A heat shield for fire rescue

Abstract

The utility model provides a kind of heat shield device for fire rescue, it is related to fire rescue technical field.The heat shield device for fire rescue, including device ontology, the waterproof gun export is opened in device ontology one side, waterproof gun export is adapted with spherical joint spare in, the through type placing groove is opened in spherical joint spare one side, the pin groove of circumferential array distribution is formed on the inner wall of placing groove;The heat shield device for fire rescue, by innovative design spherical joint connecting mechanism and multidimensional locking assembly, water gun can be realized certain pitch angle and horizontal rotation angle flexible adjustment at fire water gun export, firefighter need not to move shield whole or change station, it can be quickly adjusted water gun aiming at fire point, effectively cope with complex fire scene multiple, multi-directional fire source's extinguishing demand, greatly improve the precision of fire extinguishing operation, response speed and tactical flexibility, while reduce the exposure risk of firefighter in fierce area of fire.

Description

Technical Field

[0001] This utility model relates to a heat insulation and protection device for fire rescue, specifically a heat insulation and protection device for fire rescue, belonging to the field of fire rescue technology. Background Technology

[0002] With the rapid development of urban modernization, fire types are becoming increasingly complex and diverse, and fire scene environments are constantly changing, placing higher demands on the functionality and flexibility of fire rescue equipment. During firefighting operations, firefighters often need to use protective shields as cover while simultaneously mounting fire hoses on the shields to spray and extinguish the fire. However, the existing fire hose mounting structures on fire rescue shields are mostly fixed-outlet designs. Once the hose is set up, its spray direction is limited to a single angle, making it impossible to quickly and flexibly adjust the angle according to the location of the fire source, its spread direction, or the tactical needs of the firefighters. This severely restricts firefighting efficiency and tactical flexibility.

[0003] Existing fire rescue shield water gun installation methods generally adopt simple opening or clamping structures. Although these can fix the water gun, they sacrifice the adjustability of the spray angle. In actual operation, if firefighters need to adjust the water gun spray direction, they often have to move the shield as a whole or change their own position. This is not only cumbersome and slow to respond, but also increases the risk of firefighters being exposed in the narrow space where the fire is raging, affecting the continuity and safety of firefighting operations.

[0004] For example, the patent (CN221998721U) has the above-mentioned problem: it describes "a multi-functional fire-fighting heat-insulating protective shield, including a protective plate; the main protective plate has a fire hose outlet on the lower side of the main viewing window, and a pair of slotted plates for clamping the fire hose are installed in the fire hose outlet. The two slotted plates are respectively connected to the two sides of the fire hose outlet by spring a, and the middle of the pair of slotted plates together form a clamping hole for the fire hose to pass through." Although the above patent achieves clamping and fixing of different types of fire hoses through springs and slotted plates, the fire hose outlet itself is a fixed opening structure, and the slotted plates can only provide radial clamping force. It cannot enable the fire hose to achieve multi-dimensional angle adjustment such as pitch and horizontal rotation at the outlet, resulting in a single direction of fire hose discharge. It is difficult to cope with the fire-fighting needs of multiple points and multiple directions of fire sources in complex fire scenes, and the fire-fighting efficiency and tactical adaptability are still greatly limited.

[0005] In response to the aforementioned problems such as the non-adjustable installation angle of fire rescue shield water guns, the single spray direction, and the inconvenience of adjustment, there is an urgent need for a fire rescue heat insulation and protection device that can achieve flexible adjustment of water guns with multiple degrees of freedom. This device would not only ensure the safety of firefighters but also improve the flexibility and accuracy of water gun firefighting, thus achieving efficient and safe modern fire rescue. Utility Model Content

[0006] (a) Technical problems to be solved The purpose of this utility model is to provide a heat insulation and protection device for fire rescue in order to solve the above-mentioned problems, thereby addressing the issue of poor practicality of existing heat insulation and protection devices for fire rescue.

