Novel connector and valve capable of being applied to connector
阅读说明：本技术 一种新型连接器以及可应用于连接器的阀门 (Novel connector and valve capable of being applied to connector ) 是由 魏传锋 高勇 王静 巩洪蕾 于 2020-05-28 设计创作，主要内容包括：本发明提出了一种新型连接器及可应用于连接器的阀门。一种新型连接器包括一端开口的缸体,缸体中滑动连接有活塞,缸体内部与活塞之间形成密封的活塞腔；活塞外具有能够与外部零部件连接的锁紧头；缸体或活塞上具有能够与活塞腔连通的进气口和出气口,进气口处设有单向充气阀,排气口处设有压电阀门；随着气体从进气口进入活塞腔中,和/或活塞腔中的气体从出气口排出,活塞沿缸体运动。本发明的连接器,外部充气设备通过进气口向活塞腔中充气实现锁紧,通过出气口泄放活塞腔中的气体实现解锁,重复充气和放气使得该连接器可以重复使用,允许地面多次测试,保证地面测试的有效性和降低测试费用。(The invention provides a novel connector and a valve applicable to the connector. A novel connector comprises a cylinder body with an opening at one end, wherein a piston is connected in the cylinder body in a sliding manner, and a sealed piston cavity is formed between the interior of the cylinder body and the piston; the piston is externally provided with a locking head which can be connected with an external part; the cylinder body or the piston is provided with an air inlet and an air outlet which can be communicated with the piston cavity, the air inlet is provided with a one-way inflation valve, and the air outlet is provided with a piezoelectric valve; the piston moves along the cylinder as gas enters the piston chamber from the gas inlet and/or gas in the piston chamber exits from the gas outlet. According to the connector, the external inflating equipment inflates air into the piston cavity through the air inlet to realize locking, releases air in the piston cavity through the air outlet to realize unlocking, and repeatedly inflates and deflates, so that the connector can be repeatedly used, ground tests are allowed for multiple times, the effectiveness of the ground tests is ensured, and the test cost is reduced.)
1. The novel connector is characterized by comprising a cylinder body with an opening at one end, wherein a piston is connected in the cylinder body in a sliding manner, and a sealed piston cavity is formed between the interior of the cylinder body and the piston;
the piston is externally provided with a locking head which can be connected with an external part;
the cylinder body or the piston is provided with at least one fluid port which can be communicated with the piston cavity, and the fluid port is provided with a valve for controlling the on-off of the fluid port;
the piston moves along the cylinder as gas flows into and/or out of the fluid port.
2. The novel connector of claim 1, wherein the fluid port is an inlet and an outlet capable of simultaneously admitting and exhausting gas, or the fluid port comprises an inlet and an outlet.
3. The novel connector as claimed in claim 1, wherein a return elastic member is provided in the piston cavity, one end of the return elastic member is fixedly connected to the cylinder, and the other end of the return elastic member is fixedly connected to the piston.
4. The novel connector of claim 2, wherein the fluid port comprises an air inlet and an air outlet provided on the side wall of the cylinder, the air inlet being provided with a first valve, and the air outlet being provided with a second valve.
5. The novel connector of claim 4, wherein the air inlet is located below the air outlet, and the air outlet can be closed by the outer wall of the piston after unlocking; the first valve is a one-way inflation valve, and the second valve is a piezoelectric valve.
6. The novel connector of claim 5, wherein the piezoelectric valve comprises a valve housing fixedly connected with the cylinder, the valve housing has a valve core therein, and the valve core has a power supply terminal thereon;
a capillary tube is arranged between the valve core and the inner wall of the valve shell, a capillary air hole is formed in one end of the valve core of the capillary tube, and the outer wall of the other end of the valve core is movably and hermetically connected with the inner wall of the valve shell;
the supply terminals are energized or de-energized, and the piezoelectric valve can be opened or closed.
7. The novel connector according to claim 5, wherein the side wall of the cylinder body is provided with a plurality of air outlets at equal heights, and the piezoelectric valve is arranged at each air outlet.
