Overload limiter for vertical circulating stereo garage

Abstract

The utility model discloses an overload limiter for a vertical circulating stereo garage, which belongs to the technical field of stereo parking equipment and comprises a frame, the frame comprises two parallel frame pieces, and the top end of each frame piece is movably connected with a lifting plate for supporting a circulating large chain of the vertical circulating stereo garage. Each frame piece is connected with at least two weight sensors through a height-adjustable device, and the top end of each weight sensor is in close contact with a lifting plate on the frame piece; and each weight sensor is connected with a control system of the vertical circulating stereo garage through a cable. According to the utility model, the load condition of the vertical circulation stereo garage can be accurately monitored, and the operation safety of the vertical circulation stereo garage is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garage equipment, in particular to an overload limiter for a vertical circulation stereo garage. Background Art

[0002] With economic development and the improvement of people's living standards, the number of cars has increased significantly. The number of existing parking spaces can hardly meet daily needs, resulting in parking difficulties and chaos. Especially in the core areas of cities, parking conflicts are more prominent. In order to make full use of limited ground and underground space resources and improve the surrounding environment, the development and construction of three-dimensional parking facilities has gradually been recognized and supported.

[0003] The existing driving device of the vertical circulation stereo garage includes a frame plate on the left and right sides, a driving motor is installed on one frame plate, a driving wheel is sleeved on the output shaft of the driving motor, a transmission horizontal shaft is arranged across the frame below the driving motor, a driven wheel is sleeved on the transmission horizontal shaft just below the driving wheel, the driving wheel and the driven wheel are connected by a transmission belt, gears are sleeved on the left and right ends of the transmission horizontal shaft, and a top rotating disk with a smooth radial outer peripheral surface is installed just above each gear on the top of the frame plate; large circulating chains are arranged on the left and right sides of the frame plate from top to bottom, which are wound between the top rotating disk and the gears, and a number of vehicle carriers are suspended by the large circulating chains through a number of vehicle carrier triangle plates. Since the vertical circulation stereo garage is a multi-layered setting, it carries a large number of vehicles and requires a large transmission force. When the transmission belt is subjected to a huge transmission force, the driving motor is prone to burn out. In addition, if the load on the left side of the large circulating chain is not equal to the load on the right side, under the action of gravity, the large circulating chain will drive the vehicle carrier to rotate toward the side with the heavier load, causing uncontrolled rotation of the vehicle carrier, posing a huge safety hazard.

[0004] The patent with publication number CN209924537U discloses a vertical circulation stereo garage with an overload device, including a vertical circulation stereo garage body, a supporting top plate, a supporting bottom plate and an overload detection mechanism. The vertical circulation stereo garage body includes a parking rack, the supporting bottom plate is fixedly arranged on the ground below the vertical circulation stereo garage, and the overload detection mechanism is arranged on the upper surface of the supporting bottom plate; the hydraulic cylinder arranged in the load detection mechanism can effectively prevent the garage from being damaged when a car with excessive weight enters the parking rack; the load sensor arranged in the load detection mechanism can measure the weight of the car entering the parking rack in real time, and then display whether the car weight exceeds the standard through an indicator light, thereby ensuring parking safety. The overload limiting device can only prevent cars with excessive weight from entering the parking rack, and cannot reflect the real-time load situation of the vertical circulation stereo garage as a whole.

[0005] At present, the known vertical circulation multi-story parking garage has strict load restrictions, but because the large circulating chains are in motion and need to be adjusted and tensioned during long-term use, there is a lack of effective devices for monitoring the precise load conditions of the vehicle carriers on the two circulating chains of the vertical circulation multi-story parking garage during operation. Summary of the invention

[0006] The purpose of the utility model is to provide an overload limiter for a vertical circulation stereoscopic car park in view of the deficiencies in the prior art, which can adjust the tension state of the large circulation chain and accurately monitor the load conditions of the vehicle carriers on the two large circulation chains of the vertical circulation stereoscopic car park at any time during operation.

[0007] The technical solution adopted by the utility model is as follows.

