Power battery hoisting bracket device for electric motor coach

Abstract

The invention is applicable to the technical field of electric passenger cars, and provides a power battery hoisting bracket device for an electric passenger car, the power battery hoisting bracket device comprises a hoisting plate, the bottom of the hoisting plate is fixedly connected with a first sliding rail, the interior of the first sliding rail is slidably connected with a first connecting block, and the bottom of the first connecting block is fixedly connected with a first adjusting plate; the bottom of the first adjusting plate is fixedly connected with a second sliding rail, and the interior of the second sliding rail is slidably connected with a second connecting block. According to the device, by arranging the first adjusting plate and the second adjusting plate which are perpendicular to each other, the position of the power battery can be manually adjusted during hoisting, so that the power battery is accurately positioned and does not need to be repeatedly adjusted, and the mounting time can be greatly saved; after the device is hoisted above the power battery cabin, the telescopic rod drives the base plate to descend and enables the base plate to be in contact with the ground, so that the device is placed on the ground, and subsequent adjustment of the power battery is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of electric bus technology, and particularly relates to a power battery mounting bracket device for electric buses. Background Technology

[0002] Electric buses mainly refer to pure electric buses that run entirely on electricity. These products are characterized by low noise, high driving stability, and zero emissions. The power battery is an indispensable power source for electric buses. The production and sales volume of pure electric buses are steadily increasing, and the layout design of the power battery is also diverse. Most pure electric buses produced by bus manufacturers have a power battery compartment located in the underframe, where the power battery is installed.

[0003] Existing power batteries are quite heavy. When installing them, a small crane is needed due to their weight. The crane directly straps the power battery to itself and then lifts it into the power battery compartment. For the sake of installation stability, the size of the power battery compartment is usually matched with the size of the power battery. This means that the power battery must be accurately positioned above the power battery compartment before it can be installed. However, the crane has poor flexibility and requires repeated adjustments to the position of the power battery to ensure accurate positioning, which is quite time-consuming.

[0004] To avoid the aforementioned technical problems, it is indeed necessary to provide a power battery mounting bracket device for electric buses to overcome the deficiencies in the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a power battery hoisting bracket device for electric buses, which aims to solve the problem of wasted time caused by repeated positioning adjustments when hoisting power batteries.

[0006] This invention is implemented as follows: a power battery lifting bracket device for electric buses includes a lifting plate. A rotatable lifting ring is provided at the top of the lifting plate to facilitate adjustment of the plate's angle, enabling accurate positioning of the power battery being lifted. A first slide rail is fixedly connected to the bottom of the lifting plate. A first connecting block is slidably connected inside the first slide rail. A first adjusting plate is fixedly connected to the bottom of the first connecting block. A second slide rail is fixedly connected to the bottom of the first adjusting plate. A second connecting block is slidably connected inside the second slide rail. A second adjusting plate is fixedly connected to the bottom of the second connecting block. The second slide rail and the first slide rail are perpendicularly arranged, such that the sliding directions of the first and second adjusting plates are perpendicular to each other. This allows for arbitrary adjustment of the power battery's position within a horizontal plane, facilitating the positioning and installation of the power battery. The device also includes: A first adjustment mechanism is mounted on a hanging plate, and its output end is connected to a first adjustment plate via a transmission connection. The first adjustment mechanism is used to drive the first adjustment plate to move. The second adjustment mechanism is mounted on the first adjustment plate, and its output end is connected to the second adjustment plate via a transmission connection. The second adjustment mechanism is used to drive the second adjustment plate to move, thereby allowing the first and second adjustment plates to be adjusted independently. A fixing mechanism is installed on the hanging plate. When positioning and installing the power battery, the fixing mechanism fixes the hanging plate to the ground by abutting against the ground, which facilitates the adjustment of the first adjustment plate and the second adjustment plate. A clamping mechanism is mounted on a second adjusting plate and is used to clamp the power battery so that the power battery is fixed on the second adjusting plate.

[0007] In a further technical solution, the first adjustment mechanism includes a first motor fixedly mounted on the hanging plate, the output shaft of the first motor being fixedly connected to a first screw, and the first screw being threadedly connected to the first adjustment plate.

[0008] In a further technical solution, the second adjustment mechanism includes a second motor fixedly mounted on the first adjustment plate, the output shaft of the second motor being fixedly connected to a second screw, and the second screw being threadedly connected to the second adjustment plate.

