Multifunctional integrated composite valve

Abstract

A multifunctional integrated composite valve is characterized in that a third valve body is arranged at the left end of a first valve body, and a check valve seat is fixedly arranged between the first valve body and the third valve body; the check valve plate is arranged in the first valve body and is rotationally arranged through a pin shaft; a connecting pipe is formed on the first valve body, the fourth valve body is installed on the connecting pipe, and an emptying channel communicated with the connecting pipe is formed. The valve cover is connected with the fourth valve body; the adjusting valve element is arranged in the fourth valve body. And the other end of the valve shaft extends out of the valve cover and is connected with a second operating part. The check valve, the cut-off valve and the emptying valve are combined into one valve, the check valve, the cut-off valve and the emptying valve have the three functions of check, cut-off and emptying at the same time, the structure is compact, the number of the valves on a pipeline system is reduced, stability and economical efficiency of the system are improved, the multifunctional performance is achieved, and different work requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a multifunctional integrated composite valve. Background Art

[0002] In order to adapt to different working requirements on the pipeline, multiple valves with different functions are usually installed on the pipeline, such as ball valves, check valves, etc.

[0003] However, the conventional practice is to simply connect several valves with different functions in series. Multiple valves and components are connected in series in the pipeline. Not only is the installation cumbersome and time-consuming, but multiple components also have cumulative dimensional errors during installation. There is a risk of water leakage after installation, resulting in unstable system operation and the need for subsequent maintenance, with high overall costs. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a multifunctional integrated composite valve.

[0005] The technical solution adopted by the utility model is: a multifunctional integrated composite valve, comprising:

[0006] a first valve body formed with an intermediate passage;

[0007] A second valve body, which is disposed at the right end of the first valve body and is formed with an outlet passage;

[0008] A top cover, which is arranged at the upper end of the first valve body;

[0009] A ball body, which is arranged between the first valve body and the second valve body;

[0010] The valve seat is arranged on both sides of the ball and is in sealing cooperation with the surface of the ball;

[0011] A valve stem, one end of which is connected to the ball, and the other end of which extends out of the top cover and is connected to the first operating component;

[0012] A third valve body, which is disposed at the left end of the first valve body and is formed with an inlet passage;

[0013] A check valve seat, which is fixedly arranged between the first valve body and the third valve body;

[0014] A check valve plate, which is arranged in the middle channel of the first valve body and is rotatably arranged by a pin shaft and can be sealed with the check valve seat;

[0015] a fourth valve body, wherein the first valve body is formed with a connecting pipe connected to the intermediate channel, the fourth valve body is installed on the connecting pipe and is formed with a venting channel connected to the connecting pipe;

[0016] a valve cover connected to the fourth valve body;

[0017] A regulating valve core, which is arranged in the fourth valve body;

[0018] The valve shaft has one end connected to the regulating valve core and the other end extending out of the valve cover and connected to the second operating component.

[0019] The first valve body and the third valve body are correspondingly formed with inclined surfaces, and the first valve body and the third valve body are fastened and connected to the check valve seat at the inclined surfaces by bolts, and sealing gaskets are arranged between the end surfaces of the check valve seat at both ends and the first valve body and the third valve body.

[0020] An annular boss is integrally formed on the end surface of the check valve seat, and the check valve plate is arranged on the inner ring of the annular boss and connected to the annular boss via a pin shaft.

[0021] The check valve plate is provided with a positioning boss.

[0022] The connecting pipe and the first valve body are welded to form an integral structure.

[0023] The connecting pipe is T-shaped and is provided with a locking nut; the fourth valve body is threadedly connected to the locking nut.

[0024] A sealing gasket is provided between the connecting pipe and the fourth valve body.

[0025] The valve shaft is threadedly connected to the valve cover.

