Prefabricated part hoisting device for constructional engineering
By designing a lifting prefabricated part device for construction projects, the problems of low efficiency and unstableness of traditional lifting devices when lifting large beam prefabricated parts are solved, efficient and stable lifting operations are achieved, and workers' labor intensity and Construction safety hazards.
Patent Information
- Application Number
- CN202421018802.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Traditional lifting devices are inefficient and unstable when lifting prefabricated parts of large beams, with high labor intensity and prone to shaking in areas with high wind speeds, posing safety hazards.
A device for lifting prefabricated parts for construction projects is designed. The top of the hanging beam is equipped with hanging lugs, rectangular grooves and sliding grooves at both ends. The base slides in the rectangular grooves, and the top surface is equipped with circular grooves and shaft grooves. , the operating parts include driving gears, ear seats, lever and rotary grippers, and the lifting is achieved through these components.
The device facilitates efficient hooking of large beam prefabricated parts, significantly improves lifting efficiency and stability, reduces workers' labor intensity, and reduces the risk of shaking in areas with high wind speeds, and improves construction safety.
Smart Images
Figure CN222475865U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering lifting equipment, in particular to a device for lifting prefabricated parts for construction engineering. Background Art
[0002] Prefabricated parts refer to various components manufactured by preforming methods. Compared with on-site manufacturing, prefabricated parts can speed up the project progress and improve precision. Therefore, prefabricated parts are widely used in construction projects. After these prefabricated parts are manufactured in the prefabrication plant, they need to be transported to the site for use. Since prefabricated components are usually very heavy, they generally need to be loaded and transported by lifting devices.
[0003] Traditionally, when lifting and loading large prefabricated parts such as bridges, wire ropes are often used to hook the parts. However, due to the thickness and weight of the wire ropes, it is quite difficult for workers to hook them. It requires the cooperation of multiple people, which is labor-intensive and time-consuming. It is also difficult to install and remove the wire ropes, which affects construction efficiency. When lifting prefabricated parts in areas with high wind speeds, the wire ropes are prone to shaking during the lifting process, which poses a great safety hazard to workers on site. Utility Model Content
[0004] The utility model aims to provide a device for lifting prefabricated parts for construction engineering, which is used to solve the problems of low efficiency and unstable lifting when the current lifting device is used to lift large beam prefabricated parts.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for lifting prefabricated parts for construction engineering, wherein a lifting ear for connecting a lifting hook head is provided in the middle of the top surface of the lifting beam, and rectangular grooves are respectively provided at both ends of the top surface of the lifting beam, and the base is respectively arranged in the rectangular grooves, and three circular grooves connected to each other are provided in the middle and front and rear sides of the top surface of the base, the operating part includes a driving gear rotatably installed in the circular groove in the middle, an ear seat fixed to the top surface of the driving gear, and a lever rotatably connected to the ear seat at one end, the rotating gripper includes a driven gear rotatably installed in the two circular grooves on the front and rear sides and meshing with the driving gear, a suspension rod whose top end is fixed to the bottom end of the central axis of the driven gear and passes through the base and the lifting beam, and a clamping plate fixed at one end to the bottom end of the suspension rod.
[0006] Preferably, a short shaft is fixed at the center of the bottom surface of the driven gear, the top end of the suspension rod is fixed at the center of the bottom surface of the short shaft, the bottom surfaces of the two circular grooves on the front and rear sides are respectively provided with axial holes matching the rotating sleeve of the short shaft, and the bottom surfaces of the rectangular grooves are respectively provided with sliding grooves corresponding to the positions of the suspension rods.
[0007] Preferably, a first positioning slot and a second positioning slot are fixed to the middle of the outer side and the middle of the rear side of the top surface of the base respectively, and the lever is matched with the first positioning slot and the second positioning slot in the vertical direction.
[0008] Preferably, an axis groove which is rotatably sleeved and matched with the bottom end of the central shaft of the driving gear is provided at the center of the bottom surface of the circular groove in the middle portion.
[0009] Preferably, the base is respectively slidably mounted in the rectangular groove along the axial direction of the suspension beam, the slide grooves respectively extend along the axial direction of the suspension beam, and also include a driving mechanism for driving the base to slide along the rectangular groove.
