CN106848616A - The locking device of wire screw fastener in a kind of power equipment - Google Patents

Abstract

The invention discloses an anti-loosening device for fastening the top wire of a wire in electric equipment, which is installed in a circular cavity of a wire seat; The circular sliding plate in the circular cavity and the claws hinged on the sliding plate have more than three claws, and more than three claws are evenly distributed on the edge of the sliding plate. In actual operation, the driving rod protruding out of the wire seat makes the driving mechanism act. Under the action of the driving mechanism, more than three grippers extend out of the wire seat in a straight line to complete the opening action. After grabbing the installation end of the cable, reversely rotate the driving rod, the driving mechanism resets, and at the same time, more than three grippers close and wrap the installation end of the cable, retracting into the circular cavity of the wire seat.

Description

An anti-loosening device for fastening wire top wires in electric power equipment

technical field

The invention relates to the technical field of electric equipment, in particular to installation equipment for electric wires or cables.

Background technique

The purpose of all kinds of cable plugs, sockets, wire plugs, sockets, and power products that rely on top wires to fasten the leads on the market is to fasten the wires so that the joints of the cables or wires have strict safety and reliability. Its structure is to tighten the wire or cable on the conductive copper body or the wire seat by ordinary screws or top screws (neither cover screws). Because it has no anti-loosening device, the vibration or shaking of the equipment will cause the wire to loosen or drop, so it will bring great hidden dangers and unsafety to users, and may cause certain harm to people or equipment. Damage, in practice, this structure leads to a high failure rate, causing great harm.

Contents of the invention

The technical problem solved by the invention: how to stably fix the cable on the conductive wire base.

In order to solve the above technical problems, the present invention provides the following technical solutions: an anti-loosening device for fastening the wire top wire in electric equipment, which is installed in the circular cavity of the wire holder; the anti-loosening device is located at the wire installation port of the wire holder The anti-loosening device includes a circular sliding plate that is slidably fitted in the circular cavity, and claws hinged on the sliding plate. The number of claws is more than three, and more than three claws are evenly distributed on the edge of the sliding plate. , the tail end of each gripper is hinged to the connecting rod, and the tail end of the connecting rod is hinged to the slider, which slides and fits on the inner wall of the circular cavity; the side wall of the wire seat is pivotally connected with a driving rod, and the driving rod and the driving mechanism connected, the driving mechanism is located in the circular cavity, and the driving mechanism drives the slider and the sliding plate to move linearly along the inner wall of the circular cavity.

According to the above technical scheme, when the staff electrically connects the end of the cable to the wire seat, the driver moves the driving rod, the driving mechanism moves, the driving mechanism drives the slider and the sliding plate to move linearly along the inner wall of the circular cavity, and the sliding plate drives the claws on it. The hand moves out of the wire installation opening of the circular cavity; synchronously, the slider drives the gripper action through the connecting rod, and more than three grippers evenly distributed along the circumference of the sliding plate open, like the opening of a flower. The cable end is then inserted into the open gripper. Afterwards, the driving mechanism resets, and more than three grippers close together to wrap the end of the cable. Synchronously, the sliding plate resets into the circular cavity, and the claws grasp the end of the cable and enter the circular cavity to complete the connection between the cable and the wire. socket electrical connections.

In the above technical solution, the gripper, the connecting rod, and the slider are all conductive materials.

In the above technical solution, the gripper wraps the end of the cable, which can ensure the integrity of the end of the cable and prevent a bundle of conductive wires or conductive wires at the end of the cable from breaking.

The distance between the first hinge axis of the hinged link and the slide block and the centerline of the circular cavity is the first distance, and the distance between the second hinged axis of the hinged link and the gripper and the centerline of the circular cavity is the second distance. The distance is greater than the second distance. In the above design, the slider moves forward, the connecting rod drives the front end of the gripper to open, the slider moves backward, and the connecting rod drives the claw to close, so that the gripper grabs the ends of cables with different sizes.

