Anti-theft door stopper
By designing the snap-on plate and connecting seat structure of the anti-theft door stopper, the problems of complex installation and poor applicability of existing anti-theft limiters are solved, realizing a fast, simple, and multi-purpose anti-theft function.
Patent Information
- Application Number
- CN202423144108.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing anti-theft limiters need to be fixedly installed inside the door, which is difficult to install, inconvenient to operate, cannot be used anytime and anywhere in unfamiliar places, and is not suitable for all door styles.
An anti-theft door stopper was designed, including a snap-fit plate and a connecting seat. The snap-fit hook can be directly hung on the lock tongue hole. The position of the blocking block can be adjusted by rotating the connecting seat and the adjusting wheel, so as to achieve quick installation and adapt to different door thicknesses and styles.
It enables quick installation without additional tools, is suitable for various door types, is easy to operate, is available anytime and anywhere, has strong adaptability, and provides stable blocking effect.
Smart Images

Figure CN223536182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware appliances technology, and in particular to an anti-theft door stopper. Background Technology
[0002] Common door security limiters on the market include anti-theft chains, anti-theft latches, and mechanical fixed door stoppers. Their disadvantages are twofold: firstly, anti-theft chains and latches require fixed installation inside the door, which is difficult and inconvenient to operate, resulting in poor usability. They cannot be used immediately in unfamiliar locations, making them unreliable anytime, anywhere. Secondly, due to door design limitations, some doors cannot accommodate anti-theft chains and latches. Utility Model Content
[0003] Therefore, the purpose of this utility model is to overcome the shortcomings of the prior art and provide an anti-theft door stop.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] An anti-theft door stopper includes a snap-fit plate and a connecting base;
[0006] One end of the snap-fit plate is provided with a hook for hooking the latch hole of the door frame. The other end of the snap-fit plate is rotatably connected to the connecting seat via a pivot. The connecting seat is provided with a blocking block and an adjusting wheel. The blocking block is slidably connected to the connecting seat and is connected with an adjusting screw. The adjusting screw passes through the connecting seat and is threadedly connected to the adjusting wheel. The adjusting wheel is rotatably mounted on the connecting seat. By rotating the adjusting wheel, the blocking block can slide and extend relative to the connecting seat.
[0007] As can be seen from the above solution, the anti-theft door blocker of this embodiment does not require any additional tools during installation. The hook of its snap-fit plate can be directly hung on the lock tongue hole for fixation. After fixation, simply rotate the connecting base and operate the adjusting wheel to position the blocking block in a suitable position to block the door. The operation is very convenient and quick, and it can be used anytime and anywhere. It is highly practical, easy to install, and can be used by anyone. Furthermore, the position of the blocking block is adjustable, which can adapt to more door thicknesses and styles, making it highly versatile.
[0008] In one embodiment, the blocking block is provided with an anti-slip pad for contacting the door.
[0009] In one embodiment, the blocking block is provided with two guide posts, and the connecting seat is provided with guide holes that slide in the guide posts. The axial direction of the guide posts is parallel to the axial direction of the adjusting screw.
[0010] In one embodiment, the two guide posts are respectively arranged on opposite sides of the adjusting screw.
[0011] In one embodiment, a guide post is provided inside the guide hole, and a guide hole adapted to the guide post is provided on the side of the guide post facing the guide hole.
[0012] In one embodiment, the connecting seat is provided with an adjustment groove for accommodating the adjustment wheel, the adjustment wheel is rotatably disposed in the adjustment groove, and a portion of the circumferential surface of the adjustment wheel is exposed from the adjustment groove.
[0013] In one embodiment, the circumferential surface of the adjusting wheel is provided with a plurality of anti-slip protrusions.
[0014] In one embodiment, the anti-slip pad is a silicone anti-slip pad.
[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the anti-theft door stopper (when the connecting seat is in the blocking position) in an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the anti-theft door stop (connector in the non-blocking position) in an embodiment of this application;
[0018] Figure 3 This is a schematic diagram of the card plate structure in an embodiment of this application;
[0019] Figure 4 This is a cross-sectional schematic diagram of the anti-theft door stopper (when the connecting seat is in the non-blocking position) in an embodiment of this application;
[0020] Figure 5 This is another cross-sectional view of the anti-theft door stopper (when the connecting seat is in the non-blocking position) in the embodiments of this application;
[0021] Figure 6 This is a structural schematic diagram of the anti-theft door stopper from another perspective in the embodiments of this application;
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Snap-on plate; 11. Snap-on hook; 2. Connecting seat; 22. Guide hole; 23. Guide post; 24. Adjustment groove; 3. Rotating shaft; 4. Blocking block; 41. Adjusting screw; 42. Anti-slip pad; 43. Guide post; 44. Guide hole; 5. Adjusting wheel. Detailed Implementation
[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this utility model.
[0026] Please see Figures 1 to 6 This embodiment provides an anti-theft door stopper, which can be applied to various occasions. As long as there is a door frame with a lock tongue hole, the anti-theft door stopper can be used. Specifically, the anti-theft door stopper in this embodiment includes a snap-fit plate 1 and a connecting seat 2.
