CN217989372U

CN217989372U - Novel burette clamp

Info

Publication number: CN217989372U
Application number: CN202221047506.4U
Authority: CN
Inventors: 李闯; 孙宏政; 万凤娇; 崔立鹏
Original assignee: Pony Test Group Jilin Co ltd
Current assignee: Pony Test Group Jilin Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-12-09
Anticipated expiration: 2032-05-05

Abstract

The utility model belongs to the technical field of buret centre gripping technique and specifically relates to indicate a novel buret clamp, comprising a base plate, bottom plate upper end fixedly connected with support column, support column periphery sliding connection has the carriage release ring, carriage release ring periphery fixedly connected with side lever, side lever front end fixedly connected with bearing frame, the bearing frame internal rotation is connected with the pivot, pivot periphery fixedly connected with eccentric wheel, eccentric wheel periphery fixedly connected with handle, sliding connection has the carriage release lever in the side lever, carriage release lever one end fixedly connected with movable plate, the movable plate closely laminates with the eccentric wheel, carriage release lever other end fixedly connected with grip block. The utility model discloses a under the cooperation of handle, eccentric wheel, bearing frame, pivot, movable plate, carriage release lever and grip block, just can make the buret centre gripping more firm to the buret uses.

Description

Novel burette clamp

Technical Field

The utility model relates to a burette centre gripping technical field especially relates to a novel burette clamp.

Background

The burette is the main measuring apparatus used in the titration analysis method, and can be divided into two types: one is an acid burette and the other is a base burette. The lower end of the acid burette is provided with a glass piston, and can be filled with acidic or oxidative titration liquid, but can not be filled with alkaline titration liquid, because the alkaline titration liquid can lead the piston to be bonded with a piston sleeve and is difficult to rotate; the basic burette is used for containing alkaline solution, the lower end of the basic burette is connected with a rubber tube, glass beads are placed in the rubber tube to control the solution to flow out, and the lower end of the rubber tube is connected with a sharp-nose glass tube. Any solution that can react with the rubber tube, such as potassium permanganate, iodine, etc., cannot be put into the basic burette.

Buret need utilize the buret clamp to cooperate when using, and traditional buret clamp all adopts wooden material preparation to form, and wooden material's buret clamp is when carrying out the centre gripping buret, and the unstability of centre gripping makes the buret drop from the buret clamp easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel burette clamp.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides a novel burette clamp, comprises a base plate, bottom plate upper end fixedly connected with support column, support column periphery sliding connection has the shift ring, shift ring periphery fixedly connected with side lever, side lever front end fixedly connected with bearing frame, the bearing frame internal rotation is connected with the pivot, pivot periphery fixedly connected with eccentric wheel, eccentric wheel periphery fixedly connected with handle, sliding connection has the carriage release lever in the side lever, carriage release lever one end fixedly connected with movable plate, the movable plate closely laminates with the eccentric wheel, carriage release lever other end fixedly connected with grip block.

As a further description of the above technical solution:

the shift ring female connection has fixing bolt, fixing bolt keeps away from the one end of shift ring and is provided with anti-skidding handle, fixing bolt runs through the shift ring, and the during operation through not hard up fixing bolt, the shift ring that just is convenient for at this moment moves on the support column to can adjust the height of side lever.

As a further description of the above technical solution:

the anti-skidding rubber pads are laid at the lower end of the bottom plate, the work is dead, and the friction force of the bottom plate can be increased under the action of the anti-skidding rubber pads, so that the bottom plate can be stably placed in a needed place.

As a further description of the above technical solution:

the circular port has been seted up to the side lever up end, the groove has been seted up to the circular port inner wall, accomodate inslot sliding connection has the grip block, and the during operation is convenient for pass the buret side lever through under the effect of circular port, then can accomodate the grip block under the effect of accomodating the groove, prevents that the grip block from hindering the buret and passing the side lever.

As a further description of the above technical solution:

the grip block is circular-arc, and the grip block keeps away from the one side of carriage release lever and is provided with the rubber layer, and the during operation because the grip block is circular-arc, just so can increase the area of contact between grip block and the buret, not only increase the frictional force with the buret under the effect on rubber layer simultaneously, has also reached the protection to the buret.

As a further description of the above technical solution:

the movable plate is fixedly connected with a spring, the spring is fixedly connected with the side rods, the moving rod is located in the middle of the spring, when the burette is detached in operation, the movable plate can be kept away from the eccentric edge of the eccentric wheel by breaking the handle, and therefore the clamping plate can be conveniently stored in the storage groove under the action of the spring, and the burette can be conveniently taken out.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this novel burette clamp, through at the handle, the eccentric wheel, the bearing frame, the apparatus further comprises a rotating shaft, the movable plate, under the cooperation of carriage release lever and grip block, break the handle off with the fingers and thumb, make the handle rotate to the side lever direction, at this moment just can make the grip block stretch out under the effect of eccentric wheel and accomodate the groove, just can reach the centre gripping to the burette like this under the effect of grip block, because the grip block is circular-arcly, just increase and the contact surface of burette, make the fixed more stable of burette, so that the burette uses.

2. Compared with the prior art, this novel burette clamp through not hard up fixing bolt, at this moment just is convenient for the shift ring to remove at the support column to can adjust the height of side lever, so that install the burette in the side lever, also be applicable to the burette of co-altitude not simultaneously.

Drawings

Fig. 1 is a schematic front view of the whole structure of a novel burette clamp;

fig. 2 is a schematic left-side sectional structure view of a novel burette clamp provided by the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 of the novel burette clamp according to the present invention.

