A type of lock for public restrooms

Abstract

This utility model belongs to the field of lock technology, specifically relating to a lock for public restrooms. It includes an inner lock plate, an adjustment groove on the inner wall surface of the inner lock plate, a guide rod connected to the surface of the adjustment groove, a side plate slidably connected to the surface of the guide rod, a first spring connected to one side surface of the side plate, and a latch connected to the other side surface of the first spring connected to the inner wall surface of the inner lock plate. A slot is formed on the side of the latch surface away from the first spring, and a crossbar on the surface of an insert plate is movably inserted into the slot. A set of outer tubes is connected to the surface of the insert plate. This utility model, through the mutual cooperation of the inner lock plate, adjustment groove, guide rod, side plate, first spring, latch, slot, insert plate, outer tubes, inner rod, and second spring, utilizes the first spring to elastically connect the latch to the inner lock plate, avoiding its rigid connection to the door panel. This prevents repeated door-closing vibrations from affecting the connection stability, and consequently, loosening the latch and affecting the tightness of the connection between the door panel and the door frame.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology, specifically relating to a lock for public restrooms. Background Technology

[0002] Locks in public restrooms are primarily used to protect users' privacy and security. By locking the stalls or doors, they prevent unauthorized entry, creating a private and safe space for users. This is an important aspect of the human-centered design of public facilities. Its significance lies in balancing the openness of public spaces with the privacy needs of individual users, improving the user experience and civility of public restrooms, and also regulating usage order to some extent, reducing conflicts caused by space occupancy.

[0003] Existing public restroom locks are generally rigidly connected to the door panel. However, the impact of closing the door is relatively large. Over time, this can cause the rigidly connected latch to loosen, which in turn affects the locking effectiveness between the door panel and the door frame. This can result in some door panels not locking properly, leading to privacy violations and affecting the user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a lock for public restrooms, which aims to solve the problem that existing public restroom locks are generally rigidly connected to the door panel. However, the impact force when closing the door is relatively large, and long-term use can cause the rigidly connected lock tongue to loosen, thereby affecting the locking effect between the door panel and the door frame, resulting in some door panels not being locked securely, which in turn leads to the invasion of privacy and affects the user experience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lock for public restrooms, comprising an inner lock plate, an adjustment groove formed on the inner wall surface of the inner lock plate, a guide rod connected to the surface of the adjustment groove, a side plate slidably connected to the surface of the guide rod, a first spring connected to one side surface of the side plate, the other side surface of the first spring connected to the inner wall surface of the inner lock plate, a lock tongue connected to the surface of the side plate, a slot formed on the side of the lock tongue away from the first spring, a crossbar of the insert plate movably inserted into the surface of the slot, a set of outer tubes connected to the surface of the insert plate, an inner rod sleeved on the open end surface of the outer tubes, the other side surface of the inner rod connected to the inner wall surface of the inner lock plate, a second spring connected to the inner wall surface of the inner lock plate, the other side surface of the second spring connected to the surface of the insert plate, a screw connected to the surface of the inner lock plate away from the insert plate, an outer lock plate inserted into the surface of the screw, and the other side surface of the outer lock plate abutting against the screw surface by a nut threaded connection.

[0006] As a preferred embodiment of the lock for public restrooms according to this utility model, the two sets of guide rods, side plates and first springs are respectively located on both sides of the lock tongue.

[0007] As a preferred embodiment of the lock for public restrooms according to this utility model, the surface of the lock tongue away from the display light panel is connected to a rectangular plate, the shape and size of which are adapted to the sliding groove on the back side of the inner lock plate.

[0008] As a preferred embodiment of the lock for public restrooms according to this utility model, the insert plate, outer tube, inner rod, and second spring are located on the inner lock plate surface near the opening end of the adjustment groove.

[0009] As a preferred embodiment of the lock for public restrooms according to this utility model, the outer lock plate is slidably connected to a display light plate, and the other side of the display light plate is inserted into the surface of the lock tongue.

[0010] As a preferred embodiment of the lock for public restrooms according to this utility model, the crossbar on the surface of the display light panel is slidably connected to the surface of the inner lock plate, and the display frame is installed on the surface of the outer lock plate at the front end of the display light panel.

[0011] As a preferred embodiment of the lock for public restrooms according to this utility model, the surface of the display frame is fitted with colored glass, and the two display frames are located parallel to each other on the surface of the outer lock plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] Through the cooperation between the inner lock plate, adjusting groove, guide rod, side plate, first spring, lock tongue, slot, insert plate, outer tube, inner rod and second spring, the first spring is used to elastically connect the lock tongue to the inner lock plate, avoiding its rigid connection to the door panel, which would cause repeated door closing vibrations to affect its connection stability, and then affect the tightness of the connection between the door panel and the door frame after it loosens.

