Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K31/00—Actuating devices; Operating means; Releasing devices
  • F16K31/44—Mechanical actuating means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
  • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
  • F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
  • F16K11/168—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only swings

Definitions

• the present invention relates to a hydraulic pipe outlet valve used for construction machines and industrial machines.
• a hydraulic pilot valve As a hydraulic pilot valve, a plurality of spools are automatically inserted into the valve body, and a lever that is swingably supported on the valve body is used as the hydraulic pilot valve.
• the operating lever is attached to the lever, and the operator operates the operating lever to move the lever, so that the operating lever is moved slightly. It is also known that the pilot pressure oil is supplied by pressing a single spool 0.
• Hydraulic pilot valves for traveling circuits are mounted on the floor under the driver's cab and operated by an operator sitting on a seat on the floor panel. Since the hydraulic pilot valve is operated via the lever, the operating lever is very long to make it easier to operate.
• the operating lever moves by itself due to the vibration of the vehicle body, etc., and the spool is pushed by the lever connected to the operating lever and the pilot Occasional fluid may be supplied o
• an object of the present invention is to provide a hydraulic pilot valve capable of solving the above-mentioned problem.
• a swing lever for sliding the spool is provided with an operation lever and arm for mounting the damper, and an arm for mounting the damper is provided.
• the valve body and the valve body are freely slidable in a state where the top part normally projects above the valve body.
• a hydraulic pilot valve including an operating lever connected to the lever, wherein the lever has a damper mounting arm, and further includes a damper mounting arm.
• a hydraulic pilot valve is provided, wherein a damper is connected between the arm for use and a stationary portion of the valve body.
• FIG. 1, FIG. 2, and FIG. 3 are a schematic front view, a schematic side view, and a schematic plan view, respectively, showing a first embodiment of the present invention
• FIG. FIG. 2 is a schematic perspective view of each component disassembled
• FIG. 5 is a schematic front view showing a second specific example of the present invention.
• reference numeral 1 denotes the valve body.
• a recessed portion 2 is formed on the upper surface of the valve body 1, and a pair (two pairs) of spools 3 is provided on each side of the recessed portion 2.
• each spool 3 is protruded upward from a plate 4 fixed to the upper surface of the valve body 1.
• the valve body 1 and the plate 4 constitute a hydraulic pilot valve fixing part.
• the plate 4 has a pair of support brackets 5, 5 and an intermediate bracket 6, which are integrally protruded from the plate 4 at an interval, and A notch window 7 is formed between the bracket 5 and the intermediate bracket 6 so as to open into the recess 2, and a pair of support brackets is provided.
• the center of the pair of levers 9 is provided on the shaft 8 in the longitudinal direction, and each of the levers 9 is mounted on the shaft 8. Longitudinal direction of both
• a substantially L-shaped damper mounting arm 10 is provided on the lower surface of the central portion in the longitudinal direction of each lever 9 whose end is in contact with the top of each of the spools 3.
• the damper mounting arm 10 is provided integrally with the damper mounting arm 10 so as to protrude from the notch window 7 and the recess 2 to the side of the valve body 1.
• a damper 11 is connected between the arm 10 and the side surface of the valve body 1.
• Operation levers 12 are mounted on the upper surface of the central portion in the longitudinal direction of the lever 9, respectively.
• the lever 9 swings around the axis 8, so that at least one spool is provided. Press down 3 to supply the pie mouth pressurized oil to the desired oil passage, and at the same time, the damper mounting arm 10 swings to extend and contract the damper 11 o
• the damper mounting arm 10 integrated with the lever 9 will move.
• the power of the damper mounting arm 10 is regulated by the damper 11 and the operation lever 12 can be prevented from moving freely.
• the damper arm 1 ⁇ is integrated with the lever 9, and the damper arm 1 ⁇ extends over the damper arm 1 ⁇ and the side of the valve body 1.
• the damper arm 1 ⁇ is integrated with the lever 9, and the damper arm 1 ⁇ extends over the damper arm 1 ⁇ and the side of the valve body 1.
• the pi-D In itself Damper :! 1 is mounted and the pilot valve is assembled.
• the damper 11 is assembled and the number of assembly steps is reduced, or the pilot valve can be mounted.
• the damper can be mounted, so that the mounting work is also simplified.
• the dang, ° — 11 may be connected to an arm 4 a provided integrally with the plate 4.
• the damper 11 can regulate the movement of the operation lever 12 without permission due to the vibration of the vehicle body and the like. Since the damper mounting arm 10 was provided and the damper 11 was mounted over the damper mounting arm 10 and the pilot valve fixing part, the parts were installed. The number of points can be reduced, the cost can be reduced, and the damper 11 can be assembled at the same time as the assembly of the hydraulic pilot valve, which simplifies the assembly work and reduces the force and hydraulic pressure. By mounting the pilot valve, the damper 11 can also be mounted, which simplifies the work of mounting the entire vehicle body.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Mechanically-Actuated Valves (AREA)
• Servomotors (AREA)
• Operation Control Of Excavators (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=11869081

Family Applications (1)

Country Status (2)

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Citations (2)

Family Cites Families (1)

• 1990
  • 1990-02-19 JP JP1472490U patent/JPH03105787U/ja active Pending
• 1991
  • 1991-02-19 WO PCT/JP1991/000211 patent/WO1991012453A1/ja not_active Ceased

Patent Citations (2)

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