CN209245531U - Fluid quick connector with locking ring arranged on male end connector assembly - Google Patents

Abstract

The utility model relates to a fluid quick-operation joint of locking ring setting on public end joint subassembly. The utility model discloses a fluid quick-operation joint includes male end joint subassembly and female end joint subassembly, wherein, the male end joint subassembly includes the locking ring, locking ring spring, a plurality of locking components, when the fluid quick-operation joint is in the engaged state, the front end of the female end piston sleeve of the female end joint subassembly partially stretches into the annular cavity between the male end piston sleeve and the male end seat sleeve of the male end joint subassembly; and, the locking ring is in the advanced position and presses the locking elements into the locking through-holes and locking grooves on the outer circumferential surface of the female piston sleeve, thereby lockingly connecting the male and female connector assemblies. The utility model discloses a fluid quick-operation joint can be with female end joint subassembly fixed mounting on the cooling plate under the condition that does not increase manual operation complexity, and joint quality under the joint state is high, the leakproofness is good.

Description

A fluid quick connector with a locking ring arranged on a male end connector assembly

technical field

The utility model relates to a fluid quick connector, in particular to a fluid quick connector in which a locking ring is arranged on a male end connector assembly.

Background technique

On devices in various fields such as rail transit (for example, on rail vehicles), various liquid circuits (such as cooling circuits, etc.) widely exist, which are connected in series between various devices of the device. Therefore, the liquid circuit between devices The connection is usually equipped with a liquid quick connector, for example, the port of the cooling circuit of the cooling plate is connected with a pipeline or other equipment through a liquid quick connector to form a fluid channel.

In order to achieve the function of quick disassembly, the existing fluid quick connectors generally include a male end connector assembly and a female end connector assembly that can realize quick engagement with each other, and they are adaptively designed to realize mutual insertion. For example, in the quick connector disclosed by the utility model patent application number CN201620179878.0 and the name "compact fluid connection element", the front end of the male end connector assembly and the front end of the female end connector assembly are used to engage each other; the male end connector The assembly and the female end joint assembly are both one-way joints. The male end joint assembly includes a male end seat sleeve, a male end piston sleeve, and a male end valve body and a male end set in the male end passage cavity inside the male end piston sleeve. The valve body spring; the female end joint assembly includes a female end piston sleeve, and a female end valve body, a female end valve body spring, and a female end push rod arranged in the female end channel cavity inside the female end piston sleeve; and, A locking ring, a locking bead, etc. for realizing locking engagement of the male end connector assembly and the female end connector assembly are provided at the female end when locking the assembly.

When the male connector assembly is inserted rightward into the female connector assembly for engagement, the male piston sleeve enters the female channel cavity inside the female piston sleeve, causing the female plunger to contact and abut the male valve body to the left , the male-end piston sleeve contacts and presses against the female-end valve body to the right, so that the male-end valve body moves axially to the left inside the male-end piston sleeve, and the female-end valve body moves in the direction of the female-end piston sleeve. The interior moves axially to the right to release the respective seals of the male end connector assembly and the female end connector assembly to achieve fluid communication; at the same time, the locking ball at the female end matches the locking groove on the male end piston sleeve at the male end, and the locking ring covers The locking bead retains the locking bead in the locking groove, thereby achieving locking engagement of the male end connector assembly with the female end connector assembly.

The fluid quick joint of the above structure needs manual manual operation of the locking ring (for example, the locking ring is returned to the rear end to release the locking ball in the radial direction to release the locking of the joint) during the joint and disengagement operations, that is, manual operation is required One end of the female connector assembly. Considering the convenience of manual operation, the male end connector assembly is generally selected to be fixedly connected to relatively fixed or difficult-to-move equipment (such as a cooling plate), and the female end connector assembly with a locking ring is fixedly connected to relatively small or easy-to-move equipment. equipment or hoses.

However, the cooling plate and other equipment where the male end connector assembly is usually required to have a pressure relief protection function in case of abnormal internal hydraulic conditions, so as to prevent damage to high-value cooling plate and other equipment; this is obviously different from The sealing performance (tightness between the male piston sleeve and the male valve body) requirements of the male end joint assembly in the separated state are inconsistent, and the existing design of the male end joint assembly is completely difficult to meet the above pressure relief protection at the same time. Both functional and sealing requirements.

Utility model content

In order to solve one or more of the above technical problems, the utility model provides a novel fluid quick connector.

