A new type of concrete sealing door

By incorporating a sealing mechanism and an opening/closing mechanism into the sealed door, and combining a foam layer, a rubber layer, and a steel-concrete slab design, the problems of poor sealing effect and low strength of the sealed door are solved, achieving better sealing performance and ease of use.

CN224432400UActive Publication Date: 2026-06-30金鑫科技集团有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
金鑫科技集团有限公司
Filing Date
2025-05-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing sealed doors have poor sealing performance and low door strength, which cannot meet actual needs.

Method used

A novel concrete sealing door was designed. By setting a sealing mechanism and an opening and closing mechanism on the sealing door, and utilizing the cooperation of sealing strips and elastic blocks, the sealing effect is improved. At the same time, foam cotton layer and rubber layer are used to enhance the impact resistance, and steel plate and concrete plate are used to improve the strength of the door body.

Benefits of technology

It improves the sealing effect and impact resistance of the sealed door, extends its service life, and enhances its ease of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224432400U_ABST
    Figure CN224432400U_ABST
Patent Text Reader

Abstract

This utility model discloses a novel concrete sealing door, relating to the field of sealing door technology. It includes a door frame, with a sealing door hinged to the inner front end of the frame. One end of the sealing door is equipped with a sealing mechanism. When the sealing door is closed, a first sealing strip can engage with a second sealing groove, and a second sealing strip can engage with the first sealing groove. When the second sealing strip is engaged in the first sealing groove, an elastic block can compress the mounting plate, which in turn compresses the second sealing strip, ensuring it is tightly engaged in the first sealing groove. This improves the sealing effect of the door. The foam and rubber layers inside the sealing door enhance its impact resistance, reducing the likelihood of breakage when subjected to shock waves. The use of steel and concrete plates improves the safety performance of the sealing door and effectively extends its service life.
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Description

Technical Field

[0001] This utility model relates to the field of sealing door technology, specifically to a novel concrete sealing door. Background Technology

[0002] A sealing door is a type of door that increases airtightness. It is a protective device installed on buildings, mainly used to block shock waves and isolate toxic gases. In the event of an emergency, closing the sealing door can provide protection and ensure the safety of personnel. Reinforced concrete doors have advantages such as low price and good protection against early radiation.

[0003] Concrete sealing doors are widely used in various locations requiring high security, such as bank vaults, important warehouses, nuclear power plants, and underground projects. In these situations, concrete sealing doors can effectively resist attacks in extreme circumstances such as theft, robbery, radiation, and explosions, ensuring the safety of personnel.

[0004] The existing technology has the following problems:

[0005] In actual use, existing sealed doors have poor sealing performance and low door strength, which cannot meet people's actual needs. Utility Model Content

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A novel concrete sealing door includes a door frame, a sealing door hinged to the inner front end of the door frame, a sealing mechanism at one end of the sealing door, a sealing groove 1 and a sealing groove 2 respectively at one end of the inner side of the door frame, and an opening and closing mechanism at the upper front end of the door frame.

[0008] The sealing mechanism includes a sealing strip, the bottom end of which is fixedly connected to the right rear end of the sealing door. A groove is provided on one side of the rear end of the sealing door. Limiting grooves are symmetrically provided on both inner walls of the groove. An elastic block is fixedly provided at the bottom of the groove. An installation plate is slidably installed inside the limiting groove. A second sealing strip is fixedly connected to the front end of the installation plate.

[0009] Preferably, the top of the elastic block is fixedly connected to the rear end of the mounting plate, the first sealing strip is in contact with the inside of the second sealing groove, the second sealing strip is in contact with the inside of the first sealing groove, and both are movably installed.

[0010] Preferably, the opening and closing mechanism includes a horizontal frame, the bottom end of which is fixedly connected to the upper front end of the door frame. A sliding rod is fixedly provided inside the horizontal frame, and a slider is slidably installed outside the sliding rod. A sliding groove is provided through the bottom end of the horizontal frame. An extension block is fixedly provided at the lower end of the slider. A rotating shaft is fixedly provided at the lower end of the extension block. A spring is sleeved on the left end of the sliding rod. A rotating plate is limited to rotate outside the rotating shaft. A rotating plate is movably installed at one end of the rotating plate. A support block is fixedly provided on the upper front end of the sealed door, and a rotating shaft is fixedly installed at the upper end of the support block.

[0011] Preferably, the two ends of the spring are fixedly connected to the opposite surfaces of the horizontal frame and the slider, respectively, and the extension block extends out of the interior of the horizontal frame through the slide groove and is slidably installed with the slide groove.

