Protection device for wiring terminal of power transformation equipment

Abstract

The utility model relates to the field of power transformation equipment, and discloses a power transformation equipment wiring terminal protection device, which comprises a wiring terminal body, four cover plates are arranged at the top and the bottom of the wiring terminal body, and the inner sides of the cover plates are in contact with the top and the bottom of the wiring terminal body. Connecting blocks are arranged on the two sides of the cover plate, the bottoms of the connecting blocks and the top of the wiring terminal body are fixedly installed, and one end of each connecting block and the cover plate are rotatably installed through a shaft pin. According to the utility model, through mutual cooperation of the fixing block, the connecting rod, the placing groove and the triangular block, when the inner side of the cover plate is in contact with the top and the bottom of the wiring terminal body, the connecting rod also passes through the fixing block, and after the inner side of the cover plate is in complete contact with the wiring terminal body, the triangular block can be pulled outwards, so that the wiring terminal body is fixed. The triangular block moves towards the outer side to gradually contact with the bottom of the fixed block, so that the cover plate can be limited, and the cover plate is prevented from being separated from the wiring terminal body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power transformation equipment, especially to a power transformation equipment wiring terminal protection device. BACKGROUND

[0002] The substation is the electric power facility of transforming voltage, accepting and distributing electric energy, controlling the flow direction of electric power and adjusting voltage in the electric power system, which connects the power grid of each level voltage through the transformer, and various group construction equipment is needed in the substation, the types of these equipment are more, including transformer, switch, four small devices, reactive device, and other equipment and auxiliary devices, such as wave choke, insulator, high voltage sleeve, guide wire, grounding device, secondary equipment, high voltage direct current equipment, etc., these equipment are collectively referred to as power transformation equipment.

[0003] The wiring terminal is a kind of accessory product for realizing electrical connection, which is divided into the category of connector in industry, with the increasing degree of industrial automation and the increasingly strict and accurate industrial control requirements, the consumption of wiring terminal gradually rises, with the development of electronic industry, the use range of wiring terminal is more and more, and the types are more and more, for example, hardware terminal, nut terminal and limit spring terminal etc.;

[0004] After the production link of the wiring terminal of the power transformation equipment is completed, because the production environment is not completely dust-free, dust particles are easy to enter the inside of the wiring terminal, the internal structure of the wiring terminal is relatively precise, and the wiring pin is the key part for realizing electrical connection with the wire, when dust accumulates in it, it will adhere to the surface of the wiring pin, changes the physical properties of the contact between the pin and the wire, on the one hand, dust will increase the contact resistance, generate more heat when current passes through, which not only reduces the efficiency of electric energy transmission, but also may cause insulation material aging or even fire due to overheating, on the other hand, if dust forms a conductive channel between the pins, it will cause short circuit fault, make the current bypass the normal electric circuit, generate excessive current instantaneously, may burn out the electrical components in the equipment, fuse, and seriously, it will cause the entire power transformation equipment to stop, affect the normal power supply and operation of the numerous electrical equipment connected thereto, bring great inconvenience and economic loss to production and life, therefore, a power transformation equipment wiring terminal protection device is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to make up for the above shortcomings, the utility model provides a substation wiring terminal protection device, aims at improving the dust particle extremely easy to enter the wiring terminal inside in the prior art, dust can increase contact resistance, make more heat when current passes, this not only reduces the electric energy transmission efficiency, also can cause insulation material ageing even fire because of overheating, if dust forms the conductive channel between the pin, will lead to short circuit failure, make the current bypass the normal electric circuit, instantaneous produce too large current, can burn the electric element in the equipment, fuse the fuse, serious time can cause the whole substation shutdown, influence the normal power supply and operation of numerous electric equipment connected therewith, bring great inconvenience and economic loss to the production and life.

