CN210915374U - Indoor sewage treatment device that uses of green building - Google Patents

Abstract

The utility model relates to an indoor sewage treatment device for green buildings, which comprises a case, one side of the case is provided with a wastewater inflow pipe, two sides of the bottom end part of the case are provided with sliding grooves, pillow blocks are vertically and slidably connected in the sliding grooves, the pillow blocks comprise a first pillow block and a second pillow block, the case is provided with a driving component for driving the first pillow block and the second pillow block to slide in and out, the case is provided with a mounting groove for mounting the driving component, when the sewage treatment device needs to be mounted, the pillow blocks in the sliding grooves are abutted against the ground through the driving component, when the pillow blocks are abutted against the ground, the space between the bottom wall of the case and the ground directly formed by a forklift can be used for inserting the pillow blocks, the sewage treatment device can be directly carried to the mounting position by the aid of the forklift, the device is convenient to be carried, the slide the slider into the sliding grooves through the driving component, so that the whole bottom, the stability of installation is placed to the equipment of ensureing.

Description

Indoor sewage treatment device that uses of green building

Technical Field

The utility model belongs to the technical field of sewage treatment device's technique and specifically relates to an indoor sewage treatment device that uses of green building is related to.

Background

A large amount of sewage is generated in the processes of life and production and manufacturing, the domestic sewage is directly discharged into a sewer in the past, the sewage discharged into the sewer directly enters a lake or a river, the drinking water of people is greatly polluted, meanwhile, the growth of aquatic organisms in the river and the lake is seriously influenced, and the living environment of people is seriously influenced.

Along with the more and more attention of our country to the environmental protection, I use sewage treatment device to filter the sewage that we produced through the installation, nevertheless in sewage treatment device's installation, need carry sewage treatment device to the mounted position, and carry again after needing to fork it with fork truck at the in-process of carrying, because the bottom face laminating of sewage treatment device is subaerial, lead to fork truck to be difficult to peg graft the condition of lifting it, very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an indoor sewage treatment device that uses of green building has the convenient function of transport.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an indoor sewage treatment device that uses of green building, includes quick-witted case, one side of machine case is provided with the waste water inflow pipe, the both sides of machine case bottom portion are provided with the spout, vertical sliding connection has the pillow in the spout, the pillow includes first pillow and second pillow, machine case is provided with the drive assembly who drives first pillow and second pillow slip-in and roll-off, set up the mounting groove that is used for installing drive assembly on the machine case.

Through adopting above-mentioned technical scheme, when sewage treatment device is installed to needs, pillow roll-off butt in with the spout through drive assembly is subaerial, make quick-witted case diapire and the interval that ground directly formed stop the pillow roll-off when supplying fork truck to insert at ground when the pillow butt, can directly carry sewage treatment device to the position of installation with the help of fork truck, be convenient for carry equipment, slide the slider into the spout through drive assembly, stop sliding the pillow at the same time with the bottom face of quick-witted case when the bottom face of pillow and the bottom face of quick-witted case, make the whole and ground contact of diapire of quick-witted case, ensure that equipment places the steadiness of installation.

The utility model discloses further set up to: drive assembly includes the board of accepting of vertical sliding connection in the mounting groove, be provided with on the quick-witted case and order about the gliding driving piece of board of accepting, it is provided with first dwang and second dwang on the board to accept, first dwang and second dwang one end overlap joint respectively in the top surface both sides of accepting the board, the other end of first dwang and second dwang overlap joint respectively on first pillow and second pillow, rotate through the pivot at first dwang and second dwang middle part and connect in the mounting groove, be provided with elastic element between pillow and the spout, elastic element one end fixed connection is on the pillow, and other end fixed connection is on the roof of spout.

When needing with pillow block roll-off from the spout, order about through the driving piece and accept the board and upwards slide, accept the board and upwards slide and promote the dwang one end that articulates in the mounting groove and upwards rotate, because the dwang middle part articulates in the mounting groove, the dwang other end overturns downwards and promotes pillow block roll-off downwards, realizes pillow block roll-off downwards, simple structure.

