Drawing head

Abstract

The drawing head comprises a water outlet main body, a water quantity adjusting part, a flow cutting part and a combination switch assembly. The water outlet body is provided with a water inlet channel, a mounting cavity, a first water outlet channel and a second water outlet channel. A water passing hole is formed in the water inlet channel, and the mounting cavity is provided with a water inlet, a first water outlet and a second water outlet. The combination switch assembly is movably installed on the periphery of the water outlet body, controls the water volume adjusting piece to adjust the size of the water passing hole through rotation action connection and controls the flow cutting piece to form switching action in the installation cavity through pressing action connection. The combination switch assembly arranged on the drawing head can be linked with the two functional modules at the same time, a more compact drawing head is formed, and the problem that when multiple switches are arranged, the product size is large or a water flow channel is small is solved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen and bathroom, in particular to a pull-out head. Background Art

[0002] Pull-out heads are mostly used in faucets of wash basins or kitchen sinks. They generally have two water outlet modes, one is the commonly used bubble water, and the other is the shower water with greater flushing power, because most pull-out heads are equipped with a switch. When the pull-out head is in use, the user can pull it out with one hand, and the other hand can hold the object to be cleaned, which is convenient for cleaning. At present, a pull-out head is also proposed on the market. On the basis of the above-mentioned switch, a flow adjustment switch is additionally provided, so that when the user pulls it out with one hand, not only can the water outlet mode of the pull-out head be controlled, but also its water outlet can be controlled to meet more cleaning scenes and needs. However, the above-mentioned pull-out head has a large overall size due to the large number of switches, or, under the same size limit, the size of the water passage will be smaller. Whether the size is too large or the flow is small, it will affect the operating experience. In addition, the existing pull-out head will not automatically reset to the bubble water state when it is switched to shower water, which is not convenient for the next use. For this reason, the present invention provides a pull-out head with a compact switch structure and interrelated pull-out heads, which can solve the above technical problems. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a pull-out head structure with one switch and two control functions.

[0004] A pull-out head includes a water outlet body, a water volume adjustment member, a flow cutter and a composite switch assembly, wherein: The water outlet body is provided with a water inlet channel, a telescopic channel, a mounting cavity, a first water outlet channel and a second water outlet channel. The periphery of the telescopic channel is provided with a water hole connected to the water inlet channel, and the mounting cavity is provided with a water inlet, a first water outlet and a second water outlet corresponding to the telescopic channel, the first water outlet channel and the second water outlet channel respectively.

[0005] The water volume regulating member is telescopically installed in the telescopic channel and is close to the water passing hole, and the flow cutting member is movably installed in the installation cavity.

[0006] The composite switch assembly is movably installed on the periphery of the water outlet body, and is connected to control the extension and retraction of the water volume adjustment member and adjust the size of the water hole through a rotating action, and is connected to control the flow cutting member to form a switching action in the installation cavity through a pressing action. The water inlet is connected to the first water outlet or the second water outlet through the switching action of the flow cutting member, and the flow cutting member automatically restores to an initial state when the water outlet body is in a water-free state, and controls the water inlet, the first water outlet and the second water outlet to restore the initial connection state, so that each time it is used, the first water outlet can be a predetermined water outlet mode, which brings convenience to use.

[0007] The pull-out head of the present invention has both the water outlet mode switching function and the flow regulating function, which provides great convenience for consumers when using water. In addition, by setting a composite switch assembly, two functional modules can be linked at the same time, that is, one switch can control the water outlet mode and regulate the water outlet. On the one hand, the number of switches set is reduced to form a more compact pull-out head, avoiding the problem of large product size or small water flow channel caused by setting multiple switches, and will not cause the problem of large size of the pull-out head and inconsistency with the faucet, nor will it cause the problem of small water flow. In addition, the flow cut-off member used in the present invention has an automatic reset function after the water is cut off, so that the initial water outlet mode can be automatically restored after each water use, avoiding trouble for the next use.

