Lifting equipment for mechanical and electrical installation construction

Abstract

The invention relates to the technical field of mechanical and electrical installation, in particular to lifting equipment for mechanical and electrical installation construction.The lifting equipment comprises a lifting truck and a lifting platform installed at the top of the lifting truck, a lifting seat is fixedly installed at the top end of a rotary drum, limiting side plates are arranged at the two ends of the top of the lifting seat, and an adjusting mechanism is arranged in the lifting seat; a first circular plate is movably mounted in the rotating cylinder, a fixing mechanism is arranged in the rotating cylinder, a clamping mechanism is arranged at the end of the lifting seat, and an unlocking mechanism is arranged in the second circular plate. The air pipe lifting device has the beneficial effects that an air pipe is placed at the top of the lifting base, after limiting on the rotary drum is relieved, an operator can push the air pipe and adjust the angle of the air pipe, multiple workers do not need to be matched to lift the air pipe for angle adjustment, friction between the bottom of the air pipe and the lifting base cannot be caused, and the working efficiency is improved. And the air pipe mounting efficiency of operators is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical and electrical installation, and particularly to a lifting device for mechanical and electrical installation construction. Background Technique

[0002] In mechanical and electrical installation construction, lift trucks (such as scissor lift platforms, articulated boom aerial work platforms, vehicle-mounted elevators, etc.) are important auxiliary equipment, mainly used in scenarios such as working at heights, material transportation, equipment installation, etc. Lift trucks usually consist of scissor lift mechanisms, chassis, tires and other structures.

[0003] When installing galvanized steel sheet air ducts, due to the relatively high installation position, lift trucks are usually also used. The galvanized steel sheet air duct is moved to the platform in the lift truck, and then the scissor lift mechanism is used to lift the galvanized steel sheet air duct to the hanger position. By using the hanger to adjust the angle of the air duct, the butt joint and welding between the flanges are then carried out.

[0004] For the installation of indoor air ducts, due to the limited space indoors, such as in underground garages where there are multiple pipes distributed on the garage top, it will cause great limitations to the use of hangers. During the process of using the hanger to adjust the air duct, the moving range of the hanger is large, and collisions between the hanger or the air duct and other pipes may occur, which will further cause damage to each structure; if the air duct is directly lifted to the installation position by the lift truck and then the operator adjusts the position of the air duct according to the specific installation position, since the air duct is usually heavy, multiple operators may need to cooperate with each other to lift the air duct for adjustment. If the air duct is directly rotated on the top of the lift platform, the bottom of the air duct will rub against the lift platform, thus causing damage to some parts of the bottom of the air duct. For this reason, we propose a lifting device for mechanical and electrical installation construction. Summary of the Invention

[0005] The purpose of the present invention is to provide a lifting device for mechanical and electrical installation construction to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A lifting device for mechanical and electrical installation construction, including a lifting vehicle and a lifting platform installed on the top of the lifting vehicle. A rotating cylinder is rotatably installed inside the lifting platform. A lifting seat is fixedly installed at the top end of the rotating cylinder. Limiting side plates are provided at both ends of the top of the lifting seat. An adjusting mechanism is provided inside the lifting seat. An internal gear is fixedly installed inside the lifting platform. A circular plate one is movably installed inside the rotating cylinder. A circular plate two is rotatably installed at the bottom end of the lifting seat. A plurality of uniformly distributed push rods are fixedly installed on the outside of the circular plate two. A plurality of grooves are opened at the bottom end of the lifting seat. The plurality of push rods are movably installed inside their respective corresponding grooves. A fixing mechanism is provided inside the rotating cylinder. A clamping mechanism is provided at the end of the lifting seat. An unlocking mechanism is provided inside the circular plate two.

[0007] Preferably, the adjusting mechanism includes a bidirectional lead screw and two limiting rods. The bidirectional lead screw is rotatably connected to the lifting seat. The two limiting rods are respectively fixedly installed at both ends inside the lifting seat. The two limiting side plates are respectively threadedly connected to both ends of the bidirectional lead screw. Both ends of the two limiting side plates are respectively slidably sleeved on the outside of their respective corresponding limiting rods.

