Lift car positioning anti-falling device for stereo garage

Abstract

The utility model provides a car positioning and anti-falling device for a stereo garage, which comprises at least two first laser displacement sensors mounted in the bottom of a foundation pit and at least two second laser displacement sensors mounted on a middle sports car, the first laser displacement sensors are positioned at two longer ends of a detection car and are used for detecting the top end of the foundation pit, and the second laser displacement sensors are positioned at two longer ends of the detection car. A clamping device is arranged at the side end, close to the side wall of the foundation pit, of the lift car, a vertical friction rail is arranged on the side wall of the foundation pit, the clamping device comprises a friction clamping plate capable of being clamped, and the friction clamping plate abuts against the side wall of the friction rail. The problems of positioning and falling prevention of vertical lifting type mechanical parking equipment are solved.

Description

Technical Field

[0001] The utility model relates to the field of three-dimensional garages, in particular to a car positioning and anti-falling device for a three-dimensional garage. Background Technique

[0002] In a vertical lifting type mechanical parking equipment, a large car performs a lifting action to reach a target floor, and a middle car on a traversing carriage performs a traversing action to reach a target parking space. When the equipment moves vertically and horizontally to a target position, accurate positioning is required. When the transporter moves a vehicle from the transporter to a parking space or from a parking space to the transporter, the large car and the middle car need to be stable, and the coordinate position does not change much. At the same time, the load change and impact generated when the transporter stores or retrieves a vehicle will cause the load borne by the large car and the middle car to change. Therefore, an anti-falling device is also required to prevent safety accidents caused by the sudden breakage of the lifting steel wire rope or chain.

[0003] In addition, due to the tiny tensile deformation performance of the steel wire rope or chain itself, when a vehicle is placed in the large car, the steel wire rope or chain will be slightly stretched due to the heavy weight of the vehicle, resulting in a certain distance of the car position dropping, with an obvious gap from the no-load docking position. Traditional mechanical parking equipment uses methods such as inserting pins or using lifting arms to maintain the position of the large car during leveling and prevent falling. The anti-falling device using the pin form will lock the pin shaft when the force on the large car changes and cannot be retracted. Summary of the Utility Model

[0004] The utility model provides a car positioning and anti-falling device for a three-dimensional garage, which solves the problems of positioning and anti-falling of vertical lifting type mechanical parking equipment.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a car positioning and anti-falling device for a three-dimensional garage, including at least two first laser displacement sensors installed at the bottom of a foundation pit and at least two second laser displacement sensors installed on a middle car. The first laser displacement sensors are located at both ends of the longer side of the detected car and detect the top of the foundation pit. The second laser displacement sensors are used to detect both ends of the longer side of the middle car. A clamping device is provided at the side end of the foundation pit side wall close to the car, and a vertical friction rail is provided on the foundation pit side wall. The clamping device includes a friction clamping plate that can be clamped, and the friction clamping plate abuts against the side wall of the friction rail.

[0006] In a preferred solution, the two first laser displacement sensors are arranged diagonally at the bottom of the car, and the two second laser displacement sensors are arranged diagonally on the middle car.

[0007] In a preferred embodiment, the clamping device includes a connecting frame installed on the car. There are two rotating arms on the connecting frame. The middle of each rotating arm is hinged to the connecting frame. The hinge point of the rotating arm divides the rotating arm into a long-arm end and a short-arm end. A friction clamping plate is provided at the short-arm end, and a linear drive cylinder is provided between the long-arm ends. Both ends of the linear drive cylinder are hinged to the long-arm ends.

[0008] In a preferred embodiment, the friction rail is provided with a positioning cone groove, the friction clamping plate is provided with a stepped hole, a telescopic positioning head is provided in the stepped hole, a guiding conical surface is provided at one end of the telescopic positioning head, a large-diameter part is provided at the other end of the telescopic positioning head, the guiding conical surface is used to insert into the positioning cone groove, an adjusting end block connected by a thread is also provided in the stepped hole, a compression spring is provided between the adjusting end block and the telescopic positioning head, and an electromagnet is provided on the adjusting end block, and the electromagnet is used to attract the telescopic positioning head.

[0009] In a preferred embodiment, a positioning induction device is provided at the side end of the car. The positioning induction device includes a detected block installed on the car and a sensor bracket installed on the side wall of the foundation pit. A first proximity switch and a second proximity switch are provided on the sensor bracket along the height direction, and the first proximity switch and the second proximity switch are used to detect the detected block.

[0010] The beneficial effects of the present utility model are as follows: The laser rangefinder is installed on the transverse moving middle car, and two laser rangefinders are installed at the diagonals of the middle car respectively. A laser rangefinder reflector is installed at the top of the equipment shaft to measure the coordinate position of the middle car, and the positioning is more accurate;

[0011] In traditional mechanical parking equipment, when a laser rangefinder is installed in the foundation pit on the large car and a reflector is installed at the bottom of the large car to measure the distance between the large car and the bottom of the foundation pit for positioning the large car, if the large car is not level, the positioning error of the two ends of the parking space is large. For the flat layer anti-falling device of the mechanical parking equipment described in the present device, clamping devices are installed at the four corners of the large car. After the equipment runs to the target position, the clamping oil cylinder drives the clamping swing arm to act and clamp the track, ensuring that the positioning position does not change significantly. Even the load changes and impacts caused by the transporter transporting the vehicle can keep the equipment position unchanged;

[0012] The clamping device can also play an anti-falling role when the lifting wire rope or chain breaks. In the emergency situation where the lifting wire rope or chain breaks during the lifting and lowering operation of the equipment, the clamping device can also perform an emergency brake to ensure the safety of the equipment. Description of the Drawings

[0013] The present utility model will be further described below with reference to the drawings and embodiments.

[0014] Figure 1 It is a top view schematic diagram of the present utility model.

[0015] Figure 2 It is an elevation schematic diagram of the present utility model.

[0016] Figure 3 It is an enlarged structural diagram of the clamping device of the present utility model.

[0017] Figure 4 It is a schematic diagram of the floor positioning of the proximity switch of the present utility model.

[0018] Figure 5 It is a schematic side view of the friction rail of the present utility model.

[0019] Figure 6 It is a schematic diagram of the retraction of the telescopic positioning head of the present utility model.

[0020] Figure 7 It is a schematic diagram of the extension of the telescopic positioning head of the present utility model.

[0021] Figure 8 It is an enlarged view of the telescopic positioning head of the present utility model.

[0022] Figure 9 It is a schematic diagram of the friction splint of the present utility model.

[0023] In the figure: car 1; first laser displacement sensor 101; first reflector 102; middle car 2; second laser displacement sensor 201; second reflector 202; clamping device 3; swing arm 301; connecting frame 302; linear drive cylinder 303; friction splint 304; friction rail 305; positioning cone groove 306; stepped hole 307; positioning induction device 4; detected block 401; first proximity switch 402; second proximity switch 403; sensor bracket 404; telescopic positioning head 5; guiding conical surface 501; compression spring 502; adjusting end block 503; large diameter part 504; electromagnet 6. Specific embodiments

[0024] As Figures 1-9 shown, a car positioning and anti-falling device for a stereoscopic garage includes at least two first laser displacement sensors 101 installed at the bottom of the foundation pit and at least two second laser displacement sensors 201 installed on the middle car 2. The first laser displacement sensor 101 is used to detect the two ends with longer length of the car 1, and the second laser displacement sensor 201 is used to detect the two ends with longer length of the middle car 2. A clamping device 3 is provided at the side end of the foundation pit side wall close to the car 1, and a vertical friction rail 305 is provided on the foundation pit side wall. The clamping device 3 includes a friction splint 304 that can be clamped, and the friction splint 304 abuts against the side wall of the friction rail 305.

[0025] A stereoscopic garage generally has multiple floors, with multiple parking spaces on each floor. The foundation pit is used for the up and down movement of the car-carrying car, and the frame and moving track for installing the car-carrying car are installed, etc.

[0026] Generally, a middle running car 2 that can move horizontally is provided on the car body 1. Different horizontal positions correspond to different parking spaces on each floor. Generally, an extendable car carrier arm assembly is provided on the middle running car 2 for transporting a vehicle from the parking space into the middle running car 2.

[0027] During the vertical movement of the car body 1, when the first laser displacement sensor 101 and the first reflector 102 detect that the moving speed per unit time and the acceleration of the car body 1 calculated through real-time displacement exceed the normal value, it is determined as a falling state. At this time, the clamping device 3 can clamp the friction rail 305 to reduce the speed of the car body 1 through friction, improving safety and reliability.

[0028] In a preferred solution, two first laser displacement sensors 101 are arranged diagonally at the bottom end of the car body 1, and two second laser displacement sensors 201 are arranged diagonally on the middle running car 2.

