A module for automatically controlling waterway flow

Abstract

The present invention relates to the field of thermostatic shower accessories, and in particular to an automatic water flow control module, comprising: a base, a valve body, a thermal sensitive component and a diaphragm. The temperature sensing part senses the temperature of cold water passing through in real time. When the temperature of the cold water is too low, the mixed water flow is slowed down so that more hot water is supplied to the thermostatic valve core for mixing. When the temperature of the cold water is too high, the mixed water channel is enlarged so that more cold water is supplied to the thermostatic valve core for mixing. In this way, the mixed water temperature range of the thermostatic valve core can be guaranteed, and the problem of temperature adjustment failure or temperature excess caused by the thermostatic shower matching a gas water heater is solved.

Description

Technical Field

[0001] The invention relates to the field of thermostatic shower accessories, and in particular to an automatic waterway flow control module. Background Art

[0002] Gas water heaters mainly rely on the burning of natural gas to heat water. Gas water heaters with lower liters cannot heat tap water to the standard mixing temperature when the tap water temperature is low in winter. In summer, when the tap water temperature is high, it is easy to heat the water temperature to an excessive temperature. As a result, the thermostatic shower head matched with the gas water heater will cause temperature adjustment failure or temperature deviation, resulting in customer complaints. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide an automatic water flow control module which automatically adjusts the warm water flow according to the cold water temperature to stabilize the outlet water temperature.

[0004] The present invention is achieved through the following technical solutions:

[0005] A module for automatically controlling waterway flow, characterized in that it comprises: a base, a valve body, a thermal sensitive component and a diaphragm,

[0006] The base is sealed and connected to the lower end of the valve body, a cold water cavity is formed between the base and the valve body, a cold water flow hole connected to the cold water cavity is opened on the side wall of the valve body, an end cover is sealed and connected to the upper end of the valve body, a warm water cavity is formed between the end cover and the valve body, a support pipe coaxially fixed to the valve body is provided in the warm water cavity, a warm water inlet hole is provided on the upper side wall of the valve body, a warm water outlet hole is provided on the middle side wall of the valve body, and a side water passage connecting the warm water inlet hole and the warm water outlet hole is provided between the inner wall of the valve body and the support pipe.

[0007] The middle part of the thermal sensitive component is detachably sealed with the valve body, the thermal sensitive component includes a temperature sensing part and a moving rod inserted into the temperature sensing part, the temperature sensing part is arranged in the cold water chamber, the free end of the moving rod is fixedly connected to the diaphragm bracket, the diaphragm bracket is arranged in the warm water chamber and above the support tube, a buckle cover is detachably connected to the diaphragm bracket, the diaphragm is arranged between the diaphragm bracket and the buckle cover, and a return spring is arranged between the buckle cover and the end cover to make the diaphragm in close contact with the upper end of the support tube.

[0008] Preferably, a limiting groove is provided at the inner upper end of the end cover, and a limiting protrusion corresponding to the limiting groove is provided at the upper end of the buckle cover.

[0009] The beneficial effects of the present invention are:

[0010] The temperature sensing unit senses the temperature of the cold water passing through in real time. When the cold water temperature is too low, the mixed water flow rate is slowed down to allow more hot water to be supplied to the thermostatic valve core for mixing. When the cold water temperature is too high, the mixed water channel is enlarged to allow more cold water to be supplied to the thermostatic valve core for mixing. This ensures the mixed water temperature range of the thermostatic valve core and solves the problem of temperature adjustment failure or temperature deviation caused by the thermostatic shower unit matching the gas water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a main structural schematic diagram of the present invention.

[0012] Figure 2 It is a schematic diagram of the assembly structure of the present invention.

[0013] Figure 3 It is a three-dimensional structural schematic diagram of the present invention.

[0014] Figure 4 It is a cross-sectional structural schematic diagram of the present invention.

[0015] Figure 5 It is a partially enlarged schematic diagram of the present invention.

[0016] Figure 6 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Figure 7 It is a schematic structural diagram of an embodiment of the present invention.

[0018] Figure 8 It is a reference diagram of the use status of the present invention.

[0019] In the figure: 1. base, 2. valve body, 3. diaphragm, 4. cold water flow hole, 5. end cover, 6. support tube, 7. warm water inlet hole, 8. warm water outlet hole, 9. side water channel, 10. temperature sensing part, 11. moving rod, 12. diaphragm bracket, 13. buckle cover, 14. reset spring, 15. limiting groove, 16. limiting protrusion, 17. constant temperature valve core assembly, 18. cold water water channel, 19. hot water water channel. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and the best embodiments.

