Hot water insulation type PPR water supply pipe

Abstract

The utility model relates to the technical field of building water supply and drainage, specifically relates to a hot water heat preservation type PPR water supply pipe, including PPR pipe, and the flange of fixed connection in PPR pipe outer end surface, prevent leakage mechanism, including be used for collecting the water storage subassembly of leakage of flange junction, the buoyancy of leakage in water storage subassembly can be with drive assembly, the junction of the flange can be sealed with the sealing assembly of the thrust of drive assembly to leakage, and be used for automatically locking the locking assembly of drive assembly and sealing assembly sealing state. The utility model discloses through setting prevent leakage mechanism, not only can in the junction of flange leak when, automatically drive two sets of sealing block to carry out sealing to leakage, still can automatically lock the sealing state of sealing block, prevent its because water supply pipe body vibration or water pressure fluctuation leads to sealing loose, to realize guarantee hot water delivery security while, ensure the effect of water supply pipe body use reliability.

Description

Technical Field

[0001] This utility model relates to the field of building water supply and drainage technology, specifically to a hot water insulation type PPR water supply pipe. Background Technology

[0002] PPR material has excellent high temperature resistance. Conventional hot water PPR pipes can withstand long-term operating temperatures up to 70℃ and short-term temperatures up to 95℃. They also have strong pressure resistance, which can meet the pressure and temperature requirements of hot water systems in homes and commercial settings such as hotels and office buildings, preventing pipe deformation and rupture caused by high temperature and high pressure.

[0003] In the prior art, the patent publication number CN217422596U includes a tube body and a fixing ring. The tube body is fixed to the wall by the fixing ring. The outer side of the tube body is provided with a heat-absorbing layer, and the inner side of the tube body is provided with a heat-insulating layer. The inner side of the heat-insulating layer is coated with an anti-corrosion layer. The tube body is provided with a protruding post, and a slider is slidably connected to the protruding post. A first spring is placed inside the protruding post, and the two ends of the first spring are fixedly connected to the protruding post and the slider, respectively. The protruding post is provided with a heat-insulating mechanism for heat-insulating the tube body.

[0004] The flange in this device is a detachable sealing joint. Under the influence of factors such as gasket aging, insufficient bolt pre-tightening, pipe thermal deformation or vibration, there is usually a risk of leakage at the connection. If the leakage point is close to electrical equipment such as wires, sockets or switches in the wall, it may cause short circuit or leakage, thereby causing electric shock or electrical fire. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a hot water insulation type PPR water supply pipe, which can effectively solve the problem that the flange is a detachable sealing joint in the existing technology, and there is usually a risk of leakage at the connection under the influence of factors such as gasket aging, insufficient bolt pre-tightening, pipe thermal deformation or vibration.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a hot water insulation type PPR water supply pipe, including a water supply pipe body, including a PPR pipe, and a flange fixedly connected to the outer end face of the PPR pipe;

[0008] The leak prevention mechanism includes a water storage assembly for collecting leakage at the flange connection, a drive assembly capable of converting the buoyancy of the leakage in the water storage assembly into vertical thrust, a sealing assembly capable of sealing the flange connection with the thrust of the drive assembly, and a locking assembly for automatically locking the drive assembly and the sealing assembly in their sealing states.

[0009] The water storage component is located directly below the flange connection. There are two sets of the drive component and the sealing component. The two sets of the drive component are located on both sides of the water storage component, and the two sets of the sealing component are located on both sides of the flange. The locking component is located outside the drive component.

[0010] The water storage assembly includes a water tank fixedly installed at the bottom of the PPR pipe, an inlet connected to the top of the water tank for receiving leakage from the flange connection, and an outlet connected to the bottom of the water tank.

[0011] Furthermore, the water storage assembly also includes a rotating rod rotatably connected to the outer surface of the outlet, a swing rod fixedly sleeved on the outer surface of the rotating rod, a float fixedly installed at the other end of the swing rod, a transmission block hinged to the outer surface of the swing rod, a connecting rod hinged to the other end of the transmission block, and a plug hinged to the outer surface of the connecting rod and used in conjunction with the outlet.

