A waterproof joint

Abstract

The application relates to a waterproof joint in the technical field of optical fiber joints, which comprises a wiring terminal, a butt joint channel for inserting an optical fiber and an elastic sheet for limiting the optical fiber in the channel; a wiring column, which is provided with a wiring slot for inserting the wiring terminal, and a top block in the wiring slot, which is used for pushing open the elastic sheet to insert the optical fiber into the butt joint channel; a threaded sleeve, which is inserted into the wiring column in a sliding mode and drives the top block to slide to make the elastic sheet give way or reset; a protective tube, which is sleeved on one side of the wiring column provided with the wiring slot to protect the wiring column and is threadedly connected with the wiring column, and the inside of the protective tube is provided with a driving rod for driving the threaded sleeve to slide; when the protective tube slides towards the wiring column, the threaded sleeve will slide in the same direction as the protective tube, and at this time, the elastic sheet is in a state of limiting the optical fiber in the butt joint channel. The application has the effect of being convenient for butt joint.

Description

Technical Field

[0001] This application relates to the field of fiber optic connector technology, and in particular to a waterproof connector. Background Technology

[0002] Waterproof connectors, as the name suggests, are safe and reliable connectors that can be used in wet environments. Examples include LED streetlights, lighthouses, industrial equipment, and electronic devices, all of which require waterproof connectors.

[0003] The waterproof connector includes a threaded conduit and a clamping nut. A retaining ring is integrally formed on the outer wall of the conduit's central section. During installation, a hole is drilled in the housing of the corresponding device. The end of the threaded conduit furthest from the clamping nut is then inserted into the hole, and a nut is threaded onto the end of the conduit inside the housing. The nut clamps the housing with the retaining ring, thus installing the conduit onto the housing. Next, one end of the optical fiber is passed through the clamping nut and the threaded conduit from outside the housing, electrically connecting the optical fiber to the optical fibers on the circuit board or other electronic components inside the housing. A rubber sleeve is located at the end of the threaded conduit near the clamping nut, with multiple clamping tabs circumferentially spaced and connected to the threaded conduit. The clamping nut is threaded onto the threaded conduit and has a guide surface inside. When the clamping nut is tightened, the multiple clamping tabs converge under the action of the guide surface, causing the rubber sleeve to clamp the optical fiber, thus limiting its position and waterproofing the area where the optical fiber passes through the housing.

[0004] In related technologies, circuit boards or other electronic components are first installed inside a housing before wiring. To facilitate installation and wiring, an opening is typically provided on one side of the housing. To reduce the impact of dust or water droplets on the circuit board, a cover is placed over the opening after installation. During wiring, after one end of the optical fiber passes through a waterproof connector inside the housing, the worker opens the cover and connects the optical fiber to the one on the circuit board through the opening to establish an electrical connection. Finally, the cover is replaced, making the wiring process rather cumbersome. Summary of the Invention

[0005] To facilitate wiring, this application provides a waterproof connector.

[0006] This application provides a waterproof connector, which adopts the following technical solution: A waterproof connector, comprising: The terminal block has a mating channel for fiber optic cable insertion and a spring clip to confine the fiber optic cable within the channel; The terminal block has a slot for inserting the terminal block, and a top block for opening the spring clip to allow the optical fiber to be inserted into the docking channel is slidably installed in the slot. A threaded sleeve is slidably inserted into the terminal block and drives the top block to slide, causing the spring to reposition or reset. A protective tube is sleeved on the side of the terminal block where the terminal slot is opened to protect the terminal block and is threadedly connected to the terminal block. A drive rod is provided inside the protective tube to drive the threaded sleeve to slide. When the protective tube slides closer to the terminal block, the threaded sleeve will slide in the same direction as the protective tube. At this time, the spring is in a state of limiting the optical fiber in the docking channel.

[0007] By adopting the above technical solution, when multiple different optical fibers need to be installed on a waterproof connector, rotating the protective tube moves it closer to the terminal block. At this time, the threaded sleeve rotates and undergoes axial displacement under the action of the drive rod, thereby driving multiple top blocks to slide simultaneously and push open the corresponding spring clips. Then, the optical fiber is inserted into the corresponding mating channel. Finally, rotating the threaded sleeve top block in the opposite direction stops the action on the spring clips, thus the spring clips confine the optical fiber within the mating channel, making the connection process more convenient.

