CN217054789U

CN217054789U - Novel damping rod

Info

Publication number: CN217054789U
Application number: CN202220698963.3U
Authority: CN
Inventors: 林维海
Original assignee: Wenzhou Houhe Hardware Products Co ltd
Current assignee: Wenzhou Houhe Hardware Products Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-26
Anticipated expiration: 2032-03-29

Abstract

The utility model discloses a novel damping rod that damping oil velocity of flow is more even. The technical scheme adopted by the device comprises a cylinder body, a piston rod arranged in the cylinder body and a piston arranged at the front end of the piston rod, wherein the piston is at least provided with a main oil passing hole, and the device is characterized in that: the lateral wall of piston is equipped with a set of toper of circumference range and crosses the oil groove, and is equipped with the piston ring of stereoplasm on front end integrated into one piece's the piston ring erection column, the piston ring with be equipped with between the piston ring erection column with cross the first oily clearance of crossing of oil groove intercommunication. The advantages are that: the conical oil passing groove is matched with the hard piston ring, so that damping oil can rapidly pass through the oil passing groove even if the damping oil is impacted by violence, and the deformation of the cylinder body can be prevented; in addition, the damping rod with the structure has more stable buffering and no pause and frustration.

Description

Novel damping rod

Technical Field

The utility model relates to a damping rod.

Background

The small damping rod can be used for buffering a moving door, and structurally comprises a cylinder body, a piston arranged in the cylinder body and a piston rod connected with the piston, damping oil (silicone oil) is filled in the cylinder body, at least one oil passing hole is formed in the piston, and two ends of the cylinder body are sealed. The working principle is as follows: under the action of external force, the piston rod moves towards the cylinder body, and damping oil quickly passes through the narrow oil passing hole, so that large resistance is generated. The piston outer wall of traditional damping rod is direct and cylinder inner wall interference fit, and the shortcoming of existence is: when the cylinder body is impacted by external force violence, the cylinder body is expanded and deformed, and the buffering effect is lost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a more even novel damping rod of damping oil velocity of flow.

In order to solve the technical problem, the technical scheme adopted by the device comprises a cylinder body, a piston rod arranged in the cylinder body and a piston arranged at the front end of the piston rod, wherein the piston is at least provided with a main oil passing hole, and the device is characterized in that: the lateral wall of piston is equipped with a set of toper of circumference range and crosses the oil groove, and is equipped with the piston ring of stereoplasm on front end integrated into one piece's the piston ring erection column, the piston ring with be equipped with between the piston ring erection column with cross the first oily clearance of crossing of oil groove intercommunication.

The novel damping rod is characterized in that: the piston ring mounting post upper end integrated into one piece has "H" type buckle, "H" type buckle both ends be equipped with cross the second of oil groove intercommunication and cross oily clearance.

The novel damping rod is characterized in that: two ends of the H-shaped buckle are provided with chamfered parts,

the piston ring is installed into the piston ring mounting column in a forced extrusion mode.

Novel damping rod, its characterized in that: and a gap is reserved between the side wall of the piston ring and the inner wall of the cylinder body.

Novel damping rod, its characterized in that: the front end of the piston ring is provided with a positioning groove.

The novel damping rod is characterized in that: the piston is provided with at least one oil passing hole.

Novel damping rod, its characterized in that: the section of the piston ring mounting column is square.

The utility model discloses a novel damping rod advantage: the conical oil passing groove is matched with the hard piston ring, so that damping oil can rapidly pass through the oil passing groove even if the damping oil is impacted by violence, and the deformation of the cylinder body can be prevented; in addition, the damping rod with the structure has more stable buffering and no pause and frustration.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a cross-sectional view of the novel damping rod of the present invention;

fig. 2 is a schematic view of the assembly between the piston and the piston ring of the present invention;

fig. 3 is a partially enlarged view of the novel damping rod of the present invention;

fig. 4 is a schematic diagram of the piston structure of the present invention.

