A tightening device for a cushioned restraint airbag

Abstract

The application relates to a tightening device for a buffer limiting air bag, which comprises side plates, a fixing stake assembly, a guide roller, a guide rail, a traction rod, a binding belt assembly, a traction rope assembly and a pulley assembly, a plurality of uniformly arranged notches are formed in the upper portions of the side plates, fixing stakes of the fixing stake assembly are installed at the notches of the side plates, the binding belt assembly comprises a tightening binding belt, the tightening binding belt is wound on the traction rod after passing through the notches, and the end portions of the tightening binding belt are connected with the fixing stakes of the fixing stake assembly, the traction rod is slidably connected with the guide rail arranged on the side plate through the guide roller, and the traction rod is connected with a pulley of the pulley assembly through a traction rope in the traction rope assembly. The application has the advantages of convenient disassembly and assembly, compact structure, light weight, uniform air bag tightening, and air bag tightening effect without the need of workers to approach the air bag for operation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of engineering machinery, and particularly relates to a tightening device for a buffer limiting air bag. BACKGROUND

[0002] It is understood that a ship is a man-made vehicle mainly running in geographical water. When the ship encounters waves during driving or is at anchor, the equipment in the ship is prone to collision and scratching, which not only causes damage to the ship body and the equipment in the ship body, but also has safety hazards. In order to improve safety, the existing ship usually places some anti-collision devices, such as buffer limiting air bags, in the ship body. After the buffer limiting air bag is used, it needs to be stored in a designated area to avoid affecting the normal operation space of other equipment.

[0003] Generally, the air bag storage is in the form of manual operation, which is not only cumbersome, but also requires the worker to be close to the air bag. However, in a specific working condition (i.e. heavy objects are suspended above the air bag and the worker is not allowed to enter the area near the air bag under the actual operating conditions), the worker cannot enter the area near the air bag for operation, so that the air bag cannot be tightened in time, affecting the normal use of other equipment.

[0004] At present, most of the water launching air bags or rubber fenders for ships are considered for storage, and there is no introduction of air bag tightening devices. SUMMARY

[0005] The present application aims to overcome the defects in the prior art and provides a tightening device for a buffer limiting air bag, which can realize remote automatic tightening of the air bag without the worker being close to the air bag, thereby providing corresponding space for the operation of other equipment in the system.

[0006] In order to achieve the above purpose, the present application provides a tightening device for a buffer limiting air bag, which comprises a side plate, a fixing pile assembly, a guide roller, a guide rail, a traction rod, a binding belt assembly, a traction rope assembly and a pulley assembly. A plurality of uniformly arranged notches are formed in the upper part of the side plate, and the fixing piles of the fixing pile assembly are installed at the notches of the side plate. The binding belt assembly comprises a tightening binding belt, the tightening binding belt is wound around the traction rod after passing through the notches, and the end of the tightening binding belt is connected with the fixing piles of the fixing pile assembly. The traction rod is slidingly connected with the guide rail arranged on the side plate through the guide roller, and the traction rod is connected with a pulley of the pulley assembly through a traction rope in the traction rope assembly.

[0007] The present application provides a solution for tightening the airbag under the condition that the staff is prohibited to enter the airbag vicinity area. After the airbag is used, the traction rod is driven to move downward by the traction rope, and then the airbag is driven to shrink to the middle part by the tightening band, so as to complete the tightening work of the airbag. During the inflation of the airbag, the tightening band drives the traction rod to move upward, so that the traction rod returns to the original position.

[0008] The present application further adopts the following technical solutions:

[0009] Preferably, the fixing pile assembly comprises a first fixing pile and a second fixing pile, the first fixing pile is installed at the notch of the side plate, and the first fixing pile is provided with an opening one and an opening two, the opening one and the opening two are respectively provided with a connecting rod, the opening one and the opening two are respectively arranged on the two side surfaces of the side plate, the second fixing pile is installed on the bottom plate, and the second fixing pile is located on the same side as the opening two of the first fixing pile; the guide pipe assembly comprises a first guide pipe and a second guide pipe, the first guide pipe is sleeved on the connecting rod of the opening two, and the second guide pipe is sleeved on the traction rod; one end of the tightening band is connected with the second fixing pile, and the other end of the tightening band passes through the airbag, the first guide pipe and the second guide pipe and is connected with the opening one of the first fixing pile.

