Expansion joint of faucet

Abstract

The utility model provides an expansion joint of a faucet, which comprises a first joint, a second joint and an adapter, the adapter comprises an inlet end, an outlet end and an extension section suitable for communicating the inlet end with the outlet end, the inlet end is communicated with the first joint and suitable for rotating around a first axis l1, and the outlet end is communicated with the second joint and rotates around a second axis l2. The first axis l1 is perpendicular to the second axis l2. The adapter is arranged to be in running fit with the first connector and the second connector around the mutually perpendicular axis directions, the structure is compact, the movement track and force transmission are clearer and predictable, and when rotation in the two directions needs to be accurately controlled, a higher-precision and more direct control mode can be provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of faucets, and in particular relates to an expansion joint of a faucet. Background Art

[0002] When a faucet is installed too close to the wall or fails to extend to the sink, water splashes often occur when the user uses the faucet. Therefore, a faucet extender or expansion joint suitable for extending the range and angle of the faucet comes into being.

[0003] The existing Chinese patent application number CN202122683194.8 discloses a faucet extender, including an extension tube and a base, at least one end of the extension tube is provided with a base, the end of the extension tube is provided with an adapter assembly rotatably connected to the base, the adapter assembly includes an outer sphere and an inner sphere, the inner sphere is provided at the end of the extension tube, the extension tube is formed with a water flow channel extending along its length direction and penetrating the inner sphere, the base is formed with a first hole penetrating along its axial direction, the outer sphere is formed with a second hole penetrating along its radial direction, the outer sphere is rotatably arranged in the first hole, the inner sphere is rotatably arranged in the second hole of the outer sphere, a first elastic sealing ring is provided between the outer sphere and the first hole, and a second elastic sealing ring is provided between the inner sphere and the second hole. The above scheme has the following limitations: the adjustment of the distance and angle is achieved by relative rotation between the inner sphere and the outer sphere, and between the outer sphere and the base, the adjustment path is complex, the control is not direct, and the structure is complex and not easy to disassemble and assemble, the elastic sealing ring fails in long-term friction but is not easy to replace, and the manufacturing and maintenance costs are high. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the purpose of the present utility model is to provide an expansion joint of a faucet to meet the needs of users.

[0005] To achieve the above-mentioned purpose, the utility model provides an extension joint of a faucet, comprising a first joint, a second joint and an adapter seat, the adapter seat comprising an inlet end, an outlet end and an extension section suitable for connecting the inlet end and the outlet end, the inlet end is connected to the first joint and is suitable for rotating around a first axis l1, the outlet end is connected to the second joint and rotates around the second axis l2, and the first axis l1 is perpendicular to the second axis l2.

[0006] Preferably, the extension section is a columnar structure arranged along the first axis l1, and comprises an open top end, a sealed bottom end and a side panel, the open top end is connected to the inlet end, and the side panel extends outward to form the outlet end.

[0007] As a preferred embodiment, the projection of the adapter along the direction of the first axis l1 completely falls within the projection range of the first joint.

[0008] Preferably, the inlet end includes a limiting arc surface arranged at its bottom, the limiting arc surface is coaxially arranged with the outlet end, the second joint includes two stop surfaces, the stop surfaces are suitable for respectively abutting against the two ends of the limiting arc surface to limit the rotation range of the second joint, and the rotation range of the second joint is between 0°-180°.

[0009] As a preferred embodiment: the second joint is plug-fitted with the outlet end along the second axis l2 direction and the separation of the two is limited by a second limiting snap ring, the second limiting snap ring includes an elastic second ring with a notch and a plurality of second stop blocks extending radially inward from the inner circumference of the second ring, the outlet end includes a second limiting ring groove formed on its outer contour, the second joint includes a second plug-in groove formed inside it, or the second joint includes a second limiting ring groove formed on its outer contour, the inlet end includes a second plug-in groove formed inside it, and the second plug-in groove includes a stop end face.

[0010] In the natural state, the second stop block is suitable for extending into the second limiting ring groove, and at least a portion of the second circular ring is suitable for extending out of the second limiting ring groove. During installation, the inner circumferential wall of the second plug-in groove is suitable for squeezing the second limiting clamping ring inward until the second limiting ring groove is out of the groove. The elasticity of the second circular ring itself is suitable for driving it to restore its natural state, and the second circular ring is suitable for abutting the stop end face to limit the separation of the two.

[0011] Preferably, the second joint comprises a second tube body and a second rotating seat, the second rotating seat comprises an outer cylinder suitable for communicating with the second tube body and an inner cylinder suitable for constituting the second plug-in slot, a cover plate is provided at one end of the outer cylinder facing the stop end face, a buffer zone is formed between the cover plate and the stop end face, and the other end of the outer cylinder is sealingly connected to the inner cylinder.

[0012] As a preferred embodiment: the second tube body extends outward from the tangent direction of the outer cylinder, and the central axis of the second tube body is defined as the third axis l3. The stop surface is arranged parallel to the second tube body. When any of the stop surfaces abuts the limit arc surface, the first axis l1, the second axis l2 and the third axis l3 are perpendicular to each other.

[0013] Preferably, the outer contour of the second tube body is provided with several sealing rings of different diameters to facilitate the second tube body to be further extended to the water pipe by plugging, and a stop circular plate perpendicular to the second tube body is provided between the second tube body and the outer cylinder, and the stop circular plate is suitable for abutting the water pipe to prompt the installation in place.

[0014] Preferably, a plurality of radially arranged reinforcing ribs are provided between the inner cylinder and the outer cylinder, the cover plate is detachably sealedly connected to the outer cylinder, and the cover plate is suitable for abutting against the reinforcing ribs to prompt the installation to be in place.

[0015] As a preferred embodiment: the first joint and the inlet end are plugged into and matched along the first axis l1 direction and are limited by a first limiting snap ring structure to limit separation of the two. The first limiting snap ring includes an elastic first circular ring with a notch and a plurality of first stop blocks extending radially inward from the inner circumference of the first circular ring. The first joint includes a first limiting ring groove formed on its outer contour, and the inlet end includes a first stopping ring groove formed on its outer contour, or the inlet end includes a first limiting ring groove formed on its outer contour, and the first joint includes a first stopping ring groove formed on its outer contour.

[0016] The first stop ring groove, the first limiting ring groove and the first limiting snap ring are coaxially arranged about the first axis l1, the first stop ring groove is aligned with and connected to the first limiting ring groove, the first ring is suitable for being snapped into the first stop ring groove, and the first stop block is suitable for extending into the first limiting ring groove.

[0017] As a preferred embodiment, the inlet end is formed with a first plug-in groove suitable for the first connector to extend therein, the first connector includes a first flow channel formed therein and a first sealing ring groove formed on its outer contour, the first sealing ring groove has a first sealing ring built in it, and the first limiting ring groove and the first sealing ring groove are arranged in order from far to near relative to the inlet end.

[0018] Preferably, the first joint comprises an original connector, the original connector comprises an internal thread, the original connector is suitable for being directly mounted on the faucet via the internal thread, or the connector is suitable for being assembled with a secondary connector via the internal thread, the secondary connector being detachably connected to the faucet.

[0019] The beneficial effects of the utility model are:

[0020] By arranging the adapter to rotate with the first joint and the second joint around mutually perpendicular axial directions, the structure is compact, the motion trajectory and force transmission are clearer and more predictable, and when precise control of rotation in two directions is required, a higher precision and more direct control method can be provided.

[0021] The adapter is detachably connected to the first joint and the second joint by the first limiting clamp ring and the second limiting clamp ring. The adapter is easy to disassemble and assemble, with low assembly cost and easy maintenance. The sealing ring can be disassembled and replaced or internal blockage can be cleared to maintain the sealing and fluidity and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a structural schematic diagram of an expansion joint of a faucet provided by the utility model.

