Electric meter box

Abstract

The utility model discloses an electric meter box which comprises an electric meter box main body, the electric meter box main body is provided with a plurality of wire fixing devices, each wire fixing device comprises a supporting column, a fixing piece and a wire bunching column, the wire bunching column is arranged in the supporting column, the wire bunching column is provided with a through hole for a wire to pass through, and the fixing piece is arranged on the supporting column. A through hole is formed in the supporting column, a plurality of protruding blocks at equal intervals are evenly distributed on the inner wall of the through hole with a circle point as the axis, a sliding groove is formed in the side wall of the supporting column, the fixing piece is connected to the supporting column in a threaded mode, and the fixing piece is provided with a contraction part capable of moving towards the center of the fixing piece and penetrates through the sliding groove. According to the utility model, the contraction part gradually contracts towards the center of the wire bunching column only by rotating the fixing piece, so that the wire bunching column deforms, forms a clamping force on a wire and is more attached to the surface of the wire, a gap between the wire bunching column and the wire bunching column is reduced, and the fixing piece is ensured to be fixed at a moved position through the elastic piece; the product has the advantages of firm wire fixation, simple operation and good sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electric meter boxes, in particular to an electric meter box. Background Art

[0002] The main function of the meter box is to store the meter, and it is also used to manage and protect electrical equipment. The meter box also has the function of distributing, protecting and controlling circuits, which is crucial for power management inside the house. Every house is equipped with a distribution box to facilitate future inspection and maintenance, as well as to control and protect the lighting fixtures and household appliances in each room.

[0003] When the meter box is connected to the user, the wires are mostly passed directly through the wire holes or tied with cable ties. When the meter box is installed outdoors, rainwater will enter the meter box through the wire holes, which will accelerate the aging of the electrical equipment in the meter box. When the meter box is under maintenance, the wires will produce friction with the inner wall of the wire holes due to differentiation and pulling, which will reduce the service life of the wires. In addition, the connection stability with the electrical equipment will be reduced during the pulling process. Therefore, the applicant has made a useful design and found a solution to the above problems. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional electric meter box design and provide a product with reliable wire fixing, simple operation and good sealing.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] An electric meter box includes an electric meter box body, the electric meter box body is provided with a plurality of wire fixing devices, the wire fixing devices include a support column, a fixing piece, and a wire binding column, the wire binding column is arranged in the support column, the wire binding column is provided with a through hole for the wire to pass through, the inner wall of the through hole is evenly distributed with a circle as the axis and provided with a plurality of equally spaced protrusions, the side wall of the support column is provided with a slide groove, the fixing piece is threadedly connected to the support column, the fixing piece is provided with a contraction part that can move toward the center of the fixing piece, passes through the slide groove, and is arranged between the wire binding column and the support column, and a spring sheet is provided between the support column and the fixing piece and acts on the fixing piece.

[0007] Preferably, a supporting portion and a flange are provided at one end of the support column, and a fixing portion is provided at the other end, and a limiting block is provided between the supporting portion and the fixing portion.

[0008] Preferably, a first sealing ring is provided on the outer wall of the support column, a pressure ring is provided on the outer wall of the support column, and the spring sheet is arranged on the supporting ring.

[0009] Preferably, a supporting portion is provided at the entrance of the slide groove and abuts against the outer wall of the contraction portion.

[0010] Preferably, the contraction portion abuts against any upper or lower end of the slide slot, and the fixing member is provided with a plurality of pushing portions at equal intervals.

[0011] Preferably, the cable tie column abuts against the supporting part and the fixing part respectively, and abutting parts are provided on both sides of the cable tie column and abut against the retracting part. The cable tie column is provided with a yielding groove, and the limiting block is embedded in the yielding groove.

[0012] Preferably, a second sealing ring is provided in the cable tie post, and chamfers are provided at both ends of the protrusion.

[0013] Preferably, the meter box body is provided with a wire inlet hole and a plurality of wire outlet holes, the flange is fixed to the wire inlet hole and the wire outlet hole by screws, and the material of the wire harness column is set to be rubber.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model only needs to rotate the fixing part. As the support part and the root of the shrinkage part get closer, the shrinkage part will gradually shrink toward the center of the cable tie post, so that the shrinkage part applies an inward clamping force to the cable tie post, thereby bundling and fixing the wires in the through hole. In addition, the cable tie post fits the surface of the wire more closely, reducing the gap between the two. The sealing effect between the cable tie post and the wire is further enhanced by the second sealing ring, thereby overcoming the problems raised by the background technology and making the product have the advantages of simple operation and good sealing.

