Elastic crimping device for verification of current transformer

Abstract

The utility model discloses an elastic crimping device for verification of a current transformer, relates to the technical field of current transformers, and solves the problems that when a person places the current transformer between a bottom plate and a force application plate, the sight of the person cannot directly observe whether a contact element is aligned with a contact point on the current transformer, the person needs to adjust for many times, and the operation is inconvenient. The current transformer detection device comprises a bottom plate and further comprises a crimping assembly installed at the upper end of the bottom plate, and the crimping assembly is used for crimping the current transformer; according to the utility model, through the installation of the crimping structure, personnel can directly observe whether the contact piece is in butt joint with the contact point on the current transformer, thereby effectively improving the verification efficiency of the current transformer, and through the installation of the deceleration structure, the contact piece on the pressing plate can be effectively prevented from impacting the contact point on the current transformer under the driving of the spring, thereby improving the verification efficiency of the current transformer. And faults caused by the fact that the contacts impact the contact points of the current transformer are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to current transformer technical field, concretely is elastic pressure contact device for current transformer calibration. BACKGROUND

[0002] Current transformer is the instrument that converts primary side big current into secondary side small current to measure according to electromagnetic induction principle. In the calibration process of current transformer, need to utilize pressure contact device to make current transformer and contact point contact.

[0003] The prior art patent CN102590780B discloses elastic pressure contact device for current transformer calibration, when using, the rear part of the rotating arm is upturned (that is, the handle is pulled), the rotating arm is rotated an angle on the horizontal plane, the current transformer to be detected is placed on the bottom plate, and the corresponding part position on the current transformer is located on the lower contact piece on the bottom plate, then the rotating arm is rotated to the initial position, at this time, the lifting screw is rotated, the forcing plate is lowered, and the upper contact piece of the forcing plate is pressed on the current transformer (also can be directly pressed with the contact point of the current transformer through the three lower contact pieces on the bottom plate and the three upper contact pieces on the forcing plate). The height position of the lifting screw is controlled, and the size of the force applied to the current transformer can be adjusted.

[0004] The above device, in the use process, the contact pieces on the bottom plate and the forcing plate are distributed on the upper and lower sides of the current transformer, so that when the current transformer is placed between the bottom plate and the forcing plate, the line of sight of the personnel cannot directly observe whether the contact pieces are aligned with the contact points on the current transformer, and the detection efficiency of the current transformer is affected. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of elastic pressure contact device for current transformer calibration, which can conveniently observe the butt joint of contact piece and current transformer contact point, and solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: elastic pressure contact device for current transformer calibration, including bottom plate, further including the pressure contact component of installation in the bottom plate upper end, the pressure contact component is used to carry out pressure contact to current transformer, the pressure contact component includes two symmetrically distributed pressure plates, and the connection mode between the pressure plate and the bottom plate is sliding contact, and the side of two pressure plates mutually close is fixedly embedded with multiple contact pieces;Speed reduction component is used to slow down the pressure plate, and the speed reduction component is movably embedded in the lower end center of the pressure plate.

[0007] Preferably, the outer side of the two pressing plates is provided with two symmetrically distributed connecting plates, the lower end of the connecting plate is in movable contact with the bottom plate, and the side of the two connecting plates close to each other is fixedly provided with two symmetrically distributed hinge seats.

[0008] Preferably, the hinge seat and the two pressing plates are provided with connecting rods, and the connecting mode between the connecting rod and the pressing plate and the hinge seat is movable hinging, and the hinge seat can change the distance between the two pressing plates through the two connecting rods.

[0009] Preferably, the lower end of the pressing plate is fixedly provided with two symmetrically distributed limiting sliding blocks, the limiting sliding block can prevent the pressing plate from being separated from the bottom plate, and the limiting sliding block is in sliding contact with the bottom plate through a limiting straight groove.

[0010] Preferably, the ends of the two limiting sliding blocks away from each other are movably abutted with springs, the spring can drive the pressing plate to move, and the end of the spring away from the limiting sliding block is in movable abutment with the bottom plate.

[0011] Preferably, the speed reduction assembly comprises a cam, the outer side of the cam is fixedly sleeved with an anti-skid sleeve, the anti-skid sleeve can increase the friction between the cam and the bottom plate, and the connecting mode between the anti-skid sleeve and the bottom plate is movable contact.

[0012] Preferably, the inside of the cam is fixedly penetrated with a positioning shaft, the outer side of the positioning shaft is fixedly sleeved with two symmetrically distributed coil springs, and the coil spring can drive the cam to rotate.

[0013] Preferably, the outer side end of the coil spring is fixedly connected with the pressing plate, and a limiting rotation groove is formed on the pressing plate corresponding to the positions where the cam and the anti-skid sleeve are installed.

[0014] Preferably, the cam is rotationally connected with the pressing plate through the positioning shaft and the limiting rotation groove, and the limiting rotation groove can limit the rotation angle of the cam.

