A BIM-based building ventilation duct installation auxiliary device

Abstract

The present application provides a ventilation duct installation auxiliary device for BIM-based buildings, which belongs to the field of BIM construction technology. Its technical solution is: a seat is arranged on the top of the telescopic mechanism, and footrest components are symmetrically arranged on both sides of the telescopic mechanism. A trigger mechanism is arranged on the side of the telescopic mechanism in the middle of the footrest component, and the trigger mechanism is arranged on the upper part of the footrest component. A support component is arranged at the bottom of the telescopic mechanism, and a walking mechanism is symmetrically arranged on both sides of the supporting component. The beneficial effects of the present application are: the telescopic mechanism in the present application has a telescopic function, can drive the supporting component away from the ground or contact the ground, the supporting component has a supporting function, and can bear the weight of the entire operator, the footrest component is used to place the operator's feet and facilitate the operator to stand, the operator sits on the seat, the trigger mechanism provides a power source, the entire telescopic mechanism realizes the telescopic function through the triggering of the trigger mechanism, and the walking component facilitates movement.

Description

Technical Field

[0001] The present application relates to the field of BIM construction technology, and in particular to a ventilation duct installation auxiliary device for BIM-based buildings. Background Art

[0002] BIM stands for Building Information Modeling, which is a complete information model that can integrate the engineering information, processes and resources of different stages of the project life cycle into one model, which can be easily used by all parties involved in the project. It simulates the real information of the building through three-dimensional digital technology, and provides a mutually coordinated and internally consistent information model for engineering design and construction, so that the model can achieve the integration of design and construction, and various disciplines can work together, thereby reducing the production cost of the project and ensuring that the project is completed on time and with quality.

[0003] In order to facilitate the workers to install the ventilation ducts of the BIM building model, the scaffolding usually used is temporarily built with herringbone ladders or tables, chairs and benches. The working position needs to be changed frequently during operation, so the workers need to go up and down frequently, which is not only unsafe, inconvenient, but also time-consuming, labor-intensive and labor-intensive.

[0004] There are ladders on the market that do not require manual movement, such as the one published by the Chinese invention patent with authorization announcement number CN106930680B and the name of "A Mobile Ladder". The staff sits on the seat to work and steps on the driving pedal. The driving pedal drives the worm to rotate through the eccentric wheel, and the worm drives the pulley to rotate through the worm wheel. The pulley drives the driving wheel to rotate through the belt, so that the ladder can be moved horizontally; when the direction needs to be adjusted, the staff rubs the pedal wheel with the other foot to make it rotate, and the steering pedal drives the pinion to rotate through the bevel gear combination, thereby driving the steering wheel to adjust the direction through the steering gear. The patent disclosed in this disclosure has the following disadvantages: first, when the ladder needs to be moved horizontally, one foot needs to step on the pedal, and the foot needs to exert force continuously, which will cause the operator's body to have an unstable center of gravity and easily produce fatigue. When the ladder needs to turn, the other foot needs to rub the pedal wheel to make it turn, and the foot also needs to exert force continuously, which will cause the operator's body to have an unstable center of gravity and easily produce fatigue. If the two feet are not careful to exert force at the same time, the ladder will move and turn at the same time, which is easy to roll over, posing a safety hazard; second, when there is an obstacle on the ground, the disclosed ladder cannot avoid the obstacle and will roll over;

[0005] There is another type of ladder that does not require manual movement on the market, such as the Chinese utility model with authorization announcement number CN2692259Y and the name "Self-propelled scaffolding platform". After the operator sits on the seat, the spring is compressed to make the drive wheel contact the ground. When it is necessary to move, the pedal is stepped on, and the wheel and chain transmit power to the flywheel to rotate the drive wheel, thereby achieving the purpose of moving forward or backward. The disclosed ladder does not have the technical problem of one foot exerting force, but the disclosed patent has the following disadvantages: the operator cannot stand on the ladder and can only work while sitting, and cannot perform construction at different heights.

[0006] In general, the above method can solve the problem of workers frequently going up and down the ladder to a certain extent, but there are still the following technical problems: (1) Operators can only sit on the ladder to work, and cannot stand, and cannot perform construction at different heights; (2) There are wheels at the bottom of the ladder. When there is no need to move or turn, the bottom of the ladder is only supported by the wheels, resulting in point contact with the ground. The contact area is small, and if it encounters an inclined ground, it is easy to slip. (3) The turning or translation of the ladder through the wheels cannot avoid obstacles.

