Three-axis hinge and fire fighting device

Abstract

The utility model provides a three-axis hinge and a fire fighting device.The three-axis hinge is used for connecting a first structural part and a second structural part and specifically comprises a hinge base, a fixing part, a connecting part and a single joint, and the hinge base is used for being fixed to the first structural part; the double-fork joint comprises a fixing piece and a connecting piece which are connected with each other, and the fixing piece is used for being fixedly installed on a second structural piece. The two opposite ends of the single section are connected with the connecting piece and the hinge base respectively. The hinge seat is hinged to the single joint through a first hinge shaft, the single joint is hinged to the connecting piece through a second hinge shaft, the connecting piece is hinged to the fixing piece through a third hinge shaft, and the first hinge shaft, the second hinge shaft and the third hinge shaft are parallel to one another. According to the embodiment, the first structural part and the second structural part are hinged through the three-axis hinge, the rotating angle range of the second structural part relative to the first structural part can be enlarged, and meanwhile the relative position between the second structural part and the first structural part can be flexibly adjusted through the single joint.

Description

Technical Field

[0001] This disclosure belongs to the field of mechanical technology, specifically relating to a three-axis hinge and a fire-fighting device. Background Technology

[0002] Currently, dual-axis hinges are typically used to achieve the hinge connection between the first and second structural components. The second structural component can only rotate around the dual-axis hinge, and its range of motion relative to the first structural component is limited. In practical use, it is difficult to achieve precise control over the relative position of the first and second structural components. Utility Model Content

[0003] The purpose of this application is to provide a three-axis hinge and a fire-fighting device, which uses a three-axis hinge to achieve the hinge connection between the first structural member and the second structural member, thereby increasing the angle at which the second structural member can rotate relative to the first structural member, and allowing for flexible adjustment of the relative position between the second structural member and the first structural member.

[0004] This disclosure provides a three-axis hinge for connecting a first structural member and a second structural member, comprising:

[0005] A hinge seat, which is used to be fixedly installed on the first structural member;

[0006] The double-forked joint includes a fastener and a connector that are connected to each other, the fastener being used to fix it to the second structural member;

[0007] A single section, the opposite ends of which are respectively connected to the connector and the hinge seat;

[0008] The hinge base and the single section are hinged together by a first hinge axis, the single section and the connecting member are hinged together by a second hinge axis, and the connecting member and the fixing member are hinged together by a third hinge axis. The first hinge axis, the second hinge axis and the third hinge axis are parallel to each other.

[0009] In one exemplary embodiment of this disclosure, the hinge seat has a first groove on the side opposite to the first structural member; one end of the single section is disposed in the first groove, and the first hinge shaft passes through the first groove to realize the hinge connection between the hinge seat and the single section.

[0010] In one exemplary embodiment of this disclosure, the connector has a second groove on the side near the single section, the end of the single section away from the hinge seat is disposed in the second groove, and the second hinge shaft passes through the second groove to realize the hinge connection between the connector and the single section.

[0011] In an exemplary embodiment of this disclosure, the connector has a protrusion on the side near the fixing member, and the fixing member has a recess on the side away from the second structural member, with the protrusion disposed within the recess; the third hinge shaft passes through the recess and the protrusion located within the recess to achieve hinge connection between the connector and the fixing member.

[0012] This disclosure provides a fire-fighting device, including:

[0013] The housing includes a cover plate, a bottom plate, and side plates. The cover plate and the bottom plate are spaced apart. The side plates are connected to the cover plate and the bottom plate, and the side plates surround a portion of the side periphery of the bottom plate and the cover plate. The side plates are provided with an inlet and an outlet for the cooling medium to enter and exit the housing. The side of the housing not surrounded by the side plates forms an open opening.

[0014] A door panel is provided at the opening, and the orthographic projection of the door panel on the box body coincides with the opening; the door panel includes two sides, a fixed side and a movable side, the fixed side and the movable side are located on opposite sides of the door panel in the length direction, the fixed side is hinged to one side of the side panel, the door panel rotates about the fixed side as the central axis, and the movable side can be connected to the other side of the side panel;

[0015] The door panel and the housing are hinged together by a three-axis hinge as described in any one of the above.

[0016] In one exemplary embodiment of this disclosure, the fire-fighting device is provided with at least two of the three-axis hinges, and the two three-axis hinges are arranged at intervals in the extension direction of the fixed side.

