Hand wheel fixing structure and pull-out type double handle kitchen faucet

Abstract

A hand wheel fixing structure and a pull-out type double handle kitchen faucet, the hand wheel fixing structure comprises a hand wheel, a screw, a sealing ring and a decorative cover, the hand wheel is provided with a cavity, a connecting seat with a spline tooth, a connecting cavity, a counterbore and a connecting hole and an exhaust and tool hole provided on a partition plate; the decorative cover comprises a cover plate part and a cylindrical part, the cylindrical part is provided with an annular groove; the screw passes through the connecting hole and extends into the connecting seat, the sealing ring is arranged in the annular groove, the cylindrical part is inserted into the connecting cavity, the cover plate part is embedded in the counterbore, the sealing ring is tightly matched with the connecting cavity to fix the decorative cover, and the exhaust and tool hole is opposite to a suspended end of the cylindrical part. The decorative cover is convenient to assemble with the connecting cavity, and only needs to be directly inserted; the decorative cover is disassembled by using a rod-shaped tool to separate the decorative cover from the connecting cavity, and the decorative cover is not damaged and can be repeatedly used.

Description

Technical Field

[0001] This utility model relates to a kitchen faucet. Background Technology

[0002] The existing technology, Chinese patent 202422396639.8, describes an improved handwheel faucet, comprising a faucet body, valve core, handwheel, button, positioning rod, spring, decorative cover, washer, and screw. The faucet body includes a valve core cavity and a positioning groove; the handwheel includes a splined tooth hole, washer cavity, countersunk hole, button hole, and guide limiting hole; the spring is located in the button hole, the button slides in contact with the button hole, and the upper end of the spring engages with the spring cavity; the positioning rod extends into the button hole through the guide limiting hole and is fixed to a radial fixing hole; the splined head of the valve stem of the valve core is inserted into the splined tooth hole, the washer is located in the washer cavity, and the screw passes through the washer and engages with the splined head; the decorative cover is detachably engaged with the countersunk hole; the positioning rod is fitted into the positioning groove; pressing the button disengages the positioning rod from the positioning groove, entering the working state. The handwheel is equipped with a locking device; under normal conditions, the handwheel and valve core cavity are locked together, and the handwheel only rotates when the button is pressed to unlock it. The problem is that when disassembling the handwheel, the decorative cover must be removed first; removing the decorative cover is inconvenient and easily damaged; and it requires professional maintenance. Utility Model Content

[0003] The purpose of this utility model is to provide a handwheel fixing structure that features easy assembly and disassembly of the decorative cover.

[0004] This utility model is implemented as follows: a handwheel fixing structure, characterized by including a handwheel, screw, sealing ring, and decorative cover.

[0005] The handwheel is equipped with a cavity, a splined connecting seat, a connecting cavity, a countersunk hole, a connecting hole on the partition, and an exhaust / tool ​​hole.

[0006] The decorative cover includes a cover plate portion and a cylindrical portion, with an annular groove on the cylindrical portion;

[0007] The screw passes through the connecting hole and extends into the connecting seat. The sealing ring is located in the annular groove. The cylindrical part is inserted into the connecting cavity. The cover plate and the countersunk hole fit together. The sealing ring and the connecting cavity fit tightly to fix the decorative cover. The vent and tool hole is opposite to the suspended end of the cylindrical part.

[0008] The handwheel fixing structure is characterized in that the diameter of the connecting seat is smaller than the diameter of the connecting cavity.

[0009] The handwheel fixing structure is characterized in that the decorative cover is made of plastic or metal.

[0010] A pull-out double-handle kitchen faucet, characterized by the following: it includes a faucet body, a hot water valve core, a cold water valve core, a handwheel fixing structure as described above, a bend, a spout, a pull-out hose, a gravity block, and a threaded pipe.

