Pulling device and pulling tap

Abstract

The application discloses a pulling device, which comprises a shell and a pulling assembly. The shell is provided with a pipe hole for a hose to pass through. The pulling assembly comprises a rotating drum and a guide rod. The rotating drum is provided with a matching hole and an outer peripheral wall for the hose to be spirally arranged. The guide rod passes through the matching hole and enters the rotating drum along the axial direction of the rotating drum. When the hose is arranged on the rotating drum, the hose comprises an arranged section and a pulling section. The arranged section is arranged on the outer peripheral wall of the rotating drum. One end of the pulling section is connected with the arranged section, and the other end of the pulling section passes through the pipe hole and is exposed outside the shell. When the rotating drum rotates along with the hose being pulled, the rotating drum can move along the guide rod, so that the arranged section continuously approaches the pipe hole along the direction of the guide rod. The pulling device can reduce the friction between the hose and the pipe hole, the user has a better feeling when using the hose, and the service life of the hose is longer.

Description

Technical Field

[0001] This invention relates to the field of bathroom products, and in particular to a pull-out device and a pull-out faucet. Background Technology

[0002] Pull-out faucets are bathroom products that allow users to pull out and change the desired water outlet position. Typically, a retractable hose is located inside the pull-out device, with one end of the hose connected to the faucet extending out of the device through an outlet hole. However, during the pulling process, as the hose stretches, the rotating cylinder remains in its axial position, causing the angle between the hose and the outlet hole axis to gradually increase. This makes the hose prone to friction with the side wall of the outlet hole, resulting in a sticky feeling. Over time, the hose is prone to wear, affecting the product's lifespan. Summary of the Invention

[0003] The present invention provides a pull-out device and a pull-out faucet, which aims to solve at least some of the technical problems in the prior art.

[0004] To achieve the above objectives, a first aspect of the present invention provides a pull-out device, comprising: A housing having a port for a flexible tube to pass through; A pull-out assembly includes a rotating cylinder and a guide rod. The rotating cylinder has a mating hole and an outer peripheral wall for the hose to be spirally wound around in sequence. The guide rod passes through the mating hole and enters the rotating cylinder along the axial direction of the rotating cylinder. When the hose is wound around the rotating cylinder, the hose includes a winding section and a pull-out section. The winding section is wound and fits against the outer peripheral wall of the rotating cylinder. One end of the pull-out section is connected to the winding section, and the other end passes through the tube hole and protrudes outside the housing. As the rotating drum rotates with the hose being pulled, it can move along the guide rod so that the winding section continuously approaches the pipe hole along the direction of the guide rod.

[0005] The pull-out device provided according to the first aspect of the present invention can reduce the friction between the hose and the pipe hole, improve the user's feel, and extend the service life of the hose.

[0006] According to some embodiments of the present invention, when the hose is not pulled out, the axis of the pull-out section is in the same plane as the axis of the tube hole.

[0007] According to some embodiments of the present invention, the guide rod is a helical rod.

[0008] According to some embodiments of the present invention, the pitch of the helical rod is equal to the outer diameter of the hose.

[0009] According to some embodiments of the present invention, a positioning component is further included, wherein one end of the rotating cylinder located on the side of the pull-out section opposite to the winding section is designated as the first end, and the other end is designated as the second end. The positioning component is connected to the first end and fixedly disposed in the axial direction of the rotating cylinder. The pull-out assembly also includes a first elastic element disposed in the rotating cylinder. When the hose is not pulled out, one end of the first elastic element abuts against the positioning assembly, and the other end abuts against the inner wall surface of the second end.

[0010] According to some embodiments of the present invention, the second end of the rotating drum extends into an inner cylinder along the axis of the rotating drum in a direction close to the first end. At least one end of the inner cylinder along the axis of the rotating drum is provided with a wall surface, and the mating hole is provided on the wall surface. The second end of the rotating drum extends into an inner cylinder along the axis of the rotating drum towards the first end. One end of the inner cylinder along the axis of the rotating drum is provided with a wall surface, and the wall surface is provided with the mating hole. The other end is provided with a rotating plate that can rotate around the axis of the rotating drum, and the rotating plate is provided with the mating hole.

