An embedded base assembly and embedded base connection mechanism for a bathtub faucet

Abstract

This utility model discloses a pre-embedded base assembly for a bathtub faucet, including a pre-embedded base, a rotating inner core, and a base cover. The rotating inner core is rotatably installed in the mounting cavity of the pre-embedded base. The bottom of the base cover has two positioning plugs for insertion into the outlets of the first and second flow channels of the rotating inner core to position it. This utility model also discloses a pre-embedded base connection mechanism for a bathtub faucet, including a sleeve assembly, the aforementioned pre-embedded base, the rotating inner core, and multiple pins. When it is found that the pre-embedded base is connected to the underground hot and cold water pipes in the wrong direction, simply loosen the pins, rotate the sleeve assembly by a certain angle, and the first and second water pipes of the rotating sleeve assembly will drive the rotating inner core to rotate accordingly by a certain angle. Then, tighten the pins to maintain the normal direction of the hot and cold water flow of the bathtub faucet. The operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of bathtub faucet technology, and in particular to a pre-embedded base assembly and a pre-embedded base connection mechanism for bathtub faucets. Background Technology

[0002] The base of a bathtub faucet is usually embedded below the floor, called the embedded base. The embedded base contains an inner core for connecting to the hot and cold water pipes. The top of the base connects to the bathtub faucet or its water pipes.

[0003] In the prior art, Chinese utility model patent CN202767185U discloses a floor-standing bathtub faucet universal embedded body, which includes an embedded body, a movable core placed in the cavity of the embedded body, and a base placed above the movable core. The base is connected to the embedded body by screws, and the movable core can rotate and adjust within the cavity below the base. The base has two upward-extending screws for connecting and fixing a disc at the lower end of the faucet water pipe. The base can rotate a certain angle relative to the embedded body to adjust the angle of the faucet.

[0004] The shortcomings of the aforementioned prior art are:

[0005] 1. The chassis only serves to cover the top opening of the cavity and does not press down on the movable core. During transportation, the movable core may shake or rotate. During packaging, it is necessary to wrap the movable core with packing cotton to fill the gap between the movable core and the cavity wall, preventing collisions and friction that could lead to inefficient packaging. The two through holes on the top of the chassis are for water pipes to connect to the two water inlets of the movable core. However, during packaging, transportation, and until the faucet is installed, these two through holes and the two water inlets of the movable core are always open, making them susceptible to debris falling in and clogging the inlets.

[0006] 2. If, after product installation, it is found that the hot and cold water pipes of the pre-embedded main body are reversed with the underground hot and cold water pipes, the bathtub faucet and its water pipes need to be removed from the chassis. The hot and cold water pipes of the bathtub faucet need to be adjusted 180° before being reinstalled on the chassis to maintain the correct direction of the hot and cold water flow. The above operation steps are complicated, and the space at the connection point between the chassis and the bathtub faucet and its water pipes is small, making disassembly and reassembly quite troublesome. Utility Model Content

[0007] The first objective of this utility model is to overcome the shortcomings of the prior art and provide a pre-embedded base assembly for a bathtub faucet. The base cover is assembled onto the pre-embedded base by means of pins to cover the rotating inner core in the pre-embedded base. Two positioning plugs of the base cover are inserted into the first and second flow channels of the rotating inner core to achieve positioning and sealing of the rotating inner core. This can prevent the rotating inner core from shaking or colliding during transportation, and can also prevent foreign objects from entering the first and second flow channels of the inner core and causing blockage. The assembly is convenient and efficient.

[0008] The present invention provides a pre-embedded base assembly for a bathtub faucet, comprising a pre-embedded base having an installation cavity, a rotating inner core pivotally mounted in the installation cavity, and a base cover detachably connected to the pre-embedded base and used for positioning the rotating inner core.

[0009] The pre-embedded base is provided with a first flow channel and a second flow channel for connecting to a cold water pipe / hot water pipe;

[0010] The rotating inner core is provided with a first inner core flow channel that is in communication with the first flow channel of the base and a second inner core flow channel that is in communication with the second flow channel of the base. The outlets of the first inner core flow channel and the second inner core flow channel are both located on the top surface of the rotating inner core.

