CN205136808U - 90 elbow secretly buries box - Google Patents

Abstract

The utility model discloses a 90 elbow secretly buries box, including box body (3) and lid (1) of mutually supporting, the bottom surface upside of box body (3) is provided with 90 elbow valve (31), 90 elbow valve (31) form 90 bent angles by inconsistent heavy -calibre valve port (32) and small -bore valve port (33) the constitution of two valve port bores between its heavy -calibre valve port (32) and small -bore valve port (33), it is corresponding in two valve ports of 90 elbow valve (31), be provided with on the both sides lateral wall of box body (3) respectively corresponding valve opening (35).

Description

90 ° of elbows secretly bury box

Technical field

The utility model relates to one and secretly buries box, and especially a kind of 90 ° of elbows secretly bury box.

Background technique

In this year, along with the development of chafing dining industry, owner has had higher requirement to indoor steel gas pipe underground.According to CJJ94-2009 " construction of city gas indoor engineering and inspection of quality specification ", CJJ33-2005 " engineering construction of gas transmission & distribution and acceptance specification ", GB GB/T50028-2006 " Code for design of city gas engineering ", GB500494-2009 " city gas technical specification ", international GB/T26002-2010 " fuel gas transmission corrugated stainless steel tubing and pipe fitting ", from security standpoint, standard construction is carried out to chafing dining industry.

And existing indoor (as with places such as the chafing dish restaurants as place of business), adopt seamless steel pipe or aluminium-plastic pipe, so after having fitted up, there is a large amount of pipelines exposed on earth's surface or body of wall top layer, so to the setting in pipe laying road particularly important (the exposed pipeline on earth's surface can cause great hidden danger to the safety of pedestrian under narrow and small environment), by to after often opening desk following secretly burying box having constructed, the exposed pipeline on earth's surface can be avoided.

And now owing to secretly burying the three-way pipe that box is all generally employing, but three-way pipe is in the process used, another one valve port is needed to increase and silently uses, which increase the possibility of leak source, maintenance rate must be increased to guarantee its use safety, this increases the difficulty of construction to a certain extent, and further, the each interface of existing three-way pipe is consistent substantially, so when pipeline is changed, the pipeline can only finding identical bore is constructed for different positions, the bore waste of material that this form of construction work can make some unnecessary.

Model utility content

The technical problems to be solved in the utility model is to provide a kind of structure simple combustion gas special three-way box.

In order to solve the problems of the technologies described above, the utility model provides a kind of 90 ° of elbows secretly to bury box, comprises the box body and lid that cooperatively interact; 90 ° of elbow valves are provided with on the upside of the bottom surface of described box body; Described 90 ° of elbow valves are made up of the inconsistent heavy caliber valve port of two valve port bores and small-bore valve port, shape bent angle in 90 ° between its heavy caliber valve port and small-bore valve port; Correspond to two valve ports of 90 ° of elbow valves, on the both sides sidewall of box body, be provided with corresponding valve openings respectively.

The improvement of box is secretly buried: described 90 ° of elbow valves adopt screw and box body to interfix as 90 ° of elbows described in the utility model; Explosion-proof space is provided with between described 90 ° of elbow valves and four sidewalls of box body.

The further improvement of box is secretly buried: described valve openings arranges the valve port of corresponding size according to the heavy caliber valve port of correspondence or small-bore valve port as 90 ° of elbows described in the utility model.

The further improvement of box is secretly buried: interfixed by corrosion protection screw between described box body and lid as 90 ° of elbows described in the utility model.

The further improvement of box is secretly buried: in described box body, be provided with box body screw hole as 90 ° of elbows described in the utility model, relative to this box body screw hole, the inner side surface of lid is provided with corresponding positioning rod, is provided with corresponding lid screw hole in described positioning rod and runs through from top to bottom.

The further improvement of box is secretly buried: described corrosion protection screw comprises lead screw, and the nut of described lead screw is provided with corrosion-resistant coating as 90 ° of elbows described in the utility model.

