A wheel-pressure type mechanical induction switch

Abstract

The present invention relates to a wheel-pressure type mechanical induction switch, which includes a fixed frame, a bent pressure rod, a rotating shaft, a return spring and a proximity switch. The fixed frame is arranged on the plane to be pressed; the bent pressure rod includes a first rod and a second rod arranged at an included angle, and a hinge hole is arranged at the connection of the first rod and the second rod; the rotating shaft is fixedly arranged on the fixed frame, the rotating shaft passes through the hinge hole and is hinged to the bent pressure rod, the rotating shaft is horizontally arranged, the bent pressure rod includes a first position and a second position, when the bent pressure rod is subjected to wheel pressure, the bent pressure rod rotates around the rotating shaft from the first position to the second position. This induction switch can start the equipment according to whether it is subjected to wheel pressure and can automatically turn off after the vehicle drives away.

Description

Technical Field

[0001] The present invention relates to an induction switch, and more particularly to a wheel-pressure mechanical induction switch. Background Art

[0002] With the continuous improvement of the environmental protection requirements for clean transportation, it is necessary to wash the engineering vehicles before they drive on the road to ensure the cleanliness of the road environment. During the research on the engineering vehicle car wash machine, it is found that the light-sensing contact switch cannot adapt to the harsh working conditions on site, and the failure rate is relatively high during actual use, and there are many phenomena of mis-starting of the car wash equipment. Summary of the Invention

[0003] The purpose of the present invention is to provide an induction switch that can prevent misoperation of the car wash equipment and automatically turn on and off. To achieve the above purpose, the present invention provides a wheel-pressure mechanical induction switch, which can start the equipment according to whether it is subjected to wheel pressure and can automatically turn off after the vehicle drives away.

[0004] The technical solution adopted by the present invention is as follows: A wheel-pressure mechanical induction switch includes

[0005] A fixed frame, arranged on the plane to be pressed;

[0006] A bent pressing rod, the pressing plate includes a first rod and a second rod arranged at an angle, and a hinge hole is arranged at the connection of the first rod and the second rod;

[0007] A rotating shaft, fixedly arranged on the fixed frame, the rotating shaft passes through the hinge hole and is hinged to the bent pressing rod, the rotating shaft is horizontally arranged, the bent pressing rod includes a first position and a second position, when the bent pressing rod is subjected to wheel pressure, the bent pressing rod rotates around the rotating shaft from the first position to the second position;

[0008] A return spring, one end is connected to the end of the second rod away from the first rod, and the other end is fixed on the fixed frame, and the return spring is used to reset the bent pressing rod from the second position to the first position;

[0009] A proximity switch, arranged on the fixed frame, after the bent pressing rod rotates to the second position, the proximity switch is triggered.

[0010] Further, the included angle between the first rod and the second rod is an acute angle.

[0011] Further, a limiting block is also arranged on the fixed frame, and the limiting block is used to limit the movement of the bent pressing rod to the first position.

[0012] Further, the fixed frame is a steel grating, the steel grating is arranged on the ground, the steel grating is a cuboid structure, and the plane to be pressed is the ground.

[0013] Further, there are two bending pressure rods, which are arranged opposite and parallel to each other. The two bending pressure rods are respectively placed on both sides of the steel grating. There are two rotating shafts, which are respectively placed on both sides of the steel grating. The two rotating shafts are on the same straight line. One end of the rotating shaft is fixed to the steel grating, and the other end extends into the hinge hole of the bending pressure rod. Each bending pressure rod corresponds to one rotating shaft. The two bending pressure rods are connected by a cross bar. The cross bar connects two first rods and is arranged parallel to the ground.

[0014] Further, a U-shaped groove is arranged on the upper surface of the steel grating. When the bending pressure rod is in the second position, the cross bar is pressed into the U-shaped groove.

[0015] Further, when the bending pressure rod is in the first position, the first rod forms an acute angle with the ground, and the end of the first rod away from the second rod protrudes from the plane to be pressed.