[0008] Preferably, limiting grooves are opened at both ends inside the rotating cylinder. Limiting strips are fixedly installed on both sides of the circular plate one. The two limiting strips are respectively slidably installed inside the two limiting grooves.

[0009] Preferably, an annular strip is fixedly installed at the bottom of the circular plate two. An annular groove is opened at the top of the rotating cylinder. The annular strip is slidably installed inside the annular groove. The circular plate two is slidably installed inside the rotating cylinder through the mutual cooperation of the annular strip and the annular groove.

[0010] Preferably, the fixing mechanism includes two guide rods and a transmission component. The two guide rods are both fixedly installed inside the rotating cylinder. A connecting plate is jointly slidably sleeved on the outside of the two guide rods. A rack is fixedly installed on the side of the connecting plate away from the guide rods. A first spring is fixedly installed between the bottom of the circular plate one and the inner wall of the rotating cylinder. Four uniformly distributed trapezoidal blocks are fixedly installed at the top of the circular plate one. Four uniformly distributed ejector rods are fixedly installed at the bottom of the circular plate two. The four ejector rods are respectively in contact with the inclined surfaces of the four trapezoidal blocks.

[0011] Preferably, the transmission component includes a flipping rod, two sliders and two chutes. The flipping rod is rotatably installed inside the rotating cylinder. The two sliders are respectively rotatably connected to both ends of the flipping rod. The two chutes are respectively opened on the side of the connecting plate close to the flipping rod and the bottom of the circular plate one. The two sliders are respectively slidably installed inside the two chutes.

[0012] Preferably, the engaging mechanism includes a plurality of T-shaped grooves and a plurality of card slots. The plurality of card slots are formed at one ends of the plurality of push rods away from the second circular plate. A plurality of card blocks are slidably installed inside the plurality of T-shaped grooves. Between the tops of the plurality of card blocks and the inner walls of the respective T-shaped grooves, a second spring is fixedly installed.

[0013] Preferably, the unlocking mechanism includes a plurality of unlocking rods and a rotating shaft. The plurality of unlocking rods are respectively slidably and fittingly installed inside the respective push rods. The rotating shaft is rotatably installed inside the second circular plate. At one ends of the plurality of unlocking rods away from the second circular plate, a top block is fixedly installed. Outside the rotating shaft, a third circular plate is fixedly installed. A torsion spring is sleeved outside the rotating shaft. Two ends of the torsion spring are respectively fixedly connected to the second circular plate and the third circular plate. At the end of the third circular plate, a plurality of uniformly distributed adjusting grooves are formed. At one ends of the plurality of unlocking rods close to the third circular plate, a transmission rod is fixedly installed. The plurality of transmission rods are respectively slidably installed inside the respective adjusting grooves.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By placing the air duct on the top of the lifting seat and releasing the limit on the rotating cylinder, the operator can push the air duct to adjust the angle of the air duct. It is not necessary for multiple staff members to cooperate with each other to lift the air duct for angle adjustment, and there will be no friction between the bottom of the air duct and the lifting seat, improving the installation efficiency of the operator for the air duct.

[0015] Through the cooperation of the plurality of push rods, the engaging mechanism and the unlocking mechanism provided, when the operator toggles any one of the push rods or unlocking rods, corresponding fixing and unlocking effects can be achieved, so that the operator can unlock and fix the rotating cylinder at any position of the lifting platform, bringing convenience to the operator's use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the top structural schematic diagram of the lifting seat of the present invention; Figure 3 is the partial cross-sectional view of the present invention; Figure 4 is the Figure 3 partial enlarged view of A in the present invention; Figure 5 is the Figure 3 partial enlarged view of B in the present invention; Figure 6 is the Figure 3 partial enlarged view of C in the present invention; Figure 7 is the Figure 3 partial enlarged view of E in the present invention; Figure 8 Partial view of the unlocking lever of the present invention; Figure 9 Bottom structure diagram of the second circular plate of the present invention; Figure 10 Top structure diagram of the second circular plate of the present invention; Figure 11 Bottom structure diagram of the second circular plate and the rack of the present invention; Figure 12 For the present invention Figure 11 Enlarged partial view of part D in; Figure 13 Structure diagram of the third circular plate of the present invention.

