CN216666607U - Switch structure applied to basin faucet or bathtub faucet or concealed valve - Google Patents

Abstract

The utility model relates to a switch structure applied to a washbasin faucet, a bathtub faucet or a concealed valve, which is characterized by comprising a valve core seat, a valve core, a surface cover body and a knob body, wherein the valve core is embedded on the valve core seat, a valve core rod is arranged on the valve core, at least one limiting convex strip is arranged on the circumferential surface of the valve core rod, the length direction of the limiting convex strip is enabled to be in the same direction with the axial direction of the valve core rod, an embedded hole is formed in the knob body, strip-shaped clamping grooves which are equal to the limiting convex strips in number and correspond to the limiting convex strips in position are formed in the hole wall of the embedded hole, the knob body is rotatably arranged on the surface cover body, the outer end of the valve core rod penetrates through the surface cover body and then is slidably embedded in the embedded hole, the limiting convex strips are slidably embedded in the strip-shaped clamping grooves, and a telescopic gap is reserved between the end surface of the valve core rod and the hole bottom of the embedded hole. When the switch structure is applied, the cutting valve core rod is not required to be processed, the installation difficulty is small, the installation efficiency is high, and the switch structure has the advantages of simple structure, convenience in manufacturing, high reliability, strong applicability and the like.

Description

Switch structure applied to basin faucet or bathtub faucet or concealed valve

Technical Field

The utility model relates to the field of bathroom accessories, in particular to a switch structure applied to a basin faucet or a bathtub faucet or a concealed valve.

Background

At present, most basin faucets, bathtub faucets and concealed valves which are opened and closed in a rotating mode are composed of a valve core body, a face cover and a knob body, wherein the valve core rod is arranged on the valve core body and fixedly connected with the knob body after penetrating through the face cover. When the washbasin faucet is installed on the washbasin, the washbasin faucet and the valve core body are respectively positioned on the upper surface and the lower surface of the washbasin. When the bathtub faucet is installed on a bathtub, the surface cover and the valve core body are respectively positioned on the upper surface and the lower surface of the bathtub. When the concealed valve is installed on the wall, the valve core body is fixed in the concealed groove on the wall, and the face cover is arranged on the notch of the concealed groove. Because the thickness of different washbasins and bathtubs is thin and thick, and the concealed grooves arranged on different walls are also deep and shallow. Therefore, when the valve core rod is long, the knob body is too protruded, and even the accurate and stable limiting effect on the face cover cannot be achieved. When the valve core rod is too short, the situation that the knob body cannot be connected with the valve core rod is easy to occur. Therefore, when the valve core rod is machined at present, the length of the valve core rod is generally made longer, and when the valve core rod is installed, an installer can conveniently position the face cover and the knob body reasonably by cutting out the valve core rod with proper length. Therefore, when the basin faucet, the bathtub faucet and the concealed valve are installed, the valve core rod is cut frequently. Because the most of current case pole is the metal material, it is very inconvenient that it cuts, and this can increase the installation degree of difficulty and reduce the installation effectiveness again.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and the defects, and provides a switch structure applied to a washbasin faucet or a bathtub faucet or a concealed valve.

The technical scheme of the utility model is realized as follows:

a switch structure applied to a washbasin faucet, a bathtub faucet or a concealed valve is characterized by comprising a valve core seat, a valve core, a face cover body and a knob body, wherein the valve core is embedded on the valve core seat, a valve core rod is arranged on the valve core, at least one limiting convex strip is arranged on the circumferential surface of the valve core rod, the length direction of the limiting convex strip is enabled to be in the same direction with the axial direction of the valve core rod, an embedded hole is formed in the knob body, strip-shaped clamping grooves which are equal to the limiting convex strips in number and correspond to the limiting convex strips in position are formed in the hole wall of the embedded hole, the knob body is rotatably arranged on the face cover body, the outer end of the valve core rod penetrates through the face cover body and then is slidably embedded in the embedded hole, the limiting convex strips are slidably embedded in the strip-shaped clamping grooves, and a telescopic gap is reserved between the end face of the valve core rod and the bottom of the embedded hole.

