Explosion-proof wiring shell of PLC (Programmable Logic Controller) control cabinet

Abstract

The utility model relates to the technical field of PLC control cabinets, and discloses a PLC control cabinet explosion-proof wiring housing, which comprises a control cabinet housing and a modular mounting rack mounted on the rear side surface in the control cabinet housing, the modular mounting rack is a rectangular frame, and the front surface of the modular mounting rack is provided with a plurality of groups of rectangular mounting grooves. A plurality of supporting assemblies capable of freely sliding left and right in the mounting groove are vertically arranged in the mounting groove, each supporting assembly comprises a supporting rod, the upper end and the lower end of each supporting rod are connected with sliding blocks, sliding grooves are formed in the upper end and the lower end of the mounting groove, and the supporting rods are slidably connected into the sliding grooves through the sliding blocks; multiple sets of first mounting threaded holes are formed in the front face of the supporting rod. According to the utility model, the width of the mounting module is adapted by adjusting the distance between the two groups of supporting assemblies, the cost of customizing a bracket or additional mounting equipment is avoided, and in addition, the design also saves the internal space of the control cabinet, so that the layout is more compact and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC control cabinets, in particular to an explosion-proof wiring shell of a PLC control cabinet. Background Art

[0002] PLC control cabinet explosion-proof wiring enclosure is a kind of enclosure designed to protect electrical equipment, especially PLC (Programmable Logic Controller) control cabinet. Its main purpose is to prevent sparks or overheated electrical components from causing fire or explosion in potentially explosive environments.

[0003] When using traditional housings, specific-sized brackets or mounting accessories are required to fix components, modules and other components inside the PLC control cabinet. These devices require additional costs and time to customize or install. When fixed with standard-sized brackets, they cannot adapt to modules of different sizes or shapes, increasing the complexity of installation.

[0004] To this end, we propose a PLC control cabinet explosion-proof wiring enclosure. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides an explosion-proof wiring shell for a PLC control cabinet.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PLC control cabinet explosion-proof wiring shell, including a control cabinet shell and a modular mounting frame installed on the rear side of the control cabinet shell, the modular mounting frame is a rectangular frame and the front of the modular mounting frame is provided with multiple groups of rectangular mounting grooves, and the interior of the mounting groove is vertically provided with multiple groups of support components that can slide freely left and right inside the mounting groove, the support component includes a support rod, the upper and lower ends of the support rod are connected to sliders, the upper and lower ends of the mounting groove are provided with slide grooves, the support rod is slidably connected to the interior of the slide groove through the slider, and the front of the support rod is provided with multiple groups of first mounting threaded holes.

[0007] Preferably, an expansion component is arranged on the front side of the support component, and the expansion component includes an expansion support rod, a countersunk threaded hole and a second mounting threaded hole. The expansion support rod is a vertically arranged rectangular long rod, and its length is greater than the length of the support component.

[0008] Preferably, the second mounting threaded hole is opened on the front side of the upper and lower ends of the expansion support rod, the second mounting threaded hole has the same specification as the first mounting threaded hole, and the countersunk threaded hole is opened in the middle of the front side of the expansion support rod.

[0009] Preferably, a wiring assembly for organizing the module circuits inside the control cabinet shell is provided on the front of the support assembly, and the wiring assembly includes a back panel, which is mounted on the front of the support assembly by screws, and a plurality of groups of parallel circuit installation grooves are vertically opened on the front of the back panel, and the circuit installation grooves are arc-shaped grooves and the width of the opening is smaller than the diameter of the arc.

[0010] Preferably, a limiting groove is transversely opened in the middle of the front side of the back plate, and a cover plate is connected to the middle of the limiting groove via a second fixing bolt, and the width of the cover plate is consistent with that of the limiting groove.

[0011] Preferably, four groups of angle irons are welded at the edges of the interior of the control cabinet housing corresponding to the modular mounting frame, and the modular mounting frame is fixed to the angle irons by first fixing bolts.

[0012] Beneficial Effects

[0013] The utility model provides an explosion-proof wiring housing for a PLC control cabinet. It has the following beneficial effects:

[0014] (1) In the explosion-proof wiring housing of a PLC control cabinet, two sets of support components are randomly selected at adjacent positions, and the distance between the two sets of support components is adjusted left and right to make them consistent with the width of the module to be installed. The long slot-shaped mounting hole of the module is aligned with the first mounting threaded hole on the support rod and then fixed with screws. The support rod with a movable connection method and multiple sets of first mounting threaded holes can adapt to modules of different lengths and widths, so that the module does not need to use a separate specific bracket when installing. All components inside the PLC control cabinet can be adapted and installed, reducing the complexity of the installation process. The width of the installed module is adapted by adjusting the distance between the two sets of support components, avoiding the cost of customizing brackets or additional installation equipment. In addition, this design also saves space inside the control cabinet, making the layout more compact and efficient.

