A sealed connector

Abstract

The utility model discloses a sealed connector, including the hollow structure's socket shell and plug shell, the one end of plug shell with the internal space of socket shell is compatible, and mutually plugs when using, the inboard of socket shell with plug shell is provided with connectable terminal no.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a sealed connector. Background Technology

[0002] Connectors, as a basic and critical electronic component, are widely used in various electrical systems. They are mainly used to connect two or more electronic devices, components or circuits to achieve reliable transmission of signals, current or data. In complex electronic devices and electrical circuits, connectors act as bridges. With their convenient connection and disconnection characteristics, they make system assembly, maintenance and upgrades more efficient and are an important link in ensuring the stable operation of electrical systems.

[0003] Currently, the industry's existing technologies rely on traditional processes such as welding, internal potting, external encapsulation, and thickened shells to make connectors waterproof underwater. These methods are prone to fatigue failure during long-term high-pressure use, posing a risk of water ingress, and are inconvenient to repair and replace. Furthermore, the socket shell of traditional connectors is mainly installed on the equipment by welding, which is a single installation method with poor flexibility. This results in a high product failure rate, inconvenience in use, and varying degrees of economic losses for users.

[0004] Therefore, a sealed connector is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sealed connector to solve the above-mentioned problems.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A sealed connector includes a hollow socket housing and a plug housing, one end of the plug housing being adapted to the internal space of the socket housing and being plugged into each other during use, and the inner sides of the socket housing and the plug housing being respectively provided with a terminal one and a terminal two that can be connected to each other;

[0008] The socket housing is provided with a socket flange and a socket sleeve in sequence along the axial direction. The socket flange is integrally formed with the socket housing or is provided as a separate component fitted onto the socket housing. The inner surface of the socket sleeve and the outer surface of the socket housing are respectively provided with matching internal threads and external threads. The outer surface of the end of the plug housing that is inserted into the socket housing is provided with a sealing groove. A plug sealing ring is provided inside the sealing groove. The two sides of the plug sealing ring abut against the inner wall of the sealing groove and the inner wall of the socket housing. A connecting mechanism is provided between the socket housing and the plug housing, which enables a detachable connection between the socket housing and the plug housing.

[0009] Optionally, the interior of the socket sleeve forms a sealing block.

[0010] Optionally, the connecting mechanism includes a housing nut, which is a cylindrical structure and sleeved on the plug housing. The outer surface of the socket housing away from the socket sleeve is provided with an external thread II, and the inner surface of the housing nut is provided with an internal thread II that connects to the external thread II. The socket housing is threadedly connected to the plug housing through the housing nut. The outer surface of the plug housing has a ring-shaped protrusion, which is surrounded by the housing nut. One edge of the housing nut is bent inward and abuts against the protrusion, so that the housing nut cannot detach from the plug housing.

[0011] Optionally, the housing nut has a threaded hole, and an anti-dislodgement screw with one end abutting against the outer surface of the plug housing is provided in the threaded hole.

[0012] Optionally, the socket housing has an annular closed protrusion, the protrusion and the socket sleeve are respectively located on opposite sides of the socket flange, a second sealing groove is provided on the side of the protrusion facing the socket flange, a first flange sealing ring is provided inside the second sealing groove, and the first flange sealing ring is in abutting state with the socket flange, and a third sealing groove is provided on the side of the socket flange facing the socket sleeve, a second flange sealing ring is provided inside the third sealing groove.

[0013] Optionally, the end of the plug housing is provided with an external thread three, and the end of the plug housing is fitted with a tail cap. The middle position of the inner sidewall of the tail cap is provided with an internal thread three that is threaded to the external thread three. The inner sidewall of the tail cap away from the end of the plug housing is successively formed into a frustum-shaped cavity structure and a cylindrical cavity structure along the axial direction. The end of the plug housing is provided with a wire clamp, which includes a ring frame and a clamping plate. The ring frame is disposed on the end of the plug housing. Multiple clamping plates are arranged around the end of the ring frame away from the plug housing. The clamping plate has an arc-shaped structure, and one end abuts against the inner wall of the frustum-shaped cavity structure of the tail cap. The surface of the clamping plate that abuts against the tail cap is an inclined surface and matches the inner wall of the frustum-shaped cavity structure of the tail cap.