[0007] (II) Technical Solution This utility model is achieved through the following technical solution: a heat insulation and protection device for fire rescue, comprising a device body, a waterproof gun outlet on one side of the device body, a spherical joint fitting adapted inside the waterproof gun outlet, a through-type placement groove on one side of the spherical joint fitting, pin grooves distributed in a circumferential array formed on the inner wall of the placement groove, a pin block slidably disposed in the pin groove, a spring being disposed between one end of the pin block and the inner end face of the pin groove, and an adjusting component for adjusting the storage of the pin block being disposed on the spherical joint fitting.

[0008] Preferably, the adjusting component includes a rotating tube rotatably connected to the placement groove, and a through-type adjusting port is provided on the outer side of the rotating tube at a corresponding position relative to each pin groove, and inclined slopes are provided on both sides of the pin block.

[0009] Preferably, the device body includes a protective plate, and side protective plates are fixedly connected to both ends of the protective plate. A through window is opened on one side of both the protective plate and the side protective plate, and a transparent plate is installed at the window.

[0010] Preferably, the bottom of the protective plate is provided with a linear array of sliding grooves, and a pulley is rotatably connected inside the sliding groove. The bottom of the side protective plate is provided with a caster wheel mechanism.

[0011] Preferably, a shaft groove is formed on one side of the sliding groove, and an installation groove is formed on the end face of the bearing. A ratchet is rotatably connected to the inner wall of the installation groove. A shaft is fixedly connected between one side of the ratchet and the corresponding pulley. The shaft is rotatably disposed in the shaft groove. A wire groove is formed on the top wall inside the installation groove. A limit rod is provided in the wire groove. A square groove is formed at the bottom of the limit rod. A square rod is slidably disposed in the square groove. A pawl that cooperates with the ratchet is fixedly provided at the bottom end of the square rod. A spring is provided between the top end of the square rod and the top end face of the square groove.

[0012] Preferably, a wire rod is fixedly connected to the top of the limiting rod, the wire rod has an external thread on its outer side, and a threaded sleeve is threaded onto the wire rod through the external thread. A through-type rotating groove is formed at the corresponding position of the wire groove relative to the threaded sleeve, and the threaded sleeve is rotatably connected to the bottom wall inside the rotating groove.

[0013] Preferably, the square groove includes a through opening, a coarse groove, and a fine groove that are connected sequentially from bottom to top, and the square rod includes a coarse rod and a fine rod that are fixedly connected to each other. The coarse rod is slidably disposed in the coarse groove, and the fine rod is slidably disposed in the through opening. A pawl is fixedly disposed at the end of the fine rod away from the coarse rod.

[0014] Preferably, a through-hole threaded hole is provided on the top wall inside the placement groove, and a screw is threadedly connected inside the threaded hole. Multiple limiting grooves distributed in a circumferential array are provided on the outer side of the rotating tube, and the bottom end of the screw cooperates with the limiting groove.

[0015] This utility model provides a heat insulation and protection device for fire rescue, which has the following beneficial effects: 1. This fire rescue heat insulation and protection device, through the innovative design of a ball joint connection mechanism and multi-dimensional locking components, enables the water gun to be flexibly adjusted at a certain pitch angle and horizontal rotation angle at the water gun outlet. Firefighters can quickly adjust the water gun to aim at the fire point without moving the entire shield or changing their position. This effectively meets the fire fighting needs of multiple points and multiple directions of fire sources in complex fire scenes, greatly improving the accuracy, response speed and tactical flexibility of fire fighting operations, while reducing the exposure risk of firefighters in areas with fierce fires.

[0016] 2. This fire rescue heat insulation and protection device adopts an adaptive elastic clamping and quick-plug locking structure. It is equipped with an elastic groove plate with a guide slope and an automatic locking buckle inside the fire hose outlet. Firefighters can push the water hose in along the guide slope with one hand. The groove plate automatically clamps the water hose body under the action of spring force, and the locking buckle automatically engages to complete the fixation. This design not only realizes the quick assembly and disassembly of the water hose and stable clamping, but also frees the firefighter's hands, allowing them to focus on aiming and attitude control, which significantly improves the efficiency of equipment deployment and the stability of fire fighting operations.

