A wiring structure of a track-type electric energy meter

Abstract

The utility model discloses a kind of wiring structure of guide rail type electric energy meter, comprising: track type electric energy meter body, clamping structure, pushing structure, linkage structure and locking structure, the clamping structure is set in the inner wall of track type electric energy meter body.Through setting clamping structure, pushing structure and linkage structure, after entering installation groove after wire passes through protective cylinder, wire will be between clamping plate and terminal at this time, after rotating locking nut can drive linkage structure and drive push block to be close to pulley, so it can be driven clamping plate to rotate by the inclined plane of pulley contact push block, and wire is clamped, when rotating locking nut excessively, pulley will be separated from the inclined plane of push block, and move to the plane of push block, at this time, holding force is unchanged, so it can avoid clamping plate excessively clamping wire, break the mode of fixing wire by tightening bolt in tradition, avoid the problem that bolt or terminal is damaged by excessive fastening bolt.

Description

Technical Field

[0001] This utility model relates to the field of electricity meters, and in particular to a wiring structure for a rail-mounted electricity meter. Background Technology

[0002] The rail-mounted electricity meter adopts a modular design, which has the advantages of small size, easy installation, and easy networking. It is easy to realize terminal lighting electricity metering and facilitates the retrofitting of lighting systems with electricity meters.

[0003] Chinese patent announcement number CN218350355U discloses a terminal structure for an electricity meter, including a structural plate with a first end plate and a second end plate formed at both ends. The first and second end plates overlap to form a frame structure. Through holes are provided on the first and second end plates, and the end side of the first or second end plate is connected to the side wall of the frame structure. This utility model's terminal structure for an electricity meter achieves mutual stretching and compression by connecting the end side of the first or second end plate to the side wall of the frame structure, thereby enhancing the strength of the terminal head and preventing deformation and bending of the terminal.

[0004] However, this device has the following drawbacks during use: the method of fixing the wires with bolts makes it difficult to control the tightening force of the bolts, and over-tightening the bolts may damage the bolts or terminals. To address these drawbacks, we propose a wiring structure for a DIN rail-mounted energy meter. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where it is difficult to control the tightening force of bolts when fixing wires with bolts, and excessive tightening may damage the bolts or terminals. Therefore, this invention proposes a wiring structure for a rail-mounted energy meter.

[0006] To address the problems existing in the prior art, the present invention adopts the following technical solution:

[0007] A wiring structure for a rail-mounted energy meter, comprising:

[0008] Track-mounted energy meter body;

[0009] The clamping structure is disposed on the inner wall of the track-mounted energy meter body, and includes a mounting groove formed on the inner wall of the track-mounted energy meter body, a support frame and a wiring terminal fixedly installed on the bottom wall of the mounting groove, and a clamping plate rotatably connected to the inner wall of the support frame.

[0010] A pushing structure is provided inside the mounting groove, which includes a push block that is slidably mounted on the inner wall of the mounting groove, and a pulley that is rotatably connected to one end of the clamping plate;

[0011] The linkage structure is located on one side of the push block and includes a turntable and L-shaped connecting rods fixedly installed on both sides of the push block. The front of the track-type energy meter body has a through hole for the L-shaped connecting rod to pass through. One end of the L-shaped connecting rod passes through the through hole and is fixedly connected to one side of the turntable.

[0012] A locking structure is provided on the front of the track-mounted energy meter body and is used to lock the wires.

[0013] Preferably, the locking structure includes a protective cylinder fixedly installed on the front of the track-mounted energy meter body, a conical spring sleeve sleeved on the inner wall of the protective cylinder, and a locking nut threaded onto the surface of the protective cylinder.

[0014] Preferably, one end of the protective cylinder extends to the inner wall of the mounting groove, and the inner wall of the protective cylinder is provided with a tapered groove that is compatible with the tapered spring sleeve.