Preferably, the circumferential surface of the valve core seat is provided with an external thread, the face cover body comprises a clamping cover and a limiting cylinder, the clamping cover is provided with a through sleeve hole, the inner circumferential surface of one end of the limiting cylinder is provided with a first internal thread, the outer circumferential surface of the other end of the limiting cylinder is provided with a limiting convex ring, one end of the limiting cylinder is arranged on the sleeve hole in a penetrating manner, the limiting convex ring is pressed on the outer surface of the clamping cover, the limiting cylinder is sleeved on the outer side of the valve core rod, the first internal thread is in threaded connection with the external thread, and the knob body is rotatably arranged at the other end of the limiting cylinder.

Preferably, the knob body includes knob cap, suit pipe, the hole of suit pipe is for inlaying the dress hole, the bar draw-in groove is seted up on the hole wall of the hole of suit pipe, the one end of suit pipe can inlay the dress in spacing section of thick bamboo with rotating, the fixed suit of knob cap is on the other end of suit pipe.

Preferably, a protruding ring part is arranged on the outer circumferential surface of the sleeving pipe, a positioning protruding ring and a second internal thread are respectively arranged on the inner circumferential surface of the other end of the limiting cylinder, the positioning protruding ring is located on the outer side of the second internal thread, the inner diameter of the positioning protruding ring is smaller than the aperture of the second internal thread, the inner diameter of the positioning protruding ring is smaller than the outer diameter of the protruding ring part, the sleeving pipe can rotatably penetrate through the positioning protruding ring and the second internal thread, the protruding ring part is located on the inner side of the positioning protruding ring, a threaded sleeve is screwed on the second internal thread, the threaded sleeve can be sleeved on the sleeving pipe in a relatively rotating mode, and the aperture of an inner hole of the threaded sleeve is smaller than the outer diameter of the protruding ring part.

Preferably, the sleeving pipe is sleeved with at least one limiting rubber ring, and the limiting rubber ring is tightly pressed on the hole wall of the inner hole of the threaded sleeve.

Preferably, a spline portion is arranged on the outer circumferential surface of the other end of the sleeving pipe, a spline groove is formed in the inner end face of the knob cap, a first threaded hole penetrating into the spline groove is formed in the outer wall of the knob cap, the spline groove is sleeved on the spline portion, and a first set screw is screwed in the first threaded hole and tightly pressed on the spline portion.

Preferably, an embedded groove is formed in the end face of the outer end of the knob cap, and a decorative sheet is embedded in the embedded groove.

Preferably, a groove is formed in the end face of the inner end of the knob cap, the bottom of the groove is fixedly sleeved at the other end of the sleeving pipe, a wear-resistant ring is embedded in the groove, the outer circumferential surface of the wear-resistant ring is pressed against the groove wall of the groove, and the wear-resistant ring is pressed against the end face of the other end of the limiting cylinder or the limiting convex ring.

Preferably, the switch structure applied to the basin faucet, the bathtub faucet or the concealed valve further comprises a toggle block, a plug-in convex part is arranged on the side wall of the toggle block, a plug-in hole is formed in the circumferential surface of the knob cap, a second threaded hole penetrating into the plug-in hole is formed in the end face of the inner end of the knob cap, the plug-in convex part is plugged into the plug-in hole, and a second set screw is screwed into the second threaded hole and tightly pressed on the plug-in convex part.

Preferably, the surface of the limiting convex ring facing the clamping cover is provided with a limiting ring groove surrounding the limiting cylinder, a rubber ring is embedded in the limiting ring groove, and the rubber ring is tightly pressed on the clamping cover.

The utility model has the beneficial effects that: in the switch structure, a telescopic gap is reserved between the end surface of the valve core rod and the bottom of the embedding hole. Therefore, the length of the valve core rod is not easy to influence the installation and the positioning of the face cover body and the knob body. And the flexible space can satisfy the effect of flexible regulation, when this switch structure is used to basin tap, bathtub tap and on secretly installing the valve, just need not when installing basin tap, bathtub tap and secretly installing the valve, cuts the case pole and handles like this, and this helps reducing the installation degree of difficulty and improves the installation effectiveness, and this switch structure's suitability is very strong. Through the spacing sand grip and the bar draw-in groove that adopt the bar. Therefore, telescopic adjustment cannot be influenced, and a very good limiting effect can be achieved, so that the valve core rod can be stably driven to rotate by the knob body. And the valve core rod is slidably embedded in the embedding hole. Therefore, the knob body and the valve core rod can be reliably assembled together, the rotating force transmission between the knob body and the valve core rod is stable and reliable, the reliability of the switch structure is high, and the applicability of the switch structure is improved. Meanwhile, the switch structure is simple in overall structure and convenient to manufacture.