[0017] The technical solutions provided in this disclosure have at least the following advantages:

[0018] This disclosure provides a three-axis hinge, which includes a hinge seat, a fixing member, a connecting member, and a single section. The hinge seat and the fixing seat are fixedly installed on a first structural member and a second structural member, respectively. The hinge seat is hinged to one end of the single section using a first hinge axis, the connecting member is hinged to the other end of the single section using a second hinge axis, and the fixing member is hinged to the side of the connecting member away from the single section using a third hinge axis. The first hinge axis, the second hinge axis, and the third hinge axis are parallel to each other, thereby allowing the second structural member to rotate relative to the first structural member.

[0019] Meanwhile, compared with the scheme of achieving the hinge between the first structural component and the second structural component through dual-axis linkage, the embodiments of this disclosure can also enable the three components of the fixing component, the connecting component, and the single section to rotate through the first hinge axis, the second hinge axis, and the third hinge axis. That is, the fixing component can rotate about the third hinge axis as the central axis, the connecting component can rotate about the second hinge axis as the central axis, and the single section can rotate about the first hinge axis as the central axis, so as to increase the range of angles that the second structural component can rotate relative to the first structural component.

[0020] Furthermore, the embodiments of this disclosure can also adjust the rotation angle of a single section to allow the second structural member to be stretched in a direction perpendicular to the first hinge axis. That is, in addition to being able to rotate around the three-axis hinge as the central axis, the second structural member can also be able to translate in a direction perpendicular to the first hinge axis using a single section, so as to flexibly adjust the distance between the second structural member and the first structural member.

[0021] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0024] Figure 1 A three-dimensional structural schematic diagram of a three-axis hinge in an embodiment of this disclosure is shown.

[0025] Figure 2 A three-dimensional structural schematic diagram of the fire-fighting device in an embodiment of this disclosure is shown.

[0026] Figure 3 A three-dimensional structural diagram of the door panel when it is opened is shown in an embodiment of this disclosure.

[0027] Figure 4 Another three-dimensional structural schematic diagram of the fire-fighting device in an embodiment of this disclosure is shown.

[0028] Figure 5 A side view of the fire-fighting device in an embodiment of this disclosure is shown.

[0029] Figure 6 A side view of the first seal in an embodiment of this disclosure is shown.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Three-axis hinge; 11. Hinge seat; 121. Connector; 122. Fixing component; 13. Single section; 14. First hinge axis; 15. Second hinge axis; 16. Third hinge axis; 2. Fire-fighting device; 21. Box body; 211. Bottom plate; 212. Side plate; 213. Cover plate; 22. Door panel; 23. Water inlet; 24. Water outlet; 25. First seal; 26. Second seal; Y, vertical direction. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0033] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0034] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0035] like Figure 1 As shown, this disclosure provides a three-axis hinge 1 for connecting a first structural member and a second structural member. Specifically, the three-axis hinge 1 may include: a hinge base 11, a double-fork joint, a single joint 13, and a first hinge axis 14, a second hinge axis 15, and a third hinge axis 16.

[0036] In this embodiment, the hinge seat 11 can be fixedly installed on the first structural member. The double-fork joint may include a fixing member 122 and a connecting member 121 connected to each other, and the fixing member 122 can be fixedly installed on the second structural member. The opposite ends of the single section 13 are respectively connected to the connecting member 121 and the hinge seat 11. The hinge seat 11 and the single section 13 are hingedly connected by a first hinge axis 14, the single section 13 and the connecting member 121 are hingedly connected by a second hinge axis 15, and the connecting member 121 and the fixing member 122 are hingedly connected by a third hinge axis 16. The first hinge axis 14, the second hinge axis 15 and the third hinge axis 16 are parallel to each other.

[0037] This embodiment of the present disclosure, by setting a three-axis hinge 1, achieves the hinge connection between the first structural member and the second structural member. Compared with the scheme of achieving the hinge connection between the first structural member and the second structural member by a two-axis hinge, this embodiment of the present disclosure can also enable the three components, namely the fixing member 122, the connecting member 121, and the single section 13, to rotate through the first hinge axis 14, the second hinge axis 15, and the third hinge axis 16. That is, the fixing member 122 can rotate about the third hinge axis 16 as the central axis, the connecting member 121 can rotate about the second hinge axis 15 as the central axis, and the single section 13 can rotate about the first hinge axis 14 as the central axis, thereby increasing the range of angles that the second structural member can rotate relative to the first structural member.

