Simple manpower soil lifting device for shaft foundation pit

Abstract

This utility model relates to the field of power infrastructure engineering technology and discloses a simple manual soil lifting device for vertical shaft foundation pits. The novel solution includes a rope storage reel with Dyneema rope fixedly wound around its outer side. A cable guide is placed below the rope storage reel, and the end of the Dyneema rope furthest from the rope storage reel passes through the cable guide and is connected to a single pulley hook. This utility model improves rope storage efficiency by using a 1:3 transmission ratio between the driving gear and the driven gear. The single pulley hook, used as a movable pulley, saves half the pulling force, thereby reducing the worker's hand strain and improving soil lifting efficiency. A ratchet gear and anti-reverse buckle form the first safety line. During soil lifting, the anti-reverse buckle is always engaged with the ratchet gear under the double rebound force of the rebound spring and the assist spring, eliminating the risk of the rope storage reel falling due to accidental reversal. Simultaneously, the handle and driving gear are equipped with fly gear bearings to prevent accidental injury to the user from handle reversal, ensuring the safety of the device.

Description

Technical Field

[0001] This utility model belongs to the field of power infrastructure engineering technology, specifically a simple manual soil lifting device for vertical shaft foundation pits. Background Technology

[0002] In power infrastructure projects in remote mountainous areas and plateaus, the excavation of tower foundation pits (shafts) requires lifting soil and rock from pits ≤15 meters deep to the surface. Traditional manual soil lifting is inefficient and dangerous, while mechanical equipment is limited by terrain, cost, and energy supply. Therefore, we propose a simple manual soil lifting device for shaft foundation pits. Utility Model Content

[0003] The purpose of this utility model is to provide a simple manual soil lifting device for vertical shaft foundation pits to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a simple manual soil lifting device for vertical shaft foundation pits, comprising a rope storage reel, with Dyneema rope fixedly wound around the outer side of the rope storage reel, a cable guide placed below the rope storage reel, the end of the Dyneema rope away from the rope storage reel passing through the cable guide and connected to a single pulley hook, a driven gear, a ratchet gear, and a brake disc installed on the front side of the rope storage reel, a driving gear meshing at the bottom of the driven gear, the transmission ratio of the driven gear to the driving gear being 3:1, an anti-reverse buckle meshing on the left side of the ratchet gear, an anti-reverse braking linkage rod connected to the left side of the anti-reverse buckle via a hinge, a rebound spring provided between the anti-reverse buckle and the anti-reverse braking linkage rod, an assist spring provided at the bottom of the anti-reverse braking linkage rod, and an anti-reverse braking brake pedal installed on the outer side of the anti-reverse braking linkage rod, a brake device installed at the bottom of the brake disc, and a brake cable connected to the outer side of the pull end of the brake device.

[0005] Preferably, a support frame is installed on the outer side of the rope storage tray, and a set of first through holes are opened on both the front and rear sides of the inner sidewall of the support frame. A set of first rotating shafts are fixedly installed on both the front and rear sides of the rope storage tray. The first rotating shafts are rotatably installed in the first through holes through bearings. The anti-reverse buckle is installed on the front side of the support frame through a third rotating shaft.

[0006] Preferably, the first rotating shaft located on the front side of the rope storage tray passes through the first through hole opened on the front side of the support frame and is connected to the driven gear, ratchet gear and brake disc. A slot is opened on the outer side of the first rotating shaft located on the front side of the rope storage tray. The front sides of the driven gear, ratchet gear and brake disc are all provided with second through holes, and a locking block is provided in the second through hole. The first rotating shaft located on the front side of the rope storage tray passes through the second through hole, and the locking block is set in the slot.

[0007] Preferably, a protective cover is fixedly installed on the top outer side of the support frame by bolts, a bracket is installed on the front side of the support frame, the drive gear is rotatably disposed between the support frame and the bracket via a second rotating shaft, the front side of the second rotating shaft on the outer side of the drive gear passes through the front side of the protective cover and is connected to a handle, a fly gear bearing is installed between the second rotating shaft and the handle, and the brake is fixedly disposed between the bracket and the support frame.

[0008] Preferably, the assist spring is located at the bottom of the support frame, the anti-reverse braking linkage rod is located at the front of the support frame, and a set of detachable support frame connectors are fixed to both the left and right sides of the support frame by bolts.

