CN220160014U

CN220160014U - Clamping combination mechanism and chemical analysis device

Info

Publication number: CN220160014U
Application number: CN202321192446.XU
Authority: CN
Inventors: 李延珍; 王英男; 张明; 吴开洪; 叶诚曦; 李长东
Original assignee: Ningde Bangpu Recycling Technology Co ltd; Hunan Brunp Recycling Technology Co Ltd; Guangdong Brunp Recycling Technology Co Ltd
Current assignee: Ningde Bangpu Recycling Technology Co ltd; Hunan Brunp Recycling Technology Co Ltd; Guangdong Brunp Recycling Technology Co Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-12-12
Anticipated expiration: 2033-05-17

Abstract

The utility model provides a clamping combination mechanism and a chemical analysis device. The clamping combination mechanism comprises a mechanism main body and an elastic loose clamp assembly, wherein the elastic loose clamp assembly comprises a fixing seat, an elastic part and a mounting seat, a storage cavity is formed in the fixing seat, an external thread is formed in the peripheral wall of the fixing seat, a mounting cavity is formed in the mounting seat, an internal thread is formed in the inner peripheral wall of the mounting cavity, the storage cavity is communicated with the mounting cavity, a part of the fixing seat is located in the mounting cavity, the external thread is in threaded connection with the internal thread so that the mounting seat is rotationally connected with the fixing seat, the elastic part sequentially penetrates through the mounting cavity and the storage cavity, the elastic part is respectively in butt joint with the mounting seat and the fixing seat, a connecting cavity for penetrating a pipette is formed in the elastic part, and the connecting cavity is communicated with the storage cavity; the fixing base is connected to one side of the cross rod, which is away from the vertical rod, and the accommodating cavity is communicated with the first passage. The clamping combination mechanism has good convenience for using the pipettes with different specifications.

Description

Clamping combination mechanism and chemical analysis device

Technical Field

The utility model relates to the technical field of chemical analysis devices, in particular to a clamping combination mechanism and a chemical analysis device.

Background

A chemical analysis apparatus is an industrial apparatus that performs analysis based on chemical reactions of substances. The chemical analysis device is widely applied to the fields of batteries, aerospace, steel, petrifaction, electric power, pharmacy and the like. The chemical analysis device consists of a clamping combination mechanism, a reaction container and the like. When carrying out chemical experiments, operating personnel need to select the pipette of suitable specification according to the volume and the requirement of solution that move to carry out the pipettes, and clamping combined mechanism is used for pressing from both sides tight pipette, and the liquid rubber mouth that drips of pipette is located the reaction vessel top.

In prior art, clamping assembly mechanism includes base, pole setting, horizontal pole and clamping assembly, and the pole setting is connected perpendicularly with the base, and the horizontal pole is connected perpendicularly in the pole setting one side that deviates from the base, and clamping assembly is connected with the horizontal pole, and clamping assembly and horizontal pole all are located the top of base. For example, a traditional clamping combination mechanism is provided with a fixed frame like the liquid absorption experiment table for chemical analysis in the chinese patent with the patent number CN202220800261.1, the fixed slots are all formed in the upper end and the lower end of the fixed frame, so that the upper portion and the lower portion of a pipette are fixed by the fixed slots on the fixed frame, and the middle expanding portion of the pipette is fixed in the fixed frame, so that the pipette is fixed by the fixed frame, thereby avoiding the problem that an operator needs to vertically hold the pipette all the time, and further enabling the working strength of the operator to be lower when using the pipette.

However, because the fixed slot size that the fixed frame upper and lower ends were seted up correspondingly is fixed for the fixed frame only can have a pipette of expanding portion to centre gripping, and can not carry out stable centre gripping to the pipette of different specification straight glass tube structures, thereby make the suitability between fixed frame and the pipette of different specifications relatively poor, and then make the liquid absorption laboratory bench for chemical analysis relatively poor to the convenient to use of pipette of different specifications, even make the convenient to use of clamping combination mechanism to pipette of different specifications relatively poor.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a clamping combination mechanism and a chemical analysis device which have good convenience in use for pipettes of different specifications.