[0009] A further technical solution includes two third slide rails fixedly connected to the top of the suspended platform. Each of the two third slide rails has an extension block slidably connected inside. Each of the opposite ends of the two extension blocks is fixedly connected to a mounting plate. A telescopic rod is fixedly connected to the mounting plate. A pad is fixedly connected to the movable end of the telescopic rod near the ground. A dual-axis motor is fixedly installed on the suspended platform, located between the two third slide rails. Each of the two output shafts of the dual-axis motor is fixedly connected to a third screw. The two third screws are threadedly connected to the two extension blocks respectively. Preferably, there are two fixing mechanisms, symmetrically distributed about the centerline of the suspended platform, thus making the suspended platform more stable.

[0010] A further technical solution includes a clamping mechanism comprising a first cavity formed in a second adjusting plate. Two first sliders are slidably connected inside the first cavity. Two brackets are fixedly connected to the opposite sides of the two first sliders. The output end of each bracket extends out of the second adjusting plate. The bracket has a U-shaped cross-section and a beveled surface at its bottom end to facilitate insertion of the bracket into the bottom of the power battery, thereby facilitating the lifting of the power battery. A first double-ended screw is rotatably connected inside the first cavity. The first double-ended screw is threadedly connected to both first sliders. A third motor is fixedly mounted on the side of the second adjusting plate. One end of the first double-ended screw, passing through the second adjusting plate, is fixedly connected to the output shaft of the third motor.

[0011] Further technical solutions also include: A side centering mechanism is installed on the first adjustment plate. The side centering mechanism is used to move the power battery to the center of the second adjustment plate, which facilitates the subsequent positioning and installation of the power battery. The transmission mechanism is connected between the side centering mechanism and the first double-ended screw. The first double-ended screw drives the side centering mechanism to move through the transmission mechanism, thereby making the bracket and the side centering mechanism move synchronously. During the clamping of the power battery, the power battery is automatically centered and corrected, making the operation more convenient.

[0012] A further technical solution includes a second cavity formed inside a first adjusting plate. Two second sliders are slidably connected inside the second cavity. Two guide plates are fixedly connected to the opposite sides of each of the two second sliders. A lever is sleeved on one end of each guide plate, and the output end of the lever extends out of the first adjusting plate. The lever has an L-shaped cross-section. A tension spring connects the guide plate and the lever. A second double-ended screw is rotatably connected inside the second cavity. The second double-ended screw is threadedly connected to the two second sliders. A transmission mechanism is connected between the first and second double-ended screws. The second sliders and the first slider are arranged perpendicularly.

[0013] A further technical solution includes a transmission mechanism comprising a first rotating shaft rotatably connected to a second adjusting plate, a first bevel gear fixedly connected to one end of the first rotating shaft extending into a first cavity, a second bevel gear fixedly connected to a first double-ended screw, the second bevel gear meshing with the first bevel gear, a second rotating shaft rotatably connected to the second adjusting plate, a third bevel gear fixedly connected to one end of the second rotating shaft, a fourth bevel gear fixedly connected to one end of the first rotating shaft extending out of the second adjusting plate, the third bevel gear meshing with the fourth bevel gear, an intermediate gear rotatably connected to the first adjusting plate, a first gear fixedly connected to one end of the second rotating shaft, the first gear meshing with the intermediate gear, a worm rotatably connected within the second cavity, a worm wheel fixedly connected to the second double-ended screw, the worm wheel meshing with the worm, a second gear fixedly connected to the worm, the second gear meshing with the intermediate gear, and a through slot for the second gear to move on the first adjusting plate. The thickness of the intermediate gear is much greater than the thickness of the first gear, and the first gear always meshes with the intermediate gear during the movement of the second adjusting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting two mutually perpendicular first and second adjustment plates, the position of the power battery can be manually adjusted during hoisting, so that the power battery can be accurately positioned without repeated adjustments, which can greatly save installation time. 2. After the device is hoisted above the power battery compartment, the dual-axis motor drives the two third screws to rotate. The third screws drive the extension block to move, so that the extension block drives the mounting plate to extend out of the hoisting plate. Then the telescopic rod drives the pad to descend and make the pad contact the ground, thereby placing the device on the ground, which facilitates the subsequent adjustment of the power battery. 3. The third motor drives the first double-ended screw to rotate. The first double-ended screw drives the two second sliders to move towards each other. The second sliders drive the bracket to clamp and lift the power battery. At the same time, the first double-ended screw drives the second double-ended screw to rotate through the transmission mechanism. The second double-ended screw drives the two first sliders to move towards each other. The first sliders drive the guide plate to move. The guide plate drives the lever plate to move through the tension spring. The two lever plates on both sides of the first adjusting plate push the power battery to the middle position of the second adjusting plate, thereby keeping the power battery balanced and facilitating the subsequent positioning of the power battery. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 This is a side view cross-sectional structural diagram of the present invention; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 This is a three-dimensional structural diagram of the dial plate mounting of the present invention.

