CN209781960U - Quick connector assembly - Google Patents

Abstract

The utility model provides a quick connector subassembly. The quick connector assembly includes: the sensor comprises a sensor body and an insertion part fixed with the sensor body; and a quick connector including an accommodating portion for accommodating the insertion portion. The receptacle comprises a non-cylindrical barrel and the spigot is configured to mate with the barrel of the receptacle such that the spigot can be inserted into the receptacle and movement of the spigot relative to the receptacle in the circumferential direction is limited. The quick connector assembly further includes a limiting mechanism configured to limit movement of the mating part relative to the receiving part in the axial direction. The utility model discloses in, restriction sensor can be realized through the phase-match configuration of grafting portion with the portion of holding for quick-operation connector's rotation. Compare round pin and opening complex anti revolution mechanic in prior art, the utility model discloses an anti revolution mechanic has higher intensity and can be more even bear the revolving force, therefore has higher anti revolution mechanic.

Description

Quick connector assembly

Technical Field

The present invention relates generally to the field of quick connector assembly technology, and specifically to a quick connector assembly including a sensor.

Background

Quick connectors are commonly used for connections between pipes or other components. For example, the quick connector may be applied to liquid and/or vapor lines in a vehicle, and in particular may be used in conjunction with a sensor to detect parameters such as pressure, temperature, etc. of the liquid or vapor in the line.

chinese patent CN1654792A discloses a quick connector assembly comprising a temperature sensor. The quick connector assembly has a plurality of openings in the receiving substrate and a plurality of pins in the temperature sensor, the plurality of openings in the receiving substrate engage the plurality of pins in the temperature sensor to secure the temperature sensor to the receiving substrate. Where the rotation of the sensor relative to the housing substrate is limited by means of pins, which are not too thick for mounting purposes and therefore have a low strength. Therefore, the anti-rotation effect of the fixing mode is weak. In addition, in order to enable each pin of the sensor to uniformly receive the rotational force, it is necessary to make the pin and the opening have high processing accuracy, otherwise the pin may be broken due to the non-uniform rotational force received by each pin.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists among the above-mentioned prior art, provide a quick connector subassembly, this quick connector subassembly's anti revolution mechanic has good anti rotation performance.

To this end, according to an aspect of the present invention, a quick connector assembly is provided.

The quick connector assembly includes: the sensor comprises a sensor body and an insertion part fixed with the sensor body; and a quick connector including an accommodating portion for accommodating the insertion portion. The receptacle includes a non-cylindrical barrel and the spigot is configured to mate with the barrel of the receptacle such that the spigot can be inserted into the receptacle and movement of the spigot relative to the receptacle in a circumferential direction is limited. And, the quick connector assembly further comprises a limiting mechanism configured to limit movement of the mating part relative to the receptacle part in an axial direction to retain the mating part in the receptacle part.

In accordance with the above-described concepts, the present invention may further include any one or more of the following alternatives.

In some alternatives, the barrel of the receptacle includes an arcuate segment and a straight segment connected to each other, an inner peripheral surface of the arcuate segment having a generally C-shaped cross-section.

In some alternatives, an inner circumferential surface of the cylinder of the receiving portion is provided with a guide block or a guide groove extending in an axial direction, and an outer circumferential surface of the socket portion is provided with a corresponding guide groove or guide block to facilitate insertion of the socket portion into the receiving portion in the axial direction.

In some alternatives, the sensor body is integrally formed with the spigot.

in some alternatives, the plug is connected to the sensor body by a snap-fit connection.

In some alternatives, the sensor body further comprises: a flange provided at an outer circumferential surface of the sensor body; and a convex portion provided on an outer peripheral surface of the sensor body and spaced apart from the flange in an axial direction. And the insertion part further comprises: a through hole extending in an axial direction; a stopper disposed on a wall of the through-hole. And the sensor body is adapted to be inserted into the through hole and the flange and the protruding portion of the sensor body are adapted to abut against an axial end portion of the insertion portion and the stopper portion, respectively, so that the axial end portion of the insertion portion and the stopper portion are clamped between the flange and the protruding portion of the sensor body.

