CN114593290B

CN114593290B - A floating anti-drop device for the female end of a quick-connect connector

Info

Publication number: CN114593290B
Application number: CN202210237213.0A
Authority: CN
Inventors: 曹树祥; 曹伟; 邱洋; 郭懿贇; 张建昌; 罗福利
Original assignee: Shenyang Tian'an Special Robot Co ltd
Current assignee: Shenyang Tian'an Special Robot Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2025-08-29
Anticipated expiration: 2042-03-11
Also published as: CN114593290A

Abstract

The utility model provides a female head of quick connector floats anticreep device, solves the unable loaded down with trivial details plug operation that is applicable to unmanned automation that prior art exists, and hydraulic means is inside to liquid filling pressure often leads to the public head of pipeline and female head connecting portion to stretch out the condition, influences equipment normal operating, problem that production safety is poor. The quick-plugging female connector comprises a floating sleeve connected with the quick-plugging female connector, wherein the floating sleeve is movably sleeved on a fixed clamping sleeve of the quick-plugging female connector, a female connector gland is arranged at the upper end of the floating sleeve, a rubber tube connector of the quick-plugging female connector extends out of the floating sleeve through a middle through hole of the female connector gland, a female floating space is arranged between the upper end of the fixed clamping sleeve and the lower side of the female connector gland, and the lower end of the floating sleeve is fixedly connected with a male guide seat. The hydraulic pipeline quick plug-in connector is reasonable in design, compact in structure, capable of assisting in completing quick plug-in connection and disconnection of the hydraulic pipeline, suitable for automatic unmanned plug-in operation, capable of effectively preventing the connector from being sprung out by internal pressure, and safe and reliable in use.

Description

Quick connector female head floating anti-falling device

Technical Field

The invention belongs to the technical field of hydraulic pipeline connecting devices, and particularly relates to a quick connector female floating anti-falling device which can assist in completing quick connection and disconnection of a hydraulic pipeline, is suitable for automatic unmanned plug operation, can effectively prevent connectors from being sprung by internal pressure, and is safe and reliable to use.

Background

At present, a plurality of quick-connect connectors with the effects of instant current interruption, self-sealing and quick plug connection mostly adopt a rotary locking structure mode, namely, one plug and one turn are used for completing the connection locking of the connectors, and one turn and one pull are used for completing the disconnection of the connectors and the self-sealing of pipelines. Although the traditional structure is relatively simple in connection action, the traditional structure cannot be suitable for unmanned automatic complicated plugging operation, and the use requirement of automatic production is difficult to meet. In addition, in the practical application process, after the hydraulic cylinder is filled with liquid medium, the internal pressure is increased, so that the situation that the connection part of the male head and the female head of the pipeline is sprung open often occurs, the normal use and operation of the equipment are affected, and the production safety is poor. Therefore, there is a need for an improvement in the anti-disengaging structure of the quick connector in the prior art.

Disclosure of Invention

The invention aims at the problems, and provides the quick plugging and disconnecting device which can assist in completing quick plugging and disconnecting of the hydraulic pipeline, is suitable for automatic unmanned plugging and disconnecting operation, can effectively prevent the connector from being sprung by internal pressure, and is safe and reliable to use.

The technical scheme includes that the quick connector female head floating anti-drop device comprises a floating sleeve connected with a quick connector female head, and is characterized in that the floating sleeve is movably sleeved on a fixed clamping sleeve of the quick connector female head, a female head gland is arranged at the upper end of the floating sleeve, a rubber tube connector of the quick connector female head extends out of the floating sleeve through a middle through hole of the female head gland, a female head floating space is arranged between the upper end of the fixed clamping sleeve positioned inside the floating sleeve and the lower side of the female head gland, and the lower end of the floating sleeve is fixedly connected with a male head guide seat.

