Simple pipeline quick connector

Abstract

The utility model discloses a simple pipeline quick connector which comprises a shell, the shell is provided with at least one quick connecting port, a sealing groove is formed in the quick connecting port, a sealing assembly is arranged in the sealing groove, a connecting cylinder is connected outside the quick connecting port in a sleeved mode, and a connecting structure is arranged at the end of the quick connecting port. Outer ring covers are arranged at the ends, away from the side of the quick connection port, of the connection structures, the connection structures and the outer ring covers are wrapped by the connection cylinder, unlocking rings are arranged in the outer ring covers in a matched mode, clamping jaw rings are arranged between the outer ring covers and the connection structures, and the outer ring covers and the unlocking rings are provided with beveling climbing structures. According to the pipeline quick connector, the number of parts is reduced, so that the effect of simplifying the structure is achieved, even if the structure is simplified, the connection tightness between the parts can be well kept, the manufacturing cost of the pipeline quick connector is further reduced, and popularization of the pipeline quick connector is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a simple pipeline quick connector. Background Art

[0002] As a new type of pipeline connection device, the pipe quick connector solves the problem of high difficulty in pipeline connection operation, allowing people to perform pipeline connection operations even without the guidance of non-professionals, bringing more convenience to people.

[0003] Existing pipe quick connectors are usually composed of multiple parts, such as the pipe connector disclosed in the Chinese utility model patent with authorization publication number CN218326772U. The pipe connector has a complex structure composed of multiple parts to simplify the pipe connection operation. However, the complex structure also brings some problems to the pipe connector. First, the excessive number of components causes the pipe connector to have a high manufacturing cost. Second, the excessive number of components causes the assembly time to be too long. In addition, during assembly, the components of the pipe connector need to be installed in sequence at the quick-connect port of the pipe connector. If the connection tightness between the front and rear components is not enough, the assembled components are prone to positional displacement when the subsequent components are installed. These problems affect the assembly efficiency of the pipe connector and are also the main reason for the low market popularity of pipe connectors. Utility Model Content

[0004] In view of the technical defects existing in the background technology, the present invention proposes a simple pipe quick connector, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0005] The utility model discloses a simple pipe quick connector, which includes a shell, the shell is provided with at least one quick-connect port, a sealing groove is provided in the quick-connect port, a sealing assembly is provided in the sealing groove, a connecting cylinder is connected to the outer shell of the quick-connect port, the end of the quick-connect port is provided with a connecting structure, the end of the connecting structure away from the quick-connect port is provided with an outer ring cover, the connecting structure and the outer ring cover are both wrapped by the connecting cylinder, an unlocking ring is matched in the outer ring cover, a claw ring is provided between the outer ring cover and the connecting structure, and several of the outer ring covers and the unlocking rings are provided with bevel climbing structures.

[0006] As a further embodiment of the present invention, the connecting structure includes a protrusion, a first groove and a first inner ring cover, the end of the quick-connect port is circumferentially provided with several protrusions, the end of the outer ring cover away from the mating side of the unlocking ring is circumferentially provided with several first grooves, the outer ring cover is connected to the outer shell through the cooperation of the first groove and the protrusion, the end of the outer ring cover close to the quick-connect port is provided with a first mating groove with a diameter larger than the diameter of the quick-connect port, the first inner ring cover is fitted in the first mating groove, the outer ring cover away from the outside of the first mating groove is provided with a second mating groove with a diameter smaller than the diameter of the first mating groove, and the claw ring is fitted in the second mating groove.

