PLC control box convenient to overhaul and maintain

Abstract

The utility model discloses a PLC control box convenient to overhaul and maintain, and relates to the technical field of PLC control boxes. Comprising a cabinet body hinged to a cabinet door, an inner cavity of the cabinet body is movably connected with a movable plate, the front side of the movable plate is fixedly connected with a mounting frame and a mounting rail, the bottom inner wall of the cabinet body is fixedly connected with a guide strip, the bottom of the movable plate is fixedly connected with a sliding sleeve in sliding connection with the guide strip, and the sliding sleeve extends to the front end of the movable plate. A mounting block is fixedly connected to the top of the sliding sleeve, a torsional spring is mounted on the mounting block and connected with a connecting rod, the connecting rod is connected with a pressing plate capable of being pressed on the guide strip, convex teeth are evenly arranged on the top of the guide strip, and clamping protrusions capable of being clamped in gaps of the convex teeth are arranged at the bottom of the pressing plate. According to the PLC control box convenient to overhaul and maintain, the movable plate for mounting the mounting rack and the mounting rail is movably arranged in the cabinet body, so that the movable plate can be conveniently pulled out, and electrical elements mounted on the movable plate can be conveniently positioned on the front side of the cabinet body so as to be overhauled.

Description

TECHNICAL FIELD

[0001] The utility model relates to PLC control box technical field, concretely is a kind of PLC control box of being convenient for overhauling and maintaining. BACKGROUND

[0002] PLC control cabinet is a kind of for integrated air switch, PLC, power supply, relay and wiring terminal cabinet, above-mentioned device is installed in the inside of cabinet, then PLC control cabinet is installed in the position of planning;PLC control cabinet is widely applied in various scales of industrial automation control occasions in various industries (such as electric power, metallurgy, chemical industry, papermaking and environmental protection sewage treatment etc.).

[0003] The existing PLC control cabinet needs to open cabinet door in the process of overhauling and maintaining, so that electrical components in the cabinet are exposed, but electrical components are located in the cabinet, and the overall position is fixed, so that the maintenance personnel are not convenient for maintaining electrical components in the cabinet. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of PLC control box of being convenient for overhauling and maintaining to solve the problem in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of PLC control box of being convenient for overhauling and maintaining, including the cabinet of hinged cabinet door, the inner chamber of the cabinet is movably connected with movable plate, the front side of the movable plate is fixedly connected with mounting bracket and installation rail, the bottom inner wall of the cabinet is fixedly connected with guide strip, the bottom of the movable plate is fixedly connected with the sliding sleeve of sliding connection with guide strip, the sliding sleeve extends to the front end of movable plate, the top of the sliding sleeve is fixedly connected with mounting block, the mounting block is installed with torsion spring, the torsion spring is connected with connecting rod, the connecting rod is connected with the pressing plate that can be pressed on guide strip, the top of the guide strip is evenly provided with protruding tooth, the bottom of the pressing plate is provided with the card protrusion that can be inserted in the gap of protruding tooth.

[0006] Further, the bottom inner wall of the cabinet is fixedly connected with guide rail on the two sides of guide strip, and the bottom of the movable plate is fixedly connected with sliding block slidingly connected with guide rail.

[0007] Further, the end of the guide strip is fixedly connected with the stop block for preventing the sliding sleeve from being separated from the guide strip on both sides.

[0008] Further, the front end of the sliding sleeve is fixedly connected with operating lever on both sides for driving the sliding sleeve to move along the guide strip.

[0009] Further, one side of the cabinet is provided with two upper and lower ventilation openings, and the outer wall of the cabinet is provided with heat dissipation louver covering the ventilation opening.

[0010] Furthermore, a fixed frame covering the vent is fixedly connected to an inner wall of one side of the cabinet, and the inner cavity of the fixed frame is provided with a filter screen frame protruding to the outside of the fixed frame and serving to filter dust. Blocks are provided on both sides of the filter screen frame, and a U-shaped block is fixedly connected to the side of the fixed frame away from the vent, and a slot is formed between the U-shaped block and the fixed frame, and the block can be inserted into the slot.

