Quick connector
By introducing a guide structure and a limiting clamp into the quick connector, the problem of high-pressure fluid ejection when the pipe plug is not fully locked is solved, and locking in the conductive position is achieved, ensuring safety and reliability.
Patent Information
- Application Number
- CN202520639520.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-10
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-07
AI Technical Summary
When the existing quick coupling is not fully locked in place, high-pressure fluid can easily be ejected, leading to safety hazards.
A quick connector was designed, comprising a tubular body and a switch kit, which, through the cooperation of a guide structure and a limiting clip, ensures locking in the open position to prevent unintended interruption of gas flow.
It effectively prevents unexpected gas interruptions and improves operational safety and reliability.
Smart Images
Figure CN223855121U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a connector, in particular to a quick connector. BACKGROUND
[0002] Many tools use high-pressure fluid as driving power, and a quick connector is usually used to connect the tool and the high-pressure fluid source, thereby achieving the connection and disconnection functions easily and quickly.
[0003] The conventional quick connector releases the clamping of the pipe plug by a sliding sleeve outside the pipe body, thereby achieving quick insertion or disconnection. However, when the pipe plug is inserted into the quick connector, the high-pressure fluid inside the quick connector is simultaneously conducted even if the pipe plug has not been completely clamped and positioned. In addition, after the sliding sleeve is moved to release the clamping of the pipe plug, the pipe plug is directly ejected due to the pressure force of the high-pressure fluid, which can cause damage to personnel and devices, and there is a safety problem to be solved.
[0004] Therefore, it is necessary to provide a novel and advanced quick connector to solve the above problems. SUMMARY
[0005] The main purpose of the present application is to provide a quick connector which can be locked when located in a conducting position to prevent unintended interruption of gas communication.
[0006] To achieve the above purpose, the present application provides a quick connector, comprising: a tubular body, including a first pipe, a second pipe, at least one first side hole, at least one second side hole, at least one through hole and a first guide structure, the first pipe and the second pipe are not communicated and are respectively open at opposite two ends of the tubular body, the at least one first side hole and the at least one second side hole are respectively communicated with the first pipe and the second pipe, and the at least one through hole is communicated with the first pipe; and a switch assembly, which is sleeved on the tubular body and defines a communication space with the tubular body, is movable between a blocking position and a conducting position, and is provided with a second guide structure; wherein one of the first guide structure and the second guide structure includes a guide groove, and the other includes a guide protrusion, the guide protrusion is movable along the guide groove, the guide groove includes a first groove segment and a second groove segment, the first groove segment is elongated in a longitudinal direction from one end of the quick connector to the other end, and the second groove segment extends transversely from the first groove segment, the movement of the guide protrusion relative to the first groove segment can make the switch assembly move to the conducting position, and the movement of the guide protrusion relative to the second groove segment can make the guide groove and the guide protrusion be blocked in the longitudinal direction; when the switch assembly is located in the blocking position, the communication space is communicated with the at least one second side hole and is not communicated with the at least one first side hole, and when the switch assembly is located in the conducting position, the communication space is communicated with the at least one first side hole and the at least one second side hole.
[0007] Preferably, at least one first limiting member is further included, and a springing assembly is further included, the tubular body further includes an inner tube and a limiting sleeve, the inner tube includes the at least one first side hole, the at least one second side hole and at least one through hole, the at least one first limiting member is contained in the at least one through hole, the springing assembly is arranged in the first pipe, the springing assembly is arranged between an inner surface of the first pipe and an inner flange and is movable between a locking position and a releasing position, the switch sleeve is sleeved on the inner tube, the limiting sleeve is sleeved on the inner tube, the limiting sleeve includes an adjacent inner convex portion and an inner concave portion, when the springing assembly is in the locking position, the springing assembly radially blocks the at least one first limiting member on the inner side of the first pipe, and the at least one first limiting member stops the inner convex portion of the limiting sleeve in the longitudinal direction, when the springing assembly is in the releasing position, the springing assembly does not radially block the at least one first limiting member on the inner side of the first pipe, and allows the limiting sleeve to move away from the second pipe.
