CN214100101U - 1553B electromagnetic drop connector - Google Patents

Abstract

The utility model provides a 1553B electromagnetism connector that drops, this connector include the plug and the socket of mutual butt joint, the plug includes plug housing subassembly, installs electromagnetism locking mechanism and the separable set that drops in plug housing subassembly, the socket include with the socket housing subassembly that the plug pegged graft socket housing subassembly internally mounted have with electromagnetism drops locking mechanism matched with stop collar subassembly, realizes the locking and the separation of plug and socket. The utility model discloses the product is for possessing two kinds of separation methods of mechanical separation and electromagnetic separation, the electromagnetism that can transmit 1553B signal is used for rocket or guided missile connector that drops. The utility model makes the separation mode more flexible and simple, and improves the reliability of separation and falling; on the other hand, the 1553B signal with high transmission rate, high reliability, good real-time performance and mature technology is added, the requirements on the real-time performance and the reliability of data communication are greatly improved, and the requirement on information diversification of airborne equipment can be met.

Description

1553B electromagnetic drop connector

Technical Field

The utility model belongs to the technical field of the electromagnetism connector that drops, a 1553B electromagnetism connector that drops for on rocket or guided missile is related to.

Background

The traditional drop connector mainly realizes the separation of the plug and the socket in a mechanical separation mode, the separation method is not flexible and simple, an electromagnetic drop connector is also arranged in the prior art, but 1553B signals cannot be transmitted, the electromagnetic structure is not designed independently, and the signals are mutually interfered when being transmitted, so that the normal transmission of the signals is influenced.

The Chinese patent with the application number of 201410332779.7 discloses a separation and drop connector assembly, a plug and a socket thereof, the separation and drop connector assembly comprises the plug and the socket, a steel ball locking mechanism on the socket comprises a first steel ball, an unlocking electromagnet and an anti-drop sleeve assembled on a socket shell in a guiding and moving mode, a push spring is arranged between the anti-drop sleeve and the socket shell, a locking groove matched with the first steel ball in a locking mode is formed in the inner wall of the plug shell of the plug, a plug component on the plug shell comprises a plug first contact, a socket component on the socket shell comprises a socket first contact of which the front end is used for being electrically connected with the plug first contact in an inserting mode, and the rear end of the socket first contact is electrically connected with the unlocking electromagnet. This separation connector subassembly that drops can not realize the transmission of 1553B signal, and in addition, the electromagnetism structure is not independent design, can influence each other with the electromagnetism subassembly when product signal transmission, can not guarantee that the electromagnetism drops the structure and normally works.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a 1553B electromagnetism connector that drops. The utility model discloses the product is for possessing two kinds of separation methods of mechanical separation and electromagnetic separation, the electromagnetism that can transmit 1553B signal is used for rocket or guided missile connector that drops.

In order to achieve the above purpose, the utility model adopts the following technical scheme: 1553B electromagnetism connector that drops, this connector include the plug and the socket of mutual butt joint, the plug includes plug housing subassembly, installs electromagnetism locking mechanism and the separable set that drops in plug housing subassembly, the socket include with the socket housing subassembly that the plug was pegged graft socket housing subassembly internally mounted have with electromagnetism locking mechanism matched with stop collar subassembly that drops realizes the locking and the separation of plug and socket.

Furthermore, the plug shell component comprises a plug shell, a front needle insulator, a rear needle insulator, a first snap spring, a plurality of first contact pins, a plurality of second contact pins, a plurality of third contact pins and a plurality of 1553B signal contact pin contact bodies, wherein the front needle insulator and the rear needle insulator are installed in the plug shell through the first snap spring, through holes for the electromagnetic falling-off locking mechanisms to penetrate through are formed in the centers of the front needle insulator and the rear needle insulator, a hole cavity for installing a separating component is formed beside the through holes, a hole cavity is formed beside the through holes, the separating component is installed in the hole cavity and comprises a power-assisted column which can be installed in the hole cavities of the front needle insulator and the rear needle insulator in a front-and-back movement mode, the tail end of the power-assisted column and the front end of the front needle insulator are installed in a blocking and matching mode, a power-assisted spring is installed in the power-assisted column, and when the plug is in butt joint with the socket, the power-assisted column is stressed to compress the power-assisted spring, and after the electromagnetic falling-off locking mechanism is unlocked, the power-assisted spring is released, so that the plug is pushed to be separated from the socket; a plurality of first pin, a plurality of second pin, a plurality of third pin and a plurality of 1553B signal pin contact bodies are axially arranged in the front pin insulator and the rear pin insulator respectively.

