Novel hand-cranking drainage device for amphibious vehicle

Abstract

The novel hand-cranking drainage device for the amphibious vehicle comprises a pump body, a shaft disc, an end cover, a hand-cranking handle and a fixing base, the shaft disc is fixedly installed at one end of the pump body, and the end cover is fixed to the other end of the pump body; an input shaft of a rotor in the pump body penetrates through a shaft disc and is connected with one end of a crank handle; the outer wall of the rotor is tangent to the inner wall of the pump body; the rotor is provided with a rotor groove, the rotor groove is arranged along the diameter of the rotor, and two rotary vanes with springs are arranged in the rotor groove; an inner cavity of the pump body is divided into three cavity gaps by the rotary vane and the rotor; and a water inlet pipe and a water outlet pipe communicated with the inner cavity are arranged on the pump body. The device is simple in structure, small in size, light in weight and high in drainage efficiency; due to the fact that no mechanical structure with complex tasks exists, faults are not prone to occurring in the using process, maintenance is not needed in the equipment using process after anti-corrosion treatment is conducted, and the service life is long.

Description

Technical Field

[0001] The invention belongs to the technical field of amphibious vehicles, and in particular relates to an artificial manual drainage device in a vehicle. Background Art

[0002] When an amphibious vehicle is sailing on the water, water may leak into the vehicle due to improper operation, poor sealing, or vehicle damage, especially continuous water inflow, which affects the safety of the amphibious vehicle's navigation on the water. On the premise that the vehicle is already equipped with an electric drainage pump, a downgraded drainage device is provided to manually drain the accumulated water from the vehicle to ensure the vehicle's safety on the water.

[0003] The hand-cranked drainage device currently used on amphibious vehicles is a marine hand-cranked pump, model CS-40, with a displacement of 1.577 tons and a structure of a plunger-type hand-cranked drainage device, which discharges the accumulated water in the vehicle out of the vehicle through the reciprocating operation of pulling and pressing the handle.

[0004] The CS-40 hand pump is very heavy, weighing 11kg. It is difficult to install and has high transportation costs. At the same time, the newly developed equipment requires lightweight design of vehicle components, which cannot meet the weight index requirements of amphibious equipment.

[0005] The CS-40 hand pump is very large, with dimensions of 510mmX262mmX220mm. In addition, the operating handle is 520mm long and requires reciprocating motion, making it very difficult to install in a vehicle.

[0006] The CS-40 hand pump has low drainage efficiency. The reciprocating operating force of the plunger pump is 50N. The operation adopts the reciprocating motion of the handle, and it needs to be repeated 60 times per minute to reach the flow requirement of 60L / min. The efficiency is low and the operability is seriously affected. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a new hand-cranked drainage device for amphibious vehicles which is light in weight, small in size, easy to operate, and can meet the requirements of reliability, maintainability, safety and environmental adaptability of amphibious vehicles.

[0008] The technical solution adopted by the present invention is: a new type of hand-cranked drainage device for amphibious vehicles, including a pump body, a shaft disc, an end cover, a hand crank and a fixing seat, the shaft disc is fixedly installed at one end of the pump body, and the end cover is fixed at the other end of the pump body; the input shaft of the rotor in the pump body passes through the shaft disc and is connected to one end of the hand crank, and the outer wall of the rotor is tangent to the inner wall of the pump body; a rotor groove is provided on the rotor, and the rotor groove is arranged along the diameter of the rotor, and two rotors with springs are installed in the rotor groove; the rotor and the rotor together divide the inner cavity of the pump body into three cavities; the pump body is provided with a water inlet pipe and a water outlet pipe connected to the inner cavity.

[0009] Furthermore, it also includes a fixing seat, and the pump body is fixedly mounted on the fixing seat, and the fixing seat is coaxial with the pump body.

[0010] Furthermore, the pump body and the fixing seat are of a circular pipe pile structure, and connecting flanges are respectively provided at both ends of the fixing seat. One end of the pump body mounting end cover is connected to one end of the fixing seat, and the end cover is located inside the fixing seat.

