CN212616937U - Self-discharging type interface for remote water supply system - Google Patents

Abstract

The utility model discloses a from formula of arranging long-range interface for water supply system relates to fire-fighting equipment technical field, and its technical scheme main points are: the connector comprises a connector body, a control ring and a locking ring, wherein a first pressure relief hole is formed in the connector body, the control ring is rotatably connected to the outer side of the connector body, a second pressure relief hole used for being communicated with the first pressure relief hole is formed in the side wall of the control ring, a sealing part corresponding to the first pressure relief hole is arranged on the inner side of the control ring, the sealing part abuts against or is far away from the outer wall of the connector body through an adjusting piece, and the first pressure relief hole can be sealed by the sealing part; the locking ring is detachably connected with the interface body. The water hoses to be connected are connected through the connector, and after the first pressure relief hole is sealed by the sealing part, the water hoses can be normally communicated; after the water hose is used, the control ring is rotated to enable the first pressure release hole to be communicated with the second pressure release hole, and the water hose and the water pressure in the joint are discharged from the first pressure release hole and the second pressure release hole, so that the aim of conveniently discharging the water pressure in the water hose is fulfilled.

Description

Self-discharging type interface for remote water supply system

Technical Field

The utility model relates to a fire-fighting equipment technical field, in particular to from formula of arranging long-range interface for water supply system.

Background

Because the hosepipe is the sectional type, need pass through fire control interface connection when the hosepipe is laid out and is used for the hosepipe can extend to the target area, and in the fire rescue in-process, whether the hosepipe can be quick-connect directly influences the promptness of fire control work.

After a water supply interface in the prior art is connected with a water band and is filled with water, high-speed water flow in the closed water band can form large water pressure in the water band, the interface connected with the water band is tightly supported under the action of the water pressure, water flow and water pressure still exist in the water band and the joint after the water band is used, the water pressure in the water band is not removed, and the water band connected with the interface is difficult to disassemble.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a from formula of arranging interface for long-range water supply system, it has can be comparatively convenient with the advantage that the interior water pressure of hosepipe unloaded.

The above technical purpose of the present invention can be achieved by the following technical solutions: an interface for a self-discharging type remote water supply system comprises an interface body, a control ring and a locking ring, wherein a first pressure relief hole is formed in the interface body, the control ring is rotatably connected to the outer side of the interface body, a second pressure relief hole used for being communicated with the first pressure relief hole is formed in the side wall of the control ring, a sealing part corresponding to the first pressure relief hole is arranged on the inner side of the control ring, the sealing part is abutted against or far away from the outer wall of the interface body through an adjusting piece, and the sealing part can seal the first pressure relief hole; the locking ring is detachably connected with the interface body.

According to the technical scheme, the water hoses to be connected are connected through the connector, and the control ring is rotated, so that the first pressure relief hole is sealed by the sealing part, and the water hoses connected with the connector can be normally supplied with water; after the water hose is used, the control ring is rotated reversely, so that the first pressure relief hole in the connector body is communicated with the second pressure relief hole in the control ring, the water hose and water flow in the connector are discharged from the first pressure relief hole and the second pressure relief hole together with water pressure, the air pressure in the water hose is balanced with the external air pressure, the connector is conveniently separated from the water hose, and the purpose of conveniently removing the water pressure in the water hose is achieved.

Preferably, a stroke groove is formed in the outer wall of the interface body, a limiting part is arranged on the side wall of the control ring, the inner end of the limiting part can stretch into the stroke groove and slide in the stroke groove, two end parts of the stroke groove are respectively used for opening a contact and closing the contact, the limiting part slides to the time of opening the contact, a first pressure relief hole is communicated with a second pressure relief hole, and the limiting part slides to the time of closing the contact, and the first pressure relief hole is sealed by the sealing part.

