Portable construction site fire receiving hopper

Abstract

The invention relates to the technical field of fire receiving buckets in building construction, and discloses a portable construction site fire receiving bucket which comprises fire receiving cloth with one face being convex and the other face being concave in an open state and further comprises a foldable framework connected to the convex face side of the fire receiving cloth, and when the foldable framework is in an open state, the foldable framework can be folded into a whole. When the foldable framework is in a folded state, the fire receiving cloth can be linked to be unfolded, and when the foldable framework is in a folded state, the fire receiving cloth can be linked to contract. According to the portable construction site fire welding bucket, the foldable framework is prevented from making contact with a high-temperature falling object through the design of the convex side framework, it is ensured that sparks and welding slag fall into the bucket without hindrance, the clamping stagnation risk is reduced, framework hindrance of a fire welding face in a traditional scheme is eliminated, and in addition, the fire welding bucket can be adjusted in all directions, the adjusting range is large, and adaptability is comprehensive.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting buckets in building construction, in particular to a portable fire fighting bucket on construction sites. Background Art

[0002] During steel structure construction, welding and cutting operations generate a large amount of high-temperature sparks, slag, and metal debris, which pose the risk of igniting surrounding materials or causing safety accidents. According to the national construction safety standard "JGJ 81-2002 Technical Specification for Welding of Building Steel Structures," a fire hopper must be placed directly below the welding point to catch falling objects and isolate the fire source. Such devices must meet the core requirements of portability, quick installation, and reliable collection to accommodate frequent site transfers and complex operation scenarios.

[0003] To enhance portability, existing technologies have proposed various foldable fire-catching bucket solutions. For example, patent CN202422048518.4 discloses a fire-catching bucket with an umbrella rib support structure. When folded, it forms a cylindrical shape for portability. However, when unfolded, the multiple foldable frames are positioned above the fire-catching surface, directly opposite the welding point. Another patent, CN202422831421.0, features an angle-adjustable fire-catching bucket, which tilts via a hinge mechanism to accommodate non-vertical welding paths. These solutions attempt to balance convenience and adaptability through structural optimization.

[0004] However, the above solution has significant shortcomings: The support frame of the rib support structure fire hopper is exposed below the welding point. The frame directly blocks the falling objects, causing sparks and welding slag to collide and splash, reducing the collection efficiency and posing a safety hazard. Although the adjustable welding hopper can adapt to changes in inclination angle, its adjustment direction is single and its range is limited. It cannot flexibly respond to complex steering of the welding path, such as multi-angle switching. Overall, the existing folding fire bucket sacrifices the unobstructedness and omnidirectional adaptability of the fire contact surface while simplifying carrying, making it difficult to simultaneously meet the safety requirements of construction specifications and the flexible needs of dynamic operations; although the adjustable fire bucket takes into account unobstructedness and multi-directional adaptability, it also has the defects of being inconvenient to carry and not having comprehensive adaptability.

[0005] Therefore, there is an urgent need for a fire-collecting bucket that is free of frame obstruction, supports omnidirectional flexible adjustment and maintains portability to solve the core defects of low collection efficiency and poor adaptability. Summary of the Invention

[0006] The present invention is intended to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to propose a portable construction site fire catching bucket.

[0007] The portable construction site fire catching bucket according to the present invention comprises a fire catching cloth having a convex surface on one side and a concave surface on the other side in an expanded state, and further comprises a foldable frame connected to the convex side of the fire catching cloth, so that when the foldable frame is in the expanded state, the fire catching cloth can be linked to expand, and when the foldable frame is in the folded state, the fire catching cloth can be linked to retract; The purpose of this setting is: by connecting the foldable frame to the convex side of the fire cloth (the side away from the welding point), the concave surface of the fire cloth forms a completely frame-free, exposed and smooth fire surface, ensuring that sparks and welding slag fall into the bucket without hindrance, eliminating the frame obstruction of the fire surface in the traditional solution; at the same time, the rapid expansion and contraction characteristics of the foldable structure are maintained, and the fire cloth is rolled up through the contraction of the frame to maintain a cylindrical portable shape and maintain efficient portability; in addition, the convex side frame design prevents the foldable frame from contacting high-temperature falling objects, reduces the risk of jamming, and provides the possibility for subsequent expansion of the omnidirectional adjustment function.

[0008] In some examples of the present invention, the foldable skeleton includes a plurality of linkage rods, which are distributed circumferentially along the central axis of the fire cloth, each linkage rod extends radially along the fire cloth, and one end of each linkage rod is hinged or rotationally connected relative to the fire cloth near the center of the fire cloth, and each linkage rod is connected to the fire cloth in its extension direction.