[0011] According to some embodiments of the present invention, a positioning component and a stopping component are further included, wherein: The positioning component is fixedly disposed in the axial direction of the rotating cylinder and at least partially passes through the rotating cylinder. The rotating cylinder is fixed relative to the rotating cylinder in the circumferential direction. The positioning component is provided with a first sliding groove on the side near the inner circumferential wall of the rotating cylinder. The first sliding groove is parallel to the axis of the rotating cylinder. At least one positioning groove is provided on one side wall of the first sliding groove. The stop assembly is fixedly disposed on the inner peripheral wall of the rotating drum or on one end of the rotating drum near the positioning assembly. The stop assembly includes a first sliding cavity and a telescopic assembly. The extension direction of the first sliding cavity forms an angle with the axis of the rotating drum, and the angle is greater than 0° and less than 180°. The telescopic assembly is slidably disposed in the first sliding cavity. The telescopic assembly is provided with a stop rod protruding from the first sliding cavity. The stop rod is slidably disposed in the first sliding groove and has a tendency to move towards the side wall where the positioning groove is located. The extension line of the positioning groove along the direction perpendicular to the axis of the rotating drum is located on the sliding path of the stop rod along the first direction.

[0012] According to some embodiments of the present invention, the stop assembly includes a slidable first slider, the first slider having a first sliding cavity, the first slider having a first position and a second position in the extending direction of the first sliding cavity, and the first sliding cavity having a first inner wall, the first inner wall being disposed on the side of the positioning groove opposite to the first sliding groove. When the first slider is in the first position, the first inner wall abuts against the telescopic component; when the first slider is in the second position, the first inner wall and the telescopic component are spaced apart.

[0013] According to some embodiments of the present invention, the stop assembly further includes a second sliding cavity, in which the first slider is slidably disposed, and the second sliding cavity is provided with a through groove on the side near the positioning assembly for the stop rod to pass through and slide.

[0014] According to some embodiments of the present invention, the positioning component is further provided with a second slide groove and a third slide groove on the side of the inner peripheral wall of the rotating cylinder. The second slide groove and the third slide groove are sequentially arranged on the side of the positioning groove opposite to the first slide groove, and are both parallel to the first slide groove. The first slider is provided with a slide rod that can slide in the second slide groove or the third slide groove. Specifically, when the slide bar slides in the second slide groove, the first slider is in the first position, and when the slide bar slides in the third slide groove, the first slider is in the second position.

[0015] According to some embodiments of the present invention, a switching channel is further provided on the side of the positioning component near the inner peripheral wall of the rotating cylinder, and the two ends of the second slide groove and the third slide groove are connected through the switching channel, wherein the switching channel is inclined from the third slide groove to the second slide groove along the first direction.

[0016] A second aspect of the present invention provides a pull-out faucet, comprising: the pull-out device described above.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A schematic diagram of the pull-out device provided in an embodiment of the present invention is shown; Figure 2 This diagram shows the structural schematic of the pull-out device provided in an embodiment of the present invention, excluding the housing. Figure 3 It shows Figure 2 A schematic diagram showing the exploded view of the part shown; Figure 4 It shows Figure 2 The portion shown is a sectional view along the YY section. Figure 5 A schematic diagram of the positioning component provided in an embodiment of the present invention is shown; Figure 6 This diagram shows an overall schematic of the stop component provided in an embodiment of the present invention; Figure 7 A cross-sectional view of the stop assembly provided in an embodiment of the present invention along the XX section is shown; Figure 8 An exploded view of the stop component provided in an embodiment of the present invention is shown; Figure 9 This diagram illustrates a portion of the motion of the pull-out device provided in an embodiment of the present invention. Figure 10 This shows another part of the motion diagram of the pull-out device provided in an embodiment of the present invention; Figure label: 1000. Pull-out device; 100. Rotating cylinder; 110. First end; 120. Second end; 130. Inner cylinder; 140. Rotating plate; 150. Mating hole; 160. Rib; 200. Flexible hose; 210. Winding section; 220. Pull-out section; 300. Screw rod; 400, Positioning component; 410, First slide rail; 411, Positioning groove; 420, Second slide rail; 430, Third slide rail; 440, Switching channel; 450, Guide groove; 500, Stop assembly; 510, First slider; 511, First sliding cavity; 5111, First inner wall; 5112, Through groove; 512, Slide rod; 520, Second slider; 521, Stop rod; 530, Second elastic element; 540, Main body; 541, Second sliding cavity; 600. First elastic element; 700, shell; 710, bore. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] refer to Figure 1-4 In some specific embodiments of the present invention, a pull-out device 1000 is provided, including a housing 700 and a pull-out assembly.

[0021] The housing 700 is provided with a pipe hole 710 for the flexible hose 200 to pass through. The flexible hose 200 in the pull-out device 1000 can partially pass through the pipe hole 710 and protrude outside the housing 700 for the user to pull out. In some embodiments, the housing 700 can be configured in various ways. For example, the housing 700 may only include a cover, with the pipe hole 710 located on the cover. Therefore, when installing the pull-out device 1000, the user can first cut out a cavity in the wall to accommodate the pull-out device 1000. When the pull-out device 1000 is directly inserted into the cavity, only the cover faces the user. In other embodiments, the housing 700 may also consist of a cover and a receiving box, which together form the receiving cavity.

[0022] The pull-out assembly includes a rotating cylinder 100 and a guide rod. The rotating cylinder 100 is generally a hollow cylinder. Both ends of the rotating cylinder 100 can be open or closed at one end and open at the other. The rotating cylinder 100 is provided with a mating hole 150 for cooperating with the guide rod, and an outer peripheral wall on which the flexible hose 200 is spirally wound once. The guide rod passes through the mating hole 150 and enters the rotating cylinder 100 axially.

[0023] When the hose 200 is wound around the rotating drum 100, the hose 200 includes a winding section 210 and a pull-out section 220. The winding section 210 is wound around and attached to the outer peripheral wall of the rotating drum 100. One end of the pull-out section 220 is connected to the winding section 210, and the other end passes through the pipe hole 710 and is exposed outside the housing 700.

[0024] As the hose 200 is pulled and rotates, the rotating drum 100 can move along the guide rod so that the winding section 210 continuously approaches the pipe hole 710 along the direction of the guide rod.

[0025] Understandably, if the rotating drum 100 can only rotate but cannot move, as the hose 200 is pulled out, the connection between the pulling section 220 and the winding section 210 will gradually move away from the pipe hole 710. The angle (on the acute angle side) between the pulling section 220 and the axis of the rotating drum 100 will become smaller and smaller. As a result, the friction between the pulling section 220 and the pipe hole 710 will gradually increase, which will have a significant impact on the user's feel and will easily damage the hose 200.

[0026] In this embodiment, during the rotation of the drum 100, it can gradually move closer to the pull-out section 220 from the winding section 210, thereby avoiding the gradual increase of the distance between the connection between the pull-out section 220 and the winding section 210 and the pipe hole 710, and preventing the friction between the pull-out section 220 and the pipe hole 710 from increasing. This results in a better user experience and a longer service life for the hose 200.

[0027] In some embodiments of the present invention, when the hose 200 is not pulled out, the axis of the pull-out section 220 is in the same plane as the axis of the pipe hole 710.

[0028] In this embodiment, the axis of the pull-out section 220 and the axis of the tube hole 710 are in the same plane. Therefore, when the hose 200 is pulled out, there is no angle between the hose 200 and the tube hole 710 in the axial direction of the rotating drum 100, so the friction is minimal.

[0029] refer to Figure 3 In some embodiments of the present invention, the guide rod is a helical rod 300.

[0030] When the rotating drum 100 rotates, the mating hole 150 also rotates at the same time, and under the guidance of the screw rod 300, the rotating drum 100 moves along the axial direction of the screw rod 300, thereby converting the rotation of the rotating drum 100 along its own axis (the axis of the screw rod 300) into movement along the axial direction of the screw rod 300.

[0031] In some embodiments of the present invention, the pitch of the screw rod 300 is equal to the outer diameter of the hose 200. It should be specifically noted here that the pitch of the screw rod 300 refers to the distance the rotating drum 100 moves along the axial direction of the screw rod 300 when the drum 100 rotates one revolution on the screw rod 300.

[0032] In this embodiment, the pitch of the screw rod 300 is set to be equal to the outer diameter of the hose 200. Therefore, when the rotating drum 100 rotates once around the axis of the screw rod 300, the distance it moves along the axis of the screw rod 300 is exactly equal to the outer diameter of the hose 200 that has been pulled away from the outer peripheral wall of the rotating drum 100. This ensures that at any given time, the axis of the pulling section 220 and the axis of the pipe hole 710 are in the same plane, thereby reducing friction.

