Lifting hook for mounting precast concrete shaft
By designing a hook for prefabricated concrete wellbore installation, using limit, friction reduction and guidance devices, the problem of unstable wellbore lifting is solved, stable vertical lifting and mobility of the wellbore is achieved, and the installation and disassembly of the wellbore is simplified.
Patent Information
- Application Number
- CN202323078004.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-15
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-11-15
AI Technical Summary
The existing concrete wellbore is unstable during the lifting process and is difficult to maintain a vertical posture, especially when it moves horizontally, which leads to unstable lifting.
A precast concrete wellbore installation hook is designed, including device frame, side column, side plate, limiting device, friction reduction device, extension device and guide device, and stable lifting and vertical alignment of the wellbore through hydraulic rods and lifting rings. , and reduce friction after lifting is completed to facilitate retraction.
The stable lifting and vertical alignment of the wellbore is achieved, allowing the wellbore to move its position at will during the lifting process, avoiding swing and scratches, and simplifying the installation and disassembly of the wellbore.
Smart Images
Figure CN222181531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete shafts, in particular to a hook for installing a prefabricated concrete shaft. Background Art
[0002] A concrete well is a structure used to store water or other liquids. It is usually made of concrete and has good sealing and durability. Concrete wells are commonly used in urban water supply systems, industrial water systems, and agricultural irrigation systems.
[0003] In the prior art, when a concrete shaft is hoisted into a well, the shaft is usually directly hoisted by a lifting rope and a lifting belt. This lifting method is not stable and is not suitable for large-scale lateral movement of the shaft. Lateral swinging will cause the shaft to be unable to maintain a vertical downward posture. Based on this problem, we propose a hook for installing a prefabricated concrete shaft. Utility Model Content
[0004] The utility model aims to provide a hook for installing a prefabricated concrete shaft, so as to solve the problems existing in the prior art proposed by the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A hook for installing a precast concrete shaft comprises a device frame, the shaft is sleeved on the outer side of the device frame, side columns are arranged on both sides of the device frame, upper and lower ends of the two side columns are fixedly connected with side plates, side walls of the two upper side plates are penetrated with limiting devices, side walls of the two lower side plates are penetrated with friction reducing devices, side walls of the two side columns are fixedly connected with extension devices and guide devices, and the upper end of the device frame is fixedly connected with two lifting rings.
[0007] Preferably, the limiting device comprises a threaded hole penetrating through the side wall of the side plate located above, a limiting bolt is threadedly connected in the threaded hole, and the tail end of the limiting bolt is rotatably connected to the limiting plate.
[0008] Preferably, the friction reducing device comprises a groove penetrating through the side wall of the side plate located below, a pulley is rotatably connected in the groove, and a portion of the pulley protrudes from the outside of the groove.
[0009] Preferably, the extension device includes a connecting column fixedly connected to the side wall of the side column, a hydraulic rod is fixedly connected to the inner wall of the device frame at the corresponding position, the connecting column is slidably connected to the side wall of the device frame, one end of the connecting column located in the device frame is fixedly connected to the extended end of the hydraulic rod, and a limiting plate is fixedly connected to the side wall of the connecting column located in the device frame.
[0010] Preferably, the guide device comprises a guide rod fixedly connected to the side wall of the side column, and a guide hole is penetrated through the side wall of the device frame at a corresponding position, and the guide rod is slidably connected in the guide hole.
[0011] Preferably, the four side plates are respectively located outside the upper and lower sides of the wellbore.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the utility model, a limit device, a friction reducing device, an extension device and a guide device are provided to cooperate with each other, and the device is specially used for hoisting the wellbore. The device is placed on the inner side of the wellbore, and the side columns on both sides are pushed close to the inner side of the wellbore by the internal hydraulic rod, so that the side plates on both sides are displaced to the upper and lower sides of the wellbore. After the device is hoisted by the lifting ring, the wellbore can be directly lifted up by the side plates on both sides. During this process, the operator can screw the corresponding limit bolts to drive the limit plates to move, so that the side plates on both sides can be completely against the wellbore, which can directly limit the wellbore. The wellbore hoisted in the device can be moved and vertically aligned at will without skewing. When the wellbore is hoisted and docked and enters the well, the operator can control the hydraulic rod to retract the side plates on both sides, and the pulleys provided at the lower side plates can ensure that the side plates will not cause large-scale scratches on the wellbore during this process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A schematic diagram of the hoisting of a hook for installing a prefabricated concrete shaft proposed by the utility model;
[0015] Figure 2 The utility model is a schematic structural diagram of a hook for installing a prefabricated concrete shaft.