[0010] Preferably, the fixing pile assembly further comprises a third fixing pile and a fourth fixing pile, the third fixing pile is installed on the bottom plate, the fourth fixing pile is installed on the lower part of the side plate, and the third fixing pile and the fourth fixing pile are located on the same side and are arranged one by one; the band assembly further comprises a safety band, one end of the safety band is connected with the third fixing pile, and the other end of the safety band passes through the airbag and is connected with the fourth fixing pile.

[0011] Preferably, the pulley assembly comprises a first pulley, and the first pulley is installed on the bottom plate; the traction rope assembly comprises a first traction rope, one end of the first traction rope is connected with a first limiting block, and the other end of the first traction rope passes through the first pulley and is connected with the traction device.

[0012] Preferably, the first limiting block is annular, and the first limiting block is sleeved on the traction rod.

[0013] Preferably, the pulley assembly further comprises a second pulley and a third pulley, the second pulley and the third pulley are connected with the end of the side plate through a support; the traction rope assembly further comprises a second traction rope, one end of the second traction rope is connected with the end of the airbag arranged on one side of the side plate, and the other end of the second traction rope passes through the second pulley, the third pulley and a third guide pipe and is connected with a second limiting block.

[0014] Preferably, the second limiting block is annular, the second limiting block is sleeved on the traction rod, and the third guide pipe is installed on the upper end of the side plate.

[0015] Preferably, a fifth fixing post is arranged on the side plate below the notch, and the fifth fixing post is connected with the ring buckle on the air bag through the anti-rotation bandage.

[0016] Preferably, two guide rails extending along the height direction of the side plate are arranged on the side plate, the guide rails are matched with the guide rollers, the guide rollers are sleeved on the traction rod, and long strip holes matched with the traction rod are arranged on the guide rails.

[0017] Preferably, a bottom plate is arranged at the bottom of the side plate, and a rib plate is arranged at the two ends of the side plate.

[0018] The air bag tightening device has the advantages of convenient disassembly and assembly, compact structure, light weight, uniform air bag tightening, and air bag tightening effect without the need of workers to approach the air bag. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in combination with the drawings.

[0020] Figure 1 It is a front structure schematic view of the air bag tightening device of the present application.

[0021] Figure 2 It is a back structure schematic view of the air bag tightening device of the present application.

[0022] Figure 3 It is a back structure schematic view of the air bag tightening device of the present application in use.

[0023] Figure 4 It is a front structure schematic view of the air bag tightening device of the present application in use.

[0024] In the drawings: 1. side plate, 2. bottom plate, 3. rib plate, 4. opening one, 5. tightening bandage, 6. safety bandage, 7. first guide pipe, 8. second guide pipe, 9. third guide pipe, 10. guide roller, 11. guide rail, 12. traction rod, 13. first limiting block, 14. first pulley, 15. second pulley, 16. first traction rope, 17. traction device, 18. air bag, 19. opening two, 20. second fixing post, 21. third fixing post, 22. fourth fixing post, 23. third pulley, 24. second traction rope, 25. second limiting block, 26. fifth fixing post. DETAILED DESCRIPTION Example one

[0025] As Figure 1 and Figure 2The tightening device for the buffer limiting air bag is shown, and the worker can normally tighten the air bag without entering the air bag area. The tightening device includes side plates 1, a bottom plate 2, a rib plate 3, a fixing pile assembly, a guide pipe assembly, a guide roller 10, a guide rail 11, a traction rod 12, a pulley assembly, a traction rope assembly, and a binding belt assembly. The air bag 18 is arranged on the front surface of the side plate 1. The bottom plate 2 is arranged on the bottom surface of the side plate 1 and is fixedly connected to the test bed or the ship body through bolts and T-shaped nuts. The rib plate 3 has four rib plates, which are symmetrically arranged at both ends of the side plate 1. Six evenly arranged notches are arranged on the upper portion of the side plate 1 to allow the tightening belt 5 in the binding belt assembly to pass through. The guide rail 11 has two guide rails, which are arranged at the left and right ends of the side plate 1. The guide roller 10 is arranged on the guide rail 11 and can move up and down along the guide rail 11. The guide roller 10 is sleeved on the traction rod 12. The guide rail 11 is made of an I-shaped steel. The guide roller 10 has two groups of guide rollers, each group has two guide rollers, and the two guide rollers in each group are symmetrically arranged in the grooves on both sides of the I-shaped steel to facilitate the up and down movement along the grooves. A long hole is arranged on the middle plate of the I-shaped steel, so that the traction rod 12 can slide along the long hole when moving up and down.