[0016] In the attached diagram: 1. Hanging plate; 2. Hanging ring; 3. First slide rail; 4. First connecting block; 5. First adjusting plate; 6. Second slide rail; 7. Second connecting block; 8. Second adjusting plate; 9. Fixing mechanism; 91. Third slide rail; 92. Extension block; 93. Mounting plate; 94. Telescopic rod; 95. Pad plate; 96. Dual-axis motor; 97. Third screw; 10. Clamping mechanism; 101. First cavity; 102. First slider; 103. Bracket; 104. First double-ended screw; 105. Third motor; 11. First motor; 12. First screw... 13. Second motor; 14. Second screw; 15. Side centering mechanism; 151. Second cavity; 152. Second slider; 153. Guide plate; 154. Dial plate; 155. Second double-ended screw; 16. Transmission mechanism; 161. First rotating shaft; 162. First bevel gear; 163. Second bevel gear; 164. Second rotating shaft; 165. Third bevel gear; 166. Fourth bevel gear; 167. Intermediate gear; 168. First gear; 169. Worm; 1610. Worm wheel; 1611. Second gear. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0019] like Figure 1-6As shown, this invention provides a power battery lifting bracket device for electric buses, including a lifting plate 1. A rotatable lifting ring 2 is provided at the top of the lifting plate 1 to facilitate adjustment of the angle of the lifting plate 1, enabling accurate positioning of the power battery being lifted. A first slide rail 3 is fixedly connected to the bottom of the lifting plate 1. A first connecting block 4 is slidably connected inside the first slide rail 3. A first adjusting plate 5 is fixedly connected to the bottom of the first connecting block 4. A second slide rail 6 is fixedly connected to the bottom of the first adjusting plate 5. A second connecting block 7 is slidably connected inside the second slide rail 6. A second adjusting plate 8 is fixedly connected to the bottom of the second connecting block 7. The second slide rail 6 and the first slide rail 3 are perpendicularly arranged, so that the sliding directions of the first adjusting plate 5 and the second adjusting plate 8 are perpendicular to each other. This allows for arbitrary adjustment of the power battery position in the horizontal plane, facilitating the positioning and installation of the power battery. The device also includes: The first adjustment mechanism is installed on the hanging plate 1. The output end of the first adjustment mechanism is connected to the first adjustment plate 5. The first adjustment mechanism is used to drive the first adjustment plate 5 to move. The second adjustment mechanism is mounted on the first adjustment plate 5. The output end of the second adjustment mechanism is connected to the second adjustment plate 8. The second adjustment mechanism is used to drive the second adjustment plate 8 to move, so that the first adjustment plate 5 and the second adjustment plate 8 can be adjusted separately, making the operation more flexible. The fixing mechanism 9 is installed on the hanging plate 1. When positioning and installing the power battery, the fixing mechanism 9 fixes the hanging plate 1 to the ground by abutting against the ground, which facilitates the adjustment of the first adjusting plate 5 and the second adjusting plate 8. The clamping mechanism 10 is mounted on the second adjusting plate 8. The clamping mechanism 10 is used to clamp the power battery and fix the power battery on the second adjusting plate 8, so as to facilitate the hoisting of the power battery.

[0020] In embodiments of the present invention, such as Figure 3-4 As shown, in a preferred embodiment of the present invention, the first adjustment mechanism includes a first motor 11 fixedly mounted on the hanging plate 1, the output shaft of the first motor 11 is fixedly connected to a first screw 12, and the first screw 12 is threadedly connected to the first adjustment plate 5.

