Maintenance frame for electric power maintenance

Abstract

The invention discloses an overhaul frame for power maintenance, which comprises a bottom plate, a hinge rod mounted at the upper end of the bottom plate, a motor arranged on one side of the hinge rod and used for driving the hinge rod to expand through a screw rod, a bearing table arranged at the upper end of the hinge rod and used for carrying people, and an expansion unit, the amplification assembly is arranged on the outer side of the bearing table and used for enlarging the working space of the upper surface of the bearing table, and the positioning assembly is arranged at the upper end of the bearing table and used for positioning the amplification assembly. The supporting and adjusting unit comprises a supporting assembly arranged in the bottom plate and used for expanding the bottom surface of the bottom plate, and a telescopic assembly arranged between the supporting assembly and the amplification assembly and used for synchronously driving the supporting assembly to extend in the amplification process of the amplification assembly. The two first supporting rods synchronously moving along with the side extending plate are arranged on the side of the bottom plate, the second supporting rod synchronously moving along with the end extending plate is arranged at the end of the bottom plate, and the overall stability of the overhaul stand is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power repair, in particular to an inspection frame for electric power maintenance. Background Art

[0002] In the field of power equipment maintenance, especially for the inspection and repair of power generation and power supply equipment, stability and safety are of vital importance. The inspection rack commonly used for power supply equipment is usually of a liftable type. Before maintenance, the maintenance personnel first place the inspection rack under the power supply equipment, and then stand on the inspection platform and control the inspection platform to lift upward so that the maintenance personnel are lifted to a height suitable for the power supply equipment.

[0003] However, during the use of the inspection rack for power maintenance in the prior art, the support platform of the inspection rack is usually of a fixed size, and the space on the support platform is limited. When some larger power supply equipment is being repaired, it is necessary to repeatedly raise and lower the inspection platform and repeatedly adjust the placement of the inspection platform, which affects work efficiency. If a maintenance rack with a larger support area is directly used at this time, due to the limited peripheral space of the power supply equipment, the larger inspection rack is prone to collide with other power supply equipment during the lifting process along the periphery of the power supply equipment. In addition, the bottom area of ​​the existing inspection rack is of a fixed size, and it is not possible to automatically adjust the support surface at the bottom of the inspection rack while adjusting the working space on the upper part of the support platform, and the stability is poor.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The object of the present invention is to provide an inspection rack for power maintenance to solve the problem that the space of the supporting platform in the prior art proposed in the above background technology is limited. When inspecting some larger power supply equipment, it is necessary to repeatedly raise and lower the inspection rack and repeatedly adjust the placement of the inspection rack, which affects work efficiency. In addition, the bottom area of ​​the existing inspection rack is of fixed size, and it is impossible to automatically adjust the supporting surface at the bottom of the inspection rack while adjusting the working space on the upper part of the supporting platform, resulting in poor stability.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An inspection frame for electric power maintenance includes a base plate, a hinged rod installed on the upper end of the base plate, a motor provided on one side of the hinged rod for driving the hinged rod to expand and contract through a spiral rod, a carrying platform provided on the upper end of the hinged rod for carrying people, and further includes:

[0008] The expansion unit includes an amplification component disposed on the outer side of the carrier platform for increasing the working space on the upper surface of the carrier platform, and a positioning component disposed on the upper end of the carrier platform for positioning the amplification component;

[0009] The support adjustment unit includes a support component arranged inside the bottom plate for expanding the bottom surface of the bottom plate, and a telescopic component arranged between the support component and the amplification component for synchronously driving the support component to extend during the amplification process of the amplification component.

[0010] Further, the amplification component includes:

[0011] An end amplification mechanism is provided at two ends of the carrying platform and is used to extend along the two ends of the carrying platform to amplify the working space at the two ends of the carrying platform;

[0012] The side amplification mechanism is arranged on both sides of the support platform and is used to extend along both sides of the support platform to expand the working space on both sides of the support platform. The side amplification mechanism is located above the end amplification mechanism.

[0013] Furthermore, the side amplification mechanism includes:

[0014] The side extension plates are provided in two groups and are respectively slidably inserted into the sides of the bearing platform. The outer sides of the side extension plates and the inner sides of the bearing platform are provided with upper retreat grooves;

[0015] A second push-pull rod, fixedly connected to the upper end of the side extension plate, for adjusting the position of the side extension plate, a first guide groove for guiding the movement of the second push-pull rod is provided outside the second push-pull rod and inside the bearing platform;

[0016] A second guardrail is fixedly connected to the upper end of the side extension plate near the side, and is used to protect the staff on the upper part of the supporting platform;

[0017] The second rack is fixedly connected to the lower end of the side extension plate and is located inside the bearing platform.

