CN2396020Y

CN2396020Y - Hand-rotating hydraulic horizontal jack

Info

Publication number: CN2396020Y
Application number: CN 99230088
Authority: CN
Inventors: 陈江
Original assignee: CHANGSHU CITY JACK FACTORY
Current assignee: CHANGSHU CITY JACK FACTORY
Priority date: 1999-11-25
Filing date: 1999-11-25
Publication date: 2000-09-13
Anticipated expiration: 2009-11-25

Abstract

The utility model relates to a hand-rotating hydraulic horizontal jack, which is composed of a tray, a wallboard, a cargo boom, an oil pump, an oil cylinder seat, an oil return valve rod, a pump body, a manual reciprocating mechanism of the oil pump, etc. The manual reciprocating mechanism of the oil pump comprises an operating handle, a press handle, a press handle seat, a pump core and a pump core pin seat. The operating handle is inserted into a socket of the press handle and the press handle is hinged with the press handle seat through a pin shaft. The press handle is fell on a platform of the oil cylinder seat. The pump body is screwed with the oil cylinder seat together after being penetrated through a shaft hole of the press handle seat and a center hole of the platform. One end of the pump core is inserted into the pump body and the pump core pin seat is arranged on the other end of the pump core. The other end of the pump core is fixed to the press handle by the pin shaft after the pin shaft is penetrated through the pump core pin seat and a through hole on the press handle. The utility model has the advantages of flexible operation, convenient operation, safety, etc.

Description

Press the rotatable hydraulic horizontal jack of hand

The utility model relates to a kind of hydraulic horizontal jack, and particularly a kind of rotatable hydraulic horizontal jack of hand of pressing belongs to bont.

Existing hydraulic horizontal jack, generally form by pallet, wallboard, crane arm, connecting rod, oil cylinder seat, oil return valve rod, the pump housing and the manual reciprocator of oil pump etc., wherein the manual reciprocator of oil pump by bar handle, press hand, pump core, pump core key seat and form, one end of pump core inserts in the pump housing, the other end is equipped with pump core key seat, bearing pin passes pump core key seat, press behind the hole on hand with the other end of pump core with press hand and connect, press hand and be connected with the oil cylinder seat of oil pump by bearing pin, bar handle places presses hand.The manual reciprocator of this oil pump, because pressing hand directly is connected with oil cylinder seat, and oil cylinder seat can not rotate, therefore bar handle is when the lifting weight, pressing hand can only be confined on the fixing position work, following reciprocally swinging, the swing fulcrum that is manual reciprocator is fixed, conversion direction freely, this is to for example indoor lifting of some occasion, field work etc. have inconvenience, and the residing position of operative employee faces oil pump, high pressure in the oil pump constitutes certain threat to the operator, for example work as some part and can't stand that because of holding under wearing and tearing or the manufacturing condition of poor in-to-in high pressure flies out, brings certain harmfulness to personal safety.

The purpose of this utility model is that a kind of flexible operation, the rotatable hydraulic horizontal jack of hand of pressing easy to use, safe will be provided.

The purpose of this utility model is achieved like this, a kind of rotatable hydraulic horizontal jack of hand of pressing, be by pallet 1, wallboard 2, crane arm 4, oil pump 6, oil cylinder seat 7, oil return valve rod 9, compositions such as the pump housing 14 and the manual reciprocator of oil pump, the manual reciprocator of described oil pump comprises bar handle 12, press hand 11, press hand seat 10, pump core 13, pump core key seat 15 is formed, bar handle 12 inserts to be pressed in the jack of hand 11, press hand 11 by bearing pin 17 with to press hand seat 10 hinged, press on the platform 21 that hand seat 10 is located in oil cylinder seat 7, the pump housing 14 passes the axis hole 24 of pressing hand seat 10, centre hole 23 backs of platform 21 spin together with oil cylinder seat 7, and make press hand seat 10 can be on platform 21 around the pump housing 14 rotations, one end of pump core 13 inserts in the pump housing 14, the other end is provided with pump core key seat 15, and bearing pin 16 passes pump core key seat 15, pressing behind the through hole on the hand 11 the other end with pump core 13 is fixed on and presses on the hand 11.

Below in conjunction with accompanying drawing the utility model is further described below.

Fig. 1 is a constructional drawing of the present utility model.

Fig. 2 is the sectional perspective exploded drawings of oil pump 6 of the present utility model and the manual reciprocator of oil pump.

Fig. 3 is the section-drawing of oil pump 6 of the present utility model and the manual reciprocator of oil pump.

Fig. 4 is a block diagram of the present utility model.

The pump housing 14 of the present utility model is provided with the shaft shoulder 22.The top of 22 hand pump bodies 14 of the shaft shoulder, be positioned at the axis hole 24 of pressing hand seat 10 when mounted, axis hole 24 is step-like, the shaft shoulder 22 is seated on the step of stepped appearance axis hole 24, leave certain interval therebetween, the effect of the shaft shoulder 22 is that moving axially of hand seat 10 pressed in restriction, make press hand seat 10 can only be on platform 21 be the rotation that S. A. is made any direction with the pump housing 14.

