Lifting telescopic hard arm structure

Abstract

The utility model discloses a lifting telescopic hard arm structure. The lifting telescopic hard arm structure comprises a base and a telescopic mechanism, a rotating groove is formed in the middle of the upper surface of the base, the inner wall of the rotating groove is rotationally connected with a stand column through a bearing, the bottom end of the stand column is rotationally connected with the bottom wall of the base, the top end of the stand column is fixedly connected with a fixing column, and an avoiding groove is formed in the upper end of the fixing column; the telescopic mechanism comprises a fixed shell, sliding rails, a sliding plate and pulleys, the fixed shell is rotationally connected between the front inner wall and the rear inner wall of the receding groove through a pin shaft, the four sliding rails are arranged on the outer surface of the fixed shell, and the pulleys are slidably connected to the inner walls of the four sliding rails. By means of the technical scheme, the hard arm can hoist goods more rapidly and efficiently, the precision is high, meanwhile, the friction resistance of the hard arm during stretching and retracting can be reduced, and the stability and efficiency during stretching and retracting are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a lifting and telescopic hard arm structure. Background Art

[0002] Lifting telescopic rigid arm structures are commonly found in the fields of hoisting, construction and material handling, because they can effectively handle various heavy objects or cargoes. In hoisting operations, lifting telescopic rigid arm structures can safely lift and move heavy equipment or building materials. In construction, it can be used to build and adjust components of building structures. In the field of material handling, it can be used to quickly and accurately move cargo to a designated location, making it very popular in the engineering and industrial fields.

[0003] The traditional lifting and telescopic rigid arm structure uses a hydraulic system to achieve lifting and telescopic functions;

[0004] The traditional lifting telescopic hard arm structure has the following problems: the response speed of the hydraulic system is relatively slow, which will also limit the accuracy of the hydraulic cylinder. In some applications that require fast response and precise control, the hydraulic system may not be able to meet the requirements, resulting in low accuracy. In addition, the hydraulic system needs to transmit pressure changes through hydraulic oil. This delay may affect the smoothness and accuracy of the movement. For this reason, we propose a lifting telescopic hard arm structure. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a lifting and telescopic hard arm structure, which can achieve a fast response to the extension and retraction time of the hard arm, so that the hard arm can lift the goods more quickly and efficiently, and has higher precision, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting telescopic hard arm structure, comprising a base and a telescopic mechanism;

[0007] Base: A rotation groove is opened in the middle of its upper surface, the inner wall of the rotation groove is rotatably connected with a column through a bearing, the bottom end of the column is rotatably connected with the bottom wall of the base, the top end of the column is fixedly connected with a fixed column, and an avoidance groove is opened at the upper end of the fixed column;

[0008] Telescopic mechanism: It includes a fixed shell, a slide rail, a skateboard and a pulley. The fixed shell is rotatably connected between the front and rear inner walls of the avoidance groove through a pin shaft. Four slide rails are provided on the outer surface of the fixed shell. The inner walls of the four slide rails are slidably connected with pulleys. One end of the four pulleys close to the center of the fixed shell is rotatably connected to the adjacent surface of a skateboard through a pin shaft. It can achieve a fast response to the telescopic time of the hard arm, making the hard arm's lifting action on the cargo more rapid and efficient, and with higher precision. At the same time, it can reduce the friction resistance of the hard arm during telescopic extension and retraction, and ensure the stability and efficiency during telescopic extension.

[0009] Furthermore, it also includes a single-chip microcomputer, which is arranged on the right side of the fixing column. The input end of the single-chip microcomputer is electrically connected to an external power supply to facilitate the regulation of the operation of various electrical appliances.

[0010] Furthermore, the telescopic mechanism also includes a fixed block, a mounting groove and a self-locking hook. The fixed block is fixedly connected to the right end of the slide plate. The interior of the fixed block is provided with a mounting groove, and the interior of the mounting groove is provided with a self-locking hook for easy connection with the cargo.

[0011] Furthermore, the telescopic mechanism also includes an outer shell and a screw, the outer shell is fixedly connected to the left side of the fixed outer shell, the left inner wall of the outer shell is rotatably connected to the screw, the right end of the screw extends to the interior of the fixed outer shell, and the right end of the screw is threadedly connected to the middle part of the slide plate to drive the sliding telescopic movement.

[0012] Furthermore, the telescopic mechanism also includes a motor 1, a worm 1 and a worm wheel 1. The motor 1 is installed on the front side of the shell by bolts. The rear end of the output shaft of the motor 1 is fixedly connected to the worm 1. The worm wheel 1 is fixedly sleeved on the left end of the screw. The worm wheel 1 is meshingly connected with the worm 1. The input end of the motor 1 is electrically connected to the output end of the single-chip microcomputer to drive the telescopic mechanism to operate, and through the worm wheel and worm transmission, it can accurately maintain the current position after stopping moving.

