Ground lock and management system

Abstract

The utility model discloses a ground lock and a management system, and the ground lock comprises a base body; the lock part is rotationally mounted on the base body through a horizontal overturning shaft; the worm and gear mechanism is mounted on the base body, and a matched worm gear is connected with the turnover shaft; the power machine is provided with an output shaft, a worm of the worm and gear mechanism is connected with the output shaft in the circumferential direction, and the worm has the axial degree of freedom relative to the output shaft and is limited in a preset floating interval in the axial direction; and the elastic component provides axial force acting on the worm in the direction far away from the output shaft, so that the worm is biased in the direction far away from the output shaft in the floating section. According to the parking lock structure, the reliability of the parking lock is relatively good.

Description

Technical Field

[0001] The utility model relates to a ground lock, and also relates to a management system equipped with the ground lock. Background Art

[0002] The ground lock is mainly used as a parking space ground lock, but is not limited to the parking space ground lock. The ground lock can be defined as a mechanical device installed on the ground and having a lifting lock part. There are relatively many types of the lifting lock parts, and one of them is a lock part that realizes lifting based on rotation (swinging). After the lock part is lifted, it is in the working state of the ground lock. The lock part is a working component for blocking vehicles, and is prone to being impacted by the vehicle wheels or the vehicle frame in the working state. Currently, there are mainly three ways to solve the damage or damage of the ground lock caused by the impact. The first is to adopt an integrated structure. In the integrated structure, the lock part is a lock arm that moves up and down in the vertical direction. The lock arm is included in a lifting assembly, which usually includes a motor and a transmission mechanism. The transmission mechanism is used to convert the rotational motion of the motor into the up and down motion of the lock arm. Furthermore, a rubber pad, for example, is provided above the lock arm to directly receive the impact. The direction of the impact force borne by this method is often inconsistent with the movement direction of the lock part. Under more impact force-bearing conditions, the direction of the impact force is basically perpendicular to the movement direction of the lock part. Although it can effectively protect the transmission part, it is easy to cause damage or damage to the seat and shell of the ground lock.

[0003] The second way is to directly make the ground lock with components having relatively high strength. This method is simple and direct. However, in addition to considering its own strength, the ground lock also needs to consider the connection strength between the ground lock and the ground. In more applications, the actual strength requirement for the ground lock is not high. That is, under normal conditions, the strength of the ground lock is lower than that of, for example, the vehicle chassis, so it is usually not sufficient to cause damage to the vehicle chassis. Currently, the improvement of the ground lock by strengthening itself is mainly reflected in that the shell part of the ground lock does not produce plastic deformation when bearing vehicle rolling, rather than on the blocking actuation part.

[0004] The third way can be understood as an avoidance type. Since it can identify the force such as impact received and control the state of the lock part, it can be called an intelligent parking space lock. In this form, the component for blocking the vehicle is a swing arm. When the swing arm of the intelligent parking space lock is impacted, the correspondingly arranged sensor will monitor the force received by the swing arm. If the monitored force is greater than the set value, the swing arm will drop and rise again after a few seconds. This method actually deviates from the original design requirements of the ground lock. Although people will consciously avoid the collision between the vehicle and the ground lock during the use process, if the vehicle owner realizes that the collision will not cause damage to the vehicle and can break free from the restraint of the ground lock, the management of the parking space equipped with such a ground lock will become uncontrollable.

[0005] In view of this, the current research and development focus should be placed on avoiding or reducing the damage of the ground lock while not causing the vehicle to break free from the restraint of the ground lock. Therefore, a ground lock with a flexible transmission component is proposed in Chinese Patent Document CN221398759U. By means of the "flexibility" of the flexible transmission component, the blocking plate component of the ground lock is buffered when impacted by a vehicle, for example, to reduce the damage or breakage of the power component or transmission component. The flexible transmission member used in this patent document should be a steel strand. Its main purpose is to extend the power for driving the opening and closing of the blocking plate component to a position relatively far from the ground lock through the steel strand, for example, so as to avoid the ground lock from failing after being flooded. The flexible transmission member itself has a certain ability to resist rigid impact. At the same time, the drive shaft sleeve of the blocking plate component is installed on the drive rotating shaft through the first elastic reset member. Although it is not mentioned in this patent document whether the first elastic reset member has the ability to provide buffering when the blocking plate component is impacted, the inventor believes that the first elastic reset member has a certain buffering ability in the reverse reset direction. It should be known that a mechanism is a collection of components with definite motion relationships. The existence of the first elastic reset member can protect the blocking plate component. However, the inventor also believes that when the blocking plate component moves, the drive mechanism for driving the blocking plate component will also move. This passive movement of the drive mechanism is likely to cause damage or breakage of the drive mechanism and the power machine. Summary of the Utility Model

[0006] Taking into comprehensive consideration that when facing impacts from vehicles, for example, the locking part should not be rigidly arranged and should not have too large a stroke. Therefore, the purpose of the present utility model is to provide a ground lock with relatively good structural reliability, and the present utility model also provides a management system equipped with this ground lock.

[0007] According to the first aspect of the embodiments of the present utility model, a ground lock is provided, including:

[0008] A base;

[0009] A locking part, rotatably installed on the base through a horizontal turning shaft;

[0010] A worm and worm gear mechanism, installed on the base, and the worm gear is connected to the turning shaft;

[0011] A power machine, which has an output shaft. The worm of the worm and worm gear mechanism is circumferentially connected to the output shaft, and the worm has an axial degree of freedom relative to the output shaft and is axially limited within a predetermined floating range; and

[0012] An elastic member, providing an axial force in the direction away from the output shaft acting on the worm, so that the worm is biased in the direction away from the output shaft within the floating range.

[0013] Optionally, the connection between the output shaft and the worm is a profile connection, a spline connection, a sliding key connection or a flat key connection.

[0014] Optionally, the elastic member is a spring, which is sleeved on the corresponding worm or a given sleeve. One end of the spring is in sliding or rolling fit with the worm teeth of the worm, and the other end is supported on a given static component or structure.

[0015] Optionally, the worm and worm gear mechanism is arranged in a transmission box;

[0016] The elastic member is correspondingly located in the transmission box.

