CN210830835U - Air brake system flexible pipeline suitable for low temperature environment - Google Patents
Air brake system flexible pipeline suitable for low temperature environment Download PDFInfo
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- CN210830835U CN210830835U CN201921765743.2U CN201921765743U CN210830835U CN 210830835 U CN210830835 U CN 210830835U CN 201921765743 U CN201921765743 U CN 201921765743U CN 210830835 U CN210830835 U CN 210830835U
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Abstract
The utility model discloses a flexible pipeline of an air brake system suitable for low-temperature environment, which belongs to the field of flexible pipelines and comprises a flexible pipe, wherein the flexible pipe comprises a PA layer, a TPEE layer is arranged in the PA layer, an adhesive layer is connected between the PA layer and the TPEE layer, one end of the flexible pipe is connected with a connecting joint, a sealing groove matched with the flexible pipe is arranged on the connecting joint in a chiseled way, the inner wall of the sealing groove is connected with a plurality of rubber sealing rings which are uniformly distributed and matched with the PA layer, a threaded connecting end is connected in the sealing groove and is in threaded connection with the TPEE layer, one end of the connecting joint, which is far away from the flexible pipe, is connected with a fixed pipe in a splicing way, a through hole which is matched with both the flexible pipe and the fixed pipe is arranged on the connecting joint in a chiseled way, the through hole runs through the connecting joint and the threaded connecting end, can realize better low temperature resistance and reliable sealing performance.
Description
Technical Field
The utility model relates to a flexible pipeline field, more specifically say, relate to a flexible pipeline of air brake system suitable for low temperature environment.
Background
At present, the working temperature range of a common air brake flexible pipeline on the market of domestic commercial vehicles is-40-120 ℃, when a vehicle is exported to a foreign cold region, the pipeline made of the material has potential safety hazards, can not meet the requirement of resisting low temperature of-60 ℃, and can have the phenomena of brittle fracture and the like. At present, commercial vehicle pneumatic brake pipelines exported to cold regions at home mostly adopt steel pipes, the connection mode influences the sealing performance and the braking effect of the whole vehicle, and the manufacturing cost is high and the installation is difficult.
The existing air brake steel pipe has three problems, namely firstly, the vibration reduction effect cannot be achieved, the steel pipe can greatly vibrate along with a vehicle, so that the sealing performance of a joint is reduced, and the problems of leakage, falling and the like occur; secondly, the loading is difficult and the replacement is not easy; thirdly, the weight of the whole vehicle is increased, and the cost is high. The conventional air brake flexible pipeline is generally made of PA materials, is not suitable for being applied under the condition of a low-temperature environment of 60 ℃ below zero, and has the defects that the pipeline is impacted by external force or has cracks or fractures under the shearing load at the temperature of 60 ℃ below zero, the brake performance of the pipeline is seriously influenced, and great safety risk exists.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a flexible pipeline of air brake system suitable for low temperature environment, it can realize that low temperature resistant performance is better, and the leakproofness is reliable.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides a flexible pipeline of air brake system suitable for low temperature environment, includes the flexible pipe, the flexible pipe includes the PA layer, be equipped with the TPEE layer in the PA layer, be connected with the adhesive linkage between PA layer and the TPEE layer, low temperature resistant performance is better, and the leakproofness is reliable.
Furthermore, one end of the flexible pipe is connected with a connecting joint, a sealing groove matched with the flexible pipe is formed in the connecting joint in a chiseled mode, a plurality of rubber sealing rings which are uniformly distributed and matched with a PA layer are connected onto the inner wall of the sealing groove, a threaded connecting end is connected into the sealing groove and is in threaded connection with a TPEE layer, a fixed pipe is connected to one end, away from the flexible pipe, of the connecting joint in a splicing mode, through holes matched with the flexible pipe and the fixed pipe are formed in the connecting joint in a chiseled mode, the through holes penetrate through the connecting joint and the threaded connecting end, a rotary disc is rotatably connected onto the connecting joint, internal threads are formed in the inner wall of the rotary disc, external threads matched with the rotary disc are formed in the outer wall of the fixed pipe in a chiseled mode, an annular sliding groove matched with the rotary disc is formed in the connecting joint in a chisele, the problems of pipeline breakage, sealing leakage and the like are easily avoided.
Furthermore, a plurality of balls which are uniformly distributed are connected between the rotary table and the annular sliding groove, so that the rotary table can rotate conveniently.
Furthermore, the end, close to the connector, of the flexible pipe is sleeved with a fastening ring, and a plurality of fixing screws which are uniformly distributed are connected between the fastening ring and the connector, so that the connection between the flexible pipe and the connector is easily reinforced.
Furthermore, the surfaces of the connecting joint and the fixed pipe are respectively paved with a heat-insulating layer, so that the temperature of the connecting joint and the temperature of the fixed pipe are easy to keep stable.
