Automatic sealing device for soundproof door bottom

Abstract

This utility model relates to the field of soundproof door technology, specifically an automatic lifting and sealing device for the bottom of a soundproof door. It includes a door panel, a wiring groove, and a fixing seat. An assembly groove is formed on one outer wall of the door panel, and door handles are provided on both outer walls of the door panel. A wiring groove is formed on one side of the lower outer wall of the door panel, and the wiring groove is internally connected to the assembly groove. Support wheels are pin-connected to both sides of the inner wall of the wiring groove. Slide rails are bonded and fixed to both sides of the inner wall of the assembly groove. A connecting rod is provided inside the slide rail, and a support column is threaded to the end of the connecting rod. A fixing seat is screwed to the lower outer wall of the door panel, and a connecting seat is provided inside the fixing seat. A sealing strip is snapped onto the lower outer wall of the connecting seat. When the door panel is unlocked, the sealing strip is lifted off the ground, ensuring smoothness during subsequent door opening and closing, avoiding friction between the sealing strip and the ground from affecting the difficulty of opening and closing the door panel, and improving the user's ease of opening and closing the door panel.

Description

Technical Field

[0001] This utility model relates to the field of soundproof door technology, specifically to an automatic lifting and sealing device for the bottom of a soundproof door. Background Technology

[0002] The core function of a soundproof door is to effectively block the transmission of sound through special materials, structural design, and sealing treatment, thereby creating a quiet, comfortable, or functionally suitable environment for different scenarios. Soundproof doors can be classified by material, including steel soundproof doors, wooden soundproof doors, glass soundproof doors, and PVC soundproof doors. Wooden soundproof doors are further divided into solid wood doors and solid wood composite doors. Solid wood doors have better sound insulation. The automatic lifting and lowering sealing device at the bottom of the soundproof door is a key component to improve the sealing performance of the door. It is mainly used to solve the problem of sound leakage through the gap between the bottom of the door and the ground. The automatically lifting and lowering sealing strip fills the gap, enhancing the sound insulation, dust prevention, insect prevention, and even moisture prevention effects.

[0003] CN210564235U discloses a soundproofing device for the bottom of an automatic lifting door with protective functions. The device includes: a mounting frame, sound-absorbing cotton, aluminum alloy plates, mounting holes, a sealing device, a sealing ring, a sound-absorbing cotton ring, a sealing block, a moving rod, an extrusion groove, a spring push rod, an extrusion block, and a return spring. Aluminum alloy plates are fixedly connected to both sides of the mounting frame. Sound-absorbing cotton is fixedly connected inside the two aluminum alloy plates. A spring push rod is fixedly connected to the bottom end between the two aluminum alloy plates. This device, by incorporating a spring push rod, a sealing device, sound-absorbing cotton, and a sound-absorbing cotton ring, enables the soundproofing device for the bottom of the automatic lifting door to automatically extrude and retract the sealing device to seal the bottom of the door when the door is opened and closed. The sound-absorbing cotton and its ring provide noise reduction to the sealed area at the bottom of the door.

[0004] While the existing technology CN210564235U has many advantages in use, it still has the following problems: the smoothness of opening the door is not perfect. Although the automatic extrusion and retraction are achieved through opening and closing the door, when the door is initially pushed open, the sealing device is still in contact with the ground because the soundproof door is still inside the door frame, which makes the initial opening of the soundproof door difficult. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides an automatic lifting and sealing device for the bottom of a soundproof door.

[0006] The technical solution adopted by this utility model to solve its technical problem is an automatic lifting and sealing device for the bottom of a soundproof door, including a door panel, a wiring groove, and a fixing seat. An assembly groove is opened on one side of the outer wall of the door panel, and door handles are provided on both sides of the outer wall of the door panel. A wiring groove is opened on one side of the lower outer wall of the door panel, and the wiring groove is internally connected to the assembly groove. Support wheels are pin-connected to both sides of the inner wall of the wiring groove. Slide rails are glued and fixed to both sides of the inner wall of the assembly groove. A connecting rod is provided inside the slide rail, and a support column is threaded to the end of the connecting rod. A fixing seat is screwed to the lower outer wall of the door panel, and a connecting seat is provided inside the fixing seat. A sealing strip is snapped onto the lower outer wall of the connecting seat.

[0007] By adopting the above technical solution, the assembly groove and wiring groove achieve a concealed layout for the pull rope and support wheel, avoiding external exposure that could lead to wear or a decrease in aesthetics. The support wheel is located at the pin position on the outside of the door panel, which can be concealed by subsequent painting, ensuring the flatness of the outer surface of the door panel after molding. The support wheel can rotate inside the wiring groove, restricting the movement path of the pull rope. When the user rotates the door handle, the door handle pulls the pull rope through the connecting rod and support column, thereby pulling the connecting seat upward inside the fixed seat, causing the sealing strip to detach from the ground. This ensures the smoothness of the subsequent door panel opening and closing process, avoids the friction between the sealing strip and the ground affecting the difficulty of opening and closing the door panel, and improves the user's ability to smoothly open and close the door panel.