[0021] In embodiments of the present invention, such as Figure 1 and Figure 5 As shown, in a preferred embodiment of the present invention, the second adjustment mechanism includes a second motor 13 fixedly mounted on the first adjustment plate 5, the output shaft of the second motor 13 being fixedly connected to a second screw 14, and the second screw 14 being threadedly connected to the second adjustment plate 8.

[0022] In embodiments of the present invention, such as Figure 1 As shown, in a preferred embodiment of the present invention, the fixing mechanism 9 includes two third slide rails 91 fixedly connected to the top of the hanging plate 1. Extension blocks 92 are slidably connected inside each of the two third slide rails 91. Mounting plates 93 are fixedly connected to opposite ends of each of the two extension blocks 92. Telescopic rods 94 are fixedly connected to the mounting plates 93. A pad 95 is fixedly connected to the movable end of the telescopic rods 94 near the ground. A dual-axis motor 96 is fixedly installed on the hanging plate 1, located between the two third slide rails 91. Two output shafts of the dual-axis motor 96 are fixedly connected to third screws 97. The two third screws 97 are threadedly connected to the two extension blocks 92 respectively. Preferably, there are two fixing mechanisms 9, symmetrically distributed about the centerline of the hanging plate 1, thereby making the hanging plate 1 more stable.

[0023] In embodiments of the present invention, such as Figure 1-4 As shown, in a preferred embodiment of the present invention, the clamping mechanism 10 includes a first cavity 101 formed on the second adjusting plate 8. Two first sliders 102 are slidably connected inside the first cavity 101. Two brackets 103 are fixedly connected to the opposite sides of the two first sliders 102. The output end of the bracket 103 extends out of the second adjusting plate 8. The cross-section of the bracket 103 is U-shaped. One end of the bottom of the bracket 103 is provided with a beveled surface to facilitate the insertion of the bracket 103 into the bottom of the power battery, thereby facilitating the lifting of the power battery. A first double-ended screw 104 is rotatably connected inside the first cavity 101. The first double-ended screw 104 is threadedly connected to both first sliders 102. A third motor 105 is fixedly installed on the side of the second adjusting plate 8. One end of the first double-ended screw 104 passing through the second adjusting plate 8 is fixedly connected to the output shaft of the third motor 105.

[0024] In embodiments of the present invention, such as Figure 1-6 As shown, in a preferred embodiment of the present invention, it further includes: Side centering mechanism 15, which is installed on the first adjusting plate 5, is used to move the power battery to the center of the second adjusting plate 8, so as to facilitate the subsequent positioning and installation of the power battery. The transmission mechanism 16 is connected between the side centering mechanism 15 and the first double-ended screw 104. The first double-ended screw 104 drives the side centering mechanism 15 to move through the transmission mechanism 16, thereby making the bracket 103 and the side centering mechanism 15 move synchronously. During the clamping process of the power battery, the power battery is automatically centered and corrected, making the operation more convenient.

[0025] In embodiments of the present invention, such as Figure 1-6As shown in a preferred embodiment of the present invention, the side centering mechanism 15 includes a second cavity 151 formed inside the first adjusting plate 5. Two second sliders 152 are slidably connected inside the second cavity 151. Two guide plates 153 are fixedly connected to the opposite sides of the two second sliders 152. A lever 154 is sleeved on one end of the guide plate 153. The output end of the lever 154 extends out of the first adjusting plate 5, and the cross-section of the lever 154 is L-shaped. A tension spring is connected between the guide plate 153 and the lever 154. A second double-ended screw 155 is rotatably connected inside the second cavity 151. The second double-ended screw 155 is threadedly connected to the two second sliders 152. The transmission mechanism 16 is connected between the first double-ended screw 104 and the second double-ended screw 155. The second sliders 152 and the first slider 102 are arranged perpendicularly.