[0011] The bottom of the base cover is provided with two positioning plugs, which are respectively inserted into the water outlets of the first flow channel and the second flow channel of the inner core.

[0012] The base cover is fastened to the top surface of the embedded base by multiple pins, which are connected to the internal threaded holes of the embedded base.

[0013] In one of the alternative technical solutions, the positioning plug is integrally formed with the base cover.

[0014] In one of the alternative technical solutions, the base cover is a plastic element.

[0015] In one of the alternative technical solutions, each of the positioning plugs is provided with a plug sealing ring.

[0016] In one of the optional technical solutions, the upper end of the pre-embedded base is provided with a plurality of base recesses spaced apart along the circumference, and a base positioning boss is formed between any two adjacent base recesses, and the internal threaded hole is provided on the base positioning boss.

[0017] The base cover is fastened to the base positioning boss by the pin.

[0018] In one of the alternative technical solutions, the base cover includes a cover body and a reinforcing base integrally disposed on the top surface of the cover body, and the positioning plug is integrally disposed on the bottom surface of the cover body.

[0019] The reinforcing base is provided with a plurality of base positioning protrusions spaced apart along the circumference. The plurality of base positioning protrusions extend to the edge of the reinforcing base and are aligned with the corresponding base positioning protrusion.

[0020] The pin passes through the base positioning boss and the upper cover body, and is connected to the base positioning boss.

[0021] In one of the alternative technical solutions, the reinforcing base is provided with multiple reinforcing ribs, and any two adjacent reinforcing ribs are arranged in parallel or cross directions.

[0022] The second aspect of this utility model aims to overcome the shortcomings of the prior art and provide a pre-embedded base connection mechanism for bathtub faucets. When it is found that the first flow channel and the second flow channel of the pre-embedded base are connected to the underground hot and cold water pipes in reverse, it is only necessary to loosen the pin, rotate the sleeve assembly 180°, and the first water pipe and the second water pipe will drive the rotating inner core to rotate 180° accordingly. Then, tighten the pin to maintain the normal direction of hot and cold water in the bathtub faucet. The operation is simple.

[0023] The present invention provides a pre-embedded base connection mechanism for a bathtub faucet, comprising a sleeve assembly and the pre-embedded base, rotating inner core and multiple pins as described in any of the preceding technical solutions.

[0024] The sleeve assembly includes a sleeve base, a protective sleeve connected to the sleeve base, and a first water pipe and a second water pipe arranged in the protective sleeve.

[0025] The sleeve base is provided with two base through holes. The lower ends of the first water pipe and the second water pipe pass downward through the base through holes respectively. The lower end of the first water pipe can be selectively inserted into the outlet of the first flow channel / the second flow channel of the inner core, and the lower end of the second water pipe can be selectively inserted into the outlet of the second flow channel / the first flow channel of the inner core.

[0026] The sleeve base is located on top of the pre-embedded base, and the sleeve base is provided with a plurality of arc-shaped adjustment holes spaced apart along the circumference for the pin to pass through and be adjusted.

[0027] Each of the pins passes through one of the arc-shaped adjustment holes and is connected to the pre-embedded base.

[0028] In one of the alternative technical solutions, the protective sleeve is fitted with an annular cover plate, and the annular cover plate is located above the sleeve base;

[0029] The embedded base is connected to an upwardly extending embedded box, the sleeve base is located inside the embedded box, and the annular cover plate covers the top opening of the embedded box.

[0030] In one of the optional technical solutions, the sleeve base is evenly distributed with n arc-shaped adjustment holes, and the top surface of the pre-embedded base is evenly distributed with 2n internal threaded holes, where n is a natural number ≥ 2; when the sleeve base is rotated at any angle, there is at least one internal threaded hole below each arc-shaped adjustment hole.

