Pedal type emergency water pump device

Abstract

The utility model discloses a pedal type emergency water pump device. Belongs to the technical field of emergency water pumps. According to the technical key points, the device comprises a support, a folding frame is arranged at the front end of the support, a hydraulic pump is detachably arranged on the folding frame, and the hydraulic pump comprises a piston. A driving wheel is arranged on the support close to the hydraulic pump through a rotating shaft, a detachable driving rod is eccentrically connected to the driving wheel, and the free end of the driving rod is hinged to the outer end of the piston; a pedal rotating assembly connected with the rotating shaft is arranged on the bracket; the utility model aims to provide the pedal type emergency water pump device which is simple in structure and convenient to carry and use; the device is used for emergency water pumping in a power-free environment.

Description

Technical Field

[0001] This utility model relates to a water pump device, and more specifically, to a foot-operated emergency water pump device. Background Technology

[0002] Currently, commonly used water pumps on the market, such as centrifugal pumps and axial flow pumps, require generators to operate normally in the event of a power outage or in outdoor environments lacking power. This results in large overall equipment size, difficulty in transportation, and high costs.

[0003] Therefore, a manual water pump is needed to deal with such situations. Currently, manual water pumps on the market include hand-cranked and foot-operated pumps. Compared with foot-operated pumps, hand-cranked pumps have a lower pumping frequency and slower pumping speed, and the operator is more likely to feel tired. Foot-operated pumps are usually larger and difficult to store and carry. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the prior art by providing a foot-operated emergency water pump device that is simple in structure, easy to carry, and convenient to use.

[0005] The technical solution of this utility model is implemented as follows: A foot-operated emergency water pump device includes a bracket, a folding frame at the front end of the bracket, and a hydraulic pump detachably mounted on the folding frame. The hydraulic pump includes a piston. A drive wheel is mounted on the bracket near the hydraulic pump via a rotating shaft, and a detachable drive rod is eccentrically connected to the drive wheel. The free end of the drive rod is hinged to the outer end of the piston. A foot-operated rotating assembly connected to the rotating shaft is provided on the bracket.

[0006] In the aforementioned foot-operated emergency water pump device, the hydraulic pump includes a hydraulic cylinder, and the piston is movably disposed inside the hydraulic cylinder; an inlet connector and an outlet connector for connecting to an external water pipe are connected to the hydraulic cylinder via flanges, an inlet check valve is provided in the inlet connector, and an outlet check valve is provided in the outlet connector.

[0007] In the aforementioned foot-operated emergency water pump device, the foot-operated rotating assembly includes a small sprocket mounted on a rotating shaft, a large sprocket mounted on a bracket on one side of the small sprocket, and the small sprocket and the large sprocket connected by a chain; a foot pedal lever is mounted on the large sprocket.

[0008] In the aforementioned foot-operated emergency water pump device, a lifting seat is provided on the bracket above the large sprocket, and a hand handle is provided on the bracket.

[0009] In the aforementioned foot-operated emergency water pump device, the small sprocket and the rotating shaft are connected by a flywheel structure.

[0010] In the aforementioned foot-operated emergency water pump device, the folding frame includes a hinge seat located at the front end of the support, a mounting rod in the shape of a "﹁" hinged to the hinge seat, and a mounting hoop for mounting a hydraulic cylinder at the free end of the mounting rod; a one-way limiting component is provided between the mounting rod and the support.

[0011] In the aforementioned foot-operated emergency water pump device, the one-way limiting component includes a limiting plate disposed at the hinge end of the mounting rod and cooperating with the side wall of the bracket, a positioning hole provided on the side wall of the bracket, and a pin detachably disposed in the positioning hole; a first through hole corresponding to the positioning hole is provided at the near end of the limiting plate, and a second through hole corresponding to the positioning hole is provided on the mounting rod.

[0012] When the mounting rod is in the open state, the first through hole mates with the positioning hole; when the mounting rod is in the folded state, the second through hole mates with the positioning hole.

[0013] With the above-described structure, this invention effectively ensures the pumping frequency and sufficient pumping speed by using a foot-operated rotating assembly to drive the hydraulic pump. Folding the frame effectively shortens the support length, facilitating storage when not in use. Furthermore, the detachable hydraulic pump mounted on the folding frame further reduces the overall size, making it easy to carry. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

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

[0016] Figure 2 This is a structural schematic diagram of the bracket of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the foot pedal rotation assembly of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the folding frame of this utility model.

