A valve core

Abstract

The application relates to a flow valve, and discloses a valve core which comprises a handle provided with a threaded section and a light rod section arranged in sequence along an axial direction; a handle sleeve provided with a threaded cooperation section and a light rod cooperation section arranged in sequence along an axial direction; wherein the outer circumferential surface of the light rod section is provided with a first sealing device, so that the first sealing device is sealingly connected with the light rod cooperation section of the handle sleeve when the handle sleeve is connected with the handle, and water and foreign matters are prevented from entering a threaded connection area of the threaded section and the threaded cooperation section. When the handle sleeve is connected with the handle, the first sealing device can be sealingly connected with the light rod cooperation section of the handle sleeve, water and foreign matters can be effectively blocked from entering the threaded connection area of the threaded section and the threaded cooperation section, rust and jamming of the threaded connection area caused by water or foreign matters can be avoided, the stability and service life of the threaded connection between the handle and the handle sleeve are guaranteed, and the smoothness of the operation of the valve core is ensured.

Description

Technical Field

[0001] This application relates to the field of flow valve technology, and more particularly to a valve core. Background Technology

[0002] In valve core structures, the handle and handle sleeve are typically assembled and fixed via a threaded connection. The threaded connection area (i.e., the area where the handle and handle sleeve are threaded together) is crucial for ensuring the stability of their connection. However, in existing valve cores, after assembly, the threaded connection area of ​​the handle and handle sleeve is often exposed to water flow and foreign objects.

[0003] Due to the lack of a targeted sealing design, water, dust, and impurities can easily enter the threaded connection area through the gap between the handle and the handle sleeve. Over time, water can cause corrosion of the threaded section and the mating thread, especially for metal threads. Corrosion can compromise the thread's fit precision and even cause it to seize up. Foreign objects entering the valve can cause wear during thread engagement or relative movement, leading to increased thread clearance and problems such as handle loosening and adjustment malfunction. These issues not only affect the normal use of the valve core but also shorten its lifespan, increasing the frequency and cost of maintenance or replacement.

[0004] However, the inventors have discovered at least the following technical problems in the relevant technology: the threaded connection area between the handle and the sleeve in the existing valve core is easily invaded by water and foreign objects, resulting in problems such as thread jamming, corrosion, wear and connection failure. Utility Model Content

[0005] One object of this application is to provide a valve core that at least solves the above-mentioned problems.

[0006] To achieve the above objectives, some embodiments of this application provide a valve core, comprising:

[0007] The handle has a threaded section and a smooth section arranged sequentially along the axial direction;

[0008] The glove is fitted onto the handle and has a threaded section and a smooth section arranged sequentially along the axial direction;

[0009] The outer circumferential surface of the bare rod section is provided with a first sealing device, so that when the glove and handle are connected, the first sealing device is sealed to the bare rod mating section of the glove to prevent water and foreign objects from entering the threaded connection area of ​​the threaded section and the threaded mating section.

[0010] In some embodiments, the outer peripheral surface of the bare rod section is provided with an annular groove, in which a sealing ring is embedded to form a first sealing device for sealing the threaded connection area of ​​the glove and the handle.

[0011] In some embodiments, the first sealing device is located on one side of the threaded section, and when the threaded section and the threaded mating section are threadedly connected, the first sealing device is sealed to the smooth rod mating section.

[0012] In some embodiments, the handle includes opposing first and second ends, with a threaded segment extending axially from the first end.

[0013] In some embodiments, the length of the smooth rod mating section is adapted to the length of the threaded section so that when the first end of the threaded section is connected to the second end of the threaded mating section, the first sealing device is sealed to the smooth rod mating section.

[0014] In some embodiments, the valve core further includes: a first housing having a cavity along the axial direction for mounting a handle and a handle glove; wherein the first housing has a first limiting portion on its inner annular surface, and the handle glove has a first limiting mating portion on its outer peripheral surface, the first limiting portion cooperating with the first limiting mating portion to define an anti-slip position of the handle glove relative to the first housing in a first direction.

[0015] In some embodiments, the first housing is further provided with a second limiting portion on its inner ring surface, and the outer peripheral surface of the handle is provided with a second limiting engagement portion. The second limiting portion engages with the second limiting engagement portion to limit the anti-slip position of the handle relative to the first housing in a first direction.

[0016] In some embodiments, the outer peripheral surface of the second limiting mating part is provided with a second sealing device to form a sealed connection with the inner annular surface of the first housing.

