CN216348114U - Switch for gun-shooting fuse - Google Patents
Switch for gun-shooting fuse Download PDFInfo
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- CN216348114U CN216348114U CN202122962938.XU CN202122962938U CN216348114U CN 216348114 U CN216348114 U CN 216348114U CN 202122962938 U CN202122962938 U CN 202122962938U CN 216348114 U CN216348114 U CN 216348114U
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Abstract
The utility model discloses a switch for a gun shot fuse, and belongs to the technical field of switches. The high-voltage switch comprises a static electrode component, a movable electrode rod, a driving spring, a locking mechanism, a switching pin, a body and a large-pressure screw. The static electrode component consists of an insulator, a plurality of conducting strips and fastening screws which are mutually isolated, and the locking mechanism consists of a locking pin, a locking spring, a locking body and a pressing screw. At ordinary times, the movable electrode rod is locked by the locking mechanism, the movable electrode rod and the static electrode component are separated from each other, the conducting strips of the static electrode component are isolated from each other, and the switch is in an off state. When the fuse is launched, the locking mechanism senses overload of the rear seat, the locking pin moves by overcoming the resistance of the locking spring, the locking pin removes the restraint on the movable electrode rod at the moment, the driving spring pushes the movable electrode rod to move towards the static electrode component, and the movable electrode rod is simultaneously contacted with the conducting strips, so that the switch-on of the switch is realized. The utility model realizes switch conversion by using the overload of the backseat launched by the artillery, and is particularly suitable for blasting fuses by the artillery.
Description
Technical Field
The utility model relates to the technical field of switches, in particular to a switch for a gun shot fuse.
Background
Switches are widely used in electromechanical fuzes. Some switches play the effect of energy management and control, and some switches play the effect of state conversion, and in order to promote the operational reliability of big gun shot fuze, the switch of choosing for use is just more important, and the switch that uses in the current fuze mainly has the inertia closer that relies on inertia overload start, the state indication switch that is relevant with the moving part etc..
For the gun fuse, the switches used in the gun fuse generally refer to the existing switches, and few reports report novel switches developed based on the gun fuse environment, so that the development of the gun fuse switch with a new action principle is an important measure for ensuring the working reliability of the gun fuse.
SUMMERY OF THE UTILITY MODEL
In view of the above needs in the prior art, a primary object of the present invention is to provide a switch for gun firing fuse, which utilizes the backseat overload during gun firing to realize switch conversion, and is particularly suitable for gun firing fuses with a large bore backseat overload.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a switch for a gun fuse is characterized in that: the device comprises a static electrode component, a movable electrode rod, a driving spring, a locking mechanism, a switching pin, a body and a large pressure screw;
the static electrode component comprises an insulator, 4 conducting strips and 4 fastening screws, wherein the insulator is a cylinder, the interior of the insulator is hollow, 4 transverse grooves and vertical grooves which are uniformly distributed are formed in the side surface of the insulator, the transverse grooves and the vertical grooves are mutually penetrated, each vertical groove is provided with a rectangular hole, each transverse groove is provided with a threaded hole, each conducting strip penetrates through the rectangular hole in the vertical groove and is fixed on the insulator through the fastening screws, the conducting strips are formed by a first transverse body, a vertical body and a second transverse body, the first transverse body is formed by bending a beryllium bronze strip material with the thickness of 0.8-2 mm, the first transverse body is further provided with a through hole, the length of the first transverse body is smaller than that of the second transverse body, the 4 conducting strips are mutually separated, and a conducting wire is fixed between each conducting strip and the fastening screws;
the movable electrode rod is composed of a step-shaped large cylinder and a small cylinder, an annular groove formed by slopes which are symmetrical up and down is formed in the large cylinder, a large blind hole is formed in the large cylinder, and the movable electrode rod is made of an alloy structural steel material;
the driving spring is arranged in a large blind hole in the large cylinder of the movable electrode rod;
the locking mechanism comprises a locking pin, a locking spring, a locking body and a pressing screw, the locking pin comprises a step-shaped large cylinder I and a small cylinder I, a blind hole is formed in the locking pin, the locking spring is arranged in a space formed by the locking pin and the pressing screw, a round hole I, a round hole II and a threaded hole I which are sequentially connected are formed in the locking body, a cavity is formed in the pressing screw, threads are formed in the pressing screw, and are matched and fixed with the threaded hole I of the locking body in a threaded manner, the diameter of the large cylinder I of the locking pin is larger than that of the round hole I of the locking body and smaller than that of the round hole II of the locking pin, and the diameter of the small cylinder I of the locking pin is smaller than that of the round hole I of the locking body;
