Splicing type double-valve pressing plate

Abstract

The utility model relates to the technical field of engine valves, and discloses a splicing type double-valve pressing plate which comprises an engine body, a piston is connected in the engine body in a sliding mode, a plurality of valve sliding bins are formed in the engine body, valve rods are connected in the valve sliding bins in a sliding mode, two air inlets are formed in the engine body, and air inlets are formed in the air inlets. Two air outlets are formed in the engine body and communicate with the corresponding air valve sliding bins correspondingly, acting force can be applied to the folded gasket through the acting force of the tension spring on the pressing piece, and at the moment, the edge contour of the folded gasket can be attached to the bottom wall and the inclined face of the inclined annular groove. In this way, the sealing performance of the valve pressing plate can be effectively guaranteed when the valve pressing plate is closed, and the situation that in a traditional mode, due to the fact that the valve is not provided with a special sealing assembly, the sealing performance is not tight when the valve is closed, gas leakage is caused, and the efficiency and performance of an engine are affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engine valves, in particular to a spliced ​​double-valve pressure plate. Background Art

[0002] A spliced ​​dual-valve pressure plate is a specially designed engine component, which is mainly used to optimize valve control and improve engine performance and efficiency.

[0003] In common engine structures, the opening and closing of valves are mostly controlled by cams. However, since most valves do not have dedicated sealing components, it is difficult for them to stably perform a sealing function under conditions where high sealing requirements are required, resulting in a certain degree of gas leakage, which in turn affects the efficiency and performance of the engine. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a spliced ​​double-valve pressure plate, which can solve the problem that most valves do not have dedicated sealing components, making it difficult to stably perform a sealing function under conditions with high sealing requirements, thereby causing a certain degree of gas leakage, thereby affecting the efficiency and performance of the engine.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a spliced ​​dual-valve pressure plate, comprising an engine body, a piston slidably connected to the engine body, a plurality of valve sliding chambers provided on the engine body, valve stems slidably connected to the valve sliding chambers, and two air inlets provided on the engine body;

[0006] The engine body is provided with two air outlets, which are respectively communicated with corresponding valve sliding chambers. The engine body is provided with a cam for controlling the opening and closing of the valves.

[0007] The engine body is provided with a valve sealing assembly, which is used to improve the sealing performance of the valve. The valve sealing assembly includes a valve pressure plate, a pressure plate, a damping column, an inclined annular groove, a tension spring and a blade valve sealing piece;

[0008] The valve pressure plate in the valve sealing assembly is fixedly connected to the lower end of the valve stem, and the plurality of blade valve sealing sheets are fixedly connected to the inclined surface of the valve pressure plate.

[0009] The plurality of blade valve sealing sheets are evenly arranged in a circular array, and the blade valve sealing sheets can buffer the closed valve pressure plate.

[0010] The lower end opening of the valve sliding chamber is fixedly connected with a sealing flange, and the inclined annular groove is arranged on the sealing flange.

[0011] The bottom wall of the inclined annular groove extends outward in an inclined shape, and a folded gasket is fixedly connected to the lower surface of the valve pressure plate.

[0012] The edge position of the folded gasket is matched with the inclined annular groove, the damping column is slidably connected in the valve stem, and the lower end of the damping column is fixedly connected with a sliding rod.

[0013] The pressing piece is fixedly connected to the lower end of the sliding rod, and the tension spring is sleeved on the outer surface of the sliding rod. The tension spring is used to drive the pressing piece to press upward, and the pressing piece is used to press the folded gasket into the inclined annular groove.

[0014] Compared with the prior art, the present invention provides a spliced ​​dual-valve pressure plate, which has the following beneficial effects:

[0015] The spliced ​​double-valve pressure plate applies force to the folded gasket through the pressure plate under the action of the tension spring. At this time, the edge contour of the folded gasket will fit with the bottom wall and the inclined surface of the inclined annular groove, which can effectively ensure the sealing performance of the valve pressure plate when closed, avoiding the traditional method in which the valve does not have a special sealing component, resulting in poor sealing when closed, thereby causing gas leakage and affecting the efficiency and performance of the engine.

