Multi-channel sealing cover

Abstract

The multichannel sealing cover comprises a lower cover, an inner core, a sealing sleeve and a pressing knob assembly, the lower cover is connected with a bottle opening of a reagent bottle, the inner core is connected with the lower cover, the sealing sleeve is coaxially arranged in a sealing groove, and the pressing knob assembly is configured in the mode that when the pressing knob assembly is pressed on the inner core and rotates and feeds relative to the inner core, the pressing knob assembly is pressed on the inner core. According to the multi-channel sealing cover, the inner diameter of the sealing sleeve is larger than the diameter of an inserted pipeline, therefore, the pipeline can be conveniently inserted, when the pipeline is inserted into the sealing sleeve, the rotary knob assembly is pressed to rotate and feed relative to the inner core, the sealing sleeve located in the sealing groove is compressed, and therefore the pipeline can be conveniently inserted into the sealing sleeve. The pipeline sealing device can be matched with a hard pipeline and a soft pipeline, pipeline materials are prevented from being limited, and pipeline insertion operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental vessels, in particular to a multi-channel sealing cap. Background Art

[0002] At present, when moving the sample in the reagent bottle to another phase in the mobile phase, it is necessary to open a hole in the bottle cap of the reagent bottle, and then insert a corresponding pipeline to connect the reagent bottle with the machine.

[0003] However, in order to ensure the sealing performance, the aperture of the bottle cap of the reagent bottle cannot be larger than the diameter of the inserted pipeline. Therefore, when inserting the corresponding pipeline into the opening formed in the bottle cap of the reagent bottle, it is very difficult to insert the pipeline, and only hard pipelines can be inserted. When feeding and adding materials, a flexible hose is required. Due to its flexibility, it cannot be inserted into the opening formed in the bottle cap, resulting in limited use of the pipeline. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the application, to avoid obscuring the purpose of this part, the abstract, and the title. Such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a multi-channel sealing cap that can adapt to both hard pipelines and flexible hoses, avoid limited use of pipelines, and enable simple and convenient insertion of pipelines.

[0006] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0007] A multi-channel sealing cap, comprising:

[0008] A lower cover;

[0009] An inner core, connected to the lower cover, with a plurality of through pipeline holes arranged at equal circumferential intervals on the surface of the inner core, and a sealing groove provided at the upper end of the pipeline holes;

[0010] A sealing sleeve, coaxially arranged in the sealing groove;

[0011] A pressing knob assembly, configured to: when pressed on the sealing sleeve and rotated and fed relative to the inner core, the sealing sleeve located in the sealing groove is compressed, and the aperture contracts and becomes smaller.

[0012] As a preferred solution of the multi-channel sealing cap described in the utility model, a taper is provided on the lower side of the sealing groove.

[0013] As a preferred embodiment of the multi-channel sealing cover of the present utility model, a through hole for the inner core to pass through is provided on the lower cover, a blocking ring is provided on the outer wall of the inner core, the inner core passes through the through hole, and the lower part of the through hole of the lower cover is restricted by the blocking ring, and the upper part of the lower cover is restricted by the bottom of the pressing knob assembly.

[0014] As a preferred embodiment of the multi-channel sealing cover of the present utility model, a through circular hole is provided in the middle of the inner core;

[0015] A one-way ventilation component is further included, and the one-way ventilation component includes a one-way valve arranged in the circular hole, a filter membrane arranged on the surface of the one-way valve, and a film pressing ring arranged on the surface of the filter membrane.

[0016] As a preferred embodiment of the multi-channel sealing cover of the present utility model, the pressing knob assembly includes a pressing gasket, an upper cover and an elastic component.

[0017] As a preferred embodiment of the multi-channel sealing cover of the present utility model, the upper part of the side wall of the inner core has a first wedge-shaped part, and the lower part of the side wall has an external thread;

[0018] The upper part of the inner wall of the upper cover has a second wedge-shaped part, and the lower part of the inner wall has an internal thread.