The utility model discloses further set up to: the driving piece comprises a worm wheel and a worm, a threaded rod is fixedly inserted in the center of the worm wheel along the vertical direction, a bearing plate which bears and is connected with the threaded rod in a rotating mode is arranged in the mounting groove, the bearing plate is connected to the threaded rod in a threaded mode, the worm is longitudinally arranged on one side of the worm wheel and meshed with the worm wheel, one end of the worm penetrates out of the case and extends to the outside of the case, and the other end of the worm is connected to the side wall of the mounting groove in a rotating mode.

Through rotating the worm, worm drive worm wheel rotates, and worm wheel rotates and drives the threaded rod and rotate, and the threaded rod rotates and orders about the slip vertical upwards of accepting the board with threaded connection of threaded rod, further realizes ordering about the vertical removal of pillow with the help of the linkage of dwang, and the structure of worm wheel and worm possesses good non-return effect, avoids the unexpected condition that moves into the spout of pillow.

The utility model discloses further set up to: the waste water inflow pipe is inserted on the case in a sliding mode, a linkage assembly is arranged between the first rotating rod and the waste water inflow pipe and comprises a linkage rod, a hinged plate is arranged at the bottom end of the waste water inflow pipe in an extending mode and is provided with a waist-shaped groove in the vertical direction, a rotating shaft is arranged on the waist-shaped groove and is connected to the waist-shaped groove in the vertical direction in a sliding mode, one end of the linkage rod is hinged to the side wall, away from one end of the bearing plate, of the first rotating rod, the other end of the linkage rod is fixedly connected with the rotating shaft, and the middle of the linkage rod.

Through adopting above-mentioned technical scheme, at the in-process of transport sewage treatment device, because the protruding one side of establishing at quick-witted case of waste water inflow pipe bumps very easily, causes the destruction, and through the linkage subassembly, when following the pillow from the spout roll-off, shrink back the waste water inflow pipe in the quick-witted case through the gangbar and can be fine solution waste water inflow pipe protruding establish at quick-witted case and cause the condition of destruction.

The utility model discloses further set up to: and the bottom end surface of the bearing plate is fixedly connected with a bearing sleeve, and the bearing sleeve is in threaded connection with a threaded rod.

Through adopting above-mentioned technical scheme, because the part of accepting board and threaded rod threaded connection is too little, and the sewage treatment device that promotes is overweight again, accepts the condition that takes place smooth silk very easily between board and the threaded rod, and through set up the accepting cover in the below of accepting the board, can increase the part of accepting board and threaded rod threaded connection for it can bear bigger pressure and be difficult for smooth silk to accept the board.

The utility model discloses further set up to: first dwang and second dwang overlap joint is greater than far away from the pivot to the one end on the board is accepted first dwang and second dwang overlap joint is in the distance of pillow one end to pivot.

Through adopting above-mentioned technical scheme, because sewage treatment device's weight is in the middle of, through adopting lever principle, first dwang and second dwang overlap joint are greater than first dwang and second dwang overlap joint and are being greater than the distance of pillow one end to the pivot far away at the one end of accepting on the board, rotate indirect drive through the worm and accept the board and promote first dwang and second dwang and can be more laborsaving when upwards sliding, operate light laborsaving more.

The utility model discloses further set up to: the worm rotates to be connected and has cup jointed first bearing in the one end of mounting groove lateral wall, first bearing fixed connection is on the lateral wall of mounting groove.

Through adopting above-mentioned technical scheme, establish first bearing through the pot head at the worm, first bearing fixed connection can avoid the worm to lead to the fact the worm can not smoothly the pivoted condition to take place with the lateral wall frictional force of mounting groove too big when rotating on the lateral wall of mounting groove, reduces the frictional resistance that rotates the in-process.

The utility model discloses further set up to: and a rod body is inserted on one end of the worm extending out of the case in a sliding manner.

Through adopting above-mentioned technical scheme, through the body of rod can be very convenient rotate the worm, and the body of rod provides longer arm of force for the operation of rotating the worm is light laborsaving more.

The utility model discloses further set up to: a through hole for the worm to pass through is formed in the case, and a second bearing is arranged between the through hole and the worm.

Through adopting above-mentioned technical scheme, set up the through-hole on quick-witted case and can be convenient for the worm to wear out, reduce the worm through the second bearing worm and through the frictional force of inner wall, can make the worm rotate more smoothly.

To sum up, the utility model discloses a beneficial technological effect does:

when sewage treatment equipment needs to be installed, the bearing plate is driven to slide upwards through the worm gear and worm, the bearing plate drives the pillow blocks in the sliding grooves to slide out of and abut against the ground through the first rotating rod and the second rotating rod, when the pillow blocks abut against the ground, the worm stops rotating when a forklift is inserted into the space between the ground and the bottom wall of the case, the sewage treatment equipment is conveyed to an installation position through the forklift, then the bearing plate is driven to slide downwards through the worm in a reverse rotating mode, the pillow blocks lose downward pressure of the first rotating rod and the second rotating rod on the pillow blocks, the pillow blocks retract into the sliding grooves, the bottom wall of the case is enabled to be completely contacted with the ground, and placement stability is;

2. in the process of carrying sewage treatment equipment, because the protruding one side of establishing at the quick-witted case of waste water inflow pipe bumps very easily and causes the destruction, when with pillow from the spout during roll-off, through the gangbar with waste water inflow pipe shrink back to the machine case in can be fine solution waste water inflow pipe protruding establish at the quick-witted case and the condition of easy damage appears.

Drawings

FIG. 1 is an overall view of the present embodiment;

FIG. 2 is a partial sectional view of the present embodiment;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

fig. 5 is an enlarged view at C in fig. 2.

Reference numerals: 1. a chassis; 2. a wastewater inflow pipe; 3. a first pillow block; 4. a second pillow block; 5. mounting grooves; 6. a carrier plate; 7. a worm gear; 8. a worm; 9. a threaded rod; 10. a bearing plate; 11. a first rotating lever; 12. a second rotating lever; 13. a rotation pin; 14. a rotating shaft; 18. an elastic element; 19. a first bearing; 20. a through hole; 21. a second bearing; 22. a rod body; 23. a hinge plate; 24. a rotating shaft; 25. a linkage rod; 26. a bearing sleeve; 27. a third bearing; 28. a chute; 29. a waist-shaped groove.

Detailed Description

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

As shown in figure 1, for the utility model discloses an indoor sewage treatment device of green building, including quick-witted case 1 and waste water inflow pipe 2, waste water inflow pipe 2 slides and pegs graft on a lateral wall of quick-witted case 1.

As shown in fig. 2 and 3, sliding grooves 28 are formed in two sides of the bottom end surface of the chassis 1, pillow blocks are slidably connected in the sliding grooves 28, each pillow block comprises a first pillow block 3 and a second pillow block 4, a driving assembly is arranged between the first pillow block 3 and the second pillow block 4, the driving assembly can drive the first pillow blocks 3 and the second pillow blocks 4 to slide out of the sliding grooves 28 simultaneously, a mounting groove 5 for mounting the driving assembly is formed in the chassis 1, and the mounting groove 5 is formed in the middle of the bottom wall of the chassis 1 along the length direction of the chassis 1.

As shown in fig. 2 and 4, a bearing plate 6 for bearing a driving assembly is arranged in the middle of the mounting groove 5, the bearing plate 6 is fixedly connected to the side walls of the two sides of the mounting groove 5, and the bottom wall of the bearing plate 6 is flush with the bottom wall of the case 1, the driving assembly comprises a driving part, the driving part comprises a worm wheel 7, a worm 8 and a threaded rod 9, the threaded rod 9 is arranged in the center of the bearing plate 6 along the vertical direction and is rotatably connected with the bearing plate, a third bearing 27 is sleeved at the bottom end of the threaded rod 9, the third bearing 27 is fixedly connected to the bearing plate 6, the top end of the bearing plate 6 is also sleeved with the third bearing 27, the third bearing 27 is fixedly connected to the top wall of the mounting groove 5, the center of the worm wheel 7 is inserted at the position of the threaded rod 9 close to the top end and is fixedly connected with the threaded rod 9, the worm 8 is longitudinally, the other end penetrates out of the case 1 and extends to the outside of the case 1.

In addition, a bearing plate 10 is arranged on the threaded rod 9, the bearing plate 10 is in threaded connection with the threaded rod 9 and is positioned below the worm wheel 7, two side walls of the bearing plate 10 are attached to two side walls of the installation groove 5 and is in vertical sliding connection with the installation groove 5, when the threaded rod 9 rotates, the bearing plate 10 can do vertical sliding motion, in order to increase the contact surface of the threaded connection of the bearing plate 10 and the threaded rod 9, a bearing sleeve 26 is arranged below the bearing plate 10, the bearing sleeve 26 is in threaded connection with the threaded rod 9, the top end surface of the bearing sleeve 26 is fixedly connected to the bottom surface of the bearing plate 10, a first rotating rod 11 is arranged between the bearing plate 10 and the first pillow block 3, a second rotating rod 12 is arranged between the bearing plate 10 and the second pillow block 4, one end of the first rotating rod 11 and one end of the second rotating rod 12 are lapped on the bearing plate 10, and the other end of the first rotating rod 11 and the second rotating, the middle parts of the first rotating rod 11 and the second rotating rod 12 are respectively connected on two side walls of the mounting groove 5 in a rotating way through a rotating shaft 14.

In order to prevent the pillow block from falling out of the chute 28 and to enable the pillow block sliding out to smoothly slide into the chute 28, the elastic element 18 is disposed between the pillow block and the chute 28, in this embodiment, the elastic element 18 is a tension spring, two tension springs are disposed on each pillow block, the two tension springs are respectively disposed on the upper surfaces of two sides of the pillow block, one end of each tension spring is fixedly connected to the pillow block, and the other end of each tension spring is fixedly connected to the top wall of the chute 28.

When the pillow blocks are required to slide out of the sliding groove 28, the worm 8 is rotated, the worm 8 drives the worm wheel 7 to rotate, the worm wheel 7 rotates to drive the threaded rod 9 to rotate, the worm 8 drives the bearing plate 10 to slide upwards, the bearing plate 10 sliding upwards pushes the first rotating rod 11 and the second rotating rod 12 to turn upwards, as the first rotating rod 11 and the second rotating rod 12 are hinged in the mounting groove 5 through the rotating shaft 14, when one end of the first rotating rod 11 and one end of the second rotating rod 12 turn upwards, the other end of the first rotating rod 11 and the other end of the second rotating rod 12 turn downwards, one end of the first rotating rod 11 and one end of the second rotating rod 12 turning downwards drive the first pillow block 3 and the second pillow block 4 to slide out of the sliding groove 28, the separation of the case 1 and the ground is realized, when the case 1 is required to be attached to the ground, the worm 8 is rotated in the opposite direction, the worm 8 drives the bearing plate 10 to slide downwards through the worm wheel 7, case 1 is pressing first pillow 3 and second pillow 4 under the effect of gravity and is sliding in to spout 28, and when case 1 bottom face and ground laminating, stall worm 8, the extension spring can avoid sewage treatment device in the in-process of transportation simultaneously, and the pillow drops from sewage treatment device.

As shown in fig. 2 and fig. 3, wherein the distance from one end of the first rotating rod 11 and the second rotating rod 12 lapped on the receiving plate 10 to the rotating shaft 14 is far greater than the distance from one end of the first rotating rod 11 and the second rotating rod 12 lapped on the pillow block to the rotating shaft 14, so that the worm 8 rotated by people is more labor-saving, and meanwhile, the position of the rotating shaft 14 also ensures that the first rotating rod 11 and the second rotating rod 12 can slide out of the sliding groove 28 when the receiving plate 10 is driven, and the bottom wall of the case 1 can be separated from the ground by the sliding pillow block, so that the distance can be used for inserting a forklift, and the case can be conveniently carried.

In addition, for enabling the worm 8 to rotate more smoothly, a first bearing 19 is arranged at the rotational connection position of the worm 8 and the side wall of the mounting groove 5, the first bearing 19 is sleeved on the worm 8, the first bearing 19 is fixedly connected to the side wall of the mounting groove 5, the first bearing 19 enables the worm 8 to rotate more smoothly, meanwhile, a through hole 20 for the worm 8 to pass through is formed in the case 1, a second bearing 21 is arranged between the through hole 20 and the worm 8, the second bearing 21 is sleeved on the worm 8 and attached to the inner wall of the through hole 20, in addition, for the worm 8 to rotate, a rod body 22 is inserted in one end, far away from the case 1, of the worm 8 in a sliding mode, and the worm 8 can be rotated very conveniently through the rod body 22 when the worm 8 is.

As shown in fig. 2 and 5, two hinge plates 23 are extended and arranged below the side wall of the wastewater inflow pipe 2 near one end of the bearing plate 10, the hinge plates 23 are arranged at two sides of the wastewater inflow pipe 2 along the horizontal direction, a kidney-shaped groove 29 is arranged on the side wall of the hinge plate 23 along the vertical direction, the kidney-shaped groove 29 penetrates through the hinge plates 23, a rotating shaft 24 is arranged in the hinge plates 23, two ends of the rotating shaft 24 are respectively inserted into the kidney-shaped holes of the hinge plates 23 at two sides below the wastewater inflow pipe 2 and can slide up and down in the kidney-shaped groove 29, a linkage assembly is arranged between the first rotating rod 11 and the wastewater inflow pipe 2, the linkage assembly comprises a linkage rod 25, one end of the linkage rod 25 is hinged on the upper surface of the first rotating rod 11 far from one end of the bearing plate 10, the other end is fixedly connected to the rotating shaft 24, and a rotating pin, the rotating pin 13 is fixedly inserted on the case 1 and is rotatably connected with the linkage rod 25, and in addition, a rotating groove for rotating the linkage rod 25 is formed in the case 1 for facilitating the rotation of the linkage rod 25.

When the end of the first rotating rod 11, which is far away from the bearing plate 10, is turned downwards, the first rotating rod 11 drives the wastewater inflow pipe 2 to shrink towards one side of the case 1 through the linkage rod 25, and when the end of the first rotating rod 11, which is far away from the bearing plate 10, is turned upwards, the first rotating rod 11 drives the wastewater inflow pipe 2 to extend towards one side of the case 1 through the linkage rod 25, so that the wastewater inflow pipe 2 is shrunk on the case 1.

The distance from one end of the linkage rod 25 hinged on the first rotating rod 11 to the rotating pin 13 is far less than the distance from the other end of the linkage rod to the rotating pin 13, and through the arrangement, the range of moving the wastewater inflow pipe 2 can be enlarged, so that the wastewater inflow pipe 2 can completely slide into the case 1.

The implementation principle of the embodiment is as follows: when sewage treatment equipment needs to be carried, the worm 8 is rotated through the rod body 22, the worm 8 drives the worm wheel 7 to rotate, the worm wheel 7 drives the threaded rod 9 to rotate, so that the bearing plate 10 on the threaded rod 9 moves upwards, the bearing plate 10 drives one end of the first rotating rod 11 and one end of the second rotating rod 12 to overturn upwards, the first rotating rod and the second rotating rod are hinged in the mounting groove 5, so that the other end of the first rotating rod 11 and the other end of the second rotating rod 12 drive the pillow blocks to slide out of the sliding grooves 28, the case 1 is separated from the ground under the driving of the pillow blocks, when the case 1 is separated from the ground, so that a forklift can be inserted, the worm 8 stops rotating, when one end of the first rotating rod 11, which is far away from the bearing plate 10, slides downwards, the wastewater inflow pipe 2 is driven to shrink towards the case 1 through the linkage rod 25, the wastewater inflow pipe 2 is prevented from being damaged and deformed during, the worm 8 is rotated towards the opposite direction, the worm 8 drives the worm wheel 7 to rotate towards the opposite direction, the bearing plate 10 slides downwards on the threaded rod 9, one end of the rotating rod, far away from the bearing plate 10, is separated from the pillow block, the pillow block slides into the sliding groove 28 under the action of the gravity of the case 1, when the bottom wall of the pillow block is flush with the bottom wall of the case 1, the worm 8 stops rotating, and meanwhile, when one end of the first rotating rod 11, far away from the bearing plate 10, is turned upwards, the waste water inflow pipe 2 is driven to slide out towards the outer side of the case 1 through the linkage rod 25, so that the waste water inflow pipe 2 is convenient to be connected with other parts, and the embodiment is more suitable for sewage.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides an indoor sewage treatment device that uses of green building, includes quick-witted case (1), one side of quick-witted case (1) is provided with waste water inflow pipe (2), its characterized in that: the improved structure of the motor cabinet is characterized in that sliding grooves (28) are formed in two sides of the bottom end portion of the motor cabinet (1), pillow blocks are connected in the sliding grooves (28) in a vertical sliding mode and comprise first pillow blocks (3) and second pillow blocks (4), a driving assembly for driving the first pillow blocks (3) and the second pillow blocks (4) to slide in and out is arranged on the motor cabinet (1), and a mounting groove (5) for mounting the driving assembly is formed in the motor cabinet (1).

2. The indoor sewage treatment equipment for green buildings according to claim 1, wherein: the driving component comprises a bearing plate (10) which is vertically connected in the mounting groove (5) in a sliding manner, a driving piece for driving the bearing plate (10) to slide is arranged on the case (1), a first rotating rod (11) and a second rotating rod (12) are arranged on the bearing plate (10), one end of the first rotating rod (11) and one end of the second rotating rod (12) are respectively lapped on the two sides of the top surface of the bearing plate (10), the other ends of the first rotating rod (11) and the second rotating rod (12) are respectively lapped on the first pillow block (3) and the second pillow block (4), the middle parts of the first rotating rod (11) and the second rotating rod (12) are rotatably connected in the mounting groove (5) through a rotating shaft (14), an elastic element (18) is arranged between the pillow block and the sliding groove (28), one end of the elastic element (18) is fixedly connected to the pillow block, and the other end of the elastic element is fixedly connected to the top wall of the sliding groove (28).

3. The sewage treatment equipment for green building indoor according to claim 2,

the method is characterized in that: the driving piece comprises a worm wheel (7) and a worm (8), a threaded rod (9) is fixedly inserted into the center of the worm wheel (7) in a vertical direction, a bearing plate (6) which bears and is rotationally connected with the threaded rod (9) is arranged in the mounting groove (5), the bearing plate (10) is in threaded connection with the threaded rod (9), the worm (8) is vertically arranged on one side of the worm wheel (7) and meshed with the worm wheel (7), one end of the worm (8) penetrates out of the case (1) and extends to the outside of the case (1), and the other end of the worm (8) is rotationally connected onto the side wall of the mounting groove (5).

4. The indoor sewage treatment equipment for green buildings according to claim 2, wherein: the waste water inflow pipe (2) is connected onto the case (1) in a sliding and inserting mode, a linkage assembly is arranged between the first rotating rod (11) and the waste water inflow pipe (2), the linkage assembly comprises a linkage rod (25), a hinged plate (23) is arranged at the bottom end of the waste water inflow pipe (2) in an extending mode, a waist-shaped groove (29) is formed in the hinged plate (23) along the vertical direction, a rotating shaft (24) is arranged on the waist-shaped groove (29), the rotating shaft (24) is connected into the waist-shaped groove (29) in a sliding mode along the vertical direction, one end of the linkage rod (25) is hinged to the side wall, away from one end of the bearing plate (10), of the first rotating rod (11), the other end of the linkage rod is fixedly connected with the rotating shaft (24), and the middle of.

5. The indoor sewage treatment equipment for green buildings according to claim 2, wherein: the bottom end face of the bearing plate (10) is fixedly connected with a bearing sleeve (26), and the bearing sleeve (26) is in threaded connection with the threaded rod (9).

6. The indoor sewage treatment equipment for green buildings according to claim 2, wherein: first dwang (11) and second dwang (12) overlap joint are greater than far away to pivot (14) in the one end of accepting board (10) first dwang (11) and second dwang (12) overlap joint are in the distance of pillow one end to pivot (14).

7. The indoor sewage treatment equipment for green buildings according to claim 3, wherein: the worm (8) is rotatably connected to one end of the side wall of the mounting groove (5) in a sleeved mode and is provided with a first bearing (19), and the first bearing (19) is fixedly connected to the side wall of the mounting groove (5).

8. The indoor sewage treatment equipment for green buildings according to claim 3, wherein: and a rod body (22) is inserted on one end of the worm (8) extending out of the case (1) in a sliding manner.

9. The indoor sewage treatment equipment for green buildings according to claim 3, wherein: a through hole (20) for the worm (8) to pass through is formed in the case (1), and a second bearing (21) is arranged between the through hole (20) and the worm (8).

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