[0019] In the diagram: 1. Bracket; 2. Folding frame; 2a. Hinge seat; 2b. Mounting rod; 2c. Mounting hoop; 3. Hydraulic pump; 3a. Hydraulic cylinder; 3b. Inlet connector; 3c. Outlet connector; 3d. Inlet check valve; 3e. Outlet check valve; 4. Piston; 5. Shaft; 6. Drive wheel; 7. Drive rod; 8. Foot pedal rotating assembly; 8a. Small sprocket; 8b. Large sprocket; 8c. Chain; 8d. Foot pedal rocker arm; 9. Adjustable seat; 10. Handrail; 11. One-way limit assembly; 11a. Limiting plate; 11b. Positioning hole; 11c. Pin; 11d. First through hole; 11e. Second through hole. Detailed Implementation

[0020] See Figure 1-4 As shown, this utility model discloses a foot-operated emergency water pump device, comprising a bracket 1. The bracket 1 has a folding frame 2 at its front end, on which a hydraulic pump 3 is detachably mounted. The hydraulic pump 3 includes a piston 4. A drive wheel 6 is mounted on the bracket 1 near the hydraulic pump 3 via a rotating shaft 5. A detachable drive rod 7 is eccentrically connected to the drive wheel 6, with its free end hinged to the outer end of the piston 4. A foot-operated rotating assembly 8 connected to the rotating shaft 5 is also provided on the bracket 1. Using a foot-operated rotating assembly to drive the hydraulic pump effectively ensures the pumping frequency and sufficient pumping speed. Folding the frame effectively shortens the bracket length, facilitating storage when not in use. Furthermore, the detachable mounting of the hydraulic pump on the folding frame further reduces the overall size, making it easy to carry.

[0021] The drive rod is fixed to the drive wheel with quick-release screws, which facilitates disconnection so that the hydraulic pump can be folded along with the folding frame or removed.

[0022] The support frame has triangular support legs at the bottom, and a base plate at the bottom of the triangular support legs. These structures can increase the support strength of the support frame and improve its stability.

[0023] In this embodiment, the hydraulic pump 3 includes a hydraulic cylinder 3a, and the piston 4 is movably disposed within the hydraulic cylinder 3a. An inlet connector 3b and an outlet connector 3c, connected to an external water pipe, are connected to the hydraulic cylinder 3a via flanges. An inlet check valve 3d is provided within the inlet connector 3b, and an outlet check valve 3e is provided within the outlet connector 3c. The hydraulic cylinder is in a vacuum environment. When the piston moves outward along the hydraulic cylinder, the volume increases, and the water flow pushes open the inlet check valve to enter the hydraulic cylinder. When the piston moves inward along the hydraulic cylinder, the volume decreases, and the water flow pushes open the outlet check valve to discharge from the hydraulic cylinder.

[0024] In this embodiment, preferably, the foot pedal rotating assembly 8 includes a small sprocket 8a mounted on a rotating shaft 5, and a large sprocket 8b mounted on a bracket 1 on one side of the small sprocket 8a. The small sprocket 8a and the large sprocket 8b are connected by a chain 8c. A foot pedal lever 8d is mounted on the large sprocket 8b. The diameter of the large sprocket is at least twice the diameter of the small sprocket. When the large sprocket is rotated one revolution by the foot pedal lever, the small sprocket rotates at least two revolutions, effectively improving pumping efficiency while reducing the workload of pedaling.

[0025] Preferably, a lifting seat 9 is provided on the bracket 1 above the large sprocket 8b, and a handrail 10 is provided on the bracket 1. The lifting seat and handrail facilitate the use of the operator and ensure stability and comfort when stepping on the pedals.

[0026] Meanwhile, the hand handle can be hinged to the bracket to form a foldable structure, which is convenient for storage and avoids the hand handle taking up too much space.

[0027] More preferably, the small sprocket 8a and the rotating shaft 5 are connected by a flywheel structure. When pedaling stops, the small sprocket stops rotating. The flywheel structure allows the rotating shaft to continue rotating after the small sprocket stops, so that the drive wheel continues to move the piston to pump water. This saves the operator's energy and prevents damage caused by sudden stops.

[0028] In this embodiment, the folding frame 2 includes a hinge seat 2a disposed at the front end of the support 1, a mounting rod 2b in the shape of a "﹁" hinged to the hinge seat 2a, and a mounting ring 2c for mounting the hydraulic cylinder 3a is provided at the free end of the mounting rod 2b; a one-way limiting component 11 is provided between the mounting rod 2b and the support 1. The mounting ring facilitates quick assembly and disassembly of the hydraulic cylinder.