The further improvement of box is secretly buried: between described box body and lid, be provided with Leak hole as 90 ° of elbows described in the utility model.

8 secretly bury the further improvement of box as 90 ° of elbows described in the utility model: the inner side surface of described lid is provided with stiffening rib.

What the utility model 90 ° of elbows secretly buried box employing is that the bent angles of 90 ° of degree are to arrange heavy caliber valve port and small-bore valve port, by such setting, it is made not need use the 3rd valve port, thus when setting, do not need to use silently, make using process more safe and reliable, and decrease the frequency of maintenance.

And correspondence, be provided with explosion-proof space in the utility model, imbed explosion-proof mud in the process that this inherence, space uses, further increase the Security used, and on lid, be provided with the maintenance that Leak hole is convenient at ordinary times, and the stiffening rib increased makes the bearing capacity of lid significantly improve.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.

Fig. 1 is the main structure schematic diagram of lid 1 of the present utility model;

Fig. 2 is the plan structure schematic diagram of box body 3;

Fig. 3 is the main structure schematic diagram of the reverse side of Fig. 1;

Fig. 4 is the structural representation that in Fig. 3, A-A analyses and observe;

Fig. 5 is a side structural representation of box body 3;

Fig. 6 is the main structure schematic diagram of corrosion protection screw 2;

Fig. 7 is the cross-sectional view of Fig. 6.

Embodiment

Embodiment 1, Fig. 1 ~ Fig. 7 give a kind of 90 ° of elbows and secretly bury box, comprise the box body 3 and lid 1 that cooperatively interact.Box body 3 is rectangle, be the cavity of upper end open, and its upper end is sealed by lid 1 in it.

90 ° of elbow valves 31 are provided with on the upside of the bottom surface of box body 3; These 90 ° of elbow valves 31 are made up of the inconsistent heavy caliber valve port 32 of two valve port bores and small-bore valve port 33, shape bent angle in 90 ° between its heavy caliber valve port 32 and small-bore valve port 33; The pipeline being convenient to multiple caliber is connected.And these 90 ° of elbow valves 31 adopt screw and box body 3 to interfix, this mode makes them can installation and removal fast, be convenient to the replacing etc. of 90 ° of elbow valves 31, and between 90 ° of elbow valves 31 and four sidewalls of box body 3, be provided with explosion-proof space, a large amount of explosion-proof mud is imbedded when in use in this space, improve its firing and explosion prevention performance (due to the position that the 90 ° of elbow valves 31 arranged are changed for gas pipeline herein, which employs more pipeline to connect, it is the position that gas leakage the most easily occurs, thus the distance increased between its 90 ° of elbow valves 31 and surrounding sidewall forms correlation space, then relevant explosion-proof thing is set in its space, to reach explosion-proof effect).

Correspond to two valve ports of 90 ° of elbow valves 31, on the both sides sidewall of box body 3, be provided with corresponding valve openings 35 respectively, and this valve openings 35 arranges corresponding size according to the heavy caliber valve port 32 of correspondence or small-bore valve port 33.And interfixed by corrosion protection screw 2 between box body 3 and lid 1, make the separation between box body 3 and lid 1 and closing course become very simple by the means of fixation of corrosion protection screw 2 and fast.This corrosion protection screw 2 comprises lead screw 22; the nut of lead screw 22 is provided with corrosion-resistant coating 21; (usage space of chafing dish is special to protect the lead screw 22 in it to be corroded by corrosion-resistant coating 21; there are the materials such as too much corrosivity soup to damage the lead screw 22 be directly made up of metal in using process; thus; under the prerequisite guaranteeing the intensity that screw is fixed, the mode adopting corrosion-resistant coating 21 and lead screw 22 to cooperatively interact comes connecting box body 3 and lid 1).Box body screw hole 34 is provided with in box body 3, relative to this box body screw hole 34, the inner side surface of lid 1 is provided with corresponding positioning rod 14, be provided with corresponding lid screw hole 15 in positioning rod 14 to run through from top to bottom, after the lead screw 22 of this corrosion protection screw 2 runs through lid screw hole 15 successively and box body screw hole 34 be fixed, and the exposed upper end at positioning rod 14 of its corrosion-resistant coating 21.Be provided with Leak hole 16 between box body 3 and lid 1, be convenient to do not open the lid 1 prerequisite under carry out Leak testtion.And the inner side surface of lid 1 is provided with stiffening rib 13, increase its anti-pressure ability, larger pressure can be born.

