CN114849112A

CN114849112A - Pin pulling switch for air-drop fire extinguishing bomb and pin pulling power-on device

Info

Publication number: CN114849112A
Application number: CN202210487478.6A
Authority: CN
Inventors: 张元涛; 陈莉; 刘涛; 刘健
Original assignee: Hunan Maxwell Electronic Technology Co Ltd
Current assignee: Hunan Maxwell Electronic Technology Co Ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-05
Anticipated expiration: 2042-05-06
Also published as: CN114849112B

Abstract

The invention provides a pin pulling switch and a pin pulling power-on device for an air-drop fire extinguishing bomb, which comprise a pin pulling device and a reset switch, wherein the reset switch comprises a shell, a first conductive group, a second conductive group and a control cavity, the first conductive group and the second conductive group are positioned in the shell, the control cavity is positioned between the first conductive group and the second conductive group, the first conductive group and the second conductive group are respectively connected with corresponding leads, a button is elastically and movably arranged in the control cavity, the button comprises an insulator and a conductive body, the contact and separation states of the conductive body, the first conductive group and the second conductive group are switched when the button moves along the control cavity, the pin pulling device comprises a buckle and a pull ring which are connected, the pull ring is used for pulling the buckle, and the buckle is used for pressing the button into the control cavity and keeping the button. The invention not only can solve the problem of power supply in advance of fire extinguishing bomb and the like, but also has no strict requirements on the shape and height of the product, can be used for air-drop fire extinguishing bombs with different shapes and various specifications, and is convenient to install.

Description

Pin pulling switch for air-drop fire extinguishing bomb and pin pulling power-on device

Technical Field

The invention relates to the technical field of air-drop electrification, in particular to a pin pulling switch and a pin pulling electrification device for an air-drop fire extinguishing bomb.

Background

The existing aerial drop fire extinguishing bomb detector mainly has two power supply modes, wherein the first mode is that power supply is started before aerial drop, and the second mode is that airflow generated when free falling body is accelerated is utilized to drive a turbine motor to generate power. Both of these two power supply modes have respective disadvantages, the first product has a risk of air-explosion in the lift-off process, and the second has requirements on the air-drop height and the product shape. Therefore, there are limitations to using both of these approaches.

It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

Disclosure of Invention

The purpose of the invention is: aiming at the defects existing in the background technology, the pin pulling switch for the air-drop fire extinguishing bomb and the related power-on device are provided, so that the problem of reliability of power supply in advance of the fire extinguishing bomb and the like is solved, the problem that the shape and the height of a product are strictly required by the power generation of a turbine motor is solved, and the air-drop fire extinguishing bomb is suitable for various different scenes.

In order to achieve the above object, the present invention provides a pin pulling switch for an air-drop fire extinguishing bomb, including a pin puller and a reset switch, where the reset switch includes a housing, a first conductive set, a second conductive set and a control cavity between the first conductive set and the second conductive set, the first conductive set and the second conductive set are respectively connected to corresponding leads, a button is elastically and movably disposed in the control cavity, the button includes an insulator and a conductive body, the button switches contact and separation states of the conductive body with the first conductive set and the second conductive set when moving along the control cavity, the pin puller includes a connected buckle and a pull ring, the pull ring is used for pulling the buckle, and the buckle is used for pressing the button into the control cavity and holding the button.

Further, a first conductive cavity and a second conductive cavity are formed in the shell, a first conductive block is arranged in the first conductive cavity, a second conductive block is arranged in the second conductive cavity, and the first conductive block and the second conductive block are connected with corresponding leads.

Furthermore, the first conductive block and the second conductive block are respectively fixed in the first conductive cavity and the second conductive cavity through screws.

Further, the conductive body includes a conductive rod and a conductive plate connected to an inner end of the conductive rod, such that when the button is moved to an outermost end of the control chamber, the conductive plate is simultaneously in contact with the first conductive set and the second conductive set, and when the button is moved to an inner end of the control chamber, the conductive plate is separated from the first conductive set and the second conductive set.

Furthermore, an elastic body is arranged in the control cavity, the button is connected with the elastic body, and the elastic body continuously applies elastic force to the outer end of the control cavity.

Further, the buckle contacts with the outer end of the button to drive the button to move towards the control cavity.

Furthermore, the buckle is a petal-shaped structure consisting of multiple petals and is made of elastic materials.

