Clamping mechanism and slicing machine

Abstract

The utility model discloses a clamping mechanism and a slicing machine. The clamping mechanism comprises a sample support, a fixing base, a second clamping piece and a locking device. The sample support is used for bearing a sample, the fixed seat comprises a first clamping piece, the first clamping piece comprises a main body part and a first clamping part, the first clamping part is connected to the main body part and protrudes out of the main body part, the second clamping piece comprises a handle and a second clamping part, the handle is movably connected to the fixed seat, the second clamping part is connected to the handle, and the second clamping part protrudes out of the main body part. The second clamping part is arranged above the first clamping part and located above the first clamping part, the sample support can be clamped between the first clamping part and the second clamping part, the handle is driven upwards, the second clamping part can move away from the first clamping part, and the second clamping part can be reset and locked under the action of self gravity or the combined action of the self gravity and the locking device; and the handle does not need to be pulled towards the blade by a hand, so that the hand of an operator is prevented from touching the blade in the handle pulling process, and the use safety is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biological slicing, in particular to a clamping mechanism and a slicing machine. Background Art

[0002] Biological tissue sections are a type of pathological specimen commonly used in disease diagnosis. In some technologies, biological tissues are sliced ​​by frozen sections. For frozen sections, fresh samples are usually taken directly, coated with embedding agents, and then placed on a sample tray for quick freezing. After freezing, the sample tray is mounted on a clamping mechanism and sliced ​​using a slicer. The slicer slices by driving the clamping mechanism downward. When the clamping mechanism moves downward to the set position, the sample is cut off by the blade and adheres to the blade. Finally, the sample is adhered to the slide and then tested using the equipment. In the related art, the clamping mechanism includes a handle and a clamping member that are interconnected. The clamping member is opened by pulling the handle downward to take and place the sample. However, since the handle is located at the top of the clamping mechanism, after the slice is completed, the position of the handle is still higher than the height of the blade. Therefore, when the handle is pulled downward, the operator's hand may accidentally touch the blade, causing a safety hazard. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a clamping mechanism that can be used for a slicer to improve the safety of the slicer when in use.

[0004] The utility model also provides a slicer comprising the clamping mechanism.

[0005] The clamping mechanism according to the first embodiment of the utility model includes: a sample holder, a fixing seat, a second clamping member and a locking device.

[0006] The sample holder is used to carry samples. The fixing seat includes a first clamping member, which includes a main body and a first clamping portion. The first clamping portion is connected to the main body and protrudes from the main body. The second clamping member includes a handle and a second clamping portion. The handle is movably connected to the fixing seat. The second clamping portion is connected to the handle and is located above the first clamping portion. The sample holder can be abutted against the main body and clamped between the first clamping portion and the second clamping portion. The handle is driven upward to move the second clamping portion away from the first clamping portion. The locking device is used to keep the second clamping member in a state of abutting against the sample holder.

[0007] The clamping mechanism according to the embodiment of the utility model has at least the following beneficial effects:

[0008] In this embodiment, the handle is movably connected to the fixed seat, and the second clamping part can be moved away from the first clamping part by pulling the handle upward to clamp or remove the sample holder. Therefore, when the clamping mechanism of this embodiment is used in a slicer, in the process of clamping or removing the sample holder, the handle can be driven in a direction away from the blade to move the second clamping part away from the first clamping part, and the second clamping part can be reset by moving toward the blade under its own gravity or under the combined action of its own gravity and the locking device. Therefore, compared with the traditional technology, this embodiment does not need to drive the handle toward the blade by hand, thereby avoiding the operator's hand touching the blade during the process of pulling the handle, thereby improving safety during use.

[0009] According to some embodiments of the present invention, one end of the handle is rotatably connected to the fixing seat.

[0010] According to some embodiments of the present invention, the locking device includes an elastic member, one end of which is connected to the fixing seat, and the other end of which is connected to the second clamping member, so as to apply force to the second clamping member to press against the sample holder.

[0011] According to some embodiments of the present invention, the side of the sample holder also has a clamping groove and a clamping port connected to the clamping groove, the clamping port is oriented perpendicular to the first direction, and at least one of the first clamping part and the second clamping part can be inserted into the clamping groove.

[0012] According to some embodiments of the present invention, the clamping groove is arranged in a ring shape on the side of the sample holder around a first direction, and the first direction is a direction in which the first clamping portion protrudes from the main body.

