Two-section type unfolding lifting platform
By employing a two-stage unfolding lifting platform design, utilizing scissor arm components, limit slide rails, and locking block structures, the problem of reduced platform load capacity in existing technologies is solved, thereby improving stability and safety under high-load conditions.
Patent Information
- Application Number
- CN202423261576.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-27
AI Technical Summary
When existing lifting platforms achieve horizontal extension, their load capacity decreases significantly, leading to reduced overall stability and limiting their application in high-load work scenarios.
The platform adopts a two-stage unfolding design, including a scissor arm assembly, a limit slide rail, and a locking block structure. Combined with a fixed base and a boundary base, the platform's stability and safety during horizontal extension are ensured by lifting hydraulic cylinders, lifting air cylinders, and drive components.
It improves the stability and load-bearing capacity of the platform in its extended state, prevents the platform from shifting or falling off, enhances safety and reliability, and improves the overall rigidity and load capacity of the platform.
Smart Images
Figure CN223534817U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lifting technology, and in particular to a two-section deployable lifting platform. Background Technology
[0002] As a multi-functional lifting and loading / unloading machine, the lifting platform is widely used in industrial, commercial, and household fields, with its main function being vertical transportation. Powered by electricity, hydraulics, or pneumatics, the lifting platform can efficiently raise or lower goods and personnel, greatly improving work efficiency and operational convenience. In recent years, with technological advancements, the application scope of lifting platforms has continuously expanded, no longer limited to simple vertical movement, but also extending its functionality in the horizontal direction to adapt to more complex and varied working environments.
[0003] To achieve the horizontal extension function of a lifting platform, various methods are commonly used in existing technologies. One of the most common methods is to install slide rails on the platform and drive the platform along these rails using a motor to achieve horizontal extension. Another common method is to use telescopic rods or linkage mechanisms to mechanically extend and retract the platform. Additionally, some designs employ cylinders or hydraulic cylinders to propel the platform horizontally. These methods address the need for horizontal extension to some extent, but each has its own characteristics and technical details.
[0004] Existing lifting platforms generally suffer from a critical problem when implementing horizontal extension functionality: the platform's load-bearing capacity decreases significantly in the extended state. This is because the traditional combination of slide rails and motors, while extending the platform, causes the support point to move away from the center, thus weakening overall stability and limiting the platform's load-bearing capacity. This defect severely restricts the application effectiveness of lifting platforms in high-load working scenarios. Utility Model Content
[0005] To overcome the aforementioned technical problems, this application provides a two-section unfolding lifting platform.
[0006] This application provides a two-section deployable lifting platform, which adopts the following technical solution:
[0007] A two-section unfolding lifting platform includes a fixed base, a scissor arm assembly hinged to the fixed base, a lifting hydraulic cylinder mounted on the scissor arm assembly, a base plate hinged to the top of the scissor arm assembly, a movable platform mounted on the base plate, a load-bearing rail fixedly mounted on the top of the base plate, and multiple movable rollers mounted on the bottom of the movable platform. The movable platform is slidably mounted above the base plate via the movable rollers and the load-bearing rails. A base column is mounted at each of the four corners of the base plate. Two limit rails are arranged opposite each other along the length of the base plate, and both limit rails are fixedly mounted on the base columns. A wheel shell is fixedly mounted on the outside of each movable roller. A locking block is fixedly mounted on the end of the wheel shell facing the limit rail. The locking block is L-shaped, and a groove is formed between the locking block and the outer surface of the wheel shell to form a locking groove, which is slidably engaged with the limit rail.
[0008] By adopting the above technical solution, this two-section unfolding lifting platform not only achieves stable sliding and positioning of the mobile platform, ensuring structural stability during horizontal extension, but also effectively prevents the risk of displacement or detachment during operation through the design of limit rails and locking blocks, thus improving the safety and reliability of the entire system. Furthermore, this design allows the mobile platform to maintain high rigidity and strength when carrying heavy loads, further enhancing its load-bearing capacity.
