Adjustable integrated oil cylinder

Abstract

The utility model discloses a kind of adjustable connected body oil cylinder, specifically related to mechanical technical field, the utility model includes two identical oil cylinder and adjusting seat group, oil cylinder includes cylinder body, piston rod, piston and end piece, one end of cylinder body is closed end, and is connected with pull ring one, the other end of cylinder body is the open end with communicating inner chamber, and open end is connected with the end piece for slidingly connecting piston rod, piston is fixedly connected in the inner end of piston rod, and piston is slidingly connected in cylinder inner chamber, the outer end of piston rod is connected with pull ring two, the side portion of end piece is provided with pipe joint one, pipe joint one is communicated with adjusting seat group by hose, the hydraulic oil in two oil cylinders is filled between respective piston and end piece respectively, and is circulated by adjusting seat group. It can be realized in stretching process to extrude transmission to hydraulic oil, realize stretch adjustable, relative to the original compression adjustable type oil cylinder structure, more suitable for the use of stair machine, mountain climber and other exercise equipment.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a hydraulic cylinder, particularly an adjustable integrated hydraulic cylinder. Background Technology

[0002] A stair climber is a multi-functional aerobic training fitness machine that simulates mountain climbing. Named for its resemblance to the exercise, it emerged after the treadmill. Its main principle is that users, on a machine with a significant incline, continuously alternate their leg movements back and forth to mimic outdoor mountain climbing and achieve fitness goals. Existing stair climbers, such as the one disclosed in patent announcement number CN221815233U, incorporate a damping component within the main body. Two pedals are connected to this component, which provides damping for the up-and-down movement of the pedals. However, because the two damping cylinders are independent and the resistance cannot be adjusted, it cannot meet the needs of multiple users within a family. Furthermore, the force applied by the user's two feet is often inconsistent. After prolonged independent use, deviations will develop between the two damping cylinders, exacerbating the difference in force applied by the user's feet and hindering the workout. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an adjustable integrated hydraulic cylinder.

[0004] The objective of this utility model can be achieved through the following technical solution: An adjustable integrated hydraulic cylinder includes two identical hydraulic cylinders and an adjusting seat assembly disposed between the two hydraulic cylinders and connected to each of the two hydraulic cylinders respectively. The hydraulic cylinders are characterized in that each cylinder includes a cylinder body, a piston rod, a piston, and a head assembly. One end of the cylinder body is a closed end connected to a pull ring, and the other end of the cylinder body is an open end with a communicating inner cavity. The open end is connected to a head assembly for sliding connection to the piston rod. The piston is fixed to the inner end of the piston rod and slidably connected within the inner cavity of the cylinder body. The outer end of the piston rod is connected to a pull ring. A pipe connector is provided on the side of the head assembly, and the pipe connector is connected to the adjusting seat assembly via a hose. The hydraulic oil in the two cylinders fills the space between their respective pistons and head assemblies and flows back and forth through the adjusting seat assembly.

[0005] When the piston rod is stretched, hydraulic oil can enter the other cylinder from one cylinder through the adjusting seat assembly, which can force the other cylinder to compress. The two cylinders are connected by the adjusting seat assembly, which can make the pressure between the two cylinders consistent and ensure that the two cylinders work in unison. The adjusting seat assembly can adjust the flow rate and velocity of the hydraulic oil between the two cylinders, thereby realizing the resistance adjustment of the two cylinders.

[0006] In the aforementioned adjustable integrated hydraulic cylinder, the adjusting seat assembly includes an adjusting seat body, an adjusting rod, and a pressure plate. The adjusting seat body has a receiving cavity for accommodating the inner end of the adjusting rod and allowing the inner end of the adjusting rod to rotate. The pressure plate covers the adjusting seat body. The adjusting rod passes through the pressure plate, and the outer end of the adjusting rod located outside the pressure plate is configured as a driving end for driving the adjusting rod to rotate. The inner end of the adjusting rod located inside the pressure plate has two relatively independent grooves, groove one and groove two. Grooves one and groove two are connected by a connecting flow channel. Grooves one and groove two respectively form flow channel one and flow channel two with the inner wall of the receiving cavity. Flow channel one and flow channel two are each connected to a pipe joint two inserted into the adjusting seat body.

[0007] In the aforementioned adjustable integrated hydraulic cylinder, the first groove is a groove arranged around the outer wall of the inner end of the adjusting rod at the same height, and the first groove has a partition block that separates the annular connection. The second groove is an annular stepped groove provided at the bottom end of the adjusting rod.

[0008] In the aforementioned adjustable integrated hydraulic cylinder, the connecting flow channel is formed by the connecting groove provided on the outer wall of the inner end of the adjusting rod and the inner wall of the receiving cavity.

