Mutual inductor tray with stepped clamping table design and operation method

Abstract

The invention discloses a mutual inductor tray with a stepped clamping table design and an operation method, and relates to the technical field of mutual inductor trays, the mutual inductor tray comprises a main body assembly, and the main body assembly comprises a tray seat and a buffer piece; the fastening assembly comprises a primary locking piece and a secondary locking piece. Two pressing rods are extruded when the mutual inductor is placed, then two main pistons of the primary locking piece can be pressed downwards at the same time, two auxiliary pistons can slide close to each other, abutting rods on the two sides can be close to each other, friction contact teeth can be extruded on the surface of the mutual inductor, and extrusion positioning of the mutual inductor is achieved; the mutual inductor clamping looseness caused by unstable air pressure in the connecting guide pipe is avoided, the two sides of the mutual inductor are further stably clamped through the pressing rods, the mutual inductor is not prone to overturning, normal proceeding of follow-up detection work is not affected, meanwhile, through cooperation of the buffer springs and the dampers, the whole tray base can be subjected to buffer protection, and the working efficiency is improved. And meanwhile, the mutual inductor above can be buffered and protected.

Description

Technical Field

[0001] This invention relates to the field of current transformer tray technology, and specifically to a current transformer tray with a stepped tray design and its operation method. Background Technology

[0002] Traditional instrument transformer calibration typically involves manually placing the transformer onto a tooling tray before calibration. Therefore, traditional tooling trays only consist of an insulating base and a tooling body positioned on the base. Furthermore, the tooling body is generally a flat plate structure, serving only a supporting function. This makes it difficult to automatically position the transformer after placement, increasing the risk of tipping over during transport and affecting subsequent testing. Therefore, this invention proposes a stepped-type tray design for instrument transformers to address these issues. Summary of the Invention

[0003] In view of the problems existing in the prior art, the present invention is proposed.

[0004] Therefore, the technical problem to be solved by the present invention is that after the current transformer is placed on the tray, it is not convenient to automatically position the current transformer, which makes the current transformer prone to tipping over during transportation and testing.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a current transformer tray with a stepped card plate design, comprising a main body assembly, wherein the main body assembly includes a tray base and a buffer component, and the tray base is connected to the buffer component;

[0006] A fastening assembly, which is connected to the main body assembly, includes a primary locking member and a secondary locking member. The primary locking member is connected to the tray seat, and the secondary locking member is connected to the primary locking member.

[0007] As a preferred embodiment of the current transformer tray of the stepped card platform design described in this invention, the primary locking component includes a main piston cylinder, a connecting conduit, and a secondary piston cylinder. The main piston cylinder is disposed on the side wall of the tray seat, and one end extends into the inner cavity of the tray seat. The connecting conduit connects one end of the main piston cylinder extending into the tray seat and the other end connects to the secondary piston cylinder.

[0008] The auxiliary piston cylinder is disposed inside the side plate of the tray seat, and the connecting conduit is sealed to the main piston cylinder and the auxiliary piston cylinder.

[0009] As a preferred embodiment of the current transformer tray of the stepped card platform design described in this invention, the main piston cylinder is provided with a main piston, an upper magnetic ring, a lower magnetic ring and a pressure rod in its inner cavity. The main piston is in close contact with the inner wall of the main piston cylinder. A lower magnetic ring is provided on one side of the main piston. The lower magnetic ring is connected to the inner wall of the main piston cylinder through a support block. An upper magnetic ring is provided on one side of the lower magnetic ring. The upper magnetic ring is connected to the lower magnetic ring through a pressure rod, and the pressure rod passes through and connects the upper magnetic ring and the lower magnetic ring.

[0010] The sides of the upper and lower magnetic rings that are close to each other are the same magnetic poles.

[0011] As a preferred embodiment of the current transformer tray of the stepped card platform design described in this invention, the secondary locking component includes a fixing plate, a pressure plate, a top rod, and a push rod. The fixing plate is disposed on the side wall of the tray seat. One end of the pressure plate is disposed in the inner cavity of the fixing plate and connected to the inner cavity of the fixing plate through a rotating rod and a torsion spring. The other end extends out of the outside of the fixing plate and is connected to one end of the pressure rod.

[0012] One end of the push rod is located inside the cavity of the fixed plate, and the other end extends out of the outside of the fixed plate. The end of the push rod located inside the fixed plate is connected to the pressure plate, and the other end is connected to the push rod.

[0013] As a preferred embodiment of the current transformer tray of the stepped card platform design described in this invention, the side wall of the push rod is connected to the base through a connecting rod and a spring, and one end of the push rod is provided with an inclined surface, which matches the inclined surface of the top rod.

[0014] As a preferred embodiment of the current transformer tray of the stepped card platform design described in this invention, the side wall of the fixing plate is provided with a conduit support, and the conduit support is connected to the connecting conduit.

[0015] As a preferred embodiment of the current transformer tray of the stepped card platform design described in this invention, the inner cavity of the secondary piston cylinder is provided with a secondary piston, a rod is provided on one side of the secondary piston, and friction pads are provided at the ends of the rods, with friction contact teeth fixed on the sides of the friction pads.

[0016] The inner wall of the main piston cylinder is fixed with a main stop block to block the main piston, and auxiliary stop blocks are fixed on both sides of the auxiliary piston.

[0017] As a preferred embodiment of the current transformer tray of the stepped card platform design described in this invention, the buffer includes insulating contact plates disposed on both sides below the tray base, and dampers are fixed between the insulating contact plates and the tray base, and buffer springs are sleeved on the surface of the dampers.

[0018] The side wall of the tray seat is provided with positioning posts.

[0019] Another object of the present invention is to provide a method for operating a current transformer tray with a stepped card slot design, which includes the following steps:

[0020] Place the current transformer in the tray base;

[0021] The primary and secondary locking components are pressed to position the current transformer.

[0022] Monitoring work begins.

[0023] As a preferred embodiment of the current transformer tray operation method of the stepped card table design described in this invention, when the current transformer is engaged in the arc-shaped slot on the side plate of the tray seat, the positioning post is also engaged in the opening on the current transformer.

[0024] The beneficial effects of this invention are as follows: By pressing the two pressure rods with the current transformer, the two main pistons can be pressed down simultaneously. To ensure the air pressure balance inside the conduit and the symmetrical conduit, the auxiliary pistons inside the two symmetrical conduits can slide close to each other, which in turn allows the abutment rods on both sides to move closer to each other. This allows the friction contact teeth on the friction pad to press against the surface of the current transformer, achieving compression and positioning of the current transformer. This makes it less likely for the current transformer to tip over. The secondary locking device prevents the current transformer from being loosened due to unstable air pressure inside the connecting conduit. Furthermore, the pressure rods are used to firmly clamp the two sides of the current transformer without affecting the normal operation of subsequent testing. At the same time, the cooperation of the buffer spring and the damper can provide buffer protection for the entire tray seat and the current transformer above it. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall device of the present invention.

[0027] Figure 2 This is a schematic diagram of the secondary locking component of the present invention.

[0028] Figure 3 This is a schematic diagram of the internal structure of the secondary locking component of the present invention.

[0029] Figure 4 This is a partial structural schematic diagram of the present invention.

[0030] Figure 5This is a schematic diagram of the primary locking component of the present invention.

[0031] Figure 6 This is a schematic diagram of the locking component and connecting conduit of the present invention.

[0032] Figure 7 This is a schematic cross-sectional view of the auxiliary piston cylinder of the present invention. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0036] Example 1

[0037] Reference Figure 1 - Figure 4 This is the first embodiment of the present invention. This embodiment provides a stepped tray for current transformers, including a main body component 100 and a fastening component 200. The current transformer body is placed on the main body component 100, and the fastening component 200 squeezes, positions, and firmly clamps the current transformer body by pressing it down. This solves the problem that existing current transformer trays can only place a single current transformer body, and it is difficult to maintain stability during the testing and transportation of current transformers, which easily leads to the risk of the current transformer tipping over and increases the risk of damage to the current transformer.

