JPH04105674U - reed valve device - Google Patents

Abstract

(57) [Summary] [Purpose] To form a smooth flow when the valve is opened in a reed valve device. [Configuration] Through hole 1 in reed valve body 13 and stopper 18
7 and 21 are opened, respectively. Therefore, the air 4 discharged from the valve port 11 is transferred to the through holes 17 and 21.
It flows smoothly without stagnation through the discharge path 1.
It flows out to the space above the stopper 18 at 3. In this way, the air 4 discharged from the valve port 11 flows smoothly through the through holes 17 and 21, so that the flow path resistance in the reed valve device 10 is reduced.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

TECHNICAL FIELD The present invention relates to a reed valve device, and in particular to a technology for reducing flow path resistance, for example, This invention relates to a device that is effective for use as a discharge valve of a swash plate type air compressor.

0002

[Conventional technology]

Conventional reed valve devices used in the discharge valve of swash plate air compressors A reed valve body that abuts to open and close and has a fixed end, and a valve on the reed valve body. A stock is placed and fixed on the opposite side of the opening, and regulates the position of the reed valve body when the valve is opened. When a pressure higher than the set value is applied to the valve opening, its own elastic force is applied. Therefore, the reed valve body that was blocking the valve opening bends toward the stopper, causing the valve opening to close. is configured to open.

0003

[Problem that the idea aims to solve]

However, in such a reed valve device, when the valve is opened, the air discharged from the valve port is After hitting the reed valve body, the water flows outward along the main surface of the reed valve body on the valve port side. Since the discharge flow will flow out to the main surface of the reed valve body and the valve opening, the discharge flow will become stagnant. There is a problem that it tends to accumulate and a smooth flow is not formed.

0004 The purpose of this invention is to create a reed valve that can form a smooth flow when the valve is opened. The goal is to provide equipment.

[0005]

[Means to solve the problem]

The reed valve device according to the present invention has a valve port and one side that is brought into contact with the valve port so as to open and close the valve port. The reed valve body has a fixed end, and the reed valve body has a fixed end located on the opposite side of the valve opening. and a stopper that regulates the position of the reed valve body when the valve is opened. In the valve device, A through hole is formed in the reed valve body and arranged on the outside of the seat portion relative to the valve port. At the same time, The stopper also has a through hole formed to face the through hole of the reed valve body. It is characterized by

[0006]

[Effect]

According to the above-mentioned means, when the valve is opened, the fluid flowing out from the valve port flows through the reed valve body through hole. Since it also flows outward from the stopper hole, there is a gap between the reed valve body and the valve port. The flow becomes smoother and flow path resistance is reduced.

[0007]

【Example】

Figure 1 is an exploded perspective view showing a reed valve device that is an embodiment of the present invention, and Figure 2 is an assembly thereof. FIG. 3 is a front sectional view showing the valve in the upright state, and FIG. 3 is a front sectional view showing the valve in the open state.

[0008] In this embodiment, the reed valve device 10 according to the present invention is, for example, an air compressor. The valve plate 1 is configured to be used as a discharge valve in a It is assembled into. The valve plate 1 has a pair of valve ports 11 as discharge valve ports. , are arranged side by side on the left and right (front, back, left, right, top and bottom are as shown in Figure 1), and are arranged side by side to connect the compression chamber 2 and the discharge chamber. They are each opened so as to communicate with exit route 3. This valve plate 1 A valve seat 12 is substantially formed on the opening edge of the valve port 11 on the main surface on the outlet path 3 side. There is.

[0009] The reed valve device 10 according to this embodiment includes a reed valve body that opens and closes the valve port 11, and a reed valve body that opens and closes the valve port 11. and a stopper for regulating the position of the reed valve body 13. A thin plate with elasticity such as phosphor-phosphor bronze or steel plate is used, and by press working, It is integrally molded into a substantially rectangular flat plate. Left end of reed valve body 13 in the longitudinal direction has a circular hole 14 for bolt insertion, and the other right end has a circular hole 14 for bolt insertion. A notch 15 is cut from the right end side so as to be longer in the longitudinal direction. Also By seating the valve seat 12 in the center of the reed valve body 13, the valve port 11 can be opened. The closing sheet portions 16 are arranged side by side on the left and right and are substantially formed respectively. ing. In this embodiment, the left and right ends of the reed valve body 13 are provided with transparent Holes 17, 17 are arranged on the outside of the left and right seat parts 16, 16, respectively, and form a circular shape. It is formed into a shape and opened.

0010 The stopper 18 is made of a rigid plate material such as an iron plate, and is generally referred to as the reed valve body 13. It is formed into an equal rectangular plate body, and bolts are inserted into both left and right ends of the stopper 18. Circular holes 19, 19 for use are respectively bored. There is a position in the center of the stopper 18. The position regulating portion 20 is integrally curved into an arch shape in the thickness direction. Book In the embodiment, left and right through holes 21, 21 are formed at both left and right ends of the stopper 18. The stopper through holes 21 and 21 are connected to the reed valve body through holes 17 and 17, respectively. are arranged and formed in a corresponding manner.

