CN113718679B

CN113718679B - Active and passive car arrester

Info

Publication number: CN113718679B
Application number: CN202110981423.6A
Authority: CN
Inventors: 夏航; 厉伟; 宋海玲; 曲立扬; 林浩
Original assignee: Qingdao People's Police Training Base
Current assignee: Qingdao People's Police Training Base
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-08-09
Anticipated expiration: 2041-08-25
Also published as: CN113718679A

Abstract

The invention discloses an active and passive car arrester, which comprises a box body, wherein one end of the box body is rotatably provided with a wheel pressing plate which is obliquely arranged, at least one tire pricking component is arranged in the box body, the tire pricking components are jointly connected with a tire pricking power source, and a tire pricking controller is arranged between the tire pricking component and the tire pricking power source; a traveling frame is vertically and slidably mounted in the box body, traveling wheels are mounted at the bottom end of the traveling frame, a stretching and retracting control crankshaft is rotatably mounted in the box body, and a crankshaft arm is arranged on the stretching and retracting control crankshaft; stretch out the end fixing of receiving control bent axle and be equipped with and stretch out the receipts control lock body, stretch out to receive to be equipped with on the terminal surface that control lock body and box body lateral wall pasted and stretch out to receive the control locked groove, stretch out to receive the control locked groove in the installation and stretch out to receive the control lock core, stretch out to receive the fixed control connecting rod that is equipped with in middle part of control lock core and stretches out the plug and dodge the slot hole, the anti-riot rod of outer end demountable installation of control connecting rod. The invention can be conveniently used at any time and any place, can effectively limit the parked vehicles, and obviously reduces the fleeing hazard and the fleeing and catching difficulty.

Description

Active and passive car arrester

Technical Field

The invention relates to the technical field of vehicle limiting instruments, in particular to an active and passive car arrester.

Background

When the personnel on duty in the transportation department performs routine inspection and check, the suspicious vehicles are guided to perform parking check. During the parking inspection, the situation that the inspected driver dangerously starts the vehicle and suddenly flees is often encountered. The illegal act of sudden start and fleeing is very easy to cause the accidents of injury and destruction of people, and fleeing vehicles often need to be caught by duty personnel for dozens or hundreds of kilometers, and in any case, the condition of catching failure can also occur. Therefore, the illegal act of sudden starting fleeing is not only high in harmfulness and high in police and material consumption, but also is easy to become a means for part of illegal drivers to escape from system management. Therefore, an instrument which can conveniently and effectively limit the parked vehicles at any time and any place is needed to avoid the above situation.

Disclosure of Invention

The invention aims to solve the technical problem of providing an active and passive car arrester which can be conveniently used at any time and any place, can effectively limit a parked car, and obviously reduces the fleeing hazard and the fleeing pursuit difficulty.

In order to solve the technical problems, the technical scheme of the invention is as follows: the active and passive car arrester comprises a box body, wherein one end of the box body is rotatably provided with a wheel pressing plate which is obliquely arranged, the free end of the wheel pressing plate is arranged outside the box body, the box body is provided with a pressing plate avoiding opening corresponding to the wheel pressing plate, and an outer swing elastic force applicator and an outer swing rigid limiter are arranged between the wheel pressing plate and the box body; the tire pricking component is arranged in the box body and faces the wheel pressing plate, tire pricking avoiding openings corresponding to the tire pricking components are formed in the wheel pressing plate, the tire pricking components are connected with a tire pricking power source together, and a tire pricking controller corresponding to the free end of the wheel pressing plate is arranged between the tire pricking component and the tire pricking power source; a walking frame is vertically and slidably mounted in the box body, at least three walking wheels are mounted at the bottom end of the walking frame, and walking stretching and closing-up ports corresponding to the walking wheels are arranged at the bottom of the box body; a stretching and retracting control crankshaft is rotatably arranged in the box body, and a crankshaft arm capable of downwards abutting against the walking frame is arranged on the stretching and retracting control crankshaft; the fixed tip that is equipped with of control bent axle of receiving stretches to lean on control lock body is received to stretching on the lateral wall of box body, stretch receive control lock body with the lateral wall of box body pastes and is equipped with the radial stretching that sets up on the terminal surface and receive the control locked groove, stretch and receive and install in the control locked groove and stretch and receive the control lock core, be equipped with on the lateral wall of box body with stretch and receive the plug that the control lock core corresponds and dodge the slot hole, the fixed middle part that is equipped with of control lock core of receiving stretches out radially sets up, just stretches out the control connecting rod that the slot hole was dodged to the plug, demountable installation has anti-riot rod on the outer end of control connecting rod.

According to a preferable technical scheme, the tire pricking assembly comprises a needle pricking ejection barrel fixedly arranged in the box body, and the needle pricking ejection barrel comprises a gas injection end and an ejection end; an ejection piston is slidably mounted in the puncture needle ejection cylinder, a puncture needle extending out of the ejection end is fixedly arranged on the ejection piston, an air vent is arranged at the inner end of the puncture needle, and an air exhaust port is arranged at the ejection end; the gas injection end is fixedly and hermetically connected with a gas injection control cylinder, and a launch gas inlet communicated with the gas injection control cylinder and the needle ejection cylinder is formed in the gas injection end; a control piston is slidably mounted in the gas injection control cylinder, and a gas blocking column capable of blocking the ejection gas inlet is fixedly arranged on the control piston; the control piston divides the inside of the gas injection control cylinder into a gas injection annular cavity and a balance bottom cavity, a gas blocking retaining spring is installed in the balance bottom cavity, and the gas injection control cylinder is provided with a gas injection port communicated with the gas injection annular cavity and a balance port communicated with the balance bottom cavity.

As the preferred technical scheme, a tire puncturing barb is fixedly arranged on the tire puncturing needle.

