Thermostatic valve core seat

Abstract

A constant-temperature valve element seat comprises a valve element seat body, and a valve element hole is formed in the center of the upper end face of the valve element seat body. A plurality of positioning holes are formed in the bottom of the valve core hole; a boss is arranged in the middle of the lower surface of the valve element base body. A cold water inlet hole and a hot water inlet hole are respectively formed in the left and right sides of the lower surface of the boss; a limiting rod is arranged on one side of the lower surface of the boss; the lower end of the limiting rod is lower than the lower surface of the boss; a plurality of water outlets communicated with the valve core hole are formed in the outer wall of the lower part of the valve core seat main body; a left expansion hole communicated with the cold water inlet hole is formed in the left side of the hole bottom of the valve element hole. A right expansion hole communicated with the hot water inlet hole is formed in the right side of the bottom of the valve element hole. According to the constant-temperature valve element seat, close fit of the check valve and the constant-temperature valve element can be achieved, the structure of a faucet body can be effectively simplified, and therefore the machining difficulty, the machining cost and the assembling cost are reduced, meanwhile, the disassembling efficiency can be guaranteed, and the maintenance cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of thermostatic faucets, and in particular to a thermostatic valve core seat. Background Technology

[0002] A thermostatic faucet is a type of faucet that uses a thermostatic valve core to mix cold and hot water to create warm water at a certain temperature.

[0003] In traditional concealed thermostatic faucets, the thermostatic valve core and check valve are installed in different positions on the faucet body. Therefore, it is necessary to process the structure for installing the thermostatic valve core and check valve separately on the faucet body, which complicates the internal structure of the faucet body, increases the difficulty of processing the faucet body, increases the processing and assembly costs, and makes it more difficult to disassemble the thermostatic valve core and check valve later, affecting the disassembly efficiency.

[0004] At the same time, if the position on the faucet body used to install the thermostatic valve core or check valve becomes worn, the entire faucet body must be replaced, which significantly increases maintenance costs. Summary of the Invention

[0005] The present invention aims to solve the existing technical problem by providing a thermostatic valve core seat that not only enables a tight fit between the check valve and the thermostatic valve core, but also effectively simplifies the main structure of the faucet, thereby reducing processing difficulty, processing cost and assembly cost, while ensuring disassembly efficiency and reducing maintenance costs.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] This utility model discloses a thermostatic valve core seat, including a valve core seat body. A valve core hole is provided at the center of the upper end face of the valve core seat body. Several positioning holes are provided at the bottom of the valve core hole. A boss is provided in the middle of the lower surface of the valve core seat body. Cold water inlet holes and hot water inlet holes are respectively provided on the left and right sides of the lower surface of the boss. A limiting rod is provided on one side of the lower surface of the boss, with its lower end lower than the lower surface of the boss. Several water outlets communicating with the valve core hole are provided on the lower outer wall of the valve core seat body. A left expansion hole communicating with the cold water inlet hole is provided on the left side of the bottom of the valve core hole. A right expansion hole communicating with the hot water inlet hole is provided on the right side of the bottom of the valve core hole. Both the left and right expansion holes are elongated arc-shaped holes.

[0008] The length of the left expansion hole is greater than the diameter of the cold water inlet hole; the length of the right expansion hole is greater than the diameter of the hot water inlet hole.

[0009] Both the lower end opening of the cold water inlet and the lower end opening of the hot water inlet are provided with a sealing groove that surrounds their outer ring. The sealing groove is annular and located on the lower surface of the boss.

[0010] The outer wall of the valve core seat body is provided with an annular groove located above the water outlet.

[0011] The upper outer wall of the valve core seat body is provided with external threads.

[0012] The lower surface of the valve core seat body is provided with a positioning seat corresponding to the position of the positioning hole, and the lower end of the positioning hole extends into the positioning seat.

[0013] The beneficial effects of this utility model are:

[0014] Compared with existing technologies, the thermostatic valve core seat of this invention uses a valve core seat body instead of the faucet body to machine a valve core hole for installing the thermostatic valve core, as well as cold water inlet and hot water inlet holes for installing the check valve. The thermostatic valve core and check valve are integrated onto the valve core seat body, achieving a tight fit between them. At this point, simply installing the valve core seat body onto the faucet body allows for the simultaneous assembly of the thermostatic valve core and check valve. This assembly method eliminates the need for separate internal machining of the thermostatic valve core and check valve within the faucet body. The faucet body structure is simplified, thereby reducing processing difficulty, processing cost, and assembly cost. When it is necessary to disassemble the thermostatic valve core and check valve, only the valve core seat body needs to be removed from the faucet body to disassemble the thermostatic valve core and check valve at the same time, which can effectively reduce disassembly difficulty and improve disassembly efficiency. If the valve core hole and the cold water inlet hole and hot water inlet hole used to install the check valve are worn, only the valve core seat body needs to be replaced, without replacing the entire faucet body, which can effectively reduce maintenance costs and effectively avoid damage to parts during maintenance. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the thermostatic valve core seat of this utility model from one angle;

