Hydraulic telescopic arm of electric forklift loader

Abstract

The utility model relates to the technical field of forklift trucks, in particular to a hydraulic telescopic boom of an electric forklift truck, which not only can adjust the support of the hydraulic telescopic boom according to different lengths and rotation angles of the telescopic boom and improve the stability of the telescopic boom, but also can adjust the pitching angle of a pallet fork and facilitate loading and lifting of different cargoes. Comprising a body; the loading vehicle further comprises a connecting mechanism, two telescopic mechanisms, two supporting mechanisms, a loading mechanism and a pitching mechanism, the connecting mechanism is installed on the vehicle body and drives the telescopic arm to rotate, the two telescopic mechanisms are both installed on the connecting mechanism and drive the telescopic arm to stretch out and draw back, and the two supporting mechanisms are both installed on the vehicle body and assist the connecting mechanism in rotating. The loading mechanism is installed on the two telescopic mechanisms and facilitates loading of goods, and the pitching mechanism is installed on the loading mechanism and adjusts the angle of the loading mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a hydraulic telescopic arm of an electric forklift. Background Art

[0002] Forklifts are still an emerging business in my country. The function of forklifts is to be used in loading and unloading, stacking and short-distance transportation operations on industrial handling vehicles. Forklifts are a special type of engineering machinery that can load all goods onto the forklift without the need for a large number of machines. It has strong flexibility and can be loaded and unloaded in multiple different locations.

[0003] Existing hydraulic telescopic arms for forklifts, such as the telescopic arm forklift disclosed in the utility model patent application number 202220223523.2, have a main structure including a body, a multi-stage telescopic arm mounted on the upper portion of the body, a fork mounted at the end of the multi-stage telescopic arm via a fixed frame, a rotating block, and a mounting plate, a second hydraulic telescopic rod for adjusting the angle of the fork fixedly connected to the upper surface of the fixed frame, and a storage bucket mounted on the left side of the body, the upper surface and left side of the storage bucket being open, and an arc-shaped cover being provided on the left side; during use, the positioning screw is loosened to rotate the arc-shaped cover counterclockwise under natural gravity, and then the machine can be started, the multi-stage telescopic arm is rotated, and the multi-stage telescopic arm is extended to operate with the fork; after the operation is completed, the fork and the mounting plate are retracted together into the storage bucket, and then the rotating handle is gripped to rotate the arc-shaped cover clockwise with the bearing as the reference point, and then the positioning screw and the top plate are used to press the arc-shaped cover tightly to cover the fork from the left side.

[0004] However, the support points of the existing hydraulic telescopic arms of forklifts are mostly fixed, and the support for the telescopic wall cannot be adjusted according to the lifting height and cargo weight, which increases the tension received by the telescopic arm. In addition, the fork is difficult to adjust the angle, making it inflexible to use. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a hydraulic telescopic arm for an electric forklift that can not only adjust the support of the telescopic arm according to the different lengths and rotation angles of the telescopic arm, thereby improving the stability of the telescopic arm, but also adjust the pitch angle of the fork to facilitate loading and lifting of different goods.

[0006] The utility model relates to a hydraulic telescopic arm of an electric forklift, comprising a vehicle body; a connecting mechanism, two sets of telescopic mechanisms, two sets of supporting mechanisms, a loading mechanism and a pitching mechanism. The connecting mechanism is mounted on the vehicle body and drives the telescopic arm to rotate, the two sets of telescopic mechanisms are both mounted on the connecting mechanism and drive the telescopic arm to extend and retract, the two sets of supporting mechanisms are both mounted on the vehicle body and assist the connecting mechanism in rotating, the loading mechanism is mounted on the two sets of telescopic mechanisms and facilitates loading of goods, and the pitching mechanism is mounted on the loading mechanism and adjusts the angle of the loading mechanism. According to the demand for loading goods according to needs, the two sets of telescopic mechanisms push the loading mechanism to load the goods, and the angle of the loading mechanism can be adjusted by the pitching mechanism to facilitate the lifting of different goods. By setting the supporting mechanism, the support for the connecting mechanism can be adjusted at any time according to the weight of the goods, thereby improving the stability of the connecting mechanism during the rotation process.