[0007] As a further embodiment of the present invention, the connecting structure includes a first socket, a second inner ring cover, a first plug, a second plug and a second socket, the end of the quick-connect port is circumferentially provided with several first sockets, the second inner ring cover is fitted at the end of the quick-connect port, one end of the second inner ring cover is circumferentially provided with several first plugs, the second inner ring cover is connected to the outer shell through the fitting of the first plug and the first socket, the end of the outer ring cover away from the fitting side of the unlocking ring is circumferentially provided with several second plugs, the other end of the second inner ring cover is circumferentially provided with several second sockets, the outer ring cover is connected to the end of the second inner ring cover through the fitting of the second plug and the second socket, a third fitting groove is provided in the end of the outer ring cover close to the second inner ring cover, the claw ring is fitted in the third fitting groove, and the end of the second inner ring cover close to the outer ring cover extends into the third fitting groove.

[0008] As a further embodiment of the present invention, the outer edge portion of the claw ring is a closed outer ring body with both end faces being flat, the inner edge portion of the claw ring is an inner ring body inclined toward the central axis of the claw ring, and the inner ring body is provided with a plurality of notches in the circumference, the part of the inner ring body located between two adjacent notches forms claws, and the end of the claw close to the center of the claw ring is provided with a card interface.

[0009] As a further embodiment of the present invention, a stepped portion is provided in the middle of the outer ring cover, the unlocking ring is fitted in the stepped portion, an annular second limiting portion is provided on the outer side of the middle section of the unlocking ring, the internal space of the outer ring cover inside the stepped portion is a movable cavity, the second limiting portion is located in the movable cavity, and the end of the unlocking ring close to the outer shell is provided with an inclined surface that abuts against the claw ring.

[0010] As a further embodiment of the present invention, the bevel climbing structure includes a fixed bevel surface and a dynamic bevel surface. The outer ring cover wall outside the movable cavity is circumferentially provided with several fixed bevel surfaces, and the second limiting portion is provided with several dynamic bevel surfaces. The dynamic bevel surface is beveled and matched with the fixed bevel surface. The two side parts of the fixed bevel surface are the first bevel segments, and the middle part of the fixed bevel surface is the first flat cut segment. The two adjacent fixed bevel surfaces are transitioned through the second flat cut segment provided at the end of the first bevel segment. The two side parts of the dynamic bevel surface are the second bevel segments, and the middle part of the dynamic bevel surface is the third flat cut segment. The two adjacent dynamic bevel surfaces are transitioned through the fourth flat cut segment provided at the end of the second bevel segment.

[0011] The beneficial effects of the present invention are as follows: compared with the prior art, the pipe quick connector reduces the number of components to achieve a simplified structure. Fewer components are more conducive to improving assembly efficiency during production, allowing the pipe quick connector to meet large-scale production needs; even though the pipe quick connector has a simplified structure, the various components in the pipe quick connector can maintain excellent connection tightness through the connection structure, achieving the same internal connection tightness as the existing pipe quick connector; and the structural simplification also further reduces the manufacturing cost of the pipe quick connector, which is conducive to the popularization of the pipe quick connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the external structure of the first type of pipe quick connector.

[0013] Figure 2 This is a schematic diagram of the internal structure of the first type of pipe quick connector.

[0014] Figure 3 This is a schematic diagram of the components that fit at the quick-connect port in the first type of pipe quick connector.

[0015] Figure 4 This is a schematic diagram of the structure when the outer ring cover in the first pipe quick connector is connected to the outer shell.

[0016] Figure 5 This is a schematic diagram of the external structure of the second type of pipe quick connector.

[0017] Figure 6 Schematic diagram of the internal structure of the second type of pipe quick connector.

[0018] Figure 7 This is a schematic diagram of the components that fit at the quick-connect port in the second type of pipe quick connector.

[0019] Figure 8 This is a schematic diagram of the structure when the outer ring cover in the second pipe quick connector is connected to the outer shell.

[0020] Figure 9 It is a structural diagram of the claw ring.

[0021] Figure 10 This is a schematic diagram of the outer ring cover structure in the first type of pipe quick connector.

[0022] Figure 11 This is a schematic diagram of the outer ring cover structure in the second type of pipe quick connector.

[0023] Figure 12 Schematic diagram of the unlocking ring structure in the first type of pipe quick connector and the second type of pipe quick connector.