[0014] Optionally, a sealing groove four is formed on the outer surface of the end of the plug housing, and a tail cap sealing ring is provided inside the sealing groove four. The two sides of the tail cap sealing ring abut against the inner wall of the sealing groove four and the inner wall of the tail cap, respectively. A sealing groove five is formed on the inner surface of the cylindrical side of the tail cap, and a cable sealing ring is provided inside the sealing groove five.

[0015] Optionally, the outer surface of the end of the plug housing and the outer surface of the tail cap are both covered with the same protective sleeve, and a second adhesive block is provided between the protective sleeve and the end of the plug housing, between the protective sleeve and the tail cap, and inside the tail cap.

[0016] Optionally, the plug housing is provided with a sealing block three inside, the sealing block three being located between the terminal two and the tail cap.

[0017] Compared to existing technologies, the advantages of this utility model are as follows: By setting a detachable connection mechanism, such as a shell nut with a threaded structure, a stable connection and convenient disassembly of the socket shell and plug shell are achieved, facilitating product replacement, maintenance, and transportation; the elastic deformation characteristics of the plug sealing rings can fill the gap between the two, and there are at least two of them, which can maintain a sealing and waterproof effect in a long-term high-pressure environment; the multiple sealing design of flange sealing rings one and two, tail cap sealing ring, cable sealing ring, and adhesive blocks two and three further enhances the sealing performance, effectively preventing moisture and dust intrusion, ensuring the safety of internal circuits, and extending the service life of the equipment; the integrated molding or independent separate structure of the socket shell and socket flange, combined with the detachable socket sleeve, allows the sealed connector to have multiple installation methods, and users can choose according to their needs and installation conditions. The device offers various fixing methods, including threaded connection, flange connection, or a combination of plug and flange connections, flexibly adapting to different equipment installation scenarios. This differs from the single installation method of traditional welded socket sleeves, saving costs and increasing installation flexibility. The anti-slip texture on the housing nut prevents slippage during tightening, while protrusions limit the nut's position and indicate when it's fully tightened. Anti-loosening screws prevent loosening due to vibration, enhancing connection stability. The threaded fit between the tail cap and plug housing, along with the cable clamp structure, uses the inner wall of the tail cap's frustum cavity to compress the clamping plate, achieving anti-pull functionality. The anti-slip texture on the inner side of the clamping plate further increases friction with the cable, ensuring reliable cable connection. The protective sleeve is made of insulating material, enhancing equipment insulation, preventing leakage and electric shock to users, while also resisting external impacts and friction, improving equipment safety and durability. Attached Figure Description

[0018] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a left sectional view of the present invention;

[0022] Figure 4 This is a partial three-dimensional structural cross-sectional view of this utility model;

[0023] Figure 5 This is an exploded view of a partial structure of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the housing nut, tail cap, and wire clamp of this utility model.