[0017] Optionally, the worm gear shaft of the worm gear is connected to the turnover shaft by a coupling or fixed as a whole.

[0018] Optionally, the coupling is an elastic coupling.

[0019] Optionally, the turnover shaft and / or the locking part is equipped with a reset device.

[0020] Optionally, both ends of the turnover shaft are installed on the base through predetermined bearing seats;

[0021] One chamber is provided at each end of the turnover shaft for adaptation. One of the chambers is a power chamber equipped with a power machine, and the other chamber is a secondary chamber.

[0022] Optionally, the sealing level of at least the power chamber is not lower than IP57.

[0023] Optionally, at least an image and / or video acquisition device for license plate recognition is provided;

[0024] The image and / or video acquisition device is arranged in the power chamber or the secondary chamber;

[0025] Correspondingly, the power chamber or the secondary chamber provided with the image and / or video acquisition device has a window.

[0026] Optionally, the power chamber is provided with a storage battery and / or externally connected to a power source to supply power to the ground lock electrical equipment.

[0027] Optionally, a limiting device for limiting the in-place stop point of the locking part is provided.

[0028] Optionally, the limiting device is a rigid limiting part or a limiting part with a flexible body installed on the turnover shaft, the locking part or the base.

[0029] Optionally, when the rigid limiting part is arranged on the turnover shaft, it is arranged at 1 to 3 positions out of a total of three positions at both ends and the middle of the turnover shaft.

[0030] Optionally, the rigid limiting part is an eccentric plate installed on the turning shaft. During the turning stroke of the locking part, the eccentric plate disengages from a predetermined fixed part and engages indirectly with the fixed part at the limiting position.

[0031] Optionally, the locking part is a turning plate installed on the turning shaft. The turning plate is a strip plate, and the turning shaft is located at the first plate edge of the turning plate along the strip direction.

[0032] Optionally, when the turning plate is in the retracted state, the turning shaft is located below the turning plate, and the second plate edge of the turning plate opposite to the first plate edge is supported on the base body.

[0033] Optionally, a roller shaft is provided at the second plate edge.

[0034] Optionally, a slope panel is provided on the second side of the turning shaft;

[0035] Correspondingly, when the turning plate is in the retracted state, a double-slope structure with the ridge above the turning shaft is formed between the turning plate and the slope panel.

[0036] According to the second aspect of the embodiment of the present invention, a management system is provided for managing a parking space through the ground lock described in the first aspect of the embodiment of the present invention.

[0037] In the ground lock provided in the embodiment of the present invention, it includes a base body and a locking part installed on the base body through a turning shaft. That is, the ground lock based on the embodiment of the present invention belongs to a flip-type ground lock. Furthermore, in the embodiment of the present invention, a worm and worm gear mechanism capable of achieving a large transmission ratio is used as the transmission mechanism, which can output a relatively large torque under the condition of a relatively small power of the power machine. And when the worm is subjected to a reaction force, it is relatively difficult to reverse, so that the state of the locking part can be maintained well. That is, the worm and worm gear mechanism has a certain self-locking function. However, when the worm is subjected to a relatively large reaction force, the worm will generate a relatively large axial force on the worm, which may damage or damage the power machine. In the embodiment of the present invention, the connection between the power machine and the worm and worm gear mechanism adopts a circumferential connection while retaining the freedom degree of the worm in its axial direction, so that the worm has a certain floating space in the axial direction of the worm. Furthermore, an elastic component is provided to provide an opposite elastic force when the worm moves axially under the reaction force, thereby forming a buffer and a reset. Thus, under the condition of relatively small change in the state of the locking part, a certain buffer is provided, that is, it can not only meet the requirements for locking a vehicle, etc., but also effectively protect the power machine, and has relatively good reliability as a whole. Description of the Drawings

[0038] Figure 1 It is a schematic top view structure diagram of the ground lock in the retracted state in an embodiment (the power cabin is in the open state in the figure).

[0039] Figure 2 ForFigure 1 A-A sectional view (2:1 magnification).

[0040] Figure 3 is Figure 2 Enlarged view of part I of

[0041] Figure 4 is Figure 1 B-B sectional view of

[0042] Figure 5 is Figure 1 C-C sectional view of

[0043] Figure 6 is Figure 5 Enlarged view of part II of

[0044] Figure 7 is Figure 1 F-F sectional view of

[0045] Figure 8 Schematic diagram of the structure between the turning plate and the turning power part in an embodiment

[0046] Figure 9 Schematic top view of the working state of the ground lock in an embodiment (the power cabin is in the open state in the figure).

[0047] Figure 10 is Figure 9 H-H sectional view (2:1 magnification) of

[0048] Figure 11 Schematic diagram of the internal structure of the power cabin in an embodiment

[0049] Figure 12 is Figure 11 Enlarged view of part III of

[0050] In the figure: 1. Seat shell, 2. Mounting hole, 3. Sensor, 4. Transmission box, 5. Worm, 6. Torsion spring, 7. Rectangular spring, 8. Hexagon head screw, 9. Power assembly, 10. Eccentric plate, 10’. Eccentric plate (corresponding to the working state of the turning plate), 11. Turning shaft, 12. Turning plate, 13. Roller shaft, 14. Sub-cabin, 15. Slope panel, 16. Conduit, 17. Rectangular spring, 19. Seat plate, 20. Countersunk head screw, 21. Worm gear, 22. Worm gear shaft, 23. Coupling hole, 24. Worm shaft, 25. Power shaft, 26. Battery compartment, 27. Rounded corner, 28. Connection hole, 29. Flange, 30. Support beam, 31. End plate, 32. Reinforcing plate, 33. Reinforcing plate, 34. Anchor bolt hole, 35. Support plate.

[0051] 251. Surface Specific implementation method

[0052] In the embodiment of the present utility model, the ground lock provided is a ground lock having a turning shaft 11. Based on the rotation angle control of the turning shaft 11, for example, the turning plate 12 can be turned to have a working state (deployed state) and an avoidance state (stored state). For example, the turning plate 12 generally does not have an intermediate state, that is, the deployed state and the stored state generally correspond to stop positions with relatively fixed swing angles of the turning shaft 11, which can be respectively defined as the deployment position and the storage position.