[0018] Furthermore, the end amplification mechanism includes:

[0019] The end extension plates are provided in two groups and are respectively slidably plugged into the ends of the bearing platform. The outer sides of the end extension plates and the inner sides of the bearing platform are provided with lower retreat grooves;

[0020] A first guardrail, fixedly connected to the upper end of the end extension plate near the end, for protecting the staff on the upper part of the load-bearing platform;

[0021] A first push-pull rod, fixedly connected to the upper end of the end extension plate, used for adjusting the position of the end extension plate, a second guide groove for guiding the movement of the first push-pull rod is provided outside the first push-pull rod and inside the bearing platform, and the first push-pull rod is located between the two groups of side extension plates;

[0022] The first rack is fixedly connected to the lower end of the end extension plate.

[0023] Furthermore, the positioning component includes:

[0024] The fixing frame is provided with four groups, which are respectively arranged corresponding to the second push rods corresponding to the two groups of the side extension plates and the first push rods corresponding to the two groups of the end extension plates, and the fixing frame is provided with a third retreat groove inside;

[0025] A sliding rod, slidably inserted into the third retreat groove;

[0026] A plurality of spacer rods are provided at equal intervals and fixedly connected to the side of the slide rod for positioning the first push rod or the second push rod. A third guide groove for guiding the movement of the spacer rod is provided outside the spacer rod and inside the fixed frame;

[0027] A third push-pull rod, fixedly connected to a side of the slide rod opposite to the spacing rod, and used for pulling the slide rod;

[0028] A reset spring is slidably sleeved on the outside of the third push-pull rod and located inside the third retreat groove, and is used for resetting the slide rod.

[0029] Furthermore, the telescopic assembly is provided with four groups, which are respectively arranged corresponding to the end amplification mechanism and the side amplification mechanism, including:

[0030] A lower bearing frame, fixedly connected to the upper end of the bottom plate near the edge, and a through hole is provided at the upper end of the lower bearing frame;

[0031] An upper bearing frame is fixedly connected to the lower end of the bearing platform near the edge, and a through hole is provided at the lower end of the upper bearing frame;

[0032] A first square rod is rotatably connected to the interior of the lower bearing frame, and a first round shaft portion matching the inner diameter of the through hole in the lower bearing frame is provided on the outer side of the first square rod, and is used for cooperating with the lower bearing frame to limit the first square rod;

[0033] A first square groove, disposed inside the first square rod;

[0034] A second square rod is slidably inserted in the first square groove, and a first limiting block is fixedly connected to the lower end of the second square rod for limiting the second square rod in the first square groove;

[0035] A second square groove is provided inside the second square rod;

[0036] A third-party rod is slidably inserted in the second square groove, a second limit block is fixedly connected to the lower end of the second square rod, and is used to limit the third-party rod in the second square groove, and a second round shaft portion is provided on the outer side of the third-party rod, and the second round shaft portion is rotatably connected to the through hole of the upper carrier frame;

[0037] A first gear, fixedly connected to the upper end of the third rod and meshing with the amplification component;

[0038] The second gear is fixedly connected to the lower end of the first square rod and meshed with the supporting assembly.

[0039] Furthermore, the cross-sections of the second limit block and the second square groove are both square, so as to drive the second square rod to rotate when the third rod rotates;

[0040] The cross-sections of the first limiting block and the first square groove are both square, and are used to drive the first square rod to rotate when the second square rod rotates.

[0041] Furthermore, the support assembly includes:

[0042] The side support mechanism is provided with two groups, which are respectively slidably plugged into the sides of the bottom plate, and are used to synchronously adjust the support range of the sides of the bottom plate when the side extension plates move;

[0043] The end support mechanism is provided with two groups, which are respectively slidably plugged into the end of the bottom plate and are used to synchronously adjust the support range of the end of the bottom plate when the end extension plate moves.

[0044] Furthermore, the side support mechanism comprises:

[0045] A connecting rod is located at one side of the bottom plate, the upper end of the connecting rod is fixedly connected to a third rack meshing with the lower part of the telescopic assembly, and a third accommodating groove is provided outside the third rack and inside the bottom plate;

[0046] A first support rod is fixedly connected to both ends of the connecting rod, and a second accommodating groove for accommodating the first support rod is provided outside the first support rod and inside the bottom plate.

