Rail device for preventing switch cabinet handcart from toppling during transfer and maintenance

Abstract

The application discloses a guide rail device for preventing dumping in the transfer and maintenance process of a switch cabinet handcart, which comprises first guide rails and second guide rails arranged side by side, the first guide rails and the second guide rails are formed with wheel grooves, the notches of the two wheel grooves are arranged oppositely or oppositely, the bottom of the first guide rail and the second guide rail is provided with an adjusting groove, a connecting plate is slidably arranged in the adjusting groove, the connecting plate slides along the front, back, left and right of the adjusting groove, a bottom plate is arranged below the connecting plate, a guide column penetrating through the connecting plate is fixed on the bottom plate, a fastening nut is threadedly connected to the guide column above the connecting plate, a height adjusting piece is connected between the bottom plate and the adjusting groove, one end of the bottom plate is fixed with an L-shaped plate, and the upper end of the L-shaped plate is also provided with the height adjusting piece. Compared with the prior art, the guide rail device has the advantages of good anti-tilting and anti-rolling effects, good versatility, and convenient disassembly and assembly.

Description

Technical Field

[0001] This invention belongs to the field of anti-tipping guide rail technology, and particularly relates to a guide rail device for preventing tipping during the maintenance of switchgear trolleys. Background Technology

[0002] Indoor high-voltage metal-clad withdrawable switchgear (hereinafter referred to as "switchgear") has a wide range of applications and features a small footprint, compact layout, reduced risk of electric shock, and protection against environmental interference. However, it no longer meets the safety requirements of the power industry in terms of preventing personal injury during switching operations, especially in terms of measures to prevent tipping during the installation and maintenance of switchgear trolleys. Incidents of personal injury caused by switchgear trolleys tipping over during maintenance have already occurred, making it crucial to prevent tipping during this process. Taking the Pinggao Group Co., Ltd. KYN61-40.5 model of floor-mounted switchgear trolleys as an example, its floor-mounted switchgear trolley and guide rails... Figure 1 As shown, because the weight of the switchgear trolley is concentrated at the top, it is prone to tilting forward during the movement of the guide rail on the ramp, and there is no tilt protection on the left and right sides, which can easily lead to personal injury accidents.

[0003] Therefore, it is necessary to provide a new guide rail device to prevent tipping during the maintenance of switchgear trolleys and solve the above-mentioned technical problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by disclosing a guide rail device to prevent the switchgear trolley from tipping over during maintenance. This device can prevent the switchgear trolley from tipping over, ensuring the safety of operators at the work site. Furthermore, it has good versatility.

[0005] The technical solution adopted by this invention to solve its technical problem is: a guide rail device to prevent tipping during the maintenance of a switchgear trolley, comprising a first guide rail and a second guide rail arranged side by side, the first guide rail and the second guide rail forming wheel grooves, the groove openings of the two wheel grooves being arranged back to back or facing each other, the bottom of the first guide rail and the second guide rail being provided with an adjustment groove, a connecting plate being slidably arranged in the adjustment groove, the connecting plate sliding along the front, back and left and right of the adjustment groove, a base plate being provided below the connecting plate, a guide post passing through the connecting plate being fixed on the base plate, a fastening nut being threadedly connected to the guide post above the connecting plate, a height adjustment component being connected between the base plate and the adjustment groove, an L-shaped plate being fixed to one end of the base plate, and the height adjustment component being provided at the upper end of the L-shaped plate.

[0006] Preferably, the height adjustment component includes multiple pads of different thicknesses.

[0007] Preferably, the height adjustment component further includes two thickness adjustment plates, and the surfaces of the two thickness adjustment plates that come into contact with each other are inclined surfaces.

[0008] Preferably, the slope of the inclined surface of the thickness adjustment plate is 10-50 degrees.

[0009] Preferably, it also includes a fixing plate, which is slidably connected to the first guide rail and the second guide rail respectively.

[0010] Preferably, a buffer guide rail is hinged to the end of the first guide rail away from the adjustment groove, and a buffer guide rail is also hinged to the end of the second guide rail away from the adjustment groove.

