Portable lifting device
Through the design of the portable lifting device, the use of vertical frames, horizontal frames and hand-crank winches and other structures has solved the problem of time-consuming and labor-intensive heavy objects such as jacks in the reinforcement of the house foundation, and achieved the efficient and lightweight lifting effect of single-person operation.
Patent Information
- Application Number
- CN202422517816.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-17
AI Technical Summary
During the construction of house foundation reinforcement, the handling and lifting of heavy objects such as jacks is time-consuming and labor-intensive, especially in the limited space of underground tunnels, many people need to cooperate, and the existing equipment is large in weight and complex in operation.
A portable lifting device is designed, adopting vertical frames, transverse frames and universal wheel structures, combined with hand-crank winch and guide pulleys, and vertical lifting of heavy objects is achieved through wire rope guidance. The overall structure is simple and has strong applicability. It can be lifted by more than 400kg at a time, and it is easy to operate.
It has achieved time-saving and labor-saving improvement in heavy objects under single operation, with a lifting height of more than 2m, the whole machine is lightweight, low processing cost, and efficient construction.
Smart Images
Figure CN223150180U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a portable lifting device. Background Technique
[0002] In the field of house foundation reinforcement construction, the pit-type jacked pile construction technology is commonly used. During the construction of jacked piles, one end of the jack is against the house foundation, and the reaction force of the house foundation is utilized. After the other end of the jack is against the pipe pile and pressure is applied, the steel pipe pile is pressed into the soil layer. Finally, the foundation is reinforced by replacing the jack with a precast short-section steel pipe. Due to the limited space of the underground tunnel during construction, the working surface for manual handling of the jack is limited, and a 100t jack weighs 70kg. Generally, at least 2 people are required to lift it together and raise it to the working surface height, which is time-consuming and laborious.
[0003] Therefore, the utility model provides a portable lifting device, which is time-saving and labor-saving compared with manual handling and lifting of heavy objects. Specifically, heavy objects such as jacks can be hoisted onto this device. Only one person is needed to push this device for horizontal transportation to the working point. One side is leaned against the wall or structure. After locking the bottom traveling wheels, manually rotate the winch to drive the lifting platform to vertically lift the heavy object to the working height. The structure is simple and the usability is strong to solve the above problems. Summary of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a portable lifting device to solve the above problems.
[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A portable lifting device includes two vertical frames. A horizontal frame is fixedly installed between the bottoms of the two vertical frames. Universal wheels are fixedly installed at the bottom of the horizontal frame. A first horizontal rod and a second horizontal rod are arranged between the two vertical frames. Pulleys are rotatably connected to both ends of the first horizontal rod and the second horizontal rod. The pulleys are rotatably connected inside the corresponding vertical frames. A lifting panel is fixedly installed at the top of the second horizontal rod. A triangular frame is fixedly installed between the lifting panel and the first horizontal rod. A vertical rod is fixedly installed between the first horizontal rod and the second horizontal rod.
[0006] Preferably: A cross plate is fixedly installed on the back between the two vertical frames, and a connecting steel plate is fixedly installed between the backs of the two vertical frames.
[0007] Preferably: A guiding pulley is fixedly installed on the front of the connecting steel plate. A hand winch is fixedly installed on the backs of the two cross plates below the connecting steel plate. A steel wire rope is fixedly installed between the hand winch and the first horizontal rod. The steel wire rope passes through the outside of the guiding pulley.
[0008] Preferably, the casters are equipped with self-locking devices, and the hand winch is equipped with a self-locking device.
[0009] Preferably, the vertical frames and the horizontal frames are made of channel steel, the horizontal plates are made of angle steel, and the connecting steel plates are made of steel plates.
[0010] Preferably, the lifting panel is made of patterned steel plate, the tripod is made of angle steel, and the first horizontal rod, the vertical rod and the second horizontal rod are made of round steel.
[0011] Advantageous Effects
[0012] The present utility model provides a portable lifting device. Compared with the prior art, it has the following advantageous effects:
[0013] 1. For this portable lifting device, by manually rotating the hand winch and guiding through the steel wire rope and the guiding pulley, the lifting panel can drive the heavy object to be lifted vertically upward to the working height. The overall structure is simple, with strong applicability. It can lift to a height exceeding 2m at one time, and the lifted heavy object can reach more than 400kg. The whole machine is lightweight, easy to operate, with low processing cost and high construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0015] Figure 1 is a three-dimensional external structure view of the present utility model;
[0016] Figure 2 is a three-dimensional structure view of the present utility model;
[0017] Figure 3 is a three-dimensional bottom structure view of the present utility model;
[0018] Figure 4 is a three-dimensional bottom structure view of the lifting panel of the present utility model,
[0019] In the figure: 1. Vertical frame; 2. Horizontal frame; 3. Horizontal plate; 4. Connecting steel plate; 5. Guiding pulley; 6. Lifting panel; 7. Pulley; 8. Tripod; 9. First horizontal rod; 10. Steel wire rope; 11. Hand winch; 12. Caster; 13. Vertical rod; 14. Second horizontal rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] It should be noted that in the description of the embodiments of the present application, the orientation or positional relationship indicated by terms such as "front, back", "left, right", "up, down", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present application. The terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0021] The present application will be further elaborated in detail below with reference to the drawings and embodiments.
