High-strength sound insulation steel door

Abstract

The utility model discloses a high-strength sound insulation steel door which comprises a door frame and a steel door body. The steel door has the advantages that the sleeve, the pore plate, the ejector rod and the non-Newtonian fluid are adopted, when the steel door body is slowly closed, the steel door body slowly extrudes the ejector rod and pushes the pore plate to move in the sleeve, the non-Newtonian fluid penetrates through the pore plate, the spring is deformed and compressed, the buffering effect is achieved, the elastic coefficient of the spring is small, the non-Newtonian fluid is slowly extruded, the mobility is large, and the safety is high. When the steel door main body is quickly closed under the action of external force, the steel door main body is quickly contacted with the ejector rod and acts quickly, at the moment, the non-Newtonian fluid is quickly pressed, the flowability is reduced, the resistance is increased, and the pore plate and the ejector rod cannot quickly move under the action of counter-acting force, so that the problem that the steel door main body collides with the door frame vigorously is avoided; the collision influence is reduced, meanwhile, the hand clamping phenomenon caused by rapid closing of the steel door body is avoided, and the use safety and stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound insulation doors, in particular to a high-strength sound insulation steel door. Background Art

[0002] Soundproof doors are mainly used for sound insulation in places with high sound insulation requirements. The door panels are mainly made of new galvanized steel plates, and the interior uses professional sound insulation materials, damping sound insulation panels, sound insulation cotton, etc. as sound insulation fillers. At the same time, the most important thing about soundproof doors is the sealing treatment. The use of magnetically controlled sealing can ensure good sealing and sound insulation effects.

[0003] After searching, it was found that the publication number is CN217269824U, and the name is a steel fireproof soundproof door. The application proposes that some existing soundproof doors do not have a buffer structure when in use, so that the door leaf is closed when the angle is large, and the impact force of the door leaf on the hinge is further large. Long-term use will cause a certain degree of damage to the door frame, hinge and door leaf, and there are certain limitations in use. Through the arrangement of the plug-in column, the fixing sleeve, the fixing block, the movable rod, the compression spring a, the connecting block and the door leaf, the door frame and the hinge are prevented from being subjected to a huge impact force when the door leaf is suddenly closed at a large opening angle, which is It plays a certain protective role, however, this application uses a compression spring as a buffer structure. When the elastic coefficient of the compression spring is small, the force is large when the door is closed rapidly, and the spring with a small elastic coefficient is difficult to form an effective buffer and will quickly deform and compress, which will still cause collisions and easily cause hand pinching. When the spring elastic coefficient is large, it will make it difficult to close the door, affecting normal door closing use. The stability is poor and further improvements can be made. At the same time, the sound can also be transmitted along the surface of the door panel, and the sound insulation layer inside the door panel is difficult to weaken the sound transmitted from the door edge surface, resulting in poor sound insulation effect, which can be further improved.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a high-strength sound-insulating steel door, which has the advantages of being safer and more stable to use and having better sound insulation effect, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages of safer and more stable use and better sound insulation effect, the specific technical solutions adopted by the utility model are as follows:

[0009] A high-strength soundproof steel door comprises a door frame and a steel door body, wherein the steel door body consists of a front door panel and a rear door panel, and a partition strip is fixedly connected between the edges of the front door panel and the rear door panel, and the interior of the steel door body between the front door panel and the rear door panel is filled with soundproof cotton and a flame retardant layer, the steel door body is hinged to the door frame through a hinge, and a sleeve is embedded in the inner surface of the door frame corresponding to the edge surface of the steel door body, and a top rod is connected through one end of the sleeve, one end of the top rod is located inside the sleeve and is fixedly connected with a perforated plate, and a spring is connected between the orifice plate and the inner wall of the other end of the sleeve, and the interior of the sleeve is filled with a non-Newtonian fluid, a connecting rod is fixedly connected inside the steel door body, and the other end of the connecting rod is fixedly connected to a connecting plate, and a middle rod is fixedly connected between the connecting plates, and the outer side of the middle rod between the connecting plates is wrapped with sound-absorbing cotton.

[0010] Furthermore, the connecting rods are densely distributed in multiple groups at equal intervals, and the connecting rods are made of the same material as the outer shell of the steel door body.

[0011] Furthermore, a through hole is opened on the surface of the orifice plate, and the orifice plate is a circular plate, and the orifice plate is in sliding contact with the inner wall of the sleeve.

[0012] Furthermore, a sealing sleeve is embedded in one end of the sleeve, and the push rod passes through the sealing sleeve and is in sliding contact with the inner surface of the sealing sleeve.

[0013] Furthermore, the spacer is made of flame-retardant rubber and has a rectangular ring structure.

[0014] Furthermore, the middle rod and the connecting rod are made of the same material, and the diameter of the middle rod is smaller than the diameter of the connecting rod.

[0015] Furthermore, two ends of the spring are fixedly connected to the orifice plate and the inner wall of the sleeve respectively.

[0016] Furthermore, a sealing strip is fixedly adhered to the surface of the door frame.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a high-strength sound-insulating steel door, which has the following beneficial effects:

[0019] (1) The utility model adopts a sleeve, an orifice plate, a push rod and a non-Newtonian fluid. The steel door body is hinged to the door frame through a hinge. When the steel door body is slowly closed, the steel door body slowly squeezes the push rod, pushing the orifice plate to move in the sleeve, and the non-Newtonian fluid passes through the orifice plate, and the spring is deformed and compressed, playing a buffering role. The spring elastic coefficient is small, and the non-Newtonian fluid is slowly squeezed, with high fluidity and low resistance, which does not affect normal door closing. When the steel door body is quickly closed by an external force, the steel door body quickly contacts the push rod, and the push rod transmits the force to the orifice plate. The orifice plate is strongly squeezed and moves quickly. At this time, the non-Newtonian fluid is quickly compressed, the fluidity is reduced, the resistance becomes larger, and the reaction force prevents the orifice plate and the push rod from moving quickly, thereby avoiding the problem of the steel door body strongly colliding with the door frame, reducing the impact of the collision, and at the same time avoiding the hand pinching phenomenon caused by the rapid closing of the steel door body, thereby improving the safety and stability of use.

[0020] (2) The utility model adopts spacers and sound-absorbing cotton. The steel door body is composed of a front door panel and a rear door panel. The interior of the steel door body is filled with sound-absorbing cotton and a flame-retardant layer, which plays a good role in sound insulation and flame retardancy. At the same time, spacers are fixedly attached between the edges of the front door panel and the rear door panel. The spacers are made of flame-retardant rubber material and are elastic. They reduce the transmission of sound and the efficiency of sound transmission along the outer shell of the steel door body, thereby improving the sound insulation efficiency. At the same time, the interior of the steel door body is tied together by connecting rods and middle rods, which has higher integrity. The outer side of the middle rod is wrapped with sound-absorbing cotton to absorb sound vibration and reduce sound transmission efficiency, thereby further achieving the purpose of sound insulation and noise reduction. At the same time, the densely distributed connecting rods and middle rods play the role of skeleton support inside the steel door body, thereby improving the compressive strength of the steel door body and improving the overall stability and strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the external structure of a high-strength sound-insulating steel door proposed by the utility model;

[0023] Figure 2 It is a structural schematic diagram of the sleeve proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the installation of the middle pole proposed by the utility model;

[0025] Figure 4The utility model discloses a schematic diagram of the internal structure of a high-strength sound-insulating steel door.

[0026] In the figure:

[0027] 1. Door frame; 2. Steel door body; 3. Hinge; 4. Spacer; 5. Sealing strip; 6. Sleeve; 7. Spring; 8. Non-Newtonian fluid; 9. Orifice plate; 10. Push rod; 11. Sealing sleeve; 12. Connecting rod; 13. Connecting plate; 14. Middle rod; 15. Sound-absorbing cotton; 16. Sound-insulating cotton; 17. Flame retardant layer. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a high-strength sound-insulating steel door is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4As shown, a high-strength soundproof steel door according to an embodiment of the utility model includes a door frame 1 and a steel door body 2, the steel door body 2 is composed of a front door panel and a rear door panel, and a partition bar 4 is fixedly connected between the edges of the front door panel and the rear door panel, wherein the partition bar 4 is made of flame-retardant rubber, and the partition bar 4 is a rectangular ring structure, the size of which matches the front door panel and the rear door panel, and the interior of the steel door body 2 between the front door panel and the rear door panel is filled with sound insulation cotton 16 and a flame-retardant layer 17, the steel door body 2 is hinged to the door frame 1 through a hinge 3, and a sleeve 6 is embedded in the inner surface of the door frame 1 corresponding to the edge surface of the steel door body 2, and one end of the sleeve 6 is connected with a push rod 10, and one end of the push rod 10 is located inside the sleeve 6 A perforated plate 9 is fixedly connected, and a spring 7 is connected between the perforated plate 9 and the inner wall of the other end of the sleeve 6, and the sleeve 6 is filled with a non-Newtonian fluid 8. A connecting rod 12 is fixedly connected inside the steel door body 2, and a connecting plate 13 is fixedly connected to the other end of the connecting rod 12, and a middle rod 14 is fixedly connected between the connecting plates 13, and sound-absorbing cotton 15 is wrapped on the outside of the middle rod 14 between the connecting plates 13. The steel door body 2 is hinged to the door frame 1 through a hinge 3. When the steel door body 2 is slowly closed, the steel door body 2 slowly squeezes the push rod 10 to push the perforated plate 9 to move in the sleeve 6, and the non-Newtonian fluid 8 passes through the perforated plate 9, and the spring 7 is deformed and compressed to play a buffering role. The elastic coefficient of the spring 7 is small, and the non-Newtonian fluid 8 is Slow extrusion, high fluidity, low resistance, does not affect normal door closing. When the steel door body 2 is quickly closed by external force, the steel door body 2 quickly contacts the push rod 10, and the push rod 10 transmits the force to the orifice plate 9. The orifice plate 9 is strongly squeezed and moves quickly. At this time, the non-Newtonian fluid 8 is quickly compressed, the fluidity is reduced, the resistance becomes larger, and the reaction force prevents the orifice plate 9 and the push rod 10 from moving quickly, thereby avoiding the problem of the steel door body 2 colliding with the door frame 1 with great force, reducing the impact of the collision, and avoiding the hand pinching phenomenon caused by the rapid closing of the steel door body 2, thereby improving the safety and stability of use. At the same time, the steel door body 2 is filled with sound insulation cotton 16 and a flame retardant layer 17, which plays a good role. It has good sound insulation and flame retardant effects. At the same time, a partition strip 4 is fixedly pasted between the edges of the front door panel and the rear door panel. The partition strip 4 is made of flame retardant rubber material and is elastic, which reduces the transmission of sound and reduces the transmission efficiency of sound along the outer shell of the steel door body 2, thereby improving the sound insulation efficiency. At the same time, the interior of the steel door body 2 is tied together by a connecting rod 12 and a middle rod 14, and the integrity is higher. The outside of the middle rod 14 is wrapped with sound-absorbing cotton 15 to absorb sound vibrations and reduce sound transmission efficiency, thereby further achieving the purpose of sound insulation and noise reduction. At the same time, the densely distributed connecting rods 12 and middle rods 14 play the role of skeleton support inside the steel door body 2, thereby improving the compressive strength of the steel door body 2 and improving the overall stability and strength.

[0031] In one embodiment, multiple groups of connecting rods 12 are densely distributed at equal intervals, and the connecting rods 12 are made of the same material as the outer shell of the steel door body 2. The connecting rods 12 play a supporting role. The densely distributed connecting rods 12 expand the support range and improve the stability of the internal support.

[0032] In one embodiment, the surface of the orifice plate 9 is provided with through holes, and the orifice plate 9 is a circular plate, and the orifice plate 9 is in sliding contact with the inner wall of the sleeve 6 , and a plurality of through holes are arranged to improve the permeability of the non-Newtonian fluid 8 .

[0033] In one embodiment, a sealing sleeve 11 is embedded in one end of the sleeve 6 , and the push rod 10 passes through the sealing sleeve 11 and slides against the inner surface of the sealing sleeve 11 to prevent the non-Newtonian fluid 8 from leaking.

[0034] In one embodiment, the middle rod 14 is made of the same material as the connecting rod 12, and the diameter of the middle rod 14 is smaller than that of the connecting rod 12. The middle rod 14 plays a role in connecting and dispersing vibrations, thereby improving the suction efficiency of the sound-absorbing cotton 15 and reducing the sound transmission efficiency.

[0035] In one embodiment, two ends of the spring 7 are fixedly connected to the orifice plate 9 and the inner wall of the sleeve 6 respectively to prevent the spring 7 from loosening and falling off.

[0036] In one embodiment, a sealing strip 5 is fixedly attached to the surface of the door frame 1, which is a common structure in the art.

