Cross bridging type lifting platform

Abstract

The utility model discloses a diagonal bridging type lifting platform which comprises a lower platform, an upper platform, a lifting mechanism, a driving mechanism and a limiting mechanism, and the upper platform is arranged above the lower platform; the lifting mechanism comprises a first support and a second support which are arranged in a crossed mode and hinged to each other, the upper end of the first support is hinged to the upper platform, the lower end of the first support is connected with the lower platform in a sliding mode, the lower end of the second support is hinged to the lower platform, and the upper end of the second support is connected with the upper platform in a sliding mode. And the driving mechanism is connected with the second bracket. The cross bridging type lifting platform has the advantages that the limiting mechanism in the cross bridging type lifting platform can prevent the upper platform from exceeding a production line in the ascending process, the ascending height of the upper platform does not need to be debugged many times when the upper platform ascends every time, it can be guaranteed that the upper platform and the production line are in accurate butt joint, and the feeding and discharging efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a scissor-type lifting platform. Background Technology

[0002] In a material production workshop, a scissor-type lifting platform is needed to connect with the production line for loading and unloading materials. Driven by a drive system, the scissor-type lifting platform rises to a preset height to receive materials. Existing scissor-type lifting platforms (such as the pneumatic lifting platform for elevated personnel disclosed in application number 202123178783.7) can rise to a preset height under the drive system, but the platform easily exceeds the production line during ascent. Each time the platform is raised, multiple adjustments to the ascent height are required to ensure accurate connection between the platform and the production line, resulting in low efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a scissor-type lifting platform to solve the technical problem that in the prior art, the lifting height of the platform needs to be adjusted multiple times to ensure accurate docking between the platform and the production line, resulting in low efficiency.

[0004] To achieve the above technical objectives, the present invention provides a scissor-type lifting platform, comprising:

[0005] Off-platform;

[0006] The upper platform is positioned above the lower platform;

[0007] A lifting mechanism includes a first bracket and a second bracket that are arranged crosswise and hinged to each other. The upper end of the first bracket is hinged to the upper platform, and the lower end of the first bracket is slidably connected to the lower platform. The lower end of the second bracket is hinged to the lower platform, and the upper end of the second bracket is slidably connected to the upper platform.

[0008] A driving mechanism, which is connected to the second bracket, is used to drive the upper end of the second bracket to move closer to or further away from the upper end of the first bracket;

[0009] A limiting mechanism is disposed on the lower platform and located between the first bracket and the second bracket, so as to abut against the lower end of the first bracket.

[0010] Furthermore, the first support includes two first support rods, a first connecting shaft, and two first rollers. The two first support rods are arranged opposite each other and at an angle. The upper ends of the two first support rods are hinged to the upper platform. The two ends of the first connecting shaft are fixedly connected to the two first support rods respectively. The wheel frames of the two first rollers are fixedly connected to the lower ends of the two first support rods one by one. The two first rollers are slidably connected to the lower platform.

[0011] Furthermore, the second support includes two second support rods, a second connecting shaft, and two second rollers. The two second support rods are arranged opposite each other and at an angle, and the two second support rods are arranged crosswise with the two first support rods and are hinged to each other. The lower ends of the two second support rods are hinged to the lower platform. The two ends of the second connecting shaft are fixedly connected to the two second support rods respectively. The wheel frames of the two second rollers are fixedly connected to the upper ends of the two second support rods respectively. The two second rollers are slidably connected to the upper platform.

[0012] Furthermore, the two second struts are located between the two first struts.

[0013] Furthermore, the lower platform has two first sliding grooves, and the two first rollers are rolled in the two first sliding grooves in a one-to-one correspondence.

[0014] Furthermore, the upper platform has two second sliding grooves, and the two second rollers are rolled in the two second sliding grooves in a one-to-one correspondence.

