Password faucet

Abstract

The utility model provides a password faucet and belongs to the technical field of faucets. The problem that water resources are not convenient to use while being stolen is solved. The roller coded lock comprises a body, a valve element, an operating handle and a roller coded lock cylinder, the valve element comprises a shell in threaded connection with the interior of the body and a valve rod rotationally arranged in the shell, a mounting cavity is formed in the bottom of one end of the operating handle, and the upper end of the valve rod is located in the mounting cavity and fixedly connected with the operating handle; the upper end of the shell is provided with an annular matching part, the matching part is located in the mounting cavity, the side portion of the matching part is provided with an inserting groove, the rolling wheel coded lock cylinder is located in the handle-shaped part of the operating handle, and when the valve element is in the state of closing the coded faucet, the locking piece can stretch into the mounting cavity in the direction perpendicular to the valve rod and is inserted into the inserting groove; and when the roller coded lock cylinder is in a locked state, the locking piece is limited in the direction of being separated from the slot. The device is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of faucets and relates to a password faucet. Background Art

[0002] A faucet is a switch used to control the flow of water and has the effect of saving water. Although existing faucets have different appearances, their structures are basically the same. They basically include a main body, a ceramic quick-opening valve core, and a handle. The ceramic quick-opening valve core includes a shell threadedly connected to the main body, a valve stem, a ceramic movable valve disc, and a ceramic static valve disc all disposed within the shell. The ceramic static valve disc is fixed to the shell, and the ceramic movable valve disc can rotate relative to the shell along the ceramic static valve disc. The valve stem is connected to the ceramic movable valve disc, and the upper end of the valve stem extends out of the main body and is connected to the handle, just like the water-saving faucet disclosed in patent application number 201020300359.8 (the valve core seat, valve core, and valve stem used in the faucet are the ceramic quick-opening valve core).

[0003] Often, faucets are installed outdoors for convenience, but this creates the risk of water being stolen. Therefore, outdoor faucets are required to have anti-theft features. Currently, a common method is to remove the manual handle on the faucet and install a mechanical lock. When water is needed, the user inserts a key into the mechanical lock to unlock it. While this effectively prevents water from being stolen, users need to carry the key with them, leading to significant inconvenience in use. Additionally, some methods employ mechanical combination locks on faucets to prevent theft, but this structure requires significant modifications to the faucet itself. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems existing in the prior art and propose a password faucet, which solves the problem of inconvenience in use while preventing water resources from being stolen.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A password faucet includes a main body, a valve core, an operating handle and a roller password lock core. The valve core includes a shell threadedly connected to the main body and a valve stem rotatably arranged in the shell. The bottom of one end of the operating handle has a mounting cavity, the upper end of the valve stem is located in the mounting cavity and fixedly connected to the operating handle, and the roller password lock core includes a locking piece, which is characterized in that the upper end of the shell has an annular mating portion, the mating portion is located in the mounting cavity, and the side of the mating portion has a slot. The roller password lock core is located in the handle-shaped part of the operating handle. When the valve core is in a state of closing the password faucet, the locking piece can extend into the mounting cavity and be inserted into the slot in a direction perpendicular to the valve stem, and when the roller password lock core is in a locked state, the locking piece is limited in the direction of escaping from the slot.

[0007] When the password faucet is in the closed state, the operating handle is positioned relative to the locking plate and the slot. After the locking plate is inserted into the slot, the roller password lock cylinder is operated to the locked state to limit the position of the locking plate, thereby fixing the operating handle and the housing circumferentially together. The housing is threadedly connected to the main body. This is equivalent to fixing the operating handle and the faucet together, playing a role in preventing others from stealing water resources. The password faucet directly integrates the roller password lock cylinder into the handle-shaped portion of the operating handle, and a circular mating portion is provided at the upper end of the housing of the valve core. The mating portion is located in the mounting cavity of the operating handle and a slot is provided on the side of the mating portion. When the faucet is in the closed state, the locking plate of the roller password lock cylinder can be inserted into the slot to fix the operating handle and the housing to achieve mutual locking of the operating handle and the main body. This allows users to operate without a key, thereby achieving anti-theft and greatly improving user convenience.

[0008] Furthermore, because the locking mechanism of this password faucet is located on the valve core housing, which, like the housing of a traditional quick-open valve core, is directly threaded into the main body, and the operating handle is simply connected to the valve stem, the main body of this password faucet is identical to that of a traditional faucet, allowing it to be used directly. This unchanged main structure makes production more convenient for businesses, allowing them to utilize traditional production processes and equipment without the need for designing additional tooling or molds.

[0009] In the above-mentioned password faucet, an assembly cavity is provided in the handle-shaped part of the operating handle, the roller password lock core is located in the assembly cavity, and a clearance groove is provided in the operating handle to connect the assembly cavity with the installation cavity. The locking piece has a locking portion whose shape matches the slot, and the locking portion passes through the clearance groove.

