Rubber cap structure with protective cover capable of falling off automatically

Abstract

The utility model discloses a rubber cap structure with a protective cover capable of falling off automatically, which comprises a base, the base comprises a circle of annular bottom edge and a circle of vertical edge located on the periphery of the annular bottom edge, the base is connected with the protective cover through a limiting piece, the limiting piece comprises an annular spiral ring, and the inner wall of the vertical edge is provided with an internal thread connected with the annular spiral ring. A plurality of through holes are formed in the side wall of the circular-ring-shaped spiral ring, a plurality of counter bores are formed in the side wall of the protective cover, the circular-ring-shaped spiral ring and the protective cover are connected after pin shafts are inserted into the through holes and the counter bores, a rubber cap is arranged between the protective cover and the circular-ring-shaped bottom edge, and a tower spring is arranged between the rubber cap and the circular-ring-shaped bottom edge. Self-locking is formed between the protective cover and the base through the limiting piece between the protective cover and the base, the protective cover is limited by inserting the pin shaft into the counter bore, the sealing performance of the rubber cap is guaranteed when ammunition is dispensed, and the rubber cap is prevented from being damaged by external factors.

Description

Technical Field

[0001] The utility model relates to a field, in particular to a rubber cap structure with a self-detachable protective cover. Background Art

[0002] In recent years, dispensable ammunition has gradually become one of the important means of warfare on the battlefield. This type of ammunition covers a large area of ​​the target area through various launch platforms and has a strong tactical strike capability. However, with the complexity of combat missions, traditional dispensing methods have been difficult to meet actual combat needs, especially in terms of low cost and rapid deployment, and there are major technical bottlenecks. In the prior art, ammunition is in a free fall state during the dispensing process. Due to the randomness of the dispensing process, the ammunition often has the warhead directly penetrated into the ground when it contacts the ground, which not only affects the stability of the ammunition, but also may cause damage to the ammunition structure, thereby affecting subsequent operations, especially ammunition used in special environmental factors such as waterproofing and shockproofing. It is more susceptible to damage. This situation will reduce the combat effectiveness of the ammunition in terms of detonation and communication of the ammunition. At present, existing technologies have solved this problem by adding auxiliary devices such as parachutes to ammunition equipment, but such devices often affect the accuracy of dispensing and the coverage of ammunition.

[0003] The combined sealing cover with the publication number of CN 111153040 A comprises a cover body, a sealing ring and a pressure cover, the bottom of the sealing ring is provided with an inner convex edge extending inward, the sealing ring is sleeved on the cover body, the cover body is fixedly connected with the pressure cover, and the inner convex edge is sandwiched between the lower end surface of the cover body and the upper end surface of the outer edge of the bottom of the pressure cover. The combined sealing cover is used to seal the ammunition packaging tube, and it adopts a combined structure, the cover body and the pressure cover are closely matched to fix the sealing ring, the structure is reliable, the pressure bearing capacity is strong, the sealing ring and the ammunition packaging tube are closely matched, and the sealing effect is good; the cover body is provided with a hole and a detachably connected sealing plug, so as to avoid the difficulty of opening due to the negative pressure generated in the ammunition packaging tube, and it is easy to open; the plug-in handle on the cover body makes it easy to press and open the sealing cover, so as to facilitate the sealing and opening of the ammunition packaging tube. Although the sealing effect ensures that the ammunition packaging has good airtightness, the overall structure of the combined sealing cover is complicated, and the internal and external air pressure conditions still need to be considered when opening the ammunition packaging tube, the manufacturing cost is high, and the locking structure cannot be quickly assembled and separated.

[0004] In response to the above problems, there is an urgent need for a low-cost, efficient solution that can effectively protect the ammunition head during the dispersal process and can quickly achieve installation and separation, avoiding problems such as failure of the waterproof function due to damage to the warhead. Utility Model Content

[0005] The utility model aims to provide a rubber cap structure with a protective cover that can fall off automatically.

[0006] The innovation of this utility model lies in that a limiting member between the protective cover and the base enables the protective cover and the base to form a self-locking structure. The protective cover is limited by inserting a pin shaft into a counterbore, ensuring the sealing performance at the rubber cap during ammunition dispensing and preventing damage to the rubber cap caused by external factors.

[0007] To achieve the above-mentioned utility model purpose, the technical solution of this utility model is: a rubber cap structure with a protective cover that can be self-detached, which is characterized by including a base. The base includes a circular ring-shaped bottom edge and a circle of vertical edges located on the outer periphery of the circular ring-shaped bottom edge. A protective cover is connected to the base through a limiting member. The limiting member includes a circular ring-shaped spiral. The inner wall of the vertical edge is provided with an internal thread that is spirally connected to the circular ring-shaped spiral. The side wall of the circular ring-shaped spiral is provided with several through holes, and the side wall of the protective cover is provided with several counterbores. The circular ring-shaped spiral and the protective cover are connected by inserting a pin shaft into the through holes and the counterbores. A rubber cap is provided between the protective cover and the circular ring-shaped bottom edge, and a conical spring is provided between the rubber cap and the circular ring-shaped bottom edge. The base and the protective cover are limited by the limiting member. Under the action of the conical spring, the protective cover is kept in a self-locking state, making the rubber cap not easily damaged by external factors.

