A faucet body and tube-in-tube and pull-out spray quick installation mechanism

Abstract

The utility model relates to bathroom article technical field, and disclose a kind of faucet main body and pipe-in-pipe and pull out shower head quick installation mechanism, including silica gel outer tube, further include: inner tube, sleeve is located in the silica gel outer tube inside;Two quick-release connecting mechanisms are respectively arranged in the both ends of the inner tube, for realizing detachable connection between the inner tube and faucet main body and pull out shower head;The quick-release connecting mechanism includes the clamping seat fixedly connected to the end of the inner tube, and the clamping sleeve matched with the clamping seat clamping cooperation.This faucet main body and pipe-in-pipe and pull out shower head quick installation mechanism purpose is to solve the problem of connection process cumbersome inconvenient to later maintenance.

Description

Technical Field

[0001] This utility model relates to the field of bathroom products technology, specifically a quick installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out nozzle. Background Technology

[0002] Currently, the common installation method for connecting the faucet body, the bracket-type pipe-in-pipe water outlet hose, and the pull-out spray head mainly relies on the traditional threaded connection process. Specifically, this method requires first connecting one end of the inner hose to the water outlet end of the faucet body through a threaded fastener, then sleeve the flexible outer tube over the inner hose, and finally assembling the other end of the inner hose to the pull-out spray head using the same threaded connection method. This method is the assembly structure commonly used in the industry.

[0003] However, the aforementioned existing technologies have obvious drawbacks: their installation process is cumbersome and complex, requiring thread engagement operations to be performed on both ends one by one. This not only results in low assembly efficiency but also causes great inconvenience for later maintenance and replacement in actual use. In addition, frequent disassembly and assembly of threaded interfaces can easily lead to thread wear or seal failure, further affecting the reliability and service life of the connection. Therefore, there is an urgent need for a more efficient, reliable and easy-to-disassemble connection mechanism to overcome the above shortcomings. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of cumbersome connection process and inconvenience for later maintenance, and to propose a quick installation mechanism for the faucet body, the pipe-in-pipe, and the pull-out nozzle.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head, comprising a silicone outer tube, and further comprising:

[0007] Inner tube, fitted inside the silicone outer tube;

[0008] Two quick-release connection mechanisms are respectively set at both ends of the inner tube to realize the detachable connection between the inner tube and the faucet body and the pull-out nozzle;

[0009] The quick-release connection mechanism includes a snap-fit ​​seat fixedly connected to the end of the inner tube, and a snap-fit ​​sleeve that snaps into the snap-fit ​​seat.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the card holder includes:

[0012] An outer tube is snapped in place and connected to the end of the inner tube. The outer tube has multiple connection holes on its wall.

[0013] An elastic buckle is provided on the outside of the inner tube, with one end extending into the connecting hole;

[0014] The first limiting seat is located at the end of the outer tube that is furthest from the inner tube.

[0015] Furthermore, the snap-fit ​​sleeve includes:

[0016] The inner tube is snap-fitted and can be inserted into the inner tube to form an interference fit.

[0017] The second limiting seat is fixedly disposed on the outside of the snap-fit ​​inner tube;

[0018] An inclined protrusion is provided on the outside of the snap-fit ​​inner tube; when the snap-fit ​​inner tube is inserted into the snap-fit ​​outer tube, the inclined protrusion snaps into the connecting hole and engages with the elastic buckle, while the first limiting seat abuts against the second limiting seat.

[0019] Furthermore, the outer side of the snap-fit ​​inner tube is provided with at least one annular seal for achieving a sealed connection between the snap-fit ​​inner tube and the snap-fit ​​outer tube.

[0020] Furthermore, one of the snap-fit ​​inner tubes has an external threaded connector at its end for connecting to the faucet body; the other snap-fit ​​inner tube has an internal threaded connector at its end for connecting to the pull-out nozzle.

[0021] Furthermore, the elastic buckle is a single-piece metal spring, one end of which is fixed to the outer tube, and the other end is a free end that protrudes into the inside of the connection hole.

[0022] Furthermore, the free end of the elastic buckle is provided with a guide slope, which guides the inclined protrusion to undergo elastic deformation and slide into the buckling position when it comes into contact with the inclined protrusion.

