Fire-fighting water hose emergency docking assembly method and device

Abstract

The present application belongs to the technical field of fire hose assembly, and particularly relates to a fire water hose emergency butt joint assembly method and device. The method comprises the following steps: S1, secondary butt joint assembly; S2, phased assembly. When water leakage occurs at the hose butt joint, the method can quickly reduce the amount of water leakage, avoid the problem of reduced water pressure at the outlet end affecting fire extinguishing, and prevent the expansion of the damaged part. At the same time, when the hose butt joint is damaged and expanded, there is no need to stop water supply and replace the butt joint and hose. The phased assembly can quickly avoid the problem of increased water leakage, and the whole process can effectively handle the leaked water to avoid affecting the external environment. Through the locking mode of the puncture mechanism, the puncture mechanism can be quickly locked and connected, and the two puncture mechanisms can be simultaneously punctured and locked, avoiding the problem of tilting and jamming caused by the asynchronization of the two puncture mechanisms.

Description

Technical Field

[0001] This invention belongs to the field of fire hose assembly technology, specifically relating to a method and device for emergency connection and assembly of fire hoses. Background Technology

[0002] Fire hose splicing refers to connecting two fire hoses using a splice or connector to achieve an effective connection between the water source and the fire extinguishing equipment, ensuring a continuous water supply during firefighting. Splices typically require a tight seal to prevent leaks and allow for flexible adjustment of the hose length and direction as needed to improve firefighting efficiency and safety. Fire hoses are one of the main pieces of fire protection equipment, delivering water to designated locations during a fire; some fire hydrants are located far from the fire site, necessitating the splicing of fire hoses.

[0003] Chinese Patent Application No. 202410500113.1 discloses a quick-connect device for fire hose inner and outer linings, including a base and a connecting mechanism mounted on the base. The connecting mechanism includes an outer lining moving component and an inner lining moving component. During use, the device winds up the traction rope inside the winding frame, then passes the traction rope through the inside of the hose outer lining, and then fixes the end of the traction rope to the end of the expansion plate. Two winding frames are installed inside the device, allowing for simultaneous assembly and fixing of two sets of outer and inner linings, improving assembly efficiency during use. Furthermore, the height of the traction rope is greater than the height of the external sliding rod, preventing the inner lining from hitting the components above the external sliding rod and damaging the hose during retraction. The inner lining can also be brought back to the right side by winding up the traction rope.

[0004] Because the joints of fire hoses are assembly points, they are prone to wear and tear over time. Since these are devices used only during fires, if they are not replaced regularly, there is a risk of leaks at the joints. Disassembling and replacing them with new equipment could delay firefighting efforts. If left unattended, small leaks can quickly expand under prolonged pressure, eventually affecting water pressure and hindering the timely delivery of firefighting water. Furthermore, the hose design makes it difficult to effectively use sealing devices for quick emergency sealing; and the leaked water can also impact the external environment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an emergency connection and assembly method and device for fire hoses. Through a two-stage connection and assembly process, this invention can quickly reduce water leakage at the hose connection point, preventing reduced water pressure at the outlet from affecting firefighting and preventing the damage from worsening. Furthermore, when the hose connection damage worsens, there is no need to stop the water supply and replace the connector or hose; the staged assembly process quickly prevents further leakage and effectively manages the leaked water throughout the process, avoiding impact on the external environment. The invention also utilizes a locking mechanism for the piercing mechanism, enabling rapid locking and connection of the piercing mechanisms while simultaneously allowing two piercing mechanisms to pierce and lock synchronously, preventing tilting and jamming caused by asynchronous piercing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method for emergency connection and assembly of a fire hose includes the following steps: S1. Secondary Assembly: When water seepage occurs at the hose connection during firefighting, adjust the hose angle so that the threaded holes of the connectors face upwards. Then, align the two piercing mechanisms above the threaded holes and rotate them to lock the threaded tubes of the piercing mechanisms with the threaded holes. At this time, the diversion square tube connects the threaded holes at both ends of the hose connection to achieve pressure reduction and diversion, while also achieving circumferential limiting to prevent the two connectors from separating. Adjust the hose angle again so that the water-blocking tank is below the hose to hold water. S2, Phased Assembly: When the leakage at the hose connection worsens, assemble another identical device in the S1 manner, locking the new puncture mechanism onto the threaded hole at the top. This achieves a second diversion while simultaneously closing the two water-blocking grooves to form a sealed space, preventing further leakage.

