Hydraulic cylinder seal structure with self-lubricating function

Abstract

The utility model provides a kind of hydraulic cylinder sealing structure with self-lubricating function, it is related to hydraulic cylinder sealing structure technical field, including first cylinder, further include sealing piece is placed in the outside of the first cylinder, for the sealing of first cylinder outside is implemented automatic lubrication simultaneously, sealing cover is equipped in the outside of the first cylinder, second cylinder is set to the outside of the one end of the first cylinder, sealing cover is sealed to the sealing design of the junction of second cylinder and first cylinder, complementary to self-lubricating function, both avoid the leakage waste of lubricating oil, can also block external dust, impurity etc. Into internal structure, guarantee the cleanliness of hydraulic cylinder operating environment, improve overall sealing performance and working stability.In addition, each component is realized function cooperation by ingenious mechanical linkage.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder sealing structure technology, and in particular to a hydraulic cylinder sealing structure with self-lubricating function. Background Technology

[0002] The hydraulic cylinder sealing structure refers to a special device or component installed in key parts of the hydraulic cylinder such as the piston, piston rod, and end cap. Its core function is to prevent hydraulic oil from leaking under high pressure inside the cylinder, while also preventing external dust, moisture, impurities, etc. from entering the cylinder.

[0003] Traditional devices are difficult to automate. First, they require manual lubrication at regular intervals, which not only increases labor costs and maintenance workload, but may also lead to untimely lubrication due to human negligence or untimely operation, thereby aggravating friction and wear between components and shortening the service life of the device. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic cylinder sealing structure with self-lubricating function, which solves the problem that traditional devices are difficult to auto-lubricate. First, manual lubrication is required periodically, which not only increases labor costs and maintenance workload, but also may lead to untimely lubrication due to human negligence or untimely operation, thereby aggravating friction and wear between components and shortening the service life of the device. Second, manual lubrication makes it difficult to ensure precise control of the lubricant dosage, which can easily lead to over-lubrication and waste, or insufficient lubrication and failure to achieve effective lubrication, affecting the normal operation accuracy and stability of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic cylinder sealing structure with self-lubricating function, including a first cylinder, and further including: a sealing element disposed on the outside of the first cylinder, used to seal the outside of the first cylinder while achieving automatic lubrication; a sealing cover sleeved on the outside of the first cylinder; and a second cylinder disposed on the outside of one end of the first cylinder.

[0006] Preferably, a mounting base is fixedly installed on the outer side of the bottom end of the second cylinder, a slider is slidably installed on the inner side of the end of the mounting base, a connecting plate is movably installed on the inner side of the top end of the mounting base, the connecting plate moves vertically on the inner side of the top end of the mounting base, a nozzle is installed on the outer side of the top end of the slider, and a connecting ring is fixedly installed on the outer side of the first cylinder.

[0007] Preferably, a spring is fixedly provided on the outer side of the bottom end of the first cylinder, and the outer side of the bottom end of the spring is fixedly connected to the inner side of the bottom end of the mounting base.

[0008] Preferably, the connecting plate has a trapezoidal protrusion on the outer side of its end, and the slider has a trapezoidal through groove on the inner side of one end.

[0009] Preferably, a squeezing plate is fixedly provided on the outer side of the end of the mounting base, a storage bladder is detachably connected to the inner side of the slider, one side of the storage bladder is connected to the outer side of one end of the nozzle, and the squeezing plate extends to the inner side of the slider to squeeze one end of the storage bladder.

[0010] Preferably, a scraper ring is fixedly provided on the outer side of the bottom end of the sealing cover. The scraper ring is made of rubber and is in contact with the outer side of the first cylinder.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. This utility model automates the lubrication process through a linked mechanical structure. The lubricating oil is extruded synchronously during normal downward pressure, eliminating the need for additional lubrication steps, simplifying the process and improving ease of operation. Furthermore, the lubricating fluid flows along a specific path to the outside of the first cylinder, ensuring accurate and effective lubrication of key components, maintaining good lubrication, reducing friction loss, and extending the service life of the hydraulic cylinder.

