CN212928619U

CN212928619U - Time delay nitrogen spring pipeline

Info

Publication number: CN212928619U
Application number: CN202021970538.2U
Authority: CN
Inventors: 杜丰政
Original assignee: Suzhou Stork Precision Machinery Co ltd
Current assignee: Suzhou Stork Precision Machinery Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-04-09
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a belong to the technical field of springs, in particular to a time-delay nitrogen-gas spring pipeline, which comprises a body, wherein a movable groove is longitudinally arranged at the middle part of the upper part in the body, an air cavity is arranged at the lower part in the body, a piston sleeve is inserted in the movable groove, a piston rod is inserted in the middle part in the piston sleeve, the bottom of the piston rod is connected with a piston block, the left side and the right side in the air cavity are connected with the left side and the right side wall in the air cavity, the air cavity is divided into an upper cavity and a lower cavity, one-way valves I are respectively arranged at the left side and the right side in the piston block, a slot is longitudinally arranged at the middle part in the piston rod, a piston column is inserted in the slot, a hollow pipeline is longitudinally arranged at the middle part in the piston column, the damage to the workpiece on the die is effectively reduced when the piston rod rebounds, and the problem of quick rebounding is solved.

Description

Time delay nitrogen spring pipeline

Technical Field

The utility model relates to a spring technical field specifically is a time delay nitrogen spring pipeline.

Background

The nitrogen spring is a component with an elastic function, the component is called a nitrogen cylinder or a gas spring, and is called a nitrogen spring for short, and a device for converting pressure has the characteristic of constant elastic pressure, the size is small, the space of a die can be saved, the quantity of the springs can be reduced due to large elasticity, the service life is long, and the maintenance frequency of the die can be reduced, so the total cost of the die is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a time delay nitrogen gas spring pipeline to solve and to provide in the above-mentioned background art because inertia can't carry out slow return stroke, thereby cause certain damage to the work piece to on the mould easily, lead to the problem that the mould can't be used.

In order to achieve the above object, the utility model provides a following technical scheme: a time-delay nitrogen-gas spring pipeline comprises a body, wherein a movable groove is longitudinally formed in the middle of the upper portion in the body, an air cavity is arranged below the body, a piston sleeve is inserted in the movable groove, a piston rod is inserted in the middle of the piston sleeve, the bottom of the piston rod is connected with a piston block, the left side and the right side of the piston block are connected with the left side wall and the right side wall in the air cavity, the air cavity is divided into an upper cavity and a lower cavity, a first check valve is mounted on each of the left side and the right side of the piston block, a slot is longitudinally formed in the middle of the piston rod, a piston column is inserted in the slot, a hollow pipeline is longitudinally formed in the middle of the piston column and communicated with the slot, a second check valve is mounted on each of the left side and the right side of the bottom in the, the gas outlet pipeline right side is communicated with the hollow pipeline, the bottom right side in the body is provided with a gas inlet pipeline, the gas inlet pipeline right side is connected with a one-way gas valve, the one-way gas valve is installed on the left side of the sealing bolt, and the gas inlet pipeline is communicated with the lower cavity.

Preferably, all be equipped with the dust cover above and below in the activity inslot, the inner wall of dust cover and the outer wall laminating of piston sleeve, the outer wall of dust cover and the inner wall laminating in activity groove, the movable inslot mid-mounting has the jump ring.

Preferably, a dust ring, a first guide ring, a first sealing ring and a second guide ring are sequentially arranged in the piston sleeve from top to bottom, and the inner walls of the dust ring, the first guide ring, the first sealing ring and the second guide ring are all attached to the outer wall of the piston rod.

Preferably, a second sealing ring is arranged above and below the joint of the left side and the right side of the piston block and the air cavity.

Preferably, the middle bottom in the piston rod is provided with a third guide ring and a third sealing ring, and the inner walls of the third guide ring and the third sealing ring are attached to the outer wall of the piston column.

