CN107191604A - a leaking device - Google Patents

Abstract

A drainage device mainly comprises an adjusting screw, a connecting seat, a spring, a supporting screw, an expansion bag and a positioning sleeve. When the water in the expansion bag freezes, the expansion bag is expanded by the volume of the ice to overcome the tension of the spring and the pressure of the water to jack up the supporting screws and the adjusting screws, so that the water in the tap water pipeline flows into the accommodating cavity of the connecting seat and then flows away from the drain holes, and a strand of running water is generated in the tap water pipeline positioned at the upstream of the anti-freezing device, so that the tap water pipeline is not easy to freeze and is not easy to break.

Description

a leaking device

technical field

The invention relates to a discharge device capable of preventing freezing of tap water pipes.

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 object of the present invention is to provide a device capable of preventing freezing of tap water pipes.

The technical solution of the present invention is: a discharge device, which mainly includes an adjusting screw 1, a connecting seat 2, a spring 3, a supporting screw 4, an expansion bag 5, and a positioning sleeve 6; Connecting column, the center of the connecting column is provided with a screw hole matching the adjusting screw; the expansion bag is filled with water, the expansion bag is made of elastic material, and the expansion bag can expand and contract under the action of external force; The side wall is provided with a plurality of ventilation holes 61, and the bottom wall of the positioning sleeve is provided with more than one drainage hole 62; the connecting seat is provided with a central through hole, and the water inlet end of the connecting seat is connected to the side pipe of the tee. Threaded connection, the water outlet end of the connecting seat is threadedly connected with the top opening of the positioning sleeve; the water inlet end of the central through hole of the connecting seat and the nut of the adjusting screw form a nesting fit, and the water outlet part of the central through hole of the connecting seat expands outward Form a receiving chamber; the discharge device also includes a fine-tuning block 7 and a fine-tuning screw 8, the diameter of the fine-tuning block is greater than the end face of the expansion pack towards the bottom wall of the positioning sleeve, the diameter of the fine-tuning block is smaller than the diameter of the inner hole of the positioning sleeve, in the positioning sleeve The center of the bottom wall is provided with a screw hole through the bottom wall of the positioning sleeve, and the fine-tuning screw is screwed into the positioning sleeve from outside to inside according to the way the nut is outside; when assembling, insert the adjusting screw into the connecting seat from top to bottom, so that the nut of the adjusting screw It forms a nested fit with the water inlet end of the central through hole of the connection seat, and then puts the spring from the water outlet end of the connection seat onto the adjustment screw, so that the spring enters the accommodation cavity of the connection seat, and then screws the connecting column of the support screw on At the end of the adjusting screw, under the tension of the spring, the nut of the adjusting screw blocks the water inlet end of the connecting seat, then put the fine-tuning block and the expansion bag into the positioning sleeve in turn, and screw the positioning sleeve on the water outlet end of the connecting seat to make the fine-tuning The block is located between the expansion pack and the fine-tuning screw. Rotate the fine-tuning screw so that the end of the expansion pack away from the fine-tuning block is attached to the support screw. The side pass of the tee is on.

The positioning sleeve and the connecting seat are made of transparent plastic material.

The inner wall of the side passage of the tee is completely covered by the internal thread, and the outer wall of the water inlet end of the connection seat is provided with an external thread matching the internal thread of the side passage of the tee, and the connection seat and the side passage thread of the tee After the connection, the top wall of the connection seat can reach the straight-through inner wall of the tee.

Surrounding the connecting column of the support screw, a ring of spring grooves is arranged on the nut of the support screw, and one end of the spring enters the spring groove.

On the top of the nut of the adjusting screw, there is a slot matching a slotted screwdriver or a cross slot matching a cross screwdriver.

On the top of the nut supporting the screw, there is a slot matching with a slotted screwdriver or a cross slot matching with a cross screwdriver.

Beneficial effect:

1. When the water in the expansion bag freezes, the volume of the ice expands and the expansion bag elongates to overcome the tension of the spring and the pressure of the water to lift up the supporting screw and the adjusting screw, so that the water in the tap water pipe flows into the accommodation cavity of the connecting seat. Then flow away from the drain hole, so that a stream of running water is produced in the running water pipeline upstream of the anti-freezing device, so that the running water pipeline is not easy to freeze, and thus is not easy 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 the cross-sectional schematic diagram when the water in the capsule of the present invention does not freeze;

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

detailed description

As shown in FIGS. 1 to 4 , a discharge device mainly includes an adjusting screw 1 , a connecting seat 2 , a spring 3 , a supporting screw 4 , an expansion bag 5 , and a positioning sleeve 6 .

