Inflatable shaft with inflation nozzle

Abstract

The utility model relates to the technical field of inflatable shafts, and discloses an inflatable shaft with an inflation nozzle, which comprises a base, and an end sleeve and an inner shell are mounted in the base; a plurality of bases are installed on the outer surface of the air bag sleeve, and key bars are installed at the upper ends of the bases. The key bar is embedded in the inner shell, and the outer shell is installed at the upper end of the key bar through screws. The air bag sleeve is fixed on the outer shell, the base and the air inflation mechanism are installed at two ends of the outer shell, the air inflation mechanism comprises an air nozzle and an air pipe, the bottom end of the air pipe is fixed on the air bag sleeve, and the air nozzle is installed at the top end of the air pipe. And the air bag sleeve is pressed on the end sleeve and the air pipe through a hydraulic machine to prevent air in the air bag sleeve from leaking, so that the air tightness of the air bag sleeve is improved.

Description

Technical Field

[0001] This utility model relates to the field of air shaft equipment technology, specifically an air shaft with an air inlet. Background Technology

[0002] An air shaft is a specially designed winding and unwinding shaft. It's a shaft whose surface bulges after being inflated by high pressure and quickly retracts after deflating. To use it, simply inflate the shaft with an air gun pointed at the nozzle. It holds the external component (such as a round paper tube). To release the paper, simply press the nozzle upwards and slide the external component (such as the round paper tube) to remove it. It has a wide range of applications. However, existing air shafts cannot directly adjust the axial distance during use. Therefore, if the timing belt shifts during winding, it can lead to unstable transmission, making adjustment and maintenance inconvenient.

[0003] Application number CN201721470617.5 discloses an adjustable air shaft, including a housing. End sleeves are fixed to both ends of the housing, and support rods are radially distributed on the inner end faces of the end sleeves. The inner ends of the two support rods are fixedly connected via a distribution box. This adjustable air shaft has a simple structure and is easy to install. The air-filled sleeves inflate and expand, effectively protruding the shaft key for material feeding and winding operations. It is convenient to use. The plates coaxial with the shaft key are connected in parallel via a connecting shaft, improving the linkage of the shaft key and preventing material deviation during operation. The positioning shaft and air inlet pipe can rotate and move independently within the positioning seat and distribution box. When the synchronous belt deviates, the relative position of the housing can be adjusted by adjusting the positions of the positioning shaft and air inlet pipe, ensuring the normal operation of the winding machine. An elastic sealing ring improves the overall airtightness, ensuring stable pressure of the air-filled sleeve and making it more convenient to use.

[0004] However, there are shortcomings. The key strip is directly installed on the outer surface of the airbag sleeve. The rough key strip may tear the airbag sleeve during use, causing gas leakage and failing to achieve the working effect. In addition, the end sleeve is directly connected to the airbag sleeve, which may lead to insufficient air tightness and gas leakage. Utility Model Content

[0005] The purpose of this invention is to provide an air shaft with an inflation nozzle to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an air shaft with an inflation nozzle, comprising a base, characterized in that: an end sleeve and an inner shell are installed inside the base; an air bladder sleeve is installed on the upper end of the end sleeve, and several sets of bases are installed on the outer surface of the air bladder sleeve, with a key strip installed on the upper end of the base; the key strip is embedded inside the inner shell, and an outer shell is installed on the upper end of the key strip by screws; a base and an inflation mechanism are installed at both ends of the outer shell, the inflation mechanism comprising an air nozzle and an air tube, the bottom end of the air tube being fixed to the air bladder sleeve, and the top end being equipped with an air nozzle.

[0008] Furthermore, the base cavity is connected to the end sleeve by a thread, and one end of the end sleeve is press-fitted onto the outer surface of the end sleeve by a hydraulic press.

[0009] Furthermore, the inner shell is connected to the base cavity by a number of screws, and the upper surface of the inner shell is provided with a number of openings so that the key strip is embedded inside the inner shell.

[0010] Furthermore, a base is installed on the upper surface of the airbag sleeve, and a key strip is fixed to the upper end of the base by screws.

[0011] Furthermore, the inflation mechanism includes an air nozzle and an air tube, one end of which is press-fitted to one end of the airbag sleeve by a hydraulic press, and the air nozzle is installed at one end of the air tube.

[0012] Furthermore, the upper end of the key bar is connected to the outer casing by screws.

[0013] This utility model has the following beneficial effects:

[0014] (1) This utility model uses the expansion of the airbag sleeve to push the base to make the key strip extend and retract. The base fits into the airbag sleeve, which can effectively prevent damage to the outer surface of the airbag sleeve, thereby increasing the service life of the airbag sleeve.

