Mounting structure and PLC controller

Abstract

The utility model discloses an installation structure and PLC controller, wherein an installation structure includes: installation box, a plurality of threading hole and joint mechanism. The side opening of installation box is rotationally provided with the cover. The joint mechanism is installed in the installation box, and the joint mechanism comprises: a backplate, a pair of slide rails, a mounting plate, a plurality of elastic limit components and a control board. The backplate is fixed to the inner wall of the installation box. The pair of slide rails are both fixed to the backplate. The same end of the pair of slide rails is both drilled with an insertion slot. The mounting plate is fixed with a pair of sliding blocks on the side close to the slide rails. The pair of sliding blocks are respectively slid in the pair of slide rails. The locking slide rail is fixed to the backplate and is arranged between the pair of slide rails. The plurality of elastic limit components are all installed in the locking slide rail. The mounting plate is fixed with a limit plate. The limit plate is slid in the locking slide rail. The utility model is designed through the coherent structure, which facilitates the disassembly of the PLC controller in the later period, and effectively improves the efficiency of the later maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of PLC controller technology, specifically relating to an installation structure and a PLC controller. Background Technology

[0002] PLC controllers mainly refer to programmable logic controllers, which are digital computing and operating electronic systems used to control the production process of machinery. Because they can be programmed to automatically control equipment operation, they are widely used in automated production equipment.

[0003] The current method of installing PLC controllers in electrical control cabinets is generally to fix the PLC controller to the cabinet with screws. Since PLC controllers are usually made of plastic insulating material, tightening the screws will cause pressure on the surface, and over time, this will cause the screws to break. This screw connection method also requires tools to remove the screws when installing or replacing the PLC controller, which is time-consuming, labor-intensive, and inefficient.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide an installation structure and a PLC controller.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide an installation structure and a PLC controller that can solve the problem that the existing PLC controller installation structure is inconvenient for later disassembly, assembly and maintenance.

[0007] To achieve the above objectives, a specific embodiment of this utility model is provided.

[0008] An installation structure includes: a mounting box, multiple wire holes, and a snap-fit ​​mechanism.

[0009] A cover plate is rotatably installed at one side opening of the mounting box. Multiple wire-passing holes are all carved into the bottom wall of the mounting box. The locking mechanism is installed inside the mounting box and includes: a back plate, a pair of slide rails, a mounting plate, a locking slide rail, multiple elastic limiting members, and a control plate. The back plate is fixed to the inner wall of the mounting box. Both slide rails are fixed to the back plate, and each slide rail has an insertion groove carved at the same end. A pair of sliders are fixed to the side of the mounting plate near the slide rails, and the pair of sliders slide within the pair of slide rails. The locking slide rail is fixed to the back plate and positioned between the pair of slide rails. Multiple elastic limiting members are installed within the locking slide rail. A limiting plate is fixed to the mounting plate and slides within the locking slide rail, with a first rounded corner at its corner furthest from the insertion groove. The control plate is slidably installed in the back plate and connected to one end of the elastic limiting member located within the back plate. Both ends of the control board are rotatably equipped with screws. One end of the screw is located outside the back plate, and the back plate is provided with a threaded sleeve that is threadedly connected to the screw.

[0010] In one or more embodiments of this utility model, heat dissipation holes are drilled on both side walls of the mounting box for heat dissipation.

[0011] In one or more embodiments of this utility model, a circular arc clamp is provided in each of the plurality of threading holes. One side of the circular arc clamp has a notch, and a first limiting head is fixed to one end of the circular arc clamp located inside the mounting box. After the wire harness is threaded through the threading hole into the mounting box, the circular arc clamp is secured onto the wire harness and in the threading hole, thus clamping the wire harness tightly and preventing it from loosening due to external pulling. The first limiting head is used to pry the circular arc clamp out of the threading hole and also limits its movement, preventing it from moving downwards within the threading hole.

[0012] In one or more embodiments of this utility model, a nut head is fixed at each of the multiple wire-passing holes on the bottom of the mounting box, and the bottom of the arc-shaped clamp is threadedly connected to the nut head. By rotating the arc-shaped clamp to thread its bottom onto the nut head, movement of the arc-shaped clamp is prevented, thereby further increasing the stability of the wire harness connection.