[0015] Furthermore, the first bracket also includes a first mounting shaft, which is horizontally arranged and its two ends are respectively fixedly connected to two first support rods. The second bracket also includes a second mounting shaft, which is horizontally arranged and its two ends are respectively fixedly connected to two second support rods. The driving mechanism includes multiple connecting rods and multiple telescopic driving components. Each connecting rod is arranged opposite to and inclined, and one end of each connecting rod is fixedly connected to the second mounting shaft. Each telescopic driving component is arranged opposite to and inclined, and the fixed end of each telescopic driving component is hinged to the first mounting shaft. The telescopic end of each telescopic driving component is hinged to the other end of each connecting rod, for driving the connecting rod to rotate, thereby adjusting the tilt angle of the connecting rod.

[0016] Furthermore, the first mounting shaft is close to the lower end of the first support rod. The limiting mechanism includes two limiting blocks, which are arranged opposite to each other and are located between the corresponding first support rod and second support rod to abut against the first mounting shaft. When the two limiting blocks abut against the first mounting shaft, the upper platform reaches a preset height and connects with the production line.

[0017] Furthermore, the lifting mechanism also includes a connecting component that is detachably rotatable through the intersection of the first bracket and the second bracket, so that the first bracket and the second bracket can rotate relative to the connecting component.

[0018] Furthermore, a first mounting hole is provided at the middle of the first support rod, and a second mounting hole is provided at the middle of the second support rod. The connecting assembly includes a screw rod and two nuts. The screw rod rotates through the two first mounting holes and the two second mounting holes. The two nuts are both sleeved on the screw rod and are threadedly connected to the screw rod. The two nuts abut against the outer side walls of the two first support rods one by one.

[0019] Compared with the prior art, the beneficial effects of this utility model include: In use, the drive mechanism is activated, which can drive the upper end of the second support to gradually approach the upper end of the first support. Since the first and second supports are cross-arranged and hinged to each other, as the upper end of the second support gradually approaches the upper end of the first support, the lower end of the first support gradually approaches the lower end of the second support. Throughout the process, the upper platform gradually rises until the lower end of the first support abuts against the limiting mechanism, at which point the drive mechanism stops, the upper end of the second support stops moving, and the lower end of the first support also stops moving accordingly. At this time, the upper platform reaches the preset height, and the upper platform is accurately docked with the production line. The limiting mechanism in this scissor-type lifting platform can prevent the upper platform from exceeding the production line during the rising process. Each time the upper platform is raised, it is no longer necessary to adjust the rising height of the upper platform multiple times, which can ensure that the upper platform is accurately docked with the production line and improve the loading and unloading efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a scissor-type lifting platform provided by this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of a scissor-type lifting platform provided by this utility model from another perspective;

[0022] In the diagram: 100 - Lower platform, 110 - First slide rail, 200 - Upper platform, 210 - Second slide rail, 300 - Lifting mechanism, 310 - First bracket, 311 - First support rod, 312 - First connecting shaft, 313 - First roller, 314 - First mounting shaft, 320 - Second bracket, 321 - Second support rod, 322 - Second connecting shaft, 323 - Second roller, 324 - Second mounting shaft, 330 - Connecting assembly, 331 - Screw, 332 - Nut, 400 - Drive mechanism, 410 - Connecting rod, 420 - Telescopic drive component, 500 - Limiting mechanism, 510 - Limiting block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] This utility model provides a scissor-type lifting platform, the structure of which is as follows: Figure 1 - Figure 2 As shown, the system includes a lower platform 100, an upper platform 200, a lifting mechanism 300, a driving mechanism 400, and a limiting mechanism 500. The upper platform 200 is disposed above the lower platform 100. The lifting mechanism 300 includes a first bracket 310 and a second bracket 320 that are cross-connected and hinged to each other. The upper end of the first bracket 310 is hinged to the upper platform 200, and the lower end of the first bracket 310 is slidably connected to the lower platform 100. The lower end of the second bracket 320 is hinged to the lower platform 100, and the upper end of the second bracket 320 is slidably connected to the upper platform 200. The driving mechanism 400 is connected to the second bracket 320 and is used to drive the upper end of the second bracket 320 to move closer to or away from the upper end of the first bracket 310. The limiting mechanism 500 is disposed on the lower platform 100 and located between the first bracket 310 and the second bracket 320, so as to abut against the lower end of the first bracket 310.

