Double-layer rotating shaft door convenient to push and position
By introducing a connecting shaft, bevel gear, synchronization component, and positioning block into the double-layer pivot door, the friction problem during opening and closing of the double-layer pivot door is solved, achieving convenient door operation and stable positioning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG OCEAN BATH CO LTD
- Filing Date
- 2025-02-18
- Publication Date
- 2026-05-01
AI Technical Summary
Existing double-layer pivot doors are difficult to manually push and position due to the large friction between their own weight and the door frame during opening and closing operations.
The structure adopts a design including a connecting shaft, bevel gears, a synchronization component, a positioning block, and pulleys. Through the meshing transmission of bevel gears and the cooperation of the synchronization component, the outer and inner door panels can be opened and closed synchronously. The friction between the door body and the door frame is reduced through the cooperation of the positioning block and the strong spring.
This design enables convenient operation of the double-layer hinged door, reduces friction between the door and the frame, and improves the ease and stability of opening and closing.
Smart Images

Figure CN224187419U_ABST
Abstract
Description
A double-layer hinged door that is easy to push and position Technical Field
[0001] This utility model relates to the field of double-layer pivot door technology, and in particular to a double-layer pivot door that is easy to push and position. Background Technology
[0002] A double-hinged door is a door structure consisting of two layers of door panels, typically connected to the door frame by one or more hinges. Compared to traditional single-leaf doors, the two leaves of a double-hinged door can be opened individually or simultaneously. Its design is commonly used in architectural environments requiring efficient space partitioning, improved sound insulation, thermal insulation, or higher aesthetic requirements. Double-hinged doors not only possess a unique aesthetic appeal but also offer significant functional advantages, particularly in flexibility, sound insulation, sealing, and security. They are widely used in buildings, public facilities, commercial spaces, and some special environments. Most existing double-hinged doors are single-leaf designs. Furthermore, the weight of the double-hinged door itself causes significant friction with the door frame during opening and closing, making manual pushing and positioning difficult. Therefore, we propose a double-hinged door that is easier to push and position. Summary of the Invention
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a double-layer pivot door that is easy to push and position.
[0004] The technical solution of this utility model is as follows: A double-layer pivot door that is easy to push and position, comprising a door frame, two sets of door bodies symmetrically arranged within the door frame, each set of door bodies including an outer door panel and an inner door panel, and a switch assembly provided within each of the outer and inner door panels. The switch assembly includes a connecting shaft, with a first driven bevel gear at each end of the connecting shaft. A second driven bevel gear and a driving bevel gear are respectively meshed on the outer sides of the two sets of first driven bevel gears. A rotating shaft is provided within the inner ring of the second driven bevel gear, and a shaft rod is provided within the inner ring of the driving bevel gear. Ball bearings are provided at both the upper and lower ends of the rotating shaft. A synchronization component is provided on one side of the outer door panel. The synchronization component includes a connecting rod that passes through the outer door panel. One end of the connecting rod is provided with multiple sets of locking blocks. A connecting plate is provided on one side of the inner door panel. The connecting plate has a locking groove. A handwheel is provided on the end of the connecting rod away from the locking block. A positioning block is provided below each set of outer door panels. Two sets of strong springs are provided on one side of the positioning block. A pulley is provided below the outer door panel near the positioning block. Two sets of rotating shaft grooves are symmetrically provided at the bottom of the inner wall of the door frame. Two sets of wheel grooves are provided between the two sets of rotating shaft grooves at the bottom of the inner wall of the door frame.
[0005] Preferably, the outer periphery of the two sets of door bodies is installed corresponding to the inner wall of the door frame. A cavity is opened in both the outer door panel and the inner door panel. A stabilizing block is provided in the cavity. A through hole is opened on the stabilizing block. A bushing is provided in the through hole. The outer ring of the connecting shaft is installed corresponding to the inner ring of the bushing.
[0006] Preferably, the two sets of first driven bevel gears are respectively sleeved at both ends of the connecting shaft. The outer door panel and the inner door panel are both provided with shaft holes. The rotating shaft is installed in accordance with the shaft holes. Bearings are sleeved at both ends of the rotating shaft. Ball grooves are provided at both the upper and lower ends of the rotating shaft. The balls are installed in accordance with the ball grooves. Positioning holes are provided on both the upper and lower sides of the door frame. The two ends of the rotating shaft on the outer door panel are installed in accordance with the positioning holes. The two ends of the rotating shaft on the inner door panel are installed in accordance with the rotating shaft grooves.