Drawings

Fig. 1 is a schematic perspective view of a switch structure according to the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the switch structure of the present invention.

Fig. 3 is a schematic sectional structure view of the limiting cylinder of the present invention.

Fig. 4 is a schematic perspective view of the valve core of the present invention.

Fig. 5 is a schematic sectional view of the knob body according to the present invention.

Fig. 6 is a sectional structure view of the knob cap of the present invention.

Fig. 7 is a schematic perspective view of the sleeving tube in the present invention.

FIG. 8 is a schematic sectional view of the sleeving tube in the present invention.

Fig. 9 is a perspective view of the thread bush of the present invention.

Fig. 10 is a schematic perspective view of the dial block of the present invention.

Fig. 11 is a schematic perspective view of a water valve according to the present invention.

Fig. 12 is a structural schematic diagram of a cut-away state of the water valve in the utility model.

Detailed Description

As shown in fig. 1, fig. 2, fig. 4 and fig. 5, the switch structure applied to a basin faucet or a bathtub faucet or a concealed valve according to the present invention includes a valve core seat 1, a valve core 2, a face cover 3 and a knob body 4, wherein the valve core 2 is embedded in the valve core seat 1, the valve core 2 is provided with a valve core rod 21, the circumferential surface of the valve core rod 21 is provided with at least one limit protruding strip 211, the length direction of the limit protruding strip 211 is the same as the axial direction of the valve core rod 21, the knob body 4 is provided with an embedded hole 41, the hole wall of the embedded hole 41 is provided with strip-shaped slots 411 having the same number and corresponding positions as the limit protruding strips 211, the knob body 4 is rotatably provided on the face cover 3, the outer end of the valve core rod 21 passes through the face cover 3 and then slides in the embedded hole 41, and the limit protruding strip-shaped slots 411 are provided with the limit protruding strips 211 sliding, and a telescopic gap 10 is reserved between the end surface of the valve core rod 21 and the bottom of the embedding hole 41.

In the switch structure of the present invention, the telescopic gap 10 is reserved between the end surface of the valve core rod 21 and the bottom of the fitting hole 41. Therefore, the length of the valve core rod 21 is not easy to influence the installation and positioning of the surface cover body 3 and the knob body 4. And flexible clearance 10 can satisfy the effect of flexible regulation, like this when this switch structure is applied to basin tap, bathtub tap and secretly adorn the valve, just need not when installing basin tap, bathtub tap and secretly adorn the valve, cut the case pole and handle, this helps reducing the installation degree of difficulty and improves the installation effectiveness, this switch structure's suitability is very strong.

Through the spacing sand grip 211 and the bar draw-in groove 411 that adopt the bar. Therefore, the telescopic adjustment cannot be influenced, and a very good limiting effect can be achieved, so that the knob body 4 can be ensured to stably drive the valve core rod 21 to rotate. The valve core rod 21 is slidably fitted in the fitting hole 41. This enables the knob body 4 and the spool rod 21 to be reliably assembled together, the rotational force transmission therebetween is stable and reliable, and the reliability of the switch structure is high, which also contributes to the improvement of the applicability of the switch structure.

Meanwhile, the whole structure of the switch structure is very simple, and the switch structure is very convenient to manufacture.

As shown in fig. 2, 4 and 5, when the plurality of limit protrusions 211 are provided on the spool rod 21, the limit protrusions 211 together form a spline structure, so that the strip-shaped engaging grooves 411 in the insertion hole 41 form a spline groove structure. Therefore, the knob body 4 and the valve core rod 21 can be assembled in a sliding mode through the spline structure, the structure is very reliable, the stability and reliability of power transmission are improved, and the reliability and the applicability of the switch structure are improved.