Through the technical scheme, the limiting piece rotates outside the interface body along with the control ring, meanwhile, the sealing part and the second pressure relief hole synchronously rotate along with the control ring, the inner end of the limiting piece slides in the stroke groove, when the limiting piece slides to the opening contact, the first pressure relief hole is communicated with the second pressure relief hole, and the sealing part rotates away from the first pressure relief hole along with the control ring; when the limiting part slides to the closed contact, the second pressure relief hole rotates away from the first pressure relief hole along with the control ring, and the first pressure relief hole is sealed by the sealing part, so that the second pressure relief hole is communicated with the first pressure relief hole or the first pressure relief hole is sealed by the sealing part by the control ring rotating for a fixed angle.

Preferably, a rolling groove is formed at the bottom of the stroke groove, a first positioning groove and a second positioning groove are formed at the bottom of the rolling groove, the first positioning groove is arranged at the opening contact point, and the second positioning groove is arranged at the closing contact point; the locating part includes limit bolt, limit bolt runs through from the outside the control ring, just limit bolt's pole portion stretch into and slide in the stroke inslot, the coaxial pretension groove of having seted up in limit bolt's pole portion, the pretension inslot is provided with the rolling member, the pretension inslot still is provided with and is used for supporting the rolling member in the pretension piece of rolling groove tank bottom, just the rolling member can be followed the tank bottom of rolling groove rolls to constant head tank one or constant head tank two.

According to the technical scheme, the rod part of the limiting bolt penetrates through the control ring from the outer side, the limiting bolt slides in the stroke groove, the pre-tightening piece in the pre-tightening groove applies pre-tightening force to the rolling piece, so that the rolling piece is abutted against the rolling groove, and when the limiting bolt rotates on the outer wall of the interface body along with the control ring, the rolling piece rolls in the rolling groove along with the sliding limiting bolt; when the rolling member rolls to the first positioning groove and the pre-tightening member pushes the rolling member into the first positioning groove, the control ring is difficult to continue to rotate, and the pressure relief hole is communicated with the first pressure relief hole; when the control ring is rotated reversely, large external force needs to be applied to the control ring, so that the rolling piece is separated from the first positioning groove and enters the rolling groove, the rolling piece rolls to the second positioning groove, when the pre-tightening piece pushes the rolling piece into the second positioning groove, the control ring is difficult to continue to rotate, and at the moment, the sealing part seals the first pressure relief hole; that is, when the rolling member enters the rolling groove from the first positioning groove or the second positioning groove, a larger external force is needed, so that the control ring is prevented from rotating by mistake due to the interference of water pressure or external factors in the interface.

Preferably, a guide part is arranged on the outer side of the interface body and used for guiding the rotation direction of the control ring.

Through above-mentioned technical scheme, the control ring passes through the guide part and rotates in the interface body outside to guarantee that pressure release hole one can lead to with pressure release hole two, or the sealing can be accurate with pressure release hole one sealed, and then improve the stability in this interface use.

Preferably, the outer wall of the interface body is provided with a track groove, the inner side of the control ring is provided with a holding groove, the holding groove is communicated with the track groove and forms a track cavity, the bottom of the holding groove is provided with a through hole, and a plug is detachably connected in the through hole; the guide part includes track chamber and a plurality of ball, a plurality of the ball fill and roll in the track intracavity, just the top of ball is located in the holding tank, the bottom of ball is located the track inslot.

According to the technical scheme, the control ring is sleeved on the outer side of the interface body, the accommodating groove is opposite to the track groove, so that a track cavity is formed between the accommodating groove and the track groove, the ball is filled into the track cavity from the through hole, the top end of the ball is positioned in the accommodating groove at the moment, and the bottom end of the ball is positioned in the track groove, so that the ball axially limits the control ring, and the control ring is prevented from being separated from the outer wall of the interface body; meanwhile, the ball can roll in the track cavity, in the rotating process of the control ring, the friction force generated between the ball and the control ring is small, and the mechanical abrasion of the ball to the accommodating groove and the track groove is small.

Preferably, the first pressure relief holes and the second pressure relief holes are waist-shaped holes, the number of the first pressure relief holes is provided with a plurality of pressure relief holes, the number of the second pressure relief holes corresponds to the number of the first pressure relief holes one to one, and the number of the sealing parts corresponds to the number of the first pressure relief holes one to one.