[0024] Figure 13 This is a schematic diagram of the bevel climbing structure in the pipe quick connector in the unlocked state.

[0025] Figure 14 This is a schematic diagram of the bevel climbing structure in the pipe quick connector in a locked state.

[0026] In the figure, 1, housing; 2, quick-connect port; 3, sealing groove; 4, sealing assembly; 5, connecting tube; 6, connecting structure; 7, outer ring cover; 8, second flat cut section; 9, unlocking ring; 10, claw ring; 101, outer ring body; 102, inner ring body; 103, notch; 12, protrusion; 13, first groove; 14, first inner ring cover; 15, first plug; 16, first matching groove; 17, second matching groove; 18, first socket ; 19. Second inner ring cover; 20. Second plug block; 21. Second socket; 22. Third matching groove; 23. Claw; 24. Card interface; 25. Step portion; 26. Second limiting portion; 27. Second groove; 28. Movable cavity; 29. ​​Inclined surface; 30. Fixed beveled surface; 31. Moving beveled surface; 32. First beveled section; 33. First flat-cut section; 34. Second beveled section; 35. Third flat-cut section; 36. Fourth flat-cut section. DETAILED DESCRIPTION

[0027] Example 1:

[0028] This embodiment discloses a simple pipe quick connector. Figures 1 to 3 As shown in combination, the pipeline quick connector includes an outer shell 1, which is provided with at least one quick-connect port 2, a sealing groove 3 is provided in the quick-connect port 2, a sealing assembly 4 is provided in the sealing groove 3, a connecting tube 5 is connected to the outer shell of the quick-connect port 2, and a connecting structure 6 is provided at the end of the quick-connect port 2. The end of the connecting structure 6 away from the quick-connect port 2 is provided with an outer ring cover 7, the connecting structure 6 and the outer ring cover 7 are both wrapped by the connecting tube 5, an unlocking ring 9 is matched in the outer ring cover 7, a claw ring 10 is provided between the outer ring cover 7 and the connecting structure 6, and several of the outer ring covers 7 and the unlocking rings 9 are provided with a bevel climbing structure.

[0029] Compared with the prior art, the pipe quick connector has a reduced number of components, among which the number of sealing grooves 3 and sealing assemblies 4 is reduced, and the original support ring design is eliminated, thereby achieving the effect of simplifying the structure. Fewer components are more conducive to improving assembly efficiency during production, so that the pipe quick connector can meet the needs of large-scale production; even though the structure of the pipe quick connector is simplified, the connection structure 6 can enable the various components in the pipe quick connector to maintain excellent connection tightness performance, achieving the same internal connection tightness as the existing pipe quick connector; and the structural simplification also further reduces the manufacturing cost of the pipe quick connector, which is conducive to the popularization of the pipe quick connector.

[0030] It needs to be further explained that, Figures 2 to 4 As shown in the figure, the connecting structure 6 includes a protrusion 12, a first groove 13 and a first inner ring cover 14. The end of the quick-connect port 2 is circumferentially provided with several protrusions 12, and the end of the outer ring cover 7 away from the mating side of the unlocking ring 9 is circumferentially provided with several first grooves 13. The outer ring cover 7 is connected to the outer shell 1 through the cooperation of the first groove 13 and the protrusion 12. The end of the outer ring cover 7 close to the quick-connect port 2 is provided with a first mating groove 16 with a diameter larger than the diameter of the quick-connect port 2. The first inner ring cover 14 is fitted in the first mating groove 16. The first mating groove 16 is away from the outer ring cover 7 with a second mating groove 17 with a diameter smaller than the diameter of the first mating groove 16. The claw ring 10 is fitted in the second mating groove 17.