[0031] The above technical solution has the following beneficial effects:

[0032] The present invention provides a pre-embedded base assembly for a bathtub faucet, comprising a pre-embedded base, a rotating inner core, and a base cover.

[0033] The pre-embedded base has an installation cavity and two flow channels for connecting to cold / hot water pipes. The rotating inner core is installed in the installation cavity and can rotate 360°. The first flow channel of the rotating inner core is connected to the first flow channel of the base, and the second flow channel of the rotating inner core is connected to the second flow channel of the base. The outlets of both the first and second flow channels are located on the top surface of the rotating inner core. Two positioning plugs are located at the bottom of the base cover for inserting into the outlets of the first and second flow channels of the inner core to position the rotating inner core.

[0034] During assembly, the base cover is assembled onto the pre-embedded base using pins. Two positioning plugs are inserted into the outlets of the first and second flow channels of the inner core, respectively, to position and seal the rotating inner core. This prevents the rotating inner core from shaking or colliding during subsequent transportation and also prevents debris from entering and clogging the first and second flow channels of the inner core.

[0035] The present invention provides a pre-embedded base connection mechanism for bathtub faucets, including a sleeve assembly, the aforementioned pre-embedded base, a rotating inner core, and multiple pins.

[0036] The sleeve assembly includes a sleeve base, a protective sleeve, a first water pipe, and a second water pipe. The sleeve base is connected to the lower end of the protective sleeve. The first and second water pipes are installed in the protective sleeve, with their lower ends passing through the sleeve base to connect with the outlets of the first and second flow channels of the inner core, respectively.

[0037] The sleeve base has multiple arc-shaped adjustment holes spaced circumferentially for pins to pass through and adjust their position. The sleeve base is connected to the top of the pre-embedded base by multiple pins. The arc-shaped adjustment holes ensure that the pins can be adjusted and connected in place.

[0038] When it is found that the first and second flow channels of the pre-embedded base are connected to the underground hot and cold water pipes in reverse, simply loosen the pin, rotate the sleeve assembly by a certain angle, and the first and second water pipes will drive the inner core to rotate by a certain angle accordingly. Then tighten the pin to maintain the normal direction of hot and cold water in the bathtub faucet. The operation is simple. Attached Figure Description

[0039] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0040] Figure 1 A perspective view of a pre-embedded base assembly provided in an embodiment of this utility model;

[0041] Figure 2 A cross-sectional view of a pre-embedded base assembly provided in an embodiment of this utility model;

[0042] Figure 3 An exploded view of a pre-embedded base assembly provided in an embodiment of this utility model;

[0043] Figure 4 A three-dimensional view of the rotating inner core installed in a pre-embedded base;

[0044] Figure 5 A three-dimensional view of the rotating inner core;

[0045] Figure 6 A cross-sectional view of the rotating inner core;

[0046] Figure 7 A sectional view of the rotating inner core installed in the pre-embedded base;

[0047] Figure 8 This is a 3D view of the base cover from an upward angle.

[0048] Figure 9 This is a 3D view of the base cover from a top-down perspective.

[0049] Figure 10 A perspective view of a pre-embedded base connection mechanism provided in an embodiment of this utility model;

[0050] Figure 11 An exploded view of the pre-embedded base connection mechanism provided in an embodiment of this utility model;

[0051] Figure 12 A cross-sectional view of a pre-embedded base connection mechanism provided in an embodiment of this utility model;

[0052] Figure 13 This is a three-dimensional view of the sleeve base;

[0053] Figure 14 This is a 3D view of the sleeve base being fastened to the pre-embedded base by multiple pins. Detailed Implementation

[0054] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0055] like Figure 1-8 As shown, an embodiment of the present invention provides a pre-embedded base assembly for a bathtub faucet, including a pre-embedded base 1 having a mounting cavity 13, a rotating inner core 2 pivotally mounted in the mounting cavity 13, and a base cover 3 detachably connected to the pre-embedded base 1 and used for positioning the rotating inner core 2.

