Blow-down gate valve capable of preventing sealing pair from being damaged
By introducing magnetic parts and sewage discharge devices into the gate valve, the problem of easy damage to the sealing surface of the gate valve is solved, excellent sealing and simple sewage discharge operations are achieved, and the service life of the gate valve is extended.
Patent Information
- Application Number
- CN202422112988.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The sealing surface of existing gate valves is easily scratched by impurities such as rust and sand, resulting in failure of sealing performance and difficulty in repairing, affecting service life and normal operation of the water supply system.
A sewage gate valve including magnetic parts and sewage discharge devices is designed to absorb rust in the valve body through the magnetic parts, and impurities are regularly discharged through the sewage discharge device to avoid scratches on the sealing surface and ensure sealing.
Effectively prevent scratches on the sealing surface of the gate valve, maintain excellent sealing performance, simplify sewage discharge operations, extend service life, and ensure the normal operation of the water supply system.
Smart Images
Figure CN223120824U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a sewage drain valve for preventing damage to the sealing pair. Background Art
[0002] The gate valve used in the conventional household water supply pipeline has a hard seal structure. The valve body and the gate plate are both made of lead brass. The sealing surfaces of the two ensure the sealing performance of the product with a lower roughness and a higher fitting accuracy.
[0003] However, in actual installation and use, due to the presence of impurities such as rust and sediment during the laying and installation of the water supply pipeline, and the water scale formed during long-term use, it is very easy to scratch the surface of the sealing pair of the gate valve, resulting in the failure of the sealing performance when the gate valve is closed. After the sealing surface is damaged, the product is difficult to repair, and only by replacing the product can it cause unnecessary trouble to users and water supply enterprises in daily management. Summary of the Invention
[0004] Aiming at the above problems existing in the existing gate valves, the present invention aims to provide a sewage drain valve for preventing damage to the sealing pair, which has simple sewage discharge operation, excellent sealing performance and long service life.
[0005] The specific technical solutions are as follows:
[0006] A sewage drain valve for preventing damage to the sealing pair, comprising: a valve body and a sewage pipe group. One end of the sewage pipe group is communicated with the bottom of the valve body, and a magnetic member for adsorbing rust in the valve body is arranged inside one end of the sewage pipe group, and a sewage discharge device for opening or closing the sewage pipe group is arranged at the other end.
[0007] As a further improvement and optimization of this solution, the sewage discharge device includes: a sewage discharge opening and closing sleeve. One end of the sewage discharge opening and closing sleeve is threadedly sleeved outside the sewage pipe group, and a sewage discharge hole is arranged at the other end, and the other end of the sewage pipe group is in sealing cooperation with the sewage discharge hole;
[0008] Wherein, at least one through hole is arranged on the side wall of the other end of the sewage pipe group. When the sewage discharge opening and closing sleeve is rotated to make the sewage discharge opening and closing sleeve move axially and make the other end of the sewage pipe group separate from the sewage discharge hole, the through hole is communicated with the sewage discharge hole.
[0009] As a further improvement and optimization of this solution, the sewage discharge hole is a conical hole, and the other end of the sewage pipe group is in a conical structure and is matched with the conical hole.
[0010] As a further improvement and optimization of this solution, a first sealing ring is sleeved on the other end of the sewage pipe group.
[0011] As a further improvement and optimization of this solution, the first sealing ring is a conical sealing ring.
[0012] As a further improvement and optimization of this solution, a second sealing ring is also provided between the sewage discharge opening and closing sleeve and the outer wall of the sewage discharge pipe group.
[0013] As a further improvement and optimization of this solution, the second sealing ring is an O-ring.
[0014] As a further improvement and optimization of this solution, the sewage discharge pipe group includes:
[0015] A sewage discharge interface, one end of which is communicated with the bottom of the valve body, and the magnetic part is arranged in the sewage discharge interface;
[0016] A diversion joint, one end of which is connected to the other end of the sewage discharge interface, and the sewage discharge opening and closing sleeve is threadedly sleeved outside the diversion joint, and the through hole is arranged on the side wall of the other end of the diversion joint.
[0017] As a further improvement and optimization of this solution, the magnetic part is an annular magnet;
[0018] Wherein, an internal step is provided in the sewage discharge interface, the annular magnet is coaxially arranged in the sewage discharge interface, and one side of the annular magnet is in limit fit with the internal step;
[0019] One end of the diversion joint is coaxially and hermetically bonded to the other end of the sewage discharge interface through anaerobic glue, and one end of the diversion joint is in limit fit with the other side of the annular magnet.
[0020] As a further improvement and optimization of this solution, the sewage discharge interface and the valve body are of an integrated structure.
[0021] The positive effects of the above technical solutions compared with the prior art are as follows:
[0022] (1) The utility model adsorbs the rust in the valve body through the magnetic part, and regularly opens the sewage discharge pipe group through the sewage discharge device to discharge the adsorbed rust impurities outwards, effectively avoiding scratches on the sealing surface between the gate plate and the valve body in the valve body, ensuring excellent sealing performance when the gate valve is closed, improving the water quality of the pipeline, and further ensuring the performance of downstream household appliances such as water dispensers, water heaters, and dishwashers.
