CN214346548U

CN214346548U - Liquid-transfering gun convenient to demolish rifle head

Info

Publication number: CN214346548U
Application number: CN202022909337.8U
Authority: CN
Inventors: 覃柳群; 蔡鹏飞; 王秋华; 崖娇练; 许泽辉; 钟青燕; 罗世强; 王敬仁; 谢园园; 张玲; 刘晓丽
Original assignee: Liuzhou Maternity and Child Healthcare Hospital
Current assignee: Liuzhou Maternity and Child Healthcare Hospital
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-10-08
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a liquid-transfering gun convenient for dismantling a gun head, which belongs to the technical field of liquid-transfering guns and comprises a gun rod, a handle sleeved outside the gun rod and a gun head dismantling device; the gun head dismounting device comprises a push rod, a push block, a first spring and a pressing piece; the push rod is telescopically arranged in the handle, the front end of the push rod is fixedly connected with the push block, the push block is positioned on one side of the rear end of the first connecting head, and the rear end of the push rod is provided with an inclined plane slide block; the first spring is sleeved on the push rod, and an extrusion block is arranged on the push rod; the pressing piece is arranged at the rear end of the handle and comprises a pressing rod, a pressing head and a second spring; the pressing rod moves up and down to drive the inclined plane sliding block to move back and forth; the other end of the pressing rod is positioned outside the handle and is connected with the pressing head, and the second spring is sleeved on the pressing rod and is positioned between the pressing head and the handle; the utility model provides an inconvenient problem of dismantling the rifle head of current liquid-transfering gun.

Description

Liquid-transfering gun convenient to demolish rifle head

Technical Field

The utility model relates to a liquid-transfering gun technical field, in particular to liquid-transfering gun convenient to demolish rifle head.

Background

The liquid-transferring gun is a common tool in a laboratory and is used for transferring a small amount of liquid in a container; at present, a common pipette in a laboratory comprises a gun rod, wherein a first connector for connecting the gun head is arranged at the front end of the gun rod, and a second connector for connecting a negative pressure tube is arranged at the rear end of the gun rod; when the device is used, the gun head is installed at the front end of the gun rod, the negative pressure tube is connected at the rear end of the gun rod, an operator holds the gun rod by hand to perform liquid transfer operation, and the gun head needs to be replaced once the liquid transfer operation is completed; when the existing liquid-transfering gun is used, an operator needs to use the other hand to remove the gun head, so that the operation is very inconvenient, the workload of the operator is increased, and the working efficiency of the operator is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a pipette with easy-to-remove tip, which is used to solve the problem that the removal of the tip is inconvenient for the prior pipette.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a liquid-transfering gun convenient for dismantling a gun head comprises a gun rod, a handle sleeved on the outer side of the gun rod and a gun head dismantling device; the front end of the gun rod is provided with a first connector for connecting the gun head, and the rear end of the gun rod is provided with a second connector for connecting the negative pressure pipe;

the gun head dismounting device comprises a push rod, a push block, a first spring and a pressing piece; the push rod is telescopically arranged in the handle and is arranged in parallel with the handle; the front end of the push rod movably penetrates through the end face of the handle and is fixedly connected with the push block, the push block is positioned on one side of the rear end of the first connecting head, and the rear end of the push rod is provided with an inclined slide block; the first spring is sleeved on the push rod, an extrusion block is arranged on the push rod, the front end of the first spring is connected with the inner wall of the front end of the handle, and the rear end of the first spring is connected with the extrusion block; the pressing piece is arranged at the rear end of the handle and comprises a pressing rod, a pressing head and a second spring; the pressing rod is telescopically arranged on the handle and is perpendicular to the handle; one end of the pressing rod is positioned in the handle and is movably connected with the inclined plane of the inclined plane sliding block, and the pressing rod moves up and down to drive the inclined plane sliding block to move back and forth; the other end of the pressing rod is positioned outside the handle and is connected with the pressing head, and the second spring is sleeved on the pressing rod and is positioned between the pressing head and the handle.

