Expansion water tank capable of being inflated through universal rotation
By designing a combination of brass air inflator and stainless steel connecting spring, the problem of inconvenient connection caused by the fixed joint of traditional air expansion tank is solved, realizing flexible rotation and stable sealing of the air inflator, and improving the safety and operating efficiency of the equipment.
Patent Information
- Application Number
- CN202520501368.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The fixed inflation connector of traditional inflatable expansion tanks makes it inconvenient to connect to inflation pipes in different locations, thus limiting their use.
The sealing assembly consists of a brass air inflator, a stainless steel connecting circlip, and a spring. The angle is adjusted by rotating the brass air inflator, and the elastic deformation of the stainless steel connecting circlip achieves sealing and stable connection. The threaded connection and the elastic potential energy of the spring ensure the sealing effect of the air inflator pipe.
It enables flexible rotation of the inflation joint, preventing loosening and air leakage, enhancing sealing and equipment safety, simplifying installation and maintenance, and extending the service life of the equipment.
Smart Images

Figure CN223855874U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of expansion water tank, especially to the inflation of expansion water tank of universal rotation. BACKGROUND
[0002] Expansion tank (also known as expansion vessel or expansion container) is a device used in water heating systems, mainly used to absorb the pressure change caused by the expansion of water due to temperature rise during heating. Expansion tank can help maintain pressure balance in the system, prevent damage to pipes or equipment due to water expansion, and inflation expansion tank (also known as inflation type expansion vessel or air pressure expansion tank) is a device specially designed for liquid heating system to absorb the expansion of water caused by water heating, thereby adjusting the pressure of the system.
[0003] The traditional inflation expansion tank is mainly composed of a steel shell, an inner diaphragm (or piston), an inflation valve and a water inlet. The shell is usually made of steel, and the diaphragm is provided inside to separate the water chamber and the air chamber. The water chamber is used to contain water, and the air chamber is filled with air of preset pressure through the inflation valve to play a buffering role. When water is heated, the water expands, and the water chamber in the tank contains the excess expanded water, and the air chamber absorbs the excess pressure by compression of the diaphragm or piston. When the water temperature in the system rises, the water expands into the water chamber, and the air in the air chamber is compressed to balance the pressure, avoiding damage to pipes and equipment. Conversely, when the water temperature drops and the water shrinks, the pressure in the air chamber helps the water to flow back into the system, thereby maintaining stable system pressure.
[0004] The inflation joint of the traditional inflation expansion tank is usually fixed, which makes it inconvenient to connect when facing different positions of the inflation pipeline, thereby limiting the use. Therefore, the inflation expansion tank of universal rotation is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides the inflation expansion tank of universal rotation, which aims to improve the problem that the inflation joint is usually fixed in the prior art, which makes it inconvenient to connect when facing different positions of the inflation pipeline.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] The utility model discloses a rotatable inflation expansion water tank, including brass inflation joint, one side of brass inflation joint is fixedly connected with brass base, the inner wall of brass inflation joint is fixedly connected with stainless steel connecting snap spring, the bottom of brass base is installed with O type ring, the outside of brass inflation joint is fixedly connected with connecting joint, the inner wall of brass inflation joint is fixedly connected with valve core, the inner wall of connecting joint is fixedly connected with sealing assembly, the inner wall of sealing assembly is provided with elastic component, one side of brass base is fixedly connected with expansion water tank,
[0008] As a further description of the above technical solutions:
[0009] The sealing assembly includes a plurality of housings, one side of the housing is fixedly connected to one side of the brass inflation joint, one side of the housing is slidably connected with a connecting column, and the other end of the connecting column is fixedly connected with a sealing gasket.
[0010] As a further description of the above technical solutions:
[0011] The elastic component includes a spring, one side of the spring is fixedly connected to the inner wall of one side of the housing, the other end of the spring is fixedly connected with a sliding block, and the other end of the sliding block is fixedly connected to one side of the connecting column.
[0012] As a further description of the above technical solutions:
[0013] The outer surface of the sealing gasket is slidably connected to the inner wall of the connecting joint, and the sealing gasket is made of rubber.
[0014] As a further description of the above technical solutions:
[0015] The inner wall of the connecting joint is provided with threads for connecting an external air source.
[0016] As a further description of the above technical solutions:
[0017] The stainless steel connecting snap spring fixes the brass inflation joint and the brass base to realize sealing and rotation.
[0018] As a further description of the above technical solutions:
[0019] The brass base is fixed to the expansion water tank by riveting, one side of the brass base is provided with a groove, and the stainless steel connecting snap spring is in contact with the groove.
[0020] The utility model has the following beneficial effects:
[0021] 1. The utility model discloses a brass base is installed outside the expansion water tank, and the angle is adjusted through rotating brass inflation joint, drives stainless steel connecting snap spring rotation, until the snap spring is pressed against the base one side, produces deformation and stores elastic potential energy, thereby the rotation of joint is limited, realizes sealing and stable connection, and this structure design ensures the rotation flexibility of inflation joint, prevents loosening and air leakage simultaneously, enhances the sealing property and the security of equipment, prolongs the service life, and is convenient for installation and maintenance.
