Valveless high pressure constant low pressure release power source

Abstract

The application discloses a valve-free high-pressure constant low-pressure release power source, which comprises a gas storage bottle, a connecting piece, an unsealing assembly and a driving assembly, the gas storage bottle is loaded with high-pressure gas, at least one first through hole is formed in the gas storage bottle, and a sealing piece is sealingly connected in the first through hole; the connecting piece is fixedly connected to the gas storage bottle, a gas outlet is arranged on the connecting piece, a power cavity and a third through hole are arranged in the connecting piece; the unsealing assembly is slidingly connected in the connecting piece, and the unsealing assembly is used for unsealing the sealing piece to form a passage between the first through hole and the third through hole; and the driving assembly is used for controlling the unsealing assembly. The valve-free high-pressure constant low-pressure release power source has the beneficial effects that stable, controllable and constant low-pressure release can be realized from a high-pressure gas source to an output end, an initial overload peak caused by instantaneous full opening of a traditional rupture disc is effectively inhibited, carrier posture deviation and structure damage are avoided, and a problem of insufficient power in a later period caused by abrupt pressure decay of the gas storage bottle is compensated.

Description

Technical Field

[0001] This invention relates to the field of catapult launch power device technology, specifically a valveless high-pressure constant low-pressure release power source. Background Technology

[0002] In rapid ejection scenarios such as drone cold launch, anti-drone net capture, high-altitude fireworks display, and high-rise fire rescue, the selection and control of the power source are the core factors determining the safety, stability, and adaptability of medium-load ejection systems.

[0003] Compressed gas launchers, with their advantages of no open flame, high safety, compact structure, refillable and reusable design, and wide applicability, effectively compensate for the shortcomings of various traditional solutions. They are suitable for medium-load catapult operations in urban and rural areas, the field, and high-rise buildings, making them the preferred power source for mobile catapult scenarios with a wide range of applications.

[0004] Currently, most compressed gas ejection systems employ a rupture disc-based, single-puncture, fully open energy release structure. This achieves instantaneous full opening of the gas path and a one-time release of high-pressure gas through a single action. During operation, this structure results in an extremely high initial pressure difference in the gas cylinder, causing a rapid gas surge and an excessively high initial power peak. This can easily lead to carrier overload, attitude deviation, and structural damage, reducing operational stability and success rate. Simultaneously, the gas pressure drops abruptly, resulting in insufficient power supply in the later stages and completely uncontrollable power output. This leads to poor consistency in initial velocity, range, and landing accuracy, significantly limiting the operational performance and adaptability of compressed gas ejection systems.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a valveless high-pressure constant low-pressure release power source. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a valveless high-pressure constant low-pressure release power source to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a valveless high-pressure constant low-pressure release power source, comprising a gas storage cylinder, a connector, an opening assembly, and a drive assembly. The gas storage cylinder contains high-pressure gas and has at least one first through hole, within which a sealing plate is sealed. The connector is fixedly connected to the gas storage cylinder and has an outlet. The connector also contains a power chamber and a third through hole. The opening assembly is slidably connected within the connector and is used to open the sealing plate, creating a passage between the first and third through holes. The drive assembly controls the opening assembly to open the sealing plate.

[0008] In one or more embodiments of the present invention, the driving component is a propellant, the propellant is installed in the power chamber, a lead wire is fixedly connected to the propellant, and the end of the lead wire away from the propellant passes through a connector.

[0009] In one or more embodiments of the present invention, the unsealing assembly includes a piston seat and a plurality of first needle tubes. The piston seat is slidably connected to a connector. The piston seat has a second through hole that communicates with a third through hole. The piston seat has an integrally formed piston head and a plurality of first wedge blocks. The piston head is slidably connected to a power chamber. A second wedge block that wedges with the first wedge block is fixedly connected to the first needle tube.

[0010] In one or more embodiments of the present invention, a first spring is fixedly connected to the second wedge block, the first spring is sleeved on the first needle tube, and the end of the first spring away from the second wedge block is fixedly connected to the gas storage cylinder.