[0008] Specifically, a door lock is connected to the screw inside the assembly slot, and the door handle is connected to the door lock.

[0009] By adopting the above technical solution, the door handle is directly connected to the door lock, ensuring that the user's opening and closing actions are precisely controlled by the door lock when rotating the door handle.

[0010] Specifically, the support column is located inside the assembly groove, and arc-shaped baffles are welded to both outer walls of the support column, with the arc-shaped baffles corresponding to the positions of the slide rails.

[0011] By adopting the above technical solution, the arc-shaped baffle corresponds to the position of the slide rail. When the support column moves inside the slide rail, the arc-shaped baffle covers the cavity inside the slide rail, preventing the inside of the assembly slot from being exposed and maintaining the overall flatness and aesthetics of the door panel.

[0012] Specifically, a pull rope is provided on the outside of the support wheel, and the two ends of the pull rope are respectively bonded to the upper end face of the support column and the connecting seat. A through hole for the movement of the pull rope is opened at the upper end of the fixed seat.

[0013] By adopting the above technical solution, the movement of the pull rope can follow the unlocking action of the door handle, thereby enabling the sealing strip to be raised and lowered synchronously when the door is opened and closed. The through hole provides a precise movement channel for the pull rope, avoiding friction between the pull rope and the fixed seat during transmission and ensuring the stability of the pull force transmission.

[0014] Specifically, the outer wall of the connecting seat is screwed with sliders arranged in a rectangular array, and the inner wall of the fixing seat is provided with sliding grooves arranged in a rectangular array, and the sliders are slidably installed inside the sliding grooves.

[0015] By adopting the above technical solution, the slider and the groove cooperate to limit the movement direction of the connecting seat, ensuring that the connecting seat only moves up and down in the vertical direction. Moreover, the multiple sliders are evenly distributed, which can disperse the force on the connecting seat and reduce the shaking during the lifting process.

[0016] Specifically, spring seats are provided on both sides of the upper outer wall of the connecting seat and both sides of the upper inner wall of the fixed seat. A support spring is provided inside the spring seat, and the connecting seat is elastically connected to the fixed seat through the support spring.

[0017] By adopting the above technical solution, when the door is unlocked, the connecting seat is pulled up by the pull rope, and the connecting seat compresses and stores energy in the support spring. When the door is locked, the door handle is in a horizontal state, the support spring releases its elasticity, and drives the connecting seat to move down and reset, so that the sealing strip can contact the ground and fill the gap between the door panel and the ground, ensuring the sound insulation performance of the door panel.

[0018] Specifically, a linkage rod is welded to one side of the outer wall of the door handle, and the connecting rod passes through the end of the slide rail and is connected to the linkage rod by a pin.

[0019] By adopting the above technical solution, the rotation of the door handle directly drives the movement of the connecting rod through the linkage rod, realizing the synchronous drive of the sealing strip when the door handle is unlocked, while the pin connection ensures that the subsequent support column and connecting rod can be disassembled and maintained.

[0020] The beneficial effects of this utility model are:

[0021] The automatic lifting and sealing device at the bottom of the soundproof door described in this utility model can pull the connecting seat upward inside the fixed seat when the door panel is unlocked, so that the sealing strip is lifted off the ground, ensuring the smoothness of the subsequent door panel opening and closing process, avoiding the friction between the sealing strip and the ground from affecting the difficulty of opening and closing the door panel, and improving the smoothness of the user's opening and closing of the door panel. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the main body of the door panel structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the door panel structure of this utility model;

[0025] Figure 3 This is an enlarged schematic diagram of the assembly groove structure of this utility model;

[0026] Figure 4 This is an exploded view of the fixing base structure of this utility model;

[0027] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of structure A in the middle.

[0028] In the diagram: 1. Door panel; 11. Door lock; 12. Door handle; 13. Assembly slot; 14. Linkage rod; 15. Slide rail; 16. Support column; 17. Connecting rod; 18. Arc-shaped baffle; 2. Wiring channel; 21. Support wheel; 22. Pull rope; 3. Fixing seat; 31. Connecting seat; 32. Support spring; 33. Slider; 34. Sealing strip. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the automatic lifting and sealing device for the bottom of a soundproof door according to this utility model includes a door panel 1, a wiring groove 2, and a fixing seat 3. An assembly groove 13 is provided on one outer wall of the door panel 1, and door handles 12 are provided on both outer walls of the door panel 1. A wiring groove 2 is provided on one side of the lower outer wall of the door panel 1. The wiring groove 2 is internally connected to the assembly groove 13. Support wheels 21 are pin-connected to both sides of the inner wall of the wiring groove 2. Slide rails 15 are glued and fixed to both sides of the inner wall of the assembly groove 13. A connecting rod 17 is provided inside the slide rail 15. A support column 16 is threadedly connected to the end of the connecting rod 17. The fixing seat 3 is screwed to the lower outer wall of the door panel 1. A connecting seat 31 is provided inside the fixing seat 3. A sealing strip 34 is snapped onto the lower outer wall of the connecting seat 31.

