Transmission protection assembly for parking lock

Abstract

The utility model provides a transmission protection assembly for a parking space lock, which relates to the field of parking space locks and comprises a shell, a first connecting piece for connecting a turning plate and a second connecting piece capable of actively rotating, the first connecting piece and the second connecting piece are both rotationally fixed to the shell. The rotating shafts of the first connecting piece and the second connecting piece are coaxial; a plurality of containing grooves are formed in the end face of the side, facing the second connecting piece, of the first connecting piece. The groove bottom of the accommodating groove is connected with a spring; a small ball is fixed to the end, facing the opening of the containing groove, of the spring. The size of the small ball is smaller than that of the opening of the accommodating groove; the end face, facing the first connecting piece, of the second connecting piece is provided with a plurality of hemispherical grooves matched with the small balls. And when the spring is in a natural extension state, the small ball can be jacked in the groove by the spring. According to the transmission protection assembly for the parking spot lock, the problem that an automobile and the parking spot lock are prone to being damaged when the automobile forcibly presses the turning plate in the rising state is solved, and the automobile and the parking spot lock can be protected.

Description

Technical Field

[0001] The utility model relates to the field of parking locks, in particular to a transmission protection component for parking locks. 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] The parking lock has a flap structure, which has two postures: raised and lowered. When the flap is raised, it blocks the vehicle, and when the flap is lowered, the vehicle can pass normally.

[0004] For example, the Chinese patent application number 202121380947.1 discloses a smart shared parking space ground lock, which discloses a forced smart parking device, provides a parking space lock structure and explains its working principle.

[0005] However, in actual use, some drivers do not follow the rule of not entering or leaving the parking space when the flap is raised, but instead forcibly press over the raised flap. On the one hand, this behavior may cause damage to the car chassis (caused by collision with the flap), and on the other hand, the flap is forced to rotate (relative to the flap's own rotating shaft due to being pressed by the wheel), which may cause damage to the transmission structure that drives the flap to work normally, as well as damage to the flap itself, thereby affecting the subsequent normal operation of the parking lock. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a transmission protection assembly for a parking lock, which can protect the car and the parking lock when the car forcibly presses over the flap in the raised state.

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

[0008] The utility model provides a transmission protection component for a parking lock, comprising a shell, a first connecting member for connecting a flap and an actively rotatable second connecting member; the first connecting member and the second connecting member can be rotatably fixed on the shell; the rotating shafts of the first connecting member and the second connecting member are coaxial; 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; a plurality of hemispherical grooves adapted to the small ball are provided on the end face of the second connecting member facing the first connecting member; when the spring is in a naturally extended state, the small ball can be pressed tightly in the groove by the spring.

[0009] The transmission protection assembly for the parking lock provided by the present invention is preferably such that the accommodating groove is a cylindrical groove; the cylindrical height of the accommodating groove is perpendicular to the end face of the second connecting member facing the first connecting member; and the cylindrical diameter of the accommodating groove is equal to the diameter of the ball.

[0010] The utility model provides a transmission protection component for a parking lock, preferably, the first connecting member is the first rotating shaft compared to the rotating shaft of the shell, and the second connecting member is the first rotating shaft compared to the rotating shaft of the shell; the accommodating grooves are arranged in an equidistant circular array with the first rotating shaft as the axis; the number of the accommodating grooves is six; the grooves are arranged in an equidistant cylindrical array with the first rotating shaft as the axis; the number of the grooves is twelve; the distance from the center of the small ball to the first rotating shaft and the distance from the center of the hemispherical groove to the first rotating shaft are equal.

[0011] The transmission protection assembly for a parking lock provided by the present invention is preferably provided with an internal spline hole on the first connecting member; a transmission hole is provided on the shell; the axis of the internal spline hole is consistent with the axis of the first connecting member in the rotation direction of the shell; and the internal spline hole is connected to the transmission hole.

[0012] The transmission protection assembly for the parking lock provided by the present invention is preferably such that the first connecting member is rotatably connected to the housing via a bearing; and the second connecting member is rotatably connected to the housing via a bearing.