[0023] (2) By rotating the sewage discharge opening and closing valve, the sewage discharge opening and closing valve can move axially, and the other end of the sewage discharge pipe group can be separated from the sewage discharge hole, so as to release the blockage of the sewage discharge hole, and the rust impurities are discharged outwards through the through hole and the sewage discharge hole. The sewage discharge operation is not only simple and fast, and does not require professional personnel to perform the sewage discharge operation, but also can realize online sewage discharge. When operating, the pipeline does not need to be closed, and the normal water use of users is not affected. Description of the Drawings
[0024] Figure 1 This is a schematic structural view of a sewage drain valve for preventing damage to the sealing pair of the present utility model;
[0025] Figure 2 This is a schematic structural view of the sewage pipe group of a sewage drain valve for preventing damage to the sealing pair of the present utility model;
[0026] Figure 3 This is a schematic structural view of the diversion joint of a sewage drain valve for preventing damage to the sealing pair of the present utility model;
[0027] In the drawings: 1, valve body; 2, magnetic part; 3, sewage pipe group; 4, sewage opening and closing sleeve; 5, first sealing ring; 6, second sealing ring; 31, sewage interface; 32, diversion joint; 41, sewage discharge hole; 311, built-in step; 321, through hole; 322, external step. Detailed implementation manners
[0028] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0029] In the description of the present utility model, it should be noted that when terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, when terms such as "first", "second", "third" appear, they are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, when terms such as "installation", "connection", "connection" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0031] Figure 1 This is a schematic structural view of a sewage drain valve for preventing damage to the sealing pair of the present utility model,Figure 2 This is a schematic structural view of the sewage discharge pipe group of a sewage discharge gate valve for preventing damage to the sealing pair of the present utility model. Figure 3 This is a schematic structural view of the diversion joint of a sewage discharge gate valve for preventing damage to the sealing pair of the present utility model. As Figures 1-3 shown, a sewage discharge gate valve for preventing damage to the sealing pair of a preferred embodiment is shown, including: a valve body 1 and a sewage discharge pipe group 3. One end of the sewage discharge pipe group 3 is communicated with the bottom of the valve body 1, and a magnetic member 2 for adsorbing rust in the valve body 1 is provided inside one end of the sewage discharge pipe group 3, and the other end has a sewage discharge device for opening or closing the sewage discharge pipe group 3.
[0032] In this embodiment, the rust in the valve body 1 is adsorbed by the magnetic member 2, and the adsorbed rust impurities are discharged outward through the sewage discharge device by regularly opening the sewage discharge pipe group 3, effectively avoiding scratches on the sealing surface between the gate plate in the valve body 1 and the valve body 1. While ensuring excellent sealing performance when the gate valve is closed, it also improves the water quality of the pipeline and can further ensure the performance of downstream household appliances such as water dispensers, water heaters, and dishwashers.
[0033] Further, as a preferred embodiment, the sewage discharge device includes: a sewage discharge opening and closing sleeve 4. One end of the sewage discharge opening and closing sleeve 4 is threadedly sleeved outside the sewage discharge pipe group 3, and the other end has a sewage discharge hole 41, and the other end of the sewage discharge pipe group 3 is in sealing cooperation with the sewage discharge hole 41; wherein, at least one through hole 321 is provided on the side wall of the other end of the sewage discharge pipe group 3. When the sewage discharge opening and closing sleeve 4 is rotated to make the sewage discharge opening and closing sleeve 4 move axially and the other end of the sewage discharge pipe group 3 is separated from the sewage discharge hole 41, the through hole 321 is communicated with the sewage discharge hole 41.
[0034] In this embodiment, by rotating the sewage discharge opening and closing valve, the sewage discharge opening and closing valve can move axially, and the other end of the sewage discharge pipe group 3 is separated from the sewage discharge hole 41, thereby releasing the blockage of the sewage discharge hole 41, and the rust impurities are discharged outward through the through hole 321 and the sewage discharge hole 41. Not only is the sewage discharge operation simple and fast, without the need for professional personnel to perform the sewage discharge operation, but also online sewage discharge can be realized. During the operation, there is no need to close the pipeline, and it does not affect the normal water use of users.
[0035] Further, as a preferred embodiment, in order to improve the sealing effect of the other end of the sewage discharge pipe group 3 on the sewage discharge hole 41, the sewage discharge hole 41 is a tapered hole, and the other end of the sewage discharge pipe group 3 is in a tapered structure and matches the tapered hole.
[0036] Further, as a preferred embodiment, in order to further improve the sealing effect of the other end of the sewage discharge pipe group 3 on the sewage discharge hole 41, a first sealing ring 5 is sleeved on the other end of the sewage discharge pipe group 3.
[0037] Further, as a preferred embodiment, the first sealing ring 5 is a tapered sealing ring.
[0038] Further, as a preferred embodiment, a second sealing ring 6 is also provided between the outer wall of the sewage discharge opening and closing sleeve 4 and the sewage discharge pipe group 3, improving the sealing effect between the inner wall of the sewage discharge opening and closing sleeve 4 and the outer wall of the sewage discharge pipe group 3.
