Nonmetal metering box

Abstract

The utility model discloses a non-metal metering box, which comprises a box body and a cover cap detachably mounted on one side of the box body, four mounting holes distributed in a rectangular shape are arranged on the box body in a penetrating manner, and a first fixing sleeve, a second fixing sleeve and a third fixing sleeve are sequentially arranged on the inner wall of each mounting hole inwards. The first fixing sleeve, the second fixing sleeve and the third fixing sleeve are concentrically arranged, a first dismounting seam is formed between the first fixing sleeve and the box body, a plurality of first connecting pieces are arranged in the first dismounting seam, and a second dismounting seam is formed between the second fixing sleeve and the first fixing sleeve; through the arrangement of the first fixing sleeve, the second fixing sleeve, the third fixing sleeve, the first connecting piece, the second connecting piece, the third connecting piece, the first dismounting seam, the second dismounting seam and the third dismounting seam, the mounting hole can be matched with expansion bolts of different sizes, and it is avoided that a large gap exists between the expansion bolts and the box body; and the box body is not firmly installed.

Description

Technical Field

[0001] This utility model relates to the field of metering box technology, specifically a non-metallic metering box. Background Technology

[0002] A metering box is a special enclosure used to install electricity meters. It is an important device in the power system for electricity metering and data acquisition. It can protect the electricity meter from the influence of the external environment and ensure the accuracy and safety of the metering. According to the material, it can be divided into non-metallic metering boxes and metal metering boxes.

[0003] Existing non-metallic metering boxes are generally fixed to the wall by expansion bolts passing through mounting holes on the box body. However, the size of the mounting holes is fixed. During installation, the expansion bolts carried by the staff may not correspond to the size of the mounting holes. If the expansion bolt size is larger than the mounting hole size, it will be difficult to pass the expansion bolt through the mounting hole for installation. If the expansion bolt size is smaller than the mounting hole size, the expansion bolt and the box body may be displaced, resulting in an unstable installation of the box body. In addition, there is a certain gap between the expansion bolt and the mounting hole, and external moisture can easily enter the box body through the gap, which may lead to malfunctions such as short circuits. Utility Model Content

[0004] The purpose of this utility model is to provide a non-metallic metering box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a non-metallic metering box, comprising a box body and a cover detachably mounted on one side of the box body. The box body has four rectangularly distributed mounting holes. A first fixing sleeve, a second fixing sleeve, and a third fixing sleeve are sequentially arranged on the inner wall of each mounting hole, and the first, second, and third fixing sleeves are concentrically arranged. A first disassembly seam is formed between the first fixing sleeve and the box body, and multiple first connecting pieces are provided inside the first disassembly seam. A second disassembly seam is formed between the second fixing sleeve and the first fixing sleeve, and multiple second connecting pieces are provided inside the second disassembly seam. A third disassembly seam is formed between the third fixing sleeve and the second fixing sleeve, and multiple third connecting pieces are provided inside the third disassembly seam. A support cylinder corresponding to the mounting holes is integrally formed on the inner side wall of the box body, and a cover is threadedly connected to the outer side of the support cylinder.

[0006] In a preferred embodiment of this utility model, the number of the first connectors is greater than the number of the second connectors, and the number of the second connectors is greater than the number of the third connectors.

[0007] As a preferred embodiment of this utility model, a sealing ring is installed on the inner side wall of the cover.

[0008] As a preferred embodiment of this utility model, the outer side wall of the cover is provided with anti-slip protrusions at equal intervals along the circumference.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the setting of a first fixing sleeve, a second fixing sleeve, a third fixing sleeve, a first connector, a second connector, a third connector, a first disassembly seam, a second disassembly seam, and a third disassembly seam, allows the mounting hole to be adapted to expansion bolts of different sizes, avoiding large gaps between the expansion bolts and the box body, which would lead to insecure installation of the box body. Furthermore, the setting of the support cylinder and the cover can block the mounting hole, preventing external moisture from entering the box body through the mounting hole, which would lead to a decrease in the internal insulation performance of the box body and cause faults such as short circuits. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0012] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0013] Figure 4 This is a schematic diagram of the structure of the box body of this utility model;

[0014] Figure 5 This is a schematic diagram of the box body after the cover of this utility model has been removed;

[0015] Figure 6 This utility model Figure 5 Enlarged view of point B in the middle;

[0016] Figure 7 This is a front view of the housing of this utility model;

[0017] Figure 8 This utility model Figure 7 Enlarged view of point C in the middle;

[0018] Figure 9 This is a schematic diagram of the structure of the cover of this utility model.