[0017] In some embodiments, the first limiting portion and the second limiting portion are arranged in a stepped manner within the first housing, and the radial dimension of the first limiting portion is greater than the radial dimension of the second limiting portion, so that the handle and the glove are sequentially inserted into the first housing.

[0018] In some embodiments, when the first end of the threaded section is connected to the first end of the threaded mating section, the end of the glove is abutted against the second limiting mating portion.

[0019] Compared with related technologies, the solution provided in this application embodiment has a first sealing device on the outer circumferential surface of the smooth rod section of the handle. When the handle glove is connected to the handle, the first sealing device can form a sealed connection with the smooth rod mating section of the handle glove. This can effectively prevent water and foreign objects from entering the threaded connection area between the threaded section and the threaded mating section, avoiding problems such as corrosion and jamming in the threaded connection area caused by water or foreign objects. This ensures the stability and service life of the threaded connection between the handle and the handle glove, and ensures the smooth operation of the valve core. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a cross-sectional schematic diagram of the handle and handle glove provided in the embodiments of this disclosure;

[0022] Figure 2 This is a partial cross-sectional schematic diagram of the valve core provided in an embodiment of this disclosure;

[0023] Figure 3 This is a cross-sectional schematic diagram of the first housing, handle, and handle glove provided in an embodiment of this disclosure;

[0024] Figure 4 This is a cross-sectional schematic diagram of the first outer casing provided in an embodiment of this disclosure;

[0025] Figure 5 This is a schematic diagram of the valve core structure provided in the embodiments of this disclosure;

[0026] Figure 6 This is a schematic diagram of the structure of a valve core in which a portion of the water flows, provided in an embodiment of this disclosure.

[0027] Figure label:

[0028] 10: Handle; 101: Threaded section; 102: Smooth section; 103: First end; 104: Second end; 105: Second limiting mating part; 20: Handle glove; 201: Threaded mating section; 202: Smooth mating section; 203: First limiting mating part; 30: First sealing device; 301: Ring groove; 302: Sealing ring; 40: First outer shell; 401: First limiting part; 4011: Inclined structure; 402: Second limiting part; 50: Second sealing device; 501: Sealing groove; 502: Sealing element; 60: Second outer shell; 601: Positioning boss; 70: Upper sliding sleeve; 80: Lower sliding sleeve; 801: Stop ring; a: Limiting groove; 90: First spring; 100: Second spring; 110: Third outer shell. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0032] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0033] Unless otherwise stated, the term "multiple" means two or more.

[0034] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0035] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0037] Combination Figures 1 to 6As shown in the embodiment of this disclosure, a valve core includes a handle 10 and a handle sleeve 20. The handle 10 has a threaded section 101 and a smooth rod section 102 arranged sequentially along the axial direction; the handle sleeve 20 is fitted onto the handle 10 and has a threaded mating section 201 and a smooth rod mating section 202 arranged sequentially along the axial direction; wherein, the outer peripheral surface of the smooth rod section 102 is provided with a first sealing device 30, so that when the handle sleeve 20 and the handle 10 are connected, the first sealing device 30 is sealed to the smooth rod mating section 202 of the handle sleeve 20, preventing water and foreign matter from entering the threaded connection area of ​​the threaded section 101 and the threaded mating section 201.

[0038] The valve core provided in this embodiment has a first sealing device 30 on the outer circumferential surface of the smooth rod section 102 of the handle 10. When the handle glove 20 is connected to the handle, the first sealing device 30 can form a sealed connection with the smooth rod mating section 202 of the handle glove 20. This can effectively prevent water and foreign objects from entering the threaded connection area between the threaded section 101 and the threaded mating section 201, avoiding problems such as corrosion and jamming in the threaded connection area caused by water or foreign objects. This ensures the stability and service life of the threaded connection between the handle 10 and the handle glove 20, and ensures the smooth operation of the valve core.

[0039] In traditional valve core structures, the threaded connection area between the handle and the handle sleeve often lacks a targeted sealing design. This embodiment achieves a tight seal by using a first sealing device 30 to form a tight seal with the smooth rod mating section 202 of the handle sleeve 20. This acts like a "barrier" outside the threaded connection area, directly preventing water, dust, and impurities from entering the threaded connection area of ​​the threaded section 101 and the threaded mating section 201. This avoids thread corrosion caused by water stagnation in the thread gaps and prevents thread jamming and wear caused by foreign objects entering, protecting the threaded connection structure from the source. When the threaded connection area is unaffected by water and foreign objects, the relative rotation or axial movement between the handle 10 and the handle sleeve 20 will not encounter additional resistance, resulting in smoother operation and avoiding adjustment difficulties caused by thread jamming, thus improving the user experience of the valve core.

