Pressure relief mechanism of low-voltage power distribution equipment

Abstract

The invention discloses a pressure relief mechanism for low-voltage power distribution equipment. The pressure relief mechanism comprises a power distribution cabinet, an active pressure relief assembly and an automatic pressure relief assembly, a through hole is formed in the upper end of the power distribution cabinet, an active pressure relief assembly is arranged at the upper end of the power distribution cabinet, the active pressure relief assembly comprises a pressure relief bin, rotating shafts and arc-shaped plates, the pressure relief bin is fixedly connected to the upper end of the through hole, the lower end of the pressure relief bin is rotationally connected with the uniformly distributed rotating shafts, and the arc-shaped plates are fixedly connected to the middles of the rotating shafts; the automatic pressure relief assembly is arranged at the rear end of the power distribution cabinet, a controller is arranged at the front end of the surface of the left side of the power distribution cabinet, the input end of the controller is electrically connected with an external power source, and the active pressure relief assembly further comprises a supporting plate, a driving shaft, a driving handle and a supporting column. Automatic and active pressure release of the power distribution cabinet can be realized through the active pressure release assembly and the automatic pressure release assembly, and the pressure release performance of the low-voltage power distribution equipment is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage power distribution equipment, and in particular to a pressure relief mechanism for low-voltage power distribution equipment. Background Art

[0002] The pressure relief mechanism of low-voltage power distribution equipment is an important component of low-voltage power distribution equipment. Its main function is to release the air pressure through a specific mechanism when the air pressure inside the equipment increases, so as to prevent the equipment from malfunctioning or being damaged due to excessive internal air pressure. Some existing low-voltage power distribution equipment pressure relief mechanisms use a single pressure relief valve to achieve the pressure relief work of the low-voltage power distribution equipment. This type of low-voltage power distribution equipment pressure relief mechanism has some problems. For example, the single pressure relief valve method limits the pressure relief performance of the low-voltage power distribution equipment, and it is not easy to achieve pressure control inside the low-voltage power distribution equipment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a pressure relief mechanism for low-voltage power distribution equipment, which can realize automatic and active pressure release of the distribution cabinet through active pressure relief components and automatic pressure relief components, greatly improving the pressure relief performance of the low-voltage power distribution equipment and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a pressure relief mechanism for low-voltage power distribution equipment, comprising a power distribution cabinet, an active pressure relief component and an automatic pressure relief component; Power distribution cabinet: a through hole is provided at the upper end thereof, an active pressure relief assembly is provided at the upper end of the power distribution cabinet, and the active pressure relief assembly comprises a pressure relief chamber, a rotating shaft and an arc plate, the pressure relief chamber is fixedly connected to the upper end of the through hole, the lower end of the pressure relief chamber is rotatably connected to the rotating shafts evenly distributed, and the middle part of the rotating shaft is fixedly connected to the arc plate; Automatic pressure relief component: It is installed at the rear end of the distribution cabinet. It can realize automatic and active pressure release of the distribution cabinet through active pressure relief components and automatic pressure relief components, which greatly improves the pressure relief performance of low-voltage distribution equipment.

[0005] Furthermore, a controller is provided at the front end of the left side surface of the power distribution cabinet, and an input end of the controller is electrically connected to an external power supply to control various electrical appliances.

[0006] Furthermore, the active pressure relief assembly also includes a support plate, a drive shaft, a drive handle and a pillar. The support plates are fixedly connected to the upper end of the rotating shaft, the drive shaft is rotatably connected to the middle of the pressure relief chamber, the middle part of the drive shaft is fixedly connected to the drive handle, and the interior of the drive handle is provided with evenly distributed sliding openings. The upper ends of the support plates are fixedly connected to the pillars, and the middle parts of the pillars are slidably connected to the laterally adjacent sliding openings, thereby providing driving force for the synchronous rotation of the arc plate.

[0007] Furthermore, the active pressure relief component also includes a motor, which is arranged at the upper end of the drive compartment, the lower end of the motor output shaft is fixedly connected to the upper end of the drive shaft, and the input end of the motor is electrically connected to the output end of the controller to provide driving force for the rotation of the drive shaft.

[0008] Furthermore, the automatic pressure relief assembly includes a pressure relief port, a slide groove and a closing plate. The pressure relief port is arranged at the rear end of the distribution cabinet. The interior of the pressure relief port is provided with evenly distributed slide grooves. The interior of the slide grooves is slidably connected with closing plates. The ends of the four closing plates close to the center of the pressure relief port are tightly fitted to realize the opening and closing of the pressure relief port.

[0009] Furthermore, the automatic pressure relief assembly also includes a spring, which is symmetrically fixed between the slide groove and the laterally adjacent closing plate. The front end of the closing plate is provided with a conical arc surface to facilitate the centering movement of the closing plate under pressure and provide a driving force for the resetting of the closing plate.

[0010] Furthermore, the top wall of the power distribution cabinet is provided with symmetrically distributed pressure sensors, and the pressure sensors are all electrically connected to the output end of the controller to realize pressure monitoring inside the power distribution cabinet.

[0011] Furthermore, an internal thread is provided inside the through hole, the internal thread of the internal thread is connected to a threaded barrel, and the upper and lower ends of the threaded barrel are fixedly connected to metal microporous plates, thereby improving the explosion-proof performance of the low-voltage power distribution equipment.

[0012] Furthermore, a transverse plate is fixedly connected to the inside of the power distribution cabinet, and a symmetrically distributed compartment door is hinged at the front end of the power distribution cabinet through hinges, so that personnel can easily install low-voltage power equipment.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the pressure relief mechanism of the low-voltage power distribution equipment has the following advantages: 1. The motor drives the driving handle to rotate, and then the six support plates are rotated at the same time, finally realizing the synchronous rotation of the six arc plates, realizing the control of the opening and closing state of the pressure relief chamber, and cooperating with the pressure sensor to accurately perform the active pressure relief work of the distribution cabinet, greatly improving the pressure relief performance of the low-voltage distribution equipment.

[0014] 2. The pressure acts on the conical arc surface, thereby realizing the centrifugal movement of the four closing plates. At the same time, the elastic force of the spring reacts on the closing plate to realize the automatic resetting of the closing plate, thereby realizing the change of the opening and closing state of the pressure relief port following the pressure change, realizing the automatic pressure relief work of the distribution cabinet, and further improving the pressure relief performance of the low-voltage distribution equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2It is a schematic diagram of the cross-sectional structure inside the present invention; Figure 3 It is a cross-sectional structural schematic diagram of the rear side of the present invention; Figure 4 This is an enlarged structural schematic diagram of location A of the present invention; Figure 5 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0016] In the figure: 1 distribution cabinet, 2 active pressure relief component, 21 pressure relief bin, 22 rotating shaft, 23 arc plate, 24 support plate, 25 driving shaft, 26 driving handle, 27 pillar, 28 motor, 3 automatic pressure relief component, 31 pressure relief port, 32 slide groove, 33 closing plate, 34 spring, 4 pressure sensor, 5 bin door, 6 controller, 7 horizontal plate, 8 internal thread, 9 threaded cylinder, 10 metal microporous plate. DETAILED DESCRIPTION

