CN111320097A

CN111320097A - Square hoisting air cushion and hoisting assembly comprising same

Info

Publication number: CN111320097A
Application number: CN201811526192.4A
Authority: CN
Inventors: 熊雪辉; 王春龙; 谢建藩; 谢霖东
Original assignee: Zhuzhou Feima Rubber Industry Co ltd
Current assignee: Zhuzhou Feima Rubber Industry Co ltd
Priority date: 2018-12-13
Filing date: 2018-12-13
Publication date: 2020-06-23

Abstract

The invention discloses a square hoisting air cushion, which comprises a support bag and an inner container inside the support bag, wherein the support bag is of a square structure, the shape of the inner container is the same as that of the support bag, the inner wall of the support bag is connected with the outer wall of the inner container in a vulcanization mode, an inflating valve is arranged on the inner container, an outlet for the inflating valve to extend out is arranged on the support bag, the support bag is of an integral bag body structure, and the support bag sequentially comprises a plurality of layers of rubber layers and cord fabrics from outside to inside; the invention also comprises a hoisting assembly comprising the square hoisting air cushion. Through structural improvement, the invention not only can realize smaller embedding height, quick operation, light weight, almost no maintenance, long service life, but also has higher hoisting height and wider application range.

Description

Square hoisting air cushion and hoisting assembly comprising same

Technical Field

The invention relates to air hoisting equipment, in particular to a square hoisting air cushion and a hoisting assembly comprising the same.

Background

Although many hoisting devices, such as hydraulic cylinders, jacks and the like, have been disclosed in the prior art, these hoisting devices are usable when the distance between the load-bearing object and the bearing surface is large, and when the distance between the load-bearing object and the bearing surface is small, these hoisting devices are difficult to enter between the load-bearing object and the bearing surface, and thus the hoisting effect is difficult to achieve. Along with the development of science and technology, some jack-up gasbags have appeared on the market now, and current jack-up gasbag mainly has cylindric jack-up gasbag main part, bar jack-up gasbag main part, and its top is transition cone or hemisphere, nevertheless receives its structure to restrict, and its structural design is unreasonable, and jack-up gasbag main part structural strength is low, and in the operation of aerifing, jack-up gasbag main part atress is inhomogeneous, under the heavy pressure effect of jack-up load, the gasbag main part easily causes the swell, bursts even, uses and receives the restriction.

Although some square hoisting air cushions are disclosed in the prior art, the existing square air bags cannot realize higher bearing capacity, the hoisting height is also in a smaller range, the application range is limited, and further improvement is needed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a square hoisting air cushion and a hoisting assembly comprising the same.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a square jack-up air cushion, includes the inside inner bag of support bag and support bag, the support bag is square structure, the inner bag is the same with the shape of support bag, and support bag inner wall is connected through the vulcanization mode with the inner bag outer wall, is equipped with the inflating valve on the inner bag, is equipped with the export that supplies the inflating valve to stretch out on the support bag, and the support bag is integral utricule structure, and the support bag includes multilayer rubber layer and casing ply from outer to interior in proper order.

As a further improvement of the above technical solution: the multilayer rubber layer and the cord fabric layer specifically comprise a first rubber layer, four cord fabric layers and a second rubber layer which are bonded with each other from inside to outside.

Furthermore, adjacent two plies of cord fabrics in the four plies of cord fabrics which are bonded are arranged and distributed in a mutually vertical mode, and the four plies of cord fabrics are composed of two cord fabrics.

Furthermore, the material of the inner container is the same as that of the inner tube of the existing automobile tire.

Further, when the side length of the supporting bag is 150-300mm, the sum of the thicknesses of the supporting bag and the inner container is not more than 23 mm; when the side length of the supporting bag is 301-900mm, the sum of the thicknesses of the supporting bag and the inner container is not more than 26 mm.

Further, 0.6MPa of compressed air or water is filled into the inner container, the maximum height of the support bag which is expanded when the weight of 1.5 tons is jacked up is not less than 100mm, and the total height of the support bag which is expanded when the weight is unloaded is not less than 180 mm.

Furthermore, the outer wall of the supporting bag is provided with an anti-skid bulge.

A hoisting assembly comprises the square hoisting air cushion and an adapter plate, wherein a connecting piece detachably connected with the adapter plate is arranged on the square hoisting air cushion.

