A dragable rail-mounted material lifting device

By designing a draggable rail-mounted material lifting device, the safety hazards of construction workers lifting materials in the foundation pit were solved, and the materials were conveniently unloaded, improving construction safety and efficiency.

CN224493539UActive Publication Date: 2026-07-14GUANGXI JIANNING POWER TRANSMISSION ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI JIANNING POWER TRANSMISSION ENG CO LTD
Filing Date
2025-06-27
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When existing lifting equipment lifts materials in the foundation pit, construction workers need to tilt their bodies to lift the lifting bucket, which poses a safety hazard and is inconvenient to operate.

Method used

Design a draggable rail-mounted material lifting device, including a base frame, a support frame, a lifting device, and an anti-slip component. The base frame is fixed to the top of the pit, the support frame moves along the base frame, and the lifting device is suspended from the top of the support frame to achieve material offset unloading, avoiding direct lifting by construction personnel.

Benefits of technology

It reduces the risks associated with material unloading during construction, simplifies the operation for construction workers, and improves safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a drag formula rail material hoisting device, including bottom frame, support frame, foldable, remove and install in bottom frame, hoist and hang in the top of support frame, bottom frame is equipped with at least two anti -migration spare, and at least two anti -migration spare restricts bottom frame removal. When installing, place bottom frame on the top of foundation pit, fix through anti -migration spare, prevent displacement during use, and place support frame along the length direction of bottom frame. When using, the hoist on support frame can lower its lifting hook to the bottom of foundation pit, and the lifting hook hooks the material that needs to be hoisted, and the hoist is controlled to move the lifting hook to the top of foundation pit, and the lifting hook takes the material and hoists out of foundation pit, and at this moment, the operator moves support frame, and support frame drives hoist and the material on the lifting hook to deviate the top of foundation pit, and it is convenient for construction personnel to unload the material on the lifting hook. The utility model can unload after deviating the hoisted material from foundation pit, and can reduce the risk of construction personnel unloading material.
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Description

Technical Field

[0001] This utility model pertains to engineering construction lifting equipment, specifically relating to a towable rail-mounted material lifting device. Background Technology

[0002] There are two main methods for excavating foundation pits: manual excavation and mechanical excavation. Manual excavation involves workers digging the soil manually using tools such as shovels and hammers. The excavated soil is then lifted and removed from the bottom of the pit.

[0003] The conventional lifting method involves fixing a lifting device at the top of the pit. Workers at the bottom of the pit load the excavated soil into a lifting bucket, and then hook the lifting device's hook onto the bucket. Workers at the top of the pit operate the lifting device to raise the hook, while the bucket rises with the hook. When the bucket reaches the top of the pit, workers must tilt their bodies to lift it. Clearly, the existing lifting method is not only inconvenient for workers to lift the bucket, but also poses a safety hazard as the bucket remains suspended at the top of the pit. Therefore, to address the shortcomings of existing technology, a towable, rail-guided material lifting device has been developed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a draggable rail-mounted material lifting device.

[0005] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted:

[0006] A draggable rail-mounted material lifting device includes a base frame; a support frame, which is foldable and movable and installed on the base frame; a lifter suspended from the top of the support frame; and anti-slip members, wherein the base frame is equipped with at least two anti-slip members, which restrict the movement of the base frame.

[0007] As a further improvement to the technical solution, the draggable rail-mounted material lifting device of this utility model also includes a limiting component. At least one limiting component is installed on the bottom frame, and the at least one limiting component restricts the movement position of the support frame.

[0008] As a further improvement to the technical solution, the draggable rail-mounted material lifting device of this utility model also includes a connecting plate and a pad; multiple connecting plates are installed on the bottom frame, and the multiple connecting plates are used to support the installation pad.

[0009] As a further improvement to the technical solution, the draggable rail-mounted material lifting device of this utility model also includes anti-slip components and overlapping plates. Each connecting plate is provided with at least one anti-slip component, and the pad is provided with a through groove corresponding to the anti-slip component; at least one overlapping plate is installed on both sides of the bottom frame.

