a second mounting plate, a third mounting plate, a first mounting shaft and a second mounting shaft, one end of the first mounting plate and one end of the second mounting plate are both connected to the first surface of the third mounting plate, and the first mounting plate and the second mounting plate are arranged opposite to each other, the fixed clamping plate is fixed to the surface of the first mounting plate facing the second mounting plate, one end of the first mounting shaft is connected to the first mounting plate, the other end of the first mounting shaft is connected to the second mounting plate after passing through the first sliding hole, one end of the second mounting shaft is connected to the first mounting plate, the other end of the second mounting shaft is connected to the second mounting plate after passing through the second sliding hole, the first mounting shaft is parallel to the second mounting shaft, and the movable clamping plate can slide along the first mounting shaft and the second mounting shaft.

[0014] Optionally, the driving mechanism includes a first translation unit, a second translation unit and a lifting unit, the first translation unit is installed on the base, the second translation unit is slidably set on the lifting unit, the lifting unit is slidably set on the first translation unit, the clamping mechanism is installed on the second translation unit, and the movement directions of the first translation unit, the second translation unit and the lifting unit are perpendicular to each other.

[0015] Optionally, the guide mechanism is a slide groove which is arranged on the base and is open at both ends.

[0016] According to one aspect of an embodiment of the present invention, there is provided an analyzer comprising the above-mentioned transfer device.

[0017] The beneficial effects of the embodiments of the present invention are as follows: different from the prior art, the embodiments of the present invention adopt a method of clamping the sample rack from the analytical instrument by the cooperation between the driving mechanism and the clamping mechanism, and the driving mechanism can drive the clamping mechanism to realize three-axis movement. Therefore, the driving mechanism and the clamping mechanism can cooperate to clamp the sample rack from analytical instruments at different heights to the guide mechanism, and at the same time, there is no need to open an exit on one side of the analyzer for the sample rack to leave the analyzer, which can adapt to more usage conditions; the clamping mechanism places the sample on the guide mechanism, and uses the driving mechanism to promote the transfer of the sample rack, so that the driving mechanism only needs to realize linear movement, and there is no need to increase rotational movement in order to avoid interference between the driving mechanism and the clamping mechanism and the analytical instrument housing, thereby simplifying the control process and shortening the maximum distance that the driving mechanism moves from the first analytical instrument to the second analytical instrument, saving working space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0019] Figure 1 is a stereoscopic diagram of a transfer device provided by an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of another angle of the stereogram shown;

[0021] Figure 3 yes Figure 1 A partial exploded view of the transfer device shown;

[0022] Figure 4 yes Figure 1 Another partial exploded view of the transfer device shown;

[0023] Figure 5 yes Figure 1 Another partial exploded view of the transfer device shown;

[0024] Figure 6 yes Figure 5 a left side view of the stereogram shown;

[0025] Figure 7 yes Figure 5 a right side view of the stereogram shown;

[0026] Figure 8 yes Figure 1 A perspective view of the transfer device shown;

[0027] Fig. 9 yes Figure 1 Another partial exploded view of the transfer device is shown. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0030] See also Figure 1 The transfer device 1 includes a base 10, a guide mechanism 20, a clamping mechanism 30 and a driving mechanism 40. The base 10 is used to carry the guide mechanism 20, the clamping mechanism 30 and the driving mechanism 40. The guide mechanism 20 is arranged on the base 10, and the clamping mechanism 30 is arranged on the driving mechanism 40. The driving mechanism 40 is arranged on the base 10, and is used to drive the clamping mechanism 30 to realize three-axis movement. The clamping mechanism 30 is used to grab the sample rack from the outside and move to the guide mechanism 20 under the drive of the driving mechanism 40, and place the sample rack at one end of the guide mechanism 20. When the sample rack stays on the guide mechanism 20 and completes the function to be performed, the clamping mechanism 30 can push the sample rack to move to the other end of the guide mechanism 20 under the drive of the driving mechanism 40, so that the sample rack enters the next station.

