Telescopic oil cylinder convenient to overhaul and replace

Abstract

The utility model provides a telescopic oil cylinder convenient to overhaul and replace, and relates to the technical field of telescopic oil cylinders. Six thread grooves are annularly formed in the top end of the fixed base; through threaded holes are formed in the four corners of the fixed base correspondingly. When the lower end of the fixed inserting rod is conical and inserted into the ground, resistance can be reduced, the fixed inserting rod can be quickly inserted into the ground, the fixed base and the ground are temporarily and fixedly connected, and the fixed base is stabilized, so that the telescopic oil cylinder cannot move everywhere when bearing pressure, and the telescopic oil cylinder can stably push and pull an object; the problems that when an oil cylinder is used, a base needs to be stably installed, so that the fixed base needs to be temporarily and fixedly connected with the ground, the oil cylinder cannot be stably pushed and pulled if connection is not stable, and if the lower end of the oil cylinder is fixedly welded together, the oil cylinder cannot be disassembled, and parts are inconvenient to replace are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic oil cylinders, in particular to a telescopic oil cylinder which is convenient for maintenance and replacement. Background Art

[0002] Telescopic cylinders are a type of hydraulic actuator commonly used in modern industry and are widely used in various machinery and equipment. Telescopic cylinders can provide strong push and pull forces, but their working environment is complex and the working conditions are harsh. They are prone to wear and leakage, so they need to be regularly inspected and replaced. However, the design of traditional small hydraulic cylinders often fails to fully consider convenience and maintainability, resulting in time-consuming and costly maintenance and replacement. In view of this, we plan to design a new type of small hydraulic cylinder telescopic cylinder that is easy to inspect and replace, so as to improve the reliability of the equipment and reduce maintenance costs.

[0003] During the use of the telescopic cylinder, since the base needs to be firmly installed when the cylinder is in use, it is necessary to temporarily fix the fixed base to the ground. If the connection is not firm, the cylinder cannot be pushed and pulled stably, and if the lower end of the cylinder is fixed and welded together, it cannot be disassembled and it is inconvenient to replace parts. Utility Model Content

[0004] The disclosed embodiment relates to a telescopic oil cylinder which is convenient for inspection and replacement. The lower end of the fixed insertion rod is conical in shape, which can reduce resistance when inserted into the ground and can be quickly inserted into the ground, so that the fixed base is temporarily fixedly connected to the ground and the fixed base is stabilized, so that the telescopic oil cylinder will not move around when bearing pressure, and the telescopic oil cylinder can push and pull objects steadily. The telescopic oil cylinder is made of high-quality steel, and its internal finish and surface roughness play a vital role in the service life and performance of the oil cylinder. When the telescopic oil cylinder is inspected or replaced, it is only necessary to remove the screws and then pull the connecting threaded barrel out of the threaded ring groove. At this time, the parts in the oil cylinder can be replaced or inspected, and it is convenient to enter the interior of the oil cylinder for operation, thereby improving work efficiency.

[0005] In a first aspect of the present disclosure, a telescopic oil cylinder that is easy to inspect and replace is provided, which specifically comprises: a fixed base; the top of the fixed base is provided with six threaded grooves in a ring shape; four corners of the fixed base are respectively provided with threaded holes that penetrate therethrough; a fixed shell is installed in the middle of the fixed base; a cylinder barrel is rotatably installed at the upper end of the fixed shell, and an annular groove is provided on the inner cavity side wall of the cylinder barrel; a sealing groove is provided at the upper end of the inner cavity side wall of the cylinder barrel;

[0006] A piston sealing ring is installed at the annular groove of the inner wall of the cylinder, a dust ring is installed at the sealing groove, fixed ear plates are fixedly installed at the lower ends of both ends of the cylinder, and screws penetrating the fixed ear plates are rotatably installed, a telescopic rod is installed in the cylinder, and a connecting block is fixedly installed in the middle of the top of the telescopic rod;

[0007] A connecting threaded cylinder is fixedly installed at the bottom of the cylinder, and fixed plug rods are rotatably installed at the threaded holes at the four corners of the fixed base, and the lower end of the fixed plug rod is opened into a conical structure; threads are opened on the annular side wall of the fixed plug rod; a control block is fixedly installed on the top of the fixed plug rod; an anti-slip groove is opened in the middle of the top of the fixed base.

