Three-row terminal connector with secondary lock

Abstract

The utility model provides a three-row terminal connector with a secondary lock, which comprises a plastic main body, two limiting grooves are symmetrically arranged on two sides of the plastic main body, and a row of first insertion holes, a row of second insertion holes and a row of third insertion holes are arranged on the upper side of the plastic main body. The second insertion hole is located between the first insertion hole and the third insertion hole, a secondary lock is inserted into one side of the plastic body, a limiting structure is installed on one side of the secondary lock, and a first terminal, a second terminal and a third terminal are inserted into the first insertion hole, the second insertion hole and the third insertion hole respectively. The first terminal, the second terminal and the third terminal penetrate through the secondary lock, and compared with the prior art, the terminal connector has the following beneficial effects that the installation cost of the terminals is saved, and the adaptability of the terminal connector is improved.

Description

Technical Field

[0001] The utility model relates to a three-row terminal connector with a secondary lock, belonging to the field of terminal connectors. Background Technique

[0002] A terminal is a fitting product used to achieve electrical connection, which is classified as a connector in the industry. With the increasing level of industrial automation and the increasingly strict and precise requirements of industrial control, the usage of terminals has gradually increased. With the development of the electronics industry, the application scope of terminals is getting wider and wider, and the types are also increasing. In addition to PCB board terminals, the most widely used ones also include hardware terminals, nut terminals, spring terminals, etc. In the prior art, when there are differences in the PITCH, front-to-back spacing, up-and-down height, and terminal direction of the three-row terminals, it is necessary to use single-row terminal connectors of different specifications to fix the positions of each row of terminals respectively, which increases the installation cost of the terminals. Therefore, it is necessary to design a three-row terminal connector with a secondary lock that can reduce the terminal installation cost. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a three-row terminal connector with a secondary lock to solve the problems put forward in the above background technique. The utility model saves the installation cost of the terminals and improves the adaptability of the terminal connector.

[0004] In order to achieve the above purpose, the utility model is realized through the following technical solutions: A three-row terminal connector with a secondary lock includes a plastic main body. Two limiting grooves are symmetrically opened on both sides of the plastic main body. A row of first insertion holes, a row of second insertion holes, and a row of third insertion holes are opened on the upper side of the plastic main body. The second insertion hole is located between the first insertion hole and the third insertion hole. A secondary lock is inserted on one side of the plastic main body. A limiting structure is installed on one side of the secondary lock. The first insertion hole, the second insertion hole, and the third insertion hole are respectively inserted with a first terminal, a second terminal, and a third terminal. The first terminal, the second terminal, and the third terminal penetrate through the secondary lock.

[0005] Furthermore, clamping blocks are symmetrically installed on both sides of the secondary lock. Springs are installed on the sides of the clamping blocks close to the secondary lock. The springs are installed in the movable grooves, and the movable grooves are opened on the secondary lock. The clamping blocks are inserted into the limiting grooves.

[0006] Furthermore, a row of first locking holes, a row of second locking holes, and a row of third locking holes are opened on the secondary lock. The sizes of the first locking holes, the second locking holes, and the third locking holes are respectively matched with the first insertion hole, the second insertion hole, and the third insertion hole. The first locking hole, the second locking hole, and the third locking hole are respectively inserted with a first terminal, a second terminal, and a third terminal.

[0007] Further, the first locking hole and the second locking hole are of a fully enclosed frame opening structure, and the third locking hole is of a semi-enclosed frame opening structure.

[0008] Further, a first positioning block, a second positioning block, and a third positioning block are respectively installed on the first locking hole, the second locking hole, and the third locking hole. First card slots, second card slots, and third card slots are respectively formed on the first terminal, the second terminal, and the third terminal. The first positioning block, the second positioning block, and the third positioning block are respectively installed in the first card slot, the second card slot, and the third card slot.

[0009] Further, the limiting structure includes a protective shell which is installed on the plastic main body. A moving groove is formed on one side of the protective shell. An adjusting knob is installed on one side of the moving groove. A screw rod is installed on the side of the adjusting knob close to the protective shell. A scale bar is installed on one side of the protective shell and is located above the moving groove. The other end of the screw rod is inserted into a threaded hole which is formed on a rotating shaft. A stop block is installed on the side of the rotating shaft away from the plastic main body. A torsion spring is installed on the stop block, and the other end of the torsion spring is installed on the protective shell. A baffle is installed on the lower side of the rotating shaft. Two limiting blocks are symmetrically installed on the secondary lock. An insertion block is installed on the front side of the limiting block, and the height of the insertion block is lower than that of the limiting block. The front side of the limiting block is in contact with the baffle.