[0010] The assembly cavity allows the combination roller lock cylinder to be integrated into the handle portion of the operating handle. The locking portion of the locking plate, whose shape matches the slot, ensures that the combination roller lock cylinder can secure the operating handle and the valve core housing together by inserting the locking plate into the slot.

[0011] In the above-mentioned password faucet, the bottom of the handle-shaped portion of the operating handle has a plurality of drainage holes communicated with the assembly cavity.

[0012] This password faucet is used outdoors. When rainwater enters the operating handle, the drainage hole can be used to drain the leaked rainwater to prevent rainwater from accumulating in the assembly cavity and eventually corroding the components.

[0013] In the above-mentioned password faucet, a socket portion is protruding from the bottom of one end of the operating handle connected to the valve stem, the installation cavity passes through the lower end surface of the socket portion, the socket portion cover is arranged outside the upper end of the shell, and a connecting portion is integrally fixedly connected at the center position of the bottom wall of the installation cavity, and the upper end of the valve stem is connected to the connecting portion.

[0014] By setting the sleeve part, the part of the outer shell of the entire valve core exposed outside the main body can be covered, so that only the existence of the operating handle can be seen from the outside, ensuring that it will not be violently damaged by others.

[0015] In the above-mentioned password faucet, the bottom of the connecting part has a connecting hole, the upper end of the valve stem is located in the connecting hole and the two are circumferentially fixed, the top of one end where the operating handle is connected to the valve stem has a concave cavity connected to the connecting hole, the valve stem and the operating handle are connected by the rod passing through the concave cavity and being threadedly connected to the screw in the upper end of the valve stem, and a protective cover is provided in the concave cavity.

[0016] After the valve stem and the operating handle are fixedly connected together with screws, a fixed protective cover is installed in the concave cavity. The screws are shielded by the protective cover, so that others cannot directly remove the handle with the integrated roller combination lock cylinder from the valve stem by removing the screws.

[0017] In the above-mentioned password faucet, an arc-shaped limiting notch is provided on the outer side of the upper end portion of the mating portion, and a limiting block is integrally fixedly connected to the bottom wall of the installation cavity, and the limiting block is located in the limiting notch.

[0018] The rotation angle of the operating handle can be directly limited by the cooperation of the limiting block in the limiting notch, so there is no need to set up another limiting structure.

[0019] Compared with the prior art, this password faucet directly integrates a roller password lock core in the handle-shaped part of the operating handle, and provides a circular ring-shaped matching portion on the upper end of the valve core shell. The matching portion is located in the installation cavity of the operating handle and a slot is provided on the side of the matching portion. In this way, when the faucet is in the closed state, the locking piece of the roller password lock core can be inserted into the slot to fix the operating handle and the shell to achieve mutual locking of the operating handle and the main body, thereby allowing users to operate without a key, thereby achieving anti-theft while greatly improving user convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the password faucet in the closed state.

[0021] Figure 2 It is a cross-sectional view of the password faucet in the closed state.

[0022] Figure 3 This is a decomposition diagram of this password faucet.

[0023] Figure 4 This is a schematic diagram of the mounting cavity in the operating handle.

[0024] Figure 5 It is a schematic diagram of the cooperation between the locking piece and the outer shell of the valve core.

[0025] In the figure, 1. main body; 1a. water inlet channel; 1b. water outlet channel; 1c. water hole; 2. valve core; 2a. shell; 2a1. mating part; 2a11. slot; 2a12. limiting notch; 2b. valve stem; 2c. ceramic moving valve disc; 2d. ceramic static valve disc; 3. operating handle; 3a. sleeve part; 3b. installation cavity; 3c. connecting part; 3c1. connecting hole; 3d. concave cavity; 3e. limiting block; 3f. assembly cavity; 3g. drainage hole; 3h. lower half shell; 3i. upper half shell; 4. roller combination lock core; 5. locking plate; 5a. locking part; 6. wheel axle; 6a. shoulder; 7. code change roller; 8. digital roller; 9. reset spring; 10. screw; 11. protective cover. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figure 1 、 Figure 2 and Figure 3As shown, the password faucet includes a main body 1, a valve core 2, an operating handle 3, and a roller password lock core 4. The main body 1 has a water inlet channel 1a, a water outlet channel 1b, and a water hole 1c connecting the water inlet channel 1a and the water outlet channel 1b. The valve core 2 is disposed in the main body 1 and can control the connection or isolation between the water outlet channel 1b and the water hole 1c. Specifically, the valve core 2 includes a housing 2a threadedly connected to the main body 1, a valve stem 2b rotatably disposed in the housing 2a, a ceramic movable valve disc 2c axially fixed to the lower end of the valve stem 2b, and a ceramic static valve disc 2d abutting the bottom of the ceramic movable valve disc 2c. How the valve core 2 controls the connection or isolation between the water outlet channel 1b and the water hole 1c is a prior art, as described in detail in the previously disclosed patent application No. 201020300359.8, which discloses a water-saving faucet and will not be repeated here. The upper end of the valve stem 2 b extends out of the main body 1 and is fixedly connected to one end of the operating handle 3 . The roller combination lock core 4 is located in the handle-shaped portion of the operating handle 3 .