[0011] In one or more embodiments of the present invention, the lengths and apertures of the plurality of first needle tubes are different from each other.

[0012] In one or more embodiments of the present invention, the unsealing assembly includes a push rod slidably connected within a power chamber, a pull plate integrally formed on the push rod, and the sealing plate being fixedly connected to the pull plate.

[0013] In one or more embodiments of the present invention, the first through hole is a reducing hole, and the diameter of the first through hole is configured to gradually increase from the end closer to the pull plate to the end farther away from the pull plate.

[0014] In one or more embodiments of the present invention, the first through hole is an oblong hole or a rectangular hole.

[0015] In one or more embodiments of the present invention, the unsealing component includes: A fixing ring, which is coaxially aligned with the third through hole and fixedly installed inside the power cavity; The second needle tube is slidably connected inside the power chamber; Positioning beads are installed on the second needle tube, and the heights of the multiple positioning beads are all different. The second spring has one end fixedly connected to the fixed ring, and the other end of the second spring away from the fixed ring is fixedly connected to the second needle tube.

[0016] In one or more embodiments of the present invention, the driving component includes a slider that is slidably connected to a gas storage cylinder, and the slider has a release cavity that matches the positioning bead.

[0017] The beneficial effects of this invention are: it can achieve a stable, controllable, and constant low-pressure release from the high-pressure gas source to the output end, effectively suppressing the initial overload peak caused by the instantaneous full opening of the traditional rupture disc, avoiding carrier attitude deviation and structural damage, and compensating for the problem of insufficient power in the later stage caused by the cliff-like decline of gas cylinder pressure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced 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.

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention; Figure 2 This is a schematic diagram of the opening assembly according to the first embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention; Figure 4 This is a schematic diagram of the opening component according to the second embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the second embodiment of the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the unsealing component according to the second embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Gas cylinder; 101. First through hole; 11. Sealing plate; 2. Opening assembly; 21. Piston seat; 211. Piston head; 212. Second through hole; 213. First wedge block; 22. First needle tube; 221. Second wedge block; 222. First spring; 23. Push rod; 231. Pull plate; 24. Fixing ring; 25. Second spring; 26. Positioning bead; 27. Second needle tube; 3. Connector; 301. Power chamber; 302. Third through hole; 4. Drive assembly; 41. Power drug; 42. Slider; 421. Release chamber. Detailed Implementation

[0021] 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.

[0022] Example 1: like Figure 1 and Figure 2 As shown, a valveless high-pressure constant low-pressure release power source according to one embodiment of the present invention includes a gas storage cylinder 1, a connector 3, an opening assembly 2, and a drive assembly 4.

[0023] The gas storage cylinder 1 is used to store high-pressure gas. Multiple first through holes 101 are provided on the wall of the gas storage cylinder 1. A sealing plate 11 is sealed to each first through hole 101.

[0024] The connector 3 is welded to the top of the gas cylinder 1. The connector 3 has a power chamber 301 and a third through hole 302 inside. The third through hole 302 serves as a channel for high-pressure gas to flow from the gas cylinder 1 to the outside. The connector 3 also has an outlet, which communicates with the third through hole 302 and is used to connect to downstream equipment.

[0025] The opening component 2 is slidably connected within the connector 3. The opening component 2 is the core component that performs the opening action of the seal 11, and its movement direction is towards the seal 11. In the untriggered state, the tip of the opening component 2 maintains a predetermined gap with the seal 11 to avoid accidental puncture.

[0026] The drive assembly 4 is mounted on the connector 3 and is used to control the action of the unsealing assembly 2. In this embodiment, the drive assembly 4 is a propellant 41. The propellant 41 is installed in the power chamber 301 of the connector 3. A lead wire is fixedly connected to the propellant 41, with one end of the lead wire passing through the connector 3 and extending to the outside for connection with an external ignition controller or manual ignition device. The amount of propellant 41 is calculated to ensure that the gas pressure generated by its combustion is sufficient to drive the subsequent piston seat 21 to complete the entire puncture stroke, but without causing structural damage to the connector 3. Using the propellant 41 as the drive source has advantages such as no electromagnetic interference, instant start-up, and stable thrust, and is especially suitable for field, complex electromagnetic environments, or catapult scenarios with extremely high reliability requirements.

