A through-hole type lightweight hydraulic cylinder barrel

Abstract

This utility model relates to the field of hydraulic cylinder technology and discloses a through-hole type lightweight hydraulic cylinder barrel, including a cylinder barrel, a piston slidably connected to the inner wall of the cylinder barrel, and a sealing ring fixedly connected to the outer wall of the piston. This utility model reduces the overall weight of the hydraulic cylinder by adopting a thin-walled design for the cylinder barrel, thereby reducing the energy cost and operating consumption of the equipment. The sealing ring fixed to the outer wall of the piston seals the interior of the piston during movement. Simultaneously, a first sealing ring slides on the outer wall of the piston rod to prevent oil leakage and contamination. Furthermore, when the piston rod is impacted, the thin-walled design of the cylinder barrel may cause it to burst under pressure. In this case, a sliding fixed rod slides inside the piston, and a return spring and a first return spring are respectively sleeved on the outer wall of the fixed rod. These springs absorb the impact energy, reducing the rigid collision between the piston and the cylinder barrel end, thereby improving the overall service life of the hydraulic cylinder.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a through-hole type lightweight hydraulic cylinder barrel. Background Technology

[0002] A hydraulic cylinder is an actuator in a hydraulic system that converts the pressure energy of hydraulic oil into mechanical energy, outputting linear reciprocating motion or oscillating movements. It uses the pressure of hydraulic oil to push an internal piston, generating thrust or pull force to drive the load, such as raising or lowering heavy objects or extending and retracting mechanical parts. Its characteristics include high output force, providing strong power in confined spaces, smooth movement, good controllability, and precise control of speed and position. In various types of machinery, it acts as the "power muscle," driving equipment to perform actions such as gripping, pushing, and lifting. It is a key component for realizing mechanical force transmission and motion control.

[0003] The hydraulic cylinders in the existing technology are relatively heavy. During equipment operation, the hydraulic system needs to consume more energy to drive the cylinder's starting, acceleration, deceleration and reversing actions. This not only significantly increases the energy cost of the equipment, but in construction machinery that operates continuously, the additional energy consumption may lead to a significant increase in fuel consumption, thereby significantly increasing operating costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a through-hole type lightweight hydraulic cylinder barrel.

[0005] This utility model is achieved using the following technical solution: a through-hole type lightweight hydraulic cylinder barrel, including a cylinder barrel, a piston slidably connected to the inner wall of the cylinder barrel, a sealing ring fixedly connected to the outer wall of the piston, a fixed rod slidably connected to the inside of the piston, a return spring sleeved on the outer wall of the fixed rod, a first return spring sleeved on the outer wall of the fixed rod, a piston rod fixedly connected to the outer wall of the piston, and a first sealing ring slidably connected to the outer wall of the piston rod at the end away from the piston.

[0006] As a further improvement to the above solution, the fixing rod is fixedly connected to the inner wall of the cylinder, and the first sealing ring is fixedly connected to the inner wall of the cylinder.

[0007] Through the above technical solution, the cylinder adopts a thin-walled design, which can reduce the overall weight of the hydraulic cylinder, reduce the energy cost and operating consumption of the equipment, and fix a sealing ring on the outer wall of the piston. The sealing ring can seal the inside of the piston when it moves. At the same time, a first sealing ring slides on the outer wall of the piston rod to prevent oil leakage and contamination. When the piston rod is impacted, the cylinder may burst due to the pressure caused by the thin-walled design of the cylinder. At this time, a sliding fixed rod slides inside the piston, and a return spring and a first return spring are respectively sleeved on the outer wall of the fixed rod. The impact energy is absorbed by the springs, reducing the rigid collision between the piston and the cylinder end, thereby improving the service life of the overall hydraulic cylinder.

[0008] As a further improvement to the above solution, a limiting block is fixedly connected to the outer wall of the cylinder, and a fixing plate is provided in contact with the outer wall of the limiting block.

[0009] As a further improvement to the above solution, a screw is slidably connected to the inner wall of the fixing plate, and a nut is threadedly connected to one end of the screw near the fixing plate.

[0010] Through the above technical solution, the nut presses the fixing plate closer to the limiting block, thereby protecting the outer wall of the cylinder and preventing the cylinder from being damaged by external force.