[0015] Preferably, the side of the two connecting plates close to each other is fixedly provided with a positioning plate, the positioning plate is close to the lower end of the connecting plate, the positioning plate can move together with the connecting plate, and the end of the positioning plate away from the connecting plate is in movable abutment with the current transformer.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The utility model discloses a pressing structure for current transformer, which comprises a bottom plate, two pressing plates movably arranged on the bottom plate, a speed reduction assembly arranged on the bottom plate and connected with the two pressing plates, and two connecting plates movably arranged on the bottom plate and connected with the two pressing plates.

[0018] 2. The utility model discloses a speed reduction structure is installed, and the cam in speed reduction structure can be contacted and rubbed with the bottom plate through the antiskid sleeve when two pressing plates are close to each other, and the moving speed of pressing plate is reduced, thereby effectively avoiding that the contact piece on the pressing plate is driven under the spring and hits the contact point on the current transformer, and avoiding that the contact piece hits the contact point on the current transformer and causes the failure of the current transformer.

[0019] 3. The utility model discloses two positioning plates are installed, be favorable to assisting current transformer to carry out positioning, need not to adjust the position of current transformer, and the contact point of current transformer is directly docked with the contact piece directly. DRAWINGS

[0020] Figure 1 It is overall schematic view of the utility model;

[0021] Figure 2 It is the overhead view of the utility model;

[0022] Figure 3 It is side sectional schematic view of the utility model;

[0023] Figure 4 It is overall schematic view of the utility model pressure welding structure;

[0024] Figure 5 It is bottom side schematic view of the utility model pressure welding structure;

[0025] Figure 6 It is overall schematic view of the utility model speed reduction subassembly.

[0026] In the drawing: 1, bottom plate;2, pressure welding subassembly;201, pressing plate;202, connecting rod;203, hinged seat;204, connecting plate;205, limit sliding block;206, spring;3, contact piece;4, speed reduction subassembly;401, cam;402, antiskid sleeve;403, positioning shaft;404, coil spring;405, limit rotary groove;5, positioning plate. DETAILED DESCRIPTION

[0027] 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, not 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 scope of the utility model.

[0028] Embodiment one

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3The utility model discloses a flexible compression device for current transformer calibration, including bottom plate 1, still include the compression assembly 2 of installing on the upper end of bottom plate 1, and the compression assembly 2 is used for the compression of current transformer, and the compression assembly 2 includes two symmetrical distribution's compression plate 201, and the connecting mode between compression plate 201 and bottom plate 1 is sliding contact, and the side of mutual approach of two compression plate 201 is fixedly embedded with a plurality of contact piece 3, the deceleration assembly 4 is used for the deceleration of compression plate 201, and the deceleration assembly 4 is movably embedded in the lower end center of compression plate 201.

[0030] Please refer to Figure 4 The outer side of two compression plate 201 is installed with two symmetrical distribution's connecting plate 204, and the lower end of connecting plate 204 is movably contacted with bottom plate 1, and the side of mutual approach of two connecting plate 204 is fixedly installed with two symmetrical distribution's hinged seat 203, and the hinged seat 203 is installed with connecting rod 202 between two compression plate 201, and the connecting mode between connecting rod 202 and compression plate 201 and hinged seat 203 is all movable hinged, and the hinged seat 203 can change the interval between two compression plate 201 through two connecting rod 202.

[0031] Please refer to Figure 2 、 Figure 5 The lower end of compression plate 201 is fixedly installed with two symmetrical distribution's limit sliding block 205, and limit sliding block 205 can avoid that compression plate 201 is separated from bottom plate 1, and limit sliding block 205 is slidably contacted with bottom plate 1 through limit straight slot, and the end of mutual departure of two limit sliding block 205 is movably contacted with spring 206, and spring 206 can drive compression plate 201 to move, and the end of spring 206, away from limit sliding block 205, is movably contacted with bottom plate 1.

[0032] Conveniently observe the working principle of the contact point butt joint of contact piece and current transformer: personnel place two compression plate 201 vertically, then extrude two connecting plate 204 using thumb and index finger, make two connecting plate 204 mutually approach, under the action of connecting rod 202, when two connecting plate 204 mutually approach, will drive two compression plate 201 mutually depart, at this moment, personnel place current transformer between two compression plate 201, because contact piece 3 is located at the side of mutual approach of two compression plate 201, so personnel can directly observe whether contact piece 3 is butt joint with the contact point on current transformer, need not repeatedly adjust the position of current transformer, to effectively improve current transformer calibration efficiency.

[0033] Example two

[0034] Please refer to Figure 6The embodiment further illustrates the first embodiment. The speed reduction assembly 4 comprises a cam 401. An anti-skid sleeve 402 is fixedly sleeved on the outer side of the cam 401. The anti-skid sleeve 402 can increase the friction between the cam 401 and the bottom plate 1. The anti-skid sleeve 402 and the bottom plate 1 are in movable contact. A positioning shaft 403 is fixedly penetrated in the inner side of the cam 401. Two symmetrical coil springs 404 are fixedly sleeved on the outer side of the positioning shaft 403. The coil springs 404 can drive the cam 401 to rotate.