[0015] Preferably, the side of the turntable away from the L-shaped connecting rod is rotatably connected to the back of the locking nut.

[0016] Preferably, the locking nut and the push block have a circular hole at their center for the power supply line to pass through.

[0017] Preferably, the upper surface of the push block is provided with a ramp and a plane, and the push block is located directly below the pulley.

[0018] Preferably, the clamp is positioned directly above the wiring terminal.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By setting up a clamping structure, a pushing structure, and a linkage structure, after the wire passes through the protective cylinder into the installation groove, the wire will be between the clamp and the terminal block. Then, turning the locking nut will drive the linkage structure to push the push block closer to the pulley. The pulley can then contact the ramp surface of the push block to drive the clamp to rotate and clamp the wire. When the locking nut is turned too far, the pulley will disengage from the ramp surface of the push block and move to the flat surface of the push block. At this time, the clamping force remains unchanged, thus avoiding the clamp from over-clamping the wire. This breaks away from the traditional method of fixing the wire by tightening bolts and avoids the problem of damage to bolts or terminals caused by over-tightening bolts.

[0021] 2. By setting a locking structure, the conical spring sleeve is placed inside the protective cylinder. When the wire passes through the protective cylinder, the wire is inside the conical spring sleeve. When the locking nut is tightened, the locking nut will drive the conical spring sleeve to approach the conical groove, thereby causing the conical spring sleeve to contract and clamp the wire, which can further improve the stability of the wire connection. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention. The illustrative embodiments and descriptions of the invention are used to explain the present invention and do not constitute an undue limitation. In the drawings:

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0024] Figure 2 This is a side sectional view of the present invention;

[0025] Figure 3 This is a top sectional view of the present invention;

[0026] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 5 This is a side sectional view of the pusher block of this utility model.

[0028] The numbers in the diagram are: 1. Electricity meter body, 2. Support frame, 3. Terminal block, 4. Clamping plate, 5. Push block, 6. Pulley, 7. Turntable, 8. L-shaped connecting rod, 9. Protective cylinder, 10. Conical spring sleeve, 11. Locking nut, 12. Round hole. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please see Figure 1-5 This utility model provides a technical solution: a wiring structure for a rail-mounted energy meter, comprising: a rail-mounted energy meter body 1, a clamping structure, a pushing structure, a linkage structure, and a locking structure.

[0031] The clamping structure is set on the inner wall of the track-mounted energy meter body 1. It includes a mounting groove opened on the inner wall of the track-mounted energy meter body 1, a support frame 2 and a terminal block 3 fixedly installed on the bottom wall of the mounting groove, and a clamping plate 4 rotatably connected to the inner wall of the support frame 2. The clamping plate 4 is located directly above the terminal block 3. The wire can be clamped between the clamping plate 4 and the terminal block 3 by rotating the clamping plate 4.

[0032] The locking structure is located on the front of the track-mounted energy meter body 1. The locking structure includes a protective cylinder 9 fixedly installed on the front of the track-mounted energy meter body 1, a conical spring sleeve 10 sleeved on the inner wall of the protective cylinder 9, and a locking nut 11 threadedly connected to the surface of the protective cylinder 9. One end of the protective cylinder 9 extends to the inner wall of the mounting groove, and the inner wall of the protective cylinder 9 is provided with a conical groove that matches the conical spring sleeve 10.

[0033] After the wire passes through the protective sleeve 9, it is now inside the conical spring sleeve 10. When the locking nut 11 is tightened, it will cause the conical spring sleeve 10 to move closer to the conical groove, thereby causing the conical spring sleeve 10 to contract and clamp the surface of the wire, thus improving the stability of the wire connection.

[0034] The pushing structure is set inside the mounting groove, which includes a push block 5 that is slidably installed on the inner wall of the mounting groove, and a pulley 6 that is rotatably connected to one end of the clamping plate 4. The upper surface of the push block 5 is provided with a slope surface and a flat surface, and the push block 5 is located directly below the pulley 6. The locking nut 11 and the center of the push block 5 are provided with a round hole 12 through which the power supply line passes.

