An assembled piston rod

Abstract

The utility model relates to the technical field of piston rod, specifically disclose a kind of assembled piston rod, including cylinder barrel, the end surface of cylinder barrel is provided with connector, and the inside of cylinder barrel is inserted with stem, the inside of connector is provided with dirt removal sealing element, for realizing the sealed connection between piston rod and external component;It further includes mounting and fixed ring, mounting is set in the inside of connector, dirt removal sealing element is engaged in the inner wall of mounting, for realizing the stable installation of dirt removal sealing element, the outer wall of mounting is fixed with fixed ring, for the limiting of mounting, prevent it from loosening or falling off in use process, when dirt removal sealing element is scraped and cleaned to stem surface, part of stain can be left in the gap between dirt removal sealing element and mounting inner wall, by disassembling mounting assembly, mounting can be taken out in whole, thoroughly cleaned, prevent from affecting sealing performance or leading to piston rod operation not smooth due to stain accumulation.

Description

Technical Field

[0001] This utility model relates to the field of piston rod technology, specifically an assembled piston rod. Background Technology

[0002] The piston rod includes the rod body, piston end, crank end, and locking device. The rod body is the main component of the piston rod and is usually made of high-strength steel or alloy materials. Its main function is to withstand the pressure from the piston and transmit it to the crankshaft. The piston end is located at one end of the rod body and is directly connected to the piston. When the piston rod reciprocates, the cleaning seal (usually a rubber scraper ring) adheres tightly to the surface of the rod, using its inner edge or lip structure to scrape off the dirt adhering to the rod. The scraped dirt is transferred and temporarily stored in a specific area. Some dirt falls off due to vibration or tilting, while most dirt requires regular manual cleaning. However, due to the complex structure of the seal, especially in areas with small gaps, it is difficult to completely remove all dirt by simple wiping or rinsing. Residual dirt may re-adhere to the piston rod, continuing to affect the sealing performance. Therefore, we propose an assembled piston rod. Utility Model Content

[0003] The purpose of this invention is to provide an assembled piston rod to solve the problem mentioned in the background art that, due to the complex structure of the sealing component, especially in areas with small gaps, it is difficult to completely remove all stains by simple wiping or rinsing, and the residual stains may re-adhere to the piston rod, continuing to affect the sealing performance.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an assembled piston rod, including a cylinder, a connector is provided on the end face of the cylinder, and a rod is inserted inside the cylinder. A decontamination sealing element is provided inside the connector to achieve a sealed connection between the piston rod and external components. It also includes an installation component and a retaining ring. The installation component is located inside the connector, and the cleaning seal is engaged in the inner wall of the installation component to achieve stable installation of the cleaning seal. The outer wall of the installation component is fixed with a retaining ring to limit the installation component and prevent it from loosening or falling off during use. The mounting component, located at the bottom of the retaining ring, limits and secures the retaining ring, thereby enabling the installation and removal of the mounting part. When the decontamination seal is severely contaminated due to oil, carbon deposits, or other reasons, the mounting component can be removed by disassembling the mounting component for easy cleaning or replacement, improving maintenance convenience and sealing performance. Rubber retaining rings are installed on the inner wall of the connector, with one end engaging inside the dirt-removing seal. This ensures the seal is properly installed, preventing leakage during operation and improving the sealing and stability of the connection.

[0005] The retaining ring is located on the outer ring of the mounting component and is distributed around the outer wall of the mounting component to enhance the connection stability between the mounting component and the connector.

[0006] The retaining ring has a locking block fixed on the side near the connector. The locking block is designed with a hexagonal structure. The connector has a slot inside that mates with the locking block. This is used to achieve positioning and installation between the retaining ring and the connector, thereby improving assembly accuracy and structural stability.

