Drawing faucet

Abstract

The utility model discloses a drawing faucet which comprises a faucet body, a drawing pipe, a drawing head and a recycling mechanism, the drawing pipe is inserted into the faucet body in a penetrating mode, and one end of the drawing pipe is connected with the drawing head. The recycling mechanism is installed in the faucet body and connected with the drawing pipe so that the drawing pipe can be driven to be recycled after the drawing pipe is drawn, and the drawing head can be reset. According to the utility model, the recovery mechanism is arranged in the faucet main body, so that the problem of abnormal sound caused by adopting a heavy hammer for recovery in the prior art is solved, the space below the drawing faucet is not occupied, the on-table assembly and disassembly can be realized, and the operation of a user is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of faucets, in particular to a pull-out faucet. Background Art

[0002] A pull-out faucet can be used to flush to various locations in the sink. After flushing, the pull-out tube is released and the pull-out tube is pulled back into the faucet body by a weight installed on the pull-out tube. However, during the process of pulling out and recovering the pull-out tube, the movement of the weight is often hindered by the under-counter pipes and the sink shell or other drainage devices, causing abnormal noises or even failure to achieve the recovery effect, affecting the user experience. In addition, with the increase in kitchen appliances, disinfection cabinets, dishwashers and other kitchen appliances are often installed under the sink, resulting in a lack of space for arranging the weight under the pull-out faucet. For this reason, some people set a coil spring recovery assembly under the faucet to recover the pull-out tube. Although this method can solve the problem of abnormal noises caused by the movement of the weight, it also has the following shortcomings: the coil spring recovery assembly is set under the pull-out faucet, which still takes up the space below, and it is an under-counter assembly and disassembly method, which is relatively inconvenient to operate. Utility Model Content

[0003] The utility model aims to solve the technical problems existing in the prior art and provides a pull-out faucet, which can save space under the pull-out faucet and can be assembled and disassembled on a table, making operation more convenient.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a pull-out faucet, including a faucet body, a pull-out tube, a pull-out head and a recovery mechanism, the pull-out tube is inserted into the faucet body, and one end of the pull-out tube is connected to the pull-out head; the recovery mechanism is installed in the faucet body and connected to the pull-out tube, so as to drive the pull-out tube to retract after the pull-out tube is pulled, so that the pull-out head is reset.

[0005] Furthermore, the recovery mechanism is a coil spring recovery mechanism, which includes a shell, a rotating wheel and a coil spring. The rotating wheel is rotatably installed on the shell and connected to the pulling tube; the coil spring is arranged in the shell, and its two ends act on the shell and the rotating wheel respectively, and are used to drive the rotating wheel to rotate along a first direction that can retract the pulling tube; the coil spring has an initial preload force.

[0006] Furthermore, the rotating wheel includes a rotating shaft and a rotating disk, the rotating shaft is rotatably connected to the rotating disk, and the two are coaxially arranged; a circle of ratchet teeth is provided on the inner side surface of the rotating disk, and the rotating shaft is provided with a pawl that cooperates with the ratchet teeth, so that the rotating shaft can only rotate relative to the rotating disk in a second direction opposite to the first direction; the two ends of the coil spring are respectively a fixed end and a movable end, the fixed end is connected to the housing, and the movable end is connected to the rotating shaft.

[0007] Furthermore, the shell includes a main shell, a first cover body and a second cover body, the first cover body is connected to one axial end of the main shell, the coil spring is arranged between the first cover body and the main shell, the second cover body is connected to the other axial end of the main shell, the turntable is arranged between the second cover body and the main shell, and the rotating shaft is passed through the main shell; the turntable is provided with an adjustment fixing hole, and the second cover body is provided with a yield hole corresponding to the adjustment fixing hole.

[0008] Furthermore, one end of the rotating shaft extends out of the shell and constitutes a rotating operating portion, and an outer surface of the shell is provided with a rotating direction indicating mark corresponding to the second direction.

[0009] Furthermore, a guide rope is wound around the rotating wheel, and one end of the guide rope extends out of the shell and is connected to the pulling tube.

[0010] Furthermore, the rotating wheel is connected to the drawing tube through a gear transmission structure.

