CN109185586B - Female end connector assembly with pressure relief protection function and cooling plate - Google Patents
Female end connector assembly with pressure relief protection function and cooling plate Download PDFInfo
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- CN109185586B CN109185586B CN201811091635.1A CN201811091635A CN109185586B CN 109185586 B CN109185586 B CN 109185586B CN 201811091635 A CN201811091635 A CN 201811091635A CN 109185586 B CN109185586 B CN 109185586B
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- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 239000012530 fluid Substances 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 33
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 14
- 239000011324 bead Substances 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
- F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
Abstract
The utility model relates to a female end fitting assembly and a cooling plate with a pressure relief protection function. The female end connector assembly comprises a female end piston sleeve, a female end valve body spring, a female end ejector rod and a fixed support ring, wherein the female end valve body, the female end valve body spring, the female end ejector rod and the fixed support ring are arranged in a female end channel cavity in the female end piston sleeve; the fixed support ring is fixedly arranged in the female end channel cavity, the rear end of the female end ejector rod is connected to the fixed support ring in a fixed connection mode, and the female end valve body can move back and forth around the female end ejector rod in the female end channel cavity along the axial direction; the fixed connection mode of the rear end of the female end ejector rod relative to the fixed support ring is a fixed connection mode which can be automatically separated when the female end ejector rod receives hydraulic pressure in the female end channel cavity to be larger than or equal to a preset pressure value. The female end connector assembly has an automatic pressure relief protection function, can relieve pressure to protect the cooling plate disclosed by the utility model, and is simple in structure and low in cost.
Description
Technical Field
The utility model belongs to the technical field of quick connectors, and relates to a female end connector assembly of a fluid quick connector with a pressure relief protection function and a cooling plate using the female end connector assembly.
Background
On devices in various fields of rail transit, etc. (for example, on rail vehicles), there are widely various liquid lines (for example, cooling lines, etc.) connected in series between various apparatuses of the device, and therefore, the connection of the liquid lines between the apparatuses is generally equipped with a liquid quick connector through which a port of the cooling line, for example, a cooling plate, is connected with a pipe or other apparatuses to form a fluid passage.
In existing fluid quick connectors, to achieve quick disconnect functionality, they generally include a male connector assembly and a female connector assembly that are adapted to be quickly engaged with one another, and which are designed to be mated with one another. For example, in the quick connector disclosed in the patent application CN201620179878.0 entitled "compact fluid connection element", the front end of the male connector assembly and the front end of the female connector assembly are used to engage with each other; the male end connector assembly and the female end connector assembly are unidirectional connectors, and the male end connector assembly comprises a male end seat sleeve, a male end piston sleeve, a male end valve body and a male end valve body spring which are arranged in a male end channel cavity in the male end piston sleeve; the female end connector assembly comprises a female end piston sleeve, a female end valve body spring and a female end ejector rod, wherein the female end valve body, the female end valve body spring and the female end ejector rod are arranged in a female end channel cavity in the female end piston sleeve; and, the locking assembly such as locking ring, lock bead, etc. for realizing the locking engagement of the male terminal fitting assembly and the female terminal fitting assembly is provided at the female terminal.
When the male end connector assembly is inserted into the female end connector assembly to the right for engagement, the male end piston sleeve enters a female end channel cavity in the female end piston sleeve, so that the female end ejector rod contacts and abuts against the male end valve body to the left, the male end piston sleeve contacts and abuts against the female end valve body to the right, the male end valve body moves leftwards in the male end piston sleeve along the axial direction, the female end valve body moves rightwards in the female end piston sleeve along the axial direction, the sealing of the male end connector assembly and the female end connector assembly is relieved, and fluid communication is realized; simultaneously, the locking bead of the female end is matched with the locking groove on the male end piston sleeve of the male end, and the locking ring covers the locking bead and keeps the locking bead in the locking groove, so that the locking joint of the male end connector assembly and the female end connector assembly is realized.
The fluid quick connector of the above construction requires manual manipulation of the locking ring (e.g., the locking ring is returned toward the rear end to radially release the locking balls to unlock the engagement) both during the engagement and disengagement operations, i.e., manual manipulation of one end of the female connector assembly. In view of the ease of manual operation, it is generally selected that the male end fitting assembly be fixedly attached to a relatively stationary or difficult to carry device (e.g., a cold plate), and that the female end fitting assembly with locking ring be fixedly attached to a relatively small or easy to carry device or hose.
However, the equipment such as the cooling plate where the male end connector assembly is located generally requires that the male end connector assembly has a pressure relief protection function under the condition that the internal hydraulic working condition is abnormal, so that the equipment such as the high-value cooling plate is prevented from being damaged; this is clearly contrary to the sealing performance (tightness between the male piston sleeve and the male valve body) requirements of the male end connector assembly in the separated state, the design of the conventional male end connector assembly is completely difficult to satisfy both the pressure relief protection function and the sealing requirements.
