阅读说明：本技术 一种基于交联聚合物的溶胀原理的微悬臂梁夹持装置 (Micro-cantilever beam clamping device based on swelling principle of cross-linked polymer ) 是由 许神剑 唐毓 闫雨琪 彭昭远 于 2019-12-24 设计创作，主要内容包括：本发明公开一种基于交联聚合物的溶胀原理的微悬臂梁夹持装置。其特征是：所述测量装置包括基台和溶胀体；所述溶胀体是由具有溶胀作用的交联聚合物制成,呈圆柱状,位于溶胀凹槽正中间,与固定凹槽下表面平齐；所述基台由矩形金属块制作而成,基台由固定凹槽、溶胀凹槽以及夹持杆三部分组成；使用夹持装置时,首先在溶胀凹槽中注入适量的液体进行预溶胀,同时将微悬臂梁放置在基台的固定凹槽中,待溶胀体溶胀后,微悬臂梁不松动时,将装置放入液体环境中,溶胀体充分溶胀胀大,对微悬臂梁进行夹持固定,将微悬臂梁稳定地固定在固定凹槽上；本发明设计合理,结构简单,操作方便,夹持稳定。(The invention discloses a micro-cantilever beam clamping device based on a swelling principle of a cross-linked polymer. The method is characterized in that: the measuring device comprises a base station and a swelling body; the swelling body is made of crosslinked polymer with swelling effect, is cylindrical, is positioned in the middle of the swelling groove and is flush with the lower surface of the fixing groove; the base station is made of a rectangular metal block and consists of a fixing groove, a swelling groove and a clamping rod; when the clamping device is used, firstly, a proper amount of liquid is injected into the swelling groove for pre-swelling, meanwhile, the micro-cantilever is placed in the fixing groove of the base station, after the swelling body swells and the micro-cantilever is not loosened, the device is placed in a liquid environment, the swelling body is fully swelled, the micro-cantilever is clamped and fixed, and the micro-cantilever is stably fixed on the fixing groove; the clamping device is reasonable in design, simple in structure, convenient to operate and stable in clamping.)

1. A micro-cantilever clamping device based on the swelling principle of crosslinked polymers, which is characterized in that: the method comprises the following steps:

the swelling body (6) is made of cross-linked polymer with swelling effect, is cylindrical, is positioned in the middle of the swelling groove (2), and is flat with the lower surface of the fixing groove (1);

the base platform (4) is made of a rectangular metal block, and the base platform (4) comprises a fixing groove (1), a swelling groove (2) and a clamping rod (3); fixed recess (1) is located base station (4) upper surface front end intermediate position, and swelling recess (2) are located fixed recess (1) below, and supporting rod (3) and base station (4) anterior segment parallel and level, and the width equals with fixed recess (1).

2. The micro-cantilever beam clamping device based on the swelling principle of the cross-linked polymer as claimed in claim 1, wherein: the swelling groove is cylindrical, the diameter of the swelling groove is larger than that of the swelling body, and the depth of the swelling groove is equal to the height of the non-swelled swelling body.

3. The micro-cantilever beam clamping device based on the swelling principle of the cross-linked polymer as claimed in claim 1, wherein: the width of the fixed groove is 2.5mm, the depth of the fixed groove is equal to the thickness of the micro-cantilever beam, and the micro-cantilever beam is suitable for being placed in any micro-cantilever beam with the width less than or equal to 2.5 mm.

4. The micro-cantilever beam clamping device based on the swelling principle of the cross-linked polymer as claimed in claim 1, wherein: the distance between the lower surface of the clamping rod and the upper surface of the swelling groove is smaller than the thickness of the micro-cantilever.

5. The micro-cantilever beam clamping device based on the swelling principle of the cross-linked polymer as claimed in claim 1, wherein: the micro-cantilever clamping device is used in a mode that firstly, a proper amount of liquid is injected into the swelling groove for pre-swelling, meanwhile, the micro-cantilever is placed in the fixing groove of the base station, after the swelling body swells and the micro-cantilever is not loosened, the device is placed in a liquid environment, the swelling body fully swells and swells, the micro-cantilever is clamped and fixed, and the micro-cantilever is stably fixed on the fixing groove.

6. The micro-cantilever clamping device based on the swelling principle of the cross-linked polymer as claimed in claim 5, wherein: the liquid is the liquid in the liquid reaction tank.

Technical Field

The invention relates to the technical field of clamping devices, in particular to a micro-cantilever beam clamping device based on a swelling principle of a cross-linked polymer.

Background

The micro-beam sensing detection technology is a novel sensing detection technology based on mechanical effect and developed on the basis of an atomic force microscope and a micro electro mechanical system. Due to the advantages of simple detection method, high sensitivity, no mark, real-time in-situ reproduction detection and the like, the micro-beam sensing technology has gradually become a hotspot of research in the micro-nano sensing field. The micro-beam sensing technology has been widely applied in the fields of quality detection, force detection, acceleration detection, air pressure detection, infrared imaging detection, detection of gas molecules, proteins, viruses, genes and the like.

