Multifunctional signal one-to-three waterproof connecting device

Abstract

The utility model discloses a multifunctional signal one-to-three waterproof connecting device. The multifunctional signal one-to-three waterproof connecting device comprises a main plug; the switching device comprises a PCB (Printed Circuit Board), an inner mold and an outer mold, and the tail end of the main line is welded on the PCB in a spot welding manner; at least two locking screws; and the at least three tapping points are connected with the switching device through at least three tapping lines, and the front ends of the tapping lines are welded on the PCB. According to the utility model, the switching device is additionally arranged, the PCB capable of switching a single signal into a plurality of signals is arranged in the switching device, after the main line and the branch line are respectively welded with the PCB, a layer of inner mold capable of fixing welding spots is formed outside the PCB, and then a layer of outer mold with a waterproof function is additionally arranged on the periphery of the inner mold; the inner mold and the outer mold both adopt the SR forming technology, the waterproof performance is excellent, and signals and weak currents in the controller are effectively output to a plurality of machines at the same time.

Description

Technical Field:

[0001] The utility model relates to the technical field of communication transmission, in particular to a multifunctional signal one-to-three waterproof connection device. Background Art:

[0002] With the progress of society and the increasing development of technology, all of this is based on the application of electricity. Electricity has brought light and convenience to people's lives. As the carrier of electricity, cables are very common. Wherever there is electricity, cables must exist, and their important position in work and life is self-evident.

[0003] In industry, cables are more widely used. For different working scenarios and purposes, different specifications of cables will be used. Since there are often complex and harsh working conditions in industry, except for some indoor environments, in most other working conditions, cables need to have the functions of waterproofing and tensile resistance. In addition, in industrial control, it is often necessary to output signals such as signals and weak currents in the controller to multiple machines at the same time, which requires the cable to have the function of converting a single signal into multiple signals.

[0004] At present, there are many waterproof wire materials on the market. For example, the Chinese utility model patent application with the patent publication number CN213905683U discloses a waterproof wire material, which includes: a wire body and a plug; the plug includes a body, a boss portion and a socket; the socket is provided with an opening; first and second accommodation grooves are respectively arranged on both sides of the boss portion; the waterproof wire material further includes a first waterproof member and a second waterproof member; one end of the first waterproof member is movably arranged in the first accommodation groove; the other end of the first waterproof member protrudes out of the first accommodation groove; one end of the second waterproof member is movably arranged in the second accommodation groove; the other end of the second waterproof member protrudes out of the second accommodation groove. By setting the first waterproof member, the second waterproof member, the first accommodation groove and the second accommodation groove, the first waterproof member and the second waterproof member shield the opening in the idle state of the wire material, preventing the opening from being directly exposed to the air, thereby playing a waterproof role.

[0005] However, this existing waterproof wire material still has the following deficiencies:

[0006] In this technical solution, by setting the first and second waterproof members, the opening can be shielded when the wire material is in the idle state. Such a method has great limitations because after each use, it is necessary to manually reset the first and second waterproof members to the opening, which is not convenient to operate and the waterproof performance needs to be improved; in addition, this technical solution does not have the function of converting a single signal into multiple signals, and cannot output signals such as signals and weak currents in the controller to multiple machines at the same time, and its functionality is very limited.

[0007] In view of this, the inventors propose the following technical solutions. Utility model content:

[0008] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a multifunctional signal one-to-three waterproof connection device.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions: a multifunctional signal one-to-three waterproof connection device, comprising: a main plug, which is used to connect to an external controller, and a main line is connected to the main plug; a transfer device, which is penetrated by at least two locking holes for cooperating with an external housing for positioning, and the transfer device comprises: a PCB board for signal transfer of the main plug, an inner mold integrally formed on the outside of the PCB board and used for fixing the solder joints, and an outer mold integrally formed on the outside of the inner mold and used to prevent external liquids from entering, and the tail end of the main line is welded to the PCB board; at least two locking screws, which spirally pass through the locking holes and are fixed to the external housing; at least three tap connectors, which are connected to the transfer device through at least three tap wires, and the front end of the tap wires is welded to the PCB board.

[0010] Furthermore, in the above technical solution, the locking hole passes through the PCB board and forms a grounding hole, and the locking screw spirally passes through the grounding hole and is connected to the external housing, so that the PCB board is grounded.

