Auxiliary frame for fire-fighting lance

Abstract

The utility model discloses an auxiliary frame for a fire-fighting lance, which relates to the field of fire-fighting emergency devices and comprises a lance holder for fixing the fire-fighting lance. The clamp comprises a lower semi-circular clamp and an upper semi-circular clamp which is opened and closed relative to the lower semi-circular clamp. The steering shaft connecting mechanism comprises an upper rotating shaft, a locking seat and a lower rotating shaft; the upper part of the upper rotating shaft is connected with the lower semicircular clamp; the bottom ball head of the upper rotating shaft is arranged in the locking seat and is embedded into the U-shaped groove of the lower rotating shaft; the main structure box body comprises a main structure box body shell and a second worm gear which is mounted on one side of the main structure box body shell and is connected with the lower rotating shaft; the second worm gear is connected with a second worm shaft; the second worm-wheel shaft rotates to drive the second worm-wheel gear to rotate and enable the steering shaft connecting mechanism to rotate; the physical labor consumption of combatants of commanders and fighters in a fixed disaster scene is eliminated or reduced; and meanwhile, the fire extinguishing agent is ejected through the auxiliary water gun fixing position frame, so that the safety risk and the accidental injury risk are avoided.

Description

Technical Field

[0001] The utility model relates to the field of fire emergency devices, in particular to a fire water gun auxiliary frame. Background Art

[0002] Fire hoses are very important tools in firefighting operations. They are connected to fire hoses and are used to efficiently spray fire extinguishing agents. These water guns can be mainly divided into direct current, spray, water curtain, foam and multi-function water guns according to the form and function of the jet. Direct current water guns can shoot strong water streams and are suitable for long-distance firefighting; spray water guns use fine water droplets to help lower the surrounding temperature and prevent the spread of fire; water curtain water guns are used to create a water curtain to block the spread of heat radiation or harmful gases; foam water guns are mainly used to extinguish oil or flammable liquid fires.

[0003] Although fire hoses are diverse and powerful, existing auxiliary hose mounting brackets are usually simple in structure and function, and are not sufficient to adapt to diverse building structures and environments. This lack of full adaptability limits the application of fire hoses in multiple scenarios. For example, the brackets often do not have 360-degree rotation adjustment capabilities and lack high-precision angle adjustment functions. These limitations not only bring great inconvenience to firefighters during operation, but also affect the efficiency and safety of police rescue.

[0004] In addition, in order to adapt to different structural environments, the fire department has to increase investment and purchase a variety of different auxiliary brackets or related equipment. This not only increases the procurement cost, but also makes daily maintenance work more complicated and costly. Therefore, for the research and development of modern fire equipment, it is particularly important to develop a fire hose auxiliary rack with high adaptability and flexibility. Utility Model Content

[0005] The purpose of the utility model is to provide a fire hose auxiliary stand to solve the problem that the above-mentioned background technology bracket often does not have the ability to rotate and adjust, which not only brings great inconvenience to firefighters during operation, but also affects the efficiency and safety of police rescue.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-fighting water gun auxiliary frame, comprising a water gun clamp for fixing the fire-fighting water gun; the water gun clamp comprises a lower semicircular clamp and an upper semicircular clamp opened and closed relative to the lower semicircular clamp;

[0007] A connecting steering shaft mechanism comprises an upper rotating shaft, a locking seat and a lower rotating shaft; the upper portion of the upper rotating shaft is connected to the lower semicircular clamp; the bottom ball head of the upper rotating shaft is arranged in the locking seat and embedded in the U-shaped groove of the lower rotating shaft;

[0008] The main structure box body comprises a main structure box body shell and a second worm gear installed on one side of the main structure box body shell and connected to the lower rotating shaft; the second worm gear is connected to a second worm gear shaft; the rotation of the second worm gear shaft drives the second worm gear to rotate and causes the connecting steering shaft mechanism to rotate.

[0009] As a further improvement of the above scheme, the main structure box also includes a first worm gear shaft, a first worm gear, a sprocket, and a sprocket shaft; the first worm gear shaft is connected to the first worm gear; the first worm gear is connected to the sprocket shaft through a third worm gear shaft; and the sprocket is connected to the sprocket shaft.

[0010] As a further improvement of the above scheme, the third worm gear shaft and the sprocket shaft are connected to each other with inner shaft and outer shaft; when one end of the sprocket shaft is connected to the third worm gear shaft, a round shaft to square shaft transition method is adopted, and the other end of the sprocket shaft is driven by helical gear coupling.

