Steam pipe universal joint structure and coffee machine

Abstract

The utility model discloses a steam pipe universal connecting structure discloses coffee machine, wherein steam pipe universal connecting structure includes connecting pipe, connecting joint, universal joint and steam pipe body, and connecting pipe is equipped with first passageway, and connecting joint is connected in one end of connecting pipe, and connecting joint is equipped with the second passageway of intercommunication first passageway, and connecting joint is used for connecting the pressure tube of coffee machine, and universal joint includes ball head and the connecting portion of connecting in ball head, and ball head swing joint is in connecting pipe, and universal joint is equipped with the third passageway of intercommunication first passageway, and the both ends of third passageway respectively penetrate ball head and connecting portion, and the limit structure between ball head and connecting pipe is equipped with, and limit structure is used for limiting ball head and moves along the axial movement of connecting pipe, and steam pipe body is connected in connecting portion, and ball head does not rub with the pressure tube of coffee machine, can reduce the wear and tear of universal ball head to improve the use reliability of coffee machine.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a universal steam pipe connection structure and a coffee machine. Background Technology

[0002] The existing steam hose universal joint connection structure of coffee machines generally involves directly fitting the universal joint onto one end of the steam hose. The universal joint is then connected to the pressure-resistant hose of the coffee machine. Because the steam hose rotates frequently during use, the universal joint wears down, and steam can easily leak from the gap between the universal joint and the pressure-resistant hose, affecting the reliability of the coffee machine. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a universal steam pipe connection structure, which can improve the reliability of coffee machines.

[0004] This utility model also proposes a coffee machine having the above-mentioned universal connection structure for steam pipes.

[0005] The steam pipe universal connection structure according to a first aspect embodiment of the present invention includes:

[0006] The connecting pipe is equipped with a first channel;

[0007] A connecting connector is attached to one end of the connecting pipe. The connecting connector has a second channel that communicates with the first channel. The connecting connector is used to connect to the pressure-resistant pipe of the coffee machine.

[0008] A universal joint includes a ball head and a connecting portion connected to the ball head. The ball head is movably connected to the connecting tube. The universal joint has a third channel communicating with the first channel. The two ends of the third channel pass through the ball head and the connecting portion, respectively. A limiting structure is provided between the ball head and the connecting tube. The limiting structure is used to restrict the ball head from moving axially along the connecting tube.

[0009] The steam pipe body is connected to the connecting part.

[0010] The universal connection structure for steam pipes according to the first aspect of the present invention has at least the following beneficial effects:

[0011] When the coffee machine is working, the steam in the pressure-resistant pipe passes through the first, second, and third channels in sequence, and finally exits from the steam pipe. By movably installing the ball head inside the connecting pipe, the ball head can swing omnidirectionally relative to the connecting pipe under the action of the limiting structure. Since the ball head is set separately from the connecting joint, the ball head is not connected to the pressure-resistant pipe. When the steam pipe body rotates, the ball head does not rub against the pressure-resistant pipe of the coffee machine, which can reduce the wear of the omnidirectional ball head and thus improve the reliability of the coffee machine.

[0012] According to some embodiments of the present invention, the limiting structure includes a first limiting member and a second limiting member, the first limiting member abutting against the side of the ball head facing the connecting joint, and the second limiting member abutting against the side of the ball head away from the connecting joint.

[0013] According to some embodiments of the present invention, the first limiting member is provided with a spherical groove, the wall of the spherical groove abuts against the outer peripheral surface of the ball head, and the curvature of the wall of the spherical groove matches the curvature of the outer peripheral surface of the ball head.

[0014] According to some embodiments of the present invention, the first limiting member can move along the axial direction of the connecting pipe, and an elastic member is provided between the first limiting member and the connecting joint.

[0015] According to some embodiments of the present invention, an adjustment structure is provided between the connecting joint and the connecting pipe, and the adjustment structure is used to adjust the distance between the connecting joint and the first limiting member.

[0016] According to some embodiments of the present invention, the adjustment structure includes an internal thread portion provided on the connecting pipe and an external thread portion provided on the connecting joint, wherein the internal thread portion and the external thread portion are matched so that the connecting pipe and the connecting joint are threadedly connected.

[0017] According to some embodiments of the present invention, the second limiting member is a first sealing ring, and the side wall of the second channel is provided with a positioning groove, and the first sealing ring is installed in the positioning groove.

[0018] According to some embodiments of the present invention, a second sealing ring is provided between the connecting joint and the connecting pipe.

[0019] According to some embodiments of this utility model, the steam pipe body is fitted with a protective component.

