Remote control operation device of caliper type current transformer
By designing a remote control operation device, the remote-controlled kneading current transformer clamp handle is realized by using an insulated telescopic rod and a push rod button remote control, solving the problem of high safety risks in the existing technology and achieving safe and convenient current measurement operations.
Patent Information
- Application Number
- CN202422168654.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-04
AI Technical Summary
When measuring line current values of existing caliper current transformers, operators need to manually pinch the clamp handle at close range, which poses safety risks such as electric shock and drop, and lacks a remote control operation design.
A remote control operating device including an insulated telescopic rod, a push rod button remote control and a fixed component is designed. By controlling the push rod button remote control, the adjustable push rod extends, and the rotating frame is driven to rotate, so as to realize the operation of the remote-control kneading current transformer clamp handle.
It realizes the remote control of the kneading current transformer clamp handle at a long distance, reducing the safety risks of operators and improving the convenience and safety of operation.
Smart Images
Figure CN223217518U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of caliper type current transformer remote control devices, and in particular relates to a remote control operating device for a caliper type current transformer. Background Art
[0002] Clamp-type current transformers are widely used in power measurement and operation and maintenance, and are mainly used to measure the current value of 10kV and below transmission lines. Clamp-type current transformers work based on the principle of electromagnetic induction and use a built-in mutual inductor (current transformer) to measure the AC current passing through the conductor.
[0003] When the existing caliper-type current transformer measures the line current value, the opening and closing operation of the caliper is mainly performed by the operator wearing insulating gloves and manually pinching it, or the caliper handle is released and opened by the spring to perform the opening and closing operation. Since the equipment under test is usually compact, the operator needs to be very close to the equipment under test, so there is a possibility of accidentally touching the live equipment and causing electric shock to the person; when the equipment under test is a 10kV or 380V transmission line, it is usually necessary to use ladders and other climbing tools for close operation. In addition to the risk of electric shock caused by accidentally touching the equipment, there are also personal safety risks such as falling when climbing; when the caliper-type current transformer is used, there is a problem that there is no design for remote control of the current transformer handle. For this reason, the present application proposes a remote control operation device for the caliper-type current transformer. Utility Model Content
[0004] The purpose of the utility model is to provide a remote control operation device for a clamp-type current transformer, so as to solve the problem in the background art that the clamp-type current transformer handle cannot be remotely controlled when in use.
[0005] To achieve the above purpose, the present invention provides the following technical solutions: a remote control device for a clamp-type current transformer, comprising:
[0006] A remote control lever for fixing a caliper current transformer includes an insulating telescopic rod, an electric push rod button remote control mounted on the end of the insulating telescopic rod, and a fixing assembly connected to the caliper current transformer. The fixing assembly includes a mounting box connected to one end of the insulating telescopic rod, a stabilizing plate symmetrically mounted on the mounting box, and a connecting plate mounted on the stabilizing plate. The caliper current transformer includes a second clamp handle b and a first clamp handle a mounted between the opposing stabilizing plates. The second clamp handle b is provided with a limit sleeve.
[0007] The adjustment assembly installed on the installation box includes a fixed plate installed inside the installation box, an adjustment push rod installed vertically on the fixed plate, a cover plate connected to the end of the adjustment push rod, and an adjustment rod connected to the cover plate at one end;
[0008] The closing assembly comprises a rotating frame connected to the connecting plate and a connecting rod with one end connected to the rotating frame. A reset member is provided between the rotating frame and the connecting plate.
[0009] Preferably, the reset member includes a fixing column installed between opposite surfaces of the connecting plate, a limiting column with one end installed inside the rotating frame, and a reset spring symmetrically distributed on the limiting column.
[0010] Preferably, the rotating frame is a square tube structure with one end sealed, and an arc groove is provided at the sealed end of the rotating frame. The limiting column includes a cylindrical connecting part and a limiting part, one end of the connecting part is connected to the fixed column, and the reset spring is sleeved on the outside of both ends of the limiting part.
[0011] Preferably, a movable circular hole is provided at a corner position of the rotating frame, the connecting rod is a "U"-shaped structure, and the end of the connecting rod is provided with a right-angle end passing through the movable circular hole.
