阅读说明：本技术 正压防爆箱体立体框架 (Positive pressure explosion-proof box body three-dimensional frame ) 是由 张�荣 杜立力 封丽 于 2020-05-26 设计创作，主要内容包括：一种防爆箱体立体框架,包括两个平面框和四根立柱,平面框由两根Ⅰ型杆和两根Ⅱ型杆连接而成；Ⅰ型杆第一面上设有直槽；Ⅱ型杆端面上设有圆弧槽；每个平面框的两个Ⅰ型杆第二面与两个Ⅱ型杆第二面相拼合,形成环形顶面或底面；两个平面框上且处于同一侧的两个Ⅱ型杆第一面与两个作为立柱的Ⅰ型杆第二面拼合,形成环形前面或后面；两个平面框上处于同侧的各一个Ⅰ型杆第一面与两个作为立柱的Ⅰ型杆第一面以及与两平面框上各两个Ⅱ型杆端面相拼合,形成环形侧面,Ⅰ型杆上的直槽与Ⅱ型杆端面上的圆弧槽围合成密封槽,在一个环形侧面上设有若干磁块孔。本发明采用两种结构的型杆拼搭由螺钉连接的结构,承受力强,密封效果好,加工、安装都简单。(An explosion-proof box body three-dimensional frame comprises two plane frames and four upright posts, wherein each plane frame is formed by connecting two I-shaped rods and two II-shaped rods; a straight groove is arranged on the first surface of the I-shaped rod; the end surface of the II-shaped rod is provided with an arc groove; the second surfaces of the two I-shaped rods and the second surfaces of the two II-shaped rods of each plane frame are spliced to form an annular top surface or a bottom surface; the first surfaces of the two II-shaped rods on the same side on the two plane frames are spliced with the second surfaces of the two I-shaped rods serving as the stand columns to form an annular front surface or an annular rear surface; the first face of each I-shaped rod on the same side on the two plane frames is spliced with the first faces of the two I-shaped rods serving as the stand columns and the end faces of the two II-shaped rods on the two plane frames to form an annular side face, the straight grooves on the I-shaped rods and the arc grooves on the end faces of the II-shaped rods enclose a synthetic sealing groove, and a plurality of magnet block holes are formed in one annular side face. The invention adopts a structure that the section bars with two structures are spliced and connected by the screws, has strong bearing capacity, good sealing effect and simple processing and installation.)

1. The utility model provides an explosion-proof box space frame, includes two plane frames (10) and connects four stands (20) between two plane frames (10), its characterized in that: the plane frame (10) is formed by connecting two I-shaped rods (E) and two II-shaped rods (F), and the upright posts (20) are I-shaped rods (E); a straight groove (L-1) which penetrates through two ends is arranged on the first surface (E-1) of the I-shaped rod, and a surface which is far away from the straight groove (L-1) and is perpendicular to the first surface (E-1) of the I-shaped rod is a second surface (E-2) of the I-shaped rod; the end face (F-3) of the II-shaped rod is provided with an arc groove (L-2), and two surfaces which are perpendicular to the arc groove (L-2) are a first surface (F-1) of the II-shaped rod and a second surface (F-2) of the II-shaped rod respectively; the two I-shaped rod second surfaces (E-2) of each plane frame (10) are spliced with the two II-shaped rod second surfaces (F-2) to form an annular top surface (2) or an annular bottom surface; two first surfaces (F-1) of the II-shaped rods on the two plane frames (10) and positioned on the same side are spliced with two second surfaces (E-2) of the I-shaped rods serving as the upright posts (20) to form an annular front surface (3) or an annular rear surface; the first surfaces (E-1) of the I-shaped rods on the same side on the two plane frames (10) are spliced with the first surfaces (E-1) of the I-shaped rods serving as the upright posts (20) on the same side and the end surfaces (F-3) of the two II-shaped rods on the two plane frames (10) to form an annular side surface (1); straight grooves (L-1) on first surfaces (E-1) of four I-shaped rods forming each annular side surface (1) and arc grooves (L-2) on end surfaces (F-3) of four II-shaped rods are enclosed to form a sealing groove (a), and one annular side surface of the two annular side surfaces (1) is provided with a plurality of magnet block holes (b).

2. The explosion-proof box space frame of claim 1, wherein: the joint of the first surface (E-1) of the I-shaped rod and the second surface (E-2) of the I-shaped rod is provided with a flange (K), the joint of the first surface (F-1) of the II-shaped rod and the second surface (F-2) of the II-shaped rod, the joint of the first surface (F-1) of the II-shaped rod and the end surface (F-3) of the II-shaped rod and the joint of the second surface (F-2) of the II-shaped rod and the end surface (F-3) of the II-shaped rod are provided with flanges (K), the flanges (K) on the II-shaped rod are connected into a whole, the flanges (K) on the I-shaped rod and the II-shaped rod are spliced, and edge ring bodies are respectively formed on the top surface, the bottom surface, the front surface, the back surface.

