Explosion-proof device and water outlet device applying same

Abstract

The invention discloses an explosion-proof device and a water outlet device applying the explosion-proof device.The explosion-proof device is characterized in that a cavity is formed in a shell, and the cavity is provided with a water inlet end and a water outlet end; the water passing piece is mounted in the cavity and is used for communicating the water inlet end with the water outlet end; the elastic assembly is elastically and movably mounted on the water passing piece, and the elastic assembly is configured to move between a first position for closing the water passing piece and a second position for opening the water passing piece relative to the water passing piece under the change of the water pressure of the water inlet end; the whole structure is simple, protection is automatically started, automatic reset is achieved after water pressure is reduced, protection on the water outlet device is efficient and remarkable, universality is high, and the surrounding environment is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of water-using equipment, in particular to an explosion-proof device and a water outlet device using the same. Background Art

[0002] Most of the existing shower faucets' top spray heads are plastic, and they all have a certain upper pressure limit. This can occur when impurities accumulate in the water during use, causing some of the water outlets to become clogged, or when scale forms on the nozzles after prolonged use, causing clogging. This is especially true for large-area shower heads. Clogged water outlets reduce drainage, which in turn increases the internal pressure of the shower head, making it prone to rupture and fall, potentially injuring the user. Alternatively, the water pressure in the waterway may occasionally fluctuate greatly, and the waterway is not equipped with a proper pressure-limiting valve. The sudden high pressure can cause high-pressure damage to the terminal water-using equipment. Some shower head heads are equipped with a pressure relief device. When the shower head becomes clogged, the pressure relief device drains and releases water. However, due to structural limitations, the device can only be used for a specific purpose, and its versatility is poor. During pressure relief, water is discharged through the side. Since the top spray is installed relatively high, the depressurized water flow may spray beyond the shower area and onto electrical appliances such as bathroom sockets, posing a safety hazard. Summary of the Invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the present invention provides an explosion-proof device.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] The present invention also provides a water outlet device having the above explosion-proof device.

[0006] An explosion-proof device according to a first embodiment of the present invention includes:

[0007] A shell, wherein a cavity is provided inside the shell, and the cavity has a water inlet end and a water outlet end;

[0008] A water passage member, the water passage member being installed in the cavity and being used to connect the water inlet end and the water outlet end;

[0009] An elastic component is elastically and movably mounted on the water flow member, and the elastic component is configured to move between a first position and a second position relative to the water flow member in response to a change in water pressure at the water inlet end; wherein,

[0010] When the water pressure at the water inlet becomes relatively large, the elastic component moves toward the first position under the action of the water pressure, and reduces the water flow rate of the water flow part;

[0011] When the water pressure at the water inlet becomes relatively smaller, the elastic component elastically returns to the second position and increases the water flow rate of the water flow member.

[0012] The explosion-proof device according to the embodiment of the present invention has at least the following beneficial effects: simple structure, automatic start-up protection, automatic reset after water pressure drops, efficient and significant protection of the water outlet device, high compatibility, and no impact on the surrounding environment.

[0013] According to some embodiments of the present invention, the water flow part includes an outer cylinder part and an inner cylinder part, the outer cylinder part is arranged around the outside of the inner cylinder part, and a water flow channel is formed between the outer cylinder part and the inner cylinder part. The outer cylinder part is fixed in the installation cavity, and the water flow channel is used to connect the water inlet end and the water outlet end. The elastic component can be elastically movably installed on the inner cylinder part. When the elastic component moves to the first position, the water flow cross-sectional area of ​​the water flow channel is the smallest. When the elastic component moves to the second position, the water flow cross-sectional area of ​​the water flow channel becomes larger.

[0014] According to some embodiments of the present invention, the elastic component includes a plug and an elastic component, the plug includes a plug head and a plug rod, the plug rod is passed through the inner cylinder, the elastic component is installed in the inner cylinder, the elastic component applies an elastic force to the plug rod to move it toward the water inlet end, the plug head is located between the water inlet end and the water passage, and when the elastic component moves to the first position, the plug head abuts against the end of the inner cylinder and blocks the end portion of the water passage.

[0015] According to some embodiments of the present invention, the interior of the inner cylinder portion is hollow and open toward one end of the water inlet end, a first air cavity is defined between the plug rod portion and the inner wall of the inner cylinder portion, a second air cavity is defined between part of the outer wall of the outer cylinder portion and the inner wall of the outer shell, a first air hole is provided on the inner cylinder portion, the first air hole connects the first air cavity and the second air cavity, and a second air hole is provided on the outer shell, the second air hole connects the second air cavity to the outside of the outer shell.

