Portable site fire pot

Abstract

The present application relates to the technical field of fire receiving hopper in building construction, and discloses a portable construction site fire receiving hopper, which comprises a fire receiving cloth with one convex surface and one concave surface in an open state, and a foldable framework connected to the convex surface side of the fire receiving cloth, so that the foldable framework can be linked to open the fire receiving cloth when the foldable framework is in the open state, and the foldable framework can be linked to shrink the fire receiving cloth when the foldable framework is in the folded state. The portable construction site fire receiving hopper disclosed by the present application avoids the contact between the foldable framework and high-temperature falling objects through the design of the convex surface side framework, ensures that sparks and welding slag can fall into the hopper without any obstruction, reduces the risk of jamming, and eliminates the obstruction of the framework of the fire receiving surface in the traditional scheme. In addition, the fire receiving hopper can be adjusted in all directions, has a large adjustment range, and has overall adaptability.

Description

Technical Field

[0001] This invention relates to the technical field of fire-fighting buckets for construction, and in particular to a portable fire-fighting bucket for construction sites. Background Technology

[0002] During steel structure construction, welding and cutting operations generate a large amount of high-temperature sparks, welding slag, and metal residue, posing a risk of igniting surrounding materials or causing safety accidents. According to the national construction safety standard "JGJ 81—2002 Technical Specification for Welding of Steel Structures in Buildings," a fire-catching hopper must be placed directly below the welding point to catch falling objects and isolate the ignition source. Such devices must meet the core requirements of portability, rapid installation, and reliable collection to adapt to high-frequency movement and complex operational scenarios on construction sites.

[0003] To improve portability, existing technologies have proposed various foldable welding bucket designs. For example, patent CN202422048518.4 discloses a welding bucket with an umbrella-rib support structure, which rolls up into a column shape for easy carrying. However, when unfolded, multiple folded frames are located above the welding surface, directly opposite the welding point. Another patent, CN202422831421.0, designs an angle-adjustable welding bucket, using a hinge mechanism to tilt the bucket to accommodate non-perpendicular welding paths. These designs attempt to balance convenience and adaptability through structural optimization.

[0004] However, the above solution has significant shortcomings:

[0005] The support frame of the umbrella-rib support structure for the fire-receiving bucket is exposed below the welding point. Its frame directly blocks falling objects, causing sparks and welding slag to collide and splash, reducing collection efficiency and posing a safety hazard.

[0006] While adjustable welding hoppers can adapt to changes in tilt angle, their adjustment direction is singular and their range is limited, making them unable to flexibly respond to complex changes in the welding path, such as multi-angle switching.

[0007] Overall, existing folding fire-catching buckets, while simplifying portability, sacrifice unobstructed and omnidirectional adaptability of the fire-catching surface, making it difficult to simultaneously meet the safety requirements of construction specifications and the flexibility needs of dynamic operations. Adjustable fire-catching buckets, while taking into account unobstructed and omnidirectional adaptability, also suffer from inconvenience and insufficient adaptability.

[0008] Therefore, there is an urgent need for a frameless fire-catching container that supports omnidirectional flexible adjustment and maintains portability, in order to solve the core defects of low collection efficiency and poor adaptability. Summary of the Invention

[0009] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a portable fire-fighting bucket for construction sites.

[0010] The portable fire-catching bucket proposed in this invention includes a fire-catching cloth with one side convex and the other side concave in an open state, and a foldable frame connected to the convex side of the fire-catching cloth, so that when the foldable frame is in an open state, it can be linked to the fire-catching cloth to open, and when the foldable frame is in a folded state, it can be linked to the fire-catching cloth to retract.

[0011] The purpose of this design is to: connect the foldable frame to the convex side of the fire-receiving cloth (the side opposite the welding point), so that the concave surface of the fire-receiving cloth forms a completely frameless, exposed, and smooth fire-receiving surface, ensuring that sparks and welding slag fall into the hopper without obstruction, thus eliminating the obstruction of the fire-receiving surface by the frame in traditional solutions; at the same time, it maintains the rapid expansion and contraction characteristics of the foldable structure, and the fire-receiving cloth is rolled up in conjunction with the frame contraction, maintaining a cylindrical portable shape and high efficiency and portability; in addition, the convex side frame design avoids contact between the foldable frame and high-temperature falling objects, reducing the risk of jamming and providing the possibility for subsequent expansion of omnidirectional adjustment function.

