A safety protection mechanism for a switchgear cabinet and a switchgear cabinet

Abstract

The present invention provides a switch cabinet safety protection mechanism and a switch cabinet, comprising a top support base plate, at least one pair of side rods abutting against the side walls of the switch cabinet body are fixed on both sides of the top support base plate, a longitudinal sliding block slidably connected to the switch cabinet body is fixed on the inner side of the side rod, and a compression spring is arranged in the longitudinal sliding groove; a connecting hole is arranged at the bottom end of the side rod, a group of cross rods are inserted and connected in the two groups of side rod connecting holes, and the cross rods cross and abut against the bottom side of the switch cabinet body; a group of guide columns are inserted in the center of the top support base plate, a group of lifting rings are fixed on the top of the guide columns, and a shielding shed for shielding above the switch cabinet body is fixed on the outer side thereof, a connecting plate is fixed at the bottom end of the guide column, and a plurality of connecting rods are evenly hinged on the periphery of the connecting plate, and a group of sliding blocks are hinged on the end of each group of connecting rods. The present invention has a simple structure, not only has a detachable installation effect, but also is relatively convenient for disassembly and maintenance, and can also adapt to suspended transportation, and ensures higher transportation stability and safety.

Description

Technical Field

[0001] The present invention relates to a switchgear cabinet, in particular to a safety protection mechanism and a switchgear cabinet for a switchgear cabinet. Background Art

[0002] The main function of the switchgear cabinet is to open, close, control and protect electrical equipment during the processes of power generation, power transmission, power distribution and power conversion in the power system. The components inside the switchgear cabinet mainly include circuit breakers, disconnectors, load switches, operating mechanisms, instrument transformers and various protection devices, etc. There are many classification methods for switchgear cabinets. For example, according to the installation method of the circuit breaker, it can be divided into withdrawable switchgear cabinets and fixed switchgear cabinets; or according to the different cabinet body structures, it can be divided into open switchgear cabinets, metal enclosed switchgear cabinets and metal enclosed armored switchgear cabinets; according to different voltage levels, it can be divided into high-voltage switchgear cabinets, medium-voltage switchgear cabinets and low-voltage switchgear cabinets, etc. It is mainly applicable to various different occasions such as power plants, substations, petrochemical industries, metallurgical rolling mills, light industry and textile industries, factories and mines, residential communities, high-rise buildings, etc.

[0003] In order to improve the safety effect during the handling and movement process of the existing switchgear cabinet, as well as the wind and rain protection effect during its use process, it is often necessary to install a safety protection mechanism outside the cabinet body of the switchgear cabinet. However, the existing safety protection mechanisms generally need to be fixedly installed outside the cabinet body, so disassembly, replacement and maintenance are very inconvenient. And in order to achieve the wind and rain protection effect, it is mostly necessary to install a shielding shed on the top of the cabinet body. However, the installation of the shielding shed will also increase the difficulty of handling and transporting the switchgear cabinet, especially the hoisting and transporting.

[0004] Therefore, there is an urgent need for a switchgear cabinet safety protection mechanism and a switchgear cabinet with a simple structure, which not only has a detachable installation effect, but also is relatively convenient for disassembly, replacement and maintenance. At the same time, it can also adapt to suspension transportation and ensure higher transportation stability and safety. Summary of the Invention

[0005] The purpose of the present invention is to provide a switchgear cabinet safety protection mechanism and a switchgear cabinet with a simple structure, which not only has a detachable installation effect, but also is relatively convenient for disassembly, replacement and maintenance. At the same time, it can also adapt to suspension transportation and ensure higher transportation stability and safety.