8. The novel connector as claimed in claim 7, wherein the plurality of air outlets are circumferentially distributed on the side wall of the cylinder body.
9. A novel connector as claimed in any one of claims 1 to 8 wherein the outer wall of the cylinder body is provided with a mounting flange fixedly connected thereto.
10. A valve applicable to the novel connector of any one of claims 1-9, wherein the valve comprises a valve housing having a valve plug therein, the valve plug having a power supply terminal thereon;
a capillary tube is arranged between the valve core and the inner wall of the valve shell, a capillary air hole is formed in one end of the valve core of the capillary tube, and the outer wall of the other end of the valve core is movably and hermetically connected with the inner wall of the valve shell;
the valve can be opened or closed by energizing or de-energizing the power supply terminals.
Technical Field
The invention belongs to the field of connecting devices, and particularly relates to a novel connector and a valve applicable to the connector.
Background
The commonly used connecting pieces of the spacecraft are bolts, mainly bolts based on initiating explosive devices and bolts completely relying on memory metal, and the main defects of the existing initiating explosive device-based devices are as follows: 1) the creation of explosive fragments upon release may affect the spacecraft itself; 2) the explosion impact force generated by the explosion fragments is uncontrollable; 3) the inability to be reused results in testing difficulties or increased costs. For devices using a single memory metal, it avoids the 1 st) and 2 nd) drawbacks of the above-mentioned firer-based devices, but due to its single design, there is no redundancy design, which may fail during use causing the whole spacecraft to fail or a complete failure of the project.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and a first object of the invention is to provide a novel connector to solve the technical problem that the existing initiating explosive device-based device cannot be reused. A second object of the invention is to provide a valve applicable to the above connector.
In order to achieve the first purpose, the invention adopts the following technical scheme: a novel connector comprises a cylinder body with an opening at one end, wherein a piston is connected in the cylinder body in a sliding manner, and a sealed piston cavity is formed between the interior of the cylinder body and the piston;
the piston is externally provided with a locking head which can be connected with an external part;
the cylinder body or the piston is provided with at least one fluid port which can be communicated with the piston cavity, and the fluid port is provided with a valve for controlling the on-off of the fluid port;
as gas flows into and/or out of the fluid port, the piston moves along the cylinder.
In the technical scheme, the cylinder body is fixed on the first part, the external inflation equipment inflates gas into the piston cavity through the fluid port, so that the piston moves in the cylinder body, the locking head is connected with the second part, and the two parts are locked through the connector to finish locking movement; when the piston is unlocked, the gas in the piston cavity is released, the air pressure is reduced, so that the locking head moves reversely in the cylinder body along with the piston, and the locking head is separated from the second part to complete the unlocking movement. According to the connector, the external inflating equipment inflates air into the piston cavity to realize locking, and releases air in the piston cavity to realize unlocking, so that the connector can be repeatedly used, ground tests are allowed for multiple times, the effectiveness of the ground tests is ensured, and the test cost is reduced.
In a preferred embodiment of the present invention, the fluid port is an intake/exhaust port capable of simultaneously taking in and exhausting gas, or the fluid port includes an intake port and an exhaust port.
In a preferred embodiment of the present invention, a return elastic member is disposed in the piston cavity, one end of the return elastic member is fixedly connected to the cylinder, and the other end of the return elastic member is fixedly connected to the piston.
During the unblock, the elastic component that resets is used for making the piston reset, and when avoiding releasing the piston chamber gas, the motionless condition appears blocking in the piston, improves the reliability of this connector.
In a preferred embodiment of the present invention, the fluid port includes an air inlet and an air outlet provided on the side wall of the cylinder body, the first valve is provided at the air inlet, and the second valve is provided at the air outlet. The air inlet and the air outlet are separately arranged, and the on-off of the fluid is controlled by different valves, so that the operation is more reliable.
In a preferred embodiment of the invention, the air inlet is positioned below the air outlet, and after unlocking, the outer wall of the piston can seal the air outlet; the first valve is a one-way inflation valve, and the second valve is a piezoelectric valve.
After the unblock, the piston outer wall seals the gas outlet, both can guarantee that the locking head breaks away from the second spare part and realize the unblock, can guarantee again that the piston can not move to air inlet department and seal it (if the piston seals the air inlet, need artifical manual messenger piston motion to open the air inlet), make the one-way inflation valve of outside inflation equipment accessible air inlet department aerify in to the piston chamber, realize the locking and the used repeatedly of this novel connector.
In another preferred embodiment of the present invention, the piezoelectric valve comprises a valve housing fixedly connected to the cylinder, the valve housing having a valve core therein, the valve core having a power supply terminal thereon;
a capillary tube is arranged between the valve core and the inner wall of the valve shell, a capillary air hole is formed in one end of the valve core of the capillary tube, and the outer wall of the other end of the valve core is movably and hermetically connected with the inner wall of the valve shell;
the piezoelectric valve can be opened or closed by energizing or de-energizing the power supply terminals.
After the piezoelectric valve is arranged, when the piezoelectric valve is locked, the piezoelectric valve is closed, when the piezoelectric valve needs to be unlocked, enough voltage is provided for a power supply terminal of the piezoelectric valve to enable the valve core to extend, so that the piezoelectric valve is opened, and after the power supply is stopped, the valve core is shortened to enable the piezoelectric valve to be closed, and the operation is simple.
In another preferred embodiment of the invention, a plurality of air outlets are arranged on the side wall of the cylinder body at equal heights, and piezoelectric valves are arranged at the air outlets. A plurality of piezoelectric valves are arranged, and the novel connector is designed in a redundant mode, so that the phenomenon that one piezoelectric valve breaks down to cause failure of the novel connector is avoided.
In another preferred embodiment of the present invention, the plurality of air outlets are circumferentially distributed on the side wall of the cylinder. Therefore, the integral uniformity during air leakage can be ensured, and the influence on the posture of the spacecraft is eliminated.
In another preferred embodiment of the present invention, the outer wall of the cylinder body is sleeved with a mounting flange fixedly connected with the outer wall. The cylinder body is fixedly connected with the first part through a mounting flange, and is convenient to detach.
In order to achieve the second purpose, the invention adopts the following technical scheme: the valve can be applied to the connector and comprises a valve shell, a valve core and a valve core, wherein the valve shell is internally provided with a valve core, and the valve core is provided with a power supply terminal;
a capillary tube is arranged between the valve core and the inner wall of the valve shell, a capillary air hole is formed in one end of the valve core of the capillary tube, and the outer wall of the other end of the valve core is movably and hermetically connected with the inner wall of the valve shell;
the valve can be opened or closed by energizing or de-energizing the power supply terminals.
In the technical scheme, the valve is provided with the required voltage through the power supply terminal, and the valve core extends towards one end far away from the power supply terminal, so that the closed valve is opened; after the power supply is stopped, the extended valve core is shortened, and the valve can be reset and closed.
The invention has the beneficial effects that: this novel connector realizes the change of cylinder body piston intracavity atmospheric pressure through piezoelectric valve and one-way inflation valve, and then stimulates piston motion through the balance of the gaseous pressure in playback elastic component and the piston intracavity, finally realizes the locking and the unblock of this novel connector. The design can effectively eliminate the influence of explosive force and explosive fragments generated by the initiating explosive device bolts on the spacecraft, can easily realize the redundancy function, ensures the normal use during the period, can realize the repeated use of devices through the one-way inflation valve, ensures the effectiveness of ground test and reduces the test cost.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a novel connector according to a first embodiment of the present application.
Fig. 2 is a schematic view of the piezoelectric valve of fig. 1 in a closed state.
Fig. 3 is a schematic view of the piezoelectric valve of fig. 1 in an open state.
Reference numerals in the drawings of the specification include: the pneumatic control valve comprises a
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in 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 thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
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