Waterproof hammer diaphragm type component of expansion tank
By sliding the guide strip and guide plate together, and engaging the limiting plate with the expansion tank body, combined with multi-layer protective layers and a buffer structure, the problem of easy aging and cracking of the diaphragm is solved, enabling stable installation and quick replacement of the diaphragm assembly, and ensuring normal pressure regulation of the expansion tank system.
Patent Information
- Application Number
- CN202520114064.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The diaphragm is prone to aging and rupture in the expansion tank, leading to the mixing of gas and water, making it impossible to properly regulate the system pressure, and replacement is difficult.
A diaphragm component for preventing water hammer in expansion tanks was designed. Through the sliding connection of guide strips and guide plates, the engagement of the limiting plate with the main body of the expansion tank, combined with multi-layer protective layers and a buffer structure, the stable installation and quick replacement of the diaphragm assembly are ensured.
This improves the installation stability and service life of the diaphragm assembly, ensures normal system pressure regulation, and reduces damage to the diaphragm assembly and the difficulty of replacement.
Smart Images

Figure CN223563767U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of expansion tank, concretely to an expansion tank waterproof hammer diaphragm formula part. BACKGROUND
[0002] Expansion tank is used for buffering pressure fluctuation and containing expanded water in the system. In the closed water circulation system (such as heating system, solar water heating system etc.), the volume of water will expand or shrink with the change of temperature. When the water is heated and expanded, the expansion tank can contain the excess water to avoid the system pressure being too high.
[0003] In the prior art, the diaphragm is affected by water pressure, chemical erosion and temperature change for a long time, and is prone to aging, hardening and rupture. The diaphragm is not easy to replace quickly after aging and rupture, and the mixing of gas and water is easy to cause, so that the system pressure of the expansion tank cannot be normally adjusted. Based on this, the utility model designs an expansion tank waterproof hammer diaphragm formula part to solve the above problems. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing an expansion tank waterproof hammer diaphragm formula part to solve the problem that the diaphragm is not easy to replace quickly after aging and rupture, and the mixing of gas and water is easy to cause, so that the system pressure of the expansion tank cannot be normally adjusted.
[0005] To achieve the above object, the utility model provides the following technical scheme: an expansion tank waterproof hammer diaphragm formula part, including expansion tank main part, the bottom of expansion tank main part is fixedly connected with the supporting leg, the top of expansion tank main part is installed with the sealing cover, the bottom of sealing cover is provided with installation auxiliary mechanism, installation auxiliary mechanism includes limiting board, guide strip and built-in ring, the top of limiting board is fixedly connected with the guide rod, the top of guide rod is fixedly connected with the reinforcing ring, the inner ring surface of reinforcing ring is fixedly connected with diaphragm subassembly, the outer ring surface of diaphragm subassembly is fixedly connected with the extension strip, the bottom of extension strip is hinged with built-in ring, the outer ring surface of built-in ring is fixedly connected with the inner wall of expansion tank main part, the bottom of extension strip is fixedly connected with guide strip, the one side of guide strip is slidably connected with the guide plate, the one side of guide plate is fixedly connected with the inner wall of expansion tank main part.
[0006] Preferably, the inner rod and the outer rod of the guide rod are slidably connected, and the limiting board at the bottom of the guide rod is hingedly connected with the inner wall of the expansion tank main body.
[0007] Preferably, the diaphragm subassembly top is fixedly connected with the inflation nozzle, the inflation nozzle top is clamped with the air nozzle protection cover, and the air nozzle protection cover penetrates the top sidewall of the sealing cover.
[0008] Preferably, the diaphragm assembly comprises a protective layer one, a connecting layer and a protective layer two, the protective layer one is compounded with a reinforcing layer on one side, and the reinforcing layer is compounded with the connecting layer on one side.
[0009] Preferably, the connecting layer is compounded with the protective layer two on one side, and the thickness of the connecting layer is the same as that of the protective layer two.
[0010] Preferably, the diaphragm assembly is fixedly connected with a fixing ring on an outer ring surface, one end of a spring telescopic rod is overlapped on one side of the fixing ring, and the other end of the spring telescopic rod is fixedly connected with an arc-shaped plate.
[0011] Preferably, the arc-shaped plate is fixedly connected with an arc-shaped elastic sheet on one side, the arc-shaped elastic sheet is fixedly connected with a connecting strip on one side, and the arc-shaped plate is provided with a supporting strip on one side.
