A sealed waterproof joint device at a cable branch

Abstract

The utility model relates to cable connection technical field, concretely is a kind of cable branch place sealing waterproof joint device. Device includes fixed plate and the connecting pipe being set to the fixed plate top. The end of connecting pipe is provided with quick plug mechanism, and quick plug mechanism includes the shell of sliding sleeve setting in the outside of connecting pipe, and the outer wall of shell is rotatably connected with locking knob, and locking knob is clamped into the groove of connecting pipe and drives shell to be pressed tightly sealing ring inward;The outer wall of connecting pipe is also fixed with fixed mechanism, and it includes protective shell, button and the top rod of connecting button, and the bottom of top rod is abutted with ball, and the movement of top rod is controlled by pressing button, and then the radial telescoping of ball is controlled to be clamped into or separated from fixed plate. The utility model realizes the threadless quick sealing connection of cable interface by quick plug mechanism, and the quick disassembly and assembly of device main body on base are realized by ball lock type fixed mechanism, greatly improve the efficiency of on-site construction and overhaul.

Description

Technical Field

[0001] This utility model relates to the field of cable connection and installation accessories, and in particular to a sealing and waterproof joint device for cable branches. Background Technology

[0002] In the process of power transmission, industrial automation control, and communication network laying, cable branching is an extremely common basic operation. To ensure the stability and safety of circuit transmission, especially in harsh environments such as outdoors, in humid conditions, or with high dust levels, the connection devices at cable branch points usually need to have good sealing and waterproof performance to prevent moisture intrusion that could lead to short circuits or contact corrosion. At the same time, the branching devices also need to be firmly installed on specific bases or walls to prevent external forces from dragging the lines off.

[0003] Currently, most existing cable branch joint devices use threaded fastening for cable connection and sealing, that is, waterproofing is achieved by tightening the nut to compress the internal rubber ring. Although this method is simple in structure, it has obvious limitations in actual installation and maintenance. On the one hand, threaded connections require operators to manually tighten them multiple times, and the sealing effect largely depends on the tightening force. Too little force will result in a poor seal, while too much force can easily damage the threads or the cable. Furthermore, when frequent disconnection and reassembly are required for line maintenance, the disassembly and reassembly process is time-consuming and labor-intensive.

[0004] On the other hand, for the overall fixing of the connector assembly to the mounting surface, existing technologies typically use bolts directly through the mounting ears to lock it to the fixed surface. When it is necessary to replace the entire connector assembly, inspect the back, or perform maintenance in confined spaces, operators must use screwdrivers, wrenches, and other auxiliary tools to remove the fixing bolts one by one. This not only further reduces the efficiency of on-site operations but also increases the risk of parts falling and being lost during high-altitude operations or in complex environments. In summary, existing technologies lack a branch connector solution that can simultaneously achieve rapid sealing connection of cable interfaces and rapid disassembly and fixing of the main body of the device.

[0005] Therefore, this utility model proposes a sealing and waterproof joint device for cable branches to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems existing in the cable branch sealing and waterproof joint device, such as low efficiency of cable interface disassembly and connection, unstable sealing effect due to manual operation, and difficulty in quick tool-free fixing and disassembly of the device on the installation base, resulting in time-consuming and labor-intensive on-site inspection and maintenance, this utility model aims to provide a cable branch sealing and waterproof joint device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a sealing and waterproof joint device for cable branching, comprising: a fixing plate; a connecting pipe disposed above the fixing plate; and a quick-connect mechanism and a fixing mechanism respectively disposed on the end and side wall of the connecting pipe.

[0008] The connecting tube end is provided with the quick-connect mechanism, which includes a housing slidably sleeved on the outside of the connecting tube end. A locking block is rotatably connected to the outer wall of the housing via a fixing pin. Furthermore, the outer wall of the connecting tube has an annular groove that mates with the locking block. The locking block engages in the annular groove, and lever principle is used to move the housing inward and tighten it.

[0009] In addition, the fixing mechanism is fixedly connected to the outer wall of the connecting tube. The fixing mechanism includes a protective shell fixed to the outside of the connecting tube. A button is slidably connected inside the protective shell. A push rod is fixedly connected to the bottom of the button. A ball bearing for locking into the inside of the fixing plate is abutted at the bottom of the push rod. The radial position of the ball bearing is controlled by the vertical movement of the push rod, thereby realizing the locking and separation of the device from the fixing plate.

