CN213236202U

CN213236202U - Check valve for building water supply

Info

Publication number: CN213236202U
Application number: CN202020945274.9U
Authority: CN
Inventors: 张方龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-05-18
Anticipated expiration: 2030-05-29

Abstract

The utility model belongs to the technical field of the check valve for the building feedwater, especially, be a check valve for building feedwater, including the check valve body, the pressure cover plate has been placed at the top of check valve body, and the circular sleeve of bottom fixedly connected with of pressure cover plate, circular sleeve is located the inside of check valve body, the top screw thread cover of pressure cover plate is equipped with fastening bolt, and fastening bolt's bottom extends to the inside of check valve body, the inside screw thread cover of pressure cover plate is equipped with the secondary extrusion spare, circular sleeve's inside movable sleeve is equipped with the non return pole. The sealing ring which can be in close contact with the check plate is arranged in the check valve body and outside the check plate, and the magnet is arranged in the check plate, so that the magnet can be adsorbed with the check valve body, the sealing effect is better, water return in the using process is prevented, the secondary extrusion piece can be used for limiting the check rod secondarily, and the water stop effect is improved.

Description

Check valve for building water supply

Technical Field

The utility model belongs to the technical field of the check valve for the building feedwater, concretely relates to check valve for building feedwater.

Background

The check valve is a valve whose opening and closing member is a circular valve flap and acts by self weight and medium pressure to block medium backflow, belonging to the automatic valve class, also called check valve, one-way valve, backflow valve or isolating valve, the valve flap motion mode is divided into lift type and swing type, the lift type check valve is similar to the structure of the isolating valve, only lacks a valve rod for driving the valve flap, the medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side), when the inlet pressure is greater than the sum of the weight of the valve flap and the flow resistance thereof, the valve is opened, otherwise, the valve is closed when the medium flows backwards, the swing type check valve has a valve flap which is obliquely arranged and can rotate around the shaft, the working principle is similar to the lift type check valve, the check valve is used as the bottom valve of the water pumping device, the backflow of water can be blocked, the check valve is combined with the isolating valve, water is required to be supplied to the check valve body, and in order to ensure normal water supply, research on the check valve body for construction is required.

The prior art has the following problems:

1. after the existing check valve for building water supply is used for a long time, the internal sealing effect of the valve body is poor, so that the check effect is poor;

2. when the internal components of the check valve are damaged, it is difficult to repair the interior thereof, and a new valve body needs to be replaced, wasting resources.

In order to solve the problems, the application provides a check valve for building water supply.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a check valve for building feedwater has solved the technical problem who proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a check valve for building water supply comprises a check valve body, an upper gland plate is arranged at the top of the check valve body, and the bottom of the upper gland plate is fixedly connected with a round sleeve which is positioned inside the check valve body, the top of the upper gland plate is sheathed with a fastening bolt through a thread, the bottom end of the fastening bolt extends into the check valve body, the internal thread of the upper pressure cover plate is sleeved with a secondary extrusion piece, a check rod is movably sleeved in the circular sleeve, the bottom end of the check rod extends to the inner cavity of the check valve body and is highly connected with a check plate, the top end of the round sleeve is fixedly connected with a sliding block positioned in the round sleeve, the inner cavity of the check valve body is clamped with a sealing ring positioned right below the check plate, the bottom of the check valve body is fixedly sleeved with a positioning sleeve, and the bottom of the positioning sleeve is sleeved with a pressing cover plate through a fastening bolt thread.

As the utility model discloses a check valve for building water supply is preferred, the secondary extrusion piece includes compressing tightly pole, stripper plate and knob handle; the pressing rod is sleeved inside the upper pressing cover plate in a threaded mode, the bottom end of the pressing rod extends to the inside of the circular sleeve and is fixedly connected with the extrusion plate, and the top end of the pressing rod is fixedly connected with a knob handle located above the upper pressing cover plate.

As the utility model relates to a check valve is preferred for building feedwater, nested all around of check plate has magnet, and magnet flushes mutually with the periphery of check plate.

