A theftproof device for a rolling door

Abstract

The utility model relates to theftproof device technical field, and disclose a theftproof device for roller shutter door. The theftproof device for roller shutter door, including roller shutter door main part, the limiting block at the bottom of roller shutter door main part, the limiting block is used for reinforcing roller shutter door main part, the hammer at the both sides of roller shutter door main part, when movable plate drive the clamping block no longer rest in the top of limiting block, and the positioning strip and another positioning slot activity inlay, make transmission board be fixed in the current position, will two transmission boards all be fixed in the same horizontal line can make two clamping blocks all from the top of limiting block remove, when lifting roller shutter door main part can open, if transmission board is not adjusted when lifting roller shutter door main part, the clamping block will limit the limiting block and go up, and then make roller shutter door main part and base connection more stable, multiple components cooperate not only can improve the stability of roller shutter door main part after closing, can also improve the anti-theft performance of device.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft devices, specifically an anti-theft device for roller shutter doors. Background Technology

[0002] Roller shutters are doors with multiple articulated door panels linked together and rotating up and down around a central roller within a fixed track. Roller shutters are commonly used in shops.

[0003] First, existing roller shutters rely solely on a lock between the bottom of the curtain and the ground for stability after closing. However, due to uneven ground surfaces, numerous gaps are created between the bottom of the curtain and the ground after installation, exposing the lock's location. This not only results in poor stability when closed but also increases the risk of theft.

[0004] Secondly, existing roller shutters only install reinforcement structures to secure the connection between the shutter and the ground when used for security purposes. However, they cannot provide timely warnings when the shutter is forcibly opened, resulting in poor security. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-theft device for roller shutter doors to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an anti-theft device for roller shutter doors, comprising a roller shutter door body; a limiting block located at the bottom of the roller shutter door body, the limiting block being used to reinforce the roller shutter door body; hammers located on both sides of the roller shutter door body, the hammers being used to generate sound for the roller shutter door body moving up and down when the adapter plate is not moved; side rods are movably fitted on both sides of the roller shutter door body, the bottom of the side rods are bolted to a base, a fixing block is bolted to the bottom of the roller shutter door body, and the top of the limiting block is bolted to the bottom of the fixing block. The limiting block has a locking block attached to one side of its top. A movable plate is bolted to the side of the locking block away from the fixed block. An elastic element is bolted to the side of the movable plate away from the locking block. There are two movable plates. A connecting plate is bolted to the side of the two movable plates away from each other. A transmission plate is bolted to the side of the connecting plate away from the movable plate. A positioning strip is bolted to the side of the transmission plate away from the connecting plate. A movable groove is opened on the side of the adapter plate near the main body of the roller shutter door. The hammer is located in the movable groove. An elastic plate is welded to the top of the hammer.

[0007] Preferably, the base has a limiting groove on its top, and the limiting groove has a contraction groove on the side near the movable plate. The end of the elastic element away from the movable plate is bolted into the contraction groove.

[0008] Preferably, both the limiting block and the fixing block are located within the limiting groove, and a through groove is opened on one side of the limiting groove, through which the connecting plate movably passes.

[0009] Preferably, the side rod has a transmission groove, the transmission plate is movably fitted into the transmission groove, and the transmission groove has a positioning groove on the side near the positioning strip, the positioning strip being movably fitted into the positioning groove.

[0010] Preferably, a door panel is movably fitted onto one side of the transmission groove, and a groove is formed on the side of the transmission groove near the door panel, through which the door panel is slidably connected within the transmission groove.

[0011] Preferably, an adjustment plate is welded to the side of the adapter plate near the side rod, and an adjustment bolt is threaded onto the adjustment plate, the adjustment bolt being movable through the side rod.