[0056] The pre-embedded base 1 is provided with a base first flow channel 11 and a base second flow channel 12 for connecting with cold water pipes / hot water pipes.

[0057] The rotating inner core 2 is provided with an inner core first flow channel 21 that is connected to the base first flow channel 11 and an inner core second flow channel 22 that is connected to the base second flow channel 12. The outlets of the inner core first flow channel 21 and the inner core second flow channel 22 are both located on the top surface of the rotating inner core 2.

[0058] The bottom of the base cover 3 is provided with two positioning plugs 33, which are inserted into the outlets of the first flow channel 21 and the second flow channel 22 of the inner core, respectively.

[0059] The base cover 3 is fastened to the top surface of the pre-embedded base 1 by multiple pins 4, and the pins 4 are connected to the internal threaded holes 14 of the pre-embedded base 1.

[0060] The pre-embedded base assembly provided by this utility model is used for the installation of bathtub faucets.

[0061] The embedded base assembly includes an embedded base 1, a rotating inner core 2, and a base cover 3.

[0062] Among them, the pre-embedded base 1 and the rotating inner core 2 are pre-embedded parts, which are used to be pre-embedded below the floor; the base cover 3 is a positioning and protection part, which is used to position and protect the rotating inner core 2 in the pre-embedded base 1 during transportation and transfer. The base cover 3 needs to be removed during installation and then connected to the water pipe of the bathtub faucet.

[0063] The pre-embedded base 1 is provided with a first base flow channel 11, a second base flow channel 12, and an installation cavity 13. The first base flow channel 11 and the second base flow channel 12 are located on opposite sides of the installation cavity 13. The first base flow channel 11 and the second base flow channel 12 are used to connect to underground cold water pipes and hot water pipes, respectively. During normal connection, the first base flow channel 11 is connected to the underground hot water pipe, and the second base flow channel 12 is connected to the underground cold water pipe.

[0064] The rotating inner core 2 has a vertically extending first inner core channel 21 and a second inner core channel 22. A ring of inner core grooves 23 is provided on the circumferential surface of the rotating inner core 2. The inlet of the first inner core channel 21 is located in the inner core groove 23, and the outlet of the first inner core channel 21 is located on the top surface of the rotating inner core 2. The inlet of the second inner core channel 22 is located on the bottom surface of the rotating inner core 2, and the outlet of the second inner core channel 22 is located on the top surface of the rotating inner core 2.

[0065] The rotating inner core 2 is installed in the mounting cavity 13 and can be rotated 360°. The first flow channel 11 of the base is connected to the groove 23 of the inner core, so that no matter how the rotating inner core 2 rotates, the first flow channel 21 of the inner core is always connected to the first flow channel 11 of the base through the groove 23. There is a certain distance between the bottom of the rotating inner core 2 and the bottom of the mounting cavity 13, thus forming a water cavity 131. The outlet of the second flow channel 12 of the base is connected to the water cavity 131, so that no matter how the rotating inner core 2 rotates, the second flow channel 22 of the inner core is always connected to the second flow channel 12 of the base through the water cavity 131. A sealing ring is provided on the rotating inner core 2 to separate the water cavity 131 from the groove 23 of the inner core and prevent the mixing of hot and cold water.

[0066] When the pre-embedded base 1 is normally connected to the hot and cold water pipes underground, the first inner core channel 21 supplies hot water to the bathtub faucet, and the second inner core channel 221 supplies cold water to the bathtub faucet.

[0067] The bottom of the base cover 3 is provided with two positioning plugs 33, which are used to insert into the outlets of the first flow channel 21 and the second flow channel 22 of the inner core to achieve positioning of the rotating inner core 2.

[0068] During assembly, the base cover 3 is assembled onto the pre-embedded base 1 using pins 4, sealing the top opening of the mounting cavity 13 to prevent debris from entering the mounting cavity 13 and thus providing protection. The two positioning plugs 33 are respectively inserted into the outlets of the first flow channel 21 and the second flow channel 22 of the inner core to position and seal the rotating inner core 2. This prevents the rotating inner core 2 from shaking or colliding during subsequent transportation and also prevents debris from entering the first flow channel 21 and the second flow channel 22 of the inner core and causing blockage.