[0009] The purpose of this arrangement is to follow the partial structure of the folding frame in the traditional umbrella-shaped fire-catching bucket. After the circumferentially distributed linkage rods are folded, they can be gathered along the central axis of the fire-catching cloth to continue to form a columnar portable state.

[0010] In some examples of the present invention, the fire cloth includes a pleated contraction area, and each linkage rod is a telescopic rod.

[0011] The purpose of this arrangement is: first, the fire-welding cloth is provided with a radial pleated contraction zone, so that the cloth surface does not need to be forced to be squeezed by the frame when it is stretched. In the process of being pushed by the foldable frame to stretch the fire-welding cloth, its cross-section dynamically changes from an acute angle, a flat angle, and an obtuse angle until a concave surface is formed on the side away from the foldable frame. During this process, the cloth surface will not be torn or plastically deformed; Secondly, the linkage rod is set as a telescopic rod, which can adjust the length independently. Combined with the elastic pleated cloth surface, it provides the possibility for subsequent expansion of the omnidirectional adjustment function. For example, when the direction needs to be changed in a certain welding scene, there is no need to reposition the fire bucket. You only need to adjust the length of the linkage rod at the corresponding angle to increase the coverage area of ​​the fire bucket at this point, or when the area of ​​the fire bucket needs to be increased, adjust the length of all linkage rods to increase the operating area of ​​the fire bucket.

[0012] In some examples of the present invention, the foldable skeleton also includes a plurality of pull ropes and a plurality of first elastic members corresponding one to one with the plurality of linkage rods, so that the linkage rods can produce contraction and extension operations when subjected to the pulling force of the pull ropes in one direction and the recovery deformation operation of the first elastic members in the opposite direction.

[0013] The purpose of this arrangement is to put each linkage rod into a contracted state under the pre-tensioning action of the pull rope. If the pull rope continues to be applied with force, the linkage rod will continue to contract. During this process, the first elastic member is in a compressed state, accumulating elastic potential energy. When the pull rope is released, the first elastic member generates a restoring deformation force, which acts on the linkage rod, causing the linkage rod to extend. In the initial state, the pull rope is pre-tightened to fix the state of the pull rope, the first elastic part is in a compressed state, and the fire-connecting cloth is in a normal state. When the area of ​​the fire-connecting cloth in a certain direction needs to be increased, the pull rope in that direction is released, and the recovery deformation force of the first elastic part causes the linkage rod to stretch to achieve adjustment of the specific direction of the fire-connecting cloth. During the entire adjustment process, only the pull rope needs to be operated.

[0014] The advantages of this arrangement are: precise expansion of local areas, by releasing the pull rope in a specific direction, the corresponding linkage rod can independently extend under the restoring force of the first elastic part, thereby achieving unilateral area expansion of the fire-connecting cloth, and all pull ropes can also be released to expand the fire-connecting cloth comprehensively; in addition, it provides the possibility of a self-locking safety mechanism, that is, when the pull rope is fixed, the preload force is balanced with the compression force of the elastic part, forming a mechanical self-locking to avoid accidental contraction during operation; and this structure also provides the possibility of convenient high-altitude adjustment, that is, only a single pull / release rope operation is required to complete the expansion in any direction.

[0015] In some examples of the present invention, each linkage rod includes a first linkage rod near the center of the fire-connecting cloth and a second linkage rod near the edge of the fire-connecting cloth. The second linkage rod is sleeved on the first linkage rod, and the first elastic member is placed in the inner cavity of the second linkage rod, abutting between the first linkage rod and the second linkage rod. The pull rope passes through the inner cavity of the first linkage rod, the inner cavity of the second linkage rod and is connected to the end of the second linkage rod in sequence.

[0016] The purpose of such a setting is to embed the first elastic member and the pull rope into the inner cavity of the first and second linkage rods, isolate welding slag / dust, avoid the problem of melting and failure of the external mechanism, and realize the closed setting of the drive system.

[0017] In some examples of the present invention, the portable construction site fire fighting bucket also includes a number of rope control mechanisms corresponding one to one with the pull rope, each rope control mechanism includes a spiral spring, one end of the spiral spring is fixed relative to the fire fighting cloth, and the other end is connected to the pull rope, and the restoring deformation force of the spiral spring is greater than the restoring deformation force of the first elastic member.