As shown in fig. 2 and 3, the external thread 11 is disposed on the circumferential surface of the valve core housing 1, the face cover body 3 includes a clamping cover 31 and a limiting cylinder 32, the clamping cover 31 is disposed with a through hole 311, the inner circumferential surface of one end of the limiting cylinder 32 is disposed with a first internal thread 321, the outer circumferential surface of the other end of the limiting cylinder 32 is disposed with a limiting convex ring 322, one end of the limiting cylinder 32 is disposed on the through hole 311, the limiting convex ring 322 is pressed on the outer surface of the clamping cover 31, the limiting cylinder 32 is disposed on the outer side of the valve core rod 21, the first internal thread 321 is screwed with the external thread 11, and the knob body 4 is rotatably disposed on the other end of the limiting cylinder 32. By adopting the structure, the clamping cover 31 can move close to the valve core seat 1 when the limiting cylinder 32 is screwed, so that the clamping cover 31 can be clamped and positioned through the valve core seat 1, other parts are not needed for fixing the clamping cover 31, the difficulty in mounting and positioning the face cover body 3 can be reduced, and the stability and the reliability of mounting and positioning the face cover body 3 can be improved.

As shown in fig. 11 and 12, when the switch structure is applied to a water valve 100 such as a washbowl tap, a bathtub tap, or a concealed valve, the valve cartridge 1 is fixed in the concealed box 200.

When the water valve 100 is installed on a basin or a bathtub, the built-in box 200 is installed on the bottom surface of the basin or the bathtub, the clip cover 31 is installed on the top surface of the basin or the bathtub, and the limit cylinder 32 penetrates through the basin or the bathtub. Thus, when the limiting cylinder 32 is screwed, the clamping cover 31 and the concealed installation box 200 can be tightly pressed on the basin or the bathtub, and the installation of the water valve 100 on the basin or the bathtub can be well met.

When the water valve 100 is installed in the hidden groove of the wall, the hidden packing box 200 is fixed at the bottom of the hidden groove, and the clamping cover 31 is covered on the notch of the hidden groove, so that the clamping cover 31 can be tightly pressed on the wall when the limiting cylinder 32 is screwed. This allows for good wall mounting of the water valve 100.

As shown in fig. 11 and 12, it can be seen from the above that the water valve 100 applied to the basin or the bathtub has a common structure with the water valve 100 applied to the wall. In the actual manufacturing process, most of the structures of the water valves 100 applied to the places can be made to be the same, and the water valves 100 applied to different places can meet the use requirements of different places only by adopting the water outlet pipe heads 300 in different directions, so that the design and production cost of enterprises can be reduced.

As shown in fig. 2 and 5, the knob body 4 includes a knob cap 42 and a sleeving tube 43, an inner hole of the sleeving tube 43 is an insertion hole 41, the strip-shaped slot 411 is formed in a hole wall of the inner hole of the sleeving tube 43, one end of the sleeving tube 43 is rotatably inserted into the limiting cylinder 32, and the knob cap 42 is fixedly sleeved on the other end of the sleeving tube 43. Thus, the knob body 4 has a simple and reliable structure, which not only facilitates the processing of the knob body 4, but also facilitates the operation of the knob body 4.

As shown in fig. 2, 3, 7 and 8, a protruding ring portion 431 is provided on an outer circumferential surface of the sleeving tube 43, a positioning protruding ring 323 and a second internal thread 324 are provided on an inner circumferential surface of the other end of the limiting cylinder 32, respectively, the positioning protruding ring 323 is located outside the second internal thread 324, an inner diameter of the positioning protruding ring 323 is smaller than an aperture of the second internal thread 324, and an inner diameter of the positioning protruding ring 323 is smaller than an outer diameter of the protruding ring portion 431, the sleeving tube 43 can rotatably pass through the positioning protruding ring 323 and the second internal thread 324, the protruding ring portion 431 is located inside the positioning protruding ring 323, a threaded sleeve 325 is screwed on the second internal thread 324, the threaded sleeve 325 can be sleeved on the sleeving tube 43 in a relatively rotatable manner, and an inner aperture of the threaded sleeve 325 is smaller than an outer diameter of the protruding ring portion 431. Therefore, the sleeving pipe 43 can be conveniently and stably limited on the limiting cylinder 32, and the stability and the reliability of the installation and the positioning of the sleeving pipe 43 are improved, so that the reliability of the switch structure is further improved.

