Handheld electric hydraulic pump

Abstract

The utility model discloses a handheld electric hydraulic pump, which relates to the technical field of hydraulic pumps and comprises a shell, an air cylinder is fixedly mounted on the side wall of the inner wall of the shell, a working channel is arranged on the inner wall of the air cylinder, a piston is slidably mounted on the inner wall of the working channel, and a driven connecting rod is fixedly mounted at the bottom of the piston. A first rotating shaft is rotationally installed at the bottom of the driven connecting rod, and a stroke adjusting mechanism is rotationally installed on the outer wall of the first rotating shaft. According to the stroke adjusting mechanism, the moving stroke of the piston can be adjusted according to needs through movement of the stroke adjusting mechanism, so that the stroke adjusting mechanism is suitable for occasions with different flow outputs, meanwhile, due to the fact that the stroke adjusting mechanism completely adopts a mechanical structure and does not depend on electronic components, the stroke adjusting mechanism has higher reliability and stability, and difficulty and cost of later maintenance are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic pump technical field, concretely is handheld electric hydraulic pump. BACKGROUND

[0002] The technical origin of the handheld electric hydraulic pump can be traced back to the overall development of hydraulic pump technology. As the core component of the hydraulic transmission system, the technology of the hydraulic pump has undergone a process of evolution from simple to complex and from low efficiency to high efficiency. With the continuous progress of electric technology and the wide application of hydraulic transmission technology, the handheld electric hydraulic pump has gradually developed into an independent product type and is favored by the market for its portability, high efficiency and ease of use.

[0003] The current market handheld electric hydraulic pump mainly adjusts the flow output by the internal control computer, maintains the stability of the pressure by accurately controlling the flow, and meets various work requirements. However, if the computer board fails, the adjustment function of the hydraulic pump may be completely out of control, causing the equipment to malfunction. Moreover, since the computer board is a relatively complex electronic component, the repair process is often very cumbersome and costly, which brings great inconvenience to the later maintenance of the equipment.

[0004] Therefore, the present application is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a handheld electric hydraulic pump to solve the problems raised in the background technology.

[0006] To solve the above technical problems, the utility model provides a handheld electric hydraulic pump, which comprises a shell, a cylinder is fixedly installed on the inner wall side wall of the shell, a work channel is formed in the inner wall of the cylinder, a piston is slidably installed in the inner wall of the work channel, a driven connecting rod is fixedly installed at the bottom of the piston, a rotating shaft one is rotatably installed at the bottom of the driven connecting rod, and a stroke adjusting mechanism is rotatably installed on the outer wall of the rotating shaft one.

[0007] The stroke adjusting mechanism comprises an adjusting connecting rod rotatably installed on the outer wall of the rotating shaft one, a sliding block is rotatably installed at the end of the adjusting connecting rod away from the rotating shaft one, the sliding block is rotatably installed in the inner wall of an arc-shaped groove formed on the surface of an arc-shaped plate at the end away from the adjusting connecting rod, a screw rod is threadedly connected to the inner wall of the sliding block, a connecting column is fixedly installed at the top of the screw rod, a horizontal bevel gear is fixedly installed at the top of the connecting column, a vertical bevel gear is meshingly connected to the outer wall of the horizontal bevel gear, a rotating rod one is fixedly installed in the inner wall of the vertical bevel gear, a fixed plate two is rotatably installed on the outer wall of the rotating rod one, the fixed plate two is fixedly installed on the outer wall of the cylinder, and a rotating ring is fixedly installed at the end of the rotating rod one away from the vertical bevel gear.

[0008] Further, the side wall of the cylinder is fixedly installed with a fixed plate one, the end of the fixed plate one away from the cylinder is rotatably installed with a rotating rod one, the end of the rotating rod one close to the outer wall of the end of the shell is rotatably installed with a swing plate, and the bottom center of the swing plate is rotatably installed on the outer wall of the connecting column.

[0009] Further, the inner wall of the shell is fixedly installed with a supporting plate, the side wall of the supporting plate is fixedly installed with a motor, the driving end of the motor is fixedly installed with a rotating rod two, the outer wall of the rotating rod two is fixedly installed with a crankshaft, the end of the crankshaft is fixedly installed with a rotating shaft two, the outer wall of the rotating shaft two is rotatably installed with a connecting plate, the outer wall of the connecting plate is fixedly installed with a driving connecting rod, the end of the driving connecting rod away from the connecting plate is fixedly installed with a rotating shaft one, and the adjusting connecting rod and the driven connecting rod are arranged on the end of the driving connecting rod.

