Waterproof sheath structure for oil cylinder of split mud barge

Abstract

The utility model provides a split mud barge oil cylinder waterproof sheath structure, and relates to the technical field of oil cylinder waterproofing, the split mud barge oil cylinder waterproof sheath structure comprises a protective sleeve assembly, the protective sleeve assembly comprises an outer cylinder body and an inner cylinder body, the inner cylinder body is connected in the outer cylinder body in a sliding mode, an elastic block is fixed at the lower end of the outer cylinder body, and the elastic block is in interference fit with the outer surface of a cylinder barrel. The sealing block and the clamping plate can be fixed to the piston rod through cooperation of the threaded rod, the fixing bolt and the connecting plate, then the inner barrel body is connected to the sealing block in a threaded mode, and the cylinder barrel and the piston rod can be integrally protected through the outer barrel body, the inner barrel body, the elastic block, the sealing block and the clamping plate; seawater is difficult to enter the joint of the cylinder barrel and the piston rod, the risk that the joint of the cylinder barrel and the piston rod is corroded by the seawater is effectively reduced, the service life of the oil cylinder is prolonged, and the overall sealing performance of the cylinder barrel and the piston rod is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to an oil cylinder waterproof sheath, concretely to an open-body mud barge oil cylinder waterproof sheath structure, belongs to the oil cylinder waterproof technical field. BACKGROUND

[0002] The open-body mud barge is widely used in the silt transportation operation of river, port and other water areas, has strong carrying capacity and high operation efficiency. Its main structure is composed of a ship body, an oil cylinder system, a conveying device and the like, the oil cylinder system controls the lifting and overturning of the ship body through the hydraulic mode, and ensures the smooth loading and unloading of silt.

[0003] The utility model discloses a kind of hydraulic oil cylinder waterproof sheath structures, when using, PVC plastic-coated cloth is wound around hydraulic oil cylinder, so that mesh groove and mesh strip are buckled, stick fastening band and stick fastening band hook are tightly adhered, finally, the grommet is fixed at the piston rod and cylinder barrel of the hydraulic oil cylinder of the utility model that has been sheathed, the grommet is fixed at small end rubber pad and big end rubber pad.

[0004] The above-mentioned patent protects the cylinder barrel by waterproof cloth. In actual application, it is found that the connecting part of the piston rod and the cylinder barrel is not provided with special protection measures, and the connecting part of the piston rod and the cylinder barrel is easily eroded by seawater, resulting in damage. Therefore, an open-body mud barge oil cylinder waterproof sheath structure is proposed. UTILITY MODEL CONTENTS

[0005] The utility model discloses an open-body mud barge oil cylinder waterproof sheath structure, which can protect the connecting part of the piston rod and the cylinder barrel, effectively reduce the risk of seawater corrosion of the connecting part of the piston rod and the cylinder barrel, prolong the service life of the oil cylinder, and improve the overall sealing performance.

[0006] The utility model discloses a kind of open-body mud barge oil cylinder waterproof sheath structure, including protection sleeve assembly, the protection sleeve assembly includes outer cylinder body and inner cylinder body, the inner cylinder body is slidably connected in outer cylinder body, the lower end of outer cylinder body is fixed with elastic block, the elastic block is in interference fit with the outer surface of cylinder barrel, the inner wall of inner cylinder body is in sliding contact with the outer surface of cylinder barrel, anti-skid assembly is provided on the inner cylinder body, the anti-skid assembly includes fixed sleeve, the fixed sleeve is fixed in the upper end of inner cylinder body, the fixed sleeve is fixed with the evenly distributed anti-skid strip.

[0007] Sealing assembly is provided on the inner cylinder body for fixing the inner cylinder body on the piston rod, the sealing assembly includes two sealing blocks and two clamping plates, the inner contour of the clamping plate is fitted with the outer contour of the sealing block, the inner thread is formed in the sealing block, the outer thread is formed in the upper end of the inner cylinder body, and the sealing block is threadedly connected with the inner cylinder body.

[0008] The sliding hole is slidably connected with a threaded rod, one end of the threaded rod is fixedly connected with a connecting plate, and the other end of the threaded rod is threadedly connected with a fixing bolt.