[0038] Furthermore, the embodiments of this disclosure can also adjust the rotation angle of the single section 13 so that the second structural member can be stretched in a direction perpendicular to the first hinge axis 14. That is, in addition to being able to rotate around the three-axis hinge 1 as the central axis, the second structural member can also be translated in a direction perpendicular to the first hinge axis 14 by using the single section 13, so as to adjust the relative position between the second structural member and the first structural member.

[0039] In some embodiments, the hinge seat 11 can be positioned vertically above or below the single section 13, with the orthographic projections of the hinge seat 11 and the single section 13 on the horizontal plane overlapping. The first hinge shaft 14 passes through the single section 13 and the hinge seat 11, and the orthographic projection of the first hinge shaft 14 on the horizontal plane lies within the orthographic projections of the hinge seat 11 and the single section 13 on the horizontal plane, thereby achieving the hinge connection between the single section 13 and the hinge seat 11. In this case, the first hinge shaft 14 is located on the side of the hinge seat 11 facing away from the first structural member.

[0040] It should be noted that the vertical direction Y in this disclosure is perpendicular to the horizontal plane.

[0041] However, this is not the only embodiment. In other embodiments, the hinge seat 11 may also be placed entirely on one side of the single section 13 in any direction other than the vertical Y direction. In this case, the orthographic projections of the hinge seat 11 and the single section 13 on the plane perpendicular to the other direction partially overlap. The first hinge shaft 14 is provided through the single section 13 and the hinge seat 11, and the orthographic projection of the first hinge shaft 14 on the plane perpendicular to the other direction is located within the orthographic projections of the hinge seat 11 and the single section 13 on the plane perpendicular to the other direction, so as to realize the hinge connection between the single section 13 and the hinge seat 11.

[0042] In some embodiments, the connector 121 may be placed vertically above or below the single section 13, and the orthographic projection of the connector 121 and the single section 13 on the horizontal plane may overlap. The second hinge shaft 15 is disposed through the single section 13 and the connector 121, and the orthographic projection of the second hinge shaft 15 on the horizontal plane is located within the orthographic projection of the connector 121 and the single section 13 on the horizontal plane, so as to realize the hinge connection between the single section 13 and the connector 121.

[0043] It should be noted that, in this embodiment of the present disclosure, the first hinge shaft 14 and the second hinge shaft 15 are located at opposite ends of the single section 13 in the direction perpendicular to the vertical Y.

[0044] However, this is not the only embodiment. In other embodiments, the connector 121 may also be placed entirely on one side of the single section 13 in any direction other than the vertical Y direction. In this case, the orthographic projection of the connector 121 and the single section 13 on the plane perpendicular to the other direction overlaps. The second hinge shaft 15 is provided through the single section 13 and the connector 121, and the orthographic projection of the second hinge shaft 15 on the plane perpendicular to the other direction is located within the orthographic projection of the connector 121 and the single section 13 on the plane perpendicular to the other direction, so as to realize the hinge connection between the single section 13 and the connector 121.

[0045] In some embodiments, the connector 121 can be positioned vertically above or below the fixing member 122, with the orthographic projections of the connector 121 and the fixing member 122 overlapping on the horizontal plane. A third hinge axis 16 passes through both the fixing member 122 and the connector 121, and its orthographic projection on the horizontal plane lies within the orthographic projections of the connector 121 and the fixing member 122 on the horizontal plane, thus achieving a hinge connection between the fixing member 122 and the connector 121. In this case, the second hinge axis 15 is located on the side of the connector 121 away from the fixing member 122, and the third hinge axis 16 is located on the side of the connector 121 away from the single section 13.

[0046] However, this is not the only embodiment. In other embodiments, the connector 121 may be placed entirely on one side of the fixing member 122 in any direction other than the vertical Y direction. In this case, the orthographic projections of the connector 121 and the fixing member 122 on the plane perpendicular to the other direction overlap. The third hinge axis 16 is provided through the fixing member 122 and the connector 121, and the orthographic projection of the third hinge axis 16 on the plane perpendicular to the other direction is located within the orthographic projections of the connector 121 and the fixing member 122 on the plane perpendicular to the other direction, so as to realize the hinge connection between the fixing member 122 and the connector 121.

