Leak-proof brake oil pipe

Abstract

The utility model discloses a leakproof brake oil pipe which comprises a pipe body. A sealing assembly is further included. The sealing assembly comprises connecting sleeves and plugging pieces, and the connecting sleeves are arranged at the two ends of the pipe body in a sleeving mode; one end of the connecting sleeve is attached to the pipe body, the other end of the connecting sleeve is in a flaring shape, and an annular cavity is formed between the other end and the pipe body. Inserting rings are equidistantly arranged on the inner wall of the other end of the connecting sleeve; the plugging piece is arranged between the connecting sleeve and the end face of the end pipe; one end of the end pipe is inserted into the annular cavity, inserting grooves allowing the inserting rings to be inserted are formed in the surface of the end pipe at equal intervals, and an independently-sealed cavity is formed between every two inserting rings; by means of the designed sealing assembly, sealing is achieved through multiple structures, the multi-sealing effect is achieved, compared with an existing brake oil pipe, the leakproof performance of the brake oil pipe is greatly improved, meanwhile, the sealing assembly is convenient to disassemble and assemble, daily maintenance and replacement are facilitated, and the defects of the existing structure in use are overcome through the improvement.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake oil pipes, and in particular relates to a leakage-proof brake oil pipe. Background Art

[0002] The vehicle's brake oil pipe is a kind of oil pipe used in the hydraulic braking system of various automobiles. It is used to transmit hydraulic braking and plays an extremely important role in the automobile's braking system; the brake oil pipe connects the vehicle's hydraulic system and control system.

[0003] Publication No. CN109185584A discloses a brake oil pipe. The patent redesigns the threaded structure and adopts a sleeve structure to achieve the purpose of convenient disassembly and assembly and leakage prevention. However, the patent can only achieve the leakage prevention function through a single structure, so there is room for improvement in its leakage prevention effect. Utility Model Content

[0004] The utility model aims to provide a leak-proof brake oil pipe to solve the problem of insufficient leak-proof capability of the existing brake oil pipes mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leakage-proof brake oil pipe, comprising a pipe body; and also comprising a sealing assembly; the sealing assembly comprises a connecting sleeve and a sealing piece, wherein the connecting sleeve is arranged at both ends of the pipe body; one end of the connecting sleeve is in contact with the pipe body, while the other end is flared and forms an annular cavity between the pipe body; plug rings are equidistantly arranged on the inner wall of the other end of the connecting sleeve; the sealing piece is placed between the connecting sleeve and the end face of the end pipe to eliminate the gap between the two and improve the sealing effect; the end pipe, one end of which is inserted into the annular cavity, and the end surface is equidistantly provided with slots for inserting the plug rings, and an independently sealed cavity is formed between every two plug rings, thereby achieving multiple sealing effects, and at the same time, the installation stability can be improved through this connection.

[0006] Preferably, the blocking member is an airbag ring, which abuts against the end face of the end tube; the middle portion of the connecting sleeve is inclined, and the airbag ring is located in the area between the inclined shape and the tube body, so as to place the airbag ring.

[0007] Preferably, an annular groove is provided on the surface of the tube body, one end of the connecting sleeve covers the annular groove, and a locking ring is also provided on the outer surface of the tube body, and a protrusion with the same shape as the annular groove is formed on the inner side surface of the locking ring, and the protrusion squeezes one end of the connecting sleeve and is partially or completely inserted into the annular groove, so as to fix one end of the connecting sleeve, and by forcing the connecting sleeve to be inserted into the annular groove and deform, and at the same time engaging the staggered connection, the gap at the connection between the connecting sleeve and the tube body can be eliminated, thereby achieving a sealing and leakage-proof effect, wherein the locking ring is metal, and during installation, a long strip-shaped locking ring of appropriate length is selected, and when the connecting sleeve is engaged, the end of the long strip-shaped locking ring is welded and fixed.

[0008] Preferably, an integrated inner ring is also provided inside the end tube, one end of the inner ring extends toward the inner side of the end of the tube body, and the extended end expands toward the inner wall of the tube body, thereby improving the sealing effect and further improving the anti-leakage effect.

[0009] Preferably, an annular groove is formed on the inner side surface of the inner ring, and an expandable metal ring is inserted into the annular groove. The expandable metal ring can ensure that the inner ring always has the force to rebound outward, thereby achieving resistance against the inner wall of the tube body.

[0010] Preferably, the two ends of the tube body, the locking ring, the connecting sleeve and the end tube are coaxially arranged.

[0011] Preferably, one end of the end pipe facing the outside of the pipe body is connected to the oil pump, and the inner diameter of the end pipe is equal to the outer diameter of the pipe body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Through the designed sealing component, sealing is achieved through multiple structures to achieve the effect of multiple sealing. Compared with the existing brake oil pipe, its anti-leakage performance is greatly improved. At the same time, the sealing component is easy to disassemble and assemble, and is convenient for daily maintenance and replacement. This improvement improves the shortcomings of the existing structure in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the connection between the pipe body and the end pipe of the utility model;

[0016] Figure 3 It is a cross-sectional view of the end pipe of the utility model;

[0017] Figure 4 For this utility model Figure 3 A magnified schematic diagram of area A in the middle.

[0018] In the figure:

[0019] 100, tube body; 101, ring groove; 102, airbag ring;

[0020] 200, locking ring;

[0021] 300, connecting sleeve; 301, insert ring;

[0022] 400, end tube; 401, inner ring; 402, slot; 403, expansion metal ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a leak-proof brake oil pipe, comprising

[0025] Tube body 100;

[0026] It also includes a sealing assembly; the sealing assembly includes a connecting sleeve 300 and a sealing member, wherein

[0027] The connecting sleeve 300 is sleeved at both ends of the pipe body 100; one end of the connecting sleeve 300 is fitted with the pipe body 100, while the other end is flared and forms an annular cavity with the pipe body 100; insert rings 301 are equidistantly arranged on the inner wall of the other end of the connecting sleeve 300; the plugging piece is placed between the connecting sleeve 300 and the end face of the end pipe 400 to eliminate the gap between the two and improve the sealing effect;

[0028] One end of the end tube 400 is inserted into the annular cavity, and slots 402 for inserting the insert rings 301 are equidistantly provided on the end surface. An independently sealed cavity is formed between every two insert rings 301, thereby achieving multiple sealing effects. At the same time, this connection can also improve the installation stability.

[0029] In this embodiment, preferably, the blocking member is an airbag ring 102, which abuts against the end surface of the end tube 400; the middle part of the connecting sleeve 300 is inclined, and the airbag ring 102 is located in the area between the inclined shape and the tube body 100, so as to place the airbag ring 102.

[0030] In this embodiment, preferably, an annular groove 101 is provided on the surface of the tube body 100, one end of the connecting sleeve 300 covers the annular groove 101, and a locking ring 200 is also sleeved on the outer surface of the tube body 100, and the inner side surface of the locking ring 200 is formed with a protrusion with the same shape as the annular groove 101, and the protrusion squeezes one end of the connecting sleeve 300 and is partially or completely inserted into the annular groove 101, so as to fix one end of the connecting sleeve 300, and by forcing the connecting sleeve 300 to be inserted into the annular groove 101 and deformed, and at the same time engaging the staggered connection, the gap at the connection between the connecting sleeve 300 and the tube body 100 can be eliminated, thereby achieving the effect of sealing and leak prevention, wherein the locking ring 200 is metal, and during installation, a long strip-shaped locking ring 200 of appropriate length is selected, and when the connecting sleeve 300 is engaged, the end of the long strip-shaped locking ring 200 is welded and fixed.

[0031] In this embodiment, preferably, an integrated inner ring 401 is also provided inside the end tube 400, one end of the inner ring 401 extends toward the inner side of the end of the tube body 100, and the extended end expands toward the inner wall of the tube body 100, thereby improving the sealing effect and further improving the anti-leakage effect.

[0032] In this embodiment, preferably, an annular groove is provided on the inner side surface of the inner ring 401, and an expandable metal ring 403 is inserted into the annular groove. The expandable metal ring 403 can keep the inner ring 401 always having the force to rebound outward, thereby achieving resistance against the inner wall of the tube body 100.

[0033] In this embodiment, preferably, the two ends of the tube body 100, the locking ring 200, the connecting sleeve 300, and the end tube 400 are coaxially arranged.

[0034] In this embodiment, preferably, one end of the end pipe 400 facing the outside of the pipe body 100 is connected to the oil pump, and the inner diameter of the end pipe 400 is equal to the outer diameter of the pipe body 100 .

[0035] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof brake oil pipe, comprising tube body(100); Features: It also includes a sealing assembly; the sealing assembly includes a connecting sleeve (300) and a sealing member, wherein The connecting sleeve (300) is sleeved on both ends of the pipe body (100); one end of the connecting sleeve (300) is in contact with the pipe body (100), while the other end is in a flared shape and forms an annular cavity between the connecting sleeve and the pipe body (100); insert rings (301) are equidistantly arranged on the inner wall of the other end of the connecting sleeve (300); the blocking piece is placed between the connecting sleeve (300) and the end face of the end pipe (400); One end of the end tube (400) is inserted into the annular cavity, and slots (402) for inserting the insert rings (301) are equidistantly provided on the end surface, so that an independent sealed cavity is formed between every two insert rings (301).

2. The leak-proof brake oil pipe according to claim 1, characterized in that: The blocking member is an airbag ring (102), and the airbag ring (102) abuts against the end surface of the end tube (400); the middle part of the connecting sleeve (300) is inclined, and the airbag ring (102) is located in the area between the inclined shape and the tube body (100).

3. The leak-proof brake oil pipe according to claim 1, characterized in that: The surface of the tube body (100) is provided with an annular groove (101), one end of the connecting sleeve (300) covers the annular groove (101), and a locking ring (200) is also sleeved on the outer surface of the tube body (100), and a protrusion having the same shape as the annular groove (101) is formed on the inner side surface of the locking ring (200), and the protrusion presses one end of the connecting sleeve (300) and is partially or completely inserted into the annular groove (101).

4. The leak-proof brake oil pipe according to claim 1, characterized in that: An integrated inner ring (401) is also provided inside the end tube (400), one end of the inner ring (401) extends toward the inner side of the end of the tube body (100), and the extended end expands toward the inner wall of the tube body (100).

5. The leak-proof brake oil pipe according to claim 4, characterized in that: An annular groove is formed on the inner side surface of the inner ring (401), and an expansion metal ring (403) is inserted into the annular groove.

6. The leak-proof brake oil pipe according to claim 1, characterized in that: The two ends of the tube body (100), the locking ring (200), the connecting sleeve (300), and the end tube (400) are coaxially arranged.

7. The leak-proof brake oil pipe according to claim 6, characterized in that: One end of the end pipe (400) facing the outside of the pipe body (100) is connected to an oil pump, and the inner diameter of the end pipe (400) is equal to the outer diameter of the pipe body (100).

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