Lead connecting structure for three-core wire

Abstract

The utility model relates to the technical field of lead connection, in particular to a lead connection structure for a three-core wire, which comprises a shell, and a connection mechanism is arranged in the shell and used for connecting leads. A limiting mechanism is arranged at the top of the shell and is used for fixing the lead; by arranging the connecting mechanism, when the leads are connected, the three leads of the three-core wire are separated and inserted into the wire inserting grooves in the corresponding positions respectively, the rotating rod rotates to drive the driving gear to rotate together so as to drive the meshed rack to move, and when the rack moves, the meshed driven gear drives the guide column to rotate, so that the three-core wire is connected. At the moment, the lead inserted into the wire inserting groove can be bent by the rotating wire inserting groove, is continuously wound on the outer wall of the guide column in the subsequent rotating process and covers the initially-inserted lead head, so that connection is convenient, certain firmness is achieved in connection, multiple leads can be connected at the same time in the mode, and the connection efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead connection, in particular to a lead connection structure for a three-core wire. Background Technique

[0002] A three-core wire is a common type of electric wire, which consists of three independent wires and is usually wrapped in an insulating outer skin. Each of these three wires has different functions and uses. Common lead connection structures include:

[0003] Welding connection: By welding the lead to a circuit board or other electronic components to form a firm electrical connection.

[0004] Plug-in connection: Through the cooperation of a plug and a socket, the quick connection and disconnection of the lead are realized.

[0005] Screw connection: Using screws to fix the lead on electronic components or a circuit board to provide a reliable mechanical connection and electrical contact. The specific form and application scenario of the lead connection structure will vary according to different electronic devices and circuit requirements. When designing and selecting a lead connection structure, factors such as electrical performance, mechanical strength, insulation performance, and reliability need to be comprehensively considered to ensure the quality and stability of the connection.

[0006] However, in practice, connections such as welding connections and screw connections usually require external tool assistance for connection. Generally, a screwdriver and a soldering gun are needed, and in the case of step-by-step strip connection and installation, it is rather troublesome and the connection efficiency is not high. Although the plug-in connection is relatively convenient for connection, in actual use, it is necessary to set up plugs and sockets in advance at the joint for cooperation. When connecting some leads that need to be connected temporarily in practice, the adaptability is poor. In view of this, we propose a lead connection structure for a three-core wire. Content of the Utility Model

[0007] The purpose of the utility model is to provide a lead connection structure for a three-core wire. This lead connection structure for a three-core wire solves the problem that the step-by-step strip connection and installation in the conventional case is rather troublesome and the connection efficiency is not high.

[0008] To achieve the above purpose, the utility model provides the following technical scheme:

[0009] A lead connection structure for a three-core wire, including a housing, and a connection mechanism is arranged inside the housing for connecting the lead;

[0010] A limiting mechanism is arranged at the top of the housing for fixing the lead;

[0011] Among them, the connecting mechanism includes a rotating rod, the rotating rod is rotatably connected to the bottom of the inner wall of the housing, a driving gear is sleeved on the bottom of the rotating rod, racks are meshed and connected to both sides of the driving gear, a driven gear is meshed and connected to the side of the rack away from the driving gear, guide columns are connected to the inner walls of the driven gears, and the guide columns are rotatably connected to the inner wall of the housing. Insertion slots are provided in the inner walls of the guide columns.

[0012] Preferably, the number of the driven gears is six, which are symmetrically arranged front and back. A guide piece is buried at the bottom of the housing for electrically connecting two corresponding guide columns.

[0013] Preferably, partitions are connected to the positions of the housing between the guide columns for dividing independent channels on the housing.

[0014] Preferably, a slideway is provided at the position below the rack at the bottom of the inner wall of the housing, and the bottom of the rack is slidably connected to the slideway.

[0015] Preferably, the limiting mechanism includes a connecting column, the connecting column is connected to the top of the rotating rod and penetrates through the top of the housing.

[0016] Preferably, a knob is connected to the top of the connecting column, and buckle rings are connected to both sides of the knob.

[0017] Preferably, a threaded sleeve is connected to the outer wall of the connecting column by a thread, and a pressing ring is connected to the bottom of the threaded sleeve.