[0013] Furthermore, it also includes a first support plate, which is fixedly connected to the left side of the fixed column, and the upper surface of the first support plate is fixedly connected to a U-shaped seat 1, the interior of the U-shaped seat 1 is rotatably connected to an electric push rod via a pin shaft, the telescopic end of the electric push rod is rotatably connected to a U-shaped seat 3 via a pin shaft, and the top of the U-shaped seat 3 is fixedly connected to the lower surface of the outer shell to facilitate the adjustment of the tilt angle.

[0014] Furthermore, it also includes motor 2 and worm gear 2, wherein motor 2 is installed on the front side of the base by bolts, and the rear end of the output shaft of motor 2 is fixedly connected with worm gear 2, and worm gear 2 is fixedly sleeved on the bottom end of the column, worm gear 2 is located inside the base, worm gear 2 is meshed with worm gear 2, and the input end of motor 2 is electrically connected to the output end of the single-chip microcomputer to drive the rotation angle.

[0015] Furthermore, it also includes a U-shaped seat 2 and a second support plate, the second support plate is rotatably connected between the front and rear inner walls of the lower end of the avoidance groove through a pin shaft, the U-shaped seat 2 is fixedly connected to the lower surface of the right end of the fixed shell, and the interior of the U-shaped seat 2 is rotatably connected to the right end of the second support plate through a pin shaft, thereby reducing the shaking and instability of the fixed shell during rotation.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the lifting telescopic hard arm structure has the following advantages:

[0017] 1. When the fixed shell rotates, the second support plate rotates with the fixed shell, and takes the pin shaft at the avoidance groove as the center, which can help balance the center of gravity of the fixed shell, reduce the shaking and instability of the hard arm during work, and ensure the safety of the goods.

[0018] 2. The operation of motor 1 is controlled by the single-chip microcomputer. The output shaft of motor 1 drives worm 1 to rotate. Worm 1 meshes and rotates with worm wheel 1, so that worm wheel 1 drives the screw to rotate. The screw rotates and is threadedly connected to the slide plate, thereby driving the slide plate to move right along the axis of the screw. When the slide plate moves, it slides in four adjacent slide rails through four pulleys to reduce friction resistance during sliding, ensure stability and efficiency during extension and retraction, and then connect the self-locking hook to the cargo to lift the cargo, thereby achieving a fast response to the extension and retraction time of the hard arm, making the hard arm's lifting action on the cargo faster and more efficient, and with higher precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model in a front side section;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0022] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0023] In the figure: 1 base, 2 rotating groove, 3 column, 4 fixed column, 5 first support plate, 6 U-shaped seat 1, 7 electric push rod, 8 telescopic mechanism, 801 motor 1, 802 housing, 803 fixed housing, 804 slide rail, 805 slide plate, 806 fixed block, 807 mounting groove, 808 self-locking hook, 809 worm 1, 810 worm wheel 1, 811 screw, 812 pulley, 9 avoidance groove, 10 U-shaped seat 2, 11 second support plate, 12 single chip microcomputer, 13 motor 2, 14 worm wheel 2, 15 worm 2, 16 U-shaped seat 3. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 ,This embodiment provides a technical solution: a lifting telescopic hard arm structure, including a base 1 and a telescopic mechanism 8;

[0026] Base 1: A rotating groove 2 is opened in the middle of its upper surface, and the inner wall of the rotating groove 2 is rotatably connected to a column 3 through a bearing, and the bottom end of the column 3 is rotatably connected to the bottom wall of the base 1. It also includes a motor 13 and a worm gear 14. The motor 13 is installed on the front side of the base 1 through bolts, and the rear end of the output shaft of the motor 13 is fixedly connected to a worm 15. The worm gear 14 is fixedly sleeved on the bottom end of the column 3. The worm gear 14 is located inside the base 1, and the worm gear 14 is meshed with the worm 15. The input end of the motor 13 is electrically connected to the output end of the single-chip computer 12. The top of the column 3 is fixedly connected to a fixed column 4, and also includes a single-chip computer 12. The single-chip computer 12 is arranged on the right side of the fixed column 4, and the input end of the single-chip computer 12 is electrically connected to an external power supply. It also includes a first support plate 5, which is fixedly connected to the left side of the fixed column 4, and a U-shaped seat 1 6 is fixedly connected to the upper surface of the first support plate 5. The interior of the U-shaped seat 1 6 is rotatably connected to an electric push rod 7 through a pin shaft, and the telescopic end of the electric push rod 7 is rotatably connected to a U-shaped seat 3 16 through a pin shaft, and the top of the U-shaped seat 3 16 is fixedly connected to the lower surface of the shell 802. The upper end of the fixed column 4 is provided with an avoidance groove 9, and also includes a U-shaped seat 2 10 and a second support plate 11, and the second support plate 11 is rotatably connected between the front and rear inner walls of the lower end of the avoidance groove 9 through a pin shaft, and the U-shaped seat 2 10 is fixedly connected to the lower surface of the right end of the fixed shell 803, and the interior of the U-shaped seat 2 10 is rotatably connected to the right end of the second support plate 11 through a pin shaft;