[0040] Unlike the traditional technology that relies on the clearance of the thread itself to achieve "passive protection", this embodiment completely solves the problem of easy corrosion and wear in the threaded connection area of ​​the traditional valve core through the active sealing structural design.

[0041] Optionally, the outer peripheral surface of the bare rod section 102 is constructed with an annular groove 301, in which a sealing ring 302 is embedded to form a first sealing device 30, which seals the threaded connection area of ​​the glove 20 and the handle.

[0042] A first sealing device 30 is formed by embedding a sealing ring 302 in the annular groove 301. Utilizing the elastic deformation characteristics of the sealing ring 302, it can tightly conform to the inner wall of the smooth rod mating section 202, enhancing the sealing effect. Simultaneously, the annular groove 301 positions the sealing ring 302, preventing displacement during valve core operation and further ensuring reliable sealing of the threaded connection area.

[0043] Optionally, the first sealing device 30 is located on one side of the threaded section 101. When the threaded section 101 is threadedly connected to the threaded mating section 201, the first sealing device 30 is sealed to the smooth rod mating section 202.

[0044] The first sealing device 30 is positioned close to the threaded section 101, which can form a direct sealing barrier at the entrance of the threaded connection area, shorten the sealing distance, reduce the possibility of water and foreign objects bypassing the sealing device and entering the threaded connection area, and improve the targeting and effectiveness of the seal.

[0045] Optionally, the handle includes a first end 103 and a second end 104 opposite to each other, and a threaded section 101 extends axially from the first end 103.

[0046] This embodiment clarifies the structural layout of the handle by specifying the starting position of the threaded segment 101, making it easier to manufacture. Simultaneously, this arrangement ensures that the threaded segment 101 extends from the end, providing ample operating space for the threaded connection between the handle and the handle sleeve 20, facilitating alignment and engagement during assembly.

[0047] Optionally, the length of the smooth rod mating section 202 is adapted to the length of the threaded section 101 so that when the first end of the threaded section 101 is connected to the second end of the threaded mating section 201, the first sealing device 30 is sealed to the smooth rod mating section 202.

[0048] By matching the lengths of the smooth rod mating section 202 and the threaded section 101, it is ensured that the first sealing device 30 can always maintain effective contact with the smooth rod mating section 202 when the threaded connection is in place. This avoids the sealing device from losing its sealing function due to length mismatch, thus ensuring the continuity and reliability of the seal.

[0049] Optionally, the valve core further includes: a first housing 40 having a cavity along the axial direction for mounting the handle 10 and the handle glove 20; wherein the first housing 40 has a first limiting portion 401 on its inner annular surface, and the handle glove 20 has a first limiting engagement portion 203 on its outer peripheral surface, the first limiting portion 401 and the first limiting engagement portion 203 cooperating to limit the handle glove 20 to an anti-slip position relative to the first housing 40 in a first direction.

[0050] It should be noted that the first direction can be understood as the direction in which the handle 10 extends from the first end 103 to the second end 104.

[0051] The cooperation between the first limiting part 401 and the first limiting mating part 203 can effectively prevent the glove 20 from coming off the first housing 40 in the first direction, ensuring the relative position of the glove 20 and the first housing 40 is stable, and avoiding the valve core structure from disintegrating or malfunctioning due to the glove 20 coming off.

[0052] Optionally, the first outer shell 40 is further provided with a second limiting part 402 on its inner ring surface, and the outer peripheral surface of the handle 10 is provided with a second limiting engagement part 105. The second limiting part 402 and the second limiting engagement part 105 cooperate to limit the anti-slip position of the handle 10 relative to the first outer shell 40 in the first direction.

[0053] The second limiting part 402 further limits the handle 10 relative to the first outer shell 40 in the first direction to prevent it from detaching. In conjunction with the anti-detachment structure of the handle glove 20, it achieves double anti-detachment protection for the core components inside the valve core (handle 10 and handle glove 20) and enhances the stability of the overall structure of the valve core.