[0029] There are two first laser displacement sensors 101, which are arranged in an oblique diagonal at the bottom end of the foundation pit. A first reflector 102 is provided at the bottom end of the car body 1, and the first laser displacement sensor 101 is aligned with the first reflector 102. There are two second laser displacement sensors 201, which are arranged in an oblique diagonal on the middle running car 2. Two strip-shaped second reflectors 202 are provided at the top end of the foundation pit. The second reflectors 202 are parallel to the moving direction of the middle running car 2. The second laser displacement sensor 201 is vertically aligned with the second reflector 202. When the middle running car 2 moves horizontally on the car body 1, it can always irradiate the second reflector 202.

[0030] The first laser displacement sensor 101 and the second laser displacement sensor 201 cooperate to monitor the overall structural horizontal deviation of the car body 1 and the middle running car 2. When the detected inclination angle is too large, the control system controls the clamping device 3 to clamp the friction rail 305. When the car body 1 stops at each floor normally, when the first laser displacement sensor 101 and the second laser displacement sensor 201 jointly detect that the positions of the car body 1 and the middle running car 2 are at the set positions, the control system controls the clamping device 3 to clamp the friction rail 305. The frictional resistance between the friction clamping plate 304 and the friction rail 305 prevents the impact force when the vehicle is transported onto the middle running car 2 from causing the car body 1 and the middle running car 2 to fall a certain distance, maintaining accurate positioning.

[0031] In a preferred solution, the clamping device 3 includes a connecting frame 302 installed on the car body 1. Two rotating arms 301 are provided on the connecting frame 302. The middle of each rotating arm 301 is hinged to the connecting frame 302. The hinge point of the rotating arm 301 divides the rotating arm 301 into a long arm end and a short arm end. A friction clamping plate 304 is provided at the short arm end, and a linear drive cylinder 303 is provided between the long arm ends. Both ends of the linear drive cylinder 303 are hinged to the long arm ends.

[0032] The linear drive cylinder 303 uses a hydraulic cylinder, an electric cylinder or a booster cylinder. The contact surface between the friction clamping plate 304 and the friction rail 305 can be provided with friction lines to increase the friction coefficient.

[0033] Since the car carrier device retracts, there will be an instantaneous impact when the vehicle is placed on the middle car 2. When the clamping force of the friction clamping plate 304 is too small, the frictional resistance is not enough to counteract the instantaneous impact, and the car body 1 and the middle car 2 will still have a short-distance drop, affecting the positioning accuracy. If the clamping force of the friction clamping plate 304 is too large, when the car body 1 drops, the frictional resistance is too large when the friction clamping plate 304 clamps the friction rail 305, and the deceleration is too fast, resulting in too much impact on the vehicle. Therefore, the clamping device 3 needs to ensure an appropriate clamping force to meet the two requirements of anti-falling and positioning at the same time, and has high requirements for the selection, pressure supply, debugging and installation of the linear drive cylinder 303.

[0034] In a preferred solution, the friction rail 305 is provided with a positioning cone groove 306, the friction clamping plate 304 is provided with a stepped hole 307, a telescopic positioning head 5 is arranged in the stepped hole 307, a guiding conical surface 501 is arranged at one end of the telescopic positioning head 5, a large-diameter part 504 is arranged at the other end of the telescopic positioning head 5, the guiding conical surface 501 is used for inserting into the positioning cone groove 306, an adjusting end block 503 connected by a thread is also arranged in the stepped hole 307, a compression spring 502 is arranged between the adjusting end block 503 and the telescopic positioning head 5, and an electromagnet 6 is arranged on the adjusting end block 503, and the electromagnet 6 is used for attracting the telescopic positioning head 5.

[0035] The large-diameter part 504 can prevent the telescopic positioning head 5 from coming out of the stepped hole 307.

[0036] The positioning cone grooves 306 are arranged on both sides of the friction rail 305 at each floor height of the garage. When it is detected that the car body 1 and the middle car 2 move to the set height, the cylinder rod of the connecting frame 302 extends, the long arm end of the rotating arm 301 opens, the short arm end closes and the friction clamping plate 304 clamps the side surface of the friction rail 305; at the same time, the electromagnet 6 loses power, and the telescopic positioning head 5 makes the guiding conical surface 501 insert into the positioning cone groove 306 and the conical surface abuts under the thrust of the compression spring 502. At this time, the up and down impact force of the transported vehicle under the combined action of the frictional resistance and the oblique resistance of the telescopic positioning head 5 is not enough to make the telescopic positioning head 5 retract, and the car body 1 and the middle car 2 are stable in the height direction, avoiding vertical sliding due to impact. When the car body 1 needs to move, the electromagnet 6 is powered on to attract the telescopic positioning head 5 to retract, and the clamping device 3 releases the friction rail 305.

[0037] In this way, the clamping device 3 can meet the anti-falling requirement and the requirement of stable positioning at each floor stop without too large a clamping force.

[0038] In a preferred solution, a positioning induction device 4 is provided at one side end of the car 1. The positioning induction device 4 includes a detected block 401 installed on the car 1 and a sensor bracket 404 installed on the side wall of the foundation pit. A first proximity switch 402 and a second proximity switch 403 are arranged on the sensor bracket 404 in the height direction. The first proximity switch 402 and the second proximity switch 403 are used to detect the detected block 401.

[0039] If the first proximity switch 402 and the second proximity switch 403 simultaneously detect the detected block 401, it indicates that the car 1 has stopped in place. If only the upper first proximity switch 402 detects the detected block 401 and the lower second proximity switch 403 does not detect the detected block 401, it means that the car 1 has stopped too low. On the contrary, it means that the car 1 has stopped too high. When there are many floors and the foundation pit is deep, the positioning accuracy of the proximity switch is higher than that of the laser sensor.

[0040] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A car positioning and anti-falling device for a three-dimensional parking garage, characterized in that: The invention comprises at least two first laser displacement sensors (101) installed at the bottom of a foundation pit and at least two second laser displacement sensors (201) installed on a middle carriage (2), wherein the first laser displacement sensors (101) are used to detect the two ends of the longer length of the car (1), and the second laser displacement sensors (201) are located at the two ends of the longer length of the middle carriage (2) and detect the top of the foundation pit. A clamping device (3) is provided at the side end of the side wall of the foundation pit to which the car (1) is close, and a vertical friction rail (305) is provided on the side wall of the foundation pit. The clamping device (3) comprises a clampable friction clamping plate (304), and the friction clamping plate (304) abuts against the side wall of the friction rail (305).

2. The car positioning and anti-falling device for a three-dimensional parking garage according to claim 1 is characterized in that: The two first laser displacement sensors (101) are arranged diagonally at the bottom end of the car (1), and the two second laser displacement sensors (201) are arranged diagonally on the middle carriage (2).

3. The car positioning and anti-falling device for a three-dimensional parking garage according to claim 1 is characterized in that: The clamping device (3) comprises a connecting frame (302) mounted on the car (1), the connecting frame (302) being provided with two rotating arms (301), the middle portion of each rotating arm (301) being hinged to the connecting frame (302), the hinge point of the rotating arm (301) dividing the rotating arm (301) into a long arm end and a short arm end, the short arm end being provided with a friction clamping plate (304), a linear drive cylinder (303) being provided between the long arm ends, and both ends of the linear drive cylinder (303) being hinged to the long arm ends.

4. The car positioning and anti-falling device for a three-dimensional parking garage according to claim 3 is characterized in that: A positioning cone groove (306) is provided on the friction rail (305), a step hole (307) is provided on the friction clamping plate (304), a telescopic positioning head (5) is provided in the step hole (307), a guide cone surface (501) is provided at one end of the telescopic positioning head (5), a large diameter portion (504) is provided at the other end of the telescopic positioning head (5), the guide cone surface (501) is used to be inserted into the positioning cone groove (306), a threaded adjustment end block (503) is further provided in the step hole (307), a compression spring (502) is provided between the adjustment end block (503) and the telescopic positioning head (5), and an electromagnet (6) is provided on the adjustment end block (503), and the electromagnet (6) is used to attract the telescopic positioning head (5).

5. The car positioning and anti-falling device for a three-dimensional parking garage according to claim 1 is characterized in that: A positioning sensing device (4) is provided at the side end of the car (1), the positioning sensing device (4) comprising a detected block (401) mounted on the car (1) and a sensor bracket (404) mounted on the side wall of the foundation pit, a first proximity switch (402) and a second proximity switch (403) being provided on the sensor bracket (404) along the height direction, the first proximity switch (402) and the second proximity switch (403) being used to detect the detected block (401).

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