JPH0517283U - Float valve - Google Patents

Abstract

(57) [Summary] [Purpose] Eliminate breakage of the arm of a float valve in a float valve that lowers the valve body by raising the float to close the flow passage and raises the valve body by lowering the float to open the flow passage. .. [Structure] The float 1 has one end 51 rotatably attached to the valve body 4 and the other end 52 attached to the tips of two arms 5a, 5b attached to the float 1. The trunk 7 is passed between the two arms 5a and 5b, and the valve driving lever 8 has a fulcrum 8a at one end on the spindle 6, a fulcrum 8b at the other end on the trunk 7, and an intermediate fulcrum 8c on the valve 8c. The pedestals 9 of the body 4 are rotatably attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a float valve used for maintaining a constant liquid level in a liquid storage tank.

[0002]

[Prior Art]

 The float valve usually has a float attached to the tip of one arm. The float valve raises the valve body to close the flow passage, and the float lowers the lift valve body to open the flow passage.The float valve raises the valve body when the water level drops. Since it is necessary to overcome the water pressure and lower the float in order to make it work, a heavy float such as brass is used.

[0003]

[Problems to be solved by the device]

 With the conventional float valve, there was no problem when the float moved only up and down, but when force is applied from the side to the float in the water tank, the arm and the joint part of the lever that transmits the movement of the arm may wear. , Sometimes broken.

An object of the present invention is to provide a float valve in which an arm and a joint part of a lever for transmitting a motion of the arm are not worn or broken.

[0005]

[Means for Solving the Problems]

 According to the present invention, when the float 1 is raised, the valve body 2 is lowered to close the flow passage 3, and when the float 1 is lowered, the valve body 2 is raised and the flow passage 3 is opened. It is characterized by having two arms 5.

[0006]

[Action]

 Since the float is supported by two arms, it can withstand lateral loads. Therefore, breakage of the arm is eliminated and abnormal force is not applied to the joint, so wear is reduced.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to FIG. FIG. 1A is a sectional view of a float valve according to an embodiment of the present invention, and FIG. 1B is a plan view. The float valve body comprises a valve body 4 and a valve body 2 having a spindle 6. The float 1 has one end 51 rotatably attached to the valve body 4 and the other end 52 attached to the tips of the two arms 5 a and 5 b attached to the float 1. A trunk 7 is passed between the two arms 5a and 5b, and the valve driving lever 8 has a fulcrum 8a at one end on the spindle 6, a fulcrum 8b at the other end on the trunk 7, and an intermediate fulcrum 8c. Joints are attached to the mounts 9 of the valve body 4 so that they can rotate. The fulcrum point 8b may be directly jointed to the trunk 7, or may be jointed to a mounting stand erected on the trunk 7 as shown in the figure. The flow passage 3 is narrowed on the outlet side so as to be closed when the valve body 2 descends.

When the water level of the water storage tank drops, the float 1 lowers due to its own weight, the valve body 2 rises, the flow path 3 opens, and water flows into the water storage tank. When the water flows in, the float rises to move the arm 5 and the valve driving lever 8, lower the valve body 2 and close the flow path 3. The fulcrums 8a and 8c of the valve drive lever 8 draw an arcuate locus along with the vertical movement of the arm. Therefore, the shaft holes of these fulcrums must be elongated holes (not shown).

[0009]

[Effect of the device]

 According to the present invention, the arm for mounting the float is not broken, and the wear of the joint portion of the valve driving lever can be eliminated. The float valve of the present invention can be used not only as a water tank but also as a tank for storing other liquids.

[Brief description of drawings]

1 shows an embodiment of the present invention, (a) is a sectional view,
(B) is a plan view.

[Explanation of symbols]

 1 Float 2 Valve Body 3 Flow Path 4 Valve Body 5a, 5b Arm 6 Spindle 7 Spindle 8 Valve Drive Lever 8a, 8b, 8c Support Point

Claims (1)

[Scope of utility model registration request] 1. A float valve in which a valve body is lowered by raising a float to close a flow passage, and a valve body is raised by lowering a float to open a flow passage in a valve body, a valve body having a spindle, and one end. Is rotatably attached to the valve body and the other end is attached to the float 2
A book arm and a trunk spanned between the two arms,
A float valve including a spindle at one end, a trunk at the other end, and a valve drive lever attached at the middle to a fulcrum of a valve body, respectively.