Shielding cover convenient to assemble

Abstract

The utility model discloses a shielding case convenient to assemble. Relates to the technical field of shielding cases. Comprising a shielding case body, a connecting mechanism is arranged on the inner side of the shielding case body, the connecting mechanism comprises a fixed piece and a movable piece, the two ends of the fixed piece are welded to the inner wall of the shielding case body, the middle of the fixed piece and the middle of the movable piece are each provided with a bent part, and the two bent parts can define a circular installation channel. The installation column is arranged in the installation channel in a penetrating mode, a pair of screws is arranged between the fixed piece and the movable piece, nuts are arranged on the screws in a screwed mode, and springs are further arranged on the screws in a sleeved mode. A detachable supporting unit is arranged between the two bent parts, and when the supporting unit is arranged in the installation channel, the movable piece is far away from the fixed piece, and the spring is in a stretching state. According to the invention, the preliminary fixation of the shielding case body is realized through the rapid dismounting of the supporting unit, and the installation efficiency of the shielding case body is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shielding cover, in particular to a shielding cover convenient to assemble. BACKGROUND

[0002] At present, China has become the largest country in the world in terms of the number of operating and under-construction DC projects, the largest capacity, and the longest line. The fittings commonly used in power transmission lines include line clamps, hanging plates, bolts and other components with edges and corners. Under high voltage, the high potential gradient of the sharp end of the fitting will produce strong corona, and the surface electric field strength of the fitting is a characteristic value representing whether the fitting surface will produce corona. Therefore, a shielding cover needs to be covered outside the insulator and the fitting to avoid the above situation.

[0003] In the existing related technology, when the shielding cover is installed on the mounting column of the fitting, a plurality of nuts need to be screwed to realize the fixation of the shielding cover. However, since the installation position is high, when the first nut is screwed, the operator needs to fix the shielding cover with one hand and screw the bolt and the nut with the other hand, that is, the operator needs to install the nut with one hand, which is difficult and consumes a lot of physical strength of the operator. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the shortcomings of the prior art, the present application provides a shielding cover convenient to assemble.

[0005] The present application adopts the following technical scheme: a shielding cover convenient to assemble, comprising a shielding cover body, the shielding cover body is annular, a connecting mechanism is arranged on the inner side of the shielding cover body, the connecting mechanism is used for connecting the shielding cover body and a mounting column, the connecting mechanism comprises a fixed sheet and a movable sheet, both ends of the fixed sheet are welded on the inner wall of the shielding cover body, the middle part of the fixed sheet and the movable sheet are both provided with a curved part, two curved parts can be combined to form a circular mounting channel, the mounting column is arranged in the mounting channel, a pair of screw rods are arranged between the fixed sheet and the movable sheet, nuts are rotatably arranged on the screw rods, springs are further sleeved on the screw rods;

[0006] A detachable supporting unit is arranged between the two curved parts, when the supporting unit is arranged in the mounting channel, the movable sheet is away from the fixed sheet and the spring is in a stretched state.

[0007] Optionally, the tail part of the screw rod abuts against the outer wall of the fixed sheet, the head part of the screw rod passes through the fixed sheet and the movable sheet in sequence, the nut is rotatably arranged on the screw rod in a matched manner, the nut is in contact with the movable sheet and is used for locking the movable sheet and the fixed sheet.

[0008] Optionally, the inner side of the two bending parts is provided with a threaded hole, the support unit comprises a first screw rod, a second screw rod and an adjusting sleeve, one end of the first screw rod and one end of the second screw rod are respectively and one-to-one screwed in the two threaded holes, the other end of the first screw rod is close to the other end of the second screw rod;

[0009] The adjusting sleeve is sleeved outside the other end of the first screw rod and the other end of the second screw rod, and the adjusting sleeve is connected with the first screw rod and the second screw rod through threads, and the thread rotation direction between the adjusting sleeve and the first screw rod is opposite to the thread rotation direction between the adjusting sleeve and the second screw rod.

[0010] Optionally, a pull ring is arranged on the outer wall of the adjusting sleeve, and a pull rope is arranged on the pull ring to facilitate pulling.

[0011] Optionally, an insertion slot is further arranged on the inner wall of the two bending parts, the insertion slot is coaxially arranged with the threaded hole, a clamp sleeve is arranged on the first screw rod and the second screw rod, a cutting line is arranged on the first screw rod and the second screw rod, the first screw rod and the second screw rod can be broken at the cutting line, and when one end of the clamp sleeve is screwed into the insertion slot, the cutting line is located on the inner side of the clamp sleeve.

[0012] Optionally, the cutting line is located on the inner side of the insertion slot, and the outer wall of the clamp sleeve can be attached to the inner wall of the insertion slot.

