A net rack component hoisting and positioning device

Abstract

The utility model provides a net frame component hoists in place device, and this device includes base, cantilever, support arm and hoisting mechanism, wherein the bottom of base rotatably is provided with universal wheel, and can detachably be provided with the clamping type fixed card, the bottom end of cantilever is fixedly connected to one end of base, and the top end is inclined to the front of the other end of base, and is equipped with fixed pulley, support arm is symmetrically set up in the both sides of cantilever, and its bottom end is connected to base, and the top end is close to fixed pulley setting, hoisting mechanism includes winch and steel wire rope, the utility model discloses a base, cantilever, support arm and hoisting mechanism can make the whole device to be fixed in the position of being close to the net frame component to be installed, realizes the hoisting in place operation of net frame component from bottom to top, and the overall structure is simple, convenient to use, improves the installation efficiency of net frame component, effectively reduces the construction cost, guarantees the construction safety simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of space frame construction technology, and in particular relates to a space frame component hoisting and positioning device. Background Technology

[0002] In projects requiring a combination of large spans, lightweight construction, and high strength, such as stadiums, exhibition centers, and airport terminals, a roof structure combining space frames and concrete is often used. The concrete structure supports or locally reinforces the space frame, which is typically positioned in the center of the concrete structure to achieve extensive coverage. However, this structural form usually requires pouring the concrete support structure first, followed by installing the space frame. The space frame is typically assembled from individual members on the ground, then hoisted into the air for final assembly. Current technology usually employs large cranes or truck cranes for lifting; however, using large cranes significantly increases costs, while truck cranes require ample space and proximity to the work site, making them unsuitable in situations where surrounding concrete structures are difficult to cross or where space is limited. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a hoisting and positioning device for space frame components, which reduces the requirements for space and the surrounding environment of the space frame, improves the installation efficiency of space frame components, and effectively reduces construction costs.

[0004] The technical solution adopted in this utility model is:

[0005] A hoisting and positioning device for space frame components, comprising:

[0006] The base has casters rotatably mounted on its bottom and clip-type fixing clips detachably mounted on its bottom.

[0007] A cantilever, the bottom end of which is fixedly connected to one end of the base, the top end of which is inclined forward toward the other end of the base and is provided with a fixed pulley;

[0008] The support arms are symmetrically arranged on both sides of the cantilever, with their bottom ends connected to the base and their top ends positioned near the fixed pulley.

[0009] The hoisting mechanism includes a winch and a wire rope. The winch is mounted on the base, and the wire rope is led out from the drum of the winch, passes through the fixed pulley, and has a hook at its end.

[0010] Furthermore, the cantilever is aligned with the centerline of the base.

[0011] Furthermore, the cantilever is provided with a plurality of limiting wheels along its length direction, and the distance between the groove of the limiting wheel and the cantilever is the same, so that the wire rope passes through the limiting wheel sequentially in a direction parallel to the cantilever.

[0012] Furthermore, both the fixed pulley and the limiting wheel are mounted on the side of the cantilever facing the base via a fixing frame, and the fixing frame is provided with a limiting hole to accommodate the steel wire rope passing through.

[0013] Furthermore, the base includes at least two vertical rods and several horizontal rods vertically connected to the vertical rods. Each horizontal rod includes two fixed rods respectively arranged near the two ends of the vertical rods. The casters and the clamp-type fixing clips are symmetrically arranged on the fixed rods.

[0014] Furthermore, the two ends of the fixing rod protrude from the longitudinal rod, the clamp-type fixing clip is disposed on the protruding part of the crossbar, and the universal wheel is disposed on the opposite inner side of the clamp-type fixing clip.

[0015] Furthermore, the length of the fixed rod and the distance between the two fixed rods are matched with the distance between the ball nodes of the space frame structure.

[0016] Furthermore, a number of support rods are provided between the cantilever and the base, and the support rods and the crossbar form a triangular support structure.

[0017] Furthermore, a plurality of support rods are provided between the cantilever and the support arm, and a plurality of connecting rods are provided between the support arms, the support rods and the connecting rods forming a triangular support structure.