[0008] In at least some embodiments, a stabilizing plate is fixedly welded at the lower end of the annular side wall of the fixed shell, and six penetrating circular holes are opened at the edge of the stabilizing plate, and penetrating fasteners are respectively inserted into the six circular holes of the stabilizing plate.

[0009] In at least some embodiments, a through oil filling hole is provided at the lower end of the right end of the fixed shell, and threaded anti-drop holes are provided at the upper ends of both ends of the fixed shell.

[0010] In at least some embodiments, a piston is installed in the inner cavity of the fixed shell, and a threaded ring groove is formed at the edge of the upper end of the fixed shell.

[0011] The utility model provides a telescopic oil cylinder which is easy to repair and replace, and has the following beneficial effects:

[0012] When the telescopic oil cylinder of the utility model is in use, the lower end of the fixed insertion rod is cone-shaped, which can reduce resistance when inserted into the ground, and can be quickly inserted into the ground, so that the fixed base is temporarily fixedly connected to the ground, and the fixed base is stabilized, so that the telescopic oil cylinder will not move around when bearing pressure, and the telescopic oil cylinder can push and pull objects steadily. The telescopic oil cylinder is made of high-quality steel, and its internal finish and surface roughness play a vital role in the service life and performance of the oil cylinder. When the telescopic oil cylinder is overhauled or replaced, it is only necessary to remove the screws and then pull the connecting threaded barrel out of the threaded ring groove. At this time, the parts in the oil cylinder can be replaced or overhauled, and it is convenient to enter the interior of the oil cylinder for operation, thereby improving work efficiency.

[0013] When the telescopic rod is extended and retracted up and down, the dust or debris from the outside is blocked by the dust ring, and the dust cannot enter the oil cylinder, thereby stably pushing the connected objects. The piston seal and dust ring in the telescopic oil cylinder are made of high-quality materials, with good sealing performance and wear resistance, which can effectively prevent leakage and contamination of hydraulic oil and ensure the normal operation of the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached picture:

[0017] Figure 1 The schematic diagram of the upper right front axial structure of the present application is shown;

[0018] Figure 2 A schematic diagram of the disassembled structure of the fixed base and the fixed housing of the present application is shown;

[0019] Figure 3 A schematic diagram of a partially disassembled structure of a cylinder barrel of the present application is shown;

[0020] Figure 4 A schematic diagram of the explosion structure of the present application is shown.

[0021] Reference numerals list

[0022] Fixed base; 101, fixed plug rod; 102, anti-slip groove; 2, fixed shell; 201, stabilizing plate; 202, fastener; 203, oil filling hole; 204, anti-slip hole; 205, piston; 206, threaded ring groove; 3, cylinder barrel; 301, sealing groove; 302, piston sealing ring; 303, dust ring; 304, fixed ear plate; 305, screw; 306, telescopic rod; 307, connecting block; 308, connecting threaded barrel. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figures 1 to 4 :

[0025] The utility model proposes a telescopic oil cylinder which is easy to inspect and replace, comprising: a fixed base 1; the top of the fixed base 1 is provided with six threaded grooves in a ring shape; the four corners of the fixed base 1 are respectively provided with threaded holes that penetrate therethrough; a fixed shell 2 is installed in the middle of the fixed base 1; a cylinder barrel 3 is rotatably installed at the upper end of the fixed shell 2, and an annular groove is provided on the inner cavity side wall of the cylinder barrel 3; fixed plug rods 101 that penetrate therethrough are rotatably installed at the threaded holes at the four corners of the fixed base 1, and the lower end of the fixed plug rod 101 is provided with a conical structure; the lower end of the fixed plug rod 101 is conical in shape, which can reduce resistance when inserted into the ground, and can be quickly inserted into the ground, so that The fixed base 1 is temporarily fixedly connected to the ground to stabilize the fixed base 1 so that the telescopic cylinder will not move around when bearing pressure, thereby stably pushing the connected object. When the road surface is relatively hard, the fixed base 1 is directly placed on the road surface and the cylinder is used. A thread is provided on the annular side wall of the fixed plug rod 101; a control block is fixedly installed on the top of the fixed plug rod 101; the control block on the fixed plug rod 101 is grasped for easy rotation, and the fixed plug rod 101 can be rotated without tools to allow the fixed plug rod 101 to move up and down, and an anti-slip groove 102 is provided in the middle of the top of the fixed base 1, and the lower end of the fixed shell 2 is installed in the anti-slip groove 102.

