Seawater prevention device for barge oil cylinder

Abstract

The utility model provides a barge oil cylinder anti-seawater device, and relates to the barge oil cylinder anti-seawater device field, the barge oil cylinder anti-seawater device comprises an oil cylinder assembly, the oil cylinder assembly comprises a cylinder barrel, an end cover and a rod head, the end cover is installed at one end of the cylinder barrel, a protection assembly is installed between the end cover and the rod head, the protection assembly comprises a corrugated pipe, two connecting flanges, two gaskets and a gland, the two connecting flanges and the two gaskets are fixed to the two ends of the corrugated pipe respectively, and the two connecting flanges are in threaded connection with the rod head and the gland through bolts respectively; by arranging the corrugated pipe, the connecting flange, the gasket and the gland, the effect of protecting the plug rod is achieved, the two ends of the corrugated pipe are fixed to the rod head and the gland respectively through the connecting flange, the corrugated pipe is driven to move along with the plug rod when the plug rod stretches out and draws back, and therefore the plug rod can be protected; and the condition that the plug rod is corroded and damaged by seawater is prevented, so that the service life of the oil cylinder is effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of seawater proof devices for oil cylinders of barges, in particular to a seawater proof device for oil cylinders of barges. Background Art

[0002] A barge is a flat-bottomed boat without a power unit, mainly used for transporting cargo and can navigate in inland waterways such as rivers and canals. The barge cylinder is one of the important components of the barge, mainly used to control the opening and closing of the barge. The cylinder is usually composed of a cylinder body, a piston, a piston rod and other parts. In order to prevent water and pollutants from entering the cylinder, a sealing structure is usually set at the contact point between the cylinder body and the piston rod.

[0003] According to Chinese patent application number: 201720702816.8, a cylinder waterproof device for an open-body mud barge is disclosed. The two ends of the cylinder are respectively connected to the left and right halves of the hull and drive the halves to open or close. The cylinder includes a cylinder body, a piston disposed in the cylinder body, a piston rod connected to the piston, and a guide sleeve and a pressure cover disposed at the front end of the cylinder body. The piston rod partially extends out of the cylinder body and is connected to a rod head. The rod head and the cylinder body are connected to the halves. A sealing structure is provided on the contact portion between the cylinder body and the piston rod. The end cover waterproof sealing structure includes a dust ring and a universal seal ring. The dust ring is located on the outside of the universal seal ring. The universal seal ring includes a U-shaped sealing shell and a V-shaped corrosion-resistant spring disposed in the sealing shell.

[0004] The existing technology effectively solves the problem that during the process of unloading and loading mud, the oil cylinder will be in contact with the mud and water mixture for a long time, damaging the dust ring, thereby causing water to enter the oil cylinder guide sleeve along the piston rod, causing rust, and then pulling the piston rod and main seal, causing leakage of the oil cylinder. It has the advantages of preventing water and pollutants from entering the oil cylinder, good protection effect and long service life. However, the piston rod of this type of oil cylinder is in an exposed state after extension and contraction. When loading and unloading at the port, it is easily corroded by seawater, causing damage to the piston rod, thereby reducing the service life of the oil cylinder.

[0005] In summary, the present invention provides a seawater-proof device for a barge oil cylinder to solve the above-mentioned problems. Utility Model Content

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A barge oil cylinder seawater protection device includes an oil cylinder assembly, which includes a cylinder barrel, an end cover and a rod head. The end cover is installed at one end of the cylinder barrel, and a protective assembly is installed between the end cover and the rod head. The protective assembly includes a bellows, a connecting flange, a gasket and a pressure cover. There are two connecting flanges and two gaskets, which are respectively fixed to the two ends of the bellows. The two connecting flanges are respectively threadedly connected to the rod head and the pressure cover by bolts. The pressure cover is threadedly connected to the end cover by bolts. The gasket is used to seal the connection between the protective assembly and the oil cylinder assembly. A sealing assembly is installed at one end of the inner cavity of the cylinder barrel, and the sealing assembly is used to provide sealing for the inner cavity of the cylinder barrel.

