CN213348053U

CN213348053U - A installation component for on-line filter

Info

Publication number: CN213348053U
Application number: CN202021770322.1U
Authority: CN
Inventors: 郭超晖; 王璐; 姬桂花
Original assignee: Beijing Jingjie Testing Technology Co ltd
Current assignee: Beijing Jingjie Testing Technology Co ltd
Priority date: 2020-08-22
Filing date: 2020-08-22
Publication date: 2021-06-04
Anticipated expiration: 2030-08-22

Abstract

The application relates to a mounting assembly for an online filter, belongs to the technical field of detection equipment, and solves the technical problem that a sealing piece for connecting the online filter and a liquid outlet pipe is easy to block and die in a fastening assembly when a liquid chromatograph is used. The installation component is located the outer fastening components of on-line filter and places fastening components in and will including the cover on-line filter the play liquid end with the drain pipe coupling assembling that the drain pipe is connected, its characterized in that: the drain pipe connecting assembly comprises a sealing element and a fastening element which are integrally formed and coaxially arranged, and through holes for the liquid outlet pipes to penetrate are formed in the sealing element and the fastening element. This application has the sealing member and easily takes out, is difficult for the card to die the technological effect in fastening components.

Description

A installation component for on-line filter

Technical Field

The application relates to the technical field of detection equipment, in particular to a mounting assembly for an online filter.

Background

At present, in the process of using the liquid chromatograph, pretreatment of a sample to be detected and pretreatment of a mobile phase are often needed. During the pretreatment of these samples, it is important to avoid the presence of impurities with a small particle size in the sample to be tested or in the mobile phase. Because these impurities are not removed completely in the sample pretreatment, the related liquid transportation pipelines can be blocked, even the chromatographic column can be damaged, and the detection result of the final belt detection sample can be directly influenced. When the liquid chromatograph is adopted for sample detection, in addition to the requirement that before each mobile phase or a sample to be detected enters the liquid chromatograph, each mobile phase or sample to be detected is subjected to membrane filtration, each mobile phase is required to be subjected to primary filtration through an online filter before entering a chromatographic column, so that the condition that each mobile phase is polluted by related pipelines during the period that each mobile phase flows from a mobile phase containing bottle to the chromatographic column is avoided, and the chromatographic column is polluted to influence the final detection result.

One end of the existing on-line filter is connected with a liquid inlet pipe of a mobile phase, the other end of the existing on-line filter is connected with a liquid outlet pipe of the mobile phase, and the mobile phase intercepts solid impurities in the mobile phase after passing through the on-line filter, so that the impurities in the liquid at the outflow end of the mobile phase are greatly reduced. A sleeve is arranged outside the on-line filter; after the liquid inlet pipe extends into the sleeve, the liquid inlet pipe is connected with the liquid inlet end of the online filter, and the relative position of the liquid inlet pipe and the online filter is fixed through the connection with the sleeve; the liquid outlet pipe extends into the sleeve and then is connected with the liquid outlet end of the on-line filter, and the relative position of the liquid outlet pipe on the on-line filter is fixed through the connection with the sleeve. A sealing piece is arranged on the existing liquid outlet pipe close to the on-line filter, a fastening piece is arranged on one side of the liquid outlet pipe, which is far away from the on-line filter, of the sealing piece, and the sealing piece and the fastening piece are independently and separately arranged on the liquid outlet pipe; the liquid outlet pipe is connected in the sleeve through a fastener.

However, when the on-line filter is actually used, the on-line filter is inconvenient to disassemble. The concrete conditions are as follows: when an inspector uses the liquid chromatograph to detect a sample to be detected, impurities before flowing into the liquid chromatograph are not completely treated, so that more impurities are trapped at the online filter when the flowing phase enters the liquid chromatograph and passes through the online filter. In the long past, clogging of the in-line filter cartridge has occurred, and therefore, it has been necessary to periodically replace the in-line filter. However, the sealing element and the fastening element are two independent parts which are respectively arranged on the liquid outlet pipe, when the online filter is disassembled, the fastening element is taken out under the action of external force, the fastening element is also positioned in the sleeve, and when the external force applied during taking out the fastening element deviates from the axial direction of the fastening element, the sealing element is easy to deform; due to frequent disassembly and assembly, the sealing element deforms more and more, and is finally clamped in the sleeve, so that the blocked online filter cannot be disassembled by disassembling the sealing element.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model provides a mounting assembly for on-line filter, it is through setting up sealing member and fastener as an organic whole for difficult emergence deformation has convenient to detach's advantage in sealing member and fastener department.