[0018] By means of the above technical solutions, the present invention provides a lead connection structure for a three-core wire. It has at least the following beneficial effects:

[0019] First, when the present invention is used to connect leads by setting a connecting mechanism, when connecting the three leads of a three-core wire, the three leads are separated, respectively inserted into the insertion slots at corresponding positions, the rotating rod rotates to drive the driving gear to rotate together, thereby driving the meshed rack to move. When the rack moves, it will drive the guide column to rotate through the meshed driven gear. At this time, the lead inserted into the insertion slot will be bent by the rotating insertion slot and continuously wound around the outer wall of the guide column during subsequent rotation, and the initial inserted lead head will be covered, so as to facilitate connection, and the connection has a certain firmness. In this way, multiple leads can be connected at the same time, greatly improving the connection efficiency.

[0020] Second, after the leads are fixed, the threaded sleeve is rotated. Through the friction generated between the threaded sleeve and the thread, the leads are tightened until the pressing ring below the threaded sleeve abuts against the top of the housing and then stops. The rotating rod is positioned by generating friction to prevent the rotating rod from loosening and causing the overall connection to become loose, thereby ensuring the reliability of the connection. Description of the Drawings

[0021] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 It is a structural display diagram of the connection mechanism in the present utility model;

[0024] Figure 3 It is a bottom sectional view of the housing in the present utility model;

[0025] Figure 4 It is a structural display diagram of the limiting mechanism in the present utility model.

[0026] In the figure: 1. Housing; 2. Connection mechanism; 20. Guide piece; 21. Guide post; 22. Insertion wire groove; 23. Driven gear; 24. Partition; 25. Rotating rod; 26. Driving gear; 27. Rack; 28. Slideway; 3. Limiting mechanism; 31. Connection column; 32. Knob; 33. Snap ring; 34. Thread; 35. Threaded sleeve; 36. Pressure ring. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1

[0029] A lead connection structure for a three-core wire, as Figure 1 , Figure 2 shown, includes a housing 1. A connection mechanism 2 is arranged inside the housing 1 for connecting leads. A limiting mechanism 3 is arranged at the top of the housing 1 for fixing leads. Among them, the connection mechanism 2 includes a rotating rod 25. The rotating rod 25 is rotatably connected to the bottom of the inner wall of the housing 1. A driving gear 26 is sleeved at the bottom of the rotating rod 25. Rack 27 is meshed and connected to both sides of the driving gear 26. A driven gear 23 is meshed and connected to the side of the rack 27 away from the driving gear 26. Guide posts 21 are connected to the inner walls of the driven gears 23, and the guide posts 21 are rotatably connected to the inner wall of the housing 1. Insertion wire grooves 22 are provided in the inner walls of the guide posts 21.

[0030] In this embodiment, when connecting the lead wires by setting up the connecting mechanism 2, the three lead wires of the three-core wire are separated and respectively inserted into the slot grooves 22 at corresponding positions. When the rotating rod 25 rotates, the driving gear 26 rotates together, thereby driving the engaged rack 27 to move. When the rack 27 moves, the guide post 21 is driven to rotate by the engaged driven gear 23. At this time, the lead wires inserted into the slot grooves 22 will be bent by the rotating slot grooves 22 and continuously wound around the outer wall of the guide post 21 during subsequent rotation, and the initially inserted lead wire heads are covered, which is convenient for connection and the connection has a certain firmness. By this method, multiple lead wires can be connected simultaneously, greatly improving the connection efficiency.

[0031] Embodiment 2

[0032] As Figure 2 、 Figure 3 shown, on the basis of Embodiment 1, preferably, the number of driven gears 23 is six, which are symmetrically arranged front and back. A guide piece 20 is buried at the bottom of the housing 1 for electrically connecting two guide posts 21 at corresponding positions. Partition plates 24 are connected at positions of the housing 1 between the guide posts 21 for dividing independent channels on the housing 1.

[0033] In this embodiment, by setting the partition plates 24, it is convenient to divide and form independent channels, avoiding the mutual contact between the lead wires and affecting the electrical connection.

[0034] Embodiment 3

[0035] As Figure 2 shown, on the basis of Embodiment 1, preferably, a slideway 28 is provided at the position of the bottom of the inner wall of the housing 1 below the rack 27, and the slideway 28 is slidably connected to the bottom of the rack 27.

[0036] In this embodiment, by setting the slideway 28, the rack 27 can be limited to ensure its stability during movement.

