A lifting device

Abstract

The present application relates to a lifting device, belonging to the field of lifting equipment technology. It includes a vehicle body and a "7"-shaped lifting part. The vehicle body is provided with a connecting seat. The bottom of the vertical section of the lifting part is detachably mounted on the vehicle body via the connecting seat. The connecting seat is also used to adjust the inclination angle of the lifting part. The top horizontal section of the lifting part extends away from the vehicle body. The end of the lifting part is provided with a first fixed pulley, and a second fixed pulley is provided at the corner of the lifting part. The lifting part is also provided with a winch. The rope of the winch is wound around the second fixed pulley and the first fixed pulley, and a hook is provided at the end of the rope. The present application has the effect of improving construction efficiency.

Description

Technical Field

[0001] The present application relates to the field of lifting equipment technology, and in particular to a lifting device. Background Art

[0002] As a key structure for road construction noise control, sound barriers are primarily used for noise reduction during bridge, highway, urban elevated road, subway construction, and other noisy environments. When constructing closed rail transit sound barriers, the steel support beams are typically installed first. A steel crossbeam is then installed between the two supports and secured, completing the sound barrier framework. Finally, sound-absorbing and insulation materials are laid on top of the framework.

[0003] In existing construction, a crane is usually used to hoist and install the beams. However, the crane has a limited working range and needs to be moved multiple times during operation. At the same time, each time the crane moves, it needs to place pads and adjust the legs, which makes the beam hoisting time long and the construction efficiency low. Summary of the Invention

[0004] In order to improve construction efficiency, the present application provides a lifting device.

[0005] The lifting device provided in this application adopts the following technical solution:

[0006] A lifting device includes a vehicle body and a "7"-shaped lifting part, wherein a connecting seat is provided on the vehicle body, and the bottom of the vertical section of the lifting part can be detachably mounted on the vehicle body through the connecting seat. At the same time, the connecting seat is used to adjust the inclination angle of the lifting part. The top horizontal section of the lifting part extends away from the vehicle body, a first fixed pulley is provided at the end of the lifting part, and a second fixed pulley is provided at the corner of the lifting part. A winch is also provided on the lifting part, and the rope body of the winch is passed through the second fixed pulley and the first fixed pulley, and a hook is provided at the end of the rope body.

[0007] By adopting the above technical solution, the lifting part is installed on the vehicle body, and the winch drives the crossbeam to move, so as to achieve the effect of lifting the crossbeam, so that the vehicle body can be moved to the lifting position during lifting, and the inclination angle of the lifting part is adjusted according to the quality of the hoisted crossbeam, so that the center of gravity of the hoisted crossbeam is located above the vehicle body, which avoids the overturning of the vehicle body to a certain extent, thereby improving the problem of adjusting the outriggers and placing pads when the crane is lifting, thereby improving construction efficiency.

[0008] Optionally, the vehicle body includes a forklift, and the connecting seat is arranged on the fork of the forklift.

[0009] By adopting the above technical solution, the vehicle body adopts a common forklift, which is easy to move, and the fork of the forklift can adjust the height of the lifting part.

[0010] Optionally, the hoisting part is a steel pipe frame, and a plurality of reinforcement rods are connected inside the hoisting part.

[0011] By adopting the above technical solution, the steel pipe frame makes the overall mass of the hoisting part lighter, and the reinforcement rod is used to ensure the overall frame stability of the hoisting part.

[0012] Optionally, the connecting seat includes a accommodating basket, a clamping piece and a cylinder, the accommodating basket is a hollow rectangular frame with an opening at the upper end, the accommodating basket is hingedly set on the fork of the forklift, the cylinder body of the cylinder is hingedly set on the fork of the forklift, the end of the piston rod of the cylinder is hinged to the accommodating basket, and the clamping piece is set on the accommodating basket and is used to fix the lifting part inserted therein.

