Parking space lock

Abstract

The utility model aims to provide a reliable and low-cost parking space lock, and adopts the technical scheme that the parking space lock is characterized by comprising a bottom plate, a lock body and a lock body, the baffle is hinged to the bottom plate, and sliding grooves are formed in the two side edges of the baffle; the supporting plate is hinged to the bottom plate, and the upper portion of the supporting plate slides on the sliding groove through a pin shaft to be connected with the supporting plate; the driving device is respectively hinged with the baffle plate and the supporting plate; wherein when the driving device retracts, the baffle and the supporting plate gradually slide downwards until the baffle and the supporting plate are overlapped, and when the driving device stretches, the baffle and the supporting plate gradually rise until the baffle and the supporting plate are supported. The device has the advantages of being simple in structure, reliable and low in cost.

Description

Technical Field

[0001] The present application relates to a parking lock, and in particular to a screw-driven parking lock. Background Art

[0002] With the acceleration of urbanization and the dramatic increase in the number of cars, parking has become an increasingly serious problem. To effectively manage and utilize limited parking resources, parking locks, as automated control devices, have become widely used in various parking lots and private parking spaces. Traditional parking locks primarily lock and unlock via a motor-driven swing arm. However, this design has limitations in stability and precision, especially in complex environments or under external forces, where stability and durability are easily challenged.

[0003] In recent years, with the continuous advancement of mechanical transmission and motor control technologies, parking lock designs have become increasingly intelligent and sophisticated. Among these, the use of push rods to drive rocker arms has become a new trend. This design not only improves the parking lock's driving efficiency and stability but also enhances its resistance to external interference, thereby extending its service life.

[0004] In existing actuator drive technology, a common design is to connect the motor's output shaft to the actuator through some kind of transmission mechanism (such as gears or belts), which then drives the rocker arm to achieve rotation. However, this design often suffers from complex structure, low transmission efficiency, and high maintenance costs. To overcome these shortcomings, the industry has begun to explore simpler, more efficient, and more stable actuator drive methods.

[0005] Chinese patent (application number 202321510311 3) discloses such a solution: a parking lock for managing outdoor parking spaces in a smart city, comprising a parking lock base (1), a mounting plate (2), a sensor (4), a motor (5), a controller (6), a ball nut (8), a support rod (10) and a code scanning plate (12), characterized in that: the parking lock base (1) can be installed on the ground in a flat or embedded manner, a motor (5) is installed in the parking lock base (1), a bidirectional screw rod (7) is installed on the power shaft end of the motor (5), two sections of threads in different directions provided on the bidirectional screw rod (7) are threadedly mounted with ball nuts (8), a mounting block (9) is installed on the ball nut (8), one end of the support rod (10) is rotatably mounted on the mounting block (9), and one end of the two groups of support rods (10) installed on the parking lock base (1) is hinged by a hinge (11).

[0006] This triangular lock has a simple structure, low cost and low price. It was originally unlocked manually, but now it can be unlocked electrically using the simple screw structure and high reliability. How to optimize the screw drive to reliably drive the rocker arm has become the manufacturer's research and development focus. Utility Model Content

[0007] The invention of the utility model aims to realize locking and unlocking of a parking space lock by an electric push rod.

[0008] In order to achieve the technical problem to be solved by the present invention, the technical solution is: a parking lock, a base plate; a baffle, the baffle is hinged to the base plate, and both side edges of the baffle are provided with sliding grooves; a support plate, the support plate is hinged to the base plate, and the support plate is slidably connected to the sliding grooves of the baffle; a driving device, the driving device is hinged to the baffle and the support plate respectively; wherein, when the driving device contracts, the baffle and the support plate gradually slide down until they overlap, and when the driving device extends, the baffle and the support plate gradually rise until they are supported, thereby completing the unlocking and locking actions of the parking lock.

[0009] Furthermore, a motor is provided with an output shaft; a bracket is fixed to the motor, and the bracket includes two arms;

[0010] A screw rod, which is connected to the output shaft and is provided with an external thread; a push rod, whose inner surface is provided with an internal thread, and the internal thread of the push rod is adapted to the external thread of the screw rod; wherein, when the output shaft rotates, the screw rod rotates accordingly, and under the interaction between the internal and external threads, the push rod moves linearly along the axial direction of the screw rod.

[0011] Furthermore, both shoulders on the top of the support plate are provided with grooves, and the support plate is clamped in the sliding groove of the baffle plate by a latch, so that the support plate can slide along the sliding groove of the baffle plate.

