Green building design device based on BIM technology

By designing a unidirectional structure and air jet device within the support frame, airflow is used to prevent screen wrinkles and remove dust, solving the problems of screen wrinkles and dust accumulation in existing equipment and improving the projection effect.

CN223692636UActive Publication Date: 2025-12-19SHENYANG JIANZHU UNIVERSITY
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Patent Information

Application Number
CN202520297417.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-12-19
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

In existing technologies, projector screens tend to wrinkle when rolled up after use, and dust gets trapped inside. When the screen is rolled up, the dust on the surface of the screen reduces the projection display effect.

Method used

One well-designed method uses a unidirectional structure with the roller installed inside the support frame to drive the air jet structure. Through the unidirectional structure inside the support frame, airflow is used to blow the curtain, preventing wrinkles and removing dust.

Benefits of technology

This resulted in a flat and clean screen, improving the projection effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223692636U_ABST
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Abstract

The utility model relates to the technical field of green building design, in particular to a green building design device based on the BIM technology. Connectors are arranged on the inner sides of the supporting frames, a housing is connected between the two connectors, a reel is rotatably mounted in the housing, a curtain is wound on the reel, a counterweight strip is connected to the bottom end of the curtain, a motor is arranged on the outer side of one supporting frame, a main driving shaft is connected to the front end of the motor, the reel is connected to the main driving shaft, and the counterweight strip is connected to the other supporting frame. An air injection structure is arranged on the other supporting frame, and the main driving shaft drives the air injection structure through a one-way structure arranged in the supporting frame; according to the utility model, the small fan is designed, the curtain can be blown to two sides by utilizing airflow, wrinkles are prevented, and dust on the surface of the curtain is blown down to reduce dust attachment, so that the use effect reduction caused by dust attachment is reduced; according to the utility model, a one-way structure is designed, the small fan is automatically started when the curtain is folded, and the small fan is not started when the curtain is put down.
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Description

TECHNICAL FIELD

[0001] The utility model relates to green building design technical field, concretely relates to a green building design device based on BIM technique. BACKGROUND

[0002] BIM is a kind of technology and method with digitalization as core, is used to create, manage and use the digitalization model of building in the whole life cycle of building project.It is not only a three-dimensional design tool, is a kind of collaborative platform that integrates the geometric information, physical properties and functional data of building into unified model, needs to frequently communicate and show in building design, thus needs to use projector to cooperate curtain to show, but the existing equipment is prone to wrinkle when curtain is retracted, simultaneously also very easy to bring dust inclusion, dust is pressed to cause adhesion aggravation when rolling up, and the effect of projection display is reduced in turn. UTILITY MODEL CONTENT

[0003] The utility model aims at the defects and insufficient of prior art, provides a kind of green building design device based on BIM technique, which can solve the above-mentioned defects.

[0004] To achieve the above object, the utility model adopts the following technical scheme: it contains two support frames, the inner side of support frame is equipped with connector, the cover is connected between the two connectors, the reel is rotatably installed in the cover, the curtain is rolled on the reel, the curtain bottom end is connected with counterweight strip, the outer side of one support frame is equipped with motor, the motor front end is connected with main drive shaft, the reel is connected on main drive shaft, the other support frame is equipped with air jet structure, and the main drive shaft drives the air jet structure through the one-way structure arranged in the support frame.

[0005] Preferably, the air jet structure includes a small fan mounted on the outer side of the support frame, a connecting pipe is connected to the air outlet of the small fan, two air jet pipes are connected to the connecting pipe, and the two air jet pipes are arranged on both sides of the curtain outlet of the cover, respectively. A plurality of air jets are provided on the air jet pipe.

[0006] Preferably, the air jets are divided into two groups, and the two groups of air jets are symmetrically arranged at both ends of the air jet pipe. Each group of air jets is inclined outward, and the air jets are arranged towards the curtain.

[0007] Preferably, the main drive shaft is connected to a speed increaser, the speed increaser is arranged in the support frame where the air jet structure is installed, and the output end of the speed increaser is connected to a connecting shaft for driving the small fan.

[0008] Preferably, the one-way structure comprises a driven turntable rotatably mounted in the support frame through a bearing, the rear end of the driven turntable is drivenly connected to the small fan through a fan rotating shaft, the head of the connecting shaft is connected with a ratchet wheel, the ratchet wheel is arranged in the driven turntable, and a plurality of pawls matched with the ratchet wheel are arranged in the driven turntable.

[0009] After the above structure is adopted, the beneficial effects of the utility model are as follows:

[0010] 1. The utility model discloses a small fan, which can blow the curtain to both sides by air flow, prevent from generating the wrinkle, blow the dust on the curtain surface down simultaneously, reduce dust adhesion, and further reduce the use effect decline caused by dust adhesion.

[0011] 2. The utility model discloses a one-way structure, the small fan is automatically started when the curtain is retracted, and will not be started when being put down, realizes simple control, and prevents the small fan from reversing. DRAWINGS

[0012] Figure 1 It is the external structure schematic diagram of the utility model;

[0013] Figure 2 It is the partial sectional view of the utility model;

[0014] Figure 3 It is the sectional view of the one-way structure in the utility model;

[0015] Figure 4 It is the internal structure schematic diagram of the driven turntable in the utility model.

[0016] MARKS DESCRIPTION:

[0017] 1, support frame;2, connector;3, cover;4, reel;5, curtain;6, motor;7, speed increaser;8, main drive shaft;9, ratchet wheel;10, driven turntable;11, pawl;12, small fan;

[0018] 13, connecting pipe;14, air jet pipe;15, air jet head;16, connecting shaft;17, fan rotating shaft. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Refer to Figures 1-3As shown, it comprises two support frames 1, the inside of the support frame 1 is provided with a connector 2, the two connectors 2 are connected with a cover 3, the cover 3 is rotatably installed with a reel 4, the reel 4 is wound with a curtain 5, the bottom end of the curtain 5 is connected with a counterweight strip, one of the support frames 1 is provided with a motor 6, the front end of the motor 6 is connected with a main drive shaft 8, the reel 4 is connected to the main drive shaft 8, the other support frame 1 is provided with a jet structure, the main drive shaft 8 drives the jet structure through the one-way structure arranged in the support frame 1;

[0021] The jet structure comprises a small fan 12 mounted on the outside of the support frame 1, the outlet of the small fan 12 is connected with a connecting pipe 13, the connecting pipe 13 is connected with two jet pipes 14, the two jet pipes 14 are respectively arranged at the two sides of the outlet of the curtain 5 on the cover 3, and the jet pipe 14 is provided with a plurality of jet heads 15;

[0022] The jet head 15 is divided into two groups, and the two groups of jet heads 15 are symmetrically arranged at the two ends of the jet pipe 14, each group of jet heads 15 is inclined outward, and the jet head 15 is arranged towards the curtain 5;

[0023] The main drive shaft 8 is connected with a speed increaser 7, the speed increaser 7 is arranged in the support frame 1 where the jet structure is installed, and the output end of the speed increaser 7 is connected with a connecting shaft 16 for driving the small fan 12;

[0024] The one-way structure comprises a driven turntable 10 rotatably installed in the support frame 1 through a bearing, the rear end of the driven turntable 10 is driven and connected to the small fan 12 through a fan rotating shaft 17, the head of the connecting shaft 16 is connected with a ratchet wheel 9, the ratchet wheel 9 is arranged in the driven turntable 10, and a plurality of pawls 11 matched with the ratchet wheel 9 are arranged in the driven turntable 10.

[0025] The principle and use process of the utility model:

[0026] In use, the motor 6 is started, the motor 6 drives the reel 4 to rotate through the main drive shaft 8, and then the curtain 5 is lowered, in this process, the main drive shaft 8 drives the connecting shaft 16 to rotate through the speed increaser 7, and at this time, the pawl 11 and the ratchet wheel 9 cannot be driven due to the rotation direction, and the small fan 12 is not started;

[0027] When the curtain 5 needs to be retracted, the motor 6 is started in reverse, the motor 6 drives the curtain 5 to retract, and at the same time, after speed increasing through the speed increaser 7, the motor 6 drives the ratchet wheel 9 to rotate, at this time, the ratchet wheel 9 is engaged with the pawl 11, the ratchet wheel 9 drives the driven turntable 10 to rotate through the pawl 11, and then the small fan 12 starts to work through the fan rotating shaft 17, air flow is generated, the air flow is sprayed out through the jet head 15 after being sent into the jet pipe 14, on the one hand, the curtain 5 is pushed to the two sides to prevent wrinkles, and on the other hand, the air flow blows the dust attached to the surface of the curtain 5 to reduce the decline of the projection effect caused by dust attachment.

[0028] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A green building design device based on BIM technology, comprising two support frames (1), characterized in that: The support frame (1) is provided with a connector (2), two connectors (2) are connected with a cover (3), the cover (3) is rotatably installed with a reel (4), the reel (4) is wound with a curtain (5), the curtain (5) is connected with a counterweight strip, one support frame (1) is provided with a motor (6), the motor (6) is connected with a main drive shaft (8), the reel (4) is connected to the main drive shaft (8), the other support frame (1) is provided with a jet structure, the main drive shaft (8) drives the jet structure through the one-way structure arranged in the support frame (1).

2. The green building design device based on BIM technology according to claim 1, characterized in that: The jet structure comprises a small fan (12) mounted on the outer side of the support frame (1), the outlet of the small fan (12) is connected with a connecting pipe (13), the connecting pipe (13) is connected with two jet pipes (14), the two jet pipes (14) are arranged on both sides of the curtain (5) outlet of the cover (3), and a plurality of jet heads (15) are arranged on the jet pipes (14).

3. The green building design device based on BIM technology according to claim 2, characterized in that: The jet head (15) is divided into two groups, and the two groups of jet heads (15) are symmetrically arranged at both ends of the jet pipe (14), each group of jet heads (15) is inclined outward, and the jet head (15) is arranged towards the curtain (5).

4. The green building design device based on BIM technology according to claim 3, characterized in that: The main drive shaft (8) is connected with a speed increaser (7), the speed increaser (7) is arranged in the support frame (1) where the jet structure is arranged, and the output end of the speed increaser (7) is connected with a connecting shaft (16) for driving the small fan (12).

5. The green building design device based on BIM technology according to claim 4, characterized in that: The one-way structure comprises a driven turntable (10) rotatably installed in the support frame (1) through a bearing, the rear end of the driven turntable (10) is driven and connected to the small fan (12) through a fan rotating shaft (17), the head of the connecting shaft (16) is connected with a ratchet wheel (9), the ratchet wheel (9) is arranged in the driven turntable (10), and a plurality of pawls (11) matched with the ratchet wheel (9) are arranged in the driven turntable (10).