CN110792863A

CN110792863A - Direct-insertion type steel ball self-locking fluid connector

Info

Publication number: CN110792863A
Application number: CN201911117787.9A
Authority: CN
Inventors: 蒋于良; 裴敏
Original assignee: DANYANG YUQIAO PRECISION ELEMENT Co Ltd
Current assignee: DANYANG YUQIAO PRECISION ELEMENT Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-02-14

Abstract

The invention relates to the field of fluid connectors, in particular to a direct-insertion type steel ball self-locking fluid connector which comprises a male plug (1) and a female plug (2), wherein a steel ball limiting groove (103-1) is arranged on a male plug shell (103), the bottom of the section of the steel ball limiting groove (103-1) is a straight line, the extension parts at two ends of the straight line are oblique lines, the whole section is an external opening section, a second spring (202) is arranged between an outer shell threaded sleeve (201) and an outer shell spring sleeve (203), and a plurality of steel balls (204) are arranged in the circumferential direction close to the end part of an inner shell (209). Realize that the singlehanded quick access is public female plug, also can realize simultaneously public female plug contains when high-pressure fluid, still carries out online operation's effect.

Description

Direct-insertion type steel ball self-locking fluid connector

Technical Field

The invention relates to the field of fluid connectors, in particular to an in-line steel ball self-locking fluid connector.

Background

The fluid connector is used as an important component in a liquid cooling system, the main function of the fluid connector is to realize the quick on-off of fluid passages such as pipelines and cold plates, the debugging and the maintenance of equipment are convenient, and especially for the occasions requiring repeated disassembly and assembly and repeated debugging, the quick on-off of the fluid connector has important influence on the debugging and the maintenance efficiency of the assembly. The locking modes of the current commonly used fluid connector comprise a bayonet type locking mode, a steel ball locking mode and a clamping flap locking mode, the operating force is large in the inserting and closing process of the locking modes, the operation hand feeling is not good under the condition that the operation space is insufficient, and especially under some special environments, if the self-locking function cannot be realized, the operation is difficult to realize.

Disclosure of Invention

In view of the above-mentioned problems, an object of the present invention is to provide a direct-insertion type steel ball self-locking fluid connector, which is convenient and fast to use, and can lock the steel ball by itself without any action of getting out of the position of the steel ball before the opposite insertion by using a steel ball locking structure.

The technical scheme of the invention is realized by the following modes: a direct-insertion type steel ball self-locking fluid connector comprises a male plug and a female plug, wherein the male plug is composed of a threaded joint, a spring base, a male plug shell, a male plug valve core, a first spring and a first O-shaped ring, the threaded joint, the spring base and the male plug shell are all of a hollow rotary structure, the front end of the spring base is inserted into the end part of the male plug shell, the threaded joint and the male plug shell are fixedly connected together through threads, the spring base is fixed between the threaded joint and the spring base, the male plug valve core penetrates from one end of the male plug shell and is fixed at the other end of the male plug shell and limited in the male plug shell, the male plug valve core is sleeved with the first O-shaped ring, a first spring is arranged between the male plug valve core and the spring base, the spring can be extruded and deformed from the end of the male plug valve core, and the female plug is formed by an outer shell threaded sleeve, The valve rod is fixed inside the inner shell through the threaded connection part of the inner shell and the female plug threaded connector, the outer spring retainer ring is sleeved outside the inner shell and limited by the female plug threaded connector, one end of the outer spring retainer ring is axially free, the retainer ring is arranged on the outer circumference of the end part of the inner shell, the outer shell is limited between the retainer ring and the outer spring retainer ring, the third spring is arranged between the outer shell and the outer spring retainer ring, the outer shell spring sleeve is arranged at the end part of the outer shell, the outer shell threaded sleeve is connected and fixed with the outer shell through threads, the second spring is arranged between the outer shell threaded sleeve and the outer shell spring sleeve, and a plurality of steel balls are arranged in the circumferential direction close to the end part of the inner shell, the valve barrel sets up inside interior casing, is provided with the fourth spring between valve barrel and the valve rod, and the valve barrel is inside to be provided with second O shape circle and to form and the valve rod between sealed, its characterized in that between interior casing inside being provided with third O shape circle and forming interior casing and the valve barrel: the male plug shell is provided with a steel ball limiting groove, the bottom of the section of the steel ball limiting groove is a straight line, the extension parts at two ends of the straight line are oblique lines, and the whole section is an external opening section.

The mutual moving part between the male plug valve core and the male plug shell is of a solid structure, the extending part and the inner part of the male plug shell are of a hollow structure, and a square opening is formed in the hollow structure.

The shell body outside be provided with the circular arc recess, make things convenient for artifical propelling movement shell body extrusion third spring to make things convenient for the public plug to take out from female plug.

A plurality of taper holes are formed in the circumferential direction of the front end of the inner shell, the diameter of the hole close to the outer surface of the inner shell is larger than the diameter of the steel ball, and the diameter of the hole close to the inner surface of the inner shell is smaller than the diameter of the steel ball.