As a preferred technical scheme, the tire pricking controller comprises a control valve body fixedly installed in the box body, a valve rod channel is arranged in the control valve body, a control valve rod is installed in the valve rod channel in a sliding mode, the control valve rod extends out of one end of the valve rod channel and abuts against the free end of the wheel pressing plate, the other end of the valve rod channel is plugged, and an outward extending retaining spring is arranged between the control valve rod and the plugging end of the valve rod channel; the control valve body is provided with an air source inlet connected with the tire pricking power source, an air injection control port connected with the air injection port through a pipeline, and a balance control port connected with the balance port through a pipeline, the control valve body is internally provided with an air injection first channel and a balance first channel which are communicated with the air source inlet and the valve rod channel, the control valve body is internally provided with an air injection second channel communicated with the air injection control port and the valve rod channel, and a balance second channel communicated with the balance control port and the valve rod channel, and one side of the control valve body, which is positioned at the top leaning end of the balance second channel far away from the control valve rod, is provided with a balance pressure release channel; the control valve rod is provided with a gas injection retaining ring groove which is used for keeping the gas injection first channel and the gas injection second channel to be communicated normally, the control valve rod is provided with a pressure release control ring groove which is communicated with the balance first channel and the balance second channel, the distance between the balance first channel and the abutting end of the control valve rod is smaller than the distance between the balance second channel and the abutting end of the control valve rod, and the length of the pressure release control ring groove is larger than the distance between the closest points of the balance second channel and the balance pressure release channel.

As a preferable technical scheme, an internal sliding limiting ring table is arranged in the valve rod channel.

As the preferred technical scheme, the bottom of the box body is provided with the anti-withdrawal inclined thorn.

Preferably, a propping retainer and a return retainer are arranged between the crank arm and the box body.

As a preferred technical scheme, two arc-shaped connecting sleeves are hooped between the control connecting rod and the near end of the anti-riot stick, one ends of the two arc-shaped connecting sleeves are hinged and arranged, the other ends of the two arc-shaped connecting sleeves are hooped and fastened, and at least one of the inner walls of the arc-shaped connecting sleeves is provided with an anti-skidding convex thorn.

According to a preferable technical scheme, the tire pricking power source comprises a high-pressure air tank, an inflation inlet and an air source outlet connected with the tire pricking controller are arranged on the high-pressure air tank, an inflation nozzle connected with the inflation inlet through a pipeline is fixedly arranged on the box body, and an inflation check valve is arranged between the inflation nozzle and the inflation inlet; and a pressure gauge connected with the high-pressure gas tank is fixedly arranged on the box body.

As a preferred technical scheme, the two sides of the box body are respectively and rotatably provided with a wheel embracing arm, the box body is rotatably provided with a wheel embracing transmission shaft, two ends of the wheel embracing transmission shaft are respectively and integrally provided with a wheel embracing transmission worm, and each wheel embracing arm is respectively provided with a wheel embracing transmission worm wheel which is in transmission connection with the wheel embracing transmission worm on the corresponding side; the wheel holding transmission shaft and the stretching and retracting control crankshaft are in transmission connection.

Due to the adoption of the technical scheme, the active and passive car arrester comprises a box body, wherein one end of the box body is rotatably provided with a wheel pressing plate which is obliquely arranged, the free end of the wheel pressing plate is arranged outside the box body, the box body is provided with a pressing plate avoiding opening corresponding to the wheel pressing plate, and an outer swing elastic force applicator and an outer swing rigid limiter are arranged between the wheel pressing plate and the box body; the tire pricking component is arranged in the box body and faces the wheel pressing plate, tire pricking avoiding openings corresponding to the tire pricking components are formed in the wheel pressing plate, the tire pricking components are connected with a tire pricking power source together, and a tire pricking controller corresponding to the free end of the wheel pressing plate is arranged between the tire pricking component and the tire pricking power source; a walking frame is vertically and slidably mounted in the box body, at least three walking wheels are mounted at the bottom end of the walking frame, and walking stretching and closing-up ports corresponding to the walking wheels are arranged at the bottom of the box body; a stretching and retracting control crankshaft is rotatably arranged in the box body, and a crankshaft arm capable of downwards abutting against the walking frame is arranged on the stretching and retracting control crankshaft; the fixed tip that is equipped with of control bent axle of receiving stretches to lean on control lock body is received to stretching on the lateral wall of box body, stretch receive control lock body with the lateral wall of box body pastes and is equipped with the radial stretching that sets up on the terminal surface and receive the control locked groove, stretch and receive and install in the control locked groove and stretch and receive the control lock core, be equipped with on the lateral wall of box body with stretch and receive the plug that the control lock core corresponds and dodge the slot hole, the fixed middle part that is equipped with of control lock core of receiving stretches out radially sets up, just stretches out the control connecting rod that the slot hole was dodged to the plug, demountable installation has anti-riot rod on the outer end of control connecting rod. The extension control lock cylinder and the control connecting rod form a key for controlling whether the embodiment is in a walking state, and the external anti-riot stick can increase the length of control operation. After the vehicle stops, the anti-riot stick is manually operated, the extending and retracting control lock cylinder is inserted into the extending and retracting control lock groove, the anti-riot stick is rotated, and the box body can be supported by the travelling wheels. The antiriot stick can be used as a component for operating the box body to move, and the user can use the longer length of the antiriot stick to place the box body on the front side of the wheel of the stopped vehicle at a safe position far away from the vehicle. And then the antiriot sticks are reversely rotated, the bottom of the box body lands again, the extension control lock cylinder can be pulled out of the extension control lock groove, and the box body can limit the vehicle on the front side of the wheel independently. If the vehicle starts suddenly and flees, the wheel can be right the wheel clamp plate causes the impact, to wobbling wheel clamp plate in the box body, can make prick the child controller and open prick the child subassembly, prick the child subassembly and prick the child gassing to the tire of fleeing the vehicle, force to flee the unable normal driving of accomplishing of vehicle, can obviously reduce like this and flee the harmfulness and flee and pursue and catch the difficult degree. The invention can be conveniently used at any time and any place, can effectively limit the parked vehicles and is beneficial to smoothly checking the parked vehicles.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

fig. 1 is a schematic perspective view of a first embodiment of the present invention;