Disclosure of Invention
In order to solve one or more of the above technical problems, the present utility model provides the following technical solutions.
According to one aspect of the present disclosure, a female end fitting assembly is provided that is capable of being joined together with a corresponding male end fitting assembly to form a fluid quick fitting; wherein,
the female end connector assembly comprises a female end piston sleeve, a female end valve body spring, a female end ejector rod and a fixed support ring, wherein the female end valve body, the female end valve body spring, the female end ejector rod and the fixed support ring are arranged in a female end channel cavity in the female end piston sleeve; the fixed support ring is fixedly arranged in the female end channel cavity, the rear end of the female end ejector rod is connected to the fixed support ring in a fixed connection mode, and the female end valve body can move back and forth in the female end channel cavity around the female end ejector rod along the axial direction;
the female valve body is simultaneously in sealing engagement with the front end of the female ejector rod and the female piston sleeve under the condition that the female connector assembly is separated relative to the male connector assembly;
the fixed connection mode of the rear end of the female end ejector rod relative to the fixed support ring is a fixed connection mode capable of automatically separating when the female end ejector rod receives hydraulic pressure in the female end channel cavity to be larger than or equal to a preset pressure value.
In the female terminal assembly of an embodiment, preferably, the fixed connection is a threaded connection.
In the female end connector assembly of an embodiment, preferably, the rear end of the female end ejector rod is provided with a first thread, the fixed supporting ring is provided with a second thread matched with the first thread to realize the threaded connection mode, and by setting one or more of the shape, the strength and the number of the first thread and/or the second thread, the female end ejector rod can be automatically separated from the fixed supporting ring when the hydraulic pressure of the female end channel cavity is greater than or equal to the preset pressure value.
In the female connector assembly of an embodiment, preferably, when the rear end of the female ejector rod is in threaded connection with the fixed support ring, a part of the end surface of the rear end of the female ejector rod abuts against at least the fixed support ring.
In the female end fitting assembly of an embodiment, the female end fitting assembly is preferably mounted on a cooling plate.
In the female end connector assembly of an embodiment, preferably, the male end connector assembly includes a male end seat cover, a male end piston cover, and a male end valve body spring disposed in a male end channel cavity inside the male end piston cover, the male end valve body is connected to the male end piston cover through the male end valve body spring, the male end valve body is capable of moving back and forth in the male end channel cavity along an axial direction, and an annular cavity with an opening at a front end is formed between the male end piston cover and the male end seat cover;
the male end connector assembly further comprises a locking ring, a locking ring spring and a plurality of locking elements, wherein a plurality of locking through holes are formed in the cavity wall of the male end seat sleeve, which corresponds to the annular cavity, the locking ring is sleeved outside the male end seat sleeve and is connected with the male end seat sleeve through the locking ring spring, the locking ring can axially move back and forth on the male end seat sleeve between an advancing position and a retracting position, the locking ring covers the locking elements and radially presses the locking elements into the locking through holes, and the locking ring releases the locking elements in the retracting position;
when the fluid quick connector is in an engaged state, the front end of the male end piston sleeve pushes the front end surface of the female end valve body and stretches into a female end channel cavity of the female end piston sleeve, the female end valve body and the female end ejector rod are separated to form a fluid channel, and the female end valve body spring is in a compressed state; the front end of the female end ejector rod pushes the front end surface of the male end valve body and stretches into a 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 male end valve body spring is in a compressed state; the front end of the female end piston sleeve partially extends into an 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 connecting the male end fitting assembly with the female end fitting assembly.
In the female end fitting assembly of an embodiment, preferably, when the fluid quick connector is in a disconnected state, the front end face of the male piston sleeve and the front end face of the male valve body are flush and sealingly engaged to form a first sealing face axially convex relative to the front end face of the male seat sleeve; the front end face of the female end valve body is flush with the front end face of the female end ejector rod, so that a second sealing surface which is axially concave relative to the front end face of the female end piston sleeve is formed.
In one embodiment of the female end fitting assembly, the female end piston sleeve is preferably configured to guide axial movement of the female end piston sleeve during engagement into the annular cavity.
In the female terminal fitting assembly of an embodiment, preferably, the inner diameter dimension of the front end of the female terminal piston sleeve is equal to the outer diameter dimension of the female terminal piston sleeve, and the outer diameter dimension of the front end of the female terminal piston sleeve is equal to the inner diameter dimension of the male terminal seat sleeve of the portion corresponding to the annular cavity.