[0027] The latching plate 1 has a hook 11 at one end for engaging the latch hole of the door frame. The other end of the latching plate 1 is rotatably connected to the connecting seat 2 via a pivot 3. The connecting seat 2 can rotate relative to the latching plate 1 to a blocking position and a non-blocking position. The connecting seat 2 is equipped with a blocking block 4 and an adjusting wheel 5. The blocking block 4 is used to block the movement of the door. The blocking block 4 is slidably connected to the connecting seat 2 and is connected to an adjusting screw 41. The adjusting screw 41 passes through the connecting seat 2 and is threadedly connected to the adjusting wheel 5. The blocking block 4 can be displaced axially relative to the connecting seat 2 along the adjusting screw 41. The adjusting wheel 5 is rotatably mounted on the connecting seat 2. By rotating the adjusting wheel 5, the blocking block 4 can slide and extend relative to the connecting seat 2, thereby abutting against the door to be blocked, achieving the blocking effect.
[0028] The usage process of the anti-theft door stopper in this embodiment is as follows:
[0029] First, rotate the connecting seat 2 to the non-blocking position. Then, insert the hook 11 at one end of the snap plate 1 into the latch hole of the door frame for initial positioning. Next, close the door so that part of the snap plate 1 is located in the gap between the door and the door frame, and the snap plate 1 is fully positioned. Then, rotate the connecting seat 2 to the blocking position. Finally, operate the adjusting wheel 5 so that the blocking block 4 moves out from the connecting seat 2 and abuts against the door to block the door.
[0030] As can be seen from the above solution, the anti-theft door blocker of this embodiment does not require any additional tools during installation. The hook 11 of its snap-fit plate 1 can be directly hung on the lock tongue hole for fixation. After fixation, the connecting base 2 can be rotated and the adjusting wheel 5 can be operated to place the blocking block 4 in a suitable position to block the door. The operation is very convenient and quick, and it can be used anytime and anywhere. It is highly practical, easy to install, and can be used by everyone. In addition, the position of the blocking block 4 is adjustable, which can adapt to more thicknesses and more styles of door bodies, making it highly versatile.
[0031] Preferably, in this embodiment, the blocking block 4 is provided with an anti-slip pad 42 for contacting the door body. By providing the anti-slip pad 42, the friction can be increased, preventing relative sliding between the blocking block 4 and the door body, thereby improving the blocking ability of the blocking block 4. Preferably, the anti-slip pad 42 is a silicone anti-slip pad 42, which has excellent anti-slip performance.
[0032] To make the movement of the blocking block 4 more stable, preferably, the blocking block 4 is provided with two guide posts 43, and the connecting seat 2 is provided with guide holes 22 that slide with the guide posts 43. The axial direction of the guide posts 43 is parallel to the axial direction of the adjusting screw 41. By providing the guiding cooperation of the two guide posts 43 and the two guide holes 22, the movement of the blocking block 4 can be made more stable, so that the blocking block 4 can be stably attached to the door.
[0033] Specifically, in this embodiment, the two guide posts 43 are respectively arranged on opposite sides of the adjusting screw 41. This makes the overall structure more stable and allows for more stable movement.
[0034] Furthermore, a guide post 23 is provided inside the guide hole 22, and a guide hole 44 adapted to the guide post 23 is provided on the side of the guide post 43 facing the guide hole 22. By adding the cooperation of the guide post 23 and the guide hole 44, the stability of the blocking block 4 when moving is further improved.
[0035] Specifically, in this embodiment, the connecting seat 2 is provided with an adjustment groove 24 to accommodate the adjustment wheel 5. The adjustment wheel 5 is rotatably disposed in the adjustment groove 24, and a portion of the circumferential surface of the adjustment wheel 5 is exposed from the adjustment groove 24. The adjustment screw 41 passes through the adjustment groove 24 and is inserted into the adjustment wheel 5, forming a threaded connection with the adjustment wheel 5. This arrangement makes the arrangement of the adjustment groove 24 more reasonable and its use more convenient.
[0036] To improve the operability of the adjusting wheel 5, preferably, the circumferential surface of the adjusting wheel 5 is provided with a number of anti-slip protrusions.
[0037] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A burglarproof door stop, characterized in that, Includes a snap-on plate and a connector; One end of the snap-fit plate is provided with a hook for hooking the latch hole of the door frame. The other end of the snap-fit plate is rotatably connected to the connecting seat via a pivot. The connecting seat is provided with a blocking block and an adjusting wheel. The blocking block is slidably connected to the connecting seat and is connected with an adjusting screw. The adjusting screw passes through the connecting seat and is threadedly connected to the adjusting wheel. The adjusting wheel is rotatably mounted on the connecting seat. By rotating the adjusting wheel, the blocking block can slide and extend relative to the connecting seat.
2. The anti-theft door stopper according to claim 1, characterized in that: The blocking block is equipped with an anti-slip pad for contact with the door.
3. The anti-theft door stopper according to claim 1, characterized in that: The blocking block is provided with two guide posts, and the connecting seat is provided with guide holes that slide in the guide posts. The axial direction of the guide posts is parallel to the axial direction of the adjusting screw.
4. The anti-theft door stopper according to claim 3, characterized in that: The two guide posts are respectively arranged on opposite sides of the adjusting screw.
5. The anti-theft door stopper according to claim 3, characterized in that: A guide post is provided inside the guide hole, and a guide hole adapted to the guide post is provided on the side of the guide post facing the guide hole.
6. The anti-theft door stopper according to any one of claims 1-5, characterized in that: The connecting seat is provided with an adjustment groove for accommodating the adjustment wheel. The adjustment wheel is rotatably disposed in the adjustment groove, and a portion of the circumferential surface of the adjustment wheel is exposed from the adjustment groove.
7. The anti-theft door stopper according to claim 6, characterized in that: The circumferential surface of the adjusting wheel is provided with several anti-slip protrusions.
8. The anti-theft door stopper according to claim 2, characterized in that: The anti-slip mat is a silicone anti-slip mat.