Sample tube clamping mechanism

Abstract

The embodiment of the utility model discloses a sample tube clamping mechanism. The sample tube clamping mechanism comprises a mounting base, a clamping assembly, an elastic piece and a driving assembly, the clamping assembly is connected with the mounting base and used for clamping a sample tube, the elastic piece is connected with the clamping assembly and used for providing first acting force for the clamping assembly so that the clamping assembly can clamp the sample tube, and the driving assembly is connected with the clamping assembly and used for driving the clamping assembly to clamp the sample tube. The driving assembly is used for providing a second acting force for the clamping assembly, so that the clamping assembly is opened, and the sample tube is released. According to the sample tube clamping mechanism, the clamping assembly clamps the sample tube through the elastic force of the elastic piece, the sample tube clamping mechanism can clamp the sample tube without depending on a driving assembly, the sample tube clamping mechanism can adapt to sample tubes of different sizes, and the operation mode is simple and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a sample tube clamping mechanism. BACKGROUND

[0002] In the sample pretreatment process, the sample tube needs to be opened and closed. The commonly used automatic equipment generally needs a cap screwing clamp jaw and a sample tube body clamping mechanism. During the opening and closing of the cap, the clamping mechanism needs to continuously apply a holding force to the tube body to fix the sample tube. The commonly used solution is motor torque control. Different specifications and sizes of sample tubes correspond to different motor torque parameters, so that the motor torque control solution needs a feedback control chip or an encoder, thereby making the cost higher and the control solution more complex. CONTENT OF THE UTILITY MODEL

[0003] The sample tube clamping mechanism provided by the embodiments of the present application can solve the problem that the operation mode of the existing sample tube clamping mechanism is relatively complex when adapting to sample tubes of different specifications and sizes.

[0004] The sample tube clamping mechanism provided by the embodiments of the present application comprises:

[0005] a mounting seat;

[0006] a clamping assembly connected with the mounting seat, the clamping assembly being used for clamping a sample tube;

[0007] an elastic member connected with the clamping assembly, the elastic member being used for providing a first acting force to the clamping assembly to make the clamping assembly clamp tightly, thereby clamping the sample tube;

[0008] a driving assembly connected with the clamping assembly, the driving assembly being used for providing a second acting force to the clamping assembly to make the clamping assembly open, thereby releasing the sample tube.

[0009] In some embodiments, the clamping assembly comprises a first clamping member and a second clamping member, and the first clamping member and / or the second clamping member is / are in sliding connection with the mounting seat to clamp or release the sample tube.

[0010] In some embodiments, the elastic member is connected with the first clamping member and the second clamping member, and the elastic member is used for providing the first acting force to the first clamping member and / or the second clamping member to drive the first clamping member and / or the second clamping member to slide relative to the mounting seat, so that the first clamping member and the second clamping member approach each other and clamp the sample tube.

[0011] In some embodiments, the driving assembly is connected with the first clamping member and / or the second clamping member, and the driving assembly is configured to provide the second force to the first clamping member and / or the second clamping member to drive the first clamping member and / or the second clamping member to slide relative to the mounting base, so as to move the first clamping member and the second clamping member away from each other and release the sample tube.

[0012] In some embodiments, the driving assembly comprises a driving member and a first transmission member, the driving member is connected with the first transmission member, the first transmission member is connected with the first clamping member, and the driving member is configured to drive the first transmission member to move so as to drive the first clamping member to slide relative to the mounting base.

[0013] The driving assembly comprises a driving member and a second transmission member, the driving member is connected with the second transmission member, the second transmission member is connected with the second clamping member, and the driving member is configured to drive the second transmission member to move so as to drive the second clamping member to slide relative to the mounting base.

[0014] In some embodiments, the driving member comprises a driving motor, a driving shaft and a driving wheel, the driving wheel is connected with the first transmission member and / or the second transmission member, and the driving motor is configured to drive the driving shaft to rotate so as to drive the driving wheel to rotate, thereby driving the first transmission member and / or the second transmission member to move.

[0015] In some embodiments, the driving shaft has a locking position and an unlocking position, when the driving shaft is located at the locking position, the driving shaft is locked with the driving wheel so as to drive the driving wheel to rotate, and when the driving shaft is located at the unlocking position, the driving shaft is unlocked with the driving wheel so as to drive the driving wheel to rotate independently.

