CN205920099U - Pipe box is titrated to easy liquid feeding antiseep - Google Patents

Abstract

The utility model discloses a pipe box is titrated to easy liquid feeding antiseep belongs to chemical chemical analysis experimental facilities field. This buret cover including the funnel body with connect the honeycomb duct in its below, the pipe wall of honeycomb duct is cavity sandwich structure, the combination forms with guide pipe inner wall by the pipe outer wall arranged with the axle center for it, forms toroidal cavity between pipe outer wall and the guide pipe inner wall, the cooperation is closely set to the buret upper end mouth of pipe that this toroidal cavity used with analyzed experiment under operating condition, turns over at the terminal outwards book of pipe outer wall simultaneously to be formed with annular reservoir. The utility model discloses a during the smooth inflow buret of standard titration solution can be guaranteed to the titration pipe box, the reservoir was used for the collection to titrate the solution part of seepage occasionally in the joining simultaneously, avoided the human perhaps environment of pollution. In addition, should titrate the pipe box for forming integrative titration pipe box, has and uses and rinse convenient characteristics.

Description

Easily liquid feeding antiseep titration pipe box

Technical field

This utility model belongs to chemical analysis field of experiment equipment, titrates more particularly to a kind of easy liquid feeding antiseep Pipe box.

Background technology

Existing burette, top Sheng liquid zone to liquid feeding top is all cylinder, and cylindrical bore is little.Standardized titration Solution generally uses volumetric flask or port grinding bottle and loads, when from volumetric flask or port grinding bottle to burette in shift standard titration solution When, adopt two methods more.Method one is to be directly added into, and result is easily to omit standard titration solution outside burette, even if It is poured slowly into, be also often difficult to avoid that.Especially for severe corrosive or the standard titration solution with contaminative, omit outside, Easily human body and environment are caused to corrode and pollute.Method two is to proceed to standard titration solution by the beaker having draining hole to drip In fixed tube, but the standard solution accuracy in order to add, generally before the use, need to beaker standard titration solution at least Washing 3 times, had now not only wasted standard titration solution but also had wasted time and energy, wasted man power and material.

Content of the invention

The purpose of this utility model seeks to provide a kind of easy liquid feeding antiseep to titrate pipe box.This titration pipe box is arranged on and drips Fixed tube mouth of pipe upper end, for quickly and easily adding standard titration solution, meanwhile, the annular reservoir of titration pipe box lower end can use The standard titration solution accidentally exosmosing in storage, prevents liquid pollution environment and the human body exosmosing.

For achieving the above object, the easy liquid feeding antiseep burette liquid feeding set designed by this utility model, including infundibular body With the mozzle connecting thereunder, the tube wall of described mozzle is in hollow sandwich structure, outside its conduit by concentric arrangement Wall and pipe inner wall combine, and form toroidal cavity, described toroidal cavity is in work between described conduit outer wall and pipe inner wall It is used as tight-lipped with the burette upper pipes of analysis experiment under state close to set cooperation.

Further, the end of described conduit outer wall is outwards folded over is formed with annular reservoir.

Yet further, the upper port diameter d of described infundibular body and infundibular body lower port diameter d meets following mathematics public affairs Formula: d >=2d.

Further, described infundibular body is silica gel material infundibular body, and described mozzle is silica gel material mozzle, both In integrated formed structure.

The operation principle of titration pipe box of the present utility model: this burette is set on burette mouth of pipe upper end, and titrates The pipe upper end mouth of pipe is embedded in the toroidal cavity between the conduit outer wall of titration pipe box and pipe inner wall it is ensured that liquid is from burette Set is smoothly flowed in burette along mozzle and mozzle with the junction of burette；The lower end of titration pipe box is additionally provided with ring Shape reservoir, this annular reservoir is that the lower end of conduit outer wall outwards turns down the reservoir of formation, pours into from infundibular body upper port During standard titration solution, standard titration solution tends to have seepage, the liquid spilling easily along mozzle following current to titration pipe outer wall on, The setting of annular reservoir, its purpose is that and directly flows liquid into wherein.

The beneficial effect of burette liquid feeding set of the present utility model:

1st, burette of the present utility model is set on burette mouth of pipe upper end, and burette upper pipes mouth is closely set It is ensured that liquid flows into burette from titration pipe box along mozzle in toroidal cavity between conduit outer wall and pipe inner wall In, it is to avoid standard titration solution outwards overflows.

2nd, titration pipe box lower end of the present utility model is additionally provided with annular reservoir, and this annular reservoir is used for being collected in addition There is the part of seepage, it is to avoid pollution human body or environment during standard titration solution.

3rd, titration pipe box of the present utility model, its infundibular body upper port bore be infundibular body lower port bore twice with On, facilitate rapidly joining of titrand.

4th, titration pipe box of the present utility model is group all-in-one-piece titration pipe box, has the characteristics that to use and easy to clean.

