Wire outlet structure of distribution box

Abstract

The utility model discloses a distribution box wire outlet structure, relates to the distribution box wire outlet hole plugging technology field, and comprises a connecting assembly, the connecting assembly comprises a polygon top ring, a spacing ring block, a plugging cylinder column, and a polygon locking cylinder, the spacing ring block is fixed on the polygon top ring bottom, the plugging cylinder column is fixed on the spacing ring block bottom end, and the polygon locking cylinder is fixed on the spacing ring block bottom end. The plug-in cylinder penetrates through the wire outlet hole from the inner side of the distribution box to the outer side of the distribution box, the polygonal locking cylinder sleeves the outer side of the wire, and the polygonal locking cylinder is in threaded connection with the plug-in cylinder and is attached to the outer side of the distribution box; the inner side of the plugging cylinder is provided with a sealing assembly, and the sealing assembly is used for achieving the sealing plugging of the wire and the plugging cylinder. According to the utility model, the connection assembly and the sealing assembly are arranged to realize convenient plugging of the threading hole of the distribution box, the outer rubber sleeve and the middle supporting rubber column are matched to realize sealing between the plurality of wires and the plugging cylinder and between the plurality of wires, and the operation is simple and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric box outlet hole plugging, and particularly relates to an outlet structure of a distribution box. BACKGROUND

[0002] The distribution box is a distribution device composed of switch devices, measuring instruments, protective appliances and auxiliary devices assembled in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements. Therefore, an inlet and outlet hole for power lines to pass through needs to be reserved during the manufacturing process. In the use process, there is a gap between the inlet and outlet hole and the power lines. If the gap is not plugged, the distribution box will not be sealed, and water, dust, sundries, insects and mice will enter the distribution box, affecting the safe use of the distribution cabinet. Therefore, plugging the outlet hole of the distribution box is a necessary measure to ensure the stable use of the distribution box. Based on this, the outlet structure of the distribution box is provided. SUMMARY

[0003] The utility model discloses a kind of outlet structures of distribution box, to solve the problem in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: an outlet structure of a distribution box, comprising a connection assembly installed with the outlet hole of the distribution box, the connection assembly comprises a polygonal top ring, a limiting ring block, a plug-in cylinder, a polygonal locking cylinder, the limiting ring block is fixed to the bottom of the polygonal top ring, the plug-in cylinder is fixed to the bottom end of the limiting ring block, the plug-in cylinder is from the inside of the distribution box to the outside of the distribution box through the outlet hole, the polygonal locking cylinder is sleeved on the outside of the power line, and the polygonal locking cylinder is threadedly connected with the plug-in cylinder and is attached to the outside of the distribution box.

[0005] The inside of the plug-in cylinder is provided with a sealing assembly, and the sealing assembly is used to realize the sealing plugging of the power line and the plug-in cylinder.

[0006] The sealing assembly comprises a middle supporting rubber column, an inner arc-shaped groove, an outer rubber sleeve and an outer arc-shaped groove.

[0007] The inner arc-shaped groove is provided with a plurality of inner arc-shaped grooves, and the plurality of inner arc-shaped grooves are annularly formed on the outside of the middle supporting rubber column. The middle supporting rubber column is distributed in the middle of the plurality of power lines and is sleeved with the plurality of power lines through the inner arc-shaped groove.

[0008] The number of the outer arc-shaped groove matches the number of the inner arc-shaped groove, and the plurality of outer arc-shaped grooves are annularly formed on the inside of the outer rubber sleeve. The outer rubber sleeve is sleeved on the outside of the plurality of power lines and is sleeved with the plurality of power lines through the outer arc-shaped groove. The outer rubber sleeve is distributed on the inside of the plug-in cylinder and is tightly attached to the inner wall of the plug-in cylinder. The middle supporting rubber column and the outer rubber sleeve are used to realize the sealing operation between the plurality of power lines and the plug-in cylinder.

[0009] As a further scheme of the utility model: the number of the inner arc-shaped groove and the outer arc-shaped groove matches the number of the electric wire through the wire hole, and the annular hole formed by the inner arc-shaped groove and the outer arc-shaped groove matches the outer diameter of the electric wire.

