Engine pressure reducing valve

Abstract

The utility model discloses an engine pressure reducing valve which comprises a protective frame, a sealing cylinder, a pressure reducing valve body and a valve plate, an air inlet pipe and an exhaust pipe are arranged on the two sides of the pressure reducing valve body respectively, the sealing cylinder is arranged at the top of the pressure reducing valve body, a rotatable adjusting rod is arranged in the sealing cylinder, a sealing seat is arranged at the bottom end of the pressure reducing valve body, and the valve plate is arranged on the sealing seat. A valve plate is arranged in the pressure reducing valve body. The pressure reducing valve is provided with the pressure reducing valve body, the air inlet pipe and the exhaust pipe are arranged on the two sides of the pressure reducing valve body respectively, the pressure reducing valve body is conveniently connected with an engine through the air inlet pipe and the exhaust pipe, the sealing seat is arranged at the bottom of the pressure reducing valve body, the inner cavity of the pressure reducing valve is conveniently cleaned through the sealing seat, and use is convenient. The top of the pressure reducing valve body is fixed to the first flange plate through the second flange plate, so that the sealing cylinder is convenient to install, the protection frame is arranged on the outer side of the sealing cylinder, explosion-proof protection can be achieved, and the adjusting rod is arranged in the sealing cylinder.

Description

Technical Field

[0001] The utility model relates to the relevant field of engine pressure reducing valves, in particular to an engine pressure reducing valve. Background Art

[0002] Pressure reducing valve, also known as safety valve, is a valve that adjusts the inlet pressure to the preset outlet pressure through its own mechanical parts, and relies on the energy of the medium itself to automatically maintain a stable outlet pressure. Engines are divided into piston engines, ramjet engines, rocket engines, and turbine engines. Their working process is intake, compression, fuel injection, combustion, expansion work, and exhaust. The engine is applicable to both power generation devices and the entire machine including the power device. Its types include internal combustion engines, external combustion engines, gas turbines, electric motors, etc.

[0003] For example, the authorized patent with publication number CN208534558U (engine pressure reducing valve): includes a base frame and a sleeve rod; the sleeve rod is a hollow column with a hollow hole in the middle, the sleeve rod is inserted and connected to the base frame, and the lower end of the sleeve rod is provided with a mounting section; the pressure reducing rod is inserted into the hollow hole and the upper end protrudes from the sleeve rod, the pressure reducing rod includes a vent portion and a sealing portion arranged at the lower end of the vent portion and capable of blocking the lower end of the hollow hole, the radius of the vent portion is smaller than the hollow hole and forms a ventilated air-release gap with the hollow hole; the upper end of the pressure reducing rod is threadedly connected to the first nut, and a preload spring is arranged between the first nut and the base frame; the engine pressure reducing valve also includes a venting channel that connects the air-release gap to the outside and a driving device that can drive the pressure reducing rod to press down. This design has a simple structure, can effectively achieve pressure reduction, and can ensure the airtightness of the cylinder when not in operation;

[0004] The above-mentioned prior art is not comprehensive enough in terms of the installation method of the pressure reducing valve, and is unable to provide explosion-proof protection for the valve cylinder. The pressure reducing control is not convenient enough, the assembly of the pressure reducing valve and the engine is not convenient enough, the pressure reducing control efficiency is low, and the assembly and disassembly of the valve body as a whole is not convenient enough. Utility Model Content

[0005] The purpose of the utility model is to provide an engine pressure reducing valve to solve the problems proposed in the above-mentioned background technology that the installation method of the pressure reducing valve is not comprehensive enough, the valve barrel cannot be explosion-proof protected, the pressure reducing control is not convenient enough, the assembly of the pressure reducing valve and the engine is not convenient enough, the pressure reducing control efficiency is low, and the assembly and disassembly of the valve body as a whole is not convenient enough.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine pressure reducing valve, comprising a protective frame, a sealing cylinder, a pressure reducing valve body and a valve plate, an air intake pipe and an exhaust pipe are respectively arranged on both sides of the pressure reducing valve body, a sealing cylinder is arranged on the top of the pressure reducing valve body, a rotatable adjusting rod is arranged in the sealing cylinder, a sealing seat is arranged at the bottom end of the pressure reducing valve body, and a valve plate is arranged inside the pressure reducing valve body.

[0007] In a further embodiment, a baffle is provided at one end of the sealing cylinder, a protective frame is provided at the bottom of the baffle, and the protective frame protects the outside of the sealing cylinder.

[0008] In a further embodiment, the valve plate is connected to one end of the valve stem, and the other end of the valve stem is connected to the end of the regulating rod.

[0009] In a further embodiment, a first flange plate is provided at the bottom end of the protective frame, and the first flange plate is flange-fixed to a second flange plate at the top end of the pressure reducing valve body.

[0010] In a further embodiment, an adjusting handle is provided at one end of the adjusting rod, and the other end of the adjusting rod is connected to the valve stem.

[0011] In a further embodiment, the pressure reducing valve body is connected to the air inlet and air outlet ends of the piston chamber of the engine through an air inlet pipe and an air exhaust pipe respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a pressure reducing valve body, and an air intake pipe and an exhaust pipe are respectively provided on both sides of the pressure reducing valve body. The pressure reducing valve body is conveniently connected to the engine through the air intake pipe and the exhaust pipe, and a sealing seat is provided at the bottom of the pressure reducing valve body, through which the inner cavity of the pressure reducing valve is convenient to clean, and it is easy to use.

