A device for removing an engine piston ring

Abstract

The utility model belongs to piston ring dismounting technical field, and disclose a kind of dismounting device of engine piston ring, including handle, one end of handle is fixedly connected with fixed frame, the inner wall of fixed frame is fixedly connected with first guide rod, the surface of first guide rod is slidably equipped with two moving blocks, and moving block slides in fixed frame, the front end of two moving blocks is fixedly connected with L-shaped clamping block, and the both ends of fixed frame are movably connected with arc frame. The utility model can be broken two metal hoses to adjust two arc frames to be outside the piston ring of dismounting, then personnel hand handle two L-shaped clamping blocks are placed in the opening of piston ring, and push push block drives protruding portion and sliding block to move towards front, so that two connecting rods respectively push two moving blocks to move to two sides, and then two L-shaped clamping blocks open the opening of piston ring, and then personnel do not need to continuously hand push push block, so that dismounting after opening piston ring.

Description

Technical Field

[0001] This utility model belongs to the field of piston ring disassembly technology, specifically a disassembly device for engine piston rings. Background Technology

[0002] Piston rings are metal rings used to fit inside piston grooves. There are two types of piston rings: compression rings and oil rings. Compression rings are used to seal the combustible mixture in the combustion chamber, while oil rings are used to scrape off excess oil from the cylinder. A piston ring is a metal elastic ring with a large outward expansion deformation. It is fitted into an annular groove with a corresponding cross-section. The reciprocating and rotating piston rings rely on the pressure difference of gas or liquid to form a seal between the outer surface of the ring and the cylinder, as well as between the ring and one side of the ring groove.

[0003] A search revealed that patent CN223071311U discloses a piston ring disassembly device, relating to the technical field of piston ring disassembly devices. The device includes a guide rail, a handle, an arc-shaped clamping plate, and a fixing ring. The guide rail has a groove on its front side, and a servo motor is fixedly mounted on its upper end. The power output end of the servo motor is fixedly connected to a rotating shaft, which is rotatably connected to the guide rail. A first bevel gear is fixedly connected to the lower end of the rotating shaft. Activating the servo motor moves the left and right sets of support blocks to the left and right sides, thus stably opening the piston ring for easy disassembly. The depth of the support blocks within the slots is adjustable to accommodate different lateral lengths of piston ring openings. During disassembly, the piston ring is opened, and its outer side is engaged in the groove. Under the action of a spring rod, the arc-shaped clamping plate clamps and fixes the piston ring, preventing it from falling off the disassembly device and preventing injury to workers if the piston ring breaks.

[0004] While existing technologies can move the left and right support blocks to the left and right sides by activating a servo motor, thus stably opening the piston rings, they require an additional power supply, making them inflexible and inconvenient to use. Furthermore, the fixed-size retaining rings are difficult to adapt to piston rings of different sizes, reducing their practicality. Therefore, we provide an engine piston ring disassembly device to solve these problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a device for disassembling engine piston rings.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a disassembly device for engine piston rings, comprising a handle, a fixed frame fixedly connected to one end of the handle, a first guide rod fixedly connected to the inner wall of the fixed frame, two movable blocks slidably sleeved on the surface of the first guide rod, and the movable blocks sliding within the fixed frame, an L-shaped locking block fixedly connected to the front end of each of the two movable blocks, an arc-shaped frame movably connected to both ends of the fixed frame, a groove formed on the surface of the handle, a sliding block slidably disposed within the groove, a slot formed on the back of the fixed frame, a connecting rod hinged between the back of each of the two movable blocks and the front end of the sliding block, a protrusion fixedly connected to the sliding block, and a positioning mechanism for limiting the displacement of the sliding block within the groove provided within the protrusion.

[0007] Preferably, both ends of the fixed frame are fixedly connected to flexible metal hoses, and one end of each flexible metal hose is connected to the side of the two arc-shaped frames respectively.

[0008] Preferably, the positioning mechanism includes a slot, which is formed between the sliding block and the protrusion. The inner bottom wall of the sliding block has slots arranged at equal intervals. A locking plate is slidably disposed in the slot, and the bottom end of the locking plate passes through the sliding block and is locked into the slot. A second guide rod is provided through the top end of the protrusion, and the bottom end of the second guide rod is connected to the locking plate. A compression spring is sleeved on the surface of the second guide rod, and the two ends of the compression spring are respectively fixed to the inner top wall of the protrusion and the upper surface of the locking plate.

[0009] Preferably, a spring is fixedly connected to the front end of the sliding block, and the front end of the spring is fixedly connected to the back of the fixed frame.

[0010] Preferably, a push block is fixedly connected to the surface of the protrusion, and the push block is made of silicone.

