Hoisting structure for hoisting steel beams from a window of an existing structure and hoisting method

Abstract

This invention discloses a hoisting structure and method for suspending steel beams from an existing window structure. The hoisting structure includes: hoisting equipment for suspending the steel beam to the window; two sliding seats for protecting the bottom edge of the window, the two sliding seats being detachably connected to the bottom edge of the window; and a sliding plate for the steel beam to slide from the outside to the inside, the sliding plate being movably supported on the top of the two sliding seats. The first end of the sliding plate is located inside the window, and a telescopic component for controlling the tilt angle of the sliding plate is connected between the bottom of the first end of the sliding plate and the existing floor slab. The second end of the sliding plate is located outside the window, and the second end of the sliding plate extends obliquely upward to form a receiving section for receiving the steel beam. The hoisting stability is improved by setting up the hoisting structure.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a hoisting structure and method for hoisting steel beams from windows of existing structures. Background Technology

[0002] After a building is completed, changes in its business type, usage, and structural stress often lead to alterations in the original building's space and layout, making demolition and reinforcement essential for renovation. The organic combination of demolition and reinforcement can revitalize existing buildings and is poised to become the mainstream approach in the future. During the reinforcement of existing buildings, steel beam reinforcement is frequently used. However, the large length of the steel beams makes vertical transport impossible using existing elevators; the materials must be brought indoors through door and window openings.

[0003] As attached Figure 1 and attached Figure 2 As shown, the traditional hoisting method involves erecting a scaffolding platform 4 near the window indoors, placing the scaffolding platform 4 on the bottom edge of the window, and using a hoisting hoist 3 installed indoors in conjunction with the outdoor hoisting equipment 1 to pull the steel beam 2 into the room. This method has the following disadvantages: When the steel beam 2 is hoisted from a height to the scaffolding platform 4, the horizontality of the steel beam 2 needs to be strictly controlled, requiring high skill from the operators of the hoisting equipment 1. Manual assistance is required when it enters the window, and the risk of falling from a height is high. After receiving the load of the steel beam 2, the scaffolding platform 4 exerts some pressure on the bottom edge of the window, and under poor control, the steel beam 2 is prone to swaying from side to side, which may lead to damage to the original window frame or structure. After the steel beam 2 enters the scaffolding platform 4, it needs to be slowly pulled by the hand-operated hoisting hoist 3. When the steel beam 2 reaches the balance point and is about to enter the indoor transport equipment 5, it is prone to slipping momentarily. If protection is not in place, it can easily damage the floor and cause personal injury. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hoisting structure and method for hoisting steel beams from windows of existing structures, thereby improving the stability of steel beam hoisting and avoiding damage to existing structures.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is a hoisting structure for suspending steel beams from windows of existing structures, comprising:

[0006] Lifting equipment used to hoist steel beams to windows;

[0007] Two sliding seats are used to protect the bottom edge of the window, and the two sliding seats are detachably connected to the bottom edge of the window;

[0008] A sliding plate for the steel beam to slide from the outside to the inside is provided. The sliding plate is movably supported on the top of two sliding seats. The first end of the sliding plate is located inside the room. A telescopic component for controlling the tilt angle of the sliding plate is connected between the bottom of the first end of the sliding plate and the existing floor slab. The second end of the sliding plate is located outside the room. The second end of the sliding plate extends obliquely upward and forms a receiving section for receiving the steel beam.

[0009] The present invention further improves the existing window-mounted steel beam hoisting structure by having multiple electromagnets at intervals on the top of the sliding plate along the sliding direction of the steel beam to slow down the sliding speed of the steel beam.

[0010] The present invention further improves the existing window hoisting steel beam hoisting structure by including an inverted U-shaped support ring on the sliding seat. The two flanges of the inverted U-shaped support ring are connected to suction cups on their respective inner and outer sides for connecting to the bottom wall of the window. The sliding plate is movably supported on the top of the inverted U-shaped support ring.

[0011] The present invention further improves the existing window-mounted steel beam hoisting structure by having the sliding plate have a V-shaped cross-section along the sliding direction perpendicular to the steel beam.

