CN213475172U

CN213475172U - Lower lifting hook component of hand hoist

Info

Publication number: CN213475172U
Application number: CN202022317547.8U
Authority: CN
Inventors: 陈树忠; 张哲兴; 张贺成
Original assignee: Hebei Gaopeng Machinery Manufacturing Co ltd
Current assignee: Hebei Gaopeng Machinery Manufacturing Co ltd
Priority date: 2020-10-11
Filing date: 2020-10-11
Publication date: 2021-06-18
Anticipated expiration: 2030-10-11

Abstract

The utility model discloses a lower lifting hook subassembly of hand hoist belongs to hand hoist technical field. It comprises a fastener, the lower hook frame of lifting hook and two slit disc structure symmetries down, and the fastener comprises screw bolt and nut, and the upper portion axial extension of lifting hook has hook neck and hook handle under, and the lower port swing joint hook neck of hook frame under two slit discs, and two slit disc lower hook frame combinations form the cavity that supplies the hook handle to hold together in inside together, and the interval is formed with the space that supplies the tail ring of crane chain to hold between the upper portion of two slit disc lower hook frames, and the bolt passes the tail ring just fixes the upper portion at two slit disc lower hook frames through the nut, and the upper portion of two slit disc lower hook frames forms the depressed part respectively, and bolt head, nut fall into corresponding depressed part respectively. After the technical scheme is adopted, the probability that the threaded connecting piece is collided can be greatly reduced, the threads of the bolt head and the nut and the threads of the bolt body are prevented from being damaged, and the on-site maintenance, the disassembly and the assembly are facilitated.

Description

Lower lifting hook component of hand hoist

[ technical field ] A method for producing a semiconductor device

The utility model relates to a hand hoist especially relates to a lower lifting hook subassembly of hand hoist.

[ background of the invention ]

The hand hoist is widely applied to occasions such as national power grids, warehouse, wharfs, power stations, factories, building sites, lumbering fields and the like, the handle is manually pulled back and forth, and the hoisting chain is driven by means of the gear reduction mechanism after friction transmission to drive the load hung on the lower hoisting hook component to complete hoisting operation.

Fig. 2 shows a structure of a conventional lower hook frame assembly, which is composed of a lower hook 2 ' and a lower hook frame 1 ', wherein the lower hook 2 ' is connected with the lower hook frame 1 ' through a fastener 3 ' to form the lower hook frame assembly.

After carefully analyzing the above structure, it is not difficult to find that the existing lower hook frame component structure has the following technical defects:

because the nut 31 'and the bolt head 32' of the fastener 3 'are respectively exposed outside the lower hook frame 1', the threads of the fastener 3 'are easily damaged once the lower hook frame 1' impacts hard foreign matters in the hoisting operation process, when the hand-operated block is randomly thrown on the ground after being used midway, the exposed fastener 3 'always collides with the ground because the hand-operated block is not protected at all, the threads of the fastener 3' are also damaged, and the damaged fastener brings adverse effects to maintenance, disassembly and assembly.

[ Utility model ] content

The to-be-solved technical problem of the utility model is to provide a hand block's lower lifting hook subassembly after improving to the not enough of above-mentioned prior art existence.

The utility model provides an above-mentioned technical problem adopted technical scheme as follows:

the utility model provides a lower lifting hook subassembly of hand hoist, it is by a fastener, the lower hook frame of lifting hook and two slit blade structure symmetries is constituteed down, the fastener comprises screw bolt and nut, upper portion axial extension at the lifting hook has hook neck and hook handle down, the lower port swing joint hook neck of two slit blade lower hook frames, and two slit blade lower hook frame combinations form the cavity that supplies the hook handle to hold together in inside, the interval is formed with the space that supplies the tail ring of crane chain to hold between the upper portion of two slit blade lower hook frames, the bolt passes the tail ring just fixes the upper portion at two slit blade lower hook frames through the nut, its improvement point is that the upper portion of two slit blade lower hook frames forms the depressed part respectively, bolt head, nut fall into corresponding depressed part respectively.

The two lower hook frames are in a half shape, and after the half block type lower hook frames are connected into an integral piece, the strength is high, and the integral piece is safe and reliable.

The gap and the lower port which are arranged up and down are in a cross shape with the cavity.

Compared with the prior art, the utility model the advantage that has is:

because the upper portions of the two lower hook frames are respectively provided with the concave parts, the bolt heads and the nuts respectively fall into the corresponding concave parts, so that the probability that the threaded connecting pieces are collided is greatly reduced, the threads of the bolt heads and the nuts and the threads of the bolt bodies are prevented from being damaged and deformed, and the field maintenance and the disassembly are facilitated.

[ description of the drawings ]

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a lower hook assembly of the hand-operated hoist of the present invention;

fig. 2 is a schematic structural view of a lower hook assembly of a conventional hand hoist.

[ detailed description ] embodiments

Referring to fig. 1, a lower hook assembly of a manual hoist is composed of a fastening member, a lower hook 2 and two lower hook frames 1 having symmetrical structures, wherein the fastening member is composed of a bolt and a nut 31, a hook neck 20 and a hook handle 21 axially extend from an upper portion of the lower hook 2, a lower port 10 of the two lower hook frames 1 is movably connected to the hook neck 20, and the two lower hook frames 1 are assembled together to form a cavity 11 for accommodating the hook handle 21 therein, a space 12 for accommodating a tail ring 41 of a hoisting chain 4 is formed between upper portions of the two lower hook frames 1 at intervals, the bolt passes through the tail ring 41 and is fixed to the upper portions of the two lower hook frames 1 by the nut 31, and the bolt is modified in such a manner that recesses 13-1 and 13-2 are respectively formed in the upper portions of the two lower hook frames 1, the bolt head 32 falls into the recess 13-2, and the nut 31 falls into the recess 13-1.

After the two lower hook frames 1 are combined together, the lower ports 10 of the two lower hook frames 1 are sleeved with the hook necks 20 and movably clasped; the hook handle 21 extends into the cavity 11, and the outer edge of the hook handle 21 is in clearance fit with the cavity side wall of the cavity 11. Thus, the lower hook 2 can rotate 360 degrees.

The upper parts of the two lower hook frames 1 are respectively provided with through holes (not marked) for bolts to pass through.

Two lower hook racks 1 are in a half shape.

The gap 12, the lower port 10 and the cavity 11 are arranged in a cross shape.

The hand block is specifically a lever block or a chain block.

Claims

1. The utility model provides a lower lifting hook subassembly of hand hoist, it is by a fastener, the lower hook frame of lifting hook and two slit blade structure symmetries constitutes down, the fastener comprises screw bolt and nut, upper portion axial extension at the lifting hook has hook neck and hook handle down, the lower port swing joint hook neck of two slit blade lower hook frames, and two slit blade lower hook frame combinations form the cavity that supplies the hook handle to hold together in inside, the interval is formed with the space that supplies the tail ring of crane chain to hold between the upper portion of two slit blade lower hook frames, the bolt passes the tail ring just fixes the upper portion at two slit blade lower hook frames through the nut, characterized by forms the depressed part respectively on the upper portion of two slit blade lower hook frames, the bolt head, the nut falls into corresponding depressed part respectively.

2. The lower hook assembly of the chain block of claim 1, wherein: the two lower hook frames are in a half shape.

3. The lower hook assembly of the hand hoist as claimed in claim 1 or 2, wherein the gap is arranged one above the other, and the lower port and the cavity are in a cross shape.