A gas pressure tube assembly

Abstract

The application provides a gas pressure pipe assembly for straddle-type monorail vehicles, which comprises a steel wire hose and a dismounting tool. A first end of the steel wire hose is provided with a first connecting part for connecting with a tire valve, and a second end of the steel wire hose is provided with a second connecting part for connecting with a gas pressure gauge. The first connecting part comprises a profiled dismounting piece with a profiled connecting part. The dismounting tool has a dismounting tube cavity for sleeving outside the steel wire hose, and a first end of the dismounting tool has a profiled connecting hole for profiled connecting with the profiled connecting part of the profiled dismounting piece. The steel wire hose of the gas pressure pipe assembly disclosed by the application can directly extend into the space between the wheel core and the rim of the running wheel under the action of the dismounting tool, and the replacement work of the steel wire hose can be performed without lowering the bogie, dismounting the running tire, the rim and the related accessories, so that the dismounting and maintenance time of the steel wire hose is effectively reduced, and the labor intensity of the operation and maintenance personnel is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of straddle-type monorail vehicles, and more particularly to a pneumatic pipe assembly. BACKGROUND

[0002] The straddle-type monorail vehicle of the urban rail transit system has the advantages of small noise, small turning radius, strong climbing ability, good terrain adaptability, and low cost compared with the subway, and has great application prospect.

[0003] Compared with the common subway, light rail and other steel wheel vehicles, the straddle-type monorail vehicle is quite different in structure and appearance. The vehicle runs astride the track beam, and the running wheels of the bogie are replaced by inflatable rubber tires instead of the traditional steel wheels of the track vehicle, and are designed as double tires. In order to ensure safety, each running wheel device end is also equipped with a set of tire pressure monitoring device composed of a slip ring, a pressure gauge and a pneumatic pipe. The air pressure of the running tire is transmitted to the pressure gauge (pressure switch with electrical contacts inside) through the pneumatic pipe. The circuit of the pressure switch is connected in parallel, and is connected to the display provided on the vehicle body through the slip ring by the wire. When the running tire pressure is normal, the pressure switch in the pressure gauge is in an open state, and no tire deflation is displayed. When the running tire pressure is lower than the specified pressure (750kPa), the pressure switch is in a closed state, and the tire puncture signal will be displayed on the display in the driver's room, prompting the driver to take appropriate emergency measures to prevent the failure from expanding and the danger from occurring. At the same time, since the running tire is a double tire structure, the inner tire valve core near the driving shaft is far away from the outer tire valve core, and the pneumatic pipe is also needed to connect the inner tire valve of the running wheel to the outside of the wheel for easy inflation and deflation.

[0004] In the prior art, the pneumatic pipe is generally a hose, one end of which is connected with the tire valve of the running wheel, and the other end is used to be connected with the air pressure gauge. The pneumatic pipe is installed in the rim. When the pneumatic pipe and the tire valve are disassembled, since it is a hose, it cannot transmit torque, so when replacing the pneumatic pipe, the bogie must be lowered, and the running tire, the rim and related accessories must be disassembled, so that the replacement work of the pneumatic pipe can be carried out, which makes the maintenance time long and the labor intensity large.

[0005] In order to complete the replacement of the pneumatic pipe without lowering the bogie, the prior art has a pneumatic pipe, which includes a long pneumatic pipe and a short pneumatic pipe. The long pneumatic pipe is a rigid pipe that can transmit torque, and the short pneumatic pipe is installed on the outside of the running wheel and can be directly disassembled. The long pneumatic pipe is installed in the rim and is used to connect the inner running wheel. When replacing, by rotating the end of the long pneumatic pipe close to the short pneumatic pipe, the disassembly and assembly of the long pneumatic pipe from the tire valve can be completed. However, since the pneumatic pipe needs to be divided into two parts, there are more connection parts, which are prone to leakage risk, and the rigid pipe cannot deform with the environment, so it cannot avoid the surrounding components.

