A foot brake device that prevents accidental opening due to contact

Abstract

The present invention discloses a foot brake device that prevents accidental opening by touch, including an oil storage tank and a pressing plate, wherein the oil storage tank is respectively provided with an inclined oil pipe and a vertical oil pipe, wherein a movable piston that can slide is provided in the inclined oil pipe, wherein the movable piston is rotatably connected to the pressing plate through a pillow block mechanism, wherein a plurality of telescopic holes are provided on the pressing plate, wherein a horizontal oil pipe is horizontally provided on the side wall of the inclined oil pipe, wherein a fixed platform is provided at the end of the horizontal oil pipe, wherein the fixed platform is connected to the pressing plate through a hinge, wherein a plurality of oil distribution pipes are provided on the horizontal oil pipe, wherein a lifting piston that can slide is provided in the oil distribution pipe. The present invention adopts a method in which the end of the sensing rod is located in the telescopic hole and is flush with the top of the pressing plate, thereby ensuring that the sensing rod will be held back by the sole of the foot placed on the pressing plate during the lifting process and cannot rise, wherein the hydraulic oil in the inclined oil pipe will flow into the vertical oil pipe through the oil storage tank and squeeze the lower piston in the vertical oil pipe to lift.

Description

Technical Field

[0001] The invention relates to the technical field of anti-touch opening, and in particular to a foot brake device which can prevent accidental opening due to touch. Background Art

[0002] At present, some speed reduction devices are needed in some social work, which can effectively reduce the speed of high-speed moving objects and reduce the probability of safety accidents. However, in reality, there are often cases where the speed reduction fails. There are several reasons for this situation:

[0003] First, accidental contact causes the deceleration device to be activated prematurely. The main reason for this is that when the foot is stepping on the deceleration device, the sole of the foot does not touch the pedal or an external object touches the pedal, causing the pedal to be pressed down and the deceleration to be activated, which can easily cause safety accidents;

[0004] Secondly, the braking stability of the braking device cannot be guaranteed. This problem occurs because the pedaling force is different during the pedaling process, which causes the degree of deceleration to change with the pedaling force, and thus the braking stability of the braking device will be affected by the pedaling force.

[0005] For this purpose, we have designed a foot brake device that prevents accidental activation by touching it. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the deceleration device is activated prematurely due to accidental contact and the braking stability of the braking device cannot be guaranteed, and to propose a foot brake device that prevents accidental contact and activation.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A foot brake device for preventing accidental opening by touch comprises an oil storage tank and a pressing plate, wherein an inclined oil pipe and a vertical oil pipe are respectively arranged on the oil storage tank, a slidable moving piston is arranged in the inclined oil pipe, the moving piston is rotatably connected with the pressing plate through a pillow block mechanism, a plurality of telescopic holes are arranged on the pressing plate, a horizontal oil pipe is horizontally arranged on the side wall of the inclined oil pipe, a fixed platform is arranged at the end of the horizontal oil pipe, the fixed platform is connected to the pressing plate through a hinge, a plurality of oil distribution pipes are arranged on the horizontal oil pipe, a slidable lifting piston is arranged in the oil distribution pipe, a sensing rod is arranged on the top of the lifting piston, and a lifting piston is arranged in the vertical oil pipe according to the lifting mechanism. An upper piston and a lower piston are provided, the upper piston and the lower piston are connected by a buffer spring, a spring placement groove is provided on the top of the lower piston, the upper piston comprises a top plug, a bottom plug and a frustum plug, the top plug, the frustum plug and the bottom plug are connected in sequence from top to bottom, a telescopic groove is provided on the side wall of the vertical oil pipe, a clip is provided in the telescopic groove, the clip is connected to the bottom of the telescopic groove by a reset spring, the clip comprises an arc block, an upper clip block, a lower clip block and a clip groove, the upper clip block and the lower clip block are respectively provided at the head and tail ends of the arc block, and the upper clip block and the lower clip block are chamfered on the back end, and the clip groove is formed between the upper clip block and the lower clip block.

[0009] Preferably, the snap groove is matched with the bottom plug.

[0010] Preferably, the side surface of the cone plug is matched with the chamfer of the top of the upper clamping block.