[0008] Preferably, at least one second limiting member is further included, the inner tube further includes an outer groove, the limiting sleeve further includes at least one through hole, the at least one second limiting member is contained in the at least one through hole, the switch sleeve is further sleeved on the limiting sleeve, when the springing assembly is in the releasing position, the limiting sleeve is movable so that the inner convex portion radially pushes the first limiting member into the first pipe, and the at least one second limiting member and the outer groove are radially opposite to allow the switch sleeve to move towards the conducting position.
[0009] Preferably, the inner tube further includes a reduced section, and the outer groove is arranged in the reduced section.
[0010] Preferably, the first pipe includes a first through section, the second pipe includes a second through section, the radial dimension of the first through section is smaller than the radial dimension of the second through section, and the at least one first side hole and the at least one second side hole are respectively communicated with the first through section and the second through section.
[0011] Preferably, the tubular body further includes an end tube, and the second pipe further includes an inner thread, the end tube is screwed to the inner thread.
[0012] Preferably, the end tube includes a large-diameter inner hole and a small-diameter inner hole, the large-diameter inner hole is communicated between the second pipe and the small-diameter inner hole.
[0013] Preferably, the switch sleeve includes the guide convex, the first guide structure includes the guide groove, and the first groove section and the second groove section are perpendicular.
[0014] Preferably, the tubular body includes a plurality of the first side holes arranged at an equal angular interval, a plurality of the second side holes arranged at an equal angular interval, and a plurality of the through holes arranged at an equal angular interval, the quick connector further includes a plurality of the first limiting members respectively accommodated in the plurality of the through holes; the first pipe includes a first penetrating segment, the second pipe includes a second penetrating segment, a radial dimension of the first penetrating segment is smaller than a radial dimension of the second penetrating segment, the at least one first side hole and the at least one second side hole are respectively communicated with the first penetrating segment and the second penetrating segment; the quick connector further includes an end pipe, the second pipe further includes an internal thread, the end pipe is screwed to the internal thread; the end pipe includes a large-diameter inner hole and a small-diameter inner hole, the large-diameter inner hole is communicated between the second penetrating segment and the small-diameter inner hole; the radial dimension of the second penetrating segment is greater than the radial dimension of the large-diameter inner hole; the switch assembly includes the guide convex, the first guide structure includes the guide slot, the first slot segment and the second slot segment are L-shaped and perpendicular to each other; the quick connector further includes at least one specification color mark.
[0015] Preferably, the tubular body further includes a polygonal segment, the switch assembly is axially stopped by a plurality of corner portions of the polygonal segment relative to one end of the second pipe.
[0016] The utility model discloses the advantages are:
[0017] The utility model provides a quick connector can be locked when being located in the on position, prevent the unexpected interruption gas communication. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the perspective view of an embodiment of the utility model.
[0019] Figure 2 It is the exploded view of an embodiment of the utility model.
[0020] Figures 3 to 5 It is the action schematic diagram of an embodiment of the utility model.
[0021] Figures 6 to 7 It is the schematic diagram of switch assembly of an embodiment of the utility model in a blocking position and an on position.
[0022] Figure 8 It is the schematic diagram of switch assembly of an embodiment of the utility model is stopped. DETAILED DESCRIPTION
[0023] The following only with example explains the possible implementation state of the utility model, but not use to limit the category that the utility model desires to protect, the noun in the text is not limited to the quantity, according to the demand, can also be " multiple " one, the change in quantity is also the range that is desired to protect, and it is stated in advance.
[0024] Please refer to Figures 1 to 8 , which shows an embodiment of the utility model, the utility model discloses a quick connector 1 including a tubular body 10 and a switch set 20.
