Convenient-to-adjust clamping device for fire hose and use method of convenient-to-adjust clamping device

Abstract

The invention relates to the technical field of fire fighting, and discloses a fire hose clamping device convenient to adjust, the fire hose clamping device comprises a supporting frame and a handle, reel assemblies are arranged on the outer walls of the supporting frame and the handle, shell assemblies are arranged on the outer walls of the reel assemblies, clamping assemblies are arranged on the inner walls of the reel assemblies, and the reel assemblies comprise rotating seats; a baffle is fixedly installed on the outer wall of the rotating base, a rotating shaft is rotatably installed on the inner wall of the rotating base, and a roller is fixedly installed on the outer wall of the rotating shaft. According to the fire hose clamping device convenient to adjust, through the design of a second guide roller, friction force between a fire hose and a clamping plate is reduced, abrasion of the fire hose is avoided, the fire hose is more smooth and labor-saving to take up and pay off, through the design of the two clamping assemblies, the two ends of the fire hose are stressed in a balanced mode, the situation that one end is loosened and the other end is tightened is avoided, and the service life of the fire hose is prolonged. And it is ensured that the fire hose is always kept in a stable state in the take-up, pay-off and use processes.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, specifically to an adjustable fire hose clamping device and its usage method. Background Technology

[0002] Fire hose clamping devices are core auxiliary components in firefighting operations, used to quickly secure the connection interfaces between fire hoses and equipment such as fire hydrants and nozzles. These devices typically employ snap-fit ​​or lever-type clamping structures, adaptable to fire hoses of different diameters, and use locking components to achieve sealing and prevent detachment under high-pressure water delivery. Their design balances convenience and reliability, significantly reducing hose connection time and preventing water loss and safety hazards caused by loose connections. In fire fighting and emergency rescue scenarios, they improve operational efficiency and provide stable support for firefighters to quickly deploy firefighting and extinguishing operations.

[0003] Chinese Utility Model Patent Publication No. CN210854798U discloses an adjustment mechanism for a fire hose clamping device. The specification of this adjustment mechanism states that by setting a retraction mechanism, a pulling force can be applied to the pulleys, causing the two pulleys to move in opposite directions, thus ensuring that the pulleys are always in close contact with the inner wall of the fixed plate, improving the practicality of the invention. By setting a rotating shaft, the pulleys can be connected to the fixed rod without hindering their rotation, improving the stability of the pulleys and reducing the friction between the movable plate and the fixed plate. However, this adjustment mechanism only clamps the fire hose through a single-sided clamping component, resulting in uneven force on both ends of the fire hose, easily leading to one end being loose and the other tight. Furthermore, the clamping plate is a straight plate, directly contacting the fire hose, resulting in high friction and easy wear on the fire hose. Therefore, its practicality is poor and it is not convenient for widespread use.

[0004] Therefore, we propose an easily adjustable fire hose clamping device and its usage method. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an easily adjustable clamping device for fire hoses. It can effectively solve the problems in the prior art, where fire hoses are clamped by only one side of the clamping component, resulting in uneven force on both ends of the fire hose, which easily leads to one end being loose and the other end being tight. In addition, the clamping plate is a straight plate that is in direct contact with the fire hose, resulting in high friction and easy wear of the fire hose. This makes it impractical and inconvenient for widespread use.

[0006] The technical solution adopted in this invention is: a fire hose clamping device that is easy to adjust, including a support frame and a handle, wherein a reel assembly is provided on the outer wall of the support frame and the handle, a housing assembly is provided on the outer wall of the reel assembly, and a clamping assembly is provided on the inner wall of the reel assembly. The reel assembly includes a rotating base, a baffle is fixedly installed on the outer wall of the rotating base, a rotating shaft is rotatably installed on the inner wall of the rotating base, a roller is fixedly installed on the outer wall of the rotating shaft, a handle is provided on the outer wall of the rotating base, a slot and a threaded hole are provided at the end of the rotating shaft near the handle, an insert is fixedly installed at the end of the handle near the rotating shaft, a threaded hole is provided on the outer wall of the insert, and a bolt is threadedly connected at the end of the rotating shaft near the handle.

[0007] Preferably, the plug and the slot are plugged in, and the cross-section of the plug is hexagonal.

[0008] With the above technical solution, workers can quickly position the handle by inserting the plug into the slot, eliminating the need for complicated alignment work and improving assembly efficiency.

[0009] Preferably, the bolt extends through threaded hole one into threaded hole two, and threaded hole one and threaded hole two have the same diameter.

[0010] With the above technical solution, after the handle is quickly positioned, the staff can insert the bolt through the threaded hole one and extend it into the threaded hole two, which can quickly fix the handle and facilitate its maintenance or replacement after long-term use.

[0011] Preferably, the housing assembly includes a housing one, a housing two rotatably mounted on the outer wall of the housing one, a through hole one on the outer wall of the housing one, a through hole two on the outer wall of the reel assembly, a screw inserted into the outer wall of the reel assembly, a nut threaded onto the outer wall of the screw, a feed inlet fixedly mounted on the outer wall of the housing one, a guide roller one rotatably mounted on the end of the feed inlet away from the housing one, a buckle fixedly mounted on the end of the housing two near the housing one, a slot opened on the end of the housing one near the housing two, a fixing block fixedly mounted on the inner wall of the reel assembly, the fixing block being adapted to the inner wall of the housing one, the screw penetrating through the through hole two and the through hole one, the through hole two and the through hole one having the same diameter, and the nut abutting against the reel assembly.

[0012] Using the above technical solution, the worker inserts the housing into the inside of the reel assembly, so that the housing abuts against the fixing block. Then, the worker inserts the screw through the through hole 2 and the through hole 1, and then connects the nut to the screw thread, so that the nut abuts against the reel assembly. This allows for the quick installation of the housing, and facilitates quick assembly and disassembly during use or assembly.

[0013] Preferably, the fixing block is adapted to the inner wall of the housing 2, and the buckle is adapted to the slot.

[0014] With the above technical solution, after the first housing is quickly installed, the operator can rotate the second housing so that the second housing comes into contact with the fixing block, and at the same time the buckle is engaged in the slot, which can realize the quick docking of the second housing and the first housing, making it easy to quickly disassemble and assemble during use or assembly.

[0015] Preferably, the clamping assembly includes a first movable groove, and the inner wall of the reel assembly has a first movable groove, a second movable groove, and a sliding groove. A stud is fixedly installed on the inner wall of the first movable groove, a threaded sleeve is threadedly connected to the outer wall of the stud, a fixed sleeve is fixedly installed on the outer wall of the threaded sleeve, a hook plate is rotatably installed at the end of the threaded sleeve away from the stud, and a spring is provided at the end of the hook plate away from the threaded sleeve. A clamping plate is provided on the inner wall of the reel assembly, a second guide roller is rotatably installed on the outer wall of the clamping plate, a fixed post and a slider are fixedly installed on the outer wall of the clamping plate, one end of the spring is connected to the hook plate, and the other end of the spring is connected to the fixed post. The clamping plate has an arc-shaped cross-section. Multiple second guide rollers are provided, and the multiple second guide rollers are arranged in a ring. The slider and the sliding groove are slidably connected.

[0016] With the above technical solution, when winding up the fire hose, the worker first opens the second housing, then winds the fire hose around the outside of the roller through the feed port, and then winds up the fire hose by turning the handle. During the winding process, the thickness of the fire hose gradually increases, which will squeeze the clamp plate outward. Due to the presence of the spring, the clamp plate clamps the fire hose. Through the cooperation of the slider and the groove, the clamp plate provides guidance when moving, improving the stability during use. The design of the second guide roller reduces the friction between the fire hose and the clamp plate, avoids wear on the fire hose, and makes the winding and unwinding of the fire hose smoother and less labor-intensive.

[0017] Preferably, four identical springs and sliders are provided, and the four springs and sliders are symmetrically distributed about the center line of the clamping plate.

[0018] The above technical solution, through the design of four springs and sliders, avoids the fire hose from shifting or tilting due to uneven force, ensuring that the fire hose is always in the center position and improving the neatness of winding.

[0019] Preferably, the first movable groove is connected to the second movable groove, and the fixed sleeve is located inside the second movable groove.

