Lifter for bus battery replacement
By designing limit components and a cylinder-driven placement plate structure on the elevator, the problem of loss of control due to slippage or improper operation on bumpy or inclined sections of the equipment is solved, thus achieving the stability and safety of the equipment and ensuring the smooth installation and replacement of the battery pack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-10
AI Technical Summary
Existing car battery pack replacement lifts are prone to malfunction during movement, especially on bumpy or sloping roads, due to personnel dropping their hands or improper operation, which can lead to equipment loss of control and pose safety hazards.
A limiting component was designed, including a long rod, gears, racks, fixing blocks, and springs. When the handrail is operated, the rollers are automatically stopped to prevent the equipment from moving when the person lets go. At the same time, the stable lifting and lowering of the placement plate is achieved through the cooperation of the cylinder and the movable rod.
This effectively prevents the equipment from going out of control due to loss of control or improper operation on bumpy or sloping roads, improving the stability and safety of the equipment and ensuring the smooth installation and replacement of the battery pack.
Smart Images

Figure CN223983416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of car battery replacement lifts, specifically a bus battery replacement lift. Background Technology
[0002] A bus, also known as a public transport vehicle, is a mode of transportation that provides public transport services. It typically travels along fixed routes and stops at pre-designated stations for passengers to board and alight. As countries worldwide advocate for green travel, new energy vehicles are becoming increasingly popular and are gradually replacing traditional gasoline-powered vehicles. These new energy vehicles use battery packs mounted on the chassis as their power source. When the battery pack's charge is depleted, it needs to be recharged. This charging method results in excessively long recharging times, causing significant inconvenience for users. Later, battery swapping emerged, allowing depleted or damaged battery packs to be replaced at swapping stations, greatly saving time compared to the charging method.
[0003] According to a public disclosure of a car battery pack replacement lift (publication number: CN220723446U), the above application uses a motor output to rotate a first bevel gear. A first fixing mechanism moves a first clamping block to fix the battery pack on the placement plate. A second fixing mechanism moves a second movable block to further clamp the battery pack, preventing it from shifting. A drive mechanism moves a movable block, which in turn moves a movable rod, causing rollers to move within the inner cavity. This moves the first and second support rods, lifting the placement plate upwards and facilitating battery pack installation by workers.
[0004] However, in practical use, existing car battery pack replacement lifts still have some shortcomings. Especially when moving equipment, its stability becomes a critical issue when facing inclined or bumpy roads. Due to the equipment's weight and size, and the need for frequent movement, it is easily susceptible to loss of control if personnel let go or misoperate. This could not only damage the equipment but also injure nearby people, causing serious safety accidents. Utility Model Content
[0005] The purpose of this invention is to provide a lift for replacing batteries in public buses, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a lift for changing the battery of a bus, including a base, a handrail fixed to the surface of the base, casters installed at the bottom of the base, rollers installed at the bottom of the base, and a limit component provided on the surface of the base;
[0007] The limiting component includes:
[0008] The long rod is used to stabilize the fixing block and gear;
[0009] Gears are used to drive racks to move synchronously.
[0010] A rack and pinion is used to synchronously drive the movement of the connecting rod.
[0011] Preferably, the long rod is rotatably connected to the outer surface of the roller, a gear passes through the long rod, and the long rod is fixedly connected to the gear. A rack is slidably connected to the bottom of the base, and the rack meshes with the gear. A fixing block passes through the long rod and is slidably connected to the bottom of the base. A groove is formed on the surface of the fixing block, and an insert rod is slidably connected to the inner wall of the groove. A spring is fixed to the surface of the insert rod, and the end of the spring away from the insert rod is fixed to the inner wall of the groove. An arc-shaped groove is formed on the surface of the long rod, a connecting rod is fixed to the surface of the rack, and a stabilizing rod is fixed to the end of the connecting rod away from the rack. A sliding plate is fixed to the inside of the handrail, and the stabilizer is slidably connected to the sliding plate. A pull plate is slidably connected to the inside of the handrail, and the end of the stabilizer away from the sliding plate is fixed to the surface of the pull plate. A second spring is fixed to the surface of the pull plate, and the end of the second spring away from the pull plate is fixed to the surface of the sliding plate. A slot is provided on the surface of the roller, and a short rod is fixed to the inside of the fixing block. When a person releases their hand, the second spring is released, and the pull plate, stabilizer, connecting rod, and rack reset. The gear and long rod reverse and reset, and reset through the arc groove, short rod, fixing block, and insert rod. The insert rod enters the slot, thereby limiting the roller and preventing the base from moving further.
