Hand-cranking elevator for manually excavating earthwork

Abstract

The utility model relates to the technical field of building construction, and discloses a manual earthwork excavation hand-cranking elevator which comprises a supporting frame, a rotating shaft and a winding reel, the two ends of the rotating shaft are installed on the top of the supporting frame through bearing seats, one end of the rotating shaft is fixedly connected with a hand-cranking handle, and the winding reel is fixedly installed on the rotating shaft. The two ends of the winding reel are fixedly connected with circular baffles, and the winding reel, the rotating shaft and the circular baffles are coaxially arranged. Through the cooperation of the rotating shaft and the winding reel, a container filled with earthwork can be rapidly lifted out of a pit, the problem of earthwork accumulation is effectively solved, the situation that constructors frequently transfer the earthwork through manpower is avoided, the earthwork transfer efficiency is greatly improved, and the foundation pit excavation progress is accelerated. In addition, by arranging a brake pad, the winding reel can be effectively prevented from rotating reversely due to external force in the lifting process, the stability of the lifting process is guaranteed, and the problems of earthwork backflow and the like caused by reverse rotation of the winding reel are solved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a hand-cranked hoist for manual excavation of earth. Background Technology

[0002] In the construction of power transmission lines, the main tasks involve tower erection and conductor stringing. Before tower erection, the appropriate foundation type needs to be configured according to the tower model. The first step in tower erection is to accurately measure the center point of each tower leg pit to facilitate deep pit excavation. Mechanical excavation can save time and labor, completing this task quickly and efficiently. However, many uncontrollable factors arise during construction. In cases where the soil around the tower foundation is hard rock, manual excavation is necessary to ensure the foundation depth and diameter meet design requirements. However, with increasing pit depth, the temporary accumulation of excavated soil severely restricts the limited working space, requiring frequent manual removal of soil. This process is not only inefficient and labor-intensive but also prone to delays. Furthermore, delays in soil removal can affect the precise control of pit dimensions, thus threatening the quality of foundation construction. Therefore, a hand-cranked hoist for manual excavation has been developed. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a manual excavation earthmoving hand-cranked hoist to solve the problems mentioned in the background art.

[0004] To achieve the aforementioned objectives of this utility model, the technical solution adopted is as follows:

[0005] A hand-cranked hoist for manual excavation includes a support frame, a rotating shaft, and a reel. The two ends of the rotating shaft are mounted on the top of the support frame via bearing seats. A hand crank is fixedly connected to one end of the rotating shaft. The reel is fixedly mounted on the rotating shaft, and circular baffles are fixedly connected to both ends of the reel. The reel, rotating shaft, and circular baffles are coaxially arranged.

[0006] As a further improvement of this utility model, the support frame is an isosceles trapezoidal structure. The support frame includes a rectangular frame, support legs and connecting rods. Support legs are connected to the four bottom corners of the rectangular frame, and connecting rods are connected between adjacent support legs.

[0007] As a further improvement of this utility model, U-shaped connectors are fixedly connected to the four bottom corners of the rectangular frame. The U-shaped connectors are detachably connected to the support legs by fastening bolts. Connecting sleeves are fixed on the support legs. The two ends of the connecting rod are fixed in the connecting sleeves by pins to realize the quick assembly and disassembly of the support frame.

[0008] As a further improvement of this utility model, the hand crank handle has a Z-shaped structure.

[0009] As a further improvement of this utility model, it also includes a brake pad to prevent the spool from reversing. The brake pad is located on the side near the hand crank handle. The lower end of the brake pad is connected to a rotating shaft. The two ends of the rotating shaft are respectively rotatably installed in the mounting holes provided on the corresponding side fixing bases. The fixing bases are fixed to the top of the support frame. A plurality of limiting slots are provided on the circular baffle on the side near the hand crank handle. The limiting slots cooperate with the brake pad. When in use, the brake pad is manually moved to engage with the limiting slots, which can prevent the spool from reversing.

[0010] The beneficial effects of this utility model are: by combining the rotating shaft and the winding drum, the container filled with soil can be quickly lifted out of the pit, which effectively solves the problem of soil accumulation, avoids construction workers from frequently transporting soil by hand, greatly improves the efficiency of soil transportation, and speeds up the excavation progress of the foundation pit.

[0011] The brake pads effectively prevent the cable reel from reversing during the lifting process due to external forces, ensuring the stability of the lifting process and avoiding problems such as soil backflow caused by the reversal of the cable reel, thus further ensuring the construction quality.

[0012] The support frame adopts an isosceles trapezoidal structure. Its rectangular frame is detachably connected to the support legs at the four corners of its bottom via U-shaped connectors and fastening bolts. The two ends of the connecting rods are fixed to the connecting sleeves with pins. This structural design allows for quick assembly and disassembly of the support frame, facilitating its transfer and assembly between different construction sites, greatly improving the equipment's flexibility and versatility.

[0013] This utility model has significant advantages in terms of construction efficiency, labor intensity, construction quality, and equipment disassembly and transportation. It can effectively solve many problems existing in manual earthwork excavation and has high practical value and promising prospects for promotion and application. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of the structure of section A in the middle;

[0017] Figure 3 for Figure 1Enlarged view of the structure of section B in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the brake pads involved in this utility model;

[0019] Figure 5 for Figure 4 Enlarged view of the C-section structure.

[0020] In the diagram: 1. Support frame, 2. Rotating shaft, 3. Winding drum, 4. Bearing seat, 5. Hand crank, 6. Circular baffle, 7. Rectangular frame, 8. Support leg, 9. Connecting rod, 10. U-shaped connector, 11. Fastening bolt, 12. Connecting sleeve, 13. Pin, 14. Brake pad, 15. Rotating shaft, 16. Fixed seat, 17. Limiting slot. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] Example 1

[0024] like Figure 1 As shown, a manual excavation earthmoving hand-cranked hoist includes a support frame 1, a rotating shaft 2, and a winding drum 3. The two ends of the rotating shaft 2 are mounted on the top of the support frame 1 through bearing seats 4. A hand crank handle 5 is fixedly connected to one end of the rotating shaft 2. The winding drum 3 is fixedly mounted on the rotating shaft 2, and circular baffles 6 are fixedly connected to both ends of the winding drum 3. The winding drum 3, the rotating shaft 2, and the circular baffles 6 are coaxially arranged.

[0025] The support frame 1 is an isosceles trapezoidal structure. The support frame 1 includes a rectangular frame 7, support legs 8 and connecting rods 9. Support legs 8 are connected to the four bottom corners of the rectangular frame 7, and connecting rods 9 are connected between adjacent support legs 8.

[0026] Example 2

[0027] Based on the structure of Embodiment 1, in Embodiment 2, as follows: Figure 2-3As shown, U-shaped connectors 10 are fixedly connected to the four bottom corners of the rectangular frame 7. The U-shaped connectors 10 are detachably connected to the support legs 8 by fastening bolts 11. Connecting sleeves 12 are fixed on the support legs 8. The two ends of the connecting rod 9 are fixed in the connecting sleeves 12 by pins 13 to realize the quick assembly and disassembly of the support frame 1.

[0028] The hand crank handle 5 has a Z-shaped structure.

[0029] Example 3

[0030] Based on the structure of Example 2, in Example 3, as follows: Figure 4-5 As shown, it also includes a brake pad 14 to prevent the spool 3 from reversing. The brake pad 14 is located on the side near the hand crank handle 5. The lower end of the brake pad 14 is connected to a rotating shaft 15. The two ends of the rotating shaft 15 are respectively rotatably installed in the mounting holes provided on the corresponding side fixing seat 16. The fixing seat 16 is fixed to the top of the support frame 1. A plurality of limiting slots 17 are provided on the circular baffle 6 on the side near the hand crank handle 5. The limiting slots 17 cooperate with the brake pad 14. When in use, the brake pad 14 is manually moved to engage with the limiting slots 17, which can prevent the spool 3 from reversing.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, component disassembly or combination, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hand-cranked hoist for manual excavation of earth, characterized in that: The device includes a support frame, a rotating shaft, and a winding drum. The two ends of the rotating shaft are mounted on the top of the support frame via bearing seats. A hand crank is fixedly connected to one end of the rotating shaft. The winding drum is fixedly mounted on the rotating shaft, and circular baffles are fixedly connected to both ends of the winding drum. The winding drum, the rotating shaft, and the circular baffles are coaxially arranged.

2. The hand-cranked hoist for manual excavation of earth as described in claim 1, characterized in that: The support frame is an isosceles trapezoidal structure, which includes a rectangular frame, support legs and connecting rods. Support legs are connected to the four bottom corners of the rectangular frame, and connecting rods are connected between adjacent support legs.

3. The hand-cranked hoist for manual excavation of earth as described in claim 2, characterized in that: U-shaped connectors are fixedly connected to the four bottom corners of the rectangular frame. The U-shaped connectors are detachably connected to the support legs by fastening bolts. Connecting sleeves are fixed on the support legs, and the two ends of the connecting rod are fixed in the connecting sleeves by pins.

4. The hand-cranked hoist for manual excavation of earth as described in claim 1, characterized in that: The hand crank handle has a Z-shaped structure.

5. A hand-cranked hoist for manual excavation of earth as described in claim 1, characterized in that: It also includes a brake pad to prevent the spool from reversing. The brake pad is located on the side near the hand crank handle. The lower end of the brake pad is connected to a rotating shaft. The two ends of the rotating shaft are respectively rotatably installed in the mounting holes provided on the corresponding side fixing base. The fixing base is fixed to the top of the support frame. A plurality of limiting slots are provided on the circular baffle on the side near the hand crank handle. The limiting slots cooperate with the brake pad.

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