Casting equipment with integrated air source valve group

By integrating the air source valve group design, the air storage cylinder is divided into a high-pressure chamber and a low-pressure chamber, and the air path is controlled by the slide valve to directly drive the throwing hook mechanism for throwing. This solves the problems of large size, heavy weight and complex connection of pneumatic throwing devices, and improves portability and mobility.

CN121557780APending Publication Date: 2026-02-24SHANGHAI UNIV OF ENG SCI
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Patent Information

Application Number
CN202511986666.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing pneumatic projectile devices are bulky and heavy due to their external air source structure, which reduces their ease of use and mobility, limiting their application potential in rapid response and rescue scenarios.

Method used

The integrated air source valve group design divides the air storage tank into a high-pressure chamber and a low-pressure chamber, and the valve mechanism is directly set at the air hole connecting the two chambers. The air passage is opened and closed by controlling the slide valve, which directly drives the throwing hook mechanism to launch.

Benefits of technology

This design achieves a compact structure and improved portability for the projectile equipment, solving the problems of large size, heavy weight, and complex connections caused by traditional external air source structures, thus improving ease of use and mobility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of casting equipment, and particularly relates to casting equipment with an integrated gas source valve bank.The casting equipment is characterized in that a high-pressure cavity is filled with high-pressure gas in advance, a valve mechanism is closed, so that a first gas hole and a second gas hole are disconnected, and the high-pressure cavity is isolated from a low-pressure cavity; during triggering, the valve mechanism is opened to enable the first air hole to be communicated with the second air hole, high-pressure air in the high-pressure cavity enters the low-pressure cavity through the second air hole, the valve mechanism and the first air hole, then the hook throwing mechanism communicated with the low-pressure cavity is driven to be separated from the air storage cylinder, and throwing is completed. The air reservoir is divided into the high-pressure cavity and the low-pressure cavity by the partition plate, and the valve mechanism is directly arranged at the first air hole and the second air hole which are communicated with the two cavities, so that the integrated air source valve group is formed, and the problems of large equipment size, heavy weight and poor use convenience caused by a traditional external air source structure are effectively solved; and the casting equipment is more compact in structure and better in portability.
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Description

Technical Field

[0001] This invention belongs to the field of projectile equipment technology, and particularly relates to a projectile equipment with an integrated gas source valve assembly. Background Technology

[0002] Projectile mechanisms, as a common type of rescue equipment, typically use high-pressure gas or gunpowder to propel targets such as rope loops and hooks to designated locations. Pneumatic projectile mechanisms are widely used due to their advantages, including good safety and controllability, short preparation time for repeated launches, and high cost-effectiveness. However, most common pneumatic projectile devices currently employ an external gas source structure, meaning the gas storage element is independently located outside the device, and the valve assembly is usually separate from the gas source. This structural layout results in a large overall weight and bulky structure, reducing ease of use and mobility, and limiting its application potential in rapid response rescue scenarios. Summary of the Invention

[0003] The purpose of this invention is to provide a projectile device with an integrated gas source valve assembly to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] A projectile device with an integrated gas source valve assembly includes: a gas storage cylinder, wherein a partition is provided inside the gas storage cylinder, the partition dividing the gas storage cylinder into a low-pressure chamber and a high-pressure chamber, the high-pressure chamber being filled with high-pressure gas, and a first air hole and a second air hole being provided on the outer wall of the gas storage cylinder, the first air hole communicating with the low-pressure chamber and the second air hole communicating with the high-pressure chamber, both the first air hole and the second air hole being close to the partition;

[0006] A valve mechanism is provided on the outside of the gas storage cylinder, which is used to connect or disconnect the first air hole from the second air hole;

[0007] One end of the gas storage cylinder is equipped with a throwing hook mechanism, which is connected to the low-pressure chamber.

[0008] In the projectile device with an integrated gas source valve assembly of the present invention, the valve mechanism includes a slide valve slidably connected to the outer wall of the gas storage cylinder, a sealing structure is provided between the slide valve and the outer wall of the gas storage cylinder, and a gas guide cavity is circumferentially opened on the inner wall of the slide valve, and the gas guide cavity is correspondingly arranged with the second gas hole or the first gas hole and the second gas hole.

[0009] In the projectile device with an integrated gas source valve assembly of the present invention, the projectile hook mechanism includes a plunger sleeve slidably connected to the outside of the slide valve, one end of the plunger sleeve is closed, a projectile hook is fixedly installed at the closed end of the plunger sleeve, and the closed end of the plunger sleeve is correspondingly arranged with the opening of the low-pressure chamber.

[0010] In the projectile device with an integrated gas source valve assembly of the present invention, one end of the slide valve is fixedly connected to a valve seat, the valve seat is slidably connected to the outer side wall of the gas storage cylinder, the end of the valve seat away from the slide valve is abutted against a spring, the spring is sleeved on the outer side of the gas storage cylinder, the other end of the spring abuts against a spring seat, the spring seat abuts against a cylinder seat, and the cylinder seat is threadedly connected to the end of the gas storage cylinder.

[0011] In the projectile device with an integrated air source valve assembly of the present invention, a fixing member is threadedly connected to the outer wall of the cylinder seat, and a trigger plate is detachably connected to the fixing member, the trigger plate being connected to the valve seat.

[0012] In the projectile device with an integrated air source valve group of the present invention, an air inlet is provided on the cylinder seat, and a one-way valve is fixedly installed in the air inlet.

[0013] In the projectile device with an integrated gas source valve assembly of the present invention, a base is fixedly installed at the end of the cylinder seat away from the gas storage cylinder by bolts, and a fastening sleeve is provided between the base and the cylinder seat, the fastening sleeve being sleeved on the outside of the bolts.

[0014] In the projectile device with an integrated air source valve assembly of the present invention, one end of the mounting plate is provided between the cylinder seat and the base, and the other end of the mounting plate is provided with a mounting hole, which is detachably connected to the fixing member.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] In this invention, the high-pressure chamber is pre-filled with high-pressure gas, and the valve mechanism is closed to disconnect the first and second air holes, thus isolating the high-pressure chamber from the low-pressure chamber. Upon triggering, the valve mechanism opens to connect the first and second air holes, allowing the high-pressure gas in the high-pressure chamber to enter the low-pressure chamber through the second air hole, the valve mechanism, and the first air hole. Subsequently, the throwing hook mechanism connected to the low-pressure chamber is driven to disengage from the gas storage cylinder, completing the throwing process. By dividing the gas storage cylinder into a high-pressure chamber and a low-pressure chamber with a partition, and directly placing the valve mechanism at the first and second air holes connecting the two chambers, an integrated gas source valve group is formed. This effectively solves the problems of large equipment size, heavy weight, and poor ease of use caused by traditional external gas source structures, making the throwing equipment more compact and portable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the partition during the preparation stage of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the partition plate during the projectile stage of the present invention;

[0021] Among them, 1-1, throwing hook; 1-2, plunger sleeve; 2-1, slide valve; 2-2, valve seat; 3-1, air reservoir; 3-2, cylinder seat; 3-3, one-way valve; 4-1, spring; 4-2, spring seat; 4-3, trigger plate; 4-4, fixing part; 5-1, fastening sleeve; 5-2, bolt; 5-3, base; 5-4, mounting plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1 to 3 The present invention discloses a projectile device with an integrated gas source valve group, comprising: a gas storage cylinder 3-1, a partition plate provided inside the gas storage cylinder 3-1, the partition plate dividing the gas storage cylinder 3-1 into a low-pressure chamber and a high-pressure chamber, the high-pressure chamber being used to fill high-pressure gas, a first air hole and a second air hole being provided on the outer side wall of the gas storage cylinder 3-1, the first air hole communicating with the low-pressure chamber, the second air hole communicating with the high-pressure chamber, and both the first air hole and the second air hole being close to the partition plate;

[0025] A valve mechanism is provided on the outside of the gas storage cylinder 3-1. The valve mechanism is used to connect or disconnect the first gas hole from the second gas hole.

[0026] One end of the gas storage cylinder 3-1 is equipped with a throwing hook mechanism, which is connected to the low-pressure chamber.

[0027] A high-pressure chamber and a low-pressure chamber are formed by a partition inside the gas storage cylinder 3-1. The passage between the high-pressure chamber and the low-pressure chamber is connected or disconnected by controlling the external valve mechanism. During ejection, high-pressure gas enters the low-pressure chamber from the high-pressure chamber through the valve mechanism, directly pushing the ejection hook mechanism connected to the low-pressure chamber, causing the ejection hook mechanism to separate from the gas storage cylinder 3-1 and be ejected.

[0028] It achieves the integration of air source and valve assembly, fundamentally overcoming the problems of large equipment size, heavy weight, and complex connection caused by traditional external air source structure.

[0029] In one alternative embodiment, the valve mechanism includes a slide valve 2-1 that is slidably connected to the outer wall of the gas storage cylinder 3-1. A sealing structure is provided between the slide valve 2-1 and the outer wall of the gas storage cylinder 3-1. An air guide cavity is circumferentially opened on the inner wall of the slide valve 2-1. The air guide cavity is correspondingly provided with a second air hole or a first air hole and a second air hole.

[0030] When the sliding valve 2-1 aligns the air guide chamber on its inner wall with both the first and second air holes on the gas cylinder 3-1, the high-pressure chamber and the low-pressure chamber are connected through the air guide chamber. When the sliding valve 2-1 slides and the air guide chamber is offset from either air hole, the passage is cut off. The sealing structure ensures that gas will not leak from the gap between the sliding valve 2-1 and the gas cylinder 3-1.

[0031] The on / off control of the gas path can be achieved by linear sliding of the slide valve 2-1. It has a simple structure, fast action, good sealing performance, and is conducive to the instantaneous release of high-pressure gas.

[0032] In one alternative embodiment, the throwing mechanism includes a plunger sleeve 1-2 slidably connected to the outside of the slide valve 2-1. One end of the plunger sleeve 1-2 is closed, and the throwing hook 1-1 is fixedly installed at the closed end of the plunger sleeve 1-2. The closed end of the plunger sleeve 1-2 corresponds to the opening of the low-pressure chamber.

[0033] When the high-pressure gas enters the low-pressure chamber, it acts directly on the closed end of the plunger sleeve 1-2, pushing the entire plunger sleeve 1-2, along with the throwing hook 1-1, to slide along the outside of the slide valve 2-1, completing the projection. The plunger sleeve 1-2 serves as both the carrier of the projectile and its inner wall forms a sliding guide pair with the outer wall of the slide valve 2-1. Its compact structure directly converts gaseous power into the linear motion of the projectile, resulting in high energy transfer efficiency.

[0034] In one alternative embodiment, a valve seat 2-2 is fixedly connected to one end of the slide valve 2-1. The valve seat 2-2 is slidably connected to the outer wall of the air storage cylinder 3-1. A spring 4-1 is abutted at the end of the valve seat 2-2 away from the slide valve 2-1. The spring 4-1 is sleeved on the outer side of the air storage cylinder 3-1. The other end of the spring 4-1 abuts against a spring seat 4-2. The spring seat 4-2 abuts against a cylinder seat 3-2. The cylinder seat 3-2 is threadedly connected to the end of the air storage cylinder 3-1.

[0035] In one alternative, a fixing member 4-4 is threaded onto the outer wall of the cylinder seat 3-2, and a trigger plate 4-3 is detachably connected to the fixing member 4-4, which is connected to the valve seat 2-2.

[0036] One end of the trigger plate 4-3 is connected to the valve seat 2-2, and the other end is constrained by the fixing member 4-4, thereby overcoming the elastic force of the spring 4-1 and locking the slide valve 2-1 in the ready position. When triggered, by releasing the trigger plate 4-3, the connection between the trigger plate 4-3 and the fixing member 4-4 is released, and the constraint on the valve seat 2-2 is released. Under the action of the spring 4-1, the valve seat 2-2 pushes the slide valve 2-1, and the high-pressure chamber and the low-pressure chamber are connected through the air guide chamber.

[0037] In one alternative, an air inlet is provided on the cylinder base 3-2, and a one-way valve 3-3 is fixedly installed inside the air inlet.

[0038] High-pressure gas can be injected into the high-pressure chamber through the air inlet on the cylinder seat 3-2 and the one-way valve 3-3. The one-way valve 3-3 can prevent gas backflow.

[0039] In one alternative, a base 5-3 is fixedly installed on the end of the cylinder seat 3-2 away from the gas storage cylinder 3-1 by bolt 5-2. A fastening sleeve 5-1 is provided between the base 5-3 and the cylinder seat 3-2, and the fastening sleeve 5-1 is sleeved on the outside of the bolt 5-2.

[0040] The base 5-3 is securely connected to the cylinder base 3-2 using bolts 5-2 and fastening sleeve 5-1. The fastening sleeve 5-1 serves to position the equipment and enhance the connection rigidity. This provides a stable base mounting point, facilitating the gripping, fixing, or installation of the equipment onto other bases, resulting in high overall structural strength.

[0041] In one alternative embodiment, a mounting plate 5-4 is provided at one end between the cylinder base 3-2 and the base 5-3, and a mounting hole is provided at the other end of the mounting plate 5-4. The mounting hole is detachably connected to the fastener 4-4.

[0042] One end of the mounting piece 5-4 is pressed between the cylinder seat 3-2 and the base 5-3 for fixation, while the mounting hole at the other end fits onto the fixing piece 4-4 to constrain the trigger piece 4-3.

[0043] A first step is provided on the outer wall of the air storage cylinder 3-1. The slide valve 2-1 is slidably connected to the small end of the air storage cylinder 3-1. A second step is provided on the outer side of the slide valve 2-1. The plunger sleeve 1-2 is slidably connected to the large end of the air storage cylinder 3-1 and the small end of the slide valve 2-1. Multiple sealing rings are provided between the inner wall of the slide valve 2-1 and the outer wall of the air storage cylinder 3-1. The sealing rings are located on the inner wall of the slide valve 2-1 or the outer wall of the air storage cylinder 3-1. A sealing ring is provided between the plunger sleeve 1-2 and the large end of the air storage cylinder 3-1. The sealing rings are located on the plunger sleeve 1-2 or the large end of the air storage cylinder 3-1.

[0044] The first step limits the movement of the slide valve 2-1, and the second step limits the movement of the plunger sleeve 1-2.

[0045] High-pressure gas is introduced into the high-pressure chamber of the gas storage cylinder 3-1 through the one-way valve 3-3 on the cylinder seat 3-2. At this time, the slide valve 2-1 is in the closed position under the action of the trigger plate 4-3 and the fixing member 4-4, and its air guide chamber is not connected to the first air hole and the second air hole, thus isolating the high-pressure chamber from the low-pressure chamber. The trigger plate 4-3 is connected to the valve seat 2-2 and the fixing member 4-4, and the equipment is in a safe ready-to-launch state. When it is necessary to launch, the release mechanism disengages the trigger plate 4-3 from the fixing member 4-4, and the air guide chamber on the slide valve 2-1 is simultaneously aligned with the first air hole and the second air hole. The gas in the high-pressure chamber immediately flows into the low-pressure chamber through the second air hole, the air guide chamber, and the first air hole. The high-pressure gas flowing into the low-pressure chamber directly acts on the closed end of the plunger sleeve 1-2, pushing the plunger sleeve 1-2 and the launching hook 1-1 to slide at high speed along the outside of the slide valve 2-1, launching the launching hook 1-1.