[0013] In one or more embodiments of this utility model, a protective rubber sleeve is fixed on the inner wall of the arc clamp. The protective rubber sleeve serves to prevent slippage between the wire harness and the arc clamp.

[0014] In one or more embodiments of this utility model, the elastic limiting member includes: a second limiting head, a sliding rod, and a spring. The second limiting head slides back and forth in the locking slide rail, and its side corner near the mounting plate is provided with a second rounded corner. The sliding rod is fixed to the second limiting head, and a fixing head is fixed to one end of the sliding rod that passes through the control plate. The spring is mounted on the sliding rod and is located between the second limiting head and the control plate. When the mounting plate is slidably installed on a pair of slide rails, the mounting plate also drives the limiting plate to slide in the locking slide rail. When the limiting plate is inserted into the locking slide rail, it pushes the second limiting head towards the control plate. When the mounting plate drives the locking slide rail to slide away from the insertion slot, the locking slide rail pushes the second limiting head in front towards the control plate through the first arc angle and the second arc angle on the second limiting head. When the limiting plate moves away from the second limiting head, the spring force pushes the second limiting head back, so that the second limiting head is locked on the side of the limiting plate away from the first arc angle. Thus, the second limiting head locks the limiting plate, thereby locking the mounting plate and preventing the mounting plate from moving back.

[0015] In one or more embodiments of this utility model, the control plate has multiple grooves on the side away from the second limiting head, and the fixing head is disposed in the grooves. The grooves are used to house the fixing head, thereby reducing the space occupied by the fixing head on the inner side of the control plate.

[0016] In one or more embodiments of this utility model, a rotating head is fixed to one end of the screw located inside the control plate, and a knob head is fixed to the other end of the screw located outside the back plate. The screw is rotatably connected to the control plate via the rotating head, and the rotating head drives the control plate to move. The knob head is used to drive the screw to rotate.

[0017] In one or more embodiments of this utility model, multiple mounting ears are fixed on both sides of the back plate, and the back plate is fixed in the mounting box by the multiple mounting ears.

[0018] A PLC controller, including a mounting structure.

[0019] Compared with the prior art, this utility model, through its related structural design, facilitates the disassembly and assembly of the PLC controller in the later stages, effectively improving the efficiency of later maintenance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of an installation structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the mounting box in one embodiment of the present invention; Figure 3 for Figure 2 The structural diagram shown at point A in the middle; Figure 4 This is a schematic diagram of the snap-fit ​​mechanism in one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the elastic limiting member and the control plate in one embodiment of the present invention; Figure 6 for Figure 5 The structural diagram shown at point B in the middle; Figure 7 This is a schematic diagram of the mounting plate in one embodiment of the present invention.

[0022] Explanation of key figure labels: 1-Mounting box, 101-Cover plate, 102-Heat dissipation hole, 103-Wire hole, 104-Nut head, 105-Arc clamp, 106-Protective rubber sleeve, 107-Limit head, 2-Snap-fit ​​mechanism, 201-Back plate, 202-Slide rail, 203-Insert slot, 204-Mounting plate, 205-Slider, 206-Locking slide rail, 207-Control plate, 208-Elastic limit component, 209-Limit head, 210-Slide rod, 211-Fixing head, 212-Groove, 213-Spring, 214-Limit plate, 215-First arc angle, 216-Screw, 217-Threaded sleeve, 218-Knob head, 219-Rotating head, 220-Mounting ear plate, 221-Second arc angle. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0024] like Figure 1-7 As shown, an installation structure in one embodiment of the present invention includes: an installation box 1, multiple wire holes 103, and a snap-fit ​​mechanism 2.