[0018] The purpose of the arrangement is that when the restoring deformation force of the volute spring is greater than the restoring deformation force of the first elastic member, the first elastic member is in a compressed state and the linkage rod is in a contracted state under the tension of the volute spring in the initial state, that is, the firepot is in the use state of the base, and when the length of a specific linkage rod needs to be adjusted, the corresponding volute spring is only needed to be compressed by applying force to release the pull rope, so that the control of the pull rope is transferred to the volute spring to provide the possibility of convenient control of the pull rope; in addition, when the force applied to the volute spring disappears, the volute spring restores the deformation, the pull rope is pulled, the first elastic member is compressed again, and the linkage rod is contracted, and the whole process only needs to operate the volute spring.

[0019] In some examples of the present application, each rope control mechanism further comprises an annular support which is rotationally connected relative to the fire screen, and the volute spring is wound in the inner ring of the annular support, and one end thereof penetrates through the outer ring of the annular support and is connected with the pull rope.

[0020] The purpose of the arrangement is that first, the volute spring is wound by the annular support as a physical support; second, the winding movement of the volute spring is converted into the rotational movement of the annular support while maintaining the linear control of the pull rope, so that the pull rope is conveniently controlled, that is, when the pull rope needs to be released, the annular support is driven to rotate, at this time, since one end of the volute spring is fixed relative to the fire screen, the volute spring will be wound, and when the pull rope is released to a certain extent, the state of the annular support is locked to lock the state of the firepot.

[0021] In some examples of the present application, each rope control mechanism further comprises a ratchet cover plate installed on the side of the annular support, and a locking button installed on one side of the ratchet cover plate, the locking button is formed with teeth which can engage with the ratchet teeth of the ratchet cover plate, the locking button can be translated relative to the ratchet cover plate under the force in one direction to disengage the engagement with the ratchet cover plate, and can be translated relative to the ratchet cover plate under the restoring deformation force of the second elastic member in the opposite direction to re-engage with the ratchet cover plate.

[0022] The purpose of the arrangement is that the locking button is used to lock the state of the annular support in real time, that is, when the second elastic member is in a free state, the teeth of the locking button engage with the ratchet cover plate to lock the state of the annular support, when the annular support is driven to rotate, the ratchet cover plate rotates to interfere with the teeth of the locking button, the locking button is displaced in the direction of compressing the second elastic member, and when the ratchet teeth of the ratchet cover plate are misaligned with the teeth of the locking button, the locking button is reset under the restoring deformation force of the second elastic member, so as to cycle and produce a "click" sound. The advantage of the arrangement is that when the annular support is driven to release the pull rope, the release state of the pull rope is locked at any time, so that the operation is convenient, and when the fire receiving pot needs to be recovered to the initial state, the locking button is only pressed to make the teeth of the locking button disengage from the ratchet teeth of the ratchet cover, and then the pull rope is completely retracted.

[0023] In some examples of the present application, each rope control mechanism further comprises an annular knob, the inner ring surface of the annular knob is a ratchet ring surface, and the ratchet teeth of the ratchet cover extend to engage with the ratchet ring surface.

[0024] The purpose of the arrangement is to facilitate driving the annular support, i.e. when the pull rope needs to be released, the annular knob is rotated.

[0025] In some examples of the present application, the foldable framework further comprises a main rod and a plurality of driving rods corresponding to the linkage rods one by one, one end of the main rod is fixedly connected to the center of the fire receiving cloth, the plurality of rope control mechanisms are connected to the other end of the main rod in sequence, one end of the linkage rod close to the center of the fire receiving cloth is hingedly or rotatably connected to the main rod, one end of the driving rod is slidingly connected to the main rod, and the other end is hingedly or rotatably connected to the middle part of the linkage rod.

[0026] The purpose of the arrangement is that firstly, the opening and closing operations of all linkage rods are realized by sliding the driving rods on the main rod, and secondly, all rope control mechanisms are integrated at the end of the main rod, so that the centralized control of the extension and retraction operations of the linkage rods is facilitated.