[0013] Compared with the prior art, in the present application, the size of the installation channel is expanded by the supporting effect of the support unit before installation, so that the installation column can be easily inserted into the installation channel. When the installation column is connected with the installation channel, the support unit is damaged by pulling the pull rope, so that the movable piece is pulled towards the fixed piece under the action of the spring force, so that the movable piece and the fixed piece can clamp the installation column, realizing the preliminary fixation of the shielding cover body. Then the operator can use both hands to quickly tighten the nut, effectively improving the installation efficiency of the shielding cover body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present application;

[0015] Figure 2 is an assembly state reference diagram of the fixed piece, the movable piece and the support unit;

[0016] Figure 3 is Figure 2 action state reference diagram of the present application;

[0017] In the diagram: 1. Shielding cover body; 2. Connecting mechanism; 21. Fixing plate; 211. Bending part; 2111. Threaded hole; 2112. Slot; 212. Screw; 213. Nut; 214. Spring; 22. Movable plate; 23. Installation channel; 3. Support unit; 31. First lead screw; 311. Clip; 312. Cut-off wire; 32. Second lead screw; 33. Adjusting sleeve; 331. Pull ring; 332. Pull rope. Detailed Implementation

[0018] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0019] like Figures 1-3 As shown, an easy-to-assemble shielding cover includes a shielding cover body 1, which is annular. A connecting mechanism 2 is provided on the inner side of the shielding cover body 1. The connecting mechanism 2 is used to connect the shielding cover body 1 and the mounting post. The connecting mechanism 2 includes a fixed plate 21 and a movable plate 22. The two ends of the fixed plate 21 are welded to the inner wall of the shielding cover body 1. Both the fixed plate 21 and the movable plate 22 have a bent portion 211 in the middle. The two bent portions 211 can be closed to form a circular mounting channel 23. The mounting post passes through the mounting channel 23. A pair of screws 212 are provided between the fixed plate 21 and the movable plate 22. A nut 213 is screwed on the screws 212. A spring 214 is also sleeved on the screws 212. A detachable support unit 3 is provided between the two bent portions 211. When the support unit 3 is located in the mounting channel 23, the movable plate 22 is away from the fixed plate 21 and the spring 214 is in a stretched state.

[0020] With the support of the support unit 3, the installation channel 23 is in an expanded state, making it easy for the operator to fit the installation channel 23 onto the outside of the installation column. At this time, the support unit 3 is removed, and the spring 214 will contract accordingly, causing the movable piece 22 to move toward the fixed piece 21. That is, the installation channel 23 will shrink and clamp the installation column, thus achieving the initial fixation of the shield body 1. In this way, the operator does not need to fix the shield body 1 by hand and can use both hands to rotate the nut 213, which effectively improves the installation efficiency.

[0021] The tail of the screw 212 abuts against the outer wall of the fixed plate 21, and the head of the screw 212 passes through the fixed plate 21 and the movable plate 22 in sequence. The nut 213 is screwed onto the screw 212, and the nut 213 contacts the movable plate 22 and is used to lock the movable plate 22 and the fixed plate 21. After tightening the nut 213, the two bent parts 211 will form a clamping effect on the mounting post, thereby ensuring that the mounting post can be fixed between the movable plate 22 and the fixed plate 21, thus realizing the quick installation of the shielding cover.

[0022] The inner side of each of the two bending portions 211 is provided with a threaded hole 2111, the support unit 3 comprises a first screw rod 31, a second screw rod 32 and an adjusting sleeve 33, one end of the first screw rod 31 and one end of the second screw rod 32 are respectively and correspondingly screwed in the two threaded holes 2111, the other end of the first screw rod 31 is close to the other end of the second screw rod 32; the adjusting sleeve 33 is sleeved on the outer side of the other end of the first screw rod 31 and the outer side of the other end of the second screw rod 32, the adjusting sleeve 33 is connected with the first screw rod 31 and the second screw rod 32 through threads, and the screw rotation direction between the adjusting sleeve 33 and the first screw rod 31 is opposite to the screw rotation direction between the adjusting sleeve 33 and the second screw rod 32.

[0023] The adjusting sleeve 33 can be rotated before assembly, so that the first screw rod 31 and the second screw rod 32 are away from each other, so that the movable piece 22 moves towards the direction away from the fixed piece 21, thereby expanding the inner diameter of the mounting channel 23, facilitating quick sleeving with the mounting column.

[0024] The outer wall of the adjusting sleeve 33 is provided with a pull ring 331, and the pull ring 331 is provided with a pull rope convenient for pulling. When the mounting column is sleeved into the mounting channel 23, the pull rope can be pulled to break the support unit 3, so as to realize the automatic resetting of the movable piece 22, and then complete the automatic preliminary fixing of the shielding case body 1.