[0012] Preferably, the top of the elastic plate is bolted to the top of the movable groove, and the side rod has an adjustment groove on the side near the adjustment plate, and the adjustment plate is movably fitted into the adjustment groove.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] First, pull the transmission plate outward, causing it to move the movable plate away from the fixed block via the connecting plate. At this point, the movable plate causes the locking block to no longer press against the top of the limiting block, and the positioning strip engages with another positioning groove, fixing the transmission plate in its current position. Fixing both transmission plates to the same horizontal line will allow both locking blocks to move away from the top of the limiting block. At this point, lifting the roller shutter door body will open it. If the transmission plate is not adjusted before lifting the roller shutter door body, the locking block will restrict the upward movement of the limiting block, thus making the connection between the roller shutter door body and the base more stable. The cooperation of multiple components not only improves the stability of the roller shutter door body after it is closed, but also enhances the anti-theft performance of the device.

[0015] Secondly, if brute force is used to disconnect the roller shutter body from the base, the uneven surface of the roller shutter body will come into contact with the hammer during the rising process and deflect the hammer, causing the hammer to continuously strike the roller shutter body to create a lot of noise as an alarm, thus improving the anti-theft effect of the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the internal components of this utility model;

[0018] Figure 3 This is a structural diagram of the limiting block of this utility model;

[0019] Figure 4 This is a structural diagram of the door panel of this utility model;

[0020] Figure 5 This is a structural diagram of the adapter plate of this utility model.

[0021] The components include: 1. Roller shutter body; 2. Side rod; 3. Base; 4. Fixing block; 5. Limiting block; 6. Limiting groove; 7. Movable plate; 8. Elastic component; 9. Retraction groove; 10. Locking block; 11. Connecting plate; 12. Transmission plate; 13. Positioning strip; 14. Door panel; 15. Transmission groove; 16. Positioning groove; 17. Adapter plate; 18. Movable groove; 19. Elastic plate; 20. Hammer; 21. Adjusting plate; 22. Adjusting bolt; 23. Adjusting groove. 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 Figure 1-5An anti-theft device for a roller shutter door includes a roller shutter door body 1; a limiting block 5 located at the bottom of the roller shutter door body 1 for reinforcing the roller shutter door body 1; hammers 20 located on both sides of the roller shutter door body 1 for producing a sound when the connecting plate 17 is not moved; side rods 2 are movably fitted on both sides of the roller shutter door body 1, and a base 3 is bolted to the bottom of the side rods 2; a fixing block 4 is bolted to the bottom of the roller shutter door body 1; the top of the limiting block 5 is bolted to the bottom of the fixing block 4; a locking block 10 is tightly attached to the top of one side of the limiting block 5; a movable plate 7 is bolted to the side of the locking block 10 away from the fixing block 4; an elastic element 8 is bolted to the side of the movable plate 7 away from the locking block 10; two movable plates 7 are provided; a connecting plate 11 is bolted to the side of the two movable plates 7 away from each other; a transmission plate 12 is bolted to the side of the connecting plate 11 away from the movable plate 7; and a transmission plate 12 is bolted to the side of the transmission plate 12 away from the connecting plate 11. The roller shutter body 1 is connected to a positioning strip 13. The adapter plate 17 has a movable groove 18 on the side near the roller shutter body 1. The hammer 20 is located in the movable groove 18. The top of the hammer 20 is welded with a spring plate 19. Pulling the transmission plate 12 outward causes the transmission plate 12 to drive the movable plate 7 to move away from the fixed block 4 through the connecting plate 11. At this time, the movable plate 7 drives the locking block 10 to no longer abut against the top of the limiting block 5. The positioning strip 13 is movably engaged with another positioning groove 16, so that the transmission plate 12 is fixed in the current position. Fixing both transmission plates 12 on the same horizontal line can make both locking blocks 10 move away from the top of the limiting block 5. At this time, the roller shutter body 1 can be opened by lifting it. If the transmission plate 12 is not adjusted when the roller shutter body 1 is lifted, the locking block 10 will restrict the limiting block 5 from moving upward, thereby making the connection between the roller shutter body 1 and the base 3 more stable. The cooperation of multiple components can not only improve the stability of the roller shutter body 1 after it is closed, but also improve the anti-theft performance of the device.