[0009] In the aforementioned adjustable integrated hydraulic cylinder, the connecting groove is inclined relative to the groove and is located on the side of the partition block.

[0010] In the aforementioned adjustable integrated hydraulic cylinder, the inner end of the adjusting rod is closely connected to the inner wall of the accommodating cavity of the adjusting seat, and the first flow channel and the second flow channel are connected only through a connecting flow channel.

[0011] In the aforementioned adjustable integrated hydraulic cylinder, the two pipe joints are respectively connected to the corresponding hydraulic cylinder's pipe joint through a connector and a hose.

[0012] Compared with the prior art, this utility model has the following advantages: 1. The hydraulic cylinder of this utility model can extrude hydraulic oil during the stretching process, thereby achieving adjustable stretching. Compared with the original adjustable compression hydraulic cylinder structure, it is more suitable for use in sports equipment such as stair climbers and climbing machines; 2. The flow rate and velocity of the hydraulic oil between the two hydraulic cylinders can be adjusted by the adjusting seat assembly, thereby adjusting the resistance of the hydraulic cylinder; 3. By rotating the adjusting rod with a knob, the resistance adjustment value of the hydraulic cylinder can be quantitatively adjusted, thereby ensuring that the resistance is consistent with each adjustment; 4. This utility model can ensure that the resistance between the two pedals driven by the two hydraulic cylinders is consistent, ensuring the coordination of the legs during exercise. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] Figure 3 This is a longitudinal sectional view of the oil cylinder in this utility model.

[0016] Figure 4 This is a longitudinal sectional view of the adjusting seat assembly in this utility model.

[0017] Figure 5 This is an exploded view of the adjusting seat assembly in this utility model.

[0018] In the diagram, 1. Hydraulic cylinder; 2. Adjusting seat assembly; 3. Cylinder body; 4. Piston rod; 5. Piston; 6. End cap; 7. Pull ring one; 8. Connector; 9. Pull ring two; 10. Pipe joint one; 11. Hope; 12. Adjusting seat body; 13. Adjusting rod; 1301. Groove one; 1302. Groove two; 1303. Partition block; 1304. Connecting groove; 1305. Annular groove; 14. Pressure plate; 15. Pipe joint two. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] Reference Figure 1 This embodiment is an adjustable integrated hydraulic cylinder, including two identical hydraulic cylinders 1 and an adjusting seat assembly 2 disposed between the two hydraulic cylinders 1 and connected to the two hydraulic cylinders 1 respectively. The hydraulic cylinder 1 includes a cylinder body 3, a piston rod 4, a piston 5 and a head 6. One end of the cylinder body 3 is a closed end and is connected to a pull ring 7. The other end of the cylinder body 3 is an open end with a communicating inner cavity, and the open end is connected to the head 6 for sliding connection of the piston rod 4. The piston 5 is fixed to the inner end of the piston rod 4 and is slidably connected in the inner cavity of the cylinder body 3. The outer end of the piston rod 4 is connected to a pull ring 9. The side of the head 6 is provided with a pipe joint 10, which is connected to the adjusting seat assembly 2 through a hose 11. The hydraulic oil in the two hydraulic cylinders 1 is respectively filled between their respective pistons 5 and head 6, and flows back and forth through the adjusting seat assembly 2.

[0021] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5The adjusting seat assembly 2 includes an adjusting seat body 12, an adjusting rod 13, and a pressure plate 14. The adjusting seat body 12 has a receiving cavity for accommodating the inner end of the adjusting rod 13 and allowing the inner end of the adjusting rod 13 to rotate. The pressure plate 14 covers the adjusting seat body 12. The adjusting rod 13 passes through the pressure plate 14, and the outer end of the adjusting rod 13 located outside the pressure plate 14 is made into a driving end for driving the adjusting rod 13 to rotate. The inner end of the adjusting rod 13 located inside the pressure plate 14 has two relatively independent grooves, groove 1301 and groove 2 1302. Grooves 1301 and groove 2 1302 are connected by a connecting channel. Grooves 1301 and groove 2 1302 respectively form flow channel 1 and flow channel 2 with the inner wall of the receiving cavity. Flow channel 1 and flow channel 2 are each connected to a pipe connector 2 15 inserted on the adjusting seat body 12.

[0022] Furthermore, groove one 1301 is a groove arranged at the same height on the outer wall of the inner end of the adjusting rod 13, and groove one 1301 has a partition block 1303 that separates the annular connection; groove two 1302 is an annular stepped groove provided at the bottom end of the adjusting rod 13. For example... Figure 3 As shown, the second pipe connector 15 on the left side of the adjusting seat 12 is connected to the first groove 1301, and the other pipe connector 15 on the left side is connected to the second groove 1302.

