Cam component of lever connection bridge of scissor lift
By introducing a lever structure and a connecting bridge structure into the scissor lift, the problem that a single connecting shaft cannot assist the hydraulic cylinder is solved, achieving initial angle buffering of the lift, extending the service life of the hydraulic cylinder, and improving the overall structural stability.
Patent Information
- Application Number
- CN202520280671.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing scissor lift auxiliary arm connectors only have a single connecting shaft, which cannot provide angular auxiliary support to the hydraulic cylinders. This increases the difficulty of hydraulic cylinder operation during the initial lifting phase, and may lead to cylinder leakage or hydraulic pipe rupture, thus shortening the cylinder's lifespan.
A scissor lift lever connecting bridge cam component including a lever structure and a connecting bridge structure was designed. The lever structure is hinged to the hydraulic cylinder piston rod, and the connecting bridge shaft pin slides in the slide structure to provide angular buffer and reduce the initial load on the hydraulic cylinder.
In the initial stage of the lift, angle buffering is provided to reduce the pressure on the hydraulic cylinder, extend the cylinder life, and improve the stability and durability of the lift.
Smart Images
Figure CN223722715U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to lifting machine technical field, concretely is a kind of scissor lifting machine lever connecting bridge cam component. BACKGROUND
[0002] Scissor lifting machine is the automobile repair machinery for automobile repair industry, generally drives lifting by hydraulic system, therefore also called hydraulic lifting machine, scissor lifting machine plays the vital role in automobile maintenance, whole vehicle overhaul and maintenance cannot do without scissor lifting machine, under normal circumstances, scissor lifting machine one side lifting platform exists two-section fork type scissor arm, and there are left and right two groups of such structures, in the upper section fork type scissor arm, there is the connecting shaft or the form of connecting shaft and reinforcing rib combination connecting hydraulic oil cylinder and left and right two-section scissor arm, the structure first plays the role of lever connection, can make scissor arm pass the force that hydraulic oil cylinder is transmitted to scissor arm by the connecting shaft or connecting member, make scissor arm rise upwards, in turn make lifting platform rise, secondly, it plays the role of supporting fulcrum after lifting machine platform rises load, can make lifting platform load too large after upward lifting process more stable and smooth.
[0003] At present, in the auxiliary arm connecting piece of existing scissor lifting machine, there is only single connecting shaft, the structure cannot give hydraulic cylinder auxiliary support in angle at the initial stage of scissor lifting machine lifting work, increases the difficulty of hydraulic cylinder work at the initial stage of scissor lifting machine lifting, if pressure is too large, it can lead to cylinder body oil leakage or hydraulic oil pipe rupture, shortens the service life of oil cylinder, for this purpose, the utility model provides a kind of scissor lifting machine lever connecting bridge cam component. UTILITY MODEL CONTENTS
[0004] In order to solve the problem that in the auxiliary arm connecting piece of existing scissor lifting machine, there is only single connecting shaft, the structure cannot give hydraulic cylinder auxiliary support in angle at the initial stage of scissor lifting machine lifting work, increases the difficulty of hydraulic cylinder work at the initial stage of scissor lifting machine lifting, if pressure is too large, it can lead to cylinder body oil leakage or hydraulic oil pipe rupture, shortens the service life of oil cylinder, the utility model provides the following technical scheme: a kind of scissor lifting machine lever connecting bridge cam component, including scissor lifting machine scissor arm and oil cylinder, the scissor lifting machine scissor arm has four and two two pairs of symmetrically arranged in scissor type, two pairs of scissor lifting machine scissor arm are hinged by connecting shaft, one pair of scissor lifting machine scissor arm bottom end is provided with integral connecting bridge component between connecting shaft, the integral connecting bridge component includes lever structure and connecting bridge structure, one end of the lever structure is hinged with scissor lifting machine scissor arm, the other end of the lever structure is hinged with connecting bridge structure, a pair of scissor lifting machine scissor arm opposite sides are provided with connecting bridge shaft pin, connecting bridge structure is equipped with slide structure, the slide structure is slidably connected with connecting bridge shaft pin, the lever structure is hinged to the end of oil cylinder piston rod.
