Relay pin structure

Abstract

The utility model discloses a relay pin structure comprising a relay main body, the relay main body is provided with a pedestal, a pin penetrates through the pedestal, the pedestal is covered with a housing, the pedestal is provided with a square through hole corresponding to the position of the pin, and a positioning seat is fixedly clamped in the square through hole of the pedestal in a fastening manner. A pin fixing piece of a circular structure is fixed to the pin through welding, a connecting block of an integrated structure is arranged on the side face of the pin fixing piece, connecting holes are formed in the connecting block, the pin fixing piece is movably clamped in the positioning base, and sealing waterproof rings are further fastened and clamped to the positioning base and the pin fixing piece. According to the relay pin structure, under the condition of ensuring the sealed installation of the pins, the pins can be subjected to offset rotation processing, so that the influence caused by processing errors is avoided, the reworking condition caused by pin errors is reduced, and the processing efficiency of the relay is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a relay pin structure. Background Art

[0002] A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirements, it causes a predetermined step change in the controlled quantity in the electrical output circuit. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is usually used in automated control circuits. A relay is actually an "automatic switch" that uses a small current to control the operation of a large current, so it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit. A relay is an automatic switching element with an isolation function. It is widely used in remote control, telemetry, communication, automatic control, mechatronics, and power electronic equipment. It is one of the most important control elements.

[0003] Existing relays are mainly composed of basic parts such as coils, cores, contacts, springs, and shells. When the relay is in use, the internal coil, contacts, and external circuits are connected through pins. The assembly of the relay must ensure that each pin is accurately positioned. Once the pin position deviates, it will affect the assembly of the relay. Therefore, the accuracy of the pins needs to be detected during relay processing, and the pins with errors need to be reworked, resulting in low work efficiency. Utility Model Content

[0004] The utility model aims to provide a relay pin structure to solve the problem raised in the above background technology that when the relays on the market are in use, the internal coil, the contact and the external circuit are connected through the pins. The relay assembly must ensure that each pin is accurately positioned. Once the pin position deviates, it will affect the assembly of the relay. Therefore, when the relay is processed, the pin accuracy needs to be detected, and the pins with errors need to be reworked, resulting in low work efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a relay pin structure, comprising a relay body, a base is provided on the relay body, and pins are penetrated in the base, and a shell is provided on the base, a square through hole corresponding to the position of the pin is opened on the base, and a positioning seat is fastened and fixed in the square through hole of the base, a pin fixing piece with a circular structure is fixed on the pin by welding, and a connecting block with an integral structure is provided on the side of the pin fixing piece, and connecting holes are respectively opened on the connecting block, the pin fixing piece is movably engaged in the positioning seat, and a sealing waterproof ring is also fastened and fixed on the positioning seat and the pin fixing piece.

[0006] Preferably, the outer ring of the sealing and waterproof ring is stepped, and a fastening protrusion of an integral structure is provided on one side of the sealing and waterproof ring.

[0007] Preferably, the positioning seat is further provided with mounting grooves, and the mounting grooves are distributed in a cross-shaped structure.

[0008] Preferably, the installation groove and the fastening protrusion are in interference fit, and the positions of the installation groove and the connecting block also correspond.

[0009] Preferably, springs are respectively provided on both sides of the connecting block, and the springs are placed in the mounting grooves.

[0010] Preferably, a connecting hook is provided at one end of the spring, and the connecting hook is hooked in the connecting hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the relay pin structure allows the pin to be offset and rotated while ensuring the sealed installation of the pin, thereby avoiding the influence caused by processing errors, reducing the rework caused by the pin error, and improving the processing efficiency of the relay. The relay pin structure fixes the pin through a pin fixing member, which is rotatably installed by a positioning seat and rotated and tightened by a spring to ensure the tightness of the pin assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a relay pin structure of the utility model;

[0013] Figure 2 A relay pin structure of the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0014] Figure 3 This is a schematic diagram of a structure in which a pin of a relay pin structure is connected to a positioning seat through a pin fixing member of the utility model;

[0015] Figure 4 The utility model is a schematic diagram of a sealing waterproof ring structure of a relay pin structure.

