Explosion-proof junction box

Abstract

The utility model discloses an explosion-proof junction box, which comprises a box body, a box cover arranged on the box body and a plurality of sealing joints arranged on the outer side of the box body, support plates are arranged at four corners of the rear side of the box body, through holes are arranged on the support plates in a penetrating manner, a bracket is arranged on the rear side of the box body, and the box body is detachably arranged on the bracket. Through holes are formed in the top of the support, supporting rods corresponding to the through holes are arranged at the four corners of the front face of the support, contraction parts are arranged on the outer sides of the supporting rods, the top of the support extends outwards to form an extension plate, and a threaded rod is connected to the extension plate in a threaded mode. The box body can be mounted only by mounting the supporting plate on the outer side of the contraction part and rotating the rotary knob, the box body can be dismounted only by rotating the rotary knob to lift the box body upwards when the box body is dismounted, the dismounting and mounting steps of the box body are simplified, holes do not need to be punched again in the wall surface when the box body is replaced, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, specifically an explosion-proof junction box. Background Technology

[0002] Explosion-proof junction boxes are power distribution equipment that has been modified to be explosion-proof. They have explosion-proof functions and can safely distribute power and connect lines in explosive environments. They are usually made of high-strength, corrosion-resistant metal materials to ensure that they can withstand the huge pressure generated by internal explosions without being destroyed.

[0003] Existing explosion-proof junction boxes are generally fixed to the wall with bolts, and the disassembly and assembly process is relatively cumbersome. Especially when replacing a new explosion-proof junction box, it is necessary to drill new holes in the wall, which greatly affects the efficiency of operation and will cause secondary damage to the wall. Utility Model Content

[0004] The purpose of this utility model is to provide an explosion-proof junction box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof junction box, comprising a box body, a box cover mounted on the box body, and multiple sealing joints disposed on the outside of the box body. Support plates are provided at the four corners of the rear side of the box body, and through holes are provided on the support plates. A bracket is provided on the rear side of the box body, and the box body is detachably mounted on the bracket. Support rods corresponding to the through holes are provided at the four corners of the front side of the bracket. A contraction portion is provided on the outer side of the support rods. An extension plate extends outward from the top of the bracket, and a screw is threadedly connected to the extension plate. A knob is provided at the top of the screw. A screw hole that mates with the screw is provided on the top of the box body.

[0006] As a preferred embodiment of this utility model, the bracket has an internal mounting groove, and the front of the bracket has multiple rectangularly distributed empty grooves that are connected to the mounting groove.

[0007] As a preferred embodiment of this utility model, the rear side of the bracket is provided with a fixing plate corresponding to the empty slot, and the fixing plate is provided with a fixing hole through it.

[0008] As a preferred embodiment of this utility model, the end of the support rod away from the bracket is provided with a rounded corner.

[0009] In a preferred embodiment of this utility model, the length of the contraction section is equal to the thickness of the support plate, the diameter of the contraction section is smaller than the diameter of the support rod, and the diameter of the through hole is equal to the diameter of the support rod.

[0010] As a preferred embodiment of this utility model, the inner wall of the screw hole is provided with an internal thread.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a bracket, a retractable part, a support rod, a knob, a screw, and a screw hole, the utility model simplifies the installation process of the box. When installing the box, simply install the support plate on the outside of the retractable part and turn the knob to complete the installation. When disassembling the box, simply turn the knob to lift the box upwards to disassemble it. This simplifies the assembly and disassembly steps of the box. Furthermore, when replacing the box, there is no need to drill new holes in the wall, thus improving operational efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This utility model Figure 1 Exploded view;

[0014] Figure 3 This is a schematic diagram of the structure of the bracket of this utility model;

[0015] Figure 4 This is a schematic diagram of the rear structure of the bracket of this utility model.

[0016] In the diagram: 1. Box body; 2. Box cover; 3. Bracket; 4. Sealing joint; 5. Through hole; 6. Support plate; 7. Screw hole; 8. Knob; 9. Screw; 10. Extension plate; 11. Retractable part; 12. Support rod; 13. Rounded corner; 14. Hollow groove; 15. Mounting groove; 16. Fixing plate; 17. Fixing hole. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1 to 4This utility model provides a technical solution: an explosion-proof junction box, including a box body 1, a box cover 2 installed on the box body 1, and multiple sealing joints 4 arranged on the outside of the box body 1. Support plates 6 are provided at the four corners of the rear side of the box body 1, with through holes 5 through the support plates 6. A bracket 3 is provided on the rear side of the box body 1. The box body 1 is detachably installed on the bracket 3. When installing the box body 1 onto the bracket 3, simply align the through holes 5 with the support rod 12, install the support plates 6 on the outside of the support rod 12, so that the box body 1 is close to one side of the bracket 3. At this time, the support plates 6 move to the outside of the retractable part 11, and the box body 1 will move downwards a short distance under the action of gravity, causing the through holes 5 to be misaligned with the support rod 12, thus preventing the support plates 6 from being aligned with the support rod 12. Then, turn the knob 8 to rotate the screw 9. The screw 9 rotates... The screw moves downward into the screw hole 7 to press against the housing 1, preventing the housing 1 from moving upward, thus realizing the installation of the housing 1. When disassembling the housing 1, unscrew the screw 9 and lift the housing 1 upward so that the through hole 5 is aligned with the support rod 12, and the housing 1 can be removed from the bracket 3. The disassembly and assembly steps are very simple. The four corners of the front of the bracket 3 are provided with support rods 12 corresponding to the through holes 5. The outer side of the support rod 12 is provided with a contraction part 11. The top of the bracket 3 extends outward to form an extension plate 10. The extension plate 10 is threaded with a screw 9. The screw 9 is used to enter the screw hole 7 and press against the housing 1, preventing the housing 1 from moving upward, thus ensuring that the housing 1 is installed firmly. The top of the screw 9 is provided with a knob 8, which makes it easy to rotate the screw 9. The top of the housing 1 is provided with a screw hole 7 that matches the screw 9.

[0019] The bracket 3 has an internal mounting groove 15 and a number of rectangular slots 14 on its front side. The slots 14 are used to avoid bolts that fix the bracket 3 so that the bolts can pass through the fixing holes 17. The slots 14 are connected to the mounting groove 15.

[0020] The bracket 3 has a fixing plate 16 on its rear side that corresponds to the slot 14. The fixing plate 16 has a fixing hole 17 through it, which allows the bracket 3 to be fixed to the wall with bolts.

[0021] The end of the support rod 12 away from the bracket 3 is provided with a rounded corner 13. The rounded corner 13 makes it easier to align the through hole 5 with the support rod 12, so that the support plate 6 can be installed on the outside of the support rod 12.

[0022] The length of the contraction section 11 is equal to the thickness of the support plate 6, so that when the support plate 6 is installed on the outside of the contraction section 11, the box 1 and the bracket 3 will not move back and forth. The diameter of the contraction section 11 is smaller than the diameter of the support rod 12, so that when the support plate 6 moves to the outside of the contraction section 11, the through hole 5 will be misaligned with the support rod 12, so that the support plate 6 cannot be separated from the support rod 12. The diameter of the through hole 5 is equal to the diameter of the support rod 12.

[0023] The inner wall of the screw hole 7 is provided with an internal thread, which cooperates with the screw rod 9, making the connection between the screw rod 9 and the housing 1 more secure, thereby making the installation of the housing 1 more stable.

[0024] Specifically, when installing the housing 1, use bolts to fix the bracket 3 to the wall through the fixing hole 17. Then, take out the housing 1, align the through hole 5 with the support rod 12, install the support plate 6 on the outside of the support rod 12, and push the housing 1 to move it closer to the bracket 3. When the housing 1 is in close contact with the bracket 3, the support plate 6 moves to the outside of the contraction part 11. Since the diameter of the contraction part 11 is smaller than the diameter of the support rod 12, the housing 1 will move downward a short distance under the action of gravity. At this time, the through hole 5 and the support rod 12 are misaligned. This prevents the support plate 6 from being aligned with the support rod 12. Then, the knob 8 is turned to rotate the screw 9. The screw 9 rotates and moves downward into the screw hole 7, pressing against the housing 1 and preventing the housing 1 from moving upward. This allows the housing 1 to be installed. When the housing 1 needs to be replaced, simply unscrew the screw 9, lift the housing 1 upward so that the through hole 5 is aligned with the support rod 12, and the housing 1 can be removed from the bracket 3. Then, a new housing 1 can be taken and installed on the bracket 3. There is no need to drill new holes in the wall, reducing the number of operation steps and improving the efficiency of disassembly and assembly.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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. An explosion-proof junction box, comprising a box body (1), a box cover (2) mounted on the box body (1), and a plurality of sealing joints (4) disposed on the outside of the box body (1), wherein support plates (6) are provided at the four corners of the rear side of the box body (1), and through holes (5) are provided on the support plates (6), characterized in that: The rear side of the box (1) is provided with a bracket (3), the box (1) is detachably installed on the bracket (3), the four corners of the front of the bracket (3) are provided with support rods (12) corresponding to the through holes (5), the outer side of the support rods (12) is provided with a contraction part (11), the top of the bracket (3) extends outward to form an extension plate (10), the extension plate (10) is threaded with a screw (9), the top of the screw (9) is provided with a knob (8), and the top of the box (1) is provided with a screw hole (7) that cooperates with the screw (9).

2. The explosion-proof junction box according to claim 1, characterized in that: The bracket (3) has an internal mounting groove (15), and the front of the bracket (3) has multiple rectangular slots (14) that are connected to the mounting groove (15).

3. The explosion-proof junction box according to claim 2, characterized in that: The bracket (3) is provided with a fixing plate (16) corresponding to the slot (14) on its rear side, and a fixing hole (17) is provided through the fixing plate (16).

4. The explosion-proof junction box according to claim 1, characterized in that: The end of the support rod (12) away from the bracket (3) has a rounded corner (13).

5. The explosion-proof junction box according to claim 1, characterized in that: The length of the contraction section (11) is equal to the thickness of the support plate (6), the diameter of the contraction section (11) is smaller than the diameter of the support rod (12), and the diameter of the through hole (5) is equal to the diameter of the support rod (12).

6. The explosion-proof junction box according to claim 1, characterized in that: The inner wall of the screw hole (7) is provided with internal threads.

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