[0010] As a further scheme of the utility model: the outer side of the outer rubber sleeve is formed with a spiral cut groove, the spiral cut groove penetrates to the inner side of the outer rubber sleeve, and the spiral cut groove is used for making the outer rubber sleeve as a whole in a spiral structure.

[0011] As a further scheme of the utility model: the inner diameter of the limiting ring block is smaller than the inner diameter of the plug-in barrel, the inner wall diameter of the plug-in barrel is in interference fit with the outer wall diameter of the outer rubber sleeve, the bottom of the polygonal locking barrel is formed with an annular notch, and the inner diameter of the annular notch is smaller than the outer diameter of the outer rubber sleeve.

[0012] As a further scheme of the utility model: the outer diameter of the plug-in barrel matches the inner diameter of the wire hole of the distribution box, and the outer diameter of the limiting ring block is larger than the inner diameter of the wire hole of the distribution box.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The convenient plugging of the wire hole of the distribution box can be realized by arranging the connecting assembly and the sealing assembly, the outer rubber sleeve and the middle supporting rubber column can realize the sealing between the multiple electric wires and the plug-in barrel and between the multiple electric wires, and the operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the installation schematic view of the connecting assembly and the distribution box of the utility model;

[0016] Fig. 2 It is another view angle view of the installation of the connecting assembly and the distribution box of the utility model;

[0017] Fig. 3 It is the sectional view of the connecting assembly of the utility model;

[0018] Fig. 4 It is the split schematic view of the connecting assembly and the sealing assembly of the utility model.

[0019] In the drawing: 1, connecting assembly; 101, polygonal top ring; 102, limiting ring block; 103, plug-in barrel; 104, polygonal locking barrel; 2, sealing assembly; 201, middle supporting rubber column; 202, inner arc-shaped groove; 203, outer rubber sleeve; 204, outer arc-shaped groove; 205, spiral cut groove; 3, electric wire; 4, distribution box. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figs. 1-4 In the embodiment of the present application, the outlet structure of the distribution box comprises a connecting assembly 1 installed with the outlet hole of the distribution box 4, the connecting assembly 1 comprises a polygonal top ring 101, a limiting ring block 102, a plug-in cylinder column 103 and a polygonal locking cylinder 104, the limiting ring block 102 is fixed to the bottom of the polygonal top ring 101, the plug-in cylinder column 103 is fixed to the bottom end of the limiting ring block 102, the plug-in cylinder column 103 penetrates through the outlet hole from the inner side of the distribution box 4 to the outer side of the distribution box 4, the polygonal locking cylinder 104 is sleeved on the outer side of the electric wire 3, and the polygonal locking cylinder 104 is threadedly connected with the plug-in cylinder column 103 and adheres to the outer side of the distribution box 4;

[0022] The inner side of the plug-in cylinder column 103 is provided with a sealing assembly 2, and the sealing assembly 2 is used for sealing and plugging the electric wire 3 and the plug-in cylinder column 103;

[0023] The sealing assembly 2 comprises a middle supporting rubber column 201, an inner arc-shaped groove 202, an outer rubber sleeve 203 and an outer arc-shaped groove 204;

[0024] The inner arc-shaped groove 202 is provided with a plurality of inner arc-shaped grooves 202, and the plurality of inner arc-shaped grooves 202 are annularly formed on the outer side of the middle supporting rubber column 201; the middle supporting rubber column 201 is distributed in the middle of the plurality of electric wires 3 and is sleeved with the plurality of electric wires 3 through the inner arc-shaped groove 202;

[0025] The number of the outer arc-shaped groove 204 matches that of the inner arc-shaped groove 202, the plurality of outer arc-shaped grooves 204 are annularly formed on the inner side of the outer rubber sleeve 203, the outer rubber sleeve 203 is sleeved on the outer side of the plurality of electric wires 3 and is sleeved with the plurality of electric wires 3 through the outer arc-shaped groove 204, and the outer rubber sleeve 203 is distributed on the inner side of the plug-in cylinder column 103 and tightly adheres to the inner wall of the plug-in cylinder column 103; the middle supporting rubber column 201 and the outer rubber sleeve 203 are used for realizing the sealing operation between the plurality of electric wires 3 and between the plurality of electric wires 3 and the plug-in cylinder column 103;

