Scissor fork type lifting mechanism

Abstract

The utility model relates to a scissor fork type lifting mechanism, which comprises a lifting mechanism main body, a driving device, a locking device and an anti-swing guide device, the driving device is arranged in the lifting mechanism main body, the locking device is connected with the lifting mechanism main body through a pin shaft, and the anti-swing guide device is connected between an upper platform and a lower platform of the lifting mechanism main body. In the ship environment, when the lifting mechanism is located in the middle of the cabin and the peripheral cabin wall is not provided with a fixed installation base, conveying operation can be stably carried out, and risks are reduced. The lifting mechanism can be stopped and fixed at any position in the stroke through the locking device, so that the lifting device can adapt to various lifting working conditions and can work at various lifting heights, and the universality of the lifting device is improved.

Description

Technical Field

[0001] This utility model relates to a lifting mechanism, specifically a scissor lift mechanism. Background Technology

[0002] Currently, the lifting mechanisms in the industry have the following problems: Since marine lifting platforms generally have large loads and are usually equipped with guide rails, the lifting platform needs to be close to the cabin and occupy a large space, requiring many interfaces and having high requirements for cabin layout. Therefore, there is a lack of a lifting device that can adapt to the swaying of the ship and has high adaptability to the installation position.

[0003] Currently, scissor lifts are widely used in land-based aerial work operations. Their relatively stable operating environment makes them well-suited for land-based tasks. However, their application in marine lifting systems is relatively limited. This is primarily because the hull is prone to swaying in a marine environment, where scissor lifts perform poorly. In contrast, most marine lifting systems utilize wire rope traction, but this type is generally used for applications requiring higher lifting heights or larger loads. Therefore, a novel scissor lift mechanism and its operating method are needed to address the challenges of ship swaying and lower lifting heights. Summary of the Invention

[0004] This utility model provides a scissor lift mechanism and its operating method, which can meet the needs of stable transport operations in a ship environment when the lift mechanism is located in the middle of the cabin and there is no fixed mounting base on the surrounding bulkhead, thereby reducing risks.

[0005] To achieve the above objectives, the technical solution of this utility model is: a scissor lift mechanism, comprising a lift mechanism body, a drive device, a locking device, and an anti-sway guide device. The drive device is located inside the lift mechanism body, the locking device is connected to the lift mechanism body via a pin, and the anti-sway guide device is connected between the upper platform and the lower platform of the lift mechanism body.

[0006] Furthermore, the main body of the lowering mechanism includes an upper platform, a support frame, a pin shaft, a lower platform, rollers, and a limit block. The support frame is connected to the upper and lower platforms via the pin shaft, and the rollers are connected to the support frame via the pin shaft and to the upper and lower platforms via the limit block.

[0007] Furthermore, a drive unit is connected to the middle of the support frame; a locking device is installed on the lower platform.

[0008] Furthermore, the drive unit includes a fixed pin, a hydraulic cylinder, and a valve block. The hydraulic cylinder is connected to the support frame via the fixed pin, and the drive unit raises and lowers the upper platform by driving the support frame.

[0009] Furthermore, the locking device includes a bushing, an upper housing, a drive block, and a lower housing. The upper and lower housings are equipped with racks. The bushing is sleeved on the roller shaft of the lowering mechanism body and is fixedly connected to the upper housing. The drive block is connected to the upper housing through its internal rod. The lower housing is fixed on the lower platform. The drive block controls the engagement and disengagement between the racks of the upper and lower housings by extending and retracting its internal rod.

[0010] Furthermore, the anti-sway guide device includes a support frame, a shaft, a guide frame, and guide wheels. The support frame is fixed to the bottom of the upper platform by bolts, the guide frame is fixed to the top of the lower platform by bolts, and there are four guide wheels, which are placed in the grooves of the guide frame.

[0011] The beneficial effects of this utility model are:

[0012] This invention enables stable transport operations in a marine environment when the lifting mechanism is located in the middle of the cabin and there is no fixed mounting base on the surrounding bulkheads, thus reducing risks.

[0013] This utility model has the following advantages compared with the prior art:

[0014] 1. This utility model is a scissor lift mechanism. When the lift mechanism is arranged in the middle of the cabin, it can still operate smoothly under the condition of ship rolling. Moreover, it has low requirements for installation interface, which allows the device to operate in complex construction environments and improves the environmental adaptability of this utility model.

[0015] 2. This utility model can stop and fix the lifting mechanism at any position within its stroke by means of a locking device, so that this utility model can adapt to a variety of lifting conditions and can operate at a variety of lifting heights, thus improving the versatility of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the scissor lift mechanism of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the lifting mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the drive device structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the locking device structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the anti-sway guiding device of this utility model;

[0021] Figure 6This is a schematic diagram of the workflow of this utility model;

[0022] In the figure: Lifting mechanism body 1, drive device 2, locking device 3, anti-sway guide device 4, upper platform 11, support frame 12, pin 13, lower platform 14, roller 15 and limit block 16, fixed pin 21, oil cylinder 22, valve block 23, bushing 31, upper housing 32, drive block 33, lower housing 34, support frame 41, shaft 42, guide frame 43, guide wheel 44. Detailed Implementation

[0023] The exemplary embodiments, features, and aspects of this utility model will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions.

[0024] The embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the protection scope of the present invention.

