Soft and hard metal sealing connection structure

Abstract

The utility model discloses a soft and hard metal sealing connection structure, which belongs to the technical field of lubricating pipeline joints, and comprises a base body, an insertion connection part and a sleeve connection part, one end part of the base body is provided with the insertion connecting part, and the other end part of the base body is provided with the sleeving connecting part; the insertion connecting part is communicated with an inner cavity of the sleeving connecting part, and the inner wall surface of the insertion connecting part and the outer wall surface of the sleeving connecting part are smooth surfaces. According to the soft and hard metal sealing connection structure, sealing connection between different parts is achieved through elastic or plastic deformation of materials; therefore, the technical problem of how to improve the installation simplicity and stability of the lubricating pipeline joint is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of lubrication pipe joints, and in particular to a soft and hard metal sealing connection structure. Background Technology

[0002] Lubrication pipe joints are an important component in mechanical connections, primarily used to transport lubricating grease or introduce compressed air into machinery for cleaning, thereby improving operational efficiency and lifespan. For example, by introducing lubricating grease or low-viscosity liquids, these joints provide lubrication protection to mechanical components, reducing friction and wear, lowering operating temperatures, and extending service life. Furthermore, they act as seals when connecting mechanical components, preventing liquid or gas leakage and ensuring the safe operation of the mechanical system. Additionally, some lubrication pipe joints can buffer vibrations during mechanical system operation, reducing shock and preventing damage and wear to mechanical components.

[0003] Specifically, the aforementioned lubrication pipeline structure typically consists of a connector body and threaded connections, and is mostly made of brass or stainless steel, capable of withstanding high-pressure and high-temperature working environments. Common types of oil pipe connectors include straight connectors, right-angle connectors, and adapter connectors.

[0004] Based on this, invention patent CN110671552A discloses an auxiliary connector for connecting small-diameter flexible and rigid pipes. It includes an auxiliary connector with two ends: a small-diameter rigid pipe end and a large-diameter flexible pipe end, both pipe ends forming flared openings; wherein the inner end of the flexible pipe end also forms a flared opening. Inside the auxiliary connector, a gap is provided between the rigid pipe end and the flexible pipe end. During assembly, as the metal (rigid) pipe continues forward and encounters the head of the flexible pipe, the flexible pipe, due to the constraint of the auxiliary connector at its rear, can only expand under the pressure of the metal (rigid) pipe, thus holding the head of the metal (rigid) pipe. Therefore, the auxiliary connector for connecting small-diameter flexible and rigid pipes disclosed in this patent has the advantages of simple structure and ease of processing; it is more suitable for use in the field of flexible and rigid pipe connection technology under conditions of compact structure and limited external space.

[0005] In addition, another Chinese utility model patent with publication number CN206386610U discloses a connecting elbow, which includes a first mounting part and a second mounting part that are interconnected. The first mounting part has a sealing groove on its outside and a sealing ring inside the sealing groove. A threaded tube is fitted onto the outside of the first mounting part, and a threaded sleeve is fitted onto the outside of the threaded tube. The threaded sleeve and the threaded tube are connected by threads. This connecting elbow can rotate to adjust the pipe installation direction and adapt to different installation spaces.

[0006] However, the aforementioned connectors still suffer from technical problems such as difficulty in positioning and the possibility of excessively tight or loose connections. Specifically, the connectors disclosed in existing patents, especially lubrication connectors used for sealing connections between soft and hard metals, typically employ the American standard NPT1 / 8 sealing tapered thread for sealing. This type of connector requires the use of thread-locking adhesive during actual installation; furthermore, when tightened using the same torque, the connection port faces in all directions when the user tightens it to the required torque, making it difficult to fix in the same direction. In this case, an additional torque is needed to orient it in the desired direction. This connection method not only suffers from a cumbersome installation process but also presents technical problems such as damage to the threaded connection or poor sealing when tightened too loosely or too tightly. Utility Model Content

[0007] Therefore, it is necessary to provide a soft and hard metal sealing connection structure to address the technical issues of how to improve the ease of installation and stability of lubrication pipe joints.