[0011] Furthermore, in the above technical solution, the PCB board has a plurality of first solder points for welding to the main line arranged and distributed on the upper surface close to the main line, and a plurality of second solder points for welding to the main line arranged and distributed on the lower surface close to the main line; in addition, the PCB board has a plurality of third solder points for welding to the branch line arranged and distributed on the upper surface close to the branch line, and a plurality of fourth solder points for welding to the main line arranged and distributed on the lower surface close to the main line.

[0012] Furthermore, in the above technical solution, the main plug includes: a plug body, a plug-in portion integrally formed with the plug body and protruding forward, and a first connecting screw and a second connecting screw respectively arranged on both sides of the plug body and used to lock with the outside, wherein the plug body is formed with a first friction portion for increasing friction to facilitate plugging and unplugging.

[0013] Furthermore, in the above technical solution, the tap includes: a tap body, a docking portion integrally formed with the tap body and protruding forward, and third and fourth binding screws respectively provided on both sides of the tap body for locking with the outside, wherein the plug body is formed with a second friction portion for increasing friction to facilitate insertion and removal.

[0014] Furthermore, in the above technical solution, one end of the outer mold is formed with a first edge for insulating and protecting the main line, and the other end of the outer mold is formed with at least three second edges for insulating and protecting the branch line.

[0015] Furthermore, in the above technical solution, the main line is covered with a first heat shrink tube for insulation protection and identification; the branch line is also covered with a second heat shrink tube for insulation protection and identification.

[0016] Furthermore, in the above technical solution, the locking hole passes through the outer mold and the inner mold and is respectively formed with an outer mold hole and an inner film hole. The outer mold hole and the inner film hole are connected to the grounding hole. When the locking screw passes through the locking hole, the PCB board is positioned in the inner mold.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: In the present invention, a switching device is added, and a PCB board capable of switching a single signal into multiple signals is provided in the switching device. After the main line and the branch line are respectively welded to the PCB board, an inner mold capable of fixing the solder joints is formed on the outside of the PCB board, and then an outer mold with a waterproof function is added outside the inner mold. Both the inner mold and the outer mold adopt the SR molding process, and have excellent waterproof performance. In addition, it effectively realizes the simultaneous output of signals in the external controller and weak current signals to multiple machines. Description of the drawings:

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the assembly of the utility model after removing the plug;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the utility model after removing the plug;

[0021] Figure 4 This is a schematic diagram of the structure of the PCB board in the utility model;

[0022] Figure 5 It is a circuit diagram of the present utility model. Specific implementation method:

[0023] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0024] See Figures 1 to 5The figure shows a multifunctional one-to-three waterproof signal connection device, which includes: a main plug 1 for connecting to an external controller, and a main line 10 connected to the main plug 1; an adapter device 2, which is provided with at least two locking holes 201 for cooperating with an external housing for positioning. The adapter device 2 also includes: a PCB board 21 for signal transfer from the main plug 1, an inner mold 22 integrally formed on the outside of the PCB board 21 and used to fix the solder joints, and an outer mold 23 integrally formed on the outside of the inner mold 22 and used to prevent external liquids from entering. The tail end of the main line 10 is welded to the PCB board 21; at least two locking screws 4, which are screwed through the locking holes 201 and fixed to the external housing; and at least three tap connectors 3, which are connected to the adapter device 2 via at least three tap wires 30, the front ends of which are welded to the PCB board 21.

[0025] In the present invention, a switching device 2 is added. The switching device 2 is provided with a PCB board 21 capable of switching a single signal into multiple signals. After the main line 10 and the branch line 30 are respectively welded to the PCB board 21, an inner mold 22 capable of fixing the solder joints is formed on the outside of the PCB board 21. Then, an outer mold 23 with a waterproof function is added to the outer periphery of the inner mold 22. Both the inner mold 22 and the outer mold 23 adopt the SR molding process, and have excellent waterproof performance. In addition, it effectively realizes the simultaneous output of signals in the external controller and weak current signals to multiple machines.

[0026] The locking hole 201 extends through the PCB 21 and defines a grounding hole 202. The locking screw 4 is threaded through the grounding hole 202 and electrically connected to the external housing, thereby grounding the PCB 21. A solder pad 203 serving as a grounding terminal is soldered to the PCB 21 at the grounding hole 202. When the conductive locking screw 4 passes through the grounding hole 202, electrical contact is established between the solder pad 203 and the PCB 21, thereby achieving grounding. Furthermore, the locking screw 4 secures the adapter 2 to the external housing, ensuring its stability and preventing accidental disconnection even when the operator tugs on the tapping cable 30 during use.