[0011] Furthermore, the gear transmission structure includes a first gear coaxially connected to the rotating wheel and a rotating member rotatably installed in the faucet body, the rotating member includes a second gear coaxially connected and a transmission wheel, the first gear is meshed with the second gear; the pulling tube is a corrugated hose, and the outer peripheral surface of the transmission wheel is provided with a plurality of protrusions evenly distributed along its circumference, and the protrusions are meshed with the corrugated grooves of the corrugated hose.

[0012] Furthermore, the convex portion is in the shape of an elongated arc and is adapted to the outer peripheral surface of the corrugated hose.

[0013] Furthermore, the faucet body is provided with a first mounting port, and the recovery mechanism enters and exits the faucet body from the first mounting port; it also includes an outer cover, which is detachably connected to the first mounting port of the faucet body and covers the recovery mechanism installed in the faucet body; the faucet body is also provided with a second mounting port for installing the valve core, and the first mounting port and the second mounting port are located on opposite sides of the faucet body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The utility model installs a recovery mechanism in the faucet body and connects it to the pull-out tube, so as to drive the pull-out tube to retract after the pull-out tube is pulled, so that the pull-out head is reset. Therefore, the recovery mechanism of the utility model solves the problem of abnormal noise existing in the prior art of using a heavy hammer for recovery, and not only does it not occupy the space under the pull-out faucet, but it can also be assembled and disassembled on the counter, making it more convenient for users to operate.

[0016] 2. The coil spring has an initial preload force, ensuring that the drawer head is fully retracted. Specifically, the rotating wheel includes the rotating shaft and the rotating disk, which are coordinated by a pawl and ratchet teeth. This allows the user to adjust the initial preload force of the coil spring by rotating the rotating shaft relative to the rotating disk in a second direction, ensuring that the coil spring remains tightened throughout the entire process and further ensuring that the drawer head can be fully retracted.

[0017] 3. The runner is connected to the pulling pipe through a guide rope or gear transmission structure, and has the characteristics of simple structure and easy installation.

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the pull-out faucet of the present invention is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded schematic diagram of the first embodiment of the utility model;

[0020] Figure 2 This is an exploded schematic diagram of the recycling mechanism of the utility model in Example 1;

[0021] Figure 3 This is an exploded schematic diagram of the rotating wheel of the utility model in the first embodiment (including the first cover);

[0022] Figure 4 is a cross-sectional view of the recovery mechanism of the utility model in embodiment 1;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model in the first embodiment;

[0024] Figure 6 It is a cross-sectional view (partial cross-sectional view) of the first embodiment of the utility model;

[0025] Figure 7 This is Example 1 Figure 6 A magnified schematic diagram of part A;

[0026] Figure 8 This is an exploded schematic diagram of the second embodiment of the present invention (partial);

[0027] Figure 9 This is a cross-sectional view of the second embodiment of the present invention Figure 1 (Partial cross-section);

[0028] Figure 10 This is a cross-sectional view of the second embodiment of the present invention Figure 2 (Partial cross-section);

[0029] Figure 11 This is Example 2 Figure 10 An enlarged schematic diagram of part B;

[0030] In the figure, 1. faucet body; 11. valve body; 111. first mounting port; 12. elbow; 2. pull-out head; 3. pull-out tube; 31. corrugated groove; 4. shell; 41. main shell; 42. first cover; 421. rotation direction indicator; 43. second cover; 431. clearance hole; 5. coil spring; 6. rotating wheel; 61. rotating shaft; 611. pawl; 612. slot; 62. turntable; 621. ratchet teeth; 622. winding part; 623. adjustment fixing hole; 63. first gear; 7. outer cover; 8. guide rope; 9. rotating part; 91. second gear; 92. transmission wheel; 921. convex part. DETAILED DESCRIPTION

[0031] In this utility model, the terms "first," "second," etc. are used only to distinguish similar objects, not to describe a specific order or precedence, and should not be understood to indicate or imply relative importance. In addition, in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the term "connected" and the like should be understood in a broad sense, and may refer to a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, etc. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] See Figure 1-Figure 7As shown, a pull-out faucet of the present invention includes a faucet body 1, a pull-out tube 3, a pull-out head 2 and a recovery mechanism. The pull-out tube 3 is inserted into the faucet body 1, and one end of the pull-out tube 3 is connected to the pull-out head 2. The recovery mechanism is installed in the faucet body 1 and is connected to the pull-out tube 3 to drive the pull-out tube 3 to retract after the pull-out tube 3 is pulled, so that the pull-out head 2 is reset. Specifically, a first mounting port 111 is provided on the side of the faucet body 1, and the recovery mechanism enters and exits the faucet body 1 from the first mounting port 111. The utility model also includes an outer cover 7, which is detachably connected to the first mounting port 111 of the faucet body 1 and covers the recovery mechanism installed in the faucet body 1. The outer cover 7 is specifically threadedly connected to the first mounting port 111 of the faucet body 1, but the detachable connection method of the outer cover 7 and the faucet body 1 is not limited to this. The faucet body 1 includes a valve body 11 and an elbow 12. The valve body 11 is equipped with a recovery mechanism and a valve core. In other words, a first mounting port 111 is provided on the valve body 11. The valve body 11 also has a second mounting port for installing the valve core. The second mounting port and the first mounting port 111 are located on opposite sides of the valve body 11. One end of the elbow 12 is connected to the top of the valve body 11. The pull-out tube 3 is provided through the valve body 11 and the elbow 12. The pull-out head 2, also known as a shower head, is fitted at the other end of the elbow 12 in the reset state. Figure 1 shown.

[0035] like Figure 1 、 Figure 2 As shown, the retraction mechanism includes a housing 4, a rotating wheel 6, and a coil spring 5. The rotating wheel 6 is rotatably mounted on the housing 4 and connected to the drawing tube 3. The coil spring 5 is disposed within the housing 4, with its two ends acting on the housing 4 and the rotating wheel 6, respectively, to drive the rotating wheel 6 to rotate in a first direction that can retract the drawing tube 3. The coil spring 5 has an initial preload to ensure that the drawing head 2 can be retracted into place in the initial state.

[0036] Further, such as Figure 3 As shown, the rotating wheel 6 includes a rotating shaft 61 and a rotating disk 62. The rotating shaft 61 is rotatably connected to the rotating disk 62, and the two are coaxially arranged. The inner side of the rotating disk 62 is provided with a circle of ratchet teeth 621, and the rotating shaft 61 is provided with a pawl 611 that cooperates with the ratchet teeth 621, so that the rotating shaft 61 can only rotate relative to the rotating disk 62 in a second direction opposite to the first direction. There are multiple pawls 611, and the multiple pawls 611 are distributed along the circumference of the rotating shaft 61. Specifically, this embodiment uses three pawls 611 as an example, but is not limited to this. The two ends of the coil spring 5 are respectively a fixed end and a movable end. The fixed end is connected to the housing 4, and the movable end is connected to the rotating shaft 61. The side of the rotating shaft 61 is provided with a slot 612, and the movable end of the coil spring 5 is inserted into the slot 612.

[0037] The housing 4 includes a main housing 41, a first cover 42, and a second cover 43. The first cover 42 is connected to one axial end of the main housing 41. A coil spring 5 is disposed between the first cover 42 and the main housing 41. The second cover 43 is connected to the other axial end of the main housing 41. A rotary disc 62 is disposed between the second cover 43 and the main housing 41. A rotating shaft 61 is disposed through the main housing 41, with one end of the rotating shaft 61 extending between the first cover 42 and the main housing 41 to facilitate connection with the coil spring 5, while the other end of the rotating shaft 61 extends between the second cover 43 and the main housing 41 to facilitate engagement with the rotary disc 6. One end of the rotating shaft 61 extends outside the housing 4 and constitutes a rotation operating portion. A rotation direction indicator 421 corresponding to the second direction is provided on the outer surface of the housing 4. Specifically, one end of the rotating shaft 61 extends outside the first cover 42, and the first cover 42 is provided with a rotation direction indicator 421. The first cover 42 and the main shell 41 are snap-connected, and the second cover 43 and the main shell 41 are snap-connected, but the present invention is not limited thereto. In other embodiments, the snap-connection method is replaced by threaded connection or screw locking.

[0038] The turntable 62 is provided with an adjustment hole 623 located in the middle thereof. This hole 623 is used to engage a tool to secure the turntable 62 when adjusting the initial preload of the coil spring 5. A clearance hole 431 corresponding to the adjustment hole 623 is provided on the end of the housing 4 facing the interior of the faucet body 1 (specifically, on the second cover 43 of the housing) to facilitate the passage of a tool.

[0039] In this embodiment, a guide rope 8 is wound around the rotating wheel 6. One end of the guide rope 8 extends outside the second cover 43 of the housing 4 and is connected to the drawer tube 3. Specifically, a winding portion 622 is provided on the rotating disk 62 of the rotating wheel 6. The winding portion 622 is used to wind the guide rope 8. The drawer tube 3 is provided with a buckle position for the guide rope 8 to facilitate connection with the guide rope 8.

[0040] After the recovery mechanism is installed into the faucet body 1 from the first installation port 111, when adjusting the pre-tightening force of the coil spring 5, first use a corresponding tool (such as a screw, etc.) to pass through the clearance hole 431 of the second cover body 43 (the tool can be inserted into the faucet body 1 from the bottom of the faucet body 1, or inserted into the faucet body 1 from the second installation port of the faucet body 1 for installing the valve core), insert it into the adjustment fixing hole 623 of the turntable 62, fix the turntable 62 to limit the rotation of the turntable 62; then, rotate one end of the rotating shaft 61 along the rotation direction indicator 421 of the first cover body 42 to rotate the rotating shaft 61 in the second direction. During the rotation of the rotating shaft 61, the pawl 611 on the rotating shaft 61 slides along the inclined surface of one side of the ratchet; when the rotating shaft 61 is rotated into place, under the meshing action of the pawl 611 and the ratchet, the rotating shaft 61 will not rotate in the opposite direction (i.e., in the first direction) relative to the turntable 62, thereby achieving the effect of pre-tightening the coil spring 5. During use, since the coil spring 5 is always in a tightened state, the pawl 611 constantly exerts a rotational force in the first direction relative to the ratchet teeth 621, thereby enabling the rotating shaft 61 and the rotating disk 62 to maintain synchronous rotation in the first direction, thereby achieving the work recovery function. The initial preload force of the coil spring 5 can be adjusted using the aforementioned method, or the coil spring 5 can be precisely machined to impart an initial preload force immediately upon installation within the housing 4. In this case, the rotating disk 6 can be formed as an integral component, i.e., the rotating shaft 61 and the rotating disk 62 can be integrally formed.

[0041] When the drawing head 2 is withdrawn, the drawing tube 3 is withdrawn from the housing 4 with the lead rope 8, and the rotating disk 62 and the rotating shaft 61 are rotated together, causing the coil spring 5 to tighten and store elastic potential energy. At this time, the rotating shaft 61 has a tendency to rotate in the opposite direction (i.e., in the first direction), causing the lead rope 8 to retract. When the force applied to the drawing head 2 disappears or is less than the pulling force of the lead rope 8 to retract, the coil spring 5 releases the stored elastic potential energy, driving the rotating shaft 61 and the rotating disk 62 to rotate in the first direction, retracting the lead rope 8 and winding it around the rotating disk 62, thereby driving the drawing tube 3 to retract until the drawing head 2 is restored.

[0042] The utility model provides a pull-out faucet, in which the recovery mechanism is installed in the faucet body 1, which solves the problem of abnormal noise in the prior art using a heavy hammer for recovery. It not only does not occupy the space under the pull-out faucet, but can also be assembled and disassembled on the counter, making it more convenient for users to operate.

[0043] Example 2

[0044] See Figures 8-11As shown, a pull-out faucet of the present invention is different from the above-mentioned embodiment 1 in that: the rotating wheel 6 is connected to the pull-out tube 3 through a gear transmission structure. Specifically, the gear transmission structure includes a first gear 63 coaxially connected to 6 and a rotating member 9 rotatably installed in the faucet body 1, and the rotating member 9 includes a second gear 91 and a transmission wheel 92 coaxially connected, and the first gear 63 is meshed with the second gear 91. The pull-out tube 3 is a corrugated hose, and the outer peripheral surface of the transmission wheel 92 is provided with a plurality of protrusions 921 uniformly distributed along its circumference, and the protrusions 921 are meshed with the corrugated grooves 31 of the corrugated hose. Specifically, the protrusions are in the shape of a long arc and are adapted to the outer peripheral surface of the corrugated hose so that the meshing surface between the protrusions 921 and the corrugated grooves 31 is larger, thereby making it easier for the corrugated hose to drive the transmission wheel 92 to rotate.

[0045] The first gear 63 is specifically coaxially connected to the rotating disk 62 of the rotating wheel 6 and extends out of the second cover 43 of the housing 4 .

