CN206007818U - A kind of fluid pressure type lifesaving expander - Google Patents

Abstract

A kind of fluid pressure type lifesaving of the utility model expander, by shell, large tank, small oil tank, large piston, valve piston, shoe cream room, check valve, oil return valve, tension arm, tension arm hinge, the compositions such as power arm. the course of work is, when use, the power arm front end of expander is inserted between two bars of window fence, a hand-held firmly expander, another hand firmly promotes forward push rod, push-and-pull valve piston push rod back and forth, constantly hydraulic oil is pressed into large tank, in large tank, large piston is under the pressure-acting of hydraulic oil, promoting large piston mandril travels forward. and push rod extruding power arm is pushed open to both sides, power arm and tension arm are an entirety, therefore, drive tension arm opens. and the tension arm opening gradually struts window fence larger space to both sides, allow people bore over, leave scene of fire. in the utility model, use hydraulic pressure and the dual laborsaving mode of machinery to increase tension arm and open power, the mode that adopts valve piston to seesaw, have easy to operate, labour-saving feature.

Description

A kind of fluid pressure type lifesaving expander

Technical field

The utility model relates to a kind of fluid pressure type lifesaving appliance, is specifically related to a kind of fluid pressure type lifesaving expander.

Background technology

Modern's inhabitation condition is become better and better, and people are for antitheft, usually at oneself window etc., fence type is installed anti-theft device. although such device can play anti-theft function, but serve unfavorable factor also to resident family oneself band, ratio as, in the time that fire occurs, if when gateway can not be walked, window is also shut by anti-theft fence, and the anti-theft device of fence type is used common instrument cannot be opened, if can not leave in time dangerous on-the-spot, danger close. a kind of hydraulic pressure of the utility model formula lifesaving expander, can address this problem well, this expander can be removed iron bar in a short period of time, allow certainly oneself is able to leave very soon dangerous on-the-spot.

Summary of the invention

In order to solve problems, a kind of fluid pressure type lifesaving of the utility model expander, adopt hydraulic pressure labor-saving device, fine solved this problem. this fluid pressure type lifesaving expander, by shell, large tank, small oil tank, large piston, valve piston, oil storage chamber, check valve, oil return valve, tension arm, tension arm hinge, the compositions such as power arm. described shell front end is fixed with tension arm hinge axle, described tension arm hinge axis is worn together two tension arms to form tension arm hinge, fixing on described tension arm hinge axis there is tension arm return torsion spring, in described large tank, be placed with large piston, one end of large piston is connected with large piston mandril, large piston push rod and power arm contact, in the time that large piston forward moves, can push power arm open moves to both sides, drive tension arm is opened to open. described large tank body lower end is provided with oil inlet passage, side, described oil inlet passage middle part is provided with oil return valve, under described oil inlet passage portion is connected with small oil tank body, the bottom sides of described small oil tank body is provided with in line check valve, bottom device has oil outlet one-way valve, institute state and in small oil tank, be provided with valve piston, valve piston one end is connected with small piston rod. and small piston rod one end is connected with driving handle. described in the outside of small oil tank body and the inside of shell form shoe cream room, the lower end of described shoe cream room is provided with shoe cream room piston, described oil storage the other end of chamber piston is connected with shoe cream room piston pressure spring, the other end of spring is connected with bolt of cover, described end cap spiral shell on bolt, be drilled with passage.

A kind of fluid pressure type lifesaving of the utility model expander, the course of work is, when use by the power arm front end of expander insert between two bars of window fence, a hand-held firmly expander, another holds pusher grip, firmly promote forward push rod, and push-and-pull valve piston push rod back and forth, as hand-held inflator is inflated, constantly hydraulic oil is pressed into large tank, large in large tank piston is under the pressure-acting of hydraulic oil, promoting large piston mandril travels forward. and large piston mandril extruding power arm pushes away to both sides open, power arm and tension arm are an entirety, therefore, drive tension arm opens. and the tension arm opening gradually can be by window fence two bars strut to both sides. when promoting when valve piston, hydraulic oil in small oil tank is compressed into large tank through oil outlet one-way valve. returns while drawing valve piston, hydraulic oil in shoe cream room is through in line check valve inspiration small oil tank. in the time of needs return, unclamp oil return valve bolt, hydraulic oil in large tank is under the effect of large piston return spring, push back shoe cream room. a kind of hydraulic pressure of the utility model formula lifesaving expander, it is a work-saving device, can produce 800 kilograms of above support forces, be enough between two bars of window fence strut larger space, allow people bore over, escape the inferno. a kind of fluid pressure type lifesaving of the utility model expander, all right be used in traffic rescue site, can strut with it arrangements for automotive doors of distortion etc.