[0016] According to some embodiments of the present invention, a first sealing ring is sleeved on the plug rod portion, and the first sealing ring abuts against the inner wall of the inner tube portion.

[0017] According to some embodiments of the present invention, the interior of the outer cylinder portion includes a first inner cavity, a second inner cavity and a third inner cavity distributed in sequence from the water inlet end to the water outlet end, the inner diameter of the first inner cavity is larger than the inner diameter of the third inner cavity, the inner diameter of the second inner cavity gradually decreases from the first inner cavity to the third inner cavity, the inner cylinder portion is arranged in the third inner cavity, the water passage is defined between the outer wall of the inner cylinder portion and the cavity wall of the third inner cavity, and the outer diameter of the plug head portion is smaller than the inner diameter of the third inner cavity.

[0018] According to some embodiments of the present invention, the inner wall of the water inlet end is provided with an internal thread, and the outer wall of the water outlet end is provided with an external thread.

[0019] According to some embodiments of the present invention, a step is provided on the inner wall of the outer shell, and the end of the water-flowing part close to the water outlet is overlapped on the step. A hollow locking part is also installed in the outer shell, and the locking part is threadedly connected to the internal thread. The locking part abuts against the water-flowing part and presses the water-flowing part downward toward the step.

[0020] According to some embodiments of the present invention, the locking part includes a first plugging part and a second plugging part, the first plugging part is threadedly connected to the internal thread, the second plugging part is inserted into the water flow part, and a second sealing ring is sleeved on the second plugging part, and the second sealing ring abuts against the inner wall of the water flow part.

[0021] The water outlet device according to the second embodiment of the present invention includes an explosion-proof device.

[0022] The water outlet device according to the embodiment of the present invention has at least the following beneficial effects: high versatility, simple and convenient use, and high safety.

[0023] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0025] Figure 1 It is a schematic diagram of the structural decomposition of the explosion-proof device;

[0026] Figure 2 is a cross-sectional view of the housing;

[0027] Figure 3 It is a structural diagram of the water passing parts;

[0028] Figure 4 It is a cross-sectional view of the water-passing part;

[0029] Figure 5 1. It is a schematic diagram of the explosion-proof device in the first position.

[0030] Figure 6 1. It is a schematic diagram of the explosion-proof device in the second position.

[0031] Figure 7 It is a structural diagram of the water outlet device.

[0032] Figure numerals: outer shell 100; cavity 110; water inlet end 120; internal thread 121; water outlet end 130; external thread 131; second air hole 140; step 150; water flow part 200; outer cylinder 210; first inner cavity 211; second inner cavity 212; third inner cavity 213; inner cylinder 220; first air hole 221; water flow channel 230; elastic component 300; plug 310; plug head 311; plug rod 312; elastic member 320; first air cavity 401; second air cavity 402; first sealing ring 501; second sealing ring 502; third sealing ring 503; locking member 600; first plugging part 610; second plugging part 620; shower head 710; water supply pipe 720. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0034] The present invention relates to an explosion-proof device, comprising a housing 100 , a water flow member 200 and an elastic component 300 .