[0016] Figure 2 This is a structural schematic diagram of the thermostatic valve core seat of this utility model from another angle;

[0017] Figure 3 Top view of the thermostatic valve core seat of this utility model. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Please see Figures 1 to 3This utility model provides a thermostatic valve core seat, including a valve core seat body 1. A valve core hole 2 is provided at the center of the upper end surface of the valve core seat body 1. Several positioning holes 3 are provided at the bottom of the valve core hole 2. A boss 4 is provided in the middle of the lower surface of the valve core seat body 1. Cold water inlet hole 5 and hot water inlet hole 6 are respectively provided on the left and right sides of the lower surface of the boss 4. A limiting rod 7 is provided on one side of the lower surface of the boss 4, and the lower end of the limiting rod 7 is lower than the lower surface of the boss 4. Several water outlets 8 communicating with the valve core hole 2 are provided on the lower outer wall of the valve core seat body 1. A left expansion hole 9 communicating with the cold water inlet hole 5 is provided on the left side of the bottom of the valve core hole 2. A right expansion hole 10 communicating with the hot water inlet hole 6 is provided on the right side of the bottom of the valve core hole 2. Both the left expansion hole 9 and the right expansion hole 10 are elongated arc-shaped holes.

[0020] The length of the left expansion hole 9 is greater than the diameter of the cold water inlet hole 5; the length of the right expansion hole 10 is greater than the diameter of the hot water inlet hole 6.

[0021] The lower end opening of the cold water inlet 5 and the lower end opening of the hot water inlet 6 are each provided with a sealing groove 11 surrounding their outer ring. The sealing groove 11 is annular. The sealing groove 11 is located on the lower surface of the boss 4.

[0022] The outer wall of the valve core seat body 1 is provided with an annular groove 12 located above the water outlet 8.

[0023] The upper outer wall of the valve core seat body 1 is provided with an external thread 13.

[0024] The lower surface of the valve core seat body 1 is provided with a positioning seat 15 corresponding to the position of the positioning hole 3, and the lower end of the positioning hole 3 extends into the positioning seat 15.

[0025] The method of using this utility model is as follows:

[0026] Simply machine a round hole for fitting the thermostatic valve core seat on the faucet body, and then machine a limiting hole at the bottom of the round hole to match the limiting rod. The valve core seat body can then be precisely installed in the round hole by inserting the limiting rod 7 into the limiting hole, thereby ensuring that the cold water inlet 5 can be connected with the cold water channel inside the faucet body, and that the hot water inlet 6 can be connected with the hot water channel inside the faucet body.

[0027] After the thermostatic valve core seat is installed and fixed on the faucet body, the thermostatic valve core can be inserted into the valve core hole 2 through the upper end orifice of the valve core hole 2. At the same time, the positioning rod on the lower surface of the thermostatic valve core can be inserted into the corresponding positioning hole 3 to achieve precise positioning of the thermostatic valve core. When the thermostatic valve core is positioned, the lower surface of the thermostatic valve core fits against the bottom of the valve core hole 2, automatically achieving a seal. At this time, the cold water hole on the lower surface of the thermostatic valve core is opposite to the left expansion hole 9, and the hot water hole on the lower surface of the thermostatic valve core is opposite to the right expansion hole 10. Both the cold water inlet hole 5 and the hot water inlet hole 6 can be used to install check valves. When cold water from the cold water pipe connected to the faucet body is delivered to the cold water channel inside the faucet body, the cold water will sequentially pass through the check valve in the cold water inlet hole 5, the left expansion hole 9, and the cold water hole on the lower surface of the thermostatic valve core to enter the thermostatic valve. When hot water from the hot water pipe connected to the faucet body is delivered to the hot water channel inside the faucet body, the hot water will sequentially enter the mixing chamber inside the thermostatic valve core through the check valve in the hot water inlet 6, the right expansion hole 10, and the hot water hole on the lower surface of the thermostatic valve core. Finally, the cold water and hot water are mixed in the mixing chamber inside the thermostatic valve core to form warm water with a certain temperature. As the thermostatic valve core opens, the warm water flows out from the outlet hole on the outer wall of the thermostatic valve core to the gap between the outer wall of the thermostatic valve core and the inner wall of the valve core hole 2. Finally, it flows into the outlet channel inside the faucet body through the outlet 8 located on the outer wall of the valve core seat body 1, and sprays out from the outlet connector of the thermostatic faucet for use. The check valves in the cold water inlet 5 and the hot water inlet 6 can effectively prevent water backflow and play a backflow prevention role.

[0028] In summary, this utility model replaces the faucet body with a thermostatic valve core seat to machine the valve core hole 2 for installing the thermostatic valve core and the cold water inlet hole 5 and hot water inlet hole 6 for installing the check valve. The thermostatic valve core and check valve are integrated onto the valve core seat body 1, achieving a tight fit between them. At this point, simply installing the valve core seat body 1 onto the faucet body allows for the simultaneous assembly of the thermostatic valve core and check valve. This assembly method eliminates the need for separate internal structures for installing the thermostatic valve core and check valve on the faucet body, effectively simplifying the faucet installation process. The main body structure effectively reduces processing difficulty, processing cost, and assembly cost. When it is necessary to disassemble the thermostatic valve core and check valve, only the valve core seat body 1 needs to be removed from the faucet body to disassemble the thermostatic valve core and check valve at the same time, which can effectively reduce disassembly difficulty and improve disassembly efficiency. If the valve core hole 2 and the cold water inlet hole 5 and hot water inlet hole 6 used to install the check valve are worn, only the valve core seat body 1 needs to be replaced, without replacing the entire faucet body, which effectively reduces maintenance costs and can effectively prevent parts from being damaged during maintenance.

[0029] The length of the left expansion hole 9 is greater than the diameter of the cold water inlet hole 5, and the length of the right expansion hole 10 is greater than the diameter of the hot water inlet hole 6. This structural design can further ensure the coverage area of ​​the left expansion hole 9 and the right expansion hole 10, thereby ensuring that the cold water inlet hole 5 can always be connected to the cold water hole on the lower surface of the thermostatic valve core through the left expansion hole 9, and ensuring that the hot water inlet hole 6 can always be connected to the hot water hole on the lower surface of the thermostatic valve core through the right expansion hole 10.

[0030] Both the lower end of the cold water inlet hole 5 and the lower end of the hot water inlet hole 6 are provided with a sealing groove 11 that surrounds their outer ring. The sealing groove 11 is annular and located on the lower surface of the boss 4. A matching sealing ring can be installed in the sealing groove 11 to further ensure the sealing performance of the lower end of the cold water inlet hole 5 and the lower end of the hot water inlet hole 6.

[0031] The outer wall of the valve core seat body 1 is provided with an annular groove 12 located above the water outlet 8. An O-ring that matches it can be installed in the annular groove 12 to further ensure the sealing performance of the valve core seat body 1 when it is installed on the faucet body of the thermostatic faucet and to avoid water leakage.

[0032] A limiting cap can be screwed onto the upper end of the valve core seat body 1 via external thread 13 to restrict the thermostatic valve core within the valve core hole 2. Similarly, when the valve core seat body 1 is installed on the faucet body, a cap can be used to restrict the valve core seat body 1 within the round hole of the faucet body. This effectively simplifies the structure used for limiting while ensuring the stability of the valve core seat body 1 and the thermostatic valve core after installation.

[0033] The lower surface of the valve core seat body 1 is provided with a positioning seat 15 corresponding to the position of the positioning hole 3. The lower end of the positioning hole 3 extends into the positioning seat 15. The presence of the positioning seat 15 can effectively increase the hole depth of the positioning hole 3, thereby further ensuring the stability of the thermostatic valve core when it is positioned through the positioning hole 3. In addition, the positioning seat 15 is integrated with the boss 4, which can effectively ensure the strength of the positioning seat 15 and facilitate the processing of the positioning hole 3.

Claims

1. A thermostatic valve core seat, comprising a valve core seat body, characterized in that: A valve core hole is provided at the center of the upper end face of the valve core seat body; several positioning holes are provided at the bottom of the valve core hole; a boss is provided in the middle of the lower surface of the valve core seat body; cold water inlet and hot water inlet are respectively provided on the left and right sides of the lower surface of the boss; a limiting rod is provided on one side of the lower surface of the boss, and the lower end of the limiting rod is lower than the lower surface of the boss; several water outlets communicating with the valve core hole are provided on the lower outer wall of the valve core seat body; a left expansion hole communicating with the cold water inlet is provided on the left side of the bottom of the valve core hole; a right expansion hole communicating with the hot water inlet is provided on the right side of the bottom of the valve core hole; both the left and right expansion holes are elongated arc-shaped holes.

2. The thermostatic valve core seat according to claim 1, characterized in that: The length of the left expansion hole is greater than the diameter of the cold water inlet hole; the length of the right expansion hole is greater than the diameter of the hot water inlet hole.

3. A thermostatic valve core seat according to claim 1, characterized in that: Both the lower end opening of the cold water inlet and the lower end opening of the hot water inlet are provided with a sealing groove that surrounds their outer ring. The sealing groove is annular and located on the lower surface of the boss.

4. A thermostatic valve core seat according to claim 1, characterized in that: The outer wall of the valve core seat body is provided with an annular groove located above the water outlet.

5. A thermostatic valve core seat according to claim 1, characterized in that: The upper outer wall of the valve core seat body is provided with external threads.

6. A thermostatic valve core seat according to claim 1, characterized in that: The lower surface of the valve core seat body is provided with a positioning seat corresponding to the position of the positioning hole, and the lower end of the positioning hole extends into the positioning seat.

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