[0054] Optionally, the outer peripheral surface of the second limiting mating part 105 is provided with a second sealing device 50 for sealing connection with the inner annular surface of the first housing 40.

[0055] The second sealing device 50 can form a seal between the handle 10 and the first housing 40, preventing water or foreign objects from entering other areas inside the valve core through the gap between the handle 10 and the first housing 40, further improving the overall sealing performance of the valve core and protecting internal components from corrosion.

[0056] Optionally, the outer peripheral surface of the second limiting mating part 105 is constructed with a sealing groove 501, and a sealing element 502 is provided in the sealing groove 501 to form a second sealing device 50. The sealing element 502 abuts against the inner ring surface of the first housing 40 to form a sealed connection.

[0057] Optionally, the first limiting part 401 and the second limiting part 402 are arranged in a stepped shape within the first housing 40, and the radial dimension of the first limiting part 401 is larger than the radial dimension of the second limiting part 402, so that the handle 10 and the glove 20 are sequentially inserted into the first housing 40.

[0058] The stepped limiting part design provides a clear guiding path for the assembly of the handle 10 and the handle sleeve 20, allowing them to smoothly and sequentially enter the first housing 40, simplifying the assembly process and improving assembly efficiency. At the same time, the difference in radial dimensions avoids interference between components during assembly, ensuring smooth assembly.

[0059] Optionally, when the first end of the threaded section 101 is connected to the first end of the threaded mating section 201, the end of the glove 20 is abutted against the second limiting mating part 105.

[0060] By abutting the end of the glove 20 against the second limiting engagement part 105, a mechanical limit is formed when the threaded connection is in place, preventing excessive thread engagement that could damage the component. At the same time, it enhances the connection stability between the handle 10 and the glove 20, reducing loosening during use.

[0061] Optionally, along the first direction, the inner annular surface of the first limiting portion 401 is provided with a bevel structure 4011 at the end so that the handle 10 can be inserted into the cavity of the first housing 40.

[0062] The inclined structure 4011 serves as a guide, guiding the handle 10 smoothly into the cavity when it is inserted into the first outer shell 40, reducing the difficulty of alignment during assembly, avoiding assembly jamming caused by the end structure, and improving assembly convenience.

[0063] Optionally, the valve core further includes: a second housing 60, which is threadedly connected to the first housing 40; and the first end of the first housing 40 and the first end of the handle 20 are located inside the second housing 60.

[0064] The threaded connection between the second outer shell 60 and the first outer shell 40 forms a double-layer protective enclosure for the internal components of the valve core, enhancing the overall structural strength of the valve core. Simultaneously, placing some components within the second outer shell 60 reduces the direct impact of the external environment on the internal components, extending their service life.

[0065] Optionally, the valve core also includes a threaded upper sliding sleeve 70 and a lower sliding sleeve 80, which are disposed inside the second housing 60, with the upper sliding sleeve 70 located on the side of the handle sleeve 20.

[0066] The threaded connection between the upper sliding sleeve 70 and the lower sliding sleeve 80 facilitates their disassembly and assembly. Its location within the second housing 60 allows for axial sliding using the space provided by the second housing 60. Simultaneously, the upper sliding sleeve 70 is close to the handle sleeve 20, enabling it to cooperate with the handle sleeve 20 to adjust the valve core and enhance its functionality.

[0067] Optionally, the outer peripheral surfaces of the upper sliding sleeve 70 and the lower sliding sleeve 80 are provided with limiting grooves a, and the inner annular surface of the second outer shell 60 is provided with positioning bosses 601, which are located in the limiting grooves a, to limit the axial displacement of the upper sliding sleeve 70 and the lower sliding sleeve 80.

[0068] The engagement of the positioning boss 601 and the limiting groove a can limit the excessive axial movement of the upper sliding sleeve 70 and the lower sliding sleeve 80, preventing the components from detaching or malfunctioning due to excessive displacement, ensuring that the sliding sleeve assembly works stably within the preset range, and improving the accuracy of valve core adjustment.

[0069] Optionally, the inner annular surface of the sliding sleeve 80 has a protruding stop ring 801; the valve core also includes: a first spring 90, which is disposed in the cavity connecting the upper sliding sleeve 70 and the lower sliding sleeve 80, with one end abutting against the stop ring 801 of the lower sliding sleeve 80, and the other end sleeved on the first end of the handle glove 20.