[0012] Preferably, a fixing cylinder is provided on the outer side of the middle position of the connecting rod, and a limiting groove cooperating with the fixing cylinder is provided on the outer surface of the limiting sleeve.
[0013] Preferably, the limiting sleeve is a frame structure with an opening on one side, and parallel and opposite lips are provided on the open side surface of the limiting sleeve.
[0014] Preferably, a limiting block is provided inside the installation box, and a rectangular groove is provided on the limiting block to cooperate with the fixing plate. The adjusting rod is a bent structure, and a pressing ball is provided on the end of the adjusting rod inserted into the rotating frame, and the pressing ball is tangent to the inner wall of the rotating frame.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] In the utility model, when the caliper-type current transformer is in use, the current transformer clamp handle can be pinched and closed by remote control, and the electric push rod button remote control is operated to make the adjustment electric push rod become an extended state, the cover plate and the adjustment rod move, and one end of the adjustment rod is pressed against and drives the rotating frame to rotate, and the rotating frame drives the connecting rod to move, and the connecting rod acts on the limit sleeve and the second clamp handle b, so that the second clamp handle b and the first jaw a are in a pinching state, which is conducive to clamping the wire. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the utility model;
[0018] Figure 2 This is a schematic diagram of the top view of the installation box of the present invention;
[0019] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;
[0020] Figure 4 This is a schematic cross-sectional view of the installation box of the present invention along the dotted line F;
[0021] Figure 5 This is a schematic cross-sectional structural diagram of the rotating frame of the present utility model;
[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating frame of the present invention;
[0023] Figure 7 This is a structural diagram of the limit sleeve of the utility model;
[0024] In the figure: 1. Caliper current transformer; 2. Insulating telescopic rod; 11. Limit sleeve; 21. Electric push rod button remote control; 31. Mounting box; 32. Stabilizing plate; 33. Connecting plate; 41. Rotating frame; 42. Connecting rod; 51. Cover plate; 52. Adjusting rod; 53. Adjusting electric push rod; 54. Fixing plate; 111. Limiting groove; 311. Limiting block; 331. Fixing column; 411. Limiting column; 412. Reset spring; 421. Fixing cylinder. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] See also Figures 1 to 7The utility model provides a technical solution: a remote control operation device for a caliper type current transformer, including a remote control operating rod for fixing the caliper current transformer 1. The principle and method of using the caliper current transformer 1 are conventional technical means, and this application will not go into detail. It includes an insulating telescopic rod 2, an electric push rod button remote control 21 installed on the end of the insulating telescopic rod 2, and a fixed component connected to the caliper current transformer 1. The electric push rod button remote control 21 controls the start of the electric push rod 53 through conventional technical means. The insulating telescopic rod 2 can be stretched and lengthened, which is suitable for different heights. The wire is measured, and the fixing assembly includes a mounting box 31 connected to one end of the insulating telescopic rod 2, a stabilizing plate 32 symmetrically mounted on the mounting box 31, and a connecting plate 33 mounted on the stabilizing plate 32. The stabilizing plate 32 and the connecting plate 33 are combined with the first clamp handle a of the caliper current transformer 1 by a conventional method. The caliper current transformer 1 includes a second clamp handle b, a first clamp handle a mounted between the opposing stabilizing plates 32, and the second clamp handle b is pinched. When the caliper current transformer 1 is in an open state and the second clamp handle b is in a stress-free state, the second clamp handle b is in a torsion spring state. The second clamp handle b is automatically opened by pressing down, and a limit sleeve 11 is provided on the second clamp handle b. The limit sleeve 11 and the second clamp handle b are combined by conventional methods, and the limit sleeve 11 plays the role of limiting the connecting rod 42; the adjustment component installed on the installation box 31 includes a fixed plate 54 installed inside the installation box 31, an adjustment electric push rod 53 vertically installed on the fixed plate 54, a covering plate 51 connected to the end of the adjustment electric push rod 53, and an adjustment rod 52 connected to the covering plate 51 at one end. The adjustment electric push rod 53 runs and becomes an extended state, the covering plate 51 and the adjustment rod 52 move, and the adjustment rod 5 2 one end abuts against and toggles the rotating frame 41 to rotate, so that the rotating frame 41 is in a state of opening outward; the closing component includes a rotating frame 41 connected to the connecting plate 33, and a connecting rod 42 with one end connected to the rotating frame 41. A reset member is provided between the rotating frame 41 and the connecting plate 33. One end of the connecting rod 42 is limited by the rotating frame 41, and the middle position of the connecting rod 42 bypasses the limiting sleeve 11 and can abut against the limiting sleeve 11. The rotating rotating frame 41 will drive the connecting rod 42 to move, and the connecting rod 42 acts on the limiting sleeve 11 and the second clamp handle b, so that they are in a pinching state, which is conducive to clamping the wire.