[0046] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0047] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A projectile device with an integrated air source valve assembly, characterized in that, include: A gas storage cylinder (3-1) is provided with a partition inside the gas storage cylinder (3-1), which divides the gas storage cylinder (3-1) into a low-pressure chamber and a high-pressure chamber. The high-pressure chamber is used to fill high-pressure gas. A first air hole and a second air hole are provided on the outer wall of the gas storage cylinder (3-1). The first air hole communicates with the low-pressure chamber, and the second air hole communicates with the high-pressure chamber. Both the first air hole and the second air hole are close to the partition. A valve mechanism is provided on the outside of the gas storage cylinder (3-1), which is used to connect or disconnect the first air hole from the second air hole; One end of the gas storage cylinder (3-1) is provided with a throwing hook mechanism, which is connected to the low-pressure chamber.

2. The projectile device with an integrated gas source valve assembly according to claim 1, characterized in that: The valve mechanism includes a slide valve (2-1) slidably connected to the outer wall of the gas storage cylinder (3-1). A sealing structure is provided between the slide valve (2-1) and the outer wall of the gas storage cylinder (3-1). A gas guiding cavity is circumferentially opened on the inner wall of the slide valve (2-1). The gas guiding cavity is correspondingly arranged with the second air hole or the first air hole and the second air hole.

3. The projectile device with an integrated gas source valve assembly according to claim 2, characterized in that: The throwing hook mechanism includes a plunger sleeve (1-2) slidably connected to the outside of the slide valve (2-1). One end of the plunger sleeve (1-2) is closed, and a throwing hook (1-1) is fixedly installed on the closed end of the plunger sleeve (1-2). The closed end of the plunger sleeve (1-2) is corresponding to the opening of the low-pressure chamber.

4. The projectile device with an integrated gas source valve assembly according to claim 2, characterized in that: One end of the slide valve (2-1) is fixedly connected to a valve seat (2-2), and the valve seat (2-2) is slidably connected to the outer wall of the gas storage cylinder (3-1). The end of the valve seat (2-2) away from the slide valve (2-1) abuts against a spring (4-1), and the spring (4-1) is sleeved on the outside of the gas storage cylinder (3-1). The other end of the spring (4-1) abuts against a spring seat (4-2), and the spring seat (4-2) abuts against a cylinder seat (3-2). The cylinder seat (3-2) is threadedly connected to the end of the gas storage cylinder (3-1).

5. A projectile device with an integrated gas source valve assembly according to claim 4, characterized in that: A fixing member (4-4) is threadedly connected to the outer wall of the cylinder seat (3-2), and a trigger plate (4-3) is detachably connected to the fixing member (4-4). The trigger plate (4-3) is connected to the valve seat (2-2).

6. The projectile device with an integrated gas source valve assembly according to claim 4, characterized in that: An air inlet is provided on the cylinder seat (3-2), and a one-way valve (3-3) is fixedly installed in the air inlet.

7. A projectile device with an integrated gas source valve assembly according to claim 4, characterized in that: The end of the cylinder seat (3-2) away from the gas storage cylinder (3-1) is fixedly installed with a base (5-3) by a bolt (5-2). A fastening sleeve (5-1) is provided between the base (5-3) and the cylinder seat (3-2), and the fastening sleeve (5-1) is sleeved on the outside of the bolt (5-2).

8. A projectile device with an integrated gas source valve assembly according to claim 7, characterized in that: One end of the mounting plate (5-4) is provided between the cylinder base (3-2) and the base (5-3), and the other end of the mounting plate (5-4) is provided with a mounting hole, which is detachably connected to the fixing member (4-4).