Lubricating oil groove sealing assembly with self-cleaning function
By designing a self-cleaning lubricating oil groove sealing assembly, and utilizing the cooperation of sealing blocks, corrugated diaphragms, and scrapers, automatic lubrication and oil sludge removal are achieved on the inner wall of the hydraulic cylinder. This solves the problem of oil sludge on the inner wall of the hydraulic cylinder, extends its service life, and keeps it clean.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, the inner wall of hydraulic cylinders accumulates oil deposits over long-term use, affecting their reliability and service life.
A self-cleaning lubricating oil tank sealing assembly was designed, comprising a cleaning mechanism and a collection mechanism. Through the cooperation of a sealing block, a corrugated diaphragm, a push rod, and a scraper, automatic lubrication and oil residue removal of the inner wall of the hydraulic cylinder are achieved. Self-cleaning is performed by utilizing pressure difference and the movement of the scraper, combined with a vacuum cleaner to remove impurities.
It effectively avoids the impact of oil stains on hydraulic cylinders, extends their service life, and keeps the inner wall of the cylinder clean through an automated cleaning mechanism.
Smart Images

Figure CN224017478U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sealed assembly cleaning technical field, concretely is a kind of lubricating oil tank sealed assembly with self-cleaning function. BACKGROUND
[0002] Hydraulic system has wide application in contemporary industrial equipment, since hydraulic system is often applied in the arm of force in mechanical equipment, through the extension of hydraulic system to drive specified structure to move in specified direction
[0003] According to the sealing assembly with lubricating oil tank disclosed by Chinese patent publication No. CN 222208467 U, the device includes a hydraulic oil cylinder and a piston rod connected by a sleeve, the tail of the piston rod is fixedly connected with a sealing assembly, the sealing assembly seals the connection between the hydraulic oil cylinder and the piston rod, the sealing assembly is a sealing mechanism, and the sealing mechanism includes a sealing rod with a diameter equal to the inner diameter of the hydraulic oil cylinder. The sealing assembly with lubricating oil tank, by pouring lubricating oil into the inside of the oil storage cavity, the lubricating oil inside the oil storage cavity will seep out to the inside of the oil discharge groove through the oil discharge hole and be sealed and limited by the inner wall of the hydraulic oil cylinder. When the piston rod is extended and retracted, the lubricating oil between the oil discharge grooves will be applied to the inner wall of the hydraulic oil cylinder by the movement of the sealing rod, thereby achieving the effect of lubrication to avoid high temperature and damage due to friction, and protecting the hydraulic oil cylinder and the piston rod.
[0004] However, the above-mentioned prior art in use, by lubricating oil to fill the inner wall of the hydraulic oil cylinder, due to the long-term use of the hydraulic oil cylinder, oil stains are easily produced on the inner wall, thereby affecting the reliability and service life of the hydraulic oil cylinder. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a lubricating oil tank sealing assembly with self-cleaning function to solve the problem of the prior art in use, by lubricating oil to fill the inner wall of the hydraulic oil cylinder, due to the long-term use of the hydraulic oil cylinder, oil stains are easily produced on the inner wall, thereby affecting the reliability and service life of the hydraulic oil cylinder.
[0006] To solve the above technical problems, the utility model provides the following technical scheme: a lubricating oil tank sealing assembly with self-cleaning function, comprising a hydraulic oil cylinder, the inner side of the hydraulic oil cylinder is provided with a cleaning mechanism, one end of the cleaning mechanism is provided with a collecting mechanism;
[0007] The cleaning mechanism includes a sealing block, a sealing component is provided on the inner side of the sealing block, a placement cavity is opened on the left side of the sealing block, a plurality of corrugated diaphragms are fixedly connected to the inner side of the placement cavity, a top rod is fixedly connected to the center of the plurality of corrugated diaphragms, a vent pipe is fixedly connected to the inner side of the placement cavity, and a sloping groove is opened at one end of the sealing block, and a scraper is slidably connected to the inner side of the sloping groove.
[0008] Preferably, the sealing assembly includes an oil reservoir and a sealing rod, the oil reservoir has a leakage hole on its exterior, and a sealing gasket is fixedly connected to one end of the sealing rod.
[0009] Preferably, the oil storage tank is located inside the sealing block, and the sealing rod passes through the oil storage tank and extends into the interior of the oil storage tank.
[0010] Preferably, one end of the sealing block is threadedly connected to a piston rod, and the scraper is configured as a cone shape.
[0011] Preferably, the collection mechanism includes a collection tank and a discharge pipe, and a solenoid valve is installed on the outside of the discharge pipe.
