Back-up protection switch double-point switching-on and switching-off tripping device

Abstract

A backup protection switch double-point opening and closing tripping device is characterized by comprising a frame body, a rotating block, an impact piece, a limiting rod, a limiting assembly, a force storage assembly and a connecting point assembly, one end of the frame body is provided with a first positioning shaft and a second positioning shaft, the first positioning shaft is connected with the rotating block, the upper end of the rotating block is connected with the connecting point assembly, and the second positioning shaft is connected with the impact piece. The lower end of the rotating block is connected with an impact piece, a limiting rod is arranged on the inner side of the rotating block, a force storage assembly is arranged below the limiting rod, a limiting assembly is installed on the second positioning shaft, and the limiting assembly is connected with the limiting rod in a clamped mode. The transverse displacement of the limiting assembly is limited through a positioning buckle cover, the rotating clamping block is prevented from falling off when rotating, a force storage rod is arranged below a limiting rod to increase the moving angle of the rotating block, and it is ensured that the connecting point is tripped.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of backup protection switch especially relates to backup protection switch double point split and close tripping device. BACKGROUND

[0002] Backup protection switch, also known as backup circuit breaker, is mainly used for automatically cutting off circuit under abnormal conditions such as circuit overload, short circuit, etc., to protect the safety of equipment and users.

[0003] Backup protection switch is composed of shell, incoming power end, electromagnetic mechanism, tripping mechanism, gap protection mechanism, fireproof mechanism, multiple protection mechanisms, ground wire end and circuit board, wherein when current is too large due to lightning and other conditions, gap protection mechanism is broken down to make electromagnetic mechanism electrified with electromagnetic, and the plunger in electromagnetic mechanism hits the impact piece in tripping mechanism to make the connection between tripping mechanism and hook in switch mechanism tripped, so that the switch is tripped, surge protector is disconnected, and electrical equipment is protected.

[0004] However, in the tripping mechanism used at present, the displacement of impact piece caused by the impact of plunger in electromagnetic mechanism is small, so that the connection point in tripping mechanism is not separated from the hook in switch mechanism; in addition, the assembly of impact piece and connection point in the tripping mechanism used at present is relatively complex, which causes long processing and production time and affects productivity, therefore, the backup protection switch double point split and close tripping device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems, the utility model provides a backup protection switch double point split and close tripping device, which has simple overall structure, convenient assembly, and limiting assembly setting limiting the horizontal displacement of the limiting block through positioning buckle to prevent the limiting block from falling during rotation, and force storage rod setting below the limiting rod to increase the angle of movement of the rotating block, ensuring the tripping of the connection point.

[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] The backup protection switch double point split and close tripping device is characterized by comprising a frame body, a rotating block, an impact piece, a limiting rod, a limiting assembly, a force storage assembly and a connection point assembly, the frame body is provided with a first positioning shaft and a second positioning shaft at one end, the rotating block is connected to the first positioning shaft, the upper end of the rotating block is connected to the connection point assembly, the lower end of the rotating block is connected to the impact piece, the inner side of the rotating block is provided with the limiting rod, the force storage assembly is arranged below the limiting rod, the limiting assembly is installed on the second positioning shaft, and the limiting assembly is clamped with the limiting rod,

[0008] The limiting assembly is composed of a rotating clamping block and a positioning buckle cover, a through hole is arranged at one end of the rotating clamping block and a second positioning shaft is inserted into the through hole, a protruding part is arranged on the outer wall of the other end of the rotating clamping block, a clamping slot is arranged at the front end of the second positioning shaft, and the clamping slot is connected with the positioning buckle cover through a clamping hole,

[0009] The force storage assembly is composed of a force storage rod and a pressing block, the pressing block is connected to the frame body, and the force storage rod is connected below the limiting rod,

[0010] The connecting point assembly comprises a connecting rod, a butt joint seat, a connecting piece and a connecting point, one end of the connecting rod is fixed to the rotating block, the other end of the connecting rod is provided with a connecting slot, the butt joint seat is connected to the connecting slot through buckling, the butt joint seat is connected to the fixed shaft arranged on the frame body through the connecting piece, and the upper end of the butt joint seat is provided with the connecting point.

[0011] Further, the protruding part on the rotating clamping block is clamped with the concave part arranged at the front end of the limiting rod.

[0012] Further, the force storage rod is arranged in a curved structure, so that the force storage rod is more easily deformed to store force when being pressed by the limiting rod and abutting against the pressing block on the frame body, and the force storage rod is made of plastic, so that when the rotating piece is reset, the resetting force is applied to the limiting rod, so that the rotating block can rotate to a larger angle.