[0008] A vertical circulation stereo garage overload limiter, the vertical circulation stereo garage comprises a frame, the frame comprises two mutually parallel frame pieces, the top of each frame piece is movably connected with a lifting plate for supporting a large circulation chain of the vertical circulation stereo garage, characterized in that: each frame piece is connected to at least two weight sensors through an adjustable height device, the top of each weight sensor is in close contact with the lifting plate on the frame piece, and each weight sensor is connected to the control system of the vertical circulation stereo garage through a cable.

[0009] The beneficial effects of the utility model are as follows: each weight sensor is lifted by the adjustable height device, and each weight sensor lifts the lifting plate to fully tighten the large circulating chain of the vertical circulation stereo garage, which helps the drive system to be closely combined with the large circulating chain, reduces the wear during the driving process of the large circulating chain, and makes the large circulating chain drive safely, with low noise and low energy consumption. Since the large circulating chain bears the load of all vehicle carriers and the vehicles parked therein, and when the large circulating chain is tightened by the lifting plate, each weight sensor can accurately measure the load of the vertical circulation stereo garage. At least two weight sensors are installed on each frame of the large circulating chain, which can monitor the load of the two large circulating chains of the vertical circulation stereo garage at any time, and transmit the load information to the control system of the vertical circulation stereo garage. When the load data is abnormal, such as overload, unbalanced load, etc., the control system of the vertical circulation stereo garage can stop the drive system from driving the large circulating chain, thereby protecting the drive system of the large circulating chain of the vertical circulation stereo garage from overload operation and preventing safety accidents. As a preferred technical solution, a control circuit module is provided on the weight sensor; the control circuit module is connected to the control system of the vertical circulation stereo garage via a connecting cable.

[0010] As a preferred technical solution, a vertical plate is provided at the top of each frame piece; a lifting plate is movably installed on one side surface of each vertical plate; and each weight sensor is in close contact with the bottom end of the lifting plate on the frame piece.

[0011] As a preferred technical solution, a lifting plate is movably installed on the side of each vertical plate close to another vertical plate;

[0012] The adjustable height device includes a plurality of protrusions and a movable plate. The plurality of protrusions are fixed below the lifting plate on the inner side surface of the vertical plate on each frame piece. A first threaded hole is vertically provided on each protrusion. A threaded lifting adjustment device is threadedly connected to each first thread. The top of each threaded lifting adjustment device is in close contact with the bottom of the movable plate. A plurality of weight sensors are installed on the movable plate. The threaded lifting adjustment device is an adjusting bolt or an adjusting stud.

[0013] or,

[0014] The adjustable height device includes a plurality of protrusions and a movable plate. The plurality of protrusions are fixed on the inner side surface of the vertical plate on each frame piece below the lifting plate. A first vertical rod with a thread is vertically arranged on each protrusion. A threaded lifting adjustment device is threadedly connected to each first vertical rod. The top of each threaded lifting adjustment device is in close contact with the bottom of the movable plate. A plurality of weight sensors are installed on the movable plate. The threaded lifting adjustment device is a sleeve with an internal thread.

[0015] or,

[0016] The adjustable height device includes a support frame and a movable plate. The support frame is fixed below the lifting plate on the inner side surface of the vertical plate on each frame piece. A plurality of second threaded holes are vertically arranged on the support frame. A threaded lifting adjustment device is threadedly connected to each second thread. The top of each threaded lifting adjustment device is in close contact with the bottom of the movable plate. A plurality of weight sensors are installed on the movable plate. The threaded lifting adjustment device is an adjusting bolt or an adjusting stud.

[0017] or,

[0018] The adjustable height device includes a support frame and a movable plate. The support frame is fixed on the inner side of the vertical plate on each frame piece below the lifting plate. A plurality of second vertical poles with threads are vertically arranged on the support frame. A threaded lifting adjustment device is threadedly connected to each second vertical pole. The top of each threaded lifting adjustment device is in close contact with the bottom of the movable plate. A plurality of weight sensors are installed on the movable plate. The threaded lifting adjustment device is a sleeve with internal threads.

[0019] or,

[0020] The adjustable height device includes a support frame and a movable plate. The support frame is fixed below the lifting plate on each frame sheet. A plurality of third threaded holes are vertically arranged on the support frame. A threaded lifting adjustment device is threadedly connected to each third thread. The top of each threaded lifting adjustment device is in close contact with the bottom of the movable plate. A plurality of weight sensors are installed on the movable plate. The threaded lifting adjustment device is an adjusting bolt or an adjusting stud.