[0012] In some examples of the present invention, the foldable frame includes a plurality of linkages distributed circumferentially along the central axis of the fire-receiving cloth, each linkage extending radially along the fire-receiving cloth, one end of each linkage being rotatably connected relative to the fire-receiving cloth near the center of the fire-receiving cloth, and each linkage being connected to the fire-receiving cloth in its extending direction.

[0013] The purpose of this design is to retain part of the folded frame structure in the traditional umbrella-shaped fire-receiving container. After the circumferentially distributed linkage rods are folded, they can gather along the central axis of the fire-receiving cloth to continue forming a columnar portable state.

[0014] In some examples of the present invention, the fire-receiving cloth includes a wrinkled shrinkage area, and each linkage is a telescopic member.

[0015] The purpose of this design is as follows: First, the fire-receiving cloth is set as a radial pleated shrinkage zone, so that when the cloth is stretched open, there is no need for the skeleton to forcefully squeeze it. During the process of the fire-receiving cloth being stretched open by the push of the foldable skeleton, its cross-section dynamically changes in sequence from acute angle to flat angle to obtuse angle, until a concave surface is formed on the side away from the foldable skeleton. During this process, the cloth will not be torn or plastically deformed.

[0016] Secondly, the linkage rod is set as a telescopic rod, which can be independently adjusted in length. Combined with the elastic pleated fabric, it provides the possibility for subsequent expansion of omnidirectional adjustment function. For example, when the direction needs to be changed in a welding scenario, there is no need to reposition the welding bucket. Just adjust the length of the linkage rod at the corresponding angle to increase the coverage area of ​​the welding bucket at that point. Or when the area of ​​the welding bucket needs to be increased, adjust the length of all linkage rods to increase the working area of ​​the welding bucket.

[0017] In some examples of the present invention, the foldable frame further includes a plurality of pull ropes corresponding one-to-one with a plurality of linkage rods and a plurality of first elastic elements, so that when the linkage rods are subjected to the pulling force of the pull ropes in one direction and the first elastic elements are subjected to the recovery deformation in the opposite direction, they can generate contraction and extension operations.

[0018] The purpose of this design is to ensure that each linkage is in a contracted state under the pre-tension of the pull rope. If the pull rope is continued to be applied, the linkage will continue to contract. During this process, the first elastic element is in a compressed state, accumulating elastic potential energy. When the pull rope is released, the first elastic element generates a restoring deformation force, which acts on the linkage and causes the linkage to extend.

[0019] In the initial state, the pull rope is pre-tightened to fix its state. The first elastic element is in a compressed state, and the fire-receiving cloth is in a normal state. When it is necessary to increase the area of ​​the fire-receiving cloth in a certain direction, the pull rope in that direction is released. The restoring deformation force of the first elastic element causes the linkage rod to extend, thereby realizing the adjustment of the fire-receiving cloth in a specific direction. During the entire adjustment process, only the pull rope needs to be operated.

[0020] The advantages of this design are: precise expansion of localized areas; by releasing the pull ropes in a specific direction, the corresponding linkage rod extends independently under the restoring force of the first elastic element, thereby expanding the area of ​​the fire-receiving cloth on one side, or releasing all the pull ropes to expand the fire-receiving cloth comprehensively; in addition, it provides the possibility of a self-locking safety mechanism, that is, when the pull ropes are fixed, the pre-tension force and the compressive force of the elastic element are balanced, forming a mechanical self-lock, preventing accidental contraction during operation; and this structure also provides the possibility of convenient adjustment at high altitudes, that is, expansion in any direction can be completed with only a single pull / release operation.

[0021] In some examples of the present invention, each linkage rod includes a first linkage rod near the center of the fire-receiving cloth and a second linkage rod near the edge of the fire-receiving cloth. The second linkage rod is sleeved on the first linkage rod, and a first elastic element is placed in the inner cavity of the second linkage rod, abutting between the first linkage rod and the second linkage rod. A pull rope passes through the inner cavity of the first linkage rod, the inner cavity of the second linkage rod, and the end of the second linkage rod in sequence.

