CN212628817U

CN212628817U - Explosion-proof shell

Info

Publication number: CN212628817U
Application number: CN202021666720.9U
Authority: CN
Inventors: 尹金亮
Original assignee: Beijing Rentong Yongsheng Machinery Equipment Co ltd
Current assignee: Beijing Rentong Yongsheng Machinery Equipment Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-02-26
Anticipated expiration: 2030-08-12

Abstract

The utility model relates to a casing processing technology field specifically discloses an explosion-proof casing. The mounting structure comprises an outer shell, an upper cover body, a lower cover body and a fastener, wherein the outer shell is provided with an upper opening and a lower opening, a mounting cavity is arranged in the shell, a fixing table for mounting an electrical component is arranged in the mounting cavity, a mounting bracket is arranged on the outer vertical surface of the outer shell, the edge of the opening extends outwards to form a mounting surface, the front edge of the mounting surface is provided with a fastening mounting hole, the edges of two sides are provided with clamping grooves, and the rear edge of the mounting surface is provided; the upper cover body and the lower cover surface are respectively provided with an installation through hole, a clamping piece and an insertion piece, after the upper cover body, the lower cover body and the outer shell are installed, the installation through hole is overlapped with the fastening installation hole, the clamping piece is clamped in the clamping groove, the insertion piece is clamped in the slot, and the fastening piece penetrates through the installation through hole and is clamped in the fastening installation hole. The utility model provides a pair of explosion-proof shell, simple structure, low in production cost, later stage dismouting maintenance convenience are applicable to very much current electrical equipment's installation protection.

Description

Explosion-proof shell

Technical Field

The utility model relates to a casing processing technology field specifically is an explosion-proof casing.

Background

The explosion-proof electrical equipment is mainly applied to dangerous places such as inflammable and explosive places and is an outer shell for mounting various electrical components.

Through fastening bolt fixed connection between most explosion-proof housing and the lid in the existing market, however adopt bolted connection then to need set up a plurality of screw holes in the casing, adopt die-casting one shot forming usually to the explosion-proof housing of current aluminum alloy or other materials, receive the casing shape, the influence of factors such as trompil position, be difficult to replace the manual work through automation equipment such as machines and carry out the trompil of casing, it is higher to lead to the production cost of labor, low efficiency, and to the installation and the maintenance of casing, bolted connection needs use tools can go on, the problem of later maintenance's with high costs and inefficiency has been caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides an explosion-proof casing, simple structure, low in production cost, later maintenance are convenient, are applicable to the installation protection of the present overwhelming majority of electrical equipment very much.

In order to achieve the above object, the utility model particularly provides the following technical scheme: an explosion-proof shell comprises an outer shell body, an upper cover body, a lower cover body and a fastener, wherein the outer shell body is provided with an upper opening and a lower opening, an installation cavity is arranged in the shell, a fixing table used for installing an electrical component is arranged in the installation cavity, the fixing table is made of elastic metal and provided with an installation hole with internal threads, an installation support is arranged on the outer vertical surface of the outer shell body, and a U-shaped installation notch is formed in the installation support;

the edge of the opening of the outer shell extends outwards to form a mounting surface, the front edge of the mounting surface is provided with a fastening mounting hole, the edges of two sides are provided with clamping grooves, and the rear edge is provided with a slot and a guide groove;

the upper cover body and the lower cover body are identical in structure, installation through holes, clamping pieces and inserting pieces are arranged on the surfaces of the upper cover body and the lower cover body, the installation through holes are overlapped with the fastening installation holes after the upper cover body, the lower cover body and the outer shell are installed, the clamping pieces are clamped in the clamping grooves, the inserting pieces are clamped in the slots, and the fastening pieces penetrate through the installation through holes and are clamped in the fastening installation holes.

The surfaces of the upper cover body and the lower cover body are provided with sealing rings surrounding the opening of the outer shell, and the sealing of the cover body and the outer shell can be completed by conventional technical means in the field, which is not described in detail herein.

Furthermore, a lock groove is formed in the fastening mounting hole, a lock tongue is elastically connected in the lock groove, and preferably, the structure of the lock tongue elastically connected in the lock groove is a plurality of springs; the part of the lock tongue protruding out of the lock groove is cylindrical, the bottom of the lock tongue is a plane clamping end, and the top of the lock tongue is a conical passing end.

Furthermore, the fastener comprises twist grip, nut, cylinder, set up the cavity that holds the spring bolt on the cylinder, cavity bottom and cylinder form the locking end.

Furthermore, a convex curved elastic sheet is arranged at the bottom of the nut along the direction of the column; the fastener can be locked from the vertical direction when the fastener is clamped, and the fastener is prevented from shaking.

Through adopting above-mentioned technical scheme, place the lid on outer casing opening installation face, make both sides fastener and back edge plug-in components insert respectively the draw-in groove entry and guide way in, then promote the lid to the rear, make the fastener block enter the draw-in groove, the plug-in components inject the slot in, then insert the fastening mounting hole with the fastener, rotatory fastener makes the spring bolt pop out, the chucking plays the function of locking in the fastener cavity, the installation of completion lid, for the installation of ordinary bolted connection mode, greatly reduced manual operation's work load, improved work efficiency.

