High-voltage fuse protector

Abstract

The utility model is applicable to the technical field of fuse protection, and provides a high-voltage fuse protection device, which is provided with a containing pipe, an annular balloon, a spring, a bearing disc, an air bag and glands, when a cover plate is closed, the glands arranged on the cover plate can be inserted into the containing pipe and push a plurality of fuses placed in the containing pipe to move downwards, so that the fuses can be prevented from falling off, and the safety of the fuses is improved. When the fuse moves downwards, the air bag below the bearing disc can be compressed, air in the air bag enters the annular air ring through the air pipe, so that the annular air ring is expanded, the fuse is fixed in the containing pipe, and in the transportation process of the protection box, the phenomenon that the fuse collides with the inner wall of the containing pipe back and forth can be avoided; the protection of the device on the fuse is improved; and due to the arrangement of a screw rod, the compression depth of an air bag can be adjusted, it is guaranteed that the fuse is fixed through an annular air ring, the containing pipe can adapt to fixing of fuses of different lengths, and the practicability of the device is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a high -voltage fuse protection device. BACKGROUND

[0002] High -voltage fuse is a kind of protection electrical apparatus, is used to protect electrical equipment from the damage of overload and short-circuit current.The existing high -voltage fuse, because the problem of material itself, in the process of transportation, breakage condition can be easily appeared, needs to use protection device to carry out loading transportation.

[0003] Through the retrieval, CN 219873392 U, a kind of high -voltage fuse protection device, by setting clamping mechanism, high -voltage fuse is placed in the protection hole inside the protection box, then rotates cover plate, so that cover plate can cover the top of protection box, before cover plate covers the top of protection box, it needs to press slider, slider moves in sliding slot can make the clamping head lower extrusion second spring shrink, so that cover plate can smoothly rotate and cover the top of protection box, then release slider, second spring naturally pops up, so that the clamping head can be with the mouth of the top of cover plate clamped.

[0004] However, the above application still has certain defects: the above application emphasizes that fuse is placed in protection hole for protection, since the diameter of protection hole is fixed, therefore the device can only adapt to fuse of specified diameter, when the diameter of fuse and the diameter of protection hole are greatly different, fuse will collide with the inner wall of protection hole back and forth, and can cause the damage of fuse, for this, it is necessary to design corresponding technical scheme to solve the existing technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high -voltage fuse protection device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of high -voltage fuse protection device, including protection box and cover plate, cover plate side is connected with protection box by hinge, and the other side is detachably connected by opening and closing module, the protection box is fixedly provided with layer board, multiple holding tubes are arranged at equal intervals on the layer board, the inner wall of holding tube is fixedly provided with multiple annular air rings, and the bottom surface of holding tube is movably provided with bearing disc by spring, the bottom surface of bearing disc is provided with air bag, air bag is in the form of bellows, and is connected with annular air ring by air pipe, the cover plate is also provided with gland on the position corresponding to multiple holding tubes.

[0008] As a further scheme of the utility model: the gland and bearing disc are all installed with latex pad.

[0009] As a further scheme of the utility model: the top end of the containing pipe is further provided with a flange plate, and the flange plate is detachably installed on the layer board through screws.

[0010] As a further scheme of the utility model: a plurality of screw rods are further threadedly installed on the cover plate, a gland is installed on one end of the screw rod, and a knob is installed on the other end of the screw rod.

[0011] As a further scheme of the utility model: a jacking mechanism is further arranged below the plurality of containing pipes in the protection box, the jacking mechanism comprises a movable plate movably arranged in the protection box, a plurality of jacking rods fixedly installed on the movable plate, and a driving assembly for driving the movable plate to move up and down, the plurality of jacking rods are one-to-one correspondingly arranged at the bottom of the containing pipe, and a through hole for the jacking rod to pass through is formed in the bottom surface of the containing pipe and the bearing disc.

[0012] As a further scheme of the utility model: the driving assembly comprises a bidirectional screw rod rotatably arranged in the protection box and a pair of push-pull rods symmetrically installed on the bottom surface of the movable plate, screw sleeves are symmetrically installed on the two threaded portions of the bidirectional screw rod, one end of the bidirectional screw rod passing through the protection box is provided with a hand wheel, and one end of the push-pull rod is hingedly installed on the bottom surface of the movable plate, and the other end of the push-pull rod is hingedly connected with the screw sleeve.

[0013] As a further scheme of the utility model: the driving assembly further comprises a guide unit symmetrically arranged in the protection box, the guide unit comprises a pair of support rods fixedly arranged on the inner wall of the protection box and a guide rod fixedly arranged between the two support rods, and the movable plate is movably installed on the guide rod.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a containing pipe, an annular air ring, a spring, a bearing disc, an air bag and a gland are arranged, when the cover plate is closed, a plurality of glands arranged on the cover plate can be inserted into the containing pipe, and the plurality of fuses placed in the containing pipe are pushed to move downwards, when the fuse moves downwards, the air bag below the bearing disc can be compressed, the air in the air bag enters the annular air ring through the air pipe, the annular air ring expands, and the fuse is fixed in the containing pipe, during the transportation of the protection box, the phenomenon that the fuse collides with the inner wall of the containing pipe back and forth can be avoided, and the protection of the device on the fuse is improved.

[0016] 2. In the utility model, the screw rod is arranged, after the cover plate is closed, the depth of the gland inserted into the containing pipe can be controlled by rotating the knob on the cover plate, so that the air bag can be compressed to a specified depth, and the annular air ring fixes the fuse, so that the containing pipe can adapt to the fixation of fuses of different lengths, and the practicability of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a high-voltage fuse protection device;

[0018] Figure 2 It is a schematic diagram of the internal structure of a high-voltage fuse protection device;

[0019] Figure 3 It is an enlarged view of the holding tube of a high-voltage fuse protection device;

[0020] Figure 4 It is Figure 3 a sectional view;

[0021] Figure 5 It is Figure 4 an enlarged view of A in

[0022] In the figure: 1, protection box; 2, cover plate; 3, layer plate; 4, holding tube; 5, annular air ring; 6, spring; 7, bearing disc; 8, air bag; 9, air pipe; 10, gland; 11, flange; 12, screw rod; 13, knob; 14, movable plate; 15, top rod; 16, through hole; 17, bidirectional screw; 18, screw sleeve; 19, push-pull rod; 20, hand wheel; 21, support rod; 22, guide rod. DETAILED DESCRIPTION

[0023] The technical solution of the patent will be further described in detail in combination with specific embodiments.

[0024] Example 1

[0025] Please refer to Figures 1-5 , a high-voltage fuse protection device, comprising a protection box 1 and a cover plate 2, one side of the cover plate 2 is connected with the protection box 1 through a hinge, and the other side is detachably connected through an opening and closing module, a layer plate 3 is fixedly arranged in the protection box 1, a plurality of holding tubes 4 are arranged on the layer plate 3 at equal intervals, a plurality of annular air rings 5 are fixedly arranged on the inner wall of the holding tube 4, and a bearing disc 7 is movably arranged on the bottom surface of the holding tube 4 through a spring 6, an air bag 8 is arranged on the bottom surface of the bearing disc 7, the air bag 8 is in the form of a corrugated tube, and is connected with the annular air ring 5 through an air pipe 9, a gland 10 is further arranged on the cover plate 2 corresponding to the positions of the plurality of holding tubes 4, and a latex pad is installed on the gland 10 and the bearing disc 7, by arranging the holding tube 4, the annular air ring 5, the spring 6, the bearing disc 7, the air bag 8 and the gland 10, when the cover plate 2 is closed, the plurality of glands 10 arranged on the cover plate 2 can be inserted into the holding tube 4, and push the plurality of fuses placed in the holding tube 4 to move downward, when the fuse moves downward, the air bag 8 below the bearing disc 7 can be compressed, the air in the air bag 8 enters the annular air ring 5 through the air pipe 9, so that the annular air ring 5 expands, and the fuse is fixed in the holding tube 4, during the transportation of the protection box 1, the phenomenon of the fuse colliding with the inner wall of the holding tube 4 back and forth can be avoided, and the protection of the device to the fuse is improved.

[0026] The top end of the containing tube 4 is further fixedly provided with a flange plate 11, which is detachably installed on the layer plate 3 by screws. In this way, after the air bag 8 or the annular air ring 5 in the containing tube 4 is damaged, the entire containing tube 4 can be detached from the protection box 1, facilitating replacement of the damaged containing tube 4.

[0027] In addition, a plurality of screw rods 12 are threadedly installed on the cover plate 2, the pressing cover 10 is installed at one end of the screw rod 12, and a knob 13 is installed at the other end of the screw rod 12. After the cover plate 2 is closed, the depth of insertion of the pressing cover 10 into the containing tube 4 can be controlled by rotating the knob 13 on the cover plate 2, so as to ensure that the air bag 8 can be compressed to a specified depth and the annular air ring 5 can fix the fuse, so that the containing tube 4 can adapt to fixing of fuses of different lengths, further improving the practicality of the device.

[0028] Embodiment 2

[0029] This embodiment is improved on the basis of Embodiment 1, and specifically:

[0030] Please refer to Figure 2 After the cover plate 2 is opened, in order to facilitate the ejection of the plurality of fuses from the containing tube 4, a lifting mechanism is further arranged below the plurality of containing tubes 4 in the protection box 1 in this embodiment. The lifting mechanism comprises a movable plate 14 movably arranged in the protection box 1, a plurality of jacks 15 fixedly installed on the movable plate 14, and a driving assembly driving the movable plate 14 to move up and down. The plurality of jacks 15 are correspondingly arranged at the bottom of the containing tube 4. The bottom surface of the containing tube 4 and the bearing disc 7 are both provided with through holes 16 for the jacks 15 to pass through.

[0031] Specifically, the driving assembly comprises a bidirectional screw rod 17 rotatably arranged in the protection box 1 and a pair of push-pull rods 19 symmetrically installed on the bottom surface of the movable plate 14. Screw sleeves 18 are symmetrically installed on the two threaded portions of the bidirectional screw rod 17, and one end of the bidirectional screw rod 17 passing out of the protection box 1 is provided with a hand wheel 20. One end of the push-pull rod 19 is hingedly installed on the bottom surface of the movable plate 14, and the other end is hingedly connected with the screw sleeve 18.

[0032] In addition, the driving assembly further comprises a guide unit symmetrically arranged in the protection box 1. The guide unit comprises a pair of support rods 21 fixedly arranged on the inner wall of the protection box 1 and a guide rod 22 fixedly arranged between the two support rods 21. The movable plate is movably installed on the guide rod 22. The guide unit further improves the stability of the up-and-down movement of the movable plate 14.

[0033] Specifically, when the fuses in the multiple containing tubes 4 need to be taken out, only need to rotate the hand wheel 20 at the side of the protection box 1, the hand wheel 20 drives the bidirectional screw rod 17 to rotate, and makes the two screw sleeves 18 relatively close, under the action of the push-pull rod 19, the movable plate 14 can move upward, the movable plate 14 pushes the multiple top rods 15 to insert into the containing tubes 4, and pushes the multiple fuses to be pushed out upward and protrude out of the containing tubes 4, so that the fuses are convenient to be taken out, on the contrary, reversely rotating the hand wheel 20, the movable plate 14 can be driven to move downward, and the multiple top rods 15 can be reset.

[0034] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. The presently disclosed application thus considers embodiments to be only exemplary and not restrictive, and the scope of the application is only defined by the appended claims and not by the description given above, and it is therefore intended to embrace all variations falling within the meaning and equivalency range of the elements of the appended claims.

[0035] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A high-voltage fuse protection device comprising a protection box (1) and a cover plate (2), one side of the cover plate (2) being connected to the protection box (1) by means of a hinge, the other side being detachably connected by means of a snap-on module, characterized in that The protection box (1) is internally fixed with a layer plate (3), a plurality of holding tubes (4) are equidistantly arranged on the layer plate (3), a plurality of annular air rings (5) are fixedly arranged on the inner wall of the holding tube (4), a bearing disc (7) is movably arranged on the bottom surface of the holding tube (4) through a spring (6), an air bag (8) is arranged on the bottom surface of the bearing disc (7), the air bag (8) is in the form of a bellows, and the air bag (8) is connected with the annular air ring (5) through an air pipe (9), and a plurality of gland nuts (10) are arranged on the cover plate (2) corresponding to the positions of the plurality of holding tubes (4).

2. The high-voltage fuse protection device according to claim 1, characterized in that The gland nuts (10) and the bearing discs (7) are both provided with latex pads.

3. The high-voltage fuse protection device according to claim 1, characterized in that The top end of the holding tube (4) is also fixedly provided with a flange plate (11), and the flange plate (11) is detachably installed on the layer plate (3) through screws.

4. The high-voltage fuse protection device according to claim 1, characterized in that A plurality of screw rods (12) are threadedly installed on the cover plate (2), the gland nuts (10) are installed at one end of the screw rods (12), and knobs (13) are installed at the other end of the screw rods (12).

5. The high voltage fuse protection device of claim 1, wherein, A jacking mechanism is further arranged below the plurality of holding tubes (4) in the protection box (1), the jacking mechanism comprises a movable plate (14) movably arranged in the protection box (1), a plurality of jack rods (15) fixedly installed on the movable plate (14), and a driving assembly driving the movable plate (14) to move up and down, the plurality of jack rods (15) are one-to-one correspondingly arranged at the bottom of the holding tube (4), and the bottom surface of the holding tube (4) and the bearing disc (7) are both provided with through holes (16) for the jack rods (15) to pass through.

6. The high-voltage fuse protection device according to claim 5, characterized in that The driving assembly comprises a bidirectional screw rod (17) rotatably arranged in the protection box (1) and a pair of push-pull rods (19) symmetrically installed on the bottom surface of the movable plate (14), screw sleeves (18) are symmetrically installed on the two threaded portions of the bidirectional screw rod (17), one end of the bidirectional screw rod (17) passing through the protection box (1) is provided with a hand wheel (20), one end of the push-pull rod (19) is hingedly installed on the bottom surface of the movable plate (14), and the other end is hingedly connected with the screw sleeve (18).

7. The high-voltage fuse protection device according to claim 6, characterized in that The driving assembly further comprises a guide unit symmetrically arranged in the protection box (1), the guide unit comprises a pair of support rods (21) fixedly arranged on the inner wall of the protection box (1) and a guide rod (22) fixedly arranged between the two support rods (21), and the movable plate (14) is movably installed on the guide rod (22).

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