[0013] According to some embodiments of the present invention, the clamping mechanism also includes a shell, the shell having a accommodating cavity and a clamping hole connected to the accommodating cavity, the fixing seat and the locking device are both accommodated in the accommodating cavity, the first clamping portion is exposed from the clamping hole, and the sample holder abuts against the first clamping portion from the clamping hole.

[0014] According to some embodiments of the present invention, the fixing seat further includes a cooling element, and the cooling element is connected to the first clamping member.

[0015] According to some embodiments of the present invention, the clamping mechanism further includes a heat insulating member, and the heat insulating member is clamped between the shell and the fixing seat.

[0016] According to some embodiments of the present invention, an upper edge of the handle is not higher than an upper edge of the fixing base.

[0017] A slicer according to an embodiment of the second aspect of the utility model comprises: the clamping mechanism described in the embodiment of the first aspect.

[0018] The slicer according to the embodiment of the utility model has at least the following beneficial effects:

[0019] The clamping mechanism of the first embodiment can move the second clamping part away from the first clamping part by pulling the handle upwards to clamp or remove the sample holder. Therefore, in the process of clamping or removing the sample holder, the handle can be driven in a direction away from the blade to move the second clamping part away from the first clamping part, and the second clamping part can be reset by moving toward the blade under its own gravity or under the combined action of its own gravity and the locking device. Therefore, compared with the traditional technology, this embodiment does not need to drive the handle toward the blade by hand, thereby avoiding the operator's hand touching the blade during the process of pulling the handle, thereby improving safety during use.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 It is a structural schematic diagram of the clamping mechanism of the first embodiment of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the middle mounting seat, the handle and the locking device;

[0024] Figure 3 for Figure 2 A schematic structural diagram of the first clamping member;

[0025] Figure 4 for Figure 1 A cross-sectional view of

[0026] Figure 5 for Figure 4 A schematic diagram of the structure of the middle sample holder;

[0027] Figure 6 for Figure 2 Exploded view of;

[0028] Figure 7 It is a schematic diagram of another clamping mechanism of the first aspect of the embodiment of the utility model;

[0029] Figure 8 for Figure 7 Exploded view of;

[0030] Fig. 9 for Figure 7 sectional view of .

[0031] Reference numerals:

[0032] Sample holder 100, receiving groove 110, protrusion 120, clamping groove 130, clamping opening 140;

[0033] The fixing seat 200, the first clamping member 210, the main body 211, the first clamping portion 212, the clamping portion 2121, the limiting groove 213, the mounting seat 220, the mounting groove 221, the refrigeration member 230, and the heat preservation member 240;

[0034] A second clamping member 300, a handle 310, and a second clamping portion 320;

[0035] Locking device 400, elastic member 410, connecting member 420;

[0036] Housing 500, accommodating cavity 510, clamping hole 520, notch 530;

[0037] Thermal insulation 600. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] Biological tissue sections are a type of pathological specimen commonly used in disease diagnosis. In some technologies, biological tissues are sliced ​​by frozen sections. For frozen sections, fresh samples are usually taken directly, coated with embedding agents, and then placed on a sample holder for quick freezing. After freezing, the sample holder is mounted on a clamping mechanism and sliced ​​using a slicer. The slicer slices by driving the clamping mechanism downward. When the clamping mechanism moves downward to the set position, the sample is cut off by the blade and adheres to the blade. Finally, the sample is adhered to a glass slide and then tested using the equipment.

[0043] In the related art, the clamping mechanism includes a handle and a clamping member that are interconnected. The clamping member is driven to move by pulling the handle downward to take and place the sample. However, since the handle is located at the top of the clamping mechanism, after slicing, the position of the handle is still higher than the height of the blade. Therefore, when the handle is pulled downward, the operator's hand may accidentally touch the blade, causing a safety hazard.

[0044] Based on the above problems, the first embodiment of the present invention proposes a clamping mechanism, referring to Figures 1 to 3 , Figure 1 This is a schematic structural diagram of the clamping mechanism of the first embodiment of the utility model. Figure 2 for Figure 1 Schematic diagram of the structure of the mounting seat, handle and locking device. Figure 3 for Figure 2 The structural schematic diagram of the first clamping member in FIG. 1 , the clamping mechanism of this embodiment includes: a sample holder 100 , a fixing seat 200 , a second clamping member 300 and a locking device 400 .

