Hydraulic rod with buffering function

Abstract

The utility model discloses a hydraulic rod with buffering function relates to the technical field of hydraulic rod, the hydraulic rod includes: the rod body, the hollow wire hole is arranged in the rod body along the axial direction, the valve jar is connected in the end of rod body, the inner chamber of valve jar is linked together with wire hole, the installation ring is arranged in the valve jar towards the one side of rod body, the installation ring fixedly covers the outside circumference of rod body, and installation ring and valve jar are spaced apart along the axial direction of rod body, the buffer washer is covered in the rod body, and the buffer washer is in abutment on the one side of installation ring away from valve jar. The utility model can conveniently install buffer washer on the hydraulic rod, and then can play the buffering effect when the hydraulic rod reciprocatingly moves, reduces the abrasion of valve jar and rod body, reduces the influence of vibration to solenoid valve in valve jar.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic rods, and in particular to a hydraulic rod with a buffer function. Background Technology

[0002] Hydraulic rods are used in hydraulic devices such as hydraulic cylinders and shock absorbers, and are driven by pressurized fluids such as hydraulic oil to move linearly within the cylinder.

[0003] In some hydraulic devices, a hydraulic rod is connected to a valve cylinder, which is housed within a cylinder body and connected to a piston. A solenoid valve is installed inside the valve cylinder, controlling the flow path within the hydraulic device and regulating the pressure of the fluid within the cylinder. Correspondingly, a hollow hole is provided within the hydraulic rod, positioned along its central axis and connected to the valve cylinder. A wire passes through this hollow hole and is electrically connected to the solenoid valve within the valve cylinder, thereby supplying power to the solenoid valve.

[0004] During the axial reciprocating movement of the hydraulic rod, the part of the hydraulic rod connected to the piston is prone to reciprocating collision with the cylinder body, causing wear on the valve cylinder and the hydraulic rod. Furthermore, the vibration generated by the collision can easily affect the solenoid valve inside the valve cylinder. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic rod with a buffer function, which allows for easy installation of buffer washers on the hydraulic rod, thereby providing a buffering effect during the reciprocating movement of the hydraulic rod, reducing wear on the valve cylinder and rod body, and minimizing the impact of vibration on the solenoid valve inside the valve cylinder.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: This utility model provides a hydraulic rod with a buffer function, the hydraulic rod comprising: The rod body has a hollow wire-passing hole arranged axially inside the rod body; A valve cylinder is connected to the end of the rod body, and the inner cavity of the valve cylinder communicates with the wire hole; The mounting ring is located on the side of the valve cylinder facing the rod body. The mounting ring is fixedly sleeved on the outer periphery of the rod body, and the mounting ring and the valve cylinder are spaced apart along the axial direction of the rod body. A buffer washer is fitted onto the outside of the rod body and abuts against the side of the mounting ring opposite to the valve cylinder.

[0007] Furthermore, the mounting ring is welded and fixed to the outer periphery of the rod.

[0008] Furthermore, a positioning protrusion is provided radially on the outer periphery of the rod body, and the mounting ring abuts against the side of the positioning protrusion away from the valve cylinder.

[0009] Furthermore, the positioning protrusion extends in a ring shape around the circumference of the rod.

[0010] Furthermore, the positioning protrusion is frustum-shaped, and the cross-sectional area of ​​the positioning protrusion gradually decreases in the direction away from the mounting ring.

[0011] Furthermore, the mounting ring has multiple connecting protrusions on the side opposite to the valve cylinder, and the buffer washer has multiple connecting holes on the side facing the mounting ring that mate with the connecting protrusions.

[0012] Furthermore, a ball head is connected to one end of the connecting protrusion facing the buffer washer, and a ball cavity that mates with the ball head is provided at the end of the connecting hole away from the mounting ring.

[0013] Furthermore, the buffer washer is provided with a plurality of perforated holes, which extend radially along the buffer washer and penetrate the periphery of the buffer washer.

[0014] Furthermore, at least two clamping grooves are provided on the outer periphery of the valve cylinder, and the at least two clamping grooves are spaced apart along the circumference of the valve cylinder, and the sidewalls of the clamping grooves are flat surfaces.

[0015] Furthermore, the end of the rod away from the valve cylinder is provided with an external thread, and the inner wall of the valve cylinder is provided with an internal thread.

