Vehicle and side parking assist device thereof

Abstract

The present invention discloses a vehicle and a side parking assist device thereof, the side parking assist device comprising a base, and also comprising a worm, a worm wheel, a support roller and a ground contact roller rotatably connected to the base; wherein the worm is meshed with the worm wheel; the support roller is connected to the upper part of the base and contacts the wheel, and the axis extends in the transverse direction; the ground contact roller is connected to the lower part of the base and contacts the ground, and the axis extends in the longitudinal direction; at least one of the support rollers is fixedly sleeved on the worm, and at least one of the ground contact rollers is fixedly connected to the worm wheel. The side parking assist device has a simple overall structure, is light and portable; and is driven by the vehicle's own wheels, so there is no need to set up additional drive components, which is conducive to the simplification of the overall structure of the side parking assist device and is more convenient to use; and can assist the vehicle to park in a parking space whose length is only slightly greater than the length of the vehicle, realizing extremely small spacing parking.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle assisted parking, and in particular to a vehicle and a side parking assist device thereof. Background Art

[0002] When parking a car sideways, it is difficult and time-consuming for novice drivers to operate, and collisions with other adjacent cars often occur. For experienced drivers, it is also difficult to park the car in a parking space that is slightly longer than the length of the car.

[0003] In the prior art, in order to facilitate parallel parking, a variety of parallel parking assist devices have been developed. A typical parallel parking assist device is specifically introduced below. The parallel parking assist device includes a support base supporting the chassis of the automobile, an electric lifting device, a walking device and a driving motor.

[0004] When using the side parking assist device, first drive the front of the vehicle into the parking space (at this time the rear of the vehicle is outside the parking space); then, stop the vehicle and control the electric lifting device to lift the rear of the vehicle upward until the rear wheels of the vehicle are 3-5 cm off the ground; then, start the walking device, at this time, the rear of the vehicle moves in a circle around the center of the front axle of the vehicle under the action of the drive motor until the rear of the vehicle completely enters the parking space; finally, lower the electric lifting device to let the rear of the vehicle fall back to the ground to complete side parking.

[0005] This side parking assist device has the following shortcomings:

[0006] The overall structure is large and bulky, which is not conducive to the lightweight design requirements of the vehicle;

[0007] Electric drive requires the installation of batteries, which need to be charged regularly. If the device is not used for a long time, the battery will lose power and the device will be unusable, which will cause a lot of inconvenience to the user.

[0008] It can only assist the vehicle to park in a parking space that can provide a large enough turning space for the rear of the vehicle, but it still cannot assist the vehicle to park in a parking space that is only slightly larger than the length of the vehicle.

[0009] The above-mentioned deficiencies are not limited to the above-mentioned one type of side parking assistance device, but are commonly found in various types of existing side parking assistance devices.

[0010] In view of this, how to develop a side parking assist device that can avoid the above-mentioned shortcomings is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0011] In order to solve the above technical problems, the present invention provides a side parking assist device, which includes a base, and also includes a worm, a worm wheel, a support roller and a ground contact roller rotatably connected to the base; wherein the worm is meshed with the worm wheel; the support roller is connected to the upper part of the base and contacts with the wheel, and the axis extends in the transverse direction; the ground contact roller is connected to the lower part of the base and contacts with the ground, and the axis extends in the longitudinal direction; at least one of the support rollers is fixedly sleeved on the worm, and at least one of the ground contact rollers is fixedly connected to the worm wheel.

[0012] When the vehicle needs to be moved into a parallel parking space, the vehicle can be driven to the left rear side of the parallel parking space and made substantially parallel to the parking space; then, the vehicle is stopped and a parallel parking assist device is placed in front of each wheel. When placed, the axis of the supporting roller of the parallel parking assist device extends in the lateral direction of the vehicle and the axis of the ground contact roller extends in the longitudinal direction of the vehicle.

[0013] Then, the driver shifts the gear to the forward position and steps on the accelerator, so that the wheels move forward to above the base of the corresponding side parking assist device and contact with each supporting roller connected to the upper part of the base.

[0014] Afterwards, the driver continues to step on the accelerator, the wheel drives the supporting rollers in contact with it to rotate forward, the supporting rollers fixed on the worm drive the worm to rotate forward, the worm drives the worm wheel meshing with it to rotate, and the worm wheel drives the ground contact roller fixed to it to rotate, thereby causing the vehicle to move horizontally to the right into the side parking space.

