A PLC control cabinet with a pull-out shelf structure

Abstract

This utility model discloses a PLC control cabinet with a pull-out shelf structure, including a cabinet and several shelves. The shelves are horizontally arranged within the cabinet. Each shelf has a slider and a slide rail on both its left and right sides. The slide rail is fixed within the cabinet, and the left and right sides of the shelf are rotatably connected to the slider. This utility model, through the slider-slide rail mechanism and the rotatable connection between the shelf and the slider, allows the shelf to be pulled forward and then flipped upward, exposing the bottom interface of the shelf to the front of the cabinet. This increases maintenance space and improves troubleshooting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of PLC control cabinets, specifically to a PLC control cabinet with a pull-out shelf structure. Background Technology

[0002] With the continuous improvement of industrial automation, PLC control cabinets have been widely used in various production sites. Inside a PLC control cabinet, various functional modules, wiring terminals, power supplies, and communication units are typically installed via several shelves. The structure of these shelves directly affects the assembly efficiency, ease of maintenance, and system reliability of the control cabinet.

[0003] The shelves of existing PLC control cabinets are mostly fixed welded or ordinary slide rail structures. The fixed welded method is time-consuming and labor-intensive to disassemble and assemble the whole panel. Although the ordinary slide rail structure can be pulled out, the bottom interface is still blocked by the shelf body and the lower module, resulting in limited maintenance space, low troubleshooting efficiency, and difficulty in meeting the needs of rapid on-site maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a PLC control cabinet with a pull-out shelf structure. The control cabinet is connected to the slide rail mechanism and the shelf to the slide rail through a sliding connection, so that the shelf can be pulled forward and flipped upward to expose the bottom interface of the shelf to the front of the cabinet, thereby increasing the maintenance space and improving the troubleshooting efficiency.

[0005] The technical solution adopted by this utility model to solve the above problems is:

[0006] A PLC control cabinet with a pull-out shelf structure includes a cabinet and several shelves. The shelves are all horizontally arranged inside the cabinet. Sliders and slide rails are provided on the left and right sides of the shelves. The slide rails are fixed inside the cabinet, and the left and right sides of the shelves are rotatably connected to the sliders.

[0007] In the above technical solution, preferably, the bottom of the shelf is provided with a hinge seat that slides left and right along the slide groove, and a support rod is hinged on the hinge seat. The slider is strip-shaped and has several slots at its upper end. The upper end of the support rod is frictionally hinged to the hinge seat, and the lower end of the support rod is engaged in the slot.

[0008] In the above technical solution, preferably, a limiting block is provided on the inner side of the slide rail, and a strip groove is provided on the outer side of the slider. The limiting block is slidably disposed in the strip groove and abuts against the rear end of the strip groove when the shelf is pulled forward.

[0009] In the above technical solution, preferably, the left and right sides of the rear end of the shelf are rotatably connected to two sliders, the left and right sides of the front end of the shelf are provided with downward insert rods, and the sliders are provided with upward-opening slots, and the insert rods are adapted to be inserted into the slots.

[0010] In the above technical solution, preferably, the length of the slide rail is greater than the length of the slider.

[0011] In the above technical solution, preferably, multiple mounting holes are provided in the vertical direction inside the box, and the slide rail is detachably fixed in the mounting holes by screws.

[0012] Compared with the prior art, this utility model has the following advantages and effects:

[0013] This invention achieves the effect of a pull-out shelf by first pulling the shelf forward, allowing the slider to slide within the slide rail and thus move the shelf forward to be pulled out of the box. Then, the front end of the shelf is pushed upward, causing the shelf to rotate on the slider, thereby exposing the bottom interface of the shelf to the front of the box. This increases the maintenance space, facilitates operation on the bottom interface of the shelf, improves troubleshooting efficiency, and meets the needs of rapid on-site maintenance. Attached Figure Description

[0014] Figure 1 This is a side sectional view of a PLC control cabinet with a pull-out shelf structure according to an embodiment of the present invention.

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure of the shelf and the slide rails on both sides.

[0016] Figure 3 yes Figure 2 A schematic diagram of the structure of the layer plate and the sliders on both sides.

[0017] Figure 4 yes Figure 2 A schematic diagram of the structure after the middle layer plate is removed and flipped over.

[0018] Figure 5 yes Figure 2 Enlarged view of point A in the middle.

[0019] Figure 6 yes Figure 3 A schematic diagram of the middle slider.

[0020] Figure 7 yes Figure 3 Enlarged view of point B in the middle.

[0021] The components include: box body 1, mounting hole 11, shelf 2, slide groove 21, hinge seat 22, support rod 23, insertion rod 24, slider 3, card slot 31, strip groove 32, slot 33, slide rail 4, and limit block 41. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0023] See Figures 1-7 This embodiment provides a PLC control cabinet with a pull-out shelf structure, including a housing 1 and several shelves 2. The shelves 2 are all horizontally arranged inside the housing 1. Slider 3 and slide rail 4 are provided on the left and right sides of the shelves 2. The slide rail 4 is fixed inside the housing 1, and the left and right sides of the shelves 2 are rotatably connected to the slider 3.

[0024] The middle shelf 2 of this utility model is used to install various functional modules, wiring terminals, power supplies and communication units. When the control cabinet needs to be repaired, the shelf 2 is pulled forward first. The slider 3 slides in the slide rail 4 so that the shelf 2 can move forward and be pulled out from the cabinet 1 to achieve the effect of a pull-out shelf 2. Then, the front end of the shelf 2 is pushed upward, and the shelf 2 rotates on the slider 3, thereby exposing the bottom interface of the shelf 2 to the front side of the cabinet 1, increasing the maintenance space, facilitating the operation of the bottom interface of the shelf 2, thereby improving the troubleshooting efficiency and meeting the needs of rapid on-site maintenance.

