Quick plug type micro-pipe plug with sealing structure

Abstract

The utility model provides a kind of quick plug microtubule plug with sealing structure, it is related to fluid sealing technical field, including microtube, further include: sealing assembly, sealing assembly includes the plug being set on microtube, first limit slot is opened in plug, rubber ring is set in first limit slot, first fixed plate is connected on plug, sealing pad is set on plug, in the utility model, microtube plugging, plug inserts microtube port, rubber ring in first limit slot is deformed due to extrusion, initial sealing is formed by tightly adhering microtube inner wall, first fixed plate drives clamping block to move to second fixed plate during plug advancing, clamping block is embedded second fixed plate corresponding clamping groove to complete locking, at this moment, spring piece is extruded by first fixed plate and sealing pad and stores power, generate sustained thrust to make sealing pad tightly press microtube port end face, form secondary sealing, realize microtube reliable plugging, multiple sealing leakproof, locking firm anti -drop.

Description

Technical Field

[0001] This utility model relates to the field of fluid sealing technology, and in particular to a quick-connect microtube plug with a sealing structure. Background Technology

[0002] Quick-connect microtube plugs with sealing structures are commonly used in laboratory and industrial applications to solve the problem of sealing and preventing leakage during the flow of liquids or gases. Traditional microtube plugs mostly use threaded connections, but this method is relatively cumbersome and has poor sealing performance. Quick-connect microtube plugs have the advantages of quick connection, convenient operation and high sealing performance, which can improve experimental efficiency and are widely used in chemical, pharmaceutical and other high-precision fields.

[0003] However, in practical use, the following shortcomings still exist: existing quick-connect microtube plugs cannot reliably seal the microtube, prevent multiple seals from leaking, lock securely to prevent detachment, and cause liquid or gaseous media leakage, leading to unstable system pressure or contamination. In vacuum or high-pressure environments, leakage may cause equipment performance degradation or even complete failure. Plugs may detach from the tube opening due to vibration, pressure shock, or misoperation, causing instantaneous media splashing or system loss of control. In continuous production processes, plug detachment may lead to production line interruption and economic losses. Single sealing structures may fail under complex operating conditions, resulting in leakage.

[0004] Therefore, this utility model proposes a quick-connect microtube plug with a sealing structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-connect microtube plug with a sealing structure.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a quick-insertion microtube plug with a sealing structure, comprising a microtube, and further comprising:

[0007] A sealing assembly includes a plug disposed on a microtube, the plug having a first limiting groove, a rubber ring disposed in the first limiting groove, a first fixing plate connected to the plug, a sealing gasket disposed on the plug, and a spring piece disposed between the first fixing plate and the sealing gasket.

[0008] A quick-connect locking assembly includes a second fixing plate connected to a microtube, a locking block connected to the first fixing plate, and the locking block being disposed on the second fixing plate.

[0009] Furthermore, a sealing ring is connected inside the plug.

[0010] The beneficial effects of adopting the above-mentioned further solution are: when the plug is inserted into the microtube, the internal sealing ring undergoes elastic deformation due to the compression of the inner wall of the microtube, tightly filling the gap between the plug and the inner wall of the microtube. Its own elasticity continuously generates radial pressure, forming an inner auxiliary seal on the basis of the initial seal of the rubber ring, enhancing the overall sealing performance and preventing the medium from leaking from the gap inside the plug.

[0011] Furthermore, one end of the spring is connected to the first fixing plate.

[0012] The beneficial effects of adopting the above-mentioned further scheme are as follows: when the plug is pushed forward, the first fixing plate moves with the plug, driving the connected spring piece to move synchronously. One end of the spring piece is stably restrained by the first fixing plate, providing a fulcrum for the other end to exert force. When the distance between the first fixing plate and the sealing gasket decreases, the spring piece undergoes bending deformation with the connection point of the first fixing plate as the axis, converting kinetic energy into elastic potential energy for storage.

[0013] Furthermore, the other end of the spring is connected to the sealing gasket.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the elastic force generated by the deformation of the spring is transmitted to the sealing gasket through the connection end with the sealing gasket, always pointing towards the microtube port, pushing the sealing gasket to continuously press the microtube end face. Even if the component is slightly loose after long-term use, the elastic force of the spring can still maintain the pressure of the sealing gasket and ensure the stability of the secondary seal.

[0015] Furthermore, the second fixing plate has a slot, and the card block is disposed in the slot.

[0016] The beneficial effect of adopting the above-mentioned further solution is that when the plug is pushed to the preset position, the locking block enters the locking groove of the second fixing plate along with the first fixing plate. The locking groove limits the locking block, fixing the relative position of the plug and the microtube, realizing rigid locking after quick insertion, and preventing the plug from accidentally coming out.