[0010] Preferably, the driving mechanism includes a screw rod whose two ends are rotatably mounted in the middle of the two side walls of the rectangular groove and whose outer end passes through the end face of the suspension beam, and a crank fixedly mounted on the outer end of the screw rod, and the bottom of the side wall of the base is fixedly mounted with a threaded sleeve that matches the threaded sleeve of the screw rod.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model relates to a device for lifting prefabricated parts for construction engineering, which is convenient for efficiently hooking large beam prefabricated parts, so as to greatly improve the lifting efficiency; since the prefabricated parts are rigidly hooked when being lifted, the stability of the lifting is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0014] Figure 2 It is a three-dimensional structural schematic diagram of the base of the utility model;
[0015] Figure 3 It is a structural schematic diagram of the operating part of the utility model;
[0016] Figure 4 It is a three-dimensional structural schematic diagram of the rotary gripper of the utility model.
[0017] In the figure: 1- hanging beam; 1.1- hanging ear; 1.2- rectangular groove; 1.3- slide groove;
[0018] 2-base; 2.1-circular groove; 2.2-axial groove; 2.3-axial hole; 2.4-positioning slot 1; 2.5-positioning slot 2; 2.6-threaded sleeve;
[0019] 3-operating part; 3.1-driving gear; 3.2-ear seat; 3.3-lever;
[0020] 4-rotating gripper; 4.1-short shaft; 4.2-driven gear; 4.3-suspender rod; 4.4-cage;
[0021] 5-screw; 5.1-crank handle. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-4 The utility model provides a technical solution: a device for lifting prefabricated parts for construction engineering, a lifting ear 1.1 for connecting a lifting hook head is provided in the middle of the top surface of the hanging beam 1, rectangular grooves 1.2 are provided at both ends of the top surface of the hanging beam 1, and sliding grooves 1.3 extending along the axial direction of the hanging beam 1 are provided on the front and rear sides of the middle of the bottom surface of the rectangular groove 1.2.
[0024] The base 2 is slidably mounted in the rectangular groove 1.2. Three circular grooves 2.1 are connected to each other in the middle of the top surface and the front and rear sides of the base 2. Axle holes 2.3 are respectively arranged in the middle of the bottom surfaces of the two circular grooves 2.1 on the front and rear sides. An axle groove 2.2 is arranged at the center of the bottom surface of the central circular groove 2.1.
[0025] The operating member 3 comprises a driving gear 3.1, an ear seat 3.2 fixed to the top surface of the driving gear 3.1 and a lever 3.3 with one end rotatably connected to the ear seat 3.2. The bottom end of the central axis of the driving gear 3.1 is rotatably sleeved in the shaft groove 2.2.
[0026] The rotary gripper 4 comprises a driven gear 4.2, a short shaft 4.1 fixed to the center of the bottom surface of the driven gear 4.2, a suspension rod 4.3 whose top end is fixed to the center of the bottom surface of the short shaft 4.1 and slidably mounted in the slide groove 1.3, and a clamping plate 4.4 whose one end is fixed to the bottom end of the suspension rod 4.3.
[0027] The driving gear 3.1 is meshed with the driven gears 4.2 at the front and rear sides thereof.
[0028] The driving mechanism includes a screw rod 5 whose two ends are rotatably mounted in the middle of the two side walls of the rectangular groove 1.2 and whose outer ends pass through the end surface of the suspension beam 1, and a crank 5.1 fixedly mounted on the outer end of the screw rod 5. The bottom of the side wall of the base 2 is fixedly mounted with a threaded sleeve 2.6 that matches the threaded sleeve of the screw rod 5.
[0029] The hook of the lifting equipment is connected to the lifting ear 1.1. When lifting a large beam prefabricated part, place the two lifting beams 1 near the two ends of the prefabricated part, and rotate the screw rod 5 by the crank 5.1 to adjust the distance between the bases 2 on both sides to match the width of the beam with lifting. Lift the outer end of the lever 3.3 to disengage it from the positioning slot 1 2.4, so that the driving gear 3.1 can be rotated 90° by the lever 3.3. The driving gear 3.1 engages the driven gear 4.2, so that the rotating gripper 4 rotates as a whole, so that the clamping plate 4.4 rotates to the lower side of the wings on both sides of the beam body. At this time, the lever 3.3 is aligned with the positioning slot 2.5, and the lever 3.3 is dropped so that the lever 3.3 is stuck in the positioning slot 2.5, so that the operating member 3 and the rotating gripper 4 are locked.