[0017] In the drawings, the components represented by each reference numeral are listed as follows: 1, lifting vehicle; 2, lifting platform; 3, rotating cylinder; 4, lifting seat; 5, bidirectional lead screw; 6, limiting rod; 7, limiting side plate; 8, internal gear; 9, guide rod; 10, connecting plate; 11, rack; 12, first circular plate; 13, limiting groove; 14, limiting strip; 15, flipping rod; 16, slider; 17, sliding groove; 18, first spring; 19, trapezoidal block; 20, second circular plate; 21, annular strip; 22, annular groove; 23, pushing rod; 24, groove; 25, ejector rod; 26, T-shaped groove; 27, clamping block; 28, second spring; 29, clamping groove; 30, unlocking lever; 31, top block; 32, rotating shaft; 33, third circular plate; 34, torsion spring; 35, adjusting groove; 36, transmission rod. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] The present invention provides a technical solution: As Figures 1 - 13A lifting device for mechanical and electrical installation construction as shown includes a lifting vehicle 1 and a lifting platform 2 installed on the top of the lifting vehicle 1. A rotating cylinder 3 is rotatably installed inside the lifting platform 2. A lifting seat 4 is fixedly installed at the top end of the rotating cylinder 3. Limiting side plates 7 are arranged at both ends of the top of the lifting seat 4. An adjusting mechanism is arranged inside the lifting seat 4. An internal gear 8 is fixedly installed inside the lifting platform 2. A circular plate one 12 is movably installed inside the rotating cylinder 3. A circular plate two 20 is rotatably installed at the bottom end of the lifting seat 4. Multiple uniformly distributed push rods 23 are fixedly installed on the outside of the circular plate two 20. Multiple grooves 24 are opened at the bottom end of the lifting seat 4. Multiple push rods 23 are movably installed inside their respective corresponding grooves 24. A fixing mechanism is arranged inside the rotating cylinder 3. A clamping mechanism is arranged at the end of the lifting seat 4. An unlocking mechanism is arranged inside the circular plate two 20.

[0020] The adjusting mechanism includes a bidirectional lead screw 5 and two limiting rods 6. The bidirectional lead screw 5 is rotatably connected to the lifting seat 4. The two limiting rods 6 are respectively fixedly installed at both ends inside the lifting seat 4. The two limiting side plates 7 are respectively threadedly connected to both ends of the bidirectional lead screw 5. Both ends of the two limiting side plates 7 are respectively slidably sleeved on the outside of their respective corresponding limiting rods 6.

[0021] Limiting grooves 13 are opened at both ends inside the rotating cylinder 3. Limiting strips 14 are fixedly installed on both sides of the circular plate one 12. The two limiting strips 14 are respectively slidably installed inside the two limiting grooves 13.

[0022] An annular strip 21 is fixedly installed at the bottom of the circular plate two 20. An annular groove 22 is opened at the top of the rotating cylinder 3. The annular strip 21 is slidably installed inside the annular groove 22. The circular plate two 20 is slidably installed inside the rotating cylinder 3 through the mutual cooperation of the annular strip 21 and the annular groove 22.

[0023] The fixing mechanism includes two guide rods 9 and a transmission component. The two guide rods 9 are both fixedly installed inside the rotating cylinder 3. A connecting plate 10 is jointly slidably sleeved on the outside of the two guide rods 9. A rack 11 is fixedly installed on the side of the connecting plate 10 away from the guide rod 9. A first spring 18 is fixedly installed between the bottom of the circular plate one 12 and the inner wall of the rotating cylinder 3. Four uniformly distributed trapezoidal blocks 19 are fixedly installed at the top of the circular plate one 12. Four uniformly distributed ejector rods 25 are fixedly installed at the bottom of the circular plate two 20. The four ejector rods 25 are respectively in contact with the inclined surfaces of the four trapezoidal blocks 19.

