Explosion-proof shell with good protection effect for mining explosion-proof power box

Abstract

The utility model discloses an explosion-proof shell for a mining explosion-proof power box, which is good in protection effect and comprises a power box body, a control button is movably mounted at the top of the front surface of the power box body, a knob is movably mounted below the control button, and the front surface of the power box body is sleeved with the explosion-proof shell. A fixing frame is fixedly installed on the left side of the power box body, a buffer groove is formed in the fixing frame, a buffer spring is welded to the back face of an inner cavity of the buffer groove, and a buffer plate is fixedly installed at the front end of the buffer spring. According to the utility model, the explosion-proof shell is additionally arranged outside the power box, the outside can be protected on the premise that the use of the power box is not influenced, and the left end of the explosion-proof shell adopts a movable design, so that the explosion-proof shell can be driven to move when the outside is impacted and extruded, and the outside of the power box is subjected to anti-collision buffering; the external part of the power box is prevented from being directly impacted and damaged, and the normal use of the power box is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof shells, in particular to an explosion-proof shell for a mine explosion-proof power supply box with good protection effect. Background Art

[0002] The power box mainly provides operating power for vacuum circuit breakers and other high-voltage switches. The power box uses an input voltage of 220V or 380V, which is rectified by a thyristor voltage regulator and outputs DC. It has the characteristics of outputting DC voltage in multiple gears and adjustable current or AC voltage, and can perform single-open and single-close operations. The working environment underground in a mine is special and accidents are particularly prone to occur, causing personal safety. The requirements for power supply are particularly high. In order to prevent the power supply from generating sparks during use, the mining power box adopts an explosion-proof box to ensure the safety of electricity use underground in the mine, so as to prevent the power supply from catching fire and causing an explosion, causing casualties to equipment and personnel. The shell of the mining power explosion-proof box in the prior art does not have the function of anti-collision protection, and will be damaged when the front of the power box is hit. Moreover, the shell of the power box will directly damage the internal electrical appliances when it is subjected to severe impact, thereby reducing the service life of the power box. Utility Model Content

[0003] The utility model aims to provide an explosion-proof housing for a mining explosion-proof power supply box with good protection effect, which has the advantage of good protection effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof casing for a mining explosion-proof power box with good protective effect, comprising a power box body, a control button movably installed on the top of the front of the power box body, a knob movably installed under the control button, an explosion-proof casing sleeved on the front of the power box body, a fixing frame fixedly installed on the left side of the power box body, a buffer groove is provided inside the fixing frame, a buffer spring is welded on the back side of the inner cavity of the buffer groove, a buffer plate is fixedly installed on the front end of the buffer spring, and the front end of the buffer plate is fixedly installed to the back side of the left end of the explosion-proof casing through a rotating plate.

[0005] As a preferred solution, a rubber pad is fixedly mounted on the middle of the back side of the inner cavity of the buffer groove, and the front end of the rubber pad is fixedly mounted on the back side of the buffer plate.

[0006] As a preferred solution, a fixing seat is fixedly installed on the right side of the power box body, a positioning plate is movably installed inside the fixing seat, and the front end of the positioning plate is fixedly installed on the right side of the explosion-proof housing.

[0007] As a preferred solution, a positioning rod is provided through the interior of the right side of the positioning plate, and the plug-in end of the positioning rod is snap-connected to the interior of the fixing seat.

[0008] As a preferred solution, a terminal post is connected and installed at the bottom of the power box body, and a sealing ring is provided on the inner wall of the terminal post.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] 1. The utility model can protect the outside of the power box without affecting the use of the power box by installing an explosion-proof shell on the outside of the power box, and the left end of the explosion-proof shell adopts a movable design, which can drive the explosion-proof shell to move when the outside is impacted or squeezed, and provide anti-collision buffer for the outside of the power box, thereby avoiding direct impact damage to the outside of the power box and ensuring the normal use of the power box. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a first-view structural stereogram of the utility model;

[0012] Figure 2 This is a structural stereogram of the utility model from a second viewing angle;

[0013] Figure 3 It is a partial structural sectional view of the utility model.

[0014] In the figure: 1. Power box body; 2. Control button; 3. Knob; 4. Explosion-proof shell; 5. Fixed bracket; 6. Buffer slot; 7. Buffer spring; 8. Buffer plate; 9. Rubber pad; 10. Fixed seat; 11. Positioning plate; 12. Positioning rod; 13. Terminal. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3 The utility model discloses an explosion-proof shell for an explosion-proof power supply box for mining with good protective effect, comprising a power supply box body 1, a control button 2 is movably installed on the top of the front of the power supply box body 1, a knob 3 is movably installed under the control button 2, an explosion-proof shell 4 is sleeved on the front of the power supply box body 1, a fixing frame 5 is fixedly installed on the left side of the power supply box body 1, a buffer groove 6 is opened inside the fixing frame 5, a buffer spring 7 is welded on the back of the inner cavity of the buffer groove 6, a buffer plate 8 is fixedly installed on the front end of the buffer spring 7, and the front end of the buffer plate 8 is fixedly installed on the back of the left end of the explosion-proof shell 4 through a rotating plate.

