CN211026386U - A hand-operated simple pipette tip loader - Google Patents

Abstract

The utility model discloses a hand-operated simple liquid-transfering gun head loader, which comprises a shell and a limiting component, wherein a gun head placing plate is arranged on the shell, a plurality of gun head clamping grooves are arranged on the gun head placing plate, the tail ends of the gun head clamping grooves are communicated with a positioning hole, and the positioning hole runs through the shell; the limiting part is provided with a cover plate and a baffle plate, and the cover plate covers the positioning hole to seal the positioning hole; by pressing the limiting part, the cover plate leaves the positioning hole, and meanwhile, the baffle plate cuts off the communication between the gun head clamping groove and the positioning hole. The utility model provides a bare-handed rifle head hole of advancing rifle head box is placed with the rifle head to present experimenter, the problem that wastes time and energy.

Description

A hand-operated simple pipette tip loader

technical field

The utility model relates to the field of biological experiments, in particular to a hand-operated simple pipette tip loader.

Background technique

Pipette tip assembly is a common practice in molecular biology, cell biology and other laboratories. In order to avoid the unavoidable carrying of bacteria on the hands, which increases the possibility of nucleic acid or protein contamination of the pipette tip, usually not freehand assembly is used, but the pipette tip box is used to assist the assembly. There are neatly arranged pipette tip holes on the pipette tip box. Each pipette tip hole can place a pipette tip and fix it in the hole, so that after uniform sterilization, the hand will no longer touch the pipette tip. Pipette tip assembly can be completed.

However, most of the purchased tips are in bulk, which requires the experimenter to manually place them into the tip hole of the tip box, which is time-consuming and labor-intensive. Therefore, there is a need for a device to assist the experimenter in filling the tip box.

Utility model content

The purpose of the utility model is to solve the problem of time-consuming and labor-intensive problem of the current experimenter placing the gun tip into the gun tip hole of the gun tip box with his bare hands.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A hand-cranked simple pipette tip loader, comprising a casing and a limiting part, the casing is provided with a tip placement plate, the The end of the head clip slot is connected with a positioning hole, and the positioning hole penetrates the casing; a cover plate and a baffle plate are arranged on the limiting member, and the cover plate covers the positioning hole, so that the positioning hole is closed; by pressing In the limiting member, the cover plate is separated from the positioning hole, and at the same time, the blocking piece cuts off the communication between the clamping groove of the gun head and the positioning hole.

Preferably, the gun head placement plate is cut off by a baffle to form the gun head slot, and the baffle is hidden in the baffle; by pressing the limiting member, the cover plate leaves the positioning hole At the same time, the baffle plate emerges from the partition plate, cutting off the communication between the gun head slot and the positioning hole.

Preferably, a pressing block is provided at one end of the limiting member away from the cover plate, and the positioning hole penetrates the pressing block; the pressing block is connected with the housing through a reset piece, and under the action of the reset piece, The cover plate closely covers the positioning hole, and the baffle is flush with the partition plate.

Preferably, the reset member is a spring, and both ends of the spring are tightly pressed against the inner wall of the housing and the pressing block, respectively.

The limit parts are reset by the reset parts, so that the next row can be loaded conveniently after one row of gun tip holes in the gun tip box is installed. The reset member is preferably a spring, and other components with reset function can also be substituted.

Preferably, the gun-tip placement plate is arranged obliquely, and the positioning hole is arranged at an end of the gun-tip placement plate where the horizontal position is low.

The pipette tip placement plate can have a horizontal or inclined design. When the pipette tip placement plate is horizontally designed, the pipette tip loader needs to be tilted manually each time it is used, so that the pipette tip placement plate moves towards the positioning hole; When the plate is tilted, the gun head on the plate has a tendency to automatically move closer to the positioning hole.

Preferably, the tip is a pipette tip.

Implementing the present utility model has the following beneficial effects:

Through the ingenious design of the positioning holes and the limiting components, the utility model can fill the gun tips into the gun tip holes of the gun tip box in rows, which eliminates the laboriousness of the experimenters for manual placement one by one, is accurate and efficient, and saves time.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the use state diagram of the utility model;

FIG. 3 is a structural diagram of a limiting component of the present invention;

Figure 4 is a schematic diagram of the gun tip;

Figure 5 is a schematic diagram of the tip box;

