Quick opening door mechanism of mine explosion-proof box

Abstract

The utility model discloses a quick -open door mechanism of explosion -proof box, it includes left lower positioning block, left lower sliding block, left limit block, left limit fixed block, left upper positioning block, left upper sliding block, pivot, cam handle, pin shaft, left upper door panel limit block, lower limit block, upper limit block, right limit block, right limit fixed block, explosion -proof box door, interlock limit block, explosion -proof box body, lock screw mounting seat, lock screw, circuit breaker seat, the switch of explosion -proof box door is directly controlled by circuit breaker, avoids the danger of opening explosion -proof box without breaking circuit breaker of ordinary explosion -proof box, makes the use of explosion -proof box more safe through the means of mechanical processing control explosion -proof box body and the explosion -proof box door between the explosion -proof gap, the utility model discloses simple structure can realize quick -open explosion -proof box door, and through circuit breaker can realize power -off before opening door and can only power -on after closing door, simple operation, easy to mass production, more effectively guarantee the safety of explosion -proof box use, will be widely applied in mining industry.

Description

Technical Field

[0001] This utility model belongs to the technical field of the mining industry, and more specifically, relates to a quick-opening mechanism for an explosion-proof box. Background Technology

[0002] Currently, commonly used explosion-proof enclosure doors are mainly fixed by hinges and bolts. Opening and closing these doors requires removing and installing bolts around the enclosure, making the process time-consuming and laborious. Furthermore, the opening and closing of these doors is not controlled by a circuit breaker, which could lead to the door opening without disconnecting the circuit breaker, posing a safety hazard. Additionally, these mechanisms are difficult to implement for convenient and rapid modular manufacturing, hindering the quick mass production of explosion-proof enclosures and resulting in a lack of competitiveness. Therefore, this invention provides a quick-opening door mechanism for explosion-proof enclosures that solves the above problems. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a quick-opening mechanism for explosion-proof boxes, enabling rapid opening of the box door. Furthermore, a circuit breaker allows for power cut-off before opening and power restoration only after closing. This simple and easy-to-manufacture mechanism effectively ensures the safety of the explosion-proof box.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a quick-opening door mechanism for an explosion-proof box, comprising a lower left positioning block, a lower left sliding block, a left limit block, a left limit fixing block, an upper left positioning block, an upper left sliding block, a rotating shaft, a cam handle, a pin, an upper left door panel limit block, a lower limit block, an upper limit block, a right limit block, a right limit fixing block, an explosion-proof box door, an interlocking limit block, an explosion-proof box body, a locking screw mounting base, a locking screw, and a circuit breaker base, characterized in that: the lower left positioning block and the left limit fixing block are installed on the left side of the explosion-proof box body. The explosion-proof enclosure is equipped with a left upper positioning block, a left upper door panel limit block, a right limit fixing block, a locking screw mounting base, and a circuit breaker base on the right side. The explosion-proof enclosure is equipped with a lower limit block on the lower side. The explosion-proof door is equipped with a left lower sliding block, a left limit block, and a left upper sliding block on the left side. The explosion-proof door is equipped with a right limit block and an interlocking limit block on the right side. The explosion-proof door is equipped with an upper limit block on the upper side. The left lower positioning block and the left upper positioning block are equipped with a rotating shaft. The rotating shaft connects the left lower sliding block and the left upper sliding block. The left upper sliding block is connected to the cam handle through a pin. The locking screw mounting base is connected to the locking screw through a threaded hole.

[0005] Furthermore, its working principle is as follows: the opening and closing of the explosion-proof box door is directly controlled by the circuit breaker, avoiding the danger of opening the explosion-proof box without disconnecting the circuit breaker in ordinary explosion-proof boxes; the explosion-proof gap between the explosion-proof box body and the explosion-proof box door is controlled by mechanical processing, so that even if an explosion occurs inside, the sparks inside the box cannot pass through the explosion-proof surface, making the use of the explosion-proof box safer; the cam handle drives the rotating shaft, which in turn drives the door to move up and down and rotate, making the opening and closing of the explosion-proof box door more convenient and faster than that of a bolt-fixed explosion-proof box.

[0006] The quick-opening door mechanism for an explosion-proof box according to this utility model has the following beneficial effects:

[0007] This utility model discloses a quick-opening door mechanism for explosion-proof boxes, which enables quick opening of the explosion-proof box door. It also features a circuit breaker that allows power to be cut off before opening and powered on only after closing. The mechanism is simple to operate and easy to mass-produce, effectively ensuring the safety of the explosion-proof box and will be widely used in the mining industry. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the quick-opening door mechanism of an explosion-proof box installed in the explosion-proof box structure.

[0009] Figure 2 This is a schematic diagram of the quick-opening door mechanism of an explosion-proof box installed in the explosion-proof box structure.

[0010] Figure 3 This is a partially enlarged structural schematic diagram of this utility model. Detailed Implementation

[0011] The technical solution of this utility model will be further explained below with reference to the accompanying drawings.

