Simulation circuit breaker for detection

Abstract

The utility model discloses a simulation circuit breaker used for detection, comprising a box body, the front side of the box body is provided with a detachable front side plate, the box body is provided with a detection shaft, and the rear side of the box body and the detachable front side plate are provided with shaft holes used for installing the detection shaft; a guide block is arranged at the top of the box body, an arc-shaped rod is arranged on the guide block in a penetrating mode, a limiting ring is arranged at one end of the arc-shaped rod, a U-shaped bayonet is formed in the other end of the arc-shaped rod, and a spring is arranged on the arc-shaped rod and located between the guide block and the U-shaped bayonet. According to the utility model, the switch is installed on the box body through the detection shaft, the handle part of the switch is fixedly provided with the U-shaped bayonet, when the switch rotates, the switch drives the arc-shaped rod to move through the switch, so that the spring is compressed, in the opening and closing process of the switch, the received spring resistance is larger and larger, and through scale values on the angle disc, the angle of the arc-shaped rod is measured. The rotation angle of the switch is observed, and when the switch rotates to the scale value corresponding to the opening and closing strength, simulation of the opening and closing strength in the working process of the switch is achieved.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a simulated circuit breaker for detection. Background Art

[0002] The simulated circuit breaker is mainly used for the whole group test of the power system power-off protection device or the complete set of relay protection screens. It can truly simulate the tripping and closing time of the circuit breaker, and simulate the tripping and closing of the high-voltage circuit breaker during the whole group test to avoid the adverse effects caused by repeated opening and closing of the circuit breaker due to repeated whole group tests.

[0003] The strength of opening and closing directly determines the reliability of the simulated circuit breaker. Therefore, it is necessary to simulate the strength of the opening and closing of the simulated circuit breaker during operation. Currently, there is a lack of devices for simulating the strength of the opening and closing process, which results in that the existing circuit breakers cannot accurately open and close when in use. Therefore, it is necessary to propose a simulated circuit breaker for detection. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a simulated circuit breaker for detection.

[0005] In order to achieve the above-mentioned invention objectives, the technical solution adopted by the utility model is: it includes a box body, a detachable front side panel is provided on the front side of the box body, an opening is provided on the right side of the box body, a detection shaft is provided on the box body, the opening and closing switch is installed on the detection shaft, and an axial hole for installing the detection shaft is provided on the rear side of the box body and the disassembly front side panel; a guide block is provided on the top of the box body, an arc rod is provided through the guide block, a limiting ring is provided at one end of the arc rod, and a U-shaped bayonet is provided at the other end, a spring is provided on the arc rod, and the spring is located between the guide block and the U-shaped bayonet.

[0006] Furthermore, a semicircular angle disk is provided on the right side of the box body, and scale values ​​are provided on the angle disk.

[0007] Furthermore, the opening of the U-shaped bayonet is downward, and a threaded through hole is provided at one end of the U-shaped bayonet, and a fastening screw is provided in the threaded through hole.

[0008] Two limit magnetic strips are arranged on the detachable front side panel. The two limit magnetic strips are arranged in parallel on the upper and lower sides of the limit magnetic strips. The two limit magnetic strips are magnetically matched with the inner wall of the box.

[0009] Furthermore, it also includes a mounting plate for fixing the box body, on which two L-shaped mounting strips are arranged, the two L-shaped mounting strips are arranged in parallel in the horizontal direction, the lateral sections of the two L-shaped mounting strips are arranged inwardly, and the upper and lower sides of the box body are both provided with mounting protrusions that are engaged with the L-shaped mounting strips.

[0010] Furthermore, countersunk holes are arranged at the four corners of the mounting plate, and mounting screws are arranged in the countersunk holes.

[0011] Furthermore, the arc rod is a quarter arc rod.

[0012] Furthermore, the center of the arc rod coincides with the axis of the detection shaft.

[0013] The beneficial effects of the utility model are:

[0014] The box of the utility model is fixed on the mounting plate by sliding insertion, the mounting method of the box is simple and convenient, and the simulation direction of opening and closing the switch is perpendicular to the mounting direction of the box, so that the fixing method of the box is more reliable and the box is easy to install; the mounting plate can be conveniently fixed to the wall by mounting screws.

[0015] The opening and closing gate of the utility model is installed on the box body through the detection shaft, and the handle of the opening and closing gate is fixed with a U-shaped bayonet. When the opening and closing gate is rotated, the opening and closing gate drives the arc rod to move through the opening and closing gate, thereby compressing the spring. During the opening and closing process of the opening and closing gate, the spring resistance will become larger and larger. The rotation angle of the opening and closing gate is observed through the scale value on the angle disk. When the opening and closing gate is rotated to the scale value corresponding to the opening and closing strength, the simulation of the opening and closing strength during the opening and closing process of the opening and closing gate can be completed.