[0008] Furthermore, in the present invention, the sealing assembly includes a guide sleeve, a key, a Y-shaped sealing ring, a Variseal waterproof ring, a Gly ring and a U-shaped sealing ring. The guide sleeve is installed in the inner cavity of the guide sleeve through the key, and the Y-shaped sealing ring is sleeved on the surface of the guide sleeve.

[0009] Furthermore, in the present invention, the Variseal waterproof ring, Gly ring and U-shaped sealing ring are all installed in the inner cavity of the guide sleeve, and the surface of the Y-shaped sealing ring contacts the inner wall of the cylinder.

[0010] Furthermore, in the present invention, the oil cylinder assembly further includes a bottom cover, a piston, a plug rod and an interface, and the piston and the plug rod are both installed in the inner cavity of the cylinder.

[0011] Furthermore, in the present invention, the bottom cover is located at the other end of the cylinder and is threadedly connected to the cylinder, one end of the plug rod is fixedly connected to the piston, and the other end of the plug rod passes through the sealing assembly and extends to the outside of the cylinder, and the inner walls of the universal seal ring, the grid ring and the U-shaped sealing ring are all in contact with the surface of the plug rod.

[0012] Furthermore, in the present invention, one end of the interface is fixedly connected to the end of the plug rod located outside the cylinder, and the other end of the interface extends to the inner cavity of the rod head and is threadedly connected to the inner cavity of the rod head.

[0013] Beneficial effects: The utility model has the following beneficial effects:

[0014] The utility model provides protection for the plug rod by arranging a bellows, a connecting flange, a gasket and a pressure cover. The two ends of the bellows are fixed to the rod head and the pressure cover respectively through the connecting flange. When the plug rod is extended or retracted, the bellows is driven to follow the movement, thereby protecting the plug rod and preventing the plug rod from being corroded and damaged by seawater, thereby effectively improving the service life of the oil cylinder. By arranging a sealing component, the inner cavity of the cylinder barrel is sealed, thereby preventing the piston from being damaged by contamination, and effectively improving the service life of the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the utility model in which the oil cylinder assembly and the protective assembly are separated;

[0017] Figure 3 This is a structural diagram of the utility model in which the oil cylinder assembly and the sealing assembly are separated;

[0018] Figure 4 It is a schematic structural diagram of the explosion state of the sealing component of the utility model.

[0019] In the picture:

[0020] 1. Cylinder assembly; 101. Cylinder barrel; 102. End cover; 103. Bottom cover; 104. Piston; 105. Plug rod; 106. Rod head; 107. Interface; 2. Protective assembly; 201. Bellows; 202. Connecting flange; 203. Gasket; 204. Gland; 3. Sealing assembly; 301. Guide sleeve; 302. Key; 303. Y-type sealing ring; 304. Pan seal ring; 305. Gly ring; 306. U-type sealing ring. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the present invention, specific embodiments are given and described as follows in conjunction with the accompanying drawings. Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily defined to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not limited to any implementation method. In addition, some aspects disclosed in the present invention can be used alone or in any appropriate combination with other aspects disclosed in the present invention.

[0022] Example 1

[0023] like Figure 1-4The figure shows the first embodiment of the present invention, which provides a barge oil cylinder seawater protection device, including an oil cylinder assembly 1, the oil cylinder assembly 1 includes a cylinder barrel 101, an end cover 102 and a rod head 106, the end cover 102 is installed at one end of the cylinder barrel 101, and a protective assembly 2 is installed between the end cover 102 and the rod head 106, the protective assembly 2 includes a bellows 201, a connecting flange 202, a gasket 203 and a pressure cover 204, the number of the connecting flanges 202 and the gasket 203 are both two, and are respectively fixed to the two ends of the bellows 201, the two connecting flanges 202 are respectively threadedly connected to the rod head 106 and the pressure cover 204 by bolts, the pressure cover 204 is threadedly connected to the end cover 102 by bolts, the gasket 203 is used to seal the connection between the protective assembly 2 and the oil cylinder assembly 1, and a sealing assembly 3 is installed at one end of the inner cavity of the cylinder barrel 101, and the sealing assembly 3 is used to provide sealing for the inner cavity of the cylinder barrel 101.

[0024] like Figure 1-4 As shown, the bellows 201 is sleeved on the surface of the plug rod 105, the plug rod 105 is connected to the rod head 106 through the interface 107, the pressure cover 204 is fixed to the surface of the end cover 102 by bolts, and then the two connecting flanges 202 are fixed to the rod head 106 and the pressure cover 204 respectively by bolts, and the gasket 203 is located on the contact surface of the rod head 106 and the pressure cover 204 and the connecting flange 202. When the plug rod 105 is extended or retracted, the bellows 201 is driven to follow the movement, thereby protecting the plug rod 105 and preventing the plug rod 105 from being corroded and damaged by seawater, thereby effectively improving the service life of the oil cylinder.

[0025] Example 2

[0026] Reference Figure 1-4 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0027] In this embodiment, the sealing assembly 3 includes a guide sleeve 301, a key 302, a Y-shaped sealing ring 303, a Variseal waterproof ring 304, a Gly ring 305 and a U-shaped sealing ring 306. The guide sleeve 301 is installed in the inner cavity of the guide sleeve 301 through the key 302, and the Y-shaped sealing ring 303 is sleeved on the surface of the guide sleeve 301.

[0028] The Variseal waterproof ring 304 , the Gly ring 305 and the U-shaped sealing ring 306 are all installed in the inner cavity of the guide sleeve 301 , and the surface of the Y-shaped sealing ring 303 contacts the inner wall of the cylinder 101 .

[0029] The oil cylinder assembly 1 further includes a bottom cover 103 , a piston 104 , a plug rod 105 and an interface 107 . The piston 104 and the plug rod 105 are both installed in the inner cavity of the cylinder barrel 101 .

[0030] The bottom cover 103 is located at the other end of the cylinder 101 and is threadedly connected to the cylinder 101. One end of the plug rod 105 is fixedly connected to the piston 104. The other end of the plug rod 105 passes through the sealing assembly 3 and extends to the outside of the cylinder 101. The inner walls of the universal seal ring 304, the grid ring 305 and the U-shaped sealing ring 306 are all in contact with the surface of the plug rod 105.

[0031] One end of the interface 107 is fixedly connected to the end of the plug rod 105 located outside the cylinder 101 , and the other end of the interface 107 extends to the inner cavity of the rod head 106 and is threadedly connected to the inner cavity of the rod head 106 .

[0032] like Figure 1-4 As shown, the guide sleeve 301 can not only provide guidance for the plug rod 105, but also seal the inner cavity of the cylinder 101. The key 302 and the Y-shaped sealing ring 303 are used to seal the connection between the cylinder 101 and the guide sleeve 301. The key 302 can also fix the guide sleeve 301 to the cylinder 101. The universal waterproof ring 304, the grid ring 305 and the U-shaped sealing ring 306 are used to seal the connection between the plug rod 105 and the guide sleeve 301, thereby achieving sealing of the inner cavity of the cylinder 101 and preventing the piston 104 from being contaminated. The end cover 102 and the bottom cover 103 can seal the inner cavity of the cylinder 101, and the plug rod 105 can be conveniently connected to the rod head 106 through the interface 107.

