Side expansion casing

Abstract

The utility model relates to the technical field of side expansion bushings, specifically a side expansion bushing, comprising an insulating shell, a conductive member is installed at the top position inside the insulating shell, a shielding mechanism is arranged at the bottom position inside the insulating shell, the shielding mechanism includes a connecting assembly and a shielding net inside, a high-efficiency sealing mechanism is arranged at the bottom of the insulating shell, the high-efficiency sealing mechanism is composed of a sealing ring and a high-efficiency sealing component, a line fixing mechanism is arranged on one side of the conductive member, and the line fixing mechanism includes a line fixing plate and a line fixing component inside. The utility model not only improves the signal transmission effect when the side expansion bushing is used, improves the sealing effect when the side expansion bushing is used, but also avoids the phenomenon of busbar loosening when the side expansion bushing is used.

Description

Technical Field

[0001] The utility model relates to the technical field of side expansion sleeves, in particular to a side expansion sleeve. Background Art

[0002] Nowadays, electricity is used more and more widely, and insulating switchgear is also spread all over the streets. Side expansion bushings are mainly used in insulating switchgear. They are used when the side of the switchgear is expanded to carry out multi-branch series connection and cabinet connection, as a side expansion busbar interface.

[0003] The side expansion bushing is generally installed inside the insulating switch cabinet and is easily interfered by the surrounding electromagnetic signals when in use, which can easily affect the signal transmission effect of the side expansion bushing when in use; the side expansion bushing is generally sealed and connected to the insulating switch cabinet through a sealing gasket when in use, but the sealing gasket is prone to aging after a long time, which affects the sealing effect of the side expansion bushing when in use; the side expansion bushing is generally connected to the busbar through a conductive part when in use. If the busbar is accidentally pulled hard during connection, it is easy to cause the busbar to loosen when the side expansion bushing is in use. Utility Model Content

[0004] The utility model aims to provide a side expansion sleeve to solve the problems of poor signal transmission effect, poor sealing effect and easy busbar loosening when the side expansion sleeve is used in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a side expansion sleeve, comprising an insulating shell, a conductive part is installed at the top position inside the insulating shell, a shielding mechanism is arranged at the bottom position inside the insulating shell, the interior of the shielding mechanism includes a connecting component and a shielding net, a high-efficiency sealing mechanism is arranged at the bottom of the insulating shell, the high-efficiency sealing mechanism is composed of a sealing ring and a high-efficiency sealing component, a wire fixing mechanism is arranged on one side of the conductive part, and the interior of the wire fixing mechanism includes a wire fixing plate and a wire fixing component.

[0006] Preferably, a shielding net is provided at the bottom of the interior of the insulating shell, and the shielding net is fixed inside the insulating shell through a connecting component.

[0007] Preferably, a mounting seat is fixed at the bottom position inside the insulating shell, a fixing ring is sleeved on the outer side of the bottom of the shielding net, a fastening bolt is threadedly connected to the surface of the fixing ring, and one end of the fastening bolt passes through the fixing ring and is fastened to the surface thread of the mounting seat.

[0008] Preferably, a high-efficiency sealing component is provided at the bottom of the insulating shell, the outer side of the high-efficiency sealing component is covered with a sealing ring, and the surface of the sealing ring is bonded and fixed to the surface of the insulating shell.

[0009] Preferably, the interior of the high-efficiency sealing component includes an annular groove, a stretch spring and an extrusion ring, the bottom of the insulating shell is provided with an annular groove, the interior of the annular groove is provided with an extrusion ring, and one end of the extrusion ring is fixedly connected to the inner wall of the sealing ring.

[0010] Preferably, a stretch spring is fixed to the bottom of the extrusion ring along the circumferential direction, and one end of the stretch spring is fixedly connected to the surface of the annular groove.

[0011] Preferably, a wire fixing plate is fixed on one side of the surface of the insulating shell, and wire fixing components are installed on both sides of the surface of the wire fixing plate.

[0012] Preferably, the interior of the wire fixing component includes a clamping block, a compression spring, a universal ball and a wire reel, and universal balls are embedded on both sides of the surface of the wire fixing plate, and the universal balls are rotatably connected to the wire fixing plate.