[0016] In some embodiments, the first transmission member comprises a first gear rack, and the driving wheel is engaged with the first gear rack; and / or, the second transmission member comprises a second gear rack, and the driving wheel is engaged with the second gear rack.

[0017] In some embodiments, the sample tube clamping mechanism further comprises a detection assembly, the detection assembly is arranged on the mounting base, and the detection assembly is configured to detect the working state of the clamping assembly.

[0018] In some embodiments, the detection assembly comprises a first sensor and a second sensor.

[0019] The first sensor and the second sensor are arranged along the sliding direction of the first clamping piece, the first sensor is arranged corresponding to the open position of the first clamping piece, and the second sensor is arranged corresponding to the closed position of the first clamping piece; when the first clamping piece triggers the first sensor and the second sensor is not triggered, the clamping assembly is in an open state; when the first clamping piece triggers the second sensor and the first sensor is not triggered, the clamping assembly is in a closed state; and / or,

[0020] The first sensor and the second sensor are arranged along the sliding direction of the second clamping piece, the first sensor is arranged corresponding to the open position of the second clamping piece, and the second sensor is arranged corresponding to the closed position of the second clamping piece; when the second clamping piece triggers the first sensor and the second sensor is not triggered, the clamping assembly is in an open state; when the second clamping piece triggers the second sensor and the first sensor is not triggered, the clamping assembly is in a closed state; and when the first sensor and the second sensor are not triggered, the clamping assembly is in a clamping state.

[0021] The beneficial effects of the embodiments of the present application are as follows:

[0022] The sample tube clamping mechanism in the embodiments of the present application comprises a mounting seat, a clamping assembly, an elastic member and a driving assembly, the clamping assembly is connected with the mounting seat, the clamping assembly is used for clamping a sample tube, the elastic member is connected with the clamping assembly, the elastic member is used for providing a first acting force to the clamping assembly to make the clamping assembly clamp tightly, so as to clamp the sample tube, and the driving assembly is connected with the clamping assembly, the driving assembly is used for providing a second acting force to the clamping assembly to make the clamping assembly open, so as to release the sample tube. The sample tube clamping mechanism in the present application uses the elastic force of the elastic member itself to make the clamping assembly clamp the sample tube, so that the clamping of the sample tube clamping mechanism on the sample tube is not dependent on the driving assembly, and different sizes of sample tubes can be adapted, and the operation mode is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a kind of assembly structure schematic diagram of sample tube clamping mechanism provided by the embodiments of the present application;

[0025] Figure 2is an explosion structure schematic diagram of a sample tube clamping mechanism provided by an embodiment of the present application;

[0026] Figure 3 is a structure schematic diagram of a driving member provided by an embodiment of the present application;

[0027] Figure 4 is a connection structure schematic diagram of a driving wheel, a first transmission member and a second transmission member provided by an embodiment of the present application;

[0028] Figure 5 is a schematic diagram of a detection assembly detecting a working state of a clamping assembly provided by an embodiment of the present application.

[0029] Legend:

[0030] 100, sample tube clamping mechanism; 110, mounting seat; 120, clamping assembly; 121, first clamping member; 122, second clamping member; 130, elastic member; 140, driving assembly; 141, driving member; 1411, driving motor; 1412, driving shaft; 1413, driving wheel; 142, first transmission member; 1421, first rack; 143, second transmission member; 1431, second rack; 150, detection assembly; 151, first sensor; 152, second sensor;

[0031] 200, sample tube. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the direction of the drawing surface in the drawings; and "inner" and "outer" refer to the contour of the device.

[0033] The present application provides a sample tube clamping mechanism, which is described in detail below. It should be noted that the description order of the following embodiments is not used to limit the preferred order of the embodiments.

[0034] As shown in FIG. 1, the sample tube clamping mechanism 100 comprises a mounting seat 110, a clamping assembly 120, an elastic member 130 and a driving assembly 140. Figure 1As shown, the sample tube clamping mechanism 100 comprises a mounting base 110 and a clamping assembly 120, the clamping assembly 120 is connected with the mounting base 110, and the clamping assembly 120 is used for clamping the sample tube 200, that is, the mounting base 110 is used for supporting the clamping assembly 120 so as to facilitate the installation of the clamping assembly 120, and the clamping assembly 120 is used for clamping the sample tube 200 so as to facilitate the opening and tightening of the tube cover of the sample tube 200.

