Recoverable safety mechanism

Abstract

The utility model relates to a recoverable safety mechanism which comprises a guide seat, a moving rod, a second stop pin and a first stop pin, the second stop pin is arranged on the moving rod in a penetrating mode and connected to the guide seat in a sliding mode, and a reset spring is arranged at the end, close to the guide seat, of the second stop pin. The first stop pin is arranged on the moving rod in a penetrating mode and connected to the guide base in a sliding mode, and an energy storage spring is arranged at the end, close to the guide base, of the first stop pin. The device is simple in structure, small in size and convenient to use.

Description

Technical Field

[0001] The utility model relates to a recoverable insurance mechanism, belonging to the technical field of insurance mechanisms. Background Art

[0002] The working principle of the safety mechanism currently used in electromechanical fuzes is that the constraints of the action parts of the safety mechanism are released by the action of environmental forces, and the physical action of the action parts is converted into a switching action of the electronic components or the mechanical structure is placed in a certain required state to meet the use requirements. Its shortcomings are as follows: manual operation cannot meet the requirements of releasing the constraints of the safety mechanism, so it cannot be manually released for use; the recoverability is poor, and it needs to be restored with the help of special tools or through complex operations such as disassembly, which does not meet the needs of rapid recovery and use. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the following technical problems in the prior art: manual operation cannot meet the requirements of releasing the constraints of the insurance mechanism, so it cannot be manually released for use; the recoverability is poor, and it needs to be restored with the help of special tools or through complex operations such as disassembly, which does not meet the needs of rapid recovery and use.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a restorable safety mechanism, comprising a guide seat, a moving rod, a second stop pin and a first stop pin, the second stop pin is passed through the moving rod and is slidably connected to the guide seat, a return spring is arranged on the end of the second stop pin close to the guide seat, the first stop pin is passed through the moving rod and is slidably connected to the guide seat, and an energy storage spring is arranged on the end of the first stop pin close to the guide seat.

[0006] As a preferred technical solution of a restorable safety mechanism, the guide seat is fixed in the shell, and three guide circular holes are opened on the guide seat, and the three guide circular holes correspond to the movement rod, the second stop pin and the first stop pin respectively.

[0007] As an optimal technical solution for a recoverable safety mechanism, the moving rod includes a moving rod big end, a moving rod platform portion and a moving rod small end. The moving rod big end, the moving rod platform portion and the moving rod small end are connected in sequence, and a limiting hole is opened on the moving rod platform portion.

[0008] As a preferred technical solution of a restorable safety mechanism, the limiting hole comprises a gourd-shaped limiting hole large hole and a gourd-shaped limiting hole small hole, and the gourd-shaped limiting hole large hole is connected to the gourd-shaped limiting hole small hole.

[0009] As an optimal technical solution for a restorable safety mechanism, the second stop pin includes a button part 2, a sliding part 2, a step part 2, a stop pin small shaft 2 and a positioning part 2. The button part 2, the sliding part 2, the step part 2 and the stop pin small shaft 2 are connected in sequence, and the stop pin small shaft 2 is provided with a positioning part 2 matching the limiting hole.

[0010] As a preferred technical solution of a restorable safety mechanism, the second positioning portion includes a second cylindrical member and a second conical member, and the second conical member is arranged on one side of the second cylindrical member close to the second step portion.

[0011] As an optimal technical solution for a restorable safety mechanism, the first stop pin includes a button portion, a sliding portion, a step portion, a stop pin shaft and a positioning portion, and the button portion, the sliding portion, the step portion, the positioning portion and the stop pin shaft are sequentially connected and arranged.

[0012] As a preferred technical solution of a restorable safety mechanism, the positioning portion 1 includes a cylindrical member 1 and a conical member 1, and the conical member 1 is arranged on a side of the cylindrical member 1 away from the step portion 1.