Compared with the prior art, the beneficial effects of the utility model are that:

1) when the piston rod rebounds, the first check valve is opened, so that gas in the lower cavity enters the upper cavity, the piston rod moves downwards slowly, the pressure intensity in the upper cavity and the pressure intensity in the lower cavity change accordingly, when the piston block contacts the bottom of the air cavity, the piston block cannot move upwards due to the pressure in the upper cavity, the piston rod stops moving, the second check valve is opened, the gas in the upper cavity enters the slot through the second check valve, enters the hollow pipeline from the slot, enters the air outlet pipeline from the hollow pipeline and is discharged from the sealing ring, at the moment, the air inlet pipeline enters air, the piston rod can ascend slowly, and the slow return delay effect is good.

2) The damage to the workpiece on the die is effectively reduced when the piston rod rebounds, and the problem of quick rebounding is solved.

Drawings

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

FIG. 2 is an enlarged schematic view of the utility model at A;

fig. 3 is an enlarged schematic view of the position B of the present invention.

In the figure: the sealing device comprises a body 1, a piston sleeve 2, a piston rod 3, a dust cover 4, a clamp spring 5, an upper cavity 6, a lower cavity 7, a check valve II 8, a sealing ring II 9, a check valve I10, a piston column 11, a slot 12, a hollow pipeline 13, an air outlet pipeline 14, a sealing ring 15, an air inlet pipeline 16, a sealing bolt 17, a check air valve 18, a guide ring III 19, a sealing ring III 20, a dust cover 21, a guide ring I22 and a sealing ring I23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-3, the present invention provides a technical solution: a time-delay nitrogen gas spring pipeline comprises a body 1, wherein a movable groove is longitudinally formed in the middle of the upper portion in the body 1, an air cavity is arranged below the body 1, a piston sleeve 2 is inserted in the movable groove, a piston rod 3 is inserted in the middle of the piston sleeve 2, a piston block is connected to the bottom of the piston rod 3, the left side and the right side of the piston block are connected with the left side wall and the right side wall in the air cavity and divide the air cavity into an upper cavity 6 and a lower cavity 7, one-way valves 10 are respectively arranged on the left side and the right side in the piston block, when the piston rod 3 rebounds, the one-way valves 10 are opened, so that air in the lower cavity 7 enters the upper cavity 6, the piston rod 3 slowly moves downwards, the pressure intensity in the upper cavity 6 and the pressure intensity in the lower cavity 7 change accordingly, when the piston block is contacted with the, a slot 12 is longitudinally formed in the middle of the interior of the piston rod 3, a piston column 11 is inserted into the slot 12, a hollow pipeline 13 is longitudinally formed in the middle of the interior of the piston column 11, the hollow pipeline 13 is communicated with the slot 12, check valves II 8 are respectively mounted on the left side and the right side of the bottom of the piston rod 3, the check valves II 8 are opened, gas in the upper chamber 6 enters the slot 12 through the check valves II 8, a sealing ring 15 is mounted on the left side of the bottom of the body 1, a gas outlet pipeline 14 is arranged in the middle of the bottom of the body 1, the left side of the gas outlet pipeline 14 is connected with the right side of the sealing ring 15, the right side of the gas outlet pipeline 14 is communicated with the hollow pipeline 13, the gas enters the hollow pipeline 13 from the slot 12, enters the gas outlet pipeline 14 from the hollow pipeline 13 and is discharged from the sealing ring 15, the air inlet pipeline 16 is used for air inlet, the piston rod 3 can slowly rise, the one-way air valve 18 is installed on the left side of the sealing bolt 17, and the air inlet pipeline 16 is communicated with the lower cavity 7.

Wherein, all be equipped with dust cover 4 above and below in the activity inslot, the inner wall of dust cover 4 and the outer wall laminating of piston sleeve 2 prevent that the dust from getting into, the outer wall of dust cover 4 and the inner wall laminating in activity groove, the movable inslot mid-mounting has jump ring 5, the axial motion of restriction piston rod 3.