Further, the bottom end of the buckle is formed with a wedge surface.

The invention also provides a pin pulling electrifying device for the air-drop fire extinguishing bomb, which comprises a bottom plate, a battery seat arranged on the bottom plate, a battery arranged in the battery seat, an interface control plate, a cover plate and the pin pulling switch, wherein the buckle penetrates through the opening on the cover plate and is in contact with the button.

Further, be provided with two control switch and two interfaces on the interface control board, two control switch are switch and binding switch respectively, switch is used for controlling on the battery and prevents the short circuit electric leakage, binding switch is used for controlling the high-explosive distance, two the interface is detector interface and ignition interface respectively, the detector interface is used for being connected with the detector, the ignition interface is used for being connected with the detonator of fire extinguishing bomb, pull out the round pin switch with when switch opens simultaneously, the detector that connects accomplishes the circuit and switches on the closed loop.

The scheme of the invention has the following beneficial effects:

the pin pulling switch and the pin pulling electrifying device for the air-drop fire extinguishing bomb provided by the invention not only can solve the problem of power supply in advance of the fire extinguishing bomb and the like, but also have no strict requirements on the shape and the height of a product, can be used for air-drop fire extinguishing bombs with different shapes and various specifications, and are convenient to install; two insurance is formed, and various accidental operations can be well prevented; meanwhile, the structure is simple, and the processing and the manufacturing are convenient;

other advantages of the present invention will be described in detail in the detailed description that follows.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a schematic structural diagram of an interface control board according to the present invention;

FIG. 4 is a cross-sectional view (off state) of the reset switch of the present invention;

FIG. 5 is a cross-sectional view (closed state) of the reset switch of the present invention;

FIG. 6 is a front view (not inserted) of the snap-fit arrangement of the present invention;

FIG. 7 is a front view of the snap-fit arrangement of the present invention (inserted);

FIG. 8 is a side view of the snap-fit arrangement of the present invention (not inserted);

fig. 9 is a side view of the snap-fit arrangement of the present invention (inserted).

[ instruction of reference ]

1-a bottom plate; 2-a battery holder; 3-a battery; 4-interface control panel; 401-power switch; 402-a binding switch; 403-indicator light; 404-a probe interface; 405-an ignition interface; 5-cover plate; 6-a reset switch; 601-a housing; 602-a first conductive cavity; 603-a second conductive cavity; 604-a control chamber; 605-a first conductive block; 606-a second conductive block; 607-the lead; 608-screws; 609-a button; 610-a conductive rod; 611-a conductive plate; 612-a spring; 7-buckling; 701-wedge surface; 8-pull ring.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be understood broadly, for example, as being either a locked connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention relates to the technical field of air-drop electrification, and in the prior art, the power supply mode of an air-drop fire extinguishing bomb detector part mainly comprises two power supply modes, wherein the first power supply mode is started before air-drop, and the second power supply mode is characterized in that a turbine motor is driven to generate power by utilizing airflow generated when a free falling body is accelerated. Both of these two power supply modes have their own drawbacks, the first product has the risk of air-explosion during the lift-off process, and the second has requirements on the air-drop height and the product shape. Therefore, there are limitations to using both of these approaches.

In view of this, embodiments of the present invention provide an improved pin-pull power-up device for aerial fire bombs to ameliorate the above-mentioned problems.

Specifically, as shown in fig. 1 and 2, the device includes a base plate 1, a battery holder 2 disposed on the base plate 1, a battery 3 installed in the battery holder 2, an interface control board 4, a cover plate 5, a reset switch 6, and a pin puller. The pin puller consists of a buckle 7 and a pull ring 8, and the pin puller and the reset switch 6 form a pin pulling switch which is a key part of the invention.

Meanwhile, as shown in fig. 3, the interface control board 4 is provided with two control switches, two interfaces and an indicator light, wherein the two control switches are a power switch 401 and a binding switch 402. The power switch 401 functions to control the power-on of the battery 3 and prevent short-circuit leakage, and the power switch 401 is further provided with an indicator lamp 403, and the indicator lamp 403 is turned on when the battery is normally powered. Binding switch 402 may provide a distance to fry control function, with "low" gear being low fry high and "high" gear being high fry high; the two interfaces are respectively a detector interface 404 and an ignition interface 405, the detector interface 404 is used for being connected with a detector, the ignition interface 405 is connected with a fuse of a fire extinguishing bomb, the number of cores of the interfaces is different, and the interface sockets are of foolproof design, so that wrong insertion and short circuit can be prevented. And, two interfaces are independently set up respectively, have better suitability.