[0027] In this embodiment, the reset member includes a fixed column 331 installed between the opposite surfaces of the connecting plate 33, a limiting column 411 with one end installed inside the rotating frame 41, and a reset spring 412 symmetrically distributed on the limiting column 411. The fixed column 331 plays the role of firmly limiting the column 411. The rotating frame 41 rotates a certain angle with the limiting column 411 as the axis. The rotating frame 41 can be rotated and reset under the action of the reset spring 412.
[0028] In this embodiment, the rotating frame 41 is a square tube structure with one end sealed, and an arc groove is provided at the sealed end of the rotating frame 41. The limiting column 411 does not affect the rotation of the rotating frame 41. The limiting column 411 includes a cylindrical connecting portion and a limiting portion. One end of the connecting portion is connected to the fixed column 331, and the reset spring 412 is sleeved on the outside of the two ends of the limiting portion. When the rotating frame 41 is not subjected to external force, the rotating frame 41 can be rotated and reset under the action of the reset spring 412.
[0029] In this embodiment, a movable circular hole is provided on the corner position of the rotating frame 41, and the connecting rod 42 is a "U"-shaped structure. The end of the connecting rod 42 is provided with a right-angle end passing through the movable circular hole. The end of the connecting rod 42 is inserted into the interior of the rotating frame 41. When the rotating frame 41 rotates, it can drive the connecting rod 42 to move, and the connecting rod 42 can pinch the second clamp handle b.
[0030] In this embodiment, a fixing cylinder 421 is provided on the outside of the middle position of the connecting rod 42, and a limiting groove 111 is provided on the outer surface of the limiting sleeve 11 to cooperate with the fixing cylinder 421. The fixing cylinder 421 is embedded in the limiting groove 111, so that the fixing cylinder 421 and the connecting rod 42 are limited to prevent the connecting rod 42 from being misplaced.
[0031] In this embodiment, the limiting sleeve 11 is a frame structure with an open side, and parallel and opposing lips are provided on the open side surface of the limiting sleeve 11. Screw holes can be opened on the lips, and the limiting sleeve 11 can be firmly connected to the second clamp handle b by conventional bolts.
[0032] In this embodiment, a limiting block 311 is provided inside the mounting box 31, and a rectangular groove is provided on the limiting block 311 to cooperate with the fixing plate 54. The adjusting rod 52 has a bent structure, which is convenient for the end of the adjusting rod 52 to be inserted into the rotating frame 41. A pressing ball is provided on the end of the adjusting rod 52 inserted into the rotating frame 41. The pressing ball is tangent to the inner wall of the rotating frame 41. The friction between the pressing ball at the end of the adjusting rod 52 and the inner wall of the rotating frame 41 is small, and does not affect the rotation of the rotating frame 41.
[0033] The working principle and use process of this utility model:
[0034] When the caliper current transformer 1 is testing the current, the insulating telescopic rod 2 is stretched to a suitable length, and the electric push rod button remote control 21 is operated to make the adjustment electric push rod 53 become an extended state;
[0035] When the adjusting electric push rod 53 is activated and extended, the cover plate 51 and the adjusting rod 52 move, and one end of the adjusting rod 52 abuts against and drives the rotating frame 41 to rotate, so that the rotating frame 41 is in a state of opening outward. The friction between the pressing ball at the end of the adjusting rod 52 and the inner wall of the rotating frame 41 is small, which does not affect the rotation of the rotating frame 41.