[0024] The transmission component includes a flipping rod 15, two sliders 16 and two chutes 17. The flipping rod 15 is rotatably installed inside the rotating cylinder 3. The two sliders 16 are respectively rotatably connected to both ends of the flipping rod 15. The two chutes 17 are respectively opened on the side of the connecting plate 10 close to the flipping rod 15 and the bottom of the circular plate one 12. The two sliders 16 are respectively slidably installed inside the two chutes 17.

[0025] The clamping mechanism includes a plurality of T-shaped grooves 26 and a plurality of clamping grooves 29. The plurality of clamping grooves 29 are opened at one ends of a plurality of push rods 23 away from the second circular plate 20. A clamping block 27 is slidably installed inside each of the plurality of T-shaped grooves 26. A second spring 28 is fixedly installed between the top of each of the plurality of clamping blocks 27 and the inner wall of the corresponding T-shaped groove 26.

[0026] The unlocking mechanism includes a plurality of unlocking rods 30 and a rotating shaft 32. The plurality of unlocking rods 30 are respectively slidably and fittingly installed inside their corresponding push rods 23. The rotating shaft 32 is rotatably installed inside the second circular plate 20. A top block 31 is fixedly installed at one end of the top of each of the plurality of unlocking rods 30 away from the second circular plate 20. A third circular plate 33 is fixedly installed on the outer part of the rotating shaft 32. A torsion spring 34 is sleeved on the outer part of the rotating shaft 32. Two ends of the torsion spring 34 are respectively fixedly connected to the second circular plate 20 and the third circular plate 33. A plurality of uniformly distributed adjusting grooves 35 are opened at the end of the third circular plate 33. A transmission rod 36 is fixedly installed at one end of each of the plurality of unlocking rods 30 close to the third circular plate 33. The plurality of transmission rods 36 are respectively slidably installed inside their corresponding adjusting grooves 35.

[0027] Working principle: One end of the bidirectional lead screw 5 is connected to a motor. During use, first, lift the air duct to the top of the lifting seat 4. According to the size of the air duct, adjust the positions of the two limit side plates 7. When adjusting, start the motor connected to the bidirectional lead screw 5 to make it rotate. Under the action of the two limit rods 6, the two limit side plates 7 move relatively inward simultaneously until the two limit side plates 7 are attached to the surface of the air duct to limit both sides of the air duct, avoiding the shaking of the air duct during the lifting process. After the air duct is limited, move the air duct through the lifting vehicle 1, and lift the lifting platform 2 and the air duct to the required installation height.

