Gas spring damping hydraulic rod

Abstract

The utility model relates to the field of gas spring damping hydraulic rods, and discloses a gas spring damping hydraulic rod which comprises an outer barrel body, an inner oil barrel is fixedly connected to the interior of the outer barrel body, a push-pull rod is slidably connected to the interior of the outer barrel body, and a push-pull disc is fixedly connected to the bottom end of the push-pull rod. The bottom end of the push-pull disc is fixedly connected with a sealing rubber pad, an oil outlet groove opening is formed in the middle of the bottom end of the inner oil cylinder, the bottom end of the inner oil cylinder is evenly and fixedly connected with a plurality of supporting rods, the lower side of the outer portion of the inner oil cylinder is fixedly connected with a limiting ring, and a liquid blocking traction assembly is installed in the limiting ring. According to the utility model, the internal oil-gas mixture is prevented from overflowing towards the outer side along with the movement of the push rod, the quantity of the internal oil-gas mixture is ensured, the operation is more stable, the damage to the outer wall caused by overlarge internal pressure is avoided, and the use safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of gas spring damping hydraulic rods, in particular to a gas spring damping hydraulic rod. Background Art

[0002] The gas spring damper hydraulic rod is an important component used in mechanical systems, combining the functions of a gas spring and a hydraulic damper. It is mainly used to provide damping and shock absorption functions to protect mechanical structures from shock and vibration.

[0003] After searching, a car tailgate flip-type gas spring damping hydraulic rod with announcement number CN219035420U is found, which relates to the technical field of gas springs. The surface of the gas spring is provided with a self-cleaning mechanism, which includes a fixed shell, the surface of the gas spring is connected with the fixed shell, the inner circular surface of the fixed shell is connected with a plurality of connecting rods, one end of the connecting rod is connected with an annular oil-absorbing cotton through an arc plate, and the annular oil-absorbing cotton is aligned with the extended section of the gas spring. When the movable end of the gas spring moves, the hydraulic oil on the surface of the movable end can be adsorbed by the annular oil-absorbing cotton during use, thereby avoiding the problem of hydraulic oil contaminating the user's clothes.

[0004] Based on the above patent, the background technology thereof mentions that the cross-sectional area of ​​the piston rod is smaller than the cross-sectional area of ​​the piston to generate a pressure difference to achieve the movement of the piston rod. When the piston rod moves, it will inevitably be stained with some hydraulic oil. When the user's clothes are stained with it, it is difficult to clean. In this regard, in order to solve this technical problem, this application proposes a gas spring damping hydraulic rod. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a gas spring damping hydraulic rod, which has more stable operation and improves the safety of the device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A gas spring damping hydraulic rod comprises an external cylinder body, an internal oil cylinder is fixedly connected to the interior of the external cylinder body, a push-pull rod is slidably connected to the interior of the external cylinder body, the bottom end of the push-pull rod is fixedly connected to a push-pull plate, the bottom end of the push-pull plate is fixedly connected to a sealing rubber pad, an oil outlet groove is opened in the middle of the bottom end of the internal oil cylinder, a plurality of support rods are evenly fixedly connected to the bottom end of the internal oil cylinder, a limiting ring is fixedly connected to the outer lower side of the internal oil cylinder, a liquid blocking traction assembly is installed inside the limiting ring, a plurality of internal reinforcing columns are evenly fixedly connected to the outside of the internal oil cylinder, and a reinforcing fixing assembly is installed outside the external cylinder body.

[0008] Furthermore, the reinforcing and fixing assembly includes a plurality of limiting mounting rings located outside the outer cylinder, a plurality of mounting grooves are evenly arranged around the outer periphery of the outer cylinder, the interiors of the limiting mounting rings are fixedly connected with strong rib reinforcement rings, and the interiors of the mounting grooves are fixedly connected with connecting reinforcement rods.