[0021] or,

[0022] The adjustable height device includes a support frame and a movable plate. The support frame is fixed below the lifting plate on each frame piece. A plurality of third vertical poles with threads are vertically arranged on the support frame. A threaded lifting and adjusting device is threadedly connected to each third vertical pole. The top of each threaded lifting and adjusting device is in close contact with the bottom of the movable plate. A plurality of weight sensors are installed on the movable plate. The threaded lifting and adjusting device is a sleeve with an internal thread.

[0023] As a preferred technical solution, each lifting plate is movably mounted on the vertical plate closest to it through a guiding device.

[0024] As a preferred technical solution, the guide device includes a plurality of long through holes arranged on the lifting plate, and the long side of each long through hole is perpendicular to the ground; each vertical plate is connected to the lifting plate closest to it by connecting bolts and each connecting bolt passes through a long through hole respectively.

[0025] As a preferred technical solution, cards are mounted on the inner side of the lifting plate and the outer side of the vertical plate on each connecting bolt.

[0026] As an optimal technical solution, a protruding strip is provided at the bottom of each lifting plate, and the bottom surface of the protruding strip is parallel to the ground; the top of each rotating thread lifting adjustment device is in close contact with the protruding strip of the lifting plate closest to it.

[0027] As an optimal technical solution, a strain gauge is provided on the top of the weight sensor, and the strain gauge is connected to the control circuit module arranged in the weight sensor; the top of the strain gauge is in close contact with the lifting plate; the control circuit module is connected to the control system of the vertical circulation stereo garage through a connecting cable.

[0028] As a preferred technical solution, the control circuit module includes an operational amplifier and a control actuator. When the load reaches the set value of its rated load, the control actuator sends a signal to the control system of the vertical circulation stereo garage.

[0029] As a preferred technical solution, each weight sensor is provided with a first alarm device; the control circuit module includes an audible and visual alarm circuit, which is connected to the first alarm device; the first alarm device includes a first warning light or a first alarm bell,

[0030] or,

[0031] A second alarm device is arranged on the frame, and each control circuit module or the control system of the vertical circulation stereo garage is connected to the second alarm device; the second alarm device includes a second warning light or a second alarm bell.

[0032] As a preferred technical solution, a load display device is provided on the frame, and each control circuit module or the control system of the vertical circulation stereo garage is connected to the load display device.

[0033] As a preferred technical solution, each lifting plate is equipped with a circulating large chain support device, and the circulating large chain is connected to the circulating large chain support device, and the circulating large chain support device is a passive support wheel or a passive support turntable.

[0034] or,

[0035] The top surface of the lifting plate is in an arc shape with an opening facing downward, and the inner peripheral surface of the circulating large chain contacts the top surface of the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The utility model is a three-dimensional structural schematic diagram of a preferred embodiment of an overload limiter for a vertical circulation stereoscopic garage installed on a vertical circulation stereoscopic garage. Figure 2 yes Figure 1 A partial enlarged view of part A. Figure 3 yes Figure 2 A partial enlarged view of part D. Figure 4 yes Figure 1 A partial enlarged view of part B. Figure 5 yes Figure 4 A partial enlarged view of part E. Figure 6 yes Figure 4 A partial enlarged view of part F. Figure 7 yes Figure 1 A partial enlarged view of part C. Figure 8 yes Figure 7 A partial enlarged view of part G. Fig. 9 yes Figure 1 The vertical circulation multi-story parking garage is shown in a right view of the left shelf. Fig.10 yes Fig. 9 A partial enlarged view of part H. Fig.11 yes Fig.10 A partial enlarged view of part J. Fig.12 yes Fig. 9 A partial enlarged view of part I. Fig.13 yes Figure 1 A rear view of an overload limiter installed on a vertical circulation multi-story parking garage is shown. Fig.14 yes Figure 1 A top view of an overload limiter installed on a vertical circulation parking garage is shown. Fig.15 yes Figure 1 A right view of an overload limiter installed on a vertical circulation parking garage is shown. Fig.16 yes Fig.15 A partial enlarged view of part K. Fig.17 yes Fig.15 A partial enlarged view of the L part. Fig.18 The utility model is a schematic diagram of the working principle of a preferred embodiment of the overload limiter. Fig.19 It is a schematic diagram of a preferred embodiment of the overload limiter of the utility model. Fig. 20 The utility model is a schematic diagram of the working principle of a preferred embodiment of the overload limiter.