[0011] The reed valve body 13 has a valve port on the main surface of the valve plate 1 on the discharge path 3 side. 11, 11, and the stopper 18 is placed on top of the reed valve body 13. A pair of left and right bolts 22, 22 are inserted into the circular holes 19 and 14. , are inserted into the circular hole 19 and the notch 15, respectively, and are shaped into the valve plate 1. The reed valve body 13 and Stopper 18 is fixed to valve plate 1. When fixed, the button on the notch 15 side A spacer 24 is interposed between the valve plate 23 and the stopper 18 in the bolt 22. The reed valve body 13 is in a state where sliding on the notch 15 side is permitted. There is.

0012 Next, the effect will be explained. When the pressure acting on the valve port 11 as a discharge valve port is below the set value, the reed valve body 13 is shown in FIG. 1 due to its own elastic force and the pressure difference between the inside and outside of the valve port 11. When the seat portion 16 is seated on the valve seat 12, the valve port 11 is closed. It is in a state of In this state, the reed valve body 13 is attached to the valve plate 1. Since it has a flat plate shape along the top surface, it can be moved away from the arch-shaped position regulating part 20. It is in a state of

[0013] Next, when the pressure acting on the valve port 11 as a discharge valve port exceeds a set value, the The closed valve body 13 is bent by the acting force and pushed against the position regulating part 20 of the stopper 18. It is curved until it touches. The curvature of the reed valve body 13 depends on the elasticity and This is achieved by sliding the bolt 22 on the side of the notch 15. The reed valve body 13 When bent, the seat portion 16 separates from the valve seat 12, opening the valve port 11 and closing the valve. Air 4 in the compression chamber 2 is discharged into the discharge passage 3 through the port 11 .

[0014] Here, through holes 17 and 21 are formed in the reed valve body 13 and the stopper 18, respectively. In the case of a conventional reed valve device that is not opened, the air 4 discharged from the valve port 11 Since the water flows along the lower surface of the reed valve body 13, the reed valve body 13 It tends to stagnate at the bottom, and a smooth flow is not formed.

[0015] However, in this embodiment, the through hole 17 is provided in the reed valve body 13 and the stopper 18. and 21 are opened, so the air 4 discharged from the valve port 11 is It flows smoothly through the through holes 17 and 21 without stagnation, and enters the discharge path 3. This will flow out into the space above the stopper 18 in the holder. In this way, the book In the embodiment, the air 4 discharged from the valve port 11 passes through the through holes 17 and 21. Since the reed valve device 10 flows smoothly, the flow resistance in the reed valve device 10 is reduced. It turns out.

[0016] By the way, as in the conventional example, the air 4 discharged from the valve port 13 hits the reed valve body 13. As the flow creeps along the lower surface, the carbon Foreign matter 25 such as dust and other foreign matter may cause the hem of the reed valve body 13 and the valve plate to become curved. It adheres to and accumulates in the gap between it and the sheet 1.

[0017] However, in this embodiment, the air 4 discharged from the valve port 11 passes through the through hole 17 and In order to flow smoothly through the reed valve body 13 and the valve body 21, the curved hem of the reed valve body 13 and the valve Foreign matter 25 does not adhere to and accumulate in the gap with the plate 1.

[0018] It should be noted that the present invention is not limited to the above-described embodiments, and does not depart from the gist thereof. It goes without saying that various changes can be made within the range.

[0019] For example, in the above embodiment, the reed valve device is connected to the discharge valve of the air compressor. Although the present invention has been described with reference to the case where it is used, the present invention is not limited to this, and is applicable to swash plate type air compressors. Intake valves for lessors, discharge valves and suction valves in other fluid machines, and even Leads used as check valves and other valves installed in fluid circuits It can be applied to valve devices in general.

[0020]

[Effect of the idea]

As explained above, according to the present invention, a smooth flow is formed when the valve is opened. Therefore, it is possible to reduce flow path resistance and prevent foreign matter from accumulating. It is possible to prevent product build-up.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing a reed valve device that is an embodiment of the present invention.

FIG. 2 is a front sectional view showing the assembled state.

FIG. 3 is a front sectional view showing the valve in its open state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1...Valve plate, 2...Compression chamber, 3...Discharge path, 4...Air, 10...Reed valve device, 11...Valve port, 12...Valve seat, 1
3...Reed valve body, 14, 19...Circular hole for bolt insertion, 1
5... Notch for bolt insertion, 16... Seat part, 17... Lead valve body through hole, 18... Stopper, 20... Position regulating part, 21
...stopper through hole, 22...bolt, 23...female screw hole, 24
...Spacer, 25...Foreign object.

Claims (1)

[Scope of utility model registration request] 1. A valve port, a reed valve body that abuts to open and close the valve port and has one end fixed, and a reed valve body disposed and fixed on the side opposite to the valve port of the reed valve body, In the reed valve device, the reed valve device includes a stopper for regulating the position of the reed valve element during valve opening operation, wherein a through hole is formed in the reed valve element and arranged on the outside of the seat portion relative to the valve opening, and the stopper A reed valve device characterized in that a through hole is formed in the reed valve body so as to face the through hole of the reed valve body.