[0017] 3. This fire and rescue heat-insulating protective device integrates a one-way clutch and braking dual-mode switching device into a traditional universal wheel mechanism. Through the cooperation of ratchet and pawl, it allows the shield to move forward while preventing it from moving backward, effectively resisting the recoil of the water gun and the effects of slope. By further adjusting the height of the limit rod, the thick rod is pressed against the top wall inside the coarse groove, thus preventing the pawl from rising and disengaging from the ratchet, thereby completely locking the pulley. Conversely, raising the limit rod completely disengages the pawl from the ratchet, thus removing the restriction on the pulley, allowing it to roll freely back and forth, facilitating rapid relocation and flexible deployment. This design allows firefighters to adjust the shield's movement in real time according to tactical needs, ensuring stability during advancement and safety during positional defense, significantly improving the equipment's environmental adaptability and combat effectiveness. Attached Figure Description

[0018] Figure 1This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a three-dimensional cross-sectional view of the protective plate of this utility model; Figure 3 This is a three-dimensional cross-sectional view of the ball joint component of this utility model; Figure 4 This is a three-dimensional schematic diagram of the ratchet and pulley of this utility model.

[0019] [Explanation of Key Component Symbols] 1. Device body; 101. Protective plate; 102. Side protective plate; 103. Transparent plate; 2. Waterproof gun outlet; 3. Ball joint; 4. Placement slot; 5. Pin slot; 6. Pin block; 7. Adjusting component; 71. Rotary tube; 72. Adjustment port; 8. Pulley; 9. Universal wheel mechanism; 10. Ratchet; 11. Limiting rod; 12. Square slot; 121. Through port; 122. Coarse slot; 123. Fine slot; 13. Square rod; 131. Coarse rod; 132. Fine rod; 14. Threaded sleeve; 15. Screw; 16. Limiting slot. Detailed Implementation

[0020] This utility model provides a heat insulation and protection device for fire rescue.

[0021] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a main body 1, a waterproof gun outlet 2 on one side of the main body 1, a ball joint 3 adapted inside the waterproof gun outlet 2, a through-type placement groove 4 on one side of the ball joint 3, pin grooves 5 arranged in a circular array on the inner wall of the placement groove 4, a pin block 6 slidably disposed in the pin groove 5, a spring 1 disposed between one end of the pin block 6 and the inner end face of the pin groove 5, and an adjusting component 7 for adjusting the placement of the pin block 6 disposed on the ball joint 3. Specifically, the pin 6 needs to be matched with a water gun nozzle of a specific shape. The water gun nozzle needs to have an annular groove opened or formed on its outer side. The movable end of the pin 6 is inserted into the annular groove. The outer diameter of the water gun nozzle is smaller than the inner diameter of the rotating tube 71. In this way, the water gun nozzle is fixed in the ball joint 3 by using the mutual blocking between the inner wall of the annular groove and the pin 6. Specifically, the protective plate 101 and the side protective plate 102 are hinged together by a high-strength stainless steel hinge. The hinge allows for adjustment of the included angle range and is fixed in place by bolts. This hinged structure solves the problem of the traditional welded fixed angle being non-adjustable, allowing the shield to flexibly adjust the protection angle on both sides according to the width of the tunnel and the fire environment, ensuring the side protection range while avoiding excessive width that would affect passage.