[0007] Preferably, the mounting end of the active bevel gear is installed corresponding to the outer ring of the shaft. Both the outer and inner door panels are provided with assembly grooves. A second bushing is provided in the assembly groove. The shaft is installed corresponding to the second bushing. A rotating wheel is provided at one end of the shaft on the outer door panel, and a rotating pull ring is provided at one end of the shaft on the inner door panel.
[0008] Preferably, the mounting end of each set of the card blocks is installed corresponding to one end of the connecting rod, one end of the handwheel is installed corresponding to the other end of the connecting rod, the inner door panel has a mounting groove, the mounting end of the connecting plate is installed corresponding to the mounting groove, and the handwheel is installed corresponding to the card groove.
[0009] Preferably, a second mounting groove is provided at the bottom of the outer door panel, the positioning block is installed correspondingly to the second mounting groove, one end of the strong spring is installed correspondingly to the top of the positioning block, and the other end of the strong spring is installed correspondingly to the upper side of the inner wall of the second mounting groove. Slider blocks are provided on both sides of the positioning block, and sliding grooves are provided on both sides of the inner wall of the second mounting groove, with the sliders installed correspondingly to the sliding grooves.
[0010] Preferably, an installation groove three is provided at the bottom of the outer door panel, and the pulley is installed in a corresponding manner with the installation groove three, with the bottom of the pulley and the groove being adapted to each other.
[0011] Compared with the prior art, the present invention has the following beneficial technical effects:
[0012] This utility model has a simple overall structure, consisting of a door frame and two symmetrically arranged door panels assembled together. Switch components installed in the outer and inner door panels allow for opening and closing operations on the outer and inner door panels respectively. A synchronization component connects the outer and inner door panels, enabling them to open and close synchronously. A positioning block with a strong spring positions the door, and pulleys significantly reduce friction between the door and the door frame, facilitating quick opening and closing operations for the operator. Attached Figure Description
[0013] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 is a structural schematic diagram of the door body in this utility model;
[0015] Figure 3 is an exploded view of a portion of the structure of the door body in this utility model;
[0016] Figure 4 is a partial structural cross-sectional view of the outer door panel in this utility model;
[0017] Figure 5 is a structural schematic diagram of the inner door panel in this utility model;
[0018] Figure 6 is a structural schematic diagram of the door frame in this utility model.
[0019] Reference numerals: 1. Door frame; 2. Door body; 21. Outer door panel; 22. Inner door panel; 23. Connecting shaft; 231. First driven bevel gear; 232. Second driven bevel gear; 233. Driving bevel gear; 234. Rotating shaft; 235. Shaft; 236. Ball bearing; 237. Rotating wheel; 238. Rotating pull ring; 24. Synchronization assembly; 241. Connecting rod; 242. Locking block; 243. Connecting disc; 244. Locking groove; 245. Handwheel; 25. Positioning block; 26. Strong spring; 27. Pulley; 3. Rotating shaft groove; 4. Wheel groove; 5. Stabilizing block; 6. Bushing one; 7. Bushing two; 8. Sliding block; 9. Groove; 10. Bearing. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0021] Example
[0022] As shown in Figures 1-6, this utility model proposes a double-layer pivot door that is easy to push and position. It includes a door frame 1, with two sets of door bodies 2 symmetrically arranged inside the door frame 1. The outer periphery of each set of door bodies 2 is installed correspondingly to the inner wall of the door frame 1. Each set of door bodies 2 includes an outer door panel 21 and an inner door panel 22. A switch assembly is provided inside both the outer door panel 21 and the inner door panel 22. The switch assembly includes a connecting shaft 23. A cavity is provided inside both the outer door panel 21 and the inner door panel 22. A stabilizing block 5 is provided within each cavity. The mounting end of the stabilizing block 5 is fixedly connected to the inner wall of the cavity. A through hole is provided on the stabilizing block 5, and a bushing 6 is provided within the through hole. The outer ring of the connecting shaft 23 is installed correspondingly to the inner ring of the bushing 6. The bushing 6 allows the connecting shaft 23 to rotate more smoothly. Both ends of the connecting shaft 23 are provided with first driven bevel gears 231. Two sets of first driven bevel gears 231 are respectively sleeved at both ends of the connecting shaft 23. The mounting ends of the first