Pin type wiring terminal

Abstract

The utility model relates to a pin type wiring terminal, which comprises a terminal female head and a terminal male head, the terminal female head comprises a first wire pipe, a first wire slot and a first butt joint part, the first wire slot is formed at one end of the first wire pipe, the first butt joint part is formed at the other end of the first wire pipe, and the first wire slot is formed at the other end of the first wire pipe. The terminal male head comprises a second line pipe, a second line groove, a threaded column, a threaded sleeve, a second butt joint part and a plurality of limiting pieces, the second line groove is formed in one end of the second line pipe, the threaded column is fixed to the other end of the second line pipe, and the threaded sleeve is arranged on the threaded column in a sleeving mode and is in threaded connection with the threaded column. According to the contact pin type wiring terminal, the first butt joint part in the terminal female head is matched with the limiting piece in the terminal male head, so that the terminal female head and the terminal male head can be connected more firmly in the connecting and using process of the contact pin type wiring terminal, and loosening and separation of a connecting cable in the wiring and using process can be reduced; and the stability of wiring connection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power fittings, in particular to a pin-type wiring terminal. Background Art

[0002] In electrical engineering, wire terminals are divided into single-hole, double-hole, socket, hook, etc., and are made of silver-plated copper, zinc-plated copper, copper, aluminum, iron, etc. Their main function is to transmit electrical signals or conduct electricity. Terminal blocks are gradually widely used in various fields, playing a connecting role in transmitting electrical signals and conducting electricity, thereby reducing the workload and production cost, bringing many conveniences to production and use, avoiding many troubles, and thus achieving the purpose of simplifying product structure and saving manufacturing costs.

[0003] Pin-type terminal blocks generally have a male and female connector that fit together. The female connector has a recessed portion that can be inserted into the male connector's protruding portion, so that the cables to be connected can be pre-crimped with the male and female connectors in the pin-type terminal block, and then the two are connected to complete the wiring operation.

[0004] However, during use, the existing pin-type terminal blocks have the problem that the male connector is easily loosened and falls off in the female connector due to external forces, which in turn affects the stability of the connection between cables and poses a safety hazard. Utility Model Content

[0005] (1) Technical problems solved

[0006] The utility model provides a pin-type wiring terminal, which solves the problem that a male head is easily loosened and falls off in a female head due to an external force.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a pin-type wiring terminal, comprising a female terminal and a male terminal, the female terminal comprising a first wire tube, a first wire groove and a first docking portion, the first wire groove being formed at one end of the first wire tube, the first docking portion being formed at the other end of the first wire tube, the male terminal comprising a second wire tube, a second wire groove, a threaded column, a threaded sleeve, a second docking portion and a plurality of limiting members, the second wire groove being formed at one end of the second wire tube, the threaded column being fixed at the other end of the second wire tube, the threaded sleeve being sleeved on the threaded column and threadedly connected thereto, the second docking portion being fixed at an end of the threaded column facing away from the second wire tube, the plurality of limiting members being distributed on the outside of the second docking portion and rotatably connected thereto, the threaded sleeve being able to adjust the position state of the plurality of limiting members along the axial direction of the threaded column, and the plurality of limiting members cooperating with the first docking portion to limit the relative position between the second docking portion and the first docking portion.

[0009] Preferably, a frustum portion is provided at one end of the first docking portion away from the first wire tube, and an annular inner groove is formed between the frustum portion and the first docking portion.

[0010] In a further embodiment, the number of the limiting members is set to at least two, and a hook portion protruding inwardly toward the groove is formed at one end of the limiting member close to the first docking portion.

[0011] In a further embodiment, a socket and an insertion pin are formed on the facing sides of the frustum portion and the second docking portion, respectively, and the insertion pin extends into the socket and is engaged with the socket.

[0012] In a further embodiment, the female terminal further comprises a protective tube, which is formed on one end of the first wire tube toward the first docking portion, and a masking groove through which a plurality of limiting members can pass is formed between the first docking portion and the protective tube.

