Oil cylinder anti-seepage structure for barge

Abstract

The utility model provides an oil cylinder water seepage prevention structure for a barge, and relates to the field of oil cylinder water seepage prevention for the barge, the oil cylinder water seepage prevention structure comprises an oil cylinder assembly, the oil cylinder assembly comprises a cylinder barrel, one end of the cylinder barrel is provided with a sealing assembly, the sealing assembly comprises an end cover, a guide sleeve, a clamping key, an O-shaped ring, a sealing ring, a Glyd ring and a U-shaped ring, the end cover is located at one end of the cylinder barrel, the guide sleeve is located at one end of an inner cavity of the cylinder barrel, the clamping key and the O-shaped ring are arranged on the surface of the guide sleeve in a sleeving mode, the sealing ring, the Glyd ring and the U-shaped ring are installed in the inner cavity of the guide sleeve, and the sealing assembly is used for sealing the oil cylinder assembly. By arranging the end cover, the guide sleeve, the clamping key, the O-shaped ring, the sealing ring, the Glyd ring and the U-shaped ring, the sealing effect can be provided for the joint of the cylinder barrel and the piston rod, so that the situation that water permeates into the cylinder barrel to corrode the piston and affect use can be prevented, and the service life of the oil cylinder is effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of anti-water seepage of oil cylinders for barges, in particular to an anti-water seepage structure of oil cylinders for 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, sand 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 the oil cylinder to leak out. It has the advantages of being able to prevent water and pollutants from entering the oil cylinder, good protection effect and long service life. However, the sealing performance of the connection between the piston rod and the cylinder body of this type of oil cylinder is poor, which makes it easy for water to penetrate into the cylinder body and corrode the piston, thereby affecting the use of the oil cylinder.

[0005] In summary, the present invention provides a water-proof structure for an oil cylinder used in a barge 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 water-proof structure for an oil cylinder used for a barge, comprising an oil cylinder assembly, wherein the oil cylinder assembly comprises a cylinder barrel, a sealing assembly is installed at one end of the cylinder barrel, and the sealing assembly comprises an end cover, a guide sleeve, a key, an O-ring, a sealing ring, a Gly ring and a U-ring. The end cover is located at one end of the cylinder barrel, and the guide sleeve is located at one end of the inner cavity of the cylinder barrel. The key and O-ring are both sleeved on the surface of the guide sleeve, and the sealing ring, Gly ring and U-ring are all installed in the inner cavity of the guide sleeve. The sealing assembly is used to provide sealing for the oil cylinder assembly.

[0008] Furthermore, in the present invention, the oil cylinder assembly further includes a bottom cover, a plug rod, a rod head and a piston, and the piston and the plug rod are both installed in the inner cavity of the cylinder.

[0009] Furthermore, in the present invention, one end of the plug rod is threadedly connected to the piston, and the other end of the plug rod passes through the guide sleeve and the end cover and extends to the outside of the cylinder.

[0010] Furthermore, in the present invention, the surfaces of the key and the O-ring are in contact with the inner wall of the cylinder, and the inner walls of the sealing ring, the Gly ring and the U-ring are in contact with the surface of the plug rod.

[0011] Furthermore, in the present invention, the surface of the rod head is fixedly connected to a connecting seat, and the end of the plug rod located outside the cylinder is fixedly connected to a first threaded interface, which extends away from the end of the plug rod to the inner cavity of the connecting seat and is threadedly connected to the inner cavity of the connecting seat.

[0012] Furthermore, in the present invention, both ends of the cylinder are fixedly connected with a second threaded interface, the second threaded interface at one end extends to the inner cavity of the bottom cover and is threadedly connected to the inner wall of the bottom cover, and the second threaded interface at the other end extends to the inner cavity of the end cover and is threadedly connected to the inner cavity of the end cover.