[0006] The present invention provides the following technical solutions:

[0007] A switch cabinet safety protection mechanism and a switch cabinet, comprising a top support base plate located above the switch cabinet body, at least one pair of side bars abutting against the side walls of the switch cabinet body are fixed on both sides of the top support base plate, a group of longitudinal slide blocks are fixed on the inner sides of two groups of side bars arranged in pairs and facing each other, a longitudinal slide groove slidably connected to the longitudinal slide block is provided on the side wall of the switch cabinet body, and a compression spring for driving the longitudinal slide block upward is provided in the longitudinal slide groove; a connecting hole is provided at the bottom end of the side bar, and a group of cross bars are inserted and connected in the two groups of side bar connecting holes arranged in pairs, and the cross bars span the abutment against the side walls. Connected to the bottom side of the switch cabinet body; a group of guide columns are passed through the center of the top support base plate, a group of lifting rings are fixed to the top of the guide columns, and a shielding shed for shielding the switch cabinet body is fixed to the outside thereof, and a connecting plate is fixed to the bottom end of the guide column, and a plurality of connecting rods are evenly hinged on the periphery of the connecting plate, and a group of sliding blocks are hinged at the end of each group of connecting rods, and the sliding blocks are slidably connected to the top support base plate, and when the guide column is lifted by the lifting ring, they slide radially along the connecting plate, and a buffer pad for elastically abutting against the bottom side of the top support base plate is also laid and fixed on the connecting rod.

[0008] Preferably, a raised reinforcement portion is provided on the side wall of the switch cabinet body, a longitudinal slide groove is opened in the raised reinforcement portion, the longitudinal slider is clamped and limited in the longitudinal slide groove, and one side thereof is fixedly connected to the side rod through a neck block extending out of the longitudinal slide groove.

[0009] Preferably, the top end of the compression spring is fixed in the longitudinal slide groove, and the bottom end of the compression spring is connected to the longitudinal slide block, and is used to pull the side rod upward through the longitudinal slide block.

[0010] Preferably, the top end of the longitudinal slide groove passes through the raised reinforcement portion, and the bottom end of the compression spring is fixed in the longitudinal slide groove, with the top end of the compression spring pushing against the bottom side of the longitudinal sliding block.

[0011] Preferably, one end of the cross bar is provided with a fixing block limited in position on one group of side bars, and the other end is provided with a nut block threadedly limited in position on another group of side bars.

[0012] Preferably, two groups of pins are provided at the end of the connecting rod, and sleeves that are sleeved and matched with the pins are provided around the sliding block and the connecting plate.

[0013] Preferably, the buffer pad is a buffer pad having a right-angled triangle in longitudinal section, and one right-angled side thereof abuts against the bottom side of the supporting substrate.

[0014] Preferably, an adjusting screw head is also provided on the top of the switch cabinet body, and the adjusting screw head includes a screw threadedly connected to the switch cabinet body and an adjusting disk connected to the top of the screw, and the adjusting disk is used to abut against the bottom side of the connection disk.

[0015] A switch cabinet comprises any one of the switch cabinet safety protection mechanisms described above.

[0016] Preferably, multiple groups of heat dissipation holes are also provided on the top side of the cabinet body of the switch cabinet.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. By providing a top support substrate and a pair of side rods fixed on the top support substrate, and at the same time, the side rods are slidably connected to the side walls of the cabinet body, and their bottoms are connected by a cross bar that spans across the bottom of the cabinet body. This structure can not only achieve the quick disassembly and assembly between the cross bar and the side rods, but also provide bottom support for the switch cabinet when lifting it, thereby improving the stability of the switch cabinet during handling during the lifting movement, and also overcoming the risk of pulling and deforming the side walls of the switch cabinet body caused by only point contact lifting in traditional lifting.

