A demo box for PLC demonstration device regulation

By introducing adjustment and auxiliary structures into the DEMO box, the problems of fixing and displaying devices of different sizes are solved, enabling multi-directional display and automatic opening and closing of the box lid, thus improving the applicability and convenience of the DEMO box.

CN224538469UActive Publication Date: 2026-07-21成都云黎科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
成都云黎科技有限公司
Filing Date
2025-07-21
Publication Date
2026-07-21

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Abstract

The utility model relates to the field of DEMO box especially relates to a DEMO box for PLC demonstration equipment regulation and control. Including body, the upper surface rotation of box is connected with the box cover, the side rotation of box outer wall is connected with the handle, the inner wall of box is equipped with the adjusting structure, the adjusting structure includes the link chain and the swivel bar, the lower extreme of swivel bar is rotatively connected with the inner wall bottom of box, the circular arc surface fixed connection of swivel bar has the driven gear, the inner wall bottom fixed connection of box has the motor base, the inner wall fixed connection of motor base has the servo motor, the output fixed connection of servo motor has the driving gear, the link chain is engaged with the driving gear, the driven gear, the upper extreme fixed connection of swivel bar has the support disc. The utility model provides a kind of DEMO box for PLC demonstration equipment regulation and control, which can fix different sizes of PLC demonstration equipment in DEMO box, improve the application range of DEMO box;It can show the product from multiple angles, improve the display effect and audience perception, and improve the practicability of DEMO box.
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Description

Technical Field

[0001] This utility model relates to the field of DEMO boxes, and more particularly to a DEMO box for controlling PLC demonstration equipment. Background Technology

[0002] The PLC demonstration device DEMO box is a box structure specifically designed for displaying PLC demonstration devices. The DEMO box is convenient to use.

[0003] Utility model patent CN209746914U discloses a multifunctional demo box. The key technical features are as follows: it includes a lid and a body. The lid houses a touchscreen display. The body has a hollow structure with an internal mounting slot. A display panel is located on the upper part of the mounting slot. A bracket is installed within the mounting slot, and the top of the bracket is fixedly connected to the display panel. The display panel contains a temperature sensor, a PM2.5 concentration detector, a CO2 concentration detector, a core controller, a multifunctional meter, a big data aggregation gateway, a general controller, a switch panel, a network panel, a socket, an SMS alarm module, and a signal indicator module. A start switch is mounted on the switch panel. A router and a power supply module are installed in the middle of the mounting slot, and a wiring control circuit is located at the bottom of the mounting slot.

[0004] Regarding the above-mentioned content, the following technical defects were found:

[0005] 1. Existing DEMO boxes can only accommodate products of a single size. Products of different sizes cannot be stably placed inside the DEMO box, which reduces the applicability of the DEMO box.

[0006] 2. The existing DEMO boxes in the technology showcase cannot display exhibits in a wide range, thus failing to improve the display effect and the audience's viewing experience, which reduces the practicality of the DEMO boxes.

[0007] Therefore, it is necessary to provide a new type of DEMO box for PLC demonstration equipment control to solve the above-mentioned technical problems. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a DEMO box for PLC demonstration equipment control.

[0009] To solve the above technical problems, this utility model provides a DEMO box for PLC demonstration equipment control, comprising: a box body, a box cover rotatably connected to the upper surface of the box body, a handle rotatably connected to one side of the outer wall of the box body, an adjustment structure provided on the inner wall of the box body, the adjustment structure including a rotating rod and a chain, the lower end of the rotating rod being rotatably connected to the bottom of the inner wall of the box body, a driven gear being fixedly connected to the arc surface of the rotating rod, a motor base being fixedly connected to the bottom of the inner wall of the box body, a servo motor being fixedly connected to the inner wall of the motor base, a driving gear being fixedly connected to the output end of the servo motor, the chain meshing with the driving gear and the driven gear, a support plate being fixedly connected to the upper end of the rotating rod, a plurality of sliding holes being opened on the surface of the support plate, a sliding rod being slidably connected to the inner wall of the sliding holes, an adjusting ring being threadedly connected to the arc surface of the sliding rod, and a top rod being fixedly connected to the arc surface of the sliding rod.

[0010] The aforementioned components achieve the following effects: By setting up the adjustment structure, two effects are achieved: First, PLC demonstration devices of different sizes can be fixed inside the DEMO box, increasing the applicability of the DEMO box; Second, products can be displayed from multiple angles, improving the display effect and audience experience, and enhancing the practicality of the DEMO box.

