Adjustable steam valve of coffee machine

Abstract

The utility model discloses an adjustable steam valve of a coffee machine, which comprises a joint body, the joint body is at least provided with two connecting ends communicated with each other and a control end, and an adjusting component is mounted in the control end; the adjusting assembly comprises an adjusting opening and a rotating rod which are eccentrically arranged; the rotating rod penetrates into the control end and is rotationally connected with the control end, a sealing structure is arranged between the rotating rod and the control end, a first abutting piece is arranged at the end of the rotating rod, the first abutting piece is eccentrically provided with a first communicating part, and the first communicating part is communicated with an inner cavity of the connector body; the adjusting opening is formed in the end portion of one connecting end, the end portion of the connecting end abuts against the first abutting piece, the first communicating portion of the abutting piece can correspond to the adjusting opening, the use mode of the steam valve is the same as that of a product in the prior art, and opening and adjusting of steam are achieved by rotating the rotating rod. However, the mode is achieved by changing the relative position of the first communicating part and the adjusting opening instead of a threaded mode, hard friction cannot exist between the rotating rod and the connector body, therefore, chippings cannot be generated, that is, impurities cannot be discharged together with steam, and the steam connector is cleaner and more sanitary.

Description

Technical Field

[0001] The utility model belongs to the technical field of switch valves, and particularly relates to an adjustable steam valve for a coffee machine. Background Art

[0002] With the rise of the coffee trend in China, the demand for coffee machines is increasing. Commercial coffee machines or high-end coffee machines for personal use all have the function of outputting high-pressure steam and can also adjust the size of the steam. Therefore, a steam valve with an adjustment function is provided in the coffee machine. The current steam valves applied in coffee machines are shown in the technical solutions of the published technical documents "CN215371105U, a three-way valve for a coffee machine" and "CN207544919U, a steam valve for a coffee machine". They have common characteristics. The adjustment method basically relies on threads. "The adjusting rod is provided with external threads, and internal threads are provided in the steam valve body. The adjusting rod and the steam valve body are connected by mutual cooperation of the external threads and the internal threads." Hold the knob part by hand and then rotate it to make the adjusting rod move away from the steam sealing ring, so that the water inlet and air inlet and the water outlet and air outlet II are in a through state.

[0003] Using this solution will not cause problems at the beginning of use, but each rotation will cause wear to the threads. Frequent use will cause the thread teeth to change and become loose, and it can no longer be accurately adjusted. Secondly, the valves are basically made of metal materials, and the friction between the rotating thread teeth will generate metal debris, which is easy to fall into the steam channel and be carried out together. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable steam valve for a coffee machine 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] An adjustable steam valve for a coffee machine includes a joint body. The joint body has at least two interconnected connection ends and a control end, and an adjustment component is installed in the control end.

[0007] The adjustment component includes an eccentric adjustment opening and a rotating rod.

[0008] The rotating rod penetrates into the control end and is rotatably connected thereto. A sealing structure is provided between them. A first contact member is provided at the end of the rotating rod. The first contact member is eccentrically provided with a first communication portion, and the first communication portion communicates with the inner cavity of the joint body.

[0009] The adjustment opening is provided at the end of one of the connection ends. The end of this connection end abuts against the first contact member, and the first communication portion of the contact member can correspond to the adjustment opening.

[0010] Further technical solution: A sleeve is fixedly installed in the control end. The sleeve is hermetically connected to the inner wall of the control end. A second abutting member is provided at the end of the sleeve. The adjustment opening is provided on the second abutting member. A sealing member is connected to the end face of the second abutting member. The sealing member is fixedly installed at the end of the connection end. The other side of the second abutting member abuts against the first abutting member. The first abutting member is located inside the sleeve, and there is a gap between the two. A second communication part is provided on the sleeve.

[0011] Further technical solution: The first abutting member or / and the second abutting member is made of ceramic or composite ceramic material.

[0012] Further technical solution: The joint body is made of plastic material.

[0013] Further technical solution: A first step is provided at the end of the rotating rod close to the first abutting member. A second step matching with the first step is provided inside the sleeve.

[0014] Further technical solution: There is a gap between the outer side of one end of the sleeve close to the second communication part and the joint body, and the gap communicates with the second communication part.

