Shield door sealing structure
By using a worm gear and rack structure, along with a clamping block design, the problem of poor stability in traditional shielded door panels is solved, achieving a more stable connection and sealing effect, and improving the safety of the shielded door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional double-door screen doors are fixed together by a single lock cylinder, which has poor stability. This can cause shaking, affecting the sealing performance, and may separate in dangerous situations, leading to seal failure.
The door panel connection is enhanced by using a worm gear and rack and pinion structure for self-locking and limiting fixation, combined with the cooperation of clamping blocks and locking blocks, and a sealing effect is achieved through sealing strips.
It improves the stability of the door panel connection, prevents shaking, ensures airtightness, prevents outside air from entering, and enhances the isolation effect of the shielded door.
Smart Images
Figure CN223984414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shielded door sealing technology, specifically a shielded door sealing structure. Background Technology
[0002] Platform screen doors typically consist of a door frame, door panels, and hardware. They can be divided into single-door and double-door types. The door panels are mostly made of steel plate or stainless steel. In traditional double-door platform screen doors, the two door panels are only connected and limited by a single lock cylinder, which is not very sturdy and makes them prone to shaking. This can affect the sealing performance of the platform screen door. In actual dangerous situations, the platform screen door may be impacted, causing the two door panels to separate or shake directly, allowing outside air to enter the room and causing the platform screen door to lose its isolation effect. Utility Model Content
[0003] To address the issue that existing shielded door systems with sealing structures suffer from poor stability when fixed between two door panels by a single lock cylinder during actual use, making them prone to shaking and affecting their sealing performance, the purpose of this invention is to provide a sealing structure for shielded door systems.
[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a shielded door sealing structure, including an outer frame, a plurality of symmetrically distributed hinges installed on one side of the outer frame, two symmetrically distributed door leaves provided in the middle of the outer frame, one side of each of the plurality of hinges being fixedly installed on one side of the door leaves, a worm gear being rotatably installed in the middle of each of the two door leaves, a worm being provided on the upper part of each of the two worm gears, and the two worms being rotatably installed in the middle of the door leaves, the two worms being meshed with the worm gears, and a second gear being rotatably installed in the middle of one side of each of the two worm gears. By setting the worm gears and worms, the worm gear and worm structure has a self-locking function, thereby limiting the connection of the door leaves 2. For greater stability during fixing, a screw is rotatably installed in the middle of each of the two door panels. A limit rod is threaded onto the outer surface of each of the two screws. A first gear is fixedly installed at one end of each of the two screws, and both first gears mesh with a second gear. By setting the first gear and the second gear, where the second gear is larger than the first gear, it is easier and faster to rotate the screws by turning the handle. An L-shaped first sealing strip is fixedly installed on the outer side of each of the two door panels. One side of each first sealing strip is in contact with one side of the outer frame. A second sealing strip is fixedly installed on the opposite side of each of the two door panels, and the two second sealing strips are in contact with each other.
[0005] Preferably, a second fixing plate is fixedly installed on one side of the top of each of the two door leaves, and a locking block is fixedly installed on one side of each of the two second fixing plates. Two symmetrically distributed first fixing plates are fixedly installed on the upper part of the outer frame. Two clamping blocks that cooperate with each other are rotatably installed in the middle of each of the two first fixing plates. The two locking blocks and clamping blocks cooperate with each other. By setting the locking block 34 and the clamping block 32, the clamping block 32 clamps and limits the locking block 34 in the middle, thereby limiting and fixing the door leaf 2, and making it convenient to use the limiting rod 26 to reinforce the door leaf 2.
[0006] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0007] 1. This application enables the screw to rotate under the drive of the worm gear and worm, through the mutual cooperation of the first gear and the second gear, so that the two ends of the limiting rod are locked inside the groove, thereby limiting the connection between the two door panels and preventing the door panels from shaking and affecting their sealing performance.
[0008] 2. This application can limit the door leaf by using the cooperation of clamping blocks and locking blocks, thereby facilitating the limiting and reinforcement of the door leaf connection. Attached Figure Description
[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0012] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.
[0013] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.
