Adjusting structure of valve element, water-saving valve and faucet

Abstract

The utility model relates to the technical field of faucets, in particular to an adjusting structure of a valve element, a water-saving valve comprising the adjusting structure of the valve element and a faucet comprising the water-saving valve. The adjusting structure is used for adjusting a valve element shaft of an adjusting valve element so that the valve element can be opened or closed, the adjusting structure comprises a transmission assembly, the transmission assembly is provided with an input end and an output end, the input end is used for receiving adjusting action and transmitting adjusting power to the output end, the output end is connected with the valve element shaft, and the output end drives the valve element shaft to rotate so as to open or close the valve element. The transmission ratio from the input end to the output end is a deceleration transmission ratio. Therefore, the adjusting structure can obtain a small-amplitude valve element opening stroke through a large-amplitude adjusting action, the defect that the water outlet flow of an existing faucet is difficult to adjust and control due to the fact that the rotating stroke of a valve element shaft is small is effectively overcome, the water outlet flow can be adjusted and controlled conveniently according to the requirements of different use scenes, and the purpose of saving water is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of faucets, in particular to an adjusting structure of a valve core, a water-saving valve including the adjusting structure of the valve core, and a faucet including the water-saving valve. Background Art

[0002] At present, common faucets in families and public places include types such as shower faucets, washbasin faucets, and kitchen faucets. Water-saving valves are provided on such faucets to control the opening and closing of the faucets, as well as the water flow rate, water temperature, etc. The water-saving valve includes a valve core and an adjusting structure, and the adjusting structure is used to adjust the valve core to open or close the water-saving valve and adjust the water output flow rate and water temperature of the water-saving valve.

[0003] Such as Figures 1 to 5As shown in the figure, it is the spool structure of a commonly used faucet water-saving valve in the prior art. The spool 01 includes a spool housing 01i, a top seal block 01g, a bottom seal block 01h, a flow rate adjustment block 01c, and a spool shaft 01a. Among them, a cavity is formed through the spool housing 01i along the vertical axis. A stepped surface 010i facing the bottom end of the spool housing 01i is formed on the cavity wall near the top end of the spool housing 01i. The top seal block 01g is arranged in the cavity of the spool housing 01i and is rotatably matched with the cavity wall at the top end of the cavity. The bottom of the top seal block 01g abuts against the stepped surface 010i, and a through hole is formed through the top seal block 01g along the vertical axis. The bottom seal block 01h is arranged in the cavity of the spool housing 01i and is hermetically matched with the cavity wall at the bottom end of the cavity. The bottom seal block 01h is fixedly connected to the spool housing 01i. A first water inlet hole 01d, a second water inlet hole 01e, and a water outlet hole 01f are vertically formed through the bottom seal block 01h. The first water inlet hole 01d and the second water inlet hole 01e are respectively used to connect cold water pipes and hot water pipes to input cold water and hot water, and the water outlet hole 01f is used to output water flow. The flow rate adjustment block 01c is clamped between the bottom seal block 01h and the top seal block 01g and makes the top seal block 01g contact the stepped surface 010i. There is a sliding fit between the bottom surface of the bottom end of the flow rate adjustment block 01c and the bottom seal block 01h, and between the top surface of the top end of the flow rate adjustment block 01c and the top seal block 01g. The cavity of the spool housing 01i provides a moving space for the flow rate adjustment block 01c between the bottom seal block 01h and the top seal block 01g. A support rod 01b is arranged radially in the through hole of the top seal block 01g. The spool shaft 01a passes through the through hole of the top seal block 01g and is rotatably arranged on the support rod 01b around the support rod 01b. The bottom end of the spool shaft 01a is connected to the top surface of the flow rate adjustment block 01c. The top end of the spool shaft 01a extends outside the top end of the cavity of the spool housing 01i. By applying a force to the top end of the spool shaft 01a to make the spool shaft 01a rotate around the support rod 01b or rotate around the vertical axis, the bottom end of the spool shaft 01a can drive the flow rate adjustment block 01c to slide or rotate. A groove 010c is formed on the bottom surface of the flow rate adjustment block 01c. By sliding the flow rate adjustment block 01c, the groove 010c can be communicated with one or more of the first water inlet hole 01d, the second water inlet hole 01e, and the water outlet hole 01f on the bottom seal block 01h, so as to change the state of the spool 01, open or close the spool 01, or adjust the water flow rate or water temperature of the water outlet hole 01f of the spool 01.

[0004] As Figure 3As shown in the figure, the dotted line portion is the opening of the groove 010c located on the bottom surface of the flow regulating block 01c. When the groove 010c is connected to the water outlet hole 01f, and the groove 010c is not connected to the first water inlet hole 01d and the second water inlet hole 01e, the first water inlet hole 01d and the second water inlet hole 01e are both isolated from the water outlet hole 01f, and the valve core 01 is in a closed state. When the valve core 01 is in a closed state, the valve core shaft 01a is usually set to be in a vertical state.

[0005] like Figure 4 As shown, when the valve core 01 needs to be opened, the valve core shaft 01a is rotated around the support rod 01b, and the flow regulating block 01c is driven to slide in the direction close to the first water inlet hole 01d and the second water inlet hole 01e, so that the groove 010c is connected with the first water inlet hole 01d and the second water inlet hole 01e while maintaining the connection with the water outlet hole 01f, so that the water outlet hole 01f is connected with the first water inlet hole 01d and the second water inlet hole 01e, so that the valve core 01 is opened. At this time, the cold water and hot water input into the cold water pipe and the hot water pipe enter the groove 010c through the first water inlet hole 01d and the second water inlet hole 01e respectively, and then pass through the groove 010c and output from the water outlet hole 01f. As the sliding displacement of the flow regulating block 01c toward the first water inlet hole 01d and the second water inlet hole 01e increases, the opening of the first water inlet hole 01d and the second water inlet hole 01e gradually increases, and the water flow also gradually increases. The sliding displacement of the flow regulating block 01c is controlled by controlling the amplitude of the valve core shaft 01a rotating around the support rod 01b, so that the water outflow rate of the water outlet hole 01f of the valve core 01 can be adjusted.