[0018] The advantages and positive effects of this utility model are:

[0019] (1) By setting up a base, cantilever, support arm and hoisting mechanism, the whole device can be fixed at the location of the space frame component to be installed, so as to realize the hoisting and positioning of the space frame component from bottom to top. Then the whole device is moved to the next installation location, and the hoisting and positioning of all space frame components within the installation range of the space frame is gradually realized. The overall structure is simple and easy to use, which reduces the requirements for space and the surrounding environment of the space frame, improves the installation efficiency of the space frame component, effectively reduces the construction cost, and ensures construction safety.

[0020] (2) By setting limit wheels along the length of the cantilever, the position of the wire rope can be effectively restricted and guided, ensuring the stability of the wire rope position, which is conducive to the safe and accurate hoisting of the space frame components.

[0021] (3) By setting support rods between the cantilever and the base, and between the cantilever and the support arm, a stable triangular support structure is formed, which enhances the overall rigidity and anti-deformation ability of the device, effectively disperses the load borne by the cantilever, and improves the stability and reliability of the structure.

[0022] (4) By setting clamp-type fixing clips, the overall device can be stably fixed to the concrete structure or space frame structure connection requirements, ensuring effective load transfer and improving the stability and safety of hoisting operations. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present invention;

[0024] In the picture:

[0025] 1. Base; 11. Longitudinal rod; 12. Fixed rod; 13. Casters; 14. Clamp-type fixing clip; 2. Cantilever; 21. Fixed pulley; 22. Limiting wheel; 3. Lifting mechanism; 4. Support arm; 5. Support rod. Detailed Implementation

[0026] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0027] like Figure 1 As shown in the figure, this utility model embodiment proposes a hoisting and positioning device for space frame components, including a base 1, a cantilever 2, a support arm 4, and a hoisting mechanism 3. It is used in roof structures combining space frames and concrete. When the space frame structure is located in the middle of the concrete structure, the space frame components are hoisted and positioned, achieving efficient installation of the space frame structure, effectively saving construction time, ensuring construction safety, and reducing construction costs. The following is a detailed description of each part.

[0028] like Figure 1 As shown in the figure, this application provides a hoisting and positioning device for a space frame component, comprising:

[0029] The base 1 has a universal wheel 13 rotatably mounted on its bottom and a clip-type fixing clip 14 detachably mounted on its bottom.

[0030] The cantilever 2 has its bottom end fixedly connected to one end of the base 1, and its top end tilts forward toward the other end of the base 1 and is provided with a fixed pulley 21.

[0031] Support arm 4 is symmetrically arranged on both sides of cantilever 2, with its bottom end connected to base 1 and its top end set near fixed pulley 21;

[0032] The hoisting mechanism 3 includes a winch and a wire rope. The winch is mounted on the base 1. The wire rope is led out from the drum of the winch, passes through the fixed pulley 21, and has a hook at its end.

[0033] The aforementioned base 1 is used to connect with a concrete structure or a pre-installed space frame structure, providing a stable foundation for the installation of the overall device; the aforementioned cantilever 2 is inclined, with one end equipped with a fixed pulley 21 protruding beyond the range of the base 1, which on the one hand provides an installation foundation for the wire rope of the hoisting mechanism 3, allowing the hoisted object to be hoisted from bottom to top, avoiding the base 1; on the other hand, the cantilever 2 serves to bear the tensile load transmitted by the hook lifting the hoisted object; the support arm 4 is connected to the base 1 to form a triangular support structure, used to support the cantilever 2 to prevent the cantilever 2 from deforming or being damaged under tensile load; the hoisting mechanism 3 is used to hoist the hoisted object; in this embodiment, the hoisted object is a space frame. The proposed installation method for space frame components, whose intended installation locations are adjacent to completed concrete and space frame structures, allows for bottom-up hoisting of the space frame components by placing the proposed hoisting device near their intended installation location and suspending one end of the cantilever 2 equipped with a fixed pulley 21. This enables rapid hoisting and placement of the space frame components, facilitating their installation by workers. Subsequently, the entire device can be moved to the next intended installation location using the casters 13, ultimately achieving hoisting and placement of all space frame components within the installation range. The overall structure is simple and easy to use, improving the installation efficiency of space frame components, effectively reducing construction costs, and ensuring construction safety.

