Turnover plate motor transmission structure for ground type parking spot lock

Abstract

The utility model provides a turning plate motor transmission structure for a ground type parking spot lock, which relates to the field of parking spot locks and comprises a shell, a first gear, a second gear, a worm and a transmission shaft. The first gear is rotatably fixed on the shell; the second gear is rotatably fixed on the shell; the second gear is meshed with the first gear; the worm is coaxially fixed on the second gear; a turbine is coaxially fixed on the transmission shaft; the worm is in transmission connection with the turbine; the transmission shaft is arranged below the worm; and the transmission shaft is rotatably fixed on the shell. The turning plate motor transmission structure for the ground type parking spot lock solves the problem that a turning plate of the ground type parking spot lock in the prior art affects normal running of a vehicle, and the influence of the turning plate on running of the vehicle can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of parking locks, in particular to a flap motor transmission structure for a ground-type parking lock. Background Art

[0002] A parking space lock, also called a parking ground lock, is a mechanical device installed on the ground to prevent others from occupying the parking space.

[0003] Parking locks usually include underground and ground types, both of which have a flap that has two postures: raised and lowered. The flap is raised to block vehicles, and the flap is lowered to allow vehicles to pass normally.

[0004] The difference is that the underground structure is completely underground. For example, Chinese patent application No. 202322463495.9 discloses a ground-mounted parking lock. When the flap is in the lowered state, the upper surface of the flap is flush with the ground, so that the vehicle can pass through a flat surface when pressing over the flap. However, the underground ground lock requires digging a pit on the ground, which makes it difficult to assemble and maintain.

[0005] The ground-type ground lock is on the ground. In the prior art, there is a smart shared parking ground lock disclosed in Chinese patent application number 202122484067.5, which describes a ground-type ground lock. Since the main structure is entirely above the ground, it is simple to install and maintain (no pit is required). However, when the flap is in the lowered state, it will still be higher than the ground. When a vehicle passes by, if the wheel presses over the lowered flap, the vehicle will be bumpy due to the height difference; some vehicles with lower chassis may also contact the lowered flap while driving through the parking lock, causing the vehicle to be scratched by the flap. Utility Model Content

[0006] In response to the above technical problems, the present invention provides a flap motor transmission structure for a ground-type parking lock, which can reduce the impact of the flap on vehicle driving.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The utility model provides a flap motor transmission structure for a ground-type parking lock, comprising a housing, a first gear, a second gear, a worm and a transmission shaft; the first gear is rotatably fixed to the housing; the second gear is rotatably fixed to the housing; the second gear is meshed with the first gear; the worm is coaxially fixed to the second gear; a turbine is coaxially fixed to the transmission shaft; the worm is transmission-connected to the turbine; the transmission shaft is arranged on the lower side of the worm; and the transmission shaft is rotatably fixed to the housing.

[0009] The utility model provides a flap motor transmission structure for a ground-type parking lock, preferably, the transmission shaft includes a first connecting member and a second connecting member; the first connecting member and the second connecting member are respectively rotatably fixed to the shell; the rotating shafts of the first connecting member and the second connecting member are coaxial; the turbine is coaxially fixed to the second connecting member; a plurality of receiving grooves are provided on the end face of the first connecting member facing the second connecting member; a spring is connected to the bottom of the receiving groove; the spring extends along the depth direction of the receiving groove; a small ball is fixed on the end of the spring facing the notch of the receiving groove; the size of the small ball is smaller than the size of the notch of the receiving groove; the turbine is fixed on the end face of the second connecting member facing the first connecting member; the turbine has a contact surface abutting against the first connecting member; a plurality of hemispherical grooves adapted to the small ball are provided on the contact surface; when the spring is naturally extended, the small ball can be pressed tightly in the groove by the spring.

[0010] The utility model provides a flap motor transmission structure for a ground-type parking lock, preferably, the first connecting member is rotatably connected to the housing via a bearing; the second connecting member is rotatably connected to the housing via a bearing.

[0011] The utility model provides a flap motor transmission structure for a ground-type parking lock, preferably, the accommodating grooves on the first connecting member are arranged in an equidistant circular array with the first connecting member relative to the rotating shaft of the shell; the number of the accommodating grooves is six; the grooves on the contact surface are arranged in an equidistant circular array with the rotating shaft of the turbine as the center; the number of the grooves is twelve.

