阅读说明：本技术 一种气弹簧悬停锁止结构 (Air spring hovering locking structure ) 是由 黄震 周惠妮 毛志成 于 2019-10-08 设计创作，主要内容包括：本发明涉及气弹簧技术领域,具体为一种气弹簧悬停锁止结构,包括调节阀芯,其包括导向头一,开有装配密封圈一的密封槽一；导向头二,开有装配密封圈二的密封槽二,其直径与所述导向头一的直径相同；颈缩体,轴向一端与所述导向头一轴向一端连接、轴向另一端与所述导向头二连接,其直径小于所述导向头一的直径；调节杆,轴向一端与所述导向头一的轴向另一端连接。本申请改进了调节阀芯和活塞的结构,将结构复杂的活塞改成结构简单、加工方便的活塞,并在调节阀芯上加入密封槽,用调节阀芯本身的结构给密封圈的位置做限定,省去限定密封圈用的垫片,本申请在保留气弹簧原有功能的基础上简化了活塞和调节阀芯结构。(The invention relates to the technical field of gas springs, in particular to a gas spring hovering locking structure which comprises an adjusting valve core, a first valve body and a second valve body, wherein the adjusting valve core comprises a first guide head and a first sealing groove which is provided with a first assembling sealing ring; a second guide head is provided with a second sealing groove for assembling a second sealing ring, and the diameter of the second guide head is the same as that of the first guide head; the neck-shrinking body is connected with one axial end of the first guide head and the other axial end of the first guide head, and the diameter of the neck-shrinking body is smaller than that of the first guide head; and one axial end of the adjusting rod is connected with the other axial end of the first guide head. The structure of adjusting case and piston has been improved to this application, changes the piston that the structure is complicated into simple structure, processing convenient piston to add the seal groove on adjusting the case, do the injecing for the position of sealing washer with the structure of adjusting case itself, save the gasket that injecing the sealing washer usefulness, this application has simplified piston and regulation case structure on the basis that remains the original function of air spring.)

1. The utility model provides a gas spring locking structure that hovers which characterized in that: comprises that

A regulating valve core (5) comprising

The first guide head (51) is provided with a first sealing groove for assembling the first sealing ring;

a second guide head (52) provided with a second sealing groove for assembling a second sealing ring, and the diameter of the second sealing groove is the same as that of the first guide head (51);

the neck-down body (53) has one axial end connected with one axial end of the first guide head (51) and the other axial end connected with the second guide head (52), and the diameter of the neck-down body is smaller than that of the first guide head (51);

and one axial end of the adjusting rod (6) is connected with the other axial end of the first guide head (51).

2. A gas spring hover lock structure as claimed in claim 1, wherein: also comprises

The hollow piston rod (7) is internally provided with a rod cavity allowing the adjusting rod (6) to move axially and a valve core cavity accommodating the adjusting valve core (5) and communicated with the rod cavity, and the diameter of the valve core cavity is larger than that of the rod cavity;

the piston (8) is connected with the outer wall of the end, provided with the valve core cavity, of the hollow piston rod (7), and one axial side of the piston is a recovery cavity while the other axial side of the piston is a compression cavity; the hollow piston rod (7) is provided with a circulation hole (71) which is matched with the adjusting valve core (5) to communicate the recovery cavity with the compression cavity.

3. A gas spring hover lock structure as claimed in claim 2, wherein: also comprises

The inner wall of one end of the axis of the outer cylinder (1) is provided with a first limiting bulge (11), and the inner wall of the other end of the axis of the outer cylinder is provided with a second limiting bulge (12);

the outer wall of the guider (2) is sleeved with the inner wall of one axial end of the outer barrel (1), the outer wall of the guider is provided with a first limiting groove (21) which is matched and connected with the first limiting bulge (11) and a third sealing groove for assembling a sealing ring III, the inner wall of the guider is sleeved with the outer wall of the hollow piston rod (7), and the inner wall of the guider is provided with a fourth sealing groove for assembling a sealing ring IV;

the connector (3) is connected with the inner wall of the other axial end of the outer barrel (1), and a second limiting groove (31) which is matched and connected with the second limiting bulge (12) and a fifth sealing groove for assembling a fifth sealing ring are formed in the outer wall of the connector;

the outer peripheral wall of the piston (8) is in contact with the inner wall of the outer barrel (1) and is provided with a sealing groove six for assembling a sealing ring six.

4. A gas spring hover lock structure as claimed in claim 3, wherein: the connector (3) is further provided with an axial limiting bulge (32) matched with the outer barrel (1) for use.

5. A gas spring hover lock structure as claimed in claim 3, wherein: also including isolating oil and gas

The floating piston (9) is arranged between the piston (8) and the connectors (3), and the peripheral wall of the floating piston is connected with the inner wall of the outer cylinder (1) in a sealing manner.

6. A gas spring hover lock structure as claimed in claim 3, wherein: also including isolating oil and gas

Floating piston (9), locate director (2) with between piston (8), the periphery wall with urceolus (1) inner wall sealing connection, internal perisporium with hollow piston rod (7) outer wall sealing connection.

7. A gas spring hover lock structure as claimed in claim 1, wherein: the axial length of the first guide head (51) is larger than that of the second guide head (52).

8. A gas spring hover lock structure as claimed in claim 2, wherein: also comprises an outer cylinder body (13) and an inner cylinder body (14).

9. A gas spring hover lock structure as defined in claim 8, wherein: and a floating piston (9) is arranged between the outer cylinder (13) and the inner cylinder (14).

