Quick detachable piston

Abstract

This utility model discloses a quick-disassembly piston, including a cylinder body. A protrusion is integrally formed on the inner side of the cylinder body. Supports are fixedly installed on both sides of the protrusion. A rotating shaft is fixedly installed on the outer side of the support. Two locking members, arranged vertically, are rotatably mounted on the surface of the rotating shaft. Both locking members are hinged to the rotating shaft. A locking block is fixedly connected to the inner side of each locking member. A piston pin is inserted into the inner side of the protrusion. Both ends of the piston pin are inserted with locking rods. One end of each locking rod has a groove that matches the locking block. This utility model adopts a pin-clamping structure design. When disassembling the piston, the pin can be pulled out and removed simply by unlocking the clamping structure from the outside, thereby disassembling the piston rod. This allows for quick disassembly of the piston without the aid of tools, improving disassembly efficiency and providing convenience and assistance for users.

Description

Technical Field

[0001] This utility model relates to the field of piston assembly technology, and in particular to a quick-assembly and disassembly piston. Background Technology

[0002] A piston is a mechanical part that reciprocates along the cylinder axis within the cylinder of a reciprocating piston internal combustion engine, compressor, pump, or other machinery. It is essentially the central part of a car engine and plays a crucial role in engine startup. However, in practical use, we have found that traditional pistons use a circlip and shaft to connect the connecting rod and cylinder. But once the circlip is attached to the cylinder, it requires special tools for removal and installation. Due to the size of the circlip, the tool easily slips on it during operation, making it difficult to engage the tool and control its deformation. This makes it difficult to remove the circlip from the cylinder, reducing the efficiency of piston disassembly and installation, and making piston disassembly and maintenance inconvenient.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This invention proposes a quick-release piston, which solves the aforementioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A quick-release piston includes a cylinder body. A protrusion is integrally formed on the inner side of the cylinder body. A bracket is fixedly installed on both sides of the protrusion. A rotating shaft is fixedly installed on the outer side of the bracket. Two locking members distributed vertically are rotatably installed on the surface of the rotating shaft. Both locking members are hinged to the rotating shaft. A locking block is fixedly connected to the inner side of the locking member. A piston shaft pin is inserted into the inner side of the protrusion. Both ends of the piston shaft pin are inserted with locking rods. One end of the surface of the locking rod has a locking groove that matches the locking block.

[0006] The present invention further comprises the following for a quick-assembly piston as described above: both ends of the piston pin are provided with movable cavities, and one end of the catch rod is slidably installed in the movable cavity.

[0007] The present invention provides a quick-release piston as described above, further comprising: a spring fixedly connected to one end of the locking rod, and the end of the spring away from the locking rod fixedly connected to the inner wall of the piston shaft pin.

[0008] The present invention, as described above, is a quick-release piston, further comprising: a protective ring sleeved on the surface of the piston pin, and a piston connecting rod sleeved on the surface of the protective ring.

[0009] The present invention further comprises the following for a quick-release piston as described above: a piston cover is threadedly installed on the top of the cylinder, and the top of the piston cover has an opening adapted to the piston connecting rod.

[0010] The present invention provides a quick-release piston as described above, further comprising: multiple piston ring grooves formed on the surface of the cylinder, wherein piston rings are engaged inside the piston ring grooves.

[0011] The present invention provides a quick-release piston as described above, further comprising: a connecting rod sleeve detachably mounted on the top of the piston connecting rod.

[0012] In summary, the beneficial effects of this utility model are as follows: 1. This utility model adopts a structure design for clamping the pin shaft. When disassembling the piston, the pin shaft can be pulled out and removed simply by unlocking the clamping structure from the outside, and then the piston connecting rod can be removed. The piston disassembly can be completed quickly without the aid of tools, improving the disassembly efficiency of the piston and providing convenience and assistance for users' work.

[0013] 2. This utility model, through the setting of a movable cavity and a spring, uses the movable cavity to allow the locking rod to slide and also to limit rotation, so as to ensure the stability of the piston shaft pin after installation. The spring is used to reset the locking rod. When the length of the piston shaft pin does not need to be adjusted, the locking rod will be in its original state under the action of the spring and will not be pulled out, thus providing more options for the user and providing convenience and assistance for the user's work.

[0014] 3. This utility model features a protective ring and a piston connecting rod. The protective ring is rotatably mounted on the piston shaft pin, and the piston connecting rod is sleeved on the protective ring. Thus, when the piston connecting rod swings during operation, the protective ring directly contacts the piston shaft pin, thereby protecting the piston connecting rod, reducing wear, extending its service life, and providing convenience for users.

[0015] 4. This utility model features a piston cover and an opening. The piston cover is used to cover and protect components such as the locking parts and protrusions, preventing them from colliding with other components during operation. This provides protection, extends the service life of the piston, ensures normal operation, and provides convenience for users. The piston connecting rod can swing within the opening, ensuring its normal operation.

[0016] 5. This utility model, through the setting of piston ring groove and piston ring, the piston ring is snapped into the piston ring groove. The piston ring can seal the piston and cylinder wall, prevent cylinder leakage, and also conduct heat from the top of the piston to the cylinder liner, ensuring the normal operation of the engine and providing convenience for users.

[0017] 6. This utility model, through the setting of the connecting rod sleeve, is used in conjunction with the piston connecting rod. When the piston connecting rod is connected to the crankshaft rod, the connecting rod sleeve can be removed first, the piston connecting rod aligned with the crankshaft rod, and then the connecting rod sleeve can be mated and installed onto the piston connecting rod, thereby installing the entire piston connecting rod onto the crankshaft rod, quickly completing the piston assembly work, and providing convenience and assistance for the user's disassembly and assembly work. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded three-dimensional structural diagram of the present invention; Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 4 This is a partial three-dimensional exploded view of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the piston shaft pin.

[0020] In the diagram: 1. Cylinder block, 2. Bracket, 3. Shaft, 4. Locking element, 5. Locking block, 6. Piston pin, 7. Snap rod, 8. Snap groove, 9. Protective ring, 10. Moving chamber, 11. Spring, 12. Piston cover, 13. Opening, 14. Protrusion, 15. Piston ring groove, 16. Piston ring, 17. Piston connecting rod, 18. Connecting rod sleeve. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0022] A quick-release piston includes a cylinder body 1. A protrusion 14 is integrally formed on the inner side of the cylinder body 1. A bracket 2 is fixedly installed on both sides of the protrusion 14. A rotating shaft 3 is fixedly installed on the outer side of the bracket 2. Two locking pieces 4 are rotatably mounted on the surface of the rotating shaft 3, and both locking pieces 4 are hinged to the rotating shaft 3. A locking block 5 is fixedly connected to the inner side of the locking piece 4. A piston shaft pin 6 is inserted into the inner side of the protrusion 14. Both ends of the piston shaft pin 6 are inserted with locking rods 7. One end of the surface of the locking rod 7 is provided with a groove 8 that matches the locking block 5.

[0023] This utility model adopts a structure design for clamping the pin shaft. When disassembling the piston, the pin shaft can be pulled out and removed simply by unlocking the clamping structure from the outside, and then the piston connecting rod can be removed. The piston can be disassembled quickly without the aid of tools, improving the disassembly efficiency and providing convenience and assistance for users' work.