[0007] Furthermore, the locking method of the piercing mechanism is as follows: the control lever is driven to rotate by an electric wrench, which in turn causes the drive gear to rotate; the drive gear drives the two driven gear rings and the piercing mechanism to rotate through meshing, so as to realize the piercing first and then locking simultaneously, thus locking the threaded tubes and threaded holes of the two piercing mechanisms simultaneously while avoiding jamming.

[0008] An apparatus for the above-mentioned emergency docking assembly method of fire hose includes a coupling comprising two snap-fit ​​coupling bodies, one end of which is fixedly connected to a coupling pipe, and the end of the coupling pipe is symmetrically provided with locking arc blocks, the locking arc blocks having threaded holes through them; the hose is fixed to the outside of the coupling pipe by clamps.

[0009] Furthermore, the two ends of the water-blocking groove are provided with snap-fit ​​arc grooves, the bottom of the water-blocking groove is provided with an installation port and a diversion square tube is fixedly installed on the installation port; the two ends of the diversion square tube are closed and a diversion pipe is provided inside; the top of the diversion square tube is symmetrically provided with a rotating circular groove, and the rotating circular groove is connected to the diversion pipe.

[0010] Furthermore, the puncture mechanism includes a rotating tube rotatably connected to a rotating circular groove, and a connecting hole is provided through the side wall of the rotating tube; a limiting disc is fixedly closed at one end of the rotating tube, and a limiting ring block is fixedly provided at the other end; a threaded tube is fixedly connected to one end of the rotating tube near the limiting ring block, and a conical puncture head is fixedly connected to one end of the threaded tube, and multiple connecting slots are evenly provided on the conical puncture head.

[0011] Furthermore, both the limiting disc and the limiting ring block are fixedly equipped with sealing rings on the side near the diversion square tube.

[0012] Furthermore, the bottom of the water-blocking trough is provided with an operation box, the top of the operation box is provided with a second mounting port, and the second mounting port is fixedly connected to the bottom of the water-blocking trough; the bottom of the operation box is provided with a through-hole for rotation.

[0013] Furthermore, it also includes an operating mechanism, which includes a control rod; the control rod is rotatably connected to the rotating hole, one end of the control rod is fixedly connected to the drive gear, and the other end of the control rod has a hexagonal operating hole; one end of the puncture mechanism is fixedly connected to a driven gear ring, and the driven gear ring meshes with the drive gear.

[0014] Furthermore, the number of teeth on the driving gear is greater than the number of teeth on the driven gear ring.

[0015] Furthermore, waterproof adhesive strips are fixedly installed at the opening of the water-proof groove and on the snap-fit ​​arc groove; when the two water-proof grooves are joined together, the upper and lower waterproof adhesive strips are aligned, and the snap-fit ​​arc groove is snapped onto the outside of the locking arc block.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) This invention, through secondary docking and staged assembly, can quickly reduce the amount of water seepage when water seepage occurs at the hose docking point, avoiding the problem of reduced water pressure at the outlet affecting fire extinguishing and the expansion of the damaged area; at the same time, when the damage at the hose docking point expands, there is no need to stop the water supply to replace the connector and hose. The staged assembly can quickly prevent the problem of water seepage from worsening, and the seepage water can be effectively treated throughout the process to avoid affecting the external environment; specifically, when water seepage occurs at the hose docking point during fire extinguishing, at this time only a small amount of water seeps in. By locking the threaded tubes of the two puncture mechanisms with the threaded holes at both ends of the hose through S1, the diversion square tube can be used to connect the threaded holes at both ends of the hose docking point for diversion. At this time, the water flow is stepped from the hose docking point and also flows from inside the diversion square tube; thereby effectively reducing the pressure at the hose docking point. After the pressure is reduced, the amount of water seepage will be greatly reduced, so the slight damage at the docking point will not be caused by This design addresses the issue of rapid expansion of damage due to excessive water pressure and prevents a drop in water pressure at the outlet from affecting firefighting. Furthermore, this secondary assembly method provides circumferential restraint, preventing the two connectors from rotating out of contact. If the damage at the hose connection expands, and the excessive leakage already affects the water pressure at the outlet and firefighting, there's no need to stop the water supply and replace the connectors and hoses. Instead, a second identical device can be assembled using the S1 method. This not only further reduces pressure at the damaged area but also allows the two water-blocking channels to connect and form a new closed space, preventing further leakage and ensuring continued water pressure and firefighting effectiveness. The process effectively manages leaked water. During the secondary assembly, the leakage is significantly reduced, and one water-blocking channel can hold the water. During the secondary assembly, the two water-blocking channels create a closed space, preventing leaked water from flowing out and thus comprehensively avoiding impact on the external environment.