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

fig. 3 is a schematic perspective view of a third view angle according to an embodiment of the present invention, wherein the box cover is hidden;

FIG. 4 is a schematic cross-sectional view of a tire puncture controller according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a tire puncture assembly according to one embodiment of the present invention;

FIG. 6 is a schematic view of a puncture in accordance with an embodiment of the present invention, shown in an initial state prior to use;

FIG. 7 is a schematic view of the control valve stem of FIG. 6 shown after being stamped and slid inward;

FIG. 8 is a schematic view of the control valve stem of FIG. 7 after the press has been completed and the control valve stem has been re-extended;

FIG. 9 is a schematic view of an embodiment of the present invention in a walking state;

FIG. 10 is a perspective view illustrating a state of walking from the perspective of FIG. 3;

FIG. 11 is a perspective view of the control crank shaft and the anti-riot stick of FIG. 10 shown in isolation;

fig. 12 is a schematic perspective view of an arc-shaped connecting sleeve according to an embodiment of the invention;

fig. 13 is a schematic perspective view of a second embodiment of the present invention, in which the box cover is hidden;

FIG. 14 is the schematic view of FIG. 13 in the use position;

fig. 15 is a schematic perspective view of the wheel embracing arm and the transmission structure thereof in fig. 14.

In the figure: 1-box body; 11-preventing the inclined stabs from retreating; 12-box cover;

2-wheel pressing plate; 21-a platen escape opening; 22-external swing elastic force applying device; 23-a pendulum rigid limiter; 24-anti-slip bumps;

3-pricking the tyre assembly; 31-a needle insertion ejection cylinder; 311-gas injection end; 312-an ejection end; 313-injection end cap; 314-an exhaust port; 315-catapult air intake; 32-a catapult piston; 33-puncture needle; 331-air bleed hole; 332-puncture barbs; 34-an air injection control cylinder; 35-a control piston; 351-a gas barrier column; 36-a choke retention spring; 37-an air injection port; 38-balance port; 39-puncture of the tire to avoid the mouth;

4-tire puncture controller; 41-control valve body; 42-control valve stem; 421-gas injection holding ring groove; 422-pressure relief control ring groove; 43-an outwardly extending retention spring; 44-gas source inlet; 441-an air injection first channel; 442 — balance the first channel; 45-gas injection control port; 451-a second channel for gas injection; 46-balance control port; 461 — balance second channel; 47-balanced pressure relief passages; 48-inner slip limiting ring stage;

5-tire pricking power source; 51-a high pressure gas tank; 52-an inflation port; 53-gas source outlet; 54-a charging connector; 55-a gas-filled check valve; 56-pressure gauge;

6-a walking frame; 61-a travelling wheel; 611-walking stretching and closing; 62-stretching and retracting control crank shaft; 621-crank arm; 622 — first connecting pin; 623-a second connecting pin; 624-crank arm retention spring; 625-rotating avoidance slots; 63-extending and retracting the control lock body; 631-an expansion control lock slot; 632-a wobble escape slot; 641-extending and retracting control lock core; 642-plugging and unplugging the avoidance long hole; 643-control connecting rod; 644-antiriot stick; 645-arc shaped connecting sleeve; 646-fastening; 647-antiskid and convex thorn;

7-wheel embracing arm; 71-embracing a wheel transmission shaft; 72-holding wheel drive worm; 73-wheel drive worm wheel holding; 74-wheel clasping lock.

Detailed Description

The invention is further illustrated below with reference to the figures and examples. In the following detailed description, exemplary embodiments of the invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

The first embodiment is as follows: as shown in fig. 1 to 12 jointly, the driving and driven car arrester comprises a box body 1, a wheel pressing plate 2 obliquely arranged is installed at one end of the box body 1 in a rotating mode, the free end of the wheel pressing plate 2 is located at the outer side of the box body 1, and a pressing plate avoiding opening 21 corresponding to the wheel pressing plate 2 is formed in the box body 1. Preferably, the wheel pressure plate 2 is arranged in an arc shape so as to conveniently fit the arc-shaped periphery of the tire. Preferably, the part of the box body 1, on which the wheel pressing plate 2 is mounted, is in a wedge shape, and the wedge shape can be matched with the inclined arrangement of the wheel pressing plate 2 to limit and protect the side edge of the wheel pressing plate 2. For convenient installation and maintenance, this embodiment the box body 1 is relative the other end of wheel clamp plate 2 sets up lid 12.

An outer-swing elastic force applicator 22 and an outer-swing rigid limiter 23 are arranged between the wheel pressing plate 2 and the box body 1. The elastic force applied to the wheel pressing plate 2 by the outer-swing elastic force applicator 22 and the rigid limiting action of the outer-swing rigid limiter 23 enable the wheel pressing plate 2 to keep the state that the free end is positioned outside the box body 1. The outward-swinging elastic force applicator 22 in this embodiment comprises two outward-swinging spring pieces fixedly arranged on the box body 1, and the free ends of the two outward-swinging spring pieces are arranged to be attached to the inner surface of the wheel pressing plate 2. The outer swing rigid limiting stopper 23 comprises two outer swing limiting blocking platforms symmetrically arranged at the pressing plate avoiding port 21, and outer swing limiting bulges corresponding to the outer swing limiting blocking platforms are fixedly arranged on two sides of the wheel pressing plate 2 respectively.

