Double-end internal thread oil breaker

Abstract

The utility model discloses a double-end internal thread oil breaker which comprises a pipe body a and a pipe body b, the pipe body a and the pipe body b are connected through a rotary quick connection mechanism, internal threads are arranged on inner rings of one ends, far away from the rotary quick connection mechanism, of the pipe body a and the pipe body b, an elastic sealing structure a is arranged in the pipe body a, and an elastic sealing structure b is arranged in the pipe body b. The internal threads of the pipe body a and the pipe body b are used for being connected with a pipeline, the stop pin is pushed into the J-shaped sliding opening and then rotated, the stop pin is clamped into the J-shaped sliding opening, in the process, the conical plug is plugged into the inner pipe a under the action of the ejector rod, the plug is jacked open, the inner pipe a is inserted into the inner pipe b, and the inner pipe b is sleeved in a sliding mode, so that flow channels are formed in the pipe body a and the pipe body b, and oil passing is achieved. The stop pin slides out of the J-shaped sliding opening, the sliding sleeve, the conical plug and the plug are reset under the action of the elastic piece a and the elastic piece b, and sealing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cutoffs, in particular to a double-headed internally threaded oil cutoff. Background Art

[0002] In a mechanical hydraulic system, the oil cut-off device is an important oil circuit control component, and its performance directly affects the safety and reliability of the system. However, there are some problems that need to be solved in the use of existing oil cut-off devices.

[0003] In terms of connection methods, traditional oil cut-off devices mostly use more cumbersome methods such as threaded connections. This connection method is not only inefficient in installation, but also has the disadvantage of inconvenient operation in scenarios where frequent disassembly and assembly are required, which seriously affects work efficiency.

[0004] In terms of sealing performance, existing sealing structure designs are not perfect. When the oil cut-off device is in the disconnected state, oil leakage is likely to occur. This not only wastes fuel but also pollutes the working environment. In some safety-critical applications, such as industrial production and aerospace, oil leakage can even cause serious safety accidents.

[0005] From a structural design perspective, traditional oil shut-off devices are complex. This complexity not only increases manufacturing difficulty and cost, but also complicates maintenance and repair. Once a malfunction occurs, maintenance personnel must expend considerable time and effort troubleshooting and repairing the device, increasing equipment downtime and maintenance costs.

[0006] Furthermore, the operation of existing oil cut-off devices during oil flow and oil shut-off is complex, requiring operators to possess high professional skills and operational experience. This, to a certain extent, limits the scope of use of the oil cut-off devices and increases the risk of operational errors.

[0007] In summary, existing oil cut-off devices have shortcomings in terms of connection convenience, sealing reliability, structural complexity, and operational convenience. There is an urgent need for a new type of oil cut-off device that can solve the above problems to meet the needs of modern mechanical hydraulic systems for efficient, safe, and reliable oil circuit control. Utility Model Content

[0008] The utility model aims to solve the shortcomings in the prior art and proposes a double-ended internal thread oil cutoff.

[0009] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0010] A double-ended internally threaded oil breaker comprises a tube body a and a tube body b, which are connected by a rotary quick-connect mechanism. The inner rings of the ends of the tube bodies a and b away from the rotary quick-connect mechanism are both provided with internal threads. An elastic sealing structure a is provided inside the tube body a, and an elastic sealing structure b is provided inside the tube body b. When the tube bodies a and b are butt-jointed and fixed by the rotary quick-connect mechanism, the elastic sealing structure a and the elastic sealing structure b are pushed apart from each other, and the interiors of the tube bodies a and b are connected to form a flow channel.

[0011] Preferably, the tube body a includes an outer tube a and an inner tube a, the outer tube a and the inner tube a are threadedly connected, the tube body b includes an outer tube b and an inner tube b threadedly connected thereto, the inner tube b is sleeved with a connecting tube on the outside, and the end of the connecting tube is clamped between the outer tube b and the inner tube b.

[0012] Preferably, the rotary quick-connect mechanism includes J-shaped sliding openings equidistantly arranged on the connecting pipe, and the outer wall of the end of the inner pipe a is provided with a stop pin corresponding to the J-shaped sliding opening.

[0013] Preferably, the elastic sealing structure a includes an elastic part a installed inside the inner tube a, one end of the elastic part a abuts against the inside of the outer tube a, and the other end of the elastic part a is provided with a plug, and the outer ring of the plug and the inner wall of the inner tube a are both provided with annular conical surfaces that fit each other.

[0014] Preferably, the elastic sealing structure b includes a push rod and an elastic part b sleeved thereon, one end of the push rod is clamped and fixed by an outer tube b and an inner tube b, and the other end is connected to a conical plug, a sliding sleeve is slidably sleeved on the conical plug, and the sliding sleeve is slidably connected to the inner wall of the inner tube b.

[0015] Preferably, the sliding sleeve, the tapered plug, the inner tube a and the outer ring of the plug are all provided with sealing rings.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the internal threads of the tube body a and the tube body b in the present invention are used to connect the pipelines, the stop pin is pushed into the J-shaped slide, and then rotated, the stop pin is stuck in the J-shaped slide, during this process, the tapered plug is inserted into the inner tube a under the action of the push rod, the plug is pushed open, the inner tube a is inserted into the inner tube b, and the sleeve is pushed in, thereby generating a flow channel inside the tube body a and the tube body b to achieve oil flow, conversely, the stop pin is slid out of the J-shaped slide, and under the action of the elastic part a and the elastic part b, the sleeve, the tapered plug, and the plug are reset to achieve sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0018] Figure 1 This is a schematic diagram of the structure proposed by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0020] Figure 3 It is a structural diagram of the tube body b;

[0021] Figure 4 for Figure 3 Schematic diagram of the internal structure;

[0022] Figure 5 It is a structural schematic diagram of the tube body a;

[0023] Figure 6 for Figure 5 Schematic diagram of the internal structure.

[0024] In the figure: tube body a1, outer tube a11, inner tube a12, tube body b2, outer tube b21, connecting tube 22, inner tube b23, J-shaped slide 3, stop pin 4, elastic member a5, elastic member b6, push rod 7, sliding sleeve 8, tapered plug 9, plug 10. DETAILED DESCRIPTION

[0025] 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 the embodiments.

[0026] Reference Figure 1-6 A double-headed internally threaded oil breaker includes a tube body a1 and a tube body b2. The tube bodies a1 and b2 are connected by a rotary quick-connect mechanism. The inner rings of the ends of the tube bodies a1 and b2 away from the rotary quick-connect mechanism are both provided with internal threads. An elastic sealing structure a is provided inside the tube body a1, and an elastic sealing structure b is provided inside the tube body b2. When the tube bodies a1 and b2 are docked and fixed by the rotary quick-connect mechanism, the elastic sealing structure a and the elastic sealing structure b are pushed apart from each other, and the interiors of the tube bodies a1 and b2 are connected to form a flow channel.

[0027] The internal threads of the tube body a1 and the tube body b2 are used to connect the pipelines. The stop pin 4 is pushed into the J-shaped slide 3 and then rotated. The stop pin 4 is stuck in the J-shaped slide 3. During this process, the tapered plug 9 is inserted into the inner tube a12 under the action of the push rod 7, and the plug 10 is pushed open. The inner tube a12 is inserted into the inner tube b23, and the sleeve 8 is pushed in, thereby creating a flow channel inside the tube body a1 and the tube body b2 to achieve oil flow. Conversely, the stop pin 4 is slid out of the J-shaped slide 3. Under the action of the elastic parts a5 and b6, the sleeve 8, the tapered plug 9, and the plug 10 are reset to achieve sealing.

[0028] In this embodiment, the tube body a1 includes an outer tube a11 and an inner tube a12, and the outer tube a11 and the inner tube a12 are threadedly connected. The tube body b2 includes an outer tube b21 and an inner tube b23 threadedly connected thereto. The inner tube b23 is sleeved with a connecting tube 22 on the outside, and the end of the connecting tube 22 is clamped between the outer tube b21 and the inner tube b23.

[0029] In this embodiment, the rotary quick-connect mechanism includes J-shaped sliding openings 3 equidistantly arranged on the connecting tube 22 , and a stop pin 4 corresponding to the J-shaped sliding opening 3 is provided on the outer wall of the end of the inner tube a12 .

[0030] In this embodiment, the elastic sealing structure a includes an elastic part a5 installed inside the inner tube a12, one end of the elastic part a5 abuts against the inside of the outer tube a11, and the other end of the elastic part a5 is provided with a plug 10, and the outer ring of the plug 10 and the inner wall of the inner tube a12 are both provided with annular conical surfaces that fit each other.

[0031] In this embodiment, the elastic sealing structure b includes a push rod 7 and an elastic member b6 sleeved thereon. One end of the push rod 7 is clamped and fixed by an outer tube b21 and an inner tube b23, and the other end is connected to a conical plug 9. A sliding sleeve 8 is slidably sleeved on the conical plug 9, and the sliding sleeve 8 is slidably connected to the inner wall of the inner tube b23.

[0032] In this embodiment, the sliding sleeve 8, the tapered plug 9, the inner tube a12 and the outer ring of the plug 10 are all provided with sealing rings to further enhance the sealing effect.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-ended internal thread oil cut-off device, comprising a tube body a (1) and a tube body b (2), characterized in that: The tube body a (1) and the tube body b (2) are connected by a rotating quick-connect mechanism. The inner rings of the tube body a (1) and the tube body b (2) at one end away from the rotating quick-connect mechanism are both provided with internal threads. The interior of the tube body a (1) is provided with an elastic sealing structure a, and the interior of the tube body b (2) is provided with an elastic sealing structure b. When the tube body a (1) and the tube body b (2) are docked and fixed by the rotating quick-connect mechanism, the elastic sealing structure a and the elastic sealing structure b are pushed apart from each other, and the interiors of the tube body a (1) and the tube body b (2) are connected to form a flow channel.

2. A double-ended internal thread oil cut-off according to claim 1, characterized in that: The tube body a (1) comprises an outer tube a (11) and an inner tube a (12), wherein the outer tube a (11) and the inner tube a (12) are threadedly connected. The tube body b (2) comprises an outer tube b (21) and an inner tube b (23) threadedly connected thereto, wherein a connecting tube (22) is sleeved on the outer side of the inner tube b (23), and an end portion of the connecting tube (22) is clamped between the outer tube b (21) and the inner tube b (23).

3. A double-ended internal thread oil cut-off according to claim 2, characterized in that: The rotary quick-connect mechanism comprises J-shaped sliding openings (3) equidistantly arranged on the connecting pipe (22), and a stop pin (4) corresponding to the J-shaped sliding opening (3) is provided on the outer wall of the end of the inner pipe a (12).

4. A double-ended internal thread oil cut-off according to claim 3, characterized in that: The elastic sealing structure a comprises an elastic member a (5) installed inside the inner tube a (12), one end of the elastic member a (5) abuts against the inside of the outer tube a (11), and the other end of the elastic member a (5) is provided with a plug (10), and the outer ring of the plug (10) and the inner wall of the inner tube a (12) are both provided with annular conical surfaces that fit each other.

5. A double-ended internal thread oil cut-off according to claim 4, characterized in that: The elastic sealing structure b comprises a push rod (7) and an elastic member b (6) sleeved thereon, one end of the push rod (7) being clamped and fixed by an outer tube b (21) and an inner tube b (23), and the other end being connected to a conical plug (9), a sliding sleeve (8) being slidably sleeved on the conical plug (9), and the sliding sleeve (8) being slidably connected to the inner wall of the inner tube b (23).

6. A double-ended internal thread oil cut-off according to claim 5, characterized in that: The sliding sleeve (8), the tapered plug (9), the inner tube a (12) and the outer ring of the plug (10) are all provided with sealing rings.

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