Split type pin terminal

Abstract

The utility model belongs to the technical field of pin terminals, and provides a split pin terminal, which comprises a terminal seat, a middle body and a plug pin, the top end of the terminal seat is connected with the plug pin through the middle body, the upper ends of the left and right sides of the terminal seat are connected with clamping plates through fastening knobs, and the left and right ends of the bottom of the middle body are fixedly provided with positioning rods. An inserting groove is formed in the top end of the middle body, a plurality of protruding rings are fixedly installed at the upper end of the inner wall of the inserting groove, a threaded butt joint end is arranged at the bottom end of the inserting needle, and when the inserting needle is in butt joint with the inserting groove in the middle body, the threaded butt joint end located at the lower end of the inserting needle can be assembled with the threads at the lower end of the inner wall of the inserting groove through the threads. In the inserting process, the inserting needle can gradually extrude the space of the convex rings, so that the convex rings are tightly attached to the periphery of the inserting needle, the convex rings are all located at the upper end of the threaded connection position of the inserting needle, multiple protection can be achieved, the sealing performance of the inserting part can be effectively improved, and the service life of the inserting part is prolonged. Therefore, the plugging needle is protected from being influenced by environmental factors.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pin terminal technical field, provide a split pin terminal. BACKGROUND

[0002] Split pin terminal, also known as split terminal or split connector, is a connector assembly commonly used in electronic and electrical connection, which is composed of two parts: one part is pin, and the other part is terminal seat, the two parts are in contact with each other through plug-in operation when connected, realizing the transmission of electrical signal or current, and the split pin terminal design allows the two parts of the connector to be separated, that is, the pin and the terminal seat are manufactured separately, but they can be reliably connected through plug-in.

[0003] After a large number of searches, a kind of pin terminal is found in patent publication No. CN206992351U, including wire terminal, pin head;Wire terminal rear part is provided with wire slot;First wire clamp and second wire clamp are arranged on the both sides of wire slot;First wire clamp and second wire clamp are spaced apart along the axial direction of wire slot;Wire terminal front part is provided with wire core chuck;Wire core chuck includes connecting ring located at tail part and clamping jaw located at front part;Pin head tail part is connector;Pin head front part is used for connecting plug-in pin, the utility model structure is reasonable, adopts first wire clamp and second wire clamp, double wire clamping buckle, connection is firm, can prevent cable from falling off well, simultaneously adopts wire core chuck, prevents wire core from loosening and falling off between terminal, and connection is stable, service life is long, effect is good;Although the design pays attention to the firmness of connection and prevents cable from falling off, but the split pin terminal lacks sufficient sealing protection after connection, which may cause the following potential hazards:

[0004] The connection is not fully sealed, and pollutants such as moisture, humidity, dust and oil stains will enter the connection part, causing poor contact or corrosion, which not only affects the contact quality of the terminal and the wire, but also easily enters the contact point between the terminal and the cable, causing the contact resistance to increase, thereby affecting the normal flow of current. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems of overcoming the defects of prior art and solving the problem of insufficient sealing of the existing pin terminal after butt joint.

[0006] The utility model solves the technical problems by adopting the following technical scheme: a split pin terminal, including terminal seat, intermediate body and plug-in needle, the terminal seat top end is connected with plug-in needle through intermediate body, the left and right sides of terminal seat upper end are connected with clamping plate through fastening knob;

[0007] The intermediate body is provided with positioning rods at both ends of the bottom, and a plug-in slot is formed at the top end of the intermediate body, wherein a plurality of convex rings are fixed to the inner wall of the plug-in slot at the upper end;

[0008] The bottom end of the plug-in needle is provided with a threaded butt joint end.

[0009] In the preferable technical scheme of the utility model, the fastening knobs are two and are threadedly connected to the upper sides of the terminal seat, and the clamping plates are two and are respectively rotationally connected to one end of the two fastening knobs.

[0010] In the preferable technical scheme of the utility model, the clamping plate is arranged in a curved shape, the curvature of the clamping plate is matched with the intermediate body, and the inner wall of the clamping plate is rough.

[0011] In the preferable technical scheme of the utility model, the inner wall of the plug-in slot is provided with an internal thread matched with the threaded butt joint end at the lower end.

