CN212018213U - Quick cover body connecting device on capillary tube centrifuge rotating disc - Google Patents
Quick cover body connecting device on capillary tube centrifuge rotating disc Download PDFInfo
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- CN212018213U CN212018213U CN202020590304.9U CN202020590304U CN212018213U CN 212018213 U CN212018213 U CN 212018213U CN 202020590304 U CN202020590304 U CN 202020590304U CN 212018213 U CN212018213 U CN 212018213U
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- steel ball
- column body
- convex ring
- jack
- moving sleeve
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Abstract
The utility model discloses a fast connecting device for a cover body on a rotating disc of a capillary tube centrifuge, which comprises a cylinder body, a spring and a moving sleeve, wherein the spring and the moving sleeve are sequentially sleeved at the lower part of the cylinder body, and the moving sleeve can move up and down along the axial direction relative to the cylinder body; the lower end of the column body is provided with a jack, a plurality of steel ball holes which are communicated with the jack along the radial direction are uniformly distributed on the periphery of the column body, the jack is correspondingly matched with an inserted rod on a rotary disc on the capillary centrifuge, steel balls are arranged in the steel ball holes, and the inner diameter of the communicated junction position of the steel ball holes and the jack is smaller than the ball diameter of the steel balls; the inner wall of the movable sleeve is provided with a convex ring, and the inner wall of the convex ring is matched with and extrudes the steel balls, so that the steel balls are always positioned in the steel ball holes, and part of the steel balls are positioned in the insertion holes. The utility model discloses a pulling removes the cover and can realize being connected and separating of lid and carousel, has simplified the dismouting process greatly to improve work efficiency.
Description
Technical Field
The utility model belongs to the technical field of the separation equipment of drawinging, concretely relates to lid quick connecting device on capillary centrifuge carousel.
Background
Capillary centrifuge for the laboratory is with equipment, includes casing, carousel and carousel lid usually, places a plurality of experiment test tubes on the carousel, and the carousel lid passes through screw thread fixed connection on the carousel. Above this kind of carousel lid passes through thread tightening's connected mode with the carousel, because the number of times of experiment is more, all need carry out the dismouting to the carousel lid at every turn, and this results in the dismouting comparatively loaded down with trivial details, and work efficiency is low.
Disclosure of Invention
The utility model aims to solve the technical problem that a lid quick connecting device on capillary centrifuge carousel is provided, it can realize the high-speed joint between lid and the carousel, improves work efficiency.
In order to solve the technical problem, the utility model relates to a lid quick connect device on capillary centrifuge carousel's technical solution does:
the utility model discloses a fast connecting device for a cover body on a rotating disc of a capillary tube centrifuge, which comprises a cylinder body, a spring and a moving sleeve, wherein the spring and the moving sleeve are sequentially sleeved at the lower part of the cylinder body, one end of the spring is propped against the cylinder body, the other end of the spring is propped against the moving sleeve, and the moving sleeve can move up and down along the axial direction relative to the cylinder body; the lower end of the column body is provided with a jack, a plurality of steel ball holes which are communicated with the jack along the radial direction are uniformly distributed on the periphery of the column body, the jack is correspondingly matched with an inserted rod on a rotary disc on the capillary centrifuge, steel balls are arranged in the steel ball holes, and the inner diameter of the communicated junction position of the steel ball holes and the jack is smaller than the ball diameter of the steel balls; the inner wall of the moving sleeve is provided with a convex ring, and the inner wall of the convex ring is matched with and extrudes the steel balls, so that the steel balls are always positioned in the steel ball holes, part of the steel balls are positioned in the insertion holes, and part of the steel balls positioned in the insertion holes are matched and clamped at the neck parts of the insertion rods; the inner diameter of the inner wall of the moving sleeve below the convex ring is larger than the outer diameter of the position of the column body matched with the steel ball hole, the spacing distance between the inner wall of the moving sleeve below the convex ring and the outer peripheral surface of the position of the column body matched with the steel ball hole is smaller than the diameter of the steel ball, and meanwhile, the spacing distance between the inner wall of the moving sleeve below the convex ring and the outer peripheral surface of the position of the column body matched with the steel ball hole is larger than the width of the steel ball in; the lower end of the column body is fixedly connected with the cover body.
The lower end of the column body is inserted into the center hole of the cover body, and the clamp spring groove at the lower end of the column body is clamped through the clamp spring, so that the column body is fixedly connected to the cover body.
The upper edge of the movable sleeve extends outwards to form a flanging.
And the top surface of the column body is provided with a circular arc groove which is sunken downwards.
The moving displacement of the moving sleeve relative to the column body is equal to the distance between the convex ring and the inner wall of the moving sleeve below the convex ring.
The lower edge of the convex ring is provided with a chamfer.
The utility model has the advantages that:
compared with the prior art, the utility model discloses a lid quick connecting device on capillary centrifuge carousel shifts up through driving the removal cover, make the steel ball be in the position of the bulge loop below of removing the cover, thereby make the steel ball have along radial outside moving trend, at this moment, can insert in the jack of cylinder with the inserted bar on the carousel, after inserting and establishing target in place, the neck of inserted bar is just to the steel ball hole, afterwards, release the removal cover, receive the effect of spring, the removal cover moves down and resets, at this moment, bulge loop extrusion steel ball is along radial inside shifting, and make the neck of part card at the inserted bar of steel ball, thereby realize the fixed connection of lid and carousel.
Drawings
FIG. 1 is a perspective view of a capillary centrifuge with the cover removed in accordance with the present invention;
FIG. 2 is an exploded perspective view of the quick lid connector of the capillary centrifuge rotor disc of the present invention;
FIG. 3 is a cross-sectional view of the fast connecting device for the cover on the rotating disk of the capillary centrifuge in a locked state with the inserted link;
fig. 4 is a cross-sectional view of the structure of the fast connecting device for the cover on the rotating disk of the capillary centrifuge in the unlocking state with the inserted link.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
referring to fig. 1 to 4, the present invention provides a fast connecting device for a cover on a rotating disc of a capillary centrifuge, which comprises a cylinder 1, a spring 2 and a moving sleeve 3, wherein the spring 2 and the moving sleeve 3 are sequentially sleeved on the lower portion of the cylinder 1, one end of the spring 2 is supported on the cylinder 1, and the other end is supported on the moving sleeve 3, so that the moving sleeve 3 can move up and down along an axial direction relative to the cylinder 1 by pulling the moving sleeve 3; the lower end of the column body 1 is provided with a jack 4, the periphery of the column body 1 is uniformly provided with a plurality of steel ball holes 5 which are radially communicated with the jack 4, the jack 4 is correspondingly matched with an inserted rod 8 on a rotary disc 7 on a capillary centrifuge 6, steel balls 9 are arranged in the steel ball holes 5, and the inner diameter of the communicated junction position of the steel ball holes 5 and the jack 4 is smaller than the ball diameter of the steel balls 9; the inner wall of the moving sleeve 3 is provided with a convex ring 10, the inner wall of the convex ring 10 is matched with and extrudes the steel ball 9, so that the steel ball 9 is always positioned in the steel ball hole 5, one part of the steel ball 9 is positioned in the jack 4, and one part of the steel ball 9 positioned in the jack 4 is matched and clamped at the neck 11 of the inserted link 8; the inner diameter of the inner wall 12 of the moving sleeve 3 below the convex ring 10 is larger than the outer diameter of the column body 1 at the position matched with the steel ball hole 5, the spacing distance 13 between the inner wall 12 of the moving sleeve 3 below the convex ring 10 and the outer peripheral surface of the column body 1 at the position matched with the steel ball hole 5 is smaller than the diameter of the steel ball 9, and meanwhile, the spacing distance 13 between the inner wall 12 of the moving sleeve 3 below the convex ring 10 and the outer peripheral surface of the column body 1 at the position matched with the steel ball hole 5 is larger than the width of the steel ball 9 in the jack 4; the lower end of the column body 1 is fixedly connected with the cover body 14, and under the elastic force of the spring 2, the lower end of the movable sleeve 3 is abutted against the cover body 14 in a natural state.
The lower end of the column body 1 is of a step structure, is inserted into a central hole 15 of the cover body 14, and is clamped in a clamp spring groove 17 at the lower end of the column body 1 through a clamp spring 16, so that the column body 1 is fixedly connected to the cover body 14.
The upper edge of the moving sleeve 3 extends outwards and is provided with a flange 18.
The top surface of the column body 1 is provided with a circular arc groove 19 which is concave downwards.
The displacement of the moving sleeve 3 relative to the column 1 is equal to the distance between the convex ring 10 and the inner wall 12 of the moving sleeve 3 below the convex ring 10.
The lower edge of the collar 10 has a chamfer 20.
It is following right the utility model discloses a description is made to lid quick connect device's on capillary centrifuge carousel theory of operation:
the utility model discloses a cover body quick connecting device, which is divided into two parts, wherein one part is an inserted link 8 fixed on a turntable 7, a neck part 11 is arranged on the inserted link 8, and the top of the inserted link 8 is a ball head 21; the other part is a part which is formed by the column body 1 fixed at the center of the cover body 14, the movable sleeve 3, the spring 2 and the steel ball 9, and the ball diameter of the ball head 21 is matched with the aperture of the jack 4 of the column body 1. When the cover 14 needs to be fixedly installed on the rotary table 7, the thumb is pressed against the arc groove 19 at the top of the cylinder 1, the arc groove 19 enables the thumb to be well combined with the cylinder 1, the index finger and the middle finger clamp the moving sleeve 3 and respectively push and pull the end faces of the flanges 18 at the upper edge of the moving sleeve 3, so as to drive the moving sleeve 3 to move upwards along the axial direction relative to the cylinder 1, after the moving sleeve 3 moves upwards to the right position, at the moment, the steel ball hole 5 is over against the inner wall 12 of the moving sleeve 3 below the convex ring 10, so that the steel ball 9 can move outwards along the radial direction in the steel ball hole 5, and a part of the steel ball 9 in the jack 4 is also in the steel ball hole 5, the jack 4 is in a full-size state, because the spacing distance 13 between the inner wall 12 of the moving sleeve 3 below the convex ring 10 and the outer circumferential surface of the cylinder 1 at the position matched with the steel, the inner wall 12 of the movable sleeve 3 below the convex ring 10 and the outer peripheral surface of the column body 1 at the position matched with the steel ball hole 5 are spaced by a distance 13 which is larger than the width of the steel ball 9 in the jack 4, so that the steel ball 9 can not move outwards to leave the steel ball hole 5, and can also move outwards in the radial direction to leave the jack 4, the ball head 21 of the inserted link 8 can be smoothly inserted into the jack 4, and the neck 11 of the inserted link 8 is in place and just faces the steel ball hole 5, the aperture of the steel ball hole 5 can be gradually reduced inwards in the radial direction, and the maximum aperture is larger than or equal to the ball diameter of the steel ball 9; the aperture of the steel ball hole 5 can also be composed of a straight section hole 22 and a chamfer angle hole 23, the aperture of the straight section hole 22 is consistent with the ball diameter of the steel ball 9, and the aperture of the chamfer angle hole 23 is smaller than the ball diameter of the steel ball 9, so that a part of the steel ball 9 can be positioned in the jack 4 and can limit the inserted link 8 under the condition that the steel ball 9 is not separated from the steel ball hole 5; after the insertion rod 8 is inserted in place, the movable sleeve 3 is released, the movable sleeve 3 moves downwards to reset under the action of the elastic force of the spring 2, the lower edge of the convex ring 10 at the moment is provided with a chamfer 20, so that the steel ball 9 is smoothly extruded, the steel ball 9 moves inwards in the steel ball hole 5 along the radial direction, when the inner wall of the convex ring 10 is matched with the outer side of the steel ball 9, the steel ball 9 is extruded in place, and finally the steel ball 9 is clamped at the neck of the insertion rod 8, so that the cover body 14 and the rotary table 7 are connected and fixed.