[0014] 2. The top of the pressure reducing valve body of the utility model is fixed to the first flange plate by the second flange plate, so that it is convenient to install the sealing cylinder. A protective frame is provided on the outside of the sealing cylinder to provide explosion-proof protection. An adjusting rod is provided inside the sealing cylinder, and the end of the adjusting rod is connected to the valve stem, and the valve stem is connected to the valve plate, so that the valve plate can be controlled to turn, which is convenient for opening and closing adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an engine pressure reducing valve of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the main body of the new pressure reducing valve of the present utility model;

[0017] Figure 3 This is a structural schematic diagram of the sealing cylinder of the utility model;

[0018] Figure 4 This is the front view of the protective frame of the utility model;

[0019] Figure 5 It is a structural schematic diagram of part A of the utility model.

[0020] In the figure: 1. adjusting handle; 2. adjusting rod; 3. protective frame; 4. sealing cylinder; 5. first flange plate; 6. pressure reducing valve body; 7. air inlet pipe; 8. exhaust pipe; 9. sealing seat; 10. baffle; 11. valve stem; 12. valve plate; 13. second flange plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-5 The utility model provides an embodiment: an engine pressure reducing valve, comprising a protective frame 3, a sealing cylinder 4, a pressure reducing valve body 6 and a valve plate 12, an air intake pipe 7 and an exhaust pipe 8 are respectively arranged on both sides of the pressure reducing valve body 6, the pressure reducing valve body 6 is respectively connected with the air intake and outlet ends of the piston chamber of the engine through the air intake pipe 7 and the exhaust pipe 8, a sealing cylinder 4 is arranged on the top of the pressure reducing valve body 6, a rotatable adjusting rod 2 is arranged in the sealing cylinder 4, a sealing seat 9 is arranged at the bottom end of the pressure reducing valve body 6, and a valve plate 12 is arranged inside the pressure reducing valve body 6; the pressure reducing valve is convenient for controlling the pressure reduction of the engine through the air intake pipe 7 and the exhaust pipe 8, the sealing cylinder 4 is used to seal the top of the pressure reducing valve body 6, the valve stem 11 is driven to rotate through the adjusting rod 2, and the valve stem 11 drives the valve plate 12 to rotate.

[0023] A baffle plate 10 is provided at one end of the sealing cylinder 4, and a protective frame 3 is provided at the bottom of the baffle plate 10, and the protective frame 3 is protected on the outside of the sealing cylinder 4. The baffle plate 10 facilitates the installation of the protective frame 3. A first flange plate 5 is provided at the bottom end of the protective frame 3. The first flange plate 5 is flange-fixed with a second flange plate 13 at the top of the pressure reducing valve body 6. The first flange plate 5 and the second flange plate 13 facilitate the assembly of the pressure reducing valve body 6 and the sealing cylinder 4.

[0024] The valve plate 12 is connected to one end of the valve stem 11, and the other end of the valve stem 11 is connected to the end of the adjusting rod 2. The valve stem 11 is driven to rotate by the adjusting rod 2. An adjusting handle 1 is provided at one end of the adjusting rod 2, and the other end of the adjusting rod 2 is connected to the valve stem 11. The adjusting handle 1 is used to facilitate manual control of the adjusting rod 2.

[0025] Working principle: When in use, the protective frame 3 is connected to the baffle 10 at the top of the sealing tube 4, so that the protective frame 3 can safely protect the outside of the sealing tube 4, and is conveniently connected to the end of the valve stem 11 through the adjusting rod 2. The adjusting handle 1 is used to manually control the rotation of the adjusting rod 2, so that the adjusting rod 2 manually controls the rotation of the valve stem 11, and the valve stem 11 controls the rotation of the valve plate 12 to adjust the inlet and outlet of the pressure reducing valve body 6, thereby adjusting the air pressure in the engine, so that it can control the decompression of the engine, and the sealing seat 9 is used to seal the bottom of the pressure reducing valve body 6.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An engine pressure reducing valve, comprising a protective frame (3), a sealing cylinder (4), a pressure reducing valve body (6) and a valve plate (12), characterized in that: An air inlet pipe (7) and an air outlet pipe (8) are respectively provided on both sides of the pressure reducing valve body (6); a sealing cylinder (4) is provided on the top of the pressure reducing valve body (6); a rotatable regulating rod (2) is provided inside the sealing cylinder (4); a sealing seat (9) is provided at the bottom end of the pressure reducing valve body (6); and a valve plate (12) is provided inside the pressure reducing valve body (6).

2. An engine pressure reducing valve according to claim 1, characterized in that: A baffle (10) is provided at one end of the sealing cylinder (4), a protective frame (3) is provided at the bottom of the baffle (10), and the protective frame (3) protects the outside of the sealing cylinder (4).

3. The engine pressure reducing valve according to claim 1, characterized in that: The valve plate (12) is connected to one end of the valve stem (11), and the other end of the valve stem (11) is connected to the end of the regulating rod (2).

4. An engine pressure reducing valve according to claim 2, characterized in that: A first flange plate (5) is provided at the bottom end of the protection frame (3), and the first flange plate (5) is flange-fixed to a second flange plate (13) at the top end of the pressure reducing valve body (6).

5. The engine pressure reducing valve according to claim 1, characterized in that: An adjusting handle (1) is provided at one end of the adjusting rod (2), and the other end of the adjusting rod (2) is connected to the valve stem (11).

6. The engine pressure reducing valve according to claim 1, characterized in that: The pressure reducing valve body (6) is connected to the air inlet and air outlet ends of the piston chamber of the engine respectively through an air inlet pipe (7) and an air outlet pipe (8).

Images