WO2018099443A1 - 防爆胎的单向阀 - Google Patents

防爆胎的单向阀 Download PDF

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Publication number
WO2018099443A1
WO2018099443A1 PCT/CN2017/114168 CN2017114168W WO2018099443A1 WO 2018099443 A1 WO2018099443 A1 WO 2018099443A1 CN 2017114168 W CN2017114168 W CN 2017114168W WO 2018099443 A1 WO2018099443 A1 WO 2018099443A1
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WO
WIPO (PCT)
Prior art keywords
inner tube
curved surface
valve
annular
spring
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Application number
PCT/CN2017/114168
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English (en)
French (fr)
Inventor
郑运婷
Original Assignee
郑运婷
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Filing date
Publication date
Application filed by 郑运婷 filed Critical 郑运婷
Publication of WO2018099443A1 publication Critical patent/WO2018099443A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/20—Inflatable pneumatic tyres or inner tubes having multiple separate inflatable chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres

Definitions

  • the invention relates to a one-way valve for a runflat of a motor vehicle.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a one-way valve for a runflat tire for reducing the occurrence of traffic accidents.
  • the explosion-proof tire comprises a rim, a tire tire, an inner tube and a one-way valve
  • the one-way valve of the explosion-proof tire comprises a first one-way valve and a second one-way valve
  • the tire casing is connected with the rim
  • the inner tube is located in the outer tube;
  • the inner tube is provided in plurality, the inner tube comprises a first inner tube and a second inner tube, the first one-way valve is disposed on the first inner tube, the first one-way valve is sealingly connected with the first inner tube, and the second one-way valve is Provided in the second inner tube, the second one-way valve is sealingly connected with the second inner tube;
  • the first air inlet of the first one-way valve is located in the tire cavity of the tire casing, and the first air outlet of the first one-way valve is located at the first inner valve
  • the first cavity of the inner tube is located;
  • the second air inlet of the second one-way valve is located in the first cavity of the first inner tube, and the
  • the use of the explosion-proof tire is: when the inner tube is manufactured, the second inner tube is installed in the first inner tube; when the outer tube is installed, the inner tube is first installed in the outer tube, then the outer tube is mounted on the rim, and then the rim and the motor vehicle are mounted. Wheel axle connection; in use, the compressed air source device is used to pass the rim of the rim
  • the casing of the outer casing is inflated. When the air pressure in the casing cavity reaches the set air pressure, the first one-way valve of the first inner tube is opened, and the compressed air enters the first type of the first inner tube from the first one-way valve.
  • the compressed air source device automatically stops inflating, and the air nozzle encloses the compressed air in the tire cavity, the first cavity and the second cavity;
  • the first inner tube In contact with the tire casing, the first inner tube contacts the rim through the first inner support column, and the explosion-proof tire supports the motor vehicle through the first inner tube, the outer diameter of the outer tire is substantially unchanged, and the distance from the axis of the wheel shaft to the ground is substantially unchanged, thereby effectively preventing The occurrence of a puncture accident
  • a second outer support column of the second inner tube is coupled to the first outer support column of the first inner tube, the first outer support column is coupled to the outer tube; the second inner support column of the second inner tube is coupled to the first inner support of the first inner tube
  • the column is connected, the first inner support column is connected with the rim, and the explosion-proof tire supports the motor vehicle through the second inner tube, so that the outer diameter of the outer tire does not follow the tire casing and the flat tire of the first inner tube, and the axis of the wheel shaft is grounded to the ground. The distance is maintained in the safe driving range of the motor vehicle, avoiding the sunken tires and avoiding the occurrence of a tire accident.
  • the one-way valve of the explosion-proof tire the first one-way valve of the one-way valve comprises a first valve body, a first valve core, a first spring and a first driving disk
  • the second one-way valve of the one-way valve comprises a second a valve body, a second valve core, a second spring and a second driving disc
  • the first valve body is sealingly connected with the first inner tube
  • the second valve body is sealingly connected with the second inner tube
  • the first valve body is provided with the first air guiding channel
  • the first valve core is dynamically coupled with the first air guiding passage, and the initial state of the first valve core is: the first valve core is sealingly connected with the first air guiding passage, the first spring is in a compressed state;
  • the first air guiding passage is The first air inlet is located in the tire casing, the first air outlet of the first air guiding channel is located in the first inner tube, the first upper end of the first valve core is connected with the first driving disk, and the first driving disk is located at the first air
  • the first driving disk is located in the tire casing, the first spring is located in the first air guiding channel, the first spring is connected with the first lower end of the first valve core, and the second valve body is provided a second air guiding passage, the second valve core and the second air guiding passage are mechanically coupled;
  • the initial state of the second valve core A second valve body and a second air guide passage sealingly connected, the second spring being in a compressed state;
  • a second inlet port of the second air-guiding channel positioned within the first tube, a second air outlet of the second air guiding passage is located in the second inner tube, a second upper end of the second valve core is connected to the second driving disk, and a second driving disk is located above the second air inlet of the second air guiding channel
  • the second driving plate is located in the first inner tube, the second spring is located in the second air guiding passage, and the second spring is connected to the second lower end of the second valve core.
  • the use of the check valve of the explosion-proof tire is: after the filling of the tire reaches the set pressure, the compressed air in the tire acts on the first driving plate of the first check valve, so that the driving force of the first valve core is greater than the first driving force a spring is applied to the elastic force of the first valve core to move the first valve core in a direction to open the first one-way valve, and the first valve core opens the first one-way valve against the elastic force of the first spring, so that the first valve core and the first valve core An air guiding gap occurs in the first air guiding passage; after the first one-way valve is opened, the compressed air in the tire enters from the first air inlet of the first one-way valve, and the compressed air of the tire passes through the first valve core and the first guide The air guiding gap enters between the air passages, and enters into the first inner tube by the first air outlet of the first air guiding passage; when the pressure of the first inner tube reaches the set pressure, the compressed air in the first inner tube acts on the first inner tube
  • the inner tube is maintained in a state of being pressurized, the first inner tube is in contact with the outer tube through the first outer support column, and the first inner tube is in contact with the rim 1 through the first inner support column, and the explosion proof tire supports the motor vehicle through the first inner tube to avoid or reduce partial deviation The occurrence of a tire accident; when the tire casing and the first inner tube are smashed by the weapon, the second inner tube is maintained in a state of being pressurized, and the second outer support column of the second inner tube is connected with the first outer support column of the first inner tube, An outer support column is connected to the outer tube; the second inner tube is A first support column within the first inner tube and support column is connected, a first inner rim is connected with the support column, a second tube support runflat vehicle, avoid or reduce the occurrence of the accident by the bias tire.
  • the explosion-proof tire comprises a tire casing, a first inner tube, a second inner tube, a first one-way valve and a second one-way valve; when the outer tube is inflated, the first inner tube is inflated through the first one-way valve, and the second The inner tube is inflated by the second one-way valve;
  • the one-way valve of the explosion-proof tire includes a first one-way valve and a second one-way valve, the first one-way valve includes a first valve body, a first valve body, a first spring, and
  • First drive a second check valve includes a second valve body, a second valve core, a second spring, and a second drive plate; when the tire casing is inflated, the first drive disk of the first check valve drives the first valve core to overcome the first The spring force of a spring opens the first valve core, and the first one-way valve is used to inflate the first inner tube; after the first inner tube is inflated, the second driving plate of the second one-way valve drives the second valve
  • the support column and the first inner support column support the tire; when the tire casing and the first inner tube are smashed by the weapon, the second inner tube is maintained in a state of being pressurized, and the second inner tube passes through the first outer support column, the first inner support column, The second outer support column and the second inner support column support the tire casing to avoid or reduce the occurrence of a partial tire accident.
  • Figure 1 is a schematic view showing the structure of an explosion proof tire
  • FIG. 2 is a schematic structural view of a check valve.
  • the explosion-proof tire includes a rim 1, a tire 2, an inner tube 3, and a check valve 37, and the check valve 37 includes the first a check valve 6 and a second check valve 7, the tire casing 2 is connected to the rim 1, the inner tube 3 is located in the tire casing 2; the inner tube 3 is provided in plurality, and the inner tube 3 comprises a first inner tube 4 and a second inner tube 5, first The check valve 6 is disposed on the first inner tube 4, the first check valve 6 is sealingly connected to the first inner tube 4, the second check valve 7 is disposed on the second inner tube 5, and the second check valve 7 is sealed with the second inner tube 5.
  • the first air inlet 8 of the first one-way valve 6 is located in the tire cavity 9 of the tire casing 2, and the first air outlet 10 of the first one-way valve 6 is located in the first cavity 11 of the first inner tube 4;
  • the second air inlet 12 of the second one-way valve 7 is located in the first cavity 11 of the first inner tube 4, and the second air outlet 13 of the second one-way valve 7 is located in the second cavity 14 of the second inner tube 5.
  • the direction in which the first check valve 6 is turned on is directed from the tire cavity 9 of the tire casing 2 to the first cavity 11 of the first inner tube 4, and is not conductive in the opposite direction; the direction in which the second check valve 7 is turned on is First cavity 1 of the first inner tube 4 1 is directed to the second cavity 14 of the second inner tube 5, which is not conductive in the opposite direction; the first inner tube 4 is annularly sealed, the first inner tube 4 is located in the outer casing cavity 9 of the outer tube 2; the second inner tube 5 is annularly sealed The inner tube, the second inner tube 5 is located in the first cavity 11 of the first inner tube 4.