[0016] In the figure: 1. relay body; 2. housing; 3. sealing waterproof ring; 301. fastening protrusion; 4. base; 5. positioning seat; 501. mounting groove; 6. pin fixing piece; 601. connecting block; 602. connecting hole; 7. pin; 8. spring; 801. connecting hook. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides a technical solution: a relay pin structure, including a relay body 1, a base 4 is provided on the relay body 1, and a pin 7 is penetrated in the base 4, and a shell 2 is provided on the base 4, a square through hole corresponding to the position of the pin 7 is opened on the base 4, and a positioning seat 5 is fastened and fixed in the square through hole of the base 4, and a mounting groove 501 is also opened in the positioning seat 5, and the mounting groove 501 is distributed in a cross-shaped structure. The positioning seat 5 of this structure can be relatively stable to the base 4 through the square structure, and the base 4 and the positioning seat 5 are welded and fixed, so that the pin 7 can be fixed to the positioning seat 5 through the pin fixing piece 6, and the connection between the positioning seat 5 and the base 4 can realize the penetration and fixation of the pin 7 relative to the base 4. A circular pin fixing piece 6 is fixed to the pin 7 by welding, and a connecting block 601 of an integral structure is provided on the side of the pin fixing piece 6, and connecting holes 602 are respectively opened on the connecting blocks 601, and the pin fixing piece 6 is movably engaged in the positioning seat 5, and a sealing waterproof ring 3 is also fastened and fastened to the positioning seat 5 and the pin fixing piece 6, and the outer ring of the sealing waterproof ring 3 is stepped, and one side of the sealing waterproof ring 3 is provided with a fastening protrusion 301 of an integral structure, and the sealing waterproof ring 3 of this structure can seal the gap between the pin fixing piece 6 and the positioning seat 5, ensure the sealing of the pin 7 on the base 4, and avoid damage to the internal structure of the relay body 1, and at the same time, the sealing waterproof ring 3 acts as a cover for the upper end of the positioning seat 5 so that the positioning seat 5 is connected to the pin fixing member 6 for relative stability, the installation groove 501 and the fastening protrusion 301 are interference fit, and the installation groove 501 and the connection block 601 are also corresponding in position. This structure enables the sealing waterproof ring 3 to be fastened by the fastening protrusion 301 and the installation groove 501, so as to achieve a tight connection between the sealing waterproof ring 3 and the pin fixing member 6 and the positioning seat 5, thereby ensuring the sealing effect and the stability of the connection between the pin fixing member 6 and the positioning seat 5. The connection block 601 is located in the installation groove 501, so that the connection block 601 can limit the rotation of the pin fixing member 6 relative to the positioning seat 5 under the limit of the installation groove 501. Springs 8 are respectively provided on both sides of the connection block 601, and the springs 8 are placed in the installation groove 50 1, this structure enables the relay body 1 to be assembled through the pin 7, and the pin 7 can be rotated relative to the positioning seat 5 through the pin fixing piece 6, so as to avoid the problem of inadequate assembly caused by the position deflection of the pin 7 of the sheet structure. When the pin fixing piece 6 rotates relative to the positioning seat 5, the connecting block 601 moves in the mounting groove 501 and compresses the spring 8. The spring 8 is fastened in position by the cooperation of the sealing waterproof ring 3 and the mounting groove 501, so as to ensure that the spring 8 is contracted and stretched when subjected to pressure, and after the relay body 1 is assembled through the pin 7, it is fastened by the reset of the spring 8, so as to ensure the stability of the pin 7. One end of the spring 8 is provided with a connecting hook 801, and the connecting hook 801 is hooked in the connecting hole 602.This structure allows the spring 8 to be firmly fixed to the connection block 601 through the cooperation between the connection hook 801 and the connection hole 602, and realizes the compression and stretching of the spring 8 when the connection block 601 moves. By making the pin 7 deflectable, the pin structure of the traditional relay is avoided from being directly fixed on the base plate, avoiding the influence caused by the position deviation of the pin 7, reducing the rework caused by the error of the pin 7, and improving the processing efficiency of the relay body 1.

[0019] Working principle: When using the relay pin structure, first, when assembling the pin 7, the relay body 1 is fixed by welding the pin 7 and the pin fixing member 6, so that the pin 7 is firmly inserted into the pin fixing member 6, and then the spring 8 is hooked on the connecting block 601 through the connection hook 801 and the connection hole 602. The positioning seat 5 is clamped in the corresponding position on the base 4 and then welded and fixed. Then the pin 7 is passed through the positioning seat 5. After the pin fixing member 6 is clamped into the positioning seat 5, it is ensured that the connecting block 601 is placed in the installation groove 501, and then the spring 8 is completely placed in the installation groove. 501, and then the sealing waterproof ring 3 is clamped between the positioning seat 5 and the pin fixing piece 6, and the fastening protrusion 301 is interference fit in the installation groove 501. After the deflectable assembly of the pin 7 is completed, the assembly of other parts of the relay body 1 can be carried out, and finally the housing 2 is fixed, so that when the relay body 1 is matched through the pin 7, the pin 7 can be rotated relative to the positioning seat 5 through the pin fixing piece 6, and the connecting block 601 can flexibly compress and stretch the spring 8 in the installation groove 501, so that the pin 7 can be smoothly inserted into the socket after being deflected according to the position of the socket hole, thereby completing a series of work.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A relay pin structure, comprising a relay body (1), characterized in that: The relay body (1) is provided with a base (4), and a plug pin (7) is passed through the base (4), and a housing (2) is provided on the base (4), a square through hole corresponding to the position of the plug pin (7) is provided on the base (4), and a positioning seat (5) is fastened and fixed in the square through hole of the base (4), a plug pin fixing piece (6) with a circular structure is fixed to the plug pin (7) by welding, and a connecting block (601) with an integral structure is provided on the side of the plug pin fixing piece (6), and connecting holes (602) are respectively provided on the connecting block (601), the plug pin fixing piece (6) is movably engaged in the positioning seat (5), and a sealing waterproof ring (3) is also fastened and fixed on the positioning seat (5) and the plug pin fixing piece (6).

2. A relay pin structure according to claim 1, characterized in that: The outer ring of the sealing waterproof ring (3) is in a stepped shape, and a fastening protrusion (301) of an integral structure is provided on one side of the sealing waterproof ring (3).

3. A relay pin structure according to claim 1, characterized in that: The positioning seat (5) is also provided with mounting grooves (501), and the mounting grooves (501) are distributed in a cross-shaped structure.

4. A relay pin structure according to claim 3, characterized in that: The installation groove (501) and the fastening protrusion (301) are in interference fit, and the positions of the installation groove (501) and the connection block (601) also correspond.

5. A relay pin structure according to claim 4, characterized in that: Springs (8) are respectively provided on both sides of the connection block (601), and the springs (8) are placed in the installation grooves (501).

6. A relay pin structure according to claim 5, characterized in that: One end of the spring (8) is provided with a connecting hook (801), and the connecting hook (801) is hooked in the connecting hole (602).

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