[0010] As a further improvement to the technical solution, the support frame includes a first bracket; a second bracket hinged to the first bracket; and a locking rod, both ends of which are detachably connected to the corresponding first and second brackets.

[0011] As a further improvement to the technical solution, the present invention's draggable rail-mounted material lifting device also includes bolts, and the locking rod is fixedly connected to the first bracket and the second bracket by bolts.

[0012] As a further improvement to the technical solution, the draggable rail-mounted material lifting device of this utility model also includes support rods and hinges. Support rods are provided on both the first bracket and the second bracket, and the two support rods are connected by at least two hinges.

[0013] As a further improvement to the technical solution, the draggable rail-mounted material lifting device of this utility model also includes a U-shaped rod and a support plate. The two ends of the U-shaped rod are sequentially connected by the gap between the two support rods, the support plate overlapping the two support rods, and the nut.

[0014] As a further improvement to the technical solution, the present invention's draggable rail-mounted material lifting device also includes pins, with pins inserted at both ends of the U-shaped rod to prevent the nut from loosening upwards.

[0015] As a further improvement to the technical solution, the base frame includes a first guide rail; a second guide rail, which is arranged parallel to the first guide rail at a distance; and reinforcing rods, wherein the first guide rail and the second guide rail are connected and fixed by at least two reinforcing rods.

[0016] The present invention represents a significant advancement over the prior art:

[0017] This invention allows materials lifted from a foundation pit to be offset from the pit before being unloaded. Specifically, a base frame is attached to the top of the pit. A support frame is moved along the length of the base frame to the top of the pit. A lifting device located on the support frame lowers its hook to the bottom of the pit. The hook hooks the material to be lifted, and the lifting device can be manipulated to move the hook towards the top of the pit. The hook moves the material to the top of the pit, and then the support frame is moved, causing the lifting device and the material on the hook to be offset from the top of the pit. This facilitates the unloading of the material from the hook by construction workers, avoiding the need for workers to tilt their bodies to lift materials located above the pit, and reducing the risk of injury to workers during material unloading. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the structure of a draggable rail-mounted material lifting device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0021] Figure 3 This is a schematic diagram of one structure for laying the pad in this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the lifter, the U-shaped rod, and the support rod in this utility model;

[0023] The names and serial numbers of each component in the diagram are as follows:

[0024] 1-Support frame, 101-First bracket, 102-Second bracket, 103-Support rod, 104-Hinge, 105-Locking rod, 106-Bolt, 107-Roller, 2-Handle, 3-U-shaped rod, 4-Support plate, 5-Nut, 6-Lifter, 7-Anti-slip component, 71-Force application rod, 72-Vertical rod, 8-Bottom frame, 81-First guide rail, 82-Second guide rail, 83-Reinforcing rod, 9-Connecting plate, 10-Anti-slip component, 11-Overlap plate, 12-Limiting component, 14-Pad, 15-Pin. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments in this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0026] Example 1:

[0027] like Figure 1-4 As shown, a towable rail-mounted material lifting device includes a base frame 8, a support frame 1, a lifter 6, and anti-slip components 7. The support frame 1 is foldable and movably mounted on the base frame 8; the lifter 6 is suspended from the top of the support frame 1; the base frame 8 is equipped with at least two anti-slip components 7, which restrict the movement of the base frame 8.

[0028] The number of anti-slip components 7 can be 2, 3, or 4. The anti-slip components 7 are inserted through the base frame 8 and fixed to the ground, thus preventing the base frame from moving.

[0029] It should be noted that the anti-slip component 7 is generally installed at both ends of the bottom frame 8. It can restrict the movement of the bottom frame and prevent the support frame 1 from slipping off when it slides along the bottom frame.

[0030] like Figure 2 As shown, one structure of the anti-shifting component includes a force-applying rod 71 and a vertical rod 72, which are vertically fixedly connected. To facilitate insertion of the vertical rod 72 into the soil, it is provided with a pointed tip. The pointed tip allows the vertical rod 72 to be easily inserted into the soil. In use, the bottom frame 8 has through holes at both ends. The vertical rod 72 is inserted into the through holes, and a force is applied to the force-applying rod 71. The force-applying rod 71 compresses the vertical rod 72, causing it to penetrate into the soil through its pointed tip. When the vertical rod has penetrated to an appropriate depth, the force applied to the force-applying rod is stopped. The insertion depth of the vertical rod is generally 10–50 cm. 10, 20, 30, 40, or 50 cm can be selected. Of course, the insertion depth is not limited to this. The appropriate insertion depth can be determined based on the soil density at the location of the foundation pit to effectively fix the bottom frame.