[0011] Preferably, the end of the handle away from the fixed frame is fixedly connected to a base, and the surface of the handle is provided with anti-slip texture.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, through the coordinated arrangement of a fixed frame, handle, push block, moving block, L-shaped locking block, slide groove, sliding block, slot, connecting rod, protrusion, and positioning mechanism, allows for the adjustment of two arc-shaped frames to the outside of the piston ring to be disassembled by bending two flexible metal hoses. This allows for adjustment according to different piston ring sizes. Then, the operator holds the handle and places the two L-shaped locking blocks at the opening of the piston ring, pushing the push block to move the protrusion and sliding block forward. This causes the two connecting rods to push the two moving blocks to the sides, thus opening the piston ring opening with the two L-shaped locking blocks. The operator can then disassemble the piston ring without continuously pushing the push block, as the piston ring is now positioned between the two arc-shaped frames, preventing it from popping out. After disassembly, the operator simply pulls the second guide rod upwards to slide the sliding block backwards, causing the two moving blocks to retract and reset, facilitating subsequent disassembly of other piston rings. All these operations require no external power supply, making the operation more flexible, convenient, and labor-saving. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the front-end view structure of this utility model; Figure 3 This is a side sectional view of the present invention; Figure 4 This is a schematic diagram showing the connection between the sliding block and the two movable blocks of this utility model.

[0014] In the diagram: 1. Fixed frame; 2. Handle; 3. L-shaped locking block; 4. Base; 5. Slide groove; 6. Slot; 7. Connecting rod; 8. Protrusion; 9. Spring; 10. Moving block; 11. Metal flexible hose; 12. Arc-shaped frame; 13. Pushing block; 14. Second guide rod; 15. Sliding block; 16. Locking plate; 17. Compression spring; 18. Locking groove; 19. First guide rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1, such as Figure 1-4As shown, this embodiment proposes an engine piston ring disassembly device, including a handle 2, one end of which is fixedly connected to a fixed frame 1, and the inner wall of the fixed frame 1 is fixedly connected to a first guide rod 19. Two moving blocks 10 are slidably sleeved on the surface of the first guide rod 19, and the moving blocks 10 slide within the fixed frame 1. The front ends of the two moving blocks 10 are fixedly connected to L-shaped locking blocks 3. Arc-shaped frames 12 are movably connected to both ends of the fixed frame 1. A groove 5 is provided on the surface of the handle 2, and a sliding block 15 is slidably disposed in the groove 5. A slot 6 is provided on the back of the fixed frame 1. A connecting rod 7 is hinged between the back of the two moving blocks 10 and the front end of the sliding block 15. A protrusion 8 is fixedly connected to the sliding block 15, and a positioning mechanism for limiting the displacement of the sliding block 15 within the groove 5 is provided in the protrusion 8. The mechanics, parts and equipment in this device are all conventional models in the prior art, and will not be described in detail here.

[0017] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details: like Figure 1 and Figure 2 As shown, both ends of the fixed frame 1 are fixed with metal hoses 11. One end of each metal hose 11 is connected to the side of the two arc-shaped frames 12. The metal hoses 11 are flexible, so it is easy for personnel to swing the metal hoses 11 to adjust the position of the arc-shaped frames 12. It can adapt to piston rings of different specifications for limiting, making it more flexible and convenient to use. In addition, the metal hoses 11 are existing mature components, specifically referring to the connecting rod in the mobile phone holder.

[0018] like Figures 1 to 4 As shown, the positioning mechanism includes a slot 18, which is formed between the sliding block 15 and the protrusion 8. The inner bottom wall of the sliding block 5 has slots 18 arranged at equal intervals. A locking plate 16 is slidably disposed within the slot 18, with its bottom end penetrating the sliding block 15 and engaging with the slot 18. A second guide rod 14 is passed through the top of the protrusion 8, and its bottom end is connected to the locking plate 16. A compression spring 17 is sleeved on the surface of the second guide rod 14, with both ends of the spring 17 fixed to the inner top wall of the protrusion 8 and the upper surface of the locking plate 16, respectively. With this structure, when a person pushes the protrusion 8 forward... When the sliding block 15 moves together, the locking plate 16 will continuously move up and down during the movement until the protrusion 8 stops moving. Then the locking plate 16 will be locked into the corresponding slot 18, preventing the protrusion 8 and the sliding block 15 from moving backward. This eliminates the need for personnel to continuously push the protrusion 8, making it more flexible to use. When it is necessary to reset the sliding block 15, simply pull the second guide rod 14 upward to release the locking plate 16 from the slot 18. Then the sliding block 15 will slide back to its normal position and reset, thereby pulling the two moving blocks 10 closer together to facilitate the disassembly and use of the remaining piston rings.

