A grenade continuous feeding device

Abstract

The application discloses a hand grenade continuous feeding device, belongs to the technical field of unmanned planes, and is used for continuously feeding hand grenades when the hand grenades are dropped over a target area. The device comprises a shell, a flexible rope, an automatic rope collecting box, a sliding rail, a bullet ejecting block, a pull ring fixing frame and the like. Only a matching pull ring fixing frame needs to be added to each hand grenade, so that the series connection of multiple hand grenades can be realized through the sliding rail, and the device has simple structure and high reliability. The automatic rope collecting box, the flexible rope and the bullet ejecting block provide pre-tightening force for the series connected hand grenades, so that the continuous feeding of the hand grenades can be realized.

Description

Technical Field

[0001] This invention discloses a continuous grenade feeding device, belonging to the field of unmanned aerial vehicle (UAV) technology, for continuously feeding grenades when dropping them over a target area. Background Technology

[0002] Currently, the use of drone platforms is quite mature, and a complete system has been established. Drones can be used for tasks such as material delivery and area reconnaissance. However, from a current usage perspective, the methods of delivering materials using drones are relatively limited, mainly due to the weight of the delivery device and the complexity of the mechanism. The automatic grenade-dropping devices found for drones are mainly structured as one grenade per canister; that is, one grenade is stored in each canister, and after the grenade is delivered, the canister is empty. To carry multiple grenades, multiple canisters need to be mounted, increasing the drone's ineffective payload and reducing the overall ammunition capacity. Therefore, existing grenade-dropping devices mounted on this type of drone platform have the disadvantage of not being able to continuously supply grenades. Summary of the Invention

[0003] The purpose of this invention is to solve the problem of continuous grenade feeding in grenade delivery devices, and to provide a continuous grenade feeding device suitable for use on unmanned aerial vehicle platforms.

[0004] The technical solution adopted by the present invention to solve the above problems is as follows: The continuous grenade feeding device includes a housing 1, a flexible cable 2, an automatic cable retraction box 3, a slide rail 4, a top grenade block 5, and a pull ring fixing bracket 6; the slide rail 4 and the automatic cable retraction box 3 are fixed on the housing 1; the flexible cable 2 extends out from the automatic cable retraction box 3, and the free end of the flexible cable 2 is fixed to the top grenade block 5; the housing 1 is provided with a bottom upper limit surface 101, a bottom lower limit surface 103, a bottom side limit surface 102, a top side limit surface 104, and a top upper limit surface 105; one end of the top grenade block 5 is a guide mechanism 502 that can slide freely along the double sliding groove 402 of the slide rail 4, and the other end of the top grenade block 5 is a curved surface structure 501 that fits against the pull ring type grenade housing 701; the pull ring fixing bracket 6 is fixed to the pull ring type grenade pull ring 702, and the pull ring fixing bracket 6 can slide freely along the lower opening sliding groove 401 of the slide rail 4.

[0005] The pull ring fixing bracket 6 has an annular groove 601 in the middle and symmetrical protrusions 602 on both outer sides. The annular groove 601 is fixed to the pull ring 702 of the pull ring grenade by interference fit or snap-fit. The symmetrical protrusions 602 form a sliding pair with the slide rail 4 by clearance fit.

[0006] The automatic retrieval box 3 uses a worm spring or a torque motor as the power element for automatic retrieval.

[0007] The guide mechanism 502 of the top spring block 5 consists of two sets of pulleys arranged in front and behind or smooth circular protrusions. The guide mechanism 502 can slide along the double slide groove 402.

[0008] The housing 1, slide rail 4, and top spring block 5 are made of aluminum alloy or fiber composite material.

[0009] The beneficial effects of this invention are as follows: The continuous grenade feeding device only requires embedding the pull ring of each grenade into a matching pull ring fixing bracket to realize the series connection of multiple grenades via a slide rail, which is simple in structure and highly reliable; the automatic retrieval box, flexible cable, and top grenade block provide pre-tension to the series grenades, enabling continuous feeding; and the use of aluminum alloy, glass fiber composite, or carbon fiber composite materials results in high structural strength and light weight, meeting the lightweight requirements of UAV-borne devices. Attached Figure Description

[0010] Figure 1 Schematic diagram of the side section of the continuous grenade feeding device

[0011] Figure 2 BB cross-sectional diagram of continuous grenade feeding device

[0012] Figure 3 CC cross-sectional diagram of a continuous grenade feeding device

[0013] Figure 4 Top spring block structure diagram

[0014] Figure 5 Schematic diagram of pull ring fixing bracket structure

[0015] In the diagram: 1. Shell, 101. Bottom upper limit surface, 102. Bottom side limit surface, 103. Bottom lower limit surface, 104. Top side limit surface, 105. Top upper limit surface, 2. Flexible cable, 3. Automatic cable retraction box, 4. Slide rail, 401. Lower opening slide groove, 402. Double slide groove, 5. Top explosive block, 501. Fitting curved surface structure, 502. Guide mechanism, 6. Pull ring fixing bracket, 601. Annular groove, 602. Symmetrical protrusion, 7. Pull ring type grenade, 701. Pull ring type grenade shell, 702. Pull ring. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1