[0010] Preferably, in order to accurately guide the movement of the push rod and limit the position of the ball, the fixing mechanism further includes a fixing post located inside the protective shell. The fixing post is fixedly connected to the outer wall of the connecting tube, and the fixing post is a hollow tubular structure. The push rod slides through the inside of the fixing post.

[0011] Preferably, in order to achieve automatic reset of the button and the push rod to maintain normal locking, a spring is sleeved on the outer wall of the push rod, with the two ends of the spring abutting against the lower surface of the button and the upper end face of the fixing post, respectively, and the button part extends outside the protective shell for operation and pressing.

[0012] Preferably, in order to achieve a reliable fixed connection using the ball lock principle, a limiting hole is provided on the bottom side wall of the fixed post for the ball to slide, and an enlarged section or a truncated cone is provided at the bottom of the push rod. When the button is in the initial state of being pushed up by the spring, the enlarged section or the truncated cone squeezes the ball so that part of it protrudes out of the outside of the fixed post.

[0013] Preferably, in order to ensure excellent waterproof performance while enabling quick connection, the quick-connect mechanism further includes a sealing ring. The sealing ring is sleeved on the outer wall of the end of the connecting tube and is located between the inner wall of the housing and the outer wall of the connecting tube. Under the locking force of the locking block, the housing moves axially along the connecting tube and compresses the sealing ring, thereby filling the mating gap.

[0014] Preferably, in order to achieve synchronous operation of mechanical connection and electrical connection, the connector device further includes a cable assembly, the cable assembly including a female plug fixedly installed inside the connecting tube, the tail end of the female plug being connected to a wire, and a female plug that is fixedly installed inside the housing and is engaged with the female plug, the female plug moving synchronously with the housing.

[0015] Preferably, in order to cooperate with the ball to achieve positioning and clamping of the main body of the device, the upper surface of the fixing plate is provided with a positioning blind hole that cooperates with the ball, and the inner wall of the positioning blind hole is provided with an annular groove for the ball to be inserted.

[0016] Preferably, the connecting pipe is in the shape of a T-junction, and the three ports of the connecting pipe are respectively provided with the quick-connect mechanism to meet the connection requirements of multiple cable branches.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problems of cumbersome assembly and disassembly, low efficiency, and the sealing effect being greatly affected by human operation force in the prior art by setting a quick-connect mechanism with a locking block and a shell at the end of the connecting pipe, in conjunction with the use of a sealing ring. It achieves quick connection and disconnection of cable interfaces without the need for auxiliary tools, and uses the lever pressure of the locking block to force the shell to press the sealing ring, thereby achieving a stable, reliable and highly consistent waterproof sealing effect.

[0018] 2. This utility model solves the problems in the prior art of fixing the joint device as a whole on the mounting base surface and the time-consuming and laborious operation caused by the need to tighten screws one by one during disassembly and maintenance by setting a press-type fixing mechanism based on the cooperation of spring, top rod and ball in the side wall of the connecting pipe. It achieves the technical effect of quickly locking and releasing between the main body of the device and the fixing plate by pressing the button with one hand, which greatly improves the convenience of on-site installation, debugging and subsequent inspection and maintenance.

[0019] 3. This utility model solves the problems of separation of mechanical connection and circuit conduction steps of cable connectors, difficulty in blind insertion and alignment, and easy damage to pins in the prior art by fixing the sub-plug inside the shell and moving synchronously with the shell. It achieves the goal of automatically guiding and completing the precise docking of the internal circuit while driving the shell to perform mechanical locking, ensuring the stability of electrical contact and effectively preventing the risk of loosening of internal circuits due to external pulling. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a cable branch sealing and waterproof joint device proposed in this utility model; Figure 2This is a schematic diagram of the connecting pipe of a cable branch sealing and waterproof joint device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Legend: 1. Fixing plate; 2. Quick-connect mechanism; 21. Housing; 22. Locking lever; 23. Fixing pin; 24. Sealing ring; 25. Connecting pipe; 3. Fixing mechanism; 31. Protective shell; 32. Button; 33. Spring; 34. Fixing post; 35. Push rod; 36. Ball bearing; 4. Cable assembly; 41. Female plug; 42. Female plug; 43. Wire. Detailed Implementation

[0021] Example: Reference Figures 1 to 3 This utility model provides a sealing and waterproof joint device for cable branches, which aims to solve the structural defects of existing technologies, such as low efficiency of cable joint disassembly and assembly, inability to quickly seal and connect, and difficulty in quick fixation and maintenance on the mounting base.