[0016] The utility model provides a detachable front side plate on the front side of the box body, and the detachable front side plate is fixed to the box body by two limiting magnetic strips, so that the installation and removal of the detachable front side plate are convenient, thereby facilitating the installation of the opening and closing switch on the detection shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model in the front view direction;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in the right view direction;

[0019] The symbols of the components are as follows:

[0020] 1. Box body; 111. Opening; 112. Removable front side panel; 113. Mounting protrusion; 114. Positioning magnetic strip; 115. Shaft hole;

[0021] 2. Mounting plate; 21. L-shaped mounting strip; 22. Mounting screws;

[0022] 3. Detection axis; 4. Opening and closing gate; 5. U-shaped bayonet; 6. Arc rod; 7. Guide block; 8. Spring; 9. Fastening screw; 10. Limiting ring; 11. Angle disk; 12. Scale value. DETAILED DESCRIPTION

[0023] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0024] like Figure 1 and 2 As shown, the simulated circuit breaker for detection is used in conjunction with the switch 4, and the simulated circuit breaker for detection includes a box 1, a detachable front side plate 112 is provided on the front side of the box 1, an opening 111 is provided on the right side of the box 1, a detection shaft 3 is provided on the box 1, and the switch 4 is installed on the detection shaft 3, and an axial hole 115 for installing the detection shaft 3 is provided on the rear side of the box 1 and the detachable front side plate 112, and the axial hole 115 on the rear side of the box 1 is interference fit or overfit with the detection shaft 3. A guide block 7 is provided on the top of the box 1, and the guide block 7 is vertically fixed on the side of the box 1. An arc rod 6 is provided through the guide block 7, and a guide hole is provided on the guide block 7. The guide block 7 is clearance-fitted with the arc rod 6, and a limit ring 10 is provided at one end of the arc rod 6, and a U-shaped bayonet 5 is provided at the other end. A spring 8 is provided on the arc rod 6, and the spring 8 is located between the guide block 7 and the U-shaped bayonet 5. The arc rod 6 is preferably a quarter arc rod. An extension section may be provided at one end of the arc rod 6 where the limit ring 10 is provided, for fixing and connecting the limit ring 10. The limit ring 10 may adopt a structure similar to an axle clamp, and an annular groove may be provided on the arc rod 6 to realize the limit fixation of the limit ring 10 on the arc rod 6. The limit ring 10 may also be directly bonded or welded to the arc rod 6. The center of the arc rod 6 coincides with the axis of the detection shaft 3, so that the arc rod 6 can rotate with the rotation of the opening and closing gate 4, thereby detecting and measuring the strength of the opening and closing gate 4.

[0025] In this embodiment, a semicircular angle disc 11 is provided on the right side of the box body 1, and a scale value 12 is provided on the angle disc 11. With the angle disc 11 and the scale value 12, the rotation angle of the opening and closing process of the opening and closing gate 4 can be intuitively observed, so that the strength of the opening and closing gate 4 can be simulated by using the compression amount of the spring 8.

[0026] In this embodiment, the opening of the U-shaped bayonet 5 is downward, and a threaded through hole is provided at one end of the U-shaped bayonet 5, and a fastening screw 9 is provided in the threaded through hole. The U-shaped bayonet 5 is connected to the upper side of the handle of the opening and closing gate 4 through the bayonet, so as to realize the bottom support of the spring 8, and the connection between the U-shaped bayonet 5 and the handle of the opening and closing gate 4 can be realized by the fastening screw 9, so as to ensure that the spring 8 can be compressed synchronously when the opening and closing gate 4 rotates.

[0027] In this embodiment, two limit magnetic strips 114 are arranged on the detachable front side plate 112, and the two limit magnetic strips 114 are arranged in parallel on the upper and lower sides of the limit magnetic strips 114. The two limit magnetic strips 114 are respectively at a certain distance from the upper and lower ends of the detachable front side plate 112, and the distance is the thickness of the box body 1. The thickness of the box body 1 is uniform. Through the magnetic attraction of the two limit magnetic strips 114 and the inner wall of the box body 1, the detachable front side plate 112 is quickly installed on the box body 1, and the detachable front side plate 112 limits and fixes the other end of the detection axis 4. The box body 1 is preferably made of iron-containing material, so that the limit magnetic strip 114 can be magnetically connected with the box body 1.

