CN213294579U

CN213294579U - Hydraulic lifting mechanism of small handcart

Info

Publication number: CN213294579U
Application number: CN202021928188.3U
Authority: CN
Inventors: 王金兰
Original assignee: Wuxi Aeas Hydraulic Machinery Co ltd
Current assignee: Wuxi Aeas Hydraulic Machinery Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-05-28
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a hydraulic lifting mechanism of a small-sized handcart, which structurally comprises a connecting block, a top seat, a telescopic connecting frame, a track groove, a hydraulic lifting column, a hand push rod, a handcart bottom plate, a moving wheel and a connecting seat, the top of the connecting block is vertically connected with the bottom of the top seat, the right end of the connecting block is fixedly connected with the left end of the telescopic connecting frame, the right end of the telescopic connecting frame penetrates through a rail groove to be connected to the inside of the hydraulic lifting column, the rail groove is arranged inside the left end of the hydraulic lifting column, the bottom of the hydraulic lifting column is vertically connected with the top of the connecting seat, the bottom of the connecting seat is welded with the top of the bottom plate of the cart, the moving wheels are sequentially connected into a rectangular structure and are arranged at the bottom of the cart bottom plate, the top of the right end of the cart bottom plate is welded with the bottom of the hand push rod, a telescopic connecting frame is added, the device can stretch out and draw back, can adjust connection length, can improve equipment's practical value like this.

Description

Hydraulic lifting mechanism of small handcart

Technical Field

The utility model relates to a hydraulic pressure lifting mechanism of small-size handcart belongs to hydraulic pressure lifting mechanism field.

Background

The servo motor can control the speed and position accuracy accurately, and can convert the voltage signal into torque and rotating speed to drive a control object. The rotation speed of the rotor of the servo motor is controlled by an input signal and can quickly respond, the servo motor is used as an actuating element in an automatic control system, has the characteristics of small electromechanical time constant, high linearity, starting voltage and the like, and can convert a received electric signal into angular displacement or angular speed on a motor shaft for output. The servo motor is divided into two categories of direct current servo motors and alternating current servo motors, and is mainly characterized in that when the signal voltage is zero, the signal voltage has no autorotation phenomenon, and the rotating speed is reduced at a constant speed along with the increase of the torque.

The prior art discloses the application numbers as follows: CN201720092068.6 the utility model discloses a hydraulic lifting mechanism of a small-sized handcart, which comprises a frame platform, a fork-shaped mechanism and a hydraulic cylinder 3; the frame platform comprises a working platform 1 and a base platform 2 which are both provided with sliding inverted grooves, a fork-shaped mechanism is arranged between the working platform 1 and the base platform 2, the fork-shaped mechanism comprises a first rod 4 and a second rod 5 which are symmetrical and hinged, wherein one side of the fork-shaped mechanism is fixed on the working platform 1 and the base platform 2 in a hinged mode, the end part of the other side of the fork-shaped mechanism is provided with a pulley 6, and the pulley 6 can freely slide in the corresponding sliding inverted groove; the fork-shaped mechanism is provided with a plurality of groups, and hinge joints 7 of the fork-shaped mechanism are hinged through a long shaft; the hydraulic cylinder 3 is arranged on the base platform 2 and pushes the fork-shaped mechanism to move. The utility model discloses a lifting mechanism simple structure, rigidity is stronger, makes and easy to use. The lifting and lowering of the heavy objects are realized through hydraulic power, the labor intensity in the carrying process is reduced, and the potential safety hazard of carrying labor is reduced. However, the prior art is imperfect, the equipment cannot be stretched and the connection length cannot be adjusted, so that the practical value of the equipment can be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hydraulic lifting mechanism of small-size handcart to solve prior art imperfection, this equipment can't stretch out and draw back, can not adjust connection length, can reduce the practical value of equipment like this.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a hydraulic lifting mechanism of small-size handcart, its structure includes connecting block, footstock, flexible link, track groove, hydraulic pressure lifting column, handspike, shallow bottom plate, removal wheel, connecting seat, the connecting block top is connected perpendicularly with the footstock bottom, connecting block right-hand member and flexible link left end fixed connection, flexible link right-hand member runs through inside the track groove is connected to hydraulic pressure lifting column, its characterized in that:

