Wire pressing cover locking structure for independent controller

Abstract

The utility model discloses a wire pressing cover locking structure for an independent controller, which comprises a base plate and a lower wire pressing plate fixed at the bottom of the base plate, a plurality of trapezoidal through holes which are horizontally distributed at equal intervals are arranged in the lower wire pressing plate, and connecting seats are fixed on the outer walls of the two sides of the base plate. A rectangular hollow shell is fixed to the outer wall of the side, away from the chassis, of the connecting base, a connecting plate is mounted on the outer wall of one side of the rectangular hollow shell, and a right-angle sliding cover is slidably mounted in the rectangular hollow shell. According to the utility model, stable acting force can be provided, proper pressing force is ensured to be applied to the cable, the spring tensioning structure is built in the rectangular hollow shell, the replacement of the spring tensioning structure is relatively simple, only an original spring needs to be disassembled and a new spring needs to be installed, adjustment can be carried out by replacing springs with different specifications or elastic coefficients, and the operation is simple and convenient. This makes the installation and maintenance process more convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of controller wiring, in particular to a wire pressing cover locking structure for an independent controller. Background Art

[0002] A standalone PLC is a PLC system that is independent of the numerical control device, has independent software and hardware functions, and can independently complete the specified control tasks. The wire cover used for the standalone controller is a device used to protect the connection point of the wire, usually made of plastic or metal materials. The wire cover usually consists of two or more parts. Each part has an opening for inserting the wire. The shape and size of the opening match the diameter of the wire. There is usually a threaded or snap-on structure between the parts to connect them together. The top of the wire crimping cover usually has one or more holes for fixing and installing. For example, a wire crimping cover for an independent controller disclosed in the authorization announcement number CN216794494U includes a wire crimping cover body, a plurality of wire outlet holes are opened on the side of the wire crimping cover body, a fixing block is arranged on one side of the wire crimping cover body, two pressing plates are slidably installed on the side of the fixing block, and a plurality of wire crimping grooves are opened on the sides of the two pressing plates close to each other, and the wire crimping grooves correspond to the positions of the wire outlet holes. The two pressing plates are inserted from the side, and then the wire is placed in the wire crimping groove. The fixing block can be pushed to make the two pressing plates close to each other, so that the wire is clamped by the two pressing plates. The wire pressing groove on the pressure plate is limited, and the two pressure plates move at the same time so that the T-shaped block enters the T-shaped groove on the two sliding rods, thereby forming a fixation. However, this technical solution mainly utilizes the force of the torsion spring to rotate the rotating disk, and finally makes the pressure plate close and compress the cable. In this process, the force of the disc-shaped torsion spring is limited by its own elastic characteristics. Once the elasticity of the torsion spring fails or is damaged, it will not be able to provide sufficient force to compress the cable, resulting in a loose connection. In addition, the force of the disc-shaped torsion spring will weaken with the increase of time and frequency of use. When the disc-shaped torsion spring fails in the later period, it is also quite difficult to maintain it again, which makes it difficult for the wire pressing cover to compress the cable. Utility Model Content

[0003] The utility model aims to provide a wire-crimping cover locking structure for an independent controller to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking structure for a wire pressing cover for an independent controller, comprising a chassis and a lower wire pressing plate fixed to the bottom of the chassis, the lower wire pressing plate is provided with a plurality of trapezoidal through holes equidistantly distributed horizontally inside, connecting seats are fixed on both sides of the outer wall of the chassis, a rectangular hollow shell is fixed on the outer wall of the connecting seat on the side away from the chassis, a connecting plate is installed on the outer wall of one side of the rectangular hollow shell, a right-angle sliding cover is slidably installed inside the rectangular hollow shell, and the rectangular hollow shell is provided with a right-angle sliding cover. A right-angle arm is slidably installed on the outer wall of one side of the empty shell close to the connecting seat, an upper wire pressing cover is fixed on the outer wall of the right-angle arm close to the center line of the chassis, a T-shaped connector for connecting to the inner wall of the right-angle sliding cover is installed on the outer wall of the other side of the right-angle arm, a spring tensioning structure is arranged inside the rectangular hollow shell, the top end of the spring tensioning structure and the bottom end of the T-shaped connector are detachably connected, a hollow shaft frame is installed at the bottom end of the chassis, and a rotary lifting structure for pushing the right-angle arm upward is arranged inside the hollow shaft frame.

[0005] Preferably, the rotary lifting structure is a long shaft rotatably mounted inside a hollow shaft frame, and tongue plates mounted at both ends of the long shaft surface, and both ends of the long shaft extend into the interior of a rectangular hollow shell and are equipped with knobs.