[0017] Through the above technical solution, by adding an explosion-proof shell 4 to the outside of the power box, the outside can be protected without affecting the use of the power box, and the left end of the explosion-proof shell 4 adopts a movable design, which can drive the explosion-proof shell 4 to move when the outside is impacted or squeezed, and provide anti-collision buffer for the outside of the power box, thereby avoiding direct impact and damage to the outside of the power box, thereby ensuring the normal use of the power box.

[0018] A rubber pad 9 is fixedly installed in the middle of the back side of the inner cavity of the buffer groove 6 , and the front end of the rubber pad 9 is fixedly installed on the back side of the buffer plate 8 .

[0019] Through the above technical solution, the rubber pad 9 can increase the buffer support force on the back of the buffer plate 8, and can be used together with the buffer spring 7 to achieve the purpose of buffer support.

[0020] A fixing seat 10 is fixedly installed on the right side of the power box body 1 , a positioning plate 11 is movably installed inside the fixing seat 10 , and a front end of the positioning plate 11 is fixedly installed on the right side of the explosion-proof housing 4 .

[0021] Through the above technical solution, the rear end of the positioning plate 11 can be accommodated by the fixing seat 10, and the right end of the explosion-proof housing 4 can be limited and fixed.

[0022] A positioning rod 12 is provided through the right side of the positioning plate 11 , and the plug-in end of the positioning rod 12 is clamped to the inside of the fixing seat 10 .

[0023] Through the above technical solution, the positioning plate 11 and the fixing seat 10 can be connected through the positioning rod 12, and the firmness of the explosion-proof housing 4 after being installed on the front of the power box is guaranteed.

[0024] The bottom of the power box body 1 is connected and installed with a terminal post 13 , and the inner wall of the terminal post 13 is provided with a sealing ring.

[0025] Through the above technical solution, the external power cord is conveniently connected to the inside of the power box through the terminal 13, and the sealing ring inside the lower end can seal and reinforce the surface of the connected power cord.

[0026] The working principle of the utility model is: the left end of the explosion-proof shell 4 is installed inside the fixing frame 5 by using the buffer plate 8, and the right side of the explosion-proof shell 4 is installed inside the fixing seat 10 by using the positioning plate 11. When the explosion-proof shell 4 is hit from the outside, it will move toward the direction of the power box, and the positioning plate 11 at the right end will move with the explosion-proof shell 4 at this time without breaking. It has deformation performance, and the left side of the explosion-proof shell 4 drives the buffer plate 8 inside the fixing frame 5 and squeezes and supports the buffer spring 7 to buffer and offset the impact force, thereby ensuring the normal use of the power box and improving the external anti-collision performance.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An explosion-proof housing for a mining explosion-proof power supply box with good protection effect, comprising a power supply box body (1), characterized in that: A control button (2) is movably mounted on the top of the front of the power box body (1), a knob (3) is movably mounted below the control button (2), an explosion-proof housing (4) is sleeved on the front of the power box body (1), a fixing frame (5) is fixedly mounted on the left side of the power box body (1), a buffer groove (6) is provided inside the fixing frame (5), a buffer spring (7) is welded on the back of the inner cavity of the buffer groove (6), a buffer plate (8) is fixedly mounted on the front end of the buffer spring (7), and the front end of the buffer plate (8) is fixedly mounted on the back of the left end of the explosion-proof housing (4) through a rotating plate.

2. The explosion-proof housing for a mine explosion-proof power supply box with good protection effect according to claim 1 is characterized in that: A rubber pad (9) is fixedly mounted on the middle portion of the back side of the inner cavity of the buffer groove (6), and the front end of the rubber pad (9) is fixedly mounted on the back side of the buffer plate (8).

3. The explosion-proof housing for a mine explosion-proof power supply box with good protection effect according to claim 1 is characterized in that: A fixing seat (10) is fixedly mounted on the right side of the power box body (1), a positioning plate (11) is movably mounted inside the fixing seat (10), and a front end of the positioning plate (11) is fixedly mounted on the right side of the explosion-proof housing (4).

4. The explosion-proof housing for a mine explosion-proof power supply box with good protection effect according to claim 3 is characterized in that: A positioning rod (12) is provided through the interior of the right side of the positioning plate (11), and the plug-in end of the positioning rod (12) is clamped to the interior of the fixing seat (10).

5. The explosion-proof housing for a mine explosion-proof power supply box with good protection effect according to claim 1 is characterized in that: A terminal post (13) is connected and installed at the bottom of the power box body (1), and a sealing ring is provided on the inner wall of the terminal post (13).

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