[0008] Further, several fracture grooves arranged along the length direction of the pin shaft are provided on the pin shaft, and the cross-section of the fracture groove is a V-shaped opening. By using the fracture grooves and V-shaped openings on the pin shaft, the pin shaft can be quickly fractured when the protective cover is separated, avoiding jamming and improving the separation efficiency.

[0009] Further, one end of the pin shaft close to the vertical edge of the base is arc-shaped. When the circular ring-shaped spiral is spirally connected to the vertical edge of the base, the pin shaft is not easily damaged to the internal thread on the inner wall of the vertical edge.

[0010] Further, a circular ring-shaped pressing ring for pressing against the root of the rubber cap is provided below the circular ring-shaped spiral. The circular ring-shaped pressing ring isolates the direct contact between the circular ring-shaped spiral and the rubber cap, preventing the rubber cap from being driven when the circular ring-shaped spiral is spirally connected and enhancing the sealing effect.

[0011] Further, several jacks for rotating the protective cover are provided on the top of the protective cover. The addition of the jack design improves the convenience of locking and disassembling the protective cover.

[0012] Further, the protective cover is made of a transparent material. The use of a transparent material for the protective cover increases the visibility of the operation.

[0013] Further, a flanging is provided at one end of the rubber cap that fits against the vertical edge of the base, and the circular ring-shaped pressing ring presses against the flanging of the rubber cap. The addition of the flanging design on the rubber cap makes the circular ring-shaped pressing ring press the flanging of the rubber cap tightly against the vertical edge of the base, improving the overall sealing effect.

[0014] Further, a groove is provided on the side wall of the protective cover. The groove covers the counterbore, and several notches communicating with the groove are provided on the top surface of the protective cover. The pin shaft can be switched to different positions along the periphery of the protective cover through the groove. When disassembling and screwing in the protective cover, the notches provided on the top surface of the protective cover are used to achieve the quick separation and installation of the protective cover.

[0015] 1. In the present utility model, the base and the protective cover are limited by the limiting member. Under the action of the tower spring, the protective cover is kept in a self-locking state, so that the rubber cap is not easily damaged by external factors; the direct contact between the circular retaining ring and the rubber cap is isolated by the circular pressing ring, preventing the rubber cap from being driven during the screw connection, thereby improving the overall sealing effect; the flanging design on the rubber cap is increased, and the circular pressing ring is used to press against the flanging, further enhancing the sealing performance of the rubber cap; one end of the pin shaft near the vertical edge of the base is designed with an arc shape, reducing the damage to the internal thread on the inner wall of the vertical edge during the screw connection process and improving the stability of the overall structure.

[0016] 2. In the present utility model, the fracture groove and the V-shaped opening design added to the pin shaft enable the pin shaft to break quickly when the protective cover is separated, avoiding the jamming phenomenon and improving the separation efficiency; the top of the protective cover is provided with a jack design for rotation, improving the convenience during the locking and disassembly of the protective cover; the protective cover made of a transparent material increases the visibility and accuracy of the operation; through the groove on the side wall of the protective cover and the notch design on the top surface of the protective cover, the quick separation and installation during the disassembly and installation of the protective cover are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a sectional view of the present utility model.

[0018] Figure 2 The left side and the right side are respectively the overall structure schematic diagram and the protective cover separation schematic diagram of the present utility model.

[0019] Figure 3 is the overall schematic diagram of the protective cover of the present utility model.

[0020] Figure 4 is the overall schematic diagram of the pin shaft of the present utility model.

