Periscopic slit type energy storage battery box nozzle

Abstract

The utility model relates to the technical field of fire-fighting sprayers, in particular to a periscopic slit type energy storage battery box sprayer which comprises a sprayer body, a liquid passing channel is arranged in the sprayer body in a penetrating mode, a one-way valve element and an elastic piece are arranged in the liquid passing channel, and the elastic piece exerts force on the one-way valve element so that the one-way valve element can block and separate the liquid passing channel. After the fire-fighting agent is guided into the liquid passing channel, the elastic force of the elastic piece can be overcome to push the one-way valve core to move so as to guide into the liquid passing channel; the nozzle is characterized by further comprising a pipe connecting seat fixed to the nozzle body, and the pipe connecting seat is provided with a pipe connecting through hole communicated with the liquid passing channel; the pipe connecting base is fixedly connected with a hard extension pipe communicating with the pipe connecting through hole, the extension pipe is bent, a nozzle is arranged at the end, away from the pipe connecting base, of the extension pipe, and the extension pipe can be fixed after rotating by a preset angle relative to the pipe connecting base. Compared with the prior art, when the fire extinguishing device is installed in the battery box for use, fire extinguishing agents can be sprayed at fixed points according to gaps of the battery box, and more effective battery box covering spraying fire extinguishing can be achieved more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of fire sprinklers, in particular to a periscope slit type energy storage battery box sprinkler. Background Art

[0002] In recent years, with the continuous development of my country's economy, the continuous progress of society, and the rapid development of the country's new energy industry, new energy power battery vehicles, energy storage power stations, charging piles, etc. based on lithium batteries are increasingly changing people's lives.

[0003] Currently, new energy lithium batteries are a growing trend in society, serving as a supplement and alternative to traditional energy sources. my country's government strongly supports new energy electric vehicles and energy storage power stations for peak load shaving and valley filling. The industry is rapidly developing, with an increasingly wide range of applications and enormous installed capacity. However, with the promotion and application of these technologies, safety issues surrounding lithium battery packs, the cornerstone of the new energy industry, are increasingly being exposed.

[0004] As the cells in a battery box are constantly used and repeatedly charged and discharged, their electrical properties degrade. Overcharge or over-discharge can occur during the charge and discharge process, leading to thermal runaway and fires throughout the battery box, jeopardizing both production and personal safety. Consequently, an increasing number of battery boxes are being equipped with lithium-ion fire prevention and control devices during production and design to make them safer and more reliable. Because the design of lithium-ion battery boxes takes actual application scenarios into account, strict requirements are placed on sealing, waterproofing, and weight. However, existing nozzles are unable to automatically release fire extinguishing agents in the event of a fire while also ensuring the sealing of the lithium battery under normal conditions.

[0005] Then, a Chinese patent document with publication number CN110292737A appeared, which disclosed a nozzle for fire fighting in a lithium battery box and a lithium battery with fire prevention function, wherein the nozzle includes a nozzle body, a nozzle core, an elastic member and a nozzle orifice plate, and the nozzle core is arranged in the first flow channel of the nozzle body through the elastic member. Under normal circumstances, the elastic member presses against the nozzle core when it is in the first deformation, so that the nozzle core is in sealing contact with the inner wall of the sealing section of the first flow channel, so that the interior of the battery box is in a sealed state, meeting the sealing requirements of the lithium battery. When a fire occurs in the lithium battery, the pressure generated when the fire extinguishing agent is released compresses the elastic member, and the nozzle core exits the sealing section of the first flow channel, the sealing effect fails, and the fire extinguishing agent can be smoothly transported to the nozzle orifice plate through the first flow channel, and the fire extinguishing agent is sprayed onto the battery box through the spray hole on the nozzle orifice plate, so as to achieve the effect of automatic fire extinguishing, avoid fire, and ensure the personal safety of users.

[0006] Later, the inventor of the present application developed a spray nozzle for a lithium battery box as disclosed in the Chinese patent document with the publication number CN220836282U. The nozzle comprises a nozzle body, a liquid passage is provided through the nozzle body, a one-way valve core and an elastic member are provided in the liquid passage, the elastic member applies force to the one-way valve core so that the one-way valve core blocks and blocks the liquid passage, and after the fire-fighting agent is introduced into the liquid passage, the elastic force of the elastic member can be overcome to push the one-way valve core to move and guide the liquid passage; the rear end of the nozzle body is provided with a connecting pipe portion for plugging in the fire-fighting agent supply connector, and the front end of the liquid passage is provided with a nozzle assembly. The plug-in connection method is more convenient for disassembly and maintenance than the existing threaded connection method. In addition, the nozzle has a compact structure and a high degree of integration, which can save space and effectively solve the installation problem of the product.