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

[0014] The utility model can provide a sealing effect for the connection between the cylinder barrel and the plug rod by arranging the end cover, the guide sleeve, the key, the O-ring, the sealing ring, the Gly ring and the U-ring, thereby preventing water from penetrating into the interior of the cylinder barrel and corroding the piston, thereby affecting the use, thereby 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 structural diagram of the utility model in which the oil cylinder assembly and the sealing assembly are separated;

[0017] Figure 3This is a schematic structural diagram of the sealing assembly of the utility model in a separated state;

[0018] Figure 4 It is a structural schematic diagram of the plug rod and the rod head in the separated state of the utility model.

[0019] In the picture:

[0020] 1. Cylinder assembly; 101. Cylinder barrel; 102. Bottom cover; 103. Plug rod; 104. Rod head; 105. Piston; 106. Connecting seat; 107. First threaded interface; 108. Second threaded interface; 2. Sealing assembly; 201. End cover; 202. Guide sleeve; 203. Key; 204. O-ring; 205. Sealing ring; 206. Gly ring; 207. U-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 1-4 As shown, it is the first embodiment of the present invention, which provides an anti-water seepage structure of an oil cylinder for a barge, including an oil cylinder assembly 1, the oil cylinder assembly 1 includes a cylinder barrel 101, and a sealing assembly 2 is installed at one end of the cylinder barrel 101. The sealing assembly 2 includes an end cover 201, a guide sleeve 202, a key 203, an O-ring 204, a sealing ring 205, a grid ring 206 and a U-ring 207. The end cover 201 is located at one end of the cylinder barrel 101, and the guide sleeve 202 is located at one end of the inner cavity of the cylinder barrel 101. The key 203 and the O-ring 204 are both sleeved on the surface of the guide sleeve 202, and the sealing ring 205, the grid ring 206 and the U-ring 207 are all installed in the inner cavity of the guide sleeve 202. The sealing assembly 2 is used to provide sealing for the oil cylinder assembly 1.

[0024] like Figure 1-4As shown, the guide sleeve 202 and the end cover 201 can provide guidance for the plug rod 103, the guide sleeve 202 can be fixed by the key 203, the key 203 and the O-ring 204 can provide sealing for the connection between the guide sleeve 202 and the cylinder 101, the end cover 201 is used to close the cylinder 101, the sealing ring 205, the grid ring 206 and the U-ring 207 can seal the connection between the plug rod 103 and the guide sleeve 202, thereby preventing water from penetrating into the interior of the cylinder 101, and an oil inlet and an oil return port are respectively provided at both ends of the surface of the cylinder 101.

[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 oil cylinder assembly 1 further includes a bottom cover 102 , a plug rod 103 , a rod head 104 and a piston 105 . The piston 105 and the plug rod 103 are both installed in the inner cavity of the cylinder barrel 101 .

[0028] One end of the plug rod 103 is threadedly connected to the piston 105 , and the other end of the plug rod 103 passes through the guide sleeve 202 and the end cover 201 and extends to the outside of the cylinder 101 .

[0029] The surfaces of the latch key 203 and the O-ring 204 contact the inner wall of the cylinder 101 , and the inner walls of the sealing ring 205 , the Gly ring 206 and the U-ring 207 contact the surface of the plug rod 103 .

[0030] The surface of the rod head 104 is fixedly connected to a connecting seat 106, and the end of the plug rod 103 located outside the cylinder 101 is fixedly connected to a first threaded interface 107. The first threaded interface 107 extends from the end of the plug rod 103 to the inner cavity of the connecting seat 106 and is threadedly connected to the inner cavity of the connecting seat 106.

[0031] Both ends of the cylinder 101 are fixedly connected with a second threaded interface 108. The second threaded interface 108 at one end extends to the inner cavity of the bottom cover 102 and is threadedly connected to the inner wall of the bottom cover 102. The second threaded interface 108 at the other end extends to the inner cavity of the end cover 201 and is threadedly connected to the inner cavity of the end cover 201.

