A transformer installation auxiliary ladder

Abstract

A transformer installation auxiliary climbing ladder belongs to the technical field of transformer installation and comprises an installation position, a butt joint part, a lower stand column, an upper stand column and a rod system, the butt joint part is butt jointed with the installation position and is installed at the bottom of the upper stand column, and the rod system is connected between the lower stand column and the upper stand column. The butt joint part comprises a butt joint plate, an upper hinged plate, a lower hinged plate and a swing hinged rod, the butt joint plate is installed at the bottom of the upper hinged plate, the butt joint plate butt joints the whole climbing ladder on the installation position, the upper hinged plate is butt jointed with the upper stand column, and the lower hinged plate is butt jointed with the lower stand column. The lower hinged plate is provided with lower hinged lugs on both sides, the lower hinged lugs are butt jointed with the lower stand column, and the lower hinged plate is provided with a butt joint groove on the front side. The lower stand column comprises a lower column body, lower-position swing double lugs, front hinged double lugs and a pull ring, the lower column body is provided with lower-position swing double lugs at the bottom, the lower-position swing double lugs are butt jointed with the lower hinged lugs, the installation of the lower stand column is realized, the lower stand column is provided with front hinged double lugs on the upper and lower positions on the rear side, respectively, and the front hinged double lugs are hinged with the rod system.

Description

Technical Field

[0001] This invention belongs to the field of transformer installation technology, and in particular relates to an auxiliary ladder for transformer installation. Background Technology

[0002] With the widespread application of power equipment, transformers are increasingly used. Transformers come in various shapes and sizes, and their placement varies. Sometimes, transformers are installed on elevated platforms or large supports. Although the transformer itself is usually transported to the installation location by crane, operators still need to climb onto the mounting platform to complete the installation. To facilitate access to the platform, ladders are typically used. Simple ladders offer safety features, while complex ladders are inconvenient to carry and transport. Summary of the Invention

[0003] This invention provides an auxiliary ladder for transformer installation to solve the problems mentioned in the background art.

[0004] The technical problem solved by this invention is achieved by the following technical solution:

[0005] A transformer installation auxiliary ladder includes an installation position, a docking part, a lower column, an upper column, and a rod system. The docking part is connected to the installation position and installed at the bottom of the upper column. A rod system is installed between the lower column and the upper column for connection.

[0006] The connecting section includes a connecting plate, an upper hinge plate, a lower hinge plate, and a sway hinge rod. The connecting plate is installed at the bottom of the upper hinge plate, connecting the entire ladder to the installation position. The upper hinge plate connects to the upper column, and the lower hinge plate connects to the lower column. The lower hinge plate has lower hinge lugs on both sides, which connect to the lower column. The front of the lower hinge plate has a connecting groove. If necessary, multiple ladders can be connected through the connecting groove and slot to increase the length and height of the ladder.

[0007] The lower column includes a lower column body, lower sway double ears, front hinge double ears, and a pull ring. The lower column body has lower sway double ears at its bottom, which mate with the lower hinge lugs to achieve the installation of the lower column. The lower column has front hinge double ears at both the upper and lower rear sides, which are hinged to the rod system. The upper column includes an upper column body, upper hinge double ears, upper sway double ears, and a lower hinge hole. The upper column body has upper hinge double ears at its top, which are hinged to the rod system. The upper column body has upper sway double ears at its bottom, which are hinged to the upper hinge lugs. The lower column body has a lower hinge hole at its front bottom, which is hinged to the rod system.

[0008] The linkage system includes a lower inclined beam, diagonal tie rods, an upper inclined beam, pedals, and hinge screws. The lower inclined beam is hinged between the lower front hinge lugs and the lower hinge hole, while the upper inclined beam is hinged between the upper front hinge lugs and the upper hinge lugs. Hinged pedals are evenly distributed on the lower inclined beam, and a diagonal tie beam is hinged between the center of each pedal and the upper inclined beam. The hinge screws hinge the pedals to the lower diagonal tie beam. Threaded holes are evenly distributed on the lower inclined beam, which mate with the hinge screws. The bottom of the lower inclined beam has a waist-shaped hole that mates with the lower front hinge lugs, compensating for the swinging motion of the lower inclined beam when the ladder is folded. Hinged bosses are evenly distributed on the inner side of the upper inclined beam, and diagonal tie rods are hinged to these bosses.

[0009] Furthermore, the sway hinge rods are respectively installed in the upper hole of the upper hinge plate and the lower hole of the lower hinge plate.