  • a first space 15 is left between the outer tube 2 and the first inner tube 4, so that a second space 16 is left between the first inner tube 4 and the second inner tube 5,
  • the inner tube 4 is provided with a first outer support column 17 and a first inner support column 18, the first outer support column 17 and the first inner support column 18 are fixedly connected with the first inner tube 4, and the first outer support column 17 is located at the first Between the inner tube 4 and the outer tube 2, the first inner support column 18 is located between the first inner tube 4 and the rim 1; the second inner tube 5 is provided with a second outer support column 19 and a second inner support column 20, the second outer support The post 19 and the second inner support post 20 are fixedly coupled to the second inner tube 5, and the second outer support post 19 and the second inner support post 20 are located between the first inner tube 4 and the second inner tube 5.
  • the first outer support column 17, the first inner support column 18, the second outer support column 19, and the second inner support column 20 are made of rubber; the first outer support column 17 and the first inner support column 18 and the first inner tube 4 are utilized The adhesives are bonded together, and the second outer support post 19 and the second inner support post 20 are bonded to the second inner tube 5 with an adhesive.
  • the first outer support column 17 is provided in plurality, and the plurality of first outer support columns 17 are evenly distributed between the first inner tube 4 and the outer tube 2;
  • a plurality of inner support columns 18 are disposed between the first inner tube 4 and the rim 1;
  • the second outer support column 19 and the second inner support column 20 are provided with a plurality of A plurality of second outer support columns 19 and a plurality of second inner support columns 20 are evenly distributed between the first inner tube 4 and the second inner tube 5;
  • the first inner tube 4 is provided with a first left support column 21 and a first right support column 22, the first left support column 21 is located between the left sidewall 23 of the casing 2 and the first inner tube 4, the first right support column 22 is located between the right sidewall 24 of the casing 2 and the first inner tube 4;
  • the second inner tube 5 A second left support column 25 and a second right support column 26 are provided, and the second left support column 25 and the second right support column 26 are located between
  • the rim 1 is provided with an inner groove 27, the outer tube 2 is provided with an outer groove 28, and the first inner tube 4 is provided with a second inner groove 29 And a second outer groove 30; the first outer support column 17 of the first inner tube 4 is connected to the outer groove 28 of the tire casing 2, and the first inner support column 18 of the first inner tube 4 is connected to the inner groove 27 of the rim 1
  • the second outer support column 19 of the second inner tube 5 is connected to the second outer groove 30 of the first inner tube 4, and the second inner support column 20 of the second inner tube 5 is connected to the second inner groove 29 of the first inner tube 4. .
  • the rim 1 is composed of a single material, the second inner groove 29 of the first inner tube 4 and the second outer groove 30 are made of rubber, the second inner groove 29 and the second outer groove 30 and the first inner tube 4 Bonded together with the adhesive; the first outer support column 17 of the first inner tube 4 is embedded in the outer groove 28 of the outer tube 2, the first outer support column 17 is interference fit with the outer groove 28; the first inner tube 4 The first inner support column 18 is embedded in the inner groove 27 of the rim 1 , the first inner support column 18 is interference fit with the inner groove 27; the second outer support column 19 of the second inner tube 5 is embedded in the first inner tube 4 In the second outer groove 30, the second outer support column 19 is interference fit with the second outer groove 30; the second inner support column 20 of the second inner tube 5 is embedded in the second inner groove 29 of the first inner tube 4,
  • the inner support post 20 has an interference fit with the second inner recess 29; the inner recess 27, the outer recess 28, the second inner recess 29, and the second outer rece
  • the use of the explosion-proof tire is: when the inner tube 3 is manufactured, the second inner tube 5 is installed in the first inner tube 4; when the outer tube 2 is installed, the inner tube 3 is first installed in the outer tube 2, and then the outer tube 2 is mounted on the rim 1 Then, the rim 1 is connected to the wheel axle of the motor vehicle; in use, the casing 11 of the outer tire 2 is inflated through the air nozzle 31 of the rim 1 by means of a compressed air source device, and the air pressure in the casing cavity 9 is set.
  • the first check valve 6 of the first inner tube 4 is opened, and the compressed air enters the first cavity 11 of the first inner tube 4 from the first one-way valve 6, when the air pressure in the first cavity 11 reaches
  • the second check valve 7 of the second inner tube 5 is opened, and the compressed air enters the second cavity 14 of the second inner tube 5 from the second one-way valve 7; when the outer tube cavity 9, the first type
  • the compressed air source device automatically stops inflating, and the air nozzle 31 encloses the compressed air in the tire cavity 9, the first cavity 11 and the second cavity 14;
  • the first inner tube 4 In the state, the first inner tube 4 maintains the original charging state, the first inner tube 4 is in contact with the outer tube 2 through the first outer support column 17, and the first inner tube 4 is in contact with the rim 1 through the first inner support column 18, and the explosion proof tire passes
  • the first inner tube 4 supports the motor vehicle, the outer diameter of the outer tire 2 is substantially unchanged, and the distance from the axis of the wheel shaft to the ground is substantially unchanged, thereby effectively preventing the occurrence of a puncture accident.
  • each of the first outer support columns 17 is the same, and the axis of the first inner tube 4 after inflation is the same as the axis of the rim 1 and the axis of the tire 2; each second The height of the outer support column 19 is the same, and the axis of the second inner tube 5 after inflation is the same as the axis of the rim 1 and the axis of the tire casing 2.
  • the first inner tube 4 When the tire casing 2 and the first inner tube 4 are in a pressurized state, the first inner tube 4 is connected to the outer groove 28 of the tire casing 2 through a plurality of first outer support columns 17, and the outer groove 28 of the tire casing 2 and the tire of the tire casing 2 The faces 32 are joined together and the first inner tube 4 is joined to the inner groove 27 of the rim 1 by a plurality of first inner support columns 18.
  • the first inner tube 4 When the tire casing 2 loses pressure, the first inner tube 4 is maintained in a pressurized state, and the first inner tube 4 is connected to the outer groove 28 of the tire casing 2 through a plurality of first outer support columns 17, and the outer groove 28 of the tire casing 2 and the tire casing
  • the treads 32 of 2 are joined together, and the first inner tube 4 is coupled to the inner groove 27 of the rim 1 by a plurality of first inner support columns 18; with the first outer support column 17, the first inner support column 18
  • the inner groove 27 and the outer groove 28 connect the first inner tube 4 and the outer tube 2 together.
  • the first inner tube 4 When the tire casing 2 loses pressure, the first inner tube 4 is maintained in a pressurized state, and the first inner tube 4 is maintained in a state of being coaxially connected to the rim 1 and the tire casing 2.
  • the second check valve 7 is in the closed state, and the second inner tube 5 is closed.
  • the second outer support column 19 of the second inner tube 5 is connected to the first outer support column 17 of the first inner tube 4
  • the first outer support column 17 is connected to the tire casing 2
  • the second inner tube 5 is The two inner support columns 20 are connected to the first inner support column 18 of the first inner tube 4, the first inner support column 18 is connected to the rim 1, and the explosion proof tire supports the motor vehicle through the second inner tube 5, so that the outer diameter of the outer tube 2 does not follow.
  • the flat tire 2 and the first inner tube 4 have a puncture and become less severe, and the distance from the axis of the wheel axle to the ground is maintained in the safe driving range of the motor vehicle, and the tire casing 2 is prevented from being sunken, thereby avoiding the occurrence of a puncture traffic accident.
  • the second inner tube 5 is connected to the second outer groove 30 of the first inner tube 4 through a plurality of second outer support columns 19;
  • the inner tube 5 is joined to the second inner groove 29 of the first inner tube 4 by a plurality of second inner support columns 20.
  • the second inner tube 5 When the tire casing 2 and the first inner tube 4 are out of pressure, the second inner tube 5 is maintained in a pressurized state, and the second inner tube 5 is connected to the second outer groove 30 of the first inner tube 4 through a plurality of second outer support columns 19;
  • the second inner tube 5 is connected to the second inner groove 29 of the first inner tube 4 through a plurality of second inner support columns 20;
  • the second inner tube 5 is maintained in a state of being coaxially connected with the rim 1 and the tire tube 2;
  • An outer support column 17, a first inner support column 18, an inner groove 27 and an outer groove 28 connect the first inner tube 4 and the outer tube 2 together; using the second outer support column 19, the second inner support column 20,
  • the two outer grooves 30 and the second inner groove 29 connect the first inner tube 4 and the second inner tube 5 together.
  • the first left support column 21 of the first inner tube 4 is in contact with the left inner side of the tire casing 2
  • the first right support column 22 of the first inner tube 4 and the outer tube 2 are The right inner side contact
  • the second left support post 25 of the second inner tube 5 is in contact with the left inner side of the first inner tube 4
  • the second right support post 26 of the second inner tube 5 is in contact with the right inner side of the first inner tube 4
  • the support column 21, the first right support column 22, the second left support column 25, and the second right support column 26 closely connect the tire casing 2, the first inner tube 4, and the second inner tube 5 together.
  • first process seal is left in the first inner tube 4, and a second process interface is left in the second inner tube 5; the second inner tube 5 is placed on the process seal of the first inner tube 4 Into the first inner tube 4, and the second process interface of the second inner tube 5 is located outside the first process seal of the first inner tube 4, and the second process interface of the second inner tube 5 is closed outside the first process seal, second After the process interface is closed, the second inner tube 5 is placed in the first inner tube 4, and then the first process seal of the first inner tube 4 is closed.