[0012] In the preferable technical scheme of the utility model, the terminal seat is internally provided with positioning slots matched with the two positioning rods at both ends.

[0013] In the preferable technical scheme of the utility model, the terminal seat and the intermediate body are internally and centrally provided with a plug-in port, and the plug-in port and the plug-in slot are on the same vertical line.

[0014] In the preferable technical scheme of the utility model, the plurality of convex rings are equidistantly arranged from top to bottom, the inner wall diameter of the plurality of convex rings gradually decreases along the axial direction, and the plurality of convex rings are tightly attached to the plug-in needle.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] When the plug-in needle is butt jointed with the plug-in slot on the intermediate body, the threaded butt joint end at the lower end of the plug-in needle can be assembled with the internal thread at the lower end of the inner wall of the plug-in slot through the thread, and the plug-in needle can gradually extrude the space of the plurality of convex rings in the plug-in process, so that the plurality of convex rings are tightly attached to the periphery of the plug-in needle, and the plurality of convex rings are all located at the upper end of the threaded connection position of the plug-in needle, thereby realizing multiple protection, effectively improving the sealing performance of the plug-in part, reducing the entry of external moisture, dust and other pollutants, and protecting the plug-in needle from the influence of environmental factors.

[0017] The convex ring not only plays a protective role, but also improves the stability of mechanical contact in the contact process. When the plug-in needle is inserted, the gradual compression of the convex ring increases the contact force between the plug-in needle and the plug-in slot, which helps to improve the contact stability and the reliability of electrical connection, reduces the risk of poor electrical contact, and the plug-in needle is tightly connected with the plug-in slot through the thread, and the multiple sealing and protection provided by the convex ring, so that the entire connection structure is more stable when facing external vibration or interference. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is an assembly effect drawing of the overall structure of the utility model;

[0019] Figure 2 is an exploded view of the terminal seat of the utility model;

[0020] Figure 3 is a sectional effect drawing of the terminal seat of the utility model;

[0021] Figure 4 is an enlarged view of A in the utility model Figure 3 .

[0022] In the drawing: 1, terminal seat; 2, intermediate body; 3, plug-in pin; 4, threaded butt joint end; 5, fastening knob; 6, clamping plate; 7, positioning rod; 8, plug-in slot; 9, protruding ring. DETAILED DESCRIPTION

[0023] Please refer to Figures 1-4 , the utility model provides a technical scheme: a split plug-in pin terminal, including terminal seat 1, intermediate body 2 and plug-in pin 3, the top end of terminal seat 1 is connected with plug-in pin 3 through intermediate body 2, and the upper end of the left and right sides of terminal seat 1 is connected with clamping plate 6 through fastening knob 5, fastening knob 5 is provided with two and is connected in the upper side of the two sides of terminal seat 1, clamping plate 6 is provided with two and is respectively connected with the one end of two fastening knobs 5 rotationally, clamping plate 6 is curvedly arranged, the curvature of clamping plate 6 is matched with intermediate body 2, the inner wall of clamping plate 6 is rough, through the combination of fastening knob 5 and clamping plate 6, stable mechanical fixation can be provided, the connection stability between terminal seat 1 and intermediate body 2 can be effectively enhanced, the curvature of clamping plate 6 is matched with intermediate body 2, this design can effectively enhance the clamping force, further improve the firmness of connection, and the friction force is increased through the rough inner wall, to prevent sliding or loosening.

[0024] The bottom end of the plug-in pin 3 is provided with a threaded butt joint end 4, the left and right ends of the bottom of the intermediate body 2 are both fixed with positioning rods 7, the top end of the intermediate body 2 is provided with a plug-in slot 8, the plug-in port in the middle of the inside of the terminal seat 1 and the intermediate body 2 penetrates through, the plug-in port and the plug-in slot 8 are on the same vertical line, a plurality of convex rings 9 are fixed on the upper end of the inner wall of the plug-in slot 8, the plurality of convex rings 9 are equidistantly arranged from top to bottom, the inner wall diameter of the plurality of convex rings 9 gradually decreases along the axial direction, the plurality of convex rings 9 are all closely combined with the plug-in pin 3, the lower end of the inner wall of the plug-in slot 8 is provided with an internal thread matched with the threaded butt joint end 4, the plug-in port between the terminal seat 1 and the intermediate body 2 is arranged to keep vertical butt joint with the plug-in slot 8, so that the alignment during plug-in is more accurate, which is helpful to realize smooth and reliable connection, the plurality of convex rings 9 arranged on the inner wall of the plug-in slot 8 are helpful to improve the contact performance of the plug-in pin 3 and the plug-in slot 8, the gradually reduced inner diameter design of the convex rings 9 can provide progressive contact pressure, enhance the friction force in the plug-in process, so that the plug-in is more stable, the thread on the inner wall of the plug-in slot 8 is matched with the threaded butt joint end 4 of the plug-in pin 3, which is helpful to improve the stability and reliability of plug-in, and avoid loose connection caused by vibration or external force.

