Waterproof joint

Abstract

The waterproof joint comprises a wire rod, a joint piece, a sealing structure and a waterproof breathable film, the wire rod is provided with an outer insulation skin and at least one inner core wire, the inner core wire comprises a wire and a core wire insulation skin, the end portion of the wire extends out of the core wire insulation skin to form an exposed section, and the joint piece is arranged on the wire rod in a surrounding mode. The connector piece is provided with an inner connecting part and an outer connecting part, the inner connecting part is arranged on the inner side of the outer connecting part, the inner core wire penetrates through the inner connecting part, a ventilation channel is formed in the connector piece, an opening in one end of the ventilation channel is formed in the inner connecting part, and an opening in the other end of the ventilation channel is formed in the outer connecting part; the sealing body can seal the gap between the exposed section and the core wire insulating skin, the waterproof breathable film is arranged on the connector piece and located in the breathable channel, the waterproof breathable film can block the breathable channel, and the waterproof breathable film can be breathable, can block water and water vapor, can resist water and can release pressure in the lamp.

Description

Technical Field

[0001] The utility model relates to the technical field related to electric connectors, in particular to a waterproof connector. Background Art

[0002] The cable includes an inner core wire and an outer insulating sheath sleeved on the outer side of the inner core wire. The inner core wire includes a conductor and a wire sheath covering the conductor. Since the conductor is generally made of multiple copper wires, there are gaps between the multiple copper wires and between the wire sheath and the copper wire to form a channel. Due to the existence of the above-mentioned channel, when the cable is connected to the lamp to be installed through a joint, there is a siphon phenomenon between the inner core wire and the lamp, and water vapor or even liquid water will enter the lamp along these gaps. Therefore, a sealing structure is required to prevent external water or water vapor from entering the lamp. In the prior art, the sheaths of each core wire are peeled off at the joint, and then the above-mentioned gaps are filled and sealed by pouring glue to achieve a waterproof effect. However, the above-mentioned process is relatively complicated, and after sealing, although water is temporarily difficult to enter the lamp, when the lamp is working, high pressure will be generated inside due to the high temperature, and after sealing, the pressure is difficult to release, which will still cause damage to components such as lenses and light sources, thereby reducing the service life of the lamp. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a waterproof connector, which can solve the problem of how to release the high pressure inside the lamp under the premise of achieving waterproof at low cost.

[0004] According to the first aspect of the present invention, the waterproof connector comprises: a wire, a connector, a sealing structure and a waterproof breathable membrane, wherein the wire has an outer insulation skin and at least one inner core wire, wherein the inner core wire comprises a conductive wire and a core wire insulation skin, wherein the end of the conductive wire extends out of the core wire insulation skin to form an exposed section, wherein the connector is arranged around the wire, wherein the connector has an inner connecting portion and an outer connecting portion, wherein the inner connecting portion is arranged on the inner side of the outer connecting portion, wherein the inner core wire passes through the inner connecting portion, wherein the connector has an air permeable passage, wherein one end of the air permeable passage is opened at the inner connecting portion, and the other end of the air permeable passage is opened at the outer connecting portion, wherein the sealing structure comprises a sealing body, wherein the sealing body is arranged at the core wire insulation skin and the exposed section, wherein the sealing body can seal the gap between the exposed section and the core wire insulation skin, wherein the waterproof breathable membrane is arranged at the connector and located at the air permeable passage, wherein the waterproof breathable membrane can block the air permeable passage, wherein the waterproof breathable membrane can be breathable, and can block water and water vapor.

[0005] The waterproof connector according to the embodiment of the utility model has at least the following beneficial effects: the connector is connected to the lamp through the inner connecting part, and the outer connecting part is located outside the lamp, the exposed section of the wire is used to be electrically connected to the lamp, and by providing a sealing body, the gap between the wire and the core wire insulation skin can be sealed to achieve a waterproof effect on the inner core wire, and the manufacturing cost is low. The air permeable channel provided on the connector can connect the inside and outside of the lamp through the waterproof and breathable membrane, and air circulation can be achieved through the waterproof and breathable membrane, and water and water vapor are isolated from entering the lamp, so as to release the internal pressure of the lamp, thereby increasing the service life of the lamp.

[0006] According to some embodiments of the present invention, the sealing structure further includes a first sealing layer, the conductive wire includes multiple strands of wires, and the exposed segments are tinned to form the first sealing layer to seal gaps between the wires.

[0007] According to some embodiments of the utility model, the sealing body comprises a double-walled tube, and the double-walled tube is arranged around the exposed section and the core wire insulation skin. After heat shrinkage, the double-walled tube seals the gap between the exposed section and the core wire insulation skin.

