Mutual inductor installation device

Abstract

The invention relates to the field of installation of switch device parts, in particular to a mutual inductor installation device. The mutual inductor installation device comprises an installation base, the top of the installation base is provided with an installation face used for installing a three-phase mutual inductor, the bottom of the installation base is provided with a supporting leg assembly, and the bottom of the supporting leg assembly is provided with a fixed connection face used for being connected with a switch cabinet frame. And an avoiding space for a fork arm of a forklift to extend into so as to support the mounting base is formed between the fixed connecting surface and the mounting surface. Three phases of mutual inductors are sequentially installed on the installation face, the mutual inductors and the installation device jointly form a mutual inductor installation module, and a fork arm of a forklift can directly stretch into an avoiding space of the mutual inductor installation module to lift up the mutual inductor installation module and carry the mutual inductor installation module into an angle steel frame to be carried. The mutual inductor installation module is convenient to carry, and the problem that an existing mutual inductor installation module is inconvenient to carry during installation is solved.

Description

Technical Field

[0001] The invention relates to the field of installation of switch device parts, and in particular to a mutual inductor installation device. Background Art

[0002] When installing a transformer in a switch cabinet, the transformer mounting beam is usually installed in the switch cabinet first, the transformer is moved into the switch cabinet by manpower, and then the transformer and the mounting beam in the switch cabinet are fixed with bolts and nuts respectively. For switch cabinets with higher voltage levels, the transformer is larger in size and heavier in weight, so this installation method is very inconvenient, has great safety hazards, and is less efficient when installed alone.

[0003] The Chinese utility model patent with the authorization announcement number CN203631993U and the authorization announcement date 2014 / 06 / 04 discloses a centralized installation structure for multiple groups of voltage transformers, which includes a transformer installation bracket and a U-shaped angle steel. The transformer installation bracket is an integrally formed structure, which is provided with a transformer installation hole and an installation connection hole between the U-shaped angle steel. During installation, the transformers are first installed on the transformer installation brackets respectively, and then the installation brackets with the transformers installed are installed on the side panels of the U-shaped angle steel. The installation brackets and the U-shaped angle steel form the installation base part of the transformer. In this way, the individual transformers are installed as a whole on the installation base to form an easy-to-install installation module, and then the entire module is installed on the frame in the cabinet. This installation structure solves the above-mentioned problems of no suitable tooling when installing the transformers individually, inconvenient installation, and low installation efficiency.

[0004] However, the installation module formed in this way is heavier. If the installation module is to be transported to the cabinet for installation, it must be carried manually or with the help of external equipment. Manual transportation and installation is inconvenient and unsafe. If it is hoisted by transportation equipment, the transportation rope needs to pass through the bottom of the installation module and tie a knot to fix the installation module or the rope needs to be fixed to the base of the transformer installation module in advance. Therefore, the existing transformer installation module is very inconvenient to carry. Summary of the invention

[0005] The object of the present invention is to provide a transformer installation device to solve the problem that the existing transformer installation module is inconvenient to carry when installed in a cabinet, resulting in a very laborious and troublesome installation process.

[0006] To achieve the above object, the transformer installation device of the present invention adopts the following technical solutions: A transformer installation device comprises a mounting base, wherein the top of the mounting base is provided with a mounting surface for installing a three-phase transformer, the bottom of the mounting base is provided with a leg assembly, the bottom of the leg assembly is provided with a fixed connection surface for connecting to a switch cabinet frame, and an escape space is provided between the fixed connection surface and the mounting surface for a fork arm of a forklift to extend into and lift the mounting base.

[0007] Furthermore, the leg assemblies are provided in two groups and are located at both ends of the length direction of the mounting base, and the space enclosed between the two groups of leg assemblies and the mounting base is the avoidance space.

[0008] Furthermore, the mounting base is a square shell-like structure, including a top panel and four side panels, the top panel is the mounting surface, and the top of the leg assembly extends into the cavity surrounded by the top panel and the side panels and is fixedly connected to the side panels.

