A thermostatic valve core for faucets
By adding a removable primary filter sleeve to the outside of the thermostatic valve core's water filter screen, the problems of easy clogging and inconvenient cleaning of the filter screen are solved, thereby achieving the stability and extended service life of the thermostatic valve core at a low cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO JUBO SPOOL TECH CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-03
AI Technical Summary
The filter screen of existing thermostatic valve cores is prone to clogging, is inconvenient to clean, and is easily damaged, affecting its service life.
A removable primary filter sleeve is added to the outside of the water filter screen. It adopts a concave-convex structure design, so that impurities are guided to the concave surface for storage. It is installed by snap-fit, which simplifies the cleaning process.
It enables stable use of thermostatic valve cores, extends service life, and is cost-effective, while maintaining water temperature stability.
Smart Images
Figure CN224453777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of faucet valve core technology, specifically to a thermostatic faucet valve core. Background Technology
[0002] Thermostatic valve core is one of the core components of thermostatic faucets. It can adjust the mixing ratio of hot and cold water to keep the mixed water at the set temperature. It can effectively cope with the fluctuations in hot and cold water pressure and temperature, and quickly and accurately stabilize the outlet water temperature at the set value, providing users with a comfortable and stable water temperature.
[0003] Thermostatic valve cores typically have a filter screen at the water inlet to filter the water source. However, after prolonged use, impurities in the water can easily adhere to the filter screen and clog the mesh. Users then need to remove the thermostatic valve core from the faucet for cleaning. However, during cleaning, the filter screen is difficult to remove and easily damaged. Furthermore, the impurities adhering to the filter screen are difficult to remove by rinsing alone. The operator may then use a brush to remove them. However, during the brushing process, some impurities may be squeezed into the thermostatic valve core inside the filter screen, affecting the sensitivity of the thermostatic element and the normal movement of the sliding valve, thus reducing the thermostatic effect. This can lead to valve blockage after a short period of use, shortening the valve core's lifespan. Utility Model Content
[0004] To address the aforementioned issues, a thermostatic valve core for faucets is provided. By adding a removable, textured primary filter sleeve to the outside of the water filter screen, the operator can simply replace the outer primary filter sleeve when cleaning the thermostatic valve core. Furthermore, the filtered impurities can be collected and stored during use, ensuring long-term stable operation of the thermostatic valve core. The snap-fit installation method provides a secure connection without affecting the valve body, effectively extending the service life of the thermostatic valve core while maintaining low cost.
[0005] To address the existing technical problems, this utility model provides a faucet thermostatic valve core including a valve core body, a water filter screen on the valve core body, and a detachable primary filter screen sleeve on the outer sleeve of the water filter screen; the primary filter screen sleeve is formed by bending a rectangular mesh sheet and connecting the ends; the cross-section of the rectangular mesh sheet along its long side has a corrugated structure.
[0006] Preferably, the primary filter screen sleeve is provided with a convex surface and a concave surface, the concave surface being divided into a head and a neck, and the width of the neck being smaller than the width of the head.
[0007] Preferably, the convex curved edge connects with the concave neck.
[0008] Preferably, the first and last ends of the primary filter screen sleeve are connecting parts, and the connecting parts are provided with positioning grooves, and positioning blocks are provided in the positioning grooves.
[0009] Preferably, the positioning groove is L-shaped, and the positioning block is made of environmentally friendly rubber material and is locked in the positioning groove.
[0010] Preferably, a retaining ring is provided at the valve core body and a retaining groove is provided on the inner side of the primary filter screen sleeve to cooperate with the retaining ring.
[0011] Preferably, the inner side of the retaining ring is connected to the valve core body, and the retaining ring has a groove for connecting with the connecting part.
[0012] The advantages of this utility model compared to the prior art are:
[0013] 1. By adding a removable primary filter screen sleeve to the outside of the water filter screen, the operator can simply replace the outer primary filter screen sleeve when cleaning the thermostatic valve core, reducing cleaning steps and ensuring the stability of the thermostatic valve core during use.
[0014] 2. The primary filter sleeve is designed with concave and convex surfaces. When filtering water, impurities are guided along the convex surface of the primary filter sleeve to the concave surface for storage and accumulation under the push of the water flow, thus maintaining the stability when cold and hot water are mixed.
[0015] 3. The primary filter sleeve is installed and connected by a snap-fit method, which is stable and will not affect the valve body, effectively ensuring the service life of the thermostatic valve core and keeping costs low. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a thermostatic valve core for a faucet.
[0017] Figure 2 This is a schematic diagram of the water filter screen and primary filter screen sleeve structure of a thermostatic valve core for a faucet.
[0018] Figure 3 This is a three-dimensional structural diagram of the primary filter screen sleeve of a thermostatic valve core for a faucet.
[0019] Figure 4 This is a schematic diagram showing the disassembled structure of the primary filter screen and positioning block of a thermostatic valve core for a faucet.
[0020] Figure 5 This is a top view schematic diagram of the primary filter screen connection part and retaining ring of a thermostatic valve core for a faucet.
[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the positioning block of a thermostatic valve core for a faucet.