[0025] The tubular body 10 includes a first pipe 11, a second pipe 12, at least a first side hole 13, at least a second side hole 14, at least a through hole 15 and a first guide structure 16, the first pipe 11 and the second pipe 12 are not communicated and are respectively open at the opposite two ends of the tubular body 10, the at least a first side hole 13 and the at least a second side hole 14 are communicated with the first pipe 11 and the second pipe 12 respectively, the at least a through hole 15 is communicated with the first pipe 11. The switch set 20 is sleeved on the tubular body 10 and defines a communication space S between the tubular body 10, the switch set 20 can be moved between a blocking position ( Figure 3 ) and a conducting position ( Figure 5 ), the switch set 20 is provided with a second guide structure 21. Wherein, one of the first guide structure 16 and the second guide structure 21 includes a guide groove 161, and the other includes a guide convex 211, the guide convex 211 can move along the guide groove 161, the guide groove 161 includes a first groove section 162 and a second groove section 163, the first groove section 162 extends along a longitudinal direction from one end of the quick connector 1 to the other end, the second groove section 163 extends transversely from the first groove section 162, the movement of the guide convex 211 relative to the first groove section 162 can make the switch set 20 move to the conducting position, the movement of the guide convex 211 relative to the second groove section 163 can make the guide groove 161 and the guide convex 211 be blocked in the longitudinal direction ( Figure 7 ). When the switch set 20 is located at the blocking position, the communication space S is communicated with the at least a second side hole 14 and is not communicated with the at least a first side hole 13, when the switch set 20 is located at the conducting position, the communication space S is communicated with the at least a first side hole 13 and the at least a second side hole 14. In this way, when the switch set 20 is located at the conducting position, it can be locked to prevent unintended interruption of gas communication.
[0026] In the embodiment, the quick connector 1 further includes at least a first limiting clamping piece 30 and a spring top assembly 40, the tubular body 10 further includes an inner pipe 17 and a limiting sleeve 18, the inner pipe 17 includes the at least a first side hole 13, the at least a second side hole 14 and at least a through hole 15, the at least a first limiting clamping piece 30 is contained in the at least a through hole 15, the spring top assembly 40 is arranged in the first pipe 11, the spring top assembly 40 is provided for springing between an inner face 111 and an inner flange 112 of the first pipe 11 and can be moved between a locking position ( Figure 3 ) and a release position ( Figure 4The switch assembly 20 is sleeved on the inner pipe 17, and the limiting assembly 18 is sleeved on the inner pipe 17. The limiting assembly 18 comprises an inner protrusion 181 and an inner recess 182. When the ejector assembly 40 is in the locking position, the ejector assembly 40 radially blocks the at least one first limiting piece 30 on the inner side of the first pipe 11, and the at least one first limiting piece 30 blocks the inner protrusion 181 of the limiting assembly 18 in the longitudinal direction. When the ejector assembly 40 is in the releasing position, the ejector assembly 40 does not radially block the at least one first limiting piece 30 on the inner side of the first pipe 11, and allows the limiting assembly 18 to move away from the second pipe 12. In this way, only when the ejector assembly 40 is in the releasing position, the limiting assembly 18 can be released, and the switch assembly 20 can be moved to the conducting position, ensuring the safety of operation.
[0027] Further, the quick connector 1 further comprises at least one second limiting piece 19. The inner pipe 17 further comprises an outer recess 171 and a reduced section 172. The outer recess 171 is arranged on the reduced section 172. The limiting assembly 18 further comprises at least one through hole 183. The at least one second limiting piece 19 is arranged in the at least one through hole 183. The switch assembly 20 is further sleeved on the limiting assembly 18. When the ejector assembly 40 is in the releasing position, the limiting assembly 18 can be moved so that the inner protrusion 181 radially pushes the first limiting piece 30 to protrude into the first pipe 11, and the at least one second limiting piece 19 and the outer recess 171 are radially opposite to allow the switch assembly 20 to move to the conducting position. In this way, only when a pipe plug 100 is inserted into the first pipe 11 and pushes back the ejector assembly 40, the switch assembly 20 can be opened, further improving the safety of operation. Preferably, the quick connector 1 further comprises at least one specification color mark 50. For example, a plurality of color marks 50 are arranged on the limiting assembly 18. Different combinations (same color or different colors) of the plurality of color marks 50 are used to correspond to different specifications, sizes, types, etc., so that appropriate pipe plugs or other corresponding components can be quickly selected.
