Coffee machine pipeline conveying joint sealing structure

Abstract

The utility model discloses a coffee machine pipeline conveying connector sealing structure which comprises a connector body, a sealing assembly and a clamping jaw piece are fixedly arranged in the connecting end of the connector body, the sealing assembly is used for fastening and sealing a pipeline, and the outlet end of the sealing assembly is provided with a blocking part abutting against the end of the pipeline. The clamping jaw is arranged close to the other end of the sealing assembly, the connector body is movably connected with an unlocking piston, the end of the unlocking piston abuts against the fixing jaw of the clamping jaw piece, the other end of the unlocking piston extends out of the connector body, in the using process, only a pipeline needs to be inserted from the unlocking piston, operation is very simple, and the connector is convenient to use. Even in a very narrow space, operation can be easily carried out, all sealed parts are transferred into the connector, and compared with a traditional installation mode, the pipeline assembly steps are reduced, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connecting water circuits and steam sealing joints, and specifically relates to a sealing structure for a coffee machine pipeline conveying joint. Background Art

[0002] With the rise of the coffee trend in China, more and more people like to make coffee at home. Therefore, the demand for coffee machines is also increasing, and the quality of coffee machines is also crucial. For household coffee machines, they usually have grinding and brewing functions, that is, a water tank is built in the coffee machine, and the water tank is connected to a conveying pipeline through a sealing joint. Currently, the sealing joint in a coffee machine specifically includes a body, a plug buckle, and a sealing ring, as well as a metal pipe sleeve at the end of the pipeline. During the assembly process, first, the metal pipe sleeve needs to be riveted to the end of the pipeline, then the sealing ring is sleeved on the end of the pipeline, and then the end with the sealing ring is inserted into the body, and finally, the plug buckle is used for fixation;

[0003] The process is very cumbersome, and during the installation process, the other end of the joint needs to be pre-installed on the coffee machine. The installation space in the coffee machine is very narrow, which increases the assembly difficulty, reduces the installation efficiency, and is extremely inconvenient for maintenance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sealing structure for a coffee machine pipeline conveying joint to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sealing structure for a coffee machine pipeline conveying joint includes a joint body. A sealing component and a claw member are fixedly arranged inside the connecting end of the joint body. The sealing component is used for fastening and sealing the pipeline, and a blocking portion that abuts against the end of the pipeline is arranged at the outlet end of the sealing component. The claw is arranged near the other end of the sealing component;

[0007] The joint body is movably connected with an unlocking piston. The end of the unlocking piston abuts against the fixed claw of the claw member, and the other end extends out of the joint body.

[0008] As a further technical solution, the blocking portion is an independent silicone sealing member I.

[0009] As a further technical solution, a fastener is installed at the opening of the connecting end. The end of the fastener abuts against the end of the sealing component, and a first step is arranged on the outer periphery of the fastener to abut against the inner wall of the connecting end. A channel for the unlocking piston to penetrate is arranged inside the fastener. A second step is arranged on the inner wall of the channel. A third step is arranged on the outer periphery of the unlocking piston and can abut against the second step.

[0010] Further technical solution: At least one inwardly extending fastening annular flange is provided inside the sealing assembly, and the fastening annular flange is used to narrow the diameter of the pipeline.

[0011] Further technical solution: A conical surface is provided on one side of the fastening annular flange close to the claw member.

[0012] Further technical solution: The sealing assembly includes a second sealing member, a third sealing member, and a fourth sealing member that are sequentially in contact. The fastening annular flange is provided in the third sealing member. The aperture diameter of the fastening annular flange is smaller than the outlet aperture diameter of the fourth sealing member and the outlet aperture diameter of the second sealing member. The outlet aperture diameter of the second sealing member is smaller than or equal to the outlet aperture diameter of the fourth sealing member. All the above aperture diameters are smaller than the pipeline diameter.

[0013] Further technical solution: An annular boss is provided on the outer periphery of the fourth sealing member, and a fourth step is provided on the inner wall of the connecting end. One side of the boss is in contact with the fourth step, and the other side is in contact with the end of the fastener.

[0014] Further technical solution: One end of the third sealing member is clamped with one end of the fourth sealing member.

[0015] Further technical solution: A circlip is provided between the unlocking piston and the joint body.

