Bottom protection device for frame of electric vehicle

Abstract

The utility model discloses an electric vehicle frame bottom protection device which comprises a protection bottom plate, bearing plates, an adjustable connecting mechanism and a blocking buffering mechanism, the two ends of the protection bottom plate are bent upwards, the bearing plates are arranged on the two sides of the protection bottom plate, the adjustable connecting mechanism is arranged on the upper portions of the bearing plates, and the blocking buffering mechanism is arranged on the upper portions of the bearing plates. The protection bottom plate is connected to the two sides of the bottom of the frame, the blocking buffering mechanisms are arranged at the bent positions of the two ends of the protection bottom plate and make flexible contact with the bottom of the frame, and a buffering space is reserved. The utility model belongs to the technical field of electric vehicles, and particularly relates to a vehicle frame bottom protection device for a two-wheeled electric vehicle, which is fixedly arranged at the bottom of a vehicle frame, flexibly limits and supports a bottom battery, covers the bottom of the vehicle frame by utilizing a protection bottom plate, can adjust the downward supporting force of the protection bottom plate, buffers the impact force borne by the protection bottom plate, and keeps a certain buffer space. And the protection effect on the bottom of the frame is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicles, and in particular relates to a protective device for the bottom of an electric vehicle frame. Background Art

[0002] In recent years, with the development and construction of cities, roads have been continuously built. Electric vehicles are suitable for transportation in some cities and are well received by people. They choose two-wheeled electric vehicles for convenient travel. As electric vehicles become more and more popular, safety is particularly important.

[0003] Existing electric vehicles use welded steel plates to protect the bottom of the frame to protect the battery and prevent it from being bumped. However, the steel plate is in rigid contact with the battery and cannot better protect the battery and reduce battery vibration. In the event of a collision, the protection effect on the battery is also weak. Utility Model Content

[0004] The technical problem to be solved by the utility model is to protect the bottom of the frame and the battery installed at the bottom of the frame, increase the buffer of the bottom of the frame, and improve the impact resistance of the bottom of the frame.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a protective device for the bottom of an electric vehicle frame, comprising a protective bottom plate, the two ends of the protective bottom plate are bent upward, and also comprising a bearing plate, an adjustable connecting mechanism and a blocking and buffering mechanism. The bearing plates are arranged on both sides of the protective bottom plate, and the bearing plates are arranged symmetrically on the left and right. The adjustable connecting mechanism is arranged on the upper part of the bearing plate, and is used to connect the protective bottom plate to the two sides of the bottom of the frame. The blocking and buffering mechanism is arranged at the bending parts at both ends of the protective bottom plate, flexibly contacts the bottom of the frame and leaves a buffer space.

[0006] Furthermore, the adjustable connecting mechanism includes a connecting rod, a sleeve, a connecting plate and a clamp, the connecting rod is fixedly connected to the upper part of the bearing plate, the sleeve cover is arranged on the outer side wall of the connecting rod, the upper end of the connecting rod is fixedly connected with a rubber plug, the rubber plug is slidably arranged in the sleeve and is used to compress the air inside the sleeve, the connecting plate is arranged on the upper part of the sleeve, and the clamp is fixedly connected to the inner side wall of the connecting plate.

[0007] Furthermore, the outer wall of the connecting rod is threadedly connected with a lower adjusting nut, the outer wall of the sleeve is threadedly connected with an upper adjusting nut, a spring is wound around the outer wall of the sleeve and the connecting rod, and the spring is located between the upper adjusting nut and the lower adjusting nut.

[0008] Furthermore, the blocking and buffering mechanism includes an airbag column and a limit strip, the limit strip is arranged in the middle of the inner side wall of the bent protective bottom plate, the limit strips are symmetrically distributed, and the symmetrical limit strips form limit grooves for limiting the bottom corners of the frame, the airbag column passes through the hypotenuse of the protective bottom plate and is fixedly connected to the protective bottom plate, a rubber valve is fixedly connected in the middle of the airbag column, and the airbag columns are symmetrically distributed and evenly spaced around the limit strip.

[0009] Furthermore, the bottom wall of the protective bottom plate is rotatably connected to support rollers, and the support rollers penetrate the bottom wall of the protective bottom plate and are evenly spaced at upper and lower sides of the bottom wall of the protective bottom plate.