[0011] The faucet body includes a hollow, open-top and closed-bottom seat, a water guide seat inside the seat, a water outlet chamber, a hot water valve core chamber, and a cold water valve core chamber located on the upper part of the water guide seat. The water guide seat has a hot water inlet hole and a cold water inlet hole, which are connected to the center of the closed ends of the hot water valve core chamber and the cold water valve core chamber, respectively. The edges of the closed ends of the hot water valve core chamber and the cold water valve core chamber are connected to the water outlet chamber. The water guide seat has a water outlet hole.

[0012] The cold water valve core and the hot water valve core each include an axial inlet hole, a radial outlet hole, and an external threaded connection part located at the end.

[0013] The external threaded connection parts of the cold water valve core and the hot water valve core are respectively screwed into and sealed with the internal threaded annular seats of the cold water valve core cavity and the hot water valve core cavity. The cold water valve core and the hot water valve core are respectively equipped with handwheels; the upper end of the threaded tube is screwed into the internal thread of the lower end of the seat body; the elbow is connected to the upper opening of the seat body and rotates; the water outlet is connected to the pull hose, and the water outlet and the elbow are detachably connected; the other end of the pull hose is connected to the water outlet through the elbow and the seat body; the gravity block is set on the pull hose.

[0014] The pull-out double-handle kitchen faucet is characterized in that the axes of the cold water valve core cavity and the hot water valve core cavity have an acute angle with the axis of the seat body.

[0015] The pull-out double-handle kitchen faucet is characterized in that: the cold water inlet hole includes a longitudinal cold water internal thread hole and a cold water oblique hole, and the cold water oblique hole is connected to the cold water valve core cavity.

[0016] The hot water inlet hole includes a longitudinal hot water internal threaded hole and a hot water oblique hole, the hot water oblique hole being connected to the hot water valve core cavity;

[0017] The special feature of the pull-out double-handle kitchen faucet is that the included angle between the cold water valve core cavity and the hot water valve core cavity is less than 180 degrees and greater than 100 degrees.

[0018] The pull-out double-handle kitchen faucet is characterized in that: the opening on the seat body is provided with a rotating cavity, a stop cavity, and an internal thread cavity from top to bottom.

[0019] The bend is provided with a locking tongue hole;

[0020] It also includes bushings and rotating sleeves.

[0021] The bushing includes an external threaded seat at the lower end, an annular stop plate, and an annular rotating groove.

[0022] The rotating sleeve includes a longitudinal clearance groove that extends through the wall thickness and a locking tongue;

[0023] The outer threaded seat of the bushing is screwed into the inner threaded cavity, and the annular stop plate is fitted into the stop cavity; the rotating sleeve and the annular rotating groove are rotatably fitted, the bushing and the rotating sleeve are inserted into the bent pipe, and the locking tongue is fitted into the locking tongue hole.

[0024] The pull-out double-handle kitchen faucet is characterized by the presence of an anti-cavity groove within the annular rotating groove.

[0025] This utility model discloses a handwheel fixing structure. The handwheel employs a structure that facilitates easy assembly of the decorative cover and the connecting cavity; it can be directly inserted. The decorative cover can be disassembled using a rod-shaped tool through the vent / tool ​​hole, separating it from the connecting cavity without damaging the cover, allowing for reuse. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the present invention.

[0027] Figure 2 This is a perspective view of the present invention.

[0028] Figure 3 This is an exploded perspective view of this utility model.

[0029] Figure 4 This is a cross-sectional view of the second embodiment of this utility model.

[0030] Figure 5 yes Figure 4 A-A view.

[0031] Figure 6 This is a bottom view of the main body of the dragon head of this utility model.

[0032] Figure 7 yes Figure 6 B-B view.

[0033] Figure 8 This is a three-dimensional sectional view of the main body of the faucet of this utility model.

[0034] Figure 9 This is a three-dimensional view of the main body of the faucet of this utility model.

[0035] Figure 10 This is an exploded perspective view of this utility model.

[0036] Figure 11 yes Figure 10 A magnified view of a portion of the image.

[0037] Figure 12 This is a perspective view of the second embodiment of this utility model. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Example 1

[0041] like Figure 1 , Figure 2 As shown, a handwheel fixing structure includes a handwheel 23, a screw 24, a sealing ring 25, and a decorative cover 26.

[0042] The handwheel 23 is provided with a cavity 231, a splined connecting seat 232, a connecting cavity 233, a countersunk hole 234, and a connecting hole 235 and an exhaust / tool ​​hole 236 provided on the partition plate between the cavity 231 and the connecting cavity 233; the connecting hole 235 and the connecting seat 232 are connected; the exhaust / tool ​​hole 236 is one, two, or more than three.

[0043] The decorative cover 26 includes a cover plate portion 261 and a cylindrical portion 262, and the cylindrical portion 262 is provided with an annular groove 2621;

[0044] Screw 24 passes through connecting hole 235 and extends into connecting seat 232. Sealing ring 24 is provided in annular groove 2621. Cylindrical part 262 is inserted into connecting cavity 233. Cover plate part 261 and countersunk hole 234 are fitted together. Sealing ring 25 is tightly fitted with connecting cavity 233 to fix decorative cover 26. Vent and tool hole 236 is opposite to the suspended end of cylindrical part 262.

[0045] The diameter of the connecting seat 233 is smaller than the diameter of the connecting cavity 233. The exhaust and tool hole 236 is provided on the partition between the connecting seat 233 and the connecting cavity 233.

[0046] The decorative cover 26 is made of plastic or metal.

[0047] With this structure, the cylindrical part 262 is inserted into the connecting cavity 233. Due to the tight seal between the sealing ring 25 and the connecting cavity wall, the vent / tool ​​hole 236 releases air during the insertion of the cylindrical part. When the decorative cover 26 is removed, a rod-shaped tool extends out of the cavity 231 and aligns with the vent / tool ​​hole 236; then, it enters the vent / tool ​​hole 236 to push the decorative cover out. Disassembly does not damage the decorative cover, and the decorative cover can be reused.

[0048] When using this utility model, the splined head of the valve stem of the valve core is inserted into the connector 232, the screw 24 passes through the connector hole 235 and engages with the screw hole on the splined head, and then the cylindrical part 262 is inserted.

[0049] Example 2

[0050] like Figure 4 , Figure 5 As shown, a pull-out double-handle kitchen faucet includes a faucet body 1, a cold water valve core 21, a hot water valve core 22, a handwheel 23, a bend 3, a spout 41, a pull-out flexible hose 42, a gravity block 43, and a threaded hose 5.

[0051] like Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, the faucet body 1 includes a hollow, open-top and closed base 11, a water guide seat 12 disposed inside the base 11, a water outlet cavity 13 disposed on the upper part of the water guide seat 12, a hot water valve core cavity 15 and a cold water valve core cavity 14. The water guide seat 12 is provided with a hot water inlet hole 17 and a cold water inlet hole 16, which are connected to the center of the closed ends of the hot water valve core cavity 15 and the cold water valve core cavity 14 respectively. The edges of the closed ends of the hot water valve core cavity 15 and the cold water valve core cavity 14 are connected to the water outlet cavity 13. The water guide seat 12 is provided with a water outlet hole 121.