[0008] Preferably, the composite switch assembly includes a pressing seat, a linkage member and a composite key. The flow-cutting member is movably installed in the installation cavity, and one end extends outside the installation cavity to form a pressing end. The pressing seat is movably installed on the periphery of the water outlet body and is close to the pressing end of the flow-cutting member. The pressing seat drives the flow-cutting member by pressing to form the switching action, thereby realizing the water outlet mode switching function. The linkage member is movably installed on the periphery of the water outlet body, one end of which is connected to the water volume regulating member, and the other end extends close to the pressing seat to form a driving end docking with the water volume regulating member. The composite key is rotatably installed on the top of the pressing seat and is provided with an eccentric driving head. On the one hand, the composite key can press the pressing seat to form a flow-cutting function, and can also realize a flow regulating function by rotating and docking with and driving the driving end of the linkage member through the driving head.

[0009] Preferably, the flow cutter is telescopically installed along the axial direction of the water outlet body, and includes a telescopic shaft and a plug. The water inlet is located between the first water outlet and the second water outlet, and the plug moves with the telescopic shaft to block the second water outlet, and the water inlet is connected to the first water outlet to form a first water outlet mode, or the plug moves with the telescopic shaft to block the first water outlet, and the water inlet and the second water outlet are connected to form a second water outlet mode.

[0010] Preferably, the pressing seat forms the switching action by pressing the telescopic shaft with an inclined surface, thereby realizing the change of the pressing direction, and the pressing force of the peripheral part can also drive the flow cutting member arranged axially.

[0011] Preferably, the pressing end of the telescopic shaft is provided with a first driving inclined surface and a second driving inclined surface, and the pressing seat is provided with a first pressing inclined surface and a second pressing inclined surface facing the pressing end, the first pressing inclined surface and the second driving inclined surface are parallel, and the second pressing inclined surface is parallel to the first driving inclined surface. The plug is telescopically installed between the telescopic shaft, and a travel limit structure is provided in the telescopic direction to prevent the plug and the telescopic shaft from separating from each other. A pre-tightened first spring is provided between the pressing end of the telescopic shaft and the water outlet body, and a pre-tightened second spring is provided between the end of the plug and the water outlet body.

[0012] In the initial state, the second spring pushes and presses the plug onto the second water outlet, the water inlet and the first water outlet are connected, the first spring pushes the telescopic shaft, the telescopic shaft and the plug are contracted to the shortest length, and the first pressing slope and the second driving slope are staggered in a direction perpendicular to the axial direction of the telescopic shaft, that is, if the pressing seat is pressed at this time, the first pressing slope will squeeze the second driving slope to form a flow cutting action.

[0013] In the water-flowing state, the pressing seat is pressed by the composite key, the first pressing slope moves downward and squeezes the second driving slope, and drives the telescopic shaft to push the plug, the plug compresses the second spring and blocks the first water outlet, the water inlet and the second water outlet are connected, at this time, the first water outlet mode is switched to the second water outlet mode, then, the pressing seat is released and reset by the composite key, the water pressure in the installation cavity is greater than the elasticity of the second spring, and the plug is maintained in the state of blocking the first water outlet, and the water pressure in the installation cavity pushes the telescopic shaft to reset and compress the first spring, at this time, the telescopic shaft and the plug are stretched to the longest length, and the second pressing slope and the first driving slope are staggered in a direction perpendicular to the axial direction of the telescopic shaft. When the pressing seat is pressed again by the composite key, the second pressing slope moves downward and squeezes the first driving slope, and drives the telescopic shaft to pull out the plug, and the plug opens the first water outlet and blocks the second water outlet, and the second spring elastic force and hydraulic force maintain the blocking state of the second water outlet. At this time, the second water outlet mode is switched to the first water outlet mode. When the water outlet body stops water, the flow cutter returns to the initial state.

[0014] Preferably, the end of the plug facing the telescopic shaft is provided with a telescopic groove, and the notch of the telescopic groove is a contraction opening, the end of the telescopic shaft facing the plug is provided with a piston head, the end of the piston head is provided with a telescopic rod inserted into the telescopic groove, and the end of the telescopic rod is provided with a limit head with a diameter larger than the contraction opening, and the travel limit structure is formed between the telescopic groove and the telescopic rod. The telescopic shaft reciprocates in the installation cavity through the piston head, and the outer ring of the piston head is provided with a V-shaped opening sealing ring with a close mouth facing the plug.

