Pull-out faucet and magnet bushing structure for pull-out faucet

Abstract

The invention provides a pull-out type faucet and a magnet lining structure for the pull-out type faucet, the magnet lining structure comprises a sheath and a lining, the sheath is suitable for being fixedly connected to a water outlet elbow of the pull-out type faucet, the sheath comprises a mounting channel, the lining is at least provided with a magnetic attraction part, and the magnetic attraction part is provided with a magnet. The bushing is used for magnetically adsorbing a drawing head of the drawing type faucet, and the bushing is detachably mounted on the mounting channel through a buckle structure. The magnetic attraction lining structure is divided into a protective sleeve and a lining, the protective sleeve is fixedly connected with the water outlet elbow, and the lining is detachably installed on an installation channel of the protective sleeve through a buckle structure. The sheath actually increases the wall thickness of the water outlet bent pipe, and the whole wall thickness of the water outlet bent pipe does not need to be increased. And the bushing can be detached for replacement, so that the user operation is facilitated, and the like.

Description

Technical Field

[0001] The invention relates to a pull-out faucet and a magnet bushing structure used for the pull-out faucet. Background Art

[0002] Conventional pull-out faucets currently sold on the market include a faucet body, a faucet elbow, and a pull-out water outlet. A magnetic bushing is provided at the end of the faucet elbow, and the pull-out water outlet can be pulled out and arranged at the end of the faucet elbow. The magnetic bushing serves to magnetically position the pull-out water outlet. The connection between the magnetic bushing and the faucet elbow is generally the following two ways:

[0003] In the first connection method, a claw is provided on the magnetic bushing, and the magnetic bushing is directly clamped on the machined groove on the inner wall of the faucet elbow through the claw. Disassembly can indeed be achieved in the first connection method, but the faucet elbow requires a very thick wall thickness to place the machined groove. The entire faucet elbow is very heavy and the cost is very high. The claw of the magnet bushing is clamped on the machined groove on the inner wall of the faucet tube. The elastic force of the plastic is used to restore the claw to a certain amount of deformation after passing through the interference section. After the claw is opened, it will not fall off when pulled down. And it can withstand the required downward pulling force. The magnet bushing can be disassembled. However, the slot is placed on the faucet, resulting in the faucet tube wall thickness being too thick and the faucet slot machining cost being high.

[0004] In the second connection method, the magnet bushing is clamped on the machined groove in the groove of the faucet pipe. However, it needs to be fixed with glue. This structure cannot be disassembled. However, the faucet pipe does not need a very thick wall thickness, and a clamping groove is placed, which is low in cost. This structure is clamped on the machined groove in the groove of the faucet elbow pipe by a magnet bushing. However, it needs to be fixed with glue. It can withstand the required downward pull force. The structure cannot be disassembled. However, the faucet pipe does not need a very thick wall thickness, and a clamping groove is placed. Low in cost. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a magnet bushing structure that reduces the wall thickness of the faucet elbow and can meet the requirements of disassembly and assembly.

[0006] In order to solve the above technical problems, the present invention provides a magnet bushing structure for a pull-out faucet, comprising a sleeve and a bushing, wherein the sleeve is suitable for being fixedly connected to a water outlet elbow of the pull-out faucet, the sleeve comprises an installation channel, the bushing is configured with at least a magnetic attraction component, the bushing is used to magnetically adsorb the pull-out head of the pull-out faucet, and the bushing is detachably mounted on the installation channel by a snap-on structure.

[0007] In a more preferred embodiment, the outer wall of the sleeve is at least glued to the water outlet elbow of the pull-out faucet; the sleeve also includes one or more snap-on positioning components, and the snap-on positioning components are positioned and connected to the positioning holes of the water outlet elbow.

[0008] In a more preferred embodiment, the bushing is provided with a first claw and a plurality of second claws; one end of the first claw is connected to the upper end surface of the bushing, and the other end of the first claw is provided with a hanging portion; the plurality of second claws are provided on the outer side wall of the bushing;

[0009] The upper end surface of the sheath is provided with a hanging groove, and the inner wall of the installation channel is provided with a clamping groove corresponding to a plurality of second clamping claws;

[0010] The first clamping claw is configured to pass through the installation channel so that the hanging portion is hung on the hanging groove, and the bushing is rotated with the hanging groove as a center point until the second clamping claw is buckled on the clamping groove.

