Piston and piston rod connecting structure capable of preventing upper piston rod from being broken

Abstract

The piston and piston rod connecting structure capable of preventing the upper piston rod from being broken comprises the piston rod, a connecting rod is fixedly connected to the middle position of the right side of the piston rod, the other end of the connecting rod is connected with the piston through an inserting rod, and a limiting frame is connected to the outer side of the piston rod in a sleeved mode. The right side of the piston rod is connected with a telescopic rod through a fixing rod, the outer surface of the right side of the connecting rod is sleeved with a fixing ring, and the fixing ring is connected with a spring. The annular limiting block is arranged on the connecting rod, the connecting rod can be prevented from falling off in the using process, threads are arranged on the inserting rod, the piston can be connected to the connecting rod in a threaded mode through the inserting rod, the piston is connected with the connecting rod more firmly and stably, and the piston is prevented from being broken in the using process; according to the utility model, a certain elastic connection can be formed between the piston and the piston rod, so that the connection is more flexible, a certain degree of deviation and vibration can be tolerated, and the reliability and stability of the connection are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of piston rods, and in particular relates to a piston and piston rod connection structure which can prevent an upper piston rod from breaking. Background Art

[0002] The piston rod is a connecting component that supports the piston to do work. It is mostly used in oil cylinders and air cylinder motion actuators. It is a moving component that moves frequently and has high technical requirements. In order to prevent hydraulic oil from leaking from the connection between the two, an O-ring installation groove is often designed at the bare rod end of the piston rod. During actual installation, an O-ring is installed to prevent leakage.

[0003] In the announcement number CN220337186U, a piston and piston rod connection structure for preventing the upper piston rod from breaking includes a piston rod, a rectangular limit cylinder is arranged on the outer wall of the piston rod, one end of the piston rod is the front end of the piston rod, and a piston is fixedly installed at the front end port of the piston rod. In the utility model, by starting the piston rod, the front end of the piston rod can move, so the front end of the piston rod will drive the piston to move, and when the piston moves, it will be able to drive the telescopic rod to move, and when the telescopic rod moves, it will be able to drive the circular mounting plate arranged in the inner cavity of the rectangular limit cylinder to move, and when the circular mounting plate moves, it will be able to move by dragging the sliding mechanism through the movable rod, at this time, the rubber block on the connecting rod will be able to squeeze the piston rod, thereby forming a supporting force, avoiding the situation that the front end of the piston rod breaks or tilts, which is more practical and suitable for wide promotion and use; however, when the above device is used, it cannot absorb the impact and vibration generated by the piston rod during work, cannot reduce the stress on the connecting component, and reduces the service life of the piston rod. Therefore, it is necessary to provide a new piston and piston rod connection structure for preventing the upper piston rod from breaking to solve the above problems. Utility Model Content

[0004] The technical content of the utility model is to provide a new piston and piston rod connecting structure which can prevent the upper piston rod from breaking.

[0005] To solve the above problems, the utility model provides a piston and piston rod connection structure that prevents the upper piston rod from breaking, including a piston rod, a connecting rod fixedly connected to the middle position of the right side of the piston rod, and the other end of the connecting rod is connected to the piston through an insert rod, the outer side of the piston rod is sleeved with a limiting frame, the right side of the piston rod is connected to a telescopic rod through a fixed rod, the right side outer surface of the connecting rod is sleeved with a fixing ring, and a spring is connected to the fixing ring.

[0006] As a further solution of the present invention, an annular limiting block is fixedly connected to the left side of the connecting rod, and a slot matching the annular limiting block is provided inside the piston rod to limit the connecting rod.

[0007] As a further solution of the utility model, threads are evenly distributed on the outer surface of the insertion rod, the insertion rod threads are inserted into the connecting rod, and a threaded slot matching the insertion rod is opened inside the connecting rod so that the connecting rod can be connected to the piston through the insertion rod.

[0008] As a further solution of the utility model, annular rubber blocks are evenly distributed on the outer surface of the piston.

[0009] As a further solution of the present invention, T-shaped limit blocks are evenly distributed on the right outer surface of the piston rod, and a matching T-shaped sliding groove is provided on the inner wall of the limit frame to limit the piston rod.

[0010] As a further solution of the present invention, the fixed rod and the telescopic rod are both arranged in a cross-shaped structure, the telescopic rod is movably inserted in the fixed rod, and a cross-shaped slot matching the telescopic rod is opened inside the fixed rod, and the other end of the telescopic rod is fixedly connected to the piston, and the device can be reinforced by the fixed rod and the telescopic rod.

[0011] As a further solution of the present invention, two groups of the fixing rings are provided, and the fixing rings are made of rubber material. The two groups of the fixing rings are movably sleeved on the outside of the connecting rod to increase the shock absorbing effect of the device.

[0012] As a further solution of the present invention, the two sets of fixing rings are connected at one side close to each other via a spring, and an elastic connection is formed via the spring.

