Current transformer with stable installation structure

Abstract

The utility model belongs to the technical field of current transformers, particularly relates to a current transformer with a stable installation structure, and aims to solve the problem that an existing current transformer is unstable in installation and wastes, the current transformer with the stable installation structure comprises an abutting shell, a current transformer body penetrates out of the inner portion of the abutting shell, and a limiting mechanism is arranged above the abutting shell; after the current transformer body penetrates through the abutting shell, the rotating rod is shifted to rotate along the placement groove through supporting of the supporting rod, so that the penetrating rod enters the limiting groove and slides to abut against the current transformer body, the current transformer body can be supported on the two sides, and the stability after installation is improved; a piston mechanism is formed by the sealing gasket bonded to one end of the penetrating-out rod and the rotating rod, the piston mechanism is matched with the telescopic spring to adjust the length in the telescopic process, and meanwhile when the piston mechanism abuts against the current transformer body and encounters external force or shaking, a certain damping effect is achieved.

Description

Technical Field

[0001] The utility model relates to a current transformer mounting frame, in particular to a current transformer with a stable mounting structure, belonging to the technical field of current transformers. Background Art

[0002] The current in power generation, transformation, transmission, distribution and power consumption lines varies greatly, ranging from a few amperes to tens of thousands of amperes. In order to facilitate measurement, protection and control, it needs to be converted into a relatively uniform current. In addition, the voltage on the line is generally high. If it is measured directly, it is very dangerous. The current transformer plays the role of current conversion and electrical isolation. The current transformer is an instrument that converts the large current on the primary side into a small current on the secondary side for measurement based on the principle of electromagnetic induction. The current transformer is composed of a closed iron core and a winding.

[0003] In the prior art, such as the current transformer mounting plate disclosed in the announcement number CN218069553U, the left hand presses the pressing block to drive the cross bar to move, so that the cross bar drives the extrusion rod to move and squeeze the inner wall of the wedge-shaped groove, and then the clamping rod moves and disengages from the inner cavity of the clamping hole, and then the right hand drags the current transformer body to remove the plug-in board from the inner cavity of the slot, so as to achieve the purpose of removing the plug-in board from the rectangular plate, and then conveniently removing the current transformer body from the distribution cabinet, which solves the problem that the current transformer is installed in the distribution cabinet for use, and when it fails, it needs to be repaired or replaced by power personnel.

[0004] However, in the implementation of relevant technologies, it was found that the current transformer mounting plate of the above-mentioned design has the following problems: although the existing technology can facilitate the disassembly and assembly of the current transformer through the cooperation of components such as the clamp rod, during actual use, the mounting plate only supports the installation of the current transformer from the bottom, and does not support it from both sides, resulting in a lack of stability in the installation process. In view of this, a current transformer with a stable mounting structure is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model provides a current transformer with a stable mounting structure to solve the problem that, during the specific use process, the mounting plate only supports the current transformer from below but does not support it from both sides, resulting in a lack of stability in the installation process.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a current transformer with a stable installation structure, comprising a resistance shell, a current transformer body is passed through the resistance shell, and a limit mechanism is arranged above the resistance shell;

[0007] The limiting mechanism includes a placement groove, which is arranged on both sides of the current transformer body at the top of the abutment shell, and a support rod is fixed inside the placement groove, and the outer wall of the support rod is rotatably connected to a rotating rod, a penetration rod is passed through the inside of the rotating rod, and a sealing gasket is connected to one end of the penetration rod that penetrates into the rotating rod, a telescopic spring is passed through the inside of the sealing gasket, and limiting grooves are arranged on both sides of the outer wall of the current transformer body corresponding to the position of the penetration rod.

[0008] As a further solution of the utility model: a sliding structure is formed between the penetration rod and the rotating rod, and a rotating structure is formed between the rotating rod and the abutment shell through the supporting rod.

