CN104391128B - Vehicle speed display device with electromagnetic damping - Google Patents
Vehicle speed display device with electromagnetic damping Download PDFInfo
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- CN104391128B CN104391128B CN201410526646.3A CN201410526646A CN104391128B CN 104391128 B CN104391128 B CN 104391128B CN 201410526646 A CN201410526646 A CN 201410526646A CN 104391128 B CN104391128 B CN 104391128B
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- ratchet wheel
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Abstract
The invention belongs to the fields of vehicle safety, traffic safety and guard safety, in particular to the fields of measuring and displaying vehicle speed, preventing overspeed of a vehicle and limiting the vehicle speed for security. The existing vehicle speed measurement has the defects that: 1, electric power is needed, 2, manual starting is needed. In order to solve the defects in the prior art, the invention provides a device for measuring the speed of a vehicle, which has the beneficial effects that: the structure is simple, no electric power is needed, and manual starting is not needed. The invention solves the technical problems by adopting the following technical means: the vehicle speed display device with electromagnetic damping comprises a rotary cylinder (48), and is characterized in that: the speed measuring device comprises a second ratchet wheel (41), a rotating rod (42), a rotating disc (43), a swinging rod (44), a sleeve (47) and a magnet (92), wherein the magnet (92) and a push-up cylinder (61) are close to but not in contact, and a speed ruler (51) which is marked with scales (52) and used for determining the speed is arranged above a road surface.
Description
Technical Field
The invention belongs to the fields of vehicle safety, traffic safety and guard safety, in particular to the fields of measuring and displaying vehicle speed, preventing overspeed of a vehicle and limiting the vehicle speed for security.
Technical Field
The existing automobile speed measurement needs electricity, and once the electricity is interrupted, the speed cannot be measured. The existing device for preventing the overspeed of the automobile is a protrusion paved above the road surface, which is also called a deceleration strip. In fact, many automobiles can pass through the speed bump at high speed without regard to comfort. There are also units of the army where the doorway has an electrically powered, raisable, tire puncturing device that requires manual operation to function, and once a terrorist driving pulse is applied, guard or whistle detects the car, which may have passed over the guard.
In areas where car overspeed is considered to be infringing, such as military exclusion areas, such as areas where traffic control is adopted to prevent terrorist events, where car speed is severely limited, abnormal cars passing at high speeds are considered to be infringing, security guards should take action (in extreme cases including killing in-car personnel to solve the problem). However, criminals collide at high speed, leaving a short time for security personnel to react.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a vehicle measuring device without electricity, and also discloses a device for blocking a vehicle or puncturing a vehicle tire when the vehicle is overspeed.
The invention solves the technical problems by adopting the following technical means:
1, an induction system for automobile speed measurement, including pressing the movable plate, characterized by:
the pressing plate rotating shaft is arranged below the road surface, the pressing plate can rotate around the pressing plate rotating shaft,
the pressing plate extends upwards, the upper end of the pressing plate extends out of the road surface,
the lower end of the pressing plate is fixedly connected with a pressing gear, the circle center of the pressing gear is coincident with the circle center of the rotating shaft of the pressing plate,
the pressing plate is also provided with a first pull-back device for returning the pressing plate, one end of the first pull-back device is arranged on the pressing plate, the other end is arranged on the underground fixture,
a first ratchet driven by the pressing gear is also provided.
2, the first pullback device is a rubber rope.
3, the first pullback device is a spring.
And 4, bending the pressing plate in the direction of advancing the wheels at the part extending out of the road surface, wherein the road surface is provided with a concave area for the rotation of the pressing plate.
5, a display device for measuring the speed of the automobile, which comprises a second ratchet wheel and is characterized in that:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
the other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
The rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
one end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
the sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
a speed ruler marked with scales and used for determining the speed is arranged above the road surface.
6, the second pullback device is a rubber rope.
And 7, a spring during the second pullback device.
8, a device for measuring the speed of a vehicle, which comprises a speed measuring sensing device and a display device, and is characterized in that:
the sensing device is as follows:
the pressing plate rotating shaft is arranged below the road surface, the pressing plate can rotate around the pressing plate rotating shaft,
the pressing plate extends upwards, the upper end of the pressing plate extends out of the road surface,
the lower end of the pressing plate is fixedly connected with a pressing gear, the circle center of the pressing gear is coincident with the circle center of the rotating shaft of the pressing plate,
the pressing plate is also provided with a first pull-back device for returning the pressing plate, one end of the first pull-back device is arranged on the pressing plate, the other end is arranged on the underground fixture,
A first ratchet wheel driven by the pressing gear is also arranged,
the display device is such that:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
the other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
the rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
one end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
the sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
a speed ruler which marks scales and is used for determining the speed is arranged above the road surface,
the first ratchet wheel and the second ratchet wheel are driven by the linkage device.
9, the first pullback device is a rubber rope.
The first pullback means is a spring 10.
11, the pressing plate is bent in the direction in which the wheels advance at the portion extending out of the road surface.
The second pullback means is a rubber string 12.
13, a second pullback device.
14, the linkage is a chain.
15, the linkage is a gear set or gearbox.
16, the display device may further be such that:
the vehicle speed display device utilizing the ratchet wheel comprises a rotating cylinder and is characterized in that:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
the other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
the rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
one end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
the sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
an upward pushing cylinder is supported above the rotating cylinder,
further comprises: a third ratchet wheel which is driven by the push-up cylinder and used for restraining the push-up cylinder to move so that the push-up cylinder can only move upwards,
A speed ruler marked with scales and used for determining the speed is arranged above the road surface.
17, further comprising: the side surface of the push-up cylinder is provided with a friction layer for increasing the friction force applied to the third ratchet wheel.
And 18, an anti-rotation piece for preventing the push-up barrel from rotating is arranged on the side surface of the push-up barrel, the anti-rotation piece is fixedly connected with the push-up barrel, and the anti-rotation piece is embedded into a fixed positioning block which is not moved.