[0007] Contents of this application

[0008] The purpose of this application is to provide a ventilation duct installation auxiliary device for BIM-based buildings to solve the technical problems that operators cannot stand on ladders, ladders are prone to slipping, and ladders cannot avoid obstacles during movement.

[0009] This application is achieved through the following measures:

[0010] A ventilation duct installation auxiliary device for BIM-based buildings comprises a telescopic mechanism, a seat is arranged on the top of the telescopic mechanism, footrest components are symmetrically arranged on both sides of the telescopic mechanism, a trigger mechanism is arranged on the side of the telescopic mechanism in the middle of the footrest component, the trigger mechanism is arranged on the upper part of the footrest component, a supporting component is arranged at the bottom of the telescopic mechanism, walking mechanisms are symmetrically arranged on both sides of the supporting component, the walking mechanism is arranged at the lower part of the footrest component and is arranged corresponding to the footrest component, in an initial state, the walking mechanism does not move and supports the telescopic mechanism, when the seat is subjected to a downward force, the telescopic mechanism drives the supporting component to move toward the ground until it contacts the ground, when the force on the seat disappears, the trigger mechanism drives the seat to move toward the top of the telescopic mechanism, thereby driving the supporting component away from the ground, when the telescopic mechanism needs to be moved, the force on the seat is canceled, the walking mechanism is started, and the walking mechanism realizes the movement of the telescopic mechanism.

[0011] Furthermore, a guardrail is provided on the footrest component, the guardrail is in a circular shape, and the guardrail is provided on the upper end of the seat.

[0012] Further, the telescopic mechanism includes a main body, which includes an upper part and a lower part. The upper part of the main body is a hollow cylinder, and the lower part of the main body is a hollow cone. An exit hole is provided on the cone, and a partition is provided at the junction of the cylinder and the cone. A through hole is provided on the partition, and the through hole corresponds to the exit hole. Guide rails are symmetrically provided on the inner side of the cylinder, and guide grooves are provided on the guide rails. A limited through hole is provided on the side of the main body, and the limited through hole includes a limited through hole A and a limited through hole B. The limited through hole A is provided at the lower part of the limited through hole B, and the part where the upper part of the limited through hole B is connected to the main body is an inclined surface, and part A is formed between the lower part of the limited through hole B and the upper part of the limited through hole A, and part B is formed where the lower part of the limited through hole A is connected to the main body. The thickness of part A is less than the thickness of part B, and the body A movable part is arranged inside, and the movable part is cylindrical. Guide strips are symmetrically arranged on both sides of the movable part, and the guide strips are arranged in the guide grooves. A spring sheet is arranged on the side surface of the movable part, one end of the spring sheet is pivotally connected to the movable part, and the other end is arranged with a hook body, and the hook body moves in the limiting through hole A and the limiting through hole B, and the end surface of the hook body away from the spring sheet is an inclined surface A. A push rod is arranged in the body, one end of the push rod is arranged inside the body and abuts against the lower end of the movable part, and the other end of the push rod passes through the through hole and the outlet hole and is arranged on the outside of the body, a protrusion is arranged on the outer circumference of the push rod, a spring is arranged between the protrusion and the partition, and the spring is arranged on the push rod, the seat is arranged at the upper end of the movable part, and the supporting component is arranged on the push rod arranged on the outside of the body.

[0013] Furthermore, the pedal component includes a pedal plate, one end of which is fixedly connected to the outer side surface of the main body, and the other end of the pedal plate is provided with a handrail, one end of the handrail is fixedly connected to the pedal plate, and the other end is provided with the guardrail, and the axis of the handrail is parallel to the axis of the main body.