Through the technical scheme, the first pressure relief hole and the second pressure relief hole are both waist-shaped holes, and after the first pressure relief hole is communicated with the second pressure relief hole, the water pressure or water flow discharging efficiency in a water band can be effectively improved; the number of the first pressure relief holes and the number of the second pressure relief holes are both multiple, so that the water pressure removal efficiency in the water hose is further improved; meanwhile, the number of the sealing parts is changed along with the number of the first pressure relief holes, and the sealing parts are ensured to be enough to seal the first pressure relief holes.

Preferably, the inner side of the control ring is provided with a mounting groove, the sealing part comprises a sealing gasket arranged in the mounting groove, and the inner end surface of the sealing gasket is attached to the outer end surface of the interface body.

Through above-mentioned technical scheme, sealed the pad is fixed in the mounting groove, and sealed interior terminal surface of pad supports tightly with the outer terminal surface of interface body for sealed pad rotates the back along with the control ring, and sealed interior terminal surface of pad can be sealed with pressure release hole one.

Preferably, the mounting groove with be provided with the backing plate between the sealed pad, the UNICOM has been seted up to the outer wall of control ring the regulation hole of mounting groove, regulation hole in-connection has adjusting bolt, and the regulating part includes the backing plate and adjusting bolt, the top of adjusting bolt pole portion support tightly in the outer terminal surface of backing plate, adjusting bolt can with sealed pad support tightly in the outer wall of interface body.

Through the technical scheme, the adjusting bolt is connected in the adjusting hole, and the rod part of the adjusting bolt is tightly abutted against the outer end face of the base plate, so that the sealing gasket is indirectly pressed on the peripheral wall of the connector body, and the sealing performance of the sealing gasket on the first pressure relief hole is improved when the sealing gasket rotates to the first pressure relief hole; meanwhile, the adjusting bolt can adjust the gap between the sealing gasket and the interface body, so that the sealing gasket is prevented from being excessively abraded with the interface body in the rotating process.

Preferably, the outer wall of the control ring is provided with a reinforcing rib, and the adjusting hole is formed in the reinforcing rib.

Through the technical scheme, the adjusting holes are formed in the reinforcing ribs, so that the damage to the whole structure of the control ring is reduced, and the structural strength of the control ring is improved; meanwhile, the depth of the adjusting hole is indirectly increased, so that the length of the connecting part of the adjusting bolt and the adjusting hole is increased, and the adjusting bolt is not easy to damage.

Preferably, the end portions of the connector body and the locking ring are respectively provided with a first quick connector and a second quick connector, and the first quick connector and the second quick connector are both used for connecting a water hose.

Through the technical scheme, the water band to be connected is connected with the first quick connector, the other section of the water band to be connected is connected with the second quick connector, and the water band is connected with the second quick connector through the first quick connector, so that the water band can be quickly connected or detached conveniently.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. after the water hose is used, the first pressure relief hole is communicated with the second pressure relief hole by rotating the control ring, so that the air pressure inside the water hose is balanced with the external air pressure;

2. the first pressure relief hole and the second pressure relief hole are waist-shaped holes, so that the water pressure or water flow discharging efficiency in the water belt is effectively improved;

3. the adjusting bolt can adjust the clearance between sealed pad and the interface body to guarantee that sealed pad can not excessively wear and tear with the interface body at the pivoted in-process.