As a further improvement of the above technical solution: the connecting piece is a bolt, the bolt is connected with the first rubber layer through a cord, the middle of the cord is spirally wound on the rod part of the bolt, two ends of the cord are laid on the outermost ply, and the cord wound on the bolt and the cord at the ends are connected with the first rubber layer through vulcanization; the head of the bolt is fixed in the middle of the first rubber layer.

Furthermore, the number of the adapter plates is one or two, when the number of the adapter plates is two, the two adapter plates are respectively and symmetrically arranged on two sides of the square hoisting air cushion, and the number of the bolts on the single-side adapter plate is 2-4.

Compared with the prior art, the invention has the advantages that:

1. according to the square lifting air cushion, the inner containers which are independently used for inflating are arranged in the supporting bag, so that the inner containers can ensure that gas is not easy to overflow from the square lifting air cushion, the lifting height can be ensured not to change for a long time, the inflation uniformity of each part of the square lifting air cushion can be ensured to be higher, and better inflation and plump effects can be achieved especially at the side edges and corners; by arranging the supporting bag with the six-layer structure outside the inner container, the supporting strength of the supporting bag can be ensured to be higher, larger load can be borne, and the phenomena of bulging, bursting and the like are not easy to occur;

2. the square hoisting air cushions are small in thickness and size, small in embedding height (the height can be used when being more than 30mm), fast to operate, light in weight (the weight is about 2kg when the specification is 300 x 22 mm), almost free of maintenance, long in service life, and very convenient to apply to the condition that the distance between a load bearing object and a load bearing surface is small.

3. The hoisting assembly adopts the square hoisting air cushion and the adapter plate, so that the hoisting assembly can be conveniently used under the conditions of harsh environments, such as uneven upper bottom surface of a bearing surface or uneven lower bottom surface of a bearing object, and the like, so that the square air cushion is prevented from being punctured, a good hoisting effect is ensured, and the hoisting height is controllable;

4. the connecting piece in the hoisting assembly adopts the bolt and the cord, the middle part of the cord is wound on the rod part of the bolt, and the cord is vulcanized and connected with the first rubber layer, so that the connection between the connecting piece and the square hoisting air cushion can be ensured to be tight, and the connecting piece is not easy to fall off;

5. compared with the traditional hoisting equipment, the square hoisting air cushion has more obvious advantages, such as smaller embedded height (about 30mm), quick operation, light weight (300 x 22mm specification is about 2kg), almost no maintenance, long service life, and is mainly suitable for hoisting, moving, disassembling, fixing and other purposes; the lifting air bags with different specifications can be selected according to different lifting requirements, when compressed air of 6-8 bar is filled into the square lifting air cushion, the square lifting air cushion can be expanded to lift weights of several tons to dozens of tons, and can be stably kept in the state for a long time, the state is a working state, the operation is safe and reliable, the square lifting air cushion can be repeatedly used, and the height of the square lifting air cushion in a non-working state is less than 23mm, so that the application field of the square lifting air cushion is wider.

Drawings

FIG. 1 is an enlarged cross-sectional view of the square jacking-mattress of the present invention;

FIG. 2 is a front view of the square jacking-mattress of the present invention;

fig. 3 is a schematic structural view of the lifting assembly of the present invention.

Illustration of the drawings:

1. a support cell; 11. a first rubber layer; 12. a ply layer; 13. a second rubber layer; 14. anti-skid projections; 2. an inner container; 3. an air valve; 4. a square hoisting air cushion; 5. an adapter plate; 6. a connecting member.

Detailed Description

In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.

As shown in fig. 1 and 2, a square hoisting air cushion comprises a supporting bag 1 and an inner container 2 inside the supporting bag 1, wherein the supporting bag 1 is of a square structure, the inner container 2 is the same as the supporting bag 1 in shape, the inner wall of the supporting bag 1 is connected with the outer wall of the inner container 2 in a vulcanization mode, an inflating valve 3 is arranged on the inner container 2, an outlet for the inflating valve 3 to extend out is formed in the supporting bag 1, the supporting bag 1 is of an integral bag body structure, and the supporting bag 1 sequentially comprises a plurality of rubber layers and a plurality of cord fabric layers from outside to inside.

In this embodiment, the multi-layer rubber layer and ply specifically includes, from inside to outside, a first rubber layer 11, a four-layer ply 12 and a second rubber layer 13 bonded to each other. In this embodiment, the adjacent two plies 12 of the four ply plies 12 are arranged and distributed perpendicularly to each other, and the four ply plies 12 are composed of two plies.