[0053] Relatively speaking, the turning shaft 11 is generally installed horizontally at a predetermined position in, for example, a parking space, and this predetermined position is generally located in the middle of the parking space in the left-right direction. For the convenience of description, based on the parameters of the turning shaft 11 as a reference system, the axial direction, circumferential direction, and radial direction are determined. In the embodiment of the present utility model, unless otherwise specified, all are based on this technical reference system. Among them, the axial direction of the turning shaft 11 is defined as the length direction in some descriptions. Relative to the parking space, this length direction corresponds to the transverse direction of the parking space. Based on the parking space, the length direction of the turning shaft 11 corresponds to the width of the parking space.

[0054] Regarding the locking part installed on the turning shaft 11, it can be a rod body, such as the T-shaped locking part of a T-shaped parking lock, the U-shaped locking part of a U-shaped parking lock, etc. It can also be a plate body, such as Figure 8 the turning plate 12 shown in, and it can also be a rod-shaped locking part of a single rod or a double rod. In the embodiment of the present utility model, regarding the selection of the locking part, as long as the locking part of the existing parking lock meets the condition of being driven by the turning shaft 11, it can be selected, and details will not be elaborated here.

[0055] In Figure 1 the illustrated structure, the ground lock has two main chambers, namely the power chamber located on the left and the auxiliary chamber 14 located on the right. Since the equipment in the power chamber needs to be prominently shown, in Figure 1 the illustrated structure, the cover of the power chamber (also called the housing hereinafter) is omitted.

[0056] In Figure 2 and Figure 4 the illustrated structure, a seat plate 19 is provided. The seat plate 19 is mainly used as the base for installing other components of the ground lock. Unless directly related to the seat plate 19 hereinafter, the base is used as the base for directly or indirectly installing other components of the ground lock including but not limited to the seat plate 19. Obviously, the seat plate 19 is a statically determinate component, and other parts attached to the seat plate 19, such as the seat shell 1, can also be part of the base.

[0057] The basic part of the base can adopt a plate-like structure such as the seat plate 19, which is relatively simple as a whole and is convenient for presetting, for example, anchor bolt holes 34 through, for example, the way of opening holes, and installation holes for components with the seat plate 19 as the installation base, etc. For example Figure 1 the seat shell 1 shown in, which can be through, for example Figure 2The countersunk head screw 20 shown in [figure] is installed on the seat plate 19. Figure 2 In [figure], the countersunk head screw 20 is shown as being assembled to the power assembly 9. However, for plate structures such as the seat plate 19, components directly connected to the seat plate 19 can be assembled by, for example, passing screws or bolts upward from the bottom surface.

[0058] In the embodiment of the present utility model, a worm and worm gear mechanism is used as the transmission mechanism to achieve the transmission between the power machine and the turning shaft 11. Regarding the worm and worm gear mechanism, its typical characteristic is that it can achieve the transmission between intersecting axes, such as Figure 1 the transmission between the mutually perpendicular worm 5 and the turning shaft 11 in [figure]. By utilizing this typical characteristic, under the condition that the width of the turning plate 12 is determined, the lateral dimension of the ground lock can be relatively compact. At the same time, since the longitudinal dimension has relatively little impact on, for example, a vehicle, although there is also a consideration of compactness for the power cabin longitudinally arranged in the parking space, sacrificing longitudinal compactness to obtain better lateral compactness is more valuable. This is because when parking, a vehicle is more likely to deviate laterally rather than longitudinally. Obviously, when a vehicle deviates laterally, for example, the power cabin or the auxiliary cabin 14, it is more likely to collide with the vehicle. Therefore, when the lateral dimension of the ground lock is relatively compact, the probability of such collisions can be reduced.

[0059] Another characteristic of the worm and worm gear mechanism is that it has a large transmission ratio and a compact structure. By virtue of this characteristic of the worm and worm gear mechanism, the structure of the power cabin can be made more compact, especially in terms of height, under the condition of achieving the same transmission ratio. It should be known that for a ground lock used as a parking space lock, when the lock part is in the retracted state, it is the state with the most compact structure. At this time, it should be avoided that its height is higher than the ground clearance of the corresponding vehicle chassis. Therefore, a power cabin that is relatively compact in height by virtue of the worm and worm gear mechanism is more valuable.

[0060] Another characteristic of the worm and worm gear mechanism is that its transmission efficiency is low. However, in the embodiment of the present utility model, the object to be driven is, for example, the turning plate 12, which belongs to a lightly loaded object compared to the general driving objects in engineering applications. Simply in terms of state transformation, the low transmission efficiency does not have an obvious negative impact on the realization of the purpose of the present utility model. And the low transmission efficiency is often related to self-locking to a certain extent, and the worm and worm gear mechanism just has a certain self-locking property, which is manifested in that when the lead angle of the worm 5 is less than the equivalent friction angle of the meshed worm wheel 21, this worm and worm gear mechanism has self-locking property. At this time, only the worm 5 can be used as the driving part to drive the worm wheel 21 to rotate, and the worm wheel 21 cannot drive the worm 5 to move. When the worm wheel 21 generates a given torque due to, for example, the turning plate 12 being collided by, for example, the vehicle chassis, although the worm 5 will not be driven, the worm 5 will be subjected to a relatively large axial force exerted by the worm wheel 21.

[0061] Furthermore, by virtue of the self-locking property of the worm and worm gear mechanism, it is used to prevent the turning plate 12 from losing its working position under the impact that it can withstand. However, it should be noted that in the embodiments of the present invention, it is not required that the worm and worm gear mechanism must be a worm and worm gear mechanism with self-locking ability. Even if a worm and worm gear mechanism without self-locking ability is adopted, it will be relatively difficult to use the worm 21 to drive the worm gear 5. For example, for an electric motor, its resistance to axial force (except for linear motors) is relatively poor, but the circumferential force basically will not cause damage to the electric motor. It should be known that overload in the driving state belongs to another problem. In the embodiments of the present invention, the power assembly 9 stops after driving, for example, the turning plate 12 in place. In other words, when the turning plate 12, for example, is impacted by the vehicle chassis, the power assembly 9 is already in a stopped state and will not have the aforementioned overload problem.