[0011] Compared with the prior art, the present invention provides a PLC control box that is easy to repair and maintain, and has the following beneficial effects:

[0012] 1. The PLC control box which is easy to inspect and maintain has a movable plate for mounting a mounting frame and a mounting rail movably arranged in the cabinet body, so that the movable plate can be pulled out conveniently so that the electrical components installed on the movable plate can be conveniently placed at the front side of the cabinet body for easy inspection and maintenance.

[0013] 2. The PLC control box, which is easy to inspect and maintain, has a fixed frame covering the ventilation opening on the inner wall of the cabinet side, and a filter frame installed therein, which can play a certain role in filtering dust during the ventilation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is an enlarged schematic diagram of point A of the present utility model;

[0017] Figure 4 This is a schematic diagram of the planar structure of the utility model;

[0018] Figure 5 This is an enlarged schematic diagram of point B of the present utility model;

[0019] Figure 6 This is a structural diagram of the cabinet side panel portion of the present utility model;

[0020] Figure 7 It is an enlarged schematic diagram of point C of the present invention.

[0021] In the figure: 1. Cabinet body; 2. Cabinet door; 3. Movable panel; 4. Mounting frame; 5. Mounting rail; 6. Guide rail; 7. Guide bar; 8. Slider; 9. Sleeve; 10. Mounting block; 11. Torsion spring; 12. Connecting rod; 13. Pressing plate; 14. Protruding tooth; 15. Operating lever; 16. Cooling louver; 17. Fixing frame; 18. Ventilation port; 19. Filter frame; 20. U-shaped block; 21. Clamping block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-7 The utility model discloses a PLC control box which is easy to inspect and maintain, including a cabinet body 1 with a cabinet door 2 hingedly connected, the inner cavity of the cabinet body 1 being movably connected with a movable plate 3, the front side of the movable plate 3 being fixedly connected with a mounting bracket 4 and a mounting rail 5, the bottom inner wall of the cabinet body 1 being fixedly connected with a guide bar 7, the bottom of the movable plate 3 being fixedly connected with a sliding sleeve 9 which is slidably connected with the guide bar 7, the sliding sleeve 9 extending to the front end of the movable plate 3, the top of the sliding sleeve 9 being fixedly connected with a mounting block 10, the mounting block 10 being installed with a torsion spring 11, the torsion spring 11 being connected with a connecting rod 12, the connecting rod 12 being connected with a pressing plate 13 which can be pressed on the guide bar 7, the top of the guide bar 7 being evenly provided with convex teeth 14, and the bottom of the pressing plate 13 being provided with a card protrusion which can be stuck in the gap between the convex teeth 14.

[0024] Pulling the pressure plate 13 upward can cause the torsion spring 11 to deform, which can then easily drive the movable plate 3 to move so that the sliding sleeve 9 can move along the guide bar 7. When the pressure plate 13 is pressed on the guide bar 7, the bottom end of the pressure plate 13 is stuck in the convexity in the gap between the convex teeth 14, making it difficult for the sliding sleeve 9 to move relative to the guide bar 7, and the movable plate 3 remains stable.

[0025] Specifically, the bottom inner wall of the cabinet 1 is fixedly connected to guide rails 6 on both sides of the guide bar 7 , and the bottom of the movable panel 3 is fixedly connected to a slider 8 that is slidably connected to the guide rails 6 .

[0026] In this embodiment, the cooperation between the slider 8 and the guide rail 6 can guide the movement of the movable panel 3 .

[0027] Specifically, both sides of the end of the guide bar 7 are fixedly connected with stoppers that prevent the sliding sleeve 9 from separating from the guide bar 7.

[0028] In this embodiment, the stopper is located at the end of the guide strip 7 close to the cabinet door 2. When the movable plate 3 is pulled toward the outside of the cabinet body 1, the stopper can block the movement of the sliding sleeve 9 to prevent the sliding sleeve 9 from separating from the guide strip 7.

[0029] Specifically, operating rods 15 for driving the sliding sleeve 9 to move along the guide bar 7 are fixedly connected to both sides of the front end of the sliding sleeve 9 .

[0030] In this embodiment, the operation rod 15 is provided to facilitate the movement of the movable plate 3 by driving the sliding sleeve 9 to move along the guide bar 7 .

[0031] Specifically, two ventilation openings 18 arranged vertically are provided on one side of the cabinet 1 , and heat dissipation louvers 16 covering the ventilation openings 18 are provided on the outer wall of the cabinet 1 .