[0007] Preferably, the connecting mechanism includes a drive system, a rotating shaft, two sets of telescopic arms, a connecting rod and two sets of pallets. The drive system is installed on the vehicle body, the rotating shaft is rotatably installed on the drive system, the two sets of telescopic arms are installed on the rotating shaft, the connecting rod is installed between the two sets of telescopic arms, the two sets of pallets are respectively installed at the bottom ends of the two sets of telescopic arms, and grooves are provided inside the two sets of pallets; the vehicle body provides power for the drive system, the drive system drives the rotating shaft to rotate, and the rotating shaft drives the two sets of telescopic arms to rotate, and the forks are loaded onto the loading mechanism as needed and the goods are moved to the designated position. The connection between the two sets of telescopic arms can be enhanced by setting the connecting rod.

[0008] Preferably, the telescopic mechanism includes a hydraulic cylinder 1, a fixed seat, a fixing bolt and a connecting head. The bottom end of the hydraulic cylinder 1 is connected to the top of the telescopic arm. The fixed seat is installed at the front end of the connecting rod. The fixing bolt is rotatably installed on the fixed seat and connected to the hydraulic cylinder 1. The connecting head is installed at the front end of the connecting rod. The two sets of telescopic mechanisms are respectively installed on the two sets of connecting rods; the loading mechanism is installed on the connecting head, and the hydraulic cylinder 1 is extended and retracted to pull the fixed seat and the fixing bolt according to loading needs, and the fixed seat drives the front end of the connecting rod to extend and retract.

[0009] Preferably, the supporting mechanism includes a reducer, a baffle, a screw, a slider, a hydraulic cylinder 2, a roller shaft and a rib plate. The reducer is installed on the vehicle body, the baffle is installed on the vehicle body, the screw is rotatably installed on the baffle plate, the slider is slidably installed on the screw, the bottom end of the hydraulic cylinder 2 is connected to the top end of the slider, the roller shaft is rotatably installed on the top end of the hydraulic cylinder 2 and slidably installed in the card plate, and the bottom end of the rib plate is connected to the top end of the slider; the vehicle body has a built-in control system, which drives the reducer according to the rotation angle of the telescopic arm, and the reducer drives the screw to rotate, and the screw slides back and forth in the baffle plate, the slider drives the hydraulic cylinder 2 to move, and the hydraulic cylinder 2 drives the roller shaft to move back and forth. The back and forth movement of the hydraulic cylinder 2 cooperates with its telescopic lifting and retracting, so that the roller shaft slides in the card plate, thereby supporting the connecting rod in accordance with the angle of the connecting rod, and the stability of the hydraulic cylinder 2 is improved by setting the rib plate.

[0010] Preferably, the loading mechanism includes two sets of joints, two sets of connecting bolts, a connecting plate and two sets of forks, the two sets of joints are respectively inserted into the two sets of connecting heads, the two sets of connecting bolts rotatably connect the two sets of joints and the two sets of connecting heads respectively, the connecting plates are installed on the two sets of joints, and the two sets of forks are installed on the connecting plates; by setting the two sets of joints and the two sets of connecting bolts, the loading mechanism is rotatably connected to the connecting heads, the two sets of forks are inserted into the bottom end of the cargo, and the cargo is conveniently fixed and blocked by the connecting plate to prevent the cargo from falling.

[0011] Preferably, the pitch mechanism includes a support rod, two sets of cylinders and two sets of connecting seats. The support rod is rotatably installed between the two sets of connecting heads. The two sets of cylinders are installed on the support rod. The two sets of connecting seats are installed on the connecting plate and are rotatably connected to the two sets of cylinders respectively. When the two sets of cylinders are started, the two sets of cylinders push the two sets of connecting seats to lift the connecting plate upward, making it convenient for the goods to approach the connecting plate and prevent the goods from falling during the lifting process. When unloading is required, the two sets of cylinders are retracted to tilt the connecting plate downward to facilitate unloading of the goods.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: according to the need to load goods, the two sets of telescopic mechanisms push the loading mechanism to load the goods, the angle of the loading mechanism can be adjusted by the pitch mechanism, which is convenient for lifting different goods, and by setting the support mechanism, the support of the connecting mechanism can be adjusted at any time according to the weight of the goods, thereby improving the stability of the connecting mechanism during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an axonometric structural diagram of the present utility model;

