Flat car position lock

Abstract

The utility model relates to the technical field of parking space locks, in particular to a flat car parking space lock. The utility model provides a flat car parking lock which solves the technical problem that a parking lock in the prior art does not have an overload protection function. A flat car position lock comprises a lock seat. The baffle is rotationally connected to the lock seat; the driving assembly is used for driving the baffle to rotate relative to the lock seat; wherein the driving assembly comprises a worm and a worm gear, the worm is rotatably arranged on the lock seat, the worm gear is rotatably arranged on the lock seat and meshed with the worm, and the worm gear drives the baffle through a clutch; by arranging the clutch and the overload protector, when the baffle is collided by a vehicle, overload protection is achieved through the overload protector, collision acting force borne by the baffle cannot be completely transmitted to the worm gear through the clutch and the overload protector, and therefore the driving assembly does not need to bear too large acting force when the baffle is collided, and the driving assembly is not prone to being damaged.

Description

Technical Field

[0001] This utility model relates to the field of parking lock technology, and in particular to a flat parking lock. Background Technology

[0002] A parking lock is a mechanical device used to prevent unauthorized vehicles from parking in a parking space. Parking locks are typically installed at the middle third of the entrance to the parking space, and the installation requires a flat cement surface.

[0003] Existing parking locks do not have overload protection. When a vehicle collides with one, it can easily cause damage to the vehicle or the parking lock, resulting in economic losses for the user.

[0004] Therefore, existing parking space locks have the technical problem of lacking overload protection. Summary of the Invention

[0005] The present invention provides a flat parking space lock that solves the technical problem that existing parking space locks lack overload protection.

[0006] Some implementation schemes for solving the above-mentioned technical problems include:

[0007] A flatbed parking space lock, including a lock base;

[0008] A baffle, which is rotatably connected to the lock seat;

[0009] And a drive assembly for rotating the baffle relative to the lock seat;

[0010] The drive assembly includes a worm gear rotatably mounted on the lock seat and a worm wheel rotatably mounted on the lock seat and meshing with the worm gear, wherein the worm wheel drives the baffle through a clutch;

[0011] The clutch includes a first part mounted on the baffle and a second part slidably connected to the worm gear. The first part is provided with a tooth groove, and the second part is provided with teeth that cooperate with the tooth groove and transmit power. The clutch also includes an elastic element that pushes the second part to make the teeth cooperate with the tooth groove.

[0012] An overload protector is provided between the first part and the second part.

[0013] Preferably, the baffle is rotatably connected to the lock seat via a rotating shaft, the first part is fixed to the rotating shaft, the worm gear is provided with a shaft body, the shaft body is coaxially arranged with the rotating shaft and the worm gear, and the second part is slidably connected to the shaft body.

[0014] Preferably, the elastic element is a spring, which is sleeved on the shaft, with one end of the elastic element fixed to the shaft and the other end of the elastic element in contact with the second part.

[0015] Preferably, there are a plurality of grooves, which are evenly distributed along the circumference of the first portion, and there are a plurality of teeth, which are evenly distributed along the circumference of the second portion.

[0016] Preferably, the overload protector is an overload protection plate, one end of the overload retainer is fixed to the first part, and the other end of the overload protector is fixed to the second part.

[0017] Preferably, one end of the overload protector is pinned to the first part, and the other end of the overload protector is pinned to the second part.

[0018] Preferably, the overload protector includes a connecting part and an overload protection part. The connecting part is provided at both ends of the overload protection part, and the connecting part is provided with a pin hole. The overload protection part and the connecting part are integral structures, and the cross-sectional area of ​​the overload protection part is smaller than the cross-sectional area of ​​the connecting part.

[0019] Preferably, the drive assembly further includes a motor that drives the worm gear to rotate via a coupling.

[0020] Preferably, the lock seat is provided with a drive control box, the drive control box has a drive control chamber, and the drive assembly is disposed in the drive control chamber.

[0021] Preferably, the lock seat is further provided with a sensor control box, which forms a sensor control cavity. The sensor control cavity is provided with a sensor for detecting the vehicle, and a controller is also provided in the sensor control cavity. The sensor communicates with the controller, and the controller controls the drive component according to the parameters detected by the sensor.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] By incorporating a clutch and an overload protector, when the baffle is struck by a vehicle, the overload protector provides overload protection. The impact force borne by the baffle cannot be fully transmitted to the worm gear through the clutch and the overload protector, thus ensuring that the drive assembly does not have to bear excessive force when the baffle is struck, and the drive assembly is less likely to be damaged.

[0024] By sliding the second part to the worm gear and placing the overload protector between the first and second parts, when the baffle is subjected to an impact force, the overload protector breaks due to the impact force. At this time, the elastic element contracts, and the second part separates from the first part, thereby disengaging the clutch. The impact force borne by the baffle will not damage the worm gear, making the drive assembly less prone to damage.