19, the display device may further be such that:
vehicle speed display device with friction damping, including rotating the section of thick bamboo, characterized by:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
the other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
the rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
one end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
The sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
an upward pushing cylinder is supported above the rotating cylinder, a friction damping device for increasing sliding friction force for the upward pushing cylinder is clamped on the side surface of the upward pushing cylinder,
a speed ruler marked with scales and used for determining the speed is arranged above the road surface.
20, further comprising: the side surface of the push-up cylinder is provided with a friction layer for increasing the friction force applied to the third ratchet wheel.
21, said friction damping means being felt or sponge.
20, a vehicle speed display device with electromagnetic damping, comprising a rotary drum, characterized in that:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
the other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
the rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
One end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
the sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
an upward pushing cylinder is supported above the rotating cylinder, the upward pushing cylinder is made of a conductor, a magnet is arranged on the side surface of the upward pushing cylinder, the magnet is close to but not contacted with the upward pushing cylinder,
a speed ruler marked with scales and used for determining the speed is arranged above the road surface.
21, a road security device of thorn tire, including sensing device and the piercing device that tests the speed, characterized by:
the sensing device is as follows:
the pressing plate rotating shaft is arranged below the road surface, the pressing plate can rotate around the pressing plate rotating shaft,
the pressing plate extends upwards, the upper end of the pressing plate extends out of the road surface,
the lower end of the pressing plate is fixedly connected with a pressing gear, the circle center of the pressing gear is coincident with the circle center of the rotating shaft of the pressing plate,
the pressing plate is also provided with a first pull-back device for returning the pressing plate, one end of the first pull-back device is arranged on the pressing plate, the other end is arranged on the underground fixture,
a first ratchet wheel driven by the pressing gear is also arranged,
the piercing means is such that:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
The other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
the rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
one end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
the sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
an upward pushing cylinder is supported above the rotating cylinder, a thorn-shaped object is fixedly connected above the upward pushing cylinder, an opening for lifting the thorn-shaped object is arranged on the road surface,
the first ratchet wheel and the second ratchet wheel are driven by a linkage device,
and a third ratchet wheel which is driven by the push-up cylinder and enables the push-up cylinder to move upwards only.
22, further comprising: the side surface of the push-up cylinder is also provided with a friction layer for increasing the friction force applied to the third ratchet wheel.
23, further comprising: the side surface of the push-up cylinder is also provided with an anti-rotation piece which is fixedly connected with the push-up cylinder, and the anti-rotation piece is embedded into a fixed positioning block which does not move.
24 car security device that traveles based on opto-coupler, including sensing device and the piercing device that tests the speed, characterized by:
the sensing device is as follows:
the pressing plate rotating shaft is arranged below the road surface, the pressing plate can rotate around the pressing plate rotating shaft,
the pressing plate extends upwards, the upper end of the pressing plate extends out of the road surface,
the lower end of the pressing plate is fixedly connected with a pressing gear, the circle center of the pressing gear is coincident with the circle center of the rotating shaft of the pressing plate,
the pressing plate is also provided with a first pull-back device for returning the pressing plate, one end of the first pull-back device is arranged on the pressing plate, the other end is arranged on the underground fixture,
a first ratchet wheel driven by the pressing gear is also arranged,
the piercing means is such that:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
the other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
the rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
A sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
one end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
the sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
the device is also provided with: an optocoupler for judging whether the height of the rotating cylinder exceeds the standard,
a controller for controlling the position of the lifting rod, wherein the top end of the lifting rod is provided with a puncturing part for puncturing the tire,
the controller is connected with the optical coupler to acquire the working state of the optical coupler.
25, thorn overspeed automobile tire's road security device, including sensing device and the piercing device that tests the speed, characterized by:
the sensing device is as follows:
the pressing plate rotating shaft is arranged below the road surface, the pressing plate can rotate around the pressing plate rotating shaft,
the pressing plate extends upwards, the upper end of the pressing plate extends out of the road surface,
the lower end of the pressing plate is fixedly connected with a pressing gear, the circle center of the pressing gear is coincident with the circle center of the rotating shaft of the pressing plate,
the pressing plate is also provided with a first pull-back device for returning the pressing plate, one end of the first pull-back device is arranged on the pressing plate, the other end is arranged on the underground fixture,
a first ratchet wheel driven by the pressing gear is also arranged,
The piercing means is such that:
the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel,
the other end of the rotating rod is fixedly connected with a rotating disc, the plane of the rotating disc is perpendicular to the rotating shaft of the rotating rod,
the rotating disc is connected with at least two swing rods in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc,
one end of the swinging rod is connected with the rotating disc, the other end is connected with the weight,
a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel,
one end of the second pull-back device is fixedly connected with the swing rod, the other end is fixedly connected with the sleeve,
the sleeve is also fixedly connected with a rotating cylinder, the rotating axis of the rotating cylinder is overlapped with the rotating axis of the rotating rod,
the V-shaped rotating rod consists of a long rod part and a short rod part, the length of the long rod part is longer than that of the short rod part,
a rotating shaft is arranged at the junction of the long rod part and the short rod part, the V-shaped rotating rod can rotate around the rotating shaft, the position of the rotating shaft is positioned above the rotating cylinder and is positioned outside the rotating cylinder,
one end of the long rod part of the V-shaped rotating rod is connected with the short rod part, the other end is a sharp end for puncturing the tire,
A gravity center adjusting rod is fixedly connected between the sharp end and the rotating shaft, one end of the gravity center adjusting rod is connected with the long rod part, the other end is fixedly connected with a gravity center adjusting counterweight,
and: when the sharp end of the V-shaped rotating rod is positioned under the road surface, the V-shaped rotating rod, the gravity center adjusting rod and the gravity center adjusting counterweight form a whole, and the gravity center position is as follows: the rotating shaft is used as a vertical line, the rotating cylinder and the gravity center are separated at two sides of the vertical line,
the short rod part of the V-shaped rotating rod is restrained by a string, so that the sharp end of the V-shaped rotating rod is under the road surface under the normal state,
one end of the short rod part of the V-shaped rotating rod is connected with the long rod part, and the other end of the V-shaped rotating rod is positioned above the rotating cylinder, so that the short rod part can be contacted when the rotating cylinder ascends.
