Quick release fire coupling

Abstract

The utility model relates to the technical field of fire fighting equipment, in particular to a quick-release type fire fighting connector, which comprises connector one, a first connector assembly, a second connector assembly, a cross bar, connector two and a fastening assembly, a plurality of U-shaped plug-in plates are evenly arranged on the inner wall of the interface of connector one, a plurality of first installation grooves and second installation grooves are evenly formed on the side wall of the interface of connector one, a third installation groove is further arranged between the first installation groove and the second installation groove, the cross bar is arranged in the third installation groove, the cross bar is connected with the first connector assembly and the second connector assembly, a plurality of plug blocks matched with the U-shaped plug-in plates are evenly arranged on the inner wall of the interface of connector two, a square hole is formed in the middle of the plug block, and the utility model has the advantages that the quick-release type fire fighting connector is limited by the first connector assembly and the second connector assembly, the connection between connector one and connector two is fastened by the fastening assembly, connector one and connector two are prevented from falling off, and the subsequent fire fighting rescue work is affected.

Description

Technical Field

[0001] This utility model relates to the technical field of fire-fighting equipment, and in particular to a quick-release fire-fighting coupling. Background Technology

[0002] A fire hose coupling is a type of fire-fighting equipment mainly used between fire hoses or fire nozzles. It connects hoses to each other, fire trucks, fire hydrants, and nozzles to facilitate the delivery of water or foam mixtures for fire extinguishing. It consists of a body, a sealing ring seat, a rubber sealing ring, and a retaining ring. The sealing ring seat has grooves for securing the hose.

[0003] Chinese patent CN222437321U discloses a quick-release fire hose coupling including a coupling one and a coupling two. The inner wall of the interface of the coupling one is provided with multiple L-shaped inserts around its circumference. The inner wall of the interface of the coupling two is provided with multiple hooks that cooperate with the L-shaped inserts around its circumference. The hook groove side wall of the hook is provided with a hollow block. A sliding plate is slidably connected in the hollow block. One side wall of the sliding plate is provided with a limiting rod that passes through the hollow block and is inserted into the hook groove of the hook. The other side wall of the sliding plate is provided with a connecting rod that passes through the coupling two. A ring handle is provided between the ends of each connecting rod and placed on the outside of the coupling two. By inserting the hook groove onto the horizontal plate of the L-shaped insert plate, and inserting the limiting rod into the limiting hole, the limiting rod can lock the hook onto the L-shaped insert plate. This method only uses the limiting rod for limiting (without other limiting mechanisms). When the limiting rod malfunctions, it may fall off, affecting subsequent fire rescue work. In addition, the connection between the first and second hooks is easily subjected to water pressure impact. This method has no external locking mechanism to restrict the connection, which may cause the first and second hooks to fall off, affecting fire rescue work. Utility Model Content

[0004] This utility model provides a quick-release fire hose coupling to solve the technical problems mentioned in the background art.

[0005] This utility model provides a quick-release fire-fighting coupling, which includes a coupling one, a first coupling assembly, a second coupling assembly, a crossbar, a coupling two, and a fastening assembly. Multiple U-shaped inserts are evenly arranged on the inner wall of the interface of the coupling one. Multiple first mounting grooves and second mounting grooves are evenly formed on the side wall of the interface of the coupling one. The first mounting groove is located at the front end of the U-shaped insert, and the second mounting groove is located above the middle of the U-shaped insert. A first fixing block is fixedly installed in the first mounting groove, and a second fixing block is fixedly installed in the second mounting groove. The fixing block has a third mounting slot between the first and second mounting slots. The first fastening assembly is located in the first mounting slot, the second fastening assembly is located in the second mounting slot, and the crossbar is located in the third mounting slot. The crossbar connects the first fastening assembly and the second fastening assembly. Multiple inserts that mate with the U-shaped insert plate are evenly arranged on the inner wall of the interface of the second fastening assembly. The side wall of the insert has a chamfer, and a square hole is opened in the middle of the insert. The fastening assembly is located at the interface between the first fastening assembly and the second fastening assembly.

