WO2020155526A1 - 断开式内胎和车胎 - Google Patents

断开式内胎和车胎 Download PDF

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Publication number
WO2020155526A1
WO2020155526A1 PCT/CN2019/092176 CN2019092176W WO2020155526A1 WO 2020155526 A1 WO2020155526 A1 WO 2020155526A1 CN 2019092176 W CN2019092176 W CN 2019092176W WO 2020155526 A1 WO2020155526 A1 WO 2020155526A1
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WO
WIPO (PCT)
Prior art keywords
inner tube
plug
sleeve
slot
carcass
Prior art date
Application number
PCT/CN2019/092176
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English (en)
French (fr)
Other versions
WO2020155526A9 (zh
Inventor
李瑞华
Original Assignee
厦门正新实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910098974.0A external-priority patent/CN109895559A/zh
Priority claimed from CN201920177242.6U external-priority patent/CN210101202U/zh
Priority claimed from CN201910099812.9A external-priority patent/CN109910505A/zh
Priority claimed from CN201920177074.0U external-priority patent/CN209904456U/zh
Application filed by 厦门正新实业有限公司 filed Critical 厦门正新实业有限公司
Priority to KR1020217004540A priority Critical patent/KR102465475B1/ko
Priority to EP19914082.3A priority patent/EP3919292B1/en
Publication of WO2020155526A1 publication Critical patent/WO2020155526A1/zh
Publication of WO2020155526A9 publication Critical patent/WO2020155526A9/zh
Priority to US17/344,279 priority patent/US20210300119A1/en

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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
    • B60C5/02—Inflatable pneumatic tyres or inner tubes having separate inflatable inserts, e.g. with inner tubes; Means for lubricating, venting, preventing relative movement between tyre and inner tube
    • B60C5/04—Shape or construction of inflatable inserts
    • 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
    • B60C5/10—Inflatable pneumatic tyres or inner tubes formed as a single discontinuous ring with contiguous ends which may be connected together

Definitions

  • the present invention relates to the field of tires, in particular to inner tubes.
  • the tire generally includes an inner tube and a tire.
  • the traditional inner tube is a continuous circle.
  • the inner tube needs to be completely removed from the tire, and then repaired or a new inner tube is inserted into the tire. Inside. In this process, it takes a long time to remove the inner tube or replace the inner tube, and the efficiency of replacing the inner tube is very low.
  • One of the traditional disconnected types is to provide a snap-fitting rubber piece at the ends of two joints, and the rubber piece itself is not inflated.
  • the snap fit is completely dependent on the shape of the rubber part itself.
  • the connection strength of this structure is very limited, and the inner tube is easily detached during driving.
  • the part where the two rubber parts are clamped is easy to form a gap, so that the air pressure in the gap is significantly lower than the air pressure inside the inner tube.
  • the main technical problem to be solved by the present invention is to provide a disconnected inner tube and tire, and the time for replacing the inner tube can be greatly shortened.
  • the present invention provides a split inner tube, including: a long inner tube carcass, both ends of which have a first closed surface and a second closed surface, and one end is along the inner tube carcass A sleeve extends in the length direction, and the first closed surface and the second closed surface are butt-connected by the sleeve to splice the elongated inner tube carcass into an inner tube connected end to end;
  • the first closed surface and the second closed surface expand in the radial direction and are constrained and embraced in the sleeve by the sleeve.
  • first closed surface and the second closed surface are plug-connected or abutted against each other in an uninflated state.
  • the elongated inner tube carcass is provided with a first joint and a second joint at both ends; the free ends of the first joint and the second joint respectively have the first closed surface and The second closed surface.
  • the inner tube carcass when the inner tube carcass is in an uninflated state, the first closed surface, the second closed surface and the inner wall of the sleeve are fitted or not fitted; the inner tube When the body is in an inflated state, the first closed surface, the second closed surface and the inner wall of the sleeve are in a fit fit.
  • the second closed surface is a slot, and the free end of the second joint extends out of the sleeve along the length direction of the inner tube carcass;
  • the first closed surface is a stepped plug, including a first plug and a second plug connected along the length of the inner tube carcass.
  • the first plug is inserted into the slot, the second plug is placed in the sleeve
  • the long strip carcass is spliced into an inner tube which is connected end to end.
  • the stepped plug has a first air cavity and a second air cavity communicating with each other; there is a third air cavity along the radial direction between the groove wall of the slot and the inner wall of the second connector.
  • the cavity; the first air cavity, the second air cavity, and the third air cavity are respectively communicated with the inflation cavity of the inner tube carcass.
  • the groove wall of the slot and the barrel wall of the sleeve are connected by a limit surface
  • the first plug and the second plug of the stepped plug are connected through a first limit mating surface, and the second plug and the side wall of the first connector are connected through a second limit mating surface;
  • the limit surface and the first limit mating surface abut the limit along the inserting direction, and the second limit mating surface and the end surface of the sleeve of the sleeve are inserted along the The connection direction reaches the limit.
  • the slot is an arc-shaped slot, and the slot, the limiting surface, and the sleeve wall are transitioned by an arc angle;
  • the first plug is correspondingly an arc-shaped plug, and the first plug, the first limit mating surface, the second plug, the second limit mating surface, and the side wall of the first connector are transitioned by an arc angle.
  • the first closed surface is a first plug, and the free end along which the first joint extends extends out of the sleeve along the length of the tube carcass, and the first plug is located in the sleeve In the barrel
  • the second closed surface includes a slot and a second plug, the slot is recessed at the end of the second plug; when the first plug is inserted into the slot, the second plug is placed in the sleeve
  • the long strip carcass is spliced into an inner tube which is connected end to end.
  • the first plug has a first air cavity, and a second air cavity is formed between the groove wall of the slot and the inner wall of the second plug along the radial direction; the first air cavity and the second air cavity The two air chambers are respectively communicated with the inflation chamber of the inner tube carcass.
  • the first plug and the barrel wall of the sleeve are connected by a limit surface.