According to still another aspect of the present disclosure, there is provided a cooling plate including: one or more female end fitting assemblies as described in any of the above fixedly mounted on the cooling plate.
The fluid quick connector can fixedly install the female end connector assembly on the cooling plate under the condition of not increasing manual operation complexity, has an automatic pressure relief protection function, can relieve pressure and protect the cooling plate of the present disclosure, and is simple in structure and low in cost.
The above features and operation of the present utility model will become more apparent from the following description and the accompanying drawings.
Drawings
The above and other objects and advantages of the present utility model will become more fully apparent from the following detailed description taken in conjunction with the accompanying drawings, in which identical or similar elements are designated by the same reference numerals.
Fig. 1 is a schematic structural view of a male connector assembly of a fluid quick connector in accordance with an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a female end fitting assembly of a fluid quick connector in accordance with an embodiment of the present utility model.
Fig. 3 is a schematic view of a fluid quick connector in an engaged state according to an embodiment of the present utility model.
Detailed Description
For the purposes of brevity and explanation, the principles of the present utility model 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 may be implemented therein, and that any such variations do not depart from the true spirit and scope of the present patent application. Also, in the following description, reference is made to the accompanying drawings that illustrate specific exemplary embodiments. Mechanical and structural modifications may be made to these embodiments without departing from the spirit and scope of the present utility model. Furthermore, while a feature of the utility model may have been disclosed with respect to only one of several implementations/embodiments, such feature may be combined with one or more other features of the other implementations/embodiments, as may be desired and/or advantageous for any given or identifiable function. The following description is, therefore, not to be taken in a limiting sense, and the scope of the present utility model is defined by the appended claims and their equivalents.
The drawings illustrate various components that would be apparent to one of ordinary skill in the art to fully practice the utility model, and the operation of many components would be known and obvious to one of ordinary skill in the art.
Herein, the azimuthal terms "front" and "rear" are defined relative to the engaged orientations of the male and female end connector assemblies and the male end connector assemblies; wherein, for the corresponding male end fitting assembly, the "front" corresponding orientation is the orientation proximate to the female end fitting assembly, and the "rear" corresponding orientation is the orientation distal to the female end fitting assembly; for the female end fitting assembly, the "front" corresponding orientation is the orientation proximate to the male end fitting assembly and the "rear" corresponding orientation is the orientation distal to the male end fitting assembly.
FIG. 1 is a schematic illustration of a male end fitting assembly of a fluid quick connector according to one embodiment of the present utility model; FIG. 2 is a schematic illustration of a female end fitting assembly of a fluid quick connector according to one embodiment of the present utility model; fig. 3 is a schematic view showing a structure of a fluid quick coupler in an engaged state according to an embodiment of the present utility model. The male end fitting assembly 100 of the fluid quick connector 10 of one embodiment of the present utility model has locking ring 151 or other locking element mounted to the cooling plate and the female end fitting assembly 200 mounted to the equipment or tubing at the opposite end of the cooling plate; the fluid quick connector 10 has an engaged state in which the male and female connector assemblies 100 and 200 are engaged with each other and form a fluid passage therein, and a disengaged state in which the male and female connector assemblies 100 and 200 are separated from each other, but their exposed front end surfaces are sealed and form a sealing surface so that the internal liquid does not leak.
In fig. 1 to 3, the central axis 19 is the central axis of the fluid quick connector 10, and is also the central axes of the male connector assembly 100 and the female connector assembly 200, respectively, and the axial direction refers to the direction in which the central axis 19 is located, and the front-rear 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 of fig. 1-3 illustrates a cross-sectional view of certain critical components, and the upper half of the central axis 19 of fig. 1-3 illustrates a perspective view of certain critical components.
As shown in fig. 1 and 3, the male end fitting assembly 100 has a male end sleeve 110 with a relatively large inner diameter; the rear end of the male end socket 110 may be fixedly connected to a liquid path of a certain device or pipeline, for example, by a threaded connection manner, and the rear end 190 of the male end socket 110 has a through hole for the liquid of the liquid path to circulate; the front end of the male end socket 110 is opened, and the male end socket 110 may have a substantially cylindrical shape.
The male connector assembly 100 further has a male piston housing 120, the male piston housing 120 may be generally cylindrical in shape with a male channel cavity 101 formed therein, and a rear end of the male piston housing 120 may be secured to the male seat housing 110 by, for example, a threaded connection. The radial dimension of the male piston sleeve 120 is relatively smaller than that of the male seat sleeve 110, so that an annular cavity 111 with an opening at the front end can be formed between the male piston sleeve 120 and the male seat sleeve 110; as shown in fig. 3, the annular cavity 111 provides for axial insertion of a female end piston sleeve 210 of the female end fitting assembly 200.
