Fuse shielding cover

Abstract

The utility model discloses a fuse shielding cover which comprises a cover shell and a positioning piece, the cover shell is a U-shaped insulating material shell, the positioning piece is transversely arranged at an opening of the cover shell in a penetrating mode, and two sets of adapters serving as holding handles are arranged on the two sides of the cover shell. The cover shell comprises a middle shell body and two groups of end shell bodies fixed at the two ends of the middle shell body, a positioning hole allowing the positioning piece to transversely penetrate through is transversely formed in the bottom of the middle shell body in a penetrating mode, the positioning piece comprises a supporting rod penetrating into the positioning hole, and the supporting rod is in clearance fit with the positioning hole. The beneficial effects are that the fixed housing with the positioning member is used as the shielding cover, the positioning member is arranged to lock after the housing is clamped outside the fuse, the shielding cover is prevented from being separated from the fuse, the positioning member is inserted into the positioning hole through the retaining tip to realize connection of two sides of the bottom of the housing, and disassembly and assembly are simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the field of live working facilities for distribution networks, in particular to a fuse shielding cover. Background Art

[0002] Drop-out fuses are an important component structure on the high-voltage side of the distribution network and are also vulnerable parts in the distribution network system. When replacing fuses, since power outage replacement will affect downstream electricity consumption, in order to ensure power supply reliability, it is usually necessary to replace the fuses in a live state. During the replacement process, in order to avoid the arc discharge generated during replacement posing a threat to personnel safety, it is necessary to shield and protect the fuses on both sides that are close to each other. Therefore, a fuse shielding cover is needed. Currently, most fuse shielding covers are made of soft rubber materials or directly replaced by insulating blankets. Wrapping the fuse with soft materials is called wrapped shielding isolation, which has poor fixing firmness, cumbersome operation, and a risk of falling off, and poor practicality. Utility Model Content

[0003] The purpose of the utility model is to provide a fuse shielding cover in order to solve the above-mentioned problem. A fixed cover shell with a positioning piece is provided as the shielding cover. A positioning piece is provided to lock the cover shell after it is clamped to the outside of the fuse to prevent the shielding cover from detaching from the fuse. At the same time, the positioning piece is inserted into the positioning hole through a stop tip to connect the two sides of the bottom of the cover shell. The disassembly and assembly is simpler and the practicability is strong. Please see the following description for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a fuse shielding cover, comprising a cover shell and a positioning piece, wherein the cover shell is a U-shaped insulating material shell, the positioning piece is transversely penetrated at the opening of the cover shell, and two sets of adapters as gripping handles are arranged on both sides of the cover shell;

[0006] The cover shell includes a middle shell and two groups of end shells fixed at both ends of the middle shell. A positioning hole is horizontally penetrated through the bottom of the middle shell to accommodate the positioning member to pass through horizontally. The positioning member includes a support rod that penetrates into the positioning hole. The support rod is gap-fitted with the positioning hole. Multiple groups of conical stop tips are fixed to the end of the support rod along its length direction. The stop tips are snap-fitted and locked with the positioning hole.

[0007] When using the above-mentioned fuse shielding cover, the cover is clamped onto the outside of the drop-type fuse to be protected through the bottom opening, and then one end of the stop tip of the positioning piece is passed through the positioning holes on both sides of the cover in turn, so as to keep the limiting ring and the stop tip of the positioning piece on both sides of the cover respectively, thereby realizing the constraint locking of the positioning piece on the opening of the cover, and at the same time, the corresponding position of the positioning hole on the side of the cover close to the stop tip in multiple groups of stop tips can be adjusted to adjust the locking and gathering degree of the bottom opening of the cover, thereby realizing the clamping shielding protection of different fuse sizes.

[0008] Preferably, one end of the support rod away from the stop tip passes through the cover shell and is connected to a pull ring, which is a circular ring structure. A pull rod that passes through the middle of the support rod is fixed to the outside of the pull ring, and the pull rod is threadedly matched with the support rod.

[0009] Preferably, a limiting ring is sleeved on the outer side of the pull rod and pressed against the end face of the support rod, and the outer diameter of the limiting ring is larger than the diameter of the positioning hole.

[0010] Preferably, the four corners of the top side of the middle shell body at the joints with the end shell body are all protruded upward to form a reinforcement portion, and the outer edges of the middle shell body and the end shell body are turned outward to form a convex edge of an integral structure.

[0011] Preferably, a plurality of fixing holes are provided on both sides of the middle shell corresponding to the adapter, and the fixing holes do not completely penetrate the side wall of the middle shell.

[0012] Preferably, the adapter comprises a mounting plate pressed against the side wall of the middle shell, and the mounting plate has auxiliary holes for passing screws to fix the cover shell through the four corners corresponding to the fixing holes.

