Air bag air-entrapping expansion joint

Abstract

The utility model provides an air bag air-entrapping expansion joint which comprises an air bag provided with an air inlet, and further comprises a locking threaded sleeve, a ventilation joint pipe, a locking nut, a skirt expansion sleeve, an inner cone end pad locking sleeve and a hanging ring, the locking threaded sleeve is cylindrical, the outer side of the end portion of one end of the locking threaded sleeve is expanded to form a conical limiting sleeve, and the end portion of the other end of the locking threaded sleeve is provided with an air inlet. The other end of the locking threaded sleeve is connected with a ventilation connector pipe, the portion, in the direction of the limiting sleeve, of the locking threaded sleeve is movably sleeved with a skirt expansion sleeve, one end of the skirt expansion sleeve expands to form a conical sleeve, and the portion, at the other end of the skirt expansion sleeve, of the locking threaded sleeve is movably sleeved with an inner conical end pad locking sleeve. One end of the inner conical end pad locking sleeve shrinks to form a connecting ring, the connecting ring is sleeved with the locking threaded sleeve, a locking nut is arranged on the portion, on the outer side of the connecting ring, of the locking threaded sleeve, and a hanging ring is fixed to the peripheral face of the inner conical end pad locking sleeve. After the scheme is adopted, the structure is reasonable, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding industry, in particular to an air bag aerated expansion joint. Background Art

[0002] At present, air bags are used for most of the lifting and moving of large ships when they are moved uphill for maintenance, or when new ships are lifted up and down. When the ship turns and moves under special conditions or when the air bag is not filled with enough air, it is easy for the ship to deviate and damage the aluminum or cast iron air bag inflation joint of the air bag. After being damaged, the air bag air port with high air pressure is blocked with wooden points or other methods. When the air pressure of the air bag air port is very high, the damaged air port blockage is easily washed away, causing unsafe situations. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an airbag aerated expansion joint.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: an airbag aerated expansion joint, which includes an airbag, an air inlet is provided on the airbag, and it also includes a locking screw sleeve, a vent joint pipe, a locking nut, a skirt expansion sleeve, an inner cone end pad locking sleeve, and a lifting ring, wherein the locking screw sleeve is cylindrical, and the outer side of one end of the locking screw sleeve is expanded to form a conical limiting sleeve, and the other end of the locking screw sleeve is connected to the vent joint pipe, and the locking screw sleeve in the direction of the limiting sleeve is movably sleeved with a skirt expansion sleeve, one end of the skirt expansion sleeve is expanded to form a conical sleeve, and the locking screw sleeve at the other end of the skirt expansion sleeve is movably sleeved with an inner cone end pad locking sleeve, one end of the inner cone end pad locking sleeve is contracted to form a connecting ring, the connecting ring is fitted with the locking screw sleeve, a locking nut is provided on the locking screw sleeve outside the connecting ring, and a lifting ring is fixed on the outer circumferential surface of the inner cone end pad locking sleeve.

[0005] The skirt expansion sleeve is made of rubber material.

[0006] The surface of the locking screw sleeve in the direction of the ventilation joint pipe is provided with a locking external thread, and the locking nut is engaged with the locking external thread.

[0007] The inner cone end pad locking sleeve is cylindrical and is sleeved on the outside of the skirt expansion sleeve. An airbag limiting area is reserved between the inner cavity wall of the inner cone end pad locking sleeve and the outer peripheral surface of the skirt expansion sleeve.

[0008] The conical sleeve is located at the end of the skirt expansion sleeve in the direction of the limiting sleeve, and the conical sleeve matches the limiting sleeve.

[0009] An internal joint thread is provided on the inner cavity wall of the other end of the locking screw sleeve, and an external joint thread is provided on one end of the vent joint pipe, and the external joint thread is engaged with the internal joint thread.

[0010] After adopting the above scheme, the utility model puts the skirt expansion sleeve on the locking screw sleeve, the outer end of the tapered sleeve contacts the limit sleeve, the locking screw sleeve at one end of the limit sleeve is inserted into the air bag inlet, the air bag inlet will fit the skirt expansion sleeve, the inner cone end pad locking sleeve is put in from the outer end of the locking screw sleeve, the locking nut is gradually engaged from the outer end of the locking screw sleeve, and under the push of the locking nut, the connecting ring of the inner cone end pad locking sleeve pushes the open end of the inner cone end pad locking sleeve to gradually move toward the direction of the skirt expansion sleeve, and after the movement, the connecting ring begins to engage with the outer end of the skirt expansion sleeve The camming sleeve contacts the inner conical end pad and pushes the skirt expansion sleeve toward the limit sleeve. The conical sleeve begins to contact the limit sleeve and gradually expands outwards under the guidance of the conical surface of the limit sleeve (the angle of the conical sleeve becomes larger). Finally, the air inlet of the airbag is stuck between the locking sleeve of the inner conical end pad and the conical sleeve, thereby fixing the air inlet of the airbag. The vent joint tube is connected to the locking screw sleeve, and the inflation operation can be performed. The air can smoothly enter and exit the airbag port through the vent joint tube, and will not cause damage or blockage to the airbag air inlet. The structure after adopting this solution is reasonable and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the expansion of the tapered sleeve of the present utility model.

