CN214747545U

CN214747545U - Rocket gun ignition signal detects quick interfacing apparatus based on formula is inhaled to magnetism

Info

Publication number: CN214747545U
Application number: CN202121098815.XU
Authority: CN
Inventors: 孙吉红; 刘航; 方帆; 杨清文; 张木森; 周生; 郭凯; 刘闯; 胡博; 姚震雨; 李俊; 胡磊; 金波; 房施东; 秦鹏程
Original assignee: PLA Army Academy of Artillery and Air Defense
Current assignee: PLA Army Academy of Artillery and Air Defense
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-11-16
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses a quick butt joint device for detecting rocket gun ignition signals based on a magnetic suction type, which comprises an L-shaped main body; the overall shape of the L-shaped main body is an L-shaped cuboid; the L-shaped main body comprises a fixed seat upper part and a fixed seat lower part; the middle part of the upper part of the fixed seat is provided with an arc-shaped cavity; an annular permanent magnet is arranged in the arc-shaped groove at the upper part of the fixed seat; the lower part of the fixed seat is provided with a cylindrical groove and a stepped groove; a negative contact is arranged in the cylindrical groove; a positive contact is arranged in the stepped groove; the first cavity in the lower part of the fixed seat is respectively communicated with the cylindrical groove and the stepped groove; and a lead is arranged in the first cavity and is connected with the negative contact and the positive contact through the lead. The utility model discloses carry out magnetism according to the ignition contact and inhale the formula design, realize detecting the contact piece and rely on strong magnetic force and the quick butt joint of rocket gun ignition contact large tracts of land to provide a interfacing apparatus inseparable, stable, the easy operation for ignition signal's detection.

Description

Rocket gun ignition signal detects quick interfacing apparatus based on formula is inhaled to magnetism

Technical Field

The utility model belongs to the technical field of the signal detection, concretely relates to rocket gun ignition signal detects quick interfacing apparatus based on formula is inhaled to magnetism.

Background

The rocket gun ignition signal detection is important content of rocket gun technical guarantee, and aims to accurately detect ignition signals in an ignition system before the rocket gun is launched and ensure that rocket projectiles are launched safely and reliably. The ignition signal detection content comprises information such as voltage, current and pulse width provided by the directional tube conductive device, and emission timing intervals of the rocket projectiles. The butt joint device for detecting the ignition signal is special equipment and is used for quickly and stably realizing butt joint and detection of the ignition contact of the rocket gun orientation tube conducting device.

The existing detection butt joint device is of a clamping type, and has the defects of small contact area of a detection point, easiness in loosening of a contact block, relative exposure of the detection point, easiness in generating deviation, poor stability in a detection process and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at just in order to overcome current detection interfacing apparatus and adopt joint mode and ignition contact butt joint, there are that check point area of contact is little, contact piece is easy not hard up, the check point exposes relatively, easily produces the skew, defects such as testing process poor stability, it sets up the magnet storehouse and is used for installing magnet to have proposed at contact fixing base the first half, adsorb detection module on rocket gun ignition contact, and set up the identical butt joint of wedge butt joint boss and the anterior formation of ignition contact at the anodal rear of fixing base the latter half. The detection module is tightly attracted to the ignition contact through the strong magnetic force, three surface contact is formed, the contact area of the detection points is enlarged, the ignition contact can be more stably and reliably butted with the fixing seat, the butt joint is more convenient, and the detection stability is improved.

A quick butt joint device for detecting rocket gun ignition signals based on a magnetic suction type comprises an L-shaped main body; the overall shape of the L-shaped main body is an L-shaped cuboid; the L-shaped main body comprises a fixed seat upper part 1 and a fixed seat lower part 2;

the middle part of the upper part of the fixed seat is provided with an arc-shaped cavity 3, and the bottom surface of the arc-shaped cavity 3 and the top surface of the lower part 2 of the fixed seat are positioned on the same plane; the upper part of the fixed seat is also provided with an arc-shaped groove, and an annular permanent magnet 4 is arranged in the arc-shaped groove;

a cylindrical groove and a stepped groove are formed in the lower part of the fixed seat; a negative contact 5 is arranged in the cylindrical groove; a positive contact 6 is arranged in the stepped groove;

a first cavity 7 is also arranged in the lower part of the fixed seat; the first cavity 7 is respectively communicated with the cylindrical groove and the stepped groove; a lead 8 is arranged in the first cavity 7 and is connected with the negative contact 5 and the positive contact 6 through leads.

The positive contact 6 is arranged in the stepped groove, and the upper part of the groove is in a circular truncated cone shape; and a positive electrode spring 9 is arranged below the positive electrode contact, and the positive electrode spring 9 is compressed when the positive electrode contact 6 moves downwards.

The lower end of the negative contact 5 is inserted into the cylindrical groove, and the upper end of the cylindrical groove extends out of the cylindrical groove and is higher than the top surface of the lower part of the fixed seat.

The lower end of the negative contact 5 is a cylindrical boss, and a negative spring 10 is sleeved on the cylindrical boss.

The fixing seat lower part 2 is provided with a wedge-shaped butt joint boss 11 between the stepped groove and the inner wall of the arc-shaped cavity 3.

On the fixing base upper portion 1, one side of arc cavity 3 is provided with battery compartment 12.

A second cavity 14 is arranged on the other side of the arc-shaped cavity 3 on the upper part 1 of the fixed seat; a loudspeaker is arranged in the second cavity 14, and a plurality of through holes 15 are formed in the outer wall surface of the second cavity, which is far away from the arc-shaped inner cavity 3.

An end cover 16 is arranged on one side of the upper part 1 of the fixed seat, which is opposite to the opening direction of the arc-shaped cavity 3.

A circuit board 17 is arranged between the end cover 16 and the upper part 1 of the fixed seat

The circuit board 17 is provided with a display 18, an indicator light 19 and a button 20.

The utility model discloses a quick interfacing apparatus is inhaled to magnetism has following advantage:

1. simple structural design and convenient operation

The modular, automatic and integrated design is adopted, the U-shaped deep grooves in the upper half part of the L-shaped cuboid are in butt joint in a matched mode according to the shape of the ignition contact, accurate positioning can be achieved through one-time butt joint, and operation is simple.

2. The detection stability is good

Through adopting the butt joint mode of magnetism to inhale, satisfy the toper circular slot on the contact piece of ignition contact and constitute full enclosed contact to the ignition contact, anodal thrust that utilizes the spring realizes detecting the contact and the anterior inseparable combination of ignition contact, and the negative pole utilizes the thrust of spring and the fixing base lower extreme in close contact with of ignition contact, has enlarged check point area of contact, improves atress strainability and detection stability.

3. Good expansibility and convenient use by the base-level troops

The modular design is adopted, the device can be independently used for butt joint detection of the ignition contact, can also be modified and expanded, is connected with other detection instruments, further expands the functions, and can meet the requirement of being convenient for basic units to use under the field condition.

4. Stable butt joint and convenient disassembly

The upper half part of the L-shaped cuboid of the ignition contact fixing seat is provided with the annular magnet bin for mounting the magnet, so that the ignition contact can be more stably and reliably butted with the fixing seat, and the butt joint is more convenient. The magnetic type design is carried out according to the ignition contact, the large-area rapid butt joint of the ignition contact and the detection contact block is realized, and therefore a compact, stable and extensible butt joint device is provided for the detection of ignition signals. Meanwhile, after detection is finished, the detection tool is convenient to disassemble, contact points of the contacts can be prevented from being abraded, time can be saved, and detection efficiency is greatly improved.

5. Good reliability

For the whole detection system, whether a stable working state can be kept for a long time or not is achieved, the occurrence of failure times is reduced, and the detection device plays an important role. The design of the detection device has the characteristics of small volume, light weight, simple operation, high automation degree and the like, and can ensure that the continuous working time is not less than 24 hours under the field operation condition.

Drawings

Fig. 1 is a front view (schematic front sectional structure) of the quick docking device of the present invention;

FIG. 2 is a schematic cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a view in the direction B of FIG. 1;

fig. 4 is a schematic sectional view along the direction C-C in fig. 1.

Fig. 5 is a first perspective view of the quick docking device of the present invention;

fig. 6 is a second perspective view of the quick docking device of the present invention;

fig. 7 is an exploded view of the quick docking device of the present invention;

fig. 8 is a perspective view of an ignition contact used in cooperation with the present invention.

Detailed Description

The present invention is described in further detail below with reference to figures 1-8. The position of "upper" in following characters is referred to "lower" the utility model discloses a magnetism is inhaled quick interfacing apparatus' S fixing base upper part S and fixing base lower part X, and the top of "cuboid" of the L type cuboid also refers to fixing base upper part S and fixing base lower part X and says. "L type cuboid" does not regard as the complete restriction to the utility model discloses the structure, to the technical personnel in the field under the spirit of the teaching of the utility model, other shapes can also be made into to the whole appearance of the magnetism of ignition signal detection and inhale quick interfacing apparatus.

