Anti-theft faucet with coded lock
By designing a combination lock component on the faucet, and utilizing a combination structure of lock ring, lock bar and push body, password input is achieved, solving the problem of cumbersome use of traditional mechanical locks and improving convenience and anti-theft performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-14
AI Technical Summary
The traditional mechanical locks on existing outdoor private water taps are cumbersome to use and the keys are easy to lose, causing inconvenience.
The faucet uses a combination lock assembly, which uses a combination of a rotating locking ring and a locking bar to input a password and lock or unlock the faucet. The combination lock assembly includes a locking ring, locking bar, push body, locking disc and arc-shaped latch, and uses a pin connection structure and spring to realize password verification.
No key is needed, which improves ease of use, enhances anti-theft features, and simplifies the process of turning the water on and off.
Smart Images

Figure CN224120750U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of faucet technology and relates to an anti-theft faucet with a combination lock. Background Technology
[0002] To prevent unauthorized use, outdoor private faucets are usually equipped with keys and mechanical locks. When water is needed, the key must be inserted into the mechanical lock to unlock it before the faucet can be turned on or off.
[0003] Because a key is a small, individual object that is easy to lose, and with the progress of modern society, various door locks and car locks have been replaced by convenient channels such as fingerprint keys, facial recognition keys, password keys, and mobile phone Bluetooth keys, more and more people are unwilling to wear mechanical keys.
[0004] Therefore, it is also very necessary to develop a combination lock that does not require carrying a key to meet the usage needs of outdoor private faucets. Summary of the Invention
[0005] The purpose of this invention is to address the problem of the cumbersome method of opening existing outdoor private faucets using traditional mechanical locks, and to propose an anti-theft faucet with a combination lock.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] An anti-theft faucet with a combination lock is characterized by comprising: a faucet body, a water valve disposed on the water passage of the faucet body, a handle that is linked to the water valve and used to open and close the valve inside the water valve, the handle having a cavity for housing the combination lock assembly, the water valve having an arc-shaped latch, and the combination lock assembly including an arc-shaped latch tongue disposed in the arc-shaped latch and constrained by the arc-shaped latch when the handle and the water valve are locked.
[0008] In the aforementioned anti-theft faucet with a combination lock, the combination lock assembly further includes a locking ring rotatably disposed within a cavity, a locking rod rotatably and telescopically disposed within a cavity, and a pusher body telescopically disposed within a cavity. A locking disc is fixedly sleeved on the locking rod. The inner ring of the locking ring has an outer ring groove and a ring groove matching the size of the locking disc. The outer ring groove and the ring groove are connected in a stepped manner. The locking disc is embedded in the ring groove. A pin connection structure is provided between the locking disc and the ring groove so that the two can rotate synchronously. A retraction hole is provided on the locking disc. An arc-shaped latch is fixed to the pusher body. A return spring is fixed between the tail end of the pusher body and the handle. The pusher body includes a horizontal bar and a vertical bar. The horizontal bar is arranged parallel to the locking rod disc, and the vertical bar is arranged vertically on the horizontal bar. A lock body is provided on the vertical bar. When the combination lock assembly is locked, the lock body is not aligned with the retraction hole but is close to the locking disc. When the combination lock assembly is unlocked, the lock body is aligned with the retraction hole.
[0009] In the aforementioned anti-theft faucet with a combination lock, the locking rod is composed of multiple sub-rods that can rotate relative to each other but will not detach from each other. There are multiple sets of locking rings, locking discs, vertical rods, and lock bodies, and each locking disc is independently fixed on a sub-rod.
[0010] In the aforementioned anti-theft faucet with a combination lock, the front end of the handle has a hole through which a needle rod can be inserted to push the locking rod and disengage the locking disc from the annular groove. The number of pin connection structures between the locking disc and the annular groove is the same as the number of combinations. These pin connection structures are distributed in a centrally symmetrical manner. An adjusting spring is fixed between the side of the locking rod facing away from the hole and the handle. When the needle rod does not push the locking rod, the adjusting spring causes the locking rod to push outward and the locking disc to embed into the annular groove.
[0011] In the aforementioned anti-theft faucet with a combination lock, the outer ring of the lock ring is marked with a combination of 10 Arabic numerals from 0 to 9.
