Valve body for controlling opening, closing and size of water flow and using method thereof

Abstract

The invention provides a valve body for controlling opening, closing and magnitude of water flow and a using method of the valve body. The valve body comprises a valve rod with one end extending into the valve body, an axial movement path and a radial rotation freedom degree, and axial pressing: driving a cut-off structure to move downwards and triggering the cut-off structure to switch a waterway state; the valve element is linked, and the water flow is adjusted; the valve core is linked with the radial rotation of the valve rod so as to adjust the water flow; and the cut-off structure is arranged in the valve body, and the opening and closing states of the cut-off structure on the water inlet or the water outlet or a passage between the water inlet and the water outlet are switched through axial pressing of the valve rod. The problems that according to a traditional solution, the product structure is enlarged, the sealing face is increased, and operation is inconvenient are solved. Belongs to the field of flow control.

Description

Technical Field

[0001] The invention relates to a valve body for controlling the opening and closing and size of water flow and a use method thereof, belonging to the field of flow control. Background Art

[0002] The existing water flow control valve bodies on the market adjust the water flow size or opening and closing by rotating the angle. From the structural point of view, they can be divided into ball valves, gate valves, needle valves, etc., and from the application scenario, they can be divided into stop valves, flow regulating valves, flow limiting valves, etc., all of which control the opening and closing of water flow by rotating the valve core and the seal of the end face. After each rotation of the valve core, the opening and position of the next opening must be different from the previous one. When the user prefers a certain water flow size, each rotation opening and closing requires the user to readjust to the appropriate flow.

[0003] To solve this problem, some products will add a stop valve at the front or back end of the valve body to address this shortcoming. The flow rate is controlled by the flow regulating valve, and the water flow is turned on and off by the stop valve. In this case, 1) the structure and size of the product will be increased; 2) the sealing surface and connection of the product will be increased, which increases the risk of water leakage; 3) the cost will increase, and two components will be required to complete the control; 4) the complexity of the operation will increase, especially when the two valve bodies are far apart. Summary of the invention

[0004] The present invention provides a valve body for controlling the opening and closing and size of water flow and a method for using the valve body to solve the problems that traditional solutions lead to an increase in product structure, an increase in sealing surfaces, and inconvenience in operation.

[0005] In order to solve the above problems, it is proposed to adopt a valve body for controlling the opening and closing and size of water flow, including:

[0006] The valve stem, one end of which extends into the valve body, has an axial motion path and radial rotation freedom. Axial pressing: drives the cut-off structure to move downward, triggering the cut-off structure to switch the water path state; radial rotation: links the valve core to adjust the water flow;

[0007] The valve core is linked with the radial rotation of the valve stem to adjust the water flow;

[0008] The cut-off structure is placed in the valve body, and the cut-off structure switches the opening and closing state of the water inlet or the water outlet or the passage between the water inlet and the water outlet through axial pressing of the valve stem.

[0009] In a possible implementation, the cutoff structure includes:

[0010] A lower push rod is coaxial with the valve stem and is disposed at one end of the valve stem. A steering wheel is disposed on the upper portion of the lower push rod. The steering wheel has limited position steering rods evenly distributed along the circumference. Adjustment helical teeth with tooth tips pointing downward are distributed on the lower side of the steering wheel along the circumference of the lower push rod.

[0011] The sleeve is sleeved on the lower end of the lower ejector rod. The lower end of the sleeve is fixed on the valve body. The upper end is provided with a steering matching portion that matches the position-adjusting bevel gear along the circumferential direction. The sleeve provides a tangential force to rotate the lower ejector rod to a specific angle when the lower ejector rod moves downward, so that the limit rudder bar enters the axial projection range of the boss. The rotation angle of the lower ejector rod after each downward movement can be controlled by controlling the tooth pitch.

[0012] The spring is sleeved on the lower ejector rod and the sleeve, with one end of the spring pressed against the inner wall of the valve body and the other end pressed against the upper end of the lower ejector rod, so as to provide a rebound force for the lower ejector rod to move upward;

[0013] The boss is fixed on the upper wall of the valve body along the circumferential distribution of the lower push rod. When the lower push rod is at the upper initial position, the boss is respectively located between two adjacent limit rudder rods. The two ends of the boss along the circumferential direction have oblique teeth with the tip facing downward, which provide tangential force for the limit rudder rod to rotate the lower push rod to a specific angle when the limit rudder rod moves upward. When the limit rudder rod enters the projection range of the oblique teeth at the front end of the boss along the axial direction of the push rod and is reset by the rebound force of the spring, the oblique teeth provide tangential force for the limit rudder rod to rotate again in the direction of rotation when it moves downward, so that it is stuck in the table surface between the oblique teeth at both ends of the boss, so as to realize the boss limitation of the lower push rod;

[0014] The water stop end is fixedly connected or linked with the lower push rod, and switches the opening and closing state of the water inlet or the water outlet or the passage between the water inlet and the water outlet with the resetting of the lower push rod and the limit switching of the boss.

[0015] In another possible implementation, the cutoff structure includes:

[0016] The spring is coaxial with the lower ejector rod and is pressed between the lower ejector rod and the valve body to provide a rebound force for the lower ejector rod;

[0017] The lower ejector rod is coaxial with the valve stem and is disposed at the one end of the valve stem, the other end of the lower ejector rod penetrates and extends to the outside of the valve body, and the outside of the valve body has a limiting portion for limiting the other end of the lower ejector rod; further preferably, the other end of the lower ejector rod has a limitable portion, which can be a slot or a limit convex head, etc., and the limit portion limits the other end of the lower ejector rod by clamping the slot or the limit convex head;

[0018] The water stop end is fixedly connected or linked with the lower push rod, and switches the opening and closing state of the water inlet or the water outlet or the passage between the water inlet and the water outlet with the resetting of the lower push rod and the limit switching of the boss.