[0020] Through the above technical solution, by cooperating with the stud, threaded sleeve and fixed sleeve, the operator rotates the fixed sleeve to make the threaded sleeve and stud threadedly connected, so that the threaded sleeve can move up or down, making it easy to adjust the preload of the spring, and has high adaptability.

[0021] Preferably, there are two identical clamping components, and the two clamping components are symmetrically distributed about the center line of the reel assembly.

[0022] The above technical solution, through the design of two clamping components, ensures that the fire hose is subjected to balanced force at both ends, avoiding a situation where one end is loose and the other end is tight, and ensuring that the fire hose remains stable during deployment and use.

[0023] A method for using an adjustable fire hose clamping device includes the following steps: S1: When it needs to be used on the ground, the reel assembly can be installed on the surface of the support frame for use; S2: When it is necessary to lift it for use, install the reel assembly at the bottom of the handle; S3: The operator rotates the fixed sleeve to make the threaded sleeve and the stud threaded together, so that the threaded sleeve moves up or down, thereby adjusting the preload of the spring and optimizing the clamping effect; S4: The staff pried open the buckle of the second shell and rotated the second shell outward to open the second shell. S5: The worker passes one end of the fire hose through the feed inlet and wraps it around the outside of the roller, causing the roller to rotate 3-5 times; S6: After the fire hose is pre-wound, rotate housing two to make the buckle engage in the slot, close the housing, and put housing two in the closed state; S7: The operator turns the handle to rotate the roller and rewind the fire hose; S8: During the winding process, the increased thickness of the fire hose compresses the clamping plate, and the spring extends, causing the spring to pull the clamping plate back, providing clamping force for the fire hose.

[0024] Compared with the prior art, the present invention provides an easily adjustable clamping device for fire hoses, which has the following advantages: 1. This adjustable fire hose clamping device, through the design of the insert block and slot, can achieve quick positioning of the handle without complicated alignment work, improving assembly efficiency. In conjunction with the design of the bolt, threaded hole one and threaded hole two, the handle can be quickly fixed, which is convenient for maintenance or replacement after long-term use. Through the cooperation of the fixing block with housing one and screw, through hole two, through hole one and nut, housing one can be quickly installed, which is convenient for quick disassembly and assembly during use or assembly. Through the design of the fixing block with housing two and the buckle and slot, housing two can be quickly connected with housing one, which is convenient for quick disassembly and assembly during use or assembly. 2. This easily adjustable fire hose clamping device, through the design of the clamping components, allows the clamping plates to be pressed outwards as the thickness of the fire hose gradually increases during the winding process. The presence of springs ensures the clamping plates hold the fire hose in place. The cooperation of the slider and the sliding groove provides guidance during the movement of the clamping plates, improving stability during use. The design of the guide rollers reduces friction between the fire hose and the clamping plates, preventing wear and tear on the fire hose, and making the winding and unwinding of the fire hose smoother and less strenuous. The design of four springs and sliders further prevents... To prevent fire hoses from shifting or tilting due to uneven force, ensuring that the fire hose is always in the center position and improving the neatness of winding, the system uses a combination of studs, threaded sleeves, and fixed sleeves. By rotating the fixed sleeve, the threaded sleeve connects with the stud, allowing the threaded sleeve to move up or down, making it easy to adjust the spring preload. This design offers high adaptability. The two clamping components ensure that the fire hose is evenly stressed at both ends, preventing one end from being loose and the other tight, and ensuring that the fire hose remains stable during winding, unwinding, and use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the handle mounting structure of the present invention; Figure 4 This is a schematic diagram of a half-section of the reel assembly of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the disassembled structure of the housing assembly of the present invention; Figure 6 This is a schematic diagram of the snap-fit ​​installation structure of the present invention; Figure 7 This is a schematic diagram of a half-section of the housing assembly of the present invention; Figure 8 This is a schematic diagram of the installation structure of the clamping component of the present invention; Figure 9 This is a three-dimensional structural diagram of the clamping component of the present invention; Figure 10 This is a schematic diagram of the threaded sleeve installation structure of the present invention; Figure 11 This is a schematic diagram of the clamp mounting structure of the present invention; Figure 12 This is a schematic diagram of a half-section of the reel assembly of the present invention. Figure 2 Figure 13 This is a schematic diagram of the process of the present invention.

