PLC controller

Abstract

The utility model discloses a PLC (Programmable Logic Controller), and belongs to the field of PLCs. Comprising a PLC main body and a plurality of wiring terminals installed at the two ends of the PLC main body, wiring grooves are formed in the top ends of the wiring terminals, lifting plates are slidably inserted in the wiring grooves, wiring heads are embedded in the wiring grooves, clamping blocks abutting against the top ends of the lifting plates are elastically inserted in the two sides of the inner walls of the wiring grooves, and the clamping blocks abut against the top ends of the lifting plates. A button is fixedly installed on one side of the top end face of the lifting plate, a disassembly button is slidably arranged on the other side of the top end face of the lifting plate, a display part is fixedly embedded in the top end of the PLC body, and a signal input terminal is fixed to the PLC body. The bottom wall of the wiring groove and the bottom end of the lifting plate are fixedly provided with electrode plates abutting against the connector lug, and the connector lug is provided with a wire containing hole. The PLC controller has the beneficial effect that the PLC controller which is stable in installation is provided.

Description

Technical Field

[0001] The present application relates to the field of PLC controllers, and in particular, to a PLC controller. Background Art

[0002] PLC controller is an electronic device specially used for industrial automation control. It can control and monitor various mechanical, electrical, hydraulic, pneumatic and other equipment in the industrial production process through programming to realize automated production. PLC controller has the characteristics of high-speed computing capability, programmability, stability and reliability, and is widely used in manufacturing, energy, transportation, construction and other fields.

[0003] Patent application number 202321915917.5 discloses an improved PLC controller, including a PLC controller, a top plate fixedly mounted on the top of the PLC controller, a display and an indicator light fixedly mounted on the top of the top plate, and a rotating shaft 1 rotatably mounted on both sides of the top of the PLC controller. The improved PLC controller is provided with a rotating shaft 2, a switch, a spring, a connecting seat, a baffle, a wiring terminal, a harness protective cover and a clamping column. The switch can rotate around the rotating shaft 2, the clamping column at the bottom of the switch is separated from the connecting seat, and the wiring terminal is placed on the upper side of the connecting seat. At this time, the switch is released, and the spring at the bottom of the switch can push the switch to reset, ensuring that the clamping column tightly presses the wiring terminal.

[0004] The above technical solution utilizes the elastic force of the spring to clamp and fix the wire connected to the PLC controller. The spring is affected by the elastic force during the fixing process, resulting in poor stability of the wire fixation on the PLC controller. Utility Model Content

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a PLC controller, including a PLC controller body and a plurality of wiring terminals installed at both ends of the PLC controller body, a wiring groove is opened at the top of the wiring terminal, a lifting plate is slidably inserted in the wiring groove, and a wiring head is embedded in the wiring groove, wherein blocks that abut against the top of the lifting plate are elastically inserted on both sides of the inner wall of the wiring groove, a button is fixedly installed on one side of the top surface of the lifting plate, and a disassembly button is slidably provided on the other side of the top surface of the lifting plate.

[0007] By installing multiple wiring terminals on the PLC controller body, a wiring head is embedded in the wiring slot on the wiring terminal, and the lifting plate is squeezed downward by the installation button to make the electrode plate on the lifting plate abut against the wiring head. At the same time, the lifting plate passes through the card block, and the fastening spring in the telescopic groove pushes the card block to protrude from the top of the lifting plate, so that the lifting plate is fixed in the wiring slot. When removing the wiring head, the disassembly button is squeezed downward, and the fastening spring is squeezed to shrink into the telescopic groove during the movement, and when the disassembly button is released, the reset spring at the bottom of the insulating locating pin pushes the lifting plate to move upward, so that the electrode plate at the bottom of the lifting plate is separated from the wiring head, which is convenient for clamping and removing the wiring head, thereby improving the stability of the wiring head after installation.

[0008] Furthermore, a display unit is embedded and fixed on the top of the PLC controller body, and a signal input terminal is fixed on the PLC controller body.

[0009] Furthermore, the bottom wall of the wiring slot and the bottom end of the lifting plate are both fixed with electrode plates that abut against the wiring head, and the wiring head is provided with a wire accommodating hole.

