Power line misconnection prevention connector of PLC cpu

Abstract

The utility model relates to a PLC cpu power line anti-misconnection joint, which comprises a socket and a joint, two side blocks are arranged on the outer surfaces of the two sides of the socket, and insertion rods are arranged on the upper surfaces of the side blocks; the outer surfaces of the two sides of the connector are each provided with two sleeves, the diameter of the inserting rod is matched with the inner diameter of each sleeve, a spring is arranged in each sleeve, and the bottom of each spring is connected with a push block. A clamping block is installed on the outer surface of the socket, and a buckle is installed on the outer surface of the connector. The connector is connected with the socket, the buckle and the clamping block are used for clamping, the inserting rod is inserted into the sleeve and compresses the spring at the moment, when the connector needs to be pulled out, clamping of the buckle to the clamping block only needs to be removed, the compressed spring releases elastic force at the moment, thrust far away from the inserting rod is applied to the sleeve, and the connector can be pulled out. Therefore, the connector and the socket can be separated only by using a small force, the pulling-out difficulty is reduced, and the risk of damage to the socket and the CPU is reduced.

Description

Technical Field

[0001] This utility model relates to the field of power cord connector technology, specifically a power cord connector for PLC CPUs to prevent misconnection. Background Technology

[0002] In the field of industrial automation, the PLC (Programmable Logic Controller) is a core hardware component, and its stability and reliability are of paramount importance. The CPU, as the brain of the PLC, is responsible for processing various instructions and data, and the correctness of its power supply wiring directly affects the normal operation and safety of the PLC.

[0003] When the power cord socket on the PLC CPU is plugged in, there is a certain amount of friction between the two. Especially after a period of use, the roughness of the contact surface may increase due to wear, aging, or corrosion, which may require more force to pull out the connector and also increase the risk of damage to the socket and CPU. Summary of the Invention

[0004] The purpose of this invention is to provide a PLC CPU power cord anti-misconnection connector, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A PLC CPU power cord anti-misconnection connector includes a socket and a connector. Two side blocks are mounted on both outer surfaces of the socket, and a plug rod is mounted on the upper surface of each side block. Two sleeves are mounted on both outer surfaces of the connector. The diameter of the plug rod matches the inner diameter of the sleeve. A spring is installed inside the sleeve, and a push block is connected to the bottom of the spring. A locking block is mounted on the outer surface of the socket, and a snap-fit ​​is mounted on the outer surface of the connector.

[0007] Furthermore, a screw is rotatably mounted through the top of the sleeve, a pressure block is mounted on the outer surface of the screw, the upper end of the spring is connected to the pressure block, and limit grooves are opened on both sides of the inner wall of the sleeve in the vertical direction. First limit blocks are installed on both sides of the outer surface of the pressure block, and the first limit blocks are set in the limit grooves.

[0008] Furthermore, a stop is installed at the bottom of the screw, and the diameter of the stop is smaller than the inner diameter of the spring.

[0009] Furthermore, a second limiting block is installed on both outer surfaces of the push block, and the second limiting block is set in the limiting groove.

[0010] Furthermore, a knob is installed on the top of the screw.

[0011] Furthermore, the outer surface of the buckle is provided with anti-slip texture, and the direction of the anti-slip texture is perpendicular to the insertion and removal direction of the connector.

[0012] Furthermore, the spacing between the two plugs on both sides of the socket is not equal, and the positions of the four sleeves correspond to this.

[0013] Furthermore, the spring is made of stainless steel.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0015] 1. This utility model connects the connector to the socket and uses a buckle and a locking block for engagement. At this time, the plug is inserted into the sleeve and compresses the spring. When it is necessary to pull out the connector, simply release the buckle from the locking block. At this time, the compressed spring releases its elasticity and applies a pushing force away from the plug to the sleeve. Therefore, only a small force is needed to separate the connector from the socket, reducing the difficulty of pulling out and reducing the risk of damage to the socket and CPU.

[0016] 2. By turning the screw, the pressure block is limited by the limiting groove and the first limiting block, so the pressure block can be driven to rise and fall vertically under the action of the threaded connection. The compression of the spring can be adjusted, so that the elastic force can be increased by adjusting the compression of the spring according to the frictional resistance between the connector and the socket, ensuring that the connector can be easily pulled out of the socket. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connector structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the socket structure in this utility model;

[0020] Figure 4 This is a top view of the socket structure in this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the sleeve in this utility model;

[0022] Figure 6 This is a schematic diagram of the first limiting block in this utility model.

[0023] In the diagram: 100, socket; 101, connector; 102, side block; 103, plug; 104, sleeve; 105, spring; 106, push block; 107, locking block; 108, buckle; 200, screw; 201, pressure block; 202, limiting groove; 203, first limiting block; 300, stop block; 400, second limiting block; 500, knob. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0026] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0027] Please see Figures 1-6 This utility model provides a PLC CPU power cord anti-misconnection connector, including a socket 100 and a connector 101. Two side blocks 102 are installed on both outer surfaces of the socket 100, and a plug rod 103 is installed on the upper surface of each side block 102. Two sleeves 104 are installed on both outer surfaces of the connector 101. The diameter of the plug rod 103 matches the inner diameter of the sleeve 104. A spring 105 is installed inside the sleeve 104, and a push block 106 is connected to the bottom of the spring 105. A locking block 107 is installed on the outer surface of the socket 100, and a latch 108 is installed on the outer surface of the connector 101.