[0013] Preferably, the middle portion of the mounting plate protrudes outward to form a vertical plate, a finger-penetrating hole is passed through the center of the vertical plate, and a plurality of groups of arc-shaped stabilizing grooves are arranged on the outer side of the vertical plate.

[0014] Preferably, reinforcement plates are provided on both sides of the junction between the vertical plate and the mounting plate, and the reinforcement plates, the vertical plate and the mounting plate are all made of engineering plastics and are integrally formed.

[0015] The beneficial effect is that: the utility model sets a fixed cover with a positioning piece as a shielding cover, and the cover that can be elastically gathered through the bottom opening is bound to the outside of the fuse, and the end shells in the open state at both ends cooperate with the middle shell to better fit the external structural shape of the drop-out fuse;

[0016] At the same time, a positioning piece is provided to lock the cover after it is clamped to the outside of the fuse to prevent the shielding cover from detaching from the fuse. At the same time, the positioning piece is inserted into the positioning hole through the stop tip to connect the two sides of the bottom of the cover, making disassembly and assembly easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the main structural diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the structural disassembly of the positioning member of the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the adapter of the utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Cover shell; 101. Middle shell; 101a. Reinforcement part; 101b. Fixing hole; 102. End shell; 103. Positioning hole; 104. Protruding edge; 2. Positioning piece; 201. Support rod; 202. Stop tip; 203. Limiting ring; 204. Pull ring; 204a. Pull rod; 3. Adapter; 301. Mounting plate; 301a. Auxiliary hole; 302. Vertical plate; 303. Finger hole; 304. Stabilizing groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 As shown, the utility model provides a fuse shielding cover, including a cover shell 1 and a positioning member 2, the cover shell 1 is a U-shaped insulating material shell, preferably an elastic engineering plastic material, which can ensure the insulation performance of the cover shell 1 and the expandable elasticity of the opening, the positioning member 2 is transversely penetrated at the opening of the cover shell 1, and two sets of adapters 3 as gripping handles are arranged on both sides of the cover shell 1;

[0027] The cover 1 includes a middle shell 101 and two groups of end shells 102 fixed at both ends of the middle shell 101. The end shells 102 expand outward to adapt to the shape of the drop-out type fuse through the end shells 102 and the middle shell 101. A positioning hole 103 for accommodating the positioning member 2 to pass through laterally is penetrated horizontally at the bottom of the middle shell 101. The positioning member 2 includes a support rod 201 that penetrates into the positioning hole 103. The support rod 201 is clearance-matched with the positioning hole 103. A plurality of groups of conical stop tips 202 are fixed to the end of the support rod 201 along its length direction. The stop tips 202 and the support rod 201 are both made of elastic plastic material to ensure that the stop tips 202 can be squeezed and inserted into the positioning hole 103. The stop tips 202 are locked with the positioning hole 103 to realize the connection of the positioning member 2 to the bottom opening of the cover 1, and then the positioning member 2 can be used to realize the connection and tightening of the two sides of the bottom opening of the cover 1 to prevent the cover 1 from loosening and falling after being clamped to the outside of the fuse.

[0028] As an optional embodiment, one end of the support rod 201 away from the stop tip 202 passes through the cover 1 and is connected to a pull ring 204. The pull ring 204 is a circular ring structure. A pull rod 204a that penetrates the middle part of the support rod 201 is fixed on the outside of the pull ring 204. The pull rod 204a is threadedly matched with the support rod 201. A limiting ring 203 that is tightly pressed against the end face of the support rod 201 is sleeved on the outside of the pull rod 204a. The outer diameter of the limiting ring 203 is larger than the diameter of the positioning hole 103. The limiting ring 203 is fixed to the end face of the support rod 201 by the pull ring 204 and the pull rod 204a, and the limiting ring 203 is used to prevent the positioning member 2 from being completely disengaged from the positioning hole 103.

[0029] The four corners of the top side of the middle shell 101 and the end shell 102 are all convex upward to form a reinforcement part 101a, and the outer edges of the middle shell 101 and the end shell 102 are turned outward to form a convex edge 104 of an integral structure, so that the convex edge 104 is provided to increase the smoothness of the process of crimping and installing the cover 1 on the fuse;

[0030] Four sets of fixing holes 101b are provided on both sides of the middle shell 101 corresponding to the adapter 3, and the fixing holes 101b do not completely penetrate the side wall of the middle shell 101 to ensure the integrity of the side wall of the cover 1. The adapter 3 includes a mounting plate 301 that is pressed against the side wall of the middle shell 101. The four corners of the mounting plate 301 correspond to the fixing holes 101b and penetrate auxiliary holes 301a for screwing and fixing the cover 1, so as to realize the connection and fixation of the adapter 3 on the outside of the cover 1.