[0012] Preferably, the first rotating plate and the second rotating plate are connected by a hinge shaft for limited rotational installation, and the bottom middle part of the second rotating plate is rotatably installed with the outside of the second rotating shaft.

[0013] Preferably, the inner wall of the sealing door is symmetrically provided with mounting holes one and two, a steel plate is provided at the inner rear end of the sealing door, multiple sets of reinforcing bars one are symmetrically fixed at the outer end of the steel plate, foam cotton layers are fixed on both outer walls of the steel plate, a rubber layer is fixed on the outer side of the foam cotton layers, a concrete slab is provided at the inner front end of the sealing door, and multiple sets of reinforcing bars two are symmetrically fixed on the outer side of the concrete slab.

[0014] Preferably, the first and second reinforcing bars are fixedly installed inside the first and second mounting holes, respectively, and the steel plate and concrete slab are fixedly installed inside the sealing door.

[0015] Preferably, a handle is fixedly provided on one side of the front end of the sealed door.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model provides a novel concrete sealing door. Through a sealing mechanism, when the door is closed, sealing strip one can be engaged in sealing groove two, and sealing strip two can be engaged in sealing groove one. When sealing strip two is engaged in sealing groove one, an elastic block can compress the mounting plate, and the compressed mounting plate further compresses sealing strip two, thus ensuring that sealing strip two is tightly engaged in sealing groove one. This improves the sealing effect of the door. The foam cotton layer and rubber layer inside the door enhance its impact resistance, reducing the probability of breakage when subjected to shock waves. The use of steel plates and concrete slabs improves the safety performance of the door and effectively extends its service life.

[0018] This utility model provides a novel concrete sealing door. Through its opening and closing mechanism, the user opens the sealing door using a handle. During the opening process, a second rotating plate is driven to rotate via a support block and a second rotating shaft. The rotation of the second rotating plate pulls a first rotating plate, which in turn moves the first rotating plate via a first rotating shaft, causing an extension block and a slider to slide within the horizontal frame. As the slider slides on the sliding rod, it compresses a spring. After a person passes through the door frame, the sealing door is no longer pulled by the hand, and the spring is no longer compressed. The spring's elasticity pushes the slider back to its original position to the right. During this reset process, the second rotating plate, along with the second rotating plate, pulls the sealing door back to its original position, thus closing the door and improving its ease of use. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the novel concrete sealing door of this utility model;

[0020] Figure 2 This is a structural schematic diagram showing the details of the novel concrete sealing door of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the sealing door of this utility model;

[0022] Figure 4 This is a schematic diagram of the sealing mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the opening and closing mechanism of this utility model.

[0024] In the diagram: 1. Door frame; 2. Sealed door; 3. Sealing mechanism; 4. Sealing groove one; 5. Sealing groove two; 6. Opening and closing mechanism; 7. Handle; 8. Mounting hole one; 9. Mounting hole two; 10. Steel plate; 11. Reinforcing bar one; 12. Foam layer; 13. Rubber layer; 14. Concrete slab; 15. Reinforcing bar two; 31. Sealing strip one; 32. Groove; 33. Limiting groove; 34. Elastic block; 35. Mounting plate; 36. Sealing strip two; 61. Horizontal frame; 62. Sliding rod; 63. Sliding block; 64. Sliding groove; 65. Extension block; 66. Rotating shaft one; 67. Spring; 68. Rotating plate one; 69. Rotating plate two; 610. Support block; 611. Rotating shaft two. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments:

[0026] like Figures 1-5As shown, this utility model provides a novel concrete sealing door, including a door frame 1, a sealing door 2 hinged to the inner front end of the door frame 1, a sealing mechanism 3 at one end of the sealing door 2, a sealing groove 4 and a sealing groove 5 respectively at one end of the inner side of the door frame 1, and an opening and closing mechanism 6 at the upper front end of the door frame 1.

[0027] The inner wall of the sealed door 2 is symmetrically provided with mounting holes 1 8 and 2 9 respectively. The rear end of the inner side of the sealed door 2 is provided with a steel plate 10. Multiple sets of steel bars 11 are symmetrically fixed at the outer end of the steel plate 10. Foam cotton layers 12 are fixed on both sides of the outer wall of the steel plate 10. A rubber layer 13 is fixed on the outer side of the foam cotton layer 12. The front end of the inner side of the sealed door 2 is provided with a concrete slab 14. Multiple sets of steel bars 2 15 are symmetrically fixed on the outer side of the concrete slab 14.

[0028] Reinforcing bars 11 and 15 are fixedly installed inside mounting holes 8 and 2, respectively, and steel plate 10 and concrete slab 14 are fixedly installed inside sealing door 2.

