Piston structure with special inner pin seat shape

Abstract

The utility model discloses a piston structure with a special inner pin boss shape, which relates to the technical field of piston design and comprises a tank body, a piston piece is slidably connected in the tank body, a plurality of cavities are arranged in the piston piece, a plurality of flowing pipelines are arranged in the piston piece, and a plurality of rotating grooves are arranged on the side wall of the piston piece. The flowing pipelines, the rotating grooves and the cavities are in one-to-one correspondence in number, small round blocks are rotationally connected into the flowing pipelines, discs are rotationally connected into the rotating grooves, one ends of the flowing pipelines communicate with the cavities, the other ends of the flowing pipelines communicate with the rotating grooves, and the small round blocks are arranged at the ends, communicating with the rotating grooves, of the flowing pipelines. The disc is in contact with the small round block, a rotating shaft is fixedly connected to the interior of the disc, and the two ends of the rotating shaft are rotationally connected to the interior of the rotating groove, so that the technical problem that as the lubricating liquid in the device is reduced, the set distance of the balls is too high, the remaining lubricating liquid cannot make contact with the balls, and lubrication fails is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston design, in particular to a piston structure with a special inner pin seat shape. Background Art

[0002] The piston is a common mechanical part, usually used in internal combustion engines, compressors and hydraulic mechanisms. It is a cylindrical part, usually made of metal material, with a raised top and a bottom. The main function of the piston is to convert the pressure of the combustion gas into mechanical energy and drive the connecting rod and crankshaft to reciprocate. In an internal combustion engine, the piston reciprocates in the cylinder. Through the sealing structure of the cylinder and the piston, the combustion chamber is divided into a compression stroke and a working stroke, realizing the compression, combustion and discharge process of the gas in the cylinder.

[0003] After searching, the patent document (authorization announcement number is CN220319752U) includes a sleeve and a connecting rod, a mounting plate and a piston body, wherein the connecting rod is inserted at the top of the sleeve, the mounting plate is fixed to the bottom surface of the sleeve, the piston body is fixed to the bottom end of the connecting rod and is located in the sleeve, and an oil storage tank is provided in the piston body, wherein at least four fixedly connected springs are fixedly connected in the oil storage tank. By setting up the oil storage tank, when the piston body is driven to move in the sleeve, the piston body at this time can make the ball rotate when moving, and then when the ball is subjected to rolling force, it can drive the lubricating oil in the oil storage tank to be discharged from the gap between the ball and the piston body, thus achieving the effect of facilitating oil lubrication, and preventing the frictional heat that is easy to occur when the contact surface between the piston body and the sleeve is poorly lubricated, thereby affecting the overall strength of the sleeve and resulting in poor service life.

[0004] However, the above device still has shortcomings:

[0005] As the lubricating fluid in the device decreases, and the distance between the balls is set too high, the remaining lubricating fluid cannot contact the balls, resulting in lubrication failure. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a piston structure with a special inner pin seat shape, which solves the problem that as the lubricating liquid in the device decreases, the distance between the balls is too high, and the remaining lubricating liquid cannot contact the balls, resulting in lubrication failure.

[0007] To achieve the above-mentioned purpose, the utility model proposes a piston structure with a special inner pin seat shape, including a tank body, a piston plate slidably connected to the interior of the tank body, a plurality of cavities are opened inside the piston plate, a plurality of flow pipes are opened inside the piston plate, a plurality of rotating grooves are opened on the side wall of the piston plate, the number of the flow pipes, the rotating grooves and the cavities correspond to each other, a small round block is rotatably connected to the interior of the flow pipe, a disc is rotatably connected to the interior of the rotating groove, one end of the flow pipe is connected to the cavity, and the other end of the flow pipe is connected to the rotating groove, the small round block is arranged at the end where the flow pipe and the rotating groove are connected, the disc and the small round block are in contact, the interior of the disc is fixedly connected to a rotating shaft, and both ends of the rotating shaft are rotatably connected in the rotating groove.

[0008] Preferably, a plurality of sealing plugs are inserted into the top of the piston plate, the number of the sealing plugs corresponds to the cavity one by one, the bottom of the sealing plug extends into the cavity, a gasket is slidably connected to the inside of the cavity, a slot is provided inside the gasket, and a spring is arranged inside the cavity.

[0009] Preferably, one end of the sealing plug extending into the cavity is inserted into a slot.

