A piston rod support guide structure

Abstract

The utility model relates to a guide structure technical field discloses a piston rod support guide structure, including base, the top fixedly connected with cylinder barrel of base, the top fixedly connected with fixed base of cylinder barrel, the inside of fixed base is provided with dismounting structure, the dismounting structure includes two extrusion grooves, the inside of extrusion groove is located in fixed base, the inside of extrusion groove is provided with extrusion spring, one end of extrusion spring is fixedly connected with fixed base, the other end of extrusion spring is fixedly connected with limit ring, the inboard fixedly connected with the clamping rod of limit ring, the top of fixed base is provided with dust cover, both sides of dust cover all are provided with the clamping groove, the clamping rod is connected with the clamping groove and is clamped, in the utility model, set up dismounting structure, pull the clamping rod and make it separate the clamping groove of dust cover both sides to the dust cover is unlocked and is taken down to simple operation, it is convenient to install and replace, shortens the dust cover replacement time, improves maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of guide structure technology, and in particular to a piston rod support guide structure. Background Technology

[0002] A piston rod support and guide structure is a combination of components used in hydraulic cylinders, pneumatic cylinders, and other equipment to support and guide the piston rod. The main function of this structure is to prevent the piston rod from swinging or deviating during movement, ensuring the stability and accuracy of its movement, while reducing friction and wear between the piston rod and the cylinder body, thus extending the service life of the equipment.

[0003] In existing piston rod support and guide structures, the piston or piston rod is prone to contact and friction with the cylinder during operation, causing equipment wear, reducing the lifespan of the device, and resulting in high costs. Furthermore, long-term use of the piston rod can easily lead to dust intrusion into the guide sleeve, exacerbating piston rod wear.

[0004] Therefore, those skilled in the art have provided a piston rod support and guide structure to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a piston rod support guide structure with a disassembly structure, which allows for quick replacement of the dust cover, prevents dust from entering the guide sleeve, reduces equipment wear, improves maintenance efficiency, and extends the service life of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A piston rod support and guide structure includes a base, a cylinder is fixedly connected to the top of the base, a fixed seat is fixedly connected to the top of the cylinder, and a disassembly structure is provided inside the fixed seat. The disassembly structure includes two compression grooves located inside the fixed base. A compression spring is installed inside the compression groove. One end of the compression spring is fixedly connected to the fixed base, and the other end of the compression spring is fixedly connected to a limit ring. A locking rod is fixedly connected to the inner side of the limit ring. A dust cover is installed on the top of the fixed base. Both sides of the dust cover are provided with locking grooves, and the locking rod engages with the locking grooves. By using the above technical solution, a disassembly structure is set up, and the lever is pulled to disengage it from the slot, so as to realize the quick disassembly of the dust cover, improve the efficiency of dust cover replacement, and ensure timely restoration of dust protection.

[0007] Furthermore, a piston slides inside the cylinder, and a piston rod is fixedly connected to the top of the piston, with the piston rod being connected through a fixed seat; The above technical solution involves setting up a cylinder to provide a sliding cavity for the piston. The piston can reciprocate within the cylinder and drive the piston rod to move synchronously. The fixed seat guides the piston rod, ensuring the stability of the piston rod's movement direction and preventing friction between the piston rod and the inner wall of the cylinder due to piston rod deviation, thereby reducing equipment wear.

[0008] Furthermore, a piston ring is fitted onto the outside of the piston; By using the above technical solution, piston rings can fill the gap between the piston and the inner wall of the cylinder, enhance the sealing performance between the two, prevent hydraulic oil or compressed air from leaking from both sides of the piston, and at the same time, piston rings can reduce the direct contact between the piston and the cylinder, converting sliding friction into local friction of the piston rings, reducing wear on the inner wall of the cylinder, and extending the service life of the cylinder.

[0009] Furthermore, four support rods are fixedly connected to the top of the base, and the end of each support rod away from the base is fixedly connected to a fixed seat. By using the above technical solution, four support rods can provide stable support for the fixed seat, offset the radial impact force generated by the reciprocating motion of the piston rod, prevent the fixed seat from deviating from the coaxiality of the piston rod due to force offset, ensure the motion accuracy of the piston rod, and reduce off-center load friction.