[0011] In a more preferred embodiment, the mounting channel includes an interference section, the diameter of the interference section is larger than the outer diameter of the bushing, the second claw is an elastic claw, when the second claw on the bushing passes through the interference section, the second claw can be elastically deformed, and the interference section is suitable for being sleeved on the outer side wall of the bushing.

[0012] In a more preferred embodiment, the lower end of the installation channel further includes a first annular guide surface, and the lower end of the outer side wall of the bushing further includes a second annular guide surface adapted to be coupled to the first annular guide surface.

[0013] In a more preferred embodiment, the outer side wall of the bushing further includes a plurality of anti-rotation ribs extending along the axial direction, and the mounting channel includes a plurality of anti-rotation grooves engaged with the anti-rotation ribs;

[0014] The outer side wall of the bushing also includes a guide boss corresponding to the lower side of the hanging portion, and the lower end surface of the sleeve also includes a guide groove, and the guide protrusion is engaged and connected with the guide groove.

[0015] In a more preferred embodiment, the upper end of the bushing includes a plurality of third claws and at least one anti-rotation mechanism; the upper side of the mounting channel also includes a plurality of rotational positions, and the upper side of the mounting channel also includes an anti-rotation groove. The bushing is configured to be axially installed from the lower end of the mounting channel to a first mounting position, and the bushing is operably rotated from the first mounting position to a second mounting position. In the second mounting position, the third claws are connected to the rotational positions to limit the axial movement of the bushing, and the anti-rotation mechanism is connected to the anti-rotation groove to limit the circumferential rotation of the bushing.

[0016] In a more preferred embodiment, the rotational clamping position includes a first through slot axially arranged on the mounting channel, and the rotational clamping position also includes a clamping surface, and the clamping surface extends along the circumference of the mounting channel; the third clamping claw moves axially in the first through slot to correspond to the clamping surface in the first mounting position, and the third clamping claw rotates circumferentially to the second mounting position to be correspondingly clamped on the clamping surface;

[0017] The anti-rotation mechanism comprises an elastic cantilever, and the elastic cantilever and the anti-rotation groove constitute a ratchet anti-rotation mechanism.

[0018] In a more preferred embodiment, the outer side wall of the bushing further includes a plurality of anti-loosening ribs, and the anti-loosening ribs abut against the inner wall of the installation channel;

[0019] The lower end of the bushing also includes one or more wrench grooves, and the wrench grooves are used to connect a tool so that the tool can drive the bushing to rotate.

[0020] The present invention also provides a pull-out faucet, comprising the magnet bushing structure for the pull-out faucet.

[0021] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0022] The magnetic bushing structure is divided into a sheath and a bushing. The sheath is fixedly connected to the water outlet elbow, and the bushing is detachably mounted on the installation channel of the sheath through a buckle structure. The sheath actually increases the wall thickness of the water outlet elbow without increasing the overall wall thickness of the water outlet elbow. The bushing can be removed for replacement, which is convenient for users to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional schematic diagram of a magnetic bushing structure, a water outlet elbow and a pull-out head in a first embodiment of the present invention;

[0024] Figure 2 A side view of a bushing in a first embodiment of the present invention;

[0025] Figure 3 A top view of a bushing in a first embodiment of the present invention;

[0026] Figure 4 A side view of a sheath in a first embodiment of the present invention;

[0027] Figure 5 A top view of a sheath in a first embodiment of the present invention;

[0028] Figure 6 A side view of a sheath in a first embodiment of the present invention;

[0029] Figure 7 A top view of the first embodiment of the present invention when the sleeve and the bushing are connected;

[0030] Figure 8 It is a cross-sectional schematic diagram of a magnetic bushing structure, a water outlet elbow and a pull-out head in a second embodiment of the present invention;

[0031] Fig. 9 is a top view of a sheath in a second embodiment of the present invention;

[0032] Fig.10 A top view of a bushing in a second embodiment of the present invention;

[0033] Fig.11 A top view of the second embodiment of the present invention in which the sleeve and the bushing are connected and the bushing is not rotated;

[0034] Fig.12 A bottom view of the second embodiment of the present invention when the sleeve and the bushing are connected;

[0035] Fig.13 This is a top view of the second embodiment of the present invention after the sleeve and the bushing are connected and the bushing is rotated. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] See also Figure 1-Figure 13 A magnet bushing structure for a pull-out faucet comprises a sleeve 1 and a sleeve 2, wherein the sleeve 1 is suitable for being fixedly connected to a water outlet elbow 200 of the pull-out faucet, the sleeve 1 comprises an installation channel 11, the sleeve 2 is at least provided with a magnetic attraction component 21, the sleeve 2 is used for magnetically absorbing a pull-out head 300 of the pull-out faucet, and the sleeve 2 is detachably mounted on the installation channel 11 through a snap-on structure.

[0038] The magnetic bushing structure is divided into a sheath 1 and a bushing 2. The sheath 1 is fixedly connected to the water outlet elbow 200, and the bushing 2 is detachably mounted on the mounting channel 11 of the sheath 1 through a snap-on structure. The sheath 1 actually increases the wall thickness of the water outlet elbow 200, without increasing the overall wall thickness of the water outlet elbow 200. The bushing 2 is provided with a corresponding magnetic component 21, which can be a permanent magnet, etc. The bushing 2 can be disassembled for replacement, which is convenient for users to operate.

[0039] The outer wall of the sleeve 1 is at least glued to the water outlet elbow 200 of the pull-out faucet. The outer wall of the sleeve 1 also includes a plurality of annular protrusions 12 arranged at intervals along the axial direction, and the annular protrusions 12 can play a role in preventing slipping. Adjacent annular protrusions 12 can also play a role in accommodating glue to prevent the glue from flowing out before solidification during bonding. The sleeve 1 also includes one or more snap-on positioning components 13, and the snap-on positioning components 13 are positioned and connected with the positioning holes 210 of the water outlet elbow 200. The sleeve 1 is provided with two snap-on positioning components 13, and the two snap-on positioning components 13 are arranged 180 degrees apart along the circumferential direction.

[0040] The buckle structure connecting the bushing 2 and the sheath 1 can be divided into the following two implementation modes:

[0041] See also Figure 1-Figure 7 , the first embodiment: the bushing 2 is provided with a first claw 221 and a plurality of second claws 222; one end of the first claw 221 is connected to the upper end surface of the bushing 2, and the other end of the first claw 221 is provided with a hanging portion 2211. The plurality of second claws 222 are arranged on the outer side wall of the bushing 2; the upper end surface of the sleeve 1 is provided with a hanging groove 14, and the inner wall of the mounting channel 11 is provided with a clamping groove 15 corresponding to the plurality of second claws 222; the first claw 221 is configured to pass through the mounting channel 11 so that the hanging portion 2211 is hung on the hanging groove 14, and the bushing 2 rotates with the hanging groove 14 as a center point until the second claw 222 is buckled on the clamping groove 15. The installation channel 11 includes an interference section, the diameter of which is larger than the outer diameter of the bushing 2, the second claw 222 is an elastic claw, and when the second claw 222 on the bushing 2 passes through the interference section, the second claw 222 can be elastically deformed, and the interference section is suitable for being sleeved on the outer wall of the bushing 2. The lower end of the installation channel 11 also includes a first annular guide surface, and the lower end of the outer wall of the bushing 2 also includes a second annular guide surface 23 adapted to be connected with the first annular guide surface. The outer wall of the bushing 2 also includes a plurality of anti-rotation ribs 24 extending along the axial direction, and the installation channel 11 includes a plurality of anti-rotation grooves engaged with the anti-rotation ribs 24; the outer wall of the bushing 2 also includes a guide boss 25 corresponding to the lower side of the hanging portion 2211, and the lower end surface of the sleeve 1 also includes a guide groove 16, and the guide protrusion is engaged with the guide groove 16.

[0042] In this embodiment, the hanging portion 2211 of the first claw 221 is in an arc shape, and the hanging groove 14 is in a U shape.

[0043] In the first embodiment, the sleeve 1 is first placed on the outlet elbow 200 and glued, and then the bushing 2 is installed on the sleeve 1. The bushing 2 is installed from the bottom of the sleeve 1 upwards. The hanging portion 2211 of the first claw 221 of the bushing 2 is first placed on the U-shaped hanging groove 14 of the sleeve 1. The left and right directions are confirmed by the structure of the guide boss 25. The two second claws 222 on the other side of the bushing 2 are forced to pass through the interference section of the sleeve 1. The first annular guide surface and the second annular guide surface are used to make the bushing 2 and the sleeve 1 coaxial. In the first embodiment, the second claw 222 is made of plastic material, and the elasticity of the plastic is used to restore the shape of the second claw 222 of the bushing 2 after passing through the interference section. Finally, the second claw 222 is clamped on the clamping groove 15 of the sleeve 1, and the bushing 2 is flush with the bottom end surface of the sleeve 1.