[0015] (2) This utility model uses a hydraulic press to press the airbag sleeve onto the end sleeve and air tube to prevent gas leakage in the airbag sleeve, thereby increasing the airtightness of the airbag sleeve.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the axial surface structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the key bar structure of this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Base; 101. End sleeve; 2. Inflation mechanism; 201. Air nozzle; 202. Air tube; 3. Outer shell; 4. Airbag sleeve; 5. Inner shell; 6. Key bar; 7. Base; 8. Screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 4 As shown, this utility model is an air shaft with an inflation nozzle, including a base 1, an end sleeve 101 and an inner shell 5 installed inside the base 1; an airbag sleeve 4 is installed on the upper end of the end sleeve 101, and several sets of bases 7 are installed on the outer surface of the airbag sleeve 4, and a key bar 6 is installed on the upper end of the base 7; the key bar 6 is embedded in the inner shell 5, and an outer shell 3 is installed on the upper end of the key bar 6 by screws 8; the base 1 and an inflation mechanism 2 are installed at both ends of the outer shell 3, and the inflation mechanism 2 includes an air nozzle 201 and an air pipe 202, the bottom end of the air pipe 202 is fixed on the airbag sleeve 4, and the top end is equipped with the air nozzle 201.

[0026] The purpose of this setup is to fix the base 1 in the working area, and use an air pump to inject gas into the airbag sleeve 4 through the air nozzle 201 and air pipe 202, so that the airbag sleeve 4 expands and pushes the base 7, so that the key bar 6 on the base 7 is pushed outward, thereby extending the outer shell 3 and fixing the workpiece on the air shaft.

[0027] The base 1 cavity is connected to the end sleeve 101 by a thread. One end of the end sleeve 101 is press-fitted onto the outer surface of the end sleeve 101 by a hydraulic press.

[0028] The purpose of this design is to press the airbag sleeve 4 onto the end sleeve 101 using a hydraulic press to increase airtightness and prevent gas leakage from the airbag sleeve 4.

[0029] The inner shell 5 is connected to the cavity of the base 1 by a number of screws 8. The upper surface of the inner shell 5 has a number of openings so that the key strip 6 can be embedded inside the inner shell 5.

[0030] The purpose of this design is to embed the key bar 6 inside the inner shell 5 to control the extension and retraction of the key bar 6, and to prevent excessive air pressure from causing the key bar 6 to stretch too much and thus damage the workpiece.

[0031] A base 7 is installed on the upper surface of the airbag sleeve 4, and a key strip 6 is fixed to the upper end of the base 7 by screws 8.

[0032] The purpose of this design is to use the expansion of the airbag sleeve 4 to push the base 7, thereby causing the key bar 6 to extend and retract. By using the base 7 to fit against the airbag sleeve 4, damage to the outer surface of the airbag sleeve 4 can be effectively prevented, thus increasing the service life of the airbag sleeve 4.

[0033] The inflation mechanism 2 includes an air nozzle 201 and an air tube 202. One end of the air tube 202 is pressed onto one end of the airbag sleeve 4 by a hydraulic press. The air nozzle 201 is installed at one end of the air tube 202. The upper end of the key bar 6 is connected to the outer shell 3 by a screw 8.

[0034] The purpose of this design is to increase air tightness by pressing the air pipe 202 onto one end of the airbag sleeve 4 using a hydraulic press, thus preventing gas leakage after entering the airbag sleeve 4 from the air nozzle 201.

[0035] In use, the base 1 is fixed in the working area, and the air is pumped into the airbag sleeve 4 through the air nozzle 201 and air pipe 202 using the air pumping device. This causes the airbag sleeve 4 to expand and push the base 7, which in turn pushes the key bar 6 on the base 7 outward, thereby extending the outer shell 3 and fixing the workpiece on the air shaft.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An air-expanding shaft with an inflation nozzle, comprising a base (1), characterized in that: The base (1) is internally fitted with an end sleeve (101) and an inner shell (5); An airbag sleeve (4) is installed on the upper end of the end sleeve (101), and several sets of bases (7) are installed on the outer surface of the airbag sleeve (4). A key bar (6) is installed on the upper end of the base (7). The key bar (6) is embedded inside the inner shell (5), and the outer shell (3) is installed on the upper end of the key bar (6) by screws (8). The outer shell (3) is equipped with a base (1) and an inflation mechanism (2) at both ends. The inflation mechanism (2) includes an air nozzle (201) and an air tube (202). The bottom end of the air tube (202) is fixed on the airbag sleeve (4), and the top end is equipped with an air nozzle (201).

2. The air shaft with an inflation nozzle according to claim 1, characterized in that: The base (1) cavity is connected to the end sleeve (101) by a threaded connection. One end of the end sleeve (101) is press-fitted onto the outer surface of the end sleeve (101) by a hydraulic press.

3. The air shaft with an inflation nozzle according to claim 1, characterized in that: The base (1) cavity is connected to the inner shell (5) by a number of screws (8), and the upper surface of the inner shell (5) is provided with a number of openings so that the key strip (6) is embedded in the inner shell (5).

4. The air shaft with an inflation nozzle according to claim 1, characterized in that: The upper surface of the airbag sleeve (4) is fitted with a base (7), and the upper end of the base (7) is fixed with a key strip (6) by screws (8).

5. An air shaft with an inflation nozzle according to claim 1, characterized in that: The inflation mechanism (2) includes an air nozzle (201) and an air tube (202). One end of the air tube (202) is pressed onto one end of the airbag sleeve (4) by a hydraulic press, and the air nozzle (201) is installed at one end of the air tube (202).

6. An air shaft with an inflation nozzle according to claim 4, characterized in that: The upper end of the key bar (6) is connected to the outer shell (3) by screws (8).

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