[0016] Advantages of the present utility model:

[0017] The present utility model provides

[0018] In addition, during the use process, it only needs to insert the pipeline from the unlocking piston, and the operation is very simple. Even in a very narrow space, it can be easily operated. During this process, after the pipeline extends in, the fixing claws are deformed and inclined and are in contact with the outer wall of the pipeline. At this time, it is the first-stage fixation, which makes the pipeline can only move forward and cannot move backward; then as the pipeline enters the sealing assembly, the aperture diameter of the sealing assembly is slightly smaller than the outer diameter of the pipeline. The sealing assembly wraps the outer wall of the pipeline, and the friction force between the outer wall of the pipeline and the inner wall of the sealing assembly makes it difficult for the pipeline to be pulled out in the reverse direction. This is the second-stage fixation, and at the same time, it can play a sealing role to prevent liquid from seeping out between the outer wall of the pipeline and the inner wall of the sealing assembly. In addition, since the end face of the first silicone sealing member also abuts against the end of the sealing assembly, it can also prevent liquid from seeping out between the outer wall of the sealing assembly and the inner wall of the connecting end.

[0019] In addition, transferring all the sealing and fixing parts into the joint reduces the operation steps for the pipeline compared with the traditional installation method, and greatly improves the work efficiency.

[0020] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the drawings

[0021] Figure 1 : A three-dimensional structural diagram of the utility model.

[0022] Figure 2 : A planar cross-sectional view of the present invention.

[0023] Figure 3 : A three-dimensional cross-sectional view of the present invention.

[0024] Figure 4 : Exploded view of the utility model.

[0025] Figure markings: 1-connector body, 11-connecting end, 12-step four, 21-blocking part, 22-seal two, 23-seal three, 24-seal four, 25-fastening annular flange, 26-annular boss, 3-claw, 31-fixing claw, 41-unlocking piston, 42-step three, 51-fastener, 52-step one, 53-step two, 6-circlip. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] Please refer to Figures 1-4 ;

[0028] The coffee machine pipeline conveying joint sealing structure described in the present invention is intended to achieve a better sealing effect and a more convenient installation method to improve production efficiency. It specifically includes a joint body 1. The connection end 11 of the joint body 1 is provided with a space for installing various components. A sealing component and a claw part 3 are fixed in the space. The sealing component is used to fasten and seal the pipeline, and the outlet end of the sealing component is provided with a blocking part 21 that contacts the end of the pipeline. The above components are all provided with a through hole for the pipeline to pass through. During assembly, the sealing component, the claw part 3 and the unlocking piston 41 are sequentially installed therein. The blocking part 21 in this embodiment can be an integrally formed structure with the sealing component, or it can be a separate component, that is, preferably, the blocking part 21 is an independent silicone seal. The seal member 1 and the outer periphery of the silicone seal member 1 respectively contact the inner wall of the connecting end 11 and one end of the sealing component, and the aperture of the silicone seal member 1 is smaller than the aperture of the contacting end of the sealing component; and the outer side of the sealing component also contacts the side of the connecting end 11. In this embodiment, the sealing component can be fixed in the space in any way so that one end thereof contacts the silicone seal member 1, the unlocking piston 41 is movably connected to the connector body 1, and its end contacts the fixed claw 31 of the claw member 3, and the other end extends out of the connector body 1. The unlocking piston 41 cannot be separated from the connector body 1, and the fixed claw 31 is elastic. Therefore, each time the unlocking piston 41 is pressed, the fixed claw 31 will be elastically deformed. After the pressure is released, the fixed claw 31 is reset and the unlocking piston 41 pops out.

[0029] Of course, there is another embodiment, in which the unlocking piston 41 has a larger movable space in the connecting body. When the unlocking piston 41 is pushed in, it will conflict with the fixed claw 31 to cause it to elastically deform. When not in use, the end of the unlocking piston 41 can also be away from the fixed claw 31. These are two different methods that can achieve the same technical effect.

[0030] When in use, the pipeline is inserted from the unlocking piston 41, passing through the claw part 3 and the sealing assembly in turn, and finally the outer periphery of the end of the pipeline is completely in conflict with the end face of the silicone seal 1, and the outlet of the pipeline corresponds to the through hole of the silicone seal 1; in the process of the pipeline being extended, the fixing claw 31 will be deformed and tilted, and conflict with the outer wall of the pipeline. At this time, it is the first level of fixation, which makes the pipeline can only move forward and not backward; then as the pipeline enters the sealing assembly, the aperture of the sealing assembly is slightly smaller than the outer diameter of the pipeline, and the sealing assembly wraps the outer wall of the pipeline. Assuming that the sealing assembly is silicone, the friction between the outer wall of the pipeline and the inner wall of the sealing assembly is used to make it difficult for the pipeline to be pulled out in the opposite direction. This is the second level of fixation, and at the same time it can play a sealing effect to prevent liquid from seeping out from between the outer wall of the pipeline and the inner wall of the sealing assembly. In addition, since the end face of the silicone seal 1 also conflicts with the end of the sealing assembly, it can also prevent liquid from seeping out from between the outer wall of the sealing assembly and the inner wall of the connecting end 11.

