Anti-theft door with sound insulation structure
By setting sliding grooves and limiting grooves on the inside of the security door panel, and using the rod to push the limiting strip to achieve the installation of multiple layers of sound insulation cotton, the problem of poor sound insulation caused by the ventilation window of the security door is solved, and the living experience is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUNSHENG DOOR & WINDOW CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
Existing security doors, after having ventilation windows installed, have poor sound insulation, which affects the living experience.
A sliding groove and a limiting groove are set on the inside of the security door panel. The limiting strip is pushed by the rod to realize the installation of multiple layers of sound insulation cotton, thereby enhancing the sound insulation effect.
By installing multiple layers of sound insulation cotton, the sound insulation effect when the door panel is closed is significantly improved, while the ventilation function of the ventilation window is not affected.
Smart Images

Figure CN224134517U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soundproof and anti-theft door technology, and in particular to an anti-theft door with a soundproof structure. Background Technology
[0002] Currently, most front doors are security doors. Due to their poor ventilation, security doors are usually equipped with ventilation windows to allow air to circulate.
[0003] In existing technology, ventilation windows are installed at the top of security doors, and door panels are installed on the inside of the main body of the security door. When ventilation is needed, the door panels are opened, and when ventilation is not needed, the door panels are closed. Due to the setting of ventilation windows, the thickness of the door panels is much smaller than the thickness of the main body of the security door, resulting in a thickness difference. For example, published literature CN222576562U, etc., has rectangular ventilation openings through the upper part of the wooden door body through the wooden middle board and a pair of wooden plywood on both sides, which improves the ventilation effect but cannot solve the problem of poor sound insulation when the door panels are closed.
[0004] Therefore, this application is submitted by the applicant for security doors that require sound insulation after the installation of ventilation windows. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing a security door with a soundproof structure, which uses a multi-stage limit bar that is installed and stacked by pushing the rod inward.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0007] A soundproof security door includes a door body, a ventilation hole at the top of the door body, a door panel inside the ventilation hole, a cavity inside the door panel, a first upper sliding groove and a first lower sliding groove inside the cavity, a second upper sliding groove and a second lower sliding groove outside the cavity, and multiple limiting grooves at the lower end of all sliding grooves.
[0008] In the above technical solution, preferably, the second upper sliding groove and the second lower sliding groove penetrate the door panel, the first upper sliding groove corresponds to the second upper sliding groove, and the first lower sliding groove corresponds to the second lower sliding groove.
[0009] In the above technical solution, preferably, a rod is provided on both the second upper slide groove and the second lower slide groove, and the front end of the rod passes through the second upper slide groove and the second lower slide groove respectively and is located in the first upper slide groove and the first lower slide groove.
[0010] In the above technical solution, preferably, the first upper sliding groove, the second upper sliding groove, the first lower sliding groove, and the second lower sliding groove all have the space required for the lateral movement of the rod, and the limiting groove is used to cooperate with the rod to limit the rod.
[0011] In the above technical solution, preferably, the space inside the cavity is used to install sound insulation cotton; the sound insulation cotton is flexible sound insulation cotton.
[0012] In the above technical solution, preferably, the vent is provided with a ventilation window for ventilation and air circulation, and the ventilation window is mesh-shaped.
[0013] In the above technical solution, preferably, a hinge is provided between the door panel and the door body, and the door panel is easily installed or disassembled through the hinge.
[0014] In the above technical solution, preferably, a cover plate is provided on the outside of the cavity, and the cover plate is engaged with the door panel by means of screws or pins.
[0015] The beneficial effects of this utility model are: This utility model installs sound insulation cotton in the cavity. If the sound insulation effect of one piece is not good, the sound insulation cotton can be pushed and pressed down by the rod. Multiple limit strips are set. When the sound insulation cotton is pressed down, sound insulation cotton can be installed again. Multiple layers of sound insulation cotton can be installed, so that the sound insulation effect can be improved after the ventilation window door is closed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the present invention.
[0017] Figure 2 This is a schematic diagram of the door panel.
[0018] Figure 3 This is a schematic diagram of the internal structure of the door panel.
[0019] Figure 4 for Figure 3 Enlarged diagram of point A1 in the middle.
[0020] Figure 5 This is a schematic diagram of the rod's position.
[0021] Figure 6 This is a schematic diagram of the internal structure of the door. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
[0023] See Figures 1-6A soundproof security door includes a door body 1 with ventilation holes 2. Ventilation windows 7 are installed on the ventilation holes 2. The ventilation windows 7 on the door body 1 promote indoor and outdoor air convection and improve air quality. The ventilation windows 7 can be designed as a mesh grille. The mesh design can block mosquitoes and small animals from entering. The grille structure resists external intrusion and improves the security of the entrance area. To improve the overall aesthetics, the color of the mesh grille is the same as the door panel color.
[0024] Because the door has a ventilation window 7, the sound insulation effect is poor. A door panel 3 is installed on the inside of the ventilation window 7. The door panel 3 and the door body 1 are connected by a hinge 8. The door panel 3 can be easily installed or removed through the hinge 8. When ventilation is needed, the door panel 3 is opened, and when ventilation is not needed, the door panel 3 is closed. Due to the setting of the ventilation window 7, the thickness of the door panel 3 is much smaller than the thickness of the door body 1, resulting in a thickness difference that leads to poor sound insulation and affects the living experience.
