Plate-type inflatable shaft

Abstract

The utility model discloses a plate type inflatable shaft which comprises a pipe body, shaft heads are arranged at the two ends of the pipe body, an air bag is arranged in the pipe body, each shaft head is provided with an inflation structure connected with the end of the air bag, a plurality of battens are arranged on the outer portion of the pipe body, a plurality of bottom plates are arranged on the outer surface of the air bag, and the bottom plates are connected with the air bag. Dovetail grooves are formed in the top of the bottom plate and the bottoms of the battens, and the bottom plate and the battens which are opposite to each other are connected in the mode that a plurality of key bars are inserted into the dovetail grooves. According to the utility model, the key strip, the bottom plate and the batten can be quickly assembled by adopting a clamping connection mode of the dovetail groove and the clamping block, and meanwhile, the spring is arranged between the bottom plate and the pipe body, so that the key strip, the bottom plate and the batten can be quickly reset after the air bag is deflated.

Description

Technical Field

[0001] The utility model relates to the technical field of air shafts, in particular to a plate-type air shaft. Background Art

[0002] Pneumatic shafts are often used in slitting machines, rewinding machines, coating machines, laminating machines, labeling machines, printing machines, die-cutting machines and other machines to take up and put out coils to tighten the tube core. The plate-type pneumatic shaft is mainly composed of airbags, key strips, plate strips and a main body. These parts are generally assembled by screws and nuts. However, due to the small size of key strips and other parts, it is not convenient to assemble them. In addition, the pneumatic shaft has certain requirements for the position accuracy of the key strips. Position deviations are prone to occur during assembly, resulting in the pneumatic shaft being unable to be used normally after assembly, or the key strips being unable to be reset normally during use, which is quite troublesome.

[0003] Therefore, it is necessary to provide a plate-type air shaft which is easy and quick to assemble and whose key strip can be quickly and accurately reset. Utility Model Content

[0004] The utility model provides a plate-type air shaft to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plate-type inflatable shaft comprises a tube body, shaft heads are provided at both ends of the tube body, an airbag is provided on the tube body, and each shaft head is provided with an inflatable structure connected to the end of the airbag, a plurality of slats are provided on the outside of the tube body, a plurality of bottom plates are provided on the outer surface of the airbag, dovetail grooves are provided on the top of the bottom plate and the bottom of the slats, and the relative bottom plates and slats are connected by inserting a plurality of key strips in the dovetail grooves.

[0007] Preferably, the dovetail groove is a trapezoidal groove with a short side as an opening, the top and bottom of the key bar are provided with a card block corresponding to the dovetail groove, the bottom of the key bar is plugged with the bottom plate through the card block, and the top of the key bar is also provided with a screw to be fixedly connected with the bottom plate. Through the quick clamping installation of the dovetail groove and the card block, the effect of quick assembly of the parts connected with the key bar is achieved, reducing the difficulty of installing the inflatable shaft.

[0008] Preferably, a ruler is provided on the bottom plate, so that the key bar can be accurately fixed in position when plugged into the bottom plate, and the key bar installation position is prevented from being offset.

[0009] Preferably, the inflation structure includes an air nozzle installed on the top of the shaft head, and each shaft head located inside the tube body is provided with a sealing plug connected to the end of the airbag, and the sealing plug is also connected to the air nozzle.

[0010] Preferably, a bottom tube is further provided in the airbag, and the two sealing plugs are fixedly connected by the bottom tube, and a plurality of vent holes are provided on the outer peripheral side surface of the bottom tube. The bottom tube is used to help fix the positions of the two sealing plugs and play a reinforcing effect.

[0011] Preferably, the tube body is provided with a plurality of through holes, and the key strip is fixedly connected to the plate strip through the through holes.

[0012] Preferably, the bottom plate is further provided with a plurality of springs, the springs being located between the bottom plate and the tube body, and the springs being used to quickly reset the key strip by the elastic force of the springs after the airbag is deflated.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model adopts the method of arranging dovetail grooves on the bottom plate and the slats, and arranging clamping blocks on the top of the key strip and the bottom plate to be plugged into the dovetail grooves for assembly. The assembly is convenient and fast. At the same time, a ruler is provided on the bottom plate to accurately align the installation position of the key strip on the bottom. When the airbag is deflated, the spring between the tube body and the bottom plate releases the pressure, thereby realizing active and rapid resetting of the key strip, reducing the risk of the key strip being stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal cross-sectional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the pipe structure of the utility model;

[0018] 1. Tube body; 2. Shaft head; 3. Air nozzle; 4. Sealing plug; 5. Air bag; 6. Bottom tube; 7. Bottom plate; 8. Key strip; 9. Plate strip; 10. Spring; 11. Through hole; 12. Screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-3A plate-type inflatable shaft comprises a tube body 1, shaft heads 2 are provided at both ends of the tube body 1, an air bag 5 is provided inside the tube body 1, and each shaft head 2 is provided with an inflatable structure connected to the end of the air bag 5, a plurality of slats 9 are provided on the outside of the tube body 1, a plurality of bottom plates 7 are provided on the outer surface of the air bag 5, dovetail grooves are provided on the top of the bottom plate 7 and the bottom of the slats 9, and the relative bottom plates 7 and slats 9 are connected by inserting a plurality of key strips 8 in the dovetail grooves.