[0022] 2. The utility model discloses through the threaded connection of inflation pipeline and connecting joint, promotes the movement of sealing washer and connecting column, thereby extruding spring produces elastic potential energy, ensures the sealing effect between inflation pipeline and connecting joint, and this structure makes sealing washer can effectively press against inflation pipeline, prevents air leakage, ensures the air tightness in the inflation process, and through the deformation of spring, the sealing effect is stable and reliable, improves the security and operating efficiency of system, makes pipeline connection more simple simultaneously, is convenient for maintenance, prolongs the service life of equipment. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the three -dimensional schematic view of the inflation water tank of universal rotation inflation of the utility model;
[0024] Figure 2 It is the structure schematic view of sealing washer of universal rotation inflation of the inflation water tank of the utility model;
[0025] Figure 3 It is Figure 2 The enlarged view of A in the middle;
[0026] Figure 4 It is the structure schematic view of brass inflation joint of brass inflation joint of universal rotation inflation of the utility model;
[0027] Figure 5 It is the structure schematic view of inflation water tank of universal rotation inflation of the inflation water tank of the utility model
[0028] Figure 6 It is the structure schematic view of circular water tank of universal rotation inflation of the inflation water tank of the utility model.
[0029] LEGEND:
[0030] 1, brass inflation joint, 2, brass base, 3, stainless steel connecting snap spring, 4, O ring, 5, connecting joint, 6, valve core, 7, shell cover, 8, spring, 9, sliding block, 10, connecting column, 11, sealing washer, 12, inflation water tank. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.
[0032] With reference to Figures 1 to 2 An embodiment provided by the present utility model: the inflation water tank can rotate in all directions, comprising brass inflation joint 1, one side of brass inflation joint 1 is fixedly connected with brass base 2, which ensures the stable connection of the inflation joint and provides support for subsequent rotation, the inner wall of brass inflation joint 1 is fixedly connected with stainless steel connecting clasp spring 3, which can provide certain elasticity while ensuring the sealing effect, so that the inflation joint maintains moderate damping during rotation, stainless steel connecting clasp spring 3 fixes brass inflation joint 1 and brass base 2, through the elastic deformation of the clasp spring, the rotatability of the inflation joint is realized, and after rotation to the appropriate position, it is automatically locked to prevent accidental loosening, the bottom of brass base 2 is provided with O-ring 4, which can effectively enhance the sealing property and avoid gas leakage during inflation, thereby improving the safety and stability of the system, the outer part of brass inflation joint 1 is fixedly connected with connecting joint 5, which is internally provided with a threaded design, facilitating quick connection with an external inflation source, thereby improving the compatibility and versatility of the equipment, the inner wall of connecting joint 5 is provided with threads, the inflation pipeline is fastened through the threads, so that the inflation pipeline is stably connected with the inflation joint, preventing the interface from loosening due to vibration or pressure fluctuation during inflation, the inner wall of brass inflation joint 1 is fixedly connected with valve core 6, which is automatically closed after inflation is completed, preventing gas backflow and improving the sealing property and safety of the system.
[0033] The inner wall of connecting joint 5 is fixedly connected with a sealing assembly, which can provide a sealing effect after the inflation pipeline is connected, preventing gas leakage and ensuring the stability of the inflation process, the inner wall of the sealing assembly is provided with an elastic assembly, which provides moderate elasticity, so that the sealing structure can tightly adhere to the inflation pipeline under different pressure conditions, ensuring long-term reliable sealing effect, one side of brass base 2 is provided with a groove, which is used for accommodating stainless steel connecting clasp spring 3, so that it can smoothly enter the groove during rotation, realizing stable locking function, stainless steel connecting clasp spring 3 is in contact with the groove, and the clasp spring can move along the groove during rotation and automatically lock when reaching the appropriate position through elastic return.
[0034] Different from embodiment one, with reference to Figure 2 and Figure 3The sealing assembly comprises a plurality of casings 7, which can provide support for the internal sealing structure and ensure that the sealing structure remains stable and does not deviate laterally when subjected to force. One side of the casing 7 is fixedly connected to one side of the brass inflation joint 1, which ensures that the sealing assembly is integrally connected with the inflation joint, improving the overall sealing performance and stability. One side of the casing 7 is slidably connected to a connecting column 10, which can be axially displaced when the inflation pipe is inserted, causing the sealing structure to tightly adhere to the pipe interface and improving the sealing effect. The other end of the plurality of connecting columns 10 is fixedly connected to a sealing gasket 11 made of rubber, which can adapt to different diameters of the pipe interface under external force, improving the sealing compatibility.