[0009] Preferably, the front side of the support frame is provided with brake line adjustment holes evenly spaced. The side of the brake line away from the brake passes through the brake line adjustment holes and is connected to the anti-reverse brake linkage rod. A fourth rotating shaft is installed on the outer side of the anti-reverse brake pedal. The fourth rotating shaft is connected to the anti-reverse brake linkage rod. A bearing seat is sleeved on the outer side of the fourth rotating shaft. The bearing seat is fixedly installed on the front side of the inner wall of the support frame.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: by adopting a transmission ratio of 1:3 between the driving gear and the driven gear, the efficiency of rope storage is improved; when used in conjunction with a single pulley hook as a movable pulley, the pulling force can be reduced by half, thereby reducing the labor burden on workers' hands and improving the efficiency of soil lifting; the ratchet and anti-reverse buckle form the first line of defense, and when lifting soil, the anti-reverse buckle is always engaged with the ratchet teeth under the double rebound force of the rebound spring and the assist spring, eliminating the risk of falling due to accidental reversal of the rope storage reel; the brake disc and brake form the second braking guarantee, and when falling, stepping on the brake pedal can quickly grip the brake disc to decelerate and prevent the soil bucket from falling rapidly due to its own weight.

[0011] By using a fly gear bearing to connect the handle and the drive gear, the handle can remain stationary and not rotate when the rope reel reverses, causing the drive gear to reverse, thus completely avoiding the risk of the handle rotating in the opposite direction and injuring workers. The brake cable is connected through a multi-position adjustment hole, which can flexibly adjust the brake sensitivity according to the operating habits, improving operating comfort. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the simple manual soil lifting device for vertical shaft foundation pits according to this utility model; Figure 2This is a schematic diagram of the internal structure of the simple manual soil lifting device for vertical shaft foundation pits according to this utility model; Figure 3 This is a schematic diagram showing the cooperation between the brake disc, brake cable, and brake unit in this utility model; Figure 4 This is a schematic diagram showing the cooperation of the anti-reverse braking linkage rod, the anti-reverse buckle, and the ratchet in this utility model; Figure 5 This is a schematic diagram showing the engagement of the driving gear and the driven gear in this utility model; Figure 6 This is a schematic diagram of the structure of the flying gear bearing of this utility model.

[0014] In the diagram: 1. Anti-reverse brake pedal; 2. Power assist spring; 3. Anti-reverse brake linkage rod; 4. Detachable support frame connector; 5. Handle; 6. Drive gear; 7. Brake cable adjustment hole; 8. Brake cable; 9. Anti-reverse buckle; 10. Rebound spring; 11. Driven gear; 12. Rope storage tray; 13. Brake disc; 14. Ratchet; 16. Cable guide; 17. Brake; 19. Fly gear bearing; 21. Dyneema rope; 22. Single pulley hook; 23. Support frame; 24. Protective cover. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6 A simple manual soil-lifting device for vertical shaft foundation pits includes a rope storage tray 12. A Dyneema rope 21 is fixedly wound around the outside of the rope storage tray 12. A cable guide 16 is placed below the rope storage tray 12. The end of the Dyneema rope 21 furthest from the rope storage tray 12 passes through the cable guide 16 and is connected to a single pulley hook 22. A driven gear 11, a ratchet 14, and a brake disc 13 are installed on the front side of the rope storage tray 12. A driving gear 6 meshes with the bottom of the driven gear 11. The transmission between the driven gear 11 and the driving gear 6... The gear ratio is 3:1. The left side of the ratchet 14 is engaged with an anti-reverse buckle 9. The left side of the anti-reverse buckle 9 is connected to an anti-reverse brake linkage rod 3 via a hinge. A rebound spring 10 is fixedly installed between the anti-reverse buckle 9 and the anti-reverse brake linkage rod 3. A booster spring 2 is fixedly installed at the bottom of the anti-reverse brake linkage rod 3. An anti-reverse brake pedal 1 is installed on the outside of the anti-reverse brake linkage rod 3. A brake caliper 17 is installed at the bottom of the brake disc 13. A brake cable 8 is connected to the outside of the pull cable end of the brake caliper 17.