By last dust ring 21, guide ring one 22, sealing ring one 23 and guide ring two of being equipped with in proper order under to in the piston sleeve 2, the inner wall of dust ring 21, guide ring one 22, sealing ring one 23, guide ring two all with the outer wall laminating of piston rod 3, dust ring 21 prevents the entering of dust, guide ring one 22 plays the effect of direction, and sealing ring one 23 makes the leakproofness better between piston sleeve 2 and the piston rod 3.

And a second sealing ring 9 is arranged above and below the joint of the left side and the right side of the piston block and the air cavity, and plays a role in sealing.

The middle bottom in the piston rod 3 is provided with a third guide ring 19 and a third sealing ring 20, and the inner walls of the third guide ring 19 and the third sealing ring 20 are attached to the outer wall of the piston column 11.

The working principle is as follows: when the piston rod 3 rebounds, the first check valve 10 is opened, so that the gas in the lower cavity 7 enters the upper cavity 6, the piston rod 3 slowly moves downwards, the pressure intensity in the upper cavity 6 and the pressure intensity in the lower cavity 7 change accordingly, when the piston block contacts the bottom of the gas cavity, the piston block cannot move upwards due to the pressure in the upper cavity 6, the piston rod 3 stops moving, the second check valve 8 is opened, the gas in the upper cavity 6 enters the slot 12 through the second check valve 8, enters the hollow pipeline 13 from the slot 12, enters the gas outlet pipeline 14 from the hollow pipeline 13 and is discharged from the sealing ring 15, at the moment, the gas inlet pipeline 16 admits gas, and the piston rod 3 can slowly rise.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a time delay nitrogen gas spring pipeline, includes body (1), its characterized in that: a movable groove is longitudinally formed in the middle of the upper portion in the body (1), an air cavity is arranged below the body (1), a piston sleeve (2) is inserted in the movable groove, a piston rod (3) is inserted in the middle of the piston sleeve (2), a piston block is connected to the bottom of the piston rod (3), the left side and the right side of the piston block are connected with the left side wall and the right side wall in the air cavity, the air cavity is divided into an upper cavity (6) and a lower cavity (7), check valves I (10) are respectively installed on the left side and the right side in the piston block, a slot (12) is longitudinally formed in the middle of the piston rod (3), a piston column (11) is inserted in the slot (12), a hollow pipeline (13) is longitudinally formed in the middle of the piston column (11), the hollow pipeline (13) is communicated with the slot (12), and check valves II (8, sealing ring (15) are installed on bottom left side in body (1), bottom middle part is equipped with pipeline (14) of giving vent to anger in body (1), pipeline (14) left side of giving vent to anger is connected with sealing ring (15) right side, pipeline (14) right side of giving vent to anger and well hollow pipeline (13) intercommunication, bottom right side is equipped with admission line (16) in body (1), admission line (16) right side is connected with one-way pneumatic valve (18), one-way pneumatic valve (18) are installed in sealing bolt (17) left side, admission line (16) and lower chamber (7) intercommunication.

2. A delayed nitrogen gas spring pipe as claimed in claim 1, wherein: the upper portion and the lower portion in the movable groove are both provided with a dust cover (4), the inner wall of the dust cover (4) is attached to the outer wall of the piston sleeve (2), the outer wall of the dust cover (4) is attached to the inner wall of the movable groove, and a clamp spring (5) is mounted in the middle of the movable groove.

3. A delayed nitrogen gas spring pipe as claimed in claim 1, wherein: the piston is characterized in that a dustproof ring (21), a first guide ring (22), a first sealing ring (23) and a second guide ring are sequentially arranged in the piston sleeve (2) from top to bottom, and the inner walls of the dustproof ring (21), the first guide ring (22), the first sealing ring (23) and the second guide ring are all attached to the outer wall of the piston rod (3).

4. A delayed nitrogen gas spring pipe as claimed in claim 1, wherein: and a second sealing ring (9) is arranged above and below the joint of the left side and the right side of the piston block and the air cavity.

5. A delayed nitrogen gas spring pipe as claimed in claim 1, wherein: the middle bottom in the piston rod (3) is provided with a third guide ring (19) and a third sealing ring (20), and the inner walls of the third guide ring (19) and the third sealing ring (20) are attached to the outer wall of the piston column (11).