Furthermore, the electromagnetic drop locking mechanism comprises a pull rod, a pull rod tail sleeve, a pull rod outer sleeve, a front sleeve, an outer sleeve, a separation spring, a locking steel ball, a limiting steel ball, a tail attached shell, a movable armature, a reset spring, an electromagnet shell, a fixed armature and an electromagnet winding, wherein the fixed armature is arranged at the tail end of the electromagnet shell, the front end of the electromagnet shell is connected with the tail attached shell, the movable armature capable of moving left and right is arranged at the front end of the fixed armature, the electromagnet winding is arranged outside the fixed armature and the movable armature, the movable armature and the fixed armature are coaxially arranged, the center of the front end of the fixed armature is provided with a limiting sleeve protruding forwards, the tail end of the pull rod is fixedly connected with the pull rod tail sleeve, the tail end of the pull rod tail sleeve penetrates out of the limiting sleeve, the reset spring is arranged in the limiting sleeve and sleeved on the periphery of the pull rod tail sleeve, and the front end of the pull rod penetrates out of the movable armature, the outer periphery of the front end of the pull rod is sleeved with a pull rod outer sleeve, the tail end of the pull rod outer sleeve is provided with a limiting table protruding towards the outer periphery, the tail end face of the limiting table is attached to the front end face of the movable armature, the outer periphery of the pull rod outer sleeve is sequentially sleeved with a separating spring and a front sleeve, a locking steel ball is arranged in a radial through hole formed in the front end of the pull rod outer sleeve, the front end of the pull rod is provided with an inclined plane used for limiting the locking steel ball, an outer sleeve is sleeved on the outer peripheries of the separating spring and the front sleeve, the tail end of the outer sleeve is provided with a positioning table, the inner part of the positioning table is abutted to the limiting table of the pull rod outer sleeve, and the positioning table is fixed to a tail attachment shell and an electromagnet shell through screws.

Furthermore, a limiting steel ball in stop fit with the outer sleeve is further arranged in a radial through hole formed in the rear end of the locking steel ball of the pull rod outer sleeve and used for limiting the axial movement range of the front sleeve, and a slide way in sliding fit with the locking steel ball and the limiting steel ball is further arranged inside the front sleeve.

Further, the socket housing assembly comprises a socket housing, a hole front insulator, a hole rear insulator, a second snap spring, a plurality of first jacks, a plurality of second jacks, a plurality of third jacks and a plurality of 1553B signal jack contacts, wherein the hole front insulator and the hole rear insulator are installed inside the socket housing through the second snap spring, the centers of the insulator before and after the hole are provided with through holes for installing a spacing sleeve component, the limiting sleeve assembly comprises a limiting sleeve and a limiting sleeve tail pipe which is fixed outside the front end of the limiting sleeve through threaded connection, a gasket, a washer and a nut are sequentially arranged on the periphery of the tail end of the limiting sleeve, the limiting sleeve is matched with the insulator in front of the hole and the insulator behind the hole through the tail pipe of the limiting sleeve and the nut to realize fixation, a cylindrical hole which is axially arranged is arranged in the front end of the limiting sleeve, and an annular groove is arranged at the front end in the cylindrical hole;

the first jacks, the second jacks, the third jacks and the 1553B signal jack contact bodies are axially arranged in the hole front insulator and the hole rear insulator respectively and are used for being in butt joint with the first contact pins, the second contact pins, the third contact pins and the 1553B signal contact pins respectively.

Further, the fixed armature is a direct current solenoid electromagnet.

Furthermore, the power assisting column is of a hollow cylinder structure with one end being an opening, a first annular boss extending towards the periphery is arranged at the opening, a second annular boss protruding inwards is arranged at the front end of the insulator in front of the needle, one end of the power assisting column, provided with the first annular boss, is arranged in the insulator in front of the needle, and the first annular boss and the second annular boss are matched to limit the axial moving range of the power assisting column.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses the product is for possessing two kinds of separation methods of mechanical separation and electromagnetic separation, the electromagnetism that can transmit 1553B signal is used for rocket or guided missile connector that drops. The electromagnetic falling-off locking mechanism adopted by the utility model has the advantages that on one hand, the connector is more convenient to separate, and on the other hand, the separation mode is added, so that the electromagnetic falling-off locking mechanism is double-insurance and more reliable; the problem of traditional connector that drops can only realize the separation of plug and socket through the mode of mechanical separation, separation mode is single promptly is solved, the separation mode that has added electromagnetism and has dropped. Meanwhile, with the continuous upgrade of airborne and rocket-borne electronic systems, the requirements on the real-time performance and reliability of data communication are greatly improved, so that 1553B signals with high transmission rate, high reliability, good real-time performance and mature technology are added. In addition, when the structure is designed, the product signal transmission and the electromagnetic assembly are considered not to be influenced mutually, the electromagnetic falling structure can work normally, the electromagnetic structure is separated independently, and the electromagnetic falling structure is shielded through the metal shell structure, so that the mutual interference with the transmission signal is avoided.

