Inflatable shaft convenient to install

Abstract

The utility model relates to the field of inflatable shafts, and discloses an inflatable shaft convenient to install, which comprises a shaft body, an air bag is arranged on the inner wall of the shaft body, a fixing mechanism is fixedly connected to the outer wall of the rear end of the shaft body, the fixing mechanism comprises a sealing cover, and an external thread is fixedly connected to the middle of the outer wall of the front end of the sealing cover. Limiting blocks are fixedly connected to the periphery of the outer wall of the front end of the sealing cover, internal threads are formed in the middle of the outer wall of the rear end of the shaft body, and limiting grooves are formed in the periphery of the outer wall of the rear end of the shaft body. Compared with most existing air expansion shafts convenient to install, the air expansion shaft convenient to install is provided with the limiting mechanism, the bearing is arranged on the outer wall of the air expansion shaft, the positioning hole is formed in the bearing, and when the air expansion shaft is limited, the pushing block is pushed through the linear actuator, and the pushing block pushes the clamping pliers; therefore, the positioning needle is pushed to enter the positioning hole, and the air expansion shaft is quickly fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas expansion shaft, especially a gas expansion shaft convenient to install. BACKGROUND

[0002] The gas expansion shaft is a kind of shaft for winding and unwinding, when using, the shaft is inflated by air nozzle, the key strip on the surface of the shaft is protruded and the external pipe is fixed, when the pipe needs to be removed, the air core on the air nozzle is pressed to deflate, so that the key strip is retracted, and the gas expansion shaft is loosened to fix the pipe.

[0003] In order to reduce the operation difficulty, improve production efficiency, the gas expansion shaft needs to be provided with a mechanism convenient to install and fix, to facilitate the continuous operation demand on production line, therefore, a gas expansion shaft convenient to install is needed to solve this problem.

[0004] Therefore, the skilled person in the art provides a gas expansion shaft convenient to install to solve the problems raised in the above background. SUMMARY

[0005] The utility model discloses a kind of gas expansion shafts convenient to install, compared with the conventional gas expansion shaft convenient to install, the gas expansion shaft convenient to install is provided with fixed mechanism, limit slot and limit block are set on sealing cover and shaft body, to facilitate quick alignment, and set up corresponding internal and external threads, to facilitate installation, so as to complete the quick installation and disassembly of gas expansion shaft, bearing is set on the outer wall of gas expansion shaft, positioning hole is set on the bearing, when limiting gas expansion shaft, push block is pushed by linear actuator, push block pushes clamping forceps, so as to push positioning needle into positioning hole, complete quick fixing to gas expansion shaft.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of gas expansion shaft convenient to install, including shaft body, the inner wall of the shaft body is provided with air bag, the rear end outer wall of the shaft body is fixedly connected with fixed mechanism, the fixed mechanism includes sealing cover, the middle part of the front end outer wall of the sealing cover is fixedly connected with external thread, the periphery of the front end outer wall of the sealing cover is fixedly connected with limit block, the middle part of the rear end outer wall of the shaft body is set with internal thread, the periphery of the rear end outer wall of the shaft body is set with limit slot;

[0008] The both ends of the outer wall of the shaft body are rotatably connected with limit mechanism, the limit mechanism includes a plurality of bases, the lower end of the outer wall of the base near the middle part of the shaft body one side is fixedly connected with linear actuator, the output of the linear actuator is fixedly connected with push block, the both sides of the outer wall of the push block are slidably connected with clamping forceps, the both ends of the outer wall of the shaft body are rotatably connected with bearing.

[0009] Through the technical scheme, the fixing mechanism and the limiting mechanism are arranged on the air inflation shaft, so that the air inflation shaft can be quickly installed and fixed, thereby meeting the needs of continuous operation in production.

[0010] Further, the outer wall of the pushing block and the clamping pincers is fixedly connected with a positioning needle, and the outer wall of the bearing is provided with a plurality of positioning holes.

[0011] Through the technical scheme, the positioning needle and the positioning hole are arranged to facilitate the quick fixing of the air inflation shaft.

[0012] Further, the pushing block and the clamping pincers are slidingly connected to the upper end of the outer wall of the base near the middle part of the shaft body.

[0013] Through the technical scheme, the pushing block is arranged to facilitate the pushing of the clamping pincers, so as to control the positioning of the positioning needle on the air inflation shaft.

[0014] Further, the outer wall of the front end of the shaft body is fixedly connected with an air nozzle.

[0015] Through the technical scheme, the air nozzle is arranged to facilitate the inflation and deflation of the air bag in the air inflation shaft.

[0016] Further, the outer wall of the front end of the limiting block is fixedly connected with a sealing washer.