The floating sleeve comprises a sleeve body, a female head floating connecting cavity with an opening at the upper end is arranged in the sleeve body, a male head inserting cavity is arranged at the lower end of the sleeve body and communicated with the female head floating connecting cavity, and a limiting convex edge is arranged between the female head floating connecting cavity and the male head inserting cavity. The fixed clamping sleeve of the quick-plug female head is movably inserted into the female head floating connecting cavity of the floating sleeve, the position of the lower end of the fixed clamping sleeve is limited by the limiting convex edge, and the quick-plug male head is inserted into the female head floating connecting cavity and is contacted with the quick-plug female head through the male head inserting cavity at the lower end of the sleeve body.

The female gland comprises a gland main body, wherein a connector via hole is formed in the middle of the gland main body, a plurality of groups of top surface connecting holes are formed in the periphery of the connector via hole and the gland main body, correspondingly, a plurality of groups of gland connecting holes are formed in the top surface of the sleeve at the upper end of the sleeve main body of the floating sleeve, a floating limit flange is arranged on the lower side of the connector via hole of the female gland, and the floating limit flange is located in the upper end of a female floating connecting cavity of the floating sleeve. The female gland is positioned and connected in the gland connecting hole on the top surface of the sleeve of the floating sleeve by using the connecting bolt arranged in the top surface connecting hole, and the fixed clamping sleeve of the quick-plug female is limited at the position of floating upwards in the female floating connecting cavity by the floating limiting flange at the lower side of the connector through hole of the female gland.

The female gland is in a split assembly structure. So as to facilitate the installation and the disassembly of the device and facilitate the use.

The male guide seat comprises a guide seat main body, a cylindrical cavity is arranged in the middle of the guide seat main body, a sleeve connecting hole with an opening at the upper end is arranged at the upper end of the cylindrical cavity, a horn-shaped cavity with an opening at the lower end is arranged at the lower end of the cylindrical cavity, the horn-shaped cavity, the cylindrical cavity and the sleeve connecting hole are mutually communicated, and a guide seat connecting flange is further arranged on the guide seat main body. The floating sleeve is connected with the sleeve connecting hole at the upper end of the male head guide seat, and in the process of mutual plug-in of the quick plug-in connectors, the quick plug-in connectors entering the cylindrical cavity through the horn-shaped cavity with the opening at the lower end are automatically righted, so that the contact and plug-in connection of the quick plug-in connectors and the quick plug-in female connectors are facilitated.

The lower end of the sleeve connecting hole is provided with a sleeve positioning hole, and correspondingly, the lower end of the floating sleeve is provided with a positioning plug. The positioning plug connector at the lower end of the floating sleeve is utilized to form positioning connection with the sleeve positioning hole at the lower end of the sleeve connecting hole of the male head guide seat.

The inner wall of the sleeve connecting hole is provided with sleeve connecting internal threads, the outer wall of the floating sleeve is provided with guide seat connecting external threads, and the upper part of the guide seat connecting external threads is also provided with a locking nut. The floating sleeve is fixedly connected to the sleeve connecting internal thread of the sleeve connecting hole of the male guide seat through the guide seat connecting external thread, and the position of the floating sleeve is fastened by the locking nut.

The quick-plug female head comprises a female head main body, a movable clamping sleeve is arranged at one end, facing the quick-plug male head, of the female head main body, a clamping sleeve compression spring is arranged between the movable clamping sleeve and the movable clamping sleeve, a female head cavity is arranged in the female head main body, a female cavity liquid inlet and a female cavity liquid outlet are respectively arranged at two ends of the female head cavity, locking steel balls and a limiting retainer ring are movably arranged in a male head inserting cavity at the female cavity liquid inlet, between the outer wall of the movable clamping sleeve and the inner wall of the fixed clamping sleeve, the female cavity liquid outlet is connected with a rubber pipe connector, a mandrel fixing seat is arranged in the female head cavity of the female head main body, a female head mandrel axially arranged along the female head main body is fixedly arranged on the mandrel fixing seat, the extending end of the female head mandrel is located at the female cavity liquid inlet, a limiting core sleeve is sleeved outside the female head cavity, a limiting compression spring is arranged between the limiting core sleeve and the mandrel fixing seat, and a moving core sleeve is arranged outside the limiting core sleeve and the moving body. The male plug is connected with the movable core sleeve of the male plug in a mutually-extruded manner to drive the limiting core sleeve to be separated from the female plug mandrel for opening, meanwhile, the male plug valve core of the male plug is connected with the female plug mandrel of the female plug in a mutually-extruded manner to drive the female plug mandrel to drive the female plug main body, the movable clamping sleeve and the fixed clamping sleeve to move relatively, and the locking clamping groove on the outer side of the male plug is connected with the locking steel balls movably arranged in the male plug-in cavity in a clamping manner, so that the male plug cavity and the female plug cavity are communicated, liquid medium is circulated, and connection of a hydraulic pipeline is realized.