[0006] like Figure 5 As shown, when the water temperature needs to be adjusted, the valve core shaft 01a is rotated around the vertical axis, the support rod 01b and the top sealing block 01g rotate synchronously with the valve core shaft 01a, and the valve core shaft 01a drives the flow adjustment block 01c to slide between the first water inlet hole 01d and the second water inlet hole 01e, so that the opening of one of the water inlet holes can be gradually reduced and the opening of the other water inlet hole can be gradually increased, thereby adjusting the ratio of cold and hot water in the input groove 010c, and realizing the adjustment of the water flow and water temperature output from the water outlet hole 01f of the valve core 01.

[0007] like Figure 6 and Figure 7As shown, they are respectively the closed and open states of the faucet 02 adopting the spool structure of the above water-saving valve. The spool 01 is installed inside the faucet 02. The first water inlet hole 01d and the second water inlet hole 01e are respectively communicated with two independent water supply pipes 02b (the cold water pipe and the hot water pipe respectively). The water outlet hole 01f is communicated with the inner cavity of the faucet 02. The water flow output from the water outlet hole 01f enters the inner cavity of the faucet 02 and finally is output to the outside through the faucet opening of the faucet 02. The faucet 02 is provided with a handle 02a fixedly connected to the top of the spool shaft 01a located outside the spool housing 01i. The handle 02a acts on the spool shaft 01a as an adjustment structure to make the spool shaft 01a rotate around the support rod 01b to open or close the spool 01 or adjust the water flow rate of the water outlet hole 01f of the spool 01, or make the spool shaft 01a rotate around the vertical axis to adjust the water temperature of the water outlet hole 01f of the spool 01.

[0008] Due to the limitation of the structural size of the spool 01, when the flow rate adjustment block 01c slides towards the first water inlet hole 01d and the second water inlet hole 01e to open the spool 01, it does not need to move a large distance. Correspondingly, when the spool shaft 01a rotates around the support rod 01b to push the flow rate adjustment block 01c to make the spool 01 reach the maximum open state from the closed state, the rotation angle of the spool shaft 01a is generally about 30°. Since the handle 02a and the spool shaft 01a are fixedly connected, when the handle 02a is rotated to drive the spool shaft 01a to rotate, the rotation angle of the handle 02a is the same as that of the spool shaft 01a. Therefore, when the faucet 02 is adjusted from the closed state to the maximum open state by operating the handle 02a, the adjustment stroke of the handle 02a is also relatively small. And the small adjustment stroke of the handle 02a makes it difficult to control the size of the water flow rate during the adjustment process. Usually, when people turn on the faucet 02, it reaches the maximum water flow rate, resulting in a lot of unnecessary water resource waste. In order to save water, some faucets 02 are deliberately adjusted to a smaller maximum water flow rate, and water-saving devices on the market also reduce the water flow rate in various ways to achieve the purpose of water conservation. This not only destroys the original design intention of the faucet 02 but also loses the maximum water flow rate, and the effect in dealing with emergency events in some use scenarios drops significantly and wastes time. Utility Model Content

[0009] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present utility model is to provide an adjustment structure for a spool, and the opening stroke of this adjustment structure is large and it is convenient to adjust the size of the water flow rate of the spool.

[0010] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0011] The utility model provides a valve core adjustment structure, which is used for adjusting the valve core shaft of the valve core to open or close the valve core. The adjustment structure includes a transmission component, which has an input end and an output end. The input end is used to receive the adjustment action and transmit the adjustment power to the output end. The output end is connected to the valve core shaft, and the valve core shaft is driven by the output end to rotate to open or close the valve core. The transmission ratio from the input end to the output end is a reduction transmission ratio.

[0012] Preferably, the transmission assembly includes a drive shaft, a gear and a follower, the follower is provided with gear teeth, the follower and the gear are meshed with each other through the gear teeth, the gear is mounted on the drive shaft, the follower is mounted on the valve core shaft, the drive shaft serves as the input end, and the follower serves as the output end.

[0013] Preferably, a knob or a handle is installed on the driving shaft, and the driving shaft is driven to rotate by rotating the knob or turning the handle.

[0014] Preferably, the transmission assembly includes a worm and a follower, the follower is provided with gear teeth, the follower meshes with the worm through the gear teeth, the follower is mounted on the valve core shaft, the worm serves as an input end, and the follower serves as an output end.

[0015] Preferably, the valve core includes a valve core shell and a top sealing block, the interior of the valve core shell is penetrated along the vertical axis to form a cavity, the top sealing block is arranged in the cavity and rotatably cooperates with the cavity wall at the top of the cavity, the interior of the top sealing block is penetrated along the vertical axis to form a through hole, a support rod is radially arranged in the through hole, the valve core shaft is passed through the through hole and can be rotatably arranged on the support rod around the support rod, the adjustment structure also includes a support member, the interior of the support member is hollow to form a accommodating cavity with at least one end open, the open end of the support member is connected to the top sealing block, the transmission assembly is placed in the accommodating cavity of the support member and the input end is rotatably passed through the support member.