[0026] The outer side of the outer rubber sleeve 203 is formed with a spiral cut groove 205, the spiral cut groove 205 penetrates to the inner side of the outer rubber sleeve 203, and the spiral cut groove 205 is used for making the outer rubber sleeve 203 as a whole in a spiral structure;

[0027] The inner diameter of the limiting ring block 102 is smaller than the inner diameter of the insertion sleeve column 103, the inner wall diameter of the insertion sleeve column 103 is in interference fit with the outer wall diameter of the outer rubber sleeve 203, the bottom of the polygonal locking cylinder 104 is formed with an annular notch, and the inner diameter of the annular notch is smaller than the outer diameter of the outer rubber sleeve 203, the outer diameter of the insertion sleeve column 103 matches the inner diameter of the threading hole of the distribution box 4, and the outer diameter of the limiting ring block 102 is greater than the inner diameter of the threading hole of the distribution box 4.

[0028] In the present embodiment, when the threading hole of the distribution box 4 is plugged by connecting the connecting assembly 1 and the sealing assembly 2, the operation method is as follows:

[0029] First, the polygonal locking cylinder 104 is sleeved on the outside of the wire to be threaded through the threading hole, then the wire is threaded through the threading hole to the inside of the distribution box 4, and then the polygonal top ring 101, the limiting ring block 102 and the insertion sleeve 103 are sleeved on the wire to complete the connection, then the insertion sleeve 103 is inserted and penetrates through the threading hole, and then the wire can be connected with the internal electrical devices of the distribution box;

[0030] After the wire is connected, the threading hole can be plugged, and the wire can be fixed at the same time. At this time, the middle supporting rubber column 201 is placed in the middle of the plurality of wires, and the plurality of wires are sequentially clamped on the inside of the plurality of inner arc-shaped grooves 202;

[0031] Then, the spiral outer rubber sleeve 203 is wound around the outside of the plurality of wires, and the plurality of outer arc-shaped grooves 204 are clamped on the outside of the plurality of wires, so that the plurality of wires are wrapped and independent of each other;

[0032] Then, the installed outer rubber sleeve 203 and middle supporting rubber column 201 are pushed close to the insertion sleeve column 103 and inserted into the inside of the insertion sleeve column 103, at the same time, the polygonal locking cylinder 104 is moved close to the insertion sleeve column 103, and the polygonal locking cylinder 104 is screwed and tightened with the insertion sleeve column 103. In the process of tightening the polygonal locking cylinder 104, it will contact and extrude the outer rubber sleeve 203, so that the outer rubber sleeve 203 is further inserted into the inside of the insertion sleeve column 103 (it should be noted that in this process, the outer rubber sleeve 203 is extruded by the insertion sleeve column 103 and is in a contracted state, thereby pressing the wire, and the wire presses the middle supporting rubber column 201, so that the middle supporting rubber column 201 and the wire move together with the outer rubber sleeve 203 at this time);

[0033] Finally, the polygonal locking cylinder 104 is tightly attached to the outside of the distribution box 4, and the limiting ring block 102 is tightly attached to the inside of the distribution box 4, thereby realizing the fixation of the connecting assembly 1 and the distribution box 4, and the sealing of the threading hole of the distribution box 4, and the outer rubber sleeve 203 and the middle supporting rubber column 201 realize the sealing of the plurality of wires and the insertion sleeve column 103 and the plurality of wires.

[0034] Please refer to Figs. 3-4 , the number of inner arc-shaped grooves 202 and outer arc-shaped grooves 204 matches the number of electric wires 3 passing through the wire hole, and the annular hole formed by the inner arc-shaped grooves 202 and the outer arc-shaped grooves 204 matches the outer diameter of the electric wires 3.