[0016] The beneficial effects produced by the present invention include: The position of the wheel-pressure type mechanical induction switch can be set in the cleaning area. After the vehicle presses on the bending pressure rod, it can always maintain a clean state and close after leaving. The induction sensitivity is not affected by environmental factors, greatly improving the practical effect of the product. Since it is a contact type control, during the use process, it can consciously remind the driver to concentrate and drive carefully, greatly reducing the accident frequency of the car wash machine being damaged due to the vehicle running off course. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Structural schematic diagram of the wheel-pressure type mechanical induction switch in the present invention;

[0018] Figure 2 Top view of the wheel-pressure type mechanical induction switch in the present invention;

[0019] Figure 3 Movement state diagram of the wheel-pressure type mechanical induction switch in the present invention;

[0020] In the figure, 1. Steel grating, 2. Bending pressure rod, 201. First rod, 202. Second rod, 3. Rotating shaft, 4. Return spring, 5. Proximity switch, 6. Limit block, 7. Tire, 8. U-shaped groove, 9. Hook, 10. Cross bar. DETAILED DESCRIPTION OF THE INVENTION

[0021] The following further elaborates on the present invention in detail with reference to the drawings and specific embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0022] Such as Figures 1-3, a wheel-pressure type mechanical induction switch in the present invention includes a fixed frame, a bent pressing rod 2, a rotating shaft 3, a return spring 4, a proximity switch 5, and a limit block 6 disposed on the ground. In this embodiment, the fixed frame adopts a steel grid 1, which is a cuboid structure. The bent pressing plate includes a first rod 201 and a second rod 202 disposed at an angle. A hinge hole is provided at the connection of the first rod 201 and the second rod 202. The angle between the first rod 201 and the second rod 202 is an acute angle. The first rod 201 and the second rod 202 are placed on a plane and on a vertical plane.

[0023] In this embodiment, the rotating shaft 3 can also be called a hinge shaft, corresponding to the hinge hole. The hinge shaft and the hinge hole are in clearance fit. The rotating shaft 3 is fixedly arranged on the steel grid 1. The rotating shaft 3 passes through the hinge hole and is hinged to the bent pressing rod 2. The rotating shaft 3 is horizontally arranged. The bent pressing rod 2 includes a first position and a second position, and the bent pressing rod 2 switches between these two positions. When there is no vehicle pressing, it is in the first position, that is, the first rod 201 protrudes from the ground. When a vehicle presses on the bent pressing rod 2, the bent pressing rod 2 is in the second position. At this time, the bent pressing rod 2 is pressed down. When the bent pressing rod 2 is subjected to wheel pressure, the bent pressing rod 2 rotates around the rotating shaft 3 from the first position to the second position.

[0024] The return spring 4 includes a first end and a second end. The first end is connected to the second rod 202. The end of the second rod connected to the return spring is the end far from the first rod 201. The second end is fixed on the fixed frame. The return spring 4 is used to reset the bent pressing rod 2 from the second position to the first position. When the bent pressing rod 2 rotates from the first position to the second position, the return spring 4 is gradually stretched. When there is no pressure on the bent pressing rod 2, the return spring 4 returns to its original state, that is, to the first position, and at the same time pulls the second rod 202 to reset the first rod 201 and the second rod 202. The limit block is arranged on the fixed frame to limit the first rod from moving further after reaching the first position to prevent excessive rotation.

[0025] The proximity switch 5 is arranged on the fixed frame. After the bent pressing rod 2 rotates to the second position, it triggers the proximity switch 5. The proximity switch 5 is arranged on the fixed frame.

[0026] To prevent excessive movement, a limit block 6 is further provided on the fixing frame. The limit block 6 is used to limit the movement of the bending pressure lever 2 to the first position. There are two bending pressure levers 2, which are arranged opposite and parallel to each other. The two bending pressure levers 2 are respectively placed on both sides of the steel grid 1. There are two rotating shafts 3, which are respectively placed on both sides of the steel grid 1. The two rotating shafts 3 are on the same straight line. One end of the rotating shaft 3 is fixed to the steel grid 1, and the other end extends into the hinge hole of the bending pressure lever 2. Each bending pressure lever 2 corresponds to one rotating shaft 3. The two bending pressure levers 2 are connected by a cross bar 10. The cross bar 10 connects two first rods 201 and is arranged parallel to the ground. A U-shaped groove 8 is provided on the upper surface of the steel grid 1. When the bending pressure lever 2 is in the second position, the cross bar 10 is pressed into the U-shaped groove 8. There are also two return springs, which are parallel to each other and respectively correspond to the two bending pressure levers 2. When in the stretched state, the return springs apply a pulling force to the bending pressure lever, causing the first rod of the bending pressure lever to rotate counterclockwise upward.

[0027] The bending pressure lever 2 is connected to a stainless steel telescopic spring through a hook 9, and the stainless steel telescopic spring is fixed to both sides of the steel grid 1 through the hook 9. The proximity limit is fixed to the side of the steel grid 1, and the U-shaped groove 8 opening provided on the steel grid 1 cooperates with the bending pressure lever 2.

[0028] As Figure 2 shown, it is the use state during the use of the wheel pressure type mechanical induction switch for an engineering vehicle car washer according to the present invention. When the vehicle tire 7 rolls over the bending pressure lever 2, the bending pressure lever 2 moves downward clockwise through the hinge shaft and reaches the position of the U-shaped groove 8 opening of the steel grid 1 plate. When the pressure lever senses the proximity limit, the proximity limit sends a control signal to start the operation of the car washing equipment water pump. In this state, the pressure lever pulls the stainless steel telescopic spring to extend through the hook 9, and the stainless steel telescopic spring is in a tensile state. When the vehicle tire leaves the pressure lever, the stainless steel telescopic spring pulls the pressure lever to rotate counterclockwise upward through the hinge shaft. The bending pressure lever 2 abuts against the limit block 6 to restore to the original position state, and at this time, a single induction contact action is completed.

[0029] The above is only the preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. For those skilled in the art, various changes and modifications can be made within the technical solution scope of the present invention, and any changes and modifications made are within the protection scope of the present invention.

Claims

1. A wheel-pressure type mechanical induction switch, characterized in that: It includes A fixed frame, which is arranged on the plane to be pressed; A bent pressing rod, which includes a first rod and a second rod arranged at an angle, and a hinge hole is arranged at the connection of the first rod and the second rod; the included angle between the first rod and the second rod is an acute angle; A rotating shaft, which is fixedly arranged on the fixed frame, and the rotating shaft passes through the hinge hole and is hinged to the bent pressing rod. The rotating shaft is horizontally arranged. The bent pressing rod includes a first position and a second position. When the bent pressing rod is subjected to wheel pressure, the bent pressing rod rotates around the rotating shaft from the first position to the second position; A return spring, one end of which is connected to the end of the second rod far from the first rod, and the other end is fixed on the fixed frame. The return spring is used to reset the bent pressing rod from the second position to the first position; A proximity switch, which is arranged on the fixed frame. After the bent pressing rod rotates to the second position, the proximity switch is triggered; The fixed frame is a steel grid, the steel grid is arranged on the ground, the steel grid is a cuboid structure, and the plane to be pressed is the ground; There are two bent pressing rods, and the two bent pressing rods are arranged opposite to each other and parallel. The two bent pressing rods are respectively arranged on both sides of the steel grid. There are two rotating shafts, which are respectively arranged on both sides of the steel grid. The two rotating shafts are on the same straight line. One end of the rotating shaft is fixed on the steel grid, and the other end extends into the hinge hole of the bent pressing rod. Each bent pressing rod corresponds to one rotating shaft. The two bent pressing rods are connected by a cross bar. The cross bar connects the two first rods and is parallel to the ground.

2. The wheel-pressure type mechanical induction switch according to claim 1, characterized in that: A limit block is further arranged on the fixed frame, and the limit block is used to limit the movement of the bent pressing rod to the first position.

3. The wheel-pressure type mechanical induction switch according to claim 1, characterized in that: A U-shaped groove is arranged on the upper surface of the steel grid. When the bent pressing rod is in the second position, the cross bar is pressed into the U-shaped groove.

4. The wheel-pressure type mechanical induction switch according to claim 1, characterized in that: When the bent pressing rod is in the first position, the first rod forms an acute angle with the ground, and the end of the first rod far from the second rod protrudes from the plane to be pressed.

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