Button type locking connector

Abstract

The utility model discloses a button type locking connector which comprises a connecting sleeve provided with a button ring, an upper shell assembly connected with the button ring in a clamped mode and a lower shell assembly connected with the connecting sleeve in a sleeved mode, an upper valve element is elastically arranged in the upper shell assembly, a first sealing ring is arranged on the upper valve element, and a second sealing ring is arranged on the lower shell assembly. An ejector rod and an elastically-arranged lower valve element are arranged in the lower shell assembly, the lower valve element is connected to the outer side wall of one side of the ejector rod in a sleeved mode, and a second sealing ring is arranged at the position, corresponding to the sleeved connection position, of the ejector rod. The upper shell assembly extrudes the lower shell assembly, the ejector rod abuts against the upper valve element, and the button ring is clamped to the upper shell assembly for fixing and limiting, so that the ejector rod abuts against the upper valve element without a gap while the lower shell assembly and the upper shell assembly are connected and communicated; and during disassembly, the button ring is extruded to realize automatic ejection, and meanwhile, the sealing ring synchronously seals the communication position, so that the aim of no leakage during disassembly is fulfilled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of equipment cooling pipeline accessories, particularly relates to a button type locking connector. BACKGROUND

[0002] At present, the quick connecting device widely used in liquid cooling pipeline connection of large data center is composed of a male plug and a female connector. In actual use, the male plug and the female connector are connected by plugging. During maintenance of the pipeline, the male plug and the female connector need to be disconnected. At present, most of the unlocking and disconnecting of the structure need to move the locking mechanism along the axial direction of the connector, which requires a large operation space. Moreover, the locking mechanism is easy to slip off from the fingers, and the operation convenience is poor. SUMMARY

[0003] In view of the above problems of the prior art, the utility model solves the technical problem of providing a button type locking connector which is convenient to open and close, can ensure sealing during use, and does not leak medium during disassembly.

[0004] To solve the above technical problems, one technical scheme of the utility model is to provide a button type locking connector, which comprises a connecting sleeve provided with a button ring, an upper shell assembly connected with the button ring, and a lower shell assembly sleeved with the connecting sleeve. A connecting boss is arranged on one side of the connecting sleeve, a through hole communicating with the connecting sleeve is arranged on the connecting boss, a button ring is arranged in the through hole, two first protrusions are symmetrically arranged on one side of the button ring, and two second protrusions are symmetrically arranged on the other side of the button ring. A connecting through hole is arranged on the connecting boss corresponding to the position of the first protrusion, and the side of the first protrusion corresponding to the position is inserted into the connecting through hole. The side of the second protrusion protrudes from the inner side wall of the button ring, and the upper end of the protruding end is provided with a clearance slope. A clearance groove is arranged on the inner wall of the through hole corresponding to the position of the second protrusion.

[0005] An upper valve core is elastically arranged in the upper shell assembly, a first sealing ring is arranged on the upper valve core, a top rod and an elastically arranged lower valve core are arranged in the lower shell assembly, the lower valve core is sleeved on the outer side wall of one side of the top rod, and a second sealing ring is arranged on the top rod corresponding to the sleeving position. In use, the upper shell assembly extrudes the lower valve core, and the top rod pushes out the upper valve core. The upper shell assembly and the lower shell assembly are connected, and the upper shell assembly is limited by the button ring. When disassembled, the button ring is pressed to release the clamping position, and under the action of the elastic force, the upper valve core pushes back the top rod. The liquid outlet end of the upper shell assembly is sealed with the first sealing ring, and the second sealing ring is sealed with the liquid outlet end of the lower shell assembly.