The above application purpose of the present application is achieved by the following technical solutions: on-line filter and drain pipe intercommunication, the mounting assembly including the cover locate the outer fastening components of on-line filter and place fastening components's drain pipe coupling assembling in, drain pipe coupling assembling includes the sealing member and the fastener of integrated into one piece and coaxial setting, set up the through-hole that supplies the effluent pipe to penetrate in sealing member and the fastener.

By adopting the technical scheme, when the liquid chromatograph is used for carrying out liquid phase detection on a sample to be detected, the liquid is filtered on line; the liquid flows out from the liquid outlet pipe after being filtered by the online filter. And the liquid outlet pipe connecting assembly and the fastening assembly are matched to fix the liquid outlet pipe at the liquid outlet end of the online filter, and the sealing property of the joint of the online filter and the liquid outlet pipe is ensured. In the application, after the sealing element and the fastening element are arranged to be integrally formed and coaxially arranged, when the sealing element and the fastening element are required to be disassembled, the relative positions of the sealing element and the fastening element along the axial direction and the radial direction of the sealing element and the fastening element cannot be changed, so that the deformation ranges of the sealing element and the fastening element are limited mutually, and the situation that the sealing element is clamped in the fastening assembly when the sealing element and the fastening element are disassembled is avoided.

Preferably, the fastening assembly comprises a first sleeve piece and a second sleeve piece which are sequentially arranged along the liquid flow direction, and the online filter is clamped between the first sleeve piece and the second sleeve piece; the drain pipe connecting assembly is arranged in the second sleeve.

Through adopting above-mentioned technical scheme, realize the firm setting of on-line filter in fastening components to through fastening components's realization on-line filter and the fastening and the connection between the drain pipe.

Preferably, a cavity for accommodating the online filter is formed in the second sleeve piece, and the liquid outlet end of the online filter is clamped on one side wall of the cavity; the sealing piece is abutted against the liquid outlet end of the online filter after penetrating through the second sleeve piece; and the liquid outlet pipe penetrates through the sealing piece and then is clamped into the liquid outlet end of the online filter.

By adopting the technical scheme, the positions of the online filter and the sealing element are limited respectively, and the liquid outlet pipe is conveniently in sealed connection with the online filter.

Preferably, the seal is conical.

Through adopting above-mentioned technical scheme, be convenient for screw the fastener on fastening components with sealing member.

Preferably, the fastener and the fastening assembly are threadedly connected.

Through adopting above-mentioned technical scheme, realize the dismouting of being convenient for of fastener on second suit.

Preferably, one side of the first sleeve, which is far away from the second sleeve, is connected with a liquid inlet pipe, and the liquid inlet pipe is fixedly connected with the first sleeve.

Through adopting above-mentioned technical scheme, realize the firm connection of on-line filter and feed liquor pipe.

Preferably, the sealing element and the fastening element are made of flexible materials.

Through adopting above-mentioned technical scheme for sealing member and fastener have certain deformation scope, when fastening member and sealing member are taking out, be convenient for take out sealing member and fastener smoothly when having the card pause in the fastening assembly.

Preferably, a handle is arranged at one end of the fastening piece far away from the sealing piece, and the handle extends out of the fastening assembly.

Through adopting above-mentioned technical scheme, the setting up of handle provides a point of application of force when operating personnel dismantles the fastener, can conveniently realize the installation or the dismantlement of fastener laborsavingly.

Preferably, one end of the handle, which is far away from the fastener, is provided with a tapered groove.

Through adopting above-mentioned technical scheme, when installing the drain pipe, because the pipeline of mobile phase all is thinner on the liquid chromatograph, the pipe diameter is no longer than 1 mm, therefore the setting up of bell jar makes and is convenient for wear into the fastener fast with the drain pipe in.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fastening assembly and the liquid outlet pipe connecting assembly are arranged outside the online filter, and the sealing element and the fastening element in the liquid outlet pipe connecting assembly are integrally formed, so that the advantages that the sealing element and the fastening element are convenient to disassemble, and the sealing element is not easy to clamp in the fastening assembly are achieved;

2. the matching relationship between the clamping plate and the sealing piece, between the clamping plate and the online filter and between the online filter and the sealing piece enables the online filter and the liquid outlet pipe to be connected in a sealing manner;

3. the handle that sets up on the fastener of this application is convenient for realize screwing on the fastener on the second external member or unscrew from the second external member.

Drawings

Fig. 1 is a schematic view of the overall structure of the mounting assembly of the present application in a mounted state.

Fig. 2 is an exploded view of the mounting assembly of fig. 1 in an installed state.

Fig. 3 is a cross-sectional view of the mounting assembly of the present application.

Figure 4 is a schematic diagram of a configuration embodying the outlet coupling assembly of figure 1.