The middle part of the support screw is provided with an outwardly protruding connecting column, and the center of the connecting column is provided with a screw hole matching the adjusting screw. The expansion bag is filled with water, the expansion bag is made of elastic material, and the expansion bag can expand and contract under the action of external force.

A plurality of ventilation holes 61 are provided on the side wall of the positioning sleeve 6 , and more than one drainage hole 62 is provided on the bottom wall of the positioning sleeve. The connecting seat is provided with a central through hole, the water inlet end of the connecting seat is threadedly connected with the side pipe of the tee, the water outlet end of the connecting seat is threadedly connected with the top opening of the positioning sleeve; the water inlet end of the central through hole of the connecting seat It forms a nested fit with the nut of the adjusting screw, and the water outlet part of the central through hole of the connecting seat expands outwards to form an accommodation cavity; it also includes a fine-tuning block 7 and a fine-tuning screw 8, and the diameter of the fine-tuning block is larger than that of the expansion pack towards the bottom wall of the positioning sleeve. On the end face, the diameter of the fine-tuning block is smaller than the diameter of the inner hole of the positioning sleeve, and the center of the bottom wall of the positioning sleeve is provided with a screw hole that runs through the bottom wall of the positioning sleeve.

When assembling, insert the adjusting screw into the connecting seat from top to bottom, make the nut of the adjusting screw form a nested fit with the water inlet end of the central through hole of the connecting seat, and then put the spring on the adjusting screw from the water outlet end of the connecting seat , so that the spring enters the accommodation cavity of the connecting seat, and then screw the connecting column of the supporting screw on the end of the adjusting screw. Put the positioning sleeve in order, screw the positioning sleeve on the water outlet end of the connection seat, make the fine-tuning block between the expansion package and the fine-tuning screw, rotate the fine-tuning screw, make the end of the expansion package away from the fine-tuning block stick to the supporting screw, and the assembly is complete .

During the assembly process, use corresponding tools to insert the slots or cross grooves on the adjusting screw nut and the supporting screw nut at the same time, so that the adjusting screw or supporting screw is fixed, and then rotate the supporting screw or adjusting screw to make the adjusting screw and the supporting screw Screw thread connection.

The middle part of the connection seat is provided with an outwardly protruding hexagon, which is convenient for screwing the discharge device onto the tee.

Before use, screw the water inlet end of the connection seat on the side passage of the tee on the water pipe network system.

The positioning sleeve and the connecting seat are made of transparent plastic material. When assembling, you can watch the distance between the expansion package and the support screw and fine-tune the screw until the expansion package contacts the support screw before stopping the rotation.

When the water in the expansion bag freezes, the volume of ice is larger than the volume of water, which will make the expansion bag stretch. The expansion bag is restricted by the positioning sleeve and can only push against the support screw, and the support screw drives the adjusting screw connected to it to overcome The tension of the spring moves to the direction of the tee. When the nut of the adjusting screw leaves the water inlet of the side channel, a gap will be formed between the side channel and the adjusting screw, and the water in the tee will flow into the connection seat along the gap. The receiving cavity flows out from the drain hole on the bottom wall of the connecting sleeve.

When installing the discharge device, make the bottom wall of the connecting sleeve face down, so that when water flows into the connecting seat, it will flow down into the connecting sleeve under the action of gravity, and then flow out from the vent hole. Water will not accumulate, so that water will not flow out from the air holes on the side wall of the connecting sleeve. In practical applications, if the discharge device is installed outdoors, since the amount of outflowing water is small, and the water will only flow out after the ambient temperature drops to zero, the water may flow directly to the ground. If it is installed indoors, you need to place a water receiving basin or bucket under the tee pipe.

Since the positioning sleeve is exposed outside, the temperature change of the outside world can easily reach the outer wall of the expansion pack through the vent holes, so when the outside temperature drops to 0 degrees, the water in the expansion pack freezes earlier than the water in the tap water pipe, and once the water in the expansion pack When it freezes, it will expand, and the adjusting screw will be jacked up, so that the water in the water pipe network system will flow into the accommodation chamber of the connection seat from the side of the tee, and then flow out from the drain hole, forming a continuous stream of small water flow, so that The water in the tap water pipe network system upstream of the tee is not easy to freeze due to flow. When the external temperature rises, the ice in the expansion bag melts, and the volume of the expansion bag shrinks. Affected by the water pressure in the water pipe network system and the spring tension, the adjusting screw resets and blocks the water inlet of the connecting seat.