Preferably, the handle can be dismantled the cover and establish the outside of barral of a gun, the rear end of barral of a gun is provided with the restriction piece that is used for restricting the handle removal.

Preferably, the material of the handle is PVC.

Preferably, when the first spring is in a natural state, the push block is attached to the front end face of the handle.

Preferably, a supporting block is arranged in the handle, the supporting block is positioned on one side of the inclined plane sliding block, and the push rod movably penetrates through the supporting block.

Preferably, when the first spring is in a natural state, the distance between the inclined plane slider and the supporting block is 0.5-1.5 cm.

Preferably, the inclined plane sliding block is in the shape of a right triangle, and the push rod is fixedly connected with a right-angle side of the inclined plane sliding block.

Preferably, one end of the pressing rod, which is far away from the pressing head, is provided with an anti-drop block.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model is provided with the gun head detaching device, which is convenient for operators to detach the gun head, can effectively reduce the workload of the operators and improve the working efficiency of the operators; when the utility model is used, the gun head is arranged at the front end of the gun rod, the negative pressure tube is connected at the rear end, the operator holds the handle outside the gun rod for liquid transferring operation, and the thumb is put on the pressing piece; when the gun head needs to be detached, an operator presses down the pressing head of the pressing piece by using a thumb, the pressing rod drives the inclined plane sliding block to push forwards, and the push rod drives the pushing block to move forwards to push the gun head away from the first connecting head; therefore, the operator does not need to use the other hand to detach the gun head; when an operator loosens the thumb, the pressing piece and the push rod automatically reset, and the device is simple in structure, convenient and practical.

Drawings

Fig. 1 is a schematic view of an external structure of a pipette according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a pipette according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

fig. 5 is a schematic view illustrating a connection between a pipette and a tip according to an embodiment of the present invention;

the main reference symbols in the drawings are as follows:

in the figure, 1-gun rod, 2-first connecting head, 3-second connecting head, 4-limiting block, 5-handle, 6-push rod, 7-push block, 8-first spring, 9-extrusion block, 10-inclined plane slide block, 11-supporting block, 12-pressing rod, 13-pressing head, 14-second spring, 15-anti-drop block and 16-gun head.

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

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. The accompanying drawings are only for illustrative purposes and are only schematic drawings rather than actual drawings, which are not intended to limit the present disclosure, and in order to better illustrate the embodiments of the present disclosure, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Referring to fig. 1-5, a pipette with a detachable head comprises a lance 1, a handle 5 disposed on the outside of the lance 1, and a device for detaching the lance head. Wherein, the handle 5 can be dismantled the cover and establish the outside at barral of a gun 1, and the rear end of barral of a gun 1 is provided with the restriction piece 4 that is used for restricting handle 5 removal, and the material of handle 5 is PVC. Handle 5 can be dismantled with barral of a gun 1 and be connected, and operating personnel can be as required, with handle 5 and barral of a gun 1 separation, clean, disinfection respectively. The handle 5 and the gun head dismounting device on the handle 5 can carry out ultraviolet disinfection, and the gun rod 1 can carry out disinfection liquid disinfection. The front end of the gun rod 1 is provided with a first connector 2 used for connecting a gun head 16, the rear end of the gun rod is provided with a second connector 3 used for connecting a negative pressure pipe, and the first connector 2 and the second connector 3 are conventional.

The gun head dismounting device comprises a push rod 6, a push block 7, a first spring 8 and a pressing piece. The push rod 6 is telescopically mounted in the handle 5 and is arranged parallel to the handle 5. The front end of the push rod 6 movably penetrates through the end face of the handle 5 and is fixedly connected with the push block 7, and the push block 7 is located on one side of the rear end of the first connecting head 2 and used for pushing out the gun head 16 connected with the first connecting head 2. The rear end of the push rod 6 is provided with an inclined plane slide block 10, the inclined plane slide block 10 is in a right triangle shape, and the push rod 6 is fixedly connected with a right-angle edge of the inclined plane slide block 10. The first spring 8 is sleeved on the push rod 6, the extrusion block 9 is arranged on the push rod 6, the front end of the first spring 8 is connected with the inner wall of the front end of the handle 5, the rear end of the first spring is connected with the extrusion block 9, and the extrusion block 9 is used for compressing the first spring 8. Wherein, when the first spring 8 is in a natural state, the push block 7 is attached to the front end surface of the handle 5. A supporting block 11 is arranged in the handle 5, the supporting block 11 is located on one side of the inclined plane slider 10, the push rod 6 movably penetrates through the supporting block 11, and the supporting block 11 is used for providing supporting force for the push rod 6. When the first spring 8 is in a natural state, the distance between the inclined plane slide block 10 and the supporting block 11 is 0.5-1.5 cm; in this example, the distance is 1.0 cm.