Drawings

Fig. 1 is a schematic view of the butt (locking) state of the plug and the socket of the present invention;

FIG. 2 is a schematic structural view of the plug housing assembly;

FIG. 3 is a schematic view of the mounting structure of the electromagnetic dropout locking mechanism and the plug housing assembly;

FIG. 4 is a schematic view of the mounting structure of the receptacle housing assembly and the stop collar assembly;

FIG. 5 is a schematic view of the mounting of a 1553B signal jack contact;

in the figure: 1-a plug housing assembly; 101-a plug housing; 102-pre-needle insulator; 1021-a second annular boss; 103-pin rear insulator; 104-a separation assembly; 1041-a power-assisted column; 10411-a first annular boss; 1042-a booster spring; 105-a first snap spring; 106-first pin; 107-second pin; 108-third pin; 109 and 1553B signal pin contact bodies;

2-an electromagnetic drop locking mechanism; 201-a pull rod; 202-pull rod tail sleeve; 203-a pull rod outer sleeve; 2031-a limit table; 204-front sleeve; 205-outer sleeve; 2051-positioning table; 206-a separation spring; 207-locking steel balls; 208-a limit steel ball; 209-tail attached shell; 210-a movable armature; 211-a return spring; 212-electromagnet housing; 213-a fixed armature; 2131-a limiting sleeve; 214-an electromagnet winding;

3-a receptacle housing assembly; 301-a socket housing; 302-hole front insulator; 303-hole back insulator; 304-a second circlip; 305-a first receptacle; 306-a second receptacle; 307-a third receptacle; 308-1553B signal jack contact; 309-a gasket; 310-a gasket;

4-a stop collar assembly; 401-a stop collar; 4011-cylindrical bore; 4012-an annular groove; 402-stop collar tail pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, a 1553B electromagnetic drop connector comprises a plug and a socket which are butted with each other, wherein the plug comprises a plug housing assembly 1 and an electromagnetic drop locking mechanism 2 installed in the plug housing assembly 1, the socket comprises a socket housing assembly 3 spliced with the plug, and a limit sleeve assembly 4 matched with the electromagnetic drop locking mechanism 2 is installed inside the socket housing assembly 3 to realize the locking and the separation of the plug and the socket.

The plug housing assembly 1 comprises a plug housing 101, a front pin insulator 102, a rear pin insulator 103, a separating assembly 104, a first snap spring 105, a plurality of first pins 106, a plurality of second pins 107, a plurality of third pins 108 and a plurality of 1553B signal pin contacts 109, wherein the front pin insulator 102 and the rear pin insulator 103 are installed in the plug housing 101 through the first snap spring 105, through holes for the electromagnetic drop locking mechanisms 2 to penetrate out are formed in the centers of the front pin insulator 102 and the rear pin insulator 103, cavities are formed beside the through holes, the separating assembly 104 is installed in the cavities, the separating assembly 104 comprises a power assisting column 1041 which is installed in the cavities of the front pin insulator 102 and the rear pin insulator 103 in a manner of moving back and forth, the tail end of the power assisting column 1041 is installed between the front end of the front pin insulator in a blocking and matching manner, a power assisting spring 1042 is installed in the power assisting column 1041, when the plug is in butt joint with the socket, the power-assisted column 1041 is stressed to compress the power-assisted spring 1042, and after the electromagnetic falling-off locking mechanism 2 is unlocked, the power-assisted spring 1042 is released, so that the plug is pushed to be separated from the socket; a plurality of first pins 106, a plurality of second pins 107, a plurality of third pins 108 and a plurality of 1553B signal pin contacts 109 are axially mounted in the front pin insulator 102 and the back pin insulator 103, respectively.

The electromagnetic falling-off locking mechanism 2 comprises a pull rod 201, a pull rod tail sleeve 202, a pull rod outer sleeve 203, a front sleeve 204, an outer sleeve 205, a separation spring 206, a locking steel ball 207, a limiting steel ball 208, a tail attached shell 209, a movable armature 210, a reset spring 211, an electromagnet shell 212, a fixed armature 213 and an electromagnet winding 214, wherein the fixed armature 213 is installed at the tail end of the electromagnet shell 212, the front end of the electromagnet shell 212 is connected with the tail attached shell 209, the front end of the fixed armature 213 is provided with the movable armature 210 capable of moving left and right, the electromagnet winding 214 is arranged outside the fixed armature 213 and the movable armature 210, the movable armature 210 and the fixed armature 213 are coaxially arranged, the center of the front end of the fixed armature 213 is provided with a limiting sleeve 2131 protruding forwards, the tail end of the pull rod 201 is fixedly connected with the pull rod tail sleeve 202, the tail sleeve 202 of the pull rod penetrates out of the limiting sleeve 2131, the reset spring 211 is arranged in the limiting sleeve 2131 and sleeved on the periphery of the pull rod tail sleeve 202, the front end of the pull rod 201 penetrates out of the movable armature 210, a pull rod outer sleeve 203 is sleeved on the periphery of the front end of the pull rod 201, a limiting table 2031 protruding towards the periphery is arranged at the tail end of the pull rod outer sleeve 203, the tail end face of the limiting table 2031 is attached to the front end face of the movable armature 210, a separating spring 206 and a front sleeve 204 are sequentially sleeved on the periphery of the pull rod outer sleeve 203, a locking steel ball 207 is arranged in a radial through hole formed in the front end of the pull rod outer sleeve 203, an inclined face used for limiting the locking steel ball 207 is arranged at the front end of the pull rod 201, an outer sleeve 205 is sleeved on the peripheries of the separating spring 206 and the front sleeve 204, a positioning table 2051 is arranged at the tail end of the outer sleeve 205, the inside of the positioning table 2051 is abutted to the limiting table 2031 of the pull rod outer sleeve 203, and the positioning table 2051 is fixed with an auxiliary shell 209 and an electromagnet shell 212 through screws.

A limiting steel ball 208 in blocking fit with the outer sleeve 205 is further arranged in a radial through hole formed in the rear end of the locking steel ball 207 of the pull rod outer sleeve 203 and used for limiting the axial movement range of the front sleeve 204, and a slide way in sliding fit with the locking steel ball 207 and the limiting steel ball 208 is further arranged inside the front sleeve 204.

The socket shell component 3 comprises a socket shell 301, a hole front insulator 302, a hole rear insulator 303, a second clamp spring 304, a plurality of first jacks 305, a plurality of second jacks 306, a plurality of third jacks 307 and a plurality of 1553B signal jack contact bodies 308, wherein the hole front insulator 302 and the hole rear insulator 303 are installed inside the socket shell 301 through the second clamp spring 304, through holes for installing the stop collar component 4 are formed in the centers of the hole front insulator 302 and the hole rear insulator 303, the stop collar component 4 comprises a stop collar 401 and a stop collar tail pipe 402 fixed outside the front end of the stop collar 401 through threaded connection, a gasket 309, a gasket 310 and a nut 311 are sequentially installed on the periphery of the tail end of the stop collar 401, the stop collar 401 is matched with the hole front insulator 302 and the hole rear insulator 303 through the stop collar tail pipe 402 and the nut 311 to realize fixation with the hole front insulator 302 and the hole rear insulator 303, a column-shaped hole 4011 arranged axially is arranged inside the front end of the stop collar 401, an annular groove 4012 is arranged at the front end in the cylindrical hole 4011;

the first plurality of jacks 305, the second plurality of jacks 306, the third plurality of jacks 307, and the 1553B signal jack contacts 308 are axially mounted in the pre-bore insulator 302 and the post-bore insulator 303, respectively, for interfacing with the first plurality of pins 106, the second plurality of pins 107, the third plurality of pins 108, and the 1553B signal pin contacts 109, respectively.

The plurality of first pins 106 and the plurality of first jacks 305 are 12# contacts, respectively, the plurality of second pins 107 and the plurality of second jacks 306 are 16# contacts, respectively, and the plurality of third pins 108 and the plurality of third jacks 307 are 20# contacts, respectively.

The plurality of 1553B signal pin contacts 109 and the plurality of 1553B signal jack contacts 308 are # 8 twisted pair shield contacts, respectively.

The other end of the tail attached shell 209 is connected with the plug shell 101, and the tail attached shell 209 is made of metal materials and used for realizing shielding, ensuring that the signal transmission of a product and an electromagnetic assembly are not affected with each other, and enabling the electromagnetic falling structure to work normally.

The power assisting column 1041 is of a hollow cylinder structure with one end being an opening, a first annular boss 10411 extending towards the periphery is arranged at the opening, a second annular boss 1021 protruding inwards is arranged at the front end of the front needle insulator 102, one end, provided with the first annular boss 10411, of the power assisting column 1041 is arranged in the front needle insulator 102, and the first annular boss 10411 is matched with the second annular boss 1021 to limit the axial moving range of the power assisting column 1041.

The utility model discloses the theory of operation: the 1553B electromagnetic drop connector is divided into a plug and a socket, a locking device with a central pull rod 201 and steel ball structure is adopted in the product, a direct current solenoid electromagnet is adopted for electromagnetic separation, and the connector is automatically separated by combining a mechanical limiting mechanism.

When the plug and the socket are in butt joint, the plug extends forwards towards the butt joint end of the socket, the electromagnetic drop locking mechanism 2 of the plug, the reset spring 211 pushes the pull rod 201, the pull rod 201 drives the movable armature 210 to move towards one end away from the fixed armature 213 together, the locking steel ball 207 in the front sleeve 204 is pushed into the limit sleeve 401, the locking steel ball 207 is simultaneously clamped in the annular groove 4012 of the limit sleeve 401 and the radial through hole of the front sleeve 204, the pull rod 201 continues to move forwards for a short distance, so that the locking steel ball 207 cannot retract into the front sleeve 204, the locking steel ball 207 connects the limit sleeve 401 and the front sleeve 204 together, locking is realized, at the moment, a contact pin and a jack are in contact conduction, the boosting column 1041 in the separation assembly 104 is extruded by the hole front insulator 302 of the socket, and the boosting spring 1042 is compressed to store energy;

when the plug is separated from the socket, the electromagnet is electrified, and after the electromagnet is electrified, the electromagnet winding 214 generates a magnetic field, so that the movable armature 210 moves axially towards the fixed armature 213, the pull rod 201 is driven to move leftwards, and a space is provided for the retraction of the locking steel ball 207. After the locking steel ball 207 loses the inclined plane limit of the front end of the pull rod 201, the locking steel ball retracts into the pull rod outer sleeve 203 under the action of the separation spring 206, unlocking is achieved at the moment, meanwhile, the compressed power-assisted spring 1042 in the separation assembly 104 is released, so that the plug is pushed to be separated from the socket, at the moment, all contact pins and jacks are disconnected, and the power supply is cut off.

On one hand, the product of the utility model is added with an electromagnetic shedding structure on the basis of a shedding connector separated by the traditional machine, so that the separation mode is more flexible and simple, and the reliability of separation and shedding is improved; on the other hand, the 1553B signal with high transmission rate, high reliability, good real-time performance and mature technology is added, the requirements on the real-time performance and the reliability of data communication are greatly improved, and the requirement on information diversification of airborne equipment can be met.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (7)

1.1553B electromagnetic drop connector, which is characterized in that the connector comprises a plug and a socket which are mutually butted, the plug comprises a plug shell component, an electromagnetic drop locking mechanism and a separation component which are arranged in the plug shell component, the socket comprises a socket shell component which is spliced with the plug, and the socket shell component is internally provided with a limit sleeve component which is matched with the electromagnetic drop locking mechanism to realize the locking and separation of the plug and the socket.

2. The 1553B electromagnetic release connector as recited in claim 1, wherein the plug housing assembly comprises a plug housing, a front pin insulator, a rear pin insulator, a first snap spring, a plurality of first contact pins, a plurality of second contact pins, a plurality of third contact pins and a plurality of 1553B signal contact pin contacts, the front pin insulator and the rear pin insulator are installed in the plug housing through the first snap spring, through holes for the electromagnetic release locking mechanisms to penetrate through are formed in the centers of the front pin insulator and the rear pin insulator, hole cavities for installing separating assemblies are formed beside the through holes, hole cavities are formed beside the through holes, separating assemblies are installed in the hole cavities, the separating assemblies comprise auxiliary force columns which are installed in the hole cavities of the front pin insulator and the rear pin insulator in a back-and-forth movement manner, and the tail ends of the auxiliary force columns are installed in a blocking and matching manner with the front ends of the front pin insulator, the power-assisted spring is arranged in the power-assisted column, when the plug is in butt joint with the socket, the power-assisted column is stressed to compress the power-assisted spring, and after the electromagnetic falling-off locking mechanism is unlocked, the power-assisted spring is released, so that the plug is pushed to be separated from the socket; a plurality of first pin, a plurality of second pin, a plurality of third pin and a plurality of 1553B signal pin contact bodies are axially arranged in the front pin insulator and the rear pin insulator respectively.