[0017] (2) The utility model increases the friction between the threads of the fixing member and the cable tie rod by applying the elastic force released by the spring sheet to the fixing member, thereby ensuring that the fixing member is fixed in the position after the movement, so that the product has the advantage of firmly fixing the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the internal structure of an electric meter box of the utility model;

[0019] Figure 2 This is a structural schematic diagram of a wire fixing device for an electric meter box according to the utility model;

[0020] Figure 3 This is an exploded view of an electric meter box of the utility model;

[0021] Figure 4 This is a cross-sectional top view of an electric meter box of the utility model;

[0022] Figure 5This is a schematic diagram of the side cross-sectional structure of an electric meter box of the utility model;

[0023] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0024] Reference numerals: 1. Meter box body; 2. Wire fixing device; 3. Support column; 4. Fixing piece; 5. Wire harness column; 6. First sealing ring; 7. Spring piece; 8. Second sealing ring;

[0025] 11. Wire inlet hole; 12. Wire outlet hole;

[0026] 31. slide groove; 32. supporting part; 33. flange; 34. fixing part; 35. limit block; 36. pressure ring;

[0027] 311, support part;

[0028] 41. contraction part; 42. pushing part;

[0029] 51. Through hole; 52. Bump; 53. Interference portion; 54. Gap groove; 55. Chamfer. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0033] Reference example Figures 1 to 5An electric meter box includes an electric meter box body 1, the electric meter box body 1 is provided with a plurality of wire fixing devices 2, the wire fixing devices 2 include a support column 3, a fixing member 4, and a wire binding column 5, the wire binding column 5 is arranged in the support column 3, the wire binding column 5 is provided with a through hole 51 for the wire to pass through, the inner wall of the through hole 51 is evenly distributed with a plurality of equidistant protrusions 52 with a dot as the axis, the side wall of the support column 3 is provided with a slide groove 31, the fixing member 4 is threadedly connected to the support column 3, the fixing member 4 is provided with a contraction portion 41 that can move toward the center of the fixing member 4, passes through the slide groove 31, and is arranged between the wire binding column 5 and the support column 3, and a spring piece 7 is provided between the support column 3 and the fixing member 4, and acts on the fixing member 4;

[0034] It is worth mentioning that a supporting portion 32 and a flange 33 are provided at one end of the support column 3, and a fixing portion 34 is provided at the other end. A limit block 35 is provided between the supporting portion 32 and the fixing portion 34. The supporting portion 32 and the fixing portion 34 prevent the cable tie column 5 from detaching from the support column 3, and the limit block 35 prevents the cable tie column 5 from rotating in the support column 3.

[0035] It is worth mentioning that the outer wall of the support column 3 is provided with a first sealing ring 6, the outer wall of the support column 3 is provided with a pressure ring 36, and the spring piece 7 is arranged on the supporting ring. The first sealing ring 6 strengthens the sealing between the support column 3 and the inlet hole 11 and the outlet hole 12, and the pressure ring 36 provides a support point for the spring piece 7;

[0036] It is worth mentioning that a support portion 311 is provided at the entrance of the chute 31 and abuts against the outer wall of the contraction portion 41 . The support portion 311 serves to guide the contraction portion 41 to contract inwardly.

[0037] It is worth mentioning that the contraction portion 41 abuts against any upper or lower end of the slide groove 31, and the fixing member 4 is provided with a plurality of equally spaced push portions 42. Since the fixing member 4 is threadedly connected to the support column 3, when the fixing member 4 is rotated and tightened, the contraction portion 41 will sink. At this time, the slide groove 31 provides an upper and lower space for the contraction portion 41 to move, and the slide groove 31 also serves to limit the upper and lower movement of the fixing member 4. The push portion 42 facilitates the user to operate the rotation of the fixing member 4 without using tools.

[0038] It is worth mentioning that the cable tie post 5 abuts the supporting portion 32 and the fixing portion 34 respectively, and abutting portions 53 are provided on both sides of the cable tie post 5 and abut the contraction portion 41. The cable tie post 5 is provided with a clearance groove 54, and the limit block 35 is embedded in the clearance groove 54. The friction portion 53 increases the contact area with the contraction portion 41, and the clearance groove 54 cooperates with the limit block 35.