[0009] Preferably, a fixed base and a boundary base are also fixedly disposed on the substrate. The fixed base and the boundary base are disposed opposite to each other at both ends of the substrate along the width direction of the substrate, and the boundary base is disposed in the extension direction of the moving platform.
[0010] By adopting the above technical solution, the lifting platform effectively enhances its stability when the mobile platform extends, thanks to the structural design of the fixed base and boundary base. This prevents tilting or overturning caused by excessive extension of the mobile platform, ensuring operational safety and reliability. Furthermore, the rational layout of the fixed base and boundary base not only improves the overall rigidity of the platform but also facilitates subsequent maintenance and repair.
[0011] Preferably, the fixed base has multiple vertical slots forming insertion slots, and the insertion slots are open to one side facing the boundary base. The bottom of the mobile platform is provided with an abutment seat near the fixed base, and the abutment seat has multiple vertical plates forming inserts, and the inserts are correspondingly arranged with the insertion slots.
[0012] By adopting the above technical solution, the insertion slot on the fixed base cooperates with the insert on the abutment at the bottom of the mobile platform, ensuring the stable positioning of the mobile platform on the base plate and preventing displacement or detachment during the lifting process, thus improving the safety and reliability of the lifting platform. Simultaneously, the open design of the insertion slot facing the boundary base allows the mobile platform to be smoothly inserted and fixed when resetting after extension, enhancing the stability of the platform in the extended state and effectively improving its load-bearing capacity.
[0013] Preferably, a lifting cylinder is fixedly installed inside the boundary base, a locking pin is fixedly installed on the output shaft of the lifting cylinder, and a locking hole is also provided on the abutment seat. The locking hole and the locking pin are matched in shape, and the locking hole is opened on the side of the insert near the boundary base.
[0014] By adopting the above technical solution, the mobile platform, when extended, can be securely locked by the interaction of the lifting cylinder and locking pin with the locking hole on the abutment seat. This prevents the mobile platform from shifting or falling off under heavy loads, thereby improving the safety and stability of the entire lifting platform. At the same time, this design allows for quick unlocking when the mobile platform is retracted, facilitating operation.
[0015] Preferably, the bottom of the mobile platform is further provided with a drive assembly, the drive assembly including a drive shaft, the drive shaft being connected to two moving rail wheels near the fixed base, a drive gear being fixedly provided on the drive shaft, the drive assembly also including a power motor, the power motor being fixedly provided at the bottom of the mobile platform, and the output shaft of the power motor meshing with the drive gear through a gear.
[0016] By adopting the above technical solution, the drive assembly at the bottom of the mobile platform, including a drive shaft, drive gears, and a power motor, enables the mobile platform to slide smoothly along the support track on the base plate. Specifically, the power motor rotates the drive shaft through gear transmission, which in turn drives the two connected moving rail wheels to rotate, achieving precise control and smooth movement of the mobile platform. This design not only improves the stability and reliability of the mobile platform but also enhances the ease of operation and load capacity of the entire lifting platform.
[0017] Preferably, a protective slide rail is also fixedly installed on the base column. Two protective slide rails are arranged opposite each other, and both protective slide rails are arranged above the limiting slide rail. Two limiting seats are fixedly installed on the protective slide rail.
[0018] By adopting the above technical solutions, the protective slide rail can effectively prevent the mobile platform from deviating or derailing during sliding, improving the stability and safety of the system. The limit seat further ensures the position control of the mobile platform during movement, avoiding safety hazards caused by exceeding the track range. The combined design of the protective slide rail and the limit slide rail makes the horizontal movement of the mobile platform more stable and reliable, improving the overall performance and lifespan of the lifting platform.
[0019] Preferably, both the protective slide rail and the limiting slide rail are U-shaped.
[0020] By adopting the above technical solutions, the design of the U-shaped protective slide rail and the limiting slide rail can effectively improve the stability and reliability of the mobile platform during horizontal extension. The U-shaped design increases the structural strength of the protective slide rail, preventing deformation or damage to the slide rail due to external impacts during movement, thus ensuring the safe operation of the mobile platform.