[0011] Preferably, two ends of the buffer spring are respectively fixedly connected to the bottom of the upper piston and the bottom of the spring placement groove provided on the lower piston.

[0012] Preferably, the top of the sensing rod is flush with the telescopic hole.

[0013] Preferably, the oil storage tank, the inclined oil pipe, the vertical oil pipe, the horizontal oil pipe and the oil distribution pipe are all filled with hydraulic oil.

[0014] The beneficial effects of the present invention are:

[0015] 1. The end of the sensing rod of the present invention is located in the telescopic hole and is flush with the top of the pressing plate. At this time, it can be ensured that the sensing rod will be held back by the sole of the foot placed on the pressing plate during the lifting process and cannot rise. At this time, the hydraulic oil in the inclined oil pipe will flow into the vertical oil pipe through the oil storage tank and squeeze the lower piston in the vertical oil pipe to lift.

[0016] 2. The present invention adopts the method of the lower piston being squeezed and lifted by the hydraulic oil. When the lower piston is lifted to the maximum height, the top side wall of the lower piston will squeeze the lower clamping block to drive the entire clip to move into the telescopic groove. It should be noted that when the clip has not completely entered the telescopic groove, the upper clamping block has a limiting effect on the bottom plug, so that although the upper piston is subjected to the lifting force, it cannot rise, until the clip completely enters the telescopic groove, that is, the limiting effect of the clip groove on the bottom plug is released. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a foot brake device for preventing accidental opening by touch proposed by the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure enlarged at B in the middle;

[0020] Figure 4 A front view of a foot brake device for preventing accidental opening by touch proposed by the present invention;

[0021] Figure 5 A schematic diagram of the structure of an upper piston in a foot brake device that prevents accidental opening by touch proposed by the present invention;

[0022] Figure 6 This is a schematic structural diagram of a buckle in a foot brake device that prevents accidental opening by touch proposed by the present invention.

[0023] In the figure: 1 oil storage tank, 2 inclined oil pipe, 3 vertical oil pipe, 4 upper piston, 41 top plug, 42 bottom plug, 43 cone plug, 5 lower piston, 6 fastener, 61 arc block, 62 upper clamping block, 63 lower clamping block, 64 buckle groove, 7 telescopic groove, 8 return spring, 9 spring placement groove, 10 buffer spring, 11 moving piston, 12 shaft platform mechanism, 13 pressing plate, 14 telescopic hole, 15 horizontal oil pipe, 16 fixed platform, 17 hinge, 18 oil distribution pipe, 19 lifting piston, 20 sensing rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1-6 A foot brake device for preventing accidental opening by touching comprises an oil storage tank 1 and a pressing plate 13. The oil storage tank 1 is provided with an inclined oil pipe 2 and a vertical oil pipe 3 respectively. A slidable moving piston 11 is provided in the inclined oil pipe 2. The moving piston 11 is rotatably connected with the pressing plate 13 through a pillow block mechanism 12. A plurality of telescopic holes 14 are provided on the pressing plate 13. A horizontal oil pipe 15 is horizontally provided on the side wall of the inclined oil pipe 2. The oil storage tank 1, the inclined oil pipe 2, the vertical oil pipe 3, the horizontal oil pipe 15 and the oil distribution pipe 18 are all filled with Hydraulic oil, the pressing plate 13 is used as a pedal device. When the sole of the foot completely steps on the pressing plate 13, the sole of the foot will cover the pressing plate 13, and then the pressing plate 13 is pressed hard, the pressing plate 13 will transmit the force to the moving piston 11 through the pillow block mechanism 12, and the moving piston 11 will pressurize the hydraulic oil in the inclined oil pipe 2, and the hydraulic oil will flow through the horizontal oil pipe 15 set on the side wall of the inclined oil pipe 2 to the oil distribution pipe 18 at the top of the horizontal oil pipe 15, and then the lifting piston 19 will be lifted, thereby driving the sensing rod 20 to rise.