According to a fluid quick connector disclosed in the utility model, it includes a male end connector assembly and a female end connector assembly, and the male end connector assembly can be joined together with the female end connector assembly; wherein,

The male-end joint assembly includes a male-end seat sleeve, a male-end piston sleeve, and a male-end valve body and a male-end valve body spring arranged in the male-end channel cavity inside the male-end piston sleeve. The valve body is connected to the male end piston sleeve through the spring of the male end valve body, the male end valve body can move axially forward and backward in the channel cavity of the male end, and the male end piston sleeve and the male end An annular cavity with an open front end is formed between the seat covers;

The male end joint assembly also includes a locking ring, a locking ring spring, and a plurality of locking elements, and a plurality of locking through holes are provided on the wall of the male end seat sleeve corresponding to the annular cavity, and the locking ring Sleeved on the outer side of the male end sleeve and connected with the male end sleeve through the locking ring spring, the locking ring can move axially on the male end sleeve between the advanced position and the retracted position In the advanced position, the locking ring covers the locking element and presses it radially into the locking through hole, and in the retracted position, the locking ring releases the locking element;

The female end joint assembly includes a female end piston sleeve, a female end valve body, a female end valve body spring, a female end push rod and a fixed support ring arranged in the female end channel cavity inside the female end piston sleeve; The fixed support ring is fixedly arranged in the channel cavity of the female end, the rear end of the push rod of the female end is connected to the fixed support ring through a fixed connection, and the valve body of the female end can be positioned on the female end. The push rod moves back and forth in the axial direction around the female end in the passage cavity;

When the fluid quick connector is in the engaged state, the front end of the male piston sleeve pushes the front end face of the female valve body and extends into the female passage cavity of the female piston sleeve and makes the female The end valve body and the female end push rod are separated to form a fluid channel, and the spring of the female end valve body is in a compressed state; the front end of the female end push rod pushes the front face of the male end valve body and extends into the In the male end channel cavity of the male end piston sleeve, the male end piston sleeve and the male end valve body are separated to form a fluid channel, and the spring of the male end valve body is in a compressed state; the front end part of the female end piston sleeve protrudes into the annular cavity between the male end piston sleeve and the male end seat sleeve; and, the locking ring is in the advanced position and presses the locking element into the locking through hole and The locking groove on the outer circumferential surface of the female end piston sleeve, thereby lockingly connects the male end joint assembly and the female end joint assembly.

In the fluid quick connector of an embodiment, preferably, when the fluid quick connector is in the disconnected state, the front end surface of the male end piston sleeve is flush with the front end face of the male end valve body and is in sealing engagement so as to form a relative The first sealing surface of the front end surface of the male end seat sleeve axially protrudes; the female end valve body is in sealing engagement with the front end of the female end push rod and the female end piston sleeve at the same time, and the female end valve body The front end surface of the body is flush with the front end surface of the female push rod, thereby forming a second sealing surface which is axially concave relative to the front end surface of the female piston sleeve.

In the fluid quick connector of an embodiment, preferably, the fixed connection method of the rear end of the female-end push rod relative to the fixed support ring is adopted when the female-end push rod is received by the female-end channel cavity. A fixed connection that can be automatically disengaged when the hydraulic pressure is greater than or equal to a predetermined pressure value.

In one embodiment of the fluid quick connector, preferably, the fixed connection is a threaded connection.

In one embodiment of the fluid quick connector, preferably, the rear end of the female push rod has a first thread, and the fixed support ring has a second thread that cooperates with the first thread to realize the threaded connection. Thread, by setting one or more of the shape, strength, and quantity of the first thread and/or the second thread, so as to realize that the hydraulic pressure on the female end push rod in the female end passage cavity is greater than or equal to the specified It can automatically break away from the fixed support ring when the predetermined pressure value is reached.

In the fluid quick connector of an embodiment, preferably, when the rear end of the female push rod is screwed to the fixed support ring, at least part of the end surface of the rear end of the female push rod abuts against the fixed support ring. on the support ring.

In the fluid quick connector of an embodiment, preferably, the female end connector assembly is mounted on a cooling plate.

In the fluid quick connector of an embodiment, preferably, the front end of the male end valve body has a first sealing ring placement groove, and a first sealing ring is placed in the sealing ring placement groove;

The front end of the female push rod is provided with a second seal ring placement groove, and a second seal ring between the female push rod and the female end valve body is placed in the second seal ring placement groove ;

The inner wall of the female end piston sleeve is provided with a third sealing ring placement groove, and a third sealing ring located between the female end push rod and the female end piston sleeve is placed in the third sealing ring installation groove. lock up.

In the fluid quick connector of an embodiment, preferably, during the engaging process of the female end piston sleeve extending into the annular cavity, the annular cavity can guide the female end piston sleeve in the axial direction move.

In the fluid quick connector of an embodiment, preferably, the inner diameter of the front end of the female piston sleeve is equal to the outer diameter of the female piston sleeve, and the outer diameter of the front end of the female piston sleeve is equal to the corresponding The inner diameter of the male end sleeve of the part of the annular cavity.

