Lift car overweight detection device

Abstract

The utility model relates to a lift car overweight detection device which comprises a detection box, the detection box is installed on a lift car through a supporting column, a sliding hole is formed in the top of the detection box, a lifting rod is arranged in the sliding hole in a penetrating mode, a trigger boss is arranged at the lower end of the lifting rod, and the diameter of the trigger boss is larger than that of the lifting rod. A reset spring is arranged between the lifting rod and the top wall of the detection box; a first microswitch is arranged at the bottom of the detection box and located under the hanging rod, a second microswitch is arranged on the side wall of the detection box and located on one side of the hanging rod, the second microswitch is connected with a trigger plate through a second trigger spring, and a roller is arranged at one end of the trigger plate and rolls on a trigger boss. A simple physical structure is used for detecting the load of the lift car.

Description

Technical Field

[0001] The utility model relates to an overweight detection device, in particular to an overweight detection device for a car. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The intelligent three-dimensional parking garage includes a vertical lifting parking device, which lifts the vehicle or the vehicle loading plate to the designated layer through the lifting mechanism, and then uses the device installed on the lifting machine to send the vehicle or the vehicle loading plate into or out of the parking space, thereby achieving the purpose of three-dimensional storage and retrieval of the vehicle;

[0004] The inventors understand the following technical problems:

[0005] During the vehicle lifting process, the vehicle exceeds the rated weight and cannot be detected, causing motor overload and damage to the motor, exceeding the safety factor of the equipment and causing danger. Existing overweight detection sensors are expensive and complex to install and maintain. Utility Model Content

[0006] The utility model aims to provide a detection box of a car overweight detection device, including a detection box, the detection box is installed on the car through a support column, a sliding hole is provided on the top of the detection box, a suspension rod is arranged through the sliding hole, a trigger boss is installed on the side wall of the suspension rod, the diameter of the trigger boss is larger than the diameter of the suspension rod, and a reset spring is arranged between the trigger boss and the top wall of the detection box;

[0007] A first micro switch is arranged at the bottom of the detection box and directly below the suspension rod, and a second micro switch is arranged at the side wall of the detection box and at one side of the suspension rod. The second micro switch is connected to the trigger plate through a second trigger spring. A roller is arranged at one end of the trigger plate, and the roller is located on the trigger boss.

[0008] It is further configured that a mounting tube is fixedly mounted above the trigger boss, the lower end of the reset spring is connected to the upper wall of the trigger boss, and the upper end of the reset spring is connected to the inner wall of the detection box.

[0009] It is further configured that a first detection box and a second detection box are respectively arranged on the support column, the roller in the first detection box contacts the trigger boss in the center, and the roller in the second detection box contacts the top side wall of the trigger boss.

[0010] It is further configured that a limiting boss is arranged below the triggering boss, the limiting boss is fixedly mounted on the side wall of the suspension rod, and the triggering boss is fixedly mounted on the upper side wall of the limiting boss.

[0011] It is further configured that the detection box is a hollow rectangular box body.

[0012] It is further configured that the detection boxes are respectively arranged at the four corners of the car through support columns.

[0013] It is further configured that a chain is fixedly installed on the upper end of the suspension rod.

[0014] It is further configured that the first micro switch is provided with a first trigger spring, and the suspension rod is movably connected to the first trigger spring.

[0015] It is further configured that a lug plate is provided at the other end of the trigger plate, and the lug plate is hinged to the second micro switch.

[0016] It is further configured that the diameter of the mounting cylinder is smaller than the diameter of the triggering boss.

[0017] Beneficial effects of one or more of the above technical solutions:

[0018] The utility model has a simple structure, and triggers the first detection box and the second detection box in sequence to trigger two micro switches in different positions. The car load is detected by using a simple physical structure, and vehicle detection is completed by the arrangement of micro switches. The installation and maintenance are simple, and timely power-off protection is performed to avoid danger caused by overload and casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a side sectional view of the detection box of the utility model.

[0022] Figure 3 This is a schematic diagram of the installation of the first detection box of the utility model.

[0023] Figure 4 This is a schematic diagram of the installation of the second detection box of the utility model.

[0024] In the figure, 1 is a detection box; 11 is a limiting boss; 12 is a mounting tube; 13 is a return spring; 14 is a first detection box; 15 is a second detection box;

[0025] 2 sliding holes;

[0026] 3 suspension rod; 31 chain; 21 trigger boss;

[0027] 4 first micro switch; 41 first trigger spring;

[0028] 5 second micro switch; 51 second trigger spring; 52 trigger plate; 521 trigger rod; 53 ear plate; 54 roller;

[0029] 6 Support columns; 7 Car. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 , describing the specific implementation of this embodiment.

