CN114471766B - Pipetting metering device for medical examination - Google Patents

Abstract

The invention discloses a pipetting metering device for medical examination, and belongs to the technical field of medical instruments. The utility model provides a pipetting metering device that medical science inspection was used, includes the body, and the outside cover of body is equipped with movable block, and movable block one side upper end runs through and is equipped with guide arm A, and guide arm A outer wall has been seted up thread groove A, and movable block one side upper end runs through and is equipped with the scale pole, and a plurality of draw-in grooves have been seted up to scale pole one end, and guide block one end is equipped with the expansion ring, and the expansion ring downside is equipped with the closing plate, and the closing plate upper end is equipped with two guide arms B, and two guide arm B upper ends are equipped with extrusion ring, and guide arm B outer wall cover is equipped with spring A. The movable block can facilitate the pipette to be placed on the upper side of the movable block so as to keep the tube stable, and can move in cooperation with the scale rod so as to control the depth of the lower end of the tube body immersed into the liquid level, so that the movable block is convenient for a user to grasp, and under the action of the movable block, a worker is not required to manually lift the tube body for a long time after the liquid is discharged, and the operation is simple and convenient.

Description

A pipetting metering device for medical examination

technical field

The invention relates to the technical field of medical instruments, and more specifically, relates to a pipetting measuring device for medical testing.

Background technique

In order to ensure the quality of clinical testing, the quality control of the whole process must be achieved. Pipettes are often used to pipette a small amount or trace of liquid in the laboratory. During the inspection process, pipettes are often used for some experiments that require reagents or solutions. , and in the pipetting process, most of the pipettes are used for pipetting operations. The patent document with the publication number CN214390223U in the prior art provides a pipetting metering device for medical inspection. 1. The pull rod can extract the solution, and the solution can be measured by the scale value. Although the device has many beneficial effects, the following problems still exist: the staff needs to insert the lower end of the pipette under the liquid surface according to the requirements when extracting the solution. It is difficult for users to grasp the length of the lower end of the pipette below the liquid surface when using it, and it is difficult to ensure that the pipette is always vertical and stable without shaking during operation .

In view of this, we propose a pipette metering device for medical testing.

Contents of the invention

1. Technical problems to be solved

The object of the present invention is to provide a pipetting and metering device for medical testing to solve the problems raised in the above-mentioned background technology.

2. Technical solution

A pipetting and metering device for medical examination, comprising a tube body, a movable block is set outside the tube body, a guide rod A is penetrated through the upper end of one side of the movable block, and a thread groove is opened on the outer wall of the guide rod A A, the upper end of the other side of the movable block is provided with a scale rod, and one end of the scale rod is provided with a plurality of slots;

The side of the movable block close to the scale rod is provided with an elastic block, and the inner wall of the upper side of the pipe body is provided with a guide groove, and a screw rod is rotatably arranged inside the guide groove, and the screw rod is covered with A guide block is provided, one end of the guide block is provided with a movable ring, the lower side of the movable ring is provided with a sealing plate, the upper end of the sealing plate is fixedly connected with a plurality of guide rods B, and the upper end of the guide rod B is connected with the same Extruding the ring, the outer wall of the guide rod B is covered with a spring A.

Preferably, the lower outer wall of the guide rod A is provided with a gear, the lower outer wall of the guide rod A is covered with a movable sleeve, the lower outer wall of the guide rod A is provided with a thread groove B, and the two ends of the outer wall of the movable sleeve Limiting slots are all provided, and an insert is provided on one side of the lower end of the movable sleeve.

Preferably, the lower end of the scale rod is provided with a fixed plate, and the middle part of the lower end of the fixed plate is provided with a ring groove, and a ring block is provided inside the ring groove, and a plurality of meshing teeth are provided on the outer wall of the ring block, and the ring block The lower end has a symmetrical structure and is provided with two mounting plates, and one end of the mounting plates is provided with a sponge block.

Preferably, the lower end of the fixed plate is symmetrically provided with two slide grooves, a slide block is provided inside the slide groove, a spring B is provided at one end of the slide block, a connecting rod is provided at the lower end of the slide block, and the two A collection box is provided in the middle of the connecting rod, a slot is provided on one side of the upper end of the collection box, a fixing frame is provided on the outside of the fixing plate, and two limit strips are provided on one side of the lower end of the fixing plate.

Preferably, the elastic clamping block is in sliding contact with the movable block, the elastic clamping block is engaged with the slot, and the inner wall on one side of the movable block is in sliding contact with the inner wall of the thread groove A.

Preferably, the guide block is slidingly connected to the guide groove, the screw rod is threadedly connected to the guide block, the upper end of the sealing plate is in pressing contact with the lower end of the movable ring, and the guide rod B is in sliding contact with the movable ring.

Preferably, the gear is engaged and driven by the ring block through the meshing teeth, the inner wall of the movable sleeve is in sliding contact with the inner wall of the threaded groove B, and the inserting block is mated with the slot.

Preferably, the ring block is slidably connected to the ring groove, and the sponge block is in frictional contact with the lower outer wall of the pipe body.

Preferably, the slider is slidably connected to the chute, one end of the spring B is fixedly connected to one end of the inner wall of the chute, and the collection box is located on the lower side of the pipe body.

Preferably, the fixing bracket penetrates the fixing plate and is in sliding contact with it, and the limiting bar is in sliding contact with the limiting groove.

3. Beneficial effect

Compared with the prior art, the present invention has the advantages of:

(1) The present invention can facilitate placing the pipette on its upper side to keep the pipe body stable through the movable block, and can cooperate with the movement of the scale rod to control the depth of the lower end of the pipe body submerged into the liquid surface, which is convenient for users to grasp, and Under the action of the movable block, after the liquid is discharged, the staff does not need to manually lift the tube body for 15 seconds, and the operation is simple and convenient.

(2) The present invention can easily adjust the position of the movable ring through the set screw and guide block, and then can control the liquid level inside the tube body, and the spring A can be used when the ear washing ball is taken away from the tube body The sealing plate is automatically driven to seal the middle part of the movable ring, avoiding the need for the staff to manually block the upper end of the pipe body, and the operation is simple and convenient.

(3) The collection box provided in the present invention can prevent the solution inside the tube body from dripping onto the workbench when the tube body is moving, thereby affecting the environment, and under the action of the spring B, it can automatically move when the movable block rises to the uppermost end To the lower side of the pipe body, it is convenient for the staff to use.

(4) The sponge block provided in the present invention can rotate through gears, meshing teeth, and ring blocks when the tube body rises, thereby cleaning the outer wall of the tube and absorbing excess solution, thereby ensuring that the outer wall of the tube is clean.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the structure of the card slot part of the present invention;

Fig. 3 is a partial structural schematic diagram of the sealing plate of the present invention;

Fig. 4 is the partial structural representation of chute of the present invention;

Fig. 5 is a schematic diagram of the partial structure of the ring groove of the present invention;

Fig. 6 is the partial structural representation of sponge block of the present invention;

Explanation of symbols in the figure: 1. Pipe body; 2. Movable block; 3. Guide rod A; 4. Thread groove A; 5. Scale rod; 6. Card slot; 7. Elastic block; Guide block; 10, movable ring; 11, sealing plate; 12, guide rod B; 13, extrusion ring; 14, spring A; 15, gear; 16, movable sleeve; 17, thread groove B; 18, limit groove ;19, insert block; 20, fixed plate; 21, ring groove; 22, ring block; 23, meshing teeth; 24, installation plate; 25, sponge block; 26, chute; 27, slide block; 28, spring B ; 29, connecting rod; 30, collection box; 31, slot; 32, fixed frame; 33, limit bar; 34, screw mandrel.

Detailed ways

Please refer to Fig. 1-6, the present invention provides a kind of technical scheme:

A pipetting and metering device for medical examination, comprising a tube body 1, a movable block 2 is sheathed on the outside of the tube body 1, a guide rod A3 runs through the left upper end of the movable block 2, and a thread groove A4 is provided on the outer wall of the guide rod A3, The upper end of the right side of the movable block 2 is provided with a scale rod 5, the right end of the scale rod 5 is provided with a plurality of draw-in slots 6, the right end of the movable block 2 is provided with an elastic clamp block 7, and the inner wall of the upper side of the pipe body 1 is provided with a guide groove 8. The inside of the groove 8 is provided with a guide block 9, one end of the guide block 9 is provided with a movable ring 10, the lower side of the movable ring 10 is provided with a sealing plate 11, the upper end of the sealing plate 11 is provided with two guide rods B12, and the upper ends of the two guide rods B12 are provided with The extrusion ring 13, the outer wall of the guide rod B12 is provided with a spring A14, and the upper end of the pipe body 1 is provided with a threaded rod 34.

Specifically, the outer wall of the lower side of the guide rod A3 is provided with a gear 15, the outer wall of the lower side of the guide rod A3 is covered with a movable sleeve 16, the outer wall of the lower side of the guide rod A3 is provided with a thread groove B17, and both ends of the outer wall of the movable sleeve 16 are provided with limiting grooves. 18. An insert block 19 is provided on one side of the lower end of the movable sleeve 16 .

Further, the lower end of the scale rod 5 is provided with a fixed plate 20, and the middle part of the lower end of the fixed plate 20 is provided with a ring groove 21, and the inner part of the ring groove 21 is provided with a ring block 22, and the outer wall of the ring block 22 is provided with a plurality of meshing teeth 23, and the lower end of the ring block 22 Two installation plates 24 are arranged in a symmetrical structure, and a sponge block 25 is arranged at one end of the installation plates 24 .