[0020] The coffee machine according to a second aspect of the present invention includes the universal steam pipe connection structure described in the above embodiments.

[0021] The coffee machine according to the second aspect embodiment of the present invention has at least the following beneficial effects:

[0022] When the coffee machine is working, the steam in the pressure-resistant pipe passes through the first, second, and third channels in sequence, and finally exits from the steam pipe. By movably installing the ball head inside the connecting pipe, the ball head can swing omnidirectionally relative to the connecting pipe under the action of the limiting structure. Since the ball head is set separately from the connecting joint, the ball head is not connected to the pressure-resistant pipe. When the steam pipe body rotates, the ball head does not rub against the pressure-resistant pipe of the coffee machine, which can reduce the wear of the omnidirectional ball head and thus improve the reliability of the coffee machine.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the internal structure of the universal connection structure for the steam pipe according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0027] Figure 3 This is an exploded view of the universal connection structure of the steam pipe according to an embodiment of the present invention.

[0028] Figure label:

[0029] Connecting pipe 100, first channel 110, positioning groove 120, connecting joint 200, second channel 210, universal joint 300, third channel 301, ball head 310, connecting part 320, steam pipe body 400, protective part 410, first limiting part 510, spherical groove 511, clearance channel 512, second limiting part 520, elastic part 530, second sealing ring 540. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] In related technologies, the universal ball joint connection structure of the steam pipe of a coffee machine is generally to directly attach the universal ball joint to one end of the steam pipe. The universal ball joint is connected to the pressure-resistant pipe of the coffee machine. Because the steam pipe rotates frequently during use, the universal ball joint will wear, and steam is prone to leak from the fit gap between the universal ball joint and the pressure-resistant pipe, affecting the reliability of the coffee machine.

[0035] Reference Figures 1 to 3According to a first aspect embodiment of the present invention, a universal steam pipe connection structure includes a connecting pipe 100, a connecting joint 200, a universal joint 300, and a steam pipe body 400. The connecting pipe 100 has a first channel 110. The connecting joint 200 is connected to one end of the connecting pipe 100 and has a second channel 210 communicating with the first channel 110. The connecting joint 200 is used to connect to the pressure-resistant pipe of a coffee machine. The universal joint 300 includes a ball head 310 and a connecting portion 320 connected to the ball head 310. The ball head 310 is movably connected inside the connecting pipe 100. The machine is provided with a third channel 301 that connects to the first channel 110. The two ends of the third channel 301 pass through the ball head 310 and the connecting part 320, respectively. A limiting structure is provided between the ball head 310 and the connecting pipe 100. The limiting structure is used to restrict the ball head 310 from moving axially along the connecting pipe 100. The steam pipe body 400 is connected to the connecting part 320. In this way, the steam pipe body 400 is not fixedly connected to the connecting joint 200. When the steam pipe body 400 rotates, the ball head 310 does not rub against the pressure pipe of the coffee machine, which can reduce the wear of the universal ball head and thus improve the reliability of the coffee machine.

[0036] For example, when the coffee machine is working, the steam in the pressure-resistant pipe passes through the first channel 110, the second channel 210, and the third channel 301 in sequence, and finally is ejected from the steam pipe. By movably installing the ball head 310 in the connecting pipe 100, under the action of the limiting structure, the ball head 310 can swing in all directions relative to the connecting pipe 100. Since the ball head 310 is separated from the connecting joint 200, the ball head 310 is not connected to the pressure-resistant pipe. When the steam pipe body 400 rotates, the ball head 310 does not rub against the pressure-resistant pipe of the coffee machine, which can reduce the wear of the universal ball head and thus improve the reliability of the coffee machine.

[0037] For example Figure 2 As shown, in some embodiments of this utility model, the limiting structure includes a first limiting member 510 and a second limiting member 520. The first limiting member 510 abuts against the side of the ball head 310 facing the connecting joint 200, and the second limiting member 520 abuts against the side of the ball head 310 away from the connecting joint 200. This can restrict the ball head 310 from moving axially along the connecting pipe 100, so that the ball head 310 can swing in all directions relative to the connecting pipe 100.

[0038] For example, the first limiting member 510 and the second limiting member 520 are arranged opposite each other along the axial direction of the connecting pipe 100. The first limiting member 510 is provided with a clearance channel 512. The steam in the second channel 210 enters the first channel 110 through the clearance channel 512. Since the first limiting member 510 abuts against the side of the ball head 310 facing the connecting joint 200, the first limiting member 510 can restrict the ball head 310 from moving in the direction close to the connecting joint 200. The second limiting member 520 abuts against the side of the ball head 310 away from the connecting joint 200, the second limiting member 520 can restrict the ball head 310 from moving in the direction away from the connecting joint 200. It can restrict the ball head 310 from moving along the axial direction of the connecting pipe 100, so that the ball head 310 can swing omnidirectionally relative to the connecting pipe 100.