the track groove is formed in the inner portion of the left end of the hydraulic lifting column, the bottom of the hydraulic lifting column is vertically connected with the top of the connecting seat, the bottom of the connecting seat is welded with the top of the bottom plate of the trolley, the moving wheels are sequentially connected into a rectangular structure and arranged at the bottom of the bottom plate of the trolley, and the top of the right end of the bottom plate of the trolley is welded with the bottom of the hand push rod;

the telescopic connection frame is composed of an outer frame, an inner rail, a servo motor, a right connecting block, an external thread connecting rod, a middle translation frame and a through hole, wherein the inner rail is arranged inside the upper end and the lower end of the outer frame, the left end of the servo motor is perpendicularly connected with the right end of the external thread connecting rod, the left end side face of the external thread connecting rod is movably connected with the inside of the right end of the middle translation frame, the through hole is arranged inside the left end of the outer frame, and the left end of the right connecting block is perpendicularly connected with.

Furthermore, the middle translation frame consists of a connecting rod, a limiting block and an internal thread cylinder.

Furthermore, the right end of the connecting rod is welded with the left end of the limiting block.

Furthermore, the right end of the limiting block is vertically connected with the left end of the internal thread cylinder.

Furthermore, the inner part of the right end of the internal thread cylinder is movably connected with the side face of the left end of the external thread connecting rod.

Further, the type of the servo motor is 40DNA-40CB1 AMS.

Further, the moving wheel can increase the convenience of moving the equipment.

The utility model discloses increased flexible link, the device can stretch out and draw back, can adjust connection length, can improve equipment's practical value like this.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a hydraulic lifting mechanism of a small-sized cart according to the present invention.

Fig. 2 is a schematic structural view of the telescopic connection frame of the present invention.

Fig. 3 is a schematic structural view of the intermediate translational frame of the present invention.

In the figure: the device comprises a connecting block-1, a top seat-2, a telescopic connecting frame-3, a track groove-4, a hydraulic lifting column-5, a hand push rod-6, a cart bottom plate-7, a moving wheel-8, a connecting seat-9, an outer frame-301, an inner track-302, a servo motor-303, a right connecting block-304, an external thread connecting rod-305, a middle translation frame-306, a through hole-307, a connecting rod-3061, a limiting block-3062 and an internal thread cylinder-3063.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1, 2 and 3, the present invention provides a hydraulic lifting mechanism for a small-sized cart, which comprises: the hydraulic lifting device structurally comprises a connecting block 1, a top seat 2, a telescopic connecting frame 3, a track groove 4, a hydraulic lifting column 5, a hand push rod 6, a cart bottom plate 7, a moving wheel 8 and a connecting seat 9, wherein the top of the connecting block 1 is vertically connected with the bottom of the top seat 2, the right end of the connecting block 1 is fixedly connected with the left end of the telescopic connecting frame 3, the right end of the telescopic connecting frame 3 penetrates through the track groove 4 to be connected to the inside of the hydraulic lifting column 5, the track groove 4 is arranged in the left end of the hydraulic lifting column 5, the bottom of the hydraulic lifting column 5 is vertically connected with the top of the connecting seat 9, the bottom of the connecting seat 9 is welded with the top of the cart bottom plate 7, the moving wheel 8 is sequentially connected into a rectangular structure and arranged at the bottom of the cart bottom plate; the telescopic connecting frame 3 comprises an outer frame 301, an inner rail 302, a servo motor 303, a right connecting block 304, an external thread connecting rod 305, a middle translation frame 306 and a through hole 307, wherein the inner rail 302 is arranged inside the upper end and the lower end of the outer frame 301, the left end of the servo motor 303 is vertically connected with the right end of the external thread connecting rod 305, the side surface of the left end of the external thread connecting rod 305 is movably connected with the inside of the right end of the middle translation frame 306, the through hole 307 is arranged inside the left end of the outer frame 301, the left end of the right connecting block 304 is vertically connected with the right end of the outer frame 301, the middle translation frame 306 comprises a connecting rod 3061, a limiting block 3062 and an internal thread cylinder 3063, the right end of the connecting rod 3061 is welded with the left end of the limiting block 3062, the right end of the limiting block 3062 is vertically connected with the left end of the internal thread cylinder 3063, the inside of the, the moving wheels 8 can increase the convenience of moving the device.