Furthermore, be connected with a plurality of evenly distributed on the inner wall of seal groove and with PA layer assorted rubber seal, easily improve the leakproofness of device.
Furthermore, the threaded connection end is in threaded connection with the TPEE layer, so that the connection stability of the flexible pipe and the connecting joint is easily improved.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) the scheme has better low-temperature resistance and reliable sealing performance.
(2) The one end of flexible pipe is connected with attach fitting, the last chisel of attach fitting have with flexible pipe assorted seal groove, be connected with a plurality of evenly distributed on the inner wall of seal groove and with PA layer assorted rubber sealing, the seal groove in-connection has the threaded connection end, threaded connection end and TPEE layer threaded connection, the one end plug-in connection that the attach fitting kept away from the flexible pipe has fixed pipe, the last chisel of attach fitting have with the flexible pipe with the equal through-hole that matches of fixed pipe, through-hole through connection joint and threaded connection end, the last carousel that rotates to be connected with of attach fitting, the internal thread of digging on the inner wall of carousel, dig on the outer wall of fixed pipe have with carousel assorted external screw thread, the last chisel of attach fitting have with carousel assorted annular spout, make things convenient for the installation of flexible pipeline, easily avoid pipeline fracture and sealed scheduling problem of revealing.
(3) A plurality of balls which are uniformly distributed are connected between the rotary table and the annular sliding groove, so that the rotary table can rotate conveniently.
(4) The one end that the flexible pipe is close to attach fitting has cup jointed the tighrening ring, is connected with a plurality of evenly distributed's set screw between tighrening ring and the attach fitting, easily consolidates being connected of flexible pipe and attach fitting.
(5) The heat preservation has all been laid on the surface of attach fitting and fixed pipe, easily makes the temperature of attach fitting and fixed pipe keep stable.
(6) The inner wall of the sealing groove is connected with a plurality of rubber sealing rings which are uniformly distributed and matched with the PA layer, so that the sealing performance of the device is easily improved.
(7) The threaded connection end is in threaded connection with the TPEE layer, so that the connection stability of the flexible pipe and the connecting joint is easily improved.
Drawings
Fig. 1 is a schematic structural view of a flexible pipe of the present invention;
FIG. 2 is a perspective view of the flexible pipe and the fixed pipe of the present invention when they are connected to the connection joint;
FIG. 3 is a schematic structural view of the flexible pipe and the fixed pipe of the present invention when they are connected to the connection joint;
fig. 4 is a schematic structural diagram at a in fig. 3.
The reference numbers in the figures illustrate:
the flexible pipe comprises a flexible pipe 1, a PA layer 101, a bonding layer 102, a TPEE layer 103, a connection joint 2, a threaded connection end 201, a turntable 202, a rubber sealing ring 203, a ball 204, a fixed pipe 3, a fastening ring 4 and a fixing screw 5.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a flexible pipeline of an air brake system suitable for a low temperature environment includes a flexible pipe 1, the flexible pipe 1 includes a PA layer 101, the PA material has a good wear resistance, so that a joint of the flexible pipe 1 is not easily loosened due to wear, a TPEE layer 103 is disposed in the PA layer 101, the TPEE material has a good low temperature resistance, so that the flexible pipe 1 is not easily brittle under a low temperature environment, and an adhesive layer 102 is connected between the PA layer 101 and the TPEE layer 103.
Referring to fig. 2, 3 and 4, one end of a flexible pipe 1 is connected with a connection joint 2, a sealing groove matched with the flexible pipe 1 is drilled on the connection joint 2, the inner wall of the sealing groove is connected with a plurality of rubber sealing rings 203 which are uniformly distributed and matched with a PA layer 101, the rubber sealing rings 203 play a sealing role, when an automobile vibrates, friction loss between the connection joint 2 and the flexible pipe 1 caused by vibration can be reduced, a threaded connection end 201 is connected in the sealing groove, the threaded connection end 201 is in threaded connection with a TPEE layer 103, one end of the connection joint 2 far away from the flexible pipe 1 is connected with a fixed pipe 3 in an inserting manner, the fixed pipe 3 is connected with an air brake system of the automobile, a through hole matched with both the flexible pipe 1 and the fixed pipe 3 is drilled on the connection joint 2, the through hole penetrates through the connection joint 2 and the threaded connection end 201, a turntable 202 is rotatably connected on the connection joint 2, cut on the inner wall of carousel 202 and have the internal thread, cut on the outer wall of fixed pipe 3 have with carousel 202 assorted external screw thread, cut on attach fitting 2 and have with carousel 202 assorted annular spout, be connected with a plurality of evenly distributed's ball 204 between carousel 202 and the annular spout, make things convenient for the rotation of carousel 202, tighrening ring 4 has been cup jointed to the one end that flexible pipe 1 is close to attach fitting 2, be connected with a plurality of evenly distributed's set screw 5 between tighrening ring 4 and the attach fitting 2, easily consolidate being connected of flexible pipe 1 and attach fitting 2, the heat preservation has all been laid on the surface of attach fitting 2 and fixed pipe 3, easily make the temperature of attach fitting 2 and fixed pipe 3 remain stable.
Under the working condition of-60 ℃ to 120 ℃, the flexible pipe 1 is not easy to crack at low temperature because the TPEE layer 103 is made of TPEE material with good low temperature resistance, the PA layer 101 has good wear resistance, when the pipeline vibrates along with the automobile, the flexible pipe 1 and the connecting joint 2 are not easy to loosen due to abrasion, the flexible pipe 1 and the connecting joint 2 have good sealing performance through the action of a plurality of rubber sealing rings 203 in the connecting joint 2, when the connection joint 2 is connected with the fixed pipe 3, the rotary table 202 is connected with the fixed pipe 3 by screw thread, the technician can rotate the rotary table 202 and push the connection joint 2 to make the fixed pipe 3 inserted with the connection joint 2, the connection joint 2 is connected with the fixed pipe 3 by rotating the rotary table 202, the installation of the connector 2 can be performed by technicians in a narrow installation environment, and the fixed pipe 3 is tightly connected with the connector 2.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (6)
1. The utility model provides a flexible pipeline of air brake system suitable for low temperature environment, includes flexible pipe (1), its characterized in that: the flexible pipe (1) comprises a PA layer (101), a TPEE layer (103) is arranged in the PA layer (101), a bonding layer (102) is connected between the PA layer (101) and the TPEE layer (103), one end of the flexible pipe (1) is connected with a connecting joint (2), a sealing groove matched with the flexible pipe (1) is formed in the connecting joint (2), a threaded connecting end (201) is connected in the sealing groove, one end, far away from the flexible pipe (1), of the connecting joint (2) is connected with a fixed pipe (3) in an inserting manner, a through hole matched with both the flexible pipe (1) and the fixed pipe (3) is formed in the connecting joint (2) in a chiseling manner, the through hole penetrates through the connecting joint (2) and the threaded connecting end (201), a rotary disc (202) is rotatably connected on the connecting joint (2), an internal thread is formed in the inner wall of the rotary disc (202), and an external thread matched with the rotary disc (202) is formed in the outer wall of the fixed pipe (3) in a chi, and an annular sliding groove matched with the rotary disc (202) is drilled on the connecting joint (2).
2. A flexible conduit for a pneumatic brake system adapted for use in a cryogenic environment as defined in claim 1, wherein: a plurality of balls (204) which are uniformly distributed are connected between the rotating disc (202) and the annular sliding groove.
3. A flexible conduit for a pneumatic brake system adapted for use in a cryogenic environment as defined in claim 1, wherein: the flexible pipe (1) is close to one end of the connecting joint (2) and is sleeved with a fastening ring (4), and a plurality of fixing screws (5) which are uniformly distributed are connected between the fastening ring (4) and the connecting joint (2).
4. A flexible conduit for a pneumatic brake system adapted for use in a cryogenic environment as defined in claim 1, wherein: and heat-insulating layers are laid on the surfaces of the connecting joint (2) and the fixed pipe (3).
5. A flexible conduit for a pneumatic brake system adapted for use in a cryogenic environment as defined in claim 1, wherein: the inner wall of the sealing groove is connected with a plurality of rubber sealing rings (203) which are uniformly distributed and matched with the PA layer (101).
6. A flexible conduit for a pneumatic brake system adapted for use in a cryogenic environment as defined in claim 1, wherein: the threaded connection end (201) is in threaded connection with the TPEE layer (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765743.2U CN210830835U (en) | 2019-10-21 | 2019-10-21 | Air brake system flexible pipeline suitable for low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765743.2U CN210830835U (en) | 2019-10-21 | 2019-10-21 | Air brake system flexible pipeline suitable for low temperature environment |
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| Publication Number | Publication Date |
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| CN210830835U true CN210830835U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921765743.2U Active CN210830835U (en) | 2019-10-21 | 2019-10-21 | Air brake system flexible pipeline suitable for low temperature environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941753A (en) * | 2022-05-20 | 2022-08-26 | 中国科学院宁波材料技术与工程研究所 | Air braking composite pipeline and gluing assembly method thereof |
-
2019
- 2019-10-21 CN CN201921765743.2U patent/CN210830835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941753A (en) * | 2022-05-20 | 2022-08-26 | 中国科学院宁波材料技术与工程研究所 | Air braking composite pipeline and gluing assembly method thereof |
| CN114941753B (en) * | 2022-05-20 | 2024-04-05 | 中国科学院宁波材料技术与工程研究所 | Air brake composite pipeline and gluing assembly method thereof |
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