Lifting support device for electromechanical equipment installation and method of use

Abstract

The application discloses a lifting support device for electromechanical equipment installation and a use method, which comprises a main frame, lifting supports symmetrically arranged between the main frame and a load-bearing rod, each group of the lifting supports comprising a first support rod and a second support rod, the top of the first support rod and the top of the second support rod being hingedly connected to form a hinge end, the bottom end of the first support rod being hingedly connected to a side beam of the main frame, the bottom end of the second support rod being hingedly connected to a lifting adjusting mechanism, the load-bearing rod being arranged between the hinge ends, the lifting adjusting mechanism comprising a transverse screw rod, a sliding connecting piece and an adjusting unit, the transverse screw rod being rotatably installed between two opposite side beams of the main frame, the sliding connecting piece being threadedly connected with the transverse screw rod and being slidably connected to the main frame, and the adjusting unit being coaxially connected with the protruding end of the transverse screw rod. The application has the advantages of compact structure, adaptation to narrow space, manual and electric dual driving, precise lifting, high safety and significant improvement of construction efficiency.

Description

Technical Field

[0001] This invention belongs to the field of electromechanical equipment installation and construction technology, specifically relating to a lifting support device for electromechanical equipment installation and its usage method. Background Technology

[0002] In the field of electromechanical equipment installation, common work scenarios such as mezzanine floors, equipment rooms, integrated pipe corridors, mine tunnels, and chemical plant clusters are characterized by narrow working spaces, dense electromechanical pipelines / existing equipment, limited ground load-bearing capacity, and frequent high-altitude installations. These scenarios require frequent vertical lifting, horizontal movement, and precise positioning of small and medium-sized electromechanical equipment weighing 50–500 kg, including motors, pumps, fans, pipe components, and small prefabricated electromechanical parts. This directly determines the construction progress, operational safety, and equipment installation accuracy of the electromechanical installation project.

[0003] Traditional lifting methods for use in confined spaces have significant drawbacks in current electromechanical equipment installation:

[0004] Large lifting equipment such as truck cranes and forklifts are large in size and occupy a lot of space, making it impossible to enter narrow installation areas such as machine rooms and mezzanines. They also have high requirements for ground bearing capacity, making them difficult to adapt to the complex working conditions of electromechanical installation sites, which greatly limits their applicability.

[0005] Simple lifting tools such as chain hoists and lever hoists must rely on fixed upper lifting points. However, there are usually no pre-set reliable lifting points in the narrow space of electromechanical installation. Temporarily setting up / welding lifting points is time-consuming and laborious, can easily damage the building structure, and poses safety hazards such as lifting point failure and equipment falling. It is impossible to achieve precise installation of electromechanical equipment.

[0006] Mobile scaffolding and ladders combined with manual lifting can only complete simple equipment relocation. The lifting height is not adjustable, the installation positioning accuracy is poor, the labor intensity is high, the construction efficiency is low, and the equipment is prone to shaking and tipping when working at height, which can easily cause people to fall and equipment to be damaged by collisions. It does not meet the standardized installation requirements of electromechanical equipment.

[0007] Existing small lifting equipment mostly uses hydraulic drive or complex truss structures, generally weighing over 100kg, making disassembly and assembly inconvenient, and difficult to move flexibly in areas with dense electromechanical pipelines. Hydraulic drive equipment also suffers from oil leakage and pollution, unstable performance in low-temperature environments, and the purchase cost of a single unit exceeds 5,000 yuan, with high maintenance costs, failing to meet the needs of multi-point, temporary, and rapid electromechanical installation operations. Therefore, there is an urgent need for a dedicated lifting support device for electromechanical equipment. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lifting support device for the installation of electromechanical equipment. This device solves the pain points of traditional lifting equipment in narrow spaces such as mezzanine floors inside buildings, densely packed equipment rooms, mine tunnels, and clusters of chemical pipelines, which are "unable to enter, difficult to use, and costly". At the same time, it solves the defects of existing lifting supports, such as complex structure, inconvenient operation, low lifting accuracy, and poor safety.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] In a first aspect, a lifting support device for installing electromechanical equipment is provided, comprising:

[0011] Main framework;

[0012] At least two sets of lifting brackets are symmetrically arranged between the main frame and the load-bearing rod. Each set of lifting brackets includes a first support rod and a second support rod. The tops of the first support rod and the second support rod are hinged to each other to form a hinge end. The bottom end of the first support rod is a positioning end, which is hinged to the side beam of the main frame. The bottom end of the second support rod is a moving end, which is hinged to the lifting adjustment mechanism.

[0013] A load-bearing rod is provided between the hinged ends;

[0014] The lifting and adjusting mechanism includes a horizontal screw, a sliding connector, and an adjusting unit. The horizontal screw is rotatably mounted between two opposite side beams of the main frame. The sliding connector is threadedly engaged with the horizontal screw and slidably connected to the main frame. The adjusting unit is coaxially connected to the extended end of the horizontal screw and is used to input rotational power to the horizontal screw.

[0015] Furthermore, the sliding connector has a through internal threaded hole at its center, and the transverse screw is coaxially inserted into the internal threaded hole. The two are engaged by threads to form a helical transmission pair, and the moving end of the second support rod is hinged to the sliding connector.

[0016] Furthermore, guide grooves are respectively provided on the two opposite side beams of the main frame. The guide grooves extend along the length of the side beams, and the openings of each guide groove are arranged opposite to each other. The two ends of the sliding connector extend into the corresponding guide grooves and form a sliding fit with the guide grooves.

[0017] Furthermore, it also includes a locking bolt: a bolt hole is provided on the side beam of the main frame corresponding to the positioning end, and a bolt hole is provided on the positioning end; the locking bolt is inserted laterally from the outside of the side beam of the main frame into the bolt hole and the positioning end, and the rotational freedom of the first support rod around its hinge axis is restricted by the pin connection, so as to realize the mechanical locking of the lifting height.

[0018] Furthermore, the adjustment unit includes an operating handle: the central base of the operating handle is coaxially connected to the extended end of the transverse screw.

[0019] Furthermore, the adjustment unit also includes a nut interface: the nut interface is located at the center of the outer end face of the operating handle center base.

[0020] Furthermore, casters are installed at the four corners of the bottom of the main frame.

[0021] Secondly, a method for using a lifting support device for installing electromechanical equipment is provided, including the following steps:

[0022] S1: Move the device to the target working position;

[0023] S2: Place the equipment to be installed on the upper part of the load-bearing rod;

[0024] S3: Drive the transverse screw to rotate, causing the sliding connector to move axially, raising the equipment to near the installation height;

[0025] S4: Fine-tune the horizontal screw to achieve the precise installation height of the equipment;

[0026] S5: Tighten the locking bolt to restrict the rotation of the first support rod positioning end about its hinge axis and lock the lifting height;

[0027] S6: After the equipment installation is completed, loosen the locking bolt, reverse the direction of the transverse screw to lower the device, and then move the device away.

[0028] The advantages and positive effects of this invention are:

[0029] This invention features a simple and compact structure, small size, and light weight, enabling easy access to narrow spaces inaccessible to traditional lifting equipment. It employs a screw-driven lifting system, offering high adjustment precision and smooth lifting. It combines manual and electric dual-drive modes, allowing operation in environments without power and significantly improving work efficiency when power is available. Mechanical locking via locking bolts prevents accidental descent even if the screw self-locking fails, ensuring high safety. Overall, it is easy to operate, requiring no professional training, and significantly improves the efficiency of electromechanical equipment installation while reducing construction costs and safety risks. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a lifting support device according to an embodiment of the present invention;