The control mode of the servo motor is automatically controlled by a controller, a control circuit of the controller can be realized by simple programming of a person skilled in the art, the servo motor belongs to the common knowledge in the field, and the servo motor is mainly used for protecting a mechanical device, so the control mode and the circuit connection are not explained in detail in the invention.

When the hydraulic lifting column device is used, the servo motor 303 is required to drive the external thread connecting rod 305 to rotate, the external thread connecting rod 305 can control the back and forth movement of the internal thread cylinder 3063, the internal thread cylinder 3063 can drive the connecting rod 3061 and the limiting block 3062 to move, the limiting block 3062 moves along the inner track 302 of the outer frame 301, the connecting rod 3061 is connected to the outer portion of the outer frame 301 through the through hole 307, the right connecting block 304 is used for being connected to the inside of the hydraulic lifting column 5, the hydraulic lifting column device can stretch out and draw back, the connecting length can be adjusted, and therefore the.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a hydraulic lifting mechanism of small-size handcart, its structure includes connecting block (1), footstock (2), flexible link (3), track groove (4), hydraulic pressure lifting column (5), handspike (6), shallow bottom plate (7), removal wheel (8), connecting seat (9), connecting block (1) top is connected perpendicularly with footstock (2) bottom, connecting block (1) right-hand member and flexible link (3) left end fixed connection, inside flexible link (3) right-hand member runs through track groove (4) and is connected to hydraulic pressure lifting column (5), its characterized in that:

the track groove (4) is formed in the left end of the hydraulic lifting column (5), the bottom of the hydraulic lifting column (5) is vertically connected with the top of the connecting seat (9), the bottom of the connecting seat (9) is welded with the top of the cart bottom plate (7), the moving wheels (8) are sequentially connected into a rectangular structure and arranged at the bottom of the cart bottom plate (7), and the top of the right end of the cart bottom plate (7) is welded with the bottom of the hand push rod (6);

flexible link (3) comprise frame (301), interior track (302), servo motor (303), right connecting block (304), external screw thread connecting rod (305), middle translation frame (306), through-hole (307), both ends inside is equipped with interior track (302) about frame (301), servo motor (303) left end is connected with external screw thread connecting rod (305) right-hand member is perpendicular, the inside swing joint of external screw thread connecting rod (305) left end side and middle translation frame (306) right-hand member, inside frame (301) left end was located in through-hole (307), right connecting block (304) left end is connected with frame (301) right-hand member is perpendicular.

2. The hydraulic lifting mechanism for a compact hand truck as set forth in claim 1, wherein: the middle translation frame (306) is composed of a connecting rod (3061), a limiting block (3062) and an internal thread cylinder (3063).

3. The hydraulic lifting mechanism for a compact hand truck as set forth in claim 2, wherein: the right end of the connecting rod (3061) is welded with the left end of the limiting block (3062).

4. The hydraulic lifting mechanism for a compact hand truck as set forth in claim 2, wherein: the right end of the limiting block (3062) is vertically connected with the left end of the internal thread cylinder (3063).

5. The hydraulic lifting mechanism for a compact hand truck as set forth in claim 2, wherein: the inner part of the right end of the internal thread cylinder (3063) is movably connected with the side surface of the left end of the external thread connecting rod (305).