[0017] Furthermore, a second limiting groove is provided on the side of the sealing gasket near the card slot, and the card block is disposed in the second limiting groove.

[0018] The beneficial effects of adopting the above-mentioned further solution are: the card block is embedded into the card slot and enters the second limiting groove of the sealing gasket at the same time. The second limiting groove forms a wrapping constraint on the card block from the side of the sealing gasket, restricting the radial shaking of the card block and preventing the card block from coming loose from the card slot due to vibration. At the same time, the sealing gasket and the card block are linked to ensure the stable cooperation of sealing and locking.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] In this invention, when the microtube is plugged, the plug is inserted into the microtube port. The rubber ring in the first limiting groove deforms due to compression, tightly adhering to the inner wall of the microtube to form an initial seal. During the plug's advancement, the first fixing plate drives the locking block to move towards the second fixing plate. The locking block is embedded in the corresponding slot of the second fixing plate to complete the locking. At this time, the spring is squeezed and stored by the first fixing plate and the sealing gasket, generating a continuous thrust that makes the sealing gasket press tightly against the end face of the microtube port, forming a secondary seal. This achieves reliable microtube plugging, multiple seals to prevent leakage, and a stable lock to prevent detachment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a quick-connect microtube plug with a sealing structure according to this utility model;

[0022] Figure 2 This is a side view of the structure of a quick-connect microtube plug with a sealing structure according to this utility model;

[0023] Figure 3 This is a structural breakdown diagram of a quick-connect microtube plug with a sealing structure according to this utility model;

[0024] Figure 4 This is a schematic diagram of the microtube structure of a quick-connect microtube plug with a sealing structure according to the present invention;

[0025] Figure 5 This is a schematic diagram of the plug structure of a quick-connect microtube plug with a sealing structure according to this utility model.

[0026] Figure label:

[0027] 1. Microtubules;

[0028] 2. Sealing assembly; 21. Plug; 22. Sealing ring; 23. First limiting groove; 24. Rubber ring; 25. First fixing plate; 26. Spring; 27. Sealing gasket;

[0029] 3. Quick-connect locking assembly; 31. Second fixing plate; 32. Slot; 33. Block; 34. Second limit slot. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1-5As shown, this embodiment provides a technical solution: a quick-connect microtube plug with a sealing structure, including a microtube 1, and further including:

[0032] The sealing assembly 2 includes a plug 21 disposed on the microtube 1, a first limiting groove 23 is provided on the plug 21, a rubber ring 24 is disposed in the first limiting groove 23, a first fixing plate 25 is connected to the plug 21, a sealing gasket 27 is disposed on the plug 21, and a spring piece 26 is disposed between the first fixing plate 25 and the sealing gasket 27.

[0033] The quick-connect locking assembly 3 includes a second fixing plate 31 connected to the microtube 1. A locking block 33 is connected to the first fixing plate 25 and is set on the second fixing plate 31. When the microtube 1 is blocked, the plug 21 is inserted into the port of the microtube 1. The rubber ring 24 in the first limiting groove 23 is deformed due to compression and tightly fits the inner wall of the microtube 1 to form an initial seal. During the process of pushing the plug 21, the first fixing plate 25 drives the locking block 33 to move towards the second fixing plate 31. The locking block 33 is embedded in the corresponding slot 32 of the second fixing plate 31 to complete the locking. At this time, the spring piece 26 is squeezed and stored by the first fixing plate 25 and the sealing gasket 27, generating a continuous thrust to make the sealing gasket 27 press tightly against the end face of the microtube 1 port to form a secondary seal, realizing reliable blocking of the microtube 1, multiple sealing to prevent leakage, and stable locking to prevent falling off.

[0034] The above solutions also have the problem that, when the plug 21 is used to seal the microtube 1, it cannot provide a rigid locking mechanism after quick insertion to prevent the plug 21 from accidentally coming out. Figures 1-3 as well as Figure 5 As shown: A sealing ring 22 is connected inside the plug 21. When the plug 21 is inserted into the microtube 1, the internal sealing ring 22 undergoes elastic deformation due to the pressure from the inner wall of the microtube 1, tightly filling the gap between the plug 21 and the inner wall of the microtube 1. Its own elasticity continuously generates radial pressure, forming an inner auxiliary seal on the basis of the initial seal of the rubber ring 24, enhancing the overall sealing performance and preventing the medium from leaking from the gap inside the plug 21. One end of the spring piece 26 is connected to the first fixing plate 25. When the plug 21 is pushed forward, the first fixing plate 25 moves with the plug 21, driving the connected spring piece 26 to move synchronously. One end of the spring piece 26 is fixed by the first fixing plate. 25 provides stable restraint and a fulcrum for the other end. When the distance between the first fixing plate 25 and the sealing gasket 27 decreases, the spring 26 bends about the connection point of the first fixing plate 25 as the axis, converting kinetic energy into stored elastic potential energy. The other end of the spring 26 is connected to the sealing gasket 27. The elastic force generated by the deformation of the spring 26 is transmitted to the sealing gasket 27 through the connection end with the sealing gasket 27, always pointing towards the port of the microtube 1, pushing the sealing gasket 27 to continuously press the end face of the microtube 1. Even if the component is slightly loose after long-term use, the elastic force of the spring 26 can still maintain the pressure of the sealing gasket 27, ensuring the stability of the secondary seal.