  • the one-way valve 37 of the explosion-proof tire, the first check valve 6 of the one-way valve 37 includes a first valve body 38, a first valve body 39, a first spring 40, and a first drive plate 41, the first of which is a check valve 37
  • the two-way valve 7 includes a second valve body 42, a second valve core 43, a second spring 44, and a second drive plate 45; the first valve body 38 is sealingly connected to the first inner tube 4, and the second valve body 42 is The second inner tube 5 is sealingly connected; the first valve body 38 is provided with a first air guiding passage 33, and the first valve core 39 is mechanically coupled with the first air guiding passage 33.
  • the initial state of the first valve core 39 is: the first valve core 39 is sealingly connected to the first air guiding channel 33, the first spring 40 is in a compressed state; the first air inlet 34 of the first air guiding channel 33 is located in the tire casing 2, and the first air outlet port 46 of the first air guiding channel 33 Located in the first inner tube 4, the first upper end 47 of the first valve core 39 is connected to the first driving disc 41, and the first driving disc 41 is located above the first air inlet 34 of the first air guiding passage 33, the first driving The disc 41 is located in the casing 2, the first spring 40 is located in the first air guiding passage 33, the first spring 40 is connected to the first lower end 48 of the first valve core 39, and the second valve body 42 is provided with a second air guiding passage.
  • the second valve core 43 is mechanically coupled with the second air guiding passage 49; the initial state of the second valve core 43 is: the second valve core 43 is sealingly connected with the second air guiding passage 49, and the second spring 44 is compressed.
  • the second air inlet 52 of the second air guiding passage 49 is located in the first inner tube 4, the second air outlet 53 of the second air guiding passage 49 is located in the second inner tube 5, and the second upper end of the second valve core 43 54 is connected to the second driving plate 45, the second driving plate 45 is located above the second air inlet 52 of the second air guiding passage, the second driving disk 45 is located in the first inner tube 4, and the second spring 44 is located in the second guiding portion In the air passage 49, the second spring 44 is coupled to the second lower end 55 of the second spool 43.
  • the first valve body 38 of the first check valve 6 is provided with a first guide sleeve 56, and the first guide sleeve 56 is provided with a first guide hole 57, A guide sleeve 56 is disposed at the first air inlet 34 of the first air guiding passage 33.
  • the first driving disk 41 is provided with a first guiding post 58.
  • the first driving plate 41 passes through the first guiding post 58 and the first spool 39.
  • the first guide post 58 is mechanically coupled to the first guide sleeve 56.
  • the first valve body 38 is provided with a first annular concave curved surface 59 and a first annular concave curved surface 60.
  • the first valve core 39 is provided with a first An annular upper convex curved surface 61 and a first annular lower convex curved surface 62; the first annular upper convex curved surface 61 of the first valve core 39 is movably coupled with the first annular upper concave curved surface 59 of the first valve body 38, The first annular upper convex curved surface 61 is sealingly connected with the first annular upper concave curved surface 59; the first annular lower convex curved surface 62 of the first valve core 39 and the first annular concave concave curved surface 60 of the first valve body 38 move The first annular lower convex arc surface 62 is sealingly coupled to the first annular lower concave curved surface 60.
  • the first annular concave curved surface 59 is a spherical surface, and the radius of the first annular concave curved surface 59 is gradually reduced from the bottom to the top;
  • the convex arc surface 62 is a spherical surface, and the radius of the first annular lower convex curved surface 62 is gradually reduced from the bottom to the top;
  • the first annular concave concave curved surface 60 is a spherical surface, and the radius of the first annular concave concave curved surface 60 is from bottom to top.
  • the first annular upper convex curved surface 61 is a spherical surface, and the radius of the first annular upper convex curved surface 61 is gradually reduced from the bottom to the top; after the first inner tube 4 is pressurized to reach a set value, the first inner tube 4 is inside The compressed air and the first spring 40 are pressed against the first spool 39 to maintain the first inner tube 4 in a pressurized state.
  • the second valve body 42 of the second check valve 7 is provided with a second guide sleeve 63, and the second guide sleeve 63 is provided with a second guide hole 64,
  • the second guide sleeve 63 is disposed on the second air inlet 52 of the second air guide passage 49, the second drive plate 45 is provided with the second guide post 50, and the second drive plate 45 passes through the second guide post 50 and the second spool 43 is connected, the second guiding post 50 is mechanically coupled with the second guiding sleeve 63;
  • the second valve body 42 is provided with a second annular upper concave curved surface 65 and a second annular concave concave curved surface 66, and the second valve core 43 is provided a second annular upper convex curved surface 67 and a second annular lower convex curved surface 68;
  • the second annular upper convex curved surface 67 of the second valve core 43 is movably coupled
  • the second annular concave curved surface 65 is a spherical surface, and the radius of the second annular upper concave curved surface 65 is gradually reduced from the bottom to the top;
  • the second ring The convex arc surface 67 is a spherical surface, and the radius of the second annular upper convex curved surface 67 is gradually reduced from the bottom to the top;
  • the second annular concave concave curved surface 66 is a spherical surface, and the radius of the second annular concave concave curved surface 66 is
  • the second annular lower convex arc surface 68 is a spherical surface, and the radius of the second annular lower convex curved surface 68 is gradually reduced from bottom to top; after the second inner tube 5 is pressurized to reach a set value, the second inner tube The compressed air in the fifth and the second spring 44 are pressed against the second valve body 43 to maintain the second
  • the first spring 40 is a compression spring, and the first bottom portion 69 of the first air guiding passage 33 is provided with a first air outlet 70, and the upper end of the first spring 40 The first spring 40 is connected to the first bottom portion 69. The lower end of the first spring 40 is connected to the first bottom portion 69.
  • the direction of the elastic force of the first spring 40 is opposite to the direction in which the first check valve 6 is opened, and the first spool 39 is opened. With the direction facing downward, the first spring 40 acts on the first spool 39 with the spring force direction facing upward.
  • the second spring 44 is a compression spring, and the second bottom 71 of the second air guiding passage 49 is provided with a second air outlet 72, the upper end of the second spring 44 Connected to the second spool 43, the lower end of the second spring 44 is connected to the second bottom 71, the direction of the elastic force of the second spring 44 is opposite to the direction in which the second check valve 7 is opened, and the direction in which the second spool 43 is opened Downward, the second spring 44 acts on the second spool 43 in the direction of the spring force upward.
  • a first limit is left between the first drive disc 41 and the upper end of the first valve body 38.
  • the first driving disc 41 is provided with a first upper groove 51 and a first lower groove 74, and the first groove wall 75 of the first lower groove 74 is provided with a first a slot 76 for maintaining the first lower groove 74 in contact with the upper end of the first valve body 38, maintaining compressed air from the first slot 76 into the first air guiding passage 33;
  • the first driving plate 41, the first The guiding sleeve 56, the first guiding post 58 and the first spool 39 have the same axis;
  • the first valve body 38 is provided with a first driving slot 90, and the first driving disc 41 is mechanically coupled with the first driving slot 90, the first driving A gap is left between the disk 41 and the first drive slot 90.
  • a second limit is left between the second drive plate 45 and the upper end of the second valve body 42.
  • the interval 77 is used to control the stroke of the second valve core 43;
  • the second drive plate 45 is provided with a second upper groove 78 and a second lower groove 79, and the second groove wall 80 of the second lower groove 78 is provided with a
  • the second slot 81 is configured to maintain compressed air from the second slot 81 into the second air guiding passage 49 when the second lower recess 78 is in contact with the upper end of the second valve body 42;
  • the second driving disc 45, the second The guide sleeve 63, the second guide post 50 and the second spool 43 have the same axis;
  • the second valve body 42 is provided with a second drive slot 91,
  • the two driving plates 45 are dynamically coupled to the second driving groove 91, and a gap is left between the second driving plate 45 and the second driving groove 91.
  • the use of the check valve of the explosion-proof tire is: after the charging of the casing 2 reaches the set pressure, the compressed air in the casing 2 acts on the first driving plate 41 of the first check valve 6, so that the first valve core 39 is subjected to The driving force is greater than the elastic force of the first spring 40 applied to the first valve core 39, causing the first valve core 39 to move in the direction of opening the first one-way valve 6, and the first valve core 39 is opened against the elastic force of the first spring 40.
  • a check valve 6 causes an air guiding gap between the first valve core 39 and the first air guiding passage 33; after the first one-way valve 6 is opened, the compressed air in the tire casing 2 is firstly introduced by the first one-way valve 6
  • the air inlet 34 enters, and the compressed air of the tire casing 2 enters through the air gap between the first valve core 39 and the first air guiding passage 33, and enters the first inner tube 4 from the first air outlet 46 of the first air guiding passage 33.
  • the compressed air in the first inner tube 4 acts on the second driving plate 45 of the second one-way valve 7, so that the driving force of the second valve body 43 is greater than the first
  • the spring force applied by the second spring 44 to the second valve core 43 causes the second valve core 43 to move in the direction of opening the second check valve 7, and the second valve core 43 overcomes the first
  • the elastic force of the spring 44 opens the second check valve 7 to cause an air gap between the second valve core 43 and the second air guiding passage 49; after the second check valve 7 is opened, the compressed air in the first inner tube 4 is second.