[0015] When the vehicle needs to be moved out of the side parking space, the driver shifts the gear into reverse and steps on the accelerator, the wheels drive the supporting rollers in contact with them to rotate reversely, the supporting rollers fixed on the worm drive the worm to rotate reversely, the worm drives the worm wheel meshing with it to rotate, and the worm wheel drives the ground contact roller fixedly connected to it to rotate, thereby causing the vehicle to move horizontally to the left out of the side parking space.

[0016] Optionally, at least one of the support rollers is spaced apart from the support roller fixedly sleeved on the worm gear along the longitudinal direction; and at least one of the ground contact rollers is spaced apart from the ground contact roller fixedly connected to the worm gear along the longitudinal direction.

[0017] Optionally, the side parking assist device also includes a connecting shaft for connecting the support rollers other than the support roller fixedly sleeved on the worm; the connecting shaft and the worm are arranged at intervals in the longitudinal direction; the connecting shaft is rotatably connected to the base, and the corresponding support roller is fixedly sleeved on the connecting shaft; or, the connecting shaft is fixedly connected to the base, and the corresponding support roller is rotatably sleeved on the connecting shaft.

[0018] Optionally, the two support rollers are fixedly sleeved on the worm, wherein one support roller is located on one lateral side of the base, and the other support roller is located on the other lateral side of the base; the two support rollers are fixedly sleeved on the connecting shaft, wherein one support roller is located on one lateral side of the base, and the other support roller is located on the other lateral side of the base.

[0019] Optionally, a first through hole for the worm to pass through is formed on the upper portion of the base; the base also has a first accommodating groove for accommodating the worm wheel, the first accommodating groove is located below the first through hole, and the top of the first accommodating groove is connected to the first through hole.

[0020] Optionally, the base body is provided with a second accommodating groove for accommodating the ground contact roller.

[0021] Optionally, the side parking assist device also includes a ramp; the ramp is located on a longitudinal side of the base, the highest position of the ramp is connected to the base, and the lowest position of the ramp can contact the ground, so that the wheel climbs along the ramp to a position in contact with the support roller.

[0022] Optionally, when each of the ground contact rollers is in contact with the ground, the lowest position of the slope is tilted upward from the ground.

[0023] Optionally, the side parking assist device also includes a ratchet assembly, which includes a pawl and a ratchet; the pawl is rotatably connected to the base and can be rotated to a first position that does not interfere with the ratchet and a second position that interferes with the ratchet; the ratchet is fixedly mounted on the worm.

[0024] In addition, the present invention also provides a vehicle, wherein a plurality of wheels are arranged at the bottom of the vehicle, and each of the wheels is equipped with any of the above-mentioned side parking assist devices.

[0025] The side parking assist device provided by the present invention has the following technical effects:

[0026] a. The overall structure is simple, light and portable;

[0027] b. The vehicle's own wheels are used for driving, so there is no need to set up additional driving components, which is conducive to simplifying the overall structure of the side parking assist device. In addition, compared with electric drive and other methods, there is no need for charging and other operations, which is more convenient to use.

[0028] c. It can assist vehicles to park in parking spaces that are only slightly longer than the length of the vehicle, thus achieving parking with extremely small spacing.

[0029] It can be seen that the side parking assist device provided by the present invention avoids various deficiencies of the existing side parking assist devices mentioned in the background art.

[0030] The technical effects of the vehicle provided by the present invention are consistent with the technical effects of the above-mentioned side parking assist device, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic front view of a specific embodiment of the side parking assist device provided by the present invention when the wheel is in contact with each supporting roller;

[0032] Figure 2 It is a front view schematic diagram of a specific embodiment when the wheels are climbing up a slope;

[0033] Figure 3 It is a partial top view schematic diagram of a specific embodiment.

[0034] in, Figures 1 to 3 The reference numerals in the figures are described as follows:

[0035] 1 base body, 11 first accommodating groove, 12 second accommodating groove, 2 worm, 3 worm wheel, 4 supporting roller, 5 ground contact roller, 6 connecting shaft, 7 ramp. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] First of all, it should be noted that the transverse direction mentioned in the context refers to the width direction of the vehicle, and the longitudinal direction mentioned in the context refers to the length direction of the vehicle.

[0038] Please refer to Figures 1 to 3 , Figure 1 A schematic front view of a specific embodiment of the side parking assist device provided by the present invention when the wheel is in contact with each supporting roller 4; Figure 2 It is a front view schematic diagram of a specific embodiment when the wheels are climbing upward along the slope 7; Figure 3 It is a partial top view schematic diagram of a specific embodiment.

