Power distribution cabinet with drawer structure

Abstract

The utility model discloses a power distribution cabinet with a drawer structure, which belongs to the technical field of power distribution cabinets and comprises a power distribution cabinet and a plurality of drawers arranged in the power distribution cabinet, the drawers are in sliding connection with mounting grooves arranged on one side of the power distribution cabinet, and the power distribution cabinet with the drawer structure further comprises limiting parts arranged on the lower surfaces of the drawers. The limiting part is used for limiting the drawer in the mounting groove; and the control part is arranged in a bottom plate on the drawer, and the control part is used for relieving the limitation of the limiting part on the drawer. According to the utility model, the drawer can be mounted or dismounted by pulling the control part and pushing or drawing the drawer, the structure is relatively simple, the dismounting or mounting operation is simple and efficient, heat in all the mounting grooves in the power distribution cabinet can be transmitted out through the exhaust fan, and when electrical equipment in a single drawer is short-circuited and burnt, the electrical equipment in the drawer can be prevented from being burnt. The influence of high temperature on electrical equipment in other drawers is reduced, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with a drawer structure. Background Art

[0002] With the continuous development of electric power technology, traditional power distribution cabinets can no longer meet the relevant needs. Researchers have developed a new type of drawer-type power distribution cabinet, which has the advantages of small space occupation, high integration, high safety and closure, and has been gradually applied to the power industry. When the existing drawer-type power distribution cabinet is in use, a relatively complex limiter will be installed on the drawer inside it, so as to play a limit fixing effect when the drawer is opened or closed. One part of this type of limiter is a two-part structure of a child and a mother, and is installed on the power distribution cabinet and the drawer respectively. The child and the mother are locked with each other to achieve the limit fixation of the drawer. The other part is a side slide rail structure, and a locking part is installed on the side slide rail to achieve the limit fixation of the drawer. However, due to the complex structure of the limiter, it is necessary to punch holes, grooves and assemble on the accessory cabinet and the drawer. A small part of the structure also requires welding operations, which is cumbersome to operate and difficult to install. When a fault occurs, the difficulty of maintenance and replacement will also increase accordingly.

[0003] The existing patent application number: 202320735537.7 discloses a drawer-type power distribution cabinet. The device cooperates with a limit structure installed on the power distribution cabinet and a buffer plate installed on the drawer to prevent the drawer from falling off when it is pulled out as a whole, and can also be fixed and sealed when closed. In the above-mentioned prior art, the limit structure in the device is divided into two parts and is installed on the power distribution cabinet and the drawer respectively. It is also necessary to install a buffer plate on the drawer, and the above-mentioned technical problems still exist during assembly. Utility Model Content

[0004] The utility model aims to provide a power distribution cabinet with a drawer structure to solve the problems in the above-mentioned background technology that the structure of the limiter is relatively complex, the installation is difficult, and when a fault occurs, the difficulty of repair and replacement will also increase accordingly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a power distribution cabinet with a drawer structure, comprising a plurality of drawers arranged in the power distribution cabinet, wherein the drawers are slidably connected to mounting grooves arranged on one side of the power distribution cabinet, and the power distribution cabinet with a drawer structure further comprises:

[0007] A limiting portion is arranged on the lower surface of the drawer, and the limiting portion is used to limit the drawer in the installation groove.

[0008] The operating part is arranged in the bottom plate on the drawer, and is used for releasing the restriction of the limit part on the drawer.

[0009] The limiting part comprises:

[0010] A support shaft is rotatably connected to a storage groove arranged at the boundary of the lower surface of the drawer.

[0011] The limiting leg is fixed on the supporting shaft, and the bottom end of the limiting leg is slidably connected to the guide groove arranged on the lower surface of the inner wall of the installation groove, and the bottom of the limiting leg is clamped with the positioning groove arranged on the lower surface of the inner wall of the guide groove.

[0012] The torsion spring is rotatably mounted on the support shaft, and two ends of the torsion spring are respectively fixed on the support shaft and the inner wall of the receiving groove.

[0013] Furthermore, the limiting portion further includes:

[0014] The roller is rotatably connected to the wheel groove arranged at the bottom of the limiting leg, and the roller is used to reduce the friction resistance and wear between the limiting leg and the guide groove.

