Portable electric hydraulic lift truck

Abstract

The utility model relates to the technical field of operation equipment, and discloses a portable electric hydraulic lift truck, which comprises a loading structure, a lifting system and an electrical system, the loading structure comprises a bedplate slideway and a handle, the left side and the right side of the bedplate slideway are respectively provided with a locking mechanism, and the lifting system is arranged on the bedplate slideway. Two or more movable openings are formed in the outward side of the locking mechanism, and limiting plugs are arranged in the movable openings. A connecting rod is installed in the locking mechanism, locking magnetic poles and movable magnetic poles which are opposite in magnetic pole are alternately arranged on the connecting rod, and when the handle rotates, the connecting rod moves together in the locking mechanism; a fixed magnet is arranged at one end, close to the connecting rod, of the limiting plug; when the carrying platform is in a non-moving state in the horizontal direction, the limiting holes correspond to the movable openings in position. According to the equipment, the locking function of the sliding rails can be achieved while supporting force is provided, and dual stability of the platform in the horizontal direction and the vertical direction is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of operating equipment, in particular to a portable electric hydraulic lift truck. Background Art

[0002] A patent for a multifunctional vehicle-mounted cart with the ability to move up and down platforms (ZL202322811921.3) mentions a cart. The cart body is slidably connected to the lifting system through a slide rail mechanism. A telescopic mechanism is arranged on one side of the lifting system. The telescopic fixed end of the telescopic mechanism is rotatably connected to one side of the lifting system, and the lifting system and the telescopic mechanism are controlled separately. By driving the lifting support function provided by the lifting system, the telescopic mechanism provides the support and auxiliary sliding function for entering and exiting the carriage after the lifting system is raised, so that the cart body slides back and forth along the slide rail mechanism, thereby realizing the function of moving up and down platforms; through the sequential deformation of the lifting system and the telescopic mechanism, the cart can realize the function of moving up and down, thus improving the handling efficiency.

[0003] However, in actual use, due to the movement freedom of the slide rail of the cart in the horizontal direction, when the cart is loaded into the handling carriage together with the goods, when the handling vehicle starts, during the driving of the handling vehicle, the acceleration changes. Therefore, the cart in the carriage will displace horizontally under the action of acceleration and inertia, causing the goods to fall or be damaged; and when the cart is inside the carriage, since there is no one to watch, once the platform is unstable, it will cause serious damage to the goods. Summary of the Invention

[0004] (1) Technical problems to be solved: Aiming at the deficiencies of the prior art, the utility model provides a portable electric hydraulic lift truck. By only turning the handle, it can not only provide support force but also realize the locking function of the slide rail, ensuring the double stability of the platform in the horizontal and vertical directions.

[0005] (2) Technical solution: To achieve the above object, the present utility model provides the following technical solution: A portable electric hydraulic lift truck that can move in the horizontal direction. The device includes a loading structure, a lifting system, and an electrical system; the loading structure includes a platform slideway and a handle. Locking mechanisms are provided on both the left and right sides of the platform slideway. At least one movable opening is provided on the outer side of the locking mechanism, and a limiting plug is arranged inside the movable opening; a connecting rod is installed inside the locking mechanism, and locking magnetic poles and movable magnetic poles with the same number and opposite magnetic poles are alternately arranged on the connecting rod. The connecting rod is connected to the handle, and the handle can rotate along the axis. When the handle rotates, the connecting rod moves together inside the locking mechanism; a fixed magnet is arranged at one end of the limiting plug close to the connecting rod, and the fixed magnet has the opposite magnetic pole to the movable magnetic pole. The limiting plug has a degree of freedom of movement in the locking mechanism; a loading platform is installed above the platform slideway. Limiting holes are designed on both the left and right sides of the loading platform. The limiting holes are the same size as the movable openings, are on the same horizontal plane, and the number of the limiting holes is the same as that of the movable openings. When the loading platform is in an unmoved state in the horizontal direction, the positions of the limiting holes correspond to those of the movable openings.

[0006] The loading platform is divided into a locked state and a movable state. When the loading platform is in the locked state, the position of the movable opening corresponds to the locking magnetic pole, and the limiting plug is repelled; when the loading platform is in the movable state, the position of the movable opening corresponds to the movable magnetic pole, and the limiting plug is attracted.