[0045] The sample holder 100 is used to hold the sample tissue, and the sample holder 100 may be a cylindrical structure (eg Figure 1 As shown, but not limited thereto, the surface of the sample holder 100 is provided with a receiving groove 110, for example, and the receiving groove 110 is used to receive the sample tissue. Furthermore, the receiving groove 110 is also provided with a plurality of protrusions 120 to increase the connection area between the sample tissue and the sample holder 100, thereby increasing the connection stability between the sample tissue and the sample holder 100 and preventing the sample tissue from falling during the slicing process.

[0046] The fixing base 200 includes a first clamping member 210, and the first clamping member 210 includes a main body 211 and a first clamping portion 212, and the first clamping portion 212 is connected to the main body 211 and protrudes from the main body 211 along a first direction. The fixing base 200 can be an integrated structure, or a split structure, for example, the fixing base also includes a mounting seat 220, the first clamping member 210 is connected to the mounting seat 220, the mounting seat 220 is used to connect to the microtome body, and the first clamping member 210 is used to clamp the sample holder 100. Specifically, during use, since the first clamping member 210 needs to be repeatedly used in conjunction with the sample holder 100, after long-term use, the first clamping member 210 is damaged due to pressure and friction. In this embodiment, only the first clamping member 210 can be replaced without replacing the entire fixing seat 200 to save costs. On the other hand, according to usage requirements, the fixing seat 200 and the first clamping member 210 can also be made of different materials. For example, in order to meet the connection strength between the clamping mechanism of this embodiment and the slicer body, the mounting seat 220 can be made of a relatively high-strength metal material, such as steel and aluminum alloy. In order to reduce mutual wear and crushing between the first clamping member 210 and the sample holder 100, wear-resistant materials can be selected, such as steel alloy, ceramics, and polytetrafluoroethylene (PTFE), thereby increasing the service life of the clamping mechanism of this embodiment.

[0047] The second clamping member 300 includes a handle 310 and a second clamping portion 320. The handle 310 may be an integrated structure or a split structure, that is, the handle 310 is composed of multiple parts. The handle 310 is movably connected to the fixing seat 200 by a rotation connection or a movable connection, so that the second clamping portion 320 can move relative to the first clamping portion 212, thereby adjusting the distance between the second clamping portion 320 and the first clamping portion 212 to achieve clamping and releasing of the sample holder 100. In addition, the second clamping portion 320 is located above the first clamping portion 212, and the operator can move the second clamping portion 320 away from the first clamping portion 212 by driving the handle 310 upward. For example, the handle 310 is movably connected to the mounting seat 220 through a slider and a slide rail. During the clamping process, the handle 310 is moved upward to increase the distance between the second clamping portion 320 and the first clamping portion 212, and then the sample holder 100 is placed between the first clamping portion 212 and the second clamping portion 320 and abuts against the main body 211. The handle 310 can move downward by its own weight or by the combined action of its own weight and the locking device, so that the second clamping portion 320 abuts against the side of the sample holder 100 away from the first clamping portion 212, and the position of the second clamping member 300 is locked by the locking device 400, so that the second clamping member 300 remains in a state of abutting against the sample holder 100. Alternatively, in some embodiments, one end of the handle 310 is rotatably connected to the fixing seat 200, and the second clamping portion 320 is connected to the side of the handle 310. Specifically, the handle 310 has a first end and a second end relative to each other, the first end is rotatably connected to the mounting base 220, and the second end protrudes from the side of the fixing base 200 so that the operator can hold it to drive the second end to rotate around the first end, thereby realizing the movement of the second clamping portion 320 to adjust the distance between the second clamping portion 320 and the first clamping portion 212. The structure is simple and the operation is convenient.

[0048] The locking device 400 is, for example, a latch or a screw. Specifically, taking the locking device 400 as a pin as an example, during use, the operator drives the handle 310 upward to move the second clamping portion 320 away from the first clamping portion 212. After the sample holder 100 is placed, the handle 310 moves downward under its own gravity to make the second clamping portion 320 abut against the side of the sample holder 100 away from the first clamping portion 212. At this time, the locking hole on the handle 310 is aligned with the locking hole on the fixing seat 200, and then the latch is inserted into the two locking holes to lock the position of the handle 310, so that the second clamping member 300 remains in a state of abutting against the sample holder 100. Further, the handle 310 can be provided with a counterweight to improve the reliability of the handle.

