Hoisting large sample structure of ventilation and smoke prevention and exhaust core unit
By using multiple adjustable-length booms and support plates, the problem of center of gravity tilt during the hoisting of the core unit was solved, resulting in a more stable hoisting effect, extending the service life of the structure and reducing safety risks.
Patent Information
- Application Number
- CN202520739813.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-18
AI Technical Summary
When hoisting heavy core units, it is easy to cause the center of gravity to be off-center, resulting in uneven hoisting structure, which affects service life and safety.
The system employs a structure with multiple adjustable-length booms and support plates. The core unit is vertically suspended via lifting rings, and locking and limiting components are used to keep the booms parallel. Sliding blocks and adjusting components adjust the boom angle to ensure the core unit is installed horizontally.
It effectively reduces the risk of deformation and damage to the hoisting structure, increases its service life, and reduces safety hazards.
Smart Images
Figure CN223936075U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hoisting technology for smoke control and exhaust units, and in particular to a large-scale hoisting structure for a core ventilation and smoke control unit. Background Technology
[0002] Ventilation and smoke control systems are used to exhaust smoke and supply air to buildings. The core units of these systems mainly include axial flow fans and centrifugal fans, which need to be hoisted during installation. However, due to the relatively large weight of the core units, if they are tilted after hoisting, the center of gravity will be off-center, resulting in uneven stress on the hoisted components. This can easily cause deformation and damage to the fixed structure located on the lower side of the tilt during long-term hoisting, affecting the service life, creating safety hazards, and thus affecting the strength of the hoisted component structure. Therefore, this application proposes a new technical solution. Utility Model Content
[0003] In order to increase the service life of the core unit hoisting structure and reduce safety hazards, this application provides a detailed hoisting structure for the ventilation and smoke extraction core unit.
[0004] This application provides a detailed hoisting structure for a core ventilation and smoke extraction unit, employing the following technical solution:
[0005] A detailed structure for hoisting a core ventilation and smoke extraction unit includes a suspension mechanism comprising multiple suspension rods and a support plate for mounting the core unit. The suspension rods are arranged in pairs, with two rods in each pair distributed horizontally. Multiple pairs of suspension rods are arranged along the central longitudinal section of the same pair. Each suspension rod has a variable length and is equipped with an adjustment component for adjusting its length. A lifting ring is movably connected to the upper end of each suspension rod, and the rod is vertically suspended from the floor slab via the lifting ring. A locking component is provided on the suspension rod to limit swaying between the lifting ring and the rod. The support plate includes a transverse section and a side section with one end fixed to the transverse section, the side section tilting towards the center of the same pair of suspension rods. Each suspension rod in the same pair corresponds to one support plate. The lower end of each suspension rod is slidably connected to the support plate, and a cylindrical slider is rotatably connected to its end. The core unit is mounted on the support plate. The support plate has a groove for the slider to slide in, and limit components are provided before and after the slider's sliding path.
[0006] Optionally, the suspension rod includes an adjusting rod one, an adjusting rod two, and a fixed rod. The fixed rod is fixed to the floor slab and movably connected to the suspension ring. The end of the adjusting rod one is connected to the suspension ring and suspended vertically downward. One end of the adjusting rod two is rotatably connected to the slider. The adjusting assembly includes a connector whose two ends are respectively penetrated by the adjusting rod one and the adjusting rod two, and a nut sleeved on the adjusting rod one and the adjusting rod two. The other ends of the adjusting rod one and the adjusting rod two are respectively provided with a threaded structure and are fixed and adjusted to lock positions by the nut and the connector.
[0007] Optionally, the locking assembly is disposed on the adjusting rod and the fixed rod. The locking assembly includes an inverted frustum-shaped abutment cover, a stop plate fixed to the fixed rod, and a rotating plate rotatably connected to the fixed rod. The abutment cover is hollow inside and sleeved on the adjusting rod. The abutment cover abuts against the rotating plate. A ball is provided at one end of the fixed rod. A rotating hole is opened in the center of the rotating plate. The diameter of the rotating hole is smaller than the diameter of the ball and larger than the diameter of the fixed rod. The rotating hole is sleeved on the ball and rotates. An adjusting distance assembly for adjusting and fixing the rotation angle is provided between the rotating plate and the stop plate.
[0008] Optionally, the adjusting assembly includes at least three screws, which are evenly distributed along the circumference. One end of each screw is rotatably connected to a rotating plate via a thread, and the other end abuts against a stop plate. The end of the screw that abuts against the stop plate is arc-shaped. The rotating plate is provided with a driving assembly for driving the screws to rotate.
