TWM612771U - Quick coupling - Google Patents

Abstract

This creation is about a quick connector, including: a shell, a valve body, a socket and an airtight ring. The housing includes a connected plug end and a set of connection ends; the valve body is accommodated in the assembly end; the socket is detachably plugged and positioned at the plug end, and the socket includes an axis line , An insertion space and an insertion port, the insertion port for a first ferrule or a second ferrule or a third ferrule to be inserted into the insertion space; the airtight ring is positioned in the insertion space In the socket, the airtight ring includes a first airtight surface facing the insertion port and a second airtight surface facing the axis line, and the second airtight surface is transversely connected to the first airtight surface ; Wherein when the first ferrule is inserted into the socket, the first airtight surface abuts against a first end surface of the first extension of the first ferrule, when the second ferrule or the third When the ferrule is inserted into the socket, the second airtight surface abuts against the side surface of the second ring of the second extension of the second ferrule or the third ring of the third extension of the third ferrule side. The quick connector of this creation can be widely compatible with various types of ferrules.

Description

Quick Connector

This creation is related to quick connectors.

Quick couplings are often used in fluid transmission pipelines. Because they can be quickly connected and disconnected without additional tools for assembly or disassembly, they are widely loved by the industry. A general quick connector includes a first connector and a second connector. The first connector is connected to the upstream pipeline, and the second connector is connected to the downstream pipeline. Among them, the first and second connectors are simultaneously controlled by mutual disconnection and locking mechanisms. The opening and closing of the valve body components determine the flow of fluid.

However, depending on the device used in the application, the shape of the insert core will be different. As a result, the quick connector needs to be replaced with a different model to match. In other words, the versatility of the current quick connector is quite poor, and only one pair can be used. Therefore, it is necessary to provide a novel and advanced airtight ring and a joint assembly using the airtight ring to solve the above-mentioned problems.

The main purpose of this creation is to provide a quick connector that can be widely compatible with various types of ferrules.

In order to achieve the above-mentioned purpose, this creation provides a quick connector, which includes: a housing, a valve body, a socket and an airtight ring. The housing includes a connected plug end and a set of connection ends; the valve body is accommodated in the assembly end; the socket is detachably plugged and positioned at the plug end, and the socket includes an axis line , An insertion space and an insertion port, the insertion space communicates the insertion port and the inside of the housing, the insertion port is for a first ferrule or a second ferrule or a third ferrule to be inserted into the An inserting space, the first ferrule includes a first enlarged portion extending into the inserting space and a first extending portion, the first extending portion is connected to the first enlarged portion extending along the axis line, The size of the first enlarged portion is larger than the size of the first extended portion in the direction perpendicular to the axis line, and the second ferrule includes a second enlarged portion and a second extended portion that extend into the insertion space , The second extension portion is connected to the second extension portion extending along the axis line, the size of the second extension portion is larger than the size of the second extension portion in the direction perpendicular to the axis line, and the third insert The core includes a third enlarged portion extending into the insertion space and a third extending portion, the third extending portion is connected to the third enlarged portion extending along the axis line, and the size of the third enlarged portion is The direction perpendicular to the axis is greater than the size of the third extension. In the direction of the axis, the length of the second extension is greater than the length of the first extension, and the length of the third extension is greater than The length of the second extension; the airtight ring is positioned on the socket in the insertion space, the airtight ring includes a first airtight surface facing the insertion port and a second airtight surface facing the axis Airtight surface, the second airtight surface is transversely connected to the first airtight surface; wherein when the first ferrule is inserted into the socket, the first airtight surface abuts against the first airtight surface of the first ferrule A first end surface of an extension portion, when the second ferrule is inserted into the socket, the second airtight surface abuts against a second ring side surface of the second extension portion of the second ferrule, when the When the third ferrule is inserted into the socket, the second airtight surface abuts against a third ring side surface of the third extension portion of the third ferrule.

The following examples are only used to illustrate the possible implementation of this creation, but they are not intended to limit the scope of protection of this creation.

Please refer to FIGS. 1-7, which show the first embodiment of this creation. The quick connector of this creation includes: a housing 1, a valve body 2, a socket 3, and an airtight ring 4.

