A three-stage distribution box suitable for construction sites

Abstract

The utility model relates to power distribution box technical field discloses a three -level distribution box suitable for construction site, include: box, and install two groups of guide rails in the box, two groups guide rail respectively install component body and waterproof socket, through the cooperation between the box, guide rail, component fixed establishment and protection structure, through protection structure can cover the connecting end of component, avoid the connecting end of component exposure, and then realize the isolation of electrician operation area, thereby the electrician operation area in three -level distribution box and the operation area of operating personnel are isolated, simultaneously protection structure can avoid the probability of electric shock accident caused by the touch of tool, and protection structure can also avoid the splash touch leading to short -circuit phenomenon of three -level distribution box, improve the security when using three -level distribution box, further improved the service life of three -level distribution box.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, specifically a three-level distribution box suitable for construction sites. Background Technology

[0002] A distribution box is a low-voltage distribution device that assembles switching equipment, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements. According to the "Technical Specification for Safety of Temporary Power Supply at Construction Sites", the principle of three-level power distribution in construction site power supply projects is one machine, one switch, one box, and one leakage protector. The three-level distribution box is an important piece of equipment in the three-level power supply project at the construction site. It is often used for power distribution and control equipment such as welding machine power distribution, lighting power distribution, motor fan power distribution, etc. In the construction environment, the safety of temporary power supply on site is particularly prominent, and the safety hazards of workers carrying three-level distribution boxes by hand are quite serious.

[0003] Traditional three-level distribution boxes, because the electrician's operating area and the worker's operating area are in the same space, may cause workers to accidentally touch the electrician's operating area, leading to the risk of electric shock. Furthermore, because the electrician's operating area is exposed, the three-level distribution box is susceptible to short circuits due to accidental drops of tools or flying debris, resulting in poor overall protection. Therefore, we need to propose a three-level distribution box suitable for construction sites. Utility Model Content

[0004] The purpose of this utility model is to provide a three-level distribution box suitable for construction sites. By setting up a protective structure, the electrician's operation area and the operator's operation area are separated into two independent working areas, which avoids accidents caused by operators accidentally touching the electrician's operation area. At the same time, it can prevent external tools and flying objects from touching the electrician's operation area and causing electric shock and short circuit accidents, thereby improving the safety of the three-level distribution box and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-level distribution box suitable for construction sites, comprising:

[0006] The enclosure, and two sets of guide rails installed inside the enclosure, on which the component bodies and waterproof sockets are respectively installed, and symmetrical component fixing mechanisms for fixing the component bodies and waterproof sockets are provided on the guide rails.

[0007] A protective structure installed inside the enclosure to isolate the cable connection ends of components, thereby isolating the electrical operation area from the operator's operation area.

[0008] Preferably, the protective structure includes two sets of support frames, two sets of locking components, and a protective inner baffle. The two sets of locking components are rotatably mounted on the two sets of support frames, and the protective inner baffle is fastened to the two sets of support frames by the two sets of locking components.

[0009] Preferably, the locking component mainly consists of a limiting knob and a connecting shaft. The support frame has a mounting through hole for the connecting shaft to rotate, and one end of the connecting shaft is fixed to the limiting knob. The side view of the limiting knob is U-shaped.

[0010] Preferably, one side of the inner protective baffle has a slot for two sets of limiting knobs to pass through, and another side of the inner protective baffle has a component mounting hole for mounting the component body or waterproof socket.

[0011] Preferably, the component fixing mechanism includes a slider that is slidably disposed in the guide rail. Side grooves are provided on both sides of the slider, and inserts that abut against the inner wall of the guide rail are slidably inserted in the side grooves. Hexagon socket head cap screws that abut against the two sets of inserts are threaded onto the slider. An inclined surface that abuts against the hexagon socket head cap screws is provided on one side end of both sets of sliders.

[0012] Preferably, an emergency stop switch is installed on one side of the housing, and a retainer is snapped onto the emergency stop switch, with a transparent protective cover rotatably mounted on the retainer to protect the emergency stop switch.

[0013] Preferably, two sets of protruding frames are fixedly connected to the side of the housing adjacent to the emergency stop switch. An outward-folding frame is provided on the outer side of each of the two sets of protruding frames, and a door is rotatably provided on each of the two sets of outward-folding frames. A locking bolt is threadedly connected to one side of each of the two sets of door.

