Nameplate fastening device for circuit breaker

Abstract

The utility model relates to a nameplate fastening device for a circuit breaker, which comprises a fixed plate and a joint fixedly connected to a horizontal pull rod of the circuit breaker, the fixed plate is fixedly connected to the joint through a hoop, and one side, far away from the circuit breaker, of the fixed plate is fixedly connected with a nameplate; the structure of the fastening device is simplified through the hoop and the fixing plate, production and machining of the fastening device are facilitated, production cost is saved, and the fastening device is simple, efficient, safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a nameplate mounting technical field, especially a kind of nameplate fastening device for circuit breaker. BACKGROUND

[0002] The current transformer of vacuum overcurrent transformer type circuit breaker is located inside the crossbeam, and the crossbeam needs to be installed with opening spring, crank arm, horizontal pull rod, insulating pull rod, on-off indication nameplate, current transformer and other components; the on-off indication nameplate is installed on the joint at the end of horizontal pull rod and moves with horizontal pull rod, and the shell of circuit breaker is provided with observation window, and the indication condition of on-off indication nameplate can be observed at any time through observation window.

[0003] As Figure 7 The fastening device for fixing and connecting on-off indication nameplate on the joint of horizontal pull rod usually adopts two oppositely arranged clamps to clamp the joint, and the joint is provided with arc-shaped groove matched with the joint to increase the contact area of clamp and joint; then the clamp is fixed with nameplate through connecting rod perpendicular to clamp.

[0004] However, the existing scheme has the following problems: first, the clamp has a certain thickness, and it is troublesome to open arc-shaped groove on the clamp, which greatly increases the production difficulty of fastening device; second, the clamp and connecting rod occupy a large amount of installation space; third, the nameplate is far away from the axis of joint, so that the center of gravity of nameplate is far away from the axis of joint, and the installation position of existing joint is cylindrical structure, which further causes the nameplate to rotate on the joint during long-time movement, affecting the observation of nameplate. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of nameplate fastening device for circuit breaker by hoop and fixed plate simplification fastening device's structure, it is convenient for the production and processing of fastening device, saves production cost, simple and efficient, safe and reliable, easy to operate.

[0006] The utility model is implemented by the following technical solutions, provides nameplate fastening device for circuit breaker, including fixed plate and the joint fixed on the horizontal pull rod of circuit breaker, fixed plate is fixed on the joint by hoop, and the side of fixed plate away from circuit breaker is fixed with nameplate;The structure of fastening device is simplified by hoop and fixed plate, which is convenient for the production and processing of fastening device and saves production cost;At the same time, the installation space occupied by nameplate and fastening device is reduced;And the distance between the center of gravity of nameplate and the axis of joint is reduced, and the degree of nameplate deviation is reduced.

[0007] As optimization, the limiting mechanism is arranged on the joint, the limiting mechanism forms a limiting groove, the hoop and the fixing plate are located in the limiting groove, and the two ends of the hoop and / or the fixing plate are arranged in close contact with the two ends of the limiting groove; the limiting mechanism prevents the hoop and the fixing plate from falling off the joint.

[0008] As optimization, the limiting mechanism comprises a limiting protrusion fixed on one end of the joint close to the horizontal pull rod and extending along the circumference of the joint, a screw hole extending along the axis of the joint is arranged at the other end of the joint away from the horizontal pull rod, a screw threadedly matched with the screw hole is arranged in the screw hole, and the diameter of the head of the screw is greater than the diameter of the joint; the screw can be used to fixedly connect the hoop and the fixing plate of different sizes on the joint.

[0009] As optimization, the hoop is fixedly connected with the fixing plate through a plurality of bolts, the bolts are arranged in sequence along the axis of the joint, and the bolts are located on the two sides of the joint respectively; the bolts prevent the hoop and the fixing plate from deviating on the joint.

[0010] As optimization, a limiting surface matched with the side of the fixing plate facing the joint is arranged on the side of the joint facing the fixing plate, and the axis of the limiting surface is away from the axis of the joint; the limiting surface prevents the hoop and the fixing plate from rotating on the joint.