[0023] Figure 2 The utility model is an exploded schematic diagram of an expansion joint of a faucet provided by the utility model.

[0024] Figure 3 The utility model is a cross-sectional schematic diagram of an expansion joint of a faucet provided by the utility model.

[0025] Figure 4 The utility model is a cross-sectional schematic diagram of an expansion joint of a faucet provided by the utility model at another angle.

[0026] Figure 5 This is a schematic structural diagram of the first limiting clamp ring provided by the utility model.

[0027] Figure 6 This is a structural schematic diagram of the first joint provided by the utility model.

[0028] Figure 7 This is a structural schematic diagram of the adapter provided by the utility model.

[0029] Figure 8 This is a schematic structural diagram of the second limiting clamp ring provided by the utility model.

[0030] In the figure, the first joint 100, the original connector 101, the first flow channel 102, the first limiting ring groove 103, the first sealing ring 104, the second joint 200, the second tube body 201, the second flow channel 202, the second rotating seat 203, the outer cylinder 204, the cover plate 205, the inner cylinder 206, the stop end face 207, the buffer zone 208, the reinforcing rib 209, the stop surface 210, the stop circular plate 211, the adapter seat 300, the inlet end 301, the outlet end 302, the extension section 303, the open top end 304, the sealed bottom end 305, the side panel 306, the first stop ring groove 307, the second limit ring groove 308, the first limit snap ring 309, the first circular ring 310, the first stop block 311, the second limit snap ring 312, the second circular ring 313, the second stop block 314, and the limit arc surface 315. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0033] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] like Figure 1-8 The expansion joint of a faucet includes a first joint 100, a second joint 200 and an adapter 300, wherein the adapter 300 includes an inlet end 301, an outlet end 302 and an extension section 303 adapted to connect the inlet end 301 and the outlet end 302, wherein the inlet end 301 is connected to the first joint 100 and adapted to rotate around a first axis l1, and the outlet end 302 is connected to the second joint 200 and adapted to rotate around a second axis, wherein the first axis l1 is arranged perpendicularly to the second axis l2. The projection of the adapter 300 along the direction of the first axis l1 completely falls within the projection range of the first joint 100.

[0035] In this embodiment, the second joint 200 is plugged and matched with the outlet end 302 along the second axis l2 and the separation of the two is limited by the second limit ring 312. The extension section 303 is a columnar structure arranged along the first axis l1, and the extension section 303 includes an open top end 304, a sealed bottom end 305 and a side panel 306. The open top end 304 is connected to the inlet end 301, and the side panel 306 extends outward to form the outlet end 302. The outlet end 302 includes a second limit ring groove 308 formed on its outer contour. The second joint 200 includes a second tube body 201 and a second rotating seat 203. The second tube body 201 has a second flow channel 202 formed therein. The second rotating seat 203 includes an outer cylinder 204 adapted to communicate with the second tube body 201 and an inner cylinder 206 adapted to form a second plug-in slot. One end face of the inner cylinder 206 is adapted to form a stop end face 207. A cover plate 205 is provided at one end of the outer cylinder 204 facing the stop end face 207. A buffer zone 208 is adapted to be formed between the cover plate 205 and the stop end face 207. The other end of the outer cylinder 204 is sealed and connected to the inner cylinder 206. The second limit clamp 312 includes an elastic second circular ring 313 with a notch and a plurality of second stop blocks 314 extending radially inward from the inner circumference of the second circular ring 313. In the natural state, the second stop block 314 is suitable for extending into the second limiting ring groove 308, and at least a portion of the second ring 313 is suitable for extending out of the second limiting ring groove 308. During installation, the inner wall of the second plug-in groove is suitable for squeezing the second limiting clamping ring 312 inward until the second limiting ring groove 308 is disengaged. The elasticity of the second ring 313 itself is suitable for driving it to restore to its natural state, and the second ring 313 is suitable for abutting against the stop end face 207 to limit the separation of the two.

