CN216190324U

CN216190324U - Multifunctional lifting appliance

Info

Publication number: CN216190324U
Application number: CN202122827244.5U
Authority: CN
Inventors: 贾会杰; 邹香慧
Original assignee: Hebei Shengjin Rigging Manufacturing Co ltd
Current assignee: Hebei Shengjin Rigging Manufacturing Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-05
Anticipated expiration: 2031-11-18

Abstract

A multifunctional lifting appliance comprises a lifting appliance main body, a rotary indexing sleeve and a sliding sleeve. The bottom of hoist main part is provided with interior support body, is provided with the locking slider on the lateral wall of interior support body slidable, and the locking slider can be at the central axis direction reciprocating sliding of support body in the perpendicular to. The rotary indexing sleeve can rotate circumferentially on the hanger main body, a first control sliding groove is arranged on the inner side face of the rotary indexing sleeve, the first control sliding groove is in sliding fit with the tail end of the locking sliding block, and the depth of the first control sliding groove gradually changes from one end of the first control sliding groove to the other end of the first control sliding groove. The sliding sleeve can slide in a reciprocating manner along the direction of the central axis of the inner frame body, and the sliding sleeve is in sliding fit with the rotary indexing sleeve and is used for controlling the rotation of the rotary indexing sleeve. The utility model can realize the automatic clamping of the mushroom head structure and provide reliable and stable clamping operation. The utility model has the advantages of small volume, light weight, large hoisting range and the like.

Description

Multifunctional lifting appliance

Technical Field

The utility model belongs to the technical field of nuclear waste treatment equipment, and particularly relates to a multifunctional lifting appliance.

Background

Nuclear industry produces nuclear waste continuously, and volume reduction treatment of nuclear waste is a common form of waste treatment in nuclear waste treatment engineering.

In the prior art, the volume reduction workroom has a certain shielding function and is connected with workshops or stations distributed at different positions. Between each station and the workshop, the materials are generally carried and transferred by a manipulator. Due to the complex working condition environment, a plurality of dusts exist in some workshops, while the radiation dose is large in some workshops, and due to the complex and high-risk working environment, a great deal of inconvenience is brought to the equipment maintenance. Due to the problems, the maintenance and repair of the electromechanical products are difficult. Therefore, products with precise delivery over long distances and less maintenance become the first choice for users.

The volume reduction workshop has a certain shielding function, an operation glove hole, a peephole, a lamp and the like are reserved on an operation surface, special sealing gloves are arranged, and an operator can complete various operations in the workshop through the gloves. Volume reduction refers to the operation of cleaning, disassembling and compressing the nuclear waste to reduce the volume of the nuclear waste. Due to the diversity of nuclear waste and the existence of hazards such as nuclear radiation, a shield such as a concrete wall is generally arranged in a workshop to ensure the safety performance of the workshop, but the difficulty is brought to the transfer of materials between a transfer channel and a station.

In addition, according to the work needs and the diversification of hoisted object types, the prior art can provide multiple types of hoists, and each kind of hoist all has different mounting means, and this causes the hoist to change the operation degree of difficulty and is big, and hoisting system uses the existence of problem such as complex operation, complicacy.

SUMMERY OF THE UTILITY MODEL

Problem (A)

In summary, how to solve the problems of complex operation and complexity of the lifting appliance in the prior art becomes a problem to be solved urgently by those skilled in the art.

(II) technical scheme

The utility model provides a multifunctional lifting appliance, which comprises:

the lifting appliance comprises a lifting appliance main body, wherein an annular inner frame body is arranged at the bottom end of the lifting appliance main body, the inner frame body is provided with a clamping and accommodating space, a locking slide block is slidably arranged on the side wall of the inner frame body, the locking slide block can slide in a reciprocating manner in the direction vertical to the central axis of the inner frame body, and the head end of the locking slide block can slide out relative to the inner side surface of the inner frame body;

the rotary indexing sleeve is sleeved on the hanger main body and can circumferentially rotate on the hanger main body, a first control sliding groove is formed in the inner side face of the rotary indexing sleeve, the first control sliding groove is in sliding fit with the tail end of the locking sliding block, the depth of the first control sliding groove gradually changes from one end of the first control sliding groove to the other end of the first control sliding groove, the head end of the locking sliding block protrudes relative to the inner side face of the inner frame body when the locking sliding block is in a state of being matched with the shallow end of the first control sliding groove, and the head end of the locking sliding block retracts relative to the inner side face of the inner frame body when the locking sliding block is in a state of being matched with the deep end of the first control sliding groove;

the cover is located the outside cover of gyration index sleeve is equipped with the slip cap, the slip cap can be followed reciprocal slip in the central axis direction of inner support body, the slip cap with gyration index sleeve sliding fit, be used for control the rotation control of gyration index sleeve, the slip cap gliding to extreme position during the gyration index sleeve is rotatory the shallow end of first control spout corresponds with the tail end of locking slippery head, when the slip cap was slided to extreme position, gyration index sleeve is rotatory the deep end of first control spout corresponds with the tail end of locking slippery head.