[0022] The purpose of this design is to house the first elastic element and the pull rope within the inner cavities of the first and second linkage rods, thereby isolating welding slag / dust, avoiding the problem of external mechanism fusion failure, and achieving a closed-loop design for the drive system.

[0023] In some examples of the present invention, the portable construction site fire-fighting bucket also includes a plurality of rope control mechanisms corresponding one-to-one with the pull rope. Each rope control mechanism includes a spiral spring, one end of which is fixed relative to the fire-fighting cloth and the other end is connected to the pull rope. The restoring deformation force of the spiral spring is greater than the restoring deformation force of the first elastic element.

[0024] The purpose of this design is as follows: When the restoring deformation force of the spiral spring is greater than that of the first elastic element, in the initial state, under the tension of the spiral spring, the first elastic element can be compressed, and the linkage rod is contracted. That is, when the fire hopper is in its basic operating state and the length of a specific linkage rod needs to be adjusted, only a force needs to be applied to the corresponding spiral spring to compress it, thus releasing the pull rope. In this way, the control of the pull rope is transferred to the spiral spring, making it easier to control the pull rope. In addition, when the force applied to the spiral spring disappears, the spiral spring returns to its original deformation, the pull rope is pulled, the first elastic element is recompressed, and the linkage rod contracts. The entire process only requires operation of the spiral spring.

[0025] In some examples of the present invention, each rope control mechanism further includes an annular support, which is rotatably connected relative to the fire-receiving cloth, and a spiral spring is wound in the inner ring of the annular support, with one end extending through to the outer ring of the annular support and connected to the pull rope.

[0026] The purpose of this setup is twofold: first, to use the annular bracket to wind up the spiral spring as a physical support; second, to convert the winding motion of the spiral spring into the rotational motion of the annular bracket while maintaining linear control of the pull rope. This facilitates rope control; when the pull rope needs to be released, the annular bracket is driven to rotate. Since one end of the spiral spring is fixed relative to the fire-receiving cloth, the spiral spring will wind up. When the pull rope is released to a certain extent, locking the state of the annular bracket locks the state of the fire-receiving hopper.

[0027] In some examples of the present invention, each rope control mechanism further includes a ratchet cover plate mounted on the side of the annular bracket, and a locking button mounted on one side of the ratchet cover plate. The locking button has teeth that can engage with the ratchet teeth of the ratchet cover plate. The locking button can be disengaged from the ratchet cover plate by translating relative to it under the force of an external force applied in one direction, and can be re-engaged from it by translating relative to it under the restoring deformation force of a second elastic member in the opposite direction.

[0028] The purpose of this design is as follows: the locking button is used to lock the state of the ring bracket in real time. When the second elastic element is in a free state, the teeth of the locking button engage with the ratchet cover plate to lock the state of the ring bracket. When the ring bracket is driven to rotate, the ratchet cover plate rotates and interferes with the teeth of the locking button. The locking button is displaced in the direction of compressing the second elastic element. When the ratchet cover plate's ratchet teeth and the locking button's teeth are misaligned, the locking button resets under the restoring deformation force of the second elastic element. This cycle repeats and produces a "click" sound.

[0029] The advantage of this setup is that when the ring bracket is driven to rotate and the pull rope is released, the release state of the pull rope is locked at all times, making operation convenient. When it is necessary to retract the fire-catching bucket to the initial state, simply press the locking button to disengage the teeth of the locking button from the ratchet cover, until the pull rope is fully retracted.

[0030] In some examples of the invention, each rope control mechanism further includes an annular knob, the inner annular surface of which is a ratchet annular surface, and the ratchet teeth of the ratchet cover plate extend to engage with the ratchet annular surface.

[0031] The purpose of this design is to facilitate the operation of the ring-shaped support; that is, when the pull rope needs to be released, simply turn the ring-shaped knob.

[0032] In some examples of the present invention, the foldable frame further includes a main rod and a plurality of drive rods corresponding one-to-one with the linkage rod. One end of the main rod is fixedly connected to the center of the fire-receiving cloth, and a plurality of rope control mechanisms are sequentially connected to the other end of the main rod. One end of the linkage rod near the center of the fire-receiving cloth is rotatably connected to the main rod, and one end of the drive rod is slidably connected to the main rod, while the other end is rotatably connected to the middle of the linkage rod.