[0047] In some embodiments, the hinge seat 11 has a first groove on the side opposite to the first structural member. One end of the single section 13 is disposed in the first groove, and the first hinge shaft 14 passes through the first groove to realize the hinge connection between the hinge seat 11 and the single section 13.

[0048] For example, in this embodiment of the present disclosure, the first groove may be located at the middle of the hinge seat 11 along the length of the first hinge shaft 14. The length of the first hinge shaft 14 may be parallel to the vertical direction Y. The first hinge shaft 14 passes sequentially through the top of the hinge seat 11, the single section 13 located in the first groove, and the bottom of the hinge seat 11 along its length to achieve the hinge connection between the hinge seat 11 and the single section 13.

[0049] It should be noted that the top and bottom of the hinge seat 11 refer to the opposite ends of the hinge seat 11 in the length direction of the first hinge axis 14, that is: the top and bottom of the hinge seat 11 are located on opposite sides of the middle of the hinge seat 11.

[0050] In some embodiments, the connector 121 has a second groove on the side near the single section 13. The end of the single section 13 away from the hinge seat 11 is disposed in the second groove, and the second hinge shaft 15 passes through the second groove to realize the hinge connection between the connector 121 and the single section 13.

[0051] For example, in this embodiment of the present disclosure, the second groove may be located at the middle of the connector 121 along the length of the second hinge shaft 15. The length of the second hinge shaft 15 may be parallel to the vertical direction Y. The second hinge shaft 15 passes sequentially through the top of the connector 121, the single section 13 located in the second groove, and the bottom of the connector 121 along its length, thereby achieving the hinge connection between the connector 121 and the single section 13.

[0052] It should be noted that the top and bottom of connector 121 refer to the two opposite ends of connector 121 in the length direction of the second hinge axis 15, that is: the top and bottom of connector 121 are located on opposite sides of the middle of connector 121.

[0053] In some embodiments, the connector 121 has a protrusion on the side near the fixing member 122, and the fixing member 122 has a recess on the side away from the second structural member, with the protrusion disposed within the recess. The third hinge shaft 16 passes through the recess and the protrusion located within the recess to achieve the hinge connection between the connector 121 and the fixing member 122.

[0054] For example, in this embodiment of the present disclosure, the protrusion may be located at the middle of the connector 121 along the length of the third hinge axis 16, and the recess may be located at the middle of the fixing member 122 along the length of the third hinge axis 16. The length direction of the third hinge axis 16 may be parallel to the vertical direction Y. The third hinge axis 16 passes sequentially through the top of the fixing member 122, the protrusion located in the recess, and the bottom of the fixing member 122 along its length direction to achieve the hinge connection between the connector 121 and the fixing member 122.

[0055] It should be noted that the top and bottom of the fastener 122 refer to the two opposite ends of the fastener 122 along the length of the third hinge axis 16, that is, the top and bottom of the fastener 122 are located on opposite sides of the middle of the fastener 122.

[0056] like Figures 2 to 4 As shown, this embodiment of the present disclosure provides a fire-fighting device 2, which can be used for cooling a structure to be fire-fighted. The fire-fighting device 2 includes a housing 21 and a door panel 22.

[0057] In some embodiments, the housing 21 may include a cover plate 213, a bottom plate 211, and a side plate 212. The cover plate 213 is spaced apart from the bottom plate 211, and the side plate 212 is connected to the cover plate 213 and the bottom plate 211, and the side plate 212 is arranged around a portion of the side periphery of the bottom plate 211 and the cover plate 213. The side of the housing 21 not surrounded by the side plate 212 forms an opening.

[0058] For example, in this embodiment of the present disclosure, the box 21 can be a rectangular body, the cover plate 213 can be arranged parallel to and spaced apart from the bottom plate 211, and the side plate 212 can be arranged perpendicular to the bottom plate 211. The side of the box 21 not surrounded by the side plate 212 forms an opening.

[0059] Among them, such as Figure 2 and Figure 3As shown, door panel 22 is located at the opening, and its orthographic projection on the housing 21 coincides with the opening. Door panel 22 includes two sides: a fixed side and a movable side. The fixed side and the movable side are located on opposite sides of door panel 22 along its length. The fixed side is hinged to one side of side panel 212, and door panel 22 rotates around the fixed side as its central axis. By rotating door panel 22 around the fixed side, the movable side can be connected to or separated from the other side of side panel 212. When the movable side is connected to side panel 212, door panel 22 is located entirely at the opening, so that it, together with side panel 212, surrounds the side periphery of bottom plate 211 to achieve sealing of the side periphery of housing 21.

