A valve core and a valve

Abstract

This application relates to a valve core and a valve, which includes a valve stem, a rod sleeve, and a limit assembly for restricting the position of the valve stem in the rod sleeve. The valve stem is provided with a first groove; the limit assembly includes an elastic piece, and the elastic piece includes an elastic piece body and a first bent section provided at one end of the elastic piece body; one end of the elastic piece body away from the first bent section is arranged in the rod sleeve. When the valve core is in the first gear position, at least a part of the bottom surface of the first bent section abuts against the first groove; when the valve core is in the second gear position, the first bent section disengages from the first groove. This application can achieve a first gear water outlet with a relatively small flow rate and a second gear water outlet with the maximum flow rate. Users can select the water output according to actual needs, effectively avoiding the problem that there is no restriction during the opening process, resulting in users easily opening to the maximum flow rate at one time, and effectively avoiding waste of water resources.

Description

Technical Field

[0001] This application relates to the technical field of valves, and particularly to a valve core and a valve. Background Art

[0002] Existing valve cores generally include a valve stem. The valve stem is installed on a rod sleeve. A moving piece cover is installed at the lower part of the rod sleeve. The moving piece cover is connected to the valve stem. A moving piece is connected below the moving piece cover. A static piece is arranged in cooperation below the moving piece. The valve stem controls the movement of the moving piece relative to the static piece through the rod sleeve and the moving piece cover, so as to realize the switching of cold and hot water and the adjustment of the flow rate; when the valve stem is lifted, the moving piece can be driven to move through the moving piece cover. At this time, the amount of water discharged is controlled. When the valve stem is rotated, the moving piece can be driven to rotate through the rod sleeve and the moving piece cover. At this time, the switching of cold and hot water is controlled.

[0003] Currently, the amount of water discharged from a faucet is mainly controlled by the height of manually lifting the faucet handle. The higher the handle is lifted, the greater the amount of water discharged from the faucet. The amount of water discharged is controlled by hand. When the user performs the operation of lifting the faucet handle, it is very easy to lift the valve stem to the limit position through the handle, that is, the position with the largest amount of water discharged. Over time, water resources will be wasted in some usage scenarios.

[0004] Therefore, this application proposes a valve core and a valve. Summary of the Invention

[0005] In order to solve the above technical problems, this application provides a valve core and a valve.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A valve core includes a valve stem, a rod sleeve, and a limiting component for limiting the position of the valve stem in the rod sleeve. The valve stem is provided with a first groove;

[0008] The limiting component includes an elastic piece. The elastic piece includes an elastic piece body and a first bending section provided at one end of the elastic piece body;

[0009] One end of the elastic piece body away from the first bending section is arranged in the rod sleeve. When the valve core is in the first gear position, at least a part of the bottom surface of the first bending section abuts against the first groove;

[0010] When the valve core is in the second gear position, the first bending section disengages from the first groove.

[0011] Preferably, the valve core further includes a second groove and a pin shaft arranged in the second groove. The second groove is arranged below the first groove. When the valve core is in the first gear position, at least a part of the first bending section abuts against the pin shaft.

[0012] Preferably, the second groove also has an opening on the surface of the valve stem, and the two opposite sides of the second groove also have protrusions for limiting the pin shaft in the second groove.

[0013] Preferably, the included angle between the first bent section and the elastic piece body is an acute angle. When the valve core is in the first gear position, the first bent section elastically abuts against the first groove or the pin shaft.

[0014] Preferably, when the valve core is in the closed state, there is a bent portion between the elastic piece body and the first bent section;

[0015] The first edge section of the first groove or the pin shaft is at the bent portion.

[0016] Preferably, one end of the elastic piece is detachably connected to the rod sleeve. The end face of the rod sleeve has a socket groove, and the socket groove communicates with a limit groove located on the side surface of the rod sleeve;

[0017] The elastic piece includes a socket portion, and the socket portion includes a second bent section that is clamped with the limit groove.

[0018] Preferably, the socket portion includes two notches formed in the elastic piece, and an elastic deformation portion is formed between the two notches. The second bent section is located in the elastic deformation portion;

[0019] The rod sleeve is provided with a relief notch. During the clamping process of the second bent section, the elastic deformation portion deforms towards the relief notch and enters the relief notch.

[0020] Preferably, one end of the first bent section away from the elastic piece body has a third bent section;

[0021] When the valve core is in the second gear position, the third bent section is used to prevent the first bent section from extending into the first groove;

[0022] When the valve stem is in the reset process, the third bent section is used to guide the reset process.

[0023] Preferably, the connection between the first bent section and the third bent section has an arc chamfer.

[0024] A valve includes the aforementioned valve core.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] The spool provided by the embodiment of the present invention positions the end of the elastic sheet body away from the first bending section in the rod sleeve, and at least a part of the bottom surface of the first bending section abuts against the first groove. Due to the elastic effect, the elastic sheet positions the valve rod at the middle position of the rod sleeve, thereby obtaining a first gear water outlet with a smaller flow rate. When the first bending section of the elastic sheet disengages from the first groove, the valve rod is at the maximum opening position of the rod sleeve, thereby obtaining a second gear water output with a larger flow rate. The user can select the water output according to actual needs, effectively avoiding the problem that there is no restriction during the opening process, resulting in the user easily opening to the maximum flow rate at one time, and effectively avoiding water resource waste. In addition, the elastic sheet of the present application is inserted into the rod sleeve and is not an integral structure, and the pin shaft is clamped in the valve rod and is not an integral structure. In some usage scenarios, when there is no need for stepped water output but a large flow rate of water output at one time, the elastic sheet and the pin shaft can be not installed, and there is no restriction during the opening process, and the maximum water output can be easily opened at one time.

[0027] At the same time, the limiting component of the embodiment of the present invention can realize the positioning of the valve rod at different positions only through a simple elastic sheet and a groove provided on the valve rod. Therefore, for the spool of the existing structure, only a few simple grooves need to be opened, and a simple elastic sheet is added, and the transformation of the existing spool can be completed. The transformation and manufacturing costs are low, and it is simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings illustrate exemplary embodiments of the present application and, together with the description thereof, are used to explain the principles of the present application. These drawings are included to provide a further understanding of the present application, and the drawings are included in this specification and form a part of this specification.

[0029] Figure 1 is a schematic structural diagram of the present application;

[0030] Figure 2 is a cross-sectional view of the present application;

[0031] Figure 3 is Figure 2 the enlarged view at A in

[0032] Figure 4 is a schematic diagram of the cooperation between the valve rod and the pin shaft in the present application;

[0033] Figure 5 is a schematic structural diagram of the valve rod in the present application;

[0034] Figure 6 is Figure 5 the enlarged view at B in

[0035] Figure 7 is a schematic structural diagram of the elastic sheet in the present application;

[0036] Figure 8It is a schematic diagram of the rod sleeve structure in this application;

[0037] Figure 9 It is a schematic diagram of another angle structure of the rod sleeve in this application.

[0038] Markings in the figure: 1 is the valve stem, 2 is the rod sleeve, 3 is the first groove, 4 is the elastic piece body, 5 is the first bent section, 6 is the second groove, 7 is the pin shaft, 8 is the protrusion, 9 is the bending place, 10 is the first edge section, 11 is the insertion groove, 12 is the limiting groove, 13 is the second bent section, 14 is the notch, 15 is the elastic deformation part, 16 is the relief notch, 17 is the third bent section, 18 is the arc chamfer, 19 is the moving piece cover, 20 is the moving piece, 21 is the static piece, 22 is the bottom shell, 23 is the outer shell. Specific embodiments

[0039] The following further elaborates on this application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant content and do not limit this application. Additionally, it should be noted that for the convenience of description, only parts related to this application are shown in the drawings.

[0040] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in conjunction with the embodiments.

[0041] As Figures 1 to 9 shown, a valve core includes a valve stem 1, a rod sleeve 2, and a limiting component for restricting the position of the valve stem 1 in the rod sleeve 2. The valve stem 1 is provided with a first groove 3;

[0042] The limiting component includes an elastic piece, and the elastic piece includes an elastic piece body 4 and a first bent section 5 provided at one end of the elastic piece body 4;

[0043] One end of the elastic piece body 4 away from the first bent section 5 is arranged in the rod sleeve 2. When the valve core is in the first gear position, at least a part of the bottom surface of the first bent section 5 abuts against the first groove 3. Further, the first bent section 5 cooperates with the bottom surface of the first groove 3 to provide a gear limit for the opening of the valve core, realizing the function of multi-gear opening. Specifically, the first bent section 5 can directly cooperate with the self-existing structure of the bottom surface of the first groove 3, such as a self-existing limiting protrusion part, or it can also cooperate with a limiting structure installed externally on the bottom surface, as long as it can provide a gear limit for the opening of the valve core;

[0044] When the valve core is in the second gear position, the first bent section 5 disengages from the first groove 3.

[0045] The valve core further includes a moving piece cover 19, a moving piece 20, a static piece 21, a bottom shell 22, and an outer shell 23. The aforementioned components are all conventional components in the art. The cooperation and working process of each component are the prior art in the art and will not be elaborated herein.

[0046] Further, the valve core further includes a second groove 6 and a pin shaft 7 disposed in the second groove 6. The second groove 6 is provided at the lower part of the first groove 3. When the valve core is in the first gear position, at least a part of the first bending section 5 abuts against the pin shaft 7. With such a setting, the first bending section 5 and the pin shaft 7 cooperate to provide a gear position limit for the opening of the valve core, realizing the function of stepped opening. To adjust the magnitude of the opening force, the relative installation position of the pin shaft 7 and the first bending section 5 can be adjusted, or the pin shaft 7 can be set to a rotatable or non-rotatable form.

[0047] Further, the second groove 6 also has an opening on the surface of the valve stem 1. The two opposite side surfaces of the second groove 6 also have protrusions 8. The protrusions 8 are used to limit the pin shaft 7 in the second groove 6. With such a setting, the cooperation between the pin shaft 7 and the protrusions 8 facilitates the installation and fixation of the pin shaft 7 in the second groove 6. At the same time, the pin shaft 7 and the valve stem 1 are not of an integral structure. In some use scenarios, when stepped water outlet is not required but a large flow rate of water outlet at one time is needed, the pin shaft 7 can be not installed, and then there is no limit in the opening process, and it can be easily opened to the maximum water output at one time. Specifically, the protrusions 8 are arc-shaped, and the protruding height range of the protrusions 8 on the side surface of the second groove 6 is 0.05 mm to 0.5 mm, and the preferred heights are 0.1 mm, 0.2 mm, 0.3 mm. Here, the specific setting is 0.2 mm.

[0048] Further, the included angle between the first bending section 5 and the elastic piece body 4 is an acute angle. When the valve core is in the first gear position, the first bending section 5 elastically abuts against the first groove 3 or the pin shaft 7. The setting of the acute angle enables the first bending section 5 to effectively provide a gear position limit for the opening process of the valve core. When the valve core is in the closed state, there is a bending part 9 between the elastic piece body 4 and the first bending section 5; the first edge section 10 of the first groove 3 or the pin shaft 7 is located at the bending part 9.

[0049] In an embodiment of the present application, as Figure 2 、 3As shown in FIGS. 7, 8, and 9, one end of the elastic piece is detachably connected to the rod sleeve 2. The end face of the rod sleeve 2 is provided with a socket groove 11, and the socket groove 11 communicates with a limit groove 12 located on the side surface of the rod sleeve 2. The elastic piece includes a socket portion, and the socket portion includes a second bending section 13, and the second bending section 13 is clamped with the limit groove 12. With such a setting, the cooperation between the socket groove 11 and the second bending section 13 facilitates the connection and fixation between the elastic piece and the rod sleeve 2. At the same time, the elastic piece and the rod sleeve 2 are not of an integral structure. In some use scenarios, when there is no need for water output in stages but a large one-time water output is required, the elastic piece can be not installed, and thus there is no limit during the opening process, and the maximum water output can be easily opened at one time.

[0050] In an embodiment of the present application, as Figures 7 to 9 shown, the socket portion includes two notches 14 formed in the elastic piece. An elastic deformation portion 15 is formed between the two notches 14, and the second bending section 13 is located in the elastic deformation portion 15. The setting of the notches 14 makes the deformation and reset processes of the elastic deformation portion 15 smoother and more effective.

[0051] The rod sleeve 2 is provided with a relief notch 16. During the clamping process of the second bending section 13, the elastic deformation portion 15 deforms towards the relief notch 16 and enters the relief notch 16. With such a setting, the elastic deformation portion 15 will generate displacement during the elastic deformation process, and the relief notch 16 provides an adaptation space for this displacement, ensuring the smooth progress of the elastic deformation process of the elastic deformation portion 15, and further ensuring the smooth progress of the clamping process between the second bending section 13 and the limit groove 12.