[0009] Optionally, the drive assembly includes a turbine, a worm gear, and a rotating head connected to the worm gear, all disposed on the rotating plate. The turbine gear is sleeved on the screw and vertically slidably connected. The worm gear meshes with the turbine gear, and the end of the worm gear extends outward toward the rotating plate and is connected to the rotating head.
[0010] Optionally, the limiting component includes multiple limiting blocks that abut against both sides of the slider. Every two limiting blocks form a group, and the two limiting blocks in the same group abut against both sides of the same slider. The limiting blocks are fixed to the support rod by screws, and the limiting blocks are telescopic structures.
[0011] Optionally, the upper surface of the support plate is provided with a plurality of magnetic sheets and a horizontal bubble fixed to the magnetic sheets. The plurality of magnetic sheets are distributed along the length direction of the support plate, and the horizontal bubble is provided with a magnet for adsorbing the magnetic sheets.
[0012] Optionally, the support plate abutting against a section of the core unit is provided with an incline, the bent section of the support plate faces away from the core unit, a protrusion extends outward from the lower direction of the bent section of the support plate, and the slide groove is located between the bent section of the support plate and the protrusion.
[0013] In summary, this application includes the following beneficial technical effects: It is equipped with lifting rings for fixation, allowing the suspension rods to be suspended vertically downwards by gravity, thus ensuring that every two suspension rods are parallel as much as possible; if the lengths of the suspension rods are unequal, the lengths can be adjusted using an adjusting assembly, so that the connection ends of multiple suspension rods can be on the same horizontal plane during installation.
[0014] Furthermore, since the support plate is lifted by a slider, the slider can move relative to the support plate, so the adjustment of the aforementioned lifting rod will not be hindered. Therefore, this application can be used to install the core unit on a relatively horizontal support plate, making the application relatively balanced, reducing the probability of structural deformation and damage, increasing the service life of the core unit hoisting structure, and reducing safety hazards. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this application;
[0016] Figure 2 This is a schematic diagram of the boom of this application;
[0017] Figure 3 It is in this application Figure 2 Enlarged view of part A in the middle.
[0018] Explanation of reference numerals in the attached drawings: 1. Suspension mechanism; 11. Hanging rod; 111. Adjusting rod one; 112. Adjusting rod two; 113. Fixed rod; 12. Support plate; 121. Protrusion; 122. Bending section; 13. Hanging ring; 14. Sliding block; 2. Adjusting assembly; 21. Connecting piece; 22. Nut; 3. Locking assembly; 31. Abutment cover; 32. Rotating plate; 33. Stop plate; 34. Ball; 4. Adjusting distance assembly; 41. Screw; 5. Drive assembly; 51. Turbine; 52. Worm gear; 53. Rotating head; 6. Limiting assembly; 61. Limiting block. Detailed Implementation
[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0020] This application discloses a large-scale hoisting structure for a core ventilation and smoke extraction unit.
[0021] Reference Figure 1 and Figure 2 The detailed structure for the hoisting of the core ventilation and smoke extraction unit includes a suspension mechanism 1. The suspension mechanism 1 includes multiple suspension rods 11 and a support plate 12 for fixing the suspension rods 11 and the core unit. The multiple suspension rods 11 are symmetrically distributed along the central axis of the core unit and form a group of two. The multiple groups of suspension rods 11 are arranged along the length of the core unit, so that the core unit can be suspended more stably. The arrangement of multiple groups of suspension rods 11 can help distribute the weight. One end of the suspension rod 11 is fixed to the floor slab and the suspension rod 11 is equipped with a lifting ring 13. It is movably connected to and suspended from the floor slab through the lifting ring 13. With the help of the lifting ring 13, the suspension rod 11 can naturally descend vertically under the action of gravity, thereby reducing the possible tilting after installation.
[0022] The boom 11 is provided with a locking component 3 to limit the swaying between the lifting ring 13 and the boom 11. This helps the lifting ring 13 to remain vertically downward and reduces the swaying of the boom 11 due to the movable connection through the lifting ring 13, making the device more stable.
[0023] The suspension rod 11 has a variable length structure. Each suspension rod 11 is equipped with an adjustment component 2 for adjusting the length of the suspension rod 11. If the lower end of the suspension rod 11 is not at the same height because it is automatically adjusted to droop relative to the lifting ring 13, the lower end can be kept horizontal by adjusting the length of each suspension rod 11. To facilitate observation of whether it is tilted, instruments such as a spirit level can be used for auxiliary installation.
