Power switching type dual-drive device of four-wheel electric vehicle

Abstract

The utility model relates to the technical field of four-wheel electric vehicles, in particular to a power switching type dual-drive device of a four-wheel electric vehicle, which comprises a shell, a power switching device and a power switching device. The driving mechanism comprises a rotating roller, and the rotating roller is arranged on the surface of the shell; and the opening and closing mechanism comprises a second compression spring, and the second compression spring is arranged in the shell. The first gear is movably connected with the second gear, the second gear is movably connected with the fourth gear, the bearing is arranged on the surface of the fourth gear, the fifth gear is arranged on the surface of the bearing, the second rotating shaft is slidably connected with the speed cutting piece, the speed cutting piece is movably connected with the shifting fork, and the shifting fork is fixedly connected with the shifting rod. When the shifting rod is connected with the first compression spring in a sleeved mode and the shifting rod is shifted to drive the speed switching part to be clamped into the bearing connected with the fourth gear and the bearing connected with the fifth gear respectively, the generated speeds are different, the running speeds of the four-wheel electric vehicle are different, and therefore power switching of the four-wheel electric vehicle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of four-wheel electric vehicles, in particular to a power switching dual drive device for a four-wheel electric vehicle. Background Art

[0002] Four-wheeled electric vehicles are four-wheeled vehicles powered by electricity. Four-wheeled electric vehicles use batteries as their power source. The batteries mainly include lead-acid batteries and lithium batteries.

[0003] Four-wheeled electric scooters are mainly used by the elderly and disabled internationally. They are simple to operate, slow in speed, safe and stable, and their performance is much superior to electric tricycles and four-wheeled motor vehicles. Four-wheeled electric vehicles are mainly composed of four major parts: a controller, a drive device, a battery, a charger, and a body. However, the drive device of existing four-wheeled electric vehicles is not convenient for power switching during driving, and the speed cannot be switched quickly, resulting in a poor user experience. Utility Model Content

[0004] The purpose of the present invention is to provide a power-switching dual drive device for a four-wheeled electric vehicle to solve the problems in the above-mentioned background technology that the drive device of the existing four-wheeled electric vehicle is inconvenient to switch power during driving, cannot switch speed quickly, and has a poor user experience.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a power-switching dual-drive device for a four-wheel electric vehicle, comprising:

[0006] The housing comprises an outer shell, a surface of which is movably connected to a shell cover;

[0007] The driving mechanism includes a roller, wherein the roller is provided on the surface of the shell, one end of the roller is movably connected to the motor, the other end of the roller is fixedly connected to the first gear, the surface of the first gear is movably connected to the second gear, the surface of the second gear is fixedly connected to the first rotating shaft, the surface of the first rotating shaft is fixedly connected to the third gear, the surface of the second gear is movably connected to the fourth gear, the surface of the fourth gear is provided with a bearing, the surface of the bearing is provided with the second rotating shaft, the surface of the bearing is provided with the fifth gear, the surface of the bearing is provided with a speed cutting member, the surface of the speed cutting member is movably connected to a shift fork, the surface of the shift fork is fixedly connected to a shift rod, the surface of the shift rod is sleeved with a first compression spring, the surface of the second rotating shaft is fixedly connected to the sixth gear, the surface of the sixth gear is movably connected to the seventh gear, and the surface of the seventh gear is fixedly connected to the third rotating shaft;

[0008] The opening and closing mechanism comprises a second compression spring arranged in the interior of the shell, one end of the second compression spring is fixedly connected with a connecting block, one end of the connecting block away from the second compression spring is fixedly connected with an inserting block, the surface of the inserting block is movably connected with a fixed block, one end of the connecting block away from the inserting block is fixedly connected with a sliding rod, and the surface of the sliding rod is fixedly connected with a pushing block.

[0009] Preferably, the first gear is rotatably connected with the shell through a rotating roller and a motor, the second gear is rotatably connected with the shell through the first gear, and the first rotating shaft and the fourth gear are rotatably connected with the shell through the second gear.

[0010] Preferably, the third gear is rotatably connected with the first rotating shaft, the two groups of bearings are arranged on the surfaces of the fourth gear and the fifth gear respectively, and the outer surfaces of the bearings are fixedly connected with the fourth gear and the fifth gear.