[0031] One type of hoist 6 can be an electric hoist. It is used to lift materials inside the pit. Understandably, the hoist includes a hook and wire rope, etc.

[0032] In use, the bottom frame 8 is attached to the top of the pit, and the anti-slip device 7 is used to fix the bottom frame. Then, the support frame 1 is moved and installed on the bottom frame 8, and the hoist 6 is suspended from the top of the support frame 1. The support frame 1 is moved along the length of the bottom frame 8 to the top of the pit. The construction worker at the top of the pit then operates the hoist 6 to move its hook down to the bottom of the pit. The construction worker at the bottom of the pit hooks the hoist to the lifting bucket containing the excavated material. Then, the construction worker at the top of the pit operates the hoist to move the hook upward, while the hook moves the lifting bucket up to the top of the pit. When the lifting bucket moves to the top of the pit, the hoist is stopped, and the support frame is moved away from the pit. The construction worker can then easily unload the lifting bucket from the hoist without having to tilt their body to lift the lifting bucket located above the pit. After unloading the excavated material from the lifting bucket, the lifting bucket is suspended from the hook again, and the support frame is moved to the top of the pit. The previous operation can then be repeated.

[0033] Example 2:

[0034] Compared with Embodiment 1, the only difference is that a limiting structure is provided for moving the support frame to the top of the pit, and a limiting member 12 is added. At least one limiting member 12 is installed on the bottom frame 8, and the at least one limiting member 12 restricts the movement position of the support frame 1.

[0035] like Figure 1 , 3As shown, one structure of the limiting member 12 can be a vertical rod. The connection between the vertical rod and the bottom frame can be a threaded connection or a welded fixed connection, etc.

[0036] The number of limiting devices can be one or two. In use, construction workers push the support frame along the bottom frame towards the pit. When the support frame touches the limiting device 12, the limiting device 12 prevents the support frame from continuing to move along the bottom frame. At this point, the support frame is located at the top of the pit. Understandably, the limiting device facilitates preventing the support frame from moving beyond the pit when moving along the bottom frame towards the pit.

[0037] Example 3:

[0038] Compared with Embodiment 1 or 2, the only difference is that: a connecting plate 9 and a pad 14 are added; multiple connecting plates 9 are installed on the bottom frame 8, and the multiple connecting plates 9 are used to support the mounting pad 14.

[0039] One structure of the pad 14 can be a grating. Existing surface treatment technologies for gratings include a combination of serrated flat steel and checkered plate. The serrated flat steel is formed with a serrated pattern on the surface of the bearing flat steel through a pressing process, which significantly increases the friction and can achieve an anti-slip coefficient of over 0.8 in wet environments.

[0040] like Figure 3 As shown, a base plate 14 is laid around the bottom frame 8. When construction workers step on the base plate, it can prevent them from directly stepping on the soil around the foundation pit, thus preventing the soil around the foundation pit from becoming muddy due to repeated trampling.

[0041] Example 4:

[0042] Compared with Embodiment 3, the only difference is that: in order to prevent the pad from detaching from the connecting plate, an anti-slip component 10 is added, and each connecting plate 9 is provided with at least one anti-slip component 10, and the pad 14 is provided with a through groove corresponding to the anti-slip component 10.

[0043] like Figure 3 As shown, multiple connecting plates 9 are installed on the base frame 8. During installation, the through groove on the pad is fitted onto the anti-slip component 10 on the connecting plate. The anti-slip component will prevent the pad from separating from the connecting plate.

[0044] One structure of the anti-slip component 10 can be a vertical plate. The vertical plate is installed vertically on the connecting plate.