[0031] See also Figure 2 The base 10 includes a main body 102, a mounting bracket 104 and a support leg 106. There are two mounting brackets 104, which are arranged side by side on the bottom surface of the main body 102 and are parallel to each other. There are four support legs 106, and every two support legs 106 are arranged side by side on the same mounting bracket 104 to support the main body 102.

[0032] See also Figure 3 In this embodiment, the guide mechanism 20 includes a first baffle 202, a second baffle 204 and a supporting plate 206. One end of the first baffle 202 is mounted on the upper surface of the base body 102, and one end of the second baffle 204 is mounted on the upper surface of the base body 102. The first baffle 202 is perpendicular to the base 10, and the second baffle 204 is perpendicular to the base 10. The first baffle 202 and the second baffle 204 are arranged opposite to each other, and the first baffle 202 is parallel to the second baffle 204. One end of the supporting plate 206 is connected to a surface of the first baffle 202 facing the second baffle 204, and the other end of the supporting plate 206 is connected to a surface of the second baffle 204 facing the first baffle 202. The first baffle 202, the second baffle 204 and the supporting plate 206 form an "H" shape as a whole, and the upper half of the "H" shape structure is opened as a slide groove for placing the sample rack.

[0033] It is understandable that the guide mechanism 20 is not limited to being a slide groove with openings at both ends, for example, it can be two rows of discontinuous protrusions arranged side by side on a platform.

[0034] See also Figure 1 and Figure 4-7 , the clamping mechanism 30 includes a mounting seat 301, a motor 302, a drive shaft 303, a fixed clamp plate 304, a movable clamp plate 305 and a push rod 306. The motor 302 is mounted on the mounting seat 301, and one end of the drive shaft 303 is connected to the motor 302, and the motor 302 drives the drive shaft 303 to rotate. The fixed clamp plate 304 and the movable clamp plate 305 are mounted on the mounting seat 301, and the motor 302 and the drive shaft 303 provide driving force for the movable clamp plate 305, so that the fixed clamp plate 304 and the movable clamp plate 305 are close to each other or away from each other, thereby realizing the grasping function. The push rod 306 is mounted on the mounting seat. When the sample rack is located at the guide mechanism 20, the push rod 306 is used to abut against the surface of the sample rack, and push the sample rack to move under the drive of the drive mechanism 40.

[0035] The mounting base 301 includes a first mounting plate 3011, a second mounting plate 3012, a third mounting plate 3013, a first mounting shaft 3014, and a second mounting shaft 3015. One end of the first mounting plate 3011 and one end of the second mounting plate 3012 are both connected to the first surface of the third mounting plate 3013, and the first mounting plate 3011 and the second mounting plate 3012 are both perpendicular to the first surface of the third mounting plate 3013. The first mounting plate 3011 and the second mounting plate 3012 are arranged opposite to each other, and the first mounting plate 3011 is parallel to the second mounting plate 3012. One end of the first mounting shaft 3014 is connected to the first mounting plate 3011, and the other end of the first mounting shaft 3014 is connected to the second mounting plate 3012. One end of the second mounting shaft 3015 is connected to the first mounting plate 3011, and the other end of the second mounting shaft 3015 is connected to the second mounting plate 3012. The first mounting shaft 3014 is parallel to the second mounting shaft 3015.

[0036] The motor 302 is disposed on a surface of the third mounting plate 3013 facing away from the first mounting axis 3014 .

[0037] The driving shaft 303 includes a shaft body 3032 and a driving protrusion 3034. The third mounting plate 3013 is provided with a circular hole 3013a, and the first end of the driving shaft 303 passes through the circular hole 3013a and is connected to the motor 302. The driving protrusion 3034 is a hollow cylinder, which is arranged on the second end surface of the driving shaft 303, and the driving protrusion 3034 is eccentrically arranged relative to the driving shaft 303.