[0009] As a further solution of the utility model: a fixing mechanism is arranged on one side of the current transformer body inside the resistance shell, and the fixing mechanism includes a connecting rod, the connecting rod penetrates into the other side of the mounting groove at the top end of the resistance shell, and the connecting rod passes through the outer wall of the resistance shell and is sleeved with a resistance spring, the bottom end of the connecting rod is connected to a threaded rod, and the outer wall of the threaded rod is connected to a bottom plate.

[0010] As a further solution of the utility model: the connecting rod is fixedly connected to the bottom plate through a threaded rod, and a sliding structure is formed between the connecting rod and the resisting spring.

[0011] As a further solution of the utility model: a through slot is provided at the top of the abutment shell corresponding to the position of the current transformer body, and an abutment mechanism is provided inside the through slot.

[0012] As a further solution of the utility model: the resistance mechanism includes a damping spring, which is embedded in one side of the inner part of the through groove, and one end of the damping spring is connected to a resistance plate, sliders are fixed on both sides of the outer wall of the resistance plate, and a clamping block is fixed on one end of the outer wall of the resistance plate facing the current transformer body.

[0013] As a further solution of the utility model: the resistance plate forms an elastic structure with the resistance shell through the damping spring, and the resistance plate forms a sliding structure with the through-slot through the sliding block.

[0014] The beneficial effect of the utility model is that after the current transformer body passes through the abutment shell, the rotating rod is toggled and rotated along the mounting groove with the support of the support rod, so that the penetration rod enters the limit groove and slides to abut, thereby supporting the current transformer body on both sides and improving the stability after installation. The sealing pad bonded to one end of the penetration rod forms a piston mechanism with the rotating rod, and cooperates with the telescopic spring to adjust the length during the telescopic process. At the same time, when abutting against the current transformer body, if external force or shaking is encountered, a certain shock-absorbing effect is achieved.

[0015] The beneficial effect of the utility model is that when the current transformer body passes through the resistance shell, the resistance shell and the current transformer body are fitted with the bottom plate, and the connecting rod passes through the resistance shell and the current transformer body at the same time, and is threadedly connected to the bottom plate through the threaded rod, so that the current transformer body is stably installed from the bottom, and the resistance spring is extended and retracted along the connecting rod, so that the current transformer body is elastically pressed to be located on the bottom plate, which has a certain shock-absorbing effect, and at the same time, the bending and deviation of the resistance spring during the contraction process is avoided through the connecting rod.

[0016] The beneficial effects of the utility model are as follows: the through groove allows the current transformer body to pass through the resistance shell, and limits the plate-like body at the bottom end of the current transformer body. After installation is completed, the resistance plate slides along the through groove under the elastic push of the damping spring, and the clamping block penetrates into the corresponding position of the current transformer body to limit and engage to improve the stability of the installation. When the resistance plate slides, it slides along the reserved groove of the through groove through the slider, thereby improving the stability of the sliding process and avoiding deviation. When disassembling, the resistance plate is moved to compress the damping spring, so that the current transformer body can be disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the current transformer of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the rotating rod of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the resistance spring of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the damping spring of the utility model.

[0022] In the figure: 1. Resistance shell; 2. Current transformer body; 3. Limiting mechanism; 301. Receiving groove; 302. Support rod; 303. Rotating rod; 304. Penetrating rod; 305. Limiting groove; 306. Sealing pad; 307. Telescopic spring; 4. Fixing mechanism; 401. Connecting rod; 402. Resistance spring; 403. Threaded rod; 404. Bottom plate; 5. Through groove; 6. Resistance mechanism; 601. Damping spring; 602. Resistance plate; 603. Sliding block; 604. Block. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1