[0025] In the attached diagram: 1. Socket housing; 2. Plug housing; 31. Terminal 1; 32. Terminal 2; 41. Socket flange; 42. Housing nut; 51. Flange sealing ring 1; 52. Flange sealing ring 2; 53. Plug sealing ring; 61. Tail cap; 63. Wire clamp; 631. Ring frame; 632. Clamp plate; 71. Tail cap sealing ring; 72. Cable sealing ring; 8. Protective sleeve; 9. Protrusion; 10. Anti-loosening screw; 11. Socket sleeve; 12. Internal thread 1; 13. External thread 1; 14. Protrusion. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below, examples of which 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. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," 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 limiting this utility model. In addition, 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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, an electrical connection, or a connection that allows for mutual communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] In this embodiment, by Figure 1-6This invention discloses a sealed connector comprising a hollow socket housing 1 and a plug housing 2. One end of the plug housing 2 is fitted into the internal space of the socket housing 1 and is plugged into each other during use. The inner sides of the socket housing 1 and the plug housing 2 are respectively provided with a connectable terminal 31 and a terminal 32. The socket housing 1 is provided with a socket flange 41 and a socket sleeve 11 sequentially along the axial direction. The socket flange 41 is integrally formed with the socket housing 1 or is provided as a separate component fitted onto the socket housing 1. The inner surface of the socket sleeve 11 and the outer surface of the socket housing 1 are respectively provided with matching internal threads 12 and external threads 13. A sealing groove is formed on the outer surface of the end of the plug housing 2 that inserts into the socket housing 1. A plug sealing ring 53 is provided inside the sealing groove, with both sides of the plug sealing ring 53 abutting against the inner wall of the sealing groove and the inner wall of the socket housing 1. A connecting mechanism is provided between the socket housing 1 and the plug housing 2, enabling a detachable connection between the socket housing 1 and the plug housing 2.

[0031] In this embodiment, the connecting mechanism can securely connect the socket housing 1 and the plug housing 2 together, and can also be disassembled and separated, making product replacement and maintenance more convenient and quick. Specifically, the connecting mechanism can be a structure similar to a nut or an arc-shaped plate with built-in threads, and the connecting mechanism is disposed on the plug housing 2 and detachably connected to the socket housing 1 by means of threaded connection.

[0032] The plug sealing ring 53 fills the gap between the socket housing 1 and the plug housing 2 to achieve a sealing effect. At the same time, the elastic deformation characteristics of the plug sealing ring 53 can maintain the sealing and waterproof effect in the long-term high pressure environment. Preferably, there are at least two sealing grooves and plug sealing rings 53 to enhance the sealing effect.

[0033] It should be noted that sealing rings typically achieve their sealing function through their own elastic deformation. When installed in a part that needs to be sealed, the sealing ring will be subjected to a certain amount of compression, thereby generating uniform pressure on the contact surface and preventing water penetration. This sealing method can adapt to a certain degree of deformation and displacement. In long-term use, even under high pressure, as long as the elastic properties of the sealing ring are not damaged, it can always maintain a good sealing effect.

[0034] Before installing the sealing connector on the device to be installed, it is necessary to tap and drill holes on the device to form threaded holes and through holes. Since the socket housing 1 and socket flange 41 have two connection methods—one-piece molding and separate components—and the socket sleeve 11 is threadedly connected to the socket housing 1, they are also detachable; that is, the socket sleeve 11 can be separated and removed from the socket housing 1. Thus, the sealing connector offers multiple installation methods, allowing users to choose the appropriate type based on their needs and different installation conditions. Specifically, in the first scenario: the socket housing 1 and the socket flange 41 are either integrally formed or independently separate structures, and the socket sleeve 11 is removed and not used. During installation, the socket housing 1 can be installed on the required equipment body through the holes on the socket flange 41 and with the fasteners. Alternatively, the socket housing 1 can be threaded onto the required equipment by using the threaded holes and external thread 13 on the equipment to be installed, achieving a dual fixing method of threaded connection and flange connection, which is stable and reliable, and can be disassembled and assembled as needed. In the second scenario: the socket housing 1 and the socket flange 41 are either integrally formed or independently separate structures, and the socket sleeve 11 is threaded onto the socket housing 1. During installation, a cable is led out from the equipment to be installed and connected to terminal 31. Then, as needed, glue is poured into the socket sleeve 11 and cooled, thereby forming a sealing adhesive inside the socket sleeve 11. In the first case, a sealing block is formed to achieve a sealing effect (of course, it is also possible not to inject glue; there are two situations: injecting glue and not injecting glue). Then, the socket sleeve 11 is inserted into the through hole or threaded hole on the equipment to be installed. Finally, the socket housing 1 is installed on the required equipment body through the hole on the socket flange 41 and with the fastener, realizing a dual fixing method of plug-in and flange connection; the third case is: the socket housing 1 and the socket flange 41 are independent separate structures, and the socket flange 41 and the socket sleeve 11 are removed and not used. During installation, the threaded hole on the equipment to be installed and the external thread 13 are used to fit, so that the socket housing 1 is threaded onto the required equipment; in addition, after the terminal 31 is connected to the cable, glue is injected into the socket sleeve 11 and cooled, so that a sealing block is formed inside the socket sleeve 11. In this case, it is also possible not to install it on the equipment body to achieve a sealing effect. Users can choose different installation methods according to their needs to achieve flexible application. The connection method using threads and / or flanges also facilitates maintenance and replacement. This is different from the traditional product's single method of welding the socket sleeve 11, saving costs and creating greater economic benefits.