[0018] Before using this device, installation is required. First, install the pull-ring retainer 6: remove the pull-ring grenade 7 from its packaging tube or bag, remove the protective cap, exposing the pull ring 702. Align the pull ring 702 with the annular groove 601 of the pull-ring retainer 6 and press firmly to engage the pull ring 702 into the annular groove 601. This completes the installation. Install multiple pull-ring grenades 7 onto the pull-ring retainers 6 to form a set.

[0019] Next, remove the top bomb block 5 from the double slide groove of the slide rail 4, and then install the assembled pull-ring type grenade 7 from the pull-ring fixing bracket 6 into the outer casing 1 in sequence: as follows Figure 1 As shown, first, the pull ring fixing bracket 6 is installed into the slide rail 4, and the symmetrical protrusions (602) are installed into the lower open slide groove 401. At the same time, the pull ring 702 extends downward along the slotted part of the open slide groove 401. The bottom of the pull ring type grenade casing 701 is in contact with the bottom upper limit surface 101, the bottom lower limit surface 103, and the bottom side limit surface 102 of the casing 1. The top of the pull ring type grenade 7 is in contact with the top side limit surface 104 and the top upper limit surface 105 of the casing 1. After the installation is completed, the pull ring fixing bracket 6 can slide freely in the lower open slide groove 401, while driving the pull ring type grenade 7 to slide.

[0020] After sequentially loading a set of pull-ring grenades 7, the top bomb block 5 is then loaded: First, the curved structure 501 of the top bomb block 5 is fitted against the outermost grenade casing 701, and then the guide mechanism 502 of the top bomb block 5 is slid inward along the double slide groove 402. Under the retraction action of the automatic retraction box 4, the top bomb block is pulled by the flexible cable 2 to move multiple pull-ring grenades 7 towards... Figure 2 and Figure 3 They gather on the left side.

[0021] An automatic feeding casing capable of holding eight 48mm pull-ring grenades was designed for use with the casing 1. The automatic reel box 3, fixed to the casing 1, uses a spiral spring as its energy storage element. Under no-load conditions, the preload is approximately 5N, and the maximum tension is 20N, providing a total stroke of 800mm. This ensures not only the timely delivery of all grenades but also the feeding speed. The flexible cable 2 is made of steel wire rope, connecting the top grenade block to the energy storage box. The guide mechanism 502 consists of two sets of pulleys positioned front and rear to reduce resistance during the movement of the pusher block 5. The casing 1, slide rail 4, and top grenade block 5 are made of fiber composite material.

Claims

1. A continuous grenade feeding device, characterized in that... The device includes a housing (1), a flexible cable (2), an automatic cable retractor (3), a slide rail (4), a top spring block (5), and a pull ring fixing bracket (6); the slide rail (4) and the automatic cable retractor (3) are fixed on the housing (1); the flexible cable (2) extends from the automatic cable retractor (3), and the free end of the flexible cable (2) is fixed to the top spring block (5); the housing (1) is provided with a bottom upper limit surface (101), a bottom lower limit surface (103), and a bottom side limit surface (102). Top side limiting surface (104), top upper limit limiting surface (105); one end of the top explosive block (5) is a guide mechanism (502) that slides freely along the double sliding groove (402) of the slide rail (4), and the other end of the top explosive block (5) is a curved surface structure (501) that fits with the pull ring type grenade shell (701); the pull ring fixing bracket (6) is fixed to the pull ring type grenade pull ring (702), and the pull ring fixing bracket (6) slides freely along the lower opening sliding groove (401) of the slide rail (4).

2. The continuous grenade feeding device as described in claim 1, characterized in that: The pull ring fixing bracket (6) has an annular groove (601) in the middle and symmetrical protrusions (602) on both outer sides. The annular groove (601) is fixed to the pull ring (702) of the pull ring grenade by interference fit or snap fastening. The symmetrical protrusions (602) form a sliding pair with the slide rail (4) by clearance fit.

3. The continuous grenade feeding device as described in claim 1, characterized in that: The automatic retrieval box (3) uses a worm spring or a torque motor as the power element for automatic retrieval.

4. The continuous grenade feeding device as described in claim 1, characterized in that: The guide mechanism (502) of the top spring block (5) consists of two sets of pulleys arranged in front and behind or smooth circular protrusions, and the guide mechanism (502) slides along the double slide groove (402).

5. The continuous grenade feeding device as described in claim 1, characterized in that: The housing (1), slide rail (4), and top spring block (5) are made of aluminum alloy or fiber composite material.

Images