[0012] The utility model provides a flap motor transmission structure for a ground-type parking lock, preferably, an inner spline hole is provided at the rotating shaft of the first connecting member; a transmission hole is provided on the housing; and the inner spline hole is connected to the transmission hole.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] The present invention provides a flap motor transmission structure for a ground-type parking lock, which relates to the field of parking locks and includes a housing, a first gear, a second gear, a worm, and a transmission shaft; the first gear is rotatably fixed to the housing; the second gear is rotatably fixed to the housing; the second gear is meshed with the first gear; the worm is coaxially fixed to the second gear; a turbine is coaxially fixed to the transmission shaft; the worm is in transmission connection with the turbine; the transmission shaft is disposed on the underside of the worm; and the transmission shaft is rotatably fixed to the housing. The flap motor transmission structure for a ground-type parking lock provided by the present invention solves the problem in the prior art that the flap of a ground-type parking lock may affect the normal driving of a vehicle, thereby reducing the impact of the flap on vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention and its features, features, configurations, and advantages will become more apparent upon reading the detailed description of the following non-limiting embodiments with reference to the accompanying drawings. Like reference numerals indicate like parts throughout the drawings. The drawings are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of the flap motor transmission structure for a ground-type parking lock provided in Example 1 of the present utility model.

[0017] Figure 2 This is a structural diagram of the flap motor transmission structure for a ground-type parking lock provided in Example 1 of the present invention, with the motor connected and the housing removed.

[0018] Figure 3 This is a schematic diagram of the connection relationship between the first gear and the second gear of the flap motor transmission structure for a ground-type parking lock provided in Example 1 of the present utility model.

[0019] Figure 4 It is a schematic diagram of the positional relationship between the spline hole and the first connecting member in the transmission structure of the flap motor for a ground-type parking lock provided in Example 1 of the present utility model.

[0020] Figure 5 This is a schematic structural diagram of the first connecting member of the flap motor transmission structure for a ground-type parking lock provided in Example 1 of the present utility model.

[0021] Figure 6 It is a schematic diagram of the turbine structure of the flap motor transmission structure for a ground-type parking lock provided in Example 1 of the present utility model. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. It should be noted that the terms used in this utility model are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to this application.

[0023] The following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. It is obvious that the embodiments described are only some of the embodiments of the present invention, rather than all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0024] Example 1:

[0025] The first embodiment of the present invention provides a flap motor transmission structure for a ground-type parking lock, such as Figures 1 to 6 As shown, it includes a housing 1, a first gear 2, a second gear 3, a worm 4 and a transmission shaft 5; the first gear 2 is rotatably fixed to the housing 1; the second gear 3 is rotatably fixed to the housing 1; the second gear 3 is engaged with the first gear 2; the worm 4 is coaxially fixed to the second gear 3; a turbine 6 is coaxially fixed to the transmission shaft 5; the worm 4 is in transmission connection with the turbine 6; the transmission shaft 5 is arranged on the lower side of the worm 4; the transmission shaft 5 is rotatably fixed to the housing 1.

[0026] When using the flap motor transmission structure for a ground-type parking lock provided in Example 1 of the utility model, it is used as an accessory of the ground-type parking lock. The ground-type parking lock is a prior art. The structure provided in this embodiment is used to connect the motor and the flap to realize transmission between the motor and the flap.

[0027] The first gear 2 is fixed coaxially with the output shaft of the motor, and the transmission shaft 5 is fixed coaxially with the flap; when the motor output shaft rotates, it drives the first gear 2 (fixed coaxially with the output shaft) to rotate, the rotation of the first gear 2 drives the second gear 3 (meshing with the first gear 2) to rotate, the rotation of the second gear 3 drives the worm 4 (fixed coaxially with the second gear 3) to rotate, the rotation of the worm 4 drives the turbine 6 to rotate (turbine-worm transmission), the rotation of the turbine 6 drives the transmission shaft 5 (fixed coaxially with the turbine 6) to rotate, thereby rotating the flap fixed on the transmission shaft 5; compared with the prior art, the height of the transmission shaft 5 in this embodiment can be lower than the height of the motor output shaft (because the transmission shaft 5 is arranged on the lower side of the worm 4, the axis of the worm 4 is consistent with the second gear 3, so the height of the transmission shaft 5 is the same as the height of the first and second gears 3, and the height of the axis of the first gear 2 and the second gear 3 has no direct influence, so there is no need to consider the height of the motor output shaft caused by the structure of the motor (the prior art ground type parking lock The parking lock motor is above the ground, and the height of the motor output shaft is affected by the motor structure). It is only necessary to ensure the engagement of the first gear 2 and the second gear 3, and then lower the height of the second gear 3, so that the axis of the turbine 6 connected to the worm 4 is at a lower height (compared to the height between the motor output shaft and the ground). Due to this embodiment, the motor's own structure will not affect the height of the flap shaft (the height of the drive shaft 5 in this embodiment is related to the height of the turbine shaft. The motor can be set in the box of the parking lock because the transmission structure is placed. When the vehicle presses over the flap, it will not contact this box, so the height of the motor will not affect the height of the flap). Therefore, when the flap connected by the structure of this embodiment is in the lowered state, the upper surface of the flap is closer to the ground (flap of the same thickness) than the flap directly connected to the motor output shaft in the prior art (such as the connection method in a smart shared parking lock disclosed in Chinese patent application No. 202122484067.5), thereby reducing the height difference passed by the car when the wheel presses over the lowered flap, thereby reducing the bumps of the car.

