CN113357462B - A quick-release drain - Google Patents

Abstract

The invention discloses a quick-release type drain pipe which comprises a first water pipe and a second water pipe, wherein a first base is arranged on the upper end surface of the second water pipe, a first groove is formed in the upper end surface of the first base, a first through hole which is communicated with the second water pipe and can be used for inserting the lower end of the first water pipe is formed in the center of the bottom surface of the first groove, a plurality of arc-shaped through holes which are communicated with the outer side wall of the first base are formed in the inner side wall of the first groove at intervals in the circumferential direction, a first arc-shaped sliding block is connected in the arc-shaped through holes in a sliding mode, the upper end of the first arc-shaped sliding block extends out of the outer side wall of the first base, a first barb is arranged at the upper end of the first arc-shaped sliding block, a first limiting structure which prevents the first arc-shaped sliding block from sliding out of the arc-shaped through holes is arranged at the lower end of the first arc-shaped sliding block, a first driving mechanism which controls the first arc-shaped sliding block to slide is arranged on the outer side wall of the first water pipe, and a first buckle structure which controls the first buckle structure to open or close is arranged on the outer side wall of the first water pipe.

Description

A quick-release drain pipe

technical field

The invention relates to the technical field of drainage pipes, in particular to a quick-release drainage pipe.

Background technique

Two drainage pipes in the current market are all fixedly connected by threads. People with certain life experience will find that once the water pipes connected by threads have been connected for a long time, impurities will adhere to the surface of the threads. Over time, the impurities begin to condense into agglomerates, and the thread structure between the water pipes will slowly be bonded. At this time, it is difficult to separate the two water pipes by reverse rotation between the water pipes.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides an in-line, quick-detachable drainage pipe that can realize the fixed connection of two water pipes without screw connection.

A quick-detachable drainage pipe of the present invention includes a first water pipe and a second water pipe, the upper end of the second water pipe is provided with a first base, the upper end of the first base is provided with a first groove, and the center of the bottom surface of the first groove is There is a first through hole that communicates with the second water pipe and can be inserted into the lower end of the first water pipe. The inner wall of the first groove is circumferentially provided with a plurality of arc-shaped through holes that communicate with the outer wall of the first base, and the arc-shaped through holes are slidingly connected. There is a first arc-shaped sliding block, the upper end of the first arc-shaped sliding block protrudes from the outer wall of the first base, the upper end of the first arc-shaped sliding block is provided with a first barb, and the outer wall of the lower end of the first arc-shaped sliding block is provided with an arc-shaped through hole to prevent slipping out The first limit structure, the outer wall of the first water pipe is provided with a first driving mechanism that controls the sliding of the first arc-shaped sliding block, the outer wall of the first water pipe is provided with a first buckle structure that can be adapted to the first barb, The outer wall of the first water pipe is provided with a first control structure for controlling the opening or closing of the first buckle structure.

Compared with the drain pipe in the prior art, the quick-release drain pipe in this technical solution passes through the first arc-shaped sliding block arranged on the upper end surface of the second pipe body and the outside of the first pipe body. The first buckle structure of the wall realizes the fixed connection of the two water pipes.

In this technical solution, when the lower end of the first water pipe is inserted into the first through hole on the bottom surface of the first groove, the first annular protrusion on the outer wall of the lower end of the first water pipe will be embedded in the first groove, and the first annular protrusion will Lifting the outer sidewall pushes the lower end of the first arc-shaped sliding block originally protruding from the inner sidewall of the first groove. Since the outer wall of the lower end of the first arc-shaped sliding block is provided with an arc-shaped guiding surface, when the first annular protrusion continues to slide toward the bottom surface of the first groove, the first arc-shaped sliding block will be driven by the arc-shaped guiding surface in the arc-shaped through hole. Sliding in an arc in the direction away from the first groove, that is, at this time, the upper end of the first arc-shaped sliding block will slide in the direction of the first buckle structure on the outer wall of the first positioning block. At this time, the user only needs to push the first connecting rod, so that the sliding block originally located in the second groove slides into the first blind hole on the inner wall of the second groove until the sliding block completely slides into the first blind hole Inside. When the first annular protrusion on the outer side wall of the lower end of the first water pipe is fully embedded in the first groove, the lower end of the first arc-shaped sliding block will slide completely into the arc-shaped through hole, and the upper end of the first arc-shaped sliding block will slide into the second arc-shaped through hole. groove. Release the first connecting rod that was previously pushed, and the sliding block will slide in the direction of the second groove under the push of the first spring until the first barb is clamped between the sliding block and the bottom surface of the second groove, Thus, the direct snap-fit connection between the sliding block and the first barb is completed. At this time, the first arc-shaped sliding block cannot slide out from the second groove.