The fluid quick connector of the present disclosure can fix the female end connector assembly on the cooling plate without increasing the complexity of manual operation, and provides the possibility of low-cost and simple automatic pressure relief protection of the cooling plate, That is to say, the female end joint assembly fixedly installed on the cooling plate can realize the automatic pressure relief protection function at low cost and simply; moreover, the fluid quick connector of the present disclosure is well guided during the joining process, and the male end piston sleeve and the female end The valve body, the push rod at the female end and the valve body at the male end can be easily aligned in the axial direction, so the joint quality is higher and the sealing performance in the joint state is also better.

The above features and operations of the present invention will become more apparent from the following description and accompanying drawings.

Description of drawings

The above and other objects and advantages of the present invention will be more fully understood from the following detailed description in conjunction with the accompanying drawings, wherein the same or similar elements are denoted by the same reference numerals.

Fig. 1 is a schematic structural view of a male end connector assembly of a fluid quick connector according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a female end connector assembly of a fluid quick connector according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a fluid quick connector in a joint state according to an embodiment of the present invention.

Detailed ways

For purposes of brevity and illustration, the principles of the invention are described herein primarily with reference to exemplary embodiments thereof. However, those skilled in the art will readily recognize that the same principles are equally applicable to all types of fluid quick connectors, and that these same principles can be implemented therein, and that any such variations do not depart from the true spirit of the present patent application and range. Moreover, in the following description, reference is made to the accompanying drawings, which illustrate certain exemplary embodiments. Mechanical and structural changes may be made to these embodiments without departing from the spirit and scope of the invention. Furthermore, although a feature of the invention is disclosed in connection with only one of several implementations/embodiments, it may be combined with other features as may be desired and/or advantageous for any given or identified functionality. One or more other features of the implementation/embodiments are combined. Accordingly, the following description should not be taken in a limiting sense, and the scope of the invention is defined by the appended claims and their equivalents.

The accompanying drawings show a number of components for those skilled in the art to fully realize the utility model, and for those skilled in the art, the operations of many components are familiar and obvious.

As used herein, the orientation terms "front" and "rear" are defined with respect to the engaged orientation of the male and female connector assemblies and the pin connector assemblies; where, with respect to the male connector assembly, "front" The corresponding orientation is the orientation close to the female end connector assembly, and the corresponding orientation of "rear" is the orientation away from the female end connector assembly; for the female end connector assembly, the corresponding orientation of "front" is the orientation close to the male end connector assembly, The orientation corresponding to "rear" is the orientation away from the male connector assembly.

Fig. 1 is a schematic structural diagram of a male end connector assembly of a fluid quick connector according to an embodiment of the present invention; Fig. 2 is a structural schematic diagram of a female end connector assembly of a fluid quick connector according to an embodiment of the present invention; Fig. 3 is a schematic structural diagram of a fluid quick connector in a joint state according to an embodiment of the present invention. The male end connector assembly 100 of the fluid quick connector 10 according to an embodiment of the present utility model has elements for locking such as a locking ring 151, which are installed on the cooling plate, and the female end connector assembly 200 is installed on the opposite end of the cooling plate. On equipment or pipelines; the fluid quick connector 10 has an engaged state and a disengaged state. In the engaged state, the male end connector assembly 100 and the female end connector assembly 200 are engaged with each other and form a fluid channel therein. In the disengaged state, the male end connector assembly 100 and receptacle assembly 200 are separated from each other, however, their exposed front faces are sealed and form a sealing surface so that internal liquids cannot leak out.

In FIGS. 1 to 3 , the central axis 19 is the central axis of the fluid quick connector 10 , and is also the central axis of the male end connector assembly 100 and the female end connector assembly 200 respectively. The axial direction refers to the direction in which the central axis 19 is located, front and rear The direction corresponds to the axial direction, and the direction perpendicular to the axial direction corresponds to the radial direction. For ease of understanding, the lower half of the central axis 19 in FIGS. 1 to 3 shows cross-sectional views of some key components, and the upper half of the central axis 19 in FIGS. 1 to 3 shows perspective views of some key components.

As shown in Figures 1 and 3, the male end connector assembly 100 has a male end seat sleeve 110 with a relatively large inner diameter; the rear end of the male end seat sleeve 110 can be fixedly connected to a certain device or pipeline through a threaded connection, for example. On the liquid circuit, the rear end 190 of the male seat 110 has a through hole for the liquid in the liquid circuit; the front end of the male seat 110 is open, and the male seat 110 can be roughly cylindrical.

The male-end joint assembly 100 also has a male-end piston sleeve 120, which can be approximately cylindrical, and has a male-end channel cavity 101 formed inside it, and the rear end of the male-end piston sleeve 120 can be fixed by, for example, threaded connection. on the male end seat cover 110 . The radial dimension of the male end piston sleeve 120 is relatively smaller than the radial dimension of the male end sleeve 110, therefore, an annular cavity 111 with its front end opening can be formed between the male end piston sleeve 120 and the male end sleeve 110; As shown in FIG. 3 , the annular cavity 111 is axially inserted into the female end piston sleeve 210 of the female end connector assembly 200 .