[0014] Preferably, the waterproof socket is positioned directly below the main body of the multiple components, and the housing is provided with a reinforcing beam plate that separates the waterproof socket from the main body of the multiple components.

[0015] Preferably, it also includes a cable fixing mechanism installed at the bottom of the housing. The cable fixing mechanism includes an anti-detachment disc and a locking nut. The lower surface of the anti-detachment disc is fixedly connected to multiple sets of external threaded paddles. The multiple sets of external threaded paddles are arranged at equal angles, and all of the multiple sets of external threaded paddles are threadedly connected to the locking nut.

[0016] Preferably, two sets of waterproof sealing gaskets are fitted on the multiple sets of external threaded paddles, and the two sets of waterproof sealing gaskets respectively abut against the square tray and the locking nut, and the anti-detachment disc is set in the inner cavity of the box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model mainly utilizes the cooperation between the enclosure, guide rail, component fixing mechanism, and protective structure. The protective structure covers all the connection ends of the components, preventing them from being exposed, thereby isolating the electrical operation area. This isolates the electrical operation area within the three-level distribution box from the operator's operation area. Simultaneously, the protective structure reduces the probability of electric shock accidents caused by tool contact and prevents short circuits caused by flying debris, improving the safety of the three-level distribution box during use and further extending its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the box door when it is closed according to this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the box door when it is opened;

[0021] Figure 3 This is a schematic diagram of the electrical operation area structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the protective structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the component fixing mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the cable fixing mechanism of this utility model.

[0025] In the diagram: 1. Cabinet; 2. Emergency stop switch; 3. Card slot; 4. Transparent cover; 5. Cabinet door; 6. Raised frame; 7. Outward-folding frame; 8. Guide rail; 9. Component body; 10. Waterproof socket; 11. Component fixing mechanism; 111. Slider; 112. Hex socket head cap screw; 113. Side groove; 114. Insert block; 115. Angled surface; 12. Protective structure; 121. Support frame; 122. Locking element; 1221. Limit knob; 1222. Coupling shaft; 123. Protective inner baffle; 1231. Slotted groove; 1232. Component mounting hole; 13. Cable fixing mechanism; 131. Anti-detachment disc; 132. External threaded lever; 133. Locking nut; 134. Waterproof sealing gasket; 14. Locking bolt. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-6 This utility model provides a technical solution: a three-level distribution box suitable for construction sites, comprising:

[0028] The enclosure 1, and two sets of guide rails 8 installed inside the enclosure 1. Component bodies 9 and waterproof sockets 10 are respectively installed on the two sets of guide rails 8. Component fixing mechanisms 11 for fixing the component bodies 9 and waterproof sockets 10 are symmetrically arranged on the guide rails 8.

[0029] A protective structure 12 is installed inside the enclosure 1 to isolate the cable connection ends of the components, thereby isolating the electrical operation area from the operator's operation area.

[0030] In this embodiment, the protective structure 12 includes two sets of support frames 121, two sets of locking members 122, and a protective inner baffle 123. The two sets of locking members 122 are rotatably mounted on the two sets of support frames 121, and the protective inner baffle 123 is fastened to the two sets of support frames 121 by the two sets of locking members 122. The support frames 121 can support the protective inner baffle 123, thereby facilitating the installation of electronic components and leaving a certain space between the protective inner baffle 123 and the housing 1. At the same time, the locking members 122 can be used to quickly disassemble and assemble the protective inner baffle 123, which is convenient for electricians' maintenance work and improves practicality.

[0031] In a further preferred embodiment, the locking member 122 mainly consists of a limiting knob 1221 and a connecting shaft 1222. The support frame 121 has a mounting through hole for the connecting shaft 1222 to rotate, and one end of the connecting shaft 1222 is fixed to the limiting knob 1221. The side view of the limiting knob 1221 is U-shaped. The limiting knob 1221 can be rotated 360 degrees through the connecting shaft 1222 on the limiting knob 1221. Both ends of the connecting shaft 1222 are provided with limiting rings, which can prevent the position of the connecting shaft 1222 from moving, ensuring that the limiting knob 1221 can stably limit the inner protective baffle 123 and improve the stability of the installation of the inner protective baffle 123.

[0032] Furthermore, one side of the inner protective baffle 123 is provided with a slot 1231 through which two sets of limiting knobs 1221 pass. The other side of the inner protective baffle 123 is provided with a component mounting hole 1232 for mounting the component body 9 or the waterproof socket 10. The component mounting hole 1232 is slotted according to the number of component bodies 9 to be installed, so that the component mounting hole 1232 corresponds to the number of component bodies 9, reducing the exposed range of the cable connection end of the component body 9. At the same time, by rotating the limiting knob 1221 through the slot 1231, the inner protective baffle 123 can be fixed on the support frame 121. The operation is simple and convenient for electricians' maintenance work.

[0033] Preferably, the component fixing mechanism 11 includes a slider 111 slidably disposed in the guide rail 8. Side grooves 113 are provided on both sides of the slider 111, and inserts 114 that abut against the inner wall of the guide rail 8 are slidably inserted in the side grooves 113. Hexagon socket bolts 112 that abut against the two sets of inserts 114 are threadedly connected to the slider 111. One end of each set of sliders 111 is provided with a bevel 115 that abuts against the hexagon socket bolts 112. After the component body 9 is installed, the slider 111 is inserted into the guide rail 8, and the hexagon socket bolts 112 are rotated by an Allen wrench so that the end of the hexagon socket bolts 112 abuts against the bevel 115 of the two sets of inserts 114, thereby moving the two sets of inserts 114 away from each other, and thus making the end of the inserts 114 press against the inner wall of the guide rail 8, thereby securing the slider 111 and completing the installation of the component body 9, avoiding loosening or displacement of the component due to vibration, impact or external force.

[0034] For example, in a vibrating environment at a construction site, the component fixing mechanism 11 can ensure that components such as circuit breakers and contactors are always kept in the correct position, avoiding poor contact or short circuit faults caused by loose components.

[0035] In addition, an emergency stop switch 2 is installed on one side of the housing 1. A bracket 3 is snapped onto the emergency stop switch 2, and a transparent protective cover 4 is rotatably installed on the bracket 3 to protect the emergency stop switch 2.

[0036] Because there are many electrical devices on the construction site, such as cutting machines and welding machines, they may cause dangers during operation due to sudden failures (such as motor short circuits or equipment overloads) or operational errors (such as accidentally touching control switches), such as equipment loss of control, flying mechanical parts causing injury, and electrical fires. With the setting of emergency stop switch 2, the emergency stop switch 2 can cut off the circuit controlled by the entire box 1 at the first time, so that the equipment stops running quickly, avoids the accident from escalating further, and minimizes the risk of personal injury and property loss.

[0037] Meanwhile, the construction site environment is complex and may be affected by external factors (such as lightning strikes or faults in nearby high-voltage lines) or internal factors (such as aging electrical lines or damaged insulation), which may lead to emergencies such as leakage, smoke, or fire in the equipment. The emergency stop switch 2 provides operators with a fast and effective emergency measure, which can quickly cut off the power supply in an emergency to prevent electric shock and fire accidents.

[0038] It is worth noting that two sets of protruding frames 6 are fixedly connected to the side of the enclosure 1 adjacent to the emergency stop switch 2. Both sets of protruding frames 6 have outward-folding frames 7 on their outer sides, and both sets of outward-folding frames 7 are rotatably equipped with enclosure doors 5. One side of both sets of enclosure doors 5 is threaded with locking bolts 14. By screwing the locking bolts 14 into the gap between the outward-folding frames 7 and the enclosure 1, the enclosure doors 5 can be restricted, thereby preventing accidental opening after the enclosure doors 5 are closed and improving the efficiency of opening and closing the enclosure doors 5.

[0039] Specifically, the waterproof socket 10 is located directly below the multi-component body 9, and the box 1 is provided with a reinforcing beam plate that separates the waterproof socket 10 and the multi-component body 9. The reinforcing beam plate (not shown in the figure) can improve the overall strength of the box 1, thereby increasing the service life of the three-level distribution box.

[0040] In another preferred embodiment, a cable fixing mechanism 13 is also included, which is installed at the bottom of the housing 1. The cable fixing mechanism 13 includes an anti-detachment disc 131 and a locking nut 133. Multiple sets of external threaded paddles 132 are fixedly connected to the lower surface of the anti-detachment disc 131. The multiple sets of external threaded paddles 132 are arranged at equal angles and are threadedly connected to the locking nut 133. The locking nut 133 can make the multiple sets of external threaded paddles 132 converge inward, thereby facilitating the fastening of the cable. The locking nut 133 can withstand a certain amount of tension, torque and vibration, preventing the cable from loosening or breaking due to external forces (such as dragging or equipment vibration).