The male connector assembly 100 also has a male valve body 130 and a male valve body spring 140 disposed within the male passageway cavity 101 inside the male piston sleeve 120; the male valve body 130 is connected to the male piston sleeve 120 through a male valve body spring 140, for example, a rear end of the male valve body spring 140 abuts against the male piston sleeve 120, and a front end of the male valve body spring 140 abuts against the male valve body 130; the male valve body 130 is axially movable back and forth in the male port cavity 101, i.e., the male valve body 130 may be similarly movable back and forth in the male port cavity 101 as a piston body. When the male valve body 130 moves backward, the male valve body spring 140 is compressed to generate a corresponding rebound force, which can automatically restore the male valve body 130 to an initial position corresponding to the separated 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 adapted to the radial dimension of the front end of the male valve body 130, so that a good sealing effect is achieved when they are mated. In order to improve the sealing effect and prevent liquid leakage, the front end of the male end valve 130 is provided with a sealing ring accommodating groove, and a sealing ring 131 (such as a rubber sealing ring which is not easy to age) is arranged in the sealing ring accommodating groove, so that the sealing performance between the male end valve body 130 and the front end of the male end piston sleeve 120 is improved.
The male end fitting assembly 100 also has a locking assembly including a locking ring 151, a locking ring spring 152, a plurality of locking elements 153; and, a plurality of locking through holes 112 are provided on the cavity wall of the corresponding annular cavity 111 of the male end socket 110, and the size and number of the locking through holes 112 are designed corresponding to those of the locking elements 153, for example, when the locking elements 153 are spherical locking beads, the locking through holes 112 are designed as circular through holes, and when no stop is provided, the locking elements 153 can freely pass through the locking through holes 112 in the radial direction.
The locking ring 151 is fitted over the outer side of the male sleeve 110 and is connected to the male sleeve 110 by a locking ring spring 152. In one embodiment, the locking ring spring 152 is radially located between the inner sidewall of the locking ring 151 and the outer sidewall of the male end sleeve 110, with the front end of the locking ring spring 152 abutting against the spring seat 1511 inside the locking ring 151 and the rear end of the locking ring spring 152 abutting against the spring seat 113 outside the male end sleeve 110.
The locking ring 151 is axially movable back and forth on the male end sleeve 110 between an advanced position in which the locking ring 151 covers and radially presses all the locking elements 153 into the locking through holes 112, respectively, and a retracted position in which the locking ring 151 radially releases the locking elements 153. Generally, the locking ring 151 is in its advanced position, such as the position shown in fig. 1, under the forward force of the locking ring spring 152 without manual intervention; the locking ring 151 may be retracted to the retracted position by manual manipulation.
As further shown in fig. 2 and 3, the female terminal fitting assembly 200 has a female terminal piston sleeve 210, and the female terminal piston sleeve 210 may be generally cylindrical with a female terminal passage cavity 201 formed therein. 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 dimension of the front end of the female end piston sleeve 210 is substantially equal to the outer diameter dimension of the female end piston sleeve 210, and the outer diameter dimension of the front end of the female end piston sleeve 210 is substantially equal to the inner diameter dimension of the male end seat sleeve 110 corresponding to the annular cavity 111, so that the front end of the female end piston sleeve 210 can be conveniently inserted into the annular cavity 111 and perform relative sealing piston movement during the engagement process, which is beneficial to preventing the liquid in the female end channel cavity 201 from flowing out.
In one embodiment, the rearward ends of the female end piston sleeves 210 may be fixedly attached to each other by, for example, threaded attachment to the female end sleeve 260 of the female end connector assembly 200. The rear end 290 of the female sleeve 260 may be fixedly coupled, such as by a threaded connection, to, for example, a cooling plate (not shown), the rear end of the female sleeve 260 may have a throughbore for fluid communication, the female sleeve 210 may be generally cylindrical, the front end of the female sleeve 260 may be open and the female sleeve 210 may be partially nested.
As further shown in fig. 2 and 3, the female end fitting assembly 200 also has a female valve body 220, a female valve body spring 230, a female carrier rod 240, and a fixed support ring 250 disposed within the female end passage cavity 201 of the female end piston sleeve 210. The fixed support ring 250 may be fixedly disposed in the female end channel cavity 201, for example, between the female end sleeve 260 and the rear end of the female end sleeve 210, and the fixed support ring 250 may be simultaneously pressed when the female end sleeve 210 is sleeved into the female end sleeve 260. The female valve body spring 230 is axially disposed, for example, with its rear end abutting the support ring 250 or female seat sleeve 260 and its front end abutting the female valve body 220.
The female end push rod 240 is fixedly disposed in the female end channel cavity 201 along the central axis 19, the female end push rod 240 has a front end, a middle portion and a rear end 243, specifically, the middle portion of the push rod 240 has a cylindrical portion of a constant shape, the front end of the female end push rod 240 is adapted to contact and abut against the male valve body 130 when the male connector assembly 100 is engaged with the female connector assembly 200, the radial dimension of the front end of the female end push rod 240 may be substantially equal to the radial dimension of the front end of the male valve body 130, the front end of the female end push rod 240 may be connected to the middle portion by a portion of gradually reduced diameter, and the rear end 243 of the push rod 240 is fixedly connected to the fixed support ring 250 by means of a screw connection. Illustratively, the rear end 243 of the carrier rod 240 may be machined with a bolt, the center of the fixed support ring 250 may be machined with a threaded hole, and the threaded connection may be achieved between the bolt and the threaded hole.
The female valve body 220 may be, for example, a piston body of an annular structure, and the female valve body 220 may be movable back and forth in the axial direction around the female carrier rod 240 in the female passage chamber 201; specifically, when the fluid quick connector 10 is engaged, the front end surface 221 of the female valve body 220 is pushed back by the front end of the male piston sleeve 120, at which time the female valve body spring 230 is compressed; upon disengagement of the fluid quick connector 10, the spring force of the female valve body spring 230 may move the female valve body 220 forward to the sealing position shown in fig. 2. In this sealing position, the female valve body 220 is simultaneously in sealing engagement with the front end of the female plunger rod 240 and the inner wall of the female piston sleeve 210, and an inwardly projecting stop rim 213 may be provided on the inner wall of the female piston sleeve 210 to prevent the female valve body from continuing to move forward under the spring force of the female valve body spring 230.
In an embodiment, as shown in fig. 2 and 3, a sealing ring mounting groove may be provided at the front end of the female end push rod 240, for mounting a sealing ring 241 between the female end push rod 240 and the female end valve body 220, so as to improve tightness between the female end valve body 220 and before mounting the female end push rod 240; meanwhile, a sealing ring mounting groove may be provided on the inner wall of the female end piston sleeve 210, for mounting the sealing ring 212 between the female end push rod 240 and the female end piston sleeve 210, so as to improve the tightness between the female end valve body 220 and the inner wall of the female end piston sleeve 210. It should be appreciated that in the engaged condition of the fluid quick connector 10 as shown in fig. 3, the seal ring 212 also has the ability to enhance the tightness between the outer wall of the male piston sleeve 120 and the inner wall of the female piston sleeve 210.
The inner diameter of the female valve body 220 may be set to correspond to the outer diameter of the front end of the female plunger rod 240, the outer diameter of the female valve body 220 may be set to correspond to the outer diameter of the front end of the female piston sleeve 210, and the tightness thereof may be improved by controlling the machining accuracy thereof, etc.
To achieve locking of the fluid quick connector 10 in the engaged state, a locking groove 211 is provided on the outer circumferential surface of the female end piston sleeve 210.
With the fluid quick connector 10 in a disengaged condition (as shown in fig. 1 and 2), the forward end face 122 of the male piston sleeve 120 and the forward end face 132 of the male valve body 130 are substantially flush, and the male piston sleeve 120 sealingly engages the male valve body 130 to form a first sealing surface 23 axially outwardly projecting relative to the forward end face of the male seat sleeve 110; correspondingly, the female valve body 220 is urged back to its sealing position by the female valve body spring 230, the female valve body 220 being simultaneously in sealing engagement with the front end of the female plunger rod 240 and the female piston sleeve 210, the front end face 221 of the female valve body 220 being flush with the front end face 240 of the female plunger rod 230, thereby forming the second sealing face 42 axially recessed relative to the front end face of the female piston sleeve 210. In this way, in the disengaged state, both the male end fitting assembly 100 and the female end fitting assembly 200 are capable of achieving a seal.
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 presses the front end surface of the female end valve body 220 leftward and extends into the female end channel cavity 201 of the female end piston sleeve 210, and separates the front end surface 221 of the female end valve body 220 and the front end surface 242 of the female end push rod 230 to form a fluid channel (as shown by a double-headed arrow in fig. 3), at which time the female end valve body spring 230 is in a compressed state; meanwhile, the front end of the female end push rod 240 pushes the front end surface 132 of the male end valve body 130 rightward and extends into the male end channel cavity 101 of the male end piston sleeve 120, and separates the front end surface 122 of the male end piston sleeve 120 and the front end surface 132 of the male end valve body 130 to form a fluid channel, 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 protrudes into the annular cavity 111 between the male end piston sleeve 120 and the male end seat sleeve 110; and, the locking ring 151 is in the advanced position, which presses the locking member 153 into the locking through hole 112 and the locking groove 211 of the female end piston sleeve 210, thereby lockingly connecting the male and female end connector assemblies 100 and 200.