The aim of the utility model is realized by the following technical scheme:

a clamping assembly comprising:

the mechanism main body comprises a vertical rod, a base and a cross rod, wherein the vertical rod is connected with the base, the vertical rod is movably connected with the cross rod, the cross rod is positioned at one side of the vertical rod, which is away from the base, and a first passageway is formed in the cross rod; and

the elastic loose clamp assembly comprises a fixed seat, an elastic part and a mounting seat, wherein a storage cavity is formed in the fixed seat, external threads are formed in the peripheral wall of the fixed seat, a mounting cavity is formed in the mounting seat, internal threads are formed in the inner peripheral wall of the mounting cavity, the storage cavity is communicated with the mounting cavity, a part of the fixed seat is positioned in the mounting cavity, the external threads are in threaded connection with the internal threads so as to enable the mounting seat to be rotationally connected with the fixed seat, the elastic part sequentially penetrates through the mounting cavity and the storage cavity, the elastic part is respectively in butt joint with the mounting seat and the fixed seat, and a connecting cavity for penetrating a pipette is formed in the elastic part and is communicated with the storage cavity; the fixing seat is connected to one side of the cross rod, which is away from the vertical rod, and the accommodating cavity is communicated with the first passageway.

In one embodiment, the mechanism main body further comprises an elastic element, the elastic element is sleeved on the upright rod, and the elastic element is respectively connected with the base and the cross rod.

In one embodiment, a limiting part is arranged on one side of the upright rod, which faces away from the base, and the limiting part is positioned above the cross rod.

In one embodiment, the cross bar is further provided with a second passageway, and the upright rod is arranged in the second passageway in a penetrating manner and sleeved with the cross bar.

In one embodiment, the clamping assembly mechanism further comprises a guide sleeve, wherein a guide cavity is formed in the guide sleeve, the guide cavity is communicated with the storage cavity, and the guide sleeve penetrates through the first passageway and is connected with the cross rod.

In one embodiment, the elastic part is further formed with a receiving groove, and the receiving groove communicates with the connection chamber.

In one embodiment, the resilient clip assembly further comprises a resilient rubber ring positioned within the receiving slot and connected to the resilient portion, the resilient rubber ring being configured to secure the pipette.

In one embodiment, the elastic part comprises a first round table, a connecting block and a second round table which are sequentially connected, the first round table is located in the installation cavity and is in butt joint with the installation seat, the second round table is located in the storage cavity and is in butt joint with the fixing seat, the first round table is formed with a first cavity, the connecting block is formed with a second cavity, the second round table is formed with a third cavity, the first cavity, the second cavity and the third cavity are sequentially communicated to form the connection cavity, the third cavity is communicated with the storage cavity, the cross section of the installation cavity and the cross section of the first round table are in a conical shape with the upper part narrow and the lower part wide, and the cross section of the storage cavity and the cross section of the second round table are in a conical shape with the upper part wide and the lower part narrow.

In one embodiment, the upright is welded to the base.

A chemical analysis apparatus comprising the clamping assembly according to any of the above embodiments.

Compared with the prior art, the utility model has at least the following advantages:

because the elastic part is formed with a connecting cavity for penetrating the pipette, the pipette is pre-fixed on the elastic part, the mounting seat is rotationally connected with the fixing seat, the elastic part sequentially penetrates through the mounting cavity and the accommodating cavity, the elastic part is respectively abutted with the mounting seat and the fixing seat, the mounting seat is positioned above the fixing seat, when an operator rotates the mounting seat downwards, the mounting seat downwards moves to drive the elastic part to downwards move in the accommodating cavity, the elastic part is subjected to the limiting extrusion action of the fixing seat in the downwards moving process, so that the elastic part elastically deforms and inwards contracts, the inner wall of the connecting cavity is abutted against the pipette, and when the mounting seat can not downwards move any more, at the moment, the elastic part elastically deforms and contracts to the limit in the accommodating cavity, so that the inner wall of the connecting cavity is tightly attached to the outer surface of the pipette, the elastic part clamps the outer surface of the pipette, the elastic part is enabled to fix the position of the pipette, and the elastic part is enabled to stably clamp the pipette, and the elastic loose clamp assembly is enabled to be used for clamping the pipette; therefore, the clamping size of the connecting cavity is changed along with the elastic deformation of the elastic part, namely the clamping size of the connecting cavity is not fixed, and the pipette with the straight glass tube structure of different specifications can be stably clamped under the combined action of the mounting seat, the elastic part and the fixing seat, so that the adaptability between the elastic loose clamp assembly and the pipettes with different specifications is better, and the convenience in use of the clamping combination mechanism on the pipettes with different specifications is better; the same way, further, the elastic part can also be used for clamping the pipette to be far away from the upper part or the lower part of the expanding part, so that the elastic part can be used for clamping the pipette and also can be used for clamping the pipette, thereby improving the suitability between the elastic loose clamp assembly and the liquid taking pipes of different types, and further enhancing the use convenience between the clamping combination mechanism and the liquid taking pipes of different types.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a clamping assembly according to an embodiment;