[0017] (2) The present invention achieves rapid locking and connection of the puncture mechanisms through the locking method of the puncture mechanism, and at the same time, it can simultaneously puncture and lock the two puncture mechanisms, avoiding the tilting and jamming problem caused by the two puncture mechanisms being out of sync; specifically, when locking, it is not necessary to rotate and lock the puncture mechanisms one by one. It is only necessary to drive the control rod and the drive gear to rotate by an external electric wrench. Under the action of meshing, the two driven gear rings and the puncture mechanism can rotate synchronously, achieving synchronous puncture and locking. In this way, it is not necessary to lock them one by one, and the locking speed can be accelerated by the meshing transmission ratio, achieving rapid locking and connection of the puncture mechanisms; at the same time, since the two puncture mechanisms puncture and lock synchronously, it will not cause unevenness on both sides, thus avoiding the jamming problem. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating an emergency connection and assembly method for fire hoses according to the present invention. Figure 2This is a schematic diagram of the distributed structure of an emergency docking assembly device for fire hoses according to the present invention; Figure 3 This is a schematic diagram of the overall structure of an emergency docking assembly device for fire hoses according to the present invention; Figure 4 This is a schematic diagram of the hose and connector structure of an emergency docking assembly device for fire hoses according to the present invention. Figure 5 This is a schematic diagram of the flow square tube and the distributed structure of the piercing mechanism of an emergency docking assembly device for fire hoses according to the present invention; Figure 6 This is a schematic diagram of the water-separating groove and the distributed structure of the operation box of the emergency docking assembly device for fire hoses according to the present invention; Figure 7 This is a schematic diagram of a partially distributed structure of an emergency docking and assembly device for fire hoses according to the present invention; Figure 8 This is a schematic diagram of the multi-state structure of an emergency docking assembly device for fire hoses according to the present invention; Figure 9 This is a cross-sectional structural diagram of an emergency docking and assembly device for fire hoses according to the present invention.

[0019] The attached figures are labeled as follows: Hose-100, Clamp-110, Connector-200, Connector Body-210, Connector Pipe-220, Locking Arc Block-230, Threaded Hole-240, Waterproof Groove-300, Snap-fit ​​Arc Groove-310, Mounting Port-330, Control Box-400, Second Mounting Port-410, Rotating Hole-420, Operating Mechanism-500, Drive Gear-510, Control Rod-520, Hexagonal Operating Hole-521, Driven Gear Ring-530, Diverting Square Tube-600, Rotating Circular Groove-610, Diverting Pipe-620, Puncture Mechanism-700, Rotating Tube-710, Connecting Hole-711, Limiting Plate-720, Sealing Ring-730, Limiting Ring Block-740, Threaded Tube-750, Conical Puncture Head-760, Connecting Slot Hole-761, Waterproof Adhesive Strip-800. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Although the steps in this invention are arranged by reference numerals, this is not intended to limit the order of the steps. Unless the order of the steps is explicitly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" as used herein refers to and covers any and all possible combinations of one or more of the associated listed items.

[0022] Example like Figures 1-9 As shown, a method for emergency connection and assembly of a fire hose includes the following steps: S1. Secondary Assembly: When water seepage occurs at the joint of hose 100 during fire extinguishing, adjust the angle of hose 100 so that the threaded hole 240 of connector 200 faces upward. Then, align the two piercing mechanisms 700 above the threaded hole 240 and rotate the two piercing mechanisms 700 to lock the threaded tube 750 of the piercing mechanism 700 with the threaded hole 240. At this time, the diversion square tube 600 connects the threaded holes 240 at both ends of the hose 100 joint to achieve pressure reduction and diversion, while also achieving circumferential limiting to prevent the two connectors 200 from disengaging. Then, adjust the angle of hose 100 again so that the water-blocking tank 300 is below hose 100 to hold water. S2, Phased Assembly: When the leakage at the joint of the hose 100 worsens, assemble another device in the same manner as in S1, locking the new puncture mechanism 700 onto the threaded hole 240 at the top. This achieves a second diversion while simultaneously connecting the two water-blocking grooves 300 to form a closed space, preventing further leakage.