the switching pin is made of alloy structural steel materials, two sides of the switching pin are of ball head-shaped structures, and the switching pin is arranged between the locking mechanism and the moving electrode rod;
the body is provided with a left blind hole and a right blind hole in the vertical direction, the left blind hole and the right blind hole are mutually isolated, the left blind hole is composed of a left threaded hole and a left small blind hole, the right blind hole is composed of a right small blind hole, a right hole and a right threaded hole, and a transverse through hole which transversely penetrates is formed between the left blind hole and the right blind hole;
the locking mechanism is arranged in a left blind hole of the body, the driving spring, the electrode moving rod, the static electrode component and the large pressing screw are arranged in a right blind hole of the body, the axes of the driving spring, the electrode moving rod, the static electrode component and the large pressing screw are overlapped, the diameter of a small cylinder of the electrode moving rod is smaller than that of an inner cavity of the insulator, and the diameter of a large cylinder of the electrode moving rod is smaller than that of the right small blind hole of the right blind hole of the body and larger than that of the inner cavity of the insulator.
Preferably, the locking pin and the locking spring have a relationship such that the locking pin receives 30000m/s in the axial direction of the locking pin and the locking spring2The locking spring can be compressed and driven only under the overload condition, and the locking pin bears 50000m/s2The locking spring can be compressed to the rear end of the large cylinder I of the locking pin to be contacted with the pressing screw only under the overload condition.
Preferably, when the driving spring is in a state that the locking mechanism locks the movable electrode rod, the resistance force of the driving spring is 10N-15N, the locking mechanism unlocks the movable electrode rod, and after the movable electrode rod moves in place, the driving resistance force is 3N-5N.
Preferably, the included angle between the slope of the annular groove of the movable electrode rod and the vertical axis is 30-75 degrees.
Preferably, the first transverse body of the conducting strip is in clearance fit in the rectangular hole of the insulator, and the second transverse body of the conducting strip extends into the inner cavity of the insulator.
Preferably, the locking pin is made of alloy structural steel materials.
Preferably, any two conducting strips form one path of the switch.
Preferably, the vertical body of the conducting strip is embedded into the vertical groove of the insulator and is encapsulated by epoxy potting compound.
The working principle of the utility model is as follows:
when the utility model is installed, the axis of the locking mechanism is parallel to the axis of the bore, the locking mechanism locks the movable electrode rod at ordinary times, the movable electrode rod and the static electrode component are separated from each other, the conducting strips of the static electrode component are isolated from each other, and the switch is in a disconnected state. When the fuse is launched, the locking mechanism senses that the backseat is overloaded, the locking pin overcomes the resistance movement of the locking spring, the locking pin removes the restraint on the movable electrode rod at the moment, the driving spring pushes the movable electrode rod to move towards the static electrode component, the movable electrode rod is simultaneously contacted with the plurality of conducting strips, one path of the switch formed by any two conducting strips is changed from off to on, and therefore the switch conversion is achieved.
Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes switch conversion by using bore backseat overload when the artillery is launched, has the advantages of simple structure and safe and reliable work, and is particularly suitable for the artillery launching fuze with larger bore backseat overload. The bore overload is generally 50000m/s2Thus, the present invention can be ensured to operate reliably. During the normal service treatment process, such as transportation, vibration or falling, the overload is generally far lower than 30000m/s2Thus ensuring that the switch does not switch accidentally.
Drawings
Fig. 1 is a schematic view of an original state overall structure of a switch for a gun fuse according to the present invention;
FIG. 2 is a schematic diagram of the overall structure of the in-place state of the gun firing credit switch according to the present invention;
fig. 3 is an exploded view of the static electrode part of a switch for a gun fuse according to the present invention;
fig. 4 is a side view showing the overall structure of a static electrode part of a switch for a gun fuse according to the present invention;
fig. 5 is a front view of the static electrode part of a switch for a gun fuse according to the present invention;
fig. 6 is a cross-sectional view of a static electrode part of a switch for a gun fuse according to the present invention;
FIG. 7 is a schematic view of the overall structure of the locking mechanism of the gunpowder firing credit switch in the original state;
fig. 8 is a schematic view of the overall structure of the in-place state of the locking mechanism of the gunpowder firing credit switch of the utility model.