Drawings

FIG. 1 is a schematic diagram of an exploded structure of an embodiment, mainly used for showing the components of the embodiment;

FIG. 2 is a schematic diagram of an embodiment in full section, primarily showing the track cavity, mounting slot and adjustment holes;

FIG. 3 is a schematic view of the embodiment in full section, which is mainly used for showing the sealing portion, the limiting member and the plug;

FIG. 4 is a schematic diagram of an external structure of the embodiment, which is mainly used for showing the external structure of the embodiment;

FIG. 5 is a schematic diagram of an embodiment of an interface body, which is mainly used for showing the structure of the interface body;

FIG. 6 is a schematic sectional view taken along line A-A in FIG. 5, and is primarily used to show the structure of the travel slots;

FIG. 7 is an external view of the embodiment;

FIG. 8 is a schematic sectional view taken along line B-B in FIG. 7, which is mainly used to show the structure of the limit bolt;

FIG. 9 is an external view of the embodiment;

fig. 10 is a schematic sectional view of C-C in fig. 9, which is mainly used to show the structure of the gasket and the backing plate.

Reference numerals: 100. an interface body; 110. a first pressure relief hole; 120. a stroke slot; 121. opening a contact; 1211. positioning a first groove; 122. closing the contact; 1221. positioning a second groove; 123. a rolling groove; 130. a track groove; 140. a first quick connector; 200. a control loop; 210. a second pressure relief hole; 220. a sealing part; 230. a limiting member; 231. a limit bolt; 2311. pre-tightening the groove; 2312. a rolling member; 2313. pre-tightening piece; 240. accommodating grooves; 241. a through hole; 2411. a plug; 250. mounting grooves; 251. a gasket; 252. a base plate; 260. an adjustment hole; 261. adjusting the bolt; 270. reinforcing ribs; 280. a wrench fixing block; 300. locking a ring; 310. a second quick connector; 400. an adjustment member; 500. a guide portion; 510. a track cavity; 520. and a ball.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

An interface for a self-discharging type remote water supply system is shown in fig. 1 to 10 and comprises an interface body 100, a control ring 200 and a locking ring 300, wherein a first pressure relief hole 110 is formed in the interface body 100, the control ring 200 is rotatably connected to the outer side of the interface body 100, a second pressure relief hole 210 used for communicating with the first pressure relief hole 110 is formed in the side wall of the control ring 200, a sealing part 220 corresponding to the first pressure relief hole 110 is arranged on the inner side of the control ring 200, the sealing part 220 is abutted against or far away from the outer wall of the interface body 100 through an adjusting part 400, and the sealing part 220 can seal the first pressure relief hole 110; the locking ring 300 is connected to the interface body 100 by a snap or screw connection. The first quick coupling 140 and the second quick coupling 310 are respectively disposed at the end of the connector body 100 and the end of the locking ring 300, the first quick coupling 140 and the second quick coupling 310 are both used for connecting a hose, and the first quick coupling 140 and the second quick coupling 310 are both common quick couplings in the prior art.

The outer wall of the interface body 100 is provided with an annular stroke slot 120, the side wall of the control ring 200 is provided with a limiting member 230, the inner end of the limiting member 230 can extend into and slide in the stroke slot 120, two end portions of the stroke slot 120 are respectively an opening contact 121 and a closing contact 122, when the limiting member 230 slides to the opening contact 121, the first pressure relief hole 110 is communicated with the second pressure relief hole 210, and when the limiting member 230 slides to the closing contact 122, the first pressure relief hole 110 is sealed by the sealing portion 220.

As shown in fig. 5, preferably, the rolling groove 123 is formed at the bottom of the stroke groove 120, the first positioning groove 1211 and the second positioning groove 1221 are formed at the bottom of the rolling groove 123, the first positioning groove 1211 is disposed at the opening contact 121, and the second positioning groove 1221 is disposed at the closing contact 122; the limiting member 230 includes a limiting bolt 231, the limiting bolt 231 penetrates through the control ring 200 from the outside, a rod portion of the limiting bolt 231 extends into and slides in the stroke groove 120, a pre-tightening groove 2311 is coaxially formed in the rod portion of the limiting bolt 231, a rolling member 2312 is arranged in the pre-tightening groove 2311, the rolling member 2312 is preferably a circular bead, a pre-tightening member 2313 used for enabling the rolling member 2312 to abut against the bottom of the rolling groove 123 is further arranged in the pre-tightening groove 2311, the pre-tightening member 2313 is preferably a spring, and the rolling member 2312 can roll to the first positioning groove 1211 or the second positioning groove 1221 along the bottom of the rolling groove 123 in the rotating process of the control ring 200.