[0035] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the housing 100 can be configured in, but is not limited to, a cylindrical shape. The interior of the housing 100 is hollow, forming a cavity 110. The cavity 110 is open at both ends, forming a water inlet 120 and a water outlet 130, respectively. A water passage 200 is mounted within the cavity 110, intercepting the cavity 110 and providing communication between the water inlet 120 and the water outlet 130. An elastic assembly 300 is mounted on the water passage 200 and is elastically movable relative to the water passage 200. The elastic assembly 300 elastically moves primarily in response to changes in water pressure at the water inlet 120. The position in which the elastic assembly 300 closes the water passage 200 is defined as a first position. In the first position, the amount of water flowing between the water inlet 120 and the water outlet 130 through the water passage 200 is minimized, while maintaining communication between the water inlet 120 and the water outlet 130. The other position after the elastic component 300 leaves the first position is defined as the second position. When in the second position, the water flow of the water flow part 200 increases, and normal water flow is carried out between the water inlet end 120 and the water outlet end 130 through the water flow part 200. In actual use, the explosion-proof device is applied to the water outlet device. The water outlet device can be a shower head, a nozzle, etc. Figure 7As shown, the water outlet device is a shower head for example. The water outlet device includes a shower head 710 and a water supply pipe 720. The water supply pipe 720 can be connected to a water heater or a tap water pipe. The water inlet end 120 of the explosion-proof device is connected to the water supply pipe 720, and the water outlet end 130 is connected to the shower head 710. The water supply pipe 720 and the shower head 710 are connected through the explosion-proof device. Figure 6 As shown, when the elastic assembly 300 is not subject to water pressure or the water pressure at the water inlet end 120 is relatively low, the elastic assembly 300 remains in the second position. The water supply pipe 720 is opened, and water is delivered from the water supply pipe 720 to the shower head 710 through the water inlet end 120, the water passage 200, and the water outlet end 130. When the shower head 710 is functioning normally, the water from the water supply pipe 720 flows through the explosion-proof device to supply the shower head 710 normally. The water pressure exerted on the elastic assembly 300 through the water inlet end 120 is insufficient to move the elastic assembly 300 to the first position. At this time, the water pressure is relatively low, and the elastic assembly 300 remains in the second position. For example, if the safety bearing pressure of the shower head 710 is set to 0.5 MPa, then the elastic force of the elastic component 300 is set to cause elastic movement when it is subjected to a water pressure slightly less than 0.5 MPa at the water inlet end 120. In this case, a water pressure less than the safety bearing pressure of the shower head 710 is considered a relatively low water pressure, and a water pressure greater than the safety bearing pressure of the shower head 710 is considered a relatively high water pressure. When some of the water outlet holes of the shower head 710 are blocked and cannot discharge water normally, or the water pressure at the water supply pipe 720 increases abnormally, the water pressure acting on the elastic component 300 at the water inlet end 120 increases, and the water pressure exceeds the elastic force of the elastic component 300. Figure 5As shown, the elastic assembly 300 moves from the second position to the first position, rapidly reducing the amount of water flowing through the water passage 200. When the elastic assembly 300 reaches the first position, the amount of water flowing through the water passage 200 reaches its minimum. For example, after the elastic assembly 300 moves from the second position to the first position, the amount of water flowing through the water passage 200 from the water inlet 120 to the water outlet 130 is reduced by 96% to 99%. The water supply pipe 720 can continue to supply water to the shower head 710 through the explosion-proof device, but the water supply is now extremely low, thereby reducing the water pressure in the shower head 710. Water within shower head 710 will slowly drain out through unobstructed or partially blocked outlets. The amount of water entering shower head 710 through water passage 200 is less than the amount of water discharged from shower head 710. This gradually releases water and relieves pressure, preventing damage to shower head 710 caused by excessive water pressure. This, in turn, prevents the shower head 710 from exploding due to high pressure, potentially causing injury to the user. When water supply pipe 720 is turned off, the water pressure exerted on elastic assembly 300 by water inlet 120 gradually decreases, causing elastic assembly 300 to elastically return from its first position to its second position. The user can then inspect or replace shower head 710. Water does not escape the explosion-proof device and is sprayed directly onto surrounding circuits, preventing the risk of water shorting. The explosion-proof device has a simple structure, automatically starts protection, and automatically resets after the water pressure drops. It provides efficient and significant protection for the water outlet device, has high compatibility, and does not affect the surrounding environment.