[0013] Preferably, a wire drum is fixed inside the compression spring, clamping blocks are provided on both sides of the wire drum, a compression spring is fixed on one side of the clamping block, and one end of the compression spring is fixedly connected to the inner wall of the universal ball.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the side expansion sleeve not only improves the signal transmission effect when the side expansion sleeve is used, improves the sealing effect when the side expansion sleeve is used, but also avoids the phenomenon of busbar loosening when the side expansion sleeve is used;

[0015] 1. By providing a shielding mechanism, the shielding net is placed inside the insulating housing, and then the fastening bolts on the surface of the fixing ring are rotated to fix the fixing ring and the mounting seat, so that the shielding net is fixed inside the insulating housing. Under the action of the shielding net, electromagnetic shielding can be performed, and it is not easy to interfere with the signal source, so as to realize the anti-interference function of the side expansion casing, thereby improving the signal transmission effect when the side expansion casing is used;

[0016] 2. By providing an efficient sealing mechanism, the insulating housing is installed inside the insulating switch cabinet. At this time, the surface of the insulating switch cabinet is in close contact with the surface of the sealing ring, and the insulating housing and the insulating switch cabinet are sealed. At this time, under the action of the extension spring, a thrust can be generated on the extrusion ring, so that the extrusion ring moves upward along the annular groove, extruding the sealing ring, so that the sealing ring is always in close contact with the insulating switch cabinet, and the insulating housing and the insulating switch cabinet are efficiently sealed, so as to realize the efficient sealing function of the side expansion bushing, thereby improving the sealing effect of the side expansion bushing when it is used;

[0017] 3. The busbar is connected to the conductive part by providing a wire fixing mechanism. Before the connection, the busbar is passed through the clamping blocks inside the wire barrel. At this time, the clamping blocks can be squeezed under the action of the compression spring so that the clamping blocks clamp the busbar. The busbar can be rotated in different directions under the action of the universal ball to realize the clamping function of the side expansion sleeve on the busbar, thereby avoiding the phenomenon of the busbar loosening when the side expansion sleeve is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0019] Figure 2 It is a rear cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of an enlarged side cross-section structure of a wire fixing mechanism of the utility model;

[0021] Figure 4 It is an enlarged structural schematic diagram of the high-efficiency sealing mechanism of the utility model.

[0022] In the figure: 1. insulating shell; 101. conductive part; 2. shielding mechanism; 201. connecting assembly; 2011. fixing ring; 2012. fastening bolt; 2013. mounting seat; 202. shielding net; 3. high-efficiency sealing mechanism; 301. sealing ring; 302. high-efficiency sealing component; 3021. annular groove; 3022. extension spring; 3023. extrusion ring; 4. wire fixing mechanism; 401. wire fixing plate; 402. wire fixing component; 4021. clamping block; 4022. compression spring; 4023. universal ball; 4024. wire reel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] The utility model provides a side expansion casing structure as follows Figure 1 and Figure 2As shown, it includes an insulating shell 1, a conductive member 101 is installed at the top position inside the insulating shell 1, a shielding mechanism 2 is arranged at the bottom position inside the insulating shell 1, the interior of the shielding mechanism 2 includes a connecting component 201 and a shielding net 202, a shielding net 202 is arranged at the bottom position inside the insulating shell 1, the shielding net 202 is fixed to the inside of the insulating shell 1 through the connecting component 201, a mounting seat 2013 is fixed at the bottom position inside the insulating shell 1, a fixing ring 2011 is sleeved on the outer side of the bottom of the shielding net 202, a fastening bolt 2012 is threadedly connected to the surface of the fixing ring 2011, and one end of the fastening bolt 2012 passes through the fixing ring 2011 and is threadedly fastened to the surface of the mounting seat 2013.

[0025] When in use, the shielding net 202 is placed inside the insulating shell 1, and then the fastening bolts 2012 on the surface of the fixing ring 2011 are rotated to fix the fixing ring 2011 and the mounting seat 2013, thereby fixing the shielding net 202 inside the insulating shell 1. Under the action of the shielding net 202, electromagnetic shielding can be performed, and it is not easy to interfere with the signal source, so as to realize the anti-interference function of the side expansion sleeve.