Oil pump 6 of the present utility model comprises oil cylinder 27, oil cylinder overcoat 25, top cap 26, piston rod 20, oil cylinder seat 7, one end of oil cylinder 27 is connected with oil cylinder seat 7, the other end is connected with top cap 26, working oil chamber 18 is positioned at an end of oil cylinder 27, in oil cylinder 27, be provided with an end of piston rod 20, the other end of piston rod 20 is hinged by bearing pin 5 and crane arm 4, one end of oil cylinder overcoat 25 is connected with top cap 26, the other end is connected with oil cylinder seat 7, and the cavity that forms between oil cylinder overcoat 25 and the oil cylinder 27 is an oil storage chamber 19.The utility model is provided with oil return valve rod 9 on oil cylinder seat 7, when screwing oil return valve rod 9, can handle and press hand 11, finishes the lifting action of weight; And when unscrewing oil return valve rod 9, at this moment the hydraulic oil in the working oil chamber 18 is back in the oil storage chamber 19 by oil return circuit, makes crane arm 4 be returned to original position under the effect of spring tension.

Pallet 1 of the present utility model is installed on the crane arm 4, and crane arm 4 is articulated in the C point by bearing pin 3 and wallboard 2, and wallboard 2 is articulated in the A point by bearing pin 8 and oil cylinder seat 7, and piston rod 20 is articulated in the B point with crane arm 4 again by bearing pin 5.

The utility model is when installing the manual reciprocator of oil pump, at first will press hand seat 10 is enclosed within on the pump housing 14 by axis hole 24, the centre hole 23 that again pump housing 14 is screwed in platform 21 is interior until screwing, make and press hand seat 10 and be seated on the platform 21, and the pump housing 14 and oil cylinder seat 7 lockings, because the pump housing 14 is provided with the shaft shoulder 22, the shaft shoulder 22 is positioned at the axis hole 24 of pressing hand seat 10, limit with this shaft shoulder 22 and to press moving axially of hand seat 10, make and press hand seat 10 and can only rotate freely around the axle center of the pump housing 14, press hand seat 10 again by bearing pin 17 with to press hand 11 hinged, the swing fulcrum of the manual reciprocator of oil pump is the center F point of bearing pin 17, press hand 11 except can be around bearing pin 17 is finished normal reciprocally swinging, can also follow and press hand seat 10 and make any direction and rotate.

The utility model is to come work like this, at first the operator inserts operating handle 12 and presses in the jack of hand 11, to press hand 11 then rotates to suitable angle and operates, thereby driving pump core 13 pumps in the pump housing 14, this motion can be drawn into hydraulic oil in the pump housing 14 by oil storage chamber 19, be input to working oil chamber 18 by the pump housing 14 by oil circuit again, thereby promoting piston rod 20 travels forward, driving bearing pin 5 by piston rod 20 makes crane arm 4 do the anti-clockwise rotation around the center C point of bearing pin 3, at this moment crane arm 4 can drive pallet 1 and move to the position of height H 2 by the position of original height H1, has so just finished the lifting action of weight; When needs pallet 1 resets, only need unscrew oil return valve rod 9, the hydraulic oil in the working oil chamber 18 is back in the oil storage chamber 19 again by oil return circuit, crane arm 4 returns back to original position under the effect of spring tension simultaneously.When entering the next round operation, as long as screw oil return valve rod 9, handle again and press hand 11, repeat aforesaid operations again and get final product.

The utility model is because the swing fulcrum of the manual reciprocator of oil pump is the center F point of bearing pin 17, this bearing pin 17 will be pressed hand 11 and press hand seat 10 hinged, make press hand 11 except can around bearing pin 17 finish pump, can also follow and press hand seat 10 as freely turning to, make the utility model the time no longer be confined to a fixing position in operation, can select more suitable, a safer angle operate, very easy to use.

Claims

1, a kind of rotatable hydraulic horizontal jack of hand of pressing, be by pallet (1), wallboard (2), crane arm (4), oil pump (6), oil cylinder seat (7), oil return valve rod (9), compositions such as the pump housing (14) and the manual reciprocator of oil pump, it is characterized in that the manual reciprocator of described oil pump comprises bar handle (12), press hand (11), press hand seat (10), pump core (13), pump core key seat (15) is formed, bar handle (12) inserts and presses in the jack of hand (11), press hand (11) by bearing pin (17) with to press hand seat (10) hinged, press on the platform (21) that hand seat (10) is located in oil cylinder seat (7), the pump housing (14) passes the axis hole (24) of pressing hand seat (10), centre hole (23) back of platform (21) spins together with oil cylinder seat (7), and make and press hand seat (10) and can go up at platform (21) and rotate around the pump housing (14), one end of pump core (13) inserts in the pump housing (14), the other end is provided with pump core key seat (15), and bearing pin (16) passes pump core key seat (15), pressing behind the through hole on the hand (11) the other end with pump core (13) is fixed on and presses on the hand (11).

2, the rotatable hydraulic horizontal jack of hand of pressing according to claim 1 is characterized in that the pump housing (14) is provided with the shaft shoulder (22).