[0026] The components include: 1. Support frame; 2. Handle; 3. Reel assembly; 4. Housing assembly; 5. Clamping assembly; 301. Rotary seat; 302. Baffle; 303. Rotary shaft; 304. Roller; 305. Handle; 306. Slot; 307. Threaded hole one; 308. Insert block; 309. Threaded hole two; 310. Bolt; 401. Housing one; 402. Housing two; 403. Through hole one; 404. Through hole two; 40 5. Screw; 406. Nut; 407. Feed inlet; 408. Guide roller one; 409. Buckle; 410. Slot; 411. Fixing block; 501. Movable groove one; 502. Movable groove two; 503. Slide groove; 504. Stud; 505. Threaded sleeve; 506. Fixing sleeve; 507. Hook plate; 508. Spring; 509. Clamping plate; 510. Guide roller two; 511. Fixing column; 512. Slider. Detailed Implementation

[0027] 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, and 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.

[0028] Example 1: As Figure 1 - Figure 13 As shown, the present invention provides an adjustable fire hose clamping device, including a support frame 1 and a handle 2. The outer wall of the support frame 1 and the handle 2 is provided with a reel assembly 3, the outer wall of the reel assembly 3 is provided with a housing assembly 4, and the inner wall of the reel assembly 3 is provided with a clamping assembly 5. The reel assembly 3 includes a rotating base 301, a baffle 302 fixedly installed on the outer wall of the rotating base 301, a rotating shaft 303 rotatably installed on the inner wall of the rotating base 301, a roller 304 fixedly installed on the outer wall of the rotating shaft 303, a handle 305 provided on the outer wall of the rotating base 301, a slot 306 and a threaded hole 307 provided at one end of the rotating shaft 303 near the handle 305, an insert 308 fixedly installed at one end of the handle 305 near the rotating shaft 303, a threaded hole 309 provided on the outer wall of the insert 308, and a bolt 310 threadedly connected to one end of the rotating shaft 303 near the handle 305.

[0029] Specifically, the insert 308 and the slot 306 are plug-in connected, and the insert 308 has a hexagonal cross-section. The advantage is that by inserting the insert 308 into the slot 306, the handle 305 can be quickly positioned without complex alignment work, thus improving assembly efficiency.

[0030] Specifically, bolt 310 extends through threaded hole 307 to the interior of threaded hole 309, with threaded hole 307 and threaded hole 309 having the same diameter. The advantage is that after quickly positioning handle 305, the operator can quickly fix handle 305 by extending bolt 310 through threaded hole 307 to threaded hole 309, facilitating maintenance or replacement after prolonged use.

[0031] Specifically, housing assembly 4 includes housing one 401, housing two 402 rotatably mounted on the outer wall of housing one 401, a through hole one 403 formed on the outer wall of housing one 401, a through hole two 404 formed on the outer wall of reel assembly 3, a screw 405 inserted into the outer wall of reel assembly 3, a nut 406 threadedly connected to the outer wall of screw 405, and a feed inlet 407 fixedly mounted on the outer wall of housing one 401, with the end of feed inlet 407 away from housing one 401 rotatably mounted The reel assembly 3 includes a guide roller 408, a housing 402 with a buckle 409 fixedly installed at one end near the housing 401, a slot 410 at one end of the housing 401 near the housing 402, and a fixing block 411 fixedly installed on the inner wall of the reel assembly 3. The fixing block 411 is adapted to the inner wall of the housing 401. A screw 405 passes through through holes 404 and 403, with the same diameter. A nut 406 abuts against the reel assembly 3. The advantage is that the operator inserts the housing 401 into the reel assembly 3, causing it to abut against the fixing block 411. Then, the operator inserts the screw 405 through through holes 404 and 403, and finally threads the nut 406 onto the screw 405, causing the nut 406 to abut against the reel assembly 3. This allows for quick installation of the housing 401 and facilitates rapid assembly and disassembly during use or assembly.

[0032] Example 2: Figure 2 - Figure 13 As shown, this is an improvement on the previous embodiment.

[0033] Specifically, the fixing block 411 is adapted to the inner wall of the second housing 402, and the buckle 409 is adapted to the slot 410. The advantage is that after the first housing 401 is quickly installed, the operator can rotate the second housing 402, causing the second housing 402 to abut against the fixing block 411, and at the same time, the buckle 409 to snap into the slot 410, which can realize the quick docking of the second housing 402 and the first housing 401, making it easy to quickly assemble and disassemble during use or assembly.

