Rotary joint with anti-eccentricity mechanism

Abstract

The utility model relates to the field of rotary joints, in particular to a rotary joint with an anti-eccentricity mechanism, which comprises a shell and a central pipe sealing component. The rotating pipe comprises an inner pipe and an outer pipe which are suitable for passing of media with different temperatures; wherein the rotating pipe is arranged in a cavity of the shell, and a mounting groove of the central pipe sealing assembly is formed between a cavity recess of the shell and the outer wall of the rotating pipe; the insertion end of the inner pipe and the insertion end of the outer pipe are each provided with a sealing gasket making contact with equipment using the rotating pipe, so that the concentricity is good when the inner pipe and the outer pipe are installed, and the center pipe sealing assembly is suitable for blocking the outer pipe and the inner pipe; the outer pipe and the inner pipe are concentric; the two sealing gaskets are located at the ends, away from the center pipe sealing assembly, of the inner pipe and the outer pipe. According to the rotary joint with the anti-eccentricity mechanism, the concentricity of the inner pipe and the outer pipe during rotation is improved, and meanwhile, the effect of separating the inner pipe from the outer pipe is improved due to the existence of the sealing gasket.

Description

Technical Field

[0001] This utility model relates to the field of hot and cold rotary joints, and specifically to a rotary joint with an anti-eccentricity mechanism. Background Technology

[0002] A hot and cold rotary tube is an industrial pipe fitting used for heating or cooling equipment. In use, gas or liquid is introduced into the equipment through the inner tube of the hot and cold rotary tube. After the gas or liquid comes into contact with the equipment, its temperature changes and it is discharged from the outer tube. In use, both the inner and outer tubes of the hot and cold rotary tube need to be connected to the equipment.

[0003] When the inner and outer tubes of the commonly used hot and cold rotary tubes are connected to the equipment, they directly abut against the first and second channels of the equipment, which presents a technical problem of eccentricity between the inner and outer tubes. There is an urgent need to design a new rotary joint with an anti-eccentricity mechanism.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] The purpose of this invention is to provide a rotary joint with an anti-eccentricity mechanism to solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rotary joint with an anti-eccentricity mechanism includes:

[0008] The housing includes a central tube sealing assembly;

[0009] A rotating tube, comprising an inner tube and an outer tube suitable for carrying media of different temperatures; wherein...

[0010] The rotating tube is disposed in the cavity of the outer shell, and the cavity of the outer shell and the outer wall of the rotating tube form an installation groove for the central tube sealing assembly.

[0011] Both the inner and outer tubes are equipped with sealing gaskets at their insertion ends to ensure good concentricity during installation.

[0012] In one alternative embodiment, the central tube sealing assembly is adapted to block the outer tube and the inner tube;

[0013] The outer and inner tubes are concentric;

[0014] Both of the sealing gaskets are located at the ends of the inner and outer tubes away from the central tube sealing assembly.

[0015] In one alternative embodiment, the central tube sealing assembly includes a seal and a tensioner, the tensioner contacting one side of the seal and the other side of the seal contacting the sidewall of the mounting groove.

[0016] The outer end of the outer tube extends toward the outer wall of the inner tube to form a cavity in the outer tube, and the outer end of the outer tube contacts a sealing element.

[0017] In one alternative embodiment, the number of the seals is not less than one;

[0018] The tensioning element is a spring assembly, and the tensioning element is located on the outer wall of the outer tube.

[0019] In one alternative embodiment, the number of seals is one;

[0020] The seal is located at the end of the mounting groove.

[0021] In one optional embodiment, the number of the seals is two, and the two seals abut against each other in a sealing manner;

[0022] The seal is located at the end of the mounting groove.

[0023] In one alternative embodiment, the sealing gasket is annular;

[0024] The cross-sectional dimensions of the two sealing gaskets are consistent with the cross-sectional dimensions of the inner and outer tubes to which they are connected.

[0025] Secondly, embodiments of this disclosure also provide a rotary joint with an anti-eccentricity mechanism, comprising:

[0026] The housing includes a central tube sealing assembly;

[0027] A rotating tube, comprising an inner tube and an outer tube suitable for carrying media of different temperatures; wherein...