[0009] Furthermore, the leg assembly includes a leg and a foot connected to the leg, and the fixed connection surface is arranged on the foot.

[0010] Furthermore, the support leg includes a supporting upright plate and supporting side plates connected to both ends of the supporting upright plate, the supporting upright plate is perpendicular to the supporting side plates, the tops of the supporting upright plate and the supporting side plates extend into the cavity surrounded by the top panel and the side panel along the width direction of the mounting base, and are fixedly connected to the two opposite side panels of the mounting base through the two supporting side plates.

[0011] Furthermore, at least one of the upper and lower edges of the supporting vertical plate is provided with a reinforcing flange.

[0012] Furthermore, the supporting upright plate and the supporting side plate are an integrally bent plate.

[0013] Furthermore, the support leg is in the shape of an elongated strip, and comprises a side connecting plate connected to the side of the supporting vertical plate facing away from the supporting side plate and a bottom connecting plate connected to the side connecting plate, and the lower side surface of the bottom connecting plate constitutes the fixed connecting surface.

[0014] Furthermore, the side connecting plate and the bottom connecting plate are integrally bent plates.

[0015] Furthermore, both ends of the side connecting plates are bent to form reinforcing side plates on the side where the bottom connecting plate is located.

[0016] Beneficial effects: The transformer installation device of the present invention is a pioneering invention. Specifically, the transformer installation device of the present invention includes a mounting base and a leg assembly arranged at the bottom of the mounting base, the top of the mounting base has a mounting surface, the bottom of the leg assembly is provided with a fixed connection surface for connecting to the inner frame of the cabinet, and there is an escape space between the fixed connection surface and the mounting surface for the fork arm of a forklift to extend into to lift the mounting base. The three-phase transformers are installed on the mounting surface in sequence, and the transformer and the mounting device together form a transformer installation module. The fork arm of the forklift can directly extend into the escape space of the transformer installation module to lift the transformer installation module and carry it to the installation frame in the cabinet. Since the fixed connection surface is below the fork arm, after the entire transformer installation module is placed on the installation frame, the fork arm can be freely withdrawn without interference, which facilitates the installation of the transformer installation module in the cabinet and solves the problem of inconvenience in carrying during the installation of the existing transformer installation module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a mutual inductor installation device of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the mounting base; Figure 3 for Figure 1 Schematic diagram of the structure of the middle pillar; Figure 4 for Figure 1 Schematic diagram of the structure of the middle support beam; Figure 5 This is a schematic diagram of installing a mutual inductor in a switch cabinet using the mutual inductor installation device of the present invention.

[0018] In the figure: 1. Installation base; 11. Installation surface; 12. Top surface; 13. Side surface; 2. Leg; 21. Support vertical plate; 22. Support side plate; 23. Strengthening flange; 3. Support foot; 31. Side connecting plate; 32. Bottom connecting plate; 33. Fixed connecting surface; 34 Strengthening side plate; 5. Leg assembly; 6. Avoidance space; 7. Transformer; 8. Switch cabinet; 10. Cabinet door. DETAILED DESCRIPTION

[0019] The present invention provides an avoidance space between the mounting surface of the transformer mounting base of the existing transformer mounting module and the fixed connection surface of the mounting frame in the switch cabinet, so that a forklift fork arm can be inserted to transport the mounting module to the mounting frame in the cabinet for installation, thereby solving the problem of inconvenient transportation of the existing transformer mounting module.

[0020] Based on the above invention concept, the present invention provides a transformer installation device. Figure 1As shown, as a basic solution, the transformer installation device of the present invention includes a mounting base 1, the top of the mounting base 1 is provided with a mounting surface 11 for installing the transformer, the mounting surface 11 is provided with mounting holes for installing the transformer, the current transformer 4 is sequentially installed on the mounting surface 11, the bottom of the mounting base 1 is provided with a leg assembly 5, the leg assembly 5 is used to support the mounting base 1 with the transformer installed, the bottom of the leg assembly 5 is provided with a fixed connection surface 33 for connecting to the switch cabinet frame, and an avoidance space 6 is provided between the fixed connection surface 33 and the mounting surface 11 for the fork arm of the forklift to extend into to lift the mounting base.

