CN2937084Y

CN2937084Y - Lifting dop for step-by-step lift type

Info

Publication number: CN2937084Y
Application number: CN 200620119211
Authority: CN
Inventors: 张新国
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-03
Filing date: 2006-08-03
Publication date: 2007-08-22
Anticipated expiration: 2016-08-03

Abstract

The utility model relates to a stepping lifting-type lifting coupling, which belongs to the lifting appliances field, and is used to solve the problems on complex structure of the stepping lifting-type lifting coupling and unreasonable manual loose-clip device; the utility model comprises a base with a snap ring (1) and an assorted fixture block (3), the fixture block (3) is provided with a grip ring with a big saddle (8), the saddle is connected with the fixture block (3) via a plurality of screws (12), a big pressure spring (13) is arranged between a limit ring (14) and the grid ring with the big saddle (8), a kingbolt (15) is screwed down on the grid ring with the big saddle (8) through the base with the snap ring (1); in addition, an adjusting sleeve (11) is connected with the base with the snap ring (1) through the helicitic texture, a coping (17) with a center hole (18) is screwed down on the adjusting sleeve (11) through the helicitic texture, the coping is pressed on the top surface of the limit ring (14) through a steel ball (19) with uniform circular slides and a sealing ring (20), the utility model has the advantages of simple structure, easy adjustment, easy maintenance, safety and reliability, long service life, convenient manual loose-clip operation, low cost and easy implementation.

Description

The hoisting clamper that is used for the stepping hoisting type

Technical field

The utility model belongs to lifting lifting apparatus facility field, relates to a kind of hoisting clamper that is used for the stepping hoisting type.

Background technology

In the prior art, the hoisting clamper of the stepping hoisting type in the lifter (the so-called unidirectional type that promptly only has enhanced feature), its clip-loosing mechanism generally all is by pulling the loose snap ring on the fixture block pallet that is contained in the dop bottom, hold the fixture block of state and it is unclamped thereby upwards touch, as the disclosed scheme of Chinese patent ZL022534571 promptly so, its weak point is, complex structure, and also the operation of pine card has inconvenience more.

Summary of the invention

The technical matters that solves:

The structure of the hoisting clamper by changing the stepping hoisting type is located at the dop top with its clip-loosing mechanism, and is not only simple in structure, and the pine card is easy to operate.

The technical scheme that adopts:

The hoisting clamper that is used for the stepping hoisting type, have base hold concurrently snap ring, hold self-locking mechanism, manually clip-loosing mechanism and top cover, it is characterized in that: the base snap ring 1 of holding concurrently has centre hole 2, the top in this hole is the horn-like opening 4 supporting with the outer rim of fixture block 3, has in this mouthful to complement one another and uniform fixture block 3; Fixture block 3 has the inner clip head 5 that the energy encircling type holds the load beam 22 in using, corresponding little spring 6 all is housed between the adjacent fixture block 3, have the function contact surface that complements one another between fixture block 3 and the horn-like opening 4, all have stove bolt hole 7 on the end face of each fixture block 3; Has the supporting pressure ring big spring abutment 8 of holding concurrently on the fixture block 3, on this spring abutment interval type have respectively that the uniform quantity with fixture block 3 equates and with supporting indent aperture 9 and king bolt hole 10, stove bolt hole 7, the pressure ring big spring abutment 8 of holding concurrently passes supporting indent aperture 9 and is screwed into stove bolt hole 7 and links together with fixture block 3 by immersing oneself in Screw 12, big stage clip 13 is contained in shelves ring 14 and pressure ring is held concurrently between the big spring abutment 8, and the supporting knock hole 16 that king bolt 15 passes on the baffle ring 14 is screwed in the king bolt hole 10; Other has the cover of adjustment 11, interconnect by supporting screw threads for fastening structure and the base snap ring 1 of holding concurrently, top cover 17 interconnects by supporting screw threads for fastening structure and adjustment cover 11, this top cover has the centre hole 18 that can expose king bolt 15, and top cover 17 is pressed on the end face of shelves ring 14 by uniform steel ball 19 with circular slideway and the seal ring 20 that is contained in the circular groove.

Beneficial effect:

The hoisting clamper that is used for the stepping hoisting type, simple in structure, easy adjustment, easy care, safe and reliable, long service life, especially manually the pine card is convenient in operation, and cost is low, easily implements.

Description of drawings

Fig. 1, Overall Group's assembling structure scheme drawing;

Fig. 2, by A-A cutaway view shown in Figure 1;

Fig. 3, by B-B cutaway view shown in Figure 1;

Fig. 4, by the enlarged drawing at I position shown in Figure 1;

Fig. 5, by the enlarged drawing at II position shown in Figure 1;

Fig. 6, in lifter the scheme drawing of applied in any combination;

The specific embodiment

Shown in Fig. 1,2,3 and 6, immersing oneself in the structure and the assembling in Screw 12 and supporting indent aperture 9 and stove bolt hole 7 must guarantee normally self-locking of fixture block 3, encircling type holds the load beam 22 in using, and can normally loosely automatically block or manual pine card release load beam 22 again.

As shown in Figure 1, 2, 3, fixture block 3 is three to nine, and the fixture block 3 among Fig. 2,3 is five.

As shown in Figure 4, have gap S between the periphery of shelves ring 14 and the inwall of top cover 17, after the assembling, have gap d between the end face of the bottom surface of shelves ring 14 and adjustment cover 11.

As shown in Figure 5, inner clip head 5 is the structure of the hangnail 21 with oblique interior top, and hangnail 21 is the buttress thread type or is the bullet structure of regular distribution.

