Resistor lifting lug structure and resistor

Abstract

The utility model belongs to the field of box type resistors, and particularly relates to a resistor lifting lug structure and a resistor, the lifting lug structure is arranged on the side wall of an outer frame of a resistor box body and comprises a lifting fixing plate and a lifting plate; the lifting fixing plate and the lifting plate are fixed to the side wall of the box body outer frame, and the lifting plate is connected to the outer portion of the lifting fixing plate in a sleeving mode. A hoisting hole is formed in the hoisting plate and is used for hoisting the resistor; the resistor lifting lug structure is mounted on the side wall of the outer frame of the resistor box body. Compared with the prior art, the hoisting fixing plate and the hoisting hanging plate are both made of metal plates and are mainly processed by a laser machine tool and a bending machine, so that the processing is convenient, and whether the hoisting fixing plate and the hoisting hanging plate are disassembled or not after hoisting does not influence the height size change of the resistor, therefore, the height size out-of-tolerance does not need to be considered, and the disassembly is not needed.

Description

Technical Field

[0001] This utility model belongs to the field of box-type resistors, specifically relating to a resistor lifting lug structure and a resistor. Background Technology

[0002] like Figure 1 As shown, resistors are often used on subway trains, primarily to reduce overvoltage when electric braking or mains voltage exceeds permissible limits by switching on the braking resistor. The standard lifting device for roof-mounted box-type resistors typically features lifting holes on the top for personnel to use eye bolts for hoisting and unloading. These eye bolts are installed on the top of the roof plate. After hoisting and unloading, if disassembly is not required, it will affect the product's maximum height and dimensions. If disassembly is necessary, repeated disassembly is required. Considering the product's special requirements to meet IP20 standards, any excess mounting holes after disassembly must be sealed, typically using fasteners of appropriate specifications.

[0003] However, equipping each product with four eye bolts undoubtedly increases product cost. On the other hand, if eye bolts are disassembled in batches for shared use, it will lead to additional waste of human resources.

[0004] Therefore, there is an urgent need for a resistor lifting structure that can be assembled on a box-type resistor to solve a series of problems caused by the existing lifting ring structure. Utility Model Content

[0005] The purpose of this utility model is to provide a resistor lifting lug structure and a resistor in order to solve at least one of the above-mentioned problems. This solves the problem that in the prior art, the lifting ring structure will affect the height dimension if it is not disassembled, and disassembly requires sealing. This invention realizes a lifting lug structure that can be used for lifting resistors without considering the height dimension deviation and therefore does not require disassembly.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] The first aspect of this utility model proposes a resistor lifting lug structure, wherein the lifting lug structure is installed on the side wall of the outer frame of the resistor box and includes a lifting fixing plate and a lifting plate.

[0008] The lifting fixing plate and the lifting plate are fixed to the side wall of the outer frame of the box, and the lifting plate is sleeved on the outside of the lifting fixing plate;

[0009] The lifting plate is provided with lifting holes for lifting the resistor.

[0010] Furthermore, the lifting fixing plate has a U-shaped structure, with its bottom surface fixed to the side wall of the outer frame of the box, and its two sides perpendicular to the side wall of the outer frame of the box, for connecting with the lifting plate.

[0011] Furthermore, the lifting plate has a U-shaped structure with two sides perpendicular to the outer frame sidewall of the box and sleeved on the outside of the lifting fixing plate. The two sides of the lifting plate extend outward to form mounting parts that are tightly attached to the outer frame sidewall of the box, and the mounting parts are fixedly connected to the outer frame sidewall of the box.

[0012] Furthermore, the distance between the inner surfaces of the two sides of the lifting plate is greater than or equal to the distance between the outer surfaces of the two sides of the lifting fixing plate.

[0013] Furthermore, the lifting holes are provided in multiple locations, symmetrically arranged on the sides of both sides of the lifting plate.

[0014] Furthermore, there are two lifting holes, symmetrically arranged on the sides of the lifting plate.

[0015] Furthermore, the lifting fixing plate and the lifting plate are fixedly connected by welding or fasteners.

[0016] Furthermore, the lifting fixing plate and the lifting plate are fixed to the side wall of the outer frame of the box by fasteners.

[0017] Furthermore, the lifting fixing plate and the lifting plate are fixed to the outer frame side wall of the box by at least two fasteners; the lifting fixing plate and the lifting plate are fixedly connected by at least two fasteners.

[0018] Furthermore, the fastener is a rivet, preferably a blind rivet.

[0019] Furthermore, the fastener is a bolt.

[0020] Furthermore, the lifting fixing plate and the lifting hanging plate are made of sheet metal.

[0021] The second aspect of this utility model provides a resistor in which a resistor lifting lug structure as described above is installed on the side wall of the outer frame of the resistor housing.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. This utility model proposes a lifting lug structure that is fixedly installed around the periphery of a box-type resistor. The lifting fixing plate and the lifting plate are fixed to the side wall of the outer frame of the resistor box by rivets, and the lifting fixing plate and the lifting plate are fixedly connected. In actual operation, the box-type resistor can be lifted by lifting the lifting lug structure. After the lifting is completed, whether or not it is disassembled does not affect the change of the height dimension of the resistor. Therefore, there is no need to consider the height dimension deviation and there is no need to disassemble.

[0024] 2. The lifting fixing plate and lifting plate of this utility model are both made of sheet metal and processed mainly by laser machine tools and bending machines. The processing is convenient and the size of the lifting fixing plate and lifting plate can be adjusted according to the size and weight of the rheostat. This effectively solves the problems of long procurement cycle and high price of lifting structure.

[0025] 3. Compared with the existing lifting ring structure, the lifting lug structure proposed in this utility model is lightweight, which can effectively reduce the overall product weight and achieve cost reduction. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a lifting structure using eye bolts in the prior art.

[0027] Figure 2 This is a schematic diagram of the resistor lifting lug structure of this utility model.

[0028] Figure 3 This is an exploded view of the resistor lifting lug structure of this utility model.

[0029] In the diagram: 1-Lifting fixing plate; 2-Lifting lifting plate; 3-Lifting hole; 4-Fixing component; 5-Side wall of the resistor box outer frame. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Unless otherwise specified, the functional components or structures in the following embodiments or examples are conventional components or structures used in the art to achieve the corresponding functions.

[0034] Example 1

[0035] This embodiment provides a resistor lifting lug structure, which is installed on the side wall 5 of the outer frame of the resistor box and includes a lifting fixing plate 1 and a lifting plate 2.

[0036] The lifting fixing plate 1 and the lifting plate 2 are fixed on the side wall 5 of the outer frame of the box, and the lifting plate 2 is sleeved on the outside of the lifting fixing plate 1;

[0037] The lifting fixing plate 1 has a U-shaped structure, with its bottom surface fixed to the side wall 5 of the outer frame of the box, and its two sides perpendicular to the side wall 5 of the outer frame of the box, for use in connection with the lifting plate 2.

[0038] The lifting plate 2 has a U-shaped structure, with its two sides perpendicular to the outer frame side wall 5 of the box and sleeved on the outside of the lifting fixing plate 1. The two sides of the lifting plate 2 extend outward to form mounting parts that are close to the outer frame side wall 5 of the box, and the mounting parts are fixedly connected to the outer frame side wall 5 of the box.

[0039] The upper part of the lifting plate 2 has a pre-reserved lifting hole 3 for lifting the resistor.

[0040] The distance between the inner surfaces of the two sides of the lifting plate 2 is greater than or equal to the distance between the outer surfaces of the two sides of the lifting fixing plate 1.

[0041] There are two lifting holes 3, which are symmetrically arranged on the sides of the lifting plate 2. The diameter of the lifting holes is 18mm.

[0042] The lifting plate 1 is fixed to the outer frame side wall 5 of the box by two fasteners 4; each side of the lifting plate 2 is fixed to the outer frame side wall 5 of the box by three fasteners 4; each side of the lifting plate 1 is fixed to each side of the lifting plate 2 by two fasteners 4.

[0043] The fastener 4 is a blind rivet with a diameter of 6.4 mm.

[0044] The lifting fixing plate 1 and the lifting plate 2 are manufactured by sheet metal. The lifting fixing plate 1 has a thickness of 2.0 mm, and the lifting plate 2 has a thickness of 3.0 mm.

[0045] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A resistor lifting lug structure, characterized in that, The lifting lug structure is installed on the side wall (5) of the outer frame of the resistor box, including a lifting fixing plate (1) and a lifting plate (2); The lifting fixing plate (1) and the lifting plate (2) are fixed on the side wall (5) of the outer frame of the box, and the lifting plate (2) is sleeved on the outside of the lifting fixing plate (1); The lifting plate (2) is provided with lifting holes (3) for lifting resistors.

2. The resistor lifting lug structure according to claim 1, characterized in that, The lifting fixing plate (1) has a U-shaped structure. Its bottom surface is fixed on the side wall (5) of the outer frame of the box, and its two sides are set perpendicular to the side wall (5) of the outer frame of the box for connecting with the lifting plate (2).

3. The resistor lifting lug structure according to claim 2, characterized in that, The lifting plate (2) is a U-shaped structure with its two sides perpendicular to the outer frame sidewall (5) of the box and sleeved on the outside of the lifting fixing plate (1). The two sides of the lifting plate (2) extend outward to form mounting parts that are close to the outer frame sidewall (5) of the box, and the mounting parts are fixedly connected to the outer frame sidewall (5).

4. The resistor lifting lug structure according to claim 3, characterized in that, The distance between the inner surfaces of the two sides of the lifting plate (2) is greater than or equal to the distance between the outer surfaces of the two sides of the lifting fixing plate (1).

5. A resistor lifting lug structure according to claim 2, characterized in that, The lifting holes (3) are multiple and symmetrically arranged on the sides of the lifting plate (2).

6. The resistor lifting lug structure according to claim 1, characterized in that, The lifting fixing plate (1) and the lifting plate (2) are fixedly connected by welding or fasteners (4).

7. The resistor lifting lug structure according to claim 1, characterized in that, The lifting fixing plate (1) and the lifting plate (2) are fixed to the outer frame side wall (5) of the box by fasteners (4).

8. A resistor lifting lug structure according to claim 6 or 7, characterized in that, The fastener (4) is a rivet.

9. A resistor lifting lug structure according to claim 6 or 7, characterized in that, The fastener (4) is a bolt.

10. A resistor, characterized in that, The resistor housing outer frame side wall (5) is equipped with a resistor lifting lug structure as described in claim 1.

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