[0028] The rotating tube is disposed in the cavity of the outer shell, and the cavity of the outer shell and the outer wall of the rotating tube form an installation groove for the central tube sealing assembly.

[0029] Both the inner and outer tubes are equipped with sealing gaskets at their insertion ends to ensure good concentricity during installation.

[0030] The equipment connection part includes a first channel and a second channel for connecting to the inner tube and the outer tube respectively;

[0031] The first channel and the second channel are provided with a first wall and a second wall that abut against the sealing gasket.

[0032] In one alternative embodiment, the central tube sealing assembly is adapted to block the outer tube and the inner tube;

[0033] The outer and inner tubes are concentric;

[0034] Both of the sealing gaskets are located at the ends of the inner and outer tubes away from the central tube sealing assembly.

[0035] The beneficial effects of this utility model are as follows: It provides a rotary joint with an anti-eccentricity mechanism. By using the outer shell, inner tube, outer tube and sealing gasket in cooperation, a rotary joint with an anti-eccentricity mechanism is made to replace the inner tube and outer tube directly abutting the hot and cold rotating tube of the equipment. When the inner tube and outer tube are connected to the equipment, the inner tube and outer tube are inserted into the first channel and the second channel of the equipment, and the sealing gaskets at the ends of the inner tube and outer tube abut against the first wall and the second wall, so as to avoid the inner tube and outer tube from being eccentric and improve the concentricity of the inner tube and outer tube when rotating. At the same time, the presence of the sealing gasket improves the separation effect between the inner tube and the outer tube. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of a rotary joint with an anti-eccentricity mechanism provided in an embodiment of this disclosure.

[0038] Figure 2 for Figure 1 A magnified view of part A in the middle.

[0039] In the diagram: 1. Outer shell; 11. Central tube sealing assembly; 111. Seal; 112. Tensioning element; 12. Mounting groove;

[0040] Rotating tube; 21. Inner tube; 22. Outer tube; 23. Sealing gasket;

[0041] Equipment connection part; 31, first channel; 32, second channel; 33, first wall; 34, second wall. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0044] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0045] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of a feature, step, operation, element, and / or component, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof.

[0046] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0049] refer to Figure 1 and Figure 2At least one embodiment provides a rotary joint with an anti-eccentricity mechanism, comprising: a housing 1, which includes a central tube sealing assembly 11 for sealing a rotary tube 2 to prevent leakage of the medium inside the rotary tube 2, the medium being water or gas; a rotary tube 2, which includes an inner tube 21 and an outer tube 22 suitable for carrying media of different temperatures, serving as a transport channel for media of different temperatures, the flow direction of the medium in the outer tube 22 and the inner tube 21 being F1; wherein the rotary tube 2 is disposed within the cavity of the housing 1 to ensure that the rotary tube 2 can rotate normally, and a mounting groove 12 for the central tube sealing assembly 11 is formed between the recess of the cavity of the housing 1 and the outer wall of the rotary tube 2 to limit the position of the central tube sealing assembly 11; the insertion ends of the inner tube 21 and the outer tube 22 are each provided with a sealing gasket 23 that contacts the equipment using the rotary tube 2, so as to improve the concentricity of the inner tube 21 and the outer tube 22 during installation, and at the same time reduce the friction force when the rotary tube 2 rotates, and improve the concentricity of the inner tube 21 and the outer tube 22.

[0050] In some embodiments, the central tube sealing assembly 11 is adapted to block the outer tube 22 and the inner tube 21 to prevent the exchange of media at different temperatures between them and improve the efficiency of heat transfer between the hot and cold rotating tubes; the outer tube 22 and the inner tube 21 are concentric and are used to fit the shape of the equipment; both sealing gaskets 23 are located at the ends of the inner tube 21 and the outer tube 22 away from the central tube sealing assembly 11 and are used to directly contact the equipment.