[0019] As a preferred embodiment of the multi-channel sealing cover of the present utility model, concave embedding grooves are arranged on the surface of the inner core at equal circumferential intervals;

[0020] Part of the elastic component is located in the concave embedding groove, and a plug post inserted into the elastic component is correspondingly arranged at the bottom of the pressing gasket.

[0021] As a preferred embodiment of the multi-channel sealing cover of the present utility model, a through hole groove is provided at the top of the upper cover, and a convex platform passing through the through hole groove is provided at the top of the pressing gasket.

[0022] As a preferred embodiment of the multi-channel sealing cover of the present utility model, a hole groove coaxial with the sealing groove is provided on the surface of the pressing gasket.

[0023] As a preferred embodiment of the multi-channel sealing cover of the present utility model, a through arc-shaped groove is provided on the upper cover, and when the upper cover rotates and feeds relative to the inner core, the hole groove is always located in the arc-shaped groove.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this multi-channel sealing cover, the inner diameter of the sealing sleeve is larger than the diameter of the inserted pipe. Therefore, it is convenient for the pipe to be inserted. When the pipe is inserted into the sealing sleeve, by pressing the knob assembly to rotate and feed relative to the inner core, the sealing sleeve located in the sealing groove is compressed, so that the aperture of the sealing sleeve shrinks and becomes smaller, tightly clamping the pipe to ensure the overall sealing performance. The present utility model can be adapted to both hard pipes and soft pipes, avoiding the limitation of pipe materials, and the pipe insertion operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0026] Figure 1 is a schematic diagram of the overall structure of a multi-channel sealing cover of the present utility model;

[0027] Figure 2 is an exploded view of the overall structure of a multi-channel sealing cover of the present utility model;

[0028] Figure 3 is a cross-sectional view of the overall structure of a multi-channel sealing cover of the present utility model;

[0029] Figure 4 is a cross-sectional view of the overall structure of another embodiment of a multi-channel sealing cover of the present utility model;

[0030] Figure 5 is a partial structure schematic diagram of a multi-channel sealing cover of the present utility model;

[0031] Figure 6 is a structure schematic diagram of the one-way ventilation component of a multi-channel sealing cover of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made with reference to the drawings.

[0033] Secondly, the present utility model will be described in detail in combination with the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model here. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0034] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0035] The present utility model provides a multi-channel sealing cap that can be adapted to hard pipes and soft pipes, avoiding pipe restrictions, and the pipe insertion operation is simple and convenient.

[0036] Figure 1 - Figure 2 Shown is a schematic structural diagram of a first embodiment of a multi-channel sealing cap of the present utility model. Please refer to Figure 1 - Figure 2 A multi-channel sealing cap of this embodiment includes a lower cover 100, an inner core 200, a sealing sleeve 300, and a pressing knob assembly 400;

[0037] The lower cover 100 is used to connect to the mouth of the reagent bottle. In this embodiment, internal threads can be provided on the inner wall of the lower cover 100 to cooperate with the external threads on the mouth of the reagent bottle, so that the lower cover 100 can be screwed onto the mouth of the reagent bottle to complete the connection with the reagent bottle;

[0038] The inner core 200 is connected to the lower cover 100. A number of through pipeline holes are arranged on the surface of the inner core 200 at equal circumferential intervals, and a sealing groove 210 is provided at the upper end of the pipeline holes, and a taper 210a is provided below the sealing groove 210;

[0039] The sealing sleeve 300 is coaxially arranged in the sealing groove 210;

[0040] The pressing knob assembly 400 is configured such that when it is pressed on the sealing sleeve 300 and rotates and feeds relative to the inner core 200, the sealing sleeve 300 located in the sealing groove 210 is compressed, and the aperture shrinks and becomes smaller.