[0024] The support plate 12 has a bent structure. The end of the support plate 12 includes a horizontal end and a side section with one end fixed to the horizontal section. The side section is inclined towards the center of the same group of lifting rods 11. Each lifting rod in the same group (i.e., the same side) corresponds to the same support plate 12. It can be arranged in an inverted L-shape. One side wall of the support plate 12 abuts against the side wall of the core unit. In order to better abut against the core unit and hoist the core unit, the support plate 12 can be inclined against the side wall of the core unit to better support the core unit. If the shell of the core unit is approximately cylindrical, the support plate 12 can also be made into an arc shape to fit the core unit, reducing the risk of the core unit slipping. The bottom ends of every two support plates 12 can also be fixed with brackets to support the bottom of the core unit, which is conducive to more stable hoisting of the core unit. The bottom end of the boom 11 is provided with a cylindrical slider 14, and the support plate 12 is provided with a groove for the slider 14 to slide. The support plate 12 can be abutted against one end of the core unit and extend laterally outward to form a protrusion 121. The groove is formed between the protrusion 121 and the bent section 122 of the support plate 12. The slider 14 can roll in the groove to form displacement, thereby facilitating the adjustment of the angle of the boom 11 and keeping the two booms 11 parallel. The two ends of the slider 14 are provided with limiting components 6 to prevent the slider 14 from rolling continuously. When the limiting components 6 abut against the slider 14, the adjusted boom 11 can be locked to prevent the boom 11 from continuously changing angle and affecting the lifting effect.
[0025] In another embodiment of this application, the support plate 12 is provided with a plurality of magnetic sheets, which are distributed along the length of the support plate 12. Horizontal bubbles are adsorbed on the magnetic sheets. There can be one or more horizontal bubbles. If there is only one horizontal bubble, it can be removed after the hoisting structure of one area is installed and adsorbed onto the next magnetic sheet to assist in observation and installation work.
[0026] With the above settings, under the action of the lifting ring 13 and its own weight, the lifting rod 11 can be suspended vertically downwards, thus ensuring that every two lifting rods 11 are parallel. If the lengths of the lifting rods 11 are not equal, the lengths of the lifting rods 11 can be adjusted by adjusting the component 2, so that the connection ends of multiple lifting rods 11 can be on the same horizontal plane when the core unit is installed. If the angle of the lifting rod 11 is slightly off after installation, the angle of the lifting rod 11 can be adjusted by the slider 14, so that the installation of the lifting rod 11 is kept horizontal, further ensuring that the hoisting of the core unit and other core units is kept horizontal, reducing the risk of deformation and damage.
[0027] The suspension rod 11 includes an adjusting rod 111, an adjusting rod 112, and a fixing rod 113. The adjusting rod 111 and the adjusting rod 112 are connected by an adjusting assembly 2. One end of the fixing rod 113 is fixed to the floor slab (either via a pre-embedded structure or an expansion bolt), and the other end is fixed with a lifting ring 13. The top end of the adjusting rod 111 may have a hole or a welded ring, ensuring that the suspension rod 11 is vertically downward after installation. Furthermore, each suspension rod 11 is vertically downward and parallel to each other, reducing the possibility of tilting. One end of the adjusting rod 112 is fixed to a slider 14, allowing for fine-tuning of the angle of the adjusting rod 112, or even the adjusting rod 111, or the fixed position of the end of the adjusting rod 112, according to specific needs. The adjusting assembly 2 includes a connector 21 with adjusting rod 111 and adjusting rod 212 penetrating its two ends respectively, and a nut 22 sleeved on adjusting rod 111 and adjusting rod 212. The other ends of adjusting rod 111 and adjusting rod 212 are respectively provided with threaded structures. The nut 22 is fixed to adjusting rod 111, adjusting rod 212 and connector 21 by threaded connection with the threaded structure. The length of adjusting rod 111 and adjusting rod 21 can be adjusted by rotating the locking position of the nut 22, so that the two are as parallel and equal in length as possible, thereby reducing tilting.
[0028] Reference Figure 1 and Figure 2 The locking assembly 3 is equipped with an adjusting rod 111 and a fixing rod 113. The locking assembly 3 includes an inverted frustum-shaped abutment cover 31, a stop plate 33 fixed to the fixing rod 113, and a rotating plate 32 rotatably connected to the fixing rod 113. The abutment cover 31 is hollow inside and is fitted onto the adjusting rod 111. A section of the fixing rod 113 has a threaded structure, and the smaller opening end of the abutment cover 31 has a corresponding threaded structure. The two are connected by threads, and rotation causes the abutment cover 31 to abut against the rotating plate 32. A rotating hole is opened in the center of the rotating plate 32, through which a ball 34 is provided at the end of the fixing rod 113 that penetrates the rotating plate 32. The diameter of the rotating hole is smaller than the diameter of the ball 34 but larger than the diameter of the fixing rod 113, so that the rotating plate 32 can adjust its posture relative to the ball 34.