[0044] In this embodiment, the size of the second claw 222 of the bushing 2 is 24.27mm in diameter, and the diameter of the interference section of the sleeve 1 is 23.86mm. The claw amount of the second claw 222 stuck in the sleeve 1 is 0.41mm, and the single side is 0.205mm. If the claw amount is too much, the plastic elastic force is too large to pass through. If the claw amount is too little, the second claw 222 can pass through, but the downward pulling force of the second claw 222 is not enough. In the comparison of multiple groups of proofing, the claw amount of 0.41mm best meets the requirements. The tensile strength and the difficulty of assembly are most suitable. The upper diameter of the rib of the anti-rotation rib 24 is 23.86mm. The lower diameter of the rib of the anti-rotation rib 24 is 24.11mm. The size of the anti-rotation groove of the sleeve 1 is 23.66mm in upper diameter and 23.86mm in lower diameter. The upper part of the rib interference is 0.1mm on one side. The lower part is 0.125mm on one side, and the ribs have the best anti-rotation effect.

[0045] See also Figure 8-Figure 13, the second embodiment: the upper end of the bushing 2 includes a plurality of third claws 26 and at least one anti-rotation mechanism 27; the upper side of the mounting channel 11 also includes a plurality of rotational positions, and the upper side of the mounting channel 11 also includes an anti-rotation groove 115. The bushing 2 is configured to be axially installed from the lower end of the mounting channel 11 to a first mounting position, and the bushing 2 can be operably rotated from the first mounting position to a second mounting position. In the second mounting position, the third claws 26 are connected to the rotational positions to limit the axial movement of the bushing 2, and the anti-rotation mechanism 27 is connected to the anti-rotation groove 115 to limit the circumferential rotation of the bushing 2. The rotational latch includes a first through slot 1141 axially arranged on the installation channel 11, and the rotational latch also includes a snap-fit ​​surface 1142, and the snap-fit ​​surface 1142 extends circumferentially along the installation channel 11; the third claw 26 moves axially in the first through slot 1141 to correspond to the snap-fit ​​surface 1142 in the first installation position, and the third claw 26 rotates circumferentially to the second installation position to correspondingly snap-fit ​​on the snap-fit ​​surface 1142; the anti-rotation mechanism 27 includes an elastic cantilever 271, and the elastic cantilever 271 and the anti-rotation slot 115 constitute The ratchet anti-rotation mechanism 27, one end of the elastic cantilever 271 is fixedly connected to the bushing 2, and the other end extends in the direction opposite to the rotation direction of the bushing 2. A block 272 is arranged on the outer side of the elastic cantilever 271. The elastic cantilever 271 can be elastically deformed by external force to make the block 272 move radially inward. When the bushing 2 rotates, the block 272 of the elastic cantilever 271 moves radially inward to make the block 272 embed into the anti-rotation groove 115. After embedding into the anti-rotation groove 115, when the bushing 2 rotates in the opposite direction, the block 272 will be limited by the anti-rotation groove 115 and receive greater resistance. The outer side wall of the bushing 2 also includes a plurality of anti-loosening ribs, which abut against the inner wall of the installation channel 11. The lower end of the bushing 2 also includes one or more wrench grooves 29, and the wrench grooves 29 are used to connect tools so that the tools can drive the bushing 2 to rotate.

[0046] In the second embodiment, the bushing 2 is installed upward from the bottom of the sleeve 1. The bushing 2 is first aligned with the initial installation indication direction, and no jamming should be felt during the installation into the sleeve 1. The two third claws 26 and the two anti-rotation mechanisms 27 of the bushing 2 are passed through the sleeve 1 until the installed bushing 2 is flush with the bottom end surface of the sleeve 1. Use a wrench to rotate the bushing 2 so that the third claws 26 of the bushing 2 are on the top plane of the sleeve 1 (that is, the clamping surface 1142). After the bushing 2 is rotated to a certain angle with a wrench, the anti-rotation mechanism 27 of the bushing 2 and the anti-rotation groove 115 of the sleeve 1 will be stuck to each other, and there will be a certain resistance when rotating out.

