High-voltage switch connection open circuit protection device

Abstract

The invention provides a high-voltage switch connection open-circuit protection device which comprises a shell, pressing buckles are hinged to the positions, close to the back side, of the upper end and the lower end of the shell, each pressing buckle is composed of a pressing plate and a buckle head, the pressing plates and the buckle heads are connected in a right-angle mode, and the pressing plates are hinged to the upper end face and the lower end face of the shell. The torsion spring is arranged at the hinged position and acts on the pressing plate so that the tail end of the buckle head connected to the pressing plate can keep the trend of moving towards the back face of the shell, the inclined acting force on the rail back side structure is matched with the shell structure to form the three-direction centripetal clamping effect on the rail structure, the movement allowance after installation is avoided, and the service life of the buckle head is prolonged. And the working stability of the circuit breaker in an unstable environment is ensured, and the circuit breaker has a good development prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of circuit breaker, in particular to a high-voltage switch connection circuit protection device. BACKGROUND

[0002] The circuit breaker refers to the switch device capable of closing, carrying and opening the current under normal loop conditions and capable of closing, carrying and opening the current under abnormal loop conditions within a specified time. The circuit breaker can be used to distribute electric energy and protect the power supply line and the like, and can automatically cut off the circuit when serious overload or short circuit and under-voltage fault occurs, and the function is equivalent to the combination of the fuse type switch and the over-voltage and under-voltage relay.

[0003] The installation of the circuit breaker usually relies on the back buckle structure to link with the track of the junction box. In order to facilitate the installation of the circuit breaker, the buckle structure of the circuit breaker often retains some installation allowance to facilitate the buckling with the track, which results in that the connection between the circuit breaker and the track after installation has a movement allowance. In the usual environment, the setting of the movement allowance can be used for the adjustment of the position of the circuit breaker on the track, but in some special environments, such as a moving car, a ship or in the vicinity of some mechanical equipment which can generate large vibration, the existence of the movement allowance means that the fixation is not in place. When the electric wire connected with the circuit breaker contacts with the surrounding structure, the long-time vibration friction will cause the wear of the outer rubber of the electric wire, and finally cause the danger of short circuit and leakage.

[0004] Therefore, a new high-voltage switch connection circuit protection device is needed to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a high-voltage switch connection circuit protection device.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] A high-voltage switch connection circuit protection device comprises a shell, a pressure buckle is hinged at the position close to the back side of the upper and lower ends of the shell, the pressure buckle is composed of a pressure plate and a buckle head, the pressure plate and the buckle head are connected at a right angle, the pressure plate is hinged with the upper and lower end faces of the shell, and a torsional spring is arranged at the hinged position to act on the pressure plate to keep the end of the buckle head connected with the pressure plate moving towards the back of the shell.

[0008] As a further scheme of the present application, a protective cover is fixed by buckling on the upper and lower sides of the shell to cover the side close to the back of the shell of the hinged position of the pressure buckle.

[0009] As a further scheme of the present application, the front end of the pressure plate is a curved surface structure which is raised, and a convex anti-slip pattern is arranged on the curved surface.

[0010] As a further scheme of the present application, the end of the buckle head is a hook-shaped structure which is arranged obliquely.

[0011] As a further scheme of the present application: vertical slide rails are arranged on the upper and lower ends of the back side of the shell, a buckle is arranged to slide in the slide rail, and one end of the buckle protrudes out of the slide rail and is hingedly connected to the pressing plate of the pressing buckle.

[0012] As a further scheme of the present application: the front end of the buckle is a slope structure away from the center side of the shell.

[0013] As a further scheme of the present application: a top sheet is hingedly connected between the buckles on the upper and lower sides through two connecting pieces, and the top sheet is slidingly connected to the guide column arranged vertically on the back of the shell.

[0014] As a further scheme of the present application: the connecting piece between the buckle and the top sheet is obliquely arranged, and the distance from the connecting end of the top sheet to the back of the shell is farther.

[0015] As a further scheme of the present application: the step surface of the top sheet is isosceles trapezoidal, and one side of the long side is arranged to fit the back of the shell.

[0016] As a further scheme of the present application: the connecting piece is a curved elastic spring piece.

[0017] Beneficial effects

[0018] 1. The upper and lower ends of the shell are hingedly connected to a pressing buckle close to the back side, the pressing buckle is composed of a pressing plate and a buckle head, the pressing plate and the buckle head are connected at a right angle, the pressing plate is hingedly connected to the upper and lower end surfaces of the shell, a torsional spring is arranged at the hinge to act on the pressing plate to keep the end of the buckle head connected to the pressing plate moving towards the back of the shell, the force acting on the back side structure of the track is matched through the oblique track structure, the three-direction centripetal clamping action of the track structure is formed by the shell structure, the activity allowance after installation is avoided, and the working stability of the circuit breaker in an unstable environment is ensured.