[0014] By utilizing the interplay between the latch, outer locking plate, indicator light panel, and display frame, the indicator light panel moves as the latch extends, thereby using different colored glass panels mounted on the two display frames to display different colored lights to indicate whether the public restroom is in use. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded cross-sectional structure from the rear view of this utility model;

[0019] Figure 4 This is a top view sectional structural diagram of the present invention;

[0020] Figure 5 This is a cross-sectional exploded view of the insert plate and outer tube of this utility model.

[0021] In the diagram: 1. Inner locking plate; 2. Adjustment groove; 3. Guide rod; 4. Side plate; 5. First spring; 6. Locking tongue; 7. Slot; 8. Insert plate; 9. Outer tube; 10. Inner rod; 11. Second spring; 12. Screw; 13. Outer locking plate; 14. Indicator light panel; 15. Indicator frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides the following technical solution: a lock for public restrooms, including an inner lock plate 1, an adjustment groove 2 on the inner wall surface of the inner lock plate 1, a guide rod 3 connected to the surface of the adjustment groove 2, a side plate 4 slidably connected to the surface of the guide rod 3, a first spring 5 connected to one side surface of the side plate 4, the other side surface of the first spring 5 connected to the inner wall surface of the inner lock plate 1, a lock tongue 6 connected to the surface of the side plate 4, a slot 7 on the side of the lock tongue 6 away from the first spring 5, a crossbar on the surface of the slot 7 movably inserted into the surface of the insert plate 8, a set of outer tubes 9 connected to the surface of the insert plate 8, an inner rod 10 sleeved on the open end surface of the outer tubes 9, the other side surface of the inner rod 10 connected to the inner wall surface of the inner lock plate 1, a second spring 11 connected to the inner wall surface of the inner lock plate 1, the other side surface of the second spring 11 connected to the surface of the insert plate 8, a screw 12 connected to the side surface of the inner lock plate 1 away from the insert plate 8, an outer lock plate 13 inserted into the surface of the screw 12, and the other side surface of the outer lock plate 13 abutting against the surface of the screw 12 by a nut threaded connection.

[0024] Preferably, the two sets of guide rods 3, the side plates 4 and the first spring 5 are located on both sides of the locking tongue 6.

[0025] In actual use, the locking tongue 6 releases stored energy through the first spring 5 connected elastically on both sides, thus popping out toward the opening end of the adjustment groove 2. At the same time as popping out, the side plate 4 slides on the guide rod 3 to guide and limit the popping out of the locking tongue 6.

[0026] Preferably, a rectangular plate is connected to the surface of the latch 6 away from the display light panel 14, and its shape and size are adapted to the sliding groove on the back side of the inner lock plate 1.

[0027] In actual use, after use, the user pulls the rectangular plate on the back of the latch 6 and pulls the latch 6 in the opposite direction to return it to its original position.

[0028] Preferably, the insert plate 8, outer tube 9, inner rod 10 and second spring 11 are located on the surface of the inner locking plate 1 near the opening end of the adjusting groove 2.

[0029] In practical use, when the insert plate 8 is pulled outward to disengage the crossbar on it from the latch 6, the outer tube 9 connected to its surface moves outward on the inner rod 10, thereby guiding and limiting the spring movement of the second spring 11. This makes it convenient for the latch 6 to be elastically inserted into the slot 7 again to fix its position when the latch 6 is pulled back to its original position.

[0030] Preferably, the outer lock plate 13 is slidably connected to the display light plate 14, and the other side of the display light plate 14 is inserted into the surface of the lock tongue 6.

[0031] In actual use, the indicator light panel 14, which is inserted into the latch 6, slides on the surface of the outer lock plate 13 under its drive, thereby adjusting the position of the indicator light panel 14 according to the usage situation, and thus accurately indicating whether the public restroom is in use.

[0032] Preferably, the crossbar on the surface of the display light panel 14 is slidably connected to the surface of the inner locking plate 1, and the display frame 15 is installed on the surface of the outer locking plate 13 at the front end of the display light panel 14.

[0033] In practical use, the display light panel 14 slides at the front end of the inner lock plate 1 under the action of the locking tongue 6, thereby adjusting the position of the display light panel 14 on the back side of the two display frames 15, and thus displaying different colors according to the usage.

[0034] Preferably, colored glass is mounted on the surface of the display frame 15, and the two display frames 15 are parallel to each other on the surface of the outer lock plate 13.

[0035] In practical use, when the latch 6 moves, the indicator light panel 14 inserted at its front end is moved along with it on the outer lock plate 13. The two display frames 15 installed on the surface of the outer lock plate 13 have green glass at the front of the indicator light panel 14 in its original position and red glass on the other side. When the indicator light panel 14, which is moved by the latch 6, moves to the front of the red display frame 15, the colorless light on the indicator light panel 14 is filtered by the red glass, thus displaying a red light, which in turn alerts people outside the public restroom that someone is using the restroom.