[0027] A fixed platform 16 is provided at the end of the horizontal oil pipe 15, and the fixed platform 16 is connected to the pressing plate 13 by a hinge 17. A plurality of oil distribution pipes 18 are provided on the horizontal oil pipe 15. A slidable lifting piston 19 is provided in the oil distribution pipe 18. A sensing rod 20 is provided on the top of the lifting piston 19. The top of the sensing rod 20 is flush with the telescopic hole 14, and the end of the sensing rod 20 is located in the telescopic hole 14 and is flush with the top of the pressing plate 13. At this time, it can be ensured that the sensing rod 20 will be supported by the sole of the foot placed on the pressing plate 13 during the lifting process and cannot rise. At this time, the hydraulic oil in the inclined oil pipe 2 will flow into the vertical oil pipe 3 through the oil storage tank 1 and squeeze the lower piston 5 in the vertical oil pipe 3 to lift it.

[0028] Since the volume of hydraulic oil in the oil storage tank 1, the inclined oil pipe 2, the vertical oil pipe 3, the horizontal oil pipe 15 and the oil distribution pipe 18 is certain, when the sole of the foot does not completely cover the pressing plate 13, that is, the pressing plate 13 is accidentally touched, the telescopic hole 14 on the pressing plate 13 is not covered by anything, and the sensing rod 20 will not be limited during the lifting process. In this case, the lifting height of the lower piston 5 in the vertical oil pipe 3 will be reduced accordingly and will not reach the corresponding height.

[0029] An upper piston 4 and a lower piston 5 are sequentially arranged in the vertical oil pipe 3. The upper piston 4 and the lower piston 5 are connected by a buffer spring 10. The two ends of the buffer spring 10 are respectively fixedly connected to the bottom of the upper piston 4 and the bottom of the spring placement groove 9 opened on the lower piston 5. When the buckle 6 completely enters the telescopic groove 7, the lower piston 5 pushes the buffer spring 10 in the spring placement groove 9 to apply force to the upper piston 4, so that the upper piston 4 is lifted, thereby achieving the opening and triggering of the deceleration device.

[0030] A spring placement groove 9 is provided on the top of the lower piston 5, and the upper piston 4 includes a top plug 41, a bottom plug 42 and a frustum plug 43, which are connected in sequence from top to bottom. A telescopic groove 7 is provided on the side wall of the vertical oil pipe 3, and a clip 6 is provided in the telescopic groove 7. The clip 6 is connected to the bottom of the telescopic groove 7 through a reset spring 8. The clip 6 includes an arc block 61, an upper clip block 62, a lower clip block 63 and a clip groove 64. The upper clip block 62 and the lower clip block 63 are respectively arranged at the head and tail ends of the arc block 61, and the upper clip block 62 and the lower clip block 63 are chamfered at the back end. The clip groove 64 is provided with a spring placement groove 9, and the upper clip block 62 and the lower clip block 63 are provided with a chamfer at the back end. 4 is formed between the upper clamping block 62 and the lower clamping block 63, the buckle groove 64 is matched with the bottom plug 42, the lower piston 5 is squeezed and lifted by the hydraulic oil, and when the lower piston 5 is lifted to the maximum height, the top side wall of the lower piston 5 will squeeze the lower clamping block 63 to drive the entire buckle 6 to move into the telescopic groove 7. It should be noted that when the buckle 6 has not completely entered the telescopic groove 7, the upper clamping block 62 has a limiting effect on the bottom plug 42, so that although the upper piston 4 is subject to the lifting force, it cannot rise until the buckle 6 completely enters the telescopic groove 7, that is, the limit of the buckle groove 64 on the bottom plug 42 is released.

[0031] The conical side surface of the cone plug 43 is matched with the chamfer of the top of the upper clamping block 62. When the sole of the foot moves away from the pressing plate 13, the upper piston 4 squeezes the upper clamping block 62 on the extended buckle 6 again, so that the buckle 6 returns to the telescopic groove 7. When the buckle 6 drops to the bottom of the bottom plug 42 and is flush with the top of the lower clamping block 63, the buckle 6 pops out under the action of the return spring 8 in the telescopic groove 7, and the buckle groove 64 limits the bottom plug 42 again, which is convenient for the continuous operation of the foot brake device. This can effectively avoid the degree of deceleration during the deceleration process changing with the change of the pedaling force, so that the braking stability of the braking device will be affected by the pedaling force.