In this embodiment, the material of the inner tube 2 is the same as that of the inner tube of the existing automobile tire.

In the embodiment, the sum of the thicknesses of the supporting bag 1 and the inner container 2 is 23 mm.

In this embodiment, the outer dimension of the support cell 1 is 300 × 300 mm.

In the embodiment, 0.6Mpa of compressed air is filled into the inner container 2, and the height of the support bag 1 which is expanded when a weight of 1.5 tons is jacked up is 114mm, so that the application requirement is met.

In this embodiment, the outer wall of the support bag 1 is provided with anti-slip protrusions 14.

As shown in fig. 3, a hoisting assembly comprises the square hoisting air cushion 4 and the adapter plate 5, wherein the square hoisting air cushion 4 is provided with a connecting piece 6 detachably connected with the adapter plate 5.

In the embodiment, the connecting piece 6 is a bolt, the bolt is connected with the first rubber layer 11 through a cord, the middle part of the cord is spirally wound on the rod part of the bolt, two end parts of the cord are laid on the outermost ply, and the cord wound on the bolt and the cord at the end parts are connected with the first rubber layer 11 through vulcanization; the head of the bolt is fixed in the middle of the first rubber layer 11.

In this embodiment, the number of the adapter plate 5 is one, and the number of the bolts on the adapter plate 5 is two.

Claims

1. A square hoisting air cushion is characterized in that: including supporting bag (1) and supporting bag (1) inside inner bag (2), supporting bag (1) is square structure, inner bag (2) are the same with the shape that supports bag (1), support bag (1) inner wall and inner bag (2) outer wall and pass through the vulcanization mode and be connected, are equipped with inflating valve (3) on inner bag (2), are equipped with the export that supplies inflating valve (3) to stretch out on supporting bag (1), support bag (1) and be integral utricule structure, support bag (1) from outer to interior multilayer rubber layer and the casing ply of including in proper order.

2. The square lifting air mattress of claim 1, wherein: the multilayer rubber layer and the cord fabric layer specifically comprise a first rubber layer (11), four cord fabric layers (12) and a second rubber layer (13) which are bonded with each other from inside to outside.

3. The square lifting air mattress of claim 2, wherein: the adjacent two layers of cord fabrics (12) in the four layers of cord fabrics (12) which are mutually bonded are arranged and distributed in a mutually vertical way, and the four layers of cord fabrics (12) are composed of two cord fabrics.

4. The square lifting air mattress of any of claims 1-3, wherein: the material of the inner container (2) is the same as that of the inner tube of the existing automobile tire.

5. The square lifting air mattress of any of claims 1-3, wherein: when the side length of the supporting bag (1) is 150-300mm, the sum of the thicknesses of the supporting bag (1) and the inner container (2) is not more than 23 mm; when the side length of the supporting bag (1) is 301-900mm, the sum of the thicknesses of the supporting bag (1) and the inner container (2) is not more than 26 mm.

6. The square lifting air mattress of any of claims 1-3, wherein: 0.6MPa of compressed air or water is filled into the inner container (2), the maximum height of the support bag (1) during jacking of 1.5 tons of heavy objects is not less than 100mm, and the total height of the support bag during no-load bulging is not less than 180 mm.

7. The square lifting air mattress of any of claims 1-3, wherein: the outer wall of the supporting bag (1) is provided with an anti-skid bulge (14).

8. A lifting assembly, characterized by: comprising a square lifting air cushion (4) according to any of claims 1-7 and an adapter plate (5), wherein the square lifting air cushion (4) is provided with a connecting piece (6) detachably connected with the adapter plate (5).

9. The lift assembly of claim 8, wherein: the connecting piece (6) is a bolt, the bolt is connected with the first rubber layer (11) through a cord, the middle part of the cord is spirally wound on the rod part of the bolt, two end parts of the cord are laid on the outermost ply, and the cord wound on the bolt and the cord at the end parts are connected with the first rubber layer (11) through vulcanization; the head of the bolt is fixed in the middle of the first rubber layer (11).

10. A lifting assembly as claimed in claim 8 or 9, wherein: the number of the adapter plates (5) is one or two, and when the number of the adapter plates (5) is two, the two adapter plates (5) are respectively and symmetrically arranged at two sides of the square hoisting air cushion (4).