  • the socket and the second plug are connected by a first limit mating surface, and the second plug and the side wall of the second connector are connected by a second limit mating surface;
  • the limit surface and the first limit mating surface abut the limit along the inserting direction, and the second limit mating surface and the end surface of the sleeve of the sleeve are inserted along the The connection direction reaches the limit.
  • the slot is an arc-shaped slot
  • the slot, the first limit mating surface, the second plug, the second limit mating surface, and the side wall of the first connector pass through a circle Arc transition
  • the first plug is correspondingly an arc-shaped plug, and a circular arc angle transitions between the first plug, the limiting surface and the sleeve barrel wall.
  • the thickness of the sidewall of the sleeve is 50%-70% of the thickness of the sidewall of the inner tube carcass.
  • the length of the sleeve is greater than the cross-sectional width of the inner tube carcass by 5-10 mm.
  • the cross section of the slot along the axial direction is an arc-shaped surface, and the ratio of the arc length to the cross-sectional circumference of the inner tube carcass is greater than the expansion ratio of the inner tube carcass after inflation.
  • the cross section of the slot along the axial direction is an arc-shaped surface, and the arc length is more than 120% of the cross-sectional circumference of the inner tube carcass.
  • the cross section of the slot along the axial direction is one or a combination of a circular arc surface, a tapered arc surface, and a long arc surface.
  • a vehicle tire includes an inner tube, an outer tire and a rim; it is characterized in that the inner tube is the split inner tube described in the foregoing embodiment.
  • a disconnected inner tube comprising: a long strip inner tube carcass, the two ends of which are respectively provided with a first joint and a second joint; the first joint and the second joint are free The ends respectively have a first closed surface and a second closed surface that can be plugged into each other, and one end of the sleeve extends along the length direction of the inner tube carcass;
  • the first closed surface and the second closed surface are spliced by sleeves to splice the elongated inner tube carcass into an inner tube connected end to end;
  • the first closed surface and the second closed surface expand in the radial direction and are constrained and embraced in the sleeve by the sleeve.
  • the second closed surface is a concave slot, including a limiting surface and a slot, and the free end of the second joint extends out of the sleeve along the length of the tube carcass;
  • the first closed surface is a stepped plug, including a first plug and a second plug connected along the length of the inner tube carcass;
  • the shape of the first plug matches that of the socket, and the second plug matches the sleeve; the corresponding first limit mating surface between the first plug and the second plug matches the limit surface of the concave slot match.
  • the stepped plug has a first air cavity and a second air cavity communicating with each other;
  • the limiting surface of the concave slot, the slot, and the inner wall of the second joint define an annular third air cavity; the first air cavity, the second air cavity, and the third air cavity are respectively inflated with the inner tube carcass Cavity connection
  • the stepped plug and the concave slot When inflating, under the air pressure of the first air cavity, the second air cavity, and the third air cavity, the stepped plug and the concave slot expand in the radial direction; the limit surface of the concave slot, the slot Stretched into a slightly concave arc surface, the first plug and the first limiting mating surface of the stepped plug are stretched into a slightly convex arc surface to form a slight arc-like close fit, and are limited by the sleeve to embrace and connect to the sleeve in.
  • the present invention provides an inner tube structure.
  • a joint of the inner tube is sleeved in the sleeve, so that the entire inner tube carcass forms a closed loop. Due to the guiding effect of the sleeve, the connection and disassembly of the two joints have obvious guiding properties, and the assembly and disassembly are very convenient. Due to the limit function of the sleeve, the joint is not easy to fall out of the sleeve even in a non-inflated state.
  • the present invention provides an inner tube structure.
  • the two joints are also inflated and expanded, and the sleeve itself will not be inflated, but will only be supported during the expansion of the joint due to its own material. open. Therefore, as the inflation process progresses, the holding force between the inner wall of the sleeve and the joint becomes greater. This ensures that the joint cannot fall out of the sleeve after inflation.
  • the present invention provides an inner tube structure. Since the joint expands after being inflated, the closed surfaces of the two joints are tightly attached after being inflated, and there is no gap between the joints, effectively avoiding the occurrence of turbulence.
  • the present invention provides an inner tube structure with an annular air cavity between the slot and the inner wall of the joint. During the inflation process, the annular air cavity expands and squeezes the groove, so that the groove and the plug are clamped tighter.
  • the present invention provides an inner tube structure.
  • the transition part adopts rounded corner design to effectively avoid the problem of stress concentration, and it can be used for a long time without puncture.
  • Figure 1 is a cross-sectional view of the first joint in the preferred embodiment 1 of the present invention.
  • 3 to 8 are diagrams showing examples of other shapes of the first joint and the second joint in the preferred embodiment 1 of the present invention.
  • Figure 9 is a cross-sectional view of the inner tube body in an uninflated state in the preferred embodiment 1 of the present invention.
  • Fig. 10 is a comparison diagram of the part of Fig. 9 after uninflation and after inflation, the dashed part after uninflation;
  • FIG. 11 is a cross-sectional view of the first joint in the preferred embodiment 2 of the present invention.
  • Figure 12 is a cross-sectional view of the second joint in the preferred embodiment 2 of the present invention.
  • FIGS 13-18 are diagrams showing examples of other shapes of the first joint and the second joint in the preferred embodiment 2 of the present invention.
  • Figures 19-21 are schematic diagrams of the connection of the first joint and the second joint in an uninflated state in the preferred embodiment 3 of the present invention.
  • This embodiment provides a split type inner tube, including: an elongated inner tube carcass, the two ends of which respectively have a first closed surface and a second closed surface, and one end extends along the length direction of the inner tube carcass.
  • a tube, the first closed surface and the second closed surface are butted by a sleeve to splice the elongated inner tube carcass into an inner tube connected end to end;
  • the first closed surface and the second closed surface expand in the radial direction and are constrained and embraced in the sleeve by the sleeve.
  • This kind of disconnected inner tube is very simple to install.
  • the inner tube carcass can be spliced to form a continuous inner tube, and then the inner tube carcass is inflated.
  • the first and second closed surfaces at both ends of the inner tube carcass expand in the radial direction, the first closed surface and the second closed surface are finally abutted together in the circumferential direction and along the radial direction.
