Mechanical parking lot emergency brake device

Abstract

The application discloses a mechanical parking lot emergency braking device, which comprises a circulating lifting mechanism, a plurality of vehicle carrying mechanisms arranged in sequence along a motion track on the circulating lifting mechanism, and a passive braking mechanism, wherein the passive braking mechanism comprises a second track, a plurality of second blocks are arranged on the second track and can slide along the track direction of the second track, each vehicle carrying mechanism is fixedly connected with a second block, the second block is provided with an extrusion gap, a deformation layer is arranged at the extrusion gap, a plurality of protruding parts are arranged in sequence along the length direction on the vertical inner side wall of the second track, the protruding parts are arranged on the second track and can slide along the vertical direction, and a first elastic member is arranged between the protruding parts and the second track, a locking mechanism is further arranged between the protruding parts and the second track, a plurality of recessed parts are arranged in sequence along the length direction on the vertical section outer side wall of the second track, and the plurality of protruding parts and the plurality of recessed parts are in one-to-one correspondence.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical parking lot, in particular to an emergency braking device for mechanical parking lot. BACKGROUND

[0002] It is known that mechanical parking lots are divided into lifting and transverse moving type, vertical lifting type, plane moving type, vertical circulating lifting type, simple lifting type, multi-layer circulating type, and roadway stacking type mechanical type according to their structures. Mechanical parking lots have the characteristics of convenient storage and retrieval, economical operation, convenient maintenance, and small land occupation, and are a solution to the current problem of more vehicles and less parking area.

[0003] Among them, the vertical circulating lifting type mechanical parking lot can be built by occupying two parking spaces on the ground floor, and the equipment is as high as ten or even dozens of layers. When parking, the driver can park the vehicle on the vehicle loading plate above the ground floor. After the driver leaves the vehicle, the mechanical transmission device operates to lift the vehicle loading plate where the vehicle is parked upward, and the next empty vehicle loading plate is lowered to the ground floor. When taking the vehicle, the mechanical transmission device lowers the vehicle loading plate where the specified vehicle is parked to the ground floor, and the driver drives away with the vehicle. The mechanical transmission device is realized by a set of circulating lifting mechanism, such as a chain transmission mechanism.

[0004] In order to avoid the running failure of the circulating lifting mechanism, resulting in the falling of the vehicle loading plate, an emergency braking mechanism is provided in the prior art to stop the circulating lifting mechanism in time to avoid falling accidents.

[0005] For example, a PCS ultra-high vertical lifting type mechanical parking garage with publication number CN212224809U and publication date December 25, 2020, two emergency braking mechanisms act on two guide rails respectively; the emergency braking mechanism is provided with an elastic eccentric wheel. When braking, the elastic eccentric wheel is turned to a large radius position to provide a pushing force outward to the guide rail. When the elastic eccentric wheel is subjected to excessive force in the direction of the guide rail, the elastic eccentric wheel rotates a full circle and then acts on the guide rail again. By rotating the elastic eccentric wheel to a large diameter position, the extrusion force between the elastic eccentric wheel and the guide rail is increased to increase the friction force. When the impact force in the direction of the guide rail is too large, the friction force is insufficient to brake, the elastic eccentric wheel will rotate again, and the repeated action will reduce the instantaneous impact force until the final braking.

[0006] The prior art has the problem that the existing emergency braking is all active braking, that is, a sensor is arranged on the circulating lifting mechanism, the operation of the equipment is monitored by the sensor, and once the equipment has an operation failure, the sensor can transmit a signal to the braking mechanism to perform emergency braking; if both the circulating lifting mechanism and the active braking mechanism have a failure, the operation failure of the circulating lifting mechanism cannot be eliminated, which brings very serious consequences; obviously, the active emergency braking mechanism can be adapted as one of the braking modes, but the situation how to achieve emergency braking when the above situation occurs should also be considered, and therefore a passive emergency braking mechanism is arranged to still achieve emergency braking when the above situation occurs. SUMMARY

[0007] The purpose of the present application is to provide a mechanical parking lot emergency braking device to solve the technical problems in the related art.