[0029] More preferably, the unidirectional limiting assembly 11 includes a limiting plate 11a disposed at the hinge end of the mounting rod 2b and cooperating with the side wall of the bracket 1. A positioning hole 11b is provided on the side wall of the bracket 1, and a pin 11c is detachably disposed within the positioning hole 11b. A first through hole 11d corresponding to the positioning hole 11b is provided near the end of the limiting plate 11a, and a second through hole 11e corresponding to the positioning hole 11b is provided on the mounting rod 2b. The limiting plate restricts the rotation angle of the mounting rod, allowing it to quickly rotate to be aligned with the bracket for engagement, and the pin quickly completes the fixing.

[0030] When the mounting rod 2b is in the open state, the first through hole 11d engages with the positioning hole 11b; when the mounting rod 2b is in the folded state, the second through hole 11e engages with the positioning hole 11b. The mounting rod is fixed in the folded state through the second through hole to prevent it from rotating and opening during movement.

[0031] When in use, first place the bracket on the side of the water source, open the mounting rod and fix it with the pin, fix the hydraulic cylinder on the mounting ring, and connect the corresponding water pipes to the inlet and outlet connectors. The operator sits on the lifting seat and steps on the foot pedal to start pumping water.

[0032] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A foot-operated emergency water pump device, comprising a support frame (1), characterized in that, The bracket (1) has a folding frame (2) at its front end, and a hydraulic pump (3) is detachably mounted on the folding frame (2). The hydraulic pump (3) includes a piston (4). A drive wheel (6) is mounted on the bracket (1) near the hydraulic pump (3) via a rotating shaft (5). A detachable drive rod (7) is eccentrically connected to the drive wheel (6). The free end of the drive rod (7) is hinged to the outer end of the piston (4). A foot pedal rotating assembly (8) connected to the rotating shaft (5) is mounted on the bracket (1).

2. The foot-operated emergency water pump device according to claim 1, characterized in that, The hydraulic pump (3) includes a hydraulic cylinder (3a), and the piston (4) is movably disposed inside the hydraulic cylinder (3a). A water inlet connector (3b) and a water outlet connector (3c) connected to an external water pipe are connected to the hydraulic cylinder (3a) via flanges. A water inlet check valve (3d) is provided inside the water inlet connector (3b), and a water outlet check valve (3e) is provided inside the water outlet connector (3c).

3. The foot-operated emergency water pump device according to claim 1, characterized in that, The foot pedal rotating assembly (8) includes a small sprocket (8a) mounted on a rotating shaft (5), a large sprocket (8b) mounted on a bracket (1) on one side of the small sprocket (8a), and the small sprocket (8a) and the large sprocket (8b) are connected by a chain (8c); a foot pedal rocker arm (8d) is mounted on the large sprocket (8b).

4. A foot-operated emergency water pump device according to claim 3, characterized in that, A lifting seat (9) is provided on the bracket (1) above the large sprocket (8b), and a hand handle (10) is provided on the bracket (1).

5. A foot-operated emergency water pump device according to claim 3, characterized in that, The small sprocket (8a) is connected to the shaft (5) by a flywheel structure.

6. A foot-operated emergency water pump device according to claim 1, characterized in that, The folding frame (2) includes a hinge seat (2a) at the front end of the bracket (1), a mounting rod (2b) in the shape of "﹁" is hinged on the hinge seat (2a), and a mounting ring (2c) for mounting a hydraulic cylinder (3a) is provided at the free end of the mounting rod (2b); a one-way limiting component (11) is provided between the mounting rod (2b) and the bracket (1).

7. A foot-operated emergency water pump device according to claim 6, characterized in that, The one-way limiting assembly (11) includes a limiting plate (11a) disposed at the hinge end of the mounting rod (2b) and cooperating with the side wall of the bracket (1). A positioning hole (11b) is provided on the side wall of the bracket (1), and a pin (11c) is detachably provided in the positioning hole (11b). A first through hole (11d) corresponding to the positioning hole (11b) is provided at the near end of the limiting plate (11a), and a second through hole (11e) corresponding to the positioning hole (11b) is provided on the mounting rod (2b). When the mounting rod (2b) is in the open state, the first through hole (11d) engages with the positioning hole (11b); when the mounting rod (2b) is in the folded state, the second through hole (11e) engages with the positioning hole (11b).

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