[0039] Further, as a preferred embodiment, the second sealing ring 6 is an O-ring.
[0040] Further, as a preferred embodiment, the sewage discharge pipe group 3 includes a sewage discharge interface 31 and a diversion joint 32. One end of the sewage discharge interface 31 is communicated with the bottom of the valve body 1, the magnetic member 2 is arranged in the sewage discharge interface 31, one end of the diversion joint 32 is connected to the other end of the sewage discharge interface 31, and the sewage discharge opening and closing sleeve 4 is threadedly sleeved outside the diversion joint 32. A through hole 321 is arranged on the side wall of the other end of the diversion joint 32.
[0041] More preferably, a plurality of through holes 321 are provided and distributed along the circumferential direction of the diversion joint 32.
[0042] Further, as a preferred embodiment, the magnetic member 2 is an annular magnet; for the convenience of installing the annular magnet, an internal step 311 is provided in the sewage discharge interface 31, the annular magnet is coaxially arranged in the sewage discharge interface 31, and one side of the annular magnet is in limit fit with the internal step 311; one end of the diversion joint 32 is coaxially and hermetically bonded to the other end of the sewage discharge interface 31 through anaerobic glue, and one end of the diversion joint 32 is in limit fit with the other side of the annular magnet.
[0043] Specifically, the diversion joint 32 and the sewage discharge interface 31 are hermetically bonded by applying anaerobic glue on the outer wall of one end of the diversion joint 32 and the inner wall of the other end of the sewage discharge interface 31.
[0044] More preferably, in order to improve the installation accuracy of the diversion joint 32, an external step 322 is further provided on the outside of the diversion joint 32. When one end of the diversion joint 32 is in limit fit with the other side of the annular magnet, the external step 322 is in limit fit with the other end of the sewage discharge interface 31.
[0045] Further, as a preferred embodiment, the sewage discharge interface 31 and the valve body 1 are of an integral structure.
[0046] The above are only preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims
1. A sewage sluice valve for preventing damage to the sealing pair, characterized in that, Comprising: A valve body and a sewage discharge pipe group, one end of the sewage discharge pipe group is communicated with the bottom of the valve body, and a magnetic member for adsorbing rust in the valve body is provided inside one end of the sewage discharge pipe group, and a sewage discharge device for opening or closing the sewage discharge pipe group is provided at the other end.
2. The sewage sluice valve for preventing damage to the sealing pair according to claim 1, characterized in that, The sewage discharge device includes: a sewage discharge opening and closing sleeve, one end of the sewage discharge opening and closing sleeve is threadedly sleeved outside the sewage discharge pipe group, the other end has a sewage discharge hole, and the other end of the sewage discharge pipe group is in sealing cooperation with the sewage discharge hole; Wherein, at least one through hole is provided on the side wall of the other end of the sewage discharge pipe group. When the sewage discharge opening and closing sleeve is rotated to make the sewage discharge opening and closing sleeve move axially and the other end of the sewage discharge pipe group is separated from the sewage discharge hole, the through hole is communicated with the sewage discharge hole.
3. The sewage sluice valve for preventing damage to the sealing pair according to claim 2, characterized in that, The sewage discharge hole is a tapered hole, and the other end of the sewage discharge pipe group is in a tapered structure and matches the tapered hole.
4. The sewage drain valve for preventing damage to the sealing pair according to claim 3, characterized in that A first sealing ring is sleeved on the other end of the sewage discharge pipe group.
5. The sewage drain valve for preventing damage to the sealing pair according to claim 4, wherein The first sealing ring is a tapered sealing ring.
6. The sewage drain valve for preventing damage to the sealing pair according to any one of claims 2-5, characterized in that, A second sealing ring is further provided between the sewage discharge opening and closing sleeve and the outer wall of the sewage discharge pipe group.
7. The sewage sluice valve for preventing damage to the sealing pair according to claim 6, characterized in that, The second sealing ring is an O-ring.
8. The sewage drain valve for preventing damage to the sealing pair according to any one of claims 2-5, characterized in that, The sewage discharge pipe group includes: A sewage discharge interface, one end of the sewage discharge interface is communicated with the bottom of the valve body, and the magnetic member is arranged inside the sewage discharge interface; A diversion joint, one end of the diversion joint is connected to the other end of the sewage discharge interface, and the sewage discharge opening and closing sleeve is threadedly sleeved outside the diversion joint, and the through hole is arranged on the side wall of the other end of the diversion joint.
9. The sewage sluice valve for preventing damage to the sealing pair according to claim 8, characterized in that The magnetic member is an annular magnet; Wherein, an internal step is provided inside the sewage discharge interface, the annular magnet is coaxially arranged inside the sewage discharge interface, and one side of the annular magnet is in limit cooperation with the internal step; One end of the diversion joint is coaxially and hermetically bonded to the other end inside the sewage discharge interface through anaerobic glue, and one end of the diversion joint is in limit cooperation with the other side of the annular magnet.
10. The sewage drain valve for preventing damage to the sealing pair according to claim 8, characterized in that, The sewage discharge interface and the valve body are of an integrated structure.