An electric control box slide
By designing an electrical control box slide rail in the auxiliary engine compartment of the diesel engine monorail locomotive, and utilizing a sliding plate, slider, and ball bearing structure, the problem of hydraulic pipeline obstructing maintenance was solved, enabling convenient extraction and stable installation of the PLC electrical control box, thus improving maintenance efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN JIN HUA PAUS RUBBER TIRE VEHICLE MFG
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-09
AI Technical Summary
During the maintenance of the PLC control box of the diesel engine monorail locomotive, the space obstruction of the hydraulic pipeline makes the operation complicated and inefficient for maintenance personnel, and there is a risk of hydraulic fluid entering the control box.
An electrical control box slide rail was designed, including an installation compartment and an auxiliary slide rail structure fixedly installed in the auxiliary machine compartment. The slide rail, slider and ball bearings are used to facilitate the extraction and installation of the PLC electrical control box. The locking structure ensures the stability of the electrical control box during operation.
It significantly improves the maintenance efficiency and convenience of PLC control boxes, reduces operational complexity, lowers sliding friction, extends equipment life, and prevents the control box from shifting during locomotive operation.
Smart Images

Figure CN224343521U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical control box maintenance technology, and more specifically, to an electrical control box slide rail. Background Technology
[0002] Currently, in the operating system of diesel engine monorail locomotives, the auxiliary engine compartment plays a crucial role in electrical integration. It contains various electrical boxes, among which the PLC control box is the core component for locomotive operation control.
[0003] However, the hydraulic lines required for the monorail crane's operation run through the auxiliary engine compartment from the top of the PLC control box. When wiring and maintenance work is required inside the PLC control box, the hydraulic lines create serious spatial obstacles. Maintenance personnel have to frequently adjust their position, wasting a lot of time and energy. Furthermore, for some hard-to-reach areas inside the control box, it is even necessary to remove part of the hydraulic lines to carry out the work. This not only greatly reduces maintenance efficiency and prolongs locomotive downtime, but also increases the complexity and difficulty of operation, and may even increase the risk of liquid from the hydraulic lines entering the control box.
[0004] In response to the above situation, this utility model proposes an electrical control box slide rail. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an electrical control box slide to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an electrical control box slide rail, comprising an installation compartment fixedly installed inside the auxiliary engine compartment, wherein a PLC electrical control box is installed inside the installation compartment.
[0007] This can be understood as the auxiliary engine compartment integrating and installing various electrical boxes. Among them, the PLC electrical control box is installed in the installation compartment at the top of the auxiliary engine compartment and is used to control the monorail crane.
[0008] To facilitate maintenance of the PLC control box, preferably, an auxiliary slide structure is provided at the connection between the PLC control box and the installation compartment. The auxiliary slide structure includes two slide plates, which are respectively fixedly installed on both sides of the inner wall of the installation compartment. A support plate is fixedly installed at the bottom of the PLC control box. The support plate is located at the top of the inner cavity of the installation compartment, and both ends of the support plate extend between the slide plates and the installation compartment. A sliding groove is formed through the surface of each of the two slide plates. A slider is slidably installed inside the sliding groove. Both sliders are fixedly installed on the surface of the support plate. Circular grooves are formed on both sides of the outer wall of each slider. Ball bearings are rolled inside the circular grooves, and the outer wall of the ball bearings rolls against the inner wall of the sliding groove.
[0009] To prevent the PLC control box from shifting, preferably, the top of the auxiliary sliding structure is provided with a locking structure. The locking structure includes two support blocks fixedly installed on the top of the slide plate, a screw fixedly installed between the two support blocks, a movable seat slidably installed on the outside of the screw, the movable seat fixedly installed on the top of the slide plate, and locking nuts provided on both sides of the screw and the movable seat, the locking nuts being threadedly connected to the screw.
[0010] The technical effects and advantages of this utility model are as follows:
[0011] 1. By setting up an auxiliary slide structure, and utilizing the cooperation of the sliding plate and the slider, as well as the rolling of the ball bearings, the PLC control box can be easily pulled out from the installation compartment during maintenance. This effectively avoids the space obstruction caused by the top hydraulic pipeline, greatly reduces the frequency of adjustment by maintenance personnel, and allows access to all areas of the box without dismantling the hydraulic pipeline, significantly improving maintenance efficiency and convenience. At the same time, the rolling of the ball bearings reduces sliding friction, making operation more labor-saving, reducing component wear, and extending the service life of the auxiliary slide structure.
