CN215500052U

CN215500052U - Waterproof flame-proof box

Info

Publication number: CN215500052U
Application number: CN202122379479.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Quantaeye Beijing Technology Co ltd
Current assignee: Quantaeye Beijing Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-01-11
Anticipated expiration: 2031-09-29

Abstract

The application provides a waterproof flame proof case. The waterproof explosion-proof box comprises a box body (7) and a box cover (3). The tank (7) includes a tank portion (72) and a flange (71) connected to the tank portion (72). The box cover (3) can be detachably covered on the box body (7), and the box cover (3) comprises a cover plate part (31) and a joint part (32) connected to the cover plate part (31). The cover plate portion (31) abuts against the flange (71), and an axial sealing ring (6) is arranged between the cover plate portion (31) and the flange (71). An outer peripheral surface (321) of the joint portion (32) abuts against an inner peripheral wall (721) of the tank portion (72), and a radial seal ring (5) is provided between the outer peripheral surface (321) of the joint portion (32) and the inner peripheral wall (721) of the tank portion (72).

Description

Waterproof flame-proof box

Technical Field

The application relates to the field of safety protection equipment, in particular to a waterproof explosion-proof box.

Background

The existing explosion-proof box is mainly applied to flammable and explosive environments such as mines, dust environments and the like. Along with the needs of environmental improvement, the city begins to increase sewage detection demand, traces back the sewage source, therefore increased the electrical equipment who detects sewage in the tube-well, these equipment need install in the explosion-proof box. But because the characteristics of sewage pipe well are: a large amount of methane possibly exists in the well, violent explosion can occur when meeting a fire source, the well is often filled (flood or seawater submerges above the pavement) in a rainy south or coastal area, and the explosion-proof box in the well can be submerged by water, so that the equipment is easily ignited or damaged due to water inlet short circuit. Therefore, a waterproof explosion-proof box is needed to solve the problem. Most explosion suppression boxes on the market can only meet the protection grades of IP66 and IP67, and few explosion suppression boxes can meet the protection grade of IP68 in a general environment, so that the protection requirements at seaside or when flood disasters occur cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve or improve at least one problem mentioned in the background art, the application provides a waterproof flame proof case.

This waterproof flame proof case includes:

a tank including a tank portion and a flange connected to the tank portion;

the case lid, the case lid can be sealed with dismantling in the box, the case lid include the apron and connect in the joint portion of apron, apron butt in the flange, the apron with be provided with the axial sealing washer between the flange, the outer peripheral face butt of joint portion in the internal perisporium of box portion, the joint portion the outer peripheral face with the box portion be provided with radial sealing washer between the internal perisporium.

In at least one embodiment, a groove is provided on the outer peripheral surface of the engagement portion, the radial seal ring is provided in the groove, the cover plate portion is one sidewall of the groove, and the radial seal ring is provided to abut against the cover plate portion.

In at least one embodiment, the cover plate portion includes a threaded hole provided with a sealing joint and a sealing gasket having a straight thread on an outer circumferential surface.

In at least one embodiment, the cover plate portion includes a threaded hole in which a sealing joint having a tapered thread on an outer peripheral surface is disposed.

In at least one embodiment, the inner surface of the cover plate portion is provided with a potting groove, and an orthographic projection of the potting groove on the inner surface of the cover plate portion is provided around an orthographic projection of the threaded hole on the inner surface of the cover plate portion.

In at least one embodiment, the potting groove is filled with a potting adhesive.

In at least one embodiment, the box body comprises a bottom plate portion, the bottom plate portion comprises a bottom plate hole, the cover plate portion comprises a box cover hole, a mounting plate used for providing a fixing point for the electrical equipment is arranged inside the box body, and/or a handle is arranged on the cover plate portion.

In at least one embodiment, a positioning pin is arranged on the flange, a positioning recess is arranged on the box cover, and the positioning pin is in fit connection with the positioning recess.

In at least one embodiment, the outer peripheral surface of the engaging portion and the inner peripheral wall of the case portion have screw threads that can be engaged with each other, and the case cover is attached to the case body by the screw threads.

In at least one embodiment, the flange is provided with a hole, the waterproof explosion-proof box comprises a box cover screw, and the box cover is connected to the box body through the hole and the box cover screw.

The waterproof flame-proof case that this application provided has set up two sealing washers between case lid and box, has better sealed effect, can satisfy the protection requirement of IP68 rank.

Drawings

FIG. 1 shows an axonometric view of a waterproof flameproof box according to an embodiment of the application.

FIG. 2 shows a cross-sectional view of a waterproof flameproof box according to an embodiment of the present application.

Fig. 3 shows a partial enlarged view of fig. 2.

FIG. 4 shows a cross-sectional view of another view of a waterproof flameproof box according to an embodiment of the present application.

FIG. 5 shows an axonometric view of a box body of the waterproof flameproof box according to the embodiment of the application.

FIG. 6 shows an axonometric view of a box cover of the waterproof flame-proof box according to the embodiment of the application.