[0039] It is worth mentioning that a second sealing ring 8 is provided in the cable tie post 5, and chamfers 55 are provided at both ends of the protrusion 52. The second sealing ring 8 further strengthens the sealing between the wire and the through hole 51, the protrusion 52 increases the friction with the wire, and the chamfer 55 facilitates the wire to pass through the through hole 51;

[0040] It is worth mentioning that the meter box body 1 is provided with an inlet hole 11 and a plurality of outlet holes 12, and the flange 33 is fixed to the inlet hole 11 and the outlet hole 12 by screws. The material of the wiring harness column 5 is set to rubber, and the flange 33 is fixed to the inlet hole 11 and the outlet hole 12 by screws. The rubber is soft and can better fit the surface of the wire.

[0041] The use principle of the utility model is now described as follows:

[0042] After the wire passes through the through hole 51, the fixing member 4 is rotated. As the support portion 311 and the root of the contraction portion 41 get closer, the contraction portion 41 gradually contracts toward the center of the cable tie post 5, causing the cable tie post 5 to deform so as to fit more closely to the surface of the wire, filling the gap between the wire and the cable tie post 5, and forming a clamping force on the wire, thereby completing the cable tie and fixation of the wire.

[0043] At the same time, the contraction portion 41 moves from the top slide groove 31 to the bottom slide groove 31, and the contraction portion 41 shortens the distance with the pressure ring 36, so that the spring piece 7 stores energy. After the spring piece 7 releases the elastic force, it is given to the fixing part 4, increasing the thread friction between the fixing part 4 and the support column 3, ensuring that the fixing part 4 is fixed in the position after the movement.

[0044] The above design scheme can make the product have the advantages of firm wire fixing, simple operation and good sealing.

[0045] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An electric meter box, comprising an electric meter box body (1), wherein the electric meter box body (1) is provided with a plurality of wire fixing devices (2), characterized in that: The wire fixing device (2) comprises a support column (3), a fixing member (4), and a wire harness column (5). The wire harness column (5) is arranged inside the support column (3). The wire harness column (5) is provided with a through hole (51) for the wire to pass through. The inner wall of the through hole (51) is evenly distributed with a circle as the axis and provided with a plurality of equidistant protrusions (52). The side wall of the support column (3) is provided with a slide groove (31). The fixing member (4) is threadedly connected to the support column (3). The fixing member (4) is provided with a contraction portion (41) that can move toward the center of the fixing member (4), passes through the slide groove (31), and is arranged between the wire harness column (5) and the support column (3). A spring sheet (7) is provided between the support column (3) and the fixing member (4) and acts on the fixing member (4).

2. The electric meter box according to claim 1, characterized in that: One end of the support column (3) is provided with a supporting portion (32) and a flange (33), and the other end is provided with a fixing portion (34), and a limiting block (35) is provided between the supporting portion (32) and the fixing portion (34).

3. The electric meter box according to claim 2, characterized in that: The outer wall of the support column (3) is provided with a first sealing ring (6), the outer wall of the support column (3) is provided with a pressure ring (36), and the spring sheet (7) is arranged on the pressure ring (36).

4. The electric meter box according to claim 3, characterized in that: A supporting portion (311) is provided at the entrance of the sliding groove (31) and abuts against the outer wall of the contraction portion (41).

5. The electric meter box according to claim 3 or 4, characterized in that: The contraction portion (41) abuts against any upper or lower end of the slide groove (31), and the fixing member (4) is provided with a plurality of pushing portions (42) at equal intervals.

6. The electric meter box according to claim 5, characterized in that: The cable tie column (5) abuts against the supporting portion (32) and the fixing portion (34) respectively; abutting portions (53) are provided on both sides of the cable tie column (5) and abut against the retracting portion (41); the cable tie column (5) is provided with a clearance groove (54), and the limiting block (35) is embedded in the clearance groove (54).

7. The electric meter box according to claim 6, characterized in that: A second sealing ring (8) is provided inside the cable tie post (5), and chamfers (55) are provided at both ends of the protrusion (52).

8. The electric meter box according to claim 7, characterized in that: The meter box body (1) is provided with a wire inlet hole (11) and a plurality of wire outlet holes (12); the flange (33) is fixed to the wire inlet hole (11) and the wire outlet hole (12) by screws; and the material of the wire harness column (5) is set to be rubber.

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