Constant-temperature valve core with stainless steel sliding sleeves

Abstract

The invention provides a constant-temperature valve core with stainless steel sliding sleeves and belongs to the field of bathroom devices. The constant-temperature valve core comprises a valve body,a thermosensitive element and a reset spring, the valve body comprises a handle seat, the valve core outer sleeve and a valve base from top to bottom, and the two ends of the valve core outer sleeve are fixedly connected with the handle seat and the valve core base. The peripheral wall of the valve core outer sleeve is provided with a cold water inlet and a hot water inlet, a mixed water outlet isformed in the bottom of the valve core base, and the sliding inner sleeve is further arranged in the valve core outer sleeve. The valve core outer sleeve and the sliding inner sleeve are each in a column-ring shape, the sliding inner sleeve is mounted in the valve core outer sleeve, moves in the axial direction and makes tight contact with the inner wall of the valve core outer sleeve. The valvecore outer sleeve and the sliding inner sleeve are both made of stainless steel materials. According to a sliding assembly of the constant-temperature valve core, only the valve core outer sleeve andthe sliding inner sleeve are arranged, and a commonly-used three-piece structure is not adopted, so that the constant-temperature valve core is simple in structure and more convenient to mount; and meanwhile the characteristics that stainless steel is easy to machine and not prone to being broken into pieces are utilized, the rate of finished products is increased, and the product cost is reduced.

Description

technical field [0001] The invention belongs to the field of bathroom devices, and relates to a thermostatic valve core, in particular to a stainless steel sliding sleeve thermostatic valve core. Background technique [0002] The thermostatic spool is a device that automatically adjusts the mixing ratio of cold and hot water so that the temperature of the mixed water can be kept at the set temperature automatically. The thermostatic spool generally includes a valve body, a heat-sensitive element, and a piston. The heat-sensitive element senses the temperature and controls the piston to move back and forth, and regulates the flow ratio of cold and hot water into the valve body to achieve the purpose of constant temperature water outlet. [0003] The structure for adjusting the size of cold and hot water in the existing common thermostatic valve core is to set a piston that can move left and right in the valve core housing, and a sealing ring is placed on the piston to isolate...

AI Technical Summary

Problems solved by technology

The piston and valve body made of the above structure or material have the following problems: 1. The copper material is easy to oxidize in water, causing the piston to move jammed and resisting, and it will also cause premature aging of the thermostatic valve core, and the service life is not long; 2. 1. After long-term immersion in water, the plastic material is easy to swell and age, which will cause the friction resistance to increase, make the thermostatic valve core easy to fail, and the service life is not long

[0005] However, the thermostatic valve core mentioned in the above-mentioned patent has the following problems: 1. It is necessary to set a ceramic outer cover and a ceramic inner sleeve in the outer shell. For the ceramic outer casing and the limiting ceramic inner casing, multiple shoulders or parts with the same function need to be set inside the outer casing for limiting and fixing, which increases the design complexity of the outer casing virtually, and the ceramic outer casing needs to be set to isolate cold and hot water. This also poses certain challenges to the plugging of the ceramic jacket. It is necessary to avoid scratching and detachment of the sealing ring to prevent failure, and it is inconvenient to disassemble and replace; 2. The ceramic material is brittle and has low impact resistance. Broken, difficult to process in the later stage, which leads to low product processing yield and high product cost, which in turn increases the cost of the entire thermostatic valve core and increases the cost of living for users

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