[0010] Furthermore, the top of the fixing base is provided with an annular groove, which engages with the dust cover, and the dust cover is made of silicone rubber; The above technical solution, by setting an annular groove, can play a preliminary positioning role for the dust cover, ensuring that the dust cover is accurately aligned with the fixed seat during installation, avoiding displacement that would cause dust cover failure. The dust cover made of silicone rubber has good elasticity and sealing performance, and can fit tightly against the piston rod surface, effectively preventing dust and sand from entering the guide sleeve. At the same time, silicone rubber is wear-resistant and aging-resistant, meeting the long-term use requirements of the equipment.

[0011] Furthermore, the interior of the fixing base is provided with a guide sleeve and a sealing sleeve; The above technical solution involves setting a guide sleeve, which can directly contact and guide the piston rod, reducing direct friction between the piston rod and the fixed seat. The sealing sleeve, located below the guide sleeve, further enhances the sealing between the piston rod and the fixed seat, preventing hydraulic oil leakage or external impurities from entering the cylinder, thus ensuring the stability of equipment operation.

[0012] Furthermore, a flange is provided on the top of the fixing seat, and four mounting holes are provided inside both the fixing seat and the flange; By using the above technical solution and installing a flange, the stability of the internal structure of the fixed seat can be enhanced, and the guide accuracy can be reduced due to the loosening of the fixed seat during equipment operation.

[0013] Furthermore, the base has four fixing holes inside; By using the above technical solution, four fixing holes are provided, which can be used to fix the base to the equipment frame or the ground with expansion bolts or anchor bolts. This ensures that the entire piston rod support and guide structure is firmly installed, avoids the misalignment of the cylinder and piston rod caused by the displacement of the base during equipment operation, and ensures the overall stability of the structure during operation.

[0014] This utility model has the following beneficial effects: 1. This utility model proposes a piston rod support and guide structure. By setting a disassembly structure, the dust cover is initially positioned using an annular groove. Then, under the force of a compression spring, a locking rod is pushed into the locking groove, quickly fixing the dust cover to the fixed base. Pulling the locking rod disengages it from the locking grooves on both sides of the dust cover, thereby unlocking and removing the dust cover. The operation is simple, easy to install and replace, shortens the dust cover replacement time, and improves maintenance efficiency. The dust cover is made of silicone rubber material, which can fit tightly with the sliding end of the piston rod, ensuring uninterrupted dust protection, effectively preventing dust from entering the guide sleeve, reducing friction and wear between the piston rod and the guide sleeve, and extending the service life of the equipment.

[0015] 2. This utility model proposes a piston rod support and guide structure. By setting a piston inside the cylinder and fitting a piston ring around the piston, the sealing between the piston and the inner wall of the cylinder can be enhanced, preventing leakage of hydraulic oil or compressed air. Simultaneously, it reduces direct friction between the piston and the cylinder, lowering equipment wear. Four support rods fixed to the top of the base connect to the fixed seat, providing stable support and preventing the fixed seat from shifting due to the impact force generated by the reciprocating motion of the piston rod. This ensures the coaxiality of the piston rod movement and reduces eccentric friction between the piston rod and the guide sleeve. Bolts are used to fix the fixed seat using the flange on top and the internal mounting holes, enhancing the stability of the internal structure. The fixing holes inside the base allow for quick mounting of the device to the equipment frame, improving installation stability. The guide sleeve and sealing sleeve inside the fixed seat guide and seal the piston rod, preventing piston rod swaying and shifting, reducing wear, lowering equipment maintenance costs, and ensuring long-term stable operation of the equipment. Attached Figure Description