[0011] Furthermore, the rotor and the shaft disc are made of SUS304 stainless steel material.

[0012] Furthermore, the water inlet pipe and the water outlet pipe are made of SUS304 stainless steel; the inner diameter of the water inlet pipe is 28mm to reduce water outlet resistance, and the inner diameter of the water outlet pipe is 38mm.

[0013] Furthermore, the rotary vane is made of SUS304 stainless steel.

[0014] Furthermore, the shaft disc is made of SUS304 stainless steel material by die-casting; and the fixing seat is made of cast aluminum material.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has a simple structure. Since it does not have a complicated mechanical structure, it is not easy to fail during use. After anti-corrosion treatment, it does not require maintenance during use and has a long service life, which can basically be the same as the life of the entire vehicle.

[0016] 2. The present invention is light in weight and small in size: the pump body and the water inlet and outlet pipes are integrally formed, and the interior is a volume chamber, in which the eccentric rotor and the vane rotate to discharge the water. The volume is reduced from 510mm×262mm×220mm to 150mm×200mm×100mm, a reduction of 89%, and the weight is reduced from 12kg to 3.6kg, a reduction of 70%.

[0017] 3. The drainage efficiency of the present invention is high: the flow rate can reach 50L / min, the hand crank speed is 50-70r / min, and the pumping depth can reach 2.5m.

[0018] 4. The present invention has strong environmental adaptability: the new hand-cranked drainage device can adapt to a variety of different media, and can withstand media of different viscosities, and can adapt to different temperature and pressure environments. It can better meet the discharge of different media such as diesel, engine oil, seawater, etc. of amphibious armored vehicles, and at the same time adapt to the requirements of -43 degrees Celsius environment. It can be widely used in amphibious vehicles with floating and water driving functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of viewing angle 1 of the present invention.

[0020] Figure 2 It is a stereoscopic diagram of viewing angle 2 of the present invention.

[0021] Figure 3 It is a structural diagram of the pump body installation of the present invention.

[0022] Figure 4 This is a diagram of the rotor structure of the present invention.

[0023] Figure 5 It is a structural diagram of the shaft disc of the present invention.

[0024] Figure 6 It is a three-dimensional view of the end cover of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-6 As shown, the present invention includes a pump body 1, a rotor 2, a shaft disc 3, an end cover 8, a water inlet pipe 7, a water outlet pipe 4, a hand crank 5 and a fixing seat 6.

[0027] The pump body 1 and the fixing seat 6 are of a circular pipe pile structure, and connecting flanges are provided at both ends of the fixing seat 6. The shaft disc 3 is fixedly mounted at one end of the pump body 1. The fixing seat 6 and the end cover 8 are fixedly mounted at the other end of the pump body 1, and the end cover 8 is located inside the fixing seat 6. The input shaft of the rotor 2 in the pump body 1 passes through the shaft disc 3 and is connected to one end of the hand crank 5, and the outer wall of the rotor 2 is tangent to the inner wall of the pump body 1. A rotor groove 21 is provided on the rotor 2, and the rotor groove 21 is arranged along the diameter of the rotor. Two rotors 22 are installed in the rotor groove 21, and the opposite ends of the two rotors 22 are connected by a spring 23, and the spring 23 makes the opposite ends of the two rotors 22 press against the inner wall of the pump body 1. The rotors 22 and the rotor 2 together divide the inner cavity of the pump body into three cavities; the pump body 1 is provided with a water inlet pipe 7 and a water outlet pipe 4 connected to the inner cavity.

[0028] The rotor 2 is made of SUS304 stainless steel. The water inlet pipe 7 and the water outlet pipe 4 are made of SUS304 stainless steel. The vane 22 is made of SUS304 stainless steel. The hand crank 5 is shaken to rotate the rotor 2 and the vane 22. The centrifugal force and the tension of the spring 23 keep the top of the vane 22 in contact with the inner wall of the pump chamber. The rotation of the rotor 2 drives the vane 22 to slide along the inner wall of the pump chamber. The vane 22 and the rotor 2 divide the inner cavity of the pump body into three cavities, in which the rotor 2 and the vane 22 rotate. The pressure in different areas is different, forming the water absorption and drainage functions.