[0011] Preferably, the inner wall of the sliding hole has two positioning holes, and the arc surface of the sliding rod is fixedly connected to two positioning blocks, which are slidably connected to the inner wall of the positioning hole.

[0012] The effect achieved by the above components is that when the slide rod slides along the inner wall of the slide hole, the positioning block fixed on the arc surface of the slide rod will slide along the inner wall of the positioning hole, thereby improving the stability of the slide rod driving the top rod to move.

[0013] Preferably, a limiting post is fixedly connected to the lower surface of the support plate, a positioning post is fixedly connected to the arc surface of the slide rod, and hooks are abutted on the arc surfaces of both the positioning post and the limiting post. An elastic rope is fixedly connected to one end of each hook that is close to the other.

[0014] Preferably, a rubber pad is fixedly connected to the lower surface of the adjusting ring, and the diameter of the rubber pad is larger than the diameter of the adjusting ring.

[0015] The effect achieved by the above components is that the rubber pad can increase the friction of the adjusting ring on the side near the support plate, thereby making the adjusting ring more firmly abut against the support plate.

[0016] Preferably, the outer wall of the adjusting ring is provided with a plurality of anti-slip textures, which are evenly distributed on the outer wall of the adjusting ring.

[0017] The effect achieved by the above components is that personnel can easily control the adjusting ring by rotating it with the help of the anti-slip texture.

[0018] Preferably, the outer wall of the box is provided with an auxiliary structure, the auxiliary structure including a support plate, one side of the support plate being fixedly connected to the box, an electric actuator being fixedly connected to the side of the support plate away from the box, the output end of the electric actuator being fixedly connected to a rotating seat, a support rod being fixedly connected to one side of the outer wall of the box, a turntable being rotatably connected to the end of the support rod away from the box, the axis of rotation of the turntable being coaxial with the axis of rotation of the box cover, a connecting rod being rotatably connected to the centrifugal position of the turntable away from the support rod, one end of the connecting rod being rotatably connected to the inner wall of the rotating seat, a connecting plate being fixedly connected to the side of the turntable away from the connecting rod, and one side of the connecting plate being fixedly connected to one side of the outer wall of the box.

[0019] The effect achieved by the above components is that, by setting up auxiliary structures, the DEMO box can be automatically controlled by personnel to open and close the lid during use, without manual operation. This is suitable for scenarios with high-frequency demonstrations or where items need to be quickly retrieved and placed, thus improving the ease of use of the DEMO box.

[0020] Preferably, the turntable has an arc-shaped hole on its side, and a positioning rod is slidably connected to the inner wall of the arc-shaped hole. One end of the positioning rod is fixedly connected to the arc surface of the support rod.

[0021] The effect achieved by the above components is that when the turntable rotates, the positioning rod fixed on the support rod will slide along the inner wall of the arc-shaped hole. Since the angle of the arc-shaped hole is limited, the angle of the turntable can be limited, and thus the rotation angle of the turntable and the box cover can be limited.

[0022] Compared with related technologies, the DEMO box for PLC demonstration equipment control provided by this utility model has the following beneficial effects:

[0023] By setting up an adjustable structure, two effects are achieved: firstly, PLC demonstration devices of different sizes can be fixed inside the DEMO box, increasing the applicability of the DEMO box; secondly, products can be displayed from multiple angles, improving the display effect and audience experience, and enhancing the practicality of the DEMO box.

[0024] By setting up an auxiliary structure, the DEMO box can be automatically controlled by personnel to open and close the lid during use, without manual operation. This is suitable for scenarios with high-frequency demonstrations or where items need to be quickly retrieved and placed, thus improving the ease of use of the DEMO box. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of a DEMO box for controlling a PLC demonstration device provided by this utility model;

[0026] Figure 2 for Figure 1The diagram shows the structural schematic of the adjustment structure.

[0027] Figure 3 for Figure 1 A partial structural diagram of the adjustment structure is shown;

[0028] Figure 4 for Figure 1 The diagram shows the structure of the auxiliary structure.

[0029] Figure 5 for Figure 1 A partial structural diagram of the auxiliary structure shown.