[0041] Combined with Figure 1 - Figure 2 In this embodiment, a multi-channel sealing cap is specifically used as follows: Connect the lower cover 100 to the mouth of the reagent bottle to complete the connection between the multi-channel sealing cap and the reagent bottle. Then, insert the cannula through the pressing knob assembly 400 and correspondingly insert it into the sealing sleeve 300. Then, rotate and feed the pressing knob assembly 400 relative to the inner core 200. At this time, the sealing sleeve 300 located in the sealing groove 210 is compressed, and the aperture shrinks and becomes smaller, tightly clamping the pipe to ensure the overall sealing performance.

[0042] Embodiment 2

[0043] As Figure 2 - Figure 3 shown, in this embodiment, the multi-channel sealing cap includes a lower cover 100, an inner core 200, a sealing sleeve 300, and a pressing knob assembly 400;

[0044] The lower cover 100 is used to connect with the mouth of the reagent bottle. In this embodiment, internal threads can be provided on the inner wall of the lower cover 100 to cooperate with the external threads on the mouth of the reagent bottle, so that the lower cover 100 can be screwed onto the mouth of the reagent bottle to complete the connection with the reagent bottle;

[0045] The inner core 200 is connected to the lower cover 100. A number of through pipeline holes are arranged on the surface of the inner core 200 at equal circumferential intervals, and a sealing groove 210 is provided at the upper end of the pipeline holes, and a taper 210a is provided on the lower side of the sealing groove 210;

[0046] The sealing sleeve 300 is coaxially arranged in the sealing groove 210;

[0047] The pressing knob assembly 400 is configured such that when it is pressed on the sealing sleeve 300 and rotates and feeds relative to the inner core 200, the sealing sleeve 300 located in the sealing groove 210 is compressed, and the aperture shrinks and becomes smaller;

[0048] The pressing knob assembly 400 includes a pressing gasket 410, an upper cover 420 and an elastic member 430. The upper part of the side wall of the inner core 200 has a first wedge part 220, and the first wedge part 220 can be set to have a structure with inclined sides and a horizontal bottom. The lower part of the side wall of the inner core 200 has external threads, and the upper part of the inner wall of the upper cover 420 has a second wedge part 420a, and the second wedge part 420a can be set to have a structure with inclined sides and a horizontal top. The lower part of the inner wall of the upper cover 420 has internal threads. When the pressing knob assembly 400 is pressed on the inner core 200, the bottom of the first wedge part 220 abuts against the top of the second wedge part 420a, and when the external threads and the internal threads cooperate, the pressing knob assembly 400 can be screwed in. And in this embodiment, a concave groove 230 is arranged on the surface of the inner core 200 at equal circumferential intervals, and an elastic member 430 is arranged in the concave groove 230. The bottom of the pressing gasket 410 is correspondingly provided with a plug post 410a inserted into the elastic member 430. When the pressing knob assembly 400 is screwed in, at this time the elastic member 430 is compressed, and the pressing gasket 410 presses the sealing sleeve 300, so that the sealing sleeve 300 is compressed, and the aperture shrinks and becomes smaller, tightly clamping the pipeline to ensure the overall sealing performance. Moreover, when the pressing knob assembly 400 is screwed back, the elastic member 430 gradually returns from the compressed state, and during the recovery process, due to the rebound force of the elastic member 430, the pressing gasket 410 always fits against the inner wall of the upper cover 420, avoiding the problem of the sealing sleeve 300 shaking in the multi-channel sealing cover.

[0049] Preferably, in the present embodiment, in order to facilitate the insertion of the cannula through the pressing knob assembly 400 and then into the sealing sleeve 300, a hole groove 410b coaxial with the sealing groove 210 is provided on the surface of the pressing gasket 410. A through hole groove 420b is provided at the top of the upper cover 420. A boss 410b passing through the through hole groove 420b is provided at the top of the pressing gasket 410. The height of the boss 410b is the same as the thickness of the through hole groove 420b. A hole groove 410b coaxial with the sealing groove 210 is provided on the surface of the pressing gasket 410. In other embodiments, the structural scheme shown in Figure 4 may also be provided. Specifically, a through arc groove 420b is provided on the upper cover 420. When the upper cover 420 rotates and feeds relative to the inner core 200, the hole groove 410b is always located within the arc groove 420b.