[0031] Figure 2 This is a flowchart illustrating the method of using the lifting support device according to an embodiment of the present invention;

[0032] In the diagram: 1. Main frame, 11. Guide groove, 2. Lifting bracket, 21. First support rod, 22. Second support rod, 3. Lifting adjustment mechanism, 31. Horizontal screw, 32. Sliding connector, 33. Adjustment unit, 331. Operating handle, 332. Nut interface, 4. Load-bearing rod, 5. Locking bolt, 6. Casters. Detailed Implementation

[0033] The present invention will now be described more fully with reference to the accompanying drawings, which illustrate exemplary embodiments of the invention. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 As shown, the present invention provides a lifting support device for installing electromechanical equipment, which is used for vertical lifting, horizontal displacement and precise installation of small and medium-sized electromechanical equipment weighing 50-500kg in narrow spaces, including a main frame 1, a lifting support 2 and a lifting adjustment mechanism 3.

[0036] The main frame 1 is a rectangular frame structure, welded from high-strength steel. The main frame 1 serves as the overall load-bearing base of the device, providing installation support and sliding guidance for each moving part.

[0037] At least two sets of lifting brackets 2 are provided, symmetrically arranged on both sides of the main frame 1 and connected to the lifting adjustment mechanism 3. They are made of high-strength round steel or square steel and are used to support the load-bearing rods 4 and transmit lifting power. The load-bearing rods 4 are used to directly support the electromechanical equipment to be installed.

[0038] The sliding connector 32 of the lifting adjustment mechanism 3 is slidably disposed inside the main frame 1 and is hinged to the second support rod 22 of the lifting bracket 2. It is used to drive the lifting bracket 2 to rotate around its connection point with the main frame 1, so as to realize the continuous adjustment of the lifting height of the device.

[0039] To ensure the load-bearing capacity and lifting synchronization of the device, each set of lifting brackets 2 includes a first support rod 21 and a second support rod 22. The top ends of the first support rod 21 and the second support rod 22 are hinged to each other to form a hinge end. The end of the first support rod 21 away from the hinge end is the positioning end, which is hinged to the side beam of the main frame 1; the end of the second support rod 22 away from the hinge end is the moving end, which is hinged to the sliding connector 32 of the lifting adjustment mechanism 3.

[0040] In a preferred embodiment of the present invention, the hinged ends of the first support rod 21 and the second support rod 22 in the two sets of lifting brackets 2 are hinged to the same load-bearing rod 4. The two sets of lifting brackets 2 and the load-bearing rod 4 together form a symmetrical scissor-type support structure. The load-bearing rod 4 is made of high-strength round steel, connecting the two sets of lifting brackets 2 into a whole, effectively improving the overall rigidity and stability of the device, ensuring the synchronization of the lifting process, and preventing the equipment from tilting and slipping.

[0041] To provide a simple and precise lifting adjustment mechanism, the lifting adjustment mechanism 3 includes a transverse screw 31, a sliding connector 32, and an adjustment unit 33. The transverse screw 31 is an externally threaded shaft component, with its two ends rotatably mounted between two opposite side beams of the main frame 1, and can rotate freely around its own axis. The transverse screw 31 can be a trapezoidal threaded screw, a triangular threaded screw, or a sawtooth threaded screw. Preferably, this application uses a trapezoidal threaded screw, which has good self-locking performance. Under normal working conditions, no additional locking is required to prevent the device from sliding down on its own. The locking bolt 5 provides double safety protection.

[0042] The sliding connector 32 is a rectangular block component with a through-hole internally threaded hole at its center. The transverse screw 31 is coaxially inserted into the internally threaded hole, and the two are engaged by threads to form a helical transmission pair. Guide grooves 11 are respectively provided on the two opposite side beams of the main frame 1. The guide grooves 11 extend along the length of the side beams, and the openings of the two guide grooves 11 are opposite to each other. Both ends of the sliding connector 32 extend into the corresponding guide grooves 11, forming a sliding fit. The guide grooves 11 provide precise sliding guidance for the sliding connector 32, restricting its rotational freedom around the axis of the transverse screw 31, ensuring that when the transverse screw 31 rotates, the sliding connector 32 can only perform linear reciprocating motion along the axial direction of the transverse screw 31.