[0037] Fig.21 It is a schematic diagram of a preferred embodiment of the overload limiter of the utility model. Fig. 22 yes Fig.21 A partial enlarged view of part M. Fig.23 yes Fig. 22 A local enlarged view of part N. Fig.24 It is a schematic diagram of a preferred embodiment of the overload limiter of the utility model. Fig.25 yes Fig.24 A partial enlarged view of part O. Fig.26 It is a schematic diagram of a preferred embodiment of the overload limiter of the utility model. Fig. 27 yes Fig.26 A partial enlarged view of part P. Fig.28 It is a schematic diagram of a preferred embodiment of the overload limiter of the utility model. Fig.29 yes Fig.28 A partial enlarged view of the Q part. Fig.30 yes Fig.29 A partial enlarged view of the R part. Fig.31 It is a schematic diagram of a preferred embodiment of the overload limiter of the utility model. Fig.32 yes Fig.31 A local enlarged view of the S part.

[0038] Among them: frame piece - 1; vertical plate - 11;

[0039] Lifting plate-2; long through hole-21; protruding strip in the lifting plate-22; cylindrical boss-23;

[0040] Circulating large chain support device-3; inner ring-31; outer ring-32; groove-33; fixing screw-34;

[0041] Weight sensor-4; strain gauge-40; operational amplifier-41; control actuator-42; first alarm device-43; load display device-44; second alarm device-45;

[0042] Movable plate-51; protrusion-52; threaded lifting and lowering adjustment device-53; support frame-54; first vertical pole-55; second vertical pole-56; third vertical pole-57;

[0043] Control system-6;

[0044] Connecting bolt-7;Card-71;

[0045] Circular large chain-8; chain plate-81; pin-82; roller-83; vehicle-carrying triangle plate-84;

[0046] Main transmission shaft-91; large sprocket-92; transmission chain-93; reduction motor-94; power output wheel-95; transmission wheel-96; circulating large chain driving wheel-97. DETAILED DESCRIPTION

[0047] Below, the utility model is further described in conjunction with the drawings and embodiments.

[0048] Example 1. Figure 1-18 As shown, an overload limiter for a vertical circulation multi-story parking garage comprises a frame, which comprises two parallel frame plates 1, and the top of each frame plate 1 is movably connected with a lifting plate 2 for supporting a large circulating chain 8 of the vertical circulation multi-story parking garage. It is characterized in that each frame plate 1 is connected to two weight sensors 4 through an adjustable height device, and the top of the two weight sensors 4 is in close contact with the lifting plate 2 on the frame plate 1.

[0049] A vertical plate 11 is provided at the top of the frame 1; a lifting plate 2 is movably mounted on one side of each vertical plate 11; each weight sensor 4 is in close contact with the bottom of the lifting plate 2 on the frame 1. Each weight sensor 4 is connected to a control system 6 of the vertical circulation stereo garage through a cable.

[0050] Specifically, a lifting plate 2 is movably mounted on the side of each vertical plate 11 close to another vertical plate 11, and the inner side of the vertical plate 11 is the side of the vertical plate 11 close to another vertical plate 11. A lifting plate 2 is movably mounted on one side of each vertical plate 11, and the two weight sensors 4 on each frame plate 1 are in close contact with the bottom end of the lifting plate 2.

[0051] The adjustable height device includes three protrusions 52 and a movable plate 51. The protrusions 52 are fixed below the lifting plate 2 on the inner side surface of the vertical plate 11 on each frame piece. A first threaded hole is vertically provided on each protrusion 52. A threaded lifting adjustment device 53 is threadedly connected to each first thread. The top of each threaded lifting adjustment device 53 is in close contact with the bottom end of the movable plate 51. A number of weight sensors 4 are installed on the movable plate 51. The threaded lifting adjustment device 53 is an adjusting bolt.