As the utility model relates to a check valve is preferred for building feedwater, waterproof paint has all been paintd to the outside of the inside circular sleeve of check valve body, non return pole, sliding block and non return board.

As the utility model relates to a check valve is preferred for building feedwater, the outside of sealing washer top check plate is provided with the rubber ring, and the inside of sealing washer and the outside rubber ring of check plate contact each other.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the sealing ring which can be in close contact with the check plate is arranged in the check valve body and outside the check plate, and the magnet is arranged in the check plate, so that the magnet can be adsorbed with the check valve body, the sealing effect is better, water return in the using process is prevented, the secondary extrusion piece can be used for limiting the check rod secondarily, and the water stop effect is improved.

2. Through the bottom at the check valve body set up can be rather than the inside identical position sleeve, when the inner seal circle of check valve body damaged, can conveniently change it, improved its waterproof effect, avoid the inside former device of check valve body to damage simultaneously, and the problem of the check valve body cost increase of direct renewal.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the middle seal ring of the present invention;

fig. 3 is a schematic structural view of the secondary extrusion piece of the present invention.

In the figure: 1. a check valve body; 2. pressing the cover plate upwards; 3. fastening a bolt; 4. a circular sleeve; 5. a secondary extrusion; 51. a hold down bar; 52. a pressing plate; 53. a knob handle; 6. a check rod; 7. a slider; 8. a check plate; 9. a seal ring; 10. a positioning sleeve; 11. the cover plate is pressed down.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 3; a check valve for building water supply comprises a check valve body 1, an upper pressure cover plate 2 is placed at the top of the check valve body 1, a round sleeve 4 is fixedly connected to the bottom of the upper pressure cover plate 2, the round sleeve 4 is positioned inside the check valve body 1, a fastening bolt 3 is sleeved on the top thread of the upper pressure cover plate 2, the bottom end of the fastening bolt 3 extends into the check valve body 1, a secondary extrusion piece 5 is sleeved on the inner thread of the upper pressure cover plate 2, a sealing ring 9 capable of being in intimate contact is arranged inside the check valve body 1 and outside a check plate 8, a magnet is arranged inside the check plate 8, the check plate and the check valve body can be mutually adsorbed with the inside of the check valve body 1, the sealing effect is better, water return in the using process is prevented, a check rod 6 can be limited secondarily by the secondary extrusion piece 5, and the water stop effect of the check rod is improved, the inside movable sleeve of circular sleeve 4 is equipped with non return rod 6, the bottom of non return rod 6 extends to the inner chamber of check valve body 1 and highly is connected with check plate 8, the top fixedly connected with of circular sleeve 4 is located its inside sliding block 7, the inner chamber joint of check valve body 1 has the sealing washer 9 that is located under check plate 8, the fixed cover in bottom of check valve body 1 is equipped with

position sleeve

10, and 3 threaded sleeves of fastening bolt are passed through to the bottom of position sleeve 10 and are equipped with down and press apron 11, through the bottom setting at check valve body 1 can be rather than inside the same position sleeve 10, when the inside sealing washer 9 of check valve body 1 damages, can conveniently change it, its waterproof effect has been improved, avoid simultaneously that the original equipment spare of check valve body 1 inside is damaged, and the problem of the direct more renewed check valve body 1 cost-push up.

In an alternative embodiment, secondary extrusion 5 includes a compression bar 51, a compression plate 52, and a knob handle 53; the compression rod 51 is sleeved inside the upper gland plate 2 in a threaded manner, the bottom end of the compression rod 51 extends to the inside of the circular sleeve 4 and is fixedly connected with the extrusion plate 52, and the top end of the compression rod 51 is fixedly connected with the knob handle 53 positioned above the upper gland plate 2.

In this embodiment: through utilizing secondary extrusion spare 5's setting at the top of last gland plate 2, can carry out the secondary extrusion to check board 8 and check pole 6 after adsorbing and prescribe a limit to, prevent that the inside water of check valve body 1 from flowing along the gap between 8 bottoms of check board and sealing washer 9, having guaranteed the effect of its non return, improved the practicality of device.

In an alternative embodiment, the magnet is nested around the check plate 8 and is flush with the outer perimeter of the check plate 8.

