CN2416084Y

CN2416084Y - Lifting jack

Info

Publication number: CN2416084Y
Application number: CN 00216946
Authority: CN
Inventors: 金爱玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-21
Filing date: 2000-03-21
Publication date: 2001-01-24
Anticipated expiration: 2010-03-21

Abstract

The utility model discloses a jack, which comprises a base, a lifting rod, a rocking handle, a big climbing device, a small climbing device, a reversing switch, etc. An eyelet is arranged on the lifting rod, a reversing rod is respectively arranged on the big and the small climbing devices and is sheathed in the eyelet on the lifting rod. The outer end of a bearing surface of a cargo boom on the big climbing device is slightly raised upwards. The top of the lifting rod can be movably connected with a hanging plate and a handle sleeve can also be sheathed in the outer end of the rocking handle. When the jack is used, load can be firmly placed on the cargo boom, and the hand feeling is comfortable when the cargo boom is rock. The operation is safe, and the utility model can be used for construction, agricultural machines, particularly tractors, etc.

Description

A kind of jack

The utility model relates to a kind of device of lifting load continuously that is used for, specifically a kind of jack.

The comparatively general manual machinery jack of a kind of use is arranged at present, comprise base, lifting lever, shake handle, the device that climbs greatly, for a short time climb device, switch and connecting rod etc. reverse, the loading surface of crane arm is a plane on the device owing to climb greatly, when lifting load or behind the load lifting on the jack also neither one can maintain the member of load, therefore load can not be stabilized on the crane arm of jack as safe as a housely when operating.In addition, be a metal tube owing to shake handle, particularly winter, feel was relatively poor when shaking, and the port of handle also may injure hand.

The purpose of this utility model is to provide that a kind of load can firmly be positioned on the crane arm, comfortable feel, safety of operation failure-free jack when shaking.

For achieving the above object, a kind of jack of the present utility model comprises base, lifting lever, shakes handle, the device that climbs greatly, for a short time climb device, switch etc. reverses, large and small climbing links to each other with connecting rod between device and handle, perforation on the lifting lever, reverse rod is housed respectively on the large and small device that climbs and is inserted in the eyelet on the lifting lever, the loading surface outer end of crane arm raises up slightly on the device that climbs greatly.

Above-mentioned a kind of jack flexibly connects a suspension plate on the top of lifting lever, offers suppending hole on the plate of outstanding osmanthus.

Above-mentioned a kind of jack fixedly is inserted in the one handle cover in the outer end of shaking handle.

After having adopted technique scheme, when jack during at lifting load, loading will be subjected to climb the greatly clamping of crane arm outer end projection on the device is not easy outside landing; During lifting or after promoting, loading can be maintained in the suppending hole of lifting lever top suspension plate with rope etc., loading will more firmly be carried on the crane arm of the device that climbs greatly like this.After the one handle cover fixedly is inserted in the outer end of shaking handle, hand can feel more comfortable during operation, even winter hand can not feel ice-cold yet, simultaneously metal shakes the handle outer end and encases also with taper knob and can not injure hand, therefore promotes and all as safe as a house reliable to the people to thing during operation.

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model jack.

As shown in Figure 1, jack comprises base 1, lifting lever 2, shakes handle 3, the device 4 that climbs greatly, the device 5 that climbs for a short time, lifting lever 2 usefulness screw rods 16 are fixed on the base 1, and the large and small device 4,5 that climbs is inserted in respectively on the lifting lever 2, and the end of holding that shakes handle 3 fixedly is inserted in plastic handle cover 15.Two climb device 4,5 with shake 3 on handle and link to each other by screw 6 usefulness one connecting rod 7, offering trans D on the lifting lever is 18mm, vertically diameter is the oval eyelet 8 of 14mm, pitch of holes is 23mm, on the large and small device 4,5 that climbs a reverse rod 9 is housed respectively, reverse rod 9 is inserted in the eyelet 8 on the lifting lever 2, the 10 expressions switch that reverses.Climbing greatly, the loading surface outer end of crane arm 11 raises up slightly on the device 4.Top at lifting lever 2 flexibly connects a suspension plate 13 with screw rod 12, offers suppending hole 14 in the lower end of outstanding osmanthus plate 13.

Claims

1, a kind of jack, comprise base, lifting lever, shake handle, the device that climbs greatly, for a short time climb device, switch etc. reverses, described large and small climbing links to each other with connecting rod between device and handle, perforation on the described lifting lever, on the described large and small device that climbs reverse rod is housed respectively and is inserted in the eyelet on the described lifting lever, it is characterized in that the loading surface outer end of crane arm raises up slightly on the described device that climbs greatly.

2, a kind of jack as claimed in claim 1 is characterized in that, flexibly connects a suspension plate on the top of described lifting lever, offers suppending hole on the plate of described outstanding osmanthus.

3, a kind of jack as claimed in claim 1 or 2 is characterized in that, fixedly is inserted in the one handle cover in the described outer end of shaking handle.