CN215277402U - Installation device of pipettor rifle head - Google Patents
Installation device of pipettor rifle head Download PDFInfo
- Publication number
- CN215277402U CN215277402U CN202121061160.9U CN202121061160U CN215277402U CN 215277402 U CN215277402 U CN 215277402U CN 202121061160 U CN202121061160 U CN 202121061160U CN 215277402 U CN215277402 U CN 215277402U
- Authority
- CN
- China
- Prior art keywords
- head
- wall
- mounting head
- mounting
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides an installation device of pipettor rifle head, including rifle head body and the installation head and the imbibition head of connecting rifle head body both ends, the tip both sides of installation head are provided with an axial extension's locating lever respectively relatively, the pipettor body with the butt joint mouth of installation head be provided with the axial spout that the locating lever corresponds, the inner wall of installation head is provided with the elastic rubber layer, the relative both sides of the inner wall of installation head are provided with the fastener respectively, the outer wall of the pipettor body is provided with the cooperation the card hole of fastener, the fastener includes the casing and the reset spring of cylindricality, the inner wall of installation head is in the position of fastener is equipped with the opening, and the outer wall of installation head is in the opening part is provided with convex dog, be provided with the intercommunication in the dog the open-ended cavity. The use is very convenient, the sealing effect is improved, and the gun head is convenient and labor-saving to assemble and disassemble.
Description
Technical Field
The utility model relates to a medical science inspection technical field particularly, relates to an installation device of pipettor rifle head.
Background
The pipette is one kind of pipette and is used mainly in transferring small amount of liquid and trace amount of liquid in laboratory environment. The liquid-transfering gun head has the not reasonable problem inadequately with the cooperation closely spent of pipettor, current liquid-transfering gun rifle head is whole to be made by a hard material, all cup joint the mouth of pipe outside at the barrel during use, it is not good to seal the effect, leak gas easily, for realizing better sealed effect, it is generally more inseparable that the block dynamics between reinforcing rifle head and the barrel makes to combine between rifle head and the barrel, but just so need use great power just can load the rifle head and withdraw from the rifle head, because the rifle head needs frequent change, it is just harder to operate like this, it is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides an installation device of pipettor rifle head, it is very convenient to use, has improved sealed effect, the rifle head is installed and removed conveniently laborsavingly.
In order to achieve the above object, the utility model adopts the following technical scheme:
a mounting device of a pipette tip comprises a tip body, a mounting head and a liquid suction head, wherein the mounting head and the liquid suction head are connected with two ends of the tip body, two sides of the end part of the mounting head are respectively and oppositely provided with an axially extending positioning rod, an axial sliding groove corresponding to the positioning rod is formed in an interface of a pipette body and the mounting head, the inner wall of the mounting head is provided with an elastic rubber layer, two opposite sides of the inner wall of the mounting head are respectively provided with a clamping piece, the outer wall of the pipette body is provided with a clamping hole matched with the clamping piece, the clamping piece comprises a cylindrical shell and a return spring, an opening is formed in the position of the clamping piece on the inner wall of the mounting head, a convex stop block is arranged at the opening on the outer wall of the mounting head, a cavity communicated with the opening is formed in the stop block, one end of the shell is an arc surface, and an annular extending edge is formed in the opening at the other end of the shell, the extension edge is clamped at the opening of the inner wall of the mounting head, and the arc surface faces the inside of the mounting head; one end of the reset spring is connected with the cavity, and the other end of the reset spring is connected with the inside of the shell.
The utility model discloses two distance between the locating lever is less than the internal diameter of installation head.
The end face of the baffle block away from the liquid suction head is an arc-shaped face.
The inside wall in card hole be with the arc surface complex inclined plane of casing.
The utility model discloses after the rifle head is installed, reset spring releases, the arc surface of casing just is located the card is downthehole, and the casing part outside the arc surface does not get into the card hole.
The invention has the beneficial effects that:
1. inserting the pipette body into the mounting head along the sliding groove, wherein in the pushing process, the shell in the mounting head is extruded and shrinks towards the cavity in the blocking block, the reset spring is compressed, when the shell moves to the clamping hole, the reset spring is released, the shell enters the clamping hole, and the mounting is finished; the elastic rubber layer is arranged on the inner wall of the mounting head, so that the mounting is more compact and stable, and displacement cannot occur.