[0027] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0029] Figure 1 It is a front view of the portable construction site fire receiving pot in the unfolded state in the embodiment of the present application. Figure 2 It is a schematic view of the fire receiving cloth in the embodiment of the present application. Figure 1 It is a schematic view of the fire receiving cloth in the embodiment of the present application. Figure 3 It is a top view of the foldable framework in the embodiment of the present application. Figure 4 It is a schematic view of the fire receiving cloth in the embodiment of the present application. Figure 3 It is a sectional view at A-A. Figure 5Attached to the embodiment of the present invention Figure 2 A schematic diagram of the fire receiving bucket in a folded state; Figure 6 Attached to the embodiment of the present invention Figure 2 Cross-sectional view at BB; Figure 7 is a three-dimensional diagram of an annular bracket according to an embodiment of the present invention; Figure 8 Attached to the embodiment of the present invention Figure 2 Cross-sectional view at CC; Figure 9 Attached to the embodiment of the present invention Figure 2 Cross-sectional view at DD.

[0030] Description of reference numerals: Fire cloth 1, wrinkle contraction area 11; Foldable frame 2, linkage rod 21, first linkage rod 211, guide protrusion 2111, second linkage rod 212, guide groove 2121, end cap 213, annular groove 2131, main rod 22, main rod cavity 221, first through hole 222, second through hole 223, driving rod 23, pressure cover 24, stopper 241, sliding sleeve 25, movable stopper 26, pull rope 27, first elastic member 28; Rope control mechanism 3, scroll spring 31, housing 32, third through hole 321, docking post 322, cylindrical slot 323, annular bracket 33, docking hole 331, retaining wall 332, strip slot 333, connecting piece 34, ratchet cover 35, ratchet 351, locking button 36, teeth 361, second elastic member 37, annular knob 38; Handle 4; Connecting seat 5. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] 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", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments 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 only to explain the present invention and are not to be construed as limiting the present invention.

[0035] Reference below Figures 1 to 9 The portable construction site fire fighting bucket provided by the embodiment of the present invention is shown and described.

[0036] Reference below Figures 1 to 8 The figure shows a portable construction site fire fighting bucket provided by an embodiment of the present invention.

[0037] For details, please see the attached Figure 1 , is a front view of the portable construction site fire catching bucket in its open state. The portable construction site fire catching bucket comprises a fire catching cloth 1 with one convex side and one concave side. The concave side is used to catch sparks, welding slag, and metal scraps, while the convex side is connected to a foldable frame 2. When the foldable frame 2 is in the open state, it can move the fire catching cloth 1 to expand. When the foldable frame 2 is in the folded state, it can move the fire catching cloth 1 to contract, thus achieving the portability of the fire catching bucket. It should be noted that the difference between this fire-catching bucket and the traditional fire-catching bucket is that the folding frame of the traditional fire-catching bucket is set on the concave side of the fire-catching cloth, while the foldable frame 2 of this fire-catching bucket is set on the convex side of the fire-catching cloth 1, avoiding defects such as sparks and welding slag collision and splashing.

[0038] Please continue to see the attached Figure 1 The fire-jointing cloth 1 is made of a plurality of fan-shaped cloths. When in the open state, it is a curved structure and thus has a convex side and a concave side.

[0039] Please see the attached Figure 1 ~Attached Figure 3 , attached Figure 2 For attachment Figure 1 Schematic diagram of removing the fire cloth 1, attached Figure 3 FIG2 is a top view of the foldable frame 2, which includes four linkage rods 21 distributed circumferentially along the central axis of the fire cloth. One end of each linkage rod 21 is hinged relative to the fire cloth 1 near the center of the fire cloth 1. Each linkage rod 21 is connected to the fire cloth 1 along its extension direction. It should be noted that each linkage rod 21 is connected to the fire cloth 1 in its extension direction as follows: while the linkage rod 21 extends radially along the fire cloth 1, it forms a plurality of connection points with the fire cloth 1 in the radial direction; In this way, when the four linkage rods 21 are in the open state, they are distributed in an umbrella shape, which can support the fire cloth 1. When the four linkage rods 21 are in the folded state, they can drive the fire cloth 1 to fold into a column for portability.

[0040] Please continue to see the attached Figure 1 ~Attached Figure 3 The foldable skeleton 2 also includes a main rod 22 and several driving rods 23 corresponding to the linkage rod 21. One end of the main rod 22 is fixedly connected to the center of the fire-connecting cloth 1, and the end of the linkage rod 21 close to the center of the fire-connecting cloth 1 is hinged to the main rod 22. One end of the driving rod 23 is slidably connected to the main rod 22, and the other end is hinged to the middle part of the linkage rod 21.