In this embodiment: through utilizing the outside at check plate 8 to set up magnet, can adsorb each other with the inside of check valve body 1, circular sleeve 4 is not made of iron material simultaneously, has guaranteed the effect of the inside non return of check valve body 1.

In an alternative embodiment, the interior of the check valve body 1, the circular sleeve 4, the check rod 6, the sliding block 7 and the check plate 8 are painted with a waterproof paint on the exterior.

In this embodiment: waterproof paint is smeared outside the circular sleeve 4, the check rod 6, the sliding block 7 and the check plate 8, so that the corrosion of water in the long-time use process can be avoided, and the service life of the water-proof oil-proof sleeve is ensured.

In an alternative embodiment, the outer part of the check plate 8 above the sealing ring 9 is provided with a rubber ring, and the inner part of the sealing ring 9 is in contact with the rubber ring outside the check plate 8.

In this embodiment: the inside of sealing washer 9 and the outside of check plate 8 contact each other, have guaranteed its sealed effect, and the material of sealing washer 9 is rubber simultaneously for contact between the two is inseparabler.

The utility model discloses a theory of operation and use flow: during the use, at first with check valve body 1's both sides and water pipe interconnect, when need not carry water, non return pole 6 and check plate 8 contact each other with check valve body 1 inside sealing washer 9 under reverse hydraulic effect simultaneously under the effect of gravity, then rotatory knob 53, make stripper plate 52 and sliding block 7 contact each other, extrude sliding block 7 and compress tightly, magnet and check valve body 1's inside mutual adsorption simultaneously, when sealing washer 9 damages, open lower cover plate 11 and upper cover plate 2, promote sealing washer 9, make the joint constraint between sealing washer 9 and the check valve body 1 relieve each other, more renew sealing washer 9, clear up check valve body 1's inside simultaneously, can.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a check valve for building feedwater, includes check valve body (1), its characterized in that: an upper pressure cover plate (2) is placed at the top of the check valve body (1), a round sleeve (4) is fixedly connected to the bottom of the upper pressure cover plate (2), the round sleeve (4) is located inside the check valve body (1), a fastening bolt (3) is sleeved on the top thread of the upper pressure cover plate (2), the bottom end of the fastening bolt (3) extends into the check valve body (1), a secondary extrusion piece (5) is sleeved on the inner thread of the upper pressure cover plate (2), a check rod (6) is movably sleeved inside the round sleeve (4), the bottom end of the check rod (6) extends into the inner cavity of the check valve body (1) and is highly connected with a check plate (8), a sliding block (7) located inside the round sleeve (4) is fixedly connected to the top end of the round sleeve, and a sealing ring (9) located right below the check plate (8) is clamped in the inner cavity of the check valve body (1), the bottom of the check valve body (1) is fixedly sleeved with a positioning sleeve (10), and the bottom of the positioning sleeve (10) is sleeved with a pressing cover plate (11) through a fastening bolt (3) in a threaded manner.

2. The check valve for construction watering according to claim 1, characterized in that: the secondary extrusion part (5) comprises a pressing rod (51), an extrusion plate (52) and a knob handle (53); the pressing rod (51) is sleeved inside the upper pressing cover plate (2) in a threaded mode, the bottom end of the pressing rod (51) extends to the inside of the circular sleeve (4) and is fixedly connected with an extrusion plate (52), and the top end of the pressing rod (51) is fixedly connected with a knob handle (53) located above the upper pressing cover plate (2).

3. The check valve for construction watering according to claim 1, characterized in that: the periphery of the check plate (8) is embedded with magnets, and the magnets are flush with the periphery of the check plate (8).

4. The check valve for construction watering according to claim 1, characterized in that: and waterproof paint is smeared outside the circular sleeve (4), the check rod (6), the sliding block (7) and the check plate (8) in the check valve body (1).

5. The check valve for construction watering according to claim 1, characterized in that: the rubber ring is arranged outside the check plate (8) above the sealing ring (9), and the inside of the sealing ring (9) is in contact with the rubber ring outside the check plate (8).