[0022] Refer to Figures 1 to 4 , an embodiment of the present application provides a portable lifting device, which includes two vertical frames 1. A horizontal frame 2 is fixedly installed between the bottoms of the two vertical frames 1. A universal wheel 12 is fixedly installed at the bottom of the horizontal frame 2. A first horizontal rod 9 and a second horizontal rod 14 are arranged between the two vertical frames 1. Pulleys 7 are rotatably connected to both ends of the first horizontal rod 9 and the second horizontal rod 14. The pulleys 7 are rotatably connected inside the corresponding vertical frames 1. A lifting panel 6 is fixedly installed at the top of the second horizontal rod 14. A triangular frame 8 is fixedly installed between the lifting panel 6 and the first horizontal rod 9. A cross plate 3 is fixedly installed on the back between the two vertical frames 1. A connecting steel plate 4 is fixedly installed between the backs of the two vertical frames 1. A vertical rod 13 is fixedly installed between the first horizontal rod 9 and the second horizontal rod 14.
[0023] A guiding pulley 5 is fixedly installed on the front of the connecting steel plate 4. A hand winch 11 is fixedly installed on the backs of the two cross plates 3 below the connecting steel plate 4. A steel wire rope 10 is fixedly installed between the hand winch 11 and the first horizontal rod 9. The steel wire rope 10 passes through the outside of the guiding pulley 5. The universal wheel 12 is equipped with a self-locking device, and the hand winch 11 is equipped with a self-locking device. The vertical frames 1 and the horizontal frame 2 are made of channel steel. The cross plate 3 is made of angle steel. The connecting steel plate 4 is made of steel plate. The lifting panel 6 is made of patterned steel plate. The triangular frame 8 is made of angle steel. The first horizontal rod 9, the vertical rod 13, and the second horizontal rod 14 are made of round steel.
[0024] In this embodiment, the existing steel scrap on the construction site is utilized. The outer frame of the entire lifting device is fabricated by welding channel steels, which serves as the main load-bearing unit of the whole machine. Then, steel plates are welded horizontally as the horizontal connection and reinforcement device. A lifting platform is processed at the bottom of the device. The lifting platform is embedded in the vertical side frames of the channel steels through pulleys and can slide vertically. A hand winch (with a self-locking device) is welded on one side of the vertical side frame, and a guiding pulley is welded horizontally at the top. The bottom horizontal lifting platform, the top guiding pulley, and the lateral hand winch are connected by steel wires. By manually turning the winch, the platform can be lifted; walking wheels (with a self-locking device) are installed at the bottom of the device to achieve horizontal movement. After reaching the operation point, the wheels are locked to prevent rotation and ensure operation safety.
[0025] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0026] Working principle: During use, heavy objects such as jacks are lifted onto this device. Only one person is required to push this device for horizontal transportation to the operation point. One side of the entire vertical frame 1 is leaned against a wall or a structure, and the universal wheels 12 are locked. By manually turning the hand winch 12, with the guidance of the steel wire 10 and the guiding pulley 5, the lifting panel 6 can drive the heavy object to be lifted vertically upward to the operation height. The overall structure is simple, highly applicable, can lift to a height exceeding 2 m at one time, can lift heavy objects of more than 400 kg, the whole machine is lightweight, easy to operate, has a low processing cost, and is highly efficient in construction.
[0027] It should be noted that in this article, 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 explicitly listed, or further includes elements inherent to such process, method, article or device.
[0028] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A portable lifting device, comprising two vertical frames (1), characterized in that: A horizontal frame (2) is fixedly installed between the bottoms of two vertical frames (1). A universal wheel (12) is fixedly installed at the bottom of the horizontal frame (2). A first horizontal rod (9) and a second horizontal rod (14) are arranged between the two vertical frames (1). Pulleys (7) are rotatably connected to both ends of the first horizontal rod (9) and the second horizontal rod (14). The pulleys (7) are rotatably connected inside the corresponding vertical frames (1). A lifting panel (6) is fixedly installed at the top of the second horizontal rod (14). A triangular frame (8) is fixedly installed between the lifting panel (6) and the first horizontal rod (9). A vertical rod (13) is fixedly installed between the first horizontal rod (9) and the second horizontal rod (14).
2. A portable lifting device according to claim 1, wherein: A horizontal plate (3) is fixedly installed on the back between the two vertical frames (1). A connecting steel plate (4) is fixedly installed between the backs of the two vertical frames (1).
3. A portable lifting device according to claim 2, characterized in that: A guiding pulley (5) is fixedly installed on the front of the connecting steel plate (4). A hand winch (11) is fixedly installed on the backs of two horizontal plates (3) below the connecting steel plate (4). A steel wire rope (10) is fixedly installed between the hand winch (11) and the first horizontal rod (9). The steel wire rope (10) passes through the outside of the guiding pulley (5).
4. A portable lifting device according to claim 3, wherein: The universal wheel (12) is equipped with a self-locking device, and the hand winch (11) is equipped with a self-locking device.
5. A portable lifting device according to claim 4, wherein: The vertical frames (1) and the horizontal frame (2) are made of channel steel. The horizontal plate (3) is made of angle steel. The connecting steel plate (4) is made of steel plate.
6. The portable lifting device according to claim 1, wherein: The lifting panel (6) is made of patterned steel plate. The triangular frame (8) is made of angle steel. The first horizontal rod (9), the vertical rod (13) and the second horizontal rod (14) are made of round steel.