[0017] A support frame 23 is installed on the outer side of the rope storage tray 12. A set of first through holes is opened on both the front and rear sides of the inner sidewall of the support frame 23. A set of first rotating shafts is fixedly installed on both the front and rear sides of the rope storage tray 12. The first rotating shafts are rotatably mounted in the first through holes via bearings. An anti-reverse buckle 9 is rotatably mounted on the front side of the support frame 23 via a third rotating shaft. The first rotating shaft located on the front side of the rope storage tray 12 passes through the first through hole on the front side of the support frame 23 and is connected to the driven gear 11, ratchet 14, and brake disc 13. A slot is opened on the outer side of the first rotating shaft located on the front side of the rope storage tray 12. A second through hole is opened on the front side of the driven gear 11, ratchet 14, and brake disc 13, and a locking block is fixedly installed in the second through hole. The first rotating shaft located on the front side of the rope storage tray 12 passes through the second through hole. The locking block is slidably set in the locking slot, so that when the driven gear 11 rotates, it will drive the first rotating shaft on the rope storage tray 12 to rotate through the locking block on the inner side of the driven gear 11, thereby driving the rope storage tray 12 to rotate. Thus, the first rotating shaft on the rope storage tray 12 drives the ratchet 14 and the brake disc 13 to rotate synchronously through the locking block on the inner side of the ratchet 14 and the brake disc 13. The top outer side of the support frame 23 is fixedly installed with a protective cover 24 by bolts. A bracket is installed on the front side of the support frame 23. The driving gear 6 is rotatably set between the support frame 23 and the bracket through the second rotating shaft. The front side of the second rotating shaft outside the driving gear 6 passes through the front side of the protective cover 24 and is connected to the handle 5. A fly gear bearing 19 is installed between the second rotating shaft and the handle 5. The brake 17 is fixedly set between the bracket and the support frame 23.

[0018] The assist spring 2 is fixedly installed at the bottom of the support frame 23. The anti-reverse brake linkage rod 3 is located on the front side of the support frame 23. A set of detachable support frame connectors 4 are fixedly installed on both the left and right sides of the support frame 23 by bolts. Brake cable adjustment holes 7 are evenly opened through the front side of the support frame 23. The side of the brake cable 8 away from the brake 17 passes through the brake cable adjustment hole 7 and is connected to the anti-reverse brake linkage rod 3. A fourth rotating shaft is installed on the outside of the anti-reverse brake pedal 1. The fourth rotating shaft is connected to the anti-reverse brake linkage rod 3. A bearing seat is sleeved on the outside of the fourth rotating shaft. The bearing seat is fixedly installed on the front side of the inner wall of the support frame 23.

[0019] Working principle: The bucket filled with soil is suspended on the single pulley hook 22. Turning the handle 5 drives the drive gear 6 through the fly gear bearing 19, which in turn drives the driven gear 11. Since the transmission ratio of the drive gear 6 to the driven gear 11 is 1:3, the drive gear 6 can drive the driven gear 11 to rotate rapidly. The driven gear 11 drives the rope storage reel 12 to rotate, thereby winding up the Dyneema rope 21. This causes the single pulley hook 22 to move upward to lift the soil. The single pulley hook 22, acting as a movable pulley, saves half the effort of turning the handle 5. When the rope storage reel 12 rotates, it drives the brake disc 13 and ratchet 14 to rotate. When the ratchet 14 rotates, it causes the anti-reverse buckle 9 to jump outside the ratchet 14 teeth. During the jumping of the anti-reverse buckle 9, the assist spring 2 uses its own rebound force to drive the anti-reverse buckle 9 to automatically reset and engage with the ratchet 14 teeth through the anti-reverse brake linkage rod 3. At the same time, the rebound spring 1... The anti-reverse buckle 9 automatically resets and engages with the ratchet 14 using its own rebound force. When the soil-filled bucket needs to be lowered, the anti-reverse brake pedal 1 is lightly pressed to pull the anti-reverse brake linkage rod 3, which pulls the anti-reverse buckle 9 away from the ratchet 14, unlocking the ratchet 14. At this time, the soil-filled bucket will move downwards by its own weight, causing the rope storage tray 12 to reverse. The rope storage tray 12 then causes the brake disc 13 to reverse. By pressing the anti-reverse brake pedal 1 firmly, the anti-reverse brake linkage rod 3 pulls the pull end of the brake 17 through the brake cable 8, thereby causing the brake 17 to hold the brake disc 13 tightly, thus braking and slowing down the rope storage tray 12, preventing the soil-filled bucket from falling rapidly. When the rope storage tray 12 reverses, it will drive the driving gear 6 to reverse through the driven gear 11. At this time, the worker can hold the handle 5 and use the fly gear bearing 19 to prevent the handle 5 from rotating with the driving gear 6, thus preventing the handle 5 from reversing and injuring the worker.