[0029] The reason why the orientation of the rotating plate 32 needs to be adjustable is that the floor slab may not be flat, which means the stop plate 33 may not be level. After the hanger 11 is vertical, abutment cover 31 is needed to prevent it from swaying, and the abutment cover 31 needs to support the upper part for leverage. If it directly abuts against the stop plate 33, problems will arise because the stop plate 33 is not level. Therefore, a level surface is needed, and the rotating plate 32 is used to provide this level surface. (Refer to...) Figure 1 and Figure 3 A distance adjustment component 4 is also provided between the rotating plate 32 and the stop plate 33 to adjust the rotation angle and fix the rotating plate 32 and the stop plate 33, thereby limiting the continuous rotation of the rotating plate 32. The distance adjustment component 4 includes at least three screws 41, which are evenly distributed along the circumference, i.e., one screw 41 is set at 120°. This arrangement ensures that when the screw 41 abuts against the stop plate 33, there are three contact points for a more stable connection. One end of the screw 41 is threaded to the rotating plate 32, and the length of the exposed screw 41 is controlled by rotation. The other end abuts against the stop plate 33, thereby adjusting the linear distance between the vertical positions of the rotating plate 32 and the stop plate 33 within each range, i.e., adjusting the rotation angle of the rotating plate 32. The end of the screw 41 that abuts against the stop plate 33 is arc-shaped, ensuring that it abuts against the stop plate 33 at any angle.
[0030] Reference Figure 3 The drive assembly 5 includes a turbine 51, a worm gear 52 and a rotating head 53 connected to the worm gear 52, which are disposed on the rotating plate 32. The turbine 51 is sleeved on the end of the screw 41 that extends into the rotating plate 32. The lower end of the screw 41 can be a square column structure, so that it can slide relative to the turbine 51, but cannot rotate relative to it.
[0031] When the turbine 51 rotates, it drives the screw 41 to rotate. Since the rotating plate 32 is protruded by the three screws 41 at the same time, the rotating plate 32 cannot rotate. This causes the screws 41 to rise and fall, so the operator can change the extension length of the three screws 41.
[0032] Since the rotating plate 32 is fixed relative to the stop plate 33 by three screws 41, changing the length of the three screws 41 can change the angle, or posture, of the rotating plate 32.
[0033] The worm 52 is located to the side of the turbine 51, and the teeth of the two mesh with each other. One end of the worm 52 extends radially out of the rotating plate 32 and is fixed to the connection end of the rotating head 53, which can be fixed by bolts and nuts 22. In order to facilitate the installation of the turbine 51 and the worm 52, the rotating plate 32 can be provided with a slot for the installation of the internal structure. The above structures are all set according to the number of screws 41, that is, there are at least three sets, and each is adjusted by its own rotating head 53. The rotating head 53 can be a rounded hexagon with inward recessed sidewalls to facilitate manual rotation.
[0034] Reference Figure 1 The limiting component 6 includes multiple limiting blocks 61 that abut against both sides of the slider 14. Each pair of limiting blocks 61 forms a group, and the two limiting blocks 61 in the same group abut against both sides of the same slider 14. The limiting blocks 61 are telescopic structures. In order to facilitate their abutment after telescopic extension, the limiting blocks 61 should be provided with a locking or fixing structure (such as fixing them with bolts and nuts 22 after telescopic extension to a designated position) or the telescopic end can be pushed out by an electric cylinder, and then stopped to fix them after abutment.
[0035] To facilitate the fixing of the limiting block 61 and the support rod, the section of the support rod that is not close to the core unit can be provided with several through holes. The limiting block 61 is fixed by screws passing through the preset through holes. If there is still a gap between it and the slider 14, the telescopic structure can be adjusted to abut against it, thereby achieving fixing and locking.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A detailed hoisting structure for a core ventilation and smoke extraction unit, characterized in that: The system includes a suspension mechanism (1), which comprises multiple suspension rods (11) and a support plate (12) for installing the core unit. The suspension rods (11) are arranged in pairs, with two rods in the same group distributed left and right. Multiple groups of suspension rods (11) are arranged along the central longitudinal section of the same group of rods. The suspension rods (11) are variable length structures and are equipped with adjustment components (2) for adjusting the length of the suspension rods (11). The upper end of each suspension rod (11) is movably connected to a lifting ring (13) and is vertically suspended from the floor slab through the lifting ring (13). The upper end of each suspension rod (11) is provided with a device for limiting the lifting ring (13). The locking assembly (3) that sways between the boom (11) and the support plate (12) includes a transverse section and a side section that fixes one end of the transverse section and the side section is inclined toward the center of the same group of booms (11). Each boom (11) in the same group corresponds to a support plate (12). The lower end of the boom (11) is slidably connected to the support plate (12) and the end is rotatably connected to a cylindrical slider (14). The core unit is installed on the support plate (12). The support plate (12) is provided with a sliding groove for the slider (14) to slide. Limiting components (6) are provided in front of and behind the sliding path of the slider (14).