[0019] 2. Vertical slide rails are arranged on the upper and lower ends of the back side of the shell, a buckle is arranged to slide in the slide rail, one end of the buckle protrudes out of the slide rail and is hingedly connected to the pressing plate of the pressing buckle, the buckles on the upper and lower sides clamp the edges of the track through the buckles linked with the pressing buckle, the vertical movement of the circuit breaker on the track is further limited, the stability of vertical fixation is improved, a top sheet is hingedly connected between the buckles on the upper and lower sides through two connecting pieces, the top sheet is slidingly connected to the guide column arranged vertically on the back of the shell, when the upper and lower buckles move towards the center to clamp the edges of the track from the upper and lower sides, the central top sheet will also drive the guide column to slide and fit the groove structure in the track from the inside to limit and resist the track structure, and the stability after fixation is further improved.

[0020] 3. The connecting piece is a curved elastic spring piece, so that the bending of the elastic spring piece is used to play an energy absorption effect, to correct the size error that may exist between different tracks, to avoid the structure of the buckle and the top piece of the linkage being in conflict due to the error, and to prevent deviation and looseness. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0022] Figure 2 It is a schematic diagram of the internal structure of the protective cover of the present application.

[0023] Figure 3 It is a schematic diagram of the transmission of the present application.

[0024] Figure 4 It is a schematic diagram of the installation of the pressing buckle and the buckle of the present application.

[0025] Figure 5 It is an explosion schematic diagram of the connection of the pressing buckle, the buckle and the top piece of the present application.

[0026] Figure 6 It is a schematic diagram of the structure of the pressing buckle of the present application.

[0027] Figure 7 It is a schematic diagram of the connection of the buckle and the top piece of the present application.

[0028] Figures 1-7 M: 1, housing; 2, protective cover; 3, pressing buckle; 31, pressing plate; 32, buckle head; 4, torsion spring; 5, buckle; 6, pin; 7, spring piece; 8, top piece; 9, guide column; 10, sliding rail. DETAILED DESCRIPTION

[0029] The specific technical solutions of the present application will be described below in conjunction with the drawings in the specification of the present application. Figures 1-7 , the specific technical solutions of the present application will be described below in conjunction with the drawings in the specification of the present application.

[0030] Please refer to Figures 1-7 , Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application. Figure 2 It is a schematic diagram of the internal structure of the protective cover of the present application. Figure 3 It is a schematic diagram of the transmission of the present application. Figure 4 It is a schematic diagram of the installation of the pressing buckle and the buckle of the present application. Figure 5 It is an explosion schematic diagram of the connection of the pressing buckle, the buckle and the top piece of the present application. Figure 6 It is a schematic diagram of the structure of the pressing buckle of the present application. Figure 7 It is a schematic diagram of the connection of the buckle and the top piece of the present application.

[0031] The high-voltage switch connecting circuit protection device provided by the embodiment comprises a shell 1, a pressure buckle 3 is hinged to the upper and lower ends of the shell 1 close to the back side, the pressure buckle 3 is composed of a pressure plate 31 and a buckle head 32, the pressure plate 31 is connected with the buckle head 32 at a right angle, the pressure plate 31 is hinged to the upper and lower end faces of the shell 1, and a torsional spring 4 is arranged at the hinged position and acts on the pressure plate 31 to make the end of the buckle head 32 connected to the pressure plate 31 keep a tendency of moving towards the back of the shell 1;

[0032] Through the oblique force acting on the back side structure of the track, the shell 1 structure cooperates with the track structure to form a three-way centripetal clamping action, so that the activity allowance after installation is avoided, and the working stability of the circuit breaker in an unstable environment is ensured.

[0033] The upper and lower sides of the shell 1 are fixed with a cover 2 of the buckle 5, and the cover 2 covers the hinged position of the pressure buckle 3 close to the back side of the shell 1. Thus, the cover 2 plays a role in covering and preventing dust from accumulating at the hinged position to affect the activity.

[0034] The front end of the pressure plate 31 is a raised arc surface structure, and a raised anti-skid pattern is arranged on the arc surface. The raised arc surface part provides a space for the anti-skid pattern part to be pressed down, so as to facilitate the upward movement of the buckle head 32 part at the other end of the hinged position.

[0035] The end of the buckle head 32 is a hook-shaped structure arranged obliquely, so as to better contact the inclined surface on the back of the track. Through the resistance to the upper and lower inclined surfaces, the track is stably connected, and vertical sliding caused by direct contact is avoided.

[0036] The upper and lower ends of the back side of the shell 1 are provided with vertical slide rails 10, the slide rails 10 are slidably provided with buckles 5, and a part of the buckle 5 protrudes out of the slide rail 10 and is hinged to the pressure plate 31 of the pressure buckle 3 for transmission.

[0037] The buckle 5 connected with the pressure buckle 3 clamps the edges of the track from the upper and lower sides, further limits the vertical movement of the circuit breaker on the track, and improves the stability of vertical fixation.