[0021] The dovetail groove is a trapezoidal groove with a short side as an opening, and the top and bottom of the key bar 8 are provided with a card block corresponding to the dovetail groove. The bottom of the key bar 8 is plugged with the bottom plate 7 through the card block, and the top of the key bar 8 is also provided with a screw 12 to be fixedly connected with the bottom plate 7. Through the quick clamping installation of the dovetail groove and the card block, the effect of quick assembly of the parts connected with the key bar 8 is achieved, and the difficulty of installing the inflatable shaft is reduced.

[0022] The bottom plate 7 is provided with a ruler so that the key bar 8 can be accurately fixed in position when plugged into the bottom plate 7, thereby preventing the key bar 8 from being displaced in the installation position.

[0023] The inflation structure includes an air nozzle 3 installed on the top of the shaft head 2 . Each shaft head 2 located inside the tube body 1 is provided with a sealing plug 4 connected to the end of the airbag 5 . The sealing plug 4 is also connected to the air nozzle 3 .

[0024] A bottom tube 6 is also provided in the airbag 5, and the two sealing plugs 4 are fixedly connected by the bottom tube 6. A plurality of vent holes are provided on the outer peripheral side surface of the bottom tube 6. The bottom tube 6 is used to help fix the positions of the two sealing plugs 4 and play a reinforcing effect.

[0025] The tube body 1 is provided with a plurality of through holes 11 , and the key strip 8 is fixedly connected to the plate strip 9 through the through holes 11 .

[0026] A plurality of springs 10 are also provided on the bottom plate 7, and the springs 10 are located between the bottom plate 7 and the tube body 1. The springs 10 are used to quickly reset the key strip 8 by the elastic force of the springs 10 after the airbag 5 is deflated.

[0027] During assembly, the key strip 8 is plugged and installed with the bottom plate 7, and the position of the key strip 8 on the ruler is aligned. After the bottom tube 6, the airbag 5, and the bottom plate 7 are assembled in the tube body 1, after the key strip 8 extends out of the through hole 11 of the tube body 1, the plate 9 is plugged into the block on the top of the key strip 8, and finally the shaft head 2 is installed at both ends of the tube body 1, and the sealing plug 4 is docked with the corresponding airbag 5 and bottom tube 6.

[0028] When in use, air is inflated into the airbag 5 through the air nozzle 3. After the airbag 5 expands, it forces the bottom plate 7 and the key strip 8 to move outward, thereby causing the external slats 9 to expand inward, thereby fixing the external tube core. When the airbag 5 is deflated, the spring 10 between the bottom plate 7 and the tube body 1 is reset, thereby releasing the elastic force to reset the bottom plate 7, thereby driving the key strip 8 and the slats 9 connected to the key strip 8 to reset, thereby achieving an active reset effect of the key strip 8 and the slats 9.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plate-type inflatable shaft, comprising a tube body (1), characterized in that: Both ends of the tube body (1) are provided with shaft heads (2), an air bag (5) is provided inside the tube body (1), and each shaft head (2) is provided with an inflatable structure connected to the end of the air bag (5), a plurality of slats (9) are provided on the outside of the tube body (1), and a plurality of bottom plates (7) are provided on the outer surface of the air bag (5), and dovetail grooves are provided on the top of the bottom plate (7) and the bottom of the slats (9), and the bottom plates (7) and the slats (9) are connected to each other by inserting a plurality of key strips (8) in the dovetail grooves.

2. The plate-type inflatable shaft according to claim 1, characterized in that: The dovetail groove is a trapezoidal groove with a short side as an opening. The top and bottom of the key bar (8) are both provided with clamping blocks corresponding to the dovetail groove. The bottom of the key bar (8) is plugged into the bottom plate (7) through the clamping blocks. The top of the key bar (8) is also provided with screws (12) to be fixedly connected to the bottom plate (7).

3. The plate-type inflatable shaft according to claim 2, characterized in that: The bottom plate (7) is provided with a scale.

4. The plate-type inflatable shaft according to claim 1, characterized in that: The inflation structure comprises an air nozzle (3) mounted on the top of the shaft head (2); each shaft head (2) is provided with a sealing plug (4) connected to the end of the airbag (5) on one side located inside the tube body (1); and the sealing plug (4) is also connected to the air nozzle (3).

5. The plate-type inflatable shaft according to claim 4, characterized in that: A bottom tube (6) is also provided in the airbag (5), and the two sealing plugs (4) are fixedly connected via the bottom tube (6). The outer peripheral side surface of the bottom tube (6) is provided with a plurality of ventilation holes.

6. The plate-type inflatable shaft according to claim 1, characterized in that: The tube body (1) is provided with a plurality of through holes (11), and the key strip (8) is fixedly connected to the plate strip (9) through the through holes (11).

7. The plate-type inflatable shaft according to claim 5, characterized in that: A plurality of springs (10) are also provided on the bottom plate (7), and the springs (10) are located between the bottom plate (7) and the tube body (1).

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