[0062] Based on the foregoing description, it can be seen that using the worm and worm gear mechanism can keep the position of, for example, the turning plate 12 relatively good by virtue of the self-locking of the worm and worm gear mechanism under the condition that the power assembly 9 does not continuously output. The further technical problem to be considered is the protection of the power machine under the condition that the turning plate 12 is impacted.

[0063] In Figure 1 In the exemplified structure, the power machine is represented as the power assembly 9, which includes an electric motor and an optionally configured speed reducer, and generally uses, for example, a servo motor, a DC brushless motor or a stepping motor that can achieve precise control.

[0064] In the embodiments of the present invention, the ground lock can be self-powered, and a battery is arranged, for example, in the engine compartment. The battery is powered in DC mode, and the motor of the corresponding power assembly 9 is preferably a DC motor.

[0065] The worm and worm gear mechanism is directly or indirectly installed on the base body. On the seat plate 19 as Figure 2 exemplified, the worm and worm gear mechanism is arranged in a transmission case 4, and the transmission case 4 is fixed to the seat plate 19 by bolts or screws. The transmission case 4 is connected to the turning shaft 11 through its output shaft, that is, the worm shaft 22, and the connection method generally can be selected as a coupling connection.

[0066] Based on the content described above, the output shaft of the power machine is circumferentially connected to the worm of the worm and worm gear mechanism to realize the output of rotation based on the realization of the driving form. At the same time, based on the content described above, the worm 5 of the worm and worm gear mechanism should have axial freedom relative to the output shaft of the power machine, and at the same time, the axial movement amount of the worm 5 should not be too large, so constraints are provided to limit the worm 5 within a predetermined floating range.

[0067] Accordingly, the axial position of the worm 5 in the worm and worm gear mechanism should be determined to ensure relatively good meshing between the worm 5 and the corresponding worm wheel 21. Its initial position is achieved by hard limit, i.e., mechanical limit.

[0068] The worm 5 is generally installed in, for example, a transmission case 4 using, for example, angular contact bearings or combined bearings. In the embodiment of the present invention, the axial movement of the worm 5 needs to be considered. Therefore, the bearings, for example, used to support the worm 5 are arranged on a bearing seat that can move axially, for example, along the axis of the worm 5. The bearing seat can be in a position where the worm 5 and the worm wheel 21 have good meshing through the first constraint. At this time, on the side away from the power assembly 9, the bearing seat can use, for example, a baffle or other constraints to achieve position limitation. On the side where the power assembly 9 is located, an elastic member is first used to maintain the axial position of the worm 5 to ensure good cooperation with the worm wheel 21.

[0069] Accordingly, in terms of the positional relationship, the elastic member is arranged on the side where the power assembly 9 is located, and the elastic force provided is a force directed from the side where the power assembly 9 is located towards the worm 5, which is also the axial force of the worm 5. Relatively speaking, this axial force is also the axial force that makes the worm 5 move away from the output shaft direction. The output shaft is Figure 3 the power shaft 25 shown in, which is the output shaft of the power assembly 9.

[0070] The first function of the elastic member is to bias the worm 5 in the floating interval in the direction away from the output shaft, that is, to make the bearing seat of the worm 5, for example, abut against the aforementioned mechanical limit. At this time, the floating of the worm 5 is towards the side where the power machine is located. When the worm wheel 21 generates a relatively large axial force on the worm 5 due to, for example, the impact on the flap 12, the worm 5 will undergo a certain amount of axial movement, and the worm wheel 21 will also undergo a relatively small angular change. However, due to the existence of the floating space, the power machine will not be damaged or impaired. At the same time, the floating space is limited within a predetermined interval, and the flap 12 will not be displaced. In other words, overall, under the condition of ensuring that the power machine will not be damaged, locking parts such as the flap 12 will not be displaced either, and it has good structural reliability and car blocking reliability.

[0071] Next, the circumferential connection with axial freedom reserved between the output shaft of the power machine and the worm 5 will be specifically described. In Figure 12 the exemplified structure, it is a type of surface connection structure. This type of connection structure is as shown in Figure 12When there is a loose fit between the power shaft 25 shown in the figure and the mating sleeve hole (in the mechanical field, interference fit and transition fit are called tight fits, while clearance fit is called loose fit) or there is a fit clearance, it has axial freedom. Since part of the shaft body of the power shaft 25 is cut off, a profiled surface 251 is formed. Correspondingly, the sleeve hole provided by the sleeve body located on the worm 5 can be a non-round positive hole. Under this condition, a profiled surface connection is formed, and torque can be transmitted.

[0072] The sleeve hole can also be a round positive hole. At this time, it is often necessary to further configure, for example, a wedge block fixed in the sleeve hole for cooperating with the profiled surface 251, or a rotation-stopping body intervening from a side hole opened at the position where the sleeve body is aligned with the midline of the profiled surface 251, such as a block connected by a screw.

[0073] In addition, key connection is a relatively common circumferential connection method in the mechanical field that can provide circumferential connection but has axial freedom. A relatively typical one is spline connection, and its structural form is relatively simple, so it will not be elaborated here.

[0074] For other key connections, generally except for keys with axial constraints such as hook keys, basically the aforementioned circumferential connection with retained axial freedom can be achieved.

[0075] Among them, spline connection has good reliability and high centering accuracy, so it can be used as a preferred structure. However, in some embodiments, since the aforementioned circumferential connection with retained axial freedom is directly provided by, for example, a motor shaft and it is not suitable to reprocess the motor shaft, under this condition, spline connection is not the best choice.

[0076] However, in some embodiments, a sleeve part can be fitted to, for example, a motor shaft, and the sleeve part can have splines.

[0077] In addition, regarding the sleeve part, for example, the part cooperating with the power shaft 25 can be a coupling hole 23 directly machined from the worm shaft 24 of the worm 5, or a sleeve body fitted at the shaft end of the worm shaft 24.

[0078] In addition, the key connection available in the embodiments of the present invention can also include, for example, flat key connection, and the flat key can be an ordinary Type A flat key or Type C flat key.