[0007] Existing nozzles are generally fixed to the wall of the energy storage battery box. When in use, the fire extinguishing agent is sprayed from the nozzle on the box wall toward the batteries inside the box. On the one hand, due to the limitation of the installation hole position of the battery box wall, the nozzle on the nozzle cannot be installed in the most ideal position, that is, toward or close to the flammable position; on the other hand, the batteries and electronic components are arranged in the energy storage box, and there are many gaps. The fire extinguishing agent has difficulty reaching the gaps of the nozzle with the water outlet positioned on the box wall. Summary of the Invention

[0008] In view of all or part of the above-mentioned technical problems in the prior art, the utility model provides a periscope slit type energy storage battery box nozzle.

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] Provided is a periscope slit type energy storage battery box nozzle, comprising a nozzle body, a liquid passage being provided through the nozzle body, a one-way valve core and an elastic member being provided in the liquid passage, the elastic member applying force to the one-way valve core so that the one-way valve core blocks and blocks the liquid passage, and after a fire-fighting agent is introduced into the liquid passage, the elastic force of the elastic member can be overcome to push the one-way valve core to move and thereby guide the liquid passage; the nozzle is characterized in that it also comprises a connecting pipe seat fixed to the nozzle body, the connecting pipe seat being provided with a connecting pipe through hole connected to the liquid passage; the connecting pipe seat is fixedly connected to a hard extension pipe connected to the connecting pipe through hole, the extension pipe being bent and a nozzle being provided at the end thereof away from the connecting pipe seat, and the extension pipe being capable of being rotated relative to the connecting pipe seat by a preset angle and then being fixed.

[0011] As a further optional solution, the water outlet of the nozzle is V-shaped.

[0012] As a further alternative, the extension tube is Z-shaped.

[0013] As a further optional solution, a conical locking protrusion is provided on the outer side of the end portion of the extension tube, the port of the connecting pipe through hole is a bell mouth, and the conical locking protrusion is embedded in the bell mouth.

[0014] As a further optional solution, the outer side of the pipe socket is threadedly connected with a locking nut, the extension pipe passes through the locking nut, and the locking nut is adjustable in tightness to press against the conical clamping protrusion.

[0015] As a further optional solution, the connecting pipe seat and the nozzle body are threadedly fixed to each other, a first step is provided on the inner wall of the liquid channel, and a second step is provided on the outer side of the connecting pipe seat. The first step and the second step cooperate with each other to control the extent to which the connecting pipe seat is screwed into the liquid channel, and a first sealing ring is provided between the first step and the second step.

[0016] As a further optional solution, the elastic member is a spring, one end of which rests against the connecting pipe seat and the other end against the one-way valve core. The end of the connecting pipe seat is provided with a first positioning groove for the elastic member to be embedded, and the end of the one-way valve core is provided with a second positioning groove for the elastic member to be embedded.

[0017] As a further optional solution, a first conical surface is provided on the outer side of the one-way valve core, and a second conical surface is provided at the end of the liquid channel. The first conical surface and the second conical surface cooperate with each other and a second sealing ring is provided between them. The one-way valve core has a flow hole connected to the first conical surface.

[0018] As a further optional solution, the outer side of the nozzle body is integrally formed with a mounting boss, which is matched with a clamping plate via a bolt assembly, and the clamping plate has a clearance hole for the pipe seat to pass through; the mounting boss is integrally formed with a threaded column that is threaded to adapt to the bolt assembly.

[0019] As a further optional solution, the side surface of the mounting boss facing the clamping plate is concave to form a mounting groove, and the mounting groove is provided with a sealing gasket, and the thickness of the sealing gasket is greater than the depth of the mounting groove.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a periscope slit type energy storage battery box nozzle. Since a curved extension tube is provided and the extension tube can be rotated at a preset angle relative to the connecting pipe seat, when it is installed in the battery box for use, the fire extinguishing agent can be sprayed at a fixed point according to the gap of the battery box, making it easier to achieve more effective battery box coverage and spray fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a periscope slit type energy storage battery box nozzle in an embodiment.

[0023] Figure 2 It is a cross-sectional view of a periscope slit type energy storage battery box nozzle in an embodiment.

[0024] Figure 3 This is an exploded view of a periscope slit type energy storage battery box nozzle in an embodiment.