As shown in fig. 9, a protruding ring 320 is disposed on an end surface of the threaded sleeve 325 away from the protruding ring portion 431, and an outer diameter of the protruding ring 320 is smaller than an outer diameter of the threaded sleeve 325, and an outer shape of the protruding ring 320 matches with a wrench hole of the external hexagonal wrench. Thus, the threaded sleeve 325 can be attached and detached by using an external hexagonal wrench, which contributes to improvement in convenience in mounting and positioning the threaded sleeve 325 and further to improvement in convenience in maintenance.

As shown in fig. 7 and 8, a first annular groove 430 is formed on the outer circumferential surface of the sheathing tube 43, and the protruding ring portion 431 is formed by a snap spring which is clamped in the first annular groove 430. Therefore, the limiting device not only can play a very good limiting role, but also can be convenient to manufacture, process and maintain.

As shown in fig. 2, 7 and 8, at least one limiting rubber ring 432 is sleeved on the sleeving pipe 43, and the limiting rubber ring 432 is tightly pressed on the inner hole wall of the threaded sleeve 325. Through the setting of spacing rubber ring 432, can play flexible limiting displacement, this condition that not hard up can not only be avoided appearing in the knob body 4, can also satisfy the rotation demand of knob body 4 well, and this can bring better use and experience to help further improving this switch structure's reliability and suitability.

As shown in fig. 7 and 8, a second annular groove 433 is formed on an outer circumferential surface of the sheathing tube 43, and the limiting rubber ring 432 is embedded in the second annular groove 433. This stably restrains the stopper rubber 432 to the ferrule 43, thereby contributing to further improvement in reliability.

As shown in fig. 5 to 8, a spline portion 434 is disposed on an outer circumferential surface of the other end of the sleeving tube 43, a spline groove 421 is disposed on an inner end surface of the knob cap 42, a first threaded hole 422 penetrating into the spline groove 421 is disposed on an outer wall of the knob cap 42, the spline groove 421 is sleeved on the spline portion 434, and a first set screw 423 is screwed into the first threaded hole 422, so that the first set screw 423 is tightly pressed on the spline portion 434. The knob cap 42 can be butted with the sleeving pipe 43 very reliably and stably, the slipping condition can be avoided during rotation, and the knob cap 42 is also very convenient to disassemble, so that the knob cap 42 can be conveniently maintained and upgraded, and the applicability of the switch structure is further improved.

As shown in fig. 5, a shielding cap 420 is fitted to the outer opening of the first threaded hole 422. The effect of shielding protection can be played like this to avoid moisture, dust, debris to influence the installing and removing of first holding screw 423, and the influence of the first screw hole 422 that just can significantly reduce like this to knob cap 42 aesthetic property.

As shown in fig. 5 and 6, an insertion groove 424 is opened on an outer end surface of the knob cap 42, and a decorative piece 425 is inserted into the insertion groove 424. This contributes to the aesthetic appearance and grade of the switch structure, and thus contributes to the market competitiveness of the switch structure.

The decorative pieces 425 are colored and/or patterned stone, plastic, metal, etc. Such as marble, tile, etc. with a textured pattern. Thus, the decorative sheet 425 can perform a very good decorative function.

As shown in fig. 2, 5 and 6, a groove 426 is formed on the inner end surface of the knob cap 42, the groove bottom of the groove 426 is fixedly sleeved on the other end of the sleeving tube 43, a wear-resistant ring 427 is embedded in the groove 426, the outer circumferential surface of the wear-resistant ring 427 is pressed against the groove wall of the groove 426, and the wear-resistant ring 427 is pressed against the end surface of the other end of the limiting cylinder 32 or the limiting convex ring 322. The wear-resistant ring 427 can play a dual role of limiting and wear-resisting, which helps to improve the stability and reliability of the installation and positioning of the knob cap 42.

As shown in fig. 5 and 6, the spline grooves 421 are located at the bottom of the grooves 426. Thus, the assembly requirements can be well met.

