CN111076341A

CN111076341A - Building basement energy-saving ventilation system

Info

Publication number: CN111076341A
Application number: CN201911397082.7A
Authority: CN
Inventors: 陈景富
Original assignee: Foshan Shunde Xinshuncheng Construction Engineering Co Ltd
Current assignee: Foshan Shunde Xinshuncheng Construction Engineering Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-28
Anticipated expiration: 2039-12-30
Also published as: CN111076341B

Abstract

The invention relates to an energy-saving ventilation system of a building basement, which comprises the basement and ventilation pipes positioned on two sides of the basement, wherein the ventilation pipes are connected with a flow guide pipe, the ventilation pipes are communicated with the basement, the horizontal section of each ventilation pipe forms a box chamber, an air volume adjusting mechanism is arranged in each box chamber, one end, far away from the basement, of one ventilation pipe extends out of the ground and is connected with a horn cover through a telescopic mechanism, and one end, far away from the basement, of the other ventilation pipe extends out of the ground. The telescopic mechanism can adjust the height of the horn cover, so that the air inlet volume of the horn cover is adjusted, the ventilation volume inside the ventilation pipe is adjusted through the air volume adjusting mechanism, the ventilation flow inside the basement can be integrally adjusted according to the change of seasonal climate, and the ventilation effect is improved.

Description

Building basement energy-saving ventilation system

Technical Field

The invention relates to the technical field of basement ventilation, in particular to an energy-saving ventilation system for a building basement.

Background

Because the green building concept is more and more popular with people, the utilization of the basement space is the inevitable trend of the existing urban building, and because of the special geographical position of the basement, a ventilation structure needs to be added to avoid the basement from being sultry, ensure the ventilation and freshness, and build a comfortable and ideal indoor environment.

Currently, for example, chinese patent application publication No. CN204081393U discloses a novel ventilation shaft for a basement, which includes a ventilation shaft disposed in a basement, a ventilation shaft disposed above the ground, and a civil air duct disposed on a ground cover layer, wherein the civil air duct is connected to the ventilation shaft in the basement and the ventilation shaft above the ground, and the ventilation shaft in the basement is communicated with an air duct. The civil air duct is arranged on the soil covering layer, so that the distance between the position of the air outlet of the ventilation shaft and the air exhaust shaft meets the standard requirement, the ventilation machine room of the basement can be arranged more flexibly, and the available space of a building is increased.

The above prior art solutions have the following drawbacks: the ventilation shaft is connected with the tuber pipe though being the right angle and can playing water-proof effects, but the ventilation route size of tuber pipe can not be adjusted, and the ventilation flow of basement can not be adjusted, can not adjust the size of basement ventilation flow according to different climatic change demands.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an energy-saving ventilating system for a building basement, which can adjust the ventilating flow of the basement according to the seasonal climate change requirements.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a building basement energy-conserving ventilation system, includes the basement and is located the ventilation pipe of basement both sides, the ventilation pipe is connected with the honeycomb duct, the ventilation pipe is linked together with the basement, the horizontal segment of ventilation pipe forms the case room, be provided with air regulation mechanism in the case room, one of them the one end that the basement was kept away from to the ventilation pipe stretches out ground and is connected with the loudspeaker cover through telescopic machanism, another the one end that the basement was kept away from to the ventilation pipe stretches out ground and is provided with the rain-.

By adopting the technical scheme, the wind on the bottom surface is guided to the inside of the ventilation pipes by the horn cover and then enters the basement, the airflow is ventilated in the basement through the two ventilation pipes, the basement can be prevented from being sultry, energy is saved, the height of the horn cover can be adjusted by utilizing the telescopic mechanism, and the wind speed is not consistent in size at different height positions, and the wind speed is increased along with the rise of the height, so that the height of the horn cover can be adjusted as required, and the ventilation efficiency in the basement is adjusted; the air volume adjusting mechanism can adjust the area of the air flow passing through the ventilation pipe, thereby controlling the air volume entering the basement and adjusting the air intake volume of the ventilation pipe according to different climate changes.