[0006] With the above structure, the upper housing assembly is used to extrude the lower valve core, the top rod is upwardly extruded from the upper valve core, the upper housing assembly and the lower housing assembly are penetrated, and the button ring in the connecting sleeve is clamped to limit the upper housing assembly at this time, and the medium flows in the penetration position; when disassembled, the button ring is extruded, the upper housing assembly is no longer clamped and limited, and under the elastic force of the elastic connecting piece, the upper valve core is extruded back to the top rod, and in this process, the upper valve core and the top rod are always in abutting state, and there is no medium residual gap, at the same time, the liquid outlet end of the upper housing assembly is sealed with the first sealing ring, and the second sealing ring is sealed with the liquid outlet end of the lower housing assembly, that is, the upper housing assembly and the lower housing assembly are separated in the form of extruding the button, and when the upper housing assembly is pulled off from the connecting sleeve, no medium is leaked, the structure is simple and compact, and the operation is convenient.

[0007] In order to improve the stability of the connection and limit, as a preferred, the upper housing assembly comprises a male plug sleeve, a placing hole is provided on the male plug sleeve in the axial direction, a directional boss is provided on one side of the male plug sleeve, a limiting boss is provided on the other side, and a limiting groove is provided between the directional boss and the limiting boss corresponding to the position of the male plug sleeve; when installed, the male plug sleeve is inserted into the connecting sleeve, the upper end surface of the limiting boss is in abutting and limiting position with the lower end surface of the protruding end of the second block, and the locking and limiting of the button ring to the male plug sleeve is realized.

[0008] In order to ensure the synchronization of unlocking and sealing of the first sealing ring, as a preferred, the upper housing assembly further comprises a first compression spring provided in the placing hole, one end of the first compression spring is fixedly connected with a stop ring fixedly provided in the placing hole, the other end is fixedly connected with the upper valve core, a first sealing ring is embedded on the outer side wall of the upper valve core, and the outer side wall of the first sealing ring is in abutting and resisting position with the hole wall of the placing hole.

[0009] In order to facilitate the limiting of the upper valve core and avoid the exposure of the first sealing ring to affect the sealing effect, as a preferred, a transition inclined surface is provided on the outer side wall of the upper valve core, a limiting inclined surface is provided on the hole wall of the placing hole corresponding to the position of the transition inclined surface, the limiting inclined surface is in abutting position with the transition inclined surface, and the end surface of the non-connection end of the upper valve core is flush with the hole port end surface of the corresponding end of the placing hole.

[0010] In order to ensure the synchronization of unlocking and sealing of the second sealing ring, preferably, the lower housing assembly further comprises a female plug sleeve sleeved on the connecting sleeve, a stepped hole is arranged in the connecting sleeve, a top rod is fixedly arranged in the female plug sleeve and extends into the small hole end of the stepped hole, the extending end of the top rod is sleeved in the directional hole of the lower valve core, a second compression spring is further sleeved on the outer side of the top rod, a connecting lug is circumferentially arranged on one side of the lower valve core, one end of the second compression spring abuts against the lower end surface of the connecting lug, and the other end abuts against the inner side wall of the female plug sleeve; a second sealing ring is embedded on the outer side wall of the top rod, and the outer side wall of the second sealing ring abuts against the inner side wall of the directional hole.

[0011] In order to facilitate the positioning of the lower valve core and avoid the exposure of the second sealing ring to affect the sealing effect, preferably, a transition hole is arranged in communication between the through hole and the stepped hole, a sleeve pipe extending into the large hole end of the stepped hole is sleeved on the outer side of the second compression spring, and an upper sealing ring, a separation ring and a lower sealing ring are sequentially arranged from top to bottom between the end surface of the extending end of the sleeve pipe and the hole bottom of the stepped hole, the upper end surface of the upper sealing ring abuts against the hole bottom of the stepped hole, the lower end surface of the lower sealing ring abuts against the end surface of the extending end of the sleeve pipe, and the separation ring is sleeved on the outer side of the lower valve core.

