Anti-corrosion burglarproof door handle
By providing a limiting mechanism and an extrusion mechanism in the door handle, the outside prevents the door from opening through the key hole after the door lock is closed. The handle solves the problem of insufficient safety in the prior art and achieves higher safety.
Patent Information
- Application Number
- CN202420867209.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The existing anti-theft door handle that achieves synchronous rotation through coaxial axis can still be opened through the key hole after the door lock is closed, especially when used in places with higher privacy, with a lower safety factor.
An anti-rust and anti-theft door handle is designed, and a limiting mechanism and a limiting sleeve are provided inside the grip. The extrusion mechanism makes the external grip unable to rotate, ensuring that the door lock cannot be opened from the outside after closing.
It effectively improves the safety of the door handle, ensuring that the room cannot be accessed even if the outside is operated through the keyhole, and enhances the security of the privacy place.
Smart Images
Figure CN222228238U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door handles, in particular to an anti-rust and anti-theft door handle. Background Art
[0002] During the production process of anti-theft door handles, the electroplating process can make the door handles have an anti-corrosion effect. In the actual application process, the existing anti-theft door handles are generally used in conjunction with each other. The internal door handle and the external door handle are connected by a rotating shaft. When the door is opened, the two door handles will rotate at the same time;
[0003] However, in actual use, the door handle that realizes synchronous rotation through the coaxial axis can still be opened from the outside through the keyhole after the door lock is closed. Especially when used in some places with high privacy, the safety factor is low. Therefore, a rust-proof and anti-theft door handle is proposed to address the above problem. Utility Model Content
[0004] The purpose of the utility model is to provide a rust-proof and anti-theft door handle to solve the problem that, in actual use, the door handle that realizes synchronous rotation through the coaxial line can still be opened from the outside through the keyhole after the door lock is closed, especially when used in some places with high privacy, the safety factor is low.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A rust-proof and anti-theft door handle, comprising a cover plate, a handle and a rotating shaft, wherein the inner side of one end of the cover plate is rotatably connected to the rotating shaft, the top end of the rotating shaft is fixedly connected to the handle, a limiting mechanism is provided on the inner side of the handle, a telescopic spring is installed in the middle of the limiting mechanism, an inner gear ring is installed on the outer side of the lower end of the limiting mechanism, and a limiting sleeve for limiting is installed on the outer side of the handle;
[0007] The handle comprises a handle body, an internal cavity is formed inside the handle body, a sliding groove is formed at the bottom end of the handle body, the upper end of the limiting mechanism is arranged inside the internal cavity, the limiting mechanism comprises a limiting bent plate, teeth are fixedly connected to the bottom end of the limiting bent plate, a guide rod is slidably connected to the inner side of the upper end of the limiting bent plate, a square groove is formed inside the upper end of the limiting bent plate, an inclined block is fixedly connected to one side of the square groove, and a pressing mechanism is installed at the lower side of the inclined block;
[0008] The extrusion mechanism comprises a vertical block, and the inner side of the upper end of the vertical block is slidably connected to a limiting rod.
[0009] As a further optimization of the present invention, the inner gear ring is fixedly connected to the inside of the cover plate, a plurality of teeth are provided, and the center points of the inner gear ring and the teeth are arranged in the same horizontal plane.
[0010] As a further optimization of the present invention, the bottom end of the rotating shaft is arranged inside the cover plate, one end of the telescopic spring is fixedly connected to the limit bending plate, the other end of the telescopic spring is fixedly connected to the inner wall of the cylindrical cavity, and the cylindrical cavity is connected to the internal cavity.
[0011] As a further optimization of the present invention, the limiting bend plate is U-shaped, a sliding hole is provided at the bottom of the rotating shaft, and the bottom of the limiting bend plate is slidably connected to the rotating shaft through the sliding hole.
[0012] As a further optimization of the present invention, two guide rods are provided, the guide rods are parallel to each other, and one end of the guide rod away from the limiting bend plate is fixedly connected to the inner wall of the internal cavity.
[0013] As a further optimization of the present invention, the cross section of the vertical block is a rectangle, the lower end of the vertical block is slidably connected to the handle body through a slide groove, and the bottom of the vertical block is exposed outside the handle body.
[0014] As a further optimization of the present invention, the upper end of the limit rod is fixedly connected to the inner wall of the internal cavity, the upper end of the vertical block is arranged inside the square groove, and one side of the upper end of the vertical block is an inclined surface.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] In the utility model, the handle, the limiting mechanism and the limiting sleeve are provided, and the handle serves as the handle inside the door panel. After closing the door, the user moves the limiting sleeve to the outside of the vertical block and squeezes it, so that the external handle cannot be rotated, and outsiders cannot enter the room (even if the door lock is opened through the keyhole, they cannot enter), which is safer. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the handle of the utility model;
[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;
[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at B in the middle;
[0021] Figure 5 This is a schematic diagram of the limit bending plate structure of the utility model;
[0022] Figure 6 This is a schematic diagram of the structure of the extrusion mechanism of the utility model.
[0023] In the figure: 1. cover plate; 2. handle; 21. handle body; 22. internal cavity; 23. slide groove; 3. rotating shaft; 4. inner gear ring; 5. cylindrical cavity; 6. telescopic spring; 7. limiting mechanism; 71. limiting bent plate; 72. teeth; 73. square groove; 74. oblique block; 75. guide rod; 76. extrusion mechanism; 761. vertical block; 762. limiting rod; 8. sliding hole; 9. limiting sleeve. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0026] See also Figure 1-6 , the utility model provides a technical solution:
[0027] A rust-proof and anti-theft door handle, comprising a cover plate 1, a handle 2 and a rotating shaft 3. The inner side of one end of the cover plate 1 is rotatably connected to the rotating shaft 3, and the top of the rotating shaft 3 is fixedly connected to the handle 2. A limiting mechanism 7 is provided on the inner side of the handle 2, and a telescopic spring 6 is installed in the middle of the limiting mechanism 7. An inner gear ring 4 is installed on the outer side of the lower end of the limiting mechanism 7, and a limiting sleeve 9 for limiting is installed on the outer side of the handle 2; the handle 2 comprises a handle body 21, an inner side of the handle body 21 is provided with an internal cavity 22, and a sliding sleeve 9 is provided at the bottom end of the handle body 21. Slot 23, the upper end of the limiting mechanism 7 is arranged on the inner side of the internal cavity 22, the limiting mechanism 7 includes a limiting bent plate 71, the bottom end of the limiting bent plate 71 is fixedly connected with a tooth 72, the inner side of the upper end of the limiting bent plate 71 is slidably connected with a guide rod 75, a square groove 73 is opened on the inner side of the upper end of the limiting bent plate 71, an inclined block 74 is fixedly connected to one side of the square groove 73, and an extrusion mechanism 76 is installed on the lower side of the inclined block 74; the extrusion mechanism 76 includes a vertical block 761, and the inner side of the upper end of the vertical block 761 is slidably connected with a limiting rod 762.
[0028] As a further implementation of the present invention, the inner gear ring 4 is fixedly connected to the inside of the cover plate 1, a plurality of teeth 72 are provided, and the center points of the inner gear ring 4 and the teeth 72 are arranged in the same horizontal plane, so that when the vertical block 761 is not squeezed, the teeth 72 and the inner gear ring 4 are in contact, thereby achieving the positioning effect of the handle 2;
[0029] As a further implementation of this solution, the bottom end of the rotating shaft 3 is arranged inside the cover plate 1, one end of the telescopic spring 6 is fixedly connected to the limit bending plate 71, and the other end of the telescopic spring 6 is fixedly connected to the inner wall of the cylindrical cavity 5, and the cylindrical cavity 5 is connected to the internal cavity 22. Through the above arrangement, the stability of the overall structure of the device is further improved;
[0030] As a further implementation of this solution, the limiting curved plate 71 is U-shaped, and a sliding hole 8 is opened at the bottom of the rotating shaft 3. The bottom of the limiting curved plate 71 is slidably connected with the rotating shaft 3 through the sliding hole 8, which can further improve the stability of the lower end of the limiting curved plate 71 during movement;
[0031] As a further implementation of the present invention, two guide rods 75 are provided, the guide rods 75 are parallel to each other, and one end of the guide rod 75 away from the limiting curved plate 71 is fixedly connected to the inner wall of the internal cavity 22. By providing two guide rods 75, the stability of the upper end of the limiting curved plate 71 during the movement can be improved;
[0032] As a further implementation of the present solution, the cross section of the vertical block 761 is rectangular, the lower end of the vertical block 761 is slidably connected to the handle body 21 through the slide groove 23, and the bottom of the vertical block 761 is exposed outside the handle body 21, so that the handle 2 can be limited by the vertical block 761;
[0033] As a further implementation scheme of the present scheme, the upper end of the limiting rod 762 is fixedly connected to the inner wall of the internal cavity 22, the upper end of the vertical block 761 is arranged inside the square groove 73, and one side of the upper end of the vertical block 761 is an inclined surface, which is convenient for squeezing the inclined block 74 through the vertical block 761 to realize the movement of the limiting bent plate 71.
[0034] Working process: in the process of opening the door panel by rotating the handle 2, the staff first needs to squeeze the vertical block 761 into the handle body 21. After the vertical block 761 is squeezed, the limit bent plate 71 will move in the direction away from the guide rod 75. Specifically, the vertical block 761 squeezes the inclined block 74 to cause the inclined block 74 to be displaced. When the limit bent plate 71 moves, the teeth 72 fixedly connected at the bottom will separate from the inner gear ring 4, thereby driving the rotating shaft 3 to rotate. During the rotation of the rotating shaft 3, it will drive the mechanism inside the cover plate 1 to rotate, so as to realize the opening of the door lock. The same can be achieved by squeezing the vertical block 761 by the limit sleeve 9.
[0035] The handle 2 arranged above serves as a handle inside the door panel. After closing the door, the user moves the limiting sleeve 9 to the outside of the vertical block 761 and squeezes it. At this time, the external handle 2 cannot rotate, so that outsiders cannot enter the room (even if the door lock is opened through the keyhole, they cannot enter), which is safer.
[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rust-proof and anti-theft door handle, comprising a cover plate (1), a handle (2) and a rotating shaft (3), characterized in that: A rotating shaft (3) is rotatably connected to the inner side of one end of the cover plate (1); a handle (2) is fixedly connected to the top of the rotating shaft (3); a limiting mechanism (7) is provided on the inner side of the handle (2); a telescopic spring (6) is installed in the middle of the limiting mechanism (7); an inner gear ring (4) is installed on the outer side of the lower end of the limiting mechanism (7); and a limiting sleeve (9) for limiting is installed on the outer side of the handle (2); The handle (2) comprises a handle body (21), an inner cavity (22) is provided on the inner side of the handle body (21), a slide groove (23) is provided on the bottom end of the handle body (21), the upper end of the limiting mechanism (7) is arranged on the inner side of the inner cavity (22), the limiting mechanism (7) comprises a limiting bent plate (71), the bottom end of the limiting bent plate (71) is fixedly connected with teeth (72), the inner side of the upper end of the limiting bent plate (71) is slidably connected with a guide rod (75), the inner side of the upper end of the limiting bent plate (71) is provided with a square groove (73), one side of the inner side of the square groove (73) is fixedly connected with an inclined block (74), and the lower side of the inclined block (74) is provided with an extrusion mechanism (76); The squeezing mechanism (76) comprises a vertical block (761), and the inner side of the upper end of the vertical block (761) is slidably connected to a limiting rod (762).
2. The anti-corrosion and anti-theft door handle according to claim 1, characterized in that: The inner gear ring (4) is fixedly connected to the inside of the cover plate (1), a plurality of teeth (72) are provided, and the center points of the inner gear ring (4) and the teeth (72) are arranged on the same horizontal plane.
3. The anti-corrosion and anti-theft door handle according to claim 1, characterized in that: The bottom end of the rotating shaft (3) is arranged inside the cover plate (1), one end of the telescopic spring (6) is fixedly connected to the limit bending plate (71), and the other end of the telescopic spring (6) is fixedly connected to the inner wall of the columnar cavity (5), and the columnar cavity (5) is connected to the internal cavity (22).
4. The anti-corrosion and anti-theft door handle according to claim 1, characterized in that: The limiting bent plate (71) is U-shaped, a sliding hole (8) is provided at the bottom of the rotating shaft (3), and the bottom of the limiting bent plate (71) is slidably connected to the rotating shaft (3) through the sliding hole (8).
5. The anti-rust and anti-theft door handle according to claim 1, characterized in that: Two guide rods (75) are provided, and the guide rods (75) are parallel to each other. One end of the guide rod (75) away from the limiting bent plate (71) is fixedly connected to the inner wall of the internal cavity (22).
6. The anti-rust and anti-theft door handle according to claim 1, characterized in that: The cross section of the vertical block (761) is rectangular, the lower end of the vertical block (761) is slidably connected to the handle body (21) through a sliding groove (23), and the bottom of the vertical block (761) is exposed outside the handle body (21).
7. The anti-corrosion and anti-theft door handle according to claim 1, characterized in that: The upper end of the limiting rod (762) is fixedly connected to the inner wall of the internal cavity (22); the upper end of the vertical block (761) is arranged inside the square groove (73); and one side of the upper end of the vertical block (761) is an inclined surface.