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

[0014] The utility model provides a transmission protection assembly for a parking lock, which relates to the field of parking locks, and includes a housing, a first connecting member for connecting a flap, and an actively rotatable second connecting member; the first connecting member and the second connecting member are both rotatably fixed to the housing; the first connecting member and the second connecting member have coaxial rotating axes; the first connecting member has a plurality of receiving grooves on the end surface 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 second connecting member has a plurality of hemispherical grooves on the end surface facing the first connecting member, which are adapted to fit the small balls; the spring is in a naturally extended state, and the small balls are pressed tightly into the grooves by the spring. The transmission protection assembly for a parking lock provided by the utility model solves the problem in the prior art that a car is easily damaged when forcibly pressing over a raised flap, and can protect the car and the parking lock when the car forcibly presses over the raised flap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present application and its features, shapes and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The same reference numbers in all the drawings indicate the same parts. The drawings have not been drawn to scale, the emphasis being on illustrating the principle of the present application.

[0016] Figure 1 Figure 1 is a schematic diagram of the overall structure of a transmission protection assembly for a parking lock according to an embodiment of the present application.

[0017] Figure 2 Figure 2 is a schematic diagram of the structure of the transmission protection assembly for the parking lock according to an embodiment of the present application, with the housing removed.

[0018] Figure 3 Figure 3 is a schematic diagram of the connection relationship between the first connecting member and the second connecting member of the transmission protection assembly for the parking lock according to an embodiment of the present application.

[0019] Figure 4 Figure 4 is a schematic diagram of the exploded structure of the first connecting member and the second connecting member of the transmission protection assembly for the parking lock according to an embodiment of the present application.

[0020] Figure 5 Figure 5 is a schematic diagram of the exploded structure of the first connecting member and the second connecting member of the transmission protection assembly for the parking lock according to an embodiment of the present application.

[0021] Figure 6 Figure 6 is a schematic diagram of the local structure of the first connecting member of the transmission protection assembly for the parking lock according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments and features in the present application can be combined with each other without conflict. It should be noted that the terms used in the present application are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application.

[0023] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Therefore, the detailed description of the embodiments of the present application provided in the following drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Embodiment 1

[0025] The utility model discloses a transmission protection assembly for parking stall lock provided in embodiment 1, like Figures 1 to 6 As shown in the figure, it comprises a shell 1, a first connecting piece 2 for connecting a flap and a second connecting piece 3 that can be actively rotated; the first connecting piece 2 and the second connecting piece 3 are both rotatably fixed on the shell 1; the rotation shafts of the first connecting piece 2 and the second connecting piece 3 are coaxial; a plurality of accommodating grooves 21 are formed on the end face of the first connecting piece 2 towards the second connecting piece 3; the groove bottoms of the accommodating grooves 21 are connected with springs 22; the springs 22 extend along the depth direction of the accommodating grooves 21; the end part of the spring 22 towards the groove opening of the accommodating groove 21 is fixed with a small ball 23; the size of the small ball 23 is smaller than the size of the groove opening of the accommodating groove 21; a plurality of semispherical grooves 31 that are adapted to the small ball are arranged on the end face of the second connecting piece 3 towards the first connecting piece 2; under the natural elongation state of the spring 22, the small ball 23 can be tightly pressed in the groove 31 by the spring 22.

[0026] The transmission protection assembly for parking stall lock provided in embodiment 1 of the utility model is used as a part of the parking stall lock, the parking stall lock is the prior art, and the structure provided in the embodiment is used for connecting a transmission structure (such as a motor) and a flap, so that the transmission of the flap is realized while the transmission structure itself is protected.