In some alternatives, the plug portion is further fixedly connected to the sensor body by welding. In some alternatives, the sensor body is further provided with a welding hole, and the plug portion is correspondingly provided with a welding protrusion. And when the sensor body is clamped with the plug part, the welding projection is inserted into the welding hole so as to be welded.

In some alternatives, the inner peripheral surface of the receptacle is further provided with an annular step for receiving an annular seal.

In some alternatives, the spacing mechanism comprises: a limiting member; a limit opening provided in the cylinder of the accommodating portion; a limit groove disposed on an outer circumferential surface of the insertion part. The limiting piece is suitable for being inserted into the limiting groove of the inserting part through the limiting opening of the accommodating part so as to limit the inserting part to move along the axial direction relative to the accommodating part. In some alternatives, the stop is a substantially U-shaped circlip.

In some alternatives, the circlip includes a substantially U-shaped lateral portion and a retaining portion extending from a free end of the lateral portion in a direction substantially perpendicular to the lateral portion, and the receiving portion includes a retaining groove provided on an outer peripheral surface thereof. And the retaining portion of the circlip is engageable with the retaining groove of the accommodating portion to retain the circlip in the unlocked position.

in some alternatives, the receiving portion further includes a receiving portion provided at an outer peripheral surface of the receiving portion, the retaining portion of the circlip being received in the receiving portion when the circlip is in the locked position.

The utility model discloses in, restriction sensor can be realized through the assorted configuration of grafting portion with the portion of holding for quick-operation coupling's rotation. Compare round pin and opening complex anti revolution mechanic among the prior art, the utility model discloses an anti revolution mechanic has higher intensity and can be more even bear the revolving force, therefore more firm, has higher anti revolution performance. Furthermore, according to the utility model discloses, the sensor can adopt split type configuration to can change the inside configuration of grafting portion with the various sensor bodies of adaptation according to actual need, and then improve the suitability of quick connector's the portion of holding.

Drawings

Other features and advantages of the present invention will be better understood from the following detailed description of alternative embodiments, taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts, and in which:

Fig. 1 is an exploded perspective view of a quick connector assembly according to a first embodiment of the present invention;

FIG. 2 is a perspective view of the quick connector assembly of FIG. 1 during assembly showing the snap spring in an unlocked position;

FIG. 3 is an assembled perspective view of the quick connector assembly of FIG. 1 showing the snap spring in a locked position;

FIG. 4 is a front view of the assembled quick connector assembly of FIG. 3;

3 FIG. 35 3 is 3a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3A 3- 3A 3 in 3 FIG. 3 4 3, 3 wherein 3 the 3 quick 3 connector 3 assembly 3 includes 3a 3 temperature 3 sensor 3; 3

FIG. 6 is a cross-sectional view of another quick connector assembly according to a first embodiment of the present invention, wherein the quick connector assembly includes a pressure sensor;

fig. 7 is an exploded perspective view of a quick connector assembly according to a second embodiment of the present invention;

FIG. 8 is a bottom plan view of the quick connector assembly of FIG. 7 assembled;

3 FIG. 39 3 is 3a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3A 3- 3A 3 in 3 FIG. 3 8 3; 3

FIG. 10 is a cross-sectional view taken along line B-B in FIG. 8;

FIG. 11a is a bottom view of the sensor body and mating part of the quick connector assembly of FIG. 7, showing the sensor body engaged with the mating part;

3 FIG. 3 11 3b 3 is 3a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3A 3- 3A 3 in 3 FIG. 3 11 3a 3; 3

FIG. 11c is a cross-sectional view taken along line B-B in FIG. 11 a;

FIG. 12a is a bottom view of the sensor body and mating part of the quick connector assembly of FIG. 7, showing the sensor body and mating part snapped into place but not welded;

3 FIG. 3 12 3b 3 is 3a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3A 3- 3A 3 in 3 FIG. 3 12 3a 3; 3

FIG. 12c is a cross-sectional view taken along line B-B in FIG. 12 a;

FIG. 13a is a bottom view of the sensor body and mating part of the quick connector assembly of FIG. 7, showing the sensor body and mating part welded together;

3 FIG. 3 13 3b 3 is 3a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3A 3- 3A 3 in 3 FIG. 3 13 3a 3; 3 And

fig. 13c is a cross-sectional view taken along line B-B in fig. 13 a.