[0034] In the above embodiment, the cantilever 2 and the support arm 4 have a certain rigidity. The angle at which the cantilever 2 is inclined relative to the base 1 and the length protruding from the base 1 are specifically designed according to the weight and shape of the space frame component to avoid collision with the base 1 when the space frame component moves from bottom to top. The length and inclination angle of the support arm 4 are set after comprehensive consideration of the length and inclination angle of the cantilever 2 and the weight of the space frame component, which can provide sufficient support for the cantilever 2, thereby ensuring the stability and reliability of the entire structure. The cantilever 2 suspends the space frame component in the air through its strength and inclination angle, and provides necessary support through the support arm 4, reducing the load on the cantilever 2 and ensuring that the space frame component can move safely and smoothly according to the designed path without displacement or collision. Preferably, both the cantilever 2 and the support arm 4 are made of structural steel and welded together.

[0035] Furthermore, in this embodiment, the cantilever 2 is aligned with the centerline of the base 1. Since the support arm 4 is symmetrically arranged relative to the cantilever 2, it is also symmetrical with respect to the base 1. The base 1, as a supporting component, is responsible for the stability and load-bearing capacity of the overall structure, ensuring that the cantilever 2 and other components are firmly fixed to it. The support arm 4 is mainly used to improve the load-bearing capacity of the cantilever 2. Its symmetrical arrangement relative to the cantilever 2 enhances the balance of the cantilever 2 and the uniformity of force distribution on both sides. By aligning the cantilever 2 with the centerline of the base 1, the center of gravity of the entire device is made more stable, reducing the risk of tilting due to asymmetrical distribution, making the device safer and more reliable during operation.

[0036] Furthermore, in this embodiment, a plurality of limiting wheels 22 are provided along the length of the cantilever 2. The grooves of the limiting wheels 22 are at the same distance from the cantilever 2, so that the wire rope passes through the limiting wheels 22 sequentially in a direction parallel to the cantilever 2, and finally passes around the fixed pulley 21 at the end of the cantilever 2 for hoisting operations of the space frame components. The aforementioned limiting wheels 22 are used to restrict and guide the position of the wire rope. Preferably, the limiting wheels 22 are equally spaced along the length of the cantilever 2 to ensure that the wire rope can pass through each limiting wheel 22 sequentially in a direction parallel to the cantilever 2. The cantilever 2, as a supporting structure, provides an installation foundation for the limiting wheels 22 and bears the load during the hoisting process. The grooves of the limiting wheels 22 can ensure the stability of the wire rope position, which is beneficial for adjusting the tension and direction of the wire rope, and realizing the safe and precise hoisting of the space frame components.

[0037] Furthermore, in this embodiment, both the fixed pulley 21 and the limiting wheel 22 are mounted on the side of the cantilever 2 facing the base 1 via a fixing frame, which has a limiting hole for the wire rope to pass through. The fixed pulley 21 changes the traction direction of the wire rope, allowing the wire rope to move the grid frame components from bottom to top under the drive of the winch. The limiting wheel 22, through its limiting hole mounted on the fixing frame, restricts the range of motion of the wire rope, ensuring that the wire rope does not deviate from the preset path during hoisting, thereby ensuring the safety and accuracy of the hoisting operation, and simultaneously ensuring that the traction force is evenly distributed along the length of the cantilever 2. By providing a limiting hole in the fixing frame, a through-path for the wire rope is provided, ensuring that it passes smoothly through the limiting hole, thereby making the force on the cantilever 2 more balanced during hoisting, improving the safety and stability of the operation.

[0038] Furthermore, in this embodiment, the base 1 includes at least two vertical rods 11 and several horizontal rods vertically connected to the vertical rods 11. Each horizontal rod includes two fixed rods 12 positioned near the ends of the vertical rods 11. Casters 13 and clamp-type fixing clips 14 are symmetrically arranged on the fixed rods 12. The vertical rods 11 and horizontal rods are arranged on the same plane, forming a frame structure for the base 1. This ensures sufficient rigidity, deformation resistance, and load-bearing capacity while reducing the overall weight of the base 1, facilitating movement of the base 1 as needed to reach different construction sites. The casters 13 are symmetrically arranged on the fixed rods 12, making the device more stable during movement, reducing vibration and swaying, and improving movement flexibility. The clamp-type fixing clips 14 are used to fix the entire device to the pre-constructed concrete structure or space frame structure, ensuring accurate positioning of the entire device. Their symmetrical arrangement improves the balance and stability of the entire device during operation.