[0027] The unsealing assembly 2 includes a piston seat 21 and multiple first needle-piercing tubes 22. The number of first needle-piercing tubes 22 is the same as the number of first through holes 101, and they correspond one-to-one. A piston head 211 is integrally formed on the upper end of the piston seat 21, and the outer wall of the piston head 211 is in a sealing sliding fit with the inner wall of the power chamber 301. A second through hole 212 is axially formed in the middle of the piston seat 21. The upper end of the second through hole 212 communicates with a third through hole 302, and the lower end communicates with the inside of the gas storage cylinder 1 after piercing the sealing plate 11, thereby forming a gas release passage. Multiple first wedge blocks 213 are integrally formed on the lower end of the piston seat 21, and the number and position of the first wedge blocks 213 correspond one-to-one with the first needle-piercing tubes 22. Each first wedge block 213 has an inclined wedge surface.

[0028] The first needle tube 22 is a hollow, pointed tubular component. A second wedge block 221 is fixedly connected to the top of each first needle tube 22. The second wedge block 221 has an inclined surface that mates with the wedge surface of the first wedge block 213. When the piston seat 21 moves downward, the wedge surface of the first wedge block 213 presses against the wedge surface of the second wedge block 221, thereby converting the vertical movement of the piston seat 21 into the horizontal movement of the first needle tube 22, causing the tip of the first needle tube 22 to pierce the sealing plate 11.

[0029] Furthermore, a first spring 222 is fixedly connected to each second wedge 221. The first spring 222 is sleeved on the first needle tube 22, with one end abutting against the second wedge 221 and the other end fixedly connected to the outer wall of the gas storage cylinder 1. The spring force of the first spring 222 is directed to pull the first needle tube 22 away from the sealing plate 11. When the propellant 41 is not activated, the first spring 222 ensures that the tip of the first needle tube 22 maintains a safe distance from the sealing plate 11, preventing the sealing plate 11 from being prematurely punctured due to vibration, transportation, or other unexpected situations, thus improving storage and transportation safety.

[0030] It should be noted that the lengths of the multiple first needle tubes 22 are different. Specifically, according to the preset release logic, one of the first needle tubes 22 is the shortest, another is the next shortest, and so on, with the longest first needle tube 22 contacting the sealing plate 11 last, thereby achieving high-pressure constant low-pressure release.

[0031] Specifically, in the initial state, the gas cylinder 1 is filled with high-pressure gas at the designed pressure, and all sealing plates 11 are intact. The first spring 222 pulls each of the first needle tubes 22 back to the initial position away from the sealing plates 11. The piston seat 21 is located at the top dead center of the power chamber 301. The propellant 41 is not ignited.

[0032] When ejection is required, the propellant 41 inside the power chamber 301 is ignited via a fuse. The propellant 41 burns rapidly, generating a large amount of high-temperature, high-pressure gas, causing a sharp increase in pressure within the power chamber 301. This pressure acts on the upper surface of the piston head 211, pushing the piston seat 21 downwards.

[0033] When the piston seat 21 slides downward, the first wedge block 213 at its lower end moves downward accordingly. Since the first wedge block 213 and the second wedge block 221 are wedge-shaped and engaged, the inclined surface of the first wedge block 213 will gradually squeeze the inclined surface of the second wedge block 221, thereby pushing the corresponding first needle tube 22 to move towards the sealing plate 11 against the elastic force of the first spring 222.

