CN215277429U

CN215277429U - Burette rack for food detection

Info

Publication number: CN215277429U
Application number: CN202121304002.1U
Authority: CN
Inventors: 李金雪; 倪冰
Original assignee: Beijing Hanqi Food Ingredients Co ltd
Current assignee: Beijing Hanqi Food Ingredients Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-24
Anticipated expiration: 2031-06-10

Abstract

The utility model relates to the technical field of food detection, and discloses a burette placing rack for food detection, which comprises a bottom plate, wherein a connecting rod which is vertically upward is fixed at the middle position of the upper part of the bottom plate; the middle position of the bottom of the cross rod is fixed at the upper end part of the connecting rod; the glass top plugs and the rubber top plugs are distributed at equal intervals and are respectively arranged on the lower side wall of the cross rod; and the elastic clamping mechanisms are distributed at equal intervals and are arranged on the bottom plate. The utility model discloses operating personnel extrudees the spring with pressing down U type support with the hand, then circles the vertical alignment of lower extreme of buret on the locating ring, then operating personnel can loosen U type support, guarantees that U type support can guarantee under the elasticity of spring resets that the locating ring carries out the centre gripping to the buret and fixes, and stability promotes by a wide margin, avoids placing of prior art to the buret only to set up holding bolt and carry out the centre gripping to lead to the damage problem of buret easily.

Description

Burette rack for food detection

Technical Field

The utility model relates to a food detects technical field, specifically is a burette rack is used in food detection.

Background

Titration is a chemical experimental operation, which is widely used in chemical experiments, and mainly includes acid-base neutralization titration, redox titration, precipitation titration, and complex titration. When a titration experiment is carried out, more experimental instruments such as a pipette, a burette, a conical flask, an iron stand and the like are required to be used; in the experimental process, generally place the erlenmeyer flask on the base of iron stand platform, fix corresponding buret again through the slider and operate on the bracing piece of iron stand platform, and instruments such as pipettes need use other test-tube racks to place.

The storage of the acid burette and the alkaline burette among the prior art is easy to be confused and the corrosion condition, and the placing of the burette among the prior art is only provided with a clamping bolt for clamping, thereby easily causing the damage problem of the burette.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a food detects uses buret rack, has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a burette rack for food detection comprises

A connecting rod which is vertically upward is fixed at the middle position of the upper part of the bottom plate;

the middle position of the bottom of the cross rod is fixed at the upper end part of the connecting rod;

the glass top plugs and the rubber top plugs are distributed at equal intervals and are respectively arranged on the lower side wall of the cross rod;

the elastic clamping mechanisms are distributed at equal intervals and arranged on the bottom plate;

and a burette is clamped between each elastic clamping mechanism and each of the glass top plug and the rubber top plug.

As a preferred embodiment of the present invention, the elastic clamping mechanism comprises a hollow supporting cylinder, a spring and a U-shaped bracket;

the hollow supporting cylinder is vertically and upwards fixed on the bottom plate, the U-shaped support is vertically and upwards movably inserted at the upper part of the hollow supporting cylinder, and the spring is filled in the inner cavity of the hollow supporting cylinder between the bottom of the U-shaped support and the bottom plate; and a positioning ring is fixed at the upper end part of the U-shaped bracket.

As a preferred embodiment of the present invention, a tapping valve is fixed to the lower end of the burette, and the tapping valve is overlapped on the positioning ring.

As a preferred embodiment of the present invention, the glass top plug and the rubber top plug are respectively screwed on the lower side wall of the cross bar; the glass top plug and the rubber top plug are sealed and inserted with the upper end part of the burette.

As an optimal implementation mode of the utility model, the removal notch has all been seted up to hollow support cylinder left and right sides wall, U type support and removal notch slip grafting.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses peg graft the upper end part cloth of acid buret and alkaline buret respectively in glass top stopper and rubber top stopper, separately arrange acid-base buret, the chaotic condition is difficult for taking place, prevent simultaneously that the end plug of buret from taking place the top stopper and take place the corruption condition, and operating personnel extrudees the spring with the hand U type support of pressing downwards, then with the vertical alignment of lower extreme of buret on the position circle, then operating personnel can loosen U type support, guarantee that U type support can guarantee under the elasticity of spring resets that the position circle carries out the centre gripping to the buret and fixes, stability promotes by a wide margin, place to the buret among the avoiding prior art and only set up holding bolt and carry out the centre gripping, thereby lead to the damage problem of buret easily.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of a burette holder for food inspection according to the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;

FIG. 4 is a schematic diagram showing the structure of the distribution position of the moving notch of the burette holder for food detection on the hollow support cylinder;

fig. 5 is the utility model relates to a food detects U type support and position circle connection structure sketch map of burette rack.