[0023] Furthermore, the inclined protrusion has an inlet slope on one side near the insertion end of the snap-fit ​​inner tube, and a vertical locking surface on the other side for locking with the elastic snap fastener. The contact surfaces of the first limiting seat and the second limiting seat are one of a plane, a conical surface, or a toothed surface that meshes with each other, which are used to restrict the circumferential rotation of the snap-fit ​​sleeve relative to the snap-fit ​​seat.

[0024] Furthermore, the snap-fit ​​seat and the end of the inner tube are fixedly connected by injection molding, clamp locking, or threaded connection, and the ends of the external threaded connector and the internal threaded connector are also provided with end face sealing gaskets.

[0025] Furthermore, the annular seal is an O-ring.

[0026] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0027] This utility model uses two quick-release connection mechanisms to connect the inner tube to the faucet body and the inner tube to the pull-out nozzle, respectively. These quick-release mechanisms employ a snap-fit ​​connection between a locking seat and a locking sleeve, replacing the traditional threaded connection process. This effectively solves the problems of cumbersome installation steps and complex processes in existing technologies. There is no need to individually screw the threads on both ends; assembly can be completed simply by the quick snap-fit ​​between the locking seat and the locking sleeve, significantly improving assembly efficiency. Furthermore, compared to the inconvenience of repeatedly screwing the threads during later maintenance and replacement with threaded connections, the snap-fit ​​quick-release connection mechanism allows for rapid assembly and disassembly, significantly reducing maintenance difficulty. In addition, the problem of thread wear or sealing failure caused by frequent disassembly and assembly of threaded interfaces is avoided by using the snap-fit ​​connection between the locking seat and the locking sleeve, reducing wear on the connecting components and thus improving the reliability and service life of the overall connection structure. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the connection structure between the silicone outer tube and the snap-fit ​​sleeve of this utility model;

[0029] Figure 2 This is a schematic diagram of the overall explosive connection structure of this utility model;

[0030] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 This is a schematic diagram of the connection structure of the snap-fit ​​sleeve of this utility model;

[0032] Figure 5 This is a schematic diagram of the connection structure between the elastic buckle and the guide slope of this utility model.

[0033] In the diagram: 1. Silicone outer tube; 2. Inner tube; 3. Quick-release connection mechanism; 31. Snap-fit ​​seat; 311. Snap-fit ​​outer tube; 312. Connecting hole; 313. Elastic snap fastener; 314. First limit seat; 32. Snap-fit ​​sleeve; 321. Snap-fit ​​inner tube; 322. Second limit seat; 323. Inclined protrusion; 4. Annular seal; 5. External threaded connector; 6. Internal threaded connector; 7. End face sealing gasket;

[0034] 313a, Guide ramp; 323a, Inlet ramp; 323b, Vertical locking surface. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Combination Figures 1-5 As shown, this utility model discloses a quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head, including a silicone outer tube 1, and further comprising:

[0037] Inner tube 2 is fitted inside silicone outer tube 1;

[0038] Two quick-release connection mechanisms 3 are respectively set at both ends of the inner tube 2 to realize the detachable connection between the inner tube 2 and the faucet body and the pull-out nozzle;

[0039] The quick-release connection mechanism 3 includes a snap-fit ​​seat 31 fixedly connected to the end of the inner tube 2, and a snap-fit ​​sleeve 32 that snaps into the snap-fit ​​seat 31.

[0040] In a preferred embodiment, the present invention can be further configured such that the card holder 31 includes:

[0041] The outer tube 311 is snapped in and connected to the end of the inner tube 2. Multiple connection holes 312 are provided on the wall of the outer tube 311.

[0042] The elastic fastener 313 is disposed on the outside of the inner tube 2, with one end extending into the connecting hole 312;

[0043] The first limiting seat 314 is located at the end of the snap-fit ​​outer tube 311 away from the inner tube 2. The snap-fit ​​outer tube 311 of the snap-fit ​​seat 31 is connected to the inner tube 2. The connection hole 312 opened in its tube wall provides a space for the elastic snap fastener 313 to move. One end of the elastic snap fastener 313 is fixed to the outside of the inner tube 2, and the other end extends to the inside of the connection hole 312 to form an elastic support structure. When the snap-fit ​​sleeve 32 is inserted, the elastic snap fastener 313 undergoes elastic deformation under external pressure, providing a buffer for the snap-fit ​​process. The first limiting seat 314 limits the axial insertion depth of the snap-fit ​​sleeve 32 to ensure the fitting accuracy between the snap-fit ​​outer tube 311 and the snap-fit ​​sleeve 32.