All the sliders slidingly fitted on the inner wall of the circular cavity are fixed on the central disk through connecting rods, and the driving mechanism is respectively connected with the central disk and the sliding plate. The second telescopic rod described below passes through the gap between the connecting rods and is connected with the slide plate.

The driving mechanism includes a base fixed in a circular cavity, a rotating sleeve and a rotating column are pivotally connected to the base, the rotating column is located in the rotating sleeve, a rack is provided on the inner wall of the rotating sleeve, and a gear is installed on the rotating column , the centerline of the rotating column deviates from the centerline of the rotating sleeve, the rotating sleeve rotates once, and a section of the rack meshes with the gear once; the rotating column is hollow, and the first telescopic rod is screwed inside the hollow rotating column, and the first telescopic rod and The center plate is connected; the inner side wall of the rotating sleeve is provided with a friction ring, and the base is pivotally connected with a friction wheel which is in frictional contact with the inner side of the friction ring. It is connected with the sliding plate; the outer ring of the rotating sleeve is provided with a worm gear, the worm gear is meshed with a worm, and the worm is installed on the driving rod.

According to the above design, the worm screw and worm gear drive the rotating sleeve to rotate once, the friction ring rotates once, the friction ring drives the friction wheel to rotate, the friction wheel drives the second telescopic rod to expand and contract linearly, the second telescopic rod drives the sliding plate to move linearly along the circular cavity, and the sliding plate Drive the gripper into or out of the circular cavity. The above-mentioned friction ring rotates once, a section of the rack meshes with the gear once, the angle of rotation of the gear is fixed, the angle of rotation of the rotation column is fixed, the rotation column drives the first telescopic rod to move linearly, the first telescopic rod drives the center disk to move linearly, and the center disk drives All the sliders slide along the inner wall of the circular cavity, and then more than three grippers are opened or closed.

The above-mentioned friction ring can be replaced by a ring gear, and matched, the friction wheel can be replaced by a gear.

The base includes a chassis and a top plate, and the rotating sleeve and the rotating column are pivotally connected to the top plate; the chassis is provided with a first guide hole and a second guide hole, and the side walls of the first guide hole and the second guide hole are provided with There is a convex part, the side walls of the first telescopic rod and the second telescopic rod are provided with axial grooves, the first telescopic rod is inserted in the first guide hole, the convex part of the first guide hole and the axis of the first telescopic rod Cooperating with the groove, the second telescopic rod is inserted in the second guide hole, and the protrusion of the second guide hole cooperates with the axial groove of the second telescopic rod. Under the guidance of the first guide hole, the first telescopic rod moves linearly, and similarly, under the guidance of the second guide hole, the second telescopic rod moves linearly.

Description of drawings

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is a schematic view of the combined structure of the anti-loosening device and the wire holder for the fastening of the wire top wire in a kind of power equipment of the present invention;

Fig. 2 is a schematic structural view of the anti-loosening device for fastening the top wire of the wire in the electric equipment of the present invention;

FIG. 3 is a schematic structural view of the hidden drive mechanism 40 in FIG. 2;

FIG. 4 is a schematic structural view of the drive mechanism 40 in FIG. 2;

FIG. 5 is a schematic structural diagram of the hidden chassis 81 in FIG. 4 .

Explanation of symbols in the figure:

10. Wire seat;

20. Sliding plate; 21. Claw hand; 22. Connecting rod; 23. Slide block; 24. Connecting rod; 25. Center plate;

30, drive rod; 31, worm gear; 32, worm;

40. Driving mechanism;

50, friction wheel; 51, the second telescopic rod;

60, rotating sleeve; 61, a section of rack; 62, friction ring;

70, rotating column; 71, gear; 72, first telescopic rod; 720, axial groove;

81. Chassis; 82. Top plate.

detailed description

The following detailed description refers to Fig. 1 to Fig. 5.

