Airtight disconnecting device with locking function and capable of achieving separation and automatic sealing

Abstract

The utility model discloses an airtight disconnecting device which has a locking function and can achieve separation and automatic sealing. The airtight disconnecting device comprises a shell, a valve element, a connector and a connector valve assembly. The valve element and the shell share the sealing face of the connector valve assembly to achieve sealing, locking control is conducted on the connector valve assembly through the steel ball, the connector valve assembly can be pulled out by overcoming the locking force of the steel ball through external force, and the connector valve assembly can be pulled out through the elastic force of the first spring. A sealing assembly formed by the valve element and the first sealing ring can be sealed with the plane of the shell. When an airplane is jetted emergently, a sealing tape on a hatch cover can be automatically separated from a sealing system on the airplane. The locking function is achieved, and the locking force is adjustable; when the system is in a normal working state, the valve core and the shell valve seat share the sealing surface of the joint valve assembly, so that the emergency hatch cover is kept sealed.

Description

Technical Field

[0001] The utility model relates to the field of mechanical structures, in particular to an airtight disconnecting device with a locking function and capable of realizing separation and automatic sealing. Background Art

[0002] The airtight disconnect device is the aircraft emergency hatch cover sealing and jettisoning system, installed on the seat mounting frame in the airtight cabin: its function is to ensure that the sealing tape on the hatch cover is automatically separated from the onboard sealing system during emergency jettisoning.

[0003] Based on functional application requirements, an airtight disconnect device with a locking function that can achieve automatic separation and sealing was designed and developed. Utility Model Content

[0004] The technical solution of the utility model is to provide an airtight disconnecting device with a locking function and capable of realizing automatic separation and sealing, so as to ensure that the sealing tape on the hatch cover is automatically separated from the onboard sealing system when the aircraft is emergency jettisoned.

[0005] A gas-tight disconnect device with a locking function that can achieve automatic separation and sealing, comprising a shell, a valve core, a joint, and a joint valve assembly; one end of the joint valve assembly is provided with a groove and is locked in one end of the shell through a steel ball, and forms a seal with the shell; the valve core is locked in the other end of the shell through the joint, and forms a seal with the shell; a spring is also provided between the valve core and the joint; the valve core forms a seal with the joint valve assembly under the elastic force of the spring; an inner hole is provided at the connecting end of the shell and the joint valve assembly, the steel ball is freely placed in the inner hole, and is pressed and adjusted by a spring two and an adjusting screw plug to achieve locking of the joint valve assembly and adjustment of the locking force; the adjusting screw plug is provided with a nut.

[0006] Furthermore, it also includes a sealing ring 1, the valve core and the sealing ring form a sealing assembly, and when the joint valve assembly is pulled out of the outlet, a seal is formed with the shell plane under the action of the elastic force of a spring 1.

[0007] Furthermore, a washer is provided between the adjusting screw plug and the nut.

[0008] Furthermore, a boss is provided on the outer side of the joint valve assembly along the circumferential direction.

[0009] Furthermore, a second sealing ring is provided between the shell and the joint connection end.

[0010] Sealing is achieved through the sealing surface of the joint valve assembly shared by the valve core and the shell, and the joint valve assembly is locked and controlled by a steel ball. The joint valve assembly can be pulled out by external force to overcome the locking force of the steel ball, and the sealing assembly formed by the valve core and the sealing ring 1 can form a seal with the shell plane through the elastic force of the spring 1; when the aircraft is ejected in an emergency, the sealing tape on the hatch cover can be automatically separated from the onboard sealing system.

[0011] Beneficial effects of the utility model:

[0012] 1) It has locking function and the locking force is adjustable;

[0013] 2) When the system is in normal working condition, the valve core and the housing valve seat share the joint valve assembly sealing surface to keep the emergency hatch cover sealed;

[0014] 3) During emergency jettisoning, external force pulls and disengages the joint valve assembly, separating the sealing tape on the hatch cover from the onboard sealing system;

[0015] 4) During emergency jettisoning, the sealing assembly formed by the valve core and the sealing ring is sealed by the spring, realizing automatic sealing of the on-board sealing system after separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 A schematic diagram of the structure provided by the utility model;

[0018] In the accompanying drawings: 1-housing, 2-valve core, 3-connector, 4-connector valve assembly, 5-steel ball, 6-spring one, 7-groove, 8-inner hole, 9-spring two, 10-adjusting screw plug, 11-nut, 12-sealing ring one, 13-washer, 14-boss, 15-sealing ring two. DETAILED DESCRIPTION

[0019] The example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present invention will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art.