[0045] To reinforce the base frame, overlapping plates 11 are added. At least one overlapping plate 11 is installed on each side of the base frame 8. The number of overlapping plates installed on each side can be 1, 2, 3, 4, or 5, etc. When the base frame overlaps the top of the excavation pit, the overlapping plates can overlap the top surface of the pit, thus providing support to the base frame and enhancing its load-bearing capacity.

[0046] Example 5:

[0047] Compared with any of Embodiments 1-4, the only difference is that a structure of the support frame is provided, the support frame 1 including a first bracket 101, a second bracket 102 and a locking rod 105. The second bracket 102 is hinged to the first bracket 101; the two ends of the locking rod 105 are detachably connected to the corresponding first bracket 101 and second bracket 102.

[0048] The second support 102 is hinged to the first support 101, and the first support and the second support can swing relative to each other, so as to achieve the folding of the first support and the second support.

[0049] Locking rod 105 prevents the first and second supports from swinging relative to each other. After the first and second supports have swung to the desired opening angle, locking rod 105 is installed, which then prevents the first and second supports from swinging. When the first and second supports need to be folded, the locking rod is removed, and the first and second supports can then swing relative to each other.

[0050] like Figure 1-3 As shown, the first support 101 and the second support 102 form a V-shaped structure after they are opened.

[0051] Example 6:

[0052] Compared with Embodiment 5, the only difference is that a connection structure between the locking rod and the first and second brackets is provided, and bolts 106 are added for installation. The locking rod 105 is fixedly connected to the first bracket 101 and the second bracket 102 by bolts 106.

[0053] like Figure 1 , 3 As shown, when bolt 106 is tightened, the first bracket 101, the second bracket 102, and the locking rod are fixedly connected by bolts. When the first bracket and the second bracket need to swing relative to each other, one bolt is loosened, the other bolt is removed, and it is disengaged from the locking rod. At this time, the locking rod releases the locking effect of the first bracket and the second bracket, and the first bracket and the second bracket can swing.

[0054] Example 7:

[0055] Compared with Embodiment 5, the only difference is that a connection structure between the first bracket and the second bracket is provided, and a support rod 103 and a hinge 104 are added. Both the first bracket 101 and the second bracket 102 are provided with support rods 103, and the two support rods 103 are connected by at least two hinges 104.

[0056] The hinged connection of the two support rods: The two support rods are equipped with at least two hinges along their length, and the two support rods are hinged together by at least two hinges.

[0057] In this embodiment, it is further preferred that two hinges are installed. Two hinges can be installed between the two support rods, with the two hinges spaced apart. The two support rods are connected by hinges, creating a gap between them. The two ends of the U-shaped rod can pass through the gap between the two hinges and between the two support rods.

[0058] Example 8:

[0059] Compared with Embodiment 7, the only difference is that an installation structure for the lifter is provided, with the addition of a U-shaped rod 3 and a support plate 4. The two ends of the U-shaped rod 3 are sequentially threaded through the gap between the two support rods 103, and the support plate 4, which overlaps the two support rods 103, is threadedly connected to the nut 5.

[0060] Each end of the U-shaped rod 3 can be threaded with at least one nut. One or two nuts can be installed. Using two nuts simultaneously can provide some anti-loosening protection.

[0061] The U-shaped rod 3 is suspended from the support frame 1 via the support plate 4 and the nut 5. The U-shaped rod 3 is used to support the suspension lifter 6.

[0062] Understandably, the support plate overlaps the two support rods but is not fixedly connected to them. Once the nuts on both ends of the U-shaped rod are removed, the U-shaped rod can be detached from the support plate, and the support plate can then be removed from the two support rods.

[0063] Example 9:

[0064] Compared with Example 7, the only difference is that, in order to further prevent the nut from loosening, a pin 15 is added, and pins 15 are inserted into both ends of the U-shaped rod 3 to prevent the nut 5 from loosening upward.

[0065] Understandably, both ends of the U-shaped rod 3 are provided with pin holes for the pin to pass through. When the pin passes through the pin hole, the pin is installed on the U-shaped rod, and the pin can prevent the nut from loosening upwards.

