JPH03111656U

JPH03111656U -

Info

Publication number: JPH03111656U
Application number: JP1941990U
Authority: JP
Priority date: 1990-03-01
Filing date: 1990-03-01
Publication date: 1991-11-15

Description

[Brief explanation of the drawing]

第１図〜第９図は本考案の実施例を示し、第１
図は多連弁の平面図、第２図、第３図は第４図の
線断面図、−線断面図、第３図Ａ，Ｂは１
部変形例の断面図、第４図は第１図の−線断
面図、第５図は横断面図、第６図は弁本体の断面
図、第７図は油圧回路図、第８図は小型パワーシ
ヨベルの平面図、第９図は各スプールと操作レバ
ーの連結を示す斜視図、第１０図、第１１図は従
来の小型パワーシヨベルの正面図、平面図、第１
２図は油圧回路図、第１３図は多連弁の平面図で
ある。３……車体、２３……座席、Ａ……多連弁、ａ
……スプール、ｂ……弁本体。 1 to 9 show embodiments of the present invention.
The figure is a plan view of the multiple valve, Figures 2 and 3 are cross-sectional views taken along the lines of Figure 4, and cross-sectional views taken along the - line, and Figures A and B are 1
FIG. 4 is a cross-sectional view taken along the line -- in FIG. 1, FIG. 5 is a cross-sectional view, FIG. 6 is a cross-sectional view of the valve body, FIG. 7 is a hydraulic circuit diagram, and FIG. 8 is a cross-sectional view of a modified example. A plan view of a small power shovel, FIG. 9 is a perspective view showing the connection between each spool and the operating lever, and FIGS. 10 and 11 are a front view, a top view, and a top view of a conventional small power shovel.
FIG. 2 is a hydraulic circuit diagram, and FIG. 13 is a plan view of the multiple valve. 3...Vehicle body, 23...Seat, A...Multiple valve, a
...Spool, b...Valve body.

Claims

[Scope of utility model registration claim] Seat 23 in vehicle body 3 of small power excavator
In a multiple valve that connects a plurality of valves that are arranged in front of the actuator and supply pressure oil to each actuator, the valve body b has a spool that connects and blocks the actuator port with the inflow port and the outflow port. a, and a pump port connected to the inflow port and a tank port connected to the outflow port are formed in the valve body b to form a valve, and the plurality of valves are connected so that each spool a is parallel. The multiple valve A is installed as a relief valve near the pump on the side of the vehicle body 3 that is separated from the valve body b, with its high pressure port opening to the pump discharge side and its low pressure port opening to the tank side, and the valve body b A pump piping connection port is formed by opening to the pump port on the same surface as the actuator piping connection port in , and a tank piping connection port is formed by opening to the tank port on the longitudinal side of spool a in valve body b. A multiple valve for small power shovels.