CN106838337A - A joint with a capsule - Google Patents

Abstract

The utility model provides a take joint of bag, mainly includes to connect, the water valve, a spring, the adjusting screw, bag package and bag canning are constituteed, when the water in the bag package freezes, the water valve is propped up in bag package extension to the volume inflation of ice makes the rivers in the water pipeline advance the connector, receives the jam effect of piston plate, and the water that gets into the connector can only flow away from the drain pipe of connector side to make the water in the water pipeline of joint upper reaches be in the mobile state, thereby difficult freezing messenger's water pipe takes place to break.

Description

A joint with a capsule

technical field

The invention relates to a joint with a bladder capable of preventing water pipes from freezing.

Background technique

When the ambient temperature drops below zero in winter, water pipes or water meters often break due to freezing, resulting in a lot of maintenance work, not only large property losses, but also high maintenance costs and difficult maintenance. Therefore, need to find a kind of device that can prevent running water pipeline from freezing.

Therefore, need to find a kind of device that can prevent running water pipeline from freezing.

Contents of the invention

The purpose of the present invention is: provide a kind of device that can prevent tap water pipeline from freezing.

The technical solution of the present invention is: a joint with a bladder, which mainly includes a joint, a water valve 1, a spring 2, an adjustment screw 3, a bladder 4 and a bladder cover 5, and the side wall of the bladder is provided with a plurality of Stretch folds, the bag is filled with water, the joint is connected to the tap water pipe through the threads at both ends, and a plurality of air holes 51 are provided on the bag cover; The connection with the joint is provided with an inwardly protruding flange 61, and a drain pipe 62 is provided on the side of the joint; the water valve is composed of a water valve cone and a water valve stem. The joint is inserted into the inner hole of the connector head, and the end of the flange located in the tap water pipe forms a tight fit with the water valve cone of the water valve. Holes; the adjusting screw is composed of a nut and a screw rod, and the anti-icing joint also includes a piston plate 7, the outer diameter of the piston plate is greater than the inner diameter of the connecting head, and the piston plate is sleeved on the screw rod of the adjusting screw through the central through hole, and then the adjusting The screw rod of the screw is screwed into the adjustment hole on the water valve rod, so that one end of the spring is against the flange, and the other end is against the piston plate. In the initial state, the tension of the spring makes the water valve cone of the water valve and the flange A tight fit is formed towards the open end of the joint, the piston plate leaves the joint, the bladder is put into the sleeve, and then the sleeve is screwed to the joint so that the bladder is tightly attached to the nut of the adjusting screw; when the ambient temperature drops When it is below zero, the water in the bladder freezes to make the bladder elongate, and the elongation of the bladder will push the assembled adjustment screw, piston plate and water valve towards the joint, so that the piston plate will move towards the connector. The water valve taper of the water valve is separated from the flange, and a gap is formed between the water valve and the flange, and the water in the joint flows into the connector from the gap between the water valve and the flange, and then flows away from the drain pipe. All the water in the bladder freezes, which presses the piston plate against the connector.

The spring is a tower spring, the bottom of the tower is against the flange, and the top of the tower is against the piston plate.

The piston plate forms a tight fit with the inner hole of the capsule sheath.

In the central through hole of the piston plate, there is a circle of outwardly sunken central sealing grooves, and around the side walls of the piston plate, there is a circle of inwardly sunken outer wall sealing grooves. The outer wall sealing ring is embedded in the groove.

When the water in the capsule is liquid, the maximum diameter of the capsule is 1-3mm smaller than the diameter of the inner hole of the capsule cover. When the water in the capsule freezes, the capsule only Can extend in the direction of the joint.

Beneficial effect:

1. When the water in the capsule freezes, the volume of the ice expands to make the capsule stretch and lift up the water valve, so that the water in the tap water pipe flows into the connector. Due to the blockage of the piston plate, the water entering the connector can only It flows away from the drain pipe on the side of the connector, so that the water in the tap water pipe upstream of the connector is in a flowing state, so that it is not easy to freeze and cause the water pipe to rupture.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is exploded figure of the present invention;

Fig. 3 is a schematic cross-sectional view when the water in the capsule of the present invention is not frozen;

Fig. 4 is a schematic cross-sectional view of the water in the capsule of the present invention when it freezes.