[0013] It is further preferred that the outer side of the second docking portion is evenly fixed with positioning seats in a number equal to the number of limiting members along its radial direction, each of the limiting members passes through the central gap of one of the positioning seats, and the limiting members are rotatably connected to the adjacent positioning seats by means of a pin shaft.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a pin-type terminal block with the following advantages:

[0016] In the present invention, the first docking portion in the female terminal and the limiting member in the male terminal are arranged in coordination, so that the pin-type terminal can complete the connection between the female terminal and the male terminal more tightly during the connection process, and can reduce the loosening and separation of the connecting cable during the connection process, thereby improving the stability of the wiring connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a female terminal cut away and mated with a male terminal according to the embodiment;

[0018] Figure 2 Schematic diagram of the structure of the pin-type terminal block when connected and used according to the embodiment;

[0019] Figure 3 Schematic diagram of the structure of the terminal male according to the embodiment.

[0020] In the figure: 10, female terminal; 11, first wire tube; 12, first wire trough; 13, protective tube; 14, first docking part; 141, frustum; 15, mask groove; 20, male terminal; 21, second wire tube; 22, second wire trough; 23, threaded column; 24, threaded sleeve; 25, second docking part; 26, positioning seat; 27, pin shaft; 28, limiter; 281, claw part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 3 A pin-type terminal block includes a female terminal 10 and a male terminal 20 that are used in conjunction with each other. One end of the female terminal 10 and the male terminal 20 can be crimped to a cable, and the other ends of the female terminal 10 and the male terminal 20 can be connected to each other in conjunction with each other.

[0023] In this embodiment, the female terminal 10 may include a first wire tube 11, a first wire groove 12, a protective tube 13, a first docking portion 14, and a masking groove 15. The first wire groove 12 is formed at one end of the first wire tube 11, so that after the outer sheath of the cable is stripped, its conductive inner core can be inserted into the first wire tube 11 and compressed and fixed in the first wire tube 11 by a crimping arrangement. The first docking portion 14 is formed at the other end of the first wire tube 11 and is used to cooperate with the second docking portion 25 in the male terminal 20 for electrical conduction or signal transmission. The protective tube 13 is formed on the end of the first wire tube 11 facing the first docking portion 14, and a masking groove 15 is formed between the first docking portion 14 and the protective tube 13, which can be passed through by several limit members 28 in the male terminal 20. The first wire tube 11 and the first docking portion 14 can both be made of conductive metal materials; the protective tube 13 can be made of insulating material, and the protective tube 13 can be connected and fixed to the first wire tube 11 by bonding or crimping. After the female terminal 10 and the male terminal 20 are connected, the protective tube 13 can be used to cover the connecting part of the two.

[0024] In this embodiment, the male terminal 20 includes a second conduit 21, a second conduit groove 22, a threaded post 23, a threaded sleeve 24, a second mating portion 25, several positioning seats 26, a pin 27, and a stopper 28. The second conduit groove 22 is formed at one end of the second conduit 21, allowing the conductive core of the cable, after the outer sheath is stripped, to be inserted into the second conduit 21 and secured thereto by crimping. The threaded post 23 is secured to the other end of the second conduit 21, and the threaded sleeve 24 is threadedly mounted on and threadedly connected to the threaded post 23. Rotating the threaded sleeve 24 allows it to move axially along the threaded post 23. The second docking portion 25 is fixed to the end of the threaded post 23 facing away from the second conduit 21. Several stoppers 28 are distributed on the outside of the second docking portion 25 and are rotatably connected thereto. When the threaded sleeve 24 moves toward the second docking portion 25, the threaded sleeve 24 can apply force to the several stoppers 28 toward the outer wall of the second docking portion 25. The axial movement of the threaded sleeve 24 along the threaded post 23 can adjust the position of the several stoppers 28, thereby causing deflection. After the end of the several stoppers 28 near the first docking portion 14 deflects inward, they cooperate with the first docking portion 14 to define the relative position between the second docking portion 25 and the first docking portion 14, thereby preventing separation between the female terminal 10 and the male terminal 20. The second docking portion 25 and the threaded post 23 can both be made of conductive metal materials due to the second conduit 21.