  • the second air inlet 52 of the one-way valve 7 enters, and the compressed air enters through the air gap between the second valve core 43 and the second air guiding passage 49, and enters the second air outlet 53 of the second air guiding passage 49.
  • the second inner tube 5 after the pressure of the second inner tube 5 reaches the set pressure, the second valve core 43 closes the second check valve 7 by the elastic force of the second spring 44; after the second check valve 7 is closed,
  • the first check valve 6 is closed by the elastic force of the first spring 40; when the tire casing 2 is plucked by the weapon, the first check valve 6 is closed, and the first inner tube 4 is maintained in the state of being pressurized, the first inner tube 4
  • the first inner tube 4 is in contact with the tire 1 through the first inner support column 18 through the first outer support column 17, and the explosion-proof tire supports the motor vehicle through the first inner tube 4, thereby avoiding or reducing the occurrence of a partial tire accident;
  • the second inner tube 5 is
  • the compressed air enters from the tire casing 2 through the first guide hole 57 of the first guide sleeve 56, and the compressed air passes through the first annular upper convex surface 61 of the first valve core 39 and the first valve body 38.
  • the air conduction interval between the annular concave curved surfaces 59 and the first annular lower convex curved surface 62 passing through the first valve body 39 are spaced from the first annular concave curved surface 60 of the first valve body 38, and then The first inner tube 4 is entered by the first air outlet 70 of the first air guiding passage 33.
  • the compressed air enters from the first inner tube 4 through the second guide hole 64 of the second guide sleeve 63, and passes through the second annular upper convex surface 67 of the second valve body 43 and the first The air conduction interval of the second annular concave curved surface 65 of the second valve body 42 and the second annular lower convex curved surface 68 of the second valve body 43 and the second annular concave concave surface 66 of the second valve body 42
  • the air guiding interval is further entered into the second inner tube 5 by the second air outlet 72 of the second air guiding passage 49.
  • the first check valve 6 is controlled to open under the set pressure condition, and the first bottom portion 69 of the first air guiding passage 33 of the first one-way valve 6 is provided with a first bolt hole 82,
  • the first bolt hole 82 is provided with a first bolt 83, and the first bolt 83 is connected to the first bolt hole 82 by a thread; the upper end of the first spring 40 is in contact with the first valve core 39, and the lower end of the first spring 40 and the first bolt
  • the first spring seat plate 84 of the 83 is in contact with the first spring seat plate 84.
  • the first spring seat plate 84 is fixedly connected with the first positioning plate 85.
  • the first positioning plate 85 is connected to the first positioning plate 86 by the first positioning screw 86.
  • the first valve body 38 is fixedly connected.
  • the first air inlet 34 of the first check valve 6 is closedly connected with the interface of the pressure device, the pressure of the pressure device is adjusted to a set pressure range, and is adjusted by the first bolt 83.
  • the elastic force of the first spring 40 causes the first check valve 6 to be turned on under the set pressure condition, and then the first positioning screw 86 is fixedly coupled to the first valve body 38 by the first positioning plate 85.
  • the second check valve 7 is controlled to open under the set pressure condition, and the second bottom 71 of the second air guiding passage 49 of the second check valve 7 is provided with a second bolt hole 87,
  • the second bolt hole 87 is provided with a second bolt 88, and the second bolt 88 is connected to the second bolt hole 87 by a thread;
  • the upper end of the second spring 44 is in contact with the second valve core 43, the lower end of the second spring 44 and the second bolt