[0037] Embodiment 4

[0038] As Figure 1 、 Figure 2 、 Figure 4 shown, on the basis of Embodiment 1, preferably, the limiting mechanism 3 includes a connecting column 31, the connecting column 31 is connected to the top of the rotating rod 25 and penetrates through the top of the housing 1. A knob 32 is connected to the top of the connecting column 31, buckle rings 33 are connected to both sides of the knob 32, a threaded sleeve 35 is connected to the outer wall of the connecting column 31 through a thread 34, and a pressing ring 36 is connected to the bottom of the threaded sleeve 35.

[0039] In this embodiment, by inserting a finger into the buckle 33, it is convenient to apply force to drive the rotation of the rotating rod 25 connected to the connecting column 31 below the knob 32. And after the lead wire is fixed, the threaded sleeve 35 is rotated. Through the friction generated between the threaded sleeve 35 and the thread 34, the lead wire is tightened until the pressure ring 36 below the threaded sleeve 35 abuts against the top of the housing 1 and then stops. By generating friction to position the rotating rod 25, it is avoided that the loosening of the rotating rod 25 causes the overall connection to become loose, thereby ensuring the reliability of the connection.

[0040] When the lead wire connecting structure for a three-core wire of the present utility model is in use and the lead wire is being connected, the three lead wires of the three-core wire are separated and respectively inserted into the slot grooves 22 at corresponding positions. By inserting a finger into the buckle 33, it is convenient to apply force to drive the rotation of the rotating rod 25 connected to the connecting column 31 below the knob 32. When the rotating rod 25 rotates, the driving gear 26 rotates together, thereby driving the engaged rack 27 to move. When the rack 27 moves, it will drive the guide post 21 to rotate through the engaged driven gear 23. At this time, the lead wire inserted into the slot groove 22 will be bent by the rotating slot groove 22 and continuously wound around the outer wall of the guide post 21 during subsequent rotation, and the initially inserted lead wire head will be covered to facilitate connection. And after the lead wire is fixed, the threaded sleeve 35 is rotated. Through the friction generated between the threaded sleeve 35 and the thread 34, the lead wire is tightened until the pressure ring 36 below the threaded sleeve 35 abuts against the top of the housing 1 and then stops. By generating friction to position the rotating rod 25, it is avoided that the loosening of the rotating rod 25 causes the overall connection to become loose, thereby ensuring the reliability of the connection.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A three-core wire lead connection structure, comprising a housing (1), characterized in that: A connecting mechanism (2) is provided inside the housing (1) for connecting a lead wire; A limiting mechanism (3) is provided on the top of the housing (1) for fixing the lead wire; The connecting mechanism (2) comprises a rotating rod (25), the rotating rod (25) is rotatably connected to the bottom of the inner wall of the housing (1), the bottom of the rotating rod (25) is sleeved with a driving gear (26), both sides of the driving gear (26) are meshingly connected with racks (27), the side of the rack (27) away from the driving gear (26) is meshingly connected with a driven gear (23), the inner wall of the driven gear (23) is connected with a guide column (21), and the guide column (21) is rotatably connected to the inner wall of the housing (1), and the inner wall of the guide column (21) is provided with a wire insertion groove (22).

2. A three-core wire lead connection structure according to claim 1, characterized in that: The number of the driven gears (23) is six and they are arranged symmetrically in the front and rear directions. A guide piece (20) is embedded in the bottom of the housing (1) for electrically connecting two guide pillars (21) at corresponding positions.

3. A three-core wire lead connection structure according to claim 1, characterized in that: The housing (1) is connected to partition plates (24) at positions between the guide pillars (21) for dividing the housing (1) into independent channels.

4. A three-core wire lead connection structure according to claim 1, characterized in that: A slideway (28) is provided at the bottom of the inner wall of the housing (1) below the rack (27), and the slideway (28) is slidably connected to the bottom of the rack (27).

5. A three-core wire lead connection structure according to claim 1, characterized in that: The limiting mechanism (3) comprises a connecting column (31), wherein the connecting column (31) is connected to the top of the rotating rod (25) and passes through the top of the housing (1).

6. A three-core wire lead connection structure according to claim 5, characterized in that: The top of the connecting column (31) is connected to a knob (32), and buckles (33) are connected to both sides of the knob (32).

7. A three-core wire lead connection structure according to claim 6, characterized in that: The outer wall of the connecting column (31) is connected to a threaded sleeve (35) via a thread (34), and the bottom of the threaded sleeve (35) is connected to a pressure ring (36).

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