[0019] In a third possible implementation manner, the cutoff structure includes:

[0020] The lower push rod is coaxial with the valve stem and is disposed at the one end of the valve stem. A steering wheel is disposed on the upper part of the lower push rod. The steering wheel is evenly distributed with limited rudders along the circumferential direction. An oblique tooth groove is opened on the inner wall of the valve body along the circumferential direction. The oblique tooth groove forms an oblique tooth structure distributed along the circumferential direction on the inner wall of the valve body on the upper side of the groove body. A rudder groove is opened between two adjacent oblique tooth structures. The limited rudders are sequentially spaced and clamped in the rudder grooves. The rudder grooves are opened in a staggered manner along the circumferential direction. The depth refers to the opening depth along the axial direction of the valve stem.

[0021] A spring is coaxial with the lower ejector rod and is pressed between the lower ejector rod and the valve body;

[0022] The water stop end is fixedly connected or linked with the lower push rod, rotates in the circumferential direction under the push of the valve stem and the return thrust of the spring, and reciprocates in the axial direction. When the limit rudder bar is respectively stuck in the deep and shallow rudder bar grooves, the water stop end closes and opens the passage between the water inlet and the water outlet.

[0023] In a possible implementation, one end of the valve stem drives the cut-off structure to open and close the passage between the water inlet and the water outlet through axial pressing movement. The valve body is divided into two upper and lower cavities by a partition. One end of the valve stem extends from top to bottom into the upper cavity, and the valve core is placed in the upper cavity and is linked to the radial rotation of the valve stem. The lower push rod is located in the lower cavity, and the partition is located between the valve core and the lower push rod. A passage for the valve stem to pass through and water to flow through is opened on the partition. The water stop end is a plug structure fixed to the upper end of the lower push rod and corresponding to the passage. When the lower push rod is pressed down or limited by the upper limiting boss of the push rod, the water stop end disengages from the passage and the passage is opened. When the lower push rod disengages from the upper limiting boss of the push rod and resets to the upper initial position, the water stop end blocks the passage and the passage is closed.

[0024] In one possible implementation, the water stop end is a sliding plug fixed on the lower push rod or linked with the lower push rod for opening and closing the water inlet or water outlet; when the lower push rod is pressed down or limited by the upper limiting boss of the push rod, the water stop end disengages from the water inlet or water outlet, and the water inlet or water outlet opens; when the lower push rod disengages from the upper limiting boss of the push rod and resets to the upper initial position, the water stop end blocks the water inlet or water outlet, and the water inlet or water outlet is closed.

[0025] In a possible implementation, the valve core is arranged opposite to the water outlet and is used to adjust the water flow size of the water outlet, and the cut-off structure is used to open and close the water inlet or the passage between the water inlet and the water outlet.

[0026] In one possible implementation, a gradient groove is provided on the outer ring surface of the valve core, a water outlet hole is provided at the wide end of the gradient groove, and the water outlet is provided on the valve body at the outer ring surface directly opposite the valve core. The valve core is rotated to adjust the connecting cross-sectional area between the gradient groove and the water outlet, thereby adjusting the size of the water flow entering the water outlet through the water outlet hole and the gradient groove in sequence.

[0027] In a possible implementation, one end of the valve stem axially penetrates the valve core, the valve core is provided with a slot axially, and a fin is provided on the outer wall of the valve stem and is inserted into the slot, so that the valve stem and the valve core are radially rotated in linkage.

[0028] In one possible implementation, the tooth surface on one side of the adjusting bevel tooth is parallel to the axial direction of the lower push rod, and the tooth surface on the other side is a bevel. The steering matching part is a bevel tooth structure opened circumferentially at the upper end of the sleeve, and the bevel tooth structure matches the adjusting bevel tooth, that is, when the lower push rod moves down to the extreme position, the steering matching part meshes with the adjusting bevel tooth, and the tooth surface fits together. This design makes the tooth surface more evenly stressed.

[0029] The present invention also provides a method for using the valve body, which specifically includes:

[0030] 1) Control of water flow opening and closing: Before the water flow is turned on, the cut-off structure closes the water inlet or water outlet or the passage between the water inlet and the water outlet, and the water flow is turned off. At this time, the valve stem is pressed down and the cut-off structure is triggered, and the cut-off structure is switched to open the water inlet or water outlet or the passage between the water inlet and the water outlet; the valve stem is pressed down again, and the valve stem triggers the cut-off structure again, and the cut-off structure is switched to close the water inlet or water outlet or the passage between the water inlet and the water outlet;

[0031] 2) Control of water flow: The rotation of the valve stem drives the valve core to change the opening, which is independent of the control of the water flow opening and closing, thereby achieving the adjustment of the water flow.

[0032] The present invention also provides a method for using the valve body having the first cut-off structure, which specifically includes:

[0033] 1) Control of water flow opening and closing:

[0034] Before the water flow is turned on, the limit rudder of the lower push rod is located between the bosses, and the lower push rod is in the initial state. At this time, the water stop end closes the water inlet or the water outlet or the passage between the water inlet and the water outlet, and the water flow is closed;

[0035] a) Water flow is turned on

[0036] Pressing the valve stem downward pushes the lower push rod to move downward, and the lower push rod rotates a specific angle under the cooperation of the adjusting bevel gear and the steering matching part, so that the limiting rudder bar enters the projection range of the bevel gear at the front end of the boss along the axial direction of the push rod, and the valve stem is released. The lower push rod moves upward under the action of the spring, and the limiting rudder bar rotates again under the action of the bevel gear at the front end of the boss, and falls on the table surface between the bevel gears at both ends of the boss, so that the lower push rod is limited along the axial direction and cannot return to the axial position of the initial state. At this time, the water stop end opens the water inlet or water outlet or the passage between the water inlet and the water outlet, and the water flow is turned on;

[0037] b) Water flow shut off

[0038] After the water flow is turned on, the valve stem is pressed downward again to push the lower push rod downward. The lower push rod rotates again to a specific angle under the cooperation of the adjusting bevel teeth and the steering matching part, so that the limiting rudder bar enters the projection range of the bevel teeth at the rear end of the boss along the axial direction of the push rod. The valve stem is released, and the lower push rod moves up again under the action of the spring. The limiting rudder bar rotates in the same direction again under the action of the bevel teeth at the rear end of the boss and disengages from the boss. The lower push rod disengages from the limit of the boss to complete the axial reset. At this time, the water stop end is reset and closes the water inlet or water outlet or the passage between the water inlet and the water outlet, and the water flow is closed.