[0005] Preferably, the lever structure includes a lever structure pin, a lever structure connecting plate, and a lever structure reinforcing rib. The lever structure pin has bosses at both ends, which match and are hinged to the shaft holes on the scissor arms of the scissor lift. The lower end of the lever structure connecting plate has a semi-circular structure that matches the middle part of the lever structure pin. The lever structure connecting plate has a first reinforcing rib and a second reinforcing rib welded to its sides and middle position, respectively. The upper end of the lever structure connecting plate has a shaft hole. The lever structure connecting plate is hinged to the end of the cylinder piston rod via the pin. The end of the cylinder piston rod has a connecting shaft hole that matches the pin.
[0006] Preferably, the connecting bridge structure includes two connecting bridges arranged symmetrically. Each connecting bridge has a shaft hole that matches the axle pin. The connecting bridge is connected to the lever structure connecting plate via the axle pin. Each connecting bridge has a slide structure and a connecting bridge shaft hole. A connecting bridge axle pin is slidably connected within the slide structure. The connecting bridge axle pin has a pin groove that matches the slide structure. The connecting bridge axle pin is connected to the scissor arm of the scissor lift via a shaft hole.
[0007] Preferably, a washer is provided on the outer periphery of the shaft pin. The washer is located on the outside of the shaft hole at the end of the cylinder, which serves to prevent loosening and buffer, and prevent the shaft pin from becoming loose or damaged.
[0008] Preferably, one end of one pair of scissor arms of the scissor lift away from the integral connecting bridge component is provided with a connecting plate, and the other end is provided with a reinforcing plate to enhance the rigidity and load-bearing capacity of the scissor arms of the scissor lift.
[0009] Preferably, the outer side of the scissor arms of the scissor lift is provided with scissor arm reinforcing ribs to increase the bending and compressive strength of the scissor arms and improve the stability and durability of the overall structure.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] In the initial operation of the scissor lift, the four scissor arms at the top of the lift are parallel, and the connecting bridge is also parallel to the scissor arms. At this time, the connecting bridge pin is at the end closest to the connecting bridge shaft hole. Because the pin is first subjected to the force of the hydraulic cylinder piston rod, the piston rod will first push the pin upwards. Since one end of the connecting bridge is fixed to the pin, the connecting bridge shaft hole end will also be pushed up. Because the connecting bridge pin is fixed to the scissor arms, the connecting bridge will move towards the track of the slide structure. That is, the connecting bridge pin will slide from the end closest to the connecting bridge shaft hole to the end of the connecting bridge slide structure. The hydraulic cylinders provide a buffer during the initial lifting operation of the scissor lift. When the connecting bridge pin reaches the end of the connecting bridge slide structure, the hydraulic cylinders can lift at a more optimal angle, thus reaching the maximum lifting height. When the scissor lift descends, the hydraulic cylinder piston rod retracts, and the connecting bridge pin moves from the end of the connecting bridge slide structure to the end near the connecting bridge shaft hole. Finally, the connecting bridge and the scissor arm of the scissor lift fall parallel to each other. This process relieves the force exerted on the scissor arm of the scissor lift during the initial lifting operation, allowing the hydraulic cylinders to overcome the difficulties encountered in the early stages of operation and thus reducing the pressure on the hydraulic cylinders. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram showing the positional relationship between the components of this utility model and the scissor lift.
[0014] Figure 2 This is a schematic diagram of the overall components of this utility model.
[0015] Figure 3 This is a top view of the lever structure of this utility model.
[0016] Figure 4 This is a top view of the connecting bridge structure of this utility model.
[0017] Figure 5 This is a top view of the connecting bridge pin structure of this utility model.