The present invention in a preferred example may be further configured to: air regulation mechanism includes first motor, chain, two sprockets, two sliding door and two screw rods, the screw rod rotates and sets up in the case room, the ventilation pipe is close to the case room and keeps away from the port of basement one side and forms the regulation mouth, two sliding door cooperation covers in adjusting the mouthful position, sliding door's both sides are provided with a screw thread section of thick bamboo, the screw thread of screw rod both sides is reverse to be set up, the screw rod is worn to locate two sliding door with the screw thread section of thick bamboo of one side, the sprocket is fixed to be set up in the screw rod, two the sprocket is connected through the chain, the output shaft of first motor with one of them screw rod fixed connection.

Through adopting above-mentioned technical scheme, first motor drive screw rod rotates, and two sprockets pass through the chain and rotate in step to make two screw rods rotate in step, two sliding door can be close to each other or keep away from on the screw rod, can adjust the area that the ventilation pipe position supplied the air current to pass through, thereby can adjust basement ventilation flow's size according to seasonal variation needs.

The present invention in a preferred example may be further configured to: two pass the door and be close to each other one side and seted up the through-going wind gap, one of them push the door and set up built-in groove towards the one side of another push door, built-in groove is accomodate and is carried out confined baffle to two wind gaps, the pass door of seting up built-in groove is provided with the cylinder, the hydraulic stem of cylinder is connected with the baffle.

Through adopting above-mentioned technical scheme, when the great entering ventilation intraduct of rainwater, two pushing door closures can avoid the rainwater to get into the basement in adjusting a mouthful position, provide water-proof effects, utilize the cylinder to promote the baffle and accomodate including built-in inslot portion, the baffle does not shelter from the wind gap, inside gas can get into the basement from the wind gap position, guarantee that the inside air current of basement is unobstructed, avoid the basement to produce stifled because gaseous not circulating, utilize the cylinder to promote the baffle and remove two wind gap positions, can seal two wind gaps.

The present invention in a preferred example may be further configured to: the telescopic mechanism comprises a telescopic pipe, a rotary drum, a second motor and a gear, the rotary drum is rotatably arranged at one end, far away from the basement, of one ventilation pipe, the rotary drum and the corresponding ventilation pipe are penetrated and arranged by the telescopic pipe, a cylindrical cam groove is formed in the outer side wall of the telescopic pipe, a sliding ball is arranged on the rotary drum and is mutually spliced with the cylindrical cam groove, the gear is arranged on an output shaft of the second motor, a rack meshed with the gear is arranged on the outer side wall of the rotary drum, and the telescopic pipe is provided with a limiting mechanism for limiting the rotation of.

Through adopting above-mentioned technical scheme, second motor drive gear rotates, and gear drive rotary drum drives the smooth ball and rotates, and flexible pipe restricts the rotation through injecing the mechanism, and the smooth ball slides in cylinder cam groove is inside, can drive flexible pipe and reciprocate to adjust the height of horn mouth, thereby adjust the intake of ventilation pipe.

The present invention in a preferred example may be further configured to: the limiting mechanism is arranged to be a convex block, the convex block is arranged at one end, far away from the horn cover, of the telescopic pipe, and a sliding groove connected with the convex block in a sliding mode is formed in the inner side wall of the corresponding ventilating pipe.

Through adopting above-mentioned technical scheme, flexible pipe slides the in-process from top to bottom in the ventilation pipe is inside, and the lug slides from top to bottom in the spout is inside, can provide limiting displacement to flexible pipe, avoids flexible pipe to follow the synchronous rotation of rotary drum, provides the guide effect to flexible pipe simultaneously, makes flexible pipe vertical reciprocating in the ventilation pipe.

The present invention in a preferred example may be further configured to: an arc-shaped embedding groove is formed in the side wall of the air vent far away from the built-in groove, and the embedding groove is matched and clamped with one end of the baffle.

Through adopting above-mentioned technical scheme, when the cylinder promoted the baffle and removed two ventilative mouthful positions, baffle and gomphosis groove mutually supported joint are injectd the displacement of baffle, make the baffle remove the accurate position in two ventilative mouths.

The present invention in a preferred example may be further configured to: the edge of the adjusting opening is provided with a flange, and the pushing door is provided with a concave edge which is mutually lapped with the outer side wall of the flange.

Through adopting above-mentioned technical scheme, two pass the door and be close to each other when the regulation mouth position, the concave edge overlap joint is injectd the displacement distance of sliding door at the lateral wall of flange, makes two sliding doors remove to accurate position, strengthens sliding door and corresponding ventilation pipe's the compactness of being connected, provides sealed, waterproof effect.

The present invention in a preferred example may be further configured to: one of the pushing doors is provided with a matching groove, the other pushing door is provided with a tongue-and-groove, the tongue-and-groove and the matching groove are respectively positioned on the opposite surfaces of the two pushing doors, and the tongue-and-groove and the matching groove are mutually clamped.

By adopting the technical scheme, when the two pushing doors are close to each other, the matching groove and the tongue-and-groove are clamped with each other, the connecting positions of the two pushing doors are positioned and fixed, and the two pushing doors are closed tightly.

The present invention in a preferred example may be further configured to: rubber pads are arranged on one side, facing the concave edge, of the flange and one side, facing the rabbet, of the coordination groove.

Through adopting above-mentioned technical scheme, the rubber pad provides cushioning effect, avoids flange and concave edge, two to pass a door direct contact and produce the rigidity collision, reduces the defective production, provides sealed effect simultaneously, avoids the rainwater to pass through between the gap between concave edge and flange, two migration doors, causes the basement humidity.

The present invention in a preferred example may be further configured to: the basement is provided with a plurality of air inlets, the air inlet is connected with the ventilation pipe that is connected with the loudspeaker cover.

By adopting the technical scheme, the airflow is divided into the plurality of air inlets from one ventilation pipe to enter the basement, so that the airflow can be uniformly dispersed in the basement, and the ventilation effect of the basement is improved.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the horn cover guides the wind on the bottom surface to the inside of the ventilation pipes and then enters the inside of the basement, the airflow is ventilated in the basement through the two ventilation pipes, the basement can be prevented from being sultry, energy is saved, the height of the horn cover can be adjusted by utilizing the telescopic mechanism, the wind speed at different height positions is different in size, the wind speed is increased along with the rise of the height, the height of the horn cover can be adjusted as required, so that the ventilation efficiency in the basement is adjusted, the air volume passing area of the airflow can be adjusted at the positions of the ventilation pipes by the air volume adjusting mechanism, so that the air volume entering the basement is controlled, and the air intake volume of the ventilation pipes can be adjusted;

2. the first motor drives the screw to rotate, the two chain wheels synchronously rotate through the chain, so that the two screws synchronously rotate, the two sliding doors can be close to or far away from each other on the screws, the area of the ventilation pipe for airflow to pass through can be adjusted, and the ventilation flow of the basement can be adjusted according to seasonal variation requirements;

3. when rainwater enters the ventilation pipe greatly, the two pushing doors are closed at the position of the adjusting opening to prevent rainwater from entering the basement, a waterproof effect is provided, the air cylinder is used for pushing the baffle plate to be stored in the built-in groove, the baffle plate does not shield the ventilation opening, air can enter the basement from the position of the ventilation opening, smooth airflow in the basement is ensured, the basement is prevented from being stuffy due to the fact that the air is not circulated, the air cylinder is used for pushing the baffle plate to move to the position of the two ventilation openings, and the two ventilation openings can be sealed;

4. the second motor drives the gear to rotate, the gear drives the rotary drum to drive the sliding ball to rotate, the telescopic pipe limits autorotation through the limiting mechanism, the sliding ball slides in the cylindrical cam groove, the telescopic pipe can be driven to move up and down, and therefore the height of the horn mouth is adjusted, and the air inlet volume of the ventilation pipe is adjusted.

Drawings

FIG. 1 is a schematic cross-sectional view of an energy-saving ventilation system for a basement of a building;

FIG. 2 is a schematic cross-sectional view of the housing;

FIG. 3 is a schematic cross-sectional view of another angle of the housing;

fig. 4 is a schematic structural view of a portion a in fig. 1.

In the figure, 1, basement; 11. an air inlet; 12. an air outlet; 2. a vent pipe; 21. an adjustment port; 211. a flange; 22. a screw; 221. a sprocket; 222. a chain; 23. a first motor; 24. a chute; 25. a rain cover; 26. a flow guide pipe; 27. a second motor; 271. a gear; 3. a cabinet; 4. a sliding door; 41. a recessed edge; 42. a threaded barrel; 43. a positioning groove; 431. a rubber pad; 44. a tongue-and-groove; 45. a ventilation opening; 46. a built-in groove; 461. an avoidance groove; 47. a fitting groove; 48. a cylinder; 5. a baffle plate; 51. connecting blocks; 6. a telescopic pipe; 61. a cylindrical cam slot; 62. a bump; 63. a horn cover; 7. a rotating drum; 71. a sliding ball; 72. a rack.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the building basement energy-saving ventilation system disclosed by the invention comprises a basement 1 and ventilation pipes 2 respectively positioned at two sides of the basement 1, wherein the basement 1 is provided with an air outlet 12 and a plurality of air inlets 11, the plurality of air inlets 11 are communicated with the ventilation pipe 2 at one side, the air outlet 12 is communicated with the ventilation pipe 2 at the other side, and the ventilation pipe 2 is provided with an air volume adjusting mechanism. The bottom end of the ventilation pipe 2 is connected with a draft pipe 26 for discharging water, so that water can be prevented from entering the basement 1. Keep away from 1 one end of basement with the ventilation pipe 2 of air intake 11 intercommunication and stretch out ground and install loudspeaker cover 63 through telescopic machanism, loudspeaker cover 63 sets up towards one side, through the height of adjusting loudspeaker cover 63, can improve the induced air effect, and the one end that keeps away from basement 1 of another ventilation pipe 2 stretches out ground and installs rain cover 25.

Referring to fig. 2 and 3, the air volume adjusting mechanism includes a first motor 23, a chain 222, two sprockets 221, two screws 22 and two sliding doors 4, a box chamber 3 is formed at a horizontal section of the ventilation pipe 2 close to the draft pipe 26, the interior of the box chamber 3 is communicated with the ventilation pipe 2, and an adjusting opening 21 is formed at a port of the ventilation pipe 2 close to the box chamber 3 and far from one side wall of the basement 1 (refer to fig. 1). The screw threads on the two sides of the screw 22 are arranged in opposite directions, the screw 22 is rotatably arranged on the inner side wall of the box chamber 3 close to the adjusting opening 21, and the two screws 22 are respectively positioned on the two sides of the adjusting opening 21. The two pushing doors 4 are closed and abutted to the edge position of the adjusting opening 21, the pushing doors 4 are arranged in a semicircular shape, and the two pushing doors 4 which are mutually closed are consistent with the shape of the adjusting opening 21.

Both sides of the sliding door 4 are fixed with a threaded cylinder 42, the screw 22 penetrates through the threaded cylinders 42 on the same side of the two sliding doors 4, the two threaded cylinders 42 on the same screw 22 are respectively in threaded connection with both sides of the screw 22, the two chain wheels 221 are respectively fixed at the positions of the two screws 22 close to the end parts, the two chain wheels 221 are connected through a chain 222, the first motor 23 is fixed on the inner side wall of the box chamber 3, and the output shaft of the first motor 23 is fixedly connected with one end of one of the screws 22. One of them screw rod 22 of drive rotates through first motor 23, and two sprocket 221 pass through chain 222 synchronous rotation, make two screw rod 22 synchronous rotations, can drive screw thread section of thick bamboo 42 and drive sliding door 4 and remove to two sliding door 4 of drive are close to each other or keep away from, and the area size that the inside confession air current of adjusting ventilation pipe 2 passed through, thereby reach the effect of adjusting the ventilation flow of basement 1 (refer to fig. 1). When the two sliding doors 4 are far away from each other to the farthest end, the two sliding doors 4 are respectively located on both sides of the ventilation opening 45.

The edge of regulation mouth 21 has flange 211 towards the extension of one side of basement 1 (refer to fig. 1), and the arc edge of pass door 4 has concave edge 41 towards the extension of regulation mouth 21 one side, and when two pass doors 4 were closed each other, concave edge 41 cooperation overlap joint was in the lateral wall of flange 211, carries out prepositioning to the closed position of passing door 4, makes pass door 4 closed in the accurate position of regulation mouth 21, improves and seals the effect.

One of the sliding doors 4 is provided with a positioning groove 43 with a triangular section, the other sliding door 4 is fixedly provided with a tongue-and-groove 44 with a triangular section, the tongue-and-groove 44 and the positioning groove 43 are respectively positioned on the opposite sides of the two sliding doors 4, when the two sliding doors 4 are closed, the tongue-and-groove 44 and the positioning groove 43 are mutually matched and clamped, the connecting position of the two sliding doors 4 is positioned, the connecting position of the two sliding doors 4 is accurate and tight, and the sealing effect is improved.

Rubber pads 431 are fixed on one surface of the flange 211 facing the concave edge 41 and one surface of the rabbet 44 facing the positioning groove 43, and the rubber pads 431 can provide a buffer effect, so that the flange 211 is prevented from being in direct contact with the concave edge 41 and the two sliding doors 4 to generate rigid collision, and the generation of defects can be reduced; meanwhile, the sealing effect is provided, and moisture can be prevented from passing through the connecting gap, so that the basement 1 is wet.

The middle parts of the two pushing doors 4 close to one side each other are provided with semicircular ventilation openings 45, the ventilation openings 45 penetrate through two opposite side walls of the pushing doors 4, one of the pushing doors 4 is provided with an internal groove 46 towards the middle part of the other pushing door 4, and the internal groove 46 is communicated with the ventilation openings 45. The baffle 5 for shielding the two air vents 45 is arranged in the built-in groove 46, and the length of the baffle 5 in the length direction of the screw 22 is less than half of the length of the built-in groove 46. When baffle 5 moves to built-in groove 46 and keeps away from the one end of ventilation opening 45, baffle 5 is located one side of two ventilation openings 45, and when the rainwater was great, two pushing door 4 were closed each other, can avoid the rainwater to get into basement 1 (refer to figure 1), and ventilation opening 45 can supply air to pass through, avoids basement 1 (refer to figure 1) to become stifled because of the not circulation of gas.

The side wall of the ventilation opening 45 far away from the built-in groove 46 is provided with an arc-shaped tabling groove 47, when the baffle 5 moves to the positions of the two ventilation openings 45, the tabling groove 47 is matched and clamped with one end of the baffle 5 far away from the built-in groove 46, so that the baffle 5 and the tabling groove 47 can be tightly connected, and the sealing effect of the ventilation opening 45 is improved.

The pushing door 4 close to the built-in groove 46 is fixed with an air cylinder 48, the air cylinder 48 is positioned on one surface of the pushing door 4, which is back to the adjusting port 21, one end of the baffle 5 close to the embedding groove 47 is fixed with a connecting block 51, a hydraulic rod of the air cylinder 48 is fixedly connected with the connecting block 51, the edge of the ventilation port 45 close to the built-in groove 46 is provided with an avoiding groove 461, and when the connecting block 51 is mutually clamped with the avoiding groove 461, the baffle 5 is positioned on one side of the two ventilation ports 45.

Referring to fig. 1 and 4, the telescopic mechanism comprises a telescopic pipe 6, a rotary drum 7, a second motor 27 and a gear 271, one end of the ventilation pipe 2 close to the horn cover 63 extends out of the ground to be rotatably connected with the rotary drum 7, the diameter of the rotary drum 7 is the same as that of the ventilation pipe 2, the telescopic pipe 6 penetrates through the rotary drum 7 and extends into the ventilation pipe 2, and the horn cover 63 is installed at one end of the telescopic pipe 6 far away from the ventilation pipe 2. The outer side wall of the telescopic pipe 6 is provided with a cylindrical cam groove 61, the inner side wall of the rotary drum 7 is fixedly provided with a sliding ball 71 which is mutually spliced with the cylindrical cam groove 61, the sliding ball 71 is in sliding connection with the cylindrical cam groove 61, and the telescopic pipe 6 is connected with a limiting mechanism for limiting the autorotation of the telescopic pipe.

The second motor 27 is fixed on the ventilation pipe 2 connected with the rotary drum 7, the gear 271 is fixedly connected with the output shaft of the second motor 27, the side wall of the rotary drum 7 is provided with a rack 72, and the gear 271 is meshed with the rack 72. The second motor 27 drives the gear 271 to rotate, so that the rotary drum 7 rotates on the ventilation pipe 2, and the sliding ball 71 simultaneously slides in the cylindrical cam groove 61 during rotation, so as to drive the telescopic pipe 6 to move up and down in the ventilation pipe 2.

The limiting mechanism comprises two convex blocks 62, the two convex blocks 62 are respectively positioned at two sides of one end, far away from the horn cover 63, of the telescopic pipe 6, the sliding grooves 24 are formed in two opposite inner side walls of the ventilating pipe 2 connected with the telescopic pipe 6, the sliding grooves 24 are vertically arranged, the convex blocks 62 are in sliding connection with the sliding grooves 24, the telescopic pipe 6 can slide up and down in the sliding grooves 24 in the up-and-down moving process of the ventilating pipe 2, the rotation of the telescopic pipe 6 can be limited, and meanwhile, a guiding effect is provided.

The implementation principle of the embodiment is as follows: the gear 271 is driven to rotate by the second motor 27, the gear 271 drives the rotary drum 7 to drive the sliding ball 71 to rotate, the bump 62 slides in the sliding groove 24, the telescopic pipe 6 can be limited to rotate, the sliding ball 71 slides in the cylindrical cam groove 61, so that the telescopic pipe 6 moves up and down in the ventilation pipe 2, the height of the horn cover 63 can be adjusted, and the air intake of the horn cover 63 at different height positions is correspondingly changed. Utilize first motor 23 drive screw rod 22 to rotate, two screw rods 22 are through sprocket 221 and chain 222 mutual cooperation and synchronous rotation, can drive two sliding door 4 and be close to each other or keep away from each other on screw rod 22, can adjust the area size that ventilation pipe 2 air feed stream passes to can adjust the air volume of basement 1 according to season climate change needs.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a building basement energy-conserving ventilation system which characterized in that: including basement (1) and ventilation pipe (2) that are located basement (1) both sides, ventilation pipe (2) are connected with honeycomb duct (26), ventilation pipe (2) are linked together with basement (1), the horizontal segment of ventilation pipe (2) forms box room (3), be provided with amount of wind adjustment mechanism in box room (3), one of them ventilation pipe (2) are kept away from the one end of basement (1) and are stretched out ground and be connected with loudspeaker cover (63) through telescopic machanism, another the one end that basement (1) was kept away from in ventilation pipe (2) stretches out ground and is provided with rain-proof lid (25).

2. The building basement energy-saving ventilating system of claim 1, wherein: the air volume adjusting mechanism comprises a first motor (23), a chain (222), two chain wheels (221), two sliding doors (4) and two screw rods (22), the screw rod (22) is rotatably arranged in the box chamber (3), the vent pipe (2) is close to the port of one surface of the box chamber (3) far away from the basement (1) to form an adjusting opening (21), the two pushing doors (4) are matched to cover the position of the adjusting opening (21), the two sides of the sliding door (4) are provided with thread cylinders (42), the threads on the two sides of the screw rod (22) are arranged in reverse direction, the screw rod (22) is arranged in the thread cylinder (42) at the same side of the two sliding doors (4) in a penetrating way, the chain wheels (221) are fixedly arranged on the screw rod (22), the two chain wheels (221) are connected through a chain (222), an output shaft of the first motor (23) is fixedly connected with one of the screw rods (22).

3. The building basement energy-saving ventilating system of claim 2, wherein: two it has seted up ventilative mouth (45) that run through to push away and move door (4) one side each other and be close to, one of them push away and move door (4) and seted up built-in groove (46) towards the one side of another push away and move door (4), built-in groove (46) are accomodate and are carried out confined baffle (5) to two ventilative mouths (45), have seted up the push away and move door (4) of built-in groove (46) are provided with cylinder (48), the hydraulic stem of cylinder (48) is connected with baffle (5).

4. The building basement energy-saving ventilating system of claim 1, wherein: the telescopic mechanism comprises a telescopic pipe (6), a rotary drum (7), a second motor (27) and a gear (271), wherein the rotary drum (7) is rotatably arranged at one end of one ventilation pipe (2) far away from the basement (1), the telescopic pipe (6) is arranged in the rotary drum (7) and the corresponding ventilation pipe (2) in a penetrating mode, a cylindrical cam groove (61) is formed in the outer side wall of the telescopic pipe (6), the rotary drum (7) is provided with a sliding ball (71) which is mutually inserted into the cylindrical cam groove (61), the gear (271) is arranged on the output shaft of the second motor (27), the outer side wall of the rotary drum (7) is provided with a rack (72) which is meshed with the gear (271), and the telescopic pipe (6) is provided with a limiting mechanism for limiting the.

5. The building basement energy-saving ventilating system of claim 4, wherein: the limiting mechanism is arranged to be a convex block (62), the convex block (62) is arranged at one end, away from the horn cover (63), of the telescopic pipe (6), and a sliding groove (24) which is in sliding connection with the convex block (62) is formed in the inner side wall corresponding to the ventilating pipe (2).

6. The building basement energy-saving ventilating system of claim 3, wherein: an arc-shaped embedding groove (47) is formed in the side wall of the air vent (45) far away from the built-in groove (46), and the embedding groove (47) is matched and clamped with one end of the baffle (5).

7. The building basement energy-saving ventilating system of claim 3, wherein: the edge of adjusting mouthful (21) is provided with flange (211), sliding door (4) are provided with the mutual overlap's of lateral wall concave edge (41) with flange (211).

8. The building basement energy-saving ventilating system of claim 7, wherein: one of the pushing doors (4) is provided with a matching groove (43), the other pushing door (4) is provided with a tongue-and-groove (44), the tongue-and-groove (44) and the matching groove (43) are respectively positioned on the opposite surfaces of the two pushing doors (4), and the tongue-and-groove (44) and the matching groove (43) are mutually clamped.

9. The building basement energy-saving ventilating system of claim 8, wherein: rubber pads (431) are arranged on one surface, facing the concave edge (41), of the flange (211) and one surface, facing the rabbet (44), of the matching groove (43).

10. The building basement energy-saving ventilating system of claim 1, wherein: the basement (1) is provided with a plurality of air inlets (11), and the air inlets (11) are connected with the ventilation pipe (2) connected with the horn cover (63).