[0012] Furthermore, a first connecting rod is provided at the bottom of the baffle, and the push rod and the first connecting rod are connected by a pin; a second connecting rod is provided at the bottom of the support plate, and the support plate is connected to the two arms of the bracket through a pin.

[0013] Furthermore, the first section of the output shaft is a cylinder, the cross section of which is an arc surface, a triangle, a square or a rectangle, and the screw rod is provided with an embedded hole on one side close to the output shaft, and the embedded hole of the screw rod is adapted to the shape of the first section of the output shaft.

[0014] Furthermore, a retaining ring is provided in the bracket, the first section of the output shaft is embedded in the embedding hole of the screw rod, the first section of the screw rod is inserted into the retaining ring, the retaining ring and the screw rod are provided with through holes, and the screw rod and the retaining ring are connected by bolts.

[0015] Furthermore, the motor is a reduction motor.

[0016] Furthermore, a geomagnetic module is provided on the base plate.

[0017] Furthermore, an alarm module is provided on the bottom plate.

[0018] Furthermore, a manual lock is provided on the base plate.

[0019] The beneficial effects of the utility model are as follows: the parking lock of the present application is completed by the sliding connection of the base plate and the support plate at the upper part through the slide groove and the pin shaft to complete the rising and falling, and the drive is achieved by the motor driving the screw rod to push the push rod to complete the retraction and extension of the linear motion to push the base plate and the support plate to rise or fall. The driving structure of this structure is simple and reliable, with low cost, and automatic unlocking and unlocking can be completed by the electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure diagram of this application;

[0021] Figure 2 The bottom plate structure diagram of this application;

[0022] Figure 3 Baffle structure diagram of this application;

[0023] Figure 4 Structural diagram of the support plate of this application;

[0024] Figure 5 Schematic diagram of the hinged bottom plate of this application;

[0025] Figure 6 Schematic diagram of removing the cover plate of this application;

[0026] Figure 7 This is a general schematic diagram of the electric push rod of this application;

[0027] Figure 8 This is a schematic diagram of the explosion of the electric push rod of this application;

[0028] Figure 9 A cross-sectional view of the electric linear actuator of this application;

[0029] Figure 10 This is a schematic diagram of the output shaft structure in this application;

[0030] Figure 11 Schematic diagram of the screw rod structure in this application;

[0031] Figure 12 This is a cross-sectional view of the push rod in this application. DETAILED DESCRIPTION

[0032] In order to make the technical solution and effects of the present invention clearer, the implementation methods of the present application are further explained in detail below.

[0033] like Figure 1 、 2 .3.4.5 shows the overall structure diagram of this application.

[0034] The present application discloses a parking lock comprising a base plate 50, which comprises two side edges and a bottom edge, the bottom edge being used for fixing to the ground. The two side edges are respectively provided with a first pin hole 51, a second pin hole 52, a third pin hole 53, and a fourth pin hole 54. A baffle 60 is hingedly connected to the base plate via the first and second pin holes 51, 52, and a support plate 70 is hingedly connected to the base plate via the third and fourth pin holes 53, 54.

[0035] The baffle includes a panel 61, a first side 63, a second side 64, and a margin 62. The margin is provided with a first connecting rod 67 and a connecting hole 68. The connecting hole 68 is connected to the push rod of the drive device 100 via a latch. A first slide groove 65 and a second slide groove 66 are provided on the first side 63 and the second side 64, respectively.

[0036] The rear edge of the support plate is provided with a second connecting rod 72 and a through hole 71, and the support plate is connected to the bracket of the driving device 100 through the through hole and the latch. The upper side of the support plate is also provided with a first groove 73 and a second groove 74. The support plate is inserted into the two grooves through the pin shaft and then inserted into the corresponding slide groove of the baffle.

[0037] The first connecting rod and the second connecting rod are both bent arm structures, which can pull down or push up the baffle and the support plate under the action of horizontal pulling force or pushing force.

[0038] When the driving device 100 is driven and the baffle and support plate are stacked together, the parking lock is locked. When the driving device is driven, that is, when the push rod extends outward, the first connecting rod 67 moves toward the center of the base plate, pulling the base plate upward and gradually raising it. After reaching a certain position, the bracket of the driving device also pulls the second connecting rod of the support rod. The second connecting rod gradually raises the support plate, and the connecting pins on the two plates also gradually slide upward. When the pins reach the top, the baffle is locked with the support plate. When the parking lock is locked and needs to be unlocked, the push rod of the driving device retracts inward to pull the baffle, and the bracket also pulls the support plate. When the support plate slides downward to a certain position, the baffle and support plate begin to move downward until they are stacked, completing the unlocking. Here, the driving device is equivalent to a powered spring. When it retracts, the two plates stack up, and when it extends, the two plates stand up, thus completing the locking and unlocking of the parking lock.