[0024] The specific usage process is as follows: First, the bracket 2 is fixedly installed on the protrusion 14. The protrusion 14 and the cylinder body 1 are integrally formed and are a single unit. Then, the locking piece 4 is rotatably installed on the bracket 2. The locking piece 4 on the same bracket 2 adopts a "scissor closure" structure design. Therefore, when the user unlocks, they directly pinch and squeeze the tail end of the locking piece 4 in opposite directions. At this time, the two locking pieces 4 will rotate on the bracket 2 and open in opposite directions. At the same time, the locking block 5 on the inner side of the locking piece 4 will also move out of the slot 8 on the locking rod 7, thus unlocking the locking of the locking rod 7. Then, the locking rod 7 is pressed into the piston shaft pin 6, that is, into the moving cavity 10. This allows the locking lever 7 to disengage from the protrusion 14, enabling the piston pin 6 to be removed directly upwards. Alternatively, the piston pin 6 can be pulled out from the side of the protrusion 14, completing the disassembly of the piston pin 6. Once the piston pin 6 is disassembled and removed, the piston connecting rod 17 can be removed from the cylinder body 1, thus completing the disassembly of the connecting rod and cylinder body. It should be noted that the piston pin 6 employs an adjustable length design, meaning that the locking lever 7 can extend within the piston pin 6. Depending on the actual size of the cylinder body, during installation, after the piston pin 6 is inserted into the cylinder body 1, the locking lever 7 is pulled outwards to extend the piston pin 6. The length of the locking rod 7 ensures that the groove 8 on the locking rod 7 matches and engages with the locking piece 4 and the locking block 5, thus guaranteeing that the piston pin 6 can be matched and installed with the protrusion 14 on the cylinder body 1. The locking rod 7 is not a regular cylinder, and the shape of the inner cavity of the movable cavity 10 is not a regular circle either. Therefore, the locking rod 7 cannot rotate within the movable cavity 10, ensuring the installation stability of the piston pin 6 during piston operation. Simultaneously, the piston connecting rod 17 is rotatably mounted on the piston pin 6. This completes the disassembly and assembly of the connecting rod and the cylinder body. During installation, the tail ends of the two locking pieces 4 on one side are pinched and squeezed towards each other, causing the two locking pieces 4 to unfold. Insert the piston pin 6 from one side of the protrusion 14 until it is completely inside the protrusion 14. At this point, the locking rods 7 on the piston pin 6 will be located at both ends inside the protrusion 14, with a portion on the outside. During this process, the two locking pieces 4 on the other side should also be unfolded to ensure that the two locking rods 7 can be adjusted to the appropriate position. Finally, release all the locking pieces 4, and the two locking pieces 4 on the same side will close and clamp onto the locking rods 7. The locking block 5 on the inner side of the locking piece 4 will be locked in the slot 8, thereby fixing the locking rods 7 and the piston pin 6. It should be noted that the locking rods 7 cannot slide out of the movable cavity 10. (Refer to...) Figure 5 Finally, the piston pin 6 is installed. It should be noted that before inserting the piston pin 6, the end of the piston connecting rod 17 should be placed inside the protrusion 14. When inserting the piston pin 6, the piston pin 6 should pass through the inside of the piston connecting rod 17. Finally, the removed piston cover 12 can be installed. The piston assembly work can be completed quickly, providing convenience for users.

[0025] Both ends of the piston pin 6 are provided with movable cavities 10. One end of the locking rod 7 is slidably installed in the movable cavity 10. One end of the locking rod 7 is fixedly connected to a spring 11. The end of the spring 11 away from the locking rod 7 is fixedly connected to the inner wall of the piston pin 6.

[0026] Specifically, the movable cavity 10 and the spring 11 are designed so that the movable cavity 10 is used to allow the locking rod 7 to slide and also to limit rotation to ensure the stability of the piston pin 6 after installation. The spring 11 is used to reset the locking rod 7. When the length of the piston pin 6 does not need to be adjusted, the locking rod 7 will be in its original state under the action of the spring 11 and will not be pulled out, thus providing more options for the user and providing convenience and assistance for the user's work.

[0027] A protective ring 9 is fitted onto the surface of the piston pin 6, and a piston connecting rod 17 is fitted onto the surface of the protective ring 9.