[0031] The embodiment of the present application provides an overweight detection device for a car 7, comprising a detection box 1, which is installed on the car 7 through a support column 6, a sliding hole 2 is provided on the top of the detection box 1, a suspension rod 3 is provided through the sliding hole 2, a trigger boss 21 is provided on the side wall of the suspension rod 3, the diameter of the trigger boss 21 is larger than the diameter of the suspension rod 3, a reset spring 13 is provided between the trigger boss 21 and the top wall of the detection box 1, under the action of the gravity of the car 7, displacement occurs between the suspension rod 3 and the detection box 1, the top wall of the detection box 1 can compress the reset spring 13, and the first micro switch 4 and the second micro switch 5 are triggered by the displacement, so as to perform overweight detection, and the elastic force of the spring can ensure that the device automatically resets after completing the detection;

[0032] A first micro switch 4 is arranged at the bottom of the detection box 1 and directly below the suspension rod 3, and a second micro switch is arranged at the side wall of the detection box 1 and at one side of the suspension rod 3. The second micro switch is connected to the trigger plate 52 through a second trigger spring 51. A roller 54 is arranged at one end of the trigger plate 52. The roller 54 can roll along the trigger boss 21. In the initial state, the roller 54 contacts the trigger boss 21. When overweight occurs, the suspension rod 3 and the detection box 1 are displaced by a certain distance. When the roller 54 slides out of the trigger boss 21, the roller 54 moves downward under the elastic force of the second trigger spring 51. The limit boss 11 extends a short distance into the direction of the limit boss 11. At this time, the trigger rod 521 set on one side of the trigger plate 52 changes from the contact state of the second microswitch 5 to the separation state, and the second microswitch 5 reacts. At this time, it is an overweight state, and the equipment stops running. When the heavy object leaves the car, the detection box resets upward under the action of the reset spring 13, driving the roller to move upward. Since the roller 54 only extends a short distance into the limit boss 11, the limit boss 11 squeezes the roller 54 below when the roller 54 moves upward, and the roller 54 rotates and moves to the side wall of the limit boss 11 at the same time.

[0033] A mounting tube 12 is fixedly mounted above the trigger boss 21 , the lower end of the reset spring 13 is connected to the upper side wall of the trigger boss 21 , and the upper end of the reset spring 13 is connected to the inner side wall of the detection box 1 .

[0034] The support column 6 is provided with a first detection box 14 and a second detection box 15, respectively. The roller 54 in the first detection box 14 contacts the trigger boss 21 in the center, and the roller 54 in the second detection box 15 contacts the top side wall of the trigger boss 21. Since the initial contact positions of the rollers on the first detection box 14 and the second detection box 15 are different, the height of the roller 54 in the first detection box 14 is higher than the height of the roller 54 in the second detection box 15. When the roller 54 in the first detection box 14 slides off the trigger boss 21, it is the first overweight state. In this embodiment, the overweight state is when the vehicle weight reaches the rated weight. When the roller 54 in the second detection box 15 slides off the trigger boss 21, it is the second overweight state. In this embodiment, the overweight state is that the vehicle weight reaches 110% of the rated weight. The voice prompts that the vehicle is overweight, reminding the driver to drive the vehicle out of the garage. The equipment automatically cuts off the power for protection and stops running. After the vehicle leaves the garage, the equipment is reconnected and operates normally. The installation height of the second micro switch 15 in the first detection box 14 and the second detection box 15 can be adjusted here.

[0035] A limiting boss 11 is arranged below the triggering boss 21 . The limiting boss 11 is fixedly mounted on the side wall of the suspension rod 3 . The triggering boss 21 is fixedly mounted on the upper side wall of the limiting boss 11 .

[0036] The detection box 1 is a hollow rectangular box body, and the box body is set to be a hollow rectangle to provide installation space for internal components.

[0037] The detection boxes 1 are respectively arranged at the four corners of the car 7 through the support columns 6, so as to ensure that the four detection boxes 1 are subjected to uniform force, thereby being able to suspend the car 7 more effectively.

[0038] A chain 31 is fixedly installed on the upper end of the suspension rod 3, and the chain 31 can lift the entire car 7 under the drive of the sprocket wheel.