[0008] A soft and hard metal sealing connection structure includes: a base, an insertion connection part, and a sleeve connection part; the insertion connection part is provided at one end of the base, and the sleeve connection part is provided at the other end of the base; the insertion connection part communicates with the inner cavity of the sleeve connection part, and the inner wall surface of the insertion connection part and the outer wall surface of the sleeve connection part are both smooth surfaces.

[0009] Furthermore, the base has a relay connection cavity, the insertion connection portion has a first communicating cavity, and the sleeve connection portion has a second communicating cavity.

[0010] Furthermore, the relay connection cavity is respectively connected to the first connecting cavity and the second connecting cavity.

[0011] Furthermore, the first connecting cavity and the second connecting cavity are arranged perpendicular to each other.

[0012] Furthermore, the socket connection portion is provided with a socket portion, the second communicating cavity is disposed in the socket portion, and the socket portion is connected to the base.

[0013] Furthermore, the socket is a smooth cylindrical structure, and the end sides of the socket are chamfered.

[0014] Furthermore, the matrix has a stepped structure.

[0015] Furthermore, the stepped structure is connected to the sleeve portion.

[0016] In summary, this utility model discloses a soft and hard metal sealing connection structure comprising a base, an insertion connection portion, and a sleeve connection portion. The insertion connection portion is located at one end of the base, and the sleeve connection portion is located at the other end of the base. The inner cavity of the insertion connection portion communicates with that of the sleeve connection portion, and both the inner wall surface of the insertion connection portion and the outer wall surface of the sleeve connection portion are smooth surfaces. This utility model utilizes the elastic or plastic deformation of the material to achieve a sealed connection between different components. As a result, the installation time for the joint is reduced from 15 seconds per joint to 3 seconds per joint; the use of thread-locking adhesive is also reduced; the original threaded hole on the workpiece is replaced with a through hole, significantly reducing processing costs; simultaneously, the orientation of the joint can be easily adjusted without being restricted by the thread depth; thus, the assembly quality is improved. Therefore, this utility model's soft and hard metal sealing connection structure solves the technical problem of how to improve the ease of installation and stability of lubrication pipe joints. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a soft and hard metal sealing connection structure according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the soft and hard metal sealing connection structure of this utility model from another direction. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Please refer to the following: Figures 1 to 2 The present invention discloses a soft and hard metal sealing connection structure comprising: a base 1, an insertion connection part 2, and a sleeve connection part 3; the insertion connection part 2 is provided at one end of the base 1, and the sleeve connection part 3 is provided at the other end of the base 1; the insertion connection part 2 communicates with the inner cavity of the sleeve connection part 3, and the inner wall surface of the insertion connection part 2 and the outer wall surface of the sleeve connection part 3 are both smooth surfaces.

[0026] Specifically, unlike existing connectors with threaded ends, this invention proposes a sealed connection structure that eliminates the need for threaded connections. It is typically applicable to connections between hoses and hardware, such as the connection ports of devices requiring lubricant input. At the device or hardware end, the insertion connection 2 on one end of the base 1 connects to the remaining metal output portion, while the side receiving the flexible pipe interconnects with the sleeve connection 3, allowing the external pipe to be inserted into the outer wall of the sleeve connection 3. Both the insertion connection 2 and the sleeve connection 3 can be assembled by hammering or cold fitting, thus achieving a sealed connection between different components through the elastic or plastic deformation of the material. This reduces the installation time of each connector from 15 seconds to 3 seconds, reduces the use of threadlocker, and changes the threaded hole on the workpiece to a through hole, significantly reducing processing costs. Furthermore, it allows for convenient adjustment of the connector's orientation without being constrained by the thread depth, thereby improving assembly quality. Overall, the soft and hard metal sealing connection structure of this utility model can improve the convenience of assembly and connection, and solves the problem of excessive tightness or looseness that occurs when adjusting the orientation of the joint point during threaded connection.

[0027] Furthermore, as can be seen from the foregoing, the substrate 1 can be made of metal or plastic materials, and can be connected to external connectors only through elastic or plastic deformation.