[0022] like Figure 1 and Figure 2 As shown, a cable branch sealing and waterproof joint device includes a fixing plate 1 and a connecting pipe 25 disposed above the fixing plate 1. The fixing plate 1 serves as the mounting base for the entire device, providing a stable support plane and positioning reference. The connecting pipe 25 serves as the main component of the cable branch, and its interior forms a cavity for accommodating the cable assembly 4 and a cable passage. The connecting pipe 25 is generally in the shape of a T-junction, with its three ports extending out to realize multi-channel cable branch connection.

[0023] Quick-connect mechanisms 2 are provided at the three ports of the connecting tube 25. The quick-connect mechanisms 2 are used to realize the quick mechanical connection and waterproof sealing between the external cable and the connecting tube 25. The quick-connect mechanism 2 mainly includes a housing 21 that is slidably sleeved on the outer side of the end of the connecting tube 25, a locking block 22 that is rotatably connected to the outer wall of the housing 21, and a fixed pin 23 that serves as the rotation axis. The locking block 22 drives the housing 21 to move axially by rotating eccentrically, thereby realizing the quick clamping and separation of the interface.

[0024] A fixing mechanism 3 is also fixedly connected to the outer wall of the connecting tube 25. The fixing mechanism 3 is used to quickly lock or release the entire connecting tube 25 and quick-connect mechanism 2 assembly onto the fixing plate 1. The fixing mechanism 3 mainly includes a protective shell 31 fixed to the outer wall of the connecting tube 25, a button 32 slidably disposed inside the protective shell 31, a push rod 35 connected to the button 32, and a ball bearing 36 located at the bottom. By pressing the button 32, the push rod 35 is driven to move vertically, thereby changing the radial position of the ball bearing 36, so as to realize the ball lock quick fixation between the main body of the device and the fixing plate 1.

[0025] Reference Figure 2 The quick-connect mechanism 2 has a housing 21 sleeved on the outer periphery of the end of the connecting tube 25. The inner diameter of the housing 21 is adapted to the outer diameter of the connecting tube 25, so that the housing 21 can move back and forth along the axial direction of the connecting tube 25 in a sliding connection manner. A locking block 22 is rotatably connected to the outer wall of the housing 21 by a fixing pin 23. The fixing pin 23 serves as the rotation axis and passes through the housing 21 to install the lug and the locking block 22. The locking block 22 can rotate around the axis of the fixing pin 23.

[0026] The outer wall of the connecting tube 25 is provided with an annular groove that cooperates with the locking block 22. When a locking connection is required, the locking block 22 is rotated inward, and the locking end of the locking block 22 is engaged in the annular groove of the connecting tube 25. Using the lever principle or the squeezing action of the cam surface, the locking block 22 presses against the side wall of the annular groove, thereby generating an axial pulling force to drive the outer shell 21 to move towards the connecting tube 25 and press it.

[0027] Meanwhile, the quick-connect mechanism 2 also includes a sealing ring 24, which is sleeved on the outer wall of the end of the connecting tube 25 and located in the annular gap between the inner wall of the outer shell 21 and the outer wall of the connecting tube 25. When the outer shell 21 is driven to move inward by the locking block 22, the inner stepped surface or abutment surface of the outer shell 21 will axially compress the sealing ring 24, forcing the sealing ring 24 to undergo elastic deformation, thereby tightly filling the gap between the outer shell 21 and the connecting tube 25 and achieving excellent waterproof sealing effect.

[0028] For the internal circuit connection, the device is equipped with a cable assembly 4. The cable assembly 4 includes a female plug 42 fixedly installed in the cavity inside the connecting tube 25. A wire 43 is fixedly connected to the tail end of the female plug 42. The wire 43 extends along the inner cavity of the connecting tube 25. A female plug 41 that is inserted into the female plug 42 is fixedly installed at the center of the inner shell 21. The female plug 41 moves synchronously with the shell 21. When the shell 21 moves inward and locks, the shell 21 drives the female plug 41 to insert into the female plug 42, thereby completing the mechanical locking and sealing at the same time and simultaneously completing the circuit conduction connection.