[0012] The present invention further improves the existing window-mounted steel beam hoisting structure by including a hydraulic rod as the telescopic component, wherein the top end of the hydraulic rod is hinged to the sliding plate and the bottom end of the hydraulic rod is fixedly connected to the existing floor slab.

[0013] The present invention further improves the existing window-mounted steel beam hoisting structure by providing hoisting points on the steel beam for the hoisting equipment to connect with the hoisting ropes, and the hoisting points are set off from the center of gravity of the steel beam.

[0014] The present invention further improves the existing window-mounted steel beam hoisting structure by providing a baffle plate detachably connected to the top of the first end of the sliding plate to prevent the steel beam from slipping off.

[0015] A method for hoisting steel beams from an existing window structure, comprising the following steps:

[0016] Step 1: Provide the above-mentioned hoisting structure for lifting steel beams from the existing window structure and install it in place;

[0017] Step 2: Use hoisting equipment to hoist the steel beam to the window;

[0018] Step 3: Bring one end of the steel beam close to and onto the connecting section, and slowly lower the steel beam so that it slides along the sliding plate into the room;

[0019] Step 4: When the steel beam stops sliding and has not reached the first end of the sliding plate, control the telescopic component to shorten, so that the steel beam slides further into the room until it reaches the first end of the sliding plate and is received by the room.

[0020] The present invention further improves the existing window-mounting steel beam hoisting method by providing hoisting points on the steel beam for the hoisting equipment to connect to the hoisting ropes, and the hoisting points are set off from the center of gravity of the steel beam;

[0021] When performing step 3 above, the relatively downward inclined end of the steel beam is brought close to and placed on the connecting section.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] 1. By setting an upwardly inclined guide section steel beam, the steel beam can be automatically slid from the outside to the inside.

[0024] 2. By setting up telescopic components to control the tilt angle of the slide plate, it is easier to further control the sliding of the steel beam without the need for additional traction. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a steel beam being hoisted through a window using traditional hoisting methods.

[0027] Figure 2 This is a schematic diagram illustrating the transfer of steel beams to indoor transport equipment using traditional hoisting methods.

[0028] Figure 3 This is a side view of the invention in its usage state;

[0029] Figure 4 This is a front view of the invention in its usage state;

[0030] Figure 5 This is a schematic diagram of the structure of the sliding seat of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the telescopic component of the present invention;

[0032] Figure 7 This is a schematic diagram of the contact between the steel beam and the connecting section of the present invention;

[0033] Figure 8This is a schematic diagram of the steel beam sliding to the equilibrium point according to the present invention;

[0034] Figure 9 This is a schematic diagram of the steel beam sliding to the baffle according to the present invention;

[0035] Figure 10 This is a schematic diagram of the steel beam sliding into the indoor transport equipment of the present invention;

[0036] In the diagram: 1. Lifting equipment; 2. Steel beam; 3. Lifting hoist; 4. Scaffolding platform; 5. Indoor transportation equipment; 6. Slide plate; 7. Sliding seat; 701. Inverted U-shaped support ring; 702. Suction cup; 8. Connecting section; 9. Electromagnet; 10. Hydraulic rod; 11. Lateral support; 12. Anchor bolt; 13. Baffle. Detailed Implementation

[0037] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0038] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more comprehensive explanation of the hoisting structure and method for suspending steel beams from existing window structures according to the present invention.

[0039] Please see Figures 3 to 10 As shown, the hoisting structure for lifting steel beams from the windows of an existing structure includes:

[0040] Lifting equipment 1 is used to hoist steel beam 2 to the window;

[0041] Two sliding seats 7 are used to protect the bottom edge of the window, and the two sliding seats 7 are detachably connected to the bottom edge of the window;

[0042] The slide plate 6, which allows the steel beam 2 to slide from the outside to the inside, is movably supported on the top of the two sliding seats 7. The first end of the slide plate 6 is located inside the room, and a telescopic member is connected between the bottom of the first end of the slide plate 6 and the existing floor slab to control the tilt angle of the slide plate 6. The second end of the slide plate 6 is located outside the room, and the second end of the slide plate 6 extends obliquely upward to form a receiving section 8 for receiving the steel beam 2.

[0043] Specifically, in the initial state of the slide plate 6, the non-connecting section of the slide plate 6 is in a horizontal state.