[0038] The first end of the fixing clamp 304 is provided with a first U-shaped hole 3041 and a second U-shaped hole 3042, the first U-shaped hole 3041 and the second U-shaped hole 3042 are arranged side by side, and the first U-shaped hole 3041 is parallel to the second U-shaped hole 3042. The first U-shaped hole 3041 is used to clamp the first mounting shaft 3014, and the second U-shaped hole 3042 is used to clamp the second mounting shaft 3015, so that the first end of the fixing clamp 304 is clamped on the first mounting shaft 3014 and the second mounting shaft 3042. One side of the fixing clamp 304 is closely attached to the side of the first mounting plate 3011 facing the second mounting plate 3012, and the first end of the fixing clamp 304 and the first mounting plate 3011 are provided with corresponding bolt mounting holes, and the first end of the fixing clamp 304 is fixed to the first mounting plate 3011 by bolt fastening, and the second end of the fixing clamp 304 protrudes from the mounting seat 301 in a direction away from the third mounting plate 30.

[0039] In this embodiment, the movable clamping plate 305 is provided with a first sliding hole 3051, a second sliding hole 3052, a driving groove 3053, a first clamping protrusion 3054, a second clamping protrusion 3055, and a stop assembly 3056. The first sliding hole 3051 and the second sliding hole 3052 are arranged side by side at the first end of the movable clamping plate 305, the first mounting shaft 3014 passes through the first sliding hole 3051, and the second mounting shaft passes through the second sliding hole 3052. The movable clamping plate 305 can slide between the first mounting plate 3011 and the second mounting plate 3012 along the first mounting shaft 3014 and the second mounting shaft 3015, and the second end of the movable clamping plate 305 protrudes from the mounting seat 301 in a direction away from the third mounting plate 30. The driving groove 3053 is a strip-shaped groove, which is arranged on the second end surface of the movable clamping plate 305. The driving groove 3053 is perpendicular to the first mounting axis 3014 along the direction from one end to the other end. The driving protrusion 3034 of the driving shaft 303 can be inserted into the driving groove 3053. When the motor 302 drives the driving shaft 303 to rotate forward or reverse, the driving protrusion 3034 performs forward or reverse circular motion. At this time, the driving protrusion 3034 performs forward or reverse linear motion between the two ends of the driving groove 3053, thereby driving the movable clamping plate 305 to perform forward or reverse linear motion along the axial direction of the first mounting axis 3014 and the second mounting axis 3015, so that the fixed clamping plate 304 and the movable clamping plate 305 are close to each other or away from each other, thereby realizing the function of the clamping mechanism 30 to grab or release the sample clamp. The first clamping protrusion 3054 and the second clamping protrusion 3055 are both strip-shaped protrusions, and the first clamping protrusion 3054 and the second clamping protrusion 3055 are arranged side by side on the surface of the second end of the movable clamping plate 305 facing the fixed clamping plate 304, and the first clamping protrusion 3054 is parallel to the second clamping protrusion 3055. When the movable clamping plate 305 slides toward the fixed clamping plate 304 until the sample holder is clamped, the first clamping protrusion 3054 and the second clamping protrusion 3055 are inserted into the strip-shaped holes on the sample clamp, and the clamping mechanism 30 buckles the sample holder, thereby preventing the sample holder from being separated from the clamping mechanism 30. The limiting assembly 3056 includes a mounting portion 3056a, a first strip hole 3056b, a second strip hole 3056c and a limiting arm 3056d. The first strip hole 3056b and the second strip hole 3056c are arranged side by side on the mounting portion 3056a, and the first strip hole 3056b is parallel to the second strip hole 3056c. The direction from the first end of the first strip hole 3056b to the second end of the first strip hole 3056b is perpendicular to the direction from the first end of the movable clamping plate 305 to the second end of the movable clamping plate 305. One surface of the mounting portion 3056a is attached to a surface of the movable clamping plate 305 away from the fixed clamping plate 304, the first end of the limiting arm 3056d is connected to one end of the mounting portion 3056a, and the second end of the limiting arm 3056d passes over one side of the movable clamping plate 305 and then protrudes out of a surface of the movable clamping plate 305 facing the fixed clamping plate 304.When the mounting part 3056a is moved along the first end of the first strip hole 3056b toward the second end of the first strip hole 3056b, the distance between the limiting arm 3056d and one side of the movable clamping plate 305 increases, and vice versa. Two screw holes corresponding to the first strip hole 3056b and the second strip hole 3056c are arranged side by side on the movable clamping plate 305, and the mounting part 3056a can be fixed on the movable clamping plate 305 by screwing. At present, the analyzer with automatic sampling function on the market is generally provided with a limiting protrusion on the edge of the table where the sample rack is placed. When the sample rack is placed in the analyzer, the limiting protrusion is inserted into the limiting groove opened at one end of the sample rack, and the sample rack cannot be lifted vertically upward at this time. In order to cope with this situation, the transfer device 1 provided in the embodiment of the present invention is provided with a clamping protrusion and a limiting assembly 3056 on the movable clamping plate 305. When the clamping mechanism 30 clamps one end of the sample rack and the clamping mechanism 30 moves vertically upward under the drive of the driving mechanism 40, under the action of gravity, the end of the sample rack away from the clamping mechanism 30 tilts downward, and the end close to the clamping mechanism 30 tilts upward. As the upward movement distance of the clamping mechanism 30 increases, the inclination angle of the sample rack gradually increases until the limiting groove of the sample rack is automatically separated from the limiting protrusion of the analyzer. When the sample rack is tilted to a certain angle, the second end of the limiting arm 3056d abuts against the sample rack to prevent the sample rack from continuing to tilt. By adjusting the distance between the limiting arm 3056d and one side of the movable clamping plate 305, the tilt angle of the sample rack can be changed. When the distance between the limiting arm 3056d and one side of the movable clamping plate 305 is larger, the tilt angle of the sample rack is larger; when the distance between the limiting arm 3056d and one side of the movable clamping plate 305 is smaller, the tilt angle of the sample rack is smaller.