[0032] The working principle of the present invention is as follows: the pressing plate 13 is used as a pedal device. When the sole of the foot completely steps on the pressing plate 13, the sole of the foot covers the pressing plate 13, and then the pressing plate 13 is pressed hard, the pressing plate 13 will transmit the force to the moving piston 11 through the pillow block mechanism 12, and the moving piston 11 will pressurize the hydraulic oil in the inclined oil pipe 2, and the hydraulic oil will flow through the horizontal oil pipe 15 set on the side wall of the inclined oil pipe 2 to the oil distribution pipe 18 at the top of the horizontal oil pipe 15, and then the lifting piston 19 will be lifted, thereby driving the sensing rod 20 to rise.

[0033] It should be noted that the end of the sensing rod 20 is located in the telescopic hole 14 and is flush with the top of the pressing plate 13. At this time, it can be ensured that the sensing rod 20 will be supported by the sole of the foot placed on the pressing plate 13 during the lifting process and cannot rise. At this time, the hydraulic oil in the inclined oil pipe 2 will flow through the oil tank 1 to the vertical oil pipe 3 and squeeze the lower piston 5 in the vertical oil pipe 3 to lift it.

[0034] It should be noted that, since the volume of hydraulic oil in the oil tank 1, the inclined oil pipe 2, the vertical oil pipe 3, the horizontal oil pipe 15 and the oil distribution pipe 18 is certain, when the sole of the foot does not completely cover the pressing plate 13, that is, the pressing plate 13 is accidentally touched, the telescopic hole 14 on the pressing plate 13 is not covered by anything, and the sensing rod 20 will not be limited during the lifting process. In this case, the lifting height of the lower piston 5 in the vertical oil pipe 3 will be reduced accordingly and will not reach the corresponding height.

[0035] Then, the lower piston 5 is squeezed and lifted by the hydraulic oil. When the lower piston 5 is lifted to the maximum height, the top side wall of the lower piston 5 will squeeze the lower clamping block 63 to drive the entire fastener 6 to move into the telescopic groove 7. It should be noted that when the fastener 6 has not completely entered the telescopic groove 7, the upper clamping block 62 has a limiting effect on the bottom plug 42, so that although the upper piston 4 is subjected to a lifting force, it cannot rise until the fastener 6 completely enters the telescopic groove 7, that is, the limiting effect of the fastener groove 64 on the bottom plug 42 is released.

[0036] Then, when the buckle 6 completely enters the telescopic slot 7, the lower piston 5 pushes the buffer spring 10 in the spring placement slot 9 to apply force to the upper piston 4, so that the upper piston 4 is lifted, thereby opening the trigger deceleration device.