At least one tire puncturing assembly 3 facing the wheel pressing plate 2 is installed in the box body 1, and the tire puncturing assemblies 3 are two symmetrical in the embodiment. The wheel pressing plate 2 is provided with tire puncture avoiding openings 39 corresponding to the tire puncture assemblies 3 respectively. The tire pricking component 3 is connected with a tire pricking power source 5, and a tire pricking controller 4 corresponding to the free end of the wheel pressing plate 2 is arranged between the tire pricking component 3 and the tire pricking power source 5.

The embodiment can be manually placed in front of the wheels of the stopped vehicle after the vehicle is stopped, so as to limit the vehicle. If the vehicle starts suddenly and flees, the wheel can be right wheel clamp plate 2 causes the impact, to wobbling wheel clamp plate 2 in the box body 1, can make prick child controller 4 opens prick child subassembly 3, prick child subassembly 3 and prick the child gassing to the tire of fleeing the vehicle, force to flee the unable normal driving of accomplishing of vehicle.

Based on the working principle, the bottom end of the wheel pressing plate 2 is rotatably connected with the box body 1, so that the top end of the wheel pressing plate 2 is used as a free end and is not easily pressed by a wheel, and therefore, the tire pricking action on a normally stopped vehicle is not easily generated in the embodiment, and the completeness of the normally stopped vehicle is ensured. In this embodiment, the outer surface of the wheel pressing plate 2 is provided with the anti-slip protrusions 24, and the anti-slip protrusions 24 can increase the friction between the wheel pressing plate 2 and the outer peripheral surface of the tire, so that the escaping vehicle can be started suddenly, the wheel pressing plate 2 can be stamped more effectively, and the tire pricking action can be generated sensitively in this embodiment. The bottom of the box body 1 is provided with the anti-retreat inclined prick 11, and the anti-retreat inclined prick 11 can be pushed to move by the wheel when the embodiment is collided by the wheel, so that the smooth tire pricking action can be effectively ensured.

Wherein the puncture assembly 3 and the puncture controller 4 are key to limiting the vehicle's ability to escape. The tire pricking component 3 of the present embodiment includes a needle ejection cylinder 31 fixedly disposed in the box body 1, and the needle ejection cylinder 31 includes a gas injection end 311 and an ejection end 312. An ejection piston 32 is slidably mounted in the puncture ejection cylinder 31, a puncture needle 33 extending out of the ejection end 312 is fixedly arranged on the ejection piston 32, an air vent 331 is arranged at the inner end of the puncture needle 33, and an air vent 314 is arranged at the ejection end 312. After the tire is punctured by the tire puncturing needle 33, the tire can be deflated by means of the inner cavity of the tire puncturing needle, the air vent 331 and the air vent 314.

A gas injection control cylinder 34 is fixedly and hermetically connected to the gas injection end 311, and this embodiment shows that the gas injection control cylinder 34 and the needle ejection cylinder 31 are integrally arranged. The gas injection end 311 is provided with an ejection gas inlet 315 communicating the gas injection control cylinder 34 with the needle ejection cylinder 31. A control piston 35 is slidably mounted in the gas injection control cylinder 34, and a choke column 351 capable of plugging the ejection gas inlet 315 is fixedly arranged on the control piston 35. The control piston 35 divides the interior of the gas injection control cylinder 34 into a gas injection ring cavity and a balance bottom cavity, a gas blocking retaining spring 36 is installed in the balance bottom cavity, and the gas injection control cylinder 34 is provided with a gas injection port 37 communicated with the gas injection ring cavity and a balance port 38 communicated with the balance bottom cavity.

When high-pressure gas with the same pressure exists in the gas injection ring cavity and the balance bottom cavity, the control piston 35 can block the ejection gas inlet 315 under the action of the gas blocking holding spring 36, and the gas blocking column 351 can block the ejection gas inlet 315. After the gas in the balanced bottom cavity is released, the pressure difference between two sides of the control piston 35 is increased, the control piston 35 is pushed by the high-pressure gas in the gas injection ring cavity, the gas blocking column 351 opens the ejection gas inlet 315, the high-pressure gas quickly enters the puncture needle ejection cylinder 31, the ejection piston 32 is strongly pushed, and the puncture needle 33 is ejected; at this time, the air outlet 314 also has an effect of discharging air in the ring cavity of the needle insertion ejection cylinder 31, thereby reducing ejection resistance. The puncture needle 33 penetrates the outer circumferential surface of the tire by instantaneous high-speed ejection to deflate the tire.

The tire pricking controller 4 comprises a control valve body 41 fixedly installed in the box body 1, a valve rod channel is arranged in the control valve body 41, a control valve rod 42 is installed in the valve rod channel in a sliding mode, the control valve rod 42 extends out of one end of the valve rod channel and abuts against the free end of the wheel pressing plate 2, the other end of the valve rod channel is sealed and arranged, and an outward extending retaining spring 43 is arranged between the control valve rod 42 and the sealed end of the valve rod channel.

The control valve body 41 is provided with an air source inlet 44 connected with the tire pricking power source 5, an air injection control port 45 connected with the air injection port 37 through a pipeline, and a balance control port 46 connected with the balance port 38 through a pipeline, the control valve body 41 is internally provided with an air injection first channel 441 and a balance first channel 442 which are communicated with the air source inlet 44 and the valve rod channel, the control valve body 41 is internally provided with an air injection second channel 451 communicated with the air injection control port 45 and the valve rod channel, and a balance second channel 461 communicated with the balance control port 46 and the valve rod channel, and the control valve body 41 is provided with a balance pressure release channel 47 on one side of the balance second channel 461, which is far away from the top end of the control valve rod 42. The control valve rod 42 is provided with a gas injection holding ring groove 421 for keeping the gas injection first channel 441 and the gas injection second channel 451 in constant communication, and the control valve rod 42 is provided with a pressure release control ring groove 422 for communicating the balance first channel 442 and the balance second channel 461. The distance between the balance first passage 442 and the abutting end of the control valve stem 42 is smaller than the distance between the balance second passage 461 and the abutting end of the control valve stem 42, and the length of the pressure release control ring groove 422 is larger than the distance between the closest points of the balance second passage 461 and the balance pressure release passage 47.