[0079] Regarding the selection of the elastic component, a rectangular spring 7 is preferably selected. The rectangular spring 7 has a large maximum load-bearing capacity and a relatively long service life. The elastic component can also be a set of disc springs. The set of disc springs also has a relatively large stiffness coefficient and a relatively compact structure.

[0080] In addition, ordinary cylindrical springs can still be selected.

[0081] The rectangular spring 7 belongs to a type of cylindrical spring. Obviously, this cylindrical spring belongs to a compression spring. The spring can be sleeved on the rod section of the corresponding worm 5 without spiral teeth, and this rod section constitutes a spring guide post to prevent, for example, the rectangular spring 7 from buckling.

[0082] In addition, the spring can be additionally equipped with a spring guide post, which can be a sleeve. The sleeve is sleeved on the rod section of the worm 5 without spiral teeth. The inner diameter of the sleeve is smaller than the major diameter of the spiral teeth. Therefore, the spring guide post provided by the sleeve is an incomplete spring guide post and mainly serves as a spring seat.

[0083] Correspondingly, the sleeve constituting the spring seat can be fixed on the box plate of the transmission case 4 facing the power assembly 9 as shown in Figure 11 the figure.

[0084] In addition, as shown in Figure 2 the illustrated structure, thrust bearings 17 and 18 are provided at both ends of the rectangular spring 7 to reduce the resistance suffered by the worm 5 during rotation. Under this condition, only one of the thrust bearings 17 or 18 can be provided. At this time, the rotational direction of the rectangular spring 7 relative to the worm 5 is statically determinate.

[0085] Relatively speaking, for example, for the rectangular spring 7, it is preferably in rolling fit with the spiral teeth of the worm. At this time, the aforementioned thrust bearing 17 is fitted at this end of the rectangular spring 7.

[0086] Since the end face of the rectangular spring 7 is usually a flat end face and a fixed spring seat can be fitted, under this condition, for example, the flat end face can be in engagement with the spiral teeth of the worm 5 and adapted to be in sliding fit.

[0087] In addition, one end of the rectangular spring 7 that is relatively fitted with the spiral teeth of the worm 5 can be fixedly connected to the worm 5, while the other end of the rectangular spring 7 is in rolling fit with the box plate of the transmission case 4 facing the power assembly 9 through the thrust bearing 18.

[0088] Regarding the aforementioned setting of the rectangular spring 7 under the condition of the transmission case 4 being provided, if the transmission case 4 is not provided, it is necessary to additionally provide, for example, a bearing seat or other structural bodies for arranging, for example, the rectangular spring 7.

[0089] Configuring the worm and worm gear mechanism in a transmission case 4 is beneficial for lubricating the worm and worm gear pair. Correspondingly, lubricating oil is stored in the transmission case 4.

[0090] In some implementations, the worm and worm gear pair can be lubricated with grease. If lubricated with lubricating oil, the oil level in the transmission case 4 should ensure that at least one-third of the worm wheel 21 is immersed therein, but the worm 5 usually needs to be completely exposed from the oil sump defined by the transmission case 4.

[0091] As described above, when providing support (when there is sliding or rolling friction between the rectangular spring 7 and the box plate) or bracing (when the rectangular spring 7 is fixedly arranged with the box plate) with, for example, the box plate of the transmission case 4, the elastic component is correspondingly located inside the transmission case 4.

[0092] In addition, based on the aforementioned floating space, for the assembly of the worm 5 on, for example, the transmission case 4 as described above, a corresponding bearing housing can be adapted for assembly. The bearing housing mainly provides support for the worm 5 and bears axial and radial loads. For the movement of the bearing housing on the worm 5, an axial bearing or other guiding structures can be additionally provided to guide the supporting part of the worm 5, for example, the bearing housing supporting the worm 5.

[0093] Regarding the connection between the worm gear 21 and the turning shaft 11, in some embodiments, the turning shaft 11 can form the worm gear shaft 22. In more embodiments, both the turning shaft 11 and the worm gear shaft 22 are independent shafts, and they can be fixed into one body or connected by a coupling.

[0094] If a coupling is used, preferably an elastic coupling is used, which can buffer a certain amount of impact.

[0095] In addition, in some embodiments, the turning shaft 11 is provided with a reset device. In other embodiments, the reset device can be arranged on the locking part. In still other embodiments, the reset device can be provided on both the turning shaft 11 and the locking part.

[0096] In Figure 1 In the illustrated structure, inside the power box, a torsion spring 6 is provided at the shaft end of the turning shaft 11 corresponding to assist the reset of the turning shaft 11.

[0097] The torsion spring 6 adopts a symmetric arrangement in the preferred embodiment, that is, one is provided at each end of the turning shaft 11.

[0098] In addition, a torsion spring 6 can be separately provided in the middle of the turning shaft 11.

[0099] In some embodiments, torsion springs 6 can be provided at both ends and in the middle of the turning shaft 11 to make the overall reset control more reliable.

[0100] Regarding the arrangement of the torsion spring 6, if, for example, the turning plate 12 is the direct acting object of the torsion spring 6, a relatively larger torsion spring 6 can be used and is generally arranged in the middle of the turning plate 12, and one torsion spring 6 can meet the use requirements.

[0101] Regarding the support of the rotation axis 11, in a preferred embodiment, a bearing housing is used for support. Regarding the selection of the bearing housing for supporting the rotation axis 11, it can be a sliding bearing or a rolling bearing. Its force form is relatively simple, mainly radial force and almost no axial force. Therefore, a sliding bearing with a relatively simple structure can be selected.

[0102] The bearing should have relatively good dust-proof effect. It should be known that for the ground lock, its use environment is relatively harsh. If a rolling bearing is selected, a covered bearing can be used, or the bearing housing configured for the rotation axis 11 has a bearing chamber with relatively good sealing performance.

[0103] Another thing to note is that since the application scenario of the rotation axis 11 in the ground lock is often not an application with high precision requirements, therefore, the support for the rotation axis 11 can be a support hole directly opened on a predetermined body such as a plate body, thus forming a proposed sliding bearing structure.

[0104] In Figure 1 In the illustrated structure, the end of the rotation axis 11 is located in the power cabin and the secondary cabin 14. Through the configuration of the cabins, the working environment of the bearing configured for the rotation axis 11 is improved.

[0105] Similarly, the cabin structure is also beneficial to protecting other components, especially electronic components, such as cameras or other sensors 3.

[0106] Among them, the power cabin is mainly used for installing components such as a transmission box 4 and a power assembly 9 for driving the transmission box 4. For the power supply, such as Figure 5 and Figure 10 the battery compartment 26 shown in

[0107] Regarding the secondary cabin 14, various sensors or other electronic components can be distributed in different cabins in order to avoid mutual interference among various sensors.

[0108] Relatively speaking, since there is no transmission part in the secondary cabin 14, its height can be relatively lower. For the power cabin, due to the installation of mechanical devices such as the transmission box 4, its height is relatively higher. For a camera, for example, it can be installed in the power cabin, making the camera position relatively higher, so as to more easily identify, for example, license plates through the camera.

[0109] Components and the like with relatively low height requirements can be configured in the secondary cabin 14.

[0110] In addition, in Figure 1 the illustrated structure, a wire conduit 16 is also provided for the electrical connection between the electrical equipment in the power cabin and the secondary cabin 14, that is, for routing wires.

[0111] The wire conduit 16 can be a rigid pipe, such as a galvanized steel pipe.

[0112] In addition, as can be seen in the Figure 1 and Figure 9 exemplary structures, the threading pipe 16 is also covered under the slope panel 15, and the slope panel can directly face, for example, the rolling of a vehicle and has a stiffness sufficient to withstand the rolling of the vehicle. Under this condition, the threading pipe 16 can be made of a pipe with relatively low stiffness but relatively good corrosion resistance, such as a PVC pipe, a PPR pipe, or a PC pipe, etc.

[0113] Regarding the threading pipe 16, for the convenience of threading, the threading pipe 16 can adopt a short pipe, and only a short pipe is welded, for example, on the structural plates of the two compartments. The cables located, for example, under the slope panel 15 can be supported without using a pipe. In addition, threading holes can be provided on the lower side of the slope panel 15, for example, on the reinforcing plate 32, to provide auxiliary support for the cables.

[0114] For various electrical equipment, there are also relatively high requirements for the working environment. Therefore, for the power compartment and the auxiliary compartment 14, their sealing level is not lower than IP57.

[0115] It should be known that the IP68 level is actually the highest level of the enclosure protection level. However, for the IP57 level, it can provide protection against solid objects larger than 1 mm, and for the waterproof ability, it can ensure that the equipment is not damaged when completely immersed in water for a short period of time (generally 30 min).

[0116] For the IP68 level, there are even higher requirements, that is, it is required that the enclosure can completely prevent foreign objects and dust from entering, and at the same time, it is required that the enclosure can ensure that the equipment is sunk indefinitely under the specified water pressure and the equipment is not damaged due to immersion in water.

[0117] In the embodiments of the present utility model, the parts that need to be protected are mainly the parts located inside the equipment compartment, that is, the parts located inside the power compartment and the auxiliary compartment 14, and there are only two dynamic sealing points, that is Figure 1 the part where the rotating shaft 11 shown in

[0118] cooperates with the two compartments. Figure 1 In addition, in some embodiments, the bearing seat for supporting the right end of the rotating shaft 11 in

[0119] For static sealing alone, it is very easy to achieve IP68-level sealing by, for example, constructing a sealing structure that sets a sealing medium between the seat shell 1 and the cover shell. For example, the seat shell 1 is connected to a given cover shell through a flange, and a rubber sealing ring is set on the mating interface of the flange. Combined with fastening by, for example, bolts, very reliable sealing can be achieved. It should be known that for a ground lock, except in extremely harsh environments, the environments in which it is used usually do not result in situations such as being submerged 1 m in water, and the IPx7 level of protection can meet the condition that the device can be immersed in water, for example, 1 m deep, without being damaged due to immersion within 30 minutes.

[0120] In addition, for dynamic sealing, for example, in the part where the turning shaft 11 mates with the power compartment, a shaft seal and a dust-proof ring can be set, which can basically meet the protection level above IP57.

[0121] Regarding the cover shell, it is adapted to the seat shell 1. In addition, in order to protect the electrical and mechanical devices housed in, for example, the power compartment, the power compartment formed by the cover shell and the seat shell 1 should have relatively good sealing as described above. However, some electrical devices may have special requirements for sound, light, etc. For example, a camera needs to be directly exposed outside the power compartment or requires the power compartment to have a transparent part. Considering the overall protection level, the camera is installed in the power compartment, for example, and the cover shell is adapted with a transparent window in the direction where the camera captures images or videos.

[0122] The transparent window can be a glass window or a window made of transparent engineering plastics, etc. According to the aforementioned protection level, a suitable material can be selected for production, which will not be elaborated here.

[0123] Regarding, for example, cameras, etc., they belong to image and / or video acquisition devices, and the same applies to other types of image and / or video acquisition devices.

[0124] For cameras, etc., they are mainly used for license plate recognition, and can also record and save information such as vehicle models and the situation of vehicles entering and leaving parking spaces or be used for vehicle status recognition. Only relevant configurations are schematically given here, and algorithms for specific implementations such as license plate recognition will not be described. The same applies to others, which will not be elaborated here.

[0125] In addition, regarding, for example, distance detection, radars, ultrasonic rangefinders, or laser rangefinders, etc. can also be configured. Some of these devices can be directly installed on the outer surface of the cover shell, for example, without considering protection issues, while some can be installed inside the cover shell, such as a laser rangefinder.

[0126] For radar and ultrasonic rangefinders, they need to be exposed from the housing, but a shield can be used for mechanical protection. For example, for an ultrasonic rangefinder, its main body can be located inside the cabin, and the probe is exposed. The probe can be installed on the housing through a conical shield.

[0127] In addition, all the instruments and meters that can be currently installed on the ground lock can be assembled in the embodiments of the present invention. For another example, a speaker can be provided to provide interactive information in the form of sound to the vehicle owner.