[0020] See also Figure 1, including a shell 1, a valve core 2, a joint 3, and a joint valve assembly 4; one end of the joint valve assembly 4 is provided with a groove 7 and is locked in one end of the shell 1 through a steel ball 5, and forms a seal with the shell 1; the valve core 2 is locked in the other end of the shell 1 through the joint 3, and forms a seal with the shell 1; a spring 6 is also provided between the valve core 2 and the joint 3; the valve core 2 forms a seal with the joint valve assembly 4 under the elastic force of the spring 6; an inner hole 8 is provided at the connecting end of the shell 1 and the joint valve assembly 4, and the steel ball 5 is freely placed in the inner hole 8, and is tightened and adjusted by a spring 9 and an adjusting screw plug 10 to realize the locking of the joint valve assembly 4 and the adjustment and control of the locking force; the adjusting screw plug 10 is provided with a nut 11,

[0021] A washer 13 is further provided between the adjusting screw plug 10 and the nut 11 .

[0022] It also includes a sealing ring 12. The valve core 2 and the sealing ring 12 form a sealing assembly. When the joint valve assembly 4 is pulled out of the outlet, a seal is formed with the plane of the shell 1 under the elastic force of the spring 6.

[0023] A boss 14 is also provided on the outer side of the joint valve assembly 4 along the circumferential direction, so that the joint valve assembly 12 can overcome the locking force of the steel ball 11 and be pulled out under the action of external force.

[0024] The connection end between the housing 1 and the joint 3 is also provided with a sealing ring 15 to form a seal.

[0025] The sealing assembly formed by the valve core 2 and the sealing ring 12 provides sealing force through a spring 6. When the product is in the installed state, the joint valve assembly 4 contacts the valve core 2, and a seal is formed under the sealing force provided by the spring 6; the joint valve assembly 4 is in a locked state under the locking action of the steel ball 5, and the valve seat of the shell 1 contacts the sealing surface of the joint valve assembly 4 to form a seal, so that the emergency hatch cover remains sealed.

[0026] During emergency jettisoning, external force pulls the joint valve assembly 4, overcomes the locking force of the steel ball 5, and pulls out the joint valve assembly 4, thereby separating the sealing tape on the hatch cover from the onboard sealing system; the sealing assembly formed by the valve core 2 and the sealing ring 1 is closed under the action of the spring 1 6, thereby realizing automatic sealing of the onboard sealing system after separation.

[0027] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Any modification or equivalent substitution made to the technical solution of the utility model by ordinary technicians in this field shall be included in the scope of the claims of the utility model as long as it does not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An airtight disconnecting device with a locking function and capable of realizing automatic separation and sealing, characterized in that: The invention comprises a housing (1), a valve core (2), a joint (3), and a joint valve assembly (4); one end of the joint valve assembly (4) is provided with a groove (7) and is locked in one end of the housing (1) by a steel ball (5), and forms a seal with the housing (1); the valve core (2) is locked in the other end of the housing (1) by the joint (3), and forms a seal with the housing (1); a spring (6) is further provided between the valve core (2) and the joint (3); the valve core (2) forms a seal with the joint valve assembly (4) under the elastic force of the spring (6); an inner hole (8) is provided at the connection end between the housing (1) and the joint valve assembly (4), the steel ball (5) is freely placed in the inner hole (8), and is pressed and adjusted by a spring (9) and an adjusting screw plug (10), so as to realize the locking of the joint valve assembly (4) and the adjustment of the locking force; the adjusting screw plug (10) is provided with a nut (11) in combination.

2. The airtight disconnecting device with locking function and capable of realizing separation and automatic sealing according to claim 1, characterized in that: It also includes a sealing ring (12). The valve core (2) and the sealing ring (12) form a sealing assembly. When the joint valve assembly (4) is pulled out of the outlet, a seal is formed with the plane of the housing (1) under the elastic force of the spring (6).

3. The airtight disconnecting device with locking function and capable of realizing separation and automatic sealing according to claim 1 is characterized in that: A washer (13) is also provided between the adjusting screw plug (10) and the nut (11).

4. The airtight disconnecting device with locking function and capable of realizing separation and automatic sealing according to claim 1 is characterized in that: A boss (14) is also provided on the outer side of the joint valve assembly (4) along the circumferential direction.

5. The airtight disconnecting device with locking function and capable of realizing separation and automatic sealing according to claim 1 is characterized in that: A second sealing ring (15) is also provided at the connection end between the housing (1) and the joint (3).

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