[0027] The utility model discloses a transmission protection assembly for parking stall lock, the first connecting piece 2 is fixed with flap, and the pivot of flap is identical with the pivot of first connecting piece compared with the pivot of shell 1;Second connecting piece 3 cooperates with transmission structure, so that transmission structure can be fixed with second connecting piece 3, and transmission structure can drive second connecting piece 3 to rotate compared with shell 1 (for example, fixing turbine on second connecting piece 3, fixing worm on the output shaft of motor, so that motor can drive worm to rotate, then through the transmission cooperation of worm and turbine, realize transmission of worm to turbine, so as to drive the rotation of second connecting piece 3 through the rotation of turbine);After the rotation of second connecting piece 3, the ball 23 in the recess 31 of second connecting piece 3 will rotate with second connecting piece 3 (the pivot of second connecting piece 3 compared with the pivot of shell 1), and the inner wall of recess 31 of second connecting piece 3 exerts pressure on ball 23, then ball 23 exerts pressure on the inner wall of accommodating groove 21 of first connecting piece 2, and first connecting piece 2 will rotate compared with shell 1 after receiving the pressure from ball 23, so that the flap fixed on first connecting piece 2 rotates, so as to realize the switching between the raised state and the flat-down state of flap. Compared with the fixing mode that the flap is directly connected with the transmission structure in the prior art, the fixing place of the flap and the transmission structure will be damaged due to reverse rotation when the flap (forcedly pressed by a vehicle) rotates by itself, and the pure structure will be damaged due to the reverse rotation of the transmission structure driven by the flap. The structure provided in the embodiment can not affect the transmission structure during the self-rotation of the flap. The principle is that when the flap drives the rotation of the first connecting piece 2 of the embodiment, the second connecting piece 3 remains stationary, at this time, the ball 23 will generate pressure between the inner wall of the recess 31, and the pressure between the ball 23 and the inner wall of the recess 31 makes the ball 23 slide relative to the inner wall of the recess 31. In this process, the position of the ball and the groove bottom of the accommodating groove 21 becomes smaller (because the ball 23 is in close contact with the bottom of the recess 31, the ball 23 is farthest from the accommodating groove 21 when the ball 23 slides relative to the recess 31, and the ball 23 is separated from the close contact with the bottom of the recess 31, thereby reducing the distance between the ball 23 and the groove bottom of the accommodating groove 21), and the spring 22 is thus extruded until the ball 23 completely separates from the recess 31, and the ball 23 is tightly pressed against the end face of the second connecting piece 3 (toward the side of the first connecting piece 2). At this time, the first connecting piece 2 and the second connecting piece 3 have relatively rotated, so that the first connecting piece 2 driven by the flap will not affect the second connecting piece 3 adjacent to the transmission structure, thereby avoiding the damage of the transmission structure and the damage of the automobile chassis caused by the flap that cannot rotate. The first connecting piece 2 continues to rotate, the ball 23 will slide relative to the end face of the second connecting piece 3, and be repositioned in another recess 31, so that the first connecting piece 2 and the second connecting piece 3 are reconnected, thereby avoiding the situation that the parking stall lock cannot work normally due to the forced rotation of the flap, and reducing the maintenance cost of the parking stall lock.

[0028] The transmission protection assembly for a parking lock provided in Example 1 of the utility model solves the problem in the prior art that when a car forcibly presses over a flap in a raised state, the car and the parking lock are easily damaged. When a car forcibly presses over a flap in a raised state, the car and the parking lock can be protected.

[0029] Since the second connecting member 3 needs to transmit the power to the first connecting member 2 through the small ball 23, when the second connecting member 3 applies pressure to the small ball 23, the small ball can apply pressure to the first connecting member 2, thereby using the small ball 23 to drive the first connecting member 2 to rotate. As a preferred solution, in this embodiment, the receiving groove 21 is a cylindrical groove; the cylindrical height of the receiving groove 21 is perpendicular to the end face of the second connecting member 3 facing the first connecting member 2; the cylindrical diameter of the receiving groove 21 is equal to the diameter of the small ball 23. The ball 23 is connected to the bottom of the receiving groove 21 through the spring 22. The ball 23 is pressed tightly in the groove 31 by the spring 22. After the first connecting member 2 and the second connecting member 3 rotate relative to each other, the ball 23 can be pressed tightly against the contact surface of the first connecting member 2 and the second connecting member 3. At this time, the ball 23 will be completely in the cylindrical receiving groove 21. The diameter of the receiving groove 21 is equal to the diameter of the ball 23. This is to apply a supporting force to the ball 23 through the inner wall of the receiving groove 21 to prevent the ball 23 from being driven by the inner wall of the groove 31, thereby applying a force to the spring that is actually perpendicular to the expansion and contraction direction of the spring 22, thereby destroying the spring 22.