10. A gas spring hover lock structure as claimed in claim 1, wherein: also comprises

A piston (8) arranged opposite to the regulating valve core (5);

a piston rod (72) having one end connected to the piston (8);

an outer cylinder (13);

an inner cylinder (14); and a floating piston (9) is arranged between the outer cylinder (13) and the inner cylinder (14).

Technical Field

The invention relates to the technical field of gas springs, in particular to a gas spring hovering locking structure.

Background

The existing gas spring locking structure is characterized in that an adjusting rod is arranged inside a hollow piston rod and abuts against an adjusting valve core at the bottom of the hollow piston rod, the adjusting valve core is always tightly pressed on a piston due to high air pressure inside a gas spring at ordinary times, direct oil-gas exchange between a recovery cavity and a compression cavity is separated, and the gas spring is difficult to compress under the condition. When the adjusting rod is pressed down and the adjusting valve core is pushed open to enable the adjusting valve core not to be attached to the piston any more, the oil-gas exchange channel between the recovery cavity and the compression cavity is opened, and the gas spring can be compressed very easily. The existing structure has the defects that a large number of valve plates and a complex piston structure are needed for determining the positions of the regulating valve core and the O-shaped ring for sealing, so that the number of parts is too large, the process is too complex, and the product consistency is difficult to control during assembly.

Disclosure of Invention

The invention provides a gas spring hovering locking structure aiming at the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: an air spring hovering locking structure comprises

A regulating valve core, which comprises

The first guide head is provided with a first sealing groove for assembling a first sealing ring;

a second guide head is provided with a second sealing groove for assembling a second sealing ring, and the diameter of the second guide head is the same as that of the first guide head;

the neck-shrinking body is connected with one axial end of the first guide head and the other axial end of the first guide head, and the diameter of the neck-shrinking body is smaller than that of the first guide head;

and one axial end of the adjusting rod is connected with the other axial end of the first guide head.

Preferably, it further comprises

The hollow piston rod is internally provided with a rod cavity allowing the adjusting rod to move axially and a valve core cavity accommodating the adjusting valve core and communicated with the rod cavity, and the diameter of the valve core cavity is larger than that of the rod cavity;

the piston is connected with the outer wall of the hollow piston rod at the end provided with the valve core cavity, one axial side of the piston is a recovery cavity, and the other axial side of the piston is a compression cavity; the hollow piston rod is provided with a circulation hole which is matched with the adjusting valve core to communicate the recovery cavity and the compression cavity.

Preferably, it further comprises

The inner wall of one end of the axis is provided with a first limiting bulge, and the inner wall of the other end of the axis is provided with a second limiting bulge;

the outer wall of the guider is sleeved with the inner wall of one axial end of the outer barrel, the outer wall of the guider is provided with a first limiting groove matched and connected with the first limiting bulge and a third sealing groove for assembling a sealing ring III, the inner wall of the guider is sleeved with the outer wall of the hollow piston rod, and the inner wall of the guider is provided with a fourth sealing groove for assembling a sealing ring IV;

the connector is connected with the inner wall of the other axial end of the outer barrel, and the outer wall of the connector is provided with a second limiting groove in matched connection with the second limiting protrusion and a fifth sealing groove for assembling a fifth sealing ring;

the piston periphery wall with urceolus inner wall contact, and be equipped with assembly sealing washer six seal groove six.

Preferably, the connector is further provided with an axial limiting protrusion matched with the outer barrel for use.

Preferably, the method also comprises oil and gas isolation

The floating piston is arranged between the piston and the connectors, and the peripheral wall of the floating piston is connected with the inner wall of the outer barrel in a sealing mode.

Preferably, the method also comprises oil and gas isolation

The piston floats, locate the director with between the piston, the periphery wall with urceolus inner wall sealing connection, internal perisporium with hollow piston rod outer wall sealing connection.

Preferably, the axial length of the first guide head is greater than the axial length of the second guide head.

Preferably, the device also comprises an outer cylinder and an inner cylinder.

Preferably, a floating piston is arranged between the outer cylinder and the inner cylinder.

Preferably, it further comprises

The piston is arranged opposite to the regulating valve core;

one end of the piston rod is connected with the piston;

an outer cylinder;

an inner cylinder; and a floating piston is arranged between the outer cylinder and the inner cylinder.

The invention has the beneficial effects that the structure of the adjusting valve core and the piston is improved, the piston with a complex structure is changed into the piston with a simple structure and convenient processing, the sealing groove is added on the adjusting valve core, the position of the sealing ring is limited by the structure of the adjusting valve core, and the gasket for limiting the sealing ring is saved.

Drawings

FIG. 1 is a schematic structural view of a gas spring in a locked state according to the present application;

FIG. 2 is a schematic view of the gas spring of the present application in a flow-through condition;

FIG. 3 is a schematic structural view of the adjustment valve core and the hollow piston rod in FIG. 1;

FIG. 4 is a schematic structural view of the adjustment valve core and the hollow piston rod in FIG. 2;

FIG. 5 is an exploded view of a gas spring according to the present application;

FIG. 6 is a cross-sectional view of a gas spring of the present application;

FIG. 7 is an enlarged partial view of the regulator spool of FIG. 6;

FIG. 8 is a schematic view of a gas spring hover lock configuration with a movable piston;

FIG. 9 is a schematic view of a gas spring hover lock configuration in a dual barrel configuration;

FIG. 10 is a schematic view of a gas spring hover lock configuration with a moving end separated from a control end.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.