[0019] like Figure 1 , Figure 3 and Figure 4 As shown, a spring 9 is fixedly connected to the front end of the sliding block 15, and the front end of the spring 9 is fixedly connected to the back of the fixed frame 1. With the setting of the spring 9, when the restriction on the displacement of the sliding block 15 is released, the sliding block 15 can be easily reset by the elastic force of the spring 9, thereby resetting the two moving blocks 10. When the sliding block 15 moves forward, it will squeeze and compress the spring 9, which improves the locking and fastening of the card plate 16 and the card slot 18.

[0020] like Figures 1 to 4 As shown, a push block 13 is fixedly connected to the surface of the protrusion 8, and the push block 13 is made of silicone. With the push block 13 in place, when a person pushes the protrusion 8 to move, the person's fingers can directly push the push block 13, so that the push block 13 will not cause discomfort to the person's fingers.

[0021] like Figure 1 and Figure 2 As shown, the end of the handle 2 away from the fixed frame 1 is fixedly connected to the base 4, and the surface of the handle 2 is provided with anti-slip texture. With the base 4, after the device is used, it can be supported vertically by the base 4, so that it can be picked up and used by personnel later. With the anti-slip texture, it can be ensured that the personnel will not easily slip when holding the handle 2, which is conducive to the disassembly operation of the piston ring.

[0022] The working principle and usage process of this utility model are as follows: First, the operator moves the two metal hoses 11 to adjust the two arc-shaped frames 12 to be outside the piston ring to be disassembled. Then, the operator places the two L-shaped locking blocks 3 at the opening of the piston ring. The operator then holds the handle 2 and pushes the pushing block 13 to move the protrusion 8 and the sliding block 15 forward, so that the two connecting rods 7 push the two moving blocks 10 to the sides respectively, thereby opening the opening of the piston ring with the two L-shaped locking blocks 3. Then, the operator does not need to continuously push the pushing block 13 to disassemble the piston ring after it is opened. At this time, the piston ring will be between the two arc-shaped frames 12. After the piston ring is disassembled, the operator only needs to pull the second guide rod 14 upward to slide the sliding block 15 to the rear side. The two moving blocks 10 will also move closer and reset, so as to facilitate the subsequent disassembly of other piston rings.

[0023] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing engine piston rings, comprising a handle (2), characterized in that: One end of the handle (2) is fixedly connected to a fixed frame (1). The inner wall of the fixed frame (1) is fixedly connected to a first guide rod (19). Two moving blocks (10) are slidably sleeved on the surface of the first guide rod (19), and the moving blocks (10) slide in the fixed frame (1). The front ends of the two moving blocks (10) are fixedly connected to L-shaped locking blocks (3). Both ends of the fixed frame (1) are movably connected to arc-shaped frames (12). The surface of the handle (2) is provided with a sliding groove (5). A sliding block (15) is slidably arranged in the sliding groove (5). The back of the fixed frame (1) is provided with a slot (6). A connecting rod (7) is hinged between the back of the two moving blocks (10) and the front end of the sliding block (15). A protrusion (8) is fixedly connected to the sliding block (15). A positioning mechanism for limiting the displacement of the sliding block (15) in the sliding groove (5) is provided in the protrusion (8).

2. The engine piston ring disassembly device according to claim 1, characterized in that: Both ends of the fixed frame (1) are fixed with metal hoses (11), and one end of each of the two metal hoses (11) is connected to the side of the two arc-shaped frames (12).

3. The engine piston ring disassembly device according to claim 1, characterized in that: The positioning mechanism includes a slot (18), which is located between the sliding block (15) and the protrusion (8). The inner bottom wall of the sliding block (5) is provided with slots (18) arranged at equal intervals. A card plate (16) is slidably arranged in the slot (18), and the bottom end of the card plate (16) passes through the sliding block (15) and is engaged in the slot (18). A second guide rod (14) is provided through the top end of the protrusion (8), and the bottom end of the second guide rod (14) is connected to the card plate (16). A compression spring (17) is sleeved on the surface of the second guide rod (14), and the two ends of the compression spring (17) are respectively fixed to the inner top wall of the protrusion (8) and the upper surface of the card plate (16).

4. The engine piston ring disassembly device according to claim 1, characterized in that: The front end of the sliding block (15) is fixedly connected to a spring (9), and the front end of the spring (9) is fixedly connected to the back of the fixed frame (1).

5. The engine piston ring disassembly device according to claim 1, characterized in that: The surface of the protrusion (8) is fixedly connected to a push block (13), and the push block (13) is made of silicone.

6. The engine piston ring disassembly device according to claim 1, characterized in that: The handle (2) is fixed to a base (4) at one end away from the fixed frame (1), and the surface of the handle (2) is provided with anti-slip texture.

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