[0019] 2. Since the structure part of the lifting rod includes a set of guide posts passing through the center of the top support substrate, a connection disk fixed at the bottom of the guide posts, connecting rods evenly hinged around the connection disk, and sliding blocks hinged at the ends of the connecting rods, it is possible to evenly disperse the point-contact lifting to multiple connecting rod parts. That is, during lifting, the lifting force that should originally be applied to the top support substrate in a point-contact manner is evenly dispersed through the buffer pads provided on the connecting rods. For the buffer pads close to the center of the top support substrate, they are set to contact with the thick triangular right-angle corner parts. When the buffer pads are compressed and deformed, they can still play a shock-absorbing and buffering effect. Therefore, the overall structure is not only easy to disassemble and assemble from the switch cabinet body, but also can provide a shielding and protection effect for the fixed switch cabinet body. At the same time, it can also have better stability and safety effects during lifting and handling. Moreover, for the buffer pad structure that is prone to lifting deformation, even if it is deformed, the effect of dispersing the lifting force remains unchanged, thus greatly improving the practical effect of the overall structure. Description of the Drawings

[0020] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0021] Figure 1 is a structural cross-sectional view of the present invention;

[0022] Figure 2 is a bottom view of the top support substrate;

[0023] Figure 3 is a top view of the side rod;

[0024] Figure 4 is a structural cross-sectional view of the present invention when the top through protrusion strengthening part of the longitudinal sliding groove;

[0025] Figure 5 is a structural cross-sectional view of the present invention provided with an adjusting screw head and heat dissipation holes;

[0026] Markings in the figure: 1 is the switch cabinet body, 2 is the top support base plate, 3 is the side rod, 4 is the longitudinal slider, 5 is the longitudinal slide groove, 6 is the compression spring, 7 is the cross bar, 8 is the guide column, 9 is the lifting ring, 10 is the shielding shed, 11 is the connecting plate, 12 is the connecting rod, 13 is the sliding block, 14 is the buffer pad, 15 is the raised reinforcement part, 16 is the fixing block, 17 is the nut block, 18 is the pin shaft, 19 is the fixing seat, 20 is the adjusting screw head, and 21 is the heat dissipation hole. DETAILED DESCRIPTION

[0027] Example 1

[0028] Combination Figures 1 to 3 A switch cabinet safety protection mechanism shown in the figure, in this embodiment, includes a top support base plate 2 located above the switch cabinet body 1, three pairs of side rods 3 abutting against the side walls of the switch cabinet body 1 are fixed on both sides of the top support base plate 2, a group of longitudinal slide blocks 4 are fixed on the inner sides of two groups of side rods 3 arranged in pairs and facing each other, and a longitudinal slide groove 5 slidably connected to the longitudinal slide block 4 is opened on the side wall of the switch cabinet body 1, and a compression spring 6 for driving the longitudinal slide block 4 upward is arranged in the longitudinal slide groove 5; a connecting hole is arranged at the bottom end of the side rod 3, and a group of cross rods 7 are inserted and connected in the connecting holes of the two groups of side rods 3 arranged in pairs, and the cross rod 7 crosses and abuts against the bottom side of the switch cabinet body 1; a group of A guide column 8, a group of lifting rings 9 are fixed on the top of the guide column 8, and a shielding shed 10 for shielding the switch cabinet body 1 is fixed on the outside thereof. A connecting plate 11 is fixed to the bottom end of the guide column 8, and multiple groups of connecting rods 12 are evenly hinged around the periphery of the connecting plate 11. A group of sliding blocks 13 are hinged at the end of each group of connecting rods 12. The sliding blocks 13 are slidably connected to the top support base plate 2, and when the guide column 8 is lifted by the lifting rings 9, they slide radially along the connecting plate 11. A buffer pad 14 for elastically abutting against the bottom side of the top support base plate 2 is also laid and fixed on the connecting rod 12. At the same time, four groups of fixing seats 19 distributed in a rectangular shape are arranged at the bottom of the switch cabinet body 1 to facilitate the fixation of the switch cabinet body.

[0029] A raised reinforcement portion 15 is provided on the side wall of the switch cabinet body 1, and a longitudinal slide groove 5 is provided in the raised reinforcement portion 15. The longitudinal slider 4 is clamped and limited in the longitudinal slide groove 5, and one side thereof is fixedly connected to the side rod 3 through a neck block extending out of the longitudinal slide groove 5.

[0030] The top end of the compression spring 6 is fixed in the longitudinal slide groove 5 , and the bottom end of the compression spring 6 is connected to the longitudinal slide block 4 , and is used to pull the side rod 3 upward through the longitudinal slide block 4 .