[0014] Further, the trigger mechanism is arranged on the outside of the main body, and the trigger mechanism includes a substrate, a baffle is arranged on the substrate, a through hole is arranged on the baffle, guide protrusions are symmetrically arranged on both sides of the substrate, guide holes are arranged on the guide protrusions, a slider is arranged between the guide protrusions, the slider includes a middle part and two end parts, the middle part is provided with a fixing rod, the fixing rod passes through the through hole and is arranged on the outside of the baffle and is arranged opposite to the limiting through hole A, a spring A is arranged on the fixing rod, one end of the spring A is fixedly connected to the baffle, and the other end is fixedly connected to the middle part, guide blocks are arranged at both ends of the slider, and the guide blocks are arranged in the guide holes, an axial hole is arranged on the substrate, a transmission shaft is arranged in the axial hole, the transmission shaft passes through the substrate, one end is arranged on the upper end of the substrate, and the other end is arranged on the lower end of the substrate, a cam is arranged on the transmission shaft arranged at the upper end of the substrate, and a motor is arranged on the transmission shaft arranged at the lower end of the substrate.

[0015] Furthermore, the support component includes a support upper end and a support lower end, the support upper end is fixedly connected to one end of the top rod arranged on the outside of the main body, and the support lower end is evenly distributed with support legs, the support legs include a support portion and a bending portion, and the support portion is fixedly connected to the bending portion at 90 degrees.

[0016] Furthermore, a positioning plate is symmetrically arranged on the outer side of the main body at the lower part of the pedal, and the walking mechanism is arranged on the positioning plate.

[0017] Furthermore, the walking mechanism includes a fixed gear ring, the fixed gear ring is fixedly connected to the positioning plate, a gear is arranged inside the fixed gear ring, the teeth of the gear are meshed with the teeth of the fixed gear ring, an eccentric shaft is arranged at the rear side of the gear, a base frame is arranged at the rear side of the fixed gear ring, the base frame includes an upper end portion and a lower end portion of the base frame, the upper end portion of the base frame is fixedly connected to the fixed gear ring, an eccentric shaft hole is arranged at the upper end portion of the base frame, and the eccentric shaft of the gear is arranged in the eccentric shaft hole, An extension portion is formed by extending outward from the upper end of the base frame, and a motor B is provided on the extension portion. A cross bar is provided on the lower end of the base frame, a slide groove is provided in the cross bar, a slider A is provided in the slide groove, a card slot is provided on the slider A, a connecting rod A is provided in the card slot, a support plate is provided at the lower end of the connecting rod A, a connecting rod B is provided at the upper end of the connecting rod A, one end of the connecting rod B is pivotally connected to the upper end of the connecting rod A, and the other end of the connecting rod B is concentrically arranged with the gear hole of the gear, and a pin is provided at the concentric position.

[0018] The beneficial effects of this application are:

[0019] 1. The telescopic mechanism in the present application has a telescopic function and can drive the supporting component away from the ground or contact the ground. The supporting component has a supporting function and can bear the weight of the entire operator. The function of the footrest component is to place the operator's feet and facilitate the operator to stand. The operator sits on the seat. The trigger mechanism provides a power source. The entire telescopic mechanism realizes the telescopic function through the triggering of the trigger mechanism. The function of the walking component is to facilitate movement.

[0020] 2. The guardrail has a protective function to prevent the operator from falling from the device.

[0021] 3. The upper part of the main body is a hollow cylinder, which is convenient for placing the movable parts. The movable parts provide a place for the installation of the seat. The cone is used to place the ejector rod. The movable parts are in contact with the ejector rod. The ejector rod moves up and down in the cone through the up and down movement of the movable parts. The through holes on the partition and the outlet holes on the cone are convenient for inserting the ejector rod. The guide rail has a guiding function. The guide groove and the guide strip cooperate to have a limiting function, which can ensure that the movable rod moves vertically in the main body. The spring sheet has the function of elastic deformation. The spring sheet undergoes elastic deformation, driving the hook body to move in the limiting through hole A and the limiting through hole B. The hook body is set in the limiting through hole A or the limiting through hole B and has a locking function. The distance of the ejector rod's extension and contraction is the distance between the limiting through hole A and the limiting through hole B. A protrusion is set on the outer circumference of the ejector rod. The protrusion cooperates with the partition to fix the spring. The spring has a buffering function.

[0022] 4. The pedal is convenient for placing the operator's feet, and the handrail is convenient for the operator to hold on to.

[0023] 5. The base plate has a load-bearing function, the baffle is used to limit the fixed rod and provide a place for the movement of the fixed rod, the guide protrusion has a guiding function, the guide hole and the guide block have a limiting function, the motor provides a constant power source, drives the cam to rotate, the cam touches the slider, and realizes the telescopic function of the fixed rod. The spring has a buffering function.

