Hydraulic oil cylinder with convenient function

Abstract

The hydraulic oil cylinder with the convenient function comprises an oil cylinder main body, a sealing assembly and a limiting assembly, the sealing assembly comprises a connecting pipe, the connecting pipe is arranged at the top of the oil cylinder main body, a fixing block is fixedly connected to the top of the oil cylinder main body, the connecting pipe is located in the fixing block, and the limiting assembly is arranged on the connecting pipe. A sealing block is arranged on the inner side of the fixing block, a sealing layer is fixedly connected to the outer side of the sealing block, the sealing block is located at the top of the oil cylinder body, a threaded sleeve is fixedly connected to the outer side of the sealing block, a rotating rod is in threaded connection with the interior of the threaded sleeve, and a supporting block is fixedly connected to the top of the oil cylinder body. The rotating rod is located in the supporting block. The sealing assembly is used for sealing and protecting the pipeline, aging of the hydraulic oil cylinder connecting pipe is avoided after long-time use, the phenomenon of oil leakage is prevented during use, frequent maintenance by a user is not needed, and inconvenience in use is avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder with convenient functions. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion (or oscillating motion). The following is a detailed introduction to hydraulic cylinders: A hydraulic cylinder mainly consists of the following five parts: Cylinder barrel and cylinder head: This is the main structure of the hydraulic cylinder, used to house hydraulic oil and the piston; Piston and piston rod: The piston reciprocates inside the cylinder barrel, and the piston rod is connected to the piston, transmitting the piston's motion to the outside; Sealing device: Used to prevent hydraulic oil leakage and ensure the normal operation of the hydraulic cylinder; Buffer device: Used to reduce the impact of the piston at the end of its stroke, protecting the hydraulic cylinder and mechanical equipment; Exhaust device: Used to remove air from the hydraulic cylinder, preventing cavitation and vibration. The working principle of a hydraulic cylinder is based on Pascal's principle, that is, the pressure on a closed fluid can be transmitted in all directions without change. When hydraulic oil enters the cylinder through a check valve, due to the action of the check valve, the hydraulic oil cannot flow back, thus forcing the cylinder rod to move upwards. By continuously increasing the pressure, hydraulic oil continuously enters the hydraulic cylinder, and the cylinder rod continuously rises. When it is necessary to lower the cylinder rod, the hydraulic valve is opened to allow the hydraulic oil to return to the oil tank.

[0003] According to a multi-stage hydraulic cylinder published on the China Patent Network with publication number CN218760711U, it includes a hydraulic cylinder body, a base fixed to the bottom of the hydraulic cylinder body, and a stabilizing component. The stabilizing component uses a limiting plate to fit and limit the hydraulic cylinder body, and a telescopic adjustment component to pull the limiting plate closer to the base for fixation. As the limiting plate and the positioning base are pulled closer, the telescopic adjustment component tightly fixes the hydraulic cylinder body to the base. An annular rubber plate at the top of the limiting plate and the hydraulic cylinder body provides buffering between the stabilizing component and the hydraulic cylinder body, preventing damage to the limiting plate as it is pulled closer. The annular rubber plate also tightens the connection between the limiting plate and the base, thus improving the stability of the hydraulic cylinder body during use and preventing instability caused by vibrations during operation. However, this hydraulic cylinder lacks convenient components, and the hydraulic cylinder connecting pipe is prone to aging after prolonged use, leading to oil leaks. It requires frequent maintenance and repair by the user, making it inconvenient to use.

[0004] Therefore, it is necessary to redesign and modify the hydraulic cylinder to effectively prevent the need for multiple maintenance. Utility Model Content

[0005] To address the problems mentioned in the background section, the present invention aims to provide a hydraulic cylinder with convenient functions, which has the advantage of reducing the number of maintenance operations and solves the problem of requiring multiple maintenance operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder with convenient functions, comprising a cylinder body, a sealing assembly, and a limiting assembly;

[0007] The sealing assembly includes a connecting pipe disposed on the top of the cylinder body. A fixing block is fixedly connected to the top of the cylinder body. The connecting pipe is located inside the fixing block. A sealing block is disposed on the inner side of the fixing block. A sealing layer is fixedly connected to the outer side of the sealing block. The sealing block is located on the top of the cylinder body. A threaded sleeve is fixedly connected to the outer side of the sealing block. A rotating rod is threadedly connected to the inner side of the threaded sleeve. A support block is fixedly connected to the top of the cylinder body. The rotating rod is located inside the support block.

