Classroom door with anti-pinch function
By setting grooves and U-shaped plates in the door core of the classroom door, the coupling of springs and tooth rings is used to realize the limit function when the door core is closed, the problem of students being pinched is solved and buffering is provided when the wind blows , improves the safety and stability of the door.
Patent Information
- Application Number
- CN202421010719.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The common doors in folding or door shafts in school classrooms lack anti-pinch safety devices, which leads to students being easily pinched when opening and closing the door, which poses a major safety hazard.
A classroom door with anti-clip function is designed. The door core is closed by setting grooves and U-shaped plates in the door core, using the cooperation of the first spring and the tooth ring, and setting a support block on the top surface of the U-shaped plate. The limit function is to avoid clamping the student's hands.
It effectively improves the safety of the use of the door core, avoids clamping the student's hands when closed, and provides a buffering effect when blown by the wind, prevents the support block from deforming, and ensures the normal use of the door core.
Smart Images
Figure CN222315023U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of campus appliances, in particular to a classroom door with an anti-pinch function. Background Art
[0002] Doors are the most basic safety protection equipment in daily life and are widely used in various fields, such as homes, campuses, classrooms, factories, hospitals, etc.
[0003] At present, most of the doors used in school classrooms are of hinged or door hinge type, and are generally not equipped with anti-pinch safety devices. Due to the low safety awareness of students, they often open and close the doors and like to play next to the doors. When students close the doors forcefully or due to other reasons such as wind, they may not notice other students nearby due to limited vision or lack of concentration. The fingers or other parts of other students are still in the gap of the door and cannot be pulled back in time. They are very easy to be pinched by the door, which may cause swelling of the fingers in mild cases and comminuted fractures of the fingers in severe cases. Therefore, there are great safety hazards. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a classroom door with an anti-pinch function.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a classroom door with anti-pinch function, comprising a door frame, a door core hinged inside the door frame, an external movably connected handle of the door core, a groove is provided inside the door core, a U-shaped plate is vertically slidably connected inside the groove, a rotating shaft is horizontally rotatably connected inside the groove, one end of the rotating shaft rotates through the groove and is fixedly connected to the handle, the outer edge of the rotating shaft is fixedly sleeved with a gear ring, the vertical surface of the U-shaped plate is provided with teeth matching with the gear ring, the top surface of the groove passes through a through groove, a support block is slidably connected inside the through groove, a buffer is horizontally fixed on the support block, and a limiting groove matching with the buffer is vertically opened on the top wall of the door frame.
[0006] As a further description of the above technical solution: the buffer component includes a fixing block horizontally fixed on the front side of the supporting block, the fixing block is horizontally provided with a blind hole, and the buffer block is telescopically connected in the blind hole.
[0007] As a further description of the above technical solution: two radially symmetrical second sliding grooves are axially opened in the blind hole, a second slider is slidably connected in each of the second sliding grooves, two second sliders are fixedly connected to the buffer block, and a second spring is horizontally fixed between the blind hole and the buffer block.
[0008] As a further description of the above technical solution: a first sliding groove is vertically opened on the inner wall of the groove, a first slider is slidably connected in the first sliding groove, the first slider is fixedly connected to the outside of the vertical surface of the U-shaped plate, and a first spring is vertically fixed between the bottom surface of the U-shaped plate and the bottom wall of the groove.
[0009] As a further description of the above technical solution: the door core is opened inwards.
[0010] As a further description of the above technical solution: the width of the through slot is greater than the sum of the widths of the buffer and the support block, and the width of the limiting slot is equal to the width of the through slot.
[0011] The utility model has the following beneficial effects:
[0012] Compared with the prior art, the classroom door with anti-pinch function has a groove arranged in the door core, and a U-shaped plate with teeth on the inner side is slidably connected in the groove through a first spring, and a gear ring engaged with the U-shaped plate is rotatably connected in the groove, and a support block is arranged on the top surface of the U-shaped plate, which limits the closing of the door core and avoids pinching students' hands when the door core is closed, thereby improving the safety of the door core. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a three-dimensional diagram of the overall structure of a classroom door with an anti-pinch function proposed by the utility model;
[0014] Figure 2 This is a main cross-sectional view of the overall structure of a classroom door with an anti-pinch function proposed by the utility model;
[0015] Figure 3 The utility model provides a classroom door with anti-pinch function. Figure 2 An enlarged side cross-sectional view of the structure at point A in the middle.