[0033] The purpose of this design is twofold: firstly, by sliding the drive rod on the main rod, the opening and closing of all linkage rods can be achieved; secondly, all rope control mechanisms are integrated at the end of the main rod, facilitating centralized control of the linkage rod extension and retraction operations.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a front view of the portable construction site fire bucket in its open state according to an embodiment of the present invention;

[0037] Figure 2 Appendix in the embodiments of the present invention Figure 1 A diagram illustrating the removal of the fire-catching cloth;

[0038] Figure 3 This is a top view of the foldable skeleton in an embodiment of the present invention;

[0039] Figure 4 Appendix in the embodiments of the present invention Figure 3Sectional view at AA;

[0040] Figure 5 Appendix in the embodiments of the present invention Figure 2 A diagram showing the fire-receiving container in a folded state;

[0041] Figure 6 Appendix in the embodiments of the present invention Figure 2 Sectional view at BB;

[0042] Figure 7 This is a perspective view of the ring-shaped bracket in an embodiment of the present invention;

[0043] Figure 8 Appendix in the embodiments of the present invention Figure 2 Sectional view at CC;

[0044] Figure 9 Appendix in the embodiments of the present invention Figure 2 Sectional view at DD.

[0045] Explanation of reference numerals in the attached figures:

[0046] Fire-resistant cloth 1, wrinkled and contracted area 11;

[0047] 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, drive rod 23, pressure cap 24, stop 241, sliding sleeve 25, movable stop 26, pull rope 27, first elastic element 28;

[0048] Rope control mechanism 3, spiral spring 31, housing 32, third through hole 321, docking post 322, cylindrical groove 323, annular bracket 33, docking hole 331, baffle 332, strip groove 333, connecting piece 34, ratchet cover plate 35, ratchet 351, locking button 36, teeth 361, second elastic element 37, annular knob 38;

[0049] Handle 4;

[0050] Connector 5. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0055] The following is for reference. Figures 1-9 The illustration shows a portable fire-fighting bucket for construction sites provided in an embodiment of the present invention.

[0056] The following is for reference. Figures 1-8 The illustration shows a portable fire-fighting bucket provided by an embodiment of the present invention.

[0057] Specifically, please see the appendix. Figure 1 This is a front view of the portable fire-catching bucket in its open state. The portable fire-catching bucket includes a fire-catching cloth 1 with one convex side and one concave side in its open state. 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 be linked to the fire-catching cloth 1 to open. When the foldable frame 2 is in the folded state, it can be linked to the fire-catching cloth 1 to retract, thus achieving the portability of the fire-catching bucket.

[0058] It should be noted that the difference between this fire-receiving bucket and the traditional fire-receiving bucket is that the folding frame of the traditional fire-receiving bucket is set on the concave side of the fire-receiving cloth, while the foldable frame 2 of this fire-receiving bucket is set on the convex side of the fire-receiving cloth 1, which avoids defects such as sparks and welding slag colliding and splashing.

[0059] Please continue reading the appendix. Figure 1 The fire-receiving cloth 1 is made of several fan-shaped cloths spliced ​​together. When it is in the open state, it has a curved structure, so it has a convex side and a concave side.

[0060] Please see the appendix Figure 1 ~Appendix Figure 3 , attached Figure 2 For the appendix Figure 1 A schematic diagram of removing the fire-receiving cloth 1 is attached. Figure 3 The top view of the foldable frame 2 is shown. The foldable frame 2 includes four linkage rods 21. The four linkage rods 21 are distributed circumferentially along the central axis of the fire-receiving cloth. One end of each linkage rod 21 is hinged relative to the fire-receiving cloth 1 near the center of the fire-receiving cloth 1. Each linkage rod 21 is connected to the fire-receiving cloth 1 in its extending direction.

[0061] It should be noted that the connection between each linkage rod 21 and the fire-receiving cloth 1 in its extending direction is explained as follows: while extending radially along the fire-receiving cloth 1, the linkage rod 21 forms multiple connection points with the fire-receiving cloth 1 in the radial direction.