Detailed Description

the practice and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention. The description herein of the structural positions of the respective components, such as the directions of upper, lower, top, bottom, etc., is not absolute, but relative. When the respective components are arranged as shown in the drawings, these direction expressions are appropriate, but when the positions of the respective components in the drawings are changed, these direction expressions are changed accordingly.

referring initially to fig. 1, fig. 1 shows a quick connector assembly 1 according to a first embodiment of the present invention. As shown in fig. 1, the quick connector assembly 1 includes a sensor 3 and a quick connector 5, the sensor 3 includes an integrally formed sensor body 7 and a plug portion 9, and the quick connector 5 includes an integrally formed quick connector body 11 and a receiving portion 13.

The quick connector body 11 is a generally L-shaped tube and includes a first section 15 and a second section 17 that are perpendicular to each other. This shape of quick connector is particularly suitable for use in space-constrained locations. However, the angle between the first section 15 and the second section 17 is not limited to 90 °, and may be any other suitable angle, for example, the angle between the first section 15 and the second section 17 may be 180 °, i.e. the quick connector body 11 is a straight tube. Wherein the first section 15 comprises a first connection end 19 and the second section 17 comprises a second connection end 21. In the present embodiment, the first connection end 19 is configured for connection with a flexible pipe and the second connection end 21 is configured for connection with a rigid member. However, the first and second connection ends 19, 21 may be configured for connection with various pipes or other components. In the present embodiment, the receiving portion 13 is provided on the outer circumferential surface of the second section 17 at the connection of the first section 15 and the second section 17. The receiving portion 13 may be provided at other positions on the quick connector body 11 as needed.

According to the inventive concept, the receiving portion 13 comprises a non-cylindrical barrel 23. Wherein the height direction of the cylinder 23 is defined as an axial direction, and a direction around the axial direction is defined as a circumferential direction. The plug part 9 is configured to mate with the cylinder 23 of the receptacle 13 such that the plug part 9 can be inserted into the receptacle 13 and movement of the plug part 9 relative to the receptacle 13 in the circumferential direction is restricted.

specifically, the cylinder 23 of the receptacle 13 includes an arc-shaped section 25 and a straight section 27 connected to each other, and the inner peripheral surface of the arc-shaped section 25 of the receptacle 13 has a substantially C-shaped cross section. The plug part 9 is correspondingly configured to comprise an arc-shaped part 29 and a straight part 31 connected to each other. The arcuate portion 29 of the spigot 9 mates with the arcuate section 25 of the barrel 23 and the straight portion 31 of the spigot 9 mates with the straight section 27 of the barrel 23. That is, the inner peripheral surface of the cylinder 23 of the housing portion 13 and the outer peripheral surface of the socket portion 9 each have a non-circular cross section. Therefore, when the socket 9 of the sensor 3 is inserted into the housing 13, the cylinder 23 of the housing 13 is engaged with the socket 9, so that the movement of the sensor 3 in the circumferential direction with respect to the housing 13 is restricted.

It will be understood by those skilled in the art that the plug part 9 and the receiving part 13 are not limited to the above configuration as long as the rotation of the sensor 3 relative to the receiving part 13 can be restricted by the form fit of the plug part 9 and the receiving part 13. For example, the cross-section of the inner peripheral surface of the cylinder 23 of the housing 13 and the outer peripheral surface of the socket 9 may be elliptical, hexagonal, or the like.

In the present invention, the rotation of the sensor 3 relative to the receptacle 13 is limited by the matching configuration of the plug-in part 9 and the receptacle 13. Compare round pin and opening complex anti revolution mechanic among the prior art, the utility model discloses an anti revolution mechanic has higher intensity and can be more even bear the revolving force, therefore more firm, has higher anti revolution performance.

In order to limit the movement of the plug part 9 in the axial direction relative to the receptacle part 13, the quick connector assembly 1 further comprises a limiting mechanism. This stop gear includes: a clamp spring 33; a limit opening 35, the limit opening 35 being provided in the cylinder 23 of the accommodating portion 13; a limit groove 37, the limit groove 37 being provided on the outer peripheral surface of the insertion part 9. The latch spring 33 can be inserted into the limit groove 37 of the plug part 9 through the limit opening 35 of the accommodating part 13 to limit the movement of the plug part 9 relative to the accommodating part 13 in the axial direction.