[0012] like Figure 1 , 2 As shown in Figure 3, a quick-opening door mechanism for an explosion-proof box includes a lower left positioning block 1, a lower left sliding block 2, a left limit block 3, a left limit fixing block 4, an upper left positioning block 5, an upper left sliding block 6, a rotating shaft 7, a cam handle 8, a pin shaft 9, an upper left door panel limit block 10, a lower limit block 11, an upper limit block 12, a right limit block 13, a right limit fixing block 14, an explosion-proof box door 15, an interlocking limit block 16, an explosion-proof box body 17, a locking screw mounting seat 18, a locking screw 19, and a circuit breaker seat 20. The lower left positioning block 1, the left limit fixing block 4, the upper left positioning block 5, and the upper left door panel limit block 10 are installed on the left side of the explosion-proof box body 17. The explosion-proof enclosure 17 has a right limit fixing block 14, a locking screw mounting seat 18, and a circuit breaker seat 20 installed on the right side. The explosion-proof enclosure 17 has a lower limit block 11 installed on the lower side. The explosion-proof enclosure door 15 has a lower left sliding block 2, a left limit block 3, and a higher left sliding block 6 installed on the left side. The explosion-proof enclosure door 15 has a right limit block 13 and an interlocking limit block 16 installed on the right side. The explosion-proof enclosure door 15 has an upper limit block 12 installed on the upper side. The lower left positioning block 1 and the upper left positioning block 5 are fitted with a rotating shaft 7. The rotating shaft 7 connects the lower left sliding block 2 and the upper left sliding block 6. The upper left sliding block 6 is connected to the cam handle 8 through a pin 9. The locking screw mounting seat 18 is connected to the locking screw 19 through a threaded hole.

[0013] Its working principle is that the opening and closing of the explosion-proof box door is directly controlled by the circuit breaker, avoiding the danger of opening the explosion-proof box without disconnecting the circuit breaker in ordinary explosion-proof boxes; the explosion-proof gap between the explosion-proof box body 17 and the explosion-proof box door 15 is controlled by mechanical processing, so that even if an explosion occurs inside, the sparks inside the box cannot pass through the explosion-proof surface, making the use of the explosion-proof box safer; the cam handle 8 drives the rotating shaft 7, which in turn drives the explosion-proof box door 15 to move up and down and rotate, making the opening and closing of the explosion-proof box door 15 more convenient and faster than that of a bolt-fixed explosion-proof box.

[0014] The operating method is as follows: When it is necessary to open the explosion-proof box door 15, the circuit breaker needs to be disconnected. The locking screw 19 disengages from the interlocking limit block 16 and retracts into the opening slot of the circuit breaker seat 20. The cam handle 8 drives the lower left sliding block 2 and the upper left sliding block 6 to move the explosion-proof box door 15 upward, thereby separating the left limit block 3 from the left limit fixing block 4, the right limit block 13 from the right limit fixing block 14, the lower limit block 11 from the explosion-proof box door 15, and the upper limit block 12 from the explosion-proof box body 17. The explosion-proof box door 15 is then rotated to separate it from the explosion-proof box body 17, and the explosion-proof box door 15 is opened. That is, the explosion-proof box door 15 can only be opened after the power is cut off, when the locking screw 19 disengages from the interlocking limit block 16 and retracts into the opening slot of the circuit breaker seat 20; otherwise, the explosion-proof box door 15 cannot be opened. When it is necessary to close the explosion-proof box door 15, the cam handle 8 rotates the cam handle 19 to open the explosion-proof box door 15. The explosion-proof door 15 is driven by the cam handle 8 to move the lower left sliding block 2 and the upper left sliding block 6 upwards and rotate the explosion-proof door 15, thus closing the explosion-proof box 17 and the explosion-proof door 15. The cam handle 8 then drives the lower left sliding block 2 and the upper left sliding block 6 to move the explosion-proof door 15 downwards. Under the action of gravity, the left limit block 3 is locked with the left limit fixing block 4, the right limit block 13 is locked with the right limit fixing block 14, the lower limit block 11 is locked with the explosion-proof door 15, and the upper limit block 12 is locked with the explosion-proof box 17. At this time, the explosion-proof box 17 and the explosion-proof door 15 are closed. If it is necessary to open the circuit breaker, the locking screw 19 needs to disengage from the opening slot of the circuit breaker seat 20 and enter the interlocking limit block 16 hole. Only then can the circuit breaker be opened and the power be supplied. Otherwise, the explosion-proof box cannot be powered on.

[0015] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A quick-opening door mechanism for a mine explosion-proof box, comprising a lower left positioning block, a lower left sliding block, a left limit block, a left limit fixing block, an upper left positioning block, an upper left sliding block, a rotating shaft, a cam handle, a pin, an upper left door panel limit block, a lower limit block, an upper limit block, a right limit block, a right limit fixing block, an explosion-proof box door, an interlocking limit block, an explosion-proof box body, a locking screw mounting base, a locking screw, and a circuit breaker base, characterized in that: The explosion-proof enclosure is equipped with a lower left positioning block, a left limit fixing block, an upper left positioning block, and an upper left door panel limit block on the left side. The explosion-proof enclosure is equipped with a right limit fixing block, a locking screw mounting seat, and a circuit breaker seat on the right side. The explosion-proof enclosure is equipped with a lower limit block on the bottom side. The explosion-proof door is equipped with a lower left sliding block, a left limit block, and an upper left sliding block on the left side. The explosion-proof door is equipped with a right limit block and an interlocking limit block on the right side. The explosion-proof door is equipped with an upper limit block on the top side. The lower left positioning block and the upper left positioning block are equipped with rotating shafts, which connect the lower left sliding block and the upper left sliding block. The upper left sliding block is connected to the cam handle via a pin. The locking screw mounting seat hole connects to the locking screw.

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