[0012] In order to facilitate the positioning of the sleeve pipe and simplify the structure, preferably, the stepped surface of the stepped hole is a slope structure with a narrow upper part and a wide lower part, a first positioning slope is arranged on the outer side wall of the sleeve pipe at the position corresponding to the stepped surface of the stepped hole, and a second positioning slope is arranged on the inner side wall of the sleeve pipe at the position corresponding to the first positioning slope; during installation, the sleeve pipe extends into the stepped hole, the end surface of the extending end of the sleeve pipe abuts against the lower end surface of the lower sealing ring, the first positioning slope abuts against the stepped surface of the stepped hole, and the second positioning slope abuts against the upper end surface of the connecting lug.

[0013] In order to avoid interference in sealing and movement caused by material deformation, preferably, an installation groove is arranged in the female plug sleeve at a position corresponding to the position communicated with the connecting sleeve, and an installation ring is connected to one end of the top rod and fixedly sleeved in the installation groove.

[0014] Beneficial effects: the upper housing assembly is arranged to extrude the lower housing assembly, the top rod abuts against the upper valve core, the button ring is clamped to the upper housing assembly for fixing and positioning, the lower housing assembly and the upper housing assembly are connected and communicated, and the top rod abuts against the upper valve core without leaving a gap; during disassembly, the extruded button ring is automatically popped out, and the sealing ring simultaneously seals the communicated position, so that the purpose of disassembly without external leakage is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0016] Figure 1 It is the assembly structure schematic view before connection of the utility model.

[0017] Figure 2 It is the assembly structure schematic view before connection of the utility model.

[0018] Figure 3 It is the structure schematic view of male plug sleeve.

[0019] Figure 4 It is the structure schematic view of upper valve core.

[0020] Figure 5 It is the internal structure schematic view of connecting sleeve.

[0021] Figure 6 It is the structure schematic view of button ring.

[0022] Figure 7 It is the structure schematic view of lower valve core.

[0023] Figure 8 It is the three-dimensional structure schematic view of mounting ring and ejector rod.

[0024] Figure 9 It is the use state schematic view of the utility model.

[0025] The meaning of each reference sign in the drawings is as follows:

[0026] Connecting sleeve-1; connecting boss-10; button ring-11; first protrusion-121; second protrusion-122; clearance bevel-123; connecting through hole-13; clearance slot-14; stepped hole-15; transition hole-16; first positioning bevel-171; second positioning bevel-172;

[0027] Upper valve core-2; first sealing ring-20; transition bevel-21; sleeve-3;

[0028] Male plug sleeve-4; limiting boss-40; placement hole-401; retreat stop ring-402; limiting bevel-403; directional boss-41; limiting slot-42; lower valve core-5; ejector rod-50; second sealing ring-51; connecting protrusion-52; directional hole-53; mounting ring-54;

[0029] Isolation ring-60; first compression spring-61; second compression spring-62; upper sealing ring-63; lower sealing ring-64; female plug sleeve-7; mounting slot-71. DETAILED DESCRIPTION

[0030] Depend on Figures 1 to 9 As shown, the utility model includes a connecting sleeve 1 provided with a button ring 11, an upper shell assembly clamped with the button ring 11, and a lower shell assembly sleeved with the connecting sleeve 1, an upper valve core 2 is elastically provided in the upper shell assembly, a first sealing ring 20 is provided on the upper valve core 2, a push rod 50 and an elastically provided lower valve core 5 are provided in the lower shell assembly, the lower valve core 5 is sleeved on the outer side wall of one side of the push rod 50, and a second sealing ring 51 is provided at the corresponding sleeve position on the push rod 50; when in use, the upper shell assembly squeezes the lower valve core 5 and makes the push rod 50 push out the upper valve core 2, the upper shell assembly and the lower shell assembly are connected, and the button ring 11 clamps the upper shell assembly to limit the position; when disassembling, press the button ring 11 to loosen the clamping position, and under the action of elastic force, the upper valve core 2 pushes back the push rod 50, the liquid outlet end of the upper shell assembly is sealed with the first sealing ring 20, and the second sealing ring 51 is sealed with the liquid outlet end of the lower shell assembly.