[0010] After adopting the above structure, the beneficial effects of the utility model are as follows: for the protection of the bottom of the frame of the two-wheeled electric vehicle, and at the same time, the flexibly limited support of the bottom battery, the device is fixedly installed on both sides of the bottom of the frame using an adjustable connecting mechanism, and the bottom of the frame is covered with a protective bottom plate. By adjusting the spring supporting force between the sleeve and the connecting rod, the downward supporting force of the protective bottom plate is adjusted to buffer the impact force on the protective bottom plate. At the same time, the blocking buffer mechanism is used to limit and flexibly support the bottom sides of the battery or steel plate frame, maintain a certain buffer space, and increase the protection effect of the bottom of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0012] Figure 1 This is a schematic diagram of the overall structure of the protective device for the bottom of an electric vehicle frame proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the support roller structure for the bottom protection device of the electric vehicle frame proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the bottom protection device for an electric vehicle frame proposed by the utility model;

[0015] Figure 4 for Figure 3 A magnified view of part A.

[0016] In the attached drawings: 1. Protective bottom plate, 2. Load-bearing plate, 3. Adjustable connecting mechanism, 4. Blocking and buffering mechanism, 5. Connecting rod, 6. Sleeve, 7. Connecting plate, 8. Hoop, 9. Rubber plug, 10. Lower adjusting nut, 11. Upper adjusting nut, 12. Spring, 13. Airbag column, 14. Limiting strip, 15. Limiting groove, 16. Rubber valve, 17. Support roller. DETAILED DESCRIPTION

[0017] like Figure 1 and Figure 2 As shown, a protective device for the bottom of an electric vehicle frame comprises a protective bottom plate 1, both ends of which are bent upward, a bearing plate 2, an adjustable connecting mechanism 3 and a blocking and buffering mechanism 4. The bearing plates 2 are arranged on both sides of the protective bottom plate 1, and the bearing plates 2 are arranged symmetrically. The adjustable connecting mechanism 3 is arranged on the upper part of the bearing plate 2, and is used to connect the protective bottom plate 1 to both sides of the bottom of the frame. The blocking and buffering mechanism 4 is arranged at the bending parts of both ends of the protective bottom plate 1, flexibly contacts the bottom of the frame and leaves a buffer space.

[0018] like Figure 1 , Figure 3 and Figure 4 As shown, in order to achieve the protection of the bottom of the frame, the adjustable connection mechanism 3 includes a connecting rod 5, a sleeve 6, a connecting plate 7 and a clamp 8. The connecting rod 5 is fixedly connected to the upper part of the load-bearing plate 2, and the sleeve 6 is covered on the outer side wall of the connecting rod 5. The upper end of the connecting rod 5 is fixedly connected with a rubber plug 9, and the rubber plug 9 is slidably arranged in the sleeve 6 to compress the air inside the sleeve 6. The connecting plate 7 is arranged on the upper part of the sleeve 6, and the clamp 8 is fixedly connected to the inner side wall of the connecting plate 7. When the clamp 8 is fixedly connected to both sides of the bottom of the frame, the inner upper wall of the protective bottom plate 1 is close to the bottom of the frame by the connecting rod 5 extending to the maximum extent at the bottom of the sleeve 6. At the same time, a certain space is left between the protective bottom plate 1 and the bottom of the frame, so that the connecting rod 5 can drive the protective bottom plate 1 to move upward;

[0019] In order to increase the impact resistance of the device, the outer wall of the connecting rod 5 is threadedly connected with a lower adjusting nut 10, and the outer wall of the sleeve 6 is threadedly connected with an upper adjusting nut 11. A spring 12 is wound around the outer wall of the sleeve 6 and the connecting rod 5. The spring 12 is located between the upper adjusting nut 11 and the lower adjusting nut 10. By rotating the upper adjusting nut 11 or the lower adjusting nut 10, the supporting force of the spring 12 is adjusted, the resistance of the spring 12 is increased or decreased, and the impact resistance of the protective base plate 1 is adjusted.

[0020] like Figure 3 and Figure 4As shown, in order to fill the gap between the protective bottom plate 1 and the bottom of the frame, increase the flexible contact between the two, and limit the corners of the steel plate or battery at the bottom of the frame to prevent the protective bottom plate 1 from tilting after collision or impact, the blocking buffer mechanism 4 includes an airbag column 13 and a limiting strip 14. The limiting strip 14 is arranged in the middle of the bent inner wall of the protective bottom plate 1. The limiting strips 14 are symmetrically distributed. The symmetrical limiting strips 14 form limiting grooves 15 for limiting the corners of the bottom of the frame. The airbag column 13 passes through the oblique edge of the protective bottom plate 1 and is fixedly connected to the protective bottom plate 1, a rubber valve 16 is fixedly connected to the middle of the airbag column 13, and the rubber valve 16 balances the pressure of the airbag column 13 between the inclined side walls of the protective bottom plate 1, thereby increasing the cushioning property of the airbag column 13. The airbag columns 13 are evenly spaced and symmetrically distributed with the limiting strip 14 as the center. The limiting grooves 15 formed by the symmetrical limiting strips 14 fix and limit the right-angle position at the bottom corner of the steel plate or the battery. At the same time, the airbag column 13 supports the side walls and bottom walls of the right-angled sides of the battery or the steel plate, thereby increasing the cushioning capacity between the protective bottom plate 1 and the steel plate or the battery.

