A movable lifting platform for maintenance
By adopting a combination of a bundling structure and a current-changing liquid on the movable lifting platform, the problem that traditional lifting devices cannot effectively fix workpieces of different shapes is solved, and rapid fixing and stable compression of workpieces of different shapes is achieved, which improves work efficiency and safety.
Patent Information
- Application Number
- CN202510078524.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-04-04
AI Technical Summary
Traditional lifting devices cannot effectively fix workpieces of different shapes, causing the workpiece to easily shake or slide during lifting, increasing the risk of operation and reducing work efficiency.
A movable lifting platform is designed, using a combination of a bundling structure and an electric fluid to achieve rapid fixation and stable compression of workpieces of different shapes through the flexible deformation of the bundling parts and the electromechanical coupling characteristics of the current fluid.
The lifting platform can quickly and reliably fix workpieces of different shapes, improve work efficiency, reduce operational difficulty, and ensure stability and safety during maintenance.
Smart Images
Figure CN119750440A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile maintenance, and in particular to a movable lifting platform for maintenance. Background Art
[0002] The movable lifting platform for maintenance is a kind of equipment widely used in maintenance work. It can provide the necessary lifting height and stability, so that maintenance personnel can perform various maintenance operations more conveniently.
[0003] Traditional lifting devices are usually equipped with fixed clamps or brackets, which are often only suitable for workpieces of specific shapes or sizes. When encountering workpieces of various shapes, these fixings often cannot be effectively fixed, causing the workpieces to shake or slip easily during the lifting process, thereby increasing the risk of the operation. Due to the diversity of workpiece shapes, traditional lifting devices often cannot be flexibly adjusted according to the actual shape of the workpiece, which means that maintenance personnel need to spend a lot of time and energy to find a suitable fixing method or to modify the lifting device, which not only reduces work efficiency but also increases costs. Summary of the invention
[0004] In order to overcome the above technical problems, an object of the present invention is to provide a movable lifting platform for maintenance.
[0005] The purpose of the present invention can be achieved through the following technical solutions: A movable lifting platform for maintenance, comprising: Two fixing frames, the two fixing frames are arranged opposite to each other; Two guide rods, fixed between the two fixing frames; Two guide blocks are respectively slidably sleeved on the two guide rods; A scissor-type lifting device, fixed on the top surfaces of the two guide blocks; A storage platform, fixed on the lifting part of the scissor-type lifting device; Two fixing rings, both fixed on the side of the storage table; The two pressing structures are both arranged on the storage platform.
[0006] As a further solution of the present invention: the compression structure comprises: A tightening member, one end of which is connected to the storage platform; A plurality of fixing rings, all fixed on the tightening member; A mounting tube, fixed to an end of the tightening member away from the storage platform, one end of the mounting tube being open; A movable block is slidably disposed in the mounting tube, and one end of the movable block extends to the outside of the mounting tube; A hook fixed to one end of the movable block located outside the mounting tube; Two limit openings are both provided on the installation tube; Two limit blocks are fixed on the movable block, and the two limit blocks are slidably arranged in the two limit openings respectively; The first spring has one end connected to the inner surface of the mounting tube and the other end connected to the movable block.
[0007] As a further solution of the present invention: the inner surface of the installation cylinder and the outer surface of the movable block are in contact with each other.
[0008] As a further solution of the present invention: the interior of the tightening member is a hollow structure, the interior of the tightening member stores electrorheological fluid, and the interior of the tightening member is fixed with a current-carrying wire, and the current-carrying wire is immersed in the electrorheological fluid.
[0009] As a further solution of the present invention: a positioning structure is provided on one of the guide rods and the corresponding guide block, and the positioning structure includes: A fixing frame, fixed to the side of the guide block, the fixing frame is in a U-shaped structure, and a through hole is formed on the fixing frame; An opening is provided on the guide block, and the opening is arranged opposite to the through hole; A pull rod passes through the through hole, and one end of the pull rod extends into the opening; A plurality of slots are provided on the guide rod; A clamping block is fixed at one end of the pull rod, and the clamping block is clamped in one of the clamping slots; A sleeve plate, fixedly sleeved on an end of the pull rod away from the clamping block; The second spring has one end connected to the fixing frame and the other end connected to the sleeve plate.
[0010] As a further solution of the present invention: the shape of the card block is adapted to the shape of the card slot.
[0011] As a further solution of the present invention: the outer surface of the pull rod and the inner wall of the perforation are in contact with each other.
[0012] As a further solution of the present invention: a plurality of the card slots are distributed in a linear array.