[0036] In this embodiment, the inlet end 301 includes a limit arc surface 315 disposed at the bottom thereof, and the limit arc surface 315 is coaxially disposed with the outlet end 302. The second tube body 201 extends outward from the tangent direction of the outer cylinder 204, and the central axis of the second tube body 201 is defined as the third axis l3. The second joint 200 includes two stop surfaces 210 disposed parallel to the second tube body 201, and the stop surfaces 210 are suitable for respectively abutting against the two ends of the limit arc surface 315 to limit the rotation range of the second joint 200. When any stop surface 210 abuts against the limit arc surface 315, the first axis l1, the second axis l2 and the third axis l3 are perpendicular to each other.

[0037] In this embodiment, a plurality of radially arranged reinforcing ribs 209 are provided between the inner cylinder 206 and the outer cylinder 204, and the cover plate 205 is detachably sealed and connected to the outer cylinder 204, and the cover plate 205 is suitable for abutting against the reinforcing ribs 209 to prompt that the installation is in place. The outer contour of the second tube body 201 is provided with a plurality of sealing rings of different diameters, so that the second tube body 201 can be further extended to the water pipe by plugging, and a stop circular plate 211 perpendicular to the second tube body 201 is provided between the second tube body 201 and the outer cylinder 204, and the stop circular plate 211 is suitable for abutting against the water pipe to prompt that the installation is in place.

[0038] In this embodiment, the first joint 100 includes an original connector 101, a first flow channel 102 formed therein, a first limiting ring groove 103 and a first sealing ring groove formed on its outer contour in order from far to near relative to the inlet end 301, and the first sealing ring groove has a first sealing ring 104 built in. The original connector 101 includes an internal thread, and the original connector 101 is suitable for being directly installed on the faucet through the internal thread, or the connector is suitable for assembling a secondary connector through the internal thread, and the secondary connector is detachably connected to the faucet.

[0039] In this embodiment, the inlet end 301 is formed with a first plug-in groove suitable for the first connector 100 to extend into and a first stop ring groove 307 formed on its outer contour. The first connector 100 and the inlet end 301 are plugged and matched along the first axis l1 direction, and the first stop ring groove 307 is aligned with and connected to the first limit ring groove 103. The first stop ring groove 307, the first limit ring groove 103 and the first limit snap ring 309 are coaxially arranged about the first axis l1, and the first circular ring 310 is suitable for snapping into the first stop ring groove 307. The first limit snap ring 309 includes an elastic first circular ring 310 with a notch and a plurality of first stop blocks 311 formed by extending radially inward from the inner circumference of the first circular ring 310, and the first stop blocks 311 are suitable for extending into the first limit ring groove 103.

[0040] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. An expansion joint for a faucet, characterized in that: It includes a first joint, a second joint and an adapter seat, the adapter seat includes an inlet end, an outlet end and an extension section suitable for connecting the inlet end and the outlet end, the inlet end is connected to the first joint and is suitable for rotating around a first axis l1, the outlet end is connected to the second joint and is suitable for rotating around a second axis l2, and the first axis l1 is perpendicular to the second axis l2.

2. The expansion joint of a faucet according to claim 1, characterized in that: The extension section is a column structure arranged along the first axis l1, and includes an open top end, a sealed bottom end and a side panel. The open top end is connected to the inlet end, and the side panel extends outward to form the outlet end.

3. The expansion joint of a faucet according to claim 2, characterized in that: The projection of the adapter along the direction of the first axis l1 completely falls within the projection range of the first joint.

4. The expansion joint of a faucet according to claim 3, characterized in that: The inlet end includes a limiting arc surface arranged at its bottom, and the limiting arc surface is coaxially arranged with the outlet end. The second joint includes two stop surfaces, and the stop surfaces are suitable for respectively abutting against the two ends of the limiting arc surface to limit the rotation range of the second joint. The rotation range of the second joint is between 0°-180°.