[0044] In a preferred embodiment, the present invention can be further configured such that the snap-fit ​​sleeve 32 includes:

[0045] The inner tube 321 can be inserted into the inner tube 311 and form an interference fit.

[0046] The second limiting seat 322 is fixedly installed on the outside of the snap-fit ​​inner tube 321;

[0047] An inclined protrusion 323 is located outside the snap-fit ​​inner tube 321. When the snap-fit ​​inner tube 321 is inserted into the snap-fit ​​outer tube 311, the inclined protrusion 323 snaps into the connecting hole 312 and engages with the elastic fastener 313. At the same time, the first limiting seat 314 abuts against the second limiting seat 322. When the snap-fit ​​inner tube 321 of the snap-fit ​​sleeve 32 is inserted into the snap-fit ​​outer tube 311, the interference fit generates initial axial resistance to prevent accidental dislodgement. The inclined protrusion 323 outside the snap-fit ​​inner tube 321 slides along the connecting hole 312, forcing the elastic fastener 313 to deform. When the inclined protrusion 323 completely passes through the connecting hole 312, the elastic fastener 313 rebounds and snaps into the groove of the inclined protrusion 323, forming a mechanical lock. At the same time, the first limiting seat 314 abuts against the second limiting seat 322, restricting the axial displacement of the snap-fit ​​sleeve 32. The circumferential rotation constraint is achieved through the abutment surface of the limiting seat.

[0048] In a preferred embodiment, the present invention can be further configured such that: at least one annular sealing element 4 is provided on the outside of the snap-fit ​​inner tube 321 for achieving a sealed connection between the snap-fit ​​inner tube 321 and the snap-fit ​​outer tube 311. The annular sealing element 4 is fitted onto the outside of the snap-fit ​​inner tube 321. When the snap-fit ​​inner tube 321 is inserted into the snap-fit ​​outer tube 311, the annular sealing element 4 is compressed and undergoes elastic deformation, filling the tiny gap between the snap-fit ​​inner tube 321 and the snap-fit ​​outer tube 311. Its sealing principle is based on the elastic recovery force of the material, which further adheres to the tube wall under the action of fluid pressure, forming a double sealing barrier, effectively preventing water or other media leakage.

[0049] In a preferred embodiment, this utility model can be further configured as follows: one end of the snap-fit ​​inner tube 321 is provided with an external threaded connector 5 for connecting to the faucet body; the other end of the snap-fit ​​inner tube 321 is provided with an internal threaded connector 6 for connecting to the pull-out nozzle. The snap-fit ​​inner tube 321 has an external threaded connector 5 and an internal threaded connector 6 at both ends, respectively, which connect to the standard interface of the faucet body or the pull-out nozzle through threaded engagement. The external threaded connector 5 is adapted to the internal thread interface of the faucet body, and the internal threaded connector 6 is adapted to the external thread interface of the pull-out nozzle, achieving compatibility between the quick-release mechanism and the traditional threaded interface. This design retains the convenience of the quick-release mechanism while being compatible with the installation standards of existing equipment.

[0050] In a preferred embodiment, the present invention can be further configured as follows: the elastic fastener 313 is a sheet-shaped metal spring, one end of which is fixed to the snap-fit ​​outer tube 311, and the other end is a free end that protrudes into the connection hole 312. The elastic fastener 313 adopts a metal spring structure, one end of which is fixed to the snap-fit ​​outer tube 311, and the free end protrudes into the connection hole 312. The high elastic modulus of the metal material ensures that the fastener can maintain its mechanical properties after repeated deformation. The protrusion design of the free end forms a rigid contact with the inclined protrusion 323 when the snap-fit ​​sleeve 32 is inserted, and absorbs the impact energy through elastic deformation to avoid failure caused by plastic deformation.

[0051] In a preferred embodiment, the present invention can be further configured such that: the free end of the elastic buckle 313 is provided with a guide slope 313a, which is used to guide the elastic buckle 313 to undergo elastic deformation and slide into the buckling position when it contacts the inclined protrusion 323. When the guide slope 313a of the free end of the elastic buckle 313 contacts the inclined protrusion 323 of the snap sleeve 32, the slope guides the elastic buckle 313 to deform along the snap outer tube 311. This slope design reduces the frictional resistance during the snapping process, makes the insertion force of the snap sleeve 32 more uniform, and at the same time reduces the risk of fatigue fracture of the metal spring due to stress concentration, thereby improving the service life of the mechanism.