The invention has simple structure and convenient use, and the steel ball locking structure is adopted, the spring sleeve of the outer shell pushes and embeds the steel ball part into the steel ball limiting groove in the sliding process, thereby realizing self-locking, namely before opposite plugging, no action of yielding the position of the steel ball is needed, when the plug is opposite plugged, the steel ball is automatically locked, the male plug and the female plug are quickly accessed by a single hand, and simultaneously, the effect of still executing online operation when the male plug and the female plug contain high-pressure fluid can be realized.

Drawings

FIG. 1 is an assembled view of the male and female plugs of the present invention;

FIG. 2 is a view of the male plug of the present invention assembled with the male plug separated;

fig. 3 is a disassembled assembled view of the female plug of the present invention.

In the figure: 1 male plug, 101 threaded joint, 102 spring base, 103 male plug shell, 104 male plug valve core, 105 first spring, 106 first O-shaped ring, 2 female plug, 201 outer shell threaded sleeve, 202 second spring, 203 outer shell spring sleeve, 204 steel ball, 205 retaining ring, 206 outer shell, 207 third spring, 208 outer spring retaining ring, 209 inner shell, 210 female plug threaded joint, 211 valve rod, 212 fourth spring, 213 valve sleeve, 214 second O-shaped ring, 215 third O-shaped ring.

Detailed Description

Referring to fig. 1, an in-line steel ball self-locking fluid connector is composed of a male plug 1 and a female plug 2. When the male plug 1 is inserted into the female plug 2, the front end of the male plug housing 103 is inserted into the inner housing 209, the male plug housing 103 presses against the valve sleeve 213, the valve sleeve 213 compresses the fourth spring 212, the front part of the male plug valve core 104 and the valve rod 211 are mutually pressed, the male plug valve core 104 retreats, the male plug housing 103 presses against the outer housing thread bush 201, the outer housing thread bush 201 and the outer housing 206 move backwards simultaneously, meanwhile, the outer shell spring sleeve 203 moves backwards until the lower surface of the outer shell spring sleeve 203 extrudes the steel balls 204 to continuously move towards the rotation center in the taper hole 209-1, the male plug 1 continuously inserts into the female plug 2 until the steel balls 204 are completely extruded into the steel ball limiting groove 103-1 to form self-locking, at the moment, the threaded joint 101, the male plug housing 103, the male plug valve core 104, the valve sleeve 213 and the female plug threaded joint 210 are communicated, and the communication function of the male plug 1 and the female plug 2 is completed.

As shown in fig. 2, which is a schematic diagram of the separated male plug of the present invention, the male plug 1 is composed of a threaded joint 101, a spring base 102, a male plug housing 103, a male plug valve core 104, a first spring 105, and a first O-ring 106, the threaded joint 101, the spring base 102, and the male plug housing 103 are all hollow revolved body structures, the front end of the spring base 102 is inserted into the end of the male plug housing 103, the threaded joint 101 and the male plug housing 103 are fixed together by a thread connection, the spring base 102 is fixed between the threaded joint 101 and the spring base 102, the male plug valve core 104 is inserted from one end of the male plug housing 103 and fixed to the other end of the male plug housing 103 and limited inside the male plug housing 103, the male plug valve core 104 is sleeved with the first O-ring 106, the first spring 105 is arranged between the male plug valve core 104 and the spring base 102, the spring can be extruded and deformed from the end of the male plug, the male plug shell 103 is provided with a steel ball limiting groove 103-1, the bottom of the section of the steel ball limiting groove 103-1 is a straight line, the extension parts at two ends of the straight line are oblique lines, the whole section is an external opening section, the mutually moving part between the male plug valve core 104 and the male plug shell 103 is of a solid structure, the extension part and the internal part of the male plug shell 103 are of a hollow structure, and the hollow structure is provided with a square opening 104-1.