[0006] In order to realize the above object, the utility model adopts the following technical scheme:

[0007] A substation wiring terminal protection device, including wiring terminal body, the top and bottom of wiring terminal body are provided with cover plate, the number of cover plate is four, the inner side of cover plate and the top and bottom of wiring terminal body contact, both sides of cover plate are provided with connecting block, the bottom of connecting block and the top of wiring terminal body fixed mounting, one end of connecting block is rotatably installed through shaft pin and cover plate, the top and bottom of wiring terminal body are provided with the limiting assembly for limiting cover plate, the top of wiring terminal body is provided with two groups of wiring ports;

[0008] Further description of the above technical scheme:

[0009] The limiting assembly includes fixed block, the number of fixed block is four, the back of fixed block and the front side of cover plate fixed installation, both sides of the top and bottom of wiring terminal body are fixedly installed with connecting rod, the outer end of connecting rod penetrates to the outer side of fixed block, the inner side of connecting rod is provided with two groups of placing grooves, the triangular block is slidably installed in the inside of placing groove, the outer side of triangular block penetrates to the outer side of connecting rod and is slidably installed with connecting rod, the bottom of triangular block and the bottom of fixed block contact;

[0010] Further description of the above technical scheme:

[0011] The inside of placing groove is slidably installed with rectangular block, the inner side of rectangular block is fixedly installed with limiting spring, the inner end of limiting spring and the inner wall of placing groove are fixedly installed;

[0012] Further description of the above technical scheme:

[0013] The inner side of cover plate is fixedly installed with sealing ring, the bottom of sealing ring and the top and bottom of wiring terminal body contact;

[0014] As a further description of the above technical solutions:

[0015] The top and bottom of the wiring terminal body are provided with rotating rods, two ends of the rotating rods penetrate to the outside of the four groups of connecting blocks and are movably installed with the connecting blocks, and the outer ends of the rotating rods are fixedly installed with the inner side of the cover plate;

[0016] As a further description of the above technical solutions:

[0017] The two sides of the surface of the rotating rod are fixedly installed with clockwork springs, one end of the clockwork spring is fixedly installed with the top and bottom of the wiring terminal body;

[0018] As a further description of the above technical solutions:

[0019] The top and bottom of the wiring terminal body are fixedly installed with protective covers, and the clockwork spring is located in the interior of the protective cover.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、The utility model discloses a fixing block, a connecting rod, a placing groove and a triangular block are matched with each other, when the inner side of the cover plate contacts the top and bottom of the wiring terminal body, the connecting rod also penetrates and is fixed with the fixing block at this time, when the inner side of the cover plate completely contacts the wiring terminal body, the triangular block can be pulled to the outside at this time, the triangular block moves to the outside and gradually contacts the bottom of the fixing block, so that the cover plate can be limited, and the cover plate and the wiring terminal body are prevented from separating.

[0022] 2、The utility model discloses a clockwork spring is set up, can make the connecting rod and the cover plate always bear the elasticity of the clockwork spring, so that the cover plate and the wiring terminal body are more stable when contacting. DRAWINGS

[0023] Figure 1 The utility model discloses a wiring terminal body three-dimensional schematic view is proposed;

[0024] Figure 2 The utility model discloses a wiring terminal body internal structure schematic view is proposed;

[0025] Figure 3 The utility model discloses a cover plate structure schematic view is proposed;

[0026] Figure 4 The utility model discloses a limiting assembly structure schematic view is proposed;

[0027] Figure 5 The utility model discloses a wiring terminal body three-dimensional schematic view is proposed; Figure 1 The utility model discloses a cover plate structure schematic view is proposed;

[0028] Figure 6 The utility model discloses a limiting assembly structure schematic view is proposed;Figure 3 Enlarged structural view at B.

[0029] Legend:

[0030] 1, terminal body; 2, cover plate; 3, connecting block; 4, limiting assembly; 41, fixed block; 42, connecting rod; 43, placing groove; 44, triangular block; 45, rectangular block; 46, limiting spring; 5, sealing ring; 6, rotating rod; 7, clock spring; 8, protective cover; 9, wiring port. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] With reference to Figures 1-6 The utility model provides an embodiment: a kind of terminal protection device of substation equipment, including terminal body 1, the top and bottom of terminal body 1 are provided with cover plate 2, the number of cover plate 2 is four, the inside of cover plate 2 and the top and bottom of terminal body 1 contact, the both sides of cover plate 2 are provided with connecting block 3, the bottom of connecting block 3 and the top of terminal body 1 are fixedly installed, one end of connecting block 3 is rotatably installed by shaft pin and cover plate 2, the top and bottom of terminal body 1 are provided with limiting assembly 4 for limiting cover plate 2, the top of terminal body 1 is provided with two groups of wiring port 9, to prevent dust from entering into wiring port 9, at this time, cover plate 2 can be turned inside, the inside of cover plate 2 can contact with the top and bottom of terminal body 1, at this time, cover plate 2 can be limited by limiting assembly 4, prevent cover plate 2 from appearing to shake.