In particular, the circlip 33 comprises a transverse portion 39. The transverse portion 39 has a substantially U-shape and comprises a first arm 41 and a pair of second arms 43. The pair of second arms 43 are connected by the first arm 41 and the second arms are substantially perpendicular to the first arm. The circlip 33 further includes a pair of retaining portions 45, the pair of retaining portions 45 extending from free ends 47 of the pair of second arms 43 in a direction substantially perpendicular to the transverse portion 39. Each second arm 43 includes an arcuate central portion 49. A pair of limit openings 35 are provided in the arc-shaped section 25 of the cylinder 23 of the accommodating portion 13, the pair of limit openings 35 being opposed to each other. A stopper groove 37 in the circumferential direction is correspondingly provided on the outer circumferential surface of the socket 9. The width of the stopper opening 35 and the stopper groove 37 is substantially equal to or larger than the diameter of the second arm 43 of the circlip 33.

when the plug part 9 of the sensor 3 is inserted into the receiving part 13 of the quick connector 5, the limit groove 37 of the plug part 9 is aligned with the limit opening 35 of the receiving part 13. The second arm 43 of the circlip 33 may be inserted into the limit groove 37 via the limit opening 35 and the central portion 49 of the second arm 43 engages the circumferential wall 51 of the limit groove 37, thereby limiting the movement of the plug part 9 relative to the receptacle part 13 in the axial direction.

further, the accommodating portion 13 includes a pair of holding grooves 53 provided on the outer circumferential surface of the accommodating portion 13. Each retaining groove 53 is located below a respective limit opening 35 and communicates with the respective limit opening 35. The receptacle 13 further includes a pair of receptacles 57 disposed at the junction of the arcuate section 25 and the straight section 27 of the receptacle 13 and extending outwardly from the outer peripheral surface of the receptacle 13. The receiving portion 57 has a substantially "]" -shaped cross-section.

The retaining portion 45 of the circlip 33 can engage with the retaining groove 53 so that the circlip 33 is retained in the unlocked position. Furthermore, the circlip 33 can be pre-mounted on the quick connector 5 by the retaining groove 53, so that the circlip 33 can be prevented from being lost and quick assembly can be facilitated. The receiving portion 57 can receive the retaining portion 45 of the circlip 33 when the circlip 33 is in the locked position, so that the retaining portion 45 of the circlip 33 is surrounded by the receiving portion 57 to prevent the circlip 33 from being moved out of the locked position by a malfunction or a false touch.

It should be understood that the circlip 33 in the limiting mechanism may be replaced by other members (e.g., a ring-shaped circlip, a clamping member with a claw, etc.) capable of limiting. In addition, the limiting mechanism is not limited to this, and the limitation of the axial movement of the sensor 3 relative to the accommodating portion 13 can also be realized by other suitable mechanisms (for example, a claw, a buckle, a mortise and tenon joint assembly, etc.) by using the principles of plugging and clamping, etc.

Furthermore, the inner circumferential surface of the arc-shaped section 25 of the receptacle 13 may also be provided with guide blocks 59 extending in the axial direction, and the outer circumferential surface of the socket 9 is provided with corresponding guide grooves (not shown) to facilitate insertion of the socket 9 into the receptacle 13 in the axial direction. Alternatively, the guide block may also be provided on the inner surface of the straight section 27 of the receptacle 13. Alternatively, a guide groove may be provided on the inner circumferential surface of the accommodating portion 13, and a corresponding guide block may be provided on the outer circumferential surface of the socket portion 9. The number of guide blocks and guide slots may be any suitable number.

an assembly process of the quick connector assembly 1 according to the first embodiment is described below with reference to fig. 1 to 6.