[0011] As a further improvement to the above solution, an oil pipe is connected inside the cylinder, a support plate is fixedly connected to the inner wall of the oil pipe, and a sliding rod is slidably connected inside the support plate.

[0012] As a further improvement to the above solution, a compression spring is sleeved on the outer wall of the sliding rod, and a blocking block is fixedly connected to the end of the sliding rod away from the support plate.

[0013] As a further improvement to the above solution, a connecting rod is fixedly connected to the end of the block away from the sliding rod, and a second sealing ring is fixedly connected to the outer wall of the end of the connecting rod away from the block.

[0014] With the above technical solution, when the external pipe is disconnected from the oil pipe, the compression spring sleeved on the outer wall of the sliding rod pushes the plug block through elastic potential energy, causing the plug block to seal the inside of the oil pipe, thereby preventing hydraulic oil leakage inside the cylinder, reducing resource waste, and ensuring the cleanliness of the site.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a thin-walled cylinder design, thereby reducing the overall weight of the hydraulic cylinder, lowering energy costs and operating consumption. A sealing ring is fixed to the outer wall of the piston, sealing the interior during piston movement. Simultaneously, a first sealing ring slides on the outer wall of the piston rod, preventing oil leakage and contamination. Furthermore, when the piston rod is impacted, the thin-walled cylinder may burst under pressure. In this case, a sliding fixed rod slides inside the piston, with a return spring and a first return spring respectively fitted on the outer wall of the fixed rod. These springs absorb impact energy, reducing rigid collisions between the piston and the cylinder end, thus improving the overall service life of the hydraulic cylinder.

[0017] This invention prevents hydraulic oil leakage inside the cylinder by using the compression spring sleeved on the outer wall of the sliding rod to push the plug block through elastic potential energy when the external pipe is disconnected from the oil pipe, thereby reducing resource waste and ensuring the cleanliness of the site. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the cylinder of this utility model;

[0020] Figure 3 This is a schematic diagram of the screw structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the oil pipe structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the oil pipe of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Cylinder; 2. Piston; 3. Sealing ring; 4. Fixing rod; 5. Return spring; 6. First return spring; 7. Piston rod; 8. First sealing ring; 9. Limiting block; 10. Fixing plate; 11. Screw; 12. Nut; 13. Oil pipe; 14. Support plate; 15. Sliding rod; 16. Compression spring; 17. Plug; 18. Connecting rod; 19. Second sealing ring. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5This embodiment discloses a through-hole type lightweight hydraulic cylinder barrel, including a cylinder barrel 1, a piston 2 slidably connected to the inner wall of the cylinder barrel 1, a sealing ring 3 fixedly connected to the outer wall of the piston 2, a fixed rod 4 slidably connected inside the piston 2, a return spring 5 sleeved on the outer wall of the fixed rod 4, a first return spring 6 sleeved on the outer wall of the fixed rod 4, a piston rod 7 fixedly connected to the outer wall of the piston 2, and a first sealing ring 8 slidably connected to the outer wall of the piston rod 7 away from the piston 2.

[0028] The fixing rod 4 is fixedly connected to the inner wall of the cylinder 1, and the first sealing ring 8 is fixedly connected to the inner wall of the cylinder 1.

[0029] A limiting block 9 is fixedly connected to the outer wall of cylinder 1, and a fixing plate 10 is provided in contact with the outer wall of the limiting block 9.

[0030] A screw 11 is slidably connected to the inner wall of the fixing plate 10, and a nut 12 is threadedly connected to one end of the screw 11 near the fixing plate 10.

[0031] The cylinder 1 is internally connected to an oil pipe 13, and a support plate 14 is fixedly connected to the inner wall of the oil pipe 13. A sliding rod 15 is slidably connected inside the support plate 14.

[0032] A compression spring 16 is sleeved on the outer wall of the sliding rod 15, and a block 17 is fixedly connected to the end of the sliding rod 15 away from the support plate 14.

[0033] A connecting rod 18 is fixedly connected to the end of the block 17 away from the sliding rod 15, and a second sealing ring 19 is fixedly connected to the outer wall of the end of the connecting rod 18 away from the block 17.