[0015] Further technical solution: The sleeve and the joint body are fixed by snap connection.

[0016] Further technical solution: The adjustment opening is semi-circular and gradually becomes wider from narrow to wide.

[0017] Further technical solution: The channel inside the connection end gradually expands from inside to outside.

[0018] Further technical solution: A limiting structure for restricting the rotation range is provided between the rotating rod and the sleeve.

[0019] Advantages of the present utility model:

[0020] The steam valve of the present utility model has the same usage method as the products in the prior art. It also realizes the opening and adjustment of steam by rotating the rotating rod. However, it does not rely on the thread method, but by changing the relative positions of the first communication part and the adjustment opening. There will be no hard friction between the rotating rod and the joint body, so no debris will be generated, that is, no impurities will be discharged together with the steam, which is cleaner and more hygienic.

[0021] In addition, the axial position of the rotating rod and the connection body will not change. Relying on the damping provided by the sealing structure can maintain that the rotating rod does not loosen, so that the steam valve maintains the effect of precise adjustment.

[0022] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the drawings

[0023] Figure 1 : Three-dimensional structure diagram of the present utility model.

[0024] Figure 2 : Three-dimensional sectional view of the present utility model.

[0025] Figure 3 : Exploded view of the present utility model.

[0026] Figure 4 : Disassembly diagram of the rotating rod and sleeve of the present utility model.

[0027] Figure 5 : Schematic diagram of the steam regulation process of the present utility model.

[0028] Reference numerals in the drawings: 1 - joint body, 11 - connection end, 12 - control end, 2 - adjustment assembly, 21 - rotating rod, 221 - first contact member, 222 - first communication portion, 231 - sleeve, 232 - second communication portion, 241 - second contact member, 242 - adjustment opening, 25 - seal, 261 - first step, 262 - second step, 27 - patterned keycap, 281 - notch, 282 - flange. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0030] Please refer to Figures 1-5 ;

[0031] The steam valve of the present utility model provides an adjustment method different from the prior art, which can maintain rotational adjustment and will not generate impurities such as metal chips, avoiding accidents; specifically, it includes a joint body 1, the joint body 1 has at least two mutually communicating connection ends 11, and a control end 12. Assuming the joint body 1 is a three-way joint, then two of the connection ends 11 are communicated with the steam pipe, and the remaining end is used as the installation part of the control end 12. At this time, the adjustment assembly 2 can be arranged relative to the input end or the output end, and the same technical effect can be achieved. If the joint body 1 is a multi-way joint according to other requirements, for example, a four-way joint, then three of the connection ends 11 are communicated with the steam pipe, and the remaining end is used as the installation part of the control end 12. At this time, the adjustment assembly 2 is arranged relative to the output end, and the flow rate of the output end is controlled to achieve the purpose of controlling the output quantity;

[0032] In this embodiment, the adjustment component 2 includes an eccentrically arranged adjustment opening 242 and a rotating rod 21, wherein the rotating rod 21 penetrates from the control end 12 and is rotatably connected thereto, and a sealing structure is provided between the two. Of course, the rotating rod 21 cannot slide relative to the joint body 1 after installation, and can only rotate; the sealing structure in this embodiment can be a silicone tube sleeve arranged on the rotating rod 21, or a plurality of sealing rings are arranged at intervals on the rotating rod 21. No matter which method is adopted, the sealing effect can be achieved. It should be noted that no matter how many connections the joint body 1 has, The connecting end 11 is located in the connector body 1 and has an intersection position. The end of the rotating rod 21 is provided with a resistance piece 221. The resistance piece 221 is eccentrically provided with a connecting portion 222. The resistance piece 221 is located at the intersection point. The adjusting opening 242 is provided at the end of one of the connecting ends 11. Preferably, the connecting end 11 is the steam input end. The end of the connecting end 11 abuts against the resistance piece. The connecting portion 222 of the resistance piece 221 can correspond to the adjusting opening 242. Of course, in order to prevent air leakage, a sealing ring can be provided to abut against the resistance piece 221.