[0036] The rotating frame 41 rotates a certain angle around the limiting column 411. The rotating frame 41 can be rotated and reset under the action of the reset spring 412. The rotating rotating frame 41 drives the connecting rod 42 to move. The connecting rod 42 acts on the limiting sleeve 11 and the second clamp handle b, making them in a pinching state, which is conducive to clamping the wire;
[0037] After the opened caliper current transformer 1 is in a suitable position outside the wire, the electric push rod button remote control 21 is operated to make the adjustment electric push rod 53 become the shortened state;
[0038] The rotating frame 41 rotates and resets under the action of the reset spring 412, and the second clamp handle b and the first clamp a of the clamp current transformer 1 clamp the wire to facilitate its detection;
[0039] To sum up: when the caliper-type current transformer is in use, the current transformer handle can be pinched remotely, and the electric push rod button remote control 21 can be operated to make the adjustment electric push rod 53 become an extended state, the covering plate 51 and the adjusting rod 52 move, and one end of the adjusting rod 52 is pressed against and drives the rotating frame 41 to rotate, and the rotating frame 41 drives the connecting rod 42 to move, and the connecting rod 42 acts on the limit sleeve 11 and the second clamp handle b, so that the second clamp handle b and the first jaw a are in a pinching state, which is conducive to clamping the wire.
[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A remote control device for a clamp-type current transformer, characterized in that: include A remote control operating rod for fixing a clamp current transformer (1), comprising an insulating telescopic rod (2), an electric push rod button remote control (21) mounted on the end of the insulating telescopic rod (2), and a fixing assembly connected to the clamp current transformer (1), the fixing assembly comprising a mounting box (31) connected to one end of the insulating telescopic rod (2), a stabilizing plate (32) symmetrically mounted on the mounting box (31), and a connecting plate (33) mounted on the stabilizing plate (32), the clamp current transformer (1) comprising a second clamp handle b, a first clamp handle a mounted between the opposing stabilizing plates (32), and a limit sleeve (11) provided on the second clamp handle b; An adjustment assembly mounted on the mounting box (31), comprising a fixing plate (54) mounted inside the mounting box (31), an adjustment electric push rod (53) mounted vertically on the fixing plate (54), a covering plate (51) connected to an end of the adjustment electric push rod (53), and an adjustment rod (52) having one end connected to the covering plate (51); The closing assembly comprises a rotating frame (41) connected to the connecting plate (33), and a connecting rod (42) having one end connected to the rotating frame (41). A reset member is provided between the rotating frame (41) and the connecting plate (33).
2. The remote control device for a clamp-type current transformer according to claim 1, characterized in that: The reset member comprises a fixing column (331) installed between opposite surfaces of the connecting plate (33), a limiting column (411) one end of which is installed inside the rotating frame (41), and a reset spring (412) symmetrically distributed on the limiting column (411).
3. The remote control device for a clamp-type current transformer according to claim 2, characterized in that: The rotating frame (41) is a square tube structure with one end sealed, and an arc groove is provided at the sealed end of the rotating frame (41). The limiting column (411) comprises a cylindrical connecting portion and a limiting portion, one end of the connecting portion is connected to the fixed column (331), and the return spring (412) is sleeved on the outside of both ends of the limiting portion.
4. The remote control device for a clamp-type current transformer according to claim 1, characterized in that: A movable circular hole is provided at a corner position of the rotating frame (41), the connecting rod (42) is a "U"-shaped structure, and the end of the connecting rod (42) is provided with a right-angle end that passes through the movable circular hole.
5. The remote control device for a clamp-type current transformer according to claim 1, characterized in that: A fixing cylinder (421) is provided on the outer side of the middle position of the connecting rod (42), and a limiting groove (111) is provided on the outer surface of the limiting sleeve (11) to cooperate with the fixing cylinder (421).
6. The remote control device for a clamp-type current transformer according to claim 1, characterized in that: The limiting sleeve (11) is a frame structure with an opening on one side, and parallel and opposing lips are provided on the open side surface of the limiting sleeve (11).
7. The remote control device for a clamp-type current transformer according to claim 1, characterized in that: A limiting block (311) is provided inside the installation box (31), and a rectangular groove is provided on the limiting block (311) for cooperating with the fixing plate (54). The adjusting rod (52) is a bent structure, and a pressing ball is provided on the end of the adjusting rod (52) inserted into the rotating frame (41), and the pressing ball is tangent to the inner wall of the rotating frame (41).