[0037] Then, when the sole of the foot moves away from the pressing plate 13, the upper piston 4 squeezes the upper block 62 on the extended buckle 6 again, so that the buckle 6 returns to the telescopic groove 7. When the buckle 6 drops to the bottom of the bottom plug 42 and is flush with the top of the lower block 63, the buckle 6 pops out under the action of the return spring 8 in the telescopic groove 7, and the buckle groove 64 limits the bottom plug 42 again, which is convenient for the continuous operation of the foot brake device. This can effectively avoid the degree of deceleration during the deceleration process changing with the change of the pedaling force, so that the braking stability of the braking device will be affected by the pedaling force.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foot brake device for preventing accidental activation by touch, comprising an oil storage tank (1) and a pressing plate (13), characterized in that: The oil storage tank (1) is provided with an inclined oil pipe (2) and a vertical oil pipe (3) respectively. A slidable moving piston (11) is provided in the inclined oil pipe (2). The moving piston (11) is rotatably connected to a pressing plate (13) through a pillow block mechanism (12). The pressing plate (13) is provided with a plurality of telescopic holes (14). A horizontal oil pipe (15) is horizontally provided on the side wall of the inclined oil pipe (2). A fixed platform (16) is provided at the end of the horizontal oil pipe (15). The fixed platform (16) is connected to the pressing plate (13) through a hinge (17). A plurality of oil distribution pipes (18) are provided on the horizontal oil pipe (15). A slidable lifting piston (19) is provided in the oil distribution pipe (18). A sensing rod (20) is provided on the top of the lifting piston (19). An upper piston (4) and a lower piston (5) are sequentially provided in the vertical oil pipe (3). The upper piston (4) and the lower piston (5) are respectively provided in the vertical oil pipe (3). The piston (5) is connected via a buffer spring (10); a spring placement groove (9) is provided on the top of the lower piston (5); the upper piston (4) comprises a top plug (41), a bottom plug (42) and a cone plug (43); the top plug (41), the cone plug (43) and the bottom plug (42) are connected in sequence from top to bottom; a telescopic groove (7) is provided on the side wall of the vertical oil pipe (3); a buckle (6) is provided in the telescopic groove (7); the buckle (6) The clamping member (6) is connected to the bottom of the telescopic slot (7) via a return spring (8); the clamping member (6) comprises an arc block (61), an upper clamping block (62), a lower clamping block (63) and a clamping slot (64); the upper clamping block (62) and the lower clamping block (63) are respectively arranged at the head and tail ends of the arc block (61); and the upper clamping block (62) and the lower clamping block (63) are chamfered at their back ends; and the clamping slot (64) is formed between the upper clamping block (62) and the lower clamping block (63); The pressing plate (13) is used as a pedal device. When the sole of the foot completely steps on the pressing plate (13), the sole of the foot covers the pressing plate (13), and then the pressing plate (13) is pressed hard. The pressing plate (13) transmits force to the moving piston (11) through the pillow block mechanism (12). The moving piston (11) applies pressure to the hydraulic oil in the inclined oil pipe (2). The hydraulic oil flows through the horizontal oil pipe (15) provided on the side wall of the inclined oil pipe (2) to the oil distribution pipe (18) at the top of the horizontal oil pipe (15), and then The lifting piston (19) is lifted, thereby driving the sensing rod (20) to rise; the top of the sensing rod (20) is flush with the telescopic hole (14), and the end of the sensing rod (20) is located in the telescopic hole (14) and is flush with the top of the pressing plate (13). When the sole of the foot completely steps on the pressing plate (13), the sole of the foot covers the pressing plate (13), and the sensing rod (20) is resisted by the sole of the foot placed on the pressing plate (13) during the lifting process and cannot rise. At this time, the hydraulic oil in the tilting oil pipe (2) will flow through the oil storage The hydraulic fluid in the box (1) flows into the vertical oil pipe (3) and presses the lower piston (5) in the vertical oil pipe (3) to lift it up; when the sole of the foot does not completely cover the pressing plate (13), that is, the pressing plate (13) is accidentally touched, the telescopic hole (14) on the pressing plate (13) is not covered by anything, and the sensing rod (20) will not be limited during the lifting process. In this case, the lifting height of the lower piston (5) in the vertical oil pipe (3) will be reduced accordingly and will not reach the corresponding height; the lower piston (5) is squeezed and lifted by the hydraulic fluid. When the lower piston (5) is lifted to the maximum height, the top side wall of the lower piston (5) squeezes the lower clamping block (63) to drive the entire clip (6) to move into the telescopic groove (7). When the clip (6) has not completely entered the telescopic groove (7), the upper clamping block (62) has a limiting effect on the bottom plug (42), so that although the upper piston (4) is subjected to the lifting force, it cannot rise until the clip (6) completely enters the telescopic groove (7), that is, the limit of the clip groove (64) on the bottom plug (42) is released.

2. A foot brake device for preventing accidental opening by touch according to claim 1, characterized in that: The buckle groove (64) is matched with the bottom plug (42).

3. A foot brake device for preventing accidental opening by touch according to claim 1, characterized in that: The conical side surface of the frustum plug (43) is matched with the chamfer of the top of the upper clamping block (62).

4. A foot brake device for preventing accidental opening by touch according to claim 1, characterized in that: The two ends of the buffer spring (10) are respectively fixedly connected to the bottom of the upper piston (4) and the bottom of the spring placement groove (9) provided on the lower piston (5).

5. The foot brake device for preventing accidental opening by touch according to claim 1, characterized in that: The oil storage tank (1), the inclined oil pipe (2), the vertical oil pipe (3), the horizontal oil pipe (15) and the oil distribution pipe (18) are all filled with hydraulic oil.

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