Metal door with good sound insulation effect

Abstract

The metal door with the good sound insulation effect comprises a door body, limiting sliding grooves are formed in the four edges of the rear end of the door body, movable sealing rubber blocks are installed in the limiting sliding grooves and connected with the limiting sliding grooves in a sliding mode, a fixing base is arranged in the middle of the interior of the door body, and the fixing base is connected with the limiting sliding grooves in a sliding mode. The fixing base is fixedly welded to the door body, a threaded rod is installed in the fixing base, the two ends of the threaded rod are rotationally connected with the door body, a sliding block is installed outside the threaded rod, an inner threaded hole of the sliding block is in threaded fit with an outer thread of the threaded rod, and the outer wall of the sliding block and the fixing base are in sliding limiting. And connecting frames are arranged on the four edges of the sliding block, one end of each connecting frame is welded and fixed to the sliding block, the other end of each connecting frame is fixed to the inner side of the movable sealing rubber block, and in this way, the overall sound insulation performance can be improved on the premise that it is guaranteed that the metal door is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of metal doors, in particular to a metal door with good sound insulation effect. Background Art

[0002] Metal doors, as an important part of modern architecture, are deeply loved by people for their durability, beauty and elegance. This kind of door is usually made of steel, aluminum alloy or other alloy materials, with high compressive strength and corrosion resistance, suitable for various harsh environments. The manufacturing process of metal doors usually goes through multiple links such as precision design, cutting, welding, grinding and spraying, which can meet the decoration requirements of different styles and needs. In terms of functionality, metal doors not only have excellent anti-theft performance, but also have multiple functions such as fire prevention, sound insulation and heat preservation. In addition, metal doors are easy to clean and maintain, and only need a simple wipe to keep their luster as new. With the advancement of technology, modern metal doors have also incorporated intelligent elements such as fingerprint recognition, password locks, remote control, etc., which have brought great convenience to people's lives.

[0003] For example, the Chinese authorized patent "A door with good sound insulation effect" with announcement number CN211115618U includes a panel and a side panel. The panel is arranged in two groups with a gap. The outer end faces of the two groups of panels are fixedly connected to the side panels. The inner sides of the two groups of panels are installed with first sound-absorbing cotton. The inner sides of the side panels are located between the two groups of first sound-absorbing cotton and two groups of metal plates are fixedly connected, and there is a gap between the two groups of metal plates. The door body adopts a multi-level sound insulation method to improve the sound insulation effect of the door body. Secondly, by installing a convex metal spring on the outer end face of the side panel, after closing the door, the metal spring is squeezed toward the door frame under the elastic force of the metal spring, reducing the gap between the door and the door frame. At the same time, the second sound-absorbing cotton arranged on the inner side of the metal spring absorbs the noise between the door and the door frame, thereby improving the sound insulation effect at the gap between the door and the door frame.

[0004] Although the above-mentioned prior art has a certain sound insulation effect, a gap will be generated between the door body and the door frame after closing, and these gaps will cause the sound insulation effect to decrease. Although the gap between the door body and the door frame can be sealed by adding sealing strips, the addition of sealing strips will increase the difficulty of closing the door, and even cause the door body to be difficult to close. Therefore, it does not meet the existing needs. In this regard, we propose a metal door with good sound insulation effect. Utility Model Content

[0005] The utility model aims to provide a metal door with good sound insulation effect, so as to solve the problem raised in the above background technology of how to improve the sound insulation performance under the premise of ensuring the convenience of using the metal door.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal door with good sound insulation effect, comprising a door body, wherein limiting slide grooves are arranged on the four sides of the rear end of the door body, a movable sealing rubber block is installed inside the limiting slide groove, and the movable sealing rubber block is slidably connected to the limiting slide groove, a fixed seat is arranged at the middle position inside the door body, and the fixed seat is welded and fixed to the door body, a threaded rod is installed inside the fixed seat, and both ends of the threaded rod are rotatably connected to the door body, a sliding block is installed outside the threaded rod, the inner screw hole of the sliding block is threadedly matched with the outer thread of the threaded rod, and the outer wall of the sliding block is slidably limited with the fixed seat, and connecting frames are arranged on the four sides of the sliding block, one end of the connecting frame is welded and fixed to the sliding block, and the other end of the connecting frame is fixed to the inner side of the movable sealing rubber block.

[0007] Preferably, composite sound insulation layers are provided at the front and back of the door body, and the connecting frame is located in the middle of the two groups of composite sound insulation layers, the composite sound insulation layer consists of a sound absorbing layer, a barrier layer and a sound insulation base layer, the sound absorbing layer is located outside the barrier layer, and the sound absorbing layer is adhered and fixed to the barrier layer, the barrier layer is located outside the sound insulation base layer, and the barrier layer is adhered and fixed to the sound insulation base layer, and the sound absorbing layers in the two groups of composite sound insulation layers are adhered and fixed to the inner cavity of the door body.