[0047] Furthermore, the end support mechanism comprises:

[0048] A second support rod is slidably inserted into the bottom plate, a first receiving groove is provided outside the second support rod and inside the bottom plate, and the second support rod is T-shaped;

[0049] A fourth rack is fixedly connected to the upper end of the second support rod, and the fourth rack is meshed with the lower part of the telescopic assembly.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] 1. The present invention pulls the third push-pull rod at the end that needs to be extended, and the third push-pull rod drives the sliding rod to move along the third retreat groove, and the sliding rod drives the spacing rod to separate from the first push-pull rod. At this time, the first push-pull rod is pushed, and the first push-pull rod drives the end extension plate to move outward along the lower retreat groove, so that the end extension plate drives the first guardrail to move outward. When the end extension plate is adjusted to a suitable position, the third push-pull rod is released, and the sliding rod drives the spacing rod to reset under the elastic force of the reset spring, so that the adjusted first push-pull rod is positioned again. At this time, the maintenance personnel can stand on the upper end of the end extension plate to inspect the internal area of ​​the power supply equipment that was previously difficult to inspect, thereby achieving the effect of increasing the working space at the end of the maintenance platform according to actual needs.

[0052] 2. The present invention pulls the third push-pull rod on the side that needs to be extended, and the third push-pull rod drives the sliding rod to move along the third retreat groove, and the sliding rod drives the spacing rod to separate from the second push-pull rod. At this time, the second push-pull rod is pushed, and the second push-pull rod drives the side extension plate to move outward along the upper retreat groove, so that the side extension plate drives the second guardrail to move outward. When the side extension plate is adjusted to a suitable position, the third push-pull rod is released, and the sliding rod drives the spacing rod to reset under the elastic force of the reset spring, so that the adjusted second push-pull rod is positioned again. At this time, the maintenance personnel can stand on the upper end of the side extension plate to inspect the internal area of ​​the power supply equipment that was previously difficult to inspect, thereby achieving the effect of increasing the working space of the side of the maintenance platform according to actual needs, avoiding the need to repeatedly go up and down the maintenance platform to adjust the placement position of the maintenance platform during the maintenance process, and the maintenance efficiency is high.

[0053] 3. In the present invention, during the outward extension process of the end extension plate, the end extension plate drives the second gear to rotate through the first rack, the second gear rotates through the third rod, the third rod drives the second square rod to rotate through the second limit block, the second square rod drives the first square rod to rotate through the second limit block, the first square rod drives the fourth rack to move outward along the first accommodating groove through the first gear, and the fourth rack drives the second support rod to move, so that the actual supporting range of the end of the base plate is increased, the stability of the end of the maintenance platform is improved, and the maintenance platform is prevented from tipping over when the maintenance personnel stand on the extended end extension plate.

[0054] 4. In the present invention, during the outward extension process of the side extension plate, the side extension plate drives the second gear to rotate through the second rack, the second gear rotates through the third rod, the third rod drives the second square rod to rotate through the second limit block, the second square rod drives the first square rod to rotate through the first limit block, the first square rod drives the third rack to move outward along the third accommodating groove through the first gear, and the third rack drives the first support rod to move outward along the second accommodating groove through the connecting rod, so that the supporting range of the side of the bottom plate is increased, which prevents the maintenance platform from tipping over when the maintenance personnel stand on the extended side extension plate, thereby improving the stability of the side of the maintenance platform.

[0055] 5. The present invention provides a retractable telescopic component, which can be flexibly extended and retracted when the spiral rod drives the supporting platform to rise. After the supporting platform stops rising, the cross-sections of the second limit block and the second square groove inside the telescopic component are set to be square, and the cross-sections of the first limit block and the first square groove are set to be square. This ensures that the base plate can synchronously increase its support range with the ground while the expansion unit is expanded without affecting the lifting of the supporting platform, and can be adaptively adjusted according to the area to be expanded, with high overall flexibility.

[0056] 6. The present invention further improves the overall stability of the inspection platform by arranging two first support rods on the sides of the bottom plate that move synchronously with the side extension plates, and arranging a second support rod at the end of the bottom plate that moves synchronously with the end extension plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0058] Figure 2 A diagram showing the coordination relationship between the telescopic component and the amplification component of the present invention;

[0059] Figure 3 This is a schematic diagram of the internal structure of the telescopic assembly of the present invention;

[0060] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0061] Figure 5 This is a schematic diagram of the internal structure of the positioning component of the present invention;

[0062] Figure 6 It is a schematic diagram of the internal structure of the carrier platform of the present invention;

[0063] Figure 7 This is a motion state diagram of the side amplification mechanism of the present invention;

[0064] Figure 8 This is a diagram showing the coordination relationship between the side amplification mechanism and the telescopic assembly of the present invention;

[0065] Fig. 9 is a diagram showing the matching relationship between the first rack and the second gear of the present invention;

[0066] Fig.10 It is a diagram showing the matching relationship between the end extension plate and the lower retreat groove of the present invention;

[0067] Fig.11 is a diagram showing the matching relationship between the second gear and the first rack of the present invention;

[0068] Fig.12 This is a schematic diagram of the support assembly structure of the present invention;

[0069] Fig.13 This is a diagram showing the coordination relationship between the side support mechanism and the end support mechanism of the present invention.