[0016] Figure 1 This is a perspective view of a piston rod support and guide structure proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of a piston rod support and guide structure proposed in this utility model; Figure 3 This is a sectional view of the disassembled structure of a piston rod support and guide structure proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is an exploded view of the fixed seat of a piston rod support and guide structure proposed in this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Base; 2. Cylinder; 3. Fixing seat; 4. Support rod; 5. Disassembly structure; 501. Extrusion groove; 502. Extrusion spring; 503. Limiting ring; 504. Locking rod; 6. Piston rod; 7. Piston; 8. Piston ring; 9. Dust cover; 10. Fixing hole; 11. Locking groove; 12. Flange; 13. Mounting hole; 14. Guide sleeve; 15. Sealing sleeve; 16. Annular groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides a specific implementation method: A piston rod support and guide structure includes a base 1, a cylinder 2 fixedly connected to the top of the base 1, and a fixed seat 3 fixedly connected to the top of the cylinder 2. The fixed seat 3 has a disassembly structure 5 inside, which includes two compression grooves 501 located inside the fixed seat 3. A compression spring 502 is installed inside each compression groove 501, with one end fixedly connected to the fixed seat 3 and the other end fixedly connected to a limit ring 503. A locking rod 504 is fixedly connected to the inner side of the limit ring 503. A dust cover 9 is provided on the top of the fixed seat 3, and locking grooves 11 are provided on both sides of the dust cover 9. The locking rod 504 engages with the locking grooves 11. The disassembly structure 5 is set up so that the locking rod 504 can be pulled to disengage it from the locking groove 11, thereby realizing the quick disassembly of the dust cover 9, improving the replacement efficiency of the dust cover 9, and ensuring timely restoration of dust protection. The top of the fixed base 3 is provided with an annular groove 16, which engages with the dust cover 9. The dust cover 9 is made of silicone rubber. The annular groove 16 can play a preliminary positioning role for the dust cover 9, ensuring that the dust cover 9 is accurately aligned with the fixed base 3 during installation, and avoiding displacement that would cause dust protection failure. The silicone rubber dust cover 9 has good elasticity and sealing performance, and can fit tightly against the surface of the piston rod 6, effectively preventing dust and sand from entering the guide sleeve 14. At the same time, silicone rubber is wear-resistant and aging-resistant, and can meet the long-term use requirements of the equipment.

[0020] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 A piston 7 slides inside the cylinder 2, and a piston rod 6 is fixedly connected to the top of the piston 7. The piston rod 6 is connected to the fixed seat 3. The cylinder 2 provides a sliding cavity for the piston 7, allowing the piston 7 to reciprocate within the cylinder 2 and drive the piston rod 6 to move synchronously. The fixed seat 3 guides the piston rod 6, ensuring stable movement and preventing friction between the piston rod 6 and the inner wall of the cylinder 2 due to deviation, thus reducing equipment wear. A piston ring 8 is fitted onto the outside of the piston 7. The piston ring 8 fills the gap between the piston 7 and the inner wall of the cylinder 2, enhancing their sealing. The piston rings 8 provide sealing to prevent hydraulic oil or compressed air from leaking from both sides of the piston 7. Simultaneously, the piston rings 8 reduce direct contact between the piston 7 and the cylinder 2, converting sliding friction into localized friction on the piston rings 8, reducing wear on the inner wall of the cylinder 2, and extending the service life of the cylinder 2. Four support rods 4 are fixedly connected to the top of the base 1. The end of each support rod 4 away from the base 1 is fixedly connected to the fixed seat 3. The four support rods 4 provide stable support for the fixed seat 3, counteracting the radial impact force generated by the reciprocating motion of the piston rod 6, and preventing the fixed seat 3 from becoming coaxial with the piston rod 6 due to force displacement. To minimize deviation and ensure the movement accuracy of the piston rod 6, and reduce off-center friction, the fixed seat 3 is internally equipped with a guide sleeve 14 and a sealing sleeve 15. The guide sleeve 14 directly contacts and guides the piston rod 6, reducing direct friction between the piston rod 6 and the fixed seat 3. The sealing sleeve 15, located below the guide sleeve 14, further enhances the sealing between the piston rod 6 and the fixed seat 3, preventing hydraulic oil leakage or external impurities from entering the cylinder 2, thus ensuring equipment operational stability. A flange 12 is installed on the top of the fixed seat 3. The flange 12 has four mounting holes 13 inside, which enhances the stability of the internal structure of the fixed base 3 and prevents the fixed base 3 from loosening during equipment operation, thus reducing the guiding accuracy. The base 1 has four fixing holes 10 inside, which can be used to fix the base 1 to the equipment frame or the ground with expansion bolts or anchor bolts, ensuring that the entire piston rod support and guide structure is firmly installed and preventing the cylinder 2 and piston rod 6 from deviating due to the displacement of the base 1 during equipment operation, thus ensuring the overall stability of the structure during operation.