[0029] The shaft disc 3 is made of SUS304 high-quality stainless steel material and is formed by die casting. The shaft disc adopts a lightweight design and the body thickness is 5mm. To ensure the rigidity of the shaft disc, 5 4mmX5mm ribs are added to the outer surface of the body. The shaft disc 3 is connected to the pump body 1 with 5 M6 stainless steel bolts. Since the shaft disc 3 should not be disassembled, the fixing bolts need to be coated with anaerobic fastener to ensure that the bolts do not loosen. A rubber pad needs to be used to seal the shaft disc 3 and the pump body 1, and a flat sealant should be applied to ensure effective sealing between the shaft disc and the pump body, so that vacuum can be ensured when the rotor rotates, and water can be effectively absorbed.

[0030] The hand crank 5 is composed of a handle body and a crank handle. The handle body is made of a metal-based composite material, which has excellent physical properties such as rigidity, elasticity, corrosion resistance, and anti-aging performance. The handle body is formed by extrusion of a mold. The crank handle is made of a glass fiber composite material, which also has the characteristics of corrosion resistance, anti-aging, high strength, etc., and adopts an ergonomic design, which is easy to hold and rotate. At the same time, the handle can be folded. When the hand crank rotary drainage device is not in use, the handle can be folded and put away, which can reduce the space occupied and improve the space utilization rate in the vehicle.

[0031] To ensure water absorption efficiency, the inner diameter of the water inlet pipe 7 is 28mm to reduce water discharge resistance, and the inner diameter of the water outlet pipe 4 is 38mm. Flanges are installed on the water inlet pipe and the water outlet pipe to ensure that the hand-cranked rotary drainage device can be directly replaced without adjusting the pipeline, mounting seat and position in the vehicle.

[0032] The fixing seat 6 is made of cast aluminum material, which has the characteristics of light weight and strong corrosion resistance while meeting the installation strength. The fixing seat adopts a disc design and is provided with 5 installation holes with a diameter of 11 mm.

Claims

1. A new type of hand-cranked drainage device for amphibious vehicles, characterized by: It includes a pump body, a shaft disc, an end cover, a hand crank and a fixing seat. The shaft disc is fixedly installed at one end of the pump body, and the end cover is fixed at the other end of the pump body. The input shaft of the rotor in the pump body passes through the shaft disc and is connected to one end of the hand crank, and the outer wall of the rotor is tangent to the inner wall of the pump body. The rotor is provided with a rotor groove, which is arranged along the diameter of the rotor, and two rotors with springs are installed in the rotor groove. The rotor and the rotor together divide the inner cavity of the pump body into three cavities. The pump body is provided with a water inlet pipe and a water outlet pipe connected to the inner cavity.

2. The novel hand-cranked drainage device for amphibious vehicles according to claim 1 is characterized in that: It also includes a fixing seat, on which the pump body is fixedly mounted, and the fixing seat is coaxial with the pump body.

3. The novel hand-cranked drainage device for amphibious vehicles according to claim 2 is characterized in that: The pump body and the fixing seat are of a circular pipe pile structure, and connecting flanges are respectively arranged at both ends of the fixing seat. One end of the pump body mounting end cover is connected to one end of the fixing seat, and the end cover is located in the fixing seat.

4. The novel hand-cranked drainage device for amphibious vehicles according to claim 1 is characterized in that: The rotor and shaft disc are made of SUS304 stainless steel.

5. The novel hand-cranked drainage device for amphibious vehicles according to claim 1 is characterized in that: The water inlet pipe and water outlet pipe are made of SUS304 stainless steel; the inner diameter of the water inlet pipe is 28mm, and the inner diameter of the water outlet pipe is 38mm.

6. The novel hand-cranked drainage device for amphibious vehicles according to claim 1 is characterized in that: The rotor is made of SUS304 stainless steel.

7. The novel hand-cranked drainage device for amphibious vehicles according to claim 2 is characterized in that: The shaft disc is made of SUS304 stainless steel by die casting; the fixing seat is made of cast aluminum.

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