[0021] In the figure: 1. Base; 2. Circular bottom edge; 3. Vertical edge; 4. Limiting member; 5. Protective cover; 6. Circular retaining ring; 7. Internal thread; 8. Through hole; 9. Counterbore; 10. Pin shaft; 11. Rubber cap; 12. Tower spring; 13. Fracture groove; 14. Circular pressing ring; 15. Jack; 16. Flanging; 17. Groove; 18. Notch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0023] Embodiment: As shown in Figure 1 , 2 , 3, and 4, a glue cap structure with a self - detachable protective cover of the present utility model includes a base 1. The base 1 includes a circular ring - shaped bottom edge 2 and a circular vertical edge 3 located on the outer periphery of the circular ring - shaped bottom edge 2. A protective cover 5 is connected to the base 1 through a limiting member 4. The limiting member 4 includes a circular ring - shaped screw ring 6. An internal thread 7 connected to the circular ring - shaped screw ring 6 is provided on the inner wall of the vertical edge 3. A plurality of through - holes 8 are provided on the side wall of the circular ring - shaped screw ring 6, and a plurality of counter - bores 9 are provided on the side wall of the protective cover 5. The circular ring - shaped screw ring 6 and the protective cover 5 are connected by inserting a pin shaft 10 into the through - holes 8 and the counter - bores 9. A glue cap 11 is provided between the protective cover 5 and the circular ring - shaped bottom edge 2, and a conical spring 12 is provided between the glue cap 11 and the circular ring - shaped bottom edge 2. A plurality of fracture grooves 13 arranged along the length direction of the pin shaft 10 are provided on the pin shaft 10, and the cross - section of the fracture grooves 13 is a V - shaped opening. One end of the pin shaft 10 near the vertical edge 3 of the base 1 is arc - shaped. A circular pressing ring 14 for pressing against the root of the glue cap 11 is provided below the circular ring - shaped screw ring 6. A plurality of jacks 15 for rotating the protective cover 5 are provided on the top of the protective cover 5. The protective cover 5 is made of a transparent material. A flanging 16 is provided on one end of the glue cap 11 that fits against the vertical edge 3 on the base 1, and the circular pressing ring 14 is closely attached to the flanging 16 on the glue cap 11. A circular groove 17 is provided on the side wall of the protective cover 5, and the circular groove 17 covers the counter - bores 9. A plurality of notches 18 communicating with the circular groove 17 are provided on the top surface of the protective cover 5.

[0024] The working principle of the present utility model is as follows: When installing the protective cover 5, first place the conical spring 12 on the circular ring - shaped bottom edge 2, use the circular sealing ring 16 to press against the inner wall of the glue cap 11 and sleeved on the conical spring 12, and press the glue cap 11 tightly on the vertical edge 3. Then, sleeved the circular pressing ring 6 on the glue cap 11 to press the root of the glue cap 11, and the circular pressing ring 6 presses the flanging 16 on the glue cap 11 tightly against the vertical edge 3 of the base 1; insert the pin shaft 10 into the through - hole 8, and use the internal thread 7 on the inner wall of the vertical edge 3 to be spirally connected with the circular ring - shaped screw ring 6; press the protective cover 5 down on the glue cap 11 until the pin shaft 10 is located at the notch 18 of the circular groove 17 of the protective cover 5. The operator rotates the protective cover 5 by using the jacks 15 so that the pin shaft 10 is inserted into the corresponding counter - bores 9. The conical spring 12 applies an upward pressing force to the glue cap 11, and the pin shaft 10 limits the protective cover 5. At this time, the installation of the protective cover 5 is completed to achieve self - locking; when separating the protective cover, press the protective cover 5 downward, so that the pin shaft 10 in the counter - bore 9 breaks along the fracture groove 13, and the pressing force of the conical spring 12 ejects the protective cover 5 to complete the separation.

[0025] In summary, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

Claims

1. A rubber cap structure with a protective cover that can fall off by itself, characterized in that, It includes a base, the base includes a circular bottom edge and a vertical edge located on the outer periphery of the circular bottom edge. A protective cover is connected to the base through a limiting member. The limiting member includes a circular spiral ring. The inner wall of the vertical edge is provided with an internal thread connected to the circular spiral ring. The side wall of the circular spiral ring is provided with a number of through holes. The side wall of the protective cover is provided with a number of counterbores. The circular spiral ring and the protective cover are connected by inserting a pin shaft into the through holes and the counterbores. A rubber cap is provided between the protective cover and the circular bottom edge, and a conical spring is provided between the rubber cap and the circular bottom edge.

2. The self-detachable rubber cap structure of the protective cover according to claim 1, wherein, A number of fracture grooves arranged along the length direction of the pin shaft are provided on the pin shaft, and the cross section of the fracture groove is a V-shaped opening.

3. The self-detachable rubber cap structure of the protective cover according to claim 1, characterized in that, One end of the pin shaft near the vertical edge of the base is arc-shaped.

4. The self-detachable rubber cap structure of the protective cover according to claim 1, wherein, A circular pressing ring for pressing against the root of the rubber cap is provided below the circular spiral ring.

5. The self-detachable rubber cap structure of the protective cover according to claim 1, characterized in that, A number of jacks for rotating the protective cover are provided on the top of the protective cover.

6. The self-detachable rubber cap structure of the protective cover according to claim 1, characterized in that The protective cover is made of a transparent material.

7. The self-detachable rubber cap structure of the protective cover according to claim 4, wherein The rubber cap is provided with a flanging at one end that fits against the vertical edge of the base, and the circular pressing ring is closely attached to the flanging of the rubber cap.

8. The self-detachable rubber cap structure of the protective cover according to claim 1, characterized in that, A groove is provided on the side wall of the protective cover, the groove covers the counterbore, and a number of notches communicating with the groove are provided on the top surface of the protective cover.

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