Furthermore, the lower end of the fixed plate 20 is symmetrically provided with two chute 26, the inside of the chute 26 is provided with a slider 27, one end of the slider 27 is provided with a spring B28, and the lower end of the slider 27 is provided with a connecting rod 29, the two connecting The middle part of the rod 29 is provided with a collecting box 30 , the upper side of the collecting box 30 is provided with a slot 31 , the outside of the fixed plate 20 is provided with a fixing bracket 32 , and the lower end of the fixed plate 20 is provided with two limit strips 33 .

The provided spring B28 can automatically move the sliding block 27 after the inserting block 19 is disengaged from the slot 31 , so that the collection box 30 is located at the lower side of the tube body 1 .

Furthermore, the elastic clamping block 7 is in sliding contact with the movable block 2 , the elastic clamping block 7 is engaged with the slot 6 , and the inner wall of one side of the movable block 2 is in sliding contact with the inner wall of the thread groove A4 .

The movable block 2 can be easily fixed by the cooperation of the provided elastic clamping block 7 and the clamping groove 6 .

It is worth noting that the guide block 9 is slidingly connected with the guide groove 8, the screw rod 34 is screwed with the guide block 9, the upper end of the sealing plate 11 is in extrusion contact with the lower end of the movable ring 10, and the guide rod B12 is in sliding contact with the movable ring 10.

The provided guide block 9 and guide groove 8 can facilitate the adjustment of the position of the movable ring 10, thereby controlling the amount of solution in the pipette.

It is worth noting that the gear 15 is engaged with the ring block 22 for transmission through the meshing teeth 23 , the inner wall of the movable sleeve 16 is in sliding contact with the inner wall of the thread groove B17 , and the plug block 19 is mated with the slot 31 .

The ring block 22 can be rotated when the guide rod A3 is rotated by cooperating the provided gear 15 with the meshing teeth 23 .

In addition, the ring block 22 is in sliding connection with the ring groove 21 , and the sponge block 25 is in frictional contact with the lower outer wall of the pipe body 1 .

The provided ring block 22 can make the mounting plate 24 and the sponge block 25 rotate when rotating, and then absorb the solution on the outer wall of the tube body 1 .

In addition, the slider 27 is slidably connected to the chute 26 , one end of the spring B28 is fixedly connected to one end of the inner wall of the chute 26 , and the collection box 30 is located on the lower side of the tube body 1 .

The set collection box 30 can prevent the internal solution of the pipette from dripping onto the workbench when the pipette is moving, causing the workbench to be polluted.

In addition, the fixing bracket 32 penetrates the fixing plate 20 and is in sliding contact with it, and the limiting bar 33 is in sliding contact with the limiting groove 18 .

The provided fixing frame 32 can facilitate the movement of the fixing plate 20, and the pipette can maintain a vertical state during the moving process.

When the device is required to work, select the tube body 1 of the required specification to make its lower side pass through the movable block 2 and the fixed plate 20 so that the lower end of the tube body 1 is located on the upper side of the collection box 30, and then put the solution bottle of the solution to be taken Put it on the lower side of the collection box 30, put the solution bottle to be collected on the side of the solution bottle of the solution to be taken, then push the connecting rod 29 so that the collection box 30 is removed from the lower side of the tube body 1, and then pull the elastic block 7 so that The elastic block 7 is separated from the draw-in groove 6, and the elastic block 7 is pulled downward to make the movable block 2 descend. After the movable block 2 descends, it can drive the pipe body 1 to descend. After the pipe body 1 descends, it can be immersed in the liquid surface, and the staff can By observing the positional relationship between the movable block 2 and the scale rod 5 when the lower end of the pipe body 1 is flush with the liquid surface, the depth of the lower end of the pipe body 1 submerged in the liquid surface is adjusted in cooperation with the scale rod 5 so that it is within the specified range,

Afterwards, pass the lower side of the ear washing ball through the extrusion ring 13 and squeeze the extrusion ring 13 so that the extrusion ring 13 drives the guide rod B12 and the sealing plate 11 to descend. The earball cooperates with the pipette to absorb the solution, and when the solution reaches a certain height, the earwashing ball is taken away. At this time, under the action of the spring A14, the guide rod can drive the sealing plate 11 to rise, thereby sealing the movable ring 10.