[0008] Preferably, an adjusting knob is installed at a middle position of the rear end of the door body, the adjusting knob is rotatably connected to the door body, and a shaft at one end of the adjusting knob is fixed to the threaded rod.

[0009] Preferably, a door frame is further provided at the rear end of the door body, and the door frame is fixed to the wall, the door body and the door frame are connected by a hinge, and when the door body and the door frame are closed, the movable sealing rubber block contacts the four sides of the front end face of the door frame.

[0010] Preferably, a door handle is installed on one side of the rear end of the door body.

[0011] Preferably, the door body is made of aluminum alloy.

[0012] Preferably, the thickness of the composite sound insulation layer is thirty to fifty-five millimeters.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model arranges a movable sealing rubber block at the rear end of the door body to match the edge of the door frame. Under normal circumstances, the movable sealing rubber block is located inside the limiting slide groove, so it will not hinder the normal closing of the door. In order to avoid the gap between the door body and the door frame causing a decrease in the overall sound insulation performance, after the door body is closed, the user can turn the adjustment knob, and the connecting shaft at one end of the knob drives the threaded rod to rotate. Under the friction between the external thread of the threaded rod and the internal screw hole of the sliding block, the movable sealing rubber block is driven by the connecting frame to extend toward the outside of the limiting slide groove until it forms a tight fit with the outer wall of the door frame, thereby realizing the sealing of the gap between the door body and the door frame. This structure not only does not cause obstacles to daily opening and closing of the door, but also effectively improves the sound insulation performance of the metal door.

[0015] 2. The utility model is provided with a composite sound insulation layer, which is composed of a sound absorbing layer, a barrier layer and a sound insulation base layer. The sound absorbing layer is a foam sound insulation material, which is light and soft, and can absorb and isolate sound waves. The barrier layer is a high-density sound insulation felt, which has the characteristics of high density and can effectively absorb and reduce the transmission of sound waves. The sound insulation base layer is a damping sound insulation board, which has good damping performance and can reduce the vibration and transmission of sound waves. The combination of the three can form a multi-level sound insulation system, which greatly improves the sound insulation performance of the metal door. Secondly, it has strong durability. These materials are highly durable, can withstand friction and impact in daily use, are not easily damaged, and ensure the long-term use of the metal door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall stereogram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the movable sealing rubber block of the utility model in an extended state;

[0018] Figure 3 This is a schematic diagram of the internal structure of the door panel of the present utility model;

[0019] Figure 4 This is a schematic diagram of the composite sound insulation layer structure of the utility model.

[0020] In the figure: 1. door body; 2. movable sealing rubber block; 3. door handle; 4. adjusting knob; 5. limit slide groove; 6. composite sound insulation layer; 7. connecting frame; 8. fixing seat; 9. sliding block; 10. threaded rod; 11. sound absorbing layer; 12. barrier layer; 13. sound insulation base layer; 14. hinge. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-4 The utility model provides an embodiment: a metal door with good sound insulation effect, including a door body 1, and limited sliding grooves 5 are arranged on the four sides of the rear end of the door body 1. A movable sealing rubber block 2 is installed inside the limited sliding groove 5, and the movable sealing rubber block 2 is slidably connected with the limited sliding groove 5. A fixed seat 8 is arranged at the middle position inside the door body 1, and the fixed seat 8 is welded and fixed to the door body 1. A threaded rod 10 is installed inside the fixed seat 8, and both ends of the threaded rod 10 are rotatably connected with the door body 1. A sliding block 9 is installed outside the threaded rod 10, and the inner screw hole of the sliding block 9 is threadedly matched with the outer thread of the threaded rod 10, and the outer wall of the sliding block 9 is slidably limited with the fixed seat 8. Connecting frames 7 are arranged on the four sides of the sliding block 9, one end of the connecting frame 7 is welded and fixed to the sliding block 9, and the other end of the connecting frame 7 is fixed to the inner side of the movable sealing rubber block 2.

[0023] Under normal circumstances, the movable sealing rubber block 2 is located inside the limiting slide groove 5, so it will not hinder the normal closing of the door. In order to avoid the gap between the door body 1 and the door frame causing a decrease in the overall sound insulation performance, after the door body 1 is closed, the user can turn the adjusting knob 4, and the connecting shaft at one end thereof drives the threaded rod 10 to rotate. Under the friction between the external thread of the threaded rod 10 and the internal screw hole of the sliding block 9, combined with the guiding effect of the fixed seat 8 on the sliding block 9, the movable sealing rubber block 2 is driven by the connecting frame 7 to extend toward the outside of the limiting slide groove 5 until it forms a tight fit with the outer wall of the door frame, thereby achieving the sealing of the gap between the door body 1 and the door frame.