FIG. 2 is a cross-sectional view from another perspective of a clamping assembly mechanism according to one embodiment;

fig. 3 is an enlarged schematic view of the clamping assembly shown in fig. 2 at a.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, the clamping assembly mechanism 10 of an embodiment includes a mechanism main body 100 and an elastic loose clamp assembly 200, wherein the mechanism main body 100 includes a vertical rod 110, a base 120 and a cross rod 130, the vertical rod 110 is connected with the base 120, the vertical rod 110 is movably connected with the cross rod 130, the cross rod 130 is located at one side of the vertical rod 110 away from the base 120, and the cross rod 130 is formed with a first aisle 131; the elastic loose clamp assembly 200 comprises a fixed seat 210, an elastic part 220 and a mounting seat 230, wherein a containing cavity 211 is formed in the fixed seat 210, an external thread 212 is arranged on the peripheral wall of the fixed seat 210, a mounting cavity 231 is formed in the mounting seat 230, an internal thread 232 is arranged on the inner peripheral wall of the mounting cavity 231, the containing cavity 211 is communicated with the mounting cavity 231, a part of the fixed seat 210 is positioned in the mounting cavity 231, the external thread 212 is in threaded connection with the internal thread 232 so as to enable the mounting seat 230 to be rotationally connected with the fixed seat 210, the elastic part 220 sequentially penetrates through the mounting cavity 231 and the containing cavity 211, the elastic part 220 is respectively abutted to the mounting seat 230 and the fixed seat 210, a connecting cavity 221 for penetrating a pipette is formed in the elastic part 220, and the connecting cavity 221 is communicated with the containing cavity 211; the fixing base 210 is connected to a side of the cross bar 130 facing away from the upright 110, and the accommodating cavity 211 is communicated with the first passageway 131.

In this embodiment, the elastic portion 220 is formed with a connection cavity 221 for threading the pipette, the connection cavity 221 is communicated with the accommodating cavity 211, and the accommodating cavity 211 is communicated with the first passageway 131, so that the pipette sequentially threads through the connection cavity 221, the accommodating cavity 211 and the first passageway 131, and the pipette sequentially threads through the elastic portion 220, the fixing seat 210 and the cross bar 130, so that a liquid dropping glue port of the pipette is located below the cross bar 130, and liquid in the pipette conveniently enters the reaction container. Part of the fixing base 210 is located in the installation cavity 231, the accommodating cavity 211 is communicated with the installation cavity 231, the fixing base 210 is connected to the cross rod 130, the accommodating cavity 211 is communicated with the first passageway 131, namely, the installation base 230 is located above the fixing base 210, and the cross rod 130 is located below the fixing base 210.