As shown in fig. 3, in order to separate and assemble the female plug of the present invention, the female plug 2 comprises an outer housing threaded sleeve 201, a second spring 202, an outer housing spring sleeve 203, steel balls 204, a retainer ring 205, an outer housing 206, a third spring 207, an outer spring retainer ring 208, an inner housing 209, a female plug threaded joint 210, a valve rod 211, a fourth spring 212, a valve sleeve 213, a second O-ring 214, and a third O-ring 215, wherein the valve rod 211 is fixed inside the inner housing 209 through the threaded connection portion of the inner housing 209 and the female plug threaded joint 210, the outer spring retainer ring 208 is sleeved outside the inner housing 209 and is limited by the female plug threaded joint 210 with one end having axial freedom, the retainer ring 205 is installed on the outer circumference of the inner housing 209 near the end, the outer housing 206 is limited between the retainer ring 205 and the outer spring retainer ring 208, the third spring 207 is arranged between the outer housing 206 and the outer spring retainer ring 208, the outer, the outer shell thread sleeve 201 and the outer shell 206 are connected and fixed together through threads, a second spring 202 is arranged between the outer shell thread sleeve 201 and the outer shell spring sleeve 203, a plurality of steel balls 204 are arranged in the circumferential direction close to the end part of the inner shell 209, a valve sleeve 213 is arranged in the inner shell 209, a fourth spring 212 is arranged between the valve sleeve 213 and the valve rod 211, a second O-shaped ring 214 is arranged in the valve sleeve 213 to form a seal with the valve rod 211, a third O-shaped ring 215 is arranged in the inner shell 209 to form a seal between the inner shell 209 and the valve sleeve 213, an arc groove 206-1 is arranged outside the outer shell 206 to facilitate manual pushing of the outer shell 206 to extrude the third spring 207, so that the male plug 1 can be conveniently taken out of the female plug 2, a plurality of taper holes 209-1 are arranged in the circumferential direction at the front end of the inner shell 209, the aperture near the inner surface of the inner housing 209 is smaller than the diameter of the steel ball 204.

Claims

1. A direct-insert steel ball self-locking fluid connector comprises a male plug (1) and a female plug (2), wherein the male plug (1) comprises a threaded joint (101), a spring base (102), a male plug shell (103), a male plug valve core (104), a first spring (105) and a first O-shaped ring (106), the threaded joint (101), the spring base (102) and the male plug shell (103) are of a hollow rotary structure, the front end of the spring base (102) is inserted into the end part of the male plug shell (103), the threaded joint (101) and the male plug shell (103) are fixedly connected together through threads, the spring base (102) is fixed between the threaded joint (101) and the spring base (102), and the male plug valve core (104) penetrates from one end of the male plug shell (103) and is fixed at the other end of the male plug shell (103) and is limited in the male plug shell (103), the male plug valve core (104) is sleeved with a first O-shaped ring (106), a first spring (105) is arranged between the male plug valve core (104) and a spring base (102), the spring can be extruded and deformed from the male plug valve core (104), the female plug (2) consists of an outer shell threaded sleeve (201), a second spring (202), an outer shell spring sleeve (203), a steel ball (204), a retainer ring (205), an outer shell (206), a third spring (207), an outer spring retainer ring (208), an inner shell (209), a female plug threaded joint (210), a valve rod (211), a fourth spring (212), a valve sleeve (213), a second O-shaped ring (214) and a third O-shaped ring (215), the valve rod (211) is fixed inside the inner shell (209) through the threaded connection part of the inner shell (209) and the female plug threaded joint (210), the outer spring retainer ring (208) is sleeved outside the inner shell (209) and is limited by the female plug threaded joint (210) in one axial degree of freedom, the check ring (205) is arranged on the outer circumference of the inner shell (209) close to the end part, the outer shell (206) is limited between the check ring (205) and the outer spring check ring (208), a third spring (207) is arranged between the outer shell (206) and the outer spring check ring (208), the outer shell spring sleeve (203) is arranged at the end part of the outer shell (206), the outer shell thread sleeve (201) is fixedly connected with the outer shell (206) through threads, a second spring (202) is arranged between the outer shell thread sleeve (201) and the outer shell spring sleeve (203), a plurality of steel balls (204) are arranged in the circumferential direction close to the end part of the inner shell (209), the valve sleeve (213) is arranged in the inner shell (209), a fourth spring (212) is arranged between the valve sleeve (213) and the valve rod (211), a second O-shaped ring (214) is arranged in the valve sleeve (213) to form a, the interior of the inner shell (209) is provided with a third O-shaped ring (215) to form a seal between the inner shell (209) and the valve sleeve (213), and the valve is characterized in that: the male plug is characterized in that a steel ball limiting groove (103-1) is formed in the male plug shell (103), the bottom of the section of the steel ball limiting groove (103-1) is a straight line, extending parts at two ends of the straight line are oblique lines, and the whole section is an external opening section.

2. An in-line steel ball self-locking fluid connector as defined in claim 1, wherein: the mutual moving part between the male plug valve core (104) and the male plug shell (103) is of a solid structure, the extending part and the inner part of the male plug shell (103) are of a hollow structure, and a square opening (104-1) is arranged on the hollow structure.

3. An in-line steel ball self-locking fluid connector as defined in claim 1, wherein: the outer shell (206) is externally provided with an arc groove (206-1), so that the third spring (207) can be conveniently extruded by pushing the outer shell (206) manually, and the male plug (1) can be conveniently taken out from the female plug (2).

4. An in-line steel ball self-locking fluid connector as defined in claim 1, wherein: a plurality of taper holes (209-1) are formed in the circumferential direction of the front end of the inner shell (209), the hole diameter close to the outer surface of the inner shell (209) is larger than the diameter of the steel ball (204), and the hole diameter close to the inner surface of the inner shell (209) is smaller than the diameter of the steel ball (204).