[0021] Based on the above scheme, in one embodiment, the mounting base 1 can be obtained by punching a steel plate, but in order to ensure the bearing capacity and structural strength, the steel plate is often thicker, which is expensive and heavy, and it is inconvenient to punch holes. The mounting base 1 of the transformer is mainly used to provide a mounting surface 11 for the transformer while meeting the bearing strength of the three-phase transformer. Preferably, the mounting base 1 is a square shell structure, such as Figure 2 As shown, it is formed by bending an easy-to-process, lightweight metal plate in one piece, and the bent structure satisfies its bearing strength. The mounting base 1 includes a top surface 12 and four side surfaces 13. A through hole for mounting a transformer is opened on the top surface 12, and a through hole for connecting with the leg assembly 5 is opened on the side panel 13.

[0022] The leg assembly 5 is arranged at the bottom of the mounting base 1 and can be fixed to the mounting base 1 by welding or bolting. The leg assembly 5 is used to support the mounting base 1 on which the mutual inductor is installed, and to support the mounting base 1 off the ground. Figure 5 As shown, the leg assembly also has a fixed connection surface 33 for connecting to the corresponding bracket in the cabinet, and there is an avoidance space 6 between the fixed connection surface 33 and the mounting surface 11 for the forklift fork arm to be inserted. The number of support assemblies 5 can be three groups, arranged along the length direction of the mounting base 1, wherein the spaces enclosed between the first two groups and the last two groups of the three groups and the mounting base 1 respectively meet the requirements for the insertion of the forklift fork arm; the number of support assemblies 5 can also be four groups, wherein the spaces enclosed between the two support assemblies 5 and the mounting base meet the requirements for the insertion of the forklift fork arm, and the number of support assemblies 5 can be determined according to specific circumstances. Preferably, under the condition of meeting the requirements of support strength, avoidance space and connection with the angle steel frame, the support assemblies are arranged in two groups, and are located at both ends of the length direction of the mounting base 1.

[0023] The support assembly 5 can be a channel steel. Two groups of channel steels are arranged at the two ends of the length direction of the installation base 1, and the openings are arranged back to back. The channel steel is provided with a long hole connected to the frame inside the cabinet. The channel steel is welded and fixed to the installation base 1. The avoidance space surrounded by the two groups of channel steels and the installation base 1 should meet the requirements of inserting the fork arm of the forklift to lift and carry the installation device. In a preferred embodiment, the leg assembly 5 includes a leg 2 and a foot 3 connected to the leg 2. Figure 3 As shown, the leg 2 includes a support vertical plate 21 and a support side plate 22. The support vertical plate 21 and the support side plate 22 are perpendicular to each other and are integrally bent from an easily processed metal plate. In order to strengthen the support strength of the leg 2, preferably, at least one of the upper and lower edges of the support vertical plate 21 is provided with a reinforcing flange. The reinforcing flange can be obtained by bending the support vertical plate 21 or by welding a metal plate. The support vertical plate 21 is provided with a through hole for connecting with the support foot 3, and the support side plate 22 is provided with a through hole for connecting with the mounting base 1. During installation, the tops of the support vertical plate 21 and the support side plate 22 extend into the cavity surrounded by the top panel and the side panel of the mounting base along the width direction of the mounting base 1, and then the support side plate 22 and the side surface 13 are fixedly connected with bolts.

