CN211303130U

CN211303130U - Test tube clamping device

Info

Publication number: CN211303130U
Application number: CN201921586074.2U
Authority: CN
Inventors: 尚美洁; 张洁明; 喻敏; 刘陈瑶
Original assignee: Electric Power Research Institute of Guangxi Power Grid Co Ltd
Current assignee: Electric Power Research Institute of Guangxi Power Grid Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-08-21
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a test tube clamping device, including the frame, install a plurality of centre gripping section of thick bamboos that are used for placing the test tube on the frame, the part lateral wall of a centre gripping section of thick bamboo is the flexible expansible physique, forms a cavity between a centre gripping section of thick bamboo and the frame, and the expansible physique pressurized is in order to clip the test tube of placing in a centre gripping section of thick bamboo toward the inside bulging of a centre gripping section of thick bamboo when pouring into the medium into the cavity. The utility model discloses a set up flexible expansible physique, expansible physique pressurized when pouring into the medium toward the cavity is in order to carry the test tube of placing in a centre gripping section of thick bamboo toward the inside bulging of a centre gripping section of thick bamboo, thereby realize the centre gripping of test tube, the utility model discloses a centre gripping is a flexible centre gripping, can realize the parcel to the test tube to realize firm centre gripping and can not damage the test tube, and as a flexible centre gripping, it can be applicable to the test tube of different pipe diameters simultaneously, and the suitability is strong, and application scope is wide.

Description

Test tube clamping device

Technical Field

The utility model relates to a material detects technical field, especially relates to a test tube clamping device.

Background

The vibration treatment is often needed when detecting biological and chemical substances, and at the moment, if the vibration device is used for processing, the clamping device is needed to clamp the test tube so as to avoid the test tube from being separated from the vibration device when the vibration treatment is carried out.

The existing test tube holding device basically comprises a test tube rack and at least one shifting part for holding a test tube placed on the test tube rack, wherein the shifting part is usually driven by a motor or an air cylinder. Although the common structure can realize basic clamping action, certain defects exist, firstly, the clamping force is not well controlled, and because the clamping force is controlled by a motor or an air cylinder, unstable clamping or damage to the test tube can be caused by improper control of the clamping force; secondly, be difficult to be applicable to the test tube of different pipe diameters simultaneously, because the pipe diameter of test tube is different, consequently often only can grasp the test tube that the pipe diameter is big.

SUMMERY OF THE UTILITY MODEL

Not enough more than, the utility model provides a test tube clamping device, this test tube clamping device pass through flexible centre gripping mode, can realize firm centre gripping and can not damage the test tube, can be applicable to the test tube of different pipe diameters simultaneously again.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a test tube clamping device, including the frame, install a plurality of centre gripping section of thick bamboos that are used for placing the test tube on the frame, the partial lateral wall of a centre gripping section of thick bamboo is flexible inflatable body, form a cavity between a centre gripping section of thick bamboo and the frame, when toward when pouring into the medium in the cavity inflatable body pressurized toward the inside bulging of a centre gripping section of thick bamboo is in order to carry the test tube of placing in a centre gripping section of thick bamboo.

Furthermore, a pipeline communicated with the cavity is arranged on the frame, and an opening and closing component for controlling the opening or closing of the pipeline is arranged on the pipeline.

Further, the opening and closing component is a valve or an air faucet or a plug.

Further, the medium injected into the cavity is gas or liquid.

Furthermore, the frame is of an internal hollow structure, and the top of the frame is provided with a plurality of through holes; the clamping cylinder is hollow inside and has an open upper end, and the expandable body is positioned in the middle of the clamping cylinder; each through hole is provided with one clamping cylinder, and the upper part of each clamping cylinder is connected with the through hole.

Further, a configuration cylinder is placed in part or all of the clamping cylinders.

Further, the bottom of the clamping cylinder is connected with the frame.

Furthermore, the frame comprises a bottom frame, the bottom frame is of an internal hollow structure, and the top surface of the bottom frame is provided with a plurality of fixing holes; the clamping cylinder comprises an inner cylinder body and an outer cylinder body, the inner cylinder body is hollow inside and has an open upper end, and the expandable body is positioned in the middle of the inner cylinder body; the outer barrel is sleeved on the periphery of the inner barrel, a gap is formed between the outer barrel and the inner barrel, the upper portion of the outer barrel is connected with the upper portion of the inner barrel so that the upper portion of the gap is of a sealing structure, the lower portion of the outer barrel is connected with the fixing hole, and the gap between the inner barrel and the outer barrel and the hollow interior of the bottom frame form the cavity.