[0028] The flap motor transmission structure for a ground-type parking lock provided in Example 1 of the present invention solves the problem in the prior art that the flap of a ground-type parking lock may affect the normal driving of the vehicle, and can reduce the impact of the flap on the driving of the vehicle.

[0029] Since some drivers will forcefully press the flap when it is in the raised state, this will cause damage to the car and the parking lock. The car chassis will be scratched by the flap, and the parking lock will damage the transmission structure of the flap due to the reversal of the flap. To avoid this situation, in this embodiment, the transmission shaft 5 includes a first connecting member 51 and a second connecting member 52; the first connecting member 51 and the second connecting member 52 are rotatably fixed to the housing 1 respectively; the rotating shafts of the first connecting member 51 and the second connecting member 52 are coaxial; the turbine 6 is coaxially fixed to the second connecting member 52; the end face of the first connecting member 51 facing the second connecting member 52 is provided with a There are several receiving grooves 511; the bottom of the receiving groove 511 is connected to a spring 512; the spring 512 extends along the depth direction of the receiving groove 511; a small ball 513 is fixed to the end of the spring 512 facing the notch of the receiving groove 511; the size of the small ball 513 is smaller than the size of the notch of the receiving groove 511; the turbine 6 is fixed on the end face of the second connecting member 52 facing the first connecting member 51; the turbine 6 has a contact surface 61 abutting against the first connecting member; a number of hemispherical grooves 611 adapted to the small ball are provided on the contact surface 61; when the spring 512 is naturally extended, the small ball 513 can be pressed tightly in the groove 611 by the spring 512.The flap is fixed to the first connecting member 51, and the rotating shaft of the flap is consistent with the rotation direction of the first connecting member 51 compared to the housing 1. When the vehicle forcibly presses over the flap, the first connecting member 51 rotates. At this time, the ball 513 in the groove 611 will slide relative to the groove 611 as the first connecting member 51 rotates. Since the turbine 6 does not rotate, the ball rotates about the axis of the first connecting member 51, and the ball moves to abut against the contact surface 61 of the turbine 6. At this time, the spring 512 is compressed until the ball 513 moves into another groove 611. The spring 512 naturally extends, pressing the ball 513 tightly into this groove 611. In this process, the first connecting member 51 and the second connecting member 52 rotate relative to each other, but the motor is not reversed (because the turbine 6 itself does not rotate, it will naturally not bring about the rotation of the second gear 3, thereby causing the motor fixed to the first gear 2 to rotate); when When the flap needs to be rotated later, the turbine 6 rotates, which will drive the second connecting member 52 to rotate compared to the shell 1. Since the ball 513 of the first connecting member 51 is in the groove 611 of the turbine 6, the side wall of the groove 611 will exert pressure on the ball, and part of the ball is also in the receiving groove 511. The ball 513 provides pressure to the inner wall of the receiving groove 511, so that the first connecting member 51 is subjected to force to rotate compared to the shell 1, and the rotation of the first connecting member 51 will drive the flap fixed on the first connecting member 51 to rotate; with this arrangement, after the car forcibly presses over the flap in the raised state, the flap rotates together with the first connecting member 51, so the flap will not scratch the car chassis, and the rotation of the flap (because it will not cause the parking lock transmission structure other than the first connecting member 51 to rotate) will not cause damage to the structure of the parking lock driving the flap, and will not hinder the normal operation of the parking lock (after the flap is forcibly pressed by the car).

[0030] As a preferred solution, in this embodiment, the first connecting member 51 is rotatably connected to the housing 1 via a bearing; the second connecting member 52 is rotatably connected to the housing 1 via a bearing.

