Oil cylinder for power trim device

Abstract

The utility model relates to the technical field of power trim devices, and discloses an oil cylinder for a power trim device, which comprises a power trim device body, an oil cylinder mechanism is arranged outside the power trim device body, a pressure relief mechanism is arranged outside the oil cylinder mechanism, and the oil cylinder mechanism comprises an oil cylinder body. A first cavity channel is formed in the bottom of the oil cylinder body, an oil pump is arranged at one end of the first cavity channel, a motor is arranged at the top of the oil pump, a second cavity channel is formed in the top of the outer surface of the oil cylinder body, a backflow suction valve is arranged at one end of the second cavity channel, and an impact assembly is arranged in the oil cylinder body. According to the oil cylinder for the power trim device, the oil quantity in the oil cylinder body is increased, and the impact piston is touched strongly, so that the impact push rod extends upwards to lift an outboard engine. The effect that when the motor drives the oil pump, the impact push rod in the oil cylinder body longitudinally inclines upwards or downwards on the outboard engine is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power longitudinal inclination device technical field, concretely is a kind of oil cylinder for power longitudinal inclination device. BACKGROUND

[0002] At present, small boats are all equipped with outboard propulsion equipment, referred to as outboard motor, which is an integrated structure, with oil tank, engine and operating lever at the upper end, and propeller at the lower end. The outboard motor is located outside the stern of the hull and is connected with the hull shaft. When in use, most of the outboard motor is located under the bottom of the hull. Since the river bottom is uneven, there are often protruding reefs and sundries in the river. When the boat is running at high speed, the propeller will be damaged by hitting the reefs and sundries. On the other hand, the traditional outboard motor cannot adjust the optimal running angle of the propeller, which makes the boat run slowly and consumes more energy. The power longitudinal inclination device (gas-liquid lifting device) can adjust the optimal running angle of the propeller and has the function of anti-collision protection.

[0003] The existing power longitudinal inclination device inclines outward too much, which reduces the stability of some variable speed boats and makes them unstable during variable speed, which may cause the boat to be unstable momentarily and shake easily, causing damage to the personnel inside the boat. The hydraulic cylinder of the power longitudinal inclination device is improved to make the power longitudinal inclination device more stable during inclination. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an oil cylinder for power longitudinal inclination device to solve the problem of instability of some variable speed boats caused by the outward inclination of the power longitudinal inclination device too much, which may cause the boat to be unstable momentarily and shake easily, causing damage to the personnel inside the boat.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: an oil cylinder for power longitudinal inclination device, comprising a power longitudinal inclination device body, an oil cylinder mechanism is arranged outside the power longitudinal inclination device body, and a pressure relief mechanism is arranged outside the oil cylinder mechanism.

[0006] The oil cylinder mechanism comprises an oil cylinder body, a cavity one is arranged at the bottom of the oil cylinder body, an oil pump is arranged at one end of the cavity one, an electric motor is arranged at the top of the oil pump, a cavity two is arranged at the top of the outer surface of the oil cylinder body, a backflow suction valve is arranged at one end of the cavity two, and an impact assembly is arranged inside the oil cylinder body.

[0007] Preferably, the impact assembly comprises an impact push rod, an impact piston is arranged at the bottom of the impact push rod, and a hydraulic cylinder cover is arranged at the top of the outer surface of the impact push rod.

[0008] Preferably, the hydraulic cylinder cover is arranged at the top of the oil cylinder body, and the impact piston is arranged inside the oil cylinder body.

[0009] Preferably, the bottom of the oil cylinder body is provided with a confluence seat, and the cavity is arranged inside the confluence seat.

[0010] Preferably, the pressure relief mechanism comprises a pressure relief cavity, one end of the pressure relief cavity is provided with a tilted overflow piston, one side of the tilted overflow piston is provided with a tilted overflow valve, and the outside of the pressure relief cavity is provided with a manual relief valve.

[0011] Preferably, the pressure relief cavity is arranged on the outer surface of the oil cylinder body and inside the confluence seat.