[0025] Reference numerals:

[0026] The nozzle body 1, the liquid passage 11, the first step 12, the second tapered surface 13, the mounting boss 14, the threaded column 141, and the mounting groove 142;

[0027] One-way valve core 2, second positioning groove 21, first cone surface 22, flow hole 23;

[0028] elastic member 30;

[0029] The pipe seat 3, the pipe through hole 31, the second step 32, and the first positioning groove 33;

[0030] Extension tube 4, tapered clamping protrusion 41;

[0031] Nozzle 5, locking nut 6, first sealing ring 7, second sealing ring 8, clamping plate 9, clearance hole 91, sealing gasket 10. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] A periscope slit type energy storage battery box nozzle of this embodiment, such as Figures 1 to 3 As shown, it includes a nozzle body 1, in which a liquid passage 11 is provided, and a one-way valve core 2 and an elastic member 30 are provided in the liquid passage 11. The elastic member 30 applies force to the one-way valve core 2 so that the one-way valve core 2 blocks and blocks the liquid passage 11. After the fire-fighting agent is introduced into the liquid passage 11, it can overcome the elastic force of the elastic member 30 and push the one-way valve core 2 to move and then guide the liquid passage 11. As a major improvement, the energy storage battery box nozzle also includes a pipe socket 3 fixed to the nozzle body 1, and the pipe socket 3 is provided with a pipe through-hole 31 connected to the liquid passage 11. The pipe socket 3 is fixedly connected to a hard extension tube 4 connected to the pipe through-hole 31. The extension tube 4 is bent and a nozzle 5 is provided at its end away from the pipe socket 3. The extension tube 4 can be rotated relative to the pipe socket 3 at a preset angle and then fixed.

[0034] Furthermore, the one-way valve core 2 acts as a seal to prevent leakage. The battery box contains many toxic gases, such as carbon monoxide, VOCs, and hydrogen (a flammable, non-toxic gas). The front inlet of the one-way valve core 2 acts as a leak-proof valve, with an opening pressure ranging from 0.02 to 0.15 MPa. The back inlet also acts as a check valve, preventing toxic gases from leaking from the nozzle into the outside environment.

[0035] Specifically, the water outlet of the nozzle 5 is V-shaped, the channel inside the nozzle 5 is a circular hole, and a V-groove is radially provided through the end portion.

[0036] Specifically, the extension tube 4 is Z-shaped, with an arc-shaped tube transition at the bend.

[0037] Specifically, a conical retaining protrusion 41 is provided on the outer side of the end of the extension tube 4. The end of the pipe through-hole 31 is a bell-mouthed port, into which the conical retaining protrusion 41 is embedded. A locking nut 6 is threadedly connected to the outer side of the pipe socket 3. The extension tube 4 passes through the locking nut 6, which is adjustable in tightness against the conical retaining protrusion 41. Pressing the conical retaining protrusion 41 into the bell-mouthed port restricts the axial insertion and removal or circumferential rotation of the extension tube 4.

[0038] Specifically, the pipe socket 3 and the nozzle body 1 are threadedly connected to each other. A first step 12 is provided on the inner wall of the liquid passage 11, and a second step 32 is provided on the outer side of the pipe socket 3. The first step 12 and the second step 32 cooperate to control the extent to which the pipe socket 3 is screwed into the liquid passage 11. A first sealing ring 7 is provided between the first step 12 and the second step 32. The elastic member 30 is a spring, one end of which abuts the pipe socket 3 and the other end abuts the one-way valve core 2. The end of the pipe socket 3 is provided with a first positioning groove 33 for the elastic member 30 to be inserted into, and the end of the one-way valve core 2 is provided with a second positioning groove 21 for the elastic member 30 to be inserted into.

[0039] Specifically, the outer side of the one-way valve core 2 is provided with a first tapered surface 22, and the end of the liquid passage 11 is provided with a second tapered surface 13. The first tapered surface 22 and the second tapered surface 13 cooperate with each other with a second sealing ring 8 disposed therebetween. The one-way valve core 2 has a flow hole 23 that connects to the first tapered surface 22. When the fire-fighting agent is introduced, the one-way valve core 2 is pushed inward, increasing the gap between the first tapered surface 22 and the second tapered surface 13, allowing the fire-fighting agent to enter through the flow hole 23.