[0022] The main protective plate 101 adopts a double-layer hollow structure, consisting of an inner plate and an outer plate. Both the inner and outer plates are made of stainless steel plates, laser-cut and bent, with the outer surface sandblasted and then coated with a fire-retardant coating. A heat-insulating interlayer is formed between the inner and outer plates by welded reinforcing ribs. These ribs are arranged in a grid pattern of stainless steel square tubing, ensuring structural strength while also creating coolant flow channels. A circulating water bag is placed within the heat-insulating interlayer. The water bag is made of a high-temperature resistant polymer film using a heat-sealing process, providing high temperature resistance and structural stability. The water bag is bonded and fixed to the inner and outer plates using high-temperature resistant silicone adhesive to prevent shaking and wear. The water bag is filled with antifreeze coolant, effectively absorbing heat even in winter or in extremely high-temperature fire environments. A stainless steel quick-connect fitting is located at the bottom of the water bag as a coolant exchange port, passing through a through-hole at the bottom of the inner plate and locked with double nuts, along with a sealing gasket to ensure no leakage.

[0023] Example 2, please refer to Figure 1 and Figure 3 The adjusting component 7 includes a rotating tube 71, which is rotatably connected to the placement groove 4. A through-type adjusting port 72 is provided on the outer side of the rotating tube 71 and at the corresponding position of each pin groove 5. Inclined slopes are provided on both sides of the pin block 6. Specifically, the water gun outlet 2 is a circular hole with a semi-circular stainless steel protective ring welded to the edge of the hole to prevent scratching the surface when the water gun is pushed forward; the spherical joint 3 consists of a ball socket and a ball head; the ball socket is made of high-strength copper alloy casting, which has high structural strength and wear resistance; the outer flange of the ball socket has evenly distributed mounting holes, which are fixed to the inner surface of the protective plate 101 by stainless steel hexagonal bolts, with the bolt heads recessed into the flange countersunk holes and spot-welded to prevent loosening; a heat insulation pad is placed between the ball socket and the protective plate 101 to prevent heat conduction to the ball head; the ball head is made of the same material as the ball socket, which has high hardness and wear resistance; a stepped hole is opened in the center of the ball head for the fire gun to pass through, and rectangular grooves are symmetrically opened on the inner wall of the stepped hole, with guide holes machined in the groove walls to communicate with the outside. High-temperature grease is filled between the outer surface of the ball head and the inner surface of the ball socket to ensure flexible and non-jamming rotation under the high temperature of the fire scene.

[0024] Example 3, please refer to Figure 1 The device body 1 includes a protective plate 101, and side protective plates 102 are fixedly connected to both ends of the protective plate 101. A through window is opened on one side of both the protective plate 101 and the side protective plate 102, and a transparent plate 103 is installed at the window. Specifically, pulley 8 is injection molded from high-temperature resistant nylon, possessing high load-bearing capacity and wear resistance. A stainless steel bearing is embedded in the wheel core, and the bearing is connected to the universal wheel mechanism 9 via a stainless steel axle. The universal wheel mechanism 9 includes a wheel frame and a steering bearing seat. The wheel frame is made of stainless steel plate, stamped and welded into a U-shaped structure, with a mounting plate welded to the top. The steering bearing seat contains a planar thrust bearing and a deep groove ball bearing, connected to the bottom of the protective plate 101 via stainless steel bolts, allowing the wheel frame to rotate 360 ​​degrees horizontally, enabling flexible steering of the shield. Ratchet 10 is integrated into the hub of pulley 8, forming a single injection-molded structure with asymmetrical sawtooth teeth. A pawl is hinged to the wheel frame via a pin, and a torsion spring is fitted on the pin, ensuring the pawl always tends to engage with ratchet 10. When the pawl engages with ratchet 10, pulley 8 can only roll forward; when rotating in the opposite direction, the pawl locks the ratchet teeth, reliably resisting the recoil of the water gun.

[0025] Example 4, please refer to Figure 1 The bottom of the protective plate 101 is provided with linearly arrayed sliding grooves, and the sliding grooves are rotatably connected with pulleys 8. The bottom of the side protective plate 102 is provided with a universal wheel mechanism 9. Specifically, square rod 13 is a stepped cuboid.