[0008] Optionally, the terminal block is provided with an annular groove for the threaded sleeve to be threadedly inserted and threadedly connected, and the threaded sleeve is provided with an internal thread that is threadedly connected to the top block. A cover plate is provided at the opening of the wiring groove near the protective tube. A limiting hole is provided on the cover plate. The top block part passes through the limiting hole, inserts into the docking channel, and abuts against the spring piece.

[0009] By adopting the above technical solution, the outer wall of the threaded sleeve is threadedly connected to the terminal block, and the inner wall of the threaded sleeve is threadedly connected to the top block. The top block is partially inserted into the docking channel and is limited. This makes it difficult for the top block to rotate synchronously with the rotation of the threaded sleeve, thereby improving the stability of the top block during directional sliding.

[0010] Optionally, the drive rod is inserted into the threaded sleeve and fixedly connected to the protective tube, and the inner wall of the threaded sleeve is provided with an abutment block for the drive rod to abut after rotation.

[0011] By adopting the above technical solution, when the top block pushes the spring open, the protective tube is rotated from the outside, and when the drive rod rotates to the position of the abutting block, the drive threaded sleeve will rotate together, thus making it easier to drive the top block to slide.

[0012] Optionally, the spring is provided with two clamping parts, one of which is located in the wiring groove on the side close to the protective tube, and the other of which is located in the wiring groove on the side away from the protective tube. An elastic push rod assembly is provided on the side of the terminal block opposite to the protective tube. The elastic push rod assembly is used to push open the spring piece on the side opposite to the protective tube.

[0013] By adopting the above technical solution, when it is necessary to connect the optical fiber to another end, pressing the elastic push rod assembly will open the corresponding spring piece, facilitating the insertion of the optical fiber into the connection channel. After successful connection, the elastic push rod assembly can return to its original state before deformation, allowing the spring piece to confine the optical fiber within the connection channel.

[0014] Optionally, the elastic push rod assembly includes a push rod that slides into the wiring groove to push open the spring piece, and a deformable arc piece installed on the side of the wiring post away from the protective tube, which drives the push rod to slide by pressing.

[0015] By adopting the above technical solution, when it is necessary to open the corresponding spring plate, press the deformable arc plate. After the deformable arc plate deforms, drive the ejector rod to move and open the spring plate so that the optical fiber can be inserted into the docking channel. Then release the deformable arc plate. Under the elastic force of the spring plate, the ejector rod drives the deformable arc plate to restore its deformation, thus realizing complex functions through a simple structure.

[0016] Optionally, the elastic push rod assembly further includes a release rod connected to the deformable arc plate and cooperating with the threaded sleeve; when the threaded sleeve moves toward the terminal block, it abuts against the release rod to drive the deformable arc plate to restore its deformation.

[0017] By adopting the above technical solution, when the threaded sleeve is rotated, the threaded sleeve will abut against the release rod and drive the release rod to move, thereby restoring the deformed arc plate to its initial state before deformation. Compared with relying entirely on the elastic force of the spring plate to drive the deformed arc plate to restore its deformation, the above structure can make the deformation arc plate more stable when restoring its deformation through the release rod.

[0018] Optionally, the terminal block has a cable hole for inserting an optical fiber on the side away from the protective tube. The cable hole is connected to the wiring groove. The wall of the cable hole has a snap-fit ​​hole for snapping the optical fiber. The snap-fit ​​hole passes through the terminal block on the side away from the protective tube.

[0019] By adopting the above technical solution, when connecting multiple optical fibers, one optical fiber is first inserted into the connection channel, then the optical fiber is inserted into the cable hole and the optical fiber is clamped and limited through the clamping hole, and then the other optical fibers are inserted one by one, which makes it more convenient to connect multiple optical fibers.

[0020] Optionally, a rubber retaining ring is inserted into the snap-fit ​​hole, and the inner wall of the rubber retaining ring is provided with a plurality of circumferentially spaced protrusions to clamp the optical fiber.

[0021] By adopting the above technical solution, the rubber retainer ring has a certain elastic deformation capability, which allows optical fibers of different diameters to be clamped into the clamping hole. The raised strip provides anti-slip properties, making the optical fiber more stable after being clamped into the clamping hole.

[0022] Optionally, the spring is tilted within the docking channel to facilitate fiber insertion, and the top block is provided with an inclined surface that fits against the spring.