[0023] This invention, through a two-stage assembly and phased assembly method, can quickly reduce the amount of water seepage when leakage occurs at the joint of the hose 100, preventing the decrease in water pressure at the outlet from affecting fire extinguishing and the expansion of the damaged area. Simultaneously, when the damage at the joint of the hose 100 expands, there is no need to stop the water supply and replace the connector 100 and hose 200; the phased assembly quickly prevents the seepage from worsening, and the entire process effectively handles the seepage, preventing impact on the external environment. Specifically, when water seeps at the joint of the hose 100 during fire extinguishing, initially only a small amount, the threaded tubes 750 of the two puncture mechanisms 700 are locked to the threaded holes 240 at both ends of the hose 100 via method S1. This allows the diversion square tube 600 to connect the threaded holes 240 at both ends of the hose 100 joint for diversion. Water flows in stages from the hose 100 joint and also from inside the diversion square tube 600, effectively reducing pressure at the hose 100 joint. With reduced pressure, the amount of water seepage is significantly reduced. Minor damage at the joint will not cause the damage to expand rapidly due to excessive water pressure, and it can also prevent the water pressure at the outlet from decreasing and affecting firefighting. In addition, this secondary assembly method can also achieve circumferential limiting to prevent the two connectors 200 from rotating and separating relative to each other. At the same time, if the damage at the joint of the hose 100 expands, and the leakage is too large and has affected the water pressure at the outlet and firefighting, there is no need to stop the water supply and replace the connector 100 and hose 200. It is only necessary to assemble the same device again in the S1 method through a staged assembly. This not only diverts the flow again to reduce the pressure at the damaged point, but also allows the two water-proof grooves 300 to be joined together to form a new closed space, thereby preventing the leakage from getting worse and avoiding affecting the water pressure at the outlet and firefighting. The process can effectively deal with the leakage water. During the secondary assembly, the leakage is greatly reduced, and one water-proof groove 300 can hold water. During the staged assembly, the two water-proof grooves 300 form a closed space, and the leakage water cannot flow out, thus comprehensively avoiding impact on the external environment.

[0024] Furthermore, the locking method of the piercing mechanism 700 is as follows: the control lever 520 is rotated by an electric wrench, which causes the drive gear 510 to rotate; the drive gear 510 drives the two driven gear rings 530 and the piercing mechanism 700 to rotate through meshing, so as to realize the piercing first and then locking, and simultaneously lock the threaded tubes 750 and threaded holes 240 of the two piercing mechanisms 700 to avoid jamming.

[0025] This invention, through the locking method of the piercing mechanism 700, achieves both rapid locking and connection of the piercing mechanism 700 and simultaneous piercing and locking of two piercing mechanisms 700, avoiding the tilting and jamming problem caused by the two piercing mechanisms 700 being out of sync. Specifically, when locking, it is not necessary to rotate and lock each piercing mechanism 700 individually. Only an external electric wrench is needed to drive the control rod 520 and the drive gear 510 to rotate. Under the action of meshing, the two driven gear rings 530 and the piercing mechanism 700 can rotate synchronously, achieving synchronous piercing and locking. In this way, without locking each one individually, the locking speed can be accelerated through the meshing transmission ratio, achieving rapid locking and connection of the piercing mechanism 700. At the same time, since the two piercing mechanisms 700 pierce and lock synchronously, it will not cause unevenness on both sides, thus avoiding the jamming problem.

[0026] An apparatus for the above-mentioned emergency docking assembly method of fire hose includes a connector 200 comprising two snap-fit ​​connector bodies 210, one end of which is fixedly connected to a connector tube 220, and the end of the connector tube 220 is symmetrically provided with locking arc blocks 230, and the locking arc blocks 230 are provided with threaded holes 240; the hose 100 is fixed to the outside of the connector tube 220 by clamps 110.

[0027] It is worth noting that the snap-fit ​​connector body 210 is a mature existing technology. The docking and connection are achieved by inserting two snap-fit ​​connector bodies 210 into each other and then rotating them. It will not be described in detail here.

[0028] Furthermore, the water-blocking groove 300 has snap-fit ​​arc grooves 310 at both ends, and the bottom of the water-blocking groove 300 has an installation port 330 on which a diversion square tube 600 is fixedly installed; the two ends of the diversion square tube 600 are closed and a diversion pipe 620 is provided inside; the top of the diversion square tube 600 has a symmetrical through-hole rotating circular groove 610, and the rotating circular groove 610 is connected to the diversion pipe 620.

[0029] Furthermore, the puncture mechanism 700 includes a rotating tube 710, which is rotatably connected to a rotating circular groove 610. A connecting hole 711 is provided through the side wall of the rotating tube 710. A limiting disc 720 is fixedly closed at one end of the rotating tube 710, and a limiting ring block 740 is fixedly provided at the other end. A threaded tube 750 is fixedly connected to one end of the rotating tube 710 near the limiting ring block 740. A conical puncture head 760 is fixedly connected to one end of the threaded tube 750. A plurality of connecting slots 761 are evenly provided on the conical puncture head 760.

[0030] The present invention utilizes the structural cooperation of the puncture mechanism 700, the water-blocking groove 300, and the diversion square tube 600. When the puncture mechanism 700 rotates and presses, the conical puncture head 760 can first puncture the flexible tube 100 above the threaded port 240. Then, the water-blocking groove 3000 is locked onto the connector 200 by the screw connection between the threaded tube 750 and the threaded port 240. At the same time, the diversion square tube 600 is connected to the threaded ports 240 on both sides by rotating the tube 710 and the threaded tube 750, thereby achieving pressure reduction and diversion.

[0031] It is worth noting that the threaded setting of the threaded port 240 allows the conical piercing head 760 to puncture the hose 100 and utilize part of the material of the hose 100 to improve the stability and sealing of the locking mechanism. This will not be described in detail here.

[0032] Furthermore, both the limiting disc 720 and the limiting ring block 740 are fixedly provided with sealing rings 730 on the side near the diversion square tube 600.

[0033] It is worth noting that the sealing ring 730 can ensure the waterproof sealing performance of the puncture mechanism 700 and the rotating groove 610 in rotational connection. Alternatively, a rotating sealing ring can be used, which will not be described in detail here.

[0034] Furthermore, the bottom of the water-blocking trough 300 is provided with an operation box 400, the top of the operation box 400 is provided with a second mounting port 410, and the second mounting port 410 is fixedly connected to the bottom of the water-blocking trough 300; the bottom of the operation box 400 is provided with a through rotating hole 420.

[0035] Furthermore, it also includes an operating mechanism 500, which includes a control rod 520; the control rod 520 is rotatably connected to the rotating hole 420, one end of the control rod 520 is fixedly connected to the drive gear 510, and the other end of the control rod 520 is provided with a hexagonal operating hole 521; one end of the piercing mechanism 700 is fixedly connected to a driven gear ring 530, and the driven gear ring 530 meshes with the drive gear 510.

[0036] Furthermore, the number of teeth of the driving gear 510 is greater than the number of teeth of the driven gear ring 530.

[0037] The control lever 520 and the drive gear 510 are rotated by external equipment, and under the meshing action, the driven gear ring 530 and the puncture mechanism 700 are rotated synchronously.

[0038] Furthermore, waterproof adhesive strips 800 are fixedly installed at the opening of the water-blocking groove 300 and on the snap-fit ​​arc groove 310; when the two water-blocking grooves 300 are joined together, the upper and lower waterproof adhesive strips 800 are joined together, and the snap-fit ​​arc groove 310 is snapped onto the outside of the locking arc block 230.