[0034] Specifically, the clamping assembly 5 includes a first movable groove 501. The inner wall of the reel assembly 3 has a first movable groove 501, a second movable groove 502, and a sliding groove 503. A stud 504 is fixedly installed on the inner wall of the first movable groove 501. A threaded sleeve 505 is threadedly connected to the outer wall of the stud 504. A fixing sleeve 506 is fixedly installed on the outer wall of the threaded sleeve 505. A hook plate 507 is rotatably installed at the end of the threaded sleeve 505 away from the stud 504. A spring 50 is provided at the end of the hook plate 507 away from the threaded sleeve 505. 8. The inner wall of the reel assembly 3 is provided with a clamping plate 509. The outer wall of the clamping plate 509 is rotatably mounted with a guide roller 510. The outer wall of the clamping plate 509 is fixedly mounted with a fixing post 511 and a slider 512. One end of the spring 508 is connected to the hook plate 507, and the other end of the spring 508 is connected to the fixing post 511. The cross-section of the clamping plate 509 is in the shape of an arc. Multiple identical guide rollers 510 are provided. The multiple guide rollers 510 are arranged in a ring. The slider 512 is slidably connected to the slide groove 503. The advantages are that when winding up the fire hose, the operator first opens the housing 402, then winds the fire hose around the outside of the roller 304 through the feed port 407, and then winds up the fire hose by turning the handle 305. During the winding process, the thickness of the fire hose gradually increases, which will squeeze the clamping plate 509 outward. Due to the presence of the spring, the clamping plate 509 clamps the fire hose. Through the cooperation of the slider 512 and the groove 503, the clamping plate 509 provides guidance when moving, improving the stability during use. The design of the guide roller 510 reduces the friction between the fire hose and the clamping plate, avoids wear on the fire hose, and makes the winding and unwinding of the fire hose smoother and less labor-intensive.

[0035] Specifically, four identical springs 508 and sliders 512 are provided, and the four springs 508 and sliders 512 are symmetrically distributed about the center line of the clamping plate 509. The advantage is that the design of four springs 508 and sliders 512 avoids the fire hose from shifting or tilting due to uneven force, ensuring that the fire hose is always in the center position and improving the neatness of winding.

[0036] Example 3: Figure 3 - Figure 13 As shown, this is an improvement on the previous embodiment.

[0037] Specifically, movable slot 1 501 communicates with movable slot 2 502, and fixed sleeve 506 is located inside movable slot 2 502. The advantage is that, through the cooperation of stud 504, threaded sleeve 505, and fixed sleeve 506, the operator can rotate fixed sleeve 506, causing threaded sleeve 505 to connect with stud 504, allowing threaded sleeve 505 to move up or down, facilitating adjustment of spring preload and providing high adaptability.

[0038] Specifically, there are two identical clamping components 5, which are symmetrically distributed about the center line of the reel assembly 3. The advantage is that the design of two clamping components 5 ensures that the force on both ends of the fire hose is balanced, avoiding a situation where one end is loose and the other end is tight, and ensuring that the fire hose remains stable during deployment and use.

[0039] A method for using an adjustable fire hose clamping device includes the following steps: S1: When it is necessary to place it on the ground, the reel assembly 3 can be installed on the surface of the support frame 1 for use; S2: When it is necessary to lift and use it, install the reel assembly 3 at the bottom of the handle 2 for use; S3: The operator rotates the fixed sleeve 506, so that the threaded sleeve 505 is threadedly connected to the stud 504, so that the threaded sleeve 505 moves up or down, thereby adjusting the preload of the spring 508 and optimizing the clamping effect. S4: The staff pry open the buckle 409 of the second housing 402 and rotate the second housing 402 outward to put the second housing 402 in the open state; S5: The staff will pass one end of the fire hose through the feed inlet 407 and wrap it around the outside of the roller 304, so that the roller 304 rotates 3-5 times; S6: After the fire hose is pre-wound, rotate housing 2 402 so that buckle 409 engages with slot 410, close housing, and put housing 2 402 in the closed state. S7: The operator turns the handle 305 to rotate the roller 304 and rewind the fire hose; S8: During the winding process, the increased thickness of the fire hose compresses the clamping plate 509, and the spring 508 extends, causing the spring 508 to pull the clamping plate 509 back, providing clamping force for the fire hose.

[0040] Working principle: During installation, the operator inserts the insert block 308 into the slot 306, which allows for quick positioning of the handle 305 without complex alignment work, improving assembly efficiency. After quickly positioning the handle 305, the operator inserts the bolt 310 through the threaded hole 307 to the threaded hole 309, which allows for quick fixing of the handle 305. This facilitates maintenance or replacement after prolonged use. Then, the operator inserts the housing 401 into the reel assembly 3, causing it to abut against the fixing block 411. Finally, the operator inserts the screw 405 through the through hole 404 and the through hole 409. 3. Next, thread nut 406 onto screw 405 so that nut 406 abuts against reel assembly 3, enabling quick installation of housing 401. This facilitates quick assembly and disassembly during use or assembly. After quick installation of housing 401, the operator rotates housing 402 so that housing 402 abuts against fixing block 411, simultaneously engaging buckle 409 into slot 410. This allows for quick docking of housing 402 and housing 401, facilitating quick assembly and disassembly during use or assembly. When reeling in the fire hose, the operator first opens housing 402, then... The fire hose is wound around the outside of the roller 304 through the feed inlet 407. Then, the fire hose is wound up by rotating the handle 305. During the winding process, the thickness of the fire hose gradually increases, squeezing the clamping plate 509 outwards. Due to the presence of springs, the clamping plate 509 holds the fire hose. Through the cooperation of the slider 512 and the groove 503, the clamping plate 509 provides guidance during movement, improving stability during use. The design of the guide roller 510 reduces the friction between the fire hose and the clamping plate, preventing wear on the fire hose and making the winding and unwinding of the fire hose smoother and less strenuous. Four springs 508 and the slider... The 512 design prevents the fire hose from shifting or tilting due to uneven force, ensuring that the fire hose is always in the center position and improving the neatness of winding. Through the cooperation of stud 504, threaded sleeve 505 and fixed sleeve 506, the operator can rotate the fixed sleeve 506 to make the threaded sleeve 505 threadedly connected to the stud 504, so that the threaded sleeve 505 can move up or down, making it easy to adjust the preload of the spring. It has high adaptability. The design of two clamping components 5 ensures that the fire hose is evenly stressed at both ends, avoiding the situation of one end being loose and the other end being tight, and ensuring that the fire hose remains stable during winding, unwinding and use.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An adjustable fire hose clamping device, comprising a support frame (1) and a handle (2), characterized in that: The outer walls of the support frame (1) and handle (2) are provided with a reel assembly (3), the outer walls of the reel assembly (3) are provided with a housing assembly (4), and the inner walls of the reel assembly (3) are provided with a clamping assembly (5). The reel assembly (3) includes a rotating base (301), a baffle (302) is fixedly installed on the outer wall of the rotating base (301), a rotating shaft (303) is rotatably installed on the inner wall of the rotating base (301), a roller (304) is fixedly installed on the outer wall of the rotating shaft (303), a handle (305) is provided on the outer wall of the rotating base (301), a slot (306) and a threaded hole (307) are provided on one end of the rotating shaft (303) near the handle (305), an insert (308) is fixedly installed on one end of the handle (305) near the rotating shaft (303), a threaded hole (309) is provided on the outer wall of the insert (308), and a bolt (310) is threadedly connected to one end of the rotating shaft (303) near the handle (305).

2. The adjustable fire hose clamping device according to claim 1, characterized in that: The plug (308) and the slot (306) are plugged in and installed together. The cross-section of the plug (308) is hexagonal.

3. The adjustable fire hose clamping device according to claim 1, characterized in that: The bolt (310) extends through threaded hole one (307) into the interior of threaded hole two (309), the threaded hole one (307) and threaded hole two (309) having the same diameter.

4. The adjustable fire hose clamping device according to claim 1, characterized in that: The housing assembly (4) includes a housing one (401), a housing two (402) is rotatably mounted on the outer wall of the housing one (401), a through hole one (403) is opened on the outer wall of the housing one (401), a through hole two (404) is opened on the outer wall of the reel assembly (3), a screw (405) is inserted into the outer wall of the reel assembly (3), a nut (406) is threaded onto the outer wall of the screw (405), a feed port (407) is fixedly mounted on the outer wall of the housing one (401), and a guide is rotatably mounted on the end of the feed port (407) away from the housing one (401). Roller 1 (408), the end of housing 2 (402) near housing 1 (401) is fixedly installed with buckle (409), the end of housing 1 (401) near housing 2 (402) is provided with slot (410), the inner wall of the reel assembly (3) is fixedly installed with fixing block (411), the fixing block (411) is adapted to the inner wall of housing 1 (401), the screw (405) passes through through hole 2 (404) and through hole 1 (403), the diameter of through hole 2 (404) and through hole 1 (403) is the same, and the nut (406) abuts against the reel assembly (3).

5. The adjustable fire hose clamping device according to claim 4, characterized in that: The fixing block (411) is adapted to the inner wall of the housing (402), and the buckle (409) is adapted to the slot (410).

6. The adjustable fire hose clamping device according to claim 1, characterized in that: The clamping assembly (5) includes a first movable groove (501). The inner wall of the reel assembly (3) is provided with a first movable groove (501), a second movable groove (502), and a sliding groove (503). A stud (504) is fixedly installed on the inner wall of the first movable groove (501). A threaded sleeve (505) is threadedly connected to the outer wall of the stud (504). A fixing sleeve (506) is fixedly installed on the outer wall of the threaded sleeve (505). A hook plate (507) is rotatably installed at the end of the threaded sleeve (505) away from the stud (504). A spring (508) is provided at the end of the hook plate (507) away from the threaded sleeve (505). The inner wall of the reel assembly (3) is provided with a clamping plate (509), and the outer wall of the clamping plate (509) is rotatably mounted with a guide roller (510). The outer wall of the clamping plate (509) is fixedly mounted with a fixing column (511) and a slider (512). One end of the spring (508) is connected to the hook plate (507), and the other end of the spring (508) is connected to the fixing column (511). The cross section of the clamping plate (509) is in the shape of an arc. Multiple identical guide rollers (510) are provided, and the multiple guide rollers (510) are arranged in a ring. The slider (512) is slidably connected to the slide groove (503).

7. The adjustable fire hose clamping device according to claim 6, characterized in that: The spring (508) and slider (512) are provided in four identical quantities, and the four springs (508) and sliders (512) are symmetrically distributed about the center line of the clamp (509).

8. The adjustable fire hose clamping device according to claim 6, characterized in that: The first movable slot (501) is connected to the second movable slot (502), and the fixed sleeve (506) is located inside the second movable slot (502).

9. A fire hose clamping device that is easy to adjust according to claim 6, characterized in that: Two identical clamping components (5) are provided, and the two clamping components (5) are symmetrically distributed about the center line of the reel assembly (3).

10. A method of using an adjustable fire hose clamping device, characterized in that, Its usage method is as follows: S1: When it is necessary to place it on the ground, the reel assembly (3) can be installed on the surface of the support frame (1) for use; S2: When it is necessary to lift it up for use, install the reel assembly (3) at the bottom of the handle (2) for use; S3: The operator rotates the fixed sleeve (506) so that the threaded sleeve (505) is threadedly connected to the stud (504), so that the threaded sleeve (505) moves up or down, thereby adjusting the preload of the spring (508) and optimizing the clamping effect; S4: The staff pried open the buckle (409) of the second shell (402) and rotated the second shell (402) outward to put the second shell (402) in the open state; S5: The staff will pass one end of the fire hose through the feed inlet (407) and wrap it around the outside of the roller (304), so that the roller (304) rotates 3-5 times; S6: After the fire hose is pre-wound, rotate the second housing (402) to make the buckle (409) engage with the slot (410), close the housing, and put the second housing (402) in a closed state; S7: The operator turns the handle (305) to rotate the roller (304) and rewind the fire hose; S8: During the winding process, the increased thickness of the fire hose compresses the clamping plate (509), and the spring (508) extends, causing the spring (508) to pull the clamping plate (509) back, providing clamping force to the fire hose.

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