[0023] By adopting the above technical solution, the tilted design of the spring guides the optical fiber, facilitating its insertion. The tilted surface on the top block increases the contact area between the top block and the spring, thereby improving the stability when the top block pushes the spring open.

[0024] Optionally, the elastic push rod assembly further includes a connecting plate, and multiple push rods are provided, all of which are disposed on the connecting plate, and the connecting plate is connected to the release rod.

[0025] By adopting the above technical solution, multiple top rods correspond to multiple springs. When inserting multiple optical fibers, it is only necessary to drive the connecting plate to move so that multiple springs can open the corresponding docking channels, making it more convenient to dock multiple optical fibers.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The waterproof connector of this application, through the setting of the drive rod, causes the threaded sleeve to rotate and undergo axial displacement under the action of the drive rod when the protective tube is rotated, driving multiple top blocks to slide simultaneously and push open the corresponding spring pieces, so as to facilitate the insertion of optical fiber into the docking channel; 2. By setting the elastic push rod assembly, this application can push open the clamping part at the other end of the spring piece, making it easier for the optical fiber to be inserted into the docking channel from the other end of the connector for docking; 3. By setting a release rod, when the threaded sleeve rotates and abuts against the release rod, it drives the release rod to move, thereby restoring the deformed arc plate to its initial state before deformation, making the deformed arc plate more stable when it recovers its deformation. Attached Figure Description

[0027] Figure 1 This is an overall exploded view of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the terminal block structure in an embodiment of this application.

[0029] Figure 3 This is an exploded view of the terminal block and top block in an embodiment of this application.

[0030] Figure 4 This is a cross-sectional schematic diagram of the fit between the threaded sleeve and the protective tube according to an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the structure of the elastic push rod assembly in the embodiments of this application.

[0032] Figure 6 This is a cross-sectional view of the elastic push rod assembly inside the connector in an embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the structure of the terminal block away from the protective tube in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Terminal block; 11. Terminal housing; 111. Connecting channel; 112. Positioning piece; 113. Snap-fit ​​groove; 12. Spring piece; 121. Snap-fit ​​part; 122. Pressing part; 123. Snap-fit ​​ball; 2. Terminal post; 21. Mounting part; 22. Terminal groove; 23. Cover plate; 231. Limiting hole; 24. Annular groove; 25. Arrangement through hole; 26. Mounting end cap; 261. Cable hole; 262. Snap-fit ​​hole ; 263, Rubber retaining ring; 2631, Raised strip; 3, Threaded sleeve; 31, Abutting block; 4, Protective tube; 41, Drive rod; 5, Top block; 51, Inclined surface; 52, Connecting notch; 53, Limiting protrusion; 54, Anti-detachment block; 6, Elastic top rod assembly; 61, Ejector rod; 62, Deformation arc plate; 63, Release rod; 631, Extension block; 64, Connecting plate; 641, Center plate; 642, Connecting rod; 65, Connecting column. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0036] This application discloses a waterproof connector.

[0037] Reference Figure 1 A waterproof connector includes a terminal block 1, a terminal post 2 for inserting the terminal block 1 into, a threaded sleeve 3 disposed within the terminal post 2, and a protective tube 4 sleeved on the outside of the terminal post 2.

[0038] Reference Figure 1 and Figure 2 The terminal block 1 includes a housing 11 and a spring clip 12 disposed within the housing 11 for positioning the optical fiber. The housing 11 is U-shaped and has a mating channel 111 for inserting the optical fiber. The spring clip 12 is snapped into the mating channel 111. The housing 11 is bent in the inner wall of the mating channel 111 to form at least one positioning piece 112 for holding the spring clip 12. In this embodiment, the waterproof connector has three terminals 1, which are evenly spaced circumferentially along the axis of the terminal block 2.

[0039] The spring clip 12 includes a snap-fit ​​portion 121 that engages with the connector housing 11, and clamping portions 122 disposed at both ends of the snap-fit ​​portion 121 for limiting and clamping the optical fiber. The snap-fit ​​portion 121 has multiple snap-fit ​​balls 123 stamped on its end face facing the side wall of the docking channel 111. The connector housing 11 has snap-fit ​​grooves 113 for the snap-fit ​​balls 123 to be snapped into. The clamping portions 122 are arranged at an angle, with two clamping portions 122 inclined inwards away from the openings on both sides of the docking channel 111, i.e., the two clamping portions 122 are inclined towards each other, so as to guide the insertion of the optical fiber.