With the above configuration, when the control valve rod 42 is held in the extended state by the extended holding spring 43, that is, when the wheel platen 2 has no wheel punching action, the gas-injection first passage 441 and the gas-injection second passage 451 communicate with each other, and the balance first passage 442 and the balance second passage 461 communicate with each other. At this time, in the gas injection control cylinder 34, the gas injection ring cavity and the balance bottom cavity are filled with gas at the same pressure, and the ejection gas inlet 315 is normally plugged by the gas blocking column 351. When the wheel pressure plate 2 is pressed, it presses the control valve rod 42 to slide in the control valve body 41. The longer gas injection holding ring groove 421 can maintain the communication between the gas injection first channel 441 and the gas injection second channel 451, so that high-pressure gas is held in the gas injection ring groove; since the balance first passage 442 is closer to the abutting end of the control valve rod 42, during the sliding process of the control valve rod 42, the control valve rod 42 firstly seals the balance first passage 442, and then since the length of the pressure release control ring groove 422 is greater than the closest point distance between the balance second passage 461 and the balance pressure release passage 47, the pressure release control ring groove 422 is immediately communicated with the balance second passage 461 and the balance pressure release passage 47, and the high-pressure gas in the balance bottom cavity can be discharged to the external environment from the balance second passage 461 and the balance pressure release passage 47. To this end, the tire puncture assembly 3 performs a tire puncture operation.

In the embodiment, an inner sliding limiting ring 48 is disposed in the stem passage, and the inner sliding limiting ring 48 can control the inner sliding distance of the control valve stem 42 to ensure that the control valve stem 42 can realize the pressure relief and air release of the balanced second passage 461 and the balanced pressure relief passage 47 after blocking the balanced first passage 442.

Since it may not be long enough for a wheel to punch the wheel platen 2, when the wheel platen 2 loses its punching function, the control valve rod 42 is extended again by the extension retaining spring 43, the balance first channel 442 is communicated with the balance second channel 461 again, the control piston 35 in the air injection control cylinder 34 is under the action of the choke retaining spring 36, and the choke cylinder 351 blocks the ejection air inlet 315 again. However, at this time, since the ejection piston 32 is pushed to the ejection end 312, the puncture needle ejection cylinder 31 is filled with high-pressure gas, and the puncture needle 33 keeps the puncture operation by the high-pressure gas. Even if the wheel pressing plate 2 is pressed again in the later stage, the tire puncturing action of the tire puncturing needle 33 is not affected, so the tire puncturing is reliable in the embodiment.

This embodiment still fix on the tire pricking needle 33 and be equipped with tire pricking barb 332, tire pricking barb 332 can avoid tire pricking needle 33 breaks away from being pricked the tire, guarantees to prick the tire gassing effect. Meanwhile, the tire puncturing needle 33 which cannot be separated can drive the whole body of the embodiment to rotate along with the punctured tire when the tire puncturing needle touches the wheel with larger diameter and can overturn the wheel of the embodiment, and the whole body of the embodiment can be impacted and clamped at the gap at the rear side of the punctured tire, so that the escaping behavior of escaping the vehicle can be further effectively prevented.

The tire pricking power source 5 in this embodiment includes a high pressure gas tank 51, the high pressure gas tank 51 is provided with an inflation inlet 52 and a gas source outlet 53 connected with the tire pricking controller 4, the box body 1 is fixedly provided with an inflation nozzle 54 connected with the inflation inlet 52 through a pipeline, and an inflation check valve 55 is arranged between the inflation nozzle 54 and the inflation inlet 52; and a pressure gauge 56 connected with the high-pressure air tank 51 is fixedly arranged on the box body 1. The charging connector 54 is used for supplementing air pressure into the high-pressure air tank 51, and the pressure gauge 56 can display the air pressure in the high-pressure air tank 51 in real time, so that a user can conveniently determine the sound condition of a power source at any time before use.

An ejection end cover 313 is installed at one end of the needle shooting barrel 31 close to the wheel pressing plate 2 in a threaded mode, and the ejection end cover 313 forms an ejection end 312 of the needle shooting barrel 31. After the embodiment is used, the ejection end cap 313 can be detached, which facilitates releasing the high-pressure air in the puncture needle ejection cylinder 31 on one hand, and facilitates the ejection piston 32 and the puncture needle 33 to be taken down separately on the punctured tire on the other hand, so as to facilitate later maintenance and replacement.

The vertical slidable mounting has walking frame 6 in the box body 1, at least three walking wheel 61 is installed to the bottom of walking frame 6, the bottom of box body 1 is equipped with each walking that walking wheel 61 corresponds respectively stretches the binding off 611. In this embodiment, the traveling frame 6 is two parts that are provided separately, and the high pressure gas tank 51 is installed between the two parts, and the traveling wheels 61 on each part of the traveling frame 6 are two, and four the traveling wheels 61 are arranged in a rectangular shape. Preferably, the traveling wheels 61 are universal wheels.

The box body 1 is rotatably provided with a stretching control crankshaft 62, the stretching control crankshaft 62 is provided with two crankshaft arms 621 capable of pushing against the walking frame 6 downwards, and the walking frame 6 is separated based on the embodiment, so that the number of the crankshaft arms 621 is two. An abutting retainer and a return retainer are arranged between the crank arm 621 and the box body 1. In this embodiment, when the crank arm 621 rotates downward, it can slide downward against the walking frame 6, the walking wheel 61 extends out of the walking hole 611 and lands on the ground, and the box body 1 is lifted off the ground, so that this embodiment is converted into a walking state. When the crank arm 621 reversely returns, the abutting action gradually disappears, the travelling wheel 61 is gradually retracted into the box body 1 under the self-weight action of the box body 1, and the box body 1 is restored to the ground. Wherein, the abutting retainer can ensure the reliable abutting action of the crank arm 621, and further ensure the stable walking action of the walking wheel 61.