[0015] Furthermore, the control unit includes:

[0016] A pull rod passes through a limiting groove in a bottom plate on the drawer, and one end of the pull rod is slidably connected to a sliding groove on the limiting leg.

[0017] A pull head is fixed to the other end of the pull rod.

[0018] Furthermore, the power distribution cabinet of the drawer structure further includes:

[0019] An exhaust fan is fixed on the top of the power distribution cabinet, and the air inlet of the exhaust fan is connected to the interior of the highest installation slot, a heat dissipation slot is provided on the upper surface of the inner wall of the installation slot, and a vertical through slot for connecting two adjacent installation slots is provided between the two adjacent installation slots.

[0020] Furthermore, a handle is fixedly connected to one side wall of the drawer.

[0021] Furthermore, the lower surface of the inner wall of the positioning groove is an arc-shaped surface, the radius of the arc-shaped surface is greater than the radius of the rotation trajectory of the limiting leg, and the arc-shaped surface and the rotation trajectory of the limiting leg are not concentric.

[0022] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0023] 1. The utility model can complete the assembly between the drawer and the power distribution cabinet by installing most of the structure of the limit part at the bottom of the drawer, and opening a guide groove and a positioning groove in the installation groove, and then pushing the drawer into the installation groove. When disassembling, the drawer can be disassembled by pulling the control part and pulling the drawer. The structure is relatively simple, and the disassembly or installation operation is simple and efficient;

[0024] 2. The utility model uses an exhaust fan in conjunction with vertical through grooves and heat dissipation grooves respectively opened on the inner wall of the distribution cabinet and the upper surface of the inner wall of the installation groove. The exhaust fan can not only transport the heat in all the installation grooves in the distribution cabinet, but also reduce the impact of high temperature on electrical equipment in other drawers when short circuit and combustion occur in electrical equipment in a single drawer, thereby improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axonometric drawing of the utility model;

[0026] Figure 2 It is an axonometric drawing of the drawer in the utility model;

[0027] Figure 3 It is a partial cross-sectional view of the drawer in the utility model;

[0028] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0029] Figure 5 It is a partial cross-sectional view of the power distribution cabinet in the utility model;

[0030] Figure 6 It is an axonometric drawing of the power distribution cabinet in the utility model.

[0031] In the figure: 1. Drawer; 2. Vertical through slot; 3. Mounting slot; 4. Limiting part; 41. Support shaft; 42. Storage slot; 43. Limiting leg; 44. Guide slot; 45. Positioning slot; 46. Torsion spring; 47. Roller; 48. Wheel slot; 5. Control part; 51. Pull rod; 52. Limiting slot; 53. Slide slot; 54. Pull head; 6. Handle; 7. Exhaust fan; 8. Heat dissipation slot. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0033] like Figures 1 to 6 As shown, a power distribution cabinet with a drawer structure includes a plurality of drawers 1 arranged in the power distribution cabinet, the electrical equipment in the power distribution cabinet is located in the drawer 1, the drawer 1 is slidably connected to the mounting groove 3 arranged on one side of the power distribution cabinet, and the power distribution cabinet with a drawer structure also includes:

[0034] The limiting portion 4 is disposed on the lower surface of the drawer 1 , and the limiting portion 4 is used to limit the drawer 1 in the installation groove 3 .

[0035] The operating part 5 is arranged in the bottom plate of the drawer 1 , and is used for releasing the restriction of the limiting part 4 on the drawer 1 .

[0036] The limiting part 4 includes:

[0037] The support shaft 41 is rotatably connected to a storage groove 42 provided at the boundary of the lower surface of the drawer 1, and the inner wall of the storage groove 42 is a vertical surface on one side close to the back plate of the drawer (1).

[0038] The limiting leg 43 is fixed on the supporting shaft 41 , and the bottom end of the limiting leg 43 is slidably connected to the guide groove 44 provided on the lower surface of the inner wall of the mounting groove 3 , and the bottom of the limiting leg 43 is clamped with the positioning groove 45 provided on the lower surface of the inner wall of the guide groove 44 .

