Sealing structure of high-flow reverse water inlet valve core seat

Abstract

The utility model relates to the field of core seat sealing structures, and discloses a high-flow reverse water inlet valve core seat sealing structure which comprises a lower valve seat and an upper valve seat, a connecting mechanism is arranged in the lower valve seat and comprises a guide rod, the bottom of the guide rod is fixedly connected to the inner wall of the lower valve seat, and the upper valve seat is fixedly connected to the lower valve seat. A guide block is slidably connected to the outer wall of the guide rod, a spring is fixedly connected to the bottom of the guide block, the bottom of the spring is fixedly connected to the inner wall of the lower valve seat, and a lower sealing ring A and a lower sealing ring B are arranged on the inner wall of the lower valve seat. The lower sealing ring A, the lower sealing ring B, the upper sealing ring A and the upper sealing ring B are matched with the guide rod, the guide block, the spring and the sealing rings to provide basic sealing, the guide rod positions the guide block and the sealing rings, and the guide block finely adjusts the position of the lower sealing ring under the action of elastic force of the spring, so that the lower sealing ring and the upper sealing ring are tightly attached, and gaps are avoided. And the sealing performance is obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to core seat sealing structure field especially relates to a high flow reverse water valve core seat sealing structure. BACKGROUND

[0002] The reverse water valve core is the fixed valve piece of the valve core, and the water inlet and outlet hole configuration is opposite to the water flow direction of the faucet.

[0003] The reverse water valve core is matched with the fixed valve piece in the form of a specific valve base and a general standard valve piece, and the water flows through the middle part of the two water inlets in the shortest path after the lower porcelain piece, so as to change the flow path.

[0004] However, in the actual use process, the existing core seat seal has only one sealing gasket, and in the long-term use process, if it is affected by water impact, water quality impurities or the small displacement of the valve core seat and other parts, the sealing gasket is easy to appear local wear, deformation or displacement, and due to the lack of the auxiliary and extrusion effect of other sealing gaskets, it cannot compensate these changes in time, so as to cause the sealing to be not strict, and the water leakage phenomenon appears, therefore, according to the above problems, a high flow reverse water valve core seat sealing structure is proposed. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a high flow reverse water valve core seat sealing structure, which aims at solving the problem of "lack of auxiliary and extrusion effect of other sealing gaskets, and cannot compensate these changes in time, so as to cause the sealing to be not strict" in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a high flow reverse water valve core seat sealing structure, comprising a lower valve seat and an upper valve seat, the inside of the lower valve seat is provided with a connecting mechanism, the inside of the upper valve seat is provided with a dismounting mechanism, the connecting mechanism comprises a guide rod, the bottom of the guide rod is fixedly connected to the inner wall of the lower valve seat, the outer wall of the guide rod is slidably connected with a guide block, the bottom of the guide block is fixedly connected with a spring, the bottom of the spring is fixedly connected to the inner wall of the lower valve seat, and the inner wall of the lower valve seat is provided with a lower sealing ring A and a lower sealing ring B.

[0007] As a further description of the above technical scheme: the inner walls of the lower valve seat and the upper valve seat are both provided with two groups of sealing ring grooves, and the outer walls of the lower sealing ring A and the lower sealing ring B are provided with through holes.

[0008] As a further description of the above technical scheme: the connecting mechanism is arranged on the inner wall of the sealing ring groove, and the outer walls of the lower sealing ring A and the lower sealing ring B are inserted into the outer wall of the guide rod.

[0009] As a further description of the above technical solution: the inner wall of the lower valve seat and the inner wall of the upper valve seat are both provided with a valve flap, and the outer wall of the lower valve seat and the upper valve seat is fixedly connected with an inlet.

[0010] As a further description of the above technical solution: the outer wall of the connecting flange is threadedly connected with a bolt A.