[0028] In detail, the tubular body 10 includes a plurality of the first side holes 13 arranged at equal intervals, a plurality of the second side holes 14 arranged at equal intervals, and a plurality of the through holes 15 arranged at equal intervals. The quick connector 1 further includes a plurality of the first limiting members 30 respectively arranged in the plurality of the through holes 15, thereby providing a good and reliable limiting effect. The switch assembly 20 includes the guide convex 211, the first guide structure 16 includes the guide slot 161, and the first slot segment 162 and the second slot segment 163 are L-shaped and perpendicular to each other, thereby being capable of definitely limiting the guide convex 211 and preventing the switch assembly 20 from being axially moved at will. The first pipe 11 includes a first penetrating segment 113, the second pipe 12 includes a second penetrating segment 121, the radial dimension of the first penetrating segment 113 is smaller than the radial dimension of the second penetrating segment 121, and the at least one first side hole 13 and the at least one second side hole 14 are respectively communicated with the first penetrating segment 113 and the second penetrating segment 121, thereby facilitating smooth and effective output of gas. The tubular body 10 further includes an end pipe 122, the second pipe 12 further includes an internal thread 114, and the end pipe 122 is screwed to the internal thread 114, thereby facilitating dismounting, replacement, and maintenance. The end pipe 122 includes a large-diameter inner hole 123 and a small-diameter inner hole 124, the large-diameter inner hole 123 is communicated between the second pipe 12 and the small-diameter inner hole 124. The large-diameter inner hole 123 is communicated between the first pipe 11 and the small-diameter inner hole 124, the radial dimension of the second penetrating segment 121 is greater than the radial dimension of the large-diameter inner hole 123, thereby being capable of reducing back pressure of gas output and facilitating output of gas.
[0029] In the embodiment, the tubular body 10 further includes a polygonal segment 125, and the switch assembly 20 is axially blocked relative to one end of the second pipe 12 by a plurality of corner portions 126 of the polygonal segment 125. Therefore, a groove is not additionally formed on the tubular body 10 to embed a limiting member (for example, a C-shaped fastener) as in the prior art, thereby being capable of reducing components, simplifying structure, and facilitating manufacturing and assembly.
[0030] The above describes the preferred embodiment of the utility model and the technical principle used thereby. For those skilled in the art, any equivalent transformation, simple replacement, and the like based on the technical scheme of the utility model without departing from the spirit and scope of the utility model, all belong to the protection scope of the utility model.
Claims
1. A quick connector characterized by, The utility model relates to a quick connector, comprising: a tubular body including a first conduit, a second conduit, at least a first side hole, at least a second side hole, at least a through hole and a first guide structure, the first conduit and the second conduit are not communicated and are respectively open at opposite two ends of the tubular body, the at least a first side hole and the at least a second side hole are respectively communicated with the first conduit and the second conduit, and the at least a through hole is communicated with the first conduit; and a switch assembly sleeved on the tubular body and defining a communication space with the tubular body, movable between a blocking position and a conducting position, provided with a second guide structure; wherein one of the first guide structure and the second guide structure comprises a guide groove, and the other comprises a guide convex, the guide convex is movable along the guide groove, the guide groove comprises a first groove segment and a second groove segment, the first groove segment is elongated in a longitudinal direction from one end to the other end of the quick connector, and the second groove segment extends transversely from the first groove segment, the guide convex is movable relative to the first groove segment to make the switch assembly move to the conducting position, and the guide convex is movable relative to the second groove segment to make the guide groove and the guide convex be blocked in the longitudinal direction; when the switch assembly is located at the blocking position, the communication space is communicated with the at least a second side hole and not communicated with the at least a first side hole, and when the switch assembly is located at the conducting position, the communication space is communicated with the at least a first side hole and the at least a second side hole.
