Water heater water inlet connector capable of assisting pressure relief

By introducing dual drain holes and a motor-driven plug to adjust the pressure relief port diameter in the water inlet connector of the water heater, combined with filter vibration to prevent clogging, the problem of limited pressure relief range and high maintenance cost of existing water inlet connectors is solved, achieving efficient pressure relief and low-cost maintenance.

CN223939652UActive Publication Date: 2026-02-24YUHUAN KAIQIANG MACHINERY GAS APPLIANCE CO LTD
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Patent Information

Application Number
CN202520355122.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-24
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

The pressure relief valve of the existing water inlet connector has a fixed diameter, a limited pressure relief range, high maintenance costs, and a risk of valve bursting. It also requires regular inspection and maintenance.

Method used

A water inlet connector for a water heater, including an auxiliary pressure relief mechanism and an anti-clogging mechanism, was designed. The pressure relief port diameter is adjusted by a double drain hole and a motor-driven plug, and clogging is prevented by the vibration of the filter screen, thus achieving efficient pressure relief and cleaning.

Benefits of technology

It improves the pressure relief range and speed, reduces the risk of valve explosion, lowers maintenance costs, and keeps the connections clean and unobstructed.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223939652U_ABST
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Abstract

The utility model relates to the field of water heater connectors, and discloses a water heater water inlet connector capable of assisting pressure relief, which comprises a water heater body, the bottom of the water heater body is respectively and fixedly communicated with a drain outlet, a water outlet and a water inlet, and the water outlet is positioned between the drain outlet and the water inlet. The bottom of the water outlet and the bottom of the water inlet are both in threaded connection with electricity-proof walls, the bottom of the electricity-proof wall on one side is in threaded connection with a heat supply water pipe, and the bottom of the electricity-proof wall on the other side is in threaded connection with a safety valve. When the pressure is small, the second drainage hole is blocked, only the first drainage hole is used for pressure relief, and when the pressure is too large, the first drainage hole and the second drainage hole are both opened, so that the pressure relief range of the safety valve is effectively expanded, redundant pressure can be discharged more quickly, efficient pressure relief is achieved, and the situation that the valve is exploded due to the fact that the pressure is too large is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of water heater connectors, specifically a water inlet connector for a water heater that can assist in pressure relief. Background Technology

[0002] In existing technologies, water heater inlet connectors that assist in pressure relief mainly achieve safe pressure relief of the water heater by installing a pressure relief valve. When the internal pressure of the water heater is too high, the valve core will be pushed by the pressure, opening the water flow channel, thereby achieving pressure relief. However, the drain outlet of the current pressure relief valve is usually set to a fixed diameter, so the pressure relief valve can only withstand a limited pressure relief range, and the upper limit of the pressure relief speed cannot be adjusted. During continuous high-pressure relief, the valve is prone to bursting due to excessive pressure, which poses a safety hazard. In addition, the pressure relief valve of the water heater currently needs to be inspected and maintained regularly to ensure that there is no blockage or damage inside. If blockage or damage is found, it needs to be cleaned or replaced immediately, which increases maintenance costs.

[0003] Therefore, a water inlet connector for water heaters that can assist in pressure relief is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a water inlet connector for a water heater that can assist in pressure relief, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water heater inlet connector that assists in pressure relief, comprising a water heater body, wherein a drain outlet, a water outlet, and a water inlet are fixedly connected to the bottom of the water heater body, the water outlet being located between the drain outlet and the water inlet, and both the water outlet and the water inlet having an anti-electric shock wall threadedly connected to their bottoms; a hot water supply pipe is threadedly connected to the bottom of one side of the anti-electric shock wall, and a safety valve is threadedly connected to the bottom of the other side of the anti-electric shock wall; a cold water connector is detachably installed at the bottom of the safety valve, and a cold water pipe is threadedly connected to the bottom of the cold water connector; and further comprising:

[0006] An auxiliary pressure relief mechanism is used to increase the drainage volume to accelerate pressure relief as needed.

[0007] Anti-clogging mechanism to keep the water inlet clean and unobstructed.

[0008] Preferably, the auxiliary pressure relief mechanism includes a dual-head motor fixedly connected to the outer wall of the cold water connector. A threaded rod is fixedly connected to one output end of the dual-head motor. A slider is threadedly connected to the outer wall of the threaded rod. A plug is fixedly connected to the top of the slider. A vertical plate is slidably connected to the outer wall of the slider. The bottom of the vertical plate is fixedly connected to the dual-head motor. The middle part of the safety valve is fixedly connected to a first drain hole and a second drain hole. The plug abuts against the second drain hole.

[0009] Preferably, the anti-clogging mechanism includes a rotating rod, which is fixedly connected to the output end of the dual-head motor on the other side. The side of the rotating rod away from the dual-head motor rotates through the inner wall of the cold water connector. A protrusion is fixedly connected to the side of the rotating rod away from the dual-head motor. A filter screen is abutted against the outer wall of the protrusion. The outer wall of the filter screen is slidably connected to the inner wall of the cold water connector.