26, the string is such that: the force required to break the string is F1, and the pulling force exerted by the string when the sharp end of the V-shaped turning rod is in a resting state under the road surface is F2, f1=1.2-fold to-1.5-fold F2.
27, said rotational shaft is a ratchet.
28, the V-shaped rotating rod is composed of a plurality of long rod parts, the long rod parts are fixedly connected to the overturning rod, and the long rod parts are arranged in parallel on the same plane.
29, still including covering in the apron on road surface, the apron has seted up: and the long rod part passes through the long rod part when rotating and is provided with a long strip-shaped hole.
The above technical schemes can be combined in a reasonable range.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic structural view of a third embodiment of the present invention.
Fig. 4 is a schematic partial structure of a third embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention.
Fig. 6 is a schematic partial structure of a fifth embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a sixth embodiment of the present invention.
Fig. 8 is a schematic structural view of a seventh embodiment of the present invention.
Fig. 9 is a schematic structural view of an eighth embodiment of the present invention.
Fig. 10 is a schematic structural view of a ninth embodiment of the present invention.
Fig. 11 is a schematic structural view of a tenth embodiment of the present invention.
Fig. 12 is a schematic view of the structure of the tenth embodiment of the present invention.
Fig. 13 is a partial schematic configuration of an eleventh embodiment of the present invention.
Fig. 14 is a partial schematic configuration of an eleventh embodiment of the present invention.
Fig. 15 is a partial schematic configuration of an eleventh embodiment of the present invention.
In the figure: the device comprises a 1-pressing plate, a 11-pressing plate rotating shaft, a 12-pressing gear, a 13-first pull-back device, a 2-first ratchet wheel, a 3-road surface, a 41-second ratchet wheel, a 42-rotating rod, a 43-rotating disc, a 44-swinging rod, a 45-heavy object, a 46-second pull-back device, a 47-sleeve, a 48-rotating cylinder, a 51-speed ruler, a 52-scale, a 61-push-up cylinder, a 62-third ratchet wheel, a 64-friction layer, a 611-anti-rotating sheet, a 612-positioning block, a 91-friction damping device, a 92-magnet, a 63-thorn, a 7-rotating shaft, a 71-V-shaped rotating rod, a 721-gravity center adjusting rod, a 722-gravity center adjusting weight, a 73-string, a 74-rotating rod, a 700-cover plate, an 81-optical coupler, a 82-controller, a 83-lifting rod and a 84-piercing part.
The specific embodiment is as follows:
embodiment one: referring to fig. 1, a schematic diagram of the structure of the present invention is shown.
A induction system for automobile speed measurement, including pressing movable plate 1, characterized by:
the pressing plate rotating shaft 11 is arranged below the pavement 3, the pressing plate 1 can rotate around the pressing plate rotating shaft 11,
the pressing plate 1 extends upwards, the upper end of the pressing plate 1 extends out of the road surface 3,
the lower end of the pressing plate 1 is fixedly connected with a pressing gear 12, the circle center of the pressing gear 12 is coincident with the circle center of the rotating shaft 11 of the pressing plate,
the pressing plate 1 is also provided with a first pull-back device 13 for returning the pressing plate 1, one end of the first pull-back device 13 is arranged on the pressing plate 1, the other end is arranged on an underground fixture,
a first ratchet wheel 2 driven by the pressing gear 12 is also provided.
The first pullback means 13 is a rubber string or a spring.
Those skilled in the relevant art will appreciate that: the platen rotation axis 11 is parallel to the road surface, or substantially parallel to the road surface, and because the road surface is often not strictly a plane, the term "substantially" as used herein is a technical requirement known to those skilled in the relevant art.
Obviously: those skilled in the relevant art will also appreciate that: the road surface is provided with an opening for the rotation of the pressing plate.
Definition: the first ratchet wheel 2: the first ratchet 2 is a ratchet like a common bicycle rear wheel gear: when the bicycle advances, the ratchet wheel of the rear wheel of the bicycle drives the wheel to drive the bicycle to move; if the pedal of the bicycle is rotated in the opposite direction, the bicycle chain drives the gear ring on the ratchet surface of the rear wheel to rotate, and the rear wheel of the bicycle does not obtain power. The first ratchet 2 is a prior art, so the detailed structure of the first ratchet 2 is not described in the present invention. As another example: when the first ratchet wheel 2 rotates anticlockwise, the whole ratchet wheel rotates, that is to say, the ratchet wheel can output power; when the first ratchet wheel 2 rotates clockwise, only the gear ring on the surface of the ratchet wheel rotates, and the ratchet wheel does not output power in the state.
The working principle of the first embodiment is as follows: the wheels roll to press the pressing plate 1, and the pressing plate 1 rotates around the pressing plate rotating shaft 11, so that the pressing gear 12 also rotates, and the rotation of the pressing gear 12 drives the rotation of the first ratchet wheel 2. Because the vehicle speeds are different, the angular speeds at which the platen 1 rotates are different, that is, the wheels of different speeds are pressed, resulting in different rotational speeds of the first ratchet 2. In order to allow the presser plate 1 to return to its original position after pressing, waiting for the next pressing, the first pulling-back device 13 is needed, and rubber ropes, springs can be used. The first pulling back device 13 is such that the first ratchet 2 does not output power during the process of pulling back the pressing plate 1 to the original position, which is a state that the bicycle chain is inverted.
After reading this description, a person skilled in the relevant art will know the location where the first pullback device 13 is suitable to be mounted.
Those skilled in the relevant art will recognize from consideration of the specification: the axis of the platen rotary shaft 11 should be below the road surface and in a horizontal direction. The pressing plate 1 can change the width according to the actual requirements such as the width of the road surface.