[0016] In summary, this utility model has the following beneficial effects: 1. In the hydraulic rod with buffer function of this utility model, a solenoid valve can be installed in the inner cavity of the valve cylinder. A wire passes through the wire hole in the rod body and connects to the solenoid valve in the valve cylinder. A mounting ring is fixedly sleeved on the outer periphery of the rod body, and a buffer washer is supported by the mounting ring. When the rod body reciprocates along the axial direction, the buffer washer contacts the bottom wall of the cylinder body, which plays a buffering role to reduce the collision wear between the rod body and the valve cylinder. The mounting ring and the valve cylinder are spaced apart along the axial direction of the rod body, so that when the buffer washer collides, the vibration is not easily transmitted directly to the valve cylinder, thereby reducing the impact of vibration on the solenoid valve in the valve cylinder.

[0017] 2. The mounting ring is welded and fixed to the outer circumference of the rod body to ensure the connection strength between the mounting ring and the rod body.

[0018] 3. A positioning protrusion is set on the outer periphery of the rod body. The positioning protrusion abuts against the side of the mounting ring, so that the position of the mounting ring can be quickly positioned before welding. At the same time, the positioning protrusion can support the mounting ring during welding, which facilitates the welding operation of the mounting ring.

[0019] 4. The positioning protrusion extends in a ring shape around the circumference of the rod. When welding the installation ring, the positioning protrusion can bear the molten welding metal, which facilitates the welding of the installation ring. At the same time, the welding slag is blocked by the ring-shaped positioning protrusion and does not fall everywhere, which facilitates cleaning after welding.

[0020] 5. The positioning protrusion is shaped like a frustum, and its cross-sectional area gradually decreases in the direction away from the mounting ring. That is, the side of the positioning protrusion that abuts against the mounting ring has a larger bottom area. Thus, while ensuring the supporting strength of the positioning protrusion to the mounting ring, the positioning protrusion maintains a small volume and weight.

[0021] 6. Multiple connecting protrusions engage with multiple connecting holes on the buffer washer, thereby confining the buffer washer to the mounting ring. When the rod moves, the buffer washer is less likely to move relative to the mounting ring and wear out.

[0022] 7. A ball head is provided at the end of the connecting protrusion facing the buffer washer, and a ball cavity is provided in the connecting hole to cooperate with the ball head. So when the buffer washer is installed on the mounting ring, the cooperation between the ball head and the ball cavity makes it difficult for the buffer washer to fall off the mounting ring, ensuring the consistency of the axial movement of the buffer washer and the mounting ring.

[0023] 8. The buffer washer has multiple perforated holes to allow it to deform and absorb impact during collision, thus improving the buffering effect.

[0024] 9. At least two clamping grooves are provided on the outer periphery of the valve cylinder. The sidewalls of the clamping grooves are flat to facilitate clamping and fixing the valve cylinder with a fixture, thereby facilitating the welding of the rod to the valve cylinder. After the rod is welded to the valve cylinder, the fixture clamps and fixes the valve cylinder and the rod through the clamping grooves, which facilitates the welding of the mounting ring.

[0025] 10. An external thread is provided at the end of the rod away from the valve cylinder to facilitate connection with an external mechanism to be driven; an internal thread is provided inside the valve cylinder to facilitate the installation and sealing of the solenoid valve. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a hydraulic rod according to an embodiment of the present invention. Figure 1 .

[0027] Figure 2 This is a three-dimensional structural diagram of a hydraulic rod according to an embodiment of the present invention. Figure 1 .

[0028] Figure 3 This is a three-dimensional structural diagram of the rod, valve cylinder, and positioning protrusion according to an embodiment of the present invention.

[0029] Figure 4 This is a three-dimensional structural diagram of the mounting ring according to an embodiment of the present invention.

[0030] Figure 5 This is a three-dimensional structural diagram of a buffer washer according to an embodiment of the present invention.

[0031] In the picture: 1000, Hydraulic rod; 100, Rod body; 110, Cable guide hole; 120, External thread; 200, Valve cylinder; 210, Internal thread; 220, Clamping groove; 300, Mounting ring; 310, Connecting protrusion; 320, Ball head; 400, Buffer washer; 410, Connecting hole; 420, Hollow hole; 500, Positioning protrusion. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] This embodiment discloses a hydraulic rod 1000 with a buffer function, referencing... Figure 1 and Figure 2 The hydraulic rod 1000 includes a rod body 100 and a valve cylinder 200. A hollow wire-passing hole 110 is axially arranged inside the rod body 100. The valve cylinder 200 is welded to the end of the rod body 100, and its inner cavity communicates with the wire-passing hole 110. A solenoid valve can be installed inside the valve cylinder 200, and a wire passes through the wire-passing hole 110 in the rod body 100 to connect to the solenoid valve inside the valve cylinder 200.