[0024] 6. The function of the supporting component is to support the entire telescopic mechanism and the weight of the operator.

[0025] 7. The function of the positioning plate is to facilitate the fixing of the walking mechanism.

[0026] 8. The function of the fixed gear ring is to provide the track for the gear to travel. The function of the eccentric shaft set at the rear side of the gear is to ensure that the teeth of the gear are engaged with the teeth of the fixed gear ring. The function of the upper end of the base frame is to install the eccentric shaft, and the function of the lower end of the base frame is to install the slider A. The slot on the slider A is used to fix the connecting rod A, and the support plate has the function of supporting and bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a schematic diagram of the structure of this application.

[0028] Figure 2 It is a structural schematic diagram of the telescopic mechanism.

[0029] Figure 3 It is a cross-sectional view of the telescopic mechanism.

[0030] Figure 4 for Figure 3 A partial enlarged view of point A.

[0031] Figure 5 for Figure 3 A local enlarged view of point B.

[0032] Figure 6 A cross-sectional view of the body.

[0033] Figure 7 It is a structural diagram of the movable parts.

[0034] Figure 8 It is a structural schematic diagram of the trigger mechanism.

[0035] Fig. 9 A schematic diagram of the structure of the supporting components.

[0036] Fig.10 It is a structural diagram of the walking mechanism.

[0037] Among them, the accompanying drawings are marked as follows: 1. telescopic mechanism; 11. body; 111. partition; 1111. through hole; 112. guide rail; 1121. guide groove; 113. limit through hole; 1131. limit through hole A; 1132. limit through hole B; 114. positioning plate; 12. movable part; 121. guide strip; 122. spring sheet; 1221. hook body; 13. push rod; 131. protrusion; 14. spring; 8. seat; 3. pedal component; 31. pedal plate; 32. handrail; 4. trigger mechanism; 41. base plate; 411. baffle; 4111. perforation; 412. guide protrusion; 4121. guide To the hole; 42, slider; 421, fixed rod; 422, guide block; 43, spring; 44, transmission shaft; 45, cam; 46, motor 5, support component; 51, support upper end; 52, support lower end; 521, support leg; 5211, support part; 5212, bending part; 6, walking mechanism; 61, fixed gear ring; 62, gear; 63, base frame; 631, upper end of base frame; 632, lower end of base frame; 6321, cross bar; 63211, slide groove; 64, motor B; 65, slider A; 651, slot; 66, connecting rod A; 661, support plate; 67, connecting rod B; 7, guardrail. DETAILED DESCRIPTION

[0038] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0039] See also Figures 1 to 7 The present application is a ventilation duct installation auxiliary device for BIM-based buildings, including a telescopic mechanism 1, the telescopic mechanism 1 includes a body 11, the body 11 includes an upper part and a lower part, the upper part of the body 11 is a hollow cylinder, the lower part of the body 11 is a hollow cone, an outlet hole is arranged on the cone, a partition 111 is arranged at the junction of the cylinder and the cone, a through hole 1111 is arranged on the partition 111, the through hole 1111 corresponds to the outlet hole, a guide rail 112 is symmetrically arranged on the inner side of the cylinder, and the guide rail A guide groove 1121 is provided on the body 112, and a limiting through hole 113 is provided on the side of the body 11. The limiting through hole 113 includes a limiting through hole A1131 and a limiting through hole B1132. The limiting through hole A1131 is provided at the lower part of the limiting through hole B1132. The upper part of the limiting through hole B1132 is connected to the body 11 at an inclined surface. A portion A is formed between the lower part of the limiting through hole B1132 and the upper part of the limiting through hole A1131. The lower part of the limiting through hole A1131 is connected to the body 11 at a position A1131. Part B is formed, and the thickness of part A is less than that of part B. A movable part 12 is arranged inside the body 11. The movable part 12 is cylindrical. Guide strips 121 are symmetrically arranged on both sides of the movable part 12. The guide strips 121 are arranged in guide grooves 1121. A spring sheet 122 is arranged on the side of the movable part 12. One end of the spring sheet 122 is pivotally connected to the movable part 12, and the other end is provided with a hook body 1221. The hook body 1221 moves in the limiting through hole A1131 and the limiting through hole B1132. A push rod 13 is arranged in the main body 11, one end of the push rod 13 is arranged inside the main body 11 and abuts against the lower end of the movable part 12, the other end of the push rod 13 passes through the through hole 1111 and the outlet hole is arranged on the outside of the main body 11, a protrusion 131 is arranged on the outer circumference of the push rod 13, a spring 14 is arranged between the protrusion 131 and the partition 111, the spring 14 is arranged on the push rod 13, a seat 8 is arranged at the upper end of the movable part 12, and a supporting component 5 is arranged on the push rod 13 arranged on the outside of the main body 11.

[0040] The working principle of the telescopic mechanism in the present application is as follows: when the seat is subjected to a downward force, the movable part moves downward to the bottom of the main body because the seat is fixedly connected to the movable part. Since a spring sheet is provided on the movable part and a slope A is provided on the hook body on the spring sheet, when the movable part moves downward, the slope A is squeezed by the part A, and the spring sheet is gradually squeezed and deformed. The spring sheet is preferably parallel to the axis of the main body. When the movable part continues to move downward, when it moves to the position-limiting through hole A, the spring sheet is no longer squeezed, so the hook body is inserted into the position-limiting through hole A. In order to ensure that the movable part moves linearly in the main body, a guide groove and a guide strip are used in combination. When the movable part moves downward, the movable part presses the push rod to move downward. At this time, the spring on the push rod is compressed. Since the push rod is fixedly connected to the support component, the push rod moves downward, and the support component moves toward the ground. When the seat is not subjected to downward force, the fixed rod in the trigger mechanism extends and touches the hook on the spring sheet, preferably touching the upper end surface of the hook flush with the lower end surface of part A. Due to the action of the spring on the push rod, the push rod drives the movable part to move upward until the hook is confined in the limit through hole B.

[0041] A seat 8 is arranged on the top of the telescopic mechanism 1, and footrest components 3 are symmetrically arranged on both sides of the telescopic mechanism 1. A guardrail 7 is arranged on the footrest component 3. The guardrail 7 is in a circular shape and is arranged on the upper end of the seat 8. The footrest component 3 includes a pedal 31, one end of which is fixedly connected to the outer side of the body 11, and the other end of the pedal 31 is provided with a handrail 32, one end of the handrail 32 is fixedly connected to the pedal 31, and the other end is provided with the guardrail 7, and the axis of the handrail 32 is parallel to the axis of the body 11.

[0042] The working principle of the pedal component in this application is: when the operator sits on the seat, the support component contacts the ground and supports the operator. There are two components that play a supporting role here, one is the support component, and the other is the walking mechanism. The operator sits on the seat with the upper body set in the guardrail. When the position to be constructed is relatively low, the operator can sit and install the ventilation duct. When the position to be constructed is relatively high, the operator stands up with his hands on the handrail and his feet on the pedal. At this time, the seat is no longer subject to the downward force. Under the action of the spring on the top rod, the hook is limited in the limit through hole B. At this time, the support component is far away from the ground and no longer plays a supporting role. The operator performs construction on the ventilation duct at a high place.

[0043] See also Figure 8: A trigger mechanism 4 is arranged on the side of the telescopic mechanism 1 in the middle of the pedal component 3, the trigger mechanism 4 is arranged on the upper part of the pedal component 3, the trigger mechanism 4 is arranged on the outside of the body 11, the trigger mechanism 4 includes a base plate 41, a baffle 411 is arranged on the base plate 41, a through hole 4111 is arranged on the baffle 411, guide protrusions 412 are symmetrically arranged on both sides of the base plate 41, guide holes 4121 are arranged on the guide protrusions 412, a slider 42 is arranged between the guide protrusions 412, the slider 42 includes a middle part and two end parts, a fixing rod 421 is arranged in the middle part, and the fixing rod 421 passes through the through hole 4111 and is arranged outside the baffle 411 side, and is arranged opposite to the limiting through hole A1131, a spring A43 is arranged on the fixing rod 421, one end of the spring A43 is fixedly connected to the baffle 411, and the other end is fixedly connected to the middle part, guide blocks 422 are arranged at both ends of the slider 42, the guide blocks 421 are arranged in the guide hole 4121, an axial hole is arranged on the base plate 41, a transmission shaft 44 is arranged in the axial hole, the transmission shaft 44 passes through the base plate 41, one end is arranged at the upper end of the base plate 41, and the other end is arranged at the lower end of the base plate 41, a cam 45 is arranged on the transmission shaft 44 arranged at the upper end of the base plate 41, and a motor 46 is arranged on the transmission shaft 44 arranged at the lower end of the base plate 41.

[0044] The working principle of the trigger mechanism in the present application is: start the motor, the motor output shaft rotates and drives the cam to rotate through the transmission shaft. When the protrusion of the cam touches the slider, the slider moves forward with the cooperation of the guide block and the guide hole, driving the fixed rod to move forward. At this time, spring A is compressed, and the fixed rod touches the hook body, making the upper end surface of the hook body flush with the lower end surface of part A. Under the action of the spring on the top rod, the seat moves upward. When the cam rotates one circle, spring A is released, and the contour line of the cam without the protrusion contacts the slider, and the slider moves in the direction close to the cam, thereby realizing the extension and contraction process of the fixed rod.

[0045] See also Fig. 9 A supporting component 5 is provided at the bottom of the telescopic mechanism 1, and the supporting component 5 includes a supporting upper end portion 51 and a supporting lower end portion 52. The supporting upper end portion 51 is fixedly connected to one end of a top rod 13 arranged on the outside of the main body 11, and the supporting lower end portion 52 is evenly provided with supporting legs 521. The supporting legs 521 include a supporting portion 5211 and a bending portion 5212. The supporting portion 5211 is fixedly connected to the bending portion 5212 at 90 degrees.

[0046] The working principle of the support component in the present application is as follows: when the support component moves toward the ground, the bent portion first contacts the ground, and the support of the entire device and the weight of the operator is achieved through the support of the legs.

[0047] join Fig.10: The supporting part 5 is symmetrically provided with a walking mechanism 6 on both sides. The walking mechanism 6 is arranged at the lower part of the pedal part 3 and is arranged corresponding to the pedal part 3. A positioning plate 114 is symmetrically provided on the outer side of the main body 11 at the lower part of the pedal plate 31, and the walking mechanism 6 is arranged on the positioning plate 114. The walking mechanism 6 includes a fixed gear ring 61, and the fixed gear ring 61 is fixedly connected to the positioning plate 114. A gear 62 is arranged inside the fixed gear ring 61. The teeth of the gear 62 are meshed with the teeth of the fixed gear ring 61. An eccentric shaft is arranged at the rear side of the gear 62. A base frame 63 is arranged at the rear side of the fixed gear ring 61. The base frame 63 includes a base frame upper end 631 and a base frame lower end 632. The base frame upper end 631 is fixedly connected to the fixed gear ring 61. An eccentric shaft hole is arranged at the base frame upper end 631. The eccentric shaft of the gear 62 is arranged in the eccentric shaft hole and extends to the outer side of the base frame upper end 631. The extension portion is extended to form an extension portion, and the extension portion is provided with a motor B64. A cross bar 6321 is provided on the lower end portion 632 of the base frame, a slide groove 63211 is provided in the cross bar 6321, a slider A65 is provided in the slide groove 63211, a slot 651 is provided on the slider A65, a connecting rod A66 is provided in the slot 651, a support plate 661 is provided at the lower end of the connecting rod A66, a connecting rod B67 is provided at the upper end of the connecting rod A66, one end of the connecting rod B67 is pivotally connected to the upper end of the connecting rod A66, and the other end of the connecting rod B67 is concentrically arranged with the gear hole of the gear 62, and a pin is provided at the concentric position.

[0048] The working principle of the walking mechanism in the present application is: start motor B, the output shaft of motor B rotates, and through the eccentric shaft, the gear revolves and rotates along the inner ring gear. Taking the gear at the top of the inner ring gear and rotating counterclockwise along the inner ring gear as an example, the working principle of the walking mechanism is explained. The gear rotates counterclockwise along the inner ring gear from the highest point of the inner ring gear. The connecting rod B gradually becomes horizontal with the rotation of the gear. At this time, the support plate is lifted. Therefore, the connecting rod A moves to the front of the cross bar under the restriction of slider A. When the gear gradually moves from the bottom of the inner ring gear to the top of the inner ring gear, the connecting rod B gradually becomes vertical. At this time, the support plate is lowered. Therefore, the connecting rod A moves to the rear of the cross bar under the restriction of slider A, thus completing the entire movement process.

[0049] In the initial state, the walking mechanism 6 does not move and supports the telescopic mechanism 1. When the seat 8 is subjected to a downward force, the telescopic mechanism 1 drives the supporting component 5 to move toward the ground until it touches the ground. When the force on the seat 8 disappears, the trigger mechanism 4 drives the seat 8 to move toward the top of the telescopic mechanism 1, thereby driving the supporting component 5 away from the ground. When the telescopic mechanism 1 needs to be moved, the force on the seat 8 is canceled, and the walking mechanism 6 is started, and the walking mechanism 6 realizes the movement of the telescopic mechanism 1.

[0050] Technical features not described in the present application can be achieved through or by adopting existing technologies and will not be elaborated here. Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present application should also fall within the scope of protection of the present application.

Claims

1. A ventilation duct installation auxiliary device for a BIM-based building, characterized in that: The invention comprises a telescopic mechanism (1), wherein a seat (8) is arranged on the top of the telescopic mechanism (1), pedal components (3) are symmetrically arranged on both sides of the telescopic mechanism (1), a trigger mechanism (4) is arranged on the side of the telescopic mechanism (1) in the middle of the pedal component (3), and the trigger mechanism (4) is arranged on the upper part of the pedal component (3), and a support component (5) is arranged at the bottom of the telescopic mechanism (1), and walking mechanisms (6) are symmetrically arranged on both sides of the support component (5), and the walking mechanisms (6) are arranged at the lower part of the pedal component (3) and are arranged corresponding to the pedal component (3). In the initial state, , the walking mechanism (6) does not move and plays a supporting role for the telescopic mechanism (1); when the seat (8) is subjected to a downward force, the telescopic mechanism (1) drives the supporting component (5) to move toward the ground until it contacts the ground; when the force on the seat (8) disappears, the trigger mechanism (4) drives the seat (8) to move toward the top of the telescopic mechanism (1), thereby driving the supporting component (5) away from the ground; when the telescopic mechanism (1) needs to be moved, the force on the seat (8) is canceled, the walking mechanism (6) is started, and the walking mechanism (6) realizes the movement of the telescopic mechanism (1); The telescopic mechanism (1) comprises a body (11), the body (11) comprises an upper part and a lower part, the upper part of the body (11) is a hollow cylinder, the lower part of the body (11) is a hollow cone, an exit hole is arranged on the cone, a partition (111) is arranged at the junction of the cylinder and the cone, a through hole (1111) is arranged on the partition (111), the through hole (1111) corresponds to the exit hole, a guide rail (112) is symmetrically arranged on the inner side of the cylinder, a guide groove (1121) is arranged on the guide rail (112), a limited position through hole (113) is arranged on the side of the body (11), and the The limiting through hole (113) comprises a limiting through hole A (1131) and a limiting through hole B (1132), wherein the limiting through hole A (1131) is arranged at the lower part of the limiting through hole B (1132), wherein the upper part of the limiting through hole B (1132) connected to the body (11) is an inclined surface, wherein a portion A is formed between the lower part of the limiting through hole B (1132) and the upper part of the limiting through hole A (1131), and a portion B is formed where the lower part of the limiting through hole A (1131) is connected to the body (11), wherein the thickness of the portion A is less than the thickness of the portion B, and wherein a movable part (12) is arranged inside the body (11), wherein the movable part (12) is cylindrical, guide strips (121) are symmetrically arranged on both sides of the movable part (12), and the guide strips (121) are arranged in the guide groove (1121). A spring sheet (122) is arranged on the side of the movable part (12), one end of the spring sheet (122) is pivotally connected to the movable part (12), and the other end is provided with a hook body (1221), and the hook body (1221) moves in the limiting through hole A (1131) and the limiting through hole B (1132), and the end surface of the hook body (1221) away from the spring sheet (122) is an inclined surface A, and a push rod (13) is arranged in the body (11) , one end of the push rod (13) is arranged inside the body (11) and abuts against the lower end of the movable member (12), the other end of the push rod (13) passes through the through hole (1111) and the outlet hole is arranged outside the body (11), a protrusion (131) is arranged on the outer circumference of the push rod (13), a spring (14) is arranged between the protrusion (131) and the partition (111), and the spring (14) is arranged on the push rod (13), the seat (8) is arranged at the upper end of the movable member (12), and the support component (5) is arranged on the push rod (13) arranged outside the body (11); The trigger mechanism (4) is arranged on the outside of the body (11), and the trigger mechanism (4) comprises a base plate (41), a baffle (411) is arranged on the base plate (41), a through hole (4111) is arranged on the baffle (411), guide protrusions (412) are symmetrically arranged on both sides of the base plate (41), a guide hole (4121) is arranged on the guide protrusion (412), a slider (42) is arranged between the guide protrusions (412), the slider (42) comprises a middle part and two end parts, a fixing rod (421) is arranged on the middle part, the fixing rod (421) passes through the through hole (4111) and is arranged on the outside of the baffle (411), and is arranged opposite to the limiting through hole A (1131), the fixing rod (421) 1) is provided with a spring A (43), one end of the spring A (43) is fixedly connected to the baffle (411), and the other end is fixedly connected to the middle part, guide blocks (422) are provided at both ends of the slider (42), and the guide blocks (422) are arranged in the guide hole (4121), an axial hole is provided on the base plate (41), a transmission shaft (44) is provided in the axial hole, the transmission shaft (44) passes through the base plate (41), one end is provided at the upper end of the base plate (41), and the other end is provided at the lower end of the base plate (41), a cam (45) is provided on the transmission shaft (44) provided at the upper end of the base plate (41), and a motor (46) is provided on the transmission shaft (44) provided at the lower end of the base plate (41); The pedal component (3) is provided with a guardrail (7), the pedal component (3) comprises a pedal plate (31), one end of the pedal plate (31) is fixedly connected to the outer side surface of the body (11), the other end of the pedal plate (31) is provided with a support rod (32), one end of the support rod (32) is fixedly connected to the pedal plate (31), and the other end is provided with the guardrail (7), and the axis of the support rod (32) is parallel to the axis of the body (11); A positioning plate (114) is symmetrically arranged on the outer side of the body (11) below the pedal (31), and the walking mechanism (6) is arranged on the positioning plate (114); The walking mechanism (6) comprises a fixed gear ring (61), the fixed gear ring (61) is fixedly connected to the positioning plate (114), a gear (62) is arranged inside the fixed gear ring (61), the teeth of the gear (62) are meshed with the teeth of the fixed gear ring (61), an eccentric shaft is arranged at the rear side of the gear (62), a base frame (63) is arranged at the rear side of the fixed gear ring (61), the base frame (63) comprises a base frame upper end (631) and a base frame lower end (632), the base frame upper end (631) is fixedly connected to the fixed gear ring (61), an eccentric shaft hole is arranged at the base frame upper end (631), the eccentric shaft of the gear (62) is arranged in the eccentric shaft hole and extends toward the base frame upper end (631). ) extends outward to form an extension portion, the extension portion is provided with a motor B (64), a cross bar (6321) is provided on the lower end portion (632) of the base frame, a slide groove (63211) is provided in the cross bar (6321), a slider A (65) is provided in the slide groove (63211), a card slot (651) is provided on the slider A (65), a connecting rod A (66) is provided in the card slot (651), a supporting plate (661) is provided at the lower end of the connecting rod A (66), a connecting rod B (67) is provided at the upper end of the connecting rod A (66), one end of the connecting rod B (67) is pivotally connected to the upper end of the connecting rod A (66), and the other end of the connecting rod B (67) is concentrically arranged with the gear hole of the gear (62), and a pin is provided at the concentric position.

2. The BIM-based building ventilation duct installation auxiliary device according to claim 1 is characterized in that: The guardrail (7) is in the shape of a circular ring and is arranged on the upper end of the seat (8).

3. The BIM-based building ventilation duct installation auxiliary device according to claim 1 is characterized in that: The support component (5) comprises a support upper end portion (51) and a support lower end portion (52); the support upper end portion (51) is fixedly connected to one end of the push rod (13) arranged on the outside of the body (11); the support lower end portion (52) is evenly provided with support legs (521); the support legs (521) comprise a support portion (5211) and a bending portion (5212); the support portion (5211) is fixedly connected to the bending portion (5212) at a 90-degree angle.

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