In the figure, 1, an in-line filter; 11. a liquid inlet part; 12. a filtering part; 13. a liquid outlet part; 2. a liquid inlet pipe; 3. a liquid outlet pipe; 4. a fastening assembly; 41. a first kit; 411. a first connection block; 42. a second kit; 421. a second accommodating chamber; 422. a third accommodating chamber; 423. a fourth accommodating chamber; 5. a second connecting block; 6. the liquid outlet pipe connecting assembly; 61. a seal member; 62. a fastener; 63. a handle; 64. and (4) a tapered groove.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The present application provides a mounting assembly for an in-line filter for secure mounting of a pipe connection at the in-line filter. Referring to fig. 1 and 2, the mounting assembly includes a fastening assembly 4 sleeved outside the on-line filter 1, a second connecting block 5 disposed in the fastening assembly 4 and connecting the liquid inlet end of the on-line filter 1 with the liquid inlet pipe 2, and a liquid outlet pipe connecting assembly 6 disposed in the fastening assembly 4 and connecting the liquid outlet end of the on-line filter 1 with the liquid outlet pipe 3.

Referring to fig. 2, the in-line filter 1 includes a liquid inlet portion 11, a filter portion 12, and a liquid outlet portion 13 integrally formed in this order; a cavity is arranged in the filtering part 12, a filter membrane is arranged in the cavity, and the liquid inlet part 11 and the liquid outlet part 13 are both communicated with the cavity of the filtering part 12. Wherein, the end of the liquid inlet part 11 of the online filter 1 far away from the filter part 12 is in a cone shape, and the end of the liquid outlet part 13 of the online filter 1 far away from the filter part 12 is also in a cone shape. The liquid inlet part 11 of the on-line filter 1 is inserted with a liquid inlet pipe 2, and the liquid outlet part 13 of the on-line filter 1 is inserted with a liquid outlet pipe 3.

Referring to fig. 2 and 3, the fastening assembly 4 comprises a first casing 41 and a second casing 42 arranged in series in the direction of flow of the liquid. Specifically, the second connecting block 5 and the first sleeve 41 are both bolts. Wherein the second connecting block 5, the first sleeve 41 and the second sleeve 42 are coaxially arranged. The second connecting block 5 extends into the side of the first sleeve 41 away from the second sleeve 42 and is screwed with the first sleeve 41. A first connecting block 411 is fixedly connected to a side of the first sleeve 41 close to the second sleeve 42, and the first connecting block 411 extends into the first sleeve 41 and is in threaded connection with the first sleeve 41. One side of the first sleeve 41 close to the second sleeve 42 is provided with a first accommodating cavity for accommodating the liquid inlet portion 11 of the in-line filter 1, and the second sleeve 42 is internally provided with a second accommodating cavity 421 for accommodating the filtering portion 12 of the in-line filter 1 and a third accommodating cavity 422 for accommodating the liquid outlet portion 13 of the in-line filter 1 in sequence.

A drain pipe connecting assembly 6 is arranged on the side of the second sleeve member 42 away from the third accommodating cavity 422. Specifically, referring to fig. 4, the liquid outlet pipe connecting assembly 6 includes a sealing member 61 and a fastening member 62 that are integrally formed and coaxially disposed, through holes for the liquid outlet pipe 3 to penetrate are formed in the sealing member 61 and the fastening member 62, and the liquid outlet pipe 3 and the liquid outlet pipe connecting assembly 6 are in interference fit. Wherein, the sealing member 61 is conical, the fastening member 62 is a round rod, the sealing member 61 and the fastening member 62 are coaxially arranged, and the diameter of the bottom surface of the sealing member 61 is the same as the diameter of the rod of the fastening member 62. Referring back to fig. 3, a fourth accommodating cavity 423 for the sealing element 61 and the fastening element 62 to enter is formed in one end of the second sleeve 42, which is far away from the first accommodating cavity, the fourth accommodating cavity 423 is matched with the sealing element 61 and the fastening element 62 in shape, and the fourth accommodating cavity 423 is communicated with the third accommodating cavity 422. And after the installation, the end surface of the liquid outlet part 13 far away from the filter part 12 is abutted against the end surface of the fastening piece 62. The end of the fastener 62 remote from the seal 61 is threadably connected to the second sleeve 42 for easy removal.