[0070] 100, bottom plate; 1001, first receiving slot; 1002, second receiving slot; 1003, third receiving slot; 101, motor; 102, screw rod; 103, push block; 104, hinged rod; 105, guide rod; 106, bearing platform; 1061, upper retreat slot; 1062, lower retreat slot; 1063, first guide slot; 1064, second guide slot; 1, expansion unit; 11, amplification component; 111, end amplification mechanism; 1111, end extension plate; 1112, first guardrail; 1113, first push-pull rod; 1114, first rack; 112, side amplification mechanism; 1121, side extension plate; 1122, second push-pull rod; 1123, second guardrail; 1124, second rack; 12, positioning component; 121, fixing frame; 1211, first 1. third recess groove; 1212. third guide groove; 122. slide bar; 123. third push-pull rod; 124. return spring; 125. spacer rod; 2. support adjustment unit; 21. telescopic assembly; 211. first gear; 212. first square rod; 2121. first circular shaft portion; 2122. first square groove; 213. second square rod; 2131. first limit block; 2132. second square groove; 214. third rod; 2141. second limit block; 2142. second circular shaft portion; 215. second gear; 216. lower bearing frame; 217. upper bearing frame; 22. support assembly; 221. side support mechanism; 2211. connecting rod; 2212. first support rod; 2213. third rack; 222. end support mechanism; 2221. second support rod; 2222. fourth rack. DETAILED DESCRIPTION

[0071] 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.

[0072] See also Figure 1-13 , the present invention provides a technical solution:

[0073] An inspection frame for electric power maintenance includes a base plate 100, a hinged rod 104 installed on the upper end of the base plate 100, a motor 101 provided on one side of the hinged rod 104 for driving the hinged rod 104 to expand and contract through a spiral rod 102, a carrying platform 106 provided on the upper end of the hinged rod 104 for carrying people, and further includes:

[0074] The expansion unit 1 includes an amplification component 11 disposed outside the carrier 106 for increasing the working space on the upper surface of the carrier 106 , and a positioning component 12 disposed on the upper end of the carrier 106 for positioning the amplification component 11 ;

[0075] The support adjustment unit 2 includes a support component 22 arranged inside the base plate 100 for expanding the bottom surface of the base plate 100, and a telescopic component 21 arranged between the support component 22 and the amplification component 11 for synchronously driving the support component 22 to extend during the amplification process of the amplification component 11.

[0076] It should be supplemented that one end of the lower part of the hinged rod 104 is hinged with a push block 103, and the push block 103 is internally threaded with a spiral rod 102, one end of the spiral rod 102 is connected to the motor 101, and the push block 103 is internally slidably inserted with a guide rod 105 for guiding the movement of the push block 103, and the guide rod 105 is installed at the upper end of the base plate 100.

[0077] As an improvement, Figure 1-2 As shown, the amplification component 11 includes:

[0078] The end amplification mechanism 111 is disposed at both ends of the carrier platform 106 and is used to extend along both ends of the carrier platform 106 to amplify the working space at both ends of the carrier platform 106;

[0079] The side amplification mechanism 112 is disposed on both sides of the support platform 106 and is used to extend along both sides of the support platform 106 to amplify the working space on both sides of the support platform 106 . The side amplification mechanism 112 is located above the end amplification mechanism 111 .

[0080] Further, such as Figure 7-9As shown, the side amplification mechanism 112 includes:

[0081] There are two sets of side extension plates 1121, which are respectively slidably inserted into the sides of the bearing platform 106, and upper retreat grooves 1061 are provided on the outer sides of the side extension plates 1121 and inside the bearing platform 106;

[0082] A second push-pull rod 1122 is fixedly connected to the upper end of the side extension plate 1121 and is used to adjust the position of the side extension plate 1121. A first guide groove 1063 is provided outside the second push-pull rod 1122 and inside the bearing platform 106 to guide the movement of the second push-pull rod 1122;

[0083] A second guardrail 1123 is fixedly connected to the upper end of the side extension plate 1121 near the side, and is used to protect the staff on the upper part of the supporting platform 106;

[0084] The second rack 1124 is fixedly connected to the lower end of the side extension plate 1121 and is located inside the supporting platform 106 .

[0085] Furthermore, Figure 10-11 As shown, the end amplification mechanism 111 includes:

[0086] The end extension plates 1111 are provided in two groups, and are respectively slidably inserted into the ends of the bearing platform 106. The outer side of the end extension plates 1111 and the inner side of the bearing platform 106 are provided with lower retreat grooves 1062;

[0087] A first guardrail 1112, fixedly connected to the upper end of the end extension plate 1111 near the end, for protecting the staff on the upper part of the carrying platform 106;

[0088] A first push-pull rod 1113 is fixedly connected to the upper end of the end extension plate 1111 and is used to adjust the position of the end extension plate 1111. A second guide groove 1064 is provided outside the first push-pull rod 1113 and inside the bearing platform 106 to guide the movement of the first push-pull rod 1113. The first push-pull rod 1113 is located between the two sets of side extension plates 1121.