As shown in fig. 1, 5 and 6, the knob cap 42 has an anti-slip thread 428 formed on a circumferential surface thereof. Therefore, the slipping condition can be avoided when the knob cap 42 is rotated, and better use experience can be brought to a user.

As shown in fig. 1, 5 and 6, the anti-slip pattern 428 is a vertical pattern or a cross-hatch pattern. The anti-slip pattern 428 thus provides a very good anti-slip effect.

As shown in fig. 1, 2, 6 and 10, the switch structure applied to a basin faucet, a bathtub faucet or a concealed valve further includes a dial block 44, a side wall of the dial block 44 is provided with an insertion convex portion 441, a circumferential surface of the knob cap 42 is provided with an insertion hole 429, an inner end surface of the knob cap 42 is provided with a second threaded hole 440 penetrating into the insertion hole 429, the insertion convex portion 441 is inserted into the insertion hole 429, and a second set screw 450 is screwed into the second threaded hole 440, so that the second set screw 450 is tightly pressed on the insertion convex portion 441. The setting of this toggle block 44 can make things convenient for the thumb to lean on when rotating knob cap 42, can more relax like this, conveniently rotate knob cap 42 to can bring better use experience for the user. The position of the dial block 44 is fixed by the second set screw 450, so that different dial blocks 44 can be replaced and matched conveniently, the aesthetic requirements of different users can be better met, and the applicability of the switch structure is further improved.

As shown in fig. 2 and fig. 3, a limiting ring groove 326 surrounding the limiting cylinder 32 is formed on the surface of the limiting convex ring 322 facing the clamping cover 31, a rubber ring 327 is embedded in the limiting ring groove 326, and the rubber ring 327 is tightly pressed on the clamping cover 31. Therefore, the limiting cylinder 32 can be well limited and prevented from loosening, and the flexible jacking function can be achieved, so that the situation that the clamping cover 31 is scratched is avoided. And thus, a good sealing function can be achieved, which can prevent moisture outside the clamping cover 31 from permeating into the inner side of the clamping cover 31, so that the components inside the clamping cover 31 can be prevented from being polluted, and the inner side of the switch structure can be kept clean all the time.

Claims (10)

1. A switch structure applied to a basin faucet or a bathtub faucet or a concealed valve is characterized in that: the valve core comprises a valve core seat (1), a valve core (2), a face cover body (3) and a knob body (4), wherein the valve core (2) is embedded on the valve core seat (1), a valve core rod (21) is arranged on the valve core (2), at least one limiting convex strip (211) is arranged on the circumferential surface of the valve core rod (21), the length direction of the limiting convex strip (211) is enabled to be in the same direction with the axial direction of the valve core rod (21), an embedded hole (41) is formed in the knob body (4), strip-shaped clamping grooves (411) which are equal in number and correspond to the limiting convex strips (211) in position are formed in the hole wall of the embedded hole (41), the knob body (4) can be rotatably arranged on the face cover body (3), the outer end of the valve core rod (21) penetrates through the face cover body (3) and then is slidably embedded in the embedded hole (41), and the limiting convex strips (211) are slidably embedded in the strip-shaped clamping grooves (411), and a telescopic gap (10) is reserved between the end surface of the valve core rod (21) and the bottom of the embedding hole (41).

2. A switch construction for use in a basin tap or a bathtub tap or a concealed valve according to claim 1, further comprising: the valve core structure comprises a valve core seat (1), wherein the circumferential surface of the valve core seat (1) is provided with an external thread (11), a face cover body (3) comprises a clamping cover (31) and a limiting cylinder (32), the clamping cover (31) is provided with a penetrating sleeve hole (311), the inner circumferential surface of one end of the limiting cylinder (32) is provided with a first internal thread (321), the outer circumferential surface of the other end of the limiting cylinder (32) is provided with a limiting convex ring (322), one end of the limiting cylinder (32) penetrates through the sleeve hole (311), the limiting convex ring (322) is pressed on the outer surface of the clamping cover (31), the limiting cylinder (32) is further sleeved on the outer side of the valve core rod (21), the first internal thread (321) is in threaded connection with the external thread (11), and a knob body (4) can be rotatably arranged at the other end of the limiting cylinder (32).