Illustration of the drawings:

1. a base plate; 2. a support column; 3. a moving ring; 4. a side lever; 5. a circular hole; 6. a receiving groove; 7. a clamping plate; 8. a travel bar; 9. a spring; 10. moving the plate; 11. an eccentric wheel; 12. a rotating shaft; 13. a bearing seat; 14. a handle; 15. and fixing the bolt.

Detailed Description

Referring to fig. 1-3, the utility model provides a pair of novel burette clamp, comprising a

base plate

1, 1 upper end fixedly connected with support column 2 of bottom plate, 2 periphery sliding connection of support column have

shift collar

3, 3 periphery fixedly connected with side lever 4 of shift collar, 4 front end fixedly connected with bearing frame 13 of side lever, 13 internal rotations of bearing frame are connected with

pivot

12, 12 periphery fixedly connected with eccentric wheels 11 of pivot, 11 periphery fixedly connected with handles 14 of eccentric wheels, sliding connection has carriage release lever 8 in the

side lever

4, 8 one end fixedly connected with movable plates 10 of carriage release lever, movable plates 10 closely laminate with

eccentric wheels

11, 8 other end fixedly connected with grip block 7 of carriage release lever.

As a further embodiment of the above technical solution:

there is fixing bolt 15 in the shift ring 3 threaded connection, and the one end that fixing bolt 15 kept away from shift ring 3 is provided with anti-skidding handle, and fixing bolt 15 runs through shift ring 3, and the during operation is through not hard up fixing bolt 15, and the shift ring 3 of just being convenient for at this moment moves on support column 2 to can adjust the height of side lever 4.

As a further embodiment of the above technical solution:

anti-skidding rubber pads are laid at the lower end of the bottom plate 1, the work is dead, and the friction force of the bottom plate 1 can be increased under the action of the anti-skidding rubber pads, so that the bottom plate 1 can be stably placed in a needed place.

As a further embodiment of the above technical solution:

circular port 5 has been seted up to side lever 4 up end, and circular port 5 inner wall has been seted up and has been accomodate groove 6, accomodates the inslot 6 sliding connection and have grip block 7, and the during operation is through under circular port 5's effect, is convenient for pass side lever 4 with the buret, then can accomodate grip block 7 under the effect of accomodating groove 6, prevents that grip block 7 from hindering the buret to pass side lever 4.

As a further embodiment of the above technical solution:

the clamping plate 7 is arc-shaped, and the side of the clamping plate 7 far away from the moving rod 8 is provided with a rubber layer, so that the contact area between the clamping plate 7 and the burette can be increased due to the arc-shaped clamping plate 7 in work, and meanwhile, the friction force between the clamping plate 7 and the burette is increased under the action of the rubber layer, and the burette is protected.

As a further embodiment of the above technical solution:

the movable plate 10 is fixedly connected with a spring 9, the spring 9 is fixedly connected with the side rod 4, the movable rod 8 is located in the middle of the spring 9, when the burette is disassembled, in operation, the eccentric edge of the eccentric wheel 11 can be far away from the movable plate 10 by breaking the handle 14, and therefore the clamping plate 7 can be conveniently stored in the storage groove 6 under the action of the spring 9, and the burette can be conveniently taken out.

The working principle is as follows:

use the utility model discloses the time, earlier not hard up fixing bolt 15, then just so be convenient for give the descending with side lever 4 and get off, thereby be convenient for pass buret side lever 4's circular port 5, when side lever 4 descends the certain distance, screw up fixing bolt 15, at this moment, just can reach the fixed to shift ring 3, make shift ring 3 stable fix on support column 2, then pass inside side lever 4 with the buret, when the buret passes side lever 4's circular port 5 certain distance often, then break handle 14 off with the fingers and thumb, make handle 14 rotate to the one side that is close to side lever 4, at this moment just can drive eccentric wheel 11 and rotate under the effect of pivot 12 and bearing frame 13, along with eccentric wheel 11's rotation, at this moment will make carrying out extrusion movable plate 10 of eccentric wheel 11, then just can drive grip block 7 under the effect of shift lever 8 and stretch out and accomodate groove 6, just so can reach the centre gripping to the buret under the effect of grip block 7, so that the buret is used.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A novel burette clamp comprises a base plate (1), and is characterized in that: bottom plate (1) upper end fixedly connected with support column (2), support column (2) periphery sliding connection has shift ring (3), shift ring (3) periphery fixedly connected with side lever (4), side lever (4) front end fixedly connected with bearing frame (13), bearing frame (13) internal rotation is connected with pivot (12), pivot (12) periphery fixedly connected with eccentric wheel (11), eccentric wheel (11) periphery fixedly connected with handle (14), sliding connection has shift bar (8) in side lever (4), shift bar (8) one end fixedly connected with movable plate (10), movable plate (10) closely laminates with eccentric wheel (11), shift bar (8) other end fixedly connected with grip block (7).

2. A novel burette clamp as claimed in claim 1, wherein: the shift ring (3) female connection has fixing bolt (15), the one end that shift ring (3) were kept away from in fixing bolt (15) is provided with anti-skidding handle, fixing bolt (15) run through shift ring (3).

3. A novel burette clamp as claimed in claim 1, wherein: and an anti-skid rubber pad is laid at the lower end of the bottom plate (1).

4. The novel burette clamp of claim 1, wherein: circular port (5) have been seted up to side lever (4) up end, circular port (5) inner wall has been seted up and has been accomodate groove (6), it has grip block (7) to accomodate groove (6) sliding connection.

5. A novel burette clamp as claimed in claim 1, wherein: the clamping plate (7) is arc-shaped, and a rubber layer is arranged on one surface, away from the moving rod (8), of the clamping plate (7).

6. The novel burette clamp of claim 1, wherein: the movable plate (10) is fixedly connected with a spring (9), the spring (9) is fixedly connected with the side rod (4), and the movable rod (8) is located in the middle of the spring (9).