[0026] In embodiments of the present invention, such as Figure 4-5 As shown, in a preferred embodiment of the present invention, the transmission mechanism 16 includes a first rotating shaft 161 rotatably connected to a second adjusting plate 8. A first bevel gear 162 is fixedly connected to one end of the first rotating shaft 161 extending into a first cavity 101. A second bevel gear 163 is fixedly connected to the first double-ended screw 104, and the second bevel gear 163 meshes with the first bevel gear 162. A second rotating shaft 164 is rotatably connected to the second adjusting plate 8. A third bevel gear 165 is fixedly connected to one end of the second rotating shaft 164. A fourth bevel gear 166 is fixedly connected to one end of the first rotating shaft 161 extending out of the second adjusting plate 8, and the third bevel gear 165 meshes with the fourth bevel gear 166. An intermediate gear 167 is rotatably connected to the section plate 5. A first gear 168 is fixedly connected to one end of the second rotating shaft 164. The first gear 168 and the intermediate gear 167 are meshed together. A worm 169 is rotatably connected inside the second cavity 151. A worm wheel 1610 is fixedly connected to the second double-ended screw 155. The worm wheel 1610 and the worm 169 are meshed together. A second gear 1611 is fixedly connected to the worm 169. The second gear 1611 and the intermediate gear 167 are meshed together. A through slot is provided on the first adjusting plate 5 for the second gear 1611 to move. The thickness of the intermediate gear 167 is much greater than the thickness of the first gear 168. During the movement of the second adjusting plate 8, the first gear 168 is always meshed with the intermediate gear 167.

[0027] In use, connect the lifting ring 2 on the lifting plate 1 to the wire rope of the crane, and move the device above the power battery. Slowly lower the device until the bottom of the bracket 103 is level with the bottom of the power battery. The third motor 105 drives the first double-ended screw 104 to rotate. The first double-ended screw 104 drives the two second sliders 152 to move towards each other. The second sliders 152 drive the bracket 103 to move below the power battery. At the same time, the first double-ended screw 104 drives the second bevel gear 163 to rotate. The second bevel gear 163 drives the first bevel gear 162, the first rotating shaft 161, and the fourth bevel gear 166. The rotation of the fourth bevel gear 166 drives the third bevel gear 165, the second rotating shaft 164, and the first gear 168 to rotate. The first gear 168 drives the intermediate gear 167 to rotate, which in turn drives the second gear 1611 and the worm gear 169 to rotate. The worm gear 169 drives the worm wheel 1610 and the second double-ended screw 155 to rotate. The second double-ended screw 155 drives the two first sliders 102 to move towards each other. The first sliders 102 drive the guide plate 153 to move. The guide plate 153 drives the lever 154 to move via a tension spring. The two levers 154 on both sides of the first adjusting plate 5 push the power battery to the second adjusting plate. The battery is positioned in the middle of plate 8 to maintain balance and facilitate subsequent battery positioning. Finally, two brackets 103 lift and clamp the battery, allowing the crane to move it to the battery compartment. A dual-axis motor 96 drives two third screws 97 to rotate, which in turn move the extension block 92, causing it to extend the mounting plate 93 out of the lifting plate 1. Then, the telescopic rod 94 lowers the pad 95, bringing it into contact with the ground, thus placing the device on the ground. The battery position can then be fine-tuned according to the battery compartment location. During adjustment, the first electric... The first screw 12 is rotated by the first motor 11, which in turn drives the first adjusting plate 5 to move longitudinally. The second motor 13 drives the second adjusting plate 8 to move laterally via the second screw 14, thereby accurately positioning the power battery. Then, the wire rope of the crane is released, and the movable end of the telescopic rod 94 is shortened. The telescopic rod 94 drives the hanging plate 1 to descend, placing the power battery above the power battery compartment. Then, the third motor 105 reverses, causing the bracket 103 to release the power battery and move it out of the power battery's range, thus accurately lowering the power battery into the power battery compartment. Using this device, repeated adjustments are unnecessary, which can greatly save installation time.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A power battery hoisting bracket device for electric passenger cars, comprising a hoisting plate, characterized in that, The bottom of the suspended platform is fixedly connected to a first slide rail, the inside of which a first connecting block is slidably connected. The bottom of the first connecting block is fixedly connected to a first adjusting plate, and the bottom of the first adjusting plate is fixedly connected to a second slide rail. The inside of the second slide rail is slidably connected to a second connecting block, and the bottom of the second connecting block is fixedly connected to a second adjusting plate. The second slide rail and the first slide rail are perpendicularly arranged. The platform also includes: A first adjustment mechanism is mounted on a hanging plate, and its output end is connected to a first adjustment plate via a transmission connection. The first adjustment mechanism is used to drive the first adjustment plate to move. The second adjustment mechanism is mounted on the first adjustment plate, and its output end is connected to the second adjustment plate via a transmission connection. The second adjustment mechanism is used to drive the second adjustment plate to move. A fixing mechanism is installed on the suspended platform, and the fixing mechanism fixes the suspended platform to the ground by abutting against the ground; A clamping mechanism is mounted on a second adjusting plate and is used to clamp the power battery.