In the figure: 1. a static electrode member; 2. a movable electrode rod; 3. a drive spring; 4. a locking mechanism; 5. a transfer pin; 6. a body; 7. pressing the snail under high pressure; 1-1, an insulator; 1-2, conducting strips; 1-3, fastening screws; 4-1, a locking pin; 4-2, locking spring; 4-3, a locking body; 4-4, pressing the snail.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, a switch for a gun fuse comprises a static electrode component 1, a dynamic electrode rod 2, a driving spring 3, a locking mechanism 4, a transfer pin 5, a body 6 and a large pressure screw 7;
the static electrode component 1 is shown in figures 3-6 and comprises an insulator 1-1, 4 conducting strips 1-2 and 4 fastening screws 1-3, wherein the insulator 1-1 is a cylinder, the interior of the insulator 1-1 is hollow, 4 transverse grooves and vertical grooves are uniformly distributed on the side surface of the insulator 1-1, the transverse grooves and the vertical grooves penetrate through each other, each vertical groove is provided with a rectangular hole, each transverse groove is provided with a threaded hole, each conducting strip 1-2 penetrates through the rectangular hole on the vertical groove and is fixed on the insulator 1-1 through the fastening screws 1-3, the conducting strips 1-2 are formed by bending beryllium bronze strip materials with the thickness of 0.8-2 mm to form a first transverse body, the vertical body and a second transverse body, the first transverse body is further provided with through holes, and the length of the first transverse body is smaller than that of the second transverse body, the 4 conducting strips 1-2 are mutually separated, and a wire is fixed between each conducting strip 1-2 and the fastening screw 1-3. Furthermore, the first transverse body of the conducting plate 1-2 is in clearance fit in the rectangular hole of the insulator 1-1, and the second transverse body of the conducting plate 1-2 extends into the inner cavity of the insulator 1-1. Still further, the vertical body of the conducting strip 1-2 is embedded into the vertical groove of the insulator 1-1 and is encapsulated by epoxy potting adhesive.
The movable electrode rod 2 is composed of a step-shaped large cylinder and a small cylinder, an annular groove formed by slopes which are symmetrical up and down is formed in the large cylinder, a large blind hole is formed in the large cylinder, and the movable electrode rod 2 is made of an alloy structural steel material. Furthermore, the included angle between the slope of the annular groove of the movable electrode rod 2 and the vertical axis is 30-75 degrees, and 60 degrees is preferred in the embodiment.
The driving spring 3 is arranged in a large blind hole in the large cylinder of the movable electrode rod 2;
the locking mechanism 4 is shown in fig. 7 and 8 and comprises a locking pin 4-1, a locking spring 4-2, a locking body 4-3 and a pressing screw 4-4, the locking pin 4-1 comprises a step-shaped large cylinder I and a step-shaped small cylinder I, the locking spring 4-2 is arranged in a space formed by the locking pin 4-1 and the pressing screw 4-4, a blind hole is further formed in the locking pin 4-1, the locking body 4-3 is internally provided with a round hole I, a round hole II and a threaded hole I which are sequentially connected, the pressing screw 4-4 is internally provided with a cavity and is externally provided with a thread, the locking pin is fixed with a threaded hole I of the locking body 4-3 in a threaded fit mode, the diameter of a large cylinder I of the locking pin 4-1 is larger than that of a round hole I of the locking body 4-3 and smaller than that of a round hole II of the locking pin 4-1, and the diameter of a small cylinder I of the locking pin 4-1 is smaller than that of the round hole I of the locking body 4-3.
The adapting pin 5 is made of alloy structural steel materials, two sides of the adapting pin are of ball-head-shaped structures, and the adapting pin is arranged between the locking mechanism 4 and the moving electrode rod 2;
the vertical direction of body 6 has left blind hole and right blind hole, and left blind hole and right blind hole mutual isolation, left blind hole comprise left screw hole and left little blind hole, and right blind hole comprises right little blind hole, right hole and right screw hole, has a horizontal through-hole that transversely runs through between left blind hole and the right blind hole. The locking mechanism 4 is arranged in a left blind hole of the body 6.