[0014] Figure 2 This is a schematic diagram of the axonometric structure of the connection mechanism of the utility model;

[0015] Figure 3 This is a partially enlarged axonometric structural diagram of the telescopic mechanism of the utility model;

[0016] Figure 4 This is a partially enlarged cross-sectional axonometric structural diagram of the support mechanism of the utility model;

[0017] Figure 5 It is a partially enlarged axonometric structural diagram of the loading mechanism and the pitching mechanism of the utility model.

[0018] Markings in the accompanying drawings: 01, vehicle body; 02, connecting mechanism; 21, driving system; 22, rotating shaft; 23, telescopic arm; 24, connecting rod; 25, clamping plate; 03, telescopic mechanism; 31, hydraulic cylinder 1; 32, fixing seat; 33, fixing bolt; 34, connecting head; 04, supporting mechanism; 41, reducer; 42, baffle; 43, screw; 44, slider; 45, hydraulic cylinder 2; 46, roller; 47, rib; 05, loading mechanism; 51, joint; 52, connecting bolt; 53, connecting plate; 54, fork; 06, pitching mechanism; 61, support rod; 62, cylinder; 63, connecting seat. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention. Example

[0020] The utility model is an electric forklift hydraulic telescopic arm, including a vehicle body 01; further comprising a connecting mechanism 02, two sets of telescopic mechanisms 03, two sets of supporting mechanisms 04, a loading mechanism 05 and a pitching mechanism 06. The connecting mechanism 02 is mounted on the vehicle body 01 and drives the telescopic arm to rotate; the two sets of telescopic mechanisms 03 are both mounted on the connecting mechanism 02 and drive the telescopic arm to extend and retract; the two sets of supporting mechanisms 04 are both mounted on the vehicle body 01 and assist the connecting mechanism 02 in rotating; the loading mechanism 05 is mounted on the two sets of telescopic mechanisms 03 and facilitates loading of goods; the pitching mechanism 06 is mounted on the loading mechanism 05 and adjusts The angle of the loading mechanism 05; the connecting mechanism 02 includes a drive system 21, a rotating shaft 22, two sets of telescopic arms 23, a connecting rod 24 and two sets of card plates 25, the drive system 21 is installed on the vehicle body 01, the rotating shaft 22 is rotatably installed on the drive system 21, the two sets of telescopic arms 23 are installed on the rotating shaft 22, the connecting rod 24 is installed between the two sets of telescopic arms 23, the two sets of card plates 25 are respectively installed at the bottom ends of the two sets of telescopic arms 23, and the interiors of the two sets of card plates 25 are grooved; the telescopic mechanism 03 includes a hydraulic cylinder 31, a fixing seat 32, a fixing bolt 33 and a connecting head 34, a hydraulic cylinder 3 The bottom end of 1 is connected to the top of the telescopic arm 23, the fixing seat 32 is installed on the front end of the connecting rod 24, the fixing bolt 33 is rotatably installed on the fixing seat 32 and connected to the hydraulic cylinder 1 31, the connecting head 34 is installed on the front end of the connecting rod 24, and the two sets of telescopic mechanisms 03 are respectively installed on the two sets of connecting rods 24; the supporting mechanism 04 includes a reducer 41, a baffle 42, a screw 43, a slider 44, a hydraulic cylinder 2 45, a roller 46 and a rib 47, the reducer 41 is installed on the vehicle body 01, the baffle 42 is installed on the vehicle body 01, the screw 43 is rotatably installed on the baffle 42, and the slider 44 slides The loading mechanism 05 is mounted on the lead screw 43. The bottom end of the second hydraulic cylinder 45 is connected to the top end of the slider 44. The roller 46 is rotatably mounted on the top end of the second hydraulic cylinder 45 and slidably mounted in the clamping plate 25. The bottom end of the rib 47 is connected to the top end of the slider 44. The loading mechanism 05 includes two sets of joints 51, two sets of connecting bolts 52, a connecting plate 53 and two sets of forks 54. The two sets of joints 51 are respectively inserted into the two sets of connecting heads 34. The two sets of connecting bolts 52 respectively rotatably connect the two sets of joints 51 and the two sets of connecting heads 34. The connecting plate 53 is mounted on the two sets of joints 51, and the two sets of forks 54 are both mounted on the connecting plate 53.When it is working, first, the vehicle body 01 provides power to the drive system 21, and the drive system 21 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the two sets of telescopic arms 23 to rotate, and the forks are loaded onto the loading mechanism 05 as needed and the goods are moved to the designated position. By setting the connecting rod 24, the connection between the two sets of telescopic arms 23 can be strengthened. According to the loading needs, the hydraulic cylinder 31 is extended and retracted to pull the fixed seat 32 and the fixed bolt 33, and the fixed seat 32 drives the front end of the connecting rod 24 to extend and retract. By setting two sets of joints 51 and two sets of connecting bolts 52, the loading mechanism 05 is rotatably connected to the connecting head 34. The two sets of forks 54 are inserted into the bottom of the goods, and the connecting plate 53 is used to fix and block the goods to prevent them from falling. The two sets of cylinders 62 are started, and the two sets of cylinders 62 push the two sets of connecting seats 63 to lift the connecting plate 53 upward, making it convenient for the goods to approach the connecting plate 53 and prevent the goods from falling during the lifting process. When unloading is required, the two sets of cylinders 62 are retracted to tilt the connecting plate 53 downward to facilitate the unloading of the goods. ; Example