[0006] Preferably, a C-shaped guide seat is fixed on the outer wall of one side of the rectangular hollow shell close to the connecting seat, and the right-angle arm is slidably installed in the C-shaped guide seat.

[0007] Preferably, the T-shaped connector includes a protrusion fixed on the outer wall of one side of the right-angle arm, the end of the protrusion away from the right-angle arm is fixedly connected to the inner wall of the right-angle sliding cover, and a rectangular sliding groove for the protrusion to slide in the vertical direction is provided on the inner wall of the rectangular hollow shell, a vertical rod is fixed to the bottom end of the protrusion, and a baffle is threadedly installed on the bottom end of the vertical rod.

[0008] Preferably, the spring tensioning structure is two convex plates installed on the inner wall of one side of the rectangular hollow shell, a circular protrusion is fixed to the top of the convex plate, a coil spring is mounted on the outer peripheral surface of the circular protrusion, and the top of the coil spring is fixedly connected to the bottom end of the baffle.

[0009] Preferably, a trapezoidal pressing block corresponding one-to-one to the trapezoidal through hole is installed at the bottom end of the upper wire pressing cover, and a triangular upper groove is provided at the bottom end of the trapezoidal pressing block.

[0010] Compared with the prior art, the beneficial effects of the utility model are: the wire crimping cover locking structure for an independent controller is provided with a rectangular hollow shell and a spring tensioning structure and other structures that cooperate with each other. The wire crimping cover locking structure is bolted and fixed to the outer wall of the wire input end of the independent controller through a connecting plate, and the signal cable is compressed by the upper wire crimping cover and the lower wire crimping plate. The spring tensioning structures on both sides of the structure can achieve more uniform pressure distribution compared to disc torsion springs, and can provide stable force to ensure that appropriate compression force is applied to the cable. At the same time, the spring tensioning structure is built into the rectangular hollow shell. The replacement of the spring tensioning structure is relatively simple. It only requires removing the original spring and installing a new spring. It can be adjusted by replacing springs of different specifications or elastic coefficients, which makes the installation and maintenance process more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 4 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 5 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] In the figure: 1, chassis; 2, lower pressure plate; 201, trapezoidal through hole; 3, hollow shaft frame; 301, long shaft; 302, tongue plate; 4, rectangular hollow shell; 401, convex plate; 402, spiral spring; 5, connecting seat; 6, connecting plate; 7, right-angle sliding cover; 8, knob; 9, C-shaped guide seat; 10, right-angle arm; 1001, convex block; 1002, vertical rod; 1003, baffle plate; 11, upper pressure cover; 1101, trapezoidal pressure block; 1102, triangular upper groove. 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. 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 1-5, the utility model provides an embodiment: a wire pressing cover locking structure for an independent controller, comprising a chassis 1 and a lower wire pressing plate 2 fixed to the bottom of the chassis 1, a plurality of trapezoidal through holes 201 horizontally equidistantly distributed are arranged inside the lower wire pressing plate 2, connecting seats 5 are fixed on both sides of the outer wall of the chassis 1, a rectangular hollow shell 4 is fixed on the outer wall of the connecting seat 5 away from the chassis 1, a connecting plate 6 is installed on the outer wall of one side of the rectangular hollow shell 4, and the wire pressing cover locking structure is bolted and fixed to the outer wall of the inlet end of the independent controller through the connecting plate 6;

[0019] A right-angle sliding cover 7 is slidably installed inside the rectangular hollow shell 4, a right-angle arm 10 is slidably installed on the outer wall of one side of the rectangular hollow shell 4 close to the connecting seat 5, an upper wire pressing cover 11 is fixed on the outer wall of the right-angle arm 10 close to the center line of the chassis 1, a trapezoidal pressing block 1101 corresponding to the trapezoidal through hole 201 is installed at the bottom end of the upper wire pressing cover 11, and a triangular upper groove 1102 is provided at the bottom end of the trapezoidal pressing block 1101. The trapezoidal pressing block 1101 improves the compression stability of the cable in the trapezoidal through hole 201, and the setting of the triangular upper groove 1102 enables the trapezoidal pressing block 1101 and the lower wire pressing plate 2 to compress signal cables of different wire diameters, thereby achieving more uniform pressure distribution;

[0020] The signal cables of the independent controller pass through the trapezoidal through holes 201, and the signal cables are compressed by the upper wire pressing cover 11 and the lower wire pressing plate 2. The upper wire pressing cover 11 and the lower wire pressing plate 2 can protect the wire connection points, prevent the wires from loosening or falling off, and provide electrical insulation, thereby ensuring the stability and reliability of the wire connection;