[0035] The sample tube clamping mechanism 100 comprises an elastic member 130, the elastic member 130 is connected with the clamping assembly 120, and the elastic member 130 is used for providing a first acting force to the clamping assembly 120 so as to clamp the clamping assembly 120, thereby clamping the sample tube 200. That is, when clamping the sample tube 200, the sample tube clamping mechanism 100 can use the elastic force of the elastic member 130 itself to clamp the sample tube 200 by the clamping assembly 120, so that the clamping of the sample tube 200 by the clamping assembly 120 is independent of the size of the sample tube 200, and can be applied to sample tubes 200 of various sizes.

[0036] The sample tube clamping mechanism 100 comprises a driving assembly 140, the driving assembly 140 is connected with the clamping assembly 120, and the driving assembly 140 is used for providing a second acting force to the clamping assembly 120 to resist the elastic force of the elastic member 130, so as to open the clamping assembly 120, thereby releasing the sample tube 200. That is, when it is needed to take the sample tube 200 out of the sample tube clamping mechanism 100, the clamping assembly 120 can be driven to open by the driving assembly 140.

[0037] Among them, the elastic member 130 can be a tension spring. When it is needed to clamp the sample tube 200, the clamping assembly 120 is driven to open by the driving assembly 140, the tension spring is also stretched at the same time, then the sample tube 200 is placed in the clamping assembly 120, the driving assembly 140 stops driving the clamping assembly 120, and the tension spring automatically retracts under the action of its own elastic force, thereby clamping the sample tube 200 by the clamping assembly 120; when it is needed to take out the sample tube 200, the clamping assembly 120 is driven to open by the driving assembly 140, thereby releasing the sample tube 200.

[0038] It should be noted that the elastic member 130 in the embodiments of the present application can also be a compression spring, a torsion spring, a gas tension spring or other elastic parts, which are not specially limited here.

[0039] The sample tube clamping mechanism 100 in the embodiment of the present application comprises a mounting base 110, a clamping assembly 120, an elastic member 130 and a driving assembly 140. The clamping assembly 120 is connected with the mounting base 110 and is used for clamping the sample tube 200. The elastic member 130 is connected with the clamping assembly 120 and is used for providing a first acting force to the clamping assembly 120 so as to clamp the clamping assembly 120 and thereby clamp the sample tube 200. The driving assembly 140 is connected with the clamping assembly 120 and is used for providing a second acting force to the clamping assembly 120 so as to open the clamping assembly 120 and thereby release the sample tube 200. The sample tube clamping mechanism 100 in the present application utilizes the elastic force of the elastic member 130 to clamp the sample tube 200 by the clamping assembly 120, so that the clamping of the sample tube 200 by the sample tube clamping mechanism 100 is not dependent on the driving assembly 140 and can be adapted to sample tubes 200 of different sizes, and the operation mode is simple and convenient.

[0040] In some embodiments, as shown in Figure 1 and Figure 2 The clamping assembly 120 comprises a first clamping member 121 and a second clamping member 122. The first clamping member 121 and / or the second clamping member 122 are in sliding connection with the mounting base 110, and the first clamping member 121 and the second clamping member 122 can slide relative to the mounting base 110 to clamp the sample tube 200 between the first clamping member 121 and the second clamping member 122 or release the sample tube 200. That is, the clamping assembly 120 clamps or releases the sample tube 200 by sliding the first clamping member 121 and / or the second clamping member 122 relative to the mounting base 110. Among them, the first clamping member 121 and the second clamping member 122 can be one slidingly installed relative to the mounting base 110 and the other fixedly installed relative to the mounting base 110, that is, the acting force provided by the driving assembly 140 and the elastic member 130 only acts on one of them, thereby realizing the tightening and opening of the clamping assembly 120. Alternatively, the first clamping member 121 and the second clamping member 122 are simultaneously slidingly installed relative to the mounting base 110, and the acting force provided by the driving assembly 140 and the elastic member 130 simultaneously acts on the first clamping member 121 and the second clamping member 122.