[0066] Example 10:

[0067] Compared with any of Embodiments 1-9, the only difference is that a structure of the bottom frame is provided, the bottom frame 8 including a first guide rail 81, a second guide rail 82 and reinforcing rods 83. The second guide rail 82 is arranged parallel to the first guide rail 81 at intervals; the first guide rail 81 and the second guide rail 82 are connected and fixed by at least two reinforcing rods 83.

[0068] like Figure 1-3 As shown, the bottom of the first bracket 101 and the second bracket 102 are each provided with two rollers 107, and the first bracket 101 and the second bracket 102 are tactilely connected to the bottom frame 8 through the two rollers 107.

[0069] like Figure 1 As shown, the first bracket 101 is rotatably connected to the first guide rail 81 via two rollers 107. The second bracket 102 is rotatably connected to the second guide rail 82 via two rollers 107. It is understood that the rollers can roll along the guide rails.

[0070] The first support 101 and the second support 102 can move on the base frame 8 with the help of rollers.

[0071] How the support frame moves on the base frame:

[0072] Simultaneously, the first support 101 and the second support 102 are pushed. The first support 101 and the second support 102 can move along the guide rail of the bottom frame 8 with the help of the roller 107, so that the support frame 1 can move along the bottom frame 8. Thus, the support frame 1 can drive the lifting device suspended on it to move, and then the lifting device can be moved or deviated to the top of the pit through the support frame.

[0073] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A towable rail-mounted material lifting device, characterized in that: include Base frame (8); The support frame (1) is foldable and movable and installed on the base frame (8). The lifting device (6) is suspended from the top of the support frame (1); as well as Anti-slip element (7), the bottom frame (8) is equipped with at least two anti-slip elements (7), the at least two anti-slip elements (7) restrict the movement of the bottom frame (8).

2. The towable rail-mounted material lifting device according to claim 1, characterized in that: It also includes a limiting member (12), at least one limiting member (12) is installed on the bottom frame (8), and the at least one limiting member (12) restricts the movement position of the support frame (1).

3. The towable rail-mounted material lifting device according to claim 1, characterized in that: It also includes connecting plates (9) and pads (14); multiple connecting plates (9) are installed on the bottom frame (8), and the multiple connecting plates (9) are used to support the installation pads (14).

4. The towable rail-mounted material lifting device according to claim 3, characterized in that: It also includes anti-slip components (10) and overlapping plates (11), each connecting plate (9) is provided with at least one anti-slip component (10), and the pad (14) is provided with a through groove corresponding to the anti-slip component (10); at least one overlapping plate (11) is installed on both sides of the bottom frame (8).

5. The towable rail-mounted material lifting device according to claim 1, characterized in that: The support frame (1) includes First support (101); The second bracket (102) is hinged to the first bracket (101); as well as The locking rod (105) is detachably connected at both ends to the corresponding first bracket (101) and second bracket (102).

6. The towable rail-mounted material lifting device according to claim 5, characterized in that: It also includes bolts (106), and the locking rod (105) is fixedly connected to the first bracket (101) and the second bracket (102) by bolts (106).

7. The towable rail-mounted material lifting device according to claim 5, characterized in that: It also includes support rods (103) and hinges (104). Support rods (103) are provided on the first bracket (101) and the second bracket (102). The two support rods (103) are connected by at least two hinges (104).

8. The towable rail-mounted material lifting device according to claim 7, characterized in that: It also includes a U-shaped rod (3) and a support plate (4), wherein the two ends of the U-shaped rod (3) are sequentially threaded through the gap between the two support rods (103), the support plate (4) overlapping the two support rods (103), and the nut (5) are threadedly connected.

9. The towable rail-mounted material lifting device according to claim 8, characterized in that: It also includes pins (15), with pins (15) inserted at both ends of the U-shaped rod (3), and the blocking nut (5) loosens upward.

10. The towable rail-mounted material lifting device according to any one of claims 1-9, characterized in that: The base frame (8) includes First guide rail (81); The second guide rail (82) is arranged parallel to the first guide rail (81) at a distance; and The first guide rail (81) and the second guide rail (82) are connected and fixed by at least two reinforcing rods (83).