[0039] It should be pointed out here that although the rocker arm assembly in this application is composed of a sliding baffle and a support plate, as an alternative, the use of a baffle rod and a support rod can also achieve the function of this application. This is a simple transformation and still falls within the scope of protection of this application.

[0040] like Figure 6 As shown, the overall structure of this application continues to be explained.

[0041] Several functional components are also located on the baseplate. A battery assembly 58 is located on the baseplate and provides power to the drive unit, among other things. A control circuit board 59 controls the drive unit's motor and auxiliary components. An alarm 56, for this application, provides an audible alarm to indicate when the parking lock is unlocked or released. A geomagnetic module 57 detects the presence of a vehicle above the parking lock to prevent damage to the vehicle when unlocking.

[0042] like Figure 7 and Figure 8 and Figure 9 As shown, the overall structure of the electric push rod of the present application is specifically described.

[0043] The electric push rod of the present application is driven by a motor 10 and a reducer 11. The reducer 11 increases the driving torque and improves the driving ability of the motor. Of course, it can also be driven directly by the motor 10. The reducer 11 is generally composed of a plurality of meshing gears. The motor 10 and the reducer 11 are fixed to a bracket 12.

[0044] Output shaft 14 is fixedly connected to the center of output gear 13 of reducer 11. When output gear 13 rotates, output shaft 14 rotates accordingly. The first section of output shaft 14 is embedded in screw rod 30. The first section of output shaft 14 is irregularly shaped, and it is compatible with the irregularly shaped hole of screw rod 30. This irregular shape allows screw rod 30 to rotate with output shaft 14 without sliding in the radial direction.

[0045] The outer periphery of the screw rod 30 is provided with a screw rod sleeve 35 .

[0046] The inner surface of the push rod 40 is provided with an internal thread 42, and the other end is provided with a push rod hole 41, which is used to connect with the baffle of the parking lock. The surface of the screw rod 30 is provided with an external thread 31, which is adapted to the internal thread 42 of the push rod.

[0047] A retaining ring 20 is positioned within the bracket 12, through which the output shaft 14 and the screw rod 30 pass. The retaining ring 20 is provided with a retaining ring hole 21, and the screw rod 30 is provided with a screw rod hole 32. A bolt 22 passes through the retaining ring hole 21 and the screw rod hole 32 and abuts against the output shaft 14. Together, the retaining ring 20 and the bolt 22 secure the screw rod 30 axially, preventing axial movement of the screw rod 30.

[0048] The baffle 23 is sleeved on the outside of the screw rod 30, located outside the bracket 12, and fixed to the bracket by screws. The screw rod sleeve 35 and the baffle 23 are integrally arranged.

[0049] like Figure 10 As shown, it is a schematic diagram of the output shaft of this application, Figure 11 This is a schematic diagram of the structure of the screw rod in this application.

[0050] The output shaft 14 and the screw rod 30 cooperate and are described here together.

[0051] The output shaft 14 has a raised ring 142 in the middle, and the second section 141 and the first section 143 are cylindrical with a horizontal section 144 having an arc-shaped cross section.

[0052] The second section of the screw rod 30 is provided with an external thread 31, which is adapted to the internal thread of the push rod 40. The first section of the screw rod 30 is provided with a special-shaped hole 33, which is adapted to the shape of the first section 143 of the output shaft. For specific matching, please refer to the attached Figure 9 When the output shaft 14 rotates, the screw rod 30 also rotates. This adaptive connection between the screw rod 30 and the output shaft 14 ensures that when the two rotate, the screw rod 30 does not slide radially along the output shaft 14, but rotates together. The first section 143 of the output shaft 14 can be shaped in an irregular manner, such as a rectangle, triangle, or semicircle, and the screw rod's shaped hole 33 is adapted to this shape. The two cooperate to ensure that the screw rod 30 does not slide radially along the output shaft 14.

[0053] The first section of the screw rod 30 is also provided with a thread 34 , and the thread 34 is located on the inner surface of the retaining ring 23 .

