Orifice plate type variable air valve

Abstract

The utility model relates to the field of valves, in particular to a pore plate type variable air valve which comprises a valve plate, a fixing block is fixedly installed on the side face of the valve plate, a first rotating plate is rotatably installed at the top end of the fixing block, a second rotating plate is rotatably installed at the other end of the first rotating plate, and a plug pin fixing block is rotatably installed at the upper end of the second rotating plate. A plurality of limiting holes are formed in the surface of the plug pin fixing block from top to bottom, a pressing spring is inserted into the valve plate in a penetrating mode, and the pressing spring and the limiting holes are concentric. The utility model aims to provide a pore plate type variable air valve, which is mainly used for solving the problems that each air outlet on the existing pore plate valve corresponds to one air outlet cavity and one valve ball valve rod, the opening and closing of the corresponding air outlet and the air outlet volume are controlled by rotating the valve rod, but the whole valve body is complicated in structure and the air outlet volume is influenced when the number of the air outlets is large. Especially, the number of valve balls and valve rods of each air outlet is large, and unified control cannot be achieved.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to an orifice plate type variable air valve. Background Art

[0002] Valves are a common control device with various types. They are usually installed on pipes or containers and play an important role in opening and closing and regulating. In some engineering applications, there are a large number of pipes of the same type in the system, which require simultaneous opening and closing operations. If a corresponding valve is installed on each pipe, the number of valves will be huge, which is not conducive to operation and control, and the investment cost is high.

[0003] Usually, these pipes are small in size and have limited installation space, so it is not allowed to install valves separately. In addition, only the on-off function is required, and there is no specific requirement for the adjustment ability of the valve. However, a variable air valve with an orifice plate in the prior art has the following problems:

[0004] (1) Each air outlet on the existing orifice valve corresponds to an air outlet cavity and a valve ball and valve stem. The opening and closing of the corresponding air outlet and the air outlet volume are controlled by rotating the valve stem. However, when there are a large number of air outlets, the entire valve body structure will still be complicated. In particular, there are a large number of valve balls and valve stems for each air outlet, and unified control cannot be achieved. Utility Model Content

[0005] The utility model is intended to provide an orifice type variable air valve, which is mainly used to solve the problem that each air outlet on the existing orifice valve corresponds to an air outlet cavity and a valve ball and valve stem, and the opening and closing of the corresponding air outlet and the air outlet volume are controlled by rotating the valve stem. However, when the number of air outlets is large, the entire valve body structure will still be complicated, especially since each air outlet has a large number of valve balls and valve stems, and unified control cannot be achieved.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A orifice plate variable air valve comprises a valve plate, a fixed block is fixedly installed on the side of the valve plate, a first rotating plate is rotatably installed on the top of the fixed block, a second rotating plate is rotatably installed on the other end of the first rotating plate, a latch fixing block is rotatably installed on the upper end of the second rotating plate, a plurality of limiting holes are provided on the surface of the latch fixing block from top to bottom, a pressing spring is interspersed inside the valve plate and the pressing spring is concentric with the limiting hole, a limiting rod is fixedly installed on the top of the pressing spring and the limiting rod extends out of the limiting hole, a third rotating plate is rotatably installed on the top of the latch fixing block, a pushing block is rotatably installed on the other end of the third rotating plate and the pushing block is in an inverted T shape, a limiting slot is fixedly installed on the surface of the valve plate and the upper and lower sides of the lower end of the pushing block are fitted with the slot of the limiting slot, and a cover plate is fixedly installed on a section of the pushing block away from the fixed block.

[0008] The working principle and beneficial effects of the utility model:

[0009] 1. Working principle: When the air volume of the valve plate needs to be controlled, you only need to manually raise or lower the latch fixing block. When the latch fixing block moves, the connected rotating plate will be driven together. The rotating plate will drive the connected pushing block and the cover plate to work. When the cover plate blocks the required valve hole, you only need to insert the limit rod into the limit hole on the latch fixing block to achieve fixation.

