CN209780561U

CN209780561U - Damper

Info

Publication number: CN209780561U
Application number: CN201821202878.3U
Authority: CN
Inventors: 桑旭初
Original assignee: Zhongshan Yi Ya Hardware Technology Co Ltd
Current assignee: Zhongshan Yi Ya Hardware Technology Co Ltd
Priority date: 2018-01-22
Filing date: 2018-07-26
Publication date: 2019-12-13
Anticipated expiration: 2028-07-26
Also published as: CN108643744A

Abstract

the utility model provides a small in size, longe-lived and silent attenuator, including cylinder body and activity stretch out and draw back in piston rod in the cylinder body, cylinder body one end seals and the other end supplies the piston rod penetrates, the piston rod penetrates the one end of cylinder body is equipped with moves the piston, move the piston with be equipped with between the blind end of cylinder body and move the spring, move the piston with be equipped with protection device between the other end of cylinder body, protection device with it has damping oil to fill between the blind end of cylinder body, it is equipped with the through-hole on the piston to move, the through-hole is the taper type and is close to it is less to move the bore of spring one end, protection device include protection piston and roof pressure in the protection piston with protection spring between the cylinder body other end.

Description

Damper

[ technical field ] A method for producing a semiconductor device

The utility model relates to a damper.

[ background of the invention ]

At present, in order to avoid the noise generated by the collision when the door and window are closed, even the door and window are damaged by the collision, the damping buffer is added to avoid the occurrence of the above situation when the door and window are installed, and the damping buffer is also rather loved by consumers.

However, the existing damping buffer is buffered by an external tension spring, and has the following disadvantages: 1. the tension spring is easy to generate over fatigue, so that the service life of the tension spring is shortened, and the buffering effect is reduced; 2. the external tension spring is easy to rust, so that the service life of the tension spring is reduced and the buffering effect is reduced; 3. the extension spring is externally arranged to generate larger noise.

[ Utility model ] content

The to-be-solved technical problem of the utility model is to provide a small in size, longe-lived and silent attenuator.

The purpose of the utility model is realized like this:

The utility model provides a damper, includes cylinder body and activity flexible in piston rod in the cylinder body, cylinder body one end is sealed and the other end supplies the piston rod penetrates, the piston rod penetrates the one end of cylinder body is equipped with moves the piston, move the piston with be equipped with the movable spring between the blind end of cylinder body, move the piston with be equipped with protection device between the other end of cylinder body, protection device with it has damping oil to fill between the blind end of cylinder body, it is equipped with the through-hole on the piston to move, the through-hole is the taper type and is close to the bore of moving spring one end is less, protection device include protection piston and roof pressure in protection piston with the protection spring between the cylinder body other end.

By adopting the structure, the utility model arranges the movable spring in the cylinder body, and does not arrange a tension spring outside, so that the whole structure is small and exquisite, and the manufacturing cost is reduced; when the damping oil in the space where the first movable spring and the second movable spring are located flows into the space formed between the movable piston and the protection device, the space formed between the movable piston and the protection device is continuously compressed, so that the pressure of the cylinder body received by the section of space is maximum, and the protection device is arranged between the other end of the movable piston and the other end of the cylinder body, so that the damping oil is gradually compressed, and the hydraulic pressure of the damping oil is rapidly increased to a certain maximum value in the compression process (at the moment, the hydraulic pressure of the space formed between the movable piston and the protection device is greater than the compression deformation elastic force of the protection spring), the protection piston on the protection device starts to act and compresses the protection spring, so that the space formed between the movable piston and the protection device is increased, so that the pressure of the cylinder body received by the section of space is reduced to prevent cylinder explosion, and the service life of the.

The damper comprises a first movable spring and a second movable spring, wherein one end of the first movable spring is pressed against a movable piston, one end of the second movable spring is pressed against a closed end of a cylinder body, a spring sleeve is arranged between the first movable spring and the second movable spring, an oil through hole is formed in the spring sleeve, the movable spring is divided into the first movable spring and the second movable spring, the elasticity and the buffering capacity of the movable spring are greatly improved, and meanwhile, damping oil can cover the first movable spring and the second movable spring to avoid rusting of the movable spring through the oil through hole, so that the service life of the damper is further prolonged.

According to the damper, one end of the cylinder body is detachably connected with the end cover through which the piston rod passes, so that the protection device, the piston rod, the movable spring and other components can be disassembled, assembled and replaced.

according to the damper, the outer end of the piston rod is provided with the rod head for connecting the actuating mechanism of the door or the window.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

Fig. 3 is a schematic view of a sectional structure of the movable piston of the present invention.