[0021] Preferably, hinge shafts are fixedly installed on both sides of the mobile platform near the bottom, and a pull chain is hinged to the hinge shaft. A slider is fixedly installed on the top of the pull chain, and the slider is slidably connected to the protective slide rail.
[0022] By adopting the above technical solution, the traction chain can effectively prevent the mobile platform from shifting or overturning during movement as it moves along the base plate. It also applies an upward pulling force to the mobile platform, improving its load-bearing capacity. Simultaneously, the sliding connection design between the slider and the protective rail further enhances the adaptability of the mobile platform under different working conditions, ensuring stable operation of the platform during extension and retraction.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The design of the moving platform and load-bearing track on the substrate enables the moving platform to slide smoothly on the substrate, effectively improving the stability and load-bearing capacity of the platform in its extended state. This design solves the problem of reduced load-bearing capacity after platform extension in existing technologies, ensuring efficient operation of the platform under various working conditions. Especially under high-load conditions, it can still maintain stable support and load-bearing performance, significantly improving the practicality and reliability of the equipment.
[0025] 2. The sliding latch connection structure between the moving track wheel and the limiting slide rail ensures that the moving platform will not deviate during sliding, further enhancing the platform's reliability and safety. Specifically, the cooperative design of the L-shaped locking block and the limiting slide rail not only effectively prevents the moving platform from deviating from the track during sliding, but also provides a reliable locking function at extreme positions, avoiding derailment caused by accidental impacts or vibrations, thereby greatly improving the safety and stability of the entire system. Attached Figure Description
[0026] Figure 1 This is a front view of an embodiment of this application;
[0027] Figure 2 This is a right view of an embodiment of this application;
[0028] Figure 3 This is a 3D view of the lifting platform;
[0029] Figure 4 This is a schematic diagram of the specific structure of the lock block;
[0030] Figure 5 This is a schematic diagram of the specific structure of the fixed base and the boundary base.
[0031] Explanation of reference numerals in the attached drawings: 1. Lifting cylinder; 11. Lifting hydraulic cylinder; 2. Scissor arm assembly; 3. Fixed base; 4. Base plate; 41. Fixed base; 411. Insertion slot; 42. Boundary base; 431. Locking post; 43. Bearing rail; 44. Limiting slide rail; 45. Protective slide rail; 451. Limiting seat; 46. Base column; 51. Abutment seat; 511. Locking hole; 512. Insert plate; 52. Hinge shaft; 53. Pull chain; 531. Slider; 54. Moving track wheel; 541. Locking block; 542. Locking groove; 543. Wheel housing; 61. Drive shaft; 62. Drive gear; 63. Power motor. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0033] This application discloses a two-section unfolding lifting platform, referring to... Figure 1 , Figure 2 and Figure 3The system includes a fixed base 3, on which a scissor arm assembly 2 is hinged. A lifting hydraulic cylinder 11 is mounted on the scissor arm assembly 2, and a base plate 4 is hinged to the top of the scissor arm assembly 2. The lifting hydraulic cylinder 11 drives the scissor arm assembly 2 to extend and retract vertically, thereby lifting and lowering the base plate 4. A lifting platform is mounted on the base plate 4, and a support rail 43 is fixedly mounted on the top of the base plate 4. The support rail 43 is a standard transport rail. Multiple movable rollers 54 are mounted at the bottom of the lifting platform, and these rollers 54 are installed on the support rail 43, allowing the lifting platform to slide on the support rail 43. The lifting platform is slidably positioned above the base plate 4 via the movable rollers 54 and the support rail 43. A drive assembly is also provided at the bottom of the lifting platform. The drive assembly includes a drive shaft 61, which is connected to two movable rail wheels 54 near the fixed base 41. A drive gear 62 is fixedly mounted on the drive shaft 61. The drive assembly also includes a power motor 63, which is fixedly mounted at the bottom of the lifting platform. The output shaft of the power motor 63 meshes with the drive gear 62 through a gear. The power motor 63 enables the lifting platform to extend along the base plate 4.
