Door plate interlocking device with anti-pushing function

By designing a door panel interlocking device with anti-pry function, a combination of anti-pry mechanism and locking mechanism is used to achieve double locking of the door panel, which solves the safety problem of existing door locks when the door is forcibly pulled, and improves the safety and convenience of the door panel.

CN224078872UActive Publication Date: 2026-04-03FOSHAN YONGDA ELEVATOR PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing door locks are easily broken when the door is forcibly pulled, lacking effective security measures and failing to effectively protect the safety of people and property.

Method used

A door panel interlocking device with anti-pry function was designed, including an anti-pry mechanism and a locking mechanism. Through the cooperation of components such as connecting column, spring, locking block, sliding rod, threaded rod and timing belt, the door panel can be double locked and fixed.

Benefits of technology

It features dual locking to enhance door security during violent attacks, preventing intruders from breaking in, and allows for easy opening and closing after the danger has passed. The structure is simple, reasonable, and easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a door plate interlocking device with an anti-pushing function, which relates to the technical field of door plates and comprises a door frame, an anti-pushing mechanism and a clamping mechanism, a door frame groove is arranged in the door frame, a door plate is hinged in the door frame groove through a hinge, the anti-pushing mechanism comprises a pair of locking blocks, and first mounting grooves are arranged at the upper end and the lower end of the door frame. A plurality of connecting columns are mounted on one side of the interior of the first mounting groove, a moving plate is slidably mounted on one side of the first mounting groove, the locking block is mounted on one side of the moving plate, sliding rods are connected to the two sides of the exterior of the door frame, moving rods are slidably mounted outside the sliding rods, the clamping mechanism comprises a rack, and a second mounting groove is formed in a second fixing block. A through hole is formed in one side of the second fixing block, and the rack is installed in the through hole in a sliding mode. The door plate locking device is simple and reasonable in structure, novel in design and easy and convenient to operate, double locking is effectively carried out on the door plate, the use safety of the door plate is improved, and high practical value is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of door panel technology, and more specifically, it relates to a door panel interlocking device with anti-pry function. Background Technology

[0002] In today's society, safety is receiving increasing attention. Whether in homes, commercial spaces, or industrial facilities, effective security measures are essential to protect people and property. As a crucial component of building entrances and exits, the safety of door panels and their interlocking mechanisms directly impacts the overall security of the premises.

[0003] Based on the above, the inventor has discovered the following problems: current door locks are simply interlocked, and when criminals forcibly pull the door, the locks will separate, and there are no effective security measures to protect the safety of people and property.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a door interlock device with anti-pry function, in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a door panel interlocking device with anti-pry function to solve the problems in the current background technology.

[0006] The purpose and effect of this door interlock device with anti-pry function are achieved by the following specific technical means:

[0007] A door panel interlocking device with anti-pry function includes a door frame, an anti-pry mechanism, and a locking mechanism. The door frame has a door frame groove inside, and a door panel is hinged inside the door frame groove via a hinge. The anti-pry mechanism includes a pair of locking blocks, and the upper and lower ends of the door frame are provided with first mounting grooves. Several connecting posts are installed on one side of the inner side of the first mounting groove, and a first spring is provided on the outside of the connecting posts. A movable plate is slidably installed on one side of the first mounting groove, and the locking blocks are installed on one side of the movable plate. The door panel has a groove inside, and the locking blocks cooperate with the groove. Sliding rods are connected to the outer sides of the door frame, and a moving rod is slidably installed on the outside of the sliding rods. The locking mechanism includes a rack, and a first fixing block is installed on one side of the outer side of the door panel. A second fixing block is installed on the outer side of the door frame near the first fixing block, and a second mounting groove is provided inside the second fixing block. A rotating rod is connected inside the second mounting groove, and a gear is sleeved on the outside of the rotating rod. A through hole is provided on one side of the second fixing block, and the rack is slidably installed inside the through hole.

[0008] Furthermore, a stop block is installed on the side of the movable plate near the movable rod, and one side of the movable rod is in contact with one side of the stop block. A second spring is externally connected to the slide rod, and one end of the second spring is connected to one side of the movable rod.

[0009] Furthermore, threaded rods are connected to both sides of the inside of the groove, and a pair of hinge blocks are threaded to the outside of each threaded rod. An adjusting rod is hinged to one side of each hinge block, and push plates are slidably installed on both sides of the inside of the groove. One end of the adjusting rod is hinged to one side of the push plate.