2. The detailed structure for hoisting the core ventilation and smoke extraction unit according to claim 1, characterized in that: The suspension rod (11) includes an adjusting rod one (111), an adjusting rod two (112), and a fixing rod (113). The fixing rod (113) is fixed to the floor slab and movably connected to the lifting ring (13). The end of the adjusting rod one (111) is connected to the lifting ring (13) and suspended vertically downward. One end of the adjusting rod two (112) is rotatably connected to the slider (14). The adjusting assembly (2) includes a connector (21) whose two ends are respectively penetrated by the adjusting rod one (111) and the adjusting rod two (112), and a nut (22) sleeved on the adjusting rod one (111) and the adjusting rod two (112). The other ends of the adjusting rod one (111) and the adjusting rod two (112) are respectively provided with threaded structures and are fixed and adjusted by the nut (22) and the connector (21).
3. The detailed structure for hoisting the core ventilation and smoke extraction unit according to claim 2, characterized in that: The locking assembly (3) is disposed on the adjusting rod (111) and the fixed rod (113). The locking assembly (3) includes an inverted frustum-shaped abutment cover (31), a stop plate (33) fixed to the fixed rod (113), and a rotating plate (32) rotatably connected to the fixed rod (113). The abutment cover (31) is hollow inside and sleeved on the adjusting rod (111). The abutment cover (31) abuts against the rotating plate (32). A ball (34) is provided at one end of the fixed rod (113). A rotating hole is opened in the center of the rotating plate (32). The diameter of the rotating hole is smaller than the diameter of the ball (34) and larger than the diameter of the fixed rod (113). The rotating hole is sleeved on the ball (34) and rotates. An adjusting distance assembly (4) is provided between the rotating plate (32) and the stop plate (33) to adjust the rotation angle and fix it.
4. The detailed structure for hoisting the core ventilation and smoke extraction unit according to claim 3, characterized in that: The adjusting component (4) includes at least three screws (41), which are evenly distributed along the circumference. One end of each screw (41) is connected to the rotating plate (32) by a thread, and the other end abuts against the stop plate (33). The end of the screw (41) that abuts against the stop plate (33) is arc-shaped. The rotating plate (32) is provided with a driving component (5) for driving the screws (41) to rotate.
5. The detailed structure for hoisting the core ventilation and smoke extraction unit according to claim 4, characterized in that: The drive assembly (5) includes a turbine (51), a worm (52) disposed on the rotating plate (32), and a rotating head (53) connected to the worm (52). The turbine (51) is sleeved on the lower end of the screw (41). The turbine (51) and the screw (41) are vertically slidably connected. The worm (52) meshes with the turbine (51). The end of the worm (52) extends outward toward the rotating plate (32) and is connected to the rotating head (53).
6. The detailed structure for hoisting the core ventilation and smoke extraction unit according to claim 5, characterized in that: The limiting component (6) includes multiple limiting blocks (61) that abut against both sides of the slider (14). Every two limiting blocks (61) form a group and the two limiting blocks (61) in the same group abut against both sides of the same slider (14). The limiting blocks (61) are fixed to the support rod by screws and the limiting blocks (61) are telescopic structures.
7. The detailed structure for hoisting the core ventilation and smoke extraction unit according to claim 1, characterized in that: The upper surface of the support plate (12) is provided with a plurality of magnetic sheets and a horizontal bubble fixed to the magnetic sheets. The plurality of magnetic sheets are distributed along the length direction of the support plate (12), and a magnet for adsorbing the magnetic sheets is provided at the bottom of the horizontal bubble.
8. The detailed structure for hoisting the core ventilation and smoke extraction unit according to claim 1, characterized in that: The support plate (12) is inclined at one end of the core unit. The bent section (122) of the support plate (12) faces away from the core unit. A protrusion (121) extends outward from the lower part of the bent section (122) of the support plate (12). The groove is located between the bent section (122) of the support plate (12) and the protrusion (121).