Right scissor fork of lifter
By designing an adjustable-length right scissor fork, the problem of cumbersome operation caused by the fixed stroke of traditional lifting devices is solved, realizing flexible adjustment of the lifting device's stroke and efficient use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional lifting devices have a fixed right scissor fork size, resulting in a limited maximum stroke. Disassembly and replacement are cumbersome, time-consuming, and labor-intensive, affecting efficiency.
Design a right scissor fork including a first rotating rod and a second rotating rod. Adjust the length of the extension rod through a worm gear transmission mechanism to achieve adjustment of the overall length of the scissor fork, avoiding the need to replace the entire scissor fork.
It enables flexible adjustment of the lifting device's stroke, is simple to operate, saves time and effort, and improves efficiency.
Smart Images
Figure CN223963196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of neck brace technology after thyroid surgery, specifically a right scissor fork of a lifting device. Background Technology
[0002] Lifts are common equipment in modern industry and life, and are widely used in many fields such as cargo handling, equipment maintenance, and stage lifting. Among them, the scissor fork structure is one of the core components of the lift, which realizes the lifting function by rotating around the central axis.
[0003] Traditional lifting devices typically have a fixed right scissor fork size, which limits the maximum stroke. When a higher lifting stroke is required, the entire scissor fork must be disassembled and replaced, which is a cumbersome, time-consuming, and labor-intensive process that significantly impacts the efficiency of the lifting device. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a right scissor fork of a lifting device to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution.
[0006] This utility model provides a right scissor fork for a lifting device, including a first rotating rod and a second rotating rod, which are arranged in an "X" shape and abut against each other. Both the first and second rotating rods are hollow structures. A connecting rod is fixedly installed at the middle end of the first rotating rod, near the side of the second rotating rod. The middle end of the second rotating rod is rotatably sleeved with the connecting rod. An extension rod is movably sleeved inside both ends of the first and second rotating rods. A fixing plate is fixedly installed inside both ends of the first and second rotating rods, near the side of the connecting rod. A threaded rod is rotatably sleeved inside the fixing plate. One end of the extension rod is threadedly sleeved with the corresponding threaded rod. A fixing shell is fixedly installed at the middle end of the opposite side of the first and second rotating rods. A transmission mechanism that drives the two corresponding threaded rods to rotate is installed inside the fixing shell.
[0007] Preferably, the transmission mechanism includes a worm gear and a worm. The worm is arranged parallel to the inside of the fixed shell, and both ends of the worm are rotatably connected to the inner wall of the fixed shell. Transmission rods are arranged parallel to each other on both sides of the inside of the fixed shell, and the transmission rods on both sides are perpendicular to the worm. One end of each transmission rod on both sides is rotatably connected to the inner wall of the fixed shell, and one end of each transmission rod on both sides extends into the interior of the corresponding first rotating rod and second rotating rod. Multiple worm gears are fixedly sleeved on the end of the corresponding transmission rod located inside the fixed shell. Both ends of the worm are respectively meshed with the corresponding worm gears. A first bevel gear is fixedly sleeved on the end of the transmission rod located inside the corresponding first rotating rod and second rotating rod. A second bevel gear is fixedly sleeved on the end of the threaded rod away from the corresponding extension rod. Multiple first bevel gears are meshed with the corresponding second bevel gears.
[0008] Preferably, the cross-sections of the extension rod and the corresponding first and second rotating rods are both rectangular.
[0009] Preferably, both ends of the worm extend to the outer side of the corresponding fixed housing.
[0010] Preferably, a connecting block is fixedly provided at one outer end of each of the plurality of extension rods.
[0011] Preferably, the surfaces of both the first and second rotating rods are coated with an anti-corrosion coating.
