Split type sealing ring of hydraulic oil cylinder

Abstract

The utility model discloses a hydraulic oil cylinder split type sealing ring, and particularly relates to the technical field of sealing rings, the hydraulic oil cylinder split type sealing ring comprises a sealing ring body installed between a hydraulic oil cylinder and a piston rod, a connecting hole is formed in the left side of the interior of the sealing ring body, and a limiting plate is hinged to the inner top face of the connecting hole; torsion springs are fixedly installed on the two sides of the inner top face of the connecting hole. According to the split type sealing ring of the hydraulic oil cylinder, in actual work, the connecting strip can be inserted into the connecting hole through the spring, in the inserting process of the connecting strip, the limiting teeth can push the limiting plate to rotate by a certain angle towards the interior of the connecting hole so as to complete assembling of the sealing ring body, and when the sealing ring needs to be disassembled, the sealing ring body can be conveniently disassembled. The fixing block is pulled towards the exterior of the hidden groove, so that the pulling rope drives the limiting plate to rotate, then the shifting block is pushed to drive the connecting strip to move towards the interior of the movable hole, the sealing ring body can be disassembled, and therefore the sealing ring body can be assembled and disassembled conveniently.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and in particular to a split-type sealing ring for hydraulic cylinders. Background Technology

[0002] A hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy for reciprocating linear motion. It eliminates the need for a speed reduction device, eliminates transmission backlash, and provides smooth movement, making it widely used in the hydraulic systems of various machines. A common hydraulic cylinder includes a cylinder body, piston, and piston rod. The piston rod is typically equipped with a separate sealing ring that engages with the cylinder, ensuring a sealed cylinder cavity. This separate sealing ring effectively prevents external water and contaminants from entering the cylinder, avoiding premature failure or damage to the sealing system.

[0003] Currently, when installing split-type sealing rings, it is necessary to insert both ends of the split-type sealing ring and then fit the spring into the groove on the outer surface of the split-type sealing ring, which makes assembly and disassembly inconvenient. Therefore, in order to solve the above defects, the inventor proposes a split-type sealing ring for hydraulic cylinders. Utility Model Content

[0004] The main purpose of this utility model is to provide a split-type sealing ring for hydraulic cylinders, which can effectively solve the problem that the assembly and disassembly of the split-type sealing ring in the prior art are inconvenient.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A split-type sealing ring for a hydraulic cylinder includes a sealing ring body installed between the hydraulic cylinder and the piston rod. A connecting hole is provided on the left side of the interior of the sealing ring body. A limiting plate is hinged to the inner top surface of the connecting hole. Torsion springs are fixedly installed on both sides of the inner top surface of the connecting hole, and both torsion springs are fixedly connected to the limiting plate.

[0007] The sealing ring body has a movable hole on the right side inside, and a spring is fixedly installed inside the movable hole. A connecting strip is fixedly installed at one end of the spring near the opening of the movable hole. A part of the connecting strip is located inside the movable hole, and the other part of the connecting strip is located outside the movable hole.

[0008] Preferably, a connecting groove is provided on one side of the outer top surface of the connecting strip, and multiple limiting teeth are fixedly installed inside the connecting groove.

[0009] Preferably, a groove is provided on one side of the outer top surface of the sealing ring body, and the groove communicates with the movable hole. A lever is fixedly installed on one side of the outer top surface of the connecting strip, and the lever is located inside the groove.

[0010] Preferably, a hidden groove is provided on one side of the outer top surface of the sealing ring body, a fixing block is provided inside the hidden groove, and a connecting rope is fixedly installed on the bottom surface of the fixing block.

[0011] Preferably, the end of the connecting rope away from the fixing block extends into the connecting hole, and the end of the connecting rope extending into the connecting hole is fixedly connected to the limiting plate.

[0012] Preferably, mounting grooves are provided on both sides of the outer surface of the sealing ring body, and multiple spring pieces are attached to the inside of each of the two mounting grooves.

[0013] Preferably, the cross-sectional shape of the movable hole and the cross-sectional shape of the connecting hole are both arc-shaped.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model discloses a split-type sealing ring for hydraulic cylinders. In actual operation, a spring can insert the connecting strip into the connecting hole via a connecting strip. During the insertion process, the limiting teeth will push the limiting plate to rotate at a certain angle towards the inside of the connecting hole to complete the assembly of the sealing ring body. When disassembly is required, the fixing block is pulled outwards from the hidden groove to make the traction rope drive the limiting plate to rotate. Then, the push block is pushed to move the connecting strip into the movable hole, thereby disassembling the sealing ring body. This facilitates the assembly and disassembly of the sealing ring body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection hole structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting strip structure of this utility model;

[0019] Figure 4 This is a top view of the sealing ring body of this utility model;

[0020] Figure 5 This is a schematic diagram of the mounting groove structure of this utility model.