[0011] Preferably, the inner surfaces of the bearings are fixedly connected with the second rotating shaft, the surfaces of the bearings are provided with clamping grooves, and the cutting speed piece can be clamped into the bearings.

[0012] Preferably, the second gear and the fifth gear are of the same size, the third gear and the fourth gear are of the same size, the two ends of the first compression spring are fixedly connected with the pushing rod and the shell respectively, and the sixth gear is rotatably connected with the shell through the second rotating shaft.

[0013] Preferably, the seventh gear and the third rotating shaft are rotatably connected with the shell through the sixth gear, the third rotating shaft penetrates through the shell, the two ends of the second compression spring are fixedly connected with the shell and the connecting block respectively, and the connecting block and the inserting block are slidably connected with the shell through the second compression spring.

[0014] Preferably, the cross section of the inserting block is a right-angled triangle, the inclined surface of the inserting block faces the shell cover, the surface of the fixed block is provided with a square through groove, the fixed block is fixedly connected with the shell cover, and the sliding rod and the pushing block are slidably connected with the shell.

[0015] Compared with the prior art, the open and close mechanism has the advantages that:

[0016] 1. Through the movable connection between the first gear and the second gear, the movable connection between the second gear and the fourth gear, a bearing provided on the surface of the fourth gear, a fifth gear provided on the surface of the bearing, a sliding connection between the second rotating shaft and the speed-cutting member, a movable connection between the speed-cutting member and the shift fork, a fixed connection between the shift fork and the shift lever, a sleeve connection between the shift lever and the first compression spring, a movable connection between the sixth gear and the seventh gear, and a fixed connection between the seventh gear and the third rotating shaft, when the shift lever is moved to drive the speed-cutting member to respectively engage in the bearing connected to the fourth gear and the bearing connected to the fifth gear, the speeds generated are different, so that the driving speeds of the four-wheeled electric vehicle are also different, thereby realizing power switching of the four-wheeled electric vehicle;

[0017] 2. Through the fixed connection between the second compression spring and the connecting block, the fixed connection between the connecting block and the inserting block, the movable connection between the inserting block and the fixed block, the fixed connection between the fixed block and the shell cover, the fixed connection between the connecting block and the sliding rod, and the fixed connection between the sliding rod and the shifting block, this structure increases the closing method of the outer shell and the shell cover. The outer shell and the shell cover in the prior art are closed and fixed by bolts. After the bolts are damaged, this structure can temporarily replace the bolts for closing and fixing. When the bolts are intact, this structure can further enhance the closing effect of the outer shell and the shell cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a frontal perspective schematic diagram of the structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model from a front perspective;

[0020] Figure 3 This is a schematic front view of the structure of the driving device of the utility model;

[0021] Figure 4 This is a partial schematic diagram of the structure of the switching mechanism of the present invention;

[0022] Figure 5 This is a partial schematic diagram of the structure of the bearing and the cutting element of the utility model;

[0023] Figure 6 It is a schematic three-dimensional partial cross-sectional view of the structure of the opening and closing mechanism of the utility model.

[0024] In the figure: 1. outer shell; 11. shell cover; 2. roller; 21. motor; 22. first gear; 23. second gear; 24. first rotating shaft; 25. third gear; 26. fourth gear; 27. bearing; 28. second rotating shaft; 29. ​​fifth gear; 210. speed cutting member; 211. shift fork; 212. shift lever; 213. first compression spring; 214. sixth gear; 215. seventh gear; 216. third rotating shaft; 3. second compression spring; 31. connecting block; 32. insert block; 33. fixing block; 34. slide rod; 35. shift block. DETAILED DESCRIPTION

[0025] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 , an embodiment provided by the utility model:

[0027] A power-switching dual-drive device for a four-wheel electric vehicle, comprising:

[0028] The housing comprises an outer shell 1, a shell cover 11 being movably connected to the surface of the outer shell 1, and the outer shell 1 and the shell cover 11 are used to wrap the drive device to play a protective role;

