JPS6231779A - Automatic position adjusting valve - Google Patents

Abstract

PURPOSE:To permit the automatic adjustment even if a divergence exists in press-contact position by setting the inside diameter of a through-hole formed onto a valve operating piece larger than the diameter of the leg part of a valve piece. CONSTITUTION:A through-hole 31 having the center of a valve seat 12 as center is formed onto a valve operating piece 15, and the inside diameter of the through-hole is formed a little larger than the diameter of the leg part 32 of a valve piece 16 inserted into said through-hole. The length L passing through the through-hole 31 of the leg part 32 is made a little larger than the thickness of the part forming the through-hole 31 of the valve operating piece 15, permitting the free sliding of the valve piece 16. The press-contact and separation of the valve piece 16 for the valve seat 12 are carried out through the swing or sliding of the valve operating piece 15. Therefore, even if a little divergence exists in assembly, fine valve closing operation is permitted by allowing the valve piece 16 slides the leg part 32 in the sliding hole 31.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a valve in which the spherical surface of the valve body is pressed against the valve seat for sealing, and the invention relates to a valve in which the spherical surface of the valve body is pressed against the valve seat for sealing. If the misalignment occurs, the valve body will be automatically changed to i11! This relates to an automatic position adjustment valve that can be adjusted and aligned.

(Prior Art) A valve structure in which a valve body is pressed against a valve seat to form a seal is known, for example, as shown in FIG. is supported by holder b so that it does not pop out, and a spring d is applied to the valve body C from the back inside holder b, and holder b is
It is a counter-actuated type that moves in the direction of arrow #X)'i.

(Problems to be Solved by the Invention) In a counter-moving valve as illustrated in FIG. 6, if the centers of the valve seat and the valve body C are even slightly misaligned, the sealing performance will be poor. The same applies when the valve body C is held and swung by a lever or the like. Further, in the case of the type in which the valve body C is slid in the axial direction of the valve seat a as shown in FIG. 6, the holder b becomes large and it is often difficult to install the valve in a narrow space.

(Means for Solving the Problems) In view of the above, the present invention has been developed by attaching the valve body to a swingable or sliding valve actuating piece, and furthermore, even if there is a slight deviation in the pressure contact position with the valve seat, the present invention has been proposed. Specifically, a fixed annular valve seat, a swingable or slidable valve actuating piece,
The actuation piece includes a valve body whose legs are passed through holes provided in the actuating piece, and whose spherical surface is brought into pressure contact with the valve seat. The valve body is characterized in that the hole is mounted so as to be movable in the radial direction, and the valve body is biased to come into pressure contact with the valve seat.

(Example) An embodiment of the present invention will be described with reference to FIGS. 1-5.

FIG. 1 shows an example of the valve installation position of the present invention, in which the supply port pipe (3) is inserted into the end (2) of the upper end of the seven-wheel filler pipe (1). The replenishment port pipe (3) is tightly fitted and fixed to the end of the end portion (2), and a cap (4a) is attached to the vaginal opening (4) with the portion above the internal fitting portion serving as a fuel refill port (4).
is engaged and fitted by the inner circumferential protruding ring (5), and a reduced diameter opening (6) biased to one side is formed on the bottom surface of the internally fitted portion to the end opening (2). ), and attach the bracket (7) in a hanging manner to the bottom of the lower side of the bottom surface around the bracket (7).
8) is fitted with an opening/closing lid (9) that closes the diameter reducing opening (6) from below, and a spring (10) wrapped around the pongee (8) is applied to the opening/closing lid (9), and its spring elasticity closes the opening/closing opening (6). close.

A vaporized gas escape port (11) is opened inward from the fitting part of the supply pipe port (3) in the end port (2), and the bracket (7) is connected to the end port (2).
) and fix the vaporized gas guide W (13) on the outside of the gas escape port (11). Further, a valve operating piece (15) for joining the spherical open/close valve (16) to the valve seat (12) is fitted onto the shaft (14) of the bracket (7),
One pressure receiving piece (1) above the pongee (14) of the actuating piece (15)
7) is integrally provided and the spring (18) is wound around the shaft (14).
) on the valve actuation piece (15) and the on-off valve (16) on the valve seat (
12). The opening/closing lid (9) is equipped with a cam that rotates approximately 90 degrees to open the diameter reducing port (6) and pushes the pressure receiving piece (17) to pull the opening/closing valve (16) away from the valve seat (12) to cause the valve to open. (19) is provided.