[0041] Please continue to see the attached Figure 2 ~Attached Figure 4 , attached Figure 4 For attachment Figure 3 In the cross-sectional view at AA, the connection method between the main rod 22 and the fire cloth 1 is: a main rod cavity 221 is formed in the main rod 22, and the main rod cavity 221 extends to both ends of the main rod 22. The foldable skeleton 2 also includes a pressure cover 24, which presses the center of the fire cloth 1 into the main rod cavity 221 and is connected to the main rod cavity 221 by means of threads. In other embodiments, the two can also be connected by means of snaps, welding, interference fit, etc.

[0042] Please continue to see the attached Figure 2 ~Attached Figure 4 The pressure cover 24 also extends a stopper 241 along its radial direction. When the four linkage rods 21 are opened to a certain degree to form an obtuse angle, one end close to the center of the fire cloth 1 is blocked by the stopper 241, so that the fire cloth 1 just forms the required curved surface state.

[0043] Please continue to see the attached Figure 2 , Attachment Figure 4 The foldable frame 2 also includes a sliding sleeve 25, which is slidably mounted on the main rod 22. One end of each driving rod 23 is hinged to the sliding sleeve 25, thereby realizing a sliding connection between the driving rod 23 and the main rod 22.

[0044] Please continue to see the attached Figure 2 When the linkage rod 21 is opened, its state needs to be fixed, so the foldable frame 2 also includes a movable stopper 26, which is elastically installed in the middle of the main rod 22. When the sliding sleeve 25 slides to the required position, it passes over the movable stopper 26 and is fixed by the movable stopper 26, and the foldable frame 2 is in Figure 5 In the folded state shown, external force is applied to retract the movable stopper 26 into the main rod 22, and the sliding sleeve 25 can slide again; It should be noted that the specific configuration of the movable stopper 26 adopts the existing technology, with reference to the principle of an umbrella, and will not be described in detail here.

[0045] Please continue to see the attached Figure 1 The fire-connecting cloth 1 includes a wrinkle contraction area 11, and each linkage rod 21 is a telescopic rod. The wrinkle contraction area 11 can be extended and retracted as the telescopic rod is extended and retracted, so that the fire-connecting cloth 1 is adjustable in multiple directions.

[0046] Please continue to see the attached Figure 2 and attached Figure 4 Each linkage rod 21 includes a first linkage rod 211 close to the center of the fire-connecting cloth 1 and a second linkage rod 212 close to the edge of the fire-connecting cloth 1. The second linkage rod 212 is sleeved on the first linkage rod 211, that is, the second linkage rod 212 can slide relative to the first linkage rod 211, so that the overall length of the linkage rod 21 can be adjusted, wherein the driving rod 23 is hinged to the first linkage rod 211.

[0047] Please continue to see the attached Figure 2 and attached Figure 4A guide protrusion 2111 is formed on the first linkage rod 211, and the guide protrusion 2111 extends along the elongation direction of the first linkage rod 211. A guide groove 2121 is formed on the second linkage rod 212 corresponding to the guide protrusion 2111. When the second linkage rod 212 is sleeved on the first linkage rod 211, the guide protrusion 2111 is placed in the guide groove 2121. When the second linkage rod 212 slides relative to the first linkage rod 211, the guide protrusion 2111 and the guide groove 2121 guide each other to prevent the second linkage rod 212 from twisting relative to the first linkage rod 211 and affecting the shape of the fire connection cloth 1.

[0048] Please continue to see the attached Figure 4 The first linkage rod 211 and the second linkage rod 212 are both rods with hollow cavities. One end of the first linkage rod 211 forms a hinged portion and is hinged to the main rod 22, and the other end is connected to the cavity of the second linkage rod 212. The end of the second linkage rod 212 away from the first linkage rod 211 is open, and an end cap 213 is provided at the opening. The end cap 213 is placed in the opening to close the end of the second linkage rod 212, and an annular groove 2131 is formed between the end of the second linkage rod 212 and the end cap 213. The annular groove 2131 is used to connect with the fire cloth 1, and can be connected by buckles, straps, etc.

