Clamping device and detection apparatus

Abstract

The present application relates to a kind of clamping device and detection equipment, the clamping device includes displacement component, multiple contact pieces and multiple elastic pieces;Multiple contact pieces are connected with the displacement component and move with the displacement component, to be applied to clamp multiple sample tubes;Multiple elastic pieces are correspondingly connected between multiple contact pieces and displacement component, when multiple contact pieces correspond to the independent compression of the elastic piece of sample tube abutment each other. Thus, any contact piece can independently compress the elastic piece corresponding thereto, so that each elastic piece can have different deformation. That is, the above-mentioned clamping device, any contact piece can independently adapt to clamp sample tube, so that each sample tube can be stably clamped. The detection equipment includes the above-mentioned clamping device, and each sample tube can be stably clamped.

Description

Technical Field

[0001] This invention relates to the field of in vitro diagnostic medical device technology, and in particular to a clamping device and a testing device. Background Technology

[0002] In vitro diagnostics (IVD) refers to products and services that obtain clinical diagnostic information by testing human samples (blood, body fluids, tissues, etc.) outside the human body, thereby determining diseases or bodily functions. With the development of technology, automated equipment is gradually replacing manual operation in IVD to ensure efficiency.

[0003] In traditional in vitro diagnostic techniques, the sample tube is usually clamped by a clamping device so that the capping device can rotate the cap of the sample tube.

[0004] However, current clamping devices have difficulty controlling the clamping force when clamping sample tubes. If the clamping force is too small, only part of the sample tube may be clamped, while if the clamping force is too large, the sample tube may be damaged. Summary of the Invention

[0005] Therefore, it is necessary to provide a clamping device and detection equipment to address the problem of how to stably clamp each sample tube.

[0006] A clamping device, the clamping device comprising:

[0007] Displacement components;

[0008] Multiple contact elements are connected to the displacement assembly and move with the displacement assembly to correspondingly clamp multiple sample tubes;

[0009] Multiple elastic elements are correspondingly connected between multiple contact elements and displacement components, and the multiple contact elements independently compress the elastic elements when they abut against the sample tube.

[0010] In one embodiment, the clamping device further includes a base on which a guide shaft is provided, and the displacement component, the elastic element, and the contact element are sequentially and movably sleeved on the guide shaft.

[0011] In one embodiment, the displacement assembly includes a pusher movably disposed on the guide shaft, an elastic member sleeved on the guide shaft, and both ends of the elastic member elastically abutting against the pusher and the contact member, respectively.

[0012] In one embodiment, the displacement assembly further includes a connector connected to the pusher, and the connector abuts against a side of the contact member away from the pusher.

[0013] In one embodiment, the connector and the contact can be detachably disposed.

[0014] In one embodiment, the clamping device further includes a driving member connected to the guide shaft to drive the guide shaft to rotate. The guide shaft is provided with a first threaded structure, and the pusher is provided with a second threaded structure. The first threaded structure and the second threaded structure cooperate to drive the pusher to move when the guide shaft rotates.

[0015] In one embodiment, the base is provided with a mating member, the contact member moves toward the mating member to clamp the sample tube together with the mating member, and the contact member is capable of compressing the elastic member in a direction away from the mating member.

[0016] In one embodiment, the contact member and the mating member are respectively recessed on their opposite sides, with a first clamping portion and a second clamping portion for adapting to clamp the sample tube.

[0017] In one embodiment, the clamping device further includes a cup holder, the cup holder being hollow to accommodate the sample tube; and

[0018] A second buffer pad is disposed on the inner wall of the cup holder, and the second buffer pad is used to fit and abut against the sample tube.

[0019] A testing device, the testing device comprising:

[0020] The clamping device as described in any of the above embodiments.

[0021] In the aforementioned clamping device, the displacement component can drive multiple contact elements to move, correspondingly clamping multiple sample tubes. When a contact element contacts and abuts against a sample tube, it can move in the direction of compressing the elastic element; that is, the contact element can compress the elastic element under the reaction force of the sample tube. Correspondingly, the elastic element can also elastically push against the contact element, ensuring close contact between the contact element and the sample tube. Thus, the clamping force of the contact element clamping the sample tube can be adaptively adjusted, ensuring a stable clamping of the sample tube. Furthermore, since multiple elastic elements are correspondingly connected between multiple contact elements and the displacement component, after a contact element abuts against the sample tube, each contact element can independently move in the direction of compressing its corresponding elastic element. This arrangement allows each contact element to independently compress its corresponding elastic element, enabling different deformations in each elastic element. In other words, in the aforementioned clamping device, each contact element can independently and adaptively clamp the sample tube, ensuring that each sample tube is specifically and stably clamped. Attached Figure Description

[0022] Figure 1 This is an axial view of a clamping device provided in an embodiment of the present invention.