[0033] refer to Figure 2-4 In some specific embodiments of the present invention, the pull-out device 1000 further includes a positioning component 400. The rotating cylinder 100 includes a first end 110 and a second end 120. Specifically, the first end 110 is disposed on the side of the pull-out section 220 away from the winding section 210, and the other end of the rotating cylinder 100 is the second end 120. The positioning component 400 is connected to the first end 110 and is fixedly disposed in the axial direction of the rotating cylinder 100.

[0034] The pull-out assembly also includes a first elastic element 600 disposed in the rotating cylinder 100. Specifically, the first elastic element 600 can be a spring. When the hose 200 is not pulled out, one end of the first elastic element 600 abuts against the positioning component 400, and the other end abuts against the inner wall surface of the second end 120.

[0035] In this embodiment, the first elastic element 600 can realize the reset function of the pull-out device 1000. When the hose 200 is pulled out, the rotating cylinder 100 gradually moves towards the first end 110. The first elastic element 600 is compressed and accumulates elastic potential energy. When the user releases the hose 200 (or uses the reset function of the pull-out device 1000), since the positioning component 400 is fixed in the axial direction of the rotating cylinder 100, the first elastic element 600 restores its shape and provides elastic force to the rotating cylinder 100 away from the first end 110, giving it a tendency to move away from the first end 110. At this time, due to the cooperation of the mating hole 150 and the screw rod 300, the rotating cylinder 100 rotates around the axis of the screw rod 300 while moving (the rotation direction is opposite to the rotation direction when the hose 200 is pulled out), and uses the friction between the outer peripheral wall and the hose 200 to pull the hose 200 back so that it is re-wound onto the outer peripheral wall, thereby realizing the reset of the hose 200.

[0036] refer to Figure 4 In some specific embodiments of the present invention, along the axial direction of the rotating drum 100, the second end 120 of the rotating drum 100 extends into an inner cylinder 130 towards the first end 110. The inner cylinder 130 is generally hollow, and a wall surface is provided at one end along the axis of the rotating drum 100, with a mating hole 150 provided on the wall surface. Therefore, the spiral rod 300 can be inserted into the inner cylinder 130 and then through the mating hole 150, thereby completing the assembly.

[0037] In some other embodiments of the present invention, the inner cylinder 130 is provided with walls at both ends, and mating holes 150 are provided on both walls.

[0038] Understandably, if only one mating hole 150 is provided on the end of the rotating drum 100 facing away from the positioning assembly 400, the rotating drum 100 is prone to offset during movement, causing the axis of the rotating drum 100 to no longer coincide with the screw rod 300, thus causing jamming. However, in this embodiment of the invention, by providing two mating holes 150, the axis of the rotating drum 100 can be kept aligned with the screw rod 300, avoiding the jamming problem.

[0039] Furthermore, to ensure that there is no jamming between the two mating holes 150 and the screw rod 300 in this embodiment of the invention, those skilled in the art can set the parameters of the distance and included angle between the two mating holes 150 in different ways. For example, the projections of the two mating holes 150 in the first direction are completely coincident, and the distance between the two mating holes 150 is an integer multiple of the pitch of the screw rod 300. Thus, at any time, the cross-section of the screw rod 300 passing through the two mating holes 150 is also completely coincident along the first direction.

[0040] The first direction refers to the direction from the winding section 210 to the pulling section 220 along the axis of the rotating drum 100.

[0041] refer to Figure 3-4 In some specific embodiments of the present invention, the first end 110 of the inner cylinder 130 is provided with a wall surface, and a mating hole 150 is provided on the wall surface. The second end 120 of the inner cylinder 130 is hollowed out and is provided with a rotating plate 140 that can rotate around the axis of the rotating cylinder 100. A mating hole 150 is also provided on the rotating plate 140.

[0042] Therefore, during the rotation of the drum 100, the mating hole 150 on the wall surface rotates and advances along the screw rod 300, while the rotating plate 140 can adapt to the screw rod 300 at any position through the drum 100. This avoids jamming and eliminates the need to further set the parameters of the distance and angle between the two mating holes 150.

[0043] refer to Figure 2-7 In some specific embodiments of the present invention, the pull-out device 1000 further includes a positioning component 400 and a stop component 500.

[0044] The positioning component 400 is fixedly disposed axially in the rotating cylinder 100 and will not move axially relative to rotation. Furthermore, the positioning component 400 is generally cylindrical and at least partially inserted into the rotating cylinder 100. Therefore, when the rotating cylinder 100 returns to its original position or moves due to the pulling of the hose 200, the rotating cylinder 100 can undergo relative displacement axially relative to the positioning component 400. Moreover, the positioning component 400 is fixed relative to the rotating cylinder 100 in the circumferential direction, and thus can rotate coaxially with the rotation of the rotating cylinder 100. Specifically, a first groove 410 is provided on the side of the positioning component 400 near the rotating inner circumferential wall. The first groove 410 is parallel to the axis of the rotating cylinder 100, and at least one positioning groove 411 is provided on one side of the first groove 410.

[0045] It should be noted that the sidewall of the first chute 410 refers to the sidewall along the direction perpendicular to the axis of the rotating drum 100.

[0046] The stop assembly 500 is fixedly mounted on the rotating drum 100. Specifically, it can be mounted on the inner circumferential wall of the rotating drum 100 or on the end of the rotating drum 100 near the positioning assembly 400. The stop assembly 500 includes a first sliding cavity 511 and a telescopic assembly. The extension direction of the first sliding cavity 511 forms an angle with the axis of the rotating drum 100, which is greater than 0° and less than 180°. For example, it can be a specific angle such as 30°, 60°, or 90°. Other specific angles can also be selected, as long as the extension direction of the first sliding cavity 511 is not parallel to the axis of the rotating drum 100. The telescopic assembly is slidably disposed in the first sliding cavity 511. The telescopic assembly is provided with a stop rod 521 protruding from the first sliding cavity 511. The portion of the stop rod 521 protruding from the first sliding cavity 511 is slidably disposed in the first sliding groove 410 and has a tendency to move toward the side wall where the positioning groove 411 is located. The extension line of the positioning groove 411 along the direction perpendicular to the axis of the rotating cylinder 100 is located on the path of the stop rod 521 sliding in the first direction.

[0047] The following is combined with Figure 9 The working process and principle of this embodiment will be explained as follows: When the user needs to change the target water outlet position, the hose 200 is pulled outward. At this time, due to the mutual cooperation between the screw rod 300 and the mating hole 150, the rotating drum 100 moves along its axis while rotating, so that the winding section 210 continuously approaches the pipe hole 710, thereby reducing the friction between the hose 200 and the pipe hole 710.

[0048] During the movement of the rotating drum 100, since the positioning component 400 does not move axially, while the rotating drum 100 moves relative to the positioning component 400, the stop rod 521 slides in the first slide groove 410 along with the movement of the rotating drum 100. In the initial stage of sliding, the stop rod 521 abuts against the side wall of the positioning groove 411 (e.g., ...) while sliding. Figure 9 -a) When the stop lever 521 moves to the corresponding position in the positioning groove 411, since the stop lever 521 has a tendency to move towards the side wall where the positioning groove 411 is located, the stop lever 521 is embedded in the positioning groove 411 (e.g., Figure 9 -b), thereby achieving engagement. At this time, even after the user releases the hose 200, it can remain at the target water outlet position, and the hose 200 will not be reset by the reset mechanism (such as the first elastic element 600).

[0049] It is understood that multiple positioning grooves 411 can be provided, and they are arranged sequentially on the side wall of the first slide groove 410 along the sliding direction of the stop rod 521.

[0050] refer to Figure 3-10In some specific embodiments of the present invention, the stop component 500 includes a slidable first slider 510, a first sliding cavity 511 disposed on the first slider 510, and in the extending direction of the first sliding cavity 511, the first sliding cavity 511 has a first position and a second position during sliding. A first inner wall 5111 is disposed on the first sliding cavity 511, and the first inner wall 5111 is disposed on the side of the positioning groove 411 facing away from the first sliding groove 410.

[0051] When the first slider 510 is in the first position (e.g.) Figure 10 -c), the first inner wall 5111 abuts against the telescopic component so that when the stop rod 521 slides to the position corresponding to the positioning groove 411 in time, it cannot be embedded into the positioning groove 411 side. At this time, if the user releases the hose 200, the hose 200 resets.

[0052] When the first slider 510 is in the second position (e.g.) Figure 9 -a) The first inner wall 5111 and the telescopic assembly are spaced apart. Specifically, there is a reserved distance between the first inner wall 5111 and the telescopic assembly. Therefore, when the stop rod 521 slides to the position corresponding to the positioning groove 411, the stop rod 521 has a stroke to move towards the positioning groove 411 and can be inserted into the groove. At this time, if the user releases the hose 200, it will not reset.

[0053] According to an embodiment of the present invention, the user can freely select different modes by controlling the sliding position of the first slider 510. For example, when the user only needs to pull out the hose 200 for a short and quick wash, the user can control the first slider 510 to move to the first position and reset it immediately after a short use. When the user needs to pull out the hose 200 and maintain it at the target water outlet position for a long time, the user can control the first slider 510 to move to the second position. At this time, the user can pull out the hose 200 and let the stop rod 521 engage with the positioning groove 411 before releasing the user. The user can maintain the target water outlet position without applying force.

[0054] refer to Figure 7 In some specific embodiments of the present invention, a through groove 5112 communicating with the first sliding cavity 511 is also provided on the side of the first slider 510 near the first sliding groove 410, and the stop rod 521 can extend through the through groove 5112 to enter the positioning groove 411.

[0055] refer to Figure 7-8 In some specific embodiments of the present invention, the stop assembly 500 further includes a second sliding cavity 541, in which the first slider 510 is slidably disposed. The second sliding cavity 541 is provided with a through groove 5112 on the side near the positioning assembly 400 for the stop rod 521 to pass through and slide.

[0056] Specifically, the stop assembly 500 includes a main body 540, and the second sliding cavity 541 and the through groove 5112 are both disposed on the main body 540.

[0057] refer to Figure 5 In some specific embodiments of the present invention, a second sliding groove 420 and a third sliding groove 430 are also provided on the side of the positioning component 400 near the inner peripheral wall of the rotating cylinder 100. The second sliding groove 420 and the third sliding groove 430 are sequentially arranged on the side of the positioning groove 411 facing away from the first sliding groove 410. Specifically, the third sliding groove 430 is arranged on the side of the second sliding groove 420 facing away from the positioning groove 411. The second sliding groove 420 and the third sliding groove 430 are both parallel to the first sliding groove 410, and the first slider 510 is provided with a sliding rod 512 that can slide in the second sliding groove 420 or the third sliding groove 430.

[0058] When the slide bar 512 slides in the second slide groove 420 (e.g.) Figure 10 When -c), the first slider 510 is always in the first position, and when the slider 512 is set in the third slide groove 430 to slide (e.g., Figure 9 When -b), the first slider 510410 is in the second position.

[0059] According to an embodiment of the present invention, the user can control the position of the slider 512, thereby changing the position of the first slider 510. For example, when the user does not need to maintain the pulling state continuously, the slider 512 can be controlled to slide in the second slide groove 420. At this time, the first slider 510 is in the first position, and the stop rod 521 will not enter the positioning groove 411. When the user needs to maintain the pulling state, the slider 512 can be controlled to slide in the third slide groove 430. At this time, the first slider 510 is in the second position. When the stop rod 521 slides to correspond with the positioning groove 411, it can be engaged there.

[0060] It is understood that those skilled in the art can freely set the corresponding parameters of the three factors, based on the correspondence between the depth of the positioning groove 411, the distance between the second slide groove 420 and the third slide groove 430, and the distance between the first inner wall 5111 and the telescopic component when the first slider 510 is in the second position.

[0061] refer to Figure 3-4In some specific embodiments of the present invention, when the positioning component 400 is inserted into the rotating cylinder 100, the outer peripheral wall of the positioning component 400 and the inner peripheral wall of the rotating cylinder 100 are opposite to each other. One of the outer peripheral wall of the positioning component 400 and the inner peripheral wall of the rotating cylinder 100 is provided with a guide groove 450 extending axially along the rotating cylinder 100, and the other is correspondingly provided with a rib 160 extending axially along the rotating cylinder 100. The rib 160 slides in the guide groove 450, so that when the rotating cylinder 100 rotates, it can drive the positioning component 400 to rotate together, and play a guiding role when the rotating cylinder 100 moves relative to the positioning component 400.

[0062] In this embodiment of the invention, the first slide groove 410, the positioning groove 411, the second slide groove 420 and the third slide groove 430 are all disposed on the outer peripheral wall of the positioning component 400. Specifically, when the rib 160 is assembled in the guide groove 450, the above structures are all disposed corresponding to the stop component 500.

[0063] refer to Figure 5 In some embodiments of the present invention, a switching channel 440 is also provided on the side of the positioning component 400 near the inner peripheral wall of the rotating cylinder 100, and the two ends of the second slide groove 420 and the third slide groove 430 are connected through the switching channel 440.

[0064] When the second slide groove 420 and the third slide groove 430 are sequentially arranged on the side of the positioning groove 411 facing away from the first slide groove 410, the switching channel 440 is inclined from the third slide groove 430 to the second slide groove 420 along the first direction.

[0065] The following is combined with Figure 9 , 10 The working principle of the embodiments of the present invention will be explained as follows: For ease of explanation, the two switching channels 440 are defined as the first switching channel 440 and the second switching channel 440, respectively, wherein the direction from the first switching channel 440 to the second switching channel 440 is the first direction.

[0066] When the pull-out device 1000 is not pulled, the slide bar 512 is located at the end of the third slide groove 430 in the opposite direction to the first direction (e.g., Figure 9 -a). When the user pulls out the hose 200, the rotating drum 100 moves along the first direction, simultaneously driving the positioning component 400 to rotate. At this time, the slide rod 512 moves along the third slide groove 430 with the movement of the rotating drum 100, while the stop rod 521 also moves along the first slide groove 410. Since the first slide block 510 is in the second position at this time, when the stop rod 521 moves to the corresponding position of the positioning groove 411, it is embedded therein, thereby achieving locking (e.g., Figure 9-b). When the user needs to reset, the hose 200 can be pulled to allow the slide bar 512 and stop bar 521 to continue moving along the first direction with the rotating drum 100 until they reach the second switching channel 440 (e.g., Figure 10 -a) Since the second switching channel 440 is inclined from the third slide groove 430 to the second slide groove 420 along the first direction, the slide rod 512 can slide through the second switching channel 440 under the drive of the rotating drum 100 (e.g. Figure 10 -b), so that it enters the second slide groove 420. At this time, the first slider 510 is in the first position, and the first inner wall 5111 abuts against the telescopic component, so that even if the stop rod 521 reaches the position of the corresponding positioning groove 411, it cannot be engaged. Furthermore, with the action of the reset device (such as a counterweight), the rotating drum 100 moves in the opposite direction of the first direction (such as...). Figure 10 -c), at this time, the slide bar 512 is driven to slide along the second slide groove 420 until it returns to the initial position through the first switching channel 440.

[0067] According to an embodiment of the present invention, users can reset the pull-out faucet by using the switching channel 440 while selecting the positioning function, which is very convenient to use.

[0068] refer to Figure 7-8 In some specific embodiments of the present invention, the telescopic assembly includes a second slider 520 and a second elastic member 530, the second elastic member 530 being a spring or the like. A stop rod 521 is disposed on the second slider 520, and the second elastic member 530 is disposed on the side of the stop rod 521 facing away from the positioning groove 411. Thus, the second elastic member 530 can provide elastic force to the second slider 520 and the stop rod 521 disposed thereon, causing them to tend to move towards the side wall where the positioning groove 411 is located.

[0069] The second elastic element 530 can be implemented in different ways. For example, one end of the second elastic element 530 may abut against the second slider 520, and the other end may abut against the inner wall of the first sliding cavity 511. Alternatively, the stop assembly 500 may also have a second sliding cavity 541, with one end of the second elastic element 530 abutting against the second slider 520, and the other end passing through the first sliding cavity 511 and abutting against the inner wall of the second sliding cavity 541.

[0070] In some specific embodiments of the present invention, a pull-out faucet (not shown) is also provided, including the pull-out device 1000 described above.

[0071] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0074] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0075] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pull-out device, characterized in that, include: A housing having a port for a flexible tube to pass through; A pull-out assembly includes a rotating cylinder and a guide rod. The rotating cylinder has a mating hole and an outer peripheral wall for the hose to be spirally wound around in sequence. The guide rod passes through the mating hole and enters the rotating cylinder along the axial direction of the rotating cylinder. When the hose is wound around the rotating cylinder, the hose includes a winding section and a pull-out section. The winding section is wound and fits against the outer peripheral wall of the rotating cylinder. One end of the pull-out section is connected to the winding section, and the other end passes through the tube hole and protrudes outside the housing. As the rotating drum rotates with the hose being pulled, it can move along the guide rod so that the winding section continuously approaches the pipe hole along the direction of the guide rod.