[0033] In the initial state, the abutment 221 abuts against the end of the connection end 11. At this time, the adjustment opening 242 and the connecting portion 222 are in a misaligned state, that is, the steam cannot be guided from one connection end 11 to the other connection end 11, and are in a closed state. When it is needed, the rotating rod 21 is manually rotated to make the abutment 221 rotate accordingly. When the connecting portion 222 of the abutment 221 corresponds to the adjustment opening 242, the two connection ends 11 are connected, and the steam can be guided from one connection end 11 to the other connection end 11. Under the limitation of the sealing structure, there will be no leakage. In this embodiment, the adjustment of the steam size lies in the shape design of the adjustment opening 242. Specifically, the shape of the adjustment opening 242 is an arc trajectory, and the width transitions from narrow to wide. The size of the connecting portion 222 remains unchanged. When the connecting portion is in a narrower position of the adjustment opening 242, the steam flow is smaller, and when it is in a wider position, the steam flow is larger.

[0034] The steam valve of the utility model is used in the same way as the products in the prior art, and the opening and adjustment of steam are also achieved by rotating the rotating rod 21, but it does not rely on the threaded method, but is achieved by changing the relative position of the connecting part 222 and the adjustment opening 242. There is no hard friction between the rotating rod 21 and the joint body 1, so no debris will be generated, that is, no impurities will be discharged together with the steam, which is cleaner and more hygienic.

[0035] In addition, the axial position of the rotating rod 21 and the connection body will not change, and the damping feeling provided by the sealing structure can maintain the rotating rod 21 from loosening, so that the steam valve can maintain the effect of precise adjustment.

[0036] In the above-described embodiment, the adjusting opening 242 can be integrally formed with the joint body 1, specifically by a high-precision CNC machine tool, but the cost is relatively high; the present utility model provides another embodiment for the formation of the adjusting opening 242;

[0037] In this embodiment, the adjusting opening 242 is eccentrically provided in a second abutting member 241, the second abutting member 241 is fixed to the end of the sleeve 231, and the sleeve 231 is fixed to the control end 12, and the sleeve 231 is hermetically connected to the inner wall of the control end 12; preferably, the sleeve 231 is snap-fixed to the joint body 1; that is, there is no need to integrally form the adjusting opening 242 in the joint body 1. Usually, the channel of the connecting end 11 is centered, which can reduce the manufacturing time and cost. A sealing member 25 is connected to the end face of the second abutting member 241, the sealing member 25 is fixed to the end of the connecting end 11, the channel of the connecting end 11 communicates with the adjusting opening 242, and the other side of the second abutting member 241 abuts against the first abutting member 221. The rotating rod 21 passes through the sleeve 231 and is connected to the first abutting member 221. The first abutting member 221 is located in the sleeve 231, and there is a gap between the two. A second communicating portion 232 is provided on the sleeve 231; preferably, a first step 261 is provided at the end of the rotating rod 21 close to the first abutting member 221, and a second step 262 cooperating with the first step 261 is provided in the sleeve 231. The first abutting member 221 at the end of the rotating rod 21 abuts against the second abutting member 241, and the retreat of the rotating rod 21 is prevented by the first step 261 and the second step 262. In this way, the axial position of the rotating rod 21 can be limited, and the sealing between the first abutting member 221 and the second abutting member 241 is maintained.

[0038] When the adjusting opening 242 corresponds to the first communicating portion 222, steam will enter the gap through these two parts. The second communicating portion 232 in this embodiment can directly correspond to the channel in another connecting end 11. After the steam passes through the gap and reaches the second communicating portion 232, it enters the channel. Of course, the setting of the gap can also prevent the first abutting member 221 from rubbing against the inner wall of the sleeve 231 during rotation.

[0039] Further, there is a gap between the outer side of one end of the sleeve 231 close to the second communicating portion 232 and the joint body 1, and the gap communicates with the second communicating portion 232, that is, the steam coming out of the second communicating portion 232 will enter the gap, and this gap is located at the intersection of all the connecting ends 11. If there are multiple connecting ends 11, the steam can be better distributed.

[0040] Preferably, the joint body 1 is made of plastic material, which can be integrally formed by injection molding, can replace the traditional metal material for production, greatly reduces the production cost. The traditional use of metal materials for production also requires the use of a CNC machine tool for processing, with a very high cost and complex processes.

[0041] In addition, the first abutting member 221 and / or the second abutting member 241 are made of composite ceramic material. The hardness of the ceramic composite material is very high, usually between 1000HV and 1500HV. It has the advantages of high melting point, high hardness, high wear resistance, oxidation resistance, etc., which greatly extends the service life of the steam valve.

