Length-adjustable valve rod and valve element

Abstract

The valve rod comprises a valve rod assembly capable of controlling the valve element to work, a fixing rod is arranged on the periphery of the valve rod assembly in a sleeving mode, a connecting rod is arranged on the periphery of the fixing rod in a sleeving mode, the valve rod assembly further comprises an adjusting ring, and the adjusting ring is also arranged in the connecting rod. The adjusting ring can rotate relative to the fixing rod, the outer circumference of the fixing rod is recessed inwards to form an axial guide groove, the inner circumference of the connecting rod protrudes to form a guide block, and the guide block can be connected with the guide groove in a matched mode. An inner thread is arranged on the inner circumferential wall of the guide block, an outer thread capable of being matched with the inner thread is arranged on the periphery of the adjusting ring, rotation of the adjusting ring can drive the connecting rod to axially move relative to the fixing rod, and the valve element comprises the valve rod. And the control length of the whole valve rod is adjusted, so that the mounting requirements of different wall depths are met.

Description

Technical Field

[0001] The invention relates to a valve stem and a valve core with adjustable length, which are particularly suitable for concealed valve products. Background Art

[0002] At present, when installing concealed valves in the market, the depth of the embedded box from the wall may be too deep or too shallow, which leads to the design of the connecting rod on the valve core being relatively long. Finally, when installing the panel, the extended part of the connecting rod is cut off by cutting. During the cutting process, it is easy to cut too long or too short, resulting in problems with the button control after installation. In severe cases, the valve core cannot be used. In addition, the valve core has high requirements for installation accuracy, and it is easy to cause the valve stem to be skewed during cutting, which also affects the coaxiality. If the wall is too deep, the general valve core cannot be matched with the installation panel because the control length of the valve stem is too short, making the valve core unusable. Summary of the invention

[0003] In order to solve the above technical problems, the object of the present invention is to provide a valve stem and a valve core with adjustable length.

[0004] The present invention is achieved through the following technical solutions:

[0005] A valve stem with adjustable length includes a valve stem assembly that can control the operation of a valve core, wherein a fixing rod is sleeved on the outer periphery of the valve stem assembly, a connecting rod is sleeved on the outer periphery of the fixing rod, and an adjusting ring is also arranged inside the connecting rod. The adjusting ring can rotate relative to the fixing rod, the outer periphery of the fixing rod is recessed inward to form an axial guide groove, the inner periphery of the connecting rod is raised to form a guide block, and the guide block can be connected with the guide groove; the inner peripheral wall of the guide block is provided with an internal thread, and the outer periphery of the adjusting ring is provided with an external thread that can cooperate with the internal thread, and the rotation of the adjusting ring can drive the connecting rod to move axially relative to the fixing rod.

[0006] In the embodiment of the present invention, the connecting rod can move axially synchronously with the adjusting ring, and the axial movement of the adjusting ring can control the operation of the valve core.

[0007] In the embodiment of the present invention, the adjusting ring can abut against the upper end surface of the fixing rod, and the axial movement of the adjusting ring can drive the fixing rod to also move axially, thereby controlling the operation of the valve core.

[0008] In the embodiment of the present invention, the upper end surface of the fixing rod is provided with a connecting piece protruding upward in a ring shape, the inner periphery of the adjusting ring is provided with a connecting hole, the connecting hole is located at the outer periphery of the connecting piece, and the upper end of the connecting piece is provided with a buckle protruding outward, and the buckle can abut and cooperate with the side wall of the adjusting ring on the side of the connecting hole to connect the adjusting ring to the fixing rod together.

[0009] In an embodiment of the present invention, a guiding slope is provided on the upper end face of the buckle, the connecting piece is an elastic piece, and the side wall of the adjusting ring around the connecting hole can cooperate with the guiding slope to deform the connecting piece inward, so that the connecting ring can be sleeved on the outer periphery of the connecting piece.

[0010] In the embodiment of the present invention, a groove is provided on the upper end surface of the adjustment ring located at the peripheral side of the connection hole, and the groove can drive the adjustment ring to rotate relative to the fixing rod after cooperating with the tool.

[0011] In the embodiment of the present invention, at least two guide grooves are annularly arranged on the outer circumference of the fixing rod, and at least two guide blocks are annularly arranged on the inner circumference of the connecting rod, and the number of the guide grooves matches that of the guide blocks.

[0012] The present invention also discloses another technical feature:

[0013] A valve core comprises the above-mentioned valve stem with adjustable length.

[0014] The embodiment of the present invention further comprises a matching body and a valve stem assembly, wherein the connecting rod can drive the valve stem assembly to rotate and / or move axially relative to the body via the fixing rod.

[0015] In an embodiment of the present invention, the valve stem assembly includes a button and a knob, the knob is sleeved on the outer circumference of the button, the upper end surface of the button can abut and cooperate with the upper end of the fixed rod, the fixed rod is sleeved on the outer circumference of the knob, and the fixed rod can rotate synchronously with the knob relative to the body.

[0016] The valve stem and valve core with adjustable length of the present invention have the following beneficial effects: through the connection method of this structure, the total control length of the working valve stem of the control valve core can be adjusted to adapt to the installation requirements of different wall depths, eliminating the problem of cutting the pre-embedded box valve stem during installation, making installation easier; and the structure is universal for both push-switch valve cores and push-switch rotary flow control valve cores, and has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a perspective view of the present invention.

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] Figure 3It is a partial cross-sectional view of the present invention.

[0021] Figure 4 It is a schematic diagram of the connecting rod in the present invention.

[0022] Figure 5 Schematic diagram of the adjustment ring in the present invention.

[0023] Figure 6 It is a schematic diagram of the coordination of the main body in the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] Referring to the drawings of the specification, a valve stem with adjustable length includes a valve stem assembly that can control the operation of a valve core 100, wherein a fixed rod 10 is sleeved on the outer periphery of the valve stem assembly, a connecting rod 20 is sleeved on the outer periphery of the fixed rod, and an adjusting ring 30 is also provided, wherein the adjusting ring is also provided inside the connecting rod, and the adjusting ring can rotate relative to the fixed rod, and an axial guide groove 11 is formed by an inward depression on the outer periphery of the fixed rod, and a guide block 21 is formed by a protrusion on the inner periphery of the connecting rod, and the guide block can be connected with the guide groove, and the connecting rod can move axially relative to the fixed rod; an internal thread 22 is provided on the inner peripheral wall of the guide block, and an external thread 31 that can cooperate with the internal thread is provided on the outer periphery of the adjusting ring, and the rotation of the adjusting ring can drive the connecting rod to move axially relative to the fixed rod, and the axial direction here can be consistent with the axial direction of the valve core, and tubular components can be used for both the connecting rod and the fixed rod.

[0030] Furthermore, because the connecting rod and the adjusting ring are connected by threads, the connecting rod can move axially synchronously with the adjusting ring, and the axial movement of the adjusting ring can control the operation of the valve core. In one embodiment, the movement of the adjusting ring can drive the button to move, thereby realizing the switching of the valve core between the on and off states of the water.

[0031] Furthermore, the adjusting ring can abut against the upper end surface of the fixing rod, and the axial movement of the adjusting ring can drive the fixing rod to move axially, thereby controlling the operation of the valve core, and by pressing the connecting rod, the fixing rod is driven to move axially through the adjusting ring, thereby pressing the button of the valve core.

[0032] Preferably, the upper end surface of the fixing rod is provided with an upwardly protruding connecting piece 12 in an annular manner, the inner circumference of the adjusting ring is provided with a connecting hole 32, the connecting hole is located at the outer circumference of the connecting piece, and the upper end of the connecting piece is provided with a buckle 13 protruding outward, and the buckle can abut and cooperate with the side wall of the adjusting ring on the side around the connecting hole to connect the adjusting ring and the fixing rod together, thereby preventing the connecting rod, the adjusting ring and the fixing rod (valve core) from separating.

[0033] In order to facilitate the buckling of the adjustment ring on the periphery of the connecting piece, a guiding slope 14 is provided on the upper end face of the buckle. The connecting piece is an elastic piece. The side wall of the adjustment ring on the side around the connecting hole can cooperate with the guiding slope to deform the connecting piece inward, making it easier for the connecting ring to be sleeved on the periphery of the connecting piece.

[0034] In order to facilitate the operation of the adjusting ring, a groove 33 is provided on the upper end surface of the adjusting ring located on the side of the connecting hole. The groove can drive the adjusting ring to rotate relative to the fixed rod after cooperating with a tool. For example, pliers are inserted into the groove, and then the adjusting ring is driven to rotate, thereby realizing the extension and retraction of the connecting rod relative to the body, and realizing the adjustment of the length of the control end of the valve stem.

[0035] In one use, at least two guide grooves are arranged in an annular pattern around the outer circumference of the fixed rod, and at least two guide blocks are arranged in an annular pattern around the inner circumference of the connecting rod. The number of the guide grooves matches that of the guide blocks, so that the connecting rod and the fixed rod can ensure coaxiality.

[0036] The present invention also discloses another technical feature:

[0037] A valve core 100 comprises the above-mentioned valve stem with adjustable length.

[0038] Preferably, it also includes a matching body 40 and a valve stem assembly, and the connecting rod can drive the valve stem assembly to rotate and / or move axially relative to the body via the fixing rod.

