CN215258070U - Automatic freeze-proof device of check valve - Google Patents

Abstract

The utility model relates to a pipeline technical field that prevents frostbite discloses an automatic freeze-proof device of check valve, including the limiting plate, limiting plate diapire right side fixed mounting has the otic placode, the fly leaf has been placed in the limiting plate left side, fly leaf rear side top fixed mounting has the slider, the slider is arranged in the guide rail, slider left side fixedly connected with spring one end, spring left end and stopper fixed connection, and stopper and guide rail fixed connection, the inboard equal fixed mounting of fly leaf roof and left wall has the arch. The utility model discloses a be provided with guide rail, fly leaf and spring, accessible spring drive fly leaf extrusion drainage pipe, the reduction by a wide margin of the interior water yield of drainage pipe effectively avoids the pipeline frost crack situation, and simultaneously when drainage pipe drainage, can drive the automatic outward movement of fly leaf by water pressure, need not the manual fly leaf that resets that moves outward, is fit for extensively promoting and using.

Description

Automatic freeze-proof device of check valve

Technical Field

The utility model relates to a pipeline technical field that prevents frostbite specifically is an automatic freeze-proof device of check valve.

Background

The check valve is a valve for controlling the unidirectional flow direction of a medium in a pipeline, is generally arranged on a vertical pipeline or a horizontal pipeline according to needs, and is opened under the action of the pressure of fluid flowing in one direction; when the fluid flows in the reverse direction, the fluid pressure, the self weight of the valve clack and the valve clack act on the valve seat, thereby cutting off the flow and preventing the medium in the pipeline from flowing backwards. The check valve is an automatic valve, and has the function of ensuring the medium in the pipeline to flow in a directional mode without flowing backwards so as to prevent accidents.

From a search (application No. CN201720018849.0), it is known that an automatic antifreeze apparatus for a check valve includes a shut valve, a check valve, and a drain valve, the shut valve and the check valve being installed on a main drain pipe, the shut valve being above the check valve; the check valve comprises a water inlet, a water outlet, a valve disc, a valve body, a valve cover, a hinge bolt and a valve seat, wherein a bypass port is formed in the bottom of the valve body, close to the valve seat, and connected with a bypass pipeline; the water drain valve is an electromagnetic valve. The utility model discloses simple structure, convenient operation can prevent effectively that freezing and leading to pipeline and valve body frost crack because of the pipeline water-logging.

In implementing the present invention, the inventor finds that the following problems exist in the prior art and are not solved: the device adopts intelligent control system to accomplish the clearance of surplus water in the drainage pipe, and input cost and follow-up maintenance cost are high, and the practicality is unsatisfactory to be not fit for extensive popularization and application scheduling problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic freeze-proof device of check valve has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic anti-freezing device for a check valve comprises a limiting plate;

limiting plate diapire right side fixed mounting has the otic placode, the fly leaf has been placed in the limiting plate left side, fly leaf rear side top fixed mounting has the slider, the slider is arranged in the guide rail, slider left side fixedly connected with spring one end, spring left end and stopper fixed connection, and stopper and guide rail fixed connection, the inboard equal fixed mounting of fly leaf roof and left wall has the arch, the equal fixed mounting in limiting plate diapire left side and roof upper surface has the lantern ring, and the total four groups of lantern ring, it has the ribbon to run through in the lantern ring.

As an optimized embodiment of the utility model, the locating hole has all been seted up on stopper and the otic placode, and the total four groups of locating hole.

As a preferred embodiment of the present invention, the protrusion is located outside the collar.

As an optimized implementation mode of the utility model, the corner fixed mounting of limiting plate has the strengthening rib.

As an optimized embodiment of the utility model, the protruding one end fixed mounting who keeps away from the fly leaf has the cushion collar.

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

1. the utility model relates to an automatic freeze-proof device of check valve, through being provided with guide rail, fly leaf and spring, the accessible spring drives fly leaf extrusion drainage pipe, and the frost crack situation of pipeline is effectively avoidd in the reduction by a wide margin of the interior water yield of drainage pipe, simultaneously when drainage pipe drainage, can drive the automatic outward movement of fly leaf by water pressure, need not the manual fly leaf that resets that moves outward.

2. The utility model relates to an automatic freeze-proof device of check valve, through being provided with arch and ribbon, the amount of movement of the protruding restriction fly leaf of accessible to prevent that the fly leaf excessively extrudees drainage pipe, spacing drainage pipe is tied up to the ribbon that the accessible runs through in the lantern ring, with the excessive skew of drainage pipe atress of avoiding.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the whole structure of the check valve automatic anti-freezing device of the present invention;

fig. 2 is a schematic structural diagram of a collar portion of an automatic anti-freezing device for a check valve according to the present invention.