[0012] Preferably, the outer surface of the cavity is provided with a channel one, the outer surface of the cavity two is provided with a channel two, and the channel one and the channel two are arranged outside the manual relief valve.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] First, the increase of the oil amount in the oil cylinder body makes the impact piston touch the impact push rod to stretch upward and lift the outboard motor. The oil on the top of the impact piston flows out along the side of the cylinder through the pressure relief cavity and enters the channel in the confluence seat. The oil returns to the oil pump and is supplied to the cavity two, enters the top of the impact piston in the oil cylinder body, and the backflow suction valve is in the closed state, so that the height of the impact push rod is stable, the outboard motor is kept at a certain position, and the effect that the impact push rod in the oil cylinder body vertically inclines the outboard motor upward or downward when the motor drives the oil pump is achieved.

[0015] Second, the outboard motor is manually lifted, and the manual relief valve is counterclockwise rotated to the completely withdrawn position. In the completely withdrawn position, the oil in the oil cylinder body can freely flow from top to bottom or from bottom to top. The pipeline into the oil pump can make the oil freely flow to each side of the oil cylinder body, compensate for the different volumes of the cavity one and the cavity two of the oil cylinder body, and when the outboard motor is inclined upward or downward, the manual tilted valve is opened or leaked, and the engine is rarely or completely not moved. The oil pressure from the oil pump supplies the cavity two, so that the pressures in the two cavities are the same, and the effect that the manual power longitudinal inclination device body adjusts and controls the outboard motor to vertically incline upward or downward is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the overall section of the utility model structure;

[0017] Figure 2 It is an enlarged schematic view of structure A of the utility model;

[0018] Figure 3 It is a three-dimensional schematic view of the confluence seat of the utility model structure;

[0019] Figure 4 It is a three-dimensional schematic view of the utility model structural oil cylinder body.

[0020] 1, power longitudinal device body; 2, oil cylinder mechanism; 201, oil cylinder body; 202, cavity one; 203, oil pump; 204, motor; 205, cavity two; 206, backflow suction valve; 3, pressure relief mechanism; 301, pressure relief cavity; 302, upturned overflow piston; 303, upturned overflow valve; 304, manual relief valve; 4, impact assembly; 401, impact push rod; 402, impact piston; 403, hydraulic cylinder cover; 5, confluence seat; 6, passage one; 7, passage two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] The utility model provides the following technical solutions:

[0023] Embodiment one

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 A kind of oil cylinder for power longitudinal device, including power longitudinal device body 1, the outside of power longitudinal device body 1 is provided with oil cylinder mechanism 2, the outside of oil cylinder mechanism 2 is provided with pressure relief mechanism 3.

[0025] Oil cylinder mechanism 2 includes oil cylinder body 201, the bottom of oil cylinder body 201 is provided with cavity one 202, one end of cavity one 202 is provided with oil pump 203, the top of oil pump 203 is provided with motor 204, the top of the outer surface of oil cylinder body 201 is provided with cavity two 205, one end of cavity two 205 is provided with backflow suction valve 206, the inside of oil cylinder body 201 is provided with impact assembly 4.

[0026] Impact assembly 4 includes impact push rod 401, the bottom of impact push rod 401 is provided with impact piston 402, the top of the outer surface of impact push rod 401 is provided with hydraulic cylinder cover 403.

[0027] Hydraulic cylinder cover 403 is arranged at the top of oil cylinder body 201, and impact piston 402 is arranged in the inside of oil cylinder body 201.

[0028] The bottom of the oil cylinder body 201 is provided with a confluence base 5, and the cavity channel one 202 is arranged inside the confluence base 5.

[0029] Through the above technical scheme, when the power longitudinal inclination device body 1 works, the oil cylinder mechanism 2 can be driven by the motor 204 to drive the oil pump 203 to incline upward or downward, the pressure relief mechanism 3 realizes manual upward or downward inclination of the impact push rod 401 in the oil cylinder body 201, when the longitudinal inclination switch is in the upward position and the motor 204 is turned on, the motor 204 drives the oil pump 203 to work, a small amount of oil is driven to enter the oil cylinder body 201 below the impact piston 402 under the action of pressure. With the increase of the amount of oil entering the oil cylinder body 201, the impact piston 402 touches the impact push rod 401 to make the impact push rod 401 extend upward, and the outboard motor is lifted. The oil at the top of the impact piston 402 flows out along the side of the cylinder through the pressure relief cavity channel 301 and enters the channel in the confluence base 5. The oil returns to the oil pump 203 and is supplied to the cavity channel two 205, enters the top of the impact piston 402 in the oil cylinder body 201, and the backflow suction valve 206 is in a closed state, so that the height of the impact push rod 401 is stable, the outboard motor is kept in a predetermined position, and the effect that the impact push rod 401 in the oil cylinder body 201 driven by the motor 204 and the oil pump 203 inclines the outboard motor upward or downward is achieved.