[0036] In one embodiment, Figure 3 、 Figure 4 and Figure 5As shown, the water passage member 200 includes an outer cylinder portion 210 and an inner cylinder portion 220. The outer cylinder portion 210 can be cylindrical, with the inner cylinder portion 220 positioned within the outer cylinder portion 210. The outer cylinder portion 210 surrounds the inner cylinder portion 220, and a water passage 230 is formed between the inner wall of the outer cylinder portion 210 and the outer wall of the inner cylinder. The outer cylinder portion 210 and the inner cylinder portion 220 can be connected by connecting ribs and integrally formed. The outer cylinder portion 210 is fixed in the mounting cavity. A third sealing ring 503 can be mounted on the outer wall of the outer cylinder portion 210, abutting the inner wall of the outer shell 100 to prevent water leakage between the outer shell 100 and the outer cylinder portion 210. Alternatively, the seal can be sealed by other means, such as gluing. The water passage 230 connects the water inlet 120 and the water outlet 130, allowing water to flow between the water inlet 120 and the water passage. One end of the water passage 230 faces the water inlet 120, and the other end faces the water outlet 130. The elastic assembly 300 is resiliently mounted on the inner cylinder 220. The elastic assembly 300 can be configured to resiliently move toward the water inlet 120. When the water pressure at the water inlet 120 is relatively low, the elastic assembly 300 moves toward the second position, moving away from the water passage 230. At this point, the water passage 230 remains open, with the water flow cross-sectional area of ​​the water passage 230 maximized, allowing water to flow normally through the water inlet 120, the water passage 230, and the water outlet 130. When the water pressure at the water inlet 120 increases to a level greater than the elastic force causing the elastic assembly 300 to elastically move, the elastic assembly 300 moves from the second position to the first position. The elastic assembly 300 moves to one end of the water passage 230 and largely blocks it. At this point, the water flow cross-sectional area at the end of the water passage 230 reaches its minimum, allowing water from the water inlet 120 to flow through the water passage 230 to the water outlet 130 with minimal flow. For example, when the elastic assembly 300 is in the second position, the maximum water flow cross-sectional area at the end of the water passage 230 is 62 mm². When the elastic assembly 300 moves to the first position, blocking the end of the water passage 230, the water flow cross-sectional area at the end of the water passage 230 is reduced to 1.8 mm².

[0037] Based on the above embodiments, Figure 1 、 Figure 5 and Figure 6As shown, the elastic component 300 includes a plug 310 and an elastic member 320. The plug 310 includes a plug head 311 and a plug rod 312. The plug rod 312 is inserted into the inner cylinder 220 and can slide along the inner cylinder 220. The elastic member 320 is installed in the inner cylinder 220. The elastic member 320 can be a spring or the like. One end of the elastic member 320 abuts against the inner wall of the inner cylinder 220, and the other end abuts against the plug rod 312. The elastic member 320 applies an elastic force to the plug rod 312, and the elastic force causes the plug rod 312 to move toward the water inlet end 120. The plug head 311 is located outside the inner cylinder 220, and the plug head 311 is located between the water inlet end 120 and the water passage 230. The water pressure of the water inlet end 120 acts on the plug head 311. When the water pressure applied by the water inlet end 120 to the plug head 311 is less than the elastic force of the elastic member 320, the elastic member 320 pushes the plug 310 to move to and maintain the second position. When the water pressure at the water inlet end 120 gradually increases and becomes greater than the elastic force of the elastic member 320, the water pressure pushes the plug 310 to move to the first position, the plug rod 312 retracts into the interior of the inner cylinder 220, and the plug head 311 moves toward the end of the water passage 230, toward the water inlet end 120. When the plug 310 moves to the first position, the plug head 311 partially blocks the end of the water passage 230, thereby minimizing the water flow cross-sectional area at the end of the water passage 230.

[0038] The inner cylinder 220 is hollow, with one end facing the water inlet 120 open and the end facing the water outlet 130 closed. The plug rod 312 is inserted into the inner cylinder 220 from the open end, defining a first air cavity 401 between the plug rod 312 and the inner wall of the inner cylinder 220. A second air cavity 402 is formed between a portion of the outer wall of the outer cylinder 210 and the interior of the outer shell 100. Alternatively, a portion of the outer wall of the outer cylinder 210 may be recessed inward, forming the second air cavity 402 between the recessed portion and the inner wall of the outer shell 100. A first air hole 221 is defined in the inner cylinder 220. The first air hole 221 connects the first air cavity 401 with the second air cavity 402. A second air hole 140 is defined in the outer shell 100, connecting the second air cavity 402 to the exterior of the outer shell 100. The first air cavity 401 expands and contracts as the plug rod 312 moves relative to the inner tube 220. The first air cavity 401 communicates with the outside atmosphere through the first air hole 221, the second air cavity 402, and the second air hole 140, preventing the plug rod 312 from sliding smoothly relative to the inner tube 220 due to pressure buildup in the first air cavity 401. A first sealing ring 501 is sleeved on the plug rod 312, abutting the inner wall of the inner tube 220 to prevent water from flowing into the first air cavity 401 and causing leakage.