[0021] like Figures 1 to 5As shown, the utility model is an electric forklift hydraulic telescopic arm, based on Example 1; the pitching mechanism 06 includes a support rod 61, two groups of cylinders 62 and two groups of connecting seats 63, the support rod 61 is rotatably installed between the two groups of connecting heads 34, the two groups of cylinders 62 are both installed on the support rod 61, and the two groups of connecting seats 63 are both installed on the connecting plate 53 and are rotatably connected to the two groups of cylinders 62 respectively; when it is working, first, the vehicle body 01 provides power for the drive system 21, the drive system 21 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the two groups of telescopic arms 23 to rotate, and the forks are loaded onto the loading mechanism 05 as needed and the goods are moved to the designated position. By setting the connecting rod 24, the connection between the two groups of telescopic arms 23 can be strengthened. According to the loading needs, the hydraulic cylinder 31 is telescopically pulled to pull the fixed seat 32 and the fixing bolt 33, and the fixed seat 32 drives the front end of the connecting rod 24 to extend and retract. The vehicle body 01 has a built-in control system, and the control system drives the vehicle body 01 according to the rotation angle of the telescopic arm 23. The reducer 41 drives the screw 43 to rotate, and the screw 43 slides back and forth in the baffle 42. The slider 44 drives the hydraulic cylinder 2 45 to move, and the hydraulic cylinder 2 45 drives the roller 46 to move back and forth. The back and forth movement of the hydraulic cylinder 2 45 cooperates with its telescopic lifting and lowering, so that the roller 46 slides in the card plate 25, thereby supporting the connecting rod 24 in accordance with the angle of the connecting rod 24. The stability of the hydraulic cylinder 2 45 is improved by providing the rib 47. The loading mechanism 05 is rotatably connected to the connecting head 34 by providing two sets of joints 51 and two sets of connecting bolts 52. The two sets of forks 54 are inserted into the bottom of the cargo and are conveniently fixed and blocked by the connecting plate 53 to prevent the cargo from falling. The two sets of cylinders 62 are started, and the two sets of cylinders 62 push the two sets of connecting seats 63 to lift the connecting plate 53 upward, making it convenient for the cargo to approach the connecting plate 53 and prevent the cargo from falling during the lifting process. When unloading is required, the two sets of cylinders 62 are retracted to tilt the connecting plate 53 downward to facilitate unloading of the cargo.