[0039] 2) Control of water flow:

[0040] The rotation of the valve stem drives the valve core to change the opening, which is independent of the control of the water flow opening and closing, thereby achieving the adjustment of the water flow size.

[0041] Compared with the prior art, the present invention combines the cut-off structure controlled by axial pressing on the basis of the existing valve body, and can realize the separate control of the water flow opening and opening and closing in the same valve body, and can ensure that the opening and closing of the water flow can be controlled when the valve body opening is exactly the same each time; compared with the existing valve body structure, it can make full use of the valve body space, and the overall structure is more compact, and it has better adaptability when used as a component of other products; it reduces the current situation that two valves are needed to control the opening and opening and closing separately in the prior art, and the operation is more convenient; compared with the existing valve body, the present invention uses fewer parts, fewer sealing surfaces and connection structures, and reduces the probability of product leakage. The present invention essentially solves the shortcomings of the prior art. More importantly, as an important mechanical component on the waterway, the valve body has great significance in some electrical appliances or equipment that require stable water flow, such as: non-constant temperature gas water heaters or instant water heaters that adjust the outlet water temperature or constant flow water supply through the flow rate, and have excellent application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of an assembly drawing of the present invention;

[0043] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 3 is a cross-sectional view of the present invention;

[0045] Figure 4 is a schematic diagram of the structure of the cut-off structure and the lower cover;

[0046] Figure 5 yes Figure 4 Schematic diagram of the middle steering wheel, the water stop end and the lower push rod being separated;

[0047] Figure 6 yes Figure 5 Schematic diagram from the upper side perspective;

[0048] Figure 7 It is a bottom view of the main body and boss;

[0049] Figure 8 yes Figure 7 Schematic diagram of the cut-off structure after assembly (the limit rudder stock is engaged with the boss);

[0050] Fig. 9 and Fig.10 It is a structural diagram of the valve core;

[0051] Fig.11 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0052] Fig.12 yes Fig.11 A cross-sectional view of

[0053] Fig.13 It is a schematic diagram of the overall structure of Example 3 of the present application;

[0054] Figures 14 to 16 yes Fig.13 A cross-sectional view of

[0055] Fig.17 is a schematic diagram of the structure of the lower cover in Example 3 of the present application;

[0056] Fig.18 It is a schematic diagram of the structure of the lower push rod and the spring in Example 3 of the present application;

[0057] Fig.19 This is a schematic diagram of the structure of the steering wheel in Example 3 of the present application.

[0058] Among them, the figure marks are: 1-valve stem, 1-1-fin, 2-valve body, 2-1-upper cover, 2-2-main body, 2-3-lower cover, 2-4-oblique tooth groove, 2-5-rudder bar groove, 3-valve core, 3-1-gradient groove, 3-2-water outlet, 4-water outlet, 5-water inlet, 6-lower push rod, 6-1-limitable part, 7-steering wheel, 7-1-limiting rudder bar, 8-continuous oblique teeth, 9-boss, 9-1-oblique teeth, 10-sleeve, 10-1-steering matching part, 11-spring, 12-water stop end, 13-partition, 14-sealing ring, 15-gasket, 16-filter screen, 17-limiting part. DETAILED DESCRIPTION

[0059] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0060] The embodiment of the present application provides a valve body structure, in which one end of the valve stem 1 of the valve body extends into the valve body 2, and the valve stem 1 has an axial movement path and radial rotation freedom. Axial pressing: drives the cut-off structure to move downward, triggers the cut-off structure to switch the water path state; radial rotation: links the valve core 3 to adjust the water flow size; a single valve body is used to simultaneously control the functionality of water opening and closing and size adjustment, and the valve opening will not be affected during the water flow opening and closing process.

[0061] The heat conduction structure provided in the embodiments of the present application is described in detail below in conjunction with the accompanying drawings and embodiments.

[0062] Example 1

[0063] See attached Figure 1 To Attachment Fig.10 This embodiment improves the water flow opening and closing and size control structure of the valve body, specifically including:

[0064] Valve body 2, such as Figure 1 and Figure 2 As shown, it is formed by a sealed assembly of an upper cover 2-1, a main body 2-2 and a lower cover 2-3. The upper cover 2-1 is provided with a valve stem hole for the valve stem 1 to pass through. The interior of the valve body 2 is divided into two upper and lower cavities by a partition 13 arranged horizontally in the middle. The partition 13 is provided with a passage for the valve stem 1 to pass through and for water to flow through.

[0065] It should be noted that the structure of the valve body 2 described in this embodiment is not limited to a square structure, and can also be made into a round structure or customized into any reasonable and feasible shape and any reasonable and feasible size according to the structure of a specific product.

[0066] Valve stem 1, such as Figure 1 and Figure 3 As shown, the lower end extends from top to bottom through the valve stem hole into the upper cavity of the valve body 2, and a sealing ring 14 and a gasket 15 are sleeved on the valve stem 1 located at the valve stem hole in the upper cavity. The sealing ring 14 is pressed against the valve stem hole through the valve core 3 to ensure airtightness. The valve stem 1 has an axial movement path and radial rotation freedom. Axial pressing: drives the cut-off structure to move downward, triggers the cut-off structure to switch the water path state; radial rotation: links the valve core 3 to adjust the water flow (similar to the traditional faucet valve core).