[0011] As a further description of the above technical solution: the outer wall of the upper valve seat is provided with a through opening, the inner wall of the through opening is inserted with an inner rod, the outer wall of the inner rod is fixedly connected with a mounting plate, the outer wall of the mounting plate is threadedly connected with a bolt B, and the top of the bolt B is threadedly connected with the outer wall of the upper valve seat.

[0012] As a further description of the above technical solution: the top of the inner rod is inserted with a top rod, the outer wall of the top rod is fixedly connected with a pressing plate, and the through opening provided in the outer wall of the upper valve seat is in communication with the sealing ring groove in the inner wall of the upper valve seat.

[0013] As a further description of the above technical solution: the inner wall of the sealing ring groove provided in the inner wall of the upper valve seat is inserted with an upper sealing ring A and an upper sealing ring B, and the top of each of the upper sealing ring A and the upper sealing ring B is fixedly connected with a top block.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1. In the utility model, the lower sealing ring A, the lower sealing ring B, the upper sealing ring A, the upper sealing ring B, the guide rod, the guide block and the spring are matched, the sealing ring provides basic sealing, the guide rod positions the guide block and the sealing ring, the guide block is slightly adjusted in position under the action of the spring elasticity, the lower sealing ring and the upper sealing ring are tightly attached, gap generation is avoided, and the sealing performance is remarkably improved.

[0016] 2. In the utility model, the dismounting mechanism formed by the pressing plate, the top rod, the inner rod and the top block realizes convenient replacement of the upper sealing ring, the pressing plate is pressed down, the top rod and the inner rod are driven to move downward, the upper sealing ring is pushed out from the groove by the top block, maintenance difficulty is reduced, and equipment downtime is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model proposes a kind of overall structure schematic diagram of high-flow reverse water valve core seat sealing structure;

[0018] Figure 2 The utility model proposes a kind of lower valve seat structure schematic diagram of high-flow reverse water valve core seat sealing structure;

[0019] Figure 3The utility model provides a high flow reverse water inlet valve core seat sealing structure's Figure 2 A amplification structure schematic diagram in among;

[0020] Figure 4 The utility model provides a high flow reverse water inlet valve core seat sealing structure's upper valve seat's sectional structure schematic diagram.

[0021] Legend:

[0022] 1, lower valve seat, 2, upper valve seat, 3, connecting flange, 4, bolt A, 5, import, 6, valve flap, 7, connecting mechanism, 711, guide rod, 712, spring, 713, guide block, 714, lower sealing ring A, 715, lower sealing ring B, 8, dismounting mechanism, 811, inner rod, 812, mounting plate, 813, bolt B, 814, jacking rod, 815, pressing plate, 816, upper sealing ring A, 817, upper sealing ring B, 818, top block. Specific embodiments

[0023] The utility model discloses a high flow reverse water inlet valve core seat sealing structure's

[0024] Refer to Figures 1-3The utility model provides a kind of embodiment: a high flow reverse water inlet valve core seat sealing structure, including lower valve seat 1 and upper valve seat 2, build up the main body framework of valve core seat sealing structure, provide the basic platform for the installation and collaborative work of each component in it, meet the use requirement of high flow reverse water scene to valve core seat, the inside of lower valve seat 1 is provided with connecting mechanism 7, connecting mechanism 7 is responsible for realizing the reliable connection of lower valve seat 1 and upper valve seat 2, while guaranteeing the stability of both connection, to provide support for enhancing sealing performance, the inside of upper valve seat 2 is provided with dismounting mechanism 8, it is convenient to carry out the convenient dismounting of sealing component in upper valve seat 2, reduce the difficulty of subsequent maintenance and replacement, connecting mechanism 7 includes guide rod 711, provide support for guide rod 711, so that it can stably play the guiding effect, the bottom of guide rod 711 is fixedly connected in the inner wall of lower valve seat 1, the outer wall of guide rod 711 is slidably connected with guide block 713, guide block 713 can slide along the axial direction of guide rod 711, realize the position adjustment of lower sealing ring, the bottom of guide block 713 is fixedly connected with spring 712, spring 712 provides elastic force, guide block 713 is moved upwards, and then compresses lower sealing ring, enhances sealing effect, the bottom of spring 712 is fixedly connected in the inner wall of lower valve seat 1, the inner wall of lower valve seat 1 is provided with lower sealing ring A 714 and lower sealing ring B 715, the inner wall of lower valve seat 1 and upper valve seat 2 is provided with two groups of sealing ring grooves, and the both synergistically, improve the sealing performance of lower valve seat 1, reduce fluid leakage, the outer wall of lower sealing ring A 714 and lower sealing ring B 715 is provided with through hole, connecting mechanism 7 is arranged in the inner wall of sealing ring groove, the outer wall of lower sealing ring A 714 and lower sealing ring B 715 is inserted in the outer wall of guide rod 711, under the elastic force of spring 712, lower sealing ring is better and the upper sealing ring in upper valve seat 2 is adhered, improve overall sealing effect.

