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 sleeved mode, a connecting rod is arranged on the periphery of the fixing rod in a sleeved mode, the length-adjustable valve rod further comprises an adjusting ring, the adjusting ring is also arranged in the connecting rod, and the adjusting ring is connected with the valve element. 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, the adjusting ring rotates to 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 utility model relates to a valve rod and a valve core with adjustable length, and is particularly applicable to products of concealed valves. Background Art

[0002] At present, when installing concealed valves in the market, due to the problem that the depth of the embedded box from the wall surface is either deep or shallow during installation, the connecting rod on the valve core is designed to be relatively long. Finally, when installing the panel, the protruding 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 button control after installation. Seriously, it will cause the valve core to be unusable. Moreover, the valve core has relatively high requirements for installation accuracy, and the valve rod is also prone to skew during cutting, which also affects the coaxiality. If the wall surface is too deep, the general valve core cannot cooperate with the installation panel due to the too short control length of the valve rod, resulting in the unusability of the valve core. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a valve rod and a valve core with adjustable length.

[0004] The utility model is realized through the following technical solutions:

[0005] A valve rod with adjustable length includes a valve rod assembly capable of controlling the operation of the valve core. A fixed rod is sleeved on the outer periphery of the valve rod assembly, and a connecting rod is sleeved on the outer periphery of the fixed rod. An adjusting ring is also arranged inside the connecting rod. The adjusting ring can rotate relative to the fixed rod. An axial guiding groove is formed by inward depression on the outer periphery of the fixed rod, and a guiding block is formed by protrusion on the inner periphery of the connecting rod. The guiding block can be connected with the guiding groove in a matching manner. An internal thread is arranged on the inner peripheral wall of the guiding block, and an external thread capable of being matched with the internal thread is arranged on the outer periphery of the adjusting ring. The rotation of the adjusting ring can drive the connecting rod to axially move relative to the fixed rod.

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

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

[0008] In an embodiment of the utility model, upwardly protruding connecting pieces are annularly arranged on the upper end surface of the fixed rod. A connecting hole is arranged on the inner periphery of the adjusting ring, and the connecting hole is located on the outer periphery of the connecting piece. A buckle protruding outward is arranged on the upper end of the connecting piece, and the buckle can abut against and cooperate with the side wall of the adjusting ring around the connecting hole, so as to connect the adjusting ring and the fixed rod together.

[0009] In an embodiment of the present utility model, a guiding inclined surface is provided on the upper end surface 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 inclined surface to deform the connecting piece inwards, facilitating the connection ring to be sleeved on the outer periphery of the connecting piece.

[0010] In an embodiment of the present utility model, a groove is provided on the upper end surface of the adjusting ring located around the connecting hole, and the groove can drive the adjusting ring to rotate relative to the fixed rod after cooperating with a tool.

[0011] In an embodiment of the present utility model, at least two guiding grooves are annularly arranged on the outer periphery of the fixed rod, at least two guiding blocks are annularly arranged on the inner periphery of the connecting rod, and the number of the guiding grooves is adapted to the number of the guiding blocks.

[0012] The present utility model also discloses another technical feature:

[0013] A valve core includes an adjustable-length valve rod as described above.

[0014] In an embodiment of the present utility model, a body and a valve rod assembly which are matched with each other are further included, and the connecting rod can drive the valve rod assembly to rotate and / or axially move relative to the body through the fixed rod.

[0015] In an embodiment of the present utility model, the valve rod assembly includes a button and a knob, the knob is sleeved on the outer periphery of the button, the upper end surface of the button can be in butt joint and cooperation with the upper end of the fixed rod, 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.

[0016] The adjustable-length valve rod and valve core of the present utility model have the following beneficial effects: Through the connection method of this structure, the total length of the control valve rod of the control valve core is adjusted and controlled, so as to adapt to the installation requirements of different wall depths, eliminating the problem that the valve rod of the embedded box needs to be cut during installation, making the installation simpler; moreover, this structure is applicable to both the pressing switch valve core and the pressing switch rotary flow-adjusting valve core, with wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present utility model, the accompanying drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other accompanying drawings based on these drawings without creative efforts.

[0018] Figure 1 is a perspective view of the present utility model.

[0019] Figure 2 is a sectional view of the present utility model.

[0020] Figure 3 This is a partial cross-sectional view of the present utility model.

[0021] Figure 4 This is a schematic diagram of the connecting rod in the present utility model.

[0022] Figure 5 This is a schematic diagram of the adjusting ring in the present utility model.

[0023] Figure 6 This is a schematic diagram of the mating of the body in the present utility model. Specific Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0029] Referring to the accompanying drawings of the specification, a valve rod with adjustable length includes a valve rod assembly capable of controlling the operation of a valve core 100. A fixed rod 10 is sleeved on the outer periphery of the valve rod assembly, and a connecting rod 20 is sleeved on the outer periphery of the fixed rod. An adjusting ring 30 is further included, and the adjusting ring is also arranged inside the connecting rod. The adjusting ring can rotate relative to the fixed rod. An axial guiding groove 11 is formed by inward depression on the outer periphery of the fixed rod, and a guiding block 21 is formed by protrusion on the inner periphery of the connecting rod. The guiding block can be connected in cooperation with the guiding groove, and at this time, the connecting rod can axially move relative to the fixed rod; an internal thread 22 is arranged on the inner peripheral wall of the guiding block, and an external thread 31 capable of cooperating with the internal thread is arranged on the outer periphery of the adjusting ring. The rotation of the adjusting ring can drive the connecting rod to axially move relative to the fixed rod. Here, the axial direction can be consistent with the axial direction of the valve core, and both the connecting rod and the fixed rod can use tubular components.

[0030] Further, because the connecting rod and the adjusting ring adopt a threaded connection method, the connecting rod can axially move 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 a button to move, realizing the switching of the on / off water states of the valve core.

[0031] Still further, the adjusting ring can abut against the upper end face of the fixed rod, and the axial movement of the adjusting ring can drive the fixed rod to also axially move, thereby controlling the operation of the valve core. By pressing the connecting rod, the fixed rod is driven to axially move through the adjusting ring, so as to press the button of the valve core.

[0032] Preferably, the upper end surface of the fixed rod is annularly provided with upwardly protruding connecting pieces 12. A connecting hole 32 is provided on the inner circumference of the adjusting ring. The connecting hole is located on the outer circumference of the connecting piece. The upper end of the connecting piece is provided with a buckle 13 protruding outward. The buckle can be in abutting cooperation with the side wall of the adjusting ring on the periphery of the connecting hole, so as to connect the adjusting ring and the fixed rod together, which can prevent the connecting rod, the adjusting ring and the fixed rod (valve core) from separating.

[0033] In order to conveniently buckle the adjusting ring on the outer circumference of the connecting piece, the upper end surface of the buckle is provided with a guiding inclined surface 14. The connecting piece is an elastic piece. The side wall of the adjusting ring on the periphery of the connecting hole can cooperate with the guiding inclined surface to deform the connecting piece inwards, facilitating the connecting ring to be sleeved on the outer circumference 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 on the periphery of the connecting hole. The groove can cooperate with a tool to drive the adjusting ring to rotate relative to the fixed rod. For example, pliers are inserted into the groove, and then the adjusting ring is driven to rotate, so as to realize the telescopic movement of the connecting rod relative to the body, and realize the adjustment of the length of the control end of the valve rod.

[0035] In one use, at least two guiding grooves are annularly arranged on the outer circumference of the fixed rod, and at least two guiding blocks are annularly arranged on the inner circumference of the connecting rod. The number of the guiding grooves and the guiding blocks is adapted to each other, which can ensure the coaxiality of the connecting rod and the fixed rod.

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

[0037] A valve core 100 includes an adjustable-length valve rod as described above.

[0038] Preferably, it further includes a cooperating body 40 and a valve rod assembly. The connecting rod can drive the valve rod assembly to rotate and / or axially move relative to the body through the fixed rod.

[0039] Furthermore, the valve rod assembly includes a button 51 and a knob 52. The knob is sleeved on the outer circumference of the button, which is the same as the existing setting. The upper end surface of the button can be in abutting cooperation with the upper end of the fixed rod. The axial movement of the fixed rod can drive the button to control the opening and closing of the water of the valve core. The fixed rod is sleeved on the outer circumference of the knob. The fixed rod can rotate synchronously with the knob relative to the body. In one embodiment, a keyway connection method can be adopted between the fixed rod and the knob to realize synchronous rotation, which can realize the adjustment of the flow rate.

[0040] The utility model realizes the telescopic function of the connecting rod through the rotation of the adjusting ring. The connecting rod is connected to the mounting panel at the control end of the valve core, so as to adjust the length of the whole connecting structure, and thus adapt to the installation of valve cores with different wall depths. A fixing rod is sleeved on the valve rod assembly, and the fixing rod is connected to the valve core. An outer sleeve of the fixing rod is sleeved with a connecting rod, and the fixing rod and the connecting rod are connected by threads, and a guiding groove is made in the middle. An adjusting ring is designed above the fixing rod, and the axial movement of the connecting rod is realized by the rotation of the adjusting ring, so as to achieve the purpose of adjusting the overall total length. Through this connection method, the problem of cutting the valve rod during installation can be avoided, and the installation is simplified. At the same time, when the connecting rod rotates, the connecting rod, the adjusting ring and the fixing rod can rotate synchronously. This structure can be used for the push-button switch valve core and the push-button switch rotary flow-adjusting valve core.

[0041] The above description shows and describes the preferred embodiments of the present utility model. As mentioned above, it should be understood that the present utility model 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 changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

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 length-adjustable valve stem 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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