[0010] Furthermore, easily insertable pins are installed in the lower holes of the upper hinge plate and the upper holes of the lower hinge plate to limit the vertical position of the lower and upper columns. Removing the pins allows the ladder to be easily folded.

[0011] Furthermore, the top of the connecting plate has a pair of mounting bosses that mate with the upper hinge plate to install the connecting plate. The bottom of the connecting plate has a groove that mates with the mounting position to achieve a snap-fit ​​connection between the connecting plate and the mounting position. On the other side of the bottom of the connecting plate, there is a pair of clamping holes for tightening with clamping screws. The upper hinge plate has a pair of mounting holes that mate with the mounting bosses. Both sides of the upper hinge plate have upper hinge lugs that mate with the upper column.

[0012] Furthermore, the top of the lower column has a pull ring, which can be held to operate the ladder to fold or unfold.

[0013] Furthermore, the pedal has flip-up bosses on both sides of its rear end, which mate with hinge screws to allow the pedal to be rotated. The pedal also has pull rod bosses on both sides of its middle section, which are hinged to the diagonal pull rod.

[0014] Furthermore, the hinge screw is divided into three sections: the screw head, the threaded area, and the boss area. The threaded area is connected to the threaded hole of the lower inclined beam, and the boss area is hinged to the flip boss.

[0015] The beneficial effects of this invention are:

[0016] This invention relates to a climbing aid used during transformer delivery and installation. It allows for the selection of suitable connecting plates for high-level installation at the transformer's mounting location or on the transformer body. Subsequently, a lower overlapping plate is placed according to the desired height, flexibly adapting to different climbing positions. Multiple integral structures can also be interlocked to supplement length as needed. It can be folded and stored for easy transport. The inclined beams on both sides provide excellent protection for operators, ensuring safety during climbing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is an exploded view of the present invention;

[0020] In the diagram: 10. Mounting position, 20. Connecting part, 21. Connecting plate, 211. Mounting boss, 212. Groove, 213. Clamping hole, 22. Upper hinge plate, 221. Mounting hole, 222. Upper hinge lug, 23. Lower hinge plate, 231. Lower hinge lug, 232. Connecting groove, 24. Swinging hinge rod, 30. Lower column, 31. Lower column body, 32. Lower swing double lug, 33. 34. Front hinge double lugs, 40. Pull ring, 41. Upper column, 42. Upper column body, 43. Upper hinge double lugs, 44. Lower hinge hole, 50. Rod system, 51. Lower inclined beam, 511. Threaded hole, 512. Waist-shaped hole, 52. Diagonal tie rod, 53. Upper inclined beam, 531. Hinge boss, 54. Pedal, 541. Flip boss, 542. Tie rod boss, 55. Hinge screw. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0022] See Figures 1-3 The transformer installation auxiliary ladder shown includes an installation position 10, a docking part 20, a lower column 30, an upper column 40, and a rod system 50. The docking part 20 docks with the installation position 10 and is installed at the bottom of the upper column 40. The rod system 50 is installed between the lower column 30 and the upper column 40 for connection.

[0023] Mounting position 10 can be an installation platform or bracket for the transformer product, or it can be the transformer enclosure itself, making it convenient for operators to climb to the top of the transformer enclosure using a ladder to perform necessary installation operations.

[0024] The docking section 20 includes a docking plate 21, an upper hinge plate 22, a lower hinge plate 23, and a swing hinge rod 24. The docking plate 21 is installed at the bottom of the upper hinge plate 22, and the docking plate 21 connects the entire ladder to the mounting position 10. The upper hinge plate 22 docks with the upper column 40, and the lower hinge plate 23 docks with the lower column 30. The swing hinge rod 24 is installed in the upper hole of the upper hinge plate 22 and the lower hole of the lower hinge plate 23. The lower hole of the upper hinge plate 22 and the upper hole of the lower hinge plate 23 are respectively equipped with easily insertable pins to limit the vertical position of the lower column 30 and the upper column 40. The ladder can be easily folded by removing the pins.

[0025] The specific structural form of the mating plate 21 can be replaced and fitted according to the specific structural form of the mounting position 10. This embodiment illustrates one of the more common structural forms, in which the side wall of the mounting position 10 has a plate-like structure. Therefore, the mating plate 21 can be fitted into the side wall of the mounting position 10. The top of the mating plate 21 has a pair of mounting bosses 211, which mate with the upper hinge plate 22 to install the mating plate 21. The bottom of the mating plate 21 has a groove 212, which mates with the mounting position 10 to achieve a snap-fit ​​connection between the mating plate 21 and the mounting position 10. The other side of the bottom of the mating plate 21 has a pair of clamping holes 213, which are clamped with clamping screws.