[0089] The first rack 1114 is fixedly connected to the lower end of the end extension plate 1111 .

[0090] Among them, Figure 5 As shown, the positioning component 12 includes:

[0091] The fixing frame 121 is provided with four groups, which are respectively arranged corresponding to the second push rods corresponding to the two groups of the side extension plates 1121 and the first push rods corresponding to the two groups of the end extension plates 1111. The fixing frame 121 is provided with a third retreat groove 1211 inside.

[0092] The sliding rod 122 is slidably inserted in the third retreat groove 1211;

[0093] A plurality of spacing rods 125 are provided at equal intervals and fixedly connected to the side of the slide rod 122 for positioning the first push rod or the second push rod. A third guide groove 1212 for guiding the movement of the spacing rod 125 is provided outside the spacing rod 125 and inside the fixing frame 121;

[0094] A third push-pull rod 123, fixedly connected to the side of the slide rod 122 opposite to the spacer rod 125, for pulling the slide rod 122;

[0095] The reset spring 124 is slidably sleeved on the outside of the third push-pull rod 123 and located inside the third retreat groove 1211 , and is used for resetting the slide rod 122 .

[0096] As an improvement, Figure 2-4 As shown, the telescopic assembly 21 is provided with four groups, which are respectively arranged corresponding to the end amplification mechanism 111 and the side amplification mechanism 112, including:

[0097] A lower support frame 216 is fixedly connected to the upper end of the bottom plate 100 near the edge, and a through hole is provided at the upper end of the lower support frame 216;

[0098] An upper carrier 217, fixedly connected to the lower end of the carrier platform 106 near the edge, and a through hole is provided at the lower end of the upper carrier 217;

[0099] The first square rod 212 is rotatably connected to the inside of the lower bearing frame 216. The first square rod 212 is provided with a first round shaft portion 2121 adapted to the inner diameter of the through hole inside the lower bearing frame 216 on the outer side thereof, and is used to cooperate with the lower bearing frame to limit the first square rod 212;

[0100] A first square groove 2122, provided inside the first square rod 212;

[0101] The second square rod 213 is slidably inserted into the first square groove 2122, and the lower end of the second square rod 213 is fixedly connected to a first limiting block 2131 for limiting the second square rod 213 in the first square groove 2122;

[0102] A second square groove 2132, provided inside the second square rod 213;

[0103] The third-party rod 214 is slidably inserted in the second square groove 2132. The lower end of the second square rod 213 is fixedly connected with a second limit block 2141 for limiting the third-party rod 214 in the second square groove 2132. A second round shaft portion 2142 is provided on the outer side of the third-party rod 214. The second round shaft portion 2142 is rotatably connected in the through hole of the upper carrier 217.

[0104] A first gear 211 is fixedly connected to the upper end of the third rod 214 and meshes with the amplification component 11;

[0105] The second gear 215 is fixedly connected to the lower end of the first square rod 212 and meshes with the supporting assembly 22 .

[0106] Furthermore, the cross-sections of the second limit block 2141 and the second square groove 2132 are both square, and are used to drive the second square rod 213 to rotate when the third rod 214 rotates;

[0107] The cross-sections of the first limiting block 2131 and the first square groove 2122 are both square, and are used to drive the first square rod 212 to rotate when the second square rod 213 rotates.

[0108] As an improvement, Figure 12-13 As shown, the support assembly 22 includes:

[0109] The side support mechanism 221 is provided with two groups, which are respectively slidably plugged into the side of the bottom plate 100, and are used to synchronously adjust the support range of the side of the bottom plate 100 when the side extension plate 1121 moves;

[0110] The end support mechanism 222 is provided with two groups, which are respectively slidably inserted into the end of the base plate 100, and are used to synchronously adjust the support range of the end of the base plate 100 when the end extension plate 1111 moves.

[0111] Furthermore, the side support mechanism 221 includes:

[0112] A connecting rod 2211 is located at one side of the bottom plate 100. The upper end of the connecting rod 2211 is fixedly connected to a third rack 2213 meshing with the lower part of the telescopic assembly 21. A third receiving groove 1003 is provided outside the third rack 2213 and inside the bottom plate 100.

[0113] The first support rod 2212 is fixedly connected to both ends of the connecting rod 2211 . A second receiving groove 1002 for receiving the first support rod 2212 is provided outside the first support rod 2212 and inside the bottom plate 100 .

