Plastic waterproof junction box

Abstract

The utility model discloses a plastic waterproof junction box, comprising a box body and a box cover, the box body is integrally provided with a conjunction block and a first support block, the surface of the first support block is provided with a slot, the surface of the first support block is provided with a locking rod in a penetrating manner, one end of the locking rod extends into the slot, and the other end of the locking rod extends into the slot. A fixing plate is fixedly connected to the other end of the locking rod, a pull ring is installed at the end, away from the locking rod, of the fixing plate, and a spring is arranged between the fixing plate and the first supporting block and located on the outer side of the locking rod in a sleeving mode. In the utility model, a double-sealing structure is arranged, the first-stage sealing is that the wedging block is integrated on the box body to form the convex rib, the convex rib and the wedging groove in the box cover form a labyrinth structure to block moisture permeation, and the second-stage sealing is that the U-shaped silica gel strip is embedded in the wedging groove and is pressed by the box cover when being closed, so that double guarantee is realized; the labyrinth structure is used for physical water blocking, the pre-compressed silica gel strip is used for elastic sealing, dependence on single sealing is reduced, the sealing effect is more ideal, and the waterproof effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical engineering technical field especially relates to plastic waterproof junction box. BACKGROUND

[0002] In the field of electrical engineering, plastic waterproof junction box is widely used in outdoor lighting, communication equipment, industrial control and other scenes, and its core function is to provide physical protection and waterproof sealing for wire connection points. The design of traditional waterproof junction box generally relies on single rubber U-shaped silica gel strip or threaded compression sealing. After long-term use, water seepage may occur due to material aging or uneven pressure. The sealing structure is complex and has insufficient reliability. Although full screw fastening design has good sealing performance, it is time-consuming to open and close, and it is difficult to meet the frequent maintenance requirements.

[0003] Therefore, we propose a plastic waterproof junction box to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a plastic waterproof junction box which is proposed to solve the shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic waterproof junction box comprises a box body and a box cover. The box body is integrally provided with a fitting block and a first supporting block. A slot is formed in the surface of the first supporting block. A locking rod is arranged through the surface of the first supporting block, and one end of the locking rod extends into the slot. A fixed plate is fixed to the other end of the locking rod, and a pull ring is installed at the end of the fixed plate away from the locking rod. A spring is arranged outside the locking rod between the fixed plate and the first supporting block. A fitting groove is formed in the box cover, and a U-shaped silica gel strip is arranged in the fitting groove. The surface of the box cover is integrally provided with a second supporting block, and the surface of the second supporting block is welded with a plug. A locking hole is formed in the surface of the plug.

[0006] Preferably, one end of the locking rod is inserted into the locking hole.

[0007] Preferably, the fitting block is used in cooperation with the fitting groove.

[0008] Preferably, the plug is inserted into the slot.

[0009] Preferably, the U-shaped silica gel strip has a rectangular structure, and the U-shaped silica gel strip is used in cooperation with the fitting groove and the fitting block.

[0010] Preferably, the box cover is used in cooperation with the box body.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The utility model discloses a double sealing structure is set up, primary sealing: the box body is integrated with the fitting block and forms the convex rib, and the fitting groove on the box cover forms the labyrinth structure, blocks moisture penetration, secondary sealing: the U type silica gel strip is embedded in the fitting groove, and is pressed tightly by the box cover when closing, double protection, the labyrinth structure carries out physical water blocking with the precompression silica gel strip and carries out elastic sealing, reduces the dependence on single sealing, and the sealing effect is more ideal, and the waterproof effect is better.

[0013] 2. The utility model discloses a box cover and box body are connected, then utilize the locking rod on the box body and insert in the locking hole on the box cover, can complete the fixing of junction box, convenient operation, and dismounts need not tool, simple structure is reliable. ACCURACY

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0015] Figure 1 The structure diagram of the plastic waterproof junction box provided by the utility model is shown in the drawing.

[0016] Figure 2 The structure diagram of the box body is shown in the drawing.

[0017] Figure 3 The structure diagram of the box cover is shown in the drawing.

[0018] Figure 4 The structure diagram of the U type silica gel strip is shown in the drawing.

[0019] Legend:

[0020] 1, box body;2, box cover;3, first support block;4, slot;5, fitting block;6, locking rod;7, fixed plate;8, pull ring;9, spring;10, second support block;11, fitting groove;12, U type silica gel strip;13, plug;14, locking hole. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiment of the utility model will be clearly and completely described in the following combined with the drawing in the embodiment of the utility model, obviously, the described embodiment only some embodiments of the utility model, not all embodiments. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of protection of the utility model.