[0051] In some embodiments, the central tube sealing assembly 11 includes a seal 111 and a tensioner 112. The tensioner 112 contacts one side of the seal 111, and the other side of the seal 111 contacts the side wall of the mounting groove 12, so that when the seal 11 is working, it prevents the medium in the inner tube 21 and the outer tube 22 from entering the housing 1 or leaving the hot and cold rotating tube. The outer wall end of the outer tube 22 extends toward the outer wall of the inner tube 21 to form a cavity of the outer tube 22, and the outer wall end of the outer tube 22 contacts the seal 111, thereby sealing the outer tube 22.

[0052] In some embodiments, the number of the sealing element 111 is not less than one; the tensioning element 112 is a spring assembly, and the tensioning element 112 is disposed on the outer wall of the outer tube 22 for pushing the sealing element 111 against the side wall of the mounting groove 12.

[0053] In some embodiments, the number of seals 111 is one, and the material of the seal 111 is one or a combination of antimony alloy graphite, tetrafluoroethylene synthetic graphite and resin graphite; the seal 111 is located at the end of the mounting groove 12.

[0054] In some embodiments, there are two seals 111, which abut against each other. The seals 111 are made of one or more of the following materials: antimony alloy graphite, tetrafluoroethylene synthetic graphite, and resin graphite. The seals 111 are located at the end of the mounting groove 12.

[0055] In some embodiments, the sealing gasket 23 is annular and is designed to fit the shape of the rotating tube 2. The sealing gasket 23 is made of one or more of the following materials: antimony alloy graphite, tetrafluoroethylene synthetic graphite, and resin graphite. The cross-sectional dimensions of the two sealing gaskets 23 are the same as the cross-sectional dimensions of the inner tube 21 and the outer tube 22 to which they are connected, in order to prevent the sealing gaskets 23 from partially blocking the inner tube 21 and the outer tube 22, and to prevent the sealing gaskets 23 from being too small and easily worn away.

[0056] In some embodiments, a rotary joint with an anti-eccentricity mechanism includes: a housing 1, which includes a central tube sealing assembly 11 for sealing a rotary tube 2 to prevent leakage of the medium inside the rotary tube 2; a rotary tube 2, which includes an inner tube 21 and an outer tube 22 adapted to carry media of different temperatures, serving as a transport channel for media of different temperatures; wherein the rotary tube 2 is disposed within the cavity of the housing 1 to ensure that the rotary tube 2 can rotate normally, and a mounting groove 12 for the central tube sealing assembly 11 is formed between the recess of the cavity of the housing 1 and the outer wall of the rotary tube 2 to restrict and prevent the position of the central tube sealing assembly 11; the insertion of the inner tube 21 and the outer tube 22... Both ends are provided with sealing gaskets 23 that contact the equipment using the rotating tube 2, so as to ensure good concentricity of the inner tube 21 and the outer tube 22 during installation, and at the same time reduce the friction of the rotating tube 2 during rotation and improve the concentricity of the inner tube 21 and the outer tube 22; the equipment connection part 3 includes a first channel 31 and a second channel 32 for connecting to the inner tube 21 and the outer tube 22 respectively, so that the inner tube 21 and the outer tube 22 are suitable for insertion into the first channel 31 and the second channel 32 to complete the connection between the hot and cold rotating tube and the equipment; the first channel 31 and the second channel 32 are provided with a first wall 33 and a second wall 34 that abut against the sealing gasket 23 for direct contact with the sealing gasket 23.

[0057] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] While this patent document contains numerous details, it should not be construed as limiting any utility model or the scope of the claims, but rather as a description of features of a particular embodiment of a particular utility model. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various functions described in the context of a single embodiment may also be implemented individually in multiple embodiments, or in any suitable sub-combination. Furthermore, although the foregoing features may be described as functioning in certain combinations, or even initially claimed to be so, in some cases one or more features from a combination of claims may be removed from the combination, and a combination of claims may refer to a sub-combination or a variation of a sub-combination.

[0060] Similarly, although the operations are described in a specific order in the accompanying drawings, this should not be construed as requiring the specific order or sequence shown to perform such operations, or all the described operations, in order to obtain the desired result. Furthermore, the separation of various system components in the embodiments of this patent document should not be construed as requiring such separation in all embodiments.

[0061] Only some implementations and examples are described; other implementations, enhancements, and variations can be made based on the content described and illustrated in this patent document.

