CN2340756Y

CN2340756Y - Bidirectional hand operated hoist

Info

Publication number: CN2340756Y
Application number: CN 98239055
Authority: CN
Inventors: 陆海洪; 阎善权; 陈杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-09
Filing date: 1998-10-09
Publication date: 1999-09-29
Anticipated expiration: 2008-10-09

Abstract

The utility model relates to a bidirectional manually pulling lifting hoist which is composed of a lifting chain pulley, a positive ratchet wheel, an inverse ratchet wheel, a detent, a positive brake base, an inverse brake base, a positive friction sheet, an inverse friction sheet, a bracket, a manual chain pulley, a housing, a manual zipper, etc. The utility model is characterized in that the inverse brake base is connected with one end of a long shaft with five teeth, and both end surfaces of the inverse brake base abut on the manual chain pulley and the bracket; the bracket is connected with the long shaft with five teeth and a left wallboard; the two friction sheets of the inverse ratchet wheel is sheathed with the surface of the inverse brake base; one end of the inverse detent is connected with the bracket, and the other end is clamped with the inverse ratchet wheel. The utility model which can complete positive lifting and inverse lifting has the advantages of time saving, reduced labour intensity, convenient operation, convenient maintenance, and safe use.

Description

Two-way lifting chain block

The utility model is the device that is applied to the loading and unloading usefulness of industrial and agricultural production place.

When locating to be used for erecting equipment and lifting cargo in factory, mine, building ground, harbour, warehouse etc. at present, the use chain block of wide model can conveniently be finished the task of handling equipment; But this device can only unidirectional lifting and braking, finish one-way only operation after, must jack, lengthen working hours, for the large-tonnage chain block, its complicated operation increases the weight of operator's labour intensity.

The purpose of this utility model is to make a kind of two-way lifting chain blocks, and this device becomes unidirectional lifting, braking is two-way lifting, braking, can lifting hook respectively be housed at the two ends of lifting chain, can two-way lifting, and easy to operate, reduce labor intensity.

The utility model mainly by: lifting chain 1, right wallboard 2, left wallboard 3, plate gear 4, four tooth minor axises 5, forward ratchet 6, forward friction lining 7, lifting chain change 8, forward drg seat 9, five tooth major axis 10, splined hole gear 11, forward ratchet 12, oppositely ratchet 13, oppositely ratchet 14, oppositely friction lining 15, plugging device seat 16, carriage 17, bangle wheel 18, bangle wheel case 19, pull chain 20 and form; As shown in Figure 1; It is characterized in that: plugging device seat 16 connects with five tooth major axis, 10 1 ends, one end and bangle wheel 18 are abutted against, other end and carriage 17 are abutted against, carriage 17 connects with five tooth major axis, 10 1 ends, left wallboard 3, oppositely ratchet 14 covers are associated on plugging device seat 16 surfaces, and two reverse friction lining 15 covers are coupled on plugging device seat 16 surfaces, and lay respectively at the place, two sides of reverse ratchet 14, oppositely ratchet 13 1 ends connect with carriage 17, an end and oppositely ratchet 14 clampings.

The utility model is in original unidirectional lifting, on the architecture basics of braking, five tooth major axis are extended, reverse ratchet 14, oppositely ratchet 13, two reverse friction linings 15 and carriages 17 have been increased at the opposite side of bangle wheel 18, purpose that equally can starting parcel in the time of can finishing reverse handle slide fastener like this.When forward pulling pulls chain 20, the same with present working process; And oppositely spur when pulling chain 20, pulling bangle wheel 18 is oppositely to rotation; At this moment, bangle wheel 18 breaks away from forward friction lining 7, forward ratchet 6, forward drg seat 9, and with reverse friction lining, plugging device seat 16, oppositely ratchet 14 is squeezed into one and rotates, and drive five tooth major axis 10 and rotate together, two plate gears of tooth ingear 4 with five tooth major axis 10 rotate simultaneously, two four tooth minor axises 5 rotate with two plate gears 4, rotate and drive the splined hole gear, starting sprocket wheel 8, lifting chain 1 are rotated and starting parcel, and, finish reverse lifting with reverse ratchet 14, oppositely ratchet 13 brakings.

The utility model compared with prior art, owing on the basis of the lifting chain block that this device is original, increase reverse friction lining, reverse ratchet, reverse ratchet, plugging device seat and carriage, can finish chain hoist wheel, the two-way starting parcel of lifting chain like this, save over back the blank operation of chain, save work-hours, the person's of lightening one's labor intensity is more outstanding for the large-tonnage chain block especially, save time, convenient operating maintenance reduces equipment cost, and is safe in utilization.

Description of drawings:

Fig. 1 is an overall structure scheme drawing of the present utility model;

Fig. 2 is the A-A cutaway view of the utility model Fig. 1;

Fig. 3 is the B-B cutaway view of the utility model Fig. 1;

Fig. 4 is the C-C cutaway view of the utility model Fig. 1.