[0026] Example 5, please refer to Figure 1 , Figure 2 and Figure 4 The sliding groove has a shaft groove formed on one side, and the bearing has an installation groove formed on one end face. A ratchet 10 is rotatably connected to the inner wall of the installation groove. A shaft is fixedly connected between one side of the ratchet 10 and the corresponding pulley 8. The shaft is rotatably set in the shaft groove. A wire groove is opened on the top wall inside the installation groove. A limit rod 11 is set in the wire groove. A square groove 12 is opened at the bottom of the limit rod 11. A square rod 13 is slidably set in the square groove 12. A pawl that cooperates with the ratchet 10 is fixedly set at the bottom end of the square rod 13, and a spring is set between the top end of the square rod 13 and the top end face of the square groove 12.

[0027] Example 6, please refer to Figure 2 and Figure 4 The top of the limiting rod 11 is fixedly connected to a wire rod, the outside of the wire rod is provided with an external thread, and the wire rod is provided with a threaded sleeve 14 through the external thread. The wire groove is formed with a through-type rotating groove at the corresponding position of the threaded sleeve 14, and the threaded sleeve 14 is rotatably connected to the bottom wall inside the rotating groove.

[0028] Example 7, please refer to Figure 2 and Figure 4The square groove 12 includes a through opening 121, a coarse groove 122, and a fine groove 123 that are connected sequentially from bottom to top. The square rod 13 includes a coarse rod 131 and a fine rod 132 that are fixedly connected to each other. The coarse rod 131 is slidably disposed in the coarse groove 122, and the fine rod 132 is slidably disposed in the through opening 121. A pawl is fixedly disposed at the end of the fine rod 132 away from the coarse rod 131.

[0029] Example 8, please refer to Figure 3 A through-hole threaded hole is provided on the top wall inside the placement slot 4. A screw 15 is threadedly connected inside the threaded hole. Multiple limiting slots 16 distributed in a circular array are provided on the outside of the rotating tube 71. The bottom end of the screw 15 cooperates with the limiting slot 16.

[0030] Working principle: When firefighters arrive at the designated location at the fire scene, they insert the tail of the fire hose into the rotating pipe 71 and then rotate the rotating pipe 71 so that the adjusting port 72 on the rotating pipe 71 is aligned with the opening of the pin groove 5. At this time, the pin block 6 is partially slid out of the pin groove 5 by the elastic force of the spring and inserted into the annular groove on the fire hose, thus completing the fixation of the fire hose. When disassembling, firefighters only need to manually rotate the rotating pipe 71 so that the adjusting port 72 on the rotating pipe 71 is misaligned with the corresponding opening of the pin groove 5. The inner wall of the adjusting port 72 will squeeze the inclined surface of the pin block 6 and cause the pin block 6 to disengage from the annular groove and slide completely into the pin groove 5, while compressing the spring.

[0031] After installation, the fire hose reel is movably connected to the main body 1 via a spherical joint 3. This spherical joint 3 allows for free tilting and horizontal rotation within a certain range within the fire hose reel outlet 2. While stabilizing the shield using the vertical handle behind it, the firefighter can hold the fire hose with both hands to adjust its direction. The spherical joint 3 rotates within the fire hose reel outlet 2, changing the direction of the water jet. Once adjusted, the firefighter maintains a stable posture through the weight of the hose and the clamping friction of the pin 6, achieving directional spraying without the need for an additional locking mechanism. This effectively addresses multiple fire sources of varying heights and distribution in complex fire scenes.