[0038] Specifically, the front end of the buckle 5 is an inclined surface structure away from the center side of the shell 1, so as to guide the upper and lower edges of the track and make the track move relative to the shell 1 to the side of the buckle head 32, thereby forming clamping of the track structure by the buckle 5 and the buckle head 32.

[0039] Specifically, the top sheet 8 is hinged between the two buckles 5 on the upper and lower sides through two connecting pieces, and the top sheet 8 is slidably connected to the guide column 9 vertically arranged on the back of the shell 1.

[0040] Through the setting of the top sheet 8 linked with the buckle 5, when the upper and lower buckles 5 move to the middle to clamp the track edges from the upper and lower sides, the central top sheet 8 will also drive the guide column 9 to slide and fit the inner groove structure of the track, and further improve the stability after fixing.

[0041] Further, the connecting piece between the buckle 5 and the top sheet 8 is inclined, and the distance from the connecting end of the top sheet 8 to the back of the shell 1 is farther. By forming an initial angle through the inclination, the subsequent force of the buckle 5 on the top sheet 8 is guided, so that the vertical sliding of the buckle 5 is more smooth and is switched to the horizontal sliding of the top sheet 8.

[0042] Further, the top sheet 8 is an isosceles trapezoid, and one side of the long side is arranged to fit the back of the shell 1, so as to adapt to the trapezoidal groove structure inside the track and achieve better fixing effect.

[0043] Further, the connecting piece is a curved elastic spring sheet 7, so as to utilize the bending of the elastic spring sheet 7 to absorb energy and correct the possible size error between different tracks, so as to avoid the structure of the linked buckle 5 and the top sheet 8 from being in contact due to the error, and prevent the other structure from being fixed incompletely and causing deviation and looseness.

[0044] In the implementation of the technical solutions described in the embodiment, when installing, the pressing plate 31 of the pressing buckle 3 on the upper and lower sides of the shell 1 is pressed down, the pressing plate 31 rotates along the hinge of the shell 1, drives the end buckle head 32 structure to move out, at the same time drives the buckle 5 to move along the slide rail 10 and enter the slide rail 10, and the top sheet 8 is driven by the spring sheet 7 to slide along the guide column 9 and fit the back of the shell 1. Then, the back of the circuit breaker is aligned with the electrical cabinet track and is clamped in, so that the track is clamped between the upper and lower slide rails 10 of the shell 1. The pressing plate 31 is reset under the action of the torsional spring 4, the buckle head 32, the buckle 5 and the top sheet 8 are respectively fixed to the track from the outside, the edge and the inside, and the installation of the circuit breaker is completed.

Claims

1. A high-voltage switch connection circuit breaker protection device, characterized in that, include: The shell (1) has snap fasteners (3) hinged at the upper and lower ends near the back side; The snap fastener (3) consists of a pressure plate (31) and a buckle (32). The pressure plate (31) and the buckle (32) are connected at a right angle. The pressure plate (31) is hinged to the upper and lower end faces of the housing (1). A torsion spring (4) is provided at the hinge point to act on the pressure plate (31) so that the end of the buckle (32) connected to the pressure plate (31) tends to move towards the back of the housing (1).

2. The high-voltage switch connection circuit breaker protection device according to claim 1, characterized in that: The front end of the pressure plate (31) is a curved surface structure with raised anti-slip textures on the curved surface.

3. The high-voltage switch connection circuit breaker protection device according to claim 1, characterized in that: The end of the buckle (32) is a hook-shaped structure set at an angle.

4. A high-voltage switch connection circuit breaker protection device according to claim 1, characterized in that: The back side of the housing (1) is provided with vertical slide rails (10) at the upper and lower ends. A buckle (5) is slidably provided inside the slide rail (10). One end of the buckle (5) protrudes outside the slide rail (10) and is hinged to the pressure plate (31) of the buckle (3) for transmission.

5. A high-voltage switch connection circuit breaker protection device according to claim 4, characterized in that: The front end of the buckle (5) is a sloping structure facing away from the center of the housing (1).

6. A high-voltage switch connection circuit breaker protection device according to claim 4, characterized in that: The top piece (8) is hinged between the upper and lower side buckles (5) through two connecting pieces, and the top piece (8) is slidably connected to the guide post (9) vertically set on the back of the housing (1).

7. A high-voltage switch connection circuit breaker protection device according to claim 6, characterized in that: The connector between the buckle (5) and the top piece (8) is angled, and the distance from the connection end of the top piece (8) to the back of the housing (1) is greater.

8. A high-voltage switch connection circuit breaker protection device according to claim 6, characterized in that: The top plate (8) has an isosceles trapezoidal stepped surface, with its long side attached to the back of the shell (1).

9. A high-voltage switch connection circuit breaker protection device according to claim 6, characterized in that: The connecting piece is a bent elastic spring (7).

10. A high-voltage switch connection circuit breaker protection device according to claim 1, characterized in that: The upper and lower sides of the housing (1) are both secured with covers (2) by snap-fit ​​(5) to cover the hinge of the snap-fit ​​(3) on the back side of the housing (1).

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