[0011] Preferably, the width at the opening of the groove is smaller than the width at the bottom of the groove, the structure of the groove of the second guide rail is the same as the structure of the groove of the first guide rail, and the structure of the groove of the buffer guide rail is the same as the structure of the groove of the first guide rail.

[0012] Preferably, the first guide rail is divided into a horizontal section and a ramp section, the ramp section being located between the horizontal section and the buffer guide rail, and the structure of the second guide rail is the same as that of the first guide rail.

[0013] Preferably, the L-shaped plate is provided with a column, and a pressure plate is slidably disposed on the column.

[0014] Preferably, there are two guide posts, which are respectively located at both ends of the connecting plate.

[0015] Compared with existing technologies, this invention uses an L-shaped plate and height adjustment components to fix the buckle to the support leg or fixed beam. A connecting plate, guide post, and fastening nut are used to fix the guide rail and buckle together. Then, the wheel grooves work together to restrict the vertical movement of the handcart's rollers, effectively counteracting the forward and lateral tilting forces of the handcart. By allowing the connecting plate to slide along the width of the guide rail, the width of the first and second guide rails can be adjusted. By allowing the connecting plate to slide along the length of the guide rail, it can accommodate support legs or fixed beams of different distances. The height adjustment components allow for adjustment of the guide rail height to accommodate switchgear of different heights. The buckle design allows the switchgear to be fixed regardless of whether support legs or fixed beams are used. In summary, the guide rail device provided by this invention has excellent anti-forward and anti-lateral tilting properties, good versatility, and is easy to assemble and disassemble. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the guide rail device for preventing tipping during the maintenance of the switchgear trolley according to the present invention.

[0017] Figure 2 This is a top view of the guide rail device for preventing tipping during the maintenance of the switchgear trolley according to the present invention.

[0018] Figure 3 This is a front view of the guide rail device for preventing tipping during the maintenance of the switchgear trolley according to the present invention.

[0019] Figure 4 This is a schematic diagram of the height adjustment component of the present invention;

[0020] Figure 5 This is a schematic diagram of the snap fastener structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure for fixing the L-shaped plate and the support leg according to the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of fixing the L-shaped plate and the fixed beam according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. First guide rail, 2. Second guide rail, 3. Wheel groove, 4. Adjustment groove, 5. Connecting plate, 6. Base plate, 7. Guide column, 8. Fastening nut, 9. Height adjustment component, 100. L-shaped plate, 91. Pad plate, 92. Thickness adjustment plate, 921. Inclined surface, 200. Fixed plate, 300. Buffer guide rail, 11. Horizontal section, 12. Sloping section, 400. Column, 500. Pressure plate, 600. Roller, 700. Support leg, 800. Fixed beam, 900. Switch cabinet. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0026] The following is in conjunction with the appendix Figure 1-5Further description of the present invention: A guide rail device for preventing tipping during the maintenance of a switchgear trolley includes a first guide rail 1 and a second guide rail 2 arranged side by side. The first guide rail 1 and the second guide rail 2 form wheel grooves 3, with the groove openings of the two wheel grooves 3 facing away from each other or towards each other. In this embodiment, the groove openings of the wheel grooves 3 face outwards from the guide rails. The bottom of both the first guide rail 1 and the second guide rail 2 is provided with an adjusting groove 4. A connecting plate 5 is slidably disposed in the adjusting groove 4. The depth of the adjusting groove 4 is greater than the width of the connecting plate 5. The connecting plate 5 slides along the adjusting groove 4 in all directions. A base plate 6 is provided below the connecting plate 5. A guide post 7 passing through the connecting plate 5 is fixed on the base plate 6. A fastening nut 8 is threadedly connected to the guide post 7 above the connecting plate 5. A height adjusting component 9 connects the base plate 6 and the adjusting groove 4. An L-shaped plate 100 is fixed to one end of the base plate 6, and a height adjusting component 9 is also provided at the upper end of the L-shaped plate 100. The base plate 6, the L-shaped plate 100, and the height adjusting component 9 constitute a snap-fit ​​mechanism. (See attached diagram) Figure 6 and attached Figure 7 The L-shaped plate 100 engages with the support legs 700 or the fixed beam 800 of the switch cabinet 900, thereby counteracting the forward tilting force of the switch cabinet 900 trolley. The height adjustment component 9 and the L-shaped plate 100, fixed between the bottom of the switch cabinet 900 and the ground, effectively counteract the lateral tilting force of the switch cabinet 900 trolley. After the buckle is secured between the bottom of the switch cabinet 900 and the ground, the guide rail is aligned with the switch cabinet 900, and then the connecting plate 5 is slid in the adjustment groove 4, connecting the connecting plate 5 to the base plate 6 via the guide post 7. The reason for this structure is that the distance from the support legs 700 (or fixed beam 800) of the switch cabinet 900 to the cabinet edge (or guide rail) is not fixed, but the width of the L-shaped plate 100 is fixed; therefore, the connecting plate 5 needs to slide back and forth to align with the base plate 6. After the connecting plate 5 and the base plate 6 are connected together, a height adjustment component 9 is installed on the base plate 6 to support the adjustment groove 4, which in turn supports the guide rail. Then, the fastening nut 8 is tightened to fix the guide rail to the buckle. The buckle enables the guide rail to counteract the forward and lateral tilting forces of the switchgear 900 trolley. During the maintenance of the switchgear 900 trolley, due to the slope and the effect of gravity, the speed of movement increases and the inertia increases during the inclined movement of the guide rail. The force exerted by the switchgear 900 trolley on the operator increases. If the force exceeds the operator's tolerance, forward tilting will occur, which may result in injury to the operator or even death. The two wheel grooves 3 are arranged opposite each other, which not only prevents the switchgear 900 trolley rollers 600 from deviating from the movement track, but also restricts the rollers 600 by the upper and lower groove walls, allowing the guide rail to pass through the wheel grooves 3 and prevent the switchgear 900 trolley from tilting forward. Furthermore, since the guide rail is fixed between the bottom of the switch cabinet 900 and the ground by the buckle, the guide rail device of the present invention has a good effect of preventing left and right tilting and forward tilting.