In the figure: 1. a cross bar; 2. a base plate; 3. a moving slot; 4. a connecting rod; 5. a glass top plug; 6. rubber top plug; 7. a burette; 8. a tapping valve; 9. a hollow support cylinder; 10. a spring; 11. a U-shaped bracket; 12. and (6) positioning rings.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a burette rack for food detection comprises

A connecting rod 4 which is vertically upward is fixed at the middle position of the upper part of the bottom plate 2;

the middle position of the bottom of the cross rod 1 is fixed at the upper end part of the connecting rod 4;

a plurality of glass top plugs 5 and rubber top plugs 6 which are distributed at equal intervals are respectively arranged on the lower side wall of the cross rod 1;

the elastic clamping mechanisms are distributed at equal intervals and are arranged on the bottom plate 1;

wherein a burette 7 is clamped between each elastic clamping mechanism and the glass top plug 5 and the rubber top plug 6.

In this embodiment, the upper ends of the acidic burette and the alkaline burette are respectively inserted into the glass top plug 5 and the rubber top plug 6 to prevent the top plugs from being corroded.

In a specific embodiment, the elastic clamping mechanism comprises a hollow supporting cylinder 9, a spring 10 and a U-shaped bracket 11;

the hollow supporting cylinder 9 is vertically and upwardly fixed on the bottom plate 2, the U-shaped bracket 11 is vertically and upwardly movably inserted at the upper part of the hollow supporting cylinder 9, and the spring 10 is filled in the inner cavity of the hollow supporting cylinder 9 between the bottom of the U-shaped bracket 11 and the bottom plate 2; the upper end part of the U-shaped bracket 11 is fixed with a positioning ring 12, the lower end part of the burette 7 is fixed with a liquid discharging valve 8, and the liquid discharging valve 8 is lapped on the positioning ring 12. In the setting, utilize the bleeder valve 8 overlap joint of buret 7 on position circle 12, guarantee the support stability of buret 7.

Further, a glass top plug 5 and a rubber top plug 6 are respectively screwed on the lower side wall of the cross rod 1; glass top stopper 5 and rubber top stopper 6 are sealed and are pegged graft with buret 7 upper end, and removal notch 3 has all been seted up to the wall of hollow support cylinder 9 left and right sides, and U type support 11 is pegged graft with removing notch 3 slip. In this setting, U type support 11 can reciprocate in hollow supporting cylinder 9 through removing notch 3, guarantees stability.

It should be noted that, the utility model relates to a burette rack for food detection, each is the general standard component or the part that technical staff in this field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

The working principle is as follows: insert the upper end part cloth of acid buret and alkaline buret respectively in glass top plug 5 and rubber top plug 6, prevent to take place the top plug and take place the corruption condition to operating personnel pushes down U type support 11 with the hand and extrudees spring 10, then with the vertical alignment of lower extreme of buret on position circle 12, then operating personnel can loosen U type support 11, guarantees that U type support 11 can guarantee position circle 12 and carry out the centre gripping fixedly under spring 10's elasticity resets to buret 7.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a food detects uses burette rack which characterized in that: comprises that

A connecting rod (4) which is vertically upward is fixed at the middle position of the upper part of the bottom plate (2);

the middle position of the bottom of the cross rod (1) is fixed at the upper end part of the connecting rod (4);

the glass top plugs (5) and the rubber top plugs (6) are distributed at equal intervals and are respectively arranged on the lower side wall of the cross rod (1);

the elastic clamping mechanisms are distributed at equal intervals and arranged on the bottom plate (2);

and a burette (7) is clamped between each elastic clamping mechanism and each glass top plug (5) and each rubber top plug (6).

2. The burette rack for food detection according to claim 1, wherein: the elastic clamping mechanism comprises a hollow supporting cylinder (9), a spring (10) and a U-shaped bracket (11);

the hollow supporting cylinder (9) is vertically and upwards fixed on the bottom plate (2), the U-shaped support (11) is vertically and upwards movably inserted at the upper part of the hollow supporting cylinder (9), and the spring (10) is filled in the inner cavity of the hollow supporting cylinder (9) between the bottom of the U-shaped support (11) and the bottom plate (2); and a positioning ring (12) is fixed at the upper end part of the U-shaped bracket (11).

3. The burette rack for food detection according to claim 2, wherein: a liquid discharging valve (8) is fixed at the lower end of the burette (7), and the liquid discharging valve (8) is lapped on the positioning ring (12).

4. The burette rack for food detection according to claim 1, wherein: the glass top plug (5) and the rubber top plug (6) are screwed on the lower side wall of the cross rod (1) through threads respectively; the glass top plug (5) and the rubber top plug (6) are sealed and inserted with the upper end part of the burette (7).

5. The burette rack for food detection according to claim 2, wherein: the left side wall and the right side wall of the hollow supporting cylinder (9) are provided with moving notches (3), and the U-shaped support (11) is in sliding insertion connection with the moving notches (3).