[0035] In this embodiment: by setting different numbers of inner arc-shaped grooves 202 and outer arc-shaped grooves 204, the simultaneous fixing and sealing of multiple electric wires 3 of different numbers can be realized. It should be noted that when there is only one electric wire passing through the wire hole, the middle supporting rubber column 201 is not needed, and only the outer arc-shaped groove 204 on the outer rubber sleeve 203 needs to match the diameter of the electric wire.

[0036] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, within the technical range disclosed by the present application, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change, which should be covered within the protection scope of the present application.

Claims

1. An outlet structure of a distribution box comprising a connection assembly (1) installed with an outlet hole of a distribution box (4), characterized in that, The connecting assembly (1) comprises a polygonal top ring (101), a limiting ring block (102), a plug-in cylinder column (103), and a polygonal locking cylinder (104). The limiting ring block (102) is fixed to the bottom of the polygonal top ring (101). The plug-in cylinder column (103) is fixed to the bottom end of the limiting ring block (102). The plug-in cylinder column (103) penetrates through the wire hole from the inside of the distribution box (4) to the outside of the distribution box (4). The polygonal locking cylinder (104) is sleeved on the outside of the electric wire (3). The polygonal locking cylinder (104) is threadedly connected with the plug-in cylinder column (103) and is attached to the outside of the distribution box (4). The inside of the plug-in cylinder column (103) is provided with a sealing assembly (2), which is used to realize the sealing plugging of the electric wire (3) and the plug-in cylinder column (103). The sealing assembly (2) comprises a middle supporting rubber column (201), an inner arc-shaped groove (202), an outer rubber sleeve (203), and an outer arc-shaped groove (204). The inner arc-shaped groove (202) is provided with a plurality of inner arc-shaped grooves (202) which are annularly formed on the outside of the middle supporting rubber column (201). The middle supporting rubber column (201) is distributed in the middle of the plurality of electric wires (3) and is sleeved with the plurality of electric wires (3) through the inner arc-shaped grooves (202). The number of the outer arc-shaped grooves (204) matches that of the inner arc-shaped grooves (202). The plurality of outer arc-shaped grooves (204) are annularly formed on the inside of the outer rubber sleeve (203). The outer rubber sleeve (203) is sleeved on the outside of the plurality of electric wires (3) and is sleeved with the plurality of electric wires (3) through the outer arc-shaped grooves (204). The outer rubber sleeve (203) is distributed on the inside of the plug-in cylinder column (103) and is tightly attached to the inner wall of the plug-in cylinder column (103). The middle supporting rubber column (201) and the outer rubber sleeve (203) are used to realize the sealing operation between the plurality of electric wires (3) and between the plurality of electric wires (3) and the plug-in cylinder column (103).

2. The outlet structure of the distribution box according to claim 1, characterized in that, The number of the inner arc-shaped grooves (202) and the outer arc-shaped grooves (204) matches that of the electric wires (3) penetrating through the wire hole. The annular hole formed by the inner arc-shaped grooves (202) and the outer arc-shaped grooves (204) matches the outer diameter of the electric wire (3).

3. The outlet structure of the distribution box according to claim 1, characterized in that, The outside of the outer rubber sleeve (203) is formed with a spiral cutting groove (205) which penetrates to the inside of the outer rubber sleeve (203). The spiral cutting groove (205) is used to make the outer rubber sleeve (203) have a spiral structure as a whole.

4. The outlet structure of the distribution box according to claim 1, characterized in that, The inner diameter of the limiting ring block (102) is smaller than the inner diameter of the plug-in cylinder column (103). The inner wall diameter of the plug-in cylinder column (103) and the outer wall diameter of the outer rubber sleeve (203) are in interference fit. The bottom of the polygonal locking cylinder (104) is formed with an annular notch, and the inner diameter of the annular notch is smaller than the outer diameter of the outer rubber sleeve (203).

5. The outlet structure of the distribution box according to claim 1, characterized in that, The outer diameter of the plug-in cylinder column (103) matches the inner diameter of the wire hole of the distribution box (4). The outer diameter of the limiting ring block (102) is greater than the inner diameter of the wire hole of the distribution box (4).

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