Alternatively, the position-limiting member 230 may be a common block or bolt, as long as the position-limiting member 230 can limit the rotation angle of the control ring 200.

The guide part 500 is provided outside the interface body 100, and the guide part 500 guides the rotation direction of the control ring 200.

Specifically, the outer wall of the interface body 100 is provided with a track groove 130, the inner side of the control ring 200 is provided with an accommodating groove 240, the accommodating groove 240 is communicated with the track groove 130 and forms a track cavity 510, the bottom of the accommodating groove 240 is provided with a through hole 241, a plug 2411 is detachably connected in the through hole 241, and the plug 2411 can be a set screw or a common plug; the guide part 500 includes a track cavity 510 and a plurality of balls 520, the balls 520 may be round balls made of steel balls or other hard materials, the plurality of balls 520 are filled in the track cavity 510 through the through holes 241 and roll therein, the top ends of the balls 520 are located in the receiving grooves 240, and the bottom ends of the balls 520 are located in the track grooves 130.

At least two rail grooves 130 are formed in the rail groove 130, the two rail grooves 130 are arranged in parallel, and the number of the accommodating grooves 240 increases along with the number of the rail grooves 130 and cooperates with the rail grooves 130 to form a new rail cavity 510, so as to ensure stability of the control ring 200 during rotation.

Alternatively, the guiding portion 500 may be a space between the first quick connector 140 and the second quick connector 310, and the control ring 200 rotates between the first quick connector 140 and the second quick connector 310, so that the first quick connector 140 and the second quick connector 310 cooperate to axially limit the control ring 200; the guiding portion 500 may also be another guiding device commonly used in the prior art, as long as when the limiting member 230 rotates to open the contact 121, the first pressure release hole 110 is communicated with the second pressure release hole 210, and when the limiting member 230 slides to close the contact 122, the first pressure release hole 110 is sealed by the sealing portion 220.

The first pressure relief hole 110 and the second pressure relief hole 210 are all waist-shaped holes, or the first pressure relief hole 110 and the second pressure relief hole 210 are all holes with other large apertures, the number of the first pressure relief holes 110 is provided, the number of the second pressure relief holes 210 corresponds to the number of the first pressure relief holes 110 one to one, and the number of the sealing parts 220 corresponds to the number of the first pressure relief holes 110 one to one.

As shown in fig. 1, 2 and 10, the control ring 200 has a mounting groove 250 formed therein, the sealing portion 220 includes a gasket 251 disposed in the mounting groove 250, an inner end surface of the gasket 251 can abut against an outer end surface of the interface body 100, and a material of the gasket 251 is preferably a soft rubber material.

Preferably, a gasket 252 is arranged between the mounting groove 250 and the gasket 251, the gasket 252 may be made of a hard material or a metal material, the outer wall of the control ring 200 is provided with an adjusting hole 260 communicated with the mounting groove 250, the adjusting hole 260 is connected with an adjusting bolt 261 through an internal thread, the adjusting member 400 includes the gasket 252 and the adjusting bolt 261, the top end of the rod portion of the adjusting bolt 261 abuts against the outer end surface of the gasket 252, when the adjusting bolt 261 is screwed towards the interface body 100, the gasket 252 pushes the gasket 251 to abut against the outer wall of the interface body 100, and when the adjusting bolt 261 is unscrewed, the gap between the gasket 251 and the outer wall of the interface body 100 is increased.

The outer wall of the control ring 200 is provided with a stiffener 270, and the adjustment holes 260 are opened on the stiffener 270. The adjusting holes 260 are formed at intervals, and the number of the adjusting bolts 261 corresponds to the number of the adjusting holes 260 one to one.

As shown in fig. 9, a plurality of wrench fixing blocks 280 are spaced outside the control ring 200, and the wrench fixing blocks 280 are used for driving the control ring 200 to rotate after being clamped by a wrench. To further ensure the structural strength of the control ring 200, the reinforcing rib 270 is in contact with the wrench fixing block 280 and is integrally formed.

