CN215784665U

CN215784665U - Sealing structure applied to dynamic axial compression column bottom end cover

Info

Publication number: CN215784665U
Application number: CN202022883821.8U
Authority: CN
Inventors: 徐卓艺; 朱晓芳; 张晓云; 王柄; 张楠楠; 胡腾月
Original assignee: Shanghai Saifanke Separation Technology Co ltd
Current assignee: Shanghai Saifanke Separation Technology Co ltd
Priority date: 2020-12-05
Filing date: 2020-12-05
Publication date: 2022-02-11
Anticipated expiration: 2030-12-05

Abstract

The utility model relates to the technical field of chromatography, in particular to a sealing structure applied to a bottom end cover of a dynamic axial compression column, which comprises a main body and a sieve plate, wherein the main body comprises a chain-type hoop, a sealing mechanism is arranged on the inner side of the chain-type hoop, the sealing mechanism comprises a distributor, the inner side of the chain-type hoop is fixedly connected with the distributor, a connecting groove is formed in the inner side of the distributor, a rubber ring is arranged on the inner side of the connecting groove, a teflon ring is arranged on the inner side of the distributor, the sieve plate is arranged on the surface of the teflon ring, and a fixing groove is formed in the surface of the distributor. The utility model is convenient for the connection and sealing between the distributor and the sieve plate under the connection of the Teflon ring, so that the distributor and the sieve plate are converted from hard connection into extrusion Teflon connection, the connection and sealing effect is better, the multi-layer sealing effect is achieved, and the sealing mechanism is fixedly connected in the distributor, so that the sealing effect is improved.

Description

Sealing structure applied to dynamic axial compression column bottom end cover

Technical Field

The utility model relates to the technical field of chromatography, in particular to a sealing structure applied to a bottom end cover of a dynamic axial compression column.

Background

The dynamic axial compression technology is the only technology which is acknowledged and can keep good separation effect in chromatographic columns of various scales, and is the best column mounting technology in the field of current industrial preparative chromatography.

Traditional dynamic axial compression post sieve assembly method is put into the liquid nitrogen with the sieve, microthermal liquid nitrogen can diminish with the external diameter shrink of sieve, a period of time stews, put the distributor into with the sieve fast, treat the sieve and resume normal atmospheric temperature after, the interference fit assembly is in the same place, nevertheless along with service environment's diversification, conventional sieve assembly can not satisfy the use, so this kind of structure is limited big, and sealed the pad is unfixed in the distributor, when the installation, easily cause the unsealed or sealed poor condition of effect of connecting, consequently need to design a seal structure who is applied to dynamic axial compression post end cover to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing structure applied to a bottom end cover of a dynamic axial compression column, which aims to solve the problems that the conventional sieve plate assembly in the background art cannot be used satisfactorily, a sealing gasket is not fixed in a distributor, and the connection is easy to be unsealed or the sealing effect is poor during the installation and assembly.

In order to achieve the purpose, the utility model provides the following technical scheme that the sealing structure applied to the bottom end cover of the dynamic axial compression column comprises a main body and a sieve plate, wherein the main body comprises a chain-type hoop, a sealing mechanism is arranged on the inner side of the chain-type hoop, the sealing mechanism comprises a distributor, the distributor is fixedly connected to the inner side of the chain-type hoop, a connecting groove is formed in the inner side of the distributor, a rubber ring is arranged on the inner side of the connecting groove, a teflon ring is arranged on the inner side of the distributor, the sieve plate is arranged on the surface of the teflon ring, and a fixing groove is formed in the surface of the distributor.

Preferably, the distributor is fixedly connected to the inner side surface of the chain type hoop, the connecting groove is connected to the surface of the distributor in a groove shape, and the connecting groove is connected to the surface of the distributor in a circular ring shape.

Preferably, the rubber ring is connected to the inner side surface of the connecting groove in an O shape, the teflon ring is connected to the inner side surface of the fixing groove in a circular ring shape, and the sieve plate is connected with the teflon ring in a butting mode on the surfaces.

Preferably, the surface of chain type clamp is provided with fixed establishment, fixed establishment includes the fixed plate, the surperficial swing joint of chain type clamp has the fixed plate, the surface through connection of fixed plate has the bull stick, the fixed surface of bull stick is connected with the carousel, the surface of bull stick has cup jointed to the spring, the solid fixed ring of bottom fixedly connected with of spread groove, the fixed surface of fixed slot is connected with the link plate, the fixed surface of link plate is connected with the dead lever.

Preferably, the fixed plate is plate-shaped and is connected on the surface of chain type clamp, bull stick and chain type clamp plug are connected, the carousel is discoid and connects the top at the bull stick.

Preferably, the two ends of the abutting spring are connected to the surfaces of the rotating rod and the fixing plate, the surface of the fixing ring is fixedly connected with a convex block, the surface of the convex block is arc-shaped, the hanging plate is connected to the surface of the fixing groove in a plurality of groups, and the hanging plate is elastically connected with the fixing rod.