[0014] In the diagram: 1. Outer frame; 11. Hinge; 12. Handle; 13. First sealing strip; 14. Second sealing strip; 2. Door leaf; 21. Worm gear; 211. Turn handle; 22. Worm wheel; 23. First gear; 24. Second gear; 25. Screw; 26. Limiting rod; 261. Cavity; 262. Groove; 3. First fixing plate; 31. Spring; 32. Clamping block; 33. Second fixing plate; 34. Locking block; 4. Drive device. Detailed Implementation
[0015] 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.
[0016] Example: Figure 1-4 As shown, this utility model provides a shielded door sealing structure, including an outer frame 1. Multiple symmetrically distributed hinges 11 are installed on one side of the outer frame 1. Two symmetrically distributed door leaves 2 are located in the middle of the outer frame 1. One side of each of the multiple hinges 11 is fixedly installed on one side of each door leaf 2. A worm gear 22 is rotatably installed in the middle of each of the two door leaves 2. A worm 21 is provided on the upper part of each of the two worm gears 22. Both worm 21s are rotatably installed in the middle of each door leaf 2, and are meshed with the worm gears 22. A second gear 24 is rotatably installed in the middle of one side of each of the two worm gears 22. By setting the worm gears 22 and worm 21, the structure of the worm gears 22 and worm 22 has a self-locking function, thereby making it more stable when limiting and fixing the connection of the door leaves 2. A screw 25 is rotatably installed in the middle of each of the two door leaves 2. A limit rod 26 is threadedly installed on the outer surface of each of the two screws 25. One end of each door leaf 2 is fixedly equipped with a first gear 23, and both first gears 23 mesh with second gears 24. By setting the first gear 23 and the second gear 24, wherein the second gear 24 is larger than the first gear 23, it is easier and faster to rotate the screw 25 by rotating the handle 211. The outer sides of both door leaves 2 are fixedly equipped with L-shaped first sealing strips 13. One side of each of the two first sealing strips 13 is in contact with one side of the outer frame 1. By setting the first sealing strips 13, when the door leaf 2 is closed, the first sealing strips 13 are in contact with one side of the outer frame 1 to seal it. The opposite sides of the two door leaves 2 are fixedly equipped with second sealing strips 14. The two second sealing strips 14 are in contact with each other. By setting the second sealing strips 14, when the two door leaves 2 are close together and closed, the mutual compression of the second sealing strips 14 achieves a seal between the door leaves 2.
[0017] A second fixing plate 33 is fixedly installed on one side of the top of each of the two door leaves 2. A locking block 34 is fixedly installed on one side of each of the two second fixing plates 33. Two symmetrically distributed first fixing plates 3 are fixedly installed on the upper part of the outer frame 1. Two clamping blocks 32 that cooperate with each other are rotatably installed in the middle of each of the two first fixing plates 3. The two locking blocks 34 and the clamping blocks 32 cooperate with each other. By setting the locking blocks 34 and the clamping blocks 32, the clamping blocks 32 clamp and limit the locking blocks 34 in the middle, thereby limiting and fixing the door leaves 2, and making it convenient to use the limiting rod 26 to reinforce the door leaves 2.
[0018] Each of the two worm gears 21 has a rotating handle 211 fixedly installed at one end of the door leaf 2. By setting the rotating handle 211, rotating the rotating handle 211 can drive the worm gear 21 to rotate.
[0019] Each of the two door panels 2 has a cavity 261 on one side, and the two limiting rods 26 are slidably locked inside the cavity 261. By setting the cavity 261, it is convenient to drive the limiting rod 26 to slide stably inside the cavity 261 by rotating the screw 25.
[0020] Two symmetrically distributed grooves 262 are provided on opposite sides of the two door leaves 2. The two limiting rods 26 are slidably locked inside the grooves 262 on both sides. By setting the grooves 262, the limiting rods 26 are locked inside the grooves 262, which can limit and fix the door leaves 2.
[0021] Springs 31 are fixedly installed on the opposite sides of the four clamping blocks 32, and the other ends of the four springs 31 are fixedly installed on one side of the first fixing plate 3. By setting the springs 31, the clamping block 34 can be clamped and fixed by the clamping blocks 32 under the action of the springs 31.