[0028] In this embodiment, a mounting plate 2 for fixing the box body 1 is also included. Two L-shaped mounting clips 21 are arranged on the mounting plate 2. The two L-shaped mounting clips 21 are arranged in parallel in the horizontal direction. The transverse sections of the two L-shaped mounting clips 21 are arranged inward. The upper and lower sides of the box body 1 are provided with mounting protrusions 113 that are engaged with the L-shaped mounting clips 21. After the mounting plate 2 is installed on the wall, the mounting protrusions 113 of the box body 1 are engaged with the L-shaped mounting clips 21 of the mounting plate 2, so that the horizontal sliding box body 1 can be fixed on the mounting plate 2, and the installation is fast and convenient. Countersunk holes are arranged at the four corners of the mounting plate 2, and mounting screws 22 are arranged in the countersunk holes. The mounting screws 22 can also be expansion screws, and the device can be fixed on the cavity, so that it is convenient to use the device to simulate the switch working process of the opening and closing switch 4, so as to detect the self-strength of the opening and closing switch 4.

[0029] Working process and principle: Before simulation, first fix the mounting plate 2 to the wall by tightening the screws 4. When simulating the working process of the opening and closing gate 4, first remove the detachable front side plate 112 connected by magnetic attraction, then fix the opening and closing gate 4 to the detection shaft 3, then fix the detachable front side plate 112 to the box 1, and then fix the U-shaped bayonet 5 to the handle position of the opening and closing gate 4. The clamping and fixing position of the U-shaped bayonet 5 should try to ensure that the U-shaped bayonet 5 and the guide block 7 are on the same rotation circle, and ensure that the compression direction of the spring 8 is consistent with the rotation direction of the opening and closing gate 4, such as Figure 1 When simulating, the handle of the gate 4 is used to drive the gate 4 to rotate. The gate 4 compresses the spring 8 during the rotation process. The resistance during the rotation of the gate 4 will become larger and larger after the spring 8 is compressed. When the gate 4 rotates to the scale value 12 corresponding to the strength, it means that the strength of the gate 4 during opening and closing meets the requirements, thereby realizing the strength simulation operation of the gate 4 during the opening and closing process.

Claims

1. A simulated circuit breaker for detection, used in conjunction with a switch (4), characterized in that: The invention comprises a box body (1), wherein a detachable front side plate (112) is arranged on the front side of the box body (1), an opening (111) is arranged on the right side of the box body (1), a detection shaft (3) is arranged on the box body (1), the opening and closing switch (4) is mounted on the detection shaft (3), and an axis hole (115) for mounting the detection shaft (3) is arranged on the rear side of the box body (1) and the detachable front side plate (112); A guide block (7) is arranged on the top of the box body (1), an arc-shaped rod (6) is arranged through the guide block (7), a limit ring (10) is arranged at one end of the arc-shaped rod (6), and a U-shaped bayonet (5) is arranged at the other end, a spring (8) is arranged on the arc-shaped rod (6), and the spring (8) is located between the guide block (7) and the U-shaped bayonet (5).

2. The simulated circuit breaker for detection according to claim 1, characterized in that: A semicircular angle disc (11) is arranged on the right side of the box body (1), and a scale value (12) is arranged on the angle disc (11).

3. The simulated circuit breaker for detection according to claim 1, characterized in that: The opening of the U-shaped bayonet (5) faces downwards, and one end of the U-shaped bayonet (5) is provided with a threaded through hole, in which a fastening screw (9) is provided.

4. The simulated circuit breaker for detection according to claim 1, characterized in that: Two limiting magnetic strips (114) are arranged on the detachable front side plate (112), and the two limiting magnetic strips (114) are arranged in parallel on the upper and lower sides of the limiting magnetic strip (114), and the two limiting magnetic strips (114) are magnetically matched with the inner wall of the box body (1).

5. The simulated circuit breaker for detection according to claim 1, characterized in that: It also includes a mounting plate (2) for fixing the box body (1), wherein the mounting plate (2) is provided with two L-shaped mounting clips (21), the two L-shaped mounting clips (21) are arranged in parallel in the horizontal direction, and the transverse sections of the two L-shaped mounting clips (21) are arranged inwardly, and the upper and lower sides of the box body (1) are both provided with mounting protrusions (113) that are engaged with the L-shaped mounting clips (21).

6. The simulated circuit breaker for detection according to claim 5, characterized in that: Countersunk holes are provided at the four corners of the mounting plate (2), and mounting screws (22) are provided in the countersunk holes.

7. The simulated circuit breaker for detection according to claim 1, characterized in that: The arc-shaped rod (6) is a quarter-circular arc rod.

8. The simulated circuit breaker for detection according to claim 1, characterized in that: The center of the arc rod (6) coincides with the axis of the detection shaft (3).

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