Articulated piston with lubrication function

Abstract

The utility model discloses a hinge type piston with lubrication function relates to hinge type piston technical field. Including: piston head, piston rod, the end of piston rod is arranged in piston head, connecting shaft, connecting shaft fixed mounting is on piston rod, and the end of connecting shaft and piston head is rotatoryly connected, lubricating device, lubricating device sets up in the end of piston head, press head, press head installs in the inside of piston rod, and press head is used for extruding the lubricating oil in the inside of lubricating device. The hinge type piston, utilize the mutual cooperation between piston head and lubricating device, through the reciprocating slide of pressurizing mechanism, cooperate the one -way control of two one -way mechanism, facilitate make the lubricating oil in the oil storage tank inner chamber from the one -way mechanism of bottom one -way discharge, realize the lubrication of the connecting place between piston head and connecting shaft, need not manual periodical daubing of lubricating grease, realized the initiative, dynamic lubrication supply.

Description

Technical Field

[0001] This utility model relates to the field of articulated piston technology, specifically to an articulated piston with lubrication function. Background Technology

[0002] The articulated piston, a key component in reciprocating mechanisms, typically consists of a piston head and a piston rod hinged together by a connecting shaft. Its core function relies on the high-frequency, fixed-axis rotation of the piston head and rod around the connecting shaft to transmit power. Currently, lubrication of the articulated parts of this type of piston mainly employs two methods: one is manual, periodic application of grease, and the other is passive penetration of the lubricating medium through pre-designed oil channels. However, in actual operating conditions, both of these lubrication methods have significant technical drawbacks:

[0003] On the one hand, the piston rod is hinged to the connecting shaft inside the piston, a space that is confined and complex, making the traditional manual application of grease extremely difficult and unable to ensure that the grease is evenly distributed across the hinge gap between the connecting shaft and the shaft hole. On the other hand, passive permeation lubrication lacks an intelligent control mechanism, meaning that grease will continue to permeate even when the piston is stationary. This not only results in unnecessary waste of lubricating medium but also causes premature grease loss due to excessive permeation during piston restart, making it difficult to form a continuous and stable oil film at the hinge. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hinged piston with lubrication function, comprising:

[0005] Piston head;

[0006] A piston rod, wherein the piston rod is disposed at the end of the piston head;

[0007] A connecting shaft is fixedly mounted on the piston rod, and the connecting shaft is rotatably connected to the end of the piston head;

[0008] A lubrication device is disposed at the end of the piston head;

[0009] A pressing head is installed inside the piston rod and is used to squeeze out the lubricating oil inside the lubrication device.

[0010] Preferably, the lubrication device includes:

[0011] An oil reservoir is provided at the end of the piston head;

[0012] A press-type pressurizing mechanism is installed at the top of the oil storage tank and is used to pressurize the inner cavity of the oil storage tank.

[0013] A one-way mechanism is provided at the bottom and on one side of the oil storage tank.

[0014] Preferably, the press-type pressurizing mechanism includes:

[0015] An insert rod, which is movably coupled to the piston head;

[0016] A connector, which is fixedly connected to one end of the insert rod;

[0017] A pressure plug, which is fixedly connected to the other end of the insertion rod;

[0018] The first spring is movably sleeved on the outside of the insert rod.

[0019] Preferably, a pressure groove is provided at the top of the inner cavity of the oil storage tank, the pressure plug cooperates with the inner cavity of the pressure groove, and a countersunk hole is provided on the piston head to cooperate with the connector.

[0020] Preferably, the unidirectional mechanism includes:

[0021] Second spring;

[0022] The sealing head, with the second spring providing elastic support for the sealing head.

[0023] Preferably, the bottom and one side of the inner cavity of the oil storage tank are provided with mounting grooves, the second spring and the sealing head are both installed in the inner cavity of the mounting groove, and the end of the inner cavity of the mounting groove is provided with a through hole.

[0024] Preferably, the piston head has an oil injection hole at its end, the oil injection hole communicates with the inner cavity of the oil reservoir, and a sealing plug fits inside the oil injection hole.