[0010] Preferably, the anti-clogging mechanism further includes a plurality of return springs fixedly connected at equal intervals to the top of the filter screen, and the side of each of the return springs away from the filter screen is fixedly connected to the inner wall of the cold water connector.

[0011] Preferably, the top of the plug is hemispherical and protruding, and the top of the plug is made of rubber.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting up an auxiliary pressure relief mechanism, the double-row holes of the first and second drain holes are used to increase the drain diameter. When the pressure is low, the second drain hole is blocked and only the first drain hole is used to relieve pressure. When the pressure is too high, both the first and second drain holes are opened, which effectively increases the pressure relief range of the safety valve and can discharge excess pressure more quickly, achieving efficient pressure relief and reducing the occurrence of valve explosion due to excessive pressure.

[0014] 2. With the anti-clogging mechanism, the rotating rod can be driven to rotate when the dual-head motor is started. The protrusions intermittently squeeze the filter screen, creating slight vibration. The filter screen can not only prevent dirt and impurities from clogging the pressure relief valve and keep the cold water connector clean and unobstructed to ensure its normal operation, but also shake off the impurities that adhere to the surface of the filter screen after a period of use, thereby increasing the service life of the filter screen, reducing the frequency of filter screen replacement and cleaning, and reducing maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the plug connection of this utility model;

[0018] Figure 4 This is a three-dimensional sectional view of the cold water connector connection of this utility model.

[0019] In the picture:

[0020] 1. Water heater body; 2. Drain outlet; 3. Water outlet; 4. Water inlet; 5. Anti-electric shock wall; 6. Safety valve; 7. Cold water connector; 8. Cold water connection pipe; 9. Hot water supply pipe; 10. Dual-head motor; 11. Threaded rod; 12. Vertical plate; 13. Slider; 14. Plug; 15. First drain hole; 16. Second drain hole; 17. Rotating rod; 18. Protrusion; 19. Filter screen; 20. Return spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 An embodiment of this utility model is provided: a water heater inlet connector that can assist in pressure relief, including a water heater body 1. The bottom of the water heater body 1 is fixedly connected to a drain outlet 2, a water outlet 3, and a water inlet 4. The water outlet 3 is located between the drain outlet 2 and the water inlet 4. Both the water outlet 3 and the water inlet 4 are threadedly connected to an anti-electric shock wall 5 at their bottoms. A hot water supply pipe 9 is threadedly connected to the bottom of one side of the anti-electric shock wall 5, and a safety valve 6 is threadedly connected to the bottom of the other side of the anti-electric shock wall 5. A cold water connector 7 is detachably installed at the bottom of the safety valve 6, and a cold water pipe 8 is threadedly connected to the bottom of the cold water connector 7. The device also includes:

[0023] An auxiliary pressure relief mechanism is used to increase the drainage volume to accelerate pressure relief as needed.

[0024] Anti-clogging mechanism to keep the water inlet clean and unobstructed;

[0025] The auxiliary pressure relief mechanism includes a double-headed motor 10 fixedly connected to the outer wall of the cold water connector 7. A threaded rod 11 is fixedly connected to the output end of one side of the double-headed motor 10. A slider 13 is threadedly connected to the outer wall of the threaded rod 11. A plug 14 is fixedly connected to the top of the slider 13. A vertical plate 12 is slidably connected to the outer wall of the slider 13. The bottom of the vertical plate 12 is fixedly connected to the double-headed motor 10. The middle part of the safety valve 6 is respectively fixedly connected to the first drain hole 15 and the second drain hole 16. The plug 14 abuts against the second drain hole 16.

[0026] The top of the plug 14 is a hemispherical protrusion, and the top of the plug 14 is made of rubber.

[0027] Wherein: the outer diameter of the hemispherical protrusion of the plug 14 is consistent with the inner diameter of the second drain hole 16, which is used to increase the plugging effect;

[0028] Even better: The auxiliary pressure relief mechanism can utilize the double-row holes of the first drain hole 15 and the second drain hole 16 to increase the drain diameter, effectively improving the pressure relief range of the safety valve 6, allowing excess pressure to be discharged more quickly and achieving efficient pressure relief.

[0029] The anti-clogging mechanism includes a rotating rod 17, which is fixedly connected to the output end of the dual-head motor 10 on the other side. The side of the rotating rod 17 away from the dual-head motor 10 rotates through the inner wall of the cold water connector 7. A protrusion 18 is fixedly connected to the side of the rotating rod 17 away from the dual-head motor 10. The outer wall of the protrusion 18 abuts against a filter screen 19. The outer wall of the filter screen 19 is slidably connected to the inner wall of the cold water connector 7.

[0030] The anti-clogging mechanism also includes multiple return springs 20 that are equidistantly fixed to the top of the filter screen 19. The side of each return spring 20 away from the filter screen 19 is fixedly connected to the inner wall of the cold water connector 7.