[0013] In summary, the utility model includes at least one of the following beneficial technical effects:

[0014] First, the utility model records a piston and piston rod connection structure that prevents the upper piston rod from breaking. It records that by providing an annular limit block on the connecting rod, the connecting rod can be prevented from falling off during use. By providing threads on the insertion rod, the piston can be threadedly connected to the connecting rod through the insertion rod, so that the piston is more firmly and stably connected to the connecting rod, preventing it from breaking during use.

[0015] Second, the utility model records a piston and piston rod connection structure that prevents the upper piston rod from breaking. It records that a spring and a fixing ring can be provided to play a buffering and shock-absorbing role. When the piston moves, they can absorb and disperse the energy from the movement impact and vibration, thereby reducing the impact and pressure on the piston rod, which helps to extend the service life of the piston rod. By adding a spring and a fixing ring, a certain elastic connection can be formed between the piston and the piston rod, making the connection more flexible, able to tolerate a certain degree of deviation and vibration, and improving the reliability and stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic structural diagram of a piston and piston rod connection structure for preventing an upper piston rod from breaking according to the utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of a piston and piston rod connection structure for preventing the upper piston rod from breaking according to the utility model;

[0019] Figure 3 This is a schematic structural diagram of a piston rod section device of a piston and piston rod connection structure for preventing an upper piston rod from breaking according to the utility model;

[0020] Figure 4 This is a schematic diagram of the exploded structure of the fixed rod and telescopic rod components of a piston and piston rod connection structure for preventing the upper piston rod from breaking according to the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the exploded structure of a fixing ring and a spring component of a piston and piston rod connection structure for preventing an upper piston rod from breaking.

[0022] Figure numerals: 1, piston rod; 2, connecting rod; 3, insertion rod; 4, piston; 5, limit frame; 6, fixing rod; 7, telescopic rod; 8, fixing ring; 9, spring. DETAILED DESCRIPTION

[0023] Please refer to Figure 1-5 A piston and piston rod connection structure for preventing an upper piston rod from breaking comprises a piston rod 1, a connecting rod 2 is fixedly connected to the middle position of the right side of the piston rod 1, and the other end of the connecting rod 2 is connected to a piston 4 via an insert rod 3, a limiting frame 5 is sleeved on the outer side of the piston rod 1, a telescopic rod 7 is connected to the right side of the piston rod 1 via a fixed rod 6, a fixing ring 8 is sleeved on the outer surface of the right side of the connecting rod 2, and a spring 9 is connected to the fixing ring 8.

[0024] An annular limit block is fixedly connected to the left side of the connecting rod 2, and a slot matching the annular limit block is provided inside the piston rod 1. The annular limit block can limit the movement range of the connecting rod 2 inside the piston rod 1, ensuring that the connecting rod 2 can only move within the specified range inside the piston rod 1. This limiting function can prevent the connecting rod 2 from exceeding the safety range, avoid unnecessary damage or failure, and protect the safety of equipment and operators. By limiting the movement range of the connecting rod 2, the stability and reliability between the piston rod 1 and the connecting rod 2 can be improved. When the piston 4 moves, the connecting rod 2 is limited by the annular limit block and will not move excessively or shake, ensuring the stable operation of the piston system;

[0025] The outer surface of the plug rod 3 is evenly distributed with threads, and the plug rod 3 is threadedly inserted into the connecting rod 2, and the interior of the connecting rod 2 is provided with a threaded slot that matches the plug rod 3. Through the threaded connection, a firm connection is formed between the plug rod 3 and the connecting rod 2. The threaded slot can ensure that the threads between the plug rod 3 and the connecting rod 2 are tightly engaged, preventing loosening or falling off during connection, thereby improving the stability and reliability of the connection. Since the connection between the threaded plug rod 3 and the connecting rod 2 is detachable, the connection can be easily disassembled when necessary, which is convenient for maintenance, replacement or adjustment. This design can simplify the maintenance and repair process of the equipment, save time and labor costs, and the design of the threaded slot makes the connection between the plug rod 3 and the connecting rod 2 have certain flexibility and adjustability. By adjusting the insertion depth or replacing plug rods 3 and connecting rods 2 of different specifications, the connection requirements under different needs can be met, thereby improving the flexibility and adaptability of the system.