[0070] The stop ring 801 provides a stable support point for the first spring 90, ensuring the accurate installation position of the first spring 90 in the chamber. The first spring 90 acts on the handle glove 20 through elastic force, providing a reset force after the valve core is operated, so that the relevant components return to their initial position, ensuring the automatic reset function of the valve core and improving ease of use.

[0071] Combination Figure 6 As shown, during the use of the valve core, when the handle 10 and the handle glove 20 move in the opposite direction of the first direction, the first spring 90 is compressed and generates an elastic force acting on the handle glove 20; at this time, the arrow direction indicates the water pressure brought by the water flow, and the water flow flows to the first sealing device 30 in the direction indicated by the arrow. Under the sealing stop of the first sealing device 30, it no longer continues to flow. The sealing ring of the first sealing device 30 is subjected to water pressure, which counteracts the elastic force applied to the handle glove 20 by the first spring 90, making the operation of the handle 10 and the handle glove 20 smoother.

[0072] Optionally, the valve core further includes: a third housing 110, the outer peripheral surface of which is threadedly connected to the second housing 60, and the inner ring surface of which is engaged with the lower sliding sleeve 80; and a second spring 100, which is disposed inside the third housing 110, with one end abutting against the end of the third housing 110 and the other end abutting against the lower sliding sleeve 80.

[0073] The threaded connection between the third housing 110 and the second housing 60 facilitates disassembly and maintenance, and the snap-fit ​​with the lower sleeve 80 can drive the lower sleeve 80 to move synchronously; the second spring 100 provides continuous elastic pressure to the lower sleeve 80 through the abutment at both ends, ensuring that the lower sleeve 80 can stably reset after axial movement, further enhancing the reset reliability and structural stability of the valve core.

[0074] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims, and the foregoing embodiments should be considered exemplary and non-limiting.

Claims

1. A valve core, characterized in that, include: The handle has a threaded section and a smooth section arranged sequentially along the axial direction; The glove is fitted onto the handle and has a threaded section and a smooth section arranged sequentially along the axial direction; The outer circumferential surface of the bare rod section is provided with a first sealing device. When the glove and handle are connected, the first sealing device is sealed to the bare rod mating section of the glove to prevent water and foreign objects from entering the threaded connection area of ​​the threaded section and the threaded mating section.

2. The valve core according to claim 1, characterized in that, The outer circumferential surface of the bare shaft section is constructed with an annular groove, in which a sealing ring is embedded to form a first sealing device for sealing the threaded connection area of ​​the glove and the handle.

3. The valve core according to claim 1, characterized in that, The first sealing device is located on one side of the threaded section. When the threaded section and the threaded mating section are threadedly connected, the first sealing device is sealed to the smooth rod mating section.

4. The valve core according to claim 1, characterized in that, The handle includes a first end and a second end, with a threaded section extending axially from the first end of the handle.

5. The valve core according to claim 1, characterized in that, The length of the smooth rod mating section is adapted to the length of the threaded section so that when the first end of the threaded section is connected to the second end of the threaded mating section, the first sealing device is sealed to the smooth rod mating section.

6. The valve core according to any one of claims 1 to 5, characterized in that, Also includes: The first outer casing has an axially oriented cavity for mounting the handle and the handle glove; The first outer shell has a first limiting part on its inner ring surface, and the outer peripheral surface of the glove has a first limiting mating part. The first limiting part and the first limiting mating part cooperate to limit the glove's anti-slip position relative to the first outer shell in a first direction.

7. The valve core according to claim 6, characterized in that, The first outer shell also has a second limiting part on its inner ring surface, and the outer peripheral surface of the handle has a second limiting mating part. The second limiting part and the second limiting mating part cooperate to limit the anti-slip position of the handle relative to the first outer shell in the first direction.

8. The valve core according to claim 7, characterized in that, The outer peripheral surface of the second limiting mating part is equipped with a second sealing device to form a sealed connection with the inner annular surface of the first housing.

9. The valve core according to claim 7, characterized in that, The first limiting part and the second limiting part are arranged in a stepped shape inside the first housing, and the radial dimension of the first limiting part is larger than the radial dimension of the second limiting part, so that the handle and the glove are sequentially inserted into the first housing.

10. The valve core according to claim 7, characterized in that, With the first end of the threaded section connected to the first end of the threaded mating section, the end of the glove is brought into contact with the second limiting mating part.

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