[0033] With reference to Figures 1-6The limiting assembly 4 comprises four fixed blocks 41, the back surface of the fixed blocks 41 is fixedly installed on the front side of the cover plate 2, the two sides of the top and bottom of the wiring terminal body 1 are fixedly installed with connecting rods 42, the outer end of the connecting rod 42 penetrates to the outer side of the fixed block 41, the inner side of the connecting rod 42 is provided with two groups of placing grooves 43, the triangular block 44 is slidably installed in the placing groove 43, the outer side of the triangular block 44 penetrates to the outer side of the connecting rod 42 and is slidably installed with the connecting rod 42, the bottom of the triangular block 44 is in contact with the bottom of the fixed block 41, through the cooperation of the fixed block 41, the connecting rod 42, the placing groove 43 and the triangular block 44, when the inner side of the cover plate 2 is in contact with the top and bottom of the wiring terminal body 1, at this time the connecting rod 42 also penetrates and the fixed block 41, when the inner side of the cover plate 2 is in contact with the wiring terminal body 1, at this time the triangular block 44 can be pulled outward, the triangular block 44 moves outward and gradually contacts the bottom of the fixed block 41, so that the cover plate 2 can be limited, preventing the cover plate 2 and the wiring terminal body 1 from being separated, the rectangular block 45 is slidably installed in the placing groove 43, the inner side of the rectangular block 45 is fixedly installed with the limiting spring 46, the inner end of the limiting spring 46 is fixedly installed with the inner wall of the placing groove 43, through the cooperation of the rectangular block 45 and the limiting spring 46, the rectangular block 45 and the triangular block 44 are always subjected to the elastic force of the limiting spring 46, so that the bottom of the triangular block 44 and the top of the fixed block 41 are in contact more stably, the inner side of the cover plate 2 is fixedly installed with the sealing ring 5, the bottom of the sealing ring 5 is in contact with the top and bottom of the wiring terminal body 1, through the setting of the sealing ring 5, when the inner side of the cover plate 2 is in contact with the wiring terminal body 1, at this time the inner side of the sealing ring 5 also contacts the wiring terminal body 1, thereby improving the sealing performance of the wiring terminal body 1.

[0034] Referring to Figures 1-6 The top and bottom of the wiring terminal body 1 are provided with rotating rods 6, the two ends of the rotating rod 6 penetrate to the outer side of the four groups of connecting blocks 3 and are movably installed with the connecting block 3, the outer end of the rotating rod 6 is fixedly installed with the inner side of the cover plate 2, through the setting of the rotating rod 6, when one of the cover plates 2 is rotated, the rotating rod 6 can be rotated, the rotating rod 6 drives the other cover plate 2 to rotate, thereby improving the efficiency of rotating the cover plate 2, the two sides of the surface of the rotating rod 6 are fixedly installed with the clock spring 7, one end of the clock spring 7 is fixedly installed with the top and bottom of the wiring terminal body 1, through the setting of the clock spring 7, the connecting rod 42 and the cover plate 2 are always subjected to the elastic force of the clock spring 7, so that the cover plate 2 and the wiring terminal body 1 are in contact more stably, the top and bottom of the wiring terminal body 1 are fixedly installed with the protective cover 8, the clock spring 7 is located in the protective cover 8, through the setting of the protective cover 8, the clock spring 7 can be limited, preventing the clock spring 7 from deforming when being compressed, thereby unable to reset.