[0010] Further, the top of the shell is fixedly installed with a hydraulic cylinder, and the bottom of the hydraulic cylinder is fixedly connected with the top of the cylinder.

[0011] Further, the top of the hydraulic cylinder is fixedly and slidably installed with an extension column, and the top of the extension column is fixedly installed with a threaded column.

[0012] Further, the bottom of the shell is provided with a rubber pad, and an anti-skid line is formed on the surface of the rubber pad.

[0013] Further, the end of the driven connecting rod close to the rotating shaft one is thinner than the end close to the piston, and the end of the adjusting connecting rod close to the rotating shaft one is smaller in width than the end close to the sliding block.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: through the movement of the stroke adjusting mechanism, the moving stroke of the piston can be adjusted according to the needs, so as to adapt to occasions with different flow outputs, and since the adjusting mechanism completely adopts a mechanical structure and does not depend on electronic components, the reliability and stability are higher, and the difficulty and cost of later maintenance are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a cross-sectional forward structure schematic diagram of the handheld electric hydraulic pump;

[0016] Figure 2 It is a cross-sectional side structure schematic diagram of the handheld electric hydraulic pump;

[0017] Figure 3 It is a front structure schematic diagram of the handheld electric hydraulic pump.

[0018] In the figure: 1, the shell; 2, hydraulic cylinder; 3, telescopic column; 4, threaded column; 5, rotating ring; 6, cylinder; 7, work channel; 8, support plate; 9, motor; 10, crankshaft; 11, connecting plate; 12, arc plate; 13, arc slot; 14, slider; 15, adjusting connecting rod; 16, driving connecting rod; 17, driven connecting rod; 18, rotating shaft one; 19, screw rod; 20, connecting column; 21, swing plate; 22, fixed plate one; 23, horizontal bevel gear; 24, rotating rod one; 25, vertical bevel gear; 26, fixed plate two; 27, rotating shaft two; 28, rotating rod two; 29, piston. DETAILED DESCRIPTION

[0019] 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.

[0020] Please refer to Figures 1-3 The utility model provides a technical scheme: handheld electric hydraulic pump, including the shell 1, the shell 1 inner wall side wall fixed installation has the cylinder 6, the cylinder 6 inner wall is set with work channel 7, the work channel 7 inner wall sliding installation has the piston 29, the piston 29 bottom fixed installation has driven connecting rod 17, driven connecting rod 17 bottom rotationally installed rotating shaft one 18, rotating shaft one 18 outer wall rotationally installed stroke adjusting mechanism;

[0021] Stroke adjusting mechanism includes the adjusting connecting rod 15 rotationally installed on the outer wall of rotating shaft one 18, the one end of adjusting connecting rod 15 away from rotating shaft one 18 is rotationally installed slider 14, the one end of slider 14 away from adjusting connecting rod 15 is rotationally installed on the inner wall of arc slot 13 set on the surface of arc plate 12, the inner wall of slider 14 is screw connected with screw rod 19, the top of connecting column 20 is fixedly installed on the top of screw rod 19, the top of horizontal bevel gear 23 is fixedly installed on the top of connecting column 20, the outer wall of horizontal bevel gear 23 is meshed with vertical bevel gear 25, the inner wall of vertical bevel gear 25 is fixedly installed with rotating rod one 24, the outer wall of rotating rod one 24 is rotationally installed with fixed plate two 26, the side wall of fixed plate two 26 is fixedly installed on the outer wall of cylinder 6, the end of rotating rod one 24 away from vertical bevel gear 25 is fixedly installed with rotating ring 5.

[0022] It should be noted that: by rotating the rotating ring 5, the meshing rotation of the vertical bevel gear 25 and the horizontal bevel gear 23 can be driven, and then the rotation of the connecting column 20 and the screw rod 19 occurs. Since the screw rod 19 is threadedly connected with the inner wall of the sliding block 14, the rotation of the screw rod 19 will be converted into the linear motion of the sliding block 14. The sliding of the sliding block 14 in the arc-shaped groove 13 changes the included angle between the adjusting connecting rod 15 and the driven connecting rod 17, thereby realizing the adjustment of the moving stroke of the piston 29. The hydraulic pump can flexibly adjust the output flow and pressure according to different working requirements, and the adaptability and working efficiency of the equipment are improved.