[0114] Furthermore, the end support mechanism 222 includes:

[0115] A second support rod 2221 is slidably inserted into the bottom plate 100 , a first receiving groove 1001 is provided outside the second support rod 2221 and inside the bottom plate 100 , and the second support rod 2221 is T-shaped;

[0116] The fourth rack 2222 is fixedly connected to the upper end of the second support rod 2221 , and the fourth rack 2222 is engaged with the lower part of the telescopic assembly 21 .

[0117] It should be noted that: Figure 1 As shown, in the specific implementation process of the present invention, the maintenance rack is placed under the power supply equipment that needs to be repaired, and the maintenance personnel stand on the upper end of the bearing platform 106. Initially, the end extension plate 1111 and the side extension plate 1121 are completely located inside the bearing platform 106, and the motor 101 is started. The motor 101 drives the push block 103 to slide along the guide rod 105 under the action of the thread tangential force between the spiral rod 102 and the push block 103, and the push block 103 drives the hinged rod 104 to gradually expand upward, and the hinged rod 104 drives the bearing platform 106 to move upward, so that the maintenance personnel standing on the upper end of the bearing platform 106 are lifted to a height suitable for the power supply equipment;

[0118] like Figure 10-11 As shown, during the process of repairing the power supply equipment, when the length of the support platform 106 cannot meet the standing position of the repair personnel, the repair personnel can pull the third push-pull rod 123 corresponding to the end that needs to be extended, and the third push-pull rod 123 drives the slide bar 122 to move along the third retreat groove 1211, and the slide bar 122 drives the spacing rod 125 to separate from the first push-pull rod 1113. At this time, the first push-pull rod 1113 is pushed, and the first push-pull rod 1113 drives the end extension plate 1111 to move outward along the lower retreat groove 1062, so that the end extension The plate 1111 drives the first guardrail 1112 to move outward. When the end extension plate 1111 is adjusted to a suitable position, the third push-pull rod 123 is released, and the slide bar 122 drives the spacing rod 125 to reset under the elastic force of the reset spring 124, so that the adjusted first push-pull rod 1113 is positioned again. At this time, the maintenance personnel can stand on the upper end of the end extension plate 1111 to inspect the internal area of ​​the power supply equipment that was previously difficult to inspect, thereby achieving the effect of increasing the working space at the end of the maintenance platform according to actual needs;

[0119] like Figure 7-9As shown, when the width of the support platform 106 cannot meet the standing position of the maintenance personnel, the maintenance personnel can pull the third push-pull rod 123 corresponding to the side that needs to be extended, and the third push-pull rod 123 drives the slide bar 122 to move along the third retreat groove 1211, and the slide bar 122 drives the spacing rod 125 to separate from the second push-pull rod 1122. At this time, the second push-pull rod 1122 is pushed, and the second push-pull rod 1122 drives the side extension plate 1121 to move outward along the upper retreat groove 1061, so that the side extension plate 1121 drives the second guardrail 1123 to move outward. When the plate 1121 is adjusted to a suitable position, the third push-pull rod 123 is released, and the slide rod 122 drives the spacer rod 125 to reset under the elastic force of the reset spring 124, so that the second push-pull rod 1122 after adjustment is positioned again. At this time, the maintenance personnel can stand on the upper end of the side extension plate 1121 to inspect the internal area of ​​the power supply equipment that was previously difficult to inspect, thereby achieving the effect of increasing the working space on the side of the maintenance table according to actual needs, avoiding the need to repeatedly raise and lower the maintenance table to adjust the placement position of the maintenance table during the maintenance process, and improving the maintenance efficiency.

[0120] It should be noted that: Figure 2-4 , Figure 12-13 As shown, in order to prevent the accident of the maintenance platform tipping over when the maintenance personnel stand on the upper end of the extended end extension plate 1111, during the process of the end extension plate 1111 extending outward, the end extension plate 1111 drives the second gear 215 to rotate through the first rack 1114, the second gear 215 rotates through the third rod 214, the third rod 214 drives the second square rod 213 to rotate through the second limit block 2141, the second square rod 213 drives the first square rod 212 to rotate through the second limit block 2131, the first square rod 212 drives the fourth rack 2222 to move outward along the first accommodating groove 1001 through the first gear 211, the fourth rack 2222 drives the second support rod 2221 to move, so that the actual support range of the end of the bottom plate 100 is increased, the stability of the end of the maintenance platform is improved, and the maintenance platform is prevented from tipping over when the maintenance personnel stand on the extended end extension plate 1111;

