Three-rod handle lock with indication function

Abstract

A three-rod handle lock with an indicating function comprises an inner handle assembly, an outer handle assembly and a hollow square rod, the two ends of the hollow square rod are connected with the inner handle assembly and the outer handle assembly respectively, the inner handle assembly comprises an inner handle body and an inner rotating column, the inner rotating column is rotatably arranged in the inner handle body, and the outer handle assembly is connected with the hollow square rod. The outer handle assembly comprises an outer handle body and an outer rotating column, the outer rotating column is rotatably arranged in the outer handle body, a window opening is formed in the surface of the outer handle body, the top of the outer rotating column can be seen through the window opening, and an indicating color plate is arranged at the top of the outer rotating column. The inner lever handle assembly has the advantages that the inner rotating column on the inner lever handle assembly is connected with the outer rotating column (the indicating color plate) through the hollow square rod and matched with the outer rotating column (the indicating color plate) in an inserted mode, the inner rotating column rotates to drive the outer rotating column (the indicating color plate) to rotate, and due to the connecting structure, firstly, the assembly strength is good, secondly, the production and manufacturing process is very convenient, and the allowable assembly tolerance is large.

Description

Technical Field

[0001] The utility model relates to the field of locks, in particular to a three-bar handle lock with an indicating function. Background Art

[0002] At present, there are many types of locks on the market, including mechanical locks, electronic locks, etc. The internal structure and installation methods of the locks are also different. Especially between different countries, due to different implementation standards, the types of locks vary greatly.

[0003] Door locks can be divided into indoor door locks, anti-theft door locks and bathroom locks used in bathroom environments according to their different uses and functions.

[0004] In addition, there are also some special-purpose door locks in actual applications, such as door locks for public places with privacy requirements. Such door locks need to meet the requirements of locking performance, high mechanical strength, and preferably be able to provide an indication of the environment outside the door to indicate whether the privacy space is in use. Utility Model Content

[0005] In order to solve the above problems, a three-bar handle lock with an indication function is specially manufactured. While providing the indication function, it also has a more stable mechanical structure and can meet the needs of frequent use in public environments.

[0006] To achieve the above-mentioned purpose, the present invention is solved through the following technical solution: a three-rod handle lock with an indication function, comprising an inner handle assembly, an outer handle assembly and a hollow square rod, the two ends of the hollow square rod are respectively connected to the inner handle assembly and the outer handle assembly, the inner handle assembly comprises an inner handle body and an inner rotating column, the inner rotating column is rotatably arranged in the inner handle body, the outer handle assembly comprises an outer handle body and an outer rotating column, the outer rotating column is rotatably arranged in the outer handle body, a window opening is provided on the surface of the outer handle body, the top of the outer rotating column can be seen through the window opening, and an indicating color plate is provided on the top of the outer rotating column.

[0007] Furthermore, a relatively movable rotary column connecting rod is provided in the hollow square rod, the rotary column connecting rod is in the shape of a strip, and one end of the inner rotary column and the outer rotary column is provided with a slot that cooperates with the rotary column connecting rod.

[0008] Furthermore, a protruding structure is provided near the middle section of the rotary column connecting rod, and the width of the protruding structure is greater than the inner cavity of the hollow square rod.

[0009] Furthermore, a through hole is provided on the surface of the outer handle body, and the through hole is adjacent to the window opening.

[0010] Furthermore, a cylindrical shaft is provided on the top of the outer rotating column, a first through hole is provided in the middle of the indicator color plate, the first through hole is sleeved on the cylindrical shaft, and the cylindrical shaft is inserted into the through hole on the surface of the outer handle body.

[0011] Furthermore, a boss is provided on the top of the external rotating column, and a second through hole is provided next to the first through hole of the indicator color plate. The second through hole is sleeved on the boss. When the external rotating column rotates, the indicator color plate is driven to rotate by the cooperation between the boss and the second through hole.

[0012] Furthermore, a coin slot is provided on the surface of the cylindrical shaft at the top of the outer rotating column.

[0013] The utility model is beneficial in that:

[0014] 1. This utility model patent provides an indicator color plate on the outer handle body, so that the door lock has an indicator function, which is suitable for use in a private environment in public places.

[0015] 2. The inner column on the inner handle assembly is connected to the outer column (indicator color plate) via a hollow square rod. The two are plugged into each other, and the rotation of the inner column drives the rotation of the outer column (indicator color plate). This connection structure not only has good assembly strength, but also is very convenient for the manufacturing process and allows for a wide assembly tolerance.

[0016] 3. A coin slot is located at the top of the outer handle, which is exposed on the outside of the handle. In an emergency, an outsider can insert a coin into the slot and turn it to unlock the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a three-bar handle lock with an indicating function.

[0018] Figure 2 The utility model is a schematic diagram of the connection relationship between the outer rotating column, the hollow square rod and the inner rotating column in a three-rod handle lock with an indicating function.

[0019] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a three-bar handle lock with an indicating function.

[0020] Figure 4 The utility model is a schematic structural diagram of an outer rotating column in a three-bar handle lock with an indicating function.

[0021] Figure 5 The utility model is a schematic structural diagram of an inner rotating column in a three-bar handle lock with an indicating function.