[0015] (2) The explosion-proof wiring housing of a PLC control cabinet is configured such that after each group of modules on a modular mounting frame is installed, a group of wiring components is installed below the corresponding positions, and the cables of the modules are sequentially clamped inside the line installation grooves on the front of the back panel. The arc-shaped arrangement of the line installation grooves can directly clamp the cables, and the cover plate is rotated to a horizontal state so that it is placed inside the limit groove, and the cover plate is fixed by rotating the second fixing bolt. The cover plate squeezes the middle position of all cables to achieve secondary fixation to prevent the cables from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 It is a specific schematic diagram of the modular mounting frame of the utility model;

[0020] Figure 3 It is a specific schematic diagram of the support assembly of the utility model;

[0021] Figure 4 It is a specific schematic diagram of the expansion components of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation position of the wiring assembly of the utility model;

[0023] Figure 6 It is a specific schematic diagram of the wiring assembly of the utility model.

[0024] Legend:

[0025] 1. Control cabinet housing; 2. Modular mounting frame; 3. Mounting slot; 4. Slide slot; 5. Support assembly; 51. Support rod; 52. Slider; 53. First mounting threaded hole; 6. Angle iron; 7. First fixing bolt; 8. Extension assembly; 81. Extension support rod; 82. Countersunk threaded hole; 83. Second mounting threaded hole; 9. Wiring assembly; 91. Back panel; 92. Line mounting slot; 93. Limiting slot; 94. Cover plate; 95. Second fixing bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1: A PLC control cabinet explosion-proof wiring housing, such as Figure 1-Figure 3 As shown, it includes a control cabinet housing 1 and a modular mounting frame 2 installed on the rear side of the control cabinet housing 1. The modular mounting frame 2 is a rectangular frame and a plurality of rectangular mounting grooves 3 are provided on the front of the modular mounting frame 2. A plurality of support components 5 that can slide freely left and right inside the mounting groove 3 are vertically arranged inside the mounting groove 3. The support component 5 includes a support rod 51. The upper and lower ends of the support rod 51 are connected to a slider 52. The upper and lower ends of the mounting groove 3 are provided with a slide groove 4. The support rod 51 is slidably connected to the inside of the slide groove 4 through the slider 52. The front of the support rod 51 is provided with a plurality of first mounting threaded holes 53.

[0028] When in use, take any two groups of support components 5 in adjacent positions, move left and right to adjust the distance between the two groups of support components 5 to make them consistent with the width of the module to be installed, align the long slot-type mounting hole of the module with the first mounting threaded hole 53 on the support rod 51 and then fix them with screws, and set the support rod 51 with a movable connection method and open multiple groups of first mounting threaded holes 53 to adapt to modules of different lengths and widths, so that the module does not need to use a separate specific bracket when installing, and all components inside the PLC control cabinet can be adapted and installed, reducing the complexity of the installation process. By adjusting the distance between the two groups of support components 5 to adapt to the width of the installed module, the cost of customized brackets or additional installation equipment is avoided. In addition, this design also saves space inside the control cabinet, making the layout more compact and efficient.

[0029] Embodiment 2: Based on the above embodiment, Figure 4 As shown, an expansion component 8 is set on the front of the support component 5, and the expansion component 8 includes an expansion support rod 81, a countersunk threaded hole 82 and a second mounting threaded hole 83. The expansion support rod 81 is a vertically arranged rectangular long rod, and its length is greater than the length of the support component 5. The second mounting threaded hole 83 is opened on the front of the upper and lower ends of the expansion support rod 81. The second mounting threaded hole 83 has the same specifications as the first mounting threaded hole 53, and the countersunk threaded hole 82 is opened in the middle of the front of the expansion support rod 81.

[0030] When in use, screws are used to pass through the countersunk threaded holes 82 to fix the expansion support rod 81 to the front of the support component 5, and the long slot-shaped mounting hole of the module is aligned with the second mounting threaded hole 83 on the expansion support rod 81 and then fixed with screws. The expansion component 8 is used to fix modules whose length dimensions exceed the installation range of the support component 5, such as larger main control units, power supply units, and inverters. By setting the countersunk threaded holes 82, the screw protrusions can be prevented from affecting the installation of the module when the expansion component 8 is fixed to the support component 5.