[0039] The trigger boss 21 has a diameter greater than the sliding hole 2 , and this arrangement ensures that the suspension rod 3 can be limited in the vertical direction.

[0040] The first micro switch 4 is provided with a first trigger spring 41 , the suspension rod 3 is movably connected to the first trigger spring 41 , and in an initial state, the end of the suspension rod 3 contacts the first trigger spring 41 of the first micro switch 4 .

[0041] The other end of the trigger plate 52 is provided with an ear plate 53 , which is hinged to the second micro switch 5 . The hinge of the ear plate 53 ensures that the trigger plate 52 can effectively change its distance when it is pressed, thereby compressing the second trigger spring 51 .

[0042] The first micro switch and the second micro switch in this embodiment adopt the existing switch model SF-7141, which includes a trigger spring, a trigger plate, a trigger rod, an ear plate and a roller; the structure, the triggering principle of the trigger rod is the existing technology and will not be explained here.

[0043] The diameter of the installation tube 12 is smaller than the diameter of the trigger boss 21 , and the trigger boss 21 provides installation space for the installation tube.

[0044] Working principle:

[0045] In the initial state, the end of the suspension rod 3 contacts the first trigger spring 41 of the first micro switch 4, and the roller 54 contacts the suspension rod 3. When the detection box 1 is pulled downward by the car 7, the detection box 1 moves downward, and the suspension rod 3 does not move. The pulling force compresses the reset spring 13, and the suspension rod 3 is separated from the first trigger spring 41 of the first micro switch 4. At this time, it is detected that the vehicle has traveled into the car.

[0046] When the roller 54 in the first detection box 14 slides off the trigger boss 21, it is the first overweight state. In this embodiment, the overweight state is that the vehicle weight reaches 90% of the rated weight, and the equipment starts to run normally. At this time, the roller 54 in the second detection box 15 is still in contact with the trigger boss. When the roller 54 in the second detection box 15 slides off the trigger boss 21, it is the second overweight state. In this embodiment, the overweight state is that the vehicle weight reaches 110% of the rated weight. A voice prompt is given that the vehicle is overweight, reminding the driver to drive the vehicle out of the garage. The equipment automatically cuts off the power for protection and stops running. After the vehicle drives out of the garage, the equipment is reconnected and runs normally.

[0047] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A car overweight detection device, characterized in that: It includes a detection box installed above the car through a support column, a sliding hole is provided on the top of the detection box, a suspension rod is provided through the sliding hole, a trigger boss is installed on the side wall of the suspension rod, the diameter of the trigger boss is larger than the diameter of the suspension rod, and a reset spring is provided between the trigger boss and the top wall of the detection box; A first micro switch is arranged at the bottom of the detection box and directly below the suspension rod, and a second micro switch is arranged at the side wall of the detection box and at one side of the suspension rod. The second micro switch is connected to the trigger plate through a second trigger spring. A roller is arranged at one end of the trigger plate, and the roller is located on the trigger boss.

2. The car overweight detection device according to claim 1, characterized in that: A mounting tube is fixedly mounted above the trigger boss, the lower end of the reset spring is connected to the upper side wall of the trigger boss, and the upper end of the reset spring is connected to the inner side wall of the detection box.

3. The car overweight detection device according to claim 1, characterized in that: A first detection box and a second detection box are respectively arranged on the support column. The roller in the first detection box contacts the trigger boss in the center, and the roller in the second detection box contacts the top side wall of the trigger boss in the center.

4. The car overweight detection device according to claim 1, characterized in that: A limiting boss is arranged below the triggering boss, the limiting boss is fixedly mounted on the side wall of the suspension rod, and the triggering boss is fixedly mounted on the side wall of the limiting boss.

5. The car overweight detection device according to claim 1, characterized in that: The detection box is a hollow rectangular box body.

6. The car overweight detection device according to claim 1, characterized in that: The detection boxes are respectively arranged at the four corners of the car through support columns.

7. The car overweight detection device according to claim 1, characterized in that: A chain is fixedly installed on the upper end of the suspension rod.

8. The car overweight detection device according to claim 1, characterized in that: The first micro switch is provided with a first trigger spring, and the suspension rod is movably connected to the first trigger spring.

9. The car overweight detection device according to claim 1, characterized in that: The other end of the trigger plate is provided with an ear plate, and the ear plate is hinged to the second micro switch.

10. The car overweight detection device according to claim 2, characterized in that: The diameter of the mounting cylinder is smaller than the diameter of the trigger boss.

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