Fuse with safety protection cover

Abstract

The utility model discloses a fuse with a safety protection cover, which comprises a fixed plate, the upper surface of the fixed plate is fixedly connected with two groups of supporting plates, the top ends of the two groups of supporting plates are fixedly connected with a connecting plate together, and an electric push rod is fixedly embedded in the upper surface of the connecting plate. The telescopic ends of the two electric push rods are jointly and fixedly connected with a pressure plate, the bottom face of the pressure plate is fixedly connected with a protective cover, and the upper surface of the fixing plate is fixedly connected with a containing plate. According to the device, through cooperation of an electric push rod, a pressure plate and a sliding plate, the effect that the pressure plate and the sliding plate drive a protection frame to move is achieved, through cooperation of a guide groove and a guide block, the purpose of positioning a protection cover is achieved, and the phenomenon that the protection cover deviates during moving is prevented; and through mutual cooperation of a first clamping concave block and a second clamping concave block, a cable is positioned, and a heat insulation plate is utilized to protect the protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a fuse with a safety protection cover. Background Art

[0002] A fuse is an electrical appliance that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. A fuse is a current protector made based on the principle that when the current exceeds the specified value for a period of time, the heat generated by itself will melt the fuse and disconnect the circuit. Fuses are widely used in high and low voltage power distribution systems and control systems as well as electrical equipment. As a short circuit and overcurrent protector, it is one of the most commonly used protection devices.

[0003] As the simplest protective device, fuses can protect electrical equipment from damage caused by overload current. However, fuses in the prior art still have some disadvantages when used. They do not have a protective effect. When an overload occurs, they are prone to generate a large amount of heat and explode, so that the wire ends are exposed, which poses certain safety hazards and reduces the effectiveness of the fuse. To this end, we propose a fuse with a safety protection cover to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a fuse with a safety protection cover to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fuse with a safety protection cover comprises a fixing plate, the upper surface of the fixing plate is fixedly connected to two groups of support plates, the top ends of the two groups of support plates are commonly fixedly connected to a connecting plate, the upper surface of the connecting plate is fixedly inlaid with an electric push rod, the telescopic ends of the two electric push rods are commonly fixedly connected to a pressure plate, the bottom surface of the pressure plate is fixedly connected to a protective cover, the upper surface of the fixing plate is fixedly connected to a placement plate, the upper surface of the placement plate is fixedly installed with a fuse body, the upper surface of the fixing plate is fixedly connected to two first clamping recesses, the bottom surface of the pressure plate is fixedly connected to two sliding plates, the bottom surface of each sliding plate is fixedly connected to a second clamping recess, and the inner side wall of the protective cover is provided with two clamping grooves.

[0007] In a further embodiment, a reinforcement ring is fixedly connected to the outer surface of each electric push rod, and a bottom end of each reinforcement ring is fixedly connected to the upper surface of the connecting plate.

[0008] In a further embodiment, two reinforcement plates are fixedly connected to the upper surface of the placement plate, and the side surfaces of the two reinforcement plates close to each other are fixedly connected to the front side and the back side of the fuse body respectively.

[0009] In a further embodiment, a guide groove is provided on the side surfaces of the two groups of support plates close to each other, a guide block is slidably connected inside each guide groove, and the side surfaces of the two groups of guide blocks close to each other are fixedly connected to the front and back sides of the sliding plate respectively.

[0010] In a further embodiment, two heat insulation plates are provided inside the protective cover, and the side surfaces of the two heat insulation plates that are away from each other are fixedly connected to the inner side wall of the protective cover.

[0011] In a further embodiment, the side surfaces of the two groups of support plates close to each other are fixedly connected with stabilizing blocks, the side surfaces of the two groups of stabilizing blocks close to each other are respectively fixedly connected to the front side of the first clamping recess and the back side of the first clamping recess, and the bottom surface of each of the stabilizing blocks is fixedly connected to the upper surface of the fixing plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device plays the role of enabling the pressure plate and the sliding plate to drive the protection frame to move through the cooperation of the electric push rod, the pressure plate and the sliding plate, and utilizes the cooperation of the guide groove and the guide block to achieve the purpose of positioning the protective cover to prevent the protective cover from shifting when moving. The mutual cooperation of the first clamping recessed block and the second clamping recessed block plays the role of positioning the cable, and utilizes the heat insulation plate to protect the protective cover, thereby effectively solving the problem of lack of protection. When overload occurs, a large amount of heat is easily generated and then exploded, so that the wire ends are exposed, there are certain safety hazards, thereby reducing the use effect of the fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a fixing plate of a fuse with a safety protection cover.

[0015] Figure 2 The diagram is a top-sectional structural diagram of a support plate in a fuse with a safety protection cover.

[0016] Figure 3 The present invention is a schematic diagram of the structure of a protective cover in a fuse having a safety protective cover when viewed from above.

[0017] Figure 4 The figure is a top view structural schematic diagram of a placement plate in a fuse with a safety protection cover.

[0018] In the figure: 1. fixing plate; 2. supporting plate; 3. connecting plate; 4. electric push rod; 5. reinforcement ring; 6. pressure plate; 7. protective cover; 8. placement plate; 9. fuse body; 10. reinforcement plate; 11. first clamping recessed block; 12. sliding plate; 13. guide groove; 14. guide block; 15. second clamping recessed block; 16. clamping groove; 17. heat insulation plate; 18. stabilizing block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 In the utility model, a fuse with a safety protection cover comprises a fixing plate 1, two groups of support plates 2 are fixedly connected to the upper surface of the fixing plate 1, the tops of the two groups of support plates 2 are commonly fixedly connected to a connecting plate 3, an electric push rod 4 is fixedly inlaid on the upper surface of the connecting plate 3, the telescopic ends of the two electric push rods 4 are commonly fixedly connected to a pressure plate 6, a protective cover 7 is fixedly connected to the bottom surface of the pressure plate 6, a placement plate 8 is fixedly connected to the upper surface of the fixing plate 1, a fuse body 9 is fixedly installed on the upper surface of the placement plate 8, two first clamping recesses 11 are fixedly connected to the upper surface of the fixing plate 1, two sliding plates 12 are fixedly connected to the bottom surface of the pressure plate 6, a second clamping recess 15 is fixedly connected to the bottom surface of each sliding plate 12, and two clamping grooves 16 are provided on the inner side wall of the protective cover 7.