[0008] In order to achieve the above purpose, the present application provides the following technical scheme:

[0009] A mechanical parking lot emergency braking device, comprising a circulating lifting mechanism, a plurality of vehicle carrying mechanisms are arranged in sequence along a movement track on the circulating lifting mechanism, and a passive braking mechanism, comprising a second track, a plurality of second blocks are slidably arranged along the track direction of the second track, each vehicle carrying mechanism is fixedly connected with a second block, an extrusion gap is arranged on the second block, a deformation layer is arranged at the extrusion gap, a plurality of protruding portions are arranged in sequence along the length direction on the vertical inner side wall of the second track, the protruding portions are vertically slidably arranged on the second track and connected with first elastic members, a locking mechanism is further arranged between the protruding portions and the second track, a plurality of recessed portions are arranged in sequence along the length direction on the vertical section outer side wall of the second track, and the plurality of protruding portions and the plurality of recessed portions correspond to each other; when the equipment has an operation failure, the deformation layer hits the protruding portion, the deformation layer deforms to expose the extrusion gap, the locking mechanism removes the locking of the protruding portion at the same time, and the protruding portion gradually deviates from the recessed portion under the pushing of the second block.

[0010] The locking mechanism comprises a slot arranged on the inner side wall of the second track and a plug rod slidably arranged on the protruding portion, and a second elastic member is connected between the plug rod and the protruding portion in the sliding direction of the plug rod, an extrusion rod is further slidably arranged on the protruding portion, and a jacking rod is arranged at the extrusion gap; in the exposure stroke of the extrusion gap, the jacking rod pushes the extrusion rod to extrude the plug rod to gradually separate from the slot.

[0011] The extrusion rod is provided with a first wedge surface, the plug rod is provided with a second wedge surface, the first wedge surface abuts against the second wedge surface, and in the extrusion stroke of the first wedge surface against the second wedge surface, the plug rod gradually separates from the slot.

[0012] The plurality of insertion rods are arranged on the convex part, and a plurality of insertion slots equal in number to the insertion rods are arranged on the inner side wall of the second track, one end of the insertion rod and the insertion slot are inserted, when the convex part is reset under the action of the first elastic member, when the insertion rod is not inserted with the insertion slot at the corresponding position, the third wedge surface on the insertion rod passes through other insertion slots, and the insertion rod can be staggered with other insertion slots.

[0013] The first track is arranged along the movement track of the circulating lifting mechanism, a plurality of first blocks are arranged on the first track and slide thereon, the plurality of first blocks are in one-to-one correspondence with the plurality of vehicle carrying mechanisms and are fixedly connected, and the first track is parallel to the second track.

[0014] The second block is extruded into the recess by the convex part in the moving stroke, and the second block stops moving in the vertical direction and stays at the lower end of the recess.

[0015] The vehicle carrying mechanism comprises a plurality of support rods, the plurality of support rods are in one-to-one correspondence with the plurality of first blocks and are fixedly connected, and a pull frame is swingingly installed at each axial end of each support rod.

[0016] The first block and the second block are both cylindrical, the arc surface of the first block is in contact with the side wall of the first track, and the arc surface of the second block is in contact with the side wall of the second track.

[0017] The vertical ascending section of the first track coincides with the vertical ascending section of the second track, and the vertical descending section of the first track coincides with the vertical descending section of the second track.

[0018] The width of the first track is smaller than the width of the second track.