[0034] The implementation principle of a through-hole lightweight hydraulic cylinder barrel in this embodiment is as follows: The cylinder barrel 1 adopts a thin-wall design, which can reduce the weight of the overall cylinder, reduce the energy cost and operating consumption of the equipment. A sealing ring 3 is fixed on the outer wall of the piston 2. The sealing ring 3 can seal the inside of the piston 2 when it moves. At the same time, a first sealing ring 8 slides on the outer wall of the piston rod 7. The first sealing ring 8 prevents oil leakage and pollution. At the same time, when the piston rod 7 is impacted, the cylinder barrel 1 may burst under pressure due to the thin-wall design of the cylinder barrel 1. At this time, a fixed rod 4 slides inside the piston 2. A return spring 5 and a first return spring 6 are respectively sleeved on the outer wall of the fixed rod 4. The impact energy is absorbed by the springs, reducing the rigid collision of the piston 2 with the end of the cylinder barrel 1, thereby improving the service life of the overall cylinder. A limiting block 9 is fixed on the outer wall of the cylinder barrel 1. When the two fixed plates 10 slide simultaneously... After the cylinder barrel 1 is moved to the outer wall, the screw 11 is slid on the inner wall of the fixing plate 10. The screw 11 is connected to the nut 12 by a thread, so that the nut 12 presses the fixing plate 10 closer to the limit block 9, thereby protecting the outer wall of the cylinder barrel 1 and preventing the cylinder barrel 1 from being damaged by external force. When the external pipe is connected to the oil pipe 13, the external pipe compresses the second sealing ring 19, so that the second sealing ring 19 pushes the plug 17 through the connecting rod 18. At this time, the inside of the oil pipe 13 is opened, and the plug 17 slides inside the support plate 14 through the sliding rod 15. The support plate 14 supports the sliding rod 15. When the external pipe is disconnected from the oil pipe 13, the compression spring 16 sleeved on the outer wall of the sliding rod 15 pushes the plug 17 through elastic potential energy, so that the plug 17 seals the inside of the oil pipe 13, thereby preventing the hydraulic oil inside the cylinder barrel 1 from leaking, reducing resource waste, and ensuring the cleanliness of the site.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A lightweight hydraulic cylinder barrel with a through-hole design, characterized in that, The cylinder (1) is slidably connected to the inner wall of the cylinder (1), a sealing ring (3) is fixedly connected to the outer wall of the piston (2), a fixed rod (4) is slidably connected inside the piston (2), a return spring (5) is sleeved on the outer wall of the fixed rod (4), a first return spring (6) is sleeved on the outer wall of the fixed rod (4), a piston rod (7) is fixedly connected to the outer wall of the piston (2), and a first sealing ring (8) is slidably connected to the outer wall of the piston rod (7) away from the piston (2).

2. The through-hole lightweight hydraulic cylinder barrel as described in claim 1, characterized in that: The fixing rod (4) is fixedly connected to the inner wall of the cylinder (1), and the first sealing ring (8) is fixedly connected to the inner wall of the cylinder (1).

3. The through-hole type lightweight hydraulic cylinder barrel as described in claim 1, characterized in that: The cylinder (1) is fixedly connected to a limiting block (9), and a fixing plate (10) is provided in contact with the outer wall of the limiting block (9).

4. The through-hole lightweight hydraulic cylinder barrel as described in claim 3, characterized in that: A screw (11) is slidably connected to the inner wall of the fixing plate (10), and a nut (12) is threadedly connected to one end of the screw (11) near the fixing plate (10).

5. The through-hole lightweight hydraulic cylinder barrel as described in claim 1, characterized in that: The cylinder (1) is internally connected to an oil pipe (13), and a support plate (14) is fixedly connected to the inner wall of the oil pipe (13). A sliding rod (15) is slidably connected inside the support plate (14).

6. The through-hole lightweight hydraulic cylinder barrel as described in claim 5, characterized in that: A compression spring (16) is sleeved on the outer wall of the sliding rod (15), and a block (17) is fixedly connected to one end of the sliding rod (15) away from the support plate (14).

7. The through-hole lightweight hydraulic cylinder barrel as described in claim 6, characterized in that: The end of the block (17) away from the sliding rod (15) is fixedly connected to a connecting rod (18), and the outer wall of the end of the connecting rod (18) away from the block (17) is fixedly connected to a second sealing ring (19).

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