[0039] like Figure 1-Figure 3 As shown, the side parking assist device provided by the present invention includes a base 1, a worm 2 rotatably connected to the base 1, a worm wheel 3, a supporting roller 4 and a ground contact roller 5.

[0040] Specifically, the support roller 4 is connected to the upper part of the base 1. In addition, the axis extension direction of the support roller 4 is consistent with the axis extension direction of the wheel, that is, both extend in the transverse direction. Figure 1As shown, the wheel is located above the base 1, and the supporting roller 4 is in contact with the lower part of the wheel to support the wheel.

[0041] Furthermore, at least one supporting roller 4 is fixedly sleeved on the worm 2. It can be understood that when the supporting roller 4 is fixedly sleeved on the worm 2, the axis of the supporting roller 4 is substantially coincident with the axis of the worm 2, that is, the axis of the worm 2 also extends in the transverse direction, and the axis of the worm wheel 3 meshing with the worm 2 extends in the longitudinal direction.

[0042] Furthermore, at least one supporting roller 4 is arranged longitudinally spaced apart from the supporting roller 4 fixedly sleeved on the worm 2. Figure 1 As shown, the support rollers 4 arranged at intervals in the longitudinal direction are respectively supported on the front half and the rear half of the wheel, thereby stably supporting the wheel. It should be noted that, in theory, it is also possible not to provide the support rollers 4 arranged at intervals in the longitudinal direction relative to the support rollers 4 fixedly sleeved on the worm 2, but by comparison, providing the support rollers 4 is more conducive to stabilizing the wheel above the base 1.

[0043] Furthermore, when a support roller 4 is arranged longitudinally spaced relative to the support roller 4 fixedly sleeved on the worm 2, the side parking assist device is further provided with a connecting shaft 6 for mounting a support gear other than the support roller 4 fixedly sleeved on the worm 2, and the connecting shaft 6 is arranged longitudinally spaced with the worm 2. The connecting shaft 6 can be fixedly connected to the base 1, in which case the corresponding support roller 4 can be rotatably sleeved on the connecting shaft 6. The connecting shaft 6 can also be rotatably connected to the base 1, in which case the corresponding support roller 4 is fixedly sleeved on the connecting shaft 6. It should be noted that in an actual setting, the longitudinal spacing between the support roller 4 sleeved on the connecting shaft 6 and the support roller 4 sleeved on the worm 2 should be smaller than the diameter of the wheel in order to support the wheel.

[0044] In a specific embodiment, Figure 3 As shown, two support rollers 4 are fixedly sleeved on the worm 2, wherein one support roller 4 is located on one lateral side of the base 1, and the other support roller 4 is located on the other lateral side of the base 1. Two support rollers 4 are sleeved on the connecting shaft 6, wherein one support roller 4 is located on one lateral side of the base 1, and the other support roller 4 is located on the other lateral side of the base 1.

[0045] Specifically, the ground contact roller 5 is connected to the lower part of the base 1 and contacts the ground to support the base 1 so that the base 1 does not contact the ground. In addition, the axis of the ground contact roller 5 extends in a direction perpendicular to the axis of the wheel, that is, the axis of the wheel extends in a transverse direction and the axis of the ground contact roller 5 extends in a longitudinal direction.

[0046] Furthermore, at least one ground contact roller 5 is fixedly connected to the worm wheel 3. Since the axes of the ground contact roller 5 and the worm wheel 3 both extend in the longitudinal direction, preferably, the fixed worm wheel 3 and the ground contact roller 5 are coaxially arranged.

[0047] Furthermore, at least one contact roller 5 is arranged longitudinally spaced apart from the contact roller 5 fixed to the worm gear 3. Figure 1 As shown, two contact rollers 5 arranged at intervals in the longitudinal direction are respectively supported on the front half of the base 1 and the rear half of the base 1, thereby stably supporting the base 1. It should be noted that, in theory, it is also possible not to provide contact rollers 5 arranged at intervals in the longitudinal direction with the contact rollers 5 fixed to the worm gear 3, but by comparison, providing the contact rollers 5 is more conducive to stabilizing the base 1 on the ground.

[0048] Specifically, a first through hole and a second through hole are provided on the upper part of the base 1. The worm 2 passes through the first through hole, and the connecting shaft 6 passes through the second through hole. In addition, the base 1 also has a first receiving groove 11, which is located below the first through hole, and the top of the first receiving groove 11 is connected to the first through hole. The worm wheel 3 is located in the first receiving groove 11 and meshes with the worm 2 located in the first through hole.