[0017] Through the technical scheme, the sealing washer is arranged to ensure the tightness of the connection between the sealing cover and the shaft body, and to improve the air tightness of the air inflation shaft.

[0018] Further, the outer wall of the air bag is fixedly connected with a plurality of inner pressure plates.

[0019] Through the technical scheme, the inner pressure plate is arranged to facilitate the protrusion of the key bar or the retraction of the key bar.

[0020] Further, the outer wall of the inner pressure plate is fixedly connected with a plurality of key bars and a plurality of return springs.

[0021] Through the technical scheme, the key bar is arranged to protrude to fix the pipe, and the return spring is arranged to facilitate the resetting of the key bar after the air bag is deflated.

[0022] Further, the sealing cover is fixedly connected to the outer wall of the rear end of the shaft body.

[0023] Through the technical scheme, the sealing cover is arranged to ensure the air tightness of the air inflation shaft.

[0024] The utility model has the following beneficial effects:

[0025] 1. The utility model provides a kind of gas expansion shaft convenient to install, compared to most gas expansion shafts convenient to install of prior art, the gas expansion shaft convenient to install is provided with fixed mechanism, it is convenient to be aligned by being provided with limit slot and limit block on sealing cover and shaft body, simultaneously, the sealing gasket on limit block can guarantee the tightness of sealing cover and shaft body connection, improve the air tightness of gas expansion shaft, and it is convenient to install by being provided with corresponding internal and external threads, to complete the quick installation and disassembly of gas expansion shaft.

[0026] 2. The utility model provides a kind of gas expansion shaft convenient to install, compared to most gas expansion shafts convenient to install of prior art, the gas expansion shaft convenient to install is provided with limit mechanism, by being provided with bearing on the outer wall of gas expansion shaft, positioning hole is opened on bearing, when limiting gas expansion shaft, by linear actuator propelling push block, push block propelling clamping forceps, to push positioning needle into positioning hole, limiting gas expansion shaft, when needing to take down gas expansion shaft, push block is pushed down, drives clamping forceps to loosen, so that positioning needle leaves positioning hole, to complete the quick fixing of gas expansion shaft. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the structure diagram of the utility model to provide a kind of gas expansion shaft convenient to install;

[0028] Figure 2 It is the structure diagram of the bearing of the utility model to provide a kind of gas expansion shaft convenient to install;

[0029] Figure 3 It is the sectional view of the utility model to provide a kind of gas expansion shaft convenient to install;

[0030] Figure 4 It is the structure diagram of limit mechanism in the utility model to provide a kind of gas expansion shaft convenient to install;

[0031] Figure 5 It is the structure diagram of fixed mechanism in the utility model to provide a kind of gas expansion shaft convenient to install.

[0032] LEGEND:

[0033] 1, shaft body;2, air bag;3, inner pressure plate;4, key bar;5, reset spring;6, air cock;

[0034] 7, fixed mechanism;701, sealing cover;702, limit slot;703, limit block;704, internal thread;705, external thread;706, sealing gasket;

[0035] 8, limit mechanism;801, bearing;802, positioning hole;803, linear actuator;804, base;805, push block;806, clamping forceps;807, positioning needle. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0037] With reference to Figures 1-5 The utility model provides an embodiment:

[0038] A gas expansion shaft convenient to install, including the axle body 1, the inner wall of axle body 1 is provided with air bag 2, the rear end outer wall of axle body 1 is fixedly connected with fixed mechanism 7, fixed mechanism 7 includes sealing cover 701, the middle part of sealing cover 701 front end outer wall is fixedly connected with outer thread 705, sealing cover 701 front end outer wall is fixedly connected with the limiting block 703 around, the middle part of axle body 1 rear end outer wall is equipped with internal thread 704, the limiting slot 702 around of axle body 1 rear end outer wall is set up,

[0039] The both ends of axle body 1 outer wall are rotatably connected with limiting mechanism 8, limiting mechanism 8 includes a plurality of base 804, the lower end of base 804 near axle body 1 middle part one side outer wall is fixedly connected with linear actuator 803, the output of linear actuator 803 is fixedly connected with the propelling block 805, the both sides outer wall of propelling block 805 are slidably connected with clamping forceps 806, the both ends of axle body 1 outer wall are rotatably connected with bearing 801.

[0040] The gas expansion shaft convenient to install sets fixed mechanism 7 and limiting mechanism 8, is convenient for the quick installation and fixed of gas expansion shaft, to meet the demand of continuous operation on production.