[0069] In one embodiment, the positioning plug 33 is integrally formed with the base cover 3, which facilitates integral processing, has high structural strength, and a long service life.

[0070] In one embodiment, the base cover 3 is a plastic component, which is low in cost and light in weight. The plastic positioning plug 33 has a certain degree of deformation capability, which makes it easy to insert into the outlet of the first flow channel 21 / second flow channel 22 of the inner core, and will not cause wear on the outlet.

[0071] In one embodiment, such as Figure 2 and Figure 8 As shown, each positioning plug 33 is provided with a plug sealing ring 34, which can adaptively fill the gap between the positioning plug 33 and the inner surface of the outlet of the first flow channel 21 / second flow channel 22 of the inner core, so that the positioning plug 33 fits tightly in the outlet of the first flow channel 21 / second flow channel 22 of the inner core, thereby improving the positioning effect of the rotating inner core 2.

[0072] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the upper end of the pre-embedded base 1 is provided with a plurality of base recesses 15 spaced apart along the circumference, and a base positioning boss 16 is formed between any two adjacent base recesses 15, and an internal threaded hole 14 is provided on the base positioning boss 16.

[0073] The base cover 3 is fastened to the base positioning boss 16 by pins 4.

[0074] In this embodiment, the upper end of the pre-embedded base 1 has a plurality of base recesses 15 evenly distributed on its circumferential surface, thereby forming a base positioning boss 16 between any two adjacent base recesses 15. Each base positioning boss 16 is provided with an internal threaded hole 14.

[0075] After the base cover 3 is fastened to the base positioning boss 16 by the pin 4, a portion of the edge of the base cover 3 is above the base recess 15, thus making the base recess 15 a receiving groove. When the user picks up or puts down the embedded base assembly, he / she opens his / her palm from above the base cover 3 and then bends his / her fingers, which can be inserted into the receiving groove to pick up the embedded base assembly.

[0076] When disassembling the base cover 3, after removing the pin 4, the user can insert their fingers into the base recess 15 and flip open the base cover 3.

[0077] In one embodiment, such as Figure 1 , Figure 3 and Figure 9As shown, the base cover 3 includes a cover body 31 and a reinforcing base 32 integrally disposed on the top surface of the cover body 31, and a positioning plug 33 integrally disposed on the bottom surface of the cover body 31.

[0078] The reinforcing base 32 is provided with a plurality of base positioning bosses 321 at intervals along the circumference. The plurality of base positioning bosses 321 extend to the edge of the reinforcing base 32 and are aligned with the corresponding base positioning bosses 16.

[0079] The pin 4 passes through the base positioning boss 321 and the upper cover body 31, and is connected to the base positioning boss 16.

[0080] In this embodiment, the base cover 3 is made of plastic and requires a reinforced structural layout. The base cover 3 includes a cover body 31 and a reinforcing base 32. The reinforcing base 32 is integrally disposed on the top surface of the cover body 31, and the positioning plug 33 is integrally disposed on the bottom surface of the cover body 31.

[0081] The upper cover body 31 is generally disc-shaped, and the reinforcing base 32 is mainly located in the central area of ​​the upper cover body 31. Multiple base positioning bosses 321 are evenly distributed along the circumference of the reinforcing base 32, each extending to the edge of the reinforcing base 32 and aligned with a lower base positioning boss 16. The base positioning bosses 321 and the upper cover body 31 are provided with through holes for the pin 4 to pass through. During assembly, the pin 4 is passed through the through holes of the base positioning bosses 321 and the upper cover body 31, and then connected to the internal threaded hole 14 of the base positioning boss 16.

[0082] In this embodiment, a base positioning boss 321 is provided in the area of ​​the upper cover body 31 where the pin 4 needs to be installed, which improves the structural strength of the area and helps to improve the connection stability of the pin 4.