[0039] For example Figure 2 As shown, in some embodiments of this utility model, the first limiting member 510 is provided with a spherical groove 511. The wall of the spherical groove 511 is a spherical structure. The wall of the spherical groove 511 abuts against the outer peripheral surface of the ball head 310, and the curvature of the wall of the spherical groove 511 matches the curvature of the outer peripheral surface of the ball head 310. That is, the contact between the spherical groove 511 and the ball head 310 is a surface contact, which can increase the contact area between the first limiting member 510 and the ball head 310, thereby improving the rotational stability of the universal joint 300.

[0040] As another implementation, the spherical groove 511 can also be replaced by an abutting plane, which abuts against the outer peripheral surface of the ball head 310. That is, the contact between the spherical groove 511 and the ball head 310 is a point contact, which can also restrict the axial movement of the ball head 310 along the connecting pipe 100. This is not restricted here.

[0041] In some embodiments of this utility model, the first limiting member 510 can move along the axial direction of the connecting pipe 100, and an elastic member 530 is provided between the first limiting member 510 and the connecting joint 200. The elastic member 530 can apply force to the first limiting member 510 so that the first limiting member 510 abuts against the ball head 310, which can buffer the ball head 310 and facilitate fixing the ball head 310.

[0042] For example, the elastic element 530 is a compression spring or a rubber component that can undergo axial elastic deformation. One end of the elastic element 530 abuts against the first limiting element 510, and the other end of the elastic element 530 abuts against the connecting joint 200. The elastic element 530 can apply force to the first limiting element 510 so that the first limiting element 510 abuts against the ball head 310, which can buffer the ball head 310 and facilitate the fixation of the ball head 310.

[0043] As another implementation, the elastic member 530 may also be disposed between the connecting pipe 100 and the first limiting member 510, which is not limited here.

[0044] For example Figure 2 As shown, in some embodiments of this utility model, an adjustment structure is provided between the connecting joint 200 and the connecting pipe 100. The adjustment structure is used to adjust the distance between the connecting joint 200 and the first limiting member 510, and can flexibly adjust the force required to rotate the steam pipe body 400.

[0045] In some embodiments of this utility model, the adjustment structure includes an internal thread portion provided on the connecting pipe 100 and an external thread portion provided on the connecting joint 200. The internal thread portion and the external thread portion are matched so that the connecting pipe 100 and the connecting joint 200 are threadedly connected. The distance between the connecting joint 200 and the first limiting member 510 can be adjusted, and the force required to rotate the steam pipe body 400 can be flexibly adjusted.

[0046] For example, when it is necessary to increase the force required to rotate the steam pipe body 400, the user can rotate the connecting joint 200 to move it closer to the universal joint 300, thereby increasing the deformation of the elastic element 530 and increasing the clamping force of the first limiting element 510. When it is necessary to decrease the force required to rotate the steam pipe body 400, the user can rotate the connecting joint 200 to move it away from the universal joint 300, thereby reducing the deformation of the elastic element 530 and decreasing the clamping force of the first limiting element 510. The force required to rotate the steam pipe body 400 can be flexibly adjusted, making it convenient for the user.

[0047] It should be noted that the positions of the internal thread and the external thread can be interchanged, that is, the internal thread is located on the connecting joint 200 and the external thread is located on the connecting pipe 100, without any restrictions.

[0048] As another implementation, the adjustment structure can also be a pin adjustment structure. For example, the pin adjustment structure includes a pin provided in the connecting joint 200 and a plurality of through holes provided in the connecting pipe 100. The pin is inserted into the corresponding through hole. The user can insert the pin into the corresponding through hole by plugging and unplugging. The distance between the connecting joint 200 and the first limiting member 510 can also be adjusted. This will not be described in detail here.

[0049] In some embodiments of this utility model, the second limiting member 520 is the first sealing ring, and the side wall of the second channel 210 is provided with a positioning groove 120. The first sealing ring is installed in the positioning groove 120, which facilitates the installation of the second limiting member 520 and improves the sealing performance between the universal joint 300 and the connecting pipe 100.