[0031] Specifically, a connecting boss 10 is provided on one side of the connecting sleeve 1, a through hole communicating with the connecting sleeve 1 is provided on the connecting boss 10, a button ring 11 is provided in the through hole, two first protrusions 121 are symmetrically provided on one side of the button ring 11, and two second protrusions 122 are symmetrically provided on the other side, and connecting through holes 13 are provided at positions corresponding to the first protrusions 121 on the connecting boss 10, one side of the first protrusion 121 at the corresponding position extends into the connecting through hole 13, one side of the second protrusion 122 protrudes from the inner side wall of the button ring 11 and the upper end of the protruding end is provided with a yield slope 123, and a yield groove 14 is provided at the position corresponding to the second protrusion 122 on the inner wall of the through hole.

[0032] The upper shell assembly includes a male plug sleeve 4, on which a placement hole 401 is axially penetrated, a directional boss 41 is provided at one end of the outer side of the male plug sleeve 4, and a limiting boss 40 is provided at the other end, and a limiting groove 42 is provided at a position between the directional boss 41 and the limiting boss 40 on the male plug sleeve 4; when installed, the male plug sleeve 4 extends into the connecting sleeve 1, and the upper end surface of the limiting boss 40 abuts against the lower end surface of the protruding end of the second protrusion 122 to achieve locking and limiting of the male plug sleeve 4 by the button ring 11.

[0033] The upper housing assembly further comprises a first compression spring 61 arranged in the placement hole 401, one end of the first compression spring 61 is fixedly connected with the stop ring 402 fixedly arranged in the placement hole 401, and the other end is fixedly connected with the upper valve core 2, a first sealing ring 20 is embedded on the outer side wall of the upper valve core 2, and the outer side wall of the first sealing ring 20 abuts against the hole wall of the placement hole 401; a transition inclined surface 21 is arranged on the outer side wall of the upper valve core 2, and a limiting inclined surface 403 is arranged on the hole wall of the placement hole 401 corresponding to the position of the transition inclined surface 21, the limiting inclined surface 403 abuts against the transition inclined surface 21, and the end face of the non-connected end of the upper valve core 2 is flush with the hole orifice end face of the corresponding end of the placement hole 401.

[0034] The lower housing assembly further comprises a female plug sleeve 7 sleeved on the connecting sleeve 1, a stepped hole 15 is arranged in the connecting sleeve 1, a jacking rod 50 is fixedly arranged in the female plug sleeve 7 and extends into the small hole end of the stepped hole 15, the extending end of the jacking rod 50 is sleeved in the directional hole 53 of the lower valve core 5, a second compression spring 62 is further sleeved on the outer side of the jacking rod 50, a connecting lug 52 is circumferentially arranged on one side of the lower valve core 5, one end of the second compression spring 62 abuts against the lower end face of the connecting lug 52, and the other end abuts against the inner side wall of the female plug sleeve 7; a second sealing ring 51 is embedded on the outer side wall of the jacking rod 50, and the outer side wall of the second sealing ring 51 abuts against the inner side wall of the directional hole 53.

[0035] A transition hole 16 is arranged in communication between the through hole and the stepped hole 15, a sleeve 3 extending into the large hole end of the stepped hole 15 is sleeved on the outer side of the second compression spring 62, an upper sealing ring 63, an isolation ring 60 and a lower sealing ring 64 are sequentially arranged from top to bottom between the end face of the extending end of the sleeve 3 and the hole bottom of the stepped hole 15, the upper end face of the upper sealing ring 63 abuts against the hole bottom of the stepped hole 15, the lower end face of the lower sealing ring 64 abuts against the end face of the extending end of the sleeve 3, and the isolation ring 60 is sleeved on the outer side of the lower valve core 5.