driven bevel gears 231 are fixedly connected to the connecting shaft 23. The outer sides of the two sets of first driven bevel gears 231 are respectively meshed with second driven bevel gears 232 and driving bevel gears 233. The inner ring of the second driven bevel gear 232 is provided with a rotating shaft 234. The second driven bevel gear 232 is fixedly sleeved on the outer ring of the rotating shaft 234. The first driven bevel gears 231 and second driven bevel gears 232 are meshed and connected. Both the outer door panel 21 and the inner door panel 22 are provided with shaft holes. The rotating shaft 234 is installed correspondingly to the shaft holes and is rotatably connected to the shaft holes. Both ends of the rotating shaft 234 are sleeved with... The outer ring of the bearing 10 and the inner ring of the rotating shaft 234 are fixedly connected. Positioning holes are provided on both the upper and lower sides of the door frame 1. The two ends of the rotating shaft 234 on the outer door panel 21 are installed corresponding to the positioning holes, and the rotating shaft 234 on the outer door panel 21 is rotatably connected to the positioning holes. Two sets of rotating shaft grooves 3 are symmetrically provided at the bottom of the inner wall of the door frame 1. The two ends of the rotating shaft 234 on the inner door panel 22 are installed corresponding to the rotating shaft grooves 3. The rotating shaft grooves 3 can limit and guide the rotating shaft 234 on the inner door panel 22 during movement, thereby making the inner door panel 22 more stable when opening. A shaft 235 is provided on the inner ring of the driving bevel gear 233. The mounting end of the driving bevel gear 233 is installed corresponding to the outer ring of the shaft 235, and the driving bevel gear 233 is fixedly sleeved. Outside the shaft 235, the driving bevel gear 233 meshes with the first driven bevel gear 231. Both the outer door panel 21 and the inner door panel 22 have mounting slots, and bushings 7 are installed within these slots. The shaft 235 is installed correspondingly to bushings 7, with the outer ring of the shaft 235 and the inner ring of bushing 7 fitting together. The bushings 7 allow the shaft 235 to rotate more smoothly. A rotating wheel 237 is provided at one end of the shaft 235 on the outer door panel 21, and is fixedly connected to one end of the shaft 235. The rotating wheel 237 facilitates the operator's rotation of the shaft 235 inside the outer door panel 21, thus enabling the operator to open and close the hinged door. A rotating pull ring 238 is provided at one end of the shaft 235 on the inner door panel 22.One side of the rotating pull ring 238 is fixedly connected to one end of the shaft 235 inside the inner door panel 22. The rotating pull ring 238 facilitates the operator's mechanical opening and closing of the inner door panel 22. Both the upper and lower ends of the rotating shaft 234 are equipped with ball bearings 236, and both ends of the rotating shaft 234 have ball bearing grooves. The ball bearings 236 are installed correspondingly to the ball bearing grooves and are rotatably connected to them. The ball bearings 236 greatly reduce the friction between the two ends of the rotating shaft 234 and the door frame 1, thus making it easier for the operator to open and close the door 2. The connecting shaft 23 facilitates the operator to open and close both the outer door panel 21 and the inner door panel 22 separately.
[0023] A synchronization component 24 is provided on one side of the outer door panel 21. The synchronization component 24 includes a connecting rod 241 that passes through the outer door panel 21. The connecting rod 241 is slidably connected to the outer door panel 21. One end of the connecting rod 241 is provided with multiple sets of locking blocks 242. The mounting end of each set of locking blocks 242 is installed corresponding to one end of the connecting rod 241. The mounting end of the locking blocks 242 is fixedly connected to one end of the connecting rod 241. A handwheel 245 is provided on the end of the connecting rod 241 away from the locking blocks 242. One end of the handwheel 245 is installed corresponding to the other end of the connecting rod 241. The handwheel 245 is fixedly connected to the connecting rod 241. The 245 setting facilitates the operator to rotate the connecting rod 241. A connecting plate 243 is provided on one side of the inner door panel 22. An installation groove is provided on the inner door panel 22. The installation end of the connecting plate 243 is installed in the corresponding installation groove. The connecting plate 243 is fixedly connected to the installation groove. A slot 244 is provided on the connecting plate 243. The handwheel 245 is installed in the corresponding slot 244. The handwheel 245 and the slot 244 are interlocked. The synchronous component 24 can connect the outer door panel 21 and the inner door panel 22, so that the operator can open and close the outer door panel 21 and the inner door panel 22 at the same time.