The abutting retainer of this embodiment includes a first connecting pin 622 fixedly disposed on the crank arm 621, a second connecting pin 623 is fixedly disposed on the box body 1 on a side of the extending and retracting control crank 62 away from the first connecting pin 622, a crank arm retaining spring 624 is disposed between the first connecting pin 622 and the second connecting pin 623, and an abutting limiting protrusion corresponding to the second connecting pin 623 is disposed on the crank arm 621. When the crank arm 621 is pushing down against the traveling frame 6, the first connecting pin 622 will cross the center line of the extending control crank 62 and the second connecting pin 623, i.e. cross the dead point position, and the crank arm holding spring 624 starts to apply a force to the crank arm 621 to continue rotating downward; when the crank arm 621 continues to go beyond the vertical position and starts to rotate upward from the other side, the abutting limit protrusion limits the crank arm 621, and the crank arm 621 can maintain a reliable abutting action under the upward reaction force of the traveling frame 6, the force of the crank arm holding spring 624, and the rigid limit of the abutting limit protrusion.

This embodiment shows that one end of the crank arm 621 close to the second connecting pin 623 is provided with a rotation avoiding groove 625 corresponding to the second connecting pin 623, and after the crank arm 621 leans against downwards, finally, one groove edge of the rotation avoiding groove 625 leans against the second connecting pin 623 to form a limit, and this groove edge is the leaning limit protrusion in this embodiment.

The end portion of the stretching control crankshaft 62 is fixedly provided with a stretching control lock body 63 attached to the side wall of the box body 1, a stretching control lock groove 631 radially arranged is formed in the end face, attached to the side wall of the box body 1, of the stretching control lock body 63, a stretching control lock cylinder 641 is installed in the stretching control lock groove 631, a plugging avoiding long hole 642 corresponding to the stretching control lock cylinder 641 is formed in the side wall of the box body 1, a control connecting rod 643 radially arranged and extending out of the plugging avoiding long hole 642 is fixedly arranged in the middle of the stretching control lock cylinder 641, and an anti-riot stick 644 is detachably installed at the outer end of the control connecting rod 643.

The retraction control lock core 641 and the control connecting rod 643 of this embodiment form a key for controlling whether this embodiment is in a walking state. When the box body 1 of this embodiment lands on the ground, the extending and retracting control lock groove 631 is parallel to the plug and pull-out avoiding long hole 642, and a user can insert the extending and retracting control lock cylinder 641 into the extending and retracting control lock groove 631 through the plug and pull-out avoiding long hole 642. When the antiriot stick 644 is operated to rotate, the extending and retracting control lock cylinder 641 can drive the crank arm 621 to rotate, so that the embodiment is finally changed into a walking state. After the vehicle is changed into a walking state, the extending and retracting control lock groove 631 and the plug and pull avoiding long hole 642 are crossed, and the extending and retracting control lock cylinder 641 cannot be separated from the extending and retracting control lock groove 631, so that the antiriot stick 644 forms a structure for controlling the movement of the box body 1, so that a user can push the embodiment to the front side of the wheel from a safety position far away from the vehicle or pull the embodiment out from the front side of the wheel, the damage to the user caused by sudden starting and escaping of the vehicle can be effectively avoided, and the use safety is greatly improved. In this embodiment, both ends of the stretching and retracting control crankshaft 62 are provided with the stretching and retracting control lock body 63, the two side walls of the box body 1 are respectively and correspondingly provided with the plugging and retracting avoiding slot 642, so that a user can plug and retract the stretching and retracting control lock cylinder 641 at one side convenient to operate.

Preferably, the plug-in avoiding long hole 642 is vertically arranged, so that when the embodiment is turned to the walking state, the extending-retracting control lock groove 631 is horizontal or approximately horizontal, the extending-retracting control lock cylinder 641 can utilize the rotational freedom degree between the extending-retracting control lock groove 631 and the avoidance of the plug-in avoiding long hole 642, so that the antiriot stick 644 in the embodiment can swing to a certain extent vertically, which can avoid the operation of bending down and pushing and pulling when in use, and is more convenient and labor-saving to use. Of course, the swing avoidance groove 632 corresponding to the control connection rod 643 is disposed on the groove edge of the middle portion of the retractable control lock groove 631.

When the box body 1 lands on the ground, that is, the crank arm 621 is at the return position, the return retainer ensures that the retraction control lock groove 631 and the insertion/extraction avoiding slot 642 are parallel to each other, so as to ensure that the retraction control lock cylinder 641 can be inserted and extracted smoothly. Conventionally, the return retainer can also achieve the accuracy of the return position through a rigid return limit projection and spring force action. Based on the structure arrangement of the abutting holder of the present embodiment, when the crank arm 621 rotates back upward, the first connecting pin 622 also goes over the center line of the extension control crank 62 and the second connecting pin 623, i.e. goes over the dead point position, the crank arm holding spring 624 can also be used as a spring for applying force after returning back, and the other groove edge of the rotation avoiding groove 625 can finally abut against the second connecting pin 623 to form a rigid limit for returning back, and the crank arm 621 can keep the stable and accurate position of returning back under the action of the rigid limit and the crank arm holding spring 624. The arrangement of the rotation avoiding groove 625 can simplify the overall structure of the limiting in the embodiment, so that the structure of the embodiment is more compact; of course, those skilled in the art will recognize that it is also possible to provide the case body 1 with a stop protrusion for abutting against and returning to the original position.