[0025] Refer to Figures 1-3The inner wall of the lower valve seat 1 and the inner wall of the upper valve seat 2 are provided with valve petals 6, which can control the on-off and flow rate of the fluid, meet the precise regulation and control requirements of the fluid under the high-flow reverse water inlet working condition, the outer wall of the lower valve seat 1 and the outer wall of the upper valve seat 2 are fixedly connected with the inlet 5, the outer wall of the lower valve seat 1 and the outer wall of the upper valve seat 2 are fixedly connected with the connecting flange 3, the outer wall of the connecting flange 3 is threadedly connected with the bolt A 4, the dismounting mechanism 8 comprises an inner rod 811, the outer wall of the upper valve seat 2 is provided with a through opening, the inner rod 811 is inserted into the inner wall of the through opening, the inner rod 811 serves as a force transmission component and transmits the externally applied force to the ejector rod 814, so that the ejection operation of the upper sealing ring is realized, the outer wall of the inner rod 811 is fixedly connected with the mounting plate 812, the mounting plate 812 provides a mounting position for the bolt B 813, realizes the detachable fixing of the inner rod 811 and the upper valve seat 2, and facilitates the installation and maintenance of the dismounting mechanism 8, the outer wall of the mounting plate 812 is threadedly connected with the bolt B 813, the top of the bolt B 813 is threadedly connected with the outer wall of the upper valve seat 2, ensures the stability of the connection between the mounting plate 812 and the upper valve seat 2, prevents the inner rod 811 from being displaced during the working process, the top of the inner rod 811 is inserted with the ejector rod 814, the outer wall of the ejector rod 814 is fixedly connected with the pressing plate 815, the through opening provided in the outer wall of the upper valve seat 2 is in communication with the sealing ring groove in the inner wall of the upper valve seat 2, the inner wall of the sealing ring groove provided in the inner wall of the upper valve seat 2 is inserted with the upper sealing ring A 816 and the upper sealing ring B 817, further improves the sealing performance of the upper valve seat 2, cooperates with the lower sealing ring of the lower valve seat 1, and enhances the overall sealing effect, the inner wall of the sealing ring groove provided in the inner wall of the upper valve seat 2 is inserted with the upper sealing ring A 816 and the upper sealing ring B 817, the top of the upper sealing ring A 816 and the upper sealing ring B 817 is fixedly connected with the top block 818, the top block 818 increases the contact area of the ejector rod 814 and the upper sealing ring, ensures that the upper sealing ring is evenly stressed and can be smoothly ejected.