[0006] Optionally, the first fastening assembly includes a stop block, a first spring, a first connecting rod, and a first connecting block. The stop block and the first connecting block are slidably disposed in the first mounting groove. The stop block is disposed below the first fixing block, and the first connecting block is disposed above the first fixing block. One end of the first spring is connected to the first fixing block, and the other end of the first spring is connected to the stop block. The stop block is disposed on the front side of the U-shaped insert.

[0007] Optionally, the second interface component includes a limiting block, a second spring, a second connecting rod, and a second connecting block. The limiting block and the second connecting block are slidably disposed in the second mounting groove. The limiting block is disposed below the second fixing block and passes through the top of the U-shaped insert. The second connecting block is disposed above the second fixing block. One end of the second spring is connected to the second fixing block, and the other end of the second spring is connected to the limiting block.

[0008] Optionally, the side end of the stop is provided with a chamfer.

[0009] Optionally, one end of the crossbar is connected to the first connecting block, and the other end of the crossbar is connected to the second connecting block. A lifting rod is rotatably mounted on the crossbar.

[0010] Optionally, the fastening assembly includes a first fastening arc plate and a second fastening arc plate. The first fastening arc plate has first threaded holes on both sides, and the second fastening arc plate has second threaded holes on both sides that mate with the first threaded holes. The first fastening arc plate and the second fastening arc plate are fastened to the interface between the first and second fastening clips by bolts and nuts.

[0011] Optionally, both the first and second connectors are equipped with fire water pipes inside, and the ends of the fire water pipes are equipped with waterproof sealing rings. Beneficial effects

[0012] This quick-release fire-fighting coupling includes a coupling one, a first coupling assembly, a second coupling assembly, a crossbar, a coupling two, and a fastening assembly. Multiple U-shaped inserts are evenly arranged on the inner wall of the coupling one's interface. Multiple first and second mounting slots are evenly formed on the side wall of the coupling one's interface. The first mounting slot is located at the front end of the U-shaped insert, and the second mounting slot is located above the middle of the U-shaped insert. A first fixing block is fixedly installed in the first mounting slot, and a second fixing block is fixedly installed in the second mounting slot. A third mounting slot is also provided between the first and second mounting slots. The first coupling assembly is disposed within the first mounting slot. The second fastening assembly is disposed in the second mounting groove, and the crossbar is disposed in the third mounting groove. The crossbar connects the first fastening assembly and the second fastening assembly. Multiple inserts that cooperate with the U-shaped insert plate are evenly disposed on the inner wall of the interface of the second fastening assembly. The side wall of the insert is provided with a chamfer, and a square hole is opened in the middle of the insert. The fastening assembly is disposed at the interface of the first fastening assembly and the second fastening assembly. In this invention, a quick-release fire-fighting fastening assembly is doubly limited by the first fastening assembly and the second fastening assembly, and the fastening assembly is used to fasten the connection between the first fastening assembly and the second fastening assembly to prevent the first fastening assembly and the second fastening assembly from falling off and affecting subsequent fire rescue work. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first-view structural schematic diagram of a quick-release fire hose coupling provided by this utility model;

[0015] Figure 2 This is a structural schematic diagram of the fastening component in a quick-release fire hose coupling provided by this utility model;

[0016] Figure 3 This is a first-view structural diagram of a quick-release fire hose coupling provided by this utility model;

[0017] Figure 4 yes Figure 3 A magnified view of a portion of region A in the middle;

[0018] Figure 5 This is a second-view structural diagram of the quick-release fire hose coupling provided by this utility model;

[0019] Figure 6 This is an exploded schematic diagram of the first fastener in a quick-release fire hose coupling provided by this utility model;

[0020] Figure 7 This is a first-view structural schematic diagram of the second fastener in a quick-release fire hose coupling provided by this utility model.