[0024] Each set of outer door panels 21 has a positioning block 25 at its bottom. A second mounting groove is formed at the bottom of the outer door panel 21. The positioning block 25 is installed correspondingly to the second mounting groove and is slidably connected to it. One side of the positioning block 25 is angled. This angled shape allows the door frame 1 and the outer door panel 21 to work together to press against the angled area of the positioning block 25 when the outer door panel 21 is closed, causing the positioning block 25 to retract into the second mounting groove due to pressure. Two sets of high-strength springs 26 are provided on one side of the positioning block 25. One end of the spring 26 is installed correspondingly to the upper part of the positioning block 25. One end of the strong spring 26 is fixedly connected to one side of the positioning block 25. The other end of the strong spring 26 is installed correspondingly to one side of the inner wall of the second mounting groove. The other end of the strong spring 26 is fixedly connected to the inner wall of the second mounting groove. When the strong spring 26 is in the initial state, the bottom of the positioning block 25 extends out of the second mounting groove. Slider 8 is provided on both sides of the positioning block 25. The mounting end of the slider 8 is fixedly connected to the positioning block 25. Sliding grooves 9 are provided on both sides of the inner wall of the second mounting groove. The slider 8 is installed correspondingly to the sliding grooves 9 and is slidably connected to the sliding grooves 9. The slider 8 and the slide groove 9 work together to guide and limit the movement of the positioning block 25. The positioning block 25 positions the door 2 when it is open. When the door 2 is open, the bottom of the positioning block 25 extends out of the mounting groove 2 under the reset action of the strong spring 26, so that one side of the bottom of the positioning block 25 abuts against the ground, thereby positioning the opening angle of the door 2. At the same time, it increases the friction between the bottom of the door 2 and the ground, preventing the door 2 from rotating randomly when open. A slide groove is provided at the bottom of the outer door panel 21 near the positioning block 25. The pulley 27 has an installation groove 3 below the outer door panel 21. The pulley 27 is installed in the corresponding installation groove 3. The inner wall of the installation groove 3 has assembly holes on both sides. The installation end of the pulley 27 is rotatably connected to the assembly hole. There are two sets of wheel grooves 4 between the two sets of rotating shaft grooves 3 located at the bottom of the inner wall of the door frame 1. The bottom of the pulley 27 is adapted to the wheel grooves 4. The wheel grooves 4 can limit and guide the movement of the pulley 27 below the outer door panel 21 and the inner door panel 22. The pulley 27 can further reduce the friction between the door body 2 and the door frame 1, so that the door body 2 can be opened and closed more easily.
[0025] In this embodiment, when the operator needs to open and close the outer door panel 21 and the inner door panel 22 separately, the operator first rotates the rotating wheel 237, causing the rotating wheel 237 to drive the driving bevel gear 233 to rotate via the shaft 235. The rotation of the driving bevel gear 233, through its meshing with a set of first driven bevel gears 231, drives the connecting shaft 23 to rotate as well. The rotation of the connecting shaft 23, through the meshing of the first driven bevel gear 231 and the second driven bevel gear 232 at the other end, drives the rotating shaft 234 to rotate as well. Then, the operator pulls the outer door panel 21 outward, at which time the outer door panel 21 drives the pulley 27 to rotate, and at the same time, the bottom of the positioning block 25 gradually disengages from the door. When frame 1 is in abutting state, the bottom side of positioning block 25 extends out of the mounting groove and contacts the ground under the reset action of strong spring 26, thereby completing the opening operation of outer door panel 21. At this time, positioning block 25 positions outer door panel 21. Then, the operator opens inner door panel 22 by rotating rotating pull ring 238. When opening inner door panel 22, the inner door panel 22 rotates and slides along rotating shaft groove 3 under the action of pulley 27 and wheel groove 4, thereby completing the opening operation of inner door panel 22. Then, the operator pushes or reverses rotating pull ring 238 and rotating wheel 237 one by one to close inner door panel 22 and outer door panel 21.
[0026] When the operator needs to open and close the outer door panel 21 and the inner door panel 22 simultaneously, the operator first turns the handwheel 245, causing the handwheel 245 to drive the locking block 242 to rotate in the locking slot 244 via the connecting rod 241. At this time, the locking block 242 and the connecting plate 243 are in a mutually interlocking state. Then, the operator turns the rotating wheel 237, thereby opening the outer door panel 21. Since the inner door panel 22 is connected to the outer door panel 21 via the synchronization component 24, the outer door panel 21 drives the inner door panel 22 to follow suit when it is opened, thus completing the synchronous opening and closing operation of the outer door panel 21 and the inner door panel 22.