[0012] Preferably, the collection groove is cone-shaped and is located at one end of the sealing block.
[0013] Preferably, the discharge pipe passes through the hydraulic cylinder and extends to the outside of the hydraulic cylinder, and a connector is provided at one end of the discharge pipe.
[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0015] Firstly, this utility model introduces a method for installing a sealing block. Lubricating oil is introduced into the oil reservoir of the sealing block through its opening, and then threadedly connected to the piston rod of the hydraulic cylinder. The sealing block is designed in an I-shape. When the piston rod extends and retracts, the sealing rod is pressurized by the hydraulic oil, causing the sealing gasket to descend. This allows the lubricating oil to drain from the oil reservoir's drain hole and contact the inner wall of the hydraulic cylinder. As the piston rod extends and retracts, the sealing block also moves up and down, lubricating the inner wall of the hydraulic cylinder. When oil deposits accumulate on the inner wall of the hydraulic cylinder, the vent pipe increases the pressure difference between the inside and outside of the cavity due to increased oil resistance. This causes the corrugated diaphragm to deform in the middle, pushing the top rod. The rising rod then pushes the scraper upwards, causing the scraper to extend from the inclined groove and contact the inner wall of the hydraulic cylinder. This allows the sealing block to scrape away the oil deposits on the inner wall during its movement, achieving a self-cleaning operation and preventing oil deposits from affecting the service life of the hydraulic cylinder.
[0016] Second, the utility model discloses through the scraper, and the oil dirt is scraped off, and the oil dirt falls to the collecting groove, when the sealing block drops to the bottom reset, the exhaust pipe is docked with the through -hole of the collecting groove outside, then through the connecting head of exhaust pipe and the dust catcher of outside connection, then opens the electromagnetic valve, makes the exhaust pipe through, and through the dust catcher, the impurity in the collecting groove is sucked, thereby completes the operation of cleaning the impurity, avoids the impurity accumulation in the collecting groove. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the perspective view of the cleaning mechanism of the utility model;
[0018] Figure 2 It is the perspective view of the placing cavity of the utility model;
[0019] Figure 3 It is the sectional view of the utility model;
[0020] Figure 4 It is the enlarged view of A of the utility model.
[0021] Among them: 1, hydraulic oil cylinder, 2, cleaning mechanism, 3, collection mechanism, 21, sealing block, 22, sealing assembly, 23, placing cavity, 24, corrugated diaphragm, 25, ejector rod, 26, breather pipe, 27, scraper, 201, oil storage tank, 203, sealing rod, 204, sealing pad, 31, collecting groove, 32, exhaust pipe, 33, electromagnetic valve. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] The utility model provides the following technical scheme:
[0024] Embodiment one
[0025] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 A kind of lubricating oil groove sealing assembly with self-cleaning function, including hydraulic oil cylinder 1, the inner side of hydraulic oil cylinder 1 is provided with cleaning mechanism 2, one end of cleaning mechanism 2 is provided with collection mechanism 3;
[0026] The cleaning mechanism 2 comprises a sealing block 21, the inner side of the sealing block 21 is provided with a sealing assembly 22, the left side of the sealing block 21 is provided with a placing cavity 23, the inner side of the placing cavity 23 is fixedly connected with a plurality of corrugated diaphragms 24, the center of the corrugated diaphragms 24 is fixedly connected with a top rod 25, the inner side of the placing cavity 23 is fixedly communicated with a breather pipe 26, one end of the sealing block 21 is provided with an inclined groove, and the inner side of the inclined groove is slidably connected with a scraper 27.
[0027] The sealing assembly 22 comprises an oil storage groove 201 and a sealing rod 203, the outer side of the oil storage groove 201 is provided with a leakage hole, and one end of the sealing rod 203 is fixedly connected with a sealing gasket 204.
[0028] The oil storage groove 201 is arranged on the inner side of the sealing block 21, and the sealing rod 203 penetrates through the oil storage groove 201 and extends to the inside of the oil storage groove 201.
[0029] One end of the sealing block 21 is threadedly connected with a piston rod, and the scraper 27 is conical.