[0021] Figure label:

[0022] 100. Connector 1; 110. U-shaped insert plate; 120. First mounting slot; 121. First fixing block; 130. Second mounting slot; 131. Second fixing block; 140. Third mounting slot; 150. Crossbar; 151. Pull rod; 160. Fire water pipe;

[0023] 200, First buckle assembly; 210, Stop block; 220, First spring; 230, First connecting rod; 240, First connecting block;

[0024] 300. Second buckle assembly; 310. Limiting block; 320. Second spring; 330. Second connecting rod; 340. Second connecting block;

[0025] 400. Connector II; 410. Insert block; 411. Square hole;

[0026] 500, Fastening assembly; 510, First fastening arc plate; 511, First threaded hole; 520, Second fastening arc plate; 521, Second threaded hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to the present utility model are shown in the drawings, not all of the structures. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] Please see Figures 1 to 7 This utility model discloses a quick-release fire-fighting coupling, comprising a coupling one 100, a first coupling assembly 200, a second coupling assembly 300, a crossbar 150, a coupling two 400, and a fastening assembly 500. Multiple U-shaped inserts 110 are evenly arranged on the inner wall of the interface of the coupling one 100. Multiple first mounting grooves 120 and second mounting grooves 130 are evenly opened on the side wall of the interface of the coupling one 100. The first mounting groove 120 is located at the front end of the U-shaped insert 110, and the second mounting groove 130 is located above the middle of the U-shaped insert 110. A first fixing block 121 is fixedly installed in the first mounting groove 120, and a second fixing block 131 is fixedly installed in the second mounting groove 130. A third mounting groove 140 is provided between the mounting groove 120 and the second mounting groove 130. The first fastening assembly 200 is disposed in the first mounting groove 120, the second fastening assembly 300 is disposed in the second mounting groove 130, and the crossbar 150 is disposed in the third mounting groove 140. The crossbar 150 connects the first fastening assembly 200 and the second fastening assembly 300. A plurality of insert blocks 410 that cooperate with the U-shaped insert plate 110 are evenly disposed on the inner wall of the interface of the second fastening assembly 400. The side wall of the insert block 410 is provided with a chamfer, and a square hole 420 is opened in the middle of the insert block 410. The fastening assembly 500 is disposed at the interface of the first fastening assembly 100 and the second fastening assembly 400.

[0030] Furthermore, when a user needs to perform fire extinguishing actions using a quick-release fire-fighting coupling of this utility model, firstly, the user aligns the interfaces of coupling one 100 and coupling two 400 together, inserting the plug 410 into the inside of coupling one 100. Then, the user rotates coupling two 400, and inserting the plug 410 into the U-shaped insert plate 110. At the same time, the first coupling assembly 200 and the second coupling assembly 300 cooperate to restrict the plug 410 within the U-shaped insert plate 110, thus connecting coupling one 100 and coupling two 400. After coupling one 100 and coupling two 400 are connected, the fastening assembly 500 is set at the interface of coupling one 100 and coupling two 400.

[0031] In this embodiment, the first fastening assembly 200 includes a stop block 210, a first spring 220, a first connecting rod 230, and a first connecting block 240. The stop block 210 and the first connecting block 240 are slidably disposed within the first mounting groove 120. The stop block 210 is disposed below the first fixing block 121, and the first connecting block 240 is disposed above the first fixing block 121. One end of the first spring 220 is connected to the first fixing block 121, and the other end of the first spring 220 is connected to the stop block 210. The side end of the stop block 210 is provided with a chamfer. The stop block 210 is disposed within the U-shaped mounting groove 120. On the front side of the U-shaped insert plate 110, the second fastening assembly 300 includes a limiting block 310, a second spring 320, a second connecting rod 330, and a second connecting block 340. The limiting block 310 and the second connecting block 340 are slidably disposed in the second mounting groove 130. The limiting block 310 is disposed below the second fixing block 131 and passes through the top of the U-shaped insert plate 110. The second connecting block 340 is disposed above the second fixing block 131. One end of the second spring 320 is connected to the second fixing block 131, and the other end of the second spring 320 is connected to the limiting block 310.