[0041] Finally, two sets of waterproof sealing washers 134 are fitted on the multiple sets of external threaded paddles 132. The two sets of waterproof sealing washers 134 abut against the square tray and the locking nut 133 respectively. The anti-detachment plate 131 is set in the inner cavity of the box 1. By setting the waterproof sealing washers 134, the wear and aging of the cable and the internal components of the box 1 can be reduced, the failure rate caused by environmental factors can be reduced, and the service life of the equipment can be extended.

[0042] In use, the inner protective baffle 123 of the protective structure 12 can isolate the electrician's operating area from the operator's operating area, thereby preventing the operator from connecting to electricity privately and improving the electrical safety of the construction site. At the same time, the inner protective baffle 123 can prevent the operator from accidentally touching the equipment with tools or being touched by external splashes, reducing the risk of electric shock and preventing short circuits. The emergency stop button can cut off the power supply immediately when electrical equipment fails on the construction site, reducing the harm of accidents, and can quickly cut off the power supply when the equipment leaks electricity, smokes, or catches fire, thereby preventing electric shock and fire accidents.

[0043] 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 three-phase distribution box suitable for use on a construction site, characterised in that, include: The enclosure, and two sets of guide rails installed inside the enclosure, on which the component bodies and waterproof sockets are respectively installed, and symmetrical component fixing mechanisms for fixing the component bodies and waterproof sockets are provided on the guide rails. A protective structure installed inside the enclosure to isolate the cable connection ends of components, thereby isolating the electrical operation area from the operator's operation area.

2. A three-stage distribution box for use on a construction site according to claim 1, wherein: The protective structure includes two sets of support frames, two sets of locking components, and a protective inner baffle. The two sets of locking components are rotatably mounted on the two sets of support frames, and the protective inner baffle is fastened to the two sets of support frames by the two sets of locking components.

3. A three stage distribution box suitable for use on construction sites according to claim 2 wherein: The locking component mainly consists of a limiting knob and a connecting shaft. The support frame has a mounting through hole for the connecting shaft to rotate, and one end of the connecting shaft is fixed to the limiting knob. The side view of the limiting knob is U-shaped.

4. A three stage distribution box suitable for use on construction sites according to claim 3 wherein: One side of the inner protective baffle has a slot for two sets of limiting knobs to pass through, and the other side of the inner protective baffle has a component mounting hole for mounting the component body or waterproof socket.

5. A three stage distribution box suitable for use on construction sites according to claim 4 wherein: The component fixing mechanism includes a slider that is slidably disposed in the guide rail. Side grooves are provided on both sides of the slider, and inserts that abut against the inner wall of the guide rail are slidably inserted in the side grooves. Hexagon socket head cap screws that abut against the two sets of inserts are threaded onto the slider. An inclined surface that abuts against the hexagon socket head cap screws is provided on one side end of both sets of sliders.

6. A three stage distribution box suitable for use on a construction site according to claim 5 wherein: An emergency stop switch is installed on one side of the housing. The emergency stop switch is fitted with a retainer, and a transparent protective cover is rotatably mounted on the retainer to protect the emergency stop switch.

7. A three stage distribution box suitable for use on construction sites according to claim 5 wherein: Two sets of protruding frames are fixedly connected to the side of the enclosure adjacent to the emergency stop switch. An outward-folding frame is provided on the outer side of each set of protruding frames, and a door is rotatably provided on each set of outward-folding frames. A locking bolt is threadedly connected to one side of each set of door.

8. A three stage distribution box suitable for use on a construction site according to claim 7 wherein: The waterproof socket is located directly below the main body of the multiple components, and the housing is provided with a reinforcing beam plate that separates the waterproof socket from the main body of the multiple components.

9. A three stage distribution box suitable for use on a construction site according to claim 8 wherein: It also includes a cable fixing mechanism installed at the bottom of the housing. The cable fixing mechanism includes an anti-detachment disc and a locking nut. The lower surface of the anti-detachment disc is fixedly connected to multiple sets of external threaded paddles. The multiple sets of external threaded paddles are arranged at equal angles, and all of the multiple sets of external threaded paddles are threadedly connected to the locking nut.

10. A three stage distribution box suitable for use on a construction site according to claim 9 wherein: Two sets of waterproof sealing gaskets are fitted on the multiple sets of external threaded tweezers. The two sets of waterproof sealing gaskets abut against the square tray and the locking nut, respectively. The anti-detachment disc is set in the inner cavity of the box.

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