[0040] It is understandable that in some other embodiments, the movable clamping plate 305 is not limited to being provided with the first clamping protrusion 3054 and the second clamping protrusion 3055, and only the first clamping protrusion 3054 may be retained, or a greater number of clamping protrusions may be provided.

[0041] The push rod 306 includes a mounting block 3062, a connecting rod 3064 and a contact rod 3066. The mounting block 3062 is arranged on a surface of the third mounting plate 3013 facing the motor 302. The first end of the connecting rod 3062 is connected to the mounting block 3062. The connecting rod 3064 is perpendicular to the mounting block 3062. The second end of the connecting rod 3064 is connected to one end of the contact rod 3066.

[0042] See also Figure 1 , Figure 8 and Fig. 9The driving mechanism 40 includes a first translation unit 402, a lifting unit 404 and a second translation unit 406. The first translation unit 402 is mounted on the base 10. The lifting unit 404 is slidably disposed on the first translation unit 402 and can perform linear motion in a direction parallel to the base 10. The second translation unit 406 is slidably disposed on the lifting unit 404 and can perform linear motion in a direction perpendicular to the base 10. The clamping mechanism 30 is slidably mounted on the second translation unit 406 and can perform linear motion in a direction parallel to the base 10, and the movement directions of the clamping mechanism 30 and the lifting unit 404 are perpendicular to each other.

[0043] The first translation unit 402 includes a base frame 4021, a first slideway 4022, a first slide rail 4023, a second slide rail 4024, a first driving wheel 4025, a first motor 4026, a first driven wheel 4027, a first synchronous belt 4028, a first connecting block first slider 4029, a second slider 4030, a first fixing plate 4031 and a first connecting block 4032. The base frame 4021 is arranged on the main body 102 of the base 10, the first slideway 4022 is arranged on the base frame 4021, the first slide rail 4023 and the second slide rail 4024 are arranged side by side on the first slideway 4022. The first motor 4026 is arranged at the first end of the first slideway 4022, the first driving wheel 4025 is connected to the first motor 4026, the first driven wheel 4027 is arranged at the second end of the first slideway 4022, and the first driving wheel 4025 and the first driven wheel 4027 are connected by the first synchronous belt 4028. There are two first sliders 4029, which are arranged in parallel on one side of the first fixed plate 4031 facing the first slideway 4022, and there are two second sliders 4030, which are arranged in parallel on the other side of the first fixed plate 4031 facing the first slideway 4022. The lifting unit 404 is arranged on the surface of the first fixed plate 4031 facing away from the first slideway 4022, and the lifting unit 404 is slidably arranged on the first translation unit 402 by the mutual cooperation of the first slider 4029 and the first slideway 4023, and the mutual cooperation of the second slider 4030 and the second slideway 4024. The first connecting block 4032 is arranged on the surface of the first fixed plate 4031 facing the first slide 4022, and one end of the first connecting block 4032 is fixed on the first synchronous belt 4028. When the first motor 4026 drives the first driving wheel 4025 to rotate, the first synchronous belt 4028 starts to move, and at the same time drives the first fixed plate 4031 to move through the first connecting block 4032, thereby driving the lifting unit 404 to move on the first slide 4031.