[0026] The upper hinge plate 22 has a pair of mounting holes 221, which are connected to the mounting boss 211. The upper hinge plate 22 has upper hinge lugs 222 on both sides, which are connected to the upper column 40.

[0027] The lower hinge plate 23 has lower hinge lugs 231 on both sides, which are connected to the lower column 30. The lower hinge plate 23 has a docking groove 232 on the front side. If necessary, multiple ladders can be connected through the docking groove 232 and the slot 212 to increase the length and height of the ladder.

[0028] The lower column 30 includes a lower column body 31, lower sway double ears 32, front hinge double ears 33, and a pull ring 34. The lower column body 31 has lower sway double ears 32 at the bottom, which are connected to the lower hinge ear 231 to realize the installation of the lower column 30. The lower column 30 has front hinge double ears 33 at the upper and lower rear sides, which are hinged to the rod system 50. The lower column body 31 has a pull ring 34 at the top, which can be used to operate the ladder to fold or unfold.

[0029] The upper column 40 includes an upper column body 41, upper hinge double ears 42, upper swing double ears 43, and lower hinge hole 44. The upper column body 41 has upper hinge double ears 42 at the top, which are hinged to the rod system 50. The upper column body 41 has upper swing double ears 43 at the bottom, which are hinged to the upper hinge ear plate 222. The lower column body 41 has a lower hinge hole 44 on the front side below, which is hinged to the rod system 50.

[0030] The linkage 50 includes a lower inclined beam 51, a tie rod 52, an upper inclined beam 53, a pedal 54, and a hinge screw 55. The lower inclined beam 51 is hinged between the lower front hinge lug 33 and the lower hinge hole 44. The upper inclined beam 53 is hinged between the upper front hinge lug 33 and the upper hinge lug 42. Hinged pedals 54 are evenly distributed on the lower inclined beam 51. The tie rod 52 is hinged between the middle of the pedal 54 and the upper inclined beam 53. The hinge screw 55 hinges the pedal 54 to the lower tie rod 51.

[0031] The lower inclined beam 51 has evenly distributed threaded holes 511, which are connected to the hinge screws 55. The bottom of the lower inclined beam 51 has a waist-shaped hole 512, which is connected to the lower front hinge double ears 33. The waist-shaped hole 512 provides compensation for the swinging motion of the lower inclined beam 51 when the ladder is folded.

[0032] Hinged bosses 531 are evenly distributed on the inner side of the upper inclined beam 53, and inclined tie rods 52 are hinged on the hinged bosses 531.

[0033] The pedal 54 has flip-up bosses 541 on both sides of its rear end. The flip-up bosses 541 are engaged with hinge screws 55 to enable the pedal 54 to be rotated. The pedal 54 has pull rod bosses 542 on both sides of its middle part. The pull rod bosses 542 are hinged to the diagonal pull rod 52.

[0034] The hinge screw 55 is divided into three sections: screw head, threaded area and boss area. The threaded area is connected to the threaded hole 511 of the lower inclined beam 51, and the boss area is hinged to the flip boss 541.

[0035] The working principle of this invention is as follows: The illustrated state is the unfolded installation state. When folding is required after use, remove the pin from the upper hole of the lower hinge lug 231 and the pin from the lower hole of the upper swing double lug 43, leaving their respective swing hinge rods 24 as rotation hinge points. Flip the frame backward. At this time, the lower column 30, upper column 40, lower inclined beam 51, and upper inclined beam 53 rotate relative to each other. The lower inclined beam 51 compensates through the waist-shaped hole 512, realizing the folding of the overall frame. The diagonal pull rod 52 and the pedal 54 rotate relative to each other, realizing the folding of the pedal 54. Holding the pull ring 34 allows for convenient completion of the above operations. The docking plate 21 can be replaced as needed. When the ladder needs to be deployed, first flip the lower uprights 30 and 40 vertically and use pins to limit their position. At this time, the lower inclined beam 51 and upper inclined beam 53 can still rotate. Install the connecting plate 21 on the platform to be climbed, and then gradually release the lower hinge plate 23 downwards until it abuts against the support below. If necessary, two or more ladder structures can be connected through the connecting groove 232 to supplement the length.