[0010] Furthermore, a through hole is provided on the lifting plate, and an insulating positioning pin which is slidably inserted in the through hole is fixed on the bottom wall of the wiring slot.

[0011] Furthermore, a reset spring is sleeved on the bottom end of the insulating positioning pin, and two ends of the reset spring are respectively in contact with the lifting plate and the inner wall of the wiring slot.

[0012] Furthermore, both sides of the inner wall of the wiring slot are provided with card slots, and the outer wall of the installation button is protrudingly arranged and slidably inserted in the card slots.

[0013] Furthermore, an expansion slot is provided on the inner wall of the wiring slot, and a fastening spring is embedded in the expansion slot.

[0014] Furthermore, a clamping block is slidably inserted in the telescopic slot, and one end of the clamping block extending out of the telescopic slot abuts against the top end of the lifting plate.

[0015] The beneficial effects of the present application are as follows: by installing multiple wiring terminals on the PLC controller body, a wiring head is embedded in the wiring slot on the wiring terminal, and the lifting plate is squeezed downward by the installation button to make the electrode plate on the lifting plate abut against the wiring head. At the same time, the lifting plate passes through the card block, and the fastening spring in the telescopic slot pushes the card block to protrude from the top of the lifting plate, so that the lifting plate is fixed in the wiring slot. When removing the wiring head, the removal button is squeezed downward, and the fastening spring is squeezed to shrink into the telescopic slot during the movement. When the removal button is released, the reset spring at the bottom of the insulating positioning pin pushes the lifting plate upward, so that the electrode plate at the bottom of the lifting plate is separated from the wiring head, which is convenient for clamping and removing the wiring head, thereby improving the stability of the wiring head after installation, and providing a PLC controller with stable wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the structure of the wiring terminal;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the terminal block;

[0019] Figure 4 It is a schematic diagram of the internal structure of the terminal block.

[0020] Explanation of the accompanying drawings: 1. PLC controller body; 2. Display unit; 3. Wiring terminal; 4. Wiring head; 5. Wire accommodating hole; 6. Wiring slot; 7. Installation button; 8. Removal button; 9. Reset spring; 10. Electrode plate; 11. Lifting plate; 12. Insulating positioning pin; 13. Through hole; 14. Card block; 15. Telescopic slot; 16. Card slot; 17. Fastening spring; 18. Signal input terminal. DETAILED DESCRIPTION

[0021] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0022] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0023] Reference Figure 1 and Figure 2A PLC controller comprises a PLC controller body 1 and a plurality of wiring terminals 3 installed at both ends of the PLC controller body 1, a wiring slot 6 is provided at the top of the wiring terminal 3, a lifting plate 11 is slidably inserted in the wiring slot 6, and a wiring head 4 is embedded in the wiring slot 6, wherein blocks 14 abutting against the top of the lifting plate 11 are elastically inserted on both sides of the inner wall of the wiring slot 6, a button 7 is fixedly installed on one side of the top surface of the lifting plate 11, and a disassembly button 8 is slidably provided on the other side of the top surface of the lifting plate 11.

[0024] A display unit 2 is embedded and fixed at the top of the PLC controller body 1, and a signal input terminal 18 is fixed on the PLC controller body 1. The bottom wall of the wiring slot 6 and the bottom end of the lifting plate 11 are fixed with an electrode plate 10 that abuts against the wiring head 4. The wiring head 4 is provided with a wire accommodating hole 5, and the lifting plate 11 is provided with a through hole 13. The bottom wall of the wiring slot 6 is fixed with an insulating positioning pin 12 that is slidably inserted in the through hole 13. The installation button 7 squeezes the lifting plate 11 to move downward, so that the electrode plate 10 on the lifting plate 11 abuts against the wiring head 4. At the same time, the lifting plate 11 passes through the block 14, and the fastening spring 17 in the telescopic slot 15 pushes the block 14 to protrude from the top of the lifting plate 11, thereby fixing the lifting plate 11 in the wiring slot 6.