[0031] Among them, the outer ring cover 7 is connected to the outer shell 1 through the cooperation of the first groove 13 and the protrusion 12, so that the components at the end of the outer shell 1 can maintain good connection tightness after the outer ring cover 7 is assembled. Therefore, when the connecting tube 5 is assembled to the end of the pipe quick connector, the position offset of the connecting tube 5 is avoided, the assembly difficulty of the pipe quick connector is reduced, and the mistakes of the assemblers when assembling the pipe quick connector can be reduced, so that the assembly efficiency of the pipe quick connector is improved.

[0032] Specifically, if Figure 2 、 Figure 6 and Figure 9 As shown, the outer edge of the claw ring 10 is a closed outer ring body 101 with both end faces being flat, and the inner edge of the claw ring 10 is an inner ring body 102 inclined toward the central axis of the claw ring 10, and the inner ring body 102 is circumferentially provided with a plurality of notches 103, and the part of the inner ring body 102 located between two adjacent notches 103 forms claws 23, and the end of the claw 23 close to the center of the claw ring 10 is provided with a card interface 24.

[0033] Since the pipe clamped by the claw ring 10 is subjected to the water pressure during the use of the pipe quick connector and tends to be pushed toward the pipe quick connector, a force is generated on the claw ring 10 in the direction away from the center of the pipe quick connector, which easily causes the edge of the pipe quick connector to shift. The two end faces of the claw ring 10 are both flat, and the design of its fit in the second matching groove 17 allows its edge to be limited by both the outer ring cover 7 and the inner ring cover, keeping the position of the claw ring 10 unchanged, so that the claw ring 10 can firmly lock the pipe installed in the pipe quick connector; moreover, the metal claws used in the existing pipe quick connector have a notch from the metal claws. The inner edge extends all the way to the outer edge of the metal claw. In the claw ring 10 of the present pipe quick connector, which is a structure similar to a metal claw, the position of the notch 103 is only set on the inner edge of the claw ring 10. Compared with the notch setting form on the metal claw in the prior art, the position of the notch 103 on the claw ring 10 will not be too deep, so that the setting of the notch 103 will not affect the integrity of the outer edge of the claw ring 10 as a ring structure. It is equivalent to increasing the anti-bending strength of the claw ring 10 while maintaining the bendability of the claws 23, so that the claw ring 10 in the present pipe quick connector is more durable than the metal claws in the existing pipe quick connector.

[0034] It needs to be further explained that, Figure 2 、 Figure 6 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 As shown in the figure, a stepped portion 25 is provided in the middle of the outer ring cover 7, and the unlocking ring 9 is fitted in the stepped portion 25. An annular second limiting portion 26 is provided on the outer side of the middle section of the unlocking ring 9. The internal space of the outer ring cover 7 inside the stepped portion 25 is a movable cavity 28. The second limiting portion 26 is located in the movable cavity 28. The end of the unlocking ring 9 close to the outer shell 1 is provided with a slope 29 that abuts against the claw ring 10.

[0035] At the same time, the bevel climbing structure includes a fixed bevel surface 30 and a dynamic bevel surface 31. The outer ring cover 7 outside the movable cavity 28 is circumferentially provided with several fixed bevel surfaces 30, and the second limiting portion 26 is provided with several dynamic bevel surfaces 31. The dynamic bevel surface 31 is beveled and matched with the fixed bevel surface 30. The two side parts of the fixed bevel surface 30 are the first bevel sections 32, and the middle part of the fixed bevel surface 30 is the first flat section 33. The two adjacent fixed bevel surfaces 30 are transitioned through the second flat section 8 provided at the end of the first bevel section 32. The two side parts of the dynamic bevel surface 31 are the second bevel sections 34, and the middle part of the dynamic bevel surface 31 is the third flat section 35. The two adjacent dynamic bevel surfaces 31 are transitioned through the fourth flat section 36 provided at the end of the second bevel section 34.