An anti-loosening device for fastening wire top wires in electric equipment, which is installed in the circular cavity of the wire holder 10; the anti-loosening device is located at the wire installation opening of the wire holder, and the anti-loosening device includes a The inner circular sliding plate 20, the gripper 21 hinged on the sliding plate, the number of grippers is more than three, and more than three grippers are evenly distributed on the edge of the sliding plate, and the tail end of each gripper is hinged. Rod 22, the tail end of connecting rod is hinged slide block 23, and slide block slide fits on the inner wall of circular cavity; On the side wall of wire seat, drive bar 30 is pivotally connected, and drive bar is connected with drive mechanism 40, and drive mechanism is positioned at circle. In the cavity, the driving mechanism drives the slider and the sliding plate to move linearly along the inner wall of the circular cavity.

The distance between the first hinge axis of the hinged link 22 and the slide block 23 and the centerline of the circular cavity is the first distance, and the distance between the second hinged axis of the hinged link and the gripper 21 from the centerline of the circular cavity is the second distance , the first distance is greater than the second distance.

All slide blocks 23 that are slidably fitted on the inner wall of the circular cavity are fixed on the central disk 25 through connecting rods 24, and the driving mechanism 40 is connected with the central disk and the sliding plate 20 respectively.

The driving mechanism 40 includes a base fixed in the circular cavity, on which a rotating sleeve 60 and a rotating column 70 are pivotally connected, the rotating column is located in the rotating sleeve, and a section of rack 61 is arranged on the inner wall of the rotating sleeve, and the rotating column Gear 71 is installed on it, the centerline of the rotating column deviates from the centerline of the rotating sleeve, and the rotating sleeve rotates once, and a section of the rack meshes with the gear once. The rotating column 70 is hollow, and a first telescopic rod 72 is screwed inside the hollow rotating column, and the first telescopic rod is connected to the central disk 25 . The inner wall of the rotating sleeve 60 is provided with a friction ring 62, and the base is pivotally connected with a friction wheel 50 which is in frictional contact with the inner side of the friction ring. Connect with slide plate 20. The outer ring of the rotating sleeve 60 is provided with a worm wheel 31 , the worm wheel is engaged with a worm 32 , and the worm is installed on the driving rod 30 .

The base includes a chassis 81 and a top plate 82, and the rotating sleeve 60 and the rotating post 70 are pivotally connected to the top plate; the chassis provides a first guide hole and a second guide hole, and the sides of the first guide hole and the second guide hole The walls are provided with protrusions, the first telescopic rod 72 and the second telescopic rod 51 side walls are provided with axial grooves 720, the first telescopic rod is inserted in the first guide hole, and the protrusion of the first guide hole Cooperating with the axial groove of the first telescopic rod, the second telescopic rod is inserted into the second guide hole, and the convex part of the second guide hole cooperates with the axial groove of the second telescopic rod.

The base is fixed in the circular cavity of the lead base 10, the top plate 82 and the bottom plate 81 are fixedly connected by connecting pieces, and the connecting rods are connected to the edges of the top plate and the bottom plate.

In actual operation, the worker rotates the driving rod 30, drives the driving mechanism 40 through the worm 32 and the worm gear 31, and under the action of the driving mechanism, more than three grippers 21 extend out of the wire seat 10 in a straight line to complete the opening action . After grabbing the installation end of the cable, the driving rod 30 is reversely rotated, and the driving mechanism resets. When more than three grippers 21 close up and wrap the installation end of the cable, they retract into the circular cavity of the wire holder 10 .

The above content is only the preferred implementation mode of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation mode and application scope. limits.