[0062] Thus, when all four linkage rods 21 are in the open state, they are distributed in an umbrella shape, which can support the fire-receiving cloth 1. When all four linkage rods 21 are in the folded state, they can drive the fire-receiving cloth 1 to fold into a column shape for easy carrying.

[0063] Please continue reading the appendix. Figure 1 ~Appendix Figure 3 The foldable frame 2 also includes a main rod 22 and a number of drive rods 23 corresponding to the linkage rods 21. One end of the main rod 22 is fixedly connected to the center of the fire-receiving cloth 1. One end of the linkage rod 21 near the center of the fire-receiving cloth 1 is hinged to the main rod 22. One end of the drive rod 23 is slidably connected to the main rod 22, and the other end is hinged to the middle of the linkage rod 21.

[0064] Please continue reading the appendix. Figure 2 ~Appendix Figure 4 , attached Figure 4 For the appendix Figure 3 In the cross-sectional view at AA, the connection between the main rod 22 and the fire-receiving cloth 1 is as follows: a main rod cavity 221 is formed inside the main rod 22, and the main rod cavity 221 extends to both ends of the main rod 22. The foldable frame 2 also includes a pressure cap 24, which presses the center of the fire-receiving cloth 1 into the main rod cavity 221 and is connected to the main rod cavity 221 by a thread. In other embodiments, the two can also be connected by snap-fit, welding, interference fit, etc.

[0065] Please continue reading the appendix. Figure 2 ~Appendix Figure 4 The pressure cap 24 also extends a stop 241 along its radial direction. When the four linkage rods 21 are opened to a certain extent to form an obtuse angle, one end of them near the center of the fire-receiving cloth 1 is blocked by the stop 241, so that the fire-receiving cloth 1 forms the required curved surface state.

[0066] Please continue reading the appendix. Figure 2 Appendix Figure 4 The foldable frame 2 also includes a sliding sleeve 25, which is slidably fitted onto the main rod 22. One end of each drive rod 23 is hinged to the sliding sleeve 25, thereby realizing the sliding connection between the drive rod 23 and the main rod 22.

[0067] Please continue to refer to the appendix. Figure 2 When the linkage 21 is open, its state needs to be fixed. Therefore, the foldable frame 2 also includes a movable stop 26. The movable stop 26 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 stop 26 and is fixed by the movable stop 26, while the foldable frame 2 is in a fixed position. Figure 5 When in the folded state shown, external force can be applied to retract the movable stop 26 into the main rod 22, and the sliding sleeve 25 can then slide again.

[0068] It should be noted that the specific setting of the active stop 26 adopts existing technology and refers to the principle of an umbrella, which will not be elaborated here.

[0069] Please continue reading the appendix. Figure 1 The fire-receiving cloth 1 includes a pleated shrinkage area 11, and each linkage rod 21 is a telescopic rod. The pleated shrinkage area 11 can extend and retract with the extension and retraction of the telescopic rod, making the fire-receiving cloth 1 adjustable in multiple directions.

[0070] Please continue reading the appendix. Figure 2 and attached Figure 4 Each linkage 21 includes a first linkage 211 near the center of the fire-receiving cloth 1 and a second linkage 212 near the edge of the fire-receiving cloth 1. The second linkage 212 is sleeved on the first linkage 211, that is, the second linkage 212 can slide relative to the first linkage 211, so that the overall length of the linkage 21 is adjustable. The drive rod 23 is hinged to the first linkage 211.

[0071] Please continue reading the appendix. Figure 2 and attached Figure 4A guide protrusion 2111 is formed on the first linkage rod 211. The guide protrusion 2111 extends along the elongation direction of the first linkage rod 211. The second linkage rod 212 has a guide groove 2121 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-receiving cloth 1.

[0072] Please continue reading the appendix. Figure 4 Both the first linkage rod 211 and the second linkage rod 212 are rods with hollow cavities. One end of the first linkage rod 211 forms a hinge and is hinged to the main rod 22, while 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 open. The end cap 213 is inserted into the open 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-receiving cloth 1, which can be done by means of buckles, straps, etc.