[0009] The open-body mud barge oil cylinder waterproof sheath structure has the following beneficial effects:

[0010] 1. The open-body mud barge oil cylinder waterproof sheath structure can fix the sealing block and the clamping plate on the piston rod through the cooperation of the threaded rod, the fixing bolt and the connecting plate, then threadedly connect the inner cylinder on the sealing block, and protect the cylinder barrel and the piston rod as a whole through the outer cylinder, the inner cylinder, the elastic block, the sealing block and the clamping plate, so that seawater is difficult to enter the connecting position of the cylinder barrel and the piston rod, the risk of corrosion of the connecting position of the cylinder barrel and the piston rod is effectively reduced, the service life of the oil cylinder is prolonged, and the sealing performance of the cylinder barrel and the piston rod as a whole is good. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0012] Figure 2 It is a sectional view of the internal structure of the outer cylinder and the inner cylinder of the utility model;

[0013] Figure 3 It is a sealing assembly structure schematic view of the utility model;

[0014] Figure 4 It is a Figure 2 It is a structure enlarged schematic view of A in the middle;

[0015] Figure 5 It is a connecting plate and fixing bolt structure schematic view of the utility model.

[0016] BRIEF DESCRIPTION OF DRAWINGS

[0017] 1. The protective sleeve assembly; 101, the outer cylinder; 102, the inner cylinder; 103, the elastic block; 104, the anti-skid assembly; 1041, the fixed sleeve; 1042, the anti-skid strip;

[0018] 2. The sealing assembly; 201, the sealing block; 202, the clamping plate; 203, the sliding hole; 204, the threaded rod; 205, the connecting plate; 206, the fixing bolt; 207, the sealing gasket;

[0019] 3. The cylinder barrel; 4, the piston rod. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0021] With reference to Figures 1-5 The utility model provides an open body mud barge oil cylinder waterproof sheath structure, including protection cover subassembly 1, protection cover subassembly 1 includes outer cylinder 101 and inner cylinder 102, and the inner cylinder 102 is slidably connected in the outer cylinder 101, and the inner cylinder 102 can slide in the outer cylinder 101, and the lower end of the outer cylinder 101 is fixed with elastic block 103, and the outer cylinder 101 is clamped on cylinder barrel 3 through elastic block 103.

[0022] With reference to Figure 1 And Figure 2 Elastic block 103 and the outer surface of cylinder barrel 3 are interference fit, and the inner wall of inner cylinder 102 and the outer surface of cylinder barrel 3 are in sliding contact, specifically, the outer cylinder 101 can be fixed on the outer cylinder 101 by elastic block 103, and the sealing effect between the outer cylinder 101 and cylinder barrel 3 can be improved by elastic block 103, to avoid seawater from the gap between the outer cylinder 101 and cylinder barrel 3 into the inside of the outer cylinder 101.

[0023] With reference to Figure 2 And Figure 3 Anti-skid assembly 104 is arranged on the inner cylinder 102, and the anti-skid assembly 104 includes a fixing sleeve 1041 fixed on the upper end of the inner cylinder 102, and uniform distribution of anti-skid strips 1042 are fixed on the fixing sleeve 1041, the fixing sleeve 1041 and the anti-skid strips 1042 provide a reasonable force point for rotating the inner cylinder 102, which is more convenient when rotating the inner cylinder 102, and the anti-skid strips 1042 can reduce the friction between the hands and the fixing sleeve 1041.

[0024] With reference to Figure 3 And Figure 5 Sealing assembly 2 for fixing the inner cylinder 102 on the piston rod 4 is arranged on the inner cylinder 102, and the sealing assembly 2 includes two sealing blocks 201 and two clamping plates 202, the inner contour of the clamping plate 202 is fitted with the outer contour of the sealing block 201, and an inner thread is formed in the sealing block 201, and an outer thread is formed in the upper end of the inner cylinder 102.