Preferably, in the multifunctional lifting appliance provided by the utility model, at least two locking sliding blocks are arranged, and all the locking sliding blocks are arranged around the central axis of the inner frame body at equal intervals; the inner side surface of the rotary indexing sleeve is provided with a plurality of first control chutes, and the first control chutes and the locking sliding blocks are arranged in a one-to-one correspondence manner.

Preferably, in the multifunctional lifting appliance provided by the utility model, the rotary indexing sleeve comprises an upper mounting disc, a lower mounting disc and a rotary sleeve body; the upper mounting disc and the lower mounting disc are arranged at intervals and are fixedly arranged on the inner frame body; the rotary sleeve body is matched with the upper mounting disc and the lower mounting disc in a rotating mode; the first control chute is arranged on the rotary sleeve body.

Preferably, in the multifunctional lifting appliance provided by the utility model, the head end of the locking slide block is of a smooth convex curved surface structure.

Preferably, in the multifunctional lifting appliance provided by the utility model, the tail end of the locking sliding block is provided with a roller which is in rolling fit with the first control sliding groove.

Preferably, in the multifunctional lifting appliance provided by the utility model, an installation groove is arranged at the tail end of the locking sliding block, and the roller is rotatably arranged in the installation groove; the outer circular surface of the roller is arranged in a protruding mode relative to the tail end of the locking sliding block.

Preferably, in the multifunctional lifting appliance provided by the utility model, the lifting appliance main body is of a cylindrical structure, the inner frame body is of a cylindrical structure, and the inner frame body and the lifting appliance main body are coaxially arranged.

Preferably, in the multifunctional lifting appliance provided by the utility model, a flange plate is arranged at the top end of the lifting appliance main body; the flange plate is detachably connected with the lifting pulley block.

Preferably, in the multifunctional lifting appliance provided by the utility model, the lifting pulley block comprises an installation seat, and pulleys are arranged on the installation seat through wheel shafts; the number of the pulleys is at least two; the mounting seat and the flange plate are detachably connected through bolts.

Preferably, in the multifunctional lifting appliance provided by the utility model, a linear limiting groove is arranged on the sliding sleeve, a limiting block is fixedly arranged relative to the lifting appliance main body, and the limiting block is in sliding fit with the limiting groove and used for limiting the sliding sleeve to slide linearly relative to the lifting appliance main body; and a second control sliding groove is formed in the outer side surface of the rotary indexing sleeve, a conversion block in sliding fit with the second control sliding groove is arranged on the sliding sleeve, and the up-and-down sliding of the sliding sleeve is converted into the circumferential rotation of the rotary indexing sleeve through the sliding fit of the conversion block and the second control sliding groove.

(III) advantageous effects

The utility model provides a multifunctional lifting appliance which comprises a lifting appliance main body, a rotary indexing sleeve and a sliding sleeve. The bottom of hoist main part is provided with interior support body, is provided with the locking slider on the lateral wall of interior support body slidable, and the locking slider can be at the central axis direction reciprocating sliding of support body in the perpendicular to. The rotary indexing sleeve can rotate circumferentially on the hanger main body, a first control sliding groove is arranged on the inner side face of the rotary indexing sleeve, the first control sliding groove is in sliding fit with the tail end of the locking sliding block, and the depth of the first control sliding groove gradually changes from one end of the first control sliding groove to the other end of the first control sliding groove. The sliding sleeve can slide in a reciprocating manner along the direction of the central axis of the inner frame body, and the sliding sleeve is in sliding fit with the rotary indexing sleeve and is used for controlling the rotation of the rotary indexing sleeve. The utility model aims to provide a lifting appliance device with small volume and light weight and large lifting weight range. The utility model has the advantages of small volume, light weight, large hoisting range and the like.

Drawings

FIG. 1 is a cross-sectional view of a multi-functional spreader engaging mushroom head structures in accordance with an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an appearance of the multifunctional spreader according to an embodiment of the utility model.

In fig. 1 and 2, the correspondence between the part names and the reference numerals is:

the lifting appliance comprises a lifting appliance main body 1, an inner frame body 2 and a locking slide block 3;

a rotary indexing sleeve 4, an upper mounting disc 41, a lower mounting disc 42 and a rotary sleeve body 43;

the device comprises a sliding sleeve 5, a roller 6, a mounting seat 7, a pulley 8 and a linear limiting groove 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In addition, in the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.

Referring to fig. 1 and fig. 2, fig. 1 is a cross-sectional view illustrating a multifunctional lifting device of an embodiment of the present invention engaging a mushroom head structure; fig. 2 is a schematic structural diagram of an appearance of the multifunctional spreader according to an embodiment of the utility model.

The utility model provides a multifunctional lifting appliance, which belongs to lifting equipment applied to nuclear waste transfer in nuclear waste volume reduction treatment.

In the utility model, the multifunctional lifting appliance provided by the utility model comprises the following components:

1. hanger body 1

The hanger main body 1 is a main body structure of the multifunctional hanger of the utility model, and has the functions of weighing and mounting other components. In one embodiment of the present invention, the hanger main body 1 has a two-section structure, the upper section is a cylinder, the lower section is a cylinder coaxially disposed with the upper section, the diameter of the lower section is larger than that of the upper section, and the top end of the upper section is provided with a flange (disc) coaxially disposed with the upper section.

The hanger main body 1 is integrally formed by metal materials, and specifically, the hanger main body 1 is made of stainless steel or cast iron materials.

In a use state, the bottom end of the hanger main body 1 is provided with an annular inner frame body 2. The inner frame body 2 is circular, the inner frame body 2 has a large wall thickness, and the side wall of the inner frame body 2 is used for installing the locking slide block 3. Inner frame body 2 adopts stainless steel or cast iron material integrated into one piece, and inner frame body 2 sets up with hoist main part 1 is coaxial, and inner frame body 2 is fixed to be set up in the bottom of hoist main part 1.

Inner frame body 2 is ring shape (cylinder) structure, inner frame body 2 cavity, inner frame body 2 has the tight accommodation space of clamp, has seted up the slide opening structure on inner frame body 2's the lateral wall, is provided with locking slider 3 (locking slider 3 installs in the slide opening structure) on inner frame body 2's the lateral wall slidable, and the slide opening structure designs according to locking slider 3's shape, and locking slider 3 can slide and locking slider 3 can not rock in the slide opening structure.

The locking slider 3 is a part for realizing the clamping of the nuclear waste transfer apparatus according to the present invention, and therefore, the locking slider 3 should have a high structural strength. Preferably, the locking slider 3 is integrally formed by stainless steel or cast iron.

Locking slider 3 can be in the central axis direction reciprocating sliding of perpendicular to inner frame body 2, and the head end (the head end is used for blocking the mushroom head structure at nuclear waste transfer device top) of locking slider 3 can be for the medial surface roll-off of inner frame body 2, behind the head end roll-off inner frame body 2 of locking slider 3, can block the mushroom head structure at nuclear waste transfer device top. The mushroom head structure is a clamping structure at the top of the nuclear waste transfer device, the mushroom head structure is integrally similar to a mushroom in shape, the upper end and the lower end of the mushroom head structure are smooth ball head structures in an upright state, the middle of the mushroom head structure is a wine barrel structure, the mushroom head structure is integrally formed by a metal material and then is fixedly arranged at the top of the nuclear waste transfer device. The multifunctional lifting appliance provided by the utility model can clamp the mushroom head structure (clamped at the bottom end of the mushroom head structure) by arranging the locking slide block 3, so that the nuclear waste transfer device is lifted.