[0052] In a preferred embodiment, this utility model can be further configured as follows: the inclined protrusion 323 has an inlet slope 323a on one side near the insertion end of the snap-fit ​​inner tube 321, and a vertical locking surface 323b on the other side for locking with the elastic snap-fit ​​member 313. The mutual abutting surfaces of the first limiting seat 314 and the second limiting seat 322 are one of a plane, a conical surface, or a toothed surface that meshes with each other, used to restrict the circumferential rotation of the snap-fit ​​sleeve 32 relative to the snap-fit ​​seat 31. The inlet slope 323a of the inclined protrusion 323 guides the deformation of the elastic snap-fit ​​member 313 when inserted. The vertical locking surface 323b fits tightly with the elastic snap-fit ​​member 313 after snapping into place, preventing the snap-fit ​​sleeve 32 from falling out in the opposite direction. If the abutting surfaces of the first limiting seat 314 and the second limiting seat 322 are planes, gapless axial positioning can be achieved; if they are conical or toothed surfaces, circumferential rotation is further restricted by friction or mechanical meshing, ensuring the stability of the connection structure under fluid pressure fluctuations.

[0053] In a preferred embodiment, this utility model can be further configured as follows: the end of the snap-fit ​​seat 31 and the inner tube 2 are fixedly connected by injection molding, clamp locking, or threaded connection. The ends of the external threaded connector 5 and the internal threaded connector 6 are also provided with end face sealing gaskets 7. The injection molding process of the snap-fit ​​seat 31 and the inner tube 2 makes the two form a rigid whole, eliminating the risk of loosening in traditional threaded connections. The clamp locking or threaded fixing method facilitates disassembly during later maintenance. The end face sealing gaskets 7 at the ends of the external threaded connector 5 and the internal threaded connector 6 fill the thread gap by compression deformation, and form a double seal in combination with the annular seal 4, completely solving the leakage problem caused by wear in traditional threaded connections.

[0054] In a preferred embodiment, the present invention can be further configured as follows: the annular seal 4 is an O-ring. The annular seal 4 adopts an O-ring structure, and its circular cross section forms a uniform contact stress between the inner tube 321 and the outer tube 311. The material of the O-ring, such as silicone rubber, has good water resistance and anti-aging properties, and maintains elasticity during long-term use to ensure stable sealing performance. Its sealing mechanism is based on the compression and rebound characteristics of the material, and can maintain effective sealing even when the pipeline pressure fluctuates.

[0055] The specific working principle of the quick installation mechanism for the faucet body, the pipe-in-pipe, and the pull-out nozzle of this utility model is as follows:

[0056] First, prepare for installation, ensuring that the silicone outer tube 1 is fitted over the inner tube 2. In the quick-release connection mechanism 3 at both ends of the inner tube 2, the snap-fit ​​outer tube 311 of the snap-fit ​​seat 31 is connected to the inner tube 2. One end of the elastic buckle 313 is fixed to the snap-fit ​​outer tube 311, and the other end extends to the inside of the connection hole 312. The first limiting seat 314 is located at the end of the snap-fit ​​outer tube 311. The snap-fit ​​inner tube 321 of the snap-fit ​​sleeve 32 is provided with an annular seal 4, a second limiting seat 322 and an inclined protrusion 323 on the outside. The snap-fit ​​inner tubes 321 at both ends are respectively equipped with an external threaded connector 5 and an internal threaded connector 6, and their ends are provided with end face sealing gaskets 7.

[0057] During installation, first screw the snap-fit ​​sleeve 32 with the external threaded connector 5 onto the faucet body, and achieve a preliminary seal through the end face sealing gasket 7. Then, align the snap-fit ​​seat 31 at one end of the inner tube 2 with the snap-fit ​​sleeve 32, so that the snap-fit ​​inner tube 321 is inserted into the snap-fit ​​outer tube 311. During the insertion process, the guide slope 323a of the inclined protrusion 323 contacts the guide slope 313a of the elastic buckle 313, guiding the elastic buckle 313 to deform. At the same time, the annular seal 4 is squeezed and deformed to form a seal. After the inclined protrusion 323 has completely passed through the connection hole 312, the elastic buckle 313 rebounds, and its free end engages with the vertical locking surface 323b of the inclined protrusion 323. The first limit seat 314 abuts against the second limit seat 322, completing the end connection.