[0019] The beneficial effects of the present application are that: by arranging the deformation layer, the extrusion gap can be exposed when the circulating lifting mechanism normally operates, and at this time, the second block extrudes the convex part due to the limitation of the locking mechanism, the convex part cannot move downward, so as to ensure that the equipment normally operates without being hindered, and secondly, when the circulating lifting mechanism suddenly falls due to operation failure, the sudden impact of the second block on the convex part causes the deformation of the deformation layer to expose the extrusion gap and abut against the convex part, at the same time, the locking mechanism removes the locking of the convex part, the convex part is pushed downward by the second block to compress the first elastic member, the compression process of the first elastic member can buffer the impact action of the second block, after the convex part and the recess are staggered, the distance between the convex part and the outer side wall of the second track is smaller than the width between the inner and outer side walls of the second track, so that the second block cannot descend, thereby realizing emergency braking. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A perspective structural schematic view of a mechanical parking lot emergency braking device provided in an embodiment of the present application;

[0022] Figure 2 A running plane structural schematic view of a vehicle carrying mechanism of a mechanical parking lot emergency braking device provided in an embodiment of the present application;

[0023] Figure 3 A first track and a second track plane structural schematic view of a mechanical parking lot emergency braking device provided in an embodiment of the present application;

[0024] Figure 4 A perspective structural schematic view of a mechanical parking lot emergency braking device provided in an embodiment of the present application; Figure 3 An enlarged structural schematic view of A in the perspective structural schematic view of the mechanical parking lot emergency braking device provided in the embodiment of the present application;

[0025] Figure 5 A perspective structural schematic view of a vehicle carrying mechanism of a mechanical parking lot emergency braking device provided in an embodiment of the present application;

[0026] Figure 6 A plane structural schematic view of a second block extrusion protrusion part of a mechanical parking lot emergency braking device provided in an embodiment of the present application in three states of front, middle and rear;

[0027] Figure 7 A plane structural schematic view of a second block of a mechanical parking lot emergency braking device provided in an embodiment of the present application;

[0028] Figure 8 A protrusion part cross-sectional structural schematic view of a mechanical parking lot emergency braking device provided in an embodiment of the present application.

[0029] Explanation of reference signs:

[0030] 1, circulating lifting mechanism; 2, vehicle carrying mechanism; 20, support rod; 21, pull frame; 22, vehicle carrying plate; 3, first track; 30, first block; 4, second track; 40, second block; 6, protrusion part; 7, recess part; 8, passive braking mechanism; 80, extrusion notch; 81, deformation layer; 82, insertion slot; 83, insertion rod; 830, second wedge surface; 831, third wedge surface; 84, extrusion rod; 840, first wedge surface; 85, top rod. DETAILED DESCRIPTION

[0031] In order for those skilled in the art to better understand the technical solutions of the present application, the following will combine the accompanying drawings to further describe the present application. Figure 1 to the accompanying drawings Figure 8 The present application will be further described.

[0032] In the description of the present application, it should be understood that the terms "length", "width", "degree", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0033] The mechanical parking lot emergency braking device of the present application comprises a circulating lifting mechanism 1, a plurality of vehicle carrying mechanisms 2 are arranged in sequence along the movement track on the circulating lifting mechanism 1, and a passive braking mechanism 8 is further arranged, which comprises a second track 4, a plurality of second blocks 40 are arranged along the track direction of the second track 4, each vehicle carrying mechanism 2 is correspondingly fixed with a second block 40, an extrusion gap 80 is arranged on the second block 40, a deformation layer 81 is arranged at the extrusion gap 80, a plurality of protruding portions 6 are arranged in sequence along the length direction on the vertical inner side wall of the second track 4, the protruding portions 6 are arranged in vertical sliding mode on the second track 4 and are connected with the first elastic members, a locking mechanism is further arranged between the protruding portions 6 and the second track 4, a plurality of recessed portions 7 are arranged in sequence along the length direction on the vertical section outer side wall of the second track 4, and the plurality of protruding portions 6 and the plurality of recessed portions 7 correspond one by one; when the equipment fails to operate, the deformation layer 81 hits the protruding portion 6, the deformation layer 81 deforms to expose the extrusion gap 80, and the locking mechanism removes the locking of the protruding portion 6 at the same time, and the protruding portion 6 gradually deviates from the recessed portion 7 under the pushing of the second block 40.