[0026] Among them, a stabilizing plate 201 is fixedly welded at the lower end of the annular side wall of the fixed shell 2, and six penetrating circular holes are opened at the edge of the stabilizing plate 201, and penetrating fasteners 202 are respectively inserted in the six circular holes of the stabilizing plate 201. The six fasteners 202 are inserted through the stabilizing plate 201 and rotated and inserted in the threaded groove of the fixed base 1 to fix and restrict the fixed shell 2 to prevent the fixed shell 2 from being touched and tilted, which not only affects the use of the oil cylinder, but also causes danger when the oil cylinder tilts during use. A penetrating oil filling hole 203 is opened at the lower end of the right end of the fixed shell 2, and the hydraulic oil is injected into the oil cylinder from the oil filling hole 203. Threaded anti-drop holes 204 are respectively opened at the upper ends of both ends of the fixed shell 2, and a piston 205 is installed in the inner cavity of the fixed shell 2, and the telescopic rod 306 is movably installed in the piston 205. A threaded ring groove 206 is opened at the edge of the upper end of the fixed shell 2.

[0027] Among them, a sealing groove 301 is opened at the upper end of the inner cavity side wall of the cylinder barrel 3, and a piston sealing ring 302 is installed at the annular groove of the inner cavity side wall of the cylinder barrel 3. The hydraulic oil in the oil cylinder is blocked by the piston sealing ring 302 and will not flow everywhere. A dust ring 303 is installed at the sealing groove 301. When the telescopic rod 306 is telescoped up and down, dust or debris from the outside is blocked by the dust ring 303, and dust cannot enter the oil cylinder to affect the use of the telescopic rod 306. Fixed ear plates 304 are fixedly installed at the lower ends of both ends of the cylinder barrel 3, and screws 305 are rotatably installed on the fixed ear plates 304. The telescopic rod 306 is installed in the cylinder barrel 3. A connecting block 307 is fixedly installed in the middle of the top of the telescopic rod 306, and the connecting block 307 is connected to other objects. The telescopic rod 306 is telescopic to push and pull objects. A connecting threaded tube 308 is fixedly installed at the bottom of the cylinder 3. The connecting threaded tube 308 is rotated and inserted into the threaded ring groove 206, and then the screw 305 on the fixed ear plate 304 is rotated and inserted into the anti-drop hole 204, and the cylinder 3 is fixedly installed on the fixed shell 2. When the oil cylinder needs to be repaired and parts replaced, the screw 305 is rotated and removed from the anti-drop hole 204, and then the connecting threaded tube 308 is pulled out from the threaded ring groove 206. At this time, the parts in the oil cylinder can be replaced or repaired.

[0028] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 4 As shown, a stabilizing plate 201 is fixedly welded at the lower end of the annular side wall of the fixed shell 2, and six penetrating circular holes are opened at the edge of the stabilizing plate 201. Penetrating fasteners 202 are respectively inserted in the six circular holes of the stabilizing plate 201. The stabilizing plate 201 and the fasteners 202 and other parts are all deleted, and then the lower end of the fixed shell 2 is fixedly welded to the fixed base 1 to stabilize the fixed shell 2. In this way, the fixed shell 2 will not shake when touched, and the problem of loosening of the fasteners 202 is avoided, while also saving the cost of parts.