[0023] Please refer to Figure 1 、 Figure 2 The utility model provides a technical scheme: hand -held electric hydraulic pump, the lateral wall of cylinder 6 is fixedly installed with fixed plate no. 22, the end portion away from cylinder 6 of fixed plate no. 22 is rotatably installed with rotating rod no. 1 24, and the end portion outer wall of rotating rod no. 1 24 close to shell 1 is rotatably installed with swing plate 21, and swing plate 21 bottom center rotatably installs on the outer wall of connecting column 20.

[0024] It should be noted that: the swing plate 21 is rotatably connected with the connecting column 20, so that the swing plate 21 can swing with the rotation of the connecting column 20, and then the moving stroke of the piston 29 is accurately adjusted through the adjusting connecting rod 15, the sliding block 14 and other mechanisms.

[0025] Please refer to Figure 1 、 Figure 2 The utility model provides a technical scheme: hand -held electric hydraulic pump, including the fixed installation of support plate 8 in the inner wall of shell 1, the fixed installation of motor 9 on the lateral wall of support plate 8, the fixed installation of rotating rod no. 2 28 on the drive end of motor 9, the fixed installation of crankshaft 10 on the outer wall of rotating rod no. 2 28, the fixed installation of shaft no. 2 27 on the end of crankshaft 10, the rotatable installation of connecting plate 11 on the outer wall of shaft no. 2 27, the fixed installation of driving connecting rod 16 on the outer wall of connecting plate 11, the fixed installation of shaft no. 1 18 on the end inner wall of driving connecting rod 16 away from connecting plate 11, and the setting of adjusting connecting rod 15 and driven connecting rod 17 in the end inner wall of driving connecting rod 16.

[0026] It should be noted that: motor 9 rotates rotating rod no. 2 28 and crankshaft 10, and efficiently transmits power to subsequent mechanisms. The shaft no. 2 27 at the end of the crankshaft 10 is rotatably connected with the connecting plate 11, and the connecting plate 11 drives the driving connecting rod 16 to move. This series of transmission ensures the stable transmission of power and reduces energy loss.

[0027] Please refer to Figure 3 The utility model provides a technical scheme: hand -held electric hydraulic pump, including the fixed installation of hydraulic cylinder 2 on the top of shell 1, and the fixed connection of the bottom of hydraulic cylinder 2 and the top of cylinder 6.

[0028] It should be noted that: the hydraulic cylinder 2 as the output component of the hydraulic pump, its performance directly affects the working efficiency of the hydraulic pump, by fixing the hydraulic cylinder 2 and the cylinder 6, can ensure that the energy loss in the process of hydraulic transmission is minimized, thereby improving the working efficiency of the hydraulic pump.

[0029] Please refer to Figure 3 The utility model provides a technical scheme: handheld electric hydraulic pump, including hydraulic cylinder 2 top fixed sliding installation telescopic column 3, telescopic column 3 top fixed mounting screw column 4.

[0030] It should be noted that: through screw column 4, it is convenient to connect various external devices, thereby meeting different work requirements, so that the hydraulic pump can adapt to more kinds of work tasks, and the practical value is improved.

[0031] Please refer to Figure 3 The utility model provides a technical scheme: handheld electric hydraulic pump, including the rubber pad of shell 1 bottom is provided with, and the surface of rubber pad is provided with integrative antiskid line.

[0032] It should be noted that: the rubber pad has good elasticity and buffering performance, can effectively reduce the vibration and noise generated in the working or moving process of the equipment, and improves the use experience of the user.

[0033] Further, the design of the antiskid line enhances the friction between the shell 1 and the placement surface, prevents operation errors or safety hazards caused by sliding or displacement of the equipment during use.

[0034] Please refer to Figure 1 , Figure 2 The utility model provides a technical scheme: handheld electric hydraulic pump, including from driving link 17 near one end of pivot a 18 outer wall is thinner than near piston 29 one end, and the width of adjusting link 15 near pivot a 18 one end is less than near slider 14 one end.

[0035] It should be noted that: because the slider 14 will generate certain lateral force when sliding in the arc-shaped groove 13, and the width of the adjusting link 15 near the slider 14 is larger, it can better withstand this lateral force, prevent the adjusting link 15 from bending or deforming during sliding.