[0028] When adjusting the angle of the air duct according to the installation position, first press one of the unlocking rods 30 and move it inward. The transmission rod 36 at one end of the unlocking rod 30 slides inside the corresponding adjustment groove 35 and acts on the third circular plate 33. The third circular plate 33 drives the rotating shaft 32 and multiple adjustment grooves 35 to move synchronously, and the torsion spring 34 deforms accordingly. Multiple unlocking rods 30 move inward synchronously. Multiple unlocking rods 30 drive their respective corresponding top blocks 31 to move synchronously. Multiple top blocks 31 act on their respective corresponding clamping blocks 27. Multiple clamping blocks 27 are simultaneously stressed and slide upward inside their respective corresponding T-shaped grooves 26, and squeeze the corresponding second springs 28. Multiple clamping blocks 27 move upward out of their respective corresponding clamping grooves 29. At this time, any one of the push rods 23 can be toggled. When the push rod 23 is pushed to the limit position, release the unlocking rod 30 pressed in the above step. Under the action of the torsion spring 34, the third circular plate 33 resets, and multiple unlocking rods 30 reset synchronously. When the push rod 23 is pushed, the second circular plate 20 connected to it rotates. The second circular plate 20 drives multiple push rods 23 to rotate synchronously. When the second circular plate 20 rotates, the annular strip 21 at its bottom rotates inside the annular groove 22. As the second circular plate 20 rotates, the four top rods 25 at its bottom rotate synchronously. At this time, the second circular plate 20 drives the four top rods 25 to rotate counterclockwise synchronously. The first circular plate 12 drives the four trapezoidal blocks 19 to move upward under the action of the first spring 18. The four trapezoidal blocks 19 move upward along their respective corresponding top rods 25. The inclined surfaces of the four trapezoidal blocks 19 are always in contact with their respective corresponding top rods 25 under the action of the first spring 18. When the first circular plate 12 moves upward, the limiting strips 14 on both sides of it slide upward inside their respective corresponding limiting grooves 13. The two limiting strips 14 and the two limiting grooves 13 enable the first circular plate 12 to only move up and down. At this time, the slider 16 at the end of the turning rod 15 close to the first circular plate 12 slides to the left inside the chute 17 at the bottom of the first circular plate 12. The turning rod 15 is stressed and rotates, and the slider 16 at its bottom slides downward inside the chute 17 on one side of the connecting plate 10, so that the connecting plate 10 slides along the two guide rods 9 to the side close to the turning rod 15, and the rack 11 moves away from the internal gear 8, thereby releasing the limit on the rotating cylinder 3. At this time, the operator can push the air duct, and the air duct drives the lifting seat 4 and the rotating cylinder 3 to rotate, so that the angle of the air duct can be adjusted, and it is not necessary for multiple workers to cooperate with each other to lift the air duct for angle adjustment.

[0029] After adjusting the angle of the air duct to a proper position, push the push rod 23 in the reverse direction. The second circular plate 20 rotates in the reverse direction, and the four ejector rods 25 act on their respective corresponding trapezoidal blocks 19, causing the first circular plate 12 to move downward. The turning rod 15 then pushes the connecting plate 10 and the rack 11 to move closer to the internal gear 8. Under the meshing action of the rack 11 and the internal gear 8, the angles of the rotating cylinder 3, the lifting seat 4, and the air duct can be fixed. Moreover, after pushing the push rod 23 in the reverse direction to the maximum angle, the multiple clamping blocks 27 are respectively clamped into their respective corresponding card slots 29, thereby fixing the positions of the multiple push rods 23 again. The operator can unlock and fix the rotating cylinder 3 from any position of the lifting platform 2, which brings convenience to the operator. Finally, the operator can butt and weld between the air duct flanges. After the welding is completed, reverse the bidirectional lead screw 5 to move the two limiting side plates 7 away from the air duct.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting device for electromechanical installation construction, comprising a lifting vehicle (1) and a lifting platform (2) mounted on the top of the lifting vehicle (1), characterized in that: A rotating drum (3) is rotatably mounted inside the lifting platform (2), a lifting seat (4) is fixedly mounted on the top of the rotating drum (3), both ends of the top of the lifting seat (4) are provided with limit side plates (7), an adjusting mechanism is arranged inside the lifting seat (4), an internal gear (8) is fixedly mounted inside the lifting platform (2), a circular plate 1 (12) is movably mounted inside the rotating drum (3), a circular plate 2 (20) is rotatably mounted on the bottom end of the lifting seat (4), a plurality of evenly distributed pushing rods (23) are fixedly mounted outside the circular plate 2 (20), a plurality of grooves (24) are formed at the bottom end of the lifting seat (4), and a plurality of pushing rods (23) are movably mounted inside the corresponding grooves (24), a fixing mechanism is arranged inside the rotating drum (3), a locking mechanism is arranged at the end of the lifting seat (4), and an unlocking mechanism is arranged inside the circular plate 2 (20).