[0022] Figure 6 The utility model is a structural schematic diagram of a hollow square rod and a rotary column connecting rod in a three-rod handle lock with an indicating function.

[0023] Figure numerals: inner handle assembly 1, outer handle assembly 2, inner rotating column 3, hollow square rod 4, rotating column connecting rod 5, outer rotating column 6, indicator color plate 7, inner handle body 8, outer handle body 9, slot 10, cylindrical shaft 11, boss 12, slot 13, protruding structure 14, window opening 15, coin slot 16. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] A three-rod handle lock with an indication function comprises an inner handle assembly, an outer handle assembly, and a hollow square rod. The two ends of the hollow square rod are connected to the inner handle assembly and the outer handle assembly respectively. The inner handle assembly comprises an inner handle body and an inner rotating column. The inner rotating column is rotatably arranged in the inner handle body. The outer handle assembly comprises an outer handle body and an outer rotating column. The outer rotating column is rotatably arranged in the outer handle body. A window opening is provided on the surface of the outer handle body. The top of the outer rotating column can be seen through the window opening. An indicating color plate is provided on the top of the outer rotating column. A relatively movable rotating column connecting rod is provided in the hollow square rod. The rotating column connecting rod is in the shape of a strip. One end of the inner rotating column and the outer rotating column are both provided with a slot that cooperates with the rotating column connecting rod. A protruding structure is provided near the middle section of the rotating column connecting rod. The width of the protruding structure is greater than the inner cavity of the hollow square rod. A through hole is also provided on the surface of the outer handle body. The through hole is adjacent to the window opening. The outer rotating column is topped with a cylindrical shaft. A first through-hole is located in the center of the color indicator plate, which is fitted over the cylindrical shaft. The cylindrical shaft then inserts into a through-hole on the outer handle body. A boss is also located on the top of the outer rotating column. A second through-hole is located adjacent to the first through-hole on the color indicator plate, which fits over the boss. Rotation of the outer rotating column drives the color indicator plate through the engagement of the boss and the second through-hole. A coin slot is also located on the surface of the cylindrical shaft at the top of the outer rotating column.

[0026] The actual usage is as follows:

[0027] In a public environment where privacy is required (for example, a public restroom), the user initially stands outside the door and presses the exterior handle to open the door lock tongue. This mechanism is similar to that of a traditional handle lock and will not be further described. Once opened, the user enters the door and closes it. This rotates the inner column, which in turn rotates the column connecting rod. The raised structure on the column connecting rod activates the locking tongue. As the locking tongue closes, the column connecting rod rotates the outer column, which in turn rotates a color indicator plate on the outer column. The indicator plate can use color or text to indicate the state of use, as long as it serves to alert outsiders.

[0028] The cylindrical axis of the external rotating column is inserted into the through hole of the external handle body, which can achieve axial positioning of the two, so that the indicator color plate will not be offset during assembly.

[0029] In an emergency, an outsider can insert a coin into the coin slot and rotate the outer rotating cylinder to release the locked state of the door lock bolt.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A three-bar handle lock with an indication function, characterized in that: It includes an inner handle assembly, an outer handle assembly and a hollow square rod. The two ends of the hollow square rod are respectively connected to the inner handle assembly and the outer handle assembly. The inner handle assembly includes an inner handle body and an inner rotating column. The inner rotating column is rotatably arranged in the inner handle body. The outer handle assembly includes an outer handle body and an outer rotating column. The outer rotating column is rotatably arranged in the outer handle body. A window opening is provided on the surface of the outer handle body. The top of the outer rotating column can be seen through the window opening. An indicator color plate is provided on the top of the outer rotating column.

2. The three-bar handle lock with an indication function according to claim 1, characterized in that: A relatively movable rotating column connecting rod is arranged in the hollow square rod. The rotating column connecting rod is in a strip shape. One end portion of the inner rotating column and the outer rotating column is provided with a slot matched with the rotating column connecting rod.

3. The three-bar handle lock with an indication function according to claim 2, characterized in that: A convex structure is provided near the middle section of the rotary column connecting rod, and the width of the convex structure is greater than the inner cavity of the hollow square rod.

4. The three-bar handle lock with an indication function according to claim 3, characterized in that: A through hole is also provided on the surface of the outer handle body, and the through hole is adjacent to the window opening.

5. The three-bar handle lock with an indication function according to claim 4, characterized in that: A cylindrical shaft is also provided on the top of the outer rotating column, a first through hole is provided in the middle of the indicator color plate, the first through hole is sleeved on the cylindrical shaft, and the cylindrical shaft is inserted into the through hole on the surface of the outer handle body.

6. The three-bar handle lock with an indication function according to claim 5, characterized in that: A boss is provided on the top of the external rotating column, and a second through hole is provided beside the first through hole of the indicator color plate. The second through hole is sleeved on the boss. When the external rotating column rotates, the indicator color plate is driven to rotate by the cooperation between the boss and the second through hole.

7. The three-bar handle lock with an indication function according to claim 6, characterized in that: A coin slot is provided on the surface of the cylindrical shaft at the top of the outer rotating column.

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