Crank arm type lifting platform

Abstract

The utility model belongs to the field of lifting platforms, particularly relates to a crank arm type lifting platform, and aims to solve the problem that the stability is poor due to the fact that only wheels are used for supporting in the prior art. The crank arm type lifting platform is rotationally connected to the top of the lifting platform walking vehicle seat; the number of the connecting seats is two, and the two connecting seats are connected to the two sides of the lifting platform walking vehicle seat through bolts correspondingly; the number of the stabilizing assemblies is two, each stabilizing assembly comprises a small gear, a supporting arm, a guide sleeve, a hydraulic cylinder and a stabilizing disc, the four supporting arms can be driven to rotate through transmission of the structure, and the periphery of the lifting platform walking vehicle seat can be supported through combination of the supporting arms, the hydraulic cylinders and the stabilizing discs; a stable effect is formed on the periphery of the lifting platform walking vehicle seat, and the lifting platform walking vehicle seat and the crank arm type lifting platform are prevented from deviating in the lifting process.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a crank-arm lifting platform. Background Art

[0002] The articulated arm lift platform is an efficient lifting platform that can stably lift workers or goods to a suitable position. The Chinese patent document with publication number CN218290367U discloses a articulated arm lift platform.

[0003] However, the above technical solution only uses wheels for support, and the center of gravity of the device will shift during the lifting process. Due to material and structural reasons, the tires make the device prone to tilting during the lifting process and have poor stability. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art of simply using wheel support and poor stability, and to propose a crank arm lifting platform.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A crank arm lifting platform, comprising

[0007] Lifting platform travel seat;

[0008] Articulated arm lift, which is rotatably connected to the top of the lifting platform travel seat;

[0009] Connecting seat: There are two connecting seats, which are bolted to both sides of the lifting platform traveling seat respectively;

[0010] Stabilizing assembly, there are two stabilizing assemblies, the stabilizing assembly includes a pinion, a support arm, a guide sleeve, a hydraulic cylinder and a stabilizing plate, the pinion, the support arm, the guide sleeve, the hydraulic cylinder and the stabilizing plate are each provided with two, the two support arms are hinged to the connecting seat, the pinion is keyed to the support arm, the support arm is welded to the guide sleeve, the bottom of the hydraulic cylinder is bolted to the top of the guide sleeve, the output end of the hydraulic cylinder extends to the bottom of the guide sleeve and is bolted to the top of the stabilizing plate;

[0011] The power mechanism is provided with two power mechanisms, which are connected to the pinion. The power mechanism is used to drive the hydraulic cylinder and the stabilizing plate to move. The four support arms can be driven to rotate through the transmission of the structure. The combination of the support arms, the hydraulic cylinder and the stabilizing plate can be used to support the four sides of the lifting platform's traveling seat, forming a stabilizing effect around the lifting platform's traveling seat, thereby preventing the lifting platform's traveling seat and the articulated arm lifting platform from offsetting during the lifting process.

[0012] As a preferred solution of the present utility model, the power mechanism includes a power motor, a main bevel gear, a sub-bevel gear and a transmission assembly. The output end of the power motor is connected to the top key of the main bevel gear, the teeth of the main bevel gear are engaged with the teeth of the sub-bevel gear, the sub-bevel gear is key-connected to the transmission assembly, the power supply of the power motor is turned on, and the power motor is controlled by a motor controller. The power motor can drive the main bevel gear to rotate, the main bevel gear can drive the sub-bevel gear to rotate, and the sub-bevel gear can drive.

[0013] As a preferred solution of the present utility model, the transmission assembly includes a double-threaded screw, a transmission bar, a transmission frame and a large gear. The transmission bar, the transmission frame and the large gear are each provided with two, the axis of the secondary bevel gear is keyed to the surface of the double-threaded screw, and the two ends of the surface of the double-threaded screw are respectively threadedly connected to the screw holes of the two transmission bars, the transmission bar is hinged to the transmission frame, and the transmission frame is hinged to the large gear. The teeth of the large gear are engaged with the teeth of the small gear, and the secondary bevel gear can drive the double-threaded screw to rotate. The teeth on both sides of the double-threaded screw move in opposite directions. The double-threaded screw can drive the two transmission bars away from each other, the transmission bar can drive the right end of the transmission frame, and the transmission frame and the large gear are in an eccentric structure. The transmission frame can drive the large gear to rotate, and the large gear can drive the small gear to rotate.