[0009] Furthermore, the liquid blocking traction assembly includes first holes located on the left and right sides of the limiting ring, the lower extrusion blocks are nested inside the first holes, the front and rear sides of the limiting ring are opened with second holes, the upper extrusion blocks are nested inside the second holes, the front and rear sides of the internal oil cylinder are fixedly connected with the second fixed plate, the left and right sides of the internal oil cylinder are fixedly connected with the first fixed plate, the top of the upper extrusion block is connected to the bottom end of the second fixed plate by a spring, and the top of the lower extrusion block is connected to the bottom end of the first fixed plate by a tension spring.

[0010] Furthermore, outer sides of the second fixing plates are respectively fixedly connected to the inner walls of the outer cylinder, and outer sides of the first fixing plates are respectively fixedly connected to the inner walls of the outer cylinder.

[0011] Furthermore, the bottom ends of the support rods are respectively fixedly connected to the inner bottom ends of the outer cylinders, and the outer parts of the sealing rubber pads are attached to the inner wall of the inner oil cylinder.

[0012] Furthermore, outer sides of the internal reinforcement columns are respectively fixedly connected to the inner walls of the external cylinder.

[0013] Furthermore, the outer parts of the connecting reinforcement rods are respectively fixedly connected to the inner parts of the rib reinforcement rings.

[0014] The utility model has the following beneficial effects:

[0015] In the utility model, the movement of the damping hydraulic rod is completed through the internal oil cylinder, the limiting ring, the first fixed plate, the tension spring, the second fixed plate, the spring, the first hole, the second hole, the upper extrusion block, the first hole, and the lower extrusion block, so as to prevent the internal oil-gas mixture from overflowing to the outside as the push rod moves, thereby ensuring the amount of the internal oil-gas mixture and making the operation more stable.

[0016] In the utility model, the pressure protection of the hydraulic rod is completed through the external cylinder, the rib reinforcement ring, the connecting reinforcement rod, the internal reinforcement column, the internal oil cylinder, the support rod, the limit installation ring and the installation groove, so as to avoid the damage of the outer wall caused by the excessive internal pressure and improve the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall diagram of a gas spring damping hydraulic rod proposed by the utility model;

[0018] Figure 2 This is an internal diagram of a gas spring damping hydraulic rod proposed in the utility model;

[0019] Figure 3 A diagram of a limiting ring mechanism of a gas spring damping hydraulic rod proposed in the utility model;

[0020] Figure 4 This is an internal diagram of an outer cylinder of a gas spring damping hydraulic rod proposed in the utility model;

[0021] Figure 5 This is a diagram of the external cylinder mechanism of a gas spring damping hydraulic rod proposed by the utility model;

[0022] Figure 6 The utility model discloses a rib reinforcement ring mechanism diagram of a gas spring damping hydraulic rod.

[0023] Legend:

[0024] 1. External cylinder; 2. Push-pull rod; 3. Reinforcement ring; 4. Connecting reinforcement rod; 5. Internal oil cylinder; 6. Limit mounting ring; 7. Internal reinforcement column; 8. First fixed plate; 9. Tension spring; 10. Limiting ring; 11. Support rod; 12. First hole; 13. Upper extrusion block; 14. Second hole; 15. Lower extrusion block; 16. Sealing pad; 17. Push-pull plate; 18. Oil outlet; 19. Second fixed plate; 20. Spring; 21. Mounting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides an embodiment of a gas spring damping hydraulic rod, comprising an external cylinder body, the interior of the external cylinder body is fixedly connected with an internal oil cylinder, the interior of the external cylinder body is slidably connected with a push-pull rod, the bottom end of the push-pull rod is fixedly connected with a push-pull plate, the bottom end of the push-pull plate is fixedly connected with a sealing rubber pad, an oil outlet groove is opened in the middle of the bottom end of the internal oil cylinder, the bottom end of the internal oil cylinder is evenly fixedly connected with a plurality of support rods, the lower side of the outside of the internal oil cylinder is fixedly connected with a limiting ring, a liquid blocking traction assembly is installed inside the limiting ring, a plurality of internal reinforcing columns are evenly fixedly connected around the outside of the internal oil cylinder, a reinforcing fixing assembly is installed outside the external cylinder body, and the liquid blocking traction assembly includes first holes located on the left and right sides of the limiting ring. The first holes are each nested with lower extrusion blocks, the front and rear sides of the limiting ring are each provided with second holes, the second holes are each nested with upper extrusion blocks, the front and rear sides of the internal oil cylinder are each fixedly connected with a second fixing plate, the left and right sides of the internal oil cylinder are each fixedly connected with the first fixing plate, the top of the upper extrusion block is respectively connected to the bottom end of the second fixing plate by a spring, the top of the lower extrusion block is respectively connected to the bottom end of the first fixing plate by a tension spring, the outer sides of the second fixing plates are respectively correspondingly fixedly connected to the inner wall of the external cylinder, the outer sides of the first fixing plates are respectively correspondingly fixedly connected to the inner wall of the external cylinder, the bottom ends of the support rods are respectively correspondingly fixedly connected to the inner bottom ends of the external cylinder, and the outer side of the sealing rubber pad is fitted to the inner wall of the internal oil cylinder;

