CN212956882U

CN212956882U - Floor drain valve core capable of preventing leakage from returning

Info

Publication number: CN212956882U
Application number: CN202021736650.XU
Authority: CN
Inventors: 黄贵周
Original assignee: Foshan Shunde Jianxiong Bathroom Hardware Co ltd
Current assignee: Foshan Shunde Jianxiong Bathroom Hardware Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-13
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a leak-proof floor drain valve core, which comprises a floor drain valve core and a leak-proof switch piece; the floor drain valve core is of a tubular structure, and one side of the lower part of the floor drain valve core is provided with an inwards-concave clearance gap groove; in the anti-return-leakage switch piece, two ends of a counterweight hinging shaft are hinged on counterweight hinging lugs of the concave clearance notch groove; the movable counterweight part is connected behind the counterweight articulated shaft, the weight of the movable counterweight part is greater than that of the movable anti-overflow closing plate, and the movable anti-overflow closing plate covers the lower end of the floor drain valve core in a normally closed state. The advantages are that: by the skillfully arranged movable counterweight part, the principle of gravity balance between the movable counterweight part and the movable anti-overflow closing plate and between the movable counterweight part and water is fully utilized, so that the movable anti-overflow closing plate can be automatically opened downwards for drainage when water exists in the floor drain valve core, and can be automatically closed upwards to prevent the water in the pipeline from returning upwards to the floor drain when no water exists in the floor drain valve core, thereby preventing dirty water, bacteria and the like from entering the clean floor drain.

Description

Floor drain valve core capable of preventing leakage from returning

Technical Field

The utility model relates to a floor drain especially relates to a prevent returning floor drain case.

Background

At present, a floor drain is an important interface for connecting a drainage pipeline system with indoor ground, a hand basin and the like, is used as an important part of a drainage system in a house, has the performance which directly influences the sanitation of the hand basin and the quality of indoor air, and is very important for controlling peculiar smell in a bathroom. Therefore, the design of floor drain anti-return leakage is very important, and the common main floor drain anti-odor and anti-return leakage structure principle is as follows:

1. the water deodorization floor drain is the most traditional and common floor drain, in the structure of the floor drain, a water storage bay is formed by adopting the structure of a bent pipe communicating vessel, peculiar smell is prevented through the sealing property of water, but the back leakage cannot be prevented;

2. the sealing deodorant floor drain is generally that a sealing cover which can be opened and closed is added on the floor drain hole cover, so that the floor drain body is sealed to prevent odor, and the floor drain has the advantages that the appearance is loved by young people to be more defensive, the defect is that the floor drain can not be automatically opened and closed, and the sealing cover needs to be stood down to lift the floor drain body more inconveniently;

3. the anti-return floor drain is an advanced anti-odor floor drain at present, and mainly comprises a small floating ball arranged at a discharge pipe at the lower end of the anti-return floor drain, wherein the small floating ball is upwards propped against an outlet of the anti-return floor drain by utilizing water pressure and air pressure in a sewer pipeline, so that the anti-odor, anti-insect and anti-overflow effects are achieved, but the anti-return floor drain has the defects that the anti-return floor drain loses efficacy when the water level in the sewer pipeline is low, and the effect of complete automatic sealing cannot be achieved.

SUMMERY OF THE UTILITY MODEL

For solving the current various deodorant and prevent returning leak floor drain and have above-mentioned defect, the utility model provides a do not receive sewer water level and pressure influence, automatic normally closed prevent returning leak floor drain case.

In order to achieve the purpose, the utility model adopts the technical proposal that: a kind of floor drain valve core of preventing returning the leakage, including valve core of floor drain and preventing returning the leakage switch member, prevent returning the leakage switch member to set up in the bottom of the valve core of floor drain openably and closably; the method is characterized in that: the floor drain valve core is of a tubular structure, the top of the floor drain valve core is provided with an installation check ring, and one side of the lower part of the floor drain valve core is provided with an inwards-concave clearance gap groove; the left side and the right side of the lower part of the concave clearance gap groove are provided with counterweight hinge lugs; the anti-return-leakage switch piece comprises a movable anti-return-overflow sealing plate, a movable counterweight part and a counterweight articulated shaft, the counterweight articulated shaft is arranged at the rear part of the movable anti-return-overflow sealing plate, and two ends of the counterweight articulated shaft are articulated on counterweight articulated lugs of the concave clearance gap groove; the movable counterweight part is connected behind the counterweight articulated shaft, the weight of the movable counterweight part is greater than that of the movable anti-overflow closing plate, and the movable anti-overflow closing plate covers the lower end of the floor drain valve core in a normally closed state.