Description of the reference numerals

1, a handle; 201 sealing the joint; 202 encapsulating the groove; 203 threaded hole; 3, a box cover; 31 a cover plate portion; 311 a box cover hole; 32 a joint portion; 321 outer peripheral surface; 4, a box cover screw; 5, radial sealing rings; 6, axial sealing ring; 7, a box body; 71 a flange; 711 flange surface; 712 holes; 72 a tank portion; 721 inner circumferential wall; 73 a bottom plate portion; 731 floor holes; 81, positioning a pin; 82 positioning recesses; 9 mounting the plate.

Detailed Description

Exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that the detailed description is only intended to teach one skilled in the art how to practice the present application, and is not intended to be exhaustive or to limit the scope of the application.

As shown in FIG. 1, the waterproof flame-proof box provided by the application comprises a box body 7 and a box cover 3. After the electrical equipment is arranged in the box body 7, the box cover 3 can be covered on the box body 7, and waterproof and explosion-proof protection is achieved for the electrical equipment. The material of the box 7 and the box cover 3 may be stainless steel, for example 316 or 316L stainless steel. The electrical device may be an explosive device such as a battery.

As shown in fig. 5, the case 7 includes a flange 71, a case portion 72, and a bottom plate portion 73. Of course, the flange 71, the case portion 72, and the bottom plate portion 73 may be integrally formed. Casing portion 72 is a main body portion of casing 7, and bottom plate portion 73 may serve as a bottom plate of casing 7.

As shown in fig. 1, 5 and 6, the flange 71 is connected to the tank portion 72. The flange 71 is provided with a hole 712, the waterproof explosion-proof box comprises a box cover screw 4, and the box cover 3 can be detachably arranged on the flange 71 through the box cover screw 4 and the hole 712. The flange 71 can be further provided with a positioning pin 81, a corresponding position on the box cover 3 can be provided with a positioning recess 82, the positioning pin 81 corresponds to the positioning recess 82 in position, and the quick positioning of the box cover 3 and the box body 7 can be realized through shape matching connection.

As shown in fig. 2 and 4, a mounting plate 9 may be further disposed in the box 7, and the mounting plate 9 may provide a fixing point for the electrical equipment in the box 7. The mounting plate 9 may be fixed to the bottom plate portion 73.

As shown in fig. 6, the cover 3 includes a cover plate portion 31 and an engagement portion 32. Alternatively, the tank cover plate 31 and the joint portion 32 are integrally formed.

As shown in fig. 4, the cover plate portion 31 is provided with a sealing joint 201, which may be a commercially available explosion-proof clamping sealing joint, and the exterior of the box body may be electrically connected with the electrical equipment inside the box body through the sealing joint 201. The cover 3 further includes a threaded hole 203 for cooperating with the sealing joint 201 to perform a sealing function. A straight thread or a tapered thread may be provided on the outer circumferential surface of the sealing joint 201.

In one embodiment, the outer circumference of the sealing adapter 201 is provided with a straight thread, and a sealing gasket is added to improve the sealing effect, so that the sealing adapter 201 is screwed into the threaded hole 203 by the sealing adapter 201 matching with the sealing gasket (not shown in the figure).

In another embodiment, the outer circumferential surface of the sealing joint 201 is provided with a tapered thread, and the sealing joint 201 can be directly screwed to the threaded hole 203 without providing a sealing gasket, so that self-sealing is realized. Preferably, the inner surface of the cover plate portion 31 is provided with a potting groove 202, and an orthographic projection of the potting groove 202 on the inner surface of the cover plate portion 31 is provided around an orthographic projection of the screw hole 203 on the inner surface of the cover plate portion 31. . After the sealing joint 201 is screwed, a potting adhesive (e.g., epoxy resin) may be filled in the potting groove 202 to achieve a secondary sealing of the sealing joint 201. Alternatively, the depth of the threaded hole 203 may extend into the potting groove 202, or may extend to the upper end of the potting groove 202.

As shown in fig. 1 and 2, the cover plate 31 may be further provided with a handle 1 for easy lifting and placing. The specific shape of the handle is not limited, and may be the shape shown in fig. 1, or may be other shapes, which is not described herein again.

As shown in fig. 2, 3 and 4, the joint portion 32 is connected to the cover plate portion 31. In a state where the case lid 3 is closed to the case 7, the joint portion 32 extends into the case 7, and an outer surface of the joint portion 32 abuts against an inner peripheral wall 721 of the case 7.

In one embodiment of the present application, the joint 32 is a sleeve structure perpendicular to the cover plate 31, and the outer circumferential surface 321 is a cylindrical surface with a circular cross section. Accordingly, the tank portion 72 is cylindrical, and its inner peripheral wall 721 is also cylindrical and its cross section is also circular. The waterproof explosion-proof box with the shape has small integral volume, is matched with the shape of an area where a tube well or a mine and the like are placed, and is convenient to install.