[0026] Furthermore, if Figure 3 As shown, a high-efficiency sealing mechanism 3 is provided at the bottom of the insulating shell 1, and the high-efficiency sealing mechanism 3 is composed of a sealing ring 301 and a high-efficiency sealing component 302. A high-efficiency sealing component 302 is provided at the bottom of the insulating shell 1, and the outer side of the high-efficiency sealing component 302 is covered with a sealing ring 301. The surface of the sealing ring 301 is bonded and fixed to the surface of the insulating shell 1. The interior of the high-efficiency sealing component 302 includes an annular groove 3021, a stretch spring 3022 and an extrusion ring 3023. An annular groove 3021 is provided at the bottom of the insulating shell 1, and an extrusion ring 3023 is provided inside the annular groove 3021. One end of the extrusion ring 3023 is fixedly connected to the inner wall of the sealing ring 301. An extension spring 3022 is fixedly connected to the bottom of the extrusion ring 3023 along the circumferential direction, and one end of the extension spring 3022 is fixedly connected to the surface of the annular groove 3021.

[0027] When in use, the insulating shell 1 is installed inside the insulating switch cabinet. At this time, the surface of the insulating switch cabinet is tightly attached to the surface of the sealing ring 301, and the insulating shell 1 and the insulating switch cabinet are sealed. At this time, under the action of the extension spring 3022, a thrust can be generated on the extrusion ring 3023, so that the extrusion ring 3023 moves upward along the annular groove 3021, squeezing the sealing ring 301, so that the sealing ring 301 is always tightly attached to the insulating switch cabinet, and the insulating shell 1 and the insulating switch cabinet are efficiently sealed to achieve the efficient sealing function of the side expansion sleeve.

[0028] Furthermore, if Figure 4As shown, a wire fixing mechanism 4 is provided on one side of the conductive member 101, and the interior of the wire fixing mechanism 4 includes a wire fixing plate 401 and a wire fixing component 402. The wire fixing plate 401 is fixed on one side of the surface of the insulating shell 1, and the wire fixing components 402 are installed on both sides of the surface of the wire fixing plate 401. The interior of the wire fixing component 402 includes a clamping block 4021, a compression spring 4022, a universal ball 4023 and a wire reel 4024. Universal balls 4023 are embedded on both sides of the surface of the wire fixing plate 401, and the universal ball 4023 is rotatably connected to the wire fixing plate 401. The wire reel 4024 is fixed inside the compression spring 4022, and clamping blocks 4021 are provided on both sides of the interior of the wire reel 4024. A compression spring 4022 is fixed on one side of the clamping block 4021, and one end of the compression spring 4022 is fixedly connected to the inner wall of the universal ball 4023.

[0029] When in use, the busbar is connected to the conductive member 101. Before connection, the busbar is first passed through the clamping blocks 4021 inside the wire barrel 4024. At this time, the clamping blocks 4021 can be squeezed under the action of the compression spring 4022, so that the clamping blocks 4021 clamp the busbar, and the busbar can be rotated in different directions under the action of the universal ball 4023, so as to realize the clamping function of the side expansion sleeve on the busbar.

[0030] Working principle: When in use, first place the shielding net 202 inside the insulating shell 1, then rotate the fastening bolts 2012 on the surface of the fixing ring 2011 to fix the fixing ring 2011 and the mounting seat 2013, so that the shielding net 202 is fixed inside the insulating shell 1. Under the action of the shielding net 202, electromagnetic shielding can be performed, and it is not easy to interfere with the signal source, so as to realize the anti-interference function of the side expansion sleeve, thereby improving the signal transmission effect when the side expansion sleeve is used.