Compared with the prior art, the utility model has the beneficial effects that: under the connection of tetrafluoro circle, be convenient for to the connection seal between distributor and the sieve, make both convert extrusion tetrafluoro from hard connection and connect, make its connection seal effect better, have the sealed effect of multilayer, and sealing mechanism's connection in the distributor is fixed, improves its sealed effect.

(1) Through placing the rubber circle earlier and putting on level in the seal groove, through the step screens of column tube, upwards extrude the location with the distributor subassembly, the chain type clamp encircles outside column tube and distributor subassembly to the nut on the locking chain type clamp makes it fasten, and it is sealed to be the deformation production through the extrusion of four fluorine circles, and the rubber circle becomes to seal once more.

(2) Through the connection of fixed plate and bull stick, under the rotation of carousel, make the bull stick flexible in chain type clamp, and then make the bull stick fix the equipment on the chain type clamp, under the effect of supporting the spring, make the connection of fixed plate more firm, under solid fixed ring's effect, it is fixed to make the rubber circle connect in the spread groove, under the effect of link plate and dead lever, make to support the spring at the fixed slot internal fixation, and then make the connection of sieve in the chain type clamp sealed effectual, can not cause when connecting, the slip of rubber circle and tetrafluoro circle, influence the sealed effect of connecting.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the dispenser of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

fig. 4 is a schematic sectional view illustrating a coupling structure of the hanging plate and the fixing groove of fig. 3 according to the present invention.

In the figure: 1. a main body; 11. a chain-type hoop; 2. a sealing mechanism; 21. a dispenser; 22. connecting grooves; 23. a rubber ring; 24. a teflon ring; 25. a sieve plate; 26. fixing grooves; 3. a fixing mechanism; 31. a fixing plate; 32. a rotating rod; 33. a turntable; 34. resisting the spring; 35. a fixing ring; 36. hanging the plate; 37. and (5) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: the utility model provides a be applied to dynamic axial compression post end cover's seal structure, includes main part (1) and sieve (25), main part (1) includes chain type clamp (11), the inboard of chain type clamp (11) is provided with sealing mechanism (2), sealing mechanism (2) include distributor (21), the inboard fixedly connected with distributor (21) of chain type clamp (11), spread groove (22) have been seted up to the inboard of distributor (21), the inboard of spread groove (22) is provided with rubber circle (23), the inboard of distributor (21) is provided with four fluorine circles (24), the surface of four fluorine circles (24) is provided with sieve (25), fixed slot (26) have been seted up to the surface of distributor (21), place between distributor (21) and sieve (25) through four fluorine circles (24), make both convert into extrusion tetrafluoro connection from the hard joint, the rubber ring (23) is arranged in a sealing groove in the distributor (21), and the chain-type hoop (11) is a combined chain for connecting the distributor (21) assembly and the column tube and is positioned outside the distributor assembly and the column tube.

Furthermore, the distributor (21) is fixedly connected to the inner side surface of the chain type hoop (11), the connecting groove (22) is connected to the surface of the distributor (21) in a groove shape, the connecting groove (22) is connected to the surface of the distributor (21) in a circular ring shape, and a connecting piece on the distributor (21) is sealed under the action of the connecting groove (22) through the connection of the distributor (21) and the connecting groove (22).

Further, rubber circle (23) are "O" shape and connect the inboard surface at spread groove (22), four fluorine circle (24) are the ring shape and connect the inboard surface at fixed slot (26), the surface butt of sieve (25) and four fluorine circle (24) is connected, and four fluorine circle (24) are higher than distributor (21) top one millimeter, extrude after connecting column casing and distributor (21) subassembly through chain type clamp (11), produce the deformation, play the sealed effect of one deck, and rubber circle (23) that contain in the seal groove of distributor (21) produce the secondary seal.

Furthermore, a fixing mechanism (3) is arranged on the surface of the chain-type hoop (11), the fixing mechanism (3) comprises a fixing plate (31), the surface of the chain-type hoop (11) is movably connected with the fixing plate (31), the surface of the fixed plate (31) is connected with a rotating rod (32) in a penetrating way, the surface of the rotating rod (32) is fixedly connected with a rotating disc (33), a resisting spring (34) is sleeved on the surface of the rotating rod (32), the bottom end of the connecting groove (22) is fixedly connected with a fixing ring (35), the surface of the fixed groove (26) is fixedly connected with a hanging plate (36), the surface of the hanging plate (36) is fixedly connected with a fixed rod (37) which is connected with a rotating rod (32) through a fixed plate (31), under the connection of the rotating rod (32) and the rotating disc (33), the fixing plate (31) is stretched on the surface of the chain type clamp (11), so that the connecting piece on the chain type clamp (11) can be pressed and fixed conveniently.

Further, fixed plate (31) are the surface of platelike connection at chain type clamp (11), bull stick (32) and chain type clamp (11) are inserted and are closed and are connected, carousel (33) are discoid and connect on the top of bull stick (32), through the connection of fixed plate (31) and carousel (33), under the rotation of carousel (33), make bull stick (32) rotate on chain type clamp (11) and stretch out and draw back, and then drive the slip of fixed plate (31).