[0021] In the diagram: 1. Sealing ring body; 101. Movable hole; 102. Spring; 103. Connecting strip; 104. Connecting hole; 105. Limiting plate; 106. Torsion spring; 1031. Limiting tooth; 1032. Connecting rope; 1033. Hidden groove; 1034. Fixing block; 1035. Sliding groove; 1036. Push block; 1037. Connecting groove; 1011. Mounting groove; 1012. Spring piece. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] This utility model discloses a split-type sealing ring for hydraulic cylinders, such as... Figure 1-5 As shown, the device includes a sealing ring body 1 installed between the hydraulic cylinder and the piston rod. The sealing ring body 1 can effectively seal the gap between the hydraulic cylinder and the piston rod to prevent external impurities from entering. A connecting hole 104 is provided on the left side of the inside of the sealing ring body 1. A limiting plate 105 is hinged to the inner top surface of the connecting hole 104. The limiting plate 105 can be flipped inside the connecting hole 104.

[0024] Both sides of the inner top surface of the connecting hole 104 are fixedly installed with torsion springs 106, and both torsion springs 106 are fixedly connected to the limiting plate 105. The right side of the inside of the sealing ring body 1 is provided with a movable hole 101, and a spring 102 is fixedly installed inside the movable hole 101. A connecting strip 103 is fixedly installed at one end of the spring 102 near the opening of the movable hole 101. A part of the connecting strip 103 is located inside the movable hole 101, and the other part of the connecting strip 103 is located outside the movable hole 101. The connecting strip 103 can move inside the movable hole 101.

[0025] The cross-sectional shape of the movable hole 101, the cross-sectional shape of the connecting hole 104, and the cross-sectional shape of the connecting strip 103 are all arc-shaped, which allows the connecting strip 103 to move from the inside of the movable hole 101 and insert into the inside of the connecting hole 104. When the connecting strip 103 moves toward the inside of the movable hole 101, it will compress the spring 102.

[0026] A connecting groove 1037 is provided on one side of the outer top surface of the connecting strip 103. Multiple limiting teeth 1031 are fixedly installed inside the connecting groove 1037, and the multiple limiting teeth 1031 are all inclined towards the direction of the movable hole 101.

[0027] During the process of inserting the connecting strip 103 into the connecting hole 104, multiple limiting teeth 1031 will push the limiting plate 105 to rotate at a certain angle multiple times towards the inside of the connecting hole 104. When the connecting strip 103 is fully inserted into the inside of the connecting hole 104, the limiting plate 105 will be inserted into the gap between two of the limiting teeth 1031.

[0028] A groove 1035 is provided on one side of the outer top surface of the sealing ring body 1, and the groove 1035 communicates with the movable hole 101. A lever 1036 is fixedly installed on one side of the outer top surface of the connecting strip 103, and the lever 1036 is located inside the groove 1035. The lever 1036 is completely hidden inside the groove 1035, so that the lever 1036 can avoid affecting the sealing effect of the sealing ring body 1 without affecting the normal movement of the lever 1036.

[0029] The lever 1036 can move inside the slide 1035. When the user pushes the lever 1036 to move inside the slide 1035, it will drive the connecting bar 103 to move.

[0030] A hidden groove 1033 is provided on one side of the outer top surface of the sealing ring body 1. A fixing block 1034 is provided inside the hidden groove 1033. The fixing block 1034 can be fully inserted into the hidden groove 1033 so that the fixing block 1034 does not protrude from the outer surface of the sealing ring body 1, so as to avoid the sealing effect being affected by the protruding fixing block 1034 during the use of the sealing ring body 1.

[0031] A connecting rope 1032 is fixedly installed on the bottom surface of the fixing block 1034, and one end of the connecting rope 1032 away from the fixing block 1034 extends into the inside of the connecting hole 104. The end of the connecting rope 1032 extending into the inside of the connecting hole 104 is fixedly connected to the limiting plate 105.

[0032] When the fixing block 1034 is pulled to move outward from the hidden groove 1033, the connecting rope 1032 will cause the limiting plate 105 to flip. When the fixing block 1034 is released, the torsion spring 106 will cause the limiting plate 105 to reset, so that the fixing block 1034 can be reinserted into the limiting groove.

[0033] When the connecting strip 103 is pulled directly out of the connecting hole 104, the limiting tooth 1031 will push the limiting plate 105 to flip towards the opening of the connecting hole 104. At this time, the connecting rope 1032 will be tightened, and the tightened connecting rope 1032 will prevent the limiting plate 105 from flipping towards the opening of the connecting hole 104, so as to prevent the connecting strip 103 from being pulled out directly without pulling the fixing block 1034.

[0034] The outer surface of the sealing ring body 1 has mounting grooves 1011 on both sides. Multiple spring pieces 1012 are attached inside the two mounting grooves 1011. The multiple spring pieces 1012 can make the sealing ring body 1 fit more tightly against the gap between the hydraulic cylinder and the piston rod through their own elasticity.

[0035] The working principle of this utility model is as follows: When the connecting strip 103 is inserted into the connecting hole 104, during the insertion of the connecting strip 103, multiple limiting teeth 1031 will push the limiting plate 105 to rotate at a certain angle multiple times towards the inside of the connecting hole 104. When the connecting strip 103 is fully inserted into the inside of the connecting hole 104, the limiting plate 105 will be inserted into the gap between two of the limiting teeth 1031 to complete the installation of the sealing ring body 1. When it is necessary to disassemble the sealing ring body 1, the fixing block 1034 is pulled to move towards the outside of the hidden groove 1033, which will cause the connecting rope 1032 to drive the limiting plate 105 to flip. Then, the push block 1036 is pushed to move towards one side of the spring 102 to squeeze the spring and pull the connecting strip 103 out of the inside of the connecting hole 104 and move it into the inside of the movable hole 101 to complete the disassembly of the sealing ring body 1.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split-type sealing ring for a hydraulic cylinder, comprising a sealing ring body (1) installed between the hydraulic cylinder and the piston rod, characterized in that: The sealing ring body (1) has a connecting hole (104) on the left side inside. A limiting plate (105) is hinged to the inner top surface of the connecting hole (104). Torsion springs (106) are fixedly installed on both sides of the inner top surface of the connecting hole (104), and both torsion springs (106) are fixedly connected to the limiting plate (105). The sealing ring body (1) has an open movable hole (101) on the right side inside, and a spring (102) is fixedly installed inside the movable hole (101). A connecting strip (103) is fixedly installed at one end of the spring (102) near the opening of the movable hole (101). A part of the connecting strip (103) is located inside the movable hole (101), and the other part of the connecting strip (103) is located outside the movable hole (101).

2. The hydraulic cylinder split-type sealing ring according to claim 1, characterized in that: A connecting groove (1037) is provided on one side of the outer top surface of the connecting strip (103), and multiple limiting teeth (1031) are fixedly installed inside the connecting groove (1037).

3. A split-type sealing ring for a hydraulic cylinder according to claim 1, characterized in that: The sealing ring body (1) has a groove (1035) on one side of its outer top surface, and the groove (1035) communicates with the movable hole (101). The connecting strip (103) has a toggle block (1036) fixedly installed on one side of its outer top surface, and the toggle block (1036) is located inside the groove (1035).

4. A split-type sealing ring for a hydraulic cylinder according to claim 1, characterized in that: A hidden groove (1033) is provided on one side of the outer top surface of the sealing ring body (1). A fixing block (1034) is provided inside the hidden groove (1033). A connecting rope (1032) is fixedly installed on the bottom surface of the fixing block (1034).

5. A split-type sealing ring for a hydraulic cylinder according to claim 4, characterized in that: The end of the connecting rope (1032) away from the fixing block (1034) extends into the connecting hole (104), and the end of the connecting rope (1032) extending into the connecting hole (104) is fixedly connected to the limiting plate (105).

6. A split-type sealing ring for a hydraulic cylinder according to claim 1, characterized in that: The sealing ring body (1) has mounting grooves (1011) on both sides of its outer surface, and multiple spring pieces (1012) are attached inside the two mounting grooves (1011).

7. A split-type sealing ring for a hydraulic cylinder according to claim 1, characterized in that: The cross-sectional shape of the movable hole (101) and the cross-sectional shape of the connecting hole (104) are both arc-shaped.

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