[0032] like Figure 1-4As shown, the cylinder 101, the bottom cover 102, the plug rod 103, the rod head 104 and the piston 105 are combined to perform telescopic movement through hydraulic transmission, the bottom cover 102 and the end cover 201 can seal the inner cavity of the cylinder 101, and a sealing gasket can be added at the connection between the bottom cover 102 and the cylinder 101. The rod head 104 is used to connect with the hull, and the rod head 104 can be easily disassembled and replaced through the cooperation of the connecting seat 106 and the first threaded interface 107. The setting of the second threaded interface 108 can facilitate the disassembly of the bottom cover 102 and the end cover 201.

[0033] When in use, the cylinder 101, the bottom cover 102, the plug rod 103, the rod head 104 and the piston 105 are combined to perform telescopic movement through hydraulic transmission. The bottom cover 102 and the end cover 201 can seal the inner cavity of the cylinder 101, the guide sleeve 202 and the end cover 201 can provide guidance for the plug rod 103, the guide sleeve 202 can be fixed by the key 203, the key 203 and the O-ring 204 can provide a seal for the connection between the guide sleeve 202 and the cylinder 101, the end cover 201 is used to seal the cylinder 101, the sealing ring 205, the grid ring 206 and the U-ring 207 can seal the connection between the plug rod 103 and the guide sleeve 202, thereby preventing water from seeping into the interior 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 water-proof structure for a barge oil cylinder, comprising an oil cylinder assembly (1), characterized in that: The oil cylinder assembly (1) comprises a cylinder barrel (101), one end of which is provided with a sealing assembly (2), the sealing assembly (2) comprising an end cover (201), a guide sleeve (202), a key (203), an O-ring (204), a sealing ring (205), a grid ring (206) and a U-ring (207), the end cover (201) being located at one end of the cylinder barrel (101), the guide sleeve (202) being located at one end of the inner cavity of the cylinder barrel (101), the key (203) and the O-ring (204) being both sleeved on the surface of the guide sleeve (202), the sealing ring (205), the grid ring (206) and the U-ring (207) being both installed in the inner cavity of the guide sleeve (202), and the sealing assembly (2) being used to provide sealing for the oil cylinder assembly (1).

2. The anti-water seepage structure of the oil cylinder for a barge as claimed in claim 1, characterized in that: The oil cylinder assembly (1) further comprises a bottom cover (102), a plug rod (103), a rod head (104) and a piston (105); the piston (105) and the plug rod (103) are both installed in the inner cavity of the cylinder barrel (101).

3. The anti-water seepage structure of the oil cylinder for a barge as claimed in claim 2, characterized in that: One end of the plug rod (103) is threadedly connected to the piston (105), and the other end of the plug rod (103) passes through the guide sleeve (202) and the end cover (201) and extends to the outside of the cylinder (101).

4. The anti-water seepage structure of the oil cylinder for a barge as claimed in claim 1, characterized in that: The surfaces of the key (203) and the O-ring (204) are in contact with the inner wall of the cylinder (101), and the inner walls of the sealing ring (205), the grid ring (206) and the U-ring (207) are in contact with the surface of the plug rod (103).

5. The anti-water seepage structure of the oil cylinder for a barge as claimed in claim 2, characterized in that: The surface of the rod head (104) is fixedly connected to a connecting seat (106), and one end of the plug rod (103) located outside the cylinder (101) is fixedly connected to a first threaded interface (107), and the first threaded interface (107) extends from the end of the plug rod (103) to the inner cavity of the connecting seat (106) and is threadedly connected to the inner cavity of the connecting seat (106).

6. The anti-water seepage structure of the oil cylinder for a barge as claimed in claim 1, characterized in that: Both ends of the cylinder (101) are fixedly connected with second threaded interfaces (108), wherein the second threaded interface (108) at one end extends to the inner cavity of the bottom cover (102) and is threadedly connected to the inner wall of the bottom cover (102), and the second threaded interface (108) at the other end extends to the inner cavity of the end cover (201) and is threadedly connected to the inner cavity of the end cover (201).

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