[0012] Preferably, the supporting strip is hingedly connected with a hinge piece at both ends, one end of the hinge piece is fixedly connected with the arc-shaped plate, one side of the other hinge piece is slidably connected with the connecting strip, and the connecting strip is fixedly connected with a guide plate on one side.
[0013] Compared with the prior art, the diaphragm assembly has the advantages that:
[0014] (1) The sliding connection between the guide strip and the guide plate can guide the placement of the diaphragm assembly inside the expansion tank body, the clamping of the limiting plate bottom and the expansion tank body can limit the installation position of the bottom of the diaphragm assembly, the clamping of the extension strip and the built-in ring can limit the installation position of the top of the diaphragm assembly, the stability of the diaphragm assembly during installation and use is improved, the diaphragm assembly can be quickly disassembled and replaced, the mixture of gas and water is avoided, and the normal adjustment of the pressure of the expansion tank system is ensured.
[0015] (2) The protective layer one and the protective layer two are arranged on the inner and outer sides of the diaphragm assembly respectively, the two sides of the diaphragm assembly can be protected, the damage of the diaphragm assembly during use is reduced, the service life of the diaphragm assembly is prolonged, the arc-shaped plate can be supported and protected by the supporting strip, and the diaphragm assembly can be buffered and protected on one side by the spring telescopic rod and the arc-shaped elastic sheet, so that the elastic deformation of the diaphragm assembly can be buffered together, and the effect of the water hammer is enhanced. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.
[0017] Figure 1The utility model discloses a three-dimensional structure schematic diagram of the utility model;
[0018] Figure 2 The utility model discloses a built-in ring structure three-dimensional schematic diagram of the utility model;
[0019] Figure 3 The utility model discloses a guide plate structure installation schematic diagram of the utility model;
[0020] Figure 4 The utility model discloses an arc plate structure overhead schematic diagram of the utility model;
[0021] Figure 5 The utility model discloses a diaphragm subassembly structure cross section schematic diagram.
[0022] In the drawing, the component list that each sign represents is as follows:
[0023] 1-sealing cover, 2-inflating jar main part, 3-branch leg, 4-extended strip, 5-diaphragm subassembly, 6-reinforcing ring, 7-limiting plate, 8-guide rod, 9-arc plate, 10-air nozzle protection cover, 11-guide strip, 12-supporting strip, 13-fixing ring, 14-connecting strip, 15-spring telescopic rod, 16-hinge piece, 17-protection layer one, 18-enhancing layer, 19-connecting layer, 20-protection layer two, 21-inflating nozzle, 22-built-in ring, 23-guide plate. Specific implementation
[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.
[0025] Please refer to Figures 1-4The utility model provides a technical scheme: an expansion tank waterproof hammer diaphragm formula part, including expansion tank main part 2, expansion tank main part 2 bottom fixedly connected with support leg 3, expansion tank main part 2 top is equipped with sealing cover 1, sealing cover 1 bottom is provided with installation auxiliary mechanism, and installation auxiliary mechanism includes limiting board 7, guide strip 11 and built -in ring 22, limiting board 7 top fixedly connected with guide rod 8, guide rod 8 top fixedly connected with reinforcing ring 6, reinforcing ring 6 inner ring surface fixedly connected with diaphragm subassembly 5, diaphragm subassembly 5 outer ring surface fixedly connected with extension strip 4, and extension strip 4 bottom is connected with built -in ring 22, and built -in ring 22 outer ring surface is fixedly connected with expansion tank main part 2 inner wall, and extension strip 4 bottom is fixedly connected with guide strip 11, and guide strip 11 one side is slidably connected with guide plate 23, and guide plate 23 one side is fixedly connected with expansion tank main part 2 inner wall, and the inner rod of guide rod 8 and outer rod are slidably connected, and the limiting board 7 of guide rod 8 bottom is connected with expansion tank main part 2 inner wall, and diaphragm subassembly 5 top fixedly communicated with the inflation valve 21, and inflation valve 21 top is clamped with the gas nozzle protection cover 10, and the gas nozzle protection cover 10 penetrates sealing cover 1 top side wall.