[0025] In use, the drive mechanism 400 is activated, driving the upper end of the second bracket 320 to gradually approach the upper end of the first bracket 310. Since the first bracket 310 and the second bracket 320 are cross-connected and hinged to each other, as the upper end of the second bracket 320 approaches the upper end of the first bracket 310, the lower end of the first bracket 310 gradually approaches the lower end of the second bracket 320. Throughout this process, the upper platform 200 gradually rises until the lower end of the first bracket 310 abuts against the limiting mechanism 500. When the drive mechanism 400 stops, the upper end of the second support 320 stops moving, and the lower end of the first support 310 also stops moving. At this time, the upper platform 200 reaches the preset height and accurately docks with the production line. The limiting mechanism 500 in this scissor-type lifting platform can prevent the upper platform 200 from exceeding the production line during the rising process. Each time the upper platform 200 is raised, it is no longer necessary to adjust the rising height of the upper platform 200 multiple times, which can ensure that the upper platform 200 accurately docks with the production line and improves the efficiency of loading and unloading.

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 2 The first support 310 includes two first support rods 311, a first connecting shaft 312, and two first rollers 313. The two first support rods 311 are arranged opposite each other and at an incline. The upper ends of the two first support rods 311 are hinged to the upper platform 200. The two ends of the first connecting shaft 312 are fixedly connected to the two first support rods 311 respectively. The wheel frames of the two first rollers 313 are fixedly connected to the lower ends of the two first support rods 311 one by one. The two first rollers 313 are slidably connected to the lower platform 100. The two first support rods 311 can improve the support effect on the upper platform 200, and the first rollers 313 can improve the smoothness of sliding.

[0027] As a preferred embodiment, please refer to Figure 1 and Figure 2 The second support 320 includes two second support rods 321, a second connecting shaft 322, and two second rollers 323. The two second support rods 321 are arranged opposite each other and at an angle, and the two second support rods 321 are arranged crosswise with the two first support rods 311 and are hinged to each other. The lower ends of the two second support rods 321 are hinged to the lower platform 100. The two ends of the second connecting shaft 322 are fixedly connected to the two second support rods 321 respectively. The wheel frames of the two second rollers 323 are fixedly connected to the upper ends of the two second support rods 321 respectively. The two second rollers 323 are slidably connected to the upper platform 200. The two second support rods 321 can improve the support effect on the upper platform 200, and the second rollers 323 can improve the smoothness of sliding.

[0028] As a preferred embodiment, please refer to Figure 1 and Figure 2 The two second support rods 321 are located between the two first support rods 311, which facilitates the connection between the drive mechanism 400 and the second bracket 320.

[0029] As a preferred embodiment, please refer to Figure 1 and Figure 2 The lower platform 100 has two first slide grooves 110, and the two first rollers 313 are rolled in the two first slide grooves 110 in a one-to-one correspondence. The first slide grooves 110 can guide the first rollers 313.

[0030] As a preferred embodiment, please refer to Figure 1 and Figure 2The upper platform 200 has two second slide grooves 210, and the two second rollers 323 are rolled in the two second slide grooves 210 in a one-to-one correspondence. The second slide grooves 210 can guide the second rollers 323.