[0036] Working principle: When the inner locking plate 1 and the outer locking plate 13 are used to lock the door panel in the public restroom, the inner locking plate 1 can abut against the inside of the door panel by pre-setting mounting holes and sliding grooves on the door panel. The screw 12 passes through the mounting holes on the surface of the door panel, so that the outer locking plate 13 can be fitted onto the surface of the screw 12. The inner locking plate 1 and the outer locking plate 13 are connected to the door panel by a nut threaded connection. At the same time, the indicator light plate 14, which is slidably connected to the outer locking plate 13, passes through the surface of the door panel via a silicone rubber crossbar. The sliding groove on the surface is inserted into the latch 6, thus fixing the connection between the indicator light panel 14 and the latch 6. Furthermore, the indicator light panel 14 is connected to an external power source. When someone is using the device, the handle on the surface of the insert plate 8 is pulled from inside the bathroom, and the crossbar inserted into the latch 6 is pulled outwards. This causes the insert plate 8 to disengage from the latch 6, allowing the latch 6 to release its stored energy through the first spring 5 elastically connected on both sides, thus ejecting it towards the opening end of the adjusting groove 2. Simultaneously, the side plate 4 slides on the guide rod 3, further engaging the latch 6. The latch 6 is guided and limited until it pops out and abuts against the rectangular groove on the door frame surface in a parallel position, thus fixing the connection between the door panel and the door frame. When the latch 6 moves, the indicator light panel 14 inserted at its front end is moved along with it on the outer lock plate 13. The two display frames 15 installed on the surface of the outer lock plate 13 have green glass at the front of the indicator light panel 14 in its original position and red glass on the other side. When the indicator light panel 14, which is moved by the latch 6, moves to the front of the red display frame 15, the colorless light on the indicator light panel 14 is filtered by the red glass, thus displaying a red light, thereby indicating to people outside the public restroom that someone is using the restroom. After use, the user pulls the rectangular plate on the back side of the latch 6 and pulls the latch 6 in the opposite direction to return it to its original position. Then, the elastically connected insert plate 8 is inserted into the latch 6 again to fix its position, thereby causing the indicator light panel 14 at the front of the latch 6 to move back to the front of the green display frame 15 for subsequent use.

[0037] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lock for public restrooms, comprising an inner lock plate (1), characterized in that: An adjustment groove (2) is formed on the inner wall surface of the inner locking plate (1). A guide rod (3) is connected to the surface of the adjustment groove (2). A side plate (4) is slidably connected to the surface of the guide rod (3). A first spring (5) is connected to one side surface of the side plate (4). The other side surface of the first spring (5) is connected to the inner wall surface of the inner locking plate (1). A lock tongue (6) is connected to the surface of the side plate (4). A slot (7) is formed on the side of the lock tongue (6) away from the first spring (5). A crossbar on the surface of the insert plate (8) is movably inserted into the surface of the slot (7). The surface of the insert plate (8) is connected to... A set of outer tubes (9) are connected, and an inner rod (10) is sleeved on the open end surface of the outer tubes (9). The other side surface of the inner rod (10) is connected to the inner wall surface of the inner locking plate (1). The inner wall surface of the inner locking plate (1) is connected to a second spring (11). The other side surface of the second spring (11) is connected to the surface of the insert plate (8). A screw (12) is connected to the side surface of the inner locking plate (1) away from the insert plate (8). An outer locking plate (13) is inserted into the surface of the screw (12). The other side surface of the outer locking plate (13) is abutted against the surface of the screw (12) by a nut thread.

2. A lock for a public restroom according to claim 1, characterized in that: The two sets of guide rods (3), side plates (4) and first springs (5) are located on both sides of the latch (6).

3. A lock for a public restroom according to claim 1, characterized in that: The surface of the latch (6) away from the display light panel (14) is connected to a rectangular plate, the shape and size of which are adapted to the sliding groove on the back side of the inner lock plate (1).

4. A lock for a public restroom according to claim 1, characterized in that: The insert plate (8), outer tube (9), inner rod (10), and second spring (11) are located on the surface of the inner locking plate (1) near the opening end of the adjusting groove (2).

5. A lock for a public restroom according to claim 3, characterized in that: The outer lock plate (13) is slidably connected to the display light plate (14), and the other side of the display light plate (14) is inserted into the surface of the lock tongue (6).

6. A lock for a public restroom according to claim 5, characterized in that: The crossbar on the surface of the display light panel (14) is slidably connected to the surface of the inner locking plate (1), and the surface of the outer locking plate (13) is located at the front end of the display light panel (14) to install the display frame (15).

7. A lock for a public restroom according to claim 6, characterized in that: The display frame (15) is fitted with colored glass, and the two display frames (15) are located parallel to each other on the surface of the outer lock plate (13).

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