[0011] As a further improvement of the above scheme, the main structure box also includes a main structure box cover plate 1, a copper pad and a main structure box cover plate 2; the main structure box cover plate 1 is installed on the main structure box shell and is located on one side of the first worm gear shaft; the copper pad is installed on the first worm gear shaft, and the main structure box cover plate 2 is installed on the main structure box shell and is located on one side of the second worm gear.

[0012] As a further improvement of the above scheme, it also includes a clamping device connected to the bottom of the main structure box, the clamping device includes a clamping sliding hook, a clamping sliding guide rail and a clamping fixed hook; the clamping sliding guide rail is provided with a slot, the clamping sliding hook is installed in the slot and is connected to the sprocket through a double-row fastening chain end connecting block; the clamping fixed hook is installed on the clamping sliding guide rail and away from the side of the clamping sliding hook.

[0013] As a further improvement of the above scheme, it also includes a land support, which includes a support quick-connect top plate, support legs and a counterweight water tank; the support quick-connect top plate is connected to the main structure box body by bolts; the support legs are installed at the lower part of the support quick-connect top plate, and the counterweight water tank is installed at the lower part of the support quick-connect top plate and connected to the support legs.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Firstly, the utility model firstly realizes that various models of water gun holders can be interchangeably connected with the connecting steering shaft mechanism, thereby realizing the installation and setting of various models of fire-fighting water guns.

[0016] Secondly, the tightening and rotation adjustment of the utility model adopts a worm gear drive structure. The designed worm gear tightening mechanism realizes the maximum torque output of the tightening tension, and the rotation adjustment of the worm gear structure realizes precise micro-control adjustment of the angle. At the same time, it cooperates with the 360-degree rotation of the steering shaft mechanism and the 90-degree angle adjustment of the water gun clamp to meet the installation of fire water guns within 90 degrees to the left and right after lateral installation, avoiding the adverse effects brought by various unfavorable installation environments and achieving the purpose of all-round and multi-space installation.

[0017] Third, the utility model equipment uses mature fastening and connection methods, fully utilizes the powerful clamping and winding tightening force of the equipment body itself, and utilizes the ductility and contraction of the double-row fastening chain to meet the requirements of bundling and erecting various large and small structural parts. By connecting with the clamping device, the clamping and erection of cement or brick-concrete wall heads is realized. At the same time, it can also be used for the clamping and erection of steel structure railings, profile panels with a surface width of more than 150mm, and columns. It is simple to use and easy to operate.

[0018] Fourth, the utility model equipment uses a land support to achieve the installation on the land. The support design structure is split, which can be freely stored to reduce the occupied space. While making full use of the structural stability advantage of the support itself, a counterweight water tank is added to increase the stability of the fire-fighting water gun under the large recoil of the fire-fighting agent. The counterweight water tank can also be directly filled with sand as a counterweight.

[0019] Fifth, after the main structure box of the utility model equipment is combined with the connecting steering shaft mechanism, the maximum length is 280mm, the width is 150m, and the height is 290mm. Because most of the materials are made of aluminum alloy, it has the characteristics of small size and light weight, and is extremely convenient to operate, use and carry.

[0020] Sixth, all the rotating transmission intersection fixed points of the equipment of the utility model are installed with high-precision bearings, which completely avoids the generation of friction resistance, makes the operation of the entire rotating mechanism light, fast and labor-saving, and minimizes the physical effort during use.

[0021] Seventh, when the utility model equipment is not used for setting up water gun positions, it can use its own chain fastening method and cooperate with other tools to achieve bundling or pulling operations in horizontal, vertical and oblique pulling states. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model in the daily standby state.

[0023] Figure 2 It is a schematic diagram of the overall structure of the utility model for steel structures and cement columns.

[0024] Figure 3It is a schematic diagram of the overall structure of the utility model used under the land plane.

[0025] Figure 4 This is a schematic diagram of the structure of a water gun holder of the utility model.

[0026] Figure 5 It is a schematic diagram of the upper semicircular card structure of the utility model.

[0027] Figure 6 It is a schematic diagram of the lower semicircular card structure of the utility model.

[0028] Figure 7 The utility model is a schematic diagram of the structure of the connecting steering shaft mechanism.

[0029] Figure 8 This is a schematic diagram of the main structural box structure of the utility model.

[0030] Fig. 9 This is a schematic structural diagram of the main structural box of the utility model from another perspective.

[0031] Fig.10 It is a structural schematic diagram of the main structure box cover plate 1 of the utility model.