[0031] As a preferred embodiment, please refer to Figure 1 and Figure 2 The first bracket 310 further includes a first mounting shaft 314, which is horizontally arranged and whose two ends are respectively fixedly connected to two first support rods 311. The second bracket 320 further includes a second mounting shaft 324, which is horizontally arranged and whose two ends are respectively fixedly connected to two second support rods 321. The drive mechanism 400 includes multiple connecting rods 410 and multiple telescopic drive components 420. Each connecting rod 410 is arranged opposite to and inclined, and one end of each connecting rod 410 is connected to the second mounting shaft 324. The telescopic drive members 420 are fixedly connected, with each telescopic drive member 420 positioned opposite and inclined. The fixed end of each telescopic drive member 420 is hinged to the first mounting shaft 314, and the telescopic end of each telescopic drive member 420 is hinged to the other end of each connecting rod 410. This drives the connecting rods 410 to rotate, adjusting their tilt angle. A special air system allows for simultaneous inflation and pressurization into one side cavity of the two telescopic drive members 420, causing the telescopic ends of the two telescopic drive members 420 to extend synchronously and drive the two connecting rods 410 to rotate upwards synchronously. This allows the connection to be made via the second... The mounting shaft 324 drives the two second support rods 321 to rotate upwards synchronously. The upper ends of the second support rods 321 gradually approach the upper ends of the first support rods 311. Since the second support rods 321 and the first support rods 311 are cross-connected and hinged to each other, as the upper ends of the second support rods 321 gradually approach the upper ends of the first support rods 311, the lower ends of the first support rods 311 gradually approach the lower ends of the second support rods 321. The upper platform 200 rises. When the air system synchronously pressurizes the other cavity of the two telescopic drive members 420, the telescopic ends of the two telescopic drive members 420 retract synchronously. The two connecting rods 410 are driven to rotate downwards synchronously, thereby driving the two second support rods 321 to rotate downwards synchronously via the second mounting shaft 324. The upper ends of the second support rods 321 gradually move away from the upper ends of the first support rods 311. Since the second support rods 321 and the first support rods 311 are cross-connected and hinged to each other, as the upper ends of the second support rods 321 gradually move away from the upper ends of the first support rods 311, the lower ends of the first support rods 311 gradually move away from the lower ends of the second support rods 321. The upper platform 200 descends. Special air circuit control is used to eliminate the impact of gravity and make the lifting and lowering smooth.

[0032] As a preferred embodiment, please refer to Figure 1 and Figure 2 The first mounting shaft 314 is close to the lower end of the first support rod 311. The limiting mechanism 500 includes two limiting blocks 510, which are arranged opposite each other and are located between the corresponding first support rod 311 and second support rod 321 to abut against the first mounting shaft 314. When the two limiting blocks 510 abut against the first mounting shaft 314, the upper platform 200 reaches a preset height and connects with the production line. When the upper end of the second support rod 321 gradually approaches the upper end of the first support rod 311, the lower end of the first support rod 311 gradually approaches the lower end of the second support rod 321. Throughout the process, the upper platform 200 gradually rises until the first mounting shaft 314 abuts against the two limiting blocks 510. The air circuit system stops synchronously inflating and pressurizing one side cavity of the two telescopic drive members 420, and the upper platform 200 is maintained at the preset height.

[0033] As a preferred embodiment, please refer to Figure 1 and Figure 2 The lifting mechanism 300 further includes a connecting component 330, which is detachably rotatably inserted through the intersection of the first bracket 310 and the second bracket 320, so that the first bracket 310 and the second bracket 320 can rotate relative to the connecting component 330. The connecting component 330 facilitates the assembly and disassembly of the first bracket 310 and the second bracket 320.

[0034] As a preferred embodiment, please refer to Figure 1 and Figure 2 The first support rod 311 has a first mounting hole at its middle portion, and the second support rod 321 has a second mounting hole at its middle portion. The connecting assembly 330 includes a screw rod 331 and two nuts 332. The screw rod 331 rotatably passes through the two first mounting holes and the two second mounting holes. The two nuts 332 are both sleeved on the screw rod 331 and threadedly connected to it. The two nuts 332 abut against the outer walls of the two first support rods 311 one by one. By rotating the screw rod 331 through the two first mounting holes and the two second mounting holes, and then threading the two nuts 332 onto the screw rod 331, and rotating the two nuts 332 until they abut against the outer walls of the two first support rods 311 one by one, the installation of the two first support rods 311 and the two second support rods 321 can be completed.