[0034] Reference Figure 3 and Figure 4 A base post 46 is provided at each of the four corners of the substrate 4. A limiting slide rail 44 is provided along the length of the substrate 4. Two limiting slide rails 44 are provided opposite to each other. Both limiting slide rails 44 are fixedly mounted on the base post 46. A wheel housing 543 is fixedly mounted on the outside of the moving track wheel 54. A locking block 541 is fixedly mounted on the end of the wheel housing 543 facing the limiting slide rail 44. The locking block 541 is L-shaped. The locking block 541 and the outer surface of the wheel housing 543 form a groove to form a locking groove 542. The locking groove 542 and the limiting slide rail 44 The sliding buckle connection ensures that the wheel housing 543 does not rotate with the rotation of the moving track wheel 54. The locking block 541 on the wheel housing 543 is an L-shaped block with a right angle. When the locking groove 542 is connected to the limiting slide rail 44 via the sliding buckle, the locking groove 542 can move with the lifting platform. However, during the movement, the locking groove 542 is always engaged with the limiting slide rail 44, so that the moving track wheel 54 can move precisely along the bearing track 43, ensuring that the lifting platform does not deviate from the track during the movement and guaranteeing the safety of the users.
[0035] Reference Figure 5A fixed base 41 and a boundary base 42 are also fixedly disposed on the substrate 4. The fixed base 41 and the boundary base 42 are respectively disposed opposite to each other at both ends of the substrate 4 along the width direction of the substrate 4, and the boundary base 42 is disposed in the extension direction of the lifting platform. The fixed base 41 has multiple vertical slots forming insertion slots 411. The insertion slots 411 are open on the side facing the boundary base 42. The bottom of the lifting platform is provided with an abutment 51 near the fixed base 41. The abutment 51 has multiple vertical plates forming inserts 512. The inserts 512 are correspondingly disposed with the insertion slots 411. When the extended lifting platform retracts, the inserts 512 disposed on the lifting platform can be inserted into the insertion slots 411, so that the lifting platform can be fixed by the inserts 512 and the insertion slots 411 when it is not extended, thus ensuring the stability of the lifting platform.
[0036] A lifting cylinder 1 is fixedly installed inside the boundary base 42. A locking pin 431 is fixedly installed on the output shaft of the lifting cylinder 1. A locking hole 511 is also provided on the abutment seat 51. The locking hole 511 and the locking pin 431 are matched in shape and are located on the side of the insert 512 near the boundary base 42. When the lifting platform extends to its end, the abutment seat 51 can move to the top of the boundary base 42, and the lifting cylinder 1 drives the locking pin 431 to extend into the locking hole 511, thereby realizing the locking function of the lifting platform. Through the locking effect of the locking pin 431, the load of the lifting platform can also be increased, and more load can be borne by the locking pin 431.
[0037] Reference Figure 3 A protective slide rail 45 is fixedly installed on the base column 46. Two protective slide rails 45 are arranged opposite each other, and both protective slide rails 45 are located above the limiting slide rail 44. Two limiting seats 451 are fixedly installed on the protective slide rail 45. The protective slide rail 45 and the limiting slide rail 44 are both U-shaped. Hinged shafts 52 are fixedly installed on both sides of the lifting platform near the bottom. A pull chain 53 is hinged to the hinged shaft 52. A slider 531 is fixedly installed on the top of the pull chain 53, and the slider 531 is slidably connected to the protective slide rail 45. When the lifting platform is extended, the end of the pull chain 53 with the slider 531 can slide along the protective slide rail 45. The pull chain 53 keeps the lifting platform always connected to the protective slide rail 45. When the lifting platform is extended, the pull chain 53 can pull the lifting platform, which can increase the load of the lifting platform and ensure the stability of the lifting platform after extension. The pull chain 53 is a steel chain.
[0038] The implementation principle of this embodiment is as follows: the lifting platform is lifted to a predetermined height by the lifting hydraulic cylinder 11. When it is necessary to extend the lifting platform, the moving track wheel 54 is rotated by controlling the power motor 63, thereby extending the lifting platform. During the extension process, the pull chain 53 is always connected to the protective slide rail 45 through the slider 531. The slider 531 slides with the direction of movement of the lifting platform. When the lifting platform moves to the maximum extension distance, the lifting cylinder 1 drives the locking pin 431 to extend into the locking hole 511, thereby locking the lifting platform. When the lifting platform retracts, the insert 512 can be inserted into the insertion slot 411 to fix the lifting platform. The above settings can improve the stability of the lifting platform and increase its load capacity.