[0016] The spliced ​​double valve pressure plate, through the edge positions of the multiple blade valve sealing pieces set, will first contact the opening chamfer at the lower end of the valve sliding chamber. At this time, the multiple blade valve sealing pieces will produce a certain deformation, so that the closing of the valve pressure plate can be effectively buffered, which avoids the problem that the traditional valve pressure plate has no buffering when closing, affecting its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the valve stem structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the blade valve seal of the utility model;

[0019] Figure 3 For this utility model Figure 1 Enlarged schematic diagram of point A in the middle.

[0020] In the figure: 1. Engine body; 2. Valve stem; 3. Valve pressure plate; 4. Folding gasket; 5. Pressure plate; 6. Sliding rod; 7. Damping column; 8. Sealing flange; 9. Inclined annular groove; 10. Tension spring; 11. Vane valve sealing plate; 12. Valve sliding chamber; 13. Air inlet; 14. Air outlet; 15. Cam; 16. Piston. DETAILED DESCRIPTION

[0021] The detailed embodiments of the utility model will be described in this part, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the written part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0023] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, above, below and the like are understood as including the number, and if the first and the second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0024] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0025] Please refer to Figure 1-3 The utility model provides a new technical scheme: a spliced double valve pressure plate, including engine body 1, piston 16 is slidably connected in engine body 1, a plurality of valve sliding bin 12 are set up on engine body 1, valve rod 2 are slidably connected in valve sliding bin 12, two air inlets 13 are set up on engine body 1,

[0026] Two air outlets 14 are set up on engine body 1, two air outlets 14 are communicated with corresponding valve sliding bin 12 respectively, cam 15 for controlling the opening and closing of valve is set up on engine body 1;

[0027] Valve sealing assembly is set up on engine body 1, valve sealing assembly is used to improve the sealing property of valve, valve sealing assembly includes valve pressure plate 3, pressing piece 5, damping column 7, inclined annular groove 9, tension spring 10 and vane valve sealing piece 11;

[0028] Valve pressure plate 3 in valve sealing assembly is fixedly connected at the lower end of valve rod 2, and a plurality of vane valve sealing pieces 11 are fixedly connected on the inclined surface of valve pressure plate 3.

[0029] Furthermore, a plurality of vane valve sealing sheets 11 are evenly arranged in a circular array, and the vane valve sealing sheets 11 can buffer the closed valve pressure plate 3 .

[0030] Furthermore, the lower opening of the valve sliding chamber 12 is fixedly connected with a sealing flange 8 , and an inclined annular groove 9 is provided on the sealing flange 8 .

[0031] Furthermore, the bottom wall of the inclined annular groove 9 extends outward in an inclined shape, and a folded gasket 4 is fixedly connected to the lower surface of the valve pressure plate 3 .

[0032] Furthermore, the edge position of the folded gasket 4 is adapted to the inclined annular groove 9 , the damping column 7 is slidably connected in the valve stem 2 , and the lower end of the damping column 7 is fixedly connected to the sliding rod 6 .

[0033] Furthermore, the pressing plate 5 is fixedly connected to the lower end of the sliding rod 6, and the tension spring 10 is sleeved on the outer surface of the sliding rod 6. The tension spring 10 is used to drive the pressing plate 5 to press upward, and the pressing plate 5 is used to press the folded gasket 4 into the inclined annular groove 9.

[0034] Furthermore, when the cam 15 drives the valve stem 2 in the air outlet 14 and the air inlet 13 to move during use, the rising valve stem 2 drives the edge contour of the folded gasket 4 into the inclined annular groove 9 through the valve pressure plate 3, and the pressure plate 5 will be subjected to the force of the tension spring 10 to exert a force on the folded gasket 4. At this time, the edge contour of the folded gasket 4 will fit with the bottom wall and the inclined surface of the inclined annular groove 9, which can effectively ensure the sealing performance of the valve pressure plate 3 when closed, avoiding the traditional method in which the valve does not have a special sealing component, resulting in poor sealing when closed, thereby causing gas leakage and affecting the efficiency and performance of the engine.