[0036] When the pipe quick connector is in the unlocked state, the first flat cut section 33 and the third flat cut section 35 abut against each other, and the end of the unlocking ring 9 will be squeezed against the claws 23 on the claw ring 10, causing the claws 23 on the claw ring 10 to open outward; the pipe is inserted into the pipe quick connector along the direction of the quick connection port, and then the unlocking ring 9 is driven to rotate by the unlocking tool; during the rotation of the unlocking ring 9, the beveled cooperation of the first beveled section 32 and the second beveled section 34 will cause the unlocking ring 9 to move away from the claw ring 10, and the claws 23 on the claw ring 10 will continue to shrink inward, and the continuously shrinking claws 23 clamp the pipe. When the first flat cut section 33 and the fourth flat cut section 36 abut against each other and the third flat cut section 35 abut against the second flat cut section 8, the unlocking ring 9 no longer moves in the direction away from the claw ring 10. At this time, the pipe quick connector is in a locked state on the pipe.

[0037] When the pipe quick connector is in the unlocked state for the pipe, the first flat cut section 33 and the third flat cut section 35 are in abutment against each other, and the end of the unlocking ring 9 will be squeezed against the claws 23 on the claw ring 10, so that the claws 23 on the claw ring 10 are opened outward; after the pipe is installed into the pipe quick connector along the direction of the quick connection port, if the unlocking ring 9 is forgotten to be rotated to lock the pipe, one end of the unlocking ring 9 will still be in abutment against the claw ring 10, so that the claws on the claw ring 10 cannot be normally retracted inward, so that the claws 23 on the claw ring 10 cannot clamp the pipe, and under the action of water pressure, the pipe will fall out of the pipe quick connector.

[0038] Since this technical point is one of the main working principles of the present pipe quick connector, although the principle of locking and unlocking the pipe is the same as that of the existing pipe quick connector, it is necessary to mention it again here.

[0039] Example 2:

[0040] The difference between this embodiment and the first embodiment is that Figures 5 to 8As shown in the figure, the connection structure 6 includes a first socket 18, a second inner ring cover 19, a first plug 15, a second plug 20 and a second socket 21. The end of the quick-connect port 2 is circumferentially provided with a plurality of first sockets 18, the second inner ring cover 19 is fitted at the end of the quick-connect port 2, and one end of the second inner ring cover 19 is circumferentially provided with a plurality of first plugs. The second inner ring cover 19 is connected to the housing 1 through the fit of the first plug and the first socket 18. The outer ring cover 7 is away from the unlocking ring. 9 A plurality of second plug blocks 20 are circumferentially provided at the end of the mating side, and a plurality of second sockets 21 are circumferentially provided at the other end of the second inner ring cover 19. The outer ring cover 7 is connected to the end of the second inner ring cover 19 through the cooperation of the second plug blocks 20 and the second sockets 21. A third mating groove 22 is provided in the end of the outer ring cover 7 close to the second inner ring cover 19, and the claw ring 10 is fitted in the third mating groove 22. The end of the second inner ring cover 19 close to the outer ring cover 7 extends to the third mating groove 22.

[0041] It should be noted that: during the assembly of the pipe quick connector, after the inner ring cover is connected to the outer shell 1 through the cooperation of the first plug block and the first socket 18, the unlocking ring 9 and the claw ring 10 are installed to the outer ring cover 7 in sequence, and then the outer ring cover 7 is installed to the end of the inner ring cover along the direction of the cooperation of the second plug block 20 and the second socket 21, so that the components in the connecting tube 5 form an integral connection structure 6, not only forming a tight connection between the outer shell 1, the inner ring cover and the outer ring cover 7, but also maintaining the position of the claw ring 10 and the unlocking ring 9 in the outer ring cover 7, and thus achieving the same effect as in Example 1: after the outer ring cover 7 is assembled, a good connection tightness is maintained, thereby avoiding the position deviation of the connecting tube 5 when assembling the connecting tube 5 to the end of the pipe quick connector, reducing the assembly difficulty of the pipe quick connector, and reducing the mistakes of the assemblers when assembling the pipe quick connector, so as to improve the assembly efficiency of the pipe quick connector.