[0013] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects: rapid recovery can be achieved without the aid of tools or disassembly of the product; the insurance can only be released by using two completely opposite forces acting on the two stop pins respectively, preventing the misunderstanding of the insurance being released by unidirectional environmental forces, thereby improving the insurance capacity of the insurance mechanism; the structure is simple, the size is compact, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 A schematic diagram of the insurance status of a recoverable insurance institution;

[0016] Figure 2 A schematic diagram of a recoverable insurance mechanism in a released insurance state;

[0017] Figure 3 A schematic diagram of a motion rod of a recoverable safety mechanism;

[0018] Figure 4 A schematic diagram of a second stop pin and a first stop pin of a recoverable safety mechanism;

[0019] Figure 5 It is a cross-sectional structural schematic diagram of the device;

[0020] Figure numerals: 1, housing; 2, guide seat; 3, movement rod; 31, movement rod large end; 32, movement rod platform; 321, gourd-shaped limit hole large hole; 322, gourd-shaped limit hole small hole; 33, movement rod small end; 4, second stop pin; 41, button part 2; 42, sliding part 2; 43, step part 2; 44, stop pin small shaft 2; 45, positioning part 2; 451, columnar part 2; 452, conical part 2; 5, first stop pin; 51, button part 1; 52, sliding part 1; 53, step part 1; 54, stop pin small shaft 1; 55, positioning part 1; 551, conical part 1; 552, columnar part 1; 6, reset spring; 7, energy storage spring; 8, sealing ring 1; 9, sealing ring 2; DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] like Figures 1 to 5As shown, a restorable safety mechanism includes a guide seat 2, a moving rod 3, a second stop pin 4 and a first stop pin 5. The second stop pin 4 is passed through the moving rod 3 and is slidably connected to the guide seat 2. A reset spring 6 is arranged on the end of the second stop pin 4 close to the guide seat 2. The first stop pin 5 is passed through the moving rod 3 and is slidably connected to the guide seat 2. An energy storage spring 7 is arranged on the end of the first stop pin 5 close to the guide seat 2.

[0026] The guide seat 2 is fixed in the housing 1 by screws, and three guide circular holes are formed on the guide seat 2, and the three guide circular holes are respectively aligned with the movement rod 3, the second stop pin 4 and the first stop pin 5. It should be noted that the movement of the movement rod 3, the second stop pin 4 and the first stop pin 5 can be restricted by the guide circular holes.

[0027] In addition, the motion rod 3 includes a motion rod large end 31, a motion rod platform portion 32 and a motion rod small end 33, the motion rod large end 31, the motion rod platform portion 32 and the motion rod small end 33 are connected in sequence, and a limiting hole is provided on the motion rod platform portion 32. The limiting hole includes a gourd-shaped limiting hole large hole 321 and a gourd-shaped limiting hole small hole 322, and the gourd-shaped limiting hole large hole 321 is connected to the gourd-shaped limiting hole small hole 322.

[0028] The second stop pin 4 includes a second button portion 41, a second sliding portion 42, a second step portion 43, a second stop pin shaft 44 and a second positioning portion 45. The second button portion 41, the second sliding portion 42, the second step portion 43 and the second stop pin shaft 44 are sequentially connected and arranged. The second stop pin shaft 44 is provided with a second positioning portion 45 that matches the limiting hole. The second positioning portion 45 includes a second columnar component 451 and a second conical component 452. The second conical component 452 is arranged on the second columnar component 451 at a side close to the second step portion 43.

[0029] The first stopper pin 5 comprises a button portion 51, a sliding portion 52, a step portion 53, a stopper pin small shaft 54 ​​and a positioning portion 55, wherein the button portion 51, the sliding portion 52, the step portion 53, the positioning portion 55 and the stopper pin small shaft 54 ​​are sequentially connected and arranged. The positioning portion 55 comprises a columnar member 552 and a conical member 551, wherein the conical member 551 is arranged on a side of the columnar member 552 away from the step portion 53.

[0030] It should be noted that the sliding part 1 52 and the sliding part 2 42 are slidably configured on the shell 1, a sealing ring 1 8 is configured between the sliding part 1 52 and the shell 1, a sealing ring 2 9 is configured between the sliding part 2 42 and the shell 1, the stop pin small shaft 1 54 and the stop pin small shaft 2 44 are slidably connected to the guide circular hole on the shell 1 respectively, when the reset spring 6 is in a released state, the positioning part 2 45 can be inserted into the gourd-shaped limiting hole 321, and the conical part 2 452 on the positioning part 2 45 facilitates the insertion of the positioning part 2 45 into the gourd-shaped limiting hole 321, the function of the positioning part 1 55 is the same as that of the positioning part 2 45, and the step part 1 53 and the step part 2 43 have a blocking effect.

[0031] The working principle of this utility model:

[0032] When a recoverable insurance mechanism is in the insurance state, its structural position is as follows Figure 1 As shown, the first stop pin 5 is in a pressed state, the second stop pin 4 is in an unpressed state, and the positioning parts of the two stop pin shafts are in the large hole 321 of the gourd-shaped limiting hole of the moving rod 3, thereby limiting the axial movement of the moving rod 3. At this time, the energy storage spring 7 is in a compressed state, the reset spring 6 is in a released state, and the small end 33 of the moving rod passes through the guide seat 2, exposing one end, and the safety mechanism can be restored to a safety state.