[0036] The stepped surface of the stepped hole 15 is an inclined surface structure with a narrow upper part and a wide lower part, a first positioning inclined surface 171 is arranged on the outer side wall of the sleeve 3 corresponding to the position of the stepped surface of the stepped hole 15, and a second positioning inclined surface 172 is arranged on the inner side wall of the sleeve 3 corresponding to the position of the first positioning inclined surface 171; during installation, the sleeve 3 extends into the stepped hole 15, the end face of the extending end of the sleeve 3 abuts against the lower end face of the lower sealing ring 64, the first positioning inclined surface 171 abuts against the stepped surface of the stepped hole 15, and the second positioning inclined surface 172 abuts against the upper end face of the connecting lug 52; an installation groove 71 is arranged in the female plug sleeve 7 corresponding to the position in communication with the connecting sleeve 1, and an installation ring 54 is connected to one end of the jacking rod 50, and the installation ring 54 is fixedly sleeved in the installation groove 71.

[0037] The use principle of the utility model is as follows:

[0038] As Figures 1 to 4 shown, before use, first, put the button ring 11 into the through hole of the connecting boss 10, two first lugs 121 respectively extend into the connecting through hole 13 of the corresponding end, at the same time, two second lugs 122 respectively align the give way slot 14 of the corresponding end; in addition, one end of the first compression spring 61 is fixedly connected with the retainer ring 402, the other end is fixedly connected with the upper valve core 2, the first sealing ring 20 is embedded on the outer side wall of the upper valve core 2, the outer side wall of the first sealing ring 20 is abutted with the hole wall of the placement hole 401; at the same time, the limiting inclined surface 403 is abutted with the transition inclined surface 21, and the end face of the non-connecting end of the upper valve core 2 is flush with the hole mouth end face of the corresponding end of the placement hole 401.

[0039] Then, as Figure 1 , Figure 2 and Figures 5 to 8 shown, sequentially put the upper sealing ring 63, the isolation ring 60 and the lower sealing ring 64 into the stepped hole 15, the outer side wall of the upper sealing ring 63 and the lower sealing ring 64 is abutted with the small hole end hole wall of the stepped hole 15, then put the sleeve 3, and make the upper end face of the upper sealing ring 63 abut with the hole bottom of the stepped hole 15, the lower end face of the lower sealing ring 64 abut with the end face of the sleeve 3 extending end, the isolation ring 60 is sleeved on the outer side of the lower valve core 5, then put the second compression spring 62.

[0040] Then, again, the mounting ring 54 is sleeved and fixed in the mounting groove 71, the jacking rod 50 is placed vertically, then, the female plug sleeve 7 is connected and sleeved on the connecting sleeve 1, and one end of the second compression spring 62 abuts with the lower end face of the connecting lug 52, and the other end abuts with the inner side wall of the female plug sleeve 7, at this time, the jacking rod 50 extends into the directional hole 53 through the second compression spring 62, and the outer side wall of the second sealing ring 51 abuts with the inner side wall of the directional hole 53, at the same time, the second positioning inclined surface 172 abuts with the upper end face of the connecting lug 52, and the outer side wall of the second sealing ring 51 abuts with the inner side wall of the directional hole 53.

[0041] When using, as Figure 1 , Figure 2 and Figure 9As shown, the male plug sleeve 4 extends into the connecting boss 10, the lower end surface of the limiting boss 40 simultaneously extrudes the two second protrusions 122 on the displacement inclined surface 123, and the two second protrusions 122 are respectively moved into the displacement slot 14 at the corresponding end. The male plug sleeve 4 continues to extend, extruding the second compression spring 62 with the lower valve core 5. At this time, the top rod 50 fixedly arranged in the female plug sleeve 7 forms a relative movement of the upward ejection of the upper valve core 2. With the extension of the male plug sleeve 4, the top rod 50 leaves the directional hole 53 and enters the placement hole 401. The first compression spring 61 is extruded. After the limiting boss 40 moves over the displacement inclined surface 123, the two first protrusions 121 simultaneously return and extend into the connecting through hole 13, and the two second protrusions 122 also simultaneously return a distance in the displacement slot 14. The upper end surface of the limiting boss 40 abuts against the lower end surface of the protruding end of the second protrusion 122, achieving the locking and limiting of the button ring 11 to the male plug sleeve 4. At the same time, the end surface of the extension end of the male plug sleeve 4 abuts against the upper end surface of the lower valve core 5, and the upper end surface of the top rod 50 abuts against the lower end surface of the upper valve core 2. In this way, the placement hole 401 is in communication with the directional hole 53, and the medium can flow smoothly. Since the lower end surface of the male plug sleeve 4 abuts against the upper end surface of the lower valve core 5 during the movement, the medium will not leak out at this time.