[0010] The beneficial effects of the present utility model: For a three-row terminal connector with a secondary lock of the present utility model, the distances between each row of the first insertion hole, the second insertion hole, and the third insertion hole are different, the terminal PITCH of the first insertion hole, the second insertion hole, and the third insertion hole is different, and the terminal card distances are different. The first terminal, the second terminal, and the third terminal are inserted into the first insertion hole, the second insertion hole, and the third insertion hole, and the secondary lock is further pushed inward to fix its position respectively by the first positioning block, the second positioning block, and the third positioning block, so as to realize the locking of the terminals and the plastic main body under the conditions that the PITCH, the front and rear distances, the up and down heights, and the terminal directions of the three rows of terminals are all different, thereby improving the fixing effect of the terminals.

[0011] By pushing the secondary lock into the plastic main body to drive the first positioning block, the second positioning block, and the third positioning block to be respectively inserted into the first card slot, the second card slot, and the second card slot, the first terminal, the second terminal, and the third terminal are locked with the plastic main body, thereby reducing the probability of the first terminal, the second terminal, or the third terminal falling off from the inside of the plastic main body and making the connection more stable.

[0012] When inserting the secondary lock into the plastic body, when the limit block installed above the secondary lock is about to contact the baffle, it reminds the installer that the first locking hole, the second locking hole, and the third locking hole on the secondary lock are all aligned with the first insertion hole, the second insertion hole, and the third insertion hole opened on the plastic body, so that the first terminal, the second terminal, and the third terminal can be inserted into the plastic body. After the insertion is completed, continue to push the secondary lock, so that the limit block squeezes and stretches the torsion spring upward, driving the baffle to fit against the top of the protective shell, so that the secondary lock is completely inserted into the plastic body, improving the insertion efficiency of the secondary lock and avoiding repeatedly adjusting the position of the secondary lock when the hole positions are not fully aligned.

[0013] Through the cooperation of the set adjusting knob and the moving groove, rotating the adjusting knob drives the screw rod to turn out of the screw hole, thereby adjusting the position of the baffle, facilitating the adjustment of the baffle to a suitable position to remind the installer that the hole positions are aligned. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects, and advantages of the present utility model will become more apparent:

[0015] Figure 1 It is a schematic diagram of the overall structure of a three-row terminal connector with a secondary lock according to the present utility model;

[0016] Figure 2 It is a top view of the plastic body in a three-row terminal connector with a secondary lock according to the present utility model;

[0017] Figure 3 It is a top view of the secondary lock in a three-row terminal connector with a secondary lock according to the present utility model;

[0018] Figure 4 It is a sectional view of the plastic body in a three-row terminal connector with a secondary lock according to the present utility model;

[0019] Figure 5 It is an enlarged view of A in a three-row terminal connector with a secondary lock according to the present utility model;

[0020] Figure 6 It is a schematic diagram of the internal structure of the protective shell in a three-row terminal connector with a secondary lock according to the present utility model;

[0021] Figure 7 It is a sectional view of the secondary lock in a three-row terminal connector with a secondary lock according to the present utility model;

[0022] In the figure: 1, plastic main body; 2, limiting groove; 3, first insertion hole; 4, second insertion hole; 5, third insertion hole; 6, secondary lock; 7, clamping block; 8, first locking hole; 9, second locking hole; 10, third locking hole; 11, limiting block; 12, insertion block; 13, first positioning block; 14, second positioning block; 15, third positioning block; 16, first terminal; 17, second terminal; 18, third terminal; 19, protective shell; 20, scale bar; 21, adjusting knob; 22, moving groove; 23, screw hole; 24, rotating shaft; 25, stop block; 26, baffle plate. Detailed implementation manner

[0023] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0024] Please refer to Figures 1 - 7 , the present utility model provides a technical solution: a three-row terminal connector with a secondary lock, including a plastic main body 1, two limiting grooves 2 are symmetrically opened on both sides of the plastic main body 1, a row of first insertion holes 3, a row of second insertion holes 4 and a row of third insertion holes 5 are opened on the upper side of the plastic main body 1, the second insertion hole 4 is located between the first insertion hole 3 and the third insertion hole 5, a secondary lock 6 is inserted on one side of the plastic main body 1, a limiting structure is installed on one side of the secondary lock 6, a first terminal 16, a second terminal 17 and a third terminal 18 are respectively inserted into the first insertion hole 3, the second insertion hole 4 and the third insertion hole 5, the first terminal 16, the second terminal 17 and the third terminal 18 penetrate through the secondary lock 6, a first positioning block 13, a second positioning block 14 and a third positioning block 15 are respectively installed on the first locking hole 8, the second locking hole 9 and the third locking hole 10, a first card slot, a second card slot and a third card slot are respectively opened on the first terminal 16, the second terminal 17 and the third terminal 18, and the first positioning block 13, the second positioning block 14 and the third positioning block 15 are respectively installed in the first card slot, the second card slot and the third card slot. Through the cooperation of the provided first insertion hole 3, second insertion hole 4 and third insertion hole 5, terminals of different models can be inserted.