[0013] By adopting the above technical solution, during construction, the lower end of the lifting part is inserted into the receiving basket, the clamping part fixes the lifting part, and the inclination angle of the receiving basket is adjusted by the cylinder, thereby achieving the effect of facilitating the adjustment of the inclination angle of the receiving basket.

[0014] Optionally, the clamping member includes a clamping block, a spring and a connecting rod. A clamping groove is provided on the inner wall of the receiving basket. The clamping block is slidably arranged in the clamping groove. The side of the clamping block located in the receiving basket is a downward inclined surface. The spring is provided in the clamping groove and connected to the clamping block. The spring makes the lower end of the clamping block always have a tendency to move toward the receiving basket. A pull rod is connected to the clamping block, and one end of the pull rod extends through the receiving basket to the outside of the receiving basket. A receiving groove is provided on the lifting part opposite to the clamping block.

[0015] By adopting the above technical solution, when the lifting part is installed in the receiving basket, the lifting part pushes the clamping block to the clamping groove. When the receiving groove and the clamping block are opposite to each other, the clamping block pops out into the receiving groove under the action of the spring, thereby clamping the lifting part, thereby achieving the effect of facilitating the fixing of the lifting part in the receiving basket.

[0016] Optionally, a support rod is obliquely arranged between the horizontal section and the vertical section of the hoisting part.

[0017] By adopting the above technical solution, the support rod plays a role in reinforcing and supporting the lifting part.

[0018] Optionally, the hoisting part is also provided with an adjusting member for adjusting the angle of the hoisted beam, the adjusting member includes two tension rods, an adjusting rope, an electromagnet, an adjusting member and a driving member, the two tension rods are respectively hinged on both sides of the support rod, the driving member is connected to both tension rods and is used to drive the two tension rods to move away from or approach each other, the two tension rods are provided with an adjusting rope, the electromagnet is provided at the end of the adjusting rope, the adjusting member is connected to the adjusting rope and is used to adjust the length of the adjusting rope extending outside the tension rod.

[0019] By adopting the above technical solution, when hoisting the beam, the two tension rods are driven away from each other, and the electromagnets at the ends of the two tension rods are started to connect with the two ends of the beam. By adjusting the length of the two adjustment ropes, the angle of the beam is adjusted during the hoisting process of the beam to avoid rotation of the beam during hoisting.

[0020] Optionally, the tension rod is hollow, a telescopic rod is slidably provided inside the tension rod, a telescopic cylinder connected to the telescopic rod is provided inside the tension rod, a rope ring is provided at the end of the telescopic rod, and the adjustment rope passes through the rope ring.

[0021] By adopting the above technical solution, the telescopic rod allows the end of the telescopic rod to move to fit the beam when the hoisting begins, thereby adsorbing the electromagnet on the beam.

[0022] Optionally, the adjusting member includes a winding wheel and a motor, the winding wheel is provided on both tension rods, the motor is coaxially provided on the winding wheel, and the adjusting rope is wound around the corresponding winding wheel.

[0023] By adopting the above technical solution, the motor drives the winding wheel to rotate, thereby winding or releasing the adjusting rope, thereby achieving the effect of adjusting the length of the adjusting rope located outside the tensioning rod.

[0024] Optionally, the driving member includes a double-headed motor, a lead screw and a slider, the double-headed motor is arranged on the support rod, and sliding holes are provided on the two tension rods. Cylindrical clamping columns are provided on both sides of the slider, and sliding grooves are provided on the two side walls of the sliding hole. The slider is slidably arranged in the sliding hole, and the clamping column is slidably arranged in the sliding groove. The lead screws are coaxially arranged on the two output shafts of the double-headed motor, and the two lead screws are threaded through the two sliders respectively.