[0013] Beneficial effects of the present invention: The lifting platform realizes the rapid fixation of the workpiece by designing a tightening structure. The staff only needs to pass the tightening piece around the workpiece, pass it through the lifting ring and tighten it, and the workpiece can be firmly fixed on the storage platform. In this process, the tightening piece can be flexibly deformed according to the outer surface of the workpiece, so that it is suitable for workpieces of different shapes, which greatly expands the versatility and applicability of the device. In addition, by pulling the hook in the opposite direction and hanging it on the corresponding fixing ring, the position of the hook can be fixed, which further ensures the stability and safety of the workpiece during the maintenance process. This fast and reliable fixing method not only improves work efficiency, but also reduces the difficulty of operation, making maintenance work more convenient and efficient. The tightening piece significantly improves the clamping effect of the workpiece by introducing electrorheological fluid and cleverly combining it with the energized wire. When the tightening piece clamps the workpiece, the energized wire is energized to generate an electric field. The unique electromechanical coupling characteristics of the electrorheological fluid are used to make the electrorheological fluid inside the tightening piece change state under the action of the electric field. When the electric field strength is lower than the critical value, the electrorheological fluid remains in liquid state, which is convenient for the tightening piece to adapt to the shape of the workpiece; when the electric field strength is higher than the critical value, the electrorheological fluid is transformed into a solid state, which increases the structural strength of the tightening piece. Near the critical value of the electric field strength, the viscosity of the electrorheological fluid increases with the increase of the electric field strength. This characteristic enables the tightening piece to fit the shape of the workpiece closely to form a more stable fixing effect. This design not only improves the clamping force of the tightening piece on the workpiece, but also effectively prevents the workpiece from shaking on the storage table, thereby ensuring the stability and safety of the maintenance work. In addition, the adaptability of the electrorheological fluid enables the tightening piece to be applicable to workpieces of various shapes, further enhancing the versatility and practicality of the device. The staff can easily control the movement and positioning of the scissor-type lifting device. When the scissor-type lifting device needs to be moved, it only needs to pull the pull rod to disengage the block from the slot, release the restriction on the guide block, and allow the scissor-type lifting device to slide freely along the guide rod. When the scissor-type lifting device is moved to the desired working position, release the pull rod, and the elastic force of the second spring will reset the pull rod and the block, and the block will be stuck in the corresponding slot again, thereby firmly fixing the position of the guide block and the entire scissor-type lifting device, ensuring its overall stability. Through the ingenious design of the positioning structure, the position of the moving parts can be accurately controlled and firmly fixed, avoiding operational errors or safety accidents caused by unstable position, and providing a strong guarantee for the smooth progress of maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 It is a schematic diagram of the planar structure of the present invention; Figure 4 yes Figure 1 A magnified view of the structure at A; Figure 5 yes Figure 2 A magnified view of the structure at B; Figure 6 yes Figure 3 Enlarged view of the structure at location C.
[0016] In the figure: 1 a fixing frame, 2 a guide rod, 3 a guide block, 4 a scissor-type lifting device, 5 a storage platform, 6 a fixing ring, 71 a tightening member, 72 a fixing ring, 73 a mounting tube, 74 a movable block, 75 a hook, 76 a limit opening, 77 a limit block, 78 a first spring, 81 an electrorheological fluid, 82 an energized wire, 91 a fixing frame, 92 a pull rod, 93 a slot, 94 a block, 95 a sleeve plate, and 96 a second spring. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] like Figure 1-6 As shown, a movable lifting platform for maintenance includes two fixing frames 1, which are arranged opposite to each other; two guide rods 2, which are fixed between the two fixing frames 1; two guide blocks 3, which are respectively slidably sleeved on the two guide rods 2; a scissor-type lifting device 4, which is fixed on the top surface of the two guide blocks 3; a storage platform 5, which is fixed on the lifting part of the scissor-type lifting device 4; and two fixing rings 6, which are both fixed on the side of the storage platform 5. The lifting platform also includes two clamping structures, both of which are arranged on the storage platform 5. The clamping structures include: a tightening member 71, one end of which is connected to the storage platform 5; a plurality of fixing rings 72, all of which are fixed on the tightening member 71; a mounting tube 73, fixed to the end of the tightening member 71 away from the storage platform 5, and one end of the mounting tube 73 is open; a movable block 74, which is slidably arranged in the mounting tube 73, and one end of the movable block 74 extends to the outside of the mounting tube 73, and the inner surface of the mounting tube 73 and the outer surface of the movable block 74 are fitted with each other; a hook 75, fixed to the end of the movable block 74 located outside the mounting tube 73; two limit openings 76, both of which are opened on