[0007] The mounting assembly includes a movable plate that fits against the surface of the fixed ring. An insert plate is fixed to the end face of the movable plate. The insert plate is inserted into the interior of the fixed ring. A limiting groove that mates with the insert plate is provided inside the fixed ring to achieve axial limiting of the mounting assembly on the fixed ring, thereby completing the installation or disassembly of the mounting component.

[0008] The movable plate has a screw installed on its surface via a rotatable connection. The outer wall of the screw is connected to the fixed plate via a threaded fit. The fixed plate is fixedly installed on the surface of the connector.

[0009] The screw has an internal mounting groove designed as a pentagon to facilitate disassembly and assembly using specialized tools, thereby improving assembly efficiency and ease of operation.

[0010] The side of the cleaning seal furthest from the rod is designed with an arc shape to reduce stress concentration and improve sealing performance. A rubber retaining ring is glued to the outer wall of the cleaning seal, and a slot is provided inside the mounting component to mate with the rubber retaining ring, thus achieving a sealed connection between the cleaning seal and the mounting component.

[0011] The rubber retaining ring is engaged inside the cleaning seal, and the cleaning seal has a slot 2 inside that mates with the rubber retaining ring to achieve a secure installation of the rubber retaining ring, thereby enhancing the sealing performance and connection strength between the connector and the cleaning seal.

[0012] This utility model has at least the following beneficial effects: When the cleaning seal is used to scrape and clean the surface of the rod, some dirt may remain in the gap between the cleaning seal and the inner wall of the mounting component. By disassembling the mounting assembly, the mounting component can be removed as a whole for thorough cleaning, preventing dirt accumulation from affecting the sealing performance or causing the piston rod to run sluggishly. The mounting component and the retaining ring cooperate to achieve stable installation and quick disassembly of the cleaning seal, facilitating regular cleaning or replacement and avoiding sealing failure due to aging or contamination of the cleaning seal. The mounting assembly uses a rotating screw to insert and remove the insert plate, completing the quick locking or releasing of the mounting component. Through the cooperation of the cleaning seal, rubber retaining ring, and rubber retaining ring, a double sealing protection is formed, effectively preventing hydraulic oil or gas from leaking from the connection point and significantly improving the sealing performance of the piston rod. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a partial structural schematic diagram of the dirt-removing sealing component and the fixing ring of this utility model; Figure 3 This is a partial structural schematic diagram of the rod and mounting components of this utility model; Figure 4 This is a partial structural diagram of the connector and fixing ring of this utility model; Figure 5 This is a partial structural diagram of the fixing ring and the locking block of this utility model; Figure 6 This is a partial structural diagram of the mounting component of this utility model; Figure 7 for Figure 4 Enlarged schematic diagram of region A in the middle.

[0014] In the diagram: 11. Cylinder; 12. Connector; 13. Rod; 14. Stain removal seal; 21. Mounting component; 22. Retaining ring; 23. Clamping block; 3. Mounting assembly; 31. Moving plate; 32. Insert plate; 33. Screw; 34. Fixing plate; 41. Rubber retaining ring; 42. Rubber retaining ring. Detailed Implementation

[0015] 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.