[0031] Subsequently, the insulating housing 1 is installed inside the insulating switch cabinet. At this time, the surface of the insulating switch cabinet is tightly attached to the surface of the sealing ring 301, and the insulating housing 1 and the insulating switch cabinet are sealed. At this time, under the action of the extension spring 3022, a thrust can be generated on the extrusion ring 3023, so that the extrusion ring 3023 moves upward along the annular groove 3021, and squeezes the sealing ring 301, so that the sealing ring 301 is always tightly attached to the insulating switch cabinet, and the insulating housing 1 and the insulating switch cabinet are efficiently sealed, so as to realize the efficient sealing function of the side expansion bushing, thereby improving the sealing effect of the side expansion bushing when it is used.

[0032] The busbar is then connected to the conductive member 101. Before the connection, the busbar is first passed through the clamping blocks 4021 inside the wire barrel 4024. At this time, the clamping blocks 4021 can be squeezed under the action of the compression spring 4022, so that the clamping blocks 4021 clamp the busbar, and the busbar can be rotated in different directions under the action of the universal ball 4023 to realize the clamping function of the side expansion sleeve on the busbar, thereby avoiding the phenomenon of the busbar loosening when the side expansion sleeve is used, and finally completing the use of the side expansion sleeve.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A side expansion bushing, comprising an insulating housing (1), characterized in that: A conductive member (101) is installed at the top position inside the insulating shell (1), a shielding mechanism (2) is arranged at the bottom position inside the insulating shell (1), the interior of the shielding mechanism (2) includes a connecting component (201) and a shielding net (202), a high-efficiency sealing mechanism (3) is arranged at the bottom of the insulating shell (1), the high-efficiency sealing mechanism (3) is composed of a sealing ring (301) and a high-efficiency sealing component (302), a wire fixing mechanism (4) is arranged on one side of the conductive member (101), the interior of the wire fixing mechanism (4) includes a wire fixing plate (401) and a wire fixing component (402).

2. A side expansion casing according to claim 1, characterized in that: A shielding net (202) is provided at the bottom of the interior of the insulating shell (1), and the shielding net (202) is fixed inside the insulating shell (1) via a connecting component (201).

3. A side expansion casing according to claim 2, characterized in that: A mounting seat (2013) is fixed at the bottom position inside the insulating housing (1); a fixing ring (2011) is sleeved on the outer side of the bottom of the shielding net (202); a fastening bolt (2012) is threadedly connected to the surface of the fixing ring (2011); one end of the fastening bolt (2012) passes through the fixing ring (2011) and is threadedly fastened to the surface of the mounting seat (2013).

4. The side expansion casing according to claim 1, characterized in that: The bottom of the insulating shell (1) is provided with a high-efficiency sealing component (302), the outer side of the high-efficiency sealing component (302) is covered with a sealing ring (301), and the surface of the sealing ring (301) is bonded and fixed to the surface of the insulating shell (1).

5. A side expansion casing according to claim 4, characterized in that: The interior of the high-efficiency sealing component (302) includes an annular groove (3021), a stretching spring (3022) and an extrusion ring (3023); the bottom of the insulating housing (1) is provided with an annular groove (3021); the interior of the annular groove (3021) is provided with an extrusion ring (3023); one end of the extrusion ring (3023) is fixedly connected to the inner wall of the sealing ring (301).

6. The side expansion casing according to claim 5, characterized in that: A stretch spring (3022) is fixed to the bottom of the extrusion ring (3023) along the circumferential direction, and one end of the stretch spring (3022) is fixedly connected to the surface of the annular groove (3021).

7. The side expansion casing according to claim 1, characterized in that: A wire fixing plate (401) is fixed on one side of the surface of the insulating housing (1), and wire fixing components (402) are installed on both sides of the surface of the wire fixing plate (401).

8. The side expansion casing according to claim 7, characterized in that: The interior of the wire fixing component (402) includes a clamping block (4021), a compression spring (4022), a universal ball (4023) and a wire drum (4024); universal balls (4023) are embedded on both sides of the surface of the wire fixing plate (401); and the universal balls (4023) are rotatably connected to the wire fixing plate (401).

9. The side expansion casing according to claim 8, characterized in that: A wire drum (4024) is fixed inside the compression spring (4022), clamping blocks (4021) are arranged on both sides of the wire drum (4024), a compression spring (4022) is fixed on one side of the clamping block (4021), and one end of the compression spring (4022) is fixedly connected to the inner wall of the universal ball (4023).

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