[0054] The screw rod 30 is also provided with a screw rod hole 32. When assembled, the screw rod hole 32 is aligned with the retaining ring 21 of the retaining ring 20, so that the bolt 22 passes through the two through holes and directly reaches the output shaft 14. Since the retaining ring 20 is provided in the bracket 12, the screw rod 30 is prevented from being displaced in the axial direction when it rotates.

[0055] like Figure 12 , which is a schematic structural diagram of the push rod 40 of the present application.

[0056] A push rod hole 41 is provided at one end of the push rod 40, which is used to connect to the baffle, and an internal thread 42 is provided inside the other end, which is adapted to the external thread 31 of the screw rod 30. When the screw rod 30 rotates, under the action of the thread, the push rod 40 moves in an axial straight line, and the direction of rotation determines whether the push rod 40 moves forward or backward.

[0057] In this embodiment, one end of the output shaft 14 is designed to drive the screw to rotate, and is also used to drive the other arm to rotate. As a different series design, the output shaft 14 can be designed to have screws connected at both ends, and the screw drives the push rod to move linearly, thereby pushing the baffle and support plate to rotate.

[0058] After receiving the control signal, the motor begins to rotate the output shaft 14, which in turn drives the screw 30. During this rotation, the external threads 31 on the screw 30 interact with the internal threads 42 on the push rod 40, causing the push rod 40 to move linearly along the screw 30. This linear motion of the push rod 40 further drives the connecting rod, ultimately causing the rocker arm to rotate about its fixed point, thus locking or unlocking the parking lock.

[0059] This design not only solves the stability and precision issues of traditional parking locks, but also reduces manufacturing and maintenance costs by simplifying the transmission structure and improving transmission efficiency. Furthermore, the more robust connection between the push rod and the rocker arm ensures greater stability and durability when subjected to external forces.

[0060] In summary, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification. All equivalent changes and modifications of the shape, structure, characteristics and spirit described in the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A parking lock, characterized by: base plate; A baffle, the baffle being hinged to the bottom plate, and having sliding grooves on both sides of the baffle; A support plate, the support plate being hinged to the bottom plate and slidably connected to a sliding groove of the baffle; A driving device, wherein the driving device is hinged to the baffle and the support plate respectively; Among them, when the driving device contracts, the baffle and the support plate gradually slide down until they overlap, and when the driving device extends, the baffle and the support plate gradually rise until they are supported, thereby completing the unlocking and locking actions of the parking lock.

2. The parking lock according to claim 1, characterized in that: The driving device includes a motor, wherein the motor is provided with an output shaft; a bracket, the motor is fixed to the bracket, and the bracket includes two arms; A screw rod, the screw rod is connected to the output shaft and is provided with an external thread; A push rod, wherein the inner surface of the push rod is provided with an internal thread, and the internal thread of the push rod is adapted to the external thread of the screw rod; When the output shaft rotates, the screw shaft rotates accordingly, and under the interaction between the internal and external threads, the push rod moves linearly along the axial direction of the screw shaft.

3. The parking lock according to claim 2, characterized in that: The two shoulders on the top of the support plate are both provided with grooves, and the support plate is clamped in the sliding groove of the baffle plate by a latch, so that the support plate can slide along the sliding groove of the baffle plate.

4. The parking lock according to claim 3, characterized in that: A first connecting rod is provided at the bottom of the baffle, and the push rod and the first connecting rod are connected by a pin; A second connecting rod is provided at the bottom of the support plate, and the support plate is connected to the two arms of the bracket through a pin shaft.

5. The parking lock according to claim 2, characterized in that: The first section of the output shaft is a cylinder with a cross section of an arc surface, a triangle, a square or a rectangle. The screw rod is provided with an embedded hole on one side close to the output shaft, and the embedded hole of the screw rod is adapted to the shape of the first section of the output shaft.

6. The parking lock according to claim 5, characterized in that: A retaining ring is arranged in the bracket, the first section of the output shaft is embedded in the embedding hole of the screw rod, the first section of the screw rod is inserted into the retaining ring, the retaining ring and the screw rod are provided with through holes, and the screw rod and the retaining ring are connected by bolts.

7. The parking lock according to claim 2, characterized in that: The motor is a reduction motor.

8. The parking lock according to claim 1, characterized in that: The bottom plate is provided with a geomagnetic module.

9. The parking lock according to claim 1, characterized in that: An alarm module is arranged on the bottom plate.

10. The parking lock according to claim 1, characterized in that: A manual lock is provided on the bottom plate.

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