Referring to fig. 1-7, the invention relates to a magnetic attraction type rocket gun ignition signal detection rapid butt joint device, which comprises an L-shaped main body; the overall shape of the L-shaped main body is an L-shaped cuboid; the L-shaped main body comprises a fixed seat upper part 1 and a fixed seat lower part 2;

the size of the annular permanent magnet is consistent with that of the arc-shaped groove, so that the annular permanent magnet can be just plugged into the arc-shaped groove. As shown in fig. 8, the ferrous ignition contact has a cylindrical upper end 101 and a conical lower end 102. When the conical part 102 at the lower end of the iron ignition contact is embedded into the stepped groove, the outer wall of the iron ignition contact is attached to the cavity wall of the arc-shaped cavity, so that the ignition contact can be stably clamped in the arc-shaped cavity and the stepped groove.

The step groove is of a bell-mouth-shaped structure with a large upper part and a small lower part, and the positive contact is of a similar bell-mouth structure. The structure of the bell mouth is matched with the shape of the conical part at the lower end part of the ignition contact, so that the conical part 102 of the ignition contact is just inserted into the inner cavity of the bell mouth of the positive electrode contact, the peripheral conical surface of the conical part is just matched with the inner conical surface of the bell mouth, the conical part can be in arc surface contact with the stepped groove, and the contact area is increased. Meanwhile, the contact stability is further improved through two structural characteristics of the wedge-shaped butt joint boss and the arc cavity matched with the ignition contact.

The negative contact 5 is in a step shape with a thick upper part and a thin lower part, the upper part and the lower part are both cylinders, and the lower end is a thinner cylindrical boss. The outer diameter of the negative pole spring is the same as the diameter of the upper end of the negative pole contact, and the inner diameter of the negative pole spring is the same as the diameter of the cylindrical boss at the lower end of the negative pole contact 5. When the negative contact moves downward, the negative spring is compressed. The upper end of the negative contact extends out of the cylindrical groove and is higher than the top surface of the lower part of the fixed seat.

As shown in fig. 8, the upper end of the ferrous ignition contact is cylindrical 101. A tapered surface 1011 is formed by cutting a wedge shape toward the center of the cylinder above the portion of the cylindrical body 101 abutting against the tapered portion 102. The inclined plane 1011 is butted with the wedge-shaped butt joint boss 11, the wedge-shaped butt joint boss 11 and the front part of the ignition contact can be just matched with each other and form surface contact, so that the ignition contact has better stability in butt joint, the ignition contact is prevented from being deviated due to left-right shaking, and the problem that the ignition contact is easily deviated left and right in the prior art is solved.

Ignition contact and the utility model discloses a during rocket gun ignition signal detects quick interfacing apparatus butt joint based on formula is inhaled to magnetism, following 3 butt joint faces that have:

1. the peripheral surface of the cylinder 101 is in surface contact with the wall surface of the arc-shaped cavity 3, and the iron ignition contact is tightly sucked through the arc-shaped cavity 3;

2. the inclined plane 1011 and the inclined plane of the wedge-shaped butt joint boss 11 form surface contact, so that the ignition contact is prevented from axially rotating and radially jumping;

3. the conical portion 102 of the ignition contact is in surface contact with the downwardly recessed flare of the positive contact to prevent axial play of the ignition contact.

Based on the limitation of the above 3 surface contacts, when the ignition contact is in butt joint, the peripheral surface of the ignition contact is matched with the arc-shaped cavity, and the stability of the ignition contact is greatly improved.

And a dry battery 13 is arranged in the battery bin and used for supplying power to the circuit board. As seen in fig. 1 and 4, the battery compartment 12 is located at the right end of the upper part 1 of the fixing base, at the right side of the arc-shaped cavity 3. The battery chamber 12 is internally provided with 2 dry batteries 12 which are connected in series to provide a 3V direct current power supply for the circuit board.

A second cavity 14 is provided on the side corresponding to the battery compartment 12, left of the arc-shaped cavity 3, as seen in fig. 1 and 4. The second cavity 14 has a speaker built therein. On the left side outer wall of fixing base upper portion 1, be provided with a plurality of through-holes 15 as the speaker hole, outwards make a sound.

The end cover is provided with an opening and a plurality of through holes. The display screen is exposed from the opening, and the indicator light and the button correspond to the through holes. The first cavity is communicated with the inner cavity of the end cover, so that the lead 8 in the first cavity 7 can be connected with the circuit board.