[0023] Reference numerals: 10, clamping device; 100, displacement assembly; 110, pushing component; 120, connecting component; 200, contact component; 210, body; 211, first clamping part; 220, wing plate; 300, elastic component; 400, base; 410, guide shaft; 420, mating component; 421, second clamping part; 430, base plate; 440, first support plate; 450, second support plate; 500, driving component; 600, cup holder; 700, first buffer pad; 20, sample tube. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] See Figure 1 Figure 1 shows an axial view of the clamping device according to an embodiment of the present invention. The clamping device 10 provided in this embodiment can adaptively clamp multiple sample tubes 20, that is, the clamping device 10 can provide appropriate clamping force to ensure that each sample tube 20 is firmly clamped. The clamping device 10 includes a displacement component 100, multiple contact members 200, and multiple elastic members 300. The multiple contact members 200 are all connected to the displacement component 100 and move with the displacement component 100 to respectively clamp the multiple sample tubes 20. The multiple elastic members 300 are correspondingly connected between the multiple contact members 200 and the displacement component 100, that is, one end of each of the multiple elastic members 300 is connected to the displacement component 100, and the other end of each of the multiple elastic members 300 is connected to its corresponding contact member 200. When the multiple contact members 200 abut against the sample tube 20, they move independently in the direction of compressing the elastic member 300.

[0031] In the aforementioned clamping device 10, the displacement component 100 can drive multiple contact members 200 to move, thereby correspondingly clamping multiple sample tubes 20. When the contact member 200 contacts and abuts against the sample tube 20, the contact member 200 can compress the elastic member 300 under the reaction force of the sample tube 20. Correspondingly, the elastic member 300 can also elastically push against the contact member 200, so that the contact member 200 and the sample tube 20 maintain close contact. In this way, the clamping force of the contact member 200 clamping the sample tube 20 can be adaptively adjusted, ensuring that the contact member 200 firmly clamps the sample tube 20.

[0032] Furthermore, since multiple elastic elements 300 are correspondingly connected between multiple contact elements 200 and the displacement assembly 100, when a contact element 200 abuts against the sample tube 20, the multiple contact elements 200 can independently compress their corresponding elastic elements 300. That is, each contact element 200 can independently compress its corresponding elastic element 300, allowing each elastic element 300 to have different deformations. In other words, in the above-mentioned clamping device 10, each contact element 200 can independently and adaptively clamp the sample tube 20, so that each sample tube 20 can be specifically and securely clamped, and multiple sample tubes 20 can be clamped simultaneously.

[0033] Furthermore, multiple contacts 200 are connected to the displacement assembly 100 to move with the displacement assembly 100, meaning the displacement assembly 100 can simultaneously drive multiple contacts 200 to move closer to or further away from the sample tube 20. Compared to independently driving the contacts 200 through a separate power source, this arrangement reduces the power source required within the clamping device 10, making the overall structure of the clamping device 10 simpler, more compact, and less expensive.

[0034] Regarding the compression of the elastic element 300 by the contact element 200, it should be noted that the contact element 200 can passively compress the elastic element 300. Specifically, when the contact element 200 contacts and abuts against the sample tube 20, the position of the contact element 200 relative to the sample tube 20 remains unchanged. At this time, the displacement assembly 100 is still moving, thereby reducing the distance between the displacement assembly 100 and the contact element 200, thus compressing the elastic element 300 connected between the contact element 200 and the displacement assembly 100.

[0035] Please see Figure 1In one embodiment, the clamping device 10 further includes a base 400, on which a guide shaft 410 is provided. The displacement component 100, the elastic element 300, and the contact element 200 are sequentially and movably sleeved on the guide shaft 410. This arrangement serves two purposes: firstly, the guide shaft 410 can limit and guide the movement of the contact element 200, allowing it to move in a desired direction to a desired position, ensuring accurate alignment with the sample tube 20. Secondly, by simultaneously sleeved the displacement component 100 and the contact element 200 on the guide shaft 410, their relative positions can be defined, allowing the contact element 200 to move stably with the displacement component 100.