[0012] 2. By setting up a locking structure, using a combination of screw, moving seat and locking nut, the PLC control box can be firmly limited after it is installed in place, effectively preventing the control box from shifting due to vibration and other factors during the operation of the diesel engine monorail locomotive, ensuring that the control box is always in a stable working state. Moreover, the control box can be fixed and released by simply tightening and loosening the nut, which is simple and quick to operate, taking into account both stability and maintenance flexibility. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the top structure of the support plate of this utility model.
[0015] Figure 3 This is a schematic diagram of the top structure of the skateboard of this utility model.
[0016] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0017] Figure 5 This is a schematic diagram of the connection structure between the slider and the movable seat of this utility model.
[0018] The attached diagram is labeled as follows: 1. Auxiliary compartment; 2. Installation compartment; 3. PLC control box; 4. Slide plate; 5. Support plate; 6. Slide groove; 7. Slider; 8. Circular groove; 9. Ball bearing; 10. Support block; 11. Screw; 12. Moving seat; 13. Locking nut. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] As attached Figure 1-5 The illustrated electrical control box slide includes an installation compartment 2 fixedly installed inside the auxiliary machine compartment 1, and a PLC electrical control box 3 is installed inside the installation compartment 2.
[0021] Specifically, in the above structure, the auxiliary engine compartment 1 is used for diesel engine monorail locomotives and integrates various electrical boxes. Among them, the PLC control box 3 is installed in the mounting compartment 2 at the top of the auxiliary engine compartment 1 and is used to control the monorail locomotive.
[0022] In this embodiment, as shown in the appendix Figure 1 , 2 As shown in Figures 3, 4, and 5, an auxiliary slide structure is provided at the connection between the PLC control box 3 and the installation chamber 2. The auxiliary slide structure includes two slide plates 4, which are fixedly installed on both sides of the inner wall of the installation chamber 2. A support plate 5 is fixedly installed at the bottom of the PLC control box 3. The support plate 5 is located at the top of the inner cavity of the installation chamber 2, and both ends of the support plate 5 extend between the slide plates 4 and the installation chamber 2. A slide groove 6 is opened through the surface of both slide plates 4. A slider 7 is slidably installed inside the slide groove 6. Both sliders 7 are fixedly installed on the surface of the support plate 5. A circular groove 8 is opened on both sides of the outer wall of the slider 7. A ball bearing 9 is rolled inside the circular groove 8. The outer wall of the ball bearing 9 is rolled and connected to the inner wall of the slide groove 6.
[0023] Specifically, in this structure, since the hydraulic pipelines required for the operation of the monorail crane pass through the auxiliary machine compartment 1 and all pass through the top of the PLC control box 3, when performing wiring and maintenance work inside the PLC control box, due to the space limitation of the top hydraulic pipelines, maintenance personnel need to frequently adjust the operating position. For areas that are difficult to reach in the box, it is even necessary to remove part of the hydraulic pipelines to carry out maintenance work, which greatly affects the maintenance efficiency and convenience, and may even increase the risk of liquid in the hydraulic pipelines entering the PLC control box 3. Therefore, when this structure is used to maintain the PLC control box 3;
[0024] The operator can first release the restriction of the locking structure and disconnect the wiring harness connected to the PLC control box 3. Pull the support plate 5 outward so that the support plate 5 drives the PLC control box 3, which is fixed to the top by bolts, to move outward. At this time, the two sliders 7 on the surface of the support plate 5 slide in the grooves 6 opened in the slide plate 4, so that part of the PLC control box 3 is pulled out of the installation compartment 2 in the auxiliary machine compartment 1, which makes it convenient for the operator to maintain and repair the PLC control box 3.
[0025] As the slider 7 slides inside the groove 6, the ball bearing 9 will adhere to the inner wall of the groove 6 and roll through the circular groove 8, which can reduce the friction of the slider 7 inside the groove 6, making it easier to pull the support plate 5.
[0026] In this embodiment, as shown in the appendix Figure 2 , 3 As shown in Figures 4 and 5, a locking structure is provided on the top of the auxiliary sliding structure. The locking structure includes two support blocks 10 fixedly installed on the top of the slide plate 4. A screw 11 is fixedly installed between the two support blocks 10. A movable seat 12 is slidably installed on the outside of the screw 11. The movable seat 12 is fixedly installed on the top of the slider 7. Locking nuts 13 are provided on both sides of the movable seat 12 outside the screw 11. The locking nuts 13 are threadedly connected to the screw 11.