[0052] Two weight sensors 4 are mounted on both ends of each movable plate 51. The top surface of the movable plate 51 is parallel to the ground.

[0053] Each lifting plate 2 is movably mounted on the vertical plate 11 closest thereto through a guiding device.

[0054] The guide device includes six long through holes 21 arranged on the lifting plate 2, and the long side of each long through hole 21 is perpendicular to the ground; each vertical plate 11 is connected to the lifting plate 2 closest thereto by connecting bolts 7, and each connecting bolt 7 passes through a long through hole 21 respectively.

[0055] Each connecting bolt 7 is provided with a card 71 on the inner side surface of the lifting plate 2 and the outer side surface of the vertical plate 11 .

[0056] The bottom end of each lifting plate 2 is provided with a lifting plate inner protruding strip 22, and the bottom surface of the lifting plate inner protruding strip 22 is parallel to the ground; the top end of each rotating thread lifting adjustment device 53 is in close contact with the lifting plate inner protruding strip 22 closest thereto.

[0057] A strain gauge 40 is provided at the top of the weight sensor 4, and the strain gauge 40 is connected to a control circuit module provided in the weight sensor 4; the top of the strain gauge 40 is in close contact with the lifting plate 2; the control circuit module is connected to the control system of the vertical circulation stereo garage through a connecting cable. The strain gauge 40 is in contact with the protruding strip 22 in the lifting plate.

[0058] The control circuit module includes an operational amplifier 41 and a control actuator 42. When the load reaches a set value of its rated load, the control actuator 42 sends a signal to a control system of the vertical circulation stereo garage.

[0059] Each weight sensor 4 is provided with a first alarm device 43; the control circuit module includes an audible and visual alarm circuit, which is connected to the first alarm device 43; the first alarm device 43 includes a first warning light.

[0060] A circulating large chain supporting device 3 is installed on each lifting plate 2, and a circulating large chain 8 is connected to the circulating large chain supporting device 3, and the circulating large chain supporting device 3 is a passive supporting turntable.

[0061] A cylindrical boss 23 is provided on the inner side surface of each lifting plate 2; each circulating large chain rotating support device 3 includes an inner ring 31 and an outer ring 32 rotatably mounted on the inner ring 31, and a ring array of grooves 33 engaging with the circulating large chain 8 of the vertical circulating stereo garage is provided on the radial outer peripheral surface of the outer ring 32; the cylindrical boss 23 is inserted into the inner ring 31 and has an interference fit with the inner ring 31; the inner ring 31 is connected to the lifting plate 2 by a plurality of fixing screws 34 perpendicular to the lifting plate 2.

[0062] The large circulating chain 8 includes a plurality of chain links, some of which include a group of chain plates 81 of equal length and parallel to each other, and some of which include a chain plate 81 and a vehicle-carrying triangular plate 84 whose inner edge is parallel to the chain plate 81 and of equal length.

[0063] Two adjacent chain links are hinged by a pin 82; each pin 82 is fitted with a roller 83, the spacing between the center axes of two adjacent pins 82 is equal to the spacing between the bottom centers of two adjacent grooves 33 of the outer ring 32, and the roller 83 at the top of the circulating large chain 8 is inserted into the groove 33 at the top of the outer ring 32.

[0064] The two frames 1 of the vertical circulation stereo garage are connected with a main transmission shaft 91, which is arranged horizontally, and each frame 1 is perpendicular to the main transmission shaft 91; a large sprocket 92 is arranged on the main transmission shaft 91 of the vertical circulation stereo garage, and the large sprocket 92 is connected to the power output wheel 95 of the reduction motor 94 of the vertical circulation stereo garage through a transmission chain 93; transmission wheels 96 are arranged at both ends of the main transmission shaft 91, and a circulating large chain driving wheel 97 meshing with the transmission wheel 96 is arranged below each transmission wheel 96; each circulating large chain driving wheel 97 is respectively connected to the lower end of the inner side of a circulating large chain 8. Both frames 1 are connected to two weight sensors 4 through an adjustable height device, and the top of each weight sensor 4 is in close contact with the lifting plate 2 on the frame 1, and the installation structure of the two frames 1 is left-right mirrored.