[0012] Preferably, the connecting block and the corresponding extension rod are integrally formed.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] By rotating the worm gear, the two ends of the worm gear drive the corresponding worm wheels to rotate, which in turn causes the transmission rods on both sides to rotate. This causes the first bevel gears on both sides to rotate, which in turn drives the corresponding second bevel gears to rotate, which in turn causes the threaded rods on both sides to rotate. The threaded rods then drive the corresponding extension rods to move, which in turn causes the extension rods on both sides to move relative to the first and second rotating rods. This allows for adjustment of the overall length of the scissor fork, and consequently, adjustment of the lifting device's stroke. There is no need to replace the entire scissor fork, making operation convenient, time-saving, and labor-saving. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the right scissor fork of the lifting device proposed in this utility model;
[0016] Figure 2 for Figure 1 Internal structure diagram;
[0017] Figure 3 for Figure 2 Internal structure diagram;
[0018] Figure 4 for Figure 3 A magnified schematic diagram of part A in the middle section.
[0019] In the diagram: 1. First rotating rod; 2. Second rotating rod; 3. Fixed shell; 4. Extension rod; 5. Connecting block; 6. Connecting rod; 7. Fixed plate; 8. Threaded rod; 9. Second bevel gear; 10. Transmission rod; 11. First bevel gear; 12. Worm gear; 13. Worm wheel. Detailed Implementation
[0020] A type of elevator with a right scissor fork, such as Figure 1-4 As shown, the device includes a first rotating rod 1 and a second rotating rod 2, which are arranged in an "X" shape and abut against each other. Both the first rotating rod 1 and the second rotating rod 2 are hollow structures. A connecting rod 6 is fixedly installed at the middle end of the first rotating rod 1, near the side of the second rotating rod 2. The middle end of the second rotating rod 2 is rotatably sleeved with the connecting rod 6. The surfaces of both the first rotating rod 1 and the second rotating rod 2 are coated with an anti-corrosion coating to improve their corrosion resistance and thus extend their service life. Extension rods 4 are movably sleeved inside both ends of the first rotating rod 1 and the second rotating rod 2. A fixing plate 7 is fixedly installed on one side near the connecting rod 6. A threaded rod 8 is rotatably sleeved inside the fixing plate 7. One end of the extension rod 4 is threadedly sleeved with the corresponding threaded rod 8. The cross-sections of the extension rod 4 and the corresponding first rotating rod 1 and second rotating rod 2 are all rectangular, so that the extension rod 4 can slide stably within the corresponding first rotating rod 1 and second rotating rod 2. A fixing shell 3 is fixedly installed at the middle of the opposite side of the first rotating rod 1 and the second rotating rod 2. A connecting block 5 is fixedly installed at one end of the outer side of the multiple extension rods 4 to facilitate the installation and connection of the scissor fork and the lifting device. The connecting block 5 and the corresponding extension rod 4 are integrally molded to improve the connection strength between the connecting block 5 and the corresponding extension rod 4.
[0021] like Figure 1-4As shown, the fixed housing 3 has a transmission mechanism inside that drives two corresponding threaded rods 8 to rotate. The transmission mechanism includes a worm gear 13 and a worm 12. The worm 12 is arranged parallel to the inside of the fixed housing 3, and both ends of the worm 12 are rotatably connected to the inner wall of the fixed housing 3. Transmission rods 10 are arranged parallel to each other on both sides of the inside of the fixed housing 3. The transmission rods 10 on both sides are perpendicular to the worm 12, and one end of each transmission rod 10 is rotatably connected to the inner wall of the fixed housing 3. One end of each transmission rod 10 extends to the corresponding first rotating rod 1 and second rotating rod 2. Inside, multiple worm gears 13 are fixedly sleeved on one end of the corresponding transmission rod 10 located inside the fixed housing 3. Both ends of the worm 12 are respectively meshed with the corresponding worm gears 13. Both ends of the worm 12 extend to the outside of the corresponding fixed housing 3 to facilitate the rotation of the worm 12. One end of the transmission rod 10 located inside the corresponding first rotating rod 1 and second rotating rod 2 is fixedly sleeved with a first bevel gear 11. The end of the threaded rod 8 away from the corresponding extension rod 4 is fixedly sleeved with a second bevel gear 9. Multiple first bevel gears 11 are meshed with the corresponding second bevel gear 9.
