Leak-proof hydraulic oil cylinder

Abstract

The utility model discloses a leakproof hydraulic oil cylinder which comprises a cylinder barrel, a lower end cover, an upper end cover, a telescopic assembly, a lower fixing assembly, an upper fixing assembly and a fastener, the lower end cover is connected to the bottom of the cylinder barrel through a bolt, and the upper end cover is connected to the top of the cylinder barrel through a bolt. The telescopic assembly is arranged in the cylinder barrel, the lower fixing assembly comprises a lower fixing frame arranged at the bottom of the lower end cover, a fastening rotary knob in threaded connection with the lower fixing frame and an oil storage tank formed in the top end of the lower fixing frame, and the upper fixing assembly comprises an upper fixing frame inserted in the lower fixing frame in a penetrating mode. The fasteners are arranged on the lower fixing assembly and the upper fixing assembly. Through the arrangement of the lower fixing assembly and the upper fixing assembly, under the condition that the work of the hydraulic oil cylinder is not affected, the effect of supporting the device during disassembly is achieved, disassembly and maintenance are facilitated, meanwhile, the limiting effect can be achieved, and stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of leak - proof hydraulic cylinders, and specifically relates to a leak - proof hydraulic cylinder. Background Technique

[0002] The leak - proof hydraulic cylinder effectively improves the reliability and efficiency of the hydraulic system through measures such as optimizing the sealing structure, reducing joints and flanges, installing buffer devices, designing anti - powder and debris devices, and regular maintenance and inspection. When the leak - proof hydraulic cylinder is in use, faults are inevitable. Since the leak - proof hydraulic cylinder requires a support device, the gravity of the device hinders disassembly during disassembly, and the disassembly difficulty is large, there are certain deficiencies. For this reason, we propose a leak - proof hydraulic cylinder. Content of the Utility Model

[0003] The utility model aims to solve the problems existing in the prior art or related technologies.

[0004] For this reason, the technical solution adopted by the utility model is as follows: a leak - proof hydraulic cylinder, including a cylinder barrel, a lower end cover, an upper end cover, a telescopic assembly, a lower fixing assembly, an upper fixing assembly, and a fastener. The lower end cover is bolt - connected to the bottom of the cylinder barrel, the upper end cover is bolt - connected to the top of the cylinder barrel, the telescopic assembly is arranged inside the cylinder barrel. The lower fixing assembly includes a lower fixing frame arranged at the bottom of the lower end cover, a fastening knob thread - connected to the lower fixing frame, and an oil storage groove opened at the top end of the lower fixing frame. The upper fixing assembly includes an upper fixing frame inserted on the lower fixing frame, and the fastener is arranged on the lower fixing assembly and the upper fixing assembly.

[0005] Preferably, an inlet and outlet are arranged at the front end of the cylinder barrel.

[0006] Preferably, a lower fixing plate is arranged at the bottom end of the lower end cover.

[0007] Preferably, the telescopic assembly includes a telescopic rod inserted on the upper end cover, an upper fixing plate arranged at the top end of the telescopic rod, a piston arranged at the bottom of the telescopic rod, and a spring arranged at the top of the piston.

[0008] Preferably, a lower installation pipe is arranged at the bottom end of the lower fixing frame, and a through - hole is opened on the lower fixing frame.

[0009] Preferably, an upper installation pipe is arranged at the top end of the upper fixing frame.

[0010] By adopting the above technical solution, the beneficial effects achieved by the present utility model are as follows: By setting the lower fixing component and the upper fixing component, the effect of supporting the device during disassembly can be achieved without affecting the operation of the hydraulic cylinder, so as to facilitate disassembly and maintenance. At the same time, it can play a limiting role and has high stability. During use, the user can tighten the fastening knob of the lower fixing component. After tightening, the lower fixing frame and the upper fixing frame can be fixed. After fixing, the device can be supported by the lower fixing frame and the upper fixing frame. Then, the cylinder barrel, the lower end cover, the upper end cover and the telescopic component can be directly disassembled, avoiding the influence of the gravity of the device on the disassembly of the hydraulic cylinder. At the same time, when the telescopic rod moves, it will drive the upper fixing frame, and the telescopic rod can move linearly through the cooperation of the upper fixing frame and the lower fixing frame, so as to improve stability. Then, the oil storage groove can be filled with lubricating oil. After filling, the lubricating oil will lubricate the lower fixing frame and the upper fixing frame, reducing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 for the present utility model Figure 1 is a schematic structural diagram of the cylinder barrel, the lower end cover, the upper end cover and the telescopic component in the present utility model;