[0065] A plurality of protrusions 86 are provided at equal distances on the short side of each large circulating chain 8 near another large circulating chain 8, and a plurality of grooves 971 corresponding to the protrusions 86 are provided on the radial outer peripheral surface of the large circulating chain driving wheel 97. When the large circulating chain 8 rotates, the protrusions 86 can be sequentially inserted into the grooves 971 of the large circulating chain driving wheel 97. A vehicle-carrying shaft mounting hole 85 is provided on the vehicle-carrying triangle plate 84.

[0066] A vehicle-carrying shaft is installed between the vehicle-carrying shaft installation holes 85 at the same height of the two circulating large chains 8, and a vehicle-carrying frame is installed on each vehicle-carrying shaft, which is not shown in the figure. The two frame plates 1 are arranged longitudinally.

[0067] Example 2. Fig.19 As shown, the difference between this embodiment and embodiment 1 is that the thread lifting adjustment device 53 is an adjustment stud. The first alarm device includes a first alarm bell.

[0068] Example 3. Figure 20-23 As shown, the difference between this embodiment and embodiment 1 is that the top surface of the lifting plate 2 is in an arc shape with an opening facing downward, and the inner circumferential surface of the circulating large chain 8 is in contact with the top surface of the lifting plate 2.

[0069] The adjustable height device includes a plurality of protrusions 52 and a movable plate 51. The three protrusions 52 are fixed below the lifting plate 2 on the inner side of the vertical plate 11 on each frame piece. A first vertical rod 55 with a thread is vertically arranged on each protrusion 52. A threaded lifting adjustment device 53 is threadedly connected to each first vertical rod 55. The top of each threaded lifting adjustment device 53 is in close contact with the bottom of the movable plate 51. A plurality of weight sensors 4 are installed on the movable plate 51. The threaded lifting adjustment device 53 is a sleeve with an internal thread. A second alarm device 45 is arranged on the frame. Each control circuit module or the control system of the vertical circulation stereo garage is connected to the second alarm device 45. The second alarm device 45 includes a second warning light.

[0070] A load display device 44 is provided on one of the racks 1, and each control circuit module or the control system of the vertical circulation stereo garage is connected to the load display device 44. This embodiment only shows the installation structure of the movable plate 51 and each weight sensor 4 on one of the two racks 1, and the installation structure of the movable plate 51 and each weight sensor 4 on the other rack 1 is the same as the installation structure of the movable plate 51 and each weight sensor 4 shown.

[0071] Example 4. Figure 24-25 As shown, the difference between this embodiment and embodiment 3 is that the adjustable height device includes a support frame 54 and a movable plate 51. The support frame 54 is fixed below the lifting plate 2 on each frame sheet 1. The support frame 54 is vertically provided with a plurality of third threaded holes. Each third thread is threadedly connected with a threaded lifting adjustment device 53. The top of each threaded lifting adjustment device 53 is in close contact with the bottom of the movable plate 51. Three weight sensors 4 are installed on the movable plate 51. The threaded lifting adjustment device 53 is an adjustment stud. The inner end of each circulating large chain 8 is not provided with a protrusion near another circulating large chain 8. The circulating large chain driving wheel 97 directly drives the roller 83 on the pin shaft 82. The second alarm device includes a second alarm bell.

[0072] Example 5. Figure 26-27 As shown, the difference between this embodiment and embodiment 3 is that the adjustable height device includes a support frame 54 and a movable plate 51. The support frame 54 is fixed below the lifting plate 2 on the inner side surface of the vertical plate 11 on each frame piece. Three second threaded holes are vertically arranged on the support frame 54. A threaded lifting adjustment device 53 is threadedly connected to each second thread. The top of each threaded lifting adjustment device 53 is in close contact with the bottom end of the movable plate 51. Two weight sensors 4 are installed on the movable plate 51. The threaded lifting adjustment device 53 is an adjusting bolt.

[0073] Example 6. Figure 28-30As shown, the difference between this embodiment and embodiment 1 is that the circulating large chain support device 3 is a passive support wheel. The adjustable height device includes a support frame 54 and a movable plate 51. The support frame 54 is fixed below the lifting plate 2 on each frame sheet 1. A plurality of third vertical rods 57 with threads are vertically arranged on the support frame 54. Each third vertical rod 57 is threadedly connected with a threaded lifting adjustment device 53. The top of each threaded lifting adjustment device 53 is in close contact with the bottom of the movable plate 51. Two weight sensors 4 are installed on the movable plate 51. The threaded lifting adjustment device 53 is a sleeve with internal threads.