[0016] In the figure: 1 shaft, 2 limit plates, 3 limit bolts, 4 side plates, 5 lifting rings, 6 device frames, 7 hydraulic rods, 8 limit plates, 9 guide rods, 10 connecting columns, 11 side columns, and 12 pulleys. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0018] Reference Figure 1-2 A hook for installing a prefabricated concrete shaft comprises a device frame 6, a shaft 1 is sleeved on the outer side of the device frame 6, side columns 11 are arranged on both sides of the device frame 6, upper and lower ends of the two side columns 11 are fixedly connected with side plates 4, and the side walls of the two upper side plates 4 are penetrated by limiting devices, the limiting devices comprise threaded holes penetrated on the side walls of the upper side plates 4, the threaded holes are threadedly connected with limiting bolts 3, and the tail end of the limiting bolts 3 is rotatably connected with the limiting plate 2.
[0019] Among them, the side walls of the two side panels 4 located at the bottom are penetrated with friction reducing devices, which include grooves penetrated on the side walls of the side panels 4 located at the bottom, and a pulley 12 is rotatably connected in the groove, and a part of the pulley 12 protrudes from the outside of the groove.
[0020] Specifically, the side walls of the two side columns 11 are fixedly connected with an extension device and a guide device, the extension device includes a connecting column 10 fixedly connected to the side wall of the side column 11, and the inner wall of the device frame 6 at the corresponding position is fixedly connected with a hydraulic rod 7, the connecting column 10 is slidably connected to the side wall of the device frame 6, one end of the connecting column 10 located in the device frame 6 is fixedly connected to the extended end of the hydraulic rod 7, and the side wall of the connecting column 10 located in the device frame 6 is fixedly connected with a limiting plate 8, and the guiding device includes a guide rod 9 fixedly connected to the side wall of the side column 11, and a guide hole is penetrated on the side wall of the device frame 6 at the corresponding position, and the guide rod 9 is slidably connected in the guide hole.
[0021] Specifically, two lifting rings 5 are fixedly connected to the upper end of the device frame 6 , and four side plates 4 are respectively located outside the upper and lower sides of the wellbore 1 .
[0022] After the wellbore 1 is hoisted and docked, the operator can control the hydraulic rod 7 to retract the side plates 4 on both sides. When the two side plates 4 at the bottom are retracted, the corresponding pulleys 12 will reduce friction, allowing the side plates 4 to be retracted smoothly, making it convenient to hoist them out and carry out the hoisting of the next wellbore 1.
[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A hook for installing a precast concrete shaft, comprising a mounting frame (6), characterized in that: A shaft (1) is sleeved on the outer side of the device frame (6), and side columns (11) are arranged on both sides of the device frame (6). The upper and lower ends of the two side columns (11) are fixedly connected to the side plates (4), and the side walls of the two upper side plates (4) are penetrated by limiting devices, and the side walls of the two lower side plates (4) are penetrated by friction reducing devices. The side walls of the two side columns (11) are fixedly connected to extension devices and guide devices, and the upper end of the device frame (6) is fixedly connected to two lifting rings (5).
2. A hook for installing a precast concrete shaft according to claim 1, characterized in that: The limiting device comprises a threaded hole penetrating the side wall of the side plate (4) located above, a limiting bolt (3) is threadedly connected in the threaded hole, and the tail end of the limiting bolt (3) is rotatably connected to the limiting plate (2).
3. A hook for installing a precast concrete shaft according to claim 1, characterized in that: The friction reducing device comprises a groove penetrating the side wall of the side plate (4) located below, a pulley (12) being rotatably connected in the groove, and a portion of the pulley (12) protruding from the outside of the groove.
4. A hook for installing a precast concrete shaft according to claim 1, characterized in that: The extension device comprises a connecting column (10) fixedly connected to the side wall of the side column (11); a hydraulic rod (7) is fixedly connected to the inner wall of the device frame (6) at a corresponding position; the connecting column (10) penetrates and is slidably connected to the side wall of the device frame (6); one end of the connecting column (10) located inside the device frame (6) is fixedly connected to the extended end of the hydraulic rod (7); and a limiting plate (8) is fixedly connected to the side wall of the connecting column (10) located inside the device frame (6).
5. A hook for installing a precast concrete shaft according to claim 1, characterized in that: The guide device comprises a guide rod (9) fixedly connected to the side wall of the side column (11), and a guide hole is penetrated through the side wall of the device frame (6) at a corresponding position, and the guide rod (9) is slidably connected in the guide hole.
6. A hook for installing a precast concrete shaft according to claim 1, characterized in that: The four side plates (4) are respectively located outside the upper and lower sides of the wellbore (1).