When the online filter 1, the liquid inlet pipe 2, the liquid outlet pipe 3 and the mounting assembly are mounted, the liquid inlet pipe 2 penetrates through the second connecting block 5, extends out of the second connecting block 5 for a certain distance, and is inserted into the liquid inlet part 11 of the online filter 1; and the liquid inlet pipe 2 is welded with the second connecting block 5. The outlet pipe 3 is inserted into the fastening member 62 along the central axis thereof from the end surface of the fastening member 62 away from the sealing member 61, passes through the sealing member 61, and finally is inserted into the outlet portion 13 of the in-line filter 1. Wherein, drain pipe 3 and fastener 62, drain pipe 3 and sealing member 61 are all detachably connected.

The advantage of the above arrangement is that the liquid flows out of the liquid outlet pipe 3 after being filtered by the in-line filter 1. And the liquid outlet pipe connecting assembly 6 and the second sleeve 42 are arranged in a matched manner, so that the liquid outlet pipe 3 is fixed at the liquid outlet end of the online filter 1, and the sealing performance of the joint of the online filter 1 and the liquid outlet pipe 3 is ensured. In particular, after the sealing element 61 and the fastening element 62 are integrally and coaxially arranged, when the sealing element 61 and the fastening element 62 need to be disassembled, the relative positions of the sealing element 61 and the fastening element 62 along the axial direction and the radial direction of the sealing element 61 and the fastening element 62 are not changed, so that the deformation ranges of the sealing element 61 and the fastening element 62 are limited by each other, and the times that the sealing element 61 is clamped in the second sleeve 42 when the sealing element 61 and the fastening element 62 are disassembled are reduced.

In order to further facilitate the removal of the sealing member 61 and the fastening member 62 from the second sleeve member 42, the sealing member 61 and the fastening member 62 are made of a flexible material, and may be selected from plastic materials.

Further specifically, referring to fig. 3 or 4, a handle 63 is provided on the end of the fastener 62 remote from the seal 61; the handle 63 extends from the second sleeve 42 (see fig. 4).

When installing drain pipe 3, because the pipeline of mobile phase all is thinner on the liquid chromatograph, and the pipe diameter is no longer than 1 mm, consequently keep away from fastener 62's one end on handle 63 and seted up tapered slot 64 for be convenient for wear into fastener 62 with drain pipe 3 fast in.

The implementation process of the embodiment is as follows: when the on-line filter 1 needs to be replaced, the fastener 62 is unscrewed, and the sealing piece 61 and the liquid outlet pipe 3 are taken out together; the connection between the first and

second members

41 and 42 is then removed and the in-line filter 1 is removed. The process is reversed when installing a new in-line filter 1.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mounting assembly for on-line filter, on-line filter (1) and drain pipe (3) intercommunication, mounting assembly including the cover locate outside on-line filter (1) fastening components (4) with place in the drain pipe coupling assembling (6) of fastening components (4), its characterized in that: the liquid outlet pipe connecting assembly (6) comprises a sealing piece (61) and a fastening piece (62) which are integrally formed, and through holes for the liquid outlet pipes (3) to penetrate are formed in the sealing piece (61) and the fastening piece (62).

2. A mounting assembly for an in-line filter according to claim 1, wherein: the fastening assembly (4) comprises a first sleeve piece (41) and a second sleeve piece (42) which are sequentially arranged along the flowing direction of liquid, and the online filter (1) is clamped between the first sleeve piece (41) and the second sleeve piece (42); the drain pipe connecting assembly (6) is arranged in the second sleeve member (42).

3. A mounting assembly for an in-line filter according to claim 2, wherein: a cavity for accommodating the online filter (1) is formed in the second sleeve piece (42), and the liquid outlet end of the online filter (1) is clamped on one side wall of the cavity; the sealing element (61) is inserted into the second sleeve (42) and then is abutted against the liquid outlet end of the online filter (1); the liquid outlet pipe (3) penetrates through the sealing piece (61) and then is clamped into the liquid outlet end of the online filter (1).

4. A mounting assembly for an in-line filter according to claim 3, wherein: the sealing element (61) is conical.

5. A mounting assembly for an in-line filter according to claim 2, wherein: the fastener (62) is threadably connected to the second sleeve (42).

6. A mounting assembly for an in-line filter according to claim 2, wherein: one side of the first sleeve piece (41) far away from the second sleeve piece (42) is connected with a liquid inlet pipe (2), and the liquid inlet pipe (2) is fixedly connected with the first sleeve piece (41).

7. A mounting assembly for an in-line filter according to claim 1, wherein: the sealing element (61) and the fastening element (62) are made of flexible materials.

8. A mounting assembly for an in-line filter according to claim 1, wherein: and a handle (63) is arranged at one end of the fastening piece (62) far away from the sealing piece (61), and the handle (63) extends out of the fastening assembly (4).

9. A mounting assembly for an in-line filter according to claim 8, wherein: one end of the handle (63) far away from the fastener (62) is provided with a tapered groove (64).