[0034] First, the tip of the shortest needle tube 22 contacts its corresponding sealing plate 11 and punctures it under the continued downward pressure of the piston seat 21. At this time, the high-pressure gas in the gas storage cylinder 1 enters the first through hole 101 through the punctured hole, then through the inner cavity of the first needle tube 22, into the second through hole 212 of the piston seat 21, and then is output to the downstream ejection device through the third through hole 302 of the connector 3 and the outlet. Since only one (or a few) channels are open at this time, the gas release flow rate is relatively small, the pressure drop rate in the gas storage cylinder 1 is slow, and the initial pressure peak of the output is effectively suppressed.

[0035] As the piston seat 21 continues to descend, the shortest first needle tube 22 then contacts and punctures its seal 11, adding a gas release channel. At this point, the total gas release area increases, compensating for the decreasing flow rate caused by the pressure drop inside the gas storage cylinder 1.

[0036] Similarly, the stroke design of the piston seat 21 ensures that as the pressure inside the gas cylinder 1 gradually decreases, more and more of the first needle-piercing tubes 22 pierce the corresponding sealing plates 11 in sequence, gradually increasing the number of open release channels. Finally, when all the first needle-piercing tubes 22 have completed piercing, all the first through holes 101 are fully opened, reaching the maximum release flow rate.

[0037] Constant low-pressure effect: By reasonably setting the length difference of each first needle tube 22 and the combustion characteristics of the propellant 41, the piston seat 21 is ensured to descend at an appropriate speed, maintaining the output pressure at a relatively stable low level within a wide range of bottle pressure variations. Essentially, when the bottle pressure is high, only a few channels open, limiting the output flow; when the bottle pressure decreases, more channels open, increasing the output area, thereby compensating for the pressure drop and achieving a constant pressure effect.

[0038] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, by sequentially piercing the sealing plate 11 with the first needle tubes 22 of different lengths, an adaptive compensation mechanism is realized in which the release channel area gradually increases as the pressure inside the bottle decreases, effectively avoiding the problems of initial impact overload and subsequent power attenuation, resulting in stable output pressure, high ejection repeatability and high positioning accuracy.

[0039] Example 2: like Figure 3 and Figure 4 As shown, the opening assembly 2 includes a push rod 23. The push rod 23 is slidably connected within the power chamber 301. A pull plate 231 is integrally formed on the push rod 23. The sealing sheet 11 is fixedly connected to the pull plate 231, and a can-type tear-open mechanism is formed between the pull plate 231 and the sealing sheet 11.

[0040] Specifically, when the gas cylinder 1 makes the first through hole 101, the material is not completely removed. Instead, a thin-walled connecting area or pre-etched scoring line is pre-set around the hole. The sealing plate 11 is this thin-walled area, and its outer surface is fixedly connected to the pull plate 231 by riveting, welding, bonding, or integral stamping. When the push rod 23 moves the pull plate 231, the pull plate 231 applies a pulling force to the sealing plate 11, causing the sealing plate 11 to be neatly torn along the scoring line, thereby opening the gas release channel. The entire process is completely consistent with the opening principle of a pull tab on an aluminum can, with the pull plate 231 acting as the pull tab and the sealing plate 11 acting as the scoring plate on the can lid.

[0041] Furthermore, the first through hole 101 is a variable diameter hole, and the diameter of the first through hole 101 is configured to gradually increase from the end closer to the pull plate 231 to the end farther away from the pull plate 231. In other words, the first through hole 101 is funnel-shaped or conical: the smaller end is the side where the pull plate 231 is located at its starting position.

[0042] After the propellant 41 is ignited, the gas inside the propellant chamber 301 expands, pushing the push rod 23 to slide outward. Since the pull plate 231 is fixedly connected to the sealing strip 11, the pull plate 231 pulls the sealing strip 11 outward. As the displacement of the push rod 23 increases, the sealing strip 11 is gradually torn open. Because the diameter of the first through hole 101 gradually increases from the inside to the outside, the tear width of the sealing strip 11 continuously increases with the movement of the pull plate 231 during the tearing process. In other words, the effective flow area is not abrupt, but gradually increases from zero to fully open with the tearing stroke.