[0042] When disassembling, the two first protrusions 121 are directly pressed simultaneously, the button ring 11 is deformed, the second protrusion 122 is moved into the displacement slot 14, the limiting boss 40 is separated from the second protrusion 122, then the connecting sleeve 1 is slowly loosened, the lower valve core 5 is pushed out of the male plug sleeve 4 under the elastic force of the second compression spring 62, at the same time, the first compression spring 61 also drives the upper valve core 2 to abut against and push the top rod 50. With the upward movement of the lower valve core 5, the second sealing ring 51 returns to the directional hole 53, and the outer side wall of the second sealing ring 51 abuts against the inner side wall of the directional hole 53. At the same time, the outer side wall of the first sealing ring 20 abuts against the hole wall of the placement hole 401. During the whole process, the upper valve core 2 and the top rod 50 remain in the abutting state.

[0043] Due to the abutting and limiting of the transition inclined surface 21 and the limiting inclined surface 403, the upper valve core 2 will not protrude out of the placement hole 401, that is, the first sealing ring 20 and the second sealing ring 51 are both in the built-in sealing state, and the sealing stability is good. In this way, when the upper valve core 2 and the top rod 50 are separated, the medium will not be left and leaked out.

Claims

1. A push-button locking connector, characterized in that: The invention comprises a connecting sleeve (1) provided with a button ring (11), an upper shell assembly clamped with the button ring (11), and a lower shell assembly sleeved with the connecting sleeve (1); a connecting boss (10) is provided on one side of the connecting sleeve (1); a through hole communicating with the connecting sleeve (1) is provided on the connecting boss (10); a button ring (11) is provided in the through hole; two first protrusions (121) are symmetrically provided on one side of the button ring (11); and two first protrusions (121) are symmetrically provided on the other side. A second protrusion (122), a connecting through hole (13) is provided at a position corresponding to the first protrusion (121) on the connecting boss (10), one side of the first protrusion (121) at the corresponding position extends into the connecting through hole (13), one side of the second protrusion (122) protrudes from the inner side wall of the button ring (11), and a yielding inclined surface (123) is provided at the upper end of the protruding end, and a yielding groove (14) is provided at a position corresponding to the second protrusion (122) on the inner wall of the through hole; An upper valve core (2) is elastically provided in the upper housing assembly, a first sealing ring (20) is provided on the upper valve core (2), a push rod (50) and an elastically provided lower valve core (5) are provided in the lower housing assembly, the lower valve core (5) is sleeved on the outer side wall of one side of the push rod (50), and a second sealing ring (51) is provided at a corresponding sleeve position on the push rod (50); when in use, the upper housing assembly squeezes the lower valve core (5) and causes the push rod (50) to push out the upper valve core (2), so that the upper housing assembly and the lower housing assembly are connected, and the button ring (11) is clamped to limit the upper housing assembly; when disassembling, the button ring (11) is pressed to release the clamping position, and under the action of the elastic force, the upper valve core (2) pushes back the push rod (50), the liquid outlet end of the upper housing assembly is sealed with the first sealing ring (20), and the second sealing ring (51) is sealed with the liquid outlet end of the lower housing assembly.