[0013] Specifically, the frame body is provided with a moving slot, and the moving slot is matched with the displacement path of the impact piece during downward rotation.

[0014] Specifically, the lower end of the frame body is provided with two electrically connected pieces, and each electrically connected piece is connected with a ground wire.

[0015] The utility model discloses beneficial effect:

[0016] The tripping device is assembled, the rotating block is installed on the first positioning shaft of the frame body, the butt joint seat in the connecting point assembly is clamped with the connecting rod arranged on the rotating block, the connecting piece in the connecting point assembly is connected to the fixed shaft on the frame body, then the limiting assembly is connected to the second positioning shaft, and the assembly of the whole tripping device is completed, and the whole is simple and convenient.

[0017] After the rotating clamping block in the limiting assembly is installed on the second positioning shaft, the positioning buckle cover is clamped, and the rotating clamping block is prevented from falling off the second positioning shaft when displacement occurs.

[0018] The utility model discloses a reserve protection switch double point split and combine trip device, which comprises a frame body, a movable groove is arranged on the frame body, a fixed shaft is arranged on the movable groove, a rotating block is arranged on the fixed shaft, a striking piece is arranged on the rotating block, a limiting rod is arranged on the striking piece, a rotating clamping block is arranged on the limiting rod, a positioning buckle cover is arranged on the rotating clamping block, a force storage rod is arranged below the limiting rod clamped with the limiting assembly, an extrusion block is arranged on the force storage rod, a first positioning shaft is arranged on the frame body, a second positioning shaft is arranged on the frame body, an electricity receiving piece is arranged on the frame body, a connecting rod is arranged on the electricity receiving piece, a connecting groove is arranged on the connecting rod, a butt joint seat is arranged on the connecting rod, a connecting piece is arranged on the butt joint seat, and a connecting point is arranged on the connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front side schematic diagram of the whole structure of the reserve protection switch double point split and combine trip device of the utility model.

[0020] Figure 2 It is the rear side schematic diagram of the whole structure of the reserve protection switch double point split and combine trip device of the utility model.

[0021] Figure 3 It is the whole structure exploded view schematic diagram of the reserve protection switch double point split and combine trip device of the utility model, and the frame body is arranged on the movable groove, and the fixed shaft is arranged on the movable groove, and the rotating block is arranged on the fixed shaft, and the striking piece is arranged on the rotating block, and the limiting rod is arranged on the striking piece, and the rotating clamping block is arranged on the limiting rod, and the positioning buckle cover is arranged on the rotating clamping block, and the force storage rod is arranged below the limiting rod clamped with the limiting assembly, and the extrusion block is arranged on the force storage rod, and the first positioning shaft is arranged on the frame body, and the second positioning shaft is arranged on the frame body, and the electricity receiving piece is arranged on the frame body, and the connecting rod is arranged on the electricity receiving piece, and the connecting groove is arranged on the connecting rod, and the butt joint seat is arranged on the connecting rod, and the connecting piece is arranged on the butt joint seat, and the connecting point is arranged on the connecting piece. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be described below in conjunction with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0023] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection", "connection" should be understood in broad sense, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be mechanical connection, also can be electrical connection, it can be direct connection, also can be indirect connection through intermediate medium, it can be the communication inside two elements, for ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Embodiment 1

[0026] As shown in the figure, the first positioning shaft 71 and the second positioning shaft 72 are arranged at one end of the frame body 1, the rotating block 2 is connected to the first positioning shaft 71, the lower end of the rotating block 2 is connected to the impact piece 3, and the moving groove 11 is arranged on the frame body 1, which is matched with the path of displacement of the impact piece 3 during downward rotation,

[0027] The inner side of the rotating block 2 is provided with the limiting rod 4, the recessed lower part arranged at the front end of the limiting rod 4 is clamped with the protruding part 511 arranged on the rotating clamping block 51 in the limiting assembly, the through hole arranged at one end of the rotating clamping block 51 is inserted on the second positioning shaft 72, and the clamping groove arranged at the front end of the second positioning shaft 72 is connected with the positioning buckle 52 through the bayonet connection, so as to avoid that the rotating clamping block 51 is easily fallen off from the second positioning shaft 72 when displacement occurs,

[0028] The force storage assembly is arranged below the limiting rod 4, the force storage rod 61 in the force storage assembly is connected below the limiting rod 4, and the force storage rod 61 is arranged in a curved structure, and the extrusion block 62 is arranged on the frame body 1, and the extrusion block 62 is arranged in an arc structure,

[0029] The connecting rod 91 is fixedly connected to the rotating block 2, the other end of the connecting rod 91 is connected with the docking seat 92 at the connecting groove 911, the docking seat 92 is connected with the fixed shaft 12 arranged on the frame body 1 through the connecting piece 93, and the connecting point 94 is arranged at the upper end of the docking seat 92, wherein the connecting point 94 is connected with the hook of the switch mechanism in the backup protection switch, since the connecting point 94 is connected with the switch mechanism, it is an existing technical means, so the switch mechanism is not described and shown in detail, and two power connection pieces 8 are arranged at the lower end of the frame body 1, and each power connection piece 8 is used for connecting the ground wire.