3. The explosion-proof box space frame of claim 1, wherein: two I-shaped rods (E) and two II-shaped rods (F) of the plane frame (10) are connected through first screws (4), and the plane frame (10) and the upright columns (20) are connected through second screws (5).

Technical Field

The invention relates to an explosion-proof box body three-dimensional frame.

Background

In dangerous places containing environments such as explosive gas, steam mixture or combustible dust, some critical data on the site need to be recorded in papery by a printer, and the content transmitted by data and instructions on the site can be printed by remote communication at the same time. Because the printer head of the printer can produce high energy of high temperature in the twinkling of an eye, naked printer is worked in dangerous place, can ignite combustible gas and dust. Conventional explosion-proof equipment must be placed in an explosion-proof box to be isolated from outside dangerous places, so that it is considered to place the printer in the explosion-proof box. The utility model of Chinese patent application No. 201220337153.1 introduces a motorcycle packing box body, which is composed of an upper frame, a bottom frame and a plurality of upright posts arranged between the upper frame and the bottom frame, and forms a hollow three-dimensional frame structure; the upper frame is an integral frame, a rectangular structure is formed by bending an upper frame section, and then two ends are connected. All adopt metal construction, form a whole through welding or bolted connection each other. Because the utility model discloses a packing box, do not have the requirement to explosion-proof, its space frame only plays the bearing effect. If welding is adopted for the connection between the components, the workload is large, and the deformation is easy.

Disclosure of Invention

The invention aims to provide a positive pressure explosion-proof box body three-dimensional frame which is simple to mount and is used for a box body with pressure relief overload protection.

In order to achieve the purpose, the invention adopts the following technical scheme: the invention comprises two plane frames and four upright posts connected between the two plane frames, wherein each plane frame is formed by connecting two I-shaped rods and two II-shaped rods, and the upright posts are I-shaped rods; a straight groove penetrating through the two ends is formed in the first surface of the I-shaped rod, and the surface far away from the straight groove and perpendicular to the first surface of the I-shaped rod is a second surface of the I-shaped rod; the end surfaces of the II-shaped rods are provided with arc grooves, and two surfaces which are perpendicular to the arc grooves are respectively a first surface of the II-shaped rod and a second surface of the II-shaped rod; the second surfaces of the two I-shaped rods and the second surfaces of the two II-shaped rods of each plane frame are spliced to form an annular top surface or an annular bottom surface; the first surfaces of the two II-shaped rods on the same side of the two plane frames are spliced with the second surfaces of the two I-shaped rods serving as the stand columns to form an annular front surface or an annular rear surface; the first surfaces of the I-shaped rods on the same side on the two plane frames, the first surfaces of the two I-shaped rods serving as the stand columns on the same side and the end surfaces of the two II-shaped rods on the two plane frames are spliced to form an annular side surface; straight grooves on the first surfaces of the four I-shaped rods forming each annular side surface and arc grooves on the end surfaces of the four II-shaped rods form a sealing ring in a surrounding mode, and a plurality of magnet block holes are formed in one of the two annular side surfaces.

The first face of I type pole and the juncture of the second face of I type pole are equipped with the flange, the juncture of the first face of II type pole and the second face of II type pole terminal surface, the juncture of the second face of II type pole and the second face of II type pole terminal surface all are equipped with the flange, and the flange on II type pole links up mutually integratively, the flange on above-mentioned I type pole and II type pole is pieced together, respectively forms the edge ring body at top surface, bottom surface, preceding, back, both sides face.

Two I-shaped rods and two II-shaped rods of the plane frame are connected through first screws, and the plane frame and the upright posts are connected through second screws.

The invention has the following positive effects: the three-dimensional frame does not adopt welding, the deformation of the traditional frame caused by welding is avoided, and the sealing effect is improved for the box body using the three-dimensional frame. The three-dimensional frame adopts a structure that two types of rods are spliced and connected by screws, so that the three-dimensional frame is strong in bearing capacity and reliable and simple in processing and installation. The box cover of the explosion-proof box body using the three-dimensional frame is magnetically attracted on the three-dimensional frame, when the pressure applied to the box cover by the pressure in the box body cavity is greater than the attraction force of the magnetic attraction, the box cover is partially opened, so that the air leakage point is increased in the box body cavity, the explosion-proof cavity is rapidly decompressed, and the box cover cannot be damaged. Because no welding is needed, the energy is saved.

Drawings

FIG. 1 is an overall perspective view of embodiment 1.

Fig. 2 is a view of a planar frame.

Fig. 3 is a perspective view of an i-shaped bar.

Fig. 4 is an end view of an i-bar.

Fig. 5 is a cross-sectional view of an i-bar.

Fig. 6 is a perspective view of a type ii rod.

Fig. 7 is an end view of a type ii rod.

Fig. 8 is a cross-sectional view of a type ii rod.

The reference numbers are as follows: the magnetic block comprises a plane frame 10, a vertical column 20, an annular side face 1, an annular top face 2, an annular front face 3, a sealing groove a, a magnetic block hole b, a type I rod E, a type II rod F, a flange K, a straight groove L1 and an arc groove L2.

Detailed Description