[0025] By adopting the above technical solution, the double-headed motor is started, and the double-headed motor drives the two lead screws to rotate, thereby driving the two tension rods to rotate away from or towards each other. At the same time, as the tension rod rotates, the slider slides along the sliding hole, and the angle of the slider changes accordingly, thereby achieving the effect of facilitating the rotation of the two tension rods.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. Install the hoisting unit on the vehicle body, and use the winch to drive the crossbeam to move, so as to achieve the effect of hoisting the crossbeam. When hoisting, just move the vehicle body to the hoisting position. And adjust the inclination angle of the hoisting unit according to the quality of the hoisted crossbeam so that the center of gravity of the hoisted crossbeam is located above the vehicle body, which can prevent the vehicle body from overturning to a certain extent. This solves the problem of adjusting the outriggers and placing skids when the crane is hoisting, thereby improving construction efficiency.

[0028] 2. During construction, insert the lower end of the hoisting part into the receiving basket, fix the hoisting part with the clamping parts, and adjust the tilt angle of the receiving basket through the cylinder, so as to achieve the effect of facilitating the adjustment of the tilt angle of the receiving basket. Then, the tilt angle of the hoisting part can be adjusted according to the mass of the hoisting beam, so that the center of gravity of the hoisting beam is located above the vehicle body, preventing the vehicle body from overturning;

[0029] 3. When hoisting the beam, drive the two tension rods away from each other, and start the electromagnets at the ends of the two tension rods to connect with the two ends of the beam. By adjusting the length of the two adjustment ropes, the angle of the beam can be adjusted during the hoisting process to prevent the beam from rotating during hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of an embodiment of the present application.

[0031] Figure 2 It is a schematic diagram for illustrating the structure of the connecting seat in the embodiment of the present application.

[0032] Figure 3 It is a schematic diagram for illustrating the structure of the lifting part in the embodiment of the present application.

[0033] Figure 4 It is a schematic diagram for illustrating the structure of the driving member in the embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Vehicle body; 2. Hoisting part; 21. First fixed pulley; 22. Second fixed pulley; 23. Winch; 24. Hook; 25. Reinforcement rod; 26. Accommodating groove; 27. Support rod; 3. Connecting seat; 41. Accommodating basket; 411. Snap-fit groove; 42. Cylinder; 43. Snap-fit block; 44. Spring; 45. Connecting rod; 51. Tension rod; 52. Adjusting rope; 53. Electromagnet; 54. Telescopic rod; 541. Slide hole; 542. Slide groove; 55. Telescopic cylinder; 56. Rope ring; 61. Reel; 62. Motor; 71. Double-headed motor; 72. Lead screw; 73. Slider; 74. Snap-fit column. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The present application discloses a lifting device, referring to Figure 1A lifting device includes a vehicle body 1 and a "7"-shaped lifting portion 2. The vehicle body 1 is a forklift, and a connecting base 3 is mounted on the forklift's cargo forks. The lifting portion 2 is divided into a vertical section and a horizontal section. The vertical section of the lifting portion 2 is a rectangular steel pipe frame with multiple reinforcement rods 25 mounted horizontally between the steel pipe frames. The horizontal section of the lifting portion 2 is a triangular steel pipe frame. The bottom of the vertical section of the lifting portion 2 is detachably mounted on the forklift via the connecting base 3. The connecting base 3 is also used to adjust the inclination angle of the lifting portion 2. The top horizontal section of the lifting portion 2 extends away from the vehicle body 1. A first fixed pulley 21 is rotatably mounted at the end of the horizontal section of the hoisting part 2, a second fixed pulley 22 is rotatably mounted at the corner of the horizontal section and the vertical section of the hoisting part 2, and a winch 23 is also mounted on the vertical section of the hoisting part 2. The rope of the winch 23 is passed through the second fixed pulley 22 and the first fixed pulley 21, and a hook 24 is mounted on the end of the rope extending outside the first fixed pulley 21.