[0037] Working principle:

[0038] The steel door body 2 is hinged to the door frame 1 through the hinge 3. When the steel door body 2 is slowly closed, the steel door body 2 slowly squeezes the push rod 10, pushing the orifice plate 9 to move in the sleeve 6, and the non-Newtonian fluid 8 passes through the orifice plate 9. The spring 7 is deformed and compressed to play a buffering role. The elastic coefficient of the spring 7 is small, and the non-Newtonian fluid 8 is squeezed slowly, with high fluidity and low resistance, which does not affect the normal closing of the door. When the steel door body 2 is quickly closed by an external force, the steel door body 2 quickly contacts the push rod 10, and the push rod 10 transmits the force to the orifice plate 9. The orifice plate 9 is strongly squeezed and moves quickly. At this time, the non-Newtonian fluid 8 is quickly compressed, the fluidity is reduced, and the resistance becomes larger. The reaction force prevents the orifice plate 9 and the push rod 10 from moving quickly, thereby avoiding the problem of the steel door body 2 colliding with the door frame 1 with great force, reducing the impact of the collision, and at the same time avoiding the steel door body 2 from closing quickly. The finger-pinching phenomenon caused by this improves the safety and stability of use. At the same time, the interior of the steel door body 2 is filled with sound insulation cotton 16 and a flame retardant layer 17, which play a good role in sound insulation and flame retardancy. At the same time, a partition strip 4 is fixedly pasted between the edges of the front door panel and the rear door panel. The partition strip 4 is made of flame retardant rubber material and has elasticity, which reduces the transmission of sound and reduces the transmission efficiency of sound along the outer shell of the steel door body 2, thereby improving the sound insulation efficiency. At the same time, the interior of the steel door body 2 is tied together by the connecting rod 12 and the middle rod 14, and the integrity is higher. The outer side of the middle rod 14 is wrapped with sound-absorbing cotton 15 to absorb sound vibrations and reduce sound transmission efficiency, thereby further achieving the purpose of sound insulation and noise reduction. At the same time, the densely distributed connecting rods 12 and the middle rod 14 play the role of skeleton support inside the steel door body 2, thereby improving the compressive strength of the steel door body 2 and improving the overall stability and strength.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 high-strength sound-insulating steel door, characterized in that: The invention comprises a door frame (1) and a steel door body (2), wherein the steel door body (2) is composed of a front door panel and a rear door panel, and a spacer (4) is fixedly connected between the edges of the front door panel and the rear door panel, and a sound insulation cotton (16) and a flame retardant layer (17) are filled inside the steel door body (2) between the front door panel and the rear door panel, and the steel door body (2) is hinged to the door frame (1) through a hinge (3), and a sleeve (6) is embedded in the inner surface of the door frame (1) corresponding to the edge surface of the steel door body (2), and one end of the sleeve (6) is penetrated and connected to a top rod (1 0), one end of the push rod (10) is located inside the sleeve (6) and is fixedly connected to a perforated plate (9), and a spring (7) is connected between the perforated plate (9) and the inner wall of the other end of the sleeve (6), and the sleeve (6) is filled with a non-Newtonian fluid (8), the steel door body (2) is fixedly connected to a connecting rod (12), and the other end of the connecting rod (12) is fixedly connected to a connecting plate (13), and a middle rod (14) is fixedly connected between the connecting plates (13), and the outer side of the middle rod (14) between the connecting plates (13) is wrapped with sound-absorbing cotton (15).

2. A high-strength sound-insulating steel door according to claim 1, characterized in that: The connecting rods (12) are densely distributed in multiple groups at equal intervals, and the connecting rods (12) are made of the same material as the outer shell of the steel door body (2).

3. A high-strength sound-insulating steel door according to claim 1, characterized in that: The surface of the orifice plate (9) is provided with through holes, the orifice plate (9) is a circular plate, and the orifice plate (9) is in sliding contact with the inner wall of the sleeve (6).

4. A high-strength sound-insulating steel door according to claim 1, characterized in that: A sealing sleeve (11) is embedded in one end of the sleeve (6), and the push rod (10) passes through the sealing sleeve (11) and is in sliding contact with the inner surface of the sealing sleeve (11).

5. The high-strength sound-insulating steel door according to claim 1, characterized in that: The spacer (4) is made of flame-retardant rubber and is a rectangular ring structure.

6. The high-strength sound-insulating steel door according to claim 1, characterized in that: The middle rod (14) and the connecting rod (12) are made of the same material, and the diameter of the middle rod (14) is smaller than the diameter of the connecting rod (12).

7. The high-strength sound-insulating steel door according to claim 1, characterized in that: The two ends of the spring (7) are respectively fixedly connected to the orifice plate (9) and the inner wall of the sleeve (6).

8. The high-strength sound-insulating steel door according to claim 1, characterized in that: A sealing strip (5) is fixedly adhered to the surface of the door frame (1).

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