[0019] In the diagram: 1. Box body; 2. Cover; 3. Mounting hole; 4. First fixing sleeve; 5. Second fixing sleeve; 6. Third fixing sleeve; 7. First disassembly seam; 8. Second disassembly seam; 9. Third disassembly seam; 10. Cover; 11. Support cylinder; 12. Sealing ring; 13. First connector; 14. Second connector; 15. Third connector; 16. Anti-slip protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 9 This utility model provides a technical solution: a non-metallic metering box, including a box body 1 and a cover 2 detachably installed on one side of the box body 1. Four rectangularly distributed mounting holes 3 are provided through the box body 1. A first fixing sleeve 4, a second fixing sleeve 5, and a third fixing sleeve 6 are sequentially arranged on the inner wall of the mounting holes 3. The diameter of the first fixing sleeve 4 is larger than that of the second fixing sleeve 5, and the diameter of the second fixing sleeve 5 is larger than that of the third fixing sleeve 6. One end of the second fixing sleeve 5 is lower than one end of the first fixing sleeve 4, and one end of the third fixing sleeve 6 is lower than one end of the second fixing sleeve 5, such that the second fixing sleeve 5 and the first fixing sleeve 4... A circular groove is formed between the first and second fixing sleeves. A similar circular groove is formed between the second fixing sleeve 5 and the third fixing sleeve 6. This provides a certain degree of restraint for the expansion bolt, allowing it to align with the mounting hole 3. When installing the housing 1, the expansion bolt is aligned with the mounting hole 3. If the diameter of the expansion bolt is the same as that of the third fixing sleeve 6, one end of the expansion bolt is tapped with a tool. The third connector 15 breaks, separating the third fixing sleeve 6 from the second fixing sleeve 5. The expansion bolt can then pass through the mounting hole 3 to fix the housing 1. Similarly, when the diameter of the expansion bolt is the same as that of the second fixing sleeve 5 or the first fixing sleeve 4... Simultaneously, the second fixing sleeve 5 or the first fixing sleeve 4 will detach, preventing a large gap between the expansion bolt and the housing 1, which could lead to an unstable installation of the housing 1. The first fixing sleeve 4, the second fixing sleeve 5, and the third fixing sleeve 6 are concentrically arranged. A first disassembly seam 7 is provided between the first fixing sleeve 4 and the housing 1 to facilitate separation of the first fixing sleeve 4 from the housing 1. Multiple first connecting pieces 13 are provided inside the first disassembly seam 7. A second disassembly seam 8 is provided between the second fixing sleeve 5 and the first fixing sleeve 4 to facilitate separation of the second fixing sleeve 5 from the first fixing sleeve 4. The interior of the seam 8 is provided with multiple second connectors 14. A third disassembly seam 9 is provided between the third fixing sleeve 6 and the second fixing sleeve 5. The third disassembly seam 9 facilitates the separation of the third fixing sleeve 6 and the second fixing sleeve 5. The interior of the third disassembly seam 9 is provided with multiple third connectors 15. The inner side wall of the box body 1 is integrally formed with a support cylinder 11 corresponding to the mounting hole 3. The outer side of the support cylinder 11 is threaded with a cover 10. The support cylinder 11 and the cover 10 cooperate to cover the mounting hole 3, preventing external moisture from entering the box body 1 through the mounting hole 3, which would cause the insulation performance of the box body 1 to decrease and cause faults such as short circuits.