[0067] It should be noted that the rotation of the valve stem 1 can be enhanced by friction, such as increasing the roughness of the contact surface between the valve stem 1 and the valve body 2, thereby increasing the friction in the rotation direction of the valve stem 1. The rotation driving force less than the set friction force cannot drive the valve stem 1 to rotate, thereby preventing the valve stem 1 from rotating when the lower push rod 6 rotates, or / and at the same time, the friction between the end of the valve stem 1 and the lower push rod 6 can be reduced to prevent the valve stem 1 from rotating when the lower push rod 6 rotates. For example, the contact surface between the two can be designed to be a sufficiently smooth curved surface to minimize friction. The contact surface can be coated to prevent rust or water erosion, thereby avoiding an increase in friction.

[0068] Valve core 3, such as Fig. 9 and Fig.10 As shown, it is placed in the upper cavity and is linked with the radial rotation of the valve stem 1 to achieve the adjustment of the water flow size. Specifically: one end of the valve stem 1 axially penetrates the valve core 3, and the valve core 3 is provided with a slot along the axial direction. The outer wall of the valve stem 1 has a fin 1-1 and is inserted into the slot, so that the valve stem 1 is linked with the radial rotation of the valve core 3. The outer ring surface of the valve core 3 is provided with a gradual gradient groove 3-1, and the wide end of the gradient groove 3-1 is provided with a water outlet 3-2. The water outlet 4 is provided on the valve body 2 at the outer ring surface of the valve core 3. The valve core 3 is rotated to adjust the connecting cross-sectional area between the gradient groove 3-1 and the water outlet 4, thereby adjusting the water flow size entering the water outlet 4 through the water outlet 3-2 and the gradient groove 3-1 in sequence. The gradient difference is used to ensure the progressive adjustment of the water flow, that is, the water flow adjustment process is linear without a sudden change point.

[0069] Among them, the valve body 2 and the valve core 3 can also be modified to design a multi-way water supply (i.e., multiple water outlets 4). For example, at the position of the valve core 3, a water outlet 4 is opened every 90 degrees along the circumferential direction, and different flow rates are provided at different openings, thereby realizing multi-way water supply.

[0070] It should be noted that the valve core 3 can also be made into a traditional gate valve, ball valve, needle valve or flow regulating valve core, and it is only necessary to change the shape of the valve stem.

[0071] The water inlet 5 is opened on the lower cavity. Figure 7 and Figure 8 As shown, an extended water inlet pipeline is installed at the water inlet 5, and a filter screen 16 is added in the extended water inlet pipeline to filter and prevent foreign matter from getting stuck in the valve body or the rear water channel.

[0072] The cut-off structure is placed in the lower cavity, and the cut-off structure switches the opening and closing state of the passage on the partition 13 through axial pressing of the valve stem 1.

[0073] Among them, refer to Figure 1 , Figures 3 to 8 , the cut-off structure specifically includes:

[0074] The lower push rod 6 is located in the lower cavity, coaxial with the valve stem 1 and placed at one end of the valve stem 1. A steering wheel 7 is coaxially arranged on the upper part of the lower push rod 6. The upper part of the lower push rod 6 and the steering wheel 7 can be fixedly connected, or a circular arc groove that matches the upper part of the lower push rod 6 is provided in the center of the steering wheel 7. The upper part of the lower push rod 6 is pushed into the circular arc groove. As shown in the figure, the steering wheel 7 is evenly distributed with limited position steering rods 7-1 along the circumferential direction, and the lower side of the steering wheel 7 is distributed with adjustment bevel teeth 8 with the tooth tips downward along the circumferential direction of the lower push rod 6;

[0075] The sleeve 10 is sleeved on the lower end of the lower push rod 6. The lower end of the sleeve 10 is fixed on the valve body 2. The upper end of the sleeve 10 is provided with a steering matching portion 10-1 that matches the position-adjusting bevel gear 8 along the circumferential direction. The sleeve 10 provides a tangential force to rotate the lower push rod 6 to a specific angle when the lower push rod 6 moves downward, so that the position-limiting rudder bar 7-1 enters the axial projection range of the boss 9. The rotation angle of the lower push rod 6 after each downward movement can be controlled by controlling the tooth pitch.

[0076] It should be noted that the tooth surface on one side of the adjusting bevel tooth 8 is parallel to the axial direction of the lower push rod 6, and the tooth surface on the other side is an inclined surface, which can better enable the lower push rod 6 to rotate, and the tooth surface is not easy to interfere with the steering matching part 10-1, thereby avoiding damage to the bevel tooth structure. The steering matching part 10-1 is preferably a bevel tooth structure opened along the circumferential direction at the upper end of the sleeve 10, and the bevel tooth structure matches the adjusting bevel tooth 8. Further preferably, when the lower push rod 6 moves down to the extreme position, the steering matching part 10-1 is meshed with the adjusting bevel tooth 8, and the tooth surface is in contact with it. In this way, the tooth surface is more evenly stressed, and the steering matching part 10-1 and the adjusting bevel tooth 8 are designed as continuous bevel teeth distributed along the circumferential direction, which has a better use effect.

[0077] The spring 11 is sleeved on the lower push rod 6 and the sleeve 10, with one end pressing against the inner wall of the valve body 2 and the other end pressing against the upper end of the lower push rod 6, so as to provide a rebound force for the lower push rod 6 to move upward;

[0078] The boss 9 is fixed on the inner wall of the valve body 2 along the circumferential distribution of the lower push rod 6. When the lower push rod 6 is at the upper initial position, the boss 9 is respectively located between two adjacent limit rudder rods 7-1 (similar to meshing). The two ends of the boss 9 along the circumferential direction have helical teeth 9-1 with the tip facing downward, which provide a tangential force to rotate the lower push rod 6 to a specific angle when the limit rudder rod 7-1 moves upward. When the limit rudder rod 7-1 enters the projection range of the helical teeth 9-1 at the front end of the boss 9 along the axial direction of the push rod and is reset by the rebound force of the spring 11, the helical teeth 9-1 provide a tangential force for the limit rudder rod 7-1 to rotate again in the direction of rotation when it moves downward, so that it is stuck on the table surface between the helical teeth 9-1 at both ends of the boss 9, so as to realize the boss limitation of the lower push rod 6;

[0079] The water stop end 12 is fixed to the upper end of the lower push rod 6 and is a plug structure matching the passage. With the resetting of the lower push rod 6 and the switching of the boss limit, the opening and closing state of the passage between the water inlet 5 and the water outlet 4 is changed. When the lower push rod 6 is pressed down or limited by the upper limit boss 9 of the push rod, the water stop end 12 disengages from the passage, and the passage is opened. When the lower push rod 6 disengages from the upper limit boss 9 of the push rod and is reset to the upper initial position, the water stop end 12 blocks the passage, and the passage is closed.