[0012] Furthermore, the outer end face of the connecting rod is hinged to the outer end face of the water outlet, and the outer surface of the plug is in sliding contact with the inner wall of the water outlet;

[0013] When the leaking liquid at the flange connection enters the water storage tank through the inlet, the buoyancy drives the float to move upward, thereby causing the float to drive the rotating rod to rotate through the swing rod. Then, through the cooperation of the rotating rod and the transmission block, the connecting rod is driven to rotate around the hinge point. Finally, the connecting rod drives the plug to move out of the outlet, releasing the blockage.

[0014] Furthermore, the drive assembly includes a gear fixedly sleeved on the through end of the rotating rod, a rack meshing with the outer surface of the gear, a connecting column fixedly connected to the top of the rack, a trapezoidal block fixedly connected to the other end of the connecting column, inclined grooves formed on both sides of the trapezoidal block, and a limiting block fixedly connected to the outer surface of the water tank and used in conjunction with the rack.

[0015] Furthermore, the sealing assembly includes a force-bearing column movably connected to the inner wall of the inclined groove, a driven rod fixedly sleeved on the outer end face of the force-bearing column, a support column rotatably connected to the inner surface of the other end of the driven rod, a sealing block fixedly installed on the outer surface of the support column and used to seal the flange connection, a torsion spring sleeved on the through end of the support column, a fixing rod fixedly connected to the outer surface of the water tank, and a rotating column fixedly installed on the outer surface of the fixing rod and used in conjunction with the driven rod.

[0016] Furthermore, a rotating bearing sleeve and a sealing strip are installed at the connection between the rotating rod and the water storage tank. The rack is slidably connected to the inner surface of the limiting block. The driven rod is rotatably sleeved on the outer surface of the rotating column. The two ends of the torsion spring are fixedly connected to the driven rod and the support column, respectively.

[0017] When the rotating rod rotates, it can drive the rack to move upward along the limiting block through the gear. Then, through the cooperation of the rack and the connecting column, it drives the trapezoidal block to move synchronously, so that the trapezoidal block squeezes the force column through the inclined groove. Then, the force column drives the driven rod to rotate around the rotating column, and finally, the rotating column drives the sealing block to stick tightly to the flange through the support column.

[0018] Furthermore, the locking assembly includes a ratchet fixedly sleeved on the outer surface of the rotating rod, a pawl engaged with the outer surface of the ratchet, and a spring fixedly installed on the outer surface of the water tank and used in conjunction with the pawl.

[0019] Furthermore, the pawl is fixedly mounted on the outer surface of the water tank by a bearing, and the outer end face of the spring abuts against the pawl.

[0020] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0021] This utility model, by setting up a leak prevention mechanism, can not only automatically drive two sets of sealing blocks to seal the leak when leakage occurs at the flange connection, but also automatically lock the sealing state of the sealing blocks to prevent the seal from loosening due to vibration of the water supply pipe body or water pressure fluctuations. This achieves the effect of ensuring the safety of hot water delivery while ensuring the reliability of the water supply pipe body. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This utility model Figure 1 A magnified view of the structure at point A in the middle;

[0025] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged structural diagram of section B in the middle;

[0027] Figure 5 This is a schematic diagram of the overall structure of the sealing assembly in this utility model.