[0083] In one embodiment, such as Figure 9 As shown, the reinforcing base 32 is provided with multiple reinforcing ribs 322. Any two adjacent reinforcing ribs 322 are arranged in parallel or cross directions, which further improves the structural strength of the reinforcing base 32 and also improves the overall structural strength of the base cover 3.

[0084] like Figure 10-14 As shown, an embodiment of the present invention provides a pre-embedded base connection mechanism for a bathtub faucet, including a sleeve assembly 5 and the pre-embedded base 1, rotating inner core 2 and multiple pins 4 as described in any of the preceding embodiments.

[0085] The sleeve assembly 5 includes a sleeve base 51, a protective sleeve 52 connected to the sleeve base 51, and a first water pipe 53 and a second water pipe 54 laid in the protective sleeve 52.

[0086] The sleeve base 51 is provided with two base through holes 512. The lower ends of the first water pipe 53 and the second water pipe 54 pass downward through the base through holes 512 respectively. The lower end of the first water pipe 53 can be selectively inserted into the water outlet of the inner core first flow channel 21 / inner core second flow channel 22, and the lower end of the second water pipe 54 can be selectively inserted into the water outlet of the inner core second flow channel 22 / inner core first flow channel 21.

[0087] The sleeve base 51 is located on top of the pre-embedded base 1. The sleeve base 51 is provided with a plurality of arc-shaped adjustment holes 513 at intervals along the circumference for the pins 4 to pass through and adjust.

[0088] Each pin 4 passes through an arc-shaped adjustment hole 513 and is connected to the pre-embedded base 1.

[0089] The pre-embedded base connection mechanism provided by this utility model is used for connecting and installing bathtub faucets.

[0090] The pre-embedded base connection mechanism includes a sleeve assembly 5, the aforementioned pre-embedded base 1, a rotating inner core 2, and multiple pins 4.

[0091] The sleeve assembly 5 is the vertical pipe part of the bathtub faucet, which includes a sleeve base 51, a protective sleeve 52, a first water pipe 53, and a second water pipe 54. The sleeve base 51, also known as a flange, has an upwardly extending connecting post 511 at its center, and the lower end of the protective sleeve 52 is connected to the connecting post 511. Two base through holes 512 of the sleeve base 51 are provided in the connecting post 511.

[0092] The first water pipe 53 and the second water pipe 54 are installed in the protective sleeve 52. The lower ends of the first water pipe 53 and the second water pipe 54 pass through the two base through holes 512 respectively to connect with the outlets of the first inner core flow channel 21 and the second inner core flow channel 22. The upper ends of the first water pipe 53 and the second water pipe 54 are connected to the bathtub faucet respectively to supply hot and cold water to the bathtub faucet.

[0093] The sleeve base 51 has multiple arc-shaped adjustment holes 513 spaced circumferentially for the pins 4 to pass through and adjust their position. During assembly, the sleeve base 51 is connected to the top of the pre-embedded base 1 by the multiple pins 4. The arc-shaped adjustment holes 513 ensure that the pins 4 can be adjusted and connected in place.

[0094] When the first flow channel 11 and the second flow channel 12 of the pre-embedded base 1 are normally connected to the underground hot and cold water pipes, the first flow channel 11 is connected to the hot water pipe, the first water pipe 53 is connected to the outlet of the first flow channel 21 of the inner core, the second flow channel 21 is connected to the cold water pipe, and the second water pipe 54 is connected to the outlet of the second flow channel 22 of the inner core. Then, the first water pipe 53 is used to supply hot water to the bathtub faucet, and the second water pipe 54 is used to supply cold water to the bathtub faucet. Figure 12As shown, the water supply to the bathtub faucet is cold on the left and hot on the right.

[0095] When the first flow channel 11 and the second flow channel 12 of the pre-embedded base 1 are connected in reverse to the underground hot and cold water pipes, the first flow channel 11 is connected to the cold water pipe, the first water pipe 53 is connected to the outlet of the first flow channel 21 of the inner core, the second flow channel 21 is connected to the hot water pipe, and the second water pipe 54 is connected to the outlet of the second flow channel 22 of the inner core. Then, the first water pipe 53 is used to supply cold water to the bathtub faucet, and the second water pipe 54 is used to supply hot water to the bathtub faucet.