[0015] Preferably, a compressed third spring is provided between the pressing seat and the water outlet body, and the third spring pushes the pressing seat away from the pressing end of the flow cutting member, so that the pressing seat can automatically reset after being released. The water outlet body is provided with limit plates on both sides of the pressing seat, and the two limit seats are provided with undercuts to limit the pressing seat from being separated from the installation position. The tops of the two limit plates are provided with parallel and opposite strip openings, and the strip openings are parallel to the moving direction of the pressing seat, and a constriction is formed at the openings. The top of the pressing seat is provided with an arc groove connected to the two shaped openings. During installation, the rotating shaft of the composite key is inserted into the two shaped openings and abuts against the arc groove, and the composite key rotates on the arc groove and in the shaped opening through the rotating shaft, or / and, the composite key reciprocates in the two shaped openings through the rotating shaft and presses the pressing seat.

[0016] Preferably, the linkage is telescopically installed along the axial direction of the water outlet body, and a docking port parallel to the movable direction of the pressing seat is provided at the periphery of the driving end, and the depth of the docking port is greater than the diameter of the driving head. The driving head of the composite key is inserted into the docking port. When the driving head rotates around the rotating shaft of the composite key, the driving head forms an action of pushing the docking port and a action of reciprocating along the docking port in the docking port, thereby driving the linkage to reciprocate along the axial direction of the water outlet body. The water volume adjustment member is columnar, telescopically installed in the telescopic channel and driven by the linkage member. The water volume adjustment member blocks the telescopic channel, and a water groove is provided in the middle part, and an adjustment hole connected to the water groove is provided at the periphery. The notch of the water groove is connected to the water inlet of the installation cavity through the telescopic channel. The water hole is arranged on the moving track of the adjustment hole, and the water volume adjustment member adjusts the water flow of the water inlet channel by the staggered degree of the adjustment hole and the water hole. The structure is simple and easy to form and assemble.

[0017] Preferably, the composite key is provided with a pressing roller coaxial with its rotating shaft, and when the pressing roller rotates in one direction and reaches the limit position, the adjusting hole and the water hole are fully connected, and the water flow rate is maximum; alternatively, when the pressing roller rotates in the other direction and reaches the limit position, the adjusting hole and the water hole are completely staggered, and the water flow rate is minimum, so that when the pressing roller rolls in one direction, the water output can be reduced, and when it rotates in the other direction, the water output can be increased, which is convenient for use and can avoid errors in flow regulation.

[0018] Preferably, the pull-out head also includes a shell, one end of the shell is a mounting opening, and the other end is a mounting constriction; the water outlet body is inserted from the mounting opening of the shell, the outer periphery of the water inlet end of the water outlet body is provided with a thread, and extends from the mounting constriction of the shell, and is tightened and fixed by a nut; the shell is provided with a clearance hole corresponding to the composite switch assembly, the pressing roller is connected to the composite key through the clearance opening, and is exposed from the clearance opening, thereby further restricting the water outlet body within the shell.

[0019] Preferably, the pressing roller and the composite key are assembled together by means of snaps, screws or bonding.

[0020] Preferably, the water outlet ends of the first water outlet channel and the second water outlet channel form a bubble water outlet and a shower water outlet, respectively.

