CN210797766U - Flap valve with limiting structure - Google Patents

Abstract

The utility model discloses a clap and cover drain valve with limit structure, connect with the activity dress including the drainage main part that has the outlet and cover in the last clap of drainage main part, clap the lid with outlet switching cooperation is still including being used for right clap the lid in the switching the ascending activity in direction of outlet carries out the limit structure of restriction, through limit structure makes clap the lid can't freely with outlet switching cooperation, can avoid like this when clapping under the circumstances such as transportation clapping the lid collide with, extruded problem with the outlet mutually at times to ensure to form good leakproofness between the stagnant water face of clapping lid and outlet when normal use, the function is more reliable, simple structure.

Description

Flap valve with limiting structure

Technical Field

The utility model relates to a clap lid drain valve with limit structure.

Background

The flap cover drain valve is characterized in that the flap cover is turned up in the water tank by utilizing the buoyancy of the flap cover to open the drain outlet for draining water, and when the buoyancy of the flap cover is not enough to overcome the gravity of the flap cover and the downward suction force of water, the flap cover falls down to close the drain outlet to stop water. The sealing degree between the flap cover and the water stop surface of the water outlet is very important, and if the sealing is not good, water leakage or water seepage can occur, so that the waste of water resources is caused.

The flap cover of the prior flap cover drain valve is usually freely movable before the flap cover is not installed on a water tank, so that the flap cover may collide with and extrude a water stop surface of a drain port at times under the condition of transportation and the like, thereby reducing or damaging the sealing property between the flap cover and the drain port.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned problem, provide a clap lid drain valve with limit structure, connect with the activity dress including the drainage main part that has the outlet and be in the last clap lid of drainage main part, clap the lid with outlet switching cooperation is still including being used for right clap the lid in the switching the restriction structure that the ascending activity in direction of outlet carries out the restriction, through restriction structure makes clap the lid can't freely with the cooperation of outlet switching.

Preferably, when the limiting structure limits the flap cover, the limiting structure fixes the flap cover, or when the limiting structure limits the flap cover, the limiting structure limits the flap cover to move within a range not in open-close engagement with the water discharge port.

Preferably, the limiting structure limits the flap cover to a position for closing or opening the water outlet.

Preferably, the limiting structure comprises a pressing rod, the pressing rod is provided with a locking position and a releasing position, when the pressing rod is located at the locking position, the pressing rod abuts and limits the racket cover, and when the pressing rod is located at the releasing position, the pressing rod releases the abutting and limiting of the racket cover.

Preferably, when the pressing rod is located at the locking position, the pressing rod abuts and limits the flap cover to lock the flap cover at the position for closing the water outlet, and when the pressing rod is located at the releasing position, the pressing rod releases the abutting and limiting of the flap cover to give way for the movement of opening the water outlet of the flap cover.

Preferably, the pressing lever slides or rotates between the restricting position and the releasing position.

Preferably, the racket cover comprises a racket cover main body and a connecting arm, one end of the connecting arm is in pivot joint with a rotating shaft arranged on the drainage main body, the other end of the connecting arm is fixedly connected with the racket cover main body, a first end of the pressing rod is connected to the rotating shaft in an assembling mode, and a second end of the pressing rod can be in butt joint with the racket cover main body in a matching mode.

Preferably, be equipped with the shaft hole on the first end of depression bar, the first end of depression bar passes through the shaft hole cup joints in the pivot, be equipped with spacing groove or spacing rib on the internal perisporium in shaft hole, it corresponds, it is equipped with spacing rib or spacing groove to correspond on the periphery wall of pivot, through the spacing cooperation of spacing groove and spacing rib, will the depression bar location is in release position or locking position.

Preferably, the limiting groove or the limiting rib is provided with a plurality of and follows the circumferential direction interval arrangement of the outer circumferential wall of the rotating shaft, and/or the limiting rib or the limiting groove is provided with a plurality of and follows the circumferential direction interval arrangement of the inner circumferential wall of the shaft hole of the first end of the pressing rod.

Preferably, the compression bar is detachably and fixedly arranged at a position for abutting and limiting the flap cover. Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up be used for right clap the lid in the switching the ascending restriction structure that limits is carried out in the activity of the side of outlet, through restriction structure makes clap the lid can't freely with the cooperation of outlet switching can avoid like this clapping under the circumstances such as transportation when covering collide with, extruded problem mutually with the outlet to ensure to clap and to form good leakproofness between the stagnant water face in lid and outlet when normal use, the function is more reliable, simple structure.

Drawings

Fig. 1 is an exploded perspective view of a flapper drain valve with a restriction structure according to an embodiment of the present invention;

fig. 2 is a partially exploded view of a flapper drain valve with a restriction structure according to an embodiment of the present invention;

fig. 3 is a partial cross-sectional view of a flapper drain valve with a restriction, where the compression bar is in a locked position, according to an embodiment of the invention.