[0049] In addition, a second receiving groove 12 is provided at the lower part of the base body 1 . In a specific embodiment, two second receiving grooves 12 are provided. Each of the above-mentioned ground contact rollers 5 is located in one of the second receiving grooves 12 .

[0050] Furthermore, in a specific embodiment, the top surface of the base body 1 is recessed downwards. This arrangement can avoid the risk that the wheel hits the top surface of the base body 1 and fails to contact the supporting rollers 4 .

[0051] Furthermore, the side parking assist device is further provided with a slope 7. The slope 7 is located on a longitudinal side of the base 1, and the highest position of the slope 7 is connected to the base 1. Specifically, the slope 7 and the base 1 can be provided integrally.

[0052] And, if Figure 2 As shown, in the use state, the lowest position of the slope 7 contacts the ground, so that the wheel climbs along the slope 7 to a position in contact with the support roller 4.

[0053] Specifically, Figure 2 As shown in FIG. 1 , when the lowest position of the slope 7 contacts the ground, the ground contact roller 5 on the side away from the slope 7 is tilted upward from the ground. Figure 1 As shown, when each of the ground contact rollers 5 is in contact with the ground, the lowest position of the slope 7 is tilted upward from the ground.

[0054] Furthermore, the side parking assist device is also provided with a ratchet assembly (not shown in the figure). Specifically, the ratchet assembly includes a pawl and a ratchet. The pawl is rotatably connected to the base 1, and can be rotated to a first position that does not conflict with the ratchet, and can also be rotated to a second position that conflicts with the ratchet. The ratchet is fixedly sleeved on the worm 2.

[0055] When the vehicle is parked in or moved out of the side parking space, the pawl is located at the first position where it does not interfere with the ratchet wheel. When the vehicle needs to be driven from the top of the base 1 to the ground after moving out of the parking space, the pawl is located at the second position where it interferes with the ratchet wheel. At this time, the worm 2 and the support roller 4 fixed on the worm 2 cannot rotate with the wheel.

[0056] By providing the ratchet assembly, the problem that the vehicle still moves to the left and the problem that the wheels rotate in situ can be avoided during the process of driving the vehicle from above the base 1 to the ground.

[0057] The following is a detailed description of the use of the side parking assist device:

[0058] When you need to move the vehicle into a parallel parking space, first drive the vehicle to the left rear side of the parallel parking space and make the vehicle basically parallel to the side parking space. Of course, you can also drive the vehicle to the left front side of the side parking space. Here we take driving to the left rear side of the side parking space as an example.

[0059] Then, the vehicle is stopped and a side parking assist device is placed in front of each wheel, with the slope 7 of the side parking assist device facing the wheel. Then, the driver shifts into forward gear and steps on the accelerator, so that the wheel climbs along the slope 7 to above the corresponding base 1 of the side parking assist device and contacts the supporting rollers 4 connected to the upper part of the base 1.

[0060] Afterwards, the driver continues to step on the accelerator, the wheel drives the supporting rollers 4 in contact with it to rotate forward, the supporting rollers 4 fixedly mounted on the worm 2 drives the worm 2 to rotate forward, the worm 2 drives the worm wheel 3 meshing with it to rotate, and the worm wheel 3 drives the ground contact roller 5 fixedly connected to it to rotate, thereby causing the vehicle to move horizontally to the right into the side parking space.

[0061] When the vehicle needs to be moved out of the parking space, the reverse gear is engaged and the accelerator is stepped on. The wheels drive the supporting rollers 4 in contact with them to rotate reversely. The supporting rollers 4 fixedly mounted on the worm 2 drive the worm 2 to rotate reversely. The worm 2 drives the worm wheel 3 meshing with it to rotate. The worm wheel 3 drives the ground contact roller 5 fixedly connected to it to rotate, thereby causing the vehicle to move horizontally to the left out of the side parking space.

[0062] After the vehicle is moved out of the side parking space, the pawl is adjusted to the second position so that the pawl contacts the ratchet wheel to limit the rotation of the worm 2 and the supporting roller 4 fixed to the worm 2 with the wheel. At this time, the reverse gear is continued to be engaged and the accelerator is stepped on, and the wheel rolls down along the slope 7 to the ground.

[0063] From the above analysis, it can be seen that the side parking assist device provided by the present invention has the following technical effects:

[0064] a. The overall structure is simple, light and portable;

[0065] b. The vehicle's own wheels are used for driving, so there is no need to set up additional driving components, which is conducive to simplifying the overall structure of the side parking assist device. In addition, compared with electric drive and other methods, there is no need for charging and other operations, which is more convenient to use.

[0066] c. It can assist vehicles to park in parking spaces that are only slightly longer than the length of the vehicle, thus achieving parking with extremely small spacing.

[0067] In addition, the present invention also provides a vehicle, wherein a plurality of wheels are arranged at the bottom of the vehicle, and each wheel is equipped with any of the above-mentioned side parking assist devices.

[0068] The technical effects of this vehicle are consistent with the technical effects of the above-mentioned side parking assist device and will not be repeated here.

[0069] The above is a detailed introduction to the vehicle and the side parking assist device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A side parking assist device, characterized in that: The side parking assist device comprises a base (1), and also comprises a worm (2), a worm wheel (3), a support roller (4) and a ground contact roller (5) rotatably connected to the base (1); wherein the worm (2) is meshed with the worm wheel (3); the support roller (4) is connected to the upper part of the base (1) and contacts the wheel, and the axis thereof extends in the transverse direction; the ground contact roller (5) is connected to the lower part of the base (1) and contacts the ground, and the axis thereof extends in the longitudinal direction; at least one of the support rollers (4) is fixedly sleeved on the worm (2), and at least one of the ground contact rollers (5) is fixedly connected to the worm wheel (3); At least one of the supporting rollers (4) is arranged longitudinally at intervals from the supporting roller (4) fixedly sleeved on the worm (2); at least one of the ground contacting rollers (5) is arranged longitudinally at intervals from the ground contacting roller (5) fixedly connected to the worm wheel (3); The side parking assist device further comprises a connecting shaft (6) for connecting the supporting rollers (4) other than the supporting rollers (4) fixedly sleeved on the worm (2); the connecting shaft (6) and the worm (2) are arranged at intervals in the longitudinal direction; A first through hole and a second through hole are provided on the upper portion of the base body (1); the worm (2) passes through the first through hole, and the connecting shaft (6) passes through the second through hole.

2. The side parking assist device according to claim 1, characterized in that: The connecting shaft (6) is rotatably connected to the base (1), and the corresponding supporting roller (4) is fixedly sleeved on the connecting shaft (6); or, the connecting shaft (6) is fixedly connected to the base (1), and the corresponding supporting roller (4) is rotatably sleeved on the connecting shaft (6).

3. The side parking assist device according to claim 2, characterized in that: The two support rollers (4) are fixedly sleeved on the worm (2), wherein one of the support rollers (4) is located on one lateral side of the base (1), and the other of the support rollers (4) is located on the other lateral side of the base (1); the two support rollers (4) are fixedly sleeved on the connecting shaft (6), wherein one of the support rollers (4) is located on one lateral side of the base (1), and the other of the support rollers (4) is located on the other lateral side of the base (1).

4. The side parking assist device according to claim 1, characterized in that: The base (1) is also provided with a first accommodating groove (11) for accommodating the worm gear (3); the first accommodating groove (11) is located below the first through hole, and the top of the first accommodating groove (11) is connected to the first through hole.

5. The side parking assist device according to claim 1, characterized in that: The base body (1) is provided with a second accommodating groove (12) for accommodating the ground contact roller (5).

6. The side parking assist device according to any one of claims 1 to 5, characterized in that: The side parking assist device further comprises a ramp (7); the ramp (7) is located on a longitudinal side of the base (1); the highest position of the ramp (7) is connected to the base (1), and the lowest position of the ramp (7) can contact the ground, so that the wheel climbs along the ramp (7) to a position in contact with the support roller (4).

7. The side parking assist device according to claim 6, characterized in that: When each of the ground contact rollers (5) is in contact with the ground, the lowest position of the slope (7) is tilted upward from the ground.

8. The side parking assist device according to any one of claims 1 to 5, characterized in that: The side parking assist device also includes a ratchet assembly, which includes a pawl and a ratchet; the pawl is rotatably connected to the base (1) and can be rotated to a first position that does not conflict with the ratchet and a second position that conflicts with the ratchet; the ratchet is fixedly sleeved on the worm (2).

9. A vehicle, characterized in that: A plurality of wheels are arranged at the bottom of the vehicle, and each of the wheels is equipped with the side parking assist device according to any one of claims 1-8.

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