The invention has the beneficial effects that the floating sleeve connected with the quick-plug female head is adopted, the floating sleeve is movably sleeved on the fixed clamping sleeve of the quick-plug female head, the upper end of the floating sleeve is provided with the female head gland, the rubber pipe connector of the quick-plug female head extends out of the floating sleeve through the middle through hole of the female head gland, a female head floating space is arranged between the upper end of the fixed clamping sleeve positioned in the floating sleeve and the lower side of the female head gland, and the lower end of the floating sleeve is fixedly connected with the male head guide seat, so that the structure is reasonable in design and compact in structure, and the floating sleeve is added on the basis of the fixed female head structure capable of realizing automatic plug of the connector, so that the quick-plug female head can appropriately float in the axial direction, and further the quick-plug female head can not be influenced by the pressure of internal liquid medium in the process of plugging and supplying liquid. And when the liquid supply is finished and the male head and the female head are disconnected, the flow break and the sealing can be rapidly finished, and the leakage of the liquid medium in the pipeline is prevented. The quick-plugging connector female head floating anti-drop device can assist in completing quick plugging and disconnecting of a hydraulic pipeline, is suitable for automatic unmanned plugging operation, can effectively prevent connectors from being sprung out by internal pressure, is safe and reliable to use, and can be applied to various engineering machinery industries including the automatic carrying field of underground coal mine supporting devices.

Drawings

Fig. 1 is a schematic view of a structure of the present invention.

Fig. 2 is a schematic structural view of the male guide holder in fig. 1.

Fig. 3 is a schematic view of a construction of the floating sleeve of fig. 1.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a schematic structural view of the female gland (split assembly structure) of fig. 1.

Fig. 6 is a bottom view of fig. 5.

Fig. 7 is a schematic view of a structure of the quick connector of fig. 1.

Fig. 8 is a schematic diagram illustrating an operation state in which the male plug moves upward and the male plug contacts the lower end of the female plug in fig. 1.

Fig. 9 is a schematic diagram showing an action state in which the male plug in fig. 8 continues to move upward, and the male plug pushes the female plug to move upward together by a distance D.

Fig. 10 is a schematic diagram showing an operation state of the male plug of fig. 9, in which the male plug is inserted into the female plug, after the male plug continues to move upward by a distance s.

The serial numbers in the figure indicate that a quick-insert female head, a fixed clamping sleeve, a rubber tube connector 3, a male head guide seat 4, a floating sleeve pipe 5, a locking nut 6, a female head gland 7, a female head floating space 8, a quick-insert male head 9, a guide seat main body 10, a cylindrical cavity 11, a horn-shaped cavity 12, a sleeve connecting hole 13, a sleeve connecting internal thread 14, a sleeve positioning hole 15, a guide seat connecting flange 16, a sleeve main body 17, a positioning plug 18, a male head plug cavity 19, a female head floating connecting cavity 20, a 21 limiting convex edge, a 22 guide seat connecting external thread, a sleeve top surface 23, a gland connecting hole 24, a gland main body 25, a top surface connecting hole 26, a connector via hole 27, a 28 floating limiting flange, a 29 movable clamping sleeve, a 30 moving core sleeve 31, a 32 female head mandrel 33 locking steel balls and a 34 limiting retainer ring.