[0029] The working principle of this embodiment is as follows: when in use, the six fasteners 202 are inserted through the stabilizing plate 201 and rotated into the threaded groove of the fixed base 1 to restrict the fixed housing 2 to prevent the fixed housing 2 from being touched and tilted. When the telescopic rod 306 is extended and retracted up and down, the dust or debris from the outside is blocked by the dustproof ring 303, and the dust cannot enter the oil cylinder. The lower end of the fixed plug rod 101 is conical, which can reduce resistance when inserted into the ground, and can be quickly inserted into the ground, so that the fixed base 1 is temporarily fixed and connected to the ground. The fixed base 1 is stabilized so that the telescopic oil cylinder will not move around when bearing pressure, thereby stably pushing the connected object, the connecting threaded tube 308 is rotated and inserted into the threaded ring groove 206, and then the screw 305 on the fixed ear plate 304 is rotated and inserted into the anti-drop hole 204, and the cylinder tube 3 is fixedly installed on the fixed shell 2. When the oil cylinder needs to be inspected and parts replaced, the screw 305 is rotated and removed from the anti-drop hole 204, and then the connecting threaded tube 308 is pulled out from the threaded ring groove 206. At this time, the parts in the oil cylinder can be replaced or inspected.

[0030] In this article, there are a few points to note:

[0031] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0032] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0033] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A telescopic oil cylinder that is easy to repair and replace, comprising: A fixed base (1); the top of the fixed base (1) is ring-shaped and has six thread grooves; The fixed base (1) is provided with threaded holes at the four corners thereof; a fixed shell (2) is installed in the middle of the fixed base (1); a cylinder (3) is rotatably installed at the upper end of the fixed shell (2), and an annular groove is provided on the inner cavity side wall of the cylinder (3); it is characterized in that fixed plug rods (101) are rotatably installed at the threaded holes at the four corners of the fixed base (1), and the lower end of the fixed plug rod (101) is provided with a conical structure; threads are provided on the annular side wall of the fixed plug rod (101); a control block is fixedly installed at the top of the fixed plug rod (101); and an anti-slip groove (102) is provided in the middle of the top of the fixed base (1).

2. The telescopic oil cylinder that is easy to repair and replace according to claim 1 is characterized in that: A stabilizing plate (201) is fixedly welded to the lower end of the annular side wall of the fixed housing (2), and six penetrating circular holes are provided at the edge of the stabilizing plate (201), wherein penetrating fasteners (202) are respectively inserted into the six circular holes of the stabilizing plate (201).

3. The telescopic oil cylinder that is easy to repair and replace according to claim 1 is characterized in that: A through oil injection hole (203) is provided at the lower end of the right end of the fixed housing (2), and threaded anti-drop holes (204) are provided at the upper ends of both ends of the fixed housing (2).

4. The telescopic oil cylinder that is easy to repair and replace according to claim 1 is characterized in that: A piston (205) is installed in the inner cavity of the fixed shell (2), and a threaded ring groove (206) is provided at the edge of the upper end of the fixed shell (2).

5. The telescopic oil cylinder that is easy to repair and replace according to claim 1 is characterized in that: A sealing groove (301) is provided at the upper end of the inner cavity side wall of the cylinder barrel (3), a piston sealing ring (302) is installed at the annular groove of the inner cavity side wall of the cylinder barrel (3), and a dustproof ring (303) is installed at the sealing groove (301).

6. The telescopic oil cylinder that is easy to repair and replace according to claim 1 is characterized in that: Fixed ear plates (304) are respectively fixedly mounted at the lower ends of both ends of the cylinder barrel (3), and screws (305) are rotatably mounted on the fixed ear plates (304) to penetrate therethrough. A telescopic rod (306) is mounted inside the cylinder barrel (3).

7. The telescopic oil cylinder that is easy to repair and replace according to claim 6 is characterized in that: A connecting block (307) is fixedly mounted in the middle of the top end of the telescopic rod (306), and a connecting threaded cylinder (308) is fixedly mounted at the bottom of the cylinder (3).

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