[0013] Figure 3 for the present utility model Figure 1 is a schematic structural diagram of the upper fixing component and the lower fixing component in the present utility model;

[0014] Figure 4 for the present utility model Figure 3 is a schematic structural diagram of the lower fixing component in the present utility model.

[0015] REFERENCE SIGNS:

[0016] 100, cylinder barrel; 101, inlet and outlet;

[0017] 200, lower end cover; 201, lower fixing plate;

[0018] 300, upper end cover;

[0019] 400, telescopic component; 401, telescopic rod; 402, upper fixing plate; 403, piston; 404, spring;

[0020] 500, lower fixing component; 501, lower fixing frame; 502, lower installation pipe; 503, fastening knob; 504, oil storage groove; 505, through hole;

[0021] 600, upper fixing component; 601, upper fixing frame; 602, upper installation pipe;

[0022] 700, fastener. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions, and advantages of the present utility model clearer and more explicit, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0024] Some embodiments of the present utility model will be described below with reference to the accompanying drawings to provide an anti-leakage hydraulic cylinder.

[0025] Embodiment 1:

[0026] Referring to Figures 1-4 , which is the first embodiment of the present utility model. This embodiment provides an anti-leakage hydraulic cylinder, including a cylinder barrel 100, a lower end cover 200, an upper end cover 300, a telescopic assembly 400, a lower fixing assembly 500, an upper fixing assembly 600, and a fastener 700.

[0027] Specifically, an inlet / outlet 101 is provided at the front end of the cylinder barrel 100. During use, the inlet / outlet 101 can be connected to the pipeline of an oil supply device to inject hydraulic oil into the cylinder barrel 100.

[0028] Specifically, the lower end cover 200 is bolted to the bottom of the cylinder barrel 100. A lower fixing plate 201 is provided at the bottom end of the lower end cover 200. During use, the lower fixing plate 201 can increase the contact area between the lower end cover 200 and the lower fixing assembly 500 for fixation.

[0029] Specifically, the upper end cover 300 is bolted to the top of the cylinder barrel 100. During use, the upper end cover 300 is used to seal the cylinder barrel 100 to prevent the entry of external dust, so that the telescopic assembly 400 can telescope.

[0030] Specifically, the telescopic assembly 400 is disposed inside the cylinder barrel 100. The telescopic assembly 400 includes a telescopic rod 401 inserted through the upper end cover 300, an upper fixing plate 402 provided at the top end of the telescopic rod 401, a piston 403 provided at the bottom of the telescopic rod 401, and a spring 404 provided at the top of the piston 403. During use, injecting hydraulic oil can push the piston 403 and the telescopic rod 401 to move upward. When discharging the hydraulic oil, due to the elasticity of the spring 404, the telescopic rod 401 moves downward to drive the device.

[0031] Specifically, the lower fixing component 500 includes a lower fixing frame 501 disposed at the bottom of the lower end cover 200, a fastening knob 503 threadedly connected to the lower fixing frame 501, and an oil storage groove 504 formed at the top end of the lower fixing frame 501. A lower mounting tube 502 is provided at the bottom end of the lower fixing frame 501, and a through hole 505 is formed in the lower fixing frame 501. During use, the fastening knob 503 can be tightened. After tightening, the lower fixing frame 501 and the upper fixing component 600 can be fixed. After fixing, the device can be supported by the lower fixing component 500 and the upper fixing component 600. Then, the cylinder barrel 100, the lower end cover 200, the upper end cover 300, and the telescopic component 400 can be directly disassembled, avoiding the influence of the gravity of the device on the disassembly of the hydraulic cylinder. Then, lubricating oil can be poured through the oil storage groove 504. After pouring, the lubricating oil will lubricate the lower fixing frame 501 and the upper fixing frame 601, reducing wear.