[0096] If the first water pipe 53 and the second water pipe 54 are left in their original positions, the hot and cold water flow directions of the bathtub faucet will inevitably be reversed. Figure 12 For example, the water supply to the bathtub faucet is hot on the left and cold on the right.

[0097] The user simply needs to loosen pin 4 and rotate the sleeve assembly 5 by a certain angle, such as 180°. The first water pipe 53 and the second water pipe 53 will drive the inner core 2 to rotate synchronously, causing the first water pipe 53 and the second water pipe 53 to switch positions relative to the center. Then, lock pin 4. After the position is switched, the first water pipe 53 and the second water pipe 53 still supply water to the bathtub faucet in the manner of left cold and right hot, thus maintaining the normal direction of hot and cold water in the bathtub faucet, making operation simple.

[0098] The pre-embedded base connection mechanism provided by this utility model uses the pin 4 removed from the base cover 3 directly for the sleeve base 51, without the need for a separate pin 4, which helps to save costs.

[0099] In one embodiment, such as Figure 10-12 As shown, the protective sleeve 52 is fitted with an annular cover plate 55, which is located above the sleeve base 51.

[0100] The embedded base 1 is connected to an upwardly extending embedded box 17, the sleeve base 51 is located inside the embedded box 17, and the annular cover plate 55 covers the top opening of the embedded box 17.

[0101] In this embodiment, the pre-embedded box 17 and the annular cover plate 55 form a chamber to cover the sleeve base 51, etc., to provide protection and facilitate later maintenance.

[0102] In one embodiment, such as Figure 3-4 and Figure 13-14 As shown, the sleeve base 51 has n arc-shaped adjustment holes 513 evenly distributed on it, and the top surface of the pre-embedded base 1 has 2n internal thread holes 14 evenly distributed on it, where n is a natural number ≥ 2.

[0103] The sleeve base 51 can be rotated at any angle, and there is at least one internal threaded hole 14 below each arc-shaped adjustment hole 513.

[0104] In this embodiment, the sleeve base 51 has n evenly distributed arc-shaped adjustment holes 513, where n is a natural number ≥ 2. The number of internal threaded holes 14 on the pre-embedded base 1 is twice the number of arc-shaped adjustment holes 513. Preferably, the sleeve base 51 has 4 evenly distributed arc-shaped adjustment holes 513, and the top surface of the pre-embedded base 1 has 8 base positioning bosses 16 and internal threaded holes 14 evenly distributed.

[0105] The central angle of the arc-shaped adjustment hole 513 is greater than the central angle between the two internal threaded holes 14, so as to ensure that when the entire sleeve assembly 5 is adjusted, the sleeve base 51 can rotate at any angle, and there is at least one internal threaded hole 14 below each arc-shaped adjustment hole 513 for connection and fixation by pin 4.

[0106] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0107] The above are merely the principles and preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of this utility model, and these modifications should also be considered within the scope of protection of this utility model.

Claims

1. A pre-embedded base assembly for a bathtub faucet, characterized in that, It includes a pre-embedded base (1) with a mounting cavity (13), a rotating inner core (2) pivotally mounted in the mounting cavity (13), and a base cover (3) detachably connected to the pre-embedded base (1) and used for positioning the rotating inner core (2); The pre-embedded base (1) is provided with a base first flow channel (11) and a base second flow channel (12) for connecting with cold water pipes / hot water pipes; The rotating inner core (2) is provided with an inner core first flow channel (21) that is connected to the base first flow channel (11) and an inner core second flow channel (22) that is connected to the base second flow channel (12). The outlets of the inner core first flow channel (21) and the inner core second flow channel (22) are both located on the top surface of the rotating inner core (2). The bottom of the base cover (3) is provided with two positioning plugs (33), which are respectively inserted into the outlets of the first flow channel (21) and the second flow channel (22) of the inner core; The base cover (3) is fastened to the top surface of the pre-embedded base (1) by a plurality of pins (4), the pins (4) being connected to the internal threaded hole (14) of the pre-embedded base (1).