[0034] Specifically, the circulating lifting mechanism 1 preferably uses a driving source to drive a chain transmission mechanism, wherein the chain transmission mechanism is arranged vertically, and two chains are arranged, and the space between the two chains is used for the operation of the vehicle carrying mechanism 2, that is, the chain is divided into a vertical ascending section and a vertical descending section during operation, and two circular arc sections connecting the horizontal opposite ends of the vertical ascending section and the vertical descending section, the vehicle carrying mechanism 2 is a mechanism for containing vehicles, and a plurality of vehicle carrying mechanisms 2 are arranged in sequence on the entire movement track of the chain transmission mechanism, when parking or taking a vehicle, the empty vehicle carrying mechanism 2 or the vehicle carrying mechanism 2 containing the corresponding vehicle is moved to the lowest position by the driving source driving the chain transmission mechanism, that is, the vehicle carrying mechanism 2 is moved to the ground layer, so as to park or drive away the vehicle.

[0035] The protruding part 6 is a block structure, the extrusion gap 80 on the second block 40 is consistent with the upper end shape of the protruding part 6, and the deformation layer 81 is arranged outside the extrusion gap 80 in the normal operation state to prevent the extrusion gap 80 from abutting against the upper end of the protruding part 6 and limiting the movement of the second block 40 in the second track 4, at this time, when the protruding part 6 runs to the second block 40, the interaction between the protruding part 6 and the second block 40 makes the second block 40 deviate from the original movement track and enter the track between the protruding part 6 and the recess 7, when both the circulating lifting mechanism 1 and the active brake mechanism fail, the vehicle carrying mechanism 2 falls, the second block 40 is driven to quickly descend, at this time, the descending speed of the second block 40 will be obviously faster than the normal operation speed, then when the deformation layer 81 contacts the upper end of the protruding part 6, the instantaneous impact between the two makes the deformation layer 81 recess to expose the extrusion gap 80 to abut against the upper end of the protruding part 6, at the same time, the locking mechanism removes the locking of the protruding part 6, the second block 40 pushes the protruding part 6 to descend together, the descending of the protruding part 6 compresses the first elastic member, the elastic force of the first elastic member increases to realize the buffering of the descending of the second block 40, after the protruding part 6 and the recess 7 completely deviate, the distance between the protruding part 6 and the outer side wall of the second track 4 is smaller than the distance between the inner and outer side walls of the second track 4, so that the second block 40 cannot continue to descend, thereby realizing the emergency brake of the sudden descending of the second block 40.

[0036] The beneficial effects of the embodiment are that: by arranging the deformation layer 81, the extrusion gap 80 is not exposed when the circulating lifting mechanism 1 normally operates, and at this time, the second block 40 extrudes the protruding part 6, which is limited by the locking mechanism, so that the protruding part 6 cannot descend to ensure that the equipment normally operates without being hindered, and when the circulating lifting mechanism 1 suddenly falls due to operation failure, the sudden impact between the second block 40 and the protruding part 6 makes the deformation layer 81 deform to expose the extrusion gap 80 and abut against the protruding part 6, at the same time, the locking mechanism removes the locking of the protruding part 6, the protruding part 6 is pushed downward by the second block 40 to compress the first elastic member, the compression process of the first elastic member can buffer the impact of the second block 40, after the protruding part 6 deviates from the recess 7, the distance between the protruding part 6 and the outer side wall of the second track 4 is smaller than the width between the inner and outer side walls of the second track 4, so that the second block 40 cannot descend, thereby realizing the emergency brake.

[0037] Preferably, the locking mechanism comprises a slot 82 formed in the inner wall of the second track 4 and a plug rod 83 slidingly arranged on the protruding portion 6, and a second elastic member is connected between the protruding portion 6 and the plug rod 83 in the sliding direction of the plug rod 83, and a pressing rod 84 is slidingly arranged on the protruding portion 6, and a top rod 85 is arranged at the pressing gap 80, and in the exposure stroke of the pressing gap 80, the top rod 85 pushes the pressing rod 84 to press the plug rod 83 to gradually separate from the slot 82, a first wedge surface 840 is arranged on the pressing rod 84, a second wedge surface 830 is arranged on the plug rod 83, the first wedge surface 840 abuts against the second wedge surface 830, and in the stroke of the first wedge surface 840 pressing the second wedge surface 830, the plug rod 83 gradually separates from the slot 82.