  • the second spring seat plate 89 of the 88 is in contact with the second spring seat plate 89, and the second spring seat plate 89 is fixedly connected with the second positioning plate 35.
  • the second positioning plate 35 is connected to the second positioning screw 35 by the second positioning screw 36.
  • the second valve body 42 is fixedly connected.
  • the second intake port 52 of the second check valve 7 is closedly connected with the interface of the pressure device, the pressure of the pressure device is adjusted to a set pressure range, and the second bolt 88 is adjusted.
  • the elastic force of the second spring 44 causes the second check valve 7 to be turned on under the set pressure condition, and then the second positioning screw 36 is fixedly coupled to the second valve body 42 by the second positioning plate 35.
  • the first lower groove 74 of the first one-way valve 6 is lowered
  • the first limit interval 73 between the end to the upper end of the first valve body 38 is equal to the stroke of the first spool 39; when the first spool 39 moves downward, the lower end of the first lower groove 74 contacts the first At the upper end of the valve body 38, the first spool 39 stops moving downward.
  • the second limit interval 77 between the lower end of the second lower groove 78 of the second check valve 7 to the upper end of the second valve body 42 and the stroke of the second spool 43 are moved. Equal; when the second spool 43 moves downward, when the lower end of the second lower groove 78 contacts the upper end of the second valve body 42, the second spool 43 stops moving downward.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Check Valves (AREA)

Abstract

防爆胎的单向阀（37），防爆胎包括有轮圈（1）、外胎（2）、内胎（3）以及单向阀（37），单向阀（37）包括有第一单向阀（6）以及第二单向阀（7），第一单向阀（6）包括有第一阀体（38）、第一阀芯（39）、第一弹簧（40）以及第一驱动盘（41）；第二单向阀（7）包括有第二阀体（42）、第二阀芯（43）、第二弹簧（44）以及第二驱动盘（45）；外胎（2）充气时，第一单向阀（6）向第一内胎（4）充气；第一内胎（4）充气后，第二单向阀（7）向第二内胎（5）充气；当外胎（2）失压时，第一单向阀（6）关闭，第一内胎（4）通过第一外支撑柱（17）以及第一内支撑柱（18）支撑外胎（2）；当外胎（2）、第一内胎（4）失压时，第二单向阀（7）关闭，第二内胎（5）通过第一外支撑柱（17）、第一内支撑柱（18）、第二外支撑柱（19）、第二内支撑柱（20）支撑外胎（2），减少偏胎事故的发生。

Description

防爆胎的单向阀 技术领域
本发明涉及一种机动车的防爆胎的单向阀。
背景技术
机动车在高速公路行驶时，一旦机动车的轮胎爆胎，机动车就容易出现偏胎故障，使机动车行驶失控，造成交通事故的发生；一种的防爆胎的单向阀已成防止交通事故的需要。
发明内容
本发明的目的是克服现有技术的不足，提供一种防爆胎的单向阀，用于减少交通事故的发生。
本发明所采用的技术方案是：防爆胎包括有轮圈、外胎、内胎以及单向阀，防爆胎的单向阀包括有第一单向阀以及第二单向阀，外胎与轮圈连接，内胎位于外胎内；内胎设有多个，内胎包括有第一内胎以及第二内胎，第一单向阀设于第一内胎，第一单向阀与第一内胎密封连接，第二单向阀设于第二内胎，第二单向阀与第二内胎密封连接；第一单向阀的第一进气口位于外胎的外胎型腔内，第一单向阀的第一出气口位于第一内胎的第一型腔内；第二单向阀的第二进气口位于第一内胎的第一型腔内，第二单向阀的第二出气口位于第二内胎的第二型腔内；第一单向阀导通的方向是由外胎的外胎型腔指向第一内胎的第一型腔，反方向不导通；第二单向阀导通的方向是由第一内胎的第一型腔指向第二内胎的第二型腔，反方向不导通；第一内胎设有第一外支撑柱以及第一内支撑柱，第一外支撑柱以及第一内支撑柱与第一内胎固定连接，第一外支撑柱位于与第一内胎与外胎之间，第一内支撑柱位于第一内胎与轮圈之间；第二内胎设有第二外支撑柱以及第二内支撑柱，第二外支撑柱以及第二内支撑柱与第二内胎固定连接，第二外支撑柱以及第二内支撑柱位于第一内胎与第二内胎之间。
防爆胎的使用方法是：制造内胎时，将第二内胎安装于第一内胎内；安装外胎时，先将内胎安装于外胎内，再将外胎安装于轮圈上，然后将轮圈与机动车的车轮轴连接；使用时，利用压缩空气源装置通过轮圈的气嘴 向外胎的外胎型腔充气，当外胎型腔内的气压达到设定的气压时，第一内胎的第一单向阀打开，压缩空气由第一单向阀进入到第一内胎的第一型腔，当第一型腔内的气压达到设定的气压时，第二内胎的第二单向阀打开，压缩空气由第二单向阀进入到第二内胎的第二型腔；当外胎型腔、第一型腔以及第二型腔的气压达到充气上限时，压缩空气源装置自动停止充气，气嘴将压缩空气封闭在外胎型腔、第一型腔以及第二型腔内；机动车在行驶的过程中，万一外胎被利器扎穿时，外胎型腔失压，第一单向阀处于关闭状态，第一内胎保持原有的充压状态，第一内胎通过第一外支撑柱与外胎接触，第一内胎通过第一内支撑柱与轮圈接触，防爆胎通过第一内胎支撑机动车，外胎外径基本不变，车轮轴的轴线到地面的距离基本没有改变，有效地防止爆胎事故的发生。
机动车在行驶的过程中，万一外胎以及第一内胎都被利器扎穿时，外胎型腔以及第一内胎失压，第二单向阀处于关闭状态，第二内胎保持原有的充压状态，第二内胎的第二外支撑柱与第一内胎的第一外支撑柱连接，第一外支撑柱与外胎连接；第二内胎的第二内支撑柱与第一内胎的第一内支撑柱连接，第一内支撑柱与轮圈连接，防爆胎通过第二内胎支撑机动车，使外胎的外径不跟随外胎以及第一内胎的爆胎而急激变小，车轮轴的轴线到地面的距离维持在机动车安全行驶的范围，避免外胎凹陷，避免爆胎交通事故的发生。
防爆胎的单向阀，单向阀的第一单向阀包括有第一阀体、第一阀芯、第一弹簧以及第一驱动盘，单向阀的第二单向阀包括有第二阀体、第二阀芯、第二弹簧以及第二驱动盘；第一阀体与第一内胎密封连接，第二阀体与第二内胎密封连接；第一阀体设有第一导气通道，第一阀芯与第一导气通道动配合连接，第一阀芯的初始状态是：第一阀芯与第一导气通道密封连接，第一弹簧处于被压缩状态；第一导气通道的第一进气口位于外胎内，第一导气通道的第一出气口位于第一内胎内，第一阀芯的第一上端与第一驱动盘连接，第一驱动盘位于第一导气通道的第一进气口的上方，第一驱动盘位于外胎内，第一弹簧位于第一导气通道内，第一弹簧与第一阀芯的第一下端连接；第二阀体设有第二导气通道，第二阀芯与第二导气通道动配合连接；第二阀芯的初始状态是：第二阀芯与第二导气通道密封连接，第二弹簧处于被压缩状态；第二导气通道的第二进气口位于第一内胎内， 第二导气通道的第二出气口位于第二内胎内，第二阀芯的第二上端与第二驱动盘连接，第二驱动盘位于第二导气通道的第二进气口的上方，第二驱动盘位于第一内胎内，第二弹簧位于第二导气通道内，第二弹簧与第二阀芯的第二下端连接。
防爆胎的单向阀的使用方法是：外胎充压达到设定的压力后，外胎内的压缩空气作用于第一单向阀的第一驱动盘，使第一阀芯受到的驱动力大于第一弹簧施加于第一阀芯的弹力，使第一阀芯向打开第一单向阀的方向移动，第一阀芯克服第一弹簧的弹力打开第一单向阀，使第一阀芯与第一导气通道出现导气间隙；第一单向阀打开后，外胎内的压缩空气由第一单向阀的第一进气口进入，外胎的压缩空气经第一阀芯与第一导气通道之间导气间隙进入，由第一导气通道的第一出气口进入到第一内胎内；当第一内胎的压力达到设定的压力后，第一内胎内的压缩空气作用于第二单向阀的第二驱动盘，使第二阀芯受到的驱动力大于第二弹簧施加于第二阀芯的弹力，使第二阀芯向打开第二单向阀的方向移动，第二阀芯克服第二弹簧的弹力打开第二单向阀，使第二阀芯与第二导气通道出现导气间隙；第二单向阀打开后，第一内胎内的压缩空气由第二单向阀的第二进气口进入，压缩空气经第二阀芯与第二导气通道之间导气间隙进入，由第二导气通道的第二出气口进入到第二内胎；当第二内胎的压力达到设定的压力后，第二阀芯在第二弹簧弹力的作用下关闭第二单向阀；第二单向阀关闭后，第一单向阀在第一弹簧弹力的作用下关闭；当外胎被利器扎穿失压时，第一单向阀关闭，第一内胎维持在充压状态，第一内胎通过第一外支撑柱与外胎接触，第一内胎通过第一内支撑柱与轮圈1接触，防爆胎通过第一内胎支撑机动车，避免或者减少偏胎事故的发生；当外胎、第一内胎被利器扎穿失压时，第二内胎维持在充压状态，第二内胎的第二外支撑柱与第一内胎的第一外支撑柱连接，第一外支撑柱与外胎连接；第二内胎的第二内支撑柱与第一内胎的第一内支撑柱连接，第一内支撑柱与轮圈连接，防爆胎通过第二内胎支撑机动车，避免或者减少偏胎事故的发生。