[0022] The number of first connectors 13 is greater than the number of second connectors 14, making the second fixing sleeve 5 easier to knock off than the first fixing sleeve 4, thus preventing the first fixing sleeve 4 from separating from the housing 1 when the second fixing sleeve 5 is knocked off. The number of second connectors 14 is greater than the number of third connectors 15, making the third fixing sleeve 6 easier to knock off than the second fixing sleeve 5, thus preventing the second fixing sleeve 5 from separating from the first fixing sleeve 4 when the third fixing sleeve 6 is knocked off.

[0023] The inner wall of the cover 10 is equipped with a sealing ring 12. When the cover 10 is tightened onto the support cylinder 11, the cover 10 and the support cylinder 11 will squeeze the sealing ring 12, thereby sealing the support cylinder 11 and the cover 10 to improve the waterproof effect of the cover 10 and the support cylinder 11.

[0024] The outer wall of the cover 10 is provided with anti-slip protrusions 16 at equal intervals along the circumference. The anti-slip protrusions 16 are used to increase friction, so that the cover 10 is less likely to slip when it is rotated.

[0025] Specifically, when installing the housing 1, take the expansion bolt and align it with the mounting hole 3. If the diameter of the expansion bolt is the same as that of the third fixing sleeve 6, tap one end of the expansion bolt with a tool. The expansion bolt will squeeze the third fixing sleeve 6, causing the third connecting piece 15 to break. The third fixing sleeve 6 will separate from the second fixing sleeve 5 and be pushed out of the mounting hole 3 by the expansion bolt. Then the expansion bolt can pass through the mounting hole 3 to fix the housing 1. Similarly, when the diameter of the expansion bolt is the same as that of the second fixing sleeve 5, the second fixing sleeve 5 and the third fixing sleeve 6 will fall off at the same time. When the diameter of the expansion bolt is the same as that of the first fixing sleeve 4, the third fixing sleeve 6, the second fixing sleeve 5, and the first fixing sleeve 4 will fall off at the same time. This ensures that the mounting hole 3 is compatible with the expansion bolt, avoiding a large gap between the expansion bolt and the housing 1, which would cause the housing 1 to be not installed securely. After tightening the expansion bolt, screw the cover 10 to the outside of the support cylinder 11 to block the mounting hole 3 and prevent external moisture from entering the housing 1 through the mounting hole 3.

[0026] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-metallic metering box comprising a box body (1) and a cover (2) detachably mounted on one side of the box body (1), four mounting holes (3) being provided through the box body (1) and arranged in a rectangular pattern, characterized in that: The inner wall of the mounting hole (3) is provided with a first fixing sleeve (4), a second fixing sleeve (5) and a third fixing sleeve (6) in sequence, and the first fixing sleeve (4), the second fixing sleeve (5) and the third fixing sleeve (6) are arranged concentrically. A first disassembly seam (7) is provided between the first fixing sleeve (4) and the box body (1). A plurality of first connectors (13) are provided inside the first disassembly seam (7). A second disassembly seam (8) is provided between the second fixing sleeve (5) and the first fixing sleeve (4). A plurality of second connectors (14) are provided inside the second disassembly seam (8). A third disassembly seam (9) is provided between the third fixing sleeve (6) and the second fixing sleeve (5). A plurality of third connectors (15) are provided inside the third disassembly seam (9). A support cylinder (11) corresponding to the mounting hole (3) is integrally formed on the inner side wall of the box body (1). A cover (10) is threadedly connected to the outer side of the support cylinder (11).

2. A non-metallic metering box according to claim 1, characterized in that: The number of the first connector (13) is greater than the number of the second connector (14), and the number of the second connector (14) is greater than the number of the third connector (15).

3. A non-metallic metering box according to claim 1, characterized in that: A sealing ring (12) is installed on the inner wall of the cover (10).

4. A non-metallic metering box according to claim 1, characterized in that: The outer wall of the cover (10) is provided with anti-slip protrusions (16) at equal intervals along the circumference.

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