[0080] It should be noted that the water stop end 12 can also be a sliding plug fixed on the lower push rod 6 or linked with the lower push rod 6 for opening and closing the water inlet 5. The purpose of opening and closing the water flow can be achieved by switching the opening and closing state of the water inlet 5 with the resetting of the lower push rod 6 and the limit position of the boss. When the lower push rod 6 is pressed down or limited by the upper limit boss 9 of the push rod, the water stop end 12 disengages from the water inlet 5, and the water inlet 5 is opened. When the lower push rod 6 disengages from the upper limit boss 9 of the push rod and resets to the upper initial position, the water stop end 12 blocks the water inlet 5, and the water inlet 5 is closed.

[0081] If the water inlet 5 and the water outlet 4 are swapped, the water stop end 12 can also be used to control the opening and closing of the water outlet 4 . However, the preferred method is that the valve core 3 controls the water outlet 4 , and the water stop end 12 controls the water inlet 5 .

[0082] The direction, length, angle or connection method of the water inlet 5 and the water outlet 4 can be customized into any reasonable method, for example: the angle between the two is 30 degrees, 90 degrees, 180 degrees, etc. The connection method can also adopt sealing ring end face sealing, quick connector sealing or thread sealing.

[0083] It should be noted that the water stop end 12 can also be linked with the lower push rod 6 to realize the opening and closing of the water inlet 5.

[0084] The material of the above structure can be plastic injection molding such as nylon, ABS, POM and other materials according to the application scenario, or it can be made into metal materials through casting, cutting, machining, or other reasonable and feasible materials and manufacturing processes.

[0085] The embodiment of the present invention also provides a method for using the valve body, which is as follows:

[0086] 1) Control of water flow opening and closing:

[0087] Before the water flow is turned on, when the lower push rod 6 is in the initial position, the limit rudder bar 7-1 of the lower push rod 6 is located between the bosses 9, and the bosses 9 and the limit rudder bar 7-1 are in a state similar to meshing. At this time, the water stop end 12 closes the passage on the partition 13, that is, the water flow is closed;

[0088] a) Water flow is turned on

[0089] Press the valve stem 1 downward to push the lower push rod 6 downward. The lower push rod 6 rotates a specific angle under the cooperation of the adjusting bevel teeth 8 and the steering matching part 10-1, so that the limiting rudder bar 7-1 enters the projection range of the bevel teeth 9-1 at the front end of the boss 9 along the axial direction of the push rod. Release the valve stem 1, and the lower push rod 6 moves upward under the action of the spring 11. The limiting rudder bar 7-1 rotates in the same direction again under the action of the bevel teeth 9-1 at the front end of the boss 9, and falls on the table surface between the bevel teeth 9-1 at both ends of the boss 9 (the boss 9 and the limiting rudder bar 7-1 overlap along the axial direction of the push rod), so that the lower push rod 6 is limited in the axial direction and cannot return to the axial position of the initial state. At this time, the water stop end 12 opens the water inlet 5 or the water outlet 4 or the passage between the water inlet 5 and the water outlet 4, and the water flow is turned on;

[0090] b) Water flow shut off

[0091] After the water flow is turned on, the valve stem 1 is pressed downward again to push the lower push rod 6 downward. The lower push rod 6 rotates again to a specific angle under the cooperation of the adjusting bevel teeth 8 and the steering matching part 10-1, so that the limiting rudder bar 7-1 enters the projection range of the bevel teeth 9-1 at the rear end of the boss 9 along the axial direction of the push rod. The valve stem 1 is released, and the lower push rod 6 moves up again under the action of the spring 11. The limiting rudder bar 7-1 rotates in the same direction again under the action of the bevel teeth 9-1 at the rear end of the boss 9 and disengages from the boss 9. The lower push rod 6 disengages from the limit of the boss 9 to complete the axial reset. At this time, the water stop end 12 is reset and closes the water inlet 5 or the water outlet 4 or the passage between the water inlet 5 and the water outlet 4, and the water flow is closed.

[0092] Open and closed state switching logic:

[0093] After the lower push rod 6 moves downward and the bevel tooth 8 is adjusted to be in place, the steering angle of the lower push rod 6 is determined according to the designed step angle, and then the whole will return to its original position under the elastic force of the spring 11, and touch the bevel tooth 9-1 on the inner wall of the main body 2-2, and rotate again under the action of the bevel tooth 9-1 to determine whether it stays on the boss 9 on the inner wall (i.e., open the valve) or under the boss 9 (i.e., close the valve). Each time it is pressed, the mechanism will rotate by the same step angle, thereby realizing the opening and closing state after each press.

[0094] Specifically:

[0095] Initial state: the water stop end 12 closes the passage, and the water outlet 4 is opened and adjusted to the required opening;

[0096] First press: the lower push rod 6 rotates X degrees + Y degrees and is limited by the boss 9 during the reset process, the water stop end 12 cannot be axially reset, the passage is opened, and water flows out from the water outlet 4 according to the set opening;

[0097] Wherein, X degree is the angle at which the lower push rod 6 rotates under the cooperation of the adjustment bevel teeth 8 and the steering matching part 10-1 during the downward pressing process of the water flow opening; Y degree is the angle at which the lower push rod 6 rotates again in the same direction under the action of the bevel teeth 9-1 at the front end of the boss 9 during the axial resetting process of opening the passage;

[0098] Second press: the lower push rod 6 rotates M degrees + N degrees again and disengages from the limit of the boss 9 during the reset process, the water stop end 12 completes the axial reset, and the water stop end 12 closes the passage, and the water flow can be switched on and off in this way to form a cycle;

[0099] Among them, M degrees is the angle at which the lower push rod 6 rotates under the cooperation of the adjusting bevel teeth 8 and the steering matching part 10-1 during the downward pressing process of water flow closing; N degrees is the angle at which the lower push rod 6 rotates in the same direction again under the action of the bevel teeth 9-1 at the rear end of the boss 9 during the axial resetting process of water flow closing.

[0100] 2) Control of water flow:

[0101] The rotation of the valve stem 1 drives the valve core 3 to change the opening, which is independent of the control of the water flow opening and closing, so as to adjust the water flow size.

[0102] During the rotation of the fin 1-1 on the valve stem 1, the groove of the fluctuating valve core 3 causes the valve core 3 to rotate axially. The structure of the valve core 3 itself is a gradient with different heights, that is, the outer ring surface has a gradient groove 3-1 along the annular direction ( Fig. 9 , Fig.10 ), during the rotation process, the gradient of the valve core 3 is different, and the valve opening is different. A slide groove can be designed in the main structure of the valve body 2 to guide the valve core 3, thereby reducing the friction force on the valve core 3 during rotation, and a limiting protrusion is provided to block the extreme position of the rotation of the valve core 3, thereby playing a limiting role (i.e., limiting the extreme angle of rotation of the valve stem).

[0103] In summary, when the valve stem is pressed down, the water turns on, and when it is pressed again, the water turns off, thereby adjusting the water flow. When the valve stem rotates clockwise, the water becomes smaller, and when it rotates counterclockwise, the water becomes larger, thereby adjusting the water flow. The above realizes all the functions of the valve body.

[0104] Example 2

[0105] See attached Fig.11 and 12 The difference between this embodiment and embodiment 1 is that the specific structural form of the cut-off structure is changed, and another feasible cut-off structure is adopted to implement the present application. The cut-off structure of this embodiment includes:

[0106] The spring 11 is coaxial with the lower push rod 6 and is pressed between the lower push rod 6 and the valve body 2 to provide a rebound force for the lower push rod 6;

[0107] The lower ejector rod 6 is coaxial with the valve stem 1 and is disposed at one end of the valve stem 1. The other end of the lower ejector rod 6 penetrates and extends to the outside of the valve body 2. The outside of the valve body 2 has a limiting portion 17 for limiting the other end of the lower ejector rod 6. Further preferably, the other end of the lower ejector rod 6 has a limitable portion 6-1. The limitable portion 6-1 can be a card slot or a limit convex head, etc. The limitable portion 17 limits the other end of the lower ejector rod 6 by clamping the card slot or the limit convex head. The limitable portion 6-1 shown in the drawings of this embodiment is a limit convex head, and the limit portion 17 is a buckle structure for clamping the limit convex head.

[0108] The water stop end 12 is fixedly connected or linked to the lower push rod 6, and switches the opening and closing state of the water inlet 5 or the water outlet 4 or the passage between the water inlet 5 and the water outlet 4 with the resetting of the lower push rod 6 and the limit switching of the boss.

[0109] When using:

[0110] 1) Control of water flow opening and closing: Before the water flow is turned on, the water stop end 12 closes the passage between the water inlet 5 and the water outlet 4, and the water flow is closed. At this time, the valve stem 1 is pressed downward and the cut-off structure is triggered. At this time, the limitable part 6-1 is stuck in the limit part 17 and is limited. The lower push rod 6 cannot be reset, and the water stop end 12 cannot be reset immediately. The passage between the water inlet 5 and the water outlet 4 is opened, and the water flow is turned on; the valve stem 1 is pressed again and the cut-off structure is triggered again. At this time, the head of the limitable part 6-1 pushes the limit part 17 to open the limit part 17 (or directly manually opens the limit part 17), and the limitable part 6-1 loses its limit and resets under the action of the spring 11. The water stop end 12 is reset accordingly, and the passage between the water inlet 5 and the water outlet 4 is closed again, and the water flow is closed;

[0111] 2) Control of water flow: The rotation of valve stem 1 drives valve core 3 to change the opening, which is independent of the control of water flow opening and closing, so as to adjust the water flow.

[0112] Example 3

[0113] See attached Figures 13 to 19 The difference between this embodiment and embodiment 1 is that the specific structural form of the cut-off structure is changed, and another feasible cut-off structure is adopted to implement the present application. The cut-off structure of this embodiment includes:

[0114] The lower push rod 6 is coaxial with the valve stem 1 and is disposed at one end of the valve stem 1. A steering wheel 7 is disposed on the upper part of the lower push rod 6. The steering wheel 7 is evenly distributed with limited rudders 7-1 along the circumferential direction. The inner wall of the valve body 2 is provided with oblique tooth grooves 2-4 along the circumferential direction. The oblique tooth grooves 2-4 form an oblique tooth structure distributed along the circumferential direction on the inner wall of the valve body 2 on the upper side of the groove body. A rudder groove 2-5 is provided between two adjacent oblique tooth structures. The limited rudders 7-1 are sequentially spaced and clamped in the rudder grooves 2-5. The rudder grooves 2-5 are staggered in depth and shallowness along the circumferential direction. The depth refers to the depth of the opening along the axial direction of the valve stem 1.

[0115] As a preferred structure, the bevel tooth groove 2-4 and the rudder bar groove 2-5 can be a groove structure directly processed on the inner wall of the valve body 2, or a groove structure formed by processing the end of a wall-attached part with a certain thickness built into the valve body 2. The latter is shown in the present embodiment.

[0116] The spring 11 is coaxial with the lower push rod 6 and is pressed between the lower push rod 6 and the valve body 2;

[0117] The water stop end 12 is fixedly connected or linked to the lower push rod 6, rotates in the circumferential direction under the push of the valve stem 1 and the reset thrust of the spring 11, and reciprocates in the axial direction. When the limit rudder bar 7-1 is respectively inserted into the deep and shallow rudder bar grooves 2-5, the water stop end 12 closes and opens the passage between the water inlet 5 and the water outlet 4.