[0043] Specifically, when push rod 23 first begins to move, the seal 11 is only torn open by a tiny gap, resulting in an extremely low gas release flow rate, thus avoiding the initial pressure surge peak from the outset. As push rod 23 continues to move, the tear width gradually increases, and the flow area steadily increases. By rationally designing the taper of the first through hole 101 and the tear strength of the seal 11, the rate of increase in the flow area can be matched with the natural rate of decrease in pressure within the gas storage cylinder 1, thereby obtaining a nearly horizontal pressure-time curve at the output end.

[0044] Compared with the multi-needle sequential opening in Embodiment 1, the continuous gradual opening in this embodiment does not have any abrupt changes, and the pressure fluctuation is smaller, making it particularly suitable for loads that are extremely sensitive to overload and pressure pulsation.

[0045] Preferably, the first through-hole 101 can also be configured as an oblong or rectangular hole. As the pull plate 231 moves, the opening length increases linearly, and the area increases at a constant rate, which is beneficial for achieving linear pressure decay or a constant pressure output slope. Compared with a circular gradually expanding hole, an oblong or rectangular hole can provide a larger effective flow area change rate under the same push rod 23 stroke, which is suitable for scenarios that require rapid establishment of release flow.

[0046] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, the continuous gradual opening eliminates any step impact, and the initial overload can be controlled at an extremely low level, making it suitable for ejecting precision instruments, biological samples, and fragile loads. By adjusting the taper of the first through hole 101, the amount of propellant 41, and the combustion rate, the output pressure can be designed to achieve constant pressure, slow rise, slow fall, and step-by-step pressure increase, etc.

[0047] In addition, the tearing method directly transmits the pulling force through the fixed connection. After the seal 11 is torn off, it is still connected to the pull plate 231 and will not fall off and enter the air passage to cause blockage.

[0048] Example 3: like Figure 5 and Figure 6 As shown, in this embodiment, the driving component 4 includes a slider 42, and the unsealing component 2 includes a retaining ring 24, a locking bead 26, and a second needle-piercing tube 27. The slider 42 is slidably connected to the gas storage cylinder 1. Specifically, the slider 42 can be a sleeve-shaped part, fitted over the gas storage cylinder 1 or the connecting piece 3, and can slide up and down axially. The slider 42 has a release cavity 421 that matches the locking bead 26. The shape and depth of the release cavity 421 are sufficient to accommodate the protruding locking bead 26.

[0049] The retaining ring 24 is coaxially aligned with the third through hole 302 and is fixedly installed within the power chamber 301. Specifically, the retaining ring 24 is annular, with its central hole aligned with the third through hole 302 to ensure that high-pressure gas can smoothly exit through the third through hole 302 after the second needle tube 27 punctures the sealing plate 11. The second needle tube 27 is slidably connected within the power chamber 301. The number of second needle tubes 27 is the same as the number of first through holes 101. Each second needle tube 27 has a sharp piercing end facing the sealing plate 11, and a second spring 25 is provided between the other end of the second needle tube 27 and the retaining ring 24. The second needle tube 27 can slide axially within the power chamber 301, with its sliding direction perpendicular to the plane of the sealing plate 11.

[0050] The locking bead 26 is mounted on the second needle tube 27 (for example, each second needle tube 27 has one or more recesses or mounting holes on its sidewall, in which the locking bead 26 is embedded and can partially protrude). The heights of the multiple locking beads 26 are all different. As the slider 42 moves downward, the locking beads 26 gradually enter the release chamber 421. Due to the different axial positions of each locking bead 26, during the downward movement of the slider 42, the tallest locking bead 26 is encountered first, and this locking bead 26 enters the release chamber 421 first, releasing the lock of the corresponding second needle tube 27. The second spring 25 then pushes the second needle tube 27 to pierce its corresponding sealing plate 11. As the slider 42 continues to move downward, the remaining locking beads 26 enter the release chamber 421 in sequence, and the corresponding second needle tubes 27 pierce the sealing plates 11 in sequence. This achieves the sequential and time-sharing opening of multiple gas release channels.