[0008] According to some embodiments of the utility model, the sealing body further includes a glue sealing layer, and the glue sealing layer is arranged on the inner wall of the double-walled tube.

[0009] According to some embodiments of the utility model, the outer insulation skin has a wire channel, the inner core wire is arranged in the wire channel, and the inner core wire extends out of the wire channel, and a second sealing layer is provided between the inner core wire and the outer insulation skin, and the second sealing layer seals the gap between the inner core wire and the outer insulation skin.

[0010] According to some embodiments of the present invention, the outer insulating skin has an open end, and glue is poured from the open end into the wire channel to form the second sealing layer.

[0011] According to some embodiments of the present invention, the connector is injection molded on the wire, and a glue sealing layer is provided between the connector and the wire.

[0012] According to some embodiments of the utility model, the side wall of the inner connecting part is provided with a ventilation groove extending along the length direction, the outer connecting part has a cavity inside, and the side wall of the outer connecting part has ventilation holes connected to the cavity, the ventilation holes, the cavity and the ventilation groove form the ventilation channel, and the waterproof breathable membrane is arranged in the cavity.

[0013] According to some embodiments of the utility model, the cavity includes a mounting groove, the side wall of the external connection part has the mounting groove, the bottom wall of the mounting groove is provided with an air port, the air port is connected to the air groove, the external connection part also includes a breathing window, the breathing window has the air hole, the breathing window is arranged in the mounting groove, the waterproof breathable membrane is located between the breathing window and the bottom wall of the mounting groove, and the breathing window can press the waterproof breathable membrane against the bottom wall of the mounting groove.

[0014] According to some embodiments of the present invention, the inner connecting portion has an external thread, the outer connecting portion is in the shape of a hexagonal column, and the inner connecting portion is coaxially arranged with the outer connecting portion.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a general schematic diagram of an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the decomposition of

[0019] Figure 3 yes Figure 1 sectional view of .

[0020] Reference numerals:

[0021] Wire 100, outer insulation 110, inner core 120, conductor 121, exposed section 1211, core insulation 122;

[0022] Connector 200, inner connecting portion 210, venting groove 211, outer connecting portion 220, venting hole 221, mounting groove 222, breathing window 223;

[0023] Double wall pipe 310;

[0024] Waterproof breathable membrane 400. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference Figures 1 to 3According to the first embodiment of the utility model, the waterproof connector includes a wire 100, a connector 200, a sealing structure and a waterproof breathable membrane 400. The wire 100 has an outer insulating skin 110 and at least one inner core wire 120. The inner core wire 120 includes a conductor 121 and a core wire insulating skin 122. The end of the conductor 121 extends out of the core wire insulating skin 122 to form an exposed section 1211. The connector 200 is annularly arranged on the wire 100. The connector 200 has an inner connecting portion 210 and an outer connecting portion 220. The inner connecting portion 210 is arranged on the inner side of the outer connecting portion 220. The inner core wire 120 includes a conductor 121 and a core wire insulating skin 122. The end of the conductor 121 extends out of the core wire insulating skin 122 to form an exposed section 1211. 120 passes through the inner connection part 210, and the connector 200 has a ventilation channel, one end of the ventilation channel is opened at the inner connection part 210, and the other end is opened at the outer connection part 220. The sealing structure includes a sealing body, and the sealing body is arranged on the core wire insulation skin 122 and the exposed section 1211. The sealing body can seal the gap between the exposed section 1211 and the core wire insulation skin 122. The waterproof breathable membrane 400 is arranged on the connector 200 and is located in the ventilation channel. The waterproof breathable membrane 400 can block the ventilation channel. The waterproof breathable membrane 400 is breathable and can block water and water vapor. The connector 200 is connected to the lamp via the inner connecting portion 210, and the outer connecting portion 220 is located outside the lamp. The exposed section 1211 of the wire 121 is used to electrically connect to the lamp. By providing a sealing body, the gap between the wire 121 and the core wire insulation 122 can be sealed to achieve a waterproof effect for the inner core wire 120, and the manufacturing cost is low. The air permeable channel provided on the connector 200 can connect the inside and outside of the lamp through the waterproof breathable membrane 400. Air circulation can be achieved through the waterproof breathable membrane 400, and water and water vapor are isolated from entering the lamp, so as to release the internal pressure of the lamp, thereby increasing the service life of the lamp.