[0026] The beneficial effect of the utility model is that: by adopting the above scheme, three valves of different functional types, namely, check valve, cut-off valve and venting valve, are combined into one valve, so that it has the three functions of check valve, cut-off valve and venting at the same time. It not only has a compact structure, reduces the number of valves on the pipeline system, improves system stability and economy, but also realizes multifunctional performance and can be used for different work needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a multifunctional integrated composite valve according to an embodiment of the utility model. DETAILED DESCRIPTION

[0028] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0029] As shown in the figure, a multifunctional integrated composite valve includes a first valve body 2, a second valve body 3, a top cover 4, a ball 5, a valve seat 6, a valve stem 7, a third valve body 8, a check valve seat 9, a check valve plate 10, a fourth valve body 12, a valve cover 14, a regulating valve core 15, and a valve shaft 16.

[0030] The first valve body 2 is formed with a middle channel 21, the second valve body 3 is arranged at the right end of the first valve body 2 and is formed with an outlet channel 31, the top cover 4 is arranged at the upper end of the first valve body 2, the ball 5 is arranged between the first valve body 2 and the second valve body 3, the valve seat 6 is arranged on both sides of the ball 5 and is sealed with the surface of the ball 5, one end of the valve stem 7 is connected to the ball 5, and the other end extends out of the top cover 4 and is connected to the first operating component. The valve stem 7 and the top cover 4 are sealed to ensure reliable sealing, and the first operating component includes a hand wheel and a worm gear box.

[0031] The first valve body 2, the second valve body 3, the top cover 4, the ball 5, the valve seat 6, and the valve stem 7 constitute the basic structure of the ball valve. By rotating the hand wheel, the valve stem 7 can be driven to rotate after being reduced by the worm gear box, and the valve stem 7 can drive the ball 5, thereby realizing the opening and closing of the ball valve and realizing the cut-off function.

[0032] The third valve body 8 is arranged at the left end of the first valve body 2 and forms an inlet channel 81. The check valve seat 9 is fixedly arranged between the first valve body 2 and the third valve body 8. The check valve plate 10 is arranged in the middle channel 21 of the first valve body 2 and is rotatably arranged by the pin shaft 11, and can be sealed with the check valve seat 9.

[0033] Among them, the first valve body 2 and the third valve body 8 are correspondingly formed with inclined surfaces, and the first valve body 2 and the third valve body 8 are fastened and connected to the check valve seat 9 by bolts at the inclined surfaces, and sealing gaskets 17 are provided between the end surfaces of the check valve seat 9 and the first valve body 2 and the third valve body 8 to ensure reliable sealing.

[0034] An annular boss 91 is integrally formed on the end surface of the check valve seat 9, and the check valve plate 10 is arranged on the inner ring of the annular boss 91 and is connected to the annular boss 91 through a pin shaft 11. During assembly, the check valve seat 9, the check valve plate 10 and the pin shaft 11 can be assembled into an integrated module, and then the entire module is installed between the first valve body 2 and the third valve body 8, which makes assembly more convenient.

[0035] The third valve body 8, the check valve seat 9, the check valve plate 10, the pin 11 and the first valve body 2 constitute the basic structure of the check valve. When the medium flows in the forward direction, the medium can push the check valve plate 10 to open. When the medium flows in the reverse direction, the medium can push the check valve plate 10 to press the check valve seat 9 to ensure reliable sealing and prevent backflow. The check function can be realized, and the check valve and the ball valve share the first valve body, which is more compact and reduces costs. In addition, the check valve plate 10 is provided with a positioning boss 101. When the positive medium flows to open the valve, the positioning boss 101 on the check valve plate 10 can contact and limit with the inner wall of the first valve body 2, so that the check valve plate 10 remains horizontal and maintains the maximum opening range.

[0036] A connecting pipe 13 communicating with the intermediate channel 21 is formed on the first valve body 2 , wherein the connecting pipe 13 and the first valve body 2 are welded to form an integral structure, and the connecting pipe 13 is T-shaped, and a locking nut 18 is provided on the connecting pipe 13 .

[0037] The fourth valve body 12 is mounted on the connecting pipe 13 and is formed with a venting passage 121 communicating with the connecting pipe 13. The fourth valve body 12 is fixed and locked with the connecting pipe 13 by a locking nut 18, and a sealing gasket 19 is provided between the connecting pipe 13 and the fourth valve body 12 to ensure reliable connection of the brackets of the two.