[0121] Similarly, in order to prevent the maintenance personnel from standing on the extended side extension plate 1121 and causing the maintenance platform to tip over, during the outward extension process of the side extension plate 1121, the side extension plate 1121 drives the second gear 215 to rotate through the second rack 1124, the second gear 215 rotates through the third rod 214, the third rod 214 drives the second square rod 213 to rotate through the second limit block 2141, the second square rod 213 drives the first square rod 212 to rotate through the first limit block 2131, the first square rod 212 drives the third rack 2213 to move outward along the third accommodating groove 1003 through the first gear 211, the third rack 2213 drives the first support rod 2212 to move outward along the second accommodating groove 1002 through the connecting rod 2211, so that the supporting range of the side of the bottom plate 100 is increased, and the maintenance platform is prevented from tipping over when the maintenance personnel stand on the extended side extension plate 1121, thereby improving the stability of the side of the maintenance platform;

[0122] like Figure 2-4 As shown, the present invention provides a retractable telescopic component 21, so that when the spiral rod 102 drives the supporting platform 106 to rise, the telescopic component 21 can be flexibly retracted and retracted, and after the supporting platform 106 stops rising, by setting the cross-sections of the second limit block 2141 and the second square groove 2132 inside the telescopic component 21 to be square, and setting the cross-sections of the first limit block 2131 and the first square groove 2122 to be square, it is ensured that, under the premise of not affecting the lifting and lowering of the supporting platform 106, while the expansion unit 1 is expanded, the base plate 100 can synchronously increase the support range with the ground, and can be adaptively adjusted according to the area to be expanded, and the overall flexibility is high.

[0123] In addition, if Figure 12-13 As shown, since the length of the base plate 100 is usually longer than its width, the present invention sets two first support rods 2212 on the side of the base plate 100 and moves synchronously with the side extension plate 1121, and sets a second support rod 2221 on the end of the base plate and moves synchronously with the end extension plate 1111, thereby further improving the overall stability of the maintenance platform.

[0124] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0125] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inspection stand for electric power maintenance, comprising a base plate (100), a hinged rod (104) mounted on the upper end of the base plate (100), a motor (101) provided on one side of the hinged rod (104) for driving the hinged rod (104) to expand and contract via a spiral rod (102), and a carrying platform (106) provided on the upper end of the hinged rod (104) for carrying people, characterized in that: Also includes: An expansion unit (1) comprises an amplification component (11) arranged outside the carrier platform (106) for increasing the working space on the upper surface of the carrier platform (106), and a positioning component (12) arranged on the upper end of the carrier platform (106) for positioning the amplification component (11); The support adjustment unit (2) comprises a support component (22) arranged inside the base plate (100) for expanding the bottom surface of the base plate (100), and a telescopic component (21) arranged between the support component (22) and the amplification component (11) for synchronously driving the support component (22) to extend during the amplification process of the amplification component (11).

2. The power maintenance inspection rack according to claim 1, characterized in that: The amplification component (11) comprises: An end amplification mechanism (111) is disposed at two ends of the carrier platform (106) and is used to extend along the two ends of the carrier platform (106) to amplify the working space at the two ends of the carrier platform (106); The side amplification mechanism (112) is arranged on both sides of the support platform (106) and is used to extend along both sides of the support platform (106) to amplify the working space on both sides of the support platform (106). The side amplification mechanism (112) is located above the end amplification mechanism (111).

3. The power maintenance inspection rack according to claim 2, characterized in that: The side amplification mechanism (112) comprises: The side extension plates (1121) are provided in two groups and are respectively slidably plugged into the sides of the bearing platform (106); an upper retreat groove (1061) is provided on the outside of the side extension plates (1121) and inside the bearing platform (106); A second push-pull rod (1122) is fixedly connected to the upper end of the side extension plate (1121) and is used to adjust the position of the side extension plate (1121); a first guide groove (1063) for guiding the movement of the second push-pull rod (1122) is provided outside the second push-pull rod (1122) and inside the bearing platform (106); A second guardrail (1123) is fixedly connected to the upper end of the side extension plate (1121) near the side, and is used to protect the staff on the upper part of the supporting platform (106); The second rack (1124) is fixedly connected to the lower end of the side extension plate (1121) and is located inside the supporting platform (106).

4. The power maintenance inspection rack according to claim 3, characterized in that: The end amplification mechanism (111) comprises: The end extension plates (1111) are provided in two groups and are respectively slidably plugged into the ends of the bearing platform (106); a lower retreat groove (1062) is provided outside the end extension plates (1111) and inside the bearing platform (106); A first guardrail (1112) is fixedly connected to the upper end of the end extension plate (1111) near the end, and is used to protect workers on the upper part of the supporting platform (106); A first push-pull rod (1113) is fixedly connected to the upper end of the end extension plate (1111) and is used to adjust the position of the end extension plate (1111); a second guide groove (1064) for guiding the movement of the first push-pull rod (1113) is provided outside the first push-pull rod (1113) and inside the support platform (106); the first push-pull rod (1113) is located between the two groups of side extension plates (1121); The first rack (1114) is fixedly connected to the lower end of the end extension plate (1111).