[0040] During the docking process, the optical fiber is inserted from the openings on both sides of the docking channel 111, the clamping part 122 is pushed open, the optical fiber is inserted into the docking channel 111, and then the clamping part 122 is reset and pressed on the optical fiber, and the two optical fibers are docked between the two clamping parts 122.

[0041] Reference Figure 1 and Figure 3 The terminal block 2 has through holes extending through both sides, and a mounting portion 21 is integrally formed within the through holes. A wiring groove 22 is formed between the mounting portion 21 and the inner hole of the terminal block 2 for the corresponding insertion of the terminal blocks 1. In this embodiment, the number of wiring grooves 22 is the same as the number of terminal blocks 1. A cover plate 23 for limiting the position of the terminal blocks 1 is inserted and mounted on the end face of the mounting portion 21 of the terminal block 2. The cover plate 23 has limiting holes 231 extending through both end faces and corresponding to the wiring grooves 22.

[0042] Combination Figure 2 The terminal 2 also has a top block 5 slidably installed in the wiring groove 22 for opening the spring piece 12. Part of the top block 5 passes through the limiting hole 231 and is inserted into the docking channel 111, and the top block 5 and the spring piece 12 abut against each other.

[0043] The surface of the top block 5 that abuts against the spring piece 12 is an inclined surface 51. The inclined surface 51 and the clamping part 122 are inclined in the same direction, which facilitates the top block 5 to push open the clamping part 122 for the insertion of the optical fiber. The end face of the top block 5 facing the limiting hole 231 has a communicating notch 52 that communicates with the wiring groove 22, for the optical cable to pass through and be inserted into the wiring groove 22. The top block 5 has an integrally formed limiting protrusion 53 at the end away from the inclined surface 51, which is used to limit the depth of the top block 5 inserted into the wiring groove 22. The other end of the top block 5 that is connected to the limiting protrusion 53 has an anti-disengagement block 54 to prevent disengagement.

[0044] Reference Figure 3 and Figure 4An annular groove 24 for inserting a threaded sleeve 3 is provided between the inner wall of the through hole of the top block 5 and the terminal 2. The annular groove 24 extends through both sides of the terminal 2. The threaded sleeve 3 is threadedly connected to the inner wall of the annular groove 24. The inner wall of the threaded sleeve 3 has an internal thread that mates with the outer thread of the top block 5. When the threaded sleeve 3 rotates along the axial direction, the threaded sleeve 3 and the top block 5 are threadedly connected. The top block 5 is positioned within the limiting hole 231, and the threaded sleeve 3 drives the top block 5 to slide along the axial direction, thereby causing the top block 5 to push open the spring piece 12.

[0045] The protective tube 4 is threaded to the outside of the terminal 2 to protect it. The protective tube 4 and terminal 2 are threaded together, and symmetrically arranged on the inner wall of the protective tube 4 are drive rods 41 that drive the threaded sleeve 3 to rotate. The drive rods 41 and the protective tube 4 are integrally formed or welded together, with the rod portion of the drive rod 41 inserted into the inner hole of the threaded sleeve 3. An abutment block 31 is integrally provided on the inner wall of the threaded sleeve 3 for the drive rod 41 to abut against after rotation.

[0046] When the protective tube 4 is threaded onto the terminal 2, the drive rod 41 moves toward the inner hole of the threaded sleeve 3. When the drive rod 41 extends into the threaded sleeve 3, the drive rod 41 rotates and abuts against the abutment block 31, causing the threaded sleeve 3 to rotate synchronously.

[0047] Reference Figure 4 , Figure 5 and Figure 6 The terminal block 2 is also provided with an elastic push rod assembly 6 on the side away from the protective tube 4. The elastic push rod assembly 6 is used to push open the pressing part 122 on the side of the spring piece 12 away from the top block 5.

[0048] The elastic push rod assembly 6 includes a push rod 61 that slides into the wiring groove 22 to push open the clamping part 122, a deformable arc plate 62 installed on the outer end face of the terminal post 2 away from the protective tube 4, a release rod 63 for cooperating with the threaded sleeve 3, and a connecting plate 64 for connecting the deformable arc plate 62, the push rod 61 and the release rod 63.