[0027] When the damping hydraulic rod is working, the push-pull rod pushes the push-pull plate inward to move downward inside the internal oil cylinder, and the sealing rubber pad pushes the oil-gas mixture inside the internal oil cylinder downward, and the mixture flows to the inside of the outer cylinder through the oil outlet groove. As the push-pull rod is pushed inward, the internal pressure of the outer cylinder increases, and the oil-gas mixture is pushed upward through the second hole, and the upper extrusion block is pushed upward due to the pressure, thereby pulling the oil-gas mixture into the interior of the outer cylinder, making the push-pull rod retract slowly. When the push-pull rod is pushed outward, the push-pull plate pulls the oil-gas mixture inside the internal oil cylinder. The change in pressure causes the oil-gas mixture inside the external cylinder to rush out the lower extrusion block through the first hole, thereby flowing into the interior of the internal oil cylinder again, preventing the oil-gas mixture from flowing out, and preventing the internal oil-gas mixture from overflowing to the outside as the push rod moves, thereby ensuring the amount of internal oil-gas mixture and making the operation more stable.

[0028] Reference Figure 1 , Figure 5 and Figure 6The reinforcing and fixing assembly includes a plurality of position-limiting mounting rings located outside the outer cylinder, a plurality of mounting grooves are evenly arranged around the outer periphery of the outer cylinder, the inner portions of the position-limiting mounting rings are fixedly connected with rib reinforcement rings, the inner portions of the mounting grooves are fixedly connected with connecting reinforcement rods, the outer portions of the internal reinforcement columns are respectively fixedly connected to the inner wall of the outer cylinder, and the outer portions of the connecting reinforcement rods are respectively fixedly connected to the inner portions of the rib reinforcement rings;

[0029] And with the movement of the push-pull rod, great pressure will be generated inside the external cylinder and the internal oil cylinder, and the pressure of the oil-gas mixture will be released to the outside of the external cylinder. Multiple rib reinforcement rings will limit and protect the external surface of the external cylinder, thereby fixing it, and multiple connecting reinforcement rods will strengthen the connection of the rib reinforcement rings to form a whole, which will offset the pressure. When the push-pull rod is pulled outward, a large pressure will be generated on the internal oil cylinder, which is supported by multiple internal reinforcement columns and support rods to avoid damage to the outer wall due to excessive internal pressure, thereby improving the safety of the device.