[0025] By utilizing a worm and worm wheel to drive the baffle, the worm wheel and worm have self-locking characteristics. After the worm wheel drives the baffle to rotate a certain angle, the worm wheel and worm achieve self-locking, meaning the worm wheel cannot drive the worm to rotate. This positions the baffle at that angle, and eliminates the need for a separate locking assembly for the baffle. This simplifies the structure of the flatbed parking lock and reduces its operating cost. Attached Figure Description

[0026] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.

[0027] Figure 1 This is a diagram showing the baffle in the unlocked state.

[0028] Figure 2 This is a schematic diagram showing the baffle in the locked state. Figure 1 , Figure 2 For clarity, the cover of the drive assembly is omitted.

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0030] Figure 4 This is a top view showing the arrangement of the drive components within the drive control cavity.

[0031] Figure 5 This is a schematic diagram of an overload protector.

[0032] Figure 6 This is a schematic diagram of what happens when an overload protector breaks.

[0033] As shown in the figure:

[0034] 1. Lock seat.

[0035] 2. Baffle, 21. Rotating shaft.

[0036] 3. Drive assembly; 31. Worm; 32. Worm wheel; 33. Clutch; 331. First part; 332. Second part; 333. Elastic element; 34. Overload protector; 341. Connecting part; 342. Overload protection part; 343. Pin hole; 35. Shaft; 36. Motor; 37. Coupling. Detailed Implementation

[0037] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0038] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0039] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Reference Figures 1 to 6 As shown, a flatbed parking space lock includes a lock base 1;

[0041] Baffle 2, which is rotatably connected to lock seat 1;

[0042] and a drive assembly 3 that drives the baffle 2 to rotate relative to the lock seat 1;

[0043] The drive assembly 3 includes a worm gear 31 rotatably disposed on the lock seat 1 and a worm wheel 32 rotatably disposed on the lock seat 1 and meshing with the worm gear 31. The worm wheel 32 drives the baffle 2 through a clutch 33.

[0044] The clutch 33 includes a first part 331 mounted on the baffle 2 and a second part 332 slidably connected to the worm gear 32. The first part 331 is provided with a tooth groove, and the second part 332 is provided with a tooth that engages with the tooth groove and transmits power. The clutch 33 also includes an elastic element 333 that pushes the second part 332 to engage the tooth with the tooth groove.

[0045] An overload protector 34 is provided between the first part 331 and the second part 332.

[0046] In some embodiments, under normal operating conditions, the second part 332 contacts the first part 331 under the push of the elastic member 333, that is, the groove and the tooth engage. At the same time, one end of the overload protector 34 is fixed to the first part 331, and the other end of the overload protector 34 is fixed to the second part 332. The first part 331 and the second part 332 will not separate, and power can be transmitted normally.

[0047] When the baffle 2 is subjected to an impact force, the overload protector 34 breaks under the large impact force. At this time, the first part 331 and the second part 332 will not be positioned by the overload protector 34. The impact force overcomes the elastic force of the elastic element 333, causing the elastic element 333 to contract. The second part 332 slides away from the first part 331, and the first part 331 and the second part 332 separate. This can prevent the impact force from damaging the worm gear 32, worm 31 and other structures of the drive assembly 3.

[0048] Reference Figures 1 to 6 As shown, in some embodiments, the baffle 2 is rotatably connected to the lock seat 1 via a rotating shaft 21, the first part 331 is fixed to the rotating shaft 21, the worm gear 32 is provided with a shaft 35, the shaft 35 is coaxially arranged with the rotating shaft 21 and the worm gear 32, and the second part 332 is slidably connected to the shaft 35.

[0049] In some embodiments, the first part 331 can be installed on the rotating shaft 21 by a key connection, or the first part 331 can be an integral structure with the rotating shaft 21.

[0050] In some embodiments, the shaft 35 and the worm gear 32 can be an integral structure.

[0051] In some embodiments, the second part 332 can be mounted on the shaft 35 by a key connection. A keyway can be provided on the shaft 35. The keyway is provided along the axial direction of the shaft 35, and the length of the key body provided on the second part 332 is less than the length of the keyway, so as to enable the second part 332 to slide along the shaft 35.

[0052] Understandably, when the diameter of the switch 35 is small, the key body can be set on the switch 35, and a keyway can be set in the second part 332 so that the key body can improve the strength of the switch 35.

[0053] In some embodiments, the worm gear 32 can be rotatably connected to the lock seat 1 via bearings. For example, the worm gear 32 extends from both ends of the shaft 35, and bearings are provided on the shaft 35. The shaft 35 may be provided with at least two bearings, and bearings are provided on both sides of the worm gear 32. The bearings are then mounted on the lock seat 1 via bearing seats, thereby realizing the installation of the worm gear 32 on the lock seat 1.