[0029] As a preferred embodiment, in order to achieve quick assembly / disassembly and secure locking between the device body and the fixing plate 1, please refer to the following: Figure 3The device is also equipped with a fixing mechanism 3, which is fixedly connected to the outer wall of the connecting pipe 25. The fixing mechanism 3 includes a protective shell 31 fixedly connected to the outer side of the connecting pipe 25. The protective shell 31 has a vertically arranged fixing column 34 inside. The fixing column 34 is a hollow tubular structure, and its bottom end extends to the bottom opening of the protective shell 31.

[0030] As the core driving component of the fixed mechanism 3, a button 32 is slidably installed inside the protective shell 31. Part of the button 32 extends out of the top of the protective shell 31 for pressing operation. A vertically extending push rod 35 is fixedly connected to the bottom of the button 32. The push rod 35 is slidably inserted into the central channel inside the fixed column 34. The push rod 35 can move up and down with the button 32.

[0031] In order to achieve automatic reset and locking of the fixing mechanism 3, a spring 33 is sleeved on the outer wall of the push rod 35. The spring 33 is located between the upper end face of the fixing column 34 and the lower surface of the button 32. The spring 33 is in a compressed state or a pre-tightened state, and always applies an upward pushing force to the button 32, so that the push rod 35 maintains an upward position trend when it is not subjected to external force.

[0032] In order to connect with the fixed plate 1 using the ball lock principle, the bottom side wall of the fixed post 34 is provided with a sliding limit hole for the ball 36. The ball 36 is movably accommodated in the limit hole and is restricted from completely detaching from the fixed post 34. The bottom of the push rod 35 is provided with a locking head with a specific shape, which includes an expanded diameter section or a truncated cone. When the button 32 is in the initial state of being pushed up by the spring 33, the expanded diameter section or truncated cone at the bottom of the push rod 35 is directly opposite the position of the ball 36. The ball 36 is forced to move radially outward and partially protrude from the outer side wall of the fixed post 34 by the inclined surface extrusion.

[0033] In order to cooperate with the fixing mechanism 3 to achieve positioning and locking, the upper surface of the fixing plate 1 is provided with a positioning blind hole for the bottom of the fixing mechanism 3 to be inserted. The inner wall of the positioning blind hole is provided with an annular groove that cooperates with the ball 36. When the ball 36 protrudes, the ball 36 is inserted into the annular groove, thereby restricting the vertical disengagement of the fixing mechanism 3 and firmly locking the connecting pipe 25 on the fixing plate 1.

[0034] The working principle is as follows: When cable connection and sealing are required, first rotate the locking block 22, which is rotatably connected to the fixing pin 23, outward so that the locking block 22 disengages from the groove of the connecting tube 25. At this time, the outer shell 21 is in the unlocked state. Pull the outer shell 21 outward, and the outer shell 21 will drive the sub-plug 41, which is fixedly connected to it, to move outward, so that the sub-plug 41 is separated from the female plug 42, thus completing the circuit break or preparing for connection.

[0035] During the connection process, the outer shell 21, along with the sub-plug 41, is inserted inward. The outer shell 21 slides along the connecting tube 25, guiding the sub-plug 41 to be accurately inserted into the female plug 42 inside the connecting tube 25, thus achieving circuit conduction. Then, the locking lever 22 is rotated inward, using the lever principle to make the locking lever 22 engage in the annular groove on the outer wall of the connecting tube 25. The locking lever 22 generates strong axial pressure, forcing the outer shell 21 to continue to press inward. During this process, the outer shell 21 strongly compresses the sealing ring 24 located between it and the connecting tube 25. The sealing ring 24 undergoes elastic deformation to fill the gap, thereby completing an efficient waterproof sealing connection.

[0036] When it is necessary to fix the device on the fixing plate 1, press down the button 32 on the top of the protective shell 31. The button 32 overcomes the resistance of the spring 33 and drives the push rod 35 to move downward. The expanded section or truncated cone at the bottom of the push rod 35 moves away, releasing the compression on the ball 36. Under its own weight or external thrust, the ball 36 retracts inward into the limiting hole of the fixing post 34.