[0026] The outer surface of the piston 4 is evenly distributed with annular rubber blocks. The annular blocks made of rubber material can provide better sealing performance. When the piston 4 moves, the annular rubber blocks can be in close contact with the sealing surface to prevent liquid or gas leakage and ensure the sealing performance of the system. The annular rubber blocks have good elasticity and shock absorption performance, which can absorb the vibration and impact force generated when the piston 4 moves, reduce the vibration and noise of the system, and improve the running stability and operating comfort of the equipment. The annular rubber blocks can be used as a protective layer to prevent the surface of the piston 4 from chemical corrosion or physical damage, thereby extending the service life of the piston 4 and reducing the frequency and cost of maintenance and replacement;

[0027] T-shaped limit blocks are evenly distributed on the right outer surface of the piston rod 1, and a T-shaped slide groove matching it is opened on the inner wall of the limit frame 5. The design of the T-shaped limit block and the slide groove can effectively prevent the piston rod 1 from unnecessary rotation or twisting during operation, maintain the stability and reliability of the piston rod 1, and ensure the normal operation of the equipment. Through precise positioning and preventing rotation, the T-shaped limit block and the slide groove design can improve the safety of equipment operation and reduce safety hazards caused by abnormal position or rotation of the piston rod 1.

[0028] The fixed rod 6 and the telescopic rod 7 are both arranged in a cross-shaped structure. The telescopic rod 7 is movably inserted in the fixed rod 6, and a cross-shaped slot matching the telescopic rod 7 is opened inside the fixed rod 6. The other end of the telescopic rod 7 is fixedly connected to the piston 4. The cross-shaped structure of the fixed rod 6 and the telescopic rod 7 provides stronger support and stability, making the movement of the piston 4 smoother and reducing the possibility of failure and damage caused by vibration or instability. The cross-shaped slot and insertion design can ensure that the telescopic rod 7 is firmly connected to the fixed rod 6, avoiding loosening or falling off during operation, thereby improving the reliability and stability of the system. The cross-shaped structure can provide a larger connection area, so that the fixed rod 6 and the telescopic rod 7 can withstand greater tensile or compressive forces, increasing the bearing capacity and durability of the system, and the cross-shaped slot and insertion design can reduce the friction between the connecting parts, making the movement of the piston 4 smoother, reducing energy loss, and improving the efficiency of the system.

[0029] There are two groups of fixing rings 8, which are made of rubber material. The two groups of fixing rings 8 are movably sleeved on the outside of the connecting rod 2, and the two groups of fixing rings 8 are connected to each other on one side by a spring 9. The rubber fixing rings 8 can provide good shock absorption and buffering effects. When the connecting rod 2 moves, the fixing rings 8 can absorb part of the vibration and impact force, reduce the vibration transmitted to other components, and protect the stability and durability of the entire system. The spring 9 connection design enables the fixing rings 8 to adapt to movement and deformation within a certain range, thereby improving the adaptability and flexibility of the system, and is suitable for various working conditions and environmental requirements.

[0030] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A piston-piston rod connection structure for preventing an upper piston rod from breaking, comprising a piston rod (1), characterized in that: A connecting rod (2) is fixedly connected to the middle position of the right side of the piston rod (1), and the other end of the connecting rod (2) is connected to the piston (4) via an insert rod (3). The outer side of the piston rod (1) is sleeved with a limit frame (5), and the right side of the piston rod (1) is connected to a telescopic rod (7) via a fixed rod (6). A fixing ring (8) is sleeved on the outer surface of the right side of the connecting rod (2), and a spring (9) is connected to the fixing ring (8).

2. A piston-piston rod connection structure for preventing the upper piston rod from breaking according to claim 1, characterized in that: An annular limiting block is fixedly connected to the left side of the connecting rod (2), and a slot matching the annular limiting block is provided inside the piston rod (1).

3. A piston-piston rod connection structure for preventing the upper piston rod from breaking according to claim 1, characterized in that: The outer surface of the insertion rod (3) is evenly distributed with threads, the insertion rod (3) is threadedly inserted into the connecting rod (2), and the interior of the connecting rod (2) is provided with a threaded slot that matches the insertion rod (3).

4. A piston-piston rod connection structure for preventing the upper piston rod from breaking according to claim 1, characterized in that: Annular rubber blocks are evenly distributed on the outer surface of the piston (4).

5. The piston-piston rod connection structure for preventing the upper piston rod from breaking according to claim 1, characterized in that: T-shaped limit blocks are evenly distributed on the right outer surface of the piston rod (1), and a T-shaped sliding groove matching the limit blocks is provided on the inner wall of the limit frame (5).

6. The piston-piston rod connection structure for preventing the upper piston rod from breaking according to claim 1, characterized in that: The fixed rod (6) and the telescopic rod (7) are both arranged in a cross-shaped structure. The telescopic rod (7) is movably inserted into the fixed rod (6), and a cross-shaped slot matching the telescopic rod (7) is provided inside the fixed rod (6). The other end of the telescopic rod (7) is fixedly connected to the piston (4).

7. A piston-piston rod connection structure for preventing the upper piston rod from breaking according to claim 1, characterized in that: There are two groups of the fixing rings (8) in total. The fixing rings (8) are made of rubber material. The two groups of the fixing rings (8) are movably sleeved on the outside of the connecting rod (2).

8. The piston-piston rod connection structure for preventing the upper piston rod from breaking according to claim 1, characterized in that: The two sets of fixing rings (8) are connected at their mutually adjacent sides via a spring (9).

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