Preferably, two arc-shaped connecting sleeves 645 are hooped between the control connecting rod 643 and the proximal ends of the antiriot sticks 644, one ends of the two arc-shaped connecting sleeves 645 are hinged, and the other ends of the two arc-shaped connecting sleeves 645 are provided with hoop fasteners 646, wherein the hoop fasteners 646 can be obtained by referring to a box fastener structure; the inner wall of at least one arc-shaped connecting sleeve 645 is provided with anti-skidding convex thorns 647. Thus, the present embodiment can assist the operation of the present embodiment to perform remote safe operation by using the existing antiriot stick 644, and the independent use of the antiriot stick 644 is not affected when the present embodiment is used.

In conclusion, the embodiment facilitates the operator to push the box body 1 to the front side of the wheel of the parked vehicle at a safety position far away from the vehicle by means of the length of the antiriot stick 644, so as to limit the parked vehicle, which can obviously avoid the injury of the suddenly started and fleeed vehicle to the operator, and significantly improve the operation safety. The insertion and extraction control of the retractable control lock core 641 is convenient for the box body 1 to limit the vehicle independently without affecting the normal use of the antiriot stick 644. In the embodiment, for the vehicle which is suddenly started to escape, the escaping vehicle is forced to not finish normal running mainly in a way of puncturing tires and deflating. In the embodiment, the smooth operation of tire puncture is ensured by the optimized design of the anti-retreat inclined pricks 11, the anti-skid protrusions 24 and the like; the design of tire puncturing barbs 332 enables the tire puncturing device to integrally rotate along with the punctured tire, and running of a fleeing vehicle is obviously affected. Therefore, the fleeing vehicle can not easily generate the accidents of hurting people and destroying objects, the personnel on duty can easily and quickly catch the fleeing vehicle even without driving for pursuing, and the fleeing hazard and the fleeing pursuing difficulty are obviously reduced. This embodiment compact structure, small can conveniently use anytime and anywhere, and is effectual to the restriction of the vehicle that parks, and safe in utilization, does benefit to smoothly to carry out the inspection of vehicle parking.

Example two: as shown in fig. 13, 14 and 15, the present embodiment is different from the first embodiment in that: the both sides of box body 1 still rotate respectively and install and embrace wheel arm 7, rotate to install on box body 1 and embrace wheel transmission shaft 71, the both ends of embracing wheel transmission shaft 71 are equipped with respectively integratively and embrace wheel drive worm 72, each embrace and be equipped with respectively on the wheel arm 7 with correspond the side embrace wheel drive worm wheel 73 of wheel drive worm 72 transmission connection. When the wheel embracing transmission shaft 71 rotates, the two wheel embracing arms 7 can be simultaneously opened or simultaneously embraced under the transmission of the worm gear mechanism. Of course, the spiral directions of the two clasping wheel transmission worms 72 are opposite. The wheel embracing transmission shaft 71 and the stretching control crankshaft 62 are in transmission connection, and the transmission connection is preferably a toothed belt transmission, so that the wheel embracing arm 7 can be opened and clasped to form linkage with the rotation of the stretching control crankshaft 62.

On the basis of the above structure, when using this embodiment, after the user inserts the retraction control lock cylinder 641 into the retraction control lock groove 631, the user rotates the anti-riot stick 644, and the road wheel 61 extends downward out of the walking retraction opening 611, so that this embodiment is converted into a walking state. Meanwhile, the wheel clasping transmission shaft 71 rotates simultaneously under the transmission action, and the two wheel clasping arms 7 are opened through the worm gear mechanism. The opened wheel holding arm 7 is not higher than the box body 1, and the wheel can be smoothly moved to the front side of the wheel. Upon reaching the front side of the wheel, the user reverses the rotation of the antiriot stick 644, the traction wheels 61 retract, and the case 1 is again grounded. Meanwhile, the wheel embracing transmission shaft 71 rotates reversely at the same time under the transmission action, and the two wheel embracing arms 7 form an embracing closure. And therefore the housing 1 is located adjacent the front side of the wheel, the two wheel embracing arms 7 can embrace the tyre and the hub directly. Therefore, when the vehicle is prevented from suddenly starting to flee, no matter whether the vehicle goes forward to flee or runs backwards to flee, under the embracing of the two wheel embracing arms 7, the running of the fleeing vehicle can be obviously limited, and the vehicle limiting effect is further improved. The rotation angle of the wheel embracing arm 7 can be adjusted by designing the transmission ratio between the stretching control crankshaft 62 and the wheel embracing transmission shaft 71, which can be easily obtained by those skilled in the art according to the existing basic knowledge and will not be described herein again.

Preferably, the box body 1 is provided with a wheel clasping lock 74 corresponding to the wheel clasping arm 7. After the two wheel embracing arms 7 embrace the tire and the hub, the wheel embracing arms 7 can be locked through the wheel embracing locks 74; after the wheel-holding lock 74 is locked, the extending and retracting control crankshaft 62 is also locked under the action of the transmission structure, so that the wheel restriction state is not easily released, and the use is more reliable. In this embodiment, a lock hole is formed in at least one of the wheel clasping arms 7, and the wheel clasping lock 74 can lock the swing of the wheel clasping arm 7 by a lock tongue inserted into the lock hole, referring to the structure of the lock cylinder of the existing wheel lock.