[0026] The fixing pile assembly is composed of 24 fixing piles, specifically six first fixing piles, six second fixing piles 20, three third fixing piles 21, three fourth fixing piles 22, and six fifth fixing piles 26. The first fixing pile is arranged at the notch of the side plate 1. The first fixing pile is in the shape of H and has an opening one 4 and an opening two 19. A connecting rod is arranged in each of the opening one 4 and the opening two 19. The opening one 4 and the opening two 19 are arranged on the front and back surfaces of the side plate 1, respectively. The six second fixing piles 20 are uniformly arranged on the bottom plate 2. The second fixing pile 20 and the opening two 19 of the first fixing pile are arranged on the front surface of the side plate 1 and correspond to each other. The three third fixing piles 21 are uniformly arranged on the bottom plate 2. The three fourth fixing piles 22 are uniformly arranged on the lower portion of the side plate 1. The third fixing pile 21 and the fourth fixing pile 22 are arranged on the front surface of the side plate 1 and correspond to each other. The third fixing pile 21 is arranged between the two second fixing piles 20. The fifth fixing pile 26 is arranged below the notch of the side plate 1 and is arranged on the same side as the opening two 19. The second fixing pile 20, the third fixing pile 21, the fourth fixing pile 22, and the fifth fixing pile 26 are all in the shape of U and have a connecting rod arranged in the U-shaped opening. The guide pipe assembly includes six first guide pipes 7, six second guide pipes 8, and two third guide pipes 9. The first guide pipe 7 is sleeved on the connecting rod of the opening two 19. The second guide pipe 8 is sleeved on the traction rod 12, and the two ends of the second guide pipe 8 are positioned by limiting rings. The third guide pipe 9 is arranged at the upper ends of the side plate 1. One end of the third guide pipe 9 is connected to the side plate 1, and the other end is provided with a fixed pulley.

[0027] The pulley assembly comprises first pulleys 14, second pulleys 15 and third pulleys 23, the first pulleys 14 are two and are installed on the bottom plate 2, the second pulleys 15 and the third pulleys 23 are two respectively and are installed on the left and right ends of the side plate 1 through supports. The first pulleys 14, the second pulleys 15 and the third pulleys 23 are located on the back of the side plate 1. The traction rope assembly comprises first traction ropes 16 and second traction ropes 24, the first traction ropes 16 are two, one end of the first traction ropes 16 is connected with the first limiting block 13 sleeved on the traction rod 12, the other end is connected with the traction device 17 through a rope ring and a main traction rope. That is, the two first traction ropes 16 are fixed on the traction rod 12 through the first limiting block 13 respectively, then pass through the first pulleys 14 respectively, converge at a point and finally are connected with the traction device 17 through a rope ring and a main traction rope. The second traction ropes 24 are also two, are located on the left and right ends of the side plate 1 and are used to pull the end of the air bag 18, one end of the second traction ropes 24 is connected with the end of the air bag 18, the other end passes through the second pulleys 15, the third pulleys 23 and the fixed pulley of the third guide pipe 9 in sequence and is connected with the second limiting block 25 sleeved on the end of the traction rod 12. The first limiting block 13 and the second limiting block 25 are annular.

[0028] The binding belt assembly comprises six tightening belts 5, three safety belts 6 and six anti-rotation belts. One end of the tightening belt 5 is connected with the connecting rod of the second fixing stake 20, the other end passes through the air bag 18, the first guide pipe 7 at the opening two 19, the notch of the side plate 1, the second guide pipe 8 on the traction rod 12 in sequence and is connected with the connecting rod of the opening one 4. One end of the safety belt 6 is connected with the connecting rod of the third fixing stake 21, the other end passes through the air bag 18 and is fixed on the connecting rod of the fourth fixing stake 22. One end of the anti-rotation belt is connected with the ring buckle on the air bag 18, the other end is connected with the connecting rod of the fifth fixing stake 26. The anti-rotation belt can prevent the air bag 18 from rotating during the tightening process.

