CN213742104U - Ventilating duct direct-buried construction structure - Google Patents

Abstract

A direct-buried construction structure of an air duct relates to the field of pipeline construction and comprises a horizontal foundation trench arranged below the ground, a concrete cushion poured at the bottom of the foundation trench, a main air duct fixed on the concrete cushion through a pipe hoop, a branch air duct vertically communicated with the main air duct, an air quantity regulating valve internally connected with an upper opening of the branch air duct, a grid air port covering the upper opening of the branch air duct, a template erected around the main air duct and filling concrete poured in the template; the main air pipe is a spiral air pipe, is hooped tightly by a pipe hoop and is fixed on the concrete cushion layer by bolts penetrating in the bolt penetrating holes. The utility model provides an adopt civil engineering wind channel as air pipe among the prior art, engineering cost is high, the problem of easy and peripheral foundation ditch, wall post basis conflict.

Description

Ventilating duct direct-buried construction structure

Technical Field

The utility model relates to a pipeline construction field especially relates to air pipe direct-burried construction structures.

Background

In a plurality of automobile factory building assembly workshops, because off-line vehicles need to discharge a large amount of automobile exhaust in the process of passing between detection lines, the collection and the discharge of the automobile exhaust in the indoor closed areas become a difficult problem. It is common practice to arrange an exhaust system above the factory building, but the exhaust gas has a relatively high density and is finally exhausted after being mixed with the indoor air, but the ventilation efficiency of this method is too low, and indoor pollution is also caused. The above problems can be solved if an exhaust device can be arranged under a traveling road of a vehicle, but the current solution is to arrange a ventilation trench or an expensive rainwater pipeline as an air duct for construction, but when the ventilation trench is arranged indoors such as a factory, if the ventilation area is large, the earth volume is large, the concrete volume is large, the steel bar volume is large, the labor volume is large, the engineering cost is high, and huge underground structures conflict with surrounding foundation pits, wall column foundations and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air pipe direct-burried construction structures adopts the civil engineering wind channel as air pipe among the solution prior art, and engineering cost is high, the problem of easy and peripheral foundation ditch, wall post basis conflict.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

air pipe direct-burried construction structures is including offering at subaerial level to the foundation trench, pouring the concrete cushion in the foundation trench bottom, fixing the main tuber pipe on the concrete cushion through the ferrule, vertical intercommunication is the branch tuber pipe on the main tuber pipe, the air regulation valve of inscription at a tuber pipe upper shed, cover the grid wind gap of establishing at a tuber pipe upper shed, prop up and establish at main tuber pipe template all around and pour the filling concrete in the template.

According to a further preferred technical scheme, the pipe hoop is U-shaped, the bottom end of the pipe hoop is horizontally bent outwards to form a connecting edge, and a bolt through hole is formed in the center of the connecting edge; the pipe hoops are arranged at intervals along the length direction of the main air pipe.

According to a further preferred technical scheme, the main air pipe is a spiral air pipe, is hooped tightly through a pipe hoop and is fixed on the concrete cushion layer through bolts penetrating in the bolt penetrating holes.

Further preferred technical scheme is that the branch air pipe is provided with reinforcing flanges at intervals along the vertical direction.

Further preferred technical scheme, air regulation valve internal connection is at the last mouthful of bronchus, including the valve body of closely laminating grafting at the bronchus last mouthful, support the steel shotcrete between valve body a offside, the adjusting nut of welding in the middle of the steel shotcrete top surface, cross-under the transmission shaft in adjusting nut, connect the horizontal regulation pole at the transmission shaft top surface, set up below the steel shotcrete and cross-under the transmission shaft at the spring, set up below the spring and cross-under the connecting piece on the transmission shaft, the fixed hinge of horizontal fixation at a connecting piece offside, articulate the two power poles at fixed hinge outer end and articulate the valve leaf at two power pole outer end.

According to a further preferred technical scheme, the valve body comprises a rectangular barrel and overlapping edges, the cross section of the barrel is matched with the size of the inner section of the branch air pipe, the overlapping edges are horizontally bent outwards along the periphery of the barrel, and the overlapping edges are correspondingly overlapped on an upper opening of the branch air pipe.