Further, the frame is still including being located the roof of chassis top, the roof pass through the montant with chassis fixed connection, the roof is in corresponding to the fixed orifices position department of chassis has seted up and has placed the hole, the upper portion of outer barrel with place the hole and be connected.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a test tube clamping device, through setting up the flexible expansible physique, the expansible physique pressurized when pouring into the medium toward the cavity is in order to carry the test tube of placing in a centre gripping section of thick bamboo toward the inside bulging of a centre gripping section of thick bamboo, thereby realizes the centre gripping of test tube, the utility model discloses a centre gripping is a flexible centre gripping, can realize the parcel to the test tube to realize firm centre gripping and can not damage the test tube, and as a flexible centre gripping, it can be applicable to the test tube of different pipe diameters simultaneously, and the suitability is strong, and application scope is wide.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a cross-sectional view (isometric view) of FIG. 1;

FIG. 3 is a cross-sectional view (isometric view) of the cartridge of FIG. 1;

FIG. 4 is a schematic structural diagram of an embodiment;

FIG. 5 is a cross-sectional view (isometric view) of FIG. 4;

fig. 6 is a cross-sectional view (isometric view) of the clamping cylinder of fig. 4.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, the preferred embodiment provides a test tube holding device, which mainly includes a frame 1 and a holding cylinder 2.

Referring to fig. 1 to 3, the frame 1 is a square structure, the frame 1 is a hollow structure, and a plurality of through holes are formed at the top of the frame 1. A plurality of clamping cylinder 2 are installed on frame 1, and clamping cylinder 2 wholly is cylindric structure, and clamping cylinder 2 is inside cavity, upper end open structure. Part of the side wall of the clamping cylinder 2 is a flexible, expandable body 21, which in the preferred embodiment is located in the middle of the clamping cylinder 2. The inflatable body 21 is preferably made of latex, and the inflatable body 21 is a cylindrical thin-wall structure with two open ends, and the upper end and the lower end of the inflatable body are respectively fixedly connected with the clamping cylinder 2 and have good air tightness. A through-hole at the top of frame 1 disposes a clamping cylinder 2, and the upper portion and the through-hole fixed connection of clamping cylinder 2 have good gas tightness, and at this moment, form a cavity 3 between clamping cylinder 2 and the frame 1, when pouring into the medium into cavity 3 the bloated shape body 21 pressurized towards clamping cylinder 2 inside bulging in order to carry the test tube of placing in clamping cylinder 2.

During the implementation, accessible air pump, inflator or devices such as water pump are gone into medium into cavity 3, the utility model discloses in, the medium of pouring into cavity 3 is gas or liquid, and generally preferred gas injection, like the air, the preferred air of pouring into of this preferred embodiment to realize the gas injection through the air pump. When constantly pouring into the medium (like the air of this preferred embodiment) into cavity 3, the pressure in cavity 3 risees gradually, but the bulging body 21 pressurized this moment toward the inside bulging of a centre gripping section of thick bamboo 2, when the test tube was placed in a centre gripping section of thick bamboo 2, the bulging body 21 of constantly toward the inside bulging of a centre gripping section of thick bamboo 2 can wrap up the test tube gradually and realize the centre gripping to the test tube, also accomplish the centre gripping of test tube promptly. This kind of centre gripping mode is a flexible centre gripping, and the dynamics (clamping-force) of centre gripping mainly receives the volume of the medium of pouring into to control, but for the centre gripping of rigidity, the utility model provides a centre gripping is a flexible centre gripping relatively, consequently, and it is when pouring into a certain amount of medium in order to realize the firm centre gripping of certain clamping-force, for the centre gripping of rigidity, is flexible centre gripping on the one hand and holds on the other hand centre gripping contact surface great relatively, and it is difficult to damage the test tube. Because the mode through bulging realizes flexible centre gripping, and has the characteristics of not fragile test tube, consequently, can place the test tube of different pipe diameters in different centre gripping section of thick bamboo 2 simultaneously. Because inject into gas or liquid, consequently according to the theory of pressure, the pressure to the test tube of various pipe diameters is unanimous basically when the bloated shape body 21 bulging in each centre gripping section of thick bamboo 2, consequently makes the utility model discloses can perfectly be applicable to the test tube of different pipe diameters simultaneously.

