Unlocking system

Abstract

The utility model provides an unlocking system, which relates to the technical field of mechanical equipment and comprises a sensor for detecting the state of an artillery; the pure mechanical logic unlocking device is linked with the sensor; the connecting structure is used for connecting the sensor and the pure mechanical logic unlocking device; the sensor comprises a body which is internally provided with an accommodating cavity; a wire rope; the pull rod slidably penetrates through the accommodating cavity; the other end of the steel wire rope is connected with the connecting structure; the pressure spring is arranged in the accommodating cavity and used for enabling the pull rod to move towards the direction of the steel wire rope; the middle part of the first lever is rotationally mounted at a specified position, and the lower part is contacted with the circumferential side surface of the cam; the transmission assembly is in transmission connection with the upper portion of the first lever and one end of the pull rod. Induction and detection of the artillery state are achieved through a mechanical structure. Through the arrangement of the body, the steel wire rope, the pull rod, the first lever, the transmission assembly and the compression spring, linkage between the pure mechanical logic unlocking device and the cam is finally achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and in particular to an unlocking system. Background Art

[0002] The artillery has the following two states:

[0003] State 1: The artillery is in the direction firing range of ±30°, the elevation firing range of 18° - 70°, and the ammunition feeding and conveying device is in the initial position;

[0004] State 2: The artillery is in the direction firing range of +40° - +50°, the elevation firing range of 0° - 20°, and the ammunition feeding and conveying device is in the initial position;

[0005] The artillery includes a plurality of cams, and the cams are linked with the mechanism for adjusting the state of the artillery; the direction firing range, elevation firing range, and position of the ammunition feeding and conveying device of the artillery respectively correspond to a number of rotatable cams (a total of 5 cams). During the process of adjusting the state of the artillery, the position of the protrusion on the circumferential side of the corresponding cam changes;

[0006] When the artillery meets the requirements of State 1, the manual firing operation is allowed to be effective; when the artillery meets the requirements of State 2, the electric firing operation is allowed to be effective; otherwise, the manual firing or electric firing operation is invalid. In particular, if the ammunition feeding and conveying device is not in the initial position, the manual firing or electric firing operation is invalid.

[0007] In order to fully or partially meet the above requirements, an unlocking system is designed. Summary of the Utility Model

[0008] In view of the above situation, the utility model provides an unlocking system, aiming to fully or partially meet the requirements put forward in the above background art.

[0009] To achieve the above object, the utility model provides the following technical solutions:

[0010] In a first aspect, the utility model provides an unlocking system, including:

[0011] A sensor for detecting the state of the artillery;

[0012] A pure mechanical logic unlocker linked with the sensor;

[0013] A connection structure for connecting the sensor and the pure mechanical logic unlocker;

[0014] Among them, the sensor includes:

[0015] A body with an accommodation cavity therein;

[0016] A steel wire rope;

[0017] The pull rod slides through the accommodation cavity longitudinally; one end of the pull rod is connected to one end of the steel wire rope, and the other end of the steel wire rope is connected to the connection structure;

[0018] The compression spring is arranged in the accommodation cavity and is used to move the pull rod in the direction of the steel wire rope;

[0019] The first lever is rotatably installed in a specified position at the middle part, and the lower part is in rolling or sliding contact with the circumferential side surface of the cam;

[0020] The transmission assembly is used for drivingly connecting the upper part of the first lever and one end of the pull rod.

[0021] In some embodiments of the present invention, the transmission assembly includes:

[0022] The connecting rod, one end of which is rotatably connected to the upper part of the first lever and the other end of which is rotatably connected to one end of the second lever;

[0023] The second lever, the other end of which is rotatably and slidably connected to one end of the pull rod, and the middle part of the second lever is rotatably installed in a specified position.

[0024] In some embodiments of the present invention, a roller is installed at the lower part of the first lever, and the roller is in rolling contact with the circumferential side surface of the cam.

[0025] In some embodiments of the present invention, the sensor further includes a body joint connected to the body, and the body joint is used to block one end of the accommodation cavity; the pull rod slides through the body joint.