[0039] Furthermore, the valve stem assembly includes a button 51 and a knob 52, and the knob is sleeved on the outer periphery of the button, which is consistent with the existing setting. The upper end surface of the button can abut and cooperate with the upper end of the fixed rod, so that the axial movement of the fixed rod can drive the button to control the switching water of the valve core. The fixed rod is sleeved on the outer periphery of the knob, and the fixed rod can rotate synchronously with the knob relative to the body. In one embodiment, a keyway connection method can be used between the fixed rod and the knob to achieve synchronous rotation, so that the flow rate can be adjusted.

[0040] The present invention realizes the retractability of the connecting rod by rotating the adjusting ring, and the connecting rod is connected to the installation panel of the valve core control end, so as to achieve the purpose of adjusting the length of the entire connecting structure, so as to adapt to the installation of valve cores of different wall depths. A fixed rod is sleeved on the valve stem assembly, and the fixed rod is connected to the valve core. The outer ring of the fixed rod is sleeved with the connecting rod. The fixed rod and the connecting rod are threadedly connected, and a guide groove is provided in the middle. An adjusting ring is designed above the fixed rod, and the axial movement of the connecting rod is achieved by rotating the adjusting ring, so as to achieve the purpose of adjusting the overall length. Through this connection method, the problem of cutting the valve stem during installation can be avoided, which simplifies the installation. At the same time, when the connecting rod rotates, the connecting rod, the adjusting ring, and the fixed rod can rotate synchronously. This structure can be used on a push-switch valve core and a push-switch rotating flow regulating valve core.

[0041] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A valve stem with adjustable length, comprising a valve stem assembly capable of controlling the operation of a valve core, wherein a fixing rod is sleeved on the outer periphery of the valve stem assembly, characterized in that: The outer sleeve of the fixed rod is provided with a connecting rod and also includes an adjusting ring. The adjusting ring is also arranged inside the connecting rod. The adjusting ring can rotate relative to the fixed rod. The outer circumference of the fixed rod is recessed inward to form an axial guide groove. The inner circumference of the connecting rod is raised to form a guide block. The guide block can be connected with the guide groove. The inner circumferential wall of the guide block is provided with an internal thread. The outer circumference of the adjusting ring is provided with an external thread that can cooperate with the internal thread. The rotation of the adjusting ring can drive the connecting rod to move axially relative to the fixed rod.

2. The length-adjustable valve stem according to claim 1, characterized in that: The connecting rod can move axially synchronously with the adjusting ring, and the axial movement of the adjusting ring can control the operation of the valve core.

3. The length-adjustable valve stem according to claim 2, characterized in that: The adjusting ring can abut against the upper end surface of the fixing rod, and the axial movement of the adjusting ring can drive the fixing rod to also move axially, thereby controlling the operation of the valve core.

4. The length-adjustable valve stem according to claim 3, characterized in that: The upper end surface of the fixing rod is provided with a connecting piece protruding upward in an annular manner, the inner circumference of the adjusting ring is provided with a connecting hole, the connecting hole is located at the outer circumference of the connecting piece, and the upper end of the connecting piece is provided with a buckle protruding outward, and the buckle can abut and cooperate with the side wall of the adjusting ring on the side around the connecting hole to connect the adjusting ring to the fixing rod together.

5. The length-adjustable valve stem according to claim 4, characterized in that: The upper end surface of the buckle is provided with a guiding inclined surface, the connecting piece is an elastic piece, and the side wall of the adjusting ring around the connecting hole can cooperate with the guiding inclined surface to make the connecting piece deform inwardly, so that the connecting ring is conveniently sleeved on the outer periphery of the connecting piece.

6. The valve stem with adjustable length according to claim 5, characterized in that: A groove is arranged on the upper end surface of the adjusting ring located at the peripheral side of the connecting hole, and the groove can drive the adjusting ring to rotate relative to the fixing rod after being matched with a tool.

7. A valve stem with adjustable length according to any one of claims 1 to 6, characterized in that: At least two guide grooves are arranged in an annular pattern on the outer circumference of the fixing rod, and at least two guide blocks are arranged in an annular pattern on the inner circumference of the connecting rod. The number of the guide grooves matches that of the guide blocks.

8. A valve core, characterized in that: It comprises a valve stem with adjustable length as described in any one of claims 1-7.

9. A valve core according to claim 8, characterized in that: It also includes a matching body and valve stem assembly, and the connecting rod can drive the valve stem assembly to rotate and / or move axially relative to the body via the fixing rod.

10. A valve core according to claim 9, characterized in that: The valve stem assembly includes a button and a knob, the knob is sleeved on the outer circumference of the button, the upper end surface of the button can abut and cooperate with the upper end of the fixed rod, the fixed rod is sleeved on the outer circumference of the knob, and the fixed rod can rotate synchronously with the knob relative to the body.

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