Pressing disassembly type fuel cut-off device

Abstract

The utility model discloses a pressing disassembly type oil breaker which comprises an end a and an end b, the end a and the end b are both provided with external threads, and the end a and the end b are in threaded connection with an inner pipe a and an inner pipe b in a one-to-one correspondence mode respectively. The end a and the end b are connected with a pipeline through external threads respectively, the inner pipe a is inserted into the inner pipe b, the steel ball is arranged in the taper hole, the outer sliding sleeve is loosened, the steel ball is pressed into the annular groove through the outer sliding sleeve under the resilience force effect of the spring b, the inner pipe a and the inner pipe b are fixed together, meanwhile, the plug is jacked open through the fixedly-arranged core rod, and the inner sliding sleeve is jacked open through the inner pipe a. After a flow channel is formed, a pipeline is connected and disconnected, a spring c acts on an inner sliding sleeve, the interior of the inner sliding sleeve is plugged by a core rod, the exterior of the inner sliding sleeve is plugged by an inner pipe b, an end b is sealed, a spring a drives a plug, the plug makes contact with an inner pipe a, plugging is achieved, the end a is sealed, it is guaranteed that oil leakage does not occur, and quick dismounting and quick pulling of the pipeline are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cut-off devices, in particular to a push-to-disassemble oil cut-off device. Background Art

[0002] Brake fluid is a liquid medium that transmits brake pressure in a hydraulic brake system and is used in vehicles with hydraulic brake systems. Brake fluid, also known as brake oil or force oil, is an indispensable part of the brake system. In the brake system, it is used as a force transmission medium. Because liquid cannot be compressed, the pressure output from the master cylinder will be directly transmitted to the slave cylinder through the brake fluid. When the brake line is disassembled, the brake oil will leak out, so a valve needs to be added to ensure that there will be no leakage during disassembly. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a push-to-disassemble oil cut-off device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A push-to-remove oil cut-off device comprises an end a and an end b, both of which are provided with external threads, the end a and the end b are respectively threadedly connected with inner tubes a and inner tubes b in a one-to-one correspondence, the inner tube a is inserted into the inner tube b and fixed by a locking structure, an elastic blocking structure a is provided in the inner tube a, and an elastic blocking structure b is provided in the inner tube b, when the inner tube a and the inner tube b are butt-jointed, the elastic blocking structure a and the elastic blocking structure b push each other apart, and a flow channel is formed inside the end a, the end b, the inner tube a and the inner tube b.

[0006] Preferably, the locking structure includes an outer sleeve slidably connected to the end b, the outer sleeve is connected to the end b through a spring b, a plurality of tapered holes are provided at the end of the inner tube b, steel balls are provided in the tapered holes, and an annular groove corresponding to the steel balls is provided on the outer wall of the inner tube a.

[0007] Preferably, the elastic plugging structure a comprises a plug located inside the inner tube a, and the plug is connected to the end a via a spring a.

[0008] Preferably, the elastic blocking structure b comprises a core rod fixedly arranged inside the end head b, an inner sliding sleeve and a spring c are respectively sleeved on the core rod, and the inner sliding sleeve is arranged close to the inner tube a.

[0009] Preferably, the ends of the plug and the core rod are both provided with sealing structures.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, the end a and the end b are respectively connected to the pipeline by external threads, the inner tube a is inserted into the inner tube b, the steel ball is placed in the tapered hole, the outer sleeve is loosened, and under the action of the rebound force of the spring b, the outer sleeve presses the steel ball into the annular groove to fix the inner tube a and the inner tube b together, and at the same time, the fixed core rod pushes the plug open, and the inner tube a pushes the inner sleeve open to form a flow channel to connect the pipeline, and after disconnection, the spring c acts on the inner sleeve, the inside of the inner sleeve is sealed by the core rod, and the outside of the inner tube b is sealed to achieve the sealing of the end b, the spring a drives the plug, the plug contacts the inner tube a to achieve sealing, and the end a is sealed to ensure that there will be no oil leakage, and the pipeline can be quickly disassembled and pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more specifically and intuitively illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0012] Figure 1 It is a schematic diagram of the structure proposed by the utility model;

[0013] Figure 2 It is a cross-sectional structural schematic diagram proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the elastic blocking structure a proposed by the utility model;

[0015] Figure 4 for Figure 3 Sectional view;

[0016] Figure 5 This is a schematic diagram of the structure of the elastic blocking structure b proposed by the utility model;

[0017] Figure 6 for Figure 5 sectional view of .

[0018] In the figure: end a1, outer sleeve 2, end b3, outer thread 4, inner tube a5, inner tube b6, steel ball 7, annular groove 8, spring a9, plug 10, core rod 11, inner sleeve 12, spring b13, spring c14, tapered hole 15. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-6A push-to-remove oil cut-off device comprises an end a1 and an end b3, both of which are provided with external threads 4, and the end a1 and the end b3 are respectively threadedly connected with inner tubes a5 and inner tubes b6 in a one-to-one correspondence, the inner tube a5 is inserted into the inner tube b6 and fixed by a locking structure, an elastic blocking structure a is provided in the inner tube a5, and an elastic blocking structure b is provided in the inner tube b6, when the inner tube a5 and the inner tube b6 are butt-jointed, the elastic blocking structure a and the elastic blocking structure b push each other apart, and a flow channel is formed inside the end a1, the end b3, the inner tube a5 and the inner tube b6.

[0021] The end a1 and the end b3 are connected to the pipeline by using the external thread 4 respectively, the inner tube a5 is inserted into the inner tube b6, the steel ball 7 is placed in the tapered hole 15, the outer sleeve 2 is loosened, and under the action of the spring b13 rebound force, the outer sleeve 2 presses the steel ball 7 into the annular groove 8, and the inner tube a5 and the inner tube b6 are fixed together. At the same time, the fixed core rod 11 pushes the plug 10 open, and the inner tube a5 pushes the inner sleeve 12 open to form a flow channel and connect the pipeline. After disconnection, the spring c14 acts on the inner sleeve 12, the inside of the inner sleeve 12 is blocked by the core rod 11, and the outside of the inner tube b6 is blocked to achieve the sealing of the end b3, and the spring a9 drives the plug 10, and the plug 10 contacts the inner tube a5 to achieve blocking, and the end a1 is sealed to ensure that there is no oil leakage and realize quick disassembly and quick pulling of the pipeline.

[0022] In this embodiment, the locking structure includes an outer sleeve 2 slidably sleeved on the end b3, the outer sleeve 2 is connected to the end b3 through a spring b13, a plurality of tapered holes 15 are provided at the end of the inner tube b6, steel balls 7 are provided in the tapered holes 15, and an annular groove 8 corresponding to the steel balls 7 is provided on the outer wall of the inner tube a5, so as to quickly fix the end a1 and the end b3 and realize quick release and quick withdrawal.

[0023] In this embodiment, the elastic plugging structure a includes a plug 10 located inside the inner tube a5. The plug 10 is connected to the end a1 via a spring a9 to achieve sealing of the end a1.

[0024] In this embodiment, the elastic blocking structure b includes a core rod 11 fixedly arranged inside the end b3, an inner sleeve 12 and a spring c14 are respectively sleeved on the core rod 11, and the inner sleeve 12 is arranged close to the inner tube a5 to achieve sealing of the end b3.

[0025] In this embodiment, sealing structures are provided at the ends of the plug 10 and the core rod 11 .

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A push-to-disassemble oil cut-off device, comprising an end a (1) and an end b (3), both of which are provided with external threads (4), characterized in that: The end piece a (1) and the end piece b (3) are respectively threadedly connected with the inner tube a (5) and the inner tube b (6); the inner tube a (5) is inserted into the inner tube b (6) and fixed by a locking structure; an elastic blocking structure a is arranged in the inner tube a (5); an elastic blocking structure b is arranged in the inner tube b (6); when the inner tube a (5) and the inner tube b (6) are butt-jointed, the elastic blocking structure a and the elastic blocking structure b push each other apart, and a flow channel is formed inside the end piece a (1), the end piece b (3), the inner tube a (5) and the inner tube b (6).

2. A push-to-disassemble oil cut-off according to claim 1, characterized in that: The locking structure comprises an outer sleeve (2) slidably sleeved on an end b (3), the outer sleeve (2) being connected to the end b (3) via a spring b (13), a plurality of tapered holes (15) being provided at the end of the inner tube b (6), steel balls (7) being provided in the tapered holes (15), and an annular groove (8) corresponding to the steel balls (7) being provided on the outer wall of the inner tube a (5).

3. A push-to-disassemble oil cut-off according to claim 2, characterized in that: The elastic plugging structure a comprises a plug (10) located inside the inner tube a (5), and the plug (10) is connected to the end a (1) via a spring a (9).

4. A push-to-disassemble oil cut-off according to claim 3, characterized in that: The elastic blocking structure b comprises a core rod (11) fixedly arranged inside the end head b (3), an inner sliding sleeve (12) and a spring c (14) are respectively sleeved on the core rod (11), and the inner sliding sleeve (12) is arranged close to the inner tube a (5).

5. A push-to-disassemble oil cut-off according to claim 4, characterized in that: The ends of the plug (10) and the core rod (11) are both provided with sealing structures.

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