[0060] It should be noted that in this embodiment, the door panel 22 and the housing 21 can be hinged together using any of the three-axis hinges 1 described above. For details, please refer to... Figure 2 As shown. At this time, the first structural component can be the side panel 212, the second structural component can be the door panel 22, and the three-axis hinge 1 is set on the fixed edge of the door panel 22 and the side panel 212 to realize the hinge connection between the door panel 22 and the side panel 212.

[0061] Specifically, the fastener 122 is fixedly installed on the fixed side of the door panel 22, and the hinge seat 11 is fixedly installed on the side of the side panel 212 near the fixed side.

[0062] For example, when the housing 21 is rectangular, the side panel 212 may include a plate-like structure surrounding the three sides of the base plate 211 and four columns perpendicular to the base plate 211, with the four columns located at the four apex corners of the base plate 211. The hinge seat 11 in the three-axis hinge 1 is fixedly connected to one of the columns near the fixed edge of the door panel 22.

[0063] When the base plate 211 is positioned on a horizontal plane, the first hinge axis 14, the second hinge axis 15, and the third hinge axis 16 can extend in the vertical direction Y. By using the three-axis hinge 1 to hinge the panel and the side panel 212, the door panel 22 can rotate around the three-axis hinge 1 to open and close the door panel 22. When the movable side rotates away from the housing 21, the door panel 22 opens to facilitate the loading and unloading of the structure to be cooled; when the movable side rotates towards the housing 21 until the door panel 22 covers the opening, the door panel 22 closes to seal the side circumference of the housing 21, improving the problem of leakage of the cooling medium used to cool the structure from the housing 21. This improves cooling efficiency and reduces the loss of cooling medium, thereby reducing fire protection costs.

[0064] Meanwhile, the three components of the three-axis hinge 1—fixed member 122, connecting member 121, and single section 13—can all rotate. That is, the fixed member 122 can rotate around the third hinge axis 16, the connecting member 121 can rotate around the second hinge axis 15, and the single section 13 can rotate around the first hinge axis 14. This increases the range of rotation angles of the door panel 22 relative to the side panel 212, thus exposing the opening of the housing 21 to a greater extent, which facilitates the loading and unloading of the structure to be cooled.

[0065] Furthermore, in this embodiment, the rotation angle of the single section 13 can be adjusted to allow the door panel 22 to be stretched in a direction perpendicular to the first hinge axis 14. That is, in addition to rotating around the three-axis hinge 1, the door panel 22 can also be translated in a direction perpendicular to the first hinge axis 14 using the single section 13, thereby adjusting the relative position between the door panel 22 and the side panel 212. See details for further information. Figure 2 As shown, in addition to being able to rotate around the first hinge axis 14, the second hinge axis 15, and the third hinge axis 16, the door panel 22 can also be moved in any direction parallel to the plane of the bottom plate 211 by adjusting the rotation angle of the single section 13. The door panel 22 is more flexible, which allows the door panel 22 to be more accurately aligned with the opening position of the box 21, so as to achieve sealing of the side circumference of the box 21.

[0066] For example, such as Figure 2 As shown, the door panel 22 can be moved left and right along the extension direction of its bottom edge near the bottom plate 211.

[0067] like Figure 2 and Figure 4 As shown, in some embodiments, a water inlet 23 and a water outlet 24 may be provided on the side plate 212 to allow the cooling medium to enter and exit the housing 21, thereby cooling the structure to be cooled inside the housing 21.

[0068] For example, the water inlet 23 can be located on the top of the door panel 22 near the cover plate 213, and the water outlet 24 can be located on the side panel 212 near the bottom of the bottom plate 211. Specifically, when the housing 21 is rectangular, the water inlet 23 and the water outlet 24 can be located on opposite sides of the housing 21 to allow the cooling medium to fill the bottom plate 211.

[0069] It should be noted that the structure to be cooled in this embodiment can be a battery, and the cooling medium can be cooling water, to cool the battery and mitigate the problem of uncontrollable explosive release of electrical energy and generation of smoke and flammable gases due to overheating of the structure to be cooled, thereby reducing the threat to life and property posed by the structure to be cooled. However, it is not limited to this; the structure to be cooled can be any structure other than a battery, and the cooling medium can also be any medium other than cooling water, depending on the actual situation.