Embodiment two: referring to fig. 2, a schematic diagram of the structure of the present invention is shown.
In order to further optimize the first embodiment, the technical scheme adopted may be: the pressing plate 1 is curved in the direction in which the wheels advance at a portion extending from the road surface 3, and the road surface 3 is provided with a recessed area in which the pressing plate 1 rotates.
Compared with the first embodiment, the service life of the pressing plate 1 can be prolonged, because the straight pressing plate 1 is easy to crush.
The road surface 3 is provided with a concave area for the rotation of the pressing plate 1, meaning: the rotation of the pressing plate needs space, and the pressing plate is not blocked by an obstacle, and the concave area is a space for the pressing plate to rotate and is arranged on the road surface.
Embodiment III: referring to fig. 3, a schematic diagram of the structure of the present invention is shown. For a clearer representation of the partial structure, reference is made to fig. 4, which is intended to show the manner in which the rotary disk 43 and the rotary lever 42 are connected. Fig. 4 is a top view.
A display device for automobile speed measurement, including second ratchet 41, characterized by:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
the other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
the rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
At a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
the sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
above the road surface 3 is arranged a speed scale 51 marked with graduations 52 for determining the speed.
The second pullback means 46 is a rubber string or a spring.
Those skilled in the relevant art will appreciate that: the rotation axis of the rotation lever 42 is in the vertical direction, or: the axis of the rotating rod is vertical. The second ratchet wheel 41 is fixedly connected to one end of the rotation lever 42, which means that: when the second ratchet wheel 41 drives the rotating rod 42 to rotate, the second ratchet wheel 41 and the rotating rod 42 do not slip, that is, rotate at the same angular speed.
Definition: normal to the rotating disk 43: a straight line coplanar with the surface of the rotating disk 43 and passing through the center of the rotating disk is the normal line of the rotating disk 43.
Definition: second ratchet 41: the second ratchet 41 and the first ratchet 2 are both: when rotating in a certain direction, power can be output, and when rotating in the opposite direction, no power is output.
The working principle of the third embodiment is as follows: the second ratchet 41 is driven by the outside to start rotating, and drives the rotating rod 42, the rotating disc 43, the swinging rod 44 and the weight 45 to rotate together therewith, and the greater the rotation speed is, the higher the weight 45 and the swinging rod 44 are lifted. The lifting process of the weight 45 drives the sleeve 47 to lift through the second pullback device 46, and the sleeve 47 drives the rotating cylinder 48 to lift. The rising height of the rotating drum 48 reflects the rotational speed of the second ratchet 41.
The shape of the rotating disk 43 is preferably circular. Those skilled in the relevant art will appreciate that: the swinging rod 44 and the weight 45 connected with the swinging rod 44 have the mass center located on the axis of the rotating rod 42, so that vibration can be reduced during rotation.
The sleeve 47 can move up and down along the rotation rod 42. Alternatively, the rotating lever 42 restricts the movement path of the sleeve 47 so that the sleeve 47 can move only up and down. The sleeve 47 is preferably cylindrical in shape.
Those skilled in the relevant art will recognize after having reviewed this application: the sleeve 47 is fixedly connected with a rotating cylinder 48, which preferably comprises: a fixed connection is formed below the rotating cylinder 48 and below the sleeve 47. This connection does not affect the movement of the whip rod 44. The preferred way can also be said to be: the swing lever 44 and the rotating disk 43 are provided inside the rotating cylinder 48. In order to avoid strong vibration, the cross section of the rotary drum 48 is preferably circular.
Those skilled in the relevant art will recognize after having reviewed this application: the rotating drum will move up and down, including protruding from the road surface, so the road surface should be provided with corresponding openings to allow the drum to be lifted above the road surface.
Embodiment four: see fig. 1 and 3, or fig. 2 and 3.
A device for vehicle tests speed, including sensing device and the display device that tests speed, characterized by:
the sensing device is as follows:
the pressing plate rotating shaft 11 is arranged below the pavement 3, the pressing plate 1 can rotate around the pressing plate rotating shaft 11,
the pressing plate 1 extends upwards, the upper end of the pressing plate 1 extends out of the road surface 3,
the lower end of the pressing plate 1 is fixedly connected with a pressing gear 12, the circle center of the pressing gear 12 is coincident with the circle center of the rotating shaft 11 of the pressing plate,
the pressing plate 1 is also provided with a first pull-back device 13 for returning the pressing plate 1, one end of the first pull-back device 13 is arranged on the pressing plate 1, the other end is arranged on an underground fixture,
a first ratchet wheel 2 driven by a pressing gear 12 is also provided,
the display device is such that:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
the other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
the rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
At a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
the sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
above the road surface 3 is arranged a speed scale 51 marked with graduations 52 for determining the speed,
the first ratchet wheel 2 and the second ratchet wheel 41 are driven by a linkage.
The first pullback means 13 is a rubber string or a spring. The second pullback device 46 is a rubber string or spring.
The pressure plate 1 is curved in the direction in which the wheels advance at the portion protruding from the road surface 3.
The linkage is a chain.
The linkage is a gear set or a gearbox.
Based on the first, second and third embodiments, the working principle of the fourth embodiment only needs to be briefly introduced: wheel pressure presses the pressure plate 1, resulting in: the first ratchet wheel 2 rotates, and the first ratchet wheel 2 rotates the second ratchet wheel 41 via the link, thereby raising the rotating cylinder 48. Wheel speed is the only factor affecting the elevation of the rotor 48, so vehicles at different speeds pass and the elevation of the rotor 48 is different. In the course of the wheel travel, the rotating drum 48 is lowered and the second ratchet wheel 41 does not drive the linkage, as has been described in the third embodiment. One ratchet wheel rotates, and the other ratchet wheel also rotates, namely links, through a linkage device, and the linkage device belongs to the prior art.