[0041] As shown in Figure 1As shown, the elastic member 130 is connected with the first clamping member 121 and the second clamping member 122, and the elastic member 130 is configured to provide a first force to the first clamping member 121 and / or the second clamping member 122, so as to drive the first clamping member 121 and / or the second clamping member 122 to slide relative to the mounting base 110, so that the first clamping member 121 and the second clamping member 122 are close to each other and clamp the sample tube 200. That is, the first force provided by the elastic member 130 drives the first clamping member 121 to slide towards the second clamping member 122, or drives the second clamping member 122 to slide towards the first clamping member 121, or drives the first clamping member 121 and the second clamping member 122 to slide towards each other, so as to clamp the clamping assembly 120.

[0042] Correspondingly, the driving assembly 140 is connected with the first clamping member 121 and / or the second clamping member 122, and the driving assembly 140 is configured to provide a second force to the first clamping member 121 and / or the second clamping member 122, so as to drive the first clamping member 121 and / or the second clamping member 122 to slide relative to the mounting base 110, so that the first clamping member 121 and the second clamping member 122 are away from each other and release the sample tube 200. That is, the second force provided by the driving assembly 140 drives the first clamping member 121 to slide away from the second clamping member 122, or drives the second clamping member 122 to slide away from the first clamping member 121, or drives the first clamping member 121 and the second clamping member 122 to slide away from each other, so as to release the clamping assembly 120.

[0043] Optionally, as shown, Figure 2 As shown, the driving assembly 140 includes a driving member 141 and a first transmission member 142, the driving member 141 is connected with the first transmission member 142, the first transmission member 142 is connected with the first clamping member 121, and the driving member 141 is configured to drive the first transmission member 142 to move, so as to drive the first clamping member 121 to slide relative to the mounting base 110. That is, when only the first clamping member 121 is slidably installed relative to the mounting base 110, the driving assembly 140 realizes the sliding of the first clamping member 121 relative to the mounting base 110 by the cooperation of the driving member 141 and the first transmission member 142.

[0044] In some embodiments, the driving assembly 140 includes a driving member 141 and a second transmission member 143, the driving member 141 is connected with the second transmission member 143, the second transmission member 143 is connected with the second clamping member 122, and the driving member 141 is configured to drive the second transmission member 143 to move, so as to drive the second clamping member 122 to slide relative to the mounting base 110. That is, when only the second clamping member 122 is slidably installed relative to the mounting base 110, the driving assembly 140 realizes the sliding of the second clamping member 122 relative to the mounting base 110 by the cooperation of the driving member 141 and the second transmission member 143.

[0045] In some embodiments, the driving assembly 140 comprises a driving member 141, a first transmission member 142 and a second transmission member 143, the driving member 141 is connected with the first transmission member 142 and the second transmission member 143, the first transmission member 142 is connected with the first clamping member 121, the second transmission member 143 is connected with the second clamping member 122, and the driving member 141 is configured to drive the first transmission member 142 and the second transmission member 143 to move, so as to drive the first clamping member 121 and the second clamping member 122 to slide relative to the mounting base 110. That is, when the first clamping member 121 and the second clamping member 122 are both slidably mounted relative to the mounting base 110, the driving assembly 140 utilizes the cooperation of the driving member 141, the first transmission member 142 and the second transmission member 143 to achieve the sliding of the first clamping member 121 and the second clamping member 122 relative to the mounting base 110.

[0046] Optionally, as shown in Figure 3 the driving member 141 comprises a driving motor 1411, a driving shaft 1412 and a driving wheel 1413, the driving wheel 1413 is connected with the first transmission member 142 and / or the second transmission member 143, and the driving motor 1411 is configured to drive the driving shaft 1412 to rotate, so as to drive the driving wheel 1413 to rotate, thereby driving the first transmission member 142 and / or the second transmission member 143 to move. That is, when the driving member 141 is driven, the rotation of the driving motor 1411 drives the rotation of the driving shaft 1412, the driving shaft 1412 drives the rotation of the driving wheel 1413, and the driving wheel 1413 drives the first transmission member 142 and / or the second transmission member 143 to move through the cooperation of the first transmission member 142 and / or the second transmission member 143, so as to drive the first clamping member 121 and / or the second clamping member 122 to slide relative to the mounting base 110, thereby achieving the clamping and opening of the clamping assembly 120.

[0047] In some embodiments, the driving shaft 1412 has a locking position and an unlocking position, when the driving shaft 1412 is located at the locking position, the driving shaft 1412 is locked with the driving wheel 1413, so as to drive the driving wheel 1413 to rotate; when the driving shaft 1412 is located at the unlocking position, the driving shaft 1412 is unlocked with the driving wheel 1413, so as to drive the driving wheel 1413 to rotate independently. That is, when the driving shaft 1412 is located at the locking position, the driving shaft 1412 can rotate synchronously with the driving wheel 1413, and the driving wheel 1413 can drive the first clamping member 121 and / or the second clamping member 122 to slide relative to the mounting base 110 through the first transmission member 142 and / or the second transmission member 143, thereby opening the clamping assembly 120.

[0048] When the driving shaft 1412 is in the unlocking position, the rotation of the driving shaft 1412 and the driving wheel 1413 is independent, and the driving shaft 1412 cooperates with the driving motor 1411, the driving wheel 1413 cooperates with the first clamping part 121 and / or the second clamping part 122 through the first transmission part 142 and / or the second transmission part 143, so that the rotation of the driving motor 1411 and the sliding of the first clamping part 121 and / or the second clamping part 122 are independent, thereby making the sliding of the first clamping part 121 and / or the second clamping part 122 irrelevant to the rotation of the driving motor 1411 when the clamping assembly 120 is clamped under the action of the elastic part 130, so that the clamping assembly 120 can clamp sample tubes of different sizes under the action of the elastic force of the elastic part 130 itself.

[0049] In the embodiment of the present application, the driving shaft 1412 can be a one-way bearing, that is, when the inner ring of the one-way bearing rotates in one direction, the inner ring can rotate flexibly relative to the outer ring, and the inner and outer rings are disconnected, that is, when the driving shaft 1412 is in the unlocking position, the driving shaft 1412 is unlocked with the driving wheel 1413, and the rotation of the driving shaft 1412 and the driving wheel 1413 is independent; when the inner ring rotates in the opposite direction, the inner and outer rings are locked, and the inner ring rotates together with the outer ring, that is, when the driving shaft 1412 is in the locking position, the driving shaft 1412 can rotate synchronously with the driving wheel 1413.

[0050] It should be noted that, in addition to using a one-way bearing, a one-way transmission part such as an overrunning clutch, a ratchet wheel, etc. can also be used in the embodiment of the present application, as long as it can realize the locking and unlocking of the driving shaft 1412 and the driving wheel 1413, which is not particularly limited here.

[0051] In some embodiments, as shown in Figure 4 The first transmission part 142 includes a first rack 1421, and the driving wheel 1413 is engaged with the first rack 1421; and / or, the second transmission part 143 includes a second rack 1431, and the driving wheel 1413 is engaged with the second rack 1431. That is, the driving wheel 1413 and the first transmission part 142 and / or the second transmission part 143 can realize synchronous rotation through the cooperation of the gear and the rack.

[0052] It should be noted that, in addition to using a gear and a rack for transmission, a symmetric transmission mechanism such as a worm and worm gear, a reverse screw, or a cam can also be used in the embodiment of the present application, which is not particularly limited here.

[0053] Optionally, as shown in Figure 1 and Figure 5As shown, the sample tube clamping mechanism 100 further comprises a detection assembly 150 arranged on the mounting base 110, which is used to detect the working state of the clamping assembly 120. That is, by arranging the detection assembly 150 on the mounting base 110, the clamping state, the open state or the closed state of the clamping assembly 120 can be detected.

[0054] It should be noted that the clamping state refers to the state of the clamping assembly 120 clamping the sample tube 200, the open state refers to the state of the clamping assembly 120 being pulled apart in order to clamp the sample tube 200, and the closed state refers to the state of the clamping assembly 120 being automatically tightened under the action of the elastic member 130 when not clamping the sample tube 200.

[0055] The detection assembly 150 comprises a first sensor 151 and a second sensor 152, which are arranged along the sliding direction of the first clamping piece 121. The first sensor 151 is arranged corresponding to the open position of the first clamping piece 121, and the second sensor 152 is arranged corresponding to the closed position of the first clamping piece 121. When the first clamping piece 121 triggers the first sensor 151 and the second sensor 152 is not triggered, the clamping assembly 120 is in the open state; when the first clamping piece 121 triggers the second sensor 152 and the first sensor 151 is not triggered, the clamping assembly 120 is in the closed state; when neither the first sensor 151 nor the second sensor 152 is triggered, the clamping assembly 120 is in the clamping state.

[0056] That is, when the first sensor 151 is triggered and the second sensor 152 is not triggered, the first clamping piece 121 moves to the limit position in the direction away from the second clamping piece 122, at which time the clamping assembly 120 is in the open state; when neither the first sensor 151 nor the second sensor 152 is triggered, the first clamping piece 121 stops at the intermediate position, at which time the clamping assembly 120 is in the clamping state of clamping the sample tube 200; when the second sensor 152 is triggered and the first sensor 151 is not triggered, the first clamping piece 121 moves to the limit position in the direction close to the second clamping piece 122, at which time the clamping assembly 120 is in the closed state and the clamping assembly 120 does not clamp the sample tube 200.

[0057] Alternatively, the detection assembly 150 comprises a first sensor 151 and a second sensor 152, the first sensor 151 and the second sensor 152 are arranged along the sliding direction of the second clamping member 122, the first sensor 151 is arranged corresponding to the open position of the second clamping member 122, and the second sensor 152 is arranged corresponding to the closed position of the second clamping member 122; when the second clamping member 122 triggers the first sensor 151 and the second sensor 152 is not triggered, the clamping assembly 120 is in the open state; when the second clamping member 122 triggers the second sensor 152 and the first sensor 151 is not triggered, the clamping assembly 120 is in the closed state; when the first sensor 151 and the second sensor 152 are not triggered, the clamping assembly 120 is in the clamping state.

[0058] That is, when the first sensor 151 is triggered and the second sensor 152 is not triggered, the second clamping member 122 moves to the limit position away from the first clamping member 121, at this time the clamping assembly 120 is in the open state; when the first sensor 151 and the second sensor 152 are not triggered, the second clamping member 122 stops at the intermediate position, at this time the clamping assembly 120 is in the clamping state of the sample tube 200; when the second sensor 152 is triggered and the first sensor 151 is not triggered, the second clamping member 122 moves to the limit position close to the first clamping member 121, at this time the clamping assembly 120 is in the closed state, and the clamping assembly 120 does not clamp the sample tube 200.

[0059] It can be understood that when only the first clamping member 121 is slidingly installed relative to the mounting seat 110, the first sensor 151 and the second sensor 152 are arranged along the sliding direction of the first clamping member 121; when only the second clamping member 122 is slidingly installed relative to the mounting seat 110, the first sensor 151 and the second sensor 152 are arranged along the sliding direction of the second clamping member 122; when the first clamping member 121 and the second clamping member 122 are both slidingly installed relative to the mounting seat 110, the first clamping member 121 and the second clamping member 122 are synchronously sliding towards or away from each other, then the first sensor 151 and the second sensor 152 can be arranged along the sliding direction of the first clamping member 121, or can be arranged along the sliding direction of the second clamping member 122.

[0060] It should be noted that the first sensor 151 and the second sensor 152 can be a photoelectric sensor, an electromagnetic induction sensor, a micro-motion sensor or other detection components, which are not specially limited here.

[0061] The sample tube clamping mechanism provided by the embodiments of the present application is described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed, and the above description should not be understood as a limitation on the present application.

Claims

1. A sample tube clamping mechanism (100), characterized by, The utility model relates to a sample tube clamping device, comprising: a mounting base (110); a clamping assembly (120) connected with the mounting base (110), the clamping assembly (120) is used for clamping a sample tube (200); a resilient member (130) connected with the clamping assembly (120), the resilient member (130) is used for providing a first force to the clamping assembly (120) to make the clamping assembly (120) clamp, thereby clamping the sample tube (200); a drive assembly (140) connected with the clamping assembly (120), the drive assembly (140) is used for providing a second force to the clamping assembly (120) to make the clamping assembly (120) open, thereby releasing the sample tube (200).

2. The sample tube clamping mechanism (100) according to claim 1, characterized in that The clamping assembly (120) comprises a first clamping member (121) and a second clamping member (122), and the first clamping member (121) and / or the second clamping member (122) is / are in sliding connection with the mounting base (110) to clamp or release the sample tube (200).