本发明的有益效果是：防爆胎包括有外胎、第一内胎、第二内胎、第一单向阀以及第二单向阀；外胎充气时，第一内胎通过第一单向阀充气，第二内胎通过第二单向阀充气；防爆胎的单向阀包括有第一单向阀以及第二单向阀，第一单向阀包括有第一阀体、第一阀芯、第一弹簧以及第一驱 动盘；第二单向阀包括有第二阀体、第二阀芯、第二弹簧以及第二驱动盘；外胎充气时，第一单向阀的第一驱动盘驱动第一阀芯克服第一弹簧的弹力打开第一阀芯，利用第一单向阀向第一内胎充气；第一内胎充气后，第二单向阀的第二驱动盘驱动第二阀芯克服第二弹簧的弹力打开第二阀芯，利用第二单向阀向第二内胎充气；当外胎被利器扎穿失压时，第一单向阀关闭，第一内胎维持在充压状态，第一内胎通过第一外支撑柱以及第一内支撑柱支撑外胎；当外胎、第一内胎被利器扎穿失压时，第二内胎维持在充压状态，第二内胎通过第一外支撑柱、第一内支撑柱、第二外支撑柱、第二内支撑柱支撑外胎，避免或者减少偏胎事故的发生。
附图说明
图1是防爆胎的结构示意图；
图2是单向阀的结构示意图。
具体实施方式
下面结合附图对本发明进行进一步的说明：
图1所示的防爆胎的结构示意图以及图2所示的单向阀的结构示意图，防爆胎包括有轮圈1、外胎2、内胎3以及单向阀37，单向阀37包括有第一单向阀6以及第二单向阀7，外胎2与轮圈1连接，内胎3位于外胎2内；内胎3设有多个，内胎3包括有第一内胎4以及第二内胎5，第一单向阀6设于第一内胎4，第一单向阀6与第一内胎4密封连接，第二单向阀7设于第二内胎5，第二单向阀7与第二内胎5密封连接；第一单向阀6的第一进气口8位于外胎2的外胎型腔9内，第一单向阀6的第一出气口10位于第一内胎4的第一型腔11内；第二单向阀7的第二进气口12位于第一内胎4的第一型腔11内，第二单向阀7的第二出气口13位于第二内胎5的第二型腔14内；第一单向阀6导通的方向是由外胎2的外胎型腔9指向第一内胎4的第一型腔11，反方向不导通；第二单向阀7导通的方向是由第一内胎4的第一型腔11指向第二内胎5的第二型腔14，反方向不导通；第一内胎4环形的密封内胎，第一内胎4位于外胎2的外胎型腔9内；第二内胎5为环形的密封内胎，第二内胎5位于第一内胎4的第一型腔11内。
为了避免第一内胎4被金属利器扎穿，使外胎2与第一内胎4之间留有第一空间15，使第一内胎4与第二内胎5之间留有第二空间16，第 一内胎4设有第一外支撑柱17以及第一内支撑柱18，第一外支撑柱17以及第一内支撑柱18与第一内胎4固定连接，第一外支撑柱17位于与第一内胎4与外胎2之间，第一内支撑柱18位于第一内胎4与轮圈1之间；第二内胎5设有第二外支撑柱19以及第二内支撑柱20，第二外支撑柱19以及第二内支撑柱20与第二内胎5固定连接，第二外支撑柱19以及第二内支撑柱20位于第一内胎4与第二内胎5之间。第一外支撑柱17、第一内支撑柱18、第二外支撑柱19以及第二内支撑柱20由橡胶构成；第一外支撑柱17以及第一内支撑柱18与第一内胎4利用粘合剂粘合在一起，第二外支撑柱19以及第二内支撑柱20与第二内胎5利用粘合剂粘合在一起。
为了实施利用第一内胎4以及第二内胎5支撑起外胎2，第一外支撑柱17设有多个，多个第一外支撑柱17均布于第一内胎4与外胎2之间；第一内支撑柱18设有多个，多个第一内支撑柱18均布于第一内胎4与轮圈1之间；第二外支撑柱19以及第二内支撑柱20设有多个，多个第二外支撑柱19以及多个第二内支撑柱20均布于第一内胎4与第二内胎5之间；第一内胎4设有第一左支撑柱21以及第一右支撑柱22，第一左支撑柱21位于外胎2的左胎侧23与第一内胎4之间，第一右支撑柱22位于外胎2的右胎侧24与第一内胎4之间；第二内胎5设有第二左支撑柱25以及第二右支撑柱26，第二左支撑柱25以及第二右支撑柱26位于第一内胎4与第二内胎5之间；第二左支撑柱25的中心线与第一左支撑柱21的中心线相同，第二右支撑柱26的中心线与第一右支撑柱22的中心线相同；第二左支撑柱25的数量与第一左支撑柱21的数量相同，第二右支撑柱26的数量与第一右支撑柱22的数量相同；第一内胎4的第一外支撑柱17与外胎2接触，第一内支撑柱18与轮圈1接触，第二内胎5的第二外支撑柱19以及第二内支撑柱20与第一内胎4接触；外胎2的外胎型腔9、第一内胎4的第一型腔11以及第二内胎5的第二型腔14内充满压缩空气。
为了实施将第一内胎4以及第二内胎5与外胎2连接在一起，轮圈1设有内凹槽27，外胎2设有外凹槽28，第一内胎4设有第二内凹槽29以及第二外凹槽30；第一内胎4的第一外支撑柱17与外胎2的外凹槽28连接，第一内胎4的第一内支撑柱18与轮圈1的内凹槽27连接；第二内胎5的第二外支撑柱19与第一内胎4的第二外凹槽30连接，第二内胎5的第二内支撑柱20与第一内胎4的第二内凹槽29连接。轮圈1的内凹槽27 与轮圈1由一体的材料构成，第一内胎4的第二内凹槽29以及第二外凹槽30由橡胶构成，第二内凹槽29以及第二外凹槽30与第一内胎4利用粘合剂粘合在一起；第一内胎4的第一外支撑柱17嵌入外胎2的外凹槽28内，第一外支撑柱17与外凹槽28过盈配合；第一内胎4的第一内支撑柱18嵌入轮圈1的内凹槽27内，第一内支撑柱18与内凹槽27过盈配合；第二内胎5的第二外支撑柱19嵌入第一内胎4的第二外凹槽30内，第二外支撑柱19与第二外凹槽30过盈配合；第二内胎5的第二内支撑柱20嵌入第一内胎4的第二内凹槽29内，第二内支撑柱20与第二内凹槽29过盈配合；内凹槽27、外凹槽28、第二内凹槽29、第二外凹槽30设有多个；第一内支撑柱18的数量与内凹槽27的数量相同，第一外支撑柱17的数量与外凹槽28的数量相同，第二外支撑柱19的数量与第二外凹槽30的数量相同，第二内支撑柱20的数量与第二内凹槽29的数量相同。
防爆胎的使用方法是：制造内胎3时，将第二内胎5安装于第一内胎4内；安装外胎2时，先将内胎3安装于外胎2内，再将外胎2安装于轮圈1上，然后将轮圈1与机动车的车轮轴连接；使用时，利用压缩空气源装置通过轮圈1的气嘴31向外胎2的外胎型腔9充气，当外胎型腔9内的气压达到设定的气压时，第一内胎4的第一单向阀6打开，压缩空气由第一单向阀6进入到第一内胎4的第一型腔11，当第一型腔11内的气压达到设定的气压时，第二内胎5的第二单向阀7打开，压缩空气由第二单向阀7进入到第二内胎5的第二型腔14；当外胎型腔9、第一型腔11以及第二型腔14的气压达到充气上限时，压缩空气源装置自动停止充气，气嘴31将压缩空气封闭在外胎型腔9、第一型腔11以及第二型腔14内；机动车在行驶的过程中，万一外胎2被利器扎穿时，外胎型腔9失压，第一单向阀6处于关闭状态，第一内胎4保持原有的充压状态，第一内胎4通过第一外支撑柱17与外胎2接触，第一内胎4通过第一内支撑柱18与轮圈1接触，防爆胎通过第一内胎4支撑机动车，外胎2外径基本不变，车轮轴的轴线到地面的距离基本没有改变，有效地防止爆胎事故的发生。
为了实施减少外胎2失压后的外径的变化，每个第一外支撑柱17的高度相同，充气后的第一内胎4的轴线与轮圈1轴线以及外胎2轴线相同；每个第二外支撑柱19的高度相同，充气后的第二内胎5的轴线与轮圈1的轴线以及外胎2的轴线相同。
外胎2以及第一内胎4处于充压状态时，第一内胎4通过多个第一外支撑柱17与外胎2的外凹槽28连接在一起，外胎2的外凹槽28与外胎2的胎面32连接在一起，以及第一内胎4通过多个第一内支撑柱18与轮圈1的内凹槽27连接在一起。
外胎2失压时，第一内胎4维持在充压状态，第一内胎4通过多个第一外支撑柱17与外胎2的外凹槽28连接在一起，外胎2的外凹槽28与外胎2的胎面32连接在一起，以及第一内胎4通过多个第一内支撑柱18与轮圈1的内凹槽27连接在一起；利用第一外支撑柱17、第一内支撑柱18、内凹槽27以及外凹槽28将第一内胎4与外胎2连接在一起。外胎2失压时，第一内胎4维持在充压状态，第一内胎4维持在与轮圈1以及外胎2同轴连接的状态。
机动车在行驶的过程中，万一外胎2以及第一内胎4都被利器扎穿时，外胎型腔9以及第一内胎4失压，第二单向阀7处于关闭状态，第二内胎5保持原有的充压状态，第二内胎5的第二外支撑柱19与第一内胎4的第一外支撑柱17连接，第一外支撑柱17与外胎2连接；第二内胎5的第二内支撑柱20与第一内胎4的第一内支撑柱18连接，第一内支撑柱18与轮圈1连接，防爆胎通过第二内胎5支撑机动车，使外胎2的外径不跟随外胎2以及第一内胎4的爆胎而急激变小，车轮轴的轴线到地面的距离维持在机动车安全行驶的范围，避免外胎2凹陷，避免爆胎交通事故的发生。
外胎2、第一内胎4以及第二内胎5维持在充压状态时，第二内胎5通过多个第二外支撑柱19与第一内胎4的第二外凹槽30连接在一起；第二内胎5通过多个第二内支撑柱20与第一内胎4的第二内凹槽29连接在一起。
外胎2以及第一内胎4失压时，第二内胎5维持在充压状态，第二内胎5通过多个第二外支撑柱19与第一内胎4的第二外凹槽30连接在一起；第二内胎5通过多个第二内支撑柱20与第一内胎4的第二内凹槽29连接在一起；第二内胎5维持在与轮圈1以及外胎2同轴连接的状态；利用第一外支撑柱17、第一内支撑柱18、内凹槽27以及外凹槽28将第一内胎4与外胎2连接在一起；利用第二外支撑柱19、第二内支撑柱20、第二外凹槽30以及第二内凹槽29将第一内胎4与第二内胎5连接在一起。
外胎2、第一内胎4以及第二内胎5充压后，第一内胎4的第一左支撑柱21与外胎2的左内侧接触，第一内胎4的第一右支撑柱22与外胎2的右内侧接触；第二内胎5的第二左支撑柱25与第一内胎4的左内侧接触，第二内胎5的第二右支撑柱26与第一内胎4的右内侧接触；利用第一左支撑柱21、第一右支撑柱22、第二左支撑柱25以及第二右支撑柱26将外胎2、第一内胎4以及第二内胎5紧密连接在一起。
第一内胎4以及第二内胎5制造时，于第一内胎4留出第一工艺封口，于第二内胎5留出第二工艺接口；将第二内胎5于第一内胎4的工艺封口放入第一内胎4内，并使第二内胎5的第二工艺接口位于第一内胎4的第一工艺封口外，于第一工艺封口外将第二内胎5的第二工艺接口封闭，第二工艺接口封闭后，再将第二内胎5放入第一内胎4内，然后将第一内胎4的第一工艺封口封闭。
防爆胎的单向阀37，单向阀37的第一单向阀6包括有第一阀体38、第一阀芯39、第一弹簧40以及第一驱动盘41，单向阀37的第二单向阀7包括有第二阀体42、第二阀芯43、第二弹簧44以及第二驱动盘45；第一阀体38与第一内胎4密封连接，第二阀体42与第二内胎5密封连接；第一阀体38设有第一导气通道33，第一阀芯39与第一导气通道33动配合连接，第一阀芯39的初始状态是：第一阀芯39与第一导气通道33密封连接，第一弹簧40处于被压缩状态；第一导气通道33的第一进气口34位于外胎2内，第一导气通道33的第一出气口46位于第一内胎4内，第一阀芯39的第一上端47与第一驱动盘41连接，第一驱动盘41位于第一导气通道33的第一进气口34的上方，第一驱动盘41位于外胎2内，第一弹簧40位于第一导气通道33内，第一弹簧40与第一阀芯39的第一下端48连接；第二阀体42设有第二导气通道49，第二阀芯43与第二导气通道49动配合连接；第二阀芯43的初始状态是：第二阀芯43与第二导气通道49密封连接，第二弹簧44处于被压缩状态；第二导气通道49的第二进气口52位于第一内胎4内，第二导气通道49的第二出气口53位于第二内胎5内，第二阀芯43的第二上端54与第二驱动盘45连接，第二驱动盘45位于第二导气通道的第二进气口52的上方，第二驱动盘45位于第一内胎4内，第二弹簧44位于第二导气通道49内，第二弹簧44与第二阀芯43的第二下端55连接。
为了避免第一单向阀6的第一阀芯39摆动，第一单向阀6的第一阀体38设有第一导套56，第一导套56设有第一导孔57，第一导套56设于第一导气通道33的第一进气口34，第一驱动盘41设有第一导柱58，第一驱动盘41通过第一导柱58与第一阀芯39连接，第一导柱58与第一导套56动配合连接；第一阀体38设有第一环形上凹弧面59以及第一环形下凹弧面60，第一阀芯39设有第一环形上凸弧面61以及第一环形下凸弧面62；第一阀芯39的第一环形上凸弧面61与第一阀体38的第一环形上凹弧面59动配合连接，第一环形上凸弧面61与第一环形上凹弧面59密封连接；第一阀芯39的第一环形下凸弧面62与第一阀体38的第一环形下凹弧面60动配合连接，第一环形下凸弧面62与第一环形下凹弧面60密封连接。
为了实施第一阀芯39与第一阀体38的密封连接，第一环形上凹弧面59为圆球面，第一环形上凹弧面59的半径由下向上逐步变小；第一环形下凸弧面62为圆球面，第一环形下凸弧面62的半径由下向上逐步变小；第一环形下凹弧面60为圆球面，第一环形下凹弧面60的半径由下向上逐步变小；第一环形上凸弧面61为圆球面，第一环形上凸弧面61的半径由下向上逐步变小；第一内胎4充压达到设定值后，第一内胎4内的压缩空气以及第一弹簧40施压于第一阀芯39，维持第一内胎4在充压的状态。
为了避免第二单向阀7的第二阀芯43摆动，第二单向阀7的第二阀体42设有第二导套63，第二导套63设有第二导孔64，第二导套63设于第二导气通道49的第二进气口52上，第二驱动盘45设有第二导柱50，第二驱动盘45通过第二导柱50与第二阀芯43连接，第二导柱50与第二导套63动配合连接；第二阀体42设有第二环形上凹弧面65以及第二环形下凹弧面66，第二阀芯43设有第二环形上凸弧面67以及第二环形下凸弧面68；第二阀芯43的第二环形上凸弧面67与第二阀体42的第二环形上凹弧面65动配合连接，第二环形上凸弧面67与第二环形上凹弧面65密封连接；第二阀芯43的第二环形下凸弧面68与第二阀体42的第二环形下凹弧面66动配合连接，第二环形下凸弧面68与第二环形下凹弧面66密封连接。
为了实施第二阀芯43与第二阀体42的密封连接，第二环形上凹弧面65为圆球面，第二环形上凹弧面65的半径由下向上逐步变小；第二环 形上凸弧面67为圆球面，第二环形上凸弧面67的半径由下向上逐步变小；第二环形下凹弧面66为圆球面，第二环形下凹弧面66的半径由下向上逐步变小；第二环形下凸弧面68为圆球面，第二环形下凸弧面68的半径由下向上逐步变小；第二内胎5充压达到设定值后，第二内胎5内的压缩空气以及第二弹簧44施压于第二阀芯43，维持第二内胎5在充压的状态。
为了实施第一阀芯39与第一阀体38的紧密接触，第一弹簧40为压缩弹簧，第一导气通道33的第一底部69设有第一出气孔70，第一弹簧40的上端与第一阀芯39连接触，第一弹簧40的下端与第一底部69连接，第一弹簧40弹性作用力的方向与第一单向阀6打开的方向相反，第一阀芯39打开的方向朝下，第一弹簧40作用于第一阀芯39的弹力方向朝上。
为了实施第二阀芯43与第二阀体42的紧密接触，第二弹簧44为压缩弹簧，第二导气通道49的第二底部71设有第二出气孔72，第二弹簧44的上端与第二阀芯43连接，第二弹簧44的下端与第二底部71连接，第二弹簧44弹性作用力的方向与第二单向阀7打开的方向相反，第二阀芯43打开的方向朝下，第二弹簧44作用于第二阀芯43的弹力方向朝上。
为了实施第一单向阀6的第一阀芯39的关闭以及开通，以及保证压缩空气的导通以及隔断，第一驱动盘41与第一阀体38的上端之间留有第一限位间隔73，用于控制第一阀芯39的行程；第一驱动盘41设有第一上凹槽51以及第一下凹槽74，第一下凹槽74的第一槽壁75设有第一槽孔76，用于第一下凹槽74与第一阀体38的上端接触时，保持压缩空气能由第一槽孔76进入第一导气通道33；第一驱动盘41、第一导套56、第一导柱58以及第一阀芯39的轴线相同；第一阀体38设有第一驱动槽90，第一驱动盘41与第一驱动槽90动配合连接，第一驱动盘41与第一驱动槽90之间留有间隙。
为了实施第二单向阀7的第二阀芯43的关闭以及开通，以及保证压缩空气的导通以及隔断，第二驱动盘45与第二阀体42的上端之间留有第二限位间隔77，用于控制第二阀芯43的行程；第二驱动盘45设有第二上凹槽78以及第二下凹槽79，第二下凹槽78的第二槽壁80设有第二槽孔81，用于第二下凹槽78与第二阀体42的上端接触时，保持压缩空气能由第二槽孔81进入第二导气通道49；第二驱动盘45、第二导套63、第二导柱50以及第二阀芯43的轴线相同；第二阀体42设有第二驱动槽91，第 二驱动盘45与第二驱动槽91动配合连接，第二驱动盘45与第二驱动槽91之间留有间隙。第一阀体38、第一阀芯39、第二阀体42以及第二阀芯43由橡胶构成。
防爆胎的单向阀的使用方法是：外胎2充压达到设定的压力后，外胎2内的压缩空气作用于第一单向阀6的第一驱动盘41，使第一阀芯39受到的驱动力大于第一弹簧40施加于第一阀芯39的弹力，使第一阀芯39向打开第一单向阀6的方向移动，第一阀芯39克服第一弹簧40的弹力打开第一单向阀6，使第一阀芯39与第一导气通道33出现导气间隙；第一单向阀6打开后，外胎2内的压缩空气由第一单向阀6的第一进气口34进入，外胎2的压缩空气经第一阀芯39与第一导气通道33之间导气间隙进入，由第一导气通道33的第一出气口46进入到第一内胎4内；当第一内胎4的压力达到设定的压力后，第一内胎4内的压缩空气作用于第二单向阀7的第二驱动盘45，使第二阀芯43受到的驱动力大于第二弹簧44施加于第二阀芯43的弹力，使第二阀芯43向打开第二单向阀7的方向移动，第二阀芯43克服第二弹簧44的弹力打开第二单向阀7，使第二阀芯43与第二导气通道49出现导气间隙；第二单向阀7打开后，第一内胎4内的压缩空气由第二单向阀7的第二进气口52进入，压缩空气经第二阀芯43与第二导气通道49之间导气间隙进入，由第二导气通道49的第二出气口53进入到第二内胎5；当第二内胎5的压力达到设定的压力后，第二阀芯43在第二弹簧44弹力的作用下关闭第二单向阀7；第二单向阀7关闭后，第一单向阀6在第一弹簧40弹力的作用下关闭；当外胎2被利器扎穿失压时，第一单向阀6关闭，第一内胎4维持在充压状态，第一内胎4通过第一外支撑柱17与外胎2接触，第一内胎4通过第一内支撑柱18与轮圈1接触，防爆胎通过第一内胎4支撑机动车，避免或者减少偏胎事故的发生；当外胎2、第一内胎4被利器扎穿失压时，第二内胎5维持在充压状态，第二内胎5的第二外支撑柱19与第一内胎4的第一外支撑柱17连接，第一外支撑柱17与外胎2连接；第二内胎5的第二内支撑柱20与第一内胎4的第一内支撑柱18连接，第一内支撑柱18与轮圈1连接，防爆胎通过第二内胎5支撑机动车，避免或者减少偏胎事故的发生。
外胎2充气后，压缩空气由外胎2经第一导套56的第一导孔57进入，压缩空气经第一阀芯39的第一环形上凸弧面61与第一阀体38的第 一环形上凹弧面59之间的导气间隔，以及经过第一阀芯39的第一环形下凸弧面62与第一阀体38的第一环形下凹弧面60导气间隔，再由第一导气通道33的第一出气孔70进入第一内胎4。
外胎2充气时，第一内胎4充气后，压缩空气由第一内胎4经第二导套63的第二导孔64进入，经第二阀芯43的第二环形上凸弧面67与第二阀体42的第二环形上凹弧面65的导气间隔，以及经第二阀芯43的第二环形下凸弧面68与第二阀体42的第二环形下凹弧面66的导气间隔，再由第二导气通道49的第二出气孔72进入第二内胎5。