[0049] Alternatively, the tightening device 400 includes an elastic member 410, which may be any elastic structure such as a tension spring, a compression spring, and a rubber band, and one end of the elastic member 410 is indirectly (eg Figure 1 The middle locking device 400 further includes a connecting member 420, the connecting member 420 is connected to the fixing base 200, the elastic member 410 is connected to the connecting member 420) or directly connected to the fixing base 200, and the other end is connected to the second clamping member 300, so as to make the second clamping member 300 bear force and press against the sample holder 100. Specifically, when the elastic member 410 is configured as a tension spring (such as Figure 1 As shown in FIG. 1 , one end of the tension spring is connected to the second clamping member 300, and the other end is connected to the fixing seat 200 and is located below the second clamping member 300. During use, the second clamping member 300 is driven upward, the tension spring is stretched, and when the second clamping member 300 is released, the second clamping member 300 can automatically reset and press against the sample holder 100 under the tension of the tension spring. When the elastic member 410 is configured as a compression spring, one end of the compression spring is connected to the second clamping member 300, and the other end is connected to the fixing seat 200 and is located above the second clamping member 300. During use, the second clamping member 300 is driven upward, the compression spring is compressed, and when the second clamping member 300 is released, the second clamping member 300 can automatically reset and press against the sample holder 100 under the thrust of the compression spring. It can be seen that the present embodiment, by providing the elastic member 410, can not only facilitate the automatic resetting of the handle 310 to improve the reliability of the clamping mechanism of the present embodiment, but can also utilize the elastic member 410 to achieve automatic locking of the position of the handle 310 without the need for performing additional locking steps, thereby making the clamping mechanism of the present embodiment more convenient to use.

[0050] As can be seen from the above, in the present application, the second clamping portion 320 can be moved away from the first clamping portion 212 by pulling the handle 310 upwards to clamp or remove the sample holder 100, and the handle 310 can be automatically reset without the operator's manual operation. Therefore, when the clamping mechanism is used in a slicer, in the process of clamping or removing the sample holder 100, the handle 310 can be driven in a direction away from the blade to make the second clamping portion 320 away from the first clamping portion 212. After the sample is taken and placed, the handle 310 can be automatically reset by its own weight or under the elastic force of the elastic member 410. Therefore, during use, the operator does not need to drive the handle 310 toward the blade by hand, thereby avoiding the operator's hand from touching the blade during the process of pulling the handle 310, thereby improving safety during use.

[0051] It should be noted that the first clamping portion 212 is not limited to being provided with only one, and can also be provided with any number such as two, three or four, as long as it can clamp the sample holder 100 together with the second clamping portion 320. Further, when the sample holder 100 is in a cylindrical structure, the first clamping portion 212 is limited to form a limiting groove 213 with an opening facing upward (such as Figure 1 and Figure 3 As shown, the first clamping member 210 is provided with two first clamping portions 212 spaced apart from each other, and a limiting groove 213 is defined between the two first clamping portions 212, or the first clamping member 210 is provided with one first clamping portion 212, and the first clamping portion 212 is provided with a limiting groove 213 with an opening facing the limiting groove, and the lower edge of the sample holder 100 can be inserted into the limiting groove 213, thereby supporting and positioning the sample holder 100, thereby improving the stability of the sample holder 100.

[0052] Reference Figures 3 to 5 , Figure 4 for Figure 1 A cross-sectional view of Figure 5 for Figure 4 In the structural diagram of the sample holder, in some embodiments, the side of the sample holder 100 further has a clamping groove 130 and a clamping port 140 (such as Figure 5 ), the orientation of the clamping opening 140 is perpendicular to the first direction, and at least one of the first clamping portion 212 and the second clamping portion 320 can be inserted into the clamping groove 130. Specifically, for example, during the rotation of the second clamping portion 320 toward the first clamping portion 212, the front end of the second clamping portion 320 can extend from the clamping opening 140 into the clamping groove 130, thereby limiting the movement of the sample holder 100 along the first direction, thereby locking the sample holder 100 and improving the stability of the sample holder 100 clamped between the first clamping portion 212 and the second clamping portion 320. Similarly, in some embodiments, the first clamping portion 212 has a clamping portion 2121 protruding toward the sample holder 100, and the clamping portion 2121 can be inserted from the clamping opening 140 into the clamping groove 130, thereby limiting the movement of the sample holder 100 along the first direction.