[0044] By setting up this telescopic component, the non-guided section of the slide plate 6 is tilted towards the interior, making it easier for the steel beam 2 to slide automatically from the outside to the inside.

[0045] Preferably, the top of the slide plate 6 is connected at intervals along the sliding direction of the steel beam 2 by a plurality of electromagnets 9 for slowing down the sliding speed of the steel beam 2.

[0046] By setting the electromagnet 9, when the steel beam 2 slides on the slide plate 6, the sliding speed of the steel beam 2 is slowed down, so that the sliding speed of the steel beam 2 is kept within a controllable range, and the steel beam 2 is prevented from sliding directly off the slide plate 6.

[0047] Preferably, the sliding seat 7 includes an inverted U-shaped support ring 701, and suction cups 702 for connecting to the inner and outer sides of the bottom wall of the window are connected to the two flanges of the inverted U-shaped support ring 701 respectively. The sliding plate 6 is movably supported on the top of the inverted U-shaped support ring 701.

[0048] By setting the inverted U-shaped support ring 701, the sliding plate 6 is prevented from being directly supported at the window, thus avoiding squeezing and damaging the window.

[0049] Preferably, the slide plate 6 has a V-shaped cross-section along the sliding direction perpendicular to the steel beam 2.

[0050] Specifically, the central axis of the slide plate 6 is located between the two sliding seats 7.

[0051] By setting the cross-section of the slide plate 6 along the sliding direction perpendicular to the steel beam 2 into a V-shape, the stability of the slide plate 6 is ensured.

[0052] Preferably, the telescopic member includes a hydraulic rod 10, the top end of which is hinged to the slide plate 6, and the bottom end of which is fixedly connected to the existing floor slab.

[0053] Specifically, the bottom end of the hydraulic rod 10 is connected to the existing floor slab via anchor bolts 12.

[0054] By installing the anchor bolt 12, the support stability of the hydraulic rod 10 is improved.

[0055] Specifically, the hydraulic rod 10 is also connected to the existing floor slab by a lateral support 11.

[0056] By setting the lateral support 11, the support stability of the hydraulic rod 10 is further improved.

[0057] Specifically, the number of the telescopic components is at least two, and the at least two telescopic components are distributed at intervals on both sides of the central axis of the slide plate 6.

[0058] By incorporating at least two of these telescopic components, the stability of the skateboard 6 is improved.

[0059] Preferably, the steel beam 2 is provided with a lifting point for the hoisting equipment 1 to connect the lifting rope, and the lifting point is set off from the center of gravity of the steel beam 2.

[0060] Preferably, the top of the first end of the slide plate 6 is detachably connected to a baffle 13 for preventing the steel beam 2 from slipping off.

[0061] A method for hoisting steel beams from an existing window structure, comprising the following steps:

[0062] Step 1: Provide the above-mentioned hoisting structure for lifting steel beams from the existing window structure and install it in place;

[0063] Step 2: Use hoisting equipment 1 to hoist steel beam 2 to the window;

[0064] Step 3: Place one end of the steel beam 2 close to and onto the receiving section 8, and slowly lower the steel beam 2 so that it slides along the sliding plate 6 into the room;

[0065] Step 4: When the steel beam stops sliding and has not reached the first end of the sliding plate, control the telescopic component to shorten, so that the steel beam 2 slides further into the room until it reaches the first end of the sliding plate and is received by the room.

[0066] Preferably, the steel beam 2 is provided with a lifting point for the hoisting equipment 1 to connect the lifting rope, and the lifting point is set off from the center of gravity of the steel beam 2;

[0067] When performing step 3 above, the relatively downward inclined end of the steel beam 2 is brought close to and placed on the connecting section 8.

[0068] Because the lifting point of the design is off the center of gravity of the steel beam 2, when the steel beam 2 is hoisted and suspended, one end will inevitably tilt downwards. By bringing the relatively downward tilted end of the steel beam 2 close to and supporting it to the connecting section 8, it is easier for the steel beam 2 to slide from the outside to the inside along the sliding plate 6.