[0027] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A double-leaf pivot door with facilitated push positioning, comprising a door frame (1), characterized in that: Two sets of door bodies (2) are symmetrically arranged inside the door frame (1). Each set of door bodies (2) includes an outer door panel (21) and an inner door panel (22). A switch assembly is provided in both the outer door panel (21) and the inner door panel (22). The switch assembly includes a connecting shaft (23). A first driven bevel gear (231) is provided at both ends of the connecting shaft (23). A second driven bevel gear (232) and a driving bevel gear (233) are respectively meshed on the outer sides of the two sets of first driven bevel gears (231). A rotating shaft (234) is provided on the inner ring of the second driven bevel gear (232). A shaft (235) is provided on the inner ring of the driving bevel gear (233). Ball bearings (236) are provided at both the upper and lower ends of the rotating shaft (234). A synchronization assembly (24) is provided on one side of the outer door panel (21). The component (24) includes a connecting rod (241) that passes through the outer door panel (21). One end of the connecting rod (241) is provided with multiple sets of locking blocks (242). A connecting plate (243) is provided on one side of the inner door panel (22). A slot (244) is provided on the connecting plate (243). A handwheel (245) is provided on one end of the connecting rod (241) away from the locking block (242). A positioning block (25) is provided below each set of outer door panels (21). Two sets of strong springs (26) are provided on one side of the positioning block (25). A pulley (27) is provided below the outer door panel (21) near the positioning block (25). Two sets of rotating shaft grooves (3) are symmetrically provided at the bottom of the inner wall of the door frame (1). Two sets of wheel grooves (4) are provided between the two sets of rotating shaft grooves (3) at the bottom of the inner wall of the door frame (1).
2. The dual-layer pivot door with easy push positioning of claim 1, wherein, The outer periphery of the two sets of door bodies (2) is installed corresponding to the inner wall of the door frame (1). The outer door panel (21) and the inner door panel (22) are both provided with cavities. A stabilizing block (5) is provided in the cavity. A through hole is provided on the stabilizing block (5). A bushing (6) is provided in the through hole. The outer ring of the connecting shaft (23) is installed corresponding to the inner ring of the bushing (6).
3. The dual-layer pivot door with easy push positioning of claim 1, wherein, Two sets of first driven bevel gears (231) are respectively sleeved at both ends of the connecting shaft (23). The outer door panel (21) and the inner door panel (22) are both provided with shaft holes. The rotating shaft (234) is installed in accordance with the shaft holes. The two ends of the rotating shaft (234) are both sleeved with bearings (10). The upper and lower ends of the rotating shaft (234) are both provided with ball grooves. The balls (236) are installed in accordance with the ball grooves. The upper and lower sides of the door frame (1) are both provided with positioning holes. The two ends of the rotating shaft (234) on the outer door panel (21) are installed in accordance with the positioning holes. The two ends of the rotating shaft (234) on the inner door panel (22) are installed in accordance with the rotating shaft slide groove (3).
4. The dual pivot door of claim 1, wherein, The mounting end of the active bevel gear (233) is installed corresponding to the outer ring of the shaft (235). The outer door panel (21) and the inner door panel (22) are both provided with assembly slots. The assembly slots are provided with bushings (7). The shaft (235) is installed corresponding to bushings (7). One end of the shaft (235) on the outer door panel (21) is provided with a rotating wheel (237). One end of the shaft (235) on the inner door panel (22) is provided with a rotating pull ring (238).
5. The dual pivot door of claim 1, wherein, The mounting end of each set of the card blocks (242) is installed corresponding to one end of the connecting rod (241), one end of the handwheel (245) is installed corresponding to the other end of the connecting rod (241), the inner door panel (22) is provided with a mounting groove, the mounting end of the connecting plate (243) is installed corresponding to the mounting groove, and the handwheel (245) is installed corresponding to the card slot (244).
6. The dual action pivot door of claim 1, wherein, The outer door panel (21) has a second mounting groove at its bottom. The positioning block (25) is installed in the second mounting groove. One end of the strong spring (26) is installed in the upper part of the positioning block (25), and the other end of the strong spring (26) is installed in the upper part of the inner wall of the second mounting groove. The positioning block (25) has sliders (8) on both sides. The inner wall of the second mounting groove has grooves (9) on both sides. The sliders (8) are installed in the grooves (9).
7. A double-layer pivot door for easy pushing and positioning according to claim 1, characterized in that, The outer door panel (21) has an installation groove three below it. The pulley (27) is installed in the corresponding installation groove three. The bottom of the pulley (27) is adapted to the wheel groove (4).