Detailed Description

The specific structure of the present invention will be described in detail with reference to fig. 1 to 10. The quick connector female head floating anti-drop device comprises a floating sleeve 5 connected with a quick connector female head 1, wherein the floating sleeve 5 is composed of a sleeve main body 17, a female head floating connecting cavity 20 with an opening at the upper end is arranged in the sleeve main body 17, a male head inserting cavity 19 is arranged at the lower end of the sleeve main body 17, and the male head inserting cavity 19 and the female head floating connecting cavity 20 are mutually communicated. A limiting convex edge 21 for limiting the lower end position of the fixed clamping sleeve 2 is arranged between the female floating connecting cavity 20 and the male inserting cavity 19 of the sleeve main body 17, so that the fixed clamping sleeve 2 of the quick-inserting female 1 is movably inserted into the female floating connecting cavity 20 of the floating sleeve 5, and the position of the fixed clamping sleeve 2 moving downwards is limited by the limiting convex edge 21. The male plug 9 is inserted into the female floating connection cavity 20 via the male plug insertion cavity 19 at the lower end of the sleeve body 17, and is brought into contact with the female plug 1. According to specific use needs, the quick-connect female connector 1 can adopt different structural forms such as straight-through, elbow or tee joint.

The floating sleeve 5 is movably sleeved on the fixed clamping sleeve 2 of the quick-plug female connector 1, and a female connector gland 7 is arranged at the upper end of the floating sleeve 5. The female gland 7 is composed of a gland main body 25, a connector via hole 27 is arranged in the middle of the gland main body 25, a plurality of groups of top surface connecting holes 26 which are circumferentially arranged are arranged on the periphery of the connector via hole 27 and the gland main body 25, correspondingly, a plurality of groups of gland connecting holes 24 which are circumferentially arranged are arranged on the sleeve top surface 23 of the upper end of the sleeve main body 17 of the floating sleeve 5, and the gland connecting holes 24 on the sleeve top surface 23 are in one-to-one correspondence with the top surface connecting holes 26 on the female gland 7. The lower side of the connector via hole 27 of the female gland 7 is provided with a floating limit flange 28, and the floating limit flange 28 is positioned inside the upper end of the female floating connection cavity 20 of the floating sleeve 5. Thus, the female gland 7 is positioned and connected in the gland connecting hole 24 on the sleeve top surface 23 of the floating sleeve 5 by the connecting bolt arranged in the top surface connecting hole 26, and the floating position of the fixed clamping sleeve 2 of the quick-plug female 1 in the female floating connecting cavity 20 is limited by the floating limiting flange 28 at the lower side of the connector through hole 27 of the female gland 7. For facilitating the installation and the disassembly of the device and being convenient to use, the female gland 7 can be in a split assembly structure, for example, two identical semi-circular assembly structures (shown in fig. 5 and 6).

The fixed cutting ferrule 2 of the lower extreme of female head 1 of quick-connect is located the female head floating connection chamber 20 of floating sleeve 5, and the rubber tube connector 3 of female head 1 upper end of quick-connect is through the middle part through-hole of female head gland 7, stretches out to the outside of floating sleeve 5. Meanwhile, a female floating space 8 with an upper floating distance D and a lower floating distance D is arranged between the upper end of the fixed clamping sleeve 2 inside the floating sleeve 5 and a floating limit flange 28 at the lower side of the female gland 7.

