Electromagnetic high-low voltage compensation current transformer

Abstract

The utility model discloses an electromagnetic high and low voltage compensation current transformer, which belongs to the technical field of current transformers and comprises a sleeve, a bottom block is connected below the sleeve, and an adsorption component is arranged in the bottom block. According to the utility model, the sealing assembly is arranged, when the rainproof cap is screwed into the threaded connection seat, the external connection cylinder is inserted into the annular cavity, the annular sealing plate moves under the extrusion action of the external connection cylinder, the annular sealing plate moves to drive the moving rod to move in the connection sleeve, and the moving rod moves to extrude the connection spring; the annular sealing plate moves to drive the sealing ring to move and be attached to the end of the external connection cylinder, under the action of the external connection cylinder, the annular sealing plate and the sealing ring, moisture in the external environment can be prevented from entering the threaded connection position of the rainproof cap and the threaded connection base, the threaded connection position of the rainproof cap and the threaded connection base is prevented from being rusted, and the service life of the rainproof cap is prolonged. And the connection stability of the rainproof cap and the threaded connection seat is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of current transformers, and in particular relates to an electromagnetic high-low voltage compensation current transformer. Background Art

[0002] The principle of current transformer is based on the principle of electromagnetic induction. The current transformer is composed of a closed iron core and a winding.

[0003] Chinese patent application No. 202220316374.4 discloses an electromagnetic high and low voltage compensating current transformer, including a shell, a sleeve is installed at the lower end of the shell, a connecting seat is connected to the upper end of the shell, a top cover is installed at the upper end of the connecting seat, a connecting ring is connected to the lower end of the top cover, and a knob is provided on the outer surface of the side end of the connecting seat. By arranging the connecting seat, the top cover, the connecting ring, the knob, the connecting rod, the first threaded ring, the spring, the pin, the movable groove, the through hole and the threaded groove, the top cover can be easily disassembled and assembled without the aid of tools. By arranging the fixing ring, the threaded fixing seat, the rain cap and the second threaded ring, it is helpful to prevent rainwater from entering the shell from the connection between the shell and the sleeve, thereby preventing the electronic components inside the shell from being damaged during operation on rainy days.

[0004] In the above patent, the second threaded ring on the rain cap is connected to the threaded fixing seat to achieve the connection operation between the rain cap and the shell. However, during subsequent use, moisture in the external environment enters the threaded connection between the second threaded ring and the threaded fixing seat, causing rust at the threaded connection, affecting the stability of the connection between the second threaded ring and the threaded fixing seat, and further affecting the stability of the connection between the rain cap and the shell; in addition, the sleeve is directly placed at the place of use. During subsequent use, the sleeve is subjected to force and shakes or even topples over, causing damage to the electronic components inside the sleeve. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an electromagnetic high-low voltage compensation current transformer, which has the characteristics of sealing and adsorption fixation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electromagnetic high and low voltage compensating current transformer, comprising a bushing, a bottom block is connected to the bottom of the bushing, an adsorption component is arranged inside the bottom block, a top shell mechanism is arranged above the bushing, a threaded connection seat is connected to one end of the top shell mechanism close to the bushing, a rain cap is connected to the inside of the threaded connection seat and located on the periphery of the bushing, and a sealing component is arranged between the threaded connection seat and the rain cap.

[0007] Preferably, the sealing assembly includes an external connecting tube, an annular cavity, an annular sealing plate, a movable part and a sealing ring. The external connecting tube is connected to the outer wall of the rain cap, an annular cavity is arranged inside the threaded connection seat and at a position corresponding to the external connecting tube, an annular sealing plate is arranged inside the annular cavity, a movable part is arranged between the annular sealing plate and the annular cavity, and a sealing ring is connected to the side of the annular sealing plate close to the external connecting tube.

[0008] Preferably, the moving part includes a connecting sleeve, a connecting spring and a moving rod, the moving rods are connected to both ends of the annular sealing plate on the side away from the sealing ring, a connecting spring is connected between the moving rod and the annular cavity, and a connecting sleeve is connected on the inner wall of the annular cavity and located on the periphery of the connecting spring and the moving rod.

[0009] Preferably, both sides of one end of the moving rod close to the connecting sleeve are connected to limiting sliders, and limiting sliding grooves are provided on the inner side wall of the connecting sleeve at positions corresponding to the limiting sliders.

[0010] Preferably, the adsorption assembly includes a vacuum suction cup, a mounting groove and a connecting pipe, the mounting grooves are provided on both sides of the interior of the bottom block, the interior of the mounting groove is connected to the vacuum suction cup, and the top of the vacuum suction cup is connected to the connecting pipe.