  • the direction is limited by the sleeve clamp, so that the splicing strength of the inner tube is greatly strengthened, and it is not easy to loosen.
  • a disconnected inner tube includes: a long strip inner tube carcass, the two ends of which are respectively provided with a first joint 11 and a second joint 12; the first joint 11 and the second joint 12 The free ends of each have a first closed surface 111 and a second closed surface 121, and the free end of the second joint 12 also extends a sleeve 122 along the length of the inner tube carcass;
  • the first joint 11 and the second joint 12 are butted by a sleeve 112 to splice the elongated inner tube carcass into an inner tube connected end to end.
  • first closed surface 111 and the second closed surface 121 are in a plug-in connection relationship in an uninflated state.
  • the first closed surface 111 and the second closed surface 121 directly abut and have no insertion relationship.
  • the second closed surface 121 is the slot 1211, and the corresponding first closed surface 111 is along the inner tube carcass.
  • the stepped plug connected in the lengthwise direction includes a first plug 1111 and a second plug 1112. When the first plug 1112 is inserted into the slot 1211, the second plug 1112 is placed in the sleeve 122 and the strip The carcass of the shaped inner tube is inserted into the inner tube end to end.
  • the first plug 1111 and the second plug 1112 have a first air cavity 1113 and a second air cavity 1114 that are connected to each other.
  • the groove wall of the slot 1211 and the inner wall of the second connector 12 extend along the radial direction.
  • the first plug 1111 and the slot 1211 abut each other tightly after expansion.
  • the second plug 1112 After the second plug 1112 expands, it fits tightly with the inner wall of the sleeve 122. Since the sleeve 122 does not actively expand during the inflation process, as the second plug 1112 expands at any time, the sleeve connects the second plug 1112 with the first plug 1112. The plug 1111 is embraced in the sleeve 122. The existence of the third air cavity 123 allows the slot 1211 along the upper and lower sides of the radial direction to squeeze the slot 12111211 during the expansion process, so that the slot 1211 and the first plug 1111 can be fully embraced. As shown in FIGS. 9 and 10, in the sleeve 122, the slot 1211 and the first plug 1111 form a slight arc tight fit.
  • the slot is a concave slot, including a slot 1211 and a limiting surface 124; the first plug 1111 and the second plug 1112 are connected by a first mating surface 1115, and the second plug 1112 It is connected with the side wall of the first joint 11 through a second limiting mating surface 1116;
  • the limit surface 124 and the first limit 1115 mating surface abut the limit along the mating direction
  • the second limit mating surface 1116 and the sleeve 122 The end surface of the wall abuts against the limit along the insertion direction.
  • the matching relationship between these two limit positions can provide clear hints for the insertion process, avoiding the user from inserting too shallow or too deep during the insertion process.
  • annular third air cavity 123 is defined between the slot 1211, the limiting surface 124, and the inner wall of the second joint 12; during inflation, the first air cavity 1113, the second air cavity 1114, and the third air cavity 123
  • both the stepped plug and the concave slot expand in the radial direction; the limiting surface 124 of the concave slot and the slot 1211 are stretched into a slightly concave arc surface, and the first plug of the stepped plug
  • the 1111 and the first limiting and matching surface 1115 are stretched into a slightly convex arc surface to form a slight arc-like close fit (see FIG. 10), and are limited and embraced in the sleeve by the sleeve.
  • the slot in order to reduce the problem of stress concentration, is an arc-shaped slot, and the slot, the limit surface 124, and the barrel wall of the sleeve 122 are transitioned by a circular arc angle; in this embodiment
  • the cross section of the slot along the axial direction is a conical arc surface.
  • the cross section of the slot along the axial direction can also be a circular arc surface or a long arc surface.
  • One or a combination of the above various arc sections As shown in Figure 3-8.
  • the first plug 1111 is correspondingly an arc-shaped plug.
  • the first plug 1111, the first limit mating surface 1115, the second plug 1112, the second limit mating surface 1116, and the side walls of the first connector 11 are also Transition through the arc angle.
  • the sidewall of the sleeve 122 is 50%-70% of the thickness of the sidewall of the inner tube carcass.
  • the thickness of the sidewall of the sleeve 122 and the thickness of the sidewall of the inner tube carcass are both the width in the uninflated state.
  • the purpose of this arrangement is that the sleeve 122 can be the same thickness as the sidewall of the inner tube carcass after the thickness of the second plug 1112 is superimposed, so as to avoid the bumpy feeling during driving caused by uneven thickness.
  • the length of the sleeve 122 is greater than the cross-sectional width of the inner tube carcass by 5-10 mm. This ensures that the sleeve 122 has a certain depth, so that the second plug 1112 is not easy to slip off the sleeve 122.
  • the cross section of the slot along the axial direction is an arc-shaped surface, and the ratio of the arc length to the cross-sectional circumference of the inner tube carcass is greater than the expansion ratio of the inner tube carcass after inflation.
  • the cross section of the slot along the axial direction is an arc-shaped surface, and the arc length is more than 120% of the cross-sectional circumference of the inner tube carcass.
  • the purpose of this arrangement is to make the slot have a certain length so that it is not easy to break after expansion and stretching.
  • the outer wall of the first plug 1111, the second plug 1112, and the inner wall of the sleeve 122 are frosted surfaces, which can increase the friction of the plug-in part.
  • the inner tube has convex points or patterns on the outer wall that increase friction, and the positions of the convex points and the patterns correspond to the holding position when the user inserts the inner tube.
  • This embodiment also provides a vehicle tire, including an inner tube, an outer tire, and a rim; the inner tube is the split inner tube as described above.
  • the time to replace the inner tube can be shortened from the traditional half an hour to five minutes, which greatly improves the efficiency of replacing the inner tube, and the tires using this kind of inner tube have no bumps during driving and are very comfortable . Because this kind of inner tube overcomes the problem of stress concentration, it is not prone to tyre bulging and puncture after driving for a long time.
  • the sleeve is arranged on one side of the plug.
  • the first closing surface 211 is the first plug, and the first joint is along The free end of the tube extends out of the sleeve 212 along the length of the inner tube carcass, and the first plug is located in the sleeve 212.