[0027] Telescopic mechanism 8: It includes a fixed shell 803, a slide rail 804, a slide plate 805 and a pulley 812. The fixed shell 803 is rotatably connected between the front and rear inner walls of the avoidance groove 9 through a pin shaft. Four slide rails 804 are provided on the outer surface of the fixed shell 803. The inner walls of the four slide rails 804 are slidably connected with pulleys 812. One end of the four pulleys 812 close to the center of the fixed shell 803 is rotatably connected to the adjacent surface of a slide plate 805 through a pin shaft. The telescopic mechanism 8 also includes a fixed block 806, a mounting groove 807 and a self-locking hook 808. The fixed block 806 is fixedly connected to the right end of the slide plate 805. The interior of the fixed block 806 is provided with a mounting groove 807. The interior of the mounting groove 807 is provided with a self-locking hook 808. The telescopic mechanism 8 also includes a shell 802 and a screw 811. The shell 802 is fixedly connected to the left side of the fixed shell 803. The left inner wall of the shell 802 is rotatably connected with the screw 811. The right end of the screw 811 extends to the inside of the fixed shell 803. The right end of the screw 811 is threadedly connected to the middle part of the slide plate 805. The telescopic mechanism 8 also includes a motor 801, a worm 809 and a worm wheel 810. The motor 801 is installed on the front side of the shell 802 by bolts. The rear end of the output shaft of the motor 801 is fixedly connected with the worm 809. The worm wheel 810 is fixedly sleeved on the left end of the screw 811. The worm wheel 810 is meshedly connected with the worm 809. The input end of the motor 801 is electrically connected to the output end of the single-chip computer 12.

[0028] The working principle of a lifting telescopic hard arm structure provided by the utility model is as follows: first, the base 1 is installed to the required location through the mounting hole on the base 1. When the angle needs to be adjusted according to the cargo, the single-chip microcomputer 12 is used to control the operation of the motor 2 13. The output shaft of the motor 2 13 drives the worm 2 15 to rotate. The worm 2 15 meshes and rotates with the worm gear 2 14, so that the worm gear 2 14 rotates. The worm gear 2 14 drives the column 3 to rotate in the rotating groove 2 through the bearing to adjust the angle. When it is necessary to lift the cargo, the single-chip microcomputer 12 is used to control the operation of the electric push rod 7. The telescopic end of the electric push rod 7 pushes the U-shaped seat 3 16 and rotates a certain angle as the center of the pin shaft at the U-shaped seat 3 16. Then, as the U-shaped seat 3 16 moves, it drives the shell 802 and the fixed shell 803 to rotate around the pin shaft at the avoidance groove 9 to perform a tilt angle, which is convenient for subsequent lifting of the cargo. However, the U-shaped seat 3 16 pushed by the telescopic end of the electric push rod 7 is simultaneously rotated with the U-shaped seat 6 The second support plate 11 rotates a certain angle around the pin shaft at the avoidance groove 9 to avoid rotation. When the fixed shell 803 rotates, the second support plate 11 rotates with the fixed shell 803 and takes the pin shaft at the avoidance groove 9 as the center, which can help balance the center of gravity of the fixed shell 803, reduce shaking and instability during work, and ensure the safety of the goods. Then, the single-chip microcomputer 12 is used to control the operation of the motor 801, and the output shaft of the motor 801 drives the worm 809 to rotate. The worm 809 meshes and rotates with the worm wheel 810, so that the worm wheel 810 drives the screw 811 to rotate. The screw 811 rotates and is threadedly connected with the slide plate 805, thereby driving the slide plate 805 to move rightward along the axis of the screw 811. When the slide plate 805 moves, it slides in the four adjacent slide rails 804 through the four pulleys 812, thereby reducing the friction resistance during sliding and ensuring the stability and efficiency during extension and retraction. Then, the self-locking hook 808 is connected to the goods to lift the goods.