[0039] It is worth noting that the waterproof strip 800 has a certain degree of elasticity, so it can be compressed. While ensuring the sealing performance, it can ensure that the two water-proof grooves 300 can close to form a closed space, and the snap-fit ​​arc groove 310 can be effectively snapped onto the outside of the locking arc block 230.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A method for emergency connection and assembly of a fire hose, characterized in that, Includes the following steps: S1. Secondary docking assembly: When water seepage occurs at the docking point of the hose (100) during fire extinguishing, adjust the angle of the hose (100) so that the threaded hole (240) of the connector (200) faces upward. Then, align the two piercing mechanisms (700) with the top of the threaded hole (240) and rotate the two piercing mechanisms (700) so that the threaded tube (750) of the piercing mechanism (700) locks with the threaded hole (240). At this time, the diversion square tube (600) connects the threaded holes (240) at both ends of the hose (100) docking point to achieve pressure reduction and diversion, while also achieving circumferential limiting to prevent the two connectors (200) from separating. And readjust the angle of the hose (100) so that the water trap (300) is below the hose (100) to hold water; S2, Phased Assembly: When the leakage at the joint of the hose (100) worsens, another device is assembled in the same manner as in S1. The new puncture mechanism (700) is locked on the threaded hole (240) at the top, so as to achieve diversion again and make the two water-blocking grooves (300) join together to form a closed space to prevent the leakage from worsening.

2. The emergency connection and assembly method for fire hoses according to claim 1, characterized in that, The locking method of the piercing mechanism (700) is as follows: the control lever (520) is rotated by the electric wrench, which causes the drive gear (510) to rotate; the drive gear (510) drives the two driven gear rings (530) and the piercing mechanism (700) to rotate through meshing, so as to realize the piercing first and then locking simultaneously, and lock the threaded tubes (750) and threaded holes (240) of the two piercing mechanisms (700) simultaneously, while avoiding jamming.

3. An apparatus for the emergency connection and assembly method of fire hoses according to any one of claims 1 to 2, characterized in that, The connector (200) includes two snap-fit ​​connector bodies (210), one end of which is fixedly connected to a connector tube (220). The ends of the connector tube (220) are symmetrically fixed with locking arc blocks (230), and threaded holes (240) are opened through the locking arc blocks (230). The hose (100) is fixed to the outside of the connector tube (220) by a clamp (110).

4. The apparatus according to claim 3, characterized in that, The water-blocking groove (300) has snap-fit ​​arc grooves (310) at both ends, and an installation port (330) is opened at the bottom of the water-blocking groove (300) and a diversion square tube (600) is fixedly installed on the installation port (330); the two ends of the diversion square tube (600) are closed and a diversion pipe (620) is opened inside; the top of the diversion square tube (600) is symmetrically opened with a rotating circular groove (610), and the rotating circular groove (610) is connected to the diversion pipe (620).

5. The apparatus according to claim 4, characterized in that, The puncture mechanism (700) includes a rotating tube (710), which is rotatably connected to a rotating circular groove (610). A connecting hole (711) is provided through the side wall of the rotating tube (710). A limiting disc (720) is fixedly closed at one end of the rotating tube (710), and a limiting ring block (740) is fixedly provided at the other end. A threaded tube (750) is fixedly connected to one end of the rotating tube (710) near the limiting ring block (740). A conical puncture head (760) is fixedly connected to one end of the threaded tube (750). A plurality of connecting slots (761) are evenly provided on the conical puncture head (760).

6. The apparatus according to claim 5, characterized in that, Both the limiting disc (720) and the limiting ring block (740) are fixedly provided with sealing rings (730) on the side near the diversion square tube (600).

7. The apparatus according to claim 4, characterized in that, The bottom of the water-blocking trough (300) is provided with an operation box (400), and the top of the operation box (400) is provided with a second installation port (410), which is fixedly connected to the bottom of the water-blocking trough (300); the bottom of the operation box (400) is provided with a rotating hole (420).

8. The apparatus according to claim 7, characterized in that, It also includes an operating mechanism (500), which includes a control rod (520); the control rod (520) is rotatably connected to the rotating hole (420), one end of the control rod (520) is fixedly connected to the drive gear (510), and the other end of the control rod (520) is provided with a hexagonal operating hole (521); one end of the piercing mechanism (700) is fixedly connected to the driven gear ring (530), and the driven gear ring (530) meshes with the drive gear (510).

9. The apparatus according to claim 8, characterized in that, The number of teeth of the driving gear (510) is greater than the number of teeth of the driven gear ring (530).

10. The apparatus according to claim 4, characterized in that, Waterproof rubber strips (800) are fixedly installed at the opening of the water-proof groove (300) and on the snap-fit ​​arc groove (310); when the two water-proof grooves (300) are joined together, the upper and lower waterproof rubber strips (800) are joined together, and the snap-fit ​​arc groove (310) is snapped onto the outside of the locking arc block (230).

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