The pin pulling switch has the effect that a safety is added before the detector works, the power supply limitation of the battery 3 is only removed when the power switch 401 is pulled to an 'on' gear, and the battery 3 is finally switched on and closed by the detector only after the pin pulling device of the pin pulling switch is pulled out.

The specific structure of the reset switch 6 is as shown in fig. 4 and 5, and includes a housing 601, a first conductive cavity 602, a second conductive cavity 603, and a control cavity 604 between the first conductive cavity 602 and the second conductive cavity 603, the first conductive cavity 602 and the second conductive cavity 603 are respectively filled with a first conductive block 605 and a second conductive block 606, and the first conductive block 605 and the second conductive block 606 are respectively connected to corresponding leads 607, so that when the first conductive block 605 and the second conductive block 606 are connected, the leads 607, that is, the entire circuit is turned on.

In this embodiment, the first conductive block 605 and the second conductive block 606 are fixed in the corresponding conductive cavities by screws 608, and the button 609 is movably disposed in the control cavity 604. The outer layer of the button 609 is made of plastic insulating material, the inner layer is provided with a conductive rod 610, and the inner end of the conductive rod 610 is provided with a conductive plate 611 which protrudes out of the outer diameter of the conductive rod 610. When the button 609 moves to the outermost end of the control chamber 604, the conductive plate 611 at the inner end of the conductive rod 610 simultaneously contacts the first conductive block 605 and the second conductive block 606, completing the whole circuit conduction. When the button 609 moves toward the inner end of the control chamber 604, the conductive plate 611 is separated from the first conductive piece 605 and the second conductive piece 606, and both the first conductive piece 605 and the second conductive piece 606 are in contact with the insulating plastic layer, so that the entire circuit is not completed.

In this embodiment, the button 609 is connected to an elastic body, preferably a spring 612, arranged in the control chamber 604, and the spring 612 is a compression spring, continuously applying an elastic force to the outer end of the control chamber 604. Therefore, when the push button 609 is not subjected to external force, the conductive plate 611 is kept in contact with the first conductive piece 605 and the second conductive piece 606, the whole circuit is in a conducting state, the push button 609 is pushed into the control cavity 604 under external force, and the circuit is disconnected.

In this embodiment, the button 609 is controlled by a pin puller, which is mainly composed of a catch 7 and a pull ring 8, the catch 7 passing through a square hole in the cover plate 5. When pressed, the catch 7 presses the outer end of the button 609, causing the button 609 to move inwardly. Meanwhile, when the buckle 7 is completely pressed down, the buckle 7 is pressed against the button 609, the button 609 is in a pressed-in state all the time, and the whole circuit is disconnected. When the circuit needs to be connected, the button 609 can be ejected out after the buckle 7 is pulled out by pulling the pull ring 8, and the circuit is closed and conducted.

Meanwhile, as shown in fig. 6-9, the clip 7 in this embodiment is preferably a petal-shaped structure composed of multiple petals and made of an elastic material. When the external force is not applied, the petal-shaped structure is in an open state, and the whole size is larger than that of the square hole. Therefore, when the buckle 7 is completely pressed down, on one hand, the buckle keeps an open state and is clamped below the square hole under the action of self elastic force, and on the other hand, the buckle is tightly pressed outwards under the action of the button 609 and the elastic force, so that the buckle is ensured not to loosen and unhook when no external force exists.

In a preferred embodiment, the bottom end of the snap 7 in this embodiment is formed with a wedge surface 701, that is, the bottom end of each petal-shaped structure is formed with a wedge surface 701. The wedge-shaped surface 701 facilitates on the one hand the insertion of the catch 7 downwards from the square hole, while also gradually pressing the button 609 inwards when the wedge-shaped surface 701 is in contact with the button 609. When the buckle 7 is completely in place, the outer end of the button 609 is separated from the wedge surface 701 and is in contact with the straight surface of the buckle 7, so that the buckle 7 can be stably abutted.