[0049] Please continue to see the attached Figure 1 ~Attached Figure 2 and attached Figure 4 The foldable frame 2 further includes four pull ropes 27 and four first elastic members 28 corresponding to the linkage rods 21, so that the linkage rods 21 can produce contraction and extension operations when subjected to the pulling force of the pull ropes 27 in one direction and the first elastic members 28 recovering the deformation in the opposite direction; Specifically, each pull rope 27 extends into the cavity of the corresponding first linkage rod 211 and the second linkage rod 212, and one end of the pull rope 27 extends to the end cap 213 and is pressed against the end of the second linkage rod 212 by the end cap 213. The other end of the pull rope 27 extends to the end of the first linkage rod 211 close to the main rod 22, and is then placed into the main rod cavity 221 through the first through hole 222 provided on the main rod 22. In this way, when a force is applied to the pull rope 27, the second linkage rod 212 can be driven close to the first linkage rod 211, causing the linkage rod 21 to retract. It should be noted that the first through hole 222 is provided at one end of the main rod 22 close to the fire-catching cloth 1. This is done to hide the pull rope 27 within the main rod 22 as much as possible and prevent the pull rope 27 from moving in an exposed environment. In addition, there are four first through holes 222 corresponding to the pull ropes 27. The pull rope 27 also has a structure that continues to extend, which will be described below. Specifically, the first elastic member 28 is a cylindrical spring, which is installed in the cavity of the corresponding second linkage rod 212. One end of the spring abuts against the end cap 213, and the other end abuts against the end of the first linkage rod 211. In this way, during the contraction of the linkage rod 21, the first elastic member 28 is compressed and accumulates elastic potential energy. Once the force applied to the pull rope 27 is released, the first elastic member 28 restores its deformation, driving the second linkage rod 212 away from the first linkage rod 211, causing the linkage rod 21 to extend.

[0050] Please continue to see the attached Figure 1 ~Attached Figure 2 and attached Figure 6 , attached Figure 6 For attachment Figure 2 In the cross-sectional view at BB, the fire receiving bucket also includes four rope control mechanisms 3 corresponding to the pull rope 27 one by one. Each rope control mechanism 3 includes a vortex spring 31. One end of the vortex spring 31 is fixed relative to the fire receiving cloth 1, and the other end is connected to the pull rope 27. The restoring deformation force of the vortex spring 31 is greater than the restoring deformation force of the first elastic member 28. When it is arranged in this way, in the absence of external force intervention, the restoring deformation force of the vortex spring 31 operates on the pull rope 27, so that the first elastic member 28 is in a contracted state, and the first elastic member 28 is in a compressed state, that is, the fire receiving bucket is in a non-stretched state.

[0051] Please continue to see the attached Figure 1 ~Attached Figure 2 and attached Figure 6 Each rope control mechanism 3 includes a shell 32, and the four rope control mechanisms 3 have four shells 32 correspondingly. The four shells 32 are arranged in sequence along the extension direction of the main rod 22 at the end away from the fire connection cloth 1. Specifically, the shell 32 closest to the main rod 22 is connected to the main rod 22 by a threaded connection. In other embodiments, welding, interference fit, screw connection, flange connection and other connection methods can also be selected. The remaining three shells 32 are connected to the previous shell 32 in sequence by screws; in addition, the lower end of the shell 32 farthest from the main rod 22 is also connected to the handle 4, which is used for grasping to facilitate the operation of docking the fire bucket, and the handle 4 is provided with an anti-slip pattern; the end of the handle 4 away from the shell 32 is provided with a connecting seat 5, which is a U-shaped seat, welded to the handle 4, and can be fixed to the square steel of the construction scene by screws.

[0052] Please continue to see the attached Figure 1 , Attachment Figure 2 , Attachment Figure 4 and attached Figure 6The structure of the continued extension of the pull rope 27 will be described here. Specifically, after the pull rope 27 is placed into the main rod cavity 221 through the first through hole 222, it continues to extend along the axial direction of the main rod 22 to the end close to the rope control mechanism 3, and then extends out of the main rod cavity 221 through the second through hole 223 opened on the main rod 22. Then, it extends into the shell 32 through the third through hole 321 opened on the shell 32 and connects with the scroll spring 31 installed in the shell 32. There are four second through holes 223 corresponding to the pull ropes 27. Please refer to the attached Figure 6 , four third through holes 321 are provided on the shell 32 at BB. This is because the rope control mechanisms 3 are stacked in sequence. The rope control mechanism 3 of the bottom layer needs to sequentially pass through four shells 32 and then be placed in the main rod cavity 221. The rope control mechanism 3 of the next lower layer needs to sequentially pass through three shells 32 and then be placed in the main rod cavity 221. By analogy, the rope control mechanism 3 of the top layer only needs to pass through one shell 32 and then be placed in the main rod cavity 221. Therefore, the top layer of shell 32 (i.e., the shell 32 at BB) needs to pass through four pull ropes 27, and its corresponding four third through holes 321 need to be opened, the shell 32 of the next upper layer needs to have three third through holes 321, the shell 32 of the next lower layer needs to have two third through holes 321, and the shell 32 of the bottom layer needs to have one third through hole 321. In addition, for installation needs, as shown in the attached Figure 1 As shown, each housing 32 is composed of two shells on both sides, and the shells on both sides are buckled together to form a complete housing 32.