[0007] Preferably, the center line of the limiting plug and the connecting rod is perpendicular to the horizontal plane. The length of the limiting plug is greater than the depth of the movable opening and less than the distance from the outer surface of the connecting rod to the limiting hole. The diameter of the limiting plug is the same as the diameters of the movable opening and the limiting hole.

[0008] Preferably, the handle and the connecting rod are connected through a connecting rod transmission mechanism or a pulley mechanism.

[0009] Preferably, a push rod is arranged above the loading platform. A fixed rod is fixedly arranged on the upper surface of the loading platform. A pressure rod is fixedly connected in the middle of the push rod. An arc is designed at the bottom of the pressure rod, and the diameter of the arc is the same as the diameter of the fixed rod.

[0010] Preferably, clamps are arranged at both the left and right ends of the push rod. The clamps limit the push rod in the horizontal direction. A rotating shaft is arranged in the middle of the clamps. The rotating shaft passes through the clamps and the push rod, and the push rod has a degree of freedom of rotation along the center line of the rotating shaft.

[0011] Preferably, the lifting system includes a load platform, a scissor lift, and a hydraulic lifting push rod. The electrical system includes an electrical box, a battery, a lifting switch, a power switch, a charging socket, and a power display screen. The scissor lift is fixedly connected to the hydraulic lifting push rod below the table board slideway. The hydraulic lifting push rod is controlled by the electrical box. When the hydraulic lifting push rod works, it pushes the table board slideway to move in the vertical direction.

[0012] Preferably, a vehicle frame chassis is fixedly connected to the lower end of the scissor lift. Steering wheels are installed on both the left and right sides of the load platform. The number of the steering wheels is 4. When the load platform is not lifted, the steering wheels contact the ground and drive the device to move on the ground.

[0013] (III) Beneficial effects: Compared with the prior art, the present utility model provides a portable electric hydraulic lift truck, which has the following beneficial effects:

[0014] For a portable electric hydraulic lift truck, at least one movable opening is provided on the outer side of the locking mechanism. A limiting plug is arranged inside the movable opening. A connecting rod is installed inside the locking mechanism. Four locking magnetic poles are arranged on the connecting rod. The adjacent locking magnetic poles are opposite magnetic poles to each other. The connecting rod is connected to the handle. The handle can rotate along the axis. When the handle rotates, the connecting rod moves together inside the locking mechanism. The moving distance of the connecting rod is the same as the distance between the adjacent locking magnetic poles. A fixed magnet is arranged at one end of the limiting plug close to the connecting rod. The magnetic poles of the fixed magnets on the same side of the connecting rod are the same. The limiting plug has a movable degree of freedom inside the locking mechanism. A load platform is installed above the table board slideway. Limiting holes are designed on both the left and right sides of the load platform. The number of the limiting holes is the same as that of the movable openings. When the load platform is in an unmoved state in the horizontal direction, the positions of the limiting holes correspond to those of the movable openings. In the initial state, the fixed magnet on the limiting plug is attracted to the opposite magnetic pole of the locking magnetic pole, so that the limiting plug is fixed inside the movable opening. When it is necessary to lock the load platform and the slide rail in the horizontal direction, the user only needs to rotate the handle to move the connecting rod, and the magnetic poles of the corresponding locking magnets inside the movable opening change, causing an outward repulsive force on the limiting plug, so that the limiting plug pops out and one end enters the limiting hole corresponding to the position of the movable opening, realizing the limiting of the device. If the user wants to release the limit, the user only needs to rotate the handle again to restore it, and the locking magnetic pole corresponding to the movable opening will change back to the original magnetic pole that attracts the limiting plug, and the limiting plug will be fixed back inside the movable opening again. This design realizes locking through simple rotation, and at the same time, the load platform and the table board slideway are connected by the limiting plug when the locking function is realized, and part of the pressure is shared by the limiting plug, making the structure more stable.