[0025] like Figure 1-7As shown, a cover plate 101 is rotatably installed at one side opening of the mounting box 1. Multiple wire-passing holes 103 are all carved into the bottom wall of the mounting box 1. A locking mechanism 2 is installed inside the mounting box 1. The locking mechanism 2 includes: a back plate 201, a pair of slide rails 202, a mounting plate 204, a locking slide rail 206, multiple elastic limiting elements 208, and a control plate 207. The back plate 201 is fixed to the inner wall of the mounting box 1. Both slide rails 202 are fixed to the back plate 201. An insertion groove 203 is carved into the same end of each slide rail 202. A pair of sliders 205 are fixed to the side of the mounting plate 204 near the slide rails 202. The pair of sliders 205 slide on one of the slide rails 202 respectively. In the slide rail 202, the locking slide rail 206 is fixed to the back plate 201 and is located between a pair of slide rails 202. Multiple elastic limiting members 208 are installed in the locking slide rail 206. A limiting plate 214 is fixed on the mounting plate 204. The limiting plate 214 slides in the locking slide rail 206, and a first arc angle 215 is provided at the corner away from the insertion slot 203. The control plate 207 is slidably installed in the back plate 201 and is connected to one end of the elastic limiting member 208 located in the back plate 201. Both ends of the control plate 207 are rotatably provided with screws 216. One end of the screw 216 is located outside the back plate 201, and the back plate 201 is provided with a threaded sleeve 217 that is threadedly connected to the screw 216.

[0026] During installation, first, fix the PLC controller to the mounting plate 204 with bolts. Then, align the slider 205 on the back of the mounting plate 204 with the insertion slot 203 and insert it into the insertion slot 203. Simultaneously, as the slider 205 inserts into the insertion slot 203, the mounting plate 204 also moves the limiting plate 214 into the locking slide rail 206, pushing the elastic limiting member 208 located at the bottom of the limiting plate 214 towards the control plate 207. Then, slide the mounting plate 204 towards the end of the slide rail 202 away from the insertion slot 203, until it reaches the end of the slide rail 202. During sliding, the mounting plate 204 drives the slider 205 to slide into the slide rail 202. The slider 205, positioned within the slide rail 202, prevents the mounting plate 204 from moving forward or backward. Simultaneously, as the mounting plate 204 moves the limiting plate 214, the limiting plate 214, through the first arc angle 215, continues to push the elastic limiting member 208 towards the control plate 207. When the limiting plate 214 moves away from the elastic limiting member 208, the elastic limiting member 208 rebounds and locks onto the side wall of the limiting plate 214 away from the first arc angle 215. When the mounting plate 204 slides to the end of the slide rail 202, the elastic limiting member 208 locks the limiting plate 214 in place, thus locking the mounting plate 204. This prevents the mounting plate 204 from moving forward or backward, as well as left or right, thereby securing the PLC controller into the mounting box 1. Other PLC controllers can then be installed sequentially.

[0027] The connecting wires are then threaded through the wire hole 103 into the mounting box 1 and connected to the PLC controller. When the PLC controller needs to be disassembled, first, a pair of screws 216 are rotated. Simultaneously, the screws 216 rotate, causing the control board 207 to move in the opposite direction to the elastic limit member 208, and also causing the elastic limit member 208 to move. The control board 207 moves all the elastic limit members 208 away from one side of the limit plate 214. Then, the mounting plate 204 can be slid towards the insertion slot 203. When the slider 205 slides into the insertion slot 203, the PLC controller can be removed from the mounting box 1. After the PLC controller is removed, the pair of screws 216 are rotated in the opposite direction, causing the screws 216 to move the control board 207 towards the elastic limit member 208, and then the elastic limit member 208 is moved back to its original position.

[0028] like Figure 1-7 As shown, heat dissipation holes 102 are drilled on both side walls of the mounting box 1 for heat dissipation. Multiple wire-passing holes 103 are fitted with arc-shaped clamps 105, each with a notch on one side. A first limiting head 107 is fixed to one end of the arc-shaped clamp 105 inside the mounting box 1. After the wire harness is passed through the wire-passing hole 103 into the mounting box 1, the arc-shaped clamp 105 is clamped onto the wire harness and secured in the wire-passing hole 103, thus clamping the wire harness and preventing it from loosening due to external pulling. The first limiting head 107 is used to remove the arc-shaped clamp 105 from the wire-passing hole 103 and also limits its downward movement within the wire-passing hole 103.