Further, the surface at bull stick (32) and fixed plate (31) is connected to the both ends of propping up spring (34), the fixed surface of solid fixed ring (35) is connected with the lug, and the lug surface is arc, link plate (36) are the surface that the multiunit is connected at fixed slot (26), link plate (36) and dead lever (37) elastic connection, through the connection effect of propping up spring (34), make fixed plate (31) fixed in the connection on chain type clamp (11), under the connection of solid fixed ring (35), the rubber circle (23) of being convenient for is fixed in the connection of spread groove (22), under the effect of link plate (36) and dead lever (37), the convenience is fixed to the connection of tetrafluoro circle (24), and the surface of solid fixed ring (35) and dead lever (37) is arc, can not cause the damage to the surface of rubber circle (23) and tetrafluoro circle (24).

The working principle is as follows: when the distributor is used, the Teflon rings (24) are placed between the distributor (21) and the sieve plates (25) to convert hard connection into extrusion Teflon connection, the rubber rings (23) are placed in the sealing grooves in the distributor (21) to facilitate connection and sealing when being extruded, the chain type hoop (11) is a combined chain for connecting the distributor (21) assembly and the column tube, the distributor (21) and the column tube are fixedly connected and positioned outside the distributor and the column tube, the Teflon rings (24) are one millimeter higher than the plane end of the distributor (21), the column tube and the distributor (21) assembly are connected through the chain type hoop (11) and then are extruded to deform to play a layer of sealing effect.

Through the connection of the fixed plate (31) and the rotating rod (32), under the connection of the rotating disc (33) and the rotating rod (32), the rotating rod (32) drives the rotating disc (33) to stretch out and draw back on the chain type hoop (11), so that the connecting piece on the chain type hoop (11) is convenient to fix, under the action of the abutting spring (34), the connection of the rotating disc (33) is fastened, through the connection of the fixed ring (35), the rubber ring (23) is connected and fixed in the connecting groove (22), under the action of the hanging plate (36) and the fixed rod (37), the connection of the Teflon ring (24) on the fixed groove (26) is fixed, under the action of the fixed ring (35) and the fixed rod (37), the rubber ring (23) and the Teflon sieve plate (24) are fixed in the distributor (21), so that the distributor (21) and the Teflon sieve plate (25) are convenient to connect and fix, and are practical.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a be applied to dynamic axial compression post end cover's seal structure, includes main part (1) and sieve (25), its characterized in that: main part (1) is including chain type clamp (11), the inboard of chain type clamp (11) is provided with sealing mechanism (2), sealing mechanism (2) are including distributor (21), inboard fixedly connected with distributor (21) of chain type clamp (11), connecting groove (22) have been seted up to the inboard of distributor (21), the inboard of connecting groove (22) is provided with rubber circle (23), the inboard of distributor (21) is provided with four fluorine circle (24), the surface of four fluorine circle (24) is provided with sieve (25), fixed slot (26) have been seted up on the surface of distributor (21).

2. A seal structure for use in a dynamic axial compression column bottom end cap according to claim 1, wherein: distributor (21) fixed connection is at the inboard surface of chain type clamp (11), connecting groove (22) are the surface of recess shape connection at distributor (21), connecting groove (22) are the surface that ring shape is connected at distributor (21).

3. A seal structure for use in a dynamic axial compression column bottom end cap according to claim 1, wherein: the rubber ring (23) is connected to the inner side surface of the connecting groove (22) in an O shape, the teflon ring (24) is connected to the inner side surface of the fixing groove (26) in a circular ring shape, and the sieve plate (25) and the teflon ring (24) are connected in an abutting mode.

4. A seal structure for use in a dynamic axial compression column bottom end cap according to claim 1, wherein: the surface of chain type clamp (11) is provided with fixed establishment (3), fixed establishment (3) are including fixed plate (31), the surperficial swing joint of chain type clamp (11) has fixed plate (31), the surface through connection of fixed plate (31) has bull stick (32), the fixed surface of bull stick (32) is connected with carousel (33), the surface of bull stick (32) has been cup jointed and has been supported spring (34), the solid fixed ring (35) of bottom fixedly connected with of spread groove (22), the fixed surface of fixed slot (26) is connected with link plate (36), the fixed surface of link plate (36) is connected with dead lever (37).

5. A seal structure for use in a dynamic axial compression column end cap according to claim 4, wherein: fixed plate (31) are the surface of platelike connection at chain type clamp (11), bull stick (32) and chain type clamp (11) are inserted and shut and are connected, carousel (33) are discoid and connect the top at bull stick (32).

6. A seal structure for use in a dynamic axial compression column end cap according to claim 4, wherein: support the surface that the both ends of spring (34) are connected at bull stick (32) and fixed plate (31), the fixed surface of solid fixed ring (35) is connected with the lug, and the lug surface is arc, link plate (36) are the surface that the multiunit is connected at fixed slot (26), link plate (36) and dead lever (37) elastic connection.