[0074] Example 7. Figure 31-32 As shown, the difference between this embodiment and embodiment 6 is that the adjustable height device includes a support frame 54 and a movable plate 51. The support frame 54 is fixed below the lifting plate 2 on the inner side surface of the vertical plate 11 on each frame piece 1. A plurality of second vertical rods 56 with threads are vertically arranged on the support frame 54. A threaded lifting adjustment device 53 is threadedly connected to each second vertical rod 56. The top of each threaded lifting adjustment device 53 is in close contact with the bottom end of the movable plate 51. Two weight sensors 4 are installed on the movable plate 51. The threaded lifting adjustment device 53 is a sleeve with an internal thread.

Claims

1. An overload limiter for a vertical circulation stereo garage, the vertical circulation stereo garage comprising a frame, the frame comprising two parallel frame plates (1), the top of each frame plate (1) being movably connected to a lifting plate (2) for supporting a large circulation chain (8) of the vertical circulation stereo garage, characterized in that: Each frame piece (1) is connected to at least two weight sensors (4) via an adjustable height device, and the top of each weight sensor (4) is in close contact with a lifting plate (2) on the frame piece (1); each weight sensor (4) is connected to a control system (6) of a vertical circulation stereo garage via a cable.

2. The vertical circulation stereo garage overload limiter according to claim 1, characterized in that: A vertical plate (11) is provided at the top of each frame plate (1); a lifting plate (2) is movably mounted on one side surface of each vertical plate (11); and each weight sensor (4) is in close contact with the bottom end of the lifting plate (2) on the frame plate (1).

3. The vertical circulation stereo garage overload limiter as claimed in claim 2, characterized in that: A lifting plate (2) is movably mounted on the side of each upright plate (11) close to another upright plate (11); The adjustable height device comprises a plurality of protrusions (52) and a movable plate (51). The plurality of protrusions (52) are fixed below the lifting plate (2) on the inner side surface of the vertical plate (11) on each frame piece. A first threaded hole is vertically provided on each protrusion (52). A threaded lifting adjustment device (53) is threadedly connected to each first thread. The top end of each threaded lifting adjustment device (53) is in close contact with the bottom end of the movable plate (51). A plurality of weight sensors (4) are installed on the movable plate (51). The threaded lifting adjustment device (53) is an adjusting bolt or an adjusting stud. or, The adjustable height device comprises a plurality of protrusions (52) and a movable plate (51). The plurality of protrusions (52) are fixed below the lifting plate (2) on the inner side surface of the vertical plate (11) on each frame piece. A first vertical rod (55) with a thread is vertically arranged on each protrusion (52). A threaded lifting adjustment device (53) is threadedly connected to each first vertical rod (55). The top end of each threaded lifting adjustment device (53) is in close contact with the bottom end of the movable plate (51). A plurality of weight sensors (4) are installed on the movable plate (51). The threaded lifting adjustment device (53) is a sleeve with an internal thread. or, The adjustable height device comprises a support frame (54) and a movable plate (51). The support frame (54) is fixed below the lifting plate (2) on the inner side surface of the vertical plate (11) on each frame piece. A plurality of second threaded holes are vertically arranged on the support frame (54). A threaded lifting adjustment device (53) is threadedly connected to each second thread. The top end of each threaded lifting adjustment device (53) is in close contact with the bottom end of the movable plate (51). A plurality of weight sensors (4) are installed on the movable plate (51). The threaded lifting adjustment device (53) is an adjusting bolt or an adjusting stud. or, The height-adjustable device comprises a support frame (54) and a movable plate (51). The support frame (54) is fixed below the lifting plate (2) on the inner side surface of the vertical plate (11) on each frame piece. A plurality of second vertical rods (56) with threads are vertically arranged on the support frame (54). A threaded lifting adjustment device (53) is threadedly connected to each second vertical rod (56). The top end of each threaded lifting adjustment device (53) is in close contact with the bottom end of the movable plate (51). A plurality of weight sensors (4) are installed on the movable plate (51). The threaded lifting adjustment device (53) is a sleeve with an internal thread. or, The adjustable height device comprises a support frame (54) and a movable plate (51). The support frame (54) is fixed below the lifting plate (2) on each frame plate. A plurality of third threaded holes are vertically arranged on the support frame (54). A threaded lifting adjustment device (53) is threadedly connected to each third thread. The top end of each threaded lifting adjustment device (53) is in close contact with the bottom end of the movable plate (51). A plurality of weight sensors (4) are installed on the movable plate (51). The threaded lifting adjustment device (53) is an adjusting bolt or an adjusting stud. or, The height-adjustable device comprises a support frame (54) and a movable plate (51). The support frame (54) is fixed below the lifting plate (2) on each frame plate. A plurality of third vertical rods (57) with threads are vertically arranged on the support frame (54). Each third vertical rod (57) is threadedly connected with a threaded lifting adjustment device (53). The top end of each threaded lifting adjustment device (53) is in close contact with the bottom end of the movable plate (51). A plurality of weight sensors (4) are installed on the movable plate (51). The threaded lifting adjustment device (53) is a sleeve with an internal thread.