[0035] As another embodiment of this utility model, see reference Figures 4 to 6The connecting mechanism includes a housing nut 42, which is a cylindrical structure and is fitted onto the plug housing 2. The outer surface of the socket housing 1 away from the socket sleeve 11 is provided with an external thread 2, and the inner surface of the housing nut 42 is provided with an internal thread 2 that connects with the external thread 2. The socket housing 1 is threadedly connected to the plug housing 2 through the housing nut 42. The outer surface of the plug housing 2 has a ring-shaped protrusion 9, which is surrounded by the housing nut 42. One edge of the housing nut 42 is bent inward and abuts against the protrusion 9, so that the housing nut 42 cannot be detached from the plug housing 2.

[0036] Specifically, the housing nut 42 has a cylindrical structure and is typically fitted around the outer periphery of the plug housing 2. The end of the socket housing 1 furthest from the socket sleeve 11 has an external thread, and the housing nut 42 has an internal thread that matches the external thread on the socket housing 1. This allows the end of the socket housing 1 furthest from the socket sleeve 11 to be threadedly connected to the inside of the housing nut 42. By rotating the housing nut 42 in either the forward or reverse direction, the internal thread of the housing nut 42 can engage or disengage with the external thread of the socket housing 1, thereby securing the socket housing 1 and the plug housing 2 together or separating them. This structure utilizes a threaded connection to achieve detachable fixing or separation, facilitating maintenance and replacement. Furthermore, the outer surface of the housing nut 42 has anti-slip textures to prevent slippage when tightening it.

[0037] Furthermore, the outer surface of the plug housing 2 has a ring-shaped protrusion 9, which can be an integrally formed ring surrounding the surface of the plug housing 2. The edge of the housing nut 42 away from the socket housing 1 is bent inward to form a retaining flange. Thus, the inner diameter of the end of the housing nut 42 away from the socket housing 1 is smaller than the inner diameter of the end of the housing nut 42 near the socket housing 1. The end of the housing nut 42 away from the socket housing 1 is defined as the small-diameter end (i.e., the end with the retaining flange). The retaining flange at the small-diameter end abuts against the surface of the protrusion 9, and the protrusion 9 can limit the housing nut 42, so that the housing nut 42 cannot be detached from the socket housing 1, thus preventing the housing nut 42 from being lost. After the plug housing 2 is inserted into the socket housing 1, the housing nut 42 is turned until one end of the socket housing 1 abuts against the surface of the protrusion 9. At this time, the upper and lower surfaces of the protrusion 9 abut against the flange of the small diameter end and one end of the socket housing 1, respectively. This means that the housing nut 42 has been turned into place and cannot be turned any further. The plug housing 2 and the socket housing 1 are connected in place. Therefore, the protrusion 9 also serves to indicate whether the housing nut 42 has been turned into place.