[0031] In use, the assembly groove 13 and the wiring groove 2 achieve a concealed layout for the pull rope 22 and the support wheel 21, avoiding external exposure that could lead to wear or a decrease in aesthetics. The support wheel 21 is located at the pin position on the outside of the door panel 1, which can be covered by subsequent painting to ensure the flatness of the outer surface of the door panel 1 after molding. The support wheel 21 can rotate inside the wiring groove 2, restricting the movement path of the pull rope 22. When the user rotates the door handle 12, the door handle 12 pulls the pull rope 22 through the connecting rod 17 and the support column 16, which in turn pulls the connecting seat 31 upward inside the fixed seat 3, causing the sealing strip 34 to lift off the ground. This ensures the smoothness of the subsequent opening and closing of the door panel 1, avoids the friction between the sealing strip 34 and the ground affecting the difficulty of opening and closing the door panel 1, and improves the smoothness of the user's opening and closing of the door panel 1.

[0032] To unlock, for example, such as Figure 2 As shown, a door lock 11 is connected to the screw inside the assembly slot 13, and the door handle 12 is connected to the door lock 11.

[0033] When in use, the door handle 12 is directly connected to the door lock 11, ensuring that when the user rotates the door handle 12, the opening and closing action of the door lock 11 is precisely controlled.

[0034] For aesthetic purposes, an example is shown below. Figure 5 As shown, the support column 16 is located inside the assembly groove 13. Arc-shaped baffles 18 are welded to both outer walls of the support column 16, and the arc-shaped baffles 18 correspond to the positions of the slide rail 15.

[0035] When in use, the arc-shaped baffle 18 corresponds to the slide rail 15. When the support column 16 moves within the slide rail 15, the arc-shaped baffle 18 covers the internal cavity of the slide rail 15, preventing the interior of the assembly slot 13 from being exposed and maintaining the overall flatness and aesthetics of the door panel 1.

[0036] For example, to enable coordinated movement, such as... Figure 3 As shown, a pull rope 22 is provided on the outside of the support wheel 21. The two ends of the pull rope 22 are respectively bonded to the support column 16 and the upper end face of the connecting seat 31. A through hole for the pull rope 22 to move is provided on the upper end of the fixed seat 3.

[0037] When in use, the pull rope 22 moves in sync with the unlocking action of the door handle 12, thus enabling the sealing strip 34 to rise and fall synchronously when the door is opened and closed. The through hole provides a precise movement channel for the pull rope 22, preventing the pull rope 22 from rubbing against the fixed seat 3 during transmission and ensuring the stability of the pulling force transmission.

[0038] To limit the movement trajectory, for example, such as Figure 4As shown, the outer wall of the connecting seat 31 is screwed with sliders 33 arranged in a rectangular array, and the inner wall of the fixing seat 3 is provided with sliding grooves arranged in a rectangular array, and the sliders 33 are slidably installed inside the sliding grooves.

[0039] When in use, the slider 33 cooperates with the slide groove to restrict the movement direction of the connecting seat 31, ensuring that the connecting seat 31 only moves up and down in the vertical direction. Moreover, the multiple sliders 33 are evenly distributed, which can disperse the force on the connecting seat 31 and reduce the shaking during the lifting process.

[0040] To drive a reset, for example, such as Figure 4 As shown, spring seats are provided on both sides of the upper outer wall of the connecting seat 31 and both sides of the upper inner wall of the fixed seat 3. A support spring 32 is provided inside the spring seat, and the connecting seat 31 is elastically connected to the fixed seat 3 through the support spring 32.

[0041] When the door is unlocked, the connecting seat 31 is pulled up by the pull rope 22, and the connecting seat 31 compresses and stores energy in the support spring 32. When the door lock 11 is stopped, the door handle 12 is in a horizontal state, the support spring 32 releases its elasticity, and drives the connecting seat 31 to move down and reset, so that the sealing strip 34 can contact the ground and fill the gap between the door panel 1 and the ground, ensuring the sound insulation performance of the door panel 1.

[0042] To drive movement, for example, such as Figure 3 As shown, a linkage rod 14 is welded to one side of the outer wall of the door handle 12, and a connecting rod 17 passes through the end of the slide rail 15 and is connected to the linkage rod 14 by a pin.

[0043] In use, the rotation of the door handle 12 directly drives the connecting rod 17 to move through the linkage rod 14, so that the rotation of the door handle 12 when unlocking synchronously drives the sealing strip 34. The pin connection ensures that the subsequent support column 16 and connecting rod 17 can be disassembled and maintained.

[0044] When this utility model is in use, the door handle 12 is in a horizontal position when the door is in the closed and locked state. At this time, the support spring 32 is in a naturally extended state, and its elasticity pushes the connecting seat 31 to move downward in the fixed seat 3. The sealing strip 34 at the lower end of the connecting seat 31 then descends and fits tightly against the ground, filling the gap between the door panel 1 and the ground.

[0045] When the door needs to be opened, the user turns the door handle 12. The rotation of the door handle 12 drives the linkage rod 14 welded to it to rotate synchronously. The linkage rod 14 is connected to the connecting rod 17 through the pin and drives it to move in the slide rail 15. The support column 16 at the end of the connecting rod 17 moves together with the connecting rod 17. The movement of the support column 16 pulls the pull rope 22 connected to it. The pull rope 22 is supported by the support wheel 21 in the cable tray 2 and pulls the connecting seat 31 to move upward. When the connecting seat 31 moves upward, it compresses the support spring 32 to store energy. At the same time, the connecting seat 31 drives the sealing strip 34 to rise and lift off the ground.

[0046] After the door is opened and moved into place, the user releases the door handle 12, and the torsional force of the door lock 11 drives the door handle 12 to reset. The rotation of the door handle 12 drives the support column 16 to reset through the linkage rod 14 and the connecting rod 17. The tension of the pull rope 22 is released, the support spring 32 releases the stored elasticity, and pushes the connecting seat 31 to move downward in the fixed seat 3. The slider 33 is smoothly guided in the slide groove, and the sealing strip 34 at the lower end of the connecting seat 31 descends again and fits tightly against the ground, thus restoring the seal between the door panel 1 and the ground.

[0047] It should be noted that this utility model is an automatic lifting and sealing device for the bottom of a soundproof door. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A soundproof door bottom automatic lifting sealing device, characterized in that, The device includes a door panel (1), a wiring groove (2), and a fixing seat (3). The door panel (1) has an assembly groove (13) on one side of its outer wall. Both sides of the door panel (1) are provided with door handles (12). The door panel (1) has a wiring groove (2) on one side of its lower outer wall. The wiring groove (2) is connected to the assembly groove (13). Both sides of the inner wall of the wiring groove (2) are connected with support wheels (21) by pins. Both sides of the inner wall of the assembly groove (13) are glued and fixed with slide rails (15). The slide rails (15) are provided with connecting rods (17). The end of the connecting rods (17) is threaded with a support column (16). The fixing seat (3) is screwed to the lower outer wall of the door panel (1). The fixing seat (3) is provided with a connecting seat (31). The lower outer wall of the connecting seat (31) is fitted with a sealing strip (34).

2. A self-lifting sealing device for the bottom of a soundproof door according to claim 1, characterized in that, The assembly slot (13) is screwed to a door lock (11), and the door handle (12) is connected to the door lock (11).

3. A self-lifting sealing device for the bottom of a soundproof door according to claim 1, characterized in that, The support column (16) is located inside the assembly groove (13). Arc-shaped baffles (18) are welded to both outer walls of the support column (16). The arc-shaped baffles (18) correspond to the positions of the slide rail (15).

4. A self-lifting sealing device for the bottom of a soundproof door according to claim 1, characterized in that, A pull rope (22) is provided on the outside of the support wheel (21). The two ends of the pull rope (22) are respectively bonded to the upper surface of the support column (16) and the connecting seat (31). The upper end of the fixed seat (3) is provided with a through hole for the movement of the pull rope (22).

5. A self-lifting sealing device for the bottom of a soundproof door according to claim 1, characterized in that, The outer wall of the connecting seat (31) is screwed with sliders (33) arranged in a rectangular array, and the inner wall of the fixing seat (3) is provided with sliding grooves arranged in a rectangular array. The sliders (33) are slidably installed inside the sliding grooves.

6. A self-lifting sealing device for a door bottom according to claim 1, wherein Spring seats are provided on both sides of the upper outer wall of the connecting seat (31) and both sides of the upper inner wall of the fixed seat (3). A support spring (32) is provided inside the spring seat. The connecting seat (31) is elastically connected to the fixed seat (3) through the support spring (32).

7. A self-lifting sealing device for a door bottom according to claim 1, wherein A linkage rod (14) is welded to one side of the outer wall of the door handle (12), and the connecting rod (17) passes through the end of the slide rail (15) and is connected to the linkage rod (14) by a pin.

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