The male end connector assembly 100 also has a male end valve body 130 and a male end valve body spring 140 disposed in the male end passage cavity 101 inside the male end piston sleeve 120; wherein, the male end valve body 130 passes through the male end valve body spring 140 is connected to the male end piston sleeve 120, for example, the rear end of the male end valve body spring 140 is against the male end piston sleeve 120, and the front end of the male end valve body spring 140 is against the male end valve body 130; the male end valve body 130 can In the male end channel cavity 101 , the male end valve body 130 can move forward and backward in the axial direction, that is, the male end valve body 130 can move forward and backward in the male end channel cavity 101 similarly to a piston body. When the male-end valve body 130 moves backward, the male-end valve body spring 140 is compressed to generate a corresponding rebound force, which can make the male-end valve body 130 automatically return to the initial position corresponding to the separation state; in this initial position, As shown in FIG. 1 , the inner diameter of the front end of the male piston sleeve 120 is reduced, and its radial dimension is designed to match the radial dimension of the front end of the male valve body 130 , so as to achieve a good sealing effect when they cooperate. In order to improve the sealing effect and prevent liquid leakage, the front end of the male end valve 130 has a sealing ring placement groove, and a sealing ring 131 (such as a rubber sealing ring that is not easy to age) is placed in the sealing ring placement groove, thereby improving the height of the male end valve body 130. The tightness between the front end and the male end piston sleeve 120.

The male end connector assembly 100 also has a locking assembly, which includes a locking ring 151, a locking ring spring 152, and a plurality of locking elements 153; Through hole 112, the size and quantity of locking through hole 112 are designed correspondingly to the size and quantity of locking element 153. For example, when locking element 153 is a spherical locking ball, locking through hole 112 is designed as a circular through hole. When there is no stopper , the locking element 153 can freely pass through the locking through hole 112 radially.

The locking ring 151 is sleeved on the outer side of the male end sleeve 110 and connected to the male end sleeve 110 through the locking ring spring 152 . In one embodiment, the locking ring spring 152 is radially located between the inner side wall of the locking ring 151 and the outer side wall of the male end sleeve 110, and the front end of the locking ring spring 152 is against the spring seat 1511 inside the locking ring 151 to lock The rear end of the ring spring 152 abuts against the spring seat 113 on the outer side of the male end sleeve 110 .

The locking ring 151 can move back and forth on the male end sleeve 110 in the axial direction between an advanced position and a retracted position. In the advanced position, the locking ring 151 covers all the locking elements 153 and presses them radially into the locking channels respectively. The hole 112 , in the retracted position, the locking ring 151 releases the locking element 153 in the radial direction. Generally, without manual intervention, the locking ring 151 is in its advanced position under the forward force of the locking ring spring 152, such as the position shown in Figure 1; by manually operating the locking ring 151, it can Move it back to the retracted position.

As shown in FIG. 2 and FIG. 3 , the female end joint assembly 200 has a female end piston sleeve 210 . The female end piston sleeve 210 may be substantially cylindrical, and a female end channel cavity 201 is formed inside it. The radial dimension of the female end piston sleeve 210 is greater than the radial dimension of the male end piston sleeve 120. Specifically, the inner diameter of the front end of the female end piston sleeve 210 is substantially equal to the outer diameter of the female end piston sleeve 210, and the female end piston sleeve 210 The outer diameter of the front end of the socket is substantially equal to the inner diameter of the male seat sleeve 110 corresponding to the annular cavity 111, so that, during the joining process, the front end of the female piston sleeve 210 can be easily inserted into the annular cavity 111 and made The movement of the relatively sealed piston is beneficial to prevent the liquid in the channel cavity 201 of the female end from flowing out.

In an embodiment, the rear end of the female piston sleeve 210 can be fixedly installed on the female end seat sleeve 260 of the female end connector assembly 200 , for example, to be connected to each other by means of threaded installation. The rear end 290 of the female end seat cover 260, for example, can be fixedly connected to, for example, a cooling plate (not shown in the figure) by threaded connection. The rear end of the female end seat cover 260 has a through hole for the liquid flow of the liquid circuit. The piston sleeve 210 can be substantially cylindrical, and the front end of the female end seat sleeve 260 is open and can partially cover the female end piston sleeve 210 .