[0008] In a preferred embodiment of this invention, the limiting component includes a ratchet tooth, which is fixedly connected to the surface of the rotating rod. A spring plate is fixedly connected inside the support block, and a check pawl is fixedly connected to the top of the spring plate. The check pawl is located inside the support block and is movably connected to the support block. The check pawl works in conjunction with the ratchet tooth.

[0009] As a preferred embodiment of this invention, a pull bar is fixedly connected to the left side of the check pawl, and the left side of the pull bar extends through to the left side of the support block.

[0010] As a preferred embodiment of this invention, an anti-slip sleeve is fixedly connected to the surface of the rotating rod, and the surface of the anti-slip sleeve is provided with anti-slip texture.

[0011] In a preferred embodiment of this invention, a limiting block is fixedly connected to the inner side of the fixing block, and the sealing block is located inside the limiting block.

[0012] As a preferred embodiment of this utility model, two reinforcing plates are fixedly connected to both sides of the cylinder body.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a sealing component to seal and protect the pipeline, preventing the hydraulic cylinder connecting pipe from aging after long-term use and preventing oil leakage during use. It does not require frequent maintenance and repair by the user and is inconvenient to use.

[0015] 2. By setting a limiting component, this utility model can limit the rotation of the rod, prevent the rod from rotating in the opposite direction, and improve the stability of the rod.

[0016] 3. By setting a pull bar, this utility model makes it easier for users to pull the check pawl, thus improving the ease of use of the check pawl.

[0017] 4. By setting an anti-slip sleeve, this utility model can increase the friction between the user and the rotating rod, thereby improving the grip stability of the rotating rod.

[0018] 5. By setting a limiting block, this utility model can limit the sealing block, thereby improving the stability of the sealing block.

[0019] 6. By setting a reinforcing plate, this utility model can strengthen the fixing block and improve its stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of the fixing block of this utility model;

[0022] Figure 3 This is a three-dimensional schematic diagram of the sealing block of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the support block of this utility model.

[0024] In the diagram: 1. Cylinder body; 2. Sealing assembly; 201. Connecting pipe; 202. Fixing block; 203. Sealing block; 204. Sealing layer; 205. Screw sleeve; 206. Rotating rod; 207. Support block; 3. Limiting assembly; 301. Ratchet tooth; 302. Spring plate; 303. Check pawl; 4. Pull bar; 5. Anti-slip sleeve; 6. Limiting block; 7. Reinforcing plate. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 4 As shown, the present invention provides a hydraulic cylinder with convenient functions, including a cylinder body 1, a sealing component 2 and a limiting component 3;

[0027] The sealing assembly 2 includes a connecting pipe 201, which is located on the top of the cylinder body 1. A fixing block 202 is fixedly connected to the top of the cylinder body 1. The connecting pipe 201 is located inside the fixing block 202. A sealing block 203 is provided on the inner side of the fixing block 202. A sealing layer 204 is fixedly connected to the outer side of the sealing block 203. The sealing block 203 is located on the top of the cylinder body 1. A threaded sleeve 205 is fixedly connected to the outer side of the sealing block 203. A rotating rod 206 is threadedly connected to the inner side of the threaded sleeve 205. A support block 207 is fixedly connected to the top of the cylinder body 1. The rotating rod 206 is located inside the support block 207.

[0028] refer to Figure 4 The limiting component 3 includes a ratchet tooth 301, which is fixedly connected to the surface of the rotating rod 206. A spring plate 302 is fixedly connected inside the support block 207. A check pawl 303 is fixedly connected to the top of the spring plate 302. The check pawl 303 is located inside the support block 207 and is movably connected to the support block 207. The check pawl 303 works in conjunction with the ratchet tooth 301.

[0029] As a technical optimization of this utility model, by setting the limiting component 3, the rotating rod 206 can be limited to prevent it from rotating in the opposite direction, thereby improving the stability of the rotating rod 206.

[0030] refer to Figure 4 A pull bar 4 is fixedly connected to the left side of the check pawl 303, and the left side of the pull bar 4 extends through to the left side of the support block 207.