[0025] This utility model discloses an articulated piston with lubrication function, which has the following beneficial effects:

[0026] By utilizing the cooperation between the piston head and the lubrication device, the piston head rotates relative to the piston rod around the axis of the connecting shaft during its reciprocating motion. The piston head drives the rotation of the pressing mechanism, which in turn causes the pressing head to reciprocate and compress the pressing mechanism. Through the reciprocating sliding of the pressing mechanism, combined with the one-way control of two one-way mechanisms, it is easy to draw in outside air from the top one-way mechanism to pressurize the inner cavity of the oil reservoir. This allows the lubricating oil in the inner cavity of the oil reservoir to be discharged one-way from the bottom one-way mechanism, thus achieving lubrication at the connection between the piston head and the connecting shaft. This eliminates the need for manual periodic application of grease, solving the problems of difficulty in traditional manual application and ensuring uniform coverage of the hinge gap between the connecting shaft and the shaft hole. Furthermore, since the lubricating medium is discharged only in a directional manner when the piston is moving, it avoids the unnecessary waste of lubricating medium caused by the continuous permeation of the passive permeation method when the piston is stationary. At the same time, the lubricating medium is dynamically replenished according to the piston's movement, ensuring that the articulated parts can continuously receive lubrication during piston restart and operation, which is conducive to the formation of a stable oil film and realizes active and dynamic lubrication replenishment. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the piston head of this utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the lubrication device of this utility model;

[0031] Figure 4 This is a schematic diagram of the internal structure of the press-type pressure mechanism of this utility model;

[0032] Figure 5 This is a schematic diagram of the internal structure of the unidirectional mechanism of this utility model.

[0033] In the diagram: 1. Piston head; 2. Piston rod; 3. Connecting shaft; 4. Lubrication device; 41. Oil reservoir; 42. Press-type pressurizing mechanism; 421. Insertion rod; 422. Connector; 423. Pressurizing plug; 424. First spring; 43. One-way mechanism; 431. Second spring; 432. Sealing head; 44. Sealing plug; 401. Pressurizing groove; 402. Mounting groove; 403. Through hole; 5. Press head. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0035] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0036] This utility model provides, for example Figure 1-5 The illustrated articulated piston with lubrication function includes: a piston head 1; a piston rod 2, the piston rod 2 being disposed at the end of the piston head 1; a connecting shaft 3, the connecting shaft 3 being fixedly mounted on the piston rod 2, and the connecting shaft 3 being rotatably connected to the end of the piston head 1; a lubrication device 4, the lubrication device 4 being disposed at the end of the piston head 1; and a pressing head 5, the pressing head 5 being installed inside the piston rod 2, and the pressing head 5 being used to squeeze out the lubricating oil inside the lubrication device 4, thereby facilitating the compression of the lubrication device 4.

[0037] The lubrication device 4 includes: an oil reservoir 41 located at the end of the piston head 1; a press-type pressurizing mechanism 42 located at the top of the oil reservoir 41 for pressurizing the inner cavity of the oil reservoir 41; and a one-way mechanism 43 located at the bottom and one side of the oil reservoir 41. The combined arrangement of two one-way mechanisms 43 ensures that gas can only enter the oil reservoir from the outside through the top one-way mechanism 43 in one direction. The oil is discharged unidirectionally from the bottom one-way mechanism 43 inside the tank 41. The top one-way mechanism 43 allows external air to enter, balancing the air pressure inside the tank 41 when the inner cavity is under negative pressure. The one-way mechanism 43 also seals the oil in the inner cavity of the tank 41, preventing random oil seepage and backflow. An oil injection hole is provided at the end of the piston head 1, communicating with the inner cavity of the tank 41. The hole is fitted with a sealing plug 44. During the reciprocating motion of the piston head 1, the piston head 1 will rotate about the axis of the connecting shaft 3 relative to the piston rod 2. The piston head 1 drives the rotation of the pressing mechanism 42, which allows the pressing head 5 to reciprocate and squeeze the pressing mechanism 42. Through the reciprocating sliding of the pressing mechanism 42, combined with the one-way control of the two one-way mechanisms 43, it is easy to draw in outside air from the top one-way mechanism 43 and pressurize the inner cavity of the oil reservoir 41. This allows the lubricating oil in the inner cavity of the oil reservoir 41 to be discharged one-way from the bottom one-way mechanism 43, thereby achieving lubrication of the connection between the piston head 1 and the connecting shaft 3. There is no need for manual periodic application of grease, which solves the problems of difficulty in traditional manual application and difficulty in ensuring that the grease evenly covers the hinge gap between the connecting shaft 3 and the shaft hole. Moreover, since the lubricating medium is discharged only in a directional manner when the piston is moving, it avoids the needless waste of lubricating medium caused by the passive permeation method that continues to permeate when the piston is stationary. At the same time, the lubricating medium is dynamically replenished according to the piston's movement, ensuring that the articulated parts can continuously receive lubrication during piston restart and operation, which is conducive to the formation of a stable oil film and realizes active and dynamic lubrication replenishment.