[0032] Once the shield, or device body 1, is stably placed, and it is necessary to move device body 1 forward while avoiding the device body 1 from moving backward due to the back thrust of the water flow, the threaded sleeve 14 can be manually rotated to adjust the height of the limit rod 11 and make the pawl just engage in the tooth groove of the ratchet 10. At this time, through the elastic force of the spring 2, the pawl and ratchet 10 work together to make the ratchet 10 and pulley 8 rotate only in one direction. The direction of the unidirectional rotation can ensure that device body 1 moves forward stably. When it is necessary to lock the pulley 8, simply rotate the threaded sleeve 14 manually to lower the limit rod 11 to its lowest height. At this time, the top of the thick rod 131 contacts the top wall inside the coarse groove 122, and the spring 2 is compressed and located inside the coarse groove 122.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat insulation and protection device for fire rescue, comprising a device body (1), characterized in that: The device body (1) has a waterproof gun outlet (2) on one side. A ball joint (3) is adapted inside the waterproof gun outlet (2). A through-type placement groove (4) is opened on one side of the ball joint (3). A pin groove (5) with a circumferential array is formed on the inner wall of the placement groove (4). A pin block (6) is slidably arranged in the pin groove (5). A spring is provided between one end of the pin block (6) and the inner end face of the pin groove (5). An adjusting member (7) for adjusting the pin block (6) is provided on the ball joint (3).

2. The heat insulation and protection device for fire rescue according to claim 1, characterized in that: The adjusting component (7) includes a rotating tube (71), which is rotatably connected to the placement groove (4). A through-type adjusting port (72) is provided on the outside of the rotating tube (71) and at the corresponding position of each pin groove (5). Inclined slopes are provided on both sides of the pin block (6).

3. The heat insulation and protection device for fire rescue according to claim 1, characterized in that: The device body (1) includes a protective plate (101), and side guard plates (102) are fixedly connected to both ends of the protective plate (101). A through window is opened on one side of both the protective plate (101) and the side guard plate (102), and a transparent plate (103) is installed at the window.

4. A heat insulation and protection device for fire rescue according to claim 3, characterized in that: The bottom of the protective plate (101) is provided with sliding grooves arranged in a linear array, and a pulley (8) is rotatably connected inside the sliding groove. The bottom of the side protective plate (102) is provided with a universal wheel mechanism (9).

5. A heat insulation and protection device for fire rescue according to claim 1, characterized in that: A shaft groove is formed on one side of the sliding groove, and an installation groove is formed on the end face of the bearing. A ratchet (10) is rotatably connected to the inner wall of the installation groove. A shaft is fixedly connected between one side of the ratchet (10) and the corresponding pulley (8). The shaft is rotatably set in the shaft groove. A wire groove is opened on the top wall inside the installation groove. A limit rod (11) is set in the wire groove. A square groove (12) is opened at the bottom of the limit rod (11). A square rod (13) is slidably set in the square groove (12). A pawl that cooperates with the ratchet (10) is fixedly set at the bottom end of the square rod (13), and a spring is set between the top end of the square rod (13) and the top end face of the square groove (12).

6. A heat insulation and protection device for fire rescue according to claim 5, characterized in that: The top of the limiting rod (11) is fixedly connected to a wire rod, the wire rod is provided with an external thread, and the wire rod is provided with a threaded sleeve (14) through the external thread. A through-type rotating groove is formed at the corresponding position of the wire groove relative to the threaded sleeve (14), and the threaded sleeve (14) is rotatably connected to the bottom wall inside the rotating groove.

7. A heat insulation and protection device for fire rescue according to claim 5, characterized in that: The square groove (12) includes a through opening (121), a coarse groove (122) and a fine groove (123) that are connected sequentially from bottom to top. The square rod (13) includes a coarse rod (131) and a fine rod (132) that are fixedly connected to each other. The coarse rod (131) is slidably disposed in the coarse groove (122), and the fine rod (132) is slidably disposed in the through opening (121). A pawl is fixedly disposed at the end of the fine rod (132) away from the coarse rod (131).

8. A heat insulation and protection device for fire rescue according to claim 2, characterized in that: The top wall inside the placement groove (4) is provided with a through threaded hole, and a screw (15) is threadedly connected inside the threaded hole. Multiple limiting grooves (16) are provided on the outside of the rotating tube (71) in a circumferential array. The bottom end of the screw (15) is engaged with the limiting groove (16).

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