[0049] The connecting plate 64 includes a center plate 641 and connecting rods 642 circumferentially disposed along the center plate 641. In this embodiment, the connecting plate 64 has six connecting rods 642. The ends of the connecting rods 642 away from the center plate 641 are staggered with ejector rods 61 or release rods 63. The center plate 641 is arranged on the inner end face of the terminal block 2, and the center plate 641 and the terminal block 2 are coaxially arranged. The center plate 641 and the deformable arc plate 62 are arranged correspondingly, and the center plate 641 and the deformable arc plate 62 are connected by a connecting post 65. The terminal block 2 has a through hole 25 for sliding of the connecting post 65. The deformable arc plate 62 is a semi-circular arc plate with a certain deformation capacity.

[0050] The ejector rod 61 is located at the end of the connecting rod 642, and is arranged correspondingly to the clamping part 122. It is used to push the clamping part 122 toward the top block 5 to facilitate the insertion of the optical fiber. The ejector rod 61 is fixed to the connecting plate 64 by welding or other means.

[0051] When the installer presses the deformable arc plate 62, the deformable arc plate 62 deforms, driving the connecting column 65 to slide within the through hole 25, which in turn drives the ejector rod 61 to move toward the pressing part 122, causing the spring piece 12 to be pushed open; when the deformable arc plate 62 is released, the ejector rod 61, under the elastic force of the spring piece 12, drives the deformable arc plate 62 to restore its deformation, so that the elastic ejector rod assembly 6 can be reset.

[0052] A release rod 63 is located at the end of the connecting rod 642, between two adjacent terminals 1. The ends of the release rod 63 and the threaded sleeve 3 facing the connecting plate 64 correspond to each other. The length of the release rod 63 is approximately half the axial length of the inner hole of the terminal 2. When the threaded sleeve 3 rotates and abuts against the release rod 63, the threaded sleeve 3 can drive the release rod 63 to move towards the connecting plate 64, thereby moving the entire elastic push rod assembly 6 away from the terminal 1. The cooperation between the release rod 63 and the threaded sleeve 3 makes the reset of the deformable arc plate 62 more stable. The end of the release rod 63 also has an integrally formed extension block 631 for the threaded sleeve 3 to abut against.

[0053] Reference Figure 6 and Figure 7 The terminal block 2 has a mounting end cap 26 at the end furthest from the protective tube 4, which covers the bottom opening of the terminal block 2. The deformable arc plate 62 is mounted on the outer end face of the mounting end cap 26. The mounting end cap 26 has cable holes 261 for inserting optical fibers, and the cable holes 261 correspond one-to-one with the wiring slots 22.

[0054] The inner wall of the cable hole 261 also extends horizontally to form a clamping hole 262 for clamping optical fibers. One end of the clamping hole 262 penetrates the outer end face of the mounting end cover 26. A rubber retainer 263 is clamped inside the clamping hole 262 in the mounting end cover 26, and the rubber retainer 263 fits against the inner wall of the clamping hole 262 and the cable hole 261. The rubber retainer 263 has an integrally formed protrusion 2631 for clamping optical fibers on the inner wall of the clamping hole 262. The protrusion 2631 is arranged circumferentially at intervals along the axial direction of the clamping hole 262. The cover plate 23 also has a clamping hole 262 for clamping optical fibers, and a rubber retainer 263 is arranged inside the clamping hole 262.