[0034] The end of the rod 100 away from the valve cylinder 200 is provided with an external thread 120 for connection to an external mechanism to be driven, so that the hydraulic rod 1000 drives the connected mechanism to move when it moves axially. The inner wall of the valve cylinder 200 is provided with an internal thread 210, and the solenoid valve or sealing end cap can be fitted with the inner wall of the valve cylinder 200 by providing the external thread 120 to facilitate the installation and sealing of the solenoid valve.

[0035] Reference Figures 1 to 5 The rod body 100 is fitted with an mounting ring 300 and a buffer washer 400. The mounting ring 300 is located on the side of the valve cylinder 200 facing the rod body 100 and is coaxially fixed to the outer circumference of the rod body 100. The buffer washer 400 is fitted onto the outside of the rod body 100 and is made of a flexible material such as rubber. The buffer washer 400 abuts against the side of the mounting ring 300 away from the valve cylinder 200. When the rod body 100 reciprocates axially, the buffer washer 400 contacts the bottom wall of the cylinder body, playing a buffering role to reduce the collision wear between the rod body 100 and the valve cylinder 200.

[0036] The mounting ring 300 and the valve cylinder 200 are spaced apart along the axial direction of the rod 100, so that when the buffer washer 400 collides, the vibration is not easily transmitted directly to the valve cylinder 200, thereby reducing the impact of vibration on the solenoid valve inside the valve cylinder 200.

[0037] In this embodiment, both the mounting ring 300 and the buffer washer 400 are annular to accommodate the cylinder of a common cylindrical liquid device. Furthermore, in other embodiments, when the cylinder has a different shape, the mounting ring 300 and the buffer washer 400 can also be configured with other shapes accordingly.

[0038] In this embodiment, the mounting ring 300 is fixed to the outer periphery of the rod 100 by welding to ensure the connection strength between the mounting ring 300 and the rod 100. In other embodiments, the mounting ring 300 may also be fixed to the rod 100 by screws, tensioning, or other suitable connection methods.

[0039] Reference Figures 1 to 3 A positioning protrusion 500 is radially protruding from the outer periphery of the rod body 100, and the positioning protrusion 500 is disposed between the valve cylinder 200 and the mounting ring 300. The mounting ring 300 abuts against the side of the positioning protrusion 500 opposite to the valve cylinder 200. By having the positioning protrusion 500 abut against the side of the mounting ring 300, the position of the mounting ring 300 can be quickly positioned before welding. At the same time, the positioning protrusion 500 can support the mounting ring 300 during welding, facilitating the welding operation of the mounting ring 300.

[0040] In this embodiment, the positioning protrusion 500 extends circumferentially around the rod 100 to form a ring structure, thereby allowing the positioning protrusion 500 to bear the molten welding metal during the welding of the mounting ring 300, facilitating the welding of the mounting ring 300. Simultaneously, the welding slag is blocked by the ring-shaped positioning protrusion 500 during welding, preventing it from falling everywhere and facilitating post-weld cleaning.

[0041] Preferably, the positioning protrusion 500 is frustum-shaped, and the cross-sectional area of ​​the positioning protrusion 500 gradually decreases in the direction away from the mounting ring 300. That is, the side of the positioning protrusion 500 that abuts against the mounting ring 300 is a bottom surface with a larger area. Thus, while ensuring the supporting strength of the positioning protrusion 500 to the mounting ring 300, the positioning protrusion 500 maintains a small volume and weight.

[0042] In addition, in other embodiments, the positioning protrusion 500 may also be configured with other suitable shapes.

[0043] In this embodiment, the positioning protrusion 500 is integrally formed with the rod body 100. The positioning protrusion 500 is machined simultaneously with the rod body 100 to ensure the connection strength between the positioning protrusion 500 and the rod body 100. Alternatively, in other embodiments, the positioning protrusion 500 can be machined separately and then fixed to the rod body 100.

[0044] Reference Figure 4 and Figure 5In this embodiment, the mounting ring 300 has multiple connecting protrusions 310 on the side opposite to the valve cylinder 200, and the buffer washer 400 has multiple connecting holes 410 on the side facing the mounting ring 300 that mate with the connecting protrusions 310. The multiple connecting protrusions 310 mate with the multiple connecting holes 410 on the buffer washer 400, thereby confining the buffer washer 400 on the mounting ring 300. When the rod 100 moves, the buffer washer 400 is less likely to move relative to the mounting ring 300 and thus avoid wear.