[0070] like Figures 5 to 6 As shown, in some embodiments, a first sealing element 25 may be provided on the side of the cover plate 213 near the door panel 22. When the door panel 22 is closed, the first sealing element 25 can at least cover the gap between the cover plate 213 and the top surface of the door panel 22, so as to enhance the sealing between the box 21 and the door panel 22 and improve the fire protection effect of the fire-fighting device 2.

[0071] It should be noted that the top surface of the door panel 22 refers to the side of the door panel 22 that is away from the bottom plate 211.

[0072] like Figure 3 As shown, in some embodiments, a second sealing element 26 may be provided on the inner side of the door panel 22. The second sealing element 26 may be located on the side of the panel close to the bottom plate 211 to enhance the sealing between the panel and the bottom plate 211. However, it is not limited to this. The second sealing element 26 may also be located on the movable edge and the fixed edge of the panel to enhance the sealing between the door panel 22 and the side panel 212.

[0073] It should be noted that the inner side of the door panel 22 refers to the side of the door panel 22 facing the interior space of the cabinet 21 when the door panel 22 is closed.

[0074] In some embodiments, the fire-fighting device 2 may be provided with two three-axis hinges 1, and the two three-axis hinges 1 are arranged at intervals in the extension direction of the fixed side to enhance the stability of the connection between the door panel 22 and the side panel 212. However, it is not limited to this. In other embodiments, the fire-fighting device 2 may also be provided with three or more three-axis hinges 1 arranged at intervals in the extension direction of the fixed side, depending on the actual situation.

[0075] In the description of this specification, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0076] Furthermore, it should be noted that terms such as "upper," "lower," "left," and "right" are used only for distinction and convenience of description, and do not impose any positional limitations on the embodiments of the present invention. For example, "upper" in practice can refer to "lower," "left," or "right." In this disclosure, unless otherwise explicitly specified and limited, terms such as "assembly" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this disclosure can be understood according to the specific circumstances.

[0077] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A three-axis hinge for connecting a first structural member and a second structural member, characterized in that, include: A hinge seat, which is used to be fixedly installed on the first structural member; The double-forked joint includes a fastener and a connector that are connected to each other, the fastener being used to fix it to the second structural member; A single section, the opposite ends of which are respectively connected to the connector and the hinge seat; The hinge base and the single section are hinged together by a first hinge axis, the single section and the connecting member are hinged together by a second hinge axis, and the connecting member and the fixing member are hinged together by a third hinge axis. The first hinge axis, the second hinge axis and the third hinge axis are parallel to each other.

2. The triaxial hinge according to claim 1, characterized in that, The hinge seat has a first groove on the side opposite to the first structural member; one end of the single section is disposed in the first groove, and the first hinge shaft passes through the first groove to realize the hinge connection between the hinge seat and the single section.

3. The triaxial hinge according to claim 1, characterized in that, The connector has a second groove on the side near the single section, and the end of the single section away from the hinge seat is disposed in the second groove. The second hinge shaft passes through the second groove to realize the hinge connection between the connector and the single section.

4. The triaxial hinge according to claim 1, characterized in that, The connector has a protrusion on the side near the fixing member, and the fixing member has a recess on the side away from the second structural member. The protrusion is located in the recess. The third hinge shaft passes through the recess and the protrusion located in the recess to achieve the hinge connection between the connector and the fixing member.

5. A fire-fighting device, characterized in that, include: The housing includes a cover plate, a bottom plate, and side plates. The cover plate and the bottom plate are spaced apart. The side plates are connected to the cover plate and the bottom plate, and the side plates surround a portion of the side periphery of the bottom plate and the cover plate. The side plates are provided with an inlet and an outlet for the cooling medium to enter and exit the housing. The side of the housing not surrounded by the side plates forms an open opening. A door panel is provided at the opening, and the orthographic projection of the door panel on the box body coincides with the opening; the door panel includes two sides, a fixed side and a movable side, the fixed side and the movable side are located on opposite sides of the door panel in the length direction, the fixed side is hinged to one side of the side panel, the door panel rotates about the fixed side as the central axis, and the movable side can be connected to the other side of the side panel; The door panel and the housing are hinged together by a three-axis hinge as described in any one of claims 1 to 4.

6. The fire-fighting device according to claim 5, characterized in that, The fire-fighting device is provided with at least two of the three-axis hinges, and the two three-axis hinges are arranged at intervals in the extension direction of the fixed side.

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