[0128] For another example, considering the overall management of the parking lot, a wired or wireless communication module can be set in the power cabin or the secondary cabin 14, for example, to integrate the control and management of the ground lock into the parking space management system.

[0129] Regarding the power supply for the electrical equipment of the ground lock, it has been described above. In a more preferred embodiment, a storage battery is installed in the power cabin, such as Figure 4 the battery compartment 26 shown in

[0130] Regarding the power supply for the electrical equipment of the ground lock, an external power supply can also be configured for it.

[0131] In addition, as described above, for the power assembly 9, for example, which uses a DC motor and generally includes components such as a camera, a low-voltage DC power supply is commonly used. Therefore, it is more advantageous to use a storage battery for power supply.

[0132] In addition, for the external power supply, it is generally connected to the mains power. Currently, the power modules for converting mains power to DC power are very mature, and even power strips often come with DC interfaces, so this will not be elaborated further.

[0133] Regarding the position retention of the locking part, it has been described in the foregoing content. The self-locking of the worm and worm gear mechanism is used to achieve the retention of the locking part. However, relatively large impacts are likely to cause plastic deformation or biting of the worm teeth or the helical teeth of the worm. Therefore, in the reverse direction (the reset direction of the flipping shaft 11), by setting a rectangular spring 7, for example, while protecting the power assembly 9, it also protects the worm and worm gear mechanism. In the forward direction, a limiting device can be further provided. Under the condition of the existing rectangular spring 7, the limiting device adopts a relatively rigid limiting method.

[0134] Correspondingly, for example, the limit of the flipping plate 12 in place at the end point of the flipping is the end limit of its unfolding stroke. A limiting device for the locking part in place at the end point is provided, and the limiting device preferably adopts rigid limiting.

[0135] Regarding the in-place limiting device when the flipping plate 12 is in the unfolded state, its installation position is relatively flexible. It can be set on the flipping plate 12, or on the flipping shaft 11, or directly on the base body. For example Figure 9On the seat plate 19 shown in .

[0136] In addition, since, for example, the seat shell 1 is substantially fixedly connected to the seat plate 19 , the seat shell 1 as a whole can be understood as a structure of a base body.

[0137] In addition, for example Figure 10 The slope panel 15 shown in the example can also be used as a limiting device for the flip plate 12 to flip into place.

[0138] exist Figure 6 In the illustrated structure, an eccentric plate 10 is fixedly mounted on the flip shaft 11. Based on the general concept of the eccentric plate 10, when it rotates with the flip shaft 11, the distance between its contour and the seat plate 19 will change. Based on the need to avoid interference within the working stroke of the flip shaft 11, it is obvious that the eccentric plate 10 will not produce motion interference with the seat plate 19 within the working stroke of the flip shaft 11, or will not produce relatively violent motion interference. At the dead point of the working stroke of the flip shaft 11, mechanical contact is generated between the eccentric plate 10 and the seat plate 19, thereby forming a limiting force sufficient to limit the eccentric plate 10.

[0139] exist Figure 6 In the illustrated structure, the eccentric plate 10 is a rectangular plate, one corner of which is rounded. The arrow in the figure is the direction in which the flip plate 12 is unfolded, and the direction opposite to the arrow is the direction in which the flip plate 12 is stored (reset). Under this condition, the portion where the rectangular plate-shaped eccentric plate 10 is connected to the flip shaft 11 is Figure 6 At the same time, the center of the rounded corner of the rectangular eccentric plate 10 falls on the axis of the flip shaft 11. Under this condition, even if the eccentric plate 10 comes into contact with the seat shell 1 during the unfolding process of the flip plate 12, due to the existence of the rounded corner and the rounded corner being concentric with the flip shaft 11, the minimum distance between the eccentric plate 10 and the seat shell 1 will not change during this process until the lower edge of the eccentric plate 10 in the figure is engaged with the seat shell 1. The state of the eccentric plate 10 at this time is the eccentric plate 10' corresponding to the double-dotted line in the figure.

[0140] In addition, the eccentric plate 10 can also be understood as a cam. In other words, the eccentric plate 10 can also achieve the expected function by adopting other cam structures.

[0141] In addition, for example, when the flip plate 12 is in a vertical state, it is roughly in a state where its blocking range is the largest. Under this condition, a control is set on, for example, the seat plate 19 to provide a baffle or a baffle pin to achieve the limitation of the seat plate 19.

[0142] Based on the above description, it can be known that the limiting function is mainly manifested between components that have a motion and static relationship with each other. Installing the component used to provide limiting function on the moving component or the static component can achieve the predetermined limiting function.

[0143] Regarding the setting position of the limiting component, it can be set at any 1 to 3 positions out of a total of three positions at both ends and the middle of the turning shaft 11. For example Figure 1 In the illustrated structure, it shows that an eccentric plate 10 is provided at the left end of the turning shaft 11, and an eccentric plate 10 can also be provided at the secondary cabin 14. In addition, an eccentric plate 10 can also be provided in the middle of the turning shaft 11. Any one of the three positions where the eccentric plate 10 is provided can be selected, or two can be selected, or three can be set simultaneously. Among them, it is preferred to set an eccentric plate 10 on each of the left and right sides.

[0144] In some of the foregoing embodiments, the locking portion is selected as the turning plate 12 mounted on the turning shaft 11. Figure 1 and Figure 8 In the illustrated structure, the turning plate 12 is a strip plate, and the turning shaft 11 is located at the first plate edge of the turning plate 12 along the strip direction.

[0145] The turning shaft 11 and the turning plate 12 can be fixedly connected by welding.

[0146] In order to meet the requirement of disassembly, the turning shaft 11 and the turning plate 12 can be connected by, for example, bolts.

[0147] In addition, Figure 8 In the illustrated structure, the upper surface of the turning plate 12 is a checkered plate, and four reinforcing plates 33 are provided on its lower surface. Through holes can be provided on the reinforcing plates 33, and the turning shaft 11 sequentially passes through the through holes of the reinforcing plates 33, and then is fixedly connected by welding or other connection methods.

[0148] Correspondingly, set screws holes can be opened on the through holes, and the assembly between the turning shaft 11 and the turning plate 12 can be achieved by the locking method of set screws to facilitate the replacement of the turning plate 12.

