EPDM brake fluid resistant pipeline sealing structure

Abstract

The utility model discloses an EPDM (Ethylene-Propylene-Diene Monomer) brake fluid-resistant pipeline sealing structure which comprises a base conduit and a connecting conduit, a connecting ring is fixedly arranged outside the base conduit and on one side of the bottom of a spiral strip, a second sealing ring is fixedly arranged on the connecting ring and on the periphery of the base conduit, and the connecting conduit is movably arranged on the periphery of the top of the base conduit. A spiral groove matched with the spiral strip in size is formed in the inner wall of the connecting guide pipe, and a limiting assembly is arranged on the periphery of the bottom of the connecting guide pipe and comprises an L-shaped rotating plate installed on the periphery of the connecting guide pipe and a limiting base installed on the periphery of the base guide pipe. Relates to the related technical field of brake fluid pipes, an L-shaped rotating plate moves in an arc-shaped limiting groove of a limiting base, after sealing connection, limiting supporting is conducted between a first hole in the L-shaped rotating plate and a second hole in the limiting base, and a fixing bolt is rotationally connected between the first hole and the second hole through a bolt; therefore, the connecting guide pipe and the base guide pipe cannot be dislocated after being sealed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake fluid pipe, especially to a EPDM brake fluid pipe sealing structure. BACKGROUND

[0002] EPDM brake fluid pipe is a specific rubber product used in automotive hydraulic brake systems, its main function is to transport brake fluid and ensure the sealing and reliability of the system, EPDM (ethylene propylene diene rubber) has excellent chemical corrosion resistance, and has good resistance to brake fluid (such as DOT3, DOT4, DOT5, etc.), can maintain its physical and chemical properties in the environment of long-term contact with brake fluid, EPDM brake fluid pipe needs sealing structure at multiple key positions to ensure the reliability and safety of the brake system.

[0003] In the entire automotive brake system, EPDM brake fluid pipe needs to be connected with brake pipes or components of other materials, these connection parts are potential leakage points, reliable sealing structure must be used to ensure the sealing of the entire brake system. Only in this way, the brake fluid can flow normally in the system, and the stable brake pressure can be maintained, and at present, in the conduit connection, the pipeline is not well limited and supported, which is easy to cause the dislocation between the pipelines in the later use process, the sealing ring is offset in the groove after the dislocation between the pipelines, the sealing performance of the pipeline is reduced, in addition, the sealing ring is only arranged on the inner wall of the pipeline, and the reinforcing sealing ring is not arranged on the outer side, in view of the above, the utility model provides a EPDM brake fluid pipe sealing structure. UTILITY MODEL CONTENTS

[0004] The purpose of the present application is to provide a EPDM brake fluid pipe sealing structure to solve the problems in the above background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a EPDM brake fluid pipe sealing structure, comprising a base conduit and a connecting conduit, a spiral strip is arranged on the top outer periphery of the base conduit, a first sealing ring is fixedly installed at the top end of the base conduit, a connecting ring is fixedly installed on the bottom side of the spiral strip outside the base conduit, a second sealing ring is fixedly installed on the outer periphery of the base conduit, the connecting conduit is movably arranged on the top outer periphery of the base conduit, a spiral groove with the same size as the spiral strip is formed in the inner wall of the connecting conduit, and a limiting assembly is arranged on the outer periphery of the bottom of the connecting conduit.

[0006] The limiting assembly comprises an L-shaped rotating plate installed around the connecting conduit and a limiting base installed around the base conduit.

[0007] Preferably, the inner wall of the connecting conduit is fixedly provided with a first sealing seat at the top of the spiral groove, and the bottom of the first sealing seat is provided with a first groove matched with the first sealing ring.

[0008] Preferably, the bottom end of the connecting conduit is provided with a second groove matched with the second sealing ring, and the connecting conduit is filled with a second sealing ring in the second groove, and the second sealing ring moves in the second groove.

[0009] Preferably, the first sealing seat is filled with a first sealing ring in the first groove, and the first sealing ring moves in the first groove.

[0010] Preferably, the limiting base is arranged at one side of the bottom of the connecting ring, the top of the limiting base is provided with an arc-shaped limiting groove matched with the L-shaped rotating plate, and the L-shaped rotating plate moves in the arc-shaped limiting groove.

[0011] Preferably, the L-shaped rotating plate is provided with a first hole, the limiting base is provided with a second hole, and the first hole and the second hole are matched in size and position.

[0012] In conclusion, the technical effects and advantages of the utility model are as follows:

[0013] 1. In the utility model, when the connecting conduit is rotatably connected with the base conduit, the first sealing ring at the top end of the base conduit enters the first groove of the first sealing seat, the first sealing ring is sealed against the first sealing ring, the inner wall of the connecting conduit is sealed, the second sealing ring on the connecting ring enters the second groove, the second sealing ring is fixed against the second sealing ring in the second groove, the sealing of the outer periphery of the bottom of the connecting conduit is realized, and the sealing performance of the pipeline connection is increased.

[0014] 2. In the utility model, during the rotation of the connecting conduit and the base conduit, the L-shaped rotating plate moves in the arc-shaped limiting groove of the limiting base, and when the connection is sealed, the first hole on the L-shaped rotating plate and the second hole on the limiting base are limited and supported, and the fixed bolt is rotatably connected between the first hole and the second hole, so that the connecting conduit and the base conduit will not be dislocated after being sealed. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description can also be used to obtain other drawings without creative labor for those skilled in the art.

[0016] Figure 1 It is a whole structure schematic perspective view of an EPDM brake fluid pipeline sealing structure in an embodiment of the present application;

[0017] Figure 2 It is a whole development structure schematic perspective view of an EPDM brake fluid pipeline sealing structure in an embodiment of the present application;

[0018] Figure 3 It is a base guide pipe structure schematic perspective view of an EPDM brake fluid pipeline sealing structure in an embodiment of the present application;

[0019] Figure 4 It is a connecting guide pipe structure schematic perspective view of an EPDM brake fluid pipeline sealing structure in an embodiment of the present application.

[0020] In the figure: 10, base guide pipe; 11, spiral strip; 12, first sealing ring; 13, connecting ring; 14, second sealing ring; 20, connecting guide pipe; 21, spiral groove; 22, first sealing seat; 23, first groove; 24, first sealing ring; 25, second groove; 26, second sealing ring; 30, L-shaped rotating plate; 31, limiting base; 32, arc-shaped limiting groove; 33, first hole; 34, second hole. DETAILED DESCRIPTION

[0021] 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 the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] Embodiment: refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The application discloses a kind of EPDM brake fluid pipeline sealing structures shown, including base conduit 10 and connecting conduit 20, the top outer periphery of base conduit 10 is provided with helical strip 11, the top of base conduit 10 is fixedly installed with first sealing ring 12, the bottom side of base conduit 10 outside helical strip 11 is fixedly installed with connecting ring 13, second sealing ring 14 is fixedly installed in the outer periphery of base conduit 10 in connecting ring 13, connecting conduit 20 is active in the top outer periphery of base conduit 10, the inner wall of connecting conduit 20 is opened with the size of the helical groove 21 that coincides with helical strip 11, the outer periphery of connecting conduit 20 bottom is provided with limiting component, limiting component includes the L-shaped rotating plate 30 of installation in the four quarters of connecting conduit 20 and the limiting base 31 of installation in the four quarters of base conduit 10, limiting support is carried out between the first hole 33 on L-shaped rotating plate 30 and the second hole 34 on limiting base 31.

[0023] Referring to Figure 2 、 Figure 3 and Figure 4 , the inner wall of connecting conduit 20 is fixedly installed with first sealing seat 22 at the top of helical groove 21, the bottom of first sealing seat 22 is opened with the size of the first recess 23 that coincides with first sealing ring 12, the bottom end of connecting conduit 20 is opened with the size of the second recess 25 that coincides with second sealing ring 14, second sealing ring 26 is filled in second recess 25 in connecting conduit 20, second sealing ring 14 is active in second recess 25, first sealing seat 22 is filled with first sealing ring 24 in first recess 23, first sealing ring 12 is active in first recess 23, second sealing ring 14 on connecting ring 13 enters second recess 25, second sealing ring 14 is fixed with second sealing ring 26 in second recess 25, realize the sealing reinforcement of the outer periphery of the bottom of connecting conduit 20, increase the sealing performance of pipeline connection.

[0024] Referring to Figure 2 、 Figure 3 and Figure 4 , limiting base 31 is installed in the bottom side of connecting ring 13, the top of limiting base 31 is opened with the size of the arc-shaped limiting groove 32 that coincides with L-shaped rotating plate 30, L-shaped rotating plate 30 is active in arc-shaped limiting groove 32, L-shaped rotating plate 30 is opened with first hole 33, limiting base 31 is opened with second hole 34, the size of first hole 33 and second hole 34 is coincident and matched, fixed bolt is connected by bolt rotation between first hole 33 and second hole 34, so that connecting conduit 20 and base conduit 10 will not be dislocated after sealing.

[0025] The utility model discloses a sealing structure of connecting pipe and base pipe, which belongs to the field of pipeline connection technology, and relates to a sealing structure of connecting pipe and base pipe, which comprises a connecting pipe and a base pipe.

[0026] When the connecting pipe 20 and the base pipe 10 are connected, the first sealing ring 12 on the top end of the base pipe 10 enters the first recess 23 of the first sealing seat 22, and the first sealing ring 12 is in sealing abutment with the first sealing ring 24, thereby sealing the inner wall of the connecting pipe 20.

[0027] During the rotation of the connecting pipe 20 and the base pipe 10, the L-shaped rotating plate 30 moves in the arc-shaped limiting groove 32 of the limiting base 31. After sealing, the first hole 33 of the L-shaped rotating plate 30 and the second hole 34 of the limiting base 31 are limited and supported, and the fixed bolt is screwed and connected between the first hole 33 and the second hole 34, so that the connecting pipe 20 and the base pipe 10 will not be dislocated after sealing.

[0028] Finally, it should be pointed out that: the above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An EPDM brake fluid resistant line seal construction comprising a base conduit (10) and a connecting conduit (20), characterized in that, The top outer periphery of the base conduit (10) is provided with a spiral strip (11), the top end of the base conduit (10) is fixedly installed with a first sealing ring (12), the outer side of the bottom of the spiral strip (11) of the base conduit (10) is fixedly installed with a connecting ring (13), the connecting ring (13) is fixedly installed with a second sealing ring (14) on the outer periphery of the base conduit (10), the connecting conduit (20) is movably arranged on the top outer periphery of the base conduit (10), the inner wall of the connecting conduit (20) is provided with a spiral groove (21) matching the size of the spiral strip (11), and the bottom outer periphery of the connecting conduit (20) is provided with a limiting assembly. The limiting assembly comprises an L-shaped rotating plate (30) installed around the connecting conduit (20) and a limiting base (31) installed around the base conduit (10).

2. A brake fluid resistant EPDM tubing seal according to claim 1, wherein: The inner wall of the connecting conduit (20) is fixedly installed with a first sealing seat (22) at the top of the spiral groove (21), and the bottom of the first sealing seat (22) is provided with a first groove (23) matching the size of the first sealing ring (12).

3. A brake fluid resistant EPDM tubing seal according to claim 1, wherein: The bottom end of the connecting conduit (20) is provided with a second groove (25) matching the size of the second sealing ring (14), the connecting conduit (20) is filled with a second sealing ring (26) in the second groove (25), and the second sealing ring (14) is movably arranged in the second groove (25).

4. A brake fluid resistant EPDM tubing seal according to claim 2, wherein: The first sealing seat (22) is filled with a first sealing ring (24) in the first groove (23), and the first sealing ring (12) is movably arranged in the first groove (23).

5. The EPDM brake fluid resistant line seal of claim 1, wherein: The limiting base (31) is installed on the bottom side of the connecting ring (13), the top of the limiting base (31) is provided with an arc-shaped limiting groove (32) matching the size of the L-shaped rotating plate (30), and the L-shaped rotating plate (30) is movably arranged in the arc-shaped limiting groove (32).

6. The EPDM brake fluid resistant line seal of claim 1, wherein: The L-shaped rotating plate (30) is provided with a first hole (33), the limiting base (31) is provided with a second hole (34), and the size and position of the first hole (33) and the second hole (34) are matched.

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