This embodiment increases on pricking child basis and embraces the wheel function, has further improved the wheel restriction effect, embraces the operation that the wheel function and walking removed moreover and can form linkage cooperation, convenient to use.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Initiative passive car arrester, including the box body, its characterized in that: one end of the box body is rotatably provided with a wheel pressing plate which is obliquely arranged, the free end of the wheel pressing plate is arranged outside the box body, a pressing plate avoiding opening corresponding to the wheel pressing plate is arranged on the box body, and an outer-swing elastic force applicator and an outer-swing rigid limiter are arranged between the wheel pressing plate and the box body; the tire pricking component is arranged in the box body and faces the wheel pressing plate, tire pricking avoiding openings corresponding to the tire pricking components are formed in the wheel pressing plate, the tire pricking components are connected with a tire pricking power source together, and a tire pricking controller corresponding to the free end of the wheel pressing plate is arranged between the tire pricking component and the tire pricking power source; a walking frame is vertically and slidably mounted in the box body, at least three walking wheels are mounted at the bottom end of the walking frame, and walking stretching and closing-up ports corresponding to the walking wheels are arranged at the bottom of the box body; a stretching and retracting control crankshaft is rotatably arranged in the box body, and a crankshaft arm capable of downwards abutting against the walking frame is arranged on the stretching and retracting control crankshaft; the end part of the stretching and retracting control crankshaft is fixedly provided with a stretching and retracting control lock body which is attached to the side wall of the box body, the end face, attached to the side wall of the box body, of the stretching and retracting control lock body is provided with a stretching and retracting control lock groove which is arranged in the radial direction, a stretching and retracting control lock cylinder is installed in the stretching and retracting control lock groove, the side wall of the box body is provided with a plug avoiding long hole corresponding to the stretching and retracting control lock cylinder, the middle part of the stretching and retracting control lock cylinder is fixedly provided with a control connecting rod which is arranged in the radial direction and extends out of the plug avoiding long hole, and the outer end of the control connecting rod is detachably provided with an anti-riot stick;

the tire pricking assembly comprises a needle pricking ejection barrel fixedly arranged in the box body, and the needle pricking ejection barrel comprises a gas injection end and an ejection end; an ejection piston is slidably mounted in the puncture needle ejection cylinder, a puncture needle extending out of the ejection end is fixedly arranged on the ejection piston, an air vent is arranged at the inner end of the puncture needle, and an air exhaust port is arranged at the ejection end; the gas injection end is fixedly and hermetically connected with a gas injection control cylinder, and a launch gas inlet communicated with the gas injection control cylinder and the needle ejection cylinder is formed in the gas injection end; a control piston is slidably mounted in the gas injection control cylinder, and a gas blocking column capable of blocking the ejection gas inlet is fixedly arranged on the control piston; the control piston divides the interior of the gas injection control cylinder into a gas injection ring cavity and a balance bottom cavity, a gas-blocking retaining spring is installed in the balance bottom cavity, and a gas injection port communicated with the gas injection ring cavity and a balance port communicated with the balance bottom cavity are formed in the gas injection control cylinder;

the tire pricking controller comprises a control valve body fixedly installed in the box body, a valve rod channel is arranged in the control valve body, a control valve rod is installed in the valve rod channel in a sliding mode, the control valve rod extends out of one end of the valve rod channel and abuts against the free end of the wheel pressing plate, the other end of the valve rod channel is blocked, and an outward extending retaining spring is arranged between the control valve rod and the blocking end of the valve rod channel; the control valve body is provided with an air source inlet connected with the tire pricking power source, an air injection control port connected with the air injection port through a pipeline, and a balance control port connected with the balance port through a pipeline, the control valve body is internally provided with an air injection first channel and a balance first channel which are communicated with the air source inlet and the valve rod channel, the control valve body is internally provided with an air injection second channel communicated with the air injection control port and the valve rod channel, and a balance second channel communicated with the balance control port and the valve rod channel, and one side of the control valve body, which is positioned at the top leaning end of the balance second channel far away from the control valve rod, is provided with a balance pressure release channel; the control valve rod is provided with a gas injection retaining ring groove for keeping the gas injection first channel and the gas injection second channel communicated with each other, the control valve rod is provided with a pressure release control ring groove capable of communicating the balance first channel and the balance second channel, the distance between the balance first channel and the abutting end of the control valve rod is smaller than the distance between the balance second channel and the abutting end of the control valve rod, and the length of the pressure release control ring groove is larger than the distance between the balance second channel and the near end of the balance pressure release channel.

2. The active and passive car arrester of claim 1, wherein: and a tire puncturing barb is fixedly arranged on the tire puncturing needle.

3. The active and passive car arrester of claim 1, wherein: an inner sliding limiting ring platform is arranged in the valve rod channel.

4. The active and passive car arrester of claim 1, wherein: the bottom of the box body is provided with an anti-retreat oblique thorn.

5. The active and passive car arrester of claim 1, wherein: an abutting retainer and a return retainer are arranged between the crank arm and the box body.

6. The active and passive car arrester of claim 1, wherein: two arc-shaped connecting sleeves are hooped between the control connecting rod and the near end of the anti-riot stick, one ends of the two arc-shaped connecting sleeves are hinged and connected, the other ends of the two arc-shaped connecting sleeves are hooped and fastened, and at least one anti-skidding convex thorn is arranged on the inner wall of each arc-shaped connecting sleeve.

7. The active and passive car arrester of claim 1, wherein: the tire pricking power source comprises a high-pressure gas tank, an inflation inlet and a gas source outlet connected with the tire pricking controller are arranged on the high-pressure gas tank, an inflation nozzle connected with the inflation inlet through a pipeline is fixedly arranged on the box body, and an inflation check valve is arranged between the inflation nozzle and the inflation inlet; and a pressure gauge connected with the high-pressure gas tank is fixedly arranged on the box body.

8. The active and passive car arrester of claim 1, wherein: the two sides of the box body are respectively and rotatably provided with a wheel embracing arm, a wheel embracing transmission shaft is rotatably arranged on the box body, wheel embracing transmission worms are respectively and integrally arranged at the two ends of the wheel embracing transmission shaft, and a wheel embracing transmission worm wheel in transmission connection with the wheel embracing transmission worm at the corresponding side is respectively arranged on each wheel embracing arm; the wheel holding transmission shaft and the stretching and retracting control crankshaft are in transmission connection.