[0028] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, specifically, the upper end of the housing 2a is located outside the main body 1. The upper end of the housing 2a has a circular mating portion 2a1. The valve stem 2b is located inside the mating portion 2a1. The upper end of the mating portion 2a1 has a slot 2a11 outside. The roller combination lock cylinder 4 includes a locking plate 5. When the valve core 2 is in the closed state, the locking plate 5 can be inserted into the slot 2a11 in a direction perpendicular to the valve stem 2b. When the roller combination lock cylinder 4 is in the locked state, the locking plate 5 is restricted in the direction of being removed from the slot 2a11. In this embodiment, the roller combination lock cylinder 4 also includes an axle 6, code change rollers 7 sequentially mounted on the axle 6, and number rollers 8 mounted outside each code change roller 7. Each number roller 8 is partially exposed outside the upper surface of the operating handle 3. The end of the axle 6, near the valve stem 2b, has a shoulder 6a. This end of the axle 6 is sleeved with a return spring 9. The two ends of the return spring 9 respectively abut against the shoulder 6a and the code-changing roller 7 closest to the shoulder 6a. Each code-changing roller 7 is fitted with a recessed, convex-concave plug-in structure between the number rollers 8 it fits within. Each code-changing roller 7 has an unlocking notch on its edge closest to the shoulder 6a. Each number roller 8 passes through a locking plate 5. The locking plate 5 has a pointed portion along the axial direction of the axle 6 corresponding to each unlocking notch. The end of the axle 6 with the shoulder 6a abuts against the locking plate 5, facing toward the valve stem 2b. The roller combination lock cylinder 4 is conventional, and its operating principle can be compared to that of a conventional mechanical combination lock.

[0029] Furthermore, if Figure 2 、 Figure 3 and Figure 4As shown, the end of the operating handle 3 that connects to the valve stem 2b has a protruding socket portion 3a. This end of the operating handle 3 has a mounting cavity 3b that extends through the lower end surface of the socket portion 3a. The upper end of the housing 2a is located within the mounting cavity 3b. A connecting portion 3c is integrally fixedly connected to the center of the bottom wall of the mounting cavity 3b. The upper end of the valve stem 2b is connected to the connecting portion 3c. Specifically, the bottom of the connecting portion 3c has a connecting hole 3c1. The upper end of the valve stem 2b is located within the connecting hole 3c1, and the two are circumferentially fixed. The top of the end of the operating handle 3 that connects to the valve stem 2b has a recessed cavity 3d that communicates with the connecting hole 3c1. The valve stem 2b and the operating handle 3 are connected by a screw 10 that passes through the recessed cavity 3d and is threaded into the upper end of the valve stem 2b. A protective cover 11 is provided within the recessed cavity 3d. The outer side of the upper end of the mating portion 2a1 is also provided with an arc-shaped limiting notch 2a12 with a 90° arc. The bottom wall of the mounting cavity 3b is also integrally connected to a limiting block 3e, which is located within the limiting notch 2a12. The limiting block 3e engages with the limiting notch 2a12 to directly limit the rotation angle of the operating handle 3, eliminating the need for a separate limiting structure. The handle-like portion of the operating handle 3 includes an assembly cavity 3f, within which the roller combination lock cylinder 4 is located. The operating handle 3 includes a clearance groove connecting the assembly cavity 3f with the mounting cavity 3b. The locking piece 5 includes a locking portion 5a shaped to match the slot 2a11, which extends through the clearance groove. The bottom of the handle-like portion of the operating handle 3 has several drainage holes 3g connected to the assembly cavity 3f. In this embodiment, the operating handle 3 comprises a lower half shell 3h and an upper half shell 3i that are interlocked and fixed.