[0037] At this point, align the bottom end of the fixing mechanism 3 with and insert it into the positioning blind hole on the fixing plate 1. When it is inserted to the bottom fixed position, release the button 32. Under the restoring force of the spring 33, the button 32 drives the push rod 35 to move upward quickly. The expanded diameter section or cone at the bottom of the push rod 35 re-presses the ball 36, forcing the ball 36 to bulge outward and get stuck in the annular groove on the inner wall of the positioning blind hole of the fixing plate 1. The ball 36 cannot come out under the constraint of the fixing post 34, thus firmly locking the entire device on the fixing plate 1. Conversely, if disassembly is required, simply press the button 32 again, and after the ball 36 is unlocked, lift the device upward.

Claims

1. A sealing and waterproof joint device for cable branch points, comprising: A fixing plate (1) and a connecting pipe (25) disposed above the fixing plate (1), characterized in that a quick-connect mechanism (2) is provided at the end of the connecting pipe (25), the quick-connect mechanism (2) includes a housing (21) slidably sleeved on the end of the connecting pipe (25), the outer wall of the housing (21) is rotatably connected to a locking block (22) by a fixing pin (23), the outer wall of the connecting pipe (25) is provided with an annular groove that cooperates with the locking block (22), the locking block (22) is inserted into the annular groove and causes the housing (21) to press inward; The outer wall of the connecting tube (25) is also fixedly connected to a fixing mechanism (3). The fixing mechanism (3) includes a protective shell (31) fixed to the outside of the connecting tube (25). A button (32) is slidably connected inside the protective shell (31). A top rod (35) is fixedly connected to the bottom of the button (32). The bottom of the top rod (35) abuts against a ball (36) for locking into the inside of the fixing plate (1).

2. The cable branch sealing and waterproof joint device according to claim 1, characterized in that, The fixing mechanism (3) also includes a fixing column (34) located inside the protective shell (31). The fixing column (34) is fixedly connected to the outer wall of the connecting pipe (25). The fixing column (34) is a hollow tubular structure. The top rod (35) slides through the inside of the fixing column (34).

3. The cable branch sealing and waterproof joint device according to claim 2, characterized in that, The outer wall of the top rod (35) is fitted with a spring (33), the two ends of the spring (33) abut against the lower surface of the button (32) and the upper surface of the fixing post (34) respectively, and the button (32) extends out of the protective shell (31).

4. The cable branch sealing and waterproof joint device according to claim 3, characterized in that, The bottom side wall of the fixed post (34) is provided with a limiting hole for the ball (36) to slide. The bottom of the push rod (35) is provided with an enlarged section or a truncated cone. When the button (32) is in the initial state of being pushed up by the spring (33), the enlarged section or truncated cone squeezes the ball (36) so that part of it protrudes out of the outside of the fixed post (34).

5. A sealing and waterproof joint device for cable branching according to claim 1, characterized in that, The quick-connect mechanism (2) also includes a sealing ring (24), which is sleeved on the outer wall of the end of the connecting tube (25) and located between the inner wall of the outer shell (21) and the outer wall of the connecting tube (25). Under the locking force of the locking block (22), the outer shell (21) moves axially along the connecting tube (25) and compresses the sealing ring (24).

6. A sealing and waterproof joint device for cable branching according to claim 1, characterized in that, The connector device further includes a cable assembly (4), which includes a female plug (42) fixedly installed inside the connecting tube (25), with a wire (43) connected to the tail end of the female plug (42), and a female plug (41) that is plugged into and mates with the female plug (42) fixedly installed inside the housing (21).

7. A sealing and waterproof joint device for cable branching according to claim 1, characterized in that, The upper surface of the fixing plate (1) is provided with a positioning blind hole that cooperates with the ball (36), and the inner wall of the positioning blind hole is provided with an annular groove for the ball (36) to be inserted.

8. A sealing and waterproof joint device for cable branching according to claim 1, characterized in that, The connecting pipe (25) is in the shape of a three-way valve, and the three ports of the connecting pipe (25) are respectively provided with the quick-connect mechanism (2).

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