[0016] Legend:
[0017] 1. Door frame; 2. Door core; 3. Handle; 4. Groove; 5. First spring; 6. Rotating shaft; 7. Gear ring; 8. U-shaped plate; 9. First slide groove; 10. First slider; 11. Through groove; 12. Limiting groove; 13. Support block; 14. Fixed block; 15. Second slide groove; 16. Second slider; 17. Buffer block; 18. Second spring; 19. Blind hole. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] Reference Figures 1 to 3 The utility model provides a classroom door with anti-pinch function: comprising a door frame 1, a door core 2 hinged in the door frame 1, the door core 2 is opened inwardly, the door core 2 is externally movably connected to a handle 3, a groove 4 is provided inside the door core 2, a U-shaped plate 8 is vertically slidably connected in the groove 4, a first slide groove 9 is vertically provided on the inner wall of the groove 4, a first slide block 10 is slidably connected in the first slide groove 9, the first slide block 10 is fixedly connected to the outside of the vertical surface of the U-shaped plate 8, a first spring 5 is vertically fixed between the bottom surface of the U-shaped plate 8 and the bottom wall of the groove 4, and the groove 4 is horizontally rotatably connected to the rotating shaft 6, one end of the rotating shaft 6 rotates through the groove 4 and is fixedly connected to the handle 3, the outer edge of the rotating shaft 6 is fixedly sleeved with the gear ring 7, the vertical surface of the U-shaped plate 8 is provided with teeth matching with the gear ring 7, the top surface of the groove 4 passes through the through groove 11, the through groove 11 is slidably connected with the support block 13, the support block 13 horizontally fixes the buffer, and the top wall of the door frame 1 is vertically provided with a limiting groove 12 matching with the buffer, the width of the through groove 11 is greater than the sum of the widths of the buffer and the support block 13, and the width of the limiting groove 12 is equal to the width of the through groove 11;
[0020] By providing a groove 4 in the door core 2, and slidingly connecting a U-shaped plate 8 with teeth on the inner side thereof in the groove 4 through a first spring 5, and rotatably connecting a gear ring 7 meshing with the U-shaped plate 8 in the groove 4, and providing a support block 13 on the top surface of the U-shaped plate 8, the closing of the door core 2 is limited, and the door core 2 is prevented from pinching the students' hands when closing, thereby improving the safety of the door core 2;
[0021] The buffer member includes a fixed block 14 horizontally fixed to the front side of the support block 13, a blind hole 19 is horizontally provided in the fixed block 14, a buffer block 17 is telescopically connected in the blind hole 19, two radially symmetrical second slide grooves 15 are axially provided in the blind hole 19, a second slider 16 is slidably connected in each second slide groove 15, and the two second sliders 16 are fixedly connected to the buffer block 17, and a second spring 18 is horizontally fixed between the blind hole 19 and the buffer block 17;
[0022] By fixing a buffer member composed of a fixing block 14, a buffer block 17 and a second spring 18 on the support block 13, when the door core 2 is blown by wind, the impact force generated when the support block 13 collides with the door frame 1 is buffered, thereby preventing the support block 13 from being subjected to excessive impact force, causing deformation of the support block 13, and thus affecting the normal use of the door core 2;
[0023] Working principle: When in use, when opening the door, the handle 3 is rotated counterclockwise, the handle 3 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the gear ring 7 to rotate, the gear ring 7 drives the U-shaped plate 8 to descend through the teeth on the U-shaped plate 8, and at the same time, the U-shaped plate 8 compresses the first spring 5 downward, and the U-shaped plate 8 retracts the support block 13 and the buffer member located in the limiting groove 12 of the door frame 1 into the groove 4, releases the limiting of the buffer member and the support block 13 on the door frame 1 and the door core 2, and then the door core 2 is opened, and then the handle 3 is released, and then the first spring 5 in the compressed state is released. When the first spring 5 is reset, it drives the U-shaped plate 8 to rise, so that the support block 13 and the buffer member extend out of the groove 4, limiting the closing of the door core 2, thereby avoiding pinching the students' hands when closing the door normally. The buffer member composed of the fixed block 14, the buffer block 17 and the second spring 18 on the support block 13 can buffer the impact force generated by the collision between the support block 13 and the door frame 1 when the door core 2 is blown by the wind, thereby avoiding excessive impact force on the support block 13, causing deformation of the support block 13, thereby affecting the normal use of the door core 2.
[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A classroom door with an anti-pinch function, comprising a door frame (1), a door core (2) being hinged inside the door frame (1), characterized in that: The door core (2) is externally movably connected to the handle (3), and a groove (4) is provided inside the door core (2). A U-shaped plate (8) is vertically slidably connected inside the groove (4), and a rotating shaft (6) is horizontally rotatably connected inside the groove (4). One end of the rotating shaft (6) rotates through the groove (4) and is fixedly connected to the handle (3). The outer edge of the rotating shaft (6) is fixedly sleeved with a toothed ring (7), and the vertical surface of the U-shaped plate (8) is provided with teeth that cooperate with the toothed ring (7). The top surface of the groove (4) passes through a through groove (11), and a support block (13) is slidably connected inside the through groove (11). The support block (13) horizontally fixes a buffer component, and the top wall of the door frame (1) is vertically provided with a limit groove (12) that cooperates with the buffer component.
2. The classroom door with anti-pinch function according to claim 1 is characterized by: The buffer component comprises a fixing block (14) fixed horizontally on the front side of the supporting block (13); a blind hole (19) is horizontally provided on the fixing block (14); and a buffer block (17) is telescopically connected inside the blind hole (19).
3. The classroom door with anti-pinch function according to claim 2 is characterized by: Two radially symmetrical second slide grooves (15) are axially provided in the blind hole (19), a second slider (16) is slidably connected in each of the second slide grooves (15), the two second sliders (16) are fixedly connected to the buffer block (17), and a second spring (18) is horizontally fixed between the blind hole (19) and the buffer block (17).
4. The classroom door with anti-pinch function according to claim 1, characterized in that: A first sliding groove (9) is vertically formed on the inner wall of the groove (4), a first sliding block (10) is slidably connected in the first sliding groove (9), the first sliding block (10) is fixedly connected to the outside of the vertical surface of the U-shaped plate (8), and a first spring (5) is vertically fixed between the bottom surface of the U-shaped plate (8) and the bottom wall of the groove (4).
5. The classroom door with anti-pinch function according to claim 1 is characterized by: The door core (2) is opened inwards.
6. The classroom door with anti-pinch function according to claim 1, characterized in that: The width of the through slot (11) is greater than the sum of the widths of the buffer member and the support block (13), and the width of the limiting slot (12) is equal to the width of the through slot (11).