Further preferred technical scheme, the reentrant corner department between the barrel of valve body and the overlap edge has the first anchor pole that leans out the setting along the welding of hoop interval, and the outer end head of first anchor pole is bent to be L shape and buckles.

According to a further preferred technical scheme, the grid air port is correspondingly and movably lapped on the lapping edge of the valve body, the outer sides of the vertical surfaces of the periphery of the grid air port are provided with angle guards, the vertical limbs of the angle guards are lapped on the lapping edge of the valve body, the horizontal limbs horizontally extend outwards, and the top surfaces of the angle guards are flush with the ground.

Further preferred technical scheme, the reentrant corner department of angle bead has the second anchor pole that leans out the setting along the hoop interval welding, and the outer end of second anchor pole is bent to be L shape and buckles.

According to a further preferred technical scheme, the templates are erected on the periphery of the main air pipe.

Compared with the prior art, the utility model has the following characteristics and beneficial effect:

1, the utility model adopts the metal spiral air pipe with certain strength as the air pipe, and the metal spiral air pipe and the filling concrete are jointly formed into the air pipe with smooth inner wall and good closed inner cavity by erecting the templates around the metal spiral air pipe and pouring the filling concrete; compared with the existing civil air duct, the material and labor are saved, and the construction speed is high; as the metal spiral air pipe is used as the lining, the inner wall of the ventilation system is smooth and has good tightness, and the energy consumption of the fan is indirectly saved.

2, the ventilation pipeline of the utility model can be used for air supply and air exhaust, and has multiple purposes.

3, the utility model discloses the angle bead is established in the grid wind gap, strengthens the ability that local anti car rolled.

4, the utility model discloses establish air regulation valve in the branch tuber pipe, can be according to the manual regulation amount of wind of amount of wind demand, adjust simple, convenient.

The utility model discloses both can be used to ground air supply and can be used to ground air exhaust.

Drawings

Fig. 1 is a vertical view of the foundation trench and the concrete cushion layer laid in the foundation trench of the present invention.

Fig. 2 is an elevation view of the main air pipe fixed on the concrete cushion by the pipe hoop of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a plan view of the connection between the grille opening and the corner protector of the present invention.

Fig. 5 is a front sectional view of the air volume adjusting valve of the present invention.

Fig. 6 is a side sectional view showing the valve opening state of the air volume adjusting valve of the present invention.

Fig. 7 is a side sectional view showing a closed state of the valve of the air volume adjusting valve of the present invention.

Fig. 8 is a cross-sectional view of the connection between the main duct, the branch duct and the air volume adjusting valve of the present invention.

Reference numerals: 1-base groove, 2-concrete cushion, 3-pipe hoop, 4-main air pipe, 5-branch air pipe, 6-air volume adjusting valve, 7-grid air port, 8-template, 9-filled concrete, 10-angle bead, 11-first anchoring rod, 12-second anchoring rod, 13-reinforcing flange, 6.1-valve body, 6.2-steel support, 6.3-adjusting nut, 6.4-transmission shaft, 6.5-spring, 6.6-connecting piece, 6.7-fixed hinged support, 6.8-two-force rod, 6.9-valve leaf, 6.10-adjusting rod.

Detailed Description

Referring to fig. 3, the ventilating duct direct-buried construction structure includes a horizontal foundation trench 1 arranged below the ground, a concrete cushion 2 poured at the bottom of the foundation trench 1, a main air duct 4 fixed on the concrete cushion 2 through a pipe hoop 3, a branch air duct 5 vertically communicated with the main air duct 4, an air volume adjusting valve 6 internally connected to an upper opening of the branch air duct 5, a grille air opening 7 covering the upper opening of the branch air duct 5, a formwork 8 erected around the main air duct 4, and filling concrete 9 poured in the formwork 8.

Referring to fig. 1, the foundation trench 1 is formed underground according to a design drawing, the formed foundation trench 1 meets installation requirements of personnel, and the forming size of the cross section of the foundation trench 1 is reduced as much as possible, so that the amount of earthwork and the filling amount of concrete are reduced, and the waste of subsequent concrete is avoided.

Referring to fig. 1, the concrete cushion 2 has a flat surface and a laying thickness of 100 mm.

Referring to fig. 2, the pipe clamp 3 is U-shaped, the bottom end of the pipe clamp 3 is bent horizontally outwards to form a connecting edge, and a bolt through hole is formed in the center of the connecting edge; the pipe hoop 3 is arranged along the length direction of the main air pipe 4 at intervals, the setting interval is determined according to the pipe diameter of the main air pipe 4, the larger the pipe diameter is, the smaller the setting interval of the pipe hoop 3 is, and the pipe hoop 3 needs to be encrypted and arranged when the pipe diameter is larger.

The main air pipe 4 is made of a metal spiral air pipe with the thickness of 1mm, the buried strength of the spiral air pipe is high, the concrete solidification stress resistance is strong, the main air pipe 4 is directly placed in the foundation trench 1 during construction, and meanwhile, the change of the center elevation of the main air pipe 4 is noticed; the main air pipe 4 is hooped by the pipe hoop 3 and is fixed on the concrete cushion 2 by a bolt which is penetrated in the bolt penetration hole; the distance between the top surface of the main air pipe 4 and the ground is 600 mm; as the metal spiral air pipe is used as the lining, the inner wall of the ventilation system is smooth and has good tightness, so that the energy consumption of the fan is indirectly saved, and the resistance of the ventilation system is about 80 percent less than that of a civil air duct.

Referring to fig. 8, the branch duct 5 is made of galvanized sheet iron or anticorrosive steel plate with a thickness of 3mm, reinforcing flanges 13 with a specification of 35 × 10mm are arranged on the branch duct 5 at intervals along the vertical direction, the arrangement interval of the reinforcing flanges is 110mm, the cross section of the branch duct 5 is rectangular, and the specification size is 370 × 170 mm.

Referring to fig. 5 to 7, the air volume adjusting valve 6 includes a valve body 6.1 closely attached to and inserted into an upper opening of the branch air duct 5, a steel support 6.2 supported between a pair of sides of the valve body 6.1, an adjusting nut 6.3 welded in the middle of the top surface of the steel support 6.2, a transmission shaft 6.4 inserted into the adjusting nut 6.3, a horizontal adjusting rod 6.10 connected to the top surface of the transmission shaft 6.4, a spring 6.5 arranged below the steel support 6.2 and inserted into the transmission shaft 6.4, a connecting member 6.6 arranged below the spring 6.5 and inserted into the transmission shaft 6.4, a fixed hinge 6.7 horizontally fixed to one side of the connecting member 6.6, a two-force rod 6.8 hinged to an outer end of the fixed hinge 6.7, and a valve leaf 6.9 hinged to an outer end of the two-force rod 6.8.

The valve body 6.1 comprises a cylinder body with a rectangular cross section and a lap edge which is horizontally bent outwards along the periphery of the cylinder body, wherein the size of the cross section of the cylinder body is matched with the size of the inner section of the branch air pipe 5, and the lap edge is correspondingly lapped on the upper opening of the branch air pipe 5; the reentrant corner department between the barrel of valve body 6.1 and the overlap edge has the first anchor pole 11 that leans out the setting along the circumferential interval welding, and the outer end head of first anchor pole 11 is bent to be L shape and buckles.

The steel support 6.2 is a rod, two ends of which are welded with the inner side surface of the cylinder of the valve body 6.1, and the size of the steel support is 145 × 30 × 10 mm.

The drive shaft 6.4 is a bolt with a diameter of 12 mm.

The length of the adjusting rod 6.10 is 60 mm.

The spring 6.5 is located between the steel support 6.2 and the connecting piece 6.6, the diameter of the spring 6.5 is 15mm, the deformation is 270mm, and the load is 13 Kgf.

The connecting piece 6.6 connects the two fixed hinge supports 6.7 together as a coupling guide support and is used for limiting the spring 6.5.

The valve leaf 6.9 is arranged in a penetrating manner along the width direction of the valve body 6.1 and comprises a pair of main blades which are hinged with the two-force rod 6.8 and are arranged in an inward inclining manner, an upper clamping edge which is vertically bent upwards along the top end of the main blades and a lower clamping edge which is vertically bent downwards along the bottom end of the main blades; the middle part of the main blade is welded with a connecting lug plate which is hinged with the bottom end of the two-force rod 6.8.

The air volume adjusting valve 6 is internally connected with the upper opening of the branch air pipe 5, the weight of the air volume adjusting valve cannot be borne by the branch air pipe 5, and the air volume adjusting valve 6 can be manufactured by constructors according to the drawing on-site deepening and is made of stainless steel; the air volume adjusting valve 6 is convenient to install and adjust, and the linkage mechanism is simple and reliable; the air quantity can be manually adjusted; the weight of the air volume adjusting valve 6 is not born by the branch air pipe, the weight of the air volume adjusting valve acts on the angle steel angle bead position and is transmitted to the grille air port 7 laid on the ground through the angle bead, and the angle bead is not rigidly connected with the grille air port 7; if the opening degree of the air volume adjusting valve 6 needs to be adjusted through the adjusting rod 6.10, an operator can open a grille air opening on the ground for operation; if need overhaul or debug air regulation valve 6, operating personnel can open the grid wind gap, directly propose air regulation valve 6.

Referring to fig. 4, the grille tuyere 7 is correspondingly and movably lapped on the lapping edge of the valve body 6.1, the outer side of the peripheral vertical surface of the grille tuyere 7 is provided with a protective angle 10, the protective angle 10 is angle iron with the thickness of 4mm, the vertical limb of the protective angle is lapped on the lapping edge of the valve body 6.1, the horizontal limb horizontally extends outwards, and the top surface of the protective angle is flush with the ground; second anchoring rods 12 which are obliquely arranged outwards are welded at the internal corners of the protective corners 10 at intervals along the circumferential direction, and the outer end heads of the second anchoring rods 12 are bent in an L shape; the grid tuyere 7 is a galvanized grid with the thickness of 50mm, and the size of the outer frame of the galvanized grid is 430X230 mm; the grid tuyere 7 is arranged on the ground, the top surface of the grid tuyere is flush with the ground, and the grid tuyere needs to be manufactured on site; the local anti car of grid wind gap 7 rolls the ability reinforce.

And the template 8 is erected around the main air pipe 4, and the minimum distance between the outer surface of the main air pipe 4 and the inner side surface of the template 8 is 250 mm.

And filling concrete 9 between the template 8 and the main air pipe 4, wherein the filling concrete 9 needs to be filled in sections and has a certain thickness so as to ensure that the main air pipe 4 under the roadway has enough strength to ensure safety.

The existing underground ventilation generally adopts a civil air duct, but when the civil air duct is constructed indoors such as a factory, if the ventilation area is large, the earthwork amount is large, the concrete amount is large, the steel bar amount is large, the labor amount is large, and the huge underground structures conflict with surrounding foundation pits, wall column foundations and the like.

The utility model discloses pour the packing concrete in the metal spiral duct outside, strengthen the technique through appropriate concrete, realize carrying out the technique that the direct-burried laid with ordinary metal spiral duct, just so realized need set up the condition of air supply or exhaust system on ground under certain special environment like the automobile factory building assembly workshop.

The utility model realizes the purposes of arranging an air duct under the ground with the lowest cost and ventilating through a grid air port arranged on the ground; the utility model has low cost, small influence of underground arrangement, safety and reliability; the material saving comprises concrete, steel bars and the volume of excavated earth, which is about 60 percent of that of the traditional process; the labor is saved, and the construction speed is high and is about 30 percent of that of the traditional process.

The utility model discloses a work progress:

1, according to the design drawing, the foundation trench is opened under ground, the cross-sectional dimension of foundation trench should be reduced as far as possible, satisfy personnel's installation requirement can to reduce the volume of filling of earthwork and concrete, avoid resulting in the concrete extravagant.

And 2, pouring 100mm of concrete at the bottom of the foundation trench to form a concrete cushion layer, wherein the surface of the concrete cushion layer is required to be smooth.

3, place the main tuber pipe on the concrete cushion of basic inslot, pass through the ferrule that the interval set up and fix the main tuber pipe on the concrete cushion through the bolt, the ferrule needs encrypt the setting when main tuber pipe diameter is great.

And 4, the main air pipe is communicated with branch air pipes at intervals along the length direction.

And 5, manufacturing the air volume regulating valve according to the drawing on-site deepening, then installing the air volume regulating valve at the upper opening position in the branch air pipe, and installing the air volume regulating valve conveniently after the air volume regulating valve is installed, wherein a linkage mechanism needs to be simple and reliable.

And 6, installing a grid air port at the upper opening of the branch air pipe.

And 7, supporting templates around the main air pipe.

And 8, pouring and filling concrete in the template.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. Air pipe direct-burried construction structures, its characterized in that: the concrete cushion is characterized by comprising a horizontal foundation trench (1) arranged below the ground, a concrete cushion (2) poured at the bottom of the foundation trench (1), a main air pipe (4) fixed on the concrete cushion (2) through a pipe hoop (3), a branch air pipe (5) vertically communicated with the main air pipe (4), an air quantity regulating valve (6) internally connected with the upper opening of the branch air pipe (5), a grid air opening (7) covered on the upper opening of the branch air pipe (5), a template (8) arranged around the main air pipe (4) in a supporting mode and filling concrete (9) poured in the template (8).

2. The ventilation duct direct burial construction structure of claim 1, wherein: the pipe hoop (3) is U-shaped, the bottom end of the pipe hoop is horizontally bent outwards to form a connecting edge, and a bolt through hole is formed in the center of the connecting edge; the pipe hoops (3) are arranged at intervals along the length direction of the main air pipe (4).

3. A ventilation duct direct burial construction structure according to claim 2, wherein: the main air pipe (4) is a spiral air pipe, is hooped tightly by a pipe hoop (3) and is fixed on the concrete cushion (2) by bolts penetrating in the bolt through holes.

4. The ventilation duct direct burial construction structure of claim 1, wherein: reinforcing flanges (13) are arranged on the branch air pipes (5) at intervals along the vertical direction.

5. The ventilation duct direct burial construction structure of claim 1, wherein: the air volume adjusting valve (6) is internally connected with the upper opening of the branch air pipe (5) and comprises a valve body (6.1) which is tightly attached and inserted into the upper opening of the branch air pipe (5), a steel support (6.2) which is supported between a pair of sides of the valve body (6.1), an adjusting nut (6.3) which is welded in the middle of the top surface of the steel support (6.2), a transmission shaft (6.4) which is penetrated and connected in the adjusting nut (6.3), a horizontal adjusting rod (6.10) which is connected to the top surface of the transmission shaft (6.4), a spring (6.5) which is arranged below the steel support (6.2) and is penetrated and connected onto the transmission shaft (6.4), a connecting piece (6.6) which is arranged below the spring (6.5) and is penetrated and connected onto the transmission shaft (6.4), a fixed hinge support (6.7) which is horizontally fixed at one side of the connecting piece (6.6.6), a two-force rod (6.8) which is hinged on the outer end of the fixed hinge support (6.7) and a valve blade (6.9) which is hinged on the outer end of the two-force rod (6.8).

6. The ventilation duct direct burial construction structure of claim 5, wherein: the valve body (6.1) comprises a cylinder body with a rectangular cross section and a lap edge, wherein the cross section of the cylinder body is matched with the size of the inner section of the branch air pipe (5), the lap edge is horizontally bent outwards along the periphery of the cylinder body, and the lap edge is correspondingly lapped at the upper opening of the branch air pipe (5).

7. The ventilation duct direct burial construction structure of claim 6, wherein: the internal corner between the cylinder body of the valve body (6.1) and the overlapping edge is welded with first anchoring rods (11) which are arranged obliquely outwards at intervals along the circumferential direction, and the outer end heads of the first anchoring rods (11) are bent in an L shape.

8. The ventilation duct direct burial construction structure of claim 7, wherein: the grille air port (7) is correspondingly movably lapped on the lapping edge of the valve body (6.1), the outer side of the vertical surface around the grille air port (7) is provided with a protective angle (10), the vertical limb of the protective angle is lapped on the lapping edge of the valve body (6.1), the horizontal limb horizontally extends outwards, and the top surface of the protective angle is flush with the ground.

9. A ventilation duct direct burial construction structure according to claim 8, wherein: the internal corner of the angle bead (10) is welded with second anchoring rods (12) which are obliquely arranged outwards at intervals along the circumferential direction, and the outer end heads of the second anchoring rods (12) are bent in an L shape.

10. A ventilation duct direct burial construction structure according to any one of claims 1 to 9, wherein: the templates (8) are erected around the main air pipe (4).

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