[0031] One end of the cross bar 7 is provided with a fixing block 16 limitedly positioned on one group of side bars 3 , and the other end is threadedly provided with a nut block 17 limitedly positioned on another group of side bars 3 .

[0032] Two sets of pin shafts 18 are provided at the end of the connecting rod 12, and bushings sleeved and matched with the pin shafts 18 are provided on the peripheries of the sliding block 13 and the connecting plate 11.

[0033] The buffer pad 14 is a buffer pad 14 with a right-angled triangle in longitudinal section, and one of its right-angled sides abuts against the bottom side of the top support base plate 2.

[0034] A switch cabinet includes the switch cabinet safety protection mechanism described above.

[0035] Embodiment 2

[0036] See Figure 4 A switch cabinet safety protection mechanism as shown. In this embodiment, the difference from Embodiment 1 is that the top end of the longitudinal chute 5 penetrates through the convex strengthening part 15, the bottom end of the compression spring 6 is fixed in the longitudinal chute 5, and its top end pushes against the bottom side of the longitudinal slider 4. Therefore, only a part of the side wall of the switch cabinet body needs to be thickened to set the longitudinal chute, and it is not necessary to thicken the entire side wall, which greatly saves materials and reduces the weight of the cabinet body.

[0037] Embodiment 3

[0038] See Figure 4 A switch cabinet safety protection mechanism as shown. In this embodiment, the difference from Embodiment 1 is that an adjusting screw head 20 is further provided at the top of the cabinet body of the switch cabinet body 1. The adjusting screw head 20 includes a screw rod threadedly connected in the switch cabinet body 1 and an adjusting disc connected to the top end of the screw rod. The adjusting disc is used to abut and limit against the bottom side of the connecting plate 11. Therefore, when the switch cabinet is in a fixed state, the adjusting screw head can be screwed to abut and limit against the bottom side of the connecting plate 11, so that it pushes the connecting plate to rise until the buffer pad is pressed tightly against the bottom side of the top support base plate, to prevent the guide post and the shielding shed from shaking, and at the same time assist the driving thrust of the compression spring, which can further strengthen the pressing force of the cross bar against the bottom side of the cabinet body, thereby strengthening the stability when the overall structure is fixed.

[0039] Embodiment 4

[0040] See Figure 4 A switch cabinet safety protection mechanism as shown. In this embodiment, the difference from Embodiment 1 is that in order to improve the heat dissipation effect inside the switch cabinet body, a plurality of groups of heat dissipation holes 21 are further opened on the top side of the cabinet body of the switch cabinet body 1. Since the positions of the heat dissipation holes are below the shielding shed, there is no risk of water seepage.

[0041] The working principle of the present invention is as follows: The present invention is provided with a top support substrate 2 and a pair of side rods 3 fixed on the top support substrate 2. At the same time, the side rods 3 are slidably connected to the side wall of the cabinet body, and their bottoms are connected by a group of cross rods 7. The cross rods 7 span across the bottom of the cabinet body. This structure can not only achieve the quick disassembly and assembly between the cross rods 7 and the side rods 3, but also provide bottom support for the switch cabinet when lifting the switch cabinet, so as to improve the stability of the switch cabinet during lifting and transportation, and also overcome the risk of pulling and deforming the side wall of the switch cabinet body caused by only point-contact lifting in traditional lifting.