[0032] During the rotation of the second buckle 400, the insert block 410 rotates along with it. When the side guide angle of the insert block 410 contacts the side guide angle of the stop block 210, the stop block 210 is squeezed by the insert block 410, and the stop block 210 moves towards the outer wall of the first buckle 100. This causes the first connecting rod 230 and the first connecting block 240 to move towards the outer wall of the first buckle 100, which in turn causes the crossbar 150 to move towards the outer wall of the first buckle 100, which in turn causes the second connecting block 340, the second connecting rod 330, and the limiting block 310 to move towards the outer wall of the first buckle 100. The insert block 410 continues to rotate and enters the U-shaped insert plate 110. During the movement of the stop block 210 and the limiting block 310 towards the outer wall of the first buckle 100, the first spring is compressed. When the first spring 220 and the second spring 320 are in the compressed state, and the front end of the insert block 410 contacts the bottom end inside the U-shaped insert plate 110, the insert block 410 is fully inserted into the U-shaped insert plate 110. The insert block 410 no longer presses against the stop block 210. The first spring 220 and the second spring 320 change from the compressed state to the initial state. The first spring 220 springs the first buckle assembly 200 back to the initial position, and the second spring 320 springs the second buckle assembly 300 back to the initial position. The stop block 210 limits the insert block 410 inside the U-shaped insert plate 110. The limiting block 310 is inserted into the square hole 420 on the insert block 410 to achieve secondary limiting, connecting the buckle one 100 and the buckle two 400 together. By setting the bevel angle, it is easy for the insert block 410 to press against the stop block 210.

[0033] In this embodiment, the fastening assembly 500 includes a first fastening arc plate 510 and a second fastening arc plate 520. The first fastening arc plate 510 has first threaded holes 511 on both sides, and the second fastening arc plate 520 has second threaded holes 521 on both sides that mate with the first threaded holes 511. The first fastening arc plate 510 and the second fastening arc plate 520 are fastened to the interface between the first fastener 100 and the second fastener 400 by bolts and nuts.

[0034] After the connection of the first buckle 100 and the second buckle 400 is completed, the user places the first fastening arc plate 510 and the second fastening arc plate 520 at the connection between the first buckle 100 and the second buckle 400, passes the bolt through the first threaded hole 511 and the second threaded hole 521, and fixes it with a nut. The fastening assembly 500 is used to fasten the connection between the first buckle 100 and the second buckle 400 to prevent the connection between the first buckle 100 and the second buckle 400 from being broken due to excessive water pressure. The first buckle assembly 200, the second buckle assembly 300 and the crossbar 150 are respectively placed in the first mounting groove 120, the second mounting groove 130 and the third mounting groove 140 to avoid hindering the fastening assembly 500 from fastening the connection between the first buckle 100 and the second buckle 400.

[0035] In this embodiment, one end of the crossbar 150 is connected to the first connecting block 240, and the other end of the crossbar 150 is connected to the second connecting block 340. A lifting rod 151 is rotatably provided on the crossbar 150.

[0036] After the fire rescue work is completed, the fastening assembly 500 is first removed, the first fastening arc plate 510 and the second fastening arc plate 520 are removed, and the lifting rod 151 is rotated. The user pulls the lifting rod 151 to move the crossbar 150 upward, which in turn moves the stop block 210 and the limit block 310 upward. The stop block 210 and the limit block 310 release their limiting effect on the insert block 410. The user rotates the second buckle 400 in the opposite direction to make the insert block 410 exit the interior of the U-shaped insert plate 110. The first buckle 100 and the second buckle 400 can then be disconnected. The lifting rod 151 is designed to facilitate the user to pull the crossbar 150.

[0037] In this embodiment, both the first buckle 100 and the second buckle 400 are equipped with fire water pipes 160, and the ends of the fire water pipes 160 are equipped with waterproof sealing rings.

[0038] Among them, the installation of a waterproof sealing ring can prevent water leakage when the fire water pipe is running at 160mm.