[0028] The labels in the diagram represent: 100, water supply pipe body; 110, PPR pipe; 120, flange; 200, leak prevention mechanism; 210, water storage assembly; 211, water storage tank; 212, water inlet; 213, water outlet; 214, rotating rod; 215, swing rod; 216, float; 217, transmission block; 218, connecting rod; 219, plug; 220, drive assembly; 22... 1. Gear; 222. Rack; 223. Connecting column; 224. Trapezoidal block; 225. Inclined groove; 226. Limiting block; 230. Sealing assembly; 231. Force-bearing column; 232. Driven rod; 233. Support column; 234. Sealing block; 235. Torsion spring; 236. Fixing rod; 237. Rotating column; 240. Locking assembly; 241. Ratchet; 242. Pawl; 243. Spring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] Example: A hot water insulation type PPR water supply pipe, see attached document. Figure 1 - Appendix Figure 5 ,include,

[0032] The water supply pipe body 100 includes a PPR pipe 110 and a flange 120 fixedly connected to the outer end face of the PPR pipe 110.

[0033] It should be noted that the PPR pipe 100 is a channel for transporting hot water. It can utilize the high temperature resistance, high pressure resistance, and hygienic and non-toxic properties of PPR material to ensure the stable transport of hot water in the pipe and avoid rupture due to high temperature and high pressure. The flange 120 is used to splice multiple sections of PPR pipe 110 into a complete hot water transport pipeline, thereby adapting to the needs of long-distance hot water transport.

[0034] The leak prevention mechanism 200 includes a water storage assembly 210 for collecting leakage at the flange 120 connection, a drive assembly 220 for converting the buoyancy of the leakage in the water storage assembly 210 into vertical thrust, a sealing assembly 230 for sealing the flange 120 connection with the thrust of the drive assembly 220, and a locking assembly 240 for automatically locking the drive assembly 220 and the sealing assembly 230 in a sealed state.

[0035] The water storage component 210 is located directly below the flange 120 connection. There are two sets of drive components 220 and sealing components 230. The two sets of drive components 220 are located on both sides of the water storage component 210, and the two sets of sealing components 230 are located on both sides of the flange 120. The locking component 240 is located outside the drive component 220.

[0036] The water storage assembly 210 includes a water storage tank 211 fixedly installed at the bottom of the PPR pipe 110, an inlet 212 connected to the top of the water storage tank 211 and used to receive leakage at the flange 120 connection, and an outlet 213 connected to the bottom of the water storage tank 211.

[0037] Specifically, the water storage assembly 210 also includes a rotating rod 214 rotatably connected to the outer surface of the outlet 213, a swing rod 215 fixedly sleeved on the outer surface of the rotating rod 214, a float 216 fixedly installed on the other end of the swing rod 215, a transmission block 217 hinged to the outer surface of the swing rod 215, a connecting rod 218 hinged to the other end of the transmission block 217, and a plug 219 hinged to the outer surface of the connecting rod 218 and used in conjunction with the outlet 213.

[0038] It should be noted that when leakage occurs at the flange 120 connection due to gasket aging or insufficient bolt pre-tightening, the leakage flows into the water storage tank 211 through the inlet 212. When the liquid level in the water storage tank 211 rises, the buoyancy pushes the float 216 upward, and then the float 216 drives the swing rod 215 to rotate around the rotating rod 214, thereby driving the rotating rod 214 to rotate synchronously. At the same time as the swing rod 215 rotates, it pulls the connecting rod 218 around the hinge point between the transmission block 217 and the outlet 213, and finally drives the plug 219 to slide out from the inner wall of the outlet 213, releasing the blockage of the outlet 213 and preventing the water storage tank 211 from overflowing.

[0039] Furthermore, the outer end face of the connecting rod 218 is hinged to the outer end face of the outlet 213, and the outer surface of the plug 219 slides in contact with the inner wall of the outlet 213.

[0040] When the leaking liquid at the flange 120 connection enters the water storage tank 211 through the inlet 212, the buoyancy drives the float 216 to move upward, thereby causing the float 216 to drive the rotating rod 214 to rotate through the swing rod 215. Then, through the cooperation of the rotating rod 214 and the transmission block 217, the connecting rod 218 is driven to rotate around the hinge point. Finally, the connecting rod 218 drives the plug 219 to move out of the outlet 213, releasing the blockage.