[0039] Furthermore, in this embodiment, the two ends of the fixing rod 12 protrude from the longitudinal rod 11, the clamp-type fixing clip 14 is disposed on the protruding part of the crossbar, and the caster wheel 13 is disposed on the opposite inner side of the clamp-type fixing clip 14. By disposing the clamp-type fixing clip 14 on the protruding part of the crossbar, the clamp-type fixing clip 14 can move within the range of the protruding part as needed, so that the distance between the two clamp-type fixing clips 14 meets the requirements for connection with the concrete structure or space frame structure, ensuring effective load transfer and improving the stability of the overall device fixation; by disposing the caster wheel 13 on the opposite inner side of the clamp-type fixing clip 14, the caster wheel 13 can more easily cooperate, improving the mobility of the device.

[0040] Furthermore, in this embodiment, the length of the fixing rod 12 and the distance between the two fixing rods 12 are matched with the distance between the ball nodes of the space frame structure. In this embodiment, the space frame structure includes ball nodes and steel components connected to the ball nodes. In use, by adjusting the position of the clamp-type fixing clip 14 on the fixing rod 12, the fixing rod 12 can be connected to the ball node of the space frame structure, so that the fixing rod 12 is stably fixed on the ball node, thereby making the overall device more stably fixed and improving the safety of hoisting operations.

[0041] In this embodiment, the clamp-type fixing clip 14 is detachably mounted on the fixing rod 12 and can be loosened or tightened, allowing the fixing rod 12 to be fixed to the ball joint by the clamp-type fixing clip 14, and also allowing the fixing rod 12 to move when the clamp-type fixing clip 14 is loosened. Preferably, the clamp-type fixing clip 14 is a U-shaped clip or other structure that can clamp the fixing rod 12 and the ball joint, and there are no restrictions on this.

[0042] In the above embodiment, the length of the fixed rod 12 is greater than the distance between two adjacent ball nodes, and the distance between the two outermost vertical rods 11 of the base 1 is less than the distance between two adjacent ball nodes; the distance between the two fixed rods 12 can be the same as the distance between two adjacent ball nodes in another direction, or it can be the same as the distance between two non-adjacent ball nodes in another direction, and there is no limitation here.

[0043] Furthermore, in this embodiment, several sets of support rods 5 are provided between the cantilever 2 and the base 1, forming a triangular support structure with the crossbar. The support rods 5 support the cantilever 2, and by forming a stable triangular support structure with the crossbar, the overall rigidity and deformation resistance of the cantilever 2 are enhanced, effectively distributing the load borne by the cantilever 2, reducing single-point stress, and improving the stability and reliability of the structure. The triangular support structure effectively transfers the load to the base 1, ensuring the stability of the cantilever 2 under various usage conditions, thereby achieving safe and efficient load-bearing and fixing functions.

[0044] Furthermore, in this embodiment, a plurality of support rods 5 are provided between the cantilever 2 and the support arm 4, and a plurality of connecting rods are provided between the support arms 4, forming a triangular support structure with the support rods 5 and the connecting rods. These support rods 5 also provide support for the cantilever 2. By forming a triangular support structure with the connecting rods, the rigidity and deformation resistance of the overall structure formed by the support arm 4 and the cantilever 2 are improved. The load is effectively transferred to the support arm 4 through the support rods 5, and then to the base 1, further improving the stability and safety of the cantilever 2.

[0045] The second aspect of this application also proposes a construction method for space frame components, employing the space frame component hoisting and positioning device described above, including the following steps:

[0046] S1. The installation of the space frame structure near the concrete structure is completed using a mobile crane;

[0047] S2. Assemble the hoisting and positioning device for the space frame components on the ground, and hoist it to the top of the installed space frame structure using a truck crane;

[0048] S3. Install the clip-on fixing clip 14 at the ball node position of the space frame structure;

[0049] S4. Adjust the position of the hoisting and positioning device for the space frame components, and lock the ball joint and the fixing rod 12 with the clamp-type fixing clip 14;

[0050] S5. Assemble the space frame components on the ground and carry out the hoisting operation using the space frame component hoisting and positioning device;

[0051] S6, loosen the clamp-type fixing clip 14, and move the hoisting and positioning device of the space frame component to the next construction position;

[0052] S7. Secure the ball joint and the fixing rod 12 again using the clamp-type fixing clip 14, and then carry out the hoisting operation.