[0042] Since the hoisting rod structure part includes a group of guide posts 8 passing through the center of the top support substrate 2, a connecting disk 11 fixed at the bottom of the guide posts 8, a connecting rod 12 evenly hinged around the periphery of the connecting disk 11, and a sliding block 13 hinged at the end of the connecting rod 12, the point-contact hoisting can be evenly distributed to multiple connecting rod 12 parts. That is, during hoisting, the hoisting tension that should originally be in point contact with the top support substrate 2 is evenly distributed through the buffer pads 14 provided on the connecting rod 12. For the buffer pads 14 close to the center of the top support substrate 2, the triangular right-angle corner parts with a thicker thickness are set to be in contact. When the buffer pads 14 are compressed and deformed, they can still play a shock-absorbing and buffering effect. Therefore, the overall structure is not only easy to disassemble and assemble from the switch cabinet body 1, but also can play a shielding and protective effect on the fixed switch cabinet body 1. At the same time, it can also have better stability and safety effects during hoisting and transportation. For the buffer pad 14 structure that is prone to hoisting deformation, even if it is deformed, the effect of dispersing the hoisting force remains unchanged, thus greatly improving the practical effect of the overall structure.

[0043] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety protection mechanism for a switchgear cabinet, characterized in that, It comprises a top support base plate located above the switch cabinet body, at least one pair of side bars abutting against the side wall of the switch cabinet body are fixed on both sides of the top support base plate, a group of longitudinal slide blocks are fixed on the inner sides of two groups of side bars arranged in pairs and facing each other, a longitudinal slide groove slidably connected to the longitudinal slide block is opened on the side wall of the switch cabinet body, and a compression spring for driving the longitudinal slide block upward is arranged in the longitudinal slide groove; The bottom end of the side rod is provided with a connection hole, and a group of cross bars are inserted and connected in two groups of side rod connection holes arranged in pairs, and the cross bars cross over and abut against the bottom side of the switch cabinet body; A group of guide columns are passed through the center of the top support base plate, a group of lifting rings are fixed to the top of the guide columns, and a shielding shed for shielding the switch cabinet body is fixed on the outer side thereof, and a connecting plate is fixed to the bottom end of the guide column, and a plurality of connecting rods are evenly hinged on the periphery of the connecting plate, and a group of sliding blocks are hinged at the end of each group of connecting rods, and the sliding blocks are slidably connected to the top support base plate, and when the guide column is lifted by the lifting ring, they slide radially along the connecting plate, and a buffer pad for elastically abutting against the bottom side of the top support base plate is also laid and fixed on the connecting rod.

2. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 1, characterized in that, A raised reinforcement portion is provided on the side wall of the switch cabinet body, the longitudinal slide groove is opened in the raised reinforcement portion, the longitudinal slider is clamped and limited in the longitudinal slide groove, and one side thereof is fixedly connected to the side rod through a neck block extending out of the longitudinal slide groove.

3. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 2, characterized in that, The top end of the compression spring is fixed in the longitudinal slide groove, and the bottom end of the compression spring is connected to the longitudinal slide block, and is used to pull the side rod upward through the longitudinal slide block.

4. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 2, characterized in that, The top end of the longitudinal slide groove passes through the raised reinforcement portion, the bottom end of the compression spring is fixed in the longitudinal slide groove, and the top end thereof pushes against the bottom side of the longitudinal sliding block.

5. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 1, characterized in that, One end of the cross bar is provided with a fixed block limitedly positioned on one group of side bars, and the other end is threadedly provided with a nut block limitedly positioned on another group of side bars.

6. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 1, characterized in that, Two groups of pins are arranged at the end of the connecting rod, and shaft sleeves which are sleeve-fitted with the pins are arranged at the peripheries of the sliding block and the connecting disk.

7. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 6, characterized in that, The buffer pad is a buffer pad with a longitudinal section in the shape of a right-angled triangle, and one right-angled side thereof abuts against the bottom side of the top supporting substrate.

8. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 7, characterized in that, The top of the switch cabinet body is also provided with an adjusting screw head, which includes a screw rod threadedly connected to the switch cabinet body and an adjusting disk connected to the top of the screw rod, and the adjusting disk is used to abut and limit the bottom side of the connecting disk.

9. A switchgear cabinet, characterized in that, The invention comprises a switch cabinet safety protection mechanism as described in any one of claims 1 to 8.

10. The safety protection mechanism for a switchgear cabinet and the switchgear cabinet according to claim 9, characterized in that, The top side of the switch cabinet body is also provided with a plurality of heat dissipation holes.

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