[0044] The lifting unit 404 includes a mounting member 4041, a second slide 4042, a third slide rail 4043, a fourth slide rail 4044, a second driving wheel 4045, a second motor 4046, a second driven wheel 4047, a second synchronous belt 4048, a third slider 4049, a fourth slider 4050, a second fixed plate 4051, and a second connecting block 4052. The mounting member 4041 is disposed on the first fixed plate 4041, a first end surface of the second slide 4042 is connected to the mounting member 4041, the second slide 4042 is perpendicular to the base 10, and the third slide rail 4043 and the fourth slide rail 4044 are disposed side by side on the second slide 4042. The second motor 4046 is disposed at the first end of the second slide 4042, the second driving wheel 4045 is connected to the second motor 4046, the second driven wheel 4047 is disposed at the second end of the second slide 4042, and the second driving wheel 4045 and the second driven wheel 4047 are connected by a second synchronous belt 4048. There are two third sliders 4049, which are arranged in parallel on one side of the second fixed plate 4051 facing the surface of the second slide 4042, and there are two fourth sliders 4050, which are arranged in parallel on the other side of the second fixed plate 4051 facing the surface of the second slide. The second translation unit 406 is disposed on the surface of the second fixed plate facing away from the second slide, and the third slider cooperates with the third slide rail, and the fourth slider cooperates with the fourth slide rail, so that the second translation unit 406 can be slidably disposed on the lifting unit 404. The second connecting block 4052 is arranged on the surface of the second fixed plate 4051 facing the second slide 4042, and one end of the second connecting block 4052 is fixed on the second synchronous belt 4048. When the second motor 4046 drives the second driving wheel 4045 to rotate, the second synchronous belt 4048 starts to move, and at the same time drives the second fixed plate 4051 to move through the second connecting block 4052, thereby driving the second translation unit 406 to move on the second slide 4042.

[0045] The second translation unit 406 includes a third slideway 4061, a fifth slide rail 4062, a sixth slide rail 4063, a third driving wheel 4064, a third motor 4065, a third driven wheel 4066, a third synchronous belt 4067, a fifth slider 4068, a sixth slider 4069, a third fixing plate 4070, and a third connecting block 4071. The first end of the third slideway 4061 is arranged on the surface of the second fixing plate 4051 facing away from the second slideway 4042, the third slideway 4061 is perpendicular to the first slideway 4022 and the second slideway 4042, and the fifth slide rail 4062 and the sixth slide rail 4063 are arranged side by side on the third slideway 4061. The third motor 4065 is disposed at the first end of the third slideway 4061, the third driving wheel 4064 is connected to the third motor 4065, the third driven wheel 4066 is disposed at the second end of the third slideway 4061, and the third driving wheel 4064 and the third driven wheel 4066 are connected by a third synchronous belt 4067. There are two fifth sliders 4068, which are arranged in parallel on one side of the third fixed plate 4070 facing the surface of the third slideway 4061, and there are two sixth sliders 4069, which are arranged in parallel on the other side of the third fixed plate 4070 facing the surface of the third slideway 4061. One end of the third fixed plate 4070 is connected to the clamping mechanism 30, and the fifth slider 4068 cooperates with the fifth slideway 4062, and the sixth slider 4069 cooperates with the sixth slideway 4063, so that the clamping mechanism 30 can be slidably disposed on the second translation unit 404. The third connecting block 4071 is arranged on the surface of the third fixed plate 4070 facing the third slide 4061, and one end of the third connecting block 4071 is fixed on the third synchronous belt 4067. When the third motor 4065 drives the third driving wheel 4064 to rotate, the third synchronous belt 4067 starts to move, and at the same time drives the third fixed plate 4070 to move through the third connecting block 4071, thereby driving the clamping mechanism 30 to move on the third slide 4061.