[0016] Example 1 Please see Figures 1 to 6The present invention provides a technical solution: an assembled piston rod, including a cylinder 11, a connector 12 is provided on the end face of the cylinder 11, and a rod body 13 is inserted inside the cylinder 11. A decontamination sealing element 14 is provided inside the connector 12 to achieve a sealed connection between the piston rod and external components. It also includes an installation component 21 and a retaining ring 22. The installation component 21 is located inside the connector 12. The dirt-removing seal 14 is engaged in the inner wall of the installation component 21 to achieve stable installation of the dirt-removing seal 14. The outer wall of the installation component 21 is fixed with a retaining ring 22 to limit the installation component 21 and prevent it from loosening or falling off during use. Mounting component 3 is located at the bottom of the fixing ring 22. Mounting component 3 limits and fixes the fixing ring 22, thereby realizing the installation and disassembly of mounting component 21. When the cleaning seal 14 is seriously contaminated by oil, carbon deposits, etc., the mounting component 21 can be removed by disassembling mounting component 3 for easy cleaning or replacement, which improves maintenance convenience and sealing performance. The design of mounting component 3 realizes the quick disassembly and assembly function of cleaning seal 14 and mounting component 21, which facilitates regular cleaning or replacement of cleaning seal 14, avoids leakage problems caused by contamination or aging of cleaning seal 14, extends the service life of piston rod, and improves maintenance efficiency. A rubber retaining ring 42 is disposed on the inner wall of the connector 12, with one end engaging inside the dirt-removing seal 14. This is used to achieve a sealed installation of the dirt-removing seal 14, preventing leakage during operation and improving the sealing performance and stability of the connection. The elastic structure of the rubber retaining ring 42 allows it to fit tightly against the dirt-removing seal 14, forming a double seal protection to prevent hydraulic oil or gas from leaking from the connection, significantly improving the sealing performance and operational stability of the piston rod.

[0017] The retaining ring 22 is disposed on the outer ring of the mounting part 21 and distributed around the outer wall of the mounting part 21 to enhance the connection stability between the mounting part 21 and the connector 12.

[0018] A locking block 23 is fixed to the side of the fixing ring 22 near the connector 12. The locking block 23 is designed as a hexagonal structure. The connector 12 has a slot inside that mates with the locking block 23. The mating structure of the hexagonal locking block 23 and the slot enables precise positioning and installation between the fixing ring 22 and the connector 12, avoiding rotation or misalignment during assembly, and improving assembly efficiency and structural stability.

[0019] The mounting component 3 includes a movable plate 31 that fits against the surface of the fixed ring 22. An insert plate 32 is fixed to the end face of the movable plate 31. The insert plate 32 is inserted into the interior of the fixed ring 22. The interior of the fixed ring 22 has a limiting groove that mates with the insert plate 32. The mating structure between the insert plate 32 and the limiting groove enables the mounting component 3 to limit the fixed ring 22, ensuring that the mounting component 21 will not loosen or fall off during operation. It also supports quick disassembly, making it easy to maintain and replace.

[0020] A screw 33 is mounted on the surface of the movable plate 31 via a rotatable connection. The outer wall of the screw 33 is connected to the fixed plate 34 via a threaded engagement. The fixed plate 34 is fixedly mounted on the surface of the connector 12. The threaded engagement structure between the screw 33 and the fixed plate 34 enables the installation assembly 3 to have good adjustment function. The operator can insert and remove the insert plate 32 by rotating the screw 33, and quickly lock or release the installation component 21, thereby improving the ease of operation and assembly efficiency.

[0021] The screw 33 has an internal mounting groove with a pentagonal structure, which facilitates disassembly and assembly using special tools, improving assembly efficiency and ease of operation. The pentagonal mounting groove design improves the fit accuracy between the screw 33 and the special tool, avoids slippage, and enhances disassembly and assembly efficiency and operational safety.

[0022] When the cleaning seal 14 scrapes and cleans the surface of the rod 13, some dirt may remain in the gap between the cleaning seal 14 and the inner wall of the mounting part 21. In order to facilitate the cleaning of these residual dirt, it is necessary to disassemble the cleaning seal 14 and the mounting part 21. The specific steps are as follows: First, insert a special tool into the mounting slot inside the screw 33 and rotate the screw 33. Since the screw 33 and the fixing plate 34 are connected by a threaded fit, rotating the screw 33 will drive the moving plate 31 to move axially toward the fixing plate 34. The moving plate 31 will drive the insert plate 32 fixed on its end face to move synchronously until the insert plate 32 is completely removed from the limiting groove inside the fixing ring 22, thereby releasing the limiting of the fixing ring 22.