[0012] Compared with existing technologies, this anti-theft faucet uses a combination lock to achieve the anti-theft function, eliminating the need to carry a key and making it more convenient. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the water valve and handle of this utility model;
[0014] Figure 2 This is a schematic diagram of the disassembled handle of this utility model;
[0015] Figure 3 This is a cross-sectional structural diagram of the combination lock component of this utility model;
[0016] In the diagram, 1. Water valve; 2. Handle; 3. Arc-shaped latch; 4. Arc-shaped tongue; 5. Locking ring; 6. Locking rod; 7. Push body; 8. Locking disc; 9. Retraction hole; 10. Lock body; 11. Return spring; 12. Hole; 13. Adjusting spring; 14. Valve. Detailed Implementation
[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0018] like Figures 1-3As shown, this anti-theft faucet includes a faucet body, a water valve 1 set on the water flow path of the faucet body, and a handle 2 that is linked to the water valve 1 and used to open and close the valve 14. The handle 2 has a cavity for housing a combination lock assembly. The connection between the water valve 1 and the handle 2 is provided with an arc-shaped latch 3. The combination lock assembly includes an arc-shaped latch 4, which is set in the arc-shaped latch 3. When the combination lock assembly is locked, the arc-shaped latch 4 is constrained by the arc-shaped latch 3. When the combination lock assembly is unlocked, the arc-shaped latch 4 is no longer constrained by the arc-shaped latch 3.
[0019] When the combination lock assembly is locked: the arc-shaped latch 4 is tightly locked inside the arc-shaped latch 3, causing the arc-shaped latch 4 to be constrained by the arc-shaped latch 3 and unable to move. The arc-shaped latch 4 is set inside the handle 2, so the handle 2 is also constrained by the water valve 1, thus realizing the locking function.
[0020] When the combination lock component is unlocked: Although the arc-shaped latch 4 is locked in the arc-shaped latch 3, it is not constrained by it. The handle 2 can rotate relative to the water valve 1. During the rotation of the handle 2, the arc-shaped latch 4 rotates along with it. Because the outer edges of the arc-shaped latch 4 and the arc-shaped latch 3 are arc-shaped, the arc-shaped latch 4 will push and retract under the guidance of the arc shape during the rotation of the arc-shaped latch 3.
[0021] The combination lock assembly also includes a lock ring 5 rotatably disposed in the cavity, a lock rod 6 telescopically disposed in the cavity, and a pusher 7 telescopically disposed in the cavity. A lock disc 8 is fixedly sleeved on the lock rod 6. The inner ring of the lock ring 5 has an outer ring groove and a ring groove that matches the size of the lock disc 8. The outer ring groove and the ring groove are connected in a stepped shape. The lock disc 8 is embedded in the ring groove. A pin connection structure is provided between the lock disc 8 and the ring groove so that the two can rotate synchronously. A retraction hole 9 is provided on the lock disc 8. An arc-shaped latch 4 is fixed to the pusher 7. A return spring 11 is fixed between the tail end of the pusher 7 and the handle 2. The pusher 7 includes a horizontal bar and a vertical bar. The horizontal bar is arranged parallel to the lock rod 6, and the vertical bar is arranged vertically on the horizontal bar. A lock body 10 is provided on the vertical bar. When the combination lock assembly is locked, the lock body 10 is not aligned with the retraction hole 9 but is close to the lock disc 8. When the combination lock assembly is unlocked, the lock body 10 is aligned with the retraction hole 9.
[0022] Compared to handle 2: push body 7 can only extend and retract, lock bar 6 can extend and retract (the extension and retraction function is for adjusting the password, as mentioned later) or rotate, and lock ring 5 can only rotate.
[0023] The process of rotating the locking ring 5 is how the combination lock adjusts the combination. After rotating the locking ring 5, due to the pin connection structure, the rotation of the locking ring 5 will drive the locking disc 8 to rotate synchronously. During the rotation of the locking disc 8, the alignment of the release hole 9 with the lock body 10 is adjusted. If the combination is incorrect and the release hole 9 is not aligned with the lock body 10, then the lock body 10 will be blocked by the locking disc 8, the pusher 7 cannot be pushed backward, and the arc-shaped latch 4 will be constrained by the arc-shaped latch 3. If the combination is correct and the release hole 9 is aligned with the lock body 10, then the lock body 10 can be retracted into the release hole 9. After the arc-shaped latch 4 rotates relative to the arc-shaped latch 3, the arc-shaped latch 4 will retract along with the pusher 7. At the same time, the return spring 11 at the tail of the pusher 7 will be squeezed. When the handle 2 returns to its original position, the return spring 11 will push the arc-shaped latch 4 back into the arc-shaped latch 3.
[0024] The locking rod 6 is composed of multiple sub-rods that can rotate around each other but will not detach from each other. The locking ring 5, locking disc 8, vertical rod, and locking body 10 are in multiple sets, and each locking disc 8 is independently fixed on the sub-rod.
[0025] Because the combination lock usually has more than one combination, otherwise it would be very easy to crack, the lock ring 5, lock disc 8, vertical bar, and lock body 10 should ideally have at least 3 sets. The combination can achieve better security. If any lock ring 5 is not adjusted to the correct position of the combination, the retraction hole 9 of the lock disc 8 at that position will not be aligned with the lock body 10 at that position, so it cannot be unlocked.
[0026] The handle 2 has a hole 12 at the front end, through which the needle bar can be inserted to push the locking bar 6 and disengage the locking disc 8 on the locking bar 6 from the annular groove. The number of pin connection structures between the locking disc 8 and the annular groove is the same as the number of passwords. These pin connection structures are distributed in a centrally symmetrical manner. An adjusting spring 13 is fixed between the side of the locking bar 6 facing away from the hole 12 and the handle 2. When the needle bar does not push the locking bar 6, the adjusting spring 13 pushes the locking bar 6 outward and causes the locking disc 8 to be embedded in the annular groove.
[0027] The telescopic movement of locking lever 6 demonstrates its functionality here:
[0028] When the password needs to be adjusted manually, first set the correct password so that the release hole 9 is aligned with the lock body 10. Insert the needle bar through the hole 12. After the needle bar pushes the lock rod 6, the lock disc 8 on the lock rod 6 disengages from the ring groove. At the same time, because the release hole 9 and the lock body 10 are already aligned, the lock body 10 will not block the lock disc 8 during this process. Then rotate the lock ring 5 to the position of the password. After releasing and withdrawing the needle bar, adjust the spring 13 to disengage the lock rod 6. The lock disc 8 is pushed back into the ring groove. Because the pin connection structure is centrally symmetrical, the pin connection structure can also be properly matched after the position is adjusted. During this process, all release holes 9 and the lock body 10 are always aligned, which is the position of the new password.
[0029] The outer ring of the lock ring 5 is marked with a password, consisting of 10 Arabic numerals from 0 to 9.
[0030] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".
[0031] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A burglarproof faucet with a combination lock, characterized in that: The device includes a faucet body, a water valve located in the water flow path of the faucet body, a handle that is linked to the water valve and used to open and close the valve inside the water valve, a cavity inside the handle for housing a combination lock assembly, an arc-shaped latch on the water valve, and an arc-shaped latch tongue located inside the arc-shaped latch and constrained by the arc-shaped latch when the handle and the water valve are locked.
2. The anti-theft faucet with a combination lock according to claim 1, characterized in that: The combination lock assembly also includes a lock ring rotatably disposed in the cavity, a lock rod telescopically disposed in the cavity, and a pusher telescopically disposed in the cavity. A lock disc is fixedly sleeved on the lock rod. The inner ring of the lock ring has an outer ring groove and a ring groove matching the size of the lock disc. The lock disc is embedded in the ring groove. A pin connection structure is provided between the lock disc and the ring groove so that the two can rotate synchronously.
3. The anti-theft faucet with a combination lock according to claim 2, characterized in that: The lock disc has a retraction hole, and the arc-shaped latch is fixed to the push body. A return spring is fixed between the tail end of the push body and the handle. The push body includes a horizontal bar and a vertical bar. The horizontal bar is arranged parallel to the lock bar disc, and the vertical bar is arranged vertically on the horizontal bar. The lock body is provided on the vertical bar.
4. The anti-theft faucet with a combination lock according to claim 3, characterized in that: The lock rod consists of multiple sub-rods that can rotate around each other but will not detach from each other. There are multiple sets of lock rings, lock discs, vertical rods, and lock bodies, and each lock disc is independently fixed on a sub-rod.
5. The anti-theft faucet with a combination lock according to claim 3 or 4, characterized in that: The handle has a hole at its front end, through which the needle bar can be inserted to push the locking bar and disengage the locking disc from the annular groove. The number of pin connection structures between the locking disc and the annular groove is the same as the number of passwords. These pin connection structures are distributed in a centrally symmetrical manner. An adjusting spring is fixed between the side of the locking bar facing away from the hole and the handle. When the needle bar does not push the locking bar, the adjusting spring causes the locking bar to push outward and the locking disc to be embedded in the annular groove.
6. The anti-theft faucet with a combination lock according to claim 3 or 4, characterized in that: The outer ring of the lock ring is marked with a password, which consists of 10 Arabic numerals from 0 to 9.