[0031] In addition, during use, you only need to insert the pipe from the unlocking piston 41. The operation is very simple and can be easily operated even in a very small space. All sealed parts are transferred to the joint. Compared with the transmission installation method, it reduces the operation steps of the pipe and greatly improves work efficiency.

[0032] When the pipe needs to be removed from the joint, it is only necessary to press the unlocking piston 41 to open the fixing claws 31 and separate them from the outer wall of the pipe, and then pull out the pipe with force.

[0033] Further explanation: the sealing structure described in the present invention can be applied to other connectors of different shapes of coffee machines, or other equipment. In addition, the sealing structure is not limited to being provided at one of the connection ends 11, but can be provided at multiple connection ends 11 of the connector according to actual needs.

[0034] In the embodiment of the present utility model, the fastening method for the unlocking piston 41 can be that an annular step is provided on the inner wall of the connecting end 11, and another annular step matching it is provided on the outer wall of the unlocking piston 41, so as to achieve snap connection. Although this method can realize the movable connection of the unlocking piston 41, it will make the opening of the connecting end 11 become small, making it difficult for other parts to be installed into it. In order to facilitate assembly, the opening of the connecting end 11 needs to be enlarged, but this will change the outer shape of the joint, which will involve the overall layout problem of the coffee machine and the cost is very high. To solve this problem, a fastener 51 is added while maintaining the original appearance, which is used to fix the unlocking piston 41. Then there is no need to set a step on the inner wall of the connecting end 11, so that its opening can have enough space for other parts to enter.

[0035] In addition, the traditional method for the sealing component is to provide an annular step on its outer periphery and a clamping groove on the inner wall of the connecting end 11 for snap connection and fixation. This method is mostly used for the fixation of the sealing ring, but this method is not only difficult to fix, but also prone to displacement and falling off when the pipeline is pulled out. Therefore, the fastener 51 described in this embodiment can realize the fixation of the unlocking piston 41 and the sealing component, killing two birds with one stone.

[0036] More specifically, first, the silica gel seal one and the sealing component are sequentially placed into the connecting end 11, so that one end of the sealing component abuts against the end face of the silica gel seal one. Then, one end of the fastener 51 is inserted into the connecting end 11 and abuts against the other end of the sealing component. At this time, a step one 52 is provided on the outer periphery of the fastener 51 and abuts against the boss on the inner wall of the connecting end 11. Preferably, a flange extends horizontally at the position of the fastener 51 outside the connecting end 11, and this flange abuts against the end of the connecting end 11, which can limit the fastener 51 from penetrating too deeply into the connecting end 11. In this state, both ends of the sealing component are fixed by the pressure of the seal one and the fastener 51 respectively.

[0037] In addition, a channel for the unlocking piston 41 to pass through is provided in the fastener 51, and a step two 53 is provided on the inner wall of the channel. A step three 42 is provided on the outer periphery of the unlocking piston 41, which can abut against the step two 53. The unlocking piston 41 is restricted from being pulled out of the fastener 51 by the step two 53 and the step three 42. In the initial state, one end of the unlocking piston 41 abuts against the fixed claw 31, and then the step three 42 and the step two 53 abut to achieve fixation.

[0038] It should be noted that the above-mentioned step one 52 and step three 42 can be provided with inclined surfaces according to needs to facilitate better snap connection. Preferably, the upper surface of the step three 42 is a plane, as close as possible to the inner wall of the fastener 51, to avoid the unlocking piston 41 from shaking.

[0039] In an embodiment of the present utility model regarding a sealing assembly, a channel for a pipeline to penetrate is provided inside the sealing assembly, and at least one fastening annular flange 25 extending inwards is provided in the channel, so that the sealing assembly forms a "wide - narrow - wide" structure. When the pipeline passes through the fastening annular flange 25, it will narrow and then widen, which can not only achieve a fastening effect but also an effect of increasing the flow rate;

[0040] Further, a conical surface is provided on the side of the fastening annular flange 25 close to the claw member 3, so that the pipeline has a narrowing process and is more likely to pass through the fastening annular flange 25.

[0041] Regarding further expansion description of the sealing assembly, it specifically includes a second seal 22, a third seal 23, and a fourth seal 24 that are sequentially in contact. The fastening annular flange 25 is provided in the third seal 23. The aperture diameter of the fastening annular flange 25 is smaller than the outlet aperture diameter of the fourth seal 24 and the outlet aperture diameter of the second seal 22. The outlet aperture diameter of the second seal 22 is smaller than or equal to the outlet aperture diameter of the fourth seal 24. The above - mentioned aperture diameters are all smaller than the pipeline diameter. It should be noted that conical surfaces should also be provided at the positions of the second seal 22 and the fourth seal 24, which can better guide the pipeline. And there are several designs such as several fastening annular flanges 25 and several conical surfaces in the sealing assembly. From the perspective of production, it is difficult to integrally form, so it is more conducive to production to adopt a split - type and separately form.

[0042] In addition, at least the third seal 23 among the second seal 22, the third seal 23, and the fourth seal 24 is made of silica gel. Under the extrusion of the fastener 51, the second seal 22 and the fourth seal 24 are respectively in close contact with both sides of the third seal 23 to form a seal.

[0043] In this embodiment, an annular boss 26 is provided on the outer periphery of the fourth seal 24, and a fourth step 12 is provided on the inner wall of the connecting end 11. One side of the boss abuts against the fourth step 12, and the other side abuts against the end of the fastener 51. One end of the third seal 23 is snap - connected to one end of the fourth seal 24.

[0044] In an embodiment of the present utility model, a circlip 6 is provided between the unlocking piston 41 and the joint body 1, which plays an effect of preventing accidental unlocking.

[0045] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above - mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0046] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A sealing structure for a pipeline connection of a coffee machine, characterized in that: It includes a joint body (1). A sealing component and a claw member (3) are fixedly arranged inside the connecting end (11) of the joint body (1). The sealing component is used for fastening and sealing the pipeline, and a blocking portion (21) that abuts against the end of the pipeline is provided at the outlet end of the sealing component. The claw is arranged near the other end of the sealing component. The joint body (1) is movably connected with an unlocking piston (41). The end of the unlocking piston (41) abuts against the fixed claw (31) of the claw member (3), and the other end extends out of the joint body (1). A fastener (51) is installed at the opening of the connecting end (11). The end of the fastener (51) abuts against the end of the sealing component. A first step (52) is provided on the outer periphery of the fastener (51) and abuts against the inner wall of the connecting end (11). A channel for the unlocking piston (41) to penetrate is provided inside the fastener (51). A second step (53) is provided on the inner wall of the channel. A third step (42) is provided on the outer periphery of the unlocking piston (41) and can abut against the second step (53).

2. The sealing structure of a pipeline conveying joint of a coffee machine according to claim 1, wherein: The blocking portion (21) is an independent silicone sealing member I.

3. The sealing structure of the pipeline conveying joint of a coffee machine according to claim 1, characterized in that: At least one inwardly extending fastening annular flange (25) is provided inside the sealing component. The fastening annular flange (25) is used to narrow the diameter of the pipeline.

4. A sealing structure for a pipeline conveying joint of a coffee machine according to claim 3, characterized in that: A conical surface is provided on one side of the fastening annular flange (25) close to the claw member (3).

5. A sealing structure for a coffee machine pipeline delivery joint according to any one of claims 3 or 4, characterized in that: The sealing component includes a second sealing member (22), a third sealing member (23), and a fourth sealing member (24) that abut against each other in sequence. The fastening annular flange (25) is arranged in the third sealing member (23). The aperture of the fastening annular flange (25) is smaller than the outlet aperture of the fourth sealing member (24) and the outlet aperture of the second sealing member (22). The outlet aperture of the second sealing member (22) is smaller than or equal to the outlet aperture of the fourth sealing member (24). The above apertures are all smaller than the diameter of the pipeline.

6. The sealing structure of the pipeline conveying joint of a coffee machine according to claim 5, characterized in that: An annular boss (26) is provided on the outer periphery of the fourth sealing member (24). A fourth step (12) is provided on the inner wall of the connecting end (11). One side of the boss abuts against the fourth step (12), and the other side abuts against the end of the fastener (51).

7. A sealing structure for a pipeline conveying joint of a coffee machine according to claim 5, characterized in that: One end of the third sealing member (23) is clamped with one end of the fourth sealing member (24).

8. A sealing structure for a coffee machine pipeline conveying joint according to claim 1, characterized in that: A circlip (6) is provided between the unlocking piston (41) and the joint body (1).

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