[0054] Deep groove ball bearings are typically used as bearings.

[0055] In some embodiments, the worm gear 31 can also be mounted on the lock seat 1 via a bearing. Similarly, the bearing for mounting the worm gear 31 can be mounted on the lock seat 1 via a bearing housing, and the bearing housing can be fixed to the lock seat 1 with screws.

[0056] In some embodiments, the elastic element 333 is a spring, the elastic element 333 is sleeved on the shaft 35, and one end of the elastic element 333 is fixed to the shaft 35, while the other end of the elastic element 333 contacts the second part 332.

[0057] For example, one end of the elastic element 333 can be directly welded to the shaft 35.

[0058] Alternatively, when the length of the elastic element 333 is not specifically limited, one end of the elastic element 333 can abut against the worm gear 32, and the other end of the elastic element 333 can contact the second part 332. This solution eliminates the need to fix the elastic element 333. The elastic element 333 is positioned by the distance between the second part 332 and the worm gear 32.

[0059] Reference Figures 1 to 6 As shown, in some embodiments, there are a plurality of tooth grooves, and the tooth grooves are evenly arranged circumferentially along the first portion 331; there are a plurality of teeth, and the teeth are evenly arranged circumferentially along the second portion 332.

[0060] In some embodiments, the overload protector 34 is an overload protection plate, one end of the overload retainer is fixed to the first portion 331, and the other end of the overload protector 34 is fixed to the second portion 332.

[0061] In some embodiments, one end of the overload protector 34 is pinned to the first portion 331, and the other end of the overload protector 34 is pinned to the second portion 332.

[0062] In some embodiments, the pin can conveniently secure the overload protector 34 to the first portion 331 and the second portion 332. Since both the first portion 331 and the second portion 332 need to rotate, the pin should have a pin head to prevent the overload protector 34 from disengaging from the pin.

[0063] In some embodiments, the overload protector 34 includes a connecting portion 341 and an overload protection portion 342. The connecting portion 341 is provided at both ends of the overload protection portion 342. The connecting portion 341 is provided with pin holes 343. The overload protection portion 342 and the connecting portion 341 are integrally formed. Furthermore, the cross-sectional area of ​​the overload protection portion 342 is smaller than the cross-sectional area of ​​the connecting portion 341.

[0064] Reference Figures 1 to 6 As shown, in some embodiments, the overload protector 34 can be fixed to the first part 331 and the second part 332 by any detachable connection method. For example, the overload protector 34 can also be fixed to the first part 331 and the second part 332 by threads. For example, both the first part 331 and the second part 332 are provided with screws. After the overload protector 34 is sleeved on the screws, the overload protector 34 is fixed to the first part 331 and the second part 332 by nuts installed on the screws.

[0065] In some embodiments, the drive assembly 3 further includes a motor 36, which drives the worm gear 31 to rotate via a coupling 37.

[0066] In some embodiments, the motor 36 can be fixed to the lock seat 1 by the motor 36 bracket.

[0067] In some embodiments, the coupling 37 may be a diaphragm coupling 37.

[0068] In some embodiments, the lock base 1 is provided with a drive control box, the drive control box has a drive control chamber, and the drive assembly 3 is disposed in the drive control chamber.

[0069] The lock base 1 is also provided with a sensor control box, which forms a sensor control cavity. The sensor control cavity is provided with a sensor for detecting vehicles, and a controller is also provided in the sensor control cavity. The sensor communicates with the controller, and the controller controls the drive component 3 according to the parameters detected by the sensor.

[0070] The drive control box and the sensor control box can be located at opposite ends of the baffle 2.

[0071] In some embodiments, both the drive control box and the sensor control box may include a housing, with the drive assembly 3, the sensor, and the controller respectively housed within different housings.

[0072] Reference Figures 1 to 6 As shown, in some embodiments, the baffle 2 may include a frame, with a pivot 21 disposed on the frame. The frame is provided with a steel shaft, which is fitted with a rubber sleeve to prevent the pivot from damaging the vehicle's paint layer. The frame may also be provided with a plate, which is used to cover the steel shaft when the baffle 2 is in a horizontal position, making the flat lock more aesthetically pleasing.

[0073] In some embodiments, the flatbed parking lock includes a locked state, in which the baffle 2 is raised; the flatbed parking lock also includes an unlocked state, in which the baffle 2 is retracted and placed in a horizontal position.