At the same time, since the inner side wall of the arc-shaped through hole is provided with an arc-shaped groove, and the outer wall of the lower end of the first arc-shaped sliding block is provided with a limit protrusion embedded in the arc-shaped groove, and the curvature of the arc-shaped groove is the same as that of the arc-shaped through hole. Similarly, when the lower end of the first arc-shaped sliding block slides completely into the arc-shaped through hole, the limiting protrusion on the outer side wall of the first arc-shaped sliding block just abuts against the inner side wall of the upper end of the arc-shaped groove. Moreover, after the limiting protrusion is embedded in the arc-shaped groove on the outer wall of the first arc-shaped sliding block, after the first water pipe and the second water pipe are connected, the connection structure between the first water pipe and the second water pipe will be more stable. There is a phenomenon that the first arc-shaped sliding block falls off from the arc-shaped through hole.

As a preference: the first driving mechanism includes a first annular protrusion that is circumferentially arranged on the outer wall of the lower end of the first water pipe and can be inserted into the first groove, the first annular protrusion is a columnar structure, and the lower end of the first arc-shaped sliding block The inner wall of the first groove protrudes, and the outer wall of the lower end of the first arc-shaped sliding block is provided with a first arc-shaped guide surface that can cooperate with the first annular protrusion to drive the first arc-shaped sliding block to slide in the arc-shaped through hole.

As a preference: the outer wall of the first water pipe located above the first annular protrusion is provided with a rectangular first positioning block in the circumferential direction, and the outer wall of the first positioning block is provided with a second groove for inserting the upper end of the first arc-shaped sliding block , the second groove is slidably connected with a first buckle structure, the first buckle structure includes a sliding block that is horizontally slidably connected in the second groove, and the outer wall of the first positioning block is provided with a control sliding block in the second concave The first control structure for sliding in the groove.

As a preference: the inner wall of the second groove is provided with a first blind hole for the sliding block to slide in or out, and the first control structure includes a first spring whose end is fixedly connected to the bottom surface of the first blind hole. The end away from the first blind hole is fixedly connected to the outer wall of the sliding block, and the end of the sliding block far away from the first spring is fixedly connected to the first connecting rod. Pass through the second through hole protruding from the outer wall of the first positioning block. In the technical solution, the diameter of the second through hole is smaller than the outer diameter of the sliding block, so the sliding block will not slide out of the second groove from the second through hole when sliding toward the direction of the second through hole. And in this technical solution, the inner side wall at the opening of the first blind hole is provided with a retaining ring in the circumferential direction, and the outer wall of the sliding block extending into the first blind hole is provided with an annular protrusion that can cooperate with the retaining ring to limit the position. Pushed by the first spring to slide away from the direction of the first blind hole until the end of the sliding block away from the first blind hole is against the inner wall of the second groove, the annular protrusion on the outer wall of the sliding block in the first blind hole will The outer wall of the block will be against the inner wall of the retaining ring, that is, the sliding block cannot fall off from the first blind hole.

As a preference: the first limiting structure includes an arc-shaped groove arranged in the arc-shaped through hole, the curvature of the arc-shaped groove is the same as that of the arc-shaped through hole, and the bending direction of the arc-shaped groove is the same as that of the arc-shaped through hole. The directions are the same, and the outer wall of the first arc-shaped sliding block is provided with a limiting protrusion embedded in the arc-shaped groove and capable of sliding in the arc-shaped groove. When the first limiting protrusion is fully embedded in the first groove, the lower end of the first arc-shaped sliding block is completely slid into the arc-shaped through hole. When the first limiting protrusion is not embedded in the first groove, the lower end of the first arc-shaped sliding block slides toward the direction of the first groove until the lower end of the first arc-shaped sliding block completely extends out of the inner wall of the first groove, That is, at this time, the arc-shaped guide surface is located in the first groove, and the limiting protrusion on the outer side wall of the first arc-shaped sliding block is against the inner side wall at the lower end of the arc-shaped groove.