[0028] Furthermore, the base 1 has a relay connection cavity 101, the insertion connection part 2 has a first communication cavity 201, and the sleeve connection part 3 has a second communication cavity 301; the relay connection cavity 101 connects the first communication cavity 201 and the second communication cavity 301 respectively. Thus, lubricating oil or other materials conveyed in the base 1 can be transferred between the first communication cavity 201, the relay connection cavity 101, and the second communication cavity 301.

[0029] Furthermore, in some embodiments, the first connecting cavity 201 and the second connecting cavity 301 are arranged perpendicularly to each other. Specifically, to facilitate the connection between the hose and the metal end, and for assembly methods such as hammering, the first connecting cavity 201 can be parallel to the second connecting cavity 301, or they can be arranged perpendicularly to each other. A more preferred arrangement is that they are perpendicular to each other, which can enhance the hammering force and prevent deformation of the interface end.

[0030] Furthermore, the connecting part 3 is also provided with a connecting part 302, and the second communicating cavity 301 is disposed in the connecting part 302. The connecting part 302 is connected to the base 1. The connecting part 302 is cylindrical, with chamfers on its end sides, and the second communicating cavity 301 is disposed inside it, thereby facilitating the connection of external hoses.

[0031] Furthermore, the base 1 also has a stepped structure 102, which is connected to the sleeve portion 302. Specifically, the stepped structure 102 facilitates the processing of the base 1 body and the installation of the insertion connection portion 2 and the sleeve connection portion 3.

[0032] In summary, this utility model discloses a soft and hard metal sealing connection structure comprising a base 1, an insertion connection part 2, and a sleeve connection part 3. The insertion connection part 2 is located at one end of the base 1, and the sleeve connection part 3 is located at the other end of the base 1. The inner cavities of the insertion connection part 2 and the sleeve connection part 3 are connected, and both the inner wall surface of the insertion connection part 2 and the outer wall surface of the sleeve connection part 3 are smooth surfaces. This utility model utilizes the elastic or plastic deformation of materials to achieve a sealed connection between different components. Thus, the installation time for the joint is reduced from 15 seconds per joint to 3 seconds per joint; the use of thread-locking adhesive is reduced; the workpiece is changed from a threaded hole to a through hole, significantly reducing processing costs; simultaneously, the orientation of the joint can be easily adjusted without being restricted by the thread depth; thereby improving assembly quality. Therefore, this utility model's soft and hard metal sealing connection structure solves the technical problem of how to improve the ease of installation and stability of lubrication pipe joints.

[0033] 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.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A soft and hard metal sealing connection structure, characterized in that, It includes: The base (1), the insertion connection part (2), and the sleeve connection part (3) are provided; the insertion connection part (2) is provided at one end of the base (1), and the sleeve connection part (3) is provided at the other end of the base (1); the insertion connection part (2) communicates with the inner cavity of the sleeve connection part (3), and the inner wall surface of the insertion connection part (2) and the outer wall surface of the sleeve connection part (3) are both smooth surfaces.

2. The soft and hard metal sealing connection structure according to claim 1, characterized in that: The base (1) has a relay connection cavity (101), the insertion connection part (2) has a first communication cavity (201), and the sleeve connection part (3) has a second communication cavity (301).

3. The soft and hard metal sealing connection structure according to claim 2, characterized in that: The relay connection cavity (101) is connected to the first communication cavity (201) and the second communication cavity (301) respectively.

4. The soft and hard metal sealing connection structure according to claim 3, characterized in that: The first communicating cavity (201) and the second communicating cavity (301) are arranged perpendicular to each other.

5. The soft and hard metal sealing connection structure according to claim 2, characterized in that: The socket connection part (3) is provided with a socket part (302), the second communicating cavity (301) is disposed in the socket part (302), and the socket part (302) is connected to the base (1).

6. The soft and hard metal sealing connection structure according to claim 5, characterized in that: The socket (302) is a smooth cylindrical structure, and the end side of the socket (302) is provided with a chamfer.

7. The soft and hard metal sealing connection structure according to claim 6, characterized in that: The substrate (1) has a stepped structure (102).

8. The soft and hard metal sealing connection structure according to claim 7, characterized in that: The stepped structure (102) is connected to the sleeve portion (302).

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