[0032] Fig.11 This is a schematic diagram of the main structural box shell structure of the utility model.

[0033] Fig.12 This is a schematic diagram of the second structure of the main structure box cover of the utility model.

[0034] Fig.13 This is a schematic diagram of the structure of the clamping device of the utility model.

[0035] Fig.14 This is a schematic diagram of the land support structure of the utility model.

[0036] In the figure: 1. water gun holder; 1-1. upper semicircle clamp; 1-2. lower semicircle clamp; 2. connecting steering shaft mechanism; 2-1. upper rotating shaft; 2-2. locking seat; 2-3. lower rotating shaft; 3. main structure box; 3-1. first worm gear shaft; 3-2. first worm gear; 3-3. main structure box shell; 3-4. main structure box cover plate 1 3-4; 3-5. second worm gear shaft; 3-6. second worm gear; 3-7. sprocket; 3-8. copper pad; 3-9. third worm gear shaft; 3-10. sprocket shaft; 3-11. main structure box cover plate 2; 4. clamping device; 4-1. clamping sliding hook; 4-2. clamping sliding guide rail; 4-3. clamping fixed hook; 5. land support; 5-1. support quick-connect top plate; 5-2. support leg; 5-3. counterweight water tank. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figure 1-3 As shown, the utility model provides a fire hose auxiliary frame, including a hose clamp 1, connecting a steering shaft mechanism 2 and a main structure box 3, a clamping device 4 and a land support 5. The fire hose auxiliary frame can eliminate or reduce the physical labor consumption of officers and soldiers in fixed disaster fire scenes. By installing the auxiliary hose fixed position to spray the fire extinguishing agent, personnel can directly evacuate to the rear of the scene to avoid safety risks and the risk of accidental injury; at the same time, it can realize the clamping, winding and fixing installation on various structural components of structures, such as wall heads, railings, concrete columns, various shapes of steel structure columns and beams, pipelines, etc. At the same time, in order to maximize its application ability, a ground quick-combination support device is added to realize the application on the land surface. After installation, one person can adjust and operate multiple fire hoses at the same time.

[0039] like Figure 1 As shown, in the daily standby state, the water gun holder 1, the connecting steering shaft mechanism 2, and the main structure box 3 are in a combined state; the water gun holder 1 and the connecting steering shaft mechanism 2 are connected by fine threads, and the connecting steering shaft mechanism 2 and the main structure box 3 are connected by an insert key, and the upper and lower ends are fixed with O-type elastic retaining rings to prevent the shaft from being strung. In this state, it can be directly used to set up fire water guns on steel structures and cement columns, various pipelines, steel beams and railings.

[0040] like Figure 2 As shown, the water gun clamp 1, the connecting steering shaft mechanism 2, and the main structure box 3 are fastened to the clamping device 4 with bottom bolts in the combined state. In this state, it can be directly used to set up fire water guns on steel structures and concrete columns, steel beams with a width of more than 150mm, wall heads and railings.

[0041] like Figure 3 As shown, the water gun clamp 1, the connecting steering shaft mechanism 2, the main structure box 3, and the clamping device 4 are in an assembled state and are fastened to the land support 5 by bolts at both ends. This state is suitable for setting up fire water guns on the land plane.

[0042] like Figure 4-6As shown, the water gun holder 1 includes an upper semicircular card 1-1 and a lower semicircular card 1-2, the upper semicircular card 1-1 and the lower semicircular card 1-2 are made of S304 stainless steel, and the upper semicircular card 1-1 and the lower semicircular card 1-2 are equivalent to two semicircular components, and the shaft holes and bolt holes for connection and fastening are processed at the butt ends respectively, and the high-strength shaft pin is used for anchor connection, which can be opened and closed freely, and the open end is fastened with a hexagon socket bolt, and the bottom of the lower semicircular card 1-2 is processed with an inner hole thread according to the steering shaft diameter to connect with the steering shaft mechanism 2. Water gun holder 1; when in use, the corresponding aperture holder can be replaced according to the different quick-connect buckles used for connecting the fire water gun, and the commonly used design models are DN65 and DN80.