[0015] A portable electric hydraulic lift truck is provided with a push rod above the load platform. A fixed rod is fixedly arranged on the upper surface of the load platform. A pressure rod is fixedly connected in the middle of the push rod. An arc is designed at the bottom of the pressure rod, and the diameter of the arc is the same as the diameter of the fixed rod. When the pressure rod is in the non-retractable state, the arc at the bottom of the pressure rod is fitted with the fixed rod, and the push rod is limited. When the pressure rod is in the retractable state, there is no contact point between the arc at the bottom of the pressure rod and the fixed rod, and the push rod has a rotational degree of freedom. Clamps are arranged at both the left and right ends of the push rod. The clamps limit the push rod in the horizontal direction. A rotating shaft is arranged in the middle of the clamps. The rotating shaft penetrates through the clamps and the push rod, and the push rod has a rotational degree of freedom along the center line of the rotating shaft. This design enables the user to fold the push rod according to the specific usage situation, improving portability and facilitating storage. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model and a partial enlarged structure diagram of the electrical system;

[0017] Figure 2 It is a schematic diagram of the loading structure and the load platform structure of the present utility model;

[0018] Figure 3 It is a schematic diagram of the lower view structure of the present utility model in the locked state;

[0019] Figure 4 It is a schematic diagram of the load platform structure of the present utility model;

[0020] Figure 5 It is a schematic diagram of the limit plug structure of the present utility model;

[0021] Figure 6 It is a schematic diagram of the locking mechanism and the table board slide rail structure of the present utility model;

[0022] Figure 7 It is a schematic diagram of the sectional view of the A-A section of the loading structure of the present utility model in the active state;

[0023] Figure 8 It is a schematic diagram of the partial enlarged structure of the clamp connection part of the present utility model;

[0024] Figure 9 It is a schematic diagram of the sectional view of the electrical system structure of the present utility model.

[0025] In the figure: 1. Loading structure; 101. Handle; 102. Table board slideway; 2. Lifting system; 201. Scissor fork; 202. Hydraulic lifting push rod; 3. Electrical system; 301. Electrical box; 302. Battery; 303. Lifting switch; 304. Power switch; 305. Charging socket; 306. Battery level display screen; 4. Locking mechanism; 401. Movable opening; 402. Limit plug; 403. Link rod; 404. Locking magnetic pole; 405. Movable magnetic pole; 406. Fixed magnet; 5. Load platform; 501. Limit hole; 6. Push rod; 601. Pressing rod; 602. Fixed rod; 603. Fixture; 604. Rotating shaft; 7. Frame chassis; 8. Steering wheel. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figures 1-7As shown in the figure, a portable electric hydraulic lift truck includes a loading structure 1, a lifting system 2, and an electrical system 3. Under the action of the loading structure 1, the device can move horizontally. The loading structure 1 includes a platen slideway 102 and a handle 101. Locking mechanisms 4 are provided on both the left and right sides of the platen slideway 102. At least one movable opening 401 is provided on the outer side of the locking mechanism 4, and a limiting plug 402 is arranged inside the movable opening 401. A connecting rod 403 is installed inside the locking mechanism 4. Locking magnetic poles 404 and movable magnetic poles 405 with the same number and opposite magnetic poles are alternately arranged on the connecting rod 403. The connecting rod 403 is connected to the handle 101 through a connecting rod 403 mechanism or a pulley mechanism, which is a prior art and not shown in the figure. The handle 101 can rotate along the axis. When the handle 101 rotates, the connecting rod 403 mechanism or the pulley mechanism drives the connecting rod 403 to move together inside the locking mechanism 4, thereby changing the positions of the locking magnetic poles 404 and the movable magnetic poles 405. A fixed magnet 406 is arranged at one end of the limiting plug 402 close to the connecting rod 403. The fixed magnet 406 has a magnetic pole opposite to that of the movable magnetic pole 405 and the same as that of the locking magnetic pole 404. The limiting plug 402 has a degree of freedom of movement in the locking mechanism 4. A loading platform 5 is installed above the platen slideway 102. Limiting holes 501 are designed on both the left and right sides of the loading platform 5. The limiting holes 501 are the same size as the movable openings 401 and are located on the same horizontal plane. The number of the limiting holes 501 is the same as that of the movable openings 401. When the loading platform 5 is in an unmoved state in the horizontal direction, the positions of the limiting holes 501 correspond to those of the movable openings 401.

[0028] The loading platform 5 is divided into a locked state and a movable state. When the loading platform 5 is in the locked state, the position of the movable opening 401 corresponds to the locking magnetic pole 404. The limiting plug 402 is repelled and pops out to both sides, and one end enters the limiting hole 501 to achieve locking. When the loading platform 5 is in the movable state, the position of the movable opening 401 corresponds to the movable magnetic pole 405. The limiting plug 402 is attracted by the magnetic force and is magnetically adsorbed and fixed inside the movable opening 401. At this time, the loading platform 5 can move.