[0023] Subsequently, the retaining ring 22, together with the mounting piece 21, is pulled away from the connector 12. At this time, the locking block 23 (designed as a hexagonal structure) on the retaining ring 22 will be removed from the slot inside the connector 12, thereby separating the mounting piece 21 from the connector 12 and completing the disassembly operation of the mounting piece 21.

[0024] After the mounting component 21 is disassembled, the residual dirt between the inner wall of the connector 12, the outer wall of the dirt-removing seal 14, and the inner wall of the mounting component 21 can be thoroughly cleaned to prevent problems such as decreased sealing performance or poor piston rod operation caused by dirt accumulation.

[0025] After cleaning, reinstall the mounting parts 21 in reverse order, and re-insert the insert plate 32 into the limiting groove by rotating the screw 33 to restore the limiting fixation of the fixing ring 22, thereby completing the entire cleaning and maintenance operation.

[0026] Example 2 Please see Figure 7 The side of the cleaning seal 14 away from the rod 13 is set with an arc structure to facilitate the guidance of the dirt after the surface of the rod 13 is scraped off. The outer wall of the cleaning seal 14 is fixed with a rubber retaining ring 41 by adhesive. The inside of the mounting part 21 is provided with a slot that mates with the rubber retaining ring 41.

[0027] The rubber retaining ring 42 is engaged inside the dirt-removing seal 14. The dirt-removing seal 14 has a slot 2 that mates with the rubber retaining ring 42, which is used to achieve a stable installation of the rubber retaining ring 42, thereby enhancing the sealing performance and connection strength between the connector 12 and the dirt-removing seal 14.

[0028] 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.

[0029] 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. An assembled piston rod, comprising a cylinder, wherein a connector is provided on the end face of the cylinder, and a rod body is inserted inside the cylinder, wherein a decontamination seal is provided inside the connector for achieving a sealed connection between the piston rod and external components; characterized in that Also includes: Mounting component and retaining ring: The mounting component is located inside the connector, the cleaning and sealing component is engaged in the inner wall of the mounting component, and a retaining ring is fixed to the outer wall of the mounting component; The mounting component is located at the bottom of the fixing ring. The mounting component limits and fixes the fixing ring, thereby realizing the installation and disassembly of the mounting part. When the decontamination seal is severely contaminated due to oil, carbon deposits, etc., the mounting component can be removed and cleaned by disassembling the mounting component. A rubber retaining ring is provided on the inner wall of the connector, with one end engaging inside the dirt-removing seal to achieve a sealing installation of the dirt-removing seal.

2. The assembled piston rod of claim 1, wherein: The retaining ring is disposed on the outer ring of the mounting component, surrounding the outer wall of the mounting component.

3. The assembled piston rod of claim 1, wherein: A locking block is fixed to the side of the fixing ring near the connector. The locking block is designed with a hexagonal structure, and the connector has a slot inside that mates with the locking block.

4. The assembled piston rod of claim 1, wherein: The mounting assembly includes a movable plate that fits onto the surface of a fixed ring. An insert plate is fixed to the end face of the movable plate. The insert plate is inserted into the interior of the fixed ring. A limiting groove that mates with the insert plate is provided inside the fixed ring.

5. The assembled piston rod of claim 4, wherein: The surface of the movable plate is fitted with a screw via a rotatable connection. The outer wall of the screw is connected to the fixed plate via a threaded fit. The fixed plate is fixedly installed on the surface of the connector.

6. The assembled piston rod of claim 5, wherein: The screw has an internal mounting groove, which is designed as a pentagonal structure.

7. The assembled piston rod of claim 1, wherein: The side of the decontamination seal away from the rod is set with an arc-shaped structure. The outer wall of the decontamination seal is fixed with a rubber retaining ring by adhesive. The interior of the mounting component has a slot that mates with the rubber retaining ring.

8. The assembled piston rod of claim 1, wherein: The rubber retaining ring engages inside the cleaning seal, and the cleaning seal has a slot 2 inside that mates with the rubber retaining ring.

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