[0029] Before use, the tightening device is installed on the test bench through bolts and T-shaped nuts, then the un-inflated air bag 18 is placed along the side of the device, the tightening belt 5 and the safety belt 6 are passed through and the ends of the belts are fixed on the fixing stakes. At this time, the safety belt 6 can not be tied, because the safety belt 6 is designed to overcome the buoyancy of the air bag 18 after the air bag 18 is launched into water, so it will not affect the tightening effect of the device. After the belt is fixed, the air source is connected with the inflation port of the air bag 18, when the internal pressure of the air bag 18 reaches the specified pressure, the air source is cut off. Finally, the end of the air bag 18 is connected with the traction rod 12 using the second traction rope 24, then the traction rod 12 is connected with the traction device 17 using the first traction rope 16. According to the specifications of the air bag 18, the cutting line of the tightening area is made on the test bench plane, after the air bag 18 is deflated, the tightening device is operated to observe whether the air bag body is completely within the cutting line.

[0030] The specific operation of the tightening device verification tightening effect is shown as follows:

[0031] 1) The air bag tightening device is transported to the designated position of the test bench under the cooperation of the crane and the lifting tool, and the bottom plate 2 of the tightening device is installed on the test bench using bolts and T-shaped nuts. The air bag 18 is transported to the installation area under the cooperation of the lifting tool, and the cutoff line is drawn at the corresponding position of the test bench.

[0032] 2) The tightening strap 5 is passed through the corresponding position of the air bag 18, then passed through the first guide pipe 7 and the second guide pipe 8, and finally fixed on the connecting rod of the opening one 4 of the first fixing stake and the second fixing stake 20.

[0033] 3) The safety strap 6 is passed through the corresponding position of the air bag 18, and one end of the safety strap 6 is fixed on the third fixing stake 21 and the other end is fixed on the fourth fixing stake 22. At the same time, in order to ensure the tightening effect, the anti-rotation strap is selected to connect with the fifth fixing stake 26 to prevent the air bag 18 from rotating during the tightening process and affecting the tightening effect.

[0034] 4) The air bag 18 is inflated using the inflation head, and the inflation is stopped when the internal pressure of the air bag 18 reaches the required value. The end of the air bag 18 is connected with the traction rod 12 after passing through the second pulley 15, the third pulley 20 and the third guide pipe 9 using the second traction rope 24, and is fixed on the traction rod 12 using the second limiting block 25.

[0035] 5) After the two first traction ropes 16 are connected with the traction rod 12, the rope ring is fixed using the first limiting block 13, and then the two first traction ropes 16 pass through the first pulley 14, and finally the two first traction ropes 16 are connected with the traction device 17.

[0036] 6) The air bag 18 is removed to achieve deflation, and after the gas in the air bag 18 is discharged, the traction device 17 drives the guide roller 10 to move downward through the first traction rope 16, and the traction rod 12 moves downward with the guide roller 10 to drive the tightening strap 5 to tighten the air bag 18 inward to the cutoff line at double the stroke. At the same time, the traction rod 12 moves downward, and the end of the air bag 18 is tightened to the middle through the second traction rope 24.

[0037] After the tightening test is completed, whether the air bag 18 is completely pulled into the cutoff line is evaluated to verify whether the tightening device meets the predetermined tightening effect requirement.

[0038] In addition, when the air bag 18 is inflated, the tightening belt 5 slowly restores to the original state as the air bag 18 is inflated, and the traction rod 12 is driven by the tightening belt 5 and the second traction rope 24 to move upward to the original position.

[0039] According to the above method, by designing the tightening device and according to the test scheme introduced, the tightening device can achieve the tightening effect of the air bag 18 under the given working condition without the operation of personnel in the vicinity of the air bag 18, and ensure the normal operation space of other equipment in the system.

[0040] The tool structure of the present application is novel, and the structure of the tightening device is derived by using the method of topology optimization to reduce the weight of the tightening device. The device is designed for the working condition that personnel cannot enter the vicinity of the air bag, and the air bag is remotely tightened, which effectively solves the engineering problems that the current remote tightening air bag scheme and operation device structure have not proposed, and verifies that the air bag can be tightened without the need for the operator to approach the air bag.