[0041] Preferably, the drive assembly 220 includes a gear 221 fixedly sleeved on the through end of the rotating rod 214, a rack 222 meshing with the outer surface of the gear 221, a connecting column 223 fixedly connected to the top of the rack 222, a trapezoidal block 224 fixedly connected to the other end of the connecting column 223, inclined grooves 225 formed on both sides of the trapezoidal block 224, and a limiting block 226 fixedly connected to the outer surface of the water tank 211 and used in conjunction with the rack 222.

[0042] It should be further explained that when the rotating rod 214 rotates, it drives the gear 221 to rotate synchronously, and through the gear 221, it drives the rack 222 to move vertically upward along the inner wall of the limiting block 226. Then, through the cooperation of the rack 222 and the connecting column 223, it drives the trapezoidal block 224 to move upward synchronously. At this time, the inclined grooves 225 on both sides move upward synchronously with the trapezoidal block 224.

[0043] It should be noted that the sealing assembly 230 includes a force-bearing column 231 movably connected to the inner wall of the inclined groove 225, a driven rod 232 fixedly sleeved on the outer end face of the force-bearing column 231, a support column 233 rotatably connected to the inner surface of the other end of the driven rod 232, a sealing block 234 fixedly installed on the outer surface of the support column 233 and used to seal the connection of the flange 120, a torsion spring 235 sleeved on the through end of the support column 233, a fixing rod 236 fixedly connected to the outer surface of the water tank 211, and a rotating column 237 fixedly installed on the outer surface of the fixing rod 236 and used in conjunction with the driven rod 232.

[0044] When the trapezoidal block 224 moves upward, it presses the force-bearing column 231 through the inner wall contour surface of the inclined groove 225, causing the force-bearing column 231 to slide along the inclined groove 225 and generate a horizontal thrust. This causes the force-bearing column 231 to drive the driven rod 232 to rotate around the rotating column 237. When the driven rod 232 rotates, it drives the support column 233 to move closer to the flange 120, thereby causing the support column 233 to drive the sealing block 234 to fit tightly against the connection of the flange 120. The sealing block 234 is made of elastic material and can fill the gaps on the flange surface. The torsion spring 235 is used to support the support column 233 to prevent the sealing block 234 from shifting its angle due to its own weight when it is not clamped to the flange 120. The torsion spring 235 can deform with the rotation of the support column 233, storing elastic potential energy to assist the sealing block 234 in subsequent reset.

[0045] Furthermore, a rotating bearing sleeve and a sealing strip are installed at the connection between the rotating rod 214 and the water tank 211. The rack 222 is slidably connected to the inner surface of the limiting block 226. The driven rod 232 is rotatably sleeved on the outer surface of the rotating column 237. The two ends of the torsion spring 235 are fixedly connected to the driven rod 232 and the support column 233, respectively.

[0046] When the rotating rod 214 rotates, it can drive the rack 222 to move upward along the limit block 226 through the gear 221. Then, through the cooperation of the rack 222 and the connecting column 223, it drives the trapezoidal block 224 to move synchronously. This causes the trapezoidal block 224 to squeeze the force column 231 through the inclined groove 225. Then, the force column 231 drives the driven rod 232 to rotate around the rotating column 237. Finally, the rotating column 237 drives the sealing block 234 to tightly adhere to the flange 120 through the support column 233.

[0047] Specifically, the locking assembly 240 includes a ratchet 241 fixedly sleeved on the outer surface of the rotating rod 214, a pawl 242 engaged with the outer surface of the ratchet 241, and a spring 243 fixedly installed on the outer surface of the water tank 211 and used in conjunction with the pawl 242.

[0048] It should be explained that when the rotating rod 214 rotates, it can drive the ratchet 241 to rotate synchronously. Under the elastic force of the spring 243, the pawl 242 can always maintain engagement with the ratchet 241, so that the ratchet 241 can only rotate in one direction along the direction in which the rotating rod 214 drives the gear 221 and rack 222 to move upward. This avoids the reverse rotation tendency of the rotating rod 214 due to pipeline vibration or water pressure fluctuation, thereby ensuring that the sealing effect does not loosen.