Afterwards, the staff rotates the screw rod 34 by observing the position of the upper scale line of the pipette so that the guide block 9 descends along the direction of the guide groove 8. After the guide block 9 descends, it can drive the movable ring 10 to descend and then squeeze the air inside the pipette so that The liquid level in the pipette drops, wherein when the movable block 2 descends, the guide rod A3 can be driven to rotate through the thread groove A4, and the movable sleeve 16 can be driven when the guide rod A3 rotates, and the movable sleeve 16 can carry Insert block 19 descends, and then makes limit block insert in the slot 31 and makes collection box 30 fix,

After the solution is absorbed, the elastic block 7 is pulled and the movable block 2 rises. After the movable block 2 rises, it can drive the pipe body 1 to rise and make the guide rod A3 reversely rotate. When the guide rod A3 rotates, it can drive the gear 15 to rotate. 15 rotations can make the ring block 22 rotate through the meshing teeth 23, and the rotation of the ring block 22 can drive the two mounting plates 24 to rotate. The solution of the outer wall is sucked off to keep the outer wall clean, wherein when the movable block 2 is positioned at the uppermost side, the guide rod A3 rotates so that the movable sleeve 16 is positioned at the uppermost side. At this time, the insert block 19 breaks away from the slot 31, and the spring B28 Under the action, the slider 27 can move along the direction of the chute 26, so that the collection box 30 is located on the lower side of the tube body 1, and then the fixing plate 20 is pushed, so that the fixing plate 20 slides on the fixing frame 32 to the upper side of the solution bottle to be collected , then adjust the position of the solution bottle to be collected and press the extrusion block to make the solution in the pipette flow out.

Claims (8)

1. A pipetting and metering device for medical examination, comprising a tube body, characterized in that: the outside of the tube body is provided with a movable block, and the upper end of one side of the movable block is penetrated with a guide rod A, and the guide rod A The outer wall of A is provided with a threaded groove A, and the upper end of the other side of the movable block is provided with a scale rod, and one end of the scale rod is provided with a plurality of slots; The side of the movable block close to the scale rod is provided with an elastic block, and the inner wall of the upper side of the pipe body is provided with a guide groove, and a screw rod is rotatably arranged inside the guide groove, and the screw rod is covered with A guide block is provided, one end of the guide block is provided with a movable ring, the lower side of the movable ring is provided with a sealing plate, the upper end of the sealing plate is fixedly connected with a plurality of guide rods B, and the upper end of the guide rod B is connected with the same Squeeze the ring, the outer wall of the guide rod B is covered with a spring A; The lower end of the scale rod is provided with a fixed plate, and the middle part of the lower end of the fixed plate is provided with a ring groove, and a ring block is arranged inside the ring groove, and a plurality of meshing teeth are provided on the outer wall of the ring block, and the lower end of the ring block is symmetrical. The structure is provided with two mounting plates, and one end of the mounting plate is provided with a sponge block; The lower end of the fixed plate is symmetrically provided with two chutes, the inside of the chute is provided with a slider, one end of the slider is provided with a spring B, and the lower end of the slider is provided with a connecting rod, and the two connecting rods A collection box is provided in the middle, and a slot is provided on the upper side of the collection box, a fixing frame is provided on the outside of the fixing plate, and two limit strips are provided on the lower side of the fixing plate. 2. The pipetting and metering device for medical examination according to claim 1, characterized in that: the lower outer wall of the guide rod A is provided with gears, the lower outer wall of the guide rod A is covered with a movable sleeve, and the outer wall of the lower side of the guide rod A is provided with a movable sleeve. The outer wall of the lower side of the guide rod A is provided with a threaded groove B, both ends of the outer wall of the movable sleeve are provided with limiting grooves, and an insert is provided on one side of the lower end of the movable sleeve. 3. The pipetting and measuring device for medical examination according to claim 1, characterized in that: the elastic clamping block is in sliding contact with the movable block, the elastic clamping block is engaged with the draw-in slot, and the movable block one The side inner wall is in sliding contact with the inner wall of the thread groove A. 4. The pipetting and measuring device for medical testing according to claim 1, characterized in that: the guide block is slidably connected to the guide groove, the screw rod is threadedly connected to the guide block, and the upper end of the sealing plate is connected to the movable ring The lower end is pressed into contact, and the guide rod B is in sliding contact with the movable ring. 5. The pipetting and measuring device for medical examination according to claim 2, characterized in that: the gear is engaged with the ring block through meshing teeth, the inner wall of the movable sleeve is in sliding contact with the inner wall of the thread groove B, and the inserting Blocks mate with sockets. 6 . The pipetting and measuring device for medical testing according to claim 3 , wherein the ring block is in sliding connection with the ring groove, and the sponge block is in frictional contact with the lower outer wall of the tube body. 6 . 7. The pipetting and measuring device for medical testing according to claim 1, characterized in that: the slider is slidably connected to the chute, one end of the spring B is fixedly connected to one end of the inner wall of the chute, and the collection box is located at the underside of the tube. 8 . The pipetting and measuring device for medical testing according to claim 1 , wherein the fixing frame penetrates the fixing plate and is in sliding contact with it, and the limiting bar is in sliding contact with the limiting groove.

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