[0010] Preferably, a piston rod is inserted into the top of the tank body, the bottom of the piston rod extends into the tank body, one end of the piston rod extending into the tank body is inserted into an inner pin seat, and the inner pin seat is fixedly connected to the top of the piston plate.

[0011] Preferably, the bottom of the tank body is fixedly connected with a base.

[0012] Preferably, a connecting shaft is fixedly connected to the top of the tank body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the setting of the flow pipe and the small round block, when the device is used, the lubricating fluid in the cavity will flow into the flow pipe, when the piston slides up and down, the inner wall of the tank will contact the disc, and the friction will drive the disc to rotate. Under the action of the friction force of the disc, the small round block will also rotate, and then under the gravity pressure of the lubricating fluid in the cavity, the lubricating fluid will adhere to the small round block, and then adhere to the disc through the rotation of the small round block, and finally these lubricating fluids will adhere to the inner wall of the tank.

[0015] The advantage of this design is that it can avoid the problem that the lubricating liquid cannot flow into the rotating groove when the liquid in the cavity becomes less, and avoid the lubricating liquid not being able to adhere to the inner wall of the tank in time, thereby causing the temperature inside the tank to rise and affecting the normal use of the device. Secondly, the setting of the flow pipeline can improve the efficiency of the use of the lubricating liquid, avoid a large amount of lubricating liquid remaining in the cavity, and reduce the waste of resources.

[0016] 2. Through the setting of the gasket and the spring, when the device is in use, the gasket will move downward under the action of the spring tension. At this time, the gasket will squeeze the lubricant and squeeze it into the flow pipe. This can avoid relying on the lubricant's own gravity for lubrication only when it is placed upright. In any case, such as when the device is placed upside down or tilted, the lubricant can be discharged, which improves the stability of the device and increases the scope of application of the device, making it suitable for more scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the piston plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the gasket structure of the utility model.

[0021] In the figure: 1, tank body; 2, base; 3, piston rod; 31, inner pin seat; 4, connecting shaft; 5, piston plate; 6, cavity; 7, sealing plug; 8, spring; 9, gasket; 91, slot; 10, rotating groove; 11, flow channel; 12, small round block; 13, disc; 14, rotating shaft. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, the piston structure with a special inner pin seat shape includes a tank body 1, a base 2 is fixedly connected to the bottom of the tank body 1, and a connecting shaft 4 is fixedly connected to the top of the tank body 1.

[0024] The tank body 1 is slidably connected with a piston plate 5, and a plurality of cavities 6 are provided inside the piston plate 5. A plurality of flow pipes 11 are provided inside the piston plate 5. When the device is used, the lubricating fluid in the cavity 6 will flow into the flow pipe 11. The side wall of the piston plate 5 is provided with a plurality of rotating grooves 10. The number of the flow pipes 11, the rotating grooves 10 and the cavity 6 corresponds to each other. A small round block 12 is rotatably connected inside the flow pipe 11, and a disc 13 is rotatably connected inside the rotating groove 10. One end of the flow pipe 11 is connected to the cavity 6, and the other end of the flow pipe 11 is connected to the rotating groove 10. The small round block 12 is arranged at At one end of the flow pipe 11 connected to the rotating groove 10, the disc 13 and the small round block 12 are in contact. When the piston plate 5 slides up and down, the inner wall of the tank body 1 will contact the disc 13, and the friction force will drive the disc 13 to rotate. Under the action of the friction force of the disc 13, the small round block 12 will also rotate. Then, under the gravity pressure of the lubricating fluid in the cavity 6, the lubricating fluid will adhere to the small round block 12, and then adhere to the disc 13 through the rotation of the small round block 12. Finally, these lubricating fluids will adhere to the inner wall of the tank body 1. The inside of the disc 13 is fixedly connected with a rotating shaft 14, and both ends of the rotating shaft 14 are rotatably connected in the rotating groove 10.

[0025] This can avoid the problem that the lubricating liquid cannot flow into the rotating groove 10 when the liquid in the cavity 6 becomes less, and can avoid the lubricating liquid not being able to adhere to the inner wall of the tank body 1 in time, thereby causing the temperature in the tank body 1 to rise and affecting the normal use of the device. Secondly, the setting of the flow pipe 11 can improve the efficiency of the use of the lubricating liquid, avoid a large amount of lubricating liquid remaining in the cavity 6, and reduce the waste of resources.