[0055] The implementation principle of a waterproof connector in this application embodiment is as follows: When multiple optical fibers need to be connected in the waterproof connector, press the deformable arc plate 62 to open the clamping part 122 on the side of the spring plate 12 near the mounting end cover 26, pass a set of optical fibers through the cable hole 261 of the mounting end cover 26 and continue to insert them. According to the insertion distance, it is known that the optical fiber is located in the docking channel 111 of the terminal block 1. Then release the deformable arc plate 62, the push rod 61 resets, and the clamping part 122 also returns to its deformation. Then, another set of optical fibers is inserted through the opening of the protective tube 4 into the limiting hole 231 of the cover plate 23. The protective tube 4 is rotated, and the drive rod 41 rotates inside the protective tube 4. When the drive rod 41 extends into the threaded sleeve 3, the drive rod 41 rotates and abuts against the abutment block 31, causing the threaded sleeve 3 to rotate synchronously. The threaded sleeve 3 drives the top block 5 to slide in the axial direction, so that the top block 5 pushes open the pressing part 122 on the side of the spring piece 12 away from the mounting end cover 26. At this time, the optical fiber is inserted into the docking channel 111 and docked with the optical fiber in the docking channel 111. Finally, the threaded sleeve 3 is rotated in the opposite direction, so that the contact top block 5 presses against the spring piece 12, and the pressing part 122 presses against the optical fiber.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof connector, characterized in that, include: The terminal block (1) has a mating channel (111) for inserting an optical fiber and a spring (12) for confining the optical fiber within the channel. The terminal block (2) has a wiring groove (22) for inserting the terminal block (1), and a top block (5) for opening the spring piece (12) to allow the optical fiber to be inserted into the docking channel (111) is slidably installed in the wiring groove (22). The threaded sleeve (3) slides into the terminal (2) and drives the top block (5) to slide so that the spring piece (12) is displaced or reset; The protective tube (4) is sleeved on the side of the terminal block (2) where the terminal slot (22) is opened to protect the terminal block (2) and is threadedly connected to the terminal block (2). The protective tube (4) is provided with a drive rod (41) that drives the threaded sleeve (3) to rotate. When the threaded sleeve (3) rotates and undergoes axial displacement under the action of the drive rod (41), multiple top blocks (5) are driven to slide simultaneously to push open the corresponding spring pieces (12), making it easier to insert the optical fiber into the corresponding docking channel (111); when the threaded sleeve (3) is rotated in the opposite direction, the top blocks (5) no longer act on the spring pieces (12), so that the spring pieces (12) limit the optical fiber to the docking channel (111). The terminal block (2) is provided with an annular groove (24) for the threaded sleeve (3) to be threadedly inserted and threadedly connected, and the threaded sleeve (3) is provided with an internal thread that is threadedly connected to the top block (5); The wiring groove (22) is covered with a cover plate (23) at the groove opening on the side near the protective tube (4). A limiting hole (231) is opened on the cover plate (23). The top block (5) passes through the limiting hole (231) and is inserted into the docking channel (111) and can abut against the spring piece (12). The spring (12) is provided with two pressing parts (122), one of which is located in the wiring groove (22) on the side close to the protective tube (4), and the other pressing part (122) is located in the wiring groove (22) on the side away from the protective tube (4). The terminal block (2) is provided with an elastic push rod assembly (6) on the side away from the protective tube (4). The elastic push rod assembly (6) is used to push open the clamping part (122) on the side away from the protective tube (4).

2. A waterproof connector according to claim 1, characterized in that: The drive rod (41) is inserted into the threaded sleeve (3) and fixedly connected to the protective tube (4). The inner wall of the threaded sleeve (3) is provided with an abutment block (31) for the drive rod (41) to abut after rotation.

3. A waterproof connector according to claim 1, characterized in that: The elastic push rod assembly (6) includes a push rod (61) that slides into the wiring groove (22) to push open the spring piece (12) and a deformable arc piece (62) installed on the side of the wiring post (2) away from the protective tube (4) and drives the push rod (61) to slide by pressing.

4. A waterproof connector according to claim 3, characterized in that: The elastic push rod assembly (6) also includes a release rod (63) connected to the deformable arc plate (62) and cooperating with the threaded sleeve (3); when the threaded sleeve (3) moves toward the terminal (2), it abuts against the release rod (63) to drive the deformable arc plate (62) to recover its deformation.

5. A waterproof connector according to claim 1, characterized in that: The terminal block (2) has a cable hole (261) for inserting optical fiber on the side away from the protective tube (4). The cable hole (261) is connected to the terminal groove (22). The cable hole (261) has a clamping hole (262) for clamping optical fiber on the wall of the cable hole (261). The clamping hole (262) penetrates the side of the terminal block (2) away from the protective tube (4).

6. A waterproof connector according to claim 5, characterized in that: A rubber retaining ring (263) is inserted into the retaining hole (262), and a plurality of protrusions (2631) for clamping the optical fiber are arranged circumferentially on the inner wall of the rubber retaining ring (263).

7. A waterproof connector according to claim 1, characterized in that: The spring piece (12) is inclinedly disposed in the docking channel (111) to facilitate the insertion of optical fiber, and the top block (5) is provided with an inclined surface (51) that fits against the spring piece (12).

8. A waterproof connector according to claim 4, characterized in that: The elastic push rod assembly (6) also includes a connecting plate (64), and multiple push rods (61) are provided. All of the multiple push rods (61) are provided on the connecting plate (64), and the connecting plate (64) is connected to the release rod (63).

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