[0047] The above is only a preferred specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. A magnet bushing structure for a pull-out faucet, characterized in that: It includes a sleeve and a bushing, wherein the sleeve is suitable for being fixedly connected to a water outlet elbow of a pull-out faucet, the sleeve includes an installation channel, the bushing is at least provided with a magnetic attraction component, the bushing is used to magnetically attract the pull-out head of the pull-out faucet, and the bushing is detachably mounted on the installation channel through a snap-on structure.

2. A magnet bushing structure for a pull-out faucet according to claim 1, characterized in that: The outer wall of the sleeve is at least glued to the water outlet elbow of the pull-out faucet; the sleeve also includes one or more buckle positioning components, and the buckle positioning components are positioned and connected to the positioning holes of the water outlet elbow.

3. A magnet bushing structure for a pull-out faucet according to claim 1 or 2, characterized in that: The bushing is provided with a first claw and a plurality of second claws; one end of the first claw is connected to the upper end surface of the bushing, and the other end of the first claw is provided with a hanging portion; the plurality of second claws are provided on the outer side wall of the bushing; The upper end surface of the sheath is provided with a hanging groove, and the inner wall of the installation channel is provided with a clamping groove corresponding to a plurality of second clamping claws; The first clamping claw is configured to pass through the installation channel so that the hanging portion is hung on the hanging groove, and the bushing is rotated with the hanging groove as a center point until the second clamping claw is buckled on the clamping groove.

4. A magnet bushing structure for a pull-out faucet as claimed in claim 3, characterized in that: The installation channel includes an interference section, the diameter of the interference section is larger than the outer diameter of the bushing, the second claw is an elastic claw, when the second claw on the bushing passes through the interference section, the second claw can be elastically deformed, and the interference section is suitable for being sleeved on the outer side wall of the bushing.

5. A magnet bushing structure for a pull-out faucet as claimed in claim 4, characterized in that: The lower end of the installation channel also includes a first annular guide surface, and the lower end of the outer side wall of the bushing also includes a second annular guide surface adapted to be coupled with the first annular guide surface.

6. A magnet bushing structure for a pull-out faucet according to claim 4, characterized in that: The outer side wall of the bushing further comprises a plurality of anti-rotation ribs extending along the axial direction, and the mounting channel comprises a plurality of anti-rotation grooves engaged with the anti-rotation ribs; The outer side wall of the bushing also includes a guide boss corresponding to the lower side of the hanging portion, and the lower end surface of the sleeve also includes a guide groove, and the guide protrusion is engaged and connected with the guide groove.

7. A magnet bushing structure for a pull-out faucet according to claim 1 or 2, characterized in that: The upper end of the bushing includes a plurality of third claws and at least one anti-rotation mechanism; the upper side of the mounting channel also includes a plurality of rotational positions, and the upper side of the mounting channel also includes an anti-rotation groove. The bushing is configured to be axially installed from the lower end of the mounting channel to a first mounting position, and the bushing is operably rotated from the first mounting position to a second mounting position. In the second mounting position, the third claws are connected to the rotational positions to limit the axial movement of the bushing, and the anti-rotation mechanism is connected to the anti-rotation groove to limit the circumferential rotation of the bushing.

8. A magnet bushing structure for a pull-out faucet according to claim 7, characterized in that: The rotational clamping position includes a first through slot axially arranged on the mounting channel, and the rotational clamping position also includes a clamping surface, and the clamping surface extends along the circumference of the mounting channel; the third clamping claw moves axially in the first through slot to correspond to the clamping surface in the first mounting position, and the third clamping claw rotates circumferentially to the second mounting position to be correspondingly clamped on the clamping surface; The anti-rotation mechanism comprises an elastic cantilever, and the elastic cantilever and the anti-rotation groove constitute a ratchet anti-rotation mechanism.

9. The magnet bushing structure for a pull-out faucet according to claim 7, characterized in that: The outer side wall of the bushing further comprises a plurality of anti-loosening ribs, and the anti-loosening ribs abut against the inner wall of the installation channel; The lower end of the bushing also includes one or more wrench grooves, and the wrench grooves are used to connect a tool so that the tool can drive the bushing to rotate.

10. A pull-out faucet, characterized in that: The invention comprises a magnet bushing structure for a pull-out faucet as claimed in any one of claims 1 to 9.

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