[0012] Preferably, a stabilizing groove is fixed to the top of the base, a slider is slidably connected to the inner wall of the stabilizing groove, a rotating rod is rotatably connected to the surface of the slider, a stabilizing block is passed through the rotating rod, the stabilizing block is slidably connected to the top of the base, a cylinder is fixed to the top of the base, the output end of the cylinder is fixed to the surface of the stabilizing block, a movable rod one is passed through the rotating rod, the movable rod one is rotatably connected to the rotating rod, a placement plate is hinged to the end of the movable rod one away from the rotating rod, a movable rod two is hinged to the top of the base, two sets of stabilizing grooves and sliders are provided, another set of stabilizing grooves and sliders is located at the bottom of the placement plate, the end of the movable rod two away from the base is hinged to the surface of a set of sliders away from the base, the movable rod one passes through the movable rod two, and the movable rod one and movable rod two are hinged, when the cylinder is opened to retract or extend, the stabilizing block drives the rotating rod to move, and the slider makes the ends of the movable rod one and movable rod two move closer or further apart, thereby raising or lowering the placement plate.
[0013] Preferably, the top of the placement plate is equipped with a clamp to facilitate clamping the battery pack and prevent displacement during lifting.
[0014] Preferably, the end of the short rod away from the fixed block extends into the arc-shaped groove, and the surface of the short rod abuts against the inner wall of the arc-shaped groove. When the long rod rotates, it can drive the fixed block to move through the arc-shaped groove and the short rod.
[0015] Preferably, the pull plate is set in a semi-circular shape, which allows the pull plate to fit against the surface of the handrail, making it easy for people to grip.
[0016] Compared with the prior art, the present invention provides a lift for replacing batteries in buses, which has the following advantages:
[0017] 1. The battery replacement lift for this bus uses a limit component. When a person moves the base by the handrail and passes over a bumpy or sloping section of road, if they accidentally lose their grip, the spring is released, and the pull plate, stabilizer bar, connecting rod, and rack reset. The gear and long rod reverse and reset, and then reset through the arc groove, short rod, fixing block, and insert rod. The insert rod enters the slot, thus limiting the roller. At this time, the base cannot continue to move, thus preventing the equipment from moving out of control due to the person losing their grip or improper operation.
[0018] 2. The battery replacement lift for this bus uses a cylinder that retracts upon opening, causing a stabilizing block to move a rotating rod. A slider brings the ends of movable rod one and movable rod two closer together, thus raising the placement plate for easy battery pack installation. Attached Figure Description
[0019] Figure 1 This is a front view structural diagram of the present invention;
[0020] Figure 2This is a side view of the structure of this utility model;
[0021] Figure 3 This utility model Figure 2 Schematic diagram of the enlarged structure of A in the middle;
[0022] Figure 4 This is a schematic diagram of the structure of this utility model from below;
[0023] Figure 5 This utility model Figure 4 Schematic diagram of the enlarged structure of B;
[0024] Figure 6 This is an exploded cross-sectional view of part of the limiting component of this utility model.
[0025] In the diagram: 1. Base; 2. Caster wheel; 3. Roller; 4. Stabilizing groove; 5. Slider; 6. Rotating rod; 7. Stabilizing block; 8. Cylinder; 10. Movable rod one; 11. Movable rod two; 12. Placement plate; 13. Clamp; 14. Handrail; 9. Limiting component; 90. Long rod; 91. Gear; 92. Rack; 93. Fixing block; 94. Slide groove; 95. Insert rod; 96. Spring one; 97. Short rod; 98. Arc groove; 99. Connecting rod; 900. Stabilizing rod; 901. Slide plate; 902. Pull plate; 903. Spring two; 904. Slot. Detailed Implementation
[0026] like Figures 1-6 As shown, this utility model provides a technical solution: a lift for changing the battery of a bus, including a base 1, a handrail 14 fixed on the surface of the base 1, casters 2 and rollers 3 installed at the bottom of the base 1, and a limit assembly 9 provided on the surface of the base 1; the limit assembly 9 includes: a long rod 90, a gear 91, a rack 92, a fixing block 93, a sliding groove 94, a plug rod 95, a first spring 96, a short rod 97, an arc groove 98, a connecting rod 99, a stabilizing rod 900, a sliding plate 901, a pull plate 902, a second spring 903, and a slot 904.
