Gas connector
By designing a gas connector that includes a first valve cylinder, a second valve cylinder, a locking ring, and a connecting core, and utilizing an external thread connection and an inclined annular surface design, the problems of gas connector leakage and safety are solved, and a better sealing effect is achieved.
Patent Information
- Application Number
- CN202520213858.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing gas connectors are prone to leakage during connection, and hose clamps or wire binding methods are unsafe, affecting production safety.
Design a gas connector that uses a combination structure of a first valve cylinder, a second valve cylinder, a locking ring, and a connecting core. Utilize external threaded connection and inclined annular surface design to ensure gas sealing.
It improves the sealing performance of the gas connector, prevents gas leakage from the connection, and enhances production safety.
Smart Images
Figure CN223595306U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gas joint technical field, especially a kind of gas joint. BACKGROUND
[0002] Gas joint is widely used in hydraulic or pneumatic system of various machines due to its simple structure, low cost, easy to use, convenient to disassemble and assemble, excellent sealing performance and other characteristics.
[0003] At present, the connecting core is mainly used to connect two broken pipes on the market, and the main method is to insert the two ends of the connecting core into the two broken pipes respectively, and then to bundle with throat clamp or iron wire outside the broken pipe. The force of throat clamp and iron wire bundle is different for different people, some are broken outside pipe, and some are loose bundle, which is easy to cause gas leakage, and the sharp outer opening of throat clamp or iron wire is easy to cut the skin and clothes, which is not conducive to safety production.
[0004] Therefore, how to design a simple structure, convenient to disassemble and assemble and good sealing gas joint is a problem to be solved by the skilled in the art. INVENTION CONTENTS
[0005] The utility model provides a kind of gas joint, solve the technical problem of existing gas structure not being sealed strictly.
[0006] The technical scheme for solving the above technical problem of the utility model is as follows, a kind of gas joint, comprising: first valve cylinder, second valve cylinder, locking ring and connecting core,
[0007] The first valve cylinder is coaxially arranged with a limiting ring on the inner cylinder wall, and a first internal thread is provided on the inner cylinder wall corresponding to one side of the limiting ring of the first valve cylinder;The outer cylinder wall of the second valve cylinder is provided with an external thread, and the external thread is threadedly connected to the first internal thread;The locking ring is arranged in the first valve cylinder between the limiting ring and the second valve cylinder, one end of the locking ring is in contact with one end of the limiting ring, and the other end of the locking ring is in contact with the second valve cylinder;The connecting core is arranged in the locking ring, and the two ends of the connecting core are inserted into two broken pipes to be connected respectively;The locking ring is sleeved on the outer circumferential side of one of the broken pipes or the connection between the two broken pipes to prevent gas from overflowing from the gap between the broken pipe and the connecting core.
[0008] The utility model discloses a beneficial effect is: improve the structure of traditional gas joint, first utilize the external thread on the outer cylinder wall of second valve barrel and be connected on the internal thread on the internal cylinder wall of first valve barrel, and then the end surface of locking ring is contacted with the one end surface of the limiting ring in the first valve barrel and the screw-in end surface of second valve barrel that stretches into the first valve barrel, because the locking ring is sleeved on the outer circumferential side of a broken pipe or the connecting place of two broken pipes, can prevent gas overflow from the gap between connecting core and broken pipe, improve the sealing property of gas joint.
[0009] On the basis of the above technical scheme, the utility model still can make following improvement.
[0010] Further, the end surface of the limiting ring close to the first internal thread is arranged from outside to inside and is inclined to the direction away from the first internal thread, forming a limiting inclined annular surface; the end surface of the screw-in end of the second valve barrel is arranged from outside to inside and is inclined to the direction away from the screw-in end, forming a blocking inclined annular surface; the outer annular surface of the locking ring is arranged from the middle to the two ends and is inclined inward, forming a first inclined annular surface and a second inclined annular surface, the first inclined annular surface is in sliding contact with the limiting inclined annular surface, and the second inclined annular surface is in sliding contact with the blocking inclined annular surface.
[0011] The further beneficial effect is that: the end surface of the limiting ring, the end surface of the screw-in end of the second valve barrel and the two end surfaces of the locking ring are all provided with inclined annular surfaces, because the first inclined annular surface is in parallel contact with the limiting inclined annular surface, and the second inclined annular surface is in parallel contact with the blocking inclined annular surface, the locking ring can be squeezed inward while rotating the first valve barrel and the second valve barrel, so as to further reduce the gap between the broken pipe and the connecting core, and prevent gas overflow from the gap between the connecting core and the broken pipe.
[0012] Further, the first valve barrel is provided with a second internal thread corresponding to the internal cylinder wall of the limiting ring away from the first internal thread.
[0013] Further, the outer cylinder wall of the first valve barrel and the second valve barrel is all provided with a rotating operation groove.
[0014] Further, the connecting core is provided with an annular gas blocking groove.
[0015] Further, the connecting core has a compression slope. DRAWINGS
[0016] Figure 1 It is the general assembly structure schematic view of the utility model discloses a kind of gas joint;
[0017] Figure 2 It is the split structure schematic view of the utility model discloses a kind of gas joint;
[0018] Figure 3This is a schematic diagram of the internal structure of a gas connector according to the present invention;
[0019] Figure 4 This is a schematic diagram of the internal structure of a gas connector of this utility model installed on two broken pipes.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. First valve cylinder; 11. First internal thread; 12. Second internal thread; 2. Second valve cylinder; 21. External thread; 22. Blocking inclined annular surface; 3. Locking ring; 31. First inclined annular surface; 32. Second inclined annular surface; 4. Connecting core; 41. Air-sealing groove; 42. Pressing ramp; 5. Limiting ring; 51. Limiting inclined annular surface; 6. Pipe break. Detailed Implementation
[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0023] like Figure 3 As shown, a gas connector includes: a first valve cylinder 1, a second valve cylinder 2, a locking ring 3, and a connecting core 4.
[0024] A limiting ring 5 is coaxially arranged on the inner wall of the first valve cylinder 1. The inner wall of the first valve cylinder 1 corresponding to the limiting ring 5 is provided with a first internal thread 11. The outer wall of the second valve cylinder 2 is provided with an external thread 21, and the external thread 21 is threaded onto the first internal thread 11. A locking ring 3 is inserted into the first valve cylinder 1 between the limiting ring 5 and the second valve cylinder 2. One end face of the locking ring 3 contacts one end face of the limiting ring 5, and the other end face contacts the screw-in end face of the second valve cylinder 2 when it is screwed into the first valve cylinder 1. A connecting core 4 is inserted into the locking ring 3, and its two ends are respectively inserted into two broken pipes 6 to be connected. The locking ring 3 is sleeved on the outer periphery of one broken pipe 6 or at the connection between two broken pipes 6 to prevent gas from escaping from the gap between the broken pipe 6 and the connecting core 4.
[0025] like Figure 2 and Figure 3 As shown, in some specific embodiments, the end face of the limiting ring 5 near the first internal thread 11 is arranged to be inclined from the outside to the inside away from the first internal thread 11, forming a limiting inclined annular surface 51; the end face of the screw-in end of the second valve cylinder 2 is arranged to be inclined from the outside to the inside away from its screw-in end, forming a blocking inclined annular surface 22; the outer annular surface of the locking ring 3 is arranged to be inclined from the middle to both ends, forming a first inclined annular surface 31 and a second inclined annular surface 32. The first inclined annular surface 31 is in sliding contact with the limiting inclined annular surface 51, and the second inclined annular surface 32 is in sliding contact with the blocking inclined annular surface 22.
[0026] As Figure 1 and Figure 2 As shown in some embodiments, the first valve cylinder 1 is provided with a second internal thread 12 corresponding to the limiting ring 5 away from the internal cylinder wall of the first internal thread 11, which is threadedly connected with the broken pipe 6.
[0027] Specifically, the outer cylinder wall of the first valve cylinder 1 and the second valve cylinder 2 is provided with a rotating operation groove.
[0028] Specifically, the connecting core 4 is provided with an annular air sealing groove 41.
[0029] Specifically, the connecting core 4 has a pressing slope 42.
[0030] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A gas fitting, characterized by, The utility model relates to a valve connection structure of two broken pipes, which comprises: a first valve cylinder (1), an inherent coaxial limiting ring (5) is arranged on the inner cylinder wall of the first valve cylinder (1), and a first internal thread (11) is arranged on the inner cylinder wall corresponding to one side of the limiting ring (5); a second valve cylinder (2), an external thread (21) is arranged on the outer cylinder wall of the second valve cylinder (2) and is screwed on the first internal thread (11); a locking ring (3), the locking ring (3) is arranged in the first valve cylinder (1) corresponding to the limiting ring (5) and the second valve cylinder (2), one end face of the locking ring (3) is in contact with one end face of the limiting ring (5), and the other end face is in contact with the screwing-in end face of the second valve cylinder (2) screwed into the first valve cylinder (1); a connecting core (4), the connecting core (4) is arranged in the locking ring (3) and is inserted into two broken pipes (6) to be connected at both ends respectively; the locking ring (3) is sleeved on the outer circumferential side of one of the broken pipes (6) or the connection part between the two broken pipes (6) to prevent gas from overflowing from the gap between the broken pipes (6) and the connecting core (4).
2. A gas connection according to claim 1, characterised in that The end face of the limiting ring (5) close to the first internal thread (11) is arranged in a direction away from the first internal thread (11) from outside to inside in sequence, forming a limiting inclined annular surface (51); the end face of the screwing-in end of the second valve cylinder (2) is arranged in a direction away from the screwing-in end from outside to inside in sequence, forming a blocking inclined annular surface (22); the outer annular surface of the locking ring (3) is arranged in a direction from the middle part to both ends in sequence, forming a first inclined annular surface (31) and a second inclined annular surface (32), the first inclined annular surface (31) is in sliding contact with the limiting inclined annular surface (51), and the second inclined annular surface (32) is in sliding contact with the blocking inclined annular surface (22).
3. A gas fitting according to claim 1, wherein, The first valve cylinder (1) is provided with a second internal thread (12) corresponding to the limiting ring (5) away from the first internal thread (11) on the inner cylinder wall, which is screwed with the broken pipe (6).
4. A gas fitting according to claim 1, wherein The outer cylinder walls of the first valve cylinder (1) and the second valve cylinder (2) are both provided with a rotating operation groove.
5. A gas fitting according to claim 1, wherein, The connecting core (4) is provided with an annular gas sealing groove (41).
6. A gas fitting according to claim 1, wherein, The connecting core (4) has a pressing slope (42).