[0031] The middle part of the mounting plate 301 protrudes outward to form a vertical plate 302, and a finger hole 303 is passed through the center of the vertical plate 302. A plurality of arc-shaped stabilizing grooves 304 are arranged on the outer side of the vertical plate 302 to improve the grasping stability. Reinforcement plates are arranged on both sides of the junction of the vertical plate 302 and the mounting plate 301. The reinforcement plates, the vertical plate 302 and the mounting plate 301 are all made of engineering plastics and are integrally formed.

[0032] With the above structure, when in use, the cover shell 1 is clamped to the outside of the drop-out fuse to be protected through the bottom opening, and then one end of the stop tip 202 of the positioning member 2 is sequentially passed through the positioning holes 103 on both sides of the cover shell 1, so as to keep the limiting ring 203 and the stop tip 202 of the positioning member 2 respectively placed on both sides of the cover shell 1, thereby realizing the constraint locking of the positioning member 2 on the opening of the cover shell 1, and at the same time, by adjusting the corresponding position of the positioning hole 103 on the side of the cover shell 1 close to the stop tip 202 in the multiple groups of stop tips 202, the locking and gathering degree of the bottom opening of the cover shell 1 can be adjusted to realize the clamping shielding protection of fuses of different sizes;

[0033] By setting a fixed cover 1 with a positioning member 2 as a shielding cover, the cover 1 that can be elastically gathered through the bottom opening is bound to the outside of the fuse, and the end shell 102 in a stretched state at both ends cooperates with the middle shell 101 to better fit the external structural shape of the drop-out fuse;

[0034] At the same time, a positioning member 2 is provided to lock the cover 1 after it is clamped onto the outside of the fuse to prevent the shielding cover from detaching from the fuse. At the same time, the positioning member 2 is inserted into the positioning hole 103 through the stop tip 202 to connect the two sides of the bottom of the cover 1, making disassembly and assembly easier and more practical.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fuse shielding cover, characterized in that: The invention comprises a housing (1) and a positioning member (2), wherein the housing (1) is a U-shaped insulating material shell, the positioning member (2) is transversely arranged at the opening of the housing (1), and two sets of adapters (3) serving as gripping handles are arranged on both sides of the housing (1); The cover shell (1) comprises a middle shell (101) and two groups of end shells (102) fixed at both ends of the middle shell (101); a positioning hole (103) for accommodating the positioning member (2) to pass through laterally is formed through the bottom of the middle shell (101); the positioning member (2) comprises a support rod (201) inserted into the positioning hole (103); the support rod (201) and the positioning hole (103) are clearance-matched; a plurality of groups of conical stop tips (202) are fixed to the end of the support rod (201) along its length direction; the stop tips (202) are snap-fitted and locked with the positioning hole (103).

2. A fuse shielding cover according to claim 1, characterized in that: One end of the support rod (201) away from the stop tip (202) passes through the cover shell (1) and is connected to a pull ring (204). The pull ring (204) is a circular ring structure. A pull rod (204a) that passes through the middle of the support rod (201) is fixed on the outside of the pull ring (204). The pull rod (204a) is threadedly matched with the support rod (201).

3. A fuse shielding cover according to claim 2, characterized in that: A limiting ring (203) is sleeved on the outside of the pull rod (204a) and is pressed tightly against the end surface of the support rod (201); the outer diameter of the limiting ring (203) is greater than the diameter of the positioning hole (103).

4. A fuse shielding cover according to claim 3, characterized in that: The four corners of the top side of the middle shell (101) where they meet the end shell (102) all protrude upwards to form a reinforcement portion (101a), and the outer edges of the middle shell (101) and the end shell (102) are turned outwards to form a convex edge (104) of an integral structure.

5. A fuse shielding cover according to claim 4, characterized in that: Multiple groups of fixing holes (101b) are provided on both sides of the middle shell (101) corresponding to the adapter (3), and the fixing holes (101b) do not completely penetrate the side wall of the middle shell (101).

6. A fuse shielding cover according to claim 5, characterized in that: The adapter (3) comprises a mounting plate (301) pressed against the side wall of the middle shell (101), and the mounting plate (301) has auxiliary holes (301a) passing through the four corners corresponding to the fixing holes (101b) for screws to fix the cover shell (1).

7. A fuse shielding cover according to claim 6, characterized in that: The middle part of the mounting plate (301) protrudes outward to form a vertical plate (302), a finger hole (303) passes through the center of the vertical plate (302), and a plurality of groups of arc-shaped stabilizing grooves (304) are arranged on the outer side of the vertical plate (302).

8. A fuse shielding cover according to claim 7, characterized in that: Reinforcement plates are provided on both sides of the junction between the vertical plate (302) and the mounting plate (301); the reinforcement plates, the vertical plate (302) and the mounting plate (301) are all made of engineering plastics and are integrally formed.

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