[ detailed description ] embodiments

The utility model provides a damper, including cylinder body 1 and the flexible piston rod 2 in cylinder body 1 of activity, 1 one end of cylinder body seals and the other end supplies piston rod 2 to penetrate, the one end that piston rod 2 penetrated cylinder body 1 is equipped with moves piston 3, the outer end of piston rod 2 is equipped with pole head 21, it is equipped with movable spring 4 to move between the blind end of piston 3 and cylinder body 1, it is equipped with protection device 5 to move between the other end of piston 3 and cylinder body 1, it has damping oil to fill between the blind end of protection device 5 and cylinder body 1, it is equipped with through-hole 31 on the piston 3 to move, through-hole 31 is the toper type and is close to the bore of moving spring 4 one end less, protection device 5 is including protection piston 51 and the protection spring 52 of roof pressure.

The movable spring 4 comprises a first movable spring 41 and a second movable spring 42, one end of the first movable spring 41 presses the movable piston 3, one end of the second movable spring 42 presses the closed end of the cylinder 1, a spring sleeve 43 is arranged between the first movable spring 41 and the second movable spring 42, and an oil through hole 431 is formed in the spring sleeve 43.

In order to facilitate the disassembly and assembly, one end of the cylinder body 1 is screwed with an end cover 11 for the piston rod 2 to pass through.

When the utility model is used, the pushing rod head 21 makes the piston rod 2 push the movable piston 3 to move towards the direction of the movable spring 4, the piston 3 continuously compresses the space of the first movable spring 41 and the second movable spring 42 (for convenience of expression, the first space is called below) in the moving process, thereby the damping oil on the piston 3 is extruded into the other side of the movable piston 3 (the space formed between the movable piston 3 and the protection device 5, for convenience of expression, the second space is called below) through the through hole 31, because the aperture of the through hole 31 near one end of the movable spring 4 is smaller, the damping oil is rapidly extruded into the second space, thereby the hydraulic pressure in the second space is rapidly increased, the difference between the hydraulic pressure of the hydraulic pressure and the first space is basically equal to the compression elasticity generated by the first movable spring 41 and the second movable spring 42, therefore, the piston rod 3 can be easily pushed into the cylinder body 1, the above process is the action of the utility model when opening the door or window. When the piston rod 3 is pulled forcibly, under the action of a pulling force and a compression elastic force of the first movable spring 41 and the second movable spring 42, the movable piston 3 moves towards the second space, so that the second space is compressed, the damping oil in the second space is discharged into the first space 1 through the through hole 31, because the caliber of one end, close to the movable spring 4, of the through hole 31 is small, the speed of discharging the damping oil into the first space 1 is slow, so that the damping oil in the second space is gradually compressed, the hydraulic pressure of the damping oil is rapidly increased in the compression process, when the hydraulic pressure of the damping oil is increased to a certain maximum value (at this time, the hydraulic pressure of the second space is larger than the compression deformation elastic force of the protection spring 52), the protection piston 51 on the protection device 5 starts to act and compress the protection spring 52, at this time, the piston rod 3 can only slowly move outwards, at this time, the protection spring 52 generates a compression elastic force to generate a pushing force, thereby make the damping oil in the second space slowly from discharging into first space 1 through-hole 31 in, last piston rod 3 slowly promotes to the most distal end department by spring 4, first movable spring 41, second movable spring 42 and protection spring 52 elasticity reset this moment, and hydraulic pressure force in first space and the second space also reaches the balance, and above process is promptly the utility model discloses act when closing the door or closing the window and buffering.

Claims

1. The damper is characterized by comprising a cylinder body (1) and a piston rod (2) movably extending into the cylinder body (1), wherein one end of the cylinder body (1) is closed, the other end of the cylinder body (1) is used for allowing the piston rod (2) to penetrate, the piston rod (2) penetrates into one end of the cylinder body (1) and is provided with a movable piston (3), a movable spring (4) is arranged between the closed end of the cylinder body (1) and the movable piston (3), a protection device (5) is arranged between the other end of the cylinder body (1), damping oil is filled between the closed end of the cylinder body (1) and the movable piston (3), a through hole (31) is formed in the movable piston (3), the through hole (31) is conical and is close to the smaller caliber of one end of the movable spring (4), and the protection device (5) comprises a protection piston (51) and a top pressure arranged between the protection piston (51) and the protection spring (52) between the other end of the cylinder body (1) .

2. A damper according to claim 1, wherein the movable spring (4) comprises a first movable spring (41) and a second movable spring (42), one end of the first movable spring (41) presses the movable piston (3), one end of the second movable spring (42) presses the closed end of the cylinder (1), a spring sleeve (43) is arranged between the first movable spring (41) and the second movable spring (42), and an oil through hole (431) is arranged on the spring sleeve (43).

3. a damper according to claim 1 or 2, characterised in that an end cap (11) through which the piston rod (2) passes is detachably attached to one end of the cylinder (1).

4. A damper according to claim 3, characterised in that the outer end of the piston rod (2) is provided with a rod head (21).