[0038] When hoisting the beams of the sound barrier, the hoisting part 2 is mounted on a forklift, and the hook 24 is lowered to the ground via the winch 23. After the beam is hung on the hook 24, the winch 23 is used to drive the beam to the installation position, thereby achieving the effect of hoisting the beam. The forklift body 1 is relatively small, so when hoisting, it is sufficient to move the forklift to the hoisting position. The tilt angle of the hoisting part 2 is adjusted according to the weight of the hoisted beam so that the center of gravity of the hoisted beam is located above the vehicle body 1, thereby preventing the vehicle body 1 from overturning to a certain extent. This improves the problem of adjusting the outriggers and placing skids when hoisting the beams via a crane, thereby improving construction efficiency.

[0039] Reference Figure 2 The connecting base 3 includes a receiving basket 41, a clamping member, and a cylinder 42. The receiving basket 41 is a hollow rectangular frame with an open top. The bottom of the receiving basket 41 is hingedly mounted on the forklift's forks. The cylinder body of the cylinder 42 is hingedly mounted on the forklift's forks. The end of the piston rod of the cylinder 42 extends obliquely upward toward the receiving basket 41 and is hingedly connected to the receiving basket 41. The clamping member is mounted on the receiving basket 41 and is used to secure the lower end of the lifting unit 2 inserted therein.

[0040] Reference Figure 2The clamping member includes a clamping block 43, a spring 44, and a connecting rod 45. A clamping groove 411 is provided on the inner wall of one side of the receiving basket 41. The clamping block 43 is slidably mounted within the clamping groove 411. The clamping block 43 is located on an inclined surface on one side of the receiving basket 41, and the lower end of the clamping block 43 is closer to the inner wall on the other side of the receiving basket 41. The spring 44 is located within the clamping groove 411. One end of the spring 44 is connected to the inner wall of the clamping groove 411, and the other end is connected to the clamping block 43. The spring 44 ensures that the lower end of the clamping block 43 always has a tendency to move toward the inside of the receiving basket 41. A pull rod is fixedly connected to the end of the clamping block 43 that is away from the inclined surface. The other end of the pull rod passes through the receiving basket 41 and extends outside the receiving basket 41. A receiving groove 26 is provided on the hanging portion 2 opposite the clamping block 43.

[0041] The cylinder 42 adjusts the tilt angle of the receiving basket 41, thereby adjusting the tilt angle of the lifting part 2. When the lifting part 2 is inserted into the receiving basket 41, the lifting part 2 contacts the clamping block 43 and pushes the clamping block 43 into the clamping groove 411. When the lifting part 2 is inserted downward until it is opposite the receiving groove 26 and the clamping block 43, the clamping block 43 is ejected into the receiving groove 26 by the action of the spring 44, clamping the lifting part 2 in the receiving basket 41. When the lifting part 2 needs to be removed, the pull rod is pulled outward to pull the clamping block 43 into the clamping groove 411, so that the clamping block 43 is disengaged from the lifting part 2, and the lifting part 2 can be removed from the receiving basket 41 normally.

[0042] Reference Figure 1 and Figure 3 A support rod 27 is fixedly connected between the horizontal section and the vertical section of the hoisting part 2. The support rod 27 makes the hoisting part 2 triangular as a whole, thereby improving the overall stability of the hoisting part 2.

[0043] Reference Figure 3 and Figure 4 The hoisting portion 2 is also equipped with an adjustment member for adjusting the angle of the hoisted beam. The adjustment member includes two tension rods 51, an adjustment rope 52, an electromagnet 53, an adjustment member, and a driver. The two tension rods 51 are hingedly mounted on either side of the support rod 27. The driver is connected to both tension rods 51 and is used to drive the two tension rods 51 away from or toward each other. Both tension rods 51 are hollow and have open ends. A telescopic rod 54 is installed within each tension rod 51. A telescopic cylinder 55 is installed within each tension rod 51. The cylinder body of the telescopic cylinder 55 is connected to the tension rod 51, and the piston rod end of the telescopic cylinder 55 is connected to the telescopic rod 54. Rope rings 56 are fixedly mounted at the ends of the two telescopic rods 54. The adjustment ropes 52 pass through the corresponding rope rings 56. Electromagnets 53 are installed at the ends of both adjustment ropes 52. The adjusting member is mounted on the tension rod 51 and connected to the adjusting rope 52 . The adjusting member is used to adjust the length of the adjusting rope 52 extending outside the tension rod 51 .