[0029] It is worth noting that the specific model of the single chip microcomputer 12 disclosed in the above embodiment is S7-200, and it is recommended to use D180M-0160030B-E for motor 1 801 and motor 2 13, and SM-38STG-1000N for electric push rod 7. The single chip microcomputer 12 controls the operation of electric push rod 7, motor 1 801 and motor 2 13 using methods commonly used in the prior art.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lifting and telescopic rigid arm structure, characterized in that: It comprises a base (1) and a telescopic mechanism (8); The base (1) has a rotation groove (2) in the middle of its upper surface, the inner wall of the rotation groove (2) is rotatably connected to a column (3) via a bearing, the bottom end of the column (3) is rotatably connected to the bottom wall of the base (1), the top end of the column (3) is fixedly connected to a fixed column (4), and the upper end of the fixed column (4) is provided with an avoidance groove (9); The telescopic mechanism (8) comprises a fixed shell (803), a slide rail (804), a slide plate (805) and a pulley (812). The fixed shell (803) is rotatably connected between the front and rear inner walls of the avoidance groove (9) via a pin shaft. Four slide rails (804) are provided on the outer surface of the fixed shell (803). The inner walls of the four slide rails (804) are all slidably connected to pulleys (812). One end of each of the four pulleys (812) close to the center of the fixed shell (803) is rotatably connected to the adjacent surface of a slide plate (805) via a pin shaft.

2. A lifting and telescopic rigid arm structure according to claim 1, characterized in that: It also includes a single-chip microcomputer (12), which is arranged on the right side of the fixing column (4), and an input end of the single-chip microcomputer (12) is electrically connected to an external power supply.

3. The lifting and telescopic rigid arm structure according to claim 1, characterized in that: The telescopic mechanism (8) further comprises a fixed block (806), a mounting groove (807) and a self-locking hook (808); the fixed block (806) is fixedly connected to the right end of the slide plate (805); the fixing block (806) is provided with a mounting groove (807) inside, and the mounting groove (807) is provided with a self-locking hook (808) inside.

4. A lifting and telescopic rigid arm structure according to claim 2, characterized in that: The telescopic mechanism (8) further comprises a housing (802) and a screw (811); the housing (802) is fixedly connected to the left side surface of the fixed housing (803); the left inner wall of the housing (802) is rotatably connected to the screw (811); the right end of the screw (811) extends into the interior of the fixed housing (803); and the right end of the screw (811) is threadedly connected to the middle portion of the slide plate (805).

5. A lifting and telescopic rigid arm structure according to claim 4, characterized in that: The telescopic mechanism (8) further comprises a motor (801), a worm (809) and a worm wheel (810); the motor (801) is mounted on the front side of the housing (802) by means of bolts; the rear end of the output shaft of the motor (801) is fixedly connected to the worm (809); the worm wheel (810) is fixedly sleeved on the left end of the screw (811); the worm wheel (810) is meshingly connected to the worm (809); and the input end of the motor (801) is electrically connected to the output end of the single-chip computer (12).

6. A lifting and telescopic rigid arm structure according to claim 4, characterized in that: It also includes a first support plate (5), the first support plate (5) is fixedly connected to the left side of the fixed column (4), the upper surface of the first support plate (5) is fixedly connected to a U-shaped seat 1 (6), the interior of the U-shaped seat 1 (6) is rotatably connected to an electric push rod (7) via a pin shaft, the telescopic end of the electric push rod (7) is rotatably connected to a U-shaped seat 3 (16) via a pin shaft, and the top end of the U-shaped seat 3 (16) is fixedly connected to the lower surface of the housing (802).

7. The lifting and telescopic rigid arm structure according to claim 2, characterized in that: It also includes a second motor (13) and a second worm gear (14), wherein the second motor (13) is mounted on the front side of the base (1) by bolts, the rear end of the output shaft of the second motor (13) is fixedly connected to the second worm gear (15), the second worm gear (14) is fixedly sleeved on the bottom end of the column (3), the second worm gear (14) is located inside the base (1), the second worm gear (14) is meshedly connected with the second worm gear (15), and the input end of the second motor (13) is electrically connected to the output end of the single-chip computer (12).

8. The lifting and telescopic rigid arm structure according to claim 1, characterized in that: It also includes a U-shaped seat (10) and a second support plate (11), wherein the second support plate (11) is rotatably connected between the front and rear inner walls of the lower end of the avoidance groove (9) via a pin shaft, the U-shaped seat (10) is fixedly connected to the lower surface of the right end of the fixed shell (803), and the interior of the U-shaped seat (10) is rotatably connected to the right end of the second support plate (11) via a pin shaft.

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