[0010] Furthermore, each of the two threaded rods has a timing pulley at one end, and a timing belt meshes between the two timing pulleys. A rotating shaft is inserted into one side of the bottom of the door panel, and one end of the rotating shaft passes through the door panel and is equipped with a drive bevel gear.

[0011] Furthermore, one of the threaded rods is provided with a driven bevel gear on its exterior, and the driving bevel gear meshes with the driven bevel gear. One end of the rotating shaft is equipped with a first rotating handle on the exterior of the door panel.

[0012] Furthermore, a worm gear is connected to one side of the interior of the second mounting groove, and one end of the worm gear passes through the second fixing block and is fitted with a second rotating handle.

[0013] Furthermore, a worm gear is fitted on the outer side of the rotating rod, and the worm and the worm gear mesh with each other. A slot is provided on the inner side of the first fixing block. The gear and the rack mesh with each other, and one end of the rack passes through the through hole and engages with the slot.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This type of door panel interlocking device with anti-pry function works by cooperating with a connecting column, a first spring, a moving plate, a locking block, a stop block, a sliding rod, a second spring, a moving rod, a threaded rod, a synchronous wheel, and a push block. When an unauthorized person forcibly pulls the door panel, they may damage the door lock. When the door shakes within the door frame groove, it will press against a pair of moving rods, causing the moving rods to move on the sliding rod. This separates the moving rods from the stop block, allowing the moving plate and locking block to move. When they move into the groove, the locking block engages with the groove, providing double locking to the door panel and preventing unauthorized entry. After the danger has passed, the user can turn the first rotary handle from inside the room. The first rotating handle drives the shaft and the driving bevel gear to rotate, which in turn drives one of the threaded rods to rotate. With the help of the synchronous pulley and synchronous belt, a pair of threaded rods rotate simultaneously. The threaded rods have a set of opposite threads on their outer surfaces. When the threaded rods rotate, they drive a pair of hinge blocks to move closer to each other on the threaded rods, adjusting the angle of a pair of adjusting rods. This causes the push plate to move outward, pushing the locking block and the stop block to one side. With the help of the second spring, the moving rod returns to its original position and fits against the stop block to fix the locking block. Then, the first rotating handle is rotated in the opposite direction to retract the pair of push plates into the groove, saving space and not affecting the opening and closing of the door panel.

[0016] 2. This door panel interlocking device with anti-pry function utilizes a second mounting groove, a worm gear, a second rotating handle, a rotating rod, a worm wheel, a gear, a rack, and a slot. When it is necessary to interlock the door panel and the door frame, rotating the second rotating handle causes the worm gear to rotate, which in turn causes the rotating rod and gear to rotate, thereby moving the rack from the through hole and inserting it into the slot to fix the door panel. This utility model has a simple and reasonable structure, novel design, and simple and convenient operation. It effectively provides double locking for the door panel, increases the safety of the door panel, and has high practical value. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 This is a three-dimensional unfolded schematic diagram of this utility model.

[0019] Figure 3 This is a three-dimensional schematic diagram of the interior of the second fixing block of this utility model.

[0020] Figure 4 This is a partial side sectional view of the present invention.

[0021] Figure 5 This is the utility model Figure 4 An enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1001, Door frame; 1002, Door frame groove; 1003, Door panel; 1004, First fixing block; 1005, Second fixing block; 2001, First mounting groove; 2002, Connecting post; 2003, First spring; 2004, Moving plate; 2005, Lock block; 2006, Abutment block; 2007, Slide rod; 2008, Second spring; 2009, Moving rod; 2010, Groove; 2011, Threaded rod; 2012, Hinge block; 2 013, Synchronous pulley; 2014, Synchronous belt; 2015, Rotating shaft; 2016, First rotating handle; 2017, Driving bevel gear; 2018, Driven bevel gear; 2019, Adjusting rod; 2020, Push plate; 3001, Second mounting slot; 3002, Worm gear; 3003, Second rotating handle; 3004, Rotating rod; 3005, Worm wheel; 3006, Gear; 3007, Rack; 3008, Through hole; 3009, Slot. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 5 As shown:

[0027] This utility model provides a door panel interlocking device with anti-pry function, including a door frame 1001, an anti-pry mechanism, and a locking mechanism. The door frame 1001 has a door frame groove 1002 inside, and a door panel 1003 is hinged to the inside of the door frame groove 1002 via hinges. The anti-pry mechanism includes a pair of locking blocks 2005, and both the upper and lower ends of the door frame 1001 have first mounting grooves 2001. Several connecting posts 2002 are installed on one side of the inside of the first mounting groove 2001, and a first spring 2003 is provided on the outside of each connecting post 2002. A movable plate 2004 is slidably installed on one side of the first mounting groove 2001, and the locking blocks 2005 are installed on one side of the movable plate 2004. The door panel 1003 has a groove 2010 inside, and the locking blocks 2005 are... 05 and groove 2010 cooperate with each other. The outer sides of the door frame 1001 are connected to the sliding rods 2007, and the sliding rods 2007 are slidably installed with the moving rods 2009. The engaging mechanism includes a rack 3007. The outer side of the door panel 1003 is equipped with a first fixing block 1004. The outer side of the door frame 1001 is equipped with a second fixing block 1005 near the first fixing block 1004. The second fixing block 1005 is provided with a second mounting groove 3001 inside. The second mounting groove 3001 is connected to a rotating rod 3004 inside. The rotating rod 3004 is sleeved with a gear 3006 outside. The second fixing block 1005 is provided with a through hole 3008 on one side. The rack 3007 is slidably installed inside the through hole 3008.

[0028] The movable plate 2004 has a stop block 2006 installed on the side near the movable rod 2009, and one side of the movable rod 2009 is in contact with one side of the stop block 2006. The slide rod 2007 is externally connected to a second spring 2008, and one end of the second spring 2008 is connected to one side of the movable rod 2009. By installing the movable rod 2009, when the door panel 1003 is in normal use, the movable rod 2009 will fix the lock block 2005, and the door panel 1003 does not need to be double locked.

[0029] The groove 2010 has threaded rods 2011 connected to both sides of its interior, and a pair of hinge blocks 2012 are threaded to the outside of each threaded rod 2011. An adjusting rod 2019 is hinged to one side of each hinge block 2012. A push plate 2020 is slidably installed on both sides of the groove 2010. One end of the adjusting rod 2019 is hinged to one side of the push plate 2020. With the push plate 2020 installed, when the locking block 2005 engages with the groove 2010, the push plate 2020 can push the locking block 2005 out of the groove 2010 after the emergency is resolved, so that the door panel 1003 can continue to open and close.

[0030] Among them, a pair of threaded rods 2011 are provided with a synchronous pulley 2013 at one end of each pair of synchronous pulleys 2013, and a synchronous belt 2014 meshes between the pair of synchronous pulleys 2013. A rotating shaft 2015 is inserted into one side of the bottom of the door panel 1003, and one end of the rotating shaft 2015 passes through the door panel 1003 and is equipped with a drive bevel gear 2017.

[0031] One of the threaded rods 2011 has a driven bevel gear 2018 on its outside, and the driving bevel gear 2017 meshes with the driven bevel gear 2018. One end of the rotating shaft 2015 is equipped with a first rotating handle 2016 on the outside of the door panel 1003.

[0032] The second mounting groove 3001 has a worm gear 3002 connected to one side of its interior, and one end of the worm gear 3002 passes through the second fixing block 1005 and is equipped with a second rotating handle 3003.

[0033] Among them, a worm gear 3005 is sleeved on the outer side of the rotating rod 3004, and the worm 3002 and the worm gear 3005 mesh with each other. A slot 3009 is provided on the inner side of the first fixing block 1004. The gear 3006 and the rack 3007 mesh with each other, and one end of the rack 3007 passes through the through hole 3008 and engages with the slot 3009.

[0034] The specific usage and function of this embodiment are as follows:

[0035] When using this product, first, check whether the connections are secure. After ensuring they are secure, when it is necessary to interlock the door panel 1003 and the door frame 1001, turn the second rotating handle 3003 to rotate the worm gear 3002, which in turn rotates the worm wheel 3005, causing the rotating rod 3004 and gear 3006 to rotate. This moves the rack 3007 from the through hole 3008 and inserts it into the slot 3009, thus securing the door panel 1003. If any unauthorized personnel forcibly pull the door panel 1001, the door will remain secure. At 03, sometimes the door lock may be damaged. When the door shakes within the door frame groove 1002, it will press against a pair of moving rods 2009, causing them to move on the slide rod 2007. This separates the moving rods 2009 from the stop block 2006, allowing the moving plate 2004 and the locking block 2005 to move. When they move into the groove 2010, the locking block 2005 engages with the groove 2010, providing a double lock to the door panel 1003, preventing intruders from entering. When danger... After contact, the user can rotate the first rotating handle 2016 indoors, causing the first rotating handle 2016 to drive the rotating shaft 2015 and the driving bevel gear 2017 to rotate, thereby causing the driven bevel gear 2018 to drive one of the threaded rods 2011 to rotate. In conjunction with the synchronous pulley 2013 and the synchronous belt 2014, a pair of threaded rods 2011 rotate simultaneously. The threaded rods 2011 have a set of opposite threads on their outer surfaces. When the threaded rods 2011 rotate, they drive a pair of hinge blocks 2012 to rotate within the threaded shaft. The push rods 2011 are brought closer together, and the angle of the pair of adjusting rods 2019 is adjusted, causing the push plate 2020 to move outward. This pushes the locking block 2005 and the stop block 2006 to one side. With the cooperation of the second spring 2008, the moving rod 2009 returns to its original position and fits against the stop block 2006 to fix the locking block 2005. Then, the first rotating handle 2016 is rotated in the opposite direction to retract the pair of push plates 2020 into the groove 2010, saving space and not affecting the opening and closing of the door panel 1003.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A door interlock device with anti-pry function, characterized in that: The device includes a door frame (1001), an anti-pry mechanism, and a locking mechanism. The door frame (1001) has a door frame groove (1002) inside, and a door panel (1003) is hinged to the inside of the door frame groove (1002) via hinges. The anti-pry mechanism includes a pair of locking blocks (2005). The door frame (1001) has first mounting grooves (2001) at both its upper and lower ends. Several connecting posts (2002) are installed on one side of the first mounting groove (2001), and a first spring (2003) is provided on the outside of each connecting post (2002). A movable plate (2004) is slidably installed on one side of the first mounting groove (2001), and the locking blocks (2005) are installed on one side of the movable plate (2004). The door panel (1003) has a groove (2010) inside, and the locking blocks (2005) and the groove (2010) cooperate with each other. The door frame (1001) is connected to sliding rods (2007) on both sides of its exterior, and a moving rod (2009) is slidably installed on the exterior of the sliding rods (2007). The engaging mechanism includes a rack (3007), and a first fixing block (1004) is installed on one side of the exterior of the door panel (1003). A second fixing block (1005) is installed on the exterior of the door frame (1001) near the first fixing block (1004). The interior of the second fixing block (1005) is provided with a second mounting groove (3001). A rotating rod (3004) is connected inside the second mounting groove (3001), and a gear (3006) is sleeved on the exterior of the rotating rod (3004). A through hole (3008) is provided on one side of the second fixing block (1005), and the rack (3007) is slidably installed inside the through hole (3008).

2. The door interlock device with anti-pry function as described in claim 1, characterized in that: The movable plate (2004) has a stop block (2006) installed on the side near the movable rod (2009), and one side of the movable rod (2009) is in contact with one side of the stop block (2006). The slide rod (2007) is externally connected to a second spring (2008), and one end of the second spring (2008) is connected to one side of the movable rod (2009).

3. The door interlock device with anti-pry function as described in claim 1, characterized in that: Both sides of the groove (2010) are connected to threaded rods (2011), and both sides of the threaded rods (2011) are threadedly connected to a pair of hinge blocks (2012). One side of the hinge block (2012) is hinged to an adjusting rod (2019), and both sides of the groove (2010) are slidably installed with push plates (2020). One end of the adjusting rod (2019) is hinged to one side of the push plate (2020).

4. The door interlock device with anti-pry function as described in claim 3, characterized in that: Each of the two threaded rods (2011) has a synchronous pulley (2013) at one end, and a synchronous belt (2014) meshes between the two synchronous pulleys (2013). A rotating shaft (2015) is inserted into one side of the bottom of the door panel (1003), and one end of the rotating shaft (2015) passes through the door panel (1003) and is equipped with a drive bevel gear (2017).

5. The door interlock device with anti-pry function as described in claim 4, characterized in that: One of the threaded rods (2011) is provided with a driven bevel gear (2018) on its outside, and the driving bevel gear (2017) and the driven bevel gear (2018) mesh with each other. One end of the rotating shaft (2015) is provided with a first rotating handle (2016) on the outside of the door panel (1003).

6. The door interlock device with anti-pry function as described in claim 1, characterized in that: A worm gear (3002) is connected to one side of the interior of the second mounting groove (3001), and one end of the worm gear (3002) passes through the second fixing block (1005) and is equipped with a second rotating handle (3003).

7. The door interlock device with anti-pry function as described in claim 6, characterized in that: A worm gear (3005) is sleeved on the outer side of the rotating rod (3004), and the worm (3002) meshes with the worm gear (3005). A slot (3009) is provided on the inner side of the first fixing block (1004). The gear (3006) meshes with the rack (3007), and one end of the rack (3007) passes through the through hole (3008) and engages with the slot (3009).