[0021] In order to avoid hard contact between the bottom wall of the protective base plate 1 and the bottom wall of the protective base plate 1 when friction occurs, the bottom wall of the protective base plate 1 is rotatably connected to a support roller 17. The support roller 17 passes through the bottom wall of the protective base plate 1 and is evenly separated at the upper and lower sides of the bottom wall of the protective base plate 1. After friction occurs, the support roller 17 increases the supporting strength between the protective base plate 1 and the steel plate or battery. At the same time, the support roller 17 rotates to offset the impact force generated by the collision.

[0022] When in use, the operator fixes both sides of the device to the bottom of the frame through the clamp 8. In the initial state, the connecting rod 5 is extended to the maximum extent at the bottom of the sleeve 6, so that the inner upper wall of the protective bottom plate 1 is close to the bottom of the frame. At the same time, a certain space is left between the protective bottom plate 1 and the bottom of the frame, so that the connecting rod 5 can drive the protective bottom plate 1 to move upward, and the upper adjusting nut 11 or the lower adjusting nut 10 is turned to adjust the supporting force of the spring 12, increase or decrease the resistance of the spring 12, and adjust the impact resistance of the protective bottom plate 1;

[0023] The limiting groove 15 formed by the symmetrical limiting strips 14 fixes and limits the right-angle position of the bottom corner of the steel plate or battery. At the same time, the airbag column 13 supports the side walls and bottom walls of the right-angled edges of the battery or steel plate. The rubber valve 16 balances the pressure of the airbag column 13 between the inclined side walls of the protective bottom plate 1, increases the buffering capacity between the protective bottom plate 1 and the steel plate or battery, and supports the rotation of the roller 17 to offset the impact force generated by the collision at the bottom of the protective bottom plate 1.

[0024] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the scope of protection of the utility model.

Claims

1. A protective device for the bottom of an electric vehicle frame, comprising a protective bottom plate, both ends of which are bent upwards, characterized in that: It also includes a bearing plate, an adjustable connecting mechanism and a blocking and buffering mechanism. The bearing plate is arranged on both sides of the protective bottom plate, and the bearing plate is arranged symmetrically on the left and right. The adjustable connecting mechanism is arranged on the upper part of the bearing plate and is used to connect the protective bottom plate to the two sides of the bottom of the frame. The blocking and buffering mechanism is arranged at the bending parts of the two ends of the protective bottom plate, flexibly contacts the bottom of the frame and leaves a buffer space.

2. The bottom protection device for an electric vehicle frame according to claim 1 is characterized in that: The adjustable connecting mechanism includes a connecting rod, a sleeve, a connecting plate and a clamp. The connecting rod is fixedly connected to the upper part of the bearing plate, the sleeve cover is arranged on the outer side wall of the connecting rod, the upper end of the connecting rod is fixedly connected with a rubber plug, the rubber plug is slidably arranged in the sleeve and is used to compress the air inside the sleeve, the connecting plate is arranged on the upper part of the sleeve, and the clamp is fixedly connected to the inner side wall of the connecting plate.

3. The bottom protection device for an electric vehicle frame according to claim 2 is characterized in that: The outer wall of the connecting rod is threadedly connected with a lower adjusting nut, the outer wall of the sleeve is threadedly connected with an upper adjusting nut, a spring is wound around the outer wall of the sleeve and the connecting rod, and the spring is located between the upper adjusting nut and the lower adjusting nut.

4. The bottom protection device for an electric vehicle frame according to claim 1, characterized in that: The blocking and buffering mechanism includes an airbag column and a limit strip. The limit strip is arranged in the middle of the inner side wall of the bent protective bottom plate. The limit strips are symmetrically distributed. The symmetrical limit strips form limit grooves for limiting the bottom corners of the frame. The airbag column passes through the hypotenuse of the protective bottom plate and is fixedly connected to the protective bottom plate. A rubber valve is fixedly connected to the middle of the airbag column. The airbag columns are symmetrically distributed and evenly spaced around the limit strip.

5. The bottom protection device for an electric vehicle frame according to claim 1, characterized in that: The bottom wall of the protective bottom plate is rotatably connected with supporting rollers, and the supporting rollers penetrate the bottom wall of the protective bottom plate and are evenly divided at the upper and lower sides of the bottom wall of the protective bottom plate.

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