[0053] Please continue to see the attached Figure 6 ~Attached Figure 7 , attached Figure 7 The figure is a three-dimensional diagram of the annular bracket. Each rope control mechanism 3 also includes an annular bracket 33. The annular bracket 33 is rotatably connected to the fire cloth 1. The volute spring 31 is wound in the inner ring of the annular bracket 33, and one end of the volute spring 31 passes through the outer ring of the annular bracket 33 and is connected to the pull rope 27. Specifically, one side of the inner ring of the annular bracket 33 is relatively closed, and a docking hole 331 is formed on the closed side. A docking post 322 is formed on the outer shell 32. The annular bracket 33 is placed in the outer shell 32, so that the docking post 322 extends into the docking hole 331, thereby allowing the annular bracket 33 to rotate relative to the outer shell 32. The other side of the inner ring of the annular bracket 33 is relatively open. The scroll spring 31 is placed on the inner ring of the annular bracket 33 on this side, and one end of the scroll spring 31 is hung on the docking post 322 to achieve a fixed connection with the outer shell 32. In addition, the outer ring of the annular support 33 is provided with a blocking wall 332, so that an annular groove is formed on the outer ring, and the pull rope 27 is wound around the annular groove after being inserted into the shell 32 through the third through hole 321; In addition, the annular support 33 is provided with a strip-shaped groove 333, and the control rope mechanism 3 further comprises a connecting piece 34, which penetrates through the strip-shaped groove 333 and extends to the inner ring and the outer ring of the annular support 33 at two ends, respectively, is connected to the end of the volute spring 31 away from the butt joint column 322 at the inner ring side, and is connected to the pull rope 27 at the outer ring side.

[0054] Please continue to refer to the accompanying drawings Figure 1 The accompanying drawings Figure 2 , the accompanying drawings Figure 7 The accompanying drawings Figure 8 , the accompanying drawings Figure 8 The accompanying drawings Figure 2 In the cross-sectional view at C-C, each control rope mechanism 3 further comprises a ratchet cover plate 35 installed on the side of the annular support 33, and a locking button 36 installed on one side of the ratchet cover plate 35, the locking button 36 is formed with teeth 361 which can engage with the ratchet teeth of the ratchet cover plate 35, the locking button 36 can be translated relative to the ratchet cover plate 35 to disengage from the ratchet cover plate 35 under the action of the force in one direction, and can be translated relative to the ratchet cover plate 35 to re-engage with the ratchet cover plate 35 under the action of the restoring deformation of the second elastic member 37 in the opposite direction; Specifically, the ratchet cover plate 35 is buckled on the open side of the annular support 33, and extends out of the ratchet wheel 351 on the side away from the closed end of the annular support 33 along the axial direction of the ratchet cover plate 35, the teeth 361 on the locking button 36 lock the state of the ratchet wheel 351, so that the state of the ratchet cover plate 35, the annular support 33 and the pull rope 27 is locked at any time without the participation of external force; In addition, a cylindrical groove 323 for accommodating the second elastic member 37 is formed in the shell 32, one end of the locking button 36 extends out of the shell 32, and the other end extends to the cylindrical groove 323 through the ratchet cover plate 35, the second elastic member 37 is a cylindrical spring which is penetrated by the end of the locking button 36, and when it is necessary to unlock the state of the annular support 33 and the pull rope 27, the locking button 36 can be continuously pressed.

[0055] Please continue to refer to the accompanying drawings Figure 1 The accompanying drawings Figure 2 , the accompanying drawings Figure 9 , the accompanying drawings Figure 9 The accompanying drawings Figure 2 In the cross-sectional view at D-D, each control rope mechanism 3 further comprises an annular knob 38, the inner ring surface of the annular knob 38 is a ratchet ring surface, and the ratchet teeth of the ratchet cover plate 35 extend to engage with the ratchet ring surface; Specifically, the annular knob 38 is sleeved on the ratchet 351 of the ratchet cover 35, and the annular knob 38 extends to the outside of the shell 32. When the annular knob 38 is rotated with external force, the ratchet cover 35 and the annular bracket 33 can be driven to rotate, the pull rope 27 can be released, and the linkage rod 21 can extend under the recovery deformation operation of the first elastic member 28, and the spiral spring 31 can be deformed; when the external force on the annular knob 38 is removed, the locking button 36 locks the status of the annular bracket 33 and the pull rope 27; when the linkage rod 21 needs to be retracted, the locking button 36 is continuously pressed to unlock the annular bracket 33, and the recovery deformation force of the spiral spring 31 drives the annular bracket 33 to rotate, the pull rope 27 is retracted, the linkage rod 21 contracts, the first elastic member 28 contracts, and elastic potential energy is accumulated.