The above-mentioned valve seat (12) corresponds to the annular valve seat of the present invention, the valve actuation piece (15) corresponds to the swingable or slidable valve actuation piece of the present invention, and the on-off valve corresponds to the annular valve seat of the present invention. This corresponds to the valve body of the present invention. Hereinafter, the on-off valve (16) will be described as a valve body (16).

Although the valve operating piece (15) is shown as rotating and swinging about the shaft (14), it can also be slid in the radial direction of the valve seat (12).

The valve actuation piece (15) is provided with a through hole (31) centered on the center of the valve seat (12), and the inner diameter of the through hole (31) is set to the diameter of the through hole (31).
31) is slightly larger than the diameter of the leg (32) of the valve body (16). A ring is fitted to the tip of the leg (32) protruding from the through hole (31), or an arbitrary fixing device such as a split pin is inserted to prevent the valve body (16) from being removed. ing. The length (L) of the leg ffl5 (32) that passes through the through hole (31) is made slightly larger than the thickness of the portion of the valve actuation piece (15) that forms the through hole (31), and To allow the valve body (16) to slide more freely. The valve body (16) is biased to press against the valve seat (12). Pressure contact (valve closing) and separation (valve opening) of the valve body (16) from the valve seat (12) are performed by rocking or sliding the valve actuating piece (15), which is convenient, so in reality Apply the spring (18) to the operating rod (15).

In this embodiment, there is no need to precisely match the center line of the valve seat (12) and the center of the valve body (16) during assembly, and even if there is some misalignment during assembly, the valve actuation piece ( 15), the valve body (16) slides on the leg (32) when changing from the open state shown in FIG. 3 to the closed state shown in FIG. The sliding motion moving within the hole (31) produces a precise valve opening action as shown in FIG. In order to facilitate the movement of the through hole (31) of the leg (32) of the valve body (16) in the radial direction, the length (L) of the through hole (31) of the leg (32) is If there is a little margin 9, the valve body (16) will allow the leg (32) to swing slightly within the sliding hole 31) to complete the tight seal shown in FIG. Further, as shown in FIG. 4, when the valve operating piece (15) closes, it is supported so that it is not parallel to the plane of the valve seat (12) at all, and the valve body (16) is not parallel to the plane of the valve seat (12). ) Even when the valve body (16) is not in close contact with the valve seat (12), the valve body (16) slides on the valve actuating piece (15) and presses the spherical part against the valve seat (12), as shown in Figure 5, so that the sealing action is completed. Make it.

Even when the valve actuator 15) is configured to move approximately parallel to the plane of the valve seat (12), the valve seat (12) and the valve body (1
It is not necessary to precisely match the valve closing stop position in 6).
Automatic movement of the valve body leg (32) within the through hole (31) as detailed in Aij. Complete the valve seal by adjusting 4.

(Operations and Effects of the Invention) Due to the above-described configuration and operation, the present invention has an automatic operation that aligns the spherical surface with the valve seat without having to precisely assemble the valve body to the valve actuating piece. At the same time, the position is automatically adjusted when the valve is closed, and has various effects such as easy manufacture, good alignment of the valve, and extremely high durability.

[Brief explanation of the drawing]

1 to 5 show embodiments of the present invention, FIG. 1 is a vertical sectional side view illustrating the valve mounting position of the present invention, FIG. 2 is an enlarged Ia sectional side view of the main part, and FIG. 3 is the IN ! An enlarged side view of the valve state; FIG. 4 is an enlarged longitudinal side view showing the middle of the valve closing operation;
FIG. 5 is an enlarged vertical side view showing valve alignment when the valve body is tilted, and FIG. 6 is a vertical side view showing an example of a conventional ball ft-device. (12) → Valve seat (15) → Valve actuation piece (16) → On-off valve (valve body) (31) → Through hole (32
)→Legs Diagram 2

Claims (1)

[Claims] Consisting of a fixed annular valve seat, a swingable or slidable valve actuation piece, and a valve body whose leg portion passes through a through hole provided in the actuation piece and presses a spherical surface against the valve seat, The inner diameter of the through hole is made larger than the diameter of the leg, the valve body is mounted within the through hole so as to be movable in the radial direction of the hole, and the valve body is biased to come into pressure contact with the valve seat. An automatic position adjustment valve characterized by: