New portable ejector for anti-aircraft gun

Abstract

The utility model discloses a portable ejector of new type for three-seven antiaircraft gun, including fixed calipers, force bar, V type spring piece, fixed screw, the inside of two clamping claws of fixed calipers is equipped with the threaded hole, the opening of V type spring piece is downward, and two ends are equipped in the threaded hole of corresponding clamping claw through fixed screw, force bar adopts fixed A type force bar or two movable force bars, fixed A type force bar includes two force bars and the reinforcing rod fixed between two force bars, and the front end interval of two force bars gradually reduces, and the front end of fixed A type force bar and two movable force bars is hollow pipe, when the antiaircraft gun is ejected, the clamping claw of fixed calipers is located in the barrel extraction cylinder notch part, and V type spring piece is in compression state, and the clamping jaw holds the ammunition cylinder bottom edge part, and the two hollow pipes of fixed A type force bar front end or the hollow pipe of movable force bar front end inserts the two foot positions under corresponding clamping jaw of fixed calipers, the utility model discloses a portable ejector of new type for three-seven antiaircraft gun, uses safety, and simple operation.

Description

Technical Field

[0001] This utility model relates to an ejector for handling the malfunction of a 37mm anti-aircraft gun that jams during hail suppression and rain enhancement. Background Technology

[0002] There are approximately 6,700 anti-aircraft guns currently in operation nationwide, including 478 in Guizhou Province and 44 in Zunyi City. These equipment are old and prone to jamming, accounting for over 10% of all operational incidents annually, and this number is increasing year by year. Troubleshooting jamming poses significant safety risks. County-level weather modification departments are generally unable to handle it independently and must establish a warning perimeter while awaiting dispatch of professional technicians from higher-level weather modification departments. Troubleshooting requires at least three people and involves heavy, bulky equipment with cumbersome operating procedures and low safety standards.

[0003] Currently, the ammunition unloading technology for 37mm anti-aircraft guns mainly relies on three traditional methods: disassembling the barrel, clearing the gun rod, and using a hydraulic ammunition unloader. For the hydraulic and gun rod unloaders, technicians must stand at the barrel opening; improper handling can cause serious injury or death to operators and damage to equipment, posing significant safety risks. Furthermore, the hydraulic ammunition unloader is large, heavy, and difficult to transport, with complex and time-consuming assembly steps, making it difficult for ordinary personnel to handle. The gun rod unloader requires at least three people to unload the ammunition. In terms of materials and manufacturing processes, the unloading devices mostly use ordinary steel, lacking surface anti-corrosion treatment (such as blackening), making them susceptible to corrosion and aging due to moisture, high temperatures, or chemical substances. Especially during frequent operations in severe weather, ammunition jamming is common, as gun malfunctions can lead to operational delays, and hail damage can cause significant economic losses, placing heavy pressure on the safety management of weather modification operations.

[0004] Traditional ammunition unloading technology has significant shortcomings: Structurally, hydraulic unloaders are bulky and inefficient; the gun barrel relies on manual labor and is prone to wear; operation requires close coordination among multiple people, posing extremely high safety risks and easily leading to personnel injuries or gun barrel deformation. Poor material corrosion resistance results in frequent maintenance, requiring precision tools for disassembly and lubrication, leading to high costs. Insufficient environmental adaptability leads to performance degradation and further increases the failure rate under harsh conditions such as heavy rain and low temperatures. Existing 37mm anti-aircraft gun ammunition unloading technology relies on heavy equipment, complex operation, and high-intensity human collaboration, resulting in core problems such as high safety hazards, low efficiency, and high maintenance costs. The combination of these multiple defects leads to low efficiency in grassroots response, prominent safety hazards, and seriously restricts the emergency response capabilities of weather modification operations.

[0005] Furthermore, in the existing 37mm anti-aircraft gun ejection technology, both the hydraulic ejector and the barrel ejector require technicians to stand at the gun barrel opening. Improper handling could cause serious injury or death to the operators, posing a certain safety risk. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a new portable ejector for 37mm anti-aircraft guns that is safe to use and easy to operate.

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] A novel portable ammunition ejector for a 37mm anti-aircraft gun includes a fixed caliper, a lever, a V-shaped spring, and fixing screws. The fixed caliper has threaded holes on the inner sides of its two jaws. The V-shaped spring has its opening facing downwards, and both ends are secured to the threaded holes of the corresponding jaws by fixing screws. The lever can be a fixed A-type lever or two movable levers. The fixed A-type lever includes two levers and a reinforcing rod fixed between the two levers, with the distance between the front ends of the two levers gradually decreasing. The front ends of the two levers of the fixed A-type lever and the two movable levers are hollow tubes. When ejecting ammunition from the anti-aircraft gun, the jaws of the fixed caliper are located at the barrel extraction notch, and the V-shaped spring is compressed. The jaws grip the bottom edge of the ammunition cartridge, and the two hollow tubes at the front end of the fixed A-type lever or the hollow tubes at the front end of the movable lever are inserted into the two feet below the corresponding jaws of the fixed caliper.

[0009] This invention utilizes a fixed caliper to engage the bottom edge of the main ammunition cartridge, and with the leverage of a fixed A-type extension rod, the cartridge is ejected. Simultaneously, the rebound force of a V-shaped spring plate causes the caliper's claws to engage with the notch in the barrel, supporting the caliper and preventing it from falling out.

[0010] When the anti-aircraft gun ejector clamps the ejection angle to exceed or be less than the angle formed by the front ends of the two extension rods of the fixed A-type extension rod, the ejection can be performed using a movable extension rod. This is done by inserting the two movable extension rods into the two lower feet of the fixed caliper through the hollow tube grooves.

[0011] Furthermore, both the fixed A-type extension bar and the movable extension bar are equipped with anti-slip grips at their two ends. These grips make it easier to apply force by releasing the spring.

[0012] Furthermore, the fixing caliper is made of 45 steel to meet the requirements for processing, toughness, and strength.

[0013] In some embodiments, as a preferred option, the surface of the fixed caliper is blackened to maintain the physical properties of the ejector and improve the product's corrosion resistance.

[0014] In some embodiments, as a preferred embodiment, the aforementioned portable ejector for the 37mm anti-aircraft gun includes a toolbox with multiple slots for mounting a fixed caliper, a fixed A-type extension rod, a movable extension rod, a V-type spring plate, and a fixing screw.

[0015] This invention has the following advantages over the prior art:

[0016] This invention utilizes a well-designed clamping mechanism, employing a fixed caliper in conjunction with a V-shaped spring plate to stably and reliably hold the projectile, preventing slippage or damage during ejection. Furthermore, it leverages the fixed A-type extension rod to directly pull out the ejected projectile, replacing the traditional push-out ejection method. In terms of safety, the operator is safer as they no longer need to stand at the barrel opening. Adjusting the barrel and fixed azimuth mechanism during operation further enhances safety by regulating the firing area. Operationally, it requires less effort. Structurally, it eliminates the need for a complex hydraulic ejection device, resulting in a simpler design.

[0017] This utility model of a magazine ejector has a simple structure and is easy to manufacture. Furthermore, it requires no disassembly of components such as the barrel during use, making assembly efficient and convenient. It is also easy to carry and transport when needed, further enhancing its ease of use.

[0018] This utility model of ammunition ejector is applicable to the ammunition jamming problem of Type 55 and Type 65 anti-aircraft guns. It is widely applicable, safe and convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the new portable ejector for the 37mm anti-aircraft gun of this utility model;

[0020] Figure 2 This is a schematic diagram illustrating the use of the new portable ejector for the 37mm anti-aircraft gun.

[0021] In the diagram, 1-fixed caliper, 11-claw, 2-V-type spring plate, 3-fixing screw, 4-fixed A-type extension bar, 41-extension bar, 42-reinforcing bar, 43-grip, 5-movable extension bar, 51-grip, 6-barrel draw tube notch, 7-bottom edge of ammunition cartridge. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 As shown, this utility model of a portable ejector for a 37mm anti-aircraft gun includes a fixed caliper 1, a fixed A-type extension rod 4, a V-type spring plate 2, a fixing screw 3, and a movable extension rod 5. The two jaws 11 of the fixed caliper 1 have threaded holes on their inner sides. The opening of the V-type spring plate 2 faces downwards, and both ends are secured to the threaded holes of the corresponding jaws by the fixing screws 3. The fixed A-type extension rod 4 includes two extension rods 41 and a reinforcing rod 42 fixed between the two extension rods. The front ends of the two extension rods 41 are hollow tubes, adapted to the two feet below the jaws of the fixed caliper. There are two movable extension rods 5, each with a hollow tube groove at its front end adapted to the rear end of the fixed A-type extension rod.

[0024] The machining dimensions are as follows: The fixed caliper is made of 45# steel with a blackened surface treatment. The overall shape is machined using wire cutting, and the notches are milled using a vertical machining center to ensure dimensional accuracy. Drilling and tapping are performed, and the caliper jaws are rounded to blunt sharp edges, ensuring the precise dimensions and smooth surfaces of all components of the ejector, reducing jamming or damage caused by manufacturing errors. A fixed A-type extension rod is 60cm long, and a movable extension rod is 60cm long, serving as a spare for the fixed A-type extension rod.

[0025] like Figure 2 As shown, the specific operation is as follows:

[0026] ① Adjust the barrel to a height of 45 degrees or higher (mainly for safety and ease of operation);

[0027] ② Fix the steering gear and adjust it within the firing range to handle any malfunctions, ensuring safety and preventing directional movement;

[0028] ③ Gently place the grip into the foregrip buckle and fasten it (the grip must be returned before removing the breechblock and other parts);

[0029] ④ Remove the top cover, automatic latch cover, lower cover of the machine box, cylinder shaft, cylinder and breechblock in sequence;

[0030] ⑤ Take out the fixed caliper, install the 6*20mm, adjust it to the maximum, lower the caliper fulcrum, insert the fixed caliper jaws into the barrel tube notch 6, and lock the jaws into the bottom edge of the ammunition cartridge 7.

[0031] ⑥ Insert the movable extension rod 5 (or a fixed type A extension rod) into the two feet below the fixed caliper 1, and forcefully move the extension rod until the ammunition cartridge is removed.

Claims

1. A novel portable ejector for a 37mm anti-aircraft gun, characterized in that, The system includes a fixed caliper, a lever, a V-shaped spring, and fixing screws. The fixed caliper has threaded holes on the inner sides of its two jaws. The V-shaped spring has its opening facing downwards, and both ends are secured to the threaded holes of the corresponding jaws by fixing screws. The lever is either a fixed A-type lever or two movable levers. The fixed A-type lever includes two levers and a reinforcing rod fixed between the two levers, with the distance between the front ends of the two levers gradually decreasing. The front ends of the two levers and two movable levers of the fixed A-type lever are hollow tubes. When unloading the anti-aircraft gun, the jaws of the fixed caliper are located at the barrel extraction notch, and the V-shaped spring is compressed. The jaws grip the bottom edge of the ammunition cartridge. The two hollow tubes at the front end of the fixed A-type lever or the hollow tubes at the front end of the movable lever are inserted into the two feet below the corresponding jaws of the fixed caliper.

2. The novel portable ammunition ejector for the 37mm anti-aircraft gun according to claim 1, characterized in that, The two ends of the fixed A-type extension bar are equipped with anti-slip grips.

3. The novel portable ammunition ejector for the 37mm anti-aircraft gun according to claim 1, characterized in that, The movable extension bar is equipped with a non-slip grip at the end of the rod.

4. The novel portable ammunition ejector for the 37mm anti-aircraft gun according to claim 1, characterized in that, The fixing clamp is made of 45 steel.

5. The novel portable ammunition ejector for the 37mm anti-aircraft gun according to claim 4, characterized in that, The fixing caliper is finished with a blackening process.

6. The novel portable ammunition ejector for the 37mm anti-aircraft gun according to claim 1, characterized in that, The new portable ejector for the 37mm anti-aircraft gun includes a toolbox with multiple slots for mounting calipers, a fixed A-type lever, a V-type spring plate, and mounting screws.

7. The novel portable ammunition ejector for the 37mm anti-aircraft gun according to claim 1, characterized in that, The new portable ejector for the 37mm anti-aircraft gun includes a toolbox with multiple slots for mounting a fixed caliper, a fixed A-type extension rod, a V-type spring plate, a fixing screw, and a movable extension rod.

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