[0022] In summary: During use, rotating the worm gear 12 causes the corresponding worm wheels 13 to rotate at both ends, which in turn causes the transmission rods 10 on both sides to rotate, which in turn causes the first bevel gears 11 on both sides to rotate. The first bevel gears 11 drive the corresponding second bevel gears 9 to rotate, which in turn causes the threaded rods 8 on both sides to rotate. The threaded rods 8 drive the corresponding extension rods 4 to move, which in turn causes the extension rods 4 on both sides to move relative to the first rotating rod 1 and the second rotating rod 2. This allows for adjustment of the overall length of the scissor fork, thereby adjusting the stroke of the lifting device. There is no need to replace the entire scissor fork, making operation convenient, time-saving, and labor-saving.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A right scissor fork of a lifter, comprising a first rotating rod (1) and a second rotating rod (2), characterized in that: The first rotating rod (1) and the second rotating rod (2) are arranged in an "X" shape and abut against each other. Both the first rotating rod (1) and the second rotating rod (2) are hollow structures. A connecting rod (6) is fixedly installed at the middle end of the first rotating rod (1) and on the side close to the second rotating rod (2). The middle end of the second rotating rod (2) is rotatably sleeved with the connecting rod (6). An extension rod (4) is movably sleeved inside both ends of the first rotating rod (1) and the second rotating rod (2). A fixing plate (7) is fixedly installed inside both ends of the first rotating rod (1) and the second rotating rod (2) and on the side close to the connecting rod (6). A threaded rod (8) is rotatably sleeved inside the fixing plate (7). One end of the extension rod (4) is threadedly sleeved with the corresponding threaded rod (8). A fixing shell (3) is fixedly installed at the middle end of the opposite side of the first rotating rod (1) and the second rotating rod (2). A transmission mechanism that drives the two corresponding threaded rods (8) to rotate is provided inside the fixing shell (3).
2. The right scissor fork of the lifting device according to claim 1, characterized in that: The transmission mechanism includes a worm gear (13) and a worm (12). The worm (12) is arranged parallel to the inside of the fixed shell (3). Both ends of the worm (12) are rotatably connected to the inner wall of the fixed shell (3). Transmission rods (10) are arranged parallel to each other on both sides of the inside of the fixed shell (3). The transmission rods (10) on both sides are perpendicular to the worm (12). One end of each transmission rod (10) on both sides is rotatably connected to the inner wall of the fixed shell (3). One end of each transmission rod (10) on both sides extends to the corresponding first rotating rod (1) and second rotating rod (2). Inside 2), multiple worm gears (13) are fixedly sleeved on one end of the corresponding transmission rod (10) located inside the fixed shell (3). The two ends of the worm (12) are respectively meshed with the corresponding worm gears (13). One end of the transmission rod (10) located inside the corresponding first rotating rod (1) and second rotating rod (2) is fixedly sleeved with a first bevel gear (11). The end of the threaded rod (8) away from the corresponding extension rod (4) is fixedly sleeved with a second bevel gear (9). Multiple first bevel gears (11) are meshed with the corresponding second bevel gears (9).
3. The right scissor fork of the lifting device according to claim 1, characterized in that: The cross-sections of the extension rod (4) and the corresponding first rotating rod (1) and second rotating rod (2) are all rectangular.
4. The right scissor fork of the lifting device according to claim 2, characterized in that: Both ends of the worm (12) extend to the outside of the corresponding fixed shell (3).
5. The right scissor fork of the lifting device according to claim 1, characterized in that: A connecting block (5) is fixedly installed on one side of each of the extended rods (4).
6. The right scissor fork of the lifting device according to claim 1, characterized in that: The surfaces of the first rotating rod (1) and the second rotating rod (2) are both coated with an anti-corrosion coating.
7. The right scissor fork of the lifting device according to claim 5, characterized in that: The connecting block (5) and the corresponding extension rod (4) are integrally formed.