[0038] As another embodiment of this utility model, see reference Figure 4The housing nut 42 has a threaded hole, and an anti-loosening screw 10 is installed in the threaded hole, with one end abutting against the outer surface of the plug housing 2. When in use, a tool is used to accurately insert into the slot of the screw head, and then screwed in the required direction so that one end of the anti-loosening screw 10 protrudes from the threaded hole to abut against the outer surface of the plug housing 2, thus avoiding the possibility of the housing nut 42 and the plug housing 2 loosening due to vibration, and ensuring the stability of the product's waterproofness.

[0039] In another embodiment of this utility model, the socket housing 1 has a ring-shaped closed protrusion 14. The protrusion 14 and the socket sleeve 11 are located on opposite sides of the socket flange 41. A sealing groove 2 is provided on the side of the protrusion 14 facing the socket flange 41. A flange sealing ring 51 is provided inside the sealing groove 2, and the flange sealing ring 51 is in abutting state with the socket flange 41. A sealing groove 3 is provided on the side of the socket flange 41 facing the socket sleeve 11. A flange sealing ring 52 is provided inside the sealing groove 3.

[0040] In this embodiment, the socket flange 41, in conjunction with fasteners, can install the socket housing 1 onto the equipment body. The side of the socket flange 41 away from the equipment body will abut against the protrusion 14 and the flange sealing ring 51 to achieve a sealing and waterproofing effect. The protrusion 14 serves as a limit, while the two sides of the flange sealing ring 52 will abut against the inner side of the sealing groove 3 and the surface of the equipment body to achieve the purpose of sealing and waterproofing.

[0041] As another embodiment of this utility model, see reference Figures 4 to 6The end of the plug housing 2 is provided with an external thread 3, and a tail cap 61 is fitted onto the end of the plug housing 2. The tail cap 61 has a hollow structure and is open at both ends. The middle position of the inner side wall of the tail cap 61 is provided with an internal thread 3 that is threaded to the external thread 3. The threaded engagement of the external thread 3 and the internal thread 3 ensures that the tail cap 61 and the plug housing 2 are connected together. At the same time, the distance of the plug housing 2 into the tail cap 61 can be adjusted as needed. The inner side wall of the tail cap 61 away from the end of the plug housing 2 has a frustum cavity structure and a cylindrical cavity structure along the axial direction. That is to say, as shown in Figures 1 and 2, the position of the tail cap 61 away from the end of the plug housing 2 (that is, the end of the tail cap 61) is a funnel-shaped structure. This funnel-shaped structure is formed by joining a frustum and a cylinder, both of which are hollow inside. The interior of the funnel-shaped structure has a frustum-shaped cavity and a cylindrical cavity along the axial direction. A wire clamp 63 is provided at the end of the plug housing 2. The wire clamp 63 includes a ring frame 631 and clamping plates 632. The ring frame 631 is located at the end of the plug housing 2. Multiple clamping plates 632 are arranged around the end of the ring frame 631 away from the plug housing 2. The clamping plates 632 have an arc-shaped structure, and one end abuts against the inner wall of the tail cap 61, which has a frustum-shaped cavity structure. The arc-shaped structure of the clamping plates 632 better matches the shape of the cable, and the inner side wall of the clamping plates 632 has anti-slip textures. The anti-slip textures can increase the friction between the clamping plates 632 and the cable. When the clamping plates 632 clamp the cable, the textures are in close contact with the surface of the cable, effectively preventing the cable from sliding inside the clamping plates 632. The side surface of the clamping plate 632 that abuts against the tail cap 61 is inclined, and this inclined surface matches the inner wall of the tail cap 61, which has a frustum-shaped structure. As the distance between the plug housing 2 and the end cap 61 increases, the inclined end of the clamp plate 632 in the wire clamp 63 moves along the inner wall of the frustum-shaped cavity structure of the end cap 61. This causes the inner wall of the frustum-shaped cavity structure of the end cap 61 to press all the clamp plates 632 towards the center of the wire clamp 63. The clamp plates 632 deform and lock the cable, thereby achieving the purpose of preventing the cable from being pulled. The thickness of the middle of the clamp plate 632 is smaller than that of the two ends. The smaller thickness in the middle makes the clamp plate 632 more likely to deform when subjected to external pressure. When the clamp plate 632 of the wire clamp 63 moves along the inner wall of the end cap 61 and is pressed, the middle position of the clamp plate 632 can bend more flexibly.