Shown in Fig. 1,6, in a cover lifter, two double-acting cylinders 24 of lifting one's head are housed on the total journey 23 of support reach dop 25 down, and upper chuck 26 links together by hold concurrently hollow piston rod 27 screw-types of snap ring 1 and cylinder 24 of base, be I.S.S structure as the hold concurrently centre hole 2 of snap ring 1 of the base in the upper chuck 26 this moment, and hold concurrently on the snap ring 1 as the base in the following dop 25 is that negative thread connecting bore 29 is arranged, by supporting screw 30 external terminal pads 31, be contained on the total journey 23 of support by terminal pad 31 fixed types; Load beam 22 is coaxial type and vertically passes the hollow of piston rod 27 and the central axis O-O ' of upper and

lower dop

26 and 25; The total journey 23 of support is installed on the basis, location, and load P is added on the base body 32 of load beam 22 lower ends.28-piston among the figure, 34, the working medium of 33-cylinder 24 following (into and out of) mouthful, go up (go out, advance) mouthful.

Principle of work:

Add load P and when it is promoted, the working medium of cylinder 24 enters cylinder 24 by end opening 34, it is up to promote piston 28, working medium refluxes by suitable for reading 33 simultaneously, piston 28 promotes upper chuck 26 by piston rod 27 and rises, at this moment, in upper chuck 26, pine card state fixture block 3 down is with base the hold concurrently rising of snap ring 1 and decline relatively, under the action of gravity of hangnail 21 and load P, realize automatically the encircling type of load beam 22 is held simultaneously, be raised so this bar rises with upper chuck 26, meanwhile, in following dop 25, the rising of load beam 22 is the oblique of " suitable " hangnail 21 of its fixture block 3, in case and fixture block 3 driven up, promptly pine blocks automatically, until piston 28 up putting in place.

Promptly stop behind the upper chuck 26 rising certain altitudes, at this moment, the working medium of cylinder 24 advances, go out oppositely, piston rod 27 will drive upper chuck 26 and descend jointly, at this moment, in the following dop 25, under the action of gravity of load P, the decline of load beam 22 is the oblique of " contrary " hangnail 21 of its fixture block 3, and fixture block 3 self also has the effect of the downward force of being subjected to, so fixture block 3 is automatic lowering under the action of gravity of hangnail 21 and load P simultaneously, and realize automatically the encircling type of load beam 22 is held, it can not be descended, meanwhile, in upper chuck 26, with respect to for the load beam 22 that holds, its fixture block 3 is the oblique decline that " suitable " its hangnail 21, holding concurrently for the snap ring 1 with respect to its base is again to rise, so the pine card until piston 28 descending putting in place, begins next circulation more automatically; Action and so forth realizes the lifting to load P.

In the lifting process or promote to finish and Song Kashi, only need directed turn to hold the adjustment cover 11 of the dop in the state, rise to a certain degree with respect to the base snap ring 1 of holding concurrently, the final cover 11 of adjusting promotes shelves ring 14, and then it is up to drive king bolt 15, further drive pressure ring is held concurrently big spring abutment 8 also by 3 risings of Screw 12 drive fixture blocks, and the loose card of realization immediately also can be pulled out load beam 22, in like manner also can put into load beam 22.

Claims

1, the hoisting clamper that is used for the stepping hoisting type, have base hold concurrently snap ring, hold self-locking mechanism, manually clip-loosing mechanism and top cover, it is characterized in that: the base snap ring (1) of holding concurrently has centre hole (2), the top in this hole is the supporting horn-like opening (4) of outer rim with fixture block (3), has in this mouthful to complement one another and uniform fixture block (3); Fixture block (3) has the inner clip head (5) that the energy encircling type holds the load beam (22) in using, corresponding little spring (6) all is housed between the adjacent fixture block (3), have the function contact surface that complements one another between fixture block (3) and the horn-like opening (4), all have stove bolt hole (7) on the end face of each fixture block (3); Has the supporting pressure ring big spring abutment (8) of holding concurrently on the fixture block (3), on this spring abutment interval type have respectively that the uniform quantity with fixture block (3) equates and with stove bolt hole (7) supporting indent aperture (9) and king bolt hole (10), the press big spring abutment (8) of holding concurrently passes supporting indent aperture (9) and is screwed into stove bolt hole (7) and fixture block (3) and links together by immersing oneself in Screw (12), big stage clip (13) is contained in shelves rings (14) and pressure ring is held concurrently between the big spring abutment (8), and the supporting knock hole (16) that king bolt (15) passes on the baffle ring (14) is screwed in the king bolt hole (10); Other has regulating sleeve (11), interconnect by supporting screw threads for fastening structure and the base snap ring (1) of holding concurrently, top cover (17) interconnects by supporting screw threads for fastening structure and adjustment cover (11), this top cover has the centre hole (18) that can expose king bolt (15), and top cover (17) is pressed on the end face of shelves rings (14) by uniform steel ball (19) with circular slideway and the seal ring (20) that is contained in the circular groove.

2, the hoisting clamper that is used for the stepping hoisting type according to claim 1 is characterized in that: fixture block (3) is three to nine.

3, the hoisting clamper that is used for the stepping hoisting type according to claim 1 and 2, it is characterized in that: have gap (S) between the periphery of shelves rings (14) and the inwall of top cover (17), after the assembling, has gap (d) between the end face of the bottom surface of shelves rings (14) and adjustment cover (11).

4, the hoisting clamper that is used for the stepping hoisting type according to claim 1 and 2 is characterized in that: inner clip head (5) is the structure of the hangnail (21) with oblique interior top, and hangnail (21) is the buttress thread type or is the bullet structure of regular distribution.

5, the hoisting clamper that is used for the stepping hoisting type according to claim 3, its operation is: inner clip head (5) is the structure of the hangnail (21) with oblique interior top, and hangnail (21) is the buttress thread type or is the bullet structure of regular distribution.