[0045] The end of the connecting protrusion 310 facing the buffer washer 400 is connected to a ball head 320, and the end of the connecting hole 410 away from the mounting ring 300 is provided with a ball cavity that mates with the ball head 320. Therefore, when the buffer washer 400 is installed on the mounting ring 300, the engagement of the ball head 320 with the ball cavity prevents the buffer washer 400 from easily detaching from the mounting ring 300, ensuring consistent axial movement between the buffer washer 400 and the mounting ring 300.

[0046] In addition, in other embodiments, the buffer washer 400 and the mounting ring 300 may also be limited by other suitable structures.

[0047] Reference Figure 1 , Figure 2 and Figure 5 In this embodiment, the buffer washer 400 is provided with a plurality of hollow holes 420, which extend radially along the buffer washer 400 and penetrate the periphery of the buffer washer 400. The buffer washer 400 is more likely to deform at the hollow holes 420, so that the buffer washer 400 can deform to absorb the impact during collision, thereby improving the buffering effect of the buffer washer 400.

[0048] Reference Figures 1 to 3 In this embodiment, at least two clamping grooves 220 are provided on the outer periphery of the valve cylinder 200. The at least two clamping grooves 220 are spaced apart along the circumference of the valve cylinder 200. The sidewalls of the clamping grooves 220 are flat surfaces to facilitate clamping and fixing the valve cylinder 200 by a clamp, thereby facilitating the welding of the rod 100 to the valve cylinder 200. After the rod 100 and the valve cylinder 200 are welded together, the clamp holds and fixes the valve cylinder 200 and the rod 100 through the clamping grooves 220, which facilitates the welding of the mounting ring 300.

[0049] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A hydraulic rod with a buffer function, characterized in that, The hydraulic rod (1000) includes: A rod body (100) is provided with a hollow wire-passing hole (110) along the axial direction inside the rod body (100); A valve cylinder (200) is connected to the end of the rod (100), and the inner cavity of the valve cylinder (200) is connected to the wire hole (110); Mounting ring (300) is provided on the side of the valve cylinder (200) facing the rod (100). The mounting ring (300) is fixedly sleeved on the outer periphery of the rod (100), and the mounting ring (300) and the valve cylinder (200) are spaced apart along the axial direction of the rod (100). A buffer washer (400) is sleeved on the outside of the rod body (100) and abuts against the side of the mounting ring (300) away from the valve cylinder (200).

2. A hydraulic rod with a buffer function as described in claim 1, characterized in that, The mounting ring (300) is welded and fixed to the outer periphery of the rod (100).

3. A hydraulic rod with a buffer function as described in claim 2, characterized in that, The outer periphery of the rod (100) is provided with a positioning protrusion (500) protruding radially, and the mounting ring (300) abuts against the side of the positioning protrusion (500) away from the valve cylinder (200).

4. A hydraulic rod with a buffer function as described in claim 3, characterized in that, The positioning protrusion (500) extends in a ring shape around the circumference of the rod (100).

5. A hydraulic rod with a buffer function as described in claim 4, characterized in that, The positioning protrusion (500) is frustum-shaped, and the cross-sectional area of ​​the positioning protrusion (500) gradually decreases in the direction away from the mounting ring (300).

6. A hydraulic rod with a buffer function as described in claim 1, characterized in that, The mounting ring (300) has a plurality of connecting protrusions (310) on the side opposite to the valve cylinder (200), and the buffer washer (400) has a plurality of connecting holes (410) on the side facing the mounting ring (300) that mate with the connecting protrusions (310).

7. A hydraulic rod with a buffer function as described in claim 6, characterized in that, The end of the connecting protrusion (310) facing the buffer washer (400) is connected to a ball head (320), and the end of the connecting hole (410) away from the mounting ring (300) is provided with a ball cavity that mates with the ball head (320).

8. A hydraulic rod with a buffer function as described in claim 1, characterized in that, The buffer washer (400) is provided with a plurality of hollow holes (420), which extend radially along the buffer washer (400) and penetrate the periphery of the buffer washer (400).

9. A hydraulic rod with a buffer function as described in claim 1, characterized in that, At least two clamping grooves (220) are provided on the outer periphery of the valve cylinder (200). The at least two clamping grooves (220) are arranged at intervals along the circumference of the valve cylinder (200), and the sidewall of the clamping groove (220) is a straight surface.

10. A hydraulic rod with a buffer function as described in claim 1, characterized in that, The rod (100) has an external thread (120) at the end away from the valve cylinder (200), and the valve cylinder (200) has an internal thread (210) on its inner wall.

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