[0030] Embodiment two

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , and on the basis of embodiment one, it is further obtained that the pressure relief mechanism 3 comprises a pressure relief cavity channel 301, one end of the pressure relief cavity channel 301 is provided with a tilted overflow piston 302, one side of the tilted overflow piston 302 is provided with a tilted overflow valve 303, and the outside of the pressure relief cavity channel 301 is provided with a manual relief valve 304.

[0032] The pressure relief cavity channel 301 is arranged on the outer surface of the oil cylinder body 201, and the pressure relief cavity channel 301 is arranged inside the confluence base 5.

[0033] The outer surface of the cavity channel one 202 is provided with a channel one 6, the outer surface of the cavity channel two 205 is provided with a channel two 7, and the channel one 6 and the channel two 7 are arranged outside the manual relief valve 304.

[0034] By the above technical solution, the impact push rod 401 in the oil cylinder body 201 can be adjusted in height manually, and the outboard engine needs to be manually lifted, and the boat owner needs to rotate the manual relief valve 304 out by 3 to 5 turns. After the valve is withdrawn, the internal pipelines of the busbar 5 are connected together through the channel one 6 and the channel two 7. These channels connect the cavity one 202 and the cavity two 205 of the oil cylinder body 201 and the oil pump 203, so that the outboard engine can be raised or lowered. The action of the impact push rod 401 continues until the manual relief valve 304 is closed, and the working fluid is sealed in the oil cylinder body 201 and the busbar 5. If the outboard engine needs to be manually raised, the manual relief valve 304 is rotated counterclockwise to the fully withdrawn position. In the fully withdrawn position, the oil in the oil cylinder body 201 can flow freely from top to bottom or from bottom to top. The pipeline into the oil pump 203 can make the oil flow freely to each side of the oil cylinder body 201, to compensate for the volume difference between the cavity one 202 and the cavity two 205 of the oil cylinder body 201. When the outboard engine is tilted upward or downward, if the manual lifting valve is opened or leaked, the engine has little or no movement. The oil pressure from the oil pump 203 will supply the cavity two 205, so that the pressure in the two cavities is the same, achieving the effect of manually adjusting and controlling the power longitudinal trim device body 1 to tilt the outboard engine upward or downward.

[0035] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder for a powered tilting device, comprising a powered tilting device body (1), characterized in that: The body (1) of the power tilting device is provided with a hydraulic cylinder mechanism (2) on the outside, and a pressure relief mechanism (3) is provided on the outside of the hydraulic cylinder mechanism (2). The cylinder mechanism (2) includes a cylinder body (201), a cavity one (202) is provided at the bottom of the cylinder body (201), an oil pump (203) is provided at one end of the cavity one (202), an electric motor (204) is provided at the top of the oil pump (203), a cavity two (205) is provided at the top of the outer surface of the cylinder body (201), a backflow suction valve (206) is provided at one end of the cavity two (205), and an impact component (4) is provided inside the cylinder body (201). The pressure relief mechanism (3) includes a pressure relief chamber (301), one end of which is provided with a tilting overflow piston (302), and one side of which is provided with a tilting overflow valve (303). A manual relief valve (304) is provided outside the pressure relief chamber (301). The pressure relief chamber (301) is located on the outer surface of the cylinder body (201). The pressure relief chamber (301) is located inside the manifold (5). The outer surface of the first chamber (202) is provided with a channel (6), and the outer surface of the second chamber (205) is provided with a channel (7). The first channel (6) and the second channel (7) are located outside the manual relief valve (304).

2. The hydraulic cylinder for a power tilting device according to claim 1, characterized in that: The impact assembly (4) includes an impact push rod (401), an impact piston (402) is provided at the bottom of the impact push rod (401), and a hydraulic cylinder head (403) is provided at the top of the outer surface of the impact push rod (401).

3. The hydraulic cylinder for a power tilting device according to claim 2, characterized in that: The hydraulic cylinder head (403) is located on the top of the cylinder body (201), and the impact piston (402) is located inside the cylinder body (201).

4. The hydraulic cylinder for a power tilting device according to claim 1, characterized in that: The bottom of the cylinder body (201) is provided with a manifold (5), and the cavity (202) is located inside the manifold (5).

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