[0025] See Figure 1 The housing 1 has multiple mounting holes 11 arranged vertically inside, and the slide rail 4 is detachably fixed in the mounting holes 11 by screws.

[0026] By installing the slide rail 4 in the mounting holes 11 at different heights, the height of the shelf 2 and the distance between adjacent shelves 2 can be adjusted to accommodate the height of components installed on different shelves 2. This allows for the rational planning of the internal space of the cabinet 1 and improves the utilization rate of the internal space of the cabinet 1.

[0027] See Figure 4 The bottom of the layer plate 2 is provided with a hinge seat 22 that slides left and right along the slide groove 21. A support rod 23 is hinged on the hinge seat 22. The slider 3 is strip-shaped and has several slots 31 at its upper end. The upper end of the support rod 23 is frictionally hinged to the hinge seat 22, and the lower end of the support rod 23 is engaged in the slots 31.

[0028] When the shelf 2 is flipped upwards so that the bottom of the shelf 2 faces forward, the support rod 23 is rotated and the support rod 23 and the hinge seat 22 are driven to move to the right along the slide groove 21, so that the lower end of the support rod 23 can be engaged in the slot 31. Thus, the support rod 23 supports the shelf 2 without the need for maintenance personnel to support it by hand. Maintenance personnel can perform maintenance work with both hands, improving the convenience of operation and maintenance efficiency.

[0029] See Figure 2 , Figure 3The length of the slide rail 4 is greater than the length of the slider 3.

[0030] The slide rail 4 is longer than the slider 3, which allows the shelf 2 to continue moving forward a certain distance when it is pulled out. This reduces the restriction on the rotation angle of the shelf 2 by the adjacent shelf 2 above it when one of the shelf 2 is pulled out. This ensures that after the shelf 2 is flipped upward and fixed by the support rod 23 and the slot 31, the flip angle of the shelf 2 can approach but always be less than a right angle. This allows the bottom of the shelf 2 to face forward as much as possible, while reducing the risk of the shelf 2 flipping backward by exceeding a right angle.

[0031] See Figure 5 , Figure 6 The slide rail 4 has a limiting block 41 on its inner side and a strip groove 32 on its outer side. The limiting block 41 is slidably disposed in the strip groove 32 and when the shelf 2 is pulled forward, the limiting block 41 abuts against the rear end of the strip groove 32.

[0032] When shelf 2 is pulled forward, slider 3 moves forward with shelf 2 within slide rail 4. Strip groove 32 moves forward relative to limit block 41 until limit block 41 abuts against the rear end of strip groove 32. Slider 3 can no longer move forward, and shelf 2 can no longer be pulled forward. The limiting effect of limit block 41 reduces the risk of shelf 2 falling due to slider 3 being completely pulled out of slide groove 21, thus improving the safety of this utility model in use.

[0033] See Figure 3 , Figure 7 The left and right sides of the rear end of the layer plate 2 are rotatably connected to two sliders 3. The left and right sides of the front end of the layer plate 2 are provided with downward insert rods 24. The sliders 3 are provided with slots 33 with upward openings. The insert rods 24 are adapted to be inserted into the slots 33.

[0034] The left and right sides of the shelf 2 are connected to the two sliders 3 via a rotating connection and a mutually engaging insert rod 24 slot 33. When the front end of the shelf 2 is pushed upward, the insert rod 24 moves upward and separates from the slot 33, and the rear end of the shelf 2 rotates relative to the sliders 3, thus turning the bottom of the shelf 2 towards the front. When the shelf 2 is lowered, the insert rod 24 is inserted into the slot 33, and the engagement of the insert rod 24 and the slot 33 improves the stability of the shelf 2.

[0035] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A PLC control cabinet having a pull-out panel structure, characterized by: It includes a box body and several shelves, all of which are horizontally arranged inside the box body. Each shelf has a slider and a slide rail on its left and right sides. The slide rail is fixed inside the box body, and the left and right sides of the shelf body are rotatably connected to the slider.

2. The PLC control cabinet with pull-out panel structure according to claim 1, characterized in that: The bottom of the shelf is provided with a hinge seat that slides left and right along the slide groove. A support rod is hinged on the hinge seat. The slider is strip-shaped and has several slots at its upper end. The upper end of the support rod is frictionally hinged to the hinge seat, and the lower end of the support rod is engaged in the slot.

3. The PLC control cabinet with a pull-out shelf structure according to claim 1, characterized in that: The slide rail is provided with a limit block on its inner side and a strip groove on its outer side. The limit block is slidably disposed in the strip groove and abuts against the rear end of the strip groove when the shelf is pulled forward.

4. The PLC control cabinet with a pull-out shelf structure according to claim 1, characterized in that: The left and right sides of the rear end of the shelf are rotatably connected to two sliders, and the left and right sides of the front end of the shelf are provided with downward insert rods. The sliders are provided with slots with upward openings, and the insert rods are adapted to be inserted into the slots.

5. The PLC control cabinet with a pull-out shelf structure according to claim 1, characterized in that: The length of the slide rail is greater than the length of the slider.

6. The PLC control cabinet with a pull-out shelf structure according to claim 1, characterized in that: The box has multiple mounting holes along the vertical direction, and the slide rail is detachably fixed in the mounting holes by screws.

Images