[0053] Based on the above embodiment, along the opening direction of the clamping opening 140, the distance between the side wall of the clamping groove 130 that is away from the first direction and the main body 211 gradually decreases (eg Figure 4 As shown), when the first clamping portion 212 or the second clamping portion 320 abuts against the side wall, a component force opposite to the first direction can be applied to the side wall, thereby pressing the sample holder 100 against the main body 211 to improve the stability of the sample holder 100 when being clamped.

[0054] Reference Figure 5In some embodiments, the clamping groove 130 is annularly arranged on the side of the sample holder 100 around the first direction, and the first direction is the direction in which the first clamping portion 212 protrudes from the main body 211. Therefore, during the clamping process of the sample holder 100, it is only necessary to extend the sample holder 100 between the first clamping portion 212 and the second clamping portion 320, and then the clamping portion 2121 can be extended into the clamping groove 130 by moving the sample holder 100 downward relative to the first clamping portion 212, and the second clamping portion 320 can be extended into the clamping groove 130 by moving the second clamping portion 320 toward the sample holder 100, without adjusting the position of the clamping groove 130 in the circumferential direction of the sample holder 100, so that the clamping mechanism of this embodiment is more convenient to use.

[0055] Reference Figure 6 , Figure 6 for Figure 2 , in some embodiments, the fixing seat 200 further includes a cooling element 230, which is connected to the first clamping member 210. For example, the mounting seat 220 has a mounting groove 221, and the cooling element 230 is clamped in the mounting groove 221 and clamped between the mounting seat 220 and the first clamping member 210 to cool the first clamping member 210, and then cool the sample holder 100, so that the sample tissue on the sample holder 100 is kept in a solidified state to ensure normal slicing of the sample tissue.

[0056] Reference Figures 7 to 9 , Figure 7 This is a schematic diagram of another clamping mechanism of the first embodiment of the utility model. Figure 8 for Figure 7 Exploded view of Fig. 9 for Figure 7 , in some embodiments, the clamping mechanism further comprises a housing 500, the housing 500 comprises a receiving cavity 510 and a clamping hole 520 connected to the receiving cavity 510, the fixing seat 200 and the locking device 400 are both accommodated in the receiving cavity 510, the first clamping portion 212 is exposed from the clamping hole 520, and the sample holder 100 abuts against the first clamping portion 212 from the clamping hole 520. On the one hand, the housing 500 can play a certain protective role for the fixing seat 200 and the locking device 400, so as to reduce the contact between the external dust and the fixing seat 200 and the locking device 400, thereby facilitating the maintenance of the clamping mechanism of the present embodiment; on the other hand, covering the fixing seat 200 and the locking device 400 in the housing 500 can make the appearance of the clamping mechanism of the present embodiment more concise and beautiful. In addition, the housing 500 also comprises a notch 530 connected to the receiving cavity 510, and the notch 530 is used for part of the handle 310 to extend out for the operator to hold.

[0057] Reference Figure 8 and Fig. 9On the basis of the above embodiment, the clamping mechanism further includes a heat insulating member 600, which is clamped between the housing 500 and the fixing seat 200. Specifically, for example, the housing 500 is connected to the mounting seat 220 by a fastener such as a screw, and a heat insulating member 600 (such as a heat insulating member 600) is provided between the mounting seat 220 and the housing 500. Figure 8 ), thereby reducing the heat transfer between the housing 500 and the mounting base 220, thereby reducing the energy consumption of the refrigeration element 230. In addition, a heat insulating member 600 (as shown) is provided between the edge of the clamping hole 520 of the housing 500 and the first clamping member 210. Fig. 9 As shown in FIG. 5 ), the heat transfer between the housing 500 and the first clamping member 210 is reduced, and the energy consumption of the refrigeration member 230 is further reduced. Similarly, in some embodiments, a heat preservation member 240 is further provided, and the heat preservation member 240 is disposed around the side of the refrigeration member 230 (as shown in FIG. Figure 6 and Fig. 9 ), thereby reducing the heat transfer between the air and the refrigeration element 230, thereby reducing the energy consumption of the refrigeration element 230.

[0058] In the prior art, the blade is tilted, and after slicing, the sample tissue adheres to the surface of the blade that is away from the clamping mechanism. The operation of transferring the sample tissue to the slide is usually to use the slide to move along the blade surface from top to bottom to adhere the sample tissue on the blade surface to the slide. Therefore, in this process, if the height of the clamping mechanism is too high, it will cause certain interference with the slide and affect the transfer of the sample tissue. Based on this, refer to Figure 1 In some embodiments, the upper edge of the handle 310 is not higher than the upper edge of the fixing base 200. That is, the handle 310 is located between the upper edge and the lower edge of the fixing base 200. For example, the fixing base 200 is a rectangular structure (such as Figure 1 As shown in the figure, but not limited thereto, it can also be any shape of a circle or a triangle), the handle 310 is connected to the fixing base 200 and protrudes along the horizontal side of the fixing base 200, so that the upper edge of the handle 310 is lower than the upper edge of the fixing base 200. Compared with the conventional technology in which the handle 310 is installed on the top of the fixing base 200, the overall height of the clamping mechanism of this embodiment is lower, thereby reducing interference with the slide during the sample tissue transfer process.

[0059] The slicer of the second embodiment includes: the clamping mechanism of the first embodiment. Specifically, the slicer includes a driving mechanism, a blade and a clamping mechanism, wherein the driving mechanism is connected to the clamping mechanism and is used to drive the clamping mechanism to move up and down, and the blade is used to slice the sample tissue on the sample holder 100. The clamping mechanism can move the second clamping part 320 away from the first clamping part 212 by pulling the handle 310 upward to clamp or remove the sample holder 100. Therefore, in the process of clamping or removing the sample holder 100, the handle 310 can be driven in a direction away from the blade to move the second clamping part 320 away from the first clamping part 212, and the second clamping part 300 moves toward the blade under the action of its own gravity or the combined action of its own gravity and the locking device to reset. Therefore, compared with the conventional technology, this embodiment does not need to drive the handle 310 toward the blade by hand, thereby avoiding the operator's hand touching the blade during the process of pulling the handle 310, thereby improving the safety during use.

[0060] It should be noted that, since this embodiment adopts all the technical features of the clamping mechanism of the first aspect embodiment, this embodiment has all the beneficial effects brought by the first aspect embodiment, which will not be repeated here.

[0061] The above is a detailed description of the embodiment of the utility model in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiment, and various changes can be made without departing from the purpose of the utility model within the scope of knowledge possessed by ordinary technicians in the relevant technical field. In addition, in the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A clamping mechanism, characterized in that: include: A sample tray, used for carrying samples; The fixing seat comprises a first clamping member, wherein the first clamping member comprises a main body and a first clamping portion, wherein the first clamping portion is connected to the main body and protrudes from the main body along a first direction; A second clamping member, comprising a handle and a second clamping portion, wherein the handle is movably connected to the fixing seat, and the second clamping portion is connected to the handle and is located above the first clamping portion, wherein the sample holder can be held against the main body and clamped between the first clamping portion and the second clamping portion, and the handle can be driven upward to move the second clamping portion away from the first clamping portion; The locking device is used to keep the second clamping member in a state of pressing against the sample holder.

2. The clamping mechanism according to claim 1, characterized in that: One end of the handle is rotatably connected to the fixing seat.

3. The clamping mechanism according to claim 1 or 2, characterized in that: The locking device comprises an elastic member, one end of which is connected to the fixing seat, and the other end of which is connected to the second clamping member, so as to apply force to the second clamping member to press against the sample holder.

4. The clamping mechanism according to claim 1, characterized in that: The side surface of the sample holder further has a clamping groove and a clamping opening connected to the clamping groove, the clamping opening is oriented perpendicular to the first direction, and at least one of the first clamping portion and the second clamping portion can be inserted into the clamping groove.

5. The clamping mechanism according to claim 4, characterized in that: The clamping groove is annularly arranged on a side surface of the sample holder around the first direction.

6. The clamping mechanism according to claim 1, characterized in that: The fixing seat further comprises a cooling element, and the cooling element is connected to the first clamping element.

7. The clamping mechanism according to claim 6, characterized in that: The clamping mechanism also includes a shell having a receiving cavity and a clamping hole connected to the receiving cavity, the fixing seat and the locking device are both received in the receiving cavity, the first clamping portion is exposed from the clamping hole, and the sample holder abuts against the first clamping portion from the clamping hole.

8. The clamping mechanism according to claim 7, characterized in that: The clamping mechanism further comprises a heat insulating member, and the heat insulating member is clamped between the shell and the fixing seat.

9. The clamping mechanism according to claim 1, characterized in that: The upper edge of the handle is not higher than the upper edge of the fixing seat.

10. A slicer, characterized in that Comprising the clamping mechanism as claimed in any one of claims 1 to 9.

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