[0026] In some embodiments of the present invention, the sensor further includes the following components used in cooperation:

[0027] The proximity switch is installed on the outer side of the body;

[0028] The induction block is installed on the upper part of the first lever.

[0029] In some embodiments of the present invention, the pure mechanical logic unlocker includes:

[0030] The body cover;

[0031] The lock tongue penetrates through the body cover longitudinally; a compression spring for moving it upward is connected to the lower end of the lock tongue; there is at least one convex block on the front side of the lock tongue and at least two convex blocks are arranged longitudinally and spaced apart on the rear side; a stop block is connected to the upper end of the lock tongue;

[0032] The first lock rod is arranged horizontally and is located at the rear side of the lock tongue; one end of the first lock rod is connected to a sensor, and this sensor is a device for sensing that the artillery is in the direction firing range of ±30°, and the other end slides through the right side of the body cover;

[0033] The second locking rod is horizontally arranged and located in front of the locking tongue; one end of the first locking rod is connected to a sensor which is a device for sensing that the gun is in the elevation range of 18° to 70°, and the other end slides through the right side of the body cover;

[0034] The loading-related locking rod is horizontally arranged below the first locking rod and located behind the locking tongue; one end of the loading-related locking rod is connected to a sensor which is a device for sensing that the feeding and loading device is in the initial position, and the other end slides through the right side of the body cover;

[0035] Wherein, notches are formed on the first locking rod, the second locking rod and the loading-related locking rod, and each notch can be aligned or staggered with the corresponding convex block.

[0036] In some embodiments of the present invention, the pure mechanical logic unlocker further includes a plurality of return springs which are installed on the right side of the body cover and used to move the first locking rod, the second locking rod and the loading-related locking rod to the right respectively.

[0037] In some embodiments of the present invention, the pure mechanical logic unlocker further includes a tail cover for covering the return springs.

[0038] In some embodiments of the present invention, the pure mechanical logic unlocker further includes:

[0039] The third locking rod is horizontally arranged between the first locking rod and the loading-related locking rod and located behind the locking tongue; one end of the third locking rod is connected to a sensor which is a device for sensing that the gun is in the azimuth range of +40° to +50°, and the other end slides through the right side of the body cover;

[0040] The fourth locking rod is horizontally arranged below the second locking rod and located in front of the locking tongue; one end of the fourth locking rod is connected to a sensor which is a device for sensing that the gun is in the elevation range of 0° to 20°, and the other end slides through the right side of the body cover;

[0041] Two dial plates, one of which is fixed on the first locking rod and the second locking rod and can push the third locking rod and the fourth locking rod to the left; the other is fixed on the third locking rod and the fourth locking rod and can push the first locking rod and the second locking rod to the left;

[0042] Wherein, at least two convex blocks are longitudinally arranged at intervals on the front side of the locking tongue, and at least three convex blocks are longitudinally arranged at intervals on the rear side; notches are formed on both the third locking rod and the fourth locking rod, and each notch can be aligned or staggered with the corresponding convex block.

[0043] In some embodiments of the present invention, the connection structure includes:

[0044] A connecting rope;

[0045] The first connector is connected to one end of the connecting rope and is used to connect with the sensor;

[0046] The second connector is connected to the other end of the connecting rope and is used to connect with the pure mechanical logic unlocker;

[0047] The sheath is such that the connecting rope slides through it;

[0048] The end connectors are sleeved on both ends of the sheath, and the connecting rope slides through the end connectors; there are positioning grooves on the outer side walls of the end connectors.

[0049] The embodiments of the present utility model at least have the following advantages or beneficial effects:

[0050] The sensor is used to detect the state of the artillery. The connection structure is used to connect the sensor and the pure mechanical logic unlocker. The pure mechanical logic unlocker is linked with the sensor through the connection structure to perform corresponding actions. The induction and detection of the artillery state are realized by a mechanical structure. Through the settings of the body, wire rope, pull rod, first lever, transmission component and compression spring, the linkage between the pure mechanical logic unlocker and the cam is finally realized.