[0021] Working principle: When this piston rod support and guide structure is in operation, it is first fixed to the equipment frame with bolts through the fixing holes 10 of the base 1. The four support rods 4 on the base 1 support the fixed seat 3 to ensure coaxiality. When the equipment is running, the piston 7 in the cylinder 2 reciprocates under hydraulic or pneumatic pressure, driving the piston rod 6 to move synchronously. The piston ring 8 fills the gap between the piston 7 and the cylinder 2 to prevent medium leakage. The guide sleeve 14 in the fixed seat 3 guides the piston rod 6 to move stably and avoid offset friction. The sealing sleeve 15 enhances the sealing between the piston rod 6 and the fixed seat 3. The flange is used to... 12 and bolts secure the internal structure of the fixed base 3. The silicone rubber dust cover 9 is initially positioned by the annular groove 16. At this time, the clamping rod 504 is engaged and fixed with the groove 11 under the force of the compression spring 502, so that the dust cover 9 is fixedly connected to the fixed base 3, preventing dust from entering the guide sleeve 14. When the dust cover 9 is worn and needs to be replaced, pull the clamping rod 504 to disengage it from the groove 11, and the dust cover 9 can be unlocked and replaced, ensuring continuous dust protection. The overall structure achieves precise guidance of the piston rod 6 and reduces wear through the cooperation of various components, ensuring stable operation of the equipment.

[0022] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0023] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A piston rod support and guide arrangement comprising a base (1), characterized in that: A cylinder (2) is fixedly connected to the top of the base (1), and a fixed seat (3) is fixedly connected to the top of the cylinder (2). A disassembly structure (5) is provided inside the fixed seat (3). The disassembly structure (5) includes two compression grooves (501). The compression grooves (501) are located inside the fixed base (3). A compression spring (502) is provided inside the compression grooves (501). One end of the compression spring (502) is fixedly connected to the fixed base (3). The other end of the compression spring (502) is fixedly connected to a limit ring (503). A locking rod (504) is fixedly connected to the inner side of the limit ring (503). A dust cover (9) is provided on the top of the fixed base (3). A locking groove (11) is provided on both sides of the dust cover (9). The locking rod (504) is engaged with the locking groove (11).

2. A piston rod support and guide arrangement according to claim 1, characterized in that: A piston (7) slides inside the cylinder (2), and a piston rod (6) is fixedly connected to the top of the piston (7). The piston rod (6) is connected to the fixed seat (3).

3. A piston rod support and guide arrangement according to claim 2, characterized in that: The piston (7) is fitted with piston rings (8).

4. A piston rod support and guide arrangement according to claim 1, characterized in that: Four support rods (4) are fixedly connected to the top of the base (1), and the end of the support rod (4) away from the base (1) is fixedly connected to the fixed seat (3).

5. A piston rod support and guide arrangement according to claim 1, characterized in that: The top of the fixing base (3) is provided with an annular groove (16), which engages with the dust cover (9), and the material of the dust cover (9) is silicone rubber.

6. A piston rod support and guide arrangement according to claim 1, characterized in that: The fixed base (3) is provided with a guide sleeve (14) and a sealing sleeve (15).

7. A piston rod support and guide arrangement according to claim 1, characterized in that: The top of the fixed seat (3) is provided with a flange (12), and both the fixed seat (3) and the flange (12) are provided with four mounting holes (13).

8. A piston rod support and guide arrangement according to claim 1, characterized in that: The base (1) has four fixing holes (10) inside.

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