[0035] Please refer to Figure 3 、 Figure 6 The outer side end of the coil spring 404 is fixedly connected with the pressing plate 201. A limiting rotation groove 405 is formed on the pressing plate 201 corresponding to the positions where the cam 401 and the anti-skid sleeve 402 are installed. The cam 401 is rotationally connected with the pressing plate 201 through the positioning shaft 403 and the limiting rotation groove 405. The limiting rotation groove 405 can limit the rotation angle of the cam 401.

[0036] In the embodiment, when the two connecting plates 204 are pressed by the personnel and the two pressing plates 201 move away from each other, the cam 401 contacts the bottom plate 1. The bottom plate 1 can drive the cam 401 to rotate in the limiting rotation groove 405 through the anti-skid sleeve 402. When the two connecting plates 204 are released by the personnel and the two pressing plates 201 move close to each other under the driving of the compressed elastic force of the spring 206, the cam 401 cannot rotate under the block of the limiting rotation groove 405. Thus, the cam 401 contacts and rubs with the bottom plate 1 through the anti-skid sleeve 402. The friction between the anti-skid sleeve 402 and the bottom plate 1 changes the moving speed of the two pressing plates 201. This can effectively avoid that the contact piece 3 on the pressing plate 201 hits the contact point on the current transformer under the driving of the spring 206. This can also avoid that the contact piece 3 hits the contact point on the current transformer to cause failure of the contact point.

[0037] Embodiment three

[0038] Please refer to Figure 2 The embodiment further illustrates other embodiments. The two connecting plates 204 are fixedly installed with positioning plates 5 on the side moving close to each other. The positioning plates 5 are close to the lower ends of the connecting plates 204. The positioning plates 5 can move with the connecting plates 204. The ends of the positioning plates 5 away from the connecting plates 204 movably abut against the current transformer.

[0039] In the embodiment, when the connecting plates 204 are pressed, the two positioning plates 5 move close to each other. When the distance between the two pressing plates 201 reaches the maximum value, the distance between the two positioning plates 5 is equal to the length of the current transformer. Thus, the positioning plates 5 can assist in positioning the current transformer. This facilitates that the contact piece 3 directly docks with the contact point on the current transformer.

[0040] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process or method.

[0041] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is thus defined by the appended claims and their equivalents.

Claims

1. Elastic pressure device for the verification of current transformers, comprising a base plate (1), characterized in that, Also include: The crimping assembly (2) is installed at the upper end of the bottom plate (1), and the crimping assembly (2) is used for crimping the current transformer. The crimping assembly (2) includes two symmetrically distributed pressing plates (201), and the connection between the pressing plate (201) and the bottom plate (1) is sliding contact. The side of the two pressing plates (201) close to each other is fixedly embedded with a plurality of contact pieces (3). The deceleration assembly (4) is used for decelerating the pressing plate (201), and the deceleration assembly (4) is movably embedded in the center of the lower end of the pressing plate (201).

2. The flexible crimping device for current transformer calibration according to claim 1, characterized in that: The outer side of the two pressing plates (201) is provided with two symmetrically distributed connecting plates (204), and the side of the two connecting plates (204) close to each other is fixedly provided with two symmetrically distributed hinge seats (203).

3. The flexible crimping device for current transformer testing according to claim 2, characterized in that: The hinge seat (203) and the two pressing plates (201) are provided with a connecting rod (202), and the connecting rod (202) and the pressing plate (201) and the hinge seat (203) are movably connected.

4. The flexible crimping device for current transformer testing according to claim 3, characterized in that: The lower end of the pressing plate (201) is fixedly provided with two symmetrically distributed limiting sliding blocks (205), and the limiting sliding block (205) is in sliding contact with the bottom plate (1) through a limiting straight slot.

5. The flexible crimping device for current transformer testing according to claim 4, characterized in that: The end of the two limiting sliding blocks (205) away from each other is movably abutted with a spring (206), and the end of the spring (206) away from the limiting sliding block (205) is movably abutted with the bottom plate (1).

6. The flexible crimping device for current transformer testing of claim 1, wherein: The deceleration assembly (4) includes a cam (401), and the outer side of the cam (401) is fixedly sleeved with an anti-skid sleeve (402), and the anti-skid sleeve (402) and the bottom plate (1) are movably connected.

7. The flexible crimping device for current transformer testing according to claim 6, characterized in that: The inside of the cam (401) is fixedly penetrated with a positioning shaft (403), and the outer side of the positioning shaft (403) is fixedly sleeved with two symmetrically distributed coil springs (404).

8. The flexible crimping device for current transformer testing according to claim 7, characterized in that: The outer side end of the coil spring (404) is fixedly connected with the pressing plate (201), and the pressing plate (201) is provided with a limiting rotation groove (405) corresponding to the installation of the cam (401) and the anti-skid sleeve (402).

9. The flexible crimping device for current transformer testing of claim 8, wherein: The cam (401) is rotatably connected with the pressing plate (201) through the positioning shaft (403) and the limiting rotation groove (405).

10. The flexible crimping device for current transformer testing of claim 2, wherein: The side of the two connecting plates (204) close to each other is fixedly provided with a positioning plate (5), and the lower end of the positioning plate (5) close to the connecting plate (204), and the end of the positioning plate (5) away from the connecting plate (204) is movably abutbed with the current transformer.

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