Using process is as follows:

1, ground is outputed the space of box body 3 corresponding size, and inserted.

2, corresponding gas hose is carried out connect (valve openings 35 can adopt the form of inserted sheet, inserted sheet is arranged the circular hole with valve correspondingly-sized).

3, explosion-proof mud is inserted by explosion-proof space.

4, after being located by positioning rod 14, box body 3 and lid 1 are fixed by corrosion protection screw 2.

90 ° of elbow valves 31 that the reducing that the utility model adopts is arranged, make it when in use, the associated conduit of different bore can be adopted to connect, do not needing to use bigbore position can use the pipeline of reasonably relevant bore, and in box body 3, by changing 90 ° of elbow valves 31 fast, reach the technique effect of Quick-diameter-changing, relative to existing fixed threeway box, its utilization efficiency is more increased.Position due to the utility model employing is the relevant cohesive position of pipeline, and the possibility of its gas leakage significantly increases, and the setting in the explosion-proof space that the utility model adopts, make its flame retardant effect better, significantly promote the Safety performance of relevant apparatus.

Finally, it is also to be noted that what enumerate above is only a specific embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive from content disclosed in the utility model or associate, all should think protection domain of the present utility model.

Claims (9)

1.90 ° of elbows secretly bury box, comprise the box body (3) and lid (1) that cooperatively interact; It is characterized in that: on the upside of the bottom surface of described box body (3), be provided with 90 ° of elbow valves (31);

Described 90 ° of elbow valves (31) are made up of the inconsistent heavy caliber valve port (32) of two valve port bores and small-bore valve port (33), shape bent angle in 90 ° between its heavy caliber valve port (32) and small-bore valve port (33);

Correspond to two valve ports of 90 ° of elbow valves (31), on the both sides sidewall of box body (3), be provided with corresponding valve openings (35) respectively.

2. 90 ° of elbows according to claim 1 secretly bury box, it is characterized in that: described 90 ° of elbow valves (31) adopt screw and box body (3) to interfix;

Explosion-proof space is provided with between described 90 ° of elbow valves (31) and four sidewalls of box body (3).

3. 90 ° of elbows according to claim 2 secretly bury box, it is characterized in that: described valve openings (35) arranges corresponding size according to the heavy caliber valve port (32) of correspondence or small-bore valve port (33).

4. 90 ° of elbows according to claim 3 secretly bury box, it is characterized in that: interfixed by corrosion protection screw (2) between described box body (3) and lid (1).

5. 90 ° of elbows according to claim 4 secretly bury box, it is characterized in that: in described box body (3), be provided with box body screw hole (34), relative to this box body screw hole (34), the inner side surface of lid (1) is provided with corresponding positioning rod (14), is provided with corresponding lid screw hole (15) in described positioning rod (14) and runs through from top to bottom.

6. 90 ° of elbows according to claim 5 secretly bury box, it is characterized in that: described corrosion protection screw (2) comprises lead screw (22), the nut of described lead screw (22) is provided with corrosion-resistant coating (21).

7. 90 ° of elbows according to claim 6 secretly bury box, it is characterized in that: be provided with Leak hole (16) between described box body (3) and lid (1).

8. 90 ° of elbows according to claim 7 secretly bury box, it is characterized in that: the inner side surface of described lid (1) is provided with stiffening rib (13).

9. 90 ° of elbows according to claim 8 secretly bury box, it is characterized in that: arrange explosion-proof mud in described explosion-proof space.