[0041] In addition to the above embodiments, the present application can have other implementation manners. Any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present application.

Claims

1. A retractor device for a cushioned restraint airbag, characterized by: The traction device comprises side plates, anchoring pile assemblies, guide rollers, guide rails, traction rods, bandage assemblies, traction rope assemblies, pulley assemblies and guide tube assemblies, a plurality of uniformly arranged notches are formed on the upper portions of the side plates, anchoring piles of the anchoring pile assemblies are installed at the notches of the side plates, the bandage assemblies comprise tightening bands, the tightening bands are wound around the traction rods after passing through the notches, and the ends of the tightening bands are connected with the anchoring piles of the anchoring pile assemblies, the traction rods are slidingly connected with the guide rails arranged on the side plates through the guide rollers, and the traction rods are connected with the pulleys of the pulley assemblies through a traction rope in the traction rope assemblies.

2. The retractor device for a cushion restraint airbag according to claim 1, wherein: The anchoring pile assemblies comprise first anchoring piles and second anchoring piles, the first anchoring piles are installed at the notches of the side plates, the first anchoring piles are provided with openings one and two, the openings one and two are arranged on the two side surfaces of the side plates respectively, the second anchoring piles are installed on the bottom plates, and the second anchoring piles are located on the same side as the openings two; the guide tube assemblies comprise first guide tubes and second guide tubes, the first guide tubes are sleeved on the connecting rods of the openings two, and the second guide tubes are sleeved on the traction rods; one end of the tightening band is connected with the second anchoring pile, and the other end of the tightening band is connected with the opening one of the first anchoring pile after passing through the air bag, the first guide tube and the second guide tube.

3. The retractor device for a cushion restraint airbag according to claim 1, wherein: The anchoring pile assemblies further comprise third anchoring piles and fourth anchoring piles, the third anchoring piles are installed on the bottom plates, the fourth anchoring piles are installed on the lower portions of the side plates, and the third anchoring piles and the fourth anchoring piles are located on the same side and are arranged one-to-one; the bandage assemblies further comprise safety bands, one end of the safety band is connected with the third anchoring pile, and the other end of the safety band is connected with the fourth anchoring pile after passing through the air bag.

4. The retractor device for a cushion restraint airbag according to claim 1, wherein: The pulley assemblies comprise a first pulley, and the first pulley is installed on the bottom plate; the traction rope assemblies comprise a first traction rope, one end of the first traction rope is connected with a first limiting block, and the other end of the first traction rope is connected with a traction device after passing through the first pulley.

5. The retractor device for a cushioned restraint airbag of claim 4, wherein: The first limiting block is annular, and the first limiting block is sleeved on the traction rod.

6. The retractor device for a cushion restraint airbag according to claim 1, wherein: The pulley assemblies further comprise a second pulley and a third pulley, the second pulley and the third pulley are connected with the end portions of the side plates through supports; the traction rope assemblies further comprise a second traction rope, one end of the second traction rope is connected with the end portion of the air bag arranged on one side of the side plate, and the other end of the second traction rope is connected with a second limiting block after passing through the second pulley, the third pulley and a third guide tube.

7. The retractor device for a cushion restraint airbag according to claim 6, wherein: The second limiting block is annular, the second limiting block is sleeved on the traction rod, and the third guide tube is installed on the upper end portion of the side plate.

8. The retractor device for a cushion restraint airbag according to claim 1, wherein: A fifth anchoring pile is arranged below the notches on the side plate, and the fifth anchoring pile is connected with a loop buckle arranged on the air bag through a rotation-preventing band.

9. The retractor device for a cushion restraint airbag according to claim 1, wherein: Two guide rails extending along the height direction of the side plate are arranged on the side plate, the guide rails are matched with the guide rollers, the guide rollers are sleeved on the traction rods, and long strip holes matched with the traction rods are formed on the guide rails.

10. The retractor device for a cushion restraint airbag according to claim 1, characterized by: A bottom plate is arranged on the bottom portion of the side plate, and rib plates are arranged on the two end portions of the side plate.

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