[0022] A drive device 4 is fixedly installed on one side of the top of the outer frame 1. By setting the drive device 4, the door leaf 2 can be opened and closed under the drive of the drive device 4.
[0023] Handles 12 are fixedly installed on the middle of both sides of the two door panels 2. By setting the handles 12, the door panels 2 can be opened and closed conveniently.
[0024] Working principle: In actual use, rotating the rotating handle 211 drives the worm gear 21 to rotate, which in turn drives the worm wheel 22 that meshes with it to rotate, thereby driving the second gear 24 to rotate, which in turn drives the first gear 23 to rotate. The rotation of the first gear 23 drives the screw 25 to rotate, which causes the limiting rod 26 threaded on the outer surface of the screw 25 to move, so that both ends of the limiting rod 26 are slidably locked inside the groove 262, thereby making the connection between the two door leaves 2 tighter and more stable.
[0025] After the door leaf 2 is closed, the locking block 34 will be locked inside the two clamping blocks 32. Under the action and reaction force of the spring 31, the two clamping blocks 32 can clamp and fix the locking block 34 in the middle, so as to facilitate the limiting rod 26 to limit and fix the two door leaves 2.
[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A shield door seal structure comprising an outer frame (1), characterized in that: The side of the outer frame (1) is provided with a plurality of symmetrical hinges (11), the middle of the outer frame (1) is provided with two symmetrical door leaves (2), one side of the plurality of hinges (11) is fixedly installed on one side of the door leaf (2), the middle of the two door leaves (2) is rotatably installed with a worm wheel (22), the upper part of the two worm wheels (22) is provided with a worm (21), the middle of the two door leaves (2) is rotatably installed with the worm (21), the two worm wheels (22) are meshed and connected, the middle of one side of the two worm wheels (22) is rotatably installed with a second gear (24), the middle of the two door leaves (2) is rotatably installed with a screw rod (25), the outer surface of the two screw rods (25) is threadedly installed with a limiting rod (26), one end of the two screw rods (25) is fixedly installed with a first gear (23), the two first gears (23) are meshed with the second gear (24), the outer side of the two door leaves (2) is fixedly installed with a first sealing rubber strip (13) in L shape, one side of the two first sealing rubber strips (13) is in contact with one side of the outer frame (1), the opposite side of the two door leaves (2) is fixedly installed with a second sealing rubber strip (14), and the two second sealing rubber strips (14) are in contact with each other.
2. A shielded door seal structure as defined in claim 1, wherein, The top side of the two door leaves (2) is fixedly installed with a second fixed plate (33), one side of the two second fixed plates (33) is fixedly installed with a clamping block (34), the upper part of the outer frame (1) is fixedly installed with two symmetrical first fixed plates (3), the middle of the two first fixed plates (3) is rotatably installed with two clamping blocks (32) used in cooperation, and the two clamping blocks (34) are used in cooperation with the clamping blocks (32).
3. A shielded door seal structure as defined in claim 1, wherein, One end of the two worm gears (21) penetrating the door leaf (2) is fixedly installed with a rotating handle (211).
4. A shielded door seal structure as defined in claim 1, wherein, One side of the two door leaves (2) is provided with a cavity (261), and the two limiting rods (26) are slidably clamped in the cavity (261).
5. A shielded door seal structure as defined in claim 1 wherein, The opposite side of the two door leaves (2) is provided with two symmetrical grooves (262), and the two limiting rods (26) are slidably clamped in the grooves (262).
6. A shielded door seal structure as defined in claim 2 wherein, The opposite sides of the four clamping blocks (32) are fixedly installed with springs (31), and the other ends of the four springs (31) are fixedly installed on one side of the first fixed plate (3).
7. A shielded door seal structure as defined in claim 1 wherein, The top side of the outer frame (1) is fixedly installed with a driving device (4).
8. A shielded door seal structure as defined in claim 1, wherein, The two door leaves (2) are fixedly installed with handles (12) on both sides of the middle.