[0046] The first translation unit 402 , the lifting mechanism 404 , and the second translation unit 406 cooperate with each other to drive the clamping mechanism 30 to perform three-axis motion.

[0047] When it is necessary to transfer the sample rack from one analyzer to another analyzer, first, the clamping mechanism 30 is moved to the specified position under the drive mechanism 40, and the first clamping protrusion 3054 and the second clamping protrusion 3055 correspond to the two grooves placed on the first sample rack. Secondly, under the drive of the motor 302, the movable clamping plate 305 slides toward the fixed clamping plate 304 until the first clamping protrusion 3054 and the second clamping protrusion 3055 are completely inserted into the two grooves at one end of the sample rack. Thirdly, the clamping mechanism 30 moves vertically upward under the drive mechanism 40 to lift the sample rack to a certain height. At this time, under the action of gravity, the end of the sample rack away from the clamping mechanism 30 tilts downward, and the end of the sample rack close to the clamping mechanism 30 tilts upward until it abuts against the second end of the limit arm 3056d, so as to limit the tilt angle of the sample rack by the limit arm 3056d. Then, driven by the driving mechanism 40, the clamping mechanism 30 places the sample rack on the supporting plate 206 at one end of the guide mechanism 20, and driven by the motor 302, the movable clamping plate 305 slides in the direction away from the fixed clamping plate 304, and the first clamping protrusion 3054 and the second clamping protrusion 3055 are separated from the sample rack; finally, driven by the driving mechanism 40, the contact rod 3066 of the clamping mechanism 30 moves to abut the side of one end of the sample rack, pushing the sample rack from one end of the guide mechanism 20 to the other end until it leaves the guide mechanism 20 and enters the second analyzer.

[0048] The beneficial effects of the embodiment of the present invention are as follows: different from the prior art, the embodiment of the present invention uses the driving mechanism 40 and the clamping mechanism 30 to cooperate with each other to clamp the sample rack from the analytical instrument. The driving mechanism 40 and the clamping mechanism 30 can cooperate to clamp the sample rack from the analytical instruments at different heights to the guide mechanism 20, and at the same time, there is no need to open an exit on one side of the analyzer for the sample rack to leave the analyzer, which is suitable for more usage conditions; the clamping mechanism 30 places the sample on the guide mechanism 20, and uses the driving mechanism 40 to push the sample rack 30 to transfer, so that the driving mechanism 40 only needs to achieve linear motion, and there is no need to increase rotational motion in order to avoid interference between the driving mechanism 40 and the clamping mechanism 30 and the analytical instrument housing, thereby simplifying the control process and shortening the maximum distance that the driving mechanism 40 moves from the first analytical instrument to the second analytical instrument, saving working space.

[0049] A clamping protrusion is then provided on the movable clamping plate 305 of the clamping mechanism 30, and the clamping protrusion is inserted into the sample rack to prevent the sample rack from falling and being damaged; a limiting component 3056 is provided on the movable clamping plate 305 to cooperate with the clamping protrusion so that when the clamping mechanism 30 clamps one end of the sample rack and moves vertically upward, the other end of the sample rack tilts downward under the action of gravity. At this time, the limiting groove on the base of the sample rack is disengaged from the limiting protrusion on the analyzer, so that the sample rack can be separated from the analyzer under the clamping of the clamping mechanism 30, so that the transfer device 1 is suitable for an analyzer with a limiting protrusion structure.

[0050] The present invention further provides an embodiment of an analytical instrument, which includes the above-mentioned transfer device 1. The specific structure and function of the above-mentioned transfer device 1 can be found in the above-mentioned embodiment, which will not be described in detail here.

[0051] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not used as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the present invention; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the protection scope of the claims attached to the present invention.