To sum up, the utility model discloses a lid quick connecting device removes cover 3 through the pulling and can realize being connected and separating of lid 14 and carousel 7, has simplified the dismouting process greatly to improve work efficiency.
The above detailed description is made on the fast connecting device for the cover body on the rotating disc of the capillary centrifuge provided by the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation manner of the present invention, and the description of the above embodiments is only used to help understanding the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (6)
1. The utility model provides a lid quick connect device on capillary centrifuge carousel which characterized in that: the spring is sleeved at the lower part of the cylinder in sequence, one end of the spring is abutted against the cylinder, the other end of the spring is abutted against the movable sleeve, and the movable sleeve can move up and down along the axial direction relative to the cylinder; the lower end of the column body is provided with a jack, a plurality of steel ball holes which are communicated with the jack along the radial direction are uniformly distributed on the periphery of the column body, the jack is correspondingly matched with an inserted rod on a rotary disc on the capillary centrifuge, steel balls are arranged in the steel ball holes, and the inner diameter of the communicated junction position of the steel ball holes and the jack is smaller than the ball diameter of the steel balls; the inner wall of the moving sleeve is provided with a convex ring, and the inner wall of the convex ring is matched with and extrudes the steel balls, so that the steel balls are always positioned in the steel ball holes, part of the steel balls are positioned in the insertion holes, and part of the steel balls positioned in the insertion holes are matched and clamped at the neck parts of the insertion rods; the inner diameter of the inner wall of the moving sleeve below the convex ring is larger than the outer diameter of the position of the column body matched with the steel ball hole, the spacing distance between the inner wall of the moving sleeve below the convex ring and the outer peripheral surface of the position of the column body matched with the steel ball hole is smaller than the diameter of the steel ball, and meanwhile, the spacing distance between the inner wall of the moving sleeve below the convex ring and the outer peripheral surface of the position of the column body matched with the steel ball hole is larger than the width of the steel ball in; the lower end of the column body is fixedly connected with the cover body.
2. The quick cover connecting device on the rotating disk of the capillary centrifuge according to claim 1, characterized in that: the lower end of the column body is inserted into the center hole of the cover body, and the clamp spring groove at the lower end of the column body is clamped through the clamp spring, so that the column body is fixedly connected to the cover body.
3. The quick connecting device for the cover body on the rotating disk of the capillary centrifuge according to claim 1 or 2, characterized in that: the upper edge of the movable sleeve extends outwards to form a flanging.
4. The quick connecting device for the cover body on the rotating disk of the capillary centrifuge according to claim 1 or 2, characterized in that: and the top surface of the column body is provided with a circular arc groove which is sunken downwards.
5. The quick cover connecting device on the rotating disk of the capillary centrifuge according to claim 1, characterized in that: the moving displacement of the moving sleeve relative to the column body is equal to the distance between the convex ring and the inner wall of the moving sleeve below the convex ring.
6. The quick cover connecting device on the rotating disk of the capillary centrifuge according to claim 1, characterized in that: the lower edge of the convex ring is provided with a chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590304.9U CN212018213U (en) | 2020-04-20 | 2020-04-20 | Quick cover body connecting device on capillary tube centrifuge rotating disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590304.9U CN212018213U (en) | 2020-04-20 | 2020-04-20 | Quick cover body connecting device on capillary tube centrifuge rotating disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212018213U true CN212018213U (en) | 2020-11-27 |
Family
ID=73495115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020590304.9U Active CN212018213U (en) | 2020-04-20 | 2020-04-20 | Quick cover body connecting device on capillary tube centrifuge rotating disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212018213U (en) |
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2020
- 2020-04-20 CN CN202020590304.9U patent/CN212018213U/en active Active
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