[0024] See also Figure 3 and Figure 4 Composite sound insulation layers 6 are arranged at the front and back of the door body 1, and the connecting frame 7 is located in the middle of the two groups of composite sound insulation layers 6. The composite sound insulation layer 6 is composed of a sound absorbing layer 11, a barrier layer 12 and a sound insulation base layer 13. The sound absorbing layer 11 is a foam sound insulation material with the characteristics of lightness and softness. The barrier layer 12 is a high-density sound insulation felt with high density characteristics, which can effectively absorb and reduce the transmission of sound waves. The sound insulation base layer 13 is a damping sound insulation board with good damping performance, which can reduce the vibration and transmission of sound waves. The sound absorbing layer 11 is located outside the barrier layer 12, and the sound absorbing layer 11 is bonded and fixed to the barrier layer 12. The barrier layer 12 is located outside the sound insulation base layer 13, and the barrier layer 12 is bonded and fixed to the sound insulation base layer 13. The sound absorbing layers 11 in the two groups of composite sound insulation layers 6 are bonded and fixed to the inner cavity of the door body 1.

[0025] See also Figure 1An adjusting knob 4 is installed at the middle position of the rear end of the door body 1. The adjusting knob 4 is rotatably connected to the door body 1, and the shaft at one end of the adjusting knob 4 is fixed to the threaded rod 10, so as to adjust the telescopic length of the movable sealing rubber block 2.

[0026] Furthermore, a door frame is provided at the rear end of the door body 1, and the door frame is fixed to the wall. The door body 1 and the door frame are connected by a hinge 14. When the door body 1 and the door frame are closed, the movable sealing block 2 is in contact with the four sides of the front end surface of the door frame. This structure not only does not hinder the daily opening and closing of the door, but also effectively improves the sound insulation performance of the metal door.

[0027] See also Figure 1 A door handle 3 is installed on one side of the rear end of the door body 1.

[0028] Furthermore, the door body 1 is made of aluminum alloy.

[0029] Furthermore, the thickness of the composite sound insulation layer 6 is 30 to 55 millimeters.

[0030] Working principle: The sound absorbing layer 11, the barrier layer 12 and the sound insulation base layer 13 can form a multi-layer sound insulation system, which greatly improves the sound insulation performance of the metal door. Secondly, the durability is strong. These materials are highly durable and can withstand the friction and impact in daily use. They are not easy to be damaged, which ensures the long-term use of the metal door.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A metal door with good sound insulation effect, comprising a door body (1), characterized in that: The door body (1) is provided with limited sliding grooves (5) on the four sides of the rear end, and a movable sealing rubber block (2) is installed inside the limited sliding groove (5), and the movable sealing rubber block (2) is slidably connected to the limited sliding groove (5). A fixed seat (8) is provided at the middle position inside the door body (1), and the fixed seat (8) is welded and fixed to the door body (1). A threaded rod (10) is installed inside the fixed seat (8), and both ends of the threaded rod (10) are rotatably connected to the door body (1). A sliding block (9) is installed outside the threaded rod (10), and the inner screw hole of the sliding block (9) is threadedly matched with the outer thread of the threaded rod (10), and the outer wall of the sliding block (9) is slidably limited with the fixed seat (8). The sliding block (9) is provided with connecting frames (7) on the four sides, one end of the connecting frame (7) is welded and fixed to the sliding block (9), and the other end of the connecting frame (7) is fixed to the inner side of the movable sealing rubber block (2).

2. A metal door with good sound insulation effect according to claim 1, characterized in that: Composite sound insulation layers (6) are arranged at the front and rear of the door body (1), and the connecting frame (7) is located between the two groups of composite sound insulation layers (6). The composite sound insulation layer (6) is composed of a sound absorbing layer (11), a barrier layer (12) and a sound insulation base layer (13). The sound absorbing layer (11) is located outside the barrier layer (12), and the sound absorbing layer (11) and the barrier layer (12) are bonded and fixed. The barrier layer (12) is located outside the sound insulation base layer (13), and the barrier layer (12) and the sound insulation base layer (13) are bonded and fixed. The sound absorbing layers (11) in the two groups of composite sound insulation layers (6) are bonded and fixed to the inner cavity of the door body (1).

3. A metal door with good sound insulation effect according to claim 1, characterized in that: An adjusting knob (4) is installed at the middle position of the rear end of the door body (1); the adjusting knob (4) is rotatably connected to the door body (1), and the shaft at one end of the adjusting knob (4) is fixed to the threaded rod (10).

4. A metal door with good sound insulation effect according to claim 1, characterized in that: The door body (1) is also provided with a door frame at the rear end, and the door frame is fixed to the wall. The door body (1) and the door frame are connected via a hinge (14). When the door body (1) and the door frame are closed, the movable sealing rubber block (2) contacts the four sides of the front end surface of the door frame.

5. A metal door with good sound insulation effect according to claim 1, characterized in that: A door handle (3) is installed on one side of the rear end of the door body (1).

6. A metal door with good sound insulation effect according to claim 1, characterized in that: The door body (1) is made of aluminum alloy.

7. A metal door with good sound insulation effect according to claim 2, characterized in that: The thickness of the composite sound insulation layer (6) is thirty to fifty-five millimeters.

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