[0026] A plurality of sealing plugs 7 are inserted into the top of the piston plate 5, and the number of the sealing plugs 7 corresponds to the cavity 6 one by one. The bottom of the sealing plug 7 extends into the cavity 6, and a gasket 9 is slidably connected to the inside of the cavity 6. A slot 91 is provided inside the gasket 9, and a spring 8 is provided inside the cavity 6. When the device is in use, the gasket 9 will move downward under the action of the tension of the spring 8. At this time, the gasket 9 will squeeze the lubricating liquid and squeeze it into the flow pipe 11. This can avoid relying on the lubricating liquid's own gravity for lubrication only when it is placed upright. In any case, such as when the device is inverted or tilted, the lubricating liquid can be discharged, which improves the stability of the device, increases the scope of application of the device, and makes it suitable for more scenarios.

[0027] One end of the sealing plug 7 extending into the cavity 6 is inserted into the slot 91 .

[0028] A piston rod 3 is inserted into the top of the tank body 1 , and the bottom of the piston rod 3 extends into the tank body 1 . An inner pin seat 31 is inserted into one end of the piston rod 3 extending into the tank body 1 , and the inner pin seat 31 is fixedly connected to the top of the piston plate 5 .

[0029] Working principle: When the device is used, the piston rod 3 is driven by the outside world to control the piston plate 5 to perform up and down reciprocating motion in the tank body 1.

[0030] At this time, the lubricating fluid in the cavity 6 will flow into the flow pipe 11. When the piston plate 5 slides up and down, the inner wall of the tank body 1 will contact the disc 13. The friction force will drive the disc 13 to rotate. Under the action of the friction force of the disc 13, the small round block 12 will also rotate. Then, under the gravity pressure of the lubricating fluid in the cavity 6, the lubricating fluid will adhere to the small round block 12, and then adhere to the disc 13 through the rotation of the small round block 12. Finally, the lubricating fluid will adhere to the inner wall of the tank body 1.

[0031] When the device is in use, the gasket 9 will move downward under the action of the tension of the spring 8. At this time, the gasket 9 will squeeze the lubricating liquid and squeeze it into the flow pipe 11. This can avoid relying on the lubricating liquid's own gravity for lubrication only when the device is placed upright. In any case, such as when the device is placed upside down or tilted, the lubricating liquid can be discharged.

[0032] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. The piston structure with special inner pin seat shape is characterized by: The invention comprises a tank body (1), wherein a piston plate (5) is slidably connected to the inside of the tank body (1), a plurality of cavities (6) are provided inside the piston plate (5), a plurality of flow pipes (11) are provided inside the piston plate (5), a plurality of rotating grooves (10) are provided on the side wall of the piston plate (5), the number of the flow pipes (11), the rotating grooves (10) and the cavities (6) are in one-to-one correspondence, a small round block (12) is rotatably connected to the inside of the flow pipe (11), and the rotating groove (10) is provided on the side wall of the piston plate (5). 0) is rotatably connected to a disc (13) inside, one end of the flow pipe (11) is connected to the cavity (6), the other end of the flow pipe (11) is connected to the rotation groove (10), the small round block (12) is arranged at the end where the flow pipe (11) and the rotation groove (10) are connected, the disc (13) and the small round block (12) are in contact, the inside of the disc (13) is fixedly connected to a rotating shaft (14), and both ends of the rotating shaft (14) are rotatably connected to the rotation groove (10).

2. The piston structure with a special inner pin seat shape according to claim 1 is characterized in that: A plurality of sealing plugs (7) are inserted into the top of the piston plate (5), the number of the sealing plugs (7) corresponding to the number of the cavities (6), the bottom of the sealing plug (7) extends into the cavity (6), a gasket (9) is slidably connected to the inside of the cavity (6), a slot (91) is provided inside the gasket (9), and a spring (8) is provided inside the cavity (6).

3. The piston structure with a special inner pin seat shape according to claim 2 is characterized in that: One end of the sealing plug (7) extending into the cavity (6) is inserted into the slot (91).

4. The piston structure with a special inner pin seat shape according to claim 2, characterized in that: A piston rod (3) is inserted into the top of the tank body (1), and the bottom of the piston rod (3) extends into the tank body (1). An inner pin seat (31) is inserted into one end of the piston rod (3) extending into the tank body (1), and the inner pin seat (31) is fixedly connected to the top of the piston plate (5).

5. The piston structure with a special inner pin seat shape according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly connected to a base (2).

6. The piston structure with a special inner pin seat shape according to claim 1, characterized in that: A connecting shaft (4) is fixedly connected to the top of the tank body (1).

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