[0014] As an optimal solution of the present invention, the middle end bolt on the top of the connecting seat is connected to the bracket, the top of the bracket is connected to the bottom bolt of the power motor, the surface of the double-threaded screw is rotatably sleeved with the hole of the bracket, and the power motor is fixed by the bracket, so that the power motor can drive the main bevel gear to rotate. The double-threaded screw is arranged to rotate with the bracket through the bearing to ensure the smooth rotation of the double-threaded screw.

[0015] As a preferred solution of the present invention, the bottom of the transmission bar is slidingly connected to the top of the connecting seat, the axis of the large gear is rotatably connected to the top of the connecting seat, the transmission bar is slidingly set with the connecting seat through a slide rail to guide the transmission bar and facilitate the movement of the transmission bar, and the large gear is rotatably set with the connecting seat through a bearing.

[0016] As a preferred solution of the present invention, the hole of the support arm is key-connected with a rotating shaft, the top and bottom ends of the rotating shaft surface are both rotatably sleeved with the inner side of the connecting seat, the top of the rotating shaft is key-connected with the axis center of the pinion, the pinion can drive the rotating shaft to rotate, and the rotating shaft can drive the support arm to rotate, and the rotating shaft is rotatably arranged with the connecting seat through the bearing to ensure the stability of the rotation of the rotating shaft.

[0017] Beneficial effects:

[0018] 1. The power mechanism can drive the pinion to rotate, the pinion can drive the support arm to rotate, the support arm can drive the guide sleeve to move, and the guide sleeve can drive the stabilizing plate to move through the hydraulic cylinder;

[0019] 2. The hydraulic cylinder can be raised and lowered inside the guide sleeve. The hydraulic cylinder can lift the support arm upward through the stabilizing plate, and use the support arm and the connecting seat to support and stabilize the traveling seat of the lifting platform;

[0020] In the utility model: the four support arms can be driven to rotate through the transmission of the structure, and the combination of the support arms, hydraulic cylinders and stabilizing plates can be used to support the four sides of the lifting platform traveling seat, forming a stabilizing effect around the lifting platform traveling seat, and avoiding the lifting platform traveling seat and the articulated arm lifting platform from offsetting during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0022] Figure 2 This is a three-dimensional diagram of the power mechanism of the utility model;

[0023] Figure 3 This is a three-dimensional diagram of the support arm of the present utility model;

[0024] Figure 4 This is a three-dimensional diagram of the connecting seat of the present utility model.

[0025] In the figure: 1. Lifting platform travel seat; 2. Articulated arm lifting platform; 3. Connecting seat; 4. Support arm; 5. Guide sleeve; 6. Hydraulic cylinder; 7. Stabilizing plate; 8. Power motor; 9. Main bevel gear; 10. Secondary bevel gear; 11. Double-threaded screw; 12. Transmission bar; 13. Transmission frame; 14. Large gear; 15. Small gear. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] Reference Figures 1-4 , a crank arm lifting platform, comprising

[0029] Lifting platform travel seat 1;

[0030] A crank arm lift 2, which is rotatably connected to the top of the lifting platform travel seat 1;

[0031] Connecting seat 3, there are two connecting seats 3, and the two connecting seats 3 are bolted to both sides of the lifting platform traveling vehicle seat 1;

[0032] There are two stabilizing assemblies, which include a pinion 15, a support arm 4, a guide sleeve 5, a hydraulic cylinder 6, and a stabilizing plate 7. There are two pinion 15, two support arms 4, two guide sleeves 5, two hydraulic cylinders 6, and two stabilizing plates 7. Both support arms 4 are hinged to the connecting seat 3. The pinion 15 is key-connected to the support arm 4. The support arm 4 is welded to the guide sleeve 5. The bottom of the hydraulic cylinder 6 is bolted to the top of the guide sleeve 5. The output end of the hydraulic cylinder 6 extends to the bottom of the guide sleeve 5 and is bolted to the top of the stabilizing plate 7.

[0033] The power mechanism includes two power mechanisms, each of which is connected to the pinion 15 and is used to drive the hydraulic cylinder 6 and the stabilizing plate 7 to move.

[0034] By means of the above structure: the four support arms 4 can be driven to rotate through the transmission of the structure, and the combination of the support arms 4, the hydraulic cylinder 6 and the stabilizing plate 7 can be used to support the four sides of the lifting platform traveling seat 1, forming a stabilizing effect around the lifting platform traveling seat 1, and preventing the lifting platform traveling seat 1 and the articulated arm lifting platform 2 from offsetting during the lifting process.

