Valve element capable of adjusting flow

Abstract

The utility model discloses a valve core capable of adjusting flow, which comprises a shell, a connecting hole is arranged in the shell, an equal-diameter moving shaft is arranged in the connecting hole, the moving shaft can move up and down and rotate horizontally in the connecting hole, and a gap capable of allowing water to pass through is formed between the outer circumference of the moving shaft and the inner circumference of the connecting hole. An annular groove is formed in the axial middle of the moving shaft and can be communicated with a water inlet located in the peripheral side of the connecting hole, a notch is further formed in the peripheral side, located below the annular groove, of the moving shaft and can be communicated with the annular groove, and the notch can be communicated with a water outlet located in the peripheral side of the connecting hole; the water outlet is positioned below the water inlet; according to the utility model, the water flow can be adjusted through rotation and pressing.

Description

Technical Field

[0001] The utility model relates to a valve core capable of adjusting flow rate. Background Art

[0002] The valve core is widely used in our life, especially in fluids. However, in the existing valve core structures capable of adjusting flow rate, most of them adjust the flow rate by axial movement or rotation. For high-pressure flow rate adjustment (especially in the state of water suspension), the hand feeling is heavy and the force value is large. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a valve core capable of adjusting flow rate.

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

[0005] A valve core capable of adjusting flow rate includes a shell. A connecting hole is arranged in the shell. A moving shaft with the same diameter is arranged in the connecting hole. The moving shaft can move up and down and rotate horizontally in the connecting hole. A gap through which water can pass is formed between the outer circumference of the moving shaft and the inner circumference of the connecting hole. An annular groove is arranged in the middle of the moving shaft axially. The annular groove can communicate with a water inlet located on the circumferential side of the connecting hole. A notch is also arranged on the circumferential side of the moving shaft below the annular groove. The notch can communicate with the annular groove and can communicate with a water outlet located on the circumferential side of the connecting hole. The water outlet is located below the water inlet. When the overlapping area between the notch and the water outlet is the largest and the overlapping area between the annular groove and the water inlet is also the largest, the valve core is at the maximum water outlet flow rate. When the overlapping area between the circumferential side wall of the moving shaft beside the notch in the radial direction and the water outlet is the largest, the valve core is at the minimum water outlet flow rate.

[0006] In an embodiment of the utility model, when the outer circumferential wall of the moving shaft above the annular groove and the water inlet are completely overlapped axially, the valve core is at the minimum water outlet flow rate. When the valve core is at the minimum water outlet flow rate, the water flow of the water inlet can pass through the water outlet through the gap.

[0007] In an embodiment of the utility model, sealing rings are arranged on the inner circumferential walls of the connecting hole above the water inlet and below the water outlet. The sealing rings can keep mating connection with the outer circumferential walls of the upper end and the lower end of the moving shaft. The radian of the notch is not less than that of the water outlet.

[0008] In an embodiment of the utility model, the curvature of the notch is 180°, the curvature of the water outlet is not greater than 180°, the notch can completely radially overlap and radially offset with the water outlet, when the notch radially overlaps with the water outlet, the valve core is at a maximum water outlet flow rate, and when the notch radially offsets with the water outlet, the valve core is at a minimum water outlet flow rate; when the movable axis rotates from the radial overlap of the notch and the water outlet to the radial offset of the notch and the water outlet, the valve core changes from the maximum water outlet flow rate to the minimum water outlet flow rate.

[0009] In an embodiment of the utility model, it also includes a water inlet body and a water outlet body that are matched and connected. The water inlet body and the water outlet body are arranged in a shell, and the water inlet is arranged on the outer periphery of the upper end of the water inlet body. A water inlet channel that can be connected to the water inlet is arranged between the outer periphery of the water inlet body and the shell; a connecting body is arranged in the water inlet body and the water outlet body, and a connecting hole is formed in the water inlet body, the water outlet body and the connecting body, and the water outlet is arranged on the peripheral side wall of the connecting body.

[0010] In an embodiment of the utility model, bosses are distributed in an annular manner on the lower side of the shell, the water outlet body abuts against the bosses, a water groove is formed between the periphery of the connecting body and the inner periphery of the water inlet body, a water outlet is formed between the water inlet body and the water outlet body, and a water passage is formed between the periphery of the water outlet body and the periphery of the water passage body, and the water flowing out of the water outlet can pass through the water groove, the water outlet, and the water passage in sequence before flowing out of the valve core.