[0029] As Figures 1-7 shown, the center line of the limiting plug 402 and the connecting rod 403 is perpendicular to the horizontal plane. The length of the limiting plug 402 is greater than the depth of the movable opening 401 and less than the distance from the outer surface of the connecting rod 403 to the limiting hole 501, ensuring that one end of the limiting plug 402 enters the limiting hole 501 and the other end remains in the movable opening 401 in the locked state. The diameter of the limiting plug 402 is the same as the diameters of the movable opening 401 and the limiting hole 501.

[0030] AsFigure 1 and Figure 8 As shown in Figure 8 , a push rod 6 is arranged above the load platform 5. During transportation, the user uses the push rod 6 to push the equipment to move. A fixed rod 602 is fixedly arranged on the upper surface of the load platform 5. The fixed rod 602 is horizontally placed transversely on the load platform 5. A pressure rod 601 is fixedly connected in the middle of the push rod 6. When the pressure rod 601 is in the locked state, it has a downward pressure. The bottom of the pressure rod 601 is designed with an arc, and the diameter of the arc is the same as the diameter of the fixed rod 602. When the pressure rod 601 is in the downward pressure state, the arc at the bottom of the pressure rod 601 is engaged with the fixed rod 602, and the push rod 6 is limited. When the pressure rod 601 is in the relaxed state, there is no contact point between the arc at the bottom of the pressure rod 601 and the fixed rod 602, and the push rod 6 has a rotational freedom. In actual use, when the push rod 6 does not need to be folded, the pressure rod 601 is in the downward pressure state and locked, and the push rod 6 is limited on the fixed rod 602.

[0031] As Figure 1 and Figure 8 As shown in Figure 8 , clamping fixtures 603 are arranged at both the left and right ends of the push rod 6. The clamping fixtures 603 limit the push rod 6 in the horizontal direction. A rotating shaft 604 is arranged in the middle of the clamping fixtures 603. The rotating shaft 604 passes through the clamping fixtures 603 and the push rod 6, and the push rod 6 has a rotational freedom along the center line of the rotating shaft 604. In specific use, when the operator pulls up the push rod 6 to 90°, the push rod 6 will be automatically fixed firmly. When the push rod 6 needs to be retracted, only the pressure rod 601 needs to be pressed down, and the push rod 6 resumes its rotational freedom, and then it can be folded and placed on the tabletop.

[0032] As Figure 1 and Figure 9 As shown in Figure 9 , the lifting system 2 includes a load platform 5, a scissor lift 201 and a hydraulic lifting push rod 202. The electrical system 3 includes an electrical box 301, a battery 302, a lifting switch 303, a power switch 304, a charging socket 305 and a power display screen 306. The scissor lift 201 and the hydraulic lifting push rod 202 are fixedly connected below the table plate slideway 102. The hydraulic lifting push rod 202 is controlled by the electrical box 301. When the hydraulic lifting push rod 202 works, it can push the table plate slideway 102 to move in the vertical direction, and at the same time, the scissor lift 201 extends upward to support the table plate slideway 102.

[0033] As Figure 1 As shown in Figure 1 , the lower end of the scissor lift 201 is fixedly connected to a vehicle frame chassis 7. Directional wheels 8 are installed on both the left and right sides of the load platform 5. The number of the directional wheels 8 is 4. When the load platform 5 is not raised, the directional wheels 8 contact the ground and drive the equipment to move on the ground.

[0034] In actual use, if it is necessary to place the device together with the goods inside the carriage, first, the staff needs to push the device and the goods together near the vehicle loading platform. Then, by operating the electrical control box 301, the movement of the hydraulic lifting push rod 202 is controlled to lift the lower surface of the steering wheel 8 to the same horizontal height as the upper surface of the carriage. Subsequently, the handle 101 is rotated to open the locking mechanism 4 between the load platform 5 and the platform slideway 102, and the load platform 5 is pushed along the platform slideway 102 into the carriage. Then, the vehicle frame chassis 7 is lifted and also pushed into the carriage. The handle 101 is rotated in the reverse direction again to re-lock between the platform slideway 102 and the load platform 5 to prevent the load platform 5 from sliding along the platform slideway 102 inside the carriage. Finally, the hydraulic lifting push rod 202 is controlled again to lift the steering wheel 8 until it is separated from the upper surface of the carriage to prevent the entire device from moving inside the carriage.

