CN213180985U - Digestion tube - Google Patents

Abstract

The utility model relates to the technical field of digestion devices and discloses a digestion tube, which comprises a tube body and a positioning piece, wherein the positioning piece is used for positioning the tube body, the positioning piece is movably arranged on the outer wall of the tube body, and the positioning piece can adjust the position along the length extending direction of the tube body; the digestion pipe comprises a pipe body and a positioning piece, wherein the positioning piece is movably arranged on the pipe body, so that the requirement that the digestion pipe is hung in a hole site of digestion equipment through the positioning piece can be met, the digestion pipe is simpler and more convenient to manufacture and install, and the quality is more stable; the length extending direction adjusting position that the setting element can follow the body can guarantee to clear up a plurality of pipe hangers and establish the time, clear up the socle of pipe on a reference surface, can improve the measuring degree of accuracy when measuring intraductal liquid volume.

Description

Digestion tube

Technical Field

The utility model relates to a clear up equipment technical field, especially relate to a clear up pipe.

Background

The digestion device is a common sample pretreatment device, and a common digestion tube is used for containing a sample and is arranged in the digestion device. The graphite digestion device is provided with a graphite platform, a hole site for placing the digestion tube is arranged on the graphite platform, and when the digestion tube is placed in the hole site, the graphite platform is heated by the graphite digestion device, so that the purpose of digesting the sample can be achieved. In the process of placing and digesting the pipe, in order to make and digest the pipe and can longitudinal motion along the hole site, often need make and digest a tub outer wall diameter and be less than the hole site diameter to set up the setting element on digesting the pipe, will digest the pipe hanger through the setting element and establish in the hole site, with the convenience that improves the use.

In the prior art, the positioning piece of the digestion pipe is often required to be prefabricated, the manufacturing difficulty is high, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clear up pipe, aim at solving prior art, clear up the setting element of pipe and often need prefabricated forming, it is high to make the degree of difficulty, has improved manufacturing cost's phenomenon.

The utility model is realized in such a way, the utility model provides a clear up pipe, include

A pipe body;

the positioning piece is used for positioning the pipe body, the positioning piece is movably arranged on the outer wall of the pipe body, and the positioning piece can adjust the position along the length extending direction of the pipe body.

Furthermore, the setting element includes location strip and mounting, the location strip is the arc and arranges, the location strip cover is established clear up on the tub outer wall, the mounting is used for with the head and the tail both ends locking connection of location strip so that the setting element locking is fixed clear up on the pipe.

Furthermore, the fixing piece is a bolt, the head end and the tail end of the positioning strip are respectively provided with a connecting end surface, the connecting end surfaces of the head end and the tail end are oppositely arranged, one end of the head end and the tail end of the positioning strip is provided with a groove, the connecting end surface of one end with the groove is provided with a through hole communicated with the groove, and the connecting end surface of the other end of the head end and the tail end of the positioning strip is provided with a threaded hole opposite to the through hole; the bolt passes through the through hole through the groove and is in threaded connection with the threaded hole.

Furthermore, the positioning strip is made of PEEK or PTFE.

Further, the tube body is cylindrical.

Further, one end of the pipe body is provided with an opening.

Further, the tube body is made of quartz glass.

Furthermore, the pipe body is marked with scales.

Further, the digestion tube further comprises a tube plug, and the tube plug is detachably inserted into the opening of the tube body.

Further, it still includes the strip that shows the temperature to clear up the pipe, it sets up to show the temperature strip on the body outer wall, it can show to show the temperature of body.

Compared with the prior art, the utility model discloses mainly there is following beneficial effect:

the digestion pipe comprises a pipe body and a positioning piece, wherein the positioning piece is movably arranged on the pipe body, so that the requirement that the digestion pipe is hung in a hole site of digestion equipment through the positioning piece can be met, the digestion pipe is simpler and more convenient to manufacture and install, and the quality is more stable; the length extending direction adjusting position that the setting element can follow the body can guarantee to clear up a plurality of pipe hangers and establish the time, clear up the socle of pipe on a reference surface, can improve the measuring degree of accuracy when measuring intraductal liquid volume.

Drawings

Fig. 1 is a schematic structural diagram of a digestion tube provided by an embodiment of the present invention;

fig. 2 is an exploded schematic view of a digestion tube provided by the embodiment of the present invention.

Reference numerals: the device comprises a pipe body 1, a positioning piece 2, a positioning strip 21 and a fixing piece 22.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

Please refer to fig. 1, fig. 1 shows a schematic structural diagram of a digestion tube provided by the present invention, and referring to fig. 2, the digestion tube provided by the present embodiment includes a tube body 1 and a positioning member 2, the positioning member 2 is used for positioning the tube body 1, the positioning member 2 is movably disposed on the outer wall of the tube body 1, and the positioning member 2 can adjust the position along the length extending direction of the tube body 1.

The digestion tube is particularly applied to a digestion device and is provided with a containing groove for containing a digestion sample. For example, in a graphite digestion apparatus, the digestion tube is used to hold a sample to be digested by the graphite digestion apparatus.