[0051] Other features and advantages of the present utility model will be described in the subsequent description, and, partly, will become obvious from the description, or will be understood by implementing the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0053] Figure 1 It is a schematic structural diagram of the sensor;

[0054] Figure 2 It is a schematic structural diagram inside the body, body connector, protective cover and wire connector;

[0055] Figure 3 It is a schematic structural diagram of the logic unlocker;

[0056] Figure 4 For Figure 1 It is a schematic structural diagram after removing the body cover, seat plate and cover plate;

[0057] Figure 5 It is a schematic structural diagram of the lock tongue;

[0058] Figure 6 It is a schematic structural diagram of the connection structure.

[0059] Icon:

[0060] 1 - Body, 2 - Body joint, 3 - Steel wire joint, 4 - Connecting rod, 5 - Pull rod, 6 - Second lever, 7 - First lever, 8 - Roller, 9 - Protective cover, 10 - Nut, 14 - Third pin shaft, 15 - First pin shaft, 16 - Compression spring, 17 - Steel wire rope, 18 - Proximity switch,

[0061] 20 - First joint, 21 - Second joint, 22 - Sheath, 23 - End joint,

[0062] 24 - Seat plate, 25 - Body cover, 26 - Cover plate, 27 - Lock tongue, 28 - Stop block, 29 - Bump, 30 - Tail cover, 31 - First lock rod, 32 - Second lock rod, 33 - Third lock rod, 34 - Fourth lock rod, 35 - Ammunition feeding interlock rod, 36 - Dial plate, 37 - Return spring. Detailed implementation manners

[0063] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0064] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the embodiments of the present invention.

[0065] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0066] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0067] The embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0068] Refer to Figures 1 to 6 , this embodiment provides an unlocking system, including a sensor, a pure mechanical logic unlocker, and a connection structure. The sensor is used to detect the state of the artillery, the connection structure is used to connect the sensor and the pure mechanical logic unlocker, and the pure mechanical logic unlocker is linked with the sensor through the connection structure to perform corresponding actions.

[0069] Refer to Figures 1 to 2 , the sensor includes: a body 1, a body joint 2, a protective cover 9, a wire joint 3, a wire rope 17, a pull rod 5, a nut 10, a compression spring 16, a first lever 7, and a transmission assembly.

[0070] The body 1 has an accommodation cavity therein.

[0071] The body joint 2 is connected to the body 1 and is used to seal one end of the accommodation cavity.

[0072] The protective cover 9 covers the outside of the body joint 2 and is connected to one end of the body 1 by screws; a cavity is left between the protective cover 9 and the body joint 2.

[0073] The wire joint 3 is connected to the protective cover 9 and is used to seal one end of the protective cover 9.

[0074] One end of the wire rope 17 passes through the wire joint 3 and then extends into the cavity. A protective layer is provided outside the wire rope 17.

[0075] The pull rod 5 slides through the accommodation cavity and the body joint 2; one end of the pull rod 5 is located in the cavity and is connected to one end of the wire rope 17; the other end of the wire rope 17 is connected to the pure mechanical logic unlocker.

[0076] The nut 10 is movably arranged in the accommodation cavity and is threadedly connected to the pull rod 5.

[0077] The compression spring 16 is arranged in the accommodation cavity and is used to move the pull rod 5 in the direction of the wire rope 17.

[0078] In a specific implementation scenario, the above-mentioned body 1, body joint 2, protective cover 9, wire joint 3, pull rod 5, and compression spring 16 are coaxially arranged.

[0079] The middle part of the first lever 7 is rotatably installed at a specified position through a first pin shaft 15, and the lower part is in rolling or sliding contact with the circumferential side surface of a cam (not shown in the figure). In a specific implementation scenario, a roller 8 is installed at the lower part of the first lever 7, and the roller 8 is in rolling contact with the circumferential side surface of the cam.

[0080] The transmission assembly is used for drivingly connecting the upper part of the first lever 7 and one end of the pull rod 5, so that when the first lever 7 rotates around the first pin shaft 15, the pull rod 5 can be driven to move horizontally. The transmission assembly includes: a connecting rod 4 and a second lever 6.