[0027] A long rod 90 is rotatably connected to the outer surface of the roller 3. A gear 91 passes through the long rod 90, and the long rod 90 is fixedly connected to the gear 91. A rack 92 is slidably connected to the bottom of the base 1, and the rack 92 meshes with the gear 91. A fixing block 93 passes through the long rod 90 and is slidably connected to the bottom of the base 1. A groove 94 is formed on the surface of the fixing block 93, and an insert rod 95 is slidably connected to the inner wall of the groove 94. A spring 96 is fixed to the surface of the insert rod 95, and the end of the spring 96 away from the insert rod 95 is fixed to the inner wall of the groove 94. An arc-shaped groove 98 is formed on the surface of the long rod 90. A connecting rod 99 is fixed to the surface of the rack 92, and a stabilizing rod 900 is fixed to the end of the connecting rod 99 away from the rack 92. A sliding plate 901 is fixed to the inner side of the handrail 14, and the stabilizing rod 900 is slidably connected to the sliding plate 901. A pull plate 902 is slidably connected to the inner side of the handrail 14. One end of the roller 902, away from the slide plate 901, is fixed to the surface of the pull plate 902. A second spring 903 is fixed to the surface of the pull plate 902. The other end of the second spring 903, away from the pull plate 902, is fixed to the surface of the slide plate 901. A slot 904 is provided on the surface of the roller 3. A short rod 97 is fixed to the inside of the fixing block 93. The other end of the short rod 97, away from the fixing block 93, extends into the arc-shaped groove 98, and the surface of the short rod 97 abuts against the inner wall of the arc-shaped groove 98. The pull plate 902 is set in a semi-arc shape. When the person lets go, the second spring 903 is released, and the pull plate 902, the stabilizing rod 900, the connecting rod 99, and the rack 92 are reset. The gear 91 and the long rod 90 are reversed and reset. The roller 3 is then reset through the arc-shaped groove 98, the short rod 97, the fixing block 93, and the insert rod 95. The insert rod 95 enters the slot 904, thereby limiting the roller 3. At this time, the base 1 cannot continue to move, thus preventing the equipment from moving out of control due to the person letting go or improper operation.
[0028] A stabilizing groove 4 is fixed to the top of the base 1. A slider 5 is slidably connected to the inner wall of the stabilizing groove 4. A rotating rod 6 is rotatably connected to the surface of the slider 5. A stabilizing block 7 passes through the rotating rod 6 and is slidably connected to the top of the base 1. A cylinder 8 is fixed to the top of the base 1, and the output end of the cylinder 8 is fixed to the surface of the stabilizing block 7. A movable rod 10 passes through the rotating rod 6 and is rotatably connected to the rotating rod 6. A placement plate 12 is hinged to the end of the movable rod 10 away from the rotating rod 6. A movable rod 11 is hinged to the top of the base 1. Two sets of stabilizing grooves 4 and sliders 5 are provided. An outer set of stabilizing grooves 4 and sliders 5 are set at the bottom of the placement plate 12. The end of the second movable rod 11 away from the base 1 is hinged to the surface of the set of sliders 5 away from the base 1. The first movable rod 10 passes through the second movable rod 11 and is hinged to the second movable rod 11. A clamp 13 is installed on the top of the placement plate 12 to fix the battery pack. When the cylinder 8 is opened to retract, the stabilizing block 7 drives the rotating rod 6 to move. The sliders 5 bring the ends of the first movable rod 10 and the second movable rod 11 closer to each other, thereby raising the placement plate 12 to facilitate the installation of the battery pack.
[0029] When the car battery needs to be replaced, the battery pack is placed on the surface of the placement plate 12 and fixed by the clamp 13. Simultaneously, it is moved using the handle 14. When the battery pack is moved below the car battery pack, the cylinder 8 retracts, and the stabilizing block 7 moves the rotating rod 6. The slider 5 brings the ends of the movable rod 10 and movable rod 11 closer together, thus raising the placement plate 12 for easy battery pack installation. During movement, the operator holds the pull plate 902 and moves it close to the handle 14. When the pull plate 902 is in contact with the surface of the handle 14, the spring 903 stretches, simultaneously moving the stabilizing rod 900 and the connecting rod 99. The connecting rod 99 then pulls the rack 92, causing the gear 91 to rotate the long rod 90. At this point, the inner wall of the arc groove 98 contacts the surface of the short rod 97, thus securing it. When block 93 moves away from roller 3, the insertion rod 95 disengages from slot 904, releasing the limit on roller 3 and allowing base 1 to move normally. If a person accidentally drops their hand, spring 903 is released, pulling pull plate 902, stabilizing rod 900, connecting rod 99, and rack 92 back to their original positions. This causes gear 91 and long rod 90 to reverse and reset. Then, through arc groove 98 and short rod 97, fixed block 93 and insertion rod 95 are reset. When the surface of insertion rod 95 contacts the outer surface of roller 3, insertion rod 95 moves into slide groove 94, and spring 96 is compressed. When insertion rod 95 is parallel to slot 904, spring 96 is released, allowing insertion rod 95 to enter slot 904, thus limiting roller 3. At this point, base 1 cannot move further, preventing personnel from dropping their hand or improper operation from causing uncontrolled movement of the equipment.
