A fast opening and closing gate valve

Abstract

The utility model relates to the field of gate valves, and in particular to a fast opening and closing gate valve, comprising a gate valve body, the gate valve body comprising a valve seat and a gate plate arranged on the valve seat, the gate plate being provided with a groove on one side of the water inlet end, the groove being provided with a connecting groove, the connecting groove being connected to the bottom of the gate plate. The utility model allows water to enter the connecting groove from the groove under the impact force of the cut-off of the water flow, and allows the water to directly impact the inner wall of the bottom of the valve seat through the connecting groove to clean it, and when flushing, the water flow must be cut off first, and at the same time, a certain space is left between the bottom of the gate plate and the valve seat, so that it can also cause the effect of water hammer, so that the water flow has a large impact force, and then the gate plate is repeatedly opened and closed, so that the flushing can effectively clean the dirt.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a fast opening and closing gate valve. Background Art

[0002] A gate valve is an opening and closing component, the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually the sealing surface is welded with metal materials to increase wear resistance.

[0003] The valve seat of a general gate valve is designed to allow the gate plate to enter and seal when it is lowered, thereby closing the gate valve to cut off the water flow. However, long-term use will cause dirt on the groove wall at the bottom, so that the gate plate cannot fit well with the ring wall when closed, which may cause water leakage. Utility Model Content

[0004] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a fast opening and closing gate valve to solve the existing problems.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a quick opening and closing gate valve, including a gate valve body, the gate valve body including a valve seat and a gate plate arranged on the valve seat, the gate plate is provided with a groove on one side of the water inlet end, a connecting groove is provided in the groove, and the connecting groove is connected to the bottom of the gate plate.

[0007] In some embodiments, a filter screen is disposed in the groove.

[0008] In some embodiments, the diameter of the connecting groove decreases from the groove to the bottom of the gate plate.

[0009] In some embodiments, sealing rings are provided on both sides of the gate.

[0010] In some embodiments, annular grooves are provided on both sides of the gate plate, a sliding plate is provided in the annular groove, a spring is provided between the sliding plate and the annular groove, and the sealing ring is connected to the sliding plate.

[0011] In some embodiments, protrusions are provided on both sides of the inner wall of the valve seat.

[0012] In some embodiments, the groove is arc-shaped.

[0013] By adopting the above technical scheme, the beneficial effect of the utility model is as follows: the utility model quickly opens and closes the gate valve, and under the impact force of the water flow cutoff, water enters the connecting groove from the groove, and directly impacts the inner wall of the bottom of the valve seat through the connecting groove to rinse it clean. When flushing, the water flow should be cut off first, and at the same time, a certain space should be left between the bottom of the gate plate and the valve seat, so that it can also cause the effect of water hammer, so that the water flow has a large impact force, and then the gate plate is repeatedly opened and closed, so that the dirt can be effectively cleaned by flushing.

[0014] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0015] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments described with reference to various figures and drawings.

[0016] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the gate valve of some embodiments of the utility model;

[0021] Figure 2 The following are structural cross-sectional views of gate valves according to some embodiments of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model, but not to limit the utility model.

[0023] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0026] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0027] Reference Figure 1-2 , Figure 1 It is a schematic diagram of the structure of the gate valve of some embodiments of the utility model; Figure 2 The following are structural cross-sectional views of gate valves according to some embodiments of the present invention.

[0028] The utility model provides a fast opening and closing gate valve, comprising a gate valve body 1, the gate valve body 1 comprising a valve seat 11 and a gate plate 2 arranged on the valve seat 11, the gate plate 2 is provided with a groove 21 on one side of the water inlet end, a connecting groove 22 is provided in the groove 21, and the connecting groove 22 is connected to the bottom of the gate plate 2.

[0029] By quickly opening and closing the gate valve, under the impact force of the water flow cutoff, water enters the connecting groove 22 from the groove 21, and is allowed to directly impact the bottom inner wall of the valve seat 11 through the connecting groove 22 to rinse it clean. When flushing, the water flow should be cut off first, and at the same time, a certain space should be left between the bottom of the gate plate 2 and the valve seat 11, so that it can also cause the effect of water hammer and make the water flow have a great impact force. Then, the gate plate 2 is opened and closed repeatedly. In this way, although there is a certain amount of water at the bottom, under the impact of the water flow, when the gate plate 2 is repeatedly opened and closed, the water can be relatively flushed away, and the impact cleaning can effectively clean the dirt.

[0030] According to some embodiments of the present invention, optionally, a filter screen 23 is provided in the groove 21. The filter screen 23 is provided to prevent the connection groove 22 from being blocked, which would result in the inability to clean the connection groove 22.

[0031] According to some embodiments of the utility model, the diameter of the connecting groove 22 is optionally reduced from the groove 21 to the bottom of the gate plate 2. This makes it easy for water to flow into the connecting groove 22, because the reduced diameter can increase the pressure of the water flow, allowing it to be better cleaned.

[0032] According to some embodiments of the present invention, optionally, both sides of the gate plate 2 are provided with sealing rings 24. In order to make the gate plate 2 have good sealing performance.

[0033] According to some embodiments of the utility model, optionally, both sides of the gate plate 2 are provided with annular grooves 25, a sliding plate 26 is provided in the annular grooves 25, a spring 27 is provided between the sliding plate 26 and the annular grooves 25, and the sealing ring 24 is connected to the sliding plate 26. The annular grooves 25 are provided with matching springs 27, and the sliding plate 26 is added therein, so that the sealing ring 24 can be tightened and opened when the gate plate 2 is opened and closed up and down. When the gate plate 2 is worn, the spring 27 can push out the sliding plate 26, driving the sealing ring 24 to push against the inner wall of the valve seat 11, thereby increasing its sealing performance and durability, and it is not necessary to frequently replace the sealing ring 24.

[0034] According to some embodiments of the present invention, optionally, protrusions 12 are provided on both sides of the inner wall of the valve seat 11 to allow the valve seat 11 to better fit the sealing ring 24 and increase the sealing performance.

[0035] According to some embodiments of the present invention, the groove 21 is optionally in an arc shape so that water can flow into the connecting groove 22 better.

[0036] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0037] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the utility model. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0038] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the utility model. However, those skilled in the relevant art will understand that the utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A fast opening and closing gate valve, characterized in that: include: The gate valve body comprises a valve seat and a gate plate arranged on the valve seat. A groove is arranged on one side of the gate plate at the water inlet end. A connecting groove is arranged in the groove. The connecting groove is connected to the bottom of the gate plate.

2. The fast opening and closing gate valve according to claim 1 is characterized in that: A filter screen is arranged in the groove.

3. The fast opening and closing gate valve according to claim 1 is characterized in that: The diameter of the communicating groove decreases from the groove to the bottom of the gate plate.

4. The fast opening and closing gate valve according to claim 1 is characterized in that: Sealing rings are provided on both sides of the gate.

5. The fast opening and closing gate valve according to claim 4 is characterized in that: Annular grooves are arranged on both sides of the gate plate, a sliding plate is arranged in the annular groove, a spring is arranged between the sliding plate and the annular groove, and the sealing ring is connected to the sliding plate.

6. The fast opening and closing gate valve according to claim 4 or 5, characterized in that: The inner wall of the valve seat is provided with protrusions on both sides.

7. The fast opening and closing gate valve according to claim 1 is characterized in that: The groove is in an arc shape.

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