[0021] The outer surface of each electric push rod 4 is fixedly connected with a reinforcement ring 5, and the bottom end of each reinforcement ring 5 is fixedly connected to the upper surface of the connecting plate 3. The reinforcement ring 5 is provided to facilitate the reinforcement of the electric push rod 4. Two reinforcement plates 10 are fixedly connected to the upper surface of the placement plate 8. The side surfaces of the two reinforcement plates 10 close to each other are respectively fixedly connected to the front side and the back side of the fuse body 9. The reinforcement plates 10 are provided to facilitate the reinforcement of the fuse body 9. Guide grooves 13 are provided on the side surfaces of the two groups of support plates 2 close to each other. A guide block 14 is slidably connected to the inside of each guide groove 13. The side surfaces of the two groups of guide blocks 14 close to each other are respectively fixedly connected to the front side and the back side of the sliding plate 12. The guide grooves 13 and the guide blocks 14 are provided to facilitate the sliding plate 12 to be more stable when moving.

[0022] Two heat insulation plates 17 are provided inside the protective cover 7, and the sides of the two heat insulation plates 17 that are away from each other are fixedly connected to the inner wall of the protective cover 7. The heat insulation plates 17 are provided to facilitate the protection of the protective cover 7. The sides of the two groups of support plates 2 that are close to each other are fixedly connected with stabilizing blocks 18. The sides of the two groups of stabilizing blocks 18 that are close to each other are respectively fixedly connected to the front side of the first clamping recess 11 and the back side of the first clamping recess 11. The bottom surface of each stabilizing block 18 is fixedly connected to the upper surface of the fixing plate 1. The first clamping recess 11 and the second clamping recess 15 are provided to facilitate the positioning of the cable.

[0023] The working principle of the utility model is:

[0024] When in use, first connect the electric push rod 4 to the power supply and control it through the control switch. By starting the electric push rod 4, the pressure plate 6 can be driven to move up and down. Since the bottom surface of the pressure plate 6 is fixedly connected with the sliding plate 12, the sliding plate 12 can be driven to move. With the movement of the sliding plate 12, it is easy to drive the guide block 14 to slide along the guide groove 13, so that the protective cover 7 can be more stable when moving, and the cable can be positioned by utilizing the cooperation of the first clamping recess 11 and the second clamping recess 15. At the same time, the protective cover 7 will protect the fuse body 9, thereby completing the protection work of the fuse body 9.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fuse with a safety protection cover, characterized in that: The invention comprises a fixing plate (1), wherein the upper surface of the fixing plate (1) is fixedly connected with two groups of support plates (2), the top ends of the two groups of support plates (2) are commonly fixedly connected with a connecting plate (3), the upper surface of the connecting plate (3) is fixedly inlaid with an electric push rod (4), the telescopic ends of the two electric push rods (4) are commonly fixedly connected with a pressure plate (6), the bottom surface of the pressure plate (6) is fixedly connected with a protective cover (7), the upper surface of the fixing plate (1) is fixedly connected with a placement plate (8), the upper surface of the placement plate (8) is fixedly installed with a fuse body (9), the upper surface of the fixing plate (1) is fixedly connected with two first snap-in recesses (11), the bottom surface of the pressure plate (6) is fixedly connected with two sliding plates (12), the bottom surface of each sliding plate (12) is fixedly connected with a second snap-in recess (15), and the inner side wall of the protective cover (7) is provided with two snap-in grooves (16).

2. A fuse with a safety protection cover according to claim 1, characterized in that: The outer surface of each electric push rod (4) is fixedly connected to a reinforcement ring (5), and the bottom end of each reinforcement ring (5) is fixedly connected to the upper surface of the connecting plate (3).

3. A fuse with a safety protection cover according to claim 1, characterized in that: Two reinforcing plates (10) are fixedly connected to the upper surface of the placement plate (8), and the side surfaces of the two reinforcing plates (10) close to each other are respectively fixedly connected to the front side of the fuse body (9) and the back side of the fuse body (9).

4. A fuse with a safety protection cover according to claim 1, characterized in that: A guide groove (13) is provided on the side surfaces of the two groups of support plates (2) close to each other, and a guide block (14) is slidably connected inside each guide groove (13). The side surfaces of the two groups of guide blocks (14) close to each other are fixedly connected to the front side of the sliding plate (12) and the back side of the sliding plate (12), respectively.

5. A fuse with a safety protection cover according to claim 1, characterized in that: Two heat insulation plates (17) are arranged inside the protective cover (7), and the side surfaces of the two heat insulation plates (17) that are away from each other are fixedly connected to the inner side wall of the protective cover (7).

6. A fuse with a safety protection cover according to claim 1, characterized in that: The side surfaces of the two groups of support plates (2) close to each other are fixedly connected with stabilizing blocks (18), and the side surfaces of the two groups of stabilizing blocks (18) close to each other are respectively fixedly connected to the front side of the first clamping recessed block (11) and the back side of the first clamping recessed block (11), and the bottom surface of each stabilizing block (18) is fixedly connected to the upper surface of the fixing plate (1).

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