2 and 3, the female end joint assembly 200 also has a female end valve body 220, a female end valve body spring 230, and a female end top that are arranged in the female end passage cavity 201 inside the female end piston sleeve 210. Rod 240 and fixed support ring 250 . Wherein, the fixed support ring 250 can be fixedly arranged in the channel cavity 201 of the female end, for example, be fixed between the rear end of the female end seat sleeve 260 and the female end piston sleeve 210, when the female end piston sleeve 210 is set on the female end seat When it is in the sleeve 260, the fixed support ring 250 can be pressed to live at the same time. The female end valve body spring 230 is arranged axially, for example, its rear end abuts against the support ring 250 or the female end seat sleeve 260 , and its front end abuts against the female end valve body 220 .

The female end push rod 240 is fixedly arranged in the female end channel cavity 201 along the central axis 19, the female end push rod 240 has a front end, a middle part and a rear end 243, specifically, the middle part of the push rod 240 has a cylindrical part with a constant shape , the front end of the female end push rod 240 is used to contact and abut against the male end valve body 130 when the male end joint assembly 100 is engaged with the female end joint assembly 200, and the radial dimension of the front end of the female end push rod 240 may be substantially equal to that of the male end valve body. The radial dimension of the front end of the body 130, the front end of the female push rod 240 can be connected to its middle part through a gradually decreasing diameter part, and the rear end 243 of the push rod 240 is fixedly connected to the fixed support ring 250 by threaded connection. For example, the rear end 243 of the push rod 240 can be processed with a bolt, and the center of the fixed support ring 250 can be processed with a threaded hole, and the above-mentioned threaded connection between the bolt and the bolt hole can be realized.

The female end valve body 220 can be, for example, a ring-shaped piston body, and the female end valve body 220 can move back and forth in the axial direction around the female end push rod 240 in the female end passage cavity 201; specifically, in the fluid quick connector 10 When engaging, the front end surface 221 of the female end valve body 220 is pushed backward by the front end of the male end piston sleeve 120, at this time, the female end valve body spring 230 is compressed; when the fluid quick connector 10 is separated, the female end valve body spring The rebound force of 230 can make the female valve body 220 move forward to the sealing position as shown in FIG. 2 . In this sealing position, the female end valve body 220 is sealingly engaged with the front end of the female end push rod 240 and the inner wall of the female end piston sleeve 210 at the same time, and the inner wall of the female end piston sleeve 210 may be provided with, for example, an inwardly convex retaining edge 213, In order to prevent the female end valve body from continuing to move forward under the rebound force of the female end valve body spring 230 .

In one embodiment, as shown in FIG. 2 and FIG. 3 , the front end of the female push rod 240 can be provided with a seal ring installation groove, which is used to install the seal ring 241 between the female push rod 240 and the female end valve body 220 , to improve the airtightness before the female end valve body 220 and the female end push rod 240 are installed; at the same time, the inner wall of the female end piston sleeve 210 can also be provided with a sealing ring placement groove, which is used to install the female end push rod 240 and the female end The sealing ring 212 between the piston sleeves 210 is used to improve the airtightness between the female end valve body 220 and the inner wall of the female end piston sleeve 210 . It should be understood that, in the engaged state of the fluid quick connector 10 as shown in FIG. 3 , the sealing ring 212 also has the function of improving the airtightness between the outer wall of the male end piston sleeve 120 and the inner wall of the female end piston sleeve 210 .

It should be noted that the inner diameter of the female valve body 220 can be set corresponding to the outer diameter of the front end of the female push rod 240, and the outer diameter of the female valve body 220 can be set corresponding to the outer diameter of the front end of the female piston sleeve 210. The diameter size setting can improve their airtightness by controlling their machining accuracy and so on.

In order to realize the locking of the fluid quick connector 10 in the engaged state, a locking groove 211 is provided on the outer peripheral surface of the female end piston sleeve 210 .

When the fluid quick connector 10 is in a separated state (as shown in Figures 1 and 2), the front end face 122 of the male end piston sleeve 120 is substantially flush with the front end face 132 of the male end valve body 130, and the male end piston sleeve 120 is sealingly engaged with the male end valve body 130, thereby forming a first sealing surface 23 axially outwardly convex relative to the front end face of the male end seat sleeve 110; correspondingly, the female end valve body 220 is pushed back by the female end valve body spring 230 To its sealing position, the female end valve body 220 is in sealing engagement with the front end of the female end push rod 240 and the female end piston sleeve 210 at the same time, the front end surface 221 of the female end valve body 220 is flush with the front end surface 240 of the female end push rod 240, Thus, a second sealing surface 42 that is axially concave relative to the front end surface of the female end piston sleeve 210 is formed. In this way, in the separated state, both the male end connector assembly 100 and the female end connector assembly 200 can achieve sealing.