[0030] Embodiment 2

[0031] The utility model is installed in the shell of the backup protection switch in application, and the initial condition after being installed to the backup protection switch, as Figure 2As shown, the limiting rod 4 is clamped with the rotating clamping block 51 in the limiting assembly, and the position of the limiting rod 4 at this time, that is, the position of the rotating block 2 is limited by the limiting clamping block 51,

[0032] When the current is too large, the electromagnetic mechanism in the backup protection switch is started to make the ejector pin quickly extend, the ejector pin will hit the impact piece 3 in the utility model, and the impact piece 3 is stopped against the impact piece 3 to drive the rotating block 2 to rotate downward, the impact piece 3 moves towards the direction of the moving groove 11 arranged on the frame 1, the rotating block 2 drives the limiting rod 4 to move towards the direction of the extrusion block 62 on the frame 1, the limiting rod 4 compresses the force storage rod 61 between the limiting rod 4 and the extrusion block 62 to the extrusion block 62, the force storage rod 62 in the curved structure is deformed to store force under the extrusion of the limiting rod 4 and the extrusion block 62, and because the limiting rod 4 is displaced, the rotating clamping block 51 is not limited by the limiting rod 4, and under the action of gravity, the rotating clamping block 51 will rotate from the horizontal direction to the vertical direction,

[0033] When the ejector pin in the electromagnetic mechanism quickly shrinks, the rotating block 2 is not subjected to the downward rotating force, at this time, the deformed force storage rod 61 will quickly reset, the position where the force storage rod 61 contacts the limiting rod 4 will reset the force to the limiting rod 4, that is, to the rotating block 2, so that the rotating block 2 has a larger rotating displacement angle, and the connecting rod 91 is simultaneously driven, and the connecting point 94 has a larger displacement angle, so that the connecting point 94 is ensured to be tripped.

[0034] It should be noted that the electromagnetic mechanism is a common existing device in the backup protection switch, so the specific structure thereof is not described in detail in the present application.

[0035] When the force storage rod is extruded by the limiting rod to abut against the pressing block on the frame, the force storage rod is more easily deformed to store force, and the force storage rod is made of plastic, after extrusion and deformation, when the rotating piece resets and moves, the resetting force is applied to the limiting rod, that is, the rotating block has a larger rotating angle.

[0036] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. The components mentioned in the utility model are common technologies in the prior art, which should be understood by those skilled in the art. The utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A backup protective switch double point opening and closing trip device, characterized in that Including frame, rotating block, impact piece, limiting rod, limiting assembly, force storage assembly and connecting point assembly, one end of the frame is provided with first positioning shaft and second positioning shaft, the first positioning shaft is connected with rotating block, the upper end of the rotating block is connected with connecting point assembly, the lower end of the rotating block is connected with impact piece, the inner side of the rotating block is provided with limiting rod, the lower side of the limiting rod is provided with force storage assembly, the second positioning shaft is installed with limiting assembly, the limiting assembly is connected with limiting rod.

2. The backup protective switching two-point opening and closing trip device according to claim 1, characterized in that The limiting assembly is composed of rotating block and positioning buckle, the second positioning shaft is inserted into the through hole at one end of the rotating block, the other end of the rotating block is provided with convex part on the outer wall, the second positioning shaft is connected with positioning buckle through the clamping groove at the front end of the second positioning shaft.

3. The backup protective switching two-point opening and closing trip unit according to claim 1, characterized in that The force storage assembly is composed of force storage rod and extrusion block, the extrusion block is connected with the frame, the force storage rod is connected below the limiting rod.

4. The backup protective switching two-point opening and closing trip unit according to claim 3, characterized in that The force storage rod is provided in curved structure.

5. The backup protective switching two-point opening and closing trip unit according to claim 1, characterized in that The connecting point assembly includes connecting rod, docking seat, connecting piece and connecting point, one end of the connecting rod is fixed on the rotating block, the other end of the connecting rod is provided with connecting groove, the docking seat is connected with the connecting piece, the docking seat is connected with the fixed shaft on the frame through the connecting piece, and the upper end of the docking seat is provided with connecting point.

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