Furthermore, a sealing balance weight block is arranged on the movable balance weight part.

Furthermore, a sealing rubber ring is sleeved at the bottom of the floor drain valve core.

Furthermore, the bottom of the sealing rubber ring is connected with an elastic sealing ring sealing rubber ring, and an elastic buffer groove is arranged between the elastic sealing ring sealing rubber ring and the bottom of the sealing rubber ring.

Furthermore, the top of the sealing rubber ring is jointed with a concave-convex clamping part, the outer wall of the bottom of the floor drain valve core is provided with a sealing ring groove, and the concave-convex clamping part is clamped and sleeved in the sealing ring groove.

Furthermore, the upper surface of the movable anti-overflow-back sealing plate is provided with a sealing rubber block.

Furthermore, the movable anti-overflow closing plate is of a tongue-shaped structure.

Furthermore, the upper part of the floor drain valve core is sleeved with a sealing rubber sleeve.

Furthermore, the top of the floor drain valve core is provided with handle hinge lugs which are bilaterally symmetrical, and a semi-annular horizontal handle is hinged to the handle hinge lugs.

Furthermore, the installation retainer ring is provided with a circle of clamping threads.

The working principle is that the anti-return leakage floor drain valve element is clamped and sleeved on the floor drain valve element mounting part of the floor drain, so that the bottom of the anti-return leakage floor drain valve element is exposed from the lower part of the floor drain, and the movable counter weight part is heavier than the movable anti-return overflow sealing plate, the movable anti-return overflow sealing plate moves upwards in a reverse direction by taking the counter weight articulated shaft as a rotating fulcrum, and tightly covers the bottom of the floor drain valve element from bottom to top to form a normally closed state, thereby achieving the technical effect of 'automatic anti-return leakage'. When the floor drain is drained automatically, the resultant force of the gravity of water on the floor drain and the gravity of the movable anti-overflow closing plate is larger than the gravity of the movable counterweight part, the left and right of the anti-return leakage switch part are out of balance, the movable anti-overflow closing plate is opened downwards, and the water on the floor drain flows downwards out of the floor drain.

From the above, for prior art, the utility model has the following advantages: the structure is scientific, the design is reasonable, and the automation degree is high; by the skillfully arranged movable counterweight part, the principle of gravity balance among the movable counterweight part, the movable anti-overflow closing plate and water is fully utilized, the movable anti-overflow closing plate opens water downwards in the floor drain valve core to drain water, closes upwards when the floor drain valve core is empty of water to prevent water in a pipeline from returning upwards to the floor drain, and thus dirty water, bacteria and the like are prevented from entering the clean floor drain; meanwhile, the odor of the sewer can be prevented from flowing upwards.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a top view of the anti-backleak switch member.

Fig. 5 is a bottom view of the packing rubber sleeve.

The reference numbers illustrate: 2-a floor drain valve core, 3-a return leakage prevention switch part, 20-a return leakage prevention part, 21-an installation retainer ring, 22-a clamping thread, 23-an inward concave clearance gap groove, 24-a counterweight hinging lug, 25-a sealing rubber ring, 251-a concave-convex clamping part, 252-an elastic buffer groove, 253-an elastic sealing ring, 26-a handle hinging lug, 27-a horizontal handle, 28-a sealing rubber sleeve and 29-a sealing ring groove; 30-movable anti-overflow closing plate, 31-sealing rubber block, 32-movable counterweight part, 33-sealing balancing weight block and 34-counterweight hinging shaft.