[0039] Further, such as Figure 3 、 Figure 4 and Figure 5 As shown, the interior of the outer cylinder 210 includes a first inner cavity 211, a second inner cavity 212 and a third inner cavity 213 distributed in sequence from the water inlet end 120 to the water outlet end 130. The first inner cavity 211, the second inner cavity 212 and the third inner cavity 213 are connected in sequence. The first inner cavity 211 can be set as a cavity with equal diameters at all locations, and the third inner cavity 213 can be set as a cavity with equal diameters at all locations. The inner diameter of the first inner cavity 211 is greater than the inner diameter of the third inner cavity 213. The second inner cavity 212 is set as a conical cavity, and the inner diameter of the second inner cavity 212 gradually decreases from the first inner cavity 211 to the third inner cavity 213. The maximum inner diameter of the second inner cavity 212 is the same as the inner diameter of the first inner cavity 211, and the minimum inner diameter of the second inner cavity 212 is the same as the inner diameter of the third inner cavity 213. The inner cylinder 220 is disposed in the third inner cavity 213, and the outer wall of the inner cylinder 220 and the cavity wall of the third inner cavity 213 define the water passage 230. The outer diameter of the plug head 311 is smaller than the inner diameter of the third inner cavity 213, and there is a gap between the side wall of the plug head 311 and the cavity wall of the third cavity 213. Figure 6 As shown, when the plug head 311 is in the second position, the plug head 311 is located in the first inner cavity 211, and water from the water inlet end 120 flows into the water passage 230 along the first inner cavity 211 and the second inner cavity 212. As the plug head 311 gradually moves from the second position to the first position, the plug head 311 passes through the second inner cavity 212, and the gap between the cavity wall of the second inner cavity 212 and the circumferential side wall of the plug head 311 gradually decreases. The amount of water transported from the water inlet end 120 to the water passage gradually decreases until the plug head 311 moves into the third inner cavity 213, at which point the water flows through the gap between the plug head 311 and the third inner cavity 213. At this point, the water flow cross-sectional area of ​​the water passage 230 is at its minimum.

[0040] In one embodiment, Figure 2 and Figure 5 As shown, the inner wall of the water inlet end 120 is provided with an internal thread 121, and the outer wall of the water outlet end 130 is provided with an external thread 131. The water inlet end 120 is threadedly connected to the water supply pipe 720 via the internal thread 121, and the water outlet end 130 is threadedly connected to the shower head 710 via the external thread 131, thereby quickly connecting the explosion-proof device between the water supply pipe 720 and the shower head 710.

[0041] Based on the above embodiment, a step 150 is provided on the inner wall of the housing 100. The end of the water passage member 200 near the water outlet 130 overlaps the step 150. A locking member 600 is also installed in the housing 100. The locking member 600 is hollow and annular in shape. The locking member 600 is screwed into the housing 100 through the water inlet and is threadedly connected to the internal thread 121. The locking member 600 abuts the water passage member 200 and presses the water passage member 200 downward toward the step 150, thereby clamping and securing the water passage member 200 between the locking member 600 and the step 150, thereby completing the installation of the water passage member 200. Furthermore, by setting the inner diameter of the locking member 600 to be smaller than the outer diameter of the plug, the locking member 600 can limit the travel of the plug head 311 toward the water inlet 120, thereby defining the second position limit.

[0042] Based on the above embodiments, Figure 1 and Figure 5 As shown, the locking member 600 includes a first plugging portion 610 and a second plugging portion 620. The first plugging portion 610 and the second plugging portion 620 can be arranged in a stepped shape. The outer diameter of the first plugging portion 610 is larger than the outer diameter of the second plugging portion 620. The first plugging portion 610 is threadedly connected to the internal thread 121, and the second plugging portion 620 is inserted into the water flow member 200. A second sealing ring 502 is sleeved on the second plugging portion 620, and the second sealing ring 502 abuts against the inner wall of the water flow member 200. The sealing effect of the second sealing ring 502 prevents water at the water inlet end 120 from flowing into the gap between the water flow member 200 and the housing 100.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] Throughout this specification, references to "some specific embodiments" and the like indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An explosion-proof device, characterized in that: include: A housing (100), wherein a cavity (110) is provided inside the housing (100), and the cavity (110) has a water inlet end (120) and a water outlet end (130); a water passage member (200), the water passage member (200) being installed in the cavity (110), the water passage member (200) being used to connect the water inlet end (120) and the water outlet end (130); An elastic component (300) is elastically movably mounted on the water flow member (200), and the elastic component (300) is configured to move between a first position and a second position relative to the water flow member (200) in response to changes in water pressure at the water inlet end (120); wherein, When the water pressure at the water inlet end (120) becomes relatively large, the elastic component (300) moves toward the first position under the action of the water pressure, and reduces the water flow rate of the water flow component (200); When the water pressure at the water inlet end (120) becomes relatively smaller, the elastic component (300) elastically resets and moves toward the second position, thereby increasing the water flow rate of the water flow component (200).