[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A two-section unfolding lifting platform, comprising a fixed base (3), a scissor arm assembly (2) hinged on the fixed base (3), a lifting hydraulic cylinder (11) mounted on the scissor arm assembly (2), and a base plate (4) hinged to the top of the scissor arm assembly (2), characterized in that: A lifting platform is provided on the base plate (4). A bearing rail (43) is fixedly provided on the top of the base plate (4). Multiple moving wheels (54) are provided at the bottom of the lifting platform. The lifting platform is slidably disposed above the base plate (4) via the moving wheels (54) and the bearing rail (43). A base column (46) is provided at each of the four corners of the base plate (4). A limiting slide rail (44) is provided along the length of the base plate (4). Two limiting slide rails (44) are arranged opposite each other. Both of the limiting slide rails (44) are fixedly mounted on the base column (46). The outer side of the moving track wheel (54) is fixedly mounted with a wheel shell (543). A locking block (541) is fixedly mounted on one end of the wheel shell (543) facing the limiting slide rail (44). The locking block (541) is L-shaped. The locking block (541) and the outer surface of the wheel shell (543) form a groove to form a locking groove (542). The locking groove (542) is slidably engaged with the limiting slide rail (44).
2. The two-section unfolding lifting platform according to claim 1, characterized in that: A fixed base (41) and a boundary base (42) are also fixedly provided on the substrate (4). The fixed base (41) and the boundary base (42) are respectively arranged opposite to each other at both ends of the substrate (4) along the width direction of the substrate (4). The boundary base (42) is arranged in the extension direction of the lifting platform.
3. The two-section unfolding lifting platform according to claim 2, characterized in that: The fixed base (41) has multiple vertical slots forming insertion slots (411). The insertion slots (411) are open to one side facing the boundary base (42). The bottom of the lifting platform is provided with an abutment (51) at one end near the fixed base (41). The abutment (51) has multiple vertical plates forming inserts (512). The inserts (512) are correspondingly arranged with the insertion slots (411).
4. The two-section unfolding lifting platform according to claim 3, characterized in that: A lifting cylinder (1) is fixedly installed inside the boundary base (42). A locking pin (431) is fixedly installed on the output shaft of the lifting cylinder (1). A locking hole (511) is also provided on the abutment seat (51). The locking hole (511) and the locking pin (431) are matched in shape. The locking hole (511) is opened on the side of the insert (512) near the boundary base (42).
5. A two-section unfolding lifting platform according to claim 2, characterized in that: The bottom of the lifting platform is also provided with a drive assembly, which includes a drive shaft (61). The drive shaft (61) is connected to two moving rail wheels (54) on the side near the fixed base (41). A drive gear (62) is fixedly provided on the drive shaft (61). The drive assembly also includes a power motor (63), which is fixedly provided at the bottom of the lifting platform. The output shaft of the power motor (63) meshes with the drive gear (62) through a gear.
6. The two-section unfolding lifting platform according to claim 1, characterized in that: The base column (46) is also fixedly provided with a protective slide rail (45). There are two protective slide rails (45) arranged opposite each other. Both of the protective slide rails (45) are arranged above the limiting slide rail (44). Two limiting seats (451) are fixedly provided on the protective slide rail (45).
7. A two-section unfolding lifting platform according to claim 6, characterized in that: Both the protective slide rail (45) and the limiting slide rail (44) are U-shaped.
8. A two-section unfolding lifting platform according to claim 6, characterized in that: The lifting platform has hinge shafts (52) fixedly installed on both sides near the bottom. A pull chain (53) is hinged on the hinge shaft (52). A slider (531) is fixedly installed on the top of the pull chain (53). The slider (531) is slidably connected to the protective slide rail (45).