[0025] Reference Figure 3 and Figure 4 The bottom end of the insulating positioning pin 12 is sleeved with a reset spring 9, and the two ends of the reset spring 9 are respectively abutted against the inner walls of the lifting plate 11 and the wiring slot 6. Both sides of the inner wall of the wiring slot 6 are provided with card slots 16, and the outer wall of the installation button 7 is protruding and slidably inserted in the card slot 16. The inner wall of the wiring slot 6 is provided with a telescopic slot 15, and a fastening spring 17 is embedded in the telescopic slot 15. A card block 14 is slidably inserted in the telescopic slot 15. One end of the card block 14 extends out of the telescopic slot 15 and abuts against the top of the lifting plate 11, squeezing the disassembly button 8 to move downward, and squeezing the fastening spring 17 to shrink into the telescopic slot 15 during the movement. When the disassembly button 8 is released, the reset spring 9 at the bottom of the insulating positioning pin 12 pushes the lifting plate 11 to move upward, thereby separating the electrode plate 10 at the bottom of the lifting plate 11 from the terminal head 4.

[0026] Working principle: When in use, insert the terminal 4 into the terminal slot 6 on the terminal 3, hold the installation button 7 to squeeze the lifting plate 11 and move it downward, so that the electrode plate 10 on the lifting plate 11 abuts against the terminal 4, and at the same time, the lifting plate 11 passes through the block 14, and the fastening spring 17 in the telescopic groove 15 pushes the block 14 to protrude from the top of the lifting plate 11, so that the lifting plate 11 is fixed in the terminal slot 6. When removing the terminal 4, squeeze the removal button 8 and move it downward, and squeeze the fastening spring 17 to shrink into the telescopic groove 15 during the movement, and when the removal button 8 is released, the reset spring 9 at the bottom of the insulating positioning pin 12 pushes the lifting plate 11 to move upward, so that the electrode plate 10 at the bottom of the lifting plate 11 is separated from the terminal 4, which is convenient for clamping and removing the terminal 4, and improves the stability of the terminal 4 after installation.

[0027] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A PLC controller, comprising: A PLC controller body (1) and a plurality of connection terminals (3) installed at two ends of the PLC controller body (1); The invention is characterized in that: a wiring slot (6) is provided at the top of the wiring terminal (3), a lifting plate (11) is slidably inserted in the wiring slot (6), and a wiring head (4) is embedded in the wiring slot (6), wherein both sides of the inner wall of the wiring slot (6) are elastically inserted with a clamping block (14) that abuts against the top of the lifting plate (11), a button (7) is fixed on one side of the top surface of the lifting plate (11), and a disassembly button (8) is slidably provided on the other side of the top surface of the lifting plate (11).

2. The PLC controller according to claim 1, characterized in that: A display unit (2) is embedded and fixed at the top of the PLC controller body (1), and a signal input terminal (18) is fixed on the PLC controller body (1).

3. The PLC controller according to claim 1, characterized in that: The bottom wall of the wiring slot (6) and the bottom end of the lifting plate (11) are both fixed with an electrode plate (10) that abuts against the wiring head (4), and the wiring head (4) is provided with a wire accommodating hole (5).

4. The PLC controller according to claim 1, characterized in that: The lifting plate (11) is provided with a through hole (13), and the bottom wall of the wiring slot (6) is fixed with an insulating positioning pin (12) which is slidably inserted in the through hole (13).

5. The PLC controller according to claim 4, characterized in that: A reset spring (9) is sleeved and installed on the bottom end of the insulating positioning pin (12), and the two ends of the reset spring (9) are respectively in contact with the lifting plate (11) and the inner wall of the wiring slot (6).

6. The PLC controller according to claim 1, characterized in that: Both sides of the inner wall of the wiring slot (6) are provided with card slots (16), and the outer wall of the installation button (7) is protrudingly arranged and slidably inserted into the card slots (16).

7. The PLC controller according to claim 1, characterized in that: The inner wall of the wiring slot (6) is provided with a telescopic slot (15), and a fastening spring (17) is embedded in the telescopic slot (15).

8. The PLC controller according to claim 7, characterized in that: A clamping block (14) is slidably inserted in the telescopic slot (15), and one end of the clamping block (14) extending out of the telescopic slot (15) abuts against the top end of the lifting plate (11).

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