Claims

1. A transfer device, It is characterized in that include: Base; A guide mechanism, disposed on the base; A driving mechanism, wherein the driving mechanism is disposed on the base; The clamping mechanism is installed on the driving mechanism, the clamping mechanism is used to grasp and place the sample rack, and the driving mechanism is used to drive the clamping mechanism to realize three-axis movement, the clamping mechanism comprises a mounting seat, a motor, a driving shaft, a fixed clamping plate and a movable clamping plate, the mounting seat is fixed to the driving mechanism, the motor is arranged on the mounting seat, the first end of the driving shaft is connected to the motor, the end surface of the second end of the driving shaft is provided with a driving convex portion, the driving convex portion is eccentrically arranged relative to the driving shaft, the fixed clamping plate is fixed to the mounting seat, the movable clamping plate is slidably arranged on the mounting seat, and the fixed clamping plate and the movable clamping plate are arranged relatively, the fixed clamping plate and the movable clamping plate at least partially protrude from the mounting seat, the movable clamping plate is provided with a driving groove, the driving convex portion is inserted into the driving groove, and when the motor drives the driving shaft to rotate, the movable clamping plate moves in a direction away from or close to the fixed clamping plate under the drive of the driving convex portion; Under the drive of the driving mechanism, the clamping mechanism can grab the sample rack from the outside and place the sample rack at one end of the guiding mechanism, and the clamping mechanism pushes the sample rack to move along the guiding mechanism.

2. The transfer device according to claim 1, It is characterized in that The transfer device also includes a clamping protrusion and a limiting assembly, both of which are arranged on a surface of the movable clamping plate facing the fixed clamping plate, the clamping protrusion is used to be inserted into the sample rack, and the limiting assembly is used to abut against the sample rack to limit the inclination angle of the sample rack.

3. The transfer device according to claim 2, It is characterized in that The clamping protrusions include a first clamping protrusion and a second clamping protrusion, and the first clamping protrusion and the second clamping protrusion are arranged side by side on a surface of the movable clamping plate facing the fixed clamping plate.

4. The transfer device according to claim 2, It is characterized in that The limiting assembly includes a mounting portion and a limiting arm, a surface of the mounting portion is attached to a surface of the movable clamping plate facing away from the fixed clamping plate, a first end of the limiting arm is connected to an end of the mounting portion, and a second end of the limiting arm passes over one side of the movable clamping plate and protrudes out of a surface of the movable clamping plate facing the fixed clamping plate.

5. The transfer device according to claim 4, It is characterized in that The limiting arm is provided with a strip hole, and the movable clamping plate is provided with a screw hole; The limiting assembly also includes a bolt, which passes through the strip hole and is screwed into the screw hole.

6. The transfer device according to claim 1, It is characterized in that The movable clamping plate is provided with a first sliding hole and a second sliding hole; The mounting seat includes a first mounting plate, a second mounting plate, a third mounting plate, a first mounting shaft and a second mounting shaft, one end of the first mounting plate and one end of the second mounting plate are both connected to the first surface of the third mounting plate, and the first mounting plate and the second mounting plate are arranged opposite to each other, the fixed clamping plate is fixed to the surface of the first mounting plate facing the second mounting plate, one end of the first mounting shaft is connected to the first mounting plate, the other end of the first mounting shaft is connected to the second mounting plate after passing through the first sliding hole, one end of the second mounting shaft is connected to the first mounting plate, the other end of the second mounting shaft is connected to the second mounting plate after passing through the second sliding hole, the first mounting shaft is parallel to the second mounting shaft, and the movable clamping plate can slide along the first mounting shaft and the second mounting shaft.

7. The transfer device according to any one of claims 1 to 6, It is characterized in that The driving mechanism includes a first translation unit, a second translation unit and a lifting unit, the first translation unit is installed on the base, the second translation unit is slidably arranged on the lifting unit, the lifting unit is slidably arranged on the first translation unit, the clamping mechanism is installed on the second translation unit, and the movement directions of the first translation unit, the second translation unit and the lifting unit are perpendicular to each other.

8. The transfer device according to claim 1, It is characterized in that The guide mechanism is a slide groove which is arranged on the base and has openings at both ends.

9. An analytical instrument, It is characterized in that Comprising a transfer device as claimed in any one of claims 1 to 8.

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