为了调节第一弹簧40弹力，控制第一单向阀6在设定的压力条件下打开，第一单向阀6的第一导气通道33的第一底部69设有第一螺栓孔82，第一螺栓孔82设有第一螺栓83，第一螺栓83通过螺纹与第一螺栓孔82连接；第一弹簧40的上端与第一阀芯39接触，第一弹簧40的下端与第一螺栓83的第一弹簧座板84接触，第一弹簧座板84位于第一导气通道33内；第一螺栓83固定连接有第一定位板85，第一定位板85通过第一定位螺丝86与第一阀体38固定连接。
第一单向阀6调节时，将第一单向阀6的第一进气口34与压力装置的接口封闭连接，将压力装置的压力调节到设定的压力范围，通过第一螺栓83调节第一弹簧40的弹力，使第一单向阀6在设定压力条件下导通，然后利用第一定位板85将第一定位螺丝86与第一阀体38固定连接。
为了调节第二弹簧44弹力，控制第二单向阀7在设定的压力条件下打开，第二单向阀7的第二导气通道49的第二底部71设有第二螺栓孔87，第二螺栓孔87设有第二螺栓88，第二螺栓88通过螺纹与第二螺栓孔87连接；第二弹簧44的上端与第二阀芯43接触，第二弹簧44的下端与第二螺栓88的第二弹簧座板89接触，第二弹簧座板89位于第二导气通道49内；第二螺栓88固定连接有第二定位板35，第二定位板35通过第二定位螺丝36与第二阀体42固定连接。
第二单向阀7调节时，将第二单向阀7的第二进气口52与压力装置的接口封闭连接，将压力装置的压力调节到设定的压力范围，通过第二螺栓88调节第二弹簧44的弹力，使第二单向阀7在设定压力条件下导通，然后利用第二定位板35将第二定位螺丝36与第二阀体42固定连接。
为了控制第一阀芯39的行程，第一单向阀6的第一下凹槽74的下 端到第一阀体38上端之间的第一限位间隔73与第一阀芯39移动的行程相等；当第一阀芯39向下移动时，第一下凹槽74的下端接触到第一阀体38的上端时，第一阀芯39停止向下移动。
为了控制第二阀芯43的行程，第二单向阀7的第二下凹槽78的下端到第二阀体42上端之间的第二限位间隔77与第二阀芯43移动的行程相等；当第二阀芯43向下移动时，第二下凹槽78的下端接触到第二阀体42的上端时，第二阀芯43停止向下移动。

Claims (8)

  1. 防爆胎的单向阀，防爆胎包括有轮圈(1)、外胎(2)、内胎(3)以及单向阀(37)，防爆胎的单向阀(37)包括有第一单向阀(6)以及第二单向阀(7)，外胎(2)与轮圈(1)连接，内胎(3)位于外胎(2)内；内胎(3)包括有第一内胎(4)以及第二内胎(5)，第一单向阀(6)设于第一内胎(4)，第一单向阀(6)与第一内胎(4)密封连接，第二单向阀(7)设于第二内胎(5)，第二单向阀(7)与第二内胎(5)密封连接；第一单向阀(6)的第一进气口(8)位于外胎(2)的外胎型腔(9)内，第一单向阀(6)的第一出气口(10)位于第一内胎(4)的第一型腔(11)内；第二单向阀(7)的第二进气口(12)位于第一内胎(4)的第一型腔(11)内，第二单向阀(7)的第二出气口(13)位于第二内胎(5)的第二型腔(14)内；其特征在于：所述的防爆胎的第一单向阀(6)包括有第一阀体(38)、第一阀芯(39)、第一弹簧(40)以及第一驱动盘(41)，第二单向阀(7)包括有第二阀体(42)、第二阀芯(43)、第二弹簧(44)以及第二驱动盘(45)；第一阀体(38)与第一内胎(4)密封连接，第二阀体(42)与第二内胎(5)密封连接；第一阀体(38)设有第一导气通道(33)，第一阀芯(39)与第一导气通道(33)动配合连接，第一阀芯(39)的初始状态是：第一阀芯(39)与第一导气通道(33)密封连接，第一弹簧(40)处于被压缩状态；第一导气通道(33)的第一进气口(34)位于外胎(2)内，第一导气通道(33)的第一出气口(46)位于第一内胎(4)内，第一阀芯(39)的第一上端(47)与第一驱动盘(41)连接，第一驱动盘(41)位于第一导气通道(33)的第一进气口(34)的上方，第一驱动盘(41)位于外胎(2)内，第一弹簧(40)位于第一导气通道(33)内，第一弹簧(40)与第一阀芯(39)的第一下端(48)连接；第二阀体(42)设有第二导气通道(49)，第二阀芯(43)与第二导气通道(49)动配合连接；第二阀芯(43)的初始状态是：第二阀芯(43)与第二导气通道(49)密封连接，第二弹簧(44)处于被压缩状态；第二导气通道(49)的第二进气口(52)位于第一内胎(4)内，第二导气通道(49)的第二出气口(53)位于第二内胎(5)内，第二阀芯(43)的第二上端(54)与第二驱动盘(45)连接，第二驱动盘(45)位于第二导气通道(49)的第二进气口(52)的上方，第二驱动盘(45)位于第一内胎(4)内，第二弹簧(44)位于第二导气通道(49)内，第二弹簧(44)与第二阀芯 (43)的第二下端(55)连接；第一单向阀(6)的第一阀体(38)设有第一导套(56)，第一导套(56)设有第一导孔(57)，第一导套(56)设于第一导气通道(33)的第一进气口(34)上，第一驱动盘(41)设有第一导柱(58)，第一驱动盘(41)通过第一导柱(58)与第一阀芯(39)连接，第一导柱(58)与第一导套(56)动配合连接；第一阀体(38)设有第一环形上凹弧面(59)以及第一环形下凹弧面(60)，第一阀芯(39)设有第一环形上凸弧面(61)以及第一环形下凸弧面(62)；第一阀芯(39)的第一环形上凸弧面(61)与第一阀体(38)的第一环形上凹弧面(59)动配合连接，第一环形上凸弧面(61)与第一环形上凹弧面(59)密封连接；第一阀芯(39)的第一环形下凸弧面(62)与第一阀体(38)的第一环形下凹弧面(60)动配合连接，第一环形下凸弧面(62)与第一环形下凹弧面(60)密封连接。
  2. 根据权利要求1所述的防爆胎的单向阀，其特征在于：所述的第一环形上凹弧面(59)为圆球面，第一环形上凹弧面(59)的半径由下向上逐步变小；第一环形下凸弧面(62)为圆球面，第一环形下凸弧面(62)的半径由下向上逐步变小；第一环形下凹弧面(60)为圆球面，第一环形下凹弧面(60)的半径由下向上逐步变小；第一环形上凸弧面(61)为圆球面，第一环形上凸弧面(61)的半径由下向上逐步变小。
  3. 根据权利要求2所述的防爆胎的单向阀，其特征在于：所述的第二单向阀(7)的第二阀体(42)设有第二导套(63)，第二导套(63)设有第二导孔(64)，第二导套(63)设于第二导气通道(49)的第二进气口(52)上，第二驱动盘(45)设有第二导柱(50)，第二驱动盘(45)通过第二导柱(50)与第二阀芯(43)连接，第二导柱(50)与第二导套(63)动配合连接；第二阀体(42)设有第二环形上凹弧面(65)以及第二环形下凹弧面(66)，第二阀芯(43)设有第二环形上凸弧面(67)以及第二环形下凸弧面(68)；第二阀芯(43)的第二环形上凸弧面(67)与第二阀体(42)的第二环形上凹弧面(65)动配合连接，第二环形上凸弧面(67)与第二环形上凹弧面(65)密封连接；第二阀芯(43)的第二环形下凸弧面(68)与第二阀体(42)的第二环形下凹弧面(66)动配合连接，第二环形下凸弧面(68)与第二环形下凹弧面(66)密封连接。
  4. 根据权利要求3所述的防爆胎的单向阀，其特征在于：所述的第二 环形上凹弧面(65)为圆球面，第二环形上凹弧面(65)的半径由下向上逐步变小；第二环形上凸弧面(67)为圆球面，第二环形上凸弧面(67)的半径由下向上逐步变小；第二环形下凹弧面(66)为圆球面，第二环形下凹弧面(66)的半径由下向上逐步变小；第二环形下凸弧面(68)为圆球面，第二环形下凸弧面(68)的半径由下向上逐步变小。
  5. 根据权利要求4所述的防爆胎的单向阀，其特征在于：所述的第一弹簧(40)为压缩弹簧，第一导气通道(33)的第一底部(69)设有第一出气孔(70)，第一弹簧(40)的上端与第一阀芯(39)连接，第一弹簧(40)的下端与第一底部(69)连接，第一弹簧(40)弹性作用力的方向与第一单向阀(6)打开的方向相反，第一阀芯(39)打开的方向朝下，第一弹簧(40)作用于第一阀芯(39)的弹力方向朝上。
  6. 根据权利要求5所述的防爆胎的单向阀，其特征在于：所述的第二弹簧(44)为压缩弹簧，第二导气通道(49)的第二底部(71)设有第二出气孔(72)，第二弹簧(44)的上端与第二阀芯(43)连接，第二弹簧(44)的下端与第二底部(71)连接，第二弹簧(44)弹性作用力的方向与第二单向阀(7)打开的方向相反，第二阀芯(43)打开的方向朝下，第二弹簧(44)作用于第二阀芯(43)的弹力方向朝上。
  7. 根据权利要求6所述的防爆胎的单向阀，其特征在于：所述的第一驱动盘(41)与第一阀体(38)的上端之间留有第一限位间隔(73)，用于控制第一阀芯(39)的行程；第一驱动盘(41)设有第一上凹槽(51)以及第一下凹槽(74)，第一下凹槽(74)的第一槽壁(75)设有第一槽孔(76)，用于第一下凹槽(74)与第一阀体(38)的上端接触时，保持压缩空气能由第一槽孔(76)进入第一导气通道(33)；第一驱动盘(41)、第一导套(56)、第一导柱(58)以及第一阀芯(39)的轴线相同；第一阀体(38)设有第一驱动槽(90)，第一驱动盘(41)与第一驱动槽(90)动配合连接，第一驱动盘(41)与第一驱动槽(90)之间留有间隙。
  8. 根据权利要求7所述的防爆胎的单向阀，其特征在于：所述的第二驱动盘(45)与第二阀体(42)的上端之间留有第二限位间隔(77)，用于控制第二阀芯(43)的行程；第二驱动盘(45)设有第二上凹槽(78)以及第二下凹槽(79)，第二下凹槽(78)的第二槽壁(80)设有第二槽孔(81)，用于第二下凹槽(78)与第二阀体(42)的上端接触时，保持 压缩空气能由第二槽孔(81)进入第二导气通道(49)；第二驱动盘(45)、第二导套(63)、第二导柱(50)以及第二阀芯(43)的轴线相同；第二阀体(42)设有第二驱动槽(91)，第二驱动盘(45)与第二驱动槽(91)动配合连接，第二驱动盘(45)与第二驱动槽(91)之间留有间隙。
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