[0025] The left and right ends of the inside of the terminal seat 1 are both provided with positioning grooves matched with the two positioning rods 7, which can ensure the accurate positioning between the terminal seat 1 and the intermediate body 2, so that the correct butt joint of each component can be ensured during assembly, and poor terminal contact caused by improper assembly can be avoided.

[0026] The bottom end of the terminal seat 1 can be inserted with an external wire core, during installation, the wire core passes through the plug-in port in the middle of the inside of the terminal seat 1 and the intermediate body 2 and is connected with the plug-in pin 3 in the plug-in slot 8.

[0027] Working principle: when assembling the split plug-in pin terminal, first plug-in the terminal seat 1 and the intermediate body 2, let the positioning rods 7 be inserted into the intermediate body 2 for preliminary positioning, then rotate the two fastening knobs 5 to let the clamping plates 6 approach and clamp the intermediate body 2, then butt joint the plug-in pin 3 with the plug-in slot 8 on the intermediate body 2, the threaded butt joint end 4 at the lower end of the plug-in pin 3 is matched with the thread on the lower end of the inner wall of the plug-in slot 8, which can realize tight and reliable mechanical connection, the structure design of the thread ensures that the plug-in pin 3 can provide sufficient locking force when being inserted into the plug-in slot 8, preventing loose connection caused by vibration or external force, and enhancing the stability of the connection, during the insertion of the plug-in pin 3, the plug-in pin 3 will gradually extrude the space of the plurality of convex rings 9, ensuring that the convex rings 9 are closely combined with the plug-in pin 3 all around, this design can effectively improve the sealing performance of the plug-in part, reducing the entry of external moisture, dust and other pollutants.

Claims

1. A split pin terminal, comprising a terminal base (1), an intermediate body (2) and a plug-in pin (3), characterized in that: the terminal base (1) is connected with the plug-in pin (3) through the intermediate body (2) at the top end, and the upper end of the left and right sides of the terminal base (1) is connected with the clamping plate (6) through the fastening knob (5); the bottom of the intermediate body (2) is fixed with the positioning rod (7) at the left and right ends, the top end of the intermediate body (2) is provided with the plug-in slot (8), and the inner wall of the plug-in slot (8) is fixed with a plurality of convex rings (9) at the upper end; the bottom end of the plug-in pin (3) is provided with a threaded butt joint end (4).

2. The split pin terminal of claim 1, wherein: The fastening knob (5) is provided with two and is threadedly connected to the upper side of the two sides of the terminal base (1), and the clamping plate (6) is provided with two and is rotatably connected with one end of the two fastening knobs (5) respectively.

3. The split pin terminal of claim 2, wherein: The clamping plate (6) is curvedly arranged, the curvature of the clamping plate (6) is matched with the intermediate body (2), and the inner wall of the clamping plate (6) is rough.

4. The split pin terminal of claim 1 wherein: The inner wall of the plug-in slot (8) is provided with an internal thread matched with the threaded butt joint end (4) at the lower end.

5. The split pin terminal of claim 1, wherein: The left and right ends of the inside of the terminal base (1) are provided with positioning grooves matched with the two positioning rods (7).

6. The split pin terminal of claim 1, wherein: The inside of the terminal base (1) and the intermediate body (2) is through the plug-in port, and the plug-in port and the plug-in slot (8) are on the same vertical line.

7. The split pin terminal of claim 1, wherein: A plurality of convex rings (9) are arranged equidistantly from top to bottom, the inner wall diameter of a plurality of convex rings (9) gradually decreases along the axial direction, and a plurality of convex rings (9) are closely combined with the plug-in pin (3).

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