CN214945981U

CN214945981U - Nitrogen spring with optimized guide sleeve structure

Info

Publication number: CN214945981U
Application number: CN202121205620.0U
Authority: CN
Inventors: 钟海枫; 孟振生
Original assignee: Dake Guangdong Precision Technology Co ltd
Current assignee: Dake Guangdong Precision Technology Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-11-30
Anticipated expiration: 2031-06-01

Abstract

The utility model relates to the technical field of nitrogen springs, in particular to a nitrogen spring with an optimized guide sleeve structure, which comprises a cylinder barrel, a guide sleeve fixed inside the cylinder barrel and a plunger rod slidably connected inside the guide sleeve; a Y-shaped ring and a guide ring are sleeved on the rod body of the plunger rod; a positioning groove capable of embedding the Y-shaped ring and the guide ring is formed in the side wall of the guide sleeve; the Y-shaped ring and the guide ring are both embedded into the positioning groove; the diameter of the outer circle of the plunger rod, the diameter of the inner ring of the Y-shaped ring and the diameter of the inner ring of the guide ring are equal. Use the utility model discloses the time, can realize packing into in step and improve frock efficiency, shorten the total height of uide bushing, except save material, can make nitrogen gas spring's inner space bigger, the elasticity curve is gentler.

Description

Nitrogen spring with optimized guide sleeve structure

Technical Field

The utility model relates to a nitrogen spring technical field, in particular to optimize nitrogen spring of uide bushing structure.

Background

The nitrogen spring special for mould (called die nitrogen spring or nitrogen cylinder for short) is a new type elastic component using high-pressure nitrogen as working medium, and its volume is small, elasticity is large, stroke is long, working is stable, its manufacture is accurate, service life is long (one million times), elastic curve is smooth, and it has no need of pre-tightening, etc..

In the existing nitrogen gas spring structure, a positioning groove for installing a guide ring is formed in the inner side wall of a guide sleeve, and a sealing ring positioning groove for sealing between a plunger rod and the guide sleeve is also formed in the inner side wall of the guide sleeve, so that a plurality of groove positions are required to be formed in the inner side wall of the guide sleeve, the plurality of groove positions are difficult to process, and the guide sleeve is longer in length; when frock sealing washer and guide ring, need step by step installation, the frock is efficient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure to prior art's defect and not enough, the convenient nitrogen spring who optimizes the uide bushing structure of frock.

In order to achieve the above object, the utility model adopts the following technical scheme:

the nitrogen spring with the optimized guide sleeve structure comprises a cylinder barrel, a guide sleeve fixed inside the cylinder barrel and a plunger rod slidably connected inside the guide sleeve; a Y-shaped ring and a guide ring are sleeved on the rod body of the plunger rod; a positioning groove capable of embedding the Y-shaped ring and the guide ring is formed in the side wall of the guide sleeve; the Y-shaped ring and the guide ring are both embedded into the positioning groove; the diameter of the outer circle of the plunger rod, the diameter of the inner ring of the Y-shaped ring and the diameter of the inner ring of the guide ring are equal.

Furthermore, a circlip positioning groove surrounding a circle is formed in the inner side wall of the cylinder barrel; the outer side wall of the guide sleeve is provided with a circle of concave shape; the concave shape extends to the top surface of the guide sleeve; the clamp spring positioning groove is clamped with a clamp spring; after the guide sleeve is inserted into the cylinder barrel, the clamp spring is pressed on the bottom end face of the concave type.

Furthermore, a dustproof ring positioning groove is formed in the outer side wall of the concave type; an outer dustproof ring is sleeved outside the dustproof ring positioning groove; the outer dust ring is sealed between the inner side wall of the cylinder barrel and the concave side wall.

After the structure is adopted, the utility model discloses beneficial effect does: the nitrogen spring with the optimized guide sleeve structure comprises a cylinder barrel, a guide sleeve fixed inside the cylinder barrel and a plunger rod slidably connected inside the guide sleeve; a Y-shaped ring and a guide ring are sleeved on the rod body of the plunger rod; a positioning groove capable of embedding the Y-shaped ring and the guide ring is formed in the side wall of the guide sleeve; the Y-shaped ring and the guide ring are both embedded into the positioning groove; the diameter of the outer circle of the plunger rod, the diameter of the inner ring of the Y-shaped ring and the diameter of the inner ring of the guide ring are equal. Use the utility model discloses the time, the uide bushing only sets up a constant head tank when installing Y type circle and guide ring, with Y type circle and guide ring embedding constant head tank, not only can reduce the processing degree of difficulty of the inside constant head tank of constant head tank, moreover when the frock of Y type circle and guide ring, can realize packing into in step and improve frock efficiency, shorten the total height of uide bushing, except save material, can make nitrogen spring's whole to be done thinly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded view of the present invention;

description of reference numerals:

1. a plunger rod; 2. an outer dust ring; 3. a clamp spring; 4. an O-shaped ring; 5. a cylinder barrel;

501. a clamp spring positioning groove; 6. a Y-shaped ring; 7. a guide ring; 8. a guide sleeve; 801. a concave shape;