[0035] Working principle: after the completion of the manufacturing process of the terminal body 1, in order to effectively prevent dust from entering the inside, first of all, the elastic force characteristics of the clock spring 7 are used to drive the rotating rod 6 and the cover plate 2, so that the cover plate 2 is driven by the elastic force to tightly fit the sealing ring 5 connected thereto on the surface of the terminal body 1, thereby forming a reliable dustproof barrier to effectively prevent dust from entering the inside of the terminal body 1. When the terminal body 1 needs to be transported, due to the possibility of various bumps, collisions and other situations during transportation, in order to prevent the cover plate 2 from being separated from the terminal body 1 due to accidental factors, special limiting operation needs to be performed on the cover plate 2. At this time, the cover plate 2 is turned inward, and the fixed block 41 fixedly connected with the cover plate 2 moves towards the top. At the same time, the top of the connecting rod 42 gradually penetrates the fixed block 41. In this process, the triangular block 44 is forced to move inward and gradually enter the placing groove 43 due to the extrusion of the fixed block 41 when the top of the triangular block 44 moves upward. When the triangular block 44 is completely and smoothly placed in the placing groove 43, the connecting rod 42 can completely penetrate the fixed block 41. In the whole process, the rectangular block 45 and the triangular block 44 are always subjected to the elastic force of the limiting spring 46. Once the connecting rod 42 successfully penetrates the fixed block 41, the triangular block 44 will move outward under the elastic force driving of the limiting spring 46 until the triangular block 44 gradually contacts the top of the fixed block 41. In this way, the cover plate 2 is effectively limited, and the cover plate 2 is effectively prevented from being separated from the terminal body 1 during transportation, thereby ensuring the integrity and protection performance of the terminal body 1 during transportation.

[0036] Finally, it should be pointed out that: the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A protection device for electrical connection terminals of a power transformation device, comprising a body (1) of electrical connection terminals, characterized in that: The top and bottom of the terminal body (1) are provided with cover plates (2), the number of the cover plates (2) is four, the inner side of the cover plate (2) is in contact with the top and bottom of the terminal body (1), both sides of the cover plate (2) are provided with connecting blocks (3), the bottom of the connecting block (3) is fixedly installed on the top of the terminal body (1), one end of the connecting block (3) is rotatably installed on the cover plate (2) through an axle pin, the top and bottom of the terminal body (1) are provided with limiting assemblies (4) for limiting the cover plate (2), and two groups of terminal ports (9) are formed in the top of the terminal body (1).

2. A power transformation equipment terminal protection device according to claim 1, characterized in that: The limiting assembly (4) comprises a fixed block (41), the number of the fixed block (41) is four, the back of the fixed block (41) is fixedly installed on the front side of the cover plate (2), connecting rods (42) are fixedly installed on both sides of the top and bottom of the terminal body (1), the outer end of the connecting rod (42) penetrates to the outer side of the fixed block (41), two groups of placing grooves (43) are formed in the inner side of the connecting rod (42), triangular blocks (44) are slidably installed in the placing grooves (43), the outer side of the triangular block (44) penetrates to the outer side of the connecting rod (42) and is slidably installed on the connecting rod (42), and the bottom of the triangular block (44) is in contact with the bottom of the fixed block (41).

3. A power transformer terminal protection device according to claim 2, characterized in that: The placing groove (43) is slidably installed with a rectangular block (45), the inner side of the rectangular block (45) is fixedly installed with a limiting spring (46), and the inner end of the limiting spring (46) is fixedly installed on the inner wall of the placing groove (43).

4. A power transformation equipment terminal protection device according to claim 1, characterized in that: The inner side of the cover plate (2) is fixedly installed with a sealing ring (5), and the bottom of the sealing ring (5) is in contact with the top and bottom of the terminal body (1).

5. A power transformation equipment terminal protection device according to claim 1, characterized in that: The top and bottom of the terminal body (1) are provided with rotating rods (6), both ends of the rotating rod (6) penetrate to the outer side of the four groups of connecting blocks (3) and are movably installed on the connecting blocks (3), and the outer end of the rotating rod (6) is fixedly installed on the inner side of the cover plate (2).

6. A power transformer terminal protection device according to claim 5, characterized in that: The surface of the rotating rod (6) is fixedly installed with a clock spring (7), and one end of the clock spring (7) is fixedly installed on the top and bottom of the terminal body (1).

7. A power transformer terminal protection device according to claim 6, characterized in that: The top and bottom of the terminal body (1) are fixedly installed with protective covers (8), and the clock spring (7) is located in the protective cover (8).

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