[0021] From the above description of the present invention, it can be seen that the present invention has the following beneficial effects: The pull-out head of the present invention has both the water outlet mode switching function and the flow rate regulating function, which provides great convenience for consumers when using water. In addition, by setting a composite switch component, two functional modules can be linked at the same time, that is, one switch can control the water outlet mode and regulate the water outlet. On the one hand, the number of switches is reduced, and a more compact pull-out head can be formed, avoiding the problem of large product size or small water flow channel caused by setting multiple switches, and will not cause the problem of large pull-out head size and inconsistent proportion with the faucet, nor will it cause the problem of small water flow. The flow cut-off element used in the present invention has an automatic reset function after the water supply is cut off, so that the initial water outlet mode can be automatically restored after each water use, avoiding troubles in the next use; The composite key used in the present invention can not only rotate, but also move in a direction perpendicular to the rotating shaft, so that the eccentrically arranged driving head can drive the linkage member and the water volume regulating member to move, and can also form a pressing action on the pressing seat; The flow cutting member adopts a telescopic structure, so that the spring force and the water flow hydraulic force can be used to form and maintain different water outlet states, and the structure is simple and ingenious; Two groups of inclined surfaces are arranged between the pressing seat and the telescopic shaft, so that the pressing seat can push or pull out the telescopic shaft through the two groups of inclined surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] in: Figure 1 This is a side view of the pull head. Figure 1 ; Figure 2 This is a side view of the pull head. Figure 2 ; (Hide the shell) Figure 3 It's an explosion of pulling the head Figure 1 ; Figure 4 It's an explosion of pulling the head Figure 2; (Hide the shell) Figure 5 It is a three-dimensional cross-sectional view of a pull head; Figure 6 It is a partial enlarged view of a pull-out head; (About Figure 4 A) Figure 7 A cross-section of a pull-out head Figure 1 ; (initial state, water off state, minimum water output state) Figure 8 A cross-section of a pull-out head Figure 2 ; (The first switching action switches to the water flow state of the second water outlet channel) Fig. 9 A cross-section of a pull-out head Figure 3 ; (The first switching action is released and the water output is at maximum) Fig.10 A cross-section of a pull-out head Figure 4 ; (The second switching action switches to the water flow state of the first water outlet channel) Fig.11 A cross-section of a pull-out head Figure 5 ; (Second switch action release state) Figures 1 to 11 The symbols in the figure are: water outlet body 1, water inlet channel 11, water hole 111, installation cavity 12, water inlet 121, first water outlet 122, second water outlet 123, first water outlet channel 13, second water outlet channel 14, bubble water nozzle 15, shower water nozzle 16, water volume adjustment member 2, water groove 21, adjustment hole 22, flow cutting member 3, telescopic shaft 31, first driving inclined surface 311, second driving inclined surface 312, piston head 313, Telescopic rod 314, plug 32, telescopic slot 321, first spring 33, second spring 34, composite switch assembly 4, pressing seat 41, first pressing inclined surface 411, second pressing inclined surface 412, arc groove 413, linkage part 42, docking port 421, composite key 43, drive head 431, pressing roller 432, third spring 44, limit plate 45, undercut 451, strip opening 452, shell 5, clearance hole 51, nut 6. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] See also Figures 1 to 11 , see Figures 1 to 9A pull-out head includes a water outlet body 1, a water volume adjustment member 2, a flow cutter 3 and a composite switch assembly 4, wherein: The water outlet body 1 is provided with a water inlet channel 11, a telescopic channel, a mounting cavity 12, a first water outlet channel 13 and a second water outlet channel 14. The periphery of the telescopic channel is provided with a water hole 111 communicating with the water inlet channel 11, and the mounting cavity 12 is provided with a water inlet 121, a first water outlet 122 and a second water outlet 123 corresponding to the telescopic channel 11, the first water outlet channel 13 and the second water outlet channel 14, respectively. Preferably, the water outlet ends of the first water outlet channel 13 and the second water outlet channel 14 form a bubble outlet 15 and a shower outlet 16, respectively.

[0026] The water volume adjustment member 2 is telescopically installed in the telescopic channel 11 and is close to the water hole 111, and the flow cutter 3 is movably installed in the installation cavity 12. The composite switch assembly 4 is movably installed on the periphery of the water outlet body 1, and is connected to control the water volume adjustment member 2 to adjust the size of the water hole through a rotating action, and is connected to control the flow cutter 3 to form a switching action in the installation cavity 12 through a pressing action. The water inlet 121 is connected to the first water outlet 122 or the second water outlet 123 through the switching action of the flow cutter 3, and the flow cutter 3 automatically restores the initial state when the water outlet body 1 is in a water-free state, and controls the water inlet 121, the first water outlet 122 and the second water outlet 123 to restore the initial connection state, so that each time it is used, the first water outlet can be a predetermined water outlet mode, which brings convenience to use.

[0027] For the composite switch assembly 4, in one embodiment, the composite switch assembly 4 includes a pressing seat 41, a linkage member 42 and a composite key 43. The flow-cutting member 3 is movably installed in the installation cavity 12, and one end extends outside the installation cavity 12 to form a pressing end. The pressing seat 41 is movably installed on the periphery of the water outlet body 1 and is close to the pressing end of the flow-cutting member 3. The pressing seat 41 drives the flow-cutting member 3 by pressing to form the switching action, thereby realizing the water outlet mode switching function. The linkage member 42 is movably installed on the periphery of the water outlet body 1, one end of which is connected to the water volume adjustment member 2, and the other end extends close to the pressing seat 41 to form a driving end that docks the water volume adjustment member 2. The composite key 43 is rotatably installed on the top of the pressing seat 41, and is provided with an eccentric driving head 431. On the one hand, the composite key 43 can press the pressing seat 41 to form a flow-cutting function, and can also realize a flow regulating function by rotating and docking and driving the driving end of the linkage member 42 through the driving head 431.

