Oversized key type inflatable sleeve

Abstract

The utility model discloses an oversized key type air expansion sleeve which comprises a main installation assembly, auxiliary fixing assemblies are arranged on the two end faces of the main installation assembly, and a center installation hole is formed in the main installation assembly. A plurality of auxiliary limiting assemblies which are circumferentially distributed are arranged on the side wall of the center mounting hole in the main mounting assembly, vent holes are formed in the auxiliary limiting assemblies, a plurality of long round holes which are circumferentially distributed are formed in the main mounting assembly, and inflatable assemblies are arranged in the long round holes; an outer mounting groove is formed in the outer side wall of the main mounting assembly, and a reset assembly is arranged in the outer mounting groove. The oversized key type air expansion sleeve has the advantages that the oversized key type air expansion sleeve is ingenious in structural design, high in practicability and convenient to install, a large-size work object roller can be rapidly tensioned and fixed by means of the key type air expansion sleeve, and the convenience of tensioning and fixing the large-size work object roller is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air inflatable sleeves, in particular to an oversized key-type air inflatable sleeve. Background Art

[0002] At present, the main form of air shaft is used to fix the rolled workpiece on the winding and unwinding equipment. The expansion / contraction of the air shaft facilitates the rapid loading and unloading of the rolled workpiece. However, when encountering some special sizes of rolled workpieces, they may not match the size of the air shaft on the original equipment. In this case, an air sleeve can be used for connection and fixation.

[0003] On general rewinding and unwinding equipment, the outer diameter of the air shaft used to fix the workpiece is determined when the equipment leaves the factory. If the inner size of the special workpiece reel does not match the size of the air shaft on the original equipment, the conversion can be achieved by adding an air sleeve. The air sleeves currently available on the market have a complex structure, are inconvenient to operate, and have an unstable working process, and are not suitable for large-size products. For this reason, an oversized key-type air sleeve is designed. Utility Model Content

[0004] The utility model aims to solve the above problems and designs an oversized key-type inflatable sleeve.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is a kind of oversized key-type air expansion sleeve, including a main mounting component, the main mounting component is provided with auxiliary fixing components on both end surfaces, the main mounting component is provided with a central mounting hole, the side wall of the main mounting component located at the central mounting hole is provided with a plurality of auxiliary limiting components distributed in a circle, the auxiliary limiting components are provided with ventilation holes, the main mounting component is provided with a plurality of oblong holes distributed in a circle, the oblong hole is provided with an air expansion component, the outer side wall of the main mounting component is provided with an outer mounting groove, and the outer mounting groove is provided with a reset component.

[0006] As a further description of the technical solution, the main installation component includes a main installation sleeve, and auxiliary fixing components are arranged on both end surfaces of the main installation sleeve, and an outer installation groove is arranged on the outer side of the main installation sleeve.

[0007] As a further description of the technical solution, the auxiliary fixing assembly includes a first fixing member arranged on both end surfaces of the main mounting assembly, a second fixing member is arranged on the first fixing member, and a plurality of auxiliary mounting grooves distributed in a circular pattern are arranged on the inner walls of the first fixing member and the second fixing member.

[0008] As a further description of the technical solution, the auxiliary limiting assembly includes an auxiliary limiting groove arranged on the side wall of the central mounting hole on the main mounting assembly, and a vent hole is arranged in the auxiliary limiting groove.

[0009] As a further description of the technical solution, the gas expansion assembly includes a gas expansion sleeve key arranged in the oblong hole, the oblong hole is connected to the vent hole, and the gas expansion sleeve key is movably arranged in the oblong hole.

[0010] As a further description of the technical solution, the reset assembly includes a reset spring sleeve arranged in the outer mounting groove, and the reset spring sleeve is sleeved on the outside of the gas expansion assembly.

[0011] As a further description of the technical solution, a plurality of circumferentially distributed steel ball rollers are provided on the outer side wall of the main mounting assembly and located on one side of the outer mounting groove.