However, since the micro-cantilever itself has a very small volume, is inconvenient to move and is easily damaged, a convenient and stable clamping device is required; the clamping device who exists at present adopts to put little cantilever beam under the rectangular plate through adopting screw and nut with the mode indirect fixed little cantilever beam of fixed rectangular plate, and the structure is complicated, complex operation, and probably damages little cantilever beam in operation process, therefore is necessary to design a stable clamping device, simple structure, convenient operation's little cantilever beam clamping device.

The flow cell used by An author in the document 'optimized measurement cell for cantilever arrangement in liquid interaction and automatic cantilever handling system' is extremely complex in structure, the clamping part is that the micro-cantilever is simply placed in the groove, the wedge block is pressed on the micro-cantilever and fixed through the screw, the operation of placing the micro-cantilever is difficult, the contact surface of the wedge block and the micro-cantilever is small, and the micro-cantilever is easily crushed.

Patent document CN209673626 discloses a reaction cell device based on a micro-cantilever sensor, which uses a micro-cantilever clamping device composed of a spring, an inserted metal loop bar and a clamping base body, and can stably clamp the micro-cantilever, but the fine structure in the device is exposed in a liquid environment and is very easy to corrode, so that the clamping stability of the device is affected, and the service life of the device is shortened.

Disclosure of Invention

In order to avoid the defects of the prior art, the invention provides a micro-cantilever beam clamping device based on the swelling principle of a cross-linked polymer; the clamping device realizes the clamping of the micro-cantilever beam by swelling the volume of the crosslinked polymer, has simple structure, convenient operation and good stability, is suitable for a liquid reaction tank, avoids the corrosion problem of metal, and simultaneously avoids the problem that the cantilever beam is crushed by overlarge extrusion force.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a micro-cantilever clamping device based on the swelling principle of crosslinked polymers, comprising:

and the swelling body is made of crosslinked polymer with swelling effect, is cylindrical, is positioned in the middle of the swelling groove, and is flush with the lower surface of the fixing groove.

The base station is made of a rectangular metal block and comprises a fixing groove, a swelling groove and a clamping rod; the fixed groove is located base station upper surface front end intermediate position, and the recess that swells is located the fixed groove below, and the supporting rod is parallel and level with base station anterior segment, and the width equals with fixed groove.

The swelling groove is cylindrical, the diameter of the swelling groove is larger than that of the swelling body, and the depth of the swelling groove is equal to the height of the non-swelled swelling body.

The width of the fixed groove is 2.5mm, the depth is equal to the thickness of the micro-cantilever beam, and the micro-cantilever beam is suitable for placing any micro-cantilever beam with the width less than or equal to 2.5 mm.

The micro-cantilever beam clamping device based on the swelling principle of the cross-linked polymer is characterized in that: the distance between the lower surface of the clamping rod and the upper surface of the swelling groove is smaller than the thickness of the micro-cantilever.

The micro-cantilever clamping device is used in such a way that firstly, a proper amount of liquid is injected into the swelling groove for pre-swelling, meanwhile, the micro-cantilever is placed in the fixing groove of the base station, after the swelling body swells and the micro-cantilever is not loosened, the device is placed in a liquid environment, the swelling body fully swells and swells, the micro-cantilever is clamped and fixed, and the micro-cantilever is stably fixed on the fixing groove.

The micro cantilever is easy to be damaged and has higher requirements on clamping, the micro cantilever is clamped in a mode of locking the base station and the swelling body, and compared with the prior art, the micro cantilever clamping device has the following beneficial effects:

1. through the mode of the swelling body, a screw, a nut and a spring are omitted, and the device is simple in structure.

2. Is suitable for liquid reaction tank and avoids the corrosion of metal.

3. The swelling effect of the swelling body can disperse redundant force by swelling towards the edge, so that the problem that the cantilever beam is crushed by overlarge extrusion force is avoided.

Drawings

FIG. 1 is a block diagram of the present invention

FIG. 2 is a schematic view of the clamping of the micro-cantilever according to the present invention

FIG. 3 is an enlarged view of the clamping principle of the micro-cantilever beam of the present invention

FIG. 4 is a schematic representation of the swelling of a swelling body when not swollen

FIG. 5 is a schematic view showing a state in which a swollen body is sufficiently swollen

Reference numbers in the figures: 1 fixed groove, 2 swelling grooves, 3 clamping rods, 4 base stations, 5 swelling bodies and 6 micro-cantilevers.

Detailed Description

The following detailed description of the present invention will be made in conjunction with fig. 1 and 2 for the understanding of the skilled person