When the fluid quick connector 10 is in the engaged state (as shown in FIG. 3 ), the front end of the male end piston sleeve 120 pushes the front end surface of the female end valve body 220 to the left and extends into the female end passage cavity 201 of the female end piston sleeve 210 and the front end surface 221 of the female end valve body 220 is separated from the front end surface 242 of the female end push rod 240 to form a fluid channel (as shown by the double-headed arrow in Figure 3 ), at this time, the female end valve body spring 230 is in Compressed state; at the same time, the front end of the female end push rod 240 pushes the front end face 132 of the male end valve body 130 to the right and extends into the male end passage cavity 101 of the male end piston sleeve 120 and makes the front end face of the male end piston sleeve 120 122 and the front end surface 132 of the male end valve body 130 are separated to form a fluid passage, at this time, the male end valve body spring 140 is in a compressed state; and the front end of the female end piston sleeve 210 partially extends into the male end piston sleeve 120 and In the annular cavity 111 between the male end sleeves 110; and, the locking ring 151 is in the advanced position, which presses the locking element 153 into the locking through hole 112 and the locking groove 211 of the female end piston sleeve 210 , thereby lockingly connecting the male end connector assembly 100 to the female end connector assembly 200 .

The fluid quick connector 10 of the above embodiment can realize the fixed installation of the female end connector assembly 200 on the cooling plate, and can also conveniently perform the engagement and separation operations. For example, when engaging, the locking ring 151 can be manually returned to its retraction position, align the female end connector assembly 200 and the male end connector assembly 100, that is, the first sealing surface 23 and the second sealing surface 42 are aligned and engaged, and then push toward each other until the locking element 153 falls into the locking groove 211 , the locking ring 151 will return to the advanced position under the spring force of the locking spring 152, and the whole process is easy to operate; when separating, the locking ring 151 can also be manually returned to its retracted position, and then the female end connector assembly 200 and the male terminal assembly 100 are pulled away from each other, and the locking element 153 automatically leaves the locking groove 211 at the same time. All of the above engaging and disengaging operations can be done with one hand.

Moreover, it will be understood that the fixed installation of the female end joint assembly 200 on the cooling plate is conducive to simply realizing the pressure relief protection function requirement of the cooling plate (usually the end where the cooling plate is located requires an automatic pressure relief protection function).

In the structure of the existing or the male end joint assembly of the present application, in order to realize the sealing engagement between the male end valve body 130 and the male end piston sleeve 120, the male end valve body 130 is restricted from being separated from the male end piston sleeve 120, That is to say, it is not allowed to rush forward under the action of internal high pressure. In the quick connector named "quick connector assembly" with the Chinese patent application number 201410775061.5, in order to realize the automatic pressure relief function of the male end, it is necessary to set a relief valve on the male end valve body. Pressure channels, pressure relief springs, plugging parts, etc. Therefore, the male end valve body becomes extremely complicated, and in order to ensure that the liquid will not leak through the pressure relief channel under normal use, the machining accuracy of the male end valve body is required to be high. The manufacturing cost of the male end valve body is greatly increased.

As a comparison, the female end joint assembly 200 of an embodiment of the present disclosure can realize the automatic pressure relief protection function at low cost and simply through the destructible fixed connection between the female end push rod 240 and the fixed support ring 250 . Specifically, the threaded connection method of the rear end 243 of the female push rod 240 relative to the fixed support ring 250 adopts a connection that is automatically disengaged when the female push rod 240 is subjected to the hydraulic pressure F in the female end passage cavity 201 greater than or equal to a predetermined pressure value. Ways, for example, can predetermine the predetermined pressure value, by setting the shape, strength and/or quantity of the thread of the bolt on the rear end 243 of the female push rod 240, or by fixing the thread in the threaded hole on the support ring 250 The shape, strength and/or quantity, or a combination of the above two methods, sets the connection strength of the threaded connection between the female push rod 240 and the fixed support ring 250 .

When the female end joint assembly 200 of the above example is installed on the cooling plate in a separated state, if the cooling plate causes a sudden increase in the pressure of the liquid flow circuit inside the cooling plate due to abnormal factors such as temperature rise, the female end push rod 240 will be affected. When the forward pressure F is greater than or equal to the predetermined pressure value, the rear end 243 of the female push rod 240 will be separated from the fixed support ring 250, the liquid flow circuit is opened, and the liquid can flow from the female push rod 240 and the female end valve body 220. The gap between them flows out to realize the pressure relief function and prevent the expensive cooling plate from being damaged by internal blasting.

It will be understood that although the female end push rod 240 and/or the fixed support ring 250 are easily damaged during automatic pressure relief, on the one hand, the situation of pressure relief protection generally is relatively rare; on the other hand, the female end push rod 240 And/or the fixed support ring 250 can be replaced at low cost, and the receptacle assembly 200 can continue to be used. Therefore, the cost of realizing pressure relief protection is low.