[0023] Furthermore, the inner end of the adjusting rod 13 is also provided with several annular grooves 1305 for embedding sealing rings. This ensures that hydraulic oil does not leak out.

[0024] Furthermore, the connecting channel is formed by the connecting groove 1304 provided on the outer wall of the inner end of the adjusting rod 13 and the inner wall of the receiving cavity.

[0025] Furthermore, the connecting groove 1304 is inclined relative to the groove 1301 and located on the side of the partition block 1303. The connecting groove 1304 and the partition block 1303 are arranged adjacent to each other, which can save space and guide the flow of hydraulic oil. In conjunction with the rotation of the adjusting rod, the resistance of the hydraulic cylinder can be effectively quantified and adjusted.

[0026] Furthermore, the inner end of the adjusting rod 13 is closely connected to the inner wall of the accommodating cavity of the adjusting seat 12, and the flow channel one and the flow channel two are connected only through the connecting flow channel.

[0027] Furthermore, the two pipe joints 15 are connected to the corresponding pipe joints 10 of the hydraulic cylinder 1 via connector 8 and hose 11, respectively. The hose 11 is a non-fixed structure that can move with the stretching and compression of the hydraulic cylinder 1 to meet the usage requirements of sports equipment such as stair climbers and mountain climbers.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An adjustable integrated hydraulic cylinder, comprising two identical hydraulic cylinders (1) and an adjusting seat assembly (2) disposed between the two hydraulic cylinders (1) and respectively connected to the two hydraulic cylinders (1), characterized in that, The cylinder (1) includes a cylinder body (3), a piston rod (4), a piston (5), and a head (6). One end of the cylinder body (3) is a closed end and is connected to a pull ring (7). The other end of the cylinder body (3) is an open end with a communicating inner cavity and is connected to a head (6) for sliding connection of the piston rod (4). The piston (5) is fixed to the inner end of the piston rod (4) and is slidably connected in the inner cavity of the cylinder body (3). The outer end of the piston rod (4) is connected to a pull ring (9). A pipe joint (10) is provided on the side of the head (6). The pipe joint (10) is connected to the adjusting seat assembly (2) through a hose (11). The hydraulic oil in the two cylinders (1) is filled between their respective pistons (5) and head (6) and flows back and forth through the adjusting seat assembly (2).

2. The adjustable integrated hydraulic cylinder according to claim 1, characterized in that, The adjusting seat assembly (2) includes an adjusting seat body (12), an adjusting rod (13), and a pressure plate (14). The adjusting seat body (12) has a receiving cavity for accommodating the inner end of the adjusting rod (13) and allowing the inner end of the adjusting rod (13) to rotate. The pressure plate (14) covers the adjusting seat body (12). The adjusting rod (13) passes through the pressure plate (14), and the outer end of the adjusting rod (13) located outside the pressure plate (14) is made into a driving end for driving the adjusting rod (13) to rotate. The adjusting rod (13) has a relatively independent groove one (1301) and groove two (1302) at its inner end inside the pressure plate (14). The groove one (1301) and groove two (1302) are connected by a connecting channel. The groove one (1301) and groove two (1302) form a flow channel one and a flow channel two with the inner wall of the accommodating cavity, respectively. The flow channel one and the flow channel two are each connected to a pipe joint two (15) inserted on the adjusting seat (12).

3. The adjustable integrated hydraulic cylinder according to claim 2, characterized in that, The first groove (1301) is a groove arranged at the same height on the outer wall of the inner end of the adjusting rod (13), and the first groove (1301) has a partition block (1303) that separates the annular connection. The second groove (1302) is an annular stepped groove provided at the bottom end of the adjusting rod (13).

4. The adjustable integrated hydraulic cylinder according to claim 3, characterized in that, The connecting channel is formed by the connecting groove (1304) provided on the outer wall of the inner end of the adjusting rod (13) and the inner wall of the accommodating cavity.

5. The adjustable integrated hydraulic cylinder according to claim 4, characterized in that, The connecting groove (1304) is inclined relative to the first groove (1301) and is located on the side of the partition block (1303).

6. The adjustable integrated hydraulic cylinder according to claim 2, 3, 4, or 5, characterized in that, The inner end of the adjusting rod (13) is closely connected to the inner wall of the accommodating cavity of the adjusting seat (12), and the flow channel one and the flow channel two are connected only through the connecting flow channel.

7. The adjustable integrated hydraulic cylinder according to claim 2, 3, 4, or 5, characterized in that, The two pipe joints (15) are connected to the pipe joints (10) of the corresponding cylinder (1) via connector (8) and hose (11).

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