[0035] As a preferred embodiment, please refer to Figure 1 and Figure 2 The second mounting shaft 324 is a hollow structure and is coaxial with the second mounting hole. The screw 331 also rotatably passes through the second mounting shaft 324. Since the screw 331 is relatively long, when the screw 331 rotates through the second mounting shaft 324, the second mounting shaft 324 can support the screw 331, prevent the middle part of the screw 331 from deforming, and improve the service life of the screw 331.

[0036] To better understand this utility model, the following is combined with... Figure 1 - Figure 2 The working principle of the technical solution of this utility model will be described in detail below:

[0037] In use, a special air circuit system can synchronously pressurize one side cavity of the two telescopic drive members 420, causing the telescopic ends of the two telescopic drive members 420 to extend synchronously and drive the two connecting rods 410 to rotate synchronously upwards. This, in turn, drives the two second support rods 321 to rotate synchronously upwards via the second mounting shaft 324. The upper ends of the second support rods 321 gradually approach the upper ends of the first support rods 311. Because the second support rods 321 and the first support rods 311 are cross-connected and hinged to each other, when the second support rods 321... As the upper end of the first support rod 311 gradually approaches the upper end of the first support rod 311, the lower end of the first support rod 311 gradually approaches the lower end of the second support rod 321. Throughout this process, the upper platform 200 gradually rises until the first mounting shaft 314 abuts against the two limiting blocks 510. The air system stops synchronously inflating and pressurizing one side cavity of the two telescopic drive members 420. The upper end of the second support rod 321 stops moving, and correspondingly, the lower end of the first support rod 311 also stops moving. At this time, the upper platform 200 reaches the preset height and maintains it. At the preset height, the upper platform 200 is accurately aligned with the production line. When the air system synchronously pressurizes the other side cavity of the two telescopic drive members 420, the telescopic ends of the two telescopic drive members 420 retract synchronously, driving the two connecting rods 410 to rotate downwards synchronously. This allows the two second support rods 321 to rotate downwards synchronously via the second mounting shaft 324. The upper ends of the second support rods 321 gradually move away from the upper ends of the first support rods 311. Because the second support rods 321 and the first support rods 311 are arranged crosswise and... The upper platform 200 is hinged together. As the upper end of the second support rod 321 gradually moves away from the upper end of the first support rod 311, the lower end of the first support rod 311 gradually moves away from the lower end of the second support rod 321, causing the upper platform 200 to descend. The limiting mechanism 500 in this scissor-type lifting platform can prevent the upper platform 200 from exceeding the production line during the rising process. Each time the upper platform 200 is raised, it is no longer necessary to adjust the rising height of the upper platform 200 multiple times, which can ensure that the upper platform 200 is accurately connected to the production line and improve the efficiency of loading and unloading.

[0038] The scissor-type lifting platform provided by this utility model has the following beneficial effects:

[0039] (1) Rotate the screw 331 through the two first mounting holes and the two second mounting holes, and then thread the two nuts 332 onto the screw 331. Rotate the two nuts 332 until the two nuts 332 abut against the outer side walls of the two first support rods 311 one by one. This completes the installation of the two first support rods 311 and the two second support rods 321, and makes it convenient to assemble and disassemble the first support rods 311 and the second support rods 321.

[0040] (2) The screw 331 can be supported by the second mounting shaft 324 to prevent deformation of the middle part of the screw 331 and improve the service life of the screw 331;

[0041] (3) The limiting mechanism 500 in this scissor-type lifting platform can prevent the upper platform 200 from exceeding the production line during the lifting process. Each time the upper platform 200 is raised, it is no longer necessary to adjust the lifting height of the upper platform 200 multiple times, which can ensure that the upper platform 200 is accurately connected to the production line and improve the loading and unloading efficiency.