According to the structure, the inner frame body 2 is arranged at the bottom of the lifting appliance main body 1, the locking slide block 3 is arranged on the inner frame body 2, and the locking slide block 3 can slide relative to the inner frame body 2 so as to clamp the mushroom head structure arranged at the top of the nuclear waste transfer device. In order to control the sliding of the locking slide block 3 and avoid the occurrence of the situation that the mushroom head is separated due to the incorrect sliding of the locking slide block 3 in the hoisting process (the mushroom head is separated to cause the hoisting of the nuclear waste transfer device to fall), the utility model also provides the rotary indexing sleeve 4 on the hoisting tool main body 1, the whole body of the rotary indexing sleeve 4 is of a cylindrical structure, the rotary indexing sleeve 4 can be sleeved on the hoisting tool main body 1, and the rotary indexing sleeve 4 can circumferentially rotate on the hoisting tool main body 1 (cannot axially move relative to the hoisting tool main body 1, namely cannot move up and down). The rotary indexing sleeve 4 comprises an inner side surface and an outer side surface, a first control sliding groove is arranged on the inner side surface of the rotary indexing sleeve 4, and the first control sliding groove is in sliding fit with the tail end of the locking sliding block 3 (the tail end structure of the locking sliding block 3 can be assembled in the first control sliding groove and is in sliding fit with the first control sliding groove). The first control sliding chute is a smooth strip-shaped sliding chute structure, and the depth of the first control sliding chute gradually changes from one end of the first control sliding chute to the other end of the first control sliding chute. Through the limited number of structural design of designer to first control spout degree of depth, can make the cooperation structure between locking slider 3 and the gyration index sleeve 4 as follows: locking slider 3 under the shallow end fit state with first control spout, locking slider 3's head end is for the medial surface protrusion of inner frame body 2, locking slider 3 with the deep end fit state of first control spout under, locking slider 3's head end withdraws for the medial surface of inner frame body 2. In the utility model, the sliding fit between the first control runner and the locking slide 3 is realized by rotating the rotary indexing sleeve 4.

The utility model is provided with a rotary indexing sleeve 4, a first control chute is arranged on the inner side surface of the rotary indexing sleeve 4, and the locking slide block 3 can slide on the inner frame body 2 by rotating the rotary indexing sleeve 4. The utility model also provides a sliding sleeve 5, the sliding sleeve 5 is a cylindrical structure, the sliding sleeve 5 is sleeved outside the rotary indexing sleeve 4 and is used for controlling the rotation of the rotary indexing sleeve 4 (specifically, the up-and-down movement of the sliding sleeve 5 is converted into the rotation movement of the rotary indexing sleeve 4).

Specifically, the sliding sleeve 5 can slide in a reciprocating manner along the direction of the central axis of the inner frame body 2, the sliding sleeve 5 is in sliding fit with the rotary indexing sleeve 4 and is used for controlling the rotation control of the rotary indexing sleeve 4, when the sliding sleeve 5 slides down to the limit position, the rotary indexing sleeve 4 rotates, the shallow end of the first control sliding groove corresponds to the tail end of the locking sliding head, and when the sliding sleeve 5 slides up to the limit position, the rotary indexing sleeve 4 rotates, and the deep end of the first control sliding groove corresponds to the tail end of the locking sliding head.

In order to ensure the reliability (firmness degree) of clamping the mushroom head by the locking slide blocks 3, the utility model designs at least two locking slide blocks 3, and all the locking slide blocks 3 are arranged around the central axis of the inner frame body 2 at equal intervals.

Preferably, in one embodiment of the present invention, three locking sliders 3 are provided in the same plane, and the three locking sliders 3 are spaced apart by 120 °.

A plurality of first control chutes are arranged on the inner side surface of the rotary indexing sleeve 4, and the first control chutes and the locking slide blocks 3 are arranged in a one-to-one correspondence manner. When the locking slide 3 is provided with three, the first control runner is also provided with three.

The rotary indexing sleeve 4 is rotatably arranged at the bottom of the lifting appliance main body 1 and is particularly sleeved on the outer side of the inner frame body 2, the rotary indexing sleeve 4 can rotate relative to the lifting appliance main body 1, and meanwhile, the rotary indexing sleeve 4 can also be fixed and does not move in the axial direction relative to the lifting appliance main body 1. In order to realize the reliable installation of the rotary indexing sleeve 4 on the lifting appliance main body 1, the utility model carries out the structural design on the rotary indexing sleeve 4: the rotary indexing sleeve 4 comprises an upper mounting plate 41, a lower mounting plate 42 and a rotary sleeve body 43, the upper mounting plate 41 and the lower mounting plate 42 are arranged at intervals and fixedly arranged (the fixing mode can be arbitrary, for example, the upper mounting plate and the lower mounting plate are fixedly connected by screws and threads) on the inner frame body 2, and the rotary sleeve body 43 is in rotary fit with the upper mounting plate 41 and the lower mounting plate 42. Wherein the first control chute is arranged on the rotary sleeve body 43.