The fluid quick connector 10 of the above embodiment can achieve the fixed mounting of the female connector assembly 200 on the cooling plate, and can also be easily engaged and disengaged, for example, when the locking ring 151 is manually retracted to its retracted position during engagement, the female connector assembly 200 and the male connector assembly 100 are aligned, that is, the first sealing surface 23 and the second sealing surface 42 are aligned and engaged, and then pushed toward each other until the locking member 153 falls into the locking groove 211, the locking ring 151 returns to its advanced position under the spring force of the locking spring 152, and the whole process is simple; at the time of separation, the locking ring 151 may be manually retracted to its retracted position as well, and then the female and male terminal assemblies 200 and 100 are pulled away from each other, with the locking element 153 simultaneously automatically exiting the locking groove 211. Both the above engaging and disengaging operations can be accomplished with one hand.
Also, it will be appreciated that the fixed mounting of the female end fitting assembly 200 to the cooling plate facilitates simple implementation of the pressure relief protection function requirements of the cooling plate (typically the end of the cooling plate is required to have an automatic pressure relief protection function).
In the structure of the existing or the male connector assembly of the present application, in order to realize the sealing engagement between the male valve body 130 and the male piston sleeve 120, the male valve body 130 is limited to be separated from the male piston sleeve 120, that is, is not allowed to be flushed forward under the action of internal high pressure, in the quick connector named as the "quick connector assembly", in chinese patent application No. 201410775061.5, in order to realize the automatic pressure release function of the male end, a pressure release channel, a pressure release spring, a blocking piece and the like are required to be arranged on the male valve body, so that the male valve body becomes extremely complex, and in order to ensure that liquid cannot leak through the pressure release channel under normal use, the processing precision requirement of the male valve body is high, and the manufacturing cost of the male valve body is greatly improved.
By way of comparison, the female end fitting assembly 200 of an embodiment of the present disclosure may simply implement an automatic pressure relief protection function at low cost through a breakable fixed connection between the female end push rod 230 and the fixed support ring 250. Specifically, the threaded connection of the rear end 243 of the female end push rod 240 with respect to the fixed support ring 250 adopts a connection that automatically disengages when the female end push rod 240 is subjected to a hydraulic force F in the female end channel cavity 201 that is greater than or equal to a predetermined pressure value, which may be predetermined, for example, by setting the shape, strength, and/or number of threads of the bolts on the rear end 243 of the female end push rod 240, or by setting the shape, strength, and/or number of threads in the threaded holes on the fixed support ring 250, or by a combination of the above two, the connection strength of the threaded connection between the female end push rod 230 and the fixed support ring 250 may be set.
When the female terminal assembly 200 of the above example is mounted on a cooling plate in a separated state, if the pressure of a liquid flow circuit inside the cooling plate is increased sharply due to abnormal factors such as temperature rise, and the forward pressure F applied to the female terminal push rod 240 is greater than or equal to a predetermined pressure value, the rear end 243 of the female terminal push rod 240 will be separated from the fixed support ring 250, the liquid flow circuit is opened, and liquid can flow out from a gap between the female terminal push rod 240 and the female terminal valve body 220, realizing a pressure relief function, preventing the damage of the expensive cooling plate due to internal explosion.
It will be appreciated that while the female end carrier rod 240 and/or the fixed support ring 250 are susceptible to damage during automatic pressure relief, on the one hand, pressure relief protection generally occurs relatively rarely; on the other hand, the female end carrier rod 240 and/or the fixed support ring 250 may be replaced at a low cost and the female end connector assembly 200 may continue to be used. Therefore, the cost for realizing the pressure relief protection is low.
It should be noted that, in the above description, the manner of fixing the rear end 243 of the female end push rod 240 and the fixed support ring 250 in the female end connector assembly 200 is a threaded connection manner, which is an example, and those skilled in the art will understand that, in the above embodiments, the manner of fixing the rear end 243 of the female end push rod 240 and the fixed support ring 250 may be implemented as other fixing manners, such as an adhesive connection (by determining the strength value of the adhesive connection, the female end push rod is automatically separated when the hydraulic force F in the female end channel cavity 201 is greater than or equal to the predetermined pressure value), and a snap connection (by determining the strength value of the snap connection, the female end push rod is automatically separated when the hydraulic force F in the female end channel cavity 201 is greater than or equal to the predetermined pressure value).
It will be appreciated that the predetermined pressure values described above are adjustable in design variations, such as may be determined based on the amount of pressure that the cooling plate is subjected to, etc.