The housing 1 includes a connecting end 11 and a set of connecting ends 12, and the valve body 2 is accommodated in the set of connecting ends 12. The socket 3 is detachably inserted and positioned at the socket end 11. The socket 3 includes an axis line 31, an insertion space 32, and an insertion port 33. The insertion space 32 communicates with the insertion port 33 and the housing Inside the body 1, the insertion opening 33 allows a first ferrule 51, a second ferrule 52 or a third ferrule 53 to be inserted into the insertion space 32.

In more detail, the first ferrule 51 includes a first enlarged portion 511 extending into the insertion space 32 and a first extension portion 512, and the first extension portion 512 is connected to extend along the axis line 31 In the first enlarged portion 511, the size of the first enlarged portion 511 is larger than the size of the first extension portion 512 in the direction perpendicular to the axis line 31, and the second ferrule 52 includes an insertion space 32, a second enlarged portion 521 and a second extended portion 522, the second extended portion 522 is connected to the second enlarged portion 521 extending along the axis line 31, and the size of the second enlarged portion 521 is perpendicular to the The direction of the axis line 31 is greater than the size of the second extension 522. The third ferrule 53 includes a third enlarged portion 531 that extends into the insertion space 32 and a third extension 532. The third The extension portion 532 is connected to the third enlarged portion 531 extending along the axis line 31, and the size of the third enlarged portion 531 is larger than the size of the third extension portion 532 in the direction perpendicular to the axis line 31; wherein, In the direction of the axis line 31, the length of the second extension portion 522 is greater than the length of the first extension portion 512, and the length of the third extension portion 532 is greater than the length of the second extension portion 522.

In more detail, the airtight ring 4 is positioned on the socket 3 in the insertion space 32, and the airtight ring 4 includes a first airtight surface 41 facing the insertion port 33 and facing the axis line 31 A second airtight surface 42, the second airtight surface 42 is transversely connected to the first airtight surface 41; wherein when the first ferrule 51 is inserted into the socket 3, the first airtight surface 41 Abutting against a first end surface 513 of the first extension portion 512 of the first ferrule 51, when the second ferrule 52 is inserted into the socket 3, the second airtight surface 42 abuts against the second A second ring side surface 523 of the second extension portion 522 of the ferrule 52. When the third ferrule 53 is inserted into the socket 3, the second airtight surface 42 abuts against the first surface of the third ferrule 53 One of the three extension portions 532 is a third ring side surface 533.

Specifically, the airtight ring 4 can pass through the first airtight surface 41 or the second airtight surface 42 to airtightly seal the first ferrule 51, the second ferrule 52, and the first ferrule in different states. The three ferrules 53 enable the socket 3 to be widely used for various types of ferrules commonly used in practice.

Preferably, the length of the second airtight surface 42 on the axis line 31 is greater than the length of the first airtight surface 41 perpendicular to the axis line 31, so as to provide more contact area to improve airtightness reliability .

It should be particularly noted that the airtight ring 4 of the first embodiment shown in FIGS. 3 to 7 cooperates with the socket 3 to be dedicated to one of the common specifications of the ferrule assembly on the market. Here, another airtight ring 4B and another socket 3B as shown in FIGS. 8 to 11 are specially provided. The combination of the two can be applied to another common specification ferrule set, as shown in FIG. 8, the The airtight ring 4B also has a first airtight surface 41B that is transverse to the axis 31B and a second airtight surface 42B that faces the axis 31B. Its function is the same as that of the first embodiment, and will not be omitted here. To repeat it.

In detail, as shown in FIG. 9, when the first ferrule 51B is inserted into the socket 3B, the first airtight surface 41B abuts against one of the first extension portions 512B of the first ferrule 51B. End surface 513B; as shown in FIG. 10, when the second ferrule 52B is inserted into the socket 3B, the second airtight surface 42B abuts against the second ring side surface of the second extension 522B of the second ferrule 52B 523B; as shown in FIG. 11, when the third ferrule 53B is inserted into the socket 3B, the second airtight surface 42B abuts against a third ring side surface of the third extension 532B of the third ferrule 53B 533B. Similarly, in the direction of the axis 31B, the length of the second extension portion 522B is greater than the length of the first extension portion 512B, and the length of the third extension portion 532B is greater than the length of the second extension portion 522B.