5. The power maintenance inspection rack according to claim 4, characterized in that: The positioning component (12) comprises: The fixing frame (121) is provided with four groups, which are respectively arranged corresponding to the second push rods corresponding to the two groups of the side extension plates (1121) and the first push rods corresponding to the two groups of the end extension plates (1111), and the fixing frame (121) is provided with a third retreat groove (1211) inside; A sliding rod (122) is slidably inserted into the third retreat groove (1211); A plurality of spacing rods (125) are provided at equal intervals and fixedly connected to the side of the slide rod (122) for positioning the first push rod or the second push rod. A third guide groove (1212) for guiding the movement of the spacing rod (125) is provided outside the spacing rod (125) and inside the fixing frame (121); A third push-pull rod (123) is fixedly connected to a side of the slide rod (122) opposite to the spacing rod (125) and is used to pull the slide rod (122); A reset spring (124) is slidably sleeved on the outside of the third push-pull rod (123) and located inside the third retreat groove (1211), and is used to reset the slide rod (122).

6. The power maintenance inspection rack according to claim 2, characterized in that: The telescopic assembly (21) is provided with four groups, which are respectively arranged corresponding to the end amplification mechanism (111) and the side amplification mechanism (112), and include: A lower bearing frame (216) is fixedly connected to the upper end of the bottom plate (100) near the edge, and a through hole is provided at the upper end of the lower bearing frame (216); An upper bearing frame (217) is fixedly connected to the lower end of the bearing platform (106) near the edge, and a through hole is provided at the lower end of the upper bearing frame (217); A first square rod (212) is rotatably connected to the interior of the lower bearing frame (216); a first round shaft portion (2121) adapted to the inner diameter of the internal through hole of the lower bearing frame (216) is provided on the outer side of the first square rod (212) for cooperating with the lower bearing frame to limit the position of the first square rod (212); A first square groove (2122) is provided inside the first square rod (212); A second square rod (213) is slidably inserted into the first square groove (2122); a first limiting block (2131) is fixedly connected to the lower end of the second square rod (213) for limiting the second square rod (213) in the first square groove (2122); A second square groove (2132) is provided inside the second square rod (213); A third-party rod (214) is slidably inserted into the second square groove (2132); a second limiting block (2141) is fixedly connected to the lower end of the second square rod (213) for limiting the third-party rod (214) in the second square groove (2132); a second round shaft portion (2142) is provided on the outer side of the third-party rod (214); and the second round shaft portion (2142) is rotatably connected to the through hole of the upper carrier frame (217); A first gear (211) is fixedly connected to the upper end of the third rod (214) and meshes with the amplification component (11); The second gear (215) is fixedly connected to the lower end of the first square rod (212) and meshes with the supporting assembly (22).

7. The power maintenance inspection rack according to claim 6, characterized in that: The second limiting block (2141) and the second square groove (2132) are both square in cross-section, and are used to drive the second square rod (213) to rotate when the third rod (214) rotates; The first limiting block (2131) and the first square groove (2122) are both square in cross-section, and are used to drive the first square rod (212) to rotate when the second square rod (213) rotates.

8. The power maintenance inspection rack according to claim 1, characterized in that: The support assembly (22) comprises: The side support mechanism (221) is provided with two groups, which are respectively slidably plugged into the side of the bottom plate (100) and are used to synchronously adjust the support range of the side of the bottom plate (100) when the side extension plate (1121) moves; The end support mechanism (222) is provided with two groups, which are respectively slidably plugged into the ends of the bottom plate (100) and are used to synchronously adjust the support range of the end of the bottom plate (100) when the end extension plate (1111) moves.

9. The power maintenance inspection rack according to claim 8, characterized in that: The side support mechanism (221) comprises: A connecting rod (2211) is located on one side of the bottom plate (100); the upper end of the connecting rod (2211) is fixedly connected to a third rack (2213) meshing with the lower part of the telescopic assembly (21); a third accommodating groove (1003) is provided outside the third rack (2213) and inside the bottom plate (100); The first support rod (2212) is fixedly connected to both ends of the connecting rod (2211), and a second accommodating groove (1002) for accommodating the first support rod (2212) is provided outside the first support rod (2212) and inside the bottom plate (100).

10. The power maintenance inspection rack according to claim 8, characterized in that: The end support mechanism (222) comprises: A second support rod (2221) is slidably inserted into the bottom plate (100), a first receiving groove (1001) is provided outside the second support rod (2221) and inside the bottom plate (100), and the second support rod (2221) is T-shaped; A fourth rack (2222) is fixedly connected to the upper end of the second support rod (2221), and the fourth rack (2222) is meshed with the lower part of the telescopic assembly (21).

Images