[0069] Specifically, the top of the slide plate 6 is connected with multiple electromagnets 9 at intervals along the sliding direction of the steel beam 2;

[0070] Before performing step 3 above, the electromagnet 9 is activated. When the relatively downward tilted end of the steel beam 2 approaches the receiving section 8, the electromagnet 9 directly attracts the steel beam 2 to the receiving section 8.

[0071] Supporting one end of the steel beam 2 to the connecting section 8 is a great test of the operator's skills in hoisting equipment 1. If the steel beam 2 is not lowered into place, it may damage the sliding plate 6. Therefore, by setting up the electromagnet 9, the steel beam 2 only needs to be brought close to the sliding plate 6, and the electromagnet 9 on the sliding plate 6 will automatically attract the steel beam 2 to the top of the sliding plate 6, which improves the safety of construction.

[0072] Specifically, a baffle 13 is detachably connected to the top of the first end of the skateboard 6;

[0073] When performing step 4 above, control the telescopic component to shorten until the steel beam 2 slides to the baffle 13, remove the baffle 13 and control the telescopic component to shorten further so that the steel beam 2 continues to slide and is guided from the indoor area.

[0074] By setting the baffle 13, the sliding of the steel beam 2 is divided into two steps, which avoids the steel beam 2 sliding into place too quickly and becoming uncontrollable, thus improving construction safety.

[0075] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0076] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A hoisting structure for suspending steel beams from an existing window structure, characterized in that, include: Lifting equipment used to hoist steel beams to windows; Two sliding seats are used to protect the bottom edge of the window, and the two sliding seats are detachably connected to the bottom edge of the window; A sliding plate for the steel beam to slide from outdoors to indoors is provided. The sliding plate is movably supported on top of two sliding seats. The first end of the sliding plate is located indoors, and a telescopic component for controlling the tilt angle of the sliding plate is connected between the bottom of the first end of the sliding plate and the existing floor slab. The second end of the sliding plate is located outdoors, and extends obliquely upward to form a receiving section for receiving the steel beam. Multiple electromagnets for slowing down the sliding speed of the steel beam are connected at intervals along the sliding direction of the steel beam on the top of the sliding plate. The steel beam is provided with lifting points for the hoisting rope of the hoisting equipment to connect to, and the lifting points are set off from the center of gravity of the steel beam.

2. The hoisting structure for suspending steel beams from windows of an existing structure as described in claim 1, characterized in that, The sliding seat includes an inverted U-shaped support ring. The two flanges of the inverted U-shaped support ring are each connected to suction cups on their respective inner and outer sides for connecting to the bottom wall of the window. The sliding plate is movably supported on the top of the inverted U-shaped support ring.

3. The hoisting structure for suspending steel beams from windows of an existing structure as described in claim 1, characterized in that, The slide plate has a V-shaped cross-section along the sliding direction perpendicular to the steel beam.

4. The hoisting structure for suspending steel beams from windows of an existing structure as described in claim 1, characterized in that, The telescopic component includes a hydraulic rod, the top end of which is hinged to the sliding plate, and the bottom end of which is fixedly connected to the existing floor slab.

5. The hoisting structure for suspending steel beams from windows of an existing structure as described in claim 1, characterized in that, The top of the first end of the slide plate is detachably connected to a baffle to prevent the steel beam from slipping off.

6. A method for hoisting steel beams from windows of an existing structure, characterized in that, Including the following steps: Step 1: Provide and install the hoisting structure for hoisting steel beams from the window of the existing structure as described in claim 1; Step 2: Use hoisting equipment to hoist the steel beam to the window; Step 3: Bring one end of the steel beam close to and onto the connecting section, and slowly lower the steel beam so that it slides along the sliding plate into the room; Step 4: When the steel beam stops sliding and has not reached the first end of the sliding plate, control the telescopic component to shorten, so that the steel beam slides further into the room until it reaches the first end of the sliding plate and is received by the room.

7. The method for hoisting steel beams from windows of an existing structure as described in claim 6, characterized in that, The steel beam is provided with lifting points for the hoisting equipment to connect to the lifting ropes, and the lifting points are set off from the center of gravity of the steel beam; When performing step 3 above, the relatively downward inclined end of the steel beam is brought close to and placed on the connecting section.

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