In the clamping and combining mechanism 10, since the elastic portion 220 is formed with the connecting cavity 221 for threading the pipette, the pipette is pre-fixed to the elastic portion 220, the mounting seat 230 is rotationally connected with the fixing seat 210, the elastic portion 220 sequentially threads through the mounting cavity 231 and the accommodating cavity 211, the elastic portion 220 is respectively abutted with the mounting seat 230 and the fixing seat 210, the mounting seat 230 is positioned above the fixing seat 210, when an operator rotates the mounting seat 230 downwards, the mounting seat 230 moves downwards to drive the elastic portion 220 to move downwards in the accommodating cavity 211, the elastic portion 220 is subjected to the limiting extrusion action of the fixing seat 210 in the downward movement process, so that the elastic portion 220 is elastically deformed and contracted inwards, the inner wall of the connecting cavity 221 abuts against the pipette, and when the mounting seat 230 can not move downwards any more, the elastic portion 220 is elastically deformed and contracted to the limit in the accommodating cavity 211, so that the inner wall of the connecting cavity 221 is tightly attached to the outer surface of the pipette, the elastic portion 220 is clamped on the outer surface of the pipette, the elastic portion 220 is fixed in the position of the pipette, and the elastic portion 220 is clamped on the pipette, and the assembly 200 is clamped stably; therefore, the clamping size of the connecting cavity 221 changes along with the elastic deformation of the elastic portion 220, that is, the clamping size of the connecting cavity 221 is not fixed, and the pipette with different specifications of straight glass tube structures can be stably clamped under the combined action of the mounting seat 230, the elastic portion 220 and the fixing seat 210, so that the adaptability between the elastic loose clamp assembly 200 and the pipettes with different specifications is better, and the convenience in using the clamping combination mechanism 10 for the pipettes with different specifications is better; likewise, further, the elastic portion 220 may also be used to clamp the pipette away from the top or bottom of the enlarged portion, so that the elastic portion 220 may be used to clamp the pipette as well as the pipette, thereby improving the adaptability between the elastic loose clamp assembly 200 and different types of liquid-taking tubes, and further enhancing the convenience in use between the clamping assembly 10 and different types of liquid-taking tubes.

As shown in fig. 1 to 2, in one embodiment, the mechanism main body 100 further includes an elastic element 140, the elastic element 140 is sleeved on the upright 110, and the elastic element 140 is connected to the base 120 and the cross bar 130 respectively. In this embodiment, the elastic element 140 is a coil spring or an elastic rubber sleeve, and the elastic element 140 plays a role of supporting the cross rod 130, so that the cross rod 130 is prevented from sliding down rapidly under the action of gravity, so that the elastic element 140 has a good buffering effect, and the pipette fixed on the cross rod 130 keeps a certain height in the vertical direction, so that the pipette is hard to collide with the base 120 or the laboratory bench or the reaction vessel, and further the protection performance of the clamping combination mechanism 10 on the pipette is good.

As shown in fig. 1 to 2, in one embodiment, a limiting portion 111 is disposed on a side of the upright 110 facing away from the base 120, and the limiting portion 111 is located above the cross bar 130. In this embodiment, the limiting portion 111 is a limiting bolt, and a limiting thread (not shown) is formed on one side of the upright rod 110 away from the base 120, so that the limiting portion 111 is in threaded connection with the upright rod 110, so that the limiting portion 111 rotates relative to the upright rod 110, the limiting portion 111 plays a limiting role, the cross rod 130 is prevented from being separated from one end of the upright rod 110, and the connection constraint between the cross rod 130 and the upright rod 110 is good.

As shown in fig. 1 to 2, in one embodiment, the cross bar 130 is further formed with a second passageway 132, and the upright bar 110 is inserted through the second passageway 132 and sleeved with the cross bar 130, so that the cross bar 130 is slidably connected with the upright bar 110, and thus the cross bar 130 is convenient to detach from the upright bar 110, so that the connection between the upright bar 110 and the cross bar 130 is convenient, and the cross bar 130 and the elastic element 140 are convenient to replace after being damaged, thereby improving the convenience of use of the clamping assembly mechanism 10.

As shown in fig. 1 to 3, in one embodiment, the clamping assembly 10 further includes a guide sleeve 300, where the guide sleeve 300 is formed with a guide cavity 310, the guide cavity 310 is in communication with the receiving cavity 211, and the guide sleeve 300 is disposed through the first passageway 131 and connected to the cross bar 130. In this embodiment, the guiding sleeve 300 plays a role in limiting, and the guiding sleeve 300 is of a silica gel structure, so that the problem that the pipette is damaged due to collision between the pipette and the cross rod 130 caused by the fact that the bottom end of the pipette is inserted into the inner side of the cross rod 130 when the pipette is installed is avoided, and the clamping and combining mechanism 10 has good protection performance on the pipette.