[0042] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A scissor-type lifting platform, characterized in that, include: Off-platform; The upper platform is positioned above the lower platform; A lifting mechanism includes a first bracket and a second bracket that are arranged crosswise and hinged to each other. The upper end of the first bracket is hinged to the upper platform, and the lower end of the first bracket is slidably connected to the lower platform. The lower end of the second bracket is hinged to the lower platform, and the upper end of the second bracket is slidably connected to the upper platform. A driving mechanism, which is connected to the second bracket, is used to drive the upper end of the second bracket to move closer to or further away from the upper end of the first bracket; A limiting mechanism is disposed on the lower platform and located between the first bracket and the second bracket, so as to abut against the lower end of the first bracket.

2. The scissor-type lifting platform according to claim 1, characterized in that, The first support includes two first support rods, a first connecting shaft, and two first rollers. The two first support rods are arranged opposite each other and at an incline. The upper ends of the two first support rods are hinged to the upper platform. The two ends of the first connecting shaft are fixedly connected to the two first support rods respectively. The wheel frames of the two first rollers are fixedly connected to the lower ends of the two first support rods one by one. The two first rollers are slidably connected to the lower platform.

3. The scissor-type lifting platform according to claim 2, characterized in that, The second support includes two second support rods, a second connecting shaft, and two second rollers. The two second support rods are arranged opposite each other and at an angle, and the two second support rods are arranged crosswise with the two first support rods and are hinged to each other. The lower ends of the two second support rods are hinged to the lower platform. The two ends of the second connecting shaft are fixedly connected to the two second support rods respectively. The wheel frames of the two second rollers are fixedly connected to the upper ends of the two second support rods respectively. The two second rollers are slidably connected to the upper platform.

4. The scissor-type lifting platform according to claim 3, characterized in that, The two second struts are located between the two first struts.

5. The scissor-type lifting platform according to claim 2, characterized in that, The lower platform has two first sliding grooves, and two first rollers are rolled in the two first sliding grooves in a corresponding manner.

6. The scissor-type lifting platform according to claim 3, characterized in that, The upper platform has two second sliding grooves, and two second rollers are rolled in the two second sliding grooves in a one-to-one correspondence.

7. The scissor-type lifting platform according to claim 3, characterized in that, The first bracket further includes a first mounting shaft, which is horizontally arranged and its two ends are respectively fixedly connected to two first support rods. The second bracket further includes a second mounting shaft, which is horizontally arranged and its two ends are respectively fixedly connected to two second support rods. The driving mechanism includes multiple connecting rods and multiple telescopic driving components. Each connecting rod is arranged opposite to and inclined, and one end of each connecting rod is fixedly connected to the second mounting shaft. Each telescopic driving component is arranged opposite to and inclined, and the fixed end of each telescopic driving component is hinged to the first mounting shaft. The telescopic end of each telescopic driving component is hinged to the other end of each connecting rod, thereby driving the connecting rod to rotate and adjusting the tilt angle of the connecting rod.

8. The scissor-type lifting platform according to claim 7, characterized in that, The first mounting shaft is close to the lower end of the first support rod. The limiting mechanism includes two limiting blocks, which are arranged opposite each other and are located between the corresponding first support rod and second support rod to abut against the first mounting shaft. When the two limiting blocks abut against the first mounting shaft, the upper platform reaches a preset height and connects with the production line.

9. The scissor-type lifting platform according to claim 8, characterized in that, The lifting mechanism further includes a connecting component that is detachably rotatable through the intersection of the first bracket and the second bracket, so that the first bracket and the second bracket can rotate relative to the connecting component.

10. The scissor-type lifting platform according to claim 9, characterized in that, The first support rod has a first mounting hole at its middle part, and the second support rod has a second mounting hole at its middle part. The connecting assembly includes a screw rod and two nuts. The screw rod rotates through the two first mounting holes and the two second mounting holes. The two nuts are both sleeved on the screw rod and are threadedly connected to the screw rod. The two nuts abut against the outer side walls of the two first support rods one by one.

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