[0013] 2. In this utility model, the sealing design of the sealing cover at the connection between the second cylinder and the first cylinder complements the self-lubricating function, which not only avoids the leakage and waste of lubricating oil, but also prevents external dust, impurities and other contaminants from entering the internal structure, ensuring the cleanliness of the hydraulic cylinder's operating environment, improving the overall sealing performance and working stability, and making it highly applicable.

[0014] 3. In use, when the first cylinder moves, the scraper ring simultaneously cleans its outer side, which can promptly remove attached dust, impurities and other contaminants, preventing these foreign objects from entering the sealing or lubrication area and affecting the performance of the device, and reducing wear or sealing failure caused by impurities; at the same time, the scraper ring evenly coats the lubricating oil on the outer side of the first cylinder, which can ensure that the lubricating oil forms a uniform and complete oil film on the surface, avoiding waste caused by local lubricating oil accumulation. Attached Figure Description

[0015] Figure 1 A front view schematic diagram of a hydraulic cylinder sealing structure with self-lubricating function provided by this utility model;

[0016] Figure 2 A schematic diagram of the mounting base and slider in a hydraulic cylinder sealing structure with self-lubricating function provided by this utility model;

[0017] Figure 3A schematic diagram of the slider and connecting plate in a self-lubricating hydraulic cylinder sealing structure provided by this utility model;

[0018] Figure 4 This is a schematic diagram of the storage bladder and nozzle in a hydraulic cylinder sealing structure with self-lubricating function provided by this utility model.

[0019] Legend:

[0020] 1. First cylinder; 101. Second cylinder; 2. Sealing cover; 201. Mounting base; 202. Slider; 203. Connecting plate; 204. Spring; 205. Storage bladder; 206. Nozzle; 207. Extrusion plate; 208. Connecting ring; 209. Scraper ring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a hydraulic cylinder sealing structure with self-lubricating function, comprising: a mounting base 201 fixedly disposed on the outer side of the bottom end of a second cylinder 101, a slider 202 slidably disposed on the inner side of the end of the mounting base 201, a connecting plate 203 movably disposed on the inner side of the top end of the mounting base 201, the connecting plate 203 moving vertically on the inner side of the top end of the mounting base 201, a nozzle 206 disposed on the outer side of the top end of the slider 202, and a connecting ring 208 fixedly disposed on the outer side of the first cylinder 1. A spring 204 is fixedly installed on the outer side of the bottom end of the first cylinder 1. The outer side of the bottom end of the spring 204 is fixedly connected to the inner side of the bottom end of the mounting base 201. A trapezoidal protrusion is provided on the outer side of the end of the connecting plate 203. A trapezoidal through groove is opened on the inner side of one end of the slider 202. A compression plate 207 is fixedly installed on the outer side of the end of the mounting base 201. A storage bladder 205 is detachably connected to the inner side of the slider 202. One side of the storage bladder 205 is connected to the outer side of one end of the nozzle 206. The compression plate 207 extends to the inner side of the slider 202 to compress one end of the storage bladder 205.

[0023] In the specific implementation process: When using the device, the user can inject lubricating liquid into the inside of the storage bladder 205. At the same time, when the user presses down the first cylinder 1, it will drive the connecting ring 208 to descend vertically. The connecting ring 208 descends vertically until it contacts the upper surface of the connecting plate 203, thereby driving the connecting plate 203 to descend vertically. At the same time, the spring 204 is compressed, and the four sliders 202 are pulled towards the center by the protrusion on the outer side of the end of the connecting plate 203. The extrusion plate 207 is fixedly connected to the mounting base 201, thereby causing the extrusion plate 207 to move relative to the sliders 202, extruding the storage bladder 205 inside the sliders 202. The lubricating oil inside the storage bladder 205 flows to the outside of the first cylinder 1 through the nozzle 206, which can lubricate it. At the same time, the sealing cover 2 is sleeved on the outside of the second cylinder 101 and the first cylinder 1 to seal their connection.

[0024] like Figure 1 - Figure 4 As shown, a scraper ring 209 is fixedly connected to the outer side of the bottom end of the sealing cover 2; the scraper ring 209 is made of rubber and is in contact with the outer side of the first cylinder 1.