[0052] The cold water valve core 21 and the hot water valve core 22 respectively include an axial water inlet hole, a radial water outlet hole and an external threaded connection part 2A at the end; the cold water valve core 21 and the hot water valve core 22 have the same structure and function, which is a known technology and can be purchased on the market;

[0053] The external threaded connection 2A of the cold water valve core 21 and the hot water valve core 22 are respectively screwed into and sealed with the internal threaded annular seat 1A of the cold water valve core cavity 14 and the hot water valve core cavity 15. The internal threaded annular seat 1A and the bottom plate of the cold water valve core cavity 14 and the hot water valve core cavity 15 form a water guiding cavity. Handwheels 23 are respectively provided on the cold water valve core 21 and the hot water valve core 22. The upper end of the threaded tube 5 is screwed into the internal thread of the lower end of the seat body 11. The bent tube 3 is connected to the upper opening of the seat body 11 and rotates. The water outlet 41 is connected to the pull-out hose 42. The water outlet 41 and the bent tube 3 are detachably connected. The other end of the pull-out hose 42 is connected to the water outlet 121 through the bent tube 3 and the seat body 11. The gravity block 43 is provided on the pull-out hose 42. With this structure, cold water, hot water and cold-hot mixed water can be realized; (1) By operating the handwheel on the cold water valve core, cold water is realized separately. The cold water enters the outlet chamber 13 through the cold water inlet hole 16, the cold water valve core cavity, the cold water valve core 21, and the cold water valve core cavity; and then flows out through the outlet hole 121, the pull hose, and the outlet head to supply cold water; (2) By operating the handwheel on the hot water valve core, hot water is realized separately. The hot water enters the outlet chamber 13 through the hot water inlet hole 17, the hot water valve core cavity, the hot water valve core 22, and the hot water valve core cavity; and then flows out through the outlet hole 121, the pull hose, and the outlet head to supply hot water; (3) Cold water and hot water are mixed in the outlet chamber to realize cold-hot mixed water.

[0054] When in use, the water outlet and the bend can rotate together, or the water outlet and the bend can be disassembled and moved.

[0055] As a further improvement to this utility model: such as Figure 4 , Figure 9 As shown, the axes of the cold water valve core cavity 14 and the hot water valve core cavity 15 form an acute angle α with the axis of the seat 11. This structure is compact and easy to operate.

[0056] As a further improvement to this utility model: such as Figure 4 , Figure 7 As shown, the cold water inlet hole 16 includes a longitudinal cold water internal thread hole 161 and a cold water oblique hole 162, and the cold water oblique hole 162 is connected to the cold water valve core cavity 14.

[0057] The hot water inlet 17 includes a longitudinal hot water internal threaded hole 171 and a hot water oblique hole 172, and the hot water oblique hole 172 is connected to the hot water valve core cavity 15.

[0058] As a further improvement to this utility model: such as Figure 6 As shown, the included angle β between the cold water valve core cavity 14 and the hot water valve core cavity 15 is less than 180 degrees and greater than 100 degrees.

[0059] As a further improvement of this utility model: the upper opening of the seat 11 is provided with a rotating cavity 111, a stop cavity 112 and an internal thread cavity 113 from top to bottom.

[0060] The bent pipe 3 is provided with a locking tongue hole 31;

[0061] It also includes bushing 6 and rotating sleeve 7.

[0062] The bushing 6 includes an external threaded seat 61 at the lower end, an annular stop plate 62, and an annular rotating groove 63.

[0063] The rotating sleeve 7 includes a longitudinal clearance groove 71 that extends through the wall thickness and a locking tongue 72. The rotating sleeve is made of plastic material.

[0064] The outer threaded seat 61 of the bushing 6 is screwed into the inner threaded cavity 113, and the annular stop plate 62 is fitted into the stop cavity 112; the rotating sleeve 7 and the annular rotating groove 63 are rotatably engaged, the bushing 6 and the rotating sleeve 7 are inserted into the bent tube 3, and the locking tongue 72 is fitted into the locking tongue hole 31; the lower end of the bent tube 3 extends into the rotating cavity 111.