[0029] The driving mechanism includes a roller 2, which is arranged on the surface of the housing 1. One end of the roller 2 is movably connected to a motor 21. The roller 2 and the motor 21 are used to drive the first gear 22 to rotate. The other end of the roller 2 is fixedly connected to a first gear 22. The first gear 22 is used to drive the second gear 23 to rotate. The surface of the first gear 22 is movably connected to a second gear 23. The second gear 23 is used to drive the fourth gear 26 to rotate. The surface of the second gear 23 is fixedly connected to a first rotating shaft 24. The first rotating shaft 24 is used to support the second gear 23 and the third gear 25 without affecting the second gear 23 and the third gear 25. The surface of the first rotating shaft 24 is fixedly connected to the third gear 25, and the third gear 25 is used to drive the fifth gear 29 to rotate. The surface of the second gear 23 is movably connected to the fourth gear 26. The surface of the fourth gear 26 is provided with a bearing 27. The bearing 27 allows the fourth gear 26 and the fifth gear 29 to idly rotate on the surface of the second rotating shaft 28. The surface of the bearing 27 is provided with a second rotating shaft 28. The second rotating shaft 28 is used to support the fourth gear 26 and the fifth gear 29 without affecting the rotation of the fourth gear 26 and the fifth gear 29. The surface of the bearing 27 is provided with a fifth gear 29. The fourth gear 26 and the fifth gear 29 The wheel 29 is used to drive the sixth gear 214 to rotate. The surface of the second rotating shaft 28 is slidably connected with a speed cutting member 210. The speed cutting member 210 is used to clamp the bearing 27, so that the fourth gear 26 or the fifth gear 29 no longer idles and can drive the second rotating shaft 28 to rotate, thereby realizing the switching of the power speed. The surface of the speed cutting member 210 is movably connected with a shift fork 211. The surface of the shift fork 211 is fixedly connected with a shift rod 212. The shift fork 211 and the shift rod 212 are used to shift the speed cutting member 210 so that the speed cutting member 210 can clamp the bearing 27. The surface of the shift rod 212 is sleeved with a first compression spring 213. The spring 213 is used to reset the shift fork 211 and the shift rod 212. The surface of the second rotating shaft 28 is fixedly connected to a sixth gear 214, which is used to drive the seventh gear 215 to rotate. The surface of the sixth gear 214 is movably connected to the seventh gear 215, which is used to drive the third rotating shaft 216 to rotate. The surface of the seventh gear 215 is fixedly connected to the third rotating shaft 216. Both ends of the third rotating shaft 216 are connected to wheels for driving the wheels to rotate, thereby realizing the driving of the four-wheeled electric vehicle. The motor 21 is an existing product and is not a technical protection point of this application. No further explanation is made here.

[0030] The opening and closing mechanism includes a second compression spring 3, which is arranged inside the shell 1. The second compression spring 3 is used to push the insertion block 32 to reset, so that the insertion block 32 is inserted into the fixed block 33, thereby achieving the fixed closure of the shell cover 11. The end of the second compression spring 3 away from the shell 1 is fixedly connected to the connecting block 31. The connecting block 31 is used to connect the second compression spring 3 and the insertion block 32 and is also used to compress the second compression spring 3. The end of the connecting block 31 away from the second compression spring 3 is fixedly connected to the insertion block 32, and the surface of the insertion block 32 is movably connected to the fixed block 33. The insertion block 32 is inserted into the fixed block 33, thereby achieving the fixed closure of the shell cover 11. The end of the connecting block 31 away from the insertion block 32 is fixedly connected to the sliding rod 34, and the surface of the sliding rod 34 is fixedly connected to the shifting block 35. The sliding rod 34 and the shifting block 35 are used to shift the connecting block 31 and the insertion block 32, so that the insertion block 32 is separated from the fixed block 33, so that the shell cover 11 can be opened.

[0031] Furthermore, the roller 2 and the motor 21 are used to drive the first gear 22 to rotate, and the first gear 22 is rotatably connected to the outer shell 1 through the roller 2 and the motor 21. The first gear 22 is used to drive the second gear 23 to rotate, and the second gear 23 is rotatably connected to the outer shell 1 through the first gear 22. The second gear 23 is used to drive the fourth gear 26 to rotate. The first shaft 24 and the fourth gear 26 are both rotatably connected to the outer shell 1 through the second gear 23. The first shaft 24 is used to support the second gear 23 and the third gear 25 without affecting the rotation of the second gear 23 and the third gear 25.

[0032] Furthermore, the third gear 25 is rotatably connected to the housing 1 through the first rotating shaft 24. The third gear 25 is used to drive the fifth gear 29 to rotate. Two sets of bearings 27 are respectively arranged on the surfaces of the fourth gear 26 and the fifth gear 29. The outer surfaces of the bearings 27 are fixedly connected to the fourth gear 26 and the fifth gear 29.