[0043] The adjusting unit 33 is coaxially connected to the extended end of the transverse screw 31 and is used to input rotational power to the transverse screw 31. Rotating the transverse screw 31 can drive the sliding connector 32 to move linearly along its axis, thereby causing the moving end of the second support rod 22 to move away from or closer to the positioning end, so that the scissor-type support structure can be unfolded or retracted to realize the vertical lifting and lowering adjustment of the load-bearing part.

[0044] To enable manual lifting and meet the operational needs in environments without power, the adjustment unit 33 includes an operating handle 331. The central base of the operating handle 331 is coaxially connected to the extended end of the transverse screw 31, which can be achieved through welding or a key connection. In this embodiment, the operating handle 331 has a cross-shaped structure. The design of the cross-shaped operating handle 331 conforms to ergonomics, allowing the operator to rotate the handle by gripping any one or two opposing operating arms. The longer lever arm provides a larger torque, thus easily driving the transverse screw 31 to rotate.

[0045] To achieve rapid electric lifting and significantly improve work efficiency, the adjustment unit 33 also includes a nut interface 332, which is located at the center of the outer end face of the central base of the operating handle 331. In this embodiment, the nut interface 332 is an external hexagonal nut interface and is coaxially arranged with the transverse screw 31, used to cooperate with an electric wrench to achieve rapid lifting and lowering. When there is power, the electric wrench drives the transverse screw 31 to rotate through the nut interface 332, and the lifting speed can be increased by 3-5 times compared with pure manual operation, greatly shortening the operation time.

[0046] To facilitate the movement and adjustment of the device in confined spaces, casters 6 are installed at the four corners of the bottom of the main frame 1. In a preferred embodiment, the casters 6 are heavy-duty casters with brakes, which can enable the device to move freely 360° and shift horizontally, and can also be locked during operation to prevent the device from sliding and shifting, thus ensuring operational safety.

[0047] To lock the fixing device after the lifting height adjustment is completed and prevent accidental descent during operation, a locking bolt 5 is also included. A transverse through bolt hole is provided on the side beam of the main frame 1 corresponding to the positioning end of the first support rod 21, and a corresponding bolt hole is provided on the positioning end of the first support rod 21. The locking bolt 5 is inserted transversely from the outside of the side beam of the main frame 1 into the bolt hole and the positioning end of the first support rod 21, restricting the rotational freedom of the first support rod 21 around its hinge axis through a pin connection, thus achieving mechanical locking of the lifting height. Even if the self-locking performance of the transverse screw 31 fails unexpectedly, it can effectively prevent the device from descent unexpectedly, significantly improving construction safety.

[0048] To address the technical issues of small contact area and easy slippage / tipping when a single load-bearing rod directly supports equipment, a detachable load-bearing platform can be installed on top of the load-bearing rod 4. The load-bearing platform is made of hot-rolled checkered steel plate, and its planar dimensions are consistent with the external dimensions of the main frame 1. Two parallel U-shaped connecting seats are welded to the lower surface of the load-bearing platform. The distance between the two U-shaped connecting seats matches the diameter of the load-bearing rod 4. After the load-bearing rod 4 is inserted between the two U-shaped connecting seats, the U-shaped connecting seats are securely connected to the load-bearing rod 4 using four M10 hexagonal socket bolts. This connection method is simple in structure, convenient to assemble and disassemble, and has reliable connection strength. Finite element analysis has verified that it can withstand a rated load of 500 kg.