[0056] Other components of the portable construction site fire fighting bucket according to the embodiment of the present invention, such as movable stops and the like, and operations are well known to those skilled in the art and will not be described in detail here.

[0057] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above 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.

[0058] 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. Portable construction site fire bucket, characterized by: It includes a fire-catching cloth with one side being convex and the other side being concave in the expanded state, and also includes a foldable frame connected to the convex side of the fire-catching cloth, so that when the foldable frame is in the expanded state, it can link the fire-catching cloth to expand, and when the foldable frame is in the folded state, it can link the fire-catching cloth to contract.

2. The portable construction site fire fighting bucket according to claim 1, characterized in that: The foldable skeleton includes several linkage rods, which are distributed circumferentially along the central axis of the fire cloth. One end of each linkage rod is hinged or rotationally connected relative to the fire cloth near the center of the fire cloth, and each linkage rod is connected to the fire cloth in its extension direction.

3. The portable construction site fire fighting bucket according to claim 2, characterized in that: The fire-jointing cloth includes a wrinkle contraction area, and each of the linkage rods is a telescopic rod.

4. The portable construction site fire fighting bucket according to claim 3, characterized in that: The foldable frame also includes a plurality of pull ropes and a plurality of first elastic members corresponding to the plurality of linkage rods, so that the linkage rods can contract and stretch when subjected to the pulling force of the pull ropes in one direction and the recovery deformation of the first elastic members in the opposite direction.

5. The portable construction site fire fighting bucket according to claim 4, characterized in that: Each of the linkage rods includes a first linkage rod near the center of the fire-connecting cloth and a second linkage rod near the edge of the fire-connecting cloth. The second linkage rod is sleeved on the first linkage rod, and the first elastic member is placed in the inner cavity of the second linkage rod, abutting between the first linkage rod and the second linkage rod. The pull rope passes through the inner cavity of the first linkage rod, the inner cavity of the second linkage rod and is connected to the end of the second linkage rod in sequence.

6. The portable construction site fire fighting bucket according to claim 4 or 5, characterized in that: It also includes several rope-control mechanisms corresponding to the pull rope one by one, each of the rope-control mechanisms includes a spiral spring, one end of the spiral spring is fixed relative to the fire-connecting cloth, and the other end is connected to the pull rope, and the restoring deformation force of the spiral spring is greater than the restoring deformation force of the first elastic member.

7. The portable construction site fire fighting bucket according to claim 6, characterized in that: Each of the rope control mechanisms also includes an annular bracket, which is rotatably connected relative to the fire cloth. The vortex spring is wound in the inner ring of the annular bracket, and one end of the vortex spring passes through the outer ring of the annular bracket and is connected to the pull rope.

8. The portable construction site fire fighting bucket according to claim 7, characterized in that: Each of the rope control mechanisms further includes a ratchet cover plate mounted on a side of the annular bracket, and a locking button mounted on one side of the ratchet cover plate, wherein teeth are formed on the locking button and can engage with the ratchet teeth of the ratchet cover plate. The locking button can be disengaged from the ratchet cover plate by translation relative to the ratchet cover plate under the action of an external force in one direction, and can be re-engaged with the ratchet cover plate by translation relative to the ratchet cover plate under the action of a restoring deformation of the second elastic member in the opposite direction.

9. The portable construction site fire fighting bucket according to claim 8, characterized in that: Each of the rope control mechanisms further comprises an annular knob, the inner annular surface of the annular knob being a ratchet annular surface, and the ratchet teeth of the ratchet cover plate extend to engage with the ratchet annular surface.

10. The portable construction site fire fighting bucket according to claim 6, characterized in that: The foldable skeleton also includes a main rod and several driving rods corresponding to the linkage rods one by one. One end of the main rod is fixedly connected to the center of the fire-connecting cloth, and several rope-control mechanisms are connected to the other end of the main rod in sequence. One end of the linkage rod close to the center of the fire-connecting cloth is hinged or rotatably connected to the main rod, one end of the driving rod is slidably connected to the main rod, and the other end is hinged or rotatably connected to the middle of the linkage rod.

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