[0033] Furthermore, the inner surface of the bearing 27 is fixedly connected to the second rotating shaft 28, and a slot is provided on the surface of the bearing 27, into which the speed cutting member 210 can be inserted. The bearing 27 allows the fourth gear 26 and the fifth gear 29 to idle on the surface of the second rotating shaft 28.

[0034] Furthermore, the second rotating shaft 28 is used to support the fourth gear 26 and the fifth gear 29 without affecting the rotation of the fourth gear 26 and the fifth gear 29. The second gear 23 and the fifth gear 29 are of the same size, and the third gear 25 and the fourth gear 26 are of the same size. The fourth gear 26 and the fifth gear 29 are used to drive the sixth gear 214 to rotate. The speed cutting member 210 is used to clamp the bearing 27, so that the fourth gear 26 or the fifth gear 29 no longer idles and can drive the second rotating shaft 28 to rotate, thereby realizing the switching of power speed. The shift fork 211 and the shift rod 212 are used to shift the speed cutting member 210 so that the speed cutting member 210 can clamp the bearing 27. The two ends of the first compression spring 213 are fixedly connected to the shift rod 212 and the housing 1 respectively. The first compression spring 213 is used to reset the shift fork 211 and the shift rod 212. The sixth gear 214 is rotatably connected to the housing 1 through the second rotating shaft 28, and the sixth gear 214 is used to drive the seventh gear 215 to rotate.

[0035] Furthermore, the seventh gear 215 and the third rotating shaft 216 are rotationally connected to the outer shell 1 through the sixth gear 214. The seventh gear 215 is used to drive the third rotating shaft 216 to rotate. The third rotating shaft 216 passes through the outer shell 1. Both ends of the third rotating shaft 216 are connected to wheels for driving the wheels to rotate, thereby realizing the driving of the four-wheel electric vehicle. The two ends of the second compression spring 3 are fixedly connected to the outer shell 1 and the connecting block 31 respectively. The second compression spring 3 is used to push the plug block 32 to reset, so that the plug block 32 is inserted into the fixed block 33, thereby realizing the fixed closure of the shell cover 11. The connecting block 31 and the plug block 32 are slidingly connected to the outer shell 1 through the second compression spring 3. The connecting block 31 is used to connect the second compression spring 3 and the plug block 32 and is also used to compress the second compression spring 3.

[0036] Furthermore, the cross-section of the insert block 32 is a right triangle, the inclined surface of the insert block 32 faces the shell cover 11, and the insert block 32 is inserted into the fixed block 33, thereby achieving the fixed closure of the shell cover 11. A square through groove is provided on the surface of the fixed block 33, and the fixed block 33 and the shell cover 11 are fixedly connected. The slide rod 34 and the shift block 35 are slidably connected to the outer shell 1, and the slide rod 34 and the shift block 35 are used to shift the connecting block 31 and the insert block 32 so that the insert block 32 is separated from the fixed block 33, thereby allowing the shell cover 11 to be opened.

[0037] Working principle: The operation of the motor 21 can provide power for the four-wheel electric vehicle. When the four-wheel electric vehicle needs to switch the power speed, the toggle lever 212 drives the speed cutting member 210 to move, so that the speed cutting member 210 is stuck in the bearing 27 connected to the fourth gear 26 or the bearing 27 connected to the fifth gear 29. The speeds generated in these two cases are different, which makes the driving speed of the four-wheel electric vehicle different, thereby realizing the power switching of the four-wheel electric vehicle.