2. When the pipette is disassembled, two fingers are respectively lapped on the two stop blocks to reversely push the pipette head away from the pipette body, and the installation and the disassembly of the pipette head are very convenient.
3. One end of the clamping piece shell is arranged to be an arc surface, so that the shell can be more smoothly extruded in the moving process; the inner side wall of the clamping hole is an inclined surface matched with the arc surface of the shell, so that the pipette head can be conveniently and smoothly pushed away from the pipette body in a reverse direction. The installation and the disassembly are very convenient and labor-saving.
Drawings
Fig. 1 is a sectional view of a mounting device for a pipette tip of the present invention;
fig. 2 is a sectional view of the pipette after the mounting of the body and the tip is completed;
FIG. 3 is a side sectional view of FIG. 2;
FIG. 4 is a partial schematic view of FIG. 3;
fig. 5 is a partial schematic view of the gun body and the gun head of example 3 after the installation is completed.
Reference numerals: 1. the gun head comprises a gun head body, 2, a mounting head, 3, a liquid suction head, 4, a gun body, 5, a positioning rod, 6, a stop block, 7, a clamping piece, 21, an elastic rubber layer, 41, a sliding groove, 42, a clamping hole, 71, a shell, 72, a return spring, 711 and an outer extension edge.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, a mounting device for a pipette tip comprises a tip body 1, a mounting head 2 and a liquid suction head 3 connected to two ends of the tip body 1, wherein two sides of an end portion of the mounting head 2 are respectively and oppositely provided with an axially extending positioning rod 5, an interface between a pipette body 4 and the mounting head 2 is provided with an axial sliding slot 41 corresponding to the positioning rod 5, an inner wall of the mounting head 2 is provided with an elastic rubber layer 21, two opposite sides of an inner wall of the mounting head 2 are respectively provided with a clamping piece 7, an outer wall of the pipette body 4 is provided with a clamping hole 42 matched with the clamping piece 7, the clamping piece 7 comprises a cylindrical shell 71 and a return spring 72, an opening is formed in the inner wall of the mounting head 2 at the position of the clamping piece 7, a convex stop 6 is arranged at the opening on the outer wall of the mounting head 2, and a cavity communicated with the opening is arranged in the stop 6, one end of the shell 71 is an arc surface, an opening at the other end of the shell 71 is provided with an annular extending edge 711, the extending edge 711 is clamped at the opening on the inner wall of the mounting head 2, and the arc surface faces the inside of the mounting head 2; one end of the return spring 72 is connected to the chamber, and the other end is connected to the inside of the housing 71.
When the pipette tip is installed, the positioning rod 5 on the installation head 2 is aligned to the chute 41 on the pipette tip body 4, the pipette tip body 4 is inserted into the installation head 2 along the chute 41, in the pushing process, the shell 71 inside the installation head 2 is extruded and contracted towards the cavity in the stop block 6, the return spring 72 is compressed, when the shell 71 moves to the clamping hole 42, the return spring 72 is released, and the shell 71 enters the clamping hole 42, so that the installation is completed.
When the gun head is disassembled, two fingers are respectively lapped on the two stop blocks 6 to reversely push the gun head out.
The elastic rubber layer 21 is arranged on the inner wall of the mounting head 2, so that the mounting is more compact and stable, and displacement is avoided. One end of the housing 71 is formed into a circular arc surface, so that the housing 71 can be more smoothly extruded in the moving process.
Example 2
This example is based on example 1:
as shown in fig. 2, the distance between the two positioning rods 5 is smaller than the inner diameter of the mounting head 2, so that the mounting head is more convenient to slide.
Example 3
This example is based on example 1:
as shown in fig. 5, the end surface of the stopper 6 away from the pipette tip 3 is an arc surface 61, so that when the pipette tip is detached, fingers can be put on the arc surface to push the pipette tip out reversely.
Example 4
This example is based on example 1:
the inner side wall of the clamping hole 42 is an inclined surface matched with the arc surface of the shell 71. When the gun head is pushed out, the inclined surface can be in better transition and is easy to push out.
After the gun head is installed, the return spring 72 is released, the arc surface of the shell 71 is just positioned in the clamping hole 42, the part of the shell except the arc surface does not enter the clamping hole 42, and the shell 71 is more easily pushed out of the clamping hole 42 by the arc surface.