[0044] Reference Figure 3 and Figure 4 The adjusting part includes a winding wheel 61 and a motor 62. The winding wheel 61 is installed on both tension rods 51. Two motors 62 are also installed. The two motors 62 correspond to the two winding wheels 61, and the motor 62 and the winding wheel 61 are fixedly connected coaxially. The two adjusting ropes 52 are respectively wound around the corresponding winding wheels 61.

[0045] Reference Figure 4 The drive components include a double-headed motor 71, a lead screw 72, and a slider 73. The double-headed motor 71 is fixedly mounted on the support rod 27. The two output shafts of the double-headed motor 71 correspond to the two tension rods 51. Slide holes 541 are provided on both tension rods 51 at locations directly opposite the double-headed motor 71, along the length of the tension rods 51. Cylindrical clamping posts 74 are connected to both sides of the slider 73. Slide grooves 542 are provided on the side walls of the slide hole 541. The slider 73 slides within the slide hole 541, and the clamping posts 74 on both sides of the slider 73 respectively fit into the slide grooves 542 on the side walls of the slide hole 541. The lead screws 72 are coaxially fixedly connected to the two output shafts of the double-headed motor 71. The two lead screws 72 are threaded through the two sliders 73.

[0046] When hoisting the beam, the double-headed motor 71 is activated, driving the two lead screws 72 to rotate. The two sliders 73 then move away from each other, moving along the slide holes 541 and changing their angles, causing the two tension rods 51 to rotate away from each other. The telescopic cylinder 55 drives the telescopic rod 54 to move, so that the ends of the two tension rods 51 are on the same horizontal plane as the ends of the support rods 27. The motor 62 then drives the reel 61 to pay out the line. When the hook 24 is connected to the beam, the electromagnet 53 is activated, attracting it to the beam. During the process of lifting the beam, the two motors 62 are simultaneously activated, keeping the two adjustment ropes 52 in a straight position. The two adjustment ropes 52 then secure the beam during lifting, preventing the beam from deflecting during single-point lifting and affecting the lifting process.

[0047] The implementation principle of a lifting device in an embodiment of the present application is as follows: the lifting part 2 is installed on a forklift, the hook 24 is lowered to the ground by a winch 23, and after the beam is hung on the hook 24, the winch 23 is used to drive the beam to be lifted to the installation position, thereby achieving the effect of lifting the beam. The forklift body 1 is relatively small, and when lifting, the forklift can be moved to the lifting position, and the inclination angle of the lifting part 2 is adjusted according to the volume and mass of the hoisted beam, so that the center of gravity of the hoisted beam is located above the vehicle body 1, thereby preventing the vehicle body 1 from overturning to a certain extent. This improves the problem of adjusting the legs and placing pads when lifting the beam by a crane, thereby improving construction efficiency.