[0011] Preferably, an end of the connecting tube away from the vacuum suction cup is connected to an end cover, and a rotating rod is connected to the side wall of the end cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a sealing assembly. When the rain cap is rotated and screwed into the interior of the threaded connection seat, the external connection tube is inserted into the annular cavity, and the annular sealing plate moves due to the squeezing effect of the external connection tube. The movement of the annular sealing plate drives the moving rod to move inside the connecting sleeve. The movement of the moving rod squeezes the connecting spring. The movement of the annular sealing plate drives the sealing ring to move and fit the end of the external connection tube. Under the action of the external connection tube, the annular sealing plate and the sealing ring, moisture in the external environment can be prevented from entering the threaded connection between the rain cap and the threaded connection seat, and rust can be prevented from occurring at the threaded connection between the rain cap and the threaded connection seat, thereby ensuring the stability of the connection between the rain cap and the threaded connection seat.

[0014] 2. The utility model is provided with an adsorption component. After the bottom block is placed at the place where the device is used, the end cover is rotated to open, and then the external vacuum pump is connected to the connecting pipe. The connecting pipe is used in conjunction with the external vacuum pump to exhaust the air inside the vacuum suction cup, so that the vacuum suction cup is adsorbed on the surface of the use place, and then the external vacuum pump is removed, and the end cover is rotated and screwed to the end of the connecting pipe. Under the action of the vacuum suction cup, the stability of the placement of the bottom block can be guaranteed, and then the stability of the placement of the entire device can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 It is a cross-sectional view of the connection state between the threaded connection seat and the external connection tube of the utility model;

[0019] Figure 5 For this utility model Figure 4 The enlarged view of point B in the middle;

[0020] Figure 6 It is a cross-sectional view of the bottom block of the utility model.

[0021] In the figure: 1. top shell mechanism; 2. threaded connection seat; 3. rain cap; 4. bottom block; 5. sleeve; 6. sealing assembly; 61. external tube; 62. annular cavity; 63. annular sealing plate; 64. moving part; 641. connecting sleeve; 642. connecting spring; 643. moving rod; 65. sealing ring; 7. adsorption assembly; 71. vacuum suction cup; 72. mounting groove; 73. end cover; 74. connecting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figure 1-6 The utility model provides the following technical solutions: an electromagnetic high and low voltage compensating current transformer, comprising a bushing 5, a bottom block 4 is connected to the bottom of the bushing 5, an adsorption component 7 is arranged inside the bottom block 4, a top shell mechanism 1 is arranged above the bushing 5, a threaded connection seat 2 is connected to one end of the top shell mechanism 1 close to the bushing 5, a rain cap 3 is connected to the inside of the threaded connection seat 2 and located at the periphery of the bushing 5, and a sealing component 6 is arranged between the threaded connection seat 2 and the rain cap 3.

[0025] Specifically, the sealing assembly 6 includes an external connection tube 61, an annular cavity 62, an annular sealing plate 63, a moving part 64 and a sealing ring 65. The outer wall of the rain cap 3 is connected to the external connection tube 61, and an annular cavity 62 is provided inside the threaded connection seat 2 and at a position corresponding to the external connection tube 61. An annular sealing plate 63 is provided inside the annular cavity 62, and a moving part 64 is provided between the annular sealing plate 63 and the annular cavity 62. A sealing ring 65 is connected to the side of the annular sealing plate 63 close to the external connection tube 61.

[0026] By adopting the above technical solution, after the rain cap 3 is rotated and screwed into the threaded connection seat 2, the external tube 61 is then inserted into the annular cavity 62, and the annular sealing plate 63 is squeezed by the external tube 61 and displaced under the action of the moving part 64, and the sealing ring 65 on the annular sealing plate 63 is then fitted to the end of the external tube 61. Under the action of the external tube 61, the annular sealing plate 63 and the sealing ring 65, moisture in the external environment can be prevented from entering the threaded connection between the rain cap 3 and the threaded connection seat 2, and rust can be prevented from occurring at the threaded connection between the rain cap 3 and the threaded connection seat 2, thereby ensuring the stability of the connection between the rain cap 3 and the threaded connection seat 2.

[0027] Specifically, the moving member 64 includes a connecting sleeve 641, a connecting spring 642 and a moving rod 643. The two ends of the annular sealing plate 63 away from the sealing ring 65 are connected to the moving rod 643. The connecting spring 642 is connected between the moving rod 643 and the annular cavity 62. The connecting sleeve 641 is connected to the inner wall of the annular cavity 62 and is located at the periphery of the connecting spring 642 and the moving rod 643.

[0028] By adopting the above technical solution, the annular sealing plate 63 moves due to the squeezing action of the external tube 61. The movement of the annular sealing plate 63 drives the moving rod 643 to move inside the connecting sleeve 641. The moving rod 643 moves to squeeze the connecting spring 642, thereby facilitating the movement operation of the annular sealing plate 63.