As shown in fig. 7, 4 copper studs 21 are arranged at 4 corners on the outer wall surface of the upper part of the fixing seat near the end cover. The copper stud is provided with a cylindrical inner cavity, and the inner wall of the cylindrical inner cavity is provided with internal threads, so that the screw 22 can be screwed into the inner cavity. Through holes are formed in the circuit board corresponding to the copper studs 21, and screws 22 sequentially penetrate through the through holes and then are screwed into the copper studs, so that the circuit board can be fixed to one side of the upper portion of the fixing seat. As seen in fig. 1 and 4, the end cap covers the rear wall of the upper portion of the holder to protect the circuit board within the end cap.

As a further preferable scheme, the fixing seat is made of a polyimide material which has high temperature resistance, wear resistance, light weight and good toughness. The positive contact and the negative contact are made of nickel brass materials with small conductive resistance and strong rust resistance and corrosion resistance, and the positive spring and the negative spring are made of stainless steel materials with better toughness.

The utility model discloses a magnetism is inhaled formula rocket gun ignition signal and is detected quick interfacing apparatus, when needs examine rocket gun orientation tube electric installation's ignition contact, aim at the ignition contact with the opening of the ladder recess of fixing base, under the guide of ladder recess on the fixing base, in ignition contact embedding fixing base upper portion, with conical contact groove on the positive pole contact closely laminates, and the strong magnetic force through the permanent magnet docks rapidly and targets in place, makes positive pole contact and negative pole contact remain inseparable firm binding state with the ignition contact throughout. And the ignition signals such as voltage, current, pulse width and the like are output to a detection instrument through a lead, so that the accurate detection of the ignition signals is completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The present invention is not limited to the above description of the embodiments, and those skilled in the art should be able to make modifications and alterations without creative work on the basis of the present invention.

Claims

1. The utility model provides a rocket gun ignition signal detects quick interfacing apparatus based on formula is inhaled to magnetism, its characterized in that: comprises an L-shaped main body; the overall shape of the L-shaped main body is an L-shaped cuboid; the L-shaped main body comprises a fixed seat upper part (1) and a fixed seat lower part (2);

an arc-shaped cavity (3) is arranged in the middle of the upper part of the fixed seat, and the bottom surface of the arc-shaped cavity (3) and the top surface of the lower part (2) of the fixed seat are positioned on the same plane; the upper part of the fixed seat is also provided with an arc-shaped groove, and an annular permanent magnet (4) is arranged in the arc-shaped groove;

a cylindrical groove and a stepped groove are formed in the lower part of the fixed seat; a negative contact (5) is arranged in the cylindrical groove; a positive contact (6) is arranged in the stepped groove;

a first cavity (7) is also arranged in the lower part of the fixed seat; the first cavity (7) is respectively communicated with the cylindrical groove and the stepped groove; a lead (8) is arranged in the first cavity (7) and is connected with the negative contact (5) and the positive contact (6) through the lead.

2. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 1, characterized in that: the positive contact (6) is arranged in the stepped groove, and the upper part of the groove is in a circular truncated cone shape; and a positive electrode spring (9) is arranged below the positive electrode contact, and the positive electrode spring (9) is compressed when the positive electrode contact (6) moves downwards.

3. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 1, characterized in that: the lower end of the negative contact (5) is inserted into the cylindrical groove, and the upper end of the cylindrical groove extends out of the cylindrical groove and is higher than the top surface of the lower part of the fixed seat.

4. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 3, characterized in that: the lower end of the negative contact (5) is a cylindrical boss, and a negative spring (10) is sleeved on the cylindrical boss.

5. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 1, characterized in that: the lower fixing seat part (2) is provided with a wedge-shaped butt joint boss (11) between the stepped groove and the inner wall of the arc-shaped cavity (3).

6. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 1, characterized in that: and a battery bin (12) is arranged on one side of the arc-shaped cavity (3) on the upper part (1) of the fixing seat.

7. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 1, characterized in that: a second cavity (14) is arranged on the other side of the arc-shaped cavity (3) on the upper part (1) of the fixed seat; a loudspeaker is arranged in the second cavity (14), and a plurality of through holes (15) are formed in the outer wall surface, far away from the arc-shaped cavity (3), of the second cavity.

8. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 1, characterized in that: an end cover (16) is arranged on one side of the upper part (1) of the fixed seat, which is opposite to the opening direction of the arc-shaped cavity (3).

9. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 8, characterized in that: a circuit board (17) is arranged between the end cover (16) and the upper part (1) of the fixed seat.

10. The quick docking device for rocket gun ignition signal detection based on magnetic attraction type according to claim 9, characterized in that: the circuit board (17) is provided with a display screen (18), an indicator light (19) and a button (20).