Fixed inner frame body 2 that has set up in hoist main part 1's bottom, the upper end of support body 2 including the fixed setting of last mounting disc 41, the lower extreme of support body 2 including the fixed setting of lower mounting disc 42, the downside at last mounting disc 41, all be provided with annular recess on the last side of lower mounting disc 42 and the upper and lower both ends face of the rotary sleeve body 43, recess on the rotary sleeve body 43 sets up with last mounting disc 41 and the recess on the lower mounting disc 42 relatively, install the ball in the recess, thereby can realize the rotary sleeve body 43 at last mounting disc 41 and the rotatable installation between the mounting disc 42 down.

Therefore, the head end of the locking slide block 3 is in a locking state (the head end of the locking slide block 3 slides out relative to the inner frame body 2) before the mushroom head structure is clamped, the head end of the locking slide block 3 is abutted to the outer surface of the mushroom head in the process of clamping the mushroom head, so that the locking slide block 3 is unfolded through the mushroom head structure, and then the locking slide block 3 is pushed out through the matching of the sliding sleeve 5 and the rotary indexing sleeve 4 in the hoisting process, so that the bottom of the mushroom head is clamped.

In order to improve the smoothness of the contact between the locking slide block 3 and the mushroom head structure and ensure that the locking slide block 3 can be smoothly spread, the utility model limits that: the head end of the locking slide block 3 is of a smooth convex curved surface structure.

In order to improve the smoothness of sliding between the locking slide block 3 and the first control chute, the tail end of the locking slide block 3 is provided with a roller 6 which is in rolling fit with the first control chute. Specifically, a mounting groove is formed in the tail end of the locking slider 3, the roller 6 is rotatably arranged in the mounting groove, and the outer circular surface of the roller 6 is arranged in a protruding mode relative to the tail end of the locking slider 3.

In one embodiment of the present invention, the hanger main body 1 is a cylindrical structure, the inner frame body 2 is a cylindrical structure, and the inner frame body 2 and the hanger main body 1 are coaxially disposed. A flange plate is arranged at the top end of the hanger main body 1. In addition, the utility model is also provided with a hoisting pulley block, and the hoisting pulley block is detachably connected with the flange plate. Can be connected with the overhead traveling crane through hawsers through the hoisting pulley block.

Specifically, hoist and mount assembly pulley is including mount pad 7, and mount pad 7 is metal mount pad 7, specifically is steel mount pad 7. A pulley 8 is arranged on the mounting seat 7 through a wheel shaft. The pulleys 8 are made of steel, at least two pulleys 8 are arranged, and all the pulleys 8 are coaxially arranged in parallel. The mounting seat 7 is detachably connected with the flange plate through bolts.

The sliding sleeve 5 is mounted on the hanger main body 1 to be capable of moving up and down, and the up-and-down movement of the sliding sleeve can be converted into the rotation movement of the rotary indexing sleeve 4 through the second control sliding groove. The sliding sleeve 5 only can slide up and down on the lifting appliance main body 1 and cannot rotate circumferentially relative to the lifting appliance main body 1, and therefore the sliding sleeve 5 is provided with the linear limiting groove 9, and the limiting block is fixedly arranged relative to the lifting appliance main body 1 and is in sliding fit with the limiting groove and used for limiting the sliding sleeve 5 to slide linearly relative to the lifting appliance main body 1. In addition, the outer side surface of the rotary indexing sleeve 4 is provided with a second control chute, the sliding sleeve 5 is provided with a conversion block which is in sliding fit with the second control chute, and the up-and-down sliding of the sliding sleeve 5 is converted into the circumferential rotation of the rotary indexing sleeve 4 through the sliding fit of the conversion block and the second control chute.

The utility model provides a multifunctional lifting appliance which comprises a lifting appliance main body 1, a rotary indexing sleeve 4 and a sliding sleeve 5. The bottom of hoist main part 1 is provided with inner frame body 2, is provided with locking slider 3 on inner frame body 2's lateral wall slidable, and locking slider 3 can be at the reciprocal slip of the central axis direction of inner frame body 2 in the perpendicular to. The rotary indexing sleeve 4 can rotate circumferentially on the lifting appliance main body 1, a first control sliding groove is arranged on the inner side face of the rotary indexing sleeve 4, the first control sliding groove is in sliding fit with the tail end of the locking sliding block 3, and the depth of the first control sliding groove gradually changes from one end of the first control sliding groove to the other end of the first control sliding groove. The sliding sleeve 5 can slide in a reciprocating manner along the direction of the central axis of the inner frame body 2, and the sliding sleeve 5 is in sliding fit with the rotary indexing sleeve 4 and is used for controlling the rotation of the rotary indexing sleeve 4.