[0038] Specifically, the top rod 85 is arranged in the extrusion gap 80. When the deformation layer 81 is not extruded and deformed, the deformation layer 81 is equivalent to wrapping the top rod 85 in the extrusion gap. The deformation layer 81 is provided with a hole for the top rod 85 to extend out of. In the stroke of the deformation layer 81 impacting the protruding portion 6 to be deformed and recessed, the extrusion gap 80 is gradually exposed, so the top rod 85 also extends out of the hole, and the top rod 85 will contact the extrusion rod 84 and push it downward. The downward movement of the extrusion rod 84 will extrude the plug rod 83 to be separated from the insertion slot 82. Until the extrusion gap 80 is completely attached to the upper end of the protruding portion 6, that is, at the critical point between the complete attachment of the extrusion gap 80 to the upper end of the protruding portion 6, the deformation distance of the deformation layer 81 needs to be deformed by 10 cm. When the distance between the extrusion gap 80 and the protruding portion 6 is completely attached to 1 cm, the plug rod 83 is also completely separated from the insertion slot 82, that is, the locking of the protruding portion 6 is completely released. Then the second block 40 will drive the protruding portion 6 to move downward together. Among them, the extrusion rod 84 extruding the plug rod 83 can drive the plug rod 83 to be separated from the insertion slot 82, that is, the extrusion rod 84 is provided with a first wedge surface 840, and the plug rod 83 is provided with a second wedge surface 830. When the extrusion rod 84 does not extrude the plug rod 83, the lower end of the first wedge surface 840 is in contact with the upper end of the second wedge surface 830. When the extrusion rod 84 extrudes the plug rod 83, the lower end of the first wedge surface 840 moves downward along the vertical direction, extruding the second wedge surface 830. The extrusion force of the first wedge surface 840 moving downward along the vertical direction to the second wedge surface 830 generates a component force on the second wedge surface 830 in the direction of the plug rod 83 being separated from the insertion slot 82, so that the lower end of the second wedge surface 830 gradually contacts the lower end of the first wedge surface 840. That is, in this process, the plug rod 83 moves to be separated from the insertion slot 82, so that the locking of the protruding portion 6 is released, the second block 40 drives the protruding portion 6 to move downward together, the downward movement of the protruding portion 6 compresses the first elastic member, the elastic force of the first elastic member increases to achieve the buffering effect of the downward movement of the second block 40. After the protruding portion 6 is completely misaligned with the recessed portion 7, the distance between the protruding portion 6 and the outer side wall of the second track 4 is less than the distance between the inner and outer side walls of the second track 4, so the second block 40 cannot continue to move downward, thereby achieving the emergency braking of the sudden downward movement of the second block 40.

[0039] In an optional embodiment, a plurality of plug rods 83 are arranged on the protruding portion 6, and a plurality of insertion slots 82 equal in number to the plug rods 83 are arranged on the inner side wall of the second track 4. One end of the plug rod 83 and the insertion slot 82 are provided with a third wedge surface 831. When the protruding portion 6 is reset under the action of the first elastic member, the plug rod 83 is not inserted into the corresponding insertion slot 82, and the third wedge surface 831 on the plug rod 83 passes through other insertion slots 82, so that the plug rod 83 can be misaligned with other insertion slots 82.

[0040] Specifically, since the circulating lifting mechanism 1 operates frequently, the number of actions between the second block 40 and the protruding part 6 will also be more, so as to prevent the protruding part 6 from being pressed down when there is no accident, the number of the insertion rod 83 and the insertion slot 82 is increased to multiple in the embodiment, so as to improve the limiting effect on the protruding part 6 during normal use, wherein in order to facilitate the correct insertion of each insertion rod 83 into the corresponding insertion slot 82 during the elastic reset of the protruding part 6 by the first elastic member, one end of the insertion rod 83 and the insertion slot 82 is provided with a third wedge surface 831, when the third wedge surface 831 contacts other insertion slots 82 during the reset of the protruding part 6, the other insertion slots 82 can slide apart from the third wedge surface 831, after the protruding part 6 is completely reset, the insertion rod 83 is inserted into the corresponding insertion slot 82, and the protruding part 6 cannot move downward if the insertion rod 83 does not separate from the insertion slot 82, so as to realize the position locking of the protruding part 6.