[0050] For example, the positioning groove 120 has an annular structure. The first sealing ring is installed in the positioning groove 120 and abuts against the side wall of the positioning groove 120, which facilitates the installation of the second limiting member 520 and improves the sealing performance between the universal joint 300 and the connecting pipe 100.

[0051] In some embodiments of this utility model, a second sealing ring 540 is provided between the connecting joint 200 and the connecting pipe 100, which can improve the sealing performance between the connecting joint 200 and the connecting pipe 100.

[0052] For example Figure 1 , Figure 3 As shown, in some embodiments of this utility model, the steam pipe body 400 is fitted with a protective member 410. The user can pull the protective member 410 to make the steam pipe body 400 swing in all directions, which can prevent the user from being burned by the steam pipe body 400, thereby improving the safety of using the coffee machine.

[0053] Reference Figure 1 , Figure 2 According to the second aspect of the present invention, the coffee machine includes the steam pipe universal connection structure of the first aspect of the present invention. The steam pipe body 400 is not fixedly connected to the connection joint 200. When the steam pipe body 400 rotates, the ball head 310 does not rub against the pressure-resistant pipe of the coffee machine, which can reduce the wear of the universal ball head and thus improve the reliability of the coffee machine.

[0054] For example, when the coffee machine is working, the steam in the pressure-resistant pipe passes through the first channel 110, the second channel 210, and the third channel 301 in sequence, and finally is ejected from the steam pipe. By movably installing the ball head 310 in the connecting pipe 100, under the action of the limiting structure, the ball head 310 can swing in all directions relative to the connecting pipe 100. Since the ball head 310 is separated from the connecting joint 200, the ball head 310 is not connected to the pressure-resistant pipe. When the steam pipe body 400 rotates, the ball head 310 does not rub against the pressure-resistant pipe of the coffee machine, which can reduce the wear of the universal ball head and thus improve the reliability of the coffee machine.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A steam pipe universal joint structure characterized by comprising: include: The connecting pipe (100) is provided with a first channel (110); A connector (200) is connected to one end of the connector (100). The connector (200) is provided with a second channel (210) that communicates with the first channel (110). The connector (200) is used to connect to the pressure-resistant pipe of the coffee machine. A universal joint (300) includes a ball head (310) and a connecting portion (320) connected to the ball head (310). The ball head (310) is movably connected to the connecting tube (100). The universal joint (300) is provided with a third channel (301) communicating with the first channel (110). The two ends of the third channel (301) pass through the ball head (310) and the connecting portion (320) respectively. A limiting structure is provided between the ball head (310) and the connecting tube (100). The limiting structure is used to restrict the ball head (310) from moving axially along the connecting tube (100). The steam pipe body (400) is connected to the connecting part (320).

2. The steam tube universal joint structure according to claim 1, characterized by The limiting structure includes a first limiting member (510) and a second limiting member (520). The first limiting member (510) abuts against the side of the ball head (310) facing the connecting joint (200), and the second limiting member (520) abuts against the side of the ball head (310) away from the connecting joint (200).

3. The steam tube universal joint structure according to claim 2, characterized by The first limiting member (510) is provided with a spherical groove (511), the wall of the spherical groove (511) abuts against the outer peripheral surface of the ball head (310), and the curvature of the wall of the spherical groove (511) matches the curvature of the outer peripheral surface of the ball head (310).

4. The steam tube universal joint structure according to claim 2, characterized by The first limiting member (510) can move along the axial direction of the connecting pipe (100), and an elastic member (530) is provided between the first limiting member (510) and the connecting joint (200).

5. The steam tube universal joint structure according to claim 4, characterized by An adjustment structure is provided between the connecting joint (200) and the connecting pipe (100), and the adjustment structure is used to adjust the distance between the connecting joint (200) and the first limiting member (510).

6. The steam tube universal joint structure according to claim 5, wherein The adjustment structure includes an internal thread portion on the connecting pipe (100) and an external thread portion on the connecting joint (200), wherein the internal thread portion and the external thread portion are matched to make the connecting pipe (100) and the connecting joint (200) threadedly connected.

7. The steam tube universal joint structure according to claim 2, characterized by The second limiting member (520) is the first sealing ring, and the side wall of the second channel (210) is provided with a positioning groove (120), and the first sealing ring is installed in the positioning groove (120).

8. The steam tube universal joint structure according to claim 1, characterized by A second sealing ring (540) is provided between the connecting joint (200) and the connecting pipe (100).

9. The steam tube universal joint structure according to claim 1, wherein The steam pipe body (400) is fitted with a protective component (410).

10. A coffee maker characterized in that, Includes the steam pipe universal connection structure as described in any one of claims 1 to 9.

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