As shown in fig. 2, the circlip 33 has been pre-mounted on the housing 13, that is, the retaining portion 45 of the circlip 33 engages with the retaining groove 53 of the housing 13 to retain the circlip 33 in the unlocked position. At this time, the second arm 43 of the circlip 33 is not inserted into the limiting groove 37 (see fig. 5 and 6), and the plug part 9 can move in the axial direction relative to the receptacle part 13. In assembly, the plug part 9 of the sensor 3 is first inserted into the receptacle 13 such that the limit groove 37 of the plug part 9 is aligned with the limit opening 35 of the receptacle 13. Then, as shown in fig. 3, the circlip 33 is pushed, the second arm 43 of the circlip 33 is inserted into the stopper groove 37 and the central portion 49 (see fig. 3 and 4) of the second arm 43 engages the circumferential wall 51 (see fig. 1, 5, and 6) of the stopper groove 37, thereby holding the circlip 33 in the locked position. At this time, the movement of the plug portion 9 in the axial direction relative to the housing portion 13 is restricted, and the holding portion 45 is surrounded by the receiving portion 57 so as to avoid the snap spring 33 from being moved out of the locked position by a malfunction or a false touch. Meanwhile, since the inner peripheral surface of the plug portion 9 matches the shape of the inner peripheral surface of the cylinder 23 (see fig. 1) of the housing 13, the plug portion 9 engages with the cylinder 23 of the housing 13, thereby restricting the movement of the sensor 3 relative to the housing 13 in the circumferential direction. Thus, the sensor 3 is fixed in the housing 13 of the quick connector 5, and the sensor 3 and the quick connector 5 are assembled into the quick connector assembly 1.

Furthermore, the quick connector 5 can be assembled with various types of sensors. Fig. 5 and 6 show the assembly of the quick connector 5 with the temperature sensor 3a and the pressure sensor 3b, respectively. As shown in fig. 5 and 6, the sensor body 7 includes a sensing portion 63 located below the insertion portion 9, and an annular seal 65 is provided between a surface of the sensing portion 63 and an inner peripheral surface of the accommodating portion 13 to achieve fluid sealing. Annular seal 65 may be a conventional rubber seal.

the sensing portion 63 may be configured to have different lengths as needed to meet the use requirements of different kinds of sensors. As shown in fig. 5, in order to ensure that the temperature sensor 3a can sense the actual temperature of the fluid in the quick connector 5, the sensing portion 63 of the temperature sensor 3a is dimensioned such that the end 67 of the sensing portion 63 containing the heat sensitive element is located at the confluence point between the first section 15 and the second section 17 of the quick connector 5 when the temperature sensor 3a is fixed in the receptacle 13. As shown in fig. 6, the length of the sensing portion 63 of the pressure sensor 3b may be smaller than that of the sensing portion 63 of the temperature sensor 3a, because the pressure sensor 3b performs pressure sensing using a silicon wafer film, and the end 67 of the sensing portion 63 of the pressure sensor 3b, which includes the silicon wafer film, can sense the actual pressure of the fluid as long as it is in contact with the fluid, without being inserted to the confluence point.

A quick connector assembly according to a second embodiment of the present invention is described below with reference to fig. 7 to 13 c.

as shown in fig. 7, the quick connector assembly according to the second embodiment is similar to the quick connector assembly according to the first embodiment. The quick connector assembly 1 according to the second embodiment also comprises a sensor 3 and a quick connector 5, the sensor 3 comprising a sensor body 7 and a plug part 9, the quick connector 5 comprising an integrally formed quick connector body 11 and a receiving part 13. The receptacle 13 includes a non-cylindrical barrel 23 and the spigot 9 is configured to mate with the barrel 23 of the receptacle 13 such that the spigot 9 can be inserted into the receptacle 13 and movement of the spigot 9 relative to the receptacle 13 in the circumferential direction is restricted. The quick connector assembly 1 further comprises a stop mechanism. This stop gear includes: a clamp spring 33; a limit opening 35, the limit opening 35 being provided in the cylinder 23 of the accommodating portion 13; a limit groove 37, the limit groove 37 being provided on the outer peripheral surface of the insertion part 9. The latch spring 33 can be inserted into the limit groove 37 of the plug part 9 through the limit opening 35 of the accommodating part 13 to limit the movement of the plug part 9 relative to the accommodating part 13 in the axial direction.

thus, the fixing between the plug part 9 of the sensor 3 and the receiving part 13 of the quick connector 5 of the second embodiment is the same as that of the first embodiment.