The working principle of the interface for the self-draining remote water supply system is as follows:

the assembly of this interface: the cushion plate 252 is placed in the mounting groove 250, the sealing gasket 251 is placed on the cushion plate 252, and the adjusting bolt 261 is screwed into the adjusting hole 260, so that the rod part of the adjusting bolt 261 is in contact with the end face of the cushion plate 252; sleeving the control ring 200 on the outer side of the interface body 100, so that the accommodating groove 240 is opposite to the track groove 130 to form a track cavity 510, filling a plurality of balls 520 into the track cavity 510 from the through holes 241, and sealing the plurality of balls 520 in the track cavity 510 through plugs 2411; screwing the adjusting bolt 261, so that the adjusting bolt 261 pushes the pad 252 and the gasket 251 to approach the interface body 100, and the gasket 251 abuts against the outer wall of the interface body 100; the pre-tightening piece 2313 and the rolling piece 2312 are sequentially placed into the pre-tightening groove 2311, the limiting bolt 231 is connected to the control ring 200 from the outer side through threads, the rod part of the limiting bolt 231 extends into the stroke groove 120, the pre-tightening piece 2313 applies pre-tightening force to the rolling piece 2312, the bottom end of the rolling piece 2312 abuts against the bottom of the rolling groove 123, and the control ring 200 is assembled;

the locking ring 300 is screwed on the interface body 100, and in order to ensure the sealing performance between the interface body 100 and the locking ring 300, a sealing ring can be placed at the joint of the interface body 100 and the locking ring 300, and the interface is assembled.

The water hose to be connected is clamped with the first quick connector 140, the other water hose to be connected is clamped with the second quick connector 310, the control ring 200 is rotated, the limiting bolt 231 is rotated to close the contact 122, the limiting bolt 231 drives the rolling piece 2312 to roll into the second positioning groove 1221, as the pre-tightening piece 2313 exerts pre-tightening force on the rolling piece 2312 all the time, the rolling piece 2312 is separated from the second positioning groove 1221, large external force is needed, the control ring 200 is difficult to rotate at the moment, and the first pressure relief hole 110 is sealed by the 251 sealing gasket, so that the water hose can be normally filled with water;

after the water hose is used, the control ring 200 is rotated reversely, so that the limiting bolt 231 rotates to the opening contact 121, the limiting bolt 231 drives the rolling piece 2312 to roll into the first positioning groove 1211, at the moment, the first pressure relief hole 110 is communicated with the second pressure relief hole 210, water flow and water pressure in the water hose can be discharged from the second pressure relief hole 210, air pressure in the water hose is balanced with external air pressure, and the purpose that the water pressure in the water hose is conveniently removed is achieved.

After the air pressure in the water hose is balanced with the air pressure in the outside, the connector and the water hose can be separated easily.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims (10)

1. The utility model provides a self-draining formula is interface for remote water supply system which characterized in that: the connector comprises a connector body (100), a control ring (200) and a locking ring (300), wherein a first pressure relief hole (110) is formed in the connector body (100), the control ring (200) is rotatably connected to the outer side of the connector body (100), a second pressure relief hole (210) used for communicating with the first pressure relief hole (110) is formed in the side wall of the control ring (200), a sealing part (220) corresponding to the first pressure relief hole (110) is arranged on the inner side of the control ring (200), the sealing part (220) is abutted against or far away from the outer wall of the connector body (100) through an adjusting piece (400), and the sealing part (220) can seal the first pressure relief hole (110); the locking ring (300) is detachably connected with the interface body (100).

2. The interface for a self-draining remote water supply system as claimed in claim 1, wherein: the outer wall of the interface body (100) is provided with a stroke groove (120), the side wall of the control ring (200) is provided with a limiting piece (230), the inner end of the limiting piece (230) can extend into and slide in the stroke groove (120), two ends of the stroke groove (120) are respectively an opening contact (121) and a closing contact (122), when the limiting piece (230) slides to the opening contact (121), a first pressure relief hole (110) is communicated with a second pressure relief hole (210), and when the limiting piece (230) slides to the closing contact (122), the first pressure relief hole (110) is sealed by the sealing part (220).