[0030] Working principle: When the damping hydraulic rod is working, the push-pull rod pushes the push-pull plate inward to move downward inside the inner oil cylinder, and the sealing rubber pad pushes the oil-gas mixture inside the inner oil cylinder downward, and the mixture flows to the inside of the outer cylinder through the oil outlet slot. As the push-pull rod is pushed inward, the internal pressure of the outer cylinder increases, and the oil-gas mixture is pushed upward through the second hole. The upper extrusion block is pushed upward due to the pressure, thereby pulling the oil-gas mixture into the inner part of the outer cylinder, making the push-pull rod retract slowly. When the push-pull rod is pushed outward, the push-pull plate pumps the oil-gas mixture inside the inner oil cylinder, and the pressure change outside The oil and gas mixture inside the cylinder body pushes out the lower extrusion block through the first hole, and then flows into the inner oil cylinder again to prevent the oil and gas mixture from flowing out to the outside, and with the movement of the push-pull rod, the inside of the outer cylinder body and the inner oil cylinder will generate great pressure, and the pressure of the oil and gas mixture will be released to the outside of the outer cylinder body. Multiple rib reinforcement rings limit and protect the outer surface of the outer cylinder body to fix it, and multiple connecting reinforcement rods strengthen the connection of the rib reinforcement rings to form a whole to offset the pressure. When the push-pull rod is pulled out, a large pressure will be generated on the internal oil cylinder, which is supported by multiple internal reinforcement columns and support rods.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas spring damping hydraulic rod, comprising an outer cylinder (1), characterized in that: The interior of the external cylinder (1) is fixedly connected to an internal oil cylinder (5), the interior of the external cylinder (1) is slidably connected to a push-pull rod (2), the bottom end of the push-pull rod (2) is fixedly connected to a push-pull plate (17), the bottom end of the push-pull plate (17) is fixedly connected to a sealing rubber pad (16), an oil outlet slot (18) is provided in the middle of the bottom end of the internal oil cylinder (5), the bottom end of the internal oil cylinder (5) is evenly fixedly connected to a plurality of support rods (11), the lower side of the exterior of the internal oil cylinder (5) is fixedly connected to a limiting ring (10), a liquid blocking traction assembly is installed inside the limiting ring (10), a plurality of internal reinforcement columns (7) are evenly fixedly connected around the exterior of the internal oil cylinder (5), and a reinforcement fixing assembly is installed outside the external cylinder (1).

2. A gas spring damping hydraulic rod according to claim 1, characterized in that: The reinforcing and fixing assembly comprises a plurality of position-limiting mounting rings (6) located outside the outer cylinder (1); a plurality of mounting grooves (21) are evenly arranged around the outer periphery of the outer cylinder (1); the interiors of the position-limiting mounting rings (6) are fixedly connected to rib reinforcement rings (3); and the interiors of the mounting grooves (21) are fixedly connected to connecting reinforcement rods (4).

3. The gas spring damping hydraulic rod according to claim 1, characterized in that: The liquid blocking traction assembly comprises first holes (12) located on the left and right sides of the limiting ring (10), the first holes (12) are each nested with a lower extrusion block (15), the front and rear sides of the limiting ring (10) are each opened with a second hole (14), the second holes (14) are each nested with an upper extrusion block (13), the front and rear sides of the internal oil cylinder (5) are each fixedly connected with a second fixing plate (19), the left and right sides of the internal oil cylinder (5) are each fixedly connected with a first fixing plate (8), the top end of the upper extrusion block (13) is respectively connected to the bottom end of the second fixing plate (19) via a spring (20), and the top end of the lower extrusion block (15) is respectively connected to the bottom end of the first fixing plate (8) via a tension spring (9).

4. A gas spring damping hydraulic rod according to claim 3, characterized in that: The outer sides of the second fixing plates (19) are respectively fixedly connected to the inner walls of the outer cylinder (1), and the outer sides of the first fixing plates (8) are respectively fixedly connected to the inner walls of the outer cylinder (1).

5. The gas spring damping hydraulic rod according to claim 3, characterized in that: The bottom ends of the support rods (11) are respectively fixedly connected to the inner bottom ends of the outer cylinder (1), and the outer portion of the sealing rubber pad (16) is attached to the inner wall of the inner oil cylinder (5).

6. The gas spring damping hydraulic rod according to claim 2, characterized in that: The outer sides of the internal reinforcement columns (7) are respectively fixedly connected to the inner wall of the external cylinder (1).

7. The gas spring damping hydraulic rod according to claim 2, characterized in that: The exterior of the connecting reinforcement rod (4) is respectively fixedly connected to the interior of the rib reinforcement ring (3).

Images