[0081] One end of the connecting rod 4 is rotatably connected to the upper part of the first lever 7, and the other end is rotatably connected to one end of the second lever 6.

[0082] The other end of the second lever 6 is rotatably and slidably connected to one end of the pull rod 5 through a second pin shaft, and the middle part of the second lever 6 is rotatably mounted at a specified position through a third pin shaft 14.

[0083] The sensor may further include a proximity switch 18 and an induction block used in cooperation.

[0084] The proximity switch 18 is mounted on the outside of the body 1, and the induction block is mounted on the upper part of the first lever 7. When the first lever 7 rotates counterclockwise, the induction block approaches the proximity switch 18, and the proximity switch 18 obtains a proximity signal; when the first lever 7 rotates clockwise, the induction block moves away from the proximity switch 18, and the proximity switch 18 obtains a non-proximity signal. Through the arrangement of the proximity switch 18 and the induction block, it is convenient to obtain the state information of the artillery.

[0085] The working principle of the above-mentioned sensor is as follows:

[0086] During the process of the cam rotating clockwise, the protrusion on the cam squeezes the lower end of the first lever 7 upward, causing the first lever 7 to rotate counterclockwise. Then, through the transmission of the connecting rod 4 and the second lever 6, the pull rod 5 drives the wire rope 17 to move a certain distance to the right, so that the pure mechanical logic unlocker performs corresponding actions to meet the corresponding requirements; as the cam continues to rotate clockwise, the protrusion on the cam separates from the first lever 7, and under the restoring force of the compression spring 16, the pull rod 5 moves leftward to reset, and drives the first lever 7 to rotate clockwise through the pull rod 5 and the transmission assembly, so that the lower end of the first lever 7 maintains rolling or sliding contact with other positions of the cam.

[0087] The pure mechanical logic unlocker is configured as follows: when the artillery meets the requirements of state 1 (state 1 pointed out in the background art), the manual firing operation is allowed to be effective; when the artillery meets the requirements of state 2 (state 2 pointed out in the background art), the electric firing operation is allowed to be effective; otherwise, the manual firing or electric firing operation is invalid; in particular, it is required that the ammunition feeding and conveying device is not in the initial position, and the manual firing or electric firing operation is invalid.

[0088] The pure mechanical logic unlocker can be connected to five independently working above-mentioned sensors, and each sensor is respectively used in cooperation with a cam to meet the corresponding requirements. The five sensors are respectively used to detect whether the ammunition feeding and conveying device is in the initial position, the azimuth firing limit, and the elevation firing limit.

[0089] Combined with the above content, the above sensor has at least the following beneficial effects:

[0090] I. The induction and detection of the artillery state are realized by a mechanical structure. Through the settings of the body 1, wire rope 17, pull rod 5, first lever 7, transmission component and compression spring 16, the linkage between the pure mechanical logic unlocker and the cam is achieved.

[0091] II. Through the cooperation of the nut 10 and the compression spring 16, it is convenient for the pull rod 5 to be reset under the action of the restoring force of the compression spring 16.

[0092] III. Through the setting of the body joint 2, it is convenient to limit the movement range of the compression spring 16 and the nut 10.

[0093] IV. Through the settings of the wire joint 3 and the protective cover 9, the connection between the wire rope 17 and the pull rod 5 is protected (such as dustproof and waterproof).

[0094] V. Through the settings of the proximity switch 18 and the induction block, it is convenient to obtain the state information of the artillery.

[0095] See Figures 3 to 5 , the pure mechanical logic unlocker includes: seat plate 24, body cover 25, cover plate 26, lock tongue 27, first lock rod 31, second lock rod 32, third lock rod 33, fourth lock rod 34, ammunition feeding associated lock rod 35, dial plate 36 and return spring 37.

[0096] The body cover 25 is installed on the seat plate 24, and the front side of the body cover 25 is open.

[0097] The cover plate 26 is detachably connected to the opening of the body cover 25 by screws.