[0029] A handle 7 is fixedly provided on one side of the front end of the sealed door 2.

[0030] In this design, the foam layer 12 and rubber layer 13 inside the sealing door 2 can improve the impact resistance of the sealing door 2 and reduce the probability of the sealing door 2 breaking when subjected to shock waves. The steel plate 10 and concrete slab 14 can improve the safety performance of the sealing door 2 and effectively extend the service life of the sealing door 2. The fixing can be completed by inserting the steel bars on the steel plate 10 and concrete slab 14 into the mounting holes 8 and 9 respectively.

[0031] like Figure 4 As shown, the sealing mechanism 3 includes a sealing strip 31. The bottom end of the sealing strip 31 is fixedly connected to the right rear end of the sealing door 2. A groove 32 is provided on one side of the rear end of the sealing door 2. Limiting grooves 33 are symmetrically provided on both sides of the inner wall of the groove 32. An elastic block 34 is fixedly provided at the bottom of the groove 32. An installation plate 35 is slidably installed inside the limiting groove 33. A sealing strip 36 is fixedly connected to the front end of the installation plate 35.

[0032] The top of the elastic block 34 is fixedly connected to the rear end of the mounting plate 35. The sealing strip 31 fits into the interior of the sealing groove 5, and the sealing strip 36 fits into the interior of the sealing groove 4. Both are movably installed.

[0033] In this design, the mounting plate 35 can slide within the limiting groove 33 to limit its movement. The elastic block 34 is a "Z"-shaped plate made of elastic material, which facilitates the compression effect on the sealing strip.

[0034] like Figure 5As shown, the opening and closing mechanism 6 includes a horizontal frame 61. The bottom end of the horizontal frame 61 is fixedly connected to the upper front end of the door frame 1. A slide rod 62 is fixedly installed inside the horizontal frame 61. A slider 63 is slidably installed outside the slide rod 62. A sliding groove 64 is opened through the bottom end of the horizontal frame 61. An extension block 65 is fixedly installed at the lower end of the slider 63. A rotating shaft 66 is fixedly installed at the lower end of the extension block 65. A spring 67 is sleeved on the left end of the slide rod 62. A rotating plate 68 is rotated to a limit outside the rotating shaft 66. A rotating plate 69 is movably installed at one end of the rotating plate 68. A support block 610 is fixedly installed on the upper front end of the sealing door 2. A rotating shaft 611 is fixedly installed at the upper end of the support block 610.

[0035] The two ends of the spring 67 are fixedly connected to the opposite surfaces of the horizontal frame 61 and the slider 63, respectively. The extension block 65 extends out of the interior of the horizontal frame 61 through the slide groove 64 and is slidably installed with the slide groove 64.

[0036] Rotating plate 68 and rotating plate 69 are connected by a hinge shaft for limited rotation. The bottom center of rotating plate 69 is rotated to the outside of rotating shaft 611.

[0037] In this scheme, the first rotating plate 68 and the second rotating plate 69 are connected by a hinge shaft, which facilitates the rotation between the two sets of rotating plates. The slide groove 64 guides the movement of the extension block 65, ensuring that the extension block 65 moves in a predetermined direction, thereby improving the stability of the movement of the slider 63.

[0038] The working principle of this new type of concrete sealing door will be explained in detail below.

[0039] like Figures 1-5As shown, when the user grasps handle 7 and applies pulling force, the sealing door 2 begins to open. As the sealing door 2 rotates, the support block 610 fixed to it moves accordingly. The support block 610 drives the rotating plate 69 to rotate via the second rotating shaft 611. The rotation direction of the rotating plate 69 corresponds to the opening direction of the sealing door 2. Since the rotating plate 69 and the first rotating plate 68 are connected by a hinge shaft, the rotation of the second rotating plate 69 pulls the first rotating plate 68 to move. During the movement of door frame 1, the extension block 65 is moved via the pivot 66. Since the extension block 65 is fixedly connected to the slider 63, it causes the slider 63 to slide along the slide rod 62 within the horizontal frame 61. When the slider 63 slides to the left on the slide rod 62, it compresses the spring 67 fitted on the slide rod 62, causing the spring 67 to undergo elastic deformation and store elastic potential energy. When people pass through door frame 1, they no longer apply pulling force to the handle 7, and the sealed door 2 is no longer subjected to the pulling force of people's hands. At this time, the spring 67... As the pressure is released, the stored elastic potential energy is released, pushing the slider 63 to the right to return to its original position. During the reset process, the slider 63 drives the rotating plate 68 through the extension block 65 and the rotating shaft 66. The rotation of the rotating plate 68 drives the rotating plate 69 to reset, so that it can drive the sealing door 2 to reset synchronously through the support block 610 and the rotating shaft 611, so that the sealing door 2 moves towards the door frame 1, and finally completes the closing effect, thereby improving the convenience of using the sealing door 2. When the sealing door 2 is gradually closed, the sealing strip 31 set on one side of the door body will be inserted into the sealing groove 5, and the sealing strip 36 will also be inserted into the sealing groove 4. When the sealing strip 36 is inserted into the sealing groove 4, the elastic block 34 is squeezed, which can squeeze the mounting plate 35. After being squeezed, the mounting plate 35 will squeeze the sealing strip 36, so that the sealing strip 36 can be more tightly embedded in the sealing groove 4, thereby greatly improving the sealing effect of the sealing door 2.