[0032] In this embodiment, the heat dissipation louvers 16 and the vents 18 cooperate to allow air to flow inside the cabinet 1 .

[0033] Specifically, a fixed frame 17 covering the vent 18 is fixedly connected to the inner wall of one side of the cabinet 1. The inner cavity of the fixed frame 17 is provided with a filter frame 19 protruding to the outside of the fixed frame 17 and serving to filter dust. Blocks 21 are provided on both sides of the filter frame 19. A U-shaped block 20 is fixedly connected to the side of the fixed frame 17 away from the vent 18. A slot is formed between the U-shaped block 20 and the fixed frame 17, and the block 21 can be inserted into the slot.

[0034] In this embodiment, the filter screen frame 19 covers the vent 18, and part of it protrudes to the outside of the fixed frame 17. The block 21 is made of elastic plastic or elastic metal and has elastic deformation capability. The block 21 is located on the side wall of the portion of the filter screen frame 19 that protrudes to the fixed frame 17. The block 21 can be stuck in the slot formed between the U-shaped block 20 and the fixed frame 17, so that the filter screen frame 19 can remain stable.

[0035] In summary, the PLC control box which is easy to inspect and maintain has a movable plate 3 with a mounting frame 4 and a mounting rail 5 movably arranged in the cabinet 1, which makes it convenient to pull the movable plate 3 outward so that the electrical components installed on the movable plate 3 can be conveniently located at the front side of the cabinet 1 for inspection. A fixed frame 17 covering the ventilation opening 18 is provided on the inner wall of the cabinet 1, and a filter frame 19 is installed therein, which can play a certain role in filtering dust during the ventilation process.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PLC control box that is easy to inspect and maintain, comprising a cabinet body (1) with a cabinet door (2) hingedly connected, characterized in that: The inner cavity of the cabinet (1) is movably connected to a movable plate (3), the front side of the movable plate (3) is fixedly connected to a mounting frame (4) and a mounting rail (5), the bottom inner wall of the cabinet (1) is fixedly connected to a guide bar (7), the bottom of the movable plate (3) is fixedly connected to a sliding sleeve (9) slidably connected to the guide bar (7), the sliding sleeve (9) extends to the front end of the movable plate (3), the top of the sliding sleeve (9) is fixedly connected to a mounting block (10), a torsion spring (11) is installed on the mounting block (10), the torsion spring (11) is connected to a connecting rod (12), the connecting rod (12) is connected to a pressing plate (13) that can be pressed on the guide bar (7), the top of the guide bar (7) is evenly provided with convex teeth (14), and the bottom of the pressing plate (13) is provided with a clamping protrusion that can be clamped in the gap between the convex teeth (14).

2. A PLC control box that is easy to repair and maintain according to claim 1, characterized in that: The bottom inner wall of the cabinet (1) is fixedly connected to guide rails (6) on both sides of the guide bar (7), and the bottom of the movable plate (3) is fixedly connected to a slider (8) that is slidably connected to the guide rails (6).

3. The PLC control box that is easy to repair and maintain according to claim 1 is characterized in that: Blocks are fixedly connected to both sides of the end of the guide bar (7) to prevent the sliding sleeve (9) from separating from the guide bar (7).

4. The PLC control box that is easy to repair and maintain according to claim 1 is characterized in that: Both sides of the front end of the sliding sleeve (9) are fixedly connected with operating rods (15) for driving the sliding sleeve (9) to move along the guide bar (7).

5. The PLC control box that is easy to repair and maintain according to claim 1 is characterized in that: Two ventilation openings (18) arranged vertically are provided on one side of the cabinet (1), and heat dissipation louvers (16) covering the ventilation openings (18) are provided on the outer wall of the cabinet (1).

6. The PLC control box that is easy to repair and maintain according to claim 5 is characterized in that: A fixed frame (17) is fixedly connected to the inner wall of one side of the cabinet body (1) and surrounds the ventilation opening (18). The inner cavity of the fixed frame (17) is provided with a filter frame (19) protruding to the outside of the fixed frame (17) and having the function of filtering dust. Both sides of the filter frame (19) are provided with a clamping block (21). A U-shaped block (20) is fixedly connected to the side of the fixed frame (17) away from the ventilation opening (18). A clamping slot is formed between the U-shaped block (20) and the fixed frame (17), and the clamping block (21) can be clamped into the clamping slot.

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