Manual valve convenient to open and close

Abstract

The utility model relates to the technical field of valves, in particular to a manual valve convenient to open and close, which comprises a valve body, a valve internal thread seat is fixedly arranged at the upper end of the valve body, an external rotating rod is in threaded connection with the interior of the valve internal thread seat, a valve plate mechanism is fixedly arranged at one end of the external rotating rod, and the valve plate mechanism comprises a valve plate, a valve rod and a valve rod. The interior of the valve plate is hollow, corresponding valve holes are formed in the upper side and the lower side of the valve plate, and one end of the outer rotating rod is fixedly connected with the valve plate. A small rotating wheel is firstly rotated to drive an inner rotating rod, the inner rotating rod drives an inner rotating plate to rotate, so that a first through hole in the surface of the inner rotating plate is aligned with a valve hole in the surface of a valve plate, and the pressure difference between the two sides of a water inlet and the two sides of a water outlet is balanced; and then the large rotating wheel is rotated to drive the inner rotating rod to rotate to rotate the valve plate so as to open the valve port.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a manual valve which is easy to open and close. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc.

[0003] Valves are control components in fluid delivery systems, performing functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow and pressure relief. Valves used in fluid control systems come in a wide variety of types and specifications, from the simplest shutoff valves to the most complex valves used in automatic control systems.

[0004] When using existing valves, the different pressures on both sides of the valve may make it very difficult or even impossible to open the valve. As a result, in an emergency, the valve cannot be opened in time. Therefore, a manual valve that is easy to open and close is needed to improve the above problem. Utility Model Content

[0005] The purpose of the present utility model is to provide a manual valve that is easy to open and close, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A manual valve that is easy to open and close, comprising a valve body, an internally threaded valve seat fixedly provided at the upper end of the valve body, an external rotating rod threadedly connected to the internal thread of the internally threaded valve seat, a valve plate mechanism fixedly provided at one end of the external rotating rod, and the valve plate mechanism comprising:

[0008] The valve plate is hollow inside, with corresponding valve holes provided on the upper and lower sides of the valve plate, and one end of the outer rotating rod is fixedly connected to the valve plate;

[0009] An inner rotating plate is rotatably arranged inside the valve plate, a fan-shaped limiting groove is provided at the bottom of the inner rotating plate, a limiting edge corresponding to the limiting groove is fixed at the bottom of the limiting groove, and a through hole 1 is provided on the surface of the inner rotating plate corresponding to the valve hole;

[0010] The inner rotating rod is rotatably arranged on the inner side of the outer rotating rod, and one end of the inner rotating rod passes through the valve plate and is fixedly connected to the center of the inner rotating plate.

[0011] As a preferred solution of the present invention, a small rotating wheel is fixedly provided on the outer upper end of the inner rotating rod, and a large rotating wheel is fixedly provided on the outer upper end of the outer rotating rod.

[0012] As a preferred solution of the present invention, a water inlet and a water outlet are respectively provided on both sides of the valve body, and a valve port is provided on the valve plate corresponding to the water inlet and the water outlet.

[0013] As a preferred solution of the present invention, the valve internal thread seat is provided with threads inside, and the valve internal thread seat is threadedly connected to the external rotating rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the utility model, the small rotating wheel is first rotated to drive the inner rotating rod, and the inner rotating plate is driven to rotate by the inner rotating rod, so that the through hole on the surface of the inner rotating plate is aligned with the valve hole on the surface of the valve plate, thereby balancing the pressure difference on both sides of the water inlet and the water outlet. During rotation, the limiting edge is limited inside the limiting slide groove at the bottom of the inner rotating plate, and then the large rotating wheel is rotated to drive the inner rotating rod to rotate, and the valve plate is rotated to open the valve port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall internal structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the valve plate mechanism of the present invention from a top view;

[0018] Figure 3 This is a bottom-up perspective diagram of the internal structure of the valve plate mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the valve plate mechanism of the present utility model.

[0020] In the figure: 1. Small rotor; 2. Large rotor; 3. Inner rotating rod; 4. Outer rotating rod; 5. Valve internal thread seat; 6. Valve body; 7. Valve plate mechanism; 8. Valve port; 9. Water inlet; 10. Water outlet; 11. Through hole 1; 12. Inner rotating plate; 13. Limiting edge; 14. Valve plate; 15. Valve hole; 16. Limiting slide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0023] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0024] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0025] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0026] See also Figure 1-4 , the utility model provides a technical solution:

[0027] A manual valve that is easy to open and close includes a valve body 6, an internal threaded seat 5 is fixed to the upper end of the valve body 6, an external rotating rod 4 is connected to the internal thread of the internal threaded seat 5, and a valve plate mechanism 7 is fixed to one end of the external rotating rod 4. The valve plate mechanism 7 includes:

[0028] The valve plate 14 is hollow inside, with corresponding valve holes 15 provided on the upper and lower sides of the valve plate 14, and one end of the outer rotating rod 4 is fixedly connected to the valve plate 14;

[0029] The inner rotating plate 12 is rotatably disposed inside the valve plate 14. A fan-shaped limiting groove 16 is provided at the bottom of the inner rotating plate 12. A limiting edge 13 corresponding to the limiting groove 16 is fixedly provided at the bottom of the limiting groove 16. A through hole 11 is provided on the surface of the inner rotating plate 12 corresponding to the valve hole 15.