[0024] The support foot 3 is connected to the support leg 2, and the support foot 3 is provided with a fixed connection surface 33 for connecting to the frame inside the cabinet. The support foot 3 can be obtained by bending the support vertical plate 21 away from the support side plate 22, and a long hole is provided on the support foot 3 for connecting to the angle steel frame; the support foot 3 can also be a metal plate, which is welded and fixed to the side of the support vertical plate 21 away from the support side plate, and the welding position should meet the requirement of convenient connection between the fixed connection surface 33 thereon and the angle steel frame. In a preferred embodiment, in order to make the support strength of the support leg 2 higher and the support more stable, the support foot 3 includes a side connecting plate 31 and a bottom connecting plate 32, and the side connecting plate 31 and the bottom connecting plate 32 are formed by integrally bending metal plates, and the two are arranged perpendicular to each other. The bottom connecting plate 32 is provided with a long hole for connecting to the switch cabinet frame, and the side connecting plate 31 is provided with a through hole corresponding to the support side plate of the leg 2, and is fixedly connected to the support vertical plate 21 by bolts. In order to further strengthen the strength of the support leg 3, preferably, as Figure 4 As shown, reinforcing side plates 34 are provided at both ends of the supporting leg, and the reinforcing side plates 34 are formed by bending both ends of the side connecting plate 31 at the side where the bottom connecting plate 32 is located.

[0025] like Figure 5 As shown, during installation, the three-phase mutual inductors are sequentially installed on the mounting surface 11 of the mounting device. The mutual inductors and the mounting device together form a mutual inductor mounting module. The fork arm of the forklift is directly extended into the avoidance space 6 of the mutual inductor mounting module, and the mutual inductor mounting module is lifted and carried to the mounting frame in the cabinet. After the entire mutual inductor mounting module is placed on the mounting frame, the fork arm can be withdrawn from the avoidance space, and then the corresponding fixed connection surface 33 on the support foot 3 is fixedly connected to the corresponding position of the mounting frame in the cabinet, thereby completing the installation of the three-phase mutual inductor in the switch cabinet.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A transformer installation device, characterized in that: It comprises a mounting base, the top of which is provided with a mounting surface for mounting a three-phase mutual inductor, the bottom of which is provided with a leg assembly, the bottom of which is provided with a fixed connection surface for connecting to a switch cabinet frame, and an escape space for a forklift's fork arm to extend into and lift the mounting base between the fixed connection surface and the mounting surface.

2. The transformer installation device according to claim 1, characterized in that: The leg assemblies are provided in two groups and are located at both ends of the length direction of the mounting base, and the space enclosed between the two groups of leg assemblies and the mounting base is the avoidance space.

3. The transformer installation device according to claim 2, characterized in that: The mounting base is a square shell-like structure, including a top panel and four side panels, the top panel is the mounting surface, and the top of the leg assembly extends into the cavity surrounded by the top panel and the side panels and is fixedly connected to the side panels.

4. The transformer installation device according to claim 3, characterized in that: The leg assembly comprises a leg and a foot connected to the leg, and the fixed connection surface is arranged on the foot.

5. The transformer installation device according to claim 4, characterized in that: The support leg includes a support vertical plate and support side plates connected to both ends of the support vertical plate, the support vertical plate is perpendicular to the support side plates, the tops of the support vertical plate and the support side plates extend into the cavity surrounded by the top panel and the side panels along the width direction of the mounting base, and are fixedly connected to the two opposite side panels of the mounting base through the two support side plates.

6. The transformer installation device according to claim 5, characterized in that: At least one of the upper and lower edges of the support vertical plate is provided with a reinforcing flange.

7. The transformer installation device according to claim 5, characterized in that: The supporting upright plate and the supporting side plate are an integral bent plate.

8. The transformer installation device according to claim 4, characterized in that: The support leg comprises a side connecting plate connected to the side of the supporting upright plate facing away from the supporting side plate and a bottom connecting plate connected to the side connecting plate, and the lower side of the bottom connecting plate constitutes the fixed connecting surface.

9. The transformer installation device according to claim 8, characterized in that: The side connecting plate and the bottom connecting plate are integrally bent plates.

10. The transformer installation device according to claim 9, characterized in that: Both ends of the side connecting plate are bent to form reinforcing side plates on the side where the bottom connecting plate is located.

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