The lower end of the floating sleeve 5 is fixedly connected with the male guide seat 4. The male guide seat 4 is composed of a guide seat main body 10, a cylindrical cavity 11 is arranged in the middle of the guide seat main body 10, a sleeve connecting hole 13 with an opening at the upper end is arranged at the upper end of the cylindrical cavity 11, a horn-shaped cavity 12 with an opening at the lower end is arranged at the lower end of the cylindrical cavity 11, and the horn-shaped cavity 12, the cylindrical cavity 11 and the sleeve connecting hole 13 are mutually communicated coaxially. The guide body 10 is also provided with a guide attachment flange 16 for attachment to associated equipment such as a unit bracket header. The lower end of the sleeve connecting hole 13 of the male guide seat 4 is provided with a sleeve positioning hole 15, correspondingly, the lower end of the floating sleeve 5 is provided with a positioning plug 18, and the positioning plug 18 at the lower end of the floating sleeve 5 is utilized to form positioning connection with the sleeve positioning hole 15 at the lower end of the sleeve connecting hole 13 of the male guide seat 4. The inner wall of the sleeve connecting hole 13 is provided with a sleeve connecting internal thread 14, the outer wall of the floating sleeve 5 is provided with a guide seat connecting external thread 22, the upper part of the guide seat connecting external thread 22 is also provided with a locking nut 6, the floating sleeve 5 is fixedly connected on the sleeve connecting internal thread 14 of the sleeve connecting hole 13 of the male guide seat 4 through the guide seat connecting external thread 22, the floating sleeve 5 is connected with the sleeve connecting hole 13 at the upper end of the male guide seat 4, the position of the floating sleeve 5 is fastened by the locking nut 6, meanwhile, in the process of mutually inserting the quick connectors, the quick-inserting male 9 entering the cylindrical cavity 11 through the horn-shaped cavity 12 with the opening at the lower end is automatically righted, and the contact and the insertion of the quick-inserting male 9 and the quick-inserting female 1 are facilitated.

The quick-plug female head 1 is composed of a female head main body, a movable clamping sleeve 29 is arranged at one end of the female head main body, facing the quick-plug male head 9, a fixed clamping sleeve 2 is arranged at the extending end of the movable clamping sleeve 29, and a clamping sleeve compression spring is arranged between the fixed clamping sleeve 2 and the movable clamping sleeve 29. The inside of female head main part is provided with female head cavity, and female cavity inlet and female cavity liquid outlet are provided with respectively at the both ends of female head cavity, and in female cavity inlet department's public head grafting chamber 19, between the outer wall of movable cutting ferrule 29 and the inner wall of fixed cutting ferrule 2, the activity is provided with locking steel ball 33 and spacing retaining ring 34. The liquid outlet of the female cavity is connected with a rubber tube connector 3. A mandrel fixing seat is arranged in a female cavity of the female main body, a female mandrel 32 axially arranged along the female main body is fixedly arranged on the mandrel fixing seat, and the extending end of the female mandrel 32 is positioned at a liquid inlet of the female cavity. The female head cavity of the quick-plug female head 1 and the outer side of the female head mandrel 32 are sleeved with a limiting core sleeve 31, and a limiting compression spring is arranged between the limiting core sleeve 31 and the mandrel fixing seat. The outside of the limiting core sleeve 31 and the liquid inlet of the female cavity are also sleeved with a movable core sleeve 30, and a movable compression spring is arranged between the movable core sleeve 30 and the female head main body.

The quick-plug male 9 is composed of a male main body, a male cavity is arranged in the male main body, and a rubber pipe connecting port and a male cavity liquid outlet are respectively arranged at two ends of the male cavity. One end of the male cavity liquid outlet is arranged on the male head main body, a male head inserting convex head is arranged on the male head main body, and a locking clamping groove is formed in the outer side of the male head inserting convex head. The male valve core guide sleeve is fixedly arranged in the male valve cavity, and the male valve rod which is arranged along the axial direction of the male main body is arranged in the male valve core guide sleeve in a telescopic manner. The front end of the male valve rod is provided with a male valve core with a liquid spraying hole, and a male valve core compression spring is arranged between the male valve core and the male valve core guide sleeve. And a sealing piece is further arranged between the outer side of the male valve core and the inner wall of the liquid outlet of the male cavity at the front end of the male cavity. The male plug convex head of the male plug 9 is in extrusion contact with the movable core sleeve 30 of the male plug 1 to drive the limiting core sleeve 31 to be separated from the female core shaft 32, meanwhile, the female core shaft 32 is driven to drive the female main body and the movable clamping sleeve 29 to relatively move with the fixed clamping sleeve 2 by virtue of the mutual extrusion contact of the male core shaft of the male plug 9 and the female core shaft 32 of the male plug 1, and the locking clamping groove at the outer side of the male plug convex head is clamped with the locking steel balls 33 movably arranged in the male plug cavity 19 so as to communicate the male cavity with the female cavity and enable liquid medium to circulate, so that the connection of hydraulic pipelines is realized.

When the floating anti-drop device for the female head of the quick connector is used, firstly, the quick connector 9 is connected to the plug moving mechanism, a hydraulic rubber tube for liquid supply is connected to a rubber tube connecting port of the quick connector 9, meanwhile, the fixed clamping sleeve 2 of the quick connector 1 is connected to the male head guide seat 4 through the floating sleeve 5, the male head guide seat 4 is fixedly connected with related using equipment through the guide seat connecting flange 16, and the rubber tube connecting port 3 of the quick connector 1 is connected with a liquid inlet of a hydraulic driving device (for example, a hydraulic upright post) through the hydraulic rubber tube. When the hydraulic pipeline is required to be connected and liquid is supplied to the hydraulic driving device, the quick-plug male head 9 is enabled to extend into the trumpet-shaped cavity 12 at the lower side of the male head guide seat 4 through the movement of the plug-and-pull moving mechanism, and when the quick-plug male head 9 enters the cylindrical cavity 11 through the trumpet-shaped cavity 12 with the lower end opening, the front end face of the quick-plug male head 9 is automatically righted and is contacted with the female head mandrel 32 of the quick-plug female head 1 and the end face of the moving core sleeve 30 (shown in fig. 8).

Subsequently, the male plug 9 continues to move axially and upwards, and as the fixed ferrule 2 of the male plug 1 has the female floating space 8 with the floating distance D in the female floating connection cavity 20 of the floating sleeve 5, the male plug 9 pushes the male plug 1 to move upwards together to the female floating space 8 at the upper end of the female floating connection cavity 20 from D to 0 (as shown in fig. 9; at this time, the female floating space 8 is located at the lower end of the female floating connection cavity 20). After that, when the male plug 9 continues to move upwards, the fixed ferrule 2 of the female plug 1 and the rest of the components of the female plug 1 undergo relative displacement s, and when the locking steel balls 33 inside the female plug 1 fall into the annular groove at the front end of the male plug 9, the connection of the connector is completed (as shown in fig. 10). At this time, the hydraulic pipelines of the equipment at the two ends are communicated, so that liquid can be supplied.

In the liquid filling process, by means of the floating structure between the fixed clamping sleeve 2 and the floating sleeve 5 of the quick-inserting female connector 1, the axial floating quantity of the quick-inserting female connector can offset the axial micro-motion quantity of the connector caused by the increase of internal pressure, and the connector is always in a firm connection state under the condition of no external force. After the liquid filling is completed, the plug moving mechanism drives the quick male head 9 to move downwards, when the female head floating space 8 at the upper end of the female head floating connecting cavity 20 of the floating sleeve 5 is changed from 0 to D again, the fixed clamping sleeve 2 of the quick male head 1 is limited by the limiting convex edge 21 at the lower end of the female head floating connecting cavity 20 to be in a relatively fixed state, then, as the quick male head 9 continues to move downwards, the quick male head 9 is instantaneously disconnected with the quick male head 1, and the quick male head 1 and the quick male head 9 automatically complete the flow breaking and sealing by virtue of the spring structure in the quick male head 9.