[0042] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A simple pipe quick connector, comprising a housing, wherein the housing is provided with at least one quick connector port, characterized in that: A sealing groove is provided in the quick-connect port, a sealing assembly is provided in the sealing groove, a connecting tube is connected to the outer shell of the quick-connect port, a connecting structure is provided at the end of the quick-connect port, an outer ring cover is provided at the end of the connecting structure away from the quick-connect port, the connecting structure and the outer ring cover are both wrapped by the connecting tube, an unlocking ring is fitted in the outer ring cover, a claw ring is provided between the outer ring cover and the connecting structure, and several of the outer ring covers and unlocking rings are provided with a bevel climbing structure.

2. The pipe quick connector according to claim 1, characterized in that: The connecting structure includes a protrusion, a first groove and a first inner ring cover. The end of the quick-connect port is circumferentially provided with several protrusions, and the end of the outer ring cover away from the unlocking ring mating side is circumferentially provided with several first grooves. The outer ring cover is connected to the outer shell through the cooperation of the first groove and the protrusion. The end of the outer ring cover close to the quick-connect port is provided with a first mating groove with a diameter larger than the diameter of the quick-connect port. The first inner ring cover is fitted in the first mating groove. The outer ring cover away from the outside of the first mating groove is provided with a second mating groove with a diameter smaller than the diameter of the first mating groove. The claw ring is fitted in the second mating groove.

3. The pipe quick connector according to claim 1, characterized in that: The connecting structure includes a first socket, a second inner ring cover, a first plug, a second plug and a second socket. The end of the quick-connect port is circumferentially provided with several first sockets, and the second inner ring cover is fitted at the end of the quick-connect port. One end of the second inner ring cover is circumferentially provided with several first plugs, and the second inner ring cover is connected to the outer shell through the fit of the first plug and the first socket. The end of the outer ring cover away from the fit side of the unlocking ring is circumferentially provided with several second plugs, and the other end of the second inner ring cover is circumferentially provided with several second sockets. The outer ring cover is connected to the end of the second inner ring cover through the fit of the second plug and the second socket. A third fitting groove is provided in the end of the outer ring cover close to the second inner ring cover, the claw ring is fitted in the third fitting groove, and the end of the second inner ring cover close to the outer ring cover extends into the third fitting groove.

4. The pipe quick connector according to any one of claims 2 or 3, characterized in that: The outer edge of the claw ring is a closed outer ring body with both end faces being flat. The inner edge of the claw ring is an inner ring body inclined toward the central axis of the claw ring. The inner ring body is provided with a plurality of notches in the circumference. The part of the inner ring body located between two adjacent notches forms claws, and the end of the claw close to the center of the claw ring is provided with a card interface.

5. The pipe quick connector according to claim 1, characterized in that: A stepped portion is provided in the middle of the outer ring cover, and the unlocking ring is fitted in the stepped portion. An annular second limiting portion is provided on the outer side of the middle section of the unlocking ring. The internal space of the outer ring cover inside the stepped portion is a movable cavity, and the second limiting portion is located in the movable cavity. The end of the unlocking ring close to the outer shell is provided with an inclined surface that abuts against the claw ring.

6. The pipe quick connector according to claim 5, characterized in that: The bevel climbing structure includes a fixed bevel surface and a dynamic bevel surface. The outer ring cover wall outside the movable cavity is circumferentially provided with several fixed bevel surfaces, and the second limiting portion is provided with several dynamic bevel surfaces. The dynamic bevel surface is beveled and matched with the fixed bevel surface. The two side parts of the fixed bevel surface are the first bevel segments, and the middle part of the fixed bevel surface is the first flat cut segment. Two adjacent fixed bevel surfaces are transitioned through the second flat cut segment provided at the end of the first bevel segment. The two side parts of the dynamic bevel surface are the second bevel segments, and the middle part of the dynamic bevel surface is the third flat cut segment. Two adjacent dynamic bevel surfaces are transitioned through the fourth flat cut segment provided at the end of the second bevel segment.

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