Detailed Description

The present invention and its advantageous technical effects are further described in detail below with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-5, the leakage-return-preventing floor drain valve core of the preferred embodiment of the present invention comprises a floor drain valve core 2 and a leakage-return-preventing switch member 3, wherein the leakage-return-preventing switch member 3 is openably and closably arranged at the bottom of the floor drain valve core 2; the method is characterized in that: the floor drain valve core 2 is of a tubular structure, the top of the floor drain valve core is provided with an installation check ring 21, and one side of the lower part of the floor drain valve core is provided with an inwards-concave clearance gap groove 23; the left side and the right side of the lower part of the concave clearance gap groove 23 are provided with counterweight hinge lugs 24; the anti-leakage switch part 3 comprises a movable anti-overflow seal plate 30, a movable counterweight part 32 and a counterweight hinge shaft 34, wherein the counterweight hinge shaft 34 is arranged at the rear part of the movable anti-overflow seal plate 30, and two ends of the counterweight hinge shaft 34 are hinged on counterweight hinge lugs 24 of the concave clearance notch groove 23; the movable counterweight part 32 is connected behind the counterweight hinge shaft 34, the weight of the movable counterweight part 32 is larger than that of the movable anti-spill-back sealing plate 30, and the movable anti-spill-back sealing plate 30 covers the lower end of the floor drain valve core 2 in a normally closed state.

Referring to fig. 2, in order to generate a larger sealing pressure on the floor drain valve element 2 by the movable anti-spill-back sealing plate 30, a sealing balancing weight 33 is further arranged on the movable weight part 32.

Referring to fig. 1 and 5, further, a sealing rubber ring 25 is sleeved at the bottom of the floor drain valve core 2.

Referring to fig. 2, in order to improve the sealing effect between the movable anti-backflow sealing plate 30 and the floor drain valve element 2, further, an elastic sealing ring sealing rubber ring 253 is connected to the bottom of the sealing rubber ring 25, and an elastic buffer groove 252 is arranged in the connection between the elastic sealing ring sealing rubber ring 253 and the bottom of the sealing rubber ring 25.

Referring to fig. 2, in order to improve the convenience of assembly and disassembly between the movable anti-spill-back closing plate 30 and the floor drain valve element 2, further, the top of the sealing rubber ring 25 is connected with a concave-convex clamping portion 251, the outer wall of the bottom of the floor drain valve element 2 is provided with a sealing ring groove 29, and the concave-convex clamping portion 251 is clamped and sleeved in the sealing ring groove 29.

As a more preferable embodiment, in order to further improve the sealing effect between the movable anti-spill-back closing plate 30 and the floor drain valve core 2, referring to fig. 2 and 4, the upper surface of the movable anti-spill-back closing plate 30 is further provided with a sealing rubber block 31.

Referring to fig. 4, further, the movable spill-proof plate 30 is a tongue-shaped structure.

Referring to fig. 1 to 3, in order to improve the sealing performance between the floor drain valve element 2 and the floor drain, a sealing rubber sleeve 28 is further sleeved on the upper portion of the floor drain valve element 2.

Referring to fig. 2, further, in order to facilitate the assembly and disassembly between the floor drain valve core and the floor drain, the top of the floor drain valve core 2 is provided with handle hinge lugs 26 which are bilaterally symmetrical, and a semi-annular horizontal handle 27 is hinged on the handle hinge lugs 26.

Referring to fig. 1 and 2, in order to make the connection between the valve core of the anti-leakage floor drain and the floor drain more stable, further, the installation retainer ring 21 is provided with a circle of clamping threads 22.

The use shows that the anti-return leakage floor drain valve core is only required to be clamped and sleeved on the floor drain valve core mounting part of the floor drain, so that the bottom of the anti-return leakage floor drain valve core is exposed from the lower part of the floor drain, and the air tightness is good and water leakage cannot occur due to the sealing effect of the sealing rubber sleeve 28 between the anti-return leakage floor drain valve core and the floor drain. (1) At ordinary times, because the weight of the movable counterweight part 32 is greater than the weight of the movable anti-overflow seal plate 30, under the action of the gravity of the movable counterweight part 32, the movable counterweight part 32 moves downwards to drive the counterweight hinge shaft 34 to do rotary motion, because the counterweight hinge shaft 34 is used as a rotary fulcrum, the movable anti-overflow seal plate 30 moves upwards in a reverse direction to tightly cover the bottom of the floor drain valve element 2, and under the action of the sealing rubber ring 25 or the sealing rubber block 31, the movable anti-overflow seal plate 30 seals the bottom of the floor drain valve element 2 from bottom to top, so that when water gushes from bottom to top, the pressure presses the movable anti-overflow seal plate 30 upwards to form resultant force with the movable counterweight part 32, the movable anti-overflow seal plate 30 is pressed on the bottom of the floor drain valve element 2, an automatic normally closed state is formed, and the technical effect of 'anti-overflow leakage' is achieved. (2) When water is filled in the floor drain, and the resultant force of the gravity of the water and the gravity of the movable anti-overflow closing plate 30 is larger than the gravity of the movable counterweight part 32, the left and right sides of the anti-return leakage switch part lose balance, the movable anti-overflow closing plate 30 moves downwards, the counterweight hinge shaft 34 rotates reversely, the movable counterweight part 32 moves upwards in the concave clearance gap groove 23, the sealing state between the movable anti-overflow closing plate 30 and the bottom of the floor drain valve core 2 is relieved, water on the floor drain flows downwards out of the floor drain, and the automatic drainage function is realized. (3) After the water is drained, the movable spill-proof sealing plate 30 returns to the normally closed state under the action of the gravity of the movable counterweight 32.