[0098] The lock tongue 27 longitudinally penetrates the body cover 25, and a compression spring for moving it upward to reset is connected to the lower end of the lock tongue 27. At least two convex blocks 29 are longitudinally arranged at intervals on the front side of the lock tongue 27, and at least three convex blocks 29 are longitudinally arranged at intervals on the rear side. A stop block 28 is connected to the upper end of the lock tongue 27.

[0099] The first lock rod 31 is horizontally arranged and is located at the rear side of the lock tongue 27. One end of the first lock rod 31 is connected to a sensor through a wire rope 17, and this sensor is a device for sensing that the artillery is within the azimuth firing limit of ±30°, and the other end slidably penetrates the right side of the body cover 25. A notch is provided on the first lock rod 31, and the notch can be aligned with or misaligned with the corresponding convex block 29.

[0100] The second locking lever 32 is horizontally arranged and located on the front side of the locking tongue 27. One end of the first locking lever 31 is connected to a sensor through a steel wire rope 17, and this sensor is a device for sensing that the artillery is in the elevation range of 18° to 70°. The other end slides through the right side of the body cover 25. A notch is provided on the second locking lever 32, and the notch can be aligned or misaligned with the corresponding convex block 29.

[0101] The third locking lever 33 is horizontally arranged below the first locking lever 31 and located on the rear side of the locking tongue 27. One end of the third locking lever 33 is connected to a sensor through a steel wire rope 17, and this sensor is a device for sensing that the artillery is in the azimuth range of +40° to +50°. The other end slides through the right side of the body cover 25. A notch is provided on the third locking lever 33, and the notch can be aligned or misaligned with the corresponding convex block 29.

[0102] The fourth locking lever 34 is horizontally arranged below the second locking lever 32 and located on the front side of the locking tongue 27. One end of the fourth locking lever 34 is connected to a sensor through a steel wire rope 17, and this sensor is a device for sensing that the artillery is in the elevation range of 0° to 20°. The other end slides through the right side of the body cover 25. A notch is provided on the fourth locking lever 34, and the notch can be aligned or misaligned with the corresponding convex block 29.

[0103] The ammunition feeding associated locking lever 35 is horizontally arranged below the third locking lever 33 and located on the rear side of the locking tongue 27. One end of the ammunition feeding associated locking lever 35 is connected to a sensor through a steel wire rope 17, and this sensor is a device for sensing that the ammunition feeding device is in the initial position. The other end slides through the right side of the body cover 25. A notch is provided on the ammunition feeding associated locking lever 35, and the notch can be aligned or misaligned with the corresponding convex block 29.

[0104] The above five sensors are respectively used to detect whether the ammunition feeding device is in the initial position, azimuth range, and elevation range.

[0105] There are two dial plates 36. One of the dial plates 36 is fixed on the first locking lever 31 and the second locking lever 32 and can push the third locking lever 33 and the fourth locking lever 34 to the left. The other dial plate 36 is fixed on the third locking lever 33 and the fourth locking lever 34 and can push the first locking lever 31 and the second locking lever 32 to the left.

[0106] There are five return springs 37. The five return springs 37 are installed on the right side of the body cover 25 and are used to move the first locking lever 31, the second locking lever 32, the third locking lever 33, the fourth locking lever 34, and the ammunition feeding associated locking lever 35 to the right respectively.

[0107] The pure mechanical logic unlocker further includes a tail cover 30. The tail cover 30 is detachably connected to the right side of the body cover 25 and is used to cover the five return springs 37.

[0108] In combination with the above, when the first locking rod 31, the second locking rod 32 and the ammunition feeding associated locking rod 35 are pulled out at the same time, the fourth locking rod 34 and the ammunition feeding associated locking rod 35 are moved to the left under the push of the corresponding paddle plate 36, so that the notches on each locking rod are aligned with the corresponding protrusions 29 on the lock tongue 27. At this time, the lock tongue 27 is in an unlocked state, and the firing device located above the stopper 28 can press the stopper 28 and the lock tongue 27 downward, so that the firing device can move downward, so as to realize the function of allowing manual firing or electric firing operation of the artillery firing device to be effective when the artillery is in state 1; similarly, when the third locking rod 33, the fourth locking rod 34 and the ammunition feeding associated locking rod 3 When the first locking rod 31 and the second locking rod 32 are pulled out at the same time, the lock tongue 27 is in the unlocked state, so as to realize the function of allowing manual firing or electric firing operation to be effective when the gun is in state 2; after the lock tongue 27 is released, the lock tongue 27 moves upward under the action of the compression spring, and the first locking rod 31, the second locking rod 32, the third locking rod 33, the fourth locking rod 34 and the ammunition feeding related locking rod 35 move rightward under the action of the corresponding reset spring 37, so that the notch on the lock rod is staggered with the corresponding protrusion 29 on the lock tongue 27, and the lock tongue 27 is in the locked state, and the downward movement of the lock tongue 27 is blocked due to the interference between the protrusion 29 and the circumferential side of the lock rod. That is, when the lock tongue 27 is in the unlocked state, the manual firing or electric firing operation of the firing device of the gun can cause the firing device to move downward; when the lock tongue 27 is in the locked state, the firing device cannot move downward to block the downward movement of the firing device, thereby achieving the purpose of interlocking with the firing device. In particular, it can be seen from the above content that when the bullet feeding associated locking rod 35 is not pulled out, no matter whether the first locking rod 31, the second locking rod 32, the third locking rod 33 and the fourth locking rod 34 are pulled out, the locking tongue 27 is not in an unlocked state, and manual firing or electric firing operations are not allowed.

[0109] It should be noted that in this embodiment, preferably, the first locking rod 31, the second locking rod 32, the third locking rod 33 and the fourth locking rod 34 are configured at the same time, so that the pure mechanical logic unlocker can meet the requirements of the artillery in state 1 and state 2 (state 1 and state 2 mentioned in the background technology); in other embodiments, only the first locking rod 31 and the second locking rod 32 can be configured to meet the requirements of state 1, that is, it can be selected to meet the requirements of all states or some states.

[0110] See also Figure 6 The connection structure includes: a steel wire rope 17, a first joint 20, a second joint 21, a sheath 22 and an end joint 23.

[0111] The material of the steel wire rope 17 is steel wire.

[0112] The first connector 20 is connected to one end of the steel wire rope 17 and is used for connecting to the sensor.

[0113] The second joint 21 is connected to the other end of the wire rope 17 and is used to connect with a pure mechanical logic unlocker.

[0114] The sheath 22 is sleeved outside the wire rope 17, and the wire rope 17 slides through the sheath 22.

[0115] The end joints 23 are sleeved at both ends of the sheath 22, and the wire rope 17 slides through the end joints 23. There are positioning grooves on the outer side walls of the end joints 23.

[0116] The sheath 22 guides and leads the sliding of the wire rope 17. Through the arrangement of the end joints 23, it plays a role in preventing wear increase caused by sundries entering between the wire rope 17 and the sheath 22 from the ends of the sheath 22. Inserting an external device (such as a positioning pin) into the positioning groove can limit the movement of the end joints 23 and the sheath 22.

[0117] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Without conflict, the embodiments of this application and the features in the embodiments can be combined arbitrarily. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An unlocking system, characterized in that, include: Sensors for detecting the status of artillery; Pure mechanical logic unlocker, linked with sensor; A connection structure for connecting a sensor and a purely mechanical logic unlocker; The sensors include: A main body having a receiving cavity therein; Wire rope; A pull rod is slidably passed through the accommodating cavity; one end of the pull rod is connected to one end of the steel wire rope, and the other end of the steel wire rope is connected to the connecting structure; A compression spring, disposed in the accommodating cavity, for moving the pull rod toward the direction where the steel wire rope is located; A first lever, the middle portion of which is rotatably mounted at a designated position and the lower portion of which is in rolling or sliding contact with the circumferential side surface of the cam; The transmission assembly is used for transmission connection between the upper part of the first lever and one end of the pull rod.

