CN210787424U

CN210787424U - Burette's centre gripping equipment

Info

Publication number: CN210787424U
Application number: CN201921729689.6U
Authority: CN
Inventors: 魏小雪; 陈东菊
Original assignee: Henan Standard Spectrum Testing Technology Co ltd
Current assignee: Henan Standard Spectrum Testing Technology Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-06-19
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a buret's centre gripping equipment relates to the relevant equipment technical field of buret, has solved present buret centre gripping equipment and can not carry out the problem that suitable regulation according to buret's size, the utility model discloses a fixing base, the top fixed mounting of fixing base has the screw thread lead screw of vertical direction, the cover is equipped with the carousel on the screw thread lead screw, the central point of carousel puts the screw hole of seting up with screw thread lead screw looks adaptation, square through hole has been seted up on the carousel, the equal movable mounting in inner wall both sides of square through hole has splint, be provided with on the carousel and press from both sides tight canceling release mechanical system to buret. Establish and the threaded connection carousel through the cover on the screw lead screw, so rotate the carousel just can adjust the height of carousel to can adapt to the buret of different length, have rotatable splint through the inside movable mounting at square through hole, and the cooperation canceling release mechanical system just can accomplish and carry out the centre gripping to the buret that the thickness differs.

Description

Burette's centre gripping equipment

Technical Field

The utility model relates to a buret correlation equipment technical field, more specifically are to relate to a buret's centre gripping equipment for it is fixed to buret's centre gripping.

Background

Titration is an important experimental operation in scientific research, in the titration apparatus, a burette needs to be fixed on a titration frame by a fixing device or a clamp, and the prior fixing device mainly adopts the butterfly clamp, the spring clamp, the spiral clamp, the magnet adsorption fixation and other modes to fix the burette.

Most of burette clamps that use at present can't carry out suitable regulation according to the size of burette, can't satisfy the burette of the multiple specification and size in laboratory through deciding the arm lock and moving the regulation of the spring mechanism between the double-layered wall, in the within range of regulation, the easy landing of the burette of small dimension causes the damage of burette, the burette of big specification then easily causes the fragmentation of burette because the effort between the double-layered wall is too big, light then cause experimental error, the waste time, heavy then damage laboratory glassware, cause solution outflow in the burette to cause the harm to the operator, still need the space of improvement. It is therefore desirable to design a burette holding apparatus to address the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the prior burette clamping equipment can not be properly adjusted according to the size of the burette, the utility model provides a burette clamping equipment.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a buret's centre gripping equipment, includes the fixing base, the top fixed mounting of fixing base has the screw lead screw of vertical direction, the cover is equipped with the carousel on the screw lead screw, the central point of carousel puts the screw hole of offering with screw lead screw looks adaptation, square through hole has been seted up on the carousel, the equal movable mounting in inner wall both sides of square through hole has the splint that rotatable and level were placed, be provided with two splint of drive on the carousel and reset and press from both sides tight canceling release mechanical system to the buret.

Furthermore, the number of the square through holes is a plurality of, and the square through holes are uniformly arranged on the turntable.

Further, splint are the cuboid, canceling release mechanical system is including difference fixed mounting in splint both sides and mutual opposite connecting rod, two one side of keeping away from splint on the connecting rod all articulates there is the fixed block, two the fixed block all with the inner wall fixed connection of rectangle through-hole, two all the cover is equipped with reset spring, two on the connecting rod reset spring's both sides all with fixed block and splint fixed connection.

Furthermore, one side of the clamping plate used for clamping the burette is provided with an elastic rubber pad.

Further, the quantity of splint is four, four splint set up respectively around the square through hole inner wall, and two mutually opposite splint specifications are the same, four splint can make up and form a rectangle.

The working principle is as follows: during the use, rotate the height of carousel adjustment carousel according to buret's length, select the square through hole of suitable position to insert the buret, select to insert the buret from square through hole top or below according to buret's shape, the buret that passes square through hole makes reset spring take place to deform under the external force effect, so two opposite splint can press from both sides tight buret.

The utility model has the advantages as follows:

1. the utility model discloses simple structure, convenient to use establishes and the threaded connection carousel through the cover on the screw lead screw, so rotate the carousel and just can adjust the height of carousel to can adapt to the burette of different length, have rotatable splint through the inside movable mounting at square through hole, and cooperation canceling release mechanical system just can accomplish and carry out the centre gripping to the burette that the thickness differs.

2. Set up to a plurality of through the quantity with square through hole, can select a suitable angle to test when the carousel is adjusted to suitable position, also can install a plurality of buret simultaneous test simultaneously for equipment is not only convenient but also high-efficient.

3. Through setting up reset spring, reset spring can give two opposite splint for a power of opposition of buret, and cooperation elastic rubber pad uses, because coefficient of friction is great between elastic rubber pad and the glass test tube, so the very light centre gripping buret.

4. The number of the clamping plates is set to be four, so that the clamping effect of the clamping plates received by the titration test tubes is more obvious.

Drawings

FIG. 1 is a schematic view of the burette of the present invention when not clamped;

FIG. 2 is a schematic view of the structure of the present invention when holding a burette;

fig. 3 is a top view of the turntable of the present invention;

fig. 4 is an enlarged schematic view of the structure a in fig. 3.