[0018] In the diagram: 1. Scissor lift arm; 2. Connecting plate; 3. Scissor arm reinforcing rib; 4. Connecting bridge pin; 4-1. Pin groove; 5. Lever structure pin; 5-1. Boss structure; 6. Hydraulic cylinder; 7. Reinforcing plate; 8. Connecting bridge; 8-1. Slide structure; 8-2. Connecting bridge shaft hole; 9. Washer; 10. Lever structure connecting plate; 10-1. Shaft hole; 11. Lever structure reinforcing rib; 11-1. First reinforcing rib; 11-2. Second reinforcing rib; 12. Pin. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0020] By Figures 1-5 The utility model discloses a scissors lifting machine scissors arm 1 and oil cylinder 6, scissors lifting machine scissors arm 1 has four and two two pair of scissors symmetry setting, two pairs of scissors lifting machine scissors arm 1 are hinged through connecting shaft, one pair of scissors lifting machine scissors arm 1 bottom and the connecting axle between the whole connecting bridge component is provided, the whole connecting bridge component includes lever structure and connecting bridge structure, one end of lever structure is hinged with scissors lifting machine scissors arm 1, the other end of lever structure is hinged with connecting bridge structure, a pair of scissors lifting machine scissors arm 1 opposite two sides are provided with connecting bridge axle pin 4, the connecting bridge structure is equipped with slide structure 8-1, the slide structure 8-1 is slidably connected with connecting bridge axle pin 4, and the lever structure is hinged to the piston rod end of oil cylinder 6.
[0021] The lever structure includes lever structure axle pin 5, lever structure connecting plate 10 and lever structure reinforcing rib 11, the both ends of lever structure axle pin 5 are provided with boss structure 5-1, the boss structure 5-1 is matched with the shaft hole on the scissors lifting machine scissors arm 1 and is hinged, the lower end of lever structure connecting plate 10 is provided with semicircular structure matched with the middle part of lever structure axle pin 5, the both sides and the middle position of lever structure connecting plate 10 are welded with first reinforcing rib 11-1 and second reinforcing rib 11-2 respectively, the upper end of lever structure connecting plate 10 is provided with shaft hole 10-1, and the lever structure connecting plate 10 is hinged with the piston rod end of oil cylinder 6 through axle pin 12.
[0022] The connecting bridge structure includes connecting bridge 8, the connecting bridge 8 has two, two connecting bridges 8 are symmetrically arranged, and the shaft hole matched with axle pin 12 is formed in the two connecting bridges 8. The connecting bridge 8 is connected with the lever structure connecting plate 10 through the axle pin 12. The slide structure 8-1 and the connecting bridge shaft hole 8-2 are arranged on the two connecting bridges 8. The connecting bridge axle pin 4 is slidably connected in the slide structure 8-1. The pin groove 4-1 is formed in the connecting bridge axle pin 4. The pin groove 4-1 is matched with the slide structure 8-1. The connecting bridge axle pin 4 is connected with the scissors lifting machine scissors arm 1 through the shaft hole in the scissors lifting machine scissors arm 1.
[0023] The outer periphery of the axle pin 12 is provided with a gasket 9. The gasket 9 is arranged outside the shaft hole at the end of the oil cylinder 6. The gasket 9 plays a role of preventing loosening and buffering, and prevents the axle pin from loosening or being damaged.
[0024] One end of the pair of scissor lift arms 1, away from the overall connecting bridge component, is provided with a connecting plate 2, and the other end is provided with a reinforcing plate 7, to enhance the rigidity and load-bearing capacity of the scissor lift arms 1.
[0025] The outer side of the scissor arm 1 of the scissor lift is provided with scissor arm reinforcing ribs 3, which increases the bending and compressive resistance of the scissor arm 1 of the scissor lift and improves the stability and durability of the overall structure.