[0039] This quick-release fire hose coupling includes a coupling one 100, a first coupling assembly 200, a second coupling assembly 300, a crossbar 150, a coupling two 400, and a fastening assembly 500. Multiple U-shaped inserts 110 are evenly arranged on the inner wall of the interface of the coupling one 100. Multiple first mounting grooves 120 and second mounting grooves 130 are evenly opened on the side wall of the interface of the coupling one 100. The first mounting groove 120 is located at the front end of the U-shaped insert 110, and the second mounting groove 130 is located above the middle of the U-shaped insert 110. A first fixing block 121 is fixedly installed in the first mounting groove 120, and a second fixing block 131 is fixedly installed in the second mounting groove 130. A third mounting groove 140 is also provided between the first mounting groove 120 and the second mounting groove 130. The first coupling assembly 200 is disposed within the first mounting groove 120. The second fastening assembly 300 is disposed in the second mounting groove 130, and the crossbar 150 is disposed in the third mounting groove 140. The crossbar 150 connects the first fastening assembly 200 and the second fastening assembly 300. Multiple insert blocks 410 that cooperate with the U-shaped insert plate 110 are evenly disposed on the inner wall of the interface of the second fastening assembly 400. The side wall of the insert block 410 is provided with a chamfer, and a square hole 420 is opened in the middle of the insert block 410. The fastening assembly 500 is disposed at the interface of the first fastening assembly 100 and the second fastening assembly 400. In this invention, a quick-release fire-fighting fastening assembly is doubly limited by the first fastening assembly 200 and the second fastening assembly 300, and the fastening assembly 500 fastens the connection between the first fastening assembly 100 and the second fastening assembly 400 to prevent the first fastening assembly 100 and the second fastening assembly 400 from falling off and affecting subsequent fire rescue work.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick-release fire hose coupling, characterized in that, include: The first fastener has multiple U-shaped inserts evenly arranged on the inner wall of its interface, and multiple first and second mounting slots evenly opened on the side wall of its interface. The first mounting slot is opened at the front end of the U-shaped insert, and the second mounting slot is opened above the middle of the U-shaped insert. A first fixing block is fixedly installed in the first mounting slot, and a second fixing block is fixedly installed in the second mounting slot. A third mounting slot is also provided between the first and second mounting slots. A first fastening assembly is disposed within the first mounting slot; The second fastening assembly is disposed within the second mounting slot; A crossbar, which is disposed in the third mounting groove, and connects the first buckle assembly and the second buckle assembly; The second connector has multiple insert blocks evenly arranged on the inner wall of its interface, which cooperate with the U-shaped insert plate. The side walls of the insert blocks are provided with chamfers, and the middle of the insert blocks is provided with square holes. A fastening assembly is disposed at the interface between the first and second latches.

2. The quick-release fire-fighting coupling according to claim 1, characterized in that, The first fastening assembly includes a stop block, a first spring, a first connecting rod, and a first connecting block. The stop block and the first connecting block are slidably disposed in the first mounting groove. The stop block is disposed below the first fixing block, and the first connecting block is disposed above the first fixing block. One end of the first spring is connected to the first fixing block, and the other end of the first spring is connected to the stop block. The stop block is disposed on the front side of the U-shaped insert.

3. A quick-release fire-fighting coupling according to claim 2, characterized in that, The second fastening assembly includes a limiting block, a second spring, a second connecting rod, and a second connecting block. The limiting block and the second connecting block are slidably disposed in the second mounting groove. The limiting block is disposed below the second fixing block and passes through the top of the U-shaped insert. The second connecting block is disposed above the second fixing block. One end of the second spring is connected to the second fixing block, and the other end of the second spring is connected to the limiting block.

4. A quick-release fire hose coupling according to claim 2, characterized in that, The side end of the stop is provided with a chamfer.

5. A quick-release fire hose coupling according to claim 3, characterized in that, One end of the crossbar is connected to the first connecting block, and the other end of the crossbar is connected to the second connecting block. A lifting rod is rotatably mounted on the crossbar.

6. A quick-release fire hose coupling according to claim 1, characterized in that, The fastening assembly includes a first fastening arc plate and a second fastening arc plate. The first fastening arc plate has first threaded holes on both sides, and the second fastening arc plate has second threaded holes on both sides that mate with the first threaded holes. The first fastening arc plate and the second fastening arc plate are fastened to the interface between the first and second fastening clips by bolts and nuts.

7. A quick-release fire hose coupling according to claim 1, characterized in that, Both the first and second connectors are equipped with fire water pipes inside, and the ends of the fire water pipes are equipped with waterproof sealing rings.

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