3. A switch construction for use in a basin tap or a bathtub tap or a concealed valve according to claim 2, wherein: the knob body (4) comprises a knob cap (42) and an sleeving pipe (43), an inner hole of the sleeving pipe (43) is an embedded hole (41), a strip-shaped clamping groove (411) is formed in the hole wall of the inner hole of the sleeving pipe (43), one end of the sleeving pipe (43) can be rotatably embedded in a limiting cylinder (32), and the knob cap (42) is fixedly sleeved on the other end of the sleeving pipe (43).

4. A switch construction for use with a basin tap or a bathtub tap or a concealed valve according to claim 3, wherein: a convex ring part (431) is arranged on the outer circumferential surface of the sleeving pipe (43), a positioning convex ring (323) and a second internal thread (324) are respectively arranged on the inner circumferential surface of the other end of the limiting cylinder (32), the positioning convex ring (323) is positioned outside the second internal thread (324), the inner diameter of the positioning convex ring (323) is smaller than the aperture of the second internal thread (324), and the inner diameter of the positioning convex ring (323) is smaller than the outer diameter of the convex ring part (431), the sleeving pipe (43) can rotatably penetrate through the positioning convex ring (323) and the second internal thread (324), the convex ring part (431) is positioned at the inner side of the positioning convex ring (323), the second internal thread (324) is screwed with a thread sleeve (325), the threaded sleeve (325) can be sleeved on the sleeving pipe (43) in a relatively rotating mode, and the aperture of an inner hole of the threaded sleeve (325) is smaller than the outer diameter of the convex ring portion (431).

5. The switch structure of claim 4, wherein the switch structure is applied to a basin tap, a bathtub tap or a concealed valve, and the switch structure comprises: the sleeving pipe (43) is sleeved with at least one limiting rubber ring (432), and the limiting rubber ring (432) is tightly pressed on the hole wall of the inner hole of the threaded sleeve (325).

6. A switch construction for use with a basin tap or a bathtub tap or a concealed valve according to claim 3, wherein: be provided with spline portion (434) on the outer circumferential surface of suit pipe (43) other end, spline groove (421) have been seted up on the interior terminal surface of knob cap (42), set up first screw hole (422) that run through to spline groove (421) on the outer wall of knob cap (42), spline groove (421) suit is on spline portion (434), the spiro union has first holding screw (423) in first screw hole (422) to make first holding screw (423) sticis on spline portion (434).

7. A switch construction for use with a basin tap or a bathtub tap or a concealed valve according to claim 3, wherein: an embedded groove (424) is formed in the end face of the outer end of the knob cap (42), and a decorative sheet (425) is embedded in the embedded groove (424).

8. A switch construction for use with a basin tap or a bathtub tap or a concealed valve according to claim 3, wherein: the end face of the inner end of the knob cap (42) is provided with a groove (426), the bottom of the groove (426) is fixedly sleeved at the other end of the sleeving pipe (43), a wear-resistant ring (427) is embedded in the groove (426), the outer circumferential surface of the wear-resistant ring (427) is pressed against the groove wall of the groove (426), and the wear-resistant ring (427) is pressed against the end face of the other end of the limiting cylinder (32) or the limiting convex ring (322).

9. A switch construction for use with a basin tap or a bathtub tap or a concealed valve according to claim 3, wherein: the knob cap is characterized by further comprising a toggle block (44), an insertion convex part (441) is arranged on the side wall of the toggle block (44), an insertion hole (429) is formed in the circumferential surface of the knob cap (42), a second threaded hole (440) penetrating into the insertion hole (429) is formed in the end face of the inner end of the knob cap (42), the insertion convex part (441) is inserted into the insertion hole (429), a second set screw (450) is screwed into the second threaded hole (440), and the second set screw (450) is tightly pressed on the insertion convex part (441).

10. A switch construction for use in a basin tap or a bathtub tap or a concealed valve according to claim 2, wherein: the limiting convex ring (322) is provided with a limiting ring groove (326) surrounding the limiting cylinder (32) on the surface facing the clamping cover (31), a rubber ring (327) is embedded in the limiting ring groove (326), and the rubber ring (327) is tightly pressed on the clamping cover (31).

Images