[0021] As shown in the figure, the present invention comprises: a base 1, a valve body 2, a thermal sensitive component and a diaphragm 3,

[0022] The base is sealed and connected to the lower end of the valve body, a cold water cavity is formed between the base and the valve body, a cold water flow hole 4 connected to the cold water cavity is opened on the side wall of the valve body, an end cover 5 is sealed and connected to the upper end of the valve body, a warm water cavity is formed between the end cover and the valve body, a support pipe 6 coaxially fixed to the valve body is arranged in the warm water cavity, a warm water inlet hole 7 is arranged on the upper side wall of the valve body, a warm water outlet hole 8 is arranged on the middle side wall of the valve body, and a side water passage 9 connecting the warm water inlet hole and the warm water outlet hole is arranged between the inner wall of the valve body and the support pipe.

[0023] The middle part of the thermal sensitive component is detachably sealed with the valve body. The thermal sensitive component is a commercially available product including a temperature sensing part 10 and a moving rod 11 inserted into the temperature sensing part. A temperature sensing material is filled between the temperature sensing part and the moving rod. The temperature sensing material will expand or contract due to temperature changes, causing the moving rod to stretch or contract in the temperature sensing part. The temperature sensing part is arranged in the cold water cavity. The free end of the moving rod is fixedly connected to a diaphragm bracket 12. The diaphragm bracket is arranged in the warm water cavity and above the support tube. A buckle cover 13 is detachably connected to the diaphragm bracket. The diaphragm is arranged between the diaphragm bracket and the buckle cover. A return spring 14 is arranged between the buckle cover and the end cover to make the diaphragm in close contact with the upper end of the support tube. Figure 8 As shown, when the flow module in this embodiment is installed on the thermostatic shower, the cold water flow hole connects the cold water cavity with the cold water circuit 18, and a thermostatic valve core assembly 17 is provided in the thermostatic shower. The two inlet ends of the thermostatic valve core assembly are respectively connected with the cold water circuit and the hot water circuit 19. The hot water and the cold water are mixed in the thermostatic valve core assembly to form warm water. The outlet end of the thermostatic valve core assembly is connected with the warm water inlet hole of the flow module in this embodiment, as shown in FIG. Figure 6 As shown in the figure, when the cold water temperature is too low, the temperature sensing part senses the cold water temperature and contracts the moving rod, which drives the diaphragm bracket to reduce or even completely close the gap between the diaphragm and the upper end of the support tube, thereby reducing the instantaneous flow of warm water in the flow module. Due to the effect of the thermostatic valve core assembly, the reduction in the warm water flow rate reduces the cold water flow rate entering the thermostatic valve core assembly. When hot water and cold water are mixed, the proportion of hot water is relatively increased, thereby avoiding the cold water temperature being too low to cause the warm water temperature to drop, and maintaining the warm water temperature within an appropriate range. On the contrary, Figure 7 As shown, when the cold water temperature is too high, the temperature sensing part senses the cold water temperature and extends the moving rod. The moving rod drives the diaphragm to increase the gap between the diaphragm and the upper end of the support tube. The warm water can flow to the warm water outlet from the side water channel and from the gap between the diaphragm and the upper end of the support tube to the warm water outlet, thereby increasing the instantaneous flow of the warm water in the flow module in this embodiment. Due to the action of the thermostatic valve core assembly, the increase in the warm water flow rate increases the cold water flow rate entering the thermostatic valve core assembly. When hot water and cold water are mixed, the proportion of cold water is relatively increased, thereby avoiding the increase in the warm water temperature caused by the cold water temperature being too high and maintaining the warm water temperature within an appropriate range.

[0024] Preferably, a limiting groove 15 is provided at the inner upper end of the end cover, and a limiting protrusion 16 corresponding to the limiting groove is provided at the upper end of the buckle cover, which plays a guiding and limiting role when the moving rod moves outward to the extreme position.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A module for automatically controlling waterway flow, characterized in that: include: Base, valve body, thermal components and diaphragm, The base is sealed and connected to the lower end of the valve body, a cold water cavity is formed between the base and the valve body, a cold water flow hole connected to the cold water cavity is opened on the side wall of the valve body, an end cover is sealed and connected to the upper end of the valve body, a warm water cavity is formed between the end cover and the valve body, a support pipe coaxially fixed to the valve body is provided in the warm water cavity, a warm water inlet hole is provided on the upper side wall of the valve body, a warm water outlet hole is provided on the middle side wall of the valve body, and a side water passage connecting the warm water inlet hole and the warm water outlet hole is provided between the inner wall of the valve body and the support pipe. The middle part of the thermal sensitive component is detachably sealed with the valve body, the thermal sensitive component includes a temperature sensing part and a moving rod inserted into the temperature sensing part, the temperature sensing part is arranged in the cold water chamber, the free end of the moving rod is fixedly connected to the diaphragm bracket, the diaphragm bracket is arranged in the warm water chamber and above the support tube, a buckle cover is detachably connected to the diaphragm bracket, the diaphragm is arranged between the diaphragm bracket and the buckle cover, and a return spring is arranged between the buckle cover and the end cover to make the diaphragm in close contact with the upper end of the support tube.

2. The automatic waterway flow control module according to claim 1, characterized in that: A limiting groove is provided at the inner upper end of the end cover, and a limiting protrusion corresponding to the limiting groove is provided at the upper end of the buckle cover.

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