2. The lifting device for electromechanical installation construction according to claim 1 is characterized in that: The adjustment mechanism comprises a bidirectional screw (5) and two limit rods (6); the bidirectional screw (5) is rotatably connected to the lifting seat (4); the two limit rods (6) are respectively fixedly mounted at two ends inside the lifting seat (4); the two limit side plates (7) are respectively threadedly connected to the two ends of the bidirectional screw (5); and the two ends of the two limit side plates (7) are respectively slidably sleeved on the outside of their corresponding limit rods (6).

3. The lifting device for electromechanical installation construction according to claim 1 is characterized in that: Limiting grooves (13) are provided at both ends of the rotating drum (3), and limiting strips (14) are fixedly installed on both sides of the circular plate (12), and the two limiting strips (14) are slidably installed in the two limiting grooves (13) respectively.

4. The lifting device for electromechanical installation construction according to claim 1 is characterized in that: An annular strip (21) is fixedly mounted on the bottom of the second circular plate (20), an annular groove (22) is provided on the top of the rotating drum (3), the annular strip (21) is slidably mounted inside the annular groove (22), and the second circular plate (20) is slidably mounted inside the rotating drum (3) through the cooperation between the annular strip (21) and the annular groove (22).

5. The lifting device for electromechanical installation construction according to claim 1 is characterized in that: The fixing mechanism comprises two guide rods (9) and a transmission assembly, the two guide rods (9) are fixedly mounted inside the rotating drum (3), a connecting plate (10) is slidably sleeved on the outside of the two guide rods (9), a rack (11) is fixedly mounted on the side of the connecting plate (10) away from the guide rods (9), a spring (18) is fixedly mounted between the bottom of the circular plate (12) and the inner wall of the rotating drum (3), four evenly distributed trapezoidal blocks (19) are fixedly mounted on the top of the circular plate (12), and four evenly distributed push rods (25) are fixedly mounted on the bottom of the circular plate (20), and the four push rods (25) are respectively fitted with the inclined surfaces of the four trapezoidal blocks (19).

6. The lifting device for electromechanical installation construction according to claim 5, characterized in that: The transmission assembly comprises a flip rod (15), two sliders (16) and two slide grooves (17); the flip rod (15) is rotatably mounted inside the rotating drum (3); the two sliders (16) are rotatably connected to the two ends of the flip rod (15); the two slide grooves (17) are respectively arranged on one side of the connecting plate (10) close to the flip rod (15) and on the bottom of the circular plate (12); the two sliders (16) are slidably mounted inside the two slide grooves (17).

7. The lifting device for electromechanical installation construction according to claim 1 is characterized in that: The locking mechanism comprises a plurality of T-slots (26) and a plurality of locking slots (29). The plurality of locking slots (29) are arranged at one end of the plurality of push rods (23) away from the second circular plate (20). A locking block (27) is slidably mounted inside the plurality of T-slots (26). A second spring (28) is fixedly mounted between the top of the plurality of locking blocks (27) and the inner wall of the corresponding T-slot (26).

8. The lifting device for electromechanical installation construction according to claim 1 is characterized in that: The unlocking mechanism comprises a plurality of unlocking rods (30) and a rotating shaft (32). The plurality of unlocking rods (30) are respectively slidably mounted inside the corresponding push rods (23). The rotating shaft (32) is rotatably mounted inside the second circular plate (20). A top block (31) is fixedly mounted on the top of the plurality of unlocking rods (30) at one end away from the second circular plate (20). The third circular plate (33) is fixedly mounted on the outside of the rotating shaft (32). A torsion spring (34) is sleeved on the outside of the rotating shaft (32). The two ends of the torsion spring (34) are respectively fixedly connected to the second circular plate (20) and the third circular plate (33). The end of the third circular plate (33) is provided with a plurality of evenly distributed adjustment grooves (35). The ends of the plurality of unlocking rods (30) close to the third circular plate (33) are fixedly mounted with transmission rods (36). The plurality of transmission rods (36) are respectively slidably mounted inside the corresponding adjustment grooves (35).

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