The driving spring 3, the movable electrode rod 2, the static electrode component 1 and the large pressing screw 7 are installed in a right blind hole of the body 6, the axes of the driving spring 3, the movable electrode rod 2, the static electrode component 1 and the large pressing screw 7 are overlapped, the diameter of a small cylinder of the movable electrode rod 2 is smaller than the diameter of an inner cavity of the insulator 1-1, and the diameter of a large cylinder of the movable electrode rod 2 is smaller than the diameter of the right small blind hole of the right blind hole of the body 6 and larger than the diameter of the inner cavity of the insulator 1-1.
Further, there is a relationship between the lock pin 4-1 and the lock spring 4-2 such that the lock pin 4-1 receives 30000m/s in the axial direction of the lock pin 4-1 and the lock spring 4-22The locking spring 4-2 can be compressed and driven only under the overload condition, and the locking pin 4-1 bears 50000m/s2The locking spring 4-2 can be compressed until the rear end of the large cylinder I of the locking pin 4-1 is contacted with the pressing screw 4-4 under the overload condition.
Further, when the driving spring 3 is in a state that the locking mechanism 4 locks the movable electrode rod 2, the resistance force of the driving spring 3 is 10N to 15N, the locking mechanism 4 releases the locking of the movable electrode rod 2, and after the movable electrode rod 2 is moved to the proper position, the resistance force of the driving spring 3 is 3N to 5N.
Further, the locking pin 4-1 is made of alloy structural steel material.
Furthermore, any two conducting strips 1-2 form a path of the switch.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A switch for a gun fuse is characterized in that: the device comprises a static electrode component (1), a moving electrode rod (2), a driving spring (3), a locking mechanism (4), a switching pin (5), a body (6) and a large pressure screw (7);
the static electrode component (1) is composed of an insulator (1-1), 4 conducting strips (1-2) and 4 fastening screws (1-3), the insulator (1-1) is a cylinder, the interior of the insulator is hollow, 4 transverse grooves and vertical grooves are uniformly distributed on the side faces of the insulator (1-1), the transverse grooves and the vertical grooves penetrate through each other, each vertical groove is provided with a rectangular hole, each transverse groove is provided with a threaded hole, each conducting strip (1-2) penetrates through the rectangular hole in the vertical groove and is fixed on the insulator (1-1) through the fastening screws (1-3), the conducting strips (1-2) are composed of a first transverse body, a vertical body and a second transverse body, each first transverse body is formed by bending a bronze strip with the thickness of 0.8-2 mm, each beryllium strip is provided with a through hole, the length of the first transverse body is smaller than that of the second transverse body, 4 conducting strips (1-2) are mutually separated, and a wire is fixed between each conducting strip (1-2) and the fastening screw (1-3);
the movable electrode rod (2) is composed of a step-shaped large cylinder and a small cylinder, an annular groove formed by slopes which are symmetrical up and down is formed in the large cylinder, a large blind hole is formed in the large cylinder, and the movable electrode rod (2) is made of an alloy structural steel material;
the driving spring (3) is arranged in a large blind hole in the large cylinder of the movable electrode rod (2);
the locking mechanism (4) comprises a locking pin (4-1), a locking spring (4-2), a locking body (4-3) and a pressing screw (4-4), the locking pin (4-1) comprises a step-shaped large cylinder I and a step-shaped small cylinder I, a blind hole is formed in the locking mechanism, the locking spring (4-2) is arranged in a space formed by the locking pin (4-1) and the pressing screw (4-4), the locking body (4-3) is internally provided with a round hole I, a round hole II and a threaded hole I which are sequentially connected, the pressing screw (4-4) is internally provided with a cavity and externally provided with threads, the locking mechanism is fixed with the threaded hole I of the locking body (4-3) in a threaded fit mode, the diameter of the large cylinder I of the locking pin (4-1) is larger than the diameter of the round hole I of the locking body (4-3) and smaller than the diameter of the round hole II of the locking pin (4-1), the diameter of a small cylinder I of the locking pin (4-1) is smaller than that of a round hole I of the locking body (4-3);