Is the weight of the vehicle affecting the elevation of the rotating drum 48? The answer is: the weight of the vehicle is sufficiently heavy compared to the mechanical friction of the various components of the invention. When a vehicle weighing 1 ton and a vehicle weighing 50 tons press the pressing plate 1 at the same speed, the rotation speed of the pressing plate 1 is not different due to different vehicle weights.
Whether the front wheel is pressed, the rear wheel is then pressed, affecting the elevation? The answer is: the effect is not affected. Since the elevation is determined by the rotational speed of the rotating disc 43. One skilled in the relevant art will be aware of the error allowed for the measurement.
How does the scale 52 identified by the speed ruler 51 get? Answer: the best way is to know the speed of the vehicle by experiment with other equipment or methods, then let the vehicle of known speed pass through the pressure plate 1, and then mark the scale 52 on the speed staff 51. Those skilled in the relevant art can also calculate the ratio of the rotational speed and the ratio of the transmission speed by combining the dynamic knowledge, which is troublesome compared with the test method and takes many influencing factors into consideration, so that the test method is suggested to obtain the result.
Embodiment five, see fig. 5, is a schematic structural diagram of embodiment five.
The display device may further be such that:
the vehicle speed display device comprises a rotary drum 48, and is characterized in that:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
the other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
the rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
at a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
the sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
a push-up cylinder 61 is supported above the rotating cylinder 48,
further comprises: a third ratchet 62 driven by the push-up cylinder 61 to move the push-up cylinder 61 upward only,
above the road surface 3 is arranged a speed scale 51 marked with graduations 52 for determining the speed.
May further include: the push-up barrel 61 is provided laterally with a friction layer 64 for increasing the friction force applied to drive the third ratchet 62.
It is also possible to: the side of the push-up barrel 61 is provided with an anti-rotation piece 611, the anti-rotation piece 611 is fixedly connected with the push-up barrel 61, and the anti-rotation piece 611 is embedded into a fixed positioning block 612.
Definition: third ratchet 62: the third ratchet 62 can only rotate in one direction, and if reverse rotation is required, the locking mechanism needs to be released, and such ratchet belongs to the prior art, such as a lifting device commonly used in engineering: the hoist is internally provided with a ratchet wheel rotating in one direction, and if the hoist rotates in the opposite direction, the locking mechanism needs to be manually released.
The technical scheme can solve the following technical problems: the device may be used to know the maximum vehicle speed for a certain period of time. Because the third ratchet 62 can only raise the push-up barrel 61 without releasing the locking mechanism of the third ratchet 62.
Also to be described is: the push-up cylinder 61 is supported above the rotary cylinder 48. Here supported rather than fixedly attached. As long as the higher vehicle speed presses the pressure plate 1, the push-up drum 61 continues to rise, and if the non-maximum vehicle speed passes, the rotating drum 48 rises, but the rotating drum 48 cannot reach the push-up drum 61 that stays above it.
Referring to fig. 6, fig. 6 is a top view showing the push-up barrel 61 restrained. The side of the push-up barrel 61 is provided with an anti-rotation piece 611, the anti-rotation piece 611 is fixedly connected with the push-up barrel 61, and the anti-rotation piece 611 is embedded into a fixed positioning block 612. This is interpreted as follows: the rotating drum 48 rotates during the ascending process, the rotating drum 48 causes the push-up drum 61 to also rotate, and the rotation of the push-up drum 61 causes the push-up drum 61 and the third ratchet 62 to be not well matched, so that the movement of the push-up drum 61 is restrained by the rotation preventing piece 611 and the positioning block 612, so that the push-up drum 61 can only move up and down but cannot rotate. As will be appreciated by those skilled in the relevant art(s) in view of this disclosure, locating block 612 should be positioned on a fixture such as a concrete block mounted under pavement 3. It will also be appreciated by those skilled in the relevant art that the third ratchet 62 requires manual unlocking to lower the push-up barrel 61.
In order to better match the push-up barrel 61 and the third ratchet 62, a friction layer 64 for increasing the friction force applied to drive the third ratchet 62 may be provided on the side of the push-up barrel 61. The friction layer 64 may be formed by applying felt to the side of the push-up drum 61. In fig. 6, there is a gap between third ratchet 62 and friction layer 64, which is to make it clear to the reader that friction layer 64 and third ratchet 62 are, in fact, known to those skilled in the relevant art that third ratchet 62 and friction layer 64 should be in contact and have an appropriate pressure.
Those skilled in the relevant art will recognize from this disclosure that the rotating drum 48 is configured to support the push-up drum 61, and the upper portion of the rotating drum 48 should be provided with a design for supporting the push-up drum 61, for example: the upper side of the rotary drum 48 is closed, and the push-up drum 61 is supported by the top surface of the rotary drum 48.
The highest position to which the push-up drum 61 is raised is known as the highest speed of the vehicle that has passed during this time.
Example six:
see fig. 7.
The vehicle speed display device with friction damping comprises a rotary drum 48, and is characterized in that:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
the other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
the rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
at a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
The sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
an upward pushing cylinder 61 is supported above the rotating cylinder 48, a friction damping device 91 for increasing sliding friction force of the upward pushing cylinder 61 is clamped on the side surface of the upward pushing cylinder 61,
above the road surface 3 is arranged a speed scale 51 marked with graduations 52 for determining the speed.
The friction damping means 91 is felt or sponge.
Example four has one disadvantage: 1, if the driver wants to know his own vehicle speed, he can see the speed ruler 51, but the rotating drum 48 for indicating the speed in the fourth embodiment will descend to a height immediately after the wheel presses the pressure plate 1, so that the driver cannot easily see the problem of ascending the rotating drum 48 to a maximum height.
In embodiment six, this deficiency can be resolved: the rotating cylinder 48 is lifted to push the push-up cylinder 61 up, but the push-up cylinder 61 is slowly lifted by the resistance applied by the friction damper 91 during the lifting process, so that the driver can easily see the maximum lifting position of the push-up cylinder 61.