2. The quick coupling of claim 1, wherein, Further comprising at least a first limiting piece and a spring top assembly, the tubular body further comprises an inner pipe and a limiting assembly, the inner pipe comprises the at least a first side hole, the at least a second side hole and at least a through hole, the at least a first limiting piece is contained in the at least a through hole, the spring top assembly is arranged in the first conduit, the spring top assembly is arranged between an inner surface of the first conduit and an inner convex and movable between a locking position and a release position, the switch assembly is sleeved on the inner pipe, the limiting assembly is sleeved on the inner pipe, the limiting assembly comprises adjacent an inner convex part and an inner concave part, when the spring top assembly is located at the locking position, the spring top assembly is radially blocked on the inner side of the first conduit and the at least a first limiting piece is blocked in the longitudinal direction to the inner convex part of the limiting assembly, and when the spring top assembly is located at the release position, the spring top assembly is not radially blocked on the inner side of the first conduit and the at least a first limiting piece is allowed to move in the longitudinal direction to the inner convex part of the limiting assembly.
3. The quick coupling of claim 2, wherein, Further comprising at least a second limiting piece, the inner pipe further comprises an outer groove, the limiting assembly further comprises at least a through hole, the at least a second limiting piece is contained in the at least a through hole, and the switch assembly is further sleeved on the limiting assembly, when the spring top assembly is located at the release position, the limiting assembly is movable to make the inner convex part radially push the first limiting piece into the first conduit and make the at least a second limiting piece and the outer groove be radially opposite to allow the switch assembly to move to the conducting position.
4. The quick coupling of claim 3, wherein, The inner pipe further comprises a reduced section, and the outer groove is arranged in the reduced section.
5. The quick coupling of claim 1, wherein, The first pipe includes a first penetrating section, the second pipe includes a second penetrating section, the first penetrating section has a smaller radial dimension than the second penetrating section, and the at least one first side hole and the at least one second side hole are respectively communicated with the first penetrating section and the second penetrating section.
6. The quick coupling of claim 5, wherein, The tubular body further includes an end pipe, and the second pipe further includes an internal thread, and the end pipe is screwed to the internal thread.
7. The quick coupling of claim 6, wherein, The end pipe includes a large-diameter inner hole and a small-diameter inner hole, and the large-diameter inner hole is communicated between the second penetrating section and the small-diameter inner hole.
8. The quick coupling of claim 1, wherein, The switch assembly includes the guide convex, and the first guide structure includes the guide slot, and the first slot section and the second slot section are perpendicular.
9. The quick coupling of claim 4, wherein, The tubular body includes a plurality of the first side holes arranged at equal intervals, a plurality of the second side holes arranged at equal intervals, and a plurality of the penetrating holes arranged at equal intervals, and the quick connector further includes a plurality of the first limiting members respectively arranged in the plurality of the penetrating holes; the first pipe includes a first penetrating section, the second pipe includes a second penetrating section, the first penetrating section has a smaller radial dimension than the second penetrating section, and the at least one first side hole and the at least one second side hole are respectively communicated with the first penetrating section and the second penetrating section; the quick connector further includes an end pipe, and the second pipe further includes an internal thread, and the end pipe is screwed to the internal thread; the end pipe includes a large-diameter inner hole and a small-diameter inner hole, and the large-diameter inner hole is communicated between the second penetrating section and the small-diameter inner hole; the second penetrating section has a larger radial dimension than the large-diameter inner hole; the switch assembly includes the guide convex, and the first guide structure includes the guide slot, and the first slot section and the second slot section are L-shaped and perpendicular; and the quick connector further includes at least one specification color mark.
10. Quick coupling according to any one of claims 1 to 9, characterized in that The tubular body further includes a polygonal section, and the switch assembly is axially stopped by a plurality of corner portions of the polygonal section relative to one end of the second pipe.