The movably arranged positioning element 2 has the following purposes:

first, it needs to be placed in the hole site of dispelling the equipment to clear up the pipe, and just it needs to follow hole site longitudinal movement so that it can withdraw from the hole site of dispelling the equipment to clear up the pipe, so can realize hanging the pipe string of dispelling in the hole site through making setting element 2 card at the opening part of hole site. Or under the condition that the bracket is arranged above the hole site, the aim of hanging the digestion pipe in the hole site can be fulfilled by clamping the positioning piece 2 on the through hole of the bracket.

Secondly, when the digestion tube is filled with liquid and the volume of the liquid in the tube is solved by using an ultrasonic ranging method, an ultrasonic instrument is required to firstly measure the distance from an ultrasonic emitting surface to the liquid level, then the distance from the ultrasonic emitting surface to the tube bottom is subtracted by the distance from the ultrasonic emitting surface to the liquid level, the distance from the liquid level to the tube bottom is obtained, and then the volume of the liquid in the tube is obtained. However, in the actual situation, if adopt with the setting element 2 of body 1 integration, consider factors such as manufacturing error, the ultrasonic face of play is not certain to a plurality of pipe bottoms's distance, and adopts activity setting element 2, can adjust the distance of setting element 2 to the pipe bottom, and then makes the ultrasonic face of play to a plurality of pipe bottoms's distance be certain, ensures the measuring degree of accuracy.

The use of the movably arranged positioning element 2 has the following advantages:

first, the setting element 2 of activity setting can make alone, install alone, and is simple and convenient, has reduced manufacturing cost. Most of the integrated positioning pieces 2 are prefabricated, and are complex to manufacture and high in cost.

In the second aspect, the positioning part 2 and the pipe body 1 are integrated to form the digestion pipe, because the problem of inconsistent wall thickness exists, internal stress is easily generated when the pipe is heated, the phenomenon of damage occurs, and the positioning part 2 which is movably arranged can effectively avoid the problem.

In the third aspect, the digestion tube integrating the positioning piece 2 and the tube body 1 is difficult to manufacture, so that the problem of nonstandard size is easily caused, the sample volume of the digestion tube is influenced, and the movably arranged positioning piece 2 can also effectively avoid the situation.

In the fourth aspect, the tube bottoms of the digestion tubes are ensured to be on one reference surface, and the measurement accuracy is improved when the volume of liquid in the tubes is measured.

The digestion pipe comprises a pipe body 1 and a positioning part 2, wherein the positioning part 2 is movably arranged on the pipe body 1, so that the requirement that the digestion pipe is hung in a hole site of digestion equipment through the positioning part 2 can be met, the digestion pipe is simpler and more convenient to manufacture and install, and the quality is more stable; the length extending direction adjusting position that body 1 can be followed to setting element 2 can guarantee to clear up a plurality of pipe hangers and establish the time, clear up the socle of pipe on a reference surface, can improve the measuring degree of accuracy when measuring intraductal liquid volume.

As an embodiment of the utility model, setting element 2 includes location strip 21 and mounting 22, and location strip 21 is the arc and arranges, and location strip 21 cover is established on clearing up a tub outer wall, and mounting 22 is used for fixing the head and the tail both ends locking connection of location strip 21 so that setting element 2 locking is fixed on clearing up a tub.

Specifically, the positioning strips 21 are arranged in an arc shape around the outer wall of the digestion tube, and the fixing member 22 is used for locking and fixing the positioning strips 21 on the digestion tube, so that the positioning member 2 effectively functions. The positioning strip 21 and the outer wall of the digestion tube should have enough friction force to ensure that the positioning strip 21 cannot be displaced due to stress.

Preferably, the fixing member 22 is a bolt, the head and the tail of the positioning strip 21 are respectively provided with a connecting end surface, the connecting end surfaces of the head and the tail are arranged oppositely, one of the head and the tail of the positioning strip 21 is provided with a groove, the connecting end surface of one end with the groove is provided with a through hole communicated with the groove, and the connecting end surface of the other end of the head and the tail of the positioning strip 21 is provided with a threaded hole opposite to the through hole; the bolt passes through the through hole through the groove and is in threaded connection with the threaded hole.

Specifically, the positioning strips 21 are arranged in an arc shape, and a gap may or may not be formed between the end surfaces of the head and the tail.

One end in the head and the tail both ends of location strip 21 has the recess, and the recess opening sets up in the other end in the head and the tail both ends dorsad.

Further, when the positioning strip 21 is too long and is still provided with a margin after the outer wall of the digestion tube is arranged, waist holes are formed in the margins at the two ends of the positioning strip 21 along the vertical direction of the extension direction of the length of the digestion tube, so that bolts penetrate through the waist holes, nuts are screwed on the bolts, and the positioning strip 21 is locked and fixed on the outer wall of the digestion tube.

Preferably, the positioning strip 21 is made of PEEK or PTFE.