[0025] The inner wall of each of the two bending portions 211 is further provided with a slot 2112, the slot 2112 is coaxially arranged with the threaded hole 2111, a clamp sleeve 311 is screwed on each of the first screw rod 31 and the second screw rod 32, a cutting line 312 is arranged on each of the first screw rod 31 and the second screw rod 32, the first screw rod 31 and the second screw rod 32 can be broken at the cutting line 312, when one end of the clamp sleeve 311 is screwed into the slot 2112, the cutting line 312 is located on the inner side of the clamp sleeve 311. During transportation, the clamp sleeve 311 can be screwed into the slot 2112, so that the cutting line 312 is located on the inner side of the clamp sleeve 311, at this time, under the clamping action of the clamp sleeve 311, the first screw rod 31 and the second screw rod 32 are not easy to break at the cutting line 312. During installation, the clamp sleeve 311 can be unscrewed from the slot 2112, so that the cutting line 312 is in an exposed state, at this time, the first screw rod 31 and the second screw rod 32 can be easily broken by pulling the pull rope, further simplifying the installation steps.

[0026] The cutting line 312 is located on the inner side of the slot 2112, the outer wall of the clamp sleeve 311 can be attached to the inner wall of the slot 2112, so that when the first screw rod 31 and the second screw rod 32 are broken at the cutting line 312, the parts left in the threaded hole 2111 and the slot 2112 will not protrude to the outer side of the slot 2112, and will not contact the mounting rod, thereby ensuring that the two bending portions 211 can be reliably attached to the mounting column and locked with the mounting column.

[0027] The above embodiments are merely preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art based on the present application shall fall within the scope of protection of the present application.

Claims

1. A shield cover which is easy to assemble, comprising a shield cover body (1) which is ring-shaped, the inner side of the shield cover body (1) being provided with a connecting mechanism (2) for connecting the shield cover body (1) and a mounting column, characterized in that, The connecting mechanism (2) comprises a fixed sheet (21) and a movable sheet (22), both ends of the fixed sheet (21) are welded on the inner wall of the shielding cover body (1), the middle part of the fixed sheet (21) and the movable sheet (22) is provided with a bending part (211), two bending parts (211) can be combined to form a circular mounting channel (23), the mounting column is arranged in the mounting channel (23), a pair of screw rods (212) are arranged between the fixed sheet (21) and the movable sheet (22), nuts (213) are arranged on the screw rods (212), springs (214) are further arranged on the screw rods (212); A detachable support unit (3) is arranged between the two bending parts (211), when the support unit (3) is arranged in the mounting channel (23), the movable sheet (22) is away from the fixed sheet (21) and the spring (214) is in a stretched state.

2. A shield according to claim 1, wherein, The tail of the screw rod (212) abuts against the outer wall of the fixed sheet (21), the head of the screw rod (212) passes through the fixed sheet (21) and the movable sheet (22) in sequence, the nut (213) is rotatably arranged on the screw rod (212), the nut (213) is in contact with the movable sheet (22) and is used for locking the movable sheet (22) and the fixed sheet (21).

3. A shield according to claim 1, wherein, The inner side of the two bending parts (211) is provided with a threaded hole (2111), the support unit (3) comprises a first lead screw (31), a second lead screw (32) and an adjusting sleeve (33), one end of the first lead screw (31) and one end of the second lead screw (32) are rotatably arranged in the two threaded holes (2111) respectively and one by one, the other end of the first lead screw (31) is close to the other end of the second lead screw (32); The adjusting sleeve (33) is arranged on the outer side of the other end of the first lead screw (31) and the outer side of the other end of the second lead screw (32), the adjusting sleeve (33) is connected with the first lead screw (31) and the second lead screw (32) through threads, the thread rotation direction between the adjusting sleeve (33) and the first lead screw (31) is opposite to the thread rotation direction between the adjusting sleeve (33) and the second lead screw (32).

4. A shield according to claim 3, wherein, The outer wall of the adjusting sleeve (33) is provided with a pull ring (331), the pull ring (331) is provided with a pull rope (332) which is convenient to pull.

5. A shield according to claim 4, wherein, The inner wall of the two bending parts (211) is further provided with a slot (2112), the slot (2112) is coaxially arranged with the threaded hole (2111), a clamp sleeve (311) is rotatably arranged on the first lead screw (31) and the second lead screw (32), the first lead screw (31) and the second lead screw (32) are provided with a cutoff line (312), the first lead screw (31) and the second lead screw (32) can be broken at the cutoff line (312), when one end of the clamp sleeve (311) is rotated into the slot (2112), the cutoff line (312) is located on the inner side of the clamp sleeve (311).

6. A shield according to claim 5, wherein, The cutting line (312) is located inside the slot (2112), and the outer wall of the jacket (311) can be attached to the inner wall of the slot (2112).

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