CN113531666B

CN113531666B - Dehumidification air conditioning unit for underground works

Info

Publication number: CN113531666B
Application number: CN202110985376.2A
Authority: CN
Inventors: 郭祥鸣; 郭祥亮
Original assignee: Shanghai Feizhong Refrigeration Equipment Co ltd
Current assignee: Shanghai Feizhong Refrigeration Equipment Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-05-13
Anticipated expiration: 2041-08-26
Also published as: CN113531666A

Abstract

The invention relates to a dehumidification air conditioning unit for underground engineering, which comprises a bracket and a shell arranged on the bracket, wherein a main filter is arranged in the shell, a rotating shaft is rotatably arranged in the shell, a dovetail groove is formed in the end wall of the main filter, a dovetail block is fixedly arranged on the surface of the rotating shaft, an operation hole is formed in the top of the shell, a rotating assembly is arranged on the shell, and sealing plates are symmetrically and fixedly arranged on the side wall of the rotating shaft; the outer side wall of the shell is provided with a discharging hole, and the shell is provided with a discharging assembly; the shell is provided with a feeding box, a plurality of negative filters are placed in the feeding box, the outer side wall of the feeding box is provided with a feeding hole for the negative filters to penetrate through, and an abutting elastic piece is fixedly arranged in the feeding box; be provided with the feeding subassembly on the feeding case, the feeding subassembly is used for driving the negative filter and passes the feed port and interconnect with the forked tail piece, be provided with the controller on the casing. This application has the automation and changes the filter, reduces the effect of the manual operation degree of difficulty.

Description

Dehumidification air conditioning unit for underground works

Technical Field

The invention relates to the technical field of air conditioning equipment, in particular to a dehumidification air conditioning unit for underground engineering.

Background

In the air-conditioning system, the air sent into each area is treated in a machine room, and the air-conditioning unit is called an air-conditioning unit, and can adjust and control parameters such as temperature, humidity, and flow rate of ambient air in a building or structure.

The Chinese patent with the publication number of CN103075764B in the related technology provides a double-cold-source dehumidification air conditioning unit, which comprises an air conditioning unit shell, wherein one side of the air conditioning unit shell is provided with a fresh air inlet, a filter is arranged in the shell and positioned at the fresh air inlet, a surface air cooler for cooling is arranged in the shell, an evaporator for cooling and dehumidifying is also arranged in the shell, the top of the shell is provided with an air outlet, and an air feeder is arranged at the air outlet; in humid weather, the air enters into to the casing through the new trend import, and the filter can filter air dust removal, utilizes the evaporimeter to cool off the dehumidification to the air, and the air is finally sent into indoorly through the air outlet by the forced draught blower, realizes the regulation and control to room air temperature and humidity.

In view of the above-mentioned related technologies, the inventor believes that after the air conditioning unit is used for a long time, especially in a severe use environment, a lot of dust is accumulated inside the filter, and the filter needs to be replaced periodically, and the filter is arranged in the housing, so that the replacement is inconvenient, some air conditioning units are arranged underground, and the manual replacement needs to consume a large amount of labor, and thus needs to be improved.

Disclosure of Invention

In order to change the filter automatically, reduce artificial operation degree of difficulty, this application provides a dehumidification air conditioning unit for underground works.

The application provides a dehumidification air conditioning unit for underground works adopts following technical scheme:

a dehumidification air conditioning unit for underground engineering comprises a support and a shell arranged on the support, wherein a main filter is arranged in the shell, a rotating shaft is rotatably arranged in the shell, a dovetail groove is formed in the end wall of the main filter, a dovetail block capable of being inserted into the dovetail groove is fixedly arranged on the surface of the rotating shaft, and the dovetail block and the dovetail groove are matched with each other; the top of the shell is provided with an operation hole for the main filter to pass through, the shell is provided with a rotating assembly for driving the rotating shaft to rotate and fix, and the side wall of the rotating shaft is fixedly provided with a sealing plate for sealing the operation hole; the outer side wall of the shell is provided with a discharge hole for the main filter to pass through, the shell is provided with a discharge assembly, and the discharge assembly is used for driving the main filter and the dovetail block to be separated from each other and pass through the discharge hole; the shell is provided with a feeding box, a plurality of negative filters are placed in the feeding box, the sizes of the negative filters are the same as those of the main filters, the outer side wall of the feeding box is provided with a feeding hole for the negative filters to pass through, and an abutting elastic part abutting against the side wall of the negative filter is fixedly arranged in the feeding box; the feeding box is provided with a feeding assembly, and the feeding assembly is used for driving the negative filter to penetrate through the feeding hole and be connected with the dovetail block; the shell is provided with a controller, the rotating assembly, the discharging assembly and the feeding assembly are connected with the controller, and the controller is used for periodically controlling the discharging assembly, the rotating assembly and the feeding assembly to work in sequence.

By adopting the technical scheme, after the air conditioning unit is used for a long time, more dust can be accumulated in the main filter, at the moment, the controller firstly controls the unloading assembly to work, the unloading assembly drives the main filter and the dovetail block to be separated from each other and enables the main filter to pass through the unloading hole, at the moment, no device for filtering air is arranged in the shell, the old filter is disassembled, then the controller controls the rotating assembly, the rotating assembly drives the rotating shaft to rotate 180 degrees, at the moment, the dovetail block is positioned outside the shell, then the feeding assembly drives the feeding hole through which the negative filter in the feeding box passes and connects the negative filter and the dovetail block with each other, at the moment, the negative filter is arranged on the rotating shaft, at last, the rotating assembly drives the rotating shaft to rotate 180 degrees, the negative filter rotates into the shell, after the rotating shaft rotates, the sealing plate can seal the operation hole, and the replacement between the negative filter and the main filter is realized, and the butt elastic component in the feeding box can make the negative filter neatly arrange in the feeding box, and the controller can be periodic with the interior negative filter of feeding box replace to the casing in, realize automatic change to main filter, need not artificial operation, reduced the labour, ensure that air conditioning unit has good filter effect to the air.

Optionally, the rotating assembly comprises a worm wheel, a worm and a motor, one end of the rotating shaft penetrates through the shell and is fixed with the worm wheel, the motor is fixedly installed on the outer side wall of the shell, the worm is fixedly connected with a driving shaft of the motor, and the worm wheel is meshed with the worm.

Through adopting above-mentioned technical scheme, when needing drive axis of rotation to rotate, drive the worm through the motor and rotate, the worm offsets with the worm wheel, and then drives the axis of rotation and rotate, can quick locking between worm and the worm wheel, when the air flows in the casing, the axis of rotation can't rotate to in fix the casing fast to the burden filter after changing, the stability of axis of rotation is good.

Optionally, the discharging assembly comprises a discharging cylinder and a discharging plate, the outer side wall of the shell is provided with a connecting hole matched with the discharging plate, the discharging plate is located in the connecting hole, the discharging cylinder is fixedly installed on the outer side wall of the shell, and a piston rod of the discharging cylinder is fixed to the discharging plate.

Through adopting above-mentioned technical scheme, when needing to dismantle between main filter and the axis of rotation, the work of control cylinder of unloading, the cylinder of unloading drives the end wall counterbalance of stripper and main filter, and the stripper promotes main filter and passes the discharge opening, breaks away from dovetail piece and dovetail each other, can dismantle main filter out of the casing, and the stripper can seal the connecting hole simultaneously.

Optionally, the feeding assembly includes a feeding cylinder, the feeding cylinder is fixedly mounted on the outer side wall of the feeding box, and a piston rod of the feeding cylinder extends into the feeding box.

Through adopting above-mentioned technical scheme, rotating assembly rotates out the casing with the forked tail piece after, the forked tail piece is located the top of casing, promote the negative filter of feeding incasement through control feeding cylinder this moment, the negative filter passes the feed port, the forked tail piece can be inserted and establish to the dovetail on the negative filter in, thereby install the negative filter in the axis of rotation, treat feeding cylinder's telescopic link shrink back, butt elastic component offsets with the negative filter, the negative filter in the feeding incasement can flush each other with the feed port, in order to satisfy the effect of changing the negative filter many times.

Optionally, the end wall of the dovetail block is provided with a guide surface in an inclined manner.

By adopting the technical scheme, when the feeding assembly drives the negative filter to be connected with the rotating shaft, the dovetail block is inserted into the dovetail groove, and when the negative filter slides, the guide surface plays a role in guiding the dovetail block, so that the dovetail block is inserted into the dovetail groove, and the error occurrence condition is reduced.

Optionally, an arc-shaped sealing strip is fixedly arranged at one end, away from the rotating shaft, of the sealing plate, and the arc-shaped sealing strip abuts against the inner side wall of the operation hole.

Through adopting above-mentioned technical scheme, the rotary component will burden filter replacement to the casing after, and the closing plate seals up the handle hole, and the arc sealing strip offsets with the inside wall of handle hole this moment, and the arc sealing strip seals up the gap between closing plate and the handle hole inside wall, has improved the leakproofness of closing plate to the handle hole, reduces the phenomenon that the air flowed in or flowed out from the handle hole.

Optionally, the discharge opening internal rotation is provided with the limiting plate, limiting plate and the mutual adaptation of discharge opening, the rotation junction of limiting plate and discharge opening is provided with the torsional spring, the torsional spring orders about the limiting plate and seals the discharge opening.

Through adopting above-mentioned technical scheme, when the subassembly of unloading was released main filter from the discharge opening, main filter offseted with the limiting plate, treats main filter and breaks away from the axis of rotation after, the torsional spring orders about the limiting plate and rotates to the discharge opening downthehole, and the limiting plate plays the effect sealed to the discharge opening, and when the burden filter after changing was using simultaneously, the limiting plate can play limiting displacement to the filter, improves the stability of filter when the casing uses.

Optionally, a recycling bin is arranged on the side wall of the support and located below the discharge hole.

Through adopting above-mentioned technical scheme, the subassembly of unloading is with old filter in the casing after pushing out in the unloading hole, old filter can drop to the collection box in to retrieve the filter after dismantling.

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

the negative filter and the main filter can be replaced by the controller periodically, so that the main filter can be replaced automatically, manual operation is not needed, labor force is reduced, and the air conditioner group is ensured to have a good filtering effect on air;

the rotation of the rotating shaft is controlled by arranging the worm wheel, the worm and the motor, the worm wheel and the worm can be quickly locked, and when air flows in the shell, the rotating shaft cannot rotate so as to be convenient for quickly fixing the replaced negative filter in the shell, and the stability of the rotating shaft is good;

through setting up limiting plate and torsional spring, the limiting plate plays the effect sealed to the discharge opening, and when the burden filter after changing was using simultaneously, the limiting plate can play limiting displacement to the filter, improves the stability of filter when the casing uses.

Drawings

Fig. 1 is a schematic structural diagram of a dehumidification air conditioning unit for underground engineering according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of a dehumidification air-conditioning unit for underground engineering according to an embodiment of the present application.

Fig. 3 is a cross-sectional view of a feed box for embodying embodiments of the present application.

Fig. 4 is a schematic view for embodying the connection relationship between the main filter and the rotary shaft in the embodiment of the present application.

Description of the reference numerals: 1. a support; 2. a housing; 21. a main filter; 22. a rotating shaft; 23. an operation hole; 24. a sealing plate; 241. an arc-shaped sealing strip; 25. a discharge opening; 3. a dovetail groove; 31. a dovetail block; 311. a guide surface; 4. a rotating assembly; 41. a worm gear; 42. a worm; 43. a motor; 5. a discharge assembly; 51. a discharge cylinder; 52. a stripper plate; 521. connecting holes; 6. a feeding box; 61. a negative filter; 62. a feed port; 63. abutting against the elastic member; 7. a feed assembly; 71. a feed cylinder; 8. a limiting plate; 9. a recycling bin; 10. and a controller.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses dehumidification air conditioning unit for underground works. Referring to fig. 1 to 4, the air cleaner includes a bracket 1 and a housing 2 disposed on the bracket 1, the bracket 1 may be used to support the housing 2, a main filter 21 for removing dust and filtering air is disposed in the housing 2, and the main filter 21 is disposed in a vertical direction. A rotating shaft 22 is rotatably provided in the housing 2, the length direction of the rotating shaft 22 is arranged along the width direction of the housing 2, and a dovetail groove 3 is formed in the end wall of the main filter 21 along the width direction thereof. The outer side wall of the rotating shaft 22 is integrally provided with a dovetail block 31 along the length direction thereof, and the dovetail block 31 and the dovetail groove 3 are mutually matched. The main filter 21 and the rotary shaft 22 can be detached and attached by the dovetail block 31 and the dovetail groove 3 being fitted to each other.

Referring to fig. 1 and 2, an operation hole 23 is opened at the top of the housing 2, a rotating assembly 4 for driving the rotating shaft 22 to rotate and fix is disposed on the housing 2, and the rotating shaft 22 is rotated by the rotating assembly 4, so that the main filter 21 in the housing 2 can be rotated out of the housing 2 through the operation hole 23. The sealing plate 24 is symmetrically and fixedly arranged on the side wall of the rotating shaft 22, and when the dovetail block 31 is positioned right below the rotating shaft 22, the sealing plate 24 can seal the operation hole 23.

Referring to fig. 1 and 2, a discharge hole 25 through which the main filter 21 passes is formed in an outer side wall of the housing 2, and the discharge hole 25 is formed along a height direction of the housing 2. The housing 2 is provided with a discharge assembly 5, which discharge assembly 5 can push the main filter 21 and the dovetail block 31 away from each other and pass the main filter 21 through the discharge opening 25. The collection box 9 is installed to the lateral wall of support 1, and collection box 9 is located the below of discharge opening 25, and the back is released from discharge opening 25 with the filter in the casing 2 to the subassembly of unloading 5, and the filter can drop to in the collection box 9 to retrieve the filter after changing.

Referring to fig. 2 and 3, a feeding box 6 is fixedly installed on the housing 2, a plurality of negative filters 61 are placed in the feeding box 6, the size and type of the negative filters 61 are the same as those of the main filter 21, abutting elastic members 63 abutting against the side walls of the negative filters 61 are fixedly arranged in the feeding box 6, and the abutting elastic members 63 are springs. A feeding hole 62 for the negative filter 61 to pass through is formed in one side of the feeding box 6 facing the direction of the shell 2, the feeding box 6 is provided with the feeding assembly 7, and the feeding assembly 7 can enable the negative filter 61 which is flush with the feeding hole 62 to pass through the feeding hole 62 and connect the negative filter 61 and the dovetail block 31 to each other. After the feeding assembly 7 passes the negative filter 61, which is flush with the feeding hole 62, through the feeding hole 62, the abutting elastic member 63 automatically moves the next negative filter 61 to a position flush with the feeding hole 62.

Referring to fig. 1 and 2, a controller 10 is arranged on the housing 2, the rotating assembly 4, the discharging assembly 5 and the feeding assembly 7 are all connected with the controller 10, the controller 10 periodically controls the discharging assembly 5, the rotating assembly 4 and the feeding assembly 7 to work in sequence, and the period can be set according to the service environment of the air conditioning unit. After the main filter 21 is used for a long time, the discharging assembly 5 is controlled to separate the main filter 21 from the dovetail block 31 and enable the main filter 21 and the dovetail block 31 to pass through the discharging hole 25, then the rotating shaft 22 is driven by the rotating assembly 4 to rotate 180 degrees, the dovetail block 31 is located outside the shell 2 at the moment, the feeding assembly 7 is controlled to install the negative filter 61 on the rotating shaft 22, and finally the rotating assembly 4 drives the rotating shaft 22 to rotate 180 degrees, so that switching between the negative filter 61 and the main filter 21 is completed, manual operation is not needed, and the filter in the shell 2 is replaced automatically.

Referring to fig. 1, the rotating assembly 4 includes a worm wheel 41, a worm 42, and a motor 43, the motor 43 is connected to the controller 10, one end of the rotating shaft 22 penetrates through the housing 2 and is fixed to the worm wheel 41, the motor 43 is fixedly mounted on an outer side wall of the housing 2 through a bolt, the worm 42 is fixedly connected to a driving shaft of the motor 43, and the worm wheel 41 and the worm 42 are engaged with each other. The motor 43 drives the worm 42 to rotate, the worm 42 abuts against the worm wheel 41, and then the rotating shaft 22 is driven to rotate, so that the position of the dovetail block 31 is changed, meanwhile, the worm 42 and the worm wheel 41 can be locked quickly, and when airflow flows in the shell 2, the rotating shaft 22 is not easy to rotate.

Referring to fig. 1 and 2, the discharging assembly 5 includes a discharging cylinder 51 and a discharging plate 52, the discharging cylinder 51 is connected to the controller 10, a connecting hole 521 is formed through an outer side wall of the housing 2, the discharging plate 52 is located in the connecting hole 521, the discharging plate 52 is fitted into the connecting hole 521, and a surface of the discharging plate 52 and an end wall of the main filter 21 are attached to each other. The discharging cylinder 51 is fixedly arranged on the outer side wall of the shell 2, and a piston rod of the discharging cylinder 51 is connected with the discharging plate 52. When the main filter 21 is disassembled, the piston rod of the discharging cylinder 51 is controlled to extend and retract, so that the discharging plate 52 is driven to abut against the end wall of the main filter 21, the main filter 21 is pushed towards the discharging hole 25, the dovetail block 31 is separated from the dovetail groove 3, and the main filter 21 and the rotating shaft 22 can be disassembled.

Referring to fig. 2 and 3, the feeding assembly 7 includes a feeding cylinder 71, the feeding cylinder 71 is fixedly mounted on the feeding box 6, and a piston rod of the feeding cylinder 71 penetrates through a side wall of the feeding box 6 and extends into the feeding box 6. After the main filter 21 is separated from the rotating shaft 22 by the discharging cylinder 51, the dovetail block 31 is rotated to the upper side of the shell 2 by the rotating assembly 4, at the moment, the dovetail block 31 is flush with the feeding hole 62, the telescopic rod of the feeding cylinder 71 is controlled to abut against the negative filter 61 in the feeding box 6, so that the negative filter 61 penetrates through the feeding hole 62, and along with the movement of the negative filter 61, the dovetail block 31 can be inserted into the dovetail groove 3, and the negative filter 61 is installed on the rotating shaft 22.

Referring to fig. 4, the end wall of the dovetail block 31 is provided with a guide surface 311, the guide surface 311 is located at an end of the dovetail block 31 facing the direction of the feeding box 6, and when the feeding assembly 7 drives the negative filter 61 to be installed on the rotating shaft 22, the guide surface 311 can guide the dovetail block 31 so that the dovetail block 31 is inserted into the dovetail groove 3.

Referring to fig. 4, the sealing plate 24 is provided with an arc-shaped sealing strip 241 in a bonding manner at an end away from the rotating shaft 22, and after the rotating assembly 4 rotates the negative filter 61 into the casing 2, the sealing plate 24 can seal the operation hole 23, and at this time, the arc-shaped sealing strip 241 abuts against the inner side wall of the operation hole 23, so that the sealing effect of the sealing plate 24 on the operation hole 23 is improved.

Referring to fig. 2, rotating through the pivot in the discharge opening 25 and being provided with limiting plate 8, limiting plate 8 and the mutual adaptation of discharge opening 25, limiting plate 8 can seal discharge opening 25, and limiting plate 8 is provided with the torsional spring with the rotation junction of discharge opening 25. When unloading cylinder 51 promotes main filter 21 and passes discharge opening 25, limiting plate 8 is backed up, treats that main filter 21 breaks away from casing 2 completely after, torsional spring orders about limiting plate 8 to rotate to discharge opening 25 in, limiting plate 8 has improved the leakproofness of casing 2 on the one hand, and stability when the filter used in the other party improved casing 2.

The implementation principle of the dehumidification air conditioning unit for the underground engineering is as follows: after the air conditioning unit is used for a long time, the main filter 21 used in the housing 2 needs to be replaced, at this time, the controller 10 controls the piston rod of the discharging cylinder 51 to stretch and retract firstly, the discharging plate 52 abuts against the main filter 21, the main filter 21 is pushed towards the discharging hole 25, at this time, the dovetail groove 3 on the main filter 21 is separated from the dovetail block 31, and the main filter 21 is pushed out of the housing 2 from the discharging hole 25; then the motor 43 drives the worm wheel 41 and the worm 42 to rotate, and drives the rotating shaft 22 to rotate 180 degrees, so that the dovetail block 31 rotates to the upper part of the shell 2; then controlling the operation of the feeding cylinder 71, the feeding cylinder 71 pushes the negative filter 61 in the feeding box 6 through the feeding hole 62, and the negative filter 61 is connected with the dovetail block 31 while moving, so that the negative filter 61 is mounted on the rotating shaft 22; finally, the motor 43 drives the rotating shaft 22 to rotate 180 degrees, so that the negative filter 61 is driven to penetrate through the operation hole 23 to enter the shell 2, the negative filter 61 and the main filter 21 are replaced, manual operation is not needed, the filter in the shell 2 is replaced automatically at regular intervals, and good filtering effect on air is guaranteed when air flows in the shell 2.

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

Claims

1. The utility model provides an underground works is with dehumidification air conditioning unit, includes support (1) and casing (2) of setting on support (1), be provided with main filter (21), its characterized in that in casing (2): a rotating shaft (22) is rotatably arranged in the shell (2), a dovetail groove (3) is formed in the end wall of the main filter (21), a dovetail block (31) capable of being inserted into the dovetail groove (3) is fixedly arranged on the surface of the rotating shaft (22), and the dovetail block (31) is matched with the dovetail groove (3); an operation hole (23) for the main filter (21) to pass through is formed in the top of the shell (2), a rotating assembly (4) for driving the rotating shaft (22) to rotate and fix is arranged on the shell (2), and a sealing plate (24) for sealing the operation hole (23) is fixedly arranged on the side wall of the rotating shaft (22); a discharge hole (25) for the main filter (21) to pass through is formed in the outer side wall of the shell (2), a discharge assembly (5) is arranged on the shell (2), and the discharge assembly (5) is used for driving the main filter (21) and the dovetail block (31) to be separated from each other and penetrate through the discharge hole (25); a feeding box (6) is arranged on the shell (2), a plurality of negative filters (61) are placed in the feeding box (6), the sizes of the negative filters (61) are the same as those of the main filter (21), a feeding hole (62) for the negative filter (61) to pass through is formed in the outer side wall of the feeding box (6), and an abutting elastic part (63) abutting against the side wall of the negative filter (61) is fixedly arranged in the feeding box (6); the feeding box (6) is provided with a feeding assembly (7), and the feeding assembly (7) is used for driving a negative filter (61) to penetrate through a feeding hole (62) and be connected with the dovetail block (31) mutually; the automatic discharging device is characterized in that a controller (26) is arranged on the shell (2), the rotating assembly (4), the discharging assembly (5) and the feeding assembly (7) are connected with the controller (26), and the controller (26) is used for periodically controlling the discharging assembly (5), the rotating assembly (4) and the feeding assembly (7) to work in sequence.

2. The dehumidification air-conditioning unit for underground engineering according to claim 1, characterized in that: rotating assembly (4) include worm wheel (41), worm (42) and motor (43), the one end of axis of rotation (22) runs through casing (2) and worm wheel (41) reciprocal anchorage, motor (43) fixed mounting is in casing (2) lateral wall, the drive shaft fixed connection of worm (42) and motor (43), worm wheel (41) and worm (42) intermeshing.

3. The dehumidification air-conditioning unit for the underground engineering as claimed in claim 2, wherein: unloading subassembly (5) including unloading cylinder (51) and stripper (52), connecting hole (521) with stripper (52) looks adaptation are seted up to the lateral wall of casing (2), stripper (52) are located connecting hole (521), unloading cylinder (51) fixed mounting is at the lateral wall of casing (2), the piston rod and the stripper (52) reciprocal anchorage of unloading cylinder (51).

4. The dehumidification air-conditioning unit for underground engineering according to claim 3, characterized in that: the feeding assembly (7) comprises a feeding cylinder (71), the feeding cylinder (71) is fixedly installed on the outer side wall of the feeding box (6), and a piston rod of the feeding cylinder (71) extends into the feeding box (6).

5. The dehumidification air-conditioning unit for the underground engineering according to claim 4, wherein: the end wall of the dovetail block (31) is provided with a guide surface (311) in an inclined mode.

6. The dehumidification air-conditioning unit for underground engineering according to claim 1, characterized in that: the sealing plate (24) is far away from one end of the rotating shaft (22) and is fixedly provided with an arc-shaped sealing strip (241), and the arc-shaped sealing strip (241) is abutted to the inner side wall of the operating hole (23).

7. The dehumidification air-conditioning unit for underground engineering according to claim 1, characterized in that: discharge opening (25) internal rotation is provided with limiting plate (8), limiting plate (8) and discharge opening (25) adaptation each other, the rotation junction of limiting plate (8) and discharge opening (25) is provided with the torsional spring, the torsional spring orders about limiting plate (8) and seals discharge opening (25).

8. The dehumidification air-conditioning unit for underground engineering according to claim 7, characterized in that: the side wall of the support (1) is provided with a recovery box (9), and the recovery box (9) is located below the discharge hole (25).