[0040] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A new type of concrete sealing door, comprising a door frame (1), a sealing door (2) is hingedly installed on the inner side of the front end of the door frame (1), characterized in that: The sealing door (2) is provided with a sealing mechanism (3) at one end, and the inner side of the door frame (1) is provided with a sealing groove one (4) and a sealing groove two (5) respectively. The upper front side of the door frame (1) is provided with an opening and closing mechanism (6). The sealing mechanism (3) includes a sealing strip (31), the bottom end of which is fixedly connected to the right rear end of the sealing door (2). A groove (32) is provided on one side of the rear end of the sealing door (2). Limiting grooves (33) are symmetrically provided on both sides of the inner wall of the groove (32). An elastic block (34) is fixedly provided at the bottom of the groove (32). An installation plate (35) is slidably installed inside the limiting groove (33). A sealing strip (36) is fixedly connected to the front end of the installation plate (35).

2. A new type of concrete sealing door according to claim 1, characterized in that: The top of the elastic block (34) is fixedly connected to the rear end of the mounting plate (35), the sealing strip one (31) is in contact with the inside of the sealing groove two (5), and the sealing strip two (36) is in contact with the inside of the sealing groove one (4), and both are movably installed.

3. A new type of concrete sealing door according to claim 1, characterized in that: The opening and closing mechanism (6) includes a horizontal frame (61), the bottom end of which is fixedly connected to the upper front end of the door frame (1). A sliding rod (62) is fixedly provided inside the horizontal frame (61), and a slider (63) is slidably installed outside the sliding rod (62). A sliding groove (64) is opened through the bottom end of the horizontal frame (61). An extension block (65) is fixedly provided at the lower end of the slider (63). A rotating shaft (66) is fixedly provided at the lower end of the extension block (65). A spring (67) is sleeved on the left end of the sliding rod (62). A rotating plate (68) is limited to rotate outside the rotating shaft (66). A rotating plate (69) is movably installed at one end of the rotating plate (68). A support block (610) is fixedly provided on the upper front end of the sealing door (2). A rotating shaft (611) is fixedly installed at the upper end of the support block (610).

4. A new type of concrete sealing door according to claim 3, characterized in that: The two ends of the spring (67) are fixedly connected to the opposite surfaces of the horizontal frame (61) and the slider (63), respectively. The extension block (65) extends out of the interior of the horizontal frame (61) through the slide groove (64) and is slidably installed with the slide groove (64).

5. A new type of concrete sealing door according to claim 3, characterized in that: The rotating plate one (68) and the rotating plate two (69) are connected by a hinge shaft for limited rotation installation. The bottom middle part of the rotating plate two (69) is rotated and installed on the outside of the rotating shaft two (611).

6. A new type of concrete sealing door according to claim 1, characterized by: The inner wall of the sealing door (2) is symmetrically provided with mounting holes 1 (8) and 2 (9). The inner rear end of the sealing door (2) is provided with a steel plate (10). Multiple sets of steel bars 1 (11) are symmetrically fixed at the outer end of the steel plate (10). Foam cotton layers (12) are fixed on both sides of the outer wall of the steel plate (10). A rubber layer (13) is fixed on the outer side of the foam cotton layer (12). The inner front end of the sealing door (2) is provided with a concrete slab (14). Multiple sets of steel bars 2 (15) are symmetrically fixed on the outer side of the concrete slab (14).

7. A new type of concrete sealing door according to claim 6, characterized in that: The reinforcing bar one (11) and the reinforcing bar two (15) are fixedly installed with the inside of the installation hole one (8) and the installation hole two respectively, and the steel plate (10) and the concrete plate (14) are fixedly installed with the inside of the sealing door (2).

8. A new type of concrete sealing door according to claim 6, characterized by: The sealing door (2) is fixedly provided with a handle (7) on the front end one side.