In another embodiment of the present application, the outer peripheral surface 321 of the engagement portion 32 is a tapered surface. Accordingly, the box portion 72 also has an inner peripheral wall 721 having a tapered structure. For example, the inner peripheral wall 721 of the casing portion 72 near the opening of the casing 7 is tapered.

It is to be understood that the shapes of the outer peripheral surface 321 of the joint portion 32 and the inner peripheral wall 721 of the box portion 32 are not limited, and the outer peripheral surface 321 of the joint portion 32 and the inner peripheral wall 721 of the box portion 72 may have a fitting relationship, so as to provide a seal ring between the outer peripheral surface 321 of the joint portion 32 and the inner peripheral wall 721 of the box portion 72. For example, the joint portion 32 is rectangular in cross section, and accordingly, the box portion 72 is also rectangular in cross section at the opening position where the joint portion 32 abuts.

A groove may be provided on the outer surface of the engagement portion 32, and a radial seal ring 5 is provided in the groove, so that the cover 3 is sealed with the case 7 by the radial seal ring 5. Preferably, the groove of the radial seal ring 5 has the cover plate portion 31 as one sidewall of the groove, so that the radial seal ring 5 is disposed to abut against the cover plate portion 31, and abrasion of the radial seal ring 5 during the closing and opening processes of the cover plate 3 is reduced. The flange 71 includes a flange surface 711 facing the cover 3, and a groove is provided on the flange surface 711 of the case 7, for example, at a position where the flange surface 711 is close to (or not close to) the opening of the case 7, and an axial sealing ring 6 is provided in the groove, so that the cover 3 and the case 7 are sealed by the axial sealing ring 6. The waterproof flame-proof box is provided with double sealing rings, the sealing effect is excellent, and the IP68 protection level under the flood full-well state can be realized through experiments.

As shown in fig. 1, 5, and 6, the bottom plate 73 may have an area larger than the cross-sectional area of the box 72, and has a bottom plate hole 731. The cover plate portion 31 may have an area larger than the cross-sectional area of the box portion 72, and the cover plate portion 31 has a box cover hole 311. The waterproof explosion-proof box can be placed in or pulled out of the well by using a traction wire to penetrate through the bottom plate hole 731 and/or the box cover hole 331. Further, the bottom plate hole 731 and/or the box cover hole 331 can be provided with an annular coil, a hook can be arranged at a preset position in the tube well, and the waterproof explosion-proof box can be arranged at the preset position in the tube well through connection of the coil and the hook.

Illustratively, the cover 3 and the case 7 may be screwed together. The outer peripheral surface 321 of the engagement portion 32 may have a screw thread engageable with the inner peripheral wall 721 of the case 7. Of course, in this case, the positioning pin 81 and the positioning recess 82 are not required, and the lid screw 4 may be omitted. Omitting the lid screws 4 increases the possible position of the axial sealing ring 6 on the flange surface 711. While the overall volume of the tank cover 3 can be reduced.

While the foregoing is directed to the preferred embodiment of the present application, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the application.

Claims

1. The utility model provides a waterproof flame proof case which characterized in that, waterproof flame proof case includes:

a tank including a tank portion and a flange connected to the tank portion;

2. The waterproof flameproof box of claim 1, wherein the outer peripheral surface of the joint portion is provided with a groove, the radial seal ring is disposed in the groove, the cover plate portion is one sidewall of the groove, and the radial seal ring is disposed to abut against the cover plate portion.

3. The waterproof flameproof box of claim 1, wherein the cover plate portion comprises a threaded hole, and a sealing joint and a sealing gasket having straight threads on the outer peripheral surface are arranged at the threaded hole.

4. The waterproof flameproof box of claim 1, wherein the cover plate portion comprises a threaded hole, and a sealing joint with a tapered thread on the outer peripheral surface is arranged in the threaded hole.

5. The waterproof flameproof box of claim 3 or 4, wherein the inner surface of the cover plate portion is provided with an encapsulation groove, and an orthographic projection of the encapsulation groove on the inner surface of the cover plate portion is arranged around an orthographic projection of the threaded hole on the inner surface of the cover plate portion.

6. The waterproof flameproof box of claim 5, wherein the potting groove is filled with a potting adhesive.

7. The waterproof flame-proof box according to claim 1, wherein the box body comprises a bottom plate portion, the bottom plate portion comprises a bottom plate hole, the cover plate portion comprises a box cover hole, and/or an installation plate used for providing a fixing point for the electrical equipment is arranged in the box body, and a handle is arranged on the cover plate portion.

8. The waterproof flameproof box of claim 1, wherein the flange is provided with a positioning pin, the box cover is provided with a positioning recess, and the positioning pin is connected with the positioning recess in a matching manner.

9. The waterproof flameproof box of claim 1, wherein the outer peripheral surface of the joint portion and the inner peripheral wall of the box body portion have threads that can be engaged with each other, and the box cover is connected to the box body through the threads.

10. The waterproof flame-proof box according to claim 1, wherein the flange is provided with a hole, the waterproof flame-proof box comprises a box cover screw, and the box cover is connected to the box body through the hole and the box cover screw.