[0050] Example 3

[0051] In the present embodiment, the multi-channel sealing cover includes a lower cover 100, an inner core 200, a sealing sleeve 300, and a pressing knob assembly 400;

[0052] The lower cover 100 is used to connect with the reagent bottle mouth. In the present embodiment, internal threads may be provided on the inner wall of the lower cover 100 to cooperate with the external threads on the reagent bottle mouth, so that the lower cover 100 can be screwed onto the reagent bottle mouth to complete the connection with the reagent bottle;

[0053] The inner core 200 is connected to the lower cover 100. A number of through pipeline holes are arranged on the surface of the inner core 200 at equal circumferential intervals. A sealing groove 210 is provided at the upper end of the pipeline holes, and a taper 210a is provided below the sealing groove 210;

[0054] The sealing sleeve 300 is coaxially arranged within the sealing groove 210;

[0055] The pressing knob assembly 400 is configured such that when it is pressed on the sealing sleeve 300 and rotates and feeds relative to the inner core 200, the sealing sleeve 300 located within the sealing groove 210 is compressed, and the aperture shrinks and becomes smaller;

[0056] The pressing knob assembly 400 includes a pressing gasket 410 arranged on the surface of the inner core 200 and an upper cover 420;

[0057] The lower cover 100 is provided with a through hole 110 for the inner core 200 to pass through. A blocking ring 250 is provided on the outer wall of the inner core 200. The inner core 200 passes through the through hole 110, and the lower part of the through hole 110 of the lower cover 100 is restricted by the blocking ring 250. The upper part of the lower cover 100 is restricted by the bottom of the pressing knob assembly 400.

[0058] Example 4

[0059] In this embodiment, internal threads may be provided on the inner wall of the lower cover 100 to cooperate with the external threads on the mouth of the reagent bottle, so that the lower cover 100 can be screwed onto the mouth of the reagent bottle to complete the connection with the reagent bottle;

[0060] The inner core 200 is connected to the lower cover 100. A number of through pipeline holes are arranged on the surface of the inner core 200 at equal circumferential intervals. A sealing groove 210 is provided at the upper end of the pipeline holes, and a taper 210a is provided on the lower side of the sealing groove 210;

[0061] The sealing sleeve 300 is coaxially arranged in the sealing groove 210;

[0062] The pressing knob assembly 400 is configured such that when it is pressed on the sealing sleeve 300 and rotates and feeds relative to the inner core 200, the sealing sleeve 300 located in the sealing groove 210 is compressed, and the aperture contracts and becomes smaller;

[0063] The pressing knob assembly 400 includes a pressing gasket 410, an upper cover 420, and an elastic member 430. The upper part of the side wall of the inner core 200 has a first wedge portion 220, and the first wedge portion 220 can be set to a structure with a sloping side and a horizontal bottom. The lower part of the side wall of the inner core 200 has external threads, and the upper part of the inner wall of the upper cover 420 has a second wedge portion 420a, and the second wedge portion 420a can be set to a structure with a sloping side and a horizontal top. The lower part of the inner wall of the upper cover 420 has internal threads. When the pressing knob assembly 400 is pressed on the inner core 200, the bottom of the first wedge portion 220 abuts against the top of the second wedge portion 420a, and when the external threads and the internal threads cooperate, the pressing knob assembly 400 can be screwed in. And in this embodiment, concave embedding grooves 230 are arranged on the surface of the inner core 200 at equal circumferential intervals, and an elastic member 430 is arranged in the concave embedding grooves 230. An insertion post 410a inserted into the elastic member 430 is correspondingly arranged at the bottom of the pressing gasket 410. When the pressing knob assembly 400 is screwed in, the elastic member 430 is compressed at this time, and the pressing gasket 410 presses the sealing sleeve 300, so that the sealing sleeve 300 is compressed, and the aperture contracts and becomes smaller, tightly clamping the pipeline to ensure the overall sealing performance. Moreover, when the pressing knob assembly 400 is screwed back, the elastic member 430 gradually returns from the compressed state, and during the recovery process, due to the rebound force of the elastic member 430, the pressing gasket 410 always fits against the inner wall of the upper cover 420, avoiding the problem of the sealing sleeve 300 shaking in the multi-channel sealing cap;