  • the second closing surface 221 includes: a slot 2211 and a second plug 2212, the slot 2211 is recessed at the end of the second plug 2212; when the first plug is inserted into the slot 2211, the first plug 2211 Two plugs 2212 are placed in the sleeve 212 to insert the elongated inner tube carcass into an inner tube connected end to end.
  • the first plug has a first air cavity, and there is a second air cavity between the groove wall of the slot 2211 and the inner wall of the second plug 2212 along the radial direction; the first air cavity and the second air cavity They are respectively connected with the inflation cavity of the inner tube carcass.
  • the first plug and the barrel wall of the sleeve 212 are connected by a limit surface 213.
  • the socket 2211 and the second plug 2212 are connected through a first limit mating surface 2213, and the second plug 2212 and the side wall of the second connector 22 are connected through a second limit mating surface 2214;
  • the limit surface 213 and the first limit mating surface 2213 abut the limit along the plugging direction, and the second limit mating surface 2214 and the sleeve 212 barrel
  • the end surface of the wall abuts against the limit along the insertion direction.
  • the slot 2211 is an arc-shaped slot.
  • the cross-section of the slot 2211 along the axial direction can also be one of a circular arc surface, an elongated arc surface, or the foregoing various types. Combination of curved sections. As shown in Figure 13-18.
  • the sidewalls of the slot 2211, the first limit mating surface 2213, the second plug 2212, the second limit mating surface 2214, and the second connector 22 transition through an arc angle
  • the first plug is correspondingly an arc-shaped plug, and a circular arc angle transitions between the first plug, the limiting surface 213 and the side wall of the sleeve 212.
  • the first plug and the socket, the second plug and the inner wall of the sleeve are in a fully fitted mating state in the uninflated state.
  • the first closed surface, the second closed surface, and the inner wall of the sleeve may also be non-fitting; as long as it is ensured that the inner tube carcass is in the inflated state, the first The closing surface, the second closing surface, and the inner wall of the sleeve may be in close fit.
  • the non-fitting means that the first closing surface, the second closing surface and the inner wall of the sleeve are completely separated or partially fitted. That is, the shapes of the sockets and plugs that are inserted into each other are not exactly the same, as shown in Figures 19, 20, and 21.
  • the first joint and the second joint are both in the insertion state of the groove and the joint.