[0021] A T-shaped connector for connecting to the inner wall of the right-angle sliding cover 7 is installed on the outer wall of the other side of the right-angle arm 10, a spring tensioning structure is arranged inside the rectangular hollow shell 4, the top of the spring tensioning structure and the bottom of the T-shaped connector are detachably connected, a hollow shaft frame 3 is installed at the bottom end of the chassis 1, and a rotary jacking structure for pushing the right-angle arm 10 upward is arranged inside the hollow shaft frame 3. When the signal cable is compressed, the staff operates the rotary jacking structure through the knob 8, and the rotary jacking structure forces the right-angle arm 10, the upper wire pressing cover 11 and other components to move upward;

[0022] The spring tensioning structure in the rectangular hollow shell 4 is in a stretched state, and then the staff can insert the signal cable from the trapezoidal through hole 201. After the signal cable is inserted, the staff loosens the knob 8, and the spring tensioning structure pulls down the right-angle arm 10 and the upper wire pressing cover 11, so that the trapezoidal pressing block 1101 is pressed into the trapezoidal through hole 201 of the lower wire pressing plate 2, and the purpose of locking the upper wire pressing cover 11 and the lower wire pressing plate 2 is achieved at this time;

[0023] The T-shaped connector includes a protrusion 1001 fixed on the outer wall of one side of the right-angle arm 10, and one end of the protrusion 1001 away from the right-angle arm 10 is fixedly connected to the inner wall of the right-angle sliding cover 7. A rectangular sliding groove for the protrusion 1001 to slide in the vertical direction is provided on the inner wall of the rectangular hollow shell 4. A vertical rod 1002 is fixed to the bottom end of the protrusion 1001, and a baffle 1003 is threadedly installed on the bottom end of the vertical rod 1002.

[0024] A C-shaped guide seat 9 is fixed on the outer wall of one side of the rectangular hollow shell 4 close to the connecting seat 5, and the right-angle arm 10 is slidably installed in the C-shaped guide seat 9, and the lifting stability of the right-angle arm 10 is improved by the C-shaped guide seat 9;

[0025] The spring tensioning structure is two convex plates 401 installed on the inner wall of one side of the rectangular hollow shell 4, the top of the convex plate 401 is fixed with a circular protrusion, the outer peripheral surface of the circular protrusion is sleeved with a coil spring 402, the top of the coil spring 402 is fixedly connected to the bottom end of the baffle 1003, and the design of the coil spring 402 can achieve a more uniform pressure distribution, thereby reducing the local stress concentration on the cable, helping to reduce the risk of cable damage and improving the reliability and safety of the connection;

[0026] The rotary lifting structure is a long shaft 301 rotatably installed inside the hollow shaft frame 3, and a tongue plate 302 installed at both ends of the long shaft 301 surface. Both ends of the long shaft 301 extend to the inside of the rectangular hollow shell 4 and are installed with a knob 8. The staff rotates the long shaft 301 and the tongue plate 302 through the knob 8. When the top of the tongue plate 302 is vertically upward, the tongue plate 302 pushes the right-angle arm 10 and the upper wire pressing cover 11 upward. At this time, the right-angle arm 10 pulls the spiral spring 402 through the protrusion 1001, the vertical rod 1002, and the baffle 1003, that is, the spiral spring 402 is in a stretched state. At this time, the right-angle arm 10 drives the right-angle sliding cover 7 to slide up as a whole through the protrusion 1001. When the staff no longer applies a rotary force to the knob 8, the spiral spring 402 drives the above-mentioned components to reset themselves, so that the upper wire pressing cover 11 is pressed tightly against the top of the lower wire pressing plate 2;

[0027] The coil spring 402 is installed on the top of the convex plate 401. The bottom ends of the coil spring 402 and the baffle 1003 are both provided with cylindrical protrusions. The outer diameter of the cylindrical protrusion is the same as the inner diameter of the coil spring 402. Since the bottom end of the vertical rod 1002 and the top end of the baffle 1003 are threadedly connected, the staff can quickly replace the coil spring 402 through the cylindrical protrusion and the threaded connection, making the installation and maintenance process of the staff more convenient and efficient.