[0029] Specifically, three inner core wires 120 are generally arranged in the wire material 100, and the inner core wires 120 are used to make electrical connection with the lamp. The conductor 121 in the inner core wire 120 can be set as a single-strand copper wire, and the exposed section 1211 is used to connect with the connector inside the lamp. By setting a sealing body at the junction of the exposed section 1211 and the core wire insulation skin 122, the gap between the conductor 121 and the core wire insulation skin 122 can be sealed, thereby preventing water and water vapor from entering the interior of the lamp from the gap, so as to avoid water mist inside the lamp, causing damage to the lamp, or affecting the lighting effect of the lamp. The connector 200 is generally connected to the connecting hole of the lamp. After the connection is completed, the inner connecting part 210 is in the The outer connection part 220 is inside the lamp, and the outer connection part 220 is outside the lamp. The connection method between the inner connection part 210 and the lamp is not specifically limited. The outer connection part 220 is generally provided for user operation and connection. A ventilation channel can be provided in the connector 200. An opening of the ventilation channel is provided in the inner connection part 210 so that it can be connected with the inner cavity of the lamp, and the other opening of the ventilation channel is provided on the outer connection part 220 so that it can be connected with the outside. A waterproof and breathable membrane 400 is provided in the ventilation channel for isolation. The waterproof and breathable membrane 400 is generally a polymer waterproof material. When working, the distance between gas molecules is relatively large, and the gas molecules can pass through the ventilation holes 221 of the waterproof and breathable membrane 400 during the diffusion movement. The distance between liquid molecules is smaller than the distance between air holes 221, and under the action of surface tension, liquid molecules cannot pass through the waterproof breathable membrane 400, that is, it plays a waterproof role. The waterproof breathable membrane 400 is generally made of polytetrafluoroethylene, and the specific structure is not limited. By setting up the waterproof breathable membrane 400, it is possible to isolate external water and water vapor to play a waterproof role, and the gas inside the lamp can be connected with the external gas, and the pressure inside the lamp can be released so that the components inside the lamp are not affected by the high pressure, thereby achieving the functions of both waterproofing and increasing the service life of the lamp.

[0030] Reference Figures 1 to 3 In some embodiments of the present invention, the sealing structure further includes a first sealing layer, the wire 121 includes multiple strands of wire, and the exposed section 1211 is tinned to form the first sealing layer to seal the gaps between the wires. The above structure has a simple manufacturing process, low manufacturing cost, and good waterproof effect.

[0031] Specifically, the conductor 121 can also be formed by winding multiple strands of copper wires. Therefore, the conductor 121 can easily draw external water and water vapor into the interior of the lamp through the siphon phenomenon. Therefore, by tinning the exposed section 1211, on the one hand, the tinning does not affect the original conductive performance, and on the other hand, the gaps between the multiple strands of copper wires can be penetrated and sealed, thereby preventing the siphon phenomenon from occurring, thereby achieving a waterproof effect. The above-mentioned process is simple, the manufacturing cost is low, and combined with the sealing body, the inner core wire 120 can be well sealed, and the waterproof effect is good.

[0032] Reference Figures 1 to 3 In some embodiments of the present invention, the sealing body includes a double-walled tube 310, which is arranged around the exposed section 1211 and the core wire insulation skin 122. After the double-walled tube 310 is heat-shrunk, the gap between the exposed section 1211 and the core wire insulation skin 122 is sealed to achieve a waterproof effect. The manufacturing process of the above structure is simple and the production cost is low.

[0033] Specifically, the double-walled tube 310 is sleeved at the junction of the exposed section 1211 and the core wire insulation skin 122, and then through heat shrinkage, the double-walled tube 310 can shrink and then tightly abut against the conductor 121 and the core wire insulation skin 122, thereby squeezing and sealing the gap between the conductor 121 and the core wire insulation skin 122 to achieve a waterproof effect, and the manufacturing process of the above structure is simple and the production cost is low.

[0034] In some embodiments of the present invention, the sealing body further includes a glue sealing layer, and the glue sealing layer is arranged on the inner wall of the double-walled tube 310. This can further improve the waterproof effect.

[0035] Specifically, glue may be provided on the inner wall of the double-walled tube 310 to form a glue sealing layer, so that after the double-walled tube 310 is heat-shrunk, the glue can further fill the gap, thereby further improving the waterproof effect.

[0036] Reference Figure 3 In some embodiments of the present invention, the outer insulating skin 110 has a wire channel, the inner core wire 120 is arranged in the wire channel, and the inner core wire 120 extends out of the wire channel, and a second sealing layer is arranged between the inner core wire 120 and the outer insulating skin 110, and the second sealing layer seals the gap between the inner core wire 120 and the outer insulating skin 110. The waterproof effect can be further improved.