the switching pin (5) is made of alloy structural steel materials, two sides of the switching pin are of ball-head-shaped structures and are arranged between the locking mechanism (4) and the moving electrode rod (2);
the body (6) is provided with a left blind hole and a right blind hole in the vertical direction, the left blind hole and the right blind hole are mutually isolated, the left blind hole is composed of a left threaded hole and a left small blind hole, the right blind hole is composed of a right small blind hole, a right hole and a right threaded hole, and a transverse through hole which transversely penetrates is formed between the left blind hole and the right blind hole;
the locking mechanism (4) is arranged in a left blind hole of the body (6), the driving spring (3), the movable electrode rod (2), the static electrode component (1) and the large pressure screw (7) are installed in a right blind hole of the body (6), the axes of the driving spring (3), the movable electrode rod (2), the static electrode component (1) and the large pressure screw (7) are overlapped, the diameter of a small cylinder of the movable electrode rod (2) is smaller than that of an inner cavity of the insulator (1-1), and the diameter of a large cylinder of the movable electrode rod (2) is smaller than that of the right small blind hole of the right blind hole of the body (6) and larger than that of the inner cavity of the insulator (1-1).
2. The switch for a gun fuse according to claim 1, wherein: the locking pin (4-1) and the locking spring (4-2) are in such a relationship that the locking pin (4-1) receives 30000m/s in the axial direction of the locking pin (4-1) and the locking spring (4-2)2The locking spring (4-2) can be compressed and driven under the overload condition, and the locking pin (4-1) bears 50000m/s2The locking spring (4-2) can be compressed until the rear end of the large cylinder I of the locking pin (4-1) is contacted with the pressing screw (4-4) under the overload condition.
3. A switch for a gun fuse according to claim 1 or 2, wherein: when the driving spring (3) locks the movable electrode rod (2) by the locking mechanism (4), the resistance of the driving spring (3) is 10N-15N, the locking mechanism (4) releases the locking of the movable electrode rod (2), and after the movable electrode rod (2) moves in place, the resistance of the driving spring (3) is 3N-5N.
4. A switch for a gun fuse according to claim 1 or 3, wherein: the included angle between the slope of the annular groove of the movable electrode rod (2) and the vertical axis is 30-75 degrees.
5. The switch for a gun fuse according to claim 1, wherein: the first transverse body of the conducting strip (1-2) is in clearance fit in the rectangular hole of the insulator (1-1), and the second transverse body of the conducting strip (1-2) extends into the inner cavity of the insulator (1-1).
6. A switch for a gun fuse according to claim 1 or 2, wherein: the locking pin (4-1) is made of alloy structural steel materials.
7. The switch for a gun fuse according to claim 1 or 5, wherein: any two conducting strips (1-2) form one path of the switch.
8. A switch for a gun fuse according to claim 1, 5 or 7, wherein: the vertical body of the conducting strip (1-2) is embedded into the vertical groove of the insulator (1-1) and is encapsulated by epoxy potting adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962938.XU CN216348114U (en) | 2021-11-25 | 2021-11-25 | Switch for gun-shooting fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122962938.XU CN216348114U (en) | 2021-11-25 | 2021-11-25 | Switch for gun-shooting fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216348114U true CN216348114U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122962938.XU Active CN216348114U (en) | 2021-11-25 | 2021-11-25 | Switch for gun-shooting fuse |
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| Country | Link |
|---|---|
| CN (1) | CN216348114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116222329A (en) * | 2022-12-30 | 2023-06-06 | 湖北三江航天红林探控有限公司 | Large-stroke large-driving-force fusible alloy pin pusher and assembly method thereof |
-
2021
- 2021-11-25 CN CN202122962938.XU patent/CN216348114U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116222329A (en) * | 2022-12-30 | 2023-06-06 | 湖北三江航天红林探控有限公司 | Large-stroke large-driving-force fusible alloy pin pusher and assembly method thereof |
| CN116222329B (en) * | 2022-12-30 | 2024-05-03 | 湖北三江航天红林探控有限公司 | Large-stroke large-driving-force fusible alloy pin pusher and assembly method thereof |
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