[0046] When the drawing head 2 is withdrawn, the drawing tube 3 rotates the transmission wheel 92, which in turn rotates the second gear 91, causing the second gear 91 to rotate the first gear 63, thereby tightening the coil spring 5 and storing elastic potential energy. When the force applied to the drawing head 2 disappears or is less than the pulling force of the retracting rope 8, the coil spring 5 releases the stored elastic potential energy, driving the rotating shaft 61 and the rotating disk 62 to rotate in the first direction. The rotating disk 62 drives the first gear 63 to rotate, and the first gear 63 drives the second gear 91 and the transmission wheel 92 to rotate, causing the drawing tube 3 to be retracted and the drawing head 2 to be reset.

[0047] The utility model provides a pull-out faucet, and the parts not involved are the same as those in the prior art or can be implemented by using the prior art.

[0048] The above embodiments are only used to further illustrate a pull-out faucet of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the technical solution of the present invention.

Claims

1. A pull-out faucet, comprising a faucet body, a pull-out tube, a pull-out head, and a recovery mechanism, wherein the pull-out tube is inserted into the faucet body, and one end of the pull-out tube is connected to the pull-out head; characterized in that: The recovery mechanism is installed in the faucet body and is connected to the pull-out tube, so as to drive the pull-out tube to retract after the pull-out tube is pulled, thereby resetting the pull-out head.

2. The pull-out faucet according to claim 1, characterized in that: The recovery mechanism is a coil spring recovery mechanism, which includes a shell, a rotating wheel and a coil spring. The rotating wheel is rotatably installed on the shell and connected to the pulling tube. The coil spring is arranged in the shell, and its two ends act on the shell and the rotating wheel respectively, and are used to drive the rotating wheel to rotate along a first direction that can retract the pulling tube. The coil spring has an initial pre-tightening force.

3. The pull-out faucet according to claim 2, characterized in that: The rotating wheel includes a rotating shaft and a rotating disk, the rotating shaft is rotatably connected to the rotating disk, and the two are coaxially arranged; the inner side surface of the rotating disk is provided with a circle of ratchet teeth, and the rotating shaft is provided with a pawl that cooperates with the ratchet teeth, so that the rotating shaft can only rotate relative to the rotating disk in a second direction opposite to the first direction; the two ends of the coil spring are respectively a fixed end and a movable end, the fixed end is connected to the housing, and the movable end is connected to the rotating shaft.

4. The pull-out faucet according to claim 3, characterized in that: The shell includes a main shell, a first cover body and a second cover body. The first cover body is connected to one axial end of the main shell. The coil spring is arranged between the first cover body and the main shell. The second cover body is connected to the other axial end of the main shell. The turntable is arranged between the second cover body and the main shell. The rotating shaft passes through the main shell. The turntable is provided with an adjustment fixing hole, and the second cover body is provided with a yield hole corresponding to the adjustment fixing hole.

5. The pull-out faucet according to claim 3 or 4, characterized in that: One end of the rotating shaft extends out of the shell and constitutes a rotating operating portion. The outer surface of the shell is provided with a rotating direction indicating mark corresponding to the second direction.

6. The pull-out faucet according to any one of claims 2 to 4, characterized in that: A guide rope is wound around the rotating wheel, and one end of the guide rope extends out of the shell and is connected to the pulling tube.

7. The pull-out faucet according to any one of claims 2 to 4, characterized in that: The rotating wheel is in transmission connection with the drawing tube via a gear transmission structure.

8. The pull-out faucet according to claim 7, characterized in that: The gear transmission structure includes a first gear coaxially connected to the rotating wheel and a rotating part rotatably installed in the faucet body, the rotating part includes a second gear coaxially connected and a transmission wheel, the first gear is meshed with the second gear; the pulling tube is a corrugated hose, and the outer peripheral surface of the transmission wheel is provided with a plurality of protrusions evenly distributed along its circumference, and the protrusions are meshed with the corrugated grooves of the corrugated hose.

9. The pull-out faucet according to claim 8, characterized in that: The convex portion is in the shape of an elongated arc and is adapted to the outer peripheral surface of the corrugated hose.

10. The pull-out faucet according to claim 1, characterized in that: The faucet body is provided with a first mounting port, and the recovery mechanism enters and exits the faucet body from the first mounting port; it also includes an outer cover, which is detachably connected to the first mounting port of the faucet body and covers the recovery mechanism installed in the faucet body; the faucet body is also provided with a second mounting port for installing the valve core, and the first mounting port and the second mounting port are located on opposite sides of the faucet body.

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