With reference to fig. 1, a pipeline 4 is disposed on one side of the frame 1 and is connected to the cavity 3, an opening/closing component 5 is disposed on the pipeline 4 and controls the pipeline 4 to open or close, in the preferred embodiment, the opening/closing component 5 is a valve, and the opening/closing of the pipeline 4 can be controlled by screwing the valve. The end of the pipeline 4 is connected with an air pump. The opening of the pipeline 4 in the utility model means that the cavity 3 is communicated with the outside through the pipeline 4 so as to facilitate the medium to enter the cavity 3 or come out of the cavity 3; the closing of the line 4 means that the cavity 3 is isolated from the outside by blocking the line 4 to avoid the medium from entering the cavity 3 or coming out of the cavity 3. In the preferred embodiment, the valve is arranged, so that the pipeline 4 is opened when the valve is opened, the medium can be injected into the cavity 3 or can come out of the cavity 3, and the pipeline 4 is closed when the valve is closed, so that the medium can be prevented from entering the cavity 3 or coming out of the cavity 3. During implementation, when a medium needs to be injected into the cavity 3, the pipeline 4 is opened through the opening and closing part 5 so that the medium can be injected into the cavity 3 conveniently to clamp the test tube, when ideal clamping force is achieved to achieve stable clamping of the test tube, the pipeline 4 is closed to maintain clamping, and continuous clamping can be achieved even if an external medium injection device is removed; when not needing the centre gripping back, open pipeline 4 and let the medium in the cavity 3 come out, can remove the centre gripping to the test tube to in taking off the test tube. In other preferred embodiments, the opening and closing member 5 may be an air nozzle or a plug.

In order to stabilize and prevent the clamping cylinder 2 from shaking during the oscillation operation, the bottom of the clamping cylinder 2 is fixedly connected with the frame 1.

In practice, sometimes all the holding cylinders 2 are not used up, that is, the number of test tubes placed is smaller than the number of holding cylinders 2, and some holding cylinders 2 are not used temporarily. If some holding cylinders 2 are not used temporarily, on one hand, more medium needs to be injected when injecting the medium, and on the other hand, the inflatable body 21 of the holding cylinder 2 where no test tube is placed may be too expanded, and multiple times of too large expansion may accelerate the aging of the inflatable body 21, reducing the service life. Therefore, referring to fig. 1 and fig. 2, in the preferred embodiment, when the dispensing tube 6 is placed in a part of the holding tube 2, when there is no holding tube 2 for placing a test tube, a dispensing tube 6 is placed in the holding tube 2, and the dispensing tube 6 has a cylindrical structure, which is equivalent to a test tube, so that the problems that more media need to be injected when no test tube is placed, and that multiple times of over-bulging accelerate the aging of the expandable body 21 and reduce the service life can be solved.

Example 2

Referring to fig. 4 to 6, different from embodiment 1, in the preferred embodiment, the frame 1 includes a bottom frame 11, the bottom frame 11 is a square structure, the bottom frame 11 is hollow, the pipeline 4 is disposed on a side surface of the bottom frame 11, and a plurality of fixing holes are disposed on a top surface of the bottom frame 11. The clamping cylinder 2 comprises an inner cylinder body 22 and an outer cylinder body 23, the inner cylinder body 22 is of an internal hollow structure, the upper end of the inner cylinder body is open, the expandable body 21 is located in the middle of the inner cylinder body 22, the outer cylinder body 23 is sleeved on the periphery of the inner cylinder body 22, a gap is formed between the outer cylinder body 23 and the inner cylinder body 22, the upper portion of the outer cylinder body 23 is connected with the upper portion of the inner cylinder body 22, so that the upper portion of the gap is of a sealing structure, the lower portion of the outer cylinder body 23 is connected with a fixing hole and has good air tightness, and the gap between the inner cylinder body 22 and the outer cylinder body 23 and.

During the implementation, inject the medium into cavity 3, the medium gets into the clearance and makes the bloated shape 21 pressurized toward the inside bulging of a centre gripping section of thick bamboo 2 to realize the centre gripping of test tube.

In order to stabilize and prevent the lower part of the inner cylinder 22 from shaking, the outer side of the lower part of the inner cylinder 22 is connected with the inner wall of the lower part of the outer cylinder 23 through a strut 24, so that the inner cylinder 22 is fixed on the outer cylinder 23.