the mounting tube 73; two limit blocks 77, both of which are fixed on the movable block 74, and the two limit blocks 77 are slidably arranged in the two limit openings 76 respectively; The first spring 78 has one end connected to the inner surface of the mounting tube 73 and the other end connected to the movable block 74. The staff places the workpiece on the storage table 5 and then uses the two tightening members 71 to fix the workpiece. Specifically, the staff first passes the tightening member 71 around the workpiece, then passes the hook 75 through the lifting ring 6, and tightens the tightening member 71 so that the tightening member 71 presses the workpiece tightly. Further, the staff pulls the hook 75 in the opposite direction and hangs the hook 75 on the corresponding fixing ring 72. At this time, the position of the hook 75 can be fixed, and the tightening member 71 can fix the workpiece on the storage table 5, so as to achieve rapid fixation of the workpiece. Since the tightening member 71 can be deformed according to the outer surface of the workpiece, the tightening member 71 can compress and fix workpieces of different shapes; The interior of the tightening member 71 is a hollow structure, and an electrorheological fluid 81 is accumulated inside the tightening member 71. A current-carrying wire 82 is fixed inside the tightening member 71, and the current-carrying wire 82 is immersed in the electrorheological fluid 81. After the tightening member 71 presses the workpiece, the staff energizes the current-carrying wire 82, and the current-carrying wire 82 can generate an electric field when it is energized. The working principle of the electrorheological fluid is based on its unique electromechanical coupling characteristics. When the external electric field strength is lower than a certain critical value, the electrorheological fluid is in a liquid state; when the electric field strength is higher than this critical value, it becomes solid. Near the critical value of the electric field strength, the viscosity of the electrorheological fluid increases with the increase of the electric field strength. Therefore, when the current-carrying wire 82 is energized, the viscosity of the electrorheological fluid in the tightening member 71 will increase, which makes the tightening member 71 have a certain structural strength and forms a shape that matches the shape of the workpiece. This design can further improve the tightening effect of the tightening member 71 on the workpiece. A positioning structure is provided on one of the guide rods 2 and the corresponding guide block 3. The positioning structure includes: a fixing frame 91, fixed to the side of the guide block 3, the fixing frame 91 is a U-shaped structure, and a through hole is provided on the fixing frame 91; an opening is provided on the guide block 3, and the opening is provided opposite to the through hole; a pull rod 92 passes through the through hole, one end of the pull rod 92 extends into the opening, and the outer surface of the pull rod 92 fits with the inner wall of the through hole; a plurality of card slots 93 are provided on the guide rod 2, and the plurality of card slots 93 are distributed in a linear array; a card block 94 is fixed to one end of the pull rod 92, and the card block 94 is connected to one of the card slots 93 Inside, the shape of the block 94 is adapted to the shape of the slot 93; the sleeve 95 is fixedly sleeved on the end of the pull rod 92 away from the block 94; the second spring 96 is connected to the fixing frame 91 at one end and to the sleeve 95 at the other end. After the scissor-type lifting device 4 is moved to the working position, the staff releases the pull rod 92, so that the pull rod 92 is reset under the elastic force of the second spring 96. When the pull rod 92 is reset, it can drive the block 94 to reset, so that the block 94 is again inserted into the corresponding slot 93. At this time, the block 94 fixes the position of the guide block 3, thereby ensuring the overall stability of the scissor-type lifting device 4.
[0019] Working principle of the present invention: When the movable lifting platform for maintenance proposed by the present invention is actually used, the staff places the workpiece on the storage platform 5, and then uses two tightening members 71 to fix the workpiece. Specifically, the staff first passes the tightening member 71 around the workpiece, then passes the hook 75 through the lifting ring 6, and tightens the tightening member 71 so that the tightening member 71 presses the workpiece tightly. Further, the staff pulls the hook 75 in the opposite direction and hangs the hook 75 on the corresponding fixing ring 72. At this time, the position of the hook 75 can be fixed, and the tightening member 71 can fix the workpiece On the storage table 5, the workpiece is quickly fixed. Since the tightening member 71 can be deformed according to the outer surface of the workpiece, the tightening member 71 can compress and fix workpieces of different shapes, thereby expanding the versatility of the device. It is worth mentioning that when the staff pulls the hook 75, the hook 75 will drive the movable block 74 to move, so that the movable block 74 stretches the first spring 78. Under the elastic force of the first spring 78, the movable block 74 has a tendency to retract into the interior of the installation tube 73, so that the hook 75 can be stably hooked on the fixing ring 72; As for the tightening member 71, electrorheological fluid is accumulated inside it, and a current-carrying wire 82 is also fixed inside the tightening member 71. After the tightening member 71 presses the workpiece, the staff energizes the current-carrying wire 82. When the current-carrying wire 82 is energized, an electric field can be generated. The working principle of the