[0024] Specifically, a limiting groove 6 is opened on the top of the base 3, and a shrinkage groove 9 is opened on the side of the limiting groove 6 near the movable plate 7. The end of the elastic element 8 away from the movable plate 7 is bolted to the shrinkage groove 9.

[0025] Through the above technical solution, the elastic element 8 is used to bring the movable plate 7 back to its original position by its own elasticity when it is not subjected to external force.

[0026] Specifically, both the limiting block 5 and the fixing block 4 are located in the limiting groove 6. A through groove is opened on one side of the limiting groove 6, and the connecting plate 11 moves through the through groove.

[0027] With the above technical solution, the limiting block 5 is a trapezoid that is wider at the top and narrower at the bottom. When the locking block 10 is against the top of the limiting block 5, it will restrict the limiting block 5 from rising. When the limiting block 5 descends, it will squeeze the locking block 10 towards the elastic member 8 through its own inclined side, so that the locking block 10 is embedded in the shrinkage groove 9.

[0028] Specifically, a transmission groove 15 is opened on the side rod 2, and the transmission plate 12 is movably fitted into the transmission groove 15. A positioning groove 16 is opened on the side of the transmission groove 15 near the positioning strip 13, and the positioning strip 13 is movably fitted into the positioning groove 16.

[0029] Through the above technical solution, the positioning strip 13 is made of rubber, and two positioning grooves 16 are opened in the transmission groove 15. The two positioning grooves 16 are not located on the same horizontal plane.

[0030] Specifically, a door panel 14 is movably fitted into one side of the transmission groove 15, and a groove is opened on the side of the transmission groove 15 near the door panel 14. The door panel 14 is slidably connected to the transmission groove 15 through the groove.

[0031] Through the above technical solution, the door panel 14 is used to hide the transmission plate 12 inside the side rod 2.

[0032] Specifically, an adjustment plate 21 is welded to the side of the adapter plate 17 near the side rod 2, and an adjustment bolt 22 is threaded onto the adjustment plate 21, which moves through the side rod 2.

[0033] Through the above technical solution, the rotation of the adjusting bolt 22 will drive the adjusting plate 21, which is threaded to it, to move within the adjusting groove 23.

[0034] Specifically, the top of the elastic plate 19 is bolted to the top of the movable groove 18, and the side rod 2 has an adjustment groove 23 on the side near the adjustment plate 21, and the adjustment plate 21 is movably fitted into the adjustment groove 23.

[0035] Through the above technical solution, the elastic plate 19 is made of elastic metal material. When the hammer 20 comes into contact with the roller shutter body 1, the elastic plate 19 will move away from the roller shutter body 1. When the hammer 20 is not subjected to external force, the elastic plate 19 will bring it back to its original position through its own elasticity.