[0025] The sealing block 201 is threadedly connected with the inner cylinder body 102, when the piston rod 4 is in the extended state, the inner cylinder body 102 will be moved by the sealing gasket 207, the sealing block 201 and the clamping plate 202, the fixed sleeve 1041 will gradually move away from the outer cylinder body 101, the inner cylinder body 102 can be disassembled from the sealing block 201 by rotating the inner cylinder body 102 through the fixed sleeve 1041, and the inner cylinder body 102 slides in the outer cylinder body 101 under the action of gravity, at this time, the connection between the cylinder barrel 3 and the piston rod 4 can be observed to check whether seawater penetrates into the connection between the cylinder barrel 3 and the piston rod 4.

[0026] Please refer to Figure 3 The clamping plate 202 is provided with a sliding hole 203, a threaded rod 204 is slidably connected in the sliding hole 203, a connecting plate 205 is fixed to one end of the threaded rod 204, a fixed bolt 206 is threadedly connected to the other end of the threaded rod 204, and a sealing gasket 207 is fixed to the sealing block 201 and is in close contact with the outer surface of the piston rod 4.

[0027] Working principle: when in use, first, the two sealing blocks 201 are sleeved on the piston rod 4, then the two clamping plates 202 are sleeved on the sealing blocks 201, the threaded rod 204 is inserted into the sliding hole 203, the two clamping plates 202 are fixed together through the fixed bolt 206, and then the sealing block 201 and the sealing gasket 207 are fixed on the piston rod 4 through the two clamping plates 202.

[0028] Then the inner cylinder body 102 is threadedly connected with the sealing block 201, the cylinder barrel 3 and the piston rod 4 can be protected as a whole by the outer cylinder body 101, the inner cylinder body 102, the elastic block 103, the sealing block 201 and the clamping plate 202, so that seawater is difficult to enter the connection between the cylinder barrel 3 and the piston rod 4, the risk of corrosion of the connection between the cylinder barrel 3 and the piston rod 4 by seawater is effectively reduced, the service life of the oil cylinder is prolonged, and the sealing performance of the cylinder barrel 3 and the piston rod 4 as a whole is good.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An open body barge oil cylinder waterproof sheath structure, comprising a protective sleeve assembly (1), characterized in that: The protective sleeve assembly (1) comprises an outer cylinder (101) and an inner cylinder (102), the inner cylinder (102) is slidingly connected in the outer cylinder (101), the lower end of the outer cylinder (101) is fixed with an elastic block (103), the inner cylinder (102) is provided with a sealing assembly (2) for fixing the inner cylinder (102) on the piston rod (4); The sealing assembly (2) comprises two sealing blocks (201) and two clamping plates (202), the clamping plate (202) is provided with a sliding hole (203), the sliding hole (203) is slidingly connected with a threaded rod (204), one end of the threaded rod (204) is fixed with a connecting plate (205), the other end of the threaded rod (204) is threadedly connected with a fixing bolt (206).

2. The open-body barge oil cylinder waterproof sheath structure according to claim 1, characterized in that: The sealing block (201) is fixed with a sealing gasket (207), and the sealing gasket (207) is attached to the outer surface of the piston rod (4).

3. The open-body barge oil cylinder waterproof sheath structure according to claim 1, characterized in that: The sealing block (201) is provided with an inner thread, and the upper end of the inner cylinder (102) is provided with an outer thread, and the sealing block (201) is threadedly connected with the inner cylinder (102).

4. The open-body barge oil cylinder waterproof sheath structure according to claim 1, characterized in that: The inner cylinder (102) is provided with an anti-skid assembly (104), and the anti-skid assembly (104) comprises a fixing sleeve (1041) fixed to the upper end of the inner cylinder (102).

5. The open body barge oil cylinder waterproof jacket structure according to claim 1, characterized in that: The elastic block (103) is in interference fit with the outer surface of the cylinder (3), and the inner wall of the inner cylinder (102) is in sliding contact with the outer surface of the cylinder (3).

6. The open-body barge oil cylinder waterproof jacket structure of claim 1, wherein: The inner contour of the clamping plate (202) is attached to the outer contour of the sealing block (201).

7. The open-body barge oil cylinder waterproof jacket structure of claim 4, wherein: The fixing sleeve (1041) is fixed with evenly distributed anti-skid strips (1042).

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