[0035] The sealing gasket 11 is slidably connected to the inner wall of the connecting joint 5 and can move along the inner wall under the push of the connecting column 10, ensuring that the inflation pipe can provide good sealing effect after insertion. The sealing gasket 11 is made of rubber, which has high elasticity and aging resistance to ensure stability during long-term use, and can still maintain good sealing under high pressure. The elastic assembly comprises a spring 8, which can be compressed when the inflation pipe is inserted and push the sealing gasket 11 back to its original position after release, ensuring that the sealing assembly can maintain effective sealing function for a long time. One side of the spring 8 is fixedly connected to the inner wall of one side of the casing 7, which ensures that the force direction of the spring 8 is always consistent with the movement direction of the sealing gasket 11, improving the reliability of the sealing assembly.
[0036] The other end of the spring 8 is fixedly connected to a sliding block 9, which is the force receiving end of the spring 8 and can uniformly transmit the elastic force of the spring 8, ensuring that the sealing gasket 11 is uniformly stressed and improving the sealing performance. The other end of the sliding block 9 is fixedly connected to one side of the connecting column 10, which can drive the connecting column 10 and the sealing gasket 11 back to their original positions when the spring 8 recovers from deformation, ensuring that the sealing assembly can automatically recover to the initial state after each inflation.
[0037] Unlike Embodiment One and Embodiment Two, with reference to Figures 4 to 6 One side of the brass base 2 is fixedly connected to an expansion tank 12, which is used to store and adjust the pressure changes in the system to prevent damage to the pipe or instability of the system pressure due to thermal expansion and contraction. The brass base 2 is fixed to the expansion tank 12 by riveting, which ensures a firm connection between the base and the tank, preventing loosening or leakage due to long-term use or pressure fluctuations. The expansion tank 12 can be a cylindrical, circular or rectangular tank,
[0038] Working principle: when the device is needed, by installing the brass base 2 outside the expansion tank 12, at this time can be through the rotation of brass inflation joint 1, so that the angle of brass inflation joint 1 adjustment, and through the rotation of brass inflation joint 1 can drive the stainless steel connecting spring 3 to rotate, until the stainless steel connecting spring 3 against one side of brass base 2, so that the stainless steel connecting spring 3 deformation produces elastic potential, in turn limit the rotation of brass inflation joint 1, and through the stainless steel connecting spring 3 connecting brass base 2 and brass inflation joint 1 connection, so as to realize the effect of rotation and sealing;
[0039] When the external inflation source needs to be connected, the external inflation pipeline is screwed into the inner wall of the connecting joint 5, at this time the inflation pipeline will push against the sealing pad 11, at this time the sealing pad 11 will push the connecting column 10 to move, so that the sliding block 9 can extrude the spring 8 under the movement of the connecting column 10, and the spring 8 will be deformed to generate elastic potential, under the action of the elastic potential, the connecting column 10 can push the sealing pad 11, so that the sealing pad 11 pushes against the inflation pipeline, realizing the sealing effect of the butt joint between the pipelines.
[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. A gimballed inflatable expansion tank comprising a brass inflation nipple (1) characterised in that: The one side of brass inflation joint (1) is fixedly connected with brass base (2), the inner wall of brass inflation joint (1) is fixedly connected with stainless steel connecting clasp spring (3), the bottom of brass base (2) is installed with O type ring (4), the outside of brass inflation joint (1) is fixedly connected with connecting joint (5), the inner wall of brass inflation joint (1) is fixedly connected with valve core (6), the inner wall of connecting joint (5) is fixedly connected with sealing assembly, the inner wall of sealing assembly is provided with elastic assembly, one side of brass base (2) is fixedly connected with expansion water tank (12).
2. The gimballed inflatable expansion tank of claim 1, wherein: The sealing assembly includes a plurality of housings (7), one side of the housing (7) is fixedly connected to one side of the brass inflation joint (1), one side of the housing (7) is slidably connected with a connecting column (10), the other end of the plurality of connecting columns (10) is fixedly connected with a sealing gasket (11).
3. The gimballed inflatable expansion tank of claim 2, wherein: The elastic assembly includes a spring (8), one side of the spring (8) is fixedly connected to the inner wall of one side of the housing (7), the other end of the spring (8) is fixedly connected with a sliding block (9), the other end of the sliding block (9) is fixedly connected to one side of the connecting column (10).
4. The gimballed inflatable expansion tank of claim 2, wherein: The outer sealing gasket (11) is slidably connected to the inner wall of the connecting joint (5), the sealing gasket (11) is made of rubber material.
5. The gimballed inflatable expansion tank of claim 1, wherein: The inner wall of the connecting joint (5) is provided with threads for connecting the external air source.
6. The gimballed inflatable expansion tank of claim 1, wherein: The stainless steel connecting clasp spring (3) fixes the brass inflation joint (1) and the brass base (2) to realize sealing and rotation.
7. The gimballed inflatable expansion tank of claim 1, wherein: The brass base (2) is fixed with the expansion water tank (12) by riveting, one side of the brass base (2) is provided with a groove, the stainless steel connecting clasp spring (3) is in contact with the groove.