[0006] Therefore, how to reduce the disassembly and maintenance time of the air pressure pipe and reduce the labor intensity of the operation and maintenance personnel under the premise of adopting the hose becomes a technical problem to be solved by the person skilled in the art. SUMMARY

[0007] Therefore, how to reduce the disassembly and maintenance time of the air pressure pipe and reduce the labor intensity of the operation and maintenance personnel under the premise of adopting the hose becomes a technical problem to be solved by the person skilled in the art.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0009] An air pressure pipe assembly for a straddle-type monorail vehicle, comprising:

[0010] A steel wire hose, a first end of the steel wire hose is provided with a first connecting part for connecting with a tire valve, a second end of the steel wire hose is provided with a second connecting part for connecting with an air pressure gauge, the first connecting part comprises a profile dismounting part having a profile connecting part, the profile dismounting part has a dismounting threaded hole in communication with a lumen of the steel wire hose, and the dismounting threaded hole is used for threadedly cooperating with the tire valve;

[0011] A dismounting tool having a dismounting lumen for sleeving outside the steel wire hose, and a first end of the dismounting tool has a profile connecting hole for profile connecting with the profile connecting part of the profile dismounting part.

[0012] Preferably, in the above-mentioned air pressure pipe assembly, the first connecting part comprises:

[0013] A first inserting part inserted into the first end of the steel wire hose and having a first inserting part lumen in communication with the steel wire hose;

[0014] The profile dismounting part is rotatably and sealingly arranged on the first inserting part, and the dismounting threaded hole is in communication with the first inserting part lumen;

[0015] A pressure connecting part arranged on the first inserting part and used for opening a first valve core of the tire valve.

[0016] Preferably, in the above-mentioned air pressure pipe assembly, one end of the first inserting part is an inserting part inserted into the first end of the steel wire hose, and the other end is a limiting part;

[0017] An outer peripheral surface of the inserting part has an annular clamping tooth clamping matched with an inner wall of the steel wire hose, an outer diameter of the limiting part is greater than a maximum outer diameter of the inserting part, and is not greater than a minimum diameter of the dismounting threaded hole;

[0018] The profile dismounting part is provided with a limiting step near one end of the steel wire hose, a center hole of the limiting step is smaller than an outer diameter of the limiting part and larger than a maximum outer diameter of the inserting part.

[0019] Preferably, in the above-mentioned air pressure pipe assembly, an end face of the limiting part away from one end of the inserting part is provided with a sealing ring fixing groove, a sealing ring is embedded in the sealing ring fixing groove, an outer peripheral surface of the sealing ring is fitted with the dismounting threaded hole, and an end face of the sealing ring is used to be fitted with an end face of the tire valve.

[0020] Preferably, in the above-mentioned air pressure pipe assembly, a profile connecting part of the profile dismounting part is an external hexagonal structure.

[0021] Preferably, in the above-mentioned air pressure pipe assembly, the second connecting part is used to communicate with the air pressure gauge through a plug-in assembly, the plug-in assembly comprises:

[0022] A three-way joint is provided with an air pressure pipe interface, an air pressure gauge interface and an exhaust interface, the air pressure gauge interface is used to be connected with the air pressure gauge;

[0023] A joint plug-in part, two ends of the joint plug-in part are respectively used to communicate with the second connecting part and the air pressure pipe interface.

[0024] Preferably, in the above-mentioned air pressure pipe assembly, a second valve core is arranged in the air pressure gauge interface.

[0025] Preferably, in the above-mentioned air pressure pipe assembly, the second connecting part comprises:

[0026] A second inserting part is inserted into a second end of the steel wire hose and has a second inserting part lumen in communication with the steel wire hose;

[0027] A connecting part is exposed to the steel wire hose and connected with the joint plug-in part.

[0028] Preferably, in the above-mentioned air pressure pipe assembly, the joint plug-in part is a bolt provided with an internal threaded connection hole, and the connecting part has an external thread in threaded cooperation with the internal threaded connection hole;

[0029] The joint plug-in part is provided with an external thread cooperation part used to be in threaded cooperation with the air pressure pipe interface.

[0030] Preferably, in the above-mentioned air pressure pipe assembly, a second end of the dismounting tool is provided with an anti-skid dismounting part used for dismounting.

[0031] The application provides a kind of gas pressure pipe assembly, for straddle-type monorail vehicle, the gas pressure pipe assembly includes steel wire hose and dismounting tool.The first end of steel wire hose is provided with first connecting part for connecting with tire valve, the second end of steel wire hose is provided with second connecting part for connecting with air pressure gauge, first connecting part includes profile dismounting piece with profile connecting part.Profile dismounting piece has dismounting screw hole in communication with the lumen of steel wire hose, and the dismounting screw hole is used to screw with tire valve.The dismounting tool has dismounting lumen for sleeving outside steel wire hose, and the first end of the dismounting tool has profile connecting hole for profile connecting with the profile connecting part of profile dismounting piece.

[0032] When dismounting or installing steel wire hose, first install steel wire hose in dismounting lumen, and profile connecting part of profile dismounting piece is profile connected with profile connecting hole of dismounting tool, then by applying tightening force or loosening force to dismounting tool, the dismounting of steel wire hose can be realized.Compared with prior art, when replacing gas pressure pipe with hose, bogie must be lowered, running tire, rim and related accessories must be dismounted, the steel wire hose of gas pressure pipe assembly provided by the application can directly extend into the space between wheel core and rim of running wheel under the action of dismounting tool, without lowering bogie, dismounting running tire, rim and related accessories, the replacement work of steel wire hose can be carried out, and the steel wire hose can be arranged close to the wheel core of running wheel, which is simple and practical, effectively reduces the dismounting and maintenance time of steel wire hose, and reduces the labor intensity of operation and maintenance personnel, saves time and effort. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 The installation structure schematic diagram of steel wire hose and running wheel assembly provided by the embodiment of the application;

[0035] Figure 2 The installation structure schematic diagram of steel wire hose and plug-in assembly provided by the embodiment of the application;

[0036] Figure 3 The structure schematic diagram of gas pressure pipe assembly provided by the embodiment of the application;

[0037] Figure 4 The local structure schematic diagram of first connecting piece provided by the embodiment of the application.

[0038] Wherein, 1 is a tire valve, 2 is a steel wire hose, 3 is a joint plug, 4 is a tee joint, 5 is a first pipe clamp, 6 is a first gasket, 7 is a second gasket, 8 is a first bolt, 9 is a first nut, 10 is a third gasket, 11 is a second pipe clamp, 12 is a bracket, 13 is a fourth gasket, 14 is a lock wire, 15 is a second bolt, 16 is a third bolt, 17 is a running wheel assembly, 18 is a dismounting tool;

[0039] 210 is a first connecting part, 211 is a first plug, 212 is a profile dismounting part, 213 is a sealing ring, 214 is a pressure joint, 220 is a second connecting part, 221 is a connecting part, 222 is a second plug;

[0040] 401 is a gas pressure pipe interface, 402 is an exhaust interface, 403 is a gas pressure gauge interface. DETAILED DESCRIPTION

[0041] The core of the present application is to disclose a gas pressure pipe assembly to reduce the dismounting and repairing time of the gas pressure pipe and reduce the labor intensity of the operation and maintenance personnel.

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] The present application discloses the following gas pressure pipe assembly.

[0044] In combination with Figure 3 , the embodiment of the present application discloses a gas pressure pipe assembly for straddle-type monorail vehicles, which comprises a steel wire hose 2 and a dismounting tool 18.

[0045] The first end of the steel wire hose 2 is provided with a first connecting part 210 for connecting with a tire valve 1, and the second end of the steel wire hose 2 is provided with a second connecting part 220 for connecting with a gas pressure gauge. The first connecting part 210 comprises a profile dismounting part with a profile connecting part.

[0046] When the first connecting part 210 is arranged at the first end of the steel wire hose 2 or the first connecting part 210 is connected with the tire valve 1, the profile connecting part can be used as a force fitting surface matched with a wrench. The profile dismounting part 212 has a dismounting threaded hole communicated with the tube cavity of the steel wire hose 2, and the dismounting threaded hole is used for being screwed with the tire valve 1. Since the steel wire hose 2 is a hose, it can be deformed to adapt to the surrounding environment, so that it can be arranged in close contact with the wheel core of the running wheel and avoids other components on the running wheel assembly 17.

[0047] The dismounting tool 18 has a dismounting tube cavity for being sleeved outside the steel wire hose 2, and a first end of the dismounting tool has a profile connecting hole for being profile connected with the profile connecting part of the profile dismounting part.

[0048] In combination Figure 1 , the wheel core and the rim have a space for allowing the dismounting tool 18 to be used for mounting the steel wire hose 2. When the steel wire hose 2 is mounted to the tire valve 1, the steel wire hose 2 is first mounted to the dismounting tube cavity, and the profile connecting part of the profile dismounting part 212 is profile connected with the profile connecting hole of the dismounting tool 18, then the first end of the steel wire hose 2 is extended to the tire valve 1 from the outside of the running wheel assembly 17, and the steel wire hose 2 is connected with the tire valve 1 by rotating the dismounting tool 18, and then the dismounting tool 18 is removed.

[0049] When overhauling, the dismounting tool 18 is mounted to the steel wire hose 2 from the outside of the running wheel assembly 17, and the dismounting tool 18 is rotated to drive the steel wire hose 2 to rotate, so that the steel wire hose 2 is separated from the tire valve 1. Specifically, the profile connecting part can be an external hex structure, and the profile connecting hole can be an internal hex structure matched with the profile connecting part.

[0050] As understood by those skilled in the art, as long as the outer surface of the profile connecting part is a non-circular cross section, it can be driven to rotate under the action of the dismounting tool 18. The external hex structure is only one common profile structure form, but not the only structure form.

[0051] Compared with the prior art, the air pressure pipe of the hose must be lowered to the bogie when being replaced, and the running wheel tire, the rim and the related accessories must be disassembled before the replacement work of the air pressure pipe is performed. The steel wire hose of the air pressure pipe assembly disclosed in the embodiment of the present application can be directly extended into the space between the wheel core and the rim of the running wheel under the action of the dismounting tool, and the replacement work of the steel wire hose 2 can be performed without lowering the bogie, disassembling the running wheel tire, the rim and the related accessories. The steel wire hose 2 can be arranged in close contact with the wheel core of the running wheel, the structure is simple and practical, the dismounting and maintenance time of the steel wire hose 2 is effectively reduced, and the labor intensity of the operation and maintenance personnel is reduced, time and labor are saved.

[0052] In order to better connect the steel wire hose 2 and the tire valve 1, in combination with Figure 3 and Figure 4 , the first connecting part 210 comprises a first plug-in part 211, a profile dismounting part 212 and a pressure connecting part 214.

[0053] The first plug-in part 211 is plugged into the first end of the steel wire hose 2 and has a first plug-in part cavity communicating with the steel wire hose 2. When monitoring the tire pressure, the cavity of the first plug-in part 211 communicates with the cavity of the steel wire hose 2.

[0054] The profile dismounting part 212 is rotatably sealed on the first plug-in part 211 and has a dismounting screw hole communicating with the first plug-in part cavity.

[0055] The pressure connecting part 214 is arranged on the first plug-in part 211 and is used to open the first valve core of the tire valve 1. When the first connecting part 210 is connected with the tire valve 1, the pressure connecting part 214 opens the first valve core in the tire valve 1, so that the tire valve 1 communicates with the dismounting screw hole. Since the dismounting screw hole communicates with the first plug-in part cavity, the first plug-in part cavity communicates with the cavity of the steel wire hose 2. The second end of the steel wire hose 2 is provided with a second connecting part 220 for connecting with a pressure gauge, so that the monitoring of the tire pressure can be realized. When the steel wire hose 2 is dismounted, the first valve core is automatically closed, so that the tire will not leak from the tire valve 1.

[0056] In order to realize the connection of the steel wire hose 2 and the first connecting part 210, one end of the first plug-in part 211 is a plug-in part for being plugged into the first end of the steel wire hose 2, and the other end is a limiting part for preventing the first plug-in part 211 from being separated from the profile dismounting part 212.

[0057] The outer peripheral surface of the plug-in part has an annular clamping tooth for clamping with the inner wall of the steel wire hose 2. The inner wall of the cavity of the first end of the steel wire hose 2 is a matching clamping tooth for clamping with the annular clamping tooth. The tooth tip of the annular clamping tooth is inclined towards the profile dismounting part 212, and the tooth tip of the matching clamping tooth is inclined towards the middle direction of the steel wire hose 2, so as to realize the clamping of the annular clamping tooth and the matching clamping tooth.

[0058] It should be noted that the inner wall of the cavity of the steel wire hose 2 can also not be provided with the matching clamping tooth. By using the plastic deformation effect of the steel wire hose 2, after the plug-in part is inserted into the steel wire hose 2, the inner wall of the steel wire hose 2 is extruded by the annular clamping tooth, so that the inner wall of the steel wire hose 2 is deformed to form the matching clamping tooth for clamping with the annular clamping tooth.

[0059] The outer diameter of the limiting part is greater than the maximum outer diameter of the insert part, but not greater than the minimum diameter of the disassembly threaded hole. The profile disassembly part 212 is provided with a limiting step at one end near the steel wire hose 2. The center hole of the limiting step is smaller than the outer diameter of the limiting part, but larger than the maximum outer diameter of the insert part. The limiting part is used to restrict the limiting step.

[0060] During installation, firstly, the shaped assembly / disassembly piece 212 is fitted onto the first insert piece 211 from one end of the limiting part. When the limiting step moves along the first insert piece 211 to the position of the limiting part, it is limited by the limiting part, preventing the shaped assembly / disassembly piece 212 from slipping off the first insert piece 211. Then, the insert part of the first insert piece 211 is inserted into the cavity of the steel wire hose 2.

[0061] To prevent air leakage at the connection between the first connecting part 210 and the tire valve 1, a sealing ring fixing groove is provided on the end face of the limiting part away from the insert part. A sealing ring 213 is embedded in the sealing ring fixing groove. After the first connecting part 210 is fixed to the tire valve 1, the outer peripheral surface of the sealing ring 213 fits against the disassembly threaded hole, and the end face of the sealing ring 213 fits against the end face of the tire valve 1, so that the tire air will not leak from the connection between the first insert 211 and the profile disassembly part 212 when it is circulating.

[0062] The surface connection part of the surface disassembly and assembly part 212 can be an external hexagonal structure, and the surface connection hole of the disassembly and assembly tool 18 is an internal hexagonal structure that mates with the surface connection part, so that the disassembly and assembly tool 18 can easily mate with the surface connection part, making it convenient for maintenance personnel to apply force.

[0063] In a specific embodiment of the present invention, the second connecting part 220 is used to communicate with a pressure gauge through a plug-in assembly, the plug-in assembly including a tee connector 4 and a connector plug 3.

[0064] The tee connector 4 is equipped with a pressure pipe interface 401, a pressure gauge interface 403, and an exhaust interface 402. The pressure gauge interface 403 is used to connect a pressure gauge, and the exhaust interface 402 is used to inflate or deflate the tire. The two ends of the connector plug 3 are respectively used to connect to the second connecting part 220 and the pressure pipe interface 401. Specifically, the tee connector 4 can be installed after the steel wire hose 2 is installed.

[0065] To prevent air leakage from the pressure gauge interface 403 during installation and removal of the pressure gauge, a second valve core is installed inside the pressure gauge interface 403. A pin is provided at the interface connecting the pressure gauge and the pressure gauge interface 403. When the pressure gauge is installed on the pressure gauge interface 403, the second valve core is opened to connect the pressure gauge interface 403 to the pressure gauge. When the pressure gauge needs to be replaced or repaired, the second valve core automatically closes after the pressure gauge is removed from the pressure gauge interface 403, preventing tire air leakage from the pressure gauge interface 403.

[0066] In order to realize the connection of the steel wire hose 2 and the plug-in assembly, the second connecting part 220 comprises a second plug-in part 222 and a connecting part 221.

[0067] The second plug-in part 222 is plugged into the second end of the steel wire hose 2 and has a second plug-in part lumen in communication with the steel wire hose 2. The connecting part 221 is exposed to the steel wire hose 2 and is connected with the joint plug-in part 3, so that the steel wire hose 2 is in communication with the second plug-in part 222, and further, the steel wire hose 2 is in communication with the three-way joint 4 and the joint plug-in part 3. The end of the second plug-in part 222 plugged into the steel wire hose 2 can be similar to the structure of the plug-in part of the first plug-in part 211 and the clamping cooperation with the first end of the steel wire hose 2, which will not be described here.

[0068] In order to realize the connection function of the joint plug-in part 3, the joint plug-in part 3 is a bolt with an internally threaded connecting hole, and the connecting part 221 has an external thread in threaded cooperation with the internally threaded connecting hole. The joint plug-in part 3 is provided with an external thread cooperation part for threaded cooperation with the air pressure pipe interface 401, and the external thread cooperation part is in threaded cooperation with the inner wall of the air pressure pipe interface 401.

[0069] In order to facilitate the maintenance personnel to exert the tightening force or loosening force on the steel wire hose 2 when disassembling the steel wire hose 2, the second end of the disassembling tool 18 is provided with an anti-skid disassembling part for anti-skid.

[0070] In order to facilitate disassembly, the steel wire hose 2 disclosed in the embodiment of the application is only fixed at the end of the tire valve 1 and the walking wheel assembly 17. The second end of the steel wire hose 2 is fixed to the end of the walking wheel assembly 17 by a pipe clamp, a support 12 and the like, which is a prior art and will not be described here.

[0071] It should be noted that each of the embodiments in the present specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0072] As shown in the present application and claims, unless the context clearly indicates otherwise, "one", "a", "an" and / or "the" do not refer to the singular, but also include the plural. Generally, the terms "comprise" and "include" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements. The element defined by the statement "comprises one" does not exclude the presence of another identical element in the process, method, product or device comprising the element.

[0073] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description, and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0074] The principles and implementations of the present application are described herein with specific examples. The above description of the embodiments is only for the purpose of understanding the core idea of the present application. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, some improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A gas pressure tube assembly characterized by comprising: For straddle-type monorail vehicles, including: A steel wire hose (2) is provided with a first connecting part (210) at its first end for connecting to a tire valve (1) and a second connecting part (220) at its second end for connecting to a tire pressure gauge. The first connecting part (210) includes a profile disassembly and assembly part (212) with a profile connecting part. The profile disassembly and assembly part (212) has a disassembly and assembly threaded hole that communicates with the lumen of the steel wire hose (2). The disassembly and assembly threaded hole is used to engage with the tire valve (1) threadedly. The disassembly and assembly tool (18) has a disassembly and assembly cavity for being sleeved on the outside of the steel wire hose (2), and the first end of the disassembly and assembly tool (18) has a profile connection hole for connecting with the profile connection part of the profile disassembly and assembly component (212). The steel wire hose (2) is a hose; When installing the steel wire hose (2) onto the tire valve (1), first install the steel wire hose (2) into the disassembly and assembly cavity, and connect the profile of the profile disassembly and assembly part (212) with the profile of the profile connecting hole of the disassembly and assembly tool (18). Then extend the first end of the steel wire hose (2) from the outside of the running wheel assembly (17) to the tire valve (1). After connecting the steel wire hose (2) to the tire valve (1) by rotating the disassembly and assembly tool (18), remove the disassembly and assembly tool (18). During maintenance, the disassembly tool (18) is installed onto the wire hose (2) from the outside of the running wheel assembly (17). The disassembly tool (18) is rotated and the wire hose (2) is rotated accordingly, thereby separating the wire hose (2) from the tire valve (1).

2. The air pressure tube assembly of claim 1, wherein, The first connecting part (210) includes: The first insert (211) is inserted into the first end of the wire hose (2) and has a first insert cavity communicating with the wire hose (2); The shaped disassembly component (212) is rotatably sealed on the first insert component (211), and the disassembly threaded hole is connected to the cavity of the first insert component; A crimping member (214) is disposed on the first insert (211) for opening the first valve core of the tire valve (1).

3. The air pressure tube assembly of claim 2, wherein, One end of the first insert (211) is an insert portion that is inserted into the first end of the steel wire hose (2), and the other end is a limiting portion; The outer peripheral surface of the insertion part has annular teeth that engage with the inner wall of the steel wire hose (2). The outer diameter of the limiting part is greater than the maximum outer diameter of the insertion part, but not greater than the minimum diameter of the disassembly threaded hole. The profile disassembly component (212) is provided with a limiting step at one end near the steel wire hose (2). The center hole of the limiting step is smaller than the outer diameter of the limiting part and larger than the maximum outer diameter of the insertion part.

4. The air pressure tube assembly of claim 3, wherein, The end face of the limiting part away from the inserting part is provided with a sealing ring fixing groove, and a sealing ring (213) is embedded in the sealing ring fixing groove. The outer circumferential surface of the sealing ring (213) is fitted with the dismounting threaded hole, and the end face of the sealing ring (213) is used for being fitted with the end face of the tire valve (1).

5. The air pressure tube assembly of claim 2, wherein, The profile connecting part of the profile dismounting part (212) is an external hexagonal structure.

6. The air pressure tube assembly of claim 1, wherein, The second connecting part (220) is used for being communicated with the air pressure gauge through a plug-in assembly, and the plug-in assembly comprises: A tee joint (4) is provided with an air pressure pipe interface (401), an air pressure gauge interface (403) and an exhaust interface (402), the air pressure gauge interface (403) is used for being connected with the air pressure gauge; A joint plug-in part (3) is used for being communicated with the second connecting part (220) and the air pressure pipe interface (401) respectively.

7. The air pressure tube assembly of claim 6, wherein, The air pressure gauge interface (403) is provided with a second valve core.

8. The air pressure tube assembly of claim 6, wherein, The second connecting part (220) comprises: A second inserting part (222) is inserted into the second end of the steel wire hose (2), and has a second inserting part lumen communicated with the steel wire hose (2); A connecting part (221) is exposed to the steel wire hose (2) and connected with the joint plug-in part (3).

9. The air pressure tube assembly of claim 8, wherein, The joint plug-in part (3) is a bolt provided with an internal thread connecting hole, and the connecting part (221) has an external thread threadedly matched with the internal thread connecting hole; The joint plug-in part (3) is provided with an external thread matching part used for being threadedly matched with the air pressure pipe interface (401).

10. The gas pressure tube assembly of any one of claims 1 to 9, wherein, The second end of the dismounting tool (18) is provided with an anti-skid dismounting part used for dismounting.

Images