[0025] Please refer to Figure 2 and Figure 3, clamping blocks 7 are symmetrically installed on both sides of the secondary lock 6. A spring is installed on the side of the clamping block 7 close to the secondary lock 6. The spring is installed in the movable groove, which is opened on the secondary lock 6. The clamping block 7 is inserted into the limiting groove 2. A row of first locking holes 8, a row of second locking holes 9 and a row of third locking holes 10 are opened on the secondary lock 6. The sizes of the first locking hole 8, the second locking hole 9 and the third locking hole 10 respectively match the first insertion hole 3, the second insertion hole 4 and the third insertion hole 5. A first terminal 16, a second terminal 17 and a third terminal 18 are respectively inserted into the first locking hole 8, the second locking hole 9 and the third locking hole 10. The first locking hole 8 and the second locking hole 9 are of a fully enclosed frame structure, and the third locking hole 10 is of a semi-enclosed frame structure. Through the cooperation of the secondary lock 6 and the plastic main body 1 provided, the positions of the first terminal 16, the second terminal 17 and the third terminal 18 are fixed, preventing the first terminal 16, the second terminal 17 and the third terminal 18 from being easily separated from the plastic main body 1 during use.

[0026] Please refer to Figure 5 and Figure 6 , the limiting structure includes a protective shell 19, which is installed on the plastic main body 1. A moving groove 22 is opened on one side of the protective shell 19. An adjusting knob 21 is installed on one side of the moving groove 22. A screw rod is installed on the side of the adjusting knob 21 close to the protective shell 19. A scale bar 20 is installed on one side of the protective shell 19, and the scale bar 20 is located above the moving groove 22. The other end of the screw rod is inserted into the threaded hole 23, which is opened on the rotating shaft 24. A stopper 25 is installed on the side of the rotating shaft 24 away from the plastic main body 1. A torsion spring is installed on the stopper 25, and the other end of the torsion spring is installed on the protective shell 19. A baffle 26 is installed on the lower side of the rotating shaft 24. Two limiting blocks 11 are symmetrically installed on the secondary lock 6. An inserting block 12 is installed on the front side of the limiting block 11, and the height of the inserting block 12 is lower than that of the limiting block 11. The front side of the limiting block 11 is in contact with the baffle 26. By setting the cooperation of the adjusting knob 21 and the screw rod, the locking relationship between the rotating shaft 24 and the protective shell 19 can be released, driving the baffle 26 to adjust its position inside the protective shell 19 so that the secondary lock 6 stops at a suitable position each time.

[0027] Specific implementation manner: The spacing between each row of the first insertion hole 3, the second insertion hole 4, and the third insertion hole 5 is different, the terminal PITCH of the first insertion hole 3, the second insertion hole 4, and the third insertion hole 5 is different, and the terminal card distance is different. The first terminal 16, the second terminal 17, and the third terminal 18 are inserted into the first insertion hole 3, the second insertion hole 4, and the third insertion hole 5. Then, the secondary lock 6 is pushed inward continuously, and its position is fixed by the first positioning block 13, the second positioning block 14, and the third positioning block 15 respectively. Thus, when the PITCH, the front-back spacing, the up-down height, and the terminal direction of the three rows of terminals are all different, the terminals are locked with the plastic main body 1, improving the fixing effect of the terminals. By pushing the secondary lock 6 into the plastic main body 1, the first positioning block 13, the second positioning block 14, and the third positioning block 15 driven by it are respectively inserted into the first card slot, the second card slot, and the second card slot, locking the first terminal 16, the second terminal 17, and the third terminal 18 with the plastic main body 1. Thus, the probability of the first terminal 16, the second terminal 17, or the third terminal 18 falling off from the inside of the plastic main body 1 is reduced, making the connection more stable. When the secondary lock 6 is inserted into the plastic main body 1, when the limit block 11 installed above the secondary lock 6 contacts the baffle 26, it reminds the installer that the first lock hole 8, the second lock hole 9, and the third lock hole 10 on the secondary lock 6 are all aligned with the first insertion hole 3, the second insertion hole 4, and the third insertion hole 5 opened on the plastic main body 1, and the first terminal 16, the second terminal 17, and the third terminal 18 can be inserted into the plastic main body 1. After the insertion is completed, the secondary lock 6 is pushed continuously, so that the limit block 11 squeezes and stretches the torsion spring upward, driving the baffle 26 to fit with the top of the protective shell 19, so that the secondary lock 6 is completely inserted into the plastic main body 1, improving the insertion efficiency of the secondary lock 6 and avoiding repeatedly adjusting the position of the secondary lock 6 due to incomplete alignment of the holes. Through the cooperation of the set adjusting knob 21 and the moving groove 22, the adjusting knob 21 is rotated to drive the screw rod out of the screw hole 23, thereby adjusting the position of the baffle 26, facilitating the adjustment of the baffle 26 to a suitable position to remind the installer that the hole alignment is completed.