[0035] like Figures 1-5 As shown, a slot 32 is provided on the second fixing plate 31, and a locking block 33 is disposed in the slot 32. When the plug 21 is pushed to the preset position, the locking block 33 enters the slot 32 of the second fixing plate 31 along with the first fixing plate 25. The slot 32 limits the locking block 33, fixing the relative position of the plug 21 and the microtube 1, realizing rigid locking after quick insertion, and preventing the plug 21 from accidentally falling out. A second limiting groove 34 is provided on the side of the sealing gasket 27 near the slot 32. The locking block 33 is disposed in the second limiting groove 34. The locking block 33 enters the second limiting groove 34 of the sealing gasket 27 while being embedded in the slot 32. The second limiting groove 34 forms a wrapping constraint on the locking block 33 from the side of the sealing gasket 27, limiting the radial shaking of the locking block 33, preventing the locking block 33 from falling out of the slot 32 due to vibration, and at the same time allowing the sealing gasket 27 and the locking block 33 to work together to ensure stable sealing and locking.

[0036] Working principle:

[0037] like Figures 1-5 As shown, when the microtube 1 is plugged, the plug 21 is inserted into the port of the microtube 1. The sealing ring 22 inside it is first squeezed by the inner wall of the microtube 1 and undergoes elastic deformation, tightly filling the gap between the plug 21 and the tube wall to form an inner auxiliary seal. Simultaneously, the rubber ring 24 in the first limiting groove 23 outside the plug 21 is squeezed and deformed, adhering to the inner wall of the microtube 1 to form an initial seal. The dual structure blocks the leakage path of the medium from the inside to the outside. During the push-in process, the quick-insertion locking component 3 is activated simultaneously. The first fixing plate 25 drives the locking block 33 to move towards the second fixing plate 31 until the locking block 33 is embedded in the locking groove 32 to complete the rigid locking. At the same time, the locking block 33 enters the second limiting groove 34 of the sealing gasket 27, and prevents radial shaking through the wrapping constraint, achieving double protection against falling off. After locking, the first fixing plate 25 and the sealing gasket 27 squeeze the spring 26, causing it to bend and store force around the connection point of the first fixing plate 25. The resulting elastic force continuously pushes the sealing gasket 27 to press against the end face of the microtube 1 port, forming a multi-level seal. Even if there is slight loosening after long-term use, the continuous thrust of the spring 26 and the radial pressure of the sealing ring 22 can still maintain the sealing pressure. Finally, through triple protection, combined with the anti-fall-off design of the locking structure, the long-term reliable sealing of the microtube 1 is achieved.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick-connect microtube plug with a sealing structure, comprising a microtube (1), characterized in that, Also includes: A sealing assembly (2) includes a plug (21) disposed on a microtube (1), a first limiting groove (23) is provided on the plug (21), a rubber ring (24) is disposed in the first limiting groove (23), a first fixing plate (25) is connected to the plug (21), a sealing gasket (27) is disposed on the plug (21), and a spring piece (26) is disposed between the first fixing plate (25) and the sealing gasket (27). The quick-connect locking assembly (3) includes a second fixing plate (31) connected to the microtube (1), and a locking block (33) connected to the first fixing plate (25), the locking block (33) being disposed on the second fixing plate (31).

2. The quick-connect microtube plug with a sealing structure according to claim 1, characterized in that: A sealing ring (22) is connected inside the plug (21).

3. The quick-connect microtube plug with a sealing structure according to claim 1, characterized in that: One end of the spring (26) is connected to the first fixing plate (25).

4. The quick-connect microtube plug with a sealing structure according to claim 1, characterized in that: The other end of the spring (26) is connected to the sealing gasket (27).

5. A quick-connect microtube plug with a sealing structure according to claim 1, characterized in that: The second fixing plate (31) has a slot (32) and the card block (33) is disposed in the slot (32).

6. The quick-connect microtube plug with a sealing structure according to claim 1, characterized in that: A second limiting groove (34) is provided on the side of the sealing gasket (27) near the slot (32), and the card block (33) is disposed in the second limiting groove (34).

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