The second embodiment differs from the first embodiment in that the sensor 3 of the second embodiment is a split sensor, and the insertion portion 9 and the sensor body 7 of the sensor 3 are two members.

the plug-in part 9 of the sensor 3 is connected to the sensor body 7 by a snap connection. Specifically, as shown in fig. 7 and 9, the sensor body 7 includes a flange 69 and a protrusion 71, the flange 69 being provided on an outer peripheral surface of the sensor body 7 and extending in the circumferential direction, the protrusion 71 being provided on the outer peripheral surface of the sensor body 7 and spaced apart from the flange 69 in the axial direction. The insertion part 9 includes a through hole 73 extending in the axial direction and a stopper 75 provided on a wall of the through hole 73 (see fig. 9). The sensor body 7 can be inserted into the through hole 73 so that the flange 69 and the boss 71 of the sensor body 7 abut against the axial end 77 and the stopper 75 of the insertion part 9, respectively, thereby causing the axial end 77 and the stopper 75 of the insertion part 9 to be caught between the flange 69 and the boss 71 of the sensor body 7.

As shown in fig. 7 and fig. 11a to 13c, the insertion part 9 is further provided with a guide groove 61, the guide groove 61 penetrates the insertion part 9 in a direction perpendicular to the axial direction, and the accommodating part 13 is correspondingly provided with a guide block 59. Such a guide groove 61 also facilitates the deformation of the plug part 9 during the insertion of the sensor body 7 into the plug part 9 to locally enlarge the diameter of the through hole. It will be appreciated that the receptacle 13 may be provided without a guide block, with only a recess in the plug part 9 extending through the plug part 9 in a direction perpendicular to the axial direction to facilitate deformation of the plug part 9 during insertion of the sensor body 7. The plug part 9 may be formed from a suitable material, such as a thermoplastic, so that the plug part 9 is elastically deformable.

preferably, as shown in fig. 7 and 10, the insertion part 9 may be further fixedly connected with the sensor body 7 by welding. Specifically, the flange 69 of the sensor body 7 is provided therein with a welding hole 79, and the axial end 77 of the socket 9 is correspondingly provided with a welding projection 81. When the sensor body 7 and the plug 9 are snapped into place, the welding protrusion 81 is inserted into the welding hole 79 for welding. Welding methods include, but are not limited to, ultrasonic welding and laser welding. Alternatively, a welding projection may be provided on the sensor body 7, and a welding hole may be provided on the insertion part 9. It will be appreciated by those skilled in the art that the plug part 9 may be connected to the sensor body 7 by a snap connection only.

Further, as shown in fig. 9, the inner peripheral surface of the accommodating portion 13 is provided with an annular step portion 83, and the upper surface of the annular step portion 83 is inclined with respect to the axial direction. The portion of the sensor body 7 below the flange 69 may be divided into three sections of successively decreasing diameter, namely a first section 64, a second section 66, a third section 68. When the sensor 3 is inserted into the receptacle 13, the annular seal 65 may be received and retained between the annular step 83 and the step surface between the first and second sections 64, 66 to effect a fluid seal between the sensor 3 and the receptacle 13. It is understood that the upper surface of the step portion 83 may be perpendicular to the axial direction.

The assembly process of the quick connector assembly 1 according to the second embodiment is described below with reference to fig. 11a to 13 c.

first, the sensor body 7 and the plug 9 are assembled. Specifically, the sensor body 7 is inserted into the through hole 73 of the plug 9 in the axial direction. The lower part of the projection 71 of the sensor body 7 first abuts the upper part of the stopper 75 of the socket 9. Then, as shown in fig. 11b, when the sensor body 7 is further pushed downward, the insertion part 9 is elastically deformed, so that the width of the guide groove 61 is increased and the diameter of the through hole 73 is locally increased, thereby allowing the protrusion 71 to further move downward relative to the stopper 75. As shown in fig. 12b and 12c, when the projection 71 completely passes over the stopper 75 (i.e., when the projection 71 is located below the stopper 75), the insertion part 9 returns to its original shape, so that the axial end 77 of the insertion part 9 and the stopper 75 are caught between the flange 69 of the sensor body 7 and the projection 71, while the welding projection 81 is also inserted into the welding hole 79. Then, as shown in fig. 13b and 13c, welding is performed to further fixedly connect the plug-in portion 9 to the sensor body 7. Thereby, the sensor body 7 and the plug 9 are assembled into the sensor 3. Then, in the same manner as the first embodiment, the sensor 3 and the quick connector 5 are assembled into the quick connector assembly 1.

by means of the above-described split configuration of the sensor, the internal configuration of the plug portion 9 can be changed as required to fit various sensor bodies, thereby improving the fittability of the receiving portion 13 of the quick connector 5.