5. The expansion joint of a faucet according to claim 4, characterized in that: The second connector is plugged into the outlet end along the second axis l2 and is limited to separate by a second limit ring, wherein the second limit ring includes an elastic second circular ring with a notch and a plurality of second stop blocks extending radially inward from the inner circumference of the second circular ring. The outlet end includes a second limiting ring groove formed on its outer contour, and the second joint includes a second plugging groove formed inside thereof, or the second joint includes a second limiting ring groove formed on its outer contour, and the inlet end includes a second plugging groove formed inside thereof, and the second plugging groove includes a stop end surface, In the natural state, the second stop block is suitable for extending into the second limiting ring groove, and at least a portion of the second circular ring is suitable for extending out of the second limiting ring groove. During installation, the inner circumferential wall of the second plug-in groove is suitable for squeezing the second limiting clamping ring inward until the second limiting ring groove is out of the groove. The elasticity of the second circular ring itself is suitable for driving it to restore its natural state, and the second circular ring is suitable for abutting the stop end face to limit the separation of the two.

6. The expansion joint of a faucet according to claim 5, characterized in that: The second joint includes a second tube body and a second rotating seat, the second rotating seat includes an outer cylinder suitable for connecting with the second tube body and an inner cylinder suitable for forming the second plug-in groove, a cover plate is provided at one end of the outer cylinder facing the stop end face, and a buffer zone is formed between the cover plate and the stop end face, and the other end of the outer cylinder is sealingly connected to the inner cylinder.

7. The expansion joint of a faucet according to claim 6, characterized in that: The second tube body extends outward from the tangent direction of the outer cylinder, and the central axis of the second tube body is defined as the third axis l3. The stop surface is arranged parallel to the second tube body. When any of the stop surfaces abuts against the limit arc surface, the first axis l1, the second axis l2 and the third axis l3 are perpendicular to each other.

8. The expansion joint of a faucet according to claim 7, characterized in that: The outer contour of the second tube body is provided with a plurality of sealing rings of different diameters, so that the second tube body can be further connected to the water pipe by plugging. A stop circular plate perpendicular to the second tube body is provided between the second tube body and the outer cylinder, and the stop circular plate is suitable for abutting against the water pipe to prompt the installation in place; And / or, a plurality of radially arranged reinforcing ribs are provided between the inner cylinder and the outer cylinder, the cover plate is detachably sealedly connected to the outer cylinder, and the cover plate is suitable for abutting against the reinforcing ribs to prompt installation in place.

9. An expansion joint for a faucet according to any one of claims 1 to 8, characterized in that: The first joint is plugged and matched with the inlet end along the first axis l1 and is limited to separate by a first limit snap ring structure. The first limit snap ring includes an elastic first circular ring with a notch and a plurality of first stop blocks extending radially inward from the inner circumference of the first circular ring. The first joint includes a first stop ring groove formed on its outer contour, the inlet end includes a first stop ring groove formed on its outer contour, or the inlet end includes a first stop ring groove formed on its outer contour, the first joint includes a first stop ring groove formed on its outer contour, The first stop ring groove, the first limiting ring groove and the first limiting snap ring are coaxially arranged about the first axis l1, the first stop ring groove is aligned with and connected to the first limiting ring groove, the first ring is suitable for being snapped into the first stop ring groove, and the first stop block is suitable for extending into the first limiting ring groove.

10. The expansion joint of a faucet according to claim 9, characterized in that: The inlet end is formed with a first plug-in groove suitable for the first joint to extend therein, the first joint includes a first flow channel formed therein and a first sealing ring groove formed on its outer contour, the first sealing ring groove has a first sealing ring built in it, and the first limiting ring groove and the first sealing ring groove are arranged in order from far to near relative to the inlet end; And / or, the first joint includes an original connector, the original connector includes an internal thread, the original connector is suitable for being directly installed on the faucet through the internal thread, or, the connector is suitable for assembling a secondary connector through the internal thread, and the secondary connector is detachably connected to the faucet.

Images