[0036] The above embodiments primarily illustrate the transformer installation auxiliary ladder of the present invention. Although only a limited number of embodiments and technical features have been described, those skilled in the art should understand that the present invention can be implemented in many other forms without departing from its spirit and scope. Therefore, the illustrated embodiments are considered illustrative and not limiting, and the present invention may cover various modifications and substitutions without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A transformer installation auxiliary ladder, comprising an installation position (10), a docking part (20), a lower column (30), an upper column (40), and a rod system (50), characterized in that, The docking part (20) docks with the mounting position (10) and is installed at the bottom of the upper column (40). A rod system (50) is installed between the lower column (30) and the upper column (40). The docking part (20) includes a docking plate (21), an upper hinge plate (22), a lower hinge plate (23), and a swing hinge rod (24). The docking plate (21) is installed at the bottom of the upper hinge plate (22). The docking plate (21) docks the entire ladder with the mounting position (10). The upper hinge plate (22) docks with the upper column (40). The top of the docking plate (21) has a pair of mounting bosses (211), which dock with the upper hinge plate (22). The bottom of the docking plate (21) has a groove (212), which docks with the mounting position (10). The bottom of the connecting plate (21) has a pair of clamping holes (213) on the other side. Clamping screws are used to clamp the plate at the clamping holes (213). The upper hinge plate (22) has a pair of mounting holes (221). The mounting holes (221) mate with the mounting boss (211). The upper hinge plate (22) has upper hinge lugs (222) on both sides. The upper hinge lugs (222) mate with the upper column (40). The lower hinge plate (23) mates with the lower column (30). The lower hinge plate (23) has lower hinge lugs (231) on both sides. The lower hinge lugs (231) mate with the lower column (30). The lower hinge plate (23) has a docking groove (232) on the front side. The swing hinge rod (24) is installed in the upper hole and the lower hinge of the upper hinge plate (22) respectively. The lower hole of the plate (23), the lower hole of the upper hinge plate (22), and the upper hole of the lower hinge plate (23) are respectively equipped with easy-to-insert pins. The lower column (30) includes a lower column body (31), a lower swing double ear (32), a front hinge double ear (33), and a pull ring (34). The lower column body (31) has a lower swing double ear (32) at the bottom, which is connected to the lower hinge ear (231). The lower column (30) has a front hinge double ear (33) at the upper and lower rear sides respectively, which is hinged to the rod system (50). The upper column (40) includes an upper column body (41), an upper hinge double ear (42), an upper swing double ear (43), and a lower hinge hole (44). The upper column body (41) has an upper hinge double ear (42) at the top. The upper hinged double ears are hinged to the rod system (50). The bottom of the upper column (41) has an upper swing double ear (43), which is hinged to the upper hinged ear (222). The front side of the lower part of the upper column (41) has a lower hinge hole (44). The rod system (50) includes a lower inclined beam (51), a diagonal tie rod (52), an upper inclined beam (53), a pedal (54), and a hinge screw (55). The lower inclined beam (51) is hinged between the lower front hinged double ears (33) and the lower hinge hole (44). The upper inclined beam (53) is hinged between the upper front hinged double ears (33) and the upper hinged double ears (42). Hinged pedals (54) are evenly distributed on the lower inclined beam (51). The diagonal tie rod (52) is hinged between the middle of the pedal (54) and the upper inclined beam (53).A hinge screw (55) hinges the pedal (54) to the lower inclined beam (51). The lower inclined beam (51) has evenly distributed threaded holes (511), which mate with the hinge screw (55). The bottom of the lower inclined beam (51) has a waist-shaped hole (512), which mates with the lower front hinge lugs (33). The inner side of the upper inclined beam (53) has evenly distributed hinge bosses (531), on which a diagonal pull rod (52) is hinged. The middle of the pedal (54) has pull rod bosses (542) on both sides, which are hinged to the diagonal pull rods (52).

2. The transformer installation auxiliary ladder as described in claim 1, characterized in that, The lower column (31) has a pull ring (34) at the top, and holding the pull ring (34) can operate the ladder to fold or unfold.

3. The transformer installation auxiliary ladder as described in claim 1, characterized in that, The pedal (54) has flip-up bosses (541) on both sides of its rear end. The flip-up bosses (541) are connected to the hinge screws (55) to realize the rotational installation of the pedal (54).

4. The transformer installation auxiliary ladder as described in claim 1, characterized in that, The hinge screw (55) is divided into three sections: screw head, threaded area and boss area. The threaded area is connected to the threaded hole (511) of the lower inclined beam (51), and the boss area is hinged to the flip boss (541).

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