[0073] Please continue reading the appendix. Figure 1 ~Appendix Figure 2 and attached Figure 4 The foldable frame 2 also includes four pull ropes 27 and four first elastic elements 28 corresponding to the linkage rod 21, so that the linkage rod 21 can generate contraction and extension when it is subjected to the pulling force of the pull rope 27 in one direction and the first elastic elements 28 in the opposite direction.

[0074] Specifically, each pull rope 27 extends into the cavity of the corresponding first linkage rod 211 and second linkage rod 212, with one end of the pull rope 27 extending to the end cap 213 and being pressed by the end cap 213 to the end of the second linkage rod 212. The other end of the pull rope 27 extends to the end of the first linkage rod 211 near the main rod 22 and is then inserted into the cavity 221 of the main rod through the first through hole 222 on the main rod 22. When a force is applied to the pull rope 27, the second linkage rod 212 can be moved closer to the first linkage rod 211, causing the linkage rod 21 to retract.

[0075] It should be noted that the first through hole 222 is opened at the end of the main rod 22 near the fire-receiving cloth 1. The purpose of doing so is to hide the pull rope 27 inside the main rod 22 as much as possible, so as to avoid the pull rope 27 moving in an exposed environment. In addition, there are four first through holes 222 that correspond one-to-one with the pull rope 27. The pull rope 27 also has a structure that continues to extend, which will be described below.

[0076] Specifically, the first elastic element 28 is a cylindrical spring, 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. Thus, during the contraction of the linkage rod 21, the first elastic element 28 is compressed and accumulates elastic potential energy. Once the force applied to the pull rope 27 is released, the first elastic element 28 restores its deformation, causing the second linkage rod 212 to move away from the first linkage rod 211, thus extending the linkage rod 21.

[0077] Please continue reading the appendix. Figure 1 ~Appendix Figure 2 and attached Figure 6 , attached Figure 6 For the appendix 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. Each rope control mechanism 3 includes a spiral spring 31. One end of the spiral 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 spiral spring 31 is greater than the restoring deformation force of the first elastic member 28. When set up in this way, without the intervention of external force, the restoring deformation force of the spiral spring 31 operates on the pull rope 27, causing the first elastic member 28 to be in a contracted state. The first elastic member 28 is in a compressed state, that is, the fire-receiving bucket is in a non-extended state.

[0078] Please continue reading the appendix. Figure 1 ~Appendix Figure 2 and attached Figure 6 Each rope control mechanism 3 includes a housing 32, and the four rope control mechanisms 3 have four housings 32 respectively. The four housings 32 are arranged sequentially along the extension direction of the main rod 22 at the end away from the fire-receiving cloth 1. Specifically, the housing 32 closest to the main rod 22 is connected to the main rod 22 by a thread. In other embodiments, welding, interference fit, screw connection, flange connection or other connection methods can also be selected. The remaining three housings 32 are connected to the previous housing 32 by screws. In addition, the lower end of the housing 32 furthest from the main rod 22 is also connected to a handle 4. The handle 4 is used to grip and facilitate the operation of the fire-receiving bucket. The handle 4 is provided with anti-slip pattern. The end of the handle 4 away from the housing 32 is also provided with a connecting seat 5. The connecting seat 5 is a U-shaped seat, which is welded to the handle 4 and can be fixed to the square steel of the construction site by screws.

[0079] Please continue reading the appendix. Figure 1 Appendix Figure 2 Appendix Figure 4 and attached Figure 6The structure of the pull rope 27 extending further will be described here. Specifically, after the pull rope 27 is inserted 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 one end near the rope control mechanism 3. Then, it extends out of the main rod cavity 221 through the second through hole 223 on the main rod 22, and then extends into the outer shell 32 through the third through hole 321 on the outer shell 32, connecting with the spiral spring 31 installed inside the outer shell 32. There are four second through holes 223 corresponding to the pull rope 27.