[0013] Figure 3 It is a cross-sectional view of the present utility model. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with all the accompanying drawings. The preferred embodiments of the present invention are as follows: Figure 1 To the attached Figure 3 The airbag aerated expansion joint described in this embodiment includes an airbag 7, which is provided with an air inlet. It also includes a locking screw sleeve 3, a vent joint pipe 1, a locking nut 2, a skirt expansion sleeve 4, an inner cone end pad locking sleeve 5, and a lifting ring 6. Among them, the locking screw sleeve 3 is cylindrical, and the outer side of one end of the locking screw sleeve 3 is expanded to form a conical limiting sleeve 8. The other end of the locking screw sleeve 3 is connected to the vent joint pipe 1, and the locking screw sleeve 3 in the direction of the limiting sleeve 8 is movably sleeved with a skirt expansion sleeve 4, one end of the skirt expansion sleeve 4 is expanded to form a conical sleeve 9, and the locking screw sleeve 3 at the other end of the skirt expansion sleeve 4 is movably sleeved with an inner cone end pad locking sleeve 5, one end of the inner cone end pad locking sleeve 5 is contracted to form a connecting ring, and the connecting ring is fitted with the locking screw sleeve 3, and a locking nut 2 is provided on the locking screw sleeve 3 outside the connecting ring, and a lifting ring 6 is fixed on the outer circumferential surface of the inner cone end pad locking sleeve 5.

[0015] The skirt expansion sleeve 4 is made of rubber material. The surface of the locking screw sleeve 3 in the direction of the ventilation joint pipe 1 is provided with a locking external thread, and the locking nut 2 is engaged with the locking external thread. The inner cone end pad locking sleeve 5 is cylindrical and is mounted on the outside of the skirt expansion sleeve 4. An airbag 7 limiting area is reserved between the inner cavity wall of the inner cone end pad locking sleeve 5 and the outer peripheral surface of the skirt expansion sleeve 4. The conical sleeve 9 is located at the end of the skirt expansion sleeve 4 in the direction of the limiting sleeve 8, and the conical sleeve 9 matches the limiting sleeve 8. The inner cavity wall at the other end of the locking screw sleeve 3 is provided with a joint internal thread, and one end of the ventilation joint pipe 1 is provided with a joint external thread, and the joint external thread is engaged with the joint internal thread.

[0016] After adopting the above scheme, the skirt expansion sleeve is put on the locking screw sleeve, the outer end of the tapered sleeve contacts the limit sleeve, the locking screw sleeve at one end of the limit sleeve is inserted into the air bag air inlet, the air bag air inlet will cover the skirt expansion sleeve, the inner cone end pad locking sleeve is put on from the outer end of the locking screw sleeve, and the locking nut is gradually engaged from the outer end of the locking screw sleeve. Under the push of the locking nut, the connecting ring of the inner cone end pad locking sleeve pushes the open end of the inner cone end pad locking sleeve to gradually move toward the direction of the skirt expansion sleeve. After the movement, the connecting ring begins to contact the outer end of the skirt expansion sleeve. The camming member is in a position to move relative to the camming member, and the ...

[0017] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any changes made based on the shape and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An airbag aerated expansion joint, comprising an airbag (7) provided with an air inlet, characterized in that: It also includes a locking screw sleeve (3), a vent joint pipe (1), a locking nut (2), a skirt expansion sleeve (4), an inner cone end pad locking sleeve (5), and a lifting ring (6), wherein the locking screw sleeve (3) is cylindrical, one end of the locking screw sleeve (3) is expanded to form a tapered limiting sleeve (8), the other end of the locking screw sleeve (3) is connected to the vent joint pipe (1), and the locking screw sleeve (3) in the direction of the limiting sleeve (8) is movably sleeved with a skirt expansion sleeve. (4), one end of the skirt expansion sleeve (4) is expanded to form a conical sleeve (9), and the locking screw sleeve (3) at the other end of the skirt expansion sleeve (4) is movably sleeved with an inner cone end pad locking sleeve (5), and one end of the inner cone end pad locking sleeve (5) is contracted to form a connecting ring, which is fitted with the locking screw sleeve (3), and a locking nut (2) is provided on the locking screw sleeve (3) outside the connecting ring, and a lifting ring (6) is fixed on the outer peripheral surface of the inner cone end pad locking sleeve (5).

2. The airbag aerated expansion joint according to claim 1, characterized in that: The skirt expansion sleeve (4) is made of rubber material.

3. The airbag aerated expansion joint according to claim 1, characterized in that: The surface of the locking screw sleeve (3) in the direction of the vent joint pipe (1) is provided with a locking external thread, and the locking nut (2) is engaged with the locking external thread.

4. The airbag aerated expansion joint according to claim 1, characterized in that: The inner cone end pad locking sleeve (5) is cylindrical and is sleeved on the outside of the skirt expansion sleeve (4). An air bag (7) limiting area is reserved between the inner cavity wall of the inner cone end pad locking sleeve (5) and the outer peripheral surface of the skirt expansion sleeve (4).

5. The airbag aerated expansion joint according to claim 1, characterized in that: The conical sleeve (9) is located at the end of the skirt expansion sleeve (4) in the direction of the limiting sleeve (8), and the conical sleeve (9) matches the limiting sleeve (8).

6. The airbag aerated expansion joint according to claim 1, characterized in that: An internal joint thread is provided on the inner cavity wall of the other end of the locking screw sleeve (3), and an external joint thread is provided on one end of the vent joint pipe (1), and the external joint thread is engaged with the internal joint thread.

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