[0036] Meanwhile, the elastic element 300 is sleeved on the guide shaft 410, which can limit the axial position of the elastic element 300. That is, when the contact element 200 moves in the direction of compressing the elastic element 300, under the restriction of the guide shaft 410, both ends of the elastic element 300 can stably abut against the displacement component 100 and the contact element 200 respectively, so as to stably provide elastic force to the contact element 200 and ensure that the contact element 200 self-adapts to clamping.

[0037] Of course, in some embodiments, the elastic element 300 may not be fitted onto the guide shaft 410. Certain connection limiting structures may be provided on the side of the displacement assembly 100 near the contact element 200, or between the displacement assembly 100 and the contact element 200, to limit the position of the elastic element 300.

[0038] Furthermore, the elastic element 300 is located between the displacement assembly 100 and the contact element 200. Therefore, when the displacement assembly 100 moves towards the contact element 200, the elastic element 300 can push the contact element 200 to move, causing the contact element 200 to move closer to the sample tube 20. In other words, placing the elastic element 300 between the displacement assembly 100 and the contact element 200 also allows for transmission, transmitting the movement of the displacement assembly 100 to the contact element 200.

[0039] The elastic element 300 can be a compression spring, which elastically abuts against the displacement component 100 and the contact element 200.

[0040] Please continue reading. Figure 1In one embodiment, the base 400 is further provided with a mating member 420. The contact member 200 moves toward the mating member 420 to clamp the sample tube 20 together with the mating member 420, and the contact member 200 compresses the elastic member 300 in a direction away from the mating member 420. Specifically, the mating member 420 may be located on the side of the contact member 200 away from the displacement assembly 100, and the sample tube 20 may be placed between the contact member 200 and the mating member 420. When the displacement assembly 100 moves toward the contact member 200, the elastic member 300 can push the contact member 200 to move together, so as to move toward the mating member 420.

[0041] When the contact member 200 contacts the sample tube 20, the mating member 420 supports the sample tube 20 in a stable position. The sample tube 20 then reacts with the contact member 200, preventing further displacement of the contact member 200. Meanwhile, the displacement component 100 continues to move closer to the contact member 200, thus reducing the distance between the displacement component 100 and the contact member 200. This allows the contact member 200 to compress the spring away from the mating member 420. In this way, the elastic member 300 generates an elastic force that keeps the contact member 200 in close contact with the sample tube 20.

[0042] When the displacement component 100 moves away from the contact member 200, the displacement component 100 can pull the contact member 200 to move accordingly, so that the contact member 200 is separated from the sample tube 20, and the elastic member 300 relaxes.

[0043] In some embodiments, the mating member 420 may be integrally formed with the base 400, or the contact member 200 may directly mate with the base 400 to jointly clamp the sample tube 20.

[0044] Please continue reading. Figure 1 In one embodiment, the displacement assembly 100 includes a pusher 110 and a connector 120. The pusher 110 is movably mounted on the guide shaft 410, and an elastic member 300 is sleeved on the guide shaft 410, with both ends of the elastic member 300 elastically abutting against the pusher 110 and the contact member 200, respectively. When the pusher 110 moves toward the contact member 200, the elastic member 300 pushes the contact member 200 to move along with it, so as to approach and press the sample tube 20.

[0045] The connector 120 is connected to the pusher 110, and the connector 120 abuts against the side of the contact 200 away from the pusher 110. Thus, when the pusher 110 moves away from the contact 200, because the connector 120 abuts against the contact 200, the connector 120 can pull the contact 200 to move together with the pusher 110, so as to move away from the mating member 420 and release the sample tube 20.

[0046] It should be noted that the connector 120 and the contact 200 are detachable. Thus, the connector 120 does not restrict the contact 200 from moving towards the pusher 110. In other words, with the pusher 110 as a reference, when the contact 200 contacts the sample tube 20, the contact 200 can move relative to the pusher 110 towards it. That is, by setting the connector 120 and contact 200 to abut away from the pusher 110 and allowing them to be detachable, the contact 200 can not only move with the displacement assembly 100, but also, under the reaction force of the sample tube 20, generate a displacement towards the displacement assembly 100 to compress the elastic member 300.

[0047] Please continue reading. Figure 1 In one embodiment, the contact 200 includes a body 210 and at least one wing 220 connected to the body 210. The portion of the connector 120 away from the pusher 110 abuts against a side of the wing 220 away from the pusher 110 to pull the contact 200 to move away from the mating member 420 along with the pusher 110.

[0048] In one embodiment, the number of connectors 120 corresponds to the number of contacts 200, and one connector 120 is connected to all the wing plates 220 on the same contact 200 to ensure the independence of movement between the individual contacts 200. Of course, in some embodiments, multiple connectors 120 may be provided to correspond to one contact 200.

[0049] Please continue reading. Figure 1 In one embodiment, the base 400 includes a base plate 430, a first support plate 440, and a second support plate 450. Both the first support plate 440 and the second support plate 450 are connected to the base plate 430 and are arranged facing each other. The two ends of the guide shaft 410 are respectively connected to the first support plate 440 and the second support plate 450. Specifically, the mating member 420 can be fixedly mounted on the second support plate 450, and one end of the guide shaft 410 can also pass through the mating member 420 to allow the contact member 200 to move along the guide shaft 410 to a position aligned with the mating member 420.

[0050] Please see Figure 1 In one embodiment, there are multiple guide shafts 410, which are connected side-by-side and evenly spaced on the base 400, that is, multiple guide shafts 410 are connected side-by-side and evenly spaced between the first support plate 440 and the second support plate 450. A contact member 200 can be fitted onto two or more guide shafts 410 to prevent the contact member 200 from deflecting relative to the guide shaft 410.

[0051] In one embodiment, all guide shafts 410 may be movably fitted with pushers 110 so that each guide shaft 410 can guide and limit each contact 200.

[0052] Please see Figure 1 In one embodiment, the clamping device 10 further includes a drive member 500. The drive member 500 is connected to the guide shaft 410 to drive the guide shaft 410 to rotate. The guide shaft 410 is provided with a first threaded structure (not shown, the same below), and the push member 110 is provided with a second threaded structure (not shown, the same below). The first threaded structure and the second threaded structure cooperate to drive the push member 110 to move when the guide shaft 410 rotates. That is, when the guide shaft 410 rotates, the push member 110 can be driven to move along the axial direction of the guide shaft 410 through the cooperation of the first threaded structure and the second threaded structure, so as to drive the contact member 200 to move accordingly, so that the contact member 200 cooperates with the mating member 420 to realize the opening action and the clamping action.

[0053] Understandably, the contact element 200 clamps the sample tube 20 with the elastic force of the elastic element 300, which can also effectively reduce the motor seizure failure rate in the drive element 500.

[0054] In one embodiment, the guide shaft 410 is provided with a first thread structure only in a portion of the area to avoid the thread structure affecting the guiding and limiting effect of the guide shaft 410 on the contact member 200.

[0055] In one embodiment, the first thread structure can be an external thread structure, and the second thread structure can be a corresponding internal thread structure. That is, the guide shaft 410 can be a lead screw.

[0056] Of course, in some embodiments, the clamping device 10 may also include a transmission component (not shown in the figures, the same below). The driving component 500 is connected to the transmission component, and the transmission component is connected to the pushing component 110. In this way, the movement of the driving component 500 can be transmitted to the pushing component 110 through the transmission component. The transmission method between the transmission component and the pushing component 110 can be a gear and rack drive, a cam drive, etc.

[0057] In other embodiments, the drive member 500 can also be directly connected to the push member 110 to drive the push member 110 to reciprocate. In this case, the drive member 500 can be a linear actuator such as a cylinder, hydraulic cylinder, or electric push rod.

[0058] Please see Figure 1In one embodiment, the contact member 200 and the mating member 420 are respectively recessed on their opposing sides, with a first clamping portion 211 and a second clamping portion 421 for adapting to clamp the sample tube 20. Specifically, the first clamping portion 211 and the second clamping portion 421 can be configured as groove-shaped structures such as V-grooves or arc grooves that can adapt to the shape of the sample tube 20.

[0059] Please continue reading. Figure 1 In one embodiment, both the first clamping part 211 and the second clamping part 421 are provided with a first buffer pad 700 on the side closest to each other to prevent the sample tube 20 from being damaged and to more tightly support the position of the sample tube 20. Specifically, the first buffer pad 700 is a flexible part that can adapt to deformation under compression. The first buffer pad 700 can be made of flexible materials such as rubber or silicone.

[0060] Please continue reading. Figure 1 In one embodiment, the clamping device 10 further includes a cup holder 600, which is hollow to accommodate the sample tube 20. It is understood that the cup holder 600 can initially position the sample tube 20 so that the contact member 200 and the mating member 420 can cooperate to clamp the sample tube 20.

[0061] The number of cup holders 600 can correspond to the number of contact elements 200. Multiple cup holders 600 are used one-to-one to accommodate sample tubes 20 for initial positioning of all sample tubes 20.