[0030] According to the above operation, the two groups of lifting beams 1 are rooted to the two ends of the beam body prefabricated parts respectively, and then the beam body prefabricated parts can be hoisted by the hoisting equipment.
[0031] In order to facilitate the positioning of the lever 3.3, a positioning slot 1 2.4 and a positioning slot 2 2.5 are respectively fixed to the middle of the outer side of the top surface and the middle of the rear side of the base 2, and the lever 3.3 is vertically engaged with the positioning slot 1 2.4 and the positioning slot 2 2.5.
[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for lifting prefabricated parts for construction engineering, characterized in that: include: A hanging beam (1), wherein a hanging ear (1.1) for connecting a lifting hook head is provided in the middle of the top surface of the hanging beam (1), and rectangular grooves (1.2) are provided at both ends of the top surface of the hanging beam (1); A base (2), the base (2) being arranged in the rectangular grooves (1.2) respectively, and three circular grooves (2.1) communicating with each other are arranged in the middle part and front and rear sides of the top surface of the base (2); An operating member (3), the operating member (3) comprising a driving gear (3.1) rotatably mounted in the circular groove (2.1) in the middle, an ear seat (3.2) fixed to the top surface of the driving gear (3.1), and a lever (3.3) with one end rotatably connected to the ear seat (3.2); A rotating gripper (4), the rotating gripper (4) comprising a driven gear (4.2) rotatably mounted in the two circular grooves (2.1) at the front and rear sides and meshing with the driving gear (3.1), a suspension rod (4.3) having a top end fixed to the bottom end of the central axis of the driven gear (4.2) and penetrating the base (2) and the suspension beam (1), and a clamping plate (4.4) having one end fixed to the bottom end of the suspension rod (4.3).
2. A device for lifting prefabricated parts for construction engineering according to claim 1, characterized in that: A short shaft (4.1) is fixed at the center of the bottom surface of the driven gear (4.2); the top end of the suspension rod (4.3) is fixed at the center of the bottom surface of the short shaft (4.1); the bottom surfaces of the two circular grooves (2.1) on the front and rear sides are respectively provided with shaft holes (2.3) that are rotatably sleeved and matched with the short shaft (4.1); and the bottom surface of the rectangular groove (1.2) is respectively provided with sliding grooves (1.3) at positions corresponding to the suspension rod (4.3).
3. The device for lifting prefabricated parts for construction engineering according to claim 1, characterized in that: A first positioning slot (2.4) and a second positioning slot (2.5) are respectively fixed to the middle of the outer side of the top surface and the middle of the rear side of the base (2), and the lever (3.3) is matched with the first positioning slot (2.4) and the second positioning slot (2.5) in a vertical snap connection.
4. The device for lifting prefabricated parts for construction engineering according to claim 1, characterized in that: A shaft groove (2.2) is provided at the center of the bottom surface of the circular groove (2.1) in the middle portion and is rotatably sleeved and matched with the bottom end of the central shaft of the driving gear (3.1).
5. The device for lifting prefabricated parts for construction engineering according to claim 2, characterized in that: The base (2) is respectively slidably mounted in the rectangular groove (1.2) along the axial direction of the suspension beam (1), and the slide groove (1.3) extends along the axial direction of the suspension beam (1), and also includes a driving mechanism for driving the base (2) to slide along the rectangular groove (1.2).
6. A device for lifting prefabricated parts for construction engineering according to claim 5, characterized in that: The driving mechanism comprises a screw rod (5) whose two ends are rotatably mounted in the middle of the two side walls of the rectangular groove (1.2) and whose outer end passes through the end surface of the suspension beam (1), and a crank (5.1) fixedly mounted on the outer end of the screw rod (5); and a threaded sleeve (2.6) matching the threaded sleeve of the screw rod (5) is fixedly mounted on the bottom of the side wall of the base (2).