[0149] In addition, Figure 8 At both ends of the turning plate 12 in the illustration, a pair of combined plates are used, including a reinforcing plate 33 and a first end plate, to improve the overall connection strength.

[0150] For the slope panel 15, its strengthening method can refer to the strengthening method of the turning plate 12, and the reinforcing plate 32 and the end plate 31 are schematically shown in Figure 10 and will not be elaborated here.

[0151] In addition, Figure 10 In the illustrated structure, the upper side of the slope panel 15 has an integral flange, which can improve the overall strength.

[0152] Correspondingly, in Figure 10In the exemplary structure, a flanging 29 or other strengthening structures are also provided on the plate edge of the tipping plate 12 where the roller shaft 13 is provided to improve the overall strength.

[0153] In addition, a support beam 30 is provided on the back side of the tipping plate 12, that is, the plate surface opposite to the patterned surface of the patterned panel, to improve the overall strength.

[0154] Regarding the roller shaft 13, the roller shaft 13 is provided at the end of the tipping plate 12, that is, on the side away from the tipping shaft 11. When, for example, the vehicle chassis rubs against the end of the tipping plate 12, the sliding friction is changed to rolling friction to reduce the load on the power assembly and the worm and worm gear mechanism under such conditions.

[0155] Since the tipping plate 12 may be subjected to the rolling of the vehicle wheels when in the stowed state, the tipping plate 12 should have good support under such conditions. Under this condition, the tipping shaft is located on the lower side of the tipping plate to provide the first side support, and this side is called the side where the first plate edge of the tipping plate 12 is located. At the same time, it is necessary to ensure that when the tipping plate 12 is in the stowed state, the second plate edge opposite to the first plate edge is also supported on the base body, so as to avoid damage to the power assembly 9 or the worm and worm gear pair due to the suspension of the second plate edge.

[0156] The second plate edge is the plate edge where the roller shaft 13 is provided.

[0157] For the slope plate 15, it can be configured with reference to the stowed state of the tipping plate 12. At the same time, as Figure 7 shown, the slope plate 15 and the tipping plate 12 are the highest above the tipping shaft 11, and a double slope structure is formed as a whole, which is beneficial to, for example, the passage of vehicles.

Claims

1. A ground lock, characterized in that, Comprising: A base; A locking part rotatably mounted on the base by a horizontal rotation axis; A worm and worm gear mechanism mounted on the base, with the worm gear thereof connected to the rotation axis; A power machine having an output shaft, the worm of the worm and worm gear mechanism being circumferentially connected to the output shaft, and the worm having an axial degree of freedom relative to the output shaft and being axially limited within a predetermined floating range; And An elastic member providing an axial force acting in a direction away from the output shaft on the worm, so that the worm is biased in a direction away from the output shaft within the floating range.

2. The ground lock according to claim 1, characterized in that, The connection between the output shaft and the worm is a profile connection, spline connection, sliding key connection or flat key connection.

3. The ground lock according to claim 1, characterized in that, The elastic member is a spring sleeved on a corresponding worm or a given sleeve, one end of the spring being in sliding or rolling fit with the worm teeth, and the other end being supported on a given static component or structure.

4. The ground lock according to claim 1 or 3, characterized in that, The worm and worm gear mechanism is arranged in a transmission box; The elastic member is correspondingly located within the transmission box.

5. The ground lock according to claim 1, characterized in that, The worm shaft of the worm gear is connected to the rotation axis by a coupling or fixed integrally therewith.

6. The ground lock according to claim 5, characterized in that, The coupling is an elastic coupling.

7. The ground lock according to claim 1, characterized in that, The rotation axis and / or the locking part is equipped with a reset device.

8. The ground lock according to claim 1, characterized in that, Both ends of the rotation axis are mounted on the base through predetermined bearing seats; One chamber is provided at each end of the rotation axis adapted thereto, one chamber being a power chamber provided with a power machine, and the other chamber being a secondary chamber.

9. The ground lock according to claim 8, wherein, The sealing level of at least the power chamber is not lower than IP57.

10. The ground lock according to claim 8, characterized in that, At least equipped with an image and / or video acquisition device for license plate recognition; The image and / or video acquisition device is arranged in the power chamber or the secondary chamber; Correspondingly, the power chamber or the secondary chamber provided with the image and / or video acquisition device has a viewing window.

11. The ground lock according to claim 8, characterized in that, The power chamber is provided with a storage battery and / or externally connected to a power source to supply power to the ground lock electrical equipment.

12. The ground lock according to claim 1, characterized in that, Equipped with a limiting device for limiting the end stop position of the locking part.

13. The ground lock according to claim 12, characterized in that, The limiting device is a rigid limiting part or a limiting part with a flexible body mounted on the rotation axis, the locking part or the base.

14. The ground lock according to claim 13, wherein When the rigid limiting part is arranged on the rotation axis, it is arranged at 1 to 3 positions out of a total of three positions at both ends and the middle of the rotation axis.

15. The ground lock according to claim 14, characterized in that, The rigid limiting part is an eccentric plate mounted on the rotation axis. During the flipping stroke of the locking part, the eccentric plate disengages from a predetermined fixed part and engages with the fixed part indirectly at the limiting position.

16. The ground lock according to claim 1, characterized in that, The locking part is a flipping plate mounted on the rotation axis, the flipping plate being a strip plate, and the rotation axis being located at the first plate edge of the flipping plate along the strip direction.

17. The ground lock according to claim 16, characterized in that, When the flipping plate is in the storage state, the rotation axis is located below the flipping plate, and the second plate edge of the flipping plate opposite to the first plate edge is supported on the base.

18. The ground lock according to claim 17, characterized in that, The second plate edge is provided with a roller shaft.

19. The ground lock according to any one of claims 16 to 18, characterized in that, A slope panel is provided on the second side of the rotation axis; Correspondingly, when the flipping plate is in the storage state, a double slope structure with the upper part of the rotation axis as the ridge is formed between the flipping plate and the slope panel.

20. A management system, characterized in that, For managing a parking space by using the ground lock according to any one of claims 1 to 19.

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