It should be noted that, when realizing the pressure relief protection of the cooling plate, the fixed connection between the rear end 243 of the female push rod 240 in the female end joint assembly 200 and the fixed support ring 250 is a threaded connection as an example. Yes, those skilled in the art will understand that under the teachings of the above embodiments, in other embodiments, the fixed connection between the rear end 243 of the female end push rod 240 and the fixed support ring 250 can also be realized as, for example, an adhesive connection (By determining the strength value of the adhesive connection, it will automatically disengage when the hydraulic pressure F in the channel cavity 201 of the female end is greater than or equal to the predetermined pressure value), and also for example a snap connection (by determining the strength value of the snap connection, so that It is automatically disengaged when the hydraulic pressure F in the channel cavity 201 of the female end is greater than or equal to a predetermined pressure value) and other fixed connection methods.

It will be understood that the above-mentioned predetermined pressure value can be adjusted according to design changes, for example, it can be determined according to the withstandable pressure of the cooling plate.

In one embodiment, when the rear end of the female push rod 240 is screwed to the fixed support ring 250, at least part of the end surface of the rear end 243 of the female push rod 240 is against the fixed support ring 250, for example, the rear end 243 Part of the stepped surface is in contact with the surface of the fixed support ring 250, and the rear end surface of the rear end 243 is against the threaded hole of the fixed support ring 250. In this way, in the normal engagement process or engagement state, for example, the spring 140 of the male end valve body can be prevented. The spring force will be transmitted to the above-mentioned threaded connection or fixed connection through the male end valve body 130 and the female end push rod 240, reducing damage to the strength of the threaded connection or fixed connection, reducing or eliminating the following negative effects: for example, making the threaded connection Or other fixed connections are also automatically disengaged when the hydraulic pressure F in the female channel chamber 201 is less than a predetermined pressure value, which affects the normal realization of the pressure relief protection function.

It should be noted that the fluid quick connector 10 of the above embodiment also has the following advantages. As shown in FIG. The end piston sleeve 210 moves back and forth in the correct direction (for example, the axial direction), the axial alignment between the male end piston sleeve 120 and the female end valve body 220, and the axial alignment between the female end push rod 240 and the male end valve body 130 The alignment is also better, so that the sealing performance in the joint state is also better; and, in the joint state, the male end seat cover 110 correspondingly forming the annular cavity 111 can secure the key parts of the joint (such as the female end Piston sleeve 210, male end piston sleeve 120, internal male end valve body 130 and female end push rod 240, etc.) provide protection, and are not easily affected by external impacts such as radial impact; and, in the engaged state, the female end The piston sleeve 210 will be subjected to the radial pressure towards the center of the locking element 153, and this pressure can be partially transmitted to the male end piston sleeve 120 or the female end valve body 220, which is beneficial to improve the relationship between the female end piston sleeve 210 and the male end piston sleeve 120/female The tightness of the end valve body 220 further prevents liquid leakage.

It will be understood that the fluid quick connector 10 (such as the male end connector assembly 100 ) of the embodiment of the present invention may have a slightly enlarged size in the radial direction, but the overall size in the axial direction does not increase, and the structure is still relatively compact. Moreover, the fluid quick connector 10 of the embodiment of the utility model does not sacrifice other performances compared with the conventionally disclosed quick connectors, for example, good connection reliability, good sealing performance, and quick connection can be realized.

The above examples mainly illustrate the fluid quick connector 10 of the present invention. Although only some embodiments of the utility model have been described, those skilled in the art should understand that the utility model can be implemented in many other forms without departing from the gist and scope thereof. The examples and implementations shown are therefore to be regarded as illustrative and not restrictive, and the present invention may cover various modification and replacement.

Claims (10)

1. A fluid quick connector (10) having a locking ring (151) disposed on a male end fitting assembly (100) includes a male end fitting assembly (100) and a female end fitting assembly (200), the male end fitting assembly (100) being engageable with the female end fitting assembly (200); it is characterized in that the preparation method is characterized in that,

the male end connector assembly (100) comprises a male end seat sleeve (110), a male end piston sleeve (120), and a male end valve body (130) and a male end valve body spring (140) which are arranged in a male end channel cavity (101) in the male end piston sleeve (120), wherein the male end valve body (130) is connected to the male end piston sleeve (120) through the male end valve body spring (140), the male end valve body (130) can move back and forth in the male end channel cavity (101) along the axial direction, and an annular cavity (111) with an opening at the front end is formed between the male end piston sleeve (120) and the male end seat sleeve (110);

the male end fitting assembly (100) further comprises a locking ring (151), a locking ring spring (152), a plurality of locking elements (153), a plurality of locking through holes (112) being provided on a cavity wall of the male end socket (110) corresponding to the annular cavity (111), the locking ring (151) being fitted outside the male end socket (110) and being connected to the male end socket (110) by the locking ring spring (152), the locking ring (151) being movable axially on the male end socket (110) back and forth between an advanced position, in which the locking ring (151) covers the locking elements (153) and presses them radially into the locking through holes (112), and a retracted position, in which the locking ring (151) releases the locking elements (153);