[0042] As another embodiment of this utility model, see reference Figure 4 A sealing groove four is provided on the outer surface of the end of the plug housing 2. A tail cap sealing ring 71 is provided inside the sealing groove four. The two sides of the tail cap sealing ring 71 abut against the inner wall of the sealing groove four and the inner wall of the tail cap 61, respectively. A sealing groove five is provided on the inner surface of the side of the tail cap 61 which has a cylindrical cavity structure. A cable sealing ring 72 is provided inside the sealing groove five.

[0043] In this embodiment, after the tail cap sealing ring 71 is installed inside the sealing groove four, it can fit tightly against the inner wall of the sealing groove four. At the same time, when the plug housing 2 enters the tail cap 61, the other side of the tail cap sealing ring 71 will also fit tightly against the inner wall of the tail cap 61. In actual use, the equipment may be exposed to humid environments or dusty spaces. During the tightening process of the tail cap 61, the tail cap sealing ring 71 is subjected to extrusion forces from both sides, resulting in elastic deformation and filling any tiny gaps that may exist between the plug housing 2 and the tail cap 61. After the cable passes through the end cap 61 and is connected to terminal 32, the cable sealing ring 72 tightly wraps around the outer surface of the cable. During the tightening of the end cap 61, the cable sealing ring 72 is constrained by the inner wall of the sealing groove 5 and adheres tightly to the surface of the cable due to its own elasticity. This forms a crucial sealing barrier at the entrance of the cable into the end cap 61. Even if a small amount of moisture or dust attempts to penetrate into the end cap 61 along the surface of the cable, the cable sealing ring 72 can successfully block it due to its tight fit. In this way, both tiny dust particles and moisture molecules are effectively blocked by these two sealing barriers and cannot enter the interior of the end cap 61. This ensures the safety of the internal circuit of the end cap 61, greatly reduces the probability of short circuits, corrosion and other failures caused by impurities, and significantly extends the service life of the equipment.

[0044] As another embodiment of this utility model, see reference Figure 3 and Figure 4 The outer surface of the plug housing 2 and the outer surface of the tail cap 61 are both covered with the same protective sleeve 8. As the first line of defense, the protective sleeve 8 is made of insulating material, which can further enhance the insulation of the equipment. In humid environments, it can prevent moisture from contacting the parts and causing leakage. The protective sleeve 8 can also block current leakage, reduce the risk of electric shock to users, and improve electrical safety. Secondly, the protective sleeve 8 can also resist external collisions and friction. There are adhesive blocks 2 between the protective sleeve 8 and the end of the plug housing 2, between the protective sleeve 8 and the tail cap 61, and inside the tail cap 61. After the protective sleeve 8 is installed, high-temperature glue can be filled into its interior and between it and the end of the plug housing 2 and the outer surface of the tail cap 61 for sealing. At the same time, the high-temperature glue will also fuse with the tail cap sealing ring 71 and the cable sealing ring 72. After the high-temperature glue cools, it forms adhesive blocks 2, which further improves the sealing effect.

[0045] Preferably, in another embodiment of the present invention, the plug housing 2 is provided with a sealing block 3 inside, which is located between terminal 2 32 and tail cap 61.

[0046] In this embodiment, after the cable passes through the protective sleeve 8 and is connected to the terminal 2 32, glue is poured into the inside of the plug housing 2. After the glue solidifies, it forms a glue block 3, which fills the connection part and various gaps to achieve a sealing effect.