[0038] Specifically, the press-type pressurizing mechanism 42 includes: an insert rod 421, which is movably connected to the piston head 1; a connector 422, which is fixedly connected to one end of the insert rod 421; a pressurizing plug 423, which is fixedly connected to the other end of the insert rod 421; and a first spring 424, which is movably sleeved on the outside of the insert rod 421. A pressurizing groove 401 is provided at the top of the inner cavity of the oil reservoir 41. The pressurizing plug 423 cooperates with the inner cavity of the pressurizing groove 401. A countersunk hole is provided on the piston head 1 to cooperate with the connector 422. The countersunk hole allows the connector 422 to move towards the piston head 1 when it is pressed. The insert rod 421 facilitates the connection between the relative positions of the connector 422 and the pressurizing plug 423. When the press head 5 presses the connector 422, it... The pressure plug 423 can be pushed by the insertion rod 421, so that the pressure plug 423 moves in the inner cavity of the pressure groove 401 toward the oil storage tank 41, so as to pressurize the inner cavity of the oil storage tank 41. The elastic support of the first spring 424 facilitates the return of the connector 422 to its initial state. At the same time, the upward movement of the pressure plug 423 facilitates the extraction of negative pressure from the inner cavity of the oil storage tank 41. The connector 422 is mushroom-shaped, which facilitates the bidirectional compression of it by the pressing head 5.

[0039] The one-way mechanism 43 includes a second spring 431 and a sealing head 432. The second spring 431 provides elastic support for the sealing head 432. The bottom and one side of the inner cavity of the oil reservoir 41 are provided with mounting grooves 402. The second spring 431 and the sealing head 432 are both installed in the inner cavity of the mounting groove 402. A through hole 403 is provided at the end of the inner cavity of the mounting groove 402, communicating with it. The second spring 431 facilitates the elastic support of the sealing head 432, allowing the sealing head 432 to unidirectionally seal the inner cavity of the mounting groove 402 under normal conditions. Only when the pressure is too high is the sealing head 432 pushed towards the second spring 431, at which point the sealing head 432 no longer seals the inner cavity of the mounting groove 402.

[0040] 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 hinged piston with lubrication function, characterized in that, include: Piston head (1); Piston rod (2), the piston rod (2) is disposed at the end of piston head (1); A connecting shaft (3) is fixedly installed on the piston rod (2), and the connecting shaft (3) is rotatably connected to the end of the piston head (1); A lubrication device (4) is provided at the end of the piston head (1); Press head (5), which is installed inside piston rod (2) and is used to squeeze out lubricating oil inside lubrication device (4).

2. The articulated piston with lubrication function according to claim 1, characterized in that, The lubrication device (4) includes: An oil reservoir (41) is provided at the end of the piston head (1); Press-type pressurizing mechanism (42), which is located on the top of the oil storage tank (41), is used to pressurize the inner cavity of the oil storage tank (41); One-way mechanism (43) is provided at the bottom and one side of the oil storage tank (41).

3. A hinged piston with lubrication function according to claim 2, characterized in that, The press-type pressure mechanism (42) includes: Insertion rod (421), which is movably engaged with piston head (1); Connector (422), which is fixedly connected to one end of the insertion rod (421); A pressure plug (423) is fixedly connected to the other end of the insertion rod (421); The first spring (424) is movably sleeved on the outside of the insert rod (421).

4. A hinged piston with lubrication function according to claim 3, characterized in that, The top of the inner cavity of the oil storage tank (41) is provided with a pressure groove (401), the pressure plug (423) cooperates with the inner cavity of the pressure groove (401), and the piston head (1) is provided with a countersunk hole that cooperates with the connector (422).

5. A hinged piston with lubrication function according to claim 2, characterized in that, The one-way mechanism (43) includes: Second spring (431); The plug head (432) is provided with a second spring (431) for elastic support.

6. A hinged piston with lubrication function according to claim 5, characterized in that, The bottom and one side of the inner cavity of the oil storage tank (41) are provided with mounting grooves (402), the second spring (431) and the sealing head (432) are both installed in the inner cavity of the mounting groove (402), and the end of the inner cavity of the mounting groove (402) is provided with a through hole (403).

7. A hinged piston with lubrication function according to claim 2, characterized in that, The piston head (1) has an oil injection hole at its end, which is connected to the inner cavity of the oil reservoir (41), and the oil injection hole is fitted with a sealing plug (44).

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