[0011] The utility model discloses the beneficial effects are: through the hoop and the fixing plate, the structure of fastening device is simplified, and the production and processing of fastening device are convenient, and the production cost is saved, the installation space of nameplate and fastening device is reduced, and the distance between the gravity center of nameplate and the axis of joint is reduced, and the degree of nameplate deviation is reduced, the limiting mechanism prevents the hoop and the fixing plate from falling off the joint, the screw can be used to fixedly connect the hoop and the fixing plate of different sizes on the joint, the bolts prevent the hoop and the fixing plate from deviating on the joint, and the limiting surface prevents the hoop and the fixing plate from rotating on the joint. ACCURACY OF DRAWINGS

[0012] Figure 1 It is structure schematic drawing of the utility model;

[0013] Figure 2 It is hoop structure view of the utility model;

[0014] Figure 3 It is fixing plate structure view of the utility model;

[0015] Figure 4 It is joint structure view of the utility model;

[0016] Figure 5 It is connection schematic drawing of the joint, screw and hoop of the utility model;

[0017] Figure 6 It is installation schematic drawing of the utility model;

[0018] Figure 7 is a schematic view of the prior art structure;

[0019] shown in the figure:

[0020] 1, horizontal pull rod, 2, joint, 3, fixed plate, 4, hoop, 5, nameplate, 6, bolt, 7, limiting mechanism, 8, clamping plate, 9, connecting rod, 201, limiting surface, 202, screw hole, 701, limiting protrusion, 702, screw, 703, flat spring pad. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of the present application, the present application will be described below through specific embodiments.

[0022] As shown in Figure 1 and Figure 6 The utility model discloses a nameplate fastening device for circuit breaker, including fixed plate 3 and the joint 2 of fixed connection in circuit breaker horizontal pull rod 1, fixed plate 3 is fixedly connected on the joint 2 through hoop 4, and the side of fixed plate 3 away from circuit breaker is fixedly connected with nameplate 5, the joint 2 extends along the axial direction of horizontal pull rod 1, and the nameplate 5 and fixed plate 3 are parallel to each other, and the fixed plate 3 is used for preventing the deformation of the nameplate 5 during the fastening process, and the hoop 4 can increase the contact area of the fastening device and the joint 2 to prevent the fastening device from sliding on the joint 2.

[0023] The joint 2 is fixedly connected to the horizontal pull rod 1, the fixed plate 3 is fixedly connected to the joint 2 through the hoop 4, and the nameplate 5 is fixedly connected to the side of the fixed plate 3 away from the hoop 4, after the circuit breaker is started, the horizontal pull rod 1 drives the joint 2 to reciprocate, and the joint 2 drives the nameplate 5 to reciprocate through the hoop 4 and the fixed plate 3.

[0024] As shown in Figure 4 and Figure 5 The joint 2 is provided with a limiting mechanism 7, the limiting mechanism 7 forms a limiting groove, the hoop 4 and the fixed plate 3 are located in the limiting groove, and the two ends of the hoop 4 and / or the fixed plate 3 are respectively arranged in close contact with the two ends of the limiting groove.

[0025] The fixed plate 3 is fixedly connected to the joint 2 in the limiting groove through the hoop 4.

[0026] As shown in Figure 4 and Figure 5 The limiting mechanism 7 includes a limiting protrusion 701 fixedly arranged at one end of the joint 2 close to the horizontal pull rod 1 and extending along the circumferential direction of the joint 2, a screw hole 202 is formed at one end of the joint 2 away from the horizontal pull rod 1 and extending along the axial direction of the joint 2, a screw 702 is arranged in the screw hole 202 and is threadedly matched with the screw hole 202, and the diameter of the head of the screw 702 is greater than the diameter of the joint 2, and the screw 702 fastens the hoop 4 and the fixed plate 3 on the joint 2 through the flat spring pad 703.

[0027] The fixing plate 3 is fixed to the joint 2 by the hoop 4, and one end of the hoop 4 and / or the fixing plate 3 is in abutment with the limiting protrusion 701; the screw 702 is rotated in the screw hole 202 until the head of the screw 702 fastens the hoop 4 and / or the fixing plate 3 to the joint 2.