[0026] Wherein, utilize support leg 3 can be expansion tank main part 2 bottom support reinforcement, the stable placement of expansion tank main part 2 on the ground is convenient, through sealing cover 1 can be expansion tank main part 2 top sealing protection, through guide rod 8 can realize the connection between limiting board 7 and reinforcing ring 6, through limiting board 7 can limit the installation position of diaphragm subassembly 5 bottom, through built -in ring 22 can be expansion tank main part 2 bottom support, the stability of diaphragm subassembly 5 and extension strip 4 when installing and using in expansion tank main part 2 is convenient to improve, utilize inflation valve 21 is convenient to the inflation and deflation of diaphragm subassembly 5 inside, and then realize the air pressure regulation of diaphragm subassembly 5 inside, through the gas nozzle protection cover 10 can be wrapped protection to inflation valve 21 top, through the sliding connection between guide strip 11 and guide plate 23, can be the guide of diaphragm subassembly 5 in expansion tank main part 2 inside put in and take out, reduce the position deviation of diaphragm subassembly 5 when installing.
[0027] Please refer to Figures 1-5The diaphragm assembly 5 comprises a protective layer one 17, a connecting layer 19 and a protective layer two 20, the protective layer one 17 is compounded with a reinforcing layer 18 on one side, the reinforcing layer 18 is compounded with the connecting layer 19 on one side, the connecting layer 19 is compounded with the protective layer two 20 on one side, the thickness of the connecting layer 19 is the same as that of the protective layer two 20, the diaphragm assembly 5 is fixedly connected with a fixed ring 13 on the outer ring surface, the fixed ring 13 is overlapped with one end of a spring telescopic rod 15 on one side, the other end of the spring telescopic rod 15 is fixedly connected with an arc-shaped plate 9, the arc-shaped plate 9 is fixedly connected with an arc-shaped elastic sheet on one side, the arc-shaped elastic sheet is fixedly connected with a connecting strip 14 on one side, the arc-shaped plate 9 is provided with a supporting strip 12 on one side, both ends of the supporting strip 12 are hingedly connected with hinge pieces 16, one end of one of the hinge pieces 16 is fixedly connected with the arc-shaped plate 9, the other hinge piece 16 is slidably connected with the connecting strip 14 on one side, and the connecting strip 14 is fixedly connected with a guide plate 23 on one side.
[0028] The protective layer one 17 can protect the outer layer of the diaphragm assembly 5, improve the wear resistance and chemical corrosion resistance of the diaphragm assembly 5, the reinforcing layer 18 can support and reinforce the inner side of the protective layer one 17, the connecting layer 19 can enhance the connection between the reinforcing layer 18 and the protective layer two 20, the protective layer two 20 can protect the inside of the diaphragm assembly 5, the diaphragm assembly 5 has good elasticity and pressure resistance, the internal damage of the diaphragm assembly 5 during use is reduced, the fixed ring 13 can support and reinforce the outside of the diaphragm assembly 5, the spring telescopic rod 15 can buffer and protect between the fixed ring 13 and the arc-shaped plate 9, the buffer elastic sheet can buffer and protect between the arc-shaped plate 9 and the connecting strip 14, the hinge pieces 16 can realize the connection between both ends of the supporting strip 12 and the arc-shaped plate 9 and the connecting strip 14 respectively, the supporting strip 12 can support and reinforce both sides of the connecting strip 14, and the buffer protection of the diaphragm assembly 5 by the arc-shaped plate 9 and the connecting strip 14 during use is ensured.