[0028] When the embodiment of the present application is in use, the staff first bolts the wire pressing cover locking structure to the outer wall of the wire inlet end of the independent controller through the connecting plate 6. At this time, the signal cable of the independent controller passes through the trapezoidal through hole 201, and uses the upper wire pressing cover 11 and the lower wire pressing plate 2 to press the signal cable. When the signal cable is pressed, the staff operates the rotary lifting structure through the knob 8, and the rotary lifting structure forces the right-angle arm 10, the upper wire pressing cover 11 and other components to move upward, so that the upper wire pressing cover 11 and the lower wire pressing plate 2 are separated by a certain gap. At this time, the spring tensioning structure in the rectangular hollow shell 4 is in a stretched state, and then the staff inserts the signal cable from the trapezoidal through hole 201. After the signal cable is inserted, the staff When the operator loosens the knob 8, the spring tensioning structure pulls down the right-angle arm 10 and the upper wire pressing cover 11, so that the trapezoidal pressure block 1101 is pressed into the trapezoidal through hole 201 of the lower wire pressing plate 2. At this time, the purpose of locking the upper wire pressing cover 11 and the lower wire pressing plate 2 is achieved. Compared with the single-sided disc torsion spring in the prior art, the spring tensioning structure on both sides of the structure can achieve a more uniform pressure distribution, and can provide a stable force to ensure that the appropriate clamping force is applied to the cable. At the same time, the spring tensioning structure is built into the rectangular hollow shell 4. The replacement of the spring tensioning structure is relatively simple. You only need to remove the original spring and install a new spring. It can be adjusted by replacing springs of different specifications or elastic coefficients, which makes the installation and maintenance process more convenient and efficient. In contrast, disc torsion springs may require more complicated operations and tools.

Claims

1. A wire cover locking structure for an independent controller, characterized in that: The invention comprises a chassis (1) and a lower wire pressing plate (2) fixed at the bottom of the chassis (1), wherein the lower wire pressing plate (2) is provided with a plurality of trapezoidal through holes (201) distributed horizontally and equidistantly, a connecting seat (5) is fixed on both sides of the outer wall of the chassis (1), a rectangular hollow shell (4) is fixed on the outer wall of the connecting seat (5) on the side away from the chassis (1), a connecting plate (6) is installed on the outer wall of one side of the rectangular hollow shell (4), a right-angle sliding cover (7) is slidably installed inside the rectangular hollow shell (4), and a rectangular hollow shell (4) is fixed on the outer wall of the side close to the connecting seat (5). A right-angle arm (10) is slidably mounted, an upper wire pressing cover (11) is fixed on an outer wall of one side of the right-angle arm (10) close to the center line of the chassis (1), a T-shaped connector for connecting with the inner wall of the right-angle sliding cover (7) is mounted on the outer wall of the other side of the right-angle arm (10), a spring tensioning structure is arranged inside the rectangular hollow shell (4), the top end of the spring tensioning structure and the bottom end of the T-shaped connector are detachably connected, a hollow shaft frame (3) is mounted at the bottom end of the chassis (1), and a rotary lifting structure for pushing the right-angle arm (10) upward is arranged inside the hollow shaft frame (3).

2. The wire-crimping cover locking structure for an independent controller according to claim 1, characterized in that: The rotary lifting structure comprises a long shaft (301) rotatably mounted inside a hollow shaft frame (3), and tongue plates (302) mounted at both ends of the surface of the long shaft (301); both ends of the long shaft (301) extend into the interior of a rectangular hollow shell (4) and are mounted with knobs (8).

3. The wire-crimping cover locking structure for an independent controller according to claim 1, characterized in that: A C-shaped guide seat (9) is fixed on the outer wall of one side of the rectangular hollow shell (4) close to the connecting seat (5), and the right-angle arm (10) is slidably installed in the C-shaped guide seat (9).

4. The wire-crimping cover locking structure for an independent controller according to claim 1, characterized in that: The T-shaped connector comprises a protrusion (1001) fixed on the outer wall of one side of the right-angle arm (10); one end of the protrusion (1001) away from the right-angle arm (10) is fixedly connected to the inner wall of the right-angle sliding cover (7); the inner wall of the rectangular hollow shell (4) is provided with a rectangular sliding groove for the protrusion (1001) to slide in the vertical direction; a vertical rod (1002) is fixed to the bottom end of the protrusion (1001); and a baffle (1003) is threadedly mounted on the bottom end of the vertical rod (1002).

5. The locking structure for a wire cover for an independent controller according to claim 4, characterized in that: The spring tensioning structure is two convex plates (401) mounted on the inner wall of one side of the rectangular hollow shell (4), a circular protrusion is fixed on the top of the convex plate (401), a coil spring (402) is sleeved on the outer peripheral surface of the circular protrusion, and the top of the coil spring (402) is fixedly connected to the bottom end of the baffle (1003).

6. The wire-crimping cover locking structure for an independent controller according to claim 1, characterized in that: A trapezoidal pressing block (1101) corresponding one to one with the trapezoidal through hole (201) is installed at the bottom end of the upper wire pressing cover (11), and a triangular upper groove (1102) is provided at the bottom end of the trapezoidal pressing block (1101).

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