[0029] Specifically, both sides of one end of the moving rod 643 close to the connecting sleeve 641 are connected to limit sliders, and a limit sliding groove is provided on the inner side wall of the connecting sleeve 641 at a position corresponding to the limit slider.

[0030] By adopting the above technical solution, the movement of the moving rod 643 drives the limiting slider to move inside the limiting slide groove. When the limiting slider moves to fit the side wall of the moving slide groove, the limiting slider is blocked and stops moving, thereby preventing the moving rod 643 from continuing to move and preventing the moving rod 643 from detaching from the connecting sleeve 641.

[0031] When the present embodiment is used, the electronic components of the electromagnetic high and low voltage compensating current transformer are installed inside the sleeve 5, and then the rain cap 3 is rotated and screwed into the inside of the threaded connection seat 2, and the external connection tube 61 is inserted into the annular cavity 62. The annular sealing plate 63 moves due to the extrusion of the external connection tube 61, and the movement of the annular sealing plate 63 drives the moving rod 643 to move inside the connection sleeve 641, and the moving rod 643 moves to squeeze the connection spring 642, and the movement of the annular sealing plate 63 drives the sealing ring 65 to move and fit the end of the external connection tube 61. Under the action of the external connection tube 61, the annular sealing plate 63 and the sealing ring 65, moisture in the external environment can be prevented from entering the threaded connection between the rain cap 3 and the threaded connection seat 2, and rust can be prevented from occurring at the threaded connection between the rain cap 3 and the threaded connection seat 2, thereby ensuring the stability of the connection between the rain cap 3 and the threaded connection seat 2, and then the top shell mechanism 1 is installed to the end of the sleeve 5, and then the bottom block 4 is placed at the place where the device is used, so that the whole device can be used easily.

[0032] Example 2

[0033] The present embodiment is different from the first embodiment in that the adsorption assembly 7 includes a vacuum suction cup 71, a mounting groove 72 and a connecting pipe 74. The mounting grooves 72 are provided on both sides of the bottom block 4. The inside of the mounting grooves 72 is connected to the vacuum suction cup 71. The upper part of the vacuum suction cup 71 is connected to the connecting pipe 74.

[0034] Specifically, one end of the connecting tube 74 away from the vacuum suction cup 71 is connected to an end cover 73, and a rotating rod is connected to the side wall of the end cover 73.

[0035] By adopting the above technical solution, after using the connecting tube 74 in conjunction with an external vacuum pump to exhaust the air inside the vacuum suction cup 71, the end cover 73 is rotated and screwed to the end of the connecting tube 74. Under the action of the end cover 73, the connecting tube 74 can be sealed, thereby ensuring the adsorption effect of the vacuum suction cup 71.

[0036] When this embodiment is used, after the bottom block 4 is placed at the place where the device is used, the end cover 73 is rotated to open, and then the external vacuum pump is connected to the connecting pipe 74. The connecting pipe 74 cooperates with the external vacuum pump to discharge the air inside the vacuum suction cup 71, so that the vacuum suction cup 71 is adsorbed on the surface of the place of use, and then the external vacuum pump is removed, and the end cover 73 is rotated and screwed to the end of the connecting pipe 74. Under the action of the vacuum suction cup 71, the stability of the placement of the bottom block 4 can be guaranteed, and then the stability of the placement of the entire device can be guaranteed.

[0037] The structure and principle of the top shell mechanism 1 composed of a shell, a connecting seat, a top cover, a connecting ring, a knob, a connecting rod, a latch, a first threaded ring, a spring, a movable groove, a through hole, a threaded groove, and a fixed ring in the utility model have been disclosed in an electromagnetic high and low voltage compensation current transformer disclosed in Chinese patent application No. 202220316374.4, and its working principle is: a fixing ring is connected above the threaded connecting seat 2, a shell is connected above the fixing ring, a connecting seat is connected to the upper end of the shell, a top cover is installed at the upper end of the connecting seat, a connecting ring is connected to the lower end of the top cover, a knob is provided on the outer surface of the side end of the connecting seat, a connecting rod is provided on the outer surface of one side of the knob, one end of the connecting rod is located inside the connecting seat and is connected with a latch, a first threaded ring is provided on the outer surface of the side end of the connecting rod, a spring is installed on the outer side of the connecting rod and the first threaded ring, and the connecting rod is provided with a latch on the outer surface of the first threaded ring. A movable groove is provided at the connection between the rod, the pin and the spring and the connecting seat, a through hole is provided at the connection between the pin and the connecting ring, and a threaded groove is provided at the connection between the first threaded ring and the connecting seat. When in use, under the condition that the connecting rod, the first threaded ring and the spring are movably connected to the connecting seat through the movable groove, and the connecting rod is threadedly connected to the connecting seat through the threaded groove, the pin is pulled into the movable groove in the connecting seat through the knob, and then the connecting rod is rotated through the knob to screw the first threaded ring on the connecting rod into the threaded groove in the connecting seat, which is conducive to limiting the pin. Under the condition that the connection mode between the top cover and the connecting seat is a movable connection, the connecting ring at the lower end of the top cover is inserted into the connecting seat, and then the first threaded ring is screwed out of the threaded groove through the knob. At this time, the pin is driven by the spring to be stuck in the through hole on the connecting ring, and the top cover is limited and fixed, which is convenient for the disassembly and assembly of the top cover.