[0031] Among them: the reset springs 20 are equidistantly arranged to disperse the squeezing force on the filter screen 19, so that it keeps reciprocating;

[0032] Even better: The anti-clogging mechanism can also drive the rotating rod 17 to rotate when the dual-head motor 10 is started. The protrusion 18 intermittently squeezes the filter screen 19 to form a slight vibration. The filter screen 19 can not only prevent dirt and impurities from clogging the pressure relief valve and keep the cold water connector 7 clean and unobstructed, but also shake off the impurities that adhere to the surface of the filter screen 19 after a period of use.

[0033] The working principle of the above implementation is as follows: When the internal pressure of the water heater body 1 is high, the safety valve 6 automatically opens to release pressure and ensure the safe operation of the water heater body 1. Through the dual-row setting of the first drain hole 15 and the second drain hole 16, based on the actual pressure, when the pressure value reaches the preset parameter, the controller on the water heater body 1 starts the double-headed motor 10 on the cold water connector 7, which drives the threaded rod 11 to rotate, thereby driving the slider 13 to move up and down. This causes the rubber hemispherical block at the top of the plug 14 to either seal or open the second drain hole 16. This ensures that when the pressure is too high, both the first drain hole 15 and the second drain hole 16 are open, increasing the drain diameter and thus improving the pressure release speed. Conversely, when the pressure is low, the second drain hole 16 is blocked, and only... Pressure can be released through the first drain hole 15. By adding an auxiliary pressure relief mechanism to the cold water connector 7, the pressure relief range of the safety valve 6 can be effectively increased. At the same time, starting the dual-head motor 10 can also drive the rotating rod 17 to rotate, which in turn causes the protrusion 18 to intermittently squeeze the filter screen 19. With the help of the return spring 20, the filter screen 19 continuously slides back and forth over short distances on the inner wall of the cold water connector 7, forming vibration. Therefore, when the cold water pipe 8 is connected to the cold water connector 7, it needs to be filtered by the filter screen 19 to prevent trace impurities in the water from entering the safety valve 6 and causing blockage. In addition, the slight vibration of the filter screen 19 can also shake off the impurities that have adhered to the surface of the filter screen 19 after a period of use, thereby increasing the service life of the filter screen 19 and reducing the number of times the filter screen 19 needs to be replaced and cleaned.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water inlet connector for a water heater that assists in pressure relief, comprising a water heater body (1), characterized in that, The bottom of the water heater body (1) is fixedly connected to a drain outlet (2), a water outlet (3), and a water inlet (4). The water outlet (3) is located between the drain outlet (2) and the water inlet (4). The bottom of both the water outlet (3) and the water inlet (4) is threaded with an anti-electric shock wall (5). The bottom of one side of the anti-electric shock wall (5) is threaded with a hot water supply pipe (9), and the bottom of the other side of the anti-electric shock wall (5) is threaded with a safety valve (6). The bottom of the safety valve (6) is detachably installed with a cold water connector (7). The bottom of the cold water connector (7) is threaded with a cold water pipe (8). The water heater also includes: An auxiliary pressure relief mechanism is used to increase the drainage volume to accelerate pressure relief as needed. Anti-clogging mechanism to keep the water inlet clean and unobstructed.

2. A water inlet connector for a water heater that can assist in pressure relief according to claim 1, characterized in that: The auxiliary pressure relief mechanism includes a double-headed motor (10) fixedly connected to the outer wall of the cold water connector (7). A threaded rod (11) is fixedly connected to the output end of one side of the double-headed motor (10). A slider (13) is threadedly connected to the outer wall of the threaded rod (11). A plug (14) is fixedly connected to the top of the slider (13). A vertical plate (12) is slidably connected to the outer wall of the slider (13). The bottom of the vertical plate (12) is fixedly connected to the double-headed motor (10). The middle part of the safety valve (6) is fixedly connected to a first drain hole (15) and a second drain hole (16). The plug (14) abuts against the second drain hole (16).

3. A water inlet connector for a water heater that can assist in pressure relief according to claim 2, characterized in that: The anti-clogging mechanism includes a rotating rod (17), which is fixedly connected to the output end of the dual-head motor (10) on the other side. The side of the rotating rod (17) away from the dual-head motor (10) rotates through the inner wall of the cold water connector (7). A protrusion (18) is fixedly connected to the side of the rotating rod (17) away from the dual-head motor (10). The outer wall of the protrusion (18) abuts against a filter screen (19). The outer wall of the filter screen (19) is slidably connected to the inner wall of the cold water connector (7).

4. A water inlet connector for a water heater that can assist in pressure relief according to claim 3, characterized in that: The anti-clogging mechanism also includes multiple reset springs (20) that are equidistantly fixed to the top of the filter screen (19), and the side of each of the multiple reset springs (20) away from the filter screen (19) is fixedly connected to the inner wall of the cold water connector (7).

5. A water inlet connector for a water heater that can assist in pressure relief according to claim 2, characterized in that: The top of the plug (14) is hemispherical and protruding, and the top of the plug (14) is made of rubber.