[0026] Working principle: the inner part of the sealing ring groove of the lower valve seat 1 is inserted with the lower sealing ring A 714 and the lower sealing ring B 715, the two groups of sealing rings increase the overall sealing performance, the lower sealing ring is inserted in the guide rod 711, the guide block 713 slidingly connected with the outer wall of the guide rod 711 abuts against the lower sealing ring through opening, cooperates with the upper sealing ring in the upper valve seat 2, and tightly abuts against the upper sealing ring under the action of the spring 712 when the upper valve seat 2 and the lower valve seat 1 are connected, avoids the existence of gaps between the sealing rings after long-term use, the dismounting mechanism 8 is arranged in the inner part of the upper valve seat 2, when the upper sealing ring is inserted into the sealing ring groove of the upper valve seat 2 and needs to be dismounted, the pressing plate 815 extending out of the outer wall of the upper valve seat 2 is pressed down, when the pressing plate 815 is lowered, the ejector rod 814 is moved downward, when the ejector rod 814 is moved downward, the upper sealing pad inserted into the sealing ring groove is ejected, which is convenient for the subsequent quick replacement of the upper sealing ring.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high-flow reverse water inlet valve seat seal structure, comprising a lower valve seat (1) and an upper valve seat (2), characterized in that: The inner part of the lower valve seat (1) is provided with a connecting mechanism (7), the inner part of the upper valve seat (2) is provided with a dismounting mechanism (8), the connecting mechanism (7) comprises a guide rod (711), the bottom of the guide rod (711) is fixedly connected to the inner wall of the lower valve seat (1), the outer wall of the guide rod (711) is slidably connected with a guide block (713), the bottom of the guide block (713) is fixedly connected with a spring (712), the bottom of the spring (712) is fixedly connected to the inner wall of the lower valve seat (1), and the inner wall of the lower valve seat (1) is provided with a lower sealing ring A (714) and a lower sealing ring B (715).

2. The high flow reverse inlet valve seat seal structure of claim 1, wherein: The inner wall of the lower valve seat (1) and the inner wall of the upper valve seat (2) are provided with two groups of sealing ring grooves, and the outer wall of the lower sealing ring A (714) and the lower sealing ring B (715) is provided with a through hole.

3. The high flow reverse inlet valve trim seat seal structure of claim 1, wherein: The connecting mechanism (7) is arranged in the inner wall of the sealing ring groove, and the outer wall of the lower sealing ring A (714) and the lower sealing ring B (715) is inserted into the outer wall of the guide rod (711).

4. The high flow reverse inlet valve trim seat seal structure of claim 1, wherein: The inner wall of the lower valve seat (1) and the inner wall of the upper valve seat (2) are provided with a valve clack (6), and the outer wall of the lower valve seat (1) and the upper valve seat (2) is fixedly connected with an inlet (5).

5. The high flow reverse inlet valve trim seat seal structure of claim 1, wherein: The outer wall of the connecting flange (3) is threadedly connected with a bolt A (4).

6. The high flow reverse inlet valve seat seal structure of claim 1, wherein: The dismounting mechanism (8) comprises an inner rod (811), the outer wall of the upper valve seat (2) is provided with a through hole, the inner rod (811) is inserted into the inner wall of the through hole, the outer wall of the inner rod (811) is fixedly connected with a mounting plate (812), the outer wall of the mounting plate (812) is threadedly connected with a bolt B (813), and the top of the bolt B (813) is threadedly connected to the outer wall of the upper valve seat (2).

7. The high flow reverse inlet valve seat seal structure of claim 6, wherein: The top of the inner rod (811) is inserted with a top rod (814), the outer wall of the top rod (814) is fixedly connected with a pressing plate (815), and the through hole provided in the outer wall of the upper valve seat (2) is in communication with the sealing ring groove in the inner wall of the upper valve seat (2).

8. The high flow reverse inlet valve seat seal structure of claim 1, wherein: The inner wall of the sealing ring groove provided in the inner wall of the upper valve seat (2) is inserted with an upper sealing ring A (816) and an upper sealing ring B (817), and the top of the upper sealing ring A (816) and the upper sealing ring B (817) is fixedly connected with a top block (818).

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