In an embodiment, when the rear end of the female end ejector rod 240 is screwed with the fixed support ring 250, at least a part of the end surface of the rear end 243 of the female end ejector rod 240 abuts against the fixed support ring 250, for example, a step surface of a surface contact portion of the rear end 243 with the fixed support ring 250, so that the rear end surface of the rear end 243 abuts against the threaded hole of the fixed support ring 250, for example, during a normal engagement process or an engagement state, it is possible to prevent the spring force generated by the male end valve body spring 140 from being transmitted to the threaded connection or the fixed connection through the male end valve body 130 and the female end ejector rod 240, and to reduce or eliminate the adverse effects of breaking the strength of the threaded connection or the fixed connection: for example, the threaded connection or other fixed connection will automatically disengage when subjected to a hydraulic force F in the female end passage chamber 201 that is less than a predetermined pressure value, affecting the proper implementation of the pressure relief protection function.
It should be noted that, as shown in fig. 3, the fluid quick connector 10 of the above embodiment has the advantage that, during the engagement process, the female end piston sleeve 210 is inserted into the annular cavity 111, the annular cavity 111 can guide the female end piston sleeve 210 to move back and forth in a correct direction (for example, an axial direction), the male end piston sleeve 120 is aligned with the female end valve body 220 in the axial direction, and the female end push rod 240 is aligned with the male end valve body 130 in the axial direction, so that the tightness in the engaged state is also better; in the engaged state, the male socket 110 corresponding to the annular cavity 111 can provide protection for key components of the engagement portion (e.g., the female piston sleeve 210, the male piston sleeve 120, the internal male valve body 130, the female stem 240, etc.), and is not easily affected by external impact such as radial impact; in addition, in the engaged state, the female end piston sleeve 210 receives the radial pressure of the locking element 153 toward the center, and the pressure can be partially transmitted to the male end piston sleeve 120 or the female end valve body 220, so that the tightness between the female end piston sleeve 210 and the male end piston sleeve 120/the female end valve body 220 is improved, and the leakage of the liquid is further prevented.
It will be appreciated that the fluid quick connector 10 of an embodiment of the present utility model (e.g., the male connector assembly 100 thereof) may be slightly oversized in the radial direction, but the overall axial dimension thereof does not increase, and the structure remains relatively compact. Moreover, the fluid quick connector 10 of the present utility model is not compromised in other performance aspects, such as good connection reliability, good sealing performance, quick-connect, etc., relative to the prior art disclosed quick connectors.
The above examples primarily illustrate the fluid quick connector 10 of the present utility model. Although only a few embodiments of the present utility model have been described, those skilled in the art will appreciate that the present utility model can be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and the utility model is intended to cover various modifications and substitutions without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. A female end fitting assembly (200), the female end fitting assembly (200) being capable of being joined together with a corresponding male end fitting assembly (100) to form a fluid quick connector (10); it is characterized in that the method comprises the steps of,
the female end connector assembly (200) comprises a female end piston sleeve (210), a female end valve body (220), a female end valve body spring (230), a female end ejector rod (240) and a fixed support ring (250), wherein the female end valve body (220), the female end valve body spring (230), the female end ejector rod (240) and the fixed support ring (250) are arranged in a female end channel cavity (201) in the female end piston sleeve (210); 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, the female end valve body spring (230) is arranged in the female end piston sleeve (210) along the axial direction, and the female end valve body (220) can move back and forth in the female end channel cavity (201) around the female end ejector rod (240) along the axial direction;
the female valve body (220) is simultaneously in sealing engagement with the front end of the female ejector rod (240) and the female piston sleeve (210) with the female connector assembly (200) separated from the male connector assembly (100);
the fixed connection mode of the rear end (243) of the female end ejector rod (240) relative to the fixed support ring (250) is a fixed connection mode which can be automatically separated when the female end ejector rod (240) receives hydraulic pressure in the female end channel cavity (201) to be larger than or equal to a preset pressure value;
wherein the fixed connection mode is a threaded connection mode; when the rear end (243) of the female end ejector rod (240) is in threaded connection with the fixed support ring (250), part of the end surface of the rear end (243) of the female end ejector rod (240) at least abuts against the fixed support ring (250).
2. The female terminal fitting assembly (200) of claim 1, wherein the rear end (243) of the female terminal pin (240) has a first thread, the stationary support ring (250) has a second thread that mates with the first thread to effect the threaded connection, and wherein the female terminal pin (240) is automatically disengageable from the stationary support ring (250) upon receipt of a hydraulic force in the female terminal channel cavity (201) greater than or equal to the predetermined pressure value by providing one or more of the shape, strength, and number of the first and/or second threads.
3. The female terminal assembly (200) of claim 1, wherein the female terminal assembly (200) is mounted on a cooling plate.