Claims

1. A floating anti-detachment device for a quick-connect female connector, comprising a floating sleeve (5) connected to a quick-connect female connector (1), characterized in that: the floating sleeve (5) is movably sleeved on the fixed sleeve (2) of the quick-connect female connector (1), and a female gland (7) is provided at the upper end of the floating sleeve (5), the hose connector (3) of the quick-connect female connector (1) extends to the outside of the floating sleeve (5) through the middle through hole of the female gland (7), and a female floating space (8) is provided between the upper end of the fixed sleeve (2) inside the floating sleeve (5) and the lower side of the female gland (7); the lower end of the floating sleeve (5) is provided with a female gland (7); The floating sleeve (5) includes a sleeve body (17), the interior of the sleeve body (17) is provided with a female floating connection cavity (20) with an upper end opening, the lower end of the sleeve body (17) is provided with a male plug cavity (19), and the male plug cavity (19) is communicated with the female floating connection cavity (20); a limited convex edge (21) is provided between the female floating connection cavity (20) and the male plug cavity (19); the female gland (7) includes a gland body (25), the middle part of the gland body (25) is provided with a connector through hole (27), and the connector through hole (27) The periphery of the floating sleeve (5) and the gland body (25) are provided with a plurality of groups of top surface connection holes (26), and correspondingly, the top surface (23) of the upper end of the sleeve body (17) of the floating sleeve (5) is provided with a plurality of groups of gland connection holes (24); the lower side of the connector through hole (27) of the female gland (7) is provided with a floating limit flange (28), and the floating limit flange (28) is located inside the upper end of the female floating connection cavity (20) of the floating sleeve (5); the male guide seat (4) includes a guide seat body (10), and a cylindrical cavity (11) is provided in the middle of the guide seat body (10), and the cylindrical cavity (1 1) is provided with a sleeve connecting hole (13) with an upper end opening, and a trumpet-shaped cavity (12) with a lower end opening is provided at the lower end of the cylindrical cavity (11), and the trumpet-shaped cavity (12), the cylindrical cavity (11) and the sleeve connecting hole (13) are communicated with each other; a guide seat connecting flange (16) is also provided on the guide seat body (10); a sleeve connecting internal thread (14) is provided on the inner wall of the sleeve connecting hole (13), a guide seat connecting external thread (22) is provided on the outer wall of the floating sleeve (5), and a locking nut (6) is also provided on the upper part of the guide seat connecting external thread (22).

2. The floating anti-drop device for the female quick-connect connector according to claim 1, characterized in that the female gland (7) adopts a split assembly structure.

3. The floating anti-detachment device for the female quick-connect connector according to claim 1 is characterized in that a sleeve positioning hole (15) is provided at the lower end of the sleeve connecting hole (13), and correspondingly, a positioning plug connector (18) is provided at the lower end of the floating sleeve (5).

4. The floating anti-slip device of the quick-plug female connector according to claim 1 is characterized in that: the quick-plug female connector (1) includes a female connector body, a movable clamping sleeve (29) is provided at one end of the female connector body facing the quick-plug male connector (9), a fixed clamping sleeve (2) is provided at the extended end of the movable clamping sleeve (29), and a clamping sleeve compression spring is provided between the fixed clamping sleeve (2) and the movable clamping sleeve (29); a female connector cavity is provided inside the female connector body, a female connector liquid inlet and a female connector liquid outlet are provided at both ends of the female connector cavity, and a locking steel ball ( 33) and a limiting retaining ring (34); the liquid outlet of the female cavity is connected to the hose connector (3); a core shaft fixing seat is provided in the female cavity of the female body, and a female core shaft (32) arranged along the axial direction of the female body is fixedly provided on the core shaft fixing seat, and the extended end of the female core shaft (32) is located at the liquid inlet of the female cavity; a limiting core sleeve (31) is provided inside the female cavity and outside the female core shaft (32), and a limiting compression spring is provided between the limiting core sleeve (31) and the core shaft fixing seat; a movable core sleeve (30) is also provided outside the limiting core sleeve (31) and at the liquid inlet of the female cavity, and a movable compression spring is provided between the movable core sleeve (30) and the female body.