[0025] In the specific implementation process: when the first cylinder 1 is in motion, the scraper ring 209 will clean the outside of the first cylinder 1 and at the same time spread the lubricating oil on the outside of the first cylinder 1 evenly, which further increases the sealing performance and practicality of the device.

[0026] Working principle:

[0027] The automated lubrication process is achieved through a linked mechanical structure, allowing the user to simultaneously extrude lubricating oil during normal pressing operations, eliminating the need for additional lubrication steps and greatly simplifying the usage process and improving operational convenience. Secondly, the lubricating fluid flows precisely to the outside of the first cylinder 1 via a specific path, ensuring accurate and effective lubrication of key components, reducing frictional loss, and extending the service life of the hydraulic cylinder. Furthermore, the sealing design of the sealing cover 2 at the connection between the second cylinder 101 and the first cylinder 1 complements the self-lubricating function, preventing lubricating oil leakage and waste, and blocking external dust and impurities from entering the internal structure, ensuring a clean operating environment for the hydraulic cylinder and improving overall sealing performance and operational stability. In addition, the components achieve functional synergy through ingenious mechanical linkage, with a compact and logically clear structural design. Self-lubrication and sealing can be achieved without complex electrical control devices, reducing the failure rate and maintenance costs, and enhancing applicability.

[0028] When the first cylinder 1 moves, the scraper ring 209 simultaneously cleans its outer side, which can promptly remove attached dust, impurities and other contaminants, preventing these foreign objects from entering the sealing or lubrication area and affecting the performance of the device. This reduces wear or sealing failure caused by impurities from the source. At the same time, the scraper ring 209 evenly coats the lubricating oil on the outer side of the first cylinder 1, which can ensure that the lubricating oil forms a uniform and complete oil film on the surface. This not only avoids waste caused by local lubricating oil accumulation, but also makes the lubrication effect more durable and stable, further reducing the frictional resistance when the first cylinder 1 moves and improving the smoothness of operation.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A hydraulic cylinder sealing structure with self-lubricating function, comprising a first cylinder (1), characterized in that: Also includes: A sealing element is disposed on the outside of the first cylinder (1) to seal the outside of the first cylinder (1) while achieving automatic lubrication; a sealing cover (2) is sleeved on the outside of the first cylinder (1); and a second cylinder (101) is disposed on the outside of one end of the first cylinder (1).

2. The hydraulic cylinder sealing structure with self-lubricating function according to claim 1, characterized in that: The sealing element includes: A mounting base (201) is fixedly installed on the outer side of the bottom end of the second cylinder (101). A slider (202) is slidably installed on the inner side of the end of the mounting base (201). A connecting plate (203) is movably installed on the inner side of the top end of the mounting base (201). The connecting plate (203) moves vertically on the inner side of the top end of the mounting base (201). A nozzle (206) is installed on the outer side of the top end of the slider (202). A connecting ring (208) is fixedly installed on the outer side of the first cylinder (1).

3. A hydraulic cylinder sealing structure with self-lubricating function according to claim 2, characterized in that: A spring (204) is fixedly installed on the outer side of the bottom end of the first cylinder (1), and the outer side of the bottom end of the spring (204) is fixedly connected to the inner side of the bottom end of the mounting base (201).

4. A hydraulic cylinder sealing structure with self-lubricating function according to claim 2, characterized in that: The connecting plate (203) has a trapezoidal protrusion on the outer side of its end, and the slider (202) has a trapezoidal through groove on the inner side of one end.

5. A hydraulic cylinder sealing structure with self-lubricating function according to claim 2, characterized in that: An extrusion plate (207) is fixedly provided on the outer side of the end of the mounting base (201). A storage bladder (205) is detachably connected to the inner side of the slider (202). One side of the storage bladder (205) is connected to the outer side of one end of the nozzle (206). The extrusion plate (207) extends to the inner side of the slider (202) to extrude one end of the storage bladder (205).

6. A hydraulic cylinder sealing structure with self-lubricating function according to claim 2, characterized in that: A scraper ring (209) is fixedly provided on the outer side of the bottom end of the sealing cover (2).

7. A hydraulic cylinder sealing structure with self-lubricating function according to claim 6, characterized in that: The scraper ring (209) is made of rubber and is in contact with the outer side of the first cylinder (1).

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