The utility model discloses the connected mode that does not clarify is the conventional connected mode such as bonding or integrated into one piece.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. A mounting device of a pipette tip is characterized by comprising a tip body, a mounting head and a liquid suction head, wherein the mounting head and the liquid suction head are connected with two ends of the tip body, two sides of the end part of the mounting head are respectively and oppositely provided with an axially extending positioning rod, an axial sliding groove corresponding to the positioning rod is formed in a butt joint port of a pipette body and the mounting head, the inner wall of the mounting head is provided with an elastic rubber layer, two opposite sides of the inner wall of the mounting head are respectively provided with a clamping piece, the outer wall of the pipette body is provided with a clamping hole matched with the clamping piece, the clamping piece comprises a cylindrical shell and a reset spring, an opening is formed in the inner wall of the mounting head at the position of the clamping piece, a convex stop block is arranged on the opening of the outer wall of the mounting head, a cavity communicated with the opening is formed in the stop block, one end of the shell is an arc surface, and an annular extending edge is formed in the opening of the other end of the shell, the extension edge is clamped at the opening of the inner wall of the mounting head, and the arc surface faces the inside of the mounting head; one end of the reset spring is connected with the cavity, and the other end of the reset spring is connected with the inside of the shell.
2. A mounting device for a pipette tip according to claim 1, characterised in that the distance between the two positioning rods is smaller than the internal diameter of the mounting head.
3. A mounting device for a pipette tip according to claim 1, characterised in that the end face of the stop remote from the pipette tip is curved.
4. A mounting device for a pipette tip according to claim 1, wherein the inner side wall of the latching hole is an inclined surface that fits an arc surface of the housing.
5. A device for mounting a pipette tip according to claim 1, wherein the return spring is released after the tip has been mounted, the circular arc surface of the housing being located just inside the latching hole, and the portion of the housing outside the circular arc surface not entering the latching hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121061160.9U CN215277402U (en) | 2021-05-18 | 2021-05-18 | Installation device of pipettor rifle head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121061160.9U CN215277402U (en) | 2021-05-18 | 2021-05-18 | Installation device of pipettor rifle head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215277402U true CN215277402U (en) | 2021-12-24 |
Family
ID=79540736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121061160.9U Active CN215277402U (en) | 2021-05-18 | 2021-05-18 | Installation device of pipettor rifle head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215277402U (en) |
-
2021
- 2021-05-18 CN CN202121061160.9U patent/CN215277402U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2469146B1 (en) | Connector part and fluid connection structure | |
| EP1074781A3 (en) | Pipe joint | |
| CA2526983A1 (en) | Disposable syringe | |
| EP1043076A1 (en) | Waterproof mechanism for emulsion dispensing pump | |
| CN215277402U (en) | Installation device of pipettor rifle head | |
| CN208750237U (en) | It is a kind of anti-seal to enclose the quick connector damaged | |
| CN208793844U (en) | Piping connection seal assembly | |
| EP3978130A1 (en) | Liquid transfer device | |
| CN210784443U (en) | Biopsy sampling adapter | |
| CN210576680U (en) | Detachable HDMI circular connector | |
| CN209398997U (en) | A kind of self-locking fuel oil fast joint of radial seal | |
| CN206487987U (en) | Internal-expansion type blocks connector | |
| CN209398999U (en) | A kind of self-locking Water pipe fast-connection head of retaining ring | |
| CN208474717U (en) | A kind of effective integral type attaching type connector of cotton thread | |
| CN217910503U (en) | Pipette suction head | |
| CN220000861U (en) | Swift notes liquid structure and aerosol generating device | |
| CN212615197U (en) | Cassette liquid transfer pump assembly | |
| CN201351776Y (en) | Air-tight quick pipe joint | |
| CN218208021U (en) | Check valve convenient for plugging and unplugging pipeline | |
| CN219994254U (en) | Pressure maintaining valve with quick plug and one-way seal | |
| CN211436245U (en) | Anti-pumpback pipette head | |
| CN218980040U (en) | Prefilled electronic injection pen | |
| CN216770899U (en) | A plugging device for pipeline gas tightness test | |
| CN217259338U (en) | Correction pen plastic golden pen point | |
| CN218123682U (en) | Battery filling port sealing structure and filling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |