Anti-jamming structure of pipe joint

Abstract

The application discloses an anti-jamming structure of a pipeline joint, which comprises a female head and a male head. The female head comprises a female head connecting sleeve, and a first sealing ring is arranged on the inner wall of the female head connecting sleeve. A second sealing ring is arranged on the inner wall of the female head connecting sleeve and located left of the first sealing ring. The radial depth of the first sealing groove is smaller than the radial depth of the second sealing groove, and the linear diameter of the first sealing ring is smaller than the linear diameter of the second sealing ring. The male head comprises a male head main body, a first taper surface is arranged on the left end face of the male head main body, and a second taper surface is arranged on the left end outer circumferential surface of the male head main body. A round corner is arranged at the intersection of the first taper surface and the second taper surface. The size of the first sealing ring is smaller than the size of the second sealing ring, so that the resistance brought by the first sealing ring to the male head main body is small. The first taper surface, the second taper surface and the round corner play a transition and guiding role, so that the resistance of the male head main body is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of physics, and in particular to a liquid heat dissipation pipe joint, especially an anti-jamming structure for a pipe joint. Background Technology

[0002] In liquid cooling piping systems, equipment pipes are typically connected via quick-connect couplings. For example, patent (CN213809396U) discloses a direct-insertion self-locking fluid connector, which includes a male and a female connector. The male connector includes a male body with a first through hole. The right end of the first through hole has a first protruding ring, and the left end of the first protruding ring transitions through a first inclined surface. The inner wall of the first through hole has a first retaining ring groove, and a retaining ring is installed in the first retaining ring groove. A first valve core is installed in the first through hole. The first valve core has gaps between itself and the male body and the first protruding ring. The first valve core includes a large-diameter end and a small-diameter end. The large-diameter end is connected to the small-diameter end via a first connecting rod. The side wall of the large-diameter end has a connection with the first... The male connector has a second inclined surface that mates with the first inclined surface. A second through hole is provided at the large-diameter end. The first valve core is located to the right of the retaining ring. A first spring is provided between the first valve core and the retaining ring, and the first spring biases the small-diameter end to the right within the first convex ring. An arc-shaped groove is provided along the circumferential direction on the side wall of the male connector body. A second convex ring is located on the left side of the arc-shaped groove on the outer circumference of the male connector body. A first external thread is provided on the side wall of the male connector body to the left of the second convex ring. The female connector includes a female connector body with a third through hole. A pipe connector is coaxially threaded to the right side of the female connector body. The outer diameter of the pipe connector is larger than the outer diameter of the female connector body. A fourth through hole and a fifth through hole are provided in the pipe connector. The diameter of the fourth through hole is larger. The pipe connector has a flexible hose fixed to its right end via a nut, corresponding to the diameter of the fifth through hole. Inside the pipe connector is an inner core comprising a tubular body and a cylinder. The tubular body is connected to the cylinder via a second connecting rod. The tubular body has a third convex ring on its outer circumference, and a second external thread is provided on the right side of the third convex ring. The inner wall of the fifth through hole has a first internal thread, and the second external thread engages with the first internal thread. A second valve core is fitted outside the inner core, containing a sixth through hole. A fourth convex ring is located at the left end of the second valve core, and a second spring is fitted on the inner core. The right end of the second spring abuts against the left end face of the third convex ring, and the left end of the second spring abuts against the end face of the fourth convex ring. The second spring deflects the cylinder... The inner core is placed inside the fourth convex ring, and a gap is provided between the inner core and the fourth convex ring. A locking sleeve is fitted on the female head body and the pipe connector. The locking sleeve has a fifth convex ring in the middle. The left end of the fifth convex ring is transitioned through a third inclined surface. A third spring is fitted on the female head body. The right end of the third spring abuts against the left end face of the pipe connector, and the left end of the spring abuts against the right end face of the fifth convex ring. Multiple ball bearing through holes distributed in a circumferential direction are provided on the side wall of the female head body. Each ball bearing through hole contains a ball. The diameter of the ball is greater than the depth of the through hole. The third spring deflects the locking sleeve to the left, and the fifth convex ring restricts the ball within the through hole. A sixth convex ring is located on the outer circumference of the left end of the female head body. The sixth convex ring is transitioned through a fourth inclined surface.

[0003] The aforementioned patent allows for quick, one-handed installation and allows for repeated use in both on and off states, reducing the risk of leakage. In existing technologies, quick-connect couplings are extremely prone to leakage at the moment of opening during connection. Therefore, an additional sealing ring is added to the leakage point of the female connector, forming a high-sealing female connector with a double-layer sealing ring. However, this makes male coupling very difficult, causing jamming during insertion, inconveniencing equipment installation and maintenance, and even transmitting excessive mating stress directly from the connector to the equipment, damaging expensive precision equipment. Analysis shows that... Figure 1 and Figure 2 As shown, when the male head enters the high-sealing female head, it is easy to form an angle ∠a with the axis of the female head, causing the edge of the male head to hit the newly added sealing ring of the female head first, which results in stress dispersion, high resistance, and jamming during insertion. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-jamming structure for pipe connectors, which solves the technical problem of high resistance and easy jamming when the male connector is inserted into the female connector in the prior art.

[0005] This utility model provides an anti-jamming structure for a pipe connector, including a female connector and a male connector. The female connector includes a female connector sleeve, on the inner wall of the left end of which a guide cone surface is provided. On the inner wall of the female connector sleeve, to the left of the guide cone surface, a first sealing groove is provided along the circumferential direction, and a first sealing ring is provided in the first sealing groove. On the inner wall of the female connector sleeve, to the left of the first sealing groove, a second sealing groove is provided along the circumferential direction, and a second sealing ring is provided in the second sealing groove. The radial depth of the first sealing groove is less than the radial depth of the second sealing groove, the axial length of the first sealing groove is less than the axial length of the second sealing groove, and the wire diameter of the first sealing ring is less than the wire diameter of the second sealing ring. The male connector includes a male connector body, on the left end face of the male connector body, a first cone surface is provided, and on the outer circumferential surface of the left end of the male connector body, a second cone surface is provided. A rounded corner is provided at the intersection of the first cone surface and the second cone surface.

[0006] Furthermore, both the first and second sealing rings are made of rubber material.

[0007] Compared with the prior art, the effects of this invention are positive and significant. When the male connector is inserted into the female connector, the left end of the male connector body contacts the guide cone surface of the female connector connecting sleeve. The guide cone surface guides the male connector body, and the rounded corner of the male connector body contacts the first sealing ring. The size of the first sealing groove is smaller than the size of the second sealing groove, and the size of the first sealing ring is smaller than the size of the second sealing ring. Therefore, the resistance provided by the first sealing ring to the male connector body is smaller. Furthermore, the first cone surface, the second cone surface, and the rounded corner play a transition and guiding role, further reducing the resistance of the male connector body. As a result, the male connector can pass through the first sealing ring more smoothly, requiring less effort, allowing for quick connection, and reducing the likelihood of jamming. After the male connector enters the female connector, the outer circumferential surface of the male connector body cooperates with the first and second sealing rings to form a double seal, achieving a better anti-leakage effect. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of a quick-connect fitting for pipes in the prior art.

[0009] Figure 2 for Figure 1 Enlarged view of a portion of the diagram.

[0010] Figure 3 This is a schematic diagram illustrating the process of inserting the male connector into the female connector in an anti-jamming structure for a pipe joint according to this utility model.

[0011] Figure 4 for Figure 3 Enlarged view of a portion of the diagram.

[0012] Figure 5 This is a schematic diagram of the female connector in the anti-jamming structure of a pipe joint according to this utility model.

[0013] Figure 6 This is a schematic diagram of the male connector in the anti-jamming structure of a pipe joint according to this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.

[0015] like Figures 3-6As shown, this utility model provides an anti-jamming structure for a pipe connector, including a female connector 1 and a male connector 2. The female connector 1 includes a female connector sleeve 3. A guide cone surface 4 is provided on the inner wall of the left end of the female connector sleeve 3. A first sealing groove 5 is provided on the inner wall of the female connector sleeve 3 to the left of the guide cone surface 4 along the circumferential direction. A first sealing ring 6 is provided in the first sealing groove 5. A second sealing groove 7 is provided on the inner wall of the female connector sleeve 3 to the left of the first sealing groove 5 along the circumferential direction. A second sealing ring 8 is provided in the second sealing groove 7. The radial depth of the first sealing groove 5 is less than the radial depth of the second sealing groove 7. The axial length of the first sealing groove 5 is less than the axial length of the second sealing groove 7. The wire diameter of the first sealing ring 6 is less than the wire diameter of the second sealing ring 8. The male connector 2 includes a male connector body 9. A first cone surface 10 is provided on the left end face of the male connector body 9. A second cone surface 11 is provided on the outer circumferential surface of the left end of the male connector body 9. A fillet 12 is provided at the intersection of the first cone surface 10 and the second cone surface 11.

[0016] Furthermore, both the first sealing ring 6 and the second sealing ring 8 are made of rubber material.

[0017] The working principle of this utility model:

[0018] like Figure 3 and Figure 4 As shown, when the male connector 2 is inserted into the female connector 1, the left end of the male connector body 9 contacts the guide cone surface 4 of the female connector connecting sleeve 3. The guide cone surface 4 guides the male connector body 9. The rounded corner 12 of the male connector body 9 contacts the first sealing ring 6. The size of the first sealing groove 5 is smaller than the size of the second sealing groove 7, and the size of the first sealing ring 6 is smaller than the size of the second sealing ring 8. Therefore, the resistance brought to the male connector body 9 by the first sealing ring 6 is small. Furthermore, the first cone surface 10, the second cone surface 11, and the rounded corner 12 play a transition and guiding role, further reducing the resistance of the male connector body 9. Thus, the male connector 2 can pass through the first sealing ring 6 more smoothly, requiring less effort, allowing for quick connection, and preventing jamming. After the male connector 2 enters the female connector 1, the outer circumferential surface of the male connector body 9 cooperates with the first sealing ring 6 and the second sealing ring 8 to form a double seal, achieving a better anti-leakage effect.

Claims

1. A pipe fitting anti-jamming structure, comprising a female connector and a male connector, characterized in that, The female connector includes a female connector sleeve. A guide cone surface is provided on the inner wall of the left end of the female connector sleeve. A first sealing groove is provided on the inner wall of the female connector sleeve along the circumferential direction to the left of the guide cone surface. A first sealing ring is provided in the first sealing groove. A second sealing groove is provided on the inner wall of the female connector sleeve along the circumferential direction to the left of the first sealing groove. A second sealing ring is provided in the second sealing groove. The radial depth of the first sealing groove is less than the radial depth of the second sealing groove, the axial length of the first sealing groove is less than the axial length of the second sealing groove, and the wire diameter of the first sealing ring is less than the wire diameter of the second sealing ring. The male connector includes a male connector body. A first cone surface is provided on the left end face of the male connector body, and a second cone surface is provided on the outer circumferential surface of the left end of the male connector body. A rounded corner is provided at the intersection of the first and second cone surfaces.

2. The anti-jamming structure for a pipe joint according to claim 1, characterized in that, Both the first and second sealing rings are made of rubber.

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