[0027] See attached document Figure 5 The height adjustment component 9 includes multiple pads 91 of different thicknesses. By adjusting the height of the base plate 6 and the adjustment groove 4 with pads 91 of different thicknesses, guide rails of different heights can be obtained, thus adapting to most switch cabinets 900.

[0028] The height adjustment component 9 also includes two thickness adjustment plates 92, the contact surfaces of which are both inclined surfaces 921. This arrangement can better adjust the height between the base plate 6 and the adjustment groove 4.

[0029] The slope of the inclined surface 921 of the thickness adjustment plate 92 is 1. 0 -5 0 With a gentle slope, the stacked thickness adjustment plates 92 are less prone to relative movement.

[0030] This embodiment also includes fixing plates 200, which are slidably connected to the first guide rail 1 and the second guide rail 2 respectively. The fixing plates 200 improve the structural strength of the first guide rail 1 and the second guide rail 2 after fixation. Once fixed, the first guide rail 1 and the second guide rail 2 form a single unit, effectively counteracting the uneven lateral tilting force caused by manual operation and preventing the handcart from tilting when entering the ground. Specifically, the bottom of the first guide rail 1 is provided with a sliding groove, along which the fixing plates 200 slide. There are two fixing plates 200.

[0031] A buffer guide rail 300 is hinged to the end of the first guide rail 1 away from the adjustment groove 4, and a buffer guide rail 300 is also hinged to the end of the second guide rail 2 away from the adjustment groove 4. The buffer guide rail 300 can serve as a buffer against inertial forces when the handcart moves to a low position.

[0032] The support shaft of the roller 600 passes through the groove. The width of the groove opening of the wheel groove 3 is smaller than the width of the groove bottom to prevent the roller 600 from coming out of the groove opening. The structure of the wheel groove 3 of the second guide rail 2 is the same as the structure of the wheel groove 3 of the first guide rail 1, and the structure of the wheel groove 3 of the buffer guide rail 300 is the same as the structure of the wheel groove 3 of the first guide rail 1.

[0033] The first guide rail 1 is divided into a horizontal section 11 and a ramp section 12. The ramp section 12 is located between the horizontal section 11 and the buffer guide rail 300. The structure of the second guide rail 2 is the same as that of the first guide rail 1. The horizontal section 11 serves as a transition between the handcart and the ramp section 12.