[0012] The beneficial effect is that the extra-large key-type air expansion sleeve of the technical solution has an ingenious structural design, strong practicality, and is easy to install. Using this key-type air expansion sleeve, large-sized workpiece rollers can be quickly tightened and fixed, effectively improving the convenience of tightening and fixing large-sized workpiece rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the key-type inflatable sleeve of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model of the gas expansion sleeve key in the retracted state;

[0016] Figure 4 It is a structural schematic diagram of the utility model in which the inflatable sleeve key is in an extended state.

[0017] In the figure, 1. main mounting assembly; 2. auxiliary fixing assembly; 3. center mounting hole; 4. auxiliary limiting assembly; 5. vent hole; 6. oblong hole; 7. gas expansion assembly; 8. outer mounting groove; 9. reset assembly; 10. main mounting sleeve; 11. first fixing piece; 12. second fixing piece; 13. auxiliary mounting groove; 14. auxiliary limiting groove; 15. gas expansion sleeve key; 16. reset spring sleeve; 17. steel ball roller. DETAILED DESCRIPTION

[0018] First of all, the original intention of the design of the utility model is explained. Generally, on the reeling and unwinding equipment, the outer diameter of the air shaft used to fix the workpiece is determined when the equipment leaves the factory. If the inner size of the special workpiece reel does not match the size of the air shaft on the original equipment, the conversion can be achieved by adding an air sleeve. The air sleeves currently available on the market have a complex structure, are inconvenient to operate, and have an unstable working process, and are not suitable for large-size products. Therefore, the utility model designs an oversized key-type air sleeve.

[0019] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1-Figure 4 As shown, an oversized key-type inflatable sleeve includes a main mounting component 1. The main mounting component 1 will be described in detail below. The main mounting component 1 includes a main mounting sleeve 10. Auxiliary fixing components 2 are provided on both end surfaces of the main mounting sleeve 10. An outer mounting groove 8 is provided on the outer side of the main mounting sleeve 10.

[0020] In order to facilitate fixing the main mounting component 1 on the inflatable shaft, auxiliary fixing components 2 are provided on both end surfaces of the main mounting component 1. The auxiliary fixing components 2 will be described in detail below. The auxiliary fixing components 2 include a first fixing member 11 provided on both end surfaces of the main mounting component 1, a second fixing member 12 is provided on the first fixing member 11, and a plurality of auxiliary mounting grooves 13 distributed in a circumference are provided on the inner walls of the first fixing member 11 and the second fixing member 12.

[0021] A central mounting hole 3 is provided on the main mounting component 1. In order to facilitate the limiting of the main mounting component 1 during the installation process, a plurality of auxiliary limiting components 4 distributed in a circular pattern are provided on the side wall of the central mounting hole 3 on the main mounting component 1. The auxiliary limiting components 4 will be described in detail below. The auxiliary limiting components 4 include auxiliary limiting grooves 14 provided on the side wall of the central mounting hole 3 on the main mounting component 1, and vent holes 5 are provided in the auxiliary limiting grooves 14.

[0022] A vent hole 5 is provided in the auxiliary limiting component 4 , and a plurality of oblong holes 6 distributed in a circumference are provided on the main mounting component 1 .

[0023] In order to facilitate the tightening of the rolled workpiece, an air expansion component 7 is arranged in the oblong hole 6. The air expansion component 7 will be described in detail below. The air expansion component 7 includes an air expansion sleeve key 15 arranged in the oblong hole 6. The oblong hole 6 is connected to the vent hole 5. The air expansion sleeve key 15 is movably arranged in the oblong hole 6.

[0024] In order to facilitate the installation of the reset assembly 9 , an outer installation groove 8 is provided on the outer side wall of the main installation assembly 1 .

[0025] In order to facilitate the resetting of the gas expansion component 7, a resetting component 9 is arranged in the outer mounting groove 8. The resetting component 9 will be described in detail below. The resetting component 9 includes a resetting spring sleeve 16 arranged in the outer mounting groove 8, and the resetting spring sleeve 16 is sleeved on the outside of the gas expansion component 7.