[0062] The cup holder 600 can be specifically set on the base, and the projections of the contact member 200 and the mating member 420 on the base are respectively located on both sides of the cup holder 600.

[0063] An embodiment of the present invention also provides a detection device, which includes a clamping device 10, a cap-opening device, a gripping device, and a detection device. The gripping device is used to grip the sample tube 20 and place it within the cup holder 600 of the clamping device 10. The clamping device 10 can clamp the sample tube 20, and the cap-opening device can open the cap of the sample tube 20 located on the clamping device 10. The detection device is used to detect the substance inside the sample tube.

[0064] In one embodiment, the clamping device 10 further includes a second buffer pad (not shown, the same below), which is disposed on the inner wall of the cup holder 600. The second buffer pad is used to adapt to abut the sample tube 20. It is understood that when the gripping device places the sample tube 20 into the cup holder 600, it usually also includes a pressing action to ensure that all sample tubes 20 are within the same preset height, so that the contact member 200 and the mating member 420 can cooperate with each other for clamping. By providing a second buffer pad on the inner wall of the cup holder 600, when the sample tube 20 is inserted into the cup holder 600, the second buffer pad can cushion the sample tube 20, preventing the sample tube 20 from directly contacting the bottom wall and / or side wall of the cup holder 600 and causing impact damage.

[0065] The second cushioning pad can be made of materials such as pearl cotton or felt.

[0066] Specifically, the cup holder 600 includes a bottom wall and an inner peripheral wall, and a second buffer pad may be provided on both the bottom wall and the inner peripheral wall to cushion and protect the sample tube 20. Of course, in some embodiments, the second buffer pad may only be provided on the bottom wall of the cup holder 600.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A clamping device, characterized in that, The clamping device includes: Displacement components; Multiple contact elements are connected to the displacement assembly and move with the displacement assembly to correspondingly clamp multiple sample tubes; Multiple elastic elements are correspondingly connected between multiple contact elements and displacement components, and the multiple contact elements independently compress the elastic elements when they abut against the sample tube. Base; The base is provided with a mating member, and the contact member moves toward the mating member to clamp the sample tube together with the mating member. The contact member can compress the elastic member in a direction away from the mating member. The base is provided with a guide shaft, one end of which is provided with the mating member. The displacement component, the elastic member, and the contact member are movably sleeved on the guide shaft in sequence. The base includes a base plate, a first support plate, and a second support plate. The first support plate and the second support plate are both connected to the base plate and are arranged facing each other. The mating member is fixed to the second support plate. The two ends of the guide shaft are respectively connected to the first support plate and the second support plate. The displacement component includes a pusher that is movably mounted on the guide shaft. An elastic member is sleeved on the guide shaft, and both ends of the elastic member elastically abut against the pusher and the contact member, respectively. The guide shaft is provided with a first thread structure, and the pusher is provided with a second thread structure. The first thread structure and the second thread structure cooperate to drive the pusher to move when the guide shaft rotates.

2. The clamping device according to claim 1, characterized in that, The number of guide shafts is multiple, and the multiple guide shafts are connected side by side and evenly spaced between the first support plate and the second support plate.

3. The clamping device according to claim 1, characterized in that, The displacement assembly further includes a connector that is connected to the pusher and abuts against a side of the contact member away from the pusher.

4. The clamping device according to claim 3, characterized in that, The connector and the contact can be detached.

5. The clamping device according to claim 4, characterized in that, The contact member includes a body and at least one wing plate connected to the body. The portion of the connector away from the pusher abuts against the side of the wing plate away from the pusher, so as to pull the contact member to move away from the mating member along with the pusher.

6. The clamping device according to claim 5, characterized in that, The number of connectors corresponds to the number of contacts, and one connector connects to all the wing plates on the same contact.

7. The clamping device according to claim 1, characterized in that, It also includes a drive unit connected to the guide shaft to drive the guide shaft to rotate.

8. The clamping device according to claim 1, characterized in that, The contact and the mating part are respectively recessed on their opposite sides, with a first clamping part and a second clamping part for adapting and clamping the sample tube.

9. The clamping device according to claim 1, characterized in that, It also includes a cup holder, the cup holder being hollow to accommodate the sample tube; and A second buffer pad is disposed on the inner wall of the cup holder, and the second buffer pad is used to fit and abut against the sample tube.

10. A testing device, characterized in that, The detection equipment includes: The clamping device as described in any one of claims 1 to 9.

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