[0031] As a technical optimization of this utility model, by setting the pull bar 4, it is easier for the user to pull the check pawl 303, thus improving the ease of use of the check pawl 303.

[0032] refer to Figure 3 The surface of the rotating rod 206 is fixedly connected with an anti-slip sleeve 5, and the surface of the anti-slip sleeve 5 is provided with anti-slip texture.

[0033] As a technical optimization of this utility model, by setting the anti-slip sleeve 5, the friction between the user and the rotating rod 206 can be increased, thereby improving the grip stability of the rotating rod 206.

[0034] refer to Figure 3 The inner side of the fixing block 202 is fixedly connected to the limiting block 6, and the sealing block 203 is located inside the limiting block 6.

[0035] As a technical optimization of this utility model, by setting the limiting block 6, the sealing block 203 can be limited, thereby improving the stability of the sealing block 203.

[0036] refer to Figure 3Two reinforcing plates 7 are fixedly connected to both sides of the cylinder body 1.

[0037] As a technical optimization of this utility model, by setting the reinforcing plate 7, the fixing block 202 can be strengthened, thereby improving the stability of the fixing block 202.

[0038] The working principle and usage process of this utility model are as follows: When it is necessary to seal the connecting pipe 201, rotate the rotating rod 206. The rotating rod 206 drives the threaded sleeve 205 to move outward through the thread. The threaded sleeve 205 pushes the sealing block 203 to move outward, so that the sealing block 203 moves to the inside of the fixed block 202. The sealing layer 204 seals the gap between the connecting pipe 201 and the sealing block 203, thus achieving the sealing effect. At this time, the spring plate 302 limits the check pawl 303, and the check pawl 303 limits the ratchet tooth 301 to prevent the ratchet tooth 301 from rotating in the opposite direction to the rotating rod 206. This way, the sealing reduces maintenance and makes it convenient for users to use.

[0039] In summary, this convenient hydraulic cylinder utilizes sealing components to protect the pipeline, preventing aging of the hydraulic cylinder connection pipes after prolonged use and preventing oil leakage during use. It eliminates the need for frequent maintenance and repairs, reducing inconvenience and solving the problem of requiring multiple maintenance steps.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder with convenient function, comprising a cylinder body (1), a sealing assembly (2) and a limiting assembly (3); characterized in that The sealing assembly (2) comprises a connecting pipe (201), which is arranged at the top of the cylinder body (1); the top of the cylinder body (1) is fixedly connected with a fixed block (202); the connecting pipe (201) is located in the inside of the fixed block (202); the inside of the fixed block (202) is provided with a sealing block (203); the outside of the sealing block (203) is fixedly connected with a sealing layer (204); the sealing block (203) is located at the top of the cylinder body (1); the outside of the sealing block (203) is fixedly connected with a screw sleeve (205); the inside of the screw sleeve (205) is threadedly connected with a rotating rod (206); the top of the cylinder body (1) is fixedly connected with a supporting block (207); and the rotating rod (206) is located in the inside of the supporting block (207).

2. The hydraulic cylinder with convenient function according to claim 1, characterized in that: The limiting assembly (3) comprises a ratchet tooth (301), which is fixedly connected with the surface of the rotating rod (206); the inside of the supporting block (207) is fixedly connected with an elastic plate (302); the top of the elastic plate (302) is fixedly connected with a check claw (303); the check claw (303) is located in the inside of the supporting block (207) and is movably connected with the supporting block (207); and the check claw (303) is used in cooperation with the ratchet tooth (301).

3. The hydraulic cylinder with convenient function according to claim 2, characterized in that: The left side of the check claw (303) is fixedly connected with a pulling strip (4), and the left side of the pulling strip (4) penetrates to the left side of the supporting block (207).

4. The hydraulic cylinder with convenient functions according to claim 1, characterized in that: The surface of the rotating rod (206) is fixedly connected with an anti-skid sleeve (5), and the surface of the anti-skid sleeve (5) is provided with anti-skid lines.

5. The hydraulic cylinder with convenient function according to claim 1, characterized in that: The inside of the fixed block (202) is fixedly connected with a limiting block (6), and the sealing block (203) is located in the inside of the limiting block (6).

6. The hydraulic cylinder with convenient function according to claim 1, characterized in that: Both sides of the cylinder body (1) are fixedly connected with reinforcing plates (7), and the number of the reinforcing plates (7) is two.

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