[0049] Preferably, the pawl 242 is fixedly mounted on the outer surface of the water tank 211 by a bearing, and the outer end face of the spring 243 abuts against the pawl 242.

[0050] When using,

[0051] Multiple sections of PPR pipe 110 are spliced ​​together through flange 120 to form a complete pipeline, and then hot water is transported through PPR pipe 110.

[0052] When leakage occurs at the connection of flange 120 due to gasket aging or insufficient bolt pre-tightening: the leakage flows into water storage tank 211 through inlet 212. When the liquid level in water storage tank 211 rises, it pushes float 216 to move upward. Then, float 216 drives swing rod 215 to rotate around rotating rod 214, so that rotating rod 214 rotates synchronously. Through transmission block 217, connecting rod 218 is pulled, so that plug 219 is removed from outlet 213 to release the blockage.

[0053] At the same time, the rotating rod 214 drives the gear 221 to rotate synchronously, and the gear 221 drives the rack 222 to move upward along the inner wall of the limiting block 226, so that the rack 222 drives the trapezoidal block 224 to move upward synchronously through the connecting column 223, and then the trapezoidal block 224 squeezes the force column 231 through the inclined groove 225.

[0054] At this time, the driven rod 232 is driven by the force-bearing column 231 to rotate around the rotating column 237, and then the driven rod 232 drives the support column 233 to move closer to the flange 120, so that the support column 233 drives the sealing block 234 to press tightly against the leakage point of the flange 120 and seal it.

[0055] Meanwhile, the torsion spring 235 deforms with the rotation of the support column 233 and drives the ratchet 241 to rotate synchronously through the rotating rod 214. The pawl 242 is engaged with the ratchet 241 under the action of the spring 243, which restricts the reverse rotation of the rotating rod 214 and ensures the stable sealing state of the sealing block 234.

[0056] When inspecting flange 120: Manually move pawl 242 away from ratchet 241 to release the lock on lever 214. At this time, all components will automatically return to their initial state by gravity, exposing flange 120 for easy inspection.

[0057] In summary, by setting up the leak prevention mechanism 200, not only can the two sets of sealing blocks 234 be automatically driven to seal the leak when leakage occurs at the connection of flange 120, but the sealing state of the sealing blocks 234 can also be automatically locked to prevent the seal from loosening due to vibration of the water supply pipe body 100 or water pressure fluctuation. This achieves the effect of ensuring the safety of hot water delivery while ensuring the reliability of the water supply pipe body 100.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hot water insulation type PPR water supply pipe, characterized in that, The water supply pipe body (100) includes a PPR pipe (110) and a flange (120) fixedly connected to the outer end face of the PPR pipe (110). The leak prevention mechanism (200) includes a water storage assembly (210) for collecting leakage at the flange (120) connection, a drive assembly (220) for converting the buoyancy of the leakage in the water storage assembly (210) into vertical thrust, a sealing assembly (230) for sealing the flange (120) connection with the thrust of the drive assembly (220), and a locking assembly (240) for automatically locking the drive assembly (220) and the sealing assembly (230) in a sealed state. The water storage component (210) is located directly below the flange (120) connection. The drive component (220) and the sealing component (230) are provided in two sets. The two sets of drive components (220) are located on both sides of the water storage component (210), and the two sets of sealing components (230) are located on both sides of the flange (120). The locking component (240) is located outside the drive component (220). The water storage assembly (210) includes a water tank (211) fixedly installed at the bottom of the PPR pipe (110), an inlet (212) connected to the top of the water tank (211) and used to receive leakage at the flange (120) connection, and an outlet (213) connected to the bottom of the water tank (211).