Among them, 1- shell, 101- gun head placement plate, 102- gun head slot, 103- positioning hole, 104- partition plate; 2- limit part, 201- cover plate, 202- stop plate, 203- press Block, 204-Reset connection.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clear, the present utility model will be further described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 , 2 and 3 , the utility model is a hand-cranked simple pipette tip loader, which includes a housing 1 and a limiting part 2 . The shell 1 is provided with a tip placement plate 101 . The tip placement plate 101 is separated by a partition 101 to form a plurality of gun tip clamping slots 102 . The gun-tip placing plate 101 is arranged obliquely, and the positioning hole 103 is arranged at the lower end of the gun-tip placing plate 101 in the horizontal position. A cover plate 201 and a blocking piece 202 are arranged on the limiting member 2 , a pressing block 203 is arranged at one end away from the cover plate 201 , and the positioning hole 103 penetrates through the pressing block 203 . The pressing block 203 is connected to the housing 1 through a reset member 204 , which is preferably a spring, and the two ends are pressed against the housing 1 and the inner wall of the pressing block 203 respectively.

The pipette tip is shown in Figure 4, showing a tapered structure that is wide at the top and narrow at the bottom. As shown in Figure 5, the pipette tip box has neatly arranged pipette tip holes. Each pipette tip hole can be placed in a pipette tip and fixed in the hole, which is convenient for uniform sterilization and disinfection, as well as pipette tips. assembly. The positioning hole 103 of the present invention is matched with the gun tip hole on the gun tip box. When in use, place a large number of pipette tips on the tip placement plate 101 , and shake gently to make the tips fall into the tip slot 102 . At this time, due to the presence of the reset member 204 , the cover plate 201 tightly covers the positioning hole 103 , so that the positioning hole 103 is closed; The gun tip can move freely along the gun tip retaining slot 102 , but cannot enter the positioning hole 103 . By pressing the pressing block 203 on the limiting member 2, the cover plate 201 leaves the positioning hole 103, so that the gun tips in the front row can enter the positioning hole 103; at the same time, the baffle 202 emerges from the partition plate 104, cutting off the gun tips The connection between the card slot 102 and the positioning hole 103 prevents the rear gun tips from sliding into the positioning hole 103 . In this way, the gun tips of the foremost row fall into the tip holes of the lower tip box through the positioning holes 103 running through the entire tip loader, and fill up one row of tip holes at one time. Because of the blocking by the baffle 202, the other gun tips still stay on the gun tip placement plate 101 stably at this time, leaving sufficient processing time for the user. After filling a row of holes in the gun head, release the pressing block 203, under the action of the reset element 204, the cover plate 201 tightly covers the positioning hole 103 again, and the baffle 202 is hidden in the partition plate 104 again. At this time, you can move to the next row of pipette tip holes and repeat the operation.

What is disclosed above is only a preferred embodiment of the present invention, of course, it cannot limit the scope of the rights of the present invention. Therefore, the equivalent changes made according to the claims of the present invention are still covered by the present invention. scope.

Claims (6)

1. a hand-operated simple pipette tip loader, is characterized in that, comprises a housing and a limiting part, the housing is provided with a tip placement plate, and the gun tip placement plate is provided with a plurality of gun tips a clamping slot, the end of the clamping slot of the gun head is connected with a positioning hole, and the positioning hole penetrates the casing; a cover plate and a stop plate are arranged on the limiting part, and the cover plate covers the positioning hole, so that the The positioning hole is closed; by pressing the limiting member, the cover plate leaves the positioning hole, and at the same time, the blocking piece cuts off the communication between the gun head slot and the positioning hole. 2. The hand-operated simple pipette tip loader according to claim 1, wherein the tip placement plate is cut off by a partition to form the tip slot, and the baffle is hidden in the partition. By pressing the limiting member, the cover plate leaves the positioning hole, and at the same time, the baffle plate emerges from the partition plate, cutting off the communication between the gun head slot and the positioning hole. 3 . The hand-operated simple pipette tip loader according to claim 2 , wherein a pressing block is provided at one end of the limiting member away from the cover plate, and the positioning hole penetrates the pressing block; the pressing The block and the housing are connected by a reset piece, under the action of the reset piece, the cover plate tightly covers the positioning hole, and the baffle is flush with the partition plate. 4 . The hand-operated simple pipette tip loader according to claim 3 , wherein the reset member is a spring, and the two ends of the spring are respectively pressed against the inner wall of the housing and the pressing block. 5 . superior. 5 . The hand-operated simple pipette tip loader according to claim 1 , wherein the tip placement plate is inclined and the positioning hole is arranged at the lower end of the tip placement plate in a horizontal position. 6 . 6 . The hand-operated simple pipette tip loader according to claim 1 , wherein the tip is a pipette tip. 7 .

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