Its laborsaving principle is as follows: in the time that end user uses hand propelled valve piston push rod, active force is added to hydraulic pressure by valve piston on oil, because the area of valve piston is less, under certain power effect, the pressure producing is larger, such pressure passes through hydraulic pressure oil enters large tank and is added on large oily piston, because the area of large piston is larger, the area that is multiplied by large piston with this pressure just It is the motive force obtained on big piston, in the present invention, the diameter of big piston is 10 times of valve piston diameter or so, its big piston area be exactly 100 times of left and right of valve piston area. therefore, the power that obtains on large piston is exactly 100 times of valve piston power. when greatly when piston moves piston rod reach with larger trying hard to recommend, the front end of piston rod is pushed expander power arm open and is moved to both sides, due to moving the angle of the arm of force and central axis is less, according to mechanics principle, this structure has formed a kind of mechanical labor-saving structure, power arm obtains to the tension force to both sides, be greater than piston rod thrust forward, tension arm just can obtain larger power .If user exists like this on valve piston, apply the power of 10 kilograms, so, just can obtain at the front end of tension arm the power of opening of approximately 1000 kilograms, like this large power is enough to common window fence to strut to both sides.

A kind of fluid pressure type lifesaving of the utility model expander, innovative point is: use hydraulic labor saving and mechanical laborsaving dual mode to increase tension arm and open power, the mode that adopts valve piston to seesaw is pressurizeed, and makes operation easily.

Brief description of the drawings

Fig. 1 is the overall structure schematic diagram of a kind of fluid pressure type lifesaving of the utility model expander.

Fig. 2 is the tension arm structural representation of a kind of fluid pressure type lifesaving of the utility model expander.

Fig. 3 is the partial structurtes enlarged diagram of a kind of fluid pressure type lifesaving of the utility model expander.

Detailed description of the invention

Below in conjunction with accompanying drawing, a kind of fluid pressure type lifesaving of the utility model expander is described further, as Fig. 1, Fig. 2, figure shown in 3, a kind of fluid pressure type lifesaving of the utility model expander, for lifesaving appliance in emergency circumstances, its structure is by shell 6, large tank 8, small oil tank 13, large piston 7, valve piston 14, shoe cream room 15, in line check valve 12, oil outlet one-way valve 11, oil return valve 9, tension arm 1, tension arm hinge 2, power arm 3 compositions such as grade. described shell 6 front ends are fixed with tension arm hinge axis 2, described tension arm Two tension arms 1 are worn together to form tension arm hinge by hinge axis 2, be fixed with tension arm and return on the tension arm hinge axis 2 Position torsion spring 25, is placed with big piston 7 in the large tank, one end of big piston 7 is connected with big piston mandril 4, big piston mandril 4 Contact with tension arm 1, when big piston 7 is moved forward, power arm 3 can be pushed open and moved to both sides, drive tension arm 1 Open.8 lower end of the large tank is provided with oil inlet passage 26, and 26 middle part side of the oil inlet passage is provided with oil return valve 9, and the oil-feed is led to 26 bottom of road is connected with small oil tank body 21, and the bottom sides of the small oil tank body 21 are provided with line check valve 12, and bottom device has Oil outlet one-way valve 11, is provided with valve piston 14 in the small oil tank 13, and 14 one end of valve piston is connected with small piston rod 19.Small piston rod 19 one end are connected with driving handle 20.The outside of the small oil tank body 21 and shell 6 are internally formed shoe cream room 15, the oil storage The lower end in chamber 15 is provided with shoe cream room piston 16, 17 phase of the other end of the shoe cream room piston 16 and shoe cream room piston pressure spring Even, the other end of spring is connected with bolt of cover 18, is drilled with passage on the bolt of cover 18.