[0028] Specifically, the protective ring 9 and piston connecting rod 17 are configured such that the protective ring 9 is rotatably mounted on the piston shaft pin 6, and the piston connecting rod 17 is sleeved on the protective ring 9. Thus, when the piston connecting rod 17 swings during operation, the protective ring 9 will directly contact the piston shaft pin 6, thereby protecting the piston connecting rod 17, reducing wear on the piston connecting rod 17, extending the service life of the piston connecting rod 17, and providing convenience for users' work.

[0029] A piston cover 12 is threadedly installed on the top of the cylinder 1, and the top of the piston cover 12 has an opening 13 that is adapted to the piston connecting rod 17.

[0030] Specifically, the piston cover 12 and the opening 13 are designed to cover and protect components such as the locking piece 4 and the protrusion 14, preventing them from colliding with other components during operation, thus providing protection, extending the service life of the piston, ensuring its normal operation, and providing convenience for users. The piston connecting rod 17 can swing within the opening 13, ensuring its normal operation.

[0031] The cylinder body 1 has multiple piston ring slots 15 on its surface, and piston rings 16 are engaged inside the piston ring slots 15.

[0032] Specifically, the piston ring 16 is designed with piston ring groove 15 and piston ring 16 in place. Piston ring 16 is snapped into piston ring groove 15. Piston ring 16 can seal the piston and cylinder wall to prevent cylinder leakage, and can also conduct heat from the top of the piston to the cylinder liner to ensure the normal operation of the engine and provide convenience for users.

[0033] A connecting rod sleeve 18 is detachably installed on the top of the piston connecting rod 17.

[0034] Specifically, the connecting rod sleeve 18 is designed to work in conjunction with the piston connecting rod 17. When the piston connecting rod 17 is connected to the crankshaft rod, the connecting rod sleeve 18 can be removed first, the piston connecting rod 17 aligned with the crankshaft rod, and then the connecting rod sleeve 18 can be mated and installed onto the piston connecting rod 17, thereby installing the entire piston connecting rod 17 onto the crankshaft rod. This allows for quick assembly of the piston, providing convenience and assistance for the user's disassembly and assembly work.

[0035] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-release piston, comprising a cylinder (1), characterized in that: The inner side of the cylinder (1) is integrally formed with a protrusion (14). Both sides of the protrusion (14) are fixedly mounted with brackets (2). The outer side of the brackets (2) is fixedly mounted with a rotating shaft (3). Two locking pieces (4) are rotatably mounted on the surface of the rotating shaft (3). Both locking pieces (4) are hinged on the rotating shaft (3). The inner side of the locking piece (4) is fixedly connected with a locking block (5). The inner side of the protrusion (14) is inserted with a piston pin (6). Both ends of the piston pin (6) are inserted with a locking rod (7). One end of the surface of the locking rod (7) is provided with a slot (8) that matches the locking block (5).

2. The quick-release piston according to claim 1, characterized in that: Both ends of the piston pin (6) are provided with movable cavities (10), and one end of the clasp (7) is slidably installed in the movable cavity (10).

3. A quick-release piston according to claim 2, characterized in that: One end of the lever (7) is fixedly connected to a spring (11), and the end of the spring (11) away from the lever (7) is fixedly connected to the inner wall of the piston pin (6).

4. A quick-release piston according to claim 3, characterized in that: A protective ring (9) is fitted onto the surface of the piston pin (6), and a piston connecting rod (17) is fitted onto the surface of the protective ring (9).

5. A quick-release piston according to claim 4, characterized in that: The top of the cylinder (1) is threaded with a piston cover (12), and the top of the piston cover (12) has an opening (13) that is compatible with the piston connecting rod (17).

6. A quick-release piston according to claim 5, characterized in that: The cylinder body (1) has multiple piston ring slots (15) on its surface, and piston rings (16) are engaged inside the piston ring slots (15).

7. A quick-release piston according to claim 6, characterized in that: The piston connecting rod (17) is detachably fitted with a connecting rod sleeve (18) at its top.

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