[0065] The annular rotating groove 63 is provided with an anti-air groove 631. This design reduces the friction when the rotating sleeve 7 rotates.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A handwheel fixing structure, characterized in that: Includes handwheel, screws, sealing rings, and decorative cover. The handwheel is equipped with a cavity, a splined connecting seat, a connecting cavity, a countersunk hole, a connecting hole on the partition, and an exhaust / tool ​​hole. The decorative cover includes a cover plate portion and a cylindrical portion, with an annular groove on the cylindrical portion; The screw passes through the connecting hole and extends into the connecting seat. The sealing ring is located in the annular groove. The cylindrical part is inserted into the connecting cavity. The cover plate and the countersunk hole fit together. The sealing ring and the connecting cavity fit tightly to fix the decorative cover. The vent and tool hole is opposite to the suspended end of the cylindrical part.

2. The handwheel fixing structure according to claim 1, characterized in that: The diameter of the connector is smaller than the diameter of the connecting cavity.

3. A handwheel fixing structure according to claim 1 or 2, characterized in that: The decorative cover is made of plastic or metal.

4. A pull-out double-handle kitchen faucet, characterized in that: Includes a faucet body, a cold water valve core, a hot water valve core, a handwheel fixing structure as described in any one of claims 1-3, a bend, a water outlet, a pull-out hose, a gravity block, and a threaded pipe. The faucet body includes a hollow, open-top and closed-bottom seat, a water guide seat inside the seat, a water outlet chamber, a hot water valve core chamber, and a cold water valve core chamber located on the upper part of the water guide seat. The water guide seat has a hot water inlet hole and a cold water inlet hole, which are connected to the center of the closed ends of the hot water valve core chamber and the cold water valve core chamber, respectively. The edges of the closed ends of the hot water valve core chamber and the cold water valve core chamber are connected to the water outlet chamber. The water guide seat has a water outlet hole. The cold water valve core and the hot water valve core each include an axial inlet hole, a radial outlet hole, and an external threaded connection part located at the end. The external threaded connection parts of the cold water valve core and the hot water valve core are respectively screwed into and sealed with the internal threaded annular seats of the cold water valve core cavity and the hot water valve core cavity. The cold water valve core and the hot water valve core are respectively equipped with handwheels; the upper end of the threaded tube is screwed into the internal thread of the lower end of the seat body; the elbow is connected to the upper opening of the seat body and rotates; the water outlet is connected to the pull hose; the water outlet and the elbow are detachably connected; the other end of the pull hose is connected to the water outlet hole through the elbow and the seat body. The gravity block is located on the pull-out flexible tube.

5. A pull-out double-handle kitchen faucet according to claim 4, characterized in that: The axes of the cold water valve core cavity and the hot water valve core cavity have an acute angle with the axis of the seat.

6. A pull-out double-handle kitchen faucet according to claim 5, characterized in that: The cold water inlet hole includes a longitudinal cold water internal threaded hole and a cold water oblique hole, and the cold water oblique hole is connected to the cold water valve core cavity. The hot water inlet includes a longitudinal hot water internal threaded hole and a hot water oblique hole, with the hot water oblique hole communicating with the hot water valve core cavity.

7. A pull-out double-handle kitchen faucet according to claim 5, characterized in that: The included angle between the cold water valve core cavity and the hot water valve core cavity is less than 180 degrees and greater than 100 degrees.

8. A pull-out double-handle kitchen faucet according to claim 4, characterized in that: The seat body has a rotating cavity, a stop cavity, and an internal thread cavity arranged from top to bottom on its opening. The bend is provided with a locking tongue hole; It also includes bushings and rotating sleeves. The bushing includes an external threaded seat at the lower end, an annular stop plate, and an annular rotating groove. The rotating sleeve includes a longitudinal clearance groove that extends through the wall thickness and a locking tongue; The outer threaded seat of the bushing is screwed into the inner threaded cavity, and the annular stop plate is fitted into the stop cavity; the rotating sleeve and the annular rotating groove are rotatably fitted, the bushing and the rotating sleeve are inserted into the bent pipe, and the locking tongue is fitted into the locking tongue hole.

9. A pull-out double-handle kitchen faucet according to claim 8, characterized in that: The annular rotating groove is equipped with a clearance groove.

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