801a, a dust ring positioning groove; 802. positioning a groove; 9. an inner dust ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 2, the nitrogen spring of the optimized guide sleeve structure of the present invention comprises a cylinder 5, a guide sleeve 8 fixed inside the cylinder 5, and a plunger rod 1 slidably connected inside the guide sleeve 8; a Y-shaped ring 6 and a guide ring 7 are sleeved on the rod body of the plunger rod 1; a positioning groove 802 capable of embedding the Y-shaped ring 6 and the guide ring 7 is formed in the side wall of the guide sleeve 8; the Y-shaped ring 6 and the guide ring 7 are both embedded into the positioning groove 802; the diameter of the outer circle of the plunger rod 1, the diameter of the inner ring of the Y-shaped ring 6 and the diameter of the inner ring of the guide ring 7 are equal. Use the utility model discloses the time, uide bushing 8 is when installation Y type circle 6 and guide ring 7, only sets up a constant head tank 802, imbeds constant head tank 802 with Y type circle 6 and guide ring 7, not only can reduce the processing degree of difficulty of the inside constant head tank of constant head tank 802, moreover when Y type circle 6 and guide ring 7's frock, can realize the synchronous improvement frock efficiency of packing into, shorten the total height of uide bushing 8, except save material, can make nitrogen spring's whole to be done thinly.

As a preferred mode of the present invention, a circlip positioning groove 501 surrounding a circle is provided on the inner side wall of the cylinder 5; a circle of concave 801 is arranged on the outer side wall of the guide sleeve 8; the concave shape 801 extends to the top surface of the guide sleeve 8; the clamp spring positioning groove 501 is clamped with a clamp spring 3; after the guide sleeve 8 is inserted into the cylinder 5, the clamp spring 3 is tightly pressed on the bottom end surface of the concave 801; the uide bushing 8 blocks through jump ring 3, makes it can not extract, but the uide bushing 8 can reverse the mounting means who impresses through jump ring 3, connects firmly, easy dismounting moreover.

As a preferred mode of the present invention, a dust ring positioning groove 801a is disposed on the outer side wall of the concave shape 801; an outer dustproof ring 2 is sleeved outside the dustproof ring positioning groove 801 a; the outer dust ring 2 is sealed between the inner side wall of the cylinder 5 and the side wall of the concave 801; the inside wall of uide bushing 8 is provided with interior dust ring 9, and the lateral wall of uide bushing 8 is provided with O type circle 4 for it is sealed, prevent gas leakage.

When the utility model is used, the guide sleeve is only provided with one positioning groove when the Y-shaped ring and the guide ring are installed, and the Y-shaped ring and the guide ring are embedded into the positioning groove, so that the processing difficulty of the positioning groove in the positioning groove can be reduced, and the synchronous installation can be realized to improve the tool efficiency and shorten the total height of the guide sleeve when the Y-shaped ring and the guide ring are assembled, so that the internal space of the nitrogen spring is larger and the elastic curve is more gentle except for material saving; the guide sleeve is blocked by the clamp spring and cannot be pulled out, but the guide sleeve can be reversely pressed in by the installation mode of the clamp spring, so that the connection is stable, and the disassembly and the assembly are convenient; the inside wall of uide bushing is provided with interior dust ring, and the lateral wall of uide bushing is provided with O type circle for it is sealed, prevent gas leakage.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. A nitrogen spring with an optimized guide sleeve structure comprises a cylinder barrel (5), a guide sleeve (8) fixed inside the cylinder barrel (5) and a plunger rod (1) connected inside the guide sleeve (8) in a sliding manner; the method is characterized in that: a Y-shaped ring (6) and a guide ring (7) are sleeved on the rod body of the plunger rod (1); a positioning groove (802) capable of embedding the Y-shaped ring (6) and the guide ring (7) is formed in the side wall of the guide sleeve (8); the Y-shaped ring (6) and the guide ring (7) are embedded into the positioning groove (802); the diameter of the outer circle of the plunger rod (1), the diameter of the inner ring of the Y-shaped ring (6) and the diameter of the inner ring of the guide ring (7) are equal.

2. The nitrogen spring for optimizing the structure of the guide sleeve as claimed in claim 1, wherein: a circlip positioning groove (501) surrounding a circle is formed in the inner side wall of the cylinder barrel (5); a circle of concave shapes (801) are arranged on the outer side wall of the guide sleeve (8) in a surrounding manner; the concave shape (801) extends to the top surface of the guide sleeve (8); the clamp spring positioning groove (501) is clamped with a clamp spring (3); after the guide sleeve (8) is inserted into the cylinder barrel (5), the clamp spring (3) is pressed on the bottom end face of the concave type (801).

3. The nitrogen spring for optimizing the structure of the guide sleeve as claimed in claim 2, wherein: a dustproof ring positioning groove (801 a) is formed in the outer side wall of the concave type (801); an outer dustproof ring (2) is sleeved outside the dustproof ring positioning groove (801 a); the outer dust ring (2) is sealed between the inner side wall of the cylinder barrel (5) and the side wall of the concave type (801).