[0025] Specifically, this utility model provides a scissor lift mechanism, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a lifting mechanism body 1, a driving device 2, a locking device 3, and an anti-sway guide device 4.

[0026] The drive device 2 is located inside the lifting mechanism body 1, the locking device 3 is connected to the lifting mechanism body 1 by a pin, and the anti-sway guide device 4 is connected to the lifting mechanism body 1 by bolts.

[0027] like Figure 2 As shown, the main body 1 of the lifting mechanism includes an upper platform 11, a support frame 12, a pin 13, a lower platform 14, rollers 15, and a limiting block 16. The support frame 12 is connected to the upper platform 11 and the lower platform 14 via the pin 13. The rollers 15 are connected and fixed to the support frame 12 via the pin 13. The limiting block 16 is connected to the upper platform 11 and the lower platform 14 via bolts.

[0028] like Figure 3 As shown, the drive device 2 includes a fixed pin 21, a hydraulic cylinder 22, and a valve block 23. The hydraulic cylinder 22 is connected to the support frame 12 via the fixed pin 21. The drive device 2 drives the support frame 12 to lift and lower the upper platform 11.

[0029] like Figure 4As shown, the locking device 3 is placed on the lower platform 11. The locking device 3 includes a bushing 31, an upper housing 32, a drive block 33, and a lower housing 34. The upper housing 32 and the lower housing 34 are provided with racks. The bushing 31 is sleeved on the roller 15 shaft of the lowering mechanism body 1 and is fixedly connected to the upper housing 32. The drive block 33 is connected to the upper housing 32 through its internal rod. The lower housing 34 is fixed on the lower platform 1. The drive block 33 controls the engagement and disengagement between the rack of the upper housing 32 and the rack of the lower housing 34 by the extension and retraction of its internal rod.

[0030] like Figure 5 As shown, the anti-sway guide device 4 is fixed to the upper platform 14 by bolts. The anti-sway guide device 4 includes a support frame 41, a shaft 42, a guide frame 43, and guide wheels 44. The support frame 41 is fixed to the bottom of the upper platform 11 by bolts, and the guide frame 43 is fixed to the upper platform 14 by bolts. There are four guide wheels 44, which move in the grooves of the guide frame 43 to ensure the stability of the upper platform 14 in the horizontal direction.

[0031] like Figure 6 As shown, this utility model also provides a method for operating a scissor lift mechanism, which includes the following steps:

[0032] S1. Upon receiving a lifting command, the locking device extends the drive block to disengage the rack between the upper and lower housings of the locking device;

[0033] S2. The driving device drives the two sides of the support frame to move, and the two support frames move to the sides at the same time. The upper platform rises, and the upper housing and the lower housing of the locking device move to the sides respectively with the rollers of the support frame.

[0034] S3. When the upper platform rises to the predetermined position, the drive device stops, the locking device retracts the drive block, the upper housing of the locking device engages with the rack of the lower housing, and the lifting platform is fixed.

[0035] S4. During the descent operation, after the drive device drives the upper platform to rise to a certain height, the drive block of the locking device extends, and the upper housing of the locking device disengages from the rack of the lower housing.

[0036] S5. The drive device drives the support frame to move inward, and the two support frames on both sides move inward at the same time. The upper platform descends, and the upper and lower housings of the locking device move inward respectively with the rollers of the support frame.

[0037] S6. When the upper platform descends to the predetermined position, the drive device stops, the locking device retracts the drive block, the upper housing of the locking device engages with the rack of the lower housing, and the lifting platform is fixed.

[0038] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A scissor lift mechanism characterized by: The lifting mechanism body, the driving device, the locking device and the anti-shaking guiding device are included, the driving device is arranged inside the lifting mechanism body, the locking device is connected with the lifting mechanism body through the pin shaft, the anti-shaking guiding device is connected between the upper platform and the lower platform of the lifting mechanism body; the anti-shaking guiding device includes the support frame, the shaft, the guiding frame and the guiding wheel, the support frame is fixed on the bottom of the upper platform through the bolt, the guiding frame is fixed above the lower platform through the bolt, and the guiding wheel is four in total and is placed in the sliding groove of the guiding frame.

2. The scissor lift mechanism of claim 1, wherein: The lifting mechanism body includes the upper platform, the support frame, the pin shaft, the lower platform, the roller and the limiting block, the support frame is connected with the upper platform and the lower platform through the pin shaft, the roller is connected with the support frame through the pin shaft and is connected with the upper platform and the lower platform through the limiting block.

3. The scissor lift mechanism of claim 2, wherein: The middle part of the support frame is connected with the driving device; the locking device is installed on the lower platform.

4. The scissor lift mechanism of claim 1, wherein: The driving device includes the fixed pin shaft, the oil cylinder and the valve block, the oil cylinder is connected with the support frame through the fixed pin shaft, the driving device drives the support frame to realize the lifting of the upper platform.

5. The scissor lift mechanism of claim 1, wherein: The locking device includes the shaft sleeve, the upper shell, the driving block and the lower shell, the upper shell and the lower shell are provided with the rack, the shaft sleeve is sleeved on the roller shaft of the lifting mechanism body and is fixedly connected with the upper shell, the driving block is connected with the upper shell through the internal rod, and the lower shell is fixed on the lower platform; the driving block controls the meshing and disengaging between the racks of the upper shell and the lower shell through the extension and contraction of the internal rod.

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