[0030] The inner rotating rod 3 is rotatably arranged on the inner side of the outer rotating rod 4, and one end of the inner rotating rod 3 passes through the valve plate 14 and is fixedly connected to the center of the inner rotating plate 12. First, the small rotating wheel 1 is rotated to drive the inner rotating rod 3, and the inner rotating plate 12 is driven to rotate by the inner rotating rod 3, so that the through hole 11 on the surface of the inner rotating plate 12 is aligned with the valve hole 15 on the surface of the valve plate 14, thereby balancing the pressure difference on both sides of the water inlet 9 and the water outlet 10. During rotation, the limiting edge 13 is limited inside the limiting slide groove 16 at the bottom of the inner rotating plate 12, and then the large rotating wheel 2 is rotated to drive the inner rotating rod 3 to rotate, and the valve plate 14 is screwed up to open the valve port 8.

[0031] As an example of the present invention, a small rotating wheel 1 is fixedly provided at the outer upper end of the inner rotating rod 3 , and a large rotating wheel 2 is fixedly provided at the outer upper end of the outer rotating rod 4 .

[0032] As an example of the present invention, a water inlet 9 and a water outlet 10 are respectively provided on both sides of the valve body 6 , and a valve port 8 is provided between the water inlet 9 and the water outlet 10 corresponding to the valve plate 14 .

[0033] As an example of the present invention, a thread is provided inside the valve internal thread seat 5 , and the valve internal thread seat 5 is threadedly connected to the external rotating rod 4 .

[0034] Working principle: When in use, first rotate the small wheel 1 to drive the inner rotating rod 3, and then drive the inner rotating plate 12 to rotate through the inner rotating rod 3, so that the through hole 11 on the surface of the inner rotating plate 12 is aligned with the valve hole 15 on the surface of the valve plate 14, thereby balancing the pressure difference on both sides of the water inlet 9 and the water outlet 10. During rotation, the limiting edge 13 is limited inside the limiting slide groove 16 at the bottom of the inner rotating plate 12, and then the large wheel 2 is rotated to drive the inner rotating rod 3 to rotate, and the valve plate 14 is screwed up to open the valve port 8.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual valve that is easy to open and close, comprising a valve body (6), characterized in that: The upper end of the valve body (6) is fixedly provided with a valve internal thread seat (5), the internal thread of the valve internal thread seat (5) is connected to an external rotating rod (4), and one end of the external rotating rod (4) is fixedly provided with a valve plate mechanism (7), and the valve plate mechanism (7) comprises: A valve plate (14), wherein the interior of the valve plate (14) is hollow, corresponding valve holes (15) are provided on the upper and lower sides of the valve plate (14), and one end of the outer rotating rod (4) is fixedly connected to the valve plate (14); An inner rotating plate (12), the inner rotating plate (12) is rotatably arranged inside the valve plate (14), a fan-shaped limiting groove (16) is provided at the bottom of the inner rotating plate (12), a limiting edge (13) corresponding to the limiting groove (16) is fixedly provided at the bottom of the limiting groove (16), and a through hole (11) is provided on the surface of the inner rotating plate (12) corresponding to the valve hole (15); An inner rotating rod (3) is rotatably arranged inside the outer rotating rod (4), and one end of the inner rotating rod (3) passes through the valve plate (14) and is fixedly connected to the center of the inner rotating plate (12).

2. A manual valve that is easy to open and close according to claim 1, characterized in that: A small rotating wheel (1) is fixedly provided on the outer upper end of the inner rotating rod (3), and a large rotating wheel (2) is fixedly provided on the outer upper end of the outer rotating rod (4).

3. A manual valve that is easy to open and close according to claim 1, characterized in that: A water inlet (9) and a water outlet (10) are respectively provided on both sides of the valve body (6), and a valve port (8) is provided between the water inlet (9) and the water outlet (10) corresponding to the valve plate (14).

4. A manual valve that is easy to open and close according to claim 1, characterized in that: The valve internal thread seat (5) is provided with threads inside, and the valve internal thread seat (5) is threadedly connected to the external rotating rod (4).

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