[0032] Specifically, the upper fixing component 600 includes an upper fixing frame 601 inserted into the lower fixing frame 501. An upper mounting tube 602 is provided at the top end of the upper fixing frame 601. During use, when the telescopic rod 401 moves, it will drive the upper fixing frame 601. The telescopic rod 401 can move linearly through the cooperation of the upper fixing frame 601 and the lower fixing frame 501, so as to improve stability.

[0033] Specifically, the fasteners 700 are arranged on the lower fixing component 500 and the upper fixing component 600. The fasteners 700 are composed of bolts and nuts. During use, the telescopic component 400 and the upper fixing component 600 can be fixed through the fasteners 700, and the lower fixing component 500 and the lower end cover 200 can also be fixed, facilitating the disassembly of the hydraulic cylinder.

[0034] The working principle and usage process of the present utility model: During use, the user can tighten the fastening knob 503 of the lower fixing component 500. After tightening, the lower fixing frame 501 and the upper fixing frame 601 can be fixed. After fixing, the device can be supported by the lower fixing frame 501 and the upper fixing frame 601. Then, the cylinder barrel 100, the lower end cover 200, the upper end cover 300, and the telescopic component 400 can be directly disassembled, avoiding the influence of the gravity of the device on the disassembly of the hydraulic cylinder. At the same time, when the telescopic rod 401 moves, it will drive the upper fixing frame 601. The telescopic rod 401 can move linearly through the cooperation of the upper fixing frame 601 and the lower fixing frame 501, so as to improve stability. Then, lubricating oil can be poured through the oil storage groove 504. After pouring, the lubricating oil will lubricate the lower fixing frame 501 and the upper fixing frame 601, reducing wear.

[0035] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A leak-proof hydraulic cylinder, characterized in that: include: Cylinder (100); A lower end cover (200) bolted to the bottom of the cylinder barrel (100); An upper end cover (300) bolted to the top of the cylinder barrel (100); A telescopic assembly (400) is arranged inside the cylinder (100); A lower fixing assembly (500) comprises a lower fixing frame (501) arranged at the bottom of the lower end cover (200), a tightening knob (503) threadedly connected to the lower fixing frame (501), and an oil storage tank (504) opened at the top of the lower fixing frame (501); An upper fixing assembly (600), comprising an upper fixing frame (601) inserted into the lower fixing frame (501); The fastener (700) is arranged on the lower fixing component (500) and the upper fixing component (600).

2. The anti-leakage hydraulic cylinder according to claim 1, characterized in that: The front end of the cylinder (100) is provided with an inlet and outlet (101).

3. The anti-leakage hydraulic cylinder according to claim 1, characterized in that: A lower fixing plate (201) is provided at the bottom end of the lower end cover (200).

4. The anti-leakage hydraulic cylinder according to claim 1, characterized in that: The telescopic assembly (400) comprises a telescopic rod (401) inserted into the upper end cover (300), an upper fixing plate (402) arranged at the top of the telescopic rod (401), a piston (403) arranged at the bottom of the telescopic rod (401), and a spring (404) arranged at the top of the piston (403).

5. The anti-leakage hydraulic cylinder according to claim 1, characterized in that: A lower mounting tube (502) is provided at the bottom end of the lower fixing frame (501), and a through hole (505) is provided on the lower fixing frame (501).

6. The anti-leakage hydraulic cylinder according to claim 1, characterized in that: An upper mounting tube (602) is provided at the top end of the upper fixing frame (601).

7. The anti-leakage hydraulic cylinder according to claim 1, characterized in that: The fastener (700) is composed of a bolt and a nut.

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