[0031] Embodiment 3: Based on the above embodiment, Figure 5 as well as Figure 6 As shown, a wiring assembly 9 for organizing the module circuits inside the control cabinet housing 1 is provided on the front of the support assembly 5. The wiring assembly 9 includes a back plate 91, which is mounted on the front of the support assembly 5 by screws. A plurality of parallel circuit installation grooves 92 are vertically provided on the front of the back plate 91. The circuit installation grooves 92 are arc-shaped grooves and the width of the opening is smaller than the diameter of the arc. A limiting groove 93 is horizontally provided in the middle of the front of the back plate 91. A cover plate 94 is connected to the middle of the limiting groove 93 by a second fixing bolt 95. The width of the cover plate 94 is consistent with that of the limiting groove 93.

[0032] After installing each group of modules on the modular mounting frame 2, install a group of wiring components 9 below their corresponding positions, and clamp the cables of the modules in turn into the line installation groove 92 on the front of the back plate 91. The arc-shaped setting of the line installation groove 92 can directly clamp the cables, and the cover plate 94 is rotated to a horizontal state so that it is placed inside the limit groove 93, and the cover plate 94 is fixed by rotating the second fixing bolt 95. The cover plate 94 squeezes the middle position of all cables to achieve secondary fixation to prevent the cables from falling off.

[0033] Embodiment 4: Based on the above embodiment, Figure 2 As shown, four groups of angle irons 6 are welded at the edges of the control cabinet housing 1 corresponding to the modular mounting frame 2 , and the modular mounting frame 2 is fixed to the angle irons 6 by first fixing bolts 7 .

[0034] By setting the angle iron 6, a certain distance is created between the entire modular mounting frame 2 and the rear side of the control cabinet housing 1, so that a certain space is provided on the rear side of the components or modules inside the control cabinet housing 1 after installation, thereby increasing the contact area with the air and improving the heat dissipation efficiency.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A PLC control cabinet explosion-proof wiring housing, comprising a control cabinet housing (1) and a modular mounting frame (2) mounted on the rear side of the control cabinet housing (1), characterized in that: The modular mounting frame (2) is a rectangular frame and a plurality of rectangular mounting grooves (3) are provided on the front of the modular mounting frame (2). A plurality of support components (5) are vertically arranged inside the mounting grooves (3) and can slide freely left and right inside the mounting grooves (3). The support components (5) include a support rod (51). The upper and lower ends of the support rod (51) are both connected to a slider (52). A slide groove (4) is provided on the upper and lower ends of the mounting groove (3). The support rod (51) is slidably connected to the inside of the slide groove (4) through the slider (52). A plurality of first mounting threaded holes (53) are provided on the front of the support rod (51).

2. The explosion-proof wiring housing of a PLC control cabinet according to claim 1, characterized in that: An expansion assembly (8) is arranged on the front side of the support assembly (5), and the expansion assembly (8) comprises an expansion support rod (81), a countersunk threaded hole (82) and a second mounting threaded hole (83), and the expansion support rod (81) is a vertically arranged rectangular long rod, and its length is greater than the length of the support assembly (5).

3. The explosion-proof wiring housing of a PLC control cabinet according to claim 2, characterized in that: The second mounting threaded hole (83) is provided on the front side of the upper and lower ends of the expansion support rod (81), the second mounting threaded hole (83) has the same specifications as the first mounting threaded hole (53), and the countersunk threaded hole (82) is provided in the middle of the front side of the expansion support rod (81).

4. The explosion-proof wiring housing of a PLC control cabinet according to claim 1, characterized in that: The front of the support component (5) is provided with a wiring component (9) for arranging the module circuits inside the control cabinet housing (1), the wiring component (9) comprising a back plate (91), the back plate (91) being mounted on the front of the support component (5) by means of screws, the front of the back plate (91) being provided with a plurality of groups of parallel circuit installation grooves (92) vertically, the circuit installation grooves (92) being arc-shaped grooves and the width of the opening thereof being smaller than the diameter of the arc thereof.

5. The explosion-proof wiring housing of a PLC control cabinet according to claim 4, characterized in that: A limiting groove (93) is transversely provided in the middle of the front side of the back plate (91); a cover plate (94) is connected to the middle of the limiting groove (93) via a second fixing bolt (95); and the width of the cover plate (94) is consistent with that of the limiting groove (93).

6. The explosion-proof wiring housing of a PLC control cabinet according to claim 1, characterized in that: Four groups of angle irons (6) are welded inside the control cabinet housing (1) at the edges corresponding to the modular mounting frame (2), and the modular mounting frame (2) is fixed to the angle irons (6) by means of first fixing bolts (7).

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