[0027] On the upper surface of the PCB board 21 near one side of the main line 10, a plurality of first welding points 211 for welding with the main line 10 are arranged and distributed. On the lower surface of the PCB board 21 near one side of the main line 10, a plurality of second welding points 212 for welding with the main line 10 are arranged and distributed. Additionally, on the upper surface of the PCB board 21 near one side of the branch wire 30, a plurality of third welding points 213 for welding with the branch wire 30 are also arranged and distributed. On the lower surface of the PCB board 21 near one side of the main line 10, a plurality of fourth welding points 214 for welding with the main line 10 are arranged and distributed. Here, in the conventional structure during welding, usually the wire cores are welded to one side of the PCB board 21, which will increase the overall thickness, and due to the overly dense welding, the tensile strength is not good. Compared with the conventional structure, in this embodiment, when the main line 10 is welded to the PCB board 21, part of the wire cores are welded to the first welding points 211 on the upper surface, and the other part of the wire cores are welded to the second welding points 212 on the lower surface, which can effectively avoid all the wire cores being welded to one side of the PCB board 21, thereby reducing the overall thickness and improving the tensile performance.

[0028] The main plug 1 includes: a plug body 110, a plug-in portion 120 integrally formed with the plug body 110 and protruding forward, and a first wiring screw 130 and a second wiring screw 140 respectively arranged on both sides of the plug body 110 and used for external locking. Among them, a first friction portion 150 for increasing friction to facilitate plugging and unplugging is formed on the plug body 110. Here, the first wiring screw 130 and the second wiring screw 140 can be screwed and fixed with the interfaces of the external main controller, making the connection of the main plug 1 more stable. The first friction portion 150 is used for the human hand to hold, to avoid slipping during plugging and unplugging, and facilitate plugging and unplugging.

[0029] The tap 3 includes: a tap body 310, a docking portion 320 integrally formed with the tap body 310 and protruding forward, and a third wiring screw 330 and a fourth wiring screw 340 respectively arranged on both sides of the tap body 310 and used for external locking. Among them, a second friction portion 350 for increasing friction to facilitate plugging and unplugging is formed on the plug body 110. Here, the structure is the same as that of the above main plug 1, and will not be elaborated one by one here.

[0030] One end of the outer mold 23 is formed with a first edge wrapping 231 for insulating protection of the main wire 10, and at least three second edge wrappings 232 for insulating protection of the shunt wire 30 are formed at the other end of the outer mold 23. Here, the outer mold 23 adopts an SR molding process, and the first edge wrapping 231 and the second edge wrapping 232 are respectively formed at the connection parts with the main wire 10 and the shunt wire 30. The first edge wrapping 231 and the second edge wrapping 232 can protect the connection parts from being immersed by external liquid, and also strengthen the connection stability between the first edge wrapping 231 and the second edge wrapping 232 and the PCB board 21, so that the tensile resistance of the main wire 10 and the shunt wire 30 is improved.

[0031] A first heat shrinkable tube 101 for insulating protection and identification is sleeved on the main wire 10; a second heat shrinkable tube 102 for insulating protection and identification is also sleeved on the shunt wire 30. Here, the first heat shrinkable tube 101 and the second heat shrinkable tube 102 have an identification function. During use, operators can quickly distinguish the main plug 1 and the splice connector 3 and quickly pick them up.

[0032] The locking hole 201 penetrates through the outer mold 23 and the inner mold 22 and respectively forms an outer mold hole 233 and an inner mold hole 222. The outer mold hole 233 and the inner mold hole 222 are communicated with the grounding hole 202. When the locking screw 4 passes through the locking hole 201, the PCB board 21 is positioned in the inner mold 22. Here, the locking screw 4 passing through the locking hole 201 further positions the PCB board 21, so that the PCB board 21 will not shift in the inner mold 22, strengthening the stability.

[0033] Combined Figure 5 As shown, in this embodiment, the pins introduced from the main plug 1 are: GA-1 to GA-23. Signals and weak currents in the external controller are introduced into the PCB board 21 through these 23 pins, and are scheduled by the PCB board 21, and the introduced signals and weak currents are converted into three copies, and are respectively output through the pins GO1-1 to GO1-15, GO2-1 to GO2-15, and GO3-1 to GO3-15, so as to realize the simultaneous output of signals such as signals and weak currents in the external controller to multiple machines.