[0010] 2. Beneficial effect: By changing the position of the latch fixing block, the rotatably installed pushing block is linked to push the cover plate fixed at the front end, so that the cover plate blocks the required valve hole, and then the limit rod is inserted into the limit hole to achieve fixation. The device has a simple structure and is detachable. When the device fails, it is convenient to replace parts on site, which is conducive to the maintenance and repair of the device.

[0011] Preferably, the bottom surface of the first rotating plate is mounted on the top of the fixed block and the top is mounted on the bottom surface of the second rotating plate. This design enables the connected parts to be better flush with the surface of the valve plate.

[0012] Preferably, the surface of one end of the third rotating plate is movably mounted on the bottom surface of the latch fixing block, and the bottom end of the other end is mounted on the surface of the pushing block. This design enables the connected parts to better fit the surface of the valve plate.

[0013] Preferably, the longer end of the push block is cut off along the surface of the limiting slot, the surface of the push block is rotatably connected to the second rotating plate and the third rotating plate, and the cut surface of the push block can prevent interference with the limiting slot.

[0014] Preferably, a valve hole is provided on a side of the valve plate away from the fixed block, and the cover plate is flush with the surface of the valve plate. The flushness of the cover plate with the surface of the valve plate can better block the valve hole on the valve plate.

[0015] Preferably, the diameter of the limiting rod is equal to or smaller than the limiting hole. If the diameter of the limiting rod is too large, it may be impossible to insert it tightly into the limiting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a orifice plate variable air valve of the utility model patent;

[0017] Figure 2 This is the front view of a orifice plate variable air valve of the utility model patent;

[0018] Figure 3 This is a three-dimensional structural diagram of a orifice plate variable air valve of the utility model patent;

[0019] Figure 4This is an enlarged view of the pressing spring of an orifice plate variable air valve of the utility model patent.

[0020] The figure marks in the drawings of the specification include: 1, valve plate; 2, fixed block; 3, first rotating plate; 4, second rotating plate; 5, latch fixing block; 6, third rotating plate; 7, push block; 8, limit slot; 9, cover plate; 10, limit rod; 11, pressing spring; 12, valve hole; 13, limit hole. DETAILED DESCRIPTION

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

[0022] like Figure 1-Figure 4 As shown, it includes a valve plate 1, a fixed block 2 is fixedly installed on the side of the valve plate 1, a first rotating plate 3 is rotatably installed on the top of the fixed block 2, a second rotating plate 4 is rotatably installed on the other end of the first rotating plate 3, a latch fixing block 5 is rotatably installed on the upper end of the second rotating plate 4, a plurality of limiting holes 13 are provided on the surface of the latch fixing block 5 from top to bottom, a pressing spring 11 is interspersed inside the valve plate 1 and the pressing spring 11 is concentric with the limiting hole 13, a limiting rod 10 is fixedly installed on the top of the pressing spring 11 and the limiting rod 10 extends out of the limiting hole 13, a third rotating plate 6 is rotatably installed on the top of the latch fixing block 5, a pushing block 7 is rotatably installed on the other end of the third rotating plate 6 and the pushing block 7 is in an inverted T shape, a limiting card slot 8 is fixedly installed on the surface of the valve plate 1 and the upper and lower sides of the lower end of the pushing block 7 are fitted with the grooves of the limiting card slot 8, and a section of the pushing block 7 away from the fixed block 2 is fixedly installed with a cover plate 9.