[0039] The torsion spring 46 is rotatably mounted on the support shaft 41, and the two ends of the torsion spring 46 are respectively fixed on the support shaft 41 and the inner wall of the receiving groove 42. Under the torsion force of the torsion spring 46, the initial state of the limit leg 43 is a vertical state, and one side wall of the limit leg 43 is attached to the vertical surface in the receiving groove 42, limiting the circumferential degree of freedom of the limit leg 43 so that it can only deflect 90°. During installation, the user pulls the operating part 5 to transform the limit leg 43 from a vertical state to a horizontal state. The drawer 1 is in a state and hidden in the storage groove 42, so that the drawer 1 can be installed in the installation groove 3. After the user pushes the drawer 1 completely into the installation groove 3, the operating part 5 is released. Under the torsion of the torsion spring 46, the limiting leg 43 is reset to a vertical state and drives the operating part 5 to retract and reset. At this time, the bottom end of the limiting leg 43 is inserted into the positioning groove 45 to fix the drawer 1 in the installation groove 3, thereby avoiding the drawer 1 from loosening in the installation groove 3 and affecting the normal operation of the electrical equipment in the drawer 1.

[0040] like Figures 2 to 4 As shown, in this embodiment, the limiting portion 4 also includes:

[0041] The roller 47 is rotatably connected to a wheel groove 48 provided at the bottom of the limiting leg 43 , and the roller 47 is used to reduce the friction resistance and wear between the limiting leg 43 and the guide groove 44 .

[0042] like Figures 2 to 4 As shown, in this embodiment, the control unit 5 includes:

[0043] The pull rod 51 passes through a limiting groove 52 provided in the bottom plate of the drawer 1 , and one end of the pull rod 51 is slidably connected to a sliding groove 53 provided on the limiting leg 43 .

[0044] The pull head 54 is fixed to the other end of the pull rod 51. Before installing, removing or pulling the drawer 1, the user needs to pinch the pull head 54 and pull it straight toward the outside of the distribution cabinet along the depth direction of the installation groove 3. The pull rod 51 can be used to pull the limit leg 43, so that the limit leg 43 deflects upward with the support shaft 41 as the deflection axis, and the deflection direction of the limit leg 43 is consistent with the pulling direction of the pull head 54, so that the limit leg 43 is hidden in the storage groove 42, so that the drawer 1 is installed in the installation groove 3, or the drawer 1 is removed from the installation groove 3, or the lock state of the drawer 1 in the installation groove 3 is released, which is convenient for the user to pull out the drawer 1 and maintain and repair the electrical equipment located inside it.

[0045] like Figure 1 , Figure 5 and Figure 6 As shown, in this embodiment, the power distribution cabinet with a drawer structure also includes:

[0046] The exhaust fan 7 is fixed on the top of the distribution cabinet, and the air inlet of the exhaust fan 7 is connected with the interior of the highest mounting groove 3. The upper surface of the inner wall of the mounting groove 3 is provided with a heat dissipation groove 9, and a vertical through groove 2 for connecting each other is provided between two adjacent mounting grooves 3. The electrical equipment located in the drawer 1 will generate a large amount of heat during operation, which will increase the temperature in the drawer 1. Due to the characteristic that hot air will rise, most of the hot air will gather at the top of the mounting groove 3. When the exhaust fan 7 is started, it will draw the air in the distribution cabinet away. Through the coordinated use of the vertical through groove 2 and the heat dissipation groove 9, the hot air gathered in the mounting groove 3 can be transported to the air inlet of the exhaust fan 7, so that the hot air in the distribution cabinet is timely and efficiently transported out, and the air with relatively low outside temperature enters the drawer 1 from the gap between the drawer 1 and the mounting groove 3, so as to realize heat exchange and cool the electrical equipment, thereby avoiding the problem of high-temperature burning of the electrical equipment.

[0047] like Figures 1 to 3 As shown, in this embodiment, a handle 6 is fixedly connected to one side wall of the drawer 1 to provide a fulcrum for the user when pulling out the drawer 1 .