[0037] Specifically, the outer insulating skin 110 wraps around the inner core wire 120, and the internal wire channel is for the inner core wire 120 to pass through, and there is a gap between the inner core wire 120 and the outer insulating skin 110. By setting a second sealing layer between the outer insulating skin 110 and the inner core wire 120, this part of the gap can be sealed. The structure of the second sealing layer is not specifically limited, so that after the connector 200 is connected to the lamp, the gap between the outer insulating skin 110 and the inner core wire 120 cannot introduce external water and water vapor into the interior of the lamp, which can further improve the waterproof effect.

[0038] In some embodiments of the present invention, the outer insulating skin 110 has an open end, and glue is poured from the open end into the wire channel to form a second sealing layer. The above structure has a simple manufacturing process and low production cost.

[0039] Specifically, the outer insulating skin 110 has an open end in the connector 200 so that the inner core wire 120 can extend out and connect to the connector inside the lamp. Glue can be poured into the open end, and the glue penetrates into the wire channel to fill the gap between the inner core wire 120 and the outer insulating skin 110. After solidification, a second sealing layer is formed to achieve a sealing effect. In addition, the above structure has a simple manufacturing process and a low production cost.

[0040] It should be noted that the second sealing layer is not limited to the above-mentioned embodiment, and other embodiments may also be adopted. For example, a sealing sleeve may be arranged in the line channel, and the inner core wire 120 is passed through the sealing sleeve, and the sealing sleeve is the second sealing layer.

[0041] In some embodiments of the present invention, the connector 200 is injection molded on the wire 100, and a glue sealing layer is provided between the connector 200 and the wire 100, which can further improve the waterproof effect.

[0042] Specifically, the connector 200 can be directly injection molded outside the wire 100, and glue can be first applied to the outside of the wire 100, and then the connector 200 can be set, so that the connector 200 and the outer side wall outside the wire can be sealed by the glue sealing layer, which can further improve the waterproof effect.

[0043] Reference Figures 1 to 3 In some embodiments of the present invention, the side wall of the inner connecting part 210 is provided with a venting groove 211 extending along the length direction, the outer connecting part 220 has a cavity inside, and the side wall of the outer connecting part 220 has a venting hole 221 connected to the cavity, the venting hole 221, the cavity and the venting groove 211 form a venting channel, and the waterproof breathable membrane 400 is provided in the cavity. The above structure is relatively simple and has low production cost.

[0044] Specifically, the inner connecting portion 210 can be cylindrical, and a ventilation groove 211 can be set on the side wall. The ventilation groove 211 extends to the end along the length direction of the inner connecting portion 210, and the ventilation groove 211 can be connected to the cavity inside the lamp. A cavity can be set in the outer connecting portion 220, and a ventilation hole 221 can be opened on the side wall of the outer connecting portion 220. The ventilation hole 221 is connected to the cavity, and the cavity is connected to the ventilation groove 211. A waterproof breathable membrane 400 is set in the cavity. After the external gas enters from the ventilation hole 221, it needs to pass through the waterproof breathable membrane 400 first, then enter the ventilation groove 211, and then enter the interior of the lamp. The waterproof breathable membrane 400 can isolate water and water vapor, and can also isolate dust, while the interior of the lamp can be connected to the external gas to balance the air pressure. The above structure is relatively simple and has low production cost.

[0045] It should be noted that the arrangement of the ventilation channel is not limited to the above-mentioned embodiment, and other embodiments may also be adopted. For example, a channel may be arranged inside the inner connecting part 210, and an opening may be provided at the end of the inner connecting part 210 to connect to the interior of the lamp through the channel.

[0046] Reference Figures 1 to 3 In some embodiments of the utility model, the cavity includes a mounting groove 222, the side wall of the external connection part 220 has a mounting groove 222, the bottom wall of the mounting groove 222 is provided with an air port, the air port is connected to the air slot 211, the external connection part 220 also includes a breathing window 223, the breathing window 223 has an air hole 221, the breathing window 223 is arranged in the mounting groove 222, the waterproof breathable membrane 400 is located between the breathing window 223 and the bottom wall of the mounting groove 222, and the breathing window 223 can press the waterproof breathable membrane 400 against the bottom wall of the mounting groove 222.

[0047] Specifically, a mounting groove 222 can be set on the side wall of the external connection part 220, the breathing window 223 matches the shape of the mounting groove 222, and can be set to an interference fit, and an air hole 221 is set on the breathing window 223. The waterproof breathing membrane is placed on the bottom wall of the mounting groove 222, and then the waterproof breathable membrane 400 is pressed against the bottom wall of the mounting groove 222 through the breathing window 223. The assembly is simple, and when the waterproof breathable membrane 400 needs to be replaced, it can be replaced by simply removing the breathing window 223, and the disassembly and assembly are convenient.