[0036] Working principle: when the motor 9 starts, drive rotating rod two 28 and the crankshaft 10 rotation, the rotation of the crankshaft 10 further drive rotating shaft two 27 and the connecting plate 11 movement, connecting plate 11 on the driving link 16 swing, driving link 16 through rotating shaft one 18 and driven link 17 connected, thereby drive driven link 17 and piston 29 in the cylinder 6 work channel 7 up and down slide, in the movement of the piston 29, through the rotating ring 5, can drive rotating rod one 24 and vertical bevel gear 25 rotation, vertical bevel gear 25 and horizontal bevel gear 23 meshing, therefore horizontal bevel gear 23 and connecting column 20 also will rotate, connecting column 20 bottom screw 19 in the process of rotation will extend or retract, thereby drive slider 14 in the arc slot 13 slide, the slider 14 slide changes the angle between the adjusting link 15 and driven link 17, further adjust the piston 29 travel, when the screw 19 extend longer, slider 14 to the end of the arc slot 13 movement, make the angle between the adjusting link 15 and driven link 17 increase, the piston 29 travel also increase accordingly, otherwise when the screw 19 retract, the piston 29 travel decreases, through this way, can adjust the piston 29 travel according to the need, thereby adapt to different flow output occasion, at the same time, because the adjusting mechanism completely adopts mechanical structure, not rely on electronic components, therefore has higher reliability and stability, reduce the difficulty and cost of later maintenance.

Claims

1. Hand-held electric hydraulic pump comprising a housing (1), characterized in that: The inner wall side wall of the shell (1) is fixedly installed with a cylinder (6), the inner wall of the cylinder (6) is provided with a working channel (7), the inner wall of the working channel (7) is slidably installed with a piston (29), the bottom of the piston (29) is fixedly installed with a driven connecting rod (17), the bottom of the driven connecting rod (17) is rotatably installed with a rotating shaft (18), and the outer wall of the rotating shaft (18) is rotatably installed with a stroke adjusting mechanism. The stroke adjusting mechanism comprises an adjusting connecting rod (15) rotatably installed on the outer wall of the rotating shaft (18), one end of the adjusting connecting rod (15) away from the rotating shaft (18) is rotatably installed with a sliding block (14), the end of the sliding block (14) away from the adjusting connecting rod (15) is rotatably installed on the inner wall of the arc-shaped groove (13) formed on the surface of the arc-shaped plate (12), the inner wall of the sliding block (14) is threadedly connected with a screw rod (19), the top of the screw rod (19) is fixedly installed with a connecting column (20), the top of the connecting column (20) is fixedly installed with a transverse bevel gear (23), the outer wall of the transverse bevel gear (23) is meshingly connected with a vertical bevel gear (25), the inner wall of the vertical bevel gear (25) is fixedly installed with a rotating rod (24), the outer wall of the rotating rod (24) is rotatably installed with a fixed plate (26), and the side wall of the fixed plate (26) is fixedly installed on the outer wall of the cylinder (6).

2. The hand-held electric hydraulic pump of claim 1, wherein: The side wall of the cylinder (6) is fixedly installed with a fixed plate (22), the end of the fixed plate (22) away from the cylinder (6) is rotatably installed with a rotating rod (24), and the end of the rotating rod (24) close to the shell (1) is rotatably installed with a swing plate (21) on the outer wall of the connecting column (20).

3. The hand-held electric hydraulic pump of claim 1, wherein: The inner wall of the shell (1) is fixedly installed with a support plate (8), the side wall of the support plate (8) is fixedly installed with a motor (9), the driving end of the motor (9) is fixedly installed with a rotating rod (28), the outer wall of the rotating rod (28) is fixedly installed with a crankshaft (10), the end of the crankshaft (10) is fixedly installed with a rotating shaft (27), the outer wall of the rotating shaft (27) is rotatably installed with a connecting plate (11), the outer wall of the connecting plate (11) is fixedly installed with a driving connecting rod (16), and the end of the driving connecting rod (16) away from the connecting plate (11) is fixedly installed with a rotating shaft (18) on the inner wall.

4. The hand-held electric hydraulic pump of claim 1, wherein: The top of the shell (1) is fixedly installed with a hydraulic cylinder (2), and the bottom of the hydraulic cylinder (2) is fixedly connected with the top of the cylinder (6).

5. The hand-held electric hydraulic pump of claim 4, wherein: The top of the hydraulic cylinder (2) is fixedly and slidably installed with an extension column (3), and the top of the extension column (3) is fixedly installed with a threaded column (4).

6. The hand-held electric hydraulic pump of claim 1, wherein: The bottom of the shell (1) is provided with a rubber pad, and the surface of the rubber pad is provided with an integrally formed anti-skid pattern.

7. The hand-held electric hydraulic pump of claim 1 wherein: The driven connecting rod (17) is thinner at the end close to the rotating shaft (18) than at the end close to the piston (29), and the adjusting connecting rod (15) is narrower at the end close to the rotating shaft (18) than at the end close to the sliding block (14).

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