[0030] Through the above technical scheme, the lubricating oil is input into the oil storage groove 201 of the sealing block 21 through the opening of the sealing block 21, and then is threadedly connected with the piston rod of the hydraulic oil cylinder 1 to complete the installation of the sealing block 21, the sealing block 21 is arranged in an I-shaped manner, when the piston rod extends and retracts, the sealing rod 203 is subjected to the pressure of the hydraulic oil, the sealing rod 203 drives the sealing gasket 204 to descend, so that the lubricating oil is discharged from the leakage hole of the oil storage groove 201 and contacts the inner wall of the hydraulic oil cylinder 1, when the piston rod extends and retracts, the sealing block 21 also rises and falls to lubricate the inner wall of the hydraulic oil cylinder 1, when the inner wall of the hydraulic oil cylinder 1 produces oil dirt, since the breather pipe 26 is arranged, when the oil dirt accumulates to increase the oil discharge resistance, the pressure difference between the inside and outside of the placing cavity 23 increases, so that the middle part of the corrugated diaphragm 24 deforms to push the top rod 25 at the top, the top rod 25 rises to push the scraper 27 to rise, so that the scraper 27 extends from the inclined groove to contact the inner wall of the hydraulic oil cylinder 1, so that the oil dirt on the inner wall is scraped off when the sealing block 21 rises and falls, the self-cleaning operation is completed, and the effect of avoiding the influence of the oil dirt on the service life of the hydraulic oil cylinder 1 is achieved.
[0031] Example two
[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , and on the basis of example one, it is further obtained that the collecting mechanism 3 comprises a collecting groove 31 and a discharge pipe 32, and the outer side of the discharge pipe 32 is provided with an electromagnetic valve 33.
[0033] The collecting groove 31 is arranged in a conical shape, and the collecting groove 31 is arranged at one end of the sealing block 21.
[0034] The discharge pipe 32 penetrates the hydraulic oil cylinder 1 and extends to the outside of the hydraulic oil cylinder 1, and one end of the discharge pipe 32 is provided with a connecting head.
[0035] Through the above technical scheme, after the oil dirt is scraped off by the scraper 27, the oil dirt falls into the collecting groove 31, when the sealing block 21 is lowered to the bottom end and is reset, the discharge pipe 32 is butted with the penetrating hole outside the collecting groove 31, then the connecting head of the discharge pipe 32 is connected with the dust collector outside, then the electromagnetic valve 33 is opened, so that the discharge pipe 32 penetrates, and the impurities in the collecting groove 31 are sucked away by the dust collector, so that the operation of cleaning the impurities is completed, and the impurities are prevented from accumulating in the collecting groove 31.
[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits, and the scope of the changes, modifications, replacements and variations is defined by the appended claims and their equivalents.
Claims
1. A lubricating oil groove sealing assembly with self-cleaning function, comprising a hydraulic cylinder (1), characterized in that: A cleaning mechanism (2) is provided on the inner side of the hydraulic cylinder (1), and a collection mechanism (3) is provided at one end of the cleaning mechanism (2); The cleaning mechanism (2) includes a sealing block (21), a sealing component (22) is provided on the inner side of the sealing block (21), a placement cavity (23) is provided on the left side of the sealing block (21), a plurality of corrugated diaphragms (24) are fixedly connected to the inner side of the placement cavity (23), a top rod (25) is fixedly connected to the center of the plurality of corrugated diaphragms (24), a vent pipe (26) is fixedly connected to the inner side of the placement cavity (23), and a sloping groove is provided at one end of the sealing block (21), and a scraper (27) is slidably connected to the inner side of the sloping groove.
2. The lubricating oil groove sealing assembly with self-cleaning function according to claim 1, characterized in that: The sealing assembly (22) includes an oil reservoir (201) and a sealing rod (203). The oil reservoir (201) has a leakage hole on its outside, and a sealing gasket (204) is fixedly connected to one end of the sealing rod (203).
3. A lubricating oil groove sealing assembly with self-cleaning function according to claim 2, characterized in that: The oil storage tank (201) is located inside the sealing block (21), and the sealing rod (203) passes through the oil storage tank (201) and extends into the interior of the oil storage tank (201).
4. A lubricating oil groove sealing assembly with self-cleaning function according to claim 1, characterized in that: One end of the sealing block (21) is threaded with a piston rod, and the scraper (27) is set in a conical shape.
5. A lubricating oil groove sealing assembly with self-cleaning function according to claim 1, characterized in that: The collecting mechanism (3) includes a collecting tank (31) and a discharge pipe (32), and a solenoid valve (33) is installed on the outside of the discharge pipe (32).
6. A lubricating oil groove sealing assembly with self-cleaning function according to claim 5, characterized in that: The collection groove (31) is cone-shaped and is located at one end of the sealing block (21).
7. A lubricating oil groove sealing assembly with self-cleaning function according to claim 5, characterized in that: The discharge pipe (32) passes through the hydraulic cylinder (1) and extends to the outside of the hydraulic cylinder (1), and a connector is provided at one end of the discharge pipe (32).
Citation Information
Patent Citations
Sealing assembly with lubricating oil groove
CN222208467U