[0035] The above description is only the preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A portable electric hydraulic lift, comprising a loading structure (1), a lifting system (2) and an electrical system (3); the loading structure (1) comprises a platform slideway (102) and a handle (101), characterized in that: The table slideway (102) is provided with a locking mechanism (4) on both sides thereof. The locking mechanism (4) is provided with at least one movable opening (401) on the outer side thereof. A limit stopper (402) is provided inside the movable opening (401). A connecting rod (403) is installed inside the locking mechanism (4). The connecting rod (403) is provided with the same number of locking magnetic poles (404) and movable magnetic poles (405) having opposite magnetic poles in alternation. The connecting rod (403) is connected to the handle (101). The handle (101) can rotate along the axis. When the handle (101) rotates, the connecting rod (403) moves together inside the locking mechanism (4). The limit stopper (402) is close to the locking mechanism (4). A fixed magnet (406) is provided at one end of the connecting rod (403), the magnetic pole of the fixed magnet (406) is opposite to that of the movable magnetic pole (405), and the limit plug (402) has a degree of freedom of movement in the locking mechanism (4); a loading platform (5) is installed above the table slideway (102), and limit holes (501) are designed on both sides of the loading platform (5), the limit holes (501) and the movable opening (401) are of the same size and located on the same horizontal plane, the number of the limit holes (501) and the movable opening (401) are the same, and when the loading platform (5) is in a non-moving state in the horizontal direction, the position of the limit holes (501) corresponds to that of the movable opening (401); The object carrying platform (5) is divided into a locked state and an active state. When the object carrying platform (5) is in the locked state, the position of the active opening (401) corresponds to the locked magnetic pole (404), and the limit stopper (402) is subjected to a repulsive force; When the object loading platform (5) is in an active state, the position of the active opening (401) corresponds to the active magnetic pole (405), and the limit stopper (402) is subjected to suction.

2. A portable electric hydraulic lift vehicle according to claim 1, characterized in that: The center line of the stopper (402) and the connecting rod (403) are perpendicular on a horizontal plane, the length of the stopper (402) is greater than the depth of the movable opening (401) and less than the distance from the outer surface of the connecting rod (403) to the stopper hole (501), and the diameter of the stopper (402) is the same as the diameters of the movable opening (401) and the stopper hole (501).

3. A portable electric hydraulic lift vehicle according to claim 1, characterized in that: The handle (101) and the connecting rod (403) are connected via a connecting rod (403) transmission mechanism or a pulley mechanism.

4. A portable electric hydraulic lift vehicle according to claim 1, characterized in that: A push rod (6) is arranged above the loading platform (5), a fixing rod (602) is fixedly arranged on the upper surface of the loading platform (5), a pressure rod (601) is fixedly connected in the middle of the push rod (6), and a circular arc is designed at the bottom of the pressure rod (601), and the diameter of the circular arc is the same as the diameter of the fixing rod (602).

5. A portable electric hydraulic lift vehicle according to claim 4, characterized in that: Clamps (603) are provided at both left and right ends of the push rod (6), and the clamps (603) limit the position of the push rod (6) in the horizontal direction. A rotating shaft (604) is provided in the middle of the clamp (603), and the rotating shaft (604) passes through the clamp (603) and the push rod (6), and the push rod (6) has a degree of freedom of rotation along the center line of the rotating shaft (604).

6. The portable electric hydraulic lift vehicle according to claim 1, characterized in that: The lifting system (2) comprises a loading platform (5), a scissor fork (201) and a hydraulic lifting push rod (202); the electrical system (3) comprises an electrical box (301), a battery (302), a lifting switch (303), a power switch (304), a charging socket (305) and a power display screen (306); the scissor fork (201) and the hydraulic lifting push rod (202) are fixedly connected below the table slide (102); the hydraulic lifting push rod (202) is controlled by the electrical box (301); when the hydraulic lifting push rod (202) is in operation, it pushes the table slide (102) to move in a vertical direction.

7. A portable electric hydraulic lift vehicle according to claim 6, characterized in that: The lower end of the scissor fork (201) is fixedly connected to a frame chassis (7), and steering wheels (8) are installed on the left and right sides of the loading platform (5). The number of steering wheels (8) is four. When the loading platform (5) is not raised, the steering wheels (8) contact the ground, driving the device to move on the ground.

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