[0041] Further, a first track 3 arranged along the movement track of the circulating lifting mechanism 1 is further included, a plurality of first blocks 30 are slidably arranged on the first track 3, the plurality of first blocks 30 are one-to-one corresponding to and fixedly connected with the plurality of vehicle carrying mechanisms 2, and the first track 3 is parallel to the second track 4.

[0042] Specifically, since the chain in the chain transmission mechanism has a certain tightness requirement during use, and the weight of the vehicle carrying mechanism 2 after parking the vehicle is basically more than one ton, the part of the vertical section of the chain close to the ground will be relaxed by the gravity action of the vehicle carrying mechanism 2, and the part of the vertical section away from the ground, so as to cause the horizontal left and right swinging of the chain, therefore, in the embodiment, the first track 3 is arranged, and the vehicle carrying mechanism 2 is connected with the first block 30 corresponding to the first track 3, so as to limit the chain in the horizontal direction, that is, the first block 30 connects the chain, and the first block 30 cannot swing left and right, so the chain also cannot swing left and right, thereby avoiding the above situation.

[0043] The track of the first track 3 coincides with the movement track of the chain, and the entire vehicle loading mechanism 2 needs to keep the vehicle stable after parking the vehicle. Therefore, the connection between the vehicle loading mechanism 2 and the first block 30 needs to be deflected when the vehicle loading mechanism 2 passes through the circular arc segment, so as to realize the deflection. Therefore, a new problem that the vehicle loading mechanism 2 is prone to swing during the lifting cycle operation is caused, and the vehicle loading mechanism 2 is inclined. After the vehicle is parked on the vehicle loading mechanism 2, the connecting piece between the vehicle loading mechanism 2 and the lifting mechanism is greatly increased due to gravity. Therefore, the wear of the connecting piece is aggravated when the vehicle loading mechanism 2 swings. This is obviously not conducive to ensuring the safety of parking. Therefore, the first track 3 and the second track 4 are used in cooperation. The first track 3 is parallel to the second track 4. That is, the vertical segment of the first track 3 is parallel to the vertical segment of the second track 4. The circular arc segment of the first track 3 is parallel to the circular arc segment of the second track 4. Therefore, the entire vehicle loading mechanism 2 is equivalent to being limited at two positions during the operation. Therefore, the relative rotation between the vehicle loading mechanism 2 and the first block 30 still occurs when the vehicle loading mechanism 2 passes through the circular arc segment. Due to the limitation of the second track 4, the second block 40 can only move along the track of the second track 4 and cannot swing left and right. Therefore, the swing of the vehicle loading mechanism 2 is limited.

[0044] Preferably, the vehicle loading mechanism 2 comprises a plurality of vehicle loading plates 22, the plurality of vehicle loading plates 22 are one-to-one corresponding to and fixedly connected to the plurality of first blocks 30, and each vehicle loading plate 22 is swingingly installed with a pull frame 21 at both axial ends. Two pull frames 21 jointly lift a vehicle loading plate 22, and the two pull frames 21 are connected to the first block 30 by a support rod 20. The vertical ascending segment of the first track 3 coincides with the vertical ascending segment of the second track 4, and the vertical descending segment of the first track 3 coincides with the vertical descending segment of the second track 4. Specifically, the vehicle loading plate 22 is fixedly connected to the first block 30, and the vehicle loading plate is fixedly connected to the second block 40. From the horizontal direction, the vehicle loading plate 22 is parallel to the length direction center line of the corresponding vehicle loading plate, and from the vertical direction, the projections of the two coincide. Therefore, during the movement of the vehicle loading plate, whether in the vertical ascending segment or the vertical descending segment, or in the circular arc segment, the vehicle loading plate and the vehicle loading plate 22 always keep the above-mentioned position unchanged. Therefore, the vehicle loading plate can stably park the vehicle and will not swing. Since the first block 30 and the second block 40 are respectively connected to different positions of the vehicle loading mechanism 2, that is, the vertical segment of the first track 3 is parallel to and coincides with the vertical segment of the second track 4, and the circular arc segment of the first track 3 and the circular arc segment of the second track 4 are vertically located below the circular arc segment of the first track 3 and are parallel to each other.