[0027] Specifically, in this structure, the support plate 5 slides inside the slide groove 6 via the slider 7. After the PLC control box 3 is slid into the installation chamber 2 after being inspected, in order to prevent the PLC control box 3 from moving, the movement of the slider 7 will simultaneously drive the corresponding moving seat 12 to slide outside the screw 11. By rotating the locking nuts 13 on both sides of the moving seat 12, the locking nuts 13 are rotated on the external threads of the screw 11, and the two locking nuts 13 are rotated to both sides of the moving seat 12 to limit the moving seat 12, thereby preventing the PLC control box 3 from moving.
[0028] Similarly, when the PLC control box 3 needs to be removed from the installation compartment 2 for maintenance, simply rotate the locking nut 13 away from the moving base 12.
[0029] Working principle of this utility model:
[0030] This application provides a slide rail for an electrical control box. In specific use, when the diesel engine monorail locomotive is running normally, the PLC electrical control box 3 is firmly connected to the installation compartment 2 through the auxiliary slide rail structure. The locking structure plays a role, the support block 10 at the top of the slide plate 4 fixes the screw 11, the movable seat 12 is sleeved on the screw 11 and connected to the slider 7, and the locking nuts 13 on both sides are tightened to limit the position of the movable seat 12, ensuring that the slider 7 is firmly fixed in the slide groove 6, so that the PLC electrical control box 3 is firmly fixed in the installation compartment 2, ensuring that the electrical control box works stably when the locomotive is running.
[0031] When wiring or maintenance is required for the PLC control box 3, the operator first loosens the locking nut 13 to release the limit on the moving seat 12, then disconnects the wiring harness connected to the PLC control box 3 and pulls the support plate 5 outward. At this time, the support plate 5 drives the PLC control box 3 at the top to move. The slider 7 on the support plate 5 slides in the groove 6 of the slide plate 4, and the ball 9 rolls in the circular groove 8 to reduce friction, so that the PLC control box 3 can be smoothly pulled out of the installation chamber 2, freeing it from the space restriction of the top hydraulic pipeline and making it convenient for maintenance personnel to operate.
[0032] After the maintenance is completed, push the PLC control box 3 back into the installation chamber 2. The slider 7 drives the moving seat 12 to slide and reset on the screw 11. Tighten the locking nuts 13 on both sides again to make them press against the moving seat 12. Re-limit and fix the slider 7 and the PLC control box 3 to ensure that the control box is restored to a stable state and can be put into normal use.
[0033] It is worth noting that all contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures, nor will they be described here.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electrical control box slide rail, comprising an installation compartment (2) fixedly installed inside an auxiliary engine compartment (1), characterized in that: The installation chamber (2) is equipped with a PLC control box (3), and an auxiliary slide structure is provided at the connection between the PLC control box (3) and the installation chamber (2). A locking structure is provided at the top of the auxiliary slide structure.
2. The electrical control box slide rail according to claim 1, characterized in that: The auxiliary slide structure includes two slide plates (4), which are fixedly installed on both sides of the inner wall of the installation chamber (2). A support plate (5) is fixedly installed at the bottom of the PLC control box (3). The support plate (5) is located at the top of the inner cavity of the installation chamber (2), and both ends of it extend between the slide plates (4) and the installation chamber (2).
3. The electrical control box slide rail according to claim 2, characterized in that: Both of the two slide plates (4) have through grooves (6) on their surfaces, and sliders (7) are slidably installed inside the grooves (6). Both sliders (7) are fixedly installed on the surface of the support plate (5).
4. The electrical control box slide rail according to claim 3, characterized in that: The outer walls of the slider (7) are provided with circular grooves (8) on both sides. Ball bearings (9) are rolled inside the circular grooves (8). The outer walls of the ball bearings (9) are rolled and connected to the inner walls of the groove (6).
5. The electrical control box slide rail according to claim 1, characterized in that: The locking structure includes two support blocks (10) fixedly installed on the top of the slide plate (4), a screw (11) fixedly installed between the two support blocks (10), a movable seat (12) slidably installed on the outside of the screw (11), and the movable seat (12) fixedly installed on the top of the slider (7).
6. The electrical control box slide rail according to claim 1, characterized in that: Locking nuts (13) are provided on both sides of the screw (11) and on both sides of the movable seat (12), and the locking nuts (13) are threadedly connected to the screw (11).