[0043] like Figure 7 As shown, the connecting steering shaft mechanism 2 includes three main components: an upper rotating shaft 2-1, a locking seat 2-2 and a lower rotating shaft 2-3. The material is 45# steel, and the steel is quenched and tempered after machining to prevent rust. Specifically, the bottom ball head of the upper rotating shaft 2-1 and the upper U-shaped groove of the lower rotating shaft 2-3 are equal diameter zero-matching sphere and groove structures, the lower rotating shaft 2-3 and the locking seat 2-2 inner hole are processed with the same specification of internal and external threads for connection, the top of the inner hole of the locking seat 2-2 is processed with a contact concave surface of equal diameter zero-matching with the upper rotating shaft 2-1 and the lower rotating shaft 2-3, and the upper rotating shaft 2-1 and the lower rotating shaft 2-3 are wrapped by the locking seat 2-2 when in use, so as to achieve the purpose of changing and fixing different angles within 90 degrees. When in use, the connecting steering shaft mechanism 2 drives the rotation of the entire connecting steering shaft mechanism 2 through the second worm gear 3-6 of the main structure box 3 to achieve 360-degree rotation.

[0044] like Figure 8-12 As shown, the main structure box 3 includes a first worm gear shaft 3-1, a first worm gear 3-2, a main structure box shell 3-3, a main structure box cover plate 1 3-4, a second worm gear shaft 3-5, a second worm gear 3-6, a sprocket 3-7, a copper pad 3-8, a third worm gear shaft 3-9, a sprocket shaft 3-10, and a main structure box cover plate 2 3-11.

[0045] Specifically, the first worm gear shaft 3-1, the first worm gear 3-2, the second worm gear shaft 3-5, the second worm gear 3-6, the sprocket 3-7, the third worm gear shaft 3-9, and the sprocket shaft 3-10 are made of 45# steel, the copper pad 3-8 is made of brass, and the main structure box shell 3-3, the main structure box cover plate 1 3-4 and the structure box cover plate 2 3-11 are made of high-strength aluminum alloy. Among them, the first worm gear shaft 3-1, the first worm gear 3-2, the second worm gear shaft 3-5, and the second worm gear 3-6 are manufactured according to the parameter size of the 3-die 25-tooth worm gear, and the sprocket 3-7 is manufactured according to the size of the double-row 5-point 10A sprocket.

[0046] All components are installed with the main structure box shell 3-3, the main structure box cover 1 3-4 and the main structure box cover 2 3-11 as the mother body. The main structure box cover 2 3-11 has 9 corresponding standard bearing holes for standard bearing installation. When all kinds of bearings are installed with the corresponding workpieces as needed, the first worm gear shaft 3-1, the first worm gear 3-2, the second worm gear shaft 3-5, the second worm gear 3-6, the sprocket 3-7, the copper washer 3-8, the third worm gear shaft 3-9, and the sprocket shaft 3-10 are installed in place according to the assembly sequence, and the main structure box cover 1 3-4 is buckled. And the main structure box cover plate 2 3-11 (countersunk bolts fix each cover plate), the first worm gear shaft 3-1, the second worm gear shaft 3-5, the third worm gear shaft 3-9 and the sprocket shaft 3-10 are connected in an inner shaft-outer shaft manner, one end of the sprocket shaft 3-10 and the third worm gear shaft 3-9 adopt a round shaft to square shaft transition to achieve interconnected drive, one end of the sprocket shaft 3-10 is designed to be a helical tooth coupling drive, so that the sprocket can be tightened and rotated and the chain can be manually tightened to rotate freely, avoiding long-term manual rotation of the worm gear to tighten the chain, and also realizing the anti-retraction and anti-loosening function. After the two shafts are installed in place, O-type elastic retaining rings are used to fix both ends to prevent displacement and stringing of the shafts.

[0047] The first worm gear shaft 3-1 and the first worm gear 3-2 are used together. A handwheel or a wrench is used to rotate the first worm gear shaft 3-1 to drive the first worm gear 3-2 to rotate slowly. The first worm gear 3-2 is connected to the third worm gear shaft 3-9 through the worm gear shaft key to drive the sprocket shaft 3-10 to rotate and drive the sprocket 3-7 to rotate and drive the double-row fastening chain to do work. The pulling and bundling work of the double-row fastening chain is used to achieve the purpose of fixing and installing the equipment on structures such as railings, concrete columns, various shapes of steel structure columns and beams, and pipelines. When used in conjunction with the clamping device 4, the end connecting block of the double-row fastening chain is connected to the clamping sliding hook 4-1 of the clamping device, and the clamping sliding hook 4-1 is driven by the fastening chain to move inward and clamp, so as to achieve fixed installation on structural surfaces such as railings, concrete columns, various shapes of steel structure columns and beams.

[0048] The second worm gear shaft 3-5 and the second worm gear 3-6 are installed in the main structure box shell 3-3 on a single side. After the installation is completed in their respective positions, the second worm gear shaft 3-5 is used in conjunction with the second worm gear 3-6. The second worm gear shaft 3-5 is rotated using a handwheel or a wrench to drive the second worm gear 3-6 to rotate slowly. The second worm gear 3-6 is connected to the lower rotating shaft 2-3 connected to the steering shaft mechanism 2, driving the steering shaft mechanism 2 to rotate and do work, so as to achieve the purpose of adjusting the spraying direction of the fire hose.

[0049] like Fig.13As shown; the clamping device 4 includes a clamping sliding hook 4-1, a clamping sliding guide rail 4-2 and a clamping fixed hook 4-3, wherein the clamping sliding guide rail 4-2 is made of a high-strength standard slide rail as a whole, one end of the clamping sliding guide rail 4-2 is slotted for installation and use of the clamping sliding hook 4-1, the clamping sliding hook 4-1 and the clamping fixed hook 4-3 are made of high-strength steel, and the clamping fixed hook 4-3 is fixed to the other end of the clamping sliding guide rail 4-2 with bolts.

[0050] When the clamping device 4 is used in conjunction with the main structure box 3, it is connected to the bottom of the main structure box 3 by countersunk bolts. After the clamping sliding hook 4-1 is connected to the end of the double-row fastening chain, the sprocket 3-7 is rotated to drive the double-row fastening chain to pull and perform work, thereby realizing the sliding and tightening operation of the clamping sliding hook 4-1, thereby achieving the purpose of clamping and fixing on the steel structure and concrete columns, various types of steel beams and the side of the railings.

[0051] like Fig.14 As shown; the land support 5 includes a support quick-connect top plate 5-1, a support leg 5-2 and a counterweight water tank 5-3. All components are made of aluminum alloy. The support quick-connect top plate 5-1 and the support leg 5-2 are designed to adopt a side insertion connection (with an automatic latch), and the counterweight water tank 5-3 and the three legs of the support leg 5-2 are connected by a hanging chain. The counterweight water tank 5-3 mainly plays a counterweight stabilizing role to offset the recoil force generated by the water gun spraying the fire extinguishing agent, while minimizing the deadweight of the structure and the storage volume.

[0052] When the land support 5 is used in a combined state with the water gun clamp 1, the steering shaft mechanism 2, and the main structure box 3, the main structure box 3 is connected by four corner fixing bolts. It is used when there is no need to tie or clamp the fire water gun on the structure, such as relatively flat ground, woods and grass, and other land surfaces.

[0053] When the land support is assembled and used, the counterweight water tank 5-3 is first filled with water using a fire hose, or sand can be directly poured in to serve as a counterweight.

[0054] The utility model equipment realizes the purpose of setting up the fire hose in various environments and various types of spaces, so that one set of equipment can be used in all environmental scenarios.

[0055] From the above, it can be seen that compared with the prior art, the utility model

[0056] First, the utility model firstly realizes that various models of water gun holders 1 can be interchangeably connected with the steering shaft mechanism 2, thereby realizing the installation and setting of various models of fire-fighting water guns.

[0057] Secondly, the tightening and rotation adjustment of the utility model adopts a worm gear drive structure. The designed worm gear tightening mechanism realizes the maximum torque output of the tightening tension, and the rotation adjustment of the worm gear structure realizes precise micro-control adjustment of the angle. At the same time, it cooperates with the 360-degree rotation of the steering shaft mechanism 2 and the 90-degree angle adjustment of the water gun clamp 1 to meet the installation of the fire water gun within 90 degrees to the left and right after lateral installation, avoids the adverse effects brought by various unfavorable installation environments, and achieves the purpose of all-round and multi-space installation.

[0058] Third, the utility model equipment utilizes mature fastening and connection methods, fully utilizes the powerful clamping and winding tightening force of the equipment body itself, and utilizes the ductility and contraction of the double-row fastening chain to meet the requirements of bundling and erecting various large and small structural parts. By connecting with the clamping device 4, the clamping and erection of cement or brick-concrete wall heads is realized. At the same time, it can also be used for the clamping and erection of steel structure railings, profile panels with a surface width of more than 150mm, and columns. It is simple to use and easy to operate.

[0059] Fourth, the utility model equipment is installed on the land surface by using the land support 5, and the support design structure is split, which can be freely stored and reduce the occupied space. While making full use of the structural stability advantage of the support itself, a counterweight water tank 5-3 is added to increase the stability of the fire-fighting water gun under the large recoil of the fire-fighting agent, and the counterweight water tank 5-3 can also be directly filled with sand as a counterweight.