[0028] On the basis of the above embodiment, further, the flow cutting member 3 is installed axially telescopically along the water outlet body 1, and includes a telescopic shaft 31 and a plug 32. The water inlet 121 is located between the first water outlet 122 and the second water outlet 123, and the plug 32 moves with the telescopic shaft 31 and blocks the second water outlet 123, and the water inlet 121 and the first water outlet 122 are connected to form a first water outlet mode, or the plug 32 moves with the telescopic shaft 31 to block the first water outlet 122, and the water inlet 121 and the second water outlet 123 are connected to form a second water outlet mode. In addition, preferably, the pressing seat 41 forms the switching action by squeezing the telescopic shaft 31 through an inclined surface, thereby realizing the change of the pressing direction, and the pressing force of the peripheral part can also drive the axially arranged flow cutting member 3.

[0029] For the above-mentioned inclined surface extrusion structure, in a specific embodiment, the pressing end periphery of the telescopic shaft 31 is provided with a first driving inclined surface 311 and a second driving inclined surface 312, and the pressing seat 41 is provided with a first pressing inclined surface 411 and a second pressing inclined surface 412 facing the pressing end periphery, the first pressing inclined surface 411 and the second driving inclined surface 312 are parallel, and the second pressing inclined surface 412 is parallel to the first driving inclined surface 311. The plug 32 and the telescopic shaft 31 are telescopically installed, and a travel limit structure is provided in the telescopic direction to prevent the plug 32 and the telescopic shaft 31 from separating from each other. A pre-tightened first spring 33 is provided between the pressing end of the telescopic shaft 31 and the water outlet body 1, and a pre-tightened second spring 34 is provided between the end of the plug 32 and the water outlet body 1.

[0030] The principle of using the flow cutting function of the pull-out head provided in this embodiment is as follows: In the initial state, if Figure 7 , the second spring 34 pushes and presses the plug 32 onto the second water outlet 123, the water inlet 121 and the first water outlet 122 are connected, the first spring 33 pushes the telescopic shaft 31, the telescopic shaft 31 and the plug 32 are contracted to the shortest length state, and the first pressing slope 411 and the second driving slope 312 are staggered in a direction perpendicular to the axial direction of the telescopic shaft 31, that is, if the pressing seat 41 is pressed at this time, the first pressing slope 411 will squeeze the second driving slope 312 to form a flow cutting action.

[0031] In the water flow state, the pressing seat 41 is pressed by the composite key 43, see Figure 8 , the first pressing inclined surface 411 moves downward and squeezes the second driving inclined surface 312, and drives the telescopic shaft 31 to push the plug 32, the plug 32 compresses the second spring 34 and blocks the first water outlet 122, the water inlet 121 and the second water outlet 123 are connected, at this time, the first water outlet mode is switched to the second water outlet mode, then, please refer to Fig. 9The pressing seat 41 is released and reset by the composite key 43, the water pressure in the installation cavity 12 is greater than the elasticity of the second spring 34, and the plug 32 is maintained to block the first water outlet 122, and the water pressure in the installation cavity 12 pushes the telescopic shaft 31 to reset and compresses the first spring 33. At this time, the telescopic shaft 31 and the plug 32 are stretched to the longest length, and the second pressing slope 412 and the first driving slope 311 are staggered in a direction perpendicular to the axial direction of the telescopic shaft 31.

[0032] When the pressing seat 41 is pressed again by the composite key 43, refer to Fig.10 and Fig.11 , the second pressing slope 412 moves downward and squeezes the first driving slope 311, and drives the telescopic shaft 31 to pull out the plug 32, the plug 32 opens the first water outlet 122 and blocks the second water outlet 123, and the second spring 34 elastic force and hydraulic force maintain the blocking state of the second water outlet 123, at this time, the second water outlet mode is switched to the first water outlet mode. When the water outlet body 1 stops water, the flow cutter 3 returns to the initial state.