[0048] Finally, it should be noted that in the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A lifting device, characterized in that: The invention comprises a vehicle body (1) and a "7"-shaped hoisting part (2), wherein a connecting seat (3) is provided on the vehicle body (1), and the bottom of the vertical section of the hoisting part (2) is detachably mounted on the vehicle body (1) through the connecting seat (3), and the connecting seat (3) is used to adjust the tilt angle of the hoisting part (2), and the top horizontal section of the hoisting part (2) extends away from the vehicle body (1), and a first fixed pulley (21) is provided at the end of the hoisting part (2), and a second fixed pulley (22) is provided at the corner of the hoisting part (2), and a winch (23) is also provided on the hoisting part (2), and a rope of the winch (23) is wound around the second fixed pulley (22) and the first fixed pulley (21), and a hook (24) is provided at the end of the rope; The hoisting portion (2) is also provided with an adjusting member for adjusting the angle of the hoisted beam, the adjusting member comprising two tension rods (51), an adjusting rope (52), an electromagnet (53), an adjusting member and a driving member, the two tension rods (51) are respectively hingedly arranged on both sides of the support rod (27), the driving member is connected to both tension rods (51) and is used to drive the two tension rods (51) to move away from or towards each other, the two tension rods (51) are both provided with an adjusting rope (52), the electromagnet (53) is provided at the end of the adjusting rope (52), the adjusting member is connected to the adjusting rope (52) and is used to adjust the length of the adjusting rope (52) extending outside the tension rod (51); The electromagnets (53) at the ends of the two tension rods (51) are activated and connected to the two ends of the beam, and the angle of the beam is adjusted during the beam hoisting process by adjusting the length of the two adjustment ropes (52); The tension rod (51) is hollow, and a telescopic rod (54) is slidably arranged in the tension rod (51). A telescopic cylinder (55) connected to the telescopic rod (54) is arranged in the tension rod (51). A rope ring (56) is arranged at the end of the telescopic rod (54), and the adjustment rope (52) passes through the rope ring (56). The telescopic rod (54) is driven to move by the telescopic cylinder (55), so that the ends of the two tension rods (51) and the end of the support rod (27) are on the same horizontal plane. The adjusting member comprises a winding wheel (61) and a motor (62), wherein the winding wheel (61) is provided on both tension rods (51), the motor (62) is coaxially provided on the winding wheel (61), and the adjusting rope (52) is wound around the corresponding winding wheel (61); The driving member includes a double-headed motor (71), a lead screw (72) and a slider (73). The double-headed motor (71) is arranged on the support rod (27). The two tension rods (51) are each provided with a sliding hole (541). Cylindrical clamping columns (74) are provided on both sides of the slider (73). Slide grooves (542) are provided on both side walls of the slide hole (541). The slider (73) is slidably arranged in the slide hole (541). At the same time, the clamping column (74) is slidably arranged in the slide groove (542). The lead screw (72) is coaxially arranged on the two output shafts of the double-headed motor (71). The two lead screws (72) are respectively threaded on the two sliders (73).

2. A lifting device according to claim 1, characterized in that: The vehicle body (1) comprises a forklift, and the connecting seat (3) is arranged on the fork of the forklift.

3. A lifting device according to claim 1, characterized in that: The hoisting part (2) is a steel pipe frame, and a plurality of reinforcing rods (25) are connected and arranged inside the hoisting part (2).

4. A lifting device according to claim 2, characterized in that: The connecting seat (3) comprises a accommodating basket (41), a clamping piece and a cylinder (42); the accommodating basket (41) is a hollow rectangular frame with an upper end opening; the accommodating basket (41) is hingedly arranged on a forklift fork; the cylinder body of the cylinder (42) is hingedly arranged on the forklift fork; the piston rod end of the cylinder (42) is hingedly connected to the accommodating basket (41); the clamping piece is arranged on the accommodating basket (41) and is used to fix the hoisting part (2) inserted therein.

5. A lifting device according to claim 4, characterized in that: The clamping member includes a clamping block (43), a spring (44) and a connecting rod (45). A clamping groove (411) is provided on the inner wall of the receiving basket (41). The clamping block (43) is slidably arranged in the clamping groove (411). The side of the clamping block (43) located in the receiving basket (41) is an inclined surface inclined downward. The spring (44) is provided in the clamping groove (411) and is connected to the clamping block (43). The spring (44) makes the lower end of the clamping block (43) always have a tendency to move toward the receiving basket (41). A pull rod is connected to the clamping block (43). One end of the pull rod passes through the receiving basket (41) and extends to the outside of the receiving basket (41). A receiving groove (26) is provided on the hanging part (2) opposite to the clamping block (43).

6. A lifting device according to claim 1, characterized in that: A support rod (27) is obliquely arranged between the horizontal section and the vertical section of the hoisting portion (2).

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