[0036] In use, move the door panel 14 upwards to expose the transmission plate 12 in the transmission groove 15. Pull the transmission plate 12 outwards, causing it to drive the movable plate 7 away from the fixed block 4 via the connecting plate 11. As the transmission plate 12 moves, the positioning strip 13 will move out of the currently engaged positioning groove 16. At the same time, the movable plate 7 will compress the elastic element 8 in the contraction groove 9. At this time, the movable plate 7 will cause the locking block 10 to no longer abut against the top of the limiting block 5, and the positioning strip 13 will be movably engaged with another positioning groove 16, fixing the transmission plate 12 in its current position. Fixing both transmission plates 12 on the same horizontal line will allow both locking blocks 10 to move out of the limiting block. 5. Remove the top and rotate the adjusting bolt 22 to move the adjusting plate 21, which is threaded to it, within the adjusting groove 23. This moves the adapter plate 17 away from the main body of the roller shutter door 1. At this point, the main body of the roller shutter door 1 can be opened by lifting it. If the transmission plate 12 and the adapter plate 17 are not adjusted, the roller shutter door 1 will be lifted, and the locking block 10 will restrict the movement of the limiting block 5, thereby making the connection between the main body of the roller shutter door 1 and the base 3 more stable. If brute force is used to disconnect the main body of the roller shutter door 1 from the base 3, the uneven surface of the main body of the roller shutter door 1 will come into contact with the hammer 20 during the rising process and move the hammer 20, causing the hammer 20 to continuously strike the main body of the roller shutter door 1, creating a lot of noise as a warning.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is 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. An anti-theft device for roller shutter doors, characterized in that: include: Roller shutter body (1); A limiting block (5) is located at the bottom of the main body (1) of the roller shutter door, and the limiting block (5) is used to reinforce the main body (1) of the roller shutter door; Hammers (20) located on both sides of the roller shutter body (1) are used to make a sound for the roller shutter body (1) moving up and down when the adapter plate (17) is not moved. The roller shutter body (1) has side rods (2) movably fitted on both sides. The bottom of the side rods (2) is bolted to a base (3). The bottom of the roller shutter body (1) is bolted to a fixing block (4). The top of the limiting block (5) is bolted to the bottom of the fixing block (4). A locking block (10) is tightly attached to the top of one side of the limiting block (5). A movable plate (7) is bolted to the side of the locking block (10) away from the fixing block (4). An elastic element (8) is bolted to the side of the movable plate (7) away from the locking block (10). There are two plates (7). The two movable plates (7) are bolted to each other on the side away from each other. The connecting plate (11) is bolted to the side away from the movable plate (7) and the transmission plate (12) is bolted to the side away from the connecting plate (11). The transmission plate (12) is bolted to the side away from the connecting plate (11) and the positioning strip (13) is bolted to the side away from the connecting plate (11). The adapter plate (17) has a movable groove (18) on the side close to the roller shutter door body (1). The hammer (20) is located in the movable groove (18) and the top of the hammer (20) is welded with an elastic plate (19).

2. The anti-theft device for roller shutter doors according to claim 1, characterized in that: The base (3) has a limiting groove (6) on its top. The limiting groove (6) has a shrinkage groove (9) on the side of the limiting groove (6) near the movable plate (7). The end of the elastic member (8) away from the movable plate (7) is bolted to the shrinkage groove (9).

3. The anti-theft device for roller shutter doors according to claim 2, characterized in that: The limiting block (5) and the fixing block (4) are both located in the limiting groove (6). A through groove is opened on one side of the limiting groove (6), and the connecting plate (11) moves through the through groove.

4. The anti-theft device for roller shutter doors according to claim 1, characterized in that: The side rod (2) has a transmission groove (15), the transmission plate (12) is movably fitted into the transmission groove (15), and the transmission groove (15) has a positioning groove (16) on the side near the positioning strip (13), the positioning strip (13) is movably fitted into the positioning groove (16).

5. The anti-theft device for roller shutter doors according to claim 4, characterized in that: A door panel (14) is movably fitted on one side of the transmission groove (15). A groove is opened on the side of the transmission groove (15) near the door panel (14). The door panel (14) is slidably connected to the transmission groove (15) through the groove.

6. The anti-theft device for roller shutter doors according to claim 1, characterized in that: An adjusting plate (21) is welded to the side of the adapter plate (17) near the side rod (2). An adjusting bolt (22) is threaded onto the adjusting plate (21) and the adjusting bolt (22) moves through the side rod (2).

7. The anti-theft device for roller shutter doors according to claim 6, characterized in that: The top of the elastic plate (19) is bolted to the top of the movable groove (18), and the side rod (2) has an adjustment groove (23) on the side near the adjustment plate (21), and the adjustment plate (21) is movably fitted into the adjustment groove (23).

Images