[0022] The reducer 41 of the present invention is purchased on the market, and technicians in this industry only need to install and operate it according to the accompanying instruction manual, without the need for technicians in this field to make creative efforts.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic telescopic arm of an electric forklift, comprising a vehicle body (01); characterized in that: The invention also includes a connecting mechanism (02), two sets of telescopic mechanisms (03), two sets of supporting mechanisms (04), a loading mechanism (05) and a pitching mechanism (06). The connecting mechanism (02) is mounted on the vehicle body (01) and drives the telescopic arm to rotate. The two sets of telescopic mechanisms (03) are both mounted on the connecting mechanism (02) and drive the telescopic arm to extend and retract. The two sets of supporting mechanisms (04) are both mounted on the vehicle body (01) and assist the connecting mechanism (02) in rotating. The loading mechanism (05) is mounted on the two sets of telescopic mechanisms (03) and facilitates loading of goods. The pitching mechanism (06) is mounted on the loading mechanism (05) and adjusts the angle of the loading mechanism (05).

2. The hydraulic telescopic arm of an electric forklift according to claim 1, characterized in that: The connecting mechanism (02) includes a driving system (21), a rotating shaft (22), two sets of telescopic arms (23), a connecting rod (24) and two sets of card plates (25). The driving system (21) is mounted on the vehicle body (01), the rotating shaft (22) is rotatably mounted on the driving system (21), the two sets of telescopic arms (23) are both mounted on the rotating shaft (22), the connecting rod (24) is mounted between the two sets of telescopic arms (23), and the two sets of card plates (25) are respectively mounted at the bottom ends of the two sets of telescopic arms (23). The interiors of the two sets of card plates (25) are both provided with grooves.

3. The hydraulic telescopic arm of an electric forklift according to claim 2, characterized in that: The telescopic mechanism (03) includes a hydraulic cylinder (31), a fixing seat (32), a fixing bolt (33) and a connecting head (34). The bottom end of the hydraulic cylinder (31) is connected to the top end of the telescopic arm (23). The fixing seat (32) is installed at the front end of the connecting rod (24). The fixing bolt (33) is rotatably installed on the fixing seat (32) and connected to the hydraulic cylinder (31). The connecting head (34) is installed at the front end of the connecting rod (24). The two sets of telescopic mechanisms (03) are respectively installed on the two sets of connecting rods (24).

4. The hydraulic telescopic arm of an electric forklift according to claim 2, characterized in that: The support mechanism (04) includes a reducer (41), a baffle (42), a lead screw (43), a slider (44), a hydraulic cylinder 2 (45), a roller (46) and a rib (47). The reducer (41) is mounted on the vehicle body (01), the baffle (42) is mounted on the vehicle body (01), the lead screw (43) is rotatably mounted on the baffle (42), the slider (44) is slidably mounted on the lead screw (43), the bottom end of the hydraulic cylinder 2 (45) is connected to the top end of the slider (44), the roller (46) is rotatably mounted on the top end of the hydraulic cylinder 2 (45) and slidably mounted in the card (25), and the bottom end of the rib (47) is connected to the top end of the slider (44).

5. The hydraulic telescopic arm of an electric forklift according to claim 3, characterized in that: The loading mechanism (05) includes two sets of joints (51), two sets of connecting bolts (52), a connecting plate (53) and two sets of cargo forks (54). The two sets of joints (51) are respectively inserted into the two sets of connecting heads (34). The two sets of connecting bolts (52) respectively rotatably connect the two sets of joints (51) and the two sets of connecting heads (34). The connecting plate (53) is installed on the two sets of joints (51). The two sets of cargo forks (54) are both installed on the connecting plate (53).

6. The hydraulic telescopic arm of an electric forklift according to claim 3, characterized in that: The pitch mechanism (06) comprises a support rod (61), two groups of cylinders (62) and two groups of connecting seats (63), wherein the support rod (61) is rotatably mounted between the two groups of connecting heads (34), the two groups of cylinders (62) are both mounted on the support rod (61), and the two groups of connecting seats (63) are both mounted on the connecting plate (53) and are rotatably connected to the two groups of cylinders (62) respectively.

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