[0038] Specifically, the main component 100 includes a hollowed-out tray base 101 and a buffer component 102. The tray base 101 is connected to the buffer component 102. The top of the tray base 101 has a placement slot for placing the current transformer. The top of the tray base 101 is fixed with two side plates 101a. The two side plates 101a are symmetrically arranged. The top of each side plate 101a has a stepped arc-shaped slot. The bottom sides of the tray base 101 are fixed with anti-collision buffer blocks to protect the tray base 101.

[0039] Furthermore, the fastening assembly 200 is connected to the main assembly 100 and is disposed on both sides of the tray base 101. It includes a primary locking component 201 and a secondary locking component 202. The primary locking component 201 is connected to the tray base 101, and the secondary locking component 202 is connected to the primary locking component 201. Through the cooperation of the primary locking component 201 and the secondary locking component 202, the current transformer body can be effectively clamped and stabilized under pressure when placed on the tray base 101. This prevents tipping during testing and handling, thereby improving work efficiency.

[0040] Specifically, during use, the current transformer body is placed into the hollow slot in the tray seat 101. At this time, the bottom of the current transformer body abuts against the primary locking member 201, causing the primary locking member 201 to lock. At the same time, the locking of the primary locking member 201 drives the secondary locking member 202 to further clamp and compress the current transformer body for stability. The two clamping and stabilizing actions allow the current transformer body to be better positioned inside the tray seat 101, minimizing the risk of tipping over during transportation and testing. Meanwhile, the buffer member 102 located at the bottom of the tray seat 101 can also buffer and reduce shock on the upper part of the tray seat 101, further stabilizing the placement of the current transformer body inside the tray seat 101.

[0041] Example 2

[0042] Reference Figure 1 - Figure 7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0043] Specifically, the primary locking component 201 includes a main piston cylinder 201a, a connecting conduit 201b, and a secondary piston cylinder 201c. The main piston cylinder 201a is disposed on the bottom side wall of the tray seat 101, with one end extending into the bottom cavity of the tray seat 101. The symmetrically bent connecting conduit 201b connects to one end of the main piston cylinder 201a extending into the tray seat 101, and the other end connects to the secondary piston cylinder 201c. The secondary piston cylinder 201c is disposed inside the side plate 101a of the tray seat 101, and the connecting conduit 201b is sealed to the main piston cylinder 201a and the secondary piston cylinder 201c.

[0044] It should be noted that the air pressure in the main piston cylinder 201a, the connecting conduit 201b and the auxiliary piston cylinder 201c remains stable, and all connections remain sealed. At the same time, the amount of air pressure loss in the three cylinders through the connecting conduit 201b does not affect the movement of the main and auxiliary pistons.

[0045] Furthermore, the inner cavity of the main piston cylinder 201a is provided with a main piston 201a-1, an upper magnetic ring 201a-2, a lower magnetic ring 201a-3, and a pressure rod 201a-4. The main piston 201a-1 is fitted and connected to the inner wall of the main piston cylinder 201a. The up and down movement of the main piston 201a-1 pushes the gas in the main piston cylinder 201a to flow to the connecting conduit. A lower magnetic ring 201a-3 is provided on the upper side of the main piston 201a-1. The lower magnetic ring 201a-3 is connected to the inner wall of the main piston cylinder 201a through a support block 201a-3a. An upper magnetic ring 201a-2 is provided on the upper side. The upper magnetic ring 201a-2 is connected to the lower magnetic ring 201a-3 through a pressure rod 201a-4. The pressure rod 201a-4 passes through and connects the upper magnetic ring 201a-2 and the lower magnetic ring 201a-3. The pressure rod 201a-4 is fixedly connected to the upper magnetic ring 201a-2 and movably connected to the side wall of the lower magnetic ring 201a-3. When the pressure rod 201a-4 moves downward, it drives the upper magnetic ring 201a-2 to move closer to the lower magnetic ring 201a-3. The position of the lower magnetic ring 201a-3 remains unchanged due to the setting of the support block 201a-3a.