Claims (6)

1. An anti-loosening device for fastening the wire top wire in electric equipment, which is installed in the circular cavity of the wire holder (10); it is characterized in that: the anti-loosening device is located at the wire installation opening of the wire holder, and the anti-loosening device The device includes a circular sliding plate (20) slidingly fitted in the circular cavity, and grippers (21) hinged on the sliding plate. The number of grippers is more than three, and more than three grippers are evenly distributed on the sliding plate. On the edge, the tail end of each gripper is hinged to the connecting rod (22), and the tail end of the connecting rod is hinged to the slider (23), and the slider is slidingly fitted on the inner wall of the circular cavity; A drive rod (30) is articulated on the side wall of the lead base, and the drive rod is connected with the drive mechanism (40). The drive mechanism is located in the circular cavity, and the drive mechanism drives the slider and the slide plate to move linearly along the circular cavity inner wall. 2. The anti-loosening device for fastening wire jackscrews in electric equipment according to claim 1, characterized in that the first hinge axis of the hinged connecting rod (22) and the slider (23) is at a distance from the center of the circular cavity The distance of the line is the first distance, and the distance between the hinged connecting rod and the second hinge axis of the gripper (21) is the second distance from the center line of the circular cavity, and the first distance is greater than the second distance. 3. The anti-loosening device for fastening wire jackscrews in electric equipment according to claim 1, characterized in that: all sliders (23) slidingly fitted on the inner wall of the circular cavity are fixed by connecting rods (24) On the central disc (25), the drive mechanism (40) is respectively connected with the central disc and the sliding plate (20). 4. The anti-loosening device for fastening wire top wires in electric equipment according to claim 3, characterized in that: the driving mechanism (40) includes a base fixed in the circular cavity, and the base is pivotally connected with Rotating sleeve (60) and rotating column (70), the rotating column is located in the rotating sleeve, a section of rack (61) is arranged on the inner wall of the rotating sleeve, a gear (71) is installed on the rotating column, and the centerline of the rotating column deviates from The center line of the rotating sleeve, the rotating sleeve rotates once, and a section of the rack meshes with the gear once; The rotating column (70) is hollow, and a first telescopic rod (72) is screwed inside the hollow rotating column, and the first telescopic rod is connected to the central disk (25); A friction ring (62) is provided on the inner side wall of the rotating sleeve (60), and a friction wheel (50) that is in frictional contact with the inner side of the friction ring is pivoted on the base, and a second telescopic rod is screwed to the center of the friction wheel (51), the second telescopic link is connected with the slide plate (20); The outer ring of the rotating sleeve (60) is provided with a worm wheel (31), the worm wheel is engaged with a worm (32), and the worm is installed on the driving rod (30). 5. The anti-loosening device for fastening wire top wires in electric equipment as claimed in claim 3, characterized in that: the driving mechanism (40) includes a base fixed in the circular cavity, and the base is pivotally connected with Rotating sleeve (60) and rotating column (70), the rotating column is located in the rotating sleeve, a section of rack (61) is arranged on the inner wall of the rotating sleeve, a gear (71) is installed on the rotating column, and the centerline of the rotating column deviates from The center line of the rotating sleeve, the rotating sleeve rotates once, and a section of the rack meshes with the gear once; The rotating column is hollow, and a first telescopic rod (72) is screwed inside the hollow rotating column, and the first telescopic rod is connected to the central disk (25); The inner wall of the rotating sleeve (60) is provided with a ring gear, and the base is pivotally connected with a second gear meshing with the inner side of the ring gear. The center of the second gear is screwed with a second telescopic rod, and the second telescopic rod Connect with sliding board; The outer ring of the rotating sleeve (60) is provided with a worm wheel (31), the worm wheel is engaged with a worm (32), and the worm is installed on the driving rod (30). 6. The anti-loosening device for fastening wire top wires in electric equipment according to claim 4 or 5, characterized in that: the base includes a chassis (81) and a top plate (82), and a rotating sleeve (60 ) and the rotating post (70) are pivotally connected to the top plate; The first guide hole and the second guide hole are set on the chassis, and the side walls of the first guide hole and the second guide hole are provided with convex parts, and the side walls of the first telescopic rod (72) and the second telescopic rod (51) are Axial grooves (720) are all provided, the first telescopic rod is inserted in the first guide hole, the convex part of the first guide hole cooperates with the axial groove of the first telescopic rod, and the second telescopic rod is inserted in the first guide hole. In the second guide hole, the protrusion of the second guide hole cooperates with the axial groove of the second telescopic rod.