Install the top at the fire extinguishing bomb with the product, then with rope one end on pull ring 8 of pin puller, another end is then tied up on unmanned aerial vehicle or aircraft, opens switch, during the air-drop fire extinguishing bomb, the gravity of fire extinguishing bomb draws and can make the pin puller unhook, and whole circuit can be closed to switch on like this, and the system begins work.

The power-on device provided by the embodiment has high adaptability, can be used for air-drop fire extinguishing bombs with different shapes and various specifications, and is convenient to install; in addition, the power switch and the reset switch are provided with two insurance, so that various accidental operations can be prevented well; meanwhile, the structure is simple, and the processing and the manufacturing are convenient.

While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the invention as set forth in the appended claims.

Claims

1. A pin-pulling switch for an air-drop fire extinguishing bomb, characterized by comprising a pin-pulling device and a reset switch (6), wherein the reset switch comprises a shell (601), a first conductive set and a second conductive set which are positioned inside the shell (601), and a control cavity (604) which is positioned between the first conductive set and the second conductive set, the first conductive set and the second conductive set are respectively connected with corresponding leads (607), a button (609) is elastically and movably arranged in the control cavity (604), the button (609) comprises an insulator and a conductive body, the button (609) switches the conductive body to be in contact with and separated from the first conductive set and the second conductive set when moving along the control cavity (604), the pin-pulling device comprises a buckle (7) and a pull ring (8) which are connected, and the pull ring (8) is used for pulling the buckle (7), the snap (7) is used for pressing the button (609) into the control cavity (604) and keeping.

2. The pin pulling switch for the air-drop fire extinguishing bomb according to claim 1, wherein a first conductive cavity (602) and a second conductive cavity (603) are formed in the shell (601), a first conductive block (605) is arranged in the first conductive cavity (602), a second conductive block (606) is arranged in the second conductive cavity (603), and the first conductive block (605) and the second conductive block (606) are connected with corresponding leads (607).

3. The pin-pulling switch for an aerial delivery fire extinguishing bomb according to claim 2, wherein the first conductive block (605) and the second conductive block (606) are fixed in the first conductive cavity (602) and the second conductive cavity (603) respectively by screws (608).

4. A deadbolt switch for an aerial fire extinguishing bomb according to claim 1, characterized in that the electrical conductor comprises an electrically conductive rod (610) and an electrically conductive plate (611) connected to the inner end of the electrically conductive rod (610) such that when the button (609) is moved to the outermost end of the control chamber (604), the electrically conductive plate (611) is in contact with both the first and second electrically conductive groups, and when the button (609) is moved towards the inner end of the control chamber (604), the electrically conductive plate (611) is separated from both the first and second electrically conductive groups.

5. A tumbler switch for an aerial delivery grenade according to claim 1, characterized in that an elastomer is arranged in the control chamber (604), to which elastomer the button (609) is connected, which elastomer continuously exerts an elastic force on the outer end of the control chamber (604).

6. A deadbolt switch for an aerial delivery grenade as defined in claim 1, characterized in that the catch (7) contacts the outer end of the button (609) forcing the button (609) towards the control chamber (604).

7. The pin-pulling switch for an air-drop fire extinguishing bomb according to claim 6, characterised in that the buckle (7) is of a multi-lobed petal structure and is made of an elastic material.

8. A tumbler switch for air-drop bombs according to claim 6, characterized in that the bottom end of the catch (7) is formed with a wedge-shaped face (701).

9. A power-on device for a pin pulling of an air-drop fire extinguishing bomb is characterized by comprising a bottom plate (1), a battery holder (2) arranged on the bottom plate (1), a battery (3) installed in the battery holder (2), an interface control panel (4), a cover plate (5) and the pin pulling switch according to any one of claims 1-8, wherein a buckle (7) penetrates through an opening in the cover plate (5) and is in contact with a button (609).

10. The pin pulling electrifying device for the air-drop fire extinguishing bomb according to claim 9, wherein the interface control board (4) is provided with two control switches and two interfaces, the two control switches are respectively a power switch (401) and a binding switch (402), the power switch (401) is used for controlling the electrification of the battery (3) and preventing short circuit and electric leakage, the binding switch (402) is used for controlling the explosive height distance, the two interfaces are respectively a detector interface (404) and an ignition interface (405), the detector interface (404) is used for being connected with a detector, the ignition interface (405) is used for being connected with a fuse, and when the pin pulling switch and the power switch (401) are simultaneously turned on, the connected detector completes a circuit conduction closed loop.