[0048] Reference Figure 1 to Figure 2 In some embodiments of the present invention, the inner connection part 210 has an external thread, the external connection part 220 is in a hexagonal column shape, and the inner connection part 210 and the external connection part 220 are coaxially arranged. Specifically, the inner connection part 210 can be set to a cylindrical shape, and the outer side wall is provided with an external thread, and the inner connection part 210 can be matched with the threaded hole of the lamp. It can be understood that a sealing ring is provided between the lamp and the joint 200 for sealing, and the external connection part 220 can be set to a hexagonal shape, so that the user can tighten it with a tool.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Waterproof joint, characterized in that: include: A wire (100) having an outer insulation skin (110) and at least one inner core wire (120), wherein the inner core wire (120) comprises a conductor (121) and a core wire insulation skin (122), and an end of the conductor (121) extends out of the core wire insulation skin (122) to form an exposed section (1211); A connector (200) is looped around the wire (100), the connector (200) comprises an inner connecting portion (210) and an outer connecting portion (220), the inner connecting portion (210) is arranged inside the outer connecting portion (220), the inner core wire (120) passes through the inner connecting portion (210), and a ventilation channel is provided inside the connector (200), one end of the ventilation channel is opened at the inner connecting portion (210), and the other end is opened at the outer connecting portion (220); A sealing structure, comprising a sealing body, wherein the sealing body is arranged on the core wire insulation skin (122) and the exposed section (1211), and the sealing body can seal the gap between the exposed section (1211) and the core wire insulation skin (122); The waterproof breathable membrane (400) is provided on the joint member (200) and is located in the breathable passage. The waterproof breathable membrane (400) can block the breathable passage. The waterproof breathable membrane (400) is breathable and can block water and water vapor.

2. The waterproof joint according to claim 1, characterized in that: The sealing structure further comprises a first sealing layer, the conductive wire (121) comprises a plurality of wire strands, and the exposed section (1211) is tinned to form the first sealing layer so as to seal the gaps between the wire strands.

3. The waterproof joint according to claim 1, characterized in that: The sealing body comprises a double-walled tube (310), the double-walled tube (310) being arranged around the exposed section (1211) and the core wire insulation skin (122), and the double-walled tube (310) sealing the gap between the exposed section (1211) and the core wire insulation skin (122) after heat shrinkage.

4. The waterproof joint according to claim 3, characterized in that: The sealing body further comprises a glue sealing layer, and the glue sealing layer is arranged on the inner wall of the double-walled tube (310).

5. The waterproof joint according to claim 1, characterized in that: The outer insulating skin (110) has a wire channel inside, the inner core wire (120) is arranged in the wire channel, and the inner core wire (120) extends out of the wire channel, and a second sealing layer is provided between the inner core wire (120) and the outer insulating skin (110), and the second sealing layer seals the gap between the inner core wire (120) and the outer insulating skin (110).

6. The waterproof joint according to claim 5, characterized in that: The outer insulating skin (110) has an open end, and glue is poured from the open end into the wire channel to form the second sealing layer.

7. The waterproof joint according to claim 1, characterized in that: The connector (200) is injection molded on the wire (100), and a glue sealing layer is provided between the connector (200) and the wire (100).

8. The waterproof joint according to claim 1, characterized in that: The side wall of the inner connecting part (210) is provided with a ventilation groove (211) extending along the length direction, the outer connecting part (220) has a cavity inside, and the side wall of the outer connecting part (220) has a ventilation hole (221) connected to the cavity, the ventilation hole (221), the cavity and the ventilation groove (211) form the ventilation channel, and the waterproof breathable membrane (400) is arranged in the cavity.

9. The waterproof joint according to claim 8, characterized in that: The cavity comprises a mounting groove (222), the side wall of the external connection part (220) has the mounting groove (222), the bottom wall of the mounting groove (222) is provided with an air vent, the air vent is communicated with the air vent groove (211), the external connection part (220) further comprises a breathing window (223), the breathing window (223) has the air vent (221), the breathing window (223) is arranged in the mounting groove (222), the waterproof breathable membrane (400) is located between the breathing window (223) and the bottom wall of the mounting groove (222), and the breathing window (223) can press the waterproof breathable membrane (400) against the bottom wall of the mounting groove (222).

10. The waterproof joint according to claim 1, characterized in that: The inner connecting portion (210) has an external thread, the outer connecting portion (220) is in the shape of a hexagonal column, and the inner connecting portion (210) and the outer connecting portion (220) are coaxially arranged.

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