In the above description, details, such as structures and processes, which are conventionally used in the prior art, are not repeated for brevity. The processing technology and parts which are not disclosed by the utility model can be processed according to the conventional technology of the prior art.

The invention is not limited to the embodiments disclosed and described above, but rather, modifications and variations of the invention are possible within the scope of the invention as defined in the claims.

Claims

1. A leakage return prevention floor drain valve core comprises a floor drain valve core (2) and a leakage return prevention switch piece (3), wherein the leakage return prevention switch piece (3) is arranged at the bottom of the floor drain valve core (2) in a switchable manner; the method is characterized in that: the floor drain valve core (2) is of a tubular structure, the top of the floor drain valve core is provided with an installation check ring (21), and one side of the lower part of the floor drain valve core is provided with an inwards-concave clearance gap groove (23); the left side and the right side of the lower part of the concave clearance gap groove (23) are provided with counterweight hinge lugs (24); the anti-return-leakage switch piece (3) comprises a movable anti-return-overflow sealing plate (30), a movable counterweight part (32) and a counterweight hinge shaft (34), wherein the counterweight hinge shaft (34) is arranged at the rear part of the movable anti-return-overflow sealing plate (30), and two ends of the counterweight hinge shaft (34) are hinged on counterweight hinge lugs (24) of the concave clearance notch groove (23); the movable counterweight part (32) is connected behind the counterweight hinge shaft (34), the weight of the movable counterweight part (32) is greater than that of the movable anti-spill-back closing plate (30), and the movable anti-spill-back closing plate (30) covers the lower end of the floor drain valve core (2) in a normally closed state.

2. The anti-return leakage floor drain valve core according to claim 1, characterized in that: and a sealing balance weight block (33) is arranged on the movable weight part (32).

3. The anti-return leakage floor drain valve core according to claim 2, characterized in that: and a sealing rubber ring (25) is sleeved at the bottom of the floor drain valve core (2).

4. The anti-return leakage floor drain valve core according to claim 3, characterized in that: the bottom of the sealing rubber ring (25) is connected with an elastic sealing ring sealing rubber ring (253), and an elastic buffer groove (252) is connected between the elastic sealing ring sealing rubber ring (253) and the bottom of the sealing rubber ring (25).

5. The anti-return leakage floor drain valve core according to claim 4, characterized in that: the top of the sealing rubber ring (25) is connected with a concave-convex clamping portion (251), the outer wall of the bottom of the floor drain valve core (2) is provided with a sealing ring groove (29), and the concave-convex clamping portion (251) is clamped and sleeved in the sealing ring groove (29).

6. The anti-leakage floor drain valve element according to any one of claims 1 to 5, characterized in that: the upper surface of the movable anti-spill-back sealing plate (30) is provided with a sealing rubber block (31).

7. The anti-return leakage floor drain valve core according to claim 6, characterized in that: the movable anti-spill-back sealing plate (30) is of a tongue-shaped structure.

8. The anti-return leakage floor drain valve core according to claim 7, characterized in that: and the upper part of the floor drain valve core (2) is sleeved with a sealing rubber sleeve (28).

9. The anti-leak-back floor drain valve core according to claim 8, characterized in that: the top of the floor drain valve core (2) is provided with bilaterally symmetrical handle hinge lugs (26), and the handle hinge lugs (26) are hinged with semi-annular horizontal handles (27).

10. The anti-leak-back floor drain valve core as claimed in claim 9, wherein: the mounting retainer ring (21) is provided with a circle of clamping threads (22).