[0026] Working principle: In the initial stage of operation of the scissor lift, the four scissor arms 1 at the top of the scissor lift are parallel, and the connecting bridge 8 is also parallel to the scissor arms 1. At this time, the connecting bridge pin 4 is at the end near the connecting bridge shaft hole 8-2. Since the pin 12 is first subjected to the force of the piston rod of the hydraulic cylinder 6, the piston rod of the hydraulic cylinder 6 will first push the pin 12 upward. Because one end of the connecting bridge 8 is fixed on the pin 12, the end of the connecting bridge 8 with the connecting bridge shaft hole 8-2 will also be pushed up. Since the connecting bridge pin 4 is fixed on the scissor arms 1, the connecting bridge 8 will move towards the track of the slide structure 8-1, that is, the connecting bridge pin 4 will slide from the end near the connecting bridge shaft hole 8-2 to the connecting bridge slide. At the end of structure 8-1, the hydraulic cylinder 6 provides a buffer during the initial lifting operation of the scissor lift. When the connecting bridge pin 4 reaches the end of the connecting bridge slide structure 8-1, the lifting angle of the hydraulic cylinder 6 is better, thus reaching the maximum lifting height. When the scissor lift descends, the piston rod of the hydraulic cylinder 6 retracts, and the connecting bridge pin 4 moves from the end of the connecting bridge slide structure 8-1 to the end near the connecting bridge shaft hole 8-2. Finally, the connecting bridge 8 falls parallel to the scissor arm 1 of the scissor lift, relieving the force on the scissor arm 1 during the initial lifting operation, allowing the hydraulic cylinder 6 to overcome the difficulties in the early stage of operation, thereby reducing the pressure on the hydraulic cylinder 6.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A scissor lift lever connecting bridge cam member, comprising a scissor lift scissor arm (1) and an oil cylinder (6), the scissor lift scissor arm (1) has four and two pairs of scissors symmetrically arranged, two pairs of the scissor lift scissor arm (1) are hinged through a connecting shaft, characterized in that: One pair of the scissors lifting machine scissors arm (1) bottom end and connecting shaft are provided with integral connecting bridge component, the integral connecting bridge component includes lever structure and connecting bridge structure, one end of the lever structure is hinged with scissors lifting machine scissors arm (1), the other end of the lever structure is hinged with connecting bridge structure, a pair of the scissors lifting machine scissors arm (1) opposite sides are provided with connecting bridge shaft pin (4), the connecting bridge structure is equipped with slide structure (8-1), the slide structure (8-1) is slidably connected with connecting bridge shaft pin (4), the lever structure is hinged to the end of the piston rod of oil cylinder (6).
2. A scissor lift lever link bridge cam member according to claim 1, characterized in that: The lever structure includes lever structure shaft pin (5), lever structure connecting plate (10) and lever structure reinforcing rib (11), the both ends of the lever structure shaft pin (5) are provided with boss structure (5-1), the boss structure (5-1) is matched with the shaft hole on the scissors lifting machine scissors arm (1) and is hinged, the lower end of the lever structure connecting plate (10) is provided with semicircular structure matched with the middle part of the lever structure shaft pin (5), the both sides and the middle position of the lever structure connecting plate (10) are welded with first reinforcing rib (11-1) and second reinforcing rib (11-2) respectively, the upper end of the lever structure connecting plate (10) is provided with shaft hole (10-1), the lever structure connecting plate (10) is hinged with the end of the piston rod of oil cylinder (6) through shaft pin (12), the end of the piston rod of oil cylinder (6) is provided with connecting shaft hole matched with shaft pin (12).
3. A scissor lift lever link bridge cam member according to claim 2, wherein: The connecting bridge structure includes connecting bridge (8), the connecting bridge (8) has two, two the connecting bridge (8) are symmetrically arranged, two the connecting bridge (8) are all provided with shaft hole matched with shaft pin (12), the connecting bridge (8) is connected with lever structure connecting plate (10) through shaft pin (12), two the connecting bridge (8) are all provided with slide structure (8-1) and connecting bridge shaft hole (8-2), the slide structure (8-1) is slidably connected with connecting bridge shaft pin (4), the connecting bridge shaft pin (4) is provided with pin slot (4-1), the pin slot (4-1) is matched with slide structure (8-1), the connecting bridge shaft pin (4) is connected with scissors lifting machine scissors arm (1) through the shaft hole on the scissors lifting machine scissors arm (1).
4. A scissor lift lever link bridge cam member according to claim 3, wherein: The outer periphery of the shaft pin (12) is provided with washer (9), the washer (9) is arranged on the outer side of the shaft hole of the end of oil cylinder (6).
5. A scissor lift lever link bridge cam member according to claim 4, wherein: One pair of the scissors lifting machine scissors arm (1) is provided with connecting plate (2) away from the integral connecting bridge component, and the other end is provided with reinforcing plate (7).
6. A scissor lift lever link bridge cam member according to claim 5, wherein: The outer side of the scissors lifting machine scissors arm (1) is provided with scissors arm reinforcing rib (3).