[0040] Specifically, the nozzle body 1 has an integrally formed mounting boss 14 on its exterior. This boss 14 engages with a retaining plate 9 via a bolt assembly. The retaining plate 9 has a clearance hole 91 for the pipe socket 3 to pass through. The mounting boss 14 also has an integrally formed threaded post 141 that threads into the bolt assembly. The side of the mounting boss 14 facing the retaining plate 9 is recessed to form a mounting groove 142. This groove 142 houses a sealing gasket 10, the thickness of which is greater than the depth of the groove 142. The retaining plate 9 and the sealing gasket 10 together clamp the wall of the peripheral energy storage battery box, enabling installation of the entire nozzle.

[0041] In the description of the present invention, it is obvious that the embodiments described are only some embodiments of the present invention, rather than all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention as claimed, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0044] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to connections directly or indirectly through an intermediary, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A periscope slit type energy storage battery box nozzle, comprising a nozzle body (1), a liquid passage (11) penetratingly provided in the nozzle body (1), a one-way valve core (2) and an elastic member (30) provided in the liquid passage (11), the elastic member (30) exerting force on the one-way valve core (2) so that the one-way valve core (2) blocks and blocks the liquid passage (11), and after a fire-fighting agent is introduced into the liquid passage (11), the elastic force of the elastic member (30) is overcome to push the one-way valve core (2) to move and thereby guide the liquid passage (11); the characteristics of the invention are: The nozzle body (1) further comprises a pipe socket (3) fixed to the nozzle body (1), the pipe socket (3) being provided with a pipe through-hole (31) connected to the liquid passage (11); the pipe socket (3) being fixedly connected to a hard extension pipe (4) connected to the pipe through-hole (31), the extension pipe (4) being bent and having a nozzle (5) provided at its end away from the pipe socket (3), and the extension pipe (4) being capable of being rotated relative to the pipe socket (3) at a preset angle and then being fixed.

2. The periscope slit type energy storage battery box nozzle according to claim 1, characterized in that: The water outlet of the nozzle (5) is V-shaped.

3. The periscope slit type energy storage battery box nozzle according to claim 1, characterized in that: The extension tube (4) is Z-shaped.

4. The periscope slit type energy storage battery box nozzle according to claim 1, characterized in that: A conical cam (41) is provided on the outer side of the end of the extension tube (4), and the end of the connecting pipe through hole (31) is a bell mouth, in which the conical cam (41) is embedded.

5. The periscope slit type energy storage battery box nozzle according to claim 4, characterized in that: The outer side of the pipe seat (3) is threadedly connected with a locking nut (6), the extension pipe (4) passes through the locking nut (6), and the locking nut (6) presses against the conical clamping protrusion (41) in an adjustable manner.

6. The periscope slit type energy storage battery box nozzle according to claim 1, characterized in that: The connecting pipe seat (3) and the nozzle body (1) are mutually threaded and fixedly connected; a first step (12) is provided on the inner wall of the liquid passage (11); a second step (32) is provided on the outer side of the connecting pipe seat (3); the first step (12) and the second step (32) cooperate with each other to control the amplitude of the connecting pipe seat (3) being screwed into the liquid passage (11); a first sealing ring (7) is provided between the first step (12) and the second step (32).

7. The periscope slit type energy storage battery box nozzle according to claim 6, characterized in that: The elastic member (30) is a spring, one end of which abuts against the connecting pipe seat (3) and the other end abuts against the one-way valve core (2); the end of the connecting pipe seat (3) is provided with a first positioning groove (33) for the elastic member (30) to be embedded in, and the end of the one-way valve core (2) is provided with a second positioning groove (21) for the elastic member (30) to be embedded in.

8. The periscope slit type energy storage battery box nozzle according to claim 1, characterized in that: A first conical surface (22) is provided on the outer side of the one-way valve core (2), a second conical surface (13) is provided at the end of the liquid passage (11), the first conical surface (22) and the second conical surface (13) are matched with each other and a second sealing ring (8) is provided therebetween, and a flow hole (23) connected to the first conical surface (22) is opened in the one-way valve core (2).

9. The periscope slit type energy storage battery box nozzle according to claim 1, characterized in that: The outer side of the nozzle body (1) is integrally formed with a mounting boss (14), the mounting boss (14) is matched with a clamping plate (9) via a bolt assembly, and the clamping plate (9) is provided with a clearance hole (91) for the pipe seat (3) to pass through; the mounting boss (14) is integrally formed with a threaded column (141) whose thread is adapted to the bolt assembly.

10. The periscope slit type energy storage battery box nozzle according to claim 9, characterized in that: The side surface of the mounting boss (14) facing the clamping plate (9) is concave to form a mounting groove (142). The mounting groove (142) is provided with a sealing gasket (10). The thickness of the sealing gasket (10) is greater than the depth of the mounting groove (142).

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