Please refer to the first embodiment of FIGS. 1 to 7 again. The socket 3 further includes a first leaning portion 34 that protrudes from the insertion space 32 transversely to the axis 31 and In the direction of the axis line 31, the first leaning portion 34 is interposed between the airtight ring 4 and the insertion opening 33, and the first leaning portion 34 is in line with the first leaning portion 34 in the direction of the axis line 31 The first enlarged portion 511 of the ferrule 51, the second enlarged portion 521 of the second ferrule 52, and the third enlarged portion 531 of the third ferrule 53 are all overlapped, thereby strengthening the local structure of the socket 3 .

It can be understood that the above-mentioned structure can be applied to the second embodiment, as shown in FIG. 9 to FIG. 11. It is worth mentioning that, as shown in FIG. 9, when the first end surface 513B of the first ferrule 51B abuts against the first airtight surface 41B, the first enlarged portion 511B of the first ferrule 51B abuts at the same time. Leaning against the first leaning portion 34B, the first leaning portion 34B can control the insertion depth of the first ferrule 51B, and enhance the simultaneous movement effect of the first ferrule 51B and the socket 3B.

Preferably, viewed along the direction perpendicular to the axis line 31B, the side of the first leaning portion 34B facing the insertion opening 33B and abutting against the first enlarged portion 511B of the first ferrule 51B is an inclined surface , In order to increase the contact area and provide different radial dimensions for abutment.

Please refer to the first embodiment of FIGS. 1-7 again. The socket 3 further includes a second leaning portion 35. The first leaning portion 34 is interposed between the second leaning portion 35 and the insertion opening 33, and In the direction of the axis line 31, the first leaning portion 34 and the second leaning portion 35 are arranged at intervals to jointly define a receiving groove 36, and the airtight ring 4 is set in the receiving groove 36.

Preferably, in the direction perpendicular to the axis 31, the second leaning portion 35 is higher than the first leaning portion 34, and the airtight ring 4 abuts against the axis in the direction of the axis 31 The second supporting portion 35 can effectively provide a supporting force to the airtight ring 4.

Preferably, the socket 3 further includes an abutting ring surface 37, the abutting ring surface 37 faces the insertion opening 33, and the airtight ring 4 is interposed between the abutting ring surface 37 and the insertion opening 33 , The abutting ring surface 37 and the airtight ring 4 are coaxially arranged, and the inner diameter of the abutting ring surface 37 is smaller than the inner diameter of the airtight ring 4, when the third ferrule 53 penetrates the airtight ring 4 For the tight ring 4, the abutting ring surface 37 is for a third end surface 534 of the third extension portion 532 of the third ferrule 53 to abut, wherein the third end surface 534 is transversely connected to the third ring side surface 533.

In detail, the airtight ring 4 includes a first surface 43 and a second surface 44 opposite to each other in the direction of the axis line 31. A first hole 45 is recessed on the first surface 43. The second surface 44 is recessed with a second hole portion 46, the diameter of the first hole portion 45 is larger than that of the second hole portion 46, and the second hole portion 46 is completely connected to the first hole portion 45; The first airtight surface 41 is the bottom wall of the first hole 45, and the second airtight surface 42 is the inner ring wall of the second hole 46. In the first embodiment, the ratio of the diameter of the second hole 46 to the diameter of the first hole 45 is between 0.6 and 0.9.

Preferably, the airtight ring 4 is further recessed with a ring groove 47, which provides a margin space for the force deformation of the airtight ring 4, so that the airtight ring 4 may have better deformability. In the first embodiment, the annular groove 47 is formed on the second surface 44.

In more detail, in a longitudinal section, the ratio of the width of the annular groove 47 to the diameter of the second hole 46 on the vertical axis 31 is between 0.05 and 0.1; From a cross-sectional view, on the axis line 31, the ratio of the depth of the ring groove 47 to the thickness of the airtight ring 4 is between 0.15 and 0.2.

It is worth mentioning that the quick connector further includes a button member 7 and an outer sleeve 13. The button member 7 protrudes with a stop 71, and the socket 3 radially protrudes from two flanges 72, the two flanges 72 is arranged at intervals, the outer sleeve 13 is screwed on the plug terminal 11, the socket 3 can move relative to the outer sleeve 13 toward the assembly end 12, and with the difference in the amount of movement of the socket 3, the stop 71 It can selectively engage and position with one of the flanges 72 to meet different usage requirements.

For example, but not limited to, the first ferrule 51B of the second embodiment is taken as the above-mentioned operation demonstration, as shown in FIGS. 12 to 14: FIG. 12 is a state where the first ferrule 51B has not been positioned in the socket 3B. 13 is the positioning state of the first ferrule 51B inserted into the socket 3B in the first stage. The first ferrule 51B moves a first distance relative to the outer sleeve 13B. At this time, the stop portion 71B of the button member 7B and a flange 72B block each other in positioning. FIG. 14 shows the positioning state of the first ferrule 51B inserted into the socket 3B in the second stage. The first ferrule 51B moves a second distance relative to the outer sleeve 13B. At this time, the button member The stop portion 71B of 7B and the other flange 72B stop and locate each other. It can be understood that the above-mentioned two-stage plug-in manner can also be applied to the first embodiment.

1: shell 11: Socket end 12: Assembling end 13, 13B: Outer kit 2: Valve body 3, 3B: socket 31, 31B: axis line 32: Insertion space 33, 33B: Insertion port 34, 34B: The first part 35: second back 36: Tolerance 37: against the torus 4, 4B: Air tight ring 41, 41B: The first airtight surface 42, 42B: The second airtight surface 43: first side 44: second side 45: The first hole 46: second hole 47: ring groove 51, 51B: the first ferrule 511, 511B: The first expansion part 512, 512B: first extension 513, 513B: first end face 52, 52B: second ferrule 521: Second Enlargement Department 522, 522B: second extension 523, 523B: side of the second ring 53, 53B: third ferrule 531: Third Enlargement Department 532, 532B: third extension 533, 533B: Side of the third ring 534: third end face 7, 7B: Button pieces 71, 71B: stop 72, 72B: flange

Figure 1 is a cross-sectional view of the quick connector of the first embodiment of the creation. Figure 2 is an exploded view of Figure 1. Figure 3 is a cross-sectional view of the airtight ring of the first embodiment of the creation. Figure 4 is a three-dimensional view of the airtight ring of the first embodiment of the creation. Figures 5 to 7 are combined diagrams of the socket, airtight ring and different ferrules of the first embodiment of the creation. Figure 8 is a cross-sectional view of the airtight ring of the second embodiment of the creation. Figures 9 to 11 are combined diagrams of the socket, airtight ring and different ferrules of the second embodiment of the creation. Figures 12 to 14 are schematic diagrams of different insertion states of the ferrule and the housing of the second embodiment of the creation.

1: shell

11: Socket end

12: Assembling end

13: Outer kit

2: Valve body

3: socket

32: Insertion space

34: The first part

35: second back

36: Tolerance

4: airtight ring

7: Button pieces

71: Block

72: flange

Claims (10)

