Easily disassembled and assembled thermostatic valve core assembly and thermostatic valve using the same

Abstract

The present invention provides a constant temperature valve core assembly and a constant temperature valve using the constant temperature valve core assembly, belonging to the field of constant temperature sanitary wares. From right to left, it includes a constant temperature valve core handwheel, a compression cap and a constant temperature valve core. The compression cap is in an annular column shape, with a hollow middle part provided with a compression cap cavity. The constant temperature valve core handwheel includes a handwheel shell and a torsion bar. The torsion bar passes through the compression cap cavity and is fixedly connected to the temperature adjustment handle of the constant temperature valve core. Both ends of the compression cap are respectively abutted against the handwheel shell and the constant temperature valve core. The compression cap is stuck between the constant temperature valve core handwheel and the constant temperature valve core, and the three form a constant temperature valve core assembly integrally; a compression cap thread is provided on the outer peripheral wall of the left end of the compression cap, and a quick-release structure capable of applying force to rotate the compression cap is provided on the outer peripheral wall of the right end of the compression cap. In the present invention, the constant temperature valve core assembly is fixedly connected to the constant temperature valve body, and the constant temperature valve core assembly is disassembled and assembled integrally. The rotating part is located outside the outer shell, which provides an effective possibility for operation with conventional tools, and has a larger available space, which is more convenient for the disassembly and assembly of the constant temperature valve core assembly.

Description

Technical Field

[0001] The present invention belongs to the field of constant-temperature sanitary wares, and relates to a constant-temperature valve core assembly and a constant-temperature valve using the constant-temperature valve core assembly. Background Art

[0002] A constant-temperature valve is a plumbing device that mixes cold water and hot water to output warm water. Its core temperature control mechanism is a constant-temperature valve core, which is basically composed of a main body, a temperature sensing element, a return spring, a piston, etc. It automatically adjusts the mixing ratio of cold and hot water through the difference between the temperature of the mixed water outlet and the set temperature, so that the outlet water temperature is in a basically constant state. However, after the constant-temperature valve has been used for a long time and repeatedly opened or closed, the constant-temperature valve core of the constant-temperature valve may have problems such as dirt clogging the filter screen, the return spring failing, or other components being damaged. At this time, it is necessary to replace or repair the constant-temperature valve core.

[0003] Among various types of constant-temperature valves, the square constant-temperature valve is a type of constant-temperature valve product that is relatively favored by users in the current market. For example, a Chinese patent provides a square constant-temperature valve that is convenient for assembly and installation, with an application number of CN201420416238.8. It introduces that the basic structure of the square constant-temperature valve includes a cuboid-shaped outer shell, a valve core assembly installed inside the outer shell, and a valve seat provided on the back of the outer shell. The outer shell is composed of a top shell and a bottom shell. The valve core assembly is provided with a cold water inlet, a hot water inlet, a mixed water outlet, and a valve core for adjusting the outlet water temperature of the mixed water outlet. The square constant-temperature valve is hung on the wall through the valve seat.

[0004] Such constant-temperature valves have the following problems in actual use:

[0005] 1. The valve core for adjusting the outlet water temperature of the mixed water outlet is a constant-temperature valve core, which is directly fixedly connected to the main body structure of the constant-temperature valve (i.e., the above-mentioned valve core assembly). Due to the special shape of the main body of the square constant-temperature valve, in order to reduce the length of the water flow channel inside the main body of the constant-temperature valve, the constant-temperature valve core cavity for accommodating the constant-temperature valve core is located in the middle of the main body of the constant-temperature valve. This results in a relatively deep position of the constant-temperature valve core buried in the constant-temperature valve. The external hexagonal structure for disassembly and assembly on the constant-temperature valve core is located inside the outer shell. When disassembling and assembling the constant-temperature valve core, it is necessary to first remove the handwheel of the constant-temperature valve core, and then use special disassembly and installation tools to reach inside the outer shell and cooperate with the external hexagonal structure at the head of the constant-temperature valve core to turn the constant-temperature valve core for disassembly and replacement. This makes the disassembly and assembly operation of the constant-temperature valve core very inconvenient. For example, there will be tolerances in the casting of the external hexagonal structure of the constant-temperature valve core, and there are often mismatches between the professional disassembly and installation tools and the external hexagonal structure at the head of the constant-temperature valve core, and the constant-temperature valve core is often difficult to remove.