  • it can also be changed to two joints abutting, as long as one of the joints is inserted into the other. Only one connector sleeve is enough.
  • the present invention provides an inner tube structure.
  • a joint of the inner tube is sleeved in the sleeve, so that the entire inner tube carcass forms a closed loop. Due to the guiding effect of the sleeve, the connection and disassembly of the two joints have obvious guiding properties, and the assembly and disassembly are very convenient. Due to the limit function of the sleeve, the joint is not easy to fall out of the sleeve even in a non-inflated state. It has a wide range of applications and good industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

一种断开式内胎，其两端分别设置有第一接头（11，21）、第二接头（12，22）；第一接头（11，21）和第二接头（12，22）的自由端分别具有第一封闭面（111，211）和第二封闭面（121，221），并且第一接头（11，21）或第二接头（12，22）的自由端还沿着内胎胎体的长度方向延伸出一套筒（122，212）；第一接头（11，21）和第二接头（12，22）通过套筒（122，212）对接将长条形胎体拼接为首尾相连的内胎。一种车胎，使用上述断开式内胎。

Description

断开式内胎和车胎 技术领域
本发明涉及轮胎领域，尤其涉及内胎。
背景技术
车胎一般包括内胎和外胎，传统的内胎为连续的圆形，当轮胎破损需要更换内胎或者修补内胎时，就需要将内胎从外胎中完整取下，再经过修补或者将一个新的内胎塞回轮胎内。这个过程中无论是拆卸内胎还是装回内胎都需要耗费很长的时间，更换内胎的效率很低。
为了克服这个问题，市面上出现了断开式内胎，这种内胎依靠两个接头对接形闭环，在放气状态可以很容易地解除两个接头的对接关系，使得内胎变为长条形，从而从外胎中抽出，这样就可以大大简化更换内胎所需的时间。但是尽管断开式内胎具有这么明显的优势，但是市面上依然没有形成稳定的市场占有率，就是因为这种内胎也具备了几个缺点：
1.传统的断开式有一种是在两个接头的末端设置相互卡接配合的橡胶件，这个橡胶件本身不被充气。完全依靠橡胶件自身的形状进行卡接配合。这种结构的连接强度很有限，内胎在行驶过程中很容易脱开。并且两个橡胶件卡接的部分很容易形成缝隙，这样缝隙部分的气压明显小于内胎内部的气压，行驶过程中，这部分一旦接触地面，胎体的形变就会增加，使得整个行驶过程中充满了颠簸感。
2.依靠卡接配合的连接关系在内胎未充气状态下很难保持在卡接的状态，这样当内胎装入外胎的过程中，很难保证内胎的连续性。
发明内容
本发明所要解决的主要技术问题是提供一种断开式内胎和车胎，更换内胎的时间可以大大缩短。
为了解决上述的问题，本发明提供了一种断开式内胎，包括：长条形内胎胎体，其两端分别具有第一封闭面和第二封闭面，并且其中一端沿着内胎胎体的长度方向延伸出一套筒，所述第一封闭面和第二封闭面通过套筒对接将所述长条形内胎胎体拼接为首尾相连的内胎；
所述内胎胎体在充气后，第一封闭面和第二封闭面沿着径向膨胀并被所述套筒限位抱接于套筒中。
在一较佳实施例中：所述第一封闭面和第二封闭面在未充气状态下为插接连接或者抵靠对接。
在一较佳实施例中：所述长条形内胎胎体得两端分别设置有第一接头、第二接头；所述第一接头和第二接头的自由端分别具有所述第一封闭面和第二封闭面。
在一较佳实施例中：所述内胎胎体在未充气状态下时，所述第一封闭面、第二封闭面以及套筒的内壁为贴合配合或不贴合配合；所述内胎胎体在充气状态下时，所述第一封闭面、第二封闭面以及套筒的内壁为贴合配合。
在一较佳实施例中：所述第二封闭面为插槽，并且第二接头的自由端沿着内胎胎体的长度方向延伸出所述套筒；
所述第一封闭面为阶梯插头，包括沿着内胎胎体的长度方向连接的第一插头和第二插头，当所述第一插头插入插槽中时，所述第二插头置于套筒中将所述长条形胎体拼接为首尾相连的内胎。
在一较佳实施例中：所述阶梯插头内具有相互连通的第一气腔和第二气腔；所述插槽的槽壁与第二接头的内壁之间沿着径向具有第三气腔；所述第一气腔、第二气腔、第三气腔分别与内胎胎体的充气腔连通。
在一较佳实施例中：所述插槽的槽壁与套筒的筒壁之间通过限位面连接；
所述阶梯插头的所述第一插头和第二插头之间通过第一限位配合面连接，第二插头与第一接头的侧壁之间通过第二限位配合面连接；
所述第一插头和插槽形成插接配合时，限位面和第一限位配合面沿着插接方向顶抵限位，第二限位配合面与套筒的筒壁端面沿着插接方向顶抵限位。
在一较佳实施例中：所述插槽为弧形槽，所述插槽、限位面、套筒筒壁之间通过圆弧角过渡；
所述第一插头相应为弧形插头，所述第一插头、第一限位配合面、第二插头、第二限位配合面、第一接头的侧壁之间通过圆弧角过渡。
在一较佳实施例中：所述第一封闭面为第一插头，并且第一接头沿着的自由端沿着内胎胎体的长度方向延伸出所述套筒，所述第一插头位 于套筒内；
所述第二封闭面包括插槽和第二插头，所述插槽凹设于第二插头的端部；当所述第一插头插入插槽中时，所述第二插头置于套筒中将所述长条形胎体拼接为首尾相连的内胎。
在一较佳实施例中：所述第一插头具有第一气腔，插槽的槽壁与第二插头的内壁之间沿着径向具有第二气腔；所述第一气腔、第二气腔分别与内胎胎体的充气腔连通。
在一较佳实施例中：所述第一插头与套筒的筒壁之间通过限位面连接。
在一较佳实施例中：所述插槽和第二插头之间通过第一限位配合面连接，第二插头与第二接头的侧壁之间通过第二限位配合面连接；