[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A bus battery replacement lift comprising a base (1), characterized in that: The surface of the base (1) is fixed with handrails (14), the bottom of the base (1) is installed with universal wheels (2), the bottom of the base (1) is installed with rollers (3), the surface of the base (1) is provided with limiting assemblies (9); The limiting assembly (9) comprises: A long rod (90) is used for stably fixing a fixed block (93) and a gear (91); The gear (91) is used for driving the synchronous movement of the rack (92); The rack (92) is used for synchronously driving the movement of the connecting rod (99), the long rod (90) is rotatably connected to the outer surface of the roller (3), the long rod (90) penetrates the gear (91), and the long rod (90) is fixedly connected with the gear (91), the bottom of the base (1) is slidably connected with the rack (92), the rack (92) is engaged with the gear (91), the long rod (90) penetrates the fixed block (93), the fixed block (93) is slidably connected to the bottom of the base (1), a sliding groove (94) is formed in the surface of the fixed block (93), an insertion rod (95) is slidably connected to the inner wall of the sliding groove (94), a spring (96) is fixed to the surface of the insertion rod (95), one end of the spring (96) away from the insertion rod (95) is fixed to the inner wall of the sliding groove (94), an arc-shaped groove (98) is formed in the surface of the long rod (90), a connecting rod (99) is fixed to the surface of the rack (92), a stabilizing rod (900) is fixed to the end of the connecting rod (99) away from the rack (92), a sliding plate (901) is fixed to the inner side of the handrail (14), the stabilizing rod (900) is slidably connected with the sliding plate (901), a pull plate (902) is slidably connected to the inner side of the handrail (14), the end of the stabilizing rod (900) away from the sliding plate (901) is fixed to the surface of the pull plate (902), a spring (903) is fixed to the surface of the pull plate (902), one end of the spring (903) away from the pull plate (902) is fixed to the surface of the sliding plate (901), an insertion slot (904) is formed in the surface of the roller (3), and a short rod (97) is fixed to the inner side of the fixed block (93).
2. A bus battery change elevator according to claim 1, characterized in that: The top of the base (1) is fixed with a stable groove (4), the inner wall of the stable groove (4) is slidably connected with a sliding block (5), the surface of the sliding block (5) is rotatably connected with a rotating rod (6), the rotating rod (6) penetrates a stabilizing block (7), the stabilizing block (7) is slidably connected on the top of the base (1), the top of the base (1) is fixed with a gas cylinder (8), the output end of the gas cylinder (8) is fixed on the surface of the stabilizing block (7), the rotating rod (6) penetrates an active rod one (10), the active rod one (10) is rotatably connected with the rotating rod (6), the end, away from the rotating rod (6), of the active rod one (10) is hingedly connected with a placing plate (12), the top of the base (1) is hingedly connected with an active rod two (11), the stable groove (4) and the sliding block (5) are both provided with two groups, the other group of the stable groove (4) and the sliding block (5) are arranged at the bottom of the placing plate (12), the end, away from the base (1), of the active rod two (11) is hingedly connected on the surface of the sliding block (5), away from the base (1), of the other group, the active rod one (10) penetrates the active rod two (11), and the active rod one (10) is hingedly connected with the active rod two (11).
3. A bus battery change elevator according to claim 2, characterized in that: The top of the placing plate (12) is mounted with a clamp (13).
4. A bus battery change elevator according to claim 1, characterized in that: The end, away from the fixed block (93), of the short rod (97) extends into the arc-shaped groove (98), and the surface of the short rod (97) abuts against the inner wall of the arc-shaped groove (98).
5. A bus battery change elevator according to claim 1, characterized in that: The pull plate (902) is arranged in a semicircular shape. The end, away from the fixed block (93), of the short rod (97) extends into the arc-shaped groove (98), and the surface of the short rod (97) abuts against the inner wall of the arc-shaped groove (98).
Citation Information
Patent Citations
Elevator for replacing automobile battery pack
CN220723446U