[0035] See also Figure 2 The power mechanism includes a power motor 8, a main bevel gear 9, a secondary bevel gear 10 and a transmission assembly. The output end of the power motor 8 is connected to the top key of the main bevel gear 9, the teeth of the main bevel gear 9 are engaged with the teeth of the secondary bevel gear 10, and the secondary bevel gear 10 is key-connected to the transmission assembly. When the power supply of the power motor 8 is turned on, the power motor 8 is controlled by a motor controller. The power motor 8 can drive the main bevel gear 9 to rotate, the main bevel gear 9 can drive the secondary bevel gear 10 to rotate, and the secondary bevel gear 10 can drive the transmission assembly to rotate.

[0036] See also Figure 2 The transmission assembly includes a double-threaded screw 11, a transmission bar 12, a transmission frame 13 and a large gear 14. The transmission bar 12, the transmission frame 13 and the large gear 14 are each provided with two, the axis of the secondary bevel gear 10 is connected to the surface key of the double-threaded screw 11, and the two ends of the surface of the double-threaded screw 11 are respectively threadedly connected to the screw holes of the two transmission bars 12, the transmission bar 12 is hinged to the transmission frame 13, the transmission frame 13 is hinged to the large gear 14, the teeth of the large gear 14 are engaged with the teeth of the pinion 15, the secondary bevel gear 10 can drive the double-threaded screw 11 to rotate, the teeth on both sides of the double-threaded screw 11 are in opposite directions, the double-threaded screw 11 can drive the two transmission bars 12 away from each other, the transmission bar 12 can drive the right end of the transmission frame 13, and the transmission frame 13 and the large gear 14 are eccentric. The transmission frame 13 can drive the large gear 14 to rotate, and the large gear 14 can drive the small gear 15 to rotate.

[0037] See also Figure 4The middle end of the top of the connecting seat 3 is bolted to the bracket, the top of the bracket is bolted to the bottom of the power motor 8, the surface of the double-threaded screw 11 is rotatably sleeved with the hole of the bracket, and the power motor 8 is fixed by the bracket, which makes it convenient for the power motor 8 to drive the main bevel gear 9 to rotate. The double-threaded screw 11 is rotated through the bearing and the bracket to ensure the stability of the rotation of the double-threaded screw 11.

[0038] See also Figure 4 The bottom of the transmission bar 12 is slidingly connected to the top of the connecting seat 3, and the axis of the large gear 14 is rotatably connected to the top of the connecting seat 3. The transmission bar 12 is slidably set with the connecting seat 3 through the slide rail to guide the transmission bar 12 and facilitate the movement of the transmission bar 12. The large gear 14 is rotatably set with the connecting seat 3 through the bearing.

[0039] See also Figure 3 The hole key of the support arm 4 is connected with a rotating shaft. The top and bottom ends of the rotating shaft surface are rotatably sleeved with the inner side of the connecting seat 3. The top of the rotating shaft is keyed to the axis of the pinion 15. The pinion 15 can drive the rotating shaft to rotate, and the rotating shaft can drive the support arm 4 to rotate. The rotating shaft is rotated with the connecting seat 3 through the bearing to ensure the stability of the rotating shaft.

[0040] Example 2

[0041] The difference between this embodiment and the first embodiment is that the transmission frame 13 and the large gear 14 are replaced by a rack. The rack can drive the small gear 15 to rotate, but there is no acceleration structure, and the transmission bar 12 needs to move a longer distance. Therefore, the transmission frame 13 and the large gear 14 are preferred in this application.

[0042] It should be noted that the specific types of power motor 8 and hydraulic cylinder 6 to be used are selected by relevant technical personnel familiar with this field, and the above-mentioned power motor 8 and hydraulic cylinder 6 belong to the existing technology and will not be elaborated in this solution.

[0043] The lifting platform traveling seat 1 and the articulated arm lifting platform 2 both adopt existing technologies and can adopt the main structure of the patent application number 202222475637.9.