[0028] In use, the connector 101 is inserted into the socket 100, and the plug rod 103 is inserted into the sleeve 104. The plug rod 103 pushes the push block 106 upward and compresses the spring 105. The connector 101 is fixed to the socket 100 by the snap-fit ​​action of the buckle 108 and the snap-fit ​​block 107 to prevent it from coming loose. At this time, the spring 105 is in a compressed and stored state. When it is necessary to pull out the connector 101, simply release the snap-fit ​​action of the buckle 108 on the snap-fit ​​block 107. At this time, the compressed spring 105 releases its elasticity and applies a pushing force away from the plug rod 103 to the sleeve 104. Therefore, only a small force is needed to separate the connector 101 from the socket 100, reducing the difficulty of pulling it out and reducing the risk of damage to the socket 100 and the CPU.

[0029] Preferably, a screw 200 is rotatably mounted through the top of the sleeve 104, a pressure block 201 is mounted on the outer surface of the screw 200, the upper end of the spring 105 is connected to the pressure block 201, and limit grooves 202 are opened on both sides of the inner wall of the sleeve 104 in the vertical direction. A first limit block 203 is mounted on both sides of the outer surface of the pressure block 201, and the first limit block 203 is disposed in the limit groove 202.

[0030] By turning the screw 200, the pressure block 201 is limited by the limiting groove 202 and the first limiting block 203. Therefore, under the action of the threaded connection, the pressure block 201 can be driven to rise and fall vertically, and the compression of the spring 105 can be adjusted. Thus, according to the frictional resistance between the connector 101 and the socket 100, the spring force can be increased by adjusting the compression of the spring 105, ensuring that the connector 101 can be easily pulled out of the socket 100.

[0031] Preferably, a stop 300 is installed at the bottom of the screw 200, and the diameter of the stop 300 is smaller than the inner diameter of the spring 105.

[0032] By setting the stop 300, the descent height of the pressure block 201 can be limited to prevent it from detaching from the screw 200 and affecting normal use.

[0033] Preferably, a second limiting block 400 is installed on both outer surfaces of the push block 106, and the second limiting block 400 is disposed in the limiting groove 202.

[0034] By setting the second limiting block 400, the push block 106 can be limited to prevent it from coming out of the sleeve 104, thus improving the performance.

[0035] Preferably, a knob 500 is mounted on the top of the screw 200.

[0036] The knob 500 makes it easy to rotate the screw 200, reducing the chance of slipping.

[0037] Preferably, the outer surface of the buckle 108 is provided with anti-slip texture, and the direction of the anti-slip texture is perpendicular to the insertion and removal direction of the connector 101.

[0038] When removing connector 101 from socket 100, first press buckle 108 to release it from engagement with block 107, then pull connector 101 upwards. Due to the anti-slip texture, the friction between buckle 108 and fingers is increased, thus reducing the chance of slipping.

[0039] Preferably, the spacing between the two plugs 103 on both sides of the socket 100 is not equal, and the positions of the four sleeves 104 are distributed accordingly.

[0040] By determining the positional relationship of the four prongs 103, it can be ensured that the connector 101 can only be inserted into the socket 100 in the specified direction, thereby preventing misconnection.

[0041] Preferably, the spring 105 is made of stainless steel.

[0042] Stainless steel has excellent corrosion resistance, reducing the likelihood of rusting and ensuring stability during long-term use.

[0043] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A power cord anti-misconnection connector for a PLC CPU, comprising a socket (100) and a connector (101), characterized in that: Two side blocks (102) are installed on both outer surfaces of the socket (100), and a plug rod (103) is installed on the upper surface of the side block (102); Two sleeves (104) are installed on both outer surfaces of the connector (101). The diameter of the insertion rod (103) is adapted to the inner diameter of the sleeve (104). A spring (105) is provided inside the sleeve (104). A push block (106) is connected to the bottom of the spring (105). The outer surface of the socket (100) is fitted with a locking block (107), and the outer surface of the connector (101) is fitted with a buckle (108).

2. The PLC CPU power cord anti-misconnection connector according to claim 1, characterized in that: A screw (200) is rotatably mounted through the top of the sleeve (104). A pressure block (201) is mounted on the outer surface of the screw (200). The upper end of the spring (105) is connected to the pressure block (201). Limiting grooves (202) are opened vertically on both sides of the inner wall of the sleeve (104). First limiting blocks (203) are mounted on both sides of the outer surface of the pressure block (201). The first limiting blocks (203) are disposed in the limiting grooves (202).

3. The PLC CPU power cord anti-misconnection connector according to claim 2, characterized in that: A stop (300) is installed at the bottom of the screw (200), and the diameter of the stop (300) is smaller than the inner diameter of the spring (105).

4. A PLC CPU power cord anti-misconnection connector according to claim 2, characterized in that: The push block (106) has a second limiting block (400) installed on both outer surfaces, and the second limiting block (400) is disposed in the limiting groove (202).

5. A PLC CPU power cord anti-misconnection connector according to claim 2, characterized in that: A knob (500) is mounted on the top of the screw (200).

6. The PLC CPU power cord anti-misconnection connector according to claim 1, characterized in that: The outer surface of the buckle (108) is provided with anti-slip texture, and the direction of the anti-slip texture is perpendicular to the insertion and removal direction of the connector (101).

7. A PLC CPU power cord anti-misconnection connector according to claim 1, characterized in that: The spacing between the two plugs (103) on both sides of the socket (100) is not equal, and the positions of the four sleeves (104) are distributed accordingly.

8. A PLC CPU power cord anti-misconnection connector according to claim 1, characterized in that: The spring (105) is made of stainless steel.

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