2. The power battery hoisting bracket device for electric passenger cars according to claim 1, characterized in that, The first adjustment mechanism includes a first motor fixedly mounted on the hanging plate, the output shaft of the first motor being fixedly connected to a first screw, and the first screw being threadedly connected to the first adjustment plate.

3. The power battery hoisting bracket device for electric passenger cars according to claim 1, characterized in that, The second adjustment mechanism includes a second motor fixedly mounted on the first adjustment plate, the output shaft of the second motor being fixedly connected to a second screw, and the second screw being threadedly connected to the second adjustment plate.

4. The power battery hoisting bracket device for electric passenger cars according to claim 1, characterized in that, The fixing mechanism includes two third slide rails fixedly connected to the top of the suspended platform. Each of the two third slide rails has an extension block slidably connected inside. Each of the two extension blocks has a mounting plate fixedly connected to one of its opposite ends. A telescopic rod is fixedly connected to the mounting plate. A pad is fixedly connected to the movable end of the telescopic rod near the ground. A dual-axis motor is fixedly installed on the suspended platform. The dual-axis motor is located between the two third slide rails. Each of the two output shafts of the dual-axis motor has a third screw fixedly connected to it. The two third screws are threadedly connected to the two extension blocks respectively.

5. The power battery hoisting bracket device for electric passenger cars according to claim 1, characterized in that, The clamping mechanism includes a first cavity formed in a second adjusting plate. Two first sliders are slidably connected inside the first cavity. Two brackets are fixedly connected to the opposite sides of the two first sliders. The output ends of the brackets extend out of the second adjusting plate. The brackets have a U-shaped cross-section and a beveled surface at one bottom end. A first double-ended screw is rotatably connected inside the first cavity. The first double-ended screw is threadedly connected to both first sliders. A third motor is fixedly installed on the side of the second adjusting plate. One end of the first double-ended screw that passes through the second adjusting plate is fixedly connected to the output shaft of the third motor.

6. The power battery hoisting bracket device for electric passenger cars according to claim 5, characterized in that, Also includes: A side centering mechanism is installed on the first adjustment plate and is used to drive the power battery to move to the center of the second adjustment plate. A transmission mechanism is connected between the side centering mechanism and the first double-ended screw, and the first double-ended screw drives the side centering mechanism to move through the transmission mechanism.

7. The power battery hoisting bracket device for electric buses according to claim 6, characterized in that, The side centering mechanism includes a second cavity formed inside the first adjusting plate. Two second sliders are slidably connected inside the second cavity. Two guide plates are fixedly connected to the opposite sides of the two second sliders. A lever is sleeved on one end of the guide plate. The output end of the lever extends out of the first adjusting plate, and the lever has an L-shaped cross-section. A tension spring is connected between the guide plate and the lever. A second double-ended screw is rotatably connected inside the second cavity. The second double-ended screw is threadedly connected to the two second sliders. The transmission mechanism is connected between the first double-ended screw and the second double-ended screw. The second slider and the first slider are arranged perpendicularly.

8. The power battery mounting bracket device for electric buses according to claim 7, characterized in that, The transmission mechanism includes a first rotating shaft rotatably connected to a second adjusting plate. A first bevel gear is fixedly connected to one end of the first rotating shaft extending into a first cavity. A second bevel gear is fixedly connected to a first double-ended screw, and the second bevel gear meshes with the first bevel gear. A second rotating shaft is rotatably connected to the second adjusting plate. A third bevel gear is fixedly connected to one end of the second rotating shaft. A fourth bevel gear is fixedly connected to one end of the first rotating shaft extending out of the second adjusting plate, and the third bevel gear meshes with the fourth bevel gear. An intermediate gear is rotatably connected to the first adjusting plate. A first gear is fixedly connected to one end of the second rotating shaft, and the first gear meshes with the intermediate gear. A worm gear is rotatably connected inside the second cavity. A worm wheel is fixedly connected to the second double-ended screw, and the worm wheel meshes with the worm. A second gear is fixedly connected to the worm, and the second gear meshes with the intermediate gear. A through slot is provided on the first adjusting plate for the movement of the second gear. The thickness of the intermediate gear is greater than the thickness of the first gear.

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