3. The 1553B electromagnetic drop connector as claimed in claim 1, wherein the electromagnetic drop locking mechanism comprises a pull rod, a pull rod tail sleeve, a pull rod outer sleeve, a front sleeve, an outer sleeve, a separation spring, a locking steel ball, a limiting steel ball, a tail attachment shell, a movable armature, a reset spring, an electromagnet shell, a fixed armature and an electromagnet winding, the fixed armature is installed at the tail end of the electromagnet shell, the front end of the electromagnet shell is connected with the tail attachment shell, the movable armature capable of moving left and right is arranged at the front end of the fixed armature, the electromagnet winding is arranged outside the fixed armature and the movable armature, the movable armature and the fixed armature are coaxially arranged, a limiting sleeve protruding forwards is arranged at the center of the front end of the fixed armature, the tail end of the pull rod is fixedly connected with the pull rod tail sleeve, the tail end of the pull rod tail sleeve penetrates out of the limiting sleeve, the reset spring is arranged in the limiting sleeve and is sleeved on the periphery of the pull rod tail sleeve, the front end of the pull rod penetrates out of the movable armature, a pull rod outer sleeve is sleeved on the periphery of the front end of the pull rod, a limiting table protruding towards the periphery is arranged at the tail end of the pull rod outer sleeve, the tail end face of the limiting table is attached to the front end face of the movable armature, a separating spring and a front sleeve are sequentially sleeved on the periphery of the pull rod outer sleeve, a locking steel ball is arranged in a radial through hole formed in the front end of the pull rod outer sleeve, an inclined plane used for limiting the locking steel ball is arranged at the front end of the pull rod, an outer sleeve is sleeved on the periphery of the separating spring and the front sleeve, a positioning table is arranged at the tail end of the outer sleeve, the inside of the positioning table is abutted to the limiting table of the pull rod outer sleeve, and the positioning table is fixed with a tail attachment shell and an electromagnet shell through screws.

4. The 1553B electromagnetic drop connector as claimed in claim 3, wherein a limit steel ball in stop fit with the outer sleeve is further arranged in a radial through hole formed at the rear end of the locking steel ball of the pull rod outer sleeve for limiting the axial movement range of the front sleeve, and a slide way in sliding fit with the locking steel ball and the limit steel ball is further arranged inside the front sleeve.

5. The 1553B electromagnetic drop connector of claim 1, wherein the socket shell assembly comprises a socket shell, a hole front insulator, a hole rear insulator, a second snap spring, a plurality of first jacks, a plurality of second jacks, a plurality of third jacks and a plurality of 1553B signal jack contacts, the hole front insulator and the hole rear insulator are installed inside the socket shell through the second snap spring, through holes for installing a stop collar assembly are formed in the centers of the hole front insulator and the hole rear insulator, the stop collar assembly comprises a stop collar and a stop collar tail pipe fixed outside the front end of the stop collar through threaded connection, a gasket, a washer and a nut are sequentially installed on the periphery of the tail end of the stop collar, the stop collar is matched with the hole front insulator and the hole rear insulator through the stop collar tail pipe and the nut to realize fixation with the hole front insulator and the hole rear insulator, a cylindrical hole is axially arranged inside the front end of the stop collar, an annular groove is arranged at the front end in the cylindrical hole;

the first jacks, the second jacks, the third jacks and the 1553B signal jack contact bodies are axially arranged in the hole front insulator and the hole rear insulator respectively and are used for being in butt joint with the first contact pins, the second contact pins, the third contact pins and the 1553B signal contact pins respectively.

6. The 1553B electromagnetic drop connector of claim 3, wherein the fixed armature is a DC solenoid electromagnet.

7. The 1553B electromagnetic drop connector as claimed in claim 2, wherein the power-assisted column is a hollow cylinder structure with an opening at one end, a first annular boss extending towards the periphery is arranged at the opening, a second annular boss protruding inwards is arranged at the front end of the front needle insulator, one end of the power-assisted column with the first annular boss is arranged in the front needle insulator, and the first annular boss and the second annular boss cooperate to limit the axial movement range of the power-assisted column.

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