[0049] The upper surface of the support platform can be made of a one-piece molded steel plate with a diamond-patterned anti-slip texture. The diamond-patterned anti-slip texture effectively increases the static friction coefficient between the support platform and the bottom of the equipment to be installed, preventing slippage or displacement even under slight vibration or tilting of the equipment. Simultaneously, the patterned steel plate itself has high bending strength and rigidity; when bearing a 500kg load, its maximum deflection does not exceed 2mm, ensuring the levelness of the equipment and meeting the requirements for precise installation of electromechanical equipment.

[0050] As an alternative implementation method, the support platform can be customized with different structural forms according to the specific shape of the equipment to be installed. For example, for cylindrical equipment such as water pumps and motors, a support platform with an arc-shaped positioning groove on the upper surface can be used, and the radius of the arc-shaped positioning groove can be adjusted according to the diameter of the equipment base; for irregularly shaped equipment, a support platform with adjustable clamping fixtures can be used, which firmly fix the equipment to the support platform, further improving operational safety. The detachable design of the support platform allows the device to adapt to the installation needs of different types of electromechanical equipment, greatly improving the applicability and flexibility of the device.

[0051] The above structure will be described below with reference to a preferred embodiment:

[0052] The main frame 1 is welded from 50×50×3mm high-strength square steel, with external dimensions of 800mm×600mm×100mm. The guide grooves 11 on both sides of the main frame 1 are 10mm deep and their width matches the end dimensions of the sliding connector 32. The single-sided gap is 0.2-0.5mm, which ensures smooth sliding and avoids shaking that affects the lifting accuracy.

[0053] The lifting support 2 is made of φ20mm round steel. The first support rod 21 and the second support rod 22 of each lifting support 2 are cross-hinged at the hinge point by φ12mm pins, and the maximum lifting height is 1200mm. The load-bearing rod 4 is made of φ35mm round steel (or 40×40×3mm square steel), and its two ends are respectively hinged to the hinge ends of the first support rod 21 and the second support rod 22 in the two sets of lifting supports 2 by pins.

[0054] The transverse screw 31 is an M20 trapezoidal thread screw with a length of 550mm and a pitch of 4mm. It has good self-locking performance and can prevent the device from sliding down under normal working conditions. The sliding connector 32 is made of 45# steel and has dimensions of 480mm×60mm×30mm. Both ends of the sliding connector 32 extend directly into the guide groove 11, forming a clearance fit with the guide groove 11.

[0055] The operating handle 331 of the adjustment unit 33 is made of φ16mm round steel welded into a cross shape, with an arm length of 220mm. Its central base is welded and fixed to the protruding end of the transverse screw 31. An M16 standard hexagonal nut is welded to the outer end face of the central base as a nut interface 332. The caster 6 is a heavy-duty caster with brakes and a load-bearing capacity of 500kg. The locking bolts 5 are M12 high-strength bolts, with two bolts in total, corresponding to the positioning ends of the two first support rods 21 respectively.

[0056] like Figure 2 As shown, the present invention also provides a method of using the above-mentioned lifting support device for installing electromechanical equipment, comprising the following steps:

[0057] S10: Move the device to the target working position via the caster wheel 6, and press the brake of the caster wheel 6 to lock and fix the device.

[0058] S20: Place the equipment to be installed on top of the load-bearing rod 4; if the device is equipped with a support platform, place it on the upper surface of the support platform; ensure that the center of gravity of the equipment is located in the center of the device to prevent tilting and slipping.

[0059] S30: Drive the transverse screw 31 to rotate, causing the sliding connector 32 to move axially, raising the equipment to near the installation height;

[0060] S40: Fine-tune the horizontal screw 31 to achieve the precise installation height of the equipment;

[0061] S50: Tighten the locking bolt 5 to restrict the rotation of the positioning end of the first support rod 21 around its hinge axis and lock the lifting height; during subsequent operations, it is strictly forbidden to loosen the locking bolt 5;

[0062] S60: After the equipment is installed, loosen the locking bolt 5, reverse the drive of the transverse screw 31 to lower the device to the initial height, and then move the device away.