[0046] Preferably, the sides of the upper magnetic ring 201a-2 and the lower magnetic ring 201a-3 that are close to each other are the same magnetic poles. That is, when the upper magnetic ring 201a-2 approaches the lower magnetic ring 201a-3, after the pressure rod 201a-4 loses its downward pressure, the positional relationship between the upper and lower magnetic rings will return to its initial state due to the repulsion of the like magnetic rings, which can also drive the piston to return to its position.

[0047] Furthermore, the secondary locking component 202 includes a fixing plate 202a, a pressure plate 202b, a push rod 202c, and a push rod 202d. The two fixing plates 202a are disposed on the side wall of the tray seat 101 and are fixedly connected to the side wall of the tray seat 101. One end of the pressure plate 202b is disposed in the inner cavity of the fixing plate 202a and is connected to the inner cavity of the fixing plate 202a through a rotating rod and a torsion spring. The other end extends out of the outside of the fixing plate 202a and is connected to the top end of the pressure rod 201a-4.

[0048] When the transformer body is placed into the tray seat 101, the pressure plate 202b is first applied to the side wall, and then the pressure plate 202b transmits the pressure to the pressure rod 201a-4. At this time, the pressure plate 202b will rotate around the rotating rod and the torsion spring, causing its other end to lift up.

[0049] Furthermore, one end of the push rod 202c is located inside the cavity of the fixed plate 202a, and the other end extends out of the outside of the fixed plate 202a. The end of the push rod 202c located inside the fixed plate 202a abuts against the pressure plate 202b, and the other end abuts against the push rod 202d.

[0050] When the inner end of the pressure plate 202b tilts up, it pushes one end of the push rod 202c, causing the push rod 202c to lift upwards, and then pushes the push rod 202d to move closer to the side wall of the transformer body, thus clamping and stabilizing the side wall of the transformer body.

[0051] Preferably, the side wall of the push rod 202d is connected to the base 202d-1 via a connecting rod and a spring. One end of the push rod 202d is provided with a first inclined surface 202d-2, which matches the second inclined surface 202c-1 at one end of the push rod 202c. When the push rod 202c moves upward, the second inclined surface 202c-1 pushes the first inclined surface 202d-2, causing the push rod 202d to move outward. At this time, the connecting rod stretches the spring. When the force of the push rod 202c disappears, the push rod 202d will return to its original position under the action of the spring.

[0052] Preferably, the side wall of the fixing plate 202a is provided with a conduit support 202a-1, which is connected to the connecting conduit 201b.

[0053] Furthermore, the inner cavity of the auxiliary piston cylinder 201c is provided with an auxiliary piston 201c-1, a push rod 201c-2 on one side of the auxiliary piston 201c-1, and friction pads 201c-2a are provided at the ends of the push rods 201c-2. Friction contact teeth 201c-2b are fixed on the side of the friction pads 201c-2a. When the main piston 201a-1 presses down to push the gas, the gas pressure in the connecting conduit 201b needs to be kept balanced, so the gas pressure will push the auxiliary piston 201c-1 to move outward. The auxiliary piston 201c-1 then drives the push rod 201c-2 to move outward, so that the friction pads 201c-2a and friction contact teeth 201c-2b clamp the transformer body.

[0054] Preferably, the inner wall of the main piston cylinder 201a is fixed with a main stop block 201a-1a to block the main piston 201a-1, and the two sides of the auxiliary piston 201c-1 are fixed with auxiliary stop blocks 201c-1a, so that the main and auxiliary pistons are limited when they move.