[0034] In summary, in the present utility model, a transfer device 2 is added. A PCB board 21 capable of transferring a single signal into multiple signals is provided in the transfer device 2. After the main wire 10 and the shunt wire 30 are respectively welded to the PCB board 21, an inner mold 22 capable of fixing the solder joints is formed outside the PCB board 21, and then a waterproof outer mold 23 is added outside the inner mold 22. Both the inner mold 22 and the outer mold 23 adopt an SR molding process, and the waterproof performance is excellent. Moreover, the signals such as signals and weak currents in the external controller are effectively output to multiple machines simultaneously.

[0035] Certainly, the above are only specific embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any equivalent changes or modifications made according to the structure, features and principles described in the scope of the patent application of the present utility model shall be included within the scope of the patent application of the present utility model.

Claims

1. A multifunctional signal one-to-three waterproof connection device, characterized in that Comprising: A main plug (1) for connecting to an external controller, and a main wire (10) is connected to the main plug (1); An adapter device (2) having at least two locking holes (201) formed therethrough for cooperating and positioning with an external housing, and the adapter device (2) includes: a PCB board (21) for signal transfer of the main plug (1), an inner mold (22) integrally formed outside the PCB board (21) for fixing solder joints, and an outer mold (23) integrally formed outside the inner mold (22) for preventing external liquid from entering. The tail end of the main wire (10) is welded to the PCB board (21); At least two locking screws (4) which are screwed through the locking holes (201) and fixed to the external housing; At least three tap connectors (3) which are connected to the adapter device (2) through at least three branch wires (30), and the front end of the branch wire (30) is welded to the PCB board (21).

2. The multifunctional signal one-to-three waterproof connection device according to claim 1, wherein: The locking holes (201) penetrate through the PCB board (21) and form grounding holes (202), and the locking screws (4) are screwed through the grounding holes (202) and conduct with the external housing, so that the PCB board (21) forms a grounding conduction.

3. A multifunctional signal one-to-three waterproof connection device according to claim 1, characterized in that: On the upper surface of the PCB board (21) on the side close to the main wire (10), a plurality of first welding points (211) for welding with the main wire (10) are arranged and distributed. On the lower surface of the PCB board (21) on the side close to the main wire (10), a plurality of second welding points (212) for welding with the main wire (10) are arranged and distributed; in addition, on the upper surface of the PCB board (21) on the side close to the branch wire (3), a plurality of third welding points (213) for welding with the branch wire (30) are arranged and distributed. On the lower surface of the PCB board (21) on the side close to the main wire (10), a plurality of fourth welding points (214) for welding with the main wire (10) are arranged and distributed.

4. A multifunctional signal one-to-three waterproof connection device according to claim 1, characterized in that: The main plug (1) includes: a plug body (110), a plug-in portion (120) integrally formed with the plug body (110) and protruding forward, and a first wiring screw (130) and a second wiring screw (140) respectively arranged on both sides of the plug body (110) for external locking. Among them, a first friction portion (150) for increasing friction to facilitate plugging and unplugging is formed on the plug body (110).

5. A multifunctional signal one-to-three waterproof connection device according to claim 4, characterized in that: The tap connector (3) includes: a tap connector body (310), a docking portion (320) integrally formed with the tap connector body (310) and protruding forward, and a third wiring screw (330) and a fourth wiring screw (340) respectively arranged on both sides of the tap connector body (310) for external locking. Among them, a second friction portion (350) for increasing friction to facilitate plugging and unplugging is formed on the plug body (110).

6. A multifunctional signal one-to-three waterproof connection device according to any one of claims 1-5, characterized in that: One end of the outer mold (23) is formed with a first edge (231) for insulating protection of the main wire (10), and the other end of the outer mold (23) is formed with at least three second edges (232) for insulating protection of the branch wire (30).

7. A multifunctional signal one-to-three waterproof connection device according to any one of claims 1-5, characterized in that: A first heat shrinkable tube (101) for insulation protection and identification is sleeved on the main line (10); a second heat shrinkable tube (102) for insulation protection and identification is also sleeved on the branch wire (30).

8. A multifunctional signal one-to-three waterproof connection device according to claim 2, characterized in that: The locking hole (201) penetrates through the outer mold (23) and the inner mold (22) and respectively forms an outer mold hole (233) and an inner mold hole (222). The outer mold hole (233) and the inner mold hole (222) are communicated with the grounding hole (202). When the locking screw (4) passes through the locking hole (201), the PCB board (21) is positioned in the inner mold (22).

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