detailed description

As shown in Figures 1 to 4, a joint with a bladder mainly includes a joint, a water valve 1, a spring 2, an adjustment screw 3, a bladder 4 and a bladder cover 5, and the side wall of the bladder is provided with multiple In the initial state, the pouch is filled with water, and the folds of the pouch are slightly stretched. The joint is connected to the water pipe through the threads at both ends. a ventilation hole 51. When the temperature of the environment drops below zero, the bladder is more likely to freeze earlier than the water in the water pipe because it is positioned outside the water pipe and can directly contact the air of the outside through the air vent. Since there are wrinkles on the capsule, more space can be formed between the capsule and the capsule cover, so that the outside air can be more in contact with the wall of the capsule, so that it is easier to freeze.

The capsule wall is made of metal sheet or rubber sheet, preferably metal sheet, because the metal sheet is easy to transfer heat, when the external temperature changes, it can timely transfer the external temperature change to the water in the capsule.

The middle part of the joint is provided with an outwardly protruding connector 6, an inwardly protruding flange 61 is provided at the connection between the connector and the joint, and a drain pipe 62 is provided on the side of the connector; the water valve is composed of a water valve cone and a water valve. The water valve cone is located in the joint, the water valve stem is inserted into the inner hole of the joint head from the joint, the end of the flange located in the tap water pipe is tightly matched with the water valve cone of the water valve, and the spring sleeve is in the water valve. On the rod, an adjustment hole with internal thread is provided on the water valve rod; the adjustment screw consists of a nut and a screw rod, and the anti-freezing joint also includes a piston plate 7, the outer diameter of the piston plate is greater than the inner hole diameter of the connector, and the piston plate Put the screw rod of the adjustment screw through the center through hole, and then screw the screw rod of the adjustment screw into the adjustment hole on the water valve stem, so that one end of the spring is against the flange, and the other end is against the piston plate, and the adjustment screw , The piston plate and the water valve are assembled together. In the initial state, the tension of the spring makes the water valve cone of the water valve form a tight fit with the opening end of the flange facing the joint, and the piston plate leaves the joint to make the tension of the spring work. , Tighten the adjusting screw a little bit, so that the spring has a certain degree of compression, so as to enhance the initial tension of the spring. Then put the pouch into the pouch cover, then thread the pouch cover and the connector, and adjust the position of the pouch cover on the connector so that the top wall of the pouch is close to the nut of the adjusting screw.

When the ambient temperature is greater than zero, the water in the tap water pipe and the water in the bag will not freeze, and the water pressure in the tap water pipe is relatively high, which will press the water valve cone of the water valve against the flange , therefore, the water in the tap water pipe will not flow into the connector. That is, when the ambient temperature is greater than zero, the anti-icing joint only plays the role of an ordinary water pipe joint, and when the ambient temperature is lower than zero, the anti-icing joint will prevent the tap water pipe from freezing.

When the ambient temperature drops below zero, the water in the bladder freezes and expands in volume, thereby making the bladder elongate, and the elongation of the bladder pushes the assembled adjustment screw, piston plate and water valve toward the joint. Make the piston plate move towards the connecting head, make the water valve cone of the water valve leave the flange, create a gap between the water valve and the flange, and the water in the joint flows into the connecting head from the gap between the water valve and the flange, Blocked by the piston plate, the water can only flow away from the drain pipe. The drain pipe is connected to the drainage system through the pipe, and the water is discharged into the drainage system, so that the water in the joint and the tap water pipe upstream of the joint is in a flowing state, thereby Not easy to freeze.

When all the water in the bladder freezes, it will push the piston plate against the connector.

The spring is a tower spring, the bottom of the tower is against the flange, and the top of the tower is against the piston plate.

The inner hole of the piston plate and the bag cover forms a tight fit, so that the water cannot flow from the gap between the piston plate and the bag cover to the bottom of the piston plate, and the ice in the bag is prevented from melting when the water flows through the surface of the bag.

In the central through hole of the piston plate, there is a circle of outwardly sunken central sealing grooves, and around the side walls of the piston plate, there is a circle of inwardly sunken outer wall sealing grooves. The outer wall sealing ring is embedded in the groove. The central sealing ring prevents water flow from flowing to the bladder from the gap between the central through hole of the piston plate and the screw rod, and the outer wall sealing ring prevents water flow from flowing to the bladder from the gap between the piston plate and the piston sleeve.