[0034] The L-shaped plate 100 is provided with a column 400, and a pressure plate 500 is slidably mounted on the column 400. The pressure plate 500 is located above the height adjustment component 9 on the L-shaped plate 100. This arrangement allows for a better connection between the height adjustment component 9, the pressure plate 500, and the L-shaped plate 100, thereby improving the fixing effect of the buckle. Specifically, the column 400 passes through the L-shaped plate 100 and the pressure plate 500, which facilitates assembly and disassembly.

[0035] There are two guide posts 7, which are respectively located at both ends of the connecting plate 5.

[0036] Specifically, the length of the height adjustment component 9 is greater than the width of the first guide rail 1 (or the second guide rail 2).

[0037] The guide post 7 is a screw rod that passes through the base plate 6 and the connecting plate 5, which facilitates disassembly and assembly.

[0038] In this invention, the buckle is fixed to the support leg 700 or the fixed beam 800 by the L-shaped plate 100 and the height adjustment component 9. The guide rail and the buckle are fixed together by the connecting plate 5, the guide post 7, and the fastening nut 8. Then, the wheel groove 3 restricts the vertical movement of the handcart's rollers 600, thereby effectively counteracting the forward tilting and lateral tilting forces of the handcart. By setting the connecting plate 5 to slide along the width direction of the guide rail, the width of the first guide rail 1 and the second guide rail 2 can be adjusted. By setting the connecting plate 5 to slide along the length direction of the guide rail, it can accommodate support legs 700 or fixed beams 800 at different distances. By setting the height adjustment component 9, the height of the guide rail can be adjusted to accommodate switch cabinets 900 of different heights. The buckle allows the switch cabinet 900 to be fixed regardless of whether it uses support legs 700 or fixed beams 800. In summary, the guide rail device provided by this invention has good anti-forward and anti-lateral tilting effects, good versatility, and is easy to assemble and disassemble.

[0039] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A guide rail device for preventing tipping during the maintenance of a switchgear trolley, characterized in that, The system includes a first guide rail and a second guide rail arranged side by side. Both guide rails have wheel grooves, with the groove openings facing away from each other or towards each other. Each guide rail has an adjustment groove at its bottom, in which a connecting plate is slidably mounted. The connecting plate slides along the adjustment groove in all directions. A base plate is located below the connecting plate, and a guide post passing through the connecting plate is fixed to the base plate. A fastening nut is threaded onto the guide post above the connecting plate. A height adjustment component connects the base plate to the adjustment groove. One end of the first guide rail is fixed with an L-shaped plate, and the upper end of the L-shaped plate is also provided with the height adjustment component; the end of the first guide rail away from the adjustment groove is hinged with a buffer guide rail, and the end of the second guide rail away from the adjustment groove is also hinged with a buffer guide rail; the first guide rail is divided into a horizontal section and a ramp section, and the ramp section is located between the horizontal section and the buffer guide rail; the structure of the second guide rail is the same as that of the first guide rail; the height adjustment component includes multiple pads of different thicknesses; the height adjustment component also includes two thickness adjustment plates, and the contact surfaces of the two thickness adjustment plates are both inclined surfaces.

2. The guide rail device for preventing tipping during the maintenance of the switchgear trolley according to claim 1, characterized in that, The slope of the inclined surface of the thickness adjustment plate is 1. 0 -5 0 .

3. The guide rail device for preventing tipping during the maintenance of the switchgear trolley according to claim 1, characterized in that, It also includes a fixing plate, which is slidably connected to the first guide rail and the second guide rail respectively.

4. The guide rail device for preventing tipping during the maintenance of the switchgear trolley according to claim 3, characterized in that, The width at the opening of the groove is smaller than the width at the bottom. The structure of the groove of the second guide rail is the same as that of the groove of the first guide rail. The structure of the groove of the buffer guide rail is the same as that of the groove of the first guide rail.

5. The guide rail device for preventing tipping during the maintenance of the switchgear trolley according to claim 4, characterized in that, The L-shaped plate is provided with a column, and a pressure plate is slidably mounted on the column.

6. The guide rail device for preventing tipping during the maintenance of the switchgear trolley according to claim 5, characterized in that, There are two guide posts, which are respectively located at both ends of the connecting plate.

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