As a preference: the first arc-shaped sliding block is a half-moon-shaped structure, and the inner walls of the left and right sides of the first groove are symmetrically provided with an arc-shaped through hole. One end of the groove communicates with the outer wall of the middle part of the first base.

As a preference, the left and right outer walls of the first positioning block are symmetrically provided with a second groove into which the upper end of the first arc-shaped sliding block can be inserted.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

Fig. 1 is a schematic diagram of the front structure of a quick-detachable drainage pipe according to the present invention.

Fig. 2 is a structural schematic diagram of a first control structure in a quick-detachable drainage pipe according to the present invention.

Detailed ways

A number of embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some well-known and commonly used structures and components will be shown in a simple schematic manner in the drawings.

In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and do not refer to the meaning of order or sequence, nor are they used to limit the present invention, but are only for the purpose of distinguishing the following The components or operations described by the same technical terms are only used, but should not be understood as indicating or implying their relative importance or implying the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

Embodiment 1: Referring to Figures 1 to 2, in this embodiment, the water inlet at the upper end of the second water pipe is provided with a first base, and the center of the upper end surface of the first base is provided with a first groove, so the first base is concave. font structure. In the center of the bottom surface of the first groove, there is a first through hole that communicates with the inner tube hole of the second water pipe and can be inserted into the outlet end of the first water pipe, that is, the lower end of the first water pipe is inserted into the through hole on the bottom surface of the first groove to enter the second water pipe. in the tube hole in the tube. Thus, the phenomenon of water overflowing from the first water pipe to the second water pipe can be prevented. The inner walls of the left and right sides of the first groove are symmetrically provided with upward curved arc-shaped through holes, one end of the arc-shaped through hole is connected to the inner wall of the lower end of the first groove, and the end of the arc-shaped through hole is far away from the first groove. Connected to the first base outer wall. In this embodiment, the through hole in which the arc-shaped through hole communicates with the outer wall of the first base is higher than the through hole in which the arc-shaped through hole communicates with the first groove. A first arc-shaped sliding block is slid in each arc-shaped through hole.

When the first limiting protrusion on the outer wall of the first water pipe is not embedded in the first groove, the lower end of the first arc-shaped sliding block protrudes from the arc-shaped through hole on the inner wall of the first groove, and the second end of the first groove extends from one end of the first groove. The outer wall of an arc-shaped sliding block is provided with an arc-shaped guiding surface, and the upper end of the first arc-shaped sliding block is located outside the first water pipe. When the first limiting protrusion on the outer wall of the first water pipe is embedded in the first groove, the outer wall of the first limiting protrusion is against the arc-shaped guiding surface of the lower end outer wall of the first arc-shaped sliding block, and the first limiting protrusion Continue to slide towards the bottom surface of the first groove, while the first arc-shaped sliding block slides in the direction away from the first groove in the arc-shaped through hole under the reaction force of the arc-shaped guide surface. Since the first arc-shaped sliding block is a half-moon structure, so When the lower end of the first arc-shaped sliding block slides away from the first water pipe, the upper end of the first arc-shaped sliding block will approach the direction of the first water pipe until the first positioning block on the outer side wall of the upper end of the first arc-shaped sliding block and the outer side wall of the first water pipe offset.

The outer wall of the first water pipe located above the first limiting protrusion is provided with a first positioning block in the shape of a cube in the circumferential direction, and a second groove is provided on the left and right side outer walls of the first positioning block, and in the second groove A sliding block is slidably connected, and a first blind hole is provided on the inner wall behind the second groove. The sliding block can slide in the direction of the first blind hole under the action of an external force, and a first spring is fixedly connected to the bottom of the first blind hole. The end of the first spring away from the first blind hole is fixedly connected to the sliding block. The function of the first spring is to push the sliding block to slide away from the first blind hole. The front end of the first positioning block is provided with a second through hole communicating with the inner wall of the second groove, and the end of the sliding block away from the first spring is fixedly connected with the first connecting rod, and the first connecting rod extends through the second through hole out the front face of the first positioning block. When the user needs to slide the sliding block into the first blind hole, he only needs to push the first connecting rod to slide in the direction of the first blind hole, so that the sliding block can slide into the first blind hole. After the sliding block slides into the first blind hole, the first arc-shaped sliding block can be slid into the second groove or the first arc-shaped sliding block can be taken out from the second groove.