[0023] like Figure 1-Figure 4As shown, the bottom surface of the first rotating plate 3 is installed on the top of the fixed block 2 and the top is installed on the bottom surface of the second rotating plate 4. This design can make the connected parts fit the surface of the valve plate 1 better. The surface of one end of the third rotating plate 6 is movably installed on the bottom surface of the latch fixing block 5, and the bottom end of the other end is installed on the surface of the pushing block 7. This design can make the connected parts fit the surface of the valve plate 1 better. The long end of the pushing block 7 is cut along the surface of the limiting slot 8. The surface of the pushing block 7 is rotatably connected to the second rotating plate 4 and the third rotating plate 6. The cut surface of the pushing block 7 can prevent interference with the limiting slot 8. The valve plate 1 is provided with a valve hole 12 on the side away from the fixed block 2. The cover plate 9 is flush with the surface of the valve plate 1. The cover plate 9 is flush with the surface of the valve plate 1, which can better block the valve hole 12 on the valve plate 1. The diameter of the limiting rod 10 is equal to or smaller than the limiting hole 13. The diameter of the limiting rod 10 is too large or it cannot be tightly inserted into the limiting hole 13.

[0024] From the above, it can be seen that the specific implementation of the utility model is as follows:

[0025] When it is necessary to block individual holes 12 of the valve plate 1, first press the limiting rod 10 on the latch fixing block 5. After the limiting rod 10 is pressed, the fixation of the latch fixing block 5 is cancelled, and then the latch fixing block 5 is moved downward. When the latch fixing block 5 moves, the second rotating plate 4 and the third rotating plate 6 connected to the bottom surface of the latch fixing block 5 are pushed forward. When the second rotating plate 4 and the third rotating plate 6 are pushed, the pushing block 7 movably connected at the other end is pushed forward. When the pushing block 7 is pushed, the front cover plate 9 is pushed forward. When the cover plate 9 moves to the valve hole 12 that needs to be covered, release the pressed limiting rod 10. Because there is a pressing spring 11 at the bottom of the limiting rod 10, it automatically bounces upward and is inserted into the limiting hole 13 on the latch fixing block 5 to fix the latch fixing block 5. At this time, the blocking of part of the valve hole 12 is completed.

[0026] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An orifice plate variable air valve, comprising a valve plate (1), characterized in that: A fixing block (2) is fixedly mounted on the side of the valve plate (1), a first rotating plate (3) is rotatably mounted on the top of the fixing block (2), a second rotating plate (4) is rotatably mounted on the other end of the first rotating plate (3), a latch fixing block (5) is rotatably mounted on the upper end of the second rotating plate (4), a plurality of limiting holes (13) are provided on the surface of the latch fixing block (5) from top to bottom, a pressing spring (11) is inserted into the interior of the valve plate (1), and the pressing spring (11) is concentric with the limiting hole (13), and the pressing spring (11) is arranged to be fixed to the valve plate (1). ) is fixedly mounted on the top of the valve plate (1) and the limit rod (10) extends out of the limit hole (13); a third rotating plate (6) is rotatably mounted on the top of the latch fixing block (5); a push block (7) is rotatably mounted on the other end of the third rotating plate (6) and the push block (7) is in an inverted T-shape; a limit slot (8) is fixedly mounted on the surface of the valve plate (1) and the upper and lower sides of the lower end of the push block (7) are fitted with the slots of the limit slot (8); and a cover plate (9) is fixedly mounted on a section of the push block (7) away from the fixed block (2).

2. The orifice type variable air valve according to claim 1, characterized in that: The bottom surface of the first rotating plate (3) is mounted on the top end of the fixed block (2) and the top end is mounted on the bottom surface of the second rotating plate (4).

3. The orifice type variable air valve according to claim 1, characterized in that: The surface of one end of the third rotating plate (6) is movably mounted on the bottom surface of the latch fixing block (5), and the bottom end of the other end is mounted on the surface of the pushing block (7).

4. The orifice type variable air valve according to claim 1, characterized in that: The long end of the pushing block (7) is cut away along the surface of the limiting slot (8), and the surface of the pushing block (7) is rotatably connected to the second rotating plate (4) and the third rotating plate (6).

5. The orifice type variable air valve according to claim 1, characterized in that: A valve hole (12) is provided on a side of the valve plate (1) away from the fixed block (2), and the cover plate (9) is flush with the surface of the valve plate (1).

6. The orifice type variable air valve according to claim 1, characterized in that: The diameter of the limiting rod (10) is equal to or smaller than the limiting hole (13).

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