Therefore, the utility model provides a casing, overall structure is simple, low in production cost, efficient, installation and dismantlement easy operation during the use, and later maintenance is convenient, is applicable to the installation protection of the present overwhelming majority of electrical equipment very much, has certain beneficial effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a front view of an outer housing in an embodiment of the invention;

fig. 3 is a top view of an outer housing in an embodiment of the invention;

FIG. 4 is an internal transverse cross-sectional view of a fastening mounting hole in an embodiment of the present invention;

FIG. 5 is an internal longitudinal cross-sectional view of a fastening mounting hole in an embodiment of the present invention;

FIG. 6 is a schematic structural view of a fastener according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating the position relationship between the fastening member and the latch bolt when the fastening member is clamped in the embodiment of the present invention;

FIG. 8 is an elevation view of a fastener according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of an embodiment of the present invention shown unlocked with a fastener inserted into a fastener receiving hole;

fig. 10 is a cross-sectional view of the embodiment of the present invention when the fastening member is inserted into the fastening hole and locked.

Wherein:

the structure comprises an outer shell 1, an upper cover 2a, a lower cover 2b, a mounting bracket 3, a fastener 5, a fastening mounting hole 11, a clamping groove 12, a slot 13, a guide groove 14, a locking groove 15, a locking tongue 16, a spring 17, a mounting through hole 21, a clamping piece 22, an insertion piece 23, a rotating handle 51, a nut 52, a cylinder 53, a cavity 54, a locking end 55 and a curved elastic piece 56.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example (b):

referring to fig. 1-10, an embodiment of the present invention provides an explosion-proof housing, specifically including an outer housing 1, an upper cover 2a, a lower cover 2b, and a fastener 5, wherein the outer housing 1 has an upper opening and a lower opening, a mounting cavity 11 is provided in the housing, and a fixing platform for mounting electrical components is provided in the mounting cavity 11, the fixing platform is made of elastic metal and provided with a mounting hole with internal threads, a mounting bracket 3 is provided on an outer vertical surface of the outer housing 1, and the mounting bracket 3 is provided with a U-shaped mounting notch;

the edge of the opening of the outer shell 1 extends outwards to form a mounting surface, the front edge of the mounting surface is provided with a fastening mounting hole 11, the edges of two sides are provided with clamping grooves 12, and the rear edge is provided with a slot 13 and a guide groove 14;

go up lid 2a and lower lid 2b structure the same, the surface all is equipped with installation via hole 21, fastener 22, plug-in components 23, goes up lid 2a, lower lid 2b and shell body 1 installation back, and installation via hole 21 and fastening installation hole 11 coincide, and fastener 22 block is in draw-in groove 12, and plug-in components 23 block is in slot 13, and fastener 5 passes installation via hole 21 chucking in fastening installation hole 11.

Referring to fig. 4 and 5, a locking groove 15 is formed in the fastening mounting hole 11, a locking tongue 16 is elastically connected in the locking groove 15, and a plurality of springs are arranged in the locking groove 15 and elastically connected with the locking tongue 16; the part of the lock tongue 16 protruding out of the lock groove 15 is cylindrical, the bottom is a plane clamping end, and the top is a conical passing end.

Referring to fig. 6-8, the fastener 5 comprises a rotating handle 51, a nut 52, and a cylinder 53, wherein the cylinder 53 is provided with a cavity 54 for accommodating the latch 16, and the bottom of the cavity 54 and the cylinder 53 form a locking end 55; at the bottom of the nut 52, a raised curved spring plate 56 is provided along the column 53.

The surfaces of the upper cover body 2a and the lower cover body 2b are provided with sealing rings surrounding the opening of the outer shell body 1.

In the description herein, the schematic representations of the terms used above are not necessarily intended to be the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An explosion-proof shell comprises an outer shell (1), an upper cover body (2a), a lower cover body (2b) and fasteners (5), wherein the outer shell (1) is provided with an upper opening and a lower opening, a mounting cavity is arranged in the shell, a fixing platform for mounting electrical components is arranged in the mounting cavity, and a mounting bracket (3) is arranged on the outer vertical surface of the outer shell (1); the method is characterized in that:

the edge of the opening of the outer shell (1) extends outwards to form a mounting surface, the front edge of the mounting surface is provided with a fastening mounting hole (11), the edges of the two sides are provided with clamping grooves (12), and the rear edge is provided with a slot (13) and a guide groove (14);

go up lid (2a) and lower lid (2b) structure the same, the surface all is equipped with installation via hole (21), fastener (22), plug-in components (23), go up lid (2a), lower lid (2b) and shell body (1) installation back, installation via hole (21) and fastening mounting hole (11) coincidence, fastener (22) block is in draw-in groove (12), plug-in components (23) block is in slot (13), fastener (5) pass installation via hole (21) chucking in fastening mounting hole (11).

2. The explosion-proof housing as claimed in claim 1, wherein a locking groove (15) is formed in the fastening mounting hole (11), a locking tongue (16) is elastically connected in the locking groove (15), the part of the locking tongue (16) protruding out of the locking groove (15) is cylindrical, the bottom is a plane clamping end, and the top is a conical passing end.

3. An explosion-proof housing as claimed in claim 2, characterized in that the structure of the resilient connection tongue (16) in the locking groove (15) is a number of springs (17).

4. An explosion-proof housing as claimed in claim 2, characterized in that the fastening element (5) consists of a rotary handle (51), a nut (52) and a cylinder (53), wherein a cavity (54) for accommodating the bolt (16) is formed in the cylinder (53), and the bottom of the cavity (54) and the cylinder (53) form a locking end (55).

5. Explosion proof housing according to claim 4, characterized in that at the bottom of the screw cap (52) there is provided a raised curved spring (56) in the direction of the column (53).

6. Explosion proof housing according to any of claims 1 to 5, characterized in that the upper cover (2a) and the lower cover (2b) are provided with sealing rings on their surfaces surrounding the opening of the outer housing (1).

7. Explosion proof housing according to claim 6, characterized in that the mounting bracket (3) is provided with a U-shaped mounting notch.

8. An explosion proof housing as claimed in claim 6 wherein the mounting platform is formed of resilient metal and is provided with internally threaded mounting holes.