Claims

1. A simple and easy device for manually lifting earth from a shaft foundation pit, characterized in that, The system includes a rope storage reel (12), with Dyneema rope (21) fixedly wound around its outer side. A cable guide (16) is placed below the rope storage reel (12). One end of the Dyneema rope (21) away from the rope storage reel (12) passes through the cable guide (16) and is connected to a single pulley hook (22). A driven gear (11), a ratchet (14), and a brake disc (13) are installed on the front side of the rope storage reel (12). A driving gear (6) meshes with the bottom of the driven gear (11). The transmission ratio between the driven gear (11) and the driving gear (6) is [value missing]. 3:1, the left side of the ratchet (14) is engaged with an anti-reverse buckle (9), the left side of the anti-reverse buckle (9) is connected to an anti-reverse brake linkage rod (3) via a hinge, a rebound spring (10) is provided between the anti-reverse buckle (9) and the anti-reverse brake linkage rod (3), a booster spring (2) is provided at the bottom of the anti-reverse brake linkage rod (3), and an anti-reverse brake pedal (1) is installed on the outside of the anti-reverse brake linkage rod (3). A brake (17) is installed at the bottom of the brake disc (13), and a brake cable (8) is connected to the outside of the pull end of the brake (17).

2. The simple manual soil-lifting device for vertical shaft foundation pits according to claim 1, characterized in that: A support frame (23) is installed on the outside of the rope storage tray (12). A set of first through holes are opened on both the front and rear sides of the inner sidewall of the support frame (23). A set of first rotating shafts are fixedly installed on both the front and rear sides of the rope storage tray (12). The first rotating shafts are rotatably installed in the first through holes through bearings. The anti-reverse buckle (9) is installed on the front side of the support frame (23) through a third rotating shaft.

3. The simple manual soil-lifting device for vertical shaft foundation pits according to claim 2, characterized in that: The first rotating shaft located on the front side of the rope storage tray (12) passes through the first through hole opened on the front side of the support frame (23) and is connected to the driven gear (11), ratchet (14) and brake disc (13). A slot is opened on the outer side of the first rotating shaft located on the front side of the rope storage tray (12). The front sides of the driven gear (11), ratchet (14) and brake disc (13) are all provided with a second through hole, and a locking block is provided in the second through hole. The first rotating shaft located on the front side of the rope storage tray (12) passes through the second through hole, and the locking block is set in the slot.

4. The simple manual soil lifting device for vertical shaft foundation pits according to claim 3, characterized in that: A protective cover (24) is fixedly installed on the top outer side of the support frame (23) by bolts. A bracket is installed on the front side of the support frame (23). The drive gear (6) is rotatably disposed between the support frame (23) and the bracket via a second rotating shaft. The front side of the second rotating shaft on the outside of the drive gear (6) passes through the front side of the protective cover (24) and is connected to a handle (5). A fly gear bearing (19) is installed between the second rotating shaft and the handle (5). The brake (17) is fixedly disposed between the bracket and the support frame (23).

5. The simple manual soil-lifting device for vertical shaft foundation pits according to claim 4, characterized in that: The assist spring (2) is located at the bottom of the support frame (23), the anti-reverse braking linkage rod (3) is located on the front side of the support frame (23), and a set of detachable support frame connectors (4) are fixed on both the left and right sides of the support frame (23) by bolts.

6. The simple manual soil-lifting device for vertical shaft foundation pits according to claim 5, characterized in that: Brake line adjustment holes (7) are evenly distributed on the front side of the support frame (23). The side of the brake line (8) away from the brake (17) passes through the brake line adjustment holes (7) and is connected to the anti-reverse brake linkage rod (3). A fourth rotating shaft is installed on the outside of the anti-reverse brake pedal (1). The fourth rotating shaft is connected to the anti-reverse brake linkage rod (3). A bearing seat is sleeved on the outside of the fourth rotating shaft. The bearing seat is fixedly installed on the front side of the inner wall of the support frame (23).

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