[0045] Further, the second block 40 is pressed into the protrusion 6 in the moving stroke, and the second block 40 stops moving in the vertical direction and stays at the lower end of the recess 7; specifically, when the vehicle is not parked or taken, the chain transmission mechanism is in a static state, and then the vehicle carrying mechanism 2 is also in a static state, and in the prior art, the entire vehicle carrying mechanism 2 mainly provides the pulling force by the connection of the vehicle carrying plate 22 and the first block 30, and after the vehicle is parked on the vehicle carrying plate, the required pulling force is greatly increased, so in the embodiment, the second block 40 can be located between the protrusion 6 and the recess 7 each time the chain transmission mechanism stops running, and the second block 40 stays at the lower end of the recess 7, and the recess 7 provides an upward supporting action on the second block 40, so that the vehicle carrying plate not only has the pulling force provided by the connection of the vehicle carrying plate 22 and the first block, but also has the supporting force provided by the corner of the recess 7, thereby reducing the gravity of the vehicle carrying plate borne by the vehicle carrying plate 22 and the first block 30, wherein the length of the protrusion 6 is less than the length of the recess 7, the distance between the protrusion 6 and the recess 7 is equal to the width of the second track 4, that is, the cooperation of the protrusion 6 and the recess 7 is equivalent to changing a part of the vertical section of the second track 4, that is, in the vertical ascending section, when the second block 40 moves from bottom to top through the protrusion 6 and the recess 7, the second block 40 will first be offset outward, then move upward along the vertical direction, and then be offset inward and then move downward along the vertical direction, and in the vertical descending section, when the second block 40 moves from top to bottom through the protrusion 6 and the recess 7, the second block 40 will first be offset outward, then move downward along the vertical direction, and then be offset inward and then move upward along the vertical direction, so that when the second block 40 stays at the lower end of the recess 7, the lower end of the recess 7 can provide an upward supporting action on the second block 40.

[0046] Preferably, the first block 30 and the second block 40 are both cylindrical, the arc surface of the first block 30 is in contact with the side wall of the first track 3, and the arc surface of the second block 40 is in contact with the side wall of the second track 4; specifically, since the first track 3 and the second track 4 both have a part from a straight section into an arc section and from the arc section into a vertical section, in order to enable the first block 30 to smoothly run in the first track 3 without being hindered and the second block 40 to smoothly run in the second track 4 without being hindered, in the embodiment, the first block 30 and the second block 40 are both preferably cylindrical, the first block 30 is in linear contact with the side wall of the first track 3, and the second block 40 is also in linear contact with the side wall of the second track 4, so that the first block 30 and the second block 40 can smoothly run without being hindered in the movement process.

[0047] Preferably, the width of the first track 3 is smaller than the width of the second track 4, and the depth of the first track 3 is larger than the depth of the second track 4; in particular, because the first track 3 and the second track 4 have a portion of overlap, in order to avoid the second block 40 entering the first track 3, the width of the first track 3 is smaller than the width of the second track 4, and the radial dimension of the second block 40 is larger than the radial dimension of the first block; in order to avoid the first block 30 entering the second track 4, the depth of the first track 3 is larger than the depth of the second track 4, i.e. the axial length of the first block 30 is larger than the axial length of the second block 40; in this way, during operation, both the first block 30 and the second block 40 will run in the corresponding tracks.