所述第一插头和插槽形成插接配合时，限位面和第一限位配合面沿着插接方向顶抵限位，第二限位配合面与套筒的筒壁端面沿着插接方向顶抵限位。
在一较佳实施例中：所述插槽为弧形槽，所述插槽、第一限位配合面、第二插头、第二限位配合面、第一接头的侧壁之间通过圆弧角过渡；
所述第一插头相应为弧形插头，所述第一插头、限位面、套筒筒壁之间通过圆弧角过渡。
在一较佳实施例中：所述套筒的侧壁厚度为内胎胎体侧壁厚度的50％-70％。
在一较佳实施例中：所述套筒的长度大于内胎胎体的截面宽度 5-10mm。
在一较佳实施例中：所述插槽沿着轴向的剖面为弧形面，其弧长与内胎胎体的截面周长的比值大于内胎胎体充气后的膨胀比。
在一较佳实施例中：所述插槽沿着轴向的剖面为弧形面，其弧长为内胎胎体的截面周长的120％以上。
在一较佳实施例中：所述插槽沿着轴向的剖面为圆弧面、锥形弧面、长条形弧面中的一种或组合。
一种车胎，包括内胎、外胎和轮辋；其特征在于所述内胎为前述实施例所述的断开式内胎。
本发明的又一技术方案：一种断开式内胎，包括：长条形内胎胎体，其两两端分别设置有第一接头、第二接头；所述第一接头和第二接头的自由端分别具有可以相互插接的第一封闭面和第二封闭面，并且其中一端沿着内胎胎体的长度方向延伸出一套筒；
所述第一封闭面和第二封闭面通过套筒插接将所述长条形内胎胎体拼接为首尾相连的内胎；
所述内胎胎体在充气后，第一封闭面和第二封闭面沿着径向膨胀并被所述套筒限位抱接于套筒中。
在一较佳实施例中：所述第二封闭面为内凹插槽，包括限位面、插槽，并且第二接头的自由端沿着内胎胎体的长度方向延伸出所述套筒；
所述第一封闭面为阶梯插头，包括沿着内胎胎体的长度连接的第一插头和第二插头；
所述第一插头的外形与插座的相匹配，所述第二插头与套筒相匹配；相应的第一插头与第二插头间的第一限位配合面与内凹插槽的限位面相匹配。
在一较佳实施例中：所述阶梯插头内具有相互连通的第一气腔和第二气腔；
所述内凹插槽的限位面、插槽、第二接头的内壁界定一环形第三气腔；所述第一气腔、第二气腔、第三气腔分别与内胎胎体的充气腔连通；
充气时，在第一气腔、第二气腔、第三气腔气压下，所述阶梯插头、内凹插槽均沿着径向膨胀；所述内凹插槽的限位面、插槽拉伸为微凹弧面，所述阶梯插头的第一插头及第一限位配合面拉伸为微凸弧面，形成微弧状紧密配合，并被所述套筒限位抱接于套筒中。
相较于现有技术，本发明的技术方案具备以下有益效果：
1.本发明提供了一种内胎结构，通过设置一个套筒，使得内胎的一个接头套接在套筒中，而使得整个内胎胎体形成一个闭环。由于套筒的导向作用，两个接头的接和拆都具有了很明显的导向性，装拆都很方便。由于套筒的限位作用，即使在不充气的状态下，接头也不容易从套筒中掉落。
2.本发明提供了一种内胎结构，在充气过程中，两个接头也随之充气膨胀，而套筒本身是不会充气的，只会因为自身材质的关系在接头的膨胀过程中被撑开。因此，随着充气过程的深入，套筒内壁和接头之间的抱紧力越来越大。这样就保证了在充气后，接头无法从套筒中掉落。
3.本发明提供了一种内胎结构，由于接头充气后膨胀，使得两个接头的封闭面在充气后紧紧贴合在一起，接头之间就没有缝隙，有效避免了颠簸的发生。
4.本发明提供了一种内胎结构，插槽与接头内壁之间具有一环形气腔，充气过程中环形气腔膨胀挤压凹槽，使得凹槽与插头之间抱夹得更紧。
5.本发明提供了一种内胎结构，过渡部分都采用圆角设计有效避免了应力集中得问题，可以长时间使用也不会爆胎。
附图说明
图1为本发明优选实施例1中第一接头的剖视图；
图2为本发明优选实施例1中第二接头的剖视图；
图3-图8为本发明优选实施例1中第一接头和第二接头为其他形状的示例图；
图9为本发明优选实施例1中内胎本体在未充气状态下的剖视图；
图10为图9的局部在未充气和充气后的对比图，虚线部分未充气后；
图11为本发明优选实施例2中第一接头的剖视图；
图12为本发明优选实施例2中第二接头的剖视图；
图13-图18为本发明优选实施例2中第一接头和第二接头为其他形状的示例图；
图19-图21为本发明优选实施例3中第一接头和第二接头在未充气 状态下的连接示意图。
具体实施方式
下文结合附图和具体实施方式对本发明做进一步说明。
本实施例提供了种断开式内胎，包括：长条形内胎胎体，其两端分别具有第一封闭面和第二封闭面，并且其中一端沿着内胎胎体的长度方向延伸出一套筒，所述第一封闭面和第二封闭面通过套筒对接将所述长条形内胎胎体拼接为首尾相连的内胎；
所述内胎胎体在充气后，第一封闭面和第二封闭面沿着径向膨胀并被所述套筒限位抱接于套筒中。
这种断开式内胎，在安装时非常简单，只要将内胎胎体没有设置套筒的一端伸入套筒中，即可将内胎胎体拼接形成连续的内胎，而后对内胎胎体充气的过程中，由于内胎胎体两端的第一封闭面和第二封闭面分别沿着径向膨胀，最终使得第一封闭面和第二封闭面沿着周向紧紧抵靠在一起，并且沿着径向被套筒抱夹限位，从而使得内胎的拼接强度得到了大大的加强，不易松脱。
由于第一封闭面和第二封闭面在充气后紧紧抵靠在一起，使得整个内胎没有出现空隙部分，各个部分的气压能够做到大致相同，这样在车胎的行驶过程中就不会颠簸感。
本实施例中为了实现这种断开式结构，提供了几种具体实施方式：
实施例1
参考图1和图2，一种断开式内胎，包括：长条形内胎胎体，其两端分别设置有第一接头11、第二接头12；所述第一接头11和第二接头12的自由端分别具有第一封闭面111和第二封闭面121，并且第二接头12自由端还沿着内胎胎体的长度方向延伸出一套筒122；
所述第一接头11和第二接头12通过套筒112对接将所述长条形内胎胎体拼接为首尾相连的内胎。
本实施例中，第一封闭面111和第二封闭面121在未充气状态下为对插式连接关系。
依据本发明的基本设计思路，也可以改为第一封闭面111和第二封闭面121直接抵接没有插入关系。
本实施例中：为了实现第一封闭面111和第二封闭面121的对插关系，所述第二封闭面121为插槽1211，相应的所述第一封闭面111为沿着内胎胎体的长度方向连接的阶梯插头，包括第一插头1111和第二插头1112，当所述第一插头1112插入插槽1211中时，所述第二插头1112置于套筒122中将所述长条形内胎胎体插接为首尾相连的内胎。