4. The vertical circulation stereo garage overload limiter as claimed in claim 3, characterized in that: Each lifting plate (2) is movably mounted on the vertical plate (11) closest to it via a guide device.

5. The vertical circulation stereo garage overload limiter as claimed in claim 4, characterized in that: The guide device comprises a plurality of long through holes (21) arranged on the lifting plate (2), the long side of each long through hole (21) being perpendicular to the ground; each upright plate (11) is connected to the lifting plate (2) closest thereto via a connecting bolt (7), and each connecting bolt (7) passes through a long through hole (21).

6. The vertical circulation stereo garage overload limiter as claimed in claim 5, characterized in that: Each connecting bolt (7) is provided with a card (71) on the inner side surface of the lifting plate (2) and the outer side surface of the vertical plate (11).

7. The vertical circulation stereo garage overload limiter as claimed in claim 2, characterized in that: The bottom end of each lifting plate (2) is provided with a lifting plate inner protruding strip (22), and the bottom surface of the lifting plate inner protruding strip (22) is parallel to the ground; the top end of each rotating thread lifting adjustment device (53) is in close contact with the lifting plate inner protruding strip (22) closest thereto.

8. The vertical circulation stereo garage overload limiter according to any one of claims 1 to 7, characterized in that: A strain gauge (40) is provided at the top of the weight sensor (4), and the strain gauge (40) is connected to a control circuit module arranged in the weight sensor (4); the top of the strain gauge (40) is in close contact with the lifting plate (2); and the control circuit module is connected to a control system of the vertical circulation stereo garage via a connecting cable.

9. The vertical circulation stereo garage overload limiter as claimed in claim 8, characterized in that: The control circuit module comprises an operational amplifier (41) and a control actuator (42). When the load reaches a set value of its rated load, the control actuator (42) sends a signal to a control system of the vertical circulation stereo garage.

10. The vertical circulation stereo garage overload limiter as claimed in claim 9, characterized in that: Each weight sensor (4) is provided with a first alarm device (43); the control circuit module includes an audible and visual alarm circuit, the audible and visual alarm circuit is connected to the first alarm device (43); the first alarm device (43) includes a first warning light or a first alarm bell, or, A second alarm device (45) is provided on the frame, and each control circuit module or the control system of the vertical circulation stereo garage is connected to the second alarm device (45); the second alarm device (45) includes a second warning light or a second alarm bell, or, A load display device (44) is provided on the frame, and each control circuit module or the control system of the vertical circulation stereo garage is connected to the load display device (44).

11. The vertical circulation stereo garage overload limiter according to any one of claims 1 to 7, characterized in that: A circulating large chain support device (3) is installed on each lifting plate (2), and the circulating large chain (8) is connected to the circulating large chain support device (3). The circulating large chain support device (3) is a passive support wheel or a passive support turntable. or, The top surface of the lifting plate (2) is in an arc shape with an opening facing downward, and the inner peripheral surface of the circulating large chain (8) contacts the top surface of the lifting plate (2).

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