[0080] It should be noted that: please continue to refer to the appendix. Figure 6 Four third through holes 321 are provided on the outer shell 32 at BB. This is because the rope control mechanisms 3 are stacked in sequence. The rope control mechanism 3 at the bottom layer needs to have its corresponding pull rope 27 pass through four outer shells 32 in sequence before being inserted into the main rod cavity 221. The rope control mechanism 3 at the next lower layer needs to have its corresponding pull rope 27 pass through three outer shells 32 in sequence before being inserted into the main rod cavity 221, and so on. The rope control mechanism 3 at the top layer only needs to have its corresponding pull rope 27 pass through one outer shell 32 before being inserted into the main rod cavity 221. Therefore, the outer shell 32 at the top layer (i.e., the outer shell 32 at BB) needs to have four pull ropes 27, and therefore needs to have four third through holes 321. The outer shell 32 at the next upper layer needs to have three third through holes 321. The outer shell 32 at the next lower layer needs to have two third through holes 321. The outer shell 32 at the bottom layer needs to have one third through hole 321.

[0081] Additionally, for installation purposes, see attached... Figure 1 As shown, each outer shell 32 consists of two shells on both sides, which are fastened together to form a complete outer shell 32.

[0082] Please continue reading the appendix. Figure 6 ~Appendix Figure 7 , attached Figure 7 The diagram shows a three-dimensional view of the ring support. Each rope control mechanism 3 also includes a ring support 33, which is rotatably connected to the fire-receiving cloth 1. The spiral spring 31 is wound in the inner ring of the ring support 33, and one end of it passes through to the outer ring of the ring support 33 and is connected to the pull rope 27.

[0083] 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 inside 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, and a spiral spring 31 is placed on the inner ring of the annular bracket 33 on this side. One end of the spiral spring 31 is hung on the docking post 322, and a fixed connection is achieved with the outer shell 32.

[0084] In addition, a baffle 332 is provided on the outer ring of the ring bracket 33 to form an annular groove at the outer ring. The pull rope 27 is inserted into the outer shell 32 through the third through hole 321 and then wound around the annular groove.

[0085] Furthermore, the annular bracket 33 has a strip groove 333, and the rope control mechanism 3 also includes a connecting piece 34. The connecting piece 34 passes through the strip groove 333 and extends to the inner ring and outer ring of the annular bracket 33 at both ends. It is connected to the end of the spiral spring 31 away from the docking post 322 on the inner ring side and to the pull rope 27 on the outer ring side.

[0086] Please continue reading the appendix. Figure 1 ~Appendix Figure 2 Appendix Figure 7 ~Appendix Figure 8 , attached Figure 8 For the appendix Figure 2 In the cross-sectional view at CC, each rope control mechanism 3 also includes a ratchet cover plate 35 mounted on the side of the annular bracket 33, and a locking button 36 mounted on one side of the ratchet cover plate 35. The locking button 36 has teeth 361 that can engage with the ratchet teeth of the ratchet cover plate 35. The locking button 36 can be disengaged from the ratchet cover plate 35 by translating relative to the ratchet cover plate 35 under the action of an external force in one direction, and can be re-engaged from the ratchet cover plate 35 by translating relative to the ratchet cover plate 35 under the restoring deformation force of the second elastic member 37 in the opposite direction.

[0087] Specifically, the ratchet cover 35 is fastened to the open side of the annular bracket 33, and the ratchet 351 extends along the axial direction of the ratchet cover 35 on the side away from the closed end of the annular bracket 33. The teeth 361 on the locking button 36 lock the state of the ratchet 351, so that the state of the ratchet cover 35, the annular bracket 33, and the pull rope 27 can be locked at any time without the involvement of external force.

[0088] Additionally, a cylindrical groove 323 for accommodating the second elastic element 37 is provided inside the outer casing 32. One end of the locking button 36 extends out of the outer casing 32, while the other end extends through the ratchet cover plate 35 into the cylindrical groove 323. The second elastic element 37 is a cylindrical spring that is penetrated by the end of the locking button 36. When it is necessary to unlock the ring bracket 33 and the pull rope 27, the locking button 36 can be pressed continuously.

[0089] Please continue reading the appendix. Figure 1 ~Appendix Figure 2 Appendix Figure 9 , attached Figure 9 For the appendix Figure 2 In the cross-sectional view at DD, each rope control mechanism 3 also includes an annular knob 38, the inner annular surface of which is a ratchet annular surface, and the ratchet teeth of the ratchet cover plate 35 extend to engage with the ratchet annular surface.