[0033] When in use, the bellows 201 is sleeved on the surface of the plug rod 105, the plug rod 105 is connected to the rod head 106 through the interface 107, the pressure cover 204 is fixed to the surface of the end cover 102 by bolts, and then the two connecting flanges 202 are fixed to the rod head 106 and the pressure cover 204 by bolts respectively. The gasket 203 is located on the contact surface between the rod head 106 and the pressure cover 204 and the connecting flange 202. When the plug rod 105 is extended or retracted, the bellows 201 is driven to follow the movement, thereby protecting the plug rod 105 and preventing seawater from damaging the plug rod 105. In the event of corrosion damage, the guide sleeve 301 can not only provide guidance for the plug rod 105, but also seal the inner cavity of the cylinder 101. The key 302 and the Y-shaped sealing ring 303 are used to seal the connection between the cylinder 101 and the guide sleeve 301. The key 302 can also fix the guide sleeve 301 to the cylinder 101. The universal waterproof ring 304, the grid ring 305 and the U-shaped sealing ring 306 are used to seal the connection between the plug rod 105 and the guide sleeve 301, thereby achieving the sealing of the inner cavity of the cylinder 101.

[0034] The standard parts used in this application document can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field. In addition, this application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0035] While the present invention has been described above with reference to preferred embodiments, this is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A barge oil cylinder anti-seawater device, comprising an oil cylinder assembly (1), characterized in that: The oil cylinder assembly (1) comprises a cylinder barrel (101), an end cover (102) and a rod head (106); the end cover (102) is mounted on one end of the cylinder barrel (101); a protective assembly (2) is mounted between the end cover (102) and the rod head (106); the protective assembly (2) comprises a bellows (201), a connecting flange (202), a gasket (203) and a pressure cover (204); the connecting flange (202) and the gasket (203) are both in number and are fixed to the respective The two connecting flanges (202) are respectively threadedly connected to the rod head (106) and the pressure cover (204) through bolts, and the pressure cover (204) is threadedly connected to the end cover (102) through bolts. The gasket (203) is used to seal the connection between the protective component (2) and the cylinder component (1). A sealing component (3) is installed at one end of the inner cavity of the cylinder (101), and the sealing component (3) is used to provide sealing for the inner cavity of the cylinder (101).

2. The barge oil cylinder anti-seawater device according to claim 1, characterized in that: The sealing assembly (3) comprises a guide sleeve (301), a key (302), a Y-shaped sealing ring (303), a universal waterproof ring (304), a Gly ring (305) and a U-shaped sealing ring (306); the guide sleeve (301) is mounted on the inner cavity of the guide sleeve (301) via the key (302); and the Y-shaped sealing ring (303) is sleeved on the surface of the guide sleeve (301).

3. The device for preventing seawater from opening the oil cylinder of a barge as claimed in claim 2, characterized in that: The pan seal ring (304), the grid ring (305) and the U-shaped sealing ring (306) are all installed in the inner cavity of the guide sleeve (301), and the surface of the Y-shaped sealing ring (303) contacts the inner wall of the cylinder (101).

4. The device for preventing seawater from opening a barge oil cylinder as claimed in claim 2, characterized in that: The oil cylinder assembly (1) further comprises a bottom cover (103), a piston (104), a plug rod (105) and an interface (107); the piston (104) and the plug rod (105) are both installed in the inner cavity of the cylinder barrel (101).

5. The device for preventing seawater from opening the oil cylinder of a barge as claimed in claim 4, characterized in that: The bottom cover (103) is located at the other end of the cylinder (101) and is threadedly connected to the cylinder (101). One end of the plug rod (105) is fixedly connected to the piston (104). The other end of the plug rod (105) passes through the sealing assembly (3) and extends to the outside of the cylinder (101). The inner walls of the universal seal ring (304), the grid ring (305) and the U-shaped sealing ring (306) are all in contact with the surface of the plug rod (105).

6. The device for preventing seawater from opening a barge oil cylinder as claimed in claim 4, characterized in that: One end of the interface (107) is fixedly connected to the end of the plug rod (105) located outside the cylinder (101), and the other end of the interface (107) extends to the inner cavity of the rod head (106) and is threadedly connected to the inner cavity of the rod head (106).

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