[0055] It should be noted that the secondary locking component 202 works in conjunction with the primary locking component 201. The primary locking component 201 maintains a balance of air pressure inside the connecting conduit 201b, allowing the auxiliary piston 201c-1 to push out and clamp the transformer body onto the side wall within the arc-shaped slot after the main piston 201a-1 is compressed. The secondary locking component 202, through the pressure plate 202, drives the push rod 202 to squeeze and clamp the side wall of the transformer body. The secondary locking component 202 serves as an auxiliary component to the primary locking component 201 and also as a safety measure for the primary locking component 201. When the air pressure inside the primary locking component 201 becomes insufficient or it does not return to its initial position after prolonged and frequent use, the secondary locking component 202 can quickly enter the working state to ensure normal operation.

[0056] Preferably, the buffer 102 includes insulating contact plates 102a disposed on both sides below the tray seat 101. A damper 102b is fixed between the insulating contact plate 102a and the tray seat 101. A buffer spring 102c is sleeved on the surface of the damper 102b, which can buffer and protect the entire tray seat 101, and at the same time buffer and protect the current transformer body above it.

[0057] Preferably, the side wall of the tray base 101 is provided with a positioning post 101b, which can cooperate with the hole below the current transformer to perform preliminary positioning of the current transformer.

[0058] During operation, the current transformer body is placed in the placement slot so that it fits snugly against the stepped arc-shaped slots of the two side plates 101a. During placement, the current transformer will press against the two pressure rods 201a-4 and the pressure plate 202b, thereby causing the two main pistons 201a-1 to press down simultaneously. To ensure the air pressure balance inside the connecting conduit 201b, the two auxiliary pistons 201c-1 can slide closer to each other, which in turn causes the abutment rods 201c-2 on both sides to move closer to each other. As a result, the friction contact teeth 201c-2b on the friction pad 201c-2a can press against the surface of the current transformer, achieving compression and positioning of the current transformer. This prevents the current transformer from tipping over and does not affect the normal operation of subsequent testing.

[0059] Example 3

[0060] Reference Figure 1 - Figure 7 This is the third embodiment of the present invention, which provides a method for operating a current transformer tray with a stepped card platform design.

[0061] Specifically, the steps include the following:

[0062] First, place the current transformer on the tray base 101 so that the current transformer body is placed into the built-in slot of the tray base 101;

[0063] The compression of the transformer body causes the primary locking member 201 and the secondary locking member 202 to be compressed and positioned to compress the transformer.

[0064] Monitoring work begins.

[0065] It should be noted that when the current transformer is engaged in the arc-shaped slot on the side plate 101a of the tray seat 101, the positioning post 101b is also engaged in the opening on the current transformer. The position of the positioning post 101b is designed and positioned according to the specific shape of the current transformer.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A current transformer tray with a stepped card slot design, characterized in that: include, The main component (100) includes a tray base (101) and a buffer (102), wherein the tray base (101) and the buffer (102) are connected; Fastening assembly (200), which is connected to the main body assembly (100), includes a primary locking member (201) and a secondary locking member (202). The primary locking member (201) is connected to the tray seat (101), and the secondary locking member (202) is connected to the primary locking member (201).

2. The current transformer tray with a stepped card slot design as described in claim 1, characterized in that: The primary locking component (201) includes a main piston cylinder (201a), a connecting conduit (201b), and a secondary piston cylinder (201c). The main piston cylinder (201a) is disposed on the side wall of the tray seat (101), with one end extending into the inner cavity of the tray seat (101). The connecting conduit (201b) connects to one end of the main piston cylinder (201a) extending into the tray seat (101), and the other end connects to the secondary piston cylinder (201c). The auxiliary piston cylinder (201c) is disposed inside the side plate (101a) of the tray seat (101), and the connecting conduit (201b) is sealed to the main piston cylinder (201a) and the auxiliary piston cylinder (201c).