[0047] Working principle: The connection is achieved through the interlocking of the hollow socket shell 1 and plug shell 2. The terminals 31 and 32 on the inner sides of the two can be connected to conduct the circuit. A plug sealing ring 53 is installed in the sealing groove 1 on the outer surface of the plug shell 2 insertion end. Its two sides abut against the inner wall of the sealing groove 1 and the inner wall of the socket shell 1, respectively. The gap is filled by elastic deformation to achieve sealing. There are at least two sealing grooves and plug sealing rings 53 to enhance the sealing effect. The connection mechanism between the socket shell 1 and the plug shell 2 (such as the shell nut 42) is detachably fixed by threaded connection. The shell nut 42 is sleeved on the plug shell 2. Its inner thread 2 mates with the outer thread 2 on the outer surface of the socket shell 1. At the same time, one end of the shell nut 42 is bent to abut against the protrusion on the outer surface of the plug shell 2. Block 9 is used to limit and prevent detachment. Anti-detachment screw 10 can further prevent the housing nut 42 from loosening. A flange sealing ring 1 51 is set between the protrusion 14 on the socket housing 1 and the socket flange 41. A flange sealing ring 2 52 is set on the side of the socket flange 41 that contacts the equipment body. The external thread 3 at the end of the plug housing 2 mates with the internal thread 3 of the tail cap 61. The inner wall of the truncated cone cavity structure in the tail cap 61 squeezes the clamping plate 632 of the wire clamp 63 to clamp the cable and prevent pulling. The tail cap sealing ring 71 in the sealing groove 4 and the cable sealing ring 72 in the sealing groove 5 respectively achieve the sealing between the plug housing 2 and the tail cap 61 and the cable. The protective sleeve 8 wraps the end of the plug housing 2 and the tail cap 61. The inside is filled with high temperature glue to form a glue block 2. Glue is poured into the inside of the plug housing 2 to form a glue block 3, which further enhances the sealing effect. Furthermore, the three installation methods of the socket housing 1 offer flexible adaptability, allowing selection based on needs and installation conditions. Whether using the socket flange 41 with fasteners to connect to the equipment body, using the external thread 13 to connect to the equipment threaded hole, or using the socket sleeve 11 to seal with glue and then inserting it into the equipment through hole or threaded hole, dual fixation can be achieved through threaded connection, flange connection, or insertion and flange connection. This ensures stability, reliability, and ease of disassembly and assembly, unlike the single method of traditional welded socket sleeve 11, saving costs. At the same time, the various sealing structures (sealing rings, adhesive blocks, etc.) work together to maintain good sealing and waterproofing effects in long-term high-pressure environments, protecting the internal circuit safety, extending the service life of the equipment, and the detachable design of each component facilitates product replacement, maintenance, and transportation.

[0048] In the description of this specification, the references to terms such as "embodiment," "one implementation," "some implementations," "illustrative implementation," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described implementation or example is included in at least one implementation or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more implementations or examples.

[0049] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A sealed connector, comprising a hollow socket housing (1) and a plug housing (2), one end of the plug housing (2) being adapted to the internal space of the socket housing (1) and being plugged into each other during use, wherein the inner sides of the socket housing (1) and the plug housing (2) are respectively provided with a terminal one (31) and a terminal two (32) that can be connected to each other. Its features are: The socket housing (1) is provided with a socket flange (41) and a socket sleeve (11) in sequence along the axial direction. The socket flange (41) on the socket housing (1) is integrally formed with the socket housing (1) or is provided as an independent component on the socket housing (1). The inner surface of the socket sleeve (11) and the outer surface of the socket housing (1) are respectively provided with matching internal threads (12) and external threads (13). The outer surface of the end of the plug housing (2) inserted into the socket housing (1) is provided with a sealing groove. A plug sealing ring (53) is provided inside the sealing groove. The two sides of the plug sealing ring (53) abut against the inner wall of the sealing groove and the inner wall of the socket housing (1). A connecting mechanism is provided between the socket housing (1) and the plug housing (2). The connecting mechanism can realize the detachable connection between the socket housing (1) and the plug housing (2).