[0038] The working principle and use process of the utility model: the utility model installs the electronic components of the electromagnetic high and low voltage compensation current transformer into the sleeve 5, and then rotates and screws the rain cap 3 into the inside of the threaded connection seat 2, and the external connection tube 61 is then inserted into the annular cavity 62. The annular sealing plate 63 moves due to the squeezing effect of the external connection tube 61, and the movement of the annular sealing plate 63 drives the moving rod 643 to move inside the connection sleeve 641. The moving rod 643 moves to squeeze the connecting spring 642, and the movement of the annular sealing plate 63 drives the sealing ring 65 to move and fit the end of the external connection tube 61. Under the action of the external connection tube 61, the annular sealing plate 63 and the sealing ring 65, moisture in the external environment can be prevented from entering the rain cap 3 and the threaded connection seat. 2, prevent the threaded connection between the rain cap 3 and the threaded connection seat 2 from rusting, ensure the stability of the connection between the rain cap 3 and the threaded connection seat 2, then install the top shell mechanism 1 to the end of the sleeve 5, and then place the bottom block 4 to the place where the device is used, rotate to open the end cover 73, and then connect the external vacuum pump to the connecting pipe 74, use the connecting pipe 74 to cooperate with the external vacuum pump to exhaust the air inside the vacuum suction cup 71, so that the vacuum suction cup 71 is adsorbed on the surface of the place of use, then remove the external vacuum pump, and rotate the end cover 73 to the end of the connecting pipe 74. Under the action of the vacuum suction cup 71, the stability of the placement of the bottom block 4 can be guaranteed, and then the stability of the placement of the entire device can be guaranteed, which is convenient for the use of the entire device.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic high and low voltage compensating current transformer, comprising a bushing, characterized in that: A bottom block is connected to the bottom of the sleeve, an adsorption assembly is arranged inside the bottom block, a top shell mechanism is arranged above the sleeve, an end of the top shell mechanism close to the sleeve is connected to a threaded connection seat, a rain cap is connected inside the threaded connection seat and located at the periphery of the sleeve, and a sealing assembly is arranged between the threaded connection seat and the rain cap.

2. The electromagnetic high and low voltage compensation current transformer according to claim 1, characterized in that: The sealing assembly includes an external connecting tube, an annular cavity, an annular sealing plate, a movable part and a sealing ring. The external connecting tube is connected to the outer wall of the rain cap, an annular cavity is arranged inside the threaded connection seat and at a position corresponding to the external connecting tube, an annular sealing plate is arranged inside the annular cavity, a movable part is arranged between the annular sealing plate and the annular cavity, and a sealing ring is connected to the side of the annular sealing plate close to the external connecting tube.

3. The electromagnetic high and low voltage compensating current transformer according to claim 2, characterized in that: The moving part includes a connecting sleeve, a connecting spring and a moving rod. The two ends of the annular sealing plate away from the sealing ring are connected to the moving rod. A connecting spring is connected between the moving rod and the annular cavity. A connecting sleeve is connected on the inner wall of the annular cavity and located on the periphery of the connecting spring and the moving rod.

4. The electromagnetic high and low voltage compensating current transformer according to claim 3 is characterized in that: Both sides of one end of the moving rod close to the connecting sleeve are connected to limiting sliding blocks, and limiting sliding grooves are arranged on the inner side wall of the connecting sleeve at positions corresponding to the limiting sliding blocks.

5. The electromagnetic high and low voltage compensating current transformer according to claim 1, characterized in that: The adsorption assembly includes a vacuum suction cup, a mounting groove and a connecting pipe. The mounting grooves are arranged on both sides of the bottom block. The inside of the mounting groove is connected to the vacuum suction cup, and the top of the vacuum suction cup is connected to the connecting pipe.

6. The electromagnetic high and low voltage compensating current transformer according to claim 5, characterized in that: An end of the connecting pipe away from the vacuum suction cup is connected with an end cover, and a rotating rod is connected to the side wall of the end cover.

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