[0033] Regarding the specific structure of the above-mentioned travel limit structure, in one embodiment, the end of the plug 32 facing the telescopic shaft 31 is provided with a telescopic groove 321, and the notch of the telescopic groove 321 is a contraction opening, the end of the telescopic shaft 31 facing the plug 32 is provided with a piston head 313, the end of the piston head 313 is provided with a telescopic rod 314 inserted into the telescopic groove 321, and the end of the telescopic rod 314 is provided with a limit head with a diameter larger than the contraction opening, and the travel limit structure is formed between the telescopic groove 321 and the telescopic rod 314. The telescopic shaft 31 reciprocates in the installation cavity 12 through the piston head 313, and the outer ring of the piston head 313 is provided with a V-shaped opening sealing ring with the mouth facing the plug 32.

[0034] In another embodiment, in order to allow the pressing seat 41 to automatically pop up, a compressed third spring 44 is provided between the pressing seat 41 and the water outlet body 1, and the third spring 44 pushes the pressing seat 41 away from the pressing end of the flow cutting member 3, so that the pressing seat 41 can automatically reset after being released. In addition, the water outlet body 1 is provided with limit plates 45 on both sides of the pressing seat 41, and the two limit seats are provided with undercuts 451 for limiting the pressing seat 41 from being separated from the installation position. The tops of the two limit plates 45 are provided with parallel and opposite strip openings 452, and the strip openings 452 are parallel to the moving direction of the pressing seat 41, and a constriction is formed at the opening. The top of the pressing seat 41 is provided with an arc groove 413 connected to the two strip openings 452. During installation, the rotating shaft of the composite key 43 is inserted into the two shaped openings 452 and presses against the arc groove 413. The composite key 43 rotates on the arc groove 413 and in the shaped opening through the rotating shaft, or / and the composite key 43 reciprocates in the two shaped openings 452 through the rotating shaft and presses the pressing seat 41.

[0035] Regarding the optional structure of the linkage member 42 and the water volume adjustment member 2, in one embodiment, the linkage member 42 is telescopically installed along the axial direction of the water outlet body 1, and a docking port 421 parallel to the moving direction of the pressing seat 41 is provided at the periphery of the driving end, and the depth of the docking port 421 is greater than the diameter of the driving head 431, and the driving head 431 of the composite key 43 is inserted into the docking port 421. When the driving head 431 rotates around the rotating shaft of the composite key 43, the driving head 431 forms an action of pushing the docking port 421 and an action of reciprocating along the docking port 421 in the docking port 421, thereby driving the linkage member 42 to reciprocate along the axial direction of the water outlet body 1. The water volume adjustment member 2 is columnar, telescopically installed in the telescopic channel 11 and driven by the linkage member 42. The water volume regulating member 2 blocks the telescopic channel 11, and is provided with a water groove 21 in the middle, and an adjusting hole 22 connected to the water groove 21 is provided on the periphery, and the notch of the water groove 21 is connected with the water inlet 121 of the installation cavity 12 through the telescopic channel 11. The water hole 111 is arranged on the moving track of the adjusting hole 22, and the water volume regulating member 2 adjusts the water flow of the water inlet channel 11 by the staggered degree of the adjusting hole 22 and the water hole 111, and has a simple structure and is easy to form and assemble.

[0036] To facilitate the rotation of the composite key 43, the composite key 43 is provided with a pressing roller 432 coaxial with its rotating shaft. In addition, to facilitate the adjustment of the water output, the pressing roller 432 rotates in one direction and reaches the limit position, the adjusting hole 22 and the water hole 111 are fully connected, and the water flow is maximum. Alternatively, the pressing roller 432 rotates in the other direction and reaches the limit position, the adjusting hole 22 and the water hole 111 are completely offset, and the water flow is minimum. This allows the pressing roller 432 to reduce water output when rolling in one direction, and increase water output when rotating in the other direction, thereby avoiding errors in flow regulation.

[0037] On the basis of the above embodiment, in another embodiment, the pull-out head further comprises a housing 5, one end of the housing 5 is a mounting opening, and the other end is a mounting constriction; the water outlet body 1 is inserted from the mounting opening of the housing 5, the outer periphery of the water inlet end of the water outlet body 1 is provided with threads, and extends from the mounting constriction of the housing 5, and is tightened and fixed by a nut 6; the housing 5 is provided with a clearance hole 51 corresponding to the composite switch assembly 4, the pressing roller 432 is connected with the composite key 43 through the clearance opening, and is exposed from the clearance opening, thereby further restricting the water outlet body 1 in the housing 5. Preferably, the pressing roller 432 and the composite key 43 are assembled together by buckles, screws or bonding.

[0038] The pull-out head of the present invention has both the water outlet mode switching function and the flow regulating function, which provides great convenience for consumers when using water. In addition, by setting the composite switch assembly 4, two functional modules can be linked at the same time, that is, one switch can control the water outlet mode and regulate the water outlet. On the one hand, the number of switches set is reduced to form a more compact pull-out head, avoiding the problem of large product size or small water flow channel caused by setting multiple switches, and will not cause the problem of large size of the pull-out head and inconsistent proportion with the faucet, nor will it cause the problem of small water flow. In addition, the flow cut-off member 3 used in the present invention has an automatic reset function after the water is cut off, so that the initial water outlet mode can be automatically restored after each water use, avoiding trouble for the next use.

[0039] In addition, the pull-out head of the present invention is generally used in conjunction with a faucet, and can also be used alone as a hand-held showerhead.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A pull head, characterized in that: It includes a water outlet body, a water volume adjustment component, a flow cutter and a composite switch assembly; The water outlet body is provided with a water inlet channel, a telescopic channel, a mounting cavity, a first water outlet channel and a second water outlet channel; the periphery of the telescopic channel is provided with a water hole connected to the water inlet channel, and the mounting cavity is provided with a water inlet, a first water outlet and a second water outlet corresponding to the telescopic channel, the first water outlet channel and the second water outlet channel respectively; The water volume adjustment member is telescopically installed in the telescopic channel and close to the water passage hole, and the flow cutting member is movably installed in the installation cavity; The composite switch assembly is movably installed around the water outlet body, and is connected to control the extension and retraction of the water volume adjustment member and adjust the size of the water hole through a rotating action. The flow cutting member is connected to control the switching action in the installation cavity through a pressing action. The water inlet is connected to the first water outlet or the second water outlet through the switching action of the flow cutting member, and the flow cutting member automatically restores to an initial state when the water outlet body is in a water-free state, and controls the water inlet, the first water outlet, and the second water outlet to restore an initial connection state.

2. A pulling head according to claim 1, characterized in that: The composite switch assembly includes a pressing seat, a linkage member and a composite key; the flow-cutting member is movably installed in the installation cavity, and one end extends out of the installation cavity to form a pressing end; the pressing seat is movably installed on the periphery of the water outlet body and is close to the pressing end of the flow-cutting member, and the pressing seat drives the flow-cutting member by pressing to form the switching action; the linkage member is movably installed on the periphery of the water outlet body, one end of which is connected to the water volume adjustment member, and the other end extends close to the pressing seat to form a driving end; the composite key is rotatably installed on the top of the pressing seat, and is provided with an eccentric driving head, and the driving head docks and drives the driving end of the linkage member.

3. A pulling head according to claim 2, characterized in that: The flow cutting member is telescopically installed along the axial direction of the water outlet body, and includes a telescopic shaft and a plug; the water inlet is located between the first water outlet and the second water outlet, and the plug blocks the second water outlet as the telescopic shaft moves, and the water inlet is connected to the first water outlet, or the plug blocks the first water outlet as the telescopic shaft moves, and the water inlet and the second water outlet are connected.

4. A pulling head according to claim 3, characterized in that: The pressing seat forms the switching action by pressing the telescopic shaft through the inclined surface.