[0025] Specifically, a cavity 4 is provided in the door panel 3. The space inside the cavity 4 is used to install sound insulation cotton. The sound insulation cotton can be installed and fixed by pasting. Environmentally friendly adhesives can be used. The sound insulation cotton is a flexible part that can be contracted.
[0026] Furthermore, as shown in the figure, a first upper sliding groove 101 is provided at the upper end of one side of the cavity 4, and a first lower sliding groove 102 is provided at the lower end. A second upper sliding groove 201 is provided at the upper end of the other side of the cavity 4, and a second lower sliding groove 202 is provided at the lower end. The positions of the first upper sliding groove 101 and the second upper sliding groove 201 correspond, and the positions of the first lower sliding groove 102 and the second lower sliding groove 202 correspond. The second upper sliding groove 201 and the second lower sliding groove 202 penetrate the door panel. A rod is provided on the first upper sliding groove 101 and the second upper sliding groove 201. A rod 6 is also provided on the first lower sliding groove 102 and the second lower sliding groove 202. The front end of the rod 6 enters from the outside of the second upper sliding groove 201 and the second lower sliding groove 202, passes through the second upper sliding groove 201 and the second lower sliding groove 202, and is located in the first upper sliding groove 101 and the first lower sliding groove 102.
[0027] To enable the sound insulation cotton to be pressed down, multiple limiting grooves 5 are provided at the lower ends of the first upper sliding groove 101, the second upper sliding groove 201, the first lower sliding groove 102, and the second lower sliding groove 202. Multiple limiting grooves 5 can be provided, as shown in the figure. There are two limiting grooves 5, representing two positions. The rod 6 is laterally pushed through the first upper sliding groove 101 and the second upper sliding groove 201, or through the first lower sliding groove 102 and the second lower sliding groove 202. The multiple limiting grooves 5 are used to lock the rod 6 into different positions. When the cavity 4 is empty... If the sound insulation effect is still not good after the door panel is closed, the sound insulation cotton is pushed down by the rod 6. The sound insulation cotton is in a retracted state. After the rod 6 pushes and presses down on the sound insulation cotton, the rod 6 is taken out and pulled out to fix the second layer of sound insulation cotton on the retracted sound insulation cotton. Since there are two limiting grooves 5, the sound insulation cotton can be pushed and pressed down to different degrees to achieve the installation of multiple layers of sound insulation cotton. When the door panel is closed, the sound insulation effect is improved without affecting the overall appearance of the door 1.
[0028] A cover plate 9 is provided on the outside of the cavity 4. After the sound insulation cotton is fixedly installed, the cover plate 9 is put on. The cover plate 9 can be connected and cooperated with the door panel 3 by means of screw fixing or pin fixing.
[0029] Working principle: After the first layer of sound insulation cotton is fixedly installed in the space inside the cavity 4, the rod 6 is pushed down to different positions and locked in place by the limiting groove 5. The second layer of sound insulation cotton is fixedly installed while the first layer of sound insulation cotton is in a contracted state. Multiple layers of sound insulation cotton are installed in the same way. After ventilation is completed, closing the door panel 3 greatly improves the sound insulation effect.
[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A security door having a soundproofing structure, comprising a door body (1), characterized in that: The door body (1) has a ventilation hole (2) on the top. A door panel (3) is provided inside the ventilation hole (2). A cavity (4) is provided inside the door panel (3). A first upper sliding groove (101) and a first lower sliding groove (102) are provided inside the cavity (4). A second upper sliding groove (201) and a second lower sliding groove (202) are provided outside the cavity (4). Multiple limiting grooves (5) are provided at the lower end of all the sliding grooves.
2. The security door with sound insulation structure as claimed in claim 1, wherein: The second upper sliding groove (201) and the second lower sliding groove (202) penetrate the door panel (3). The first upper sliding groove (101) corresponds to the second upper sliding groove (201), and the first lower sliding groove (102) corresponds to the second lower sliding groove (202).
3. A security door having a soundproofing structure according to claim 2, characterised in that: A rod (6) is provided on both the second upper slide groove (201) and the second lower slide groove (202). The front end of the rod (6) passes through the second upper slide groove (201) and the second lower slide groove (202) respectively and is located in the first upper slide groove (101) and the first lower slide groove (102).
4. The security door with sound insulation structure as claimed in claim 3, wherein: The first upper slide groove (101), the second upper slide groove (201), the first lower slide groove (102) and the second lower slide groove (202) all have the space required for the lateral movement of the rod (6), and the limiting groove (5) is used to cooperate with the rod (6) to limit the rod (6).
5. The security door with sound insulation structure according to any one of claims 1-4, characterized in that: The space inside the cavity (4) is used to install sound insulation cotton.
6. A security door having a soundproofing structure according to claim 5, characterised in that: The sound insulation cotton is flexible sound insulation cotton.
7. The security door with sound insulation structure as claimed in claim 1, wherein: The ventilation hole (2) is provided with a ventilation window (7) for ventilation and air circulation, and the ventilation window (7) is grid-shaped.
8. The security door with sound insulation structure as claimed in claim 1 wherein: A hinge (8) is provided between the door panel (3) and the door body (1), and the door panel (3) is easily installed or disassembled through the hinge (8).
9. The security door with sound insulation structure as claimed in claim 1 wherein: The cavity (4) is provided with a cover plate (9) on the outside, and the cover plate (9) is engaged with the door panel by means of screws or pins.
Citation Information
Patent Citations
Wooden door with ventilating window
CN222576562U