[0017] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-5 , This embodiment provides a technical solution: a pressure relief mechanism for low-voltage power distribution equipment, including a power distribution cabinet 1, an active pressure relief component 2 and an automatic pressure relief component 3; Power distribution cabinet 1: A through hole is provided at its upper end, a controller 6 is provided at the front end of the left surface of the power distribution cabinet 1, the input end of the controller 6 is electrically connected to the external power supply, and an active pressure relief component 2 is provided at the upper end of the power distribution cabinet 1. The active pressure relief component 2 includes a pressure relief chamber 21, a rotating shaft 22 and an arc plate 23. The pressure relief chamber 21 is fixedly connected to the upper end of the through hole, and the lower end of the pressure relief chamber 21 is rotatably connected to the evenly distributed rotating shaft 22, and the middle part of the rotating shaft 22 is fixedly connected to the arc plate 23. The active pressure relief component 2 also includes a support plate 24, a driving shaft 25, a driving handle 26 and a pillar 27. The support plates 24 are fixedly connected to the upper end of the rotating shaft 22, and the driving shaft 25 is rotatably connected to the middle part of the pressure relief chamber 21. The middle part of the driving shaft 25 is fixedly connected to the driving handle 26, and the interior of the driving handle 26 is provided with evenly distributed sliding ports, and the upper ends of the support plates 24 are fixedly connected to the pillars 27, and the middle parts of the pillars 27 slide with the laterally adjacent sliding ports. The active pressure relief component 2 also includes a motor 28, which is arranged at the upper end of the driving bin 21, and the lower end of the output shaft of the motor 28 is fixedly connected to the upper end of the driving shaft 25, and the input end of the motor 28 is electrically connected to the output end of the controller 6. When the pressure inside the power distribution cabinet 1 reaches a certain value, the controller 6 realizes the operation of the motor 28, and the output shaft of the motor 28 rotates to drive the driving shaft 25 to rotate, and the driving shaft 25 rotates to drive the driving handle 26 to rotate, and the driving handle 26 rotates to move the support plate 24 through the pillar 27, so that the support plates 24 rotate at the same time, and at the same time, the pillars 27 slide inside the corresponding sliding mouths, and the rotation of the support plate 24 drives the vertically adjacent rotating shaft 22 to rotate, and the rotation of the rotating shaft 22 drives the vertically adjacent arc plate 23 to rotate, and the arc plate 23 rotates outward around the central axis of the vertically adjacent rotating shaft 22, so as to realize the opening of the pressure relief bin 21, and then realize the active release of the internal pressure of the power distribution cabinet 1; Automatic pressure relief component 3: It is arranged at the rear end of the power distribution cabinet 1. The automatic pressure relief component 3 includes a pressure relief port 31, a slide groove 32 and a closing plate 33. The pressure relief port 31 is arranged at the rear end of the power distribution cabinet 1. The interior of the pressure relief port 31 is provided with evenly distributed slide grooves 32. The interior of the slide grooves 32 is slidably connected with closing plates 33. The ends of the four closing plates 33 close to the center of the pressure relief port 31 are tightly fitted. The automatic pressure relief component 3 also includes a spring 34. The springs 34 are symmetrically fixedly connected between the slide grooves 32 and the laterally adjacent closing plates 33. The front ends of the closing plates 33 are provided with conical arc surfaces. When the internal pressure of the power distribution cabinet 1 rises, the pressure acts The conical arc surface allows the four closing plates 33 to slide in the corresponding sliding grooves 32 in the direction away from the center of the pressure relief port 31, so that the springs 34 are elastically compressed, and the four closing plates 33 move in the direction away from the center of the pressure relief port 31, so as to open the pressure relief port 31 and automatically release the pressure. At the same time, when the pressure is released to a certain extent, the elastic force of the spring reacts on the closing plates 33, and the closing plates 33 move in the corresponding sliding grooves 32 in the direction close to the center of the pressure relief port 31, so as to automatically reset the closing plates 33 and close the pressure relief port 31, thereby realizing the change of the opening and closing state of the pressure relief port 31 following the pressure change. Among them: the top wall of the power distribution cabinet 1 is provided with symmetrically distributed pressure sensors 4, and the pressure sensors 4 are all electrically connected to the output end of the controller 6. The pressure sensors 4 are operated through the controller 6. The pressure sensors 4 monitor the pressure inside the power distribution cabinet 1 in real time, and send the monitored pressure information to the signal receiving end of the controller 6 in real time; Among them: the inside of the through hole is provided with an internal thread 8, the internal thread of the internal thread 8 is connected with a threaded barrel 9, the upper and lower ends of the threaded barrel 9 are fixedly connected with a metal microporous plate 10, and the threaded barrel 9 is threadedly connected to the lower end of the through hole, thereby realizing the installation of the metal microporous plate 10 and realizing the explosion-proof work of the power distribution cabinet 1; Wherein: a transverse plate 7 is fixedly connected inside the power distribution cabinet 1, and a symmetrically distributed compartment door 5 is hinged at the front end of the power distribution cabinet 1 through a hinge.

[0019] The working principle of a pressure relief mechanism for low-voltage power distribution equipment provided by the present invention is as follows: during operation, personnel first place the distribution cabinet 1, the pressure relief chamber 21 and other mechanisms stably in a horizontal working area. After the placement is stable, personnel thread the threaded tube 9 into the lower end of the through hole, thereby realizing the installation of the metal microporous plate 10, realizing the explosion-proof work of the distribution cabinet 1, and realizing the operation of the pressure sensor 4 through the controller 6. The pressure sensor 4 monitors the pressure inside the distribution cabinet 1 in real time, and sends the monitored pressure information to the signal receiving end of the controller 6 in real time. When the pressure inside the distribution cabinet 1 reaches a certain value, the controller 6 realizes the operation of the motor 28, and the output shaft of the motor 28 rotates to drive the drive shaft 25 to rotate, and the rotation of the drive shaft 25 drives the drive handle 26 to rotate. The rotation of the drive handle 26 drives the support plate 24 through the pillar 27, so that the support plates 24 rotate at the same time, and at the same time, the pillars 27 slide inside the corresponding sliding openings, and the rotation of the support plates 24 drives the vertical corresponding The adjacent rotating shaft 22 rotates, and the rotation of the rotating shaft 22 drives the vertically adjacent arc-shaped plates 23 to rotate. The arc-shaped plates 23 rotate outward around the central axis of the vertically adjacent rotating shaft 22, thereby opening the pressure relief chamber 21, and then actively releasing the internal pressure of the distribution cabinet 1. At the same time, when the internal pressure of the distribution cabinet 1 rises, the pressure acts on the conical arc surface, so that the four closing plates 33 slide in the corresponding sliding grooves 32 in the direction away from the center of the pressure relief port 31, so that the springs 34 are elastically compressed, and the four closing plates 33 move in the direction away from the center of the pressure relief port 31, thereby opening the pressure relief port 31 and automatically releasing the pressure. At the same time, when the pressure is released to a certain extent, the elastic force of the spring reacts on the closing plates 33, and the closing plates 33 move in the corresponding sliding grooves 32 in the direction close to the center of the pressure relief port 31, thereby automatically resetting the closing plates 33 and closing the pressure relief port 31, thereby changing the opening and closing state of the pressure relief port 31 following the pressure change.