2. The pull-out device according to claim 1, characterized in that, When the hose is not pulled out, the axis of the pull-out section is in the same plane as the axis of the tube hole.

3. The pull-out device according to claim 2, characterized in that, The guide rod is a helical rod.

4. The pull-out device according to claim 3, characterized in that, The pitch of the helical rod is equal to the outer diameter of the hose.

5. The pull-out device according to claim 1, characterized in that, It also includes a positioning component, with one end of the rotating cylinder located on the side of the pull-out section opposite to the winding section as the first end and the other end as the second end. The positioning component is connected to the first end and fixedly installed in the axial direction of the rotating cylinder. The pull-out assembly also includes a first elastic element disposed in the rotating cylinder. When the hose is not pulled out, one end of the first elastic element abuts against the positioning assembly, and the other end abuts against the inner wall surface of the second end.

6. The pull-out device according to claim 5, characterized in that, The second end of the rotating drum extends into an inner cylinder along the axis of the rotating drum towards the first end. At least one end of the inner cylinder along the axis of the rotating drum is provided with a wall surface, and the wall surface is provided with the mating hole, or... The second end of the rotating drum extends into an inner cylinder along the axis of the rotating drum towards the first end. One end of the inner cylinder along the axis of the rotating drum is provided with a wall surface, and the wall surface is provided with the mating hole. The other end is provided with a rotating plate that can rotate around the axis of the rotating drum, and the rotating plate is provided with the mating hole.

7. The pull-out device according to claim 1, characterized in that, It also includes a positioning component and a stopping component, wherein: The positioning component is fixedly disposed in the axial direction of the rotating cylinder and at least partially passes through the rotating cylinder. The rotating cylinder is fixed relative to the rotating cylinder in the circumferential direction. The positioning component is provided with a first sliding groove on the side near the inner circumferential wall of the rotating cylinder. The first sliding groove is parallel to the axis of the rotating cylinder. At least one positioning groove is provided on one side wall of the first sliding groove. The stop assembly is fixedly disposed on the inner peripheral wall of the rotating drum or on one end of the rotating drum near the positioning assembly. The stop assembly includes a first sliding cavity and a telescopic assembly. The extension direction of the first sliding cavity forms an angle with the axis of the rotating drum, and the angle is greater than 0° and less than 180°. The telescopic assembly is slidably disposed in the first sliding cavity. The telescopic assembly is provided with a stop rod protruding from the first sliding cavity. The stop rod is slidably disposed in the first sliding groove and has a tendency to move towards the side wall where the positioning groove is located. The extension line of the positioning groove along the direction perpendicular to the axis of the rotating drum is located on the sliding path of the stop rod along the first direction.

8. The pull-out device according to claim 7, characterized in that, The stopping component includes a slidable first slider, on which a first sliding cavity is provided. In the extending direction of the first sliding cavity, the first slider has a first position and a second position, and the first sliding cavity is provided with a first inner wall, which is located on the side of the positioning groove opposite to the first sliding groove. When the first slider is in the first position, the first inner wall abuts against the telescopic component; when the first slider is in the second position, the first inner wall and the telescopic component are spaced apart.

9. The pull-out device according to claim 8, characterized in that, The stopping component further includes a second sliding cavity, in which the first slider is slidably disposed. The second sliding cavity has a through groove on the side near the positioning component for the stopping rod to pass through and slide.

10. The pull-out device according to claim 8, characterized in that, The positioning component is further provided with a second slide groove and a third slide groove on the side of the inner peripheral wall of the rotating cylinder. The second slide groove and the third slide groove are sequentially arranged on the side of the positioning groove opposite to the first slide groove, and are both parallel to the first slide groove. The first slider is provided with a slide rod that can slide in the second slide groove or the third slide groove. Specifically, when the slide bar slides in the second slide groove, the first slider is in the first position, and when the slide bar slides in the third slide groove, the first slider is in the second position.

11. The pull-out device according to claim 10, characterized in that, A switching channel is also provided on the side of the positioning component near the inner peripheral wall of the rotating cylinder. The two ends of the second slide groove and the third slide groove are connected through the switching channel. The switching channel is inclined from the third slide groove to the second slide groove along the first direction.

12. A pull-out faucet, characterized in that, Includes the pull-out device as described in any one of claims 1-11.

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