[0029] The working principle of the whole is that, first, the protective layer 17 and the connecting layer 19 are made of polytetrafluoroethylene and nitrile rubber respectively, which can wrap and protect the reinforcing layer 18 and the connecting layer 19, the reinforcing layer 18 is made of glass fiber, the connecting layer 19 is made of epoxy resin glue, the multi-layer structure can reduce the aging damage of the diaphragm assembly 5 in use, when the diaphragm assembly 5 needs to be disassembled and replaced, the sealing cover 1 is separated from the expansion tank body 2, then the sealing cover 1 is separated from the air nozzle protection cover 10, the extension strip 4 is moved upwards, the bottom of the extension strip 4 is separated from the built-in ring 22, then the extension strip 4 continues to move upwards, the guide strip 11 slides inside the guide plate 23, until the bottom of the guide strip 11 is separated from the guide plate 23, the bottom of the limiting plate 7 is separated from the expansion tank body 2, the diaphragm assembly 5 can be quickly taken out from the inside of the expansion tank body 2 for replacement, at the same time, the part between the reinforcing ring 6 and the limiting plate 7 is a foldable bellows type when the diaphragm assembly 5 is in use, when the internal pressure of the diaphragm assembly 5 increases, the length of the guide rod 8 is elongated, the bottom of the limiting plate 7 is inserted with the inner wall of the expansion tank body 2, when the pressure inside the diaphragm assembly 5 continues to increase, the fixed ring 13 on the outer surface of the diaphragm assembly 5 pressurizes the spring telescopic rod 15, the spring telescopic rod 15 is compressed, at this time, the arc-shaped spring between the arc-shaped plate 9 and the connecting strip 14 is compressed, the inclination angle of the supporting strip 12 changes, and the side of the arc-shaped plate 9 is buffered and protected.
[0030] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0031] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.
Claims
1. An expansion tank waterproof hammer-bellow type component comprising an expansion tank body (2) characterized in that: The expansion tank body (2) top is provided with a sealing cover (1), and the bottom of the sealing cover (1) is provided with an installation auxiliary mechanism; The installation auxiliary mechanism comprises a limiting plate (7), a guide strip (11) and an inner ring (22), the top of the limiting plate (7) is fixedly connected with a guide rod (8), and the top of the guide rod (8) is fixedly connected with a reinforcing ring (6); The inner ring surface of the reinforcing ring (6) is fixedly connected with a diaphragm assembly (5), the outer ring surface of the diaphragm assembly (5) is fixedly connected with an extension strip (4), the bottom of the extension strip (4) is clampedly connected with the inner ring (22), the outer ring surface of the inner ring (22) is fixedly connected with the inner wall of the expansion tank body (2), the bottom of the extension strip (4) is fixedly connected with the guide strip (11), and one side of the guide strip (11) is slidably connected with a guide plate (23); and one side of the guide plate (23) is fixedly connected with the inner wall of the expansion tank body (2).
2. An expansion tank water hammer arrestor diaphragm assembly according to claim 1, wherein: The inner rod and the outer rod of the guide rod (8) are slidably connected, and the limiting plate (7) at the bottom of the guide rod (8) is clampedly connected with the inner wall of the expansion tank body (2).
3. An expansion tank water hammer arrestor diaphragm assembly according to claim 1, wherein: The top of the diaphragm assembly (5) is fixedly connected with an inflation nozzle (21), the inflation nozzle (21) is clamped with a nozzle protection cover (10), and the nozzle protection cover (10) penetrates through the top side wall of the sealing cover (1).
4. The water hammer arrestor diaphragm component of claim 1, wherein: The diaphragm assembly (5) comprises a protective layer one (17), a connecting layer (19) and a protective layer two (20), one side of the protective layer one (17) is compounded with an enhanced layer (18), and one side of the enhanced layer (18) is compounded with the connecting layer (19).
5. An expansion tank water hammer arrestor diaphragm assembly according to claim 4, wherein: One side of the connecting layer (19) is compounded with the protective layer two (20), and the thickness of the connecting layer (19) is the same as that of the protective layer two (20).
6. An expansion tank water hammer arrestor diaphragm assembly as defined in claim 1 wherein: The outer ring surface of the diaphragm assembly (5) is fixedly connected with a fixed ring (13), one side of the fixed ring (13) is overlapped with one end of a spring telescopic rod (15), and the other end of the spring telescopic rod (15) is fixedly connected with an arc-shaped plate (9).
7. An expansion tank water hammer arrestor diaphragm assembly according to claim 6, wherein: One side of the arc-shaped plate (9) is fixedly connected with an arc-shaped elastic sheet, one side of the arc-shaped elastic sheet is fixedly connected with a connecting strip (14), and one side of the arc-shaped plate (9) is provided with a supporting strip (12).
8. An expansion tank water hammer arrestor diaphragm assembly according to claim 7, wherein: Both ends of the supporting strip (12) are hingedly connected with hinge pieces (16), one end of one of the hinge pieces (16) is fixedly connected with the arc-shaped plate (9), one side of the other hinge piece (16) is slidably connected with the connecting strip (14), and one side of the connecting strip (14) is fixedly connected with the guide plate (23).