2. A push-button locking connector according to claim 1, characterized in that: The upper shell assembly comprises a male plug sleeve (4), a placement hole (401) is provided on the male plug sleeve (4) along the axial direction, a directional boss (41) is provided at one end of the outer side of the male plug sleeve (4), and a limiting boss (40) is provided at the other end, and a limiting groove (42) is provided on the male plug sleeve (4) at a position corresponding to the directional boss (41) and the limiting boss (40); when installed, the male plug sleeve (4) extends into the connecting sleeve (1), and the upper end surface of the limiting boss (40) abuts against the lower end surface of the protruding end of the second protrusion (122) to limit the position, thereby realizing the locking and limiting of the button ring (11) on the male plug sleeve (4).

3. A push-button locking connector according to claim 2, characterized in that: The upper shell assembly also includes a first compression spring (61) arranged in the placement hole (401), one end of the first compression spring (61) is fixedly connected to a stop ring (402) fixedly arranged in the placement hole (401), and the other end is fixedly connected to the upper valve core (2), and a first sealing ring (20) is embedded in the outer wall of the upper valve core (2), and the outer wall of the first sealing ring (20) is in contact with the hole wall of the placement hole (401).

4. A push-button locking connector according to claim 2, characterized in that: A transition slope (21) is provided around the outer wall of the upper valve core (2), and a limiting slope (403) is provided on the hole wall of the placement hole (401) at a position corresponding to the transition slope (21). The limiting slope (403) fits in contact with the transition slope (21), and the end face of the non-connecting end of the upper valve core (2) is flush with the end face of the hole opening corresponding to the placement hole (401).

5. The push-button locking connector according to claim 1, wherein: The lower housing assembly also includes a female plug sleeve (7) that is connected and sleeved on the connecting sleeve (1), a step hole (15) is provided in the connecting sleeve (1), and a push rod (50) is fixed in the female plug sleeve (7) and extends into the small hole end of the step hole (15), the extended end of the push rod (50) is sleeved in the directional hole (53) of the lower valve core (5), and a second compression spring (62) is sleeved on the outer side of the push rod (50), and a connecting protrusion (52) is provided around one side of the lower valve core (5) in the circumferential direction, one end of the second compression spring (62) abuts against the lower end surface of the connecting protrusion (52), and the other end abuts against the inner side wall of the female plug sleeve (7); a second sealing ring (51) is embedded on the outer side wall of the push rod (50), and the outer side wall of the second sealing ring (51) abuts against the inner side wall of the directional hole (53).

6. The push-button locking connector according to claim 5, wherein: A transition hole (16) is provided between the through hole and the stepped hole (15), a sleeve (3) is provided on the outer side of the second compression spring (62) and is inserted into the large hole end of the stepped hole (15), an upper sealing ring (63), an isolating ring (60) and a lower sealing ring (64) are stacked in sequence from top to bottom between the end face of the inserted end of the sleeve (3) and the bottom of the stepped hole (15), the upper end face of the upper sealing ring (63) is in contact with the bottom of the stepped hole (15), the lower end face of the lower sealing ring (64) is in contact with the end face of the inserted end of the sleeve (3), and the isolating ring (60) is sleeved on the outer side of the lower valve core (5).

7. The push-button locking connector according to claim 6, wherein: The step surface of the step hole (15) is a sloped structure that is narrow at the top and wide at the bottom. A first positioning slope (171) is provided on the outer wall of the sleeve (3) at a position corresponding to the step surface of the step hole (15), and a second positioning slope (172) is provided on the inner wall of the sleeve (3) at a position corresponding to the first positioning slope (171). During installation, the sleeve (3) is inserted into the step hole (15), the end surface of the sleeve (3) inserted into the step hole (15) abuts against the lower end surface of the lower sealing ring (64), the first positioning slope (171) abuts against the step surface of the step hole (15), and the second positioning slope (172) abuts against the upper end surface of the connecting protrusion (52).

8. The push-button locking connector according to claim 6, wherein: A mounting groove (71) is provided in the female plug sleeve (7) at a position corresponding to the position communicating with the connecting sleeve (1), and a mounting ring (54) is connected to one end of the push rod (50), and the mounting ring (54) is sleeved and fixed in the mounting groove (71).

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