Fig. 4 is a partial cross-sectional view of a flapper drain valve with a restriction mechanism, in accordance with an embodiment of the present invention, with the plunger in a first state release position (free movement of the plunger);

fig. 5 is a partial cross-sectional view of a flapper drain valve with a restriction mechanism, where the plunger is in a release position in a second state (the plunger is not free to move), according to an embodiment of the invention;

fig. 6 is another angular partial cross-sectional view of a flapper valve with a restriction mechanism, where the plunger is in a second position (the plunger is not free to move), according to an embodiment of the present invention.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description of the present invention is provided with reference to the accompanying drawings, which are only some embodiments of the present invention, and it is obvious for a person skilled in the art to obtain other drawings without creative efforts.

As shown in fig. 1 to 6, a flap valve with a restricting structure according to an embodiment of the present invention includes a drainage body 10 having a drainage port 11 and a flap 20 movably attached to the drainage body 10, wherein the flap 20 is engaged with the drainage port 11 to open or close the drainage port 11. The flap valve further includes a restriction structure 30 for restricting movement of the flap 20 in a direction for opening and closing the drain port 11, and the flap 20 is prevented from freely opening and closing the drain port 11 by the restriction structure 30. Under the action of the limiting structure 30, the problem that the flap cover 20 collides with the water outlet 11 and is extruded at any time during transportation and the like can be avoided, so that good sealing performance can be formed between the flap cover 20 and the water stop surface 111 of the water outlet 11 during normal use, the function is more reliable, and the structure is simple.

In the present embodiment, when the limiting structure 30 limits the flap cover 20, the limiting structure 30 fixes the flap cover 20 so that the flap cover 20 cannot move freely. Specifically, in the present embodiment, the limiting structure 30 limits the flap cover 20 to the position for closing the drain opening 11, so as to better protect the water stop surface 111 of the drain opening 11 and avoid the problem that the water stop surface 111 of the drain opening 11 is exposed and scratched when not in use. It is understood that the restricting structure 30 may also be selected to restrict the flap cover 20 to the position where the water discharge opening 11 is opened, as long as the flap cover 20 is prevented from being opened and closed at times in an uncontrolled manner during transportation or the like, and of course, the scheme of selecting the restricting structure 30 to restrict the flap cover 20 to the position where the water discharge opening 11 is opened is inferior to the scheme of selecting the restricting structure 30 to restrict the flap cover 20 to the position where the water discharge opening 11 is closed. Alternatively, when the regulation structure 30 regulates the flap cover 20, the regulation structure 30 may regulate the flap cover 20 from moving within a range not in open-close engagement with the drain port 11.

In this embodiment, the limiting structure 30 includes a pressing rod 31, the pressing rod 31 can abut and limit the flap cover 20, the pressing rod 31 has a locking position and a releasing position, when the pressing rod 31 is in the locking position, the pressing rod 31 abuts and limits the flap cover 20, specifically, the pressing rod 31 abuts and limits the flap cover 20 to lock the flap cover 20 at a position for closing the water outlet 11. When the pressing rod 31 is at the release position, the pressing rod 31 releases the abutting limit of the flap cover 20 so as to give way to the movement of opening the water outlet 11 of the flap cover 20. Alternatively, the pressing lever 31 is not necessarily provided to be movable between the lock position and the release position, and may be selectively fixed to a position where the pressing lever 31 is detachably fixed to limit the abutment of the flap cover 20.

Specifically, the flap 20 includes a flap body 21 and a connecting arm 22, one end of the connecting arm 22 is pivotally connected to and engaged with the rotating shaft 12 provided on the drainage body 10, and the other end is fixedly connected to the flap body 21, and the flap body 21 can rotate relative to the drainage body 10 via the connecting arm 22 to open or close the drainage opening 11. The pressing rod 31 can slide or rotate between a locking position and a releasing position, specifically, a first end of the pressing rod 31 is rotatably connected to the rotating shaft 12, and a second end of the pressing rod 31 can be in abutting fit with the flap main body 21, so that the flap main body 21 is prevented from being turned upwards to keep closing the water outlet 11.

More specifically, in this embodiment, be equipped with shaft hole 311 on the first end of depression bar 31, the first end of depression bar 31 cup joints on pivot 12 through shaft hole 311, be equipped with spacing rib 3111 on the internal perisporium of shaft hole 311, spacing rib 3111 is equipped with a plurality of and along the internal perisporium circumference interval arrangement of shaft hole 311 of the first end of depression bar 31, it is corresponding, the correspondence is equipped with spacing groove 121 on the periphery wall of pivot 12, spacing groove 121 is equipped with a plurality of and along the periphery wall circumference interval arrangement of pivot 12, through the spacing cooperation of spacing groove 121 and spacing rib 3111, position depression bar 31 in release position and locking position. Alternatively, a limiting groove may be formed at the first end of the pressing rod 31, the limiting groove is provided with a plurality of limiting ribs circumferentially spaced along the inner circumferential wall of the shaft hole 311 at the first end of the pressing rod 31, the rotating shaft 12 is provided with a plurality of limiting ribs circumferentially spaced along the outer circumferential wall of the rotating shaft 12, and preferably, each of the limiting ribs 3111 and the limiting groove 121 is provided with 4 limiting grooves. Of course, the limiting rib 3111 may be provided with a plurality of limiting grooves 121, or the limiting groove 121 may be provided with a plurality of limiting ribs 3111, so that the limiting fit between the limiting groove 121 and the limiting rib 3111 can be realized, and the pressing rod 31 can be positioned at the releasing position and the locking position.