[0038] The shell cover 11 is buckled toward the shell 1 so that the fixing block 33 is inserted into the shell 1. The fixing block 33 will push the insertion block 32 to move, so that the connecting block 31 squeezes the second compression spring 3. When the through groove on the surface of the insertion block 32 and the fixing block 33 is in the same plane, the second compression spring 3 will rebound and push the insertion block 32 to be inserted into the fixing block 33, thereby achieving the fixed closure of the shell cover 11. The shell 1 and the shell cover 11 of the prior art are both closed and fixed by bolts. After the bolts are damaged, this method can temporarily replace the bolts for closed fixing. When the bolts are intact, this structure can further enhance the closing effect of the shell 1 and the shell cover 11. At the same time, unscrew the bolts, move the dial block 35 to make the insertion block 32 disengage from the fixing block 33, and then the shell cover 11 can be opened.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A power switching dual drive device for a four-wheel electric vehicle, characterized in that: include: The housing comprises an outer shell (1), wherein a shell cover (11) is movably connected to a surface of the outer shell (1); The driving mechanism comprises a roller (2), wherein the roller (2) is arranged on the surface of the housing (1), one end of the roller (2) is movably connected to a motor (21), the other end of the roller (2) is fixedly connected to a first gear (22), the surface of the first gear (22) is movably connected to a second gear (23), the surface of the second gear (23) is fixedly connected to a first rotating shaft (24), the surface of the first rotating shaft (24) is fixedly connected to a third gear (25), the surface of the second gear (23) is movably connected to a fourth gear (26), the surface of the fourth gear (26) is provided with a bearing (27), and the surface of the bearing (27) is provided with A second rotating shaft (28) is provided, a fifth gear (29) is provided on the surface of the bearing (27), a speed cutting member (210) is slidably connected to the surface of the second rotating shaft (28), a shift fork (211) is movably connected to the surface of the speed cutting member (210), a shift fork (211) is fixedly connected to the surface of the shift fork (211), a first compression spring (213) is sleeved on the surface of the shift fork (211), a sixth gear (214) is fixedly connected to the surface of the second rotating shaft (28), a seventh gear (215) is movably connected to the surface of the sixth gear (214), and a third rotating shaft (216) is fixedly connected to the surface of the seventh gear (215); The opening and closing mechanism comprises a second compression spring (3), wherein the second compression spring (3) is arranged inside the housing (1), wherein one end of the second compression spring (3) away from the housing (1) is fixedly connected to a connecting block (31), and one end of the connecting block (31) away from the second compression spring (3) is fixedly connected to an inserting block (32), and the surface of the inserting block (32) is movably connected to a fixed block (33), and one end of the connecting block (31) away from the inserting block (32) is fixedly connected to a sliding rod (34), and the surface of the sliding rod (34) is fixedly connected to a shifting block (35).

2. The power-switching dual-drive device for a four-wheel electric vehicle according to claim 1, characterized in that: The first gear (22) is rotationally connected to the housing (1) via the roller (2) and the motor (21); the second gear (23) is rotationally connected to the housing (1) via the first gear (22); and the first rotating shaft (24) and the fourth gear (26) are rotationally connected to the housing (1) via the second gear (23).

3. The power-switching dual-drive device for a four-wheel electric vehicle according to claim 1, characterized in that: The third gear (25) is rotatably connected to the housing (1) via the first rotating shaft (24), and the two sets of bearings (27) are respectively arranged on the surfaces of the fourth gear (26) and the fifth gear (29), and the outer surfaces of the bearings (27) are fixedly connected to the fourth gear (26) and the fifth gear (29).

4. The power-switching dual-drive device for a four-wheel electric vehicle according to claim 1, characterized in that: The inner surface of the bearing (27) is fixedly connected to the second rotating shaft (28), and a slot is provided on the surface of the bearing (27), so that the speed cutting member (210) can be inserted into the bearing (27).

5. The power-switching dual-drive device for a four-wheel electric vehicle according to claim 1, characterized in that: The second gear (23) and the fifth gear (29) are of the same size, the third gear (25) and the fourth gear (26) are of the same size, the two ends of the first compression spring (213) are fixedly connected to the shifting rod (212) and the housing (1), respectively, and the sixth gear (214) is rotatably connected to the housing (1) via the second rotating shaft (28).

6. The power-switching dual-drive device for a four-wheel electric vehicle according to claim 1, characterized in that: The seventh gear (215) and the third rotating shaft (216) are rotationally connected to the housing (1) via the sixth gear (214); the third rotating shaft (216) passes through the housing (1); the two ends of the second compression spring (3) are fixedly connected to the housing (1) and the connecting block (31), respectively; the connecting block (31) and the insert block (32) are slidably connected to the housing (1) via the second compression spring (3).

7. The power-switching dual-drive device for a four-wheel electric vehicle according to claim 1, characterized in that: The cross section of the insert block (32) is a right triangle, the inclined surface of the insert block (32) faces the shell cover (11), a square through groove is provided on the surface of the fixed block (33), the fixed block (33) and the shell cover (11) are fixedly connected, and the slide rod (34) and the shift block (35) are slidably connected to the shell (1).

Images