[0030] When the password faucet is closed, the operating handle 3 is positioned so that the locking piece 5 is opposite the slot 2a11. The locking piece 5 is inserted into the slot 2a11 under the action of the return spring 9. At this time, the position of the locking piece 5 can be restricted by turning the number roller 8, thereby fixing the operating handle 3 to the housing 2a circumferentially. The housing 2a is threadedly connected to the main body 1. This is equivalent to fixing the operating handle 3 to the faucet, which plays a role in preventing others from stealing water resources. When the user needs water, they only need to turn the number roller 8 to the correct number to release the position restriction of the locking piece 5. At this time, although the locking piece 5 is still inserted into the slot 2a11, the locking piece 5 is in a retractable state in the direction away from the slot 2a11. When the user pulls the operating handle 3, the groove wall of the slot 2a11 will apply a thrust to the locking piece 5 to make it retreat out of the slot 2a11, thereby driving the valve stem 2b to rotate and open the password faucet.

[0031] This password faucet has a roller password lock core 4 directly integrated in the handle-shaped part of the operating handle 3, and a circular ring-shaped matching part 2a1 is provided on the upper end of the valve core 2 shell 2a, and a slot 2a11 is provided on the side of the matching part 2a1. When the faucet is in the closed state, the locking piece 5 is inserted into the slot 2a11 to fix the operating handle 3 and the shell 2a to achieve mutual locking of the operating handle 3 and the main body 1, thereby allowing the user to operate without a key, thereby achieving anti-theft and greatly improving user convenience.

[0032] Furthermore, because the locking position of this password faucet is on the outer shell 2a of the valve core 2, the outer shell 2a of the valve core 2 is directly threaded into the main body 1, just like the outer shell of a traditional quick-opening valve core, and the operating handle 3 is simply connected to the valve stem 2b, the main body 1 of this password faucet has the same structure as a traditional faucet, and the traditional faucet main body can be used directly. Since the structure of the main body 1 has not changed, it is also more convenient for enterprises to produce it directly, and they can directly use traditional production processes and equipment without the need to design additional tooling or molds.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A password faucet, comprising a main body (1), a valve core (2), an operating handle (3) and a roller password lock core (4), wherein the valve core (2) comprises a shell (2a) threadedly connected to the main body (1) and a valve stem (2b) rotatably arranged in the shell (2a), a bottom end of one end of the operating handle (3) having a mounting cavity (3b), an upper end of the valve stem (2b) located in the mounting cavity (3b) and fixedly connected to the operating handle (3), and the roller password lock core (4) comprises a locking piece (5), characterized in that: The upper end of the housing (2a) has an annular mating portion (2a1), which is located in the mounting cavity (3b). The side of the mating portion (2a1) has a slot (2a11). The roller code lock core (4) is located in the handle-shaped portion of the operating handle (3). When the valve core (2) is in a state of closing the code faucet, the locking piece (5) can extend into the mounting cavity (3b) in a direction perpendicular to the valve stem (2b) and be inserted into the slot (2a11). When the roller code lock core (4) is in a locked state, the locking piece (5) is limited in a direction of being out of the slot (2a11).

2. The password faucet according to claim 1, characterized in that: An assembly cavity (3f) is provided in the handle-shaped portion of the operating handle (3), the roller combination lock core (4) is located in the assembly cavity (3f), a clearance groove is provided in the operating handle (3) for connecting the assembly cavity (3f) with the installation cavity (3b), and the locking piece (5) has a locking portion (5a) whose shape matches the slot (2a11), and the locking portion (5a) passes through the clearance groove.

3. The password faucet according to claim 2, characterized in that: The bottom of the handle-shaped portion of the operating handle (3) is provided with a plurality of drainage holes (3g) that are in communication with the assembly cavity (3f).

4. The password faucet according to claim 1, 2 or 3, characterized in that: The bottom of one end of the operating handle (3) connected to the valve stem (2b) is protruded with a sleeve portion (3a), the installation cavity (3b) passes through the lower end surface of the sleeve portion (3a), the sleeve portion (3a) is covered outside the upper end of the shell (2a), and a connecting portion (3c) is integrally fixed at the center position of the bottom wall of the installation cavity (3b), and the upper end of the valve stem (2b) is connected to the connecting portion (3c).

5. The password faucet according to claim 4, characterized in that: The bottom of the connecting portion (3c) has a connecting hole (3c1), the upper end of the valve stem (2b) is located in the connecting hole (3c1) and the two are circumferentially fixed, the top of one end of the operating handle (3) connected to the valve stem (2b) has a concave cavity (3d) connected to the connecting hole (3c1), the valve stem (2b) and the operating handle (3) are connected by a screw (10) in the upper end of the valve stem (2b) through the rod portion passing through the concave cavity (3d) and being threadedly connected to the concave cavity (3d), and a protective cover (11) is provided in the concave cavity (3d).

6. The password faucet according to claim 1, 2 or 3, characterized in that: An arc-shaped limiting notch (2a12) is further provided on the outer side of the upper end portion of the matching portion (2a1), and a limiting block (3e) is integrally fixedly connected to the bottom wall of the installation cavity (3b), and the limiting block (3e) is located in the limiting notch (2a12).

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