[0022] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model by indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please refer to Figures 1-4 The utility model provides a waterproof plastic junction box, including box body 1 and box cover 2, the box body 1 is integratively provided with the fitting block 5 and first support block 3, the surface of first support block 3 is provided with the slot 4, the surface of first support block 3 is provided with locking rod 6, and the one end of locking rod 6 extends into the slot 4, the other end of locking rod 6 is fixedly connected with fixed plate 7, and the one end away from locking rod 6 of fixed plate 7 is installed with pull ring 8, spring 9 is sleeved between fixed plate 7 and first support block 3 and is located at the outside of locking rod 6, the box cover 2 is provided with fitting groove 11, and U type silica gel strip 12 is arranged in fitting groove 11, the surface of box cover 2 is integratively provided with second support block 10, and the surface of second support block 10 is welded with insertion block 13, and the surface of insertion block 13 is provided with locking hole 14.

[0024] In use, the box cover 2 is connected with the box body 1, then the locking rod 6 on the box body 1 is inserted into the locking hole 14 on the box cover 2, so that the junction box is fixed, which is convenient to operate, does not need tools for disassembly and reassembly, and has a simple and reliable structure, wherein the double sealing structure is arranged, the first sealing is that the box body 1 is integrated with the fitting block 5 to form a convex rib, and the fitting groove 11 on the box cover 2 forms a labyrinth structure to block water penetration, and the second sealing is that the U type silica gel strip 12 is embedded in the fitting groove 11 and is pressed tightly by the box cover 2 when closed, so that the physical water blocking of the labyrinth structure and the elastic sealing of the pre-compressed silica gel strip are realized, the dependence on single sealing is reduced, the sealing effect is more ideal, and the waterproof effect is better.

[0025] In the embodiment, one end of the locking rod 6 is inserted into the locking hole 14.

[0026] Specifically, the box cover 2 and the box body 1 can be fixed together.

[0027] In the embodiment, the fitting block 5 is used in cooperation with the fitting groove 11.

[0028] Specifically, the fitting groove 11 on the box cover 2 forms a labyrinth structure to block moisture penetration, thereby achieving waterproof, dustproof and the like.

[0029] In the embodiment, the insertion block 13 is inserted into the insertion groove 4.

[0030] Specifically, the box cover 2 and the box body 1 can be tightly connected together.

[0031] In the embodiment, the U-shaped silica gel strip 12 is in a rectangular structure, and is used in cooperation with the fitting groove 11 and the fitting block 5.

[0032] Specifically, the U-shaped silica gel strip 12 is used in cooperation with the fitting groove 11 and the fitting block 5, and the sealing effect is more ideal.

[0033] In the embodiment, the box cover 2 is used in cooperation with the box body 1.

[0034] Specifically, the waterproof effect is achieved, and the outdoor use is more stable.

[0035] Working principle: in use, the box cover 2 is connected with the box body 1, then the locking rod 6 on the box body 1 is inserted into the locking hole 14 on the box cover 2, and the junction box is fixed, the operation is convenient, and the disassembly does not need tools, the structure is simple and reliable, wherein the double sealing structure is arranged, the first sealing: the fitting block 5 is integrated on the box body 1 to form a convex rib, and the fitting groove 11 on the box cover 2 forms a labyrinth structure to block moisture penetration, the second sealing: the U-shaped silica gel strip 12 is embedded in the fitting groove 11, and is pressed tightly by the box cover 2 when closed, the double protection is achieved, the labyrinth structure is used for physical water blocking, and the pre-compressed silica gel strip is used for elastic sealing, the dependence on single sealing is reduced, the sealing effect is more ideal, and the waterproof effect is better.

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

Claims

1. A plastic waterproof terminal box comprising a box body (1) and a box cover (2), characterized in that, The box body (1) is integrally provided with a fitting block (5) and a first supporting block (3), the surface of the first supporting block (3) is provided with a slot (4), the surface of the first supporting block (3) is provided with a locking rod (6) penetratingly, one end of the locking rod (6) extends into the slot (4), the other end of the locking rod (6) is fixedly connected with a fixed plate (7), the end of the fixed plate (7) away from the locking rod (6) is provided with a pull ring (8), the spring (9) is sleeved outside the locking rod (6) between the fixed plate (7) and the first supporting block (3), the box cover (2) is provided with a fitting groove (11), the fitting groove (11) is provided with a U-shaped silica gel strip (12), the surface of the box cover (2) is integrally provided with a second supporting block (10), the surface of the second supporting block (10) is welded with an insertion block (13), and the surface of the insertion block (13) is provided with a locking hole (14).

2. The plastic waterproof junction box according to claim 1, characterized in that, One end of the locking rod (6) is inserted into the locking hole (14).

3. The plastic waterproof junction box according to claim 1, characterized in that, The fitting block (5) is used in cooperation with the fitting groove (11).

4. The plastic waterproof junction box according to claim 1, characterized in that, The insertion block (13) is inserted into the slot (4).

5. The plastic waterproof junction box according to claim 1, characterized in that, The U-shaped silica gel strip (12) is of a rectangular structure, and is used in cooperation with the fitting groove (11) and the fitting block (5).

6. The plastic waterproof junction box according to claim 1, characterized in that, The box cover (2) is used in cooperation with the box body (1).

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