4. The female end fitting assembly (200) of claim 1, wherein the male end fitting assembly (100) includes a male end sleeve (110), a male end sleeve (120), and a male end valve body (130) and a male end valve body spring (140) disposed in a male end channel cavity (101) inside the male end sleeve (120), the male end valve body (130) being connected to the male end sleeve (120) by the male end valve body spring (140), the male end valve body (130) being axially movable back and forth in the male end channel cavity (101), the male end piston sleeve (120) and the male end sleeve (110) forming an annular cavity (111) with a front end opening thereof therebetween;
the male end socket assembly (100) further comprises a locking ring (151), a locking ring spring (152) and a plurality of locking elements (153), wherein a plurality of locking through holes (112) are formed in the cavity wall of the male end socket (110) corresponding to the annular cavity (111), the locking ring (151) is sleeved on the outer side of the male end socket (110) and connected with the male end socket (110) through the locking ring spring (152), the locking ring (151) can axially move back and forth on the male end socket (110) between an advancing position and a retracting position, in the advancing position, the locking ring (151) covers the locking elements (153) and radially presses the locking through holes (112), and in the retracting position, the locking ring (151) releases the locking elements (153);
when the fluid quick connector (10) is in an engaged state, the front end of the male end piston sleeve (120) pushes the front end surface (221) of the female end valve body (220) and stretches into the female end channel cavity (201) of the female end piston sleeve (210) and separates the female end valve body (220) and the female end ejector rod (240) to form a fluid channel, and the female end valve body spring (230) is in a compressed state; the front end of the female end ejector rod (240) pushes the front end face (132) of the male end valve body (130) and stretches into the male end channel cavity (101) of the male end piston sleeve (120) to separate the male end piston sleeve (120) from the male end valve body (130) so as to form a fluid channel, and the male end valve body spring (140) is in a compressed state; the front end of the female end piston sleeve (210) partially extends into an annular cavity (111) between the male end piston sleeve (120) and the male end seat sleeve (110); and, the locking ring (151) is in the advanced position and presses the locking element (153) into the locking through hole (112) and the locking groove (211) on the outer circumferential surface of the female end piston sleeve (210) so as to lockingly connect the male end fitting assembly (100) with the female end fitting assembly (200).
5. The female end fitting assembly (200) of claim 4, wherein the forward face (122) of the male piston sleeve (120) and the forward face (132) of the male valve body (130) are flush and sealingly engaged to form a first sealing surface that is axially convex relative to the forward face of the male seat sleeve (110) when the fluid quick connector (10) is in the disconnected state; the front end surface (221) of the female end valve body (220) is flush with the front end surface (242) of the female end ejector rod (240) so as to form a second sealing surface which is axially concave relative to the front end surface of the female end piston sleeve (210).
6. The female end fitting assembly (200) of claim 4, wherein said female end piston sleeve (210) is capable of guiding said female end piston sleeve (210) to move axially during engagement extending into said annular cavity (111).
7. The female end fitting assembly (200) of claim 6, wherein the inner diameter dimension of the forward end of the female end piston sleeve (210) is equal to the outer diameter dimension of the female end piston sleeve (210), the outer diameter dimension of the forward end of the female end piston sleeve (210) being equal to the inner diameter dimension of the male end sleeve (110) corresponding to the portion of the annular cavity (111).
8. A cooling plate, comprising: one or more female end fitting assemblies (200) as claimed in any one of claims 1 to 7 fixedly mounted on the cooling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811091635.1A CN109185586B (en) | 2018-09-19 | 2018-09-19 | Female end connector assembly with pressure relief protection function and cooling plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811091635.1A CN109185586B (en) | 2018-09-19 | 2018-09-19 | Female end connector assembly with pressure relief protection function and cooling plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109185586A CN109185586A (en) | 2019-01-11 |
| CN109185586B true CN109185586B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811091635.1A Active CN109185586B (en) | 2018-09-19 | 2018-09-19 | Female end connector assembly with pressure relief protection function and cooling plate |
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| Country | Link |
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| CN (1) | CN109185586B (en) |
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| CN209245532U (en) * | 2018-09-19 | 2019-08-13 | 上海宝昭新材料科技中心（有限合伙） | A kind of female end joint assembly and coldplate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0265569A1 (en) * | 1986-10-27 | 1988-05-04 | Parker Hannifin Rak | Coupling provided with decompression relief valves |
| CN102989734A (en) * | 2012-11-23 | 2013-03-27 | 上海亿力电器有限公司 | Low pressure maintaining and overflow stop apparatus for high pressure washer |
| CN104048128A (en) * | 2013-03-12 | 2014-09-17 | 史陶比尔法万举 | Female Quick-connect Coupling Element, And A Quick-connect Coupling Incorporating Such An Element |
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| Publication number | Publication date |
|---|---|
| CN109185586A (en) | 2019-01-11 |
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