The pressing piece is arranged at the rear end of the handle 5 and comprises a pressing rod 12, a pressing head 13 and a second spring 14. The pressing rod 12 is telescopically installed on the handle 5 and is disposed perpendicular to the handle 5. One end of the pressing rod 12 is positioned in the handle 5 and is movably connected with the inclined plane of the inclined plane slide block 10, and the pressing rod 12 moves up and down to drive the inclined plane slide block 10 to move back and forth. The other end of the pressing rod 12 is positioned outside the handle 5 and is connected with the pressing head 13, and the second spring 14 is sleeved on the pressing rod 12 and is positioned between the pressing head 13 and the handle 5. The end of the pressing rod 12 far away from the pressing head 13 is provided with a retaining block 15 for preventing the pressing rod 12 from separating from the handle 5.

The utility model is provided with the gun head dismounting device, which is convenient for operators to carry out the gun head 16 dismounting work, can effectively reduce the workload of the operators and improve the working efficiency of the operators; the utility model discloses during the use, 1 front end installation rifle head 16 of barral of a gun, the negative pressure pipe is connected to the rear end, and the handle 5 in the handheld barral of a gun 1 outside of operating personnel carries out the liquid-moving operation, and the thumb is put on the pressing part. When the gun head 16 needs to be removed, an operator presses down the pressing head 13 of the pressing piece by using a thumb, the pressing rod 12 drives the inclined plane slide block 10 to push forwards, the push rod 6 drives the push block 7 to move forwards, and the gun head 16 is pushed away from the first connecting head 2. Thus, the operator is not required to use the other hand to remove the lance tip 16; when an operator loosens the thumb, the pressing piece and the push rod 6 automatically reset, and the device is simple in structure, convenient and practical.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides a liquid-transfering gun convenient to demolish rifle head, includes the barral of a gun, the front end of barral of a gun is provided with the first connector that is used for connecting the rifle head, and the rear end is provided with the second that is used for connecting the negative pressure pipe and connects its characterized in that: the gun head disassembling device is sleeved on the gun rod;

2. A pipette gun for facilitating the removal of a lance tip as claimed in claim 1, in which: the handle can be dismantled the cover and establish the outside of barral of a gun, the rear end of barral of a gun is provided with the restriction piece that is used for restricting the handle removal.

3. A pipette gun for facilitating the removal of a lance tip as claimed in claim 2, in which: the handle is made of PVC.

4. A pipette gun for facilitating the removal of a lance tip as claimed in claim 1, in which: when the first spring is in a natural state, the push block is attached to the front end face of the handle.

5. A pipette gun for facilitating the removal of a lance tip as claimed in claim 1, in which: the handle is internally provided with a supporting block, the supporting block is positioned on one side of the inclined plane sliding block, and the push rod movably penetrates through the supporting block.

6. A pipette gun for facilitating the removal of a lance tip as claimed in claim 5, in which: when the first spring is in a natural state, the distance between the inclined plane slide block and the supporting block is 0.5-1.5 cm.

7. A pipette gun for facilitating the removal of a lance tip as claimed in claim 6, in which: the inclined plane slide block is in a right triangle shape, and the push rod is fixedly connected with a right-angle edge of the inclined plane slide block.

8. A pipette gun for facilitating the removal of a lance tip as claimed in claim 1, in which: the one end of keeping away from the press head according to the depression bar is provided with the anticreep piece.