[0031] In order to ensure that all the small balls 513 on the first connecting member 51 can be just tightly pressed into the grooves 611 of the turbine 6 to ensure the connection stability between the turbine 6 and the first connecting member 51, as a preferred solution, in this embodiment, the accommodating grooves 511 on the first connecting member 51 are arranged in an equidistant circular array with the first connecting member 51 relative to the rotating axis of the shell 1; the number of the accommodating grooves 511 is six; the grooves 611 on the contact surface 61 are arranged in an equidistant circular array with the rotating axis of the turbine 6 as the center; the number of the grooves 611 is twelve. Since each receiving groove 511 is provided with a small ball 513 fixed by a spring 512 (one end of the spring 512 is pressed against the bottom of the receiving groove 511, and the other end is connected to the small ball 513), the number of the receiving grooves 511 is 6, so the angle between the adjacent receiving grooves 511 and the connecting line of the first connecting member 51 (with the first connecting member 51 as the axis, in the circumferential direction) is 60°, and the angle between the adjacent grooves 611 and the turbine 6 (with the turbine shaft as the axis, in the circumferential direction) is 30°, so each small ball 513 is arranged in a groove 611 spaced apart (with the turbine shaft as the axis, in the circumferential direction). When the first connecting member 51 rotates 30°, the small ball 513 will be re-tightened in a groove 611, thereby ensuring the transmission stability between the first connecting member 51 and the turbine 6.

[0032] As a preferred solution, in this embodiment, an internal spline hole 514 is defined at the rotation axis of the first connector 51; a transmission hole 11 is defined in the housing 1; the internal spline hole 514 communicates with the transmission hole 11 (the axis of the internal spline hole 514 aligns with the rotation axis of the first connector 51). This embodiment utilizes a flap with an external spline at its end. The flap extends the external spline end through the transmission hole 11 into the housing 1, and the external spline engages the internal spline hole 514 to secure the flap to the first connector 51.

[0033] In summary, the present invention provides a flap motor transmission structure for a ground-type parking lock, which relates to the field of parking locks and includes a housing, a first gear, a second gear, a worm, and a transmission shaft; the first gear is rotatably fixed to the housing; the second gear is rotatably fixed to the housing; the second gear is meshed with the first gear; the worm is coaxially fixed to the second gear; a turbine is coaxially fixed to the transmission shaft; the worm is transmission-connected to the turbine; the transmission shaft is disposed on the underside of the worm; and the transmission shaft is rotatably fixed to the housing. The flap motor transmission structure for a ground-type parking lock provided by the present invention solves the problem in the prior art that the flap of a ground-type parking lock affects the normal driving of a vehicle, and can reduce the impact of the flap on vehicle driving.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A flap motor transmission structure for a ground-type parking lock, characterized in that: It includes a housing, a first gear, a second gear, a worm and a transmission shaft; The first gear is rotatably fixed on the housing; The second gear is rotatably fixed on the housing; the second gear is meshed with the first gear; The worm is coaxially fixed to the second gear; a turbine is coaxially fixed to the transmission shaft; the worm is in transmission connection with the turbine; the transmission shaft is arranged at the lower side of the worm; The transmission shaft is rotatably fixed on the housing.

2. The flap motor transmission structure for a ground-type parking lock according to claim 1, characterized in that: The transmission shaft includes a first connecting member and a second connecting member; The first connecting member and the second connecting member are respectively rotatably fixed on the housing; The rotating axes of the first connecting member and the second connecting member are coaxial; The turbine is coaxially fixed to the second connecting member; A plurality of receiving grooves are formed on the end surface of the first connecting member facing the second connecting member; a spring is connected to the bottom of the receiving groove; the spring extends along the depth direction of the receiving groove; a small ball is fixed to the end of the spring facing the notch of the receiving groove; the size of the small ball is smaller than the size of the notch of the receiving groove; The turbine is fixed on the end surface of the second connecting member facing the first connecting member; the turbine has a contact surface abutting against the first connecting member; the contact surface is provided with a plurality of hemispherical grooves adapted to the small balls; When the spring is in a naturally extended state, the ball can be pressed tightly into the groove by the spring.

3. The flap motor transmission structure for a ground-type parking lock according to claim 2, characterized in that: The first connecting member is rotatably connected to the housing via a bearing; the second connecting member is rotatably connected to the housing via a bearing.

4. The flap motor transmission structure for a ground-type parking lock according to claim 2, characterized in that: The receiving grooves on the first connecting member are arranged in a circumferential array with equal spacing relative to the rotation axis of the housing and the first connecting member; The number of the receiving slots is six; The grooves on the contact surface are arranged in an equidistant circular array with the rotating shaft of the turbine as the center; The number of the grooves is twelve.

5. The flap motor transmission structure for a ground-type parking lock according to claim 2, characterized in that: An inner spline hole is provided at the rotating shaft of the first connecting member; A transmission hole is provided on the housing; The inner spline hole is communicated with the transmission hole.

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