[0026] In addition, a plurality of steel ball rollers 17 distributed in a circumference are arranged on the outer side wall of the main mounting assembly 1 and located on one side of the outer mounting groove 8 .

[0027] The specific structure of the utility model is described in detail above. The working principle of the utility model is described below: when in use, according to different usage conditions, several inflatable sleeves can be installed on the inflatable shaft. The inflatable shaft passes through the central mounting hole 3 and the auxiliary limit assembly 4, and the inflatable sleeve is fixed to the inflatable shaft through the auxiliary fixing assembly 2. The inflatable shaft switch is turned on, the inflatable shaft is inflated, and the gas enters the oblong hole 6 through the vent hole 5, and then the inflatable sleeve key 15 is pushed out, and then the workpiece sleeved on the inflatable sleeve is supported and fixed. When the workpiece is removed, the inflatable shaft switch is turned off, the inflatable shaft is deflated, and the inflatable sleeve key 15 is retracted. The inflatable sleeve key 15 is retracted under the action of the reset spring sleeve 16. At this time, the workpiece can be removed smoothly. The oversized key-type inflatable sleeve of the technical solution has a clever structural design, strong practicality, and is easy to install. Using this key-type inflatable sleeve, large-sized workpiece rollers can be quickly tightened and fixed, which effectively improves the convenience of tightening and fixing large-sized workpiece rollers.

[0028] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. An oversized key-type inflatable sleeve, characterized in that: The invention comprises a main mounting component (1), wherein the main mounting component (1) is provided with auxiliary fixing components (2) at both end surfaces, the main mounting component (1) is provided with a central mounting hole (3), the side wall of the central mounting hole (3) on the main mounting component (1) is provided with a plurality of auxiliary limiting components (4) distributed in a circumferential manner, the auxiliary limiting components (4) are provided with vent holes (5), the main mounting component (1) is provided with a plurality of oblong holes (6) distributed in a circumferential manner, the oblong holes (6) are provided with air expansion components (7), the outer side wall of the main mounting component (1) is provided with an external mounting groove (8), and the external mounting groove (8) is provided with a reset component (9).

2. The oversized keyed inflatable sleeve according to claim 1, characterized in that: The main installation component (1) comprises a main installation sleeve (10), both end surfaces of the main installation sleeve (10) are provided with auxiliary fixing components (2), and the outer side of the main installation sleeve (10) is provided with an outer installation groove (8).

3. The oversized keyed inflatable sleeve according to claim 1, characterized in that: The auxiliary fixing component (2) comprises a first fixing member (11) arranged on both end surfaces of the main mounting component (1), a second fixing member (12) being arranged on the first fixing member (11), and a plurality of auxiliary mounting grooves (13) distributed in a circumferential manner are arranged on the inner walls of the first fixing member (11) and the second fixing member (12).

4. The oversized keyed inflatable sleeve according to claim 1, characterized in that: The auxiliary limiting assembly (4) comprises an auxiliary limiting groove (14) arranged on the side wall of the central mounting hole (3) on the main mounting assembly (1), and a vent hole (5) is arranged in the auxiliary limiting groove (14).

5. The oversized keyed inflatable sleeve according to claim 1, characterized in that: The gas expansion assembly (7) comprises a gas expansion sleeve key (15) arranged in the oblong hole (6); the oblong hole (6) is connected to the vent hole (5); and the gas expansion sleeve key (15) is movably arranged in the oblong hole (6).

6. The oversized keyed inflatable sleeve according to claim 1, characterized in that: The reset assembly (9) comprises a reset spring sleeve (16) arranged in the outer mounting groove (8), and the reset spring sleeve (16) is sleeved on the outside of the gas expansion assembly (7).

7. The oversized keyed inflatable sleeve according to claim 1, characterized in that: A plurality of steel ball rollers (17) distributed in a circumferential manner are arranged on the outer side wall of the main mounting assembly (1) and located on one side of the outer mounting groove (8).

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