具体来说，所述第一插头1111、第二插头1112具有相互连通的第一气腔1113和第二气腔1114，插槽1211的槽壁与第二接头12的内壁之间沿着径向具有第三气腔123；所述第一气腔1113、第二气腔1114、第三气腔123分别与内胎胎体的充气腔连通。这样就可以保证内胎胎体在充气时，第一插头1111、第二插头1112和插槽1211都可以沿着径向发生 膨胀，第一插头1111和插槽1211膨胀后相互抵接紧密配合，第二插头1112膨胀后于套筒122的内壁紧密配合，由于套筒122在充气过程中并不会主动膨胀，因此随时随着第二插头1112的膨胀，套筒就将第二插头1112和第一插头1111抱接在套筒122中。而第三气腔123的存在使得插槽1211沿着径向的上下两侧在膨胀过程中对插槽12111211进行挤压，使得插槽1211和第一插头1111可以充分抱紧。如图9和10所示，在套筒122内，插槽1211和第一插头1111形成微弧状紧密配合。
更具体的，所述插槽为内凹插槽，包括插槽1211与限位面124；所述第一插头1111和第二插头1112之间通过第一位配合面1115连接，第二插头1112与第一接头11的侧壁之间通过第二限位配合面1116连接；
所述第一插头1111和插槽形成插接配合时，限位面124和第一限位1115配合面沿着插接方向顶抵限位，第二限位配合面1116与套筒122的筒壁端面沿着插接方向顶抵限位。这两个限位配合关系可以对插接过程提供明确的提示，避免用户在插接过程中插入过浅或者过深。
进一步：插槽1211、限位面124、第二接头12的内壁之间界定一环形第三气腔123；充气时，在第一气腔1113、第二气腔1114、第三气腔气123压下，所述阶梯插头、内凹插槽均沿着径向膨胀；所述内凹插槽的限位面124与插槽1211拉伸为微凹弧面，所述阶梯插头的第一插头1111与第一限位配合面1115拉伸为微凸弧面，形成微弧状紧密配合(参见图10)，并被所述套筒限位抱接于套筒中。
本实施例中，为了减小应力集中的问题，所述插槽为弧形槽，所述 插槽、限位面124、套筒122的筒壁之间通过圆弧角过渡；本实施例中，所述插槽沿着轴向的剖面为锥形弧面，作为本实施例中的简单替换，所述插槽沿着轴向的剖面还可以为圆弧面、长条形弧面中的一种或上述各种弧形截面的组合。如图3-图8所示。
所述第一插头1111相应为弧形插头，所述第一插头1111、第一限位配合面1115、第二插头1112、第二限位配合面1116、第一接头11的侧壁之间也通过圆弧角过渡。
本实施例中还有以下优选设计：所述套筒122的侧壁为内胎胎体侧壁厚度的50％-70％。这里套筒122的侧壁厚度和内胎胎体的侧壁厚度都是在未充气状态下的宽度。这样设置的目的是套筒122在叠加了第二插头1112的厚度后能够和内胎胎体的侧壁厚度相同，从而避免厚度不均带来的行驶中的颠簸感。
所述套筒122的长度大于内胎胎体的截面宽度5-10mm。这样是保证套筒122具有一定深度，使得第二插头1112不易从套筒122中松脱滑落。
所述插槽沿着轴向的剖面为弧形面，其弧长与内胎胎体的截面周长的比值大于内胎胎体充气后的膨胀比。
具体来说所述插槽沿着轴向的剖面为弧形面，其弧长为内胎胎体的截面周长的120％以上。这样设置的目的是使得插槽具备一定的长度，使其在膨胀拉伸后不容易破裂。
本实施例中，第一插头1111、第二插头1112的外壁以及套筒122的内壁分别为磨砂面，可以增加插接部分的摩擦力。同时所述内胎在外壁 上具有增大摩擦力的凸点或者花纹，凸点和花纹设置的位置对应用户插接内胎时的握持位置。
本实施例中还提供了一种车胎，包括内胎、外胎和轮辋；所述内胎为如上所述的断开式内胎。使用这种内胎后，可以将更换内胎的时间由传统的半小时缩短为五分钟，大大提升了更换内胎的效率，并且使用这种内胎的车胎在行驶过程中也没有颠簸感，舒适度很高。由于这种内胎克服了应力集中的问题，在长时间行驶后也不容易出现鼓胎和爆胎的情况。
实施例2
参考图11和图12，与实施例1中不同之处，本实施例中套筒设置在插头一侧，具体来说，所述第一封闭面211为第一插头，并且第一接头沿着的自由端沿着内胎胎体的长度方向延伸出所述套筒212，所述第一插头位于套筒212内。
所述第二封闭面221包括：插槽2211和第二插头2212，所述插槽2211凹设于第二插头2212的端部；当所述第一插头插入插槽2211中时，所述第二插头2212置于套筒212中将所述长条形内胎胎体插接为首尾相连的内胎。
同样的，所述第一插头具有第一气腔，插槽2211的槽壁与第二插头2212的内壁之间沿着径向具有第二气腔；所述第一气腔、第二气腔分别与内胎胎体的充气腔连通。
所述第一插头与套筒212的筒壁之间通过限位面213连接。所述插槽2211和第二插头2212之间通过第一限位配合面2213连接，第二插头2212与第二接头22的侧壁之间通过第二限位配合面2214连接；
所述第一插头和插槽1211形成插接配合时，限位面213和第一限位配合面2213沿着插接方向顶抵限位，第二限位配合面2214与套筒212的筒壁端面沿着插接方向顶抵限位。
所述插槽2211为弧形槽，作为本实施例中的简单替换，所述插槽2211沿着轴向的剖面还可以为圆弧面、长条形弧面中的一种或上述各种弧形截面的组合。如图13-图18所示。
所述插槽2211、第一限位配合面2213、第二插头2212、第二限位配合面2214、第二接头22的侧壁通过圆弧角过渡；
所述第一插头相应为弧形插头，所述第一插头、限位面213和套筒212的侧壁之间通过圆弧角过渡。
其余部分与实施例1相同，不再赘述。
实施例3
参考图19-图21，实施例1和2中，在未充气状态下第一插头和插槽、第二插头和套筒内壁都是完全贴合的配合状态。实际上，在未充气状态下，所述第一封闭面、第二封闭面以及套筒的内壁也可以为不贴合配合；只要保证所述内胎胎体在充气状态下时，所述第一封闭面、第二封闭面以及套筒的内壁为贴合配合就可以。
所述不贴合配合指的是所述第一封闭面、第二封闭面以及套筒的内壁为完全分离或者局部贴合配合。即：相互插接的插槽与插头的形状不完全相同，如图19、20、21所示。
实施例4
在上述实施例中，未充气状态下，第一接头和第二接头都是凹槽和接头对插的插接状态，其实，也可以改为两个接头对抵，只要保证其中一个接头插入另一个接头的套筒中即可。
以上仅为本发明的优选实施例，但本发明的范围不限于此，本领域的技术人员可以容易地想到本发明所公开的变化或技术范围。替代方案旨在涵盖在本发明的范围内。因此，本发明的保护范围应由权利要求的范围确定。
工业实用性
本发明提供了一种内胎结构，通过设置一个套筒，使得内胎的一个接头套接在套筒中，而使得整个内胎胎体形成一个闭环。由于套筒的导向作用，两个接头的接和拆都具有了很明显的导向性，装拆都很方便。由于套筒的限位作用，即使在不充气的状态下，接头也不容易从套筒中掉落。适用范围广，具有良好的工业实用性。