electrorheological fluid is based on its unique electromechanical coupling characteristics. When the external electric field strength is lower than a certain critical value, the electrorheological fluid is in liquid state; when the electric field strength is higher than this critical value, it becomes solid. Near the critical value of the electric field strength, the viscosity of the electrorheological fluid increases with the increase of the electric field strength. Therefore, when the current-carrying wire 82 is energized, the viscosity of the electrorheological fluid in the tightening member 71 increases, which makes the tightening member 71 have a certain structural strength and forms a shape that matches the shape of the workpiece. This design can further improve the tightening effect of the tightening member 71 on the workpiece and prevent the workpiece from shaking on the storage table 5. The scissor-type lifting device 4 is slidably mounted on the two guide rods 2 through two guide blocks 3, which enables the scissor-type lifting device 4 to move along the two guide rods 2. A positioning structure is provided on one of the guide blocks 3. When moving the scissor-type lifting device 4, the staff first pulls the pull rod 92. When the pull rod 92 moves, it can drive the block 94 to move until the block 94 is disengaged from the corresponding slot 93, thereby releasing the restriction of the block 94. The guide block 3 can slide freely on the guide rod 2. After moving the scissor-type lifting device 4 to the working position, the staff releases the pull rod 92, so that the pull rod 92 is reset under the elastic force of the second spring 96. When the pull rod 92 is reset, it can drive the block 94 to reset, so that the block 94 is again inserted into the corresponding slot 93. At this time, the block 94 fixes the position of the guide block 3, thereby ensuring the overall stability of the scissor-type lifting device 4.
[0020] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.
Claims
1. A movable lifting platform for maintenance, characterized in that: include: Two fixing frames (1), the two fixing frames (1) being arranged opposite to each other; Two guide rods (2) fixed between the two fixing frames (1); Two guide blocks (3) are respectively slidably mounted on the two guide rods (2); A scissor-type lifting device (4) fixed on the top surfaces of the two guide blocks (3); A storage platform (5) fixed on the lifting part of the scissor-type lifting device (4); Two fixing rings (6), both fixed on the side of the storage platform (5); The two pressing structures are both arranged on the storage platform (5).
2. A movable lifting platform for maintenance according to claim 1, characterized in that: The compression structure comprises: A tightening member (71), one end of which is connected to the storage platform (5); A plurality of fixing rings (72), all fixed on the tightening member (71); A mounting tube (73) fixed to one end of the tightening member (71) away from the storage platform (5), one end of the mounting tube (73) being open; A movable block (74) is slidably disposed in the mounting tube (73), and one end of the movable block (74) extends to the outside of the mounting tube (73); A hook (75) fixed to one end of the movable block (74) located outside the mounting tube (73); Two limiting openings (76) are both provided on the mounting tube (73); Two limit blocks (77) are both fixed on the movable block (74), and the two limit blocks (77) are respectively slidably disposed in the two limit openings (76); A first spring (78) has one end connected to the inner surface of the mounting tube (73) and the other end connected to the movable block (74).
3. A movable lifting platform for maintenance according to claim 2, characterized in that: The inner surface of the mounting tube (73) and the outer surface of the movable block (74) are in contact with each other.
4. A movable lifting platform for maintenance according to claim 3, characterized in that: The interior of the tightening piece (71) is a hollow structure, an electrorheological fluid (81) is stored inside the tightening piece (71), a current-carrying wire (82) is fixed inside the tightening piece (71), and the current-carrying wire (82) is immersed in the electrorheological fluid (81).
5. A movable lifting platform for maintenance according to claim 1, characterized in that: A positioning structure is provided on one of the guide rods (2) and the corresponding guide block (3), and the positioning structure comprises: A fixing frame (91) fixed to a side surface of the guide block (3), the fixing frame (91) being in a U-shaped structure, and having a through hole formed therein; An opening is provided on the guide block (3), the opening being arranged opposite to the through hole; A pull rod (92) passes through the through hole, and one end of the pull rod (92) extends into the opening; A plurality of slots (93) are provided on the guide rod (2); A clamping block (94) is fixed to one end of the pull rod (92), and the clamping block (94) is clamped in one of the clamping slots (93); A sleeve plate (95) fixedly sleeved on an end of the pull rod (92) away from the clamping block (94); The second spring (96) has one end connected to the fixing frame (91) and the other end connected to the sleeve plate (95).
6. A movable lifting platform for maintenance according to claim 5, characterized in that: The shape of the clamping block (94) matches the shape of the clamping slot (93).
7. A movable lifting platform for maintenance according to claim 5, characterized in that: The outer surface of the pull rod (92) and the inner wall of the perforation are in contact with each other.
8. A movable lifting platform for maintenance according to claim 5, characterized in that: The plurality of slots (93) are distributed in a linear array.