[0020] It is worth noting that the pressure sensor 4 disclosed in the above embodiment can be a QBE2002-P1 pressure sensor, and the controller 6 controls the motor 28 and the pressure sensor 4 to work using methods commonly used in the prior art.

[0021] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pressure relief mechanism for low voltage power distribution equipment, characterized in that: It comprises a power distribution cabinet (1), an active pressure relief component (2) and an automatic pressure relief component (3); A power distribution cabinet (1): a through hole is provided at the upper end thereof, an active pressure relief assembly (2) is provided at the upper end of the power distribution cabinet (1), the active pressure relief assembly (2) comprising a pressure relief chamber (21), a rotating shaft (22) and an arc-shaped plate (23), the pressure relief chamber (21) being fixedly connected to the upper end of the through hole, the lower end of the pressure relief chamber (21) being rotatably connected to the rotating shafts (22) which are evenly distributed, and the middle of the rotating shafts (22) being fixedly connected to the arc-shaped plates (23); Automatic pressure relief component (3): it is arranged at the rear end of the power distribution cabinet (1).

2. A pressure relief mechanism for low-voltage power distribution equipment according to claim 1, characterized in that: A controller (6) is provided at the front end of the left side surface of the power distribution cabinet (1), and an input end of the controller (6) is electrically connected to an external power supply.

3. A pressure relief mechanism for low-voltage power distribution equipment according to claim 2, characterized in that: The active pressure relief assembly (2) further comprises a support plate (24), a drive shaft (25), a drive handle (26) and a support column (27); the support plate (24) is fixedly connected to the upper end of the rotating shaft (22); the drive shaft (25) is rotatably connected to the middle of the pressure relief chamber (21); the middle of the drive shaft (25) is fixedly connected to the drive handle (26); the interior of the drive handle (26) is provided with evenly distributed sliding openings; the upper end of the support plate (24) is fixedly connected to the support column (27); the middle of the support column (27) is slidably connected to a laterally adjacent sliding opening.

4. A pressure relief mechanism for low-voltage power distribution equipment according to claim 3, characterized in that: The active pressure relief assembly (2) further comprises a motor (28), wherein the motor (28) is arranged at the upper end of the drive chamber (21), the lower end of the output shaft of the motor (28) is fixedly connected to the upper end of the drive shaft (25), and the input end of the motor (28) is electrically connected to the output end of the controller (6).

5. A pressure relief mechanism for low-voltage power distribution equipment according to claim 1, characterized in that: The automatic pressure relief assembly (3) comprises a pressure relief port (31), a slide groove (32) and a closing plate (33); the pressure relief port (31) is arranged at the rear end of the power distribution cabinet (1); the interior of the pressure relief port (31) is provided with evenly distributed slide grooves (32); the interior of the slide grooves (32) are all slidably connected with closing plates (33); and the ends of the four closing plates (33) close to the center of the pressure relief port (31) are tightly fitted.

6. A pressure relief mechanism for low-voltage power distribution equipment according to claim 5, characterized in that: The automatic pressure relief assembly (3) further comprises a spring (34), wherein the springs (34) are symmetrically fixedly connected between the slide groove (32) and a laterally adjacent closing plate (33), and the front end of the closing plate (33) is provided with a conical arc surface.

7. A pressure relief mechanism for low-voltage power distribution equipment according to claim 2, characterized in that: The top wall of the power distribution cabinet (1) is provided with symmetrically distributed pressure sensors (4), and the pressure sensors (4) are all electrically connected to the output ends of the controller (6).

8. A pressure relief mechanism for low-voltage power distribution equipment according to claim 1, characterized in that: An internal thread (8) is provided inside the through hole, the internal thread of the internal thread (8) is connected to a threaded barrel (9), and the upper and lower ends of the threaded barrel (9) are fixedly connected to a metal microporous plate (10).

9. A pressure relief mechanism for low-voltage power distribution equipment according to claim 1, characterized in that: A transverse plate (7) is fixedly connected to the inside of the power distribution cabinet (1), and symmetrically distributed compartment doors (5) are hingedly connected to the front end of the power distribution cabinet (1) via hinges.

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