The air holes are elongated holes or round holes. When the water in the capsule is liquid, the maximum diameter of the capsule is 1-3mm smaller than the diameter of the inner hole of the capsule cover. When the water in the capsule is frozen, the capsule can only extend to both sides, and the The position-limiting effect of the sleeve makes the capsule only extend toward the direction of the joint.

When the ambient temperature rises above zero, the ice in the capsule gradually melts, and the length of the capsule gradually shrinks, and the tension of the spring pushes the assembled water valve, piston plate and adjusting screw toward the capsule, thereby The water valve cone of the water valve is pressed against the flange, so that the water in the joint can no longer flow into the joint.

The aperture of the drainpipe is much smaller than the aperture of the joint, and the main effect is to make the water in the tap water pipe upstream of the joint flow, so that it is not easy to freeze.

Since the water meter on the tap water pipe is easy to break when it freezes, installing an anti-freezing joint downstream of the water meter can prevent the water meter from breaking.

The above-mentioned embodiments are only used to illustrate and explain the purpose of the present invention, rather than to limit the present invention. Those of ordinary skill in the art may make various changes or substitutions within the essential scope of the present invention, which shall also belong to the present invention. scope of protection for inventions.

Claims (6)

1. a kind of joint with Nang Bao, it is characterised in that：Mainly include joint, water valve (1), spring (2), set screw (3), capsule Bag (4) and capsule jacket (5) composition, Nang Bao sides wall are provided with multiple fold that can be stretched, water are full of in capsule bag, and joint passes through Being threaded on water supply pipe for two ends, is provided with multiple air-vents (51) on capsule jacket；Joint middle part is provided with to evagination The connector (6) for going out, inwardly projecting bead (61) is provided with connector and fittings, and draining is provided with connector side Pipe (62)；Water valve is made up of water valve bullet and water valve stem, and water valve bullet is located in joint, water valve stem company of reeve from joint In coupler bore, one end that bead is located in water supply pipe forms tight fit with the water valve bullet of water valve, and spring housing is in water On valve rod, tapped adjustment hole is provided with water valve stem；By nut and screw rod, anti-freeze joint also includes living set screw Seben (7), the diameter of bore of the external diameter more than connector of piston plate, piston plate is enclosed within the screw rod of set screw by central through hole On, then the screw rod of set screw is screwable into the adjustment hole on water valve stem, and one end of spring is against in bead, the other end is supported On piston plate, during original state, tension force of spring makes the water valve bullet of water valve and bead be formed towards the openend of joint Tight fit, piston plate leaves connector, puts Nang Bao into capsule jackets, then capsule jacket is threadedly coupled with connector, packs tightly capsule Paste the nut of set screw；When environment temperature is dropped to it is subzero when, the water freezing in capsule bag extends Nang Bao, and Nang Bao elongations will be by Set screw, piston plate and the water valve for fitting together are pushed up to the direction of joint, piston plate is moved to connector, make water valve Water valve bullet leave bead, space is produced between water valve and bead, sky of the water in joint between water valve and bead Clearance flow enters connector, then is flowed away from drainpipe, when the water freeze in capsule bag, will push against onto connector piston plate.

2. the joint with Nang Bao according to claim 1, it is characterised in that：Described spring is turriform spring, and bottom of towe is supported In bead, tower top is against on piston plate.

3. the joint with Nang Bao according to claim 1, it is characterised in that：Piston plate forms close-fitting with the endoporus of capsule jacket Close.

4. the joint with Nang Bao according to claim 1, it is characterised in that：A circle is provided with the central through hole of piston plate Outwards the central seal groove of depression, is provided with the outer wall seal groove that a circle caves inward, at center around four the week side of boss walls of piston plate Installation center sealing ring in seal groove, the outer wall sealing ring on setting-in in outer wall seal groove.

5. the joint with Nang Bao according to claim 1, it is characterised in that：When the water in capsule bag is liquid, Nang Bao's Less than the diameter of bore 1-3mm of capsule jacket, when the water freezing in capsule bag, the position-limiting action of receptaculum jacket makes capsule to maximum gauge Bag can only extend to the direction of joint.

6. the joint with Nang Bao according to claim 1, it is characterised in that：Described capsule containment wall is made using sheet metal.