[0090] Specifically, the annular knob 38 is fitted onto the ratchet 351 of the ratchet cover plate 35, and the annular knob 38 extends outside the outer casing 32. When the annular knob 38 is rotated by external force, the ratchet cover plate 35 and the annular bracket 33 can be rotated, releasing the pull rope 27. The linkage rod 21 extends under the recovery deformation of the first elastic element 28, and the spiral spring 31 deforms. When the external force on the annular knob 38 is removed, the locking button 36 locks the state of the annular bracket 33 and the pull rope 27. When it is necessary to retract the linkage rod 21, the locking button 36 is pressed continuously to unlock the annular bracket 33. 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 retracts, the first elastic element 28 retracts, and elastic potential energy is accumulated.

[0091] Other components of the portable construction site fire bucket according to embodiments of the present invention, such as movable stops and operation, are known to those skilled in the art and will not be described in detail here.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," 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 the invention. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0093] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A portable fire bucket for construction sites, characterized in that, The fire-receiving cloth includes a convex surface on one side and a concave surface on the other side when it is in the open state, and also includes a foldable frame connected to the convex side of the fire-receiving cloth, so that when the foldable frame is in the open state, it can be linked to the fire-receiving cloth to open, and when the foldable frame is in the folded state, it can be linked to the fire-receiving cloth to retract. The foldable frame includes a plurality of linkage rods, which are circumferentially distributed along the central axis of the fire-receiving cloth. One end of each linkage rod is rotatably connected relative to the fire-receiving cloth near the center of the fire-receiving cloth, and each linkage rod is connected to the fire-receiving cloth in its extending direction. The fire-receiving cloth includes a wrinkled and shrinkable area, and each of the linkage rods is a telescopic rod. The foldable frame also includes several pull ropes and several first elastic elements that correspond one-to-one with the several linkage rods, so that when the linkage rods are subjected to the pulling force of the pull ropes in one direction and the first elastic elements are subjected to the recovery deformation in the opposite direction, they can generate contraction and extension operations. Each linkage rod includes a first linkage rod near the center of the fire-receiving cloth and a second linkage rod near the edge of the fire-receiving cloth. The second linkage rod is sleeved on the first linkage rod. The first elastic element is placed in the inner cavity of the second linkage rod and abuts against 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 the end of the second linkage rod in sequence.

2. The portable fire bucket for construction sites according to claim 1, characterized in that, It also includes a plurality 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-receiving cloth, and the other end is connected to the pull rope. The restoring deformation force of the spiral spring is greater than the restoring deformation force of the first elastic element.

3. The portable fire-fighting bucket for construction sites according to claim 2, characterized in that, Each of the rope control mechanisms also includes an annular bracket, which is rotatably connected relative to the fire-receiving cloth. The spiral spring is wound in the inner ring of the annular bracket, and one end of it extends through the outer ring of the annular bracket and is connected to the pull rope.

4. The portable fire bucket for construction sites according to claim 3, characterized in that, Each of the rope control mechanisms further includes a ratchet cover plate mounted on the side of the annular bracket, and a locking button mounted on one side of the ratchet cover plate. The locking button has teeth that can engage with the ratchet teeth of the ratchet cover plate. The locking button can be disengaged from the ratchet cover plate by translating relative to it under the force of an external force applied in one direction, and can be re-engaged with the ratchet cover plate by translating relative to it under the restoring deformation force of a second elastic element in the opposite direction.

5. The portable fire bucket for construction sites according to claim 4, characterized in that, Each of the rope control mechanisms also includes an annular knob, the inner surface of which is a ratchet annular surface, and the ratchet teeth of the ratchet cover plate extend to engage with the ratchet annular surface.

6. The portable fire-fighting bucket for construction sites according to claim 2, characterized in that, The foldable frame also includes a main rod and a plurality of drive rods corresponding one-to-one with the linkage rod. One end of the main rod is fixedly connected to the center of the fire-receiving cloth, and a plurality of the control rope mechanisms are sequentially connected to the other end of the main rod. One end of the linkage rod near the center of the fire-receiving cloth is rotatably connected to the main rod, and one end of the drive rod is slidably connected to the main rod, and the other end is rotatably connected to the middle of the linkage rod.

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