2. A sealed connector according to claim 1, characterized in that, The interior of the socket sleeve (11) forms a sealing block.

3. A sealed connector according to claim 1, characterized in that, The connecting mechanism includes a housing nut (42), which is a cylindrical structure and is fitted onto the plug housing (2). The outer surface of the socket housing (1) away from the socket sleeve (11) is provided with an external thread II. The inner surface of the housing nut (42) is provided with an internal thread II that connects with the external thread II. The socket housing (1) is threadedly connected to the plug housing (2) through the housing nut (42). The outer surface of the plug housing (2) has a ring-shaped protrusion (9), which is surrounded by the housing nut (42). One end edge of the housing nut (42) bends inward toward the protrusion (9) and abuts against the protrusion (9) so that the housing nut (42) cannot detach from the plug housing (2).

4. A sealed connector according to claim 3, characterized in that, The housing nut (42) has a threaded hole, and an anti-dislodgement screw (10) with one end abutting against the outer surface of the plug housing (2) is provided in the threaded hole.

5. A sealing connector according to any one of claims 1-4, characterized in that, The socket housing (1) has a ring-shaped closed protrusion (14). The protrusion (14) and the socket sleeve (11) are located on opposite sides of the socket flange (41). A sealing groove 2 is provided on the side of the protrusion (14) facing the socket flange (41). A flange sealing ring 1 (51) is provided inside the sealing groove 2, and the flange sealing ring 1 (51) is in contact with the socket flange (41). A sealing groove 3 is provided on the side of the socket flange (41) facing the socket sleeve (11). A flange sealing ring 2 (52) is provided inside the sealing groove 3.

6. A sealing connector according to any one of claims 1-4, characterized in that, The end of the plug housing (2) is provided with an external thread three, and a tail cap (61) is fitted onto the end of the plug housing (2). An internal thread three is provided at the middle position of the inner side wall of the tail cap (61) and is threaded to the external thread three. The inner side wall of the tail cap (61) away from the end of the plug housing (2) is successively formed into a frustum cavity structure and a cylindrical cavity structure along the axial direction. A wire clamp (63) is provided at the end of the plug housing (2). The wire clamp (63) includes a ring frame (63). 1) and clamp (632), the ring frame (631) is disposed on the end of the plug housing (2), and a plurality of clamps (632) are arranged around the end of the ring frame (631) away from the plug housing (2). The clamps (632) have an arc-shaped structure and one end abuts against the inner wall of the tail cap (61) which has a frustum-shaped cavity structure. The surface of the clamps (632) that abuts against the tail cap (61) is an inclined surface and matches the inner wall of the tail cap (61) which has a frustum-shaped cavity structure.

7. A sealed connector according to claim 6, characterized in that, A sealing groove four is provided on the outer surface of the end of the plug housing (2). A tail cap sealing ring (71) is provided inside the sealing groove four. The two sides of the tail cap sealing ring (71) abut against the inner wall of the sealing groove four and the inner wall of the tail cap (61) respectively. A sealing groove five is provided on the inner surface of the cylindrical side of the tail cap (61). A cable sealing ring (72) is provided inside the sealing groove five.

8. A sealed connector according to claim 6, characterized in that, The outer surface of the end of the plug housing (2) and the outer surface of the tail cap (61) are both covered with the same protective sleeve (8). There are two adhesive blocks between the protective sleeve (8) and the end of the plug housing (2), between the protective sleeve (8) and the tail cap (61), and inside the tail cap (61).

9. A sealed connector according to claim 6, characterized in that, The plug housing (2) is provided with a sealing block three inside, which is located between the terminal two (32) and the tail cap (61).

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