A quick-detachable drainage pipe of the present invention includes a first water pipe 1 and a second water pipe 2, the upper end of the second water pipe 2 is provided with a first base 3, and the upper end of the first base 3 is provided with a first groove 4, The center of the bottom surface of the first groove 4 is provided with a first through hole 5 that communicates with the second water pipe 2 and can be inserted into the lower end of the first water pipe 1 . The arc-shaped through-hole 6 of the wall is slidably connected with the first arc-shaped sliding block 7 in the arc-shaped through-hole 6, and the upper end of the first arc-shaped sliding block 7 stretches out from the outer wall of the first base 3, and the upper end of the first arc-shaped sliding block 7 is provided with a first inverted Hook 8, the lower end of the first arc-shaped sliding block 7 is provided with a first limit structure to prevent sliding out of the arc-shaped through hole 6, and the outer wall of the first water pipe 1 is provided with a first drive mechanism to control the sliding of the first arc-shaped sliding block 7, the first The outer wall of the water pipe 1 is provided with a first buckle structure compatible with the first barb 8 , and the outer wall of the first water pipe 1 is provided with a first control structure for controlling the opening or closing of the first buckle structure.

Compared with the drain pipe in the prior art, the quick-release drain pipe in this technical solution passes through the first arc-shaped sliding block arranged on the upper end surface of the second pipe body and the outside of the first pipe body. The first buckle structure of the wall realizes the fixed connection of the two water pipes.

In this technical solution, when the lower end of the first water pipe is inserted into the first through hole on the bottom surface of the first groove, the first annular protrusion on the outer wall of the lower end of the first water pipe will be embedded in the first groove, and the first annular protrusion will The outer wall pushes the arc-shaped guide surface at the lower end of the first arc-shaped sliding block originally protruding from the inner wall of the first groove. The first annular protrusion continues to slide towards the bottom surface of the first groove. At this time, the first arc-shaped sliding block will slide in an arc shape in the direction away from the first groove in the arc-shaped through hole under the drive of the arc-shaped guide surface, that is, the first arc-shaped sliding block at this time The upper end of the arc-shaped sliding block will slide towards the direction of the first buckle structure on the outer wall of the first positioning block on the outer wall of the first water pipe. At this time, the user only needs to push the first connecting rod, so that the sliding block originally located in the second groove slides into the first blind hole on the inner wall of the second groove until the sliding block completely slides into the first blind hole Inside. When the first annular protrusion on the outer side wall of the lower end of the first water pipe is fully embedded in the first groove, the lower end of the first arc-shaped sliding block will slide completely into the arc-shaped through hole, and the upper end of the first arc-shaped sliding block will slide into the second arc-shaped through hole. groove. Release the first connecting rod that was previously pushed, and the sliding block will slide in the direction of the second groove under the push of the first spring until the first barb is clamped between the sliding block and the bottom surface of the second groove, Thus, the direct snap-fit connection between the sliding block and the first barb is completed. At this time, the first arc-shaped sliding block cannot slide out from the second groove.

At the same time, since the inner side wall of the arc-shaped through hole is provided with an arc-shaped groove, and the outer wall of the lower end of the first arc-shaped sliding block is provided with a limit protrusion embedded in the arc-shaped groove, and the curvature of the arc-shaped groove is the same as that of the arc-shaped through hole. Similarly, when the lower end of the first arc-shaped sliding block slides completely into the arc-shaped through hole, the limiting protrusion on the outer side wall of the first arc-shaped sliding block just abuts against the inner side wall of the upper end of the arc-shaped groove. Moreover, after the limiting protrusion is embedded in the arc-shaped groove on the outer wall of the first arc-shaped sliding block, after the first water pipe and the second water pipe are connected, the connection structure between the first water pipe and the second water pipe will be more stable. There is a phenomenon that the first arc-shaped sliding block falls off from the arc-shaped through hole.