[0048] The foregoing merely illustrates some exemplary embodiments of the present application, no doubt numerous modifications and alterations can be made by those skilled in the art without departing from the spirit and scope of the present application. Accordingly, the above description is illustrative and not restrictive.

Claims

1. A mechanical parking lot emergency braking device, comprising a circulating lifting mechanism, a plurality of vehicle carrying mechanisms are arranged in sequence along the movement track on the circulating lifting mechanism, characterized in that, Also comprising: The passive brake mechanism comprises a second track, a plurality of second blocks are arranged along the track direction of the second track, each carrier mechanism is fixedly connected with a second block, the second block is provided with an extrusion gap, a deformation layer is arranged at the extrusion gap, a plurality of protrusions are arranged on the vertical inner side wall of the second track in the length direction, the protrusions are arranged on the second track in the vertical direction and are connected with the first elastic element, a locking mechanism is arranged between the protrusions and the second track, a plurality of recesses are arranged on the vertical outer side wall of the second track in the length direction, and the plurality of protrusions correspond to the plurality of recesses one by one. When the equipment fails, the deformation layer hits the protrusion, the deformation layer deforms to expose the extrusion gap, and the locking mechanism removes the locking of the protrusion, and the protrusion gradually deviates from the recess under the pushing of the second block.

2. The mechanical parking facility emergency brake device according to claim 1, characterized in that The locking mechanism comprises a slot arranged on the inner side wall of the second track and a plug rod arranged on the protrusion, and a second elastic element is connected between the plug rod and the protrusion in the sliding direction, an extrusion rod is arranged on the protrusion, and a jack is arranged at the extrusion gap, and in the exposure stroke of the extrusion gap, the jack pushes the extrusion rod to extrude the plug rod to gradually separate from the slot.

3. The mechanical parking facility emergency brake device according to claim 2, characterized in that The extrusion rod is provided with a first wedge surface, the plug rod is provided with a second wedge surface, the first wedge surface abuts against the second wedge surface, and in the extrusion stroke of the first wedge surface against the second wedge surface, the plug rod gradually separates from the slot.

4. The mechanical parking facility emergency brake device according to claim 3, characterized in that The plug rod is provided with a plurality of protrusions on the protrusion, and the second track is also provided with a plurality of slots equal to the number of the plug rods, one end of the plug rod and the slot are inserted, and the end is provided with a third wedge surface, when the protrusion is reset under the action of the first elastic element, the plug rod is not inserted with the corresponding slot, the third wedge surface on the plug rod passes through other slots, and the plug rod deviates from other slots.

5. The mechanical parking facility emergency brake device according to claim 1, characterized in that, Also comprising a first track arranged along the movement track of the circulating lifting mechanism, a plurality of first blocks are arranged on the first track in a sliding manner, the plurality of first blocks correspond to the plurality of carrier mechanisms one by one and are fixedly connected, and the first track is parallel to the second track.

6. The mechanical parking facility emergency brake device according to claim 1, characterized in that, The second block is extruded into the recess by the protrusion in the movement stroke, and the second block stops moving in the vertical direction and stays at the lower end of the recess.

7. The mechanical parking facility emergency brake device according to claim 6, characterized in that The carrier mechanism comprises a plurality of support rods, the plurality of support rods correspond to the plurality of first blocks one by one and are fixedly connected, the axial ends of each support rod are swingingly installed with a pull frame, and the two pull frames jointly lift a carrier plate.

8. The mechanical parking facility emergency brake device according to claim 7, characterized in that The first block and the second block are both cylindrical, the arc surface of the first block is in contact with the side wall of the first track, and the arc surface of the second block is in contact with the side wall of the second track.

9. The mechanical parking facility emergency brake device according to claim 8, characterized in that The vertical ascending section of the first track coincides with the vertical ascending section of the second track, and the vertical descending section of the first track coincides with the vertical descending section of the second track.

10. The mechanical parking facility emergency brake device according to claim 9, characterized in that The width of the first track is smaller than the width of the second track.

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