[0035] The linkage structure is set on one side of the push block 5, which includes a turntable 7 and L-shaped connecting rods 8 fixedly installed on both sides of the push block 5. The front of the track-type energy meter body 1 is provided with a through hole for the L-shaped connecting rod 8 to pass through. One end of the L-shaped connecting rod 8 passes through the through hole and is fixedly connected to one side of the turntable 7. The side of the turntable 7 away from the L-shaped connecting rod 8 is rotatably connected to the back of the locking nut 11. When the locking nut 11 is rotated, the turntable 7 will move accordingly, so that the push block 5 can be moved by using the L-shaped connecting rod 8.

[0036] After the wire is passed through the protective cylinder 9 into the mounting groove, the wire will be between the clamp 4 and the terminal 3. Then, turning the locking nut 11 will drive the linkage mechanism to push the push block 5 closer to the pulley 6. The pulley 6 can then contact the ramp surface of the push block 5 to drive the clamp 4 to rotate and clamp the wire. When the locking nut 11 is turned too far, the pulley 6 will disengage from the ramp surface of the push block 5 and move to the flat surface of the push block 5. At this time, the clamping force remains unchanged, thus avoiding the clamp 4 from over-clamping the wire. This breaks away from the traditional method of fixing the wire by tightening bolts and avoids the problem of damage to the bolts or terminal 3 caused by over-tightening the bolts.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wiring structure for a rail-mounted energy meter, characterized in that, include: Track-mounted energy meter body (1); The clamping structure is set on the inner wall of the track-type energy meter body (1), which includes an installation groove opened on the inner wall of the track-type energy meter body (1), a support frame (2) and a terminal block (3) fixedly installed on the bottom wall of the installation groove, and a clamping plate (4) rotatably connected to the inner wall of the support frame (2). The pushing structure is disposed inside the mounting groove, and includes a push block (5) slidably mounted on the inner wall of the mounting groove, and a pulley (6) rotatably connected to one end of the clamping plate (4); The linkage structure is set on one side of the push block (5), which includes a turntable (7) and an L-shaped connecting rod (8) fixedly installed on both sides of the push block (5). The front of the track-type energy meter body (1) is provided with a through hole for the L-shaped connecting rod (8) to pass through. One end of the L-shaped connecting rod (8) passes through the through hole and is fixedly connected to one side of the turntable (7). A locking structure is provided on the front of the track-mounted energy meter body (1) for locking the wires.

2. The wiring structure of a rail-mounted energy meter according to claim 1, characterized in that: The locking structure includes a protective cylinder (9) fixedly installed on the front of the track-mounted energy meter body (1), a conical spring sleeve (10) sleeved on the inner wall of the protective cylinder (9), and a locking nut (11) threaded onto the surface of the protective cylinder (9).

3. The wiring structure of a rail-mounted energy meter according to claim 2, characterized in that: One end of the protective cylinder (9) extends to the inner wall of the mounting groove, and the inner wall of the protective cylinder (9) is provided with a conical groove that is compatible with the conical spring sleeve (10).

4. The wiring structure of a rail-mounted energy meter according to claim 2, characterized in that: The turntable (7) is rotatably connected to the back of the locking nut (11) on the side away from the L-shaped connecting rod (8).

5. The wiring structure of a rail-mounted energy meter according to claim 2, characterized in that: The locking nut (11) and the push block (5) have a circular hole (12) for the power supply line to pass through at their center positions.

6. The wiring structure of a rail-mounted energy meter according to claim 1, characterized in that: The upper surface of the push block (5) is provided with a ramp and a plane, and the push block (5) is located directly below the pulley (6).

7. The wiring structure of a rail-mounted energy meter according to claim 1, characterized in that: The clamp (4) is located directly above the terminal block (3).

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