2. The hot water insulation type PPR water supply pipe according to claim 1, characterized in that, The water storage assembly (210) further includes a rotating rod (214) rotatably connected to the outer surface of the outlet (213), a swing rod (215) fixedly sleeved on the outer surface of the rotating rod (214), a float (216) fixedly installed on the other end of the swing rod (215), a transmission block (217) hinged to the outer surface of the swing rod (215), a connecting rod (218) hinged to the other end of the transmission block (217), and a plug (219) hinged to the outer surface of the connecting rod (218) and used in conjunction with the outlet (213).

3. A hot water insulation type PPR water supply pipe according to claim 2, characterized in that, The outer end face of the connecting rod (218) is hinged to the outer end face of the outlet (213), and the outer surface of the plug (219) slides in contact with the inner wall of the outlet (213). When the leaking liquid at the flange (120) connection enters the water storage tank (211) through the inlet (212), the buoyancy drives the float (216) to move upward, thereby causing the float (216) to drive the rotating rod (214) to rotate through the swing rod (215). Then, through the cooperation of the rotating rod (214) and the transmission block (217), the connecting rod (218) is driven to rotate around the hinge point. Finally, the connecting rod (218) drives the plug (219) to move out of the outlet (213), releasing the blockage.

4. A hot water insulation type PPR water supply pipe according to claim 3, characterized in that, The drive assembly (220) includes a gear (221) fixedly sleeved on the through end of the rotating rod (214), a rack (222) meshing with the outer surface of the gear (221), a connecting column (223) fixedly connected to the top of the rack (222), a trapezoidal block (224) fixedly connected to the other end of the connecting column (223), inclined grooves (225) formed on both sides of the trapezoidal block (224), and a limiting block (226) fixedly connected to the outer surface of the water tank (211) and used in conjunction with the rack (222).

5. A hot water insulation type PPR water supply pipe according to claim 4, characterized in that, The sealing assembly (230) includes a force-bearing column (231) movably connected to the inner wall of the inclined groove (225), a driven rod (232) fixedly sleeved on the outer end face of the force-bearing column (231), a support column (233) rotatably connected to the inner surface of the other end of the driven rod (232), a sealing block (234) fixedly installed on the outer surface of the support column (233) and used to seal the connection of the flange (120), a torsion spring (235) sleeved on the through end of the support column (233), a fixing rod (236) fixedly connected to the outer surface of the water tank (211), and a rotating column (237) fixedly installed on the outer surface of the fixing rod (236) and used in conjunction with the driven rod (232).

6. A hot water insulation type PPR water supply pipe according to claim 5, characterized in that, The connection between the rotating rod (214) and the water storage tank (211) is equipped with a rotating bearing sleeve and a sealing strip. The rack (222) is slidably connected to the inner surface of the limiting block (226). The driven rod (232) is rotatably sleeved on the outer surface of the rotating column (237). The two ends of the torsion spring (235) are fixedly connected to the driven rod (232) and the support column (233) respectively. When the rotating rod (214) rotates, it can drive the rack (222) to move upward along the limiting block (226) through the gear (221). Then, through the cooperation of the rack (222) and the connecting column (223), it drives the trapezoidal block (224) to move synchronously. This causes the trapezoidal block (224) to squeeze the force column (231) through the inclined groove (225). Then, the force column (231) drives the driven rod (232) to rotate around the rotating column (237). Finally, the rotating column (237) drives the sealing block (234) to tightly adhere to the flange (120) through the support column (233).

7. A hot water insulation type PPR water supply pipe according to claim 6, characterized in that, The locking assembly (240) includes a ratchet (241) fixedly sleeved on the outer surface of the rotating rod (214), a pawl (242) engaged with the outer surface of the ratchet (241), and a spring (243) fixedly installed on the outer surface of the water tank (211) and used in conjunction with the pawl (242).

8. A hot water insulation type PPR water supply pipe according to claim 7, characterized in that, The pawl (242) is fixedly mounted on the outer surface of the water tank (211) by a bearing, and the outer end face of the spring (243) abuts against the pawl (242).

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