[0029] like Figure 1-7 As shown, the bottom of the mounting box 1 has multiple wire-passing holes 103, each fixed with a nut head 104. The bottom of the arc-shaped clamp 105 is threadedly connected to the nut head 104. By rotating the arc-shaped clamp 105 to connect its bottom threaded connection to the nut head 104, movement of the arc-shaped clamp 105 is prevented, thereby further increasing the stability of the wire harness connection. A protective rubber sleeve 106 is fixed on the inner wall of the arc-shaped clamp 105. The protective rubber sleeve 106 serves as an anti-slip element, preventing slippage between the wire harness and the arc-shaped clamp 105.

[0030] like Figure 1-7As shown, the elastic limiting member 208 includes a second limiting head 209, a slide rod 210, and a spring 213. The second limiting head 209 slides back and forth in the locking slide rail 206, and a second rounded corner 221 is provided on one side near the mounting plate 204. The slide rod 210 is fixed to the second limiting head 209, and a fixing head 211 is fixed to one end of the slide rod 210 that passes through the control plate 207. The spring 213 is mounted on the slide rod 210 and is located between the second limiting head 209 and the control plate 207. When the mounting plate 204 is slidably mounted on a pair of slide rails 202, the mounting plate 204 also simultaneously drives the limiting plate 214 to slide in the locking slide rail 206. When the limiting plate 214 is inserted into the locking slide rail 206, it pushes the second limiting head 209 toward the control plate 207. When the mounting plate 204 drives the locking slide rail 206 to slide away from the insertion slot 203, the locking slide rail 206 passes through the first arc angle 215 and the second limiting head 209. The second arc angle 221 pushes the second limiting head 209 in front toward the control plate 207. When the limiting plate 214 moves away from the second limiting head 209, the elastic force of the spring 213 pushes the second limiting head 209 back, so that the second limiting head 209 is stuck on the side of the limiting plate 214 away from the first arc angle 215. Thus, the second limiting head 209 locks the limiting plate 214, thereby locking the mounting plate 204 and preventing the mounting plate 204 from moving back.

[0031] like Figure 1-7 As shown, multiple grooves 212 are carved on the side of the control plate 207 away from the second limiting head 209, and the fixing head 211 is disposed in the grooves 212. The grooves 212 are used to fix the fixing head 211, thereby reducing the space occupied by the fixing head 211 on the north side of the control plate 207. A rotating head 219 is fixed to one end of the screw 216 inside the control plate 207, and a knob head 218 is fixed to the other end of the screw 216 outside the back plate 201. The screw 216 is rotated between the control plate 207 and the rotating head 219, and the rotating head 219 drives the control plate 207 to move. The knob head 218 is used to drive the screw 216 to rotate. Multiple mounting ears 220 are fixed on both sides of the back plate 201, and the back plate 201 is fixed in the mounting box 1 by the multiple mounting ears 220.

[0032] This utility model also discloses a PLC controller, including an installation structure.

[0033] Working principle: During installation, first, the PLC controller is fixed to the mounting plate 204 with bolts. Then, the slider 205 on the back of the mounting plate 204 is aligned with the insertion slot 203 and inserted into the insertion slot 203. Simultaneously, the mounting plate 204 drives the limiting plate 214 to insert into the locking slide rail 206, and pushes the second limiting head 209 located at the bottom of the limiting plate 214 towards the control plate 207. Then, the mounting plate 204 is slid towards the end of the slide rail 202 away from the insertion slot 203, until it reaches the end of the slide rail 202. During sliding, the mounting plate 204 drives the slider 205 to slide into the slide rail 202. The slider 205, positioned within the slide rail 202, prevents the mounting plate 204 from moving forward or backward. Simultaneously, as the mounting plate 204 moves the limiting plate 214, the limiting plate 214, through the first arc angle 215, continues to push the second limiting head 209 towards the control plate 207. When the limiting plate 214 moves away from the second limiting head 209, the second limiting head 209 rebounds under the push of the spring 213 and locks onto the side wall of the limiting plate 214 away from the first arc angle 215. When the mounting plate 204 slides to the end of the slide rail 202, the second limiting head 209 locks the limiting plate 214 in place, thus locking the mounting plate 204 in place. This prevents the mounting plate 204 from moving forward or backward, as well as left or right, thereby securing the PLC controller into the mounting box 1. Other PLC controllers can then be installed sequentially.