A quick connector, including: A housing, including a connected plug terminal and a set of terminals; A valve body is accommodated at the end of the assembly; A socket, detachably inserted and positioned at the insertion end, includes an axis line, an insertion space, and an insertion port. The insertion space communicates with the insertion port and the inside of the housing, and the insertion port is for a first A ferrule or a second ferrule or a third ferrule is inserted into the insertion space, and the first ferrule includes a first enlarged portion and a first extension portion that extend into the insertion space, The first extension portion is connected to the first extension portion extending along the axis line, the size of the first extension portion is larger than the size of the first extension portion in the direction perpendicular to the axis line, and the second ferrule It includes a second enlarged portion extending into the insertion space and a second extending portion, the second extending portion is connected to the second enlarged portion extending along the axis line, and the size of the second enlarged portion is vertical The direction of the axis line is larger than the size of the second extension part, the third ferrule includes a third extension part extending into the insertion space and a third extension part, the third extension part is along the axis The center line is extendedly connected to the third enlarged portion, and the size of the third enlarged portion is larger than the size of the third extension portion in the direction perpendicular to the axis center line. In the direction of the axis center line, the second extension The length of the portion is greater than the length of the first extension, and the length of the third extension is greater than the length of the second extension; and An airtight ring positioned on the socket in the insertion space, including a first airtight surface facing the insertion port and a second airtight surface facing the axis line, the second airtight surface being transversely Connect the first airtight surface; Wherein, when the first ferrule is inserted into the socket, the first airtight surface abuts against a first end surface of the first extension of the first ferrule, and when the second ferrule is inserted into the socket When plugged into the socket, the second airtight surface abuts against a second ring side surface of the second extension of the second ferrule, and when the third ferrule is inserted into the socket, the second airtight surface abuts On a third ring side surface of the third extension part of the third ferrule. The quick connector according to claim 1, wherein the socket further includes a first leaning portion, and the first leaning portion protrudes from the insertion space transversely to the axis line, and in the direction of the axis line, the The first leaning portion is between the airtight ring and the insertion port, and the first leaning portion is connected to the first enlarged portion of the first ferrule and the second ferrule in the direction of the axis line Both the second enlarged portion and the third enlarged portion of the third ferrule are in an overlapping configuration. The quick connector according to claim 2, wherein when the first end surface of the first ferrule abuts against the first airtight surface, the first enlarged portion of the first ferrule abuts against the first abutment at the same time unit. The quick connector according to claim 3, wherein when viewed in a direction perpendicular to the axis line, the side of the first leaning portion facing the insertion port and abutting against the first enlarged portion of the first ferrule is For inclined surface. The quick connector according to claim 2, wherein the socket further includes a second leaning portion, and the first leaning portion is interposed between the second leaning portion and the insertion port in the direction of the axis line, the The first leaning part and the second leaning part are arranged at intervals to jointly form a container, and the airtight ring is set in the container. The quick connector according to claim 5, wherein in the direction perpendicular to the axis line, the second leaning part is higher than the first leaning part, and the airtight ring abuts in the direction of the axis line In the second leaning part. The quick connector according to claim 1, wherein the socket further comprises an abutment ring surface, the abutment ring surface faces the insertion port, the airtight ring is between the abutment ring surface and the insertion port, the The abutting ring surface and the airtight ring are arranged coaxially, and the inner diameter of the abutting ring surface is smaller than the inner diameter of the airtight ring. When the third ferrule passes through the airtight ring, the abutting ring The third end surface of the third extension portion of the third ferrule is pressed against by a third end surface, wherein the third end surface is transversely connected to the side surface of the third ring. The quick connector according to claim 1, wherein the airtight ring is further recessed with a ring groove, and the ring groove provides a margin space for the force deformation of the airtight ring. The quick connector according to any one of claims 1 to 8, wherein the airtight ring includes a first surface and a second surface opposite to each other in the direction of the axis line, and the first surface is recessed There is a first hole portion, a second hole portion is recessed on the second surface, the diameter of the first hole portion is larger than that of the second hole portion, and the second hole portion completely communicates with the first hole portion; wherein, The first airtight surface is the bottom wall of the first hole, and the second airtight surface is the inner ring wall of the second hole. The quick connector according to claim 6, wherein the socket further comprises an abutting ring surface, the abutting ring surface faces the insertion opening, the airtight ring is interposed between the abutting ring surface and the insertion opening, the The abutting ring surface and the airtight ring are arranged coaxially, and the inner diameter of the abutting ring surface is smaller than the inner diameter of the airtight ring. When the third ferrule passes through the airtight ring, the abutting ring The third end face of the third extension portion of the third ferrule is pressed against by a third end face, wherein the third end face is transversely connected to the side surface of the third ring; the airtight ring is further recessed with a ring groove, the ring recess The groove provides a margin space for the force deformation of the airtight ring; the airtight ring includes a first surface and a second surface opposite to each other in the direction of the axis line, and a first surface is recessed on the first surface A hole portion is recessed on the second surface with a second hole portion, the diameter of the first hole portion is larger than that of the second hole portion, and the second hole portion is completely connected to the first hole portion; wherein, the first hole portion The airtight surface is the bottom wall of the first hole, and the second airtight surface is the inner ring wall of the second hole. Viewed from a longitudinal section, on the axis perpendicular to the axis, the width of the ring groove is equal to The ratio of the diameter of the second hole is between 0.05 and 0.1; in the longitudinal section, on the axis line, the ratio of the depth of the ring groove to the thickness of the airtight ring is between 0.15 and 0.2 The ratio of the aperture of the second hole to the aperture of the first hole is between 0.6 to 0.9; the length of the second airtight surface on the axis line is greater than that of the first airtight surface in the vertical The length of the axis line; the ring groove is provided on the second surface; the quick connector further includes a button member and an outer sleeve, the button member protrudes with a stop part, and the socket is radially projected on the two protrusions Rim, the two flanges are arranged at intervals, the outer sleeve is screwed on the plug end, the socket can move relative to the outer sleeve toward the assembly end and approach, as the amount of movement of the socket is different, the stop can be selected Sexually and one of the flanges is locked against each other for positioning.

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