[0064] As Figure 5 and Figure 6A through-hole 240 is provided in the middle of the inner core 200 shown. The one-way ventilation assembly 500 is used to supplement or discharge gas into the reagent bottle. Among them, the one-way ventilation assembly 500 includes a one-way valve 510 arranged in the through-hole 240, a filter membrane 520 provided on the surface of the one-way valve 510, and a film pressing ring 530 provided on the surface of the filter membrane 520. The filter membrane 520 is used to filter impurities in the air.

[0065] Although the present invention has been described above with reference to the embodiments, however, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multi-channel sealing cover, characterized in that, Comprising: Lower cover (100); Inner core (200), connected to the lower cover (100), with a number of through pipeline holes arranged at equal circumferential intervals on the surface of the inner core (200), and a sealing groove (210) is provided at the upper end of the pipeline holes; Sealing sleeve (300), coaxially arranged in the sealing groove (210); Pressing knob assembly (400), configured such that when it presses on the sealing sleeve (300) and rotates and feeds relative to the inner core (200), the sealing sleeve (300) located in the sealing groove (210) is compressed, and the aperture shrinks and becomes smaller.

2. The multi-channel sealing cover according to claim 1, characterized in that, A taper (210a) is provided on the lower side of the sealing groove (210).

3. A multi-channel sealing cover according to claim 1, characterized in that, The lower cover (100) is provided with a through hole (110) for the inner core (200) to pass through. A blocking ring (250) is provided on the outer wall of the inner core (200). The inner core (200) passes through the through hole (110), and the lower part of the through hole (110) of the lower cover (100) is restricted by the blocking ring (250), and the upper part of the lower cover (100) is restricted by the bottom of the pressing knob assembly (400).

4. The multi-channel sealing cover according to claim 1, wherein A through circular hole (240) is provided in the middle of the inner core (200); It further includes a one-way ventilation component (500), and the one-way ventilation component (500) includes a one-way valve (510) arranged in the circular hole (240), a filter membrane (520) provided on the surface of the one-way valve (510), and a film pressing ring (530) provided on the surface of the filter membrane (520).

5. A multi-channel sealing cover according to claim 1, characterized in that, The pressing knob assembly (400) includes a pressing gasket (410), an upper cover (420), and an elastic component (430).

6. The multi-channel sealing cover according to claim 5, characterized in that, The upper part of the side wall of the inner core (200) has a first wedge-shaped part (220), and the lower part of the side wall has an external thread; The upper part of the inner wall of the upper cover (420) has a second wedge-shaped part (420a), and the lower part of the inner wall has an internal thread.

7. A multi-channel sealing cover according to claim 5, characterized in that, Concave embedding grooves (230) are arranged at equal circumferential intervals on the surface of the inner core (200); Part of the elastic component (430) is located in the concave embedding groove (230), and an insertion post (410a) inserted into the elastic component (430) is correspondingly provided at the bottom of the pressing gasket (410).

8. A multi-channel sealing cover according to claim 5, characterized in that, A through hole groove (420b) is provided at the top of the upper cover (420), and a convex platform (410b) passing through the through hole groove (420b) is provided at the top of the pressing gasket (410).

9. The multi-channel sealing cover according to claim 5, characterized in that, A hole groove (410b) coaxial with the sealing groove (210) is provided on the surface of the pressing gasket (410).

10. A multi-channel sealing cover according to claim 8, characterized in that, A through arc-shaped groove (420c) is provided on the upper cover (420), and when the upper cover (420) rotates and feeds relative to the inner core (200), the hole groove (410b) is always located in the arc-shaped groove (420c).

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