[0034] Then, thread the connected wire harness through the wire hole 103 into the mounting box 1 and connect it to the PLC controller. Then, clamp the arc clamp 105 onto the wire harness, insert the arc clamp 105 into the wire hole 103, and screw the bottom thread of the arc clamp 105 onto the nut head 104 to fix the arc clamp 105 in place.

[0035] When the PLC controller needs to be disassembled, first rotate a pair of screws 216 using a pair of knobs 218. Simultaneously, the screws 216 move the control board 207 in the opposite direction to the second limit head 209, and the slide bar 210 moves the second limit head 209. The control board 207 moves all the second limit heads 209 away from one side of the limit plate 214. Then, the mounting plate 204 can be slid towards the insertion slot 203. When the slider 205 reaches the insertion slot 203, the PLC controller can be removed from the mounting box 1. After removing the PLC controller, rotate the pair of knobs 218 in the opposite direction, causing the screws 216 to move the control board 207 towards the second limit head 209, and then move the second limit head 209 back to its original position.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An installation structure, characterized in that, include: The mounting box has a cover plate that is rotatably installed at one side opening; Multiple wire holes are drilled in the bottom wall of the mounting box; and A snap-fit ​​mechanism, installed inside a mounting box, includes: a back plate, a pair of slide rails, a mounting plate, a locking slide rail, multiple elastic limiting components, and a control plate. The back plate is fixed to the inner wall of the mounting box. Both slide rails are fixed to the back plate, and an insertion groove is cut at the same end of each slide rail. A pair of sliders are fixed to the side of the mounting plate near the slide rails, and the pair of sliders slide in the slide rails respectively. The locking slide rail is fixed to the back plate and located between the slide rails. Multiple elastic limiting components are installed in the locking slide rails. A limiting plate is fixed to the mounting plate and slides in the locking slide rails. A first arc angle is provided at the corner away from the insertion groove. The control plate is slidably installed in the back plate and connected to one end of the elastic limiting component located inside the back plate. Both ends of the control plate are rotatably provided with screws. One end of the screw is located outside the back plate, and a threaded sleeve that is threadedly connected to the screw is provided on the back plate.

2. The installation structure according to claim 1, characterized in that, The mounting box has heat dissipation holes drilled on both sides of its side walls.

3. The installation structure according to claim 1, characterized in that, Each of the multiple threading holes is fitted with an arc-shaped clamp, one side of which has a notch, and one end of the arc-shaped clamp located inside the mounting box is fixed with a first limiting head.

4. The installation structure according to claim 3, characterized in that, The bottom of the mounting box has multiple wire holes, each with a nut head fixed thereon, and the bottom of the arc clamp is threadedly connected to the nut head.

5. The installation structure according to claim 4, characterized in that, A protective rubber sleeve is fixed to the inner wall of the arc-shaped clamp.

6. The installation structure according to claim 1, characterized in that, The elastic limiting member includes: The second limiting head slides back and forth in the locking slide rail, and its side corner near the mounting plate is provided with a second rounded corner; The slide bar is fixed to the second limit head, and a fixing head is fixed to one end of it that passes through the control panel; and A spring is mounted on the slide rod and positioned between the second limit head and the control plate.

7. The installation structure according to claim 6, characterized in that, The control plate has multiple grooves on the side away from the second limiting head, and the fixing head is located in the grooves.

8. The installation structure according to claim 1, characterized in that, The screw has a rotating head fixed at one end inside the control panel and a knob head fixed at the other end outside the back plate.

9. The installation structure according to claim 1, characterized in that, Multiple mounting ears are fixed on both sides of the back plate.

10. A PLC controller, characterized in that, Including an installation structure as described in any one of claims 1-9.

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