[0033] When the recoverable insurance mechanism is released, its structural position is as follows Figure 2 As shown, the second stop pin 4 is pressed down and the first stop pin 5 is pulled out, and the positioning parts of the two stop pin shafts move out of the large hole 321 of the gourd-shaped limiting hole of the moving rod 3, thereby releasing the axial limit on the moving rod 3. At this time, the energy of the energy storage spring 7 is released, pushing the moving rod 3 to move toward the large end until the small hole 322 of the gourd-shaped limiting hole of the moving rod 3 contacts the outer diameter of the small shafts of the two stop pins, limiting the movement of the moving rod 3, and the small end 33 of the moving rod no longer passes through the guide seat 2, so the safety mechanism can be restored to the released state.

[0034] When a recoverable insurance institution needs to be restored, e.g. Figure 2 As shown, in the released state, an external force is applied to the moving rod 3 along the reserved hole of the shell 1 to push the moving rod 3 to move and compress the energy storage spring 7. When the large hole 321 of the gourd-shaped limiting hole of the moving rod 3 is aligned with the positioning part 45 on the small shaft 44 of the stop pin, the energy of the compressed reset spring 6 is released to push the second stop pin 4 to move and reset. The first stop pin 5 is pressed, and the two stop pin shafts are both in the large hole 321 of the gourd-shaped limiting hole of the moving rod 3, which limits the axial movement of the moving rod 3. The small end 33 of the moving rod passes through the guide seat 2, exposing one end, and the safety mechanism can be restored to the safety state.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A recoverable insurance mechanism, characterized in that: The invention comprises a guide seat (2), a moving rod (3), a second stop pin (4) and a first stop pin (5), wherein the second stop pin (4) is passed through the moving rod (3) and is slidably connected to the guide seat (2), a return spring (6) is arranged on one end of the second stop pin (4) close to the guide seat (2), the first stop pin (5) is passed through the moving rod (3) and is slidably connected to the guide seat (2), and an energy storage spring (7) is arranged on one end of the first stop pin (5) close to the guide seat (2).

2. The recoverable safety mechanism according to claim 1, characterized in that: The guide seat (2) is fixed in the housing (1), and three guide circular holes are provided on the guide seat (2), and the three guide circular holes are respectively aligned with the movement rod (3), the second stop pin (4) and the first stop pin (5).

3. The recoverable safety mechanism according to claim 1, characterized in that: The motion rod (3) comprises a motion rod big end (31), a motion rod platform portion (32) and a motion rod small end (33); the motion rod big end (31), the motion rod platform portion (32) and the motion rod small end (33) are connected in sequence, and a limiting hole is provided on the motion rod platform portion (32).

4. The recoverable safety mechanism according to claim 3, characterized in that: The limiting hole comprises a gourd-shaped limiting hole (321) and a gourd-shaped limiting hole (322), and the gourd-shaped limiting hole (321) is connected to the gourd-shaped limiting hole (322).

5. The recoverable safety mechanism according to claim 3, characterized in that: The second stop pin (4) comprises a second button portion (41), a second sliding portion (42), a second step portion (43), a second stop pin shaft (44) and a second positioning portion (45); the second button portion (41), the second sliding portion (42), the second step portion (43) and the second stop pin shaft (44) are sequentially connected and arranged; the second stop pin shaft (44) is provided with a second positioning portion (45) matching the limiting hole.

6. The recoverable safety mechanism according to claim 5, characterized in that: The second positioning portion (45) comprises a second cylindrical member (451) and a second conical member (452), wherein the second conical member (452) is arranged on one side of the second cylindrical member (451) close to the second step portion (43).

7. The recoverable safety mechanism according to claim 3, characterized in that: The first stop pin (5) comprises a button portion (51), a sliding portion (52), a step portion (53), a stop pin shaft (54) and a positioning portion (55); the button portion (51), the sliding portion (52), the step portion (53), the positioning portion (55) and the stop pin shaft (54) are sequentially connected and arranged.

8. The recoverable safety mechanism according to claim 7, characterized in that: The positioning portion 1 (55) includes a cylindrical member 1 (552) and a conical member 1 (551), wherein the conical member 1 (551) is arranged on a side of the cylindrical member 1 (552) away from the step portion 1 (53).

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