[0058] Similarly, the snap-fit ​​sleeve 32 with the internal thread connector 6 is screwed onto the pull-out nozzle, and the connection is completed by the engagement of the snap-fit ​​seat 31 and the snap-fit ​​sleeve 32 at the other end. When disassembling, the elastic buckle 313 is moved to disengage it from the vertical locking surface 323b, and the snap-fit ​​seat 31 and the snap-fit ​​sleeve 32 are pulled in the opposite direction to pull the snap-fit ​​inner tube 321 out of the snap-fit ​​outer tube 311. Then, the external thread connector 5 and the internal thread connector 6 can be unscrewed for maintenance or replacement.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out nozzle, comprising a silicone outer tube (1), characterized in that, Also includes: Inner tube (2) is fitted inside the silicone outer tube (1); Two quick-release connection mechanisms (3) are respectively set at both ends of the inner tube (2) to realize the detachable connection between the inner tube (2) and the faucet body and the pull-out nozzle; The quick-release connection mechanism (3) includes a snap-fit ​​seat (31) fixedly connected to the end of the inner tube (2), and a snap-fit ​​sleeve (32) that snaps into the snap-fit ​​seat (31).

2. The quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 1, characterized in that, The card holder (31) includes: The outer tube (311) is connected to the end of the inner tube (2), and the outer tube (311) has multiple connecting holes (312) on its wall. An elastic buckle (313) is provided on the outside of the inner tube (2), with one end extending into the connecting hole (312). The first limiting seat (314) is located at the end of the outer tube (311) away from the inner tube (2).

3. The quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 2, characterized in that, The snap-fit ​​sleeve (32) includes: The snap-fit ​​inner tube (321) can be inserted into the snap-fit ​​outer tube (311) and form an interference fit; The second limiting seat (322) is fixedly disposed outside the snap-fit ​​inner tube (321); An inclined protrusion (323) is provided outside the snap-fit ​​inner tube (321); when the snap-fit ​​inner tube (321) is inserted into the snap-fit ​​outer tube (311), the inclined protrusion (323) is snapped into the connecting hole (312) and engaged with the elastic buckle (313), while the first limiting seat (314) abuts against the second limiting seat (322).

4. The quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 3, characterized in that, The outer side of the snap-fit ​​inner tube (321) is also provided with at least one annular seal (4) for achieving a sealed connection between the snap-fit ​​inner tube (321) and the snap-fit ​​outer tube (311).

5. The quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 3, characterized in that, One of the snap-fit ​​inner tubes (321) has an external threaded connector (5) at its end for connecting to the faucet body; the other snap-fit ​​inner tube (321) has an internal threaded connector (6) at its end for connecting to the pull-out nozzle.

6. The quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 3, characterized in that, The elastic buckle (313) is a sheet metal spring, one end of which is fixed to the snap-fit ​​outer tube (311), and the other end is a free end that protrudes into the inside of the connection hole (312).

7. The quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 6, characterized in that, The free end of the elastic buckle (313) is provided with a guide slope (313a) to guide it to undergo elastic deformation and slide into the buckling position when it comes into contact with the inclined protrusion (323).

8. The quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 3, characterized in that, The inclined protrusion (323) has an inlet inclined surface (323a) on one side near the insertion end of the snap-fit ​​inner tube (321), and a vertical locking surface (323b) on the other side for locking with the elastic snap fastener (313). The mutual contact surfaces of the first limiting seat (314) and the second limiting seat (322) are one of a plane, a conical surface or a toothed surface that meshes with each other, which are used to restrict the circumferential rotation of the snap-fit ​​sleeve (32) relative to the snap-fit ​​seat (31).

9. A quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 5, characterized in that, The end of the snap-fit ​​seat (31) and the end of the inner tube (2) are fixedly connected by injection molding, clamp locking or threaded connection. The ends of the external threaded connector (5) and the internal threaded connector (6) are also provided with end face sealing gaskets (7).

10. A quick-installation mechanism for a faucet body, a pipe-in-pipe, and a pull-out spray head according to claim 4, characterized in that, The annular seal (4) is an O-ring.

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