Reference numerals: 1-a fixed seat, 2-a threaded screw rod, 3-a reset mechanism, 301-a fixed block, 302-a connecting rod, 4-a square through hole, 5-a clamping plate, 6-a burette and 7-a rotary table.

Detailed Description

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

Example 1

Please refer to fig. 1 and 2, the utility model provides a burette's centre gripping equipment, including fixing base 1, the top fixed mounting of fixing base 1 has the screw lead screw 2 of vertical direction, the cover is equipped with carousel 7 on the screw lead screw 2, the central point of carousel 7 puts the screw hole of seting up with 2 looks adaptations of screw lead screw, square through hole 4 has been seted up on the carousel 7, the equal movable mounting in inner wall both sides of square through hole 4 has the splint 5 that rotatable and level were placed, be provided with two splint 5 of drive on the carousel 7 and reset and press from both sides tight canceling release mechanical system 3 to burette 6.

Establish and threaded connection carousel 7 through the cover on screw lead screw 2, so rotate carousel 7 and just can adjust the height of carousel 7 to can adapt to the buret 6 of different length, have rotatable splint 5 through the inside movable mounting at square through hole 4, and cooperate canceling release mechanical system 3 just can accomplish and carry out the centre gripping to the buret 6 that the thickness differs.

Example 2

Referring to fig. 1-2, the present embodiment is further optimized based on embodiment 1, specifically, the number of the square through holes 4 is several, and the square through holes 4 are uniformly formed on the turntable 7.

Set up to a plurality of through the quantity with square through hole 4, can select a suitable angle to test when carousel 7 adjusts suitable position, also can install a plurality of buret 6 simultaneously experimental for equipment is not only convenient but also high-efficient.

Example 3

Referring to fig. 1-3, the present embodiment is further optimized on the basis of embodiment 1 or embodiment 2, specifically, the clamping plate 5 is a cuboid, the reset mechanism 3 includes connecting rods 302 respectively fixedly mounted on two sides of the clamping plate 5 and opposite to each other, one side of each of the two connecting rods 302 away from the clamping plate 5 is hinged with a fixing block 301, the two fixing blocks 301 are fixedly connected with the inner wall of the rectangular through hole 4, the two connecting rods 302 are respectively sleeved with a reset spring, and two sides of the two reset springs are fixedly connected with the fixing blocks 301 and the clamping plate 5.

In this embodiment, the last one side that is used for centre gripping buret 6 of splint 5 all is provided with the elastic rubber pad, and the quantity of splint 5 is four, and four splint 5 set up respectively around the 4 inner walls of square through hole, and two splint 5 specifications that oppose each other are the same, and four splint 5 can make up and form a rectangle.

Through setting up reset spring, reset spring can give two opposite splint 5 for a power of opposition of buret, and cooperation elastic rubber pad uses, because coefficient of friction is great between elastic rubber pad and the glass test tube 6, so the centre gripping that can be very light buret 6.

By setting the number of the clamping plates 5 to four, the clamping effect of the clamping plates 5 on the holding of the burette 6 is more remarkable.

During the use, rotate the height of carousel 7 adjustment carousel 7 according to buret 6's length, select the square through hole 4 of suitable position to insert buret 6, select to insert buret 6 from square through hole 4 top or below according to buret 6's shape, the buret 6 that passes square through hole 4 makes reset spring take place deformation under the effect of external force, so two opposite splint 5 can press from both sides tight buret 6.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. The utility model provides a buret's centre gripping equipment, includes fixing base (1), its characterized in that: the top fixed mounting of fixing base (1) has screw lead screw (2) of vertical direction, the cover is equipped with carousel (7) on screw lead screw (2), the central point of carousel (7) puts the screw hole of seting up with screw lead screw (2) looks adaptation, square through hole (4) have been seted up on carousel (7), the equal movable mounting in inner wall both sides of square through hole (4) has splint (5) that rotatable and level were placed, be provided with two splint (5) of drive on carousel (7) and reset and press from both sides tight canceling release mechanical system (3) to buret (6).

2. The burette holding apparatus of claim 1, wherein: the number of the square through holes (4) is a plurality, and the square through holes (4) are uniformly arranged on the turntable (7).

3. The burette holding apparatus of claim 1, wherein: splint (5) are the cuboid, canceling release mechanical system (3) are including respectively fixed mounting in splint (5) both sides and mutual opposite connecting rod (302), two one side of keeping away from splint (5) on connecting rod (302) all articulates there is fixed block (301), two fixed block (301) all with the inner wall fixed connection of rectangle through-hole (4), two all the cover is equipped with reset spring on connecting rod (302), two reset spring's both sides all with fixed block (301) and splint (5) fixed connection.

4. The burette holding apparatus of claim 1, wherein: and elastic rubber pads are arranged on one sides of the clamping plates (5) used for clamping the burette (6).

5. The burette holding apparatus of claim 1, wherein: the quantity of splint (5) is four, four splint (5) set up respectively around square through hole (4) inner wall, and two splint (5) specifications that mutually oppose are the same, four splint (5) can make up and form a rectangle.