[0042] In the present utility model, the adjusting opening is in a semi-circular shape and gradually becomes wider from narrow to wide, while the size of the first communicating portion remains unchanged, that is, when the first communicating portion transitions from the narrow to the wide of the adjusting opening, the steam volume gradually increases, and vice versa, when transitioning from wide to narrow, the steam volume gradually decreases.

[0043] In the embodiment of the present utility model, a patterned keycap 27 is provided at one end of the rotating rod 21 away from the first abutting member 221, which can be used for installing an external knob or directly used.

[0044] The channel inside the connecting end 11 gradually expands from inside to outside, which is beneficial to increasing the flow rate when steam is output.

[0045] In this embodiment, a limiting structure for restricting the rotation range is provided between the rotating rod 21 and the sleeve 231. Specifically, it can be a notch 281 provided on the side wall of the rotating rod 21 and a flange 282 provided on the inner wall of the sleeve 231. The flange 282 is placed in the notch 281, and the flange 282 can abut against both sides of the notch 281. The rotation range is slightly wider than the adjusting opening 242 to achieve the complete dislocation of the adjusting opening 242 and the first communicating portion 222, that is, to achieve closing.

[0046] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above 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, in any aspect, the embodiments should be regarded as exemplary and non-limiting. 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.

[0047] 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. An adjustable steam valve for a coffee machine, comprising a joint body (1), the joint body having at least two interconnected connection ends (11) and a control end (12), wherein an adjustment assembly (2) is installed in the control end (12), and is characterized in that: The adjustment assembly (2) includes an eccentric adjustment opening (242) and a rotating rod (21); The rotating rod (21) passes through and is rotatably connected to the control end (12), and a sealing structure is provided therebetween. A first abutting member (221) is provided at the end of the rotating rod (21), and a first communicating portion (222) is eccentrically provided on the first abutting member (221), and the first communicating portion (222) communicates with the inner cavity of the joint body (1); The adjustment opening (242) is provided at the end of one of the connection ends (11), and the end of this connection end (11) abuts against the first abutting member (221), and the first communicating portion (222) of the abutting member can correspond to the adjustment opening (242).

2. The adjustable steam valve for a coffee machine according to claim 1, characterized in that: A sleeve (231) is fixedly provided in the control end (12), the sleeve (231) is sealingly connected to the inner wall of the control end (12), a second abutting member (241) is provided at the end of the sleeve (231), the adjustment opening (242) is provided on the second abutting member (241), a sealing member (25) is connected to the end face of the second abutting member (241), the sealing member (25) is fixedly provided at the end of the connection end (11), the other side of the second abutting member (241) abuts against the first abutting member (221), the first abutting member (221) is located inside the sleeve (231), and there is a gap between the two, and a second communicating portion (232) is provided on the sleeve (231).

3. An adjustable steam valve for a coffee machine according to claim 1, characterized in that: The first abutting member (221) and / or the second abutting member (241) is made of ceramic or composite ceramic material.

4. The adjustable steam valve of a coffee machine according to claim 1, characterized in that: The joint body (1) is made of plastic material.

5. The adjustable steam valve for a coffee machine according to claim 2, characterized in that: A first step (261) is provided at the end of the rotating rod (21) close to the first abutting member (221), and a second step (262) for cooperating with the first step (261) is provided inside the sleeve (231).

6. The adjustable steam valve of a coffee machine according to claim 2, characterized in that: There is a gap between the outer side of one end of the sleeve (231) close to the second communicating portion (232) and the joint body (1), and the gap communicates with the second communicating portion (232).

7. An adjustable steam valve for a coffee machine according to claim 2, characterized in that: The sleeve (231) is fixedly connected to the joint body (1) by snap connection.

8. An adjustable steam valve for a coffee machine according to claim 1, characterized in that: The adjustment opening (242) is semi-circular and gradually becomes wider from narrow to wide.

9. An adjustable steam valve for a coffee machine according to claim 1, characterized in that: The channel inside the connection end (11) gradually expands from inside to outside.

10. The adjustable steam valve of a coffee machine according to claim 2, characterized in that: A limiting structure for restricting the rotation range is provided between the rotating rod (21) and the sleeve (231).

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