[0022] Figure 7 This is a schematic diagram of the connection structure between the primary filter screen sleeve and the positioning block of a thermostatic valve core for a faucet.
[0023] The numbers in the diagram are: 1. Valve core body; 1a. Water filter screen; 2. Primary filter screen sleeve; 2a. Positioning block; 3. Snap ring. Detailed Implementation
[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0025] See Figure 1 and Figure 2 As shown, a thermostatic valve core for a faucet includes a valve core body 1, a water filter screen 1a on the valve core body 1, and a detachable primary filter screen sleeve 2 on the outer sleeve of the water filter screen 1a; the primary filter screen sleeve 2 is formed by bending a rectangular mesh and connecting the ends; the cross-section of the rectangular mesh along its long side is a corrugated structure.
[0026] It should be noted that by installing a removable, washable, and replaceable primary filter sleeve 2 on the outside of the filter screen 1a, damage to the filter screen 1a and the squeezing of impurities into the inside of the filter screen 1a are avoided during the cleaning process. However, during the removal of the primary filter sleeve 2, the filter screen 1a still has the function of intercepting external impurities on the outside of the valve core body 1. At the same time, the wavy design of the primary filter sleeve 2 increases the contact area with the water source in a single pass, allowing for the filtration of more water in a shorter time.
[0027] See Figure 3 As shown, the primary filter screen 2 is provided with a convex surface and a concave surface. The concave surface is divided into a head and a neck, and the width of the neck is smaller than the width of the head.
[0028] The convex curved edge connects with the concave neck.
[0029] It should be noted that, through the setting of convex and concave surfaces, when the primary filter screen sleeve 2 filters the water source, due to the curved shape of the convex surface, impurities in the filtered water will be guided to the concave surface and stored there because the neck size of the concave surface is smaller than the size of the concave surface, thus avoiding interference with the primary filter screen sleeve 2's filtration of the water source.
[0030] See Figures 3-7 As shown, the first and last ends of the primary filter screen sleeve 2 are connecting parts, and a positioning groove is provided in the connecting part, and a positioning block 2a is provided in the positioning groove.
[0031] The positioning groove is L-shaped, and the positioning block 2a is made of environmentally friendly rubber material and is locked in the positioning groove.
[0032] It should be noted that after the primary filter screen sleeve 2 is placed on the outside of the water filter screen 1a, the connecting parts at both ends of the primary filter screen sleeve 2 are in contact. At this time, the positioning block 2a made of environmentally friendly rubber is inserted into the positioning groove, and the installation of the primary filter screen sleeve 2 is completed under the limit of the L-shaped positioning groove.
[0033] See Figure 3 and Figure 5 As shown, a retaining ring 3 is provided at the valve core body 1, and a retaining groove that cooperates with the retaining ring 3 is provided on the inner side of the primary filter screen sleeve 2.
[0034] The inner side of the retaining ring 3 is connected to the valve core body 1, and the retaining ring 3 has a groove for connecting with the connecting part.
[0035] It should be noted that, in order to improve the stability of the primary filter screen sleeve 2 during use and the tightness of the connection between the primary filter screen sleeve 2 and the valve core body 1, after the primary filter screen sleeve 2 is fitted on the outside of the water filter screen 1a, it is connected to the retaining ring 3 on the outside of the valve core body 1 through the groove on the inside of the primary filter screen sleeve 2. At this time, the retaining ring 3 can support the primary filter screen sleeve 2 and fill the gaps between the upper and lower ends of the primary filter screen sleeve 2 and the valve core body 1.
[0036] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A faucet thermostatic valve core, comprising a valve core body (1), a water filter net (1a) is arranged on the valve core body (1), characterized in that, The filter screen (1a) is covered with a detachable primary filter screen sleeve (2); the primary filter screen sleeve (2) is formed by bending a rectangular mesh and connecting the ends; the cross-section of the rectangular mesh along its long side is a corrugated structure.
2. A faucet thermostatic cartridge according to claim 1, wherein, The primary filter screen (2) is provided with a convex surface and a concave surface. The concave surface is divided into a head and a neck, and the width of the neck is smaller than the width of the head.
3. A faucet thermostatic cartridge according to claim 2, wherein, The convex curved edge connects with the concave neck.
4. The faucet thermostatic cartridge of claim 1, wherein, The primary filter screen sleeve (2) has connecting parts at both ends and a positioning groove is provided in the connecting part, and a positioning block (2a) is provided in the positioning groove.
5. A faucet thermostatic cartridge according to claim 4, wherein, The positioning groove is L-shaped, and the positioning block (2a) is made of environmentally friendly rubber material and is locked in the positioning groove.
6. A faucet thermostatic cartridge according to any one of claims 1-5, wherein, A retaining ring (3) is provided at the valve core body (1), and a retaining groove that cooperates with the retaining ring (3) is provided on the inner side of the primary filter screen sleeve (2).
7. A faucet thermostatic cartridge according to claim 6 wherein, The inner side of the retaining ring (3) is connected to the valve core body (1), and a groove is provided in the retaining ring (3) for connecting with the connecting part.