Detailed Description

As shown in fig. 1 to fig. 4, the novel damping rod of the present invention comprises a cylinder body 1, a piston rod 2 arranged in the cylinder body 1 and a piston 3 arranged at the front end of the piston rod 2. The piston 3 is provided with a main oil passing hole 12. And the other end of the piston rod 2 is provided with a sealing body 13 and an end cover 14 which are in sealing fit with the cylinder body 1. And a return spring 15 is arranged between the sealing body 13 and the end cover 14. The side wall of the piston 3 is provided with a group of conical oil passing grooves 4 which are circumferentially arranged, a piston ring mounting column 5 which is integrally formed at the front end of the piston 3 is provided with a hard piston ring 6, and the piston ring 6 is usually made of hard plastics. And a first oil passing gap 7 communicated with the oil passing groove 4 is arranged between the piston ring 6 and the piston ring mounting column 5. The conical oil passing groove 4 consists of a conical piston main body 16 and a partition strip 17 which is circumferentially arranged on the side wall of the conical piston main body.

Preferably, an "H" shaped buckle 8 is integrally formed at the upper end of the piston ring mounting post 5, and second oil passing gaps 9 communicated with the oil passing groove 4 are formed at two ends of the "H" shaped buckle 8. The piston ring 6 is fixed through the H-shaped buckle 8, and the H-shaped structure is adopted, so that the strength of the H-shaped structure is improved, and meanwhile, the damping oil can conveniently pass through the H-shaped structure. Two ends of the H-shaped buckle 8 are provided with chamfered parts 10, and the piston ring 6 is installed into the piston ring installation column 5 in a forced extrusion mode through the chamfered parts 10, so that rapid installation is realized.

Preferably, a gap is reserved between the side wall of the piston ring 6 and the inner wall of the cylinder 1, and the width of the gap is 0.1mm-0.2mm, so that the phenomenon that the piston ring 6 is clamped due to over-tight connection between the piston ring 6 and the inner wall of the cylinder 1 is prevented.

Preferably, the front end of the piston ring 6 is provided with a positioning groove 11, and when the piston ring is installed, the positioning groove 11 faces outwards to prevent the piston ring 6 from being reversely installed.

Preferably, the section of the piston ring mounting column 5 is square, the piston ring 6 is supported by four edges of the square, so that the piston ring 6 is more stable, and an oil clearance is formed between the side face and the piston ring 6.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. The utility model provides a novel damping rod, includes cylinder body (1), establishes and be equipped with piston rod (2) in cylinder body (1) and establish piston (3) of piston rod (2) front end, piston (3) are gone up and are equipped with one main oilhole (12), its characterized in that at least: the lateral wall of piston (3) is equipped with a set of circumference and arranges toper and crosses oil groove (4), and is equipped with stereoplasm piston ring (6) on front end integrated into one piece's piston ring erection column (5), piston ring (6) with be equipped with between piston ring erection column (5) with cross oil clearance (7) are crossed to the first of oil groove (4) intercommunication.

2. The novel dampening bar of claim 1, wherein: piston ring erection column (5) upper end integrated into one piece has "H" type buckle (8), "H" type buckle (8) both ends be equipped with cross oil clearance (9) are crossed to the second of oil groove (4) intercommunication.

3. The novel dampening bar of claim 2 wherein: two ends of the H-shaped buckle (8) are provided with chamfered parts (10), and the piston ring (6) is installed into the piston ring mounting column (5) in a forced extrusion mode.

4. The novel dampening bar of claim 1, wherein: and a gap is reserved between the side wall of the piston ring (6) and the inner wall of the cylinder body (1).

5. The novel dampening bar of claim 1, wherein: the front end of the piston ring (6) is provided with a positioning groove (11).

6. The novel dampening bar of claim 1, wherein: the section of the piston ring mounting column (5) is square.