[0052] In an embodiment of the present application, as Figures 1 to 3 shown in FIGS. 6 and 7, one end of the first bending section 5 away from the elastic piece body 4 has a third bending section 17. When the valve core is in the second gear position, the third bending section 17 is used to prevent the first bending section 5 from extending into the first groove 3, ensuring that without sufficient external force, the first bending section 5 is prevented from extending into the first groove 3, and further preventing the valve core from disengaging from the second gear position, resulting in a decrease in flow rate. When the valve rod 1 is in the reset process, the third bending section 17 is used to guide the reset process. The third bending section 17 is inclined. Specifically, the distance between the end of the third bending section 17 close to the first bending section 5 and the elastic piece body 4 is less than the distance between the end of the third bending section 17 far from the first bending section 5 and the elastic piece body 4. The inclined setting of the third bending section 17 is beneficial to its guiding of the reset process, making the reset process smoother.

[0053] Further, the connection between the first bent section 5 and the third bent section 17 has an arc chamfer 18. With this arrangement, the arc chamfer 18 makes the contact change during the reset process smoother, ensuring the smooth progress of the reset process. For example, during the reset process, the third bent section 17 contacts and guides the pin shaft 7. Gradually, the arc chamfer 18 contacts the pin shaft 7 and smoothly moves on the pin shaft 7, ensuring the smooth progress of the reset process.

[0054] A valve, specifically a cold and hot water mixing valve, includes the aforementioned valve core.

[0055] In the description of this specification, the description with reference to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present application and are not intended to limit the scope of the present application. For those skilled in the art, other changes or modifications can be made on the basis of the above disclosure, and these changes or modifications are still within the scope of the present application.

Claims

1. A valve core, characterized in that, Comprising a valve stem (1), a stem sleeve (2) and a limiting component for limiting the position of the valve stem (1) in the stem sleeve (2), the valve stem (1) is provided with a first groove (3); The limiting component includes an elastic sheet, and the elastic sheet includes an elastic sheet body (4) and a first bending section (5) provided at one end of the elastic sheet body (4); One end of the elastic sheet body (4) away from the first bending section (5) is arranged on the stem sleeve (2). When the valve core is in the first gear position, at least a part of the bottom surface of the first bending section (5) abuts against the first groove (3); When the valve core is in the second gear position, the first bending section (5) disengages from the first groove (3); The valve core further includes a second groove (6) and a pin shaft (7) arranged in the second groove (6). The second groove (6) is arranged below the first groove (3). When the valve core is in the first gear position, at least a part of the first bending section (5) abuts against the pin shaft (7); The second groove (6) also has an opening on the surface of the valve stem (1), and two opposite side surfaces of the second groove (6) also have protrusions (8), and the protrusions (8) are used to limit the pin shaft (7) in the second groove (6); The included angle between the first bending section (5) and the elastic sheet body (4) is an acute angle.

2. A valve core according to claim 1, characterized in that, When the valve core is in the closed state, there is a bending part (9) between the elastic sheet body (4) and the first bending section (5); The first edge section (10) of the first groove (3) or the pin shaft (7) is located at the bending part (9).

3. A spool valve according to claim 1, characterized in that, One end of the elastic sheet is detachably connected to the stem sleeve (2). The end surface of the stem sleeve (2) has a plug-in groove (11), and the plug-in groove (11) communicates with a limiting groove (12) located on the side surface of the stem sleeve (2); The elastic sheet includes a plug-in part, and the plug-in part includes a second bending section (13), and the second bending section (13) is clamped with the limiting groove (12).

4. A spool valve according to claim 3, characterized in that, The plug-in part includes two notches (14) opened on the elastic sheet, and an elastic deformation part (15) is formed between the two notches (14), and the second bending section (13) is located at the elastic deformation part (15); The stem sleeve (2) is provided with a relief notch (16). During the clamping process of the second bending section (13), the elastic deformation part (15) deforms towards the relief notch (16) and enters the relief notch (16).

5. A valve core according to any one of claims 1 to 4, characterized in that One end of the first bending section (5) away from the elastic sheet body (4) has a third bending section (17); When the valve core is in the second gear position, the third bending section (17) is used to prevent the first bending section (5) from extending into the first groove (3); When the valve stem (1) is in the reset process, the third bending section (17) is used to guide the reset process.

6. A spool valve according to claim 5, characterized in that, The connection part between the first bending section (5) and the third bending section (17) has an arc chamfer (18).

7. A valve, characterized in that, Comprising the valve core according to any one of claims 1 to 6.

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