the female end joint assembly (200) comprises a female end piston sleeve (210), a female end valve body (220) arranged in a female end channel cavity (201) in the female end piston sleeve (210), a female end valve body spring (230), a female end mandril (240) and a fixed support ring (250); the fixed support ring (250) is fixedly arranged in the female end channel cavity (201), the rear end (243) of the female end ejector rod (240) is connected to the fixed support ring (250) in a fixed connection mode, and the female end valve body (220) can move back and forth in the axial direction around the female end ejector rod (240) in the female end channel cavity (201);

when the fluid quick connector (10) is in an engaged state, the front end of the male piston sleeve (120) pushes the front end surface (221) of the female valve body (220) and extends into the female passage cavity (201) of the female piston sleeve (210) to separate the female valve body (220) and the female ejector rod (240) to form a fluid passage, and the female valve body spring (230) is in a compressed state; the front end of the female end mandril (240) pushes the front end surface (132) of the male end valve body (130) and extends into the male end passage cavity (101) of the male end piston sleeve (120) to separate the male end piston sleeve (120) and the male end valve body (130) to form a fluid passage, and the male end valve body spring (140) is in a compressed state; the front end of the female piston sleeve (210) partially extends into the annular cavity (111) between the male piston sleeve (120) and the male socket sleeve (110); and, the locking ring (151) is in the advanced position and presses the locking elements (153) into the locking through-holes (112) and locking grooves (211) on the outer circumferential surface of the female piston sleeve (210) to lockingly connect the male end fitting assembly (100) with the female end fitting assembly (200).

2. The fluid quick connector (10) of claim 1 wherein, when the fluid quick connector (10) is in a disengaged condition, the front face (122) of the male piston sleeve (120) and the front face (132) of the male valve body (130) are flush and sealingly engaged to form a first sealing surface that is axially convex with respect to the front face of the male housing (110); the female valve body (220) is simultaneously in sealing engagement with the front end of the female tappet (240) and the female piston sleeve (210), and the front end surface (221) of the female valve body (220) and the front end surface (242) of the female tappet (240) are flush, thereby forming a second sealing surface which is axially concave relative to the front end surface of the female piston sleeve (210).

3. The fluid quick connector (10) according to claim 1, wherein the rear end (243) of the female end ejector pin (240) is fixedly connected to the stationary support ring (250) in a manner that the rear end can be automatically disengaged when the female end ejector pin (240) is subjected to a hydraulic pressure in the female end passage chamber (201) that is greater than or equal to a predetermined pressure value.

4. The fluid quick connector (10) of claim 3 wherein said fixed connection is a threaded connection.

5. The fluid quick connector (10) according to claim 4, wherein the rear end (243) of the female ejector pin (240) has a first thread, the fixing support ring (250) has a second thread cooperating with the first thread to realize the threaded connection, and one or more of the shape, strength and number of the first thread and/or the second thread are/is arranged to realize that the female ejector pin (240) can be automatically disengaged from the fixing support ring (250) when the hydraulic pressure in the female passage cavity (201) is greater than or equal to the predetermined pressure value.

6. The fluid quick connector (10) according to claim 4, wherein when the rear end (243) of the female end ejector pin (240) is threadedly connected with the fixed support ring (250), a part of the end surface of the rear end (243) of the female end ejector pin (240) abuts at least against the fixed support ring (250).

7. The fluid quick connector (10) of claim 1 wherein said female end connector assembly (200) is mounted on a cold plate.

8. The fluid quick connector (10) of claim 1,

the front end of the male end valve body (130) is provided with a first sealing ring containing groove, and a first sealing ring (131) is placed in the sealing ring containing groove;

a second sealing ring containing groove is formed in the front end of the female end ejector rod (240), and a second sealing ring (241) positioned between the female end ejector rod (240) and the female end valve body (220) is placed in the second sealing ring containing groove;

and a third sealing ring containing groove is formed in the inner wall of the female-end piston sleeve (210), and a third sealing ring (212) positioned between the female-end ejector rod (240) and the female-end piston sleeve (210) is placed in the third sealing ring containing groove.

9. The fluid quick connector (10) of claim 1 wherein said female piston sleeve (210) is capable of guiding said female piston sleeve (210) in axial movement during engagement extending into said annular cavity (111).

10. The fluid quick connector (10) of claim 9, wherein the forward end of the female piston sleeve (210) has an inner diameter dimension equal to an outer diameter dimension of the female piston sleeve (210), and the forward end of the female piston sleeve (210) has an outer diameter dimension equal to an inner diameter dimension of the male socket sleeve (110) corresponding to the portion of the annular cavity (111).