[0044] The operating steps of the utility model are as follows: the lifting platform traveling seat 1 supports the crank arm lifting platform 2, and the crank arm lifting platform 2 is used to lift and lower, and the power supply of the power motor 8 is turned on, and the power motor 8 is controlled by the motor controller. The power motor 8 can drive the main bevel gear 9 to rotate, and the main bevel gear 9 can drive the secondary bevel gear 10 to rotate, and the secondary bevel gear 10 can drive the double-threaded screw rod 11 to rotate, and the teeth on both sides of the double-threaded screw rod 11 are in opposite directions. The double-threaded screw rod 11 can drive the two transmission bars 12 to move away from each other, and the transmission bar 12 can drive the right end of the transmission frame 13, and the transmission frame 13 and the large gear 14 have an eccentric structure, and the transmission frame 13 can drive the large gear 14 to rotate, and the large gear 14 can drive the small gear 15 to rotate, and the small gear 15 can drive the support arm 4 to rotate, and the support arm 4 can rotate inside the connecting seat 3, and the support arm 4 can drive the guide sleeve 5 to move, and the guide sleeve 5 can drive the hydraulic cylinder 6 and the stabilizing plate 7 to move, and the hydraulic power of the hydraulic cylinder 6 is turned on, and the hydraulic cylinder 6 can drive the stabilizing plate 7 to move downward, and the stabilizing plate 7 can stabilize the support arm 4 downward.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crank-type lifting platform, characterized in that: include Lifting platform travel seat (1); A crank arm lift (2), the crank arm lift (2) is rotatably connected to the top of the lift platform travel seat (1); A connecting seat (3), wherein two connecting seats (3) are provided, and the two connecting seats (3) are respectively bolted to two sides of the lifting platform traveling vehicle seat (1); The stabilizing assembly is provided with two stabilizing assemblies, and the stabilizing assembly comprises a pinion (15), a support arm (4), a guide sleeve (5), a hydraulic cylinder (6) and a stabilizing plate (7). The pinion (15), the support arm (4), the guide sleeve (5), the hydraulic cylinder (6) and the stabilizing plate (7) are each provided with two, the two support arms (4) are hinged to the connecting seat (3), the pinion (15) and the support arm (4) are key-connected, the support arm (4) and the guide sleeve (5) are welded, the bottom of the hydraulic cylinder (6) is bolted to the top of the guide sleeve (5), and the output end of the hydraulic cylinder (6) extends to the bottom of the guide sleeve (5) and is bolted to the top of the stabilizing plate (7); A power mechanism is provided, wherein two power mechanisms are connected to the pinion (15), and the power mechanism is used to drive the hydraulic cylinder (6) and the stabilizing plate (7) to move.

2. The articulated arm lifting platform according to claim 1, characterized in that: The power mechanism comprises a power motor (8), a main bevel gear (9), a secondary bevel gear (10) and a transmission assembly, wherein the output end of the power motor (8) is connected to the top key of the main bevel gear (9), the teeth of the main bevel gear (9) are meshed with the teeth of the secondary bevel gear (10), and the secondary bevel gear (10) is key-connected to the transmission assembly.

3. The articulated arm lifting platform according to claim 2, characterized in that: The transmission assembly comprises a double-threaded screw (11), a transmission bar (12), a transmission frame (13) and a large gear (14). The transmission bar (12), the transmission frame (13) and the large gear (14) are each provided with two. The axis of the secondary bevel gear (10) is key-connected to the surface of the double-threaded screw (11). The two ends of the surface of the double-threaded screw (11) are respectively threadedly connected to the screw holes of the two transmission bars (12). The transmission bar (12) is hinged to the transmission frame (13), the transmission frame (13) is hinged to the large gear (14), and the teeth of the large gear (14) are meshed with the teeth of the small gear (15).

4. The articulated arm lifting platform according to claim 2, characterized in that: The middle end of the top of the connecting seat (3) is bolted to a bracket, the top of the bracket is bolted to the bottom of the power motor (8), and the surface of the double-threaded rod (11) is rotatably sleeved with the hole of the bracket.

5. The articulated arm lifting platform according to claim 3, characterized in that: The bottom of the transmission bar (12) is slidably connected to the top of the connecting seat (3), and the axis of the large gear (14) is rotationally connected to the top of the connecting seat (3).

6. The articulated arm lifting platform according to claim 1, characterized in that: The hole of the support arm (4) is keyed to a rotating shaft, the top and bottom ends of the rotating shaft surface are both rotatably sleeved with the inner side of the connecting seat (3), and the top end of the rotating shaft is keyed to the axis of the pinion (15).

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