3. The sample tube clamping mechanism (100) according to claim 2, characterized in that The resilient member (130) is connected with the first clamping member (121) and the second clamping member (122), and the resilient member (130) is used for providing the first force to the first clamping member (121) and / or the second clamping member (122) to drive the first clamping member (121) and / or the second clamping member (122) to slide relative to the mounting base (110), so that the first clamping member (121) and the second clamping member (122) approach each other and clamp the sample tube (200).

4. The sample tube clamping mechanism (100) according to claim 2, characterized in that The drive assembly (140) is connected with the first clamping member (121) and / or the second clamping member (122), and the drive assembly (140) is used for providing the second force to the first clamping member (121) and / or the second clamping member (122) to drive the first clamping member (121) and / or the second clamping member (122) to slide relative to the mounting base (110), so that the first clamping member (121) and the second clamping member (122) move away from each other and release the sample tube (200).

5. The sample tube clamping mechanism (100) according to claim 4, characterized in that The drive assembly (140) comprises a drive member (141) and a first transmission member (142), the drive member (141) is connected with the first transmission member (142), the first transmission member (142) is connected with the first clamping member (121), and the drive member (141) is used for driving the first transmission member (142) to move to drive the first clamping member (121) to slide relative to the mounting base (110); and / or The drive assembly (140) comprises a drive member (141) and a second transmission member (143), the drive member (141) is connected with the second transmission member (143), the second transmission member (143) is connected with the second clamping member (122), and the drive member (141) is used for driving the second transmission member (143) to move to drive the second clamping member (122) to slide relative to the mounting base (110).

6. The sample tube clamping mechanism (100) according to claim 5, characterized in that The driving member (141) comprises a driving motor (1411), a driving shaft (1412) and a driving wheel (1413), the driving wheel (1413) is connected with the first transmission member (142) and / or the second transmission member (143), the driving motor (1411) is used for driving the driving shaft (1412) to rotate, so as to drive the driving wheel (1413) to rotate, thereby driving the first transmission member (142) and / or the second transmission member (143) to move.

7. The sample tube clamping mechanism (100) according to claim 6, characterized in that The driving shaft (1412) has a locking position and an unlocking position, when the driving shaft (1412) is located at the locking position, the driving shaft (1412) is locked with the driving wheel (1413), so that the driving shaft (1412) drives the driving wheel (1413) to rotate; when the driving shaft (1412) is located at the unlocking position, the driving shaft (1412) is unlocked with the driving wheel (1413), so that the driving shaft (1412) and the driving wheel (1413) rotate independently.

8. The sample tube clamping mechanism (100) of claim 6, characterized in that The first transmission member (142) comprises a first rack (1421), and the driving wheel (1413) is engaged with the first rack (1421); and / or, The second transmission member (143) comprises a second rack (1431), and the driving wheel (1413) is engaged with the second rack (1431).

9. The sample tube clamping mechanism (100) of claim 2, wherein, The sample tube clamping mechanism (100) further comprises a detection assembly (150), which is arranged on the mounting seat (110), and is used for detecting the working state of the clamping assembly (120).

10. The sample tube clamping mechanism (100) according to claim 9, characterized in that The detection assembly (150) comprises a first sensor (151) and a second sensor (152); The first sensor (151) and the second sensor (152) are arranged along the sliding direction of the first clamping piece (121), the first sensor (151) is arranged corresponding to the open position of the first clamping piece (121), and the second sensor (152) is arranged corresponding to the closed position of the first clamping piece (121); when the first clamping piece (121) triggers the first sensor (151) and the second sensor (152) is not triggered, the clamping assembly (120) is in an open state; when the first clamping piece (121) triggers the second sensor (152) and the first sensor (151) is not triggered, the clamping assembly (120) is in a closed state; when the first sensor (151) and the second sensor (152) are not triggered, the clamping assembly (120) is in a clamping state; and / or, The first sensor (151) and the second sensor (152) are arranged along the sliding direction of the second clamping piece (122), the first sensor (151) is arranged corresponding to the open position of the second clamping piece (122), and the second sensor (152) is arranged corresponding to the closed position of the second clamping piece (122); when the second clamping piece (122) triggers the first sensor (151) and the second sensor (152) is not triggered, the clamping assembly (120) is in an open state; when the second clamping piece (122) triggers the second sensor (152) and the first sensor (151) is not triggered, the clamping assembly (120) is in a closed state; when the first sensor (151) and the second sensor (152) are not triggered, the clamping assembly (120) is in a clamping state.

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