Of course, in the present embodiment, the pressing rod 31 may be selectively installed on the drainage main body 10, or may be selectively installed on other fixing parts in the water tank movably or detachably, as long as the pressing rod 31 can be matched with the flap cover 20.

When not using the utility model discloses a flap drain valve, for example when leaving factory setting, as shown in fig. 3, with depression bar 31 location at the locking position, at this moment, spacing rib 3111 on the internal perisporium of depression bar 31 first end shaft hole 311 and the spacing groove 121 on the pivot 12 are spacing to be cooperated, and the second end butt of depression bar 31 is at the upper surface of flap main part 21, make flap main part 21 can't upwards turn up and open outlet 11, thereby avoid flap 20 can collide with, extruded problem with outlet 11 at times under the circumstances such as transportation at intervals.

When needing to use the utility model discloses a flap valve, under the state of fig. 3, with the spacing rib 3111 of depression bar 31 first end outwards slide along pivot 12 axial and shift out the spacing groove 121 on the pivot 12, spacing groove 121 and spacing rib 3111 are no longer spacing cooperation under this state, depression bar 31 is in the release position under the first state (depression bar 31 can free activity this moment), thereby depression bar 31 no longer restricts flap 20 in the ascending activity of switching outlet 11 side, depression bar 31 can be in pivot 12 free rotation and outlet 11 switching cooperation.

When the pressing rod 31 is in the release position in the first state, the pressing rod 31 is rotated upwards to a vertical position, as shown in fig. 4, and then aligned with the limiting rib 3111 and the limiting groove 121, and the pressing rod 31 is slid inwards along the axial direction of the rotating shaft 12, so that the limiting rib 3111 and the limiting groove 121 are in limiting fit, as shown in fig. 5 and 6, the pressing rod 31 is in the release position in the second state (at this time, the pressing rod 31 cannot move freely), and in this state, the pressing rod 31 is positioned by the limiting fit of the limiting rib 3111 and the limiting groove 121, so that the pressing rod 31 is kept in the release position in the second state, the pressing rod 31 is prevented from rotating freely, and the effect is better.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The flapper drain valve with the limiting structure is characterized by further comprising a limiting structure used for limiting the movement of the flapper in the direction of opening and closing the drain port, and the flapper cannot be freely matched with the drain port in an opening and closing manner through the limiting structure.

2. The flapper drain valve with the restriction structure according to claim 1, wherein the restriction structure fixes the flapper when the restriction structure restricts the flapper, or restricts the flapper from moving within a range not in open-close engagement with the drain port when the restriction structure restricts the flapper.

3. The flapper drain valve with the restriction structure of claim 1, wherein the restriction structure restricts the flapper in a position to close or open the drain opening.

4. The flapper valve assembly of claim 1 wherein the restriction mechanism includes a lever having a locking position and a release position, wherein the lever limits the flapper from abutting when in the locking position and wherein the lever releases the flapper from abutting when in the release position.

5. The flap valve according to claim 4, wherein when the pressing lever is in the locking position, the pressing lever abuts and limits the flap to lock the flap at a position for closing the water outlet, and when the pressing lever is in the releasing position, the pressing lever releases the abutting and limiting of the flap to give way for the flap to open the water outlet.

6. The flapper valve assembly of claim 4 wherein the lever slides or rotates between the locked position and the released position.

7. The flapper drain valve with the restriction structure of claim 4, wherein the flapper comprises a flapper main body and a connecting arm, one end of the connecting arm is pivotally connected to and engaged with a rotating shaft provided on the drain main body, the other end is fixedly connected to the flapper main body, a first end of the pressing rod is connected to and engaged with the rotating shaft, and a second end of the pressing rod is capable of abutting and engaging with the flapper main body.

8. The flap valve according to claim 7, wherein a shaft hole is formed at a first end of the pressing rod, the first end of the pressing rod is sleeved on the rotating shaft through the shaft hole, a limiting groove or a limiting rib is formed on an inner peripheral wall of the shaft hole, correspondingly, a limiting rib or a limiting groove is correspondingly formed on an outer peripheral wall of the rotating shaft, and the pressing rod is positioned at the release position or the locking position through limiting matching of the limiting groove and the limiting rib.

9. The flap valve according to claim 8, wherein the plurality of limiting grooves or the plurality of limiting ribs are circumferentially spaced along the outer circumferential wall of the shaft, and/or the plurality of limiting ribs or the plurality of limiting grooves are circumferentially spaced along the inner circumferential wall of the shaft hole of the first end of the pressing rod.

10. The flapper valve assembly of claim 1 wherein the restriction mechanism includes a lever removably fixedly mounted in abutment with the flapper.

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