[0118] When using:

[0119] 1) Control of water flow opening and closing:

[0120] Before the water flow is turned on, the water stop end 12 closes the passage between the water inlet 5 and the water outlet 4, and the water flow is turned off. At this time, the limit rudder bar 7-1 is located in the deep groove of the rudder bar groove 2-5. The state at this time is set to the initial state, the valve stem 1 is pressed downward and the cut-off structure is triggered. The lower push rod 6 drives the steering wheel 7 to move downward. When the limit rudder bar 7-1 moves downward, it rotates circumferentially along the oblique tooth groove 2-4 to the bottom of the oblique tooth groove 2-4. The valve stem 1 is released, and the lower push rod 6 is moved up and reset by the spring 11, and at the same time, it brings the steering wheel 7 up. At this time, as shown in the figure, the limit rudder bar 7-1 continues to rotate in the same direction under the action of the oblique tooth groove 2-4 and falls into the shallow groove of the rudder bar groove 2-5. At this time, the water stop end 12 is not really reset to the initial state, the passage between the water inlet 5 and the water outlet 4 is opened, and the water flow is turned on;

[0121] Press the valve stem 1 again and trigger the cut-off structure again, the lower push rod 6 drives the steering wheel 7 to move downward, and the limiting rudder bar 7-1 moves downward and rotates circumferentially along the bevel groove 2-4 to the bottom of the bevel groove 2-4, release the valve stem 1, and the lower push rod 6 moves up and resets under the action of the spring 11, and moves the steering wheel 7 up with it. At this time, as shown in the figure, the limiting rudder bar 7-1 continues to rotate in the same direction under the action of the bevel groove 2-4 and falls into the deep groove of the rudder bar groove 2-5. At this time, the water stop end 12 is reset to the initial state, the passage between the water inlet 5 and the water outlet 4 is closed, and the water flow is closed. The water flow can be opened and closed by repeating this process.

[0122] 2) Control of water flow: The rotation of valve stem 1 drives valve core 3 to change the opening, which is independent of the control of water flow opening and closing, so as to adjust the water flow.

[0123] In summary, when the valve stem is pressed down, the water turns on, and when it is pressed again, the water turns off, thereby adjusting the water flow. When the valve stem rotates clockwise, the water becomes smaller, and when it rotates counterclockwise, the water becomes larger, thereby adjusting the water flow. The above realizes all the functions of the valve body.

[0124] There are many optional structures for the above-mentioned cutoff structure, and this application cannot list them all. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A valve body for controlling the opening and closing and size of water flow, characterized in that: include: The valve stem (1) has one end extending into the valve body (2) and has an axial movement path and radial rotational freedom. Axial pressing drives the cut-off structure to move downward, triggering the cut-off structure to switch the water path state; radial rotation links the valve core (3) to adjust the water flow. The valve core (3) is linked with the radial rotation of the valve stem (1) to adjust the water flow; The cut-off structure is disposed in the valve body (2), and the cut-off structure switches the opening and closing state of the water inlet (5) or the water outlet (4) or the passage between the water inlet (5) and the water outlet (4) by axially pressing the valve stem 1.

2. A valve body for controlling the opening and closing and size of water flow according to claim 1, characterized in that: The cut-off structure comprises: A lower push rod (6) is coaxial with the valve stem (1) and is disposed at one end of the valve stem (1); a steering wheel (7) is disposed on the upper portion of the lower push rod (6); the steering wheel (7) has position-limiting rudder rods (7-1) evenly distributed along the circumference; and the lower side of the steering wheel (7) has position-adjusting helical teeth (8) with tooth tips facing downwards distributed along the circumference of the lower push rod (6); A sleeve (10) is sleeved on the lower end of the lower push rod (6). The lower end of the sleeve (10) is fixed on the valve body (2). The upper end of the sleeve (10) is provided with a steering matching portion (10-1) that matches the position-adjusting bevel gear (8) along the circumferential direction. The sleeve provides a tangential force when the lower push rod (6) moves downward, so that the lower push rod (6) rotates to a specific angle, so that the limiting rudder bar (7-1) enters the axial projection range of the boss (9). A spring (11) is sleeved on the lower push rod (6) and the sleeve (10), one end of which is pressed against the inner wall of the valve body (2) and the other end of which is pressed against the upper end of the lower push rod (6) to provide a rebound force for the lower push rod (6) to move upward; The bosses (9) are fixed on the inner wall of the valve body (2) along the circumference of the lower push rod (6); when the lower push rod (6) is located at the upper initial position, the bosses (9) are respectively located between two adjacent limit rudders (7-1); both ends of the bosses (9) along the circumference have oblique teeth (9-1) with the tip facing downwards, so as to provide a tangential force to rotate the lower push rod (6) to a specific angle when the limit rudder (7-1) moves upward; The water stop end (12) is fixedly connected or linked to the lower push rod (6), and switches the opening and closing state of the water inlet (5) or the water outlet (4) or the passage between the water inlet (5) and the water outlet (4) with the resetting of the lower push rod (6) and the limit switching of the boss.

3. A valve body for controlling the opening and closing and size of water flow according to claim 1, characterized in that: The cut-off structure comprises: A spring (11) is coaxial with the lower push rod (6) and is pressed between the lower push rod (6) and the valve body (2) to provide a rebound force for the lower push rod (6); The lower push rod (6) is coaxial with the valve stem (1) and is disposed at one end of the valve stem (1); the other end of the lower push rod (6) penetrates and extends to the outside of the valve body (2); the outside of the valve body (2) has a limiting portion (17) for limiting the other end of the lower push rod (6); further preferably, the other end of the lower push rod (6) has a limitable portion (6-1), and the limitable portion (6-1) can be a slot or a limit convex head, etc., and the limit portion (17) limits the other end of the lower push rod (6) by clamping the slot or the limit convex head; The water stop end (12) is fixedly connected or linked to the lower push rod (6), and switches the opening and closing state of the water inlet (5) or the water outlet (4) or the passage between the water inlet (5) and the water outlet (4) with the resetting of the lower push rod (6) and the limit switching of the boss.

4. A valve body for controlling the opening and closing and size of water flow according to claim 1, characterized in that: The cut-off structure comprises: A lower push rod (6) is coaxial with the valve stem (1) and is disposed at one end of the valve stem (1). A steering wheel (7) is disposed on the upper part of the lower push rod (6). The steering wheel (7) is evenly distributed with limited rudders (7-1) along the circumferential direction. An inner wall of the valve body (2) is provided with oblique tooth grooves (2-4) along the circumferential direction. The oblique tooth grooves (2-4) form an oblique tooth structure distributed along the circumferential direction on the inner wall of the valve body (2) on the upper side of the groove body. A rudder groove (2-5) is provided between two adjacent oblique tooth structures. The limited rudders (7-1) are sequentially spaced and clamped in the rudder grooves (2-5). The rudder grooves (2-5) are staggered in depth and shallowness along the circumferential direction. The depth refers to the depth of the opening along the axial direction of the valve stem (1). A spring (11) is coaxial with the lower push rod (6) and is pressed between the lower push rod (6) and the valve body (2); The water stop end (12) is fixedly connected or linked to the lower push rod (6), rotates in the circumferential direction under the action of the push of the valve stem (1) and the reset thrust of the spring (11), and reciprocates in the axial direction. When the limit rudder bar (7-1) is respectively inserted into the deep and shallow rudder bar grooves (2-5), the water stop end (12) can close and open the passage between the water inlet (5) and the water outlet (4).

5. A valve body for controlling the opening and closing and size of water flow according to claim 2, characterized in that: One end of the valve stem (1) drives the cut-off structure to open and close the passage between the water inlet (5) and the water outlet (4) through axial pressing movement. The valve body (2) is divided into two upper and lower cavities by a partition (13). One end of the valve stem (1) extends from top to bottom into the upper cavity. The valve core (3) is placed in the upper cavity and rotates radially with the valve stem (1). The lower push rod (6) is located in the lower cavity. The partition (13) is located between the valve core (3) and the lower push rod (6), and the partition (13) is located on the upper cavity. A passage is provided for the valve stem (1) to pass through and for water to flow through, the water stop end (12) being a plug structure fixed to the upper end of the lower push rod (6) and corresponding to the passage, when the lower push rod (6) is pressed down or limited by the upper limiting boss (9) of the push rod, the water stop end (12) is separated from the passage, and the passage is opened; when the lower push rod (6) is separated from the upper limiting boss (9) of the push rod and reset to the upper initial position, the water stop end (12) blocks the passage, and the passage is closed.

6. A valve body for controlling the opening and closing and size of water flow according to claim 2, characterized in that: The water stop end (12) is a sliding plug fixed on the lower push rod (6) or linked with the lower push rod (6) for opening and closing the water inlet (5) or the water outlet (4). When the lower push rod (6) is pressed down or limited by the upper limit boss (9) of the push rod, the water stop end (12) is separated from the water inlet (5) or the water outlet (4), and the water inlet (5) or the water outlet (4) is opened. When the lower push rod (6) is separated from the upper limit boss (9) of the push rod and reset to the upper initial position, the water stop end (12) blocks the water inlet (5) or the water outlet (4), and the water inlet (5) or the water outlet (4) is closed.

7. A valve body for controlling the opening and closing and size of water flow according to claim 1, characterized in that: The valve core (3) is arranged opposite to the water outlet (4) and is used to adjust the water flow of the water outlet (4); the cut-off structure is used to open and close the water inlet (5) or the passage between the water inlet (5) and the water outlet (4).

8. A valve body for controlling the opening and closing and size of water flow according to claim 1, characterized in that: The outer ring surface of the valve core (3) is provided with a gradient groove (3-1), a water outlet hole (3-2) is provided at the wide end of the gradient groove (3-1), and a water outlet (4) is provided on the valve body (2) directly facing the outer ring surface of the valve core (3). The valve core (3) is rotated to adjust the communicating cross-sectional area between the gradient groove (3-1) and the water outlet (4), thereby adjusting the water flow that sequentially enters the water outlet (4) through the water outlet hole (3-2) and the gradient groove (3-1).

9. A valve body for controlling the opening and closing and size of water flow according to claim 1, characterized in that: One end of the valve stem (1) penetrates the valve core (3) along the axial direction, and the valve core (3) is provided with a slot along the axial direction. A fin (1-1) is provided on the outer wall of the valve stem (1) and is inserted into the slot, so that the valve stem (1) and the valve core (3) can rotate radially in linkage.

10. A valve body for controlling the opening and closing and size of water flow according to claim 1, characterized in that: The tooth surface on one side of the adjusting helical tooth (8) is parallel to the axial direction of the lower push rod (6), and the tooth surface on the other side is an inclined surface. The steering matching part (10-1) is a helical tooth structure opened along the circumferential direction at the upper end of the sleeve (10), and the helical tooth structure matches the adjusting helical tooth (8).

11. A method for using a valve body for controlling the opening and closing and size of water flow as claimed in any one of claims 2 to 4, characterized in that: Specifically include: 1) Control of water flow opening and closing: before the water flow is opened, the cut-off structure closes the water inlet (5) or the water outlet (4) or the passage between the water inlet (5) and the water outlet (4), and the water flow is closed. At this time, the valve stem (1) is pressed downward to trigger the cut-off structure, and the cut-off structure is switched to open the water inlet (5) or the water outlet (4) or the passage between the water inlet (5) and the water outlet (4); the valve stem (1) is pressed downward again, and the valve stem (1) triggers the cut-off structure again, and the cut-off structure is switched to close the water inlet (5) or the water outlet (4) or the passage between the water inlet (5) and the water outlet (4); 2) Control of water flow: The valve stem 1 rotates to drive the valve core (3) to change the opening, which is independent of the control of the water flow opening and closing, thereby achieving the adjustment of the water flow.

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