The utility model aims to provide a lifting appliance device with small volume and light weight and large lifting weight range. The utility model has the advantages of small volume, light weight, large hoisting range and the like.

It will be appreciated by those skilled in the art that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the utility model are intended to be embraced therein.

Claims

1. A multifunctional lifting appliance is characterized by comprising:

the lifting appliance comprises a lifting appliance main body (1), wherein an annular inner frame body (2) is arranged at the bottom end of the lifting appliance main body, the inner frame body is provided with a clamping and accommodating space, a locking slide block (3) is slidably arranged on the side wall of the inner frame body, the locking slide block can slide in a reciprocating manner in the direction vertical to the central axis of the inner frame body, and the head end of the locking slide block can slide out relative to the inner side surface of the inner frame body;

a rotary indexing sleeve (4) sleeved on the hanger main body, wherein the rotary indexing sleeve can circumferentially rotate on the hanger main body, a first control sliding groove is formed in the inner side surface of the rotary indexing sleeve, the first control sliding groove is in sliding fit with the tail end of the locking slide block, the depth of the first control sliding groove gradually changes from one end of the first control sliding groove to the other end of the first control sliding groove, the head end of the locking slide block protrudes relative to the inner side surface of the inner frame body when the locking slide block is in a state of being matched with the shallow end of the first control sliding groove, and the head end of the locking slide block retracts relative to the inner side surface of the inner frame body when the locking slide block is in a state of being matched with the deep end of the first control sliding groove;

the cover is located the outside cover of gyration index sleeve is equipped with sliding sleeve (5), the sliding sleeve can be followed reciprocal slip in the central axis direction of inner support body, the sliding sleeve with gyration index sleeve sliding fit, be used for control gyration index sleeve's rotation control, the sliding sleeve gliding to extreme position the gyration index sleeve is rotatory the shallow end of first control spout corresponds with the tail end of locking slippery head, when the sliding sleeve slides to extreme position on the gyration index sleeve rotatory the deep end of first control spout corresponds with the tail end of locking slippery head.

2. The multi-functional spreader of claim 1,

the number of the locking sliding blocks is at least two, and all the locking sliding blocks are arranged around the central axis of the inner frame body at equal intervals;

the inner side surface of the rotary indexing sleeve is provided with a plurality of first control chutes, and the first control chutes and the locking sliding blocks are arranged in a one-to-one correspondence manner.

3. The multi-functional spreader of claim 2,

the rotary indexing sleeve comprises an upper mounting disc (41), a lower mounting disc (42) and a rotary sleeve body (43);

the upper mounting disc and the lower mounting disc are arranged at intervals and are fixedly arranged on the inner frame body;

the rotary sleeve body is matched with the upper mounting disc and the lower mounting disc in a rotating mode;

the first control chute is arranged on the rotary sleeve body.

4. The multi-functional spreader of claim 1,

the head end of the locking slide block is of a smooth convex curved surface structure.

5. The multi-functional spreader of claim 4,

and the tail end of the locking sliding block is provided with a roller (6) which is in rolling fit with the first control sliding groove.

6. The multi-functional spreader of claim 5,

the tail end of the locking slide block is provided with an installation groove, and the roller is rotatably arranged in the installation groove;

the outer circular surface of the roller is arranged in a protruding mode relative to the tail end of the locking sliding block.

7. The multi-functional spreader of claim 1,

the lifting appliance main body is of a cylindrical structure, the inner frame body is of a cylindrical structure, and the inner frame body and the lifting appliance main body are coaxially arranged.

8. The multi-functional spreader of claim 7,

a flange plate is arranged at the top end of the hanger main body;

the flange plate is detachably connected with the lifting pulley block.

9. The multi-functional spreader of claim 8,

the hoisting pulley block comprises a mounting seat (7), and a pulley (8) is arranged on the mounting seat through a wheel shaft;

the number of the pulleys is at least two;

the mounting seat and the flange plate are detachably connected through bolts.

10. The multi-functional spreader of claim 1,

a linear limiting groove (9) is formed in the sliding sleeve, a limiting block is fixedly arranged relative to the lifting appliance main body, and the limiting block is in sliding fit with the limiting groove and used for limiting the sliding sleeve to linearly slide relative to the lifting appliance main body;

and a second control sliding groove is formed in the outer side surface of the rotary indexing sleeve, a conversion block in sliding fit with the second control sliding groove is arranged on the sliding sleeve, and the up-and-down sliding of the sliding sleeve is converted into the circumferential rotation of the rotary indexing sleeve through the sliding fit of the conversion block and the second control sliding groove.