3. The interface for a self-draining remote water supply system as claimed in claim 2, wherein: a rolling groove (123) is formed at the bottom of the stroke groove (120), a first positioning groove (1211) and a second positioning groove (1221) are formed at the bottom of the rolling groove (123), the first positioning groove (1211) is arranged at the opening contact (121), and the second positioning groove (1221) is arranged at the closing contact (122); the limiting part (230) comprises a limiting bolt (231), the limiting bolt (231) penetrates through the control ring (200) from the outer side, the rod part of the limiting bolt (231) extends into the stroke groove (120) and slides in the stroke groove, a pre-tightening groove (2311) is coaxially formed in the rod part of the limiting bolt (231), a rolling part (2312) is arranged in the pre-tightening groove (2311), a pre-tightening part (2313) used for enabling the rolling part (2312) to abut against the bottom of the rolling groove (123) is further arranged in the pre-tightening groove (2311), and the rolling part (2312) can roll to the first positioning groove (1211) or the second positioning groove (1221) along the bottom of the rolling groove (123).

4. The interface for a self-draining remote water supply system as claimed in claim 1, wherein: the outer side of the interface body (100) is provided with a guide part (500), and the guide part (500) is used for guiding the rotation direction of the control ring (200).

5. The interface for a self-draining remote water supply system as claimed in claim 4, wherein: the outer wall of the interface body (100) is provided with a track groove (130), the inner side of the control ring (200) is provided with a holding groove (240), the holding groove (240) is communicated with the track groove (130) and forms a track cavity (510), the bottom of the holding groove (240) is provided with a through hole (241), and a plug (2411) is detachably connected in the through hole (241); the guide part (500) comprises the track cavity (510) and a plurality of balls (520), wherein the balls (520) are filled and roll in the track cavity (510), the top ends of the balls (520) are positioned in the accommodating groove (240), and the bottom ends of the balls (520) are positioned in the track groove (130).

6. The interface for a self-draining remote water supply system as claimed in claim 1, wherein: the first pressure relief hole (110) and the second pressure relief hole (210) are waist-shaped holes, the number of the first pressure relief holes (110) is provided with a plurality of pressure relief holes, the number of the second pressure relief holes (210) corresponds to the number of the first pressure relief holes (110), and the number of the sealing parts (220) corresponds to the number of the first pressure relief holes (110).

7. The interface for a self-draining remote water supply system as claimed in claim 1, wherein: the inner side of the control ring (200) is provided with a mounting groove (250), the sealing part (220) comprises a sealing gasket (251) arranged in the mounting groove (250), and the inner end face of the sealing gasket (251) is attached to the outer end face of the interface body (100).

8. The interface for a self-draining remote water supply system as claimed in claim 7, wherein: mounting groove (250) with be provided with backing plate (252) between sealed pad (251), the UNICOM has been seted up to the outer wall of control ring (200) regulation hole (260) of mounting groove (250), regulation hole (260) in-connection has adjusting bolt (261), and regulating part (400) include backing plate (252) and adjusting bolt (261), the top of adjusting bolt (261) pole portion support tightly in the outer terminal surface of backing plate (252), adjusting bolt (261) can with sealed pad (251) support tightly in the outer wall of interface body (100).

9. The interface for a self-draining remote water supply system as claimed in claim 8, wherein: the outer wall of control ring (200) is provided with strengthening rib (270), just regulation hole (260) are seted up in on strengthening rib (270).

10. The interface for a self-draining remote water supply system as claimed in claim 1, wherein: the end parts of the connector body (100) and the locking ring (300) are respectively provided with a first quick connector (140) and a second quick connector (310), and the first quick connector (140) and the second quick connector (310) are used for connecting a water hose.

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