The present embodiment course of work during use is inserted 3 front end of power arm of expander between two bars of window fence, Pusher grip 20 held by one hand-held firmly expander, another hand, firmly promotes forward push rod, and push-and-pull valve piston 14 is pushed away back and forth Bar, when valve piston 14 is promoted, the hydraulic oil in small oil tank 13 is pressed in large tank 8 through oil outlet one-way valve 11.Pull back little work When filling in 14, the hydraulic oil in shoe cream room 15 is in 12 inspiration small oil tank 13 of in line check valve.As hand-held inflator is inflated, Hydraulic oil is pressed into large tank 8 constantly, big piston 7 promotes big piston mandril under the pressure effect of hydraulic oil in large tank 8 4 travel forward.The big extruding of piston mandril 4 power arm 3 is pushed open to both sides, and power arm 3 and tension arm 1 are an entirety, therefore, band Dynamic tension arm 1 opens.Two bars of window fence can be strutted by the tension arm 1 for gradually opening to both sides.When needing return, unclamp back Fuel tap bolt, the hydraulic oil in large tank 8 are pressed back into shoe cream room 15 in the presence of big piston return spring 5.The utility model A kind of fluid pressure type lifesaving expander, is a work-saving device, can produce more than 800 kilograms of support force, it is sufficient to by window fence Larger space being strutted between two bars, allowing people is drill-through to go, speed away scene of fire.

Its laborsaving principle is as follows：When using people with hand propelled small piston rod 19, active force is added to liquid by valve piston 14 In force feed, as the area of valve piston 14 is less, under certain power effect, the pressure of generation is larger, and such pressure passes through Hydraulic oil enters large tank 8 and is added in big oily piston 7, as the area of big piston 7 is larger, is multiplied by big piston 7 with this pressure Area be exactly the motive force obtained on big piston 7, in the present invention, the diameter of big piston 7 is 10 times of 14 diameter of valve piston Left and right, the area of its big piston 7 is exactly 100 times of 14 area of valve piston or so.Therefore, the power for obtaining on big piston 7 is exactly little 100 times of 14 power of piston.When big piston 7 with larger push dynamic big piston mandril 4 and move forward when, the front end of big piston mandril 4 pushes away Open expander power arm 3 to both sides move, due to the angle of power arm 3 and central axis less, according to mechanics principle, this knot It has been configured to a kind of mechanical labor-saving structure, the tension force to both sides that power arm 3 is obtained, more than the thrust forward of big piston mandril 4, So tension arm 1 can be obtained by larger power.If user is applied with 10 kilograms of power on valve piston 14, then, just About 1000 kilograms of opening force can be obtained in the front end of tension arm 1, so big power is enough to common window fence to both sides Strut.

Claims (2)

1. a kind of fluid pressure type lifesaving expander of the utility model, for lifesaving appliance in emergency circumstances, structure is by shell（6）, Large tank（8）, small oil tank（13）, big piston（7）, valve piston（14）, shoe cream room（15）, in line check valve（12）, fuel-displaced unidirectional Valve（11）, oil return valve（9）, tension arm（1）, tension arm hinge（2）, power arm（3）Deng composition；It is characterized in that：The shell（6） It is fixedly arranged at the front end with tension arm hinge axis（2）, the tension arm hinge axis（2）By two tension arms（1）It is worn together to form tension force Arm hinge, the tension arm hinge axis（2）On be fixed with tension arm return torsion spring（25）, the large tank（8）Inside it is placed with big Piston（7）, big piston（7）One end and big piston mandril（4）It is connected, big piston mandril（4）And tension arm（1）Contact, when Big piston（7）During forward movement, power arm can be pushed open（3）Move to both sides, drive tension arm（1）Open；The large tank （8）Lower end is provided with oil inlet passage（26）, the oil inlet passage（26）Middle part side is provided with oil return valve（9）, the oil inlet passage （26）Bottom and small oil tank body（21）It is connected, the small oil tank body（21）Bottom sides be provided with line check valve（12）, bottom Device has oil outlet one-way valve（11）, the small oil tank（13）Valve piston is inside provided with（14）, valve piston（14）One end and small piston rod （19）It is connected, small piston rod（19）One end and driving handle（20）It is connected；The small oil tank body（21）Outside and shell（6）'s It is internally formed shoe cream room（15）, the shoe cream room（15）Lower end be provided with shoe cream room piston（16）, the shoe cream room piston（16） The other end and shoe cream room piston pressure spring（17）It is connected, the other end and bolt of cover of spring（18）It is connected, the end cap Bolt（18）On be drilled with passage.

2. a kind of fluid pressure type lifesaving expander of the utility model, is characterized in that：With hydraulic labor saving and mechanical laborsaving dual mode Increase tension arm（1）Opening force, using valve piston（14）The mode for moving forward and backward is pressurizeed, easy to operate.