[0016] Preferably, the top end of the top sealing block extends out of the valve core housing to form a protruding portion, and the support member is detachably connected to the protruding portion via a clamping structure.

[0017] Preferably, the adjustment structure also includes a protective shell, the interior of the protective shell is hollow to form a protective cavity which is open at one end and closed at the other end, the open end of the protective shell is connected to the valve core shell, the support member is accommodated in the protective cavity, and the input end of the transmission assembly is rotatably disposed through the protective shell.

[0018] Preferably, the protective shell includes an upper cover and a bottom shell. The bottom shell is hollow inside and has openings at both ends. One end of the bottom shell is connected to the valve core shell, and the other end of the bottom shell is connected to the upper cover and is closed by the upper cover. An avoidance groove for avoiding the input end is provided on the end surface where the upper cover and the bottom shell are connected.

[0019] The utility model also provides a water-saving valve, comprising the regulating structure of the valve core as described above.

[0020] The present utility model further provides a faucet, which includes the water-saving valve as described above.

[0021] Compared with the prior art, the present utility model has remarkable progress:

[0022] For the adjusting structure of the valve core of the present utility model, the adjusting action is received at the input end of the transmission component and the adjusting power is transmitted to the output end. After receiving the adjusting power, the output end of the transmission component can drive the valve core shaft to rotate to open or close the valve core, and the transmission ratio from the input end to the output end is a reduction transmission ratio. Thus, the stroke of the adjusting action to open the valve core through the adjusting structure is greater than the rotation stroke of the valve core shaft. Therefore, a smaller stroke of the valve core opening can be obtained through a larger-amplitude adjusting action, effectively solving the defect that it is difficult to control the water output flow rate of the current faucet due to the small rotation stroke of the valve core shaft, facilitating the adjustment and control of the water output flow rate according to the requirements of different usage scenarios, avoiding unnecessary waste of water resources caused by difficult control during use, and thus achieving the purpose of water conservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic external view of the valve core of the prior art.

[0024] Figure 2 is a schematic cross-sectional view of the valve core of the prior art.

[0025] Figure 3 is a schematic bottom view of the valve core of the prior art in the closed state.

[0026] Figure 4 is a schematic bottom view of the valve core of the prior art in the open state.

[0027] Figure 5 is a schematic bottom view of the valve core of the prior art after the valve core shaft rotates around the axial direction of the valve core by a certain angle.

[0028] Figure 6 is a schematic cross-sectional view of the faucet of the prior art in the closed state.

[0029] Figure 7 is a schematic cross-sectional view of the faucet of the prior art in the open state.

[0030] Figure 8 is a schematic external view of the faucet adopting the valve core and its adjusting structure of the first embodiment of the present utility model.

[0031] Figure 9 is Figure 8 an exploded schematic view of the faucet shown.

[0032] Figure 10 is a separated schematic view of the valve core and the follower of the first embodiment of the present utility model.

[0033] Figure 11 is Figure 8 a top view schematic diagram of the faucet shown

[0034] Figure 12 is Figure 11 a cross-sectional schematic diagram along the A-A direction in the closed state of the faucet

[0035] Figure 13 is Figure 11 a cross-sectional schematic diagram along the A-A direction in the open state of the faucet

[0036] Figure 14 is Figure 11 a cross-sectional schematic diagram along the B-B direction in

[0037] Figure 15 a perspective view schematic diagram of the faucet adopting the valve core and its adjustment structure of the second embodiment of the present utility model

[0038] Figure 16 is Figure 15 a cross-sectional schematic diagram of the faucet shown

[0039] Figure 17 a perspective view schematic diagram of the faucet adopting the valve core and its adjustment structure of the third embodiment of the present utility model

[0040] Figure 18 is Figure 17 an exploded schematic diagram of the faucet shown

[0041] Figure 19 is Figure 17 a cross-sectional schematic diagram of the faucet shown

[0042] Among them, the reference numerals are explained as follows:

[0043] 01 valve core

[0044] 01a valve core shaft

[0045] 010a first buckle

[0046] 01b support rod

[0047] 01c flow rate adjustment block

[0048] 010c groove

[0049] 01d first water inlet hole

[0050] 01e second water inlet hole

[0051] 01f water outlet hole

[0052] 01g top seal block

[0053] 010g Second buckle

[0054] 01h Bottom seal block

[0055] 01i Spool housing

[0056] 010i Step surface

[0057] 02 Faucet

[0058] 02a Handle

[0059] 02b Water supply pipe

[0060] 1 Adjusting structure

[0061] 10a Knob

[0062] 100a Identification part

[0063] 10b Gripping part

[0064] 12 Drive shaft

[0065] 13 Gear

[0066] 14 Bush

[0067] 15 Support part

[0068] 150 Second card slot

[0069] 151 Mounting hole

[0070] 152 Clamping hole

[0071] 16 Protective shell

[0072] 16a Upper cover

[0073] 160a Avoidance groove

[0074] 16b Bottom shell

[0075] 17 Driven part

[0076] 170 First card slot

[0077] 18 Worm

[0078] 180 Annular groove Specific embodiments

[0079] The following further elaborates on the specific embodiments of the present utility model in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model.

[0080] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0081] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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.

[0082] In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0083] Embodiment 1

[0084] As Figures 8 to 14 shown, it is the first embodiment of the adjustment structure of the valve core provided by the present utility model.

[0085] The adjusting structure 1 of the valve core in the first embodiment is used to adjust the valve core shaft 01a of the valve core 01 to open or close the valve core 01. The structure of the valve core 01 is basically the same as that of the valve core structure in the prior art. The valve core 01 includes a valve core housing 01i, a top sealing block 01g, a bottom sealing block 01h, a flow rate adjusting block 01c, and a valve core shaft 01a. A cavity is formed through the interior of the valve core housing 01i along the vertical axis. The top sealing block 01g is disposed in the cavity of the valve core housing 01i and is rotationally engaged with the cavity wall at the top end of the cavity. A through hole is formed through the interior of the top sealing block 01g along the vertical axis. The bottom sealing block 01h is disposed in the cavity of the valve core housing 01i and is sealingly engaged with the cavity wall at the bottom end of the cavity, and the bottom sealing block 01h is fixedly connected to the valve core housing 01i. A first water inlet hole 01d, a second water inlet hole 01e, and a water outlet hole 01f that penetrate vertically are formed in the bottom sealing block 01h. The flow rate adjusting block 01c is clamped between the bottom sealing block 01h and the top sealing block 01g, and a groove 010c is formed on the bottom surface of the flow rate adjusting block 01c. A through hole is formed through the interior of the top sealing block 01g along the vertical axis. A support rod 01b is disposed radially in the through hole. The valve core shaft 01a passes through the through hole of the top sealing block 01g and is rotatably disposed on the support rod 01b around the support rod 01b. The bottom end of the valve core shaft 01a is connected to the top surface of the flow rate adjusting block 01c, and the top end of the valve core shaft 01a extends beyond the top end of the cavity of the valve core housing 01i.

[0086] By applying the adjusting structure 1 to the top end of the valve core shaft 01a to cause the valve core shaft 01a to rotate around the support rod 01b or rotate around the vertical axis, the bottom end of the valve core shaft 01a can drive the flow rate adjusting block 01c to slide or rotate between the bottom sealing block 01h and the top sealing block 01g, so that the groove 010c communicates with one or more of the first water inlet hole 01d, the second water inlet hole 01e, and the water outlet hole 01f on the bottom sealing block 01h, thereby changing the state of the valve core 01, opening or closing the valve core 01, or adjusting the water flow rate or water temperature of the water outlet hole 01f of the valve core 01.

[0087] In the first embodiment, the adjusting structure 1 includes a transmission assembly. The transmission assembly has an input end and an output end. The input end is used to receive an adjusting action and transmit the adjusting power to the output end. The output end is connected to the valve core shaft 01a, and the output end drives the valve core shaft 01a to rotate to open or close the valve core 01. The transmission ratio from the input end to the output end is a reduction transmission ratio. The input end, as the starting point of the transmission assembly, is used to receive an external adjusting action. The adjusting action can be a manual operation or can be set as an automatic operation through a sensor, such as the rotation of a motor. The maximum stroke at the input end needs to match the maximum stroke at which the output end drives the valve core shaft 01a to rotate, so as to ensure that the valve core 01 can be fully opened or closed. The output end, as the end point of the transmission assembly, is preferably directly connected to the valve core shaft 01a to ensure that the power transmitted to the output end can more effectively drive the valve core shaft 01a to rotate. The output end can be connected to the valve core shaft 01a by any one of forms such as snap-fastening and slot locking, threaded connection, pin connection, etc. Or, the output end can also be integrally formed with the valve core shaft 01a. The output end and the valve core shaft 01a have sufficient connection strength to withstand the axial and radial loads and stresses generated by the transmission assembly. The reduction transmission ratio can be achieved between the input end and the output end by any one of forms such as gears, worm gears, belt drives, etc., and the size of the reduction ratio is determined according to the requirements of actual applications.

[0088] Thus, the stroke of the adjusting action to open the valve core 01 through the adjusting structure 1 is greater than the rotation stroke of the valve core shaft 01a. Therefore, a smaller opening stroke of the valve core 01 can be obtained through a larger adjusting action, effectively solving the defect that it is difficult to control the water flow rate of the current faucet 02 due to the small rotation stroke of the valve core shaft 01a, facilitating the adjustment and control of the water flow rate according to the requirements of different usage scenarios, avoiding unnecessary waste of water resources caused by difficult control during use, and thus achieving the purpose of water conservation.

[0089] Preferably, a marking portion 100a for displaying the action amplitude of the input end is provided on the transmission assembly of the adjusting structure 1. By observing the marking portion 100a, the action amplitude of the input end can be intuitively judged. Different action amplitudes of the input end correspond to different rotation angles of the valve core shaft 01a in different states, so as to be able to understand the current position of the valve core shaft 01a and the opening state of the valve core 01.

[0090] See Figure 9 、 Figure 10 and Figure 14, in the first embodiment, preferably, the transmission assembly includes a drive shaft 12, a gear 13 and a driven member 17. The driven member 17 is provided with teeth, and the driven member 17 meshes with the gear 13 through the teeth. The gear 13 is mounted on the drive shaft 12, and the driven member 17 is mounted on the valve core shaft 01a. The drive shaft 12 serves as the input end, and the driven member 17 serves as the output end. After receiving the adjustment action, the drive shaft 12 rotates, driving the gear 13 to rotate synchronously. The gear 13 then drives the driven member 17 to rotate through the meshing between the teeth. Since the driven member 17 is mounted on the valve core shaft 01a, the driven member 17 drives the valve core shaft 01a to rotate correspondingly around the support rod 01b. Therefore, rotating the drive shaft 12 clockwise or counterclockwise around the central axis of the drive shaft 12 can open or close the valve core 01. Further, by changing the ratio of the number of teeth between the gear 13 and the driven member 17, the speed of the gear 13 is reduced when transmitting power to the driven member 17, so that the rotation angle of the drive shaft 12 can be greater than the rotation angle of the valve core shaft 01a. That is, when the drive shaft 12 is rotated by a large angle, the corresponding rotation angle of the valve core shaft 01 is small, which means that a small opening stroke of the valve core 01 can be obtained through a large adjustment action.

[0091] The drive shaft 12 is a round rod with a certain length, and its diameter and length are determined according to the load capacity and operation convenience required in actual situations. In addition, the cross-section of the drive shaft 12 can also be designed as a polygon or other shapes, so that the drive shaft 12 bears a certain resistance when rotating to achieve the effect of gear shifting adjustment.

[0092] The gear 13 can be fixed to the drive shaft 12 by any one of key connection, fastening screws, interference fit and welding, or the gear 13 can also be integrally formed with the drive shaft 12 to ensure that the two remain relatively fixed so that the gear 13 can rotate synchronously with the drive shaft 12 when the drive shaft 12 rotates. At the same time, the central axis of the gear 13 is aligned with the central axis of the drive shaft 12 to ensure that the gear rotates smoothly and without vibration.

[0093] In a preferred embodiment, the top end of the valve core shaft 01a extends beyond the top end of the cavity of the valve core housing 01i. On two opposite side walls of the top end of the valve core shaft 01a, there are first buckles 010a. The inside of the driven member 17 is hollow to form a cavity with one end open, and on two opposite side walls of the cavity, there are first slots 170. During installation, the open end of the driven member 17 is buckled on the top end of the valve core shaft 01a, and the first buckles 010a are engaged with the first slots 170, so that a quick and reliable fixed connection is achieved between the driven member 17 and the valve core shaft 01a. In other embodiments, the driven member 17 can also be installed on the valve core shaft 01a by means of fastening screws or interference fit, etc., for easy installation and disassembly.

[0094] The teeth on the follower 17 are provided on the end face of the follower 17 away from the top end of the valve core shaft 01a. One end of the follower 17 with teeth can be regarded as an arc segment gear, which is a part of a complete gear circumference with the central axis coinciding with the central axis of the support rod 01b, so that the follower 17 can drive the valve core shaft 01a to rotate around the support rod 01b as the center of the circle, realizing the motion conversion in a limited space. Further, in order to realize that when the drive shaft 12 rotates at least one week, the valve core 01 is opened to the maximum state, the number of teeth on the follower 17 is equal to or greater than the number of teeth on the gear 13.

[0095] In the first embodiment, preferably, a knob 10a is installed on the drive shaft 12, and the drive shaft 12 is rotated by rotating the knob 10a. When the valve core shaft 01a drives the flow regulating block 01c to rotate, it bears a continuous resistance, so that when the valve core shaft 01a rotates to a certain position, even without the action of an external continuous force, it can remain in that position and will not shift due to vibration or other external factors. Therefore, when the drive shaft 12 and the gear 13 drive the follower 17 and the valve core shaft 01a to rotate, the drive shaft 12 also bears a large resistance. The knob 10a is a cylinder with a diameter larger than that of the drive shaft 12 and is coaxially and fixedly arranged with the drive shaft 12 during installation. The knob 10a can also be designed into other shapes to facilitate the operator to apply force to the knob 10a to drive the drive shaft 12 to rotate. The knob 10a provides a longer force arm (the distance from the outer wall surface of the knob 10a to the axis of the drive shaft 12), enabling the operator to use a smaller force to rotate the drive shaft 12, reducing the force required for operation; at the same time, it also provides a larger contact area, making the operator feel more comfortable when rotating and reducing hand fatigue. Preferably, the marking part 100a is a plurality of marking grooves arranged circumferentially on the knob 10a with lengths increasing from short to long. The longer the length of the marking groove, the larger the rotation angle of the knob 10a, and the corresponding rotation angle of the valve core shaft 01a and the opening degree of the valve core 01 are also larger. Further, knobs 10a are provided at both ends of the drive shaft 12, enabling the operator to rotate the drive shaft 12 from either end of the drive shaft 12, improving the operation flexibility.

[0096] In the first embodiment, preferably, the adjusting structure 1 further includes a support member 15. The interior of the support member 15 is hollow to form a receiving cavity with at least one open end. The open end of the support member 15 is connected to the top sealing block 01g. The transmission assembly is placed in the receiving cavity of the support member 15 and its input end is rotatably passed through the support member 15. In the first embodiment, the driving shaft 12 of the transmission assembly is rotatably passed through the support member 15, and the gear 13 and the driven member 17 are both placed in the receiving cavity of the support member 15. After the support member 15 is connected to the top sealing block 01g, the part of the valve core shaft 01a extending beyond the top end of the cavity of the valve core housing 01i is placed in the receiving cavity of the support member 15. And when the driven member 17 drives the valve core shaft 01a to rotate so that the valve core 01 moves from the closed position to the maximum opening position, the support member 15 does not interfere with the rotation of the valve core shaft 01a and the driven member 17. The overall shape of the support member 15 in the first embodiment is a cylinder, and the diameter and height of the cylinder can be designed according to the specific structure and dimensions of the valve core 01 and the transmission assembly to ensure that the support member 15 does not interfere with the installation of the valve core 01 and provides enough space to accommodate the transmission assembly. Preferably, the receiving cavity inside the support member 15 radially penetrates the support member 15 along the direction tangent to the rotation direction of the valve core shaft 01a around the support rod 01b, so that the receiving cavity is a U-shaped cavity, thereby avoiding the rotation of the driven member 17 and the valve core shaft 01a around the support rod 01b and ensuring that the support member 15 does not interfere with the rotation of the valve core shaft 01a and the driven member 17.

[0097] In the first embodiment, the driving shaft 12, which is the input end of the transmission assembly, is passed through the support member 15 along the radial direction of the valve core 01. The support member 15 is connected to the top sealing block 01g. A support rod 01b is provided radially in the through hole of the top sealing block 01g. The support rod 01b is arranged parallel to the driving shaft 12. The valve core shaft 01a is rotatably arranged on the support rod 01b. The bottom end of the valve core shaft 01a is connected to the top surface of the flow rate adjusting block 01c. Thus, the driving shaft 12, the support member 15, the top sealing block 01g, the support rod 01b and the flow rate adjusting block 01c are connected to each other to form a unified whole that works together. When the driving shaft 12 is rotated around the vertical axis of the valve core 01, the flow rate adjusting block 01c rotates synchronously to realize the water temperature adjustment of the valve core 01.

[0098] See Figure 9 、 Figure 10 and Figure 14, preferably, in the spool 01 structure of the first embodiment, the top end of the top sealing block 01g extends out of the spool housing 01i to form a protruding part, so as to facilitate the connection of the support member 15. The support member 15 is detachably connected to the protruding part at the top end of the top sealing block 01g through a clamping structure. The form of the clamping structure is not limited. Preferably, second clamping grooves 150 are symmetrically arranged on the two inner side walls opposite to one end of the opening of the U-shaped cavity of the support member 15. The protruding part of the top sealing block 01g is inserted into the U-shaped cavity, and two second clamping buckles 010g are arranged on the outer wall of the protruding part corresponding to the two second clamping grooves 150. The two second clamping buckles 010g are clamped with the two second clamping grooves 150 one by one, so that the support member 15 and the top sealing block 01g are relatively fixed.

[0099] Further, in the first embodiment, the drive shaft 12, which is the input end of the transmission component, is rotatably inserted through the support member 15 along the direction perpendicular to the two inner side walls of the U-shaped cavity of the support member 15. The support member 15 is provided with a mounting hole 151 for the drive shaft 12 to pass through. Preferably, both ends of the drive shaft 12 pass through the support member 15, so two mounting holes 151 are correspondingly arranged on the support member 15, and are rotatably matched with the two ends of the drive shaft 12 respectively. To facilitate the installation of the gear 13, the inner diameter of at least one of the two mounting holes 151 is larger than the outer diameter of the gear 13, so that the gear 13 can enter the U-shaped cavity along with the drive shaft 12 through this mounting hole 151. The mounting hole 151 and the drive shaft 12 are rotatably connected through a bushing 14. Specifically, the bushing 14 is fixedly connected to the mounting hole 151. Preferably, the bushing 14 and the mounting hole 151 are connected through a threaded fit. The drive shaft 12 is rotatably inserted through the bushing 14, so that the gear 13 and the drive shaft 12 are positioned on the support member 15 and can rotate stably. Thus, it is convenient for the installation and subsequent maintenance and disassembly of the transmission component.

[0100] Further, teeth can also be directly formed on the outer wall of the drive shaft 12, and the drive shaft 12 is directly meshed with the driven member 17 through the teeth provided on itself. By directly meshing the drive shaft 12 with the driven member 17, the number of components required for the adjusting structure 1 is reduced, the friction and energy loss during the transmission process are reduced, and at the same time, the maintenance cost and complexity are also reduced.

[0101] In the first embodiment, preferably, the adjusting structure 1 further includes a protective housing 16. The interior of the protective housing 16 is hollow to form a protective cavity that is open at one end and closed at the other end. The open end of the protective housing 16 is connected to the valve core housing 01i. The support member 15 is accommodated in the protective cavity. And the drive shaft 12, which is the input end of the transmission assembly, is rotatably passed through the protective housing 16. To facilitate the operator to rotate the drive shaft 12, the knob 10a is located outside the protective housing 16. Therefore, both ends of the drive shaft 12 extend out of the protective housing 16 to install the knob 10a. By providing the protective housing 16, a closed space is provided for the transmission assembly, isolating the transmission assembly from the external environment and preventing the intrusion of dust and other pollutants; the protective housing 16 effectively prevents moisture from entering and protects the transmission assembly from being eroded by a humid environment, thereby avoiding rusting and functional degradation caused by humidity; when subjected to physical impact or vibration, the protective housing 16 can absorb and mitigate these external forces, reducing potential damage to the internal transmission assembly.

[0102] See Figure 8 , Figure 9 , Figure 12 and Figure 13 , preferably, the protective housing 16 includes an upper cover 16a and a bottom shell 16b. The interior of the bottom shell 16b is hollow and both ends are through to form an opening. One end of the bottom shell 16b is connected to the valve core housing 01i. The other end of the bottom shell 16b is connected to the upper cover 16a and is closed by the upper cover 16a. An avoidance groove 160a is provided on the end face where the upper cover 16a and the bottom shell 16b are butted. The avoidance groove 160a is used to avoid the input end (drive shaft 12) of the transmission assembly, so as to facilitate the drive shaft 12 to be rotatably passed through the protective housing 16 by assembling the upper cover 16a and the bottom shell 16b.

[0103] In the first embodiment, the accommodating cavity inside the support member 15 is open at one end and closed at the other end. The upper cover 16a is fixedly connected to the closed end of the support member 15 by screws. When the drive shaft 12 is rotated around the vertical axis of the valve core 01, the position of the bottom shell 16b remains unchanged, and the upper cover 16a and the support member 15 rotate together with the drive shaft 12.

[0104] When in use, the regulating structure 1 of the valve core is assembled with the valve core 01, and the valve core 01 is installed in the faucet. During assembly, firstly, the follower 17 is installed on the valve core shaft 01a of the valve core 01, and the valve core 01 is installed inside the faucet 02. The first water inlet hole 01d and the second water inlet hole 01e are respectively connected to two independent water supply pipes 02b (respectively, a cold water pipe and a hot water pipe), and the water outlet hole 01f is connected to the inner cavity of the faucet 02. Then, the bottom shell 16b is fixedly connected to the outer shell of the faucet 02, and the bottom shell 16b presses the top of the valve core outer shell 01i to position the valve core 01 inside the faucet 02. Preferably, the bottom shell 16b is threadedly connected to the outer shell of the faucet 02. Then, the support member 15 equipped with the gear 13 and the drive shaft 12 is inserted into the bottom shell 16b and the protruding part of the top sealing block 01g is inserted into the U-shaped cavity of the support member 15. The support member 15 is connected with the second snap 010g of the top sealing block 01g through the second snap groove 150 to achieve relative fixation with the valve core 01, and the drive shaft 12 is located above the bottom shell 16b. Finally, the upper cover 16a is docked with the bottom shell 16b, and the two ends of the drive shaft 12 pass through the avoidance groove 160a to the outside of the upper cover 16a, and the knob 10a is fixedly installed on the two ends of the drive shaft 12. The upper cover 16a is fixedly connected with the closed end of the support member 15 by screws.

[0105] Embodiment 2

[0106] like Figure 15 and Figure 16 As shown, it is the second embodiment of the valve core adjustment structure provided by the utility model. The second embodiment is basically the same as the first embodiment, and the similarities are not repeated here. The difference is that in the second embodiment, a handle 10b is installed on the drive shaft 12 in the valve core adjustment structure 1, and the handle 10b replaces the knob 10a, and the drive shaft 12 is driven to rotate by turning the handle 10b. The handle 10b has an arc segment fixedly connected to both ends of the drive shaft 12, and the handle 10b extends from the arc segment in a direction away from the drive shaft 12 along the arc segment perpendicular to the radial direction of the drive shaft 12 to form a long handle. The operator can turn the handle 10b by holding the end of the long handle, thereby driving the drive shaft 12 to rotate. Compared with the first embodiment in which the knobs 10a are fixedly connected at both ends of the drive shaft 12, the end of the long handle of the handle 10b is used as the force application point, and the distance from the force application point to the axis of the drive shaft 12 is increased, that is, the force arm of the drive shaft 12 is further increased, so that the operator needs to apply less force when rotating the drive shaft 12, and the operation is easier. In addition, the long handle of the handle 10b provides a surface that is more suitable for handholding and operation, improving the overall control experience, and improving the convenience and controllability of operation.

[0107] Further, when driving the drive shaft 12 to rotate by the holding member 10b, for the convenience of operation, when the valve core 01 is in the state from closed to fully opened, the corresponding state of the holding member 10b is to rotate around the drive shaft 12 from one side of the valve core 01 to the other side. Correspondingly, the gear 13 rotates about 180°. In the first embodiment, when the valve core 01 is opened to the maximum state, the gear 13 needs to rotate at least one week. When the structural dimensions of the driven member 17 are the same, the outer diameter of the gear 13 in the second embodiment is approximately twice that of the gear 13 in the first embodiment.

[0108] Embodiment Three

[0109] As Figures 17 to 19 shown, it is the third embodiment of the regulating structure of the valve core provided by the present utility model. Embodiment Three is basically the same as Embodiment One, and the same parts will not be described again. The differences are that in this Embodiment Three, the transmission assembly includes a worm 18 and a driven member 17. The driven member 17 is provided with teeth, and the driven member 17 meshes with the worm 18 through the teeth. The driven member 17 is installed on the valve core shaft 01a. The worm 18 is used as the input end instead of the drive shaft 12, and the driven member 17 is used as the output end. The worm 18 directly meshes with the driven member 17, and there is no need to set the gear 13, which can simplify the structure and save the structural layout space. The worm 18 is horizontally arranged and perpendicular to the support rod 01b. When installing the support member 15 on the valve core 01, the worm 18 passes through the two through openings on both sides of the U-shaped cavity of the support member 15 and is arranged between the opposite side walls of the U-shaped cavity. Preferably, annular grooves 180 are opened on both sides of the spiral teeth of the worm 18, and clamping holes 152 are opened on the bottom walls of the two through openings on both sides of the U-shaped cavity of the support member 15. The worm 18 is rotatably embedded in the clamping holes 152 through the annular grooves 180. Thus, the support member 15 limits the worm 18 in the axial direction of the worm 18, and the worm 18 can stably maintain the meshing state with the driven member 17, thereby driving the valve core shaft 01 to rotate to open or close the valve core 01. In addition, when rotating the worm 18 around the vertical axis of the valve core 01, since the worm 18 is clamped and matched with the clamping holes 152 of the support member 15, the support member 15 also rotates accordingly. Therefore, the top seal block 01g, the valve core shaft 01a, and the flow regulating block 01c also rotate around the vertical axis of the valve core 01 correspondingly to achieve water temperature regulation.

[0110] Further, for the convenience of adjustment, a knob 10a can be installed at one end or both ends of the worm 18 extending out of the protective shell 16, and rotating the knob 10a drives the worm 18 to rotate; a transmission rod with a certain length can also be provided at the end of the worm 18. The transmission rod is fixedly connected with the worm 18 and the central axis of the transmission rod is perpendicular to the central axis of the worm 18. Thus, by acting on the end of the transmission rod, the worm 18 is driven to rotate synchronously, further increasing the distance from the force application point to the central axis of the worm 18, making it more labor-saving to open the valve core 01.