[0051] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, it relies entirely on mechanical drive, does not use any hazardous materials, is unaffected by external factors such as ambient temperature and humidity, and exhibits excellent performance consistency. By precisely machining the axial position of the positioning bead 26 and the length of the release chamber 421, a very accurate time interval can be obtained, thereby achieving a precise pressure output curve.

[0052] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A valveless high-pressure constant low-pressure release power source, characterized in that, include: A gas storage cylinder (1) is filled with high-pressure gas. At least one first through hole (101) is opened on the gas storage cylinder (1). A sealing plate (11) is sealed inside the first through hole (101). Connector (3), the connector (3) is fixedly connected to the gas storage cylinder (1), the connector (3) is provided with an air outlet, and the connector (3) is provided with a power chamber (301) and a third through hole (302). The unsealing component (2) is slidably connected in the connector (3). The unsealing component (2) is used to open the sealing sheet (11) so that the first through hole (101) and the third through hole (302) form a passage. A drive component (4) is used to control the unsealing component (2) so that the unsealing component (2) performs the opening of the seal (11).

2. The valveless high-pressure constant low-pressure release power source as described in claim 1, characterized in that, The driving component (4) is a power drug (41), which is installed in the power cavity (301). A lead wire is fixedly connected to the power drug (41), and the end of the lead wire away from the power drug (41) passes through the connector (3).

3. The valveless high-pressure constant low-pressure release power source as described in claim 2, characterized in that, The unsealing assembly (2) includes a piston seat (21) and a plurality of first needle tubes (22). The piston seat (21) is slidably connected in the connector (3). The piston seat (21) has a second through hole (212) that communicates with the third through hole (302). The piston seat (21) has an integrally formed piston head (211) and a plurality of first wedge blocks (213). The piston head (211) is slidably connected in the power chamber (301). A second wedge block (221) that wedges with the first wedge block (213) is fixedly connected to the first needle tube (22).

4. The valveless high-pressure constant low-pressure release power source as described in claim 3, characterized in that, A first spring (222) is fixedly connected to the second wedge block (221). The first spring (222) is sleeved on the first needle tube (22). The end of the first spring (222) away from the second wedge block (221) is fixedly connected to the gas storage bottle (1).

5. A valveless high-pressure constant low-pressure release power source as described in claim 3, characterized in that, The lengths and apertures of the multiple first needle tubes (22) are different from each other.

6. A valveless high-pressure constant low-pressure release power source as described in claim 2, characterized in that, The unsealing assembly (2) includes a push rod (23), which is slidably connected in the power chamber (301). A pull plate (231) is integrally formed on the push rod (23), and the sealing plate (11) is fixedly connected to the pull plate (231).

7. A valveless high-pressure constant low-pressure release power source as described in claim 6, characterized in that, The first through hole (101) is a different diameter hole, and the diameter of the first through hole (101) is configured to gradually increase from the end near the pull plate (231) to the end away from the pull plate (231).

8. A valveless high-pressure constant low-pressure release power source as described in claim 6, characterized in that, The first through hole (101) is an oblong hole or a rectangular hole.

9. A valveless high-pressure constant low-pressure release power source as described in claim 1, characterized in that, The unsealing component (2) includes: A fixing ring (24) is coaxially corresponding to the third through hole (302) and fixedly installed in the power cavity (301); The second needle tube (27) is slidably connected inside the power chamber (301); Positioning beads (26) are installed on the second needle tube (27), and the heights of the multiple positioning beads (26) are different; The second spring (25) has one end fixedly connected to the fixed ring (24), and the other end of the second spring (25) away from the fixed ring (24) is fixedly connected to the second needle tube (27).

10. A valveless high-pressure constant low-pressure release power source as described in claim 9, characterized in that, The drive assembly (4) includes a slider (42) which is slidably connected to the gas storage cylinder (1). The slider (42) has a release cavity (421) that matches the locking bead (26).

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