2. The unlocking system according to claim 1, characterized in that, The transmission assembly comprises: A connecting rod, one end of which is rotatably connected to the upper portion of the first lever, and the other end of which is rotatably connected to one end of the second lever; The other end of the second lever is rotatably and slidably connected to one end of the pull rod, and the middle part of the second lever is rotatably installed at a designated position.

3. The unlocking system according to claim 1, characterized in that, A roller is installed at the lower portion of the first lever, and the roller is in rolling contact with the circumferential side surface of the cam.

4. The unlocking system according to claim 1, wherein The sensor also includes a body joint connected to the body, and the body joint is used to block one end of the accommodating cavity; the pull rod slides through the body joint.

5. The unlocking system according to any one of claims 1 to 4, characterized in that The sensor also includes: A proximity switch is installed on the outside of the body; The induction block is installed on the upper part of the first lever.

6. The unlocking system according to claim 1, characterized in that Pure mechanical logic unlocker includes: Body cover; A lock tongue is longitudinally passed through the body cover; a compression spring is connected to the lower end of the lock tongue for moving it upward; at least one protrusion is provided on the front side of the lock tongue, and at least two protrusions are longitudinally spaced apart on the rear side; a stopper is connected to the upper end of the lock tongue; A first locking rod is arranged transversely and is located at the rear side of the locking tongue; one end of the first locking rod is connected to a sensor, which is a device for sensing that the artillery is in a directional firing range of ±30°, and the other end of the first locking rod slides through the right side of the body cover; A second locking rod is arranged transversely and is located at the front side of the locking tongue; one end of the first locking rod is connected to a sensor, which is a device for sensing that the gun is at an elevation range of 18° to 70°, and the other end slides through the right side of the body cover; The ammunition feeding associated locking rod is transversely arranged below the first locking rod and located at the rear side of the lock tongue; one end of the ammunition feeding associated locking rod is connected to a sensor, which is a device for sensing that the ammunition feeding device is in the initial position, and the other end slides through the right side of the body cover; Among them, the first locking rod, the second locking rod and the bullet feeding associated locking rod are all provided with notches, and each of the notches can be aligned or staggered with the corresponding protrusion.

7. The unlocking system according to claim 6, wherein The purely mechanical logic unlocker also includes a plurality of reset springs, which are installed on the right side of the main body cover and are used to respectively move the first locking rod, the second locking rod and the bullet feeding associated locking rod to the right.

8. The unlocking system according to claim 7, wherein The pure mechanical logic unlocking device further comprises a tail cover for covering the return spring.

9. The unlocking system according to claim 6 or 7 or 8, characterized in that, Pure mechanical logic unlocker also includes: The third locking rod is horizontally arranged between the first locking rod and the ammunition feeding associated locking rod and is located at the rear side of the locking tongue; one end of the third locking rod is connected to a sensor which is a device for sensing that the artillery is in the direction firing range of +40° to +50°, and the other end slidably penetrates through the right side of the body cover; The fourth locking rod is horizontally arranged below the second locking rod and is located at the front side of the locking tongue; one end of the fourth locking rod is connected to a sensor which is a device for sensing that the artillery is in the elevation firing range of 0° to 20°, and the other end slidably penetrates through the right side of the body cover; Two shifting plates, one of the shifting plates is fixed on the first locking rod and the second locking rod and can push the third locking rod and the fourth locking rod to the left; the other shifting plate is fixed on the third locking rod and the fourth locking rod and can push the first locking rod and the second locking rod to the left; Wherein, at least two bumps are longitudinally arranged at intervals on the front side of the locking tongue, and at least three bumps are longitudinally arranged at intervals on the rear side; notches are formed on both the third locking rod and the fourth locking rod, and each notch can be aligned with or staggered from the corresponding bump.

10. The unlocking system according to claim 1, characterized in that, The connection structure includes: A connecting rope; A first joint connected to one end of the connecting rope for connecting with the sensor; A second joint connected to the other end of the connecting rope for connecting with the pure mechanical logic unlocking device; A sheath through which the connecting rope slidably penetrates; An end joint sleeved on both ends of the sheath, and the connecting rope slidably penetrates through the end joint; a positioning groove is formed on the outer side wall of the end joint.

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