[0053] In a specific embodiment of this application, the above-mentioned device and method were used to construct the roof grid structure of a canteen building. The grid structure is surrounded by a concrete roof, which has been completed in advance. The total area of ​​the grid structure is 2000㎡. The overall weight of the grid component hoisting and positioning device is 300Kg. The installation of the entire grid structure was completed in only 10 days, and no safety accidents or component collisions or damages occurred during the construction process.

[0054] The advantages and positive effects of this utility model are:

[0055] (1) By setting up a base 1, a cantilever 2, a support arm 4 and a hoisting mechanism 3, the whole device can be fixed at the location of the space frame component to be installed, so as to realize the hoisting and positioning of the space frame component from bottom to top. Then the whole device is moved to the next installation location, and the hoisting and positioning of all space frame components within the installation range of the space frame is gradually realized. The overall structure is simple and easy to use, which reduces the requirements for space and the surrounding environment of the space frame, improves the installation efficiency of the space frame component, effectively reduces the construction cost, and ensures construction safety.

[0056] (2) By setting the limiting wheel 22 along the length of the cantilever 2, the position of the wire rope can be effectively restricted and guided, ensuring the stability of the wire rope position, which is conducive to the safe and accurate hoisting of the grid components.

[0057] (3) By setting support rods 5 between cantilever 2 and base 1 and between cantilever 2 and support arm 4, a stable triangular support structure is formed, which enhances the overall rigidity and anti-deformation ability of the device, effectively disperses the load borne by cantilever 2, and improves the stability and reliability of the structure.

[0058] (4) By setting the clamp-type fixing card 14, the whole device can be stably fixed to the concrete structure or the space frame structure connection requirements, ensuring the effective transfer of load and improving the stability and safety of hoisting operation.

[0059] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A hoisting and positioning device for space frame components, characterized in that, include: The base has casters rotatably mounted on its bottom and clip-type fixing clips detachably mounted on its bottom. A cantilever, the bottom end of which is fixedly connected to one end of the base, the top end of which is inclined forward toward the other end of the base and is provided with a fixed pulley; The support arms are symmetrically arranged on both sides of the cantilever, with their bottom ends connected to the base and their top ends positioned near the fixed pulley. The hoisting mechanism includes a winch and a wire rope. The winch is mounted on the base, and the wire rope is led out from the drum of the winch, passes through the fixed pulley, and has a hook at its end.

2. The hoisting and positioning device for space frame components according to claim 1, characterized in that: The cantilever is aligned with the centerline of the base.

3. The hoisting and positioning device for space frame components according to claim 2, characterized in that: The cantilever is provided with a plurality of limiting wheels along its length direction. The grooves of the limiting wheels are at the same distance from the cantilever, so that the wire rope passes through the limiting wheels sequentially in a direction parallel to the cantilever.

4. The hoisting and positioning device for space frame components according to claim 3, characterized in that: Both the fixed pulley and the limiting wheel are mounted on the side of the cantilever facing the base via a fixing frame, and the fixing frame is provided with a limiting hole to accommodate the steel wire rope passing through.

5. The hoisting and positioning device for space frame components according to any one of claims 1-4, characterized in that: The base includes at least two vertical rods and several horizontal rods vertically connected to the vertical rods. Each horizontal rod includes two fixed rods respectively located near the two ends of the vertical rods. The casters and the clamp-type fixing clips are symmetrically arranged on the fixed rods.

6. The hoisting and positioning device for space frame components according to claim 5, characterized in that: The two ends of the fixing rod protrude from the longitudinal rod, the clamp-type fixing clip is disposed on the protruding part of the cross rod, and the universal wheel is disposed on the opposite inner side of the clamp-type fixing clip.

7. The hoisting and positioning device for space frame components according to claim 5, characterized in that: The length of the fixed rod and the distance between the two fixed rods are matched with the distance between the ball nodes of the space frame structure.

8. The hoisting and positioning device for space frame components according to claim 6 or 7, characterized in that: Several sets of support rods are provided between the cantilever and the base, and the support rods and the crossbar form a triangular support structure.

9. The hoisting and positioning device for space frame components according to claim 8, characterized in that: Several sets of support rods are provided between the cantilever and the support arm, and several connecting rods are provided between the support arms. The support rods and the connecting rods form a triangular support structure.

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