[0028] Although this specification is described according to the implementation manners, not each implementation manner only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A three-row terminal connector with a secondary lock, comprising a plastic body (1), characterized in that: Two limiting grooves (2) are symmetrically provided on both sides of the plastic body (1); a row of first insertion holes (3), a row of second insertion holes (4) and a row of third insertion holes (5) are provided on the upper side of the plastic body (1); the second insertion holes (4) are located between the first insertion holes (3) and the third insertion holes (5); a secondary lock (6) is inserted on one side of the plastic body (1); a limiting structure is installed on one side of the secondary lock (6); a first terminal (16), a second terminal (17) and a third terminal (18) are respectively inserted in the first insertion hole (3), the second insertion hole (4) and the third insertion hole (5); the first terminal (16), the second terminal (17) and the third terminal (18) pass through the secondary lock (6).

2. A three-row terminal connector with a secondary lock according to claim 1, characterized in that: The secondary lock (6) is symmetrically provided with clamping blocks (7), and a spring is provided on the side of the clamping block (7) close to the secondary lock (6). The spring is installed in a movable groove, and the movable groove is provided on the secondary lock (6). The clamping block (7) is inserted in the limiting groove (2).

3. A three-row terminal connector with a secondary lock according to claim 1, characterized in that: The secondary lock (6) is provided with a row of first locking holes (8), a row of second locking holes (9) and a row of third locking holes (10); the sizes of the first locking holes (8), the second locking holes (9) and the third locking holes (10) are respectively matched with the first insertion hole (3), the second insertion hole (4) and the third insertion hole (5); the first locking holes (8), the second locking holes (9) and the third locking holes (10) are respectively inserted with a first terminal (16), a second terminal (17) and a third terminal (18).

4. A three-row terminal connector with a secondary lock according to claim 3, characterized in that: The first locking hole (8) and the second locking hole (9) are fully enclosed frame structures, and the third locking hole (10) is a semi-enclosed frame structure.

5. A three-row terminal connector with a secondary lock according to claim 3, characterized in that: The first locking hole (8), the second locking hole (9) and the third locking hole (10) are respectively provided with a first positioning block (13), a second positioning block (14) and a third positioning block (15); the first terminal (16), the second terminal (17) and the third terminal (18) are respectively provided with a first card slot, a second card slot and a third card slot; the first card slot, the second card slot and the third card slot are respectively provided with a first positioning block (13), a second positioning block (14) and a third positioning block (15).

6. A three-row terminal connector with a secondary lock according to claim 1, characterized in that: The limiting structure comprises a protective shell (19), wherein the protective shell (19) is mounted on the plastic body (1), a movable groove (22) is provided on one side of the protective shell (19), an adjusting knob (21) is installed on one side of the movable groove (22), a screw is installed on the side of the adjusting knob (21) close to the protective shell (19), a scale bar (20) is installed on one side of the protective shell (19), the scale bar (20) is located on the upper side of the movable groove (22), the other end of the screw is inserted in a screw hole (23), and the screw hole (23) is provided at the rotation position. A stopper (25) is installed on the shaft (24), a side of the shaft (24) away from the plastic body (1), a torsion spring is installed on the stopper (25), the other end of the torsion spring is installed on the protective shell (19), a baffle (26) is installed on the lower side of the shaft (24), two limit blocks (11) are symmetrically installed on the secondary lock (6), the front side of the limit block (11) is installed with an insert block (12), the height of the insert block (12) is lower than the height of the limit block (11), and the front side of the limit block (11) is connected to the baffle (26).

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