As shown in fig. 2 to 3, in one embodiment, the elastic part 220 is further formed with a receiving groove 2222, the receiving groove 2222 communicating with the connection chamber 221; the spring clip assembly 200 further includes a spring rubber ring 240, the spring rubber ring 240 is disposed in the receiving groove 2222 and connected to the spring portion 220, and the spring rubber ring 240 is used to secure the pipette. In this embodiment, the elastic rubber ring 240 is a fluororubber sealing O-ring structure, the elastic rubber ring 240 has excellent rebound resilience, the accommodating groove 2222 is adapted to the elastic rubber ring 240, so that the elastic rubber ring 240 is abutted to the elastic portion 220, the pipette is used for penetrating the elastic rubber ring 240, the elastic rubber ring 240 can effectively promote the friction force born by the outer surface of the pipette, and therefore the clamping stability of the elastic loose clamp assembly 200 to the pipette is improved.

As shown in fig. 2 to 3, in one embodiment, the elastic portion 220 includes a first round table 222, a connection block 223 and a second round table 224 sequentially connected, the first round table 222 is located in the installation cavity 231 and is abutted with the installation seat 230, the second round table 224 is located in the storage cavity 211 and is abutted with the fixing seat 210, the first round table 222 is formed with a first cavity 2221, the connection block 223 is formed with a second cavity 2231, the second round table 224 is formed with a third cavity 2241, the first cavity 2221, the second cavity 2231 and the third cavity 2241 are sequentially communicated to form a connection cavity 221, the third cavity 2241 is communicated with the storage cavity 211, the cross section of the installation cavity 231 and the cross section of the first round table 222 are both in a tapered shape with the upper part being narrow and the lower part being narrow, and the cross section of the storage cavity 211 and the cross section of the second round table 224 are both in a tapered shape with the upper part being wide and the lower part being narrow. In this embodiment, the accommodating groove 2222 is formed in the first round table 222, the first round table 222 is matched with the mounting seat 230, the second round table 224 is matched with the fixing seat 210, that is, the elastic portion 220 is respectively matched with the mounting seat 230 and the fixing seat 210, the mounting seat 230 is matched and connected above the elastic portion 220, the fixing seat 210 is matched and connected below the elastic portion 220, the elastic portion 220 is elastically deformed under the extrusion action of the mounting seat 230, so that the elastic portion 220 contracts inwards to clamp the pipette, and the elastic loose clamp assembly 200 can clamp the pipettes of different specifications stably, so that the pipette is used, and the convenience of using the pipette with different specifications by the clamping combination mechanism 10 is better.

In one embodiment, as shown in fig. 1, the upright 110 is welded to the base 120, so that the connection strength between the upright 110 and the base 120 is high, and the connection stability between the upright 110 and the base 120 is high.

The utility model also provides a chemical analysis device comprising the clamping assembly 10 according to any of the embodiments.

because the elastic part 220 is formed with the connecting cavity 221 for penetrating the pipette, the pipette is pre-fixed on the elastic part 220, the mounting seat 230 is rotationally connected with the fixing seat 210, the elastic part 220 penetrates through the mounting cavity 231 and the accommodating cavity 211 in sequence, the elastic part 220 is respectively abutted with the mounting seat 230 and the fixing seat 210, the mounting seat 230 is positioned above the fixing seat 210, when an operator rotates the mounting seat 230 downwards, the mounting seat 230 moves downwards to drive the elastic part 220 to move downwards in the accommodating cavity 211, the elastic part 220 is subjected to the limiting extrusion action of the fixing seat 210 in the downward movement process, so that the elastic part 220 is elastically deformed inwards to shrink, the inner wall of the connecting cavity 221 abuts against the pipette, when the mounting seat 230 can not move downwards any more, at the moment, the elastic part 220 is elastically deformed and shrunk to the limit, the inner wall of the connecting cavity 221 is tightly attached to the outer surface of the pipette, so that the elastic part 220 clamps the outer surface of the pipette, the position of the pipette is fixed by the elastic part 220, and the pipette is stably clamped by the elastic part 220, and the pipette 200 is clamped by the elastic part 200; therefore, the clamping size of the connecting cavity 221 changes along with the elastic deformation of the elastic portion 220, that is, the clamping size of the connecting cavity 221 is not fixed, and the pipette with different specifications of straight glass tube structures can be stably clamped under the combined action of the mounting seat 230, the elastic portion 220 and the fixing seat 210, so that the adaptability between the elastic loose clamp assembly 200 and the pipettes with different specifications is better, and the convenience in using the clamping combination mechanism 10 for the pipettes with different specifications is better; likewise, further, the elastic portion 220 may also be used to clamp the pipette away from the top or bottom of the enlarged portion, so that the elastic portion 220 may be used to clamp the pipette as well as the pipette, thereby improving the adaptability between the elastic loose clamp assembly 200 and different types of liquid-taking tubes, and further enhancing the convenience in use between the clamping assembly 10 and different types of liquid-taking tubes.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A clamping assembly, comprising:

the mechanism comprises a mechanism main body (100) and comprises a vertical rod (110), a base (120) and a cross rod (130), wherein the vertical rod (110) is connected with the base (120), the vertical rod (110) is movably connected with the cross rod (130), the cross rod (130) is positioned at one side, deviating from the base (120), of the vertical rod (110), and a first passageway (131) is formed in the cross rod (130); and

the elastic loose clamp assembly (200) comprises a fixed seat (210), an elastic part (220) and a mounting seat (230), wherein a containing cavity (211) is formed in the fixed seat (210), an external thread (212) is arranged on the peripheral wall of the fixed seat (210), a mounting cavity (231) is formed in the mounting seat (230), an internal thread (232) is arranged on the inner peripheral wall of the mounting cavity (231), the containing cavity (211) is communicated with the mounting cavity (231), a part of the fixed seat (210) is positioned in the mounting cavity (231), the external thread (212) is in threaded connection with the internal thread (232) so that the mounting seat (230) is in rotary connection with the fixed seat (210), the elastic part (220) sequentially penetrates through the mounting cavity (231) and the containing cavity (211), the elastic part (220) is respectively abutted with the mounting seat (230) and the fixed seat (210), a connecting cavity (221) for penetrating a pipette is formed in the elastic part (220), and the connecting cavity (221) is communicated with the containing cavity (211). The fixing seat (210) is connected to one side, deviating from the upright (110), of the cross rod (130), and the accommodating cavity (211) is communicated with the first passage (131).

2. The clamping assembly mechanism according to claim 1, wherein the mechanism body (100) further comprises an elastic element (140), the elastic element (140) is sleeved on the upright (110), and the elastic element (140) is respectively connected with the base (120) and the cross bar (130).

3. Clamping assembly according to claim 2, characterized in that the side of the upright (110) facing away from the base (120) is provided with a limit part (111), the limit part (111) being located above the cross bar (130).

4. A clamping assembly according to claim 3, wherein the cross bar (130) is further formed with a second passageway (132), and the upright (110) is threaded through the second passageway (132) and is sleeved with the cross bar (130).

5. The clamping assembly of claim 1, wherein the clamping assembly (10) further comprises a guide sleeve (300), the guide sleeve (300) being formed with a guide cavity (310), the guide cavity (310) being in communication with the receiving cavity (211), the guide sleeve (300) being threaded through the first passageway (131) and connected to the cross bar (130).

6. The clamping assembly of claim 1, wherein the resilient portion (220) is further formed with a receiving slot (2222), the receiving slot (2222) being in communication with the connecting chamber (221).

7. The clamp assembly of claim 6, wherein the resilient clip assembly (200) further comprises a resilient rubber ring (240), the resilient rubber ring (240) being located within the receiving slot (2222) and connected to the resilient portion (220), the resilient rubber ring (240) being configured to secure the pipette.

8. The clamping assembly mechanism according to claim 1, wherein the elastic portion (220) comprises a first round table (222), a connecting block (223) and a second round table (224) which are sequentially connected, the first round table (222) is located in the installation cavity (231) and is abutted with the installation seat (230), the second round table (224) is located in the storage cavity (211) and is abutted with the fixing seat (210), the first round table (222) is formed with a first cavity (2221), the connecting block (223) is formed with a second cavity (2231), the second round table (224) is formed with a third cavity (2241), the first cavity (2221), the second cavity (2231) and the third cavity (2241) are sequentially communicated to form the connecting cavity (221), the third cavity (2241) is communicated with the storage cavity (211), the cross section of the installation cavity (231) and the cross section of the first round table (222) are both wide and the cross section of the second round table (224) is in a conical shape with the cross section of the first round table (222) being narrow.

9. The clamping assembly of claim 1, wherein the upright (110) is welded to the base (120).

10. Chemical analysis device, characterized in that it comprises a clamping assembly (10) according to any one of claims 1 to 9.