[0025] like Figures 1 to 5 As shown, a current transformer with a stable installation structure includes a contact shell 1, a current transformer body 2 is passed through the contact shell 1, and a limiting mechanism 3 is arranged above the contact shell 1; the limiting mechanism 3 includes a placement groove 301, the placement groove 301 is arranged on both sides of the current transformer body 2 at the top of the contact shell 1, a support rod 302 is fixed inside the placement groove 301, a rotating rod 303 is rotatably connected to the outer wall of the support rod 302, a penetration rod 304 is passed through the inside of the rotating rod 303, a sealing gasket 306 is connected to one end of the penetration rod 304 that penetrates the rotating rod 303, a telescopic spring 307 is passed through the inside of the sealing gasket 306, and a limiting groove 305 is arranged at the position of the penetration rod 304 on both sides of the outer wall of the current transformer body 2. A sliding structure is formed between the penetration rod 304 and the rotating rod 303, and a rotating structure is formed between the rotating rod 303 and the abutment shell 1 through the support rod 302; when the current transformer body 2 passes through the abutment shell 1, the rotating rod 303 is moved, and is supported by the support rod 302 to rotate along the placement groove 301, so that the penetration rod 304 enters the limit groove 305 and slides to abut, so that the current transformer body 2 can be supported on both sides, and the stability after installation is improved. The sealing gasket 306 bonded to one end of the penetration rod 304 and the rotating rod 303 form a piston mechanism, which cooperates with the telescopic spring 307 to adjust the length during the telescopic process. At the same time, when it abuts against the current transformer body 2, if it encounters external force or shaking, it has a certain shock-absorbing effect.

[0026] Embodiment 2

[0027] In addition to all the technical features of the first embodiment, the present embodiment further includes: a fixing mechanism 4 is provided on one side of the current transformer body 2 inside the contact shell 1, the fixing mechanism 4 includes a connecting rod 401, the connecting rod 401 penetrates into the other side of the placement groove 301 at the top of the contact shell 1, the connecting rod 401 penetrates out of the outer wall of the contact shell 1 and is provided with a contact spring 402, the bottom end of the connecting rod 401 is connected to a threaded rod 403, the outer wall of the threaded rod 403 is connected to a bottom plate 404, the connecting rod 401 is fixedly connected to the bottom plate 404 through the threaded rod 403, and the connecting rod 401 and the contact spring 402 are connected. A sliding structure is formed; when the current transformer body 2 passes through the abutment shell 1, and the abutment shell 1 and the current transformer body 2 fit with the bottom plate 404, the connecting rod 401 passes through the abutment shell 1 and the current transformer body 2 at the same time, and is threadedly connected to the bottom plate 404 through the threaded rod 403, so that the current transformer body 2 is stably installed from the bottom, and the abutment spring 402 is extended and retracted along the connecting rod 401, so that the current transformer body 2 is elastically pressed against the bottom plate 404, which has a certain shock-absorbing effect, and at the same time, the connecting rod 401 is used to prevent the bending and deviation of the abutment spring 402 during its contraction process.

[0028] Embodiment 3

[0029] In addition to all the technical features of the first embodiment, the present embodiment also includes: a through slot 5 is provided at the top of the resistance shell 1 corresponding to the position of the current transformer body 2, a resistance mechanism 6 is provided inside the through slot 5, and the resistance mechanism 6 includes a damping spring 601, the damping spring 601 is embedded in one side of the inner part of the through slot 5, one end of the damping spring 601 is connected to a resistance plate 602, sliders 603 are fixed on both sides of the outer wall of the resistance plate 602, a clamping block 604 is fixed on one end of the outer wall of the resistance plate 602 facing the current transformer body 2, the resistance plate 602 forms an elastic structure with the resistance shell 1 through the damping spring 601, and the resistance plate 602 is connected to the resistance plate 602 through the sliding A sliding structure is formed between the block 603 and the through-slot 5; the through-slot 5 allows the current transformer body 2 to penetrate the abutment shell 1 and limits the plate-like body at the bottom end of the current transformer body 2. After the installation is completed, the abutment plate 602 slides along the through-slot 5 under the elastic push of the damping spring 601, and the clamping block 604 penetrates into the corresponding position of the current transformer body 2 to limit and engage to improve the stability of the installation. When the abutment plate 602 slides, it slides along the reserved groove of the through-slot 5 through the slider 603, thereby improving the stability of the sliding process and avoiding deviation. When disassembling, the abutment plate 602 is moved to compress the damping spring 601, and the current transformer body 2 can be disassembled.

[0030] Working principle: After the current transformer body 2 passes through the through slot 5 and penetrates the abutment shell 1, the connecting rod 401 is inserted and threadedly connected with the threaded rod 403 and the bottom plate 404, and the abutment spring 402 presses the current transformer body 2 to fix it. At the same time, the rotating rod 303 is rotated through the placement slot 301 and the support rod 302, and the penetration rod 304 is allowed to slide through the inclined limit slot 305, and the two sides of the current transformer body 2 are abutted to stabilize the installation. The sealing pad 306 is used to improve the internal pressure of the support rod 302. The sealing forms a piston space, and cooperates with the elastic contraction of the telescopic spring 307 to have a certain shock absorption during the support process. Pulling the contact plate 602 to compress the damping spring 601 facilitates the current transformer body 2 to pass through the through-slot 5. When installing, the damping spring 601 elastically pushes the contact plate 602 to allow the clamping block 604 to engage with the corresponding position of the current transformer body 2, which further stabilizes the installation. At the same time, it cooperates with the slider 603 to slide along the reserved groove inside the through-slot 5 to avoid shaking or deviation during the sliding process.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A current transformer with a stable mounting structure, comprising a contact housing (1), characterized in that: A current transformer body (2) is inserted into the interior of the abutment shell (1), and a limiting mechanism (3) is arranged above the abutment shell (1); The limiting mechanism (3) comprises a placement groove (301), the placement groove (301) being arranged on both sides of the current transformer body (2) at the top of the abutment shell (1), and a support rod (302) being fixed inside the placement groove (301), and a rotating rod (303) being rotatably connected to the outer wall of the support rod (302), a penetration rod (304) passing through the inside of the rotating rod (303), and a sealing gasket (306) being connected to one end of the penetration rod (304) passing through the rotating rod (303), and a telescopic spring (307) passing through the inside of the sealing gasket (306), and limiting grooves (305) being arranged on both sides of the outer wall of the current transformer body (2) at positions corresponding to the penetration rod (304).

2. A current transformer with a stable installation structure according to claim 1, characterized in that: The penetration rod (304) and the rotating rod (303) form a sliding structure, and the rotating rod (303) forms a rotating structure with the abutting shell (1) through the supporting rod (302).

3. A current transformer with a stable installation structure according to claim 1, characterized in that: A fixing mechanism (4) is provided on one side of the current transformer body (2) inside the resistance shell (1), and the fixing mechanism (4) comprises a connecting rod (401), the connecting rod (401) penetrates into the other side of the placement groove (301) at the top end of the resistance shell (1), and the connecting rod (401) penetrates out of the outer wall of the resistance shell (1) and is sleeved with a resistance spring (402), the bottom end of the connecting rod (401) is connected to a threaded rod (403), and the outer wall of the threaded rod (403) is connected to a bottom plate (404).

4. A current transformer with a stable installation structure according to claim 3, characterized in that: The connecting rod (401) is fixedly connected to the bottom plate (404) via a threaded rod (403), and a sliding structure is formed between the connecting rod (401) and the resisting spring (402).

5. The current transformer with a stable installation structure according to claim 1, characterized in that: A through slot (5) is provided at a position on the top of the abutment shell (1) corresponding to the current transformer body (2), and an abutment mechanism (6) is provided inside the through slot (5).

6. A current transformer with a stable installation structure according to claim 5, characterized in that: The resistance mechanism (6) comprises a damping spring (601), the damping spring (601) being embedded in one side of the inner portion of the through slot (5), and one end of the damping spring (601) being connected to a resistance plate (602), sliding blocks (603) being fixed on both sides of the outer wall of the resistance plate (602), and a clamping block (604) being fixed on one end of the outer wall of the resistance plate (602) facing the current transformer body (2).

7. A current transformer with a stable installation structure according to claim 6, characterized in that: The contact plate (602) forms an elastic structure with the contact shell (1) through the damping spring (601), and the contact plate (602) forms a sliding structure with the through slot (5) through the sliding block (603).

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