The adjusting screw, connecting seat, supporting screw and positioning sleeve are made of plastic.

The inner wall of the side passage of the tee is completely covered by the internal thread, and the outer wall of the water inlet end of the connection seat is provided with an external thread matching the internal thread of the side passage of the tee, and the connection seat and the side passage thread of the tee After the connection, the top wall of the connection seat can reach the straight-through inner wall of the tee.

Surrounding the connecting column of the support screw, a ring of spring grooves is arranged on the nut of the support screw, and one end of the spring enters the spring groove.

On the top of the nut of the adjusting screw, there is a slot matching a slotted screwdriver or a cross slot matching a cross screwdriver.

The expansion bag is a stretchable bag with multiple folds.

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 discharge device mainly includes an adjusting screw (1), a connecting seat (2), a spring (3), a supporting screw (4), an expansion bag (5), and a positioning sleeve (6); the supporting screw The middle part is provided with an outwardly protruding connecting column, and the center of the connecting column is provided with a screw hole matching the adjusting screw; the expansion bag is filled with water, and the expansion bag is made of elastic material, and the expansion bag can Telescopic; a plurality of ventilation holes (61) are provided on the side wall of the positioning sleeve (6), and more than one drainage hole (62) is provided on the bottom wall of the positioning sleeve; the connecting seat is provided with a central through hole , the water inlet end of the connecting seat is threadedly connected with the side pipe of the tee, the water outlet end of the connecting seat is threadedly connected with the top opening of the positioning sleeve; the water inlet end of the central through hole of the connecting seat is nested with the nut of the adjusting screw, The water outlet part of the central through hole of the connecting seat expands outwards to form an accommodation cavity; it is characterized in that it also includes a fine-tuning block (7) and a fine-tuning screw (8), the diameter of the fine-tuning block is larger than the end surface of the expansion pack facing the bottom wall of the positioning sleeve, The diameter of the fine-tuning block is smaller than the diameter of the inner hole of the positioning sleeve. There is a screw hole penetrating through the bottom wall of the positioning sleeve at the center of the bottom wall of the positioning sleeve. The screw is inserted into the connecting seat from top to bottom, so that the nut of the adjusting screw forms a nested fit with the water inlet end of the central through hole of the connecting seat, and then the spring is put on the adjusting screw from the water outlet end of the connecting seat, so that the spring enters the connection Then screw the connecting column of the supporting screw on the end of the adjusting screw, under the tension of the spring, the nut of the adjusting screw blocks the water inlet end of the connecting seat, and then put the fine-tuning block and the expansion bag into the positioning sleeve in turn , screw the positioning sleeve on the water outlet end of the connecting seat so that the fine-tuning block is located between the expansion pack and the fine-tuning screw, and rotate the fine-tuning screw so that the end of the expansion pack away from the fine-tuning block is attached to the support screw. After assembly, before use, place the The water inlet end of the connecting seat is screwed on the side passage of the tee on the tap water pipe network system. 2. The discharge device according to claim 1, wherein the positioning sleeve and the connecting seat are made of transparent plastic materials. 3. The discharge device according to claim 1, characterized in that: the inner wall of the side passage of the tee is completely covered by internal threads, and the outer wall of the water inlet end of the connecting seat is provided with an inner wall of the side passage of the tee. The thread matches the external thread, and after connecting the connecting seat with the side passage thread of the tee, the top wall of the connecting seat can reach the straight inner wall of the tee. 4. The discharge device according to claim 1, characterized in that: around the connecting column of the supporting screw, a spring groove is provided on the nut of the supporting screw, and one end of the spring enters the spring groove. 5 . The discharge device according to claim 1 , characterized in that: on the top of the nut of the adjusting screw, there is a slot matching with a flat screwdriver or a cross slot matching with a cross screwdriver. 6 . 6. The discharge device according to claim 1, characterized in that: on the top of the nut of the supporting screw, there is a flat slot matching with a flat screwdriver or a cross slot matching with a cross screwdriver.