[0048] like Figure 3 and Figure 4As shown, in this embodiment, the lower surface of the inner wall of the positioning groove 45 is an arc-shaped surface, the radius of the arc-shaped surface is larger than the radius of the rotation trajectory of the limiting leg 43, and the arc-shaped surface is not concentric with the rotation trajectory of the limiting leg 43, and the circle of the arc-shaped surface is directly above the circle of the rotation trajectory of the limiting leg 43. When the drawer 1 is almost completely pushed into the installation groove 3, since the radius of the arc-shaped surface is larger than the radius of the rotation trajectory of the limiting leg 43, the bottom end of the limiting leg 43 will enter the positioning groove 45 as the drawer 1 is pushed. Under the torsion of the torsion spring 46, the roller 47 will slide along the arc-shaped surface to the lowest end in the positioning groove 45. At this time, the limiting leg 43 is in a vertical state, and the limiting leg 43 is in a vertical state. One side wall of the positioning leg 43 is fitted on the vertical inner wall of the storage groove 42. Without pulling the operating part 5, the drawer 1 is pulled toward the outside of the distribution cabinet. The vertical surface in the storage groove 42 provides sufficient support for the limiting leg 43, so that it is firmly in the positioning groove 45, avoiding the drawer 1 from being loosened in the installation groove 3 due to external force, thereby improving the stability of the drawer 1 in the installation groove 3. Only by pulling the operating part 5 toward the outside of the distribution cabinet in advance and contacting the mutual restriction between the limiting leg 43 and the positioning groove 45, can the drawer 1 be opened. The operation is simple and convenient, and the limiting part 4 can be perfectly hidden inside the installation groove 3 to avoid it being exposed outside the distribution cabinet and affecting the aesthetics.

[0049] The above is only a preferred embodiment of the present invention. The parts not described in the present invention can be implemented by adopting or drawing on existing technologies. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in the technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A power distribution cabinet with a drawer structure, comprising a plurality of drawers (1) arranged in the power distribution cabinet, wherein the drawers (1) are slidably connected to a mounting groove (3) arranged on one side of the power distribution cabinet, and characterized in that: The power distribution cabinet of the drawer structure also includes: A limiting portion (4) is provided on the lower surface of the drawer (1), and the limiting portion (4) is used to limit the drawer (1) within the installation groove (3); A control part (5) is arranged in the bottom plate of the drawer (1), and the control part (5) is used to release the restriction of the limit part (4) on the drawer (1); The limiting portion (4) comprises: A support shaft (41) rotatably connected to a storage groove (42) provided at a boundary of the lower surface of the drawer (1); A limiting leg (43) is fixed on the support shaft (41), and the bottom end of the limiting leg (43) is slidably connected to a guide groove (44) provided on the lower surface of the inner wall of the installation groove (3), and the bottom of the limiting leg (43) is engaged with a positioning groove (45) provided on the lower surface of the inner wall of the guide groove (44); A torsion spring (46) is rotatably mounted on the support shaft (41), and two ends of the torsion spring (46) are respectively fixed on the support shaft (41) and on the inner wall of the receiving groove (42).

2. The power distribution cabinet with a drawer structure according to claim 1, characterized in that: The limiting portion (4) further comprises: The roller (47) is rotatably connected to a wheel groove (48) provided at the bottom of the limiting leg (43), and the roller (47) is used to reduce the friction resistance and wear between the limiting leg (43) and the guide groove (44).

3. The power distribution cabinet with a drawer structure according to claim 1, characterized in that: The control unit (5) comprises: A pull rod (51) passing through a limiting groove (52) provided in a bottom plate of the drawer (1), and one end of the pull rod (51) is slidably connected to a sliding groove (53) provided on the limiting leg (43); A pull head (54) is fixed to the other end of the pull rod (51).

4. The power distribution cabinet with a drawer structure according to claim 1, characterized in that: The power distribution cabinet of the drawer structure also includes: An exhaust fan (7) is fixed to the top of the power distribution cabinet, and an air inlet of the exhaust fan (7) is connected to the interior of the highest installation slot (3), a heat dissipation slot (9) is provided on the upper surface of the inner wall of the installation slot (3), and a vertical through slot (2) for connecting two adjacent installation slots (3) is provided between them.

5. The power distribution cabinet with a drawer structure according to claim 1, characterized in that: A handle (6) is fixedly connected to one side wall of the drawer (1).

6. The power distribution cabinet with a drawer structure according to claim 1, characterized in that: The lower surface of the inner wall of the positioning groove (45) is an arc-shaped surface, the radius of the arc-shaped surface is greater than the radius of the rotation trajectory of the limiting support leg (43), and the arc-shaped surface and the rotation trajectory of the limiting support leg (43) are not concentric.

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