Embodiment of the present utility model:

The utility model by lifting chain 1, right wallboard 2, left wallboard 3, plate gear 4, four tooth minor axises 5, forward ratchet 6, forward friction lining 7, chain hoist wheel 8, forward drg seat 9, five tooth major axis 10, splined hole gear 11, forward ratchet 12, oppositely ratchet 13, oppositely ratchet 14, oppositely friction lining 15, plugging device seat 16, carriage 17, bangle wheel 18, bangle wheel case 19, pull chain 20 and form, shown in Fig. 1,2,3,4; Wherein lifting chain 1, right wallboard 2, left wallboard 3, plate gear 4, four tooth minor axises 5, forward ratchet 6, forward friction lining 7, chain hoist wheel 8, forward drg seat 9, splined hole gear 11, forward ratchet 12 are all selected original parts for use; Five tooth major axis 10 get final product than former five tooth major axis lengthening; Plugging device seat 16 is with the endoporus increase negative thread of original drg seat, can connect with the end, screw thread place that has of five tooth major axis 10; Carriage 17 usefulness steel plates process; Oppositely ratchet 13, oppositely ratchet 14 and forward ratchet 12, forward ratchet 6 are the same; Reversing sense was installed and is got final product when difference was to use; Bangle wheel 18, bangle wheel case 19, pull chain 20 and all select original parts for use.

Bangle wheel 18, chain hoist wheel 8, splined hole gear 11 are connected with five tooth major axis, two plate gears 4 connect with the tooth engagement of five tooth major axis 10, four tooth minor axises, 5 two ends connect with plate gear 4, left wallboard 3, left and right wallboard two ends and bangle wheel cover body 19 are fixedly connected, chain hoist wheel 8 is positioned in the middle of the left and right wallboard 3,2, and lifting chain 1 connects with chain hoist wheel 8.Forward drg seat 9 and five tooth major axis, 10 cover connection are between bangle wheel 18, left wallboard 3.Forward friction lining 7, forward ratchet 6 and 9 sockets of forward drg seat, forward ratchet 12 1 ends connect with left wallboard 3, the other end and 6 clampings of forward ratchet, pulling chain 20 connects with bangle wheel 18, plugging device seat 16 connects with five tooth major axis, 10 1 ends, one end face and bangle wheel 18 are abutted against, and other end and carriage 17 are abutted against, and carriage 17 connects with an end, the left wallboard 3 of five tooth major axis 10.Oppositely ratchet 14 covers are associated on plugging device seat 16 surfaces, two reverse friction linings 15, and lay respectively at the place, side of reverse ratchet 14, and oppositely ratchet 13 1 ends connect with carriage 17, and two-way lifting chain block is formed in an end and reverse ratchet 14 clampings.

During work, can pull and start slide fastener 20, can pass through chain hoist wheel, lifting chain and starting parcel by the positive dirction pulling; Also can oppositely spur and pull chain 20, with positive dirction equally by chain hoist wheel, lifting chain and starting parcel.Like this can positive and negative both direction work, save time, reduce labor intensity.

Claims

1, a kind of two-way lifting chain block, by lifting chain (1), left side wallboard (3), right wallboard (2), plate gear (4), four tooth minor axises (5), forward ratchet (6), forward friction lining (7), chain hoist wheel (8), forward drg seat (9), five tooth major axis (10), splined hole gear (11), forward ratchet (12), bangle wheel (18), bangle wheel case (19), pulling chain (20) forms, wherein bangle is taken turns (18), chain hoist wheel (8), splined hole gear (11) connects with five tooth major axis (10), two plate gears (4) connect with the tooth engagement of five tooth major axis (10), a left side, right wallboard (3), (2) two ends and bangle wheel cover body (19) is fixedly connected, chain hoist wheel (8) is positioned at a left side, right wallboard (3), (2) in the middle of, lifting chain (1) connects with chain hoist wheel (8), forward drg seat (9) and five tooth major axis (10) cover connection, be positioned between bangle wheel (18) and the left wallboard (3), forward friction lining (7), forward ratchet (6) and forward drg seat (9) cover connection, pulling chain (20) connects with bangle wheel (18), forward ratchet (12) one ends connect with left wallboard (3), the other end and forward ratchet (6) clamping, it is characterized in that: plugging device seat (16) connects with five tooth major axis (10) one ends, one end and bangle wheel (18) are abutted against, other end and carriage (17) are abutted against, carriage (17) and five tooth major axis (10) one ends, left side wallboard (3) connects, oppositely ratchet (14) cover is associated on plugging device seat (16) surface, two reverse friction linings (15) cover is coupled on plugging device seat (16) surface, and the two sides that lay respectively at reverse ratchet (14) are located, oppositely ratchet (13) one ends connect with carriage (17), an end and oppositely ratchet (14) clamping.