It should be noted that: 1, will the push-up barrel 61 not slowly rise? The answer is: the speed at which the push-up drum 61 is raised is determined only by the speed at which the rotary drum 48 is raised. Since the push-up cylinder 61 receives a pushing force (applied by the rotary cylinder 48) and also receives a resistance force (applied by the friction damper 91), the pushing force is much larger than the resistance force, and therefore the speed at which the push-up cylinder 61 is raised is determined only by the raising speed of the rotary cylinder 48. 2, it will be appreciated by those skilled in the relevant art that the means for displaying speed should be located at a roadside location in front of the driver, which facilitates the driver's visibility of the speed indication and driving safety. 3, there is also a benefit to this design: since the friction damper 91 is provided, the upward movement of the push-up cylinder 61 is less affected by the continued upward movement of the inertia during the upward movement. 4, due to inertia, the push-up barrel 61 may continue to rise a height that may cause a large error or even error in the display speed? The answer is: will not be. Because the scale 52 of the speed ruler 51 is obtained experimentally.
Embodiment seven:
see fig. 8. Vehicle speed display device with electromagnetic damping, including rotating drum 48, characterized by:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
the other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
the rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
at a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
the sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
an upper push-up cylinder 61 is supported above the rotating cylinder 48, the upper push-up cylinder 61 is made of a conductor, a magnet 92 is provided on the side of the upper push-up cylinder 61, the magnet 92 and the upper push-up cylinder 61 are close to but not in contact,
above the road surface 3 is arranged a speed scale 51 marked with graduations 52 for determining the speed.
One skilled in the relevant art will recognize from this disclosure that magnet 92 dampens the movement of push-up barrel 61. One skilled in the relevant art will appreciate the reason why the push-up barrel 61 employs a conductor. The push-up cylinder 61 is preferably made of copper. The magnet 92 is made of a permanent strong magnet, and a person skilled in the relevant art will be aware that the strong word in the strong magnet is clearly expressed.
Example eight:
see fig. 9.
The utility model provides a road security device of thorn tire, includes sensing device and the piercing device that tests the speed, characterized by:
the sensing device is as follows:
the pressing plate rotating shaft 11 is arranged below the pavement 3, the pressing plate 1 can rotate around the pressing plate rotating shaft 11,
the pressing plate 1 extends upwards, the upper end of the pressing plate 1 extends out of the road surface 3,
the lower end of the pressing plate 1 is fixedly connected with a pressing gear 12, the circle center of the pressing gear 12 is coincident with the circle center of the rotating shaft 11 of the pressing plate,
the pressing plate 1 is also provided with a first pull-back device 13 for returning the pressing plate 1, one end of the first pull-back device 13 is arranged on the pressing plate 1, the other end is arranged on an underground fixture,
a first ratchet wheel 2 driven by a pressing gear 12 is also provided,
the piercing means is such that:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
The other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
the rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
at a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
the sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
an upward pushing cylinder 61 is supported above the rotating cylinder 48, a thorn 63 is fixedly connected above the upward pushing cylinder 61, the road surface 3 is provided with an opening for lifting the thorn 63,
the first ratchet wheel 2 and the second ratchet wheel 41 are driven by a linkage,
a third ratchet 62 driven by the push-up cylinder 61 to move the push-up cylinder 61 upward only.
May further include: the side of the push-up barrel 61 is further provided with a friction layer 64 for increasing the friction force applied to drive the third ratchet 62.
May further include: the side of the push-up barrel 61 is also provided with an anti-rotation piece 611, the anti-rotation piece 611 is fixedly connected with the push-up barrel 61, and the anti-rotation piece 611 is embedded into a fixed positioning block 612.
Those skilled in the relevant art will appreciate that: setting the relevant parameters as required, including setting the position of the thorn 63 below the road surface 3, can achieve the technical effect of: the vehicle speed exceeds a certain value, the thorn 63 extends out of the road surface 3, and the purpose of puncturing the tire is achieved. Since the foregoing embodiments are explained, the present embodiment does not require detailed explanation of the respective components.
Example nine:
see fig. 10. Automobile driving security device based on optical coupler 81, including sensing device and the piercing device that tests the speed, characterized by:
the sensing device is as follows:
the pressing plate rotating shaft 11 is arranged below the pavement 3, the pressing plate 1 can rotate around the pressing plate rotating shaft 11,
the pressing plate 1 extends upwards, the upper end of the pressing plate 1 extends out of the road surface 3,
the lower end of the pressing plate 1 is fixedly connected with a pressing gear 12, the circle center of the pressing gear 12 is coincident with the circle center of the rotating shaft 11 of the pressing plate,
the pressing plate 1 is also provided with a first pull-back device 13 for returning the pressing plate 1, one end of the first pull-back device 13 is arranged on the pressing plate 1, the other end is arranged on an underground fixture,
a first ratchet wheel 2 driven by a pressing gear 12 is also provided,
the piercing means is such that:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
The other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
the rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
at a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
the sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
the device is also provided with: an optocoupler 81 for determining whether the height of the rotating cylinder 48 exceeds a standard,
a controller 82 for controlling the position of the rising stem 83, a piercing portion 84 for piercing the tire is provided at the tip of the rising stem 83,
the controller 82 is connected to the optocoupler 81 to obtain the working state of the optocoupler 81.
The position is judged by the optocoupler 81, which belongs to the prior art, and the motion of the object is controlled by the controller 82, which belongs to the prior art.
Example eight has the following disadvantages: the height at which the spike 63 rises is related to the speed of the vehicle. The heights of the rise of the spike 63 are different between 30 km/h and 70 km/h, and in order to prevent the forward travel of the vehicle, the tire needs to be punctured, and many times, a fixed or high enough puncture height is required, which cannot be solved by the eighth embodiment. Embodiment nine has advantages over embodiment eight: the controller 82 can control the elevation of the lifting rod 83, and once the speed of the automobile exceeds a certain value, the rotating drum 48 is lifted and reaches a certain height, and after the optocoupler 81 recognizes that the controller 82 controls the lifting rod 83 to move.
One skilled in the relevant art will appreciate that the penetration height is set according to the actual circumstances. It is also known that: the piercing means should be arranged in front of the sensing means with the direction of advance of the vehicle as the front and at a reasonable distance as required.
Example ten:
see fig. 11. Road security device of thorn overspeed automobile tire, including sensing device and the piercing device that tests the speed, characterized by:
the sensing device is as follows:
the pressing plate rotating shaft 11 is arranged below the pavement 3, the pressing plate 1 can rotate around the pressing plate rotating shaft 11,
the pressing plate 1 extends upwards, the upper end of the pressing plate 1 extends out of the road surface 3,
the lower end of the pressing plate 1 is fixedly connected with a pressing gear 12, the circle center of the pressing gear 12 is coincident with the circle center of the rotating shaft 11 of the pressing plate,
the pressing plate 1 is also provided with a first pull-back device 13 for returning the pressing plate 1, one end of the first pull-back device 13 is arranged on the pressing plate 1, the other end is arranged on an underground fixture,
a first ratchet wheel 2 driven by a pressing gear 12 is also provided,
the piercing means is such that:
the second ratchet wheel 41 is fixedly connected with one end of the rotating rod 42, and the rotating shaft of the rotating rod 42 is overlapped with the rotating shaft of the second ratchet wheel 41,
the other end of the rotating rod 42 is fixedly connected with a rotating disc 43, the plane of the rotating disc 43 is perpendicular to the rotating shaft of the rotating rod 42,
The rotating disc 43 is connected with at least two swing rods 44 in a hinged manner, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc 43,
one end of the swing rod 44 is connected with the rotating disc 43, the other end is connected with the weight 45,
at a position between the rotating disc 43 and the second ratchet wheel 41, the rotating rod 42 is sleeved with a sleeve 47,
one end of the second pullback device 46 is fixedly connected to the whip rod 44, the other end is fixedly connected to the sleeve 47,
the sleeve 47 is also fixedly connected with a rotating cylinder 48, the axis of rotation of the rotating cylinder 48 coincides with the axis of rotation of the rotating rod 42,
the V-shaped rotating rod 71 is composed of a long rod portion and a short rod portion, the length of the long rod portion is longer than that of the short rod portion, obviously, the long rod portion and the short rod portion of the V-shaped rotating rod 71 are fixedly connected, and in practice, a steel bar is usually bent to form the V-shaped rotating rod. For ease of typing, the lower case letter V and the upper case letter V are equivalent when describing the V-shaped turn bar.
A rotary shaft 7,V-shaped rotary rod 71 is arranged at the junction (also called a joint) of the long rod part and the short rod part and can rotate around the rotary shaft 7, the rotary shaft 7 is positioned above the rotary cylinder 48 and is positioned outside the rotary cylinder 48,
one end of the long rod portion of the V-shaped rotating rod 71 is connected with the short rod portion, the other end is a sharp end for piercing the tire,
A gravity center adjusting rod 721 is fixedly connected to a position between the sharp end and the rotating shaft 7, one end of the gravity center adjusting rod 721 is connected to the long rod portion, the other end of the gravity center adjusting rod 721 is fixedly connected to a gravity center adjusting weight 722, and a person skilled in the relevant art can determine the installation position of the gravity center adjusting rod 721 through non-creative labor, such as calculation by adopting the prior scientific knowledge, and then such as measurement through experiments.
And: when the sharp end of the V-shaped rotating rod 71 is located under the road surface 3, the V-shaped rotating rod 71, the gravity center adjusting lever 721, and the gravity center adjusting weight 722 form a whole, and the gravity center positions thereof are as follows: the rotating shaft 7 is crossed to make a vertical line, and the rotating cylinder 48 and the center of gravity are separated on both sides of the vertical line,
the short shaft portion of the V-shaped turn bar 71 is restrained by a string 73, so that the sharp end of the V-shaped turn bar 71 is normally under the road surface 3,
one end of the short lever portion of the V-shaped rotating lever 71 is connected to the long lever portion, and the other end is located above the rotating cylinder 48 so that the short lever portion can be touched when the rotating cylinder 48 is lifted.
The working principle of this embodiment is as follows: after the car overspeed, the rotary drum 48 rises to a certain height, then pushes the short shaft portion of the V-shaped rotary rod 71, and then causes the string 73 to be broken, and the rotation of the V-shaped rotary rod 71 is necessarily caused due to the gravity center of the V-shaped rotary rod 71, so that: referring to fig. 12, the V-shaped rotating rod 71 is inclined against the gap of the road surface 3, and the automobile tire is pressed by the automobile tire, so that the V-shaped rotating rod 71 can not rotate any more by selecting a proper inclination angle, and the tire is punctured.
The sharp end of the V-shaped turn bar 71 is normally under the road surface 3, explaining "normal": the normal state refers to a state in which there is no overspeed car, that is, a state in which the V-shaped turn lever 71 is waiting to rotate.
The optimized technical scheme is as follows: the string 73 is such a string 73: the force required to break the string 73 is F1, the tensile force of the string 73 is F2 when the sharp end of the V-shaped rotating rod 71 is at rest under the road surface 3, f1=1.2-1.5-fold F2, of course, F1 may be 1.3-fold F2, F1 may be 1.4-fold F2, F1 may be 1.35-fold F2, and F1 may be 1.36-fold F2.
String 73 may not be too strong, too strong to break easily, or too weak to break spontaneously.
The optimized technical scheme is as follows: the rotation shaft 7 is a ratchet. It should be appreciated by those skilled in the relevant art that in this embodiment, the rotation shaft 7 preferably serves two functions: 1, the V-shaped rotating rod 71 can rotate, 2, after the long rod part of the V-shaped rotating rod 71 is lifted, the reverse rotation of the V-shaped rotating rod 71 can be prevented. Therefore, the rotation shaft 7 is a ratchet wheel which is the best solution. This ratchet allows the V-shaped turn bar 71 to rotate after the string 73 breaks and ensures that the V-shaped turn bar 71 does not turn back.