[0062] While several embodiments are provided in this disclosure, it should be understood that the disclosed systems and methods may be embodied in many other specific forms without departing from the spirit or scope of this disclosure. The present examples are intended to be illustrative rather than restrictive and are not limited to the details given. For example, various elements or components may be combined or integrated into another system, or certain features may be omitted or not implemented.

Claims

1. A rotary joint with an anti-eccentricity mechanism, characterized in that, include: The housing (1) includes a central tube sealing assembly (11); The rotating tube (2) includes an inner tube (21) and an outer tube (22) suitable for carrying media of different temperatures; wherein The rotating tube (2) is disposed in the cavity of the outer shell (1), and the cavity recess of the outer shell (1) and the outer wall of the rotating tube (2) form an installation groove (12) for the central tube sealing assembly (11). The insertion ends of both the inner tube (21) and the outer tube (22) are provided with sealing gaskets (23) that contact the equipment using the rotating tube (2) so that the concentricity of the inner tube (21) and the outer tube (22) is good during installation.

2. The rotary joint with anti-eccentricity mechanism according to claim 1, characterized in that: The central tube sealing assembly (11) is adapted to block the outer tube (22) and the inner tube (21). The outer tube (22) and the inner tube (21) are concentric; Both of the sealing gaskets (23) are located at the ends of the inner tube (21) and outer tube (22) away from the central tube sealing assembly (11).

3. The rotary joint with anti-eccentricity mechanism according to claim 2, characterized in that: The central tube sealing assembly (11) includes a seal (111) and a tensioner (112), the tensioner (112) contacting one side of the seal (111) and the other side of the seal (111) contacting the sidewall of the mounting groove (12); The outer wall end of the outer tube (22) extends toward the outer wall of the inner tube (21) to form the cavity of the outer tube (22), and the outer wall end of the outer tube (22) contacts the sealing element (111).

4. The rotary joint with anti-eccentricity mechanism according to claim 3, characterized in that: The number of the seals (111) is not less than one; The tensioning element (112) is a spring assembly, and the tensioning element (112) is disposed on the outer wall of the outer tube (22).

5. The rotary joint with anti-eccentricity mechanism according to claim 4, characterized in that: The number of the seals (111) is one; The seal (111) is located at the end of the mounting groove (12).

6. The rotary joint with anti-eccentricity mechanism according to claim 4, characterized in that: The number of the sealing elements (111) is two, and the two sealing elements (111) seal against each other; The seal (111) is located at the end of the mounting groove (12).

7. The rotary joint with anti-eccentricity mechanism according to claim 1, characterized in that: The sealing gasket (23) is annular; The cross-sectional dimensions of the two sealing gaskets (23) are consistent with the cross-sectional dimensions of the inner tube (21) and the outer tube (22) to which they are connected.

8. A rotary joint with an anti-eccentricity mechanism, characterized in that, include: The housing (1) includes a central tube sealing assembly (11); The rotating tube (2) includes an inner tube (21) and an outer tube (22) suitable for carrying media of different temperatures; wherein The rotating tube (2) is disposed in the cavity of the outer shell (1), and the cavity recess of the outer shell (1) and the outer wall of the rotating tube (2) form an installation groove (12) for the central tube sealing assembly (11). The insertion ends of both the inner tube (21) and the outer tube (22) are provided with sealing gaskets (23) that contact the equipment using the rotating tube (2) so as to ensure good concentricity of the inner tube (21) and the outer tube (22) during installation; The equipment connection part (3) includes a first channel (31) and a second channel (32) for connecting to the inner tube (21) and the outer tube (22) respectively; The first channel (31) and the second channel (32) are provided with a first wall (33) and a second wall (34) that abut against the sealing gasket (23).

9. The rotary joint with anti-eccentricity mechanism according to claim 8, characterized in that: The central tube sealing assembly (11) is adapted to block the outer tube (22) and the inner tube (21). The outer tube (22) and the inner tube (21) are concentric; Both of the sealing gaskets (23) are located at the ends of the inner tube (21) and outer tube (22) away from the central tube sealing assembly (11).

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