Claims (22)

  1. 一种断开式内胎，其特征在于包括：长条形内胎胎体，其两端分别具有第一封闭面和第二封闭面，并且其中一端沿着内胎胎体的长度方向延伸出一套筒，所述第一封闭面和第二封闭面通过套筒对接将所述长条形内胎胎体拼接为首尾相连的内胎；
    所述内胎胎体在充气后，第一封闭面和第二封闭面沿着径向膨胀并被所述套筒限位抱接于套筒中。
  2. 根据权利要求1所述的一种断开式内胎，其特征在于：所述第一封闭面和第二封闭面在未充气状态下为插接连接或者抵靠对接。
  3. 根据权利要求1所述的一种断开式内胎，其特征在于：所述长条形内胎胎体得两端分别设置有第一接头、第二接头；所述第一接头和第二接头的自由端分别具有所述第一封闭面和第二封闭面。
  4. 根据权利要求3所述的一种断开式内胎，其特征在于：所述内胎胎体在未充气状态下时，所述第一封闭面、第二封闭面以及套筒的内壁为贴合配合或不贴合配合；所述内胎胎体在充气状态下时，所述第一封闭面、第二封闭面以及套筒的内壁为贴合配合。
  5. 根据权利要求3所述的一种断开式内胎，其特征在于：所述第二封闭面为插槽，并且第二接头的自由端沿着内胎胎体的长度方向延伸出所述套筒；
    所述第一封闭面为阶梯插头，包括沿着内胎胎体的长度方向连接的第一插头和第二插头，当所述第一插头插入插槽中时，所述第二插头置 于套筒中将所述长条形胎体拼接为首尾相连的内胎。
  6. 根据权利要求5所述的一种断开式内胎，其特征在于：所述阶梯插头内具有相互连通的第一气腔和第二气腔；所述插槽的槽壁与第二接头的内壁之间沿着径向具有第三气腔；所述第一气腔、第二气腔、第三气腔分别与内胎胎体的充气腔连通。
  7. 根据权利要求5所述的一种断开式内胎，其特征在于：所述插槽的槽壁与套筒的筒壁之间通过限位面连接；
    所述阶梯插头的所述第一插头和第二插头之间通过第一限位配合面连接，第二插头与第一接头的侧壁之间通过第二限位配合面连接；
    所述第一插头和插槽形成插接配合时，限位面和第一限位配合面沿着插接方向顶抵限位，第二限位配合面与套筒的筒壁端面沿着插接方向顶抵限位。
  8. 根据权利要求7所述的一种断开式内胎，其特征在于：所述插槽为弧形槽，所述插槽、限位面、套筒筒壁之间通过圆弧角过渡；
    所述第一插头相应为弧形插头，所述第一插头、第一限位配合面、第二插头、第二限位配合面、第一接头的侧壁之间通过圆弧角过渡。
  9. 根据权利要求3所述的一种断开式内胎，其特征在于：所述第一封闭面为第一插头，并且第一接头沿着的自由端沿着内胎胎体的长度方向延伸出所述套筒，所述第一插头位于套筒内；
    所述第二封闭面包括插槽和第二插头，所述插槽凹设于第二插头的端部；当所述第一插头插入插槽中时，所述第二插头置于套筒中将所述 长条形胎体拼接为首尾相连的内胎。
  10. 根据权利要求9所述的一种断开式内胎，其特征在于：所述第一插头具有第一气腔，插槽的槽壁与第二插头的内壁之间沿着径向具有第二气腔；所述第一气腔、第二气腔分别与内胎胎体的充气腔连通。
  11. 根据权利要求10所述的一种断开式内胎，其特征在于：所述第一插头与套筒的筒壁之间通过限位面连接。
  12. 根据权利要求11所述的一种断开式内胎，其特征在于：所述插槽和第二插头之间通过第一限位配合面连接，第二插头与第二接头的侧壁之间通过第二限位配合面连接；
    所述第一插头和插槽形成插接配合时，限位面和第一限位配合面沿着插接方向顶抵限位，第二限位配合面与套筒的筒壁端面沿着插接方向顶抵限位。
  13. 根据权利要求12所述的一种断开式内胎，其特征在于：所述插槽为弧形槽，所述插槽、第一限位配合面、第二插头、第二限位配合面、第一接头的侧壁之间通过圆弧角过渡；
    所述第一插头相应为弧形插头，所述第一插头、限位面、套筒筒壁之间通过圆弧角过渡。
  14. 根据权利要求1-13中任一项所述的一种断开式内胎，其特征在于：所述套筒的侧壁厚度为内胎胎体侧壁厚度的50％-70％。
  15. 根据权利要求1-13中任一项所述的一种断开式内胎，其特征在于：所述套筒的长度大于内胎胎体的截面宽度5-10mm。
  16. 根据权利要求5-13中任一项所述的一种断开式内胎，其特征在于：所述插槽沿着轴向的剖面为弧形面，其弧长与内胎胎体的截面周长的比值大于内胎胎体充气后的膨胀比。
  17. 根据权利要求16所述的一种断开式内胎，其特征在于：所述插槽沿着轴向的剖面为弧形面，其弧长为内胎胎体的截面周长的120％以上。
  18. 根据权利要求17所述的一种断开式内胎，其特征在于：所述插槽沿着轴向的剖面为圆弧面、锥形弧面、长条形弧面中的一种或组合。
  19. 一种车胎，包括内胎、外胎和轮辋；其特征在于所述内胎为权利要求1-13或17-18中任一项所述的断开式内胎。
  20. 一种断开式内胎，其特征在于包括：长条形内胎胎体，其两两端分别设置有第一接头、第二接头；所述第一接头和第二接头的自由端分别具有可以相互插接的第一封闭面和第二封闭面，并且其中一端沿着内胎胎体的长度方向延伸出一套筒；
    所述第一封闭面和第二封闭面通过套筒插接将所述长条形内胎胎体拼接为首尾相连的内胎；
    所述内胎胎体在充气后，第一封闭面和第二封闭面沿着径向膨胀并被所述套筒限位抱接于套筒中。
  21. 根据权利要求20所述的一种断开式内胎，其特征在于：所述第二封闭面为内凹插槽，包括限位面、插槽，并且第二接头的自由端沿着内胎胎体的长度方向延伸出所述套筒；
    所述第一封闭面为阶梯插头，包括沿着内胎胎体的长度连接的第一 插头和第二插头；
    所述第一插头的外形与插座的相匹配，所述第二插头与套筒相匹配；相应的第一插头与第二插头间的第一限位配合面与内凹插槽的限位面相匹配。
  22. 根据权利要求21所述的一种断开式内胎，其特征在于：所述阶梯插头内具有相互连通的第一气腔和第二气腔；
    所述内凹插槽的限位面、插槽、第二接头的内壁界定一环形第三气腔；所述第一气腔、第二气腔、第三气腔分别与内胎胎体的充气腔连通；
    充气时，在第一气腔、第二气腔、第三气腔气压下，所述阶梯插头、内凹插槽均沿着径向膨胀；所述内凹插槽的限位面、插槽拉伸为微凹弧面，所述阶梯插头的第一插头及第一限位配合面拉伸为微凸弧面，形成微弧状紧密配合，并被所述套筒限位抱接于套筒中。
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