Is the rotation axis 7 a ratchet a necessary solution? The answer is: the technical proposal is not necessary. Because the V-shaped turn bar 71 can be prevented from rotating any more by selecting a proper inclination angle, thereby puncturing the tire. In this regard, one skilled in the relevant art may determine relevant parameters by routine mechanical calculations or a limited number of experiments.
Example eleven:
see fig. 13, 14, 15.
The V-shaped rotating rod 71 is composed of a plurality of long rod parts, the long rod parts are fixedly connected to the turning rod 74, and the long rod parts are arranged in parallel on the same plane.
Still including covering in the apron 700 of road surface 3, apron 700 has seted up: and the long rod part passes through the long rod part when rotating and is provided with a long strip-shaped hole.
The technical scheme can ensure that the automobile cannot bypass, and can play a security role as long as the automobile runs on the set road. The person skilled in the relevant art can set the values of the device according to the invention according to the actual situation, for example, the rotating drum is light, the distance between the first ratchet wheel and the second ratchet wheel is suitable, and the suitable transmission is selected by this distance.
The above embodiments may be combined appropriately by those skilled in the relevant art to obtain a new technical solution.
The invention has simple structure, can be used for measuring the speed of the vehicle or limiting the speed of the vehicle, and plays a good role in measurement or security.
Claims (1)
1. The utility model provides a speed of a motor vehicle display device, includes induction system and the display device that tests the speed, characterized by: the sensing device is as follows:
the device comprises a pressing plate rotating shaft (11), a pressing plate (1), a pressing gear (12), a first pull-back device (13) for returning the pressing plate (1), a first ratchet wheel (2) driven by the pressing gear (12), a second ratchet wheel (2) and a second ratchet wheel, wherein the pressing plate rotating shaft (11) is arranged below a road surface, the pressing plate (1) can rotate around the pressing plate rotating shaft (11), the pressing plate (1) extends upwards, the upper end of the pressing plate (1) stretches out of the road surface, the lower end of the pressing plate (1) is fixedly connected with the pressing gear (12), the circle center of the pressing gear (12) coincides with the circle center of the pressing plate rotating shaft (11), the pressing plate (1) is further provided with the first pull-back device (13) for returning the pressing plate (1), one end of the first pull-back device (13) is arranged on the pressing plate (1), and the other end of the first ratchet wheel (2) is arranged on an underground fixture;
the display device is such that: the second ratchet wheel is fixedly connected with one end of the rotating rod, the rotating shaft of the rotating rod is overlapped with the rotating shaft of the second ratchet wheel, the other end of the rotating rod is fixedly connected with the rotating disc, the plane where the rotating disc is positioned is perpendicular to the rotating shaft of the rotating rod, the rotating disc is connected with at least two swinging rods in a hinged mode, the hinged rotating shaft is perpendicular to the rotating shaft of the rotating rod, the hinged rotating shaft is perpendicular to the normal line of the rotating disc, one end of the swinging rod is connected with the rotating disc, the other end of the swinging rod is connected with a heavy object, a sleeve is sleeved on the rotating rod at the position between the rotating disc and the second ratchet wheel, one end of the second pull-back device is fixedly connected with the swinging rod, the other end of the second pull-back device is fixedly connected with the sleeve, the sleeve is fixedly connected with a rotating cylinder, the rotating shaft line of the rotating cylinder is coincided with the rotating shaft line of the rotating rod, the first ratchet wheel and the second ratchet wheel are driven by a linkage device, an upward pushing cylinder is supported above the rotating cylinder, the device further comprises a third ratchet wheel which is driven by the upward pushing cylinder and enables the upward pushing cylinder to move upwards, an anti-rotation piece is arranged on the side face of the upward pushing cylinder and fixedly connected with the upward pushing cylinder, a fixed positioning block which is not moved is embedded into the anti-rotation piece, a friction layer for increasing the friction force applied to the third ratchet wheel is arranged on the side face of the upward pushing cylinder, a speed ruler which is marked with scales and used for determining the speed is arranged above a road surface, and the highest speed of a vehicle passing through the time can be known by the upward pushing cylinder which is lifted to the highest position corresponding to the speed ruler.
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| CN201410526646.3A CN104391128B (en) | 2014-10-06 | 2014-10-06 | Vehicle speed display device with electromagnetic damping |
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| CN201410526646.3A CN104391128B (en) | 2014-10-06 | 2014-10-06 | Vehicle speed display device with electromagnetic damping |
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| CN104049098A (en) * | 2014-06-16 | 2014-09-17 | 杨振波 | Mechanical revolution meter device |
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| FR2637104A1 (en) * | 1988-09-07 | 1990-03-30 | Omarouayache Nour Eddine | Automatic tell-tale of excessive speed, by perforating a revenue stamp |
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| TW201024140A (en) * | 2008-12-31 | 2010-07-01 | Ind Tech Res Inst | Centrifugal force sensing device and reactoion system by centrifugal force |
| CN103083882A (en) * | 2011-11-02 | 2013-05-08 | 丹尼尔·尤 | Method and apparatus for measuring the swing velocity of golf club heads |
| CN104049098A (en) * | 2014-06-16 | 2014-09-17 | 杨振波 | Mechanical revolution meter device |
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| CN104391128A (en) | 2015-03-04 |
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Effective date of registration: 20230721 Address after: Room 211-214, Floor 2, Building 4, No. 18, Jialingjiang East Street, Jianye District, Nanjing City, Jiangsu Province, 210000 Patentee after: Nanjing Future Zhengke Enterprise Management Co.,Ltd. Address before: No. 16, Qingnian Road, Tianshan District, UErvmqi, Xinjiang 830002 Patentee before: Zeng Fei |