[0111] Thus, when the worm 18 drives the driven member 17 and the valve core shaft 01a to rotate, the transmission ratio between the worm 18 and the driven member 17 depends on the ratio of the number of spiral teeth of the worm 18 to the teeth on the driven member 17. Since the worm 18 usually has only a few spiral teeth, setting the worm 18 to drive the driven member 17 can obtain a large reduction transmission ratio. When the worm 18 rotates one circle, the driven member 17 and the valve core shaft 01a rotate a small angle around the support rod 01b, thereby further improving the adjustment accuracy of the adjustment structure 1.

[0112] Embodiment Four

[0113] Based on the adjustment structure of the valve core of the present invention, Embodiment Four provides an embodiment of the water-saving valve of the present invention. The water-saving valve of this Embodiment Four includes the adjustment structure of the valve core of the present invention, and the adjustment structure of the valve core can be any one of the adjustment structures 1 of the valve core described in the above Embodiments One to Three. The water-saving valve of this Embodiment Four further includes a valve core 01. The adjustment structure 1 is assembled with the valve core 01. By acting on the top end of the valve core shaft 01a, the valve core shaft 01a rotates around the support rod 01b or rotates around the vertical axis, which can change the state of the valve core 01, open or close the valve core 01, or adjust the water flow rate or water temperature of the water outlet hole 01f of the valve core 01.

[0114] Embodiment Five

[0115] Based on the water-saving valve of the present invention, Embodiment Five provides an embodiment of the faucet of the present invention. The faucet of this Embodiment Five includes the water-saving valve of the present invention, and the water-saving valve can be any one of the water-saving valves described in the above Embodiment Four.

[0116] The application field of the faucet of this Embodiment Five is not limited and can be used in any scenario where a water-saving valve needs to be set, such as scenarios where a water-saving valve needs to be set on a kitchen faucet or a shower faucet, etc.

[0117] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A valve core adjustment structure, used for adjusting a valve core shaft (01a) of a valve core (01) to open or close the valve core (01), characterized in that: The regulating structure (1) comprises a transmission component, wherein the transmission component has an input end and an output end, wherein the input end is used to receive a regulating action and transmit a regulating power to the output end, wherein the output end is connected to the valve core shaft (01a), and the valve core shaft (01a) is driven by the output end to rotate to open or close the valve core (01), and the transmission ratio from the input end to the output end is a reduction transmission ratio.

2. The valve core adjustment structure according to claim 1, characterized in that: The transmission assembly comprises a drive shaft (12), a gear (13) and a driven member (17); the driven member (17) is provided with gear teeth, the driven member (17) and the gear (13) are meshed with each other through the gear teeth; the gear (13) is mounted on the drive shaft (12), the driven member (17) is mounted on the valve core shaft (01a), the drive shaft (12) serves as the input end, and the driven member (17) serves as the output end.

3. The valve core adjustment structure according to claim 2, characterized in that: A knob (10a) or a handle (10b) is mounted on the driving shaft (12), and the driving shaft (12) is driven to rotate by rotating the knob (10a) or moving the handle (10b).

4. The valve core adjustment structure according to claim 1, characterized in that: The transmission assembly comprises a worm (18) and a follower (17), wherein the follower (17) is provided with gear teeth, and the follower (17) is meshed with the worm (18) via the gear teeth. The follower (17) is mounted on the valve core shaft (01a), and the worm (18) serves as the input end, and the follower (17) serves as the output end.

5. The valve core adjustment structure according to claim 1, characterized in that: The valve core (01) includes a valve core shell (01i) and a top sealing block (01g), the interior of the valve core shell (01i) is penetrated along the vertical axis to form a cavity, the top sealing block (01g) is arranged in the cavity and rotatably cooperates with the cavity wall at the top of the cavity, the interior of the top sealing block (01g) is penetrated along the vertical axis to form a through hole, a support rod (01b) is radially arranged in the through hole, the valve core shaft (01a) is penetrated in the through hole and can be rotatably arranged on the support rod (01b) around the support rod (01b), the adjustment structure (1) also includes a support member (15), the support member (15) is hollow inside to form a accommodating cavity with at least one end open, the open end of the support member (15) is connected to the top sealing block (01g), the transmission assembly is placed in the accommodating cavity of the support member (15) and the input end is rotatably penetrated in the support member (15).

6. The valve core adjustment structure according to claim 5, characterized in that: The top end of the top sealing block (01g) extends out of the valve core housing (01i) to form a protruding portion, and the support member (15) is detachably connected to the protruding portion via a snap-fit ​​structure.

7. The valve core adjustment structure according to claim 5, characterized in that: The regulating structure (1) further comprises a protective shell (16), the interior of the protective shell (16) being hollow to form a protective cavity which is open at one end and closed at the other end, the open end of the protective shell (16) being connected to the valve core housing (01i), the support member (15) being accommodated in the protective cavity, and the input end of the transmission assembly being rotatably disposed through the protective shell (16).

8. The valve core adjustment structure according to claim 7, characterized in that: The protective shell (16) comprises an upper cover (16a) and a bottom shell (16b); the bottom shell (16b) is hollow inside and has two ends through which openings are formed; one end of the bottom shell (16b) is connected to the valve core housing (01i); the other end of the bottom shell (16b) is connected to the upper cover (16a) and is closed by the upper cover (16a); and an avoidance groove (160a) for avoiding the input end is provided on the end surface where the upper cover (16a) and the bottom shell (16b) are connected.

9. A water-saving valve, characterized in that: A regulating structure comprising a valve core as claimed in any one of claims 1 to 8.

10. A faucet, characterized in that: Comprising the water-saving valve as claimed in claim 9.

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