[0063] During construction, the device is first moved to the motor installation position in the equipment room using the casters 6, and the casters 6 are locked. The 300kg motor is then placed stably on top of the load-bearing rod 4. An electric wrench is used to drive the horizontal screw 31 through the nut interface 332 to raise the motor to an installation height of 1.2m. The two locking bolts 5 are tightened to lock and fix the device. The motor is then aligned and the bolts are secured. After installation, the locking bolts 5 are loosened, and the operating handle 331 is rotated in the opposite direction to lower the device to its initial height. The device is then removed. The entire operation requires only two operators and takes approximately 15 minutes. Compared to the traditional manual chain hoist operation, this method is more than three times more efficient and eliminates the need for scaffolding, significantly reducing construction costs and safety risks.

[0064] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A lifting support device for installing electromechanical equipment, characterized in that, include: Main framework; At least two sets of lifting brackets are symmetrically arranged between the main frame and the load-bearing rod. Each set of lifting brackets includes a first support rod and a second support rod. The tops of the first support rod and the second support rod are hinged to each other to form a hinge end. The bottom end of the first support rod is a positioning end, which is hinged to the side beam of the main frame. The bottom end of the second support rod is a moving end, which is hinged to the lifting adjustment mechanism. A load-bearing rod is provided between the hinged ends; The lifting and adjusting mechanism includes a horizontal screw, a sliding connector, and an adjusting unit. The horizontal screw is rotatably mounted between two opposite side beams of the main frame. The sliding connector is threadedly engaged with the horizontal screw and slidably connected to the main frame. The adjusting unit is coaxially connected to the extended end of the horizontal screw and is used to input rotational power to the horizontal screw.

2. The apparatus of claim 1, wherein: The sliding connector has a through internal threaded hole at its center, and the transverse screw is coaxially inserted into the internal threaded hole. The two are engaged by threads to form a helical transmission pair, and the moving end of the second support rod is hinged to the sliding connector.

3. The apparatus according to claim 1, characterized in that: Guide grooves are respectively provided on the two opposite side beams of the main frame. The guide grooves extend along the length of the side beams and the openings of the guide grooves are arranged opposite each other. The two ends of the sliding connector extend into the corresponding guide grooves and form a sliding fit with the guide grooves.

4. The apparatus according to claim 1, characterized in that, It also includes a locking bolt: a bolt hole is provided on the side beam of the main frame corresponding to the positioning end, and a bolt hole is provided on the positioning end; the locking bolt is inserted laterally from the outside of the side beam of the main frame into the bolt hole and the positioning end, and the first support rod is restricted from rotating around its hinge axis by a pin connection, so as to achieve mechanical locking of the lifting height.

5. The apparatus according to claim 1, characterized in that, The adjustment unit includes an operating handle: the central base of the operating handle is coaxially connected to the extended end of the transverse screw.

6. The apparatus according to claim 5, characterized in that, The adjustment unit also includes a nut interface: the nut interface is located at the center of the outer end face of the operating handle center base.

7. The apparatus according to claim 1, characterized in that, The main frame is equipped with casters at each of the four corners at its bottom.

8. A method of using a lifting support device for installing electromechanical equipment, comprising using the lifting support device for installing electromechanical equipment as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Move the device to the target working position; S2: Place the equipment to be installed on the upper part of the load-bearing rod; S3: Drive the transverse screw to rotate, causing the sliding connector to move axially, raising the equipment to near the installation height; S4: Fine-tune the horizontal screw to achieve the precise installation height of the equipment; S5: Tighten the locking bolt to restrict the rotation of the first support rod positioning end about its hinge axis and lock the lifting height; S6: After the equipment installation is completed, loosen the locking bolt, reverse the direction of the transverse screw to lower the device, and then move the device away.

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