Public toilet door lock

By introducing identification displays and infrared sensors into public toilet door locks, the personnel identification problem that requires manual adjustment in the prior art is solved, which improves the convenience of use and extends the lock body life.

CN223190220UActive Publication Date: 2025-08-05NINGBO INMUTE MASCH PROD CO LTD
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Patent Information

Application Number
CN202422383430.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-08-05
Estimated Expiration
2034-09-29

AI Technical Summary

Technical Problem

The existing public toilet door locks cannot intelligently display someone or no one, which causes users to need to manually adjust, causing inconvenience.

Method used

A public toilet door lock is designed, equipped with a logo display and infrared sensor, which shows whether there is a person through a red and green light ring, and combines the oil guide valve port and the oil storage system to reduce wear.

Benefits of technology

It enables you to know whether the toilet is a person without manual adjustment, improves the convenience of use, and extends the lock body service life through the lubrication system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a public toilet door lock which comprises a square lock body, an outer side handle, an outer side panel, a spring bolt, a buckle box, an inner side handle and an inner side panel, and the outer side panel and the inner side panel are arranged on the outer side and the inner side of the square lock body and correspondingly connected with the outer side handle and the inner side handle. The spring bolt is located on the side portion of the square lock body and can stretch out and draw back through rotation of the outer side handle and the inner side handle, and the buckle box is connected with the spring bolt stretching out of the square lock body. A battery clamping groove is formed in the top end of the square lock body, a storage battery block is arranged in the battery clamping groove and connected with an identification displayer through a circuit line, and a red-green display lamp ring is arranged in the center of the outer side of the identification displayer. According to the utility model, people can be sensed through the built-in infrared sensor of the identification display, and then red or green can be displayed through the red and green display lamp ring, so that whether people exist or not can be indicated, manual adjustment by people is not needed, and the operation is very convenient.
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Description

Technical Field

[0001] The utility model relates to a public toilet door lock, belonging to the technical field of door locks. Background Art

[0002] Restrooms are essential places for people to take care of their personal needs. Public restrooms, as a crucial outdoor location for people to take care of their personal needs, have complex traffic volumes and lengths of stay, especially in public women's restrooms. Public restrooms in crowded places like shopping malls and subways often experience long queues during peak hours. Existing public restroom door locks have a drawback: they lack intelligent display of occupied / vacant identification, requiring users to adjust the lock manually. To address this, we designed a public restroom door lock. Utility Model Content

[0003] The purpose of the present utility model is to provide a public toilet door lock to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a public toilet door lock, comprising a square lock body, an outside handle, an outside panel, a lock tongue, a buckle box, an inside handle and an inside panel, the two ends of the square iron shaft of the square lock body being connected to the outside handle and the inside handle respectively, the outside panel and the inside panel being arranged on the outside and inside of the square lock body and being connected correspondingly to the outside handle and the inside handle, the lock tongue being located on the side of the square lock body and being capable of telescopic movement by rotating the outside handle and the inside handle, the buckle box being connected to the lock tongue extending out of the square lock body, a battery slot being provided at the top of the square lock body, a battery block being provided inside the battery slot, the battery block being connected to an identification display via a circuit line, and a red and green display light ring being provided at the center of the outside of the identification display.

[0005] In the above-mentioned public toilet door lock, a snap-fit groove is provided at the inner side of the logo display, and a nano adhesive ring is provided inside the snap-fit groove.

[0006] In the above-mentioned public toilet door lock, an infrared sensor is provided inside the logo display.

[0007] In the above-mentioned public toilet door lock, an oil guide valve port is embedded in the inner side of the square lock body, an oil inlet needle valve is provided at the front end of the oil guide valve port, and an oil storage cylinder is provided at one end of the oil inlet needle valve.

[0008] In the above-mentioned public toilet door lock, a guide belt is provided at the rear end of the oil guide valve port, and the guide belt corresponds to the square iron axis of the square lock body.

[0009] In the above-mentioned public toilet door lock, the outer panel and the inner panel are both annular structures.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model relates to a public toilet door lock, which has a battery slot at the top of a square lock body, a battery block arranged inside the battery slot, and the battery block is connected to an identification display through a circuit line. A red and green display light ring is provided at the center of the outer side of the identification display, which can sense people through the built-in infrared sensor of the identification display, and then the red and green display light ring can show red or green to indicate whether there is someone, and no manual adjustment is required by personnel, which is very convenient. An oil guide valve port is embedded on the inner side of the square lock body, an oil inlet needle valve is provided at the front end of the oil guide valve port, and an oil storage cylinder is provided at one end of the oil inlet needle valve, which is convenient for adding lubricating oil to the square iron shaft of the square lock body, so that the square iron shaft of the square lock body is reduced in wear during the rotation process of the inner handle or the outer handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a three-dimensional structural diagram of a public toilet door lock.

[0013] Figure 2 The utility model is a schematic structural diagram of the inner side of a square lock body of a public toilet door lock.

[0014] Figure 3 The utility model is a structural schematic diagram of a public toilet door lock identification display.

[0015] In the figure: 1. Square lock body; 2. Outer handle; 3. Outer panel; 4. Lock tongue; 5. Buckle box; 6. Battery pack; 7. Identification display; 8. Circuit line; 9. Red and green display light ring; 10. Battery slot; 11. Inner handle; 12. Inner panel; 13. Oil storage cylinder; 14. Oil inlet needle valve; 15. Oil guide valve port; 16. Guide strip; 17. Snap-in groove; 18. Nano adhesive ring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3 , the utility model provides a technical solution for a public toilet door lock:

[0018] Embodiment: A door lock comprises a square lock body 1, an outside handle 2, an outside panel 3, a lock tongue 4, a buckle box 5, an inside handle 11, and an inside panel 12. The square iron shaft of the square lock body 1 is connected to the outside handle 2 and the inside handle 11 at both ends, respectively. The outside panel 3 and the inside panel 12 are disposed on the outside and inside of the square lock body 1 and correspondingly connected to the outside handle 2 and the inside handle 11. The lock tongue 4 is located on the side of the square lock body 1 and can be extended and retracted by rotating the outside handle 2 and the inside handle 11. The buckle box 5 is connected to the lock tongue 4 extending out of the square lock body 1. A battery slot 10 is defined at the top of the square lock body 1. A battery pack 6 is disposed within the battery slot 10. The battery pack 6 is connected to an indicator light 7 via a circuit line 8. A red and green indicator light ring 9 is disposed at the center of the outside of the indicator light 7. An infrared sensor is disposed within the indicator light 7. This infrared sensor can detect when someone is using the restroom, thereby causing the red and green indicator light ring 9 to display red and green.

[0019] In this embodiment, in order to facilitate the installation of the logo display 7 on the toilet door and ensure good firmness of the installation, a snap-fit groove 17 is provided on the inner side of the logo display 7 , and a nano adhesive ring 18 is provided inside the snap-fit groove 17 .

[0020] Example 2: To add lubricating oil to the square iron shaft of the square lock body 1 and reduce wear on the square iron shaft during the rotation of the inner handle 2 or the outer handle 11, an oil guide valve port 15 is embedded in the inner side of the square lock body 1. An oil inlet needle valve 14 is provided at the front end of the oil guide valve port 15, and an oil reservoir cylinder 13 is provided at one end of the oil inlet needle valve 14. A guide strip 16 is provided at the rear end of the oil guide valve port 15, and the guide strip 16 corresponds to the square iron shaft of the square lock body 1.

[0021] Working Principle: Install the square lock body 1 into the door slot of the toilet door and secure it with bolts. Then install the outer handle 2, outer panel 3, inner handle 11, and inner panel 12. Attach the buckle box 5 to the side of the toilet door panel, aligning it with the lock tongue 4. When the door lock is in use, the built-in infrared sensor of the identification display 7 detects the presence of a person, and the red and green display light ring 9 will turn red or green to indicate whether there is someone inside. No manual adjustment is required, making it very convenient.

[0022] Furthermore, an oil guide valve port 15 is embedded in the inner side of the square lock body 1, an oil inlet needle valve 14 is provided at the front end of the oil guide valve port 15, and an oil storage cylinder 13 is provided at one end of the oil inlet needle valve 14, so as to facilitate the addition of lubricating oil to the square iron shaft of the square lock body 1, thereby reducing the wear of the square iron shaft of the square lock body 1 during the rotation process of the inner handle 2 or the outer handle 11.

[0023] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitute similar methods 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 public toilet door lock, comprising a square lock body (1), an outer handle (2), an outer panel (3), a lock tongue (4), a buckle box (5), an inner handle (11) and an inner panel (12), characterized in that: The two ends of the square iron shaft of the square lock body (1) are respectively connected to the outer handle (2) and the inner handle (11); the outer panel (3) and the inner panel (12) are arranged on the outer side and the inner side of the square lock body (1) and are correspondingly connected to the outer handle (2) and the inner handle (11); the lock tongue (4) is located on the side of the square lock body (1) and can achieve telescopic movement by rotating the outer handle (2) and the inner handle (11); the buckle box (5) is connected to the lock tongue (4) extending out of the square lock body (1); a battery slot (10) is provided at the top of the square lock body (1); a battery block (6) is provided inside the battery slot (10); the battery block (6) is connected to an identification display (7) through a circuit line (8); a red and green display light ring (9) is provided at the center of the outer side of the identification display (7).

2. A public toilet door lock according to claim 1, characterized in that: A clamping groove (17) is provided on the inner side of the identification display (7), and a nano adhesive ring (18) is provided inside the clamping groove (17).

3. A public toilet door lock according to claim 1, characterized in that: An infrared sensor is provided inside the identification display (7).

4. A public toilet door lock according to claim 1, characterized in that: An oil guide valve port (15) is embedded and installed on the inner side of the square lock body (1), an oil inlet needle valve (14) is provided at the front end of the oil guide valve port (15), and an oil storage cylinder (13) is provided at one end of the oil inlet needle valve (14).

5. A public toilet door lock according to claim 4, characterized in that: A guide belt (16) is provided at the rear end of the oil guide valve port (15), and the guide belt (16) corresponds to the square iron axis of the square lock body (1).

6. A public toilet door lock according to claim 1, characterized in that: The outer panel (3) and the inner panel (12) are both annular structures.