In the figure: 1. a limiting plate; 2. a movable plate; 3. a guide rail; 4. a limiting block; 5. a spring; 6. a slider; 7. a protrusion; 8. a collar; 9. an ear plate; 10. positioning holes; 11. and (6) binding the belt.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-2, the present invention provides a technical solution: an automatic anti-freezing device of a check valve comprises a limiting plate 1;

the right side of the bottom wall of the limiting plate 1 is fixedly provided with an ear plate 9, the left side of the limiting plate 1 is provided with a movable plate 2, the top of the rear side of the movable plate 2 is fixedly provided with a slide block 6, the slide block 6 is arranged in the guide rail 3, the left side of the slide block 6 is fixedly connected with one end of a spring 5, the left end of the spring 5 is fixedly connected with a limiting block 4, the limiting block 4 is fixedly connected with the guide rail 3, the inner sides of the top wall and the left wall of the movable plate 2 are fixedly provided with a bulge 7, the upper surfaces of the left side and the top wall of the bottom wall of the limiting plate 1 are fixedly provided with a lantern ring 8, the lantern rings 8 have four groups, a bandage 11 penetrates through the lantern ring 8, the slide block 6 can give acting force through the tension of the spring 5, the slide block 6 drives the movable plate 2 to move towards the limiting plate 1 along the guide rail 3, and the movable plate 2 extrudes a drainage pipeline with the limiting plate 1, the water in the overwhelming majority drainage pipe is arranged outward, the reduction of the interior water yield of drainage pipe, effectively avoid the pipeline frost crack situation, simultaneously when drainage pipe drainage, can drive the automatic outward movement of fly leaf 2 by water pressure, need not the manual fly leaf 2 that resets that moves outward, through being provided with arch 7 and ribbon 11, the protruding 7 restriction fly leaf 2's of accessible amount of movement, in order to prevent fly leaf 2 excessive extrusion drainage pipe, spacing drainage pipe is tied up to the ribbon 11 that the accessible runs through in the lantern ring 8, in order to avoid the excessive skew of drainage pipe atress, guarantee fly leaf 2 extrusion drainage effects.

In this embodiment (as shown in fig. 1), the limiting block 4 and the ear plate 9 are respectively provided with four positioning holes 10, and the four positioning holes 10 are used for fixing the anti-freezing device.

In this embodiment (as shown in fig. 1), the protrusion 7 is located on the outer side of the collar 8, so that the protrusion 7 and the collar 8 are arranged in a staggered manner, and the protrusion 7 is used for avoiding a drain pipe to be installed so as to prevent the protrusion 7 from scratching the pipe.

In this embodiment (as shown in fig. 1), the corner of the limiting plate 1 is fixedly provided with a reinforcing rib, so that the rigidity of the limiting plate 1 can be improved by the reinforcing rib, and the limiting plate is prevented from being torn and broken.

In this embodiment (as shown in fig. 1), a buffer sleeve is fixedly installed at one end of the protrusion 7 away from the movable plate 2, so that noise pollution and impact damage caused by movement of the protrusion 7 can be reduced by the buffer sleeve.

The working principle is as follows: it should be noted that the utility model relates to an automatic anti-freezing device of check valve, including limiting plate 1, movable plate 2, guide rail 3, stopper 4, spring 5, slider 6, protrusion 7, lantern ring 8, otic placode 9, locating hole 10, ribbon 11, the part is the general standard component or the part that technical personnel in this field know, its structure and principle all can be known through the technical manual or through the conventional test method to this technical personnel, when an automatic anti-freezing device of check valve uses, limiting plate 1 and movable plate 2 are fixed in drainage pipe both sides through the locating hole of otic placode 9 and stopper 4, and lie in the check valve upside, through setting up guide rail 3, movable plate 2 and spring 5, can give slider 6 effort through spring 5 tension, slider 6 drives movable plate 2 and moves towards limiting plate 1 along guide rail 3, drainage pipe is extruded with limiting plate 1, the water in the overwhelming majority drainage pipe is arranged outward, the reduction of the interior water yield of drainage pipe, effectively avoid the pipeline frost crack situation, simultaneously when drainage pipe drainage, can drive the automatic outward movement of fly leaf 2 by water pressure, need not manual outward movement and reset fly leaf 2, through being provided with arch 7 and ribbon 11, the protruding 7 restriction fly leaf 2's of accessible amount of movement, in order to prevent fly leaf 2 excessive extrusion drainage pipe, spacing drainage pipe is tied up to the ribbon 11 that the accessible runs through in the lantern ring 8, in order to avoid the excessive skew of drainage pipe atress, guarantee 2 extrusion drainage effects of fly leaf, excellent in use effect.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides an automatic freeze-proof device of check valve which characterized in that: comprises a limit plate (1);

limiting plate (1) diapire right side fixed mounting has otic placode (9), fly leaf (2) have been placed in limiting plate (1) left side, fly leaf (2) rear side top fixed mounting has slider (6), guide rail (3) are arranged in slider (6), slider (6) left side fixedly connected with spring (5) one end, spring (5) left end and stopper (4) fixed connection, and stopper (4) and guide rail (3) fixed connection, fly leaf (2) roof and the inboard equal fixed mounting of left wall have arch (7), the equal fixed mounting of limiting plate (1) diapire left side and roof upper surface has the lantern ring (8), and lantern ring (8) total four groups, it has ribbon (11) to run through in the lantern ring (8).

2. The automatic antifreeze apparatus for check valves according to claim 1, wherein: the limiting blocks (4) and the ear plates (9) are respectively provided with positioning holes (10), and the positioning holes (10) are four groups in total.

3. The automatic antifreeze apparatus for check valves according to claim 1, wherein: the protrusion (7) is positioned on the outer side of the collar (8).

4. The automatic antifreeze apparatus for check valves according to claim 1, wherein: and reinforcing ribs are fixedly arranged at the corners of the limiting plates (1).

5. The automatic antifreeze apparatus for check valves according to claim 1, wherein: and a buffer sleeve is fixedly arranged at one end of the bulge (7) far away from the movable plate (2).

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