[0074] In the unlocked state, the vehicle wheels are not subjected to any pressure load on the mechanical structure through the flatbed parking lock. When the vehicle parks in the parking space, the sensor detects that a vehicle is parked. After the vehicle is in the parking space, the barrier 2 rises and enters the locked state. According to the height of the vehicle chassis, a detector is added to the barrier 2. After the detector touches the vehicle chassis, the controller controls the barrier 2 to stop rising and retract a short distance. At this time, the worm gear 31 and worm wheel 32 maintain the position of the barrier 2.

[0075] If the vehicle forces its way through the barrier after parking, or is hit by an external force on the baffle 2, if the force is less than the safety force, the overload protection plate will not break and the parking lock will remain locked. When the external force is greater than the breaking force of the overload protection plate, the overload protection plate will break and the first part 331 and the second part 332 of the clutch 33 will separate.

[0076] After the impact force is removed, the second part 332 resets and contacts the first part 331 under the action of the spring, so that the flatbed parking space lock can still achieve protection under the action of external force in the working state.

[0077] After the protective plate is damaged, the clutch 33 resets and applies pressure due to spring force, and the baffle 2 of the flatbed parking lock can still be lowered and raised. At this time, the flatbed parking lock still has a certain locking function, but it cannot prevent vehicles from rushing in. If it is necessary to restore the locking function, a new protective plate needs to be replaced. The deformation force can be determined according to parameters such as the material and thickness of the protective plate.

[0078] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.

[0079] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.

[0080] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, these details are still within the scope of the subject matter technical solution of this utility model without departing from it.

Claims

1. A flatbed parking space lock, characterized in that: The lock includes a lock seat (1); a baffle (2) rotatably connected to the lock seat (1); and a drive assembly (3) for driving the baffle (2) to rotate relative to the lock seat (1); wherein the drive assembly (3) includes a worm (31) rotatably disposed on the lock seat (1) and a worm wheel (32) rotatably disposed on the lock seat (1) and meshing with the worm (31), the worm wheel (32) driving the baffle (2) through a clutch (33); the clutch (33) includes components mounted on the lock seat (1). The first part (331) of the baffle (2) and the second part (332) slidably connected to the worm gear (32) are provided with a tooth groove, and the second part (332) is provided with a tooth that engages with the tooth groove and transmits power. The clutch (33) also includes an elastic element (333) that pushes the second part (332) to engage the tooth with the tooth groove. An overload protector (34) is provided between the first part (331) and the second part (332).

2. The flatbed parking space lock according to claim 1, characterized in that: The baffle (2) is rotatably connected to the lock seat (1) via a rotating shaft (21). The first part (331) is fixed to the rotating shaft (21). The worm gear (32) is provided with a shaft (35). The shaft (35) is coaxially arranged with the rotating shaft (21) and the worm gear (32). The second part (332) is slidably connected to the shaft (35).

3. The flatbed parking space lock according to claim 2, characterized in that: The elastic element (333) is a spring, the elastic element (333) is sleeved on the shaft (35), and one end of the elastic element (333) is fixed to the shaft (35), and the other end of the elastic element (333) is in contact with the second part (332).

4. The flatbed parking space lock according to any one of claims 1 to 3, characterized in that: There are a plurality of grooves, and the grooves are evenly arranged circumferentially along the first part (331). There are a plurality of teeth, and the teeth are evenly arranged circumferentially along the second part (332).

5. The flatbed parking space lock according to claim 1, characterized in that: The overload protector (34) is an overload protection plate. One end of the overload protector is fixed to the first part (331), and the other end of the overload protector (34) is fixed to the second part (332).

6. The flatbed parking space lock according to claim 5, characterized in that: One end of the overload protector (34) is pinned to the first part (331), and the other end of the overload protector (34) is pinned to the second part (332).

7. The flatbed parking space lock according to claim 6, characterized in that: The overload protector (34) includes a connecting part (341) and an overload protection part (342). The connecting part (341) is provided at both ends of the overload protection part (342). The connecting part (341) is provided with pin holes (343). The overload protection part (342) and the connecting part (341) are an integral structure. Furthermore, the cross-sectional area of ​​the overload protection part (342) is smaller than the cross-sectional area of ​​the connecting part (341).

8. The flatbed parking space lock according to claim 1, characterized in that: The drive assembly (3) also includes a motor (36) that drives the worm (31) to rotate via a coupling (37).

9. The flatbed parking space lock according to claim 1, characterized in that: The lock seat (1) is provided with a drive control box, the drive control box has a drive control chamber, and the drive assembly (3) is disposed in the drive control chamber.

10. The flatbed parking space lock according to claim 1, characterized in that: The lock seat (1) is also provided with a sensor control box, and a sensor control cavity is formed inside the sensor control box. A sensor for detecting the vehicle is provided inside the sensor control cavity. A controller is also provided inside the sensor control cavity. The sensor communicates with the controller. The controller controls the drive assembly (3) according to the parameters detected by the sensor.

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