As a preference: the first drive mechanism includes a first ring-shaped projection 9 that is circumferentially arranged on the outer wall of the lower end of the first water pipe 1 and can be inserted into the first groove 4. The first ring-shaped projection 9 is a columnar structure. The lower end of the arc-shaped sliding block 7 protrudes from the inner wall of the first groove 4, and the outer wall of the lower end of the first arc-shaped sliding block 7 is provided with the first annular protrusion 9 to drive the first arc-shaped sliding block 7 to slide in the arc-shaped through hole 6. The first arc-shaped guide surface 10.

As a preference: the outer wall of the first water pipe 1 above the first annular protrusion 9 is provided with a rectangular first positioning block 11 in the circumferential direction, and the outer wall of the first positioning block 11 is provided with an upper end of the first arc-shaped sliding block 7 for insertion. The second groove 12, the second groove 12 is slidably connected with the first buckle structure, the first buckle structure includes a sliding block 13 that is laterally slidably connected in the second groove 12, and the outside of the first positioning block 11 The wall is provided with a first control structure for controlling the sliding of the sliding block 13 in the second groove 12 .

As a preference: the inner wall of the second groove 12 is provided with a first blind hole 14 for the sliding block 13 to slide in or out, and the first control structure includes a first spring whose end is fixedly connected to the bottom surface of the first blind hole 14 15. The end of the first spring 15 far away from the first blind hole 14 is fixedly connected to the outer wall of the sliding block 13, and the end of the sliding block 13 far away from the first spring 15 is fixedly connected to the first connecting rod 16, and the outer wall of the first positioning block 11 is provided with a connecting second The inner side wall of the second groove 12 allows the first connecting rod 16 to pass through the second through hole 17 protruding from the outer side wall of the first positioning block 11 . In the technical solution, the diameter of the second through hole is smaller than the outer diameter of the sliding block, so the sliding block will not slide out of the second groove from the second through hole when sliding toward the direction of the second through hole. And in this technical solution, the inner side wall at the opening of the first blind hole is provided with a retaining ring in the circumferential direction, and the outer wall of the sliding block extending into the first blind hole is provided with an annular protrusion that can cooperate with the retaining ring to limit the position. Pushed by the first spring to slide away from the direction of the first blind hole until the end of the sliding block away from the first blind hole is against the inner wall of the second groove, the annular protrusion on the outer wall of the sliding block in the first blind hole will The outer wall of the block will be against the inner wall of the retaining ring, that is, the sliding block cannot fall off from the first blind hole.

As a preference: the first limiting structure includes an arc-shaped groove arranged in the arc-shaped through hole 6, the curvature of the arc-shaped groove is the same as that of the arc-shaped through hole 6, and the bending direction of the arc-shaped groove is the same as that of the arc-shaped through hole 6 are bent in the same direction, and the outer wall of the first arc-shaped sliding block 7 is provided with a limiting protrusion embedded in the arc-shaped groove and capable of sliding in the arc-shaped groove. When the first limiting protrusion is fully embedded in the first groove, the lower end of the first arc-shaped sliding block is completely slid into the arc-shaped through hole. When the first limiting protrusion is not embedded in the first groove, the lower end of the first arc-shaped sliding block slides toward the direction of the first groove until the lower end of the first arc-shaped sliding block completely extends out of the inner wall of the first groove, That is, at this time, the arc-shaped guide surface is located in the first groove, and the limiting protrusion on the outer side wall of the first arc-shaped sliding block is against the inner side wall at the lower end of the arc-shaped groove.

As a preference: the first arc-shaped sliding block 7 is a half-moon-shaped structure, and an arc-shaped through hole 6 is symmetrically provided on the left and right side walls of the first groove 4, and one end of the arc-shaped through hole 6 is connected to the inner side wall of the lower end of the first groove 4. The end of the through hole 6 away from the first groove 4 communicates with the outer wall of the middle part of the first base 3 .