[0041] The outer wall of the pushing block 805 and the clamping pincers 806 is fixedly connected with a positioning needle 807, the outer wall of the bearing 801 is provided with a plurality of positioning holes 802, the positioning needle 807 and the positioning hole 802 are arranged to facilitate the quick fixing of the gas expansion shaft, the pushing block 805 and the clamping pincers 806 are slidingly connected to the upper end of the outer wall of the bottom 804 near the middle part of the shaft body 1, the pushing block 805 is arranged to facilitate the pushing of the clamping pincers 806, so as to control the positioning of the positioning needle 807 on the gas expansion shaft, the outer wall of the front end of the shaft body 1 is fixedly connected with an air nozzle 6, the air nozzle 6 is arranged to facilitate the inflation and deflation of the air bag 2 in the gas expansion shaft, the outer wall of the front end of the limiting block 703 is fixedly connected with a sealing washer 706, the sealing washer 706 is arranged to ensure the tightness of the connection between the sealing cover 701 and the shaft body 1, and the air tightness of the gas expansion shaft is improved, the outer wall of the air bag 2 is fixedly connected with a plurality of inner pressure plates 3, the inner pressure plates 3 are arranged to facilitate the protrusion of the key strips 4 or the retraction of the key strips 4, the outer wall of the inner pressure plate 3 is fixedly connected with a plurality of key strips 4 and a plurality of return springs 5, the key strips 4 are arranged to facilitate the protrusion for fixing the pipe, and the return springs 5 are arranged to facilitate the resetting of the key strips 4 after the air bag 2 is deflated, and the sealing cover 701 is fixedly connected to the outer wall of the rear end of the shaft body 1, and the sealing cover 701 is arranged to ensure the air tightness of the gas expansion shaft.

[0042] Working principle: when the gas expansion shaft is installed, the limiting groove 702 and the limiting block 703 on the shaft body 1 and the sealing cover 701 are aligned with each other, the sealing cover 701 is screwed in through the external thread 705 and the internal thread 704, and the sealing washer 706 can ensure the tightness of the connection between the sealing cover 701 and the shaft body 1, after the installation of the gas expansion shaft is completed, the linear actuator 803 is started, the linear actuator 803 pushes the pushing block 805 upwards, the pushing block 805 drives the clamping pincers 806 to close, thereby driving the positioning needle 807 to enter the positioning hole 802, so as to position the gas expansion shaft, when the gas expansion shaft needs to be removed, the linear actuator 803 drives the pushing block 805 downwards, thereby driving the clamping pincers 806 and the positioning needle 807 on the pushing block 805 to move away from the positioning hole 802, and the gas expansion shaft can be removed.

[0043] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gas inflated shaft for ease of installation comprising a shaft body (1) characterised in that: The inner wall of the shaft body (1) is provided with an air bag (2), the rear end outer wall of the shaft body (1) is fixedly connected with a fixing mechanism (7), the fixing mechanism (7) comprises a sealing cover (701), the middle part of the front end outer wall of the sealing cover (701) is fixedly connected with an external thread (705), the periphery of the front end outer wall of the sealing cover (701) is fixedly connected with a limiting block (703), the middle part of the rear end outer wall of the shaft body (1) is provided with an internal thread (704), and the periphery of the rear end outer wall of the shaft body (1) is provided with a limiting groove (702); Both ends of the outer wall of the shaft body (1) are rotatably connected with a limiting mechanism (8), the limiting mechanism (8) comprises a plurality of bases (804), the lower end of the outer wall of the base (804) close to the middle part of the shaft body (1) is fixedly connected with a linear actuator (803), the output end of the linear actuator (803) is fixedly connected with a pushing block (805), the outer wall of both sides of the pushing block (805) is slidably connected with a clamping forceps (806), and the outer wall of both ends of the shaft body (1) is rotatably connected with a bearing (801).

2. The pneumatic expansion shaft of claim 1, wherein: The outer wall of the pushing block (805) and the clamping forceps (806) is fixedly connected with a positioning needle (807), and the outer wall of the bearing (801) is provided with a plurality of positioning holes (802).

3. The pneumatic expansion shaft of claim 1, wherein: The pushing block (805) and the clamping forceps (806) are slidably connected to the upper end of the base (804) close to the outer wall of the middle part of the shaft body (1).

4. The pneumatic expansion shaft of claim 1, wherein: The front end outer wall of the shaft body (1) is fixedly connected with an air nozzle (6).

5. The pneumatic expansion shaft of claim 1, wherein: The front end outer wall of the limiting block (703) is fixedly connected with a sealing washer (706).

6. The pneumatic expansion shaft of claim 1, wherein: The outer wall of the air bag (2) is fixedly connected with a plurality of inner pressure plates (3).

7. An air inflation shaft for easy installation according to claim 6, characterized in that: The outer wall of the inner pressure plate (3) is fixedly connected with a plurality of key strips (4) and a plurality of reset springs (5).

8. The pneumatic expansion shaft of claim 1, wherein: The sealing cover (701) is fixedly connected to the rear end outer wall of the shaft body (1).

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