[0038] The valve cover 14 is connected to the fourth valve body 12, the regulating valve core 15 is in a conical structure and is arranged in the fourth valve body 12, one end of the valve shaft 16 is connected to the regulating valve core 15, and the other end extends out of the valve cover 14 and is connected to the second operating component. A sealing material is used between the valve shaft 16 and the valve cover 14 to ensure reliable sealing, the second operating component is a hand wheel, and the valve shaft 16 is threadedly connected to the valve cover 14.

[0039] The fourth valve body 12, the connecting pipe 13, the valve cover 14, the regulating valve core 15, and the valve shaft 16 constitute the basic structure of the vent valve. By rotating the hand wheel, the valve shaft can move linearly along the valve cover 14, thereby driving the regulating valve core 15 to move, thereby achieving the emptying of gas or liquid and realizing the venting function. Moreover, the vent valve is directly connected to the first valve body through the connecting pipe, so the structure is more compact and the cost is reduced.

[0040] By adopting the above scheme, three different types of valves, namely, check valve, cut-off valve and vent valve, are combined into one valve, so that it has the three functions of check valve, cut-off valve and vent valve at the same time. It not only has a compact structure and reduces the number of valves on the pipeline system, improves system stability and economy, but also realizes multifunctional performance and can be used for different working requirements.

[0041] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0043] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept of the utility model is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent right.

Claims

1. A multifunctional integrated composite valve, comprising: A first valve body (2) formed with an intermediate passage (21); A second valve body (3) is arranged at the right end of the first valve body (2) and is formed with an outlet passage (31); A top cover (4) arranged at the upper end of the first valve body (2); A ball (5) disposed between the first valve body (2) and the second valve body (3); Valve seats (6) are arranged on both sides of the sphere (5) and are in sealing cooperation with the surface of the sphere (5); A valve stem (7), one end of which is connected to the ball (5), and the other end of which extends out of the top cover (4) and is connected to the first operating component; It is characterized by further comprising: a third valve body (8), which is arranged at the left end of the first valve body (2) and is formed with an inlet passage (81); A check valve seat (9) fixedly arranged between the first valve body (2) and the third valve body (8); A check valve plate (10) is arranged in the middle passage (21) of the first valve body (2), is rotatably arranged via a pin shaft (11), and can be sealed with the check valve seat (9); a fourth valve body (12), wherein the first valve body (2) is formed with a connecting pipe (13) connected to the intermediate channel (21), the fourth valve body (12) is mounted on the connecting pipe (13) and is formed with a venting channel (121) connected to the connecting pipe (13); A valve cover (14) connected to the fourth valve body (12); A regulating valve core (15) disposed in the fourth valve body (12); A valve shaft (16) has one end connected to the regulating valve core (15) and the other end extending out of the valve cover (14) and connected to the second operating component.

2. The multifunctional integrated composite valve according to claim 1, characterized in that: The first valve body (2) and the third valve body (8) are formed with inclined surfaces correspondingly, the first valve body (2) and the third valve body (8) are fastened and connected at the inclined surfaces by bolts and a check valve seat (9), and sealing gaskets (17) are provided between end surfaces of both ends of the check valve seat (9) and the first valve body (2) and the third valve body (8).

3. The multifunctional integrated composite valve according to claim 1, characterized in that: An annular boss (91) is integrally formed on the end surface of the check valve seat (9), and the check valve plate (10) is arranged on the inner ring of the annular boss (91) and connected to the annular boss (91) via a pin shaft (11).

4. The multifunctional integrated composite valve according to claim 1, characterized in that: The check valve plate (10) is provided with a positioning boss (101).

5. The multifunctional integrated composite valve according to claim 1, characterized in that: The connecting pipe (13) and the first valve body (2) are welded to form an integral structure.

6. The multifunctional integrated composite valve according to claim 1, characterized in that: The connecting pipe (13) is T-shaped, and a locking nut (18) is provided on the connecting pipe (13); the fourth valve body (12) is threadedly connected to the locking nut (18).

7. The multifunctional integrated composite valve according to claim 6, characterized in that: A sealing gasket (19) is provided between the connecting pipe (13) and the fourth valve body (12).

8. The multifunctional integrated composite valve according to claim 1, characterized in that: The valve shaft (16) is threadedly connected to the valve cover (14).

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