[0060] Fifth, after the main structure box body 3 of the utility model equipment is combined with the connecting steering shaft mechanism 2, the maximum length is 280mm, the width is 150m, and the height is 290mm. Because most of the materials are made of aluminum alloy, it has the characteristics of small size and light weight, and is extremely convenient to operate, use and carry.

[0061] Sixth, all the rotating transmission intersection fixed points of the equipment of the utility model are installed with high-precision bearings, which completely avoids the generation of friction resistance, makes the operation of the entire rotating mechanism light, fast and labor-saving, and minimizes the physical effort during use.

[0062] Seventh, when the utility model equipment is not used for setting up water gun positions, it can use its own chain fastening method and cooperate with other tools to achieve bundling or pulling operations in horizontal, vertical and oblique pulling states.

[0063] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire hose auxiliary rack, characterized in that: It comprises a water gun holder (1) for fixing a fire-fighting water gun; it comprises a lower semicircular clamp (1-2) and an upper semicircular clamp (1-1) which opens and closes relative to the lower semicircular clamp (1-2); A connecting steering shaft mechanism (2) comprises an upper rotating shaft (2-1), a locking seat (2-2) and a lower rotating shaft (2-3); the upper portion of the upper rotating shaft (2-1) is connected to the lower semicircular clamp (1-2); the bottom ball head of the upper rotating shaft (2-1) is arranged in the locking seat (2-2) and embedded in the U-shaped groove of the lower rotating shaft (2-3); A main structure box (3), the main structure box (3) comprising a main structure box shell (3-3) and a second worm gear (3-6) installed on one side of the main structure box shell (3-3) and connected to the lower rotating shaft (2-3); the second worm gear (3-6) is connected to a second worm gear shaft (3-5); the second worm gear shaft (3-5) rotates to drive the second worm gear (3-6) to rotate and causes the connected steering shaft mechanism (2) to rotate.

2. The fire hose auxiliary rack according to claim 1, characterized in that: The main structure box (3) also includes a first worm gear shaft (3-1), a first worm gear (3-2), a sprocket (3-7), and a sprocket shaft (3-10); the first worm gear shaft (3-1) is connected to the first worm gear (3-2); the first worm gear (3-2) is connected to the sprocket shaft (3-10) via a third worm gear shaft (3-9); and the sprocket (3-7) is connected to the sprocket shaft (3-10).

3. The fire hose auxiliary rack according to claim 2, characterized in that: The third worm gear shaft (3-9) and the sprocket shaft (3-10) are connected to each other in an inner shaft outer sleeve manner; when one end of the sprocket shaft (3-10) is connected to the third worm gear shaft (3-9), a round shaft to square shaft transition method is adopted, and the other end of the sprocket shaft (3-10) is driven by helical gear coupling.

4. The fire hose auxiliary rack according to claim 3, characterized in that: The main structure box (3) also includes a main structure box cover plate 1 (3-4), a copper gasket (3-8) and a main structure box cover plate 2 (3-11); the main structure box cover plate 1 (3-4) is installed on the main structure box shell (3-3) and is located on one side of the first worm gear shaft (3-1); the copper gasket (3-8) is installed on the first worm gear shaft (3-1), and the main structure box cover plate 2 (3-11) is installed on the main structure box shell (3-3) and is located on one side of the second worm gear (3-6).

5. The fire hose auxiliary rack according to claim 4, characterized in that: The invention also comprises a clamping device (4) connected to the bottom of the main structure box (3), wherein the clamping device (4) comprises a clamping sliding hook (4-1), a clamping sliding guide rail (4-2) and a clamping fixed hook (4-3); the clamping sliding guide rail (4-2) is provided with a slot, the clamping sliding hook (4-1) is installed in the slot and is connected to the sprocket (3-7) through a double-row fastening chain end connecting block; the clamping fixed hook (4-3) is installed on the clamping sliding guide rail (4-2) and is away from the clamping sliding hook (4-1).

6. The fire hose auxiliary stand according to claim 5, characterized in that: It also includes a land support (5), which includes a support quick-connect top plate (5-1), legs (5-2) and a counterweight water tank (5-3); the support quick-connect top plate (5-1) is connected to the main structure box (3) by bolts; the legs (5-2) are installed at the bottom of the support quick-connect top plate (5-1), and the counterweight water tank (5-3) is installed at the bottom of the support quick-connect top plate (5-1) and connected to the legs (5-2).

Images