[0035] Furthermore, the edge positions of the multiple blade valve sealing sheets 11 set at the same time will first contact the opening chamfer at the lower end of the valve sliding chamber 12. At this time, the multiple blade valve sealing sheets 11 will produce a certain deformation, so that the closing of the valve pressure plate 3 can be effectively buffered, which avoids the problem that the traditional valve pressure plate 3 has no buffering when closing, affecting its service life.

[0036] Working principle: When in use, when the cam 15 drives the valve stem 2 in the air outlet 14 and the air inlet 13 to move, the rising valve stem 2 drives the edge contour of the folded gasket 4 into the inclined annular groove 9 through the valve pressure plate 3, and the pressure plate 5 will be subjected to the force of the tension spring 10 to exert force on the folded gasket 4. At this time, the edge contour of the folded gasket 4 will fit with the bottom wall and the inclined surface of the inclined annular groove 9, which can effectively ensure the sealing performance of the valve pressure plate 3 when closing.

[0037] Furthermore, the edge positions of the multiple blade valve sealing pieces 11 set at the same time will first contact the opening chamfer at the lower end of the valve sliding chamber 12. At this time, the multiple blade valve sealing pieces 11 will produce a certain deformation, so that the closing of the valve pressure plate 3 can be effectively buffered.

[0038] 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 spliced ​​double valve pressure plate, characterized by: The invention comprises an engine body (1), a piston (16) is slidably connected in the engine body (1), a plurality of valve sliding chambers (12) are provided on the engine body (1), valve stems (2) are slidably connected in each of the valve sliding chambers (12), and two air inlets (13) are provided on the engine body (1); The engine body (1) is provided with two air outlets (14), the two air outlets (14) are respectively communicated with corresponding valve sliding chambers (12), and the engine body (1) is provided with a cam (15) for controlling the opening and closing of the valve; A valve sealing assembly is provided on the engine body (1), and the valve sealing assembly is used to improve the sealing performance of the valve. The valve sealing assembly includes a valve pressure plate (3), a pressure plate (5), a damping column (7), an inclined annular groove (9), a tension spring (10) and a vane valve sealing plate (11); The valve pressure plate (3) in the valve sealing assembly is fixedly connected to the lower end of the valve stem (2), and a plurality of blade valve sealing sheets (11) are fixedly connected to the inclined surface of the valve pressure plate (3).

2. The spliced ​​dual-valve pressure plate according to claim 1, characterized in that: The plurality of blade valve sealing sheets (11) are evenly arranged in a circumferential array, and the blade valve sealing sheets (11) can buffer the closed valve pressure plate (3).

3. The spliced ​​dual-valve pressure plate according to claim 1, characterized in that: The lower end opening of the valve sliding chamber (12) is fixedly connected to a sealing flange (8), and an inclined annular groove (9) is provided on the sealing flange (8).

4. The spliced ​​dual-valve pressure plate according to claim 3, characterized in that: The bottom wall of the inclined annular groove (9) extends outward in an inclined shape, and a folded gasket (4) is fixedly connected to the lower surface of the valve pressure plate (3).

5. The spliced ​​dual-valve pressure plate according to claim 4, characterized in that: The edge position of the folded gasket (4) is adapted to the inclined annular groove (9), the damping column (7) is slidably connected in the valve stem (2), and the lower end of the damping column (7) is fixedly connected to the sliding rod (6).

6. The spliced ​​dual-valve pressure plate according to claim 5, characterized in that: The pressing plate (5) is fixedly connected to the lower end of the sliding rod (6), and the tension spring (10) is sleeved on the outer surface of the sliding rod (6). The tension spring (10) is used to drive the pressing plate (5) to press upward, and the pressing plate (5) is used to press the folding gasket (4) into the inclined annular groove (9).

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