PEEK is polyether-ether-ketone resin, which is a special engineering plastic with excellent performance, has more remarkable advantages compared with other special engineering plastics, has high temperature resistance, excellent mechanical property, good self-lubricating property, chemical corrosion resistance, flame retardance, peeling resistance, irradiation resistance, stable insulation property, hydrolysis resistance and easy processing, is a recognized thermoplastic material with the highest comprehensive performance in severe environment, and can be used in high-end science and technology such as machinery, nuclear engineering, aviation and the like due to super-strong mechanical property.

Here, because often need to dispel the intraductal sample heating of dispelling in the process of dispelling, and then lead to dispelling the high temperature of pipe, the location strip 21 that adopts the PEEK material is high temperature resistant, can effectively guarantee the stability in use of location strip 21.

PTFE has excellent high and low temperature resistance, wear resistance, corrosion resistance, chemical resistance and insulating property, so that the PTFE can play a role in surface protection, corrosion prevention, sealing, lubrication and prolonging the service life of parts.

Here, the positioning strip 21 made of PTFE is resistant to high temperature, and the use stability of the positioning strip 21 can be effectively ensured.

Further, the pipe body 1 is cylindrical, and is convenient to manufacture and clean.

Specifically, the pipe body 1 has an opening at one end.

Preferably, the digestion tube further comprises a tube plug, the tube plug is detachably arranged at the opening of the tube body 1, and the outer diameter of the tube plug is matched with the inner diameter of the digestion tube. The pipe plug is cylindrical and is inclined inwards in the direction from top to bottom so as to be better inserted at the opening of the digestion pipe.

Furthermore, the tube 1 is made of quartz glass.

In particular, quartz glass is a specialty glass containing only a single component of silica. First, quartz glass has a very low coefficient of thermal expansion, high temperature resistance, excellent chemical stability, excellent electrical insulation, low and stable ultrasonic retardation, optimal uv-transparent spectral properties and visible and near infrared spectral properties, and mechanical properties higher than those of ordinary glass. Secondly, the quartz glass is made by melting natural crystalline quartz (crystal or pure silica) or synthetic silane at high temperature. The molten product has excellent processability, and in an extremely high viscosity range, the tube and rod can be subjected to hot working as in the case of ordinary glass fine working, and can also be subjected to high-speed machining using an abrasive tool made of diamond or silicon carbide, thereby making various instruments and special products having complicated shapes.

The digestion tube made of quartz glass material has good processing performance, reduces processing difficulty and production cost, and has excellent chemical stability and high temperature resistance. Therefore, when in use, the digestion tube can be ensured to contain various digestion samples, and the digestion tube can be stably used when being heated.

Further, the scale is marked on the pipe body 1, so that the sample capacity of the pipe can be effectively measured and cleared up.

Optionally, it still includes the strip that shows the temperature to clear up the pipe, and the strip that shows the temperature is pasted on body 1 outer wall, and the strip that shows the temperature can show body 1's temperature.

Specifically, the temperature indication strip is provided with a material which can change color along with temperature change, wherein the temperature indication strip is provided with a plurality of temperature ranges, and the temperature indication strip displays different colors in each temperature range. The user knows the temperature range that the pipe is located through observing the colour of temperature indicating strip.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A digestion tube, comprising:

a pipe body;

the positioning piece is used for positioning the pipe body, the positioning piece is movably arranged on the outer wall of the pipe body, and the positioning piece can adjust the position along the length extending direction of the pipe body.

2. The digestion tube according to claim 1, wherein the positioning member comprises a positioning strip and a fixing member, the positioning strip is arranged in an arc shape, the positioning strip is sleeved on the outer wall of the digestion tube, and the fixing member is used for locking and connecting the head end and the tail end of the positioning strip so as to enable the positioning member to be locked and fixed on the digestion tube.

3. The digestion tube according to claim 2, wherein the fixing member is a bolt, the head and the tail of the positioning strip are respectively provided with connecting end surfaces, the connecting end surfaces of the head and the tail are oppositely arranged, one end of the head and the tail of the positioning strip is provided with a groove, the connecting end surface of one end with the groove is provided with a through hole communicated with the groove, and the connecting end surface of the other end of the head and the tail of the positioning strip is provided with a threaded hole opposite to the through hole; the bolt passes through the through hole through the groove and is in threaded connection with the threaded hole.

4. The digestion tube according to claim 2, wherein the positioning strip is of PEEK or PTFE.

5. The digestion tube as recited in claim 1, wherein the tube body is cylindrical.

6. The digestion tube as claimed in claim 1, wherein the tube body has an opening at one end.

7. The digestion tube according to claim 1, wherein the tube body is made of quartz glass.

8. The digestion tube according to claim 1, wherein the tube body is graduated.

9. The digestion tube according to claim 6, further comprising a plug removably insertable at the opening of the tube body.

10. The digestion tube according to claim 1, further comprising a temperature indication strip, wherein the temperature indication strip is adhered to the outer wall of the tube body, and the temperature indication strip can display the temperature of the tube body.

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