[0025] In this embodiment, a frustum 141 is provided at the end of the first mating portion 14 away from the first conduit 11. An annular inner groove is formed between the frustum 141 and the first mating portion 14. A hook 281 is formed on the end of the stopper 28 proximal to the first mating portion 14, projecting inwardly into the groove. The engagement of the hook 281 with the inner groove prevents axial movement of the female terminal 10 and the male terminal 20, thereby preventing the pin terminal from loosening or separating.

[0026] In this embodiment, a socket and a pin can be formed on the opposite sides of the cone portion 141 in the first docking portion 14 and the second docking portion 25, respectively. After the female terminal 10 and the male terminal 20 are connected, the pin can be inserted into the socket and engaged with it, so that the first docking portion 14 and the second docking portion 25 can be connected more stably.

[0027] In this embodiment, a number of positioning seats 26 equal to the number of stoppers 28 are evenly fixed radially outwardly of the second docking portion 25. Each stopper 28 passes through the central gap of a positioning seat 26, and the stopper 28 is rotatably connected to the adjacent positioning seat 26 via a pin 27. The number of stoppers 28 is set to at least two, so that several stoppers 28 can engage the inner groove after deflection.

[0028] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably considered to be welding. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pin-type terminal, comprising a female terminal (10) and a male terminal (20), characterized in that: The female terminal (10) comprises a first wire tube (11), a first wire groove (12) and a first docking portion (14), wherein the first wire groove (12) is formed at one end of the first wire tube (11), and the first docking portion (14) is formed at the other end of the first wire tube (11); the male terminal (20) comprises a second wire tube (21), a second wire groove (22), a threaded column (23), a threaded sleeve (24), a second docking portion (25) and a plurality of stoppers (28), wherein the second wire groove (22) is formed at one end of the second wire tube (21), and the threaded column (23) is fixed to the second wire tube (21). ), the threaded sleeve (24) is sleeved on the threaded column (23) and threadedly connected thereto, the second docking portion (25) is fixed to one end of the threaded column (23) which is away from the second wire tube (21), a plurality of the limiting members (28) are distributed on the outside of the second docking portion (25) and are rotatably connected thereto, the threaded sleeve (24) can adjust the position states of the plurality of the limiting members (28) by axial movement of the threaded column (23), and the plurality of the limiting members (28) cooperate with the first docking portion (14) to limit the relative position between the second docking portion (25) and the first docking portion (14).

2. A pin-type terminal according to claim 1, characterized in that: A frustum portion (141) is provided at one end of the first docking portion (14) away from the first wire tube (11), and an annular inner groove is formed between the frustum portion (141) and the first docking portion (14).

3. A pin-type terminal according to claim 2, characterized in that: The number of the limiting members (28) is set to be at least two, and one end of the limiting member (28) close to the first docking portion (14) is formed with a hook portion (281) protruding inwardly toward the groove.

4. A pin-type terminal according to claim 2 or 3, characterized in that: An insertion hole and an insertion pin are respectively formed on the facing sides of the frustum portion (141) and the second docking portion (25), and the insertion pin extends into the insertion hole and is clamped therewith.

5. A pin-type terminal according to claim 1 or 2, characterized in that: The female terminal (10) further comprises a protective tube (13), wherein the protective tube (13) is formed on one end of the first wire tube (11) facing the first docking portion (14), and a mask groove (15) through which a plurality of limit members (28) can pass is formed between the first docking portion (14) and the protective tube (13).

6. A pin-type terminal according to claim 1 or 3, characterized in that: The outer side of the second docking portion (25) is evenly fixed with positioning seats (26) in a number equal to the number of the limiting members (28) along its radial direction, each of the limiting members (28) passes through a central gap of the positioning seat (26), and the limiting members (28) are rotatably connected to adjacent positioning seats (26) by means of a pin shaft (27).

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