[0028] As shown in Figure 1 , 2 and 3, the hoop 4 is fixed to the fixing plate 3 by the bolts 6, the bolts 6 are arranged in sequence along the axis of the joint 2, and the bolts 6 are respectively located on the two sides of the joint 2; the hoop 4 is fixed to the fixing plate 3 by six bolts 6, and the nameplate 5 is fixed to the fixing plate 3 by two bolts 6.

[0029] The fixing plate 3 and the hoop 4 are respectively placed on the two sides of the joint 2, and the fixing plate 3 and the hoop 4 are fixed by the bolts 6, and the fixing plate 3 and the hoop 4 are fastened to the joint 2.

[0030] As shown in Figure 4 and Figure 5 , the side of the joint 2 facing the fixing plate 3 is provided with a limiting surface 201 matched with the side of the fixing plate 3 facing the joint 2, and the axis of the limiting surface 201 is away from the axis of the joint 2; the limiting surface 201 extends along the axis of the joint 2.

[0031] The fixing plate 3 is placed on one side of the joint 2 and abuts with the limiting surface 201, and the hoop 4 is placed on the side of the joint 2 away from the limiting surface 201, and the fixing plate 3 and the hoop 4 enclose the joint 2.

[0032] In actual production, the joint 2 is fixed to the horizontal pull rod 1, the fixing plate 3 is placed on one side of the joint 2 and abuts with the limiting surface 201, and the hoop 4 is placed on the side of the joint 2 away from the limiting surface 201, and the fixing plate 3 and the hoop 4 enclose the joint 2, the fixing plate 3 and the hoop 4 are fixed by the bolts 6, and the fixing plate 3 and the hoop 4 are fastened to the joint 2; one end of the hoop 4 and / or the fixing plate 3 is in abutment with the limiting protrusion 701; the screw 702 is rotated in the screw hole 202 until the head of the screw 702 fastens the hoop 4 and / or the fixing plate 3 to the joint 2; after the circuit breaker is started, the horizontal pull rod 1 drives the joint 2 to reciprocate, and the joint 2 drives the nameplate 5 to reciprocate through the hoop 4 and the fixing plate 3.

[0033] Of course, the above description is also not limited to the above examples, the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not a limitation on the utility model, the utility model has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A nameplate fastening device for a circuit breaker, characterized by: The utility model relates to a fixing plate (3) and the joint (2) of fixedly connected in circuit breaker horizontal pull rod (1), the fixing plate (3) is fixedly connected through the hoop (4) in the joint (2), and the side of the fixing plate (3) away from the circuit breaker is fixedly connected with the nameplate (5).

2. The nameplate fastening device for a circuit breaker according to claim 1, characterized by: The joint (2) is provided with a limiting mechanism (7), the limiting mechanism (7) forms a limiting groove, the hoop (4) and the fixing plate (3) are located in the limiting groove, and the two ends of the hoop (4) and / or the fixing plate (3) are respectively arranged in close contact with the two ends of the limiting groove.

3. The nameplate fastening device for a circuit breaker according to claim 2, characterized by: The limiting mechanism (7) includes a limiting protrusion (701) fixedly arranged on the joint (2) close to the horizontal pull rod (1) and extending along the circumference of the joint (2), the end of the joint (2) away from the horizontal pull rod (1) is provided with a screw hole (202) extending along the axis of the joint (2), the screw hole (202) is provided with a screw (702) threadedly matched with the screw hole (202), and the diameter of the head of the screw (702) is greater than the diameter of the joint (2).

4. The nameplate fastening device for a circuit breaker of claim 1, wherein: The hoop (4) is fixedly connected with the fixing plate (3) through a plurality of bolts (6), the bolts (6) are arranged in sequence along the axis of the joint (2), and the bolts (6) are respectively located on the two sides of the joint (2).

5. The nameplate fastening device for a circuit breaker of claim 1, wherein: The side of the joint (2) facing the fixing plate (3) is provided with a limiting surface (201) matched with the side of the fixing plate (3) facing the joint (2), and the axis of the limiting surface (201) is away from the axis of the joint (2).

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