As a preference, a second groove 12 for inserting the upper end of the first arc-shaped sliding block 7 is symmetrically provided on the left and right outer walls of the first positioning block 11 .

Claims (7)

1. The utility model provides a drain pipe of quick detach formula, includes first water pipe (1) and second water pipe (2), its characterized in that: the utility model discloses a water pipe, including first water pipe (2), second water pipe (2) up end, first base (3) up end is equipped with first recess (4), first recess (4) bottom surface center is equipped with intercommunication second water pipe (2) and can supplies first water pipe (1) lower extreme male first through-hole (5), first recess (4) inside wall circumference interval is equipped with arcuation through-hole (6) of a plurality of intercommunication first base (3) lateral walls, sliding connection has first arcuation sliding block (7) in arcuation through-hole (6), first arcuation sliding block (7) upper end stretches out first base (3) lateral wall, first arcuation sliding block (7) upper end is equipped with first barb (8), first arcuation sliding block (7) lower extreme is equipped with the first limit structure who prevents roll-off arcuation through-hole (6), first water pipe (1) lateral wall is equipped with the gliding actuating mechanism of control first base (7), first water pipe (1) lateral wall is equipped with the first buckle structure that can with first barb (8) looks adaptation, first water pipe (1) lateral wall is equipped with the control buckle structure or the control first water pipe buckle structure is equipped with first buckle.

2. The quick release drain pipe of claim 1, wherein: first actuating mechanism includes that circumference locates first water pipe (1) lower extreme lateral wall and can insert first annular protrusion (9) in first recess (4), first annular protrusion (9) are the columnar structure, first arcuation sliding block (7) lower extreme stretches out first recess (4) inside wall, first arcuation sliding block (7) lower extreme lateral wall is equipped with and orders about first arcuation sliding block (7) gliding first arcuation spigot surface (10) in arcuation through-hole (6) with first annular protrusion (9) cooperation.

3. The quick release type drain pipe according to claim 2, wherein: be located first water pipe (1) lateral wall circumference of first cyclic annular arch (9) top is equipped with first locating piece (11) of rectangle, first locating piece (11) lateral wall is equipped with and supplies first arcuation sliding block (7) upper end male second recess (12), sliding connection has first buckle structure in second recess (12), first buckle structure includes a lateral sliding connection sliding block (13) in second recess (12), first locating piece (11) lateral wall is equipped with gliding first control structure of control sliding block (13) in second recess (12).

4. A quick disconnect drain as claimed in claim 3, wherein: second recess (12) inside wall is equipped with first blind hole (14) that can supply sliding block (13) to slide in or the roll-off, first control structure includes first spring (15) of one end fixed connection in first blind hole (14) bottom surface, first blind hole (14) one end fixed connection sliding block (13) lateral wall is kept away from in first spring (15), first spring (15) one end fixedly connected with first connecting rod (16) are kept away from in sliding block (13), first locating piece (11) lateral wall is equipped with intercommunication second recess (12) inside wall and can supplies first connecting rod (16) to pass second through-hole (17) that stretch out first locating piece (11) lateral wall.

5. The quick release drain pipe of claim 1, wherein: the first limiting structure comprises an arc-shaped groove arranged in the arc-shaped through hole (6), the bending radian of the arc-shaped groove is the same as that of the arc-shaped through hole (6), the bending direction of the arc-shaped groove is the same as that of the arc-shaped through hole (6), and a limiting bump embedded in the arc-shaped groove and capable of sliding in the arc-shaped groove is arranged on the outer side wall of the first arc-shaped sliding block (7).

6. The quick release drain pipe of claim 1, wherein: first arcuation sliding block (7) are half moon column structure, first recess (4) left and right sides inside wall symmetry is equipped with an arcuation through-hole (6), first recess (4) lower extreme inside wall is communicate to arcuation through-hole (6) one end, first recess (4) one end intercommunication first base (3) middle part lateral wall is kept away from in arcuation through-hole (6).

7. A quick disconnect drain as claimed in claim 3, wherein: and the outer side walls of the left side and the right side of the first positioning block (11) are symmetrically provided with a second groove (12) for the upper end of the first arc-shaped sliding block (7) to insert.

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