[0030] In order to ensure that the small balls 23 on the first connecting member 2 can be just tightly pressed into the groove 31 to ensure the connection stability between the second connecting member 3 and the first connecting member 2, as a preferred solution, in this embodiment, the first connecting member 2 is the first rotating axis compared to the rotating axis of the shell 1, and the second connecting member 3 is the first rotating axis compared to the rotating axis of the shell 1; the accommodating grooves 21 are arranged in an equidistant circular array with the first rotating axis as the axis; the number of accommodating grooves 21 is six; the grooves 31 are arranged in an equidistant cylindrical array with the first rotating axis as the axis; the number of grooves 31 is twelve; the distance from the center of the small ball 23 to the first rotating axis and the distance from the center of the hemispherical groove 31 to the first rotating axis are equal. Since each receiving groove 21 is provided with a small ball 23 fixed by a spring 22 (one end of the spring 22 is pressed against the bottom of the receiving groove 21, and the other end is connected to the small ball 23), the number of the receiving grooves 21 is 6, so the angle between the adjacent receiving grooves 21 and the line connecting the first connecting member 2 (with the rotating shaft of the first connecting member 2 as the axis, in the circumferential direction) is 60°, and the angle between the adjacent grooves 31 (with the line connecting the first rotating shaft as the axis, in the circumferential direction) is 30°, so each small ball 23 is arranged in a groove 31 spaced apart (with the rotating shaft of the second connecting member 3 as the axis, in the circumferential direction). When the first connecting member 2 rotates 30°, the small ball 23 will be re-tightened in a groove 31, thereby ensuring the transmission stability between the first connecting member 2 and the second connecting member 3.

[0031] As a preferred solution, in this embodiment, the first connecting member 2 is provided with an internal spline hole 24; the housing 1 is provided with a transmission hole 11; the axis of the internal spline hole 24 is aligned with the axis of the first connecting member 2 in the direction of rotation relative to the housing 1; and the internal spline hole 24 is connected to the transmission hole 11. This embodiment uses a flap with an external spline end. The flap extends the external spline end from the transmission hole 11 into the housing 1, and the external spline cooperates with the internal spline hole 24 to achieve fixation with the first connecting member 2.

[0032] As a preferred solution, in this embodiment, the first connecting member 2 is rotatably connected to the housing 1 via a bearing; the second connecting member 3 is rotatably connected to the housing 1 via a bearing. The rotatable fixing of two structural members via bearings is a prior art and will not be described in detail here.

[0033] In summary, the present invention provides a transmission protection assembly for a parking lock, which relates to the field of parking locks and includes a housing, a first connecting member for connecting a flap, and an actively rotatable second connecting member; the first connecting member and the second connecting member are both rotatably fixed to the housing; the first connecting member and the second connecting member have coaxial rotating shafts; the first connecting member has a plurality of receiving grooves on the end surface 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 second connecting member has a plurality of hemispherical grooves on the end surface facing the first connecting member that are adapted to fit the small balls; the spring is in a naturally extended state, and the small balls are pressed tightly into the grooves by the spring. The transmission protection assembly for a parking lock provided by the present invention solves the problem in the prior art that a car is easily damaged when forcibly pressing over a raised flap, and can protect the car and the parking lock when the car is forcibly pressing over the raised flap.

[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 transmission protection assembly for a parking lock, characterized in that: It comprises a housing, a first connecting member for connecting the flap, and a second connecting member capable of active rotation; The first connecting member and the second connecting member can be rotatably fixed on the housing; The rotating axes of the first connecting member and the second connecting member are coaxial; 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 second connecting member is provided with a plurality of hemispherical grooves on the end surface facing the first connecting member, which are adapted to fit the small balls; When the spring is in a naturally extended state, the ball can be pressed tightly into the groove by the spring.

2. The transmission protection assembly for a parking lock according to claim 1, characterized in that: The receiving groove is a cylindrical groove; the cylindrical height of the receiving groove is perpendicular to the end surface of the second connecting member facing the first connecting member; The cylindrical diameter of the receiving groove is equal to the diameter of the ball.

3. The transmission protection assembly for a parking lock according to claim 1, characterized in that: The first connecting member is a first rotating shaft compared to the rotating shaft of the housing, and the second connecting member is a first rotating shaft compared to the rotating shaft of the housing; The receiving slots are arranged in an equidistant circular array with the first rotating shaft as the axis; the number of the receiving slots is six; The grooves are arranged in an equidistant cylindrical array with the first rotating shaft as the axis; the number of the grooves is twelve; The distance from the center of the small ball to the first rotation axis is equal to the distance from the center of the hemispherical groove to the first rotation axis.

4. The transmission protection assembly for a parking lock according to claim 1, characterized in that: The first connecting member is provided with an inner spline hole; the housing is provided with a transmission hole; The axis of the inner spline hole is consistent with the axis of the first connecting member relative to the rotation direction of the housing; The inner spline hole is communicated with the transmission hole.

5. The transmission protection assembly for a parking lock according to claim 1, 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.

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