[0011] In an embodiment of the utility model, an elastic sheet extends downward from the lower end of the water inlet body, a connecting sheet extending outward is provided at the upper end of the water outlet body, a snap-in block is provided on the outer periphery of the elastic sheet, a slot is provided on the connecting sheet, and the snap-in block can be connected with the slot.

[0012] In the embodiment of the utility model, the lower end of the connecting body is supported above the water outlet, the connecting body is located on the inner periphery of the connecting piece, and a sealing ring is provided between the lower part of the connecting body and the water outlet.

[0013] In the embodiment of the utility model, an adjusting rod is also included, and the adjusting rod can move synchronously with the moving shaft.

[0014] In an embodiment of the utility model, it also includes a stator and a rotor that can be arranged in the shell, the stator and the rotor are connected in a cooperative manner, the adjusting rod is sleeved in the stator and the rotor, the lower end surface of the rotor is abutted and matched with the upper end surface of the movable shaft, and a spring is arranged at the lower end of the movable shaft.

[0015] The utility model discloses a flow-adjustable valve core, which has the following beneficial effects: the flow can be adjusted by pressing (up and down) or rotating the movable shaft for adjusting the flow; at the same time, because the upper and lower electrodes of the movable shaft are of equal diameter, the flow adjustment process is not affected by the water pressure, and the high and low pressure water suspension state saves effort; and the flow adjustment function saves flow and energy, thereby avoiding waste of water. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is a perspective view of the present utility model.

[0018] Figure 2 is a schematic diagram of the maximum flow rate of the present utility model Figure 1 .

[0019] Figure 3 is a schematic diagram of the maximum flow rate of the present utility model Figure 2 .

[0020] Figure 4 is a schematic diagram of the present utility model at the first minimum flow rate Figure 1 .

[0021] Figure 5 is a schematic diagram of the present utility model at the first minimum flow rate Figure 2 .

[0022] Figure 6 is a schematic diagram of the present utility model at the second minimum flow rate.

[0023] Figure 7 is a schematic diagram of the moving shaft in the present utility model.

[0024] Figure 8 is an exploded view of the water inlet body, water outlet body and connecting body in the present utility model. Detailed Description of the Preferred Embodiments

[0025] 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. Obviously, 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 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 claimed, but merely represents 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 fall within the scope of protection of the present utility model.

[0026] 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. It is 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.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not 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.

[0028] In the present utility model, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. 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.

[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but are in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating 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 the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0030] Referring to the accompanying drawings of the specification, a flow-regulating valve core includes a housing 10. A connecting hole 11 is provided inside the housing. A moving shaft 20 with the same diameter is arranged inside the connecting hole. The moving shaft and the connecting hole are in clearance fit. The moving shaft can move up and down and rotate horizontally inside the connecting hole. The movement of the moving shaft can adjust the flow rate. A water-passing gap 12 is formed between the outer periphery of the moving shaft and the inner periphery of the connecting hole. During use, when mainly passing water through the gap, the valve core is at the minimum water outlet flow rate. An annular groove 21 is provided in the middle of the moving shaft in the axial direction. The annular groove can communicate with a water inlet located on the circumferential side of the connecting hole. The axial dimension of the annular groove (which can be the height in the figure) is not less than the axial dimension of the water inlet. When the maximum dimensions of the annular groove and the water inlet 31 coincide, the valve core is at the maximum water inlet flow rate. A notch 22 is further provided on the circumferential side of the moving shaft below the annular groove. The notch can communicate with the annular groove. The side wall of the moving shaft beside the notch radially is a resisting side wall 23, which can also form a gap with the side wall of the connecting hole. The notch can communicate with a water outlet located on the circumferential side of the connecting hole. When the maximum dimensions of the notch and the water outlet 51 coincide and at the same time the maximum dimensions of the annular groove and the water inlet coincide, the valve core is at the maximum water outlet flow rate. The water outlet is located below the water inlet. When the overlapping area between the notch and the water outlet is the largest and the overlapping area between the annular groove and the water inlet is also the largest, the valve core is at the maximum water outlet flow rate. When the overlapping area between the circumferential side wall of the moving shaft beside the notch and the water outlet is the largest, at this time the side wall of the moving shaft (i.e., the above-mentioned resisting side wall) completely blocks beside the water outlet, and the valve core is at the minimum water outlet flow rate. This means that during rotation, when the moving shaft moves downward, when the outer peripheral wall of the moving shaft above the annular groove completely coincides with the water inlet axially, at this time the side wall of the moving shaft blocks beside the water inlet, and water can only pass through the gap, and the valve core is also at the minimum water outlet flow rate. When the valve core is at the minimum water outlet flow rate, the water flow at the water inlet can pass through the water outlet via the gap.

[0031] In order to ensure the overall sealing, sealing rings 13 are provided on the inner walls of the connecting holes above the water inlet and below the water outlet. The sealing rings can maintain a mating connection with the outer walls of the upper and lower ends of the movable shaft, and the curvature of the notch is not less than the curvature of the water outlet.

[0032] In one embodiment, the curvature of the notch is 180°, the curvature of the water outlet is not greater than 180°, and the curvature of the water outlet is also 180°, so that when the notch and the water outlet are completely overlapped, the water outlet with a maximum flow rate can be achieved, and when the notch and the water outlet are completely offset (not overlapping), the water outlet with a minimum flow rate can be achieved. The notch can completely radially overlap and radially offset with the water outlet. When the notch and the water outlet are radially overlapped, the valve core is at a maximum water outlet flow rate, and when the notch and the water outlet are radially offset, the valve core is at a minimum water outlet flow rate; when the movable axis rotates from the radial overlap of the notch and the water outlet to the radial offset of the notch and the water outlet, the valve core changes from a maximum water outlet flow rate to a minimum water outlet flow rate.

[0033] Furthermore, it also includes a water inlet body 30 and a water outlet body 40 that are connected to each other. The water inlet body and the water outlet body are arranged in the shell, the water inlet 31 is arranged on the outer periphery of the upper end of the water inlet body, and a water inlet channel 32 that can be connected to the water inlet is arranged between the outer periphery of the water inlet body and the shell; a connecting body 50 is arranged in the water inlet body and the water outlet body, and connecting holes are formed in the water inlet body, the water outlet body and the connecting body, and the water outlet 51 is arranged on the peripheral side wall of the connecting body.

[0034] Furthermore, a boss 14 is distributed in an annular manner on the lower side of the shell, the water outlet body abuts against the boss, a water groove 52 is formed between the periphery of the connecting body and the inner periphery of the water inlet body, a water outlet (not marked in the figure) is formed between the water inlet body and the water outlet body, and a water passage 41 is formed between the periphery of the water outlet body and the periphery of the water passage body, and the water flowing out of the water outlet can pass through the water groove, the water outlet, and the water passage in sequence before flowing out of the valve core.

[0035] Preferably, an elastic sheet 32 ​​extends downward from the lower end of the water inlet body, and a connecting sheet 42 extending outward is provided at the upper end of the water outlet body. The elastic sheet and the connecting sheet are arranged at intervals on the water inlet body and the water outlet body, and then can be connected into an integral accessory. The above-mentioned water outlet is formed between adjacent integral accessories, and a snap-in block 33 is provided at the outer periphery of the elastic sheet, and a slot 43 is provided on the connecting sheet. The snap-in block can be connected with the slot, so that the water inlet body and the water outlet body are connected together, and the connecting body can be pressed between the two at the same time. Specifically, the lower end of the connecting body is supported above the water outlet body, the connecting body is located on the inner periphery of the connecting sheet, and a sealing ring 13 is provided between the bottom of the connecting body and the water outlet body.

[0036] Further, it further includes an adjusting rod 60 which can move synchronously with the moving shaft. A keyway connection can be adopted here. At the same time, it also includes a stator 71 and a rotor 72 that can be arranged inside the housing. The cooperation between the stator and the rotor is similar to the existing switching structure, that is, the pressing mode of a ballpoint pen, which can realize the up and down movement of the moving shaft and then fix the position. The stator and the rotor are connected in cooperation. The adjusting rod is sleeved inside the stator and the rotor. The lower end surface of the rotor abuts and cooperates with the upper end surface of the moving shaft. A spring 73 is arranged at the lower end of the moving shaft, and this spring can be located between the moving shaft and the water outlet body.

[0037] More specifically, the flow-adjusting moving shaft of the present invention can move up and down or rotate. When moving up and down, the water passing area of the waterway changes during water inlet. In the protruding state (when the annular groove coincides with the water inlet), the flow rate can reach the maximum; in the pressed state (when the annular groove is separated from the water inlet), the flow rate becomes smaller; in the protruding state, during the rotation of the mandrel, the notch and the water outlet form different water passing areas, realizing the adjustment from a small flow rate to a full flow rate or from a full flow rate to a small flow rate. When switching between the up and down movement or the rotational movement of the moving shaft, the switching mandrel is always not affected by the water pressure. When passing high-pressure water, labor-saving flow adjustment is achieved. The flow-adjusting function also plays a role in saving flow and energy, avoiding the waste of water resources.

[0038] 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, 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. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A flow-adjustable valve core, comprising a housing, wherein a connecting hole is provided in the housing, characterized in that: A movable shaft of equal diameter is arranged in the connecting hole, and the movable shaft can move up and down and rotate horizontally in the connecting hole, and a gap through which water can pass is formed between the outer periphery of the movable shaft and the inner periphery of the connecting hole; an annular groove is arranged in the middle of the axial direction of the movable shaft, and the annular groove can be connected with the water inlet located on the peripheral side of the connecting hole, and a notch is also arranged on the peripheral side of the movable shaft below the annular groove, and the notch can be connected with the annular groove, and the notch can be connected with the water outlet located on the peripheral side of the connecting hole, and the water outlet is located below the water inlet; When the overlapping area between the notch and the water outlet is the largest and the overlapping area between the annular groove and the water inlet is also the largest, the valve core is at the maximum water outlet flow rate; when the overlapping area between the circumferential side wall of the moving shaft located radially beside the notch and the water outlet is the largest, the valve core is at the minimum water outlet flow rate.

2. A flow-adjustable valve core according to claim 1, characterized in that: When the outer peripheral wall of the moving shaft located above the annular groove completely overlaps with the water inlet in the axial direction, the valve core is at the minimum water outlet flow rate; When the valve core is at the minimum water outlet flow rate, the water flow from the water inlet can pass through the water outlet through the gap.

3. A flow-adjustable valve core according to claim 2, characterized in that: The inner walls of the connection holes above the water inlet and below the water outlet are provided with sealing rings, which can maintain a matching connection with the outer walls of the upper and lower ends of the movable shaft, and the curvature of the notch is not less than that of the water outlet.

4. A flow-adjustable valve core according to claim 3, characterized in that: The arc of the notch is 180°, and the arc of the water outlet is not greater than 180°. The notch can completely radially overlap with and radially offset from the water outlet. When the notch radially overlaps with the water outlet, the valve core is at the maximum water outlet flow rate, and when the notch radially offsets from the water outlet, the valve core is at the minimum water outlet flow rate; when the movable axis rotates from the radial overlap of the notch and the water outlet to the radial offset of the notch and the water outlet, the valve core changes from the maximum water outlet flow rate to the minimum water outlet flow rate.

5. A flow-adjustable valve core according to any one of claims 1 to 4, characterized in that: It also includes a water inlet body and a water outlet body that are connected to each other. The water inlet body and the water outlet body are arranged in a shell, the water inlet is arranged on the outer periphery of the upper end of the water inlet body, and a water inlet channel that can be connected to the water inlet is arranged between the outer periphery of the water inlet body and the shell; a connecting body is arranged in the water inlet body and the water outlet body, and connecting holes are formed in the water inlet body, the water outlet body and the connecting body, and the water outlet is arranged on the peripheral side wall of the connecting body.

6. The flow-adjustable valve core according to claim 5, characterized in that: Bosses are distributed in an annular manner on the lower side of the shell, the water outlet body abuts against the bosses, a water groove is formed between the periphery of the connecting body and the inner periphery of the water inlet body, a water outlet is formed between the water inlet body and the water outlet body, and a water passage is formed between the periphery of the water outlet body and the periphery of the water passage body, and the water flowing out of the water outlet can flow out of the valve core after passing through the water groove, the water outlet and the water passage in sequence.

7. The flow-adjustable valve core according to claim 6, characterized in that: An elastic sheet extends downward from the lower end of the water inlet body, a connecting sheet extending outward is arranged at the upper end of the water outlet body, a clamping block is arranged at the periphery of the elastic sheet, a clamping slot is arranged on the connecting sheet, and the clamping block can be connected with the clamping slot in cooperation.

8. The flow-adjustable valve core according to claim 7, characterized in that: The lower end of the connecting body is supported above the water outlet, the connecting body is located at the inner periphery of the connecting piece, and a sealing ring is arranged between the lower part of the connecting body and the water outlet.

9. A flow-adjustable valve core according to any one of claims 1-4, 6-8, characterized in that: The utility model also comprises an adjusting rod, and the adjusting rod can move synchronously with the moving shaft.

10. The flow-adjustable valve core according to claim 9, characterized in that: It also includes a stator and a rotor that can be arranged in the shell, the stator and the rotor are connected in a cooperative manner, the adjusting rod is sleeved in the stator and the rotor, the lower end surface of the rotor is abutted and matched with the upper end surface of the moving shaft, and a spring is arranged at the lower end of the moving shaft.

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