2. The embedded base assembly for a bathtub faucet according to claim 1, characterized in that, The positioning plug (33) is integrally formed with the base cover (3).

3. The embedded base assembly for a bathtub faucet according to claim 1, characterized in that, The base cover (3) is a plastic component.

4. The embedded base assembly for a bathtub faucet according to claim 1, characterized in that, Each of the positioning plugs (33) is provided with a plug sealing ring (34).

5. The embedded base assembly for a bathtub faucet according to claim 1, characterized in that, The upper end of the pre-embedded base (1) is provided with a plurality of base recesses (15) spaced apart along the circumference, and a base positioning boss (16) is formed between any two adjacent base recesses (15), and the internal thread hole (14) is provided on the base positioning boss (16). The base cover (3) is fastened to the base positioning boss (16) by the pin (4).

6. The embedded base assembly for a bathtub faucet according to claim 5, characterized in that, The base cover (3) includes a cover body (31) and a reinforcing base (32) integrally disposed on the top surface of the cover body (31), and the positioning plug (33) is integrally disposed on the bottom surface of the cover body (31). The reinforcing base (32) is provided with a plurality of base positioning bosses (321) spaced apart along the circumference. The plurality of base positioning bosses (321) extend to the edge of the reinforcing base (32) and are aligned with the corresponding base positioning bosses (16). The pin (4) passes through the base positioning boss (321) and the upper cover body (31) and is connected to the base positioning boss (16).

7. The embedded base assembly for a bathtub faucet according to claim 6, characterized in that, The reinforcing base (32) is provided with multiple reinforcing ribs (322), and any two adjacent reinforcing ribs (322) are arranged in parallel or cross directions.

8. A pre-embedded base connection mechanism for a bathtub faucet, characterized in that, It includes a sleeve assembly (5) and a pre-embedded base (1) as described in any one of claims 1-7, a rotating inner core (2) and a plurality of pins (4); The sleeve assembly (5) includes a sleeve base (51), a protective sleeve (52) connected to the sleeve base (51), and a first water pipe (53) and a second water pipe (54) arranged in the protective sleeve (52); The sleeve base (51) is provided with two base through holes (512). The lower ends of the first water pipe (53) and the second water pipe (54) pass downward through the base through holes (512) respectively. The lower end of the first water pipe (53) can be selectively inserted into the outlet of the inner core first flow channel (21) / the inner core second flow channel (22). The lower end of the second water pipe (54) can be selectively inserted into the outlet of the inner core second flow channel (22) / the inner core first flow channel (21). The sleeve base (51) is located on top of the pre-embedded base (1), and the sleeve base (51) is provided with a plurality of arc-shaped adjustment holes (513) spaced along the circumferential direction for the pin (4) to pass through and adjust. Each of the pins (4) passes through one of the arc-shaped adjustment holes (513) and is connected to the pre-embedded base (1).

9. The pre-embedded base connecting mechanism for a bathtub faucet according to claim 8, characterized in that, The protective sleeve (52) is fitted with an annular cover plate (55), which is located above the sleeve base (51); The embedded base (1) is connected to an upwardly extending embedded box (17), the sleeve base (51) is located inside the embedded box (17), and the annular cover plate (55) covers the top opening of the embedded box (17).

10. The pre-embedded base connecting mechanism for a bathtub faucet according to claim 8, characterized in that, The sleeve base (51) is evenly distributed with n arc-shaped adjustment holes (513), and the top surface of the pre-embedded base (1) is evenly distributed with 2n internal thread holes (14), where n is a natural number ≥ 2; The sleeve base (51) can rotate at any angle, and there is at least one internal threaded hole (14) below each of the arc-shaped adjustment holes (513).

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