[0006] 2. The distance between the square constant-temperature valve and the installation wall is relatively close, and the operation space is limited when disassembling and assembling the constant-temperature valve core. It is not easy to use tools, which causes great inconvenience to the disassembly operation.

[0007] In the prior art, when disassembling and assembling the constant temperature valve core of a square constant temperature valve, it is not convenient to use conventional tools for operation. It is not easy to rotate and disassemble the constant temperature valve core outside the housing. Often, the entire constant temperature valve needs to be removed and then the constant temperature valve core is disassembled and assembled. The overall process is time-consuming and laborious, which increases the labor intensity and the disassembly and assembly process is very inconvenient. Summary of the Invention

[0008] Aiming at the phenomenon that the constant temperature valve core of a square constant temperature valve is not easy to disassemble and assemble in the prior art, the purpose of the present invention is to provide a constant temperature valve core assembly and a constant temperature valve using the constant temperature valve core assembly. The constant temperature valve core assembly is fixedly connected to the constant temperature valve body, and the disassembly and assembly part of the constant temperature valve core assembly is arranged outside the housing, making the disassembly and assembly process of the constant temperature valve core more convenient and labor-saving.

[0009] The above technical purpose of the present invention is achieved through the following technical solutions:

[0010] An easily disassembled and assembled constant temperature valve core assembly, characterized in that it includes a constant temperature valve core handwheel, a compression cap and a constant temperature valve core from right to left. The compression cap is in the shape of an annular column with a hollow middle as the compression cap cavity. The constant temperature valve core handwheel includes a handwheel housing and a torsion rod. The torsion rod passes through the compression cap cavity and is fixedly connected to the temperature adjustment handle of the constant temperature valve core. Both ends of the compression cap are abutted against the handwheel housing and the constant temperature valve core respectively; a compression cap thread is provided on the outer peripheral wall of the left end of the compression cap, and a rotating part for rotating the compression cap is provided on the outer peripheral wall of the right end of the compression cap.

[0011] Preferably, the rotating part is an externally-toothed structure circumferentially arranged or a polygonal shape. Both of these two shape structures are easy-to-twist structures. And the circumferential diameter of the rotating part is larger than the external hexagonal disassembly and assembly structure on the traditional constant temperature valve core, which is more convenient for the tool to apply force and correspondingly reduces the operation difficulty.

[0012] Preferably, the shaft diameter of the handwheel housing of the constant temperature valve core handwheel is larger than the shaft diameter of the compression cap cavity and smaller than the shaft diameter of the rotating part; a handwheel limit groove is provided on the right end face of the compression cap, and the handwheel housing is limited and abutted in the handwheel limit groove. The obvious effect is that the rotating part protrudes radially from the handwheel housing, which is convenient for the tool to pass over the handwheel housing and sleeve outside the rotating part to apply force to the compression cap.

[0013] Preferably, the torsion rod and the temperature adjustment handle of the constant temperature valve core are fixedly connected by a fastener. The fastener is a screw and has a nut and a screw rod. The accessories are commonly used and easy to obtain, and are also easy to disassemble and assemble. The nut can be an easy-to-twist part in the form of a slotted, cross, internal hexagonal or external hexagonal shape, etc.

[0014] Preferably, the torsion bar is in the shape of a hollow column. A limiting step is provided in the cavity near the left end of the torsion bar. A through hole is provided in the middle of the limiting step. The limiting step divides the cavity of the torsion bar into a left cavity of the torsion bar and a right cavity of the torsion bar. The temperature adjustment handle of the thermostatic valve core is inserted into the left cavity of the torsion bar. The fastener enters the torsion bar along the right cavity of the torsion bar. The nut is retained on the limiting step. The screw rod passes through the limiting step and is connected and fixed to the temperature adjustment handle. A threaded hole with an opening to the right is provided in the middle of the temperature adjustment handle. External teeth are provided on the outer peripheral wall of the temperature adjustment handle, and an internal tooth structure is correspondingly provided on the inner wall of the left cavity of the torsion bar. In this way, the temperature adjustment handle and the torsion bar can rotate synchronously. Rotating the handwheel of the thermostatic valve core drives the temperature adjustment handle to rotate, thereby adjusting the water temperature.

[0015] Preferably, a temperature limiting block protruding outward to the left is further provided at the end of the torsion bar. A limiting block is correspondingly provided on the thermostatic valve core. The temperature limiting block and the limiting block cooperate to control the rotation limit of the handwheel. Thereby, the water temperature is restricted from exceeding the limit temperature to avoid scalding the user.

[0016] Preferably, the thermostatic valve core includes a valve core seat, a thermal element, a return spring, a flow limiting component, and a valve core housing. Among them, the valve core seat is installed with a temperature adjustment handle and a handle sleeve. The valve core seat is integrally in a "convex" shape, having a convex part of the valve core seat and a wide part of the valve core seat. The right end face of the wide part of the valve core seat forms a shoulder of the valve core seat. The left end of the compression cap abuts against the shoulder of the valve core seat. A limiting block for temperature adjustment limiting is provided on the convex part of the valve core seat.

[0017] Preferably, the thermal element is a paraffin thermostatic component or a shape memory alloy spring.

[0018] Preferably, the flow limiting component is a piston that can be fixedly connected to the paraffin thermostatic component, or a single sliding sleeve or a double sliding sleeve component used in cooperation with the shape memory alloy spring.

[0019] This thermostatic valve core assembly can be applied to different thermal elements and the corresponding flow limiting components of the thermal elements, with diverse combination forms and a wide range of applications.

[0020] The present invention also provides a thermostatic valve, which includes a housing and a thermostatic valve body. Among them, a thermostatic valve core cavity for accommodating the thermostatic valve core is provided on the thermostatic valve body. The thermostatic valve also includes the above-mentioned thermostatic valve core assembly. The thermostatic valve core is inserted into the thermostatic valve core cavity. Internal threads of the thermostatic valve core cavity are provided at the orifice of the thermostatic valve core cavity. The thermostatic valve core assembly is threadedly connected to the internal threads of the thermostatic valve core cavity through the compression cap threads on the compression cap. The rotating part of the compression cap is on the outside of the housing, and the disassembly and assembly of the thermostatic valve core assembly are realized by applying force to the rotating part.

[0021] This thermostatic valve core assembly is mainly used on square thermostatic valves, but in actual applications, it is not limited to square thermostatic valves and can also be applied to other shaped thermostatic valves such as strip thermostatic valves, with a wide range of applications.

[0022] In the present invention, an integrated application mode of a thermostatic valve core assembly is adopted to replace the traditional mode of separately installing a thermostatic valve core and a thermostatic valve core handwheel, which simplifies the installation process. At the same time, the thermostatic valve core assembly has a compact structure, simple structures of various components, convenient operation during the assembly process, and saves time and effort.

[0023] In the present invention, the thermostatic valve core assembly is integrally disassembled and assembled, and the rotating part is located outside the housing, which provides an effective possibility for operating with conventional tools, and has a larger available space, making it more convenient to disassemble and assemble the thermostatic valve core assembly.

[0024] The thermostatic valve core is not directly connected to the thermostatic valve body, but is connected to the thermostatic valve body through a compression nut to achieve the installation and fixation of the thermostatic valve core. At the same time, the rotating part of the compression nut is outside the thermostatic valve housing, so that the disassembly and assembly operation of the thermostatic valve core assembly can be directly carried out outside the thermostatic valve without removing the thermostatic valve, and the disassembly and assembly method is simpler and more labor-saving. When the thermostatic valve core needs to be removed, only the fastener needs to be screwed out, and the thermostatic valve core will be naturally removed, thus achieving the effect of easy disassembly and assembly of the thermostatic valve core. The thermostatic valve core assembly and the thermostatic valve of the present invention have simple and compact structures and ingenious designs, providing a new idea for the installation of the thermostatic valve core, facilitating the maintenance and replacement of the thermostatic valve core, and further extending the service life of the thermostatic valve core and the thermostatic valve, and saving living costs. Description of the Drawings

[0025] Figure 1 It is an overall three-dimensional view of the thermostatic valve core assembly provided in Embodiment 1.

[0026] Figure 2 It is an exploded view of the thermostatic valve core assembly provided in Embodiment 1.

[0027] Figure 3 It is a structural schematic diagram of the valve core seat of the thermostatic valve core in the thermostatic valve core assembly provided in Embodiment 1.

[0028] Figure 4 It is a cross-sectional view of the temperature adjustment handle of the thermostatic valve core in the thermostatic valve core assembly provided in Embodiment 1.

[0029] Figure 5 It is a structural schematic diagram of the thermostatic valve core handwheel in the thermostatic valve core assembly provided in Embodiment 1.

[0030] Figure 6 It is a cross-sectional view of the thermostatic valve core handwheel in the thermostatic valve core assembly provided in Embodiment 1.

[0031] Figure 7 It is a structural schematic diagram of the compression nut in the thermostatic valve core assembly provided in Embodiment 1.

[0032] Figure 8 It is a cross-sectional view of the compression nut in the thermostatic valve core assembly provided in Embodiment 1.

[0033] Figure 9 It is a cross-sectional view of the constant temperature valve core assembly provided in the first embodiment.

[0034] Figure 10 It is a cross-sectional view of the constant temperature valve core assembly provided in the first embodiment from another angle.

[0035] Figure 11 It is a cross-sectional view of the constant temperature valve core provided in the second embodiment.

[0036] Figure 12 It is a cross-sectional view of the constant temperature valve core provided in the third embodiment.

[0037] Figure 13 It is a schematic structural diagram of the constant temperature valve provided in the third embodiment.

[0038] Figure 14 It is an exploded view of the constant temperature valve provided in the third embodiment.

[0039] Figure 15 It is a schematic structural diagram of the constant temperature valve body in the constant temperature valve provided in the third embodiment.

[0040] Figure 16 It is a cross-sectional view of the constant temperature valve provided in the third embodiment.

[0041] In the figure, 1. Constant temperature valve core handwheel; 11. Handwheel housing; 12. Torsion bar; 13. Limit step; 14. Left cavity of torsion bar; 15. Right cavity of torsion bar; 16. Gland; 17. Temperature limit block;

[0042] 2. Compression cap; 21. Compression cap cavity; 22. Compression cap thread; 23. Rotating part; 24. Handwheel limit groove;

[0043] 3. Constant temperature valve core; 31. Valve core valve seat; 311. Valve core valve seat convex part; 312. Wide part of valve core valve seat; 313. Shoulder of valve core valve seat; 314. Positioning convex block; 315. Limit ring groove; 32. Valve core housing; 321. Cold water inlet of valve core; 322. Cold water inlet of valve core; 323. Mixed water outlet of valve core; 33. Thermal element; 33A. Paraffin constant temperature component; 33B. Shape memory alloy spring; 34. Return spring; 35. Flow limiting component; 35A. Piston; 35B. Single sliding sleeve; 35C. Double sliding sleeve assembly; 36. Temperature adjusting handle; 361. Threaded hole; 37. Limit block; 38. Handle sleeve;

[0044] 4. Fastener; 41. Nut; 42. Screw;

[0045] 5. Constant temperature valve body; 51. Constant temperature valve core cavity; 511. Positioning groove; 512. Internal thread in constant temperature valve core cavity;

[0046] 6. Switch valve core assembly;

[0047] 7. Housing; 71. Outer cover; 72. Front cover; 73. Rear cover;

[0048] 8. Pipe fitting; 81. First pipe fitting; 82. Second pipe fitting; 83. Third pipe fitting;

[0049] 9. Wrench. Detailed implementation mode

[0050] The present invention will be further described in detail below with reference to the accompanying drawings.

[0051] This specific embodiment is only an interpretation of the present invention. The directions indicated are for the convenience of describing the technical content, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0052] Embodiment 1

[0053] As Figures 1-10 shown, a constant temperature valve core assembly is provided, which includes a constant temperature valve core handwheel 1, a compression cap 2 and a constant temperature valve core 3 from right to left. The compression cap 2 is stuck between the constant temperature valve core handwheel 1 and the constant temperature valve core 3. The constant temperature valve core handwheel 1 and the constant temperature valve core 3 are connected and fixed by a fastener 4, and the three form a constant temperature valve core assembly integrally.

[0054] As Figure 3 , 9 , 10 shown, the constant temperature valve core 3 includes a valve core seat 31, a thermal element 33, a return spring 34, a flow limiting component 35 and a valve core housing 32. A valve core cold water inlet 321 and a valve core hot water inlet 322 are provided on the peripheral wall of the valve core housing 32. A valve core mixed water outlet 323 is provided on the left part of the valve core housing 32. Cold and hot water enter the constant temperature valve core 3 from the valve core cold water inlet 321 and the valve core hot water inlet 322 respectively, are mixed inside the valve core, and flow out from the valve core mixed water outlet 323. A sealing ring for water isolation is also sleeved on the peripheral wall of the valve core housing 32.

[0055] In this embodiment, the thermal element 33 is a shape memory alloy spring 33B. Using the principle of thermal expansion and contraction, it acts together with the return spring 34 to push the flow limiting component 35 to move left and right along the axis. In this embodiment, the flow limiting component 35 is a single sliding sleeve 35B, and a ring step through which water can pass is provided in the middle. The shape memory alloy spring 33B and the return spring 34 are arranged on both sides of it, and pushing the single sliding sleeve 35B affects the size of the gap between its edge end and the valve core cold water inlet 321 and the valve core hot water inlet 322, and then affects the actual water intake of cold and hot water.

[0056] In this embodiment, a temperature adjustment handle 36 and a handle sleeve 38 are installed on the valve core seat 31. As Figure 3As shown, the valve core valve seat 31 is integrally in a "convex" shape, having a valve core valve seat convex part 311 and a valve core valve seat wide part 312. The valve core valve seat wide part 312 is threadedly connected to the valve core housing 32. A sealing ring for water isolation and leakage prevention is sleeved on the peripheral wall of the valve core valve seat 31 on the right side of the threaded connection. The right end face of the valve core valve seat wide part 312 forms a valve core valve seat shoulder 313. A positioning convex block 314 is also provided on the side wall of the valve core valve seat wide part 312 for positioning and installing the thermostatic valve core.

[0057] As Figure 4 , 5 , as shown in Figures 6, the thermostatic valve core handwheel 1 includes a handwheel housing 11, in the middle of which there is a torsion bar 12 extending leftward. The torsion bar 12 is in a hollow columnar shape. A limiting step 13 is provided in the cavity of the torsion bar 12 near the left end. A through hole is provided in the middle of the limiting step 13. The limiting step 13 divides the cavity of the torsion bar 12 into a torsion bar left cavity 14 and a torsion bar right cavity 15; the temperature adjustment handle 36 of the thermostatic valve core 3 is inserted into the torsion bar left cavity 14.

[0058] In this embodiment, the fastener 4 is a screw, having a nut 41 and a screw rod 42. The fastener 4 enters the torsion bar 12 along the torsion bar right cavity 15. The nut 41 is retained on the limiting step 13, and the screw rod 42 passes through the limiting step 13 and is fixedly connected to the temperature adjustment handle 36. A threaded hole 361 opening to the right is provided in the middle of the temperature adjustment handle 36 and corresponds to a thread; external teeth are provided on the outer peripheral wall of the temperature adjustment handle 36, and an internal tooth structure is correspondingly provided on the inner wall of the torsion bar left cavity 14.

[0059] A detachable gland 16 is installed at the open end of the torsion bar right cavity 15.

[0060] A temperature limiting block 17 protruding outward to the left is also provided at the end of the torsion bar 12. As Figure 3 , 10 , as shown in Figures, a limiting ring groove 315 is provided on the right end face of the valve core valve seat convex part 311, and a limiting block 37 for temperature adjustment limiting is provided on the limiting ring groove 315. The temperature limiting block 17 moves along the limiting ring groove 315. The temperature limiting block 17 and the limiting block 37 cooperate to control the rotation limit of the handwheel.

[0061] As Figure 7 , 8 , as shown, the compression cap 2 is in an annular columnar shape, with a hollow compression cap cavity 21 in the middle. A compression cap thread 22 is provided on the outer peripheral wall at the left end of the compression cap 2, and a rotating part 23 for applying force to rotate the compression cap 2 is provided on the outer peripheral wall at the right end of the compression cap 2.

[0062] The torsion bar 12 of the thermostatic valve core handwheel 1 passes through the compression cap cavity 21 and is fixedly connected to the temperature adjustment handle 36 of the thermostatic valve core 3 through the fastener 4. The two ends of the compression cap 2 are respectively abutted against the handwheel housing 11 and the valve core valve seat shoulder 313 of the thermostatic valve core 3.

[0063] In this embodiment, the rotating part 23 is external teeth arranged circumferentially.

[0064] The axial diameter of the handwheel housing 11 of the thermostatic valve core handwheel 1 is larger than the axial diameter of the pressure cap cavity 21 and smaller than the axial diameter of the rotating part 23; a handwheel limiting groove 24 is provided on the right end face of the pressure cap 2, and the handwheel housing 11 is limited and abutted against the handwheel limiting groove 24.

[0065] The thermostatic valve core assembly is a thermostatic valve core assembly in which the pressure cap 2 is clamped between the thermostatic valve core handwheel 1 and the thermostatic valve core 3. The thermostatic valve core handwheel 1 and the thermostatic valve core 3 are connected and fixed by a fastener 4. The three are integrated into a thermostatic valve core assembly.

[0066] Example 2

[0067] like Figure 11 As shown, relative to the first embodiment, in this embodiment, the flow limiting assembly 35 of the thermostatic valve core 3 is a double sleeve assembly 35C, which is divided into an outer sleeve 35C1 and an inner sleeve 35C2. The outer sleeve 35C1 is fixed in the cavity of the valve core housing 32, and the inner sleeve 35C2 is sleeved in the outer sleeve 35C1. A ring step for water flow is provided in the middle of the inner sleeve 35C2, and a memory alloy spring 33B and a return spring 34 are arranged on both sides thereof. As the water temperature changes, the memory alloy spring 33B expands and contracts, pushing the inner sleeve 35C2 to move left and right in the outer sleeve 35C1, affecting the size of the cold and hot water inlet gaps formed by the inner sleeve 35C2 and the outer sleeve 35C1, and then affecting the actual water inlet of cold and hot water.

[0068] The double sleeve components in this embodiment are both made of ceramic material, with low sliding resistance and higher sensitivity in water temperature regulation.

[0069] Example 3

[0070] like Figure 12 As shown, compared to the first embodiment, in this embodiment, the thermosensitive element 33 is a paraffin thermostatic assembly 33A. Paraffin thermostatic assembly 33A has a long history of development and sophisticated technology, and is still widely used in the field of thermostatic valves (thermostatic faucets). The flow limiting assembly 35 is a piston 35A that can be fixedly connected to the paraffin thermostatic assembly 33A. A return spring 34 is mounted on the paraffin thermostatic assembly 33A. As the water temperature changes, the temperature bulb of the paraffin thermostatic assembly 33A expands and contracts, cooperating with its push rod to cause the piston to move in the opposite direction to accommodate the cold and hot water inlets. This pushes the piston 35A, affecting the size of the gap between its edge and the valve core's cold water inlet 321 and hot water inlet 322, thereby affecting the actual amount of cold and hot water entering.

[0071] This embodiment also provides a thermostatic valve, which is a square thermostatic valve, but is not limited to this type. It can also be a long strip thermostatic valve, etc., which requires a thermostatic valve core.

[0072] The thermostatic valve in this embodiment, such as Figures 12-16As shown in the figure, it includes a housing 7, a thermostatic valve body 5, a switching valve core assembly 6, a thermostatic valve core assembly, and pipe connectors 81, 82, and 83 for connecting to the water circuit. The housing 7 is a combined structure, divided into an outer cover 71, a front cover 72, and a rear cover 73. The front cover 72 and the rear cover 73 are assembled by bolts passing through the thermostatic valve body 5. The switching valve core assembly 6 includes accessories such as a switching valve core, a switching valve core handwheel, and a gland, and is used to control the flow rates of cold and hot water.

[0073] The thermostatic valve body 5 is provided with a thermostatic valve core cavity 51 for accommodating the thermostatic valve core 3, a switching valve core cavity 52 for accommodating the switching valve core, a cold water inlet passage 53, a hot water inlet passage 54, and a mixed water outlet passage 55. The cold water inlet passage 53 and the hot water inlet passage 54 communicate with the switching valve core cavity 52 respectively. The thermostatic valve core cavity 51 is provided with a cold water inlet 56 and a hot water inlet 57, which correspond to the valve core cold water inlet 321 and the valve core hot water inlet 322 respectively; the cold water inlet 56 and the hot water inlet 57 also communicate with the switching valve core cavity 52 respectively; cold water enters through the cold water inlet passage 53 and is guided by the switching valve core assembly 6 into the cold water inlet 56, and hot water enters through the hot water inlet passage 54 and is guided by the switching valve core assembly 6 into the hot water inlet 57. The cold and hot water are mixed in the thermostatic valve core 3 and flow out from the valve core mixed water outlet 323 and the mixed water outlet passage 55.

[0074] In this embodiment, the thermostatic valve core 3 is inserted into the thermostatic valve core cavity 51 of the thermostatic valve body 5. The gland 2 is threadedly connected to the thermostatic valve core cavity 51 of the thermostatic valve body 5, and the port of the thermostatic valve core cavity 51 is provided with an internal thread that mates with the gland thread 22. The rotating part 23 of the gland 2 is on the outside of the housing 7. The thermostatic valve core assembly is fixedly connected to the thermostatic valve body 5 through the gland thread 22 on the gland 2, and the disassembly and assembly of the thermostatic valve core assembly are realized by applying force to the rotating part 23 on the outside of the housing 7.

[0075] In this embodiment, a positioning convex block 314 is provided on the side wall of the wide part 312 of the valve core seat to realize the positioning and installation of the thermostatic valve core. On the inner wall of the thermostatic valve core cavity 51 of the thermostatic valve body 5, a positioning groove 511 in the axial direction is correspondingly provided. The positioning convex block 314 cooperates with the positioning groove 511 to guide the thermostatic valve core 3 in and out.

[0076] This thermostatic valve further includes a wrench 9, which is a ring-shaped structure with internal teeth and mates with the external teeth of the rotating part 23. The wrench 9 passes through the outside of the thermostatic valve core handwheel 1 and is sleeved on the rotating part 23 of the gland. When the wrench 9 is pulled up and down, it drives the gland 2 to rotate and tighten or loosen, thereby realizing the disassembly and assembly of the thermostatic valve core assembly. When not in use, the wrench 9 can be removed at any time, which is convenient and easy to operate.

[0077] The constant temperature valve core assembly provided by this embodiment and the constant temperature valve using this constant temperature valve core assembly. The compression cap 2 is stuck between the constant temperature valve core handwheel 1 and the constant temperature valve core 3, and the three form a constant temperature valve core assembly integrally. The constant temperature valve core assembly is fixedly connected to the constant temperature valve body 5 through the compression cap thread 22 on the compression cap 2. By rotating the compression cap 2, it moves left and right along the axis, driving the left and right movement of the constant temperature valve core assembly. The force-applying rotating part 23 tightens and fixes the constant temperature valve core assembly. When disassembling the constant temperature valve core assembly, apply force to the rotating part 23 in the reverse direction, and screw out the compression cap 2 together with the entire constant temperature valve core assembly, that is, disassemble the constant temperature valve core assembly. The constant temperature valve core handwheel 1 is also removed at the same time, which also facilitates the disassembly and assembly of the constant temperature valve core handwheel 1.

[0078] The constant temperature valve core 3 is not directly connected to the constant temperature valve body 5, but is connected to the constant temperature valve body 5 through the compression cap 2 to achieve the installation and fixation of the constant temperature valve core 3. At the same time, the rotating part 23 of the compression cap 2 is on the outside of the constant temperature valve housing 7, so that the disassembly and assembly operation of the constant temperature valve core assembly can be directly carried out on the outside of the constant temperature valve without removing the constant temperature valve, and the disassembly and assembly method is simpler and more labor-saving.

[0079] When it is necessary to disassemble the constant temperature valve core 3, just remove the gland 16 of the constant temperature valve core handwheel 1, screw out the fastener 4, and the constant temperature valve core 3 will be disassembled naturally, so as to achieve the effect of easy disassembly and assembly of the constant temperature valve core.

[0080] This constant temperature valve core assembly and constant temperature valve have a simple and compact structure and a clever design, providing a new idea for the installation of the constant temperature valve core, facilitating the maintenance and replacement of the constant temperature valve core, and thus extending the service life of the constant temperature valve core and the constant temperature valve, saving living costs.

[0081] The above description is only an exemplary implementation manner of the present invention, and is not used to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A thermostatic valve core assembly that is easy to disassemble and assemble, characterized in that, From right to left, it includes a thermostatic valve core handwheel (1), a compression cap (2) and a thermostatic valve core (3). The compression cap (2) is in an annular column shape, and the middle part is hollow to form a compression cap cavity (21). The thermostatic valve core handwheel (1) includes a handwheel housing (11) and a torsion bar (12). The torsion bar (12) passes through the compression cap cavity (21) and is fixedly connected to the temperature adjustment handle (36) of the thermostatic valve core (3). The two ends of the compression cap (2) are respectively abutted against the handwheel housing (11) and the thermostatic valve core (3). A compression cap thread (22) is provided on the outer peripheral wall at the left end of the compression cap (2), and a rotating part (23) for rotating the compression cap (2) is provided on the outer peripheral wall at the right end of the compression cap (2). Among them, the shaft diameter of the handwheel housing (11) of the thermostatic valve core handwheel (1) is larger than the shaft diameter of the compression cap cavity (21) and smaller than the shaft diameter of the rotating part (23). A handwheel limit groove (24) is provided on the right end face of the compression cap (2), and the handwheel housing (11) is abutted and limited in the handwheel limit groove (24). The torsion bar (12) and the temperature adjustment handle (36) of the thermostatic valve core (3) are fixedly connected through a fastener (4). The thermostatic valve core assembly is fixedly connected to the thermostatic valve body (5) through the compression cap thread (22) on the compression cap (2). By rotating the compression cap (2), it moves left and right along the axis, driving the left and right movement of the thermostatic valve core assembly. Applying force to the rotating part (23) tightens and fixes the thermostatic valve core assembly. When disassembling the thermostatic valve core assembly, apply force to the rotating part (23) in the reverse direction to screw out the compression cap (2) together with the entire thermostatic valve core assembly.

2. The detachable thermostatic valve element assembly according to claim 1, characterized in that, The rotating part (23) is an externally toothed or polygonal shape arranged circumferentially.

3. The detachable thermostatic valve core assembly according to claim 1, characterized in that, The fastener (4) is a screw, having a nut (41) and a screw rod (42).

4. The detachable thermostatic valve element assembly according to claim 3, wherein, The torsion bar (12) is in a hollow column shape. A limit step (13) is provided in the cavity near the left end of the torsion bar (12). A through hole is provided in the middle of the limit step (13). The limit step (13) divides the cavity of the torsion bar (12) into a left torsion bar cavity (14) and a right torsion bar cavity (15). The temperature adjustment handle (36) of the thermostatic valve core (3) is inserted into the left torsion bar cavity (14). The fastener (4) enters the torsion bar (12) along the right torsion bar cavity (15). The nut (41) is retained on the limit step (13), and the screw rod (42) passes through the limit step (13) and is connected and fixed to the temperature adjustment handle (36). A threaded hole (361) with an opening to the right is provided in the middle of the temperature adjustment handle (36). External teeth are provided on the outer peripheral wall of the temperature adjustment handle (36), and corresponding internal teeth are provided on the inner wall of the left torsion bar cavity (14).

5. The detachable thermostatic valve element assembly according to claim 4, characterized in that, A temperature limit block (17) protruding outward to the left is further provided at the end of the torsion bar (12). A limit block (37) is correspondingly provided on the thermostatic valve core (3). The temperature limit block (17) and the limit block (37) cooperate to control the rotation limit of the handwheel.

6. The easily disassembled and assembled constant temperature valve core assembly according to claim 5, wherein, The constant temperature valve core (3) includes a valve core seat (31), a thermal element (33), a return spring (34), a flow limiting component (35) and a valve core housing (32). The valve core seat (31) is installed with a temperature adjusting handle (36) and a handle sleeve (38). The valve core seat (31) has a valve core seat convex part (311) and a valve core seat wide part (312). The right end face of the valve core seat wide part (312) forms a valve core seat shoulder (313). The left end of the compression cap (2) abuts against the valve core seat shoulder (313). A limiting block (37) for temperature adjustment limiting is arranged on the valve core seat convex part (311).

7. The easily disassembled and assembled constant temperature valve core assembly according to claim 6, wherein the thermal element (33) is a paraffin constant temperature assembly (33A) or a shape memory alloy spring (33B).

8. The easily disassembled and assembled constant temperature valve core assembly according to claim 7, wherein the flow limiting component (35) is a piston (35A) that can be fixedly connected to the paraffin constant temperature assembly (33A), or a single sliding sleeve (35B) or a double sliding sleeve assembly (35C) used in cooperation with the shape memory alloy spring (33B).

9. A thermostatic valve, comprising a housing (7) and a thermostatic valve body (5), wherein a thermostatic valve core cavity (51) for accommodating a thermostatic valve core (3) is provided on the thermostatic valve body (5), and is characterized in that, The constant temperature valve further includes the constant temperature valve core assembly (0) according to any one of claims 1-8. Its constant temperature valve core (3) is inserted into the constant temperature valve core cavity (51). The orifice of the constant temperature valve core cavity (51) is provided with an internal thread (512) in the constant temperature valve core cavity. The constant temperature valve core assembly (0) is threadedly connected to the constant temperature valve core cavity (51) through the compression cap thread (22) on the compression cap (2). The rotating part (23) of the compression cap (2) is on the outside of the housing (7). The disassembly and assembly of the constant temperature valve core assembly are realized by applying force to the rotating part (23).

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