3. The current transformer tray with a stepped card slot design as described in claim 2, characterized in that: The inner cavity of the main piston cylinder (201a) is provided with a main piston (201a-1), an upper magnetic ring (201a-2), a lower magnetic ring (201a-3), and a pressure rod (201a-4). The main piston (201a-1) is fitted and connected to the inner wall of the main piston cylinder (201a). A lower magnetic ring (201a-3) is provided on one side of the main piston (201a-1). The lower magnetic ring (201a-3) is open to the air. The support block (201a-3a) is connected to the inner wall of the main piston cylinder (201a). An upper magnetic ring (201a-2) is provided on one side of the lower magnetic ring (201a-3). The upper magnetic ring (201a-2) is connected to the lower magnetic ring (201a-3) through a pressure rod (201a-4), and the pressure rod (201a-4) passes through and connects the upper magnetic ring (201a-2) and the lower magnetic ring (201a-3). The upper magnetic ring (201a-2) and the lower magnetic ring (201a-3) are on the same magnetic poles on the side that are close to each other.

4. The current transformer tray with a stepped card slot design as described in claim 3, characterized in that: The secondary locking component (202) includes a fixed plate (202a), a pressure plate (202b), a top rod (202c), and a push rod (202d). The fixed plate (202a) is disposed on the side wall of the tray seat (101). One end of the pressure plate (202b) is disposed in the inner cavity of the fixed plate (202a) and connected to the inner cavity of the fixed plate (202a) through a rotating rod and a torsion spring. The other end extends out of the outside of the fixed plate (202a) and is connected to one end of the pressure rod (201a-4). One end of the push rod (202c) is located in the inner cavity of the fixed plate (202a), and the other end extends out of the outside of the fixed plate (202a). The end of the push rod (202c) located inside the fixed plate (202a) is connected to the pressure plate (202b), and the other end is connected to the push rod (202d).

5. The current transformer tray with a stepped card slot design as described in claim 4, characterized in that: The side wall of the push rod (202d) is connected to the base (202d-1) via a connecting rod and a spring, and one end of the push rod (202d) is provided with a first inclined surface (202d-2), which matches the second inclined surface (202c-1) at one end of the top rod (202c).

6. A current transformer tray with a stepped card slot design as described in claim 4 or 5, characterized in that: The side wall of the fixing plate (202a) is provided with a conduit support (202a-1), and the conduit support (202a-1) is connected to the connecting conduit (201b).

7. The current transformer tray with a stepped card slot design as described in claim 6, characterized in that: The inner cavity of the auxiliary piston cylinder (201c) is provided with an auxiliary piston (201c-1), and a push rod (201c-2) is provided on one side of the auxiliary piston (201c-1). Each end of the push rod (201c-2) is provided with a friction pad (201c-2a), and friction contact teeth (201c-2b) are fixed on the side of the friction pad (201c-2a). The inner wall of the main piston cylinder (201a) is fixed with a main stop block (201a-1a) to block the main piston (201a-1), and the auxiliary piston (201c-1) is fixed with auxiliary stop blocks (201c-1a) on both sides.

8. The current transformer tray with a stepped card slot design as described in claim 7, characterized in that: The buffer (102) includes insulating contact plates (102a) disposed on both sides below the tray base (101), and dampers (102b) are fixed between the insulating contact plates (102a) and the tray base (101), and buffer springs (102c) are sleeved on the surface of the dampers (102b). The side wall of the tray seat (101) is provided with a positioning post (101b).

9. A method for operating a current transformer tray with a stepped card table design, characterized in that: Including a current transformer tray with a stepped card slot design as described in any one of claims 1-8; and, Place the current transformer in the tray base (101); The primary locking element (201) and the secondary locking element (202) are pressed to position the current transformer; Monitoring work begins.

10. The method for operating a current transformer tray with a stepped card slot design as described in claim 9, characterized in that: When the arc-shaped slot on the side plate of the current transformer is engaged, the opening on the positioning post (101b) on the current transformer is also engaged.

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