Brief description

Fig. 1 titrates the main cross section structure diagram of pipe box for this utility model；

Fig. 2 titrates the main cross section structure diagram after pipe box is connected with burette for this utility model；

The label of in figure is as follows: infundibular body 1 (wherein: upper port 1.1, lower port 1.2), mozzle 2 are (wherein: outside conduit Wall 2.1, pipe inner wall 2.2, toroidal cavity 2.3, annular reservoir 2.4), burette 3.

Specific embodiment

In order to preferably explain this utility model, it is further elucidated with of the present utility model main below in conjunction with specific embodiment Content, but content of the present utility model is not limited solely to following examples.

As shown in figure 1, present embodiment discloses a kind of titration pipe box of easy liquid feeding antiseep, this titration pipe box includes funnel Body 1 and the mozzle 2 being connected to infundibular body 1 lower section, wherein, the tube wall of mozzle 2 is in hollow sandwich structure, and it is by concentric cloth The conduit outer wall 2.1 put and pipe inner wall 2.2 combine, and form annular between described conduit outer wall 2.1 and pipe inner wall 2.2 Cavity 2.3, described toroidal cavity 2.3 in working order burette 3 upper pipes lower and that analysis is tested tight-lipped close set cooperation, As shown in Fig. 2 during therefore, it is possible to ensureing standard titration solution along pipe inner wall following current, titration pipe box and titration can be passed through , without there is seepage in the junction of pipe；Further, since the burette bore of laboratory has various criterion, of the present utility model Titration pipe box can make according to requirement of experiment, has reached the requirement being flexibly matched with.

Understand, the end of described conduit outer wall 2.1 is outwards folded over to be formed with annular reservoir 2.4, should further in conjunction with Fig. 1 Annular reservoir 2.4 arranges certain altitude, is simultaneously located at the periphery of conduit outer wall, when being used for being stored in transfer solution, easily The part spilt, the solution spilling can be along conduit outer wall slowly following current downwards, if not having annular reservoir, standardized titration is molten Liquid eventually flows to titration pipe outer wall, staff when operation analysis titration experiments it is easy to touch the solution of seepage, if This standard titration solution is just strong oxidizing property or corrosive liquid, will give people body and bring larger injury.This practicality The liquid of seepage easily collected wherein by new annular liquid storage slot number, it is to avoid above-mentioned problem, simultaneously the storage of this annular Liquid bath cleaning up is also more convenient.

Additionally, in order to ensure smoothly to transfer to liquid in burette, by the diameter d of the upper port 1.1 of infundibular body 1 It is designed to meet following mathematical formulae: d >=2d with the diameter d of the lower port 1.2 of infundibular body 1, i.e. the upper port 1.1 of infundibular body 1 Bore d be more than the twice of bore d of lower port 1.2 of infundibular body 1, the present embodiment be preferably twice relation, larger caliber Advantage on the one hand be to facilitate the fast transfer of liquid, on the other hand can be used for storing partially liq.

Simultaneously as often using strong acid, highly basic or strong oxidizing property in laboratory, and there is corrosive standard drip Determine solution, the infundibular body 1 therefore in the present embodiment is the silica gel material infundibular body of resistance to acids and bases, described mozzle 2 is silica gel material Matter mozzle, both are in integrated formed structure, use and clean more convenient.

Above example is only optimal and illustrates, and is not the restriction to embodiment of the present utility model.Except above-mentioned reality Apply exception, this utility model also has other embodiment.All employing equivalents or the technical scheme of equivalent transformation formation, all fall The protection domain requiring in this utility model.

Claims (5)

1. a kind of easy liquid feeding antiseep titrates pipe box, including infundibular body (1) and connection mozzle (2) thereunder, its feature It is: the tube wall of described mozzle (2) is in hollow sandwich structure, and it is by the conduit outer wall (2.1) and conduit of concentric arrangement Wall (2.2) combines, and forms toroidal cavity (2.3), described ring between described conduit outer wall (2.1) and pipe inner wall (2.2) Burette (3) upper pipes lower and that analysis is tested are tight-lipped in working order close sets cooperation for shape cavity (2.3).

2. easy liquid feeding antiseep titration pipe box according to claim 1 it is characterised in that: described conduit outer wall (2.1) End is outwards folded over to be formed with annular reservoir (2.4).

3. easy liquid feeding antiseep according to claim 1 and 2 titrate pipe box it is characterised in that: described infundibular body (1) upper Port (1.1) diameter d meets following mathematical formulae: d >=2d with lower port (1.2) the diameter d of infundibular body (1).

4. easy liquid feeding antiseep titration pipe box according to claim 1 and 2 it is characterised in that: described infundibular body (1) is silicon Glue material matter infundibular body, described mozzle (2) is silica gel material mozzle, and both are in integrated formed structure.

5. easy liquid feeding antiseep titration pipe box according to claim 3 it is characterised in that: described infundibular body (1) is silica gel Material infundibular body, described mozzle (2) is silica gel material mozzle, and both are in integrated formed structure.