In order to avoid that the upper part of the clamping cylinder 2 extends too long and is likely to cause large stress during oscillation, and excessive acting force is caused at the joint of the clamping cylinder 2 and the bottom frame 11, please refer to fig. 4 and 5, the frame 1 further comprises a square top plate 12 positioned above the bottom frame 11, four corners of the top plate 12 are fixedly connected with the bottom frame 11 through vertical rods 13, a placing hole 14 is formed in the position of the top plate 12 corresponding to the fixing hole of the bottom frame 11, the upper part of the outer cylinder 23 is connected with the placing hole 14, and the connection mode is threaded connection or plugging connection.

The clamping cylinder 2 is detachably mounted on the frame 1 in a threaded connection mode, an inserting connection mode or the like, and due to the fact that the situation that all the clamping cylinders 2 are not completely utilized can occur, part of the clamping cylinders 2 are replaced by the sealing covers 7 matched with the fixing holes, and the sealing covers 7 replacing the clamping cylinders 2 are mounted in the fixing holes in a matched mode. That is, a plurality of sealing covers 7 are provided, when there are many test tubes, how many holding cylinders 2 are installed and the test tubes are placed in the holding cylinders 2 to be held, and without fixing holes of the bottom frame 11 of the holding cylinders 2, the sealing covers 7 are correspondingly installed, and the airtightness of the cavity 3 can be maintained through the sealing covers 7. By the mode, the problems that more media need to be injected when a test tube is not placed, and the aging of the expandable body 21 is accelerated due to multiple times of overlarge bulging and the service life is shortened can be well solved.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a test tube clamping device, is including frame (1), its characterized in that: install a plurality of clamping cylinder (2) that are used for placing the test tube on frame (1), the partial lateral wall of a clamping cylinder (2) is flexible inflatable body (21), form a cavity (3) between a clamping cylinder (2) and frame (1), when toward when annotating the medium in cavity (3) inflatable body (21) pressurized toward clamping cylinder (2) inside bulging is in order to clip place the test tube in clamping cylinder (2).

2. Test tube holding device according to claim 1, characterized in that: the frame (1) is provided with a pipeline (4) communicated with the cavity (3), and the pipeline (4) is provided with an opening and closing component (5) for controlling the opening or closing of the pipeline (4).

3. Test tube holding device according to claim 2, characterized in that: the opening and closing component (5) is a valve or an air tap or a plug.

4. Test tube holding device according to claim 1, characterized in that: the medium injected into the cavity (3) is gas or liquid.

5. Test tube holding device according to any one of claims 1 to 4, characterized in that: the frame (1) is of an internal hollow structure, and a plurality of through holes are formed in the top of the frame (1); the clamping cylinder (2) is hollow inside and has an open structure at the upper end, and the expandable body (21) is positioned in the middle of the clamping cylinder (2); each through hole is provided with one clamping cylinder (2), and the upper part of each clamping cylinder (2) is connected with the through hole.

6. Test tube holding device according to claim 5, characterized in that: a matched cylinder (6) is arranged in part or all of the clamping cylinder (2).

7. Test tube holding device according to claim 5, characterized in that: the bottom of the clamping cylinder (2) is connected with the frame (1).

8. Test tube holding device according to any one of claims 1 to 4, characterized in that: the frame (1) comprises an underframe (11), the underframe (11) is of an internal hollow structure, and the top surface of the underframe (11) is provided with a plurality of fixing holes; the clamping cylinder (2) comprises an inner cylinder body (22) and an outer cylinder body (23), the inner cylinder body (22) is hollow, the upper end of the inner cylinder body is open, and the expandable body (21) is located in the middle of the inner cylinder body (22); the outer barrel (23) is sleeved on the periphery of the inner barrel (22) and a gap is formed between the outer barrel (23) and the inner barrel (22), the upper portion of the outer barrel (23) is connected with the upper portion of the inner barrel (22) so that the upper portion of the gap is of a sealing structure, the lower portion of the outer barrel (23) is connected with the fixing hole, and the gap between the inner barrel (22) and the outer barrel (23) and the hollow interior of the bottom frame (11) form the cavity (3).

9. Test tube holding device according to claim 8, characterized in that: frame (1) is still including being located roof (12) above chassis (11), roof (12) through montant (13) with chassis (11) fixed connection, roof (12) corresponding to the fixed orifices position department of chassis (11) has seted up and has placed hole (14), the upper portion of outer barrel (23) with place hole (14) and be connected.