[0030] The diagram shows the following components: 1. Box body; 2. Box cover; 3. Adjustment structure; 301. Rotating rod; 302. Driven gear; 303. Motor base; 304. Servo motor; 305. Drive gear; 306. Chain; 307. Support plate; 308. Sliding hole; 309. Sliding rod; 310. Adjusting ring; 311. Top rod; 312. Anti-slip texture; 313. Rubber pad; 314. Positioning hole; 315. Positioning block; 316. Positioning post; 317. Limiting post; 318. Hook; 319. Elastic rope; 4. Auxiliary structure; 41. Support plate; 42. Electric actuator; 43. Rotating seat; 44. Support rod; 45. Turntable; 46. Connecting rod; 47. Connecting plate; 48. Arc-shaped hole; 49. Positioning rod; 5. Handle. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0033] Please see Figure 1 The present invention provides a DEMO box for controlling a PLC demonstration device, comprising: a box body 1, a box cover 2 rotatably connected to the upper surface of the box body 1, a handle 5 rotatably connected to one side of the outer wall of the box body 1, an adjustment structure 3 provided on the inner wall of the box body 1, and an auxiliary structure 4 provided on the outer wall of the box body 1.

[0034] In the embodiments of this utility model, please refer to Figure 2 and Figure 3The adjustment structure 3 includes a rotating rod 301 and a chain 306. The lower end of the rotating rod 301 is rotatably connected to the bottom of the inner wall of the housing 1. A driven gear 302 is fixedly connected to the arc surface of the rotating rod 301. A motor base 303 is fixedly connected to the bottom of the inner wall of the housing 1. A servo motor 304 is fixedly connected to the inner wall of the motor base 303. A drive gear 305 is fixedly connected to the output end of the servo motor 304. The chain 306 meshes with the drive gear 305 and the driven gear 302. A support plate 307 is fixedly connected to the upper end of the rotating rod 301. Several sliding holes 308 are opened on the surface of the support plate 307. A sliding rod 309 is slidably connected to the inner wall of the sliding hole 308. An adjusting ring 310 is threadedly connected to the arc surface of the sliding rod 309. A top rod 311 is fixedly connected to the arc surface of the sliding rod 309. By setting the adjustment structure 3, two effects are achieved: firstly, PLC demonstration devices of different sizes can be fixed inside the DEMO box, increasing the applicability of the DEMO box; secondly, products can be displayed from multiple angles, improving the display effect and audience experience, and enhancing the practicality of the DEMO box. Two positioning holes 314 are formed on the inner wall of the sliding hole 308. Two positioning blocks 315 are fixedly connected to the arc surface of the sliding rod 309, and the positioning blocks 315 are slidably connected to the inner wall of the positioning holes 314. When the sliding rod 309 slides along the inner wall of the sliding hole 308, the positioning blocks 315 fixed to the arc surface of the sliding rod 309 will slide along the inner wall of the positioning holes 314, thereby improving the stability of the sliding rod 309 driving the top rod 311 to move. A limiting post 317 is fixedly connected to the lower surface of the support plate 307. A positioning post 316 is fixedly connected to the arc surface of the slide rod 309. Both the positioning post 316 and the limiting post 317 have hooks 318 abutting against their arc surfaces. An elastic rope 319 is fixedly connected to one end of each hook 318 that is close to the other. After the rotating adjusting ring 310 separates from the support plate 307, the elastic rope 319 pulls the positioning post 316. The positioning post 316 drives the slide rod 309 to move, and the slide rod 309 drives the top rod 311 to quickly separate from the demonstration equipment, thereby quickly releasing the limitation on the demonstration product. Furthermore, if the elastic rope 319 wears out or breaks, the two hooks 318 can be moved to separate it from the positioning post 316 and the limiting post 317 to replace the elastic rope 319. A rubber pad 313 is fixedly connected to the lower surface of the adjusting ring 310. The diameter of the rubber pad 313 is larger than the diameter of the adjusting ring 310. The rubber pad 313 increases the friction of the adjusting ring 310 near the support plate 307, thus making the adjusting ring 310 more firmly in contact with the support plate 307. Several anti-slip grooves 312 are evenly distributed on the outer wall of the adjusting ring 310. Personnel can use the anti-slip grooves 312 to rotate the adjusting ring 310, achieving convenient control of the adjusting ring 310.