5. A pulling head according to claim 4, characterized in that: The pressing end of the telescopic shaft is provided with a first driving inclined surface and a second driving inclined surface, and the pressing seat is provided with a first pressing inclined surface and a second pressing inclined surface facing the pressing end, the first pressing inclined surface and the second driving inclined surface are parallel, and the second pressing inclined surface is parallel to the first driving inclined surface; the plug is telescopically installed between the telescopic shaft and the telescopic shaft, and a travel limit structure is provided in the telescopic direction; a pre-tightened first spring is provided between the pressing end of the telescopic shaft and the water outlet body, and a pre-tightened second spring is provided between the end of the plug and the water outlet body; In the initial state, the second spring pushes and presses the plug onto the second water outlet, the water inlet and the first water outlet are connected, the first spring pushes the telescopic shaft, the telescopic shaft and the plug are contracted to the shortest length, and the first pressing slope and the second driving slope are staggered in a direction perpendicular to the axial direction of the telescopic shaft; When the water is flowing, the pressing seat is pressed by the composite key, the first pressing inclined surface moves downward and squeezes the second driving inclined surface, and drives the telescopic shaft to push the plug, the plug compresses the second spring and blocks the first water outlet, and the water inlet and the second water outlet are connected; the pressing seat is released and reset by the composite key, the water pressure in the installation cavity is greater than the elasticity of the second spring, and maintains the state of the plug blocking the first water outlet, and the water pressure in the installation cavity pushes the telescopic shaft to reset and compresses the first spring, the telescopic shaft and the plug are stretched to the longest length state, and the second pressing inclined surface and the first driving inclined surface are staggered in the direction perpendicular to the axial direction of the telescopic shaft; the pressing seat is pressed by the composite key again, the second pressing inclined surface moves downward and squeezes the first driving inclined surface, and drives the telescopic shaft to pull out the plug, the plug opens the first water outlet and blocks the second water outlet, and the state of blocking the second water outlet is maintained by the elastic force of the second spring and the hydraulic force; after the water outlet body stops water, the flow cutting member returns to the initial state.

6. A pulling head according to claim 5, characterized in that: A telescopic groove is provided at one end of the plug facing the telescopic shaft, and the groove opening of the telescopic groove is a contraction opening; a piston head is provided at one end of the telescopic shaft facing the plug, a telescopic rod inserted into the telescopic groove is provided at the end of the piston head, and a limit head with a diameter larger than the contraction opening is provided at the end of the telescopic rod, and the travel limit structure is formed between the telescopic groove and the telescopic rod; the telescopic shaft moves back and forth in the installation cavity through the piston head, and the outer ring sleeve of the piston head is provided with a V-shaped opening sealing ring with its mouth facing the plug.

7. A pulling head according to claim 2, characterized in that: A compressed third spring is provided between the pressing seat and the water outlet body, and the third spring pushes the pressing seat away from the pressing end of the flow cutting member; the water outlet body is provided with limit plates on both sides of the pressing seat, and the two limit seats are provided with undercuts for limiting the pressing seat from being separated from the installation position; the tops of the two limit plates are provided with parallel and opposite strip openings, and the strip openings are parallel to the movable direction of the pressing seat, and a constriction is formed at the openings; the top of the pressing seat is provided with an arc groove connected with the two strip openings; the rotating shaft of the composite key is inserted into the two strip openings and presses against the arc groove, and the composite key rotates on the arc groove through the rotating shaft, or / and, the composite key reciprocates in the two strip openings through the rotating shaft and presses the pressing seat.

8. A pulling head according to claim 2, characterized in that: The linkage is telescopically installed along the axial direction of the water outlet body, and a docking port is provided at the periphery of the driving end which is parallel to the movable direction of the pressing seat, and the depth of the docking port is greater than the diameter of the driving head, and the driving head of the composite key is inserted into the docking port and drives the linkage to move back and forth along the axial direction of the water outlet body; the water volume adjustment member is columnar, telescopically installed in the telescopic channel and driven by the linkage; the water volume adjustment member blocks the telescopic channel, a water groove is provided in the middle part, and an adjustment hole connected to the water groove is provided at the periphery, and the notch of the water groove is connected to the water inlet of the installation cavity through the telescopic channel; the water hole is provided on the moving track of the adjustment hole, and the water volume adjustment member adjusts the water flow through the water inlet channel by the degree of staggering between the adjustment hole and the water hole.

9. A pulling head according to claim 8, characterized in that: The composite key is provided with a pressing roller coaxial with its rotating shaft. When the pressing roller rotates in one direction and reaches the limit position, the regulating hole and the water hole are completely connected, and the water flow is maximum. Alternatively, when the pressing roller rotates in the other direction and reaches the limit position, the regulating hole and the water hole are completely staggered, and the water flow is minimum.

10. A pulling head according to claim 9, characterized in that: The pull-out head also includes a shell, one end of which is an installation opening, and the other end is an installation constriction; the water outlet body is inserted from the installation opening of the shell, the outer periphery of the water inlet end of the water outlet body is provided with a thread, and extends from the installation constriction of the shell, and is tightened and fixed by a nut; the shell is provided with a clearance hole corresponding to the composite switch assembly, and the pressing roller is connected to the composite key through the clearance opening and exposed from the clearance opening.

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