2. The explosion-proof device according to claim 1, characterized in that: The water flow member (200) comprises an outer cylinder portion (210) and an inner cylinder portion (220), wherein the outer cylinder portion (210) is arranged around the outside of the inner cylinder portion (220), and a water flow channel (230) is formed between the outer cylinder portion (210) and the inner cylinder portion (220). The outer cylinder portion (210) is fixed in the installation cavity, and the water flow channel (230) is used to connect the water inlet end (120) and the water outlet end (130). The elastic component (300) is elastically movably mounted on the inner cylinder portion (220). When the elastic component (300) moves to the first position, the water flow cross-sectional area of ​​the water flow channel (230) is minimized, and when the elastic component (300) moves to the second position, the water flow cross-sectional area of ​​the water flow channel (230) increases.

3. The explosion-proof device according to claim 2, characterized in that: The elastic component (300) comprises a plug (310) and an elastic component (320), wherein the plug (310) comprises a plug head portion (311) and a plug rod portion (312), wherein the plug rod portion (312) is passed through the inner cylinder portion (220), and the elastic component (320) is installed in the inner cylinder portion (220). The elastic component (320) applies an elastic force to the plug rod portion (312) to move the plug rod portion (312) toward the water inlet end (120), and the plug head portion (311) is located between the water inlet end (120) and the water passage (230). When the elastic component (300) moves to the first position, the plug head portion (311) abuts against the end portion of the inner cylinder portion (220) and blocks the end portion of the water passage (230).

4. The explosion-proof device according to claim 3, characterized in that: The interior of the inner cylinder (220) is hollow and opens toward one end of the water inlet end (120); a first air cavity (401) is defined between the plug rod portion (312) and the inner wall of the inner cylinder (220); a second air cavity (402) is defined between a portion of the outer wall of the outer cylinder (210) and the inner wall of the outer shell (100); a first air hole (221) is provided on the inner cylinder (220); the first air hole (221) connects the first air cavity (401) and the second air cavity (402); a second air hole (140) is provided on the outer shell (100); the second air hole (140) connects the second air cavity (402) to the outside of the outer shell (100).

5. The explosion-proof device according to claim 4, characterized in that: A first sealing ring (501) is sleeved on the plug rod portion (312), and the first sealing ring (501) abuts against the inner wall of the inner cylinder portion (220).

6. The explosion-proof device according to claim 3 or 4, characterized in that: The interior of the outer cylinder (210) comprises a first inner cavity (211), a second inner cavity (212), and a third inner cavity (213) which are sequentially distributed from the water inlet end (120) to the water outlet end (130); the inner diameter of the first inner cavity (211) is larger than the inner diameter of the third inner cavity (213); the inner diameter of the second inner cavity (212) gradually decreases from the first inner cavity (211) to the third inner cavity (213); the inner cylinder (220) is arranged in the third inner cavity (213); the water passage (230) is defined between the outer wall of the inner cylinder (220) and the cavity wall of the third inner cavity (213); and the outer diameter of the plug head (311) is smaller than the inner diameter of the third inner cavity (213).

7. The explosion-proof device according to any one of claims 1 to 4, characterized in that: The inner wall of the water inlet end (120) is provided with an internal thread (121), and the outer wall of the water outlet end (130) is provided with an external thread (131).

8. The explosion-proof device according to claim 7, characterized in that: A step (150) is provided on the inner wall of the housing (100), and the end of the water-passing member (200) close to the water outlet (130) overlaps the step (150). A hollow locking member (600) is also installed in the housing (100), and the locking member (600) is threadedly connected to the internal thread (121). The locking member (600) abuts against the water-passing member (200) and presses the water-passing member (200) downward toward the step (150).

9. The explosion-proof device according to claim 8, characterized in that: The locking member (600) comprises a first plugging portion (610) and a second plugging portion (620), wherein the first plugging portion (610) is threadedly connected to the internal thread (121), and the second plugging portion (620) is inserted into the water passage member (200). A second sealing ring (502) is sleeved on the second plugging portion (620), and the second sealing ring (502) abuts against the inner wall of the water passage member (200).

10. A water outlet device, characterized in that: The explosion-proof device comprises the explosion-proof device according to any one of claims 1 to 9.

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