The technical content and technical features of the present invention have been disclosed above, but it should be understood that various changes and modifications of the concept disclosed above can be made by those skilled in the art under the inventive concept of the present invention, and all fall within the scope of the present invention. The above description of embodiments is intended to be illustrative, and not restrictive, and the scope of the invention is defined by the appended claims.

Claims (13)

1. A quick connector assembly, comprising:

The sensor comprises a sensor body and an insertion part fixed with the sensor body; and

A quick connector including an accommodating portion for accommodating the insertion portion;

Wherein the receptacle comprises a non-cylindrical barrel and the spigot is configured to mate with the barrel of the receptacle such that the spigot can be inserted into the receptacle and movement of the spigot in a circumferential direction relative to the receptacle is restricted;

And wherein the quick connector assembly further comprises a limiting mechanism configured to limit movement of the mating part relative to the receptacle in an axial direction to retain the mating part in the receptacle.

2. The quick connector assembly of claim 1 wherein said barrel of said receiver includes an arcuate segment and a straight segment connected to each other, an inner peripheral surface of said arcuate segment having a generally C-shaped cross-section.

3. the quick connector assembly according to claim 1, wherein an inner peripheral surface of the cylinder of the receiving portion is provided with a guide block or a guide groove extending in an axial direction, and an outer peripheral surface of the mating portion is provided with a corresponding guide groove or guide block to facilitate insertion of the mating portion into the receiving portion in the axial direction.

4. The quick connector assembly as recited in claim 1, wherein the sensor body is integrally formed with the mating member.

5. The quick connector assembly of claim 1, wherein the mating portion is connected to the sensor body by a snap-fit connection.

6. The quick connector assembly as recited in claim 5, wherein the sensor body further comprises:

a flange provided at an outer circumferential surface of the sensor body; and

A boss provided on an outer peripheral surface of the sensor body and spaced apart from the flange in an axial direction;

and wherein the mating part further comprises:

a through hole extending in an axial direction;

A stopper disposed on a wall of the through hole;

and wherein the sensor body is adapted to be inserted into the through hole and the flange and the boss of the sensor body are adapted to abut against an axial end of the insertion portion and the stopper portion, respectively, so that the axial end of the insertion portion and the stopper portion are clamped between the flange and the boss of the sensor body.

7. The quick connector assembly as recited in claim 5, wherein the mating portion is further fixedly connected to the sensor body by welding.

8. The quick connector assembly as recited in claim 7, wherein the sensor body is further provided with a welding hole and the mating portion is correspondingly provided with a welding projection that is inserted into the welding hole for welding when the sensor body is snapped into engagement with the mating portion.

9. The quick connector assembly as claimed in claim 5, wherein the inner peripheral surface of the receiving portion is provided with an annular step portion for receiving an annular seal.

10. The quick connector assembly as recited in claim 1, wherein the spacing mechanism comprises:

A limiting member;

A limit opening provided in the cylinder of the accommodating portion;

a limit groove arranged on the peripheral surface of the insertion part,

The limiting piece is suitable for being inserted into the limiting groove of the inserting part through the limiting opening of the accommodating part so as to limit the inserting part to move along the axial direction relative to the accommodating part.

11. The quick connector assembly as recited in claim 10, wherein the retainer is a generally U-shaped snap spring.

12. The quick connector assembly as recited in claim 11, wherein the snap spring includes a substantially U-shaped lateral portion and a retaining portion extending from a free end of the lateral portion in a direction substantially perpendicular to the lateral portion, the receiving portion including a retaining groove provided on an outer peripheral surface thereof, the retaining portion of the snap spring being engageable with the retaining groove of the receiving portion to retain the snap spring in the unlocked position.

13. The quick connector assembly as recited in claim 12, wherein the receptacle further comprises a receiving portion disposed at an outer peripheral surface of the receptacle, the retaining portion of the circlip being received in the receiving portion when the circlip is in the locked position.