Constant-temperature valve element convenient to disassemble and assemble and constant-temperature faucet

Abstract

A constant-temperature valve element convenient to disassemble and assemble comprises a constant-temperature valve element body used for being installed in a faucet shell, the end of the constant-temperature valve element body is sleeved with a gland, the gland is in a hollow column shape, an annular blocking shoulder is arranged on the gland, and the gland is divided into a connecting part and a rotating part through the annular blocking shoulder. An outer thread used for being in threaded connection with a faucet shell is arranged on the peripheral wall of the connecting part, the rotating part is annular and forms an inner cavity, and the gland is movably arranged at the upper end of the constant-temperature valve element body in a sleeving mode and axially restrained on the constant-temperature valve element body through a clamping spring arranged on the constant-temperature valve element body. Therefore, the gland is driven to rotate relative to the constant-temperature valve element body. The utility model further provides a constant-temperature faucet with the constant-temperature valve element. The constant-temperature valve core has the advantages that a user can manually rotate the rotating part without a tool, so that the gland rotates relative to the constant-temperature valve core body, and the gland can drive the constant-temperature valve core body to be mounted in a water faucet shell or dismounted from the water faucet shell.

Description

Technical Field

[0001] The utility model relates to the field of valve cores, in particular to a thermostatic valve core which is convenient for disassembly and assembly. The utility model also relates to a thermostatic faucet with the thermostatic valve core. Background Art

[0002] At present, in order to keep the outlet water temperature constant, a thermostatic valve core is generally provided on the shower, and a temperature sensing element is provided inside the thermostatic valve core, which can adjust the amount of cold water and hot water entering, so that the mixed outlet water is always kept within an appropriate range. However, after long-term use, the thermostatic valve core is repeatedly opened or closed, and the filter screen is clogged with dirt, the return spring fails, or other components are damaged. At this time, the thermostatic valve core needs to be replaced or repaired. When the thermostatic valve core in the prior art is disassembled and assembled, it is not convenient to use conventional tools to operate, so the disassembly and assembly process requires the manufacturer's professionals to operate, which increases the labor intensity.

[0003] The existing thermostatic valve core has made corresponding improvements to the above-mentioned problems. As shown in the Chinese invention patent application number CN201910826802.0 (application publication number CN110594451A) "Easy-to-disassemble thermostatic valve core assembly and thermostatic valve using the thermostatic valve core assembly", the thermostatic valve core assembly includes a thermostatic valve core handwheel, a pressure cap and a thermostatic valve core. The pressure cap is stuck between the thermostatic valve core handwheel and the thermostatic valve core. The thermostatic valve core handwheel and the thermostatic valve core are connected and fixed by fasteners, wherein a rotating part is provided on the outer peripheral wall of the pressure cap, and the rotating part is circumferentially arranged external teeth. The wrench can be sleeved on the rotating part, and the wrench is turned to drive the pressure cap to rotate and tighten or loosen, thereby realizing the disassembly and assembly of the thermostatic valve core assembly.

[0004] Although the above-mentioned thermostatic valve core can be disassembled and assembled by a wrench, the rotating part of the thermostatic valve core is set in the gap between the handwheel and the valve core housing, and it must rely on external tools such as wrenches for disassembly and installation. In actual use scenarios, if there are no conventional tools such as wrenches in the user's surrounding environment, the user still cannot disassemble it independently. Therefore, it is still necessary for the manufacturer's professionals to come to the site to disassemble the valve core, and then repair or replace it. Therefore, the existing thermostatic valve core is still not convenient for users to disassemble. For this reason, further improvements need to be made to the thermostatic valve core. Summary of the invention

[0005] The first technical problem to be solved by the utility model is to provide a thermostatic valve core which is easy to disassemble and assemble and can be disassembled and assembled without tools in view of the above-mentioned existing technical status.

[0006] The second technical problem to be solved by the present invention is to provide a thermostatic faucet with the thermostatic valve core according to the above-mentioned existing technical status.

[0007] The technical solution adopted by the utility model to solve the first technical problem is: the thermostatic valve core that is easy to disassemble and assemble includes a thermostatic valve core body for being installed in a faucet housing, and is characterized in that: a pressure cap is sleeved on the end of the thermostatic valve core body, the pressure cap is in the shape of a hollow column, and an annular shoulder is provided on the pressure cap, and the annular shoulder divides the pressure cap into a connecting part and a rotating part, the outer peripheral wall of the connecting part is provided with an external thread for threaded connection with the faucet housing, the rotating part is annular and forms an inner cavity, the pressure cap is movably sleeved on the upper end of the thermostatic valve core body, and is axially constrained on the thermostatic valve core body by a retaining spring provided on the thermostatic valve core body, and a user can manually rotate the rotating part, thereby driving the pressure cap to rotate relative to the thermostatic valve core body.

[0008] In order to axially constrain the pressure cover on the thermostatic valve core body, preferably, an annular groove is provided on the thermostatic valve core body, the retaining spring is clamped in the annular groove, and the bottom surface of the inner cavity of the pressure cover abuts against the lower surface of the retaining spring to prevent the pressure cover from axially moving relative to the thermostatic valve core body.

[0009] Furthermore, a gasket is provided above the bottom surface of the inner cavity of the gland, and the bottom surface of the inner cavity abuts against the retaining spring through the gasket. The gasket can increase the friction between the inner cavity and the retaining spring, so that when the gland is removed, the retaining spring can prevent the gland from moving axially relative to the thermostatic valve core body.

[0010] In order to facilitate the user to manually rotate the rotating part, preferably, the rotating part is provided with anti-skid teeth for increasing friction. The user holds the anti-skid teeth on the rotating part, thereby driving the gland to rotate relative to the thermostatic valve core body.

[0011] In order to prevent the thermostatic valve core body from rotating when the gland rotates, preferably, the thermostatic valve core body is also provided with a rotation-stopping rib to prevent the thermostatic valve core body from rotating. The rotation-stopping rib cooperates with the faucet housing to prevent the thermostatic valve core body from rotating in the faucet housing.

[0012] The technical solution adopted by the utility model to solve the second technical problem is: a thermostatic faucet, including a faucet shell, characterized in that it also includes a thermostatic valve core as mentioned above, and an internal thread corresponding to the external thread is provided on the inner wall of the faucet shell to realize the threaded connection between the connecting part and the faucet shell. When the connecting part is threadedly connected to the faucet shell, the annular shoulder abuts against one end of the faucet shell, and the rotating part is exposed from the faucet shell. The user rotates the rotating part to separate the pressure cover from the faucet shell.

[0013] In order to make the faucet housing cooperate with the anti-rotation rib, preferably, a positioning groove in the axial direction is provided on the inner peripheral wall of the faucet housing. The anti-rotation rib can move in the positioning groove, and the thermostatic valve core body will not rotate in the faucet housing through the cooperation of the anti-rotation rib and the positioning groove, and the positioning groove arranged in the axial direction can guide the thermostatic valve core body to enter and exit the faucet housing in a directional manner through the anti-rotation rib.

[0014] In order to facilitate the user to adjust the water temperature, preferably, the thermostatic valve core body is also provided with a valve stem for adjusting the water temperature, and the valve stem is fixedly connected to the hand wheel through a fastener, so that the rotation of the hand wheel can drive the valve stem to rotate to adjust the water temperature, and the bottom of the hand wheel is located in the inner cavity of the gland, and the hand wheel can rotate around its own axis relative to the gland. The user does not need to remove the hand wheel and then rotate the gland.

[0015] In order to enable the hand wheel to rotate to drive the valve stem, preferably, the outer peripheral wall of the valve stem is provided with an external tooth structure, and the inner peripheral wall of the hand wheel is provided with an internal tooth structure corresponding to the external tooth structure. The rotation of the hand wheel can drive the valve stem to rotate to adjust the water temperature.

[0016] Compared with the prior art, the advantages of the utility model are: the gland is divided into a connecting part and a rotating part by utilizing an annular shoulder, the gland is threadedly connected to the faucet housing through the connecting part, and the rotating part can be rotated manually, so the user can manually rotate the rotating part without the aid of tools to rotate the gland relative to the thermostatic valve core body; at the same time, the gland is movably sleeved on the upper end of the thermostatic valve core body and axially constrained on the thermostatic valve core body by a retaining spring, so that the gland can drive the thermostatic valve core body to be installed into the faucet housing or removed from the faucet housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is an exploded schematic diagram of an embodiment of the utility model;

[0019] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0020] Figure 4 A cross-sectional view of an embodiment of the utility model used in a faucet housing;

[0021] Figure 5 for Figure 4 Schematic diagram of the structure of the faucet shell. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 5 Shown is the best embodiment of the utility model.

[0024] like Figures 1 to 3 As shown, the thermostatic valve core of this embodiment includes a thermostatic valve core body 2 for being installed in a faucet housing 1, a pressure cap 3 is sleeved on the end of the thermostatic valve core body 2, the pressure cap 3 is in the shape of a hollow column, and an annular shoulder 31 is provided on the pressure cap 3, the annular shoulder 31 divides the pressure cap 3 into a connecting portion 32 and a rotating portion 33, the outer peripheral wall of the connecting portion 32 is provided with an external thread for realizing a threaded connection with the faucet housing 1, the rotating portion 33 is annular and forms an inner cavity 34, and an anti-slip tooth for increasing friction is provided on the rotating portion 33, the pressure cap 3 is movably sleeved on the upper end of the thermostatic valve core body 2, and is axially constrained on the thermostatic valve core body 2 by a retaining spring 4 provided on the thermostatic valve core body 2, and a user can manually rotate the rotating portion 33, thereby driving the pressure cap 3 to rotate relative to the thermostatic valve core body 2.

[0025] like Figure 2 and Figure 3 As shown, an annular groove 21 is provided on the thermostatic valve core body 2, and a retaining spring 4 is clamped in the annular groove 21. A gasket 5 is also provided above the bottom surface of the inner cavity 34 of the pressure cover 3. The bottom surface of the inner cavity 34 abuts against the lower surface of the retaining spring 4 through the gasket 5 to prevent the pressure cover 3 from axially moving relative to the thermostatic valve core body 2. The gasket 5 can increase the friction between the inner cavity 34 and the retaining spring 4.

[0026] like Figure 4 and Figure 5 As shown, the thermostatic faucet includes a faucet housing 1, a thermostatic valve core body 2 is installed in the faucet housing 1, and an inner thread corresponding to the outer thread of the connecting portion 32 is provided on the inner wall of the faucet housing 1, so as to realize the threaded connection between the connecting portion 32 and the faucet housing 1. When the connecting portion 32 is threadedly connected to the faucet housing 1, the annular shoulder 31 abuts against one end of the faucet housing 1, and the rotating portion 33 is exposed outside the faucet housing 1. The user rotates the rotating portion 33 to separate the gland 3 from the faucet housing 1. In addition, a valve stem 23 for adjusting the water temperature is also provided on the thermostatic valve core body 2, an outer tooth structure is provided on the outer peripheral wall of the valve stem 23, and an inner tooth structure corresponding to the outer tooth structure is provided on the inner peripheral wall of the hand wheel 7. At the same time, the valve stem 23 is fixedly connected to the hand wheel 7 through a fastener 6, so that the rotation of the hand wheel 7 can drive the valve stem 23 to rotate to adjust the water temperature. The bottom of the hand wheel 7 is located in the inner cavity 34 of the gland 3, and the hand wheel 7 can rotate around its own axis relative to the gland 3.

[0027] In addition, the thermostatic valve core body 2 is also provided with a stop rib 22 for preventing the thermostatic valve core body 2 from rotating, and an axial positioning groove 11 is provided on the inner wall of the faucet housing 1. The stop rib 22 can move in the positioning groove 11. Through the cooperation between the stop rib 22 and the positioning groove 11, the thermostatic valve core body 2 will not rotate in the faucet housing 1, and the positioning groove 11 arranged along the axial direction can guide the thermostatic valve core body 2 to enter and exit the faucet housing 1 in a directional manner through the stop rib 22.

[0028] The working process of this embodiment is as follows: when the thermostatic valve core body 2 needs to be removed from the faucet housing 1, the user manually rotates the rotating part 33 to drive the pressure cover 3 to rotate, so that the external thread on the connecting part 32 rotates along the inner wall of the faucet housing 1, and the pressure cover 3 can rotate relative to the thermostatic valve core body 2 and move axially away from the faucet housing 1, thereby disengaging the pressure cover 3 from the faucet housing 1; at the same time, through the cooperation of the retaining spring 4 and the inner cavity 34, the pressure cover 3 drives the thermostatic valve core body 2 to move axially away from the faucet housing 1. In addition, the anti-rotation rib 22 is installed in the positioning groove 11, and the rotation of the pressure cover 3 will not drive the thermostatic valve core body 2 to rotate. The anti-rotation rib 22 can be moved out of the faucet housing 1 along the positioning groove 11, so that the thermostatic valve core body 2 can be removed from the faucet housing 1 for cleaning or maintenance; if the thermostatic valve core body 2 needs to be installed back, the installation of the thermostatic valve core body 2 can be completed by manually rotating the rotating part 33, thereby realizing the function of convenient disassembly and assembly of the thermostatic valve core.

[0029] If the user needs to clean the thermostatic valve core body 2 separately, the cover on the hand wheel 7 needs to be removed, and then the fastener 6 is unscrewed, so that the valve stem 23 is not connected to the hand wheel 7, and the thermostatic valve core body 2 is naturally removed, and the thermostatic valve core body 2 can be cleaned separately.

Claims

1. A thermostatic valve core that is easy to disassemble and assemble, comprising a thermostatic valve core body (2) for being installed in a faucet housing (1), characterized in that: A pressure cap (3) is sleeved on the end of the thermostatic valve core body (2). The pressure cap (3) is in the shape of a hollow column and is provided with an annular shoulder (31). The annular shoulder (31) divides the pressure cap (3) into a connecting portion (32) and a rotating portion (33). The outer peripheral wall of the connecting portion (32) is provided with an external thread for threaded connection with the faucet housing (1). The rotating portion (33) is annular and forms an inner cavity (34). The pressure cap (3) is movably sleeved on the upper end of the thermostatic valve core body (2) and is axially constrained on the thermostatic valve core body (2) by a retaining spring (4) provided on the thermostatic valve core body (2). A user can manually rotate the rotating portion (33) to drive the pressure cap (3) to rotate relative to the thermostatic valve core body (2).

2. The thermostatic valve core that is easy to disassemble and assemble according to claim 1 is characterized in that: The thermostatic valve core body (2) is provided with an annular groove (21), the retaining spring (4) is retained in the annular groove (21), and the bottom surface of the inner cavity (34) of the pressure cover (3) abuts against the lower surface of the retaining spring (4) to prevent the pressure cover (3) from axially moving relative to the thermostatic valve core body (2).

3. The thermostatic valve core that is easy to disassemble and assemble according to claim 2 is characterized in that: A gasket (5) is also provided above the bottom surface of the inner cavity (34) of the pressure cover (3), and the bottom surface of the inner cavity (34) abuts against the retaining spring (4) through the gasket (5).

4. The thermostatic valve core that is easy to disassemble and assemble according to any one of claims 1 to 3, characterized in that: The rotating part (33) is provided with anti-slip teeth for increasing friction.

5. The thermostatic valve core that is easy to disassemble and assemble according to claim 4 is characterized in that: The thermostatic valve core body (2) is also provided with a rotation-stopping rib (22) for preventing the thermostatic valve core body (2) from rotating.

6. A thermostatic faucet, comprising a faucet housing (1), characterized in that: It also includes a thermostatic valve core as described in any one of the preceding claims 1 to 5, wherein an internal thread corresponding to the external thread is provided on the inner wall of the faucet housing (1) to achieve threaded connection between the connecting portion (32) and the faucet housing (1); when the connecting portion (32) is threadedly connected to the faucet housing (1), the annular shoulder (31) abuts against one end of the faucet housing (1), and the rotating portion (33) is exposed outside the faucet housing (1); a user rotates the rotating portion (33) to separate the pressure cover (3) from the faucet housing (1).

7. The thermostatic faucet according to claim 6, characterized in that: The inner peripheral wall of the faucet housing (1) is provided with a positioning groove (11) in the axial direction.

8. The thermostatic faucet according to claim 7, characterized in that: The thermostatic valve core body (2) is also provided with a valve stem (23) for adjusting the water temperature. The valve stem (23) is fixedly connected to the hand wheel (7) via a fastener (6), so that the rotation of the hand wheel (7) can drive the valve stem (23) to rotate to adjust the water temperature. The bottom of the hand wheel (7) is located in the inner cavity (34) of the gland (3), and the hand wheel (7) can rotate around its own axis relative to the gland (3).

9. The thermostatic faucet according to claim 8, characterized in that: An external tooth structure is provided on the outer peripheral wall of the valve stem (23), and an internal tooth structure corresponding to the external tooth structure is provided on the inner peripheral wall of the hand wheel (7).

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