[0035] In the embodiments of this utility model, please refer to Figure 4 and Figure 5The auxiliary structure 4 includes a support plate 41, one side of which is fixedly connected to the housing 1. An electric actuator 42 is fixedly connected to the side of the support plate 41 away from the housing 1. A rotating seat 43 is fixedly connected to the output end of the electric actuator 42. A support rod 44 is fixedly connected to one side of the outer wall of the housing 1. A turntable 45 is rotatably connected to the end of the support rod 44 away from the housing 1. The axis of rotation of the turntable 45 is coaxial with the axis of rotation of the housing cover 2. A connecting rod 46 is rotatably connected to the centrifugal position of the turntable 45 away from the support rod 44. One end of the connecting rod 46 is rotatably connected to the inner wall of the rotating seat 43. A connecting plate 47 is fixedly connected to the side of the turntable 45 away from the connecting rod 46. One side of the connecting plate 47 is fixedly connected to one side of the outer wall of the housing 1. By setting up the auxiliary structure 4, the DEMO housing can be automatically controlled by personnel to open and close the housing cover 2 during use, without manual operation. This is suitable for scenarios requiring frequent demonstrations or quick access to items, improving the ease of use of the DEMO housing. An arc-shaped hole 48 is provided on the side of the turntable 45. A positioning rod 49 is slidably connected to the inner wall of the arc-shaped hole 48. One end of the positioning rod 49 is fixedly connected to the arc surface of the support rod 44. When the turntable 45 rotates, the positioning rod 49 fixed on the support rod 44 will slide along the inner wall of the arc-shaped hole 48. Since the angle of the arc-shaped hole 48 is limited, the angle of the turntable 45 can be limited, thus limiting the rotation angle of the turntable 45 and the box cover 2.

[0036] The working principle of the DEMO box for controlling PLC demonstration equipment provided by this utility model is as follows: When it is necessary to place PLC demonstration equipment of different sizes inside the box 1 and fix it securely, first open the box cover 2, then place the demonstration equipment at the center of the upper surface of the support plate 307, and then adjust the slide rod 309 according to the size of the demonstration equipment, so that the slide rod 309 moves along the inner wall of the sliding hole 308, and drives the top rod 311 to move closer to the demonstration equipment. When the top rod 311 abuts against the side of the demonstration equipment, it can be stopped. The movement of the anti-slip rod 309, followed by the rotation of the adjusting ring 310 via the anti-slip texture 312, causes the adjusting ring 310 to drive the rubber pad 313 to abut against the upper surface of the support plate 307. Repeating the above steps and adjusting other top rods 311 according to the size of the demonstration equipment completes the positioning of the demonstration equipment. When multi-directional display of the demonstration equipment is required, the servo motor 304 is activated to drive the drive gear 305 to rotate. The drive gear 305 drives the driven gear 302 to rotate via the chain 306. The driven gear 302 then drives the rotating rod 301 to rotate. Rod 301 drives the support plate 307 and the demonstration equipment to rotate, enabling the PLC demonstration equipment to rotate automatically while being displayed. When it is necessary to remove the PLC demonstration equipment from the support plate 307, the adjusting ring 310 is first rotated in the opposite direction using the anti-slip texture 312, causing the adjusting ring 310 to separate the rubber pad 313 from the support plate 307. At this time, the elastic rope 319 will pull the positioning column 316, which in turn drives the sliding rod 309 to move. The sliding rod 309 then drives the top rod 311 to quickly separate from the demonstration equipment, thus enabling rapid disengagement. The demonstration product is limited, and after the elastic rope 319 is worn or broken, the two movable hooks 318 can be separated from the positioning post 316 and the limiting post 317 to replace the elastic rope 319. When the top rod 311 is separated from the demonstration equipment, the demonstration equipment can be removed from the support plate 307. When the slide rod 309 slides along the inner wall of the slide hole 308, the positioning block 315 fixed on the arc surface of the slide rod 309 will slide along the inner wall of the positioning hole 314, thereby improving the stability of the slide rod 309 driving the top rod 311 to move.

[0037] When it is necessary to open the lid 2, first activate the electric actuator 42 to drive the rotating seat 43, causing the rotating seat 43 to move closer to the turntable 45. The movement of the rotating seat 43 drives the connecting rod 46 to rotate, which in turn drives the turntable 45 to rotate clockwise. The turntable 45 drives the connecting plate 47, which in turn drives the lid 2, causing the lid 2 to rotate away from the box body 1, thus automatically opening the lid 2. Once the lid 2 is opened to the appropriate position, the operation of the electric actuator 42 can be stopped. When it is necessary to close the lid 2, first activate the electric actuator 42 to drive the rotating seat 43, causing the rotating seat 43 to rotate... 43 moves away from the turntable 45, the rotating seat 43 drives the connecting rod 46 to rotate in the opposite direction, the connecting rod 46 drives the turntable 45 to rotate counterclockwise, the turntable 45 drives the connecting plate 47 and the box cover 2, causing the box cover 2 to rotate towards the box body 1. When the box cover 2 is closed, the operation of the electric push rod 42 can be stopped. When the turntable 45 rotates, the positioning rod 49 fixed on the support rod 44 will slide along the inner wall of the arc hole 48. Since the angle of the arc hole 48 is limited, the angle of the turntable 45 can be limited, and thus the rotation angle of the turntable 45 and the box cover 2 can be limited.

[0038] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A DEMO box for controlling a PLC demonstration device, characterized in that, include: A housing (1) is provided, with a lid (2) rotatably connected to the upper surface of the housing (1). A handle (5) is rotatably connected to one side of the outer wall of the housing (1). An adjustment structure (3) is provided on the inner wall of the housing (1). The adjustment structure (3) includes a rotating rod (301) and a chain (306). The lower end of the rotating rod (301) is rotatably connected to the bottom of the inner wall of the housing (1). A driven gear (302) is fixedly connected to the arc surface of the rotating rod (301). A motor base (303) is fixedly connected to the bottom of the inner wall of the housing (1). A servo motor is fixedly connected to the inner wall of the motor base (303). The servo motor (304) has a drive gear (305) fixedly connected to its output end. The chain (306) meshes with the drive gear (305) and the driven gear (302). The upper end of the rotating rod (301) is fixedly connected to a support plate (307). The surface of the support plate (307) is provided with several sliding holes (308). The inner wall of the sliding hole (308) is slidably connected to a slide rod (309). The arc surface of the slide rod (309) is threadedly connected to an adjusting ring (310). The arc surface of the slide rod (309) is fixedly connected to a top rod (311).

2. The DEMO box for PLC demonstration equipment control according to claim 1, characterized in that, The inner wall of the sliding hole (308) has two positioning holes (314), and the arc surface of the sliding rod (309) is fixedly connected to two positioning blocks (315). The positioning blocks (315) are slidably connected to the inner wall of the positioning holes (314).

3. The DEMO box for PLC demonstration equipment control according to claim 1, characterized in that, The lower surface of the support plate (307) is fixedly connected to a limiting post (317), and the arc surface of the slide rod (309) is fixedly connected to a positioning post (316). The arc surfaces of the positioning post (316) and the limiting post (317) are both abutted by hooks (318), and the ends of the two hooks (318) that are close to each other are fixedly connected to an elastic rope (319).

4. The DEMO box for PLC demonstration equipment control according to claim 1, characterized in that, A rubber pad (313) is fixedly connected to the lower surface of the adjusting ring (310), and the diameter of the rubber pad (313) is larger than the diameter of the adjusting ring (310).

5. A DEMO box for PLC demonstration equipment control according to claim 1, characterized in that, The outer wall of the adjusting ring (310) is provided with a plurality of anti-slip textures (312), which are evenly distributed on the outer wall of the adjusting ring (310).

6. The DEMO box for PLC demonstration equipment control according to claim 1, characterized in that, The outer wall of the housing (1) is provided with an auxiliary structure (4), the auxiliary structure (4) includes a support plate (41), one side of the support plate (41) is fixedly connected to the housing (1), an electric actuator (42) is fixedly connected to the side of the support plate (41) away from the housing (1), a rotating seat (43) is fixedly connected to the output end of the electric actuator (42), a support rod (44) is fixedly connected to one side of the outer wall of the housing (1), and one end of the support rod (44) away from the housing (1) is fixedly connected to the support rod (44). A turntable (45) is rotatably connected. The axis of rotation of the turntable (45) is coaxial with the axis of rotation of the box cover (2). A connecting rod (46) is rotatably connected to the centrifugal position of the